轴颈外圆磨削成圆过程的双转子耦合模型及仿真算法

doi:10.3901/JME.2019.21.170

机械工程学报 ›› 2019, Vol. 55 ›› Issue (21): 170-177.doi: 10.3901/JME.2019.21.170

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轴颈外圆磨削成圆过程的双转子耦合模型及仿真算法

熊万里¹, 陈建华¹, 丁文祥¹, 曾旭¹, 郑良钢²

1. 湖南大学国家高效磨削工程技术研究中心长沙 410082;
2. 湖南海捷主轴科技有限公司长沙 410082

收稿日期:2019-04-28 修回日期:2019-10-11 出版日期:2019-11-05 发布日期:2020-01-08
通讯作者: 熊万里(通信作者),男,1971年出生,博士,教授,博士研究生导师。主要研究方向液体静压主轴技术、高速电主轴系统动力学及高速大功率电机技术。E-mail:wan369@vip.sina.com
作者简介:陈建华,男,1995年出生,硕士研究生。主要研究方向为磨削系统动力学。E-mail:1711014553@qq.com
基金资助:
国家自然科学基金（61527803）和四川省重点研发（2018GZ0047）资助项目。

Dual-rotor Coupling Model and Simulation Algorithm for Round Journal Grinding Process

XIONG Wanli¹, CHEN Jianhua¹, DING Wenxiang¹, ZENG Xu¹, ZHENG Lianggang²

1. National Engineering Research Center for High Efficiency Grinding, Hunan University, Changsha 410082;
2. Hunan Haijie Spindle Technology Co. Ltd, Changsha 410082

Received:2019-04-28 Revised:2019-10-11 Online:2019-11-05 Published:2020-01-08

摘要/Abstract

摘要： 主轴轴颈外圆的圆度对机床主轴部件的回转精度具有直接而重要的影响。磨削加工是实现轴颈外圆高精度加工的最重要的手段。虽然磨削技术在主轴外圆加工上已长期应用，但是利用现有的研究成果，还难以对一个既定的磨削系统的磨削成圆过渡过程进行完整有效的定量仿真，也难以对磨削工件的最终圆度进行科学合理的预测。在吸收国内外磨削转子系统模型成果的基础上，进一步考虑外圆磨削过程中砂轮和工件之间的相互耦合作用、材料去除、转子振动及变形协调规律，建立了外圆磨削系统的双转子耦合振动模型，提出了模拟轴颈材料去除和圆度变化的"磨削力-瞬时磨削深度"迭代算法。利用所建立的双转子模型和迭代算法，对不同磨削策略下轴颈外圆成圆的过渡过程进行了定量仿真，再现了轴颈材料去除和外圆轮廓变化的全过程；比较研究了不同磨削策略对磨削效率和最终加工圆度的影响规律。进行了相应的磨削试验和对比验证，试验结果证实了所提出的轴颈外圆磨削的双转子模型和迭代算法的有效性和合理性。

关键词: 外圆磨削, 轴颈, 成圆过程, 双转子耦合模型, 仿真算法, 磨削策略

Abstract: Shaft journal roundness directly effects machine tool spindle rotational accuracy. Since grinding has been applied in journal machining for a long time, it is an important method to achieve high precision journal machining. However, based on existing research results, it is difficult to perform effective complete quantitative simulations for the journal profile grinding process of a given grinding system, and it is also hard to make scientific and reasonable prediction for the finishing roundness. Based on the conventional grinding rotor system model, the grinding wheel-workpiece coupling effect, material removal, rotor vibration and compatibility functions, a new dual-rotor vibration grinding system model is established. A novel "transient grinding force-depth" iterative algorithm is proposed to simulate the material removal and the roundness variation. Using the model and the algorithm, the journal rounding process under different grinding strategies are quantitively simulated. The material removal processes and profile changing procedure are reproduced in the calculation. The grinding strategy effects on grinding efficiency and finishing roundness are studied. Comparative experiments are performed, and the proposed method is validated by the test results.

Key words: cylindrical grinding, journal, rounding process, double-rotor coupling model, simulation algorithm, grinding strategy

中图分类号:

TH133
TG584

熊万里, 陈建华, 丁文祥, 曾旭, 郑良钢. 轴颈外圆磨削成圆过程的双转子耦合模型及仿真算法[J]. 机械工程学报, 2019, 55(21): 170-177.

XIONG Wanli, CHEN Jianhua, DING Wenxiang, ZENG Xu, ZHENG Lianggang. Dual-rotor Coupling Model and Simulation Algorithm for Round Journal Grinding Process[J]. Journal of Mechanical Engineering, 2019, 55(21): 170-177.

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轴颈外圆磨削成圆过程的双转子耦合模型及仿真算法

Dual-rotor Coupling Model and Simulation Algorithm for Round Journal Grinding Process

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