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我厂自一九七二年试制成功了第一台 DX—2型程控线切割机后,七三年又试制成功了一台 DX—3型程控线切割机。在投产时,面临一个迫切需要解决的问题——分度工具。我厂微电机电枢冲片槽分度允差,图纸要求均为±10′,槽底对轴孔之不同心度允差为0.025mm,由于精度要求较高,故给模具制造带来了困难。为保证产品质量,从前凹模加工,我们采用坐标镗床,依坐标镗床之精度控制槽分度及槽底对轴孔的同心度。镗出基准孔后,由
Since the trial production of the first DX-2 type program-controlled wire cutting machine in 1972, our factory succeeded in manufacturing a DX-3 type program-controlled wire cutting machine in 1973. When put into operation, facing an urgent need to solve the problem - indexing tools. I plant micro-motor armature groove indexing tolerance, drawing requirements are ± 10 ’, the bottom of the hole on the shaft center of the heart to heart tolerance of 0.025mm, due to the higher precision, so to the mold manufacturing brought difficult. In order to ensure product quality, the former die processing, we use coordinate boring machine, according to the accuracy of coordinate boring machine control slot indexing and groove bottom of the shaft hole concentricity. After boring the reference hole, from