麦博K520

In order to e nsure normal tea chi ng or der, protecti ng student s ' healt hy growth, ensuring t hat nati onal (pr operty) is not lost, to preve nt or minimize the occurre nce of safety acci dent s, follow t he "preve nt, rescue ea ch othe r, en sure safety and re duce losses" pri nci ple, a ccordi ng to the l oca l conditi ons, make t he manageme nt system. 1, t he pri nci pal is he responsi bil

我公司一台汉江机床厂产于20世纪70年代的Y7520K螺纹磨床,由于使用年代较长,在对蜗杆进行单齿面磨削加工时经常出现加工误差。经哈量L100齿轮测量中心的检测发现,被磨削齿面检测第一项:一转螺旋线fh的测值为左齿面7.9μm,右齿面为62.8μm,其两齿面均超过GB 10089—1988中4级精度公差7.1μm的国家标准。第二项蜗杆螺旋线fhL的测值为左齿面12.9μm、右齿面62.8μm,其右