RTCP(Rotation tool center point)is one of the necessary function for high-grade CNC machine tool, which can effectively decrease the nonlinear errors caused by the motion of rotation axis and improve the machinery accuracy. According to the characteristics that the cutting tool tip point is still relative to the manufacturing workpiece, the RTCP trajectory is proposed so as to conveniently measure displace of tool tip point. The scheme is in favour of studying the dynamic performance of the machine tool, and simulation which shows the relationship between the error trajectory of the tip point and the dynamic performance influencing factors of the machine tool is presented based on servo system model. Then the method on tracing the source of the dynamic error is suggested, and will perform the theoretical support for parameter adjustment of CNC machine tools.
JIANG Zhong
,
DING Jiexiong
,
WANG Wei
,
DENG Meng
,
DU Li
,
SONG Zhiyong
. Tracing the Source of the Dynamic Error for Five-axis CNC Machine Tool Based on RTCP[J]. Journal of Mechanical Engineering, 2016
, 52(7)
: 187
-195
.
DOI: 10.3901/JME.2016.07.187
[1] 粟时平,李圣怡,王贵林. 基于空间误差模型的加工中心几何误差辨识方法[J]. 机械工程学报,2002,38(7)：121-125.
SU Shiping,LI Shengyi,WANG Guilin. Identification method for error of machining center based on volumetric error model[J]. Chinese Journal of Mechanical Engineering,2002,38(7)：121-125.
[2] YIN Jian,PAN Fangyu,LI Ming. Accuracy calibration of a five axis gantry machine tool using lasing tracker[J]. International Conference on Convergence Information Technology,Lecture Notes in Information Technology,2012,19：164-168.
[3] 张虎,周云飞.数控机床空间误差球杆仪识别和补偿[J]. 机械工程学报,2002,38(10)：108-113.
ZHANG Hu,ZHOU Yunfei. Error identification and compensation of CNC machining centers using renishaw ball bar[J]. Chinses Journal of Mechanical Engineering. 2002,38(10)：108-113.
[4] ISO/CD 10791-6：2014. Test conditions for machining centers—part 6：Accuracy of feeds,speeds and interpolations[S]. Geneva：International Organization for Standardization,2014.
[5] TSUTSUMI M,SAITO A. Identification and compensation of systematic deviationsparticular to 5-axis machining centers[J]. International Journal of Machine Toolsand Manufacture,2003, 43：771-780.
[6] TSUTSUMI M,SAITO A. Identification of angular and positional deviationsinherent to 5-axis machining centers with a tilting-rotary table by simultaneous four-axis control movement[J]. International Journal of Machine Tools and Manufacture,2004,44：1333-1342.
[7] NORIYUKI K,RYUTA S,MASAOMI T. 3D circular interpolation motion equivalent to cone-frustum cutting in five-axis machining centers and its sensitivity analysis[J]. Procedia CIRP 1,2012：530-535.
[8] WEIKERT S, KNAPP W. R-Test：A new device for accuracy measurements on five axis machine tools [J]. CIRP Annals - Manufacturing Technology,2004,53(1)：429-432.
[9] BRINGMANN B,KNAPP W. Model-based Chase-the- Ballf calibration of a 5-axismachining center [J]. CIRP Annals-Manufacturing Technology,2006,55(1)：531-534.
[10] BRINGMANN B,KUNG A. A measuring artefact for true 3D machine testing and calibration [J]. CIRP Annals - Manufacturing Technology 2005,54：471-474.
[11] SOICHI I,CHIAKI O,HISASHI O. Construction of an error map of rotary axes on a five-axis machining center by static R-test[J]. International Journal of Machine Tools & Manufacture,2011,51(3)：190-200.
[12] 李亮亮,杜正春. 一种新型五轴加工中心误差测量装置的模型分析[J]. 上海交通大学学报,2013,47(11)：1801-1806.
LI Liangliang,DU Zhengchun. Model analysis of a novel error measurement device of five-axis manufacturing center[J]. Journal of Shanghai Jiao Tong University,2013,47(11)：1801-1806.
[13] 刘大炜,郭志平,宋智勇. 一种R-test球头球心检测装置结构优化设计方法[J]. 机械工程学报,2013,49(23)：161-166.
LIU Dawei,GUO Zhiping,SONG Zhiyong. An optimum structural design method of R-test ball Sphere center measuring device[J]. Journal of Mechanical Engineering,2013,49(23)：161-166.
