Self-centering multi-axis linkage type internal expansion clamping mechanism and clamping method

Abstract

The invention provides a self-centering multi-axis linkage type internal expansion clamping mechanism and a clamping method. The self-centering multi-axis linkage type internal expansion clamping mechanism comprises a fixed seat, a mandrel, inserts, elastic pins, a fixed block, an elastic piece and an elastic pin pressing block, wherein a mandrel through hole is formed in the center of the mandrel, one end of the mandrel is fixed on the fixed seat, a plurality of insert mounting grooves are formed in the periphery of the mandrel, and elastic pin mounting grooves are formed in the insert mounting grooves; the inserts are detachably connected to the insert mounting grooves, and elastic pin moving grooves are formed in the inserts in a penetrating manner; the elastic pins penetrate through the elastic pin moving grooves and are arranged in the elastic pin mounting grooves, and elastic pin inclined surfaces are arranged at the sides, close to the mandrel through hole, of the elastic pins; the fixed block is detachably connected to the other end of the mandrel, and a blind hole is formed in the fixed block; the elastic piece is arranged in the blind hole, and the upper end of the elastic piece abuts against the fixed block; the elastic pin pressing block is located in the mandrel through hole and connected to the lower end of the elastic piece; and a pressing block inclined surface matched with the elastic pin inclined surfaces is arranged on the lower surface of the elastic pin pressing block. According to the internal expansion clamping mechanism, the elastic pins are stressed at the same time, the expansive force of the inner wall of a product is uniform, positioning is accurate, and the influence of the positioning size and precision of the product on detection is small.

Description

Technical field [0001] The present invention belongs to the field of clamping tooling, and in particular, the present invention relates to a self-specific cardiac multi-axis linkage inhibition clamping mechanism and clamping method. Background technique [0002] In the manufacturing industry, the product is often required to facilitate subsequent processing. Currently used clamps or locking mechanisms, such as manual clamping clamps, clips, splints, reforeon, various types of cylinders, valves, and the like. Since the product is inevitable in the front process, it is often unable to completely eliminate the gap errors from these dimensional tolerances, resulting in the product. The dimensional accuracy of the process. Inventive content [0003] In view of the above-described drawbacks of the prior art, the present invention proposes a self-pilot multi-axis-type inclusion clamping mechanism to secure the product by providing a plurality of slots on the mandrel of the inner swelli...

AI Technical Summary

Problems solved by technology

Due to the inevitable dimensional tolerance of the product in the previous process, when using these tooling to fix the product, it is often impossible to completely elimina

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