pipe clamp pressing mc 2013
DESCRIPTION
pipe clamp pressing machine project reportTRANSCRIPT
HYDRAULICALLY OPERATED PIPE CLAMP PRESSING DEVICE
Submitted in the partial fulfillment of the requirement for the award of
“DIPLOMA IN MECHANICAL ENGINEERING ”
SUBMITTED BY:
1. G.K. MANIGANDAN 4. J. DHANAJEYAN 2. B. KARTHIKEYAN 5. D. DURAIVEL 3. P. BALASUBRAMANI 6. L. PRABHU
Under guidance of
Mr. V.K. RAJENDRAN,M.E.
APRIL 2013.
DEPARTMENT OF MECHANICAL ENGINEERING
A M K TECHNOLOGICAL POLYTECHNIC COLLEGECHEM BARAMBAKKAM, CHENNAI – 602 103
A M K TECHNOLOGICAL POLYTECHNIC COLLEGECHEM BARAMBAKKAM, CHENNAI – 602 103
BONAFIDE CERTIFICATE
This is to certify that this Project work on
“HYDRAULICALLY OPERATED PIPE CLAMP PRESSING DEVICE”
submitted by …………………… ……………. Reg. No. ……………
in partial fulfillment for the award of
DIPLOMA IN MECHANICAL ENGINEERING
This is the bonafide record of work carried out by him under our supervision
during the year 2013
Submitted for the Viva-voce exam held on ……………..
HEAD OF THE DEPARTMENT PROJECT GUIDE
INTERNAL EXAMINER EXTERNAL EXAMINER
ACKNOWLEDGEMENT
ACKNOWLEDGEMENT
At the outset, we would like to emphasize our sincere thanks to the
Principal Mr. R. J. KUMAR, B.E., M.E., MISTE., Ph.D., encouragement
and valuable advice.
we thank our Esquired Head of Department Mr R. RAJKUMAR,
A.M.I.E, M.E., for presenting his felicitations on us.
We are grateful on our Entourages Mr. V.K.RAJENDRAN, M.E.,
for guiding in various aspects of the project making it a grand success.
We also owe our sincere thanks to all staff members of the
Mechanical Engineering Department.
Ultimately, we extend our thanks to all who had rendered their co-
operation for the success of the project.
CONTENTS
CONTENTS
Chapter No. TITLE
1. INTRODUCTION
2. SYNOPSIS
3. CONSTRUCTION
4. WORKING PRINCIPLE
5. DESCRIPTION OF HYDRAULIC JACK
6. HYDRAULIC CIRCUIT DIAGRAM
7. MECHANICAL SPARE PARTS DETAILS
8. ADVANTAGES
9. SAFTY,CARE AND MAINTENANCE
10. FINISHING AND PAINTING
11. COST ESTIMATION
12. CONCLUSION
13. BIBILOGRAPHY
14. PHOTO VIEW
INTRODUCTION
INTRODUCTION
This is a self – assessment test on the part of the students to assess his
competency in creativity.
During the course of study, the student is put on a sound theoretical
foundation of various mechanical engineering subjects and of course, to a
satisfactory extent. Opportunities are made available to him to work on
different kinds of machines, so that he is exposed to various kinds of
manufacturing process.
As a students learn more and more his hold on production technology
becomes stronger. He attains a stage of perfection, when he himself is able
to design and fabricate a device.
This is the project work. That is the testimony for the strenuous
training, which the student had in the institute. This assures that he is no
more a student, he is an engineer.
This report discuses the necessity of the project and various aspects of
planning , design, selection of materials, fabrication, erection, estimation and
testing.
SYNOPSIS
SYNOPSIS
A hydraulic fluid power system is defined as a means of
power transmission in which relatively incompressible fluid is used as the
power transmitting media. The primary purpose of hydraulic system is the
transfer of energy from one location to another location and this energy into
useful work.
In this project of the fabricated model of HYDRAULIC PIPE CLAMP
PREESING MACHINE is used to bend the pipe clamp and it will describe
the working principles as well as hydraulic machines application and its
advantages. Efforts have been taken to show the path of hydraulic fluid as it
is applied and released. The Hydraulic system pressure can be generated in
the form of any physical action which result a compression over the
Hydraulic system or pneumatic pressure which is developed in the form of
air compressing externally can be applied to activate Hydraulic system.
There is a constant relation between pressure density, and volume,
According to Bernoulli’s equation. Liquids can be heated by applying high
pressure without any external heat energy supplied to them. So the specific
heat of any liquid system which is used in the hydraulic machinery must be
more than enough to with stand the pressure applied over them also viscosity
must be high enough for smooth conversion of external pressure applied
over them to hydraulic pressure.
