Fixture for performing excircle finish turning on starter armature

Abstract

The invention discloses a fixture for performing excircle finish turning on a starter armature. The fixture comprises a centre which sequentially comprises a tip part, an adjustment part and a rod part. The fixture further comprises a center hole adjustment sleeve and a rough positioning sleeve which is of a hollow structure, wherein the center hole adjustment sleeve is arranged on the adjustment part in a sleeving manner, the rough positioning sleeve and the center hole adjustment sleeve are coaxially installed, the rough positioning sleeve is arranged on the tip part in a sleeving manner, and an inner cavity of the rough positioning sleeve is provided with a clamping tooth matched with the starter armature. The fixture further comprises a spring adjustment mechanism and a radial locking mechanism, wherein the spring adjustment mechanism is arranged between the center hole adjustment sleeve and the rough positioning sleeve and used for adjusting relative displacement between the centre and the clamping tooth, and the radial locking mechanism is arranged in the center hole adjustment sleeve and used for limiting rotation of the centre. The fixture for performing excircle finish turning on the starter armature is stable in structure and convenient to operate, the coaxial precision of clamping and machining precision of the starter armature are effectively improved, and the production efficiency is greatly improved.

Description

technical field [0001] The invention relates to the technical field of starter machining, more specifically, it relates to a fixture used for finishing the outer circle of a starter armature. Background technique [0002] During the manufacturing process of the starter, the armature of the starter needs to go through the process of finishing the outer circle. For the finish turning of the outer circle of the starter armature, lathes are generally used in the industry for processing. Therefore, the starter armature Clamping is especially important. At present, in the starter armature processing industry, for the armature clamping, the traditional clamping method is to clamp the armature with a thimble structure at both ends of the lathe, and then perform outer circle finish turning on the armature. The fixture of this structure clamps and positions the armature in the form of point contact. Due to the uncontrollability of manual clamping, it will bring errors to the clamping...

AI Technical Summary

Problems solved by technology

The fixture of this structure clamps and positions the armature in the form of point contact. Due to the uncontrollability of manual clamping, it will bring errors to the clamping, thereby affecting the qualification rate of the armature, and the same time as the secondary clamping. The axiality cannot be guaranteed, resulting in low accuracy of the armature outer circle finish turning. At the same time, most of the traditional armature clamping needs to rely on the experience of the staff to judge the coaxiality. Therefore, the clamping efficiency of the armature is low. It is also inconvenient for workers to operate, and the labor cost is high

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