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夹紧机构包括在机床的工艺系统内,决定着工件的定位和夹紧条件,影响加工精度.定位和夹紧功能的重合,很难解决夹紧力和精度之间的矛盾.一是定位表面应精密,二是夹紧力使它们产生变形和磨损,从而降低精度.随着对薄壁工件加工精度要求的提高,这对矛盾尤为突出.在多轴机床和加工中心上加工时,因粗、精加工工序是一次安装完成.矛盾更加严重.
The clamping mechanism is included in the process system of the machine tool, which determines the positioning and clamping conditions of the workpiece and affects the machining accuracy. The coincidence of the positioning and clamping functions can hardly solve the conflict between the clamping force and the accuracy. Should be precise, the second is the clamping force so that they produce deformation and wear, thereby reducing the accuracy with the thin-walled workpiece machining accuracy requirements are particularly prominent contradiction between the multi-axis machine tools and machining centers, due to rough , Finishing process is a complete installation. Contradiction is more serious.