我厂从英国进口一台半自动丝锥磨床,专门用来加工汽车用的各种丝锥。其加工过程的主要特点是:①采用多线砂轮以纵向磨削法磨削经过予先加工和淬火的光杆坯料。②整个磨削过程除上下料外,全部自动。每加工完成一个丝锥的机动时间为1—2分钟。③磨出的丝锥精度为1—2级,齿面光洁度为▽9。 I plant imported from the United Kingdom a semi-automatic tap grinder, specifically used to process a variety of taps for automotive use. The main features of its processing are: ① using multi-line grinding wheel to longitudinal grinding method to pre-processing and quenching the light bar blank. The whole grinding process except for loading and unloading, all automatic. The machining time for one tap per process is 1-2 minutes. ③ grinding tap accuracy of 1-2, tooth surface finish ▽ 9.