Process for manufacturing commutator

Abstract

The invention relates to a manufacture method of commutator, the commutator includes a commutator body which contains many insulation trough in the circumference direction, the commutator piece placed in the insulation trough, the commutator has establishes the hook foot, the commutator body is prepared by the engineering plastics, the hook foot is manufactured by the die craft; the manufacture method of the commutator is that the insulation trough orients orientation shell by the engineering plastics manufacture and molding, the orientation shell is cooperated with the outer diameter of the commutator body, the orientation shell is manufactured by nylon, the orientation shell installs multi-bars, and the width of the bar is 0.02 millimeter bigger than the insulation trough, the depth of high commutator insulation trough is 0.05 millimeter bigger, the rear part of the hook foot installs a taper body; the invention greatly reduced the production working procedure and equipment, has short production cycle greatly, the lower production cost, the product does not need to carry on the turning machining, is very clean in the product trough, the product has no harm which the mica sheet brings; therefore it has greatly promoted the product mix optimization and the stable operational performance.

Description

technical field [0001] The invention relates to the field of a method for manufacturing a commutator, in particular to a method for manufacturing a hook-type commutator used for a motor armature. Background technique [0002] At present, there are many structures of commutators used for motor armatures, but most products include a commutator base and a plurality of commutator segments placed in the commutator base, and hook feet are provided at one end of the commutator segments , the commutator base is provided with a plurality of insulating grooves, and mica sheets are arranged in the insulating grooves. The insulating grooves are formed by machining, usually by milling blades for milling and forming and turning the outer circle. It can be completed; and the mica sheet also needs multiple processes such as blanking, punching, sheet arrangement and pressing; its manufacturing process is as follows: [0003] Commutator slice blanking and pulling----punching commutator slice...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned manufacturing process has many production procedures, requires a lot of processing equipment and manpower, and has a long production cycle; secondly, the insulation groove has internal stress after machining, which affects the stability of product performance; at the same time, the insulation During the processing and assembly of the groove, copper powder is easy to infiltrate into the insulating groove, and the mica sheet is arranged in the insulating groove, and the mica sheet is easy to absorb moisture, so that the mechanized sheet arrangement is not easy to realize

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