JP2001138156A - Cylinder installation member, and cylinder unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an installation member to be applied to a front mount type clamp cylinder of which the rod cover back surface is set as an installation surface to a fixed side member to be installed in a side mount type. SOLUTION: A cylinder tube 1 of a front mount type clamp cylinder is engaged in a tube receiving hole 53 in this installation member 50, and a rod cover 6 is coupled with the installation member 50 by use of a bolt hole 19 in the rod cover 6. A cylinder unit comprising a cylinder integrated with the installation member 50 is placed on a fixed side member 100, and it is fixed by a tightening screw 66 in the perpendicular direction to a piston rod 7 by use of the bolt hole 58 in the installation member 50, thereby it is fixed to the fixed side member 100 in a side mount type.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylinder in which a mounting surface for a machine base or the like is formed on the back surface of a rod cover, and the piston cover is mounted on the machine base by using fastening bolts in the axial direction of the piston rod. The present invention relates to a cylinder mounting member for mounting a cylinder on a machine base from a direction orthogonal to an axis of a piston rod, and a cylinder unit including the mounting member and the cylinder.

[0002]

2. Description of the Related Art A conventional cylinder, for example, a clamp cylinder used for clamping a work or a pallet, includes a rod cover B provided at a front end of a cylinder tube A as shown in FIG. The rear surface is a mounting surface that extends radially outward from the outer periphery of the cylinder tube A, and is used by being mounted to the fixed side member 100 by a fastening bolt D in the axial direction of the piston rod C (such a mounting type is referred to as a front surface). The cylinder tube A1 is formed in a box (block) shape as shown in FIG.
There is a type in which a bolt hole is formed in the direction perpendicular to the axial direction of the piston rod C1 and is fixed to a fixed-side member with a fastening bolt D1 (this type of mounting is referred to as a side mount type). .

[0003]

Since these clamp cylinders have completely different mounting configurations in the past, as is apparent from FIGS. 7 and 8, there is little commonality in parts such as cylinder tubes and the like. Manufacturers that must provide any type of mounting in response to user requests have manufactured cylinders with such different mounting types quite separately. Therefore, the number of types of cylinders has increased, leading to an increase in parts management and manufacturing costs. An object of the present invention is to provide a cylinder mounting member that can be easily formed into a side-mount type cylinder by applying the cylinder to a so-called front-mount type cylinder having a mounting surface on the back surface of a rod cover. If the front mount type is prepared, the side mount type can be easily provided.

[0004]

In order to solve the above problems, in the cylinder mounting member of the present invention, one end of a cylinder tube is closed with a rod cover, and a piston rod projects from the rod cover. A mounting member used for a cylinder forming a mounting surface, comprising a tube receiving hole into which a cylinder tube is fitted, wherein one end surface in the longitudinal direction of the tube receiving hole is a rod cover fixing surface, and an outer side of the tube receiving hole. In the wall portion, a bolt hole is formed in a direction perpendicular to the cylinder tube axis, and a fixing surface to the fixed member attached to the fixed member is formed on a surface orthogonal to the rod cover fixing surface by the bolt hole. The surface to be fixed to the fixed side member is located outside the peripheral surface of the rod cover.

When this mounting member is mounted on the rod cover of a front mount type cylinder, the front mount type cylinder can be fixed to the fixed side member with fastening bolts from a direction orthogonal to the piston axis as a side mount type cylinder, By preparing a front mount type, you can easily select either the front mount or the side mount as the mounting form, reduce the number of cylinders and manage parts easily,
It leads to cost reduction.

