数控机床相关毕业设计翻译
- 文件介绍：
- 该文件为 doc 格式，下载需要 0 积分
- IMPROVING ACCURACY OF CNC MACHINE
TOOLS THROUGH COMPENSATION
FOR THERMAL ERRORS
Abstract： A method for improving accuracy of CNC machine tools through compensation for the thermal errors is studied. The thermal errors are obtained by 1-D ball array and characterized by an auto regressive model based on spindle rotation speed. By revising the workpiece NC machining program , the thermal errors can be compensated before machining. The experiments on a vertical machining center show that the effectiveness of compensation is good.
Key words : CNC machine tool Thermal error Compensation
0 INTRODUCTION
Improvement of machine tool accuracy is essential to quality cont rol in manufacturing processes. Thermally induced errors have been recognized as the largest cont ributor to overall machine inaccuracy and are probably the most formidable obstacle to obtaining higher level of machine accuracy. Thermal errors of machine tools can be reduced by the st ructural improvement of the machine tool it self through design and manufacturing technology. However , there are many physical limitations to accuracy which can not be overcome solely by production and design techniques. So error compensation technology is necessary. In the past several years , significant effort s have been devoted to the study. Be数控机床相关毕业设计翻译通过热量误差补偿来改善数控机床的精确度
摘 要：通过热量误差补偿来改变数控机床的精度是一种可行的方法。热量误差的获得是通过1-D滚珠排列和建立在锭子转速基础上的自动退刀的表征。通过改变工件的数控程序，热量误差在机加工以前可以被补偿。试验表明直立的加工中心的实际补偿是可行的。
关键词： 数控加工中心, 热量误差,补偿
0.引言：
数控机床精确度的改善是生产过程中质量控制的根本。热量误差已经被作为机器精确度失衡的最大诱因，而且可能也是机器获取更高精确度的最大障碍。数控机床的热量误差可通过机床本身的结构设计和生产技术的改善而降低。尽管如此，还是有许多物理性限制因素使得精确度不能通过生产和设计技术而单独克服。因此，误差补偿技术是很必要的。在过去的几年里，对此技术的研究已经获得重大成果。由于热量误差在加工时随时间而变化，许多前人的工作都集中在实际时间...
热门关键词： 
