Processing crafts and tools of serrated lock washers external teeth

Abstract

The invention discloses processing crafts and tools of serrated lock washers external teeth. According to the tools, a middle guide pillar mould base is adopted, and forming of parts is achieved by utilizing a manner that mold inserts provided with sawteeth are pressed mutually, wherein the mold inserts are arranged on end heads of an upper mold and a lower mold. In the process of machining of serrated lock washers external teeth part products, once tooth-pressing forming of the part products can meet the requirements of size and a performance test, and technological process is optimized by utilizing the crafts and the tools. And quality of the products machined by the crafts is guaranteed, and part-taking process is very convenient. The tools are simple in structure, flexible in machining method, accurate and reliable in positioning, and high in production efficiency, and the parts are convenient to assemble and disassemble. Guiding functions and valve of use for reference can also be provided for those internal serrated washer products which are large in types and varieties and specifications, small in batch and short in production cycle. And new product development of other similar structures can also be enlightened, and the processing crafts and the tools of the serrated lock washers external teeth are worthy of being popularized.

Description

technical field [0001] The invention relates to a processing technology of a lock washer, especially a processing technology of a lock washer with external serrations, and also relates to a tool for processing the external serration lock washer. Background technique [0002] The outer serrated lock washer parts are mainly used in aviation, spaceflight and ships and other fields. The material of this kind of parts is usually 65Mn, and the material thickness is usually 0.5mm. Because this kind of parts has high requirements on locking performance, shape, size and quality, it must be produced with the help of molds. The general processing technology is: blanking→fitter punching through the wire hole→wire cutting shape and inner hole→pressing tooth forming→fitter repairing the tooth And grinding and printing → heat treatment to make it reach HRC40 ~ 50 → oxidation or galvanized passivation. Due to the complex and special structure and shape of the outer serrated lock washer par...

AI Technical Summary

Problems solved by technology

Due to the complex and special structure and shape of the outer serrated lock washer parts, high quality requirements, and defects in the conventional mold structure design, it is difficult for the processed parts to meet the product size and process requirements, and manual trimming and grinding are required.

However, manual trimming has poor product size consistency, which affects the locking performance of the product, and there is a problem of low production efficiency, which requires too much labor and increases the cost of the production enterprise.

At the same time, it is also inconvenient to take out the parts processed in this way, and each part needs to be manually pried out

[0003] Therefore, the processing technology and the device of existing outer serrated lock washer are still unsatisfactory

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