现代机器制造业日趋向高精度、高速度和大功率方向发展,对机器零件的加工质量和精度提出愈来愈高的要求。随着我国“四个现代化”的发展,这种要求势必更加紧迫。 提高机器零件的加工精度,除从工艺和测量方面采取措施外,如何进一步提高金属切削机床的加工精度占据着相当重要的地位。国内外在高精度机床的设计和研制方面已取得了相当的进展。其中除通过光、电、机的综合方法进一步提高机床本身零件的制造精度外(实践证明由于受工艺水平和经济核算的限制是很困难的),相当多的高精度机 Modern machinery manufacturing industry tends to high-precision, high speed and high-power direction, the machining of machine parts quality and accuracy put forward higher and higher requirements. With the development of “four modernizations” in our country, such a demand will certainly be even more urgent. Improve the machining accuracy of machine parts, in addition to taking measures from the aspects of process and measurement, how to further improve the machining accuracy of metal cutting machine tools occupy a very important position. At home and abroad have made considerable progress in the design and development of high-precision machine tools. In addition to the optical, electrical and mechanical methods to further improve the overall accuracy of the machine parts (in practice proved due to the level of technology and economic accounting restrictions is very difficult), a considerable number of high-precision machine