JPS6011286Y2 - Equipment mounting device in fluid pressure cylinder - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for integrally assembling a proximity switch or the like as a means for detecting the operating position of a piston in a hydraulic, pneumatic, or other fluid pressure cylinder. In particular, the present invention provides a device that can firmly mount equipment such as a proximity switch using a tie bolt for tightening a cylinder cover in a fluid pressure cylinder.

Conventional device mounting devices surround the cylinder tube of a hydraulic cylinder with a support band, tighten this band with a fastener, and attach the device using this support band. After long-term use, the band that tightens the cylinder tube number loosens, causing problems such as the equipment wobbling or the installation position of the equipment shifting. In addition to requiring a large number of parts, the cost was high and impractical.

In addition, there is a conventional device mounting device in which two tie bolts are sandwiched between brackets, and the device is inserted into the bracket and fixed in place, but this also requires a bracket for each diameter of the cylinder tube. However, there were disadvantages such as a large number of parts, large size, and heavy weight.

The purpose of the present invention is to eliminate the inconveniences of the conventional equipment mounting devices as described above. A square groove is provided to fit the tie bolt for tightening the cover, and the other side is used as a flat surface for mounting the equipment, and a set bolt is screwed into the main body of the device so as to pass through the square groove. By pressing the tie bolt fitted into the square groove with a set bolt, the tie bolt is fixed in line contact with the inner wall surface of the square groove.

One embodiment of the present invention will be described below based on the drawings.
In the figure, 1 is the cylinder tube of the fluid pressure cylinder, 2
3 is a cylinder cover attached to opposite ends of the cylinder tube 1 (one cylinder cover 2 is a cylinder rad cover, the other cylinder cover 2 is a rond end cover), 3 is a cylinder cover 2 that is attached to both opposite ends of the cylinder tube 1; Tighten the tie bolts.

Reference numeral 4 denotes a deformed polygonal prism-shaped device body constituting the equipment attachment device A according to the present invention, which is formed by extrusion molding or casting molding of aluminum material. A square groove 5 is provided along the entire length of the device main body 4, and the other side surface of the device main body 4 is a flat surface 4b for mounting a device B such as a proximity switch.

Reference numeral 6 denotes a screw hole for screwing a set bolt, which is bored from the side surface of the device main body 4 opposite to the flat surface 4b and opened in the side wall surface 5a in the square groove 5, and a plurality of screw holes 6 are provided. , 7 are set bolts screwed into each screw hole 6.

Reference numeral 8 indicates device mounting screw holes provided at a plurality of locations on the device mounting flat surface 4b.

To assemble the device mounting device A having the above-described configuration, the device main body 4 is brought close to the tie bolt 3 from the state shown in FIG. While tightening the set bolt 7 screwed into the screw hole 6 for screwing the set bolt, its tip is thrust into the square groove 5 to press the tie bolt 3 in the square groove 5, thereby as shown in FIG. Then, the tie bolt 3 is pressed and fixed to the side wall surface 5b and bottom wall 5C of the square groove 5 in line contact with each other.

In this way, the device main body 4 connects the tie bolts 3 to 3 on the circumference.
(i.e., the contact point X with the side wall surface 5b and the bottom wall surface 5c,
Since the device body 4 is clamped and crimped at three contact points (Y and contact point 2 with the set bolt 7), the device main body 4 is firmly fixed to the tie bolt 3.

In this case, the mounting position or mounting angle of the device main body 4 can be adjusted by loosening the set bolt 7 appropriately and sliding the device main body 4 against the tie bolt 3 in its axial direction or rotating it around its axis. Bye.

In addition, before installing the device B such as a proximity switch to the tie bolt 3 of the device mounting device A mentioned above, screw the mounting screw 9 on the device B side into the screw hole 8 of the device mounting flat surface 4b of the device main body 4. The installation is fixed by inserting the

FIG. 3 shows an example in which two device mounting devices A as described above are installed on the tie rods 3, 3 of a fluid pressure cylinder. One device A is attached to one end of the tie rod 3.
The other device A is attached to the other end of the other adjacent tie rod 3, and these devices A, A are arranged so as to be inclined in directions facing each other.

As explained above, the device mounting device of the present invention has a rectangular groove in which a tie bolt for tightening the cylinder cover is loosely fitted on one side of the deformed polygonal columnar device body, and also allows the side surface to be used as a flat surface for device mounting. A set bolt is screwed onto the main body of the device, and the set bolt presses the tie bolt loosely fitted into the square groove, thereby fixing the tie bolt in line contact with the inner wall surface of the square groove. from,
First of all, the above-mentioned structure of the device body allows the device body to have a sufficient section modulus, allowing the set bolt to be tightened with a large torque, and especially since the inner wall surface of the square groove is pressed against the tie bolt in a line contact state. This has the great advantage of being able to obtain a large supporting force, and thus allowing the main body of the device to be fixed very firmly and reliably to the tie bolt.

Furthermore, since the structure is simple, the number of parts is small, and extrusion molding of light metal such as aluminum is possible, there is a great advantage that a structurally solid, compact, and lightweight device mounting device can be provided at a low cost.

Another advantage of the mounting device of the present invention is that the mounting position can be easily adjusted by simply loosening the set bolt and sliding or rotating the main body of the device on the tie bolt.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the device mounting device according to the present invention, and FIG. 2 is a sectional view of the same in the assembled state.
FIG. 3 is a perspective view showing the state of use. 1... Cylinder tube, 2... Cylinder cover, 3... Tie bolt, 4...
・Device body, 4b...Flat surface for equipment installation, 5.
...Square groove, 5a*5b...Side wall surface of square groove 5, 5c...Bottom wall surface of square groove 5, 7...
Set bolt, A...Equipment mounting device, B...
···device.

Claims (1)

[Scope of utility model registration request] A square groove is provided on one side of the deformed polygonal columnar device body to fit into a tie bolt for tightening the cylinder cover of a fluid pressure cylinder, and the other side is used as a flat surface for mounting equipment. The set bolt is screwed so as to pass through the square groove, and the set bolt presses the tie bolt fitted into the square groove, thereby fixing the tie bolt in line contact with the inner wall surface of the square groove. Equipment mounting device for a fluid pressure cylinder.