2-5 engineering drawing ii auto cad

2/5 MECH-223

DRAFT

DAE Mechanical Technology

2nd Year

2011-2012

Engineering Drawings-II

(MECH-223)

1. Lesson Plans

2. Operation Sheets

NAVTTC / TEVTA/ JICA

December 2011

This TLM has been developed in the "Project for Development of Center of Excellence of Technical Education", on

Mechanical Technology at Government College of Technology Railway Road (GCT RR), by a collaboration work

among National Vocational & Technical Training Commission (NAVTTC), Punjab Technical Education and Vocational

Training Authority (TEVTA) and Japan International Cooperation Agency (JICA).


(MECH-223)

LESSON PLANS

Table of Contents Symbolic Representations 1

Symbolic Representations 3

Symbolic Representations 5

Development of solids 7



Intersection of ducts/ pipes & solids 13

Inter section of ducts/ pipes & solids 15

Intersection of ducts / pipes &solids 17

Sectioning 19

Sectioning 21

Sectioning 23

Fasteners description 25



Rivet & riveted joint 31



Keys & Cotter 37

Keys & Cotters 39

Bearing 41

Bearing 43

Shaft Coupling 45

Shaft coupling 47

Shaft coupling 49

Production drawing 51




Tolerance, allowance and fits 59



1

LESSON PLAN TITLE OF TOPIC (Short, Description) Lesson No: 01 Symbolic Representations Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II

GENERAL OBJECTIVES:- 1. Define matching symbols. 2. Explain welding symbols.

SPECIFIC OBJECTIVES:- Expected Entry behaviors 1. 2.

Can learn the uses of this Symbol. Can know the practical application.

(MT-163)

Time allocated

TOPICS,NOTES (Brief) With teacher student activities

Keypoints/Reminders/Sketch Teaching Aids/Evaluation

20

(1) Machining symbols.

Definition.

Types

Construction of symbols.

Placing of values on them.

Sings indicates the texture of the port surface. 1. Old 2. New 3. Positional

//

2

Time allocated


Key points/Reminders/Sketch Teaching Aids/Evaluation

20

5

(2) Welding symbols.

Definition

Construction & reading of given information

Applications.

Give all information of weld.

Arrow to surface to be weld. Field of fabrication.

Testing & Follow Up:- (to see if leaner accompanied information or skill)

State machining symbols. Define welding symbols.

Special Assignment:- (Usually home work) Draw the sketches of different matching symbols. Draw the welding symbols.

Tools Material & Aids:-

Reference:- (Author, title, publisher, page or chapter number, date of publication) Engineering graphics

3


GENERAL OBJECTIVES:- 1. State material symbols.

2. Define thread symbols. SPECIFIC OBJECTIVES:- Expected Entry behaviors 1. 2. 3.

Explain the practical use Symbol. Can draw and apply symbols. Can define and use the thread symbols.

Time allocated



15 20

Material symbols.

Types

Uses

Method of drawing

Application. Thread symbols Definition

Indicate different material used in production. Cast-iron, mills, steel, rubber etc.

To show threads on different bolts.

4

Time allocated



20

10

Types a. Detail

b. Simplified

c. Schematic

d. Comparison

Notes & specification

Testing & Follow Up: - (to see if leaner accompanied information or skill) Explain material symbols. Discus in brief threads symbols and its types.

Special Assignment: - (Usually home work) Draw any five material symbols Draw sketch of internal & external thread.

Tools Material & Aids:-

Reference: - (Author, title, publisher, page or chapter number, date of publication) Engineering graphics.

5


General Objective:- The learner will be able to 1. Explain plumbing symbols.

2. Define and apply the piping symbols. Specific Objectives:- Expected Entry behaviors 1. 2. 3.

The student can Explain plumbing and piping symbols. Draw the above symbols. Apply the symbols on a drawing.

Time allocated



15

15

Plumbing symbols.

Definition

Types

Application

Piping symbols

Definition

Types i. Single line

ii. Double line

Signs which on used to show different plumbing fixtures. Bath, tub, sink, basin etc. Signings indicate the pipe fitting. There are so many types In single line shape. Indicate in actual shape.

6

Time allocated



10

05

Placing of symbols. Taking of Dimension for double line symbols. Practice. Testing.

Tables are used after selecting pipe dia. Process industries.


What do you know about plumbing symbols? Explain piping symbols and uses.

Special Assignment:- (Usually home work) Draw the a) Plumbing symbols b) Piping symbols.

Tools Material & Aids:- ___________________ ________________________________ __________________________________________________

Reference:- (Author, title, publisher, page or chapter number, date of publication) Engineering graphics.

7

LESSON PLAN TITLE OF TOPIC (Short, Description) Lesson No: 04 Development of solids. Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II

GENERAL OBJECTIVES:- 1. Explain solid and its types. 2. Define frustum and truncation.

SPECIFIC OBJECTIVES:- Expected Entry behaviors 1. Differentiate prism and pyramid. 2. Indentify right and oblique solid. 3. Compare frustum and truncation.

Time allocated



5

35

Solids. Definition. Types.

a) Pyramid b) Prism. c) Right d) Oblique

Three dimensional object All faces in triangular. All faces are in rectangular Axis at 900 to H.P. Axis not at 900 to H.P.

8

Time allocated



05

e) Frustum.

f) Truncation. Testing

Solid is cuts parallel to base. Cuts # to base.


State solid prism and pyramid. Differentiate frustum and truncation.

Special Assignment:- (Usually home work) Draw free hand sketch of any three prisms. Sketch any four types of pyramid.

Tools Material & Aids:- __________________________________________________ __________________________________________________


9

LESSON PLAN TITLE OF TOPIC (Short, Description) Lesson No: 02/2 Development of solids Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II

GENERAL OBJECTIVES:- The learner will be able to 1. Define development 2. Know the method involved in finding development

SPECIFIC OBJECTIVES:- Expected Entry behaviors 1. 2. 3.

Understand development. Write the procedure of development. Understand the application of development.

Time allocated



05

10

10

Development Definition Methods. a) Parallel line b) Radial line

Unfold surface of the surface Use for prismatic objects. Only four pyramid whose inclined edge is used as radius.

