Path optimization and simulation of complex surface research in 3D vibration-assisted turning
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摘要: 为解决复杂曲面过渡区域加工残余高度不均匀、加工曲面表面质量下降以及干涉过切等问题，研究三维椭圆振动辅助车削刀具路径优化设计。针对这一系列问题，文章基于等角度、等弧长路径规划方法，提出一种路径规划优化算法模型，在过渡区插入一段圆弧，用数学解析法求解路径优化后的刀位点。以正弦曲面作为具体研究对象，利用仿真软件对路径进行仿真，结果表明提出的刀位点优化设计残余高度较传统算法降低27%；对复杂曲面过渡区进行放大，通过对比表明提出的路径规划优化算法过渡区表面光滑，无干涉过切现象；利用小波分析法对算法获得的表面形貌粗糙度进行评价，计算结果显示优化路径的表面粗糙度值Sq由0.005 9降低至0.004 5，Sa由0.006 7降低至0.003 8，表明优化路径算法得到的表面质量精度得到了提升。
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关键词:
- 复杂曲面 /
- 加工路径规划 /
- 三维椭圆振动辅助车削 /
- 路径仿真
Abstract: In order to solve the complexity of the problem, through the uneven processing technology, processing technology, cutting surface, etc., the optimization design of this path of vibration-assisted cutting is studied in all aspects, a path optimization model, in the transition zone planning circle, the mathematical plug-in method is used to demonstrate the method as the optimized position of the roadmap. For specific research objects, the simulation software path is used to simulate, and the results are initially formed. The proposed site design re-expands the earlier algorithm and the algorithm is reduced by 27%; for the complex technology transition area, the small program that optimizes the transition area through the proposed path planning is available, and does not involve overcutting phenomenon; The transition zone analysis; the obtained surface topography was carried out, and the calculation results showed that the surface roughness Sq of the optimized path decreased from 0.0059 to 0.0045, and the surface roughness Sa of the optimized path decreased from 0.0067 to 0.0038, and the surface quality of the optimized path algorithm was improved. -
表 3 三维表面粗糙度计算结果
Sq/mm Vp/mm Sa/mm 等角度法 0.005 2 0.042 6 0.006 7 等弧长法 0.005 9 0.047 6 0.005 9 优化路径 0.004 5 0.038 7 0.003 8 
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