Journal of South China University of Technology (Natural Science Edition) ›› 2014, Vol. 42 ›› Issue (9): 30-34,40.doi: 10.3969/j.issn.1000-565X.2014.09.006

• Mechanical Engineering • Previous Articles     Next Articles

Motion Control Method of Spatial Surface Grinding for Knives and Scissors

Jiao Qing- song1,2 Li Di1 Wang Shi- yong1 Kong Xiang- hong1   

  1. 1.School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China; 2.School of Economics and Commerce,South China University of Technology,Guangzhou 510006,Guangdong,China
  • Received:2014-05-09 Revised:2014-06-26 Online:2014-09-25 Published:2014-08-01
  • Contact: 焦青松(1972-)，男，博士生，主要从事高性能嵌入式控制系统研究． E-mail:ecqsjiao@scut.edu.cn
  • About author:焦青松(1972-)，男，博士生，主要从事高性能嵌入式控制系统研究．
  • Supported by:

    国家“863” 计划项目(2012AA040909);华南理工大学中央高校基本科研业务费专项资金资助项目(2014ZM0014，x2jmD2118150)

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Abstract:

In order to realize the surface grinding of complicated and specially- shaped knives and scissors,a multi- axismotion control method is proposed for spatial surface grinding.Based on the characteristics of surface grinding andhorizontal surface grinder,the functional relationship between machining parameters and process parameters isestablished.The machining parameters include radial feed,axial feed and rotation angle,and the process parame-ters includes grinding depth of top surface,grinding depth of bottom surface and grinding width.Then,the jointcontrol of one rotational axis and two translational axes is realized by taking into account surface projection rules．Based on the proposed control method,a computer numerical control (CNC) system is developed,which supportsthe mixed 2D graphic and parametric user programming.Finally,the CNC system is employed to develop a proto-type of numerical control surface grinder,and grinding experiments are performed by using the surface grinder.Theresults show that the surface grinder is able to manufacture various kinds of knives and scissors and is superior to ahydraulic surface grinder in terms of efficiency and quality.

Key words: surface grinding, numerical control, interpolation, knives and scissors

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