A side pipe port is provided on a side face of the rod cover, and an end pipe port communicating with the side pipe port is opened on the mounting surface, and a rod cover fixing face is communicated with the end pipe port. A communication hole is formed, and a piping port communicating with the communication hole is opened on a surface fixed to the fixed member (claim 2). According to this,
A piping type can be selected from a side piping using a side piping port that the rod cover has in advance, and a piping type using a piping port that the mounting member has. It is preferable that a part of the outer circumference of the tube receiving hole is cut out, and a sensor mounting groove formed on the outer circumferential surface of the cylinder tube is located in the cutout portion. Even if a side mount type front mount type cylinder is attached to the fixed side member,
The sensor on the outer periphery of the cylinder tube can be visually checked from the outside through the cutout portion of the tube receiving hole, the operating state of the sensor can be confirmed, and the mounting position of the sensor can be easily adjusted. Further, the cylinder unit of the present application is a front mount type clamp cylinder in which one end of a cylinder tube is closed with a rod cover, a piston rod projects from the rod cover, and a mounting surface to a fixed side member is formed on a back surface of the rod cover. The cylinder tube is fitted into the tube receiving hole of the mounting member, and one end surface in the longitudinal direction of the tube receiving hole is abutted against the back surface of the rod cover, and the two are fixed to each other via a bolt hole formed in the rod cover. In the invention, a bolt hole is formed in an outer wall portion of the tube receiving hole in a direction perpendicular to an axis of the cylinder tube. The side mount type mounting can be easily performed based on the front mount type cylinder.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a front mount type clamp cylinder will be described. In FIG. 1, reference numeral 1 denotes a cylindrical cylinder tube made of aluminum extruded or cold drawn aluminum, and a sensor mounting groove on the outer periphery of a peripheral wall 1a outside the cylinder hole 5, as shown in FIG. 2, the peripheral wall 1a has a cross section in which four bolt through holes 3 and a fluid passage hole 4 are formed penetrating in the tube axis direction. The magnetically responsive sensor 110 is mounted in the sensor mounting groove 2 so as not to protrude radially outward from the outer peripheral surface of the cylinder tube 1. Reference numeral 6 denotes a rod cover, through which a piston rod 7 penetrates and projects outward. At the rear end of the piston rod 7, a piston 8 is provided integrally in the axial direction, and is fitted so as to slide in the cylinder hole 5 in the axial direction.
A permanent magnet 9 for detecting the piston position is attached to the piston 8. As shown in FIG. 2, the rod cover 6 has a substantially rectangular flange shape whose outer shape is further expanded outward in the tube radial direction than the outer shape of the cylinder tube 1, and is fitted into the cylinder hole 5 from the back surface 10. A short fitting shaft 11 protrudes. A portion of the back surface 10 that extends radially outward from the outer periphery of the cylinder tube 1 forms a mounting surface 12 for attachment to the fixed member 100 such as a mechanical base.

The rod cover 6 is provided with a pair of side piping ports 13a and 13b on the side surface 6a. The one side piping port 13a communicates with the front cylinder chamber P1 via a first communication passage 14a that opens at a rear end surface (a lower end surface in the figure) of the fitting shaft portion 11. The other side piping port 13b
Communicates with the rear cylinder chamber P2 via the second communication passage 14b, the fluid passage hole 4 of the cylinder tube 1, and the communication groove 16 of the head cover 15. In addition, end surface piping ports 17a and 17b communicating with the side surface piping ports 13a and 13b are opened in the mounting surface 12. On the back surface 10 of the rod cover 6, a female screw hole 18 having a predetermined depth and facing the bolt through hole 3 of the cylinder tube 1.
Are formed. On the front surface of the rod cover 6, a bolt hole 19 for mounting bolts to a fixed side member 100 such as a machine base is provided.

Rear end of cylinder tube 1 (lower end in the figure)
The head cover 15 is formed with a sensor insertion groove 20 for inserting and removing the sensor 110 from the axial direction corresponding to the sensor mounting groove 2 and a bolt hole 21 corresponding to the bolt through hole 3.

Between the back surface 10 of the rod cover 6 and the front end surface (upper end surface) of the cylinder tube 1 and between the head cover 1
Thin plate-like gaskets 30 and 31 are interposed between the cylinder tube 1 and the rear end surface (lower end surface) of the cylinder tube 1 as a sealing material. The gaskets 30, 31 are formed by sandwiching a thin metal plate (aluminum or steel plate) between seal plates made of an elastic rubber material or the like. The gasket 30 between the rod cover 6 and the cylinder tube 1 (FIG. 3)
Female thread hole 18, second communication passage 14b, end face piping port 17
a, 17b, and portions 18E corresponding to the bolt holes 19,
The cutouts 14bE, 17aE, 17bE, and 19E are fitted to the outside of the fitting shaft portion 11, so that not only the opposing surface (seal surface) of the cylinder tube 1 and the rod cover 6 but also the entire outer mounting surface 12 thereof. It has a size that spreads. The rod cover 6, the cylinder tube 1, and the head cover 15 pass four fastening bolts 32 from the bolt holes 21 of the head cover 15 with the gaskets 30, 31 interposed therebetween.
Through the bolt through hole 3, the external thread portion is screwed into the female screw hole 18 of the rod cover 6 and integrally fastened together to form a cylinder body, and the rod cover 6, the head cover 15 and the front and rear of the cylinder tube 1 are formed. The gaskets 30, 31 seal between the end faces. Such a front-mount type clamp cylinder is usually provided with fastening bolts 101 from a cylinder axial direction in a fixed side member 100 such as a machine or a jig base by using a bolt hole 19 of a rod cover 6.
Tightened.

