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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, 北京 100076
[ "刘勇(1980-), 男, 山西临县人, 本科, 高级工程师, 1999年于北方交通大学获得学士学位, 现为北京航空精密机械研究所项目经理, 主要从事精密坐标测量技术方面的研究.E-mail:13671176136@163.com" ]
[ "李昆(1986-), 男, 江西丰城人, 工程师, 2007年、2011年于北京工业大学分别获得学士、硕士学位, 现为北京航空精密机械研究所研发人员, 主要研究方向是数控系统技术和在机测量技术.E-mail:sunnyleeqq@163.com" ]
收稿日期:2017-06-01,
录用日期:2017-7-2,
纸质出版日期:2017-10-25
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刘勇, 李昆, 王帼媛. 激光在机测量系统的实现[J]. 光学 精密工程, 2017,25(10):2668-2675.
Yong LIU, Kun LI, Guo-yuan WANG. Implementation of laser on-machine measuring system[J]. Optics and precision engineering, 2017, 25(10): 2668-2675.
刘勇, 李昆, 王帼媛. 激光在机测量系统的实现[J]. 光学 精密工程, 2017,25(10):2668-2675. DOI: 10.3788/OPE.20172510.2668.
Yong LIU, Kun LI, Guo-yuan WANG. Implementation of laser on-machine measuring system[J]. Optics and precision engineering, 2017, 25(10): 2668-2675. DOI: 10.3788/OPE.20172510.2668.
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20
μ
m,测量时间为10 min。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。
A non-contact laser on-machine measuring system was developed to realize rapid on-machine measurement of complex curving parts such as blades in an aircraft engine. The mechanical structures and electronic controlling systems of the measuring system were introduced in detail. The laser on-machine measuring system is composed of laser sensors
wireless transmission circuits
a rechargeable lithium battery
transit bases
a handle and a shell
etc
. To rapidly switch the machining mode and measuring mode
the installation structure with a handle was adopted. When machining blade processing was switched into the on-machine measurement
the system could operate a tool change program
and the system might be taken out from the tool magazine to on-machine measuring mode. For the electronic control part of the measuring system
a data acquisition system of wireless transmission was developed. To verify the practicability and effectiveness of the on-machine measuring system
the experiment of scanning and measuring the blade section was executed on a 5-axis blade machining center. The experimental results show that the measuring precision is 20
μ
m and the measuring time is 10 min. As the results
it indicates that laser on-machine measuring system established in the paper realizes the measuring assignment of blade surfaces in a rapid and accurate manner.
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李建广, 张利, 王扬, 等.数控机床在线测量技术研究[J].航空制造技术, 2014(13): 38-42.
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毕超, 房建国, 刘京亮, 等.基于球形目标的激光位移传感器光束方向标定[J].光学 精密工程, 2015, 23(3): 678-685.
BI CH, FANG J G, LIU J L, et al.. Calibration of beam direction of laser displacement sensor based on spherical target[J]. Opt. Precision Eng., 2015, 23(3): 678-685. (in Chinese)
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