| 孔森， 张立强， 冯倩倩， 邵云龙.基于刀具跳动的非可展直纹面侧铣加工刀位优化方法[J].轻工机械,2021,39(1):7-11 |
| 基于刀具跳动的非可展直纹面侧铣加工刀位优化方法 |
| Cutter Position Optimization Method Based on Tool Runout for Flank Milling of Non Developable Ruled Surface |
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| DOI：10.3969/j.issn.1005 2895.2021.01.002 |
| 中文关键词: 铣削加工 侧铣 非可展直纹面 刀具跳动 回转轮廓半径 |
| 英文关键词:milling process flank milling non developable ruled surface tool run out rotation contour radius |
| 基金项目:国家自然科学基金资助项目（51775328）。 |
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| 中文摘要: |
| 在非可展直纹面的侧铣加工过程中，曲面的非可展的特性会影响加工后零件的表面质量。尤其在铣削软材料工件非可展直纹面时，刀具跳动是零件表面加工误差增大的新因素。针对这一问题，课题组提出了一种基于刀具跳动的非可展直纹面侧铣加工刀位优化方法。首先构建了刀具跳动下的误差度量函数；随后通过测量法得到了刀具跳动后的实际回转轮廓半径；最后在考虑刀具跳动的情况下通过单点摆动法对初始刀位进一步优化。仿真实验结果表明：在将刀具跳动因素加入非可展直纹面的误差优化模型中后，加工平均误差减小了25%，过切率减小了18.5%。该研究方法有效提高了零件的表面质量。 |
| 英文摘要: |
| In the flank milling process of non developable ruled surface, the non developable characteristic of curved surface will affect the surface quality of the processed parts. The tool run out is a new factor that increases the machining error on the surface of the parts, especially in the milling process of soft materials. To solve this problem, a tool position optimization method based on tool run out for non developable ruled surface milling was proposed. Firstly, the error measure function under the tool jumping was constructed. Then the actual radius of the tool′s rotation contour was obtained by measuring. Finally, the initial tool position was optimized by single point swing method considering tool run out. The simulation results show that when the tool run out factor is added into the error optimization model of non developable ruled surface, the average machining error is reduced by 25% and the overcutting rate by 18.5%, which effectively improves the surface quality of the parts. |
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