CONSTRUCTION
CONSTRUCTION
This unit consists of
a) M.S. Fabricated stand
b) Hydraulic jack with Pressing die set
c) Handle
A ) M.S .FABRICATED STAND ;
This stand is used to hold the hydraulic jack with pressing tool and tool
guide base. The work to be pressed is placed between the male and female
die set which are mounted above jack ..
HYDRAULIC JACK
A Hydraulic Jack is a device using Hydraulic Power in its simplest possible
shape shown in figure and consists of five fundamental components.
1. pump
2. reservoir
3. cylinder
4. suction valve and
5. delivery valve
WORKING PRINCPLE
WORKING PRINCPLE
This device is worked by the principle of hydraulic lifting system..
This is operated by hydraulic power without use of man power. This unit
consists of
d) M.S. Fabricated stand
e) Hydraulic jack with pressing tool
f) Handle
The M.S. stand is used to hold the hydraulic jack with pressing tool. The
work to be pressed is placed between the die set. The male die is mounted at
top of the frame and the female die is mounted below the male die. The
female die moves up and down by the action of hydraulic jack.when the
handled is operated , the piston in the jack moved upward along with the
female die and press the work.finally the male part of the die coincide with
the female die to make the pipe clamp.
To lower the piston in the jack , the drain valve is unscrewed. The
pressurized oil under the piston returns to reservoir . hence the piston along
with the female die lowered to take the pipe clamp..
WORKING OF HYDRAULIC JACK;
A Hydraulic Jack or for that matter any device using Hydraulic Power
in its simplest possible shape consists of five fundamental components.
A. The Hydraulic Reservoir storing the Hydraulic Oil (Oil is used as the
medium to transmit force and motion-such fluids are called Hydraulic
Oils) should be thoroughly clean, whether integrally built-in or used
as a separate tank.
Pump, either of the integral or the remote control type, comprises of highly
precision engineered pump plunger, cylinder, suction and delivery valves,
safety valves with conical or steel balls matched with micron tolerances.
Very often O Rings and special seals are used, made from specially treated
leather or synthetic nitrile rubber or Teflon or other modern substitutes for
greater resistance to wear and sealing ower
It is imperative that these must function at peak efficiency by regular
cleaning and flushing of foreign particles which enter into the
hydraulic system and may clog the delicate valves, damage the seals
and affect the functioning of other elements in the hydraulic circuit.
B. A pump by itself would be useless without a system of VALVES to
govern the flow of hydraulic oil to perform the desired function.
C. The transmission of hydraulic oil from the reservoir by the pump
through the valves to Ram & Cylinder which converts the hydraulic
pressure into a mechanical force is by means of a Hydraulic Circuit
which is nothing but a network of passages in hydraulic systems.
These passages are formed with the help of Steel Tubes, Flexible
Hydraulic Hoses or through internal holes or cavities in metal blocks.
It is of the utmost importance that the circuit is always leak proof as
well as free from obstacles. Each joint or coupling must be securely
tightened or replaced forthwith. No air lock or foreign particles
should be allowed to interrupt or block the free flow of hydraulic oil.
D. All hydraulic cylinders consists of two basic elements – the outer
housing is called the Cylinder body and the inner sliding elements is
called the Ram (or piston or plunger) which actually converts the
hydraulic pressure into mechanical force and transmits to the desired
point for performing the function. The movement of Ram is always in
line with cylinder under pressure.
Hydraulic Oil is pumped into the cylinder and as more and more oil is
forced into the cylinder pressure builds up and when enough oil is
forced into the cylinder the resultant pressure will cause the ram,
plunger or piston to move and consequently lift, press, push, pull or
bend any object any object as the case may be.
The Ram and Cylinder are also precision engineered and mostly fitted
with high quality seals which give it the necessary compression
holding capacity and prevent leakages.
The five fundamental components already illustrated and described
combined together perform the specified job by a synchronous follow
through of their individual functions.
1. The release valve is closed tightly to ensure flow of oil from the pump
to the cylinder only.
2. As soon as the pump is operated oil is sucked in from the reservoir.
As the Pump Plunger is raised up oil passes from the reservoir into
the pump cylinder with the Suction Valve opening up to allow oil from
reservoir to enter into pump cylinder.
3. When the Pump Plunger is pressed down the Delivery Valve opens up
to allow the passage of oil from the pump into the cylinder, at the
same time the suction valve automatically closes to prevent oil
returning to the reservoir.
