Pneumatics Exercises Solution Sheet

8/17/2019 Pneumatics Exercises Solution Sheet

1/26

Name: _________________________________ Score: __________________ Rank: _________________________________ Date: __________________

Basic PneumaticsExercise No. 2

Control of a single – acting cylinder

The Problem:

The movement of a single – acting cylinder is to be affected from two different points ! singleacting cylinder of "# mm diameter is to emboss a metal plate when any of the two p$shb$ttons is pressed !s long as the p$sh b$tton is activated% the cylinder is to remain in theposition &f the p$sh b$tton is released% the cylinder is to retract

The Diagram:

Name: _________________________________ Score: __________________

''( (

""

(" ()

"


2/26

Rank: _________________________________ Date: __________________

Basic PneumaticsExercise No. 3

Control of a single – acting cylinder

The Problem:

The piston rod of a single – acting cylinder may move o$t only if two ' * " – way valves areact$ated ! single acting cylinder of "# mm diameter is to emboss a metal plate only if twop$sh b$ttons are pressed !s long as the two p$sh b$ttons are activated% the cylinder is toremain in the position &f any of the two p$sh b$ttons is released% the cylinder is to retract

The Diagram:


'' ((

""

"

( * '(

"

()("


3/26

Basic Pneumatics

Exercise No. 4

Speed regulation on single – acting cylinder

The Problem:

The piston speed in a single – acting cylinder is to be ad+$stable for the advance movement ! single acting cylinder of "# mm diameter is to clamp a component when a p$sh b$tton ispressed The clamping sho$ld be ad+$stable !s long as the p$sh b$tton is activated% thecylinder is to remain in the position &f the p$sh b$tton is released% the clamp is to retract

The Diagram:

Name: _________________________________ Score: __________________

Rank: _________________________________ Date: __________________

( '

"


4/26

Basic Pneumatics

Exercise No. 5


The Problem:

The piston speed in a single – acting cylinder is to be ad+$stable for the ret$rn movement !single acting cylinder of "# mm diameter is to emboss a metal plate when a p$sh b$tton ispressed !s long as the p$sh b$tton is activated% the cylinder is to remain in the position &f thep$sh b$tton is released% the cylinder is to retract slowly

The Diagram:

Name: _________________________________ Score: __________________

Rank: _________________________________ Date: __________________

'(

"


5/26

Basic Pneumatics

Exercise No.


The Problem:

The piston speed in a single – acting cylinder is to be ad+$stable and throttled separately for the advance and ret$rn movements ! single acting cylinder of "# mm diameter is to clamp acomponent when a p$sh b$tton is pressed The clamping sho$ld be ad+$stable !s long asthe p$sh b$tton is activated% the cylinder is to remain in the position &f the p$sh b$tton isreleased% the clamp is to retract slowly

The Diagram:

Name: _________________________________ Score: __________________

Rank: _________________________________ Date: __________________

"

'(


6/26

Basic Pneumatics

Exercise No. !


The Problem:

The ret$rn speed of a single – acting cylinder is to be increased by means of a ,$ick e-ha$stvalve ! single acting cylinder of "# mm diameter is to emboss a metal plate when a p$shb$tton is pressed !s long as the p$sh b$tton is activated% the cylinder is to remain in theposition &f the p$sh b$tton is released% the cylinder is to retract very fast

The Diagram:

Name: _________________________________ Score: __________________

Rank: _________________________________ Date: __________________


7/26

Basic Pneumatics

Exercise No. "

Control of dou#le – acting cylinder

The Problem:

The piston rod of a do$ble acting cylinder is to move o$t or in by switching a valve ! do$bleacting cylinder of "# mm diameter is to emboss a metal plate when a valve is switched !slong as the valve is activated% the cylinder is to remain in the position &f the valve is released%the cylinder is to retract

The Diagram:

Name: _________________________________ Score: __________________

Rank: _________________________________ Date: __________________


8/26

Basic Pneumatics

Exercise No. $

Speed regulation on dou#le – acting cylinder

The Problem:

The advance and ret$rn movement speeds of a do$ble – acting cylinder are to be reg$lated ! do$ble acting cylinder of "# mm diameter is to clamp a component when a valve isactivated The clamping sho$ld be ad+$stable !s long as the valve is activated% the cylinder isto remain in the position &f the valve is released% the clamp is to retract slowly

The Diagram:



9/26

Basic Pneumatics

Exercise No. %&

Speed regulation on dou#le – acting cylinder

The Problem:

