Transactions of Materials and Heat Treatment

Title：Visual positioning system of flexible automatic feeder for aviation forging

Authors： Peng Yusheng Sun Yong Xu Chao Ling Yunhan

Unit： Beijing Research Institute of Mechanical ＆ Electrical Technology Ltd.

KeyWords： machine vision visual positioning flexible automatic feeding aviation forging round bar

ClassificationCode：TP23;TP31

year,vol(issue):pagenumber：2021,46(12):174-182

Abstract：

forging is a typical production mode of small batch and many varieties, and in the production, different materials and specifications of raw materials need to be changed frequently, which requires high flexibility of automatic feeder. Therefore, for the round bar commonly used in aviation forging, based on the existing automatic feeder, a flexible visual positioning system for round bar with multiple specifications and materials was designed, and the hardware of the positioning system was constituted by the imaging system composed of industrial visual camera and lenses, as well as the auxiliary equipment such as an external light source. On this basis, in order to meet the feeding requirements under various working conditions, the automatic exposure algorithm under different lighting conditions was designed, and the visual positioning algorithm suitable for round bar with different specifications and materials was studied to realize the accurate positioning of bar under different lighting conditions. The experimental results show that the vision positioning system can quickly and accurately locate the round bar with different materials and specifications under different working conditions, which meets the flexible requirements of the automatic feeder for round bar in aviation forging.

Funds：

国家科技重大专项（2018ZX04024-001）

作者简介：彭宇升（1997-），男，硕士研究生 E-mail：bitys@qq.com 通信作者：孙勇 (1971-), 男, 博士, 研究员 E-mail：sun_yong_89@163.com

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