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弹性心轴由弹性夹头和心轴体组成,是利用弹性来夹紧工件或刀具的常用工具。由于生产需要,我们制造了一种新型弹性心轴。弹性夹头4(图1)装入定位套3中并依靠定位套3的圆柱面及圆锥面导向定心,弹性夹头4左端拧入心轴1的螺纹孔内,定位套3与弹性夹头4之间装有平键2,使两者只有轴向移动而无相对转动。当拧动定位套3时,由于键2和心轴1左端螺纹的作用,弹性夹头在转动的同时,又在定位套内产生轴向移动。夹头4在圆锥面的反作用下向内收缩,将工件夹紧。
Flexible mandrel by the elastic chuck and the spindle body composition, is the use of flexibility to clamp the workpiece or tool commonly used tools. Due to production needs, we have created a new type of flexible mandrel. The elastic collet 4 (FIG. 1) is inserted into the positioning sleeve 3 and guided by the cylindrical surface and the conical surface of the positioning sleeve 3, the left end of the elastic collet 4 is screwed into the threaded hole of the spindle 1, and the positioning sleeve 3 and the elastic clip Equipped with a flat key 2 between the head 4, so that both only axial movement without relative rotation. When the positioning sleeve 3 is twisted, due to the action of the key 2 and the left-hand thread of the mandrel 1, the elastic chuck is also rotated in the axial movement in the positioning sleeve. The collet 4 contracts inwardly against the conical surface and clamps the workpiece.