JPH09317711A - Slide cylinder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an end lock device to be post-attached without changing existing cylinders in the case that specification is varied or remodelled and the end lock device should be added, in a slide cylinder which has a fixation part having a cylinder and a moving part relatively displaceably connected to the fixation part through a guide member, the moving part being relatively displaced through supplying of compressed air to the cylinder. SOLUTION: A lock block 35 having a guide tapered surface 37 and an engagement hole is detachably attached to a side surface of a moving part 18. A lock piston has an engagement part 48 which retreats while being guided by the guide tapered surface 37 and is detachably engaged with the engagement hole. A lock cylinder device 38 is detachably attached to a side surface 2b of a fixation part 1, which device 38 detachably engages the engagement part with the hole by energizing force of a spring means, and disengages the part by supplying compressed air.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide cylinder, and more specifically, a slide cylinder is vertically moved so that a moving portion, which is relatively displaced by a supply of compressed air, is relatively vertically displaced. If the compressed air pressure drops for some reason when the moving part is located at the upper end position of the moving part, the moving part will not drop unexpectedly due to its own weight etc. The present invention relates to a slide cylinder provided with an end lock device that locks a moving part.

[0002]

2. Description of the Related Art Conventionally, a fixed portion provided with a cylinder,
There has been proposed a slide cylinder that includes a moving portion connected to the fixed portion via a guide member so as to be relatively displaceable, and supplies compressed air to the cylinder to relatively displace the moving portion with respect to the fixed portion. A kind of slide cylinder is used, for example, as a means for connecting a member such as an air chuck (hereinafter, simply referred to as an air chuck) to a moving part and holding and transporting a work by the air chuck.

However, when the slide cylinder is arranged in the up-down direction so that the moving part is relatively displaced in the up-down direction, the pressure of the compressed air is abnormal in the pipe when the moving part is located at the upper end position of the moving part. If it is lowered for some reason, the moving part may unexpectedly drop due to its own weight, etc. Therefore, there is a possibility that the work, the air chuck or the slide cylinder may be damaged due to the impact at the time of dropping due to this.

On the other hand, conventionally, as shown in FIG.
A slide cylinder provided with an end lock device has been proposed. In this end lock device, a bracket 51 having a guide inclined surface 52 and an engagement hole 53 is fixed to one end member 55 of a fixed portion 54 of the slide cylinder. The lock cylinder mechanism 56 provided with a pin-shaped engaging portion 57 that is removably guided by the guide inclined surface 52 and removably engages with the engaging hole 53 is provided in the sliding cylinder moving portion 58. It is integrally incorporated in the table 59 (see Japanese Utility Model Laid-Open No. 64-29512).

However, according to this conventional technique, the lock cylinder mechanism 56 provided with the pin-shaped engaging portion 57 is integrally incorporated in the table 59 of the moving portion 58 of the slide cylinder, and the wall thickness of the table 59 is reduced. Since the lock cylinder has to be roughly formed, the end lock device cannot be retrofitted to the existing slide cylinder.

[0006]

SUMMARY OF THE INVENTION In view of the above points, the present invention provides a slide cylinder in a vertical direction so that a moving portion, which moves relative to a fixed portion by supplying compressed air, moves in a vertical direction. When installed, even if the pressure of compressed air drops for some reason while the moving part is located at the upper end position of the moving part, it is possible to prevent the moving part from accidentally falling due to its own weight, etc. Moreover, even if the end lock device needs to be added later (afterwards) due to the specification change or modification of the equipment, it is possible to retrofit the end lock device without changing the existing slide cylinder. It is intended to provide a slide cylinder.

