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Copper roll type method of making commutators

A manufacturing method and commutator technology, applied in the direction of commutator manufacturing, etc., can solve the problems of large radial runout of semi-finished products, affecting the performance of motors, and poor roundness of commutators, so as to achieve good roundness of finished products and save The effect of sheet arranging process and improvement of adhesion

Inactive Publication Date: 2007-01-17
ZHEJIANG GREATWALL COMMUTATOR
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the above-mentioned manufacturing method of the commutator, the procedures such as "punching the wire into a single piece of the commutator piece through the cylindrical core piece arrangement device to arrange the piece and then inserting the mica piece" are complicated and cumbersome, and the work efficiency is low. Production high cost
In particular, the sheet arranging process needs to be manually operated by personnel, and there is a gap between the commutator sheet and the sheet arranging device, resulting in a large radial runout of the semi-finished product during the outer circle process (generally 6-8μm), which makes the roundness of the commutator Poor, which affects the performance of the motor

Method used

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  • Copper roll type method of making commutators
  • Copper roll type method of making commutators
  • Copper roll type method of making commutators

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Embodiment Construction

[0015] The copper coil type manufacturing method of the commutator of the present invention comprises successively wire rolling, drawing, annealing, and punching, pressing (adding molding compound), curing, reaming, turning the outer circle, milling grooves, sanding, polishing Operation, the described wire rod drawing process is to draw the rolled wire rod into cross-section and be: K " font wire rod (such as figure 1 and figure 2 shown); the stamping process is to stamp the annealed wire rod into an annular commutator sheet group, and the longitudinal section of the annular commutator sheet group is a "K"-shaped structure (by a 10-ton punch press punched, such as image 3 and Figure 4 shown). Then add molding compound to press and solidify, and make the finished commutator through the processes of reaming, turning the outer circle, milling groove, sanding and polishing. like Figure 5 As shown, the commutator made by the present invention includes a commutator segment ...

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Abstract

The invention discloses a copper coil type manufacturing method of a commutator, comprising in turn the following steps: wire rolling, drawing, annealing, punching out, pressing, solidifying, reaming, lathing an outer periphery, channeling, sanding, and polishing etc, wherein the pressing step makes an annealed wire be pressed into an annular commutator segment assembly. The invention eliminates the original fussy sheet arranging step so that the produced commutator provides an good article roundness, which makes the dynamic unbalance of the commutator be minimized.

Description

1. Technical field [0001] The invention relates to a method for manufacturing a commutator for a motor. 2. Background technology [0002] The manufacturing method of the existing commutator for electric motors is a sheet type, that is, the wire is first rolled, drawn, and annealed, and then the wire is punched into a single piece of the commutator (punched by a 5-ton punch) , and then through the processes of sheet arrangement, pressing, curing, reaming, outer circle turning, groove milling, sanding, and polishing, it is made into a finished commutator. The principle of its film arrangement process adopts the Chinese invention patent application with publication number CN 1089762A "commutator film arrangement device and its film arrangement process" (application number: 93120155.1, public date: July 20, 1994, authorized announcement date: 1995 On May 31, 2009), that is, using the cylindrical core chip arrangement device as the skeleton, insert the commutator segments of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R43/06
Inventor 杨积锡林祥清张学敏罗洪
Owner ZHEJIANG GREATWALL COMMUTATOR
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