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图示为缝纫机摆轴自动线中同时完成镗孔和倒角用的组合刀具。刀体安装在刀架上,刀体端部的斜孔内装有镗刀头。拧开刀头的压紧螺钉及调节其后面的定位螺钉,镗刀头即可沿斜孔轴向移动,从而实现刀头径向尺寸的微调。倒角刀头装在倒角刀杆的头部,松开它的压紧螺钉,也可进行径向位置的调整,以满足倒角的要求。倒角刀杆尾部的圆柱上有一圆孔,该孔套在圆柱销上,并可沿圆柱销轴向滑动。圆柱销的两端支承在滑动套上,并由套筒螺母孔限位。在刀体圆柱杆的中部加工有一腰形槽,当刀具未进行切削加工时,由于刀体内孔中压缩弹簧的作用,将圆柱销压向腰形槽的最
The figure shows a combined tool for simultaneous boring and chamfering in an automatic line of sewing machine pendulum axis. The knife body is arranged on the knife holder, and the boring head is arranged in the inclined hole at the end of the knife body. Unscrew the pressure head of the screw and adjust the screw behind the positioning, boring head can be along the axial movement of the inclined hole, in order to achieve fine-tuning the radial size of the blade. Chamfering cutter mounted on the head of the chamfering arbor, release its compression screw, radial position can also be adjusted to meet the requirements of chamfering. A circular hole is formed in the cylinder at the rear of the chamfering arbor, and the hole is sheathed on the cylindrical pin and can slide axially along the cylindrical pin. Both ends of the cylindrical pin are supported on the sliding sleeve and are limited by the sleeve nut hole. In the middle of the body of a cutter body, a waist-shaped groove is machined. When the cutter is not cut, the pin is pressed against the waist groove by the action of the compression spring in the hole of the cutter body