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遵照毛主席“教育必须为无产阶级政治服务,必须同生产劳动相结合”的教导,1974年10月份至11月份,我们到了济宁模具厂,实行开门办学,以数学程序控制线切割机加工模具作为典型任务,来组织教学,进行教育革命实践活动。当时该厂接受了加工“SHG——73型手携式圆锯电枢冲片模”的任务。圆锯是广州出口交易会上的展品,电枢冲片模是制造圆锯电枢冲片的模具,要求精度较高。该厂要用数控线切割机进行加工,而用数控线切割机加工之前,先要把冲片模的图纸,作适当的处理,把冲片模的图纸处理成由直线与圆弧衔接的
In accordance with the teaching of Chairman Mao, “education must serve proletarian politics and must be integrated with productive labor.” From October to November 1974, we went to the Jining Mold Factory and opened the door to run the mold with the mathematical control of wire cutting machines as the Typical tasks, to organize teaching, education and revolutionary practice. At that time, the factory received the task of processing “SHG-73 hand-held circular saw armature punch die”. Circular saw is an exhibit at the Guangzhou Export Fair. Armature punching dies are the molds used to make circular saw armature punches and require high precision. The factory to use CNC wire cutting machine for processing, and CNC machining before cutting, the first punch sheet to the drawings, for appropriate treatment, the punch sheet of the drawing into a straight line and arc convergence