| 夹具的封闭性和工件的可分离性分析 |
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| 引用本文： | 刘雯林,熊蔡华.夹具的封闭性和工件的可分离性分析[J].华中科技大学学报(自然科学版),2003,31(8):7-9. |
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| 作者姓名： | 刘雯林 熊蔡华 |
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| 作者单位： | 1. 武汉科技大学城市建设学院
2. 华中科技大学机械科学与工程学院 |
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| 摘 要： | 论述了夹具的封闭性和夹紧点与夹紧域的问题．定义了自由运动锥，用以分析定位元件的布局对工件在夹具上的可达性和可分离性的影响，并导出可达性和可分离性条件．进一步导出了约束锥，即自由运动锥的极锥，并利用该锥确定夹紧点的位置和形封闭的可行夹紧域．
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| 关 键 词： | 夹具 自由运动锥 约束锥 可达性 可分离性 形封闭 |
| 文章编号： | 1671-4512(2003)08-0007-03 |
| 修稿时间： | 2002年12月24 |
Closure of fixtures and detachability of workpiece |
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| Liu Wenlin Xiong Caihua Liu Wenlin Lect., College of Urban,Wuhan Univ. of Sci. & Tech.,Whuan ,China..Closure of fixtures and detachability of workpiece[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2003,31(8):7-9. |
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| Authors: | Liu Wenlin Xiong Caihua Liu Wenlin Lect College of Urban Wuhan Univ of Sci & Tech Whuan China |
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| Institution: | Liu Wenlin Xiong Caihua Liu Wenlin Lect., College of Urban,Wuhan Univ. of Sci. & Tech.,Whuan 430070,China. |
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| Abstract: | The closure of fixtures, clamps and the clamping domain were discussed. A free motion cone used to judge whether the workpiece was accessible to the fixture as well as detachable from the fixture was defined. The accessibility and detachability conditions were given. According to the duality theory in convex analysis, a polar of the free motion cone, namely, the constrained cone, was derived. By using the constrained cone, the positions of clamps and the feasible clamping domain were determined where the workpiece was fully constrained. |
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| Keywords: | fixture free motion cone constrained cone accessibility detachability form closure |
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