10

Time allocated



10

05

05

c) Triangulation. Application. Testing

Solid having different ends. In all type of packaging industries.

Testing & Follow Up:- (to see if leaner accompanied information or skill) State development and uses. Name the methods of developing solids.

Special Assignment:- (Usually home work) Develop square prism and give step by step procedure.



11

LESSON PLAN TITLE OF TOPIC (Short, Description) Lesson No:- 06 Development of solids. Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II

GENERAL OBJECTIVES:- Learner will be able to 1. Explain true length & how it is find out.

SPECIFIC OBJECTIVES:- Expected Entry behaviors 1. 2. 3. 4.

Understand true length. Know how true length is find out. Understand procedure of developing. Prisms and pyramids.

Time allocated



05

True length. Methods of finding Tru length. a) Revolution. b) Triangulation

Actual length of edge on principal axis.

12

Time allocated



15 15

Procedure of drawing development of

a. Prism

b. pyramid

Testing & Follow Up: - (to see if leaner accompanied information or skill)

Define true length and how can find. How prism and pyramid is developed.

Special Assignment: - (Usually home work) Draw development of prism. Draw a development of pyramid.



13

LESSON PLAN TITLE OF TOPIC (Short, Description) Lesson No: 07 Intersection of ducts/ pipes & solids Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II

GENERAL OBJECTIVES:- Student will be able to 1. Define surface and its types. 2. Explain method of finding intersection.

SPECIFIC OBJECTIVES:- Expected Entry behaviors 1. 2.

Understand surface and its types. Know the methods of finding intersection.

Time allocated



20

Surface Types

Plan

Curved i) Single ii) Double

Cube Cone & cylinder.

14

Time allocated



15

15

Method of finding line of intersection. i. Line method.

ii. Cutting plane method.

i)

ii)

Testing & Follow Up: - (to see if leaner accompanied information or skill) What do you know about surface? Explain single curved surface.

Special Assignment: - (Usually home work) Define surface and their types. What do you know about in method?



15

LESSON PLAN TITLE OF TOPIC (Short, Description) Lesson No: 08 Inter section of ducts/ pipes & solids. Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II

GENERAL OBJECTIVES:- Beginner will be able to

1. Define plane surface.

2. Know curve surface and its type. SPECIFIC OBJECTIVES:- Expected Entry behaviors Student will be able to

Find the line of intersection of a) Plan surfaces.

b) Curved surfaces.

Time allocated



25

Drawing line of intersection of Plane surfaces.

16

Time allocated



25

ii) Curved surface.

Testing & Follow Up:- (to see if leaner accompanied information or skill) What is a plan surface? Where intersection used?

Special Assignment:- (Usually home work) Give step by step procedure find out the Line of intersection between Cylinders



17

LESSON PLAN TITLE OF TOPIC (Short, Description) Lesson No: 09 Intersection of ducts / pipes &solids Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II

GENERAL OBJECTIVES:- Students will be able to 1. Explain the procedure of finding intersection 2. Define uses and application of intersection

SPECIFIC OBJECTIVES:- Expected Entry behaviors 1. Find the line of intersection. a) Cone cylinder. 2. Explain application of intersection. 3. Define use of intersection.

Time allocated



30

10

Cone &cylinder. Application

In all packaging and fabrication

fields.

18

Time allocated



10

Uses

To find out the L. S. of all kinds patterns.

Testing & Follow Up: - (to see if leaner accompanied information or skill) How line of intersection is find between cone & cylinder Explain use and application of intersection.

Special Assignment: - (Usually home work) Find the intersection curve between cone & cylinder. _______________________________________________


Reference: - (Author, title, publisher, page or chapter number, date of publication) Technical drawing.

19

LESSON PLAN TITLE OF TOPIC (Short, Description) Lesson No: 10 Sectioning Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II GENERAL OBJECTIVES:- The students will be able to 1. Understand section 2. Define purposes of section

SPECIFIC OBJECTIVES:- Expected Entry behaviors They will be able to 1. Explain section. 2. Define purposes of section. 3. Differentiate cutting plane line & section 4. Know the construction of c. p line.

Time allocated



10

10 10

Introduction Purposes Cutting plane

These are used to show

1. Internal factors of a port 2. Give dimensions of cross- section. 3. Indicated material used 4. Minimize dotted lines.

Imaginary surface which indicate the path of section.

20

Time allocated



10

5

5

Position of cutting plane. Construction of c / p. Section lines.

It may be straight either at any angle as required. To indicate sectional surface.

This shape line draws at 450 and 3mm apart.

Testing & Follow Up:- (to see if leaner accompanied information or skill) What is section?

Explain cutting plane line.

Special Assignment:- (Usually home work) Define section and its purposes. Give short note on cutting plan c. p line and section lines.



21

LESSON PLAN TITLE OF TOPIC (Short, Description) Lesson No: 11 Sectioning Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II

GENERAL OBJECTIVES:- Students will be able to 1) Understand sectional view 2) Define types of sectional views.

SPECIFIC OBJECTIVES:- Expected Entry behaviors 1. 2. 3.

Explain sectional views. Explain types of sectional views Draw different types of sectional views.

Time allocated



10

40

Sectional views. Types. 1. Full

2. Half

3. Broken

View draw off removing portion of a part.

One half is removal.

One fourth part is removal.

Required portion is broken the detail is shown.

22

Time allocated



4. Revolved section is draw in section

view.

5. Removed sectional view is drawn in working area. Outside the view.

6. Boundary section lines are drawn touching b / line in dotted ferm

Testing & Follow Up:- (to see if leaner accompanied information or skill) Explain sectional view. State half broken section.

Special Assignment:- (Usually home work) Explain sectional view and draw sketch. Define any four types of sectional views.

Tools Material & Aids


23

LESSON PLAN

TITLE OF TOPIC (Short, Description) Lesson No: 12 Sectioning Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II

GENERAL OBJECTIVES:- Learner will be able to understand. 1. Auxiliary, thin, assembly section. 2. Know the parts not sectioned.

