JP2570369Y2 - Cylinder device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylinder device such as a pneumatic cylinder or a hydraulic cylinder, and more particularly, to a position detector for detecting an operating position of a piston housed in a cylinder body on an outer wall of the cylinder body. The present invention relates to a fixed cylinder device.

[0002]

2. Description of the Related Art Conventionally, in various devices such as machine tools and industrial machines, cylinder devices such as pneumatic cylinders and hydraulic cylinders are frequently used, and are housed in the cylinder body on the outer wall of the cylinder body of the cylinder device. It is widely practiced to fix a position detector for detecting an operating position of a piston to be operated, and to control the apparatus by a signal from the position detector.

On the other hand, in recent years, miniaturization of automated machinery and the like,
A cylinder device having a cylinder body having a quadrangular outer shape, which is relatively high in density and relatively easy to make compact and manifold, is frequently used. The attachment of the position detector to the cylinder body of such a cylinder device is performed, for example, by referring to FIG.
As shown in FIG. 10, a detector mounting groove 13 is formed on the outer wall of the cylinder body 11 by extrusion or the like,
With the position detector 15 disposed in the detector mounting groove 13, the fixing screw 21 screwed into the screw hole 17 formed in the cylinder main body 11 is rotated, and the tip of the fixing screw 21 causes the spacer 23 to move. This is performed by pressing the position detector 15 against the bottom surface 25 of the detector mounting groove 13 through the interface.

In this cylinder device, the position detector 15 is provided with an indicator light 27 which is turned on when the piston rod 26 is at the detection position.
5, a lead wire 29 is connected.

[0005]

However, in such a conventional cylinder device, the position detector 1 is provided in the detector mounting groove 13 in order to make the device compact and manifold.
5, the lighting of the indicator lamp 27 can be confirmed only from one predetermined direction.

The direction of the screw hole 17 for the fixing screw 21 formed in the cylinder body 11 also becomes one direction as shown in FIG. 8 in consideration of machining and cost, and the position is detected only from this one direction. There is a problem that the position of the container 15 cannot be adjusted. In other words, when the interval between the cylinder device and other components such as a miniaturized and high-density automated mechanical device is narrow, the lighting of the indicator light 27 cannot be visually checked, and the operation of the cylinder device can be confirmed. In some cases, the fixing screw 21 cannot be rotated by a driver or the like, and it may be difficult to adjust the position of the position detector 15. In such a case, the position detector 15 may be difficult to adjust. Therefore, there is a problem that it is necessary to remove other devices, which makes maintenance difficult.

An object of the present invention is to solve the above-mentioned problems and to provide a cylinder device capable of greatly improving the maintainability compared with the prior art.

[0008]

The cylinder device according to the present invention has a detector mounting groove formed on the outer wall of the cylinder body along the axial direction of the cylinder body, and the detector mounting groove is provided in the cylinder body. In a cylinder device in which a position detector for detecting an operating position of a piston housed in the cylinder device is fixed, the detector mounting groove is formed by notching a corner of the cylinder body along an axial direction, and cutting. The one surface and the other surface of the missing groove are formed so as to be perpendicular to each other, and on one surface and the other surface of the detector mounting groove, along the axial direction ,
Solid One end of the constant member forms a locking groove that is inserted, the one end of the fixing member, the position detector, screwed a fixing screw for pressing on one or the other surface of the detector mounting groove It becomes.

[0009]

In the cylinder device of the present invention, the position detector is disposed in the detector mounting groove, and one end of the fixing member is inserted into one of the locking grooves at the position of the position detector, and the one end of the fixing member is inserted into the fixing member. The position detector is fixed to the cylinder body by screwing a fixing screw and pressing the position detector against one surface or the other surface of the detector mounting groove with the fixing screw.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; 1 and 2 show an embodiment of the cylinder device of the present invention. In the drawings, reference numeral 31 denotes a cylinder body of a pneumatic cylinder device. The cylinder body 31 has a rectangular cross section and is formed by, for example, extruding an aluminum alloy.

A piston rod 33 is inserted into the center of the cylinder body 31 in the axial direction.
The insertion end of 3 is connected to a piston (not shown) housed in the cylinder body 31. Also, the cylinder body 3
On one side surface, supply / exhaust ports 35 and 37 are formed.

In this embodiment, the detector mounting groove 39 is formed by notching the four corners of the cylinder body 31 along the axial length direction, and the other surface of the groove 41 is connected to one surface 41 of the notched groove. 43 is formed at a right angle. And
Locking grooves 45 and 47 are formed on one surface 41 and the other surface 43 of the detector mounting groove 39 along the axial direction.

The locking groove 47 has a fixing member 4 having an L-shaped cross section.
One end of 9 is inserted. A screw hole 51 is formed at one end of the fixing member 49, and a fixing screw 55 for pressing the position detector 53 against the one surface 41 of the detector mounting groove 39 is screwed into the screw hole 51. ing. In this embodiment, the position detector 53 includes, for example, a reed switch, and is configured to detect the position of the piston in response to a permanent magnet fixed to the piston (not shown).