[0007]

To achieve the above object, a slight cylinder according to claim 1 of the present invention is connected to a fixed portion provided with a cylinder and a relative displacement between the fixed portion and a guide member. A slide cylinder for supplying compressed air to the cylinder to relatively displace the moving portion with respect to the fixed portion, wherein the lock block having a guide inclined surface and an engaging hole is moved. A lock piston provided detachably on the side surface of the portion, retracted by being guided by the guide inclined surface, and provided with an engaging portion that detachably engages with the engaging hole; A lock cylinder device that engages the engaging portion with the engaging hole and releases the engagement by supplying compressed air is detachably provided on the side surface of the fixing portion.

A slide cylinder according to a second aspect of the present invention is the slide cylinder according to the first aspect, in which compressed air is introduced into a lock cylinder device from a pipe port communicating with the cylinder provided in the fixed portion. The lock cylinder device is provided with a flow path for displacing and releasing the engagement.

According to a third aspect of the present invention, in the slide cylinder according to the first aspect, the slide cylinder communicates with a flow path for introducing compressed air into the lock cylinder device to displace the lock piston and release the engagement. The lock cylinder device is provided with a piping port for introducing compressed air into the cylinder of the fixed portion to relatively displace the moving portion.

According to a fourth aspect of the present invention, in the slide cylinder according to the first, second or third aspect, the lock block is provided as a part of the stopper for regulating the movement end position of the moving portion. I decided to

[0011]

In the slide cylinder according to claim 1 of the present invention having the above structure, the lock block having the guide inclined surface and the engaging hole is detachably provided on the side surface of the moving portion and is guided to the guide inclined surface. The lock piston is provided with an engaging portion that is retracted and retracts and is detachably engaged with the engaging hole, and the engaging portion is engaged with the engaging hole by the urging force of the spring means and is engaged by supplying compressed air. Since the lock cylinder device for releasing the engagement is detachably provided on the side surface of the fixed portion, the end lock device including the lock block and the lock cylinder device can be easily retrofitted to the existing slide cylinder. It will be possible.

In addition to this, in the slit cylinder according to claim 2 of the present invention having the above-mentioned structure, the compressed air is introduced into the lock cylinder device from the pipe port communicating with the cylinder provided in the fixed portion to lock the lock cylinder device. Since the lock cylinder device is provided with a flow path for displacing and disengaging the piston, it is possible to commonly use the piping port of the fixed part for both the cylinder of the fixed part and the end lock device. It will be possible.

Further, in the slide cylinder according to claim 3 of the present invention having the above-mentioned structure, the compressed air is introduced into the lock cylinder device to communicate with the flow path for displacing the lock piston to disengage the lock piston, and the fixing portion. Since the lock cylinder device is provided with a piping port that introduces compressed air into the cylinder to relatively displace the moving part, this pipe port provided in the lock cylinder device is connected to the cylinder of the fixed part and the end lock device. It can be commonly used for both.

Further, in the slide cylinder according to claim 4 of the present invention having the above-mentioned structure, since the lock block is provided as a part of the stopper for regulating the movement end position of the moving portion, this lock block is provided. It is possible to achieve the movement end position regulation function and the lock function with only one stopper provided.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION In the slide cylinder of the present invention, the relative displacement of the moving portion is performed by supplying compressed air, and the unlocking of the end lock device is also performed by supplying compressed air. It can be shared by both parties.

[0016]

Next, an embodiment of the present invention will be described with reference to the drawings.

As described above, the end lock device is a combination of a lock block and a lock cylinder device. First, an example of the slide cylinder without the end lock device is shown in FIGS. 1 to 6. .

