JP2001304203A - Fluid-pressure actuator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fluid-pressure actuator 1 capable of shortening the overall length of a body 3 and decreased in size in the relative movement direction of a moving part, in the fluid-pressure actuator 1 having mounting holes 20 and 21 and piping ports 17 and 18 formed in the body 3 of which a fixed part 2 consists. SOLUTION: The fluid-pressure actuator 1 causes a moving part to be relatively moved based on the fixed part 2 by feeding compressed air to a cylinder 4 situated at the fixed part 2. The fluid pressure actuator is provided with a plurality of the mounting holes 20 and 21 opened to one surface of the body 3 of which the fixed part 2 consists and the piping ports 17 and 18 opened to a surface extending orthogonally to the aforesaid one surface and the piping ports 17 and 18 are situated further inside in the relative moving direction of the moving part than the mounting holes 20 and 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid pressure actuator used for transferring, supplying, removing or clamping parts or products in a processing or assembling process.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 26 to 28, a fixing portion 52 having a cylinder (not shown) provided therein.
And a moving part 53 connected to the fixed part 52 via a guide part (not shown) so as to be relatively movable.
A fluid pressure actuator 51 that supplies compressed air to a cylinder inside the cylinder 2 and moves the moving unit 53 relative to the fixed unit 52 in the left-right direction in the drawing is known.

In the fluid pressure actuator 51, the fixing portion 52 has a body 54, and the body 54 is mounted and fixed at a predetermined mounting position when the fluid pressure actuator 51 is used. For this reason, the body 54 is provided with a plurality of (four in the figure) mounting holes 55A and 55B that are opened in the plane 54a. Also, as shown in FIG. 27, a piping port 56 for supplying compressed air to the cylinder is provided on one side surface 54b of the body 54, and the other side surface 54c of the body 54 is provided as shown in FIG. The body 54 is provided with a tap 57 for attaching an accessory (not shown) such as a switch rail to the body 54.

The arrangement of the mounting holes 55A and 55B provided in the plane 54a of the body 54 must satisfy the following conditions.

That is, the mounting holes 55A and 55B are
The body 54 is mounted and fixed at a predetermined mounting location by screwing a mounting screw (not shown) into the mounting holes 55A and 55B.
When screwing a mounting screw into the mounting hole 5B, the table 58 constituting the moving portion 53 is manually slid and the mounting hole 55 is screwed.
A, 55B so that they do not overlap with each other on a plane.
It is necessary to secure a space for inserting a jig such as a screwdriver into 5A and 55B. Therefore, between the mounting hole 55A provided on one end side of the relative movement direction of the table 58 and the mounting hole 55B provided on the other end side in the same direction according to the size of the table 58. It is necessary to set the interval D having a predetermined size.

However, in the fluid pressure actuator 51, as described above, the mounting holes 55A, 55B
Is set between them, and the piping port 56 is further disposed outside the mounting holes 55A and 55B in the direction of relative movement of the moving part 53. the total length of the full length _{L 1} is table 58 _{L 2}
Therefore, the fluid pressure actuator 51 cannot be sufficiently miniaturized in the same direction.

[0007]

SUMMARY OF THE INVENTION In view of the above, it is an object of the present invention to provide a fluid pressure actuator in which a body constituting a fixing portion is provided with a mounting hole and a piping port, and the entire length of the body can be shortened as compared with the related art. It is an object of the present invention to provide a fluid pressure actuator that can be made smaller in the relative movement direction of the moving part. Similarly, in a fluid pressure actuator in which a mounting hole, a piping port, and a tap for attaching an accessory are provided in the body constituting the fixed portion, the overall length of the body can be shortened as compared with the conventional case, so that the relative movement of the moving portion can be reduced. It is an object of the present invention to provide a hydraulic actuator that is miniaturized in the direction.

[0008]

In order to achieve the above object, a fluid pressure actuator according to claim 1 of the present invention comprises:
A fluid pressure actuator that supplies compressed air to a cylinder provided in the fixed portion to relatively move the moving portion with respect to the fixed portion, and a plurality of mounting holes opened on one surface of a body that forms the fixed portion, A pipe port opened on a surface orthogonal to the one surface, wherein the pipe port is disposed inside the mounting hole in a direction of relative movement of the moving unit.

