我厂制造的某机器上,有一种工字键板,两端有R=22的圆弧,需要用一种样板铣刀来加工。过去作这种铣刀的圆弧时,是在铲床上加工的,这样效率非常低,质量也不易达到要求,所以是我厂铣刀加工中的关键。本厂工具车间铣工,省一等工业劳动范模张秀同志,提出改进,在万能铣上用棒铣刀来铣 I plant a machine, there is a type of word keypad, both ends of the arc R = 22, you need to use a sample milling cutter to process. In the past for the milling arc, it is in the shovel bed processing, so the efficiency is very low, the quality is not easy to meet the requirements, it is my factory milling the key. Our factory tool mills, provincial first-class industrial labor model Zhang Xiu comrades, put forward improvements, universal milling with a milling cutter to mill