A cylinder 3 is provided inside a box-shaped body 2 which constitutes the fixed portion 1, and a pair of pistons 4 and 5 slidably inserted into a cavity are provided with a pair of cylinder chambers 6 and 6, respectively.
7 is defined. Both ends of the cavity are closed by end covers 8 and 9, respectively. One side 2 of the body 2
a is provided with a first piping port 10 that communicates with one cylinder chamber 6 and supplies compressed air to the cylinder chamber 6.
A second piping port 11 is provided symmetrically on the opposite side surface 2b of the body 2 so as to communicate with one cylinder chamber 6 and supply compressed air to the cylinder chamber 6. Either one of the first and second piping ports 10 and 11 is selectively used, and the unused port (the second piping port 11 in the illustrated example) is closed by a plug 12. The other cylinder chamber 7 is provided on one side surface 2a of the body 2.
A third piping port 13 that communicates with the cylinder chamber 7 to supply compressed air to the cylinder chamber 7 is provided, and the side surface 2b on the opposite side of the body 2 also communicates with the other cylinder chamber 7 so that the compressed air flows into the cylinder chamber 7. Is provided symmetrically to the fourth piping port 14. Either one of the third and fourth piping ports 13 and 14 is selectively used, and the one not used (the fourth piping port 14 in the example of the drawing)
Is closed by a plug 15. Taps 16 for mounting a plurality of parts are provided on both side surfaces 2a, 2b of the body 2, respectively.
Is provided.

A convex rail portion 17 is provided on one surface of the body 2 in parallel with the cylinder 3, and a table 19 of a moving portion 18 having a substantially U shape when viewed from the direction of FIG. It is arranged to straddle. Rail part 1
Linear track grooves (not shown) are provided in parallel with the cylinder 3 on both side surfaces of the table 7 and the inner surface of the table 19 opposed to the ball guide members (also referred to as rolling elements). (Not shown) is rotatably interposed, whereby the table 19 is linearly displaceable relative to the body 2 via this guide member. A pin-shaped connecting member 20 is sandwiched between the pair of pistons 4 and 5, and a tip portion of the connecting member 20 projects to the outside of the body 2 and is connected to the table 19. The hole (not shown) for inserting the connecting member 20 provided in the body 2 is
The connecting member 20 is formed in a long hole shape in a direction parallel to the cylinder 3 to allow the connecting member 20 to move according to the pistons 4 and 5, and as a result, the space 21 between the pair of pistons 4 and 5 is exposed to the atmosphere. It is open.

A mounting rail 22 is screwed to the outside of one side surface 2a of the body 2, and a pair of magnetic detection switches 23 and 24 for magnetically detecting the position of the table 19 are mounted on the mounting rail 22. Corresponding to, a permanent magnet 25 is attached to the side surface of the table 19.
Further, an adjusting block 26 is screwed to a part of the tap 16 on the outside of the side surface 2b opposite to the body 2,
The shock absorber 27 is attached to the adjusting block 26.
Is attached. Further, a box-shaped stopper 28 is screwed to the outside of the side surface of the table 19 on the adjustment block 26 side, and when the stopper 28 moves according to the table 19 and comes into contact with the shock absorber 27, the shock absorber 27. After the cushioning function is exhibited, the movement of the moving portion 18 including the stopper 28, the table 19, the connecting member 20, and the pistons 4 and 5 in this direction is stopped. The stopper 28, the adjusting block 26, and the shock absorber 27 have a function of restricting the movement end position, which corrects the same function of the above-described elongated hole with respect to its stroke.

Stopper 28 and adjustment block 2
No. 6 can be easily removed when the movement end position adjustment of the moving portion 18 is unnecessary. When the shock absorbing function is unnecessary, a metal bolt or a bolt having a shock absorbing rubber at the tip may be attached to the adjusting block 26 instead of the shock absorber 27. It is also possible to adjust the end positions of movement on both sides by additionally mounting the second adjusting block 26 on the other tap 16 provided on the body 2.

