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我厂生产的几种液位仪表中,有不少不锈钢齿轮,采用电火花去毛刺,效果较好,其电极和夹具如图所示。杯形电极用紫铜或黄铜车成,内径略小于齿轮根径,外径略大于齿轮外径。心轴中间打有通孔,以便在工作时使循环油从下往上压进杯形电极内腔,再通过杯形电极与齿轮之间的间隙往外冲,这样工效高,加工性能好。杯形电极上可对称打两出气孔,以免气化压力过大而放炮。电火花去毛刺优点如下:1.质量高,毛刺去得干净。2.工效
I plant a few kinds of level instrument, there are a lot of stainless steel gear, the use of spark to deburring, the effect is better, the electrode and fixture as shown. The cup-shaped electrode is made of copper or brass, the inner diameter is slightly smaller than the gear root diameter, and the outer diameter is slightly larger than the gear outer diameter. Through-holes are drilled in the middle of the mandrel so as to press the circulating oil into the inner cavity of the cup-shaped electrode from bottom to top, and then pass the gap between the cup-shaped electrode and the gear to punch out, so that the working efficiency is high and the processing performance is good. Cup-shaped electrode can play two holes symmetrically, so as not to over-gasification and blasting. EDM deburring advantages are as follows: 1 high quality, burr to get clean. Ergonomics