project synopsis

MIT COLLEGE OF ENGINEERING AND MANAGEMENT

DEPARTMENT OF MECHANICAL ENGINEERING

PROJECT SYNOPSIS ON

MULTIPURPOSE MACHINE

SUBMITTED BY:

MUNISH KUMAR (ME-1084)

GAURAV SHARMA (ME-1085)

DIXIT SAHOTRA (ME-1086)

ASHISH BANYAL (ME-1122)

MOHIT KUMAR (ME-1123)

SUBMITTED TO:

Er. NEERAJ KUMAR

(H.O.D MECHANICAL)


Table of Contents

INTRODUCTION.................................................................................................................................2

MECHANISMS....................................................................................................................................2

SCHEMATIC DIAGRAM OF PROJECT............................................................................................4

BLOCK DIAGRAM.............................................................................................................................6

MATERIAL REQUIRED AND COST.................................................................................................8

BIBLIOGRAPHY.................................................................................................................................9

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INTRODUCTION

To design and develop, implement MULTIPURPOSE MACHINE is our goal. This project further utilized to reduces time and perform multiple works at a time.

Here, in this project we will use inversions of slider crank chain. These inversions are used to obtain, reciprocating motion from rotary motion. The reciprocating motion transmits motion to blade through power transmission system i.e. through pulleys, belt etc. The electric motor is used to provide power, torque and speed. This provided power and torque is transmitted through the pulleys, belts and single slider crank also to blade. Controlled rpm is obtained from using pulleys. And also the power is transmitted to drilling and shaping machine

This project can directly use for its application i.e. drilling, shaping, cutting material in minimum time. By this project we will reduce 50% production time.

OPERATION TO BE PERFORM BY THE MACHINE

1. Drilling2. Shaping3. Cutting

Shaping: The shaping machine is used to machine flat metal surfaces especially where

a large amount of metal has to be removed. As the disc rotates the top of the machine

moves forwards and backwards, pushing a cutting tool. The cutting tool removes the metal from work which is carefully bolted down

Drilling: Drilling is the operation of producing circular hole in the work-piece by

using a rotating cutter called DRILL. It is the simplest and accurate machine used in

production shop. The work piece is held stationary ie. Clamped in position and the drill rotates to make a hole

CUTTING: A hacksaw is a fine-tooth saw with a blade held under tension in a frame,

used for cutting materials such as metal or plastics. Hand-held hacksaws consist of a

metal arch with a handle, usually a pistol grip, with pins for attaching a narrow disposable blade.

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MECHANISMS THAT CAN BE USED :

1. Whitworth quick return mechanism : The Whitworth quick return mechanism converts rotary motion into reciprocating motion, but unlike the crank and slider, the forward reciprocating motion is slower rate than the return stroke. This is why it is called quick return mechanism. At the bottom of the drive arm, the peg only has to move through a few degrees to sweep the arm from left to right, but it takes the remainder of the revolution to bring the arm back. This mechanism is most commonly seen as the drive for a shaping machine.

2. The Scotch yoke mechanism : (also known as slotted link mechanism is a reciprocating motion mechanism, converting the linear motion of a slider into rotational motion, or vice versa. The piston or other reciprocating part is directly coupled to a sliding yoke with a slot that engages a pin on the rotating part. The

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location of the piston versus time is a sine wave of constant amplitude, and constant frequency given a constant rotational speed.

This setup is most commonly used in control valve actuators in high-pressure oil and gas pipelines. Although not a common metalworking machine nowadays, crude shapers can use Scotch yokes. Almost all those use a Whitworth linkage, which gives a slow speed forward cutting stroke and a faster return.

Scotch yoke mechanism

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SCHEMATIC DIAGRAM OF PROJECT

WORKING:

when power is supplied to the motor it will rotate, a pulley attached to it also rotates. The power from the pulley is transferred to another pulley using v-belt. The second pulley contain a shaft which when rotated made the bevel gear to rotate. The bevel gear will make the drill starts rotating and is now ready to use. The shaft from the bevel gear is linked to the mechanism stated above and it will make the crank rotate. This rotation will make the ram to reciprocate.

The forward motion is slow and the return motion is fast. So we will attach the hacksaw to front and single point tool to the return stroke.

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BLOCK DIAGRAMA simple block diagram of the overall project design is shown in fig. below:

Power from electrical motor

Pulley no. 1

Through v-belt

Pulley no. 2

Through shaft to bevel gears

Drilling chuck

From bevel gears shaft to Inversions of single slider crank

Conversion of rotary motion to reciprocating motion

To hacksaw blade and shaper

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Advantages

1. Increases production rate.2. Reduces production time.3. Operating principle is simple and easy to understand.4. It is economical machine.5. Less maintenance.6. Unskilled worker also operate.7. Less space required.8. Multiple operations on single machine

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MATERIAL REQUIRED AND COST:

Serial no. Material Units Cost1. Electric motor 1 1500

2. Pulleys 2 500

3. Bearings 4 1000

4. V-belts 1 500

5. Gear and pinion 500

6. Slider crank mechanism 1 Not known

7. Cutter 1 300

8. Cooling arrangement 1000

9. Shaft 2 500

10. Wire 200

11. Body, Machining, Support System, tools

2000

12. Extra expenses 3000

Total 11000

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BIBLIOGRAPHY

Theory of machines (R.S Khurmi) Production technology Workshop technology (R. S Khurmi) http://www.mekanizmalar.com/

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project synopsis

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