ejercicios y soluciones de electroneumatica 15

Innovation Team Approved Course Resources EP211 Introduction to Electropneumatics Solutions

PM - Training and Consulting

Description: Innovation Team Approved Course Resources EP211 Exercises & Solutions Edition: v1.0 (11/03) Editors: Martin Williams, David Hoey Resources: Festo Companies, Product Management Training and Consulting

Festo Didactic GmbH & Co. KG, 73770 Denkendorf/Germany, 2003 Internet: www.festo.com/didactic E-mail: [email protected]

The copying, distribution and utilization of this document as well as the communication of its contents to others without expressed authorization is prohibited. Offenders will be held liable for the payment of damages. All rights reserved, in particular the right to carry out patent, utility model or ornamental design registration.

2

Festo Didactic GmbH & Co. KG Innovation Team Approved Course Resources EP211 Ex. & Sol.

Contents

EP211 Introduction to Electropneumatics Exercises & Solutions Exercise 1 ___________________________________________________________ 4 Exercise 2 ___________________________________________________________ 7 Exercise 3 __________________________________________________________ 10 Exercise 4 __________________________________________________________ 13 Exercise 5 __________________________________________________________ 16 Exercise 6 __________________________________________________________ 19 Exercise 7 __________________________________________________________ 22 Exercise 8 __________________________________________________________ 25 Exercise 9 __________________________________________________________ 28 Exercise 10__________________________________________________________ 31 Exercise 11__________________________________________________________ 34 Exercise 12__________________________________________________________ 37 Exercise 13__________________________________________________________ 40 Exercise 14__________________________________________________________ 43 Exercise 15__________________________________________________________ 46


3

Exercise 1

Exercise 1

Indirect actuation of a single-acting cylinder

Problem Description

By using a turning device, parts are to be transported on a conveyor track facing the right direction. By pressing the push button switch, parts are turned by the piston rod of a cylinder and proceed, correctly positioned. When the push button is released the piston rod is returned to its start position. Use single solenoid directional control valves.

4


P111

Solution: Exercise 1

Pneumatic Circuit Diagram

Electrical Circuit Diagram


5

Exercise 1

Exercise 2

Indirect actuation of a double-acting cylinder

Problem Description

Using a lid lifting device, snap-on lids are to be pressed onto plastic buckets. By pressing a push button switch, the domed press is advanced and the snap-on lid is pressed on. When the push button switch is released, the domed press is returned to its start position. Use single solenoid directional control valves.

6


Exercise 2





7

Exercise 3

Exercise 3

Indirect actuation with AND function

Problem Description

Using a cutting device, sheets of paper are to be cut to size. By pressing two push button switches, the cutting blade is advanced and the sheet of paper is cut. After releasing one push button switch, the cutting blade is returned to its start position. Use single solenoid directional control valves

1A

8


Exercise 2





9

Exercise 3

Exercise 4

Indirect actuation with OR function

Problem Description

Using a tipping device, liquid is to be poured from a vat. By pressing either one of two push button switches, the vat is tilted and the liquid is emptied. After releasing the push button switch, the vat is returned to the upright position. Use single solenoid directional control valves.

1A

10


Exercise 4





11

Exercise 5

Exercise 5

Indirect actuation from two different positions

Problem Description

Bulk material is to be emptied from a hopper. By pressing a push button switch, the hopper is opened and the bulk material is emptied out. By pressing another push button switch, the hopper is closed again. Use double solenoid directional control valves.

1A

12


Exercise 4



1Y1

1Y2

1Y1

1Y2



13

Exercise 5

Exercise 6

Indirect actuation with reversal by means of an electrical limit switch

Problem Description

Parts are to be pushed away from a multi-track gravity feed magazine into a clamping device. By pressing a push button switch, the parts are pushed out of the multi-track gravity feed magazine by a slide. After the slide has reached the forward end position, it is returned to its start position. Use double solenoid directional control valves.

14


Exercise 6





15

Exercise 7

Exercise 7

Indirect actuation with oscillating motion of the piston rod

Problem Description

Using a rotary indexing table, plastic containers are to be separated in linear sequence. By pressing a detent push button switch, the oscillating piston rod of a cylinder drives the rotary table in sequence via a pawl. When the push button is pressed again, the drive is switched off. Use double solenoid directional control valves.

16


Exercise 7




+24V

S3

S1

S2

K1

K3

K2

K1 0V

K2

K3

Y1

Y2


17

Exercise 8

Exercise 8

Electrical latching circuit

Problem Description

Using a sliding table, a plank of wood is to be pushed under a belt sanding machine. By pressing a push button switch, the sliding table with the plank of wood positioned on it is pushed under the belt sanding machine. By pressing another push button switch, the sliding table is returned to its start position. Use single solenoid directional control valves.

18


Exercise 8





19

Exercise 9

Exercise 9

Oscillating motion of the piston rod with monitoring of the end position by means of magnetic proximity switches

Problem Description

Using a diverting device, parts are to be removed from one conveyor track onto another in linear sequence. By pressing a push button switch, the oscillating piston rod of a cylinder pushes the turntable via a pawl in stepped sequence. The parts are diverted and transported onwards in the opposite direction. By pressing another push button switch, the drive unit is switched off. Use double solenoid directional control valves.

20


Exercise 9





21

Exercise 10

Exercise 10

Pressure dependent reversal

Problem Description

Parts are to be stamped with a stamping device. By pressing two push button switches, the die is pushed down and the part is stamped. When the stamping pressure has been achieved, the die is returned to its start position. Use double solenoid directional control valves.