Next, a description will be given of a mounting member 50 of the present application which is applied to such a front mounting type cylinder and is of a side mounting type. As shown in FIG. 4, the mounting member 50 includes a base wall portion 51 and left and right wall portions 52 continuously rising from the left and right sides thereof.
A tube receiving hole 53 into which the cylinder tube 1 fits is formed inside the tube. The tube receiving hole 53 has a shape in which a part (here, an upper portion) of the circumference thereof is cut out. One end surface of the tube receiving hole 53 of the mounting member 50 in the longitudinal direction is a rod cover fixing surface 55 for fixing the rod cover 6 of the front mount type cylinder, and a bolt hole 19 provided in the rod cover 6 is provided. A corresponding female screw hole 56 is provided, and in a state where the rod cover 6 is mounted using the female screw hole 56, the cutout portion 54 of the tube receiving hole 53 corresponds to the sensor mounting groove 2 on the outside of the tube 1. Position (FIG. 6). In the rod cover fixing surface 55, a communication hole 57 communicating with the end face piping ports 17a, 17b on the back of the rod cover 6 is provided.
a, 57b are formed.

The left and right outer wall portions 52 outside the tube receiving holes 53 are formed with bolt holes 58 extending in a direction (vertical direction) perpendicular to the cylinder tube axis. Base wall 51 perpendicular to the rod cover fixing surface 55
The lower surface is a fixing surface 59 to the fixed side member 100 attached to the fixed side member 100 by a bolt hole 58,
The fixing surface 59 is located outside (in FIG. 5, below) the side surface 6 b of the rod cover 6 when the cylinder is mounted. The fixing surface 59 has a pair of piping ports 60.
a, 60b are provided, and the pair of communication holes 57a, 5b are provided.
7b are communicated with each other via internal communication passages 61a and 61b.

The cylinder tube 1 of the clamp cylinder of the above-described front mount type is fitted into the tube receiving hole 53 with the mounting member 50, and the rod cover 6 is formed.
Of the fastening bolt 1 by using the bolt hole 19 of the rod cover 6 with the back surface 10 of the
01 is screwed into the female screw hole 56 of the rod cover fixing surface 55. As a result, the space between the rod cover fixing surface 55 and the mounting surface 12 of the rod cover 6 is sealed via the gasket 30, and the pair of end surface piping ports 17a, 17b on the back surface of the rod cover 6 and the rod cover fixing surface 55 are paired. Communicate with the communication holes 57a and 57b. In this manner, the cylinder unit in which the mounting member 50 and the cylinder are integrated is placed on the fixed-side member 100, and is fixed with the tightening bolt 66 from the direction orthogonal to the piston rod 7 using the bolt hole 58 of the mounting member 50. I do. As described above, by using the mounting member 50 of the present application, the clamp cylinder of the front mount type can be used as the fixed side member 1 in the side mount type.
00 can be fixed. Therefore, if a front-mount type cylinder is manufactured as the type of cylinder, either a front-mount type or a side-mount type can be selected.

The piping ports 60a and 60b opening to the fixing surface 59 of the mounting member 50 are fixed to the fixed side member 1 by an O-ring 67.
When the pressure fluid is supplied / discharged from the piping ports 60a, 60b opened to the fixing surface 59, the pressure fluid is connected to supply / discharge passages 68a, 68b formed in the fixed member 100. The side piping ports 13a and 13b are closed by plugs 70. Also, the side piping ports 13a, 13b
When the pressure fluid is supplied and discharged from the fixing member 50, the supply and discharge passages 68a and 68b are not formed in the fixed side member 100, and the fixing surface 5
9, the piping ports 60a and 60b
At 7 the space between the fixed side member 100 and the fixed side member 100 is sealed and closed.
By attaching the mounting member 50 in this manner, two types of piping, the side piping and the fixed surface side piping, can be selected, and the degree of freedom of the piping system can be increased.

