Lab Practice

16
Fakulti Kejuruteraan Mekanikal dan Pembuatan AMALAN KEJURUTERAAN MEKANIKAL II (BDA 1811) Title : Electro-Pneumatic Practice I Learning Outcomes: Upon completion this task, students should be able to : a) Draw a basic electro-pneumatic circuit, install and test run it to move an actuator. b) Identify and operate a few types of electro-pneumatic components. c) Install the serial and parallel electrical circuits for OR/ AND functions. Task : Design the electro-pneumatic control circuit for the following operations : a) Press switch A to extends a cylinder piston and press switch C to retracts it. b) Press either switch A or B will extend a cylinder piston. Then, it will be automatically retracted when touching a limit switch. c) Press switch A will extends a cylinder piston. It will be retracted if a sensor detect it end while switch B is pressed. *Use a 5/2 way DCV double solenoids. UNIVERSITI TUN HUSSEIN ONN MALAYSIA 86400 Parit Raja, Batu Pahat, Johor Darul Ta’zim.

Transcript of Lab Practice

Page 1: Lab Practice

Fakulti Kejuruteraan Mekanikal dan Pembuatan

AMALAN KEJURUTERAAN MEKANIKAL II (BDA 1811)

Title : Electro-Pneumatic Practice I

Learning Outcomes:

Upon completion this task, students should be able to :

a) Draw a basic electro-pneumatic circuit, install and test run it to move an

actuator.

b) Identify and operate a few types of electro-pneumatic components.

c) Install the serial and parallel electrical circuits for OR/ AND functions.

Task :

Design the electro-pneumatic control circuit for the following operations :

a) Press switch A to extends a cylinder piston and press switch C to retracts it.

b) Press either switch A or B will extend a cylinder piston. Then, it will be

automatically retracted when touching a limit switch.

c) Press switch A will extends a cylinder piston. It will be retracted if a sensor detect

it end while switch B is pressed.

*Use a 5/2 way DCV double solenoids.

UNIVERSITI TUN HUSSEIN ONN MALAYSIA86400 Parit Raja, Batu Pahat, Johor Darul Ta’zim. http://www.uthm.edu.my

Page 2: Lab Practice

Name and sketch the related electro-pneumatic symbols :

a)

b)

c)

Sketch the related Pneumatic and Electrical Circuits :

a)

b)

c)

Page 3: Lab Practice

Fakulti Kejuruteraan Mekanikal dan Pembuatan

AMALAN KEJURUTERAAN MEKANIKAL II (BDA 1811)

Title : Electro-Pneumatic Practice II

Learning Outcomes:

Upon completion this task, students should be able to :

a) Draw, install and test run the memory circuits.

b) Identify and operate a few types of electro-pneumatic components including

relay and its contactors.

Task :

Design an electro-pneumatic control circuits for the following operations :

a) Press switch A to extend a cylinder piston, while it will retract if

switch A is released.

b) Press switch A to extend a cylinder piston, and it will be retracted once

a switch B is pressed.

c) Press switches A and B to extend a cylinder piston. The piston will be

retracted if switch C is pressed or limit switch detect the piston end.

Once a piston move to extend, a green LED will be ON. Then, a red

LED will be ON when the piston reach the maximum extend position.

* Use 5/2 way DCV single solenoid with spring return.

UNIVERSITI TUN HUSSEIN ONN MALAYSIA86400 Parit Raja, Batu Pahat, Johor Darul Ta’zim. http://www.uthm.edu.my

Page 4: Lab Practice

Name and sketch the related pneumatic and electrical component symbols :

a)

b)

c)

Sketch the related Pneumatic and Electrical circuits :

a)

b)

c)

Page 5: Lab Practice

Fakulti Kejuruteraan Mekanikal dan Pembuatan

AMALAN KEJURUTERAAN MEKANIKAL II (BDA 1811)

Title : Electro-Pneumatic Practice III

Learning Outcomes:

Upon completion this task, students should be able to :

a) Draw, install and test run an electro-pneumatic circuits for multiple

cylinders with sequence motion.

Task :

Design an electro-pneumatic control circuits using two pistons for the following

operation :

Press switch A to initiate extend of piston A and switch on a green LED. Fully extend of

piston A will initiate extend of piston B. Piston A will retract to an initial position if

piston B was fully extended. Once piston A was fully retracted, a red LED will be

switching ON while piston B start to retract.