22


Exercise 10





23

Exercise 11

Exercise 11

Pressure dependent reversal with monitoring of the end position by means of magnetic proximity switches

Problem Description

Using a hot pressing die, packing material is to be sealed by application of heat and pressure. By pressing a push button switch, the heating rail is advanced and the packaging material is heated along the adhesive strip. After the adhesion pressure has been reached, the heating rail is returned to its start position. Use double solenoid directional control valves.

24


Exercise 11





25

Exercise 12

Exercise 12

Co-ordinated motion control with auxiliary conditions

Problem Description

Using a transfer station blocks are to be transferred from a magazine to a processing station. The blocks are pushed out of the magazine by cylinder 1A and transferred to the processing station by cylinder 2A. The piston rod of cylinder 2A may only return when the piston rod of cylinder 1A has reached the retracted end position. The magazine is monitored by means of a limit switch. If there are no more blocks in the magazine, it is not possible to start the cycle. This is indicated by means of an audible signal. The control is to be operated in single cycle. Use a single solenoid directional control valve for cylinder 1A and a double solenoid directional control valve for cylinder 2A. A detent push button switch is used to replace the limit switch S3 on the input plate.

1A

2A

26


Exercise 12


Pneumatic Circuit Diagram1B11A

1B22A

2S1

2S2

4

2

4

2

1Y5 1 3

2Y15 1 3

2Y2

0Z2

0Z1

1 3

2

Electrical Circuit Diagram24 V4,5 A S132 14 13 13 BN BN 23 13 13 1 13 2 13 3 4 5 6 7 8 9 10

S214 1

K114

1B1BU BK

K1BK 24

K214

K314

1B2BU 4 A1

2S12

2S22 A1 4 A1

H1

K1A2

K2A2

K3A2

1Y

2Y1

2Y2

3 8

9

10


27

Exercise 13

Exercise 13

Lifting device for boxes

Problem Description

Boxes arrive on a roller conveyor and are lifted by Cylinder 1A. Cylinder 2A ejects the boxes onto the second roller conveyor. Cylinder 1A retracts. Cylinder 2A retracts when Cylinder 1A has reached its initial starting position. Use single solenoid directional control valves.

28


Exercise 13



A0

A1

B0

B1

4(A)Y1

2(B)Y2

4(A)

2(B)

5(R)

3(S) 1(P)

5(R)

3(S) 1(P)

Electrical Circuit Diagram+24V

13S1

14K1 A1

34 14K2 B1 K3

34K2

+24V

14A0 K4

14B0

K1

14

11

31

31

11

11

11

12K5 K1

24K2

24K3

24K4

24K3

32K4

32 31

11

21

21

21

21

31

A1K1 0V K2

A1K3

A1K4

A1K5

A1Y1 Y2

A2

A2

A2

A2

A2

A+

B+

B-

A-

Cycle End

0V


29

Exercise 14

Exercise 14

Transfer device for boxes

Problem Description

Two cylinders are used to transfer parts from a magazine onto a chute. When a push button is pressed, cylinder A extends, pushing the part from the magazine and positions it in preparation for transfer by cylinder B onto the outfeed chute. Once the part is transferred, the second cylinder retracts followed by the first.

A

B

30


Exercise 14



A0

A1

B0

B1

4(A)Y1

2(B)Y2

4(A)

2(

5(R)

3(S) 1(P)

5(R)

3( 1(

Electrical Circuit Diagram+24V

13S1

14K1 A1

34 14K2 B1 K3

34K2

+24V

14B0 K4

14A0

K1

14

11

31

31

11

11

11

12K5 K1

24K2

24K3

24K4

24K4

32K3

32 31

11

21

21

21

21

31

A1K1 0V K2

A1K3

A1K4

A1K5

A1Y1 Y2

A2

A2

A2

A2

A2

A+

B+

B-

A-

Cycle End

0V


31

Exercise 15

Exercise 15

Bending device

Problem Description

The bending tool is used to bend metal strips. The strip is inserted manually. After pressing the Start push button, Cylinder A clamps the workpiece, Cylinder B bends the part and returns to its initial position. Cylinder C completes the bending operation. After Cylinder C has returned to its initial position, Cylinder A releases the part. Use three single solenoid spring return directional control valves.

32


Exercise 15



A0

A1

B0

B1

C0

C1

4(A)Y1

2(B)Y2

4(A)

2(B)Y3

4(A)

2(B)

5(R)

3(S) 1(P)

5(R)

3(S) 1(P)

5(R)

3(S) 1(P)

Electrical Circuit Diagram+24V +24V

13S1 K1

14A1

34 14K2 B1 K3

34K2 K4

34 31

14B0 K4

14C1 K5

14C0 K6

14A0

K1

14

11

31

31

11

11

11

11

11

12K7 K1

24K2

24K3

24K4

24K5

24K6

24K6

32K3

32K5

32 31

11

21

21

21

21

21

21

31

31

A1K1 0V K2

A1K3

A1K4

A1K5

A1K6

A1K7

A1Y1 Y2 Y3

A2

A2

A2

A2

A2

A2

A2

A+

B+

B-

C+

C-

A-

Cycle End

0V


33

ejercicios y soluciones de electroneumatica 15

Documents

consulting festo didactic

push button switches

festo companies

contents ep211 introduction

david hoey resources

indirect actuation

function problem description

consulting description