SPECIFIC OBJECTIVES: Expected Entry behaviors Students will be able to 1. Explain auxiliary thin and assembly section. 2. They can define parts which are not section.

Time allocated



30

Types cont. 7- Auxiliary 8- Thin 9- Assembly 10- phantom

24

Time allocated



20

11- Alleged section. Parts are not sectioned.

Testing & Follow Up:- (to see if leaner accompanied information or skill) What is thin section? Name the standard parts not sectioned.

Special Assignment:- (Usually home work) Draw free hand sketch of assembly section.

Draw sketch and show standard parts.


Reference:- (Author, title, publisher, page or chapter number, date of publication) Engineering graphic.

25

LESSON PLAN TITLE OF TOPIC (Short, Description) Lesson No: 13 Fasteners description Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II

GENERAL OBJECTIVES:- The students will be able to 1. State fastener and its main two types. 2. Define terminology of screwed fasteners.

SPECIFIC OBJECTIVES:- Expected Entry behaviors 1. Fasteners and their types. 2. Differentiate temporary and permanent fasteners. 3. Explain technical term used in fasteners.

Time allocated



15

35

Fasteners. a) Permanent. b) Temporary. Nomenclature. 1. Nominal dia 2. Major dia . 3. Minor dia . 4. Pitch dia 5. Theoretical depth.

Soldering, brazing, riveting Welding 1. Threaded. 2. UN threaded

26

Time allocated



6. Working depth 7. Thread angle 8. Root 9. Crest 10. Flank 11. Axis 12. Pitch 13. Lead

Testing & Follow Up:- (to see if leaner accompanied information or skill) What is fastener?

Define temporary fastener. Special Assignment:- (Usually home work) Draw a sketch of thread on give all terms on it.

Tools Material & Aids:- __________________________________________________ __________________________________________________ Reference:- (Author, title, publisher, page or chapter number, date of publication) Engineering graphics.

27


GENERAL OBJECTIVES:- The students will be able to 1. Understand screws and their types. 2. Know types of thread their proportions.

SPECIFIC OBJECTIVES: Expected Entry behaviors The student can 1. Explain screws. 2. Define types of screws. 3. Explain thread and its types. 4. Calculate the different proportions.

Time allocated



20

15

Screws 1. M/c screw 2. Cap screw 3. Set screw Threads. V. Shaped a) Sharp thread b) B.S. W. thread c) B. A. thread d) Sellers thread

These are small in dia then bolt ads are used with nut or without nut. Small in section r 3to 20mm and ore used with nut. They have 25mm length or less. Prevent rotary motion between two parts. H= 0.86P 600 H= 0.96p H= 0.64p 550 roots ad reast one rounded off. H= 1.36p h= 0.64p 47 roots ad crests are rounded off. H= 0.86p h= 0.64p 60 roots and crests are flated.

28

Time allocated



Power transmission a) Square b) Acme c) Knuckle d) Butters Transmit power in single side.

T=p/2, H= p/2 =900

H=0.5p+1mm =290 H=0.5p R=0.25p Same circular in shape. H=p,h=0.75p dia 450

Testing & Follow Up: - (to see if leaner accompanied information or skills)

What is Screws? Name the power transmission screws.

Special Assignment: - (Usually home work) What is screw discus their types briefly. Explain the v and power transmission thread.


Reference: - (Author, title, publisher, page or chapter number, date of publication) Engineering graphics

29


GENERAL OBJECTIVES:- The students will be able to 1) Understand nut, bolt and studs. 2) Know the lock and locking methods.

SPECIFIC OBJECTIVES: Expected Entry behaviors The student can 1. Explain nut, bolt and studs. 2. Identify nut bolt and studs. 3. Define locking. 4. Explain methods of locking.

Time allocated



20

Nuts

Square

Hexagonal Bolt Stud

1 - Flanged 2- Cap 3- Dome 4 - Capstan 5 Ring 6 Wing Squ- hex cheese , cup , tee , Counter head, eye, and Hook.

Plain Collar Square section

30

Time allocated



Locking devices. 1. Lock nut

2. Slotted nut

3. Castle nut

4. Sawn nut

5. Simenons nut

6. Grooved nut

7. Stop plate

8. Spring washer

Consist two nuts. Having slot for pine. Base have with upon cylinder and having outs for spilt pin. Having side cut with set screw. Nut used with fiber ring. Groove is made at bottom for set screw. Plate with any intervals. Nut used by spring washer.


What is difference between nut and bolt? Name any three locking devices.

Special Assignment:- (Usually home work) Explain nut, bolt and studs with their types.

Explain locking with sketches.



31

LESSON PLAN TITLE OF TOPIC (Short, Description) Lesson No: 16 Rivet & riveted joint Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II

GENERAL OBJECTIVES:- The students will be able to 1. Know rivet and its parts and heads, 2. Understand the technical terms used In riveted joints.

SPECIFIC OBJECTIVES: Expected Entry behaviors The student can 1. Explain rivet and its parts. 2. Define types of rivet heads. 3. Define material of rivet 4. Explain terms used in riveted joint.

Time allocated



20

Rivet Parts 1. Head 2. Body 3. Tail Types of heads.

a. Boiler b. Structure c. General purpose.

32

Time allocated



30

A material depends upon the usage. Technical terms. 1. Pitch 2. Marginal dieseline 3. Cover plate 4. Main plate 5. Diagonal pitch 6. Diameter of nut.

Generally made from M/S


What is rivet name its parts. Define pitch, cover plate, diagonal pitch.

Special Assignment:- (Usually home work) Define rivet and its parts along with sketch. Explain material of rivet and technical terms.



33


GENERAL OBJECTIVES:- The students will be able to 1. Understand the lap & butt joint and types. 2. Understand riveting methods.

SPECIFIC OBJECTIVES: Expected Entry behaviors The student can 1. Explain lap &butt joint and types. 2. Differentiate lap and butt joint. 3. Explain methods of riveting. 4. Explain sequence of riveting.

Time allocated



30

Riveted joints. Lap 1. Single 2. Double 3. Triple

Butt:- 1. Singe 2. Double

3. triple

Two plates are over laped.

