Improved manufacturing method of self-centering fixture

1. Technical field:

2. The utility model relates to the technical field of fixture tooling equipment, and more specifically to an improved self-centering fixture.

Background technique:

4. The vise is a kind of fixture often used in processing. It is generally composed of a pliers body, a base, a guide nut, a screw, a jaw body, etc., usually equipped with movable pliers and fixed pliers, through the screw Drive connection with the movable pliers, so that the movable pliers are close to the fixed pliers, thereby realizing the function of the clamp.

5. A self-centering clamp with Chinese patent number 201921635240.3, which includes a base, a screw rod and two clamping blocks. The base is provided with a screw groove corresponding to the screw, and the screw is arranged on the screw. In the groove, the inner side wall of the base is provided with a wave-shaped sliding groove, the clamping block is provided with a sliding channel corresponding to the wave-shaped sliding groove, and both ends of the screw rod are provided with external threads with opposite lines, so The clamping block is provided with an internal thread corresponding to the external thread, the clamping block is provided with a first holding part and a second holding part, and the length of the first holding part is greater than that of the second holding part, so A convex strip is arranged between the first supporting part and the second supporting part, and more than one outwardly extending convex teeth are arranged on both sides of the convex strip. The base is a one-piece molding structure, and when in use, the wavy slide of the clamping block will move along the wavy slide. After a long time of use, the slide is easy to wear. At this time, the entire base needs to be Replacement, replacement cost is high, and the effect is poor.

6. Moreover, the screw rod is also rotated in the screw groove. After long use, the screw groove is easy to wear, and it is also directly formed on the base. At this time, the entire base can only be replaced, and the replacement cost is quite high.

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