Effect of servo and geometric errors of tilting-rotary tables on volumetric errors in five-axis machine tools. (May 2016)

• Record Type: Journal Article
• Authors: Ding, Wenzheng; Zhu, Xiaochun; Huang, Xiaodiao
• Is Part Of: International journal of machine tools & manufacture. Volume 104(2016:May)
• Page Start: 37
• Page End: 44
• Publication Date: 2016-05
• Subjects: Servo errors -- Geometric errors -- Tilting-rotary table -- Volumetric errors -- Five-axis machine tool; Machine-tools -- Periodicals; Manufacturing processes -- Periodicals; Machines-outils -- Périodiques; Fabrication -- Périodiques; Electronic journals; 621.902
• DOI: 10.1016/j.ijmachtools.2016.02.002
• Languages: English
• ISSNs: 0890-6955

Abstract

Abstract: The tilting-rotary table becomes a standard accessory for five-axis machine tools. An approach for volumetric errors evaluation taking into account servo and geometric errors of the tilting-rotary table is proposed in this paper. A simple machining model of volumetric circles is used to evaluate volumetric errors due to servo errors of the tilting-rotary table. A kinematic error model is used to predict the volumetric errors resulting from geometric errors associated with the tilting-rotary table. Then effects of the two error sources are added to predict the total volumetric errors. A test part obtained by improving the cone frustum specified in NAS979 is presented to validate this method. Cases studies with cutting experiments are carried out on a commercial five-axis machine tool. The results show that the proposed model is effective to evaluate the effect of servo and geometric errors of the tilting-rotary table on volumetric errors in the five-axis machine tool. Highlights: Volumetric circles are developed to evaluate servo errors of a tilting-rotary table. An integration concept of servo and geometric errors is presented in this paper. A test part is developed to validate the evaluation method presented in this paper.