Having only one row of rivets. Having two rows of rivets. Having three rows of rivets.

Two plates on placed parallel and 3rd one is placed over their. One row of rivet in each plate. Two rows of rivet in each plate. Three rivets one placed in each plate.

34

Time allocated



20

Riveting process 1. Hand

2. Machine

3. Chain

4. Zig Zag

Riveting process is done by hand process is completed by press In sequence. Not in sequence.

Testing & Follow Up:- (to see if leaner accompanied information or skill) Explain lap joint. Define butt joint

Special Assignment:- (Usually home work) Explain lap joint and its types. State butt joint and their types.



35


GENERAL OBJECTIVES:- The students will be able to 1. Understand the lap & empirical proportions. 2. Know how different proportions are calculated.

SPECIFIC OBJECTIVES: Expected Entry behaviors The student can 1. Explain Empirical formula. 2. Calculate different proportions.

Time allocated



15

Empirical proportions. i. D=1.2 T inch

ii. D=6 T mm

iii. D= a T cm

If dia of rivet is given then we can find out the thickness of plate and v.v.

36

Time allocated



35

Calculation of 1. Dia of rivet

2. Pitch

3. Thickness of m/plot.

4. Cover plate in single.

5. Cover plate in double.

6. Marginal distance.

T is given = 16mm. D= 6 T P= 3d T=1 (d/6)2

t= 1.25T t1= 0.68T Md= 1.5d


What is empirical formula? How we find the marginal distance

Special Assignment:- (Usually home work) Explain Empirical formula. Calculate dia of rivet, thickness of plate. Pitch and marginal distance.



37

LESSON PLAN TITLE OF TOPIC (Short, Description) Lesson No: 19 Keys & Cotter Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II

GENERAL OBJECTIVES:- The students will be able to 1. Keys and terms. 2. Understand the types of keys.

SPECIFIC OBJECTIVES:- Expected Entry behaviors The student can 1. Define key. 2. Explain terms for keys. 3. Explain saddle keys. 4. Explain Sunk keys.

Time allocated



15

Keys Terms 1. Key 2. Keys seat groove of shaft 3. Key woul groove of Hub.

Types a. Saddle

Transmitt low tarque. Also called low friction keys.

38

Time allocated



35

Hallow Flat b. Sunk keys Square Reetang Parallel Taper


What is key, keyway and key seat? Differentiate saddle keys.

Special Assignment:- (Usually home work) Define key and terms used along with sketch. Explain types of keys and draw their sketches.

Tools Material & Aids:- ________________________________________ ________________________________________


39

LESSON PLAN TITLE OF TOPIC (Short, Description) Lesson No: 20 Keys & Cotters Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II

GENERAL OBJECTIVES:- The students will be able to 1. Understand the sunk keys. 2. Differentiate key & cotter.

SPECIFIC OBJECTIVES: Expected Entry behaviors The student can 1. Define key. 2. Explain terms for key & cotter. 3. Compare key & cotter. 4. Calculate different dimension.

Time allocated



15

5. Gib Head 6. Wood ruff 7. Feather 8. Spline How keys are designated Cotters Plan Taper

Taper may be only in one side or both side if required.

40

Time allocated



15

10

Gib head Insertion Comparison

Key are // axis Cotter are perpendicular axis


Name any three types of sunk keys. What is difference between key & cotter?

Special Assignment:- (Usually home work) Compare key and cotter. Explain types of sunk keys and draw their sketches.

Tools Material & Aids:- ______________________________________________ _____________________________________________


41

LESSON PLAN TITLE OF TOPIC (Short, Description) Lesson No: 21 Bearing Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II GENERAL OBJECTIVES:- The students will be able to 1. Understand about high friction bearing. 2. Know the importance and type of bearing.

SPECIFIC OBJECTIVES: Expected Entry behaviors The student can 1. Explain bearing and importance. 2. Define high friction bearing. 3. Understand solid bearing. 4. Differentiate open & solid bearing.

Time allocated

TOPICS,NOTES (Brief) With teacher student

activities


10

10

15

Introduction Importance Types

a) According to work i. Journal

ii. Pivot

iii. Thrust

i. Load perp. axis

ii. //axis vertically iii. //axis horizontally

42

Time allocated



25

b) Bearing to construction

i. Solid bearing

ii. Open bearing


Explain importance of bearing. Define thrust bearing.

Special Assignment:- (Usually home work) Explain bearing and its types according to work. Explain construction of solid and open bearing.


Reference:- (Author, title, publisher, page or chapter number, date of publication) Technical drawing for technicians

43

LESSON PLAN TITLE OF TOPIC (Short, Description) Lesson No: 22 Bearing Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II

GENERAL OBJECTIVES:- The students will be able to 1. Explain bushed & pedestal Bearing. 2. Understand low friction bearing.

SPECIFIC OBJECTIVES: Expected Entry behaviors The student can 1. Explain The parts of pedestal. 2. Define high friction bearing. 3. Differentiate low &high friction bearing. 4. Understand the parts of ball bearing.

Time allocated



25

1. Bushed bearing

2. Pedestal bearing Low friction Types 1. Ball bearing

2. Roller bearing

Having special balls of steel Having a roller taper OR parallel.

44

Time allocated



25

Parts 1. Outer race 2. Inner race 3. Cage 4. Bolls

Uses

Often used on high special Shafts.


Name any two types of high friction bearings. Name ports of low friction bearings.

Special Assignment:- (Usually home work) Explain bushed &pedestal bearing and draw sketch. Define ball, roller bearing and its parts.


Reference:- (Author, title, publisher, page or chapter number, date of publication) Technical drawing for technicians

45

LESSON PLAN TITLE OF TOPIC (Short, Description) Lesson No: 23 Shaft Coupling Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II

GENERAL OBJECTIVES:- The students will be able to 1. Know the coupling & its used. 2. Understand sleeve/ muff coupling.

SPECIFIC OBJECTIVES: Expected Entry behaviors The student can 1. Explain coupling. 2. Explain uses of coupling 3. Define rigid coupling. 4. Explain type of rigid coupling.

