Abstract
The motorized spindle is a primate part of the machine tool and its thermal characteristics have great influence on the accuracy of the machine tools. The thermal errors of the spindle of a certain type of precision horizontal machining center were measured with PLC acquisition system. By multivariate linear regression method, the axial thermal error model was built. Online real-time error compensation was implemented by applying the FANUC 18i CNC system external machine coordinate system shift function. A verification method was proposed which include three steps: model validation, compensation validation and experimental machining verification. The accuracy of the model was 84.1%, 64.9% and 49.4% respectively. The quantitative analysis results showed the precision was effectively improved and the compensation method was reliable.
Publisher
Trans Tech Publications, Ltd.
Reference6 articles.
1. Bryan J B. International status if thermal error research. Annals CIRP, 16. (1969): 203-215.
2. Vyroubal, J. Compensation of machine tool thermal deformation in spindle axis direction based on decomposition method. Precision Engineering, 36 (2012): 121–127.
3. Liangyu Cui, Weiguo Gao, Dawei Zhang, Lin Han. Transactions of Tianjin University, 17. 5. (2011): 340-343. (In Chinese).
4. The International Organization for Standardization. ISO230-3-2006 test code for machine tools-Part 3: Determination of thermal effects. Geneva: International Standard Organization, (2006).
5. Shuhe Li, Yiqun Zhang. Aviation Precision Manufacturing Technology, 32. 4. (1996): 6-9. (In Chinese).
Cited by
11 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献