Use two 5/2 way DCV single solenoid with spring return

Use two 5/2 way DCV double solenoid

Write the Sequen Motion :

UNIVERSITI TUN HUSSEIN ONN MALAYSIA86400 Parit Raja, Batu Pahat, Johor Darul Ta’zim. http://www.uthm.edu.my

Page 6: Lab Practice

Draw the Step Displacement Diagram for this operation :

Name and sketch the related pneumatic and electrical sysmbols :

Sketch the Pneumatic & Electrical circuits :

Page 7: Lab Practice

Fakulti Kejuruteraan Mekanikal dan Pembuatan

AMALAN KEJURUTERAAN MEKANIKAL II (BDA 1811)

Title : Electro-Pneumatic Practice IV

Learning Outcomes:

Upon completion this task, students should be able to :

a) Draw, install and test run the electro-pneumatic operation using an electrical

timer dan counter.

Task :

Install and test the following circuits :

a) (i)

Electro-pneumatic circuit with a ‘Time Delay ON’ timer

24V

13 17 S1 T1

14 18

A1 5 seconds

T1 H1 A2

0V

24V

15 17 S1 T1

16 18

A1 5 seconds

T1 H1 A2

0V

UNIVERSITI TUN HUSSEIN ONN MALAYSIA86400 Parit Raja, Batu Pahat, Johor Darul Ta’zim. http://www.uthm.edu.my

Page 8: Lab Practice

(ii)

Electro-pneumatic circuit with a ‘Time Delay OFF’ timer

b)

Electro-pneumatic circuit with an electrical counter

24V

17 17 S2 S1 C1

18 18

A1 R1 5 seconds

C1 H1 A2

R2

0V

Page 9: Lab Practice

Fakulti Kejuruteraan Mekanikal dan Pembuatan

AMALAN KEJURUTERAAN MEKANIKAL II (BDA 1811)

Title : Pneumatic Practice I

Learning Outcomes:

Upon completion this task, students should be able to :

a) Draw a basic pneumatic circuit, install and test run it to move an actuator.

b) Identify and operate a few types of pneumatic components.

c) Install the serial and parallel circuits for OR/ AND functions.

Task :

Design a pneumatic control circuit for the following operations. For each question, name

the related pneumatics components involved.

a) Presses switch A to extend a cylinder piston and press switch B to retract it.

b) Press either switch A or B will extend a cylinder piston. Then, it will be

automatically retracted when touching a limit switch.

c) Press switch A and B will extend a cylinder piston. It will be retracted if switch C

is pressed.

*Use a 5/2 way DCV double pilots.

UNIVERSITI TUN HUSSEIN ONN MALAYSIA86400 Parit Raja, Batu Pahat, Johor Darul Ta’zim. http://www.uthm.edu.my

Page 10: Lab Practice

Fakulti Kejuruteraan Mekanikal dan Pembuatan

AMALAN KEJURUTERAAN MEKANIKAL II (BDA 1811)

Title : Pneumatic Practice II

Learning Outcomes:

Upon completion this task, students should be able to :

a) Use time delay valve to control double acting cylinder.

Task :

To design a pneumatics control system for the purpose of sticking components have to

undergo these operations.

Presses switch A to extend the double acting cylinder. The extension of the cylinder will

allow the two components to be stick together. Cylinder will remain at the extension

condition for 6 seconds to allow the glue to become completely dry before the cylinder

can retract. The control system restart only after the cylinder is totally retracted for 5

seconds.

Design a pneumatic control circuit and name the related pneumatics components

involved for the following operations.

UNIVERSITI TUN HUSSEIN ONN MALAYSIA86400 Parit Raja, Batu Pahat, Johor Darul Ta’zim. http://www.uthm.edu.my

Page 11: Lab Practice

Fakulti Kejuruteraan Mekanikal dan Pembuatan

AMALAN KEJURUTERAAN MEKANIKAL II (BDA 1811)

Title : Pneumatic Practice III

Learning Outcomes:

Upon completion this task, students should be able to :

a) Draw, install and test run a pneumatic circuit for multiple cylinders with

sequence motion.

