一种被动柔顺控制的平面研磨力/位控制方法

闫雯; 黄玉美; 林文周; 穆卫谊

doi:10.13433/j.cnki.1003-8728.20190049

一种被动柔顺控制的平面研磨力/位控制方法

doi: 10.13433/j.cnki.1003-8728.20190049

1.
西安理工大学艺术与设计学院, 西安 710054
2.
西安理工大学机械与精密仪器工程学院, 西安 710048
3.
西安理工大学水利水电学院, 西安 710048

基金项目:

教育部人文社科青年项目 14YJCZH199

陕西省教育厅专项科研计划（人文社科类）项目 16JK1517

西安理工大学校博士启动金资助项目 106-451115001

详细信息

通讯作者:
闫雯(1980-), 讲师, 博士研究生, 研究方向为研磨加工及工艺, 产品设计, yanwen@xaut.edu.cn

中图分类号: TH39
计量
- 文章访问数: 359
- HTML全文浏览量: 146
- PDF下载量: 29
- 被引次数: 0
出版历程
- 收稿日期: 2018-11-20
- 刊出日期: 2019-06-01

A Passive Compliant Position/Force Control Method for Plane Grinding

1.
School of Art & Design, Xi'an University of Technology, Xi'an 710054, China
2.
School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China
3.
Institute of Water Resources and Hydro-electric Engineering, Xi'an University of Technology, Xi'an 710048, China

摘要

摘要: 针对平面研磨的加工特点和工艺要求，提出了一种基于被动柔顺控制的立式数控平面研磨机力/位控制方法。通过分析被动柔顺控制原理，建立了平面研磨加工的阻抗模型，进而得出能够使研磨加工处于动态平衡状态的工艺参数组，消除平面研磨中力与位的相互影响。试验结果表明该方法能够稳定控制研磨压力，定位精度良好，被加工件获得了较好的表面粗糙度，能够满足一般研磨的加工要求。与常用立式研磨机的控制方法相比，该方法能够在位置伺服状态下，避免使用专门的研磨压力控制设备，简化机床硬件和操作流程，提高加工效率，降低生产成本，具有良好的推广和应用前景。
- 力/位控制 /
- 柔顺控制 /
- 阻抗模型 /
- 压力控制
Abstract: A control scheme is put forward for vertical CNC (Computer numerical control) plane grinding machine based on passive compliant control, aiming at some technology characteristics and technological requirements of plane grinding. An impedance models for grinding is established by analyzing the principle of passive compliance control. According to the impedance model, a group of process parameters are derived that can make the grinding process in a dynamic balance. The results showed that the control of pressure is very stable, the positioning accuracy is good, and the surface roughness of workpiece is better. The results can satisfy the general grinding requests. Comparing with the common control methods of vertical grinding machine, the scheme can be used in position servo state and get rid of the special grinding pressure control equipment. It has a good prospect of popularization and application for simplifying the hardware equipment and operation process, improving the processing efficiency and reducing the production cost.
- force/position control method /
- compliant control /
- impedance models /
- pressure control

HTML全文

图 1 平面研磨阻抗模型

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图 2 立式研磨的位置平衡关系

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图 3 五轴平面研磨机床照片

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图 4 扭矩变化曲线

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图 5 工件研磨前后照片

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图 6 表面形貌检测

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图 7 粗糙度检测结果

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表 1 加工前后的工件尺寸检测数据

试件号	加工前高度/mm	加工后高度/mm	尺寸误差/μm
1	20.053 2	20.038 5	4.7
2	20.046 0	20.030 9	5.1
3	20.038 9	20.024 7	4.2

下载: 导出CSV

参考文献(16)

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