Hook-type commutator product, technology and mould

Abstract

The invention discloses a hook-type commutator product which comprises an insulator and commutator bars distributed on the outer circle of the insulator. Hooks are arranged at the top ends of the commutator bars, and upper hook pins and lower hook pins are arranged on the inner sides of commutator bars to be combined with the insulator. The hook-type commutator product is characterized in that the commutator bar are cylindrical copper shells before bar insulation grooves are formed, upper bar-shaped bodies and lower bar-shaped bodies are arranged at the upper ends and the lower ends of the cylindrical copper shells at equal distances before the cylindrical copper shells are formed, the upper bar-shaped bodies are segmented into inner parts and outer parts in the wall thickness direction, the inner parts are bent inwards and then form the upper hook pins, the outer parts are bent outwards and then form the hooks, the lower bar-shaped bodies are integrally bent inwards and then form the lower hook pins, and the cylindrical copper shells are formed by stamping and coiling copper plates. Through the product structure, small bar distance hook-type commutators can be efficiently manufactured with low cost. Meanwhile, the invention further discloses a technology and a mould for manufacturing the hook-type commutator product.

Description

technical field [0001] The invention relates to the technical field of commutator products, in particular to a product, a manufacturing process and a manufacturing mold of a hook-type commutator. Background technique [0002] In the traditional hook-type commutator, its commutator segments are formed by direct punching of formed and drawn copper materials, and the commutator segments are relatively independent. into the pressing mold, and then press and fix it together with bakelite powder in the pressing mold. Since the sheet arranging process requires a lot of manpower and time, the manufacturing process of the commutator is cumbersome and complicated, with high efficiency and low cost. Therefore, the applicant applied for a patent with the patent number 201120322836.5 on August 31, 2011 and the name "Commutation Copper Sheet of Hook-type Commutator". Formed on the copper shell, there are two upper hook feet on the commutator piece, and the two upper hook feet are arrange...

AI Technical Summary

Problems solved by technology

The above-mentioned patented technology can solve the problem that the commutator segment does not need to be arranged, but for the hook-type commutator with a small pitch, because the size of the hook groove in the middle of the adjacent segment hooks is too small, there are no two upper hook legs at all. space, so it is necessary to use the traditional method, punching independent commutator segments first and then arranging the segments

Therefore, above-mentioned patent technology is not applicable to the making of the hook type commutator of small piece spacing, at present, the manufacturing efficiency of the hook type commutator of small piece spacing is low, and manufacturing cost is high

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