近年来,在十字形零件和三通零件的车削加工中,广泛采用自动化卡盘。在绝大多数情况下,这种卡盘能够在工件的一次安装中完成工件的全部加工,从而消除了工件的多次装卸和建立精基准面的工序,提高了生产率、加工质量和设备利用率。工件在自动化卡盘上由分度机构实现回转和定位。在分度机构中,带有规则多面体的回转轴为从动(分度)元件,而楔形、平面的或杠杆式的推杆为主动元件。因为分度元件能够制成不同的规则多面体,分度机构就可以实现不同 In recent years, automating chucks have been widely used in the turning of cruciform and tee parts. In the vast majority of cases, this chuck can complete the entire machining of the workpiece in one installation, eliminating the need for multiple loading and unloading of the workpiece and the creation of a precision datum, resulting in increased productivity, process quality and equipment availability . Workpieces on the automated chuck indexing mechanism to achieve rotation and positioning. In the indexing mechanism, the rotary axis with the regular polyhedron is the driven (indexing) element, and the wedge, flat or leveraged push rod is the active element. Because indexing elements can be made into different regular polyhedrons, indexing mechanisms can make a difference