青岛造船厂在加工箱体类零件时遇到一个难题,箱体零件上有一个锥形孔,在普通镗床上加工直孔比较方便,但是在镗床上根本无法实现锥形孔加工。因为箱体零件尺寸较大,且锥形孔偏心尺寸也很大,无法在立式车床上加工完成。为此本厂成立专门机构,研究在镗床上加工锥形孔的可能性,经过长期 Qingdao Shipyard in the processing of parts of the box encountered a problem, the box parts have a tapered hole in the ordinary boring machine straight hole processing more convenient, but in the boring machine simply can not achieve tapered hole processing. Because the larger box parts size, and tapered hole eccentric size is also large, can not be completed in the vertical lathe. To this end the factory set up a special body to study the possibility of taper hole boring machine processing, after long-term