Time allocated



5

20

Introduction Uses Types 1. Rigid

a) Sleave/ muff

1. To transmit power 2. To lengthing shafts.

Work under some limitation. Like axis are lying in a alignment.

46

Time allocated



25

Box Half lap Spilt


Define compiling Name the types of box coupling

Special Assignment:- (Usually home work) Explain coupling. Explain box, half lap and spilt muff coupling.

Tools Material & Aids:- _______________________________________ _______________________________________

Reference:- (Author, title, publisher, page or chapter number, date of publication) Engineering drawing by Mathur

47

LESSON PLAN TITLE OF TOPIC (Short, Description) Lesson No: __24 Shaft coupling Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II

GENERAL OBJECTIVES:- The students will be able to 1. Define coupling and its purposes. 2. Understand rigid coupling & its types.

SPECIFIC OBJECTIVES: Expected Entry behaviors The student can understand. 1. Define coupling. 2. State the purposes of coupling. 3. State the types flange coupling. 4. Differentiate protective and non protective

Coupling

Time allocated



20

Flanged Types of flangs 1. Solid 2. Casted

Types of coup Bolts are not under cover

48

Time allocated



30

Protective

Bolts are under projection/ proportions. D= Nominal diameter of the shaft = 50 A = 4D = 4x50 = 200 B = 3D = 3x50 = 150 C = 1.5D = 1.5x 50 = 75 E = 2D = 2x50 = 100 F = 0.5D = 0.5x50 = 25 G = D = 50 H = 6-9mm Note; 1. Depth of socket should be 3mm deep

more height of projection. 2. Dia of bolt/ bolt hole has D/3.


Define types of flanges. Name the flange coupling.

Special Assignment:- (Usually home work) Explain types of flanges and flanged coupling. Design flange coupling if dia of shaft is 30mm.

Tools Material & Aids:- _________________________________________________ _________________________________________________

Reference:- (Author, title, publisher, page or chapter number, date of publication) Engineering drawing by Mathur.

49

LESSON PLAN TITLE OF TOPIC (Short, Description) Lesson No: 25 Shaft coupling Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II

GENERAL OBJECTIVES:- SPECIFIC OBJECTIVES: Expected Entry behaviors

Time allocated



8

22

Flexible coupling Types 1. Hooks Angle virus 00 - 300 2. Oldhams Used for shafts having parallel axis this value is 10mm.

50

Time allocated



20

3. Bush Type

4. Pin Type

5. Chain Type

Testing & Follow Up:- (to see if leaner accompanied information or skill) __________________________________________________ __________________________________________________ Special Assignment:- (Usually home work) __________________________________________________ __________________________________________________ Tools Material & Aids:- __________________________________________________ __________________________________________________ Reference:- (Author, title, publisher, page or chapter number, date of publication) __________________________________________________ __________________________________________________

51

LESSON PLAN TITLE OF TOPIC (Short, Description) Lesson No: 26 Production drawing Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II

GENERAL OBJECTIVES: The learner will be able to. 1. Know the working drawing. 2. Know about, detail, assembly and 3. Sub assembly drawing.

SPECIFIC OBJECTIVES: Expected Entry behaviors Will be able to 1. Define importance of working drawing. 2. Explain detail drawing. 3. Explain assembly drawing. 4. State sub assembly drawing.

Time allocated



20

10

10

10

Introduction

Importance

Detail drawing

Assembly drawing

Sub assembly drawing

All kind of informations or given on each part regarding production. In this drawing all parts are shown in working condition. In this some parts are assembled which is a part of a unit/ machine for example carriage of lath machine.

52

Time allocated



30


Define working drawing Name the types of working drawing.

Special Assignment:- (Usually home work) Define working drawing and its importance. Explain detail, assembly and sub assembly drawing with examples.

Reference: - (Author, title, publisher, page or chapter number, date of publication) Engineering drawing by verik

53

LESSON PLAN TITLE OF TOPIC (Short, Description) Lesson No: 27 Production drawing Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II GENERAL OBJECTIVES: The learner will be able to. 1. Know the types of working drawing.

2. Understand the function of each types SPECIFIC OBJECTIVES: Expected Entry behaviors Will be able to 1. Explain working, casting, forging drawing. 2. Define stamping, welding drawings. 3. State installation, diagrammatic drawing. 4. Explain exploded and other drawing.

Time allocated



25

Types 1. Working drawing

2. Casting drawing

3. Forging drawing

4. Stamping drawing

5. Welding drawing

54

Time allocated



25

6. Installation drawing

7. Exploded drawing

8. Diagram assembly drawing

9. Simplified drawing

10. Sheet metal drawing

Testing & Follow Up:- (to see if leaner accompanied information or skill) What is exploded drawing Name of five types of working drawing.

Special Assignment:- (Usually home work) Define the types of working drawing. Draw a sketch of exploded of any assembly.


Reference:- (Author, title, publisher, page or chapter number, date of publication Drafting technology

55


GENERAL OBJECTIVES: The learner will be able to 1. Know the essentials of working drawing.

2. Understand about part list SPECIFIC OBJECTIVES: Expected Entry behaviors Will be able to 1. Explain the essentials of working drawing. 2. Define basic requirements of a) Title block b) Material list

Time allocated



25

Essentials requirements. 1. Clear concept.

2. Types of views

3. Dimensions

4. Sectioning

5. Hidden lines

56

Time allocated



25

6. Scale

7. Bill of material

8. Part/ identification no

9. Specification no

10. Title block

Testing & Follow Up: - (to see if leaner accompanied information or skill)

Name of five requirements of working drawing. What do you know about identification no

Special Assignment: - (Usually home work) Explain essentials of working drawing. What is a requirements of title block


Reference:- (Author, title, publisher, page or chapter number, date of publication Engineering graphics by verick

57


GENERAL OBJECTIVES: The learner will be able to. 1. Know title block

2. Understand title strip SPECIFIC OBJECTIVES: Expected Entry behaviors Will be able to 1. Explain title block. 2. Know the requirements of title block. 3. Define title strip. 4. Understand the filling of title strip.

