一种新型五自由度雕刻机床的工作空间分析

doi:10.16180/j.cnki.issn1007-7820.2023.12.002

摘要/Abstract

摘要：

针对传统三自由度串联雕刻机床难以加工空间复杂曲面的问题,文中给出了一种空间新型五自由度串并联雕刻机床的设计方案。在SolidWorks中建立该雕刻机床的三维模型,采用空间几何法建立了位置反解和参数解耦的数学模型,并在MATLAB中利用蒙特卡洛法生成了工作空间。通过对其工作空间分析可知,该雕刻机床的工作空间较大,在一定程度上可以满足对零件空间复杂曲面的加工需求。在此基础上,通过对该雕刻机床工作空间的分析发现,增大该新型雕刻机床工作空间较合适的方法是增加串联滑轨长度。

关键词: 机构分析, 混联机床, 位置反解, 工作空间, 参数解耦, 蒙特卡洛法, 空间影响参数, 运动约束

Abstract:

In view of the problem that the traditional three-degree-of-freedom series-parallel engraving machine tool is difficult to process the complex surface in space, this study presents a novel type of five-degree-of-freedom series-parallel engraving machine tool in space. The three-dimensional model of the engraving machine is established in SolidWorks, the mathematical model of position inverse solution and parameter decoupling is established, and the workspace is generated by Monte Carlo method in MATLAB. The analysis of working space shows that the working space of the engraving machine tool is large, which can meet the processing requirements of complex surfaces in the part space to a certain extent. On this basis, through the analysis of the working space of the engraving machine tool, it is found that the suitable method to increase the working space of the new engraving machine tool is to increase the length of the series slide rail.

Key words: institutional analysis, hybrid machine tool, position inverse solution, workspace, parameter decoupling, Monte Carlo method, spatial influence parameters, motion constraints

中图分类号:

TP242.3

刘嘉琦,伞红军,陈久朋,杜孟彦,肖乐. 一种新型五自由度雕刻机床的工作空间分析[J]. 电子科技, 2023, 36(12): 9-15.

LIU Jiaqi,SAN Hongjun,CHEN Jiupeng,DU Mengyan,XIAO Le. Workspace Analysis of A Novel 5-DOF Engraving Machine Tool[J]. Electronic Science and Technology, 2023, 36(12): 9-15.

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参数	数值
固定连杆长度	800 mm
刀尖距离	50 mm
动平台外接圆半径	200 mm
定平台外接圆半径	500 mm
滑块最大行程	700 mm
连杆极限夹角	60°
串联滑轨长度	1 000 mm