According to a second aspect of the present invention, there is provided a fluid pressure actuator for supplying compressed air to a cylinder provided on a fixed portion to move a moving portion relative to the fixed portion. A plurality of mounting holes that open on one surface of the body that forms the fixing portion, a piping port that opens on a surface orthogonal to the one surface, and a tap for attaching an accessory that opens on the same surface as the piping port, The pipe port may be arranged inside the mounting hole in the direction of relative movement of the moving unit, and the tap may be arranged further inside the pipe port.

According to a third aspect of the present invention, in the hydraulic actuator according to the second aspect, the accessory attached to the body by the tap is a switch rail.
It is characterized in that a unique piping port communicating with a piping port provided in the body is provided.

In the fluid pressure actuator according to the first aspect of the present invention having the above configuration, since the piping port is disposed inside the mounting hole in the direction of relative movement of the moving portion, the piping is provided outside the mounting hole. It is not necessary to secure a space for installing the port, so that the total length of the body can be shortened accordingly.

Further, the present invention has the above-mentioned structure.
Similarly, in the fluid pressure actuator according to the above, since the piping port is disposed inside the mounting portion in the relative movement direction of the moving portion, it is necessary to secure a space for installing the piping port outside the mounting hole. Therefore, the overall length of the body can be reduced by this amount. In addition, in the fluid pressure actuator according to the second aspect, since the tap for attaching an accessory is disposed further inside than the piping port, the tap is provided on the body in addition to the mounting hole and the piping port. Even
The overall length of the body does not increase.

[0013] In addition, in the fluid pressure actuator according to the third aspect of the present invention having the above structure,
The switch rail attached to one side of the body is provided on the same side of the body because the switch rail as an accessory attached to the body with a tap has a unique piping port leading to the piping port provided on the body. Even if it overlaps with the piping port, the compressed air can be supplied from the unique piping port provided on the switch rail to the cylinder inside the body via the piping port provided on the body.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a plan view of a hydraulic actuator 1 according to a first embodiment of the present invention, FIG. 2 is a front view of the hydraulic actuator 1, and FIG. 4 is a left side view, and FIG. 5 is a right side view. 6 is a sectional view taken along line AA in FIG. 2, and FIG. 7 is a sectional view taken along line BB in FIG.

[0016] The fluid pressure actuator 1 according to the embodiment.
Has a box-shaped body (also referred to as a cylinder body) 3 that forms the fixing portion 2, and a cylinder 4 is provided inside the body 3 along the longitudinal direction. A pair of slidably inserted pistons 5 and 6 define a pair of cylinder chambers 7 and 8. Both ends of the cylinder 4 are closed by end covers 9 and 10, respectively.

The rail portion 1 which is convex on the plane 3a of the body 3
1 is integrally formed in parallel with the cylinder 4, and a table 13 of a moving section 12 having a substantially U-shaped cross section opened downward as viewed from the direction of FIG. 4 or 5 is disposed so as to straddle the rail section 11. ing. Straight track grooves (not shown) are provided on both side surfaces of the rail portion 11 and the inner surface of the table 13 opposed thereto in parallel with the cylinder 4, and a number of ball-shaped guide members ( Also called rolling elements,
(Not shown) is rotatably interposed,
The table 13 is combined with the body 3 so as to be linearly displaceable relative to the body 3 via the guide member.

A connecting member 14 having a pin shape or a male screw shape is sandwiched between the pair of pistons 5 and 6.
The upper end of the connecting member 14 projects outside the body 3 and is connected to the table 13. The hole 15 for inserting the connecting member 14 provided in the body 3 is
Is formed in a long slot shape in a direction parallel to the cylinder 4 so as to allow the piston to move in accordance with the pistons 5, 6, so that the space 16 between the pair of pistons 5, 6 is open to the atmosphere. Have been. The stroke end of the pistons 5 and 6 is determined by the connecting member 14 abutting on the inner surface of the elongated hole 15.

