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看了贵刊85年第6期《球体加工及误差计算》一文后,得益不少。有关加工方法、参数选择及误差分析等经验介绍值得推广。但该文谈到椭圆度误差计算时,其结果只能是粗略的估计,而不是准确的结论。在车床上安装铣削头加工球体零件,产生椭圆度误差,其原因是多方面的。除了该文中所说的安装误差,这一主要因素外,机床导轨的磨损、扭曲、主轴轴线与导轨不平行、切削力等等因素,都会影响刀盘轴线偏离主轴轴线(即不相交)产生椭圆度误差。
After reading the magazine No. 6, “Sphere Processing and Error Calculation,” a article, a lot of benefits. Relevant processing methods, parameter selection and error analysis and other experiences introduced worth promoting. However, when it comes to the calculation of ovality error, the result can only be a rough estimate, not an accurate conclusion. Milling the head installed in the lathe processing ball parts, resulting in ovality error, for many reasons. In addition to the installation error mentioned in this article, the main factor is that the wear and distortion of the guide rail of the machine tool, the non-parallelism between the spindle axis and the guide rail, the cutting force, etc., all affect the ellipse generated when the cutter axis deviates from the spindle axis Degree of error.