我厂外径千分尺测微螺杆和测砧是经车削、热处理、磨削等工序制造的。小端外圆φ7.5_(-0.013)~0磨削后再把它们切开。图(一)以前切断是在万能工具磨床上加夹具来进行的,效率低、劳动强度大。后来设计制造了一台专用螺杆切断机,效率提高五倍以上,劳动强度大为减小。使用数年,效果很好,且结构简单,维修方便。 Micrometer micrometer screw diameter and measuring anvil of our factory are measured by turning, heat treatment, grinding and other processes. Small end of the outer φ7.5 _ (- 0.013) ~ 0 and then cut them after cutting. Figure (a) previously cut off in the universal tool grinding jig to carry out, low efficiency, labor-intensive. Later designed and manufactured a special screw cutter, more than five times more efficient, greatly reduced labor intensity. Use for several years, the effect is very good, and the structure is simple, easy maintenance.