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普通车床的床身导轨,由于长时间的使用磨损和反复磨削、修刮,导致溜板箱严重下沉,使溜板箱内的纵走刀齿轮与床身齿条间的啮合,产生了较大的间隙。在用手摇溜板箱工作时就比较费力,而且也不灵活,尤其是在自动走刀车削螺纹时(附图),当纵走刀手轮上的手柄转到手轮的最高点附近时,手柄将由于偏重不平衡向下冲击一段距离(等于齿侧间隙),使齿轮与齿条突然相撞,带动溜板箱发生振动,影响螺纹加工的精度,并易打刀。因此,当发现纵走刀齿轮啮合的齿侧间隙过大时,应及时修复。其方法较多。
Ordinary lathe bed rails, as a result of prolonged use of wear and repeated grinding, repair scratch, resulting in a serious sinking box, so that the slide box vertical walking gear and bed rack gear between the mesh, resulting in Larger gap. When working with the hand-skateboards, it is laborious and not flexible, especially when automatic thread cutting (with photo), when the handle on the handloom wheel rotates to the highest point of the hand wheel, The handle will be due to unbalanced downward impact a distance (equal to the tooth-side gap), so that the gear and rack suddenly collided, driving the slide box vibration, affecting the accuracy of thread processing, and easy to hit the knife. Therefore, when it is found that vertical tooth gear meshing flank gap is too large, it should be promptly repaired. The more ways.