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| 基于刀触点路径截面线法的不规则曲面锯切工艺算法研究 |
| Research on the sawing process algorithm of irregular curve surface based on the section curve of cutter contact point method |
| 投稿时间：2016-11-24 修订日期：2016-12-13 |
| DOI： |
| 中文关键词: 锯切加工 不规则曲面 点云数据 截面线法 刀触点路径 最小曲率 锯片直径 |
| 英文关键词: sawing special-shaped curve surface point-cloud data section curve method cutter contact path minimum curvature saw blade diameter |
| 基金项目:基金项目：教育部创新团队项目（IRT15R45）；辽宁省自然科学基金（2014020069）；沈阳市科技项目（F16234708） |
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| 中文摘要: |
| 为获得更高的不规则曲面加工效率，本文研究一种基于刀触点路径截面线法的锯切加工工艺算法。该方法在点云数据的基础，通过截交面产生截交线；通过调整锯片直径、步长满足截面线最小曲率要求，拟合产生刀触点路径，计算刀位点路径。仿真实验表明，加工效率可提高5倍左右；实际加工实验表明，加工效率提高6倍。3D-Z轴定向模型分析表明，实际加工模型最大偏差4.005mm，平均偏差0.929mm，模型中不存在过切区域，满足工业生产要求；存在一定量的欠切区域，为后续研究奠定了良好基础。 |
| 英文摘要: |
| In order to achieve higher efficiency in irregular surface processing, a kind of sawing processing algorithm was studied based on cutter contact path section line method in this paper. The method based on the point cloud data was generated by intersecting surface intersecting line; By adjusting the blade diameter, step length meet minimum cross section line curvature, knife contact path fitting, calculate the knife site path. Simulation experiments show that machining efficiency can be improved about 5 times which is 6 times in the machining experiments actually. The analysis on 3 d-Z axis orientation model shows that the actual processing model of maximum deviation of 4.005 mm, 0.929 mm average deviation and there is no over cutting area in the model which meet the requirements of industrial production. There is a certain amount of owe cutting area and laid a good foundation for further research. |
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