The position detector 53 is provided with an indicator light 57 which lights up when the position of the piston is detected. The position detector 53 has a rectangular parallelepiped shape,
A lead wire 59 is connected to one end. further,
In this embodiment, in order to detect both stroke ends of the piston, the detector mounting grooves 39 at the upper two corners of the cylinder body 31 are used.
In addition, a pair of position detectors 53 are arranged so as to be shifted in the axial direction.

In the cylinder device configured as described above, the position detector 53 is mounted in the detector mounting groove 39 of the cylinder body 31 by the position detector 5 in the detector mounting groove 39.
3, one end of the fixing member 49 is inserted into the locking groove 47, and a fixing screw 55 is screwed to one end of the fixing member 49,
The fixing screw 55 is turned by a screwdriver or the like, and the position detector 53 is pressed against the one surface 41 of the detector mounting groove 39 by the fixing screw 55, and the position detector 53 is pressed into the cylinder body 31.
It is performed by fixing to.

Thus, the detector mounting groove 39 is formed by cutting off the corner of the cylinder body 31 along the axial direction, and
One side 41 and the other side 43 of the notched groove are formed so as to be perpendicular to each other, and are fixed to the one side 41 and the other side 43 of the detector mounting groove 39 in an L-shaped cross section along the axial direction. Locking grooves 45 and 47 into which one end of the member 49 is inserted, and a fixing screw for pressing the position detector 53 against one surface 41 or the other surface 43 of the detector mounting groove 39 at one end of the fixing member 49. Since the screw 55 is screwed, the maintainability can be greatly improved as compared with the related art.

That is, in the cylinder device of the above-described embodiment, for example, when the adjacent devices 61 are located on the left and right of the cylinder body 31, the position detector 53 is fixed as shown in FIG. The lighting of the lamp 57 can be reliably confirmed from above, and the fixing screw 55
Can be screwed from above, and maintenance is improved.

On the other hand, when the adjacent device is located above the cylinder body 31, the lighting of the indicator lamp 57 is surely confirmed from the left and right by fixing the position detector 53 as shown in FIG. And fixing screws 5
5 can be screwed from the left and right, and the maintainability is improved. In the cylinder device configured as described above, the detector mounting groove 39 and the locking grooves 45 and 47 can be simultaneously formed by extrusion molding. In addition, it is not necessary to form a screw hole for the fixing screw, and the manufacturing cost can be reduced.

FIGS. 4 and 5 show the direction of the display lamp 57 which can be viewed when the device or the like is adjacent to the oblique cross section direction, and the direction which can be adjusted by the driver by-. The upper case alphabetic character indicates the case of the present invention, the lower case alphabetic character indicates the conventional case, and FIG. 5 shows the case where the cylinder main body 31 is continuously provided. From these figures, it can be seen that in the cylinder device of the present invention, the visible indicator light 57
It can be seen that the direction of the arrow and the direction that can be adjusted by the driver are greatly increased as compared with the conventional case.

FIGS. 6 and 7 show another embodiment of the present invention. In this embodiment, both ends of the fixing member 63 are connected to each other.
The detector mounting groove 39 is inserted into locking grooves 45 and 47 formed on one surface 41 and the other surface 43. The fixing member 63 is inserted into the locking grooves 45 and 47 when the cylinder body 31 is inserted.
One end and the other end of the fixing member 63 from the end of the
5 and 47, and the fixing member 63 is moved to a predetermined position along the locking grooves 45 and 47.

Although the cylinder device thus constructed can obtain substantially the same effect as the embodiment shown in FIG. 1, in this embodiment, the locking grooves 45 and 47 are limited due to the size of the cylinder body 31. Even when the depth of
The fixing member 63 can be securely fixed to the locking grooves 45 and 47.

[0022]

As described above, the cylinder device of the present invention has the advantages that the maintainability can be greatly improved and the manufacturing cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a cylinder device of the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a front view showing a state where the position of a fixing member is changed in the cylinder device of FIG. 2;

FIG. 4 is an explanatory view for explaining a difference in maintainability between the cylinder device of the present invention and a conventional cylinder device.

FIG. 5 is an explanatory view for explaining a difference in maintainability between the cylinder device of the present invention and a conventional cylinder device.

FIG. 6 is a perspective view showing another embodiment of the cylinder device of the present invention.

FIG. 7 is a front view of FIG. 6;

FIG. 8 is a side view showing a conventional cylinder device.

FIG. 9 is a front view of FIG. 8;

FIG. 10 is an enlarged front view showing a detector mounting groove of FIG. 9;

[Explanation of symbols]

 31 Cylinder main body 39 Detector mounting groove 41 One surface 43 Other surface 45, 47 Locking groove 49 Fixing member 53 Position detector 55 Screw for fixing

Claims (1)

(57) [Scope of request for utility model registration] 1. A detector mounting groove is formed on an outer wall of a cylinder main body along an axial direction of the cylinder main body, and a position for detecting an operating position of a piston housed in the cylinder main body in the detector mounting groove. In a cylinder device in which a detector is fixed, the detector mounting groove is formed by notching a corner of the cylinder body along an axial length direction, and one surface of the notched groove is perpendicular to the other surface. thereby formed to be, on one surface and the other surface of the detector mounting grooves along the axial direction, the solid end of the constant member forms a locking groove which is inserted in one end of the fixing member And a fixing screw for pressing the position detector against one surface or the other surface of the detector mounting groove.