| Some Key Technologies of a New-type CNC Curve Grinding Machine |
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| 作者姓名： | 吴琦 胡德金 |
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| 作者单位： | School of Mechanical Eng. Shanghai Jiaotong Univ.，School of Mechanical Eng.，Shanghai Jiaotong Univ.，Shanghai 200030 China，Shanghai 200030 China |
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| 基金项目： | Shanghai Science and Technology Foundation of China (No.021111125) |
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| 摘 要： | This paper presented a new-type CNC curve grinding machine, in order to conquer the disadvantages of conventional NC curve grinding machine and improve surface quality, dimensional accuracy and machining efficiency. The new-type grinder adopts some high and new technologies: ① the normal tracing device could make grinding wheel coincide with the normal direction of the machining points in work piece, and improve surface quality and dimensional accuracy; ② the digital image on-line recognition system could monitor machining process and compensate wheel wear in real time; ③ linear motor drive mechanism could realize the exact adjustment of the grinding head digitally and increase the machining efficiency. The math models of normal tracing and circular tolerance zone were presented. The experimental results show that the new-type CNC curve grinding machine equipped with the three devices mentioned above is easy to realize the precision grinding of any complex curve, and improve surface quality, dimensional accuracy and machining efficiency.
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| 关 键 词： | 图象识别 线性电动机 曲线碾磨 重要技术 |
| 文章编号： | 1007-1172（2007）01-0116-05 |
| 修稿时间： | 2005-08-31 |
Some Key Technologies of a New-type CNC Curve Grinding Machine |
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| WU Qi,HU De-jin.Some Key Technologies of a New-type CNC Curve Grinding Machine[J].Journal of Shanghai Jiaotong university,2007,12(1):116-120. |
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| Authors: | WU Qi HU De-jin |
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| Institution: | School of Mechanical Eng. , Shanghai Jiaotong Univ. , Shanghai 200030, China |
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| Abstract: | This paper presented a new-type CNC curve grinding machine, in order to conquer the disadvantages of conventional NC curve grinding machine and improve surface quality, dimensional accuracy and machining efficiency. The new-type grinder adopts some high and new technologies:①the normal tracing device could make grinding wheel coincide with the normal direction of the machining points in work piece, and improve surface quality and dimensional accuracy;②the digital image on-line recognition system could monitor machining process and compensate wheel wear in real time;③linear motor drive mechanism could realize the exact adjustment of the grinding head digitally and increase the machining efficiency. The math models of normal tracing and circular tolerance zone were presented. The experimental results show that the new-type CNC curve grinding machine equipped with the three devices mentioned above is easy to realize the precision grinding of any complex curve, and improve surface quality, dimensional accuracy and machining efficiency. |
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| Keywords: | normal tracing image recognition linear motor curve grinding key technology |
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