Device for eliminating defects at the head/tail parts of threaded fastener

Abstract

The invention provides a device for eliminating defects at the head / tail parts of a threaded fastener, comprising a guide pulley handle, a guide pulley, a pneumatic grinder and a feeding mechanism, wherein the guide pulley handle is fixedly connected with one side of the external circle of the guide pulley, and the other side thereof corresponding to the guide wheel handle is fixedly connected with the feeding mechanism; and the pneumatic grinder is connected to the corresponding position of the feeding mechanism. When in use, the feeding mechanism is used for controlling the radial feeding of the pneumatic grinder, and the compressed air drives the pneumatic grinder to rotate axially to finish the elimination of the defects at the head / tail parts of the threaded fastener. The invention has the advantages of simple structure, convenient operation, high efficiency and good processing quality, and is suitable for processing equipment for eliminating defects at the head / tail parts of threaded fasteners for large-scale equipment such as nuclear power projects and the like.

Description

technical field [0001] The invention relates to a device for removing head and tail defects of threaded fasteners, which is suitable for removing head and tail defects of large threaded fasteners used in nuclear power engineering, and belongs to the technical field of mechanical processing equipment. Background technique [0002] Threaded fasteners, whether it is cutting or cold rolling extrusion processing, will form irregular sharp corners, half teeth and other thread profile defects. If the above defects are not removed, when the threaded fasteners are screwed in during use, When unscrewed, the sharp corners will be bumped, scratched, and iron filings will be generated, forming rotten teeth, which will seriously affect the matching accuracy of the thread. The modern industry puts forward high-precision and high-demand bolts and nuts in the technical requirements. The sharp angles at both ends of the thread are removed according to the standard within the range of 270° to ...

AI Technical Summary

Problems solved by technology

[0002]Threaded fasteners, whether it is cutting or cold-rolling extrusion processing, will form thread profile defects such as irregular sharp corners and half teeth at the head and tail. The above defects If it is not cleaned, when the threaded fasteners are screwed in and out during use, the sharp corners will be bumped, bruised, iron filings will be generated, and rotten teeth will be formed, which will seriously affect the matching accuracy of the threads.

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