我厂刀具车间每年要生产大量钻头、铰刀、丝锥等细长切削刀具。而细长坯料在车削加工中极易顶弯或甩弯。我们过去曾采用分段接力式加工,但因需多次装夹,为了保证同心度、精度和光洁度,需多留磨量、增补无心磨工序,结果生产周期长、效率低、致使刀具供应 I plant a year to produce a large number of drill shop drill bits, reamers, taps and other slender cutting tools. The slender billet in the turning process is extremely easy to bend or bend. We used to use segmented relay processing, but due to the need for multiple clamping, in order to ensure concentricity, precision and finish, the amount of grinding to be added to supplement the centerless grinding process, the result of long production cycle, low efficiency, resulting in tool supply