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六角自动车床的轴向设计精度较低,苏制1A112为0.12毫米,国产C118K为0.08毫米。实际使用中,由于机床结构的传动链长,不稳定因素多,加上使用、调整和维护上的不当,所加工出的零件轴向尺寸精度更差,机床重复故障率高。这不仅影响产品质量,机修工作也十分被动。影响机床轴向精度的主要因素分析如下: 一、六角头的送进重复定位精度六角头的送进重复定位变化,主要是曲柄连杆机构不能准确地定位在死点上。正常情况下,通过调整换位离合器偏心螺钉,使离合器脱
Hexagonal automatic lathe axial design accuracy is low, Soviet-made 1A112 0.12 mm, domestic C118K 0.08 mm. In actual use, due to the length of the transmission chain of the machine tool structure, the unstable factors and the improper use, adjustment and maintenance, the axial dimension accuracy of the machined parts is even worse, and the repeat failure rate of the machine tool is high. This not only affects product quality, mechanics work is also very passive. The main factors that affect the machine tool axial accuracy are as follows: First, the hexagonal head feed repeat positioning accuracy Hexagonal head feed repeat positioning changes, mainly the crank and rod mechanism can not be accurately located at the dead point. Under normal circumstances, the clutch by adjusting the eccentric clutch screw off