[1]赵 杨,陈 燕*,程 淼,等.电磁场作用下球形磁极辅助研磨弯管内表面研究[J].电镀与精饰,2020,(1):22-26.[doi:10.3969/j.issn.1001-3849.2020.01.005]
　ZHAO Yang,CHEN Yan*,CHENG Miao,et al.Study on the Inner Surface Finishing of Bend Pipe by Electromagnetic Fields Drive Spherical Magnetic Pole[J].Plating & Finishing,2020,(1):22-26.[doi:10.3969/j.issn.1001-3849.2020.01.005]
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电磁场作用下球形磁极辅助研磨弯管内表面研究()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2020年1
页码:
22-26
栏目:
出版日期:
2020-01-15

文章信息/Info

Title:
Study on the Inner Surface Finishing of Bend Pipe by Electromagnetic Fields Drive Spherical Magnetic Pole
作者:
赵 杨; 陈 燕*; 程 淼; 陈 松; 喻正好
辽宁科技大学 机械工程与自动化学院，辽宁 鞍山 114051
Author(s):
ZHAO Yang;  CHEN Yan*;  CHENG Miao;  CHEN Song;  YU Zhenghao
School of Mechanical Engineering and Automation, University of Science and Technology Liaoning, Anshan 114051, China
关键词:
弯管; 电磁场; 磁粒研磨; 轨迹构建; 研磨效率; 表面形貌
Keywords:
bend pipe;  electromagnetic field;  magnetic particle grinding;  trajectory rebuild;  grinding efficiency;  surface morphology
DOI:
10.3969/j.issn.1001-3849.2020.01.005
文献标志码:
A
摘要:
弯管弯曲成形后，在弯折处易产生微裂纹、褶皱等表面质量缺陷问题。本文通过采用六自由度机械手拖动电磁场发生装置沿加工轨迹往复运动，电磁场发生装置驱动球形辅助磁极绕管件内壁转动，实现了对弯管内表面的光整加工。在此基础上，通过对弯管轮廓采集及曲线拟合，重新构建了弯管中心线并转换为新的研磨加工轨迹。采用超景深3D电子显微镜和触针式表面粗糙度测量仪对研磨试验前后弯管内表面的形貌和粗糙度进行了对比分析。结果表明，通过重新构建研磨加工轨迹，试验装置有效解决了研磨弯折处的干涉与研磨不均匀等问题。研磨55 min后，表面粗糙度由原始的0.713 μm降低到0.194 μm，铜合金弯管内表面原始质量缺陷基本去除，表面纹理较为致密均匀。该方法有效避免了未规划研磨轨迹时出现的犁耕等纹理缺陷，提高了弯管的服役可靠性。
Abstract:
Surface quality defects such as microcracks and folds are easy to occur at the bending point after bending of bend pipe. In this paper, by using a six-degree-of-freedom manipulator to drive the electromagnetic field generator to move back and forth along the processing path, and the electromagnetic field generator to drive the spherical auxiliary magnetic pole to rotate around the inner wall of the tube, the inner surface finishing of the bend pipe is realized. On this basis, the center line of the bend pipe is reconstructed and transformed into a new grinding path by collecting the outline of the bend pipe and fitting the curve. The morphology and roughness of bend pipe before and after grinding test were compared and analyzed by using super depth-of-field 3D electron microscope and stylus surface roughness measuring instrument. The results show that by reconstructing the grinding trajectory, the experimental device effectively solves the problems of interference and uneven grinding at the grinding bend. After grinding for 55 min, the surface roughness decreased from 0.713 μm to 0.194 μm. The original quality defects on the surface of copper alloy bend pipes were almost removed, and the surface texture was compact and uniform. This finishing method effectively avoids the texture defects such as ploughing when the grinding trajectory is not planned, and improves the service reliability of bend pipe.

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备注/Memo

备注/Memo:
收稿日期： 2019-06-25；修回日期： 2019-07-22
通信作者： 陈燕， email： laochen412@gmail.com
基金项目： 国家自然科学基金(51775258)；辽宁省自然科学基金重点项目(20170540458)；精密与特种加工教育部重点实验室基金(B201703)；辽宁科技大学研究生教育改革与科技创新项目(LKDYC201806)
更新日期/Last Update: 2020-01-10