mechatronicsall experiments

Experiment No 1.

Direct Control of Sien?l Actine Cylinder

Aim: i

A single acting cylinder of 25mm diameter is to clamp a component when a push buttonis pressed. As long as push button is related the clamp is to retract.

Solution:

The control value used for single acting cylinder is the J way value. In this case since the

cylinder is of small capacity, the operation can be directly controlled by a push button X*utdirectional control value with spring return.

Operating the push button the air passes through the valve from part 1 to 2 viathe value isinto the piston chamber of cylinder 1 A. the presser build up and advance the piston rod against

the force of cylinder retum spring. On release of the button, the valve spring retums the I way

valve to its initial position and cylinder retracts. The air retracts from the cylinder via the exhaustport3. Component which are the only one of their type are designed without 2 supplementarynumbers. Since the cylinder is the only working element in the circuit designed as 14.

Result:-

The experiment has been conducted successfully

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Aditya Masur

Note

EXPERIMENT NO.2 STARTS FROM DIS PAGE.!!!!

Aditya Masur

Note

Marked set by Aditya Masur

Experiment No 2.

CIRCUIT USING BISTABLE VALVES SPEED CONTROL OF CYLINDER

Aim:

The piston rod of a double acting cylinder is to extend when a momentary push switch isactuated. The cylinder is to rejmain extended until a second switch is actuated and only if theinitial position until a new start single is given. The speed of the cylinder is to be adjustable inboth direction of travel.

Solution:

Operating the moment any push button switch s, and a single is directly applied at

solenoid coil Y, the J

way double solenoid valve 1.1 switches and the resultant single at part 4

fully extended the piston rod of cylinder 1.0 even if S 1 is released the value i.1 remains in theswitched position until the momentary push button switch 52 is operated. If switch S1 is stillactive the 52 single will not be effective. An unopposed single generated by 52 will return valve1.1 to its initial position and signal from part 2 will reacted until a new signal is applied at Y1 byswitch S 1 . If Y I and Y2 are energized due to both switches being operated, then the doublesolenoid valve with its memory characteristics will remain in the last position attained. This isbistable characteristic of the valve.

Note that in the previous characteristics when using single solenoid valves it has been

necessary to electrically latch the S1 signal to keep the Yl solenoid active for long period. Thisis not necessary here since the double solenoid pneumatic valve remains active due to itsinherent memory characteristics.

In most cases, it is preferable to operate the Y1 andY2 solenoid indirectly through relaycontact. This prevent large from being carried at the switch contact and reduces arcing.

The flow control valves are pilEd to throttle the exhausting air in both direction ofposition travel. Supply air is transfened through of piston travel. Supply air is transferred

through the bypass check valve with each control value given unrestricted supply to the cylinder.Valve 1.01 control the speed of retraction and 1.02 control the extension speed. This is referred

to as exhaust throttling. The flow control valve control the speed of the cylinder in both the

direction and is adjustable. a limit of this circuit is that for same application it is necessary todetermine if this piston rod, has reached the extend of its travel before subsequent action occurs.

The solution to this requirement is to place a limit switch at the fully extended position ofthe piston rod, the contact of witch would be in series with the switch that initiates piston rod

retraction.! Way or i *u, double solenoid valve passes the required memory function.

Normally though the J valve is utilized. The value retain its last switched position until an

opposing signal is received for this rez$on signals created by the push button signaling devices

can be short duration. i

Result:

The circuit has been designed and experiment has been conducted successfully

Experiment No 3nocrble

Aim:

A double acting cylinder is to advance if one of two push button is operated. If the pushbutton is then released, the cylinder is to retract.

Solution:

The (1) and 1(3) of the shuttle value IV are connected to the working connection of thevalue ISI and IS2. Upon operation of the push button, the corresponding valve iSl or IS2 isactuated and a single is generated at the 1 or 1(3) side of the shuttle valve.

The or condition is fulfilled and the single passes through the shuttle valve and is emitted at part2. The single pressure is prevented from escaping via the exhaust of the unachieved valve byclosing the line in the shuttle valve. The single effect the switching of the control element IV2.The piston side of the cylinder is pressurized and piston rod advances.

When the activated push button is released the single pressure is relieved by the valves IS 1 and

IS 2 and the control element is switched back to its initial position. The pressure now buildingupon the piston rod side ensures the retraction of the piston rod.

