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一、CT/1350球面铣动力头的爬行 CT-1350球面铣床有一项精度要求,从主轴中心线到夹具定位面的高度为39.5mm,这个高度误差值直接影响中心球的摆差。动力头滑动面的拉伤或磨损,都直接影响着从主轴中心到夹具定位面的距离,而且严重影响着半轴中心球的摆差。动力头的爬行是由快速行程转为工作进给时产生的,在这一阶段内由于高压进给速度较慢,故此,摩擦阻力相对增加,这是产生爬行的主要原因。其二是机床刚性的减弱引起的。我们就动力头严重拉伤,采取下面办法:将导轨拉伤部位(包括滑台及动力头导轨)精刨后进行镶板。镶板材料选用铸
First, the CT / 1350 spherical milling power head crawling CT-1350 spherical milling machine has an accuracy requirement, from the spindle center line to the fixture positioning surface height of 39.5mm, the height error directly affect the center of the ball swing. The sliding or wear of the sliding surface of the power head directly affects the distance from the center of the main shaft to the positioning surface of the fixture and seriously influences the swing of the center shaft of the semi-shaft. The crawling of the power head is caused by the rapid travel into the work feed. During this phase, due to the high-pressure feed speed is slower, so the frictional resistance is relatively increased, which is the main cause of crawling. The second is caused by the weakening of the machine tool. We will power the head severely strained, take the following measures: The rail pull parts (including slide and power head rail) fine planing after paneling. Panel material selection of castings