External clamp

Abstract

The invention provides an external-embrace type clamp. The external-embrace type clamp comprises a base, a cover body and a rotating disk, wherein the cover body is arranged on the base in a stacking mode and fixedly connected with the base, the rotating disk is clamped between the base and the cover body, a convex shaft is arranged in the center of the base, a clamping hole used for containing a part to be clamped is formed in the center of the convex shaft, the convex shaft is sleeved with the rotating disk, the rotating disk can rotate around the convex shaft, a through hole which can be used for a part to be clamped in the clamping hole to extend out is correspondingly formed in the center of the cover body, a plurality of clamping blocks are evenly arranged on the upper surface of the rotating disk, can rotate reversely along with the rotating disk to close up towards the center of the rotating disk so as to tightly clamp the part to be clamped, and rotate forwardly along with the rotating disk to slide to disperse away from the center of the rotating disk so as to release the part to be clamped, and sliding chutes used for the clamping blocks to slide are correspondingly formed in the cover body. The clamping blocks are provided with sliding shafts, slot holes used for the sliding shafts to slide respectively are evenly formed in the circumference of the surface of the rotating disk in an array mode, and the distance between one end of each slot hole to the center of the rotating disk is shorter than the distance between the other end of the slot hole to the center of the rotating disk. The external-embrace type clamp is small in number of parts, simple in structure, convenient to operate, accurate in location and low in manufacturing cost.

Description

technical field [0001] The invention relates to the technical field of clamps, in particular to an externally embraced clamp. Background technique [0002] In the process of mechanical manufacturing, cylindrical workpieces are often fixed and clamped with external clamps. External clamps are clamps that apply clamping force to the outer surface of the workpiece. Most of the external clamps are multi-jaw fixtures, but most of the existing multi-jaw fixtures need to manually lock the jaws to clamp the workpiece. This kind of fixture is not only inconvenient to operate, but also easily leads to inaccurate positioning of the workpiece. Although there are also some multi-jaw fixtures that clamp and position workpieces in an automated manner, such fixtures have complex structures and high manufacturing costs. Contents of the invention [0003] The purpose of the present invention is to overcome the defects of the prior art and provide an external clamp with convenient operatio...

AI Technical Summary

Problems solved by technology

Most of the external clamps are multi-jaw fixtures, but most of the existing multi-jaw fixtures need to manually lock the jaws to clamp the workpiece. This kind of fixture is not only inconvenient to operate, but also easily leads to inaccurate positioning of the workpiece

Although there are also some multi-jaw fixtures that clamp and position the workpiece in an automated way, the structure of this type of fixture is complex and the manufacturing cost is high.

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