On one side surface 3b of the body 3, there is provided a first piping port 17 which communicates with one cylinder chamber 7 and supplies compressed air as an operating pressure to the cylinder chamber 7. And the other cylinder chamber 8
And a second piping port 18 for supplying compressed air to the cylinder chamber 8 in communication with the cylinder chamber 8.

Further, a plurality of taps 19 (two places in the figure) are provided on one side surface 3b and the other side surface 3c of the body 3 as mounting portions for mounting accessory parts.
They are provided side by side with each other.

Also, screw-hole-shaped mounting holes (also referred to as fixing screw holes) 20, 21 for mounting and fixing the body 3 at predetermined mounting locations are formed in the flat surface 3a of the body 3 so as to pass through the bottom surface 3d. The mounting holes 20 and 21 are provided.
Are provided at a diagonal position on the plane 3 a of the body 3.

1 and 2, the table 13 of the moving section 12 moves in the horizontal direction with respect to the body 3 of the fixed section 2 in the drawing. , 21 are body 3 respectively
Are located at the outermost ends of the mounting holes 20 and 2.
1, pipe ports 17 and 18 are arranged, and further inside the pipe ports 17 and 18 taps 19 are provided.
Is arranged.

A plurality of taps 22 are provided on the flat surface 13a, one side surface 13b, and the other side surface 13c of the table 13 as mounting portions for mounting a work.
In addition, a long hole 23 and a round hole 24 are provided as an engaging portion for accurately positioning the work at d.

In the fluid pressure actuator 1 having the above structure, the body 3 of the fixed portion 2 is fixedly mounted at a predetermined mounting position, and a work such as a machine tool is mounted on the table 13 of the moving portion 12. The moving part 12 is relatively moved with respect to the fixed part 2 by supplying compressed air to the cylinder 4 in the cylinder 2, and is characterized in that the following effects are achieved by the above configuration.

That is, as described above, the interval between the mounting holes 20 and 21 provided in the body 3 of the fixing portion 2 is set according to the entire length of the table 13 in order to secure a space for inserting the driver. In the fluid pressure actuator 1, since the piping ports 17, 18 are arranged inside the mounting holes 20, 21 instead of outside, it is necessary to provide a space for installing the piping ports 17, 18 at the end of the body 2. There is no, so body 2
Can be shortened. In addition, in the fluid pressure actuator 1, since the tap 19 for attaching an accessory is disposed further inside than the piping ports 17 and 18, the mounting holes 20 and 21 and the piping ports 17 and Even if the tap 19 is provided in addition to the 18, the total length of the body 2 does not increase. Therefore, the fluid pressure actuator 1 can be downsized from the above.

When designing the hydraulic actuator 1 in which the stroke of the moving part 12 or the table 13 is relatively small, this feature is extremely remarkably exhibited. For example, when designing the fluid pressure actuator 1 in which the stroke of the moving part 12 or the table 13 is about 5 mm shorter than the conventional one, the total length of the body 2 is tripled to 15 m due to its internal structure.
m, and a space (length) for one of the mounting holes 20 and 21 may be added to the numerical value determined by the distance. Therefore, the overall length of the body 2 is considerably short.

FIGS. 8 to 14 show a second embodiment of the present invention in which a switch rail 25 is attached to the fluid pressure actuator 1 according to the first embodiment as an accessory. The switch rail 25 and its mounting structure are configured as follows.

That is, the switch rail 25 is a block-shaped mounting portion 2 that is mounted and fixed to the side surface of the body 3.
6 and a mounting groove forming portion 27 integrally formed with the mounted portion 26. The mounting groove 28 is detachably mounted on the body 3 by screwing a mounting screw 28 into a tap 19 provided on a side surface of the body 3. . A mounting screw 28 is attached to the portion 26 to be mounted.
The same number of holes 29 as the taps 19 are provided side by side, and the attached portion 26 is provided with a pair of unique first and second piping ports 30 and 31. The piping ports 17 and 18 provided on the side surface of the body 3 correspond to the switch rails 25.
This unique plumbing port 3
0, 31 for supplying compressed air to the cylinder 4 inside the body 3 through the piping ports 17, 18 of the body 3, and therefore, the piping ports 17, 1 of the body 3
8 is provided at a position communicating with this. The space between the switch rail 25 and the body 3 is sealed by a seal member 32 such as an O-ring.

