同心连接器的力学性能测试技术和系统研究

发布时间：2018-08-29 17:43

【摘要】：为了能快速测量同心连接器插拔过程中的力学性能和准确评价机械寿命,研制了一种同心连接器的力学性能测试系统。该系统主要由运动模拟的机械装置和传感测量与电机控制的测控子系统组成,具有四路同步自动测试能力;根据连接器测试标准分析系统的性能指标,提出一种直线运动与旋转运动相结合的测试方法,使测试条件更加符合连接器真实使用情况;同时设计出具有自适应能力的柔性夹具,减少安装误差对测试结果的影响;对运动模拟机构进行建模分析研究,在极限速度条件下确定插拔循环周期内直线与旋转运动配合时序。对连接器样品进行单次和多次插拔测试,分析数据得到了连接器的力学性能并对机械寿命评估验证,实验结果表明该系统满足测试要求且能得到预期效果。
[Abstract]:In order to measure the mechanical properties of concentric connectors and evaluate the mechanical life accurately, a testing system for the mechanical properties of concentric connectors was developed. The system is mainly composed of mechanical device of motion simulation and measurement and control subsystem of sensor measurement and motor control, and has the ability of four-channel synchronous automatic test, the performance index of the system is analyzed according to the test standard of connector, A test method combining linear motion and rotation motion is proposed to make the test conditions more suitable for the real use of connectors, and a flexible fixture with adaptive capability is designed to reduce the influence of installation error on the test results. The modeling and analysis of motion simulation mechanism is carried out, and the time series of straight line and rotation motion in the cycle of insert and pull are determined under the condition of limit velocity. The mechanical properties of the connector were analyzed and the mechanical life of the connector was evaluated and verified. The experimental results show that the system can meet the test requirements and achieve the desired results.
【作者单位】：重庆邮电大学先进制造工程学院;北京邮电大学自动化学院;
【基金】：重庆市科学技术委员会(CSTC2015jcyj BX0066)项目资助
【分类号】：TM503.5

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