这是一种在推行国际标准中行之有效的切齿夹具。它具有利用机床的液压源实现自动夹紧及消除与工件的径向间隙、补偿端面定位误差的功能。文章对其结构、工作原理以及关键零件的设计、制造和鉴别等问题作了详细描述。 This is an effective incision fixture for the implementation of international standards. It has the use of hydraulic machine tool to achieve automatic clamping and radial clearance with the workpiece to compensate for the positioning of the end face of the error function. The article gives a detailed description of its structure, working principle and the design, manufacture and identification of key parts.