Method for repairing damaged threads of outer hexagon bolt

Abstract

The invention discloses a method for repairing damaged threads of an outer hexagon bolt. The method comprises the following steps that A, the hexagon bolt with the threads needing to be repaired is placed on a fixing plate, a screw rod of the bolt is perpendicular to the fixing plate, the head of the bolt makes contact with the fixing plate, the side face of a hexagon prism on the head of the boltmakes contact with the side face, close to a movable block, on a fixed block, and an included angle alpha coincides with an included angle on the prism on the head of the bolt; B, a driving device isstarted, the movable block is made to gradually close to the fixed block till the bolt is fixed through the movable block and the fixed block; and C, a planing tool is used for planing away the damaged threads at the tail end of the screw rod of the bolt. By using the method for repairing the bolt with the damaged threads, the labor intensity of workers is lowered, enough fixing force is provided, and therefore workers can smoothly complete bolt repair work.

Description

technical field [0001] The invention relates to the mechanical field, in particular to a method for repairing damaged hex bolt threads. Background technique [0002] A bolt is a mechanical part, a cylindrical threaded fastener with a nut. A bolt is a type of fastener consisting of a head and a screw rod, which needs to be matched with a nut to fasten and connect two parts with through holes. This connection form is called bolt connection. Since the two parts can be separated by unscrewing the nut from the bolt, the bolt connection is a detachable connection. [0003] There are three types of bolts: A, B, and C. The first two are refined bolts, less used. Generally speaking, bolts refer to C-level ordinary bolts. In some temporary connections and connections that need to be disassembled, C-level ordinary bolts are commonly used. Common bolts commonly used in building structures are M16, M20, M24. Some rough bolts in the mechanical industry may have a relatively large d...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for repairing damaged hexagonal bolt threads, which solves the problem of fixing the head of the bolt by hand when cutting off the damaged thread at the end of the bolt shank, which not only increases the labor intensity of the workers, but also increases the holding strength. When it is not enough, the bolt will be taken away by the cutting force, so that the repair work of the bolt cannot be successfully completed

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