JPH11153107A - Fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixture exhibiting a high degree of work efficiency and workability, for positioning of a clamper adapted to clamp and unclamp a product and fastening the product, and reversely carrying out the operation together with only one working tool without manipulating the clamper by the hands. SOLUTION: A rubber retainer 3 on which a friction rubber element 4 is attached, is inserted onto the lower part of a fastening screw 5 extending through a hollow part in a clamper 2, and is then fixed to the screw 5 so as to apply a little pressure to the clamper 2. Further, the cylindrical part of the clamper 2 is inserted in a hollow part in a body 1, and a positioning pin 6 in the rotational direction of the clamper 2 is attached to the body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixture for fixing a product in machine tool processing.

[0002]

2. Description of the Related Art Conventionally, in machine tool processing, there has been a fixing tool comprising a product fixing clamper and a clamper tightening screw on a positioning jig for fixing a product at a fixed position.

[0003]

This has the following disadvantages. (A) When the product is fixed to the positioning jig and when the product is removed from the positioning jig, the operation of attaching and detaching the clamper of the fixing tool is performed manually, resulting in poor work efficiency. (2) When fixing the product to the positioning jig, workability is poor because the clamper of the fixture must be pressed at the product tightening position while holding the product with one hand while holding the product with the other hand. . The present invention has been made to eliminate these disadvantages.

[0004]

A clamping screw (5) is passed through the hollow portion of the clamper (2), and a rubber press (3) to which a friction rubber (4) is attached is passed from below the clamping screw (5), and the friction is removed. The clamper (2) is sandwiched between the rubber (4) and the head of the tightening screw (5), and the rubber retainer (3) is attached to the tightening screw (5) so that slight pressure is applied. And
A clamper (2), a fastening screw (5), and a rubber retainer (3) with a friction rubber (4), which are integrally assembled, are inserted into a hollow portion of the main body (1) which fits tightly with the cylindrical portion of the clamper (2). Positioning pin (6) for rotation operation of 2)
To the body (1). The present invention is a fixture configured as described above.

[0005]

Embodiments of the present invention will be described below. (B) L with a flat clamp plate protruding from the end of the hollow shaft
Pass the clamping screw (5) through the hollow part of the shaped clamper (2). (B) Attach friction rubber (4) to rubber holder (3). (C) Rubber clamp while holding the clamper (2) between the head of the tightening screw (5) passed through the clamper (2) and the rubber surface of the friction rubber (4) attached to the rubber retainer (3) and applying slight pressure Attach (3) to the tightening screw (5). (D) Insert the clamper (2) into which the tightening screw (5) the rubber presser (3) and the friction rubber (4) are incorporated into the hollow portion of the body (1) where the cylindrical portion of the clamper (2) fits snugly. (E) Positioning pin (6) for rotating the clamper (2)
Is attached to the main body (1) so as to enter the rotation stopping groove of the clamper (2). When the present invention is used in the above-described structure, a screw for inserting the fixing screw (5) of the fixing tool is opened in the positioning jig (9) so that the set screw and the tightening screw (5) match. Then, the fixture is attached to the positioning jig (9) with the fixture attachment screws (11). The product (10) is positioned on the positioning jig (9) to which the fixing tool is attached, and the tightening screw (5) is held with one hand and the tightening screw (5) is rotated. First, the clamper (2) is the product (1
Although it is out of the positioning range of 0), the clamper (2)
Is sandwiched between the head of the tightening screw (5) and the friction rubber (4) while applying pressure.
Due to the frictional force described above, the rotational movement starts in conjunction with the rotational movement of the tightening screw (5), rotates to the position of the positioning pin (6), and the rotational operation stops. When the rotation of the clamper (2) is performed by the positioning pin (6), the product (1
The fixture is attached to the positioning jig (9) so as to match the clamp location of (0). When the tightening screw (5) is further tightened, the clamper (2) is lowered to tighten and fix the product (10). When the clamper (2) is removed from the product (10) to release the fixation, the tightening screw (5) is rotated in the reverse direction to loosen it. When the clamper (2) is rotated in the reverse direction to the position of the positioning pin (6), the product ( The rotation operation is stopped outside the positioning range of 10). Further tightening screws (5)
When the clamp is loosened, the clamper (2) is pushed up by the rubber retainer (3) fixed to the tightening screw (5) and the product (1) is released.
Move away from 0).

[0006]

According to the present invention, when setting the product on the positioning jig, if the tightening screw of the fixing tool is started to be tightened with the work tool without manually setting the clamper on the product, the clamper is rotated according to the rotation of the tightening screw. The product can be rotated to the clamped position, lowered from that position to fix the product, and when releasing the fixation, the clamper is automatically released from the product in accordance with the rotation of the tightening screw, so that the work efficiency is extremely high. Further, since it is not necessary to operate the clamper by hand, it is possible to hold the tool with one hand and firmly support the product with the other hand, thereby improving workability. Further, since the tightening point of the product is always constant by the stopper of the clamper, the processing accuracy of the product is stabilized. As shown in FIG. 4, pressure is applied to the rubber presser (3) by a spring (7), a pin key (8) is attached to the tightening screw (5), and rotation of the tightening screw (5) is performed by the key (8). The structure which transmits to a rubber holder (3) may be sufficient.

[Brief description of the drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a side sectional view of the present invention.

FIG. 3 is a plan sectional view of the present invention.

FIG. 4 is a side sectional view showing another embodiment of the present invention.

FIG. 5 is a side sectional view of a usage example of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Clamper 3 Rubber holder 4 Friction rubber 5 Tightening screw 6 Positioning pin 7 Spring 8 Key 9 Positioning jig 10 Product 11 Fixing screw

Claims (1)

[Claims] (1) A clamping screw (5) is inserted into a hollow portion of a clamper (2). (B) Pass the tightening screw (5) through the rubber retainer (3) to which the friction rubber (4) is attached, sandwich the clamper (2) with the head of the tightening screw (5), and apply pressure to the clamper (2). Attach the rubber retainer (3) to. (C) Insert the cylinder portion of the clamper (2) into the hollow portion of the main body (1). (D) Attach the positioning pin (6) to the main body (1). A fixture having the above configuration.