Time allocated



25

Title block requirement

1. Name of company

2. Scale used

3. Date

4. Name of part

5. Drawing no

6. Drafting room record

Starting ending 1. Name of drafter. 2. Name of tracer if necessary. 3. Name of checker Note- This not a standard Because each industry having own title block.

58

Time allocated



20

Title/ record strip

Requirements.

1. Company

2. Drafter

3. Checker

4. Date

5. Scale

6. Name of parts

7. Drawing No

Note It is also not standardized, each company having their own requirements.


What is title block? Differentiate title block and title strip.

Special Assignment:- (Usually home work) Explain title block and its requirements. Define title strip and its requirements.

Tools Material & Aids:- ___________________________________ ___________________________________


59

LESSON PLAN TITLE OF TOPIC (Short, Description) Lesson No: 30 Tolerance, allowance and fits Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II

GENERAL OBJECTIVES: The learner will be able to. 1. Know Tolerance and its importance. 2. Understand the types of tolerance.

SPECIFIC OBJECTIVES: Expected Entry behaviors Will be able to 1. Explain tolerance. 2. Explain its importance. 3. Define types of tolerance.

Time allocated



20

20

Tolerance

Introduction

Importance

Types

1. Uni lateral

2. By lateral

60

Time allocated



10

Examples


Define tolerance. Name the types of tolerance.

Special Assignment:- (Usually home work) Explain tolerance and its importance. Explain types of tolerances.


Reference:- (Author, title, publisher, page or chapter number, date of publication) Engineering graphics by verick.

61

LESSON PLAN TITLE OF TOPIC (Short, Description) Lesson No: 31 Tolerance, allowance and fits Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II

GENERAL OBJECTIVES: The learner will be able to 1. Understand allowance. 2. Know the types of allowance

SPECIFIC OBJECTIVES: Expected Entry behaviors Will be able to 1. Define allowance. 2. State the importance of allowance. 3. Explain types of allowance. 4. Compare tolerance& allowance.

Time allocated



20

20

Allowance

Definition

Importance

Types

62

Time allocated



10

Comparison:-


What is importance of allowance in production? Name the types of allowance.

Special Assignment:- (Usually home work) Explain allowance and its types. Compare tolerance & allowance.

Tools Material & Aids:- _______________________________ _______________________________

Reference:- (Author, title, publisher, page or chapter number, date of publication Engineering graphics by verick.

63

LESSON PLAN TITLE OF TOPIC (Short, Description) Lesson No: 32 Tolerance, allowance and fits. Name: Subject (Course Title): MECH-223 Time: 50 min Engineering Drawing & CAD II

GENERAL OBJECTIVES: The learner will be able to. 1. Understand fits. 2. Know the types of fit

SPECIFIC OBJECTIVES: Expected Entry behaviors Will be able to 1. Define fit. 2. State the importance of allowance. 3. Explain types of fits. 4. Compare Application of fits.

Time allocated



20 20

Fit

Definition

Importance

Types

64

Time allocated



20

Application:-


What is importance of fits? Name the types of fits.

Special Assignment:- (Usually home work) Explain fits and its types. Compare tolerance & fits.




(MECH-223)

OPERATION SHEET

Table of Contents Plumbing & Piping Symbols 1

Welding & Thread Symbols 3

Conventional Breaks & martial Symbols 5

Development of Prisms 7

Development of Pyramids 9

Development of Cone 11

Development of Cylinder 13

Intersection of plane surfaces 15

Intersection of Curved Surfaces 17

NUT 19

Thread Sections 21

Locking Devices 23

Rivet Heads 25

LAP Joint 27

BUTT Joint 29

Types of Keys 31

Split Muff Coupling 33

Flanged Coupling 35

Oldhams Coupling 37

HOOKs /Universal Coupling 39

Knuckle Joint 41

Bushed Bearing 43

Ball Bearing 45

Plummer Block (Detail) 47

Plummer Block (Assembly) 49

Stop Valve 51

Connecting Rod End (detail & assembly) 53

Screw Jack (detail & assembly) 55

Tail Stock (detail) 57

Tail Stock (assembly) 59

Bearing Housing 61

Shaft Seal Unit (Assembly) 63

Flange (Orthographic Views) 65

1

Operation Sheet No -1 Operation /job: - Plumbing & Piping Symbols Name: - Muhammad Hafeez Subject: - Engineering Drawing & CAD II (Mech. 223) Technology: Mechanical Objectives: - Learner will be able to Time & Date 3 Hours 1. Understand and use the symbols. 2. Draw piping and plumbing symbols. Introduction, Preparation & Motivation: - Different fitting are shown and the use of each fillings may be tell. Machines/Equipment/ Tools/ Materials: - Drafting material, instruments, and Templates.

Steps/Procedure/method Key Points/Precautions For Skillful Performance

1. Plan the sheet according to the shown pattern. 2. Draw the symbols on % scale or suitable size. 3. Name the symbols in 3 mm height. 4. Draw this in proper weight.

Application and Try out: Student are try to draw the symbols.

Safety Precautions / Care:

1. Study the symbols carefully.

2. Use correct instrument for accuracy.

3. Draw the symbols with suitable proportions.

2

Special Assignment:

1. Draw the given symbol as per instructions.

Drawing/Diagram/Sketch:

References: Engineering Drawing by W.J. Luzader

3

Operation Sheet No -2 Operation /job: - Welding & Thread Symbols Name: - Muhammad Hafeez Subject: - Engineering Drawing & CAD II (Mech. 223) Technology: Mechanical Objectives: - Learner will be able to Time & Date: 1. Understand Welding & Thread Symbols. 2. Draw /Application of above symbols. Introduction, Preparation & Motivation: - Charts, Models, are shown. Machines/Equipment/ Tools/ Materials: - Drafting instrument/ Material/ Aid etc.


1. Distribute the sheet accordingly.

2. Symbols are drawn on suitable size in the provided space.

3. Symbols are drawn with proper way.

4. Names are listed in 3mm height.

Application and Try out: Student draw the relevant symbols.


