JP2576188Y2 - Mounting device for moving position detection sensor - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to a method for detecting the movement of a linearly moving sliding body such as a piston of a fluid cylinder or a parallel gripper of a chuck device by a position detecting sensor.
The present invention relates to a moving position detecting sensor mounting device for supporting the position detecting sensor slidably along a moving direction of a sliding body, adjusting the position to a desired position, and then fixing the adjusted position.

[0002]

2. Description of the Related Art For example, a movement of a piston of a fluid cylinder that moves linearly is detected by a position detection sensor, and a drive device of the fluid cylinder is controlled by a detection signal to stop the piston of the fluid cylinder at a desired position. Has been performed conventionally. In addition, the applicant first filed the application
As proposed in Japanese Patent No. 80750, the oscillating rotational motion of the oscillating actuator is converted into a rectilinear reciprocating motion via a power conversion transmitting unit and transmitted to the arm opening / closing mechanism, which is attached to the arm opening / closing mechanism and the distal end thereof. There is a chuck device that grips and separates a work by changing the opening degree of a parallel gripper provided in a work. In this chuck device, in order to set the degree of opening of the parallel gripper as desired so as to conform to the width and shape of the work, for example, the movement of the movable member in the arm opening and closing mechanism linked with the parallel gripper is detected by a position detection sensor. It is necessary to detect and control the drive of the swing actuator by the detection signal. The mounting device of the moving position detecting sensor of the present invention is a mounting device of the moving position detecting sensor for detecting the movement of a linearly moving sliding body such as the piston of the fluid cylinder or the parallel gripper of the chuck device.

FIGS. 1 to 3 show a conventional apparatus for mounting a movement position detection sensor to a fluid cylinder. As shown in these figures, a channel-shaped guide having a lip groove-shaped cross section as shown in FIG. 1 is provided in a cylinder tube 3 or a cylinder tube 4 on which a piston 1 or a piston 2 that moves linearly in a cylinder chamber is mounted. The member 5 is externally attached to the cylinder tube 3 or the cylinder tube 4 is notched as shown in FIG. 3 to form a guide member 6 having a lip groove-shaped cross section. The sensor 7 is attached. As the position detection sensor 7, a proximity sensor such as a proximity switch, a reed switch, and a contactless switch is used. The guide members 5, 6 are provided in parallel along the moving direction of the pistons 1, 2, and the position detection sensor 7 mounted at a desired position of the guide members 5, 6 has a detection surface. 7a detects a detection piece (not shown) such as a permanent magnet attached to the pistons 1 and 2 in the cylinder tube, and this detection signal is taken out via a lead wire 7b. The extracted detection signal is supplied to, for example, a control device for driving the fluid cylinder, and is used for setting a stop position at which the drive of the fluid cylinder is stopped, or by a projecting tip of the piston 1 or the piston 2 of the fluid cylinder. It is given to the control device of the controlled member to be pressed and used to adjust the contact timing with the controlled member.

The position detecting sensor 7 used as described above
Are slidably supported via mountings on the guide members 5 and 6 so that the guide members 5 and 6 can be set at an arbitrary position along the moving direction of the pistons 1 and 2, and after being adjusted to a desired position. Need to be able to fix. For this purpose, as shown in FIG. 2, a screw 8 is inserted through a mounting hole 7c which is conventionally formed so as to penetrate the position detection sensor 7, and the screw 8 is housed in the guide member 5 (6). When the screw is engaged with the plate-shaped nut 9 and the fixing device is tightened by the screw 8 and the plate-shaped nut 9, the position detection sensor 7 is clamped and fixed at a desired set position, and the fixing device is loosened. Thus, the position detection sensor 7 can be slidably supported at a desired set position along the guide member.

[0005]

However, the above-mentioned conventional mounting apparatus has the following problems. The plate nut 9 is accommodated in the guide member 5 (6), but cannot be screwed with the screw 8 in this state. Therefore, as shown in FIG. The nut 9 is temporarily fixed, and the guide member 5 is held in a state where the position detecting sensor 7 and the plate nut 9 are separated from each other.
It must be inserted from the side end of (6),
The mounting work becomes complicated. Further, even when the screw 8 is most protruded into the guide member 5 (6), the screw 8 cannot be too long because its tip does not contact the bottom surface of the lip groove, so that the mounting position of the position detection sensor 7 is set. When the screw 8 is loosened to the plate nut 9 in order to change the diameter, the plate nut 9 may easily fall off,
In the case of dropping, the plate nut 9 must be taken out through the side end of the guide member 5 (6), and must be restarted from the above-mentioned temporary fixing. Further, when the position detecting sensor 7 is moved along the guide member 5 (6) with the mounting fixture loosened, the plate-like nut 9 in the guide member 5 (6) has a corner portion with a side wall surface of the lip groove. To the position detection sensor 7
May not be able to move smoothly.
Therefore, an object of the present invention is to provide a mounting device for a moving position detection sensor that can solve such a problem of the related art.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, in the mounting device for a moving position detecting sensor according to the present invention, a cross-sectional shape provided in parallel with the moving direction of a sliding body that moves linearly has a lip groove. Guide member, a nut member housed in the guide member, a position detection sensor attached to the upper surface of the guide member for detecting the movement of the slide at a desired position, and a screw attached to the nut member. And a screw member forming a fixture in cooperation with the nut member. When the fixture is tightened, the position detection sensor is clamped and fixed at a desired set position along the guide member. In a mounting device for a movement position detection sensor that slidably supports the position detection sensor at a desired setting position along the guide member when the nut member is relaxed, the nut member is provided with a female screw. A mounting plate housed in the guide member, one end of which is mounted on the mounting plate, and the other end of which is projected from the upper surface of the guide member and is provided at an opening edge of the guide member to prevent falling off. And a flange portion.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a mounting device for a moving position detecting sensor according to the present invention will be described in detail with reference to the embodiments shown in FIGS. In this mounting apparatus, a guide member 11 is formed in parallel with a fixed member 10 such as a cylinder tube on which a sliding body (not shown) such as a piston that moves linearly is mounted, along a moving direction X of the sliding body. , And the bottom surface thereof is attached to the fixing member 10 via the countersunk screw 12. The guide member 11 is formed in a lip groove shape in cross section, and a nut member 13 constituting one of the attachments is mounted on the guide member 11. The nut member 13 is attached to the mounting plate 1 on which the female screw 14 is formed.
5 and T-shaped flanges 16, 16, each of which is vertically erected from both ends thereof, to prevent the attachment plate 15 from falling from the side end of the guide member 11 into the lip groove. When housed, each flange 16 projects from the upper surface of the guide member 11 and spans the opening edge thereof. The height of the nut member 13 in this erected state is set in advance so that the bottom surface of the mounting plate 15 is slightly raised from the bottom surface of the lip groove of the guide member 11.