The mounting groove forming portion 27 integrally formed above the mounted portion 26 is provided with two mounting grooves 33 along the moving direction of the moving portion 12 or the table 13. Each magnetic proximity switch 34 is attached so that the fixed position can be adjusted. The magnetic proximity switch 34 detects the magnetism when the magnet 35 attached to the side surface of the table 13 approaches as the table 13 moves, detects the stroke position of the moving unit 12 or the table 13, and outputs the position to the outside. It sends a signal.

The fluid pressure actuator 1 having the above configuration
According to this, the switch rail 25 as an accessory attached to the body 3 by the tap 19 has a unique piping port 3 communicating with the piping ports 17 and 18 provided in the body 3.
Since 0 and 31 are provided, the switch rail 25 attached to one surface of the body 3 overlaps and closes the piping ports 17 and 18 provided on the same surface of the body 3. , Switch rail 25
The compressed air can be supplied to the cylinder 4 inside the body 3 from the piping ports 30 and 31 provided in the body 3 through the piping ports 17 and 18 provided in the body 3. Therefore, it is possible to complete the connection of the pipe and the attachment of the switch rail as an accessory on one surface of the body, and it is possible to prepare the pipe connection and the attachment of the accessory. In addition, since the piping and the switch rail as an accessory are arranged on the same one surface side of the body, the space occupied by these can be reduced.

Third and Fourth Embodiments In the second embodiment, the unique piping ports 30, 31 are provided so as to open to the side surface 25a of the switch rail 25. As in the third embodiment shown in FIG. 19, the unique piping ports 30 and 31 may be provided so as to open to the end surfaces 25b and 25c of the switch rail 25, and the second piping ports 30 and 31 shown in FIGS. As in the fourth embodiment, the switch rail 25 may be provided so as to open to the bottom surface 25d.

The present invention has the following effects.

That is, in the fluid pressure actuator according to the first aspect of the present invention having the above-described structure, since the piping port is disposed on the inner side in the direction of relative movement of the moving part with respect to the mounting hole, It is not necessary to secure a space for installing the piping port on the outside, and therefore, the total length of the body can be shortened accordingly. Therefore, the fluid pressure actuator can be downsized.

Further, the present invention having the above-mentioned structure is described in claim 2 of the present invention.
Similarly, in the fluid pressure actuator according to the above, since the piping port is disposed inside the mounting portion in the relative movement direction of the moving portion, it is necessary to secure a space for installing the piping port outside the mounting hole. Therefore, the overall length of the body can be shortened accordingly. Therefore, the fluid pressure actuator can be downsized. In addition, in the fluid pressure actuator according to the second aspect, since the tap for attaching an accessory is disposed further inside than the piping port, the tap is provided on the body in addition to the mounting hole and the piping port. Even so, the overall length of the body does not increase.

In addition to the above, in the fluid pressure actuator according to the third aspect of the present invention having the above structure,
The switch rail attached to one side of the body is provided on the same side of the body because the switch rail as an accessory attached to the body with a tap has a unique piping port leading to the piping port provided on the body. Compressed air can be supplied from a unique piping port provided on the switch rail to a cylinder inside the body via a piping port provided on the body, even in the case where the pipe overlaps with the piping port. Therefore, it is possible to complete the connection of the pipe and the attachment of the switch rail as an accessory on one surface of the body, thereby making it possible to prepare a pipe connection operation and an accessory attachment operation. In addition, since the piping and the switch rail as an accessory are arranged on the same one surface side of the body, the space occupied by these can be reduced.

[Brief description of the drawings]

FIG. 1 is a plan view of a fluid pressure actuator according to a first embodiment of the present invention.