Task :

Design a pneumatic control circuit using two pistons for the following operation:

Press switch A to initiate extend of piston A. Fully extend of piston A will initiate extend

of piston B. Piston A will retract to an initial position if piston B was fully extended.

Once piston A was fully retracted, piston B will start to retract.

a) Write the sequence motion.

b) Draw the displacement step diagram.

c) Name the related pneumatics components involved.

d) Sketch the pneumatics circuit.

e) Install and test run the system.

Answer the questions in two following conditions.

Use two 5/2 way DCV double pilot.

Use two 5/2 way DCV single pilot with spring return.

UNIVERSITI TUN HUSSEIN ONN MALAYSIA86400 Parit Raja, Batu Pahat, Johor Darul Ta’zim. http://www.uthm.edu.my

Page 12: Lab Practice

Fakulti Kejuruteraan Mekanikal dan Pembuatan

AMALAN KEJURUTERAAN MEKANIKAL II (BDA 1811)

Title : Hydraulics Practise I

Learning Outcomes:

Upon completion this task, students should be able to :

d) Understand a hydraulic control system

e) Draw and install pure hydraulic circuit to control the movement a single

acting cylinder using 4/2 directional control valve

Task :

1) Draw, install and commission a pure hydraulic control circuit to move a double

acting cylinder by pressing a starting lever A or a push button A. Use the following

requirements

a. 1 unit 4/2 way directional control single lever operated spring returned

b. 1 unit pressure relief valve set at 40 bar.

c. the cylinder speed 20cm/sec.

2) Record the gauge pressures at the inlet port and oulet ports of the directional

control valve during the cylinder extending and retracting. Set the system pressure at 20

bar, 25 bar, 30 bar and 35 bar.

Equipments:

a. Pressure gauges

b. Hydraulic trainer

UNIVERSITI TUN HUSSEIN ONN MALAYSIA86400 Parit Raja, Batu Pahat, Johor Darul Ta’zim. http://www.uthm.edu.my

Page 13: Lab Practice

Fakulti Kejuruteraan Mekanikal dan Pembuatan

AMALAN KEJURUTERAAN MEKANIKAL II (BDA 1811)

Title : Hydraulics Practise II

Learning Outcomes:

Upon completion this task, students should be able to :

a) Draw , install and commission a hydraulic circuit to control the movement of

double acting cylinder using 4/3 way directional control valve.

b) Measure the flow rate of hydraulic fluid in the cylinder.

Task :

1) Press the starting switch A of a hydraulic cylinder will move the piston for 10cm,

15cm and 20cm stroke. The piston will return to initial state when the switch is

dispressed.

2) Measure the flow rate of the hydraulic cylinder during extending and rectracting

by replacing the existing cylinder with the measuring flow rate cylinder.

3) Replace the cylinder with a hydraulic motor. Set the motor at 3 different speed.

Equipments:

a. Hydraulic trainer

b. Measuring flow rate cylinder

c. Hydraulic motor

UNIVERSITI TUN HUSSEIN ONN MALAYSIA86400 Parit Raja, Batu Pahat, Johor Darul Ta’zim. http://www.uthm.edu.my

Page 14: Lab Practice

Fakulti Kejuruteraan Mekanikal dan Pembuatan

AMALAN KEJURUTERAAN MEKANIKAL II (BDA 1811)

Title : Electro-hydraulics

Learning Outcomes:

Upon completion this task, students should be able to :

a) Draw , install and commission an electro-hydraulic circuit to control the

movement of a single acting cylinder using 4/2 way directional control

valve.

b) Apply mechanical sensors to electro-hydraulic control system.

Task :

1) Draw, install and commission an electro-hydraulic control circuit to move a double

acting cylinder by pressing a starting switch A OR switch B to move the single

acting cylinder. The cylinder will retract automatically when it reaches the maximum

stroke and the switch C is pressed. Led GREEN and Led RED must be activated

when the piston at the minimum and maximum stroke respectively.

2) Use a 4/2 way directional control valve single solenoid. Set the pump pressure at 20

to 40 bar.

Equipments:

a. Electro-hydraulic trainer.

UNIVERSITI TUN HUSSEIN ONN MALAYSIA86400 Parit Raja, Batu Pahat, Johor Darul Ta’zim. http://www.uthm.edu.my