螺母车外圆胎具(一) 以前用螺丝胎具加工螺母外圆,由于切削力的作用,使加工完的螺母不易卸下,需用夹板或管钳之类的工具卸下工件,有时还要用扁铲往下剔,既费力又易将工件弄坏。使用这种胎具(图1),工作时将销放在位置Ⅰ,卸活时用小锤将销打到位置Ⅱ,用手即可把工件取下。经过几年的使用效果较好,适于较大形螺母的外圆加工。 Nut car tire (a) before the screw nut processing with a cylindrical, due to the role of cutting force, the finished nut is not easy to remove, the need to use plywood or pipe pliers and other tools to remove the workpiece, sometimes Use a flat shovel down tick, both laborious and easy to damage the workpiece. The use of such a tire (Figure 1), the work will be placed in the pin position I, when unloaded with a small hammer hit the pin to position Ⅱ, the workpiece can be removed by hand. After several years of use of better results, suitable for large-shaped nut of the outer circle processing.