Next, another example of the slide cylinder in a state where the end lock device is not attached is shown in FIGS.
Shown in

A cylinder 3 is provided inside a box-shaped body 2 which constitutes the fixed portion 1, and a piston 4 slidably inserted into a cavity defines a pair of cylinder chambers 6 and 7. There is. Both ends of the cavity are closed by end covers 8 or rod covers 29, respectively. A first piping port 10 that communicates with one cylinder chamber 6 to supply compressed air to the cylinder chamber 6 is provided on one side face 2a of the body 2, and the other side face 2b of the body 2 is also provided with one cylinder. A second piping port 11 that is in communication with the chamber 6 and supplies compressed air to the cylinder chamber 6 is provided symmetrically. Either one of the first and second piping ports 10 and 11 is selectively used, and the unused port (the second piping port 11 in the illustrated example) is closed by a plug 12. A third piping port 13 that communicates with the other cylinder chamber 7 and supplies compressed air to the cylinder chamber 7 is provided on one side face 2a of the body 2, and the other cylinder is also provided on the opposite side face 2b of the body 2. A fourth piping port 14 that is in communication with the chamber 7 and supplies compressed air to the cylinder chamber 7 is provided symmetrically. Either one of the third and fourth piping ports 13 and 14 is selectively used, and the unused port (the fourth piping port 14 in the example of the drawing) is provided with a seal member 30 described later. It is closed by the adjusting block 26. A plurality of taps 16 for mounting components are provided on both side surfaces 2a, 2b of the body 2, respectively.

A convex rail portion 17 is provided on one surface of the body 2 in parallel with the cylinder 3, and a table 19 of a moving portion 18 having a substantially U shape when viewed from the direction of FIG.
It is arranged so as to straddle 7. Linear track grooves (not shown) are provided in parallel with the cylinder 3 on both side surfaces of the rail portion 17 and the inner surface of the table 19 facing the rail portion 17, and a large number of ball-shaped guide members (both rolling elements and rolling elements are provided in the grooves). (Not shown) is rotatably interposed, whereby the table 19 is linearly displaceable relative to the body 2 via this guide member. One end of a rod 31 is connected to the piston 4, and the other end of the rod 31 penetrates the rod cover 29 to project to the outside of the body 2 and is connected to the table 19 via a tip plate 32.

A mounting rail 22 is screwed to the outside of one side surface 2a of the body 2, and the table 1 is mounted on the rail 22.
A pair of magnetic detection switches 2 for magnetically detecting the position of 9
3, 24 are attached, and the permanent magnet 25 is attached to the side surface of the table 19 correspondingly. Further, the seal member 30 is provided on the outer side of the side surface 2b opposite to the body 2.
An adjusting block 26 including a screw is screwed to a part of the taps 16, and a shock absorber 27 is attached to the adjusting block 26. A substantially box-shaped stopper 28 is screwed to the outside of the side surface of the table 19 on the adjustment block 26 side. When the stopper 28 moves along the table 19 and comes into contact with the shock absorber 27, this shock absorber After the buffering function of 27 is exhibited, the stopper 2
The movement of the moving portion 18 including the table 8, the table 19, the tip plate 32, the rod 31, and the piston 4 in this direction is stopped.

Stopper 28 and adjustment block 2
No. 6 can be easily removed when the movement end position adjustment of the moving portion 18 is unnecessary. When the shock absorbing function is unnecessary, a metal bolt or a bolt having a shock absorbing rubber at the tip may be attached to the adjusting block 26 instead of the shock absorber 27. It is also possible to adjust the end positions of movement on both sides by additionally mounting the second adjusting block 26 on the other tap 16 provided on the body 2.

13 and 14 show an example of the end lock device mounted on the slide cylinder described above, and FIGS. 15 to 20 show an example of the slide cylinder to which this kind of end lock device is attached. Show. 21 to 26 show another example of the slide cylinder to which the same type of end lock device is attached.

