基于接触式压脚的机器人制孔垂直度优化研究
作者:
作者单位:

1.浙江大学机械工程学院浙江省先进制造技术重点研究实验室,杭州310027;2.沈阳飞机工业(集团)有限公司,沈阳110034;3.杭州艾美依航空制造装备有限公司,杭州310018

作者简介:

通讯作者:

郭英杰,男,助理研究员,E-mail:zju_gyj@zju.edu.cn。

中图分类号:

V 262.4;TP 242.2

基金项目:

国家自然科学基金(52105535)。


Optimization of Robot Drilling Perpendicularity Based on Contact-Type Pressure Foot
Author:
Affiliation:

1.Key Laboratory of Advanced Manufacturing Technology of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China;2.Shenyang Aircraft Corporation, Shenyang 110034, China;3.Hangzhou AME Aerospace Manufacturing Equipment Corporation Limited, Hangzhou 310018, China

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    摘要:

    针对传统非接触式法向校正技术在弱刚性薄壁上的不足,在接触式压脚结构的基础上对传统法向校正方案进行了研究,提出一种仅适用于接触式压脚结构的两点校正算法,同时设计了一套基于激光跟踪仪的法向测量系统标定方法。针对弱刚性薄壁受到压脚单向压紧力产生回退对制孔位置精度的影响,提出一种工具中心点(Tool center point, TCP)变位补偿技术,该技术利用激光位移传感器监测壁板回退量,在法向校正前动态调整TCP位置,实现对壁板回退量的实时补偿。搭建试验平台并通过制孔试验验证了接触式法向校正技术与TCP变位补偿技术可有效保证孔的垂直度与孔位精度,实现孔垂直度误差小于0.25°,孔位偏差小于0.4 mm。

    Abstract:

    Since traditional non-contact normal vector correction schemes cannot perform well on thin panels with weak rigidity, traditional normal vector correction schemes are studied based on the contact-type pressure foot structure, and a two-point correction algorithm suitable for this structure is proposed. A calibration method for the contact-type pressure foot’s normal vector measurement system is designed. Since the elastic deformation on thin panels with weak rigidity under unidirectional pressure can impact the hole position accuracy, a tool center point(TCP) displacement compensation technology is proposed. This technology uses laser displacement sensors to monitor the amount of panels’ setback and dynamically adjusts the TCP position before normal vector correction, thereby achieving real-time compensation for panels’ setback. The test platform is built and the hole-making test verifies that the contact-type normal vector correction technology and the TCP displacement compensation technology could effectively ensure the perpendicularity and position accuracy of holes. The perpendicularity error of holes is less than 0.25° and the position deviation is less than 0.4 mm.

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引用本文

连哲楠,郭英杰,霍超,赵树滨,董辉跃.基于接触式压脚的机器人制孔垂直度优化研究[J].南京航空航天大学学报,2023,55(3):418-426

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  • 收稿日期:2022-03-27
  • 最后修改日期:2022-04-30
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  • 在线发布日期: 2023-06-05
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