4. By repeating the above two operations successively more and more oil
is pumped into the cylinder resulting in the generation of pressure by
the action of the load being lifted.
5. When the load is desired to be lowered the pressure within the
cylinder is released by operating the Release Valve. The oil flows
back into the reservoir shown in the diagram in page 1.
6. Due to neglect or other causes pressure within the system may
continue to increase beyond the predetermined safe working limit. To
prevent damage to the system a safety relief valve is located between
the cylinder and the reservoir excessive pressure by the opening up of
the safety valve and discharge of oil into the reservoir (very often the
safety overload preventive relief valve is located in between the
reservoir and the pump – the pump automatically cuts off without
delivery of oil to the cylinder due to generation of excessive pressure
within the pump).
The simple diagram shown in page 1 shall help to understand the
working of the hydraulic system in a more graphic manner.
HYDRAULIC CIRCUIT
DIAGRAM
MECHANICAL SPARE
PARTS DIAGRAM
ADVANTAGES
ADVANTAGES
1. It eliminates complicated parts like hydraulic cylinder pipe
connections and pressure tubes.
2. Fluid Power transmitted through port so high efficient.
3. Control of system is easier
4. Maintenance cost is less
5. Can be achieved up to two ton force.
In this Hydraulic system lubricating system not necessary so that wear and
tear very low.
1. Single person is enough to operate this efficiently to make the pipe
clamp.
2. Easy and efficient handling of this unit without wastage or damage to
any other parts.
3. Increase the jack life.
4. Least maintenance of the equipment.
5. Need not require any individual work place.
6. Can be worked in the work spot.
7. Suited for making pipe clamp as well as bending.
SAFTY,CARE AND
MAINTENANCE
BASIC SAFETY RULES FOR HYDRAULIC JACKS;
The nature of lifting operation should determine the choice of jacking
equipment-integral or remote control pump type jacks. Capacity and the
hydraulic lifting stroke are vital aspects to be carefully determined before
selection.
Lifting any load calls for precise and safe jacking points. Jack should be
centrally loaded eccentric loading causes dangerous accidents and damages
beyond repair.
The world over prudent safety minded operators observe the flowing basic
safety rules :
A. To overpower the load, whether one or a dozen cylinders are used to lift
the load, the cylinder lifting capacity should be two times the weight of
the load. This allows for a reduction in the oil pressure, prevents strain
and possible break-down of the cylinder.
B. To balance the load, for large, heavy and uneven loads, it is
recommended dividing the load evenly between a number of cylinders.
These cylinders should be placed beneath the load at points providing the
best support, balance and stability. For example, to lift a 200-tonns load,
the necessary 400-tonnes capacity could be handled by four 100-tonnes
cylinders.
C. Never raise the hydraulic ram beyond the specified stroke (lift).
D. Never drop (shock) load on the hydraulic ram.
E. Never go under a load supported by hydraulic ram only.
F. Never extend the hydraulic ram by means other than the pump.
G. Never use hydraulic equipment with observed leakages.
H. Use safety lock nut type jacks for supporting load on jack for long
periods.
I. Use steel plates or heavy wooden sleepers where ground surface is soft
and yielding
J. Do not disturb the factory preset internal safety valve provided for
preventing overloading.
K. Do not load more than 50% of the rated head capacity on the toe (claw)
of toe lifting jacks.
Positioning the Jack
Jack should be centrally loaded, jack base and upper jacking point must be
in level.
Raising the Jack
Turn the release valve in clockwise direction till tight, use end of slotted
operating handles. Start pumping with a regular handle movement. Make
only few fast and rapid download delivery strokes, Jack handle slightly
downward, in case the delivery does not close instantly. Check that the
saddles rests firmly against the Jacking point.
Lowering the Jack
Turn the release valve SLOWLY anticlockwise.
Jack Storage
Retract ram completely, close oil filler, keep the Jack away in a safe clean
place.
Caution
Do not use the Jack beyond rated capacity and lift mentioned on the name
plate.
Making Jack ready for use
VANJAX Hydraulic Jacks are supplied ready for use. Unlock the release
valve half a turn and operate the pump few times to flush the hydraulic unit
free from airlocking.
DO’S AND DON’TS
Do’s Don’ts
Air venting is an important
precaution for the successful
Under no circumstances the
equipment should be used beyond
performance of any hydraulic jack
or hydraulically operated device,
equipment or system.
rated capacity or rated stroke. It is
in the interest of the user and for the
protection of his costly equipment to
ensure correct selection of the
capacity and restricting the stroke
within the rated stroke length.