The advance movement speed of a do$ble – acting cylinder is to increase ! do$ble actingcylinder of "# mm diameter is to emboss a component when a valve is activated Theembossing sho$ld be very fast to ens$re clear markings !s long as the valve is activated% thecylinder is to remain in the position &f the valve is released% the cylinder is to retract

The Diagram:



10/26

Basic Pneumatics

Exercise No. %%

'ndirect control of a single – acting cylinder

The Problem:

! piston rod of a large – vol$me single – acting cylinder .large diameter% long stroke length%long lines% $ne,$al press$re/ is to move o$t after act$ating a valve and ret$rn immediately toits end position after releasing this valve

The Diagram:



11/26

Basic Pneumatics

Exercise No. %2

'ndirect control of a dou#le – acting cylinder

The Problem:

! piston rod of a large – vol$me do$ble – acting cylinder .large diameter% long stroke length%long lines% $ne,$al press$re/ is to move o$t after act$ating a valve and ret$rn immediately toits end position after releasing this valve

The Diagram:

Name: _________________________________ Score: __________________

Rank: _________________________________ Date: __________________


12/26

Basic Pneumatics

Exercise No. %3


The Problem:

The signals to e-tend and to retract the piston rod of a large – vol$me do$ble – actingcylinder .large diameter% long stroke length% long lines% $ne,$al press$re/ are given fromseparate p$sh b$ttons The cylinder is to remain in the position indicated by the last signal%$ntil an opposing signal is given

The Diagram:

Name: _________________________________ Score: __________________

Rank: _________________________________ Date: __________________


13/26

Basic Pneumatics

Exercise No. %4


The Problem:

The signal to e-tend the piston rod of a large – vol$me do$ble acting cylinder is given by ap$sh b$tton ! sensor is $sed to indicate that the cylinder has reached the f$lly e-tendedposition

!dditional conditions:.a/ The cylinder m$st a$tomatically retract once reached the f$lly e-tended position.b/ The e-tend and retract movement speed m$st be slow and ad+$stable

The Diagram:

Name: _________________________________ Score: __________________

Rank: _________________________________ Date: __________________

0S

0S


14/26

Basic Pneumatics

Exercise No. %5


The Problem:

The signal to e-tend the piston rod of a large – vol$me do$ble acting cylinder is given by ap$sh b$tton Sensors are $sed to indicate that the cylinder has reached the f$lly e-tendedand f$lly retracted positions

!dditional conditions:.a/ The cylinder m$st a$tomatically retract once reached the f$lly e-tended position.b/ The e-tend and retract movement speed m$st be slow and ad+$stable

.c/ The cylinder m$st a$tomatically repeat the cycle once reached the f$lly retracted position

.d/ ! valve is act$ated to stop the cycle

.e/ The circ$it m$st be so constr$cted that each time a start signal is given% a f$ll cycle iscompleted

The Diagram:

Name: _________________________________ Score: __________________

Rank: _________________________________ Date: __________________

0S(

0S"

0S(

0S"


15/26

Basic Pneumatics

Exercise No. %

(pening and closing of a pneumatic gate

The Problem:

! gate is to be controlled pne$matically The 1ate is to be opened or closed by means of fo$r .)/ p$sh b$ttons 23pen4 and 25lose4% two ."/ being inside and two ."/ o$tside 3pening andclosing sho$ld be slow and separately ad+$stable

The Diagram:

Name: _________________________________ Score: __________________

Rank: _________________________________ Date: __________________


16/26

Basic Pneumatics

Exercise No. %!

)e*er clamp +it, drill

The Problem:

The clamping of a work piece is to be controlled by a p$sh b$tton ! f$rther p$sh b$tton is tocontrol de – clamping

!dditional conditions:.a/ 5lamping is only to be possible when a work piece is present.b/ The clamping speed is to be slow and ad+$stable.c/ De – clamping is to be interlocked d$ring drilling

.d/ The drilling speed is to be slow and ad+$stable

.e/ De – clamping is to be very fast

The Drill Diagram:

Basic PneumaticsExercise No. %!

