本机构是由刀头和刀夹两部分组成,刀头与刀夹的结合面A,加工成锥面配合。刀头上旋入夹紧棒,棒上有两个两面锥凸缘,装卸刀头是依靠装在刀夹内的三片夹套左右滑动来控制的。刀头装卸动作过程如下: 装刀对,把刀头上的夹紧棒插入三片夹套内,当拉杆拉着三片夹套向右移动时,它的外爪右锥面受到刀夹体内锥面B的作用,使三片夹套边移动边向中心收拢。与此同时,三片夹套的内爪与夹紧棒上的两面锥凸缘的左锥 The body is composed of two parts of the cutter head and the tool holder, the combination of the cutter head and the tool holder A, processed into a cone. The cutter head is screwed into the clamping rod. There are two double-sided cone flanges on the rod. The loading and unloading cutter head is controlled by the left and right sliding of the three jacketed knives installed in the cutter holder. Cutting head loading and unloading movements are as follows: Loading knife pair, insert the clamping rod on the cutter head into the three-piece jacket. When the pull rod is pulling the three-piece jacket to the right, The role of cone B, so that the three sides of the jacket while moving to the center Shoulong. At the same time, the inner jaw of the three-piece jacket and the left-hand cone of the two-sided cone flange on the clamping rod