FIG. 2 is a front view of the fluid pressure actuator.

FIG. 3 is a rear view of the fluid pressure actuator.

FIG. 4 is a left side view of the fluid pressure actuator.

FIG. 5 is a right side view of the fluid pressure actuator.

FIG. 6 is a sectional view taken along line AA in FIG. 2;

FIG. 7 is a sectional view taken along line BB in FIG. 4;

FIG. 8 is a plan view of a fluid pressure actuator according to a second embodiment of the present invention.

FIG. 9 is a front view of the fluid pressure actuator.

FIG. 10 is a front view showing a state where a switch rail is removed from the fluid pressure actuator.

FIG. 11 is a left side view of the fluid pressure actuator.

FIG. 12 is a right side view of the fluid pressure actuator.

FIG. 13 is a sectional view taken along line CC in FIG. 9;

14 is a sectional view taken along line DD in FIG. 9;

FIG. 15 is a plan view of a fluid pressure actuator according to a third embodiment of the present invention.

FIG. 16 is a front view of the fluid pressure actuator.

FIG. 17 is a left side view of the fluid pressure actuator.

FIG. 18 is a right side view of the fluid pressure actuator.

19 is a sectional view taken along line EE in FIG. 16;

FIG. 20 is a plan view of a fluid pressure actuator according to a fourth embodiment of the present invention.

FIG. 21 is a front view of the fluid pressure actuator.

FIG. 22 is a bottom view of the fluid pressure actuator.

FIG. 23 is a left side view of the fluid pressure actuator.

FIG. 24 is a right side view of the fluid pressure actuator.

FIG. 25 is a sectional view taken along line FF in FIG. 21;

FIG. 26 is a plan view of a fluid pressure actuator according to a conventional example.

FIG. 27 is a front view of the fluid pressure actuator.

FIG. 28 is a rear view of the fluid pressure actuator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fluid pressure actuator 2 Fixed part 3 Body 3a, 13a, 13d Plane 3b, 3c, 13b, 13c, 25a Side 3d, 25d Bottom 4 Cylinder 5, 6 Piston 7, 8 Cylinder chamber 9, 10 End cover 11 Rail 12 Moving Part 13 Table 14 Connecting member 15 Hole 16 Space 17, 18 Piping port 19, 22 Tap 20, 21 Mounting hole 23 Long hole 24 Round hole 25 Switch rail 25b, 25c End face 26 Mounting part 27 Mounting groove forming part 28 Mounting screw 29 Hole 30, 31 Unique piping port 32 Sealing member 33 Mounting groove 34 Magnetic proximity switch 35 Magnet

Claims (3)

[Claims] 1. A compressed air is supplied to a cylinder (4) provided in a fixed part (2) to move a moving part (12) to the fixed part (2).
A plurality of mounting holes (20) and (21) opened on one surface of a body (3) constituting the fixed portion (2), and a plurality of mounting holes (20) and (21) orthogonal to the one surface. Piping ports (17) and (18) that are open on the surface to be connected, and the piping ports (17) and (18) are provided with the mounting holes (20).
A fluid pressure actuator, which is arranged on the inner side in the relative movement direction of the moving part (12) than (21). 2. A compressed air is supplied to a cylinder (4) provided in a fixed part (2) to move a moving part (12) to the fixed part (2).
A plurality of mounting holes (20) and (21) opened on one surface of a body (3) constituting the fixed portion (2), and a plurality of mounting holes (20) and (21) orthogonal to the one surface. A piping port (17) (18) opening on a surface to be connected, and a tap (19) for attaching an accessory mounted on the same surface as the piping port (17) (18); (18) is the mounting hole (20)
The tap (19) is arranged further inside than the piping ports (17) and (18), while being arranged further inside than the moving part (12) in the relative movement direction of the moving part (12). And a fluid pressure actuator. 3. The hydraulic actuator (1) according to claim 2, wherein:
, Wherein the accessory attached to the body (3) by the tap (19) is a switch rail, and the switch rail is provided with a unique piping port that communicates with a piping port provided on the body. Fluid pressure actuator.