All couplings and other fasteners
should be properly tightened.
Do not forcibly hammer fit
accessories if falling short by a
fraction of the required length or
spread. Use the next higher size
equipment. Abuse of accessories
and attachments are hazardous both
for the equipment and the personnel.
At all times the entire equipments
should be kept free from dust
through regular systematic cleaning.
Do not expose the equipment to
areas of excessive heat or where
dirt, dust and heavily laden fumes /
smoke are prevalent. If the
equipment is used in such areas it is
absolutely essential to service it at
once.
Check oil level each time before
use.
Do not refill without a reliable
strainer
Every time the hydraulic hose is
attached to the pump and the ram
cylinder assembly unit, it should be
thoroughly flushed.
Do not use brake fluid as refill.
Release valve to be properly
tightened by turning it in clock-wise
direction when applying load. For
releasing pressure open release
valve gradually by turning it in anti-
clockwise direction.
Do not hammer to open guide nuts.
Open by guide nut spanner.
The equipment must be centrally loaded. The pressure screw in a hydraulic puller should be absolutely perpendicular to the axis of the load.
Do not apply extra force to close the release valve. Normal hand pressure is enough.
As refill we recommend IOC Code No. Servo System 32 and 46, HPC Hydrol 0232 or any other equivalent.
Do not use fluffy cloth or cotton waste for cleaning cylinder ram, valve, pump and oil tank.
VANJAX cannot be held responsible for damage or injury caused by unsafe
use, maintenance or application of its products.
Trouble Shooting Chart for VANJAX Hydraulic Jacks and
Hydraulically Operated Equipment.
Trouble Probable cause Remedy
Jack will not close immediately
Air under Cylinder or Oil Tank
Open the oil filler plug/air breathe or open the release key and operate the pump handle few time to breath out the air the close the release valve.
Pump handle stroke partly effective
Air in pump chamber
Open release valve. Operate the pump handle rapidly several times. Close release valve.
Pump handle raise without efforts
Sticky suction and delivery valve
Remove pump, clean valve unit and reset valve unit Open release valve and operate the pump rapidly a few times.
Jack will not rise to full height
Lack of oil or leakage
Refill with fresh oil. Check for leakage.
Jack raises and falls during each stroke
Leaky suction & delivery valve
Tighten the pump and then operate. If defect still persists the remove valve body, clean properly replace the defective parts, make a fresh seat and assemble accordingly.
Jack will not raise up to specified lift
Or
Jack will not hold the rated load.
a) Pump is not properly tightened
b) Release key is not completely closed
c) Suction and delivery valve are defective.
a) Tighten the pump properly.
b) Close release key completely
c) Check inbuilt valve capsule ball seating accordingly.
PAINTING AND FINISHING
FINISHING AND PAINTING
JOB PREPARATION
Before welding, remove any bend in the L angle with the sludge
hammer on the anvil block. Then it is cut to the required length with the
hacksaw blade and fabricated to required dimensional shape with arc
welding.
FINISHING OPERATION BEFORE PAINTING
After welding, any slag on the welded area is removed with the
chipping hammer and cleaned with the metal wire brush. Then all the
surfaces are rubbed with the emery sheet.
Metal primer is applied on the surfaces with the brush. After drying the
metal primer, the second coating is applied with the paint.
COST ESTIMATION
COST ESTIMATION
1.Work holding support and pressing tool 1800,00
2. hydraulic jack 2800.00
3 . M.S. Fabricated housing unit 600.00
5. Painting cost 200.00
6. transport cost 200.00
TOTAL COST 5600.00
CONCLUSION
CONCLUSION
We make this project entirely different from other projects. Since
concepts involved in our project is entirely different that a single unit is used
to various purposes, which is not developed by any of other team members.
By doing this project we gained the knowledge of fabrication work
and how the welding is doing and material selection for particular
components etc.,
It is concluded that any fabrication work can be done with the help of
welding.
We have successfully completed the project work on using welding
work at our Institute.
Once again we express our sincere thanks to our staff members.
BIBLIOGRAPHY
BIBLIOGRAPHY
1. WORKSHOP TECHNOLOGY -HAJRA CHOWDRY
2. PRODUCTION TECHNOLOGY -R.S. KHURMI
3. MACHINE SHOP TECHNOLOGY -S.S.MANIAN
4. JIG AND FIXTURE DESIGN - R.K.JAIN
PHOTO VIEW
PHOTO VIEW