Development of On-Machine Measuring System for Pitch Deviation of Large Gears

Proceedings of the 2019 International Conference on Precision Machining, Non-Traditional Machining and Intelligent Manufacturing (PNTIM 2019) Pub Date : 2019-11-01 DOI:10.2991/pntim-19.2019.38

Guo Hongbin, He Dongfeng, Huang Feiyao, Yang Canhui

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Abstract

According to the processing principle of large-scale CNC gear hobbing machine, a high-precision on-machine measurement method for large gear pitch deviation using relative method and absolute method simultaneously is proposed. The mechanical body of high-precision on-machine measuring instrument with two-stage positioning system are designed to improve the positional accuracy of on-machine measurement. The system structure with upper and lower computers is proposed, which uses the high speed IO port of NC and Ethernet network for communication, so as to make full use of the function of NC system of gear hobbing machine. A large number of repeated experiments show that the range of 10 measurements of the pitch deviation and the cumulative deviation of the pitch in the developed machine are within 1/10 of the tolerance of the 3-grade precision worm specified in the national standard GB10089-88. Keywords-Component; on Machine Measurement; Pitch Deviation; Measuring Method; Side-by-side Construction

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大型齿轮节距偏差机上测量系统的研制

根据大型数控滚齿机的加工原理，提出了一种采用相对法和绝对法同时测量大齿轮节距偏差的高精度机上测量方法。为提高机内测量的定位精度，设计了高精度两级定位的机内测量仪的机械本体。提出了上、下位机的系统结构，利用数控高速IO口和以太网进行通信，充分发挥了滚齿机数控系统的功能。大量重复实验表明，所研制的机床螺距偏差的10次测量范围和累积偏差均在国家标准GB10089-88规定的3级精密蜗杆公差的1/10以内。Keywords-Component;对机测量;节距偏差;测量方法;一起建设

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Proceedings of the 2019 International Conference on Precision Machining, Non-Traditional Machining and Intelligent Manufacturing (PNTIM 2019)

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