The lock block 35 is the moving portion 18 described above.
Side stopper 28 is provided as an arm in a part thereof, and in this arm-shaped lock block 35, there is a through hole-shaped or concave-shaped engagement hole 36 and a guide inclined surface provided on the tip side thereof. And 37 are provided. In the lock cylinder body 39 of the lock cylinder device 38, a concave portion 40 having an opening facing the lock block 35, a breather hole 41 communicating from the bottom surface of the concave portion 40 to the outside, and a surface of the fixing portion 1 abutting on the body 2 are provided. A housing 42 in which the seal member 43 is mounted and a flow path 44 communicating with the recess 40 from the housing 42 are provided, and the recess 40 is provided with a spring means 45, a lock piston 46, and a bearing 47 in that order from the bottom side thereof. ing. At the tip of the lock piston 46,
An engaging portion 48, which is a reduced diameter cylindrical body, is integrally provided. The bearing 47 is fixed to the recess 40, a hole is formed in the shaft core thereof, and the engaging portion 48 penetrates and projects to the outside.

In the mounted state shown in FIG. 15 and thereafter, the lock cylinder device 38 having the above structure is screwed to the outside of the side surface 2b on the opposite side of the body 2 with a part of the taps 16. Also, prior to this screwing, the second piping port 1
The plug 12 that has closed 1 is removed, and the first piping port 10 is used to pass through the one cylinder chamber 6, the second piping port 11, the housing 42 whose outer periphery is sealed by the sealing member 43, and the flow path 44. A pressure introducing path is formed in which the lock piston 46 is displaced when compressed air is supplied, the engaging portion 48 is retracted from the state of FIG. 13 to the state of FIG. 14, and is disengaged from the engaging hole 36.

The engaging portion 48 is normally pushed by the spring means 45 so that the tip of the engaging portion 48 is projected to the outside of the lock cylinder body 39, and the engagement portion 48 extends from the first piping port 10 through the above-mentioned path to the inside of the lock cylinder device 38. When compressed air is supplied to the lock piston 46, the lock piston 46 moves from the state of FIG.
The engaging portion 48 is retracted by moving downward against the elasticity of 5. When the compressed air supplied into the lock cylinder device 38 is discharged, the lock piston 46 moves upward from the state of FIG. 14 by the elasticity of the spring means 45, and the engaging portion 48 is projected. Therefore, this engaging portion 48
The lock block 35 moves the moving portion 1 when the
8 moves from the left side of FIG. 13, for example, the engaging portion 48 causes the guide inclined surface 37 of the lock block 35 to move.
When the engaging hole 36 is positioned right above, the projecting portion is automatically protruded by the biasing force of the spring means 45 to engage with the engaging hole 36, and this locking operation causes the fixing portion 1 to move. The relative displacement of the moving part 18 with respect to is limited. Therefore, by arranging the slide cylinder so that the direction of this relative displacement of the moving portion 18 is upward and the lock operating position is the moving upper end position, the moving portion 18 is moved.
Even if the pressure of the compressed air drops for some reason in the state where the moving portion 18 is located at the moving upper end position, the end lock device is locked, so that the moving portion 18 is prevented from accidentally falling due to its own weight or the like. You can When the lock is released, compressed air is supplied into the lock cylinder device 38 as described above, but the lock cylinder device 38 is manually released by pressing the tip of the engaging portion 48 with a needle-shaped jig or the like. Is also possible. Further, the compressed air supplied to the first piping port 10 passes through the one cylinder chamber 6 and the lock cylinder device 38.
Since the structure is introduced in, the end lock device is unlocked each time the moving part 18 starts the descending operation from the moving upper end position, and the moving part 18 rises and reaches the moving upper end position each time. It will be locked. Further, since the first piping port 10 can be commonly used for both the cylinder 3 of the fixed portion 1 and the end lock device, it is necessary to increase the number of pipes even if the end lock device is attached. There is no.

Next, an example of a slide cylinder with an end lock device according to another example attached is shown in FIGS. 27 to 32, and another example of a slide cylinder with an end lock device of the same type attached. 33 to FIG.
8 shows.

