激光在机测量系统的实现

发布时间：2018-11-29 08:17

【摘要】：为了能在加工航空发动机关键零部件(如叶片)等复杂曲面零件的过程中实现快速在机测量,研制了非接触式激光在机测量系统。分别介绍了测量系统的工作原理,机械结构和电控系统。该系统主要由激光测头、无线传输电路、可充电锂电池、转接基座、刀柄和外壳等部分组成。为了实现机床的加工模式与测量模式之间的快速切换,其采用刀柄式的安装方式,从加工叶片切换到在机测量时,机床只要运行换刀程序,即可实现叶片加工到叶片测量的转换。此外文中还针对在机测量系统的电控部分研制了通过无线传输的数据采集系统。为了验证所研制的在机测量系统的实用性和有效性,在五轴叶片加工中心上进行了叶片截面测量实验,结果显示其测量精度为20μm,测量时间为10min。验证结果表明所研制的激光在机测量系统能够高效精确地完成叶片型面的测量任务。
[Abstract]:A non-contact laser in-machine measurement system is developed in order to realize the fast in-machine measurement in the process of machining the key parts (such as blades) of aero-engine. The working principle, mechanical structure and electronic control system of the measuring system are introduced respectively. The system consists of laser probe, wireless transmission circuit, rechargeable lithium battery, transfer base, knife handle and shell. In order to realize the fast switching between the machining mode and measuring mode of machine tool, the tool only needs to run the tool changing program when the blade is switched from the machining blade to the measuring machine when the tool holder is installed. The conversion of blade processing to blade measurement can be realized. In addition, a wireless data acquisition system is developed for the electronic control part of the in-machine measurement system. In order to verify the practicability and effectiveness of the developed measuring system, a blade section measurement experiment was carried out on a five-axis blade machining center. The results show that the measuring accuracy is 20 渭 m and the measuring time is 10 min. The experimental results show that the laser in situ measurement system can efficiently and accurately measure the blade profile.
【作者单位】：北京航空精密机械研究所精密制造技术航空科技重点实验室;
【基金】：国家科技重大专项资助项目(No.2013ZX04011031)
【分类号】：TG659;V263

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