机床导轨直线度误差的确定,目前普遍采用作图法和计算法。作图法的优点是;能直接观察出导轨直线度误差曲线中最凸和最凹部位,并能直接读出误差值。但作图法常常受作图工具及表格纸的限制,特别在精密机床中,直线度的要求较高,当误差值与其规定要求接近时,由于作图和视力观察所产 Machine Tool Guideway to determine the error of straightness, the current commonly used method of drawing and calculation. The advantage of mapping is that it can directly observe the convex and concave parts of the straightness error curve of the guide rail and directly read out the error value. However, the drawing method is often limited by drawing tools and form paper. Especially in precision machine tools, the requirements of straightness are higher. When the error value is close to its requirement,