1. Divide the sheet carefully.

2. Study the symbols & drawn their proportionally.

4

Special Assignment: Draw the given symbols on a drawing sheet. Drawing/Diagram/Sketch:

References: Engineering Graphics by Werik

5

Operation Sheet No -3 Operation /job: - Conventional Breaks & martial Symbols Name: - Muhammad Hafeez Subject: - Engineering Drawing & CAD II (Mech. 223) Technology: Mechanical Objectives: - Learner will be able to Time & Date: 1. Draw the Conventional Breaks. 2. Draw the martial Symbols. Introduction, Preparation & Motivation: - Teacher tell the student use of Breaks & martial Symbols. Machines/Equipment/ Tools/ Materials: - Drafting instrument/ Material/ Aid etc.


1. Divide the sheet 2 parts vertically one for Breaks

and other for sectioning materials.

2. Draw the given breaks and symbols very carefully.

3. Names are listed in 3mm.

Application and Try out: The students will try to draw the above.


1. For drawing these the suitable lines are used.

2. Use sharp lead pencils.

3. Use sharp point for compass.

6

Special Assignment: Draw the given drawing on a drawing sheet. Drawing/Diagram/Sketch:

References: Engineering Graphics by Werik

7

Operation Sheet No -4 Operation /job: - Development of Prisms Name: - Muhammad Hafeez Subject: - Engineering Drawing & CAD II (Mech. 223) Technology: Mechanical Objectives: - Learner will be able to Time & Date: They can develop the simple solids. Introduction, Preparation & Motivation: - Show different model of solids charts.. Machines/Equipment/ Tools/ Materials: - Drafting instrument/ Drawing Sheets/ Helping Aid etc.


1. Draw front & top view of the solid to be

developed.

TOP FRONT

Application and Try out: These are used in packaging industries.


1. Study the construction of solid carefully.

2. Front & Top should be inline vertically.

3. Dimensions are taken very carefully.

8

Special Assignment: Draw the given drawing on a drawing sheet. Drawing/Diagram/Sketch:

References: Engineering Graphics by Luzadder

9

Operation Sheet No -5 Operation /job: - Development of Pyramids Name: - Muhammad Hafeez Subject: - Engineering Drawing & CAD II (Mech. 223) Technology: Mechanical Objectives: - Learner will be able to Time & Date: 1. Find true length. 2. Apply the Rainial line method. Introduction, Preparation & Motivation: - Solid & charts are shown. Machines/Equipment/ Tools/ Materials: - Drafting instrument/ Drawing Sheets/ Helping Aid etc.


1. Draw front & top view of the solid to be

developed.

2. Find true length if required.

3. Draw semi circular are as per radius true length.

4. Local point 1D, 2D, 3D & 4D on the same arc as per length of the sides of solid.

5. Join AD to points 1D, 2D, 3D, and 4D.

6. Join point 1D, 2D, 3D, and 4D straightly.

7. Add base of the solid.

Application and Try out: These are used in packaging industries.


1. Study the construction of solid carefully.



4. Find true length carefully.

10

Special Assignment: Develop the solids as instructed by the teacher. Drawing/Diagram/Sketch:

References: Engineering Graphics by Werick

11

Operation Sheet No -6 Operation /job: - Development of Cone Name: - Muhammad Hafeez Subject: - Engineering Drawing & CAD II (Mech. 223) Technology: Mechanical Objectives: - Learner will be able to Time & Date: 1. Student will be able to drawn the L.S of cone. 2. Student will be able to use the protractor. Introduction, Preparation & Motivation: - The models are shown to the students. Machines/Equipment/ Tools/ Materials: - Drafting Media/ Tools / Helping Aid etc.


1. Draw front & top view of the cone.

2. Draw an arc from O radius is equal to slant height of the cone.

3. Join O at any point on the arc.

4. Find the included angle by the formula.

5. Complete the development of the cone as shown.

Note: Other figure is drawn as per instructions of the teacher.

Application and Try out: Try to calculate the development angle by the formula.




12

Special Assignment: Develop the solids as instructed by the teacher. Drawing/Diagram/Sketch:

References: Engineering Graphics by Luzaddar

13

Operation Sheet No -7 Operation /job: - Development of Cylinder Name: - Muhammad Hafeez Subject: - Engineering Drawing & CAD II (Mech. 223) Technology: Mechanical Objectives: - Learner will be able to Time & Date: 1. Develop right cylinder. 2. Develop truncated and oblique cylinder.. Introduction, Preparation & Motivation: - The models are shown to the students. Machines/Equipment/ Tools/ Materials: - Drafting Media/ Tools / Helping Aid etc.


1. Draw front & top view of the cylinder.

2. Make the development taking height equal to the given cylinder.

3. Take the length equal to circumference of the cylinder.

4. Add Top end and Bottom end of the cylinder.

Note: Other figures are drawn as per instructions of the teacher.

Application and Try out: How circle is divided into equal parts.


1. Draw view of the cylinder vertically inline.

2. Use correct line weight of different lines.

3. Divide the circle carefully.

14

Special Assignment: Develop the given patterns as instructed by the teacher. Drawing/Diagram/Sketch:

References: Drafting Technology

15

Operation Sheet No -8 Operation /job: - Intersection of plane surfaces Name: - Muhammad Hafeez Subject: - Engineering Drawing & CAD II (Mech. 223) Technology: Mechanical Objectives: - Learner will be able to Time & Date: Student can draw and find Intersection of plane surfaces. Introduction, Preparation & Motivation: - The models are shown to the students. Machines/Equipment/ Tools/ Materials: - Drafting Media/ Tools / Helping Aid etc.


1. Draw front & side of ducts accordingly.

2. Draw the projection as shown.

3. Assume 1 on this project at any convenient distance.

4. Take length 1, 2 as per length of the side of square duct.

5. Darken the answer as shown

6. Remove all extra lines.

Application and Try out: How we develop the duct.


1. Draw front & Top vertically inline.

2. Use correct line weight of different lines.

3. Be attentive during work.

4. Draw the projection very carefully.

16


References: Technical Drawing.

