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0.引言随着我国制造业的飞速发展,数控机床制造技术也在不断地发展,同时对数控机床的各项性能提出了越来越高的要求。机床的定位精度便成为了衡量机床性能的一项重要指标。机械结构当中不可避免的摩擦、间隙,以及装配误差成为了制约机床定位精度的主要因素。由此,数控系统的制造商开发出了螺距误差补偿功能,借此以消除或者削弱以上因素对机床定位精度的影响,从而达到更好的加工效果。发那科与西门子两大公司在这个领域表现得尤为出色,以下将对这两种数控系统的螺距误差补偿方法进行详细介绍。
0. Introduction With the rapid development of China’s manufacturing industry, CNC machine tool manufacturing technology is constantly developing, while the performance of CNC machine tools put forward higher and higher requirements. Machine positioning accuracy has become a measure of machine performance is an important indicator. The inevitable friction, clearance and assembly error in the mechanical structure have become the main factors restricting the positioning accuracy of the machine tool. As a result, CNC system manufacturers have developed a pitch error compensation function, in order to eliminate or weaken the above factors on the positioning accuracy of the machine, so as to achieve better processing results. Fanuc and Siemens two companies in this area is particularly good performance, the following will be two kinds of CNC system pitch error compensation method is described in detail.