A position detecting sensor 17 for detecting the movement of the sliding body at a desired position is attached to the upper surface of the guide member 11 on the opening side. The position detecting sensor 17 has a detecting surface 17a and a lead wire 17b. And a through hole 17c. When mounting the position detection sensor 17, first, the position detection sensor 17 is connected to the nut member 13 described above.
And is placed on the upper surface of the guide member 11 so that the through hole 17 c is aligned with the female screw 14 of the mounting plate 15. Next, when the screw 18 constituting the other of the fixture is inserted into the through hole 17c and screwed with the female screw 14, the state shown in FIG. 5A is obtained. In this state, when the outer surface of each flange portion 16 is gripped with a finger and slid in the longitudinal direction in which the guide member 11 extends, the position detection sensor 17 is moved together with the nut member 13. Since the flange portion 14 of the nut member 13 is slidably guided along the guide member 11 and the mounting plate 15 is moved in parallel while being held horizontally, the position detection sensor 17 can be moved smoothly. After the position detection sensor 17 has been set to a desired position on the guide member 11 which is suitable for the detection of the sliding body, the mounting plate 1
When the screw 18 screwed into the female screw 14 is tightened, the entire nut member 13 is pulled upward as shown in FIG. 5B, and the upper surface of the mounting plate 15 contacts the inner surface of the lip groove of the guide member 11. The guide member 11 is fastened to the set position in the contact state.

[0009]

As is clear from the above embodiments, the apparatus for mounting a movement position detecting sensor according to the present invention solves the problems of the prior art and has the following effects. The nut member, which constitutes one of the mounting members, is mounted independently with the guide member being supported via a collar for preventing falling off, so that the position detection sensor is not temporarily fixed in advance as in the related art. Can be performed, and even if the screw is loosened, the mounting plate housed in the guide member does not fall off, and the mounting operation becomes easy and reliable. Also, if the position detecting sensor is moved together with the flange of the nut member while holding the fitting loosened, the flange is slidably guided along the guide member and the mounting plate in the lip groove is Since the position detection sensor is moved in parallel in the horizontal holding state, the position detection sensor can be moved smoothly.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a mounting device for a moving position detection sensor according to a conventional example.

FIG. 2 is a sectional view of a main part of FIG.

FIG. 3 is an exploded perspective view showing a mounting device for a moving position detection sensor according to another conventional example.

FIG. 4 is an exploded perspective view showing an apparatus for mounting a movement position detection sensor according to an embodiment of the present invention.

FIG. 5 is a cross-sectional view of a main part of the mounting device of the moving position detection sensor according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Fixing member 11 Guide member 12 Countersunk screw 13 Nut member 14 Female screw 15 Mounting plate 16 Flange part 17 Position detection sensor 18 Screw X Moving direction

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F16B 37/04

Claims (1)

(57) [Scope of request for utility model registration] 1. A guide member having a lip groove-shaped cross section provided in parallel with the moving direction of a sliding body that moves linearly, a nut member housed in the guide member, and a movement of the sliding body. A position detection sensor attached to the upper surface of the guide member for detecting at a desired position; and a screw member screwed to the nut member and cooperating with the nut member to form a fixture. When the tool is tightened, the position detection sensor is sandwiched and fixed at a desired set position along the guide member, and when relaxed, the position detection sensor is slidably supported at a desired set position along the guide member. In the mounting device for the moving position detection sensor, the nut member includes: a mounting plate having a female screw formed therein; and T-shaped flanges vertically erected vertically from both ends of the mounting plate. The nut member allows the mounting plate to be accommodated in the guide member, and the flanges to extend between the opening edges of the guide member. The position detection sensor is inserted between the flanges. The nut member is attached to the nut member via a screw that is screwed into the female screw of the mounting plate. When the screw is loosened, the nut member is held between the opening edges of the guide member in a manner prevented from falling off, and the position of the nut member is reduced. The detection sensor is slidably supported within the moving range of the sliding body along the guide member, and when the screw is tightened, the nut member is provided between the mounting plate and each of the flanges. An attachment device for a movement position detection sensor, wherein the attachment device is fixed to a desired setting position in a manner to hold an opening edge.