That is, this end block device differs from the end block devices of FIGS. 13 and 14 described above in that the lock cylinder body 3 of the lock cylinder device 38 is different.
9, a piping port 49 is newly provided together with other components, and compressed air is introduced from the piping port 49 into the lock cylinder device 38 through the flow path 44 to displace and engage the lock piston 46. The engagement portion 48 is disengaged from the hole 36, and compressed air is supplied from the piping port 49 to the one cylinder chamber 6 via the flow path 44, the housing 42 and the second piping port 11. It is introduced so that the piston 4 is displaced and the moving portion 18 is relatively displaced. Further, a piping port 50 is newly provided in the adjusting block 26 so that the piping can be completed on the same side surface 2b of the body 2, and the other cylinder chamber 7 is connected from this piping port 50 through the fourth piping port 14. Compressed air is introduced into. First and third piping ports 10, 13
Is not used, it will be closed by the plugs 12, 15.

[0033]

The present invention has the following effects.

That is, first, in the slide cylinder according to claim 1 of the present invention having the above-mentioned structure, the slide cylinder is moved so that the moving portion, which moves relative to the fixed portion by the supply of compressed air, moves in the vertical direction. If the compressed air pressure drops for some reason when the moving part is located at the upper end position of the moving part, the moving part drops unexpectedly due to its own weight. Can be prevented. Therefore, it is possible to prevent the work, the air chuck, or the slide cylinder from being damaged due to this unexpected drop. In addition, in the case where the end lock device needs to be added later (afterwards) due to the specification change or modification of the equipment, the end lock device can be retrofitted without changing the existing slide cylinder.

In addition to this, in the slit cylinder according to claim 2 of the present invention having the above-mentioned structure, the compressed air is introduced into the lock cylinder device from the pipe port communicating with the cylinder provided in the fixed portion to lock the lock cylinder device. Since the lock cylinder device is provided with a flow path for displacing and disengaging the piston, it is possible to commonly use the piping port of the fixed part for both the cylinder of the fixed part and the end lock device. it can. Therefore, it is not necessary to increase the number of pipes even if the end lock device is attached. The piping port of the fixed portion can be used as a normal piping port when the end lock device is not attached, and the degree of freedom of piping can be improved.

Further, in the slide cylinder according to claim 3 of the present invention having the above-mentioned structure, the compressed air is introduced into the lock cylinder device to communicate with and fix the flow passage for displacing and disengaging the lock piston. Since the lock cylinder device is provided with a piping port for introducing compressed air into the cylinder of the lock portion to relatively displace the moving portion, the lock cylinder device is provided with a pipe port of the lock portion and the end lock device. Can be commonly used for both. Therefore, it is not necessary to increase the number of pipes even if the end lock device is attached.

Further, in the slide cylinder according to claim 4 of the present invention having the above structure, since the lock block is provided as a part of the stopper for regulating the movement end position of the moving portion, the lock block is provided. It is possible to achieve the movement end position regulation function and the lock function with only one stopper provided. Therefore, the volume increase due to the attachment of the end lock device is extremely small, and the end lock device can be attached without changing the existing slide cylinder.

[Brief description of drawings]

FIG. 1 is a front view showing a state before mounting an end lock device of a slide cylinder according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of the internal structure of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is a left side view of the same.

FIG. 5 is a right side view of the same.

FIG. 6 is a bottom view of the same.

FIG. 7 is a front view showing a state before the end lock device is mounted on the slide cylinder according to the second embodiment of the present invention.

FIG. 8 is an explanatory diagram of the internal structure of the same.

FIG. 9 is a plan view of the same.

FIG. 10 is a left side view of the same.

FIG. 11 is a right side view of the same.

FIG. 12 is a bottom view of the same.

FIG. 13 is a sectional view showing a locked state of the end lock device.

FIG. 14 is a sectional view showing an unlocked state of the end lock device.

FIG. 15 is a front view of a slide cylinder according to a first embodiment of the present invention.

FIG. 16 is an explanatory view of the internal structure of the same.

