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车床导轨容易磨损、拉毛和咬伤,特别是在加工铸锻毛坯件时更是如此。少数机床床身铸件质量差,结构疏松,磨损更加显著。例如我厂一台C620车床,大修后仅六个月精度已严重丧失。我们采用了导轨镶钢修复的办法,初步收到了一些效果。一、镶钢导轨块的结构和制造镶钢导轨块长度为200～300毫米,不宜过长,以免淬火变形过大。例如中心距为1400毫米的C620-1车床的三角导轨长2025毫米,平导轨长1950
Lathe guides tend to be worn, pulled and bitten, especially when machining castings and forged blanks. A small number of machine tool bed castings of poor quality, loose structure, wear more significant. For example, I plant a C620 lathe, the accuracy of only six months after the overhaul has been a serious loss. We used a guide rail steel repair method, initially received some results. First, the structure and manufacture of inlaid steel rail block Inlaid steel rail block length of 200 to 300 mm, not too long, so as not to over-quench distortion. For example, the center rail of the C620-1 lathe with a center distance of 1400 mm has a 2025 mm long triangular rail and a long rail length of 1950