Result :-


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Aditya Masur

Note

EXPT. 4 STARTS HERE.....

Experiment No 4

Actuation of Two DouEle Actins Cylinder in Sequgnce A*B* A-B-

Aim:

Two cylinders are used to transfer part from amagazine on to a chute. When a push

button is pressed, the first cylinder extends, pushing the part from the magazine and position. Ifin preparation for transfer by the second cylinder on the out feed chute. Once the part istransferred. The first cylinder retracts followed by the second.

Solution:

Roller lever values from the with idle return are to be used as limit switches to defect the

return and advance position of the piston rod the manual single input is effected via a | *ayvalve.

In the initial position, both cylinders are in the retracted state, the limit switches 25 I and 152are actuated.

The start condition for a cycle is that the limit switch 25l and push button @Sl must be

actuated, the motion cycle can be determined from the displacement. Step diagram and is sub

divided into the following step.

Step l: 1Sl and lS2 actuated

. Step 2:l53 actuated

Step 3:252 actuated

Step 4:1 52 actuated

Step 5:2Sl actuated

Result :-

Cylinder lA advances

Cylinder 2,A. advances

Cylinder lA retracts.

Cylinder 2,A. retracts.

Initial position


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Aditya Masur

Note

EXPT. NO. 5 STARTS HERE

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Experiment No 5

Aim:

Two cylinders are used to transfer part form amagazine onto a chute. When a push

button is pressed, cylinder 1.0 extends, pushing the part form the magazine and position it inpreparation for transfer by cylinder 2.0 onto the out feed chute. Once the part is transferred, the

first cylinder is to be adjustable confirmation of all extended and related position is required.

Solution:

Control of the sequence of action for this task depends on need switches. The start

condition for the control is that the last action in the operating sequence has accrued, that is

cylinder 2.0 is retracted and the start button is pressed. Step in the operating sequence are shown

on the displacement step diagram. To define the placement of switches that control the sequence

of action, two factors should be considered.

The current action

The desired action.

This can be represented by

ACTION

2.0 retracts

S3 pressed

52 actuated

54 actuated

S1 actuated

REACTION

s2 actuated

1.0 extends

2.0 extends

1.0 extends

2.0 extends

Result :-


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Experiment No 6

Actuation of Sinele Acting Cylinder (Hydraulic cvlinder)

Aim:

Actuation of a single hydraulic cylinder acting cylinder.

Solution:

The circuit diagram describes the functional structure of the hydraulic system.

The power supply section of the system with filter (0Zl) pressure relief value (022),pump(0Pl) and electric motor (0Ml) is depicted in the lower part of the circuit diagram shown for the

hydraulic device of the circuit diagram shown for the hydraulic device of the tempering services.

The power control section with non-return value (1Vl) the J way value (1V3) with the hand

level for single input form the "system person" interface.

Like the drive section, the power control section is assigned to the power section. inhydraulic devices, the drive section consist of the single acting cylinder 1A.

Result :-


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Experiment No 7

AqTUATION OF HYDRAULIC DOUBLE, ACTING CYLINDER

^f im:

Actuation of a Double Acting hydraulic Cylinder.

Solution:

The above section of a hydraulic system is the part of the system which execute the

various working movement of a machine or manufacturing system. The energy obtains in the

hydraulic of forces (e.g. Clamping process). This is achieved using following components.

Cylinder

Motor

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Experiment No 8

ADDITION OF TWO 8 BIT NUMBER

Aim:

Addition of two 8 bit using 8085 microprocessor numbers.

Program me

ADDRESS HEX CODE MNEMONICS OPERAND

c200 21 LXl.H

c201 00

c202 c0c203 7E MOV A,M

c204 23 INX H

c205 86 M

c206 23 INX H

c207 77 MOV M,A

c208 76 HLT

Result:

Addition of two 8 bit numbers was performed successfully using 8085 microprocessor

Experiment No 9

SUBTRACTION OF TWO 8 BIT NUMBER

Aim:

Subtraction of two 8 bit numbers.

programme

ADDRESS HEX CODE MNEMONICS OPERAND

c200 2T H

c201 0

c202 c0c203 7E MOV A,Mc204 23 INX H

c205 96 SUB M

c206 23 INX H

c207 77 MOV M,A

c208 76 HLT

Result:

{naaitioh of two 8 bit numbers was performed successfully using 8085 microprocessor\*-." "!vt:l Xary*,;5^

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