FIG. 17 is a plan view of the same.

FIG. 18 is a left side view of the same.

FIG. 19 is a right side view of the same.

FIG. 20 is a bottom view of the same.

FIG. 21 is a front view of a slide cylinder according to a second embodiment of the present invention.

FIG. 22 is an explanatory diagram of the internal structure of the same.

FIG. 23 is a plan view of the same.

FIG. 24 is a left side view of the same.

FIG. 25 is a right side view of the same.

FIG. 26 is a bottom view of the same.

FIG. 27 is a front view of a slide cylinder according to a third embodiment of the present invention.

FIG. 28 is an explanatory diagram of the internal structure.

FIG. 29 is a plan view of the same.

FIG. 30 is a left side view of the same.

FIG. 31 is a right side view of the same.

FIG. 32 is a bottom view of the same.

FIG. 33 is a front view of a slide cylinder according to a fourth embodiment of the present invention.

FIG. 34 is an explanatory view of the internal structure of the same.

FIG. 35 is a plan view of the same.

FIG. 36 is a left side view of the same.

FIG. 37 is a right side view of the same.

FIG. 38 is a bottom view of the same.

FIG. 39 is an explanatory diagram of an end lock device according to a conventional example.

[Explanation of symbols]

 1 Fixed part 2 Body 2a, 2b Side surface 3 Cylinder 4,5 Piston 6,7 Cylinder chamber 8,9 End cover 10, 11, 13, 14, 49, 50 Piping port 12, 15 Plug 16 Tap 17 Rail part 18 Moving part 19 table 20 connecting member 21 space 22 mounting rail 23, 24 magnetic detection switch 25 permanent magnet 26 adjusting block 27 shock absorber 28 stopper 29 rod cover 30, 43 sealing member 31 rod 32 end plate 35 lock block 36 engaging hole 37 guide inclination Surface 38 Lock Cylinder Device 39 Lock Cylinder Main Body 40 Recess 41 41 Breathing Hole 42 Housing 44 Flow Path 45 Spring Means 46 Lock Piston 47 Bearing 48 Engagement Part

Claims (4)

[Claims] 1. A fixed part (1) provided with a cylinder (3).
And a moving part (18) connected to the fixed part (1) via a guide member so as to be relatively displaceable, and compressed air is supplied to the cylinder (3) to move the moving part (18). A slide cylinder for relative displacement with respect to a fixed portion (1), wherein a lock block (35) having a guide inclined surface (37) and an engagement hole (36) can be attached to and detached from a side surface of the moving portion (18). And an engaging portion (4) which is reciprocally guided by the guide inclined surface (37) and removably engages with the engaging hole (36).
8) is provided with a lock piston (46), the engagement portion (48) is engaged with the engagement hole (36) by the biasing force of the spring means (45), and the engagement is performed by supplying compressed air. A slide cylinder, wherein a lock cylinder device (38) for releasing the lock cylinder is detachably provided on a side surface (2b) of the fixing portion (1). 2. The lock cylinder according to claim 1, wherein compressed air is introduced into a lock cylinder device (38) from a piping port (10) communicating with a cylinder (3) provided in the fixed portion (1). A slide cylinder characterized in that a channel (44) for displacing (46) and releasing engagement is provided in the lock cylinder device (38). 3. The slide cylinder according to claim 1, wherein compressed air is introduced into the lock cylinder device (38) to communicate with and fix the flow passage (44) for displacing and disengaging the lock piston (46). Part (1) cylinder (3)
A pipe port (49) for introducing compressed air into the moving cylinder (18) to relatively displace the moving portion (18) is provided in the lock cylinder device (3
8) A slide cylinder, which is provided in (8). 4. The slide cylinder according to claim 1, 2 or 3, wherein the lock block (35) is provided as a part of a stopper (28) for restricting a movement end position of the moving portion (18). A slide cylinder characterized by.