Bolt maintenance method capable of improving working efficiency

Abstract

The invention discloses a bolt maintenance method capable of improving working efficiency. The bolt maintenance method capable of improving the working efficiency comprises the following steps: (A) ahexagonal bolt needing to maintain a screw thread is placed on a fixed plate; (B) a bolt is shifted until the side surface of a hexagonal prism at the head part of the bolt is contacted with the sidesurface, near a movable block, of a fixed block; and an included angle alpha on the fixed block is overlapped with an included angle on a prism of the bolt; (C) a driving device is started until the bolt is fixed by the movable block and the fixed block; (D) a support arm is rotated until limiting plates are all contacted with the side walls of the bolt; and (E) a damaged thread at the tail end ofthe screw rod is scraped off by using a planing tool. The method is used for fixing the bolt when maintaining the bolt, so that the conditions of taking away the bolt by the scraping force and reducing the working efficiency are prevented.

Description

technical field [0001] The invention relates to the mechanical field, in particular to a bolt maintenance method for improving work efficiency. 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...

AI Technical Summary

Problems solved by technology

[0006] However, when removing the damaged thread at the end of the bolt shank, the head of the bolt is usually fixed by hand. This operation method not only increases the labor intensity of the worker, but also the bolt is easily taken away by the force of removal, reducing work efficiency; , In order to avoid the hand being cut by the cutting tool, the worker usually holds the head of the bolt. Since the radial size difference between the head of the bolt and the screw is large, the connection between the head of the bolt and the screw is subject to greater stress. When cutting the damaged thread of the screw, the cutting force is mainly concentrated in the radial direction, so a large shear force will be formed between the head of the bolt and the screw, which will affect the service life of the bolt

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