Drill Sensor

l


17/26

)e*er clamp +it, drill

The 5lamp Diagram:


6ork Piece Sensor

l

6ork Piece Sensor Drill Sensor

De 7 clamp

5lamp


18/26

Basic Pneumatics

Exercise No. %"

)ifting de*ice for #oxes

The Problem:

5onditions:.a/ The bo-es arrive on a roller conveyor and are lifted by cylinder (8.b/ 5ylinder "8 p$shes the bo-es onto the second roller conveyor.c/ 5ylinder (8 shall not ret$rn $ntil cylinder "8 has reached the e-tended position.d/ 5ylinder "8 shall not ret$rn $ntil cylinder (8 has reached the retracted position.e/ The e-tend and retract movement speed of cylinder (8 and "8 m$st be slow andad+$stable

.f/ The se,$ence cannot be repeated $ntil cylinder "8 reached the retracted position

The Diagram:


(" (' "" "'

()

(( "(

(8 "8"' "" () ('


19/26

Basic Pneumatics

Exercise No. %$

)ifting de*ice for #oxes 2

The Problem:

5onditions:.a/ The bo-es arrive on a roller conveyor and are lifted by cylinder (8.b/ 5ylinder "8 p$shes the bo-es onto the second roller conveyor.c/ 5ylinder "8 shall not ret$rn $ntil cylinder (8 has reached the retracted position.d/ The se,$ence will be repeated once cylinder "8 reached the retracted position.e/ ! valve is $sed to stop the se,$ence always in a complete cycle.f/ The e-tend and retract movement speed of cylinder (8 and "8 m$st be slow and

ad+$stable

The Diagram:

Name: _________________________________ Score: __________________

Rank: _________________________________ Date: __________________

()("

(#

(9

('

((

(8 "8

"""'

"(

('()"' ""


20/26

Basic Pneumatics

Exercise No. 2&

Bending tool

The Problem:

Sheet metal is to be beaded on a pne$matically act$ated bending rig !fter it has beenclamped% the piece is initially bent by a do$ble – acting cylinder (8 and s$bse,$ently bentinto the finished form by cylinder "8 .for # seconds/ The se,$ence is initiated man$ally byp$sh b$tton

The Diagram:

Name: _________________________________ Score: __________________

Rank: _________________________________ Date: __________________

(8 "8

(( "(

(" (' "" "'

"" (' "'


21/26

Electro – Pneumatics

Exercise No. 2

Cutting de*ice

The Problem:

sing a c$tting device% sheets of papers are to be c$t in si;e

To ens$re safety% the c$tting device is only to e-tend if the protective g$ard is closed whichact$ates switch S( and the start b$tton switch S" &s operated

&f either of these conditions is not met% the c$tting device is to retract immediately ! singlesolenoid valve with spring ret$rn operates the cylinder piston rod

The Diagram:

Name: _________________________________ Score: __________________

Rank: _________________________________ Date: __________________

Pne$matic:


22/26


Exercise No. 3

S+i*el Bridge

The Problem:

! swivel bridge is bo$ght into desired position by means of a do$ble – acting cylinder Thepiston rod of a do$ble – acting cylinder is to e-tend when a p$sh b$tton switch is act$atedThe cylinder is to remain e-tended $ntil a second switch is act$ated and only if the first switchhas been released The cylinder is to then ret$rn to the initial position The cylinder is toremain in the initial position $ntil a new start signal is given The speed of the cylinder is to bead+$stable in both directions of travel

The Diagram:

Name: _________________________________ Score: __________________

Rank: _________________________________ Date: __________________

="

=(

="

=(

>"

>(

>"

>(S

"S

(

!"

!" !

" !

"

!(

!(

!(

!(

('('

()()

' '

) )


23/26


Exercise No. 4

Coordinated motion

The Problem:

Two cylinders are $sed to transfer parts from a maga;ine onto a ch$te 6hen a p$sh b$tton ispressed% cylinder (8 e-tends% p$shing the part from the maga;ine and positions it inpreparation for transfer by cylinder "8 onto the o$t feed ch$te 3nce the part is transferred%the first cylinder retracts% followed by the second The speed of both cylinders is to bead+$stable 5onfirmation of all e-tended and retracted positions is re,$ired

The Diagram:


Exercise No. 4

="

=(

='

=)

0S(

0S"

0S'

0S)

Pne$matic

"8(8


24/26

Coordinated motion


S(

0S'

0S"

0S) 0S(

>(

>"

'

)

)

' ' '

'

) ) )

!(

!"

!(

!"

!(

!"

!(

!"

'

>)

>(

=(

='

('

() ()

('

'

>)


25/26


Exercise No. 5

Em#ossing de*ice

The Problem:

Plastic parts are man$ally placed in a holder ! pne$matic cylinder p$shes the holder $nder an embossing cylinder "8 .?/ This cylinder embosses names in the plastic !fter embossing%the cylinder "8 .?/ ret$rns immediately to its initial position 3nly then does cylinder (8 .!/ret$rn

The Diagram:

="

=(

='

=)

0S(

0S" 0S'

0S)

Pne$matic

"8(8


26/26

Electro – PneumaticsExercise No. 5

Em#ossing de*ice

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@

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S8 0S

"0S

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Pneumatics Exercises Solution Sheet