若需将螺钉螺纹部分车成各种形状,可采用简便夹具,制造时可选用适当的六角螺母或加厚六角螺母,在图示位置铣一开口槽。使用时先将螺钉旋入螺母中,然后用三爪卡盘直接夹紧螺母,便可进行车削加工。如果能在螺钉圆柱头和螺母之间加一隔套c,旋紧螺母后再装夹,则承受的切削力更大。 If you need to thread the screw into a variety of shapes, you can use a simple fixture, manufacturing options hexagonal nut or thickening of the hexagonal nut, in the position shown milling an open slot. When using, screw the screw into the nut first, and then use the three-jaw chuck to clamp the nut directly to make the turning. If you can add a spacer between the screw cylinder head and nut c, tighten the nut and then folder, the greater the cutting force.