When the mounting member 50 and the cylinder are mounted, the sensor mounting groove 2 is located in the notch portion 54 of the tube receiving hole 53, so that the operation state of the sensor 110 in the sensor mounting groove 2 can be visually checked (sensor operation). 110 normally has an indicator that lights up when operated by the permanent magnet 9 of the piston 8), and it is easy to externally adjust the mounting position of the sensor 110. Further, since the fixing surface 59 of the mounting member 50 is located outside (in the figure, below) the outer peripheral side surface 6b of the rod cover 6 in the cylinder mounting state, the fixing surface 59 of the fixed side member 100 does not interfere with the rod cover 6. Can be mounted on a flat surface. In this embodiment,
A piston (piston rod) is a cylinder that simply moves in and out in the axial direction when pressure fluid is supplied and discharged from a pair of supply and discharge ports. However, this type of operation involves an operation such as the piston rod turning when the piston moves in the axial direction. It may be a cylinder.

[0016]

As described above, the mounting member of the present invention enables the cylinder to be mounted in a side mount system in combination with a front mount type cylinder. As a result, the front mount type cylinder can be used. It is possible to meet the mounting request of the side mount type only by preparing it, and the number of cylinders can be reduced.If you are going to supply both front mount type and side mount type cylinders, reduce the number of parts This is advantageous in terms of manufacturing management and greatly contributes to cost reduction. Also, by combination with the front mount cylinder, you can select the side piping type using the side piping port of the front mount cylinder, or the fixed surface piping type of the mounting member of the present application, and manage the piping to be connected. The degree of freedom increases. Further, since the sensor on the outer periphery of the cylinder tube can be viewed from the outside with the mounting member mounted, the operating state of the sensor can be confirmed.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a front mount type clamp cylinder.

FIG. 2 is a II view of FIG.

FIG. 3 is a view showing a gasket on a rod cover side together with a mounting surface.

FIG. 4 is a perspective view of a mounting member.

FIG. 5 is a side view showing a state of being mounted in a side mount format by a mounting member of the present application.

FIG. 6 is a VI view of FIG. 5;

FIG. 7 is a front mount type clamp cylinder.

FIG. 8 is a side mount type clamp cylinder.

[Explanation of symbols]

 1 Cylinder tube 2 Sensor mounting groove 6 Rod cover 6b Peripheral surface of rod cover 7 Piston rod 10 Rear surface of rod cover 12 Mounting surface 13a, 13b Side piping port 17a, 17b End piping port 50 Mounting member 53 Tube receiving hole 53 54 Notch 55 Rod cover fixing surface 55 57a, 57b Communication hole 58 Bolt hole 59 Fixing surface 60a, 60b Piping port 100 Fixed side member

Claims (4)

[Claims] 1. A mounting member used for a cylinder having one end of a cylinder tube closed with a rod cover, a piston rod protruding from the rod cover, and a rear surface of the rod cover forming a mounting surface for a fixed-side member. A tube receiving hole into which a cylinder tube is fitted, one end surface in the longitudinal direction of the tube receiving hole is used as a rod cover fixing surface, and a bolt hole is formed in an outer wall portion of the tube receiving hole in a direction orthogonal to the cylinder tube axis. The fixing surface to the fixed member attached to the fixed member by the bolt hole is formed on a surface orthogonal to the rod cover fixing surface, and the fixing surface to the fixed member is outward from the rod cover peripheral surface. A mounting member for a cylinder, wherein the mounting member is located at 2. A side pipe port is provided on a side face of the rod cover, an end pipe port communicating with the side pipe port is open on the mounting surface, and the rod cover fixing face is provided with the end pipe port. 2. The cylinder mounting member according to claim 1, wherein a communication hole communicating with the communication hole is formed, and a piping port communicating with the communication hole is opened on a surface fixed to the fixed member. 3. A tube receiving hole, wherein a part of an outer periphery is cut out, and a sensor mounting groove formed on an outer peripheral surface of a cylinder tube is located in the notch.
Or the mounting member of the cylinder according to 2. 4. The cylinder tube of a front mount type clamp cylinder in which one end of a cylinder tube is closed with a rod cover, a piston rod projects from the rod cover, and a mounting surface for a fixed side member is formed on the back surface of the rod cover. Is fitted into the tube receiving hole of the mounting member, and one end face in the longitudinal direction of the tube receiving hole and the back surface of the rod cover are abutted to each other via a bolt hole formed in the rod cover to fix the two together. A cylinder unit, wherein a bolt hole is formed in an outer wall portion of the tube receiving hole in a direction perpendicular to the cylinder tube axis.