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图1所示弓形件曲轨是我厂生产的纺织设备中关键零件之一,材料是HT200,两件成对使用(左、右)。技术要求是两件外弧面R648_(-0.50)~0尺寸需一致,故两件须成对加工。过去我们在1.6m立式车床上车成,精度和表面粗糙度均较差,经研究,要采用磨削加工才能满足要求,为此,我们设计制造了一套磨削装置,即在落地式导轨磨床改装的机床上对曲轨外圆弧面进行磨削,由此解决了加工问题。
The bow piece shown in Fig. 1 is one of the key parts of the textile equipment produced by our factory. The material is HT200 and two pieces are used in pairs (left and right). Technical requirements are two outer arc R648 _ (- 0.50) ~ 0 size to be consistent, so the two pieces to be processed in pairs. In the past we car on a 1.6m vertical lathe precision and surface roughness are poor, after the study, we must use grinding to meet the requirements, for which we designed and manufactured a set of grinding equipment, that is, in the floor Rail grinder modified machine on the curved outer surface of the arc grinding, thus solving the processing problems.