17

Operation Sheet No -9 Operation /job: - Intersection of Curved Surfaces Name: - Muhammad Hafeez Subject: - Engineering Drawing & CAD II (Mech. 223) Technology: Mechanical Objectives: - Learner will be able to Time & Date: Student can draw and find Intersection of Curved surfaces. Introduction, Preparation & Motivation: - The models are shown to the students. Machines/Equipment/ Tools/ Materials: - Sheets / Tools / Helping Aid etc.


1. Observe the pipe carefully.

2. Draw front & Top.

3. Divide both cylinders in equal no. of parts.

4. Draw the projection from these points.

5. Where these points are intersect in front view.

6. Join is the required points.

Application and Try out: Student will try to understand the how intersection is find out.


1. Draw front & Top.

2. Divide the cylinder in any no. of equal parts.

3. Use correct line weight.

18


References: Technical Drawing.

19

Operation Sheet No -10 Operation /job: - NUT Name: - Muhammad Hafeez Subject: - Engineering Drawing & CAD II (Mech. 223) Technology: Mechanical Objectives: - Learner will be able to Time & Date: 1. Draw three views of Hex. Nut. 2. Draw three views of Square Nut. Introduction, Preparation & Motivation: - The models are shown to the students. Machines/Equipment/ Tools/ Materials: - Sheets / Tools / Helping Aid etc.


1. Distribute the sheet properly.

2. Calculate the proportion of nut assuming dia.

3. Draw circle as dia A/F and circum scribe Hexagon.

4. Make front view.

5. Draw the front and side face arcs accordingly.

6. Draw root and crest circle in top view and

complete the drawing.

A / F = 1 d + 3 mm H = 0.9 D R = 1.2 D r = 3/8 D Angle = 30o

Application and Try out: Student will try to draw the square Nut.


1. Assuming the nominal dia of Nut.

2. Find the proportions use formulii.


4. Locate centers for front and side face arcs

20


References: Engineering Drawing by Parkin Son.

21

Operation Sheet No -11 Operation /job: - Thread Sections Name: - Muhammad Hafeez Subject: - Engineering Drawing & CAD II (Mech. 223) Technology: Mechanical Objectives: - Learner will be able to Time & Date: 1. Find the different proportions. 2. Draw the different sections. Introduction, Preparation & Motivation: - The models are shown to the students. Machines/Equipment/ Tools/ Materials: - Sheets / Tools / Helping Aid etc.



2. Calculate the proportion assuming dia.

3. Remain threect are drawn as per instruction of instructor.

Application and Try out: Student will try to draw thread section.



2. Use sharp pencils.

3. Transfer proportions carefully.

22


References: Fundamentals of Engineering Drawing.

23

Operation Sheet No -12 Operation /job: - Locking Devices Name: - Muhammad Hafeez Subject: - Engineering Drawing & CAD II (Mech. 223) Technology: Mechanical Objectives: - Learner will be able to Time & Date: 1. Find the different proportions. 2. Draw the locking devices. Introduction, Preparation & Motivation: - The charts and models are shown to the students. Machines/Equipment/ Tools/ Materials: - Sheets / Tools / Helping Aid etc.



2. Work out the proportions.

3. Assume the dia of screw.

4. Draw the sketch given on back side.

Application and Try out: Ask different question about locking devices.





24


References:

25

Operation Sheet No -13 Operation /job: - Rivet Heads Name: - Muhammad Hafeez Subject: - Engineering Drawing & CAD II (Mech. 223) Technology: Mechanical Objectives: - Learner will be able to Time & Date: 1. Calculate the dimensions of Rivet heads. 2. Draw the different Heads. Introduction, Preparation & Motivation: - The charts and models are shown to the students. Machines/Equipment/ Tools/ Materials: - Sheets / Tools / Helping Aid etc.




3. Assume the dia of rivet.

4. Draw the different heads properly.

d = Normal dia w = 1.6 d H = 0.7 d R = 0.8 d

Application and Try out: Ask different question about locking devices.





26


References: Engineering Drawing by Verick

27

Operation Sheet No -14 Operation /job: - LAP Joint Name: - Muhammad Hafeez Subject: - Engineering Drawing & CAD II (Mech. 223) Technology: Mechanical Objectives: - Time & Date: Introduction, Preparation & Motivation: - The charts and models are shown to the students. Machines/Equipment/ Tools/ Materials: - Sheets / Tools / Helping Aid etc.


1. Find the length of each joint.




5. Draw front and top of joint.

6. Place proportion on the joint.

Dia of rivet is = d d = 6 T M.d = 1 1/2 d P = 3 d

Application and Try out: Try to design Lap Joint.


1. Fasten the sheet properly.

2. Use sharp pencil.

3. Use soften eraser.

28


References:

29

Operation Sheet No -15 Operation /job: - BUTT Joint Name: - Muhammad Hafeez Subject: - Engineering Drawing & CAD II (Mech. 223) Technology: Mechanical Objectives: - Find out the proportion. Time & Date: Introduction, Preparation & Motivation: - The charts and models are shown to the students. Machines/Equipment/ Tools/ Materials: - Sheets / Tools / Helping Aid etc.


1. Find the length of each joint.




5. Draw front and top of joint.

6. Place proportion on the joint.

Dia of rivet is = d d = 6 T t = i. in single strap = 1.125 T

ii. in Double strap = 0.685 T Marginal distance = 1 1/2 d P = 3 d

Application and Try out: Try to design Butt Joints.


1. Fasten the sheet properly.

2. Use sharp pencil.

3. Use soften eraser.

30


References: Engineering Drawing by N.D Bhatti

31

Operation Sheet No -16 Operation /job: - Types of Keys Name: - Muhammad Hafeez Subject: - Engineering Drawing & CAD II (Mech. 223) Technology: Mechanical Objectives: - Learner will be able to Time & Date: 1. Find the different proportions of keys. 2. Draw the sketches of keys. Introduction, Preparation & Motivation: - The charts and models are shown to the students. Machines/Equipment/ Tools/ Materials: - Sheets / Tools / Helping Aid etc.

Steps/Procedure/method Key Po

2-5 engineering drawing ii auto cad

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