Modeling and Optimizing of Static Chucking Accuracy of Power-Operated Wedge Hook Chuck

doi:10.7652/xjtuxb201303017

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Modeling and Optimizing of Static Chucking Accuracy of Power-Operated Wedge Hook Chuck

更新时间：2025-07-09

- Modeling and Optimizing of Static Chucking Accuracy of Power-Operated Wedge Hook Chuck
- Vol. 47, Issue 3, Pages: 90-95(2013)
- 作者机构：
  
  清华大学精密仪器与机械学系,北京,100084
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201303017
  CLC： TG506.1;TG751.1
- Online First：10 March 2013，
  
  Published：2013
- 稿件说明：
移动端阅览
Modeling and Optimizing of Static Chucking Accuracy of Power-Operated Wedge Hook Chuck[J]. 2013, 47(3): 90-95.
DOI：

Modeling and Optimizing of Static Chucking Accuracy of Power-Operated Wedge Hook Chuck[J]. 2013, 47(3): 90-95. DOI： 10.7652/xjtuxb201303017.

摘要

为了提高液压动力卡盘的设计及制造精度

基于小位移旋量的方法

考虑4个精度指标及9项一致性的因素后

采用多体理论建立了楔式动力卡盘的静态夹持精度模型。基于该模型

采用蒙特卡罗方法对批量生产条件下的卡盘的静态夹持精度、单个卡盘的重复静态夹持精度

以及高爪配车后的定心精度进行了分析

定量地阐述了各因素对卡盘静态夹持精度的影响程度

进而针对线性化处理后的精度模型

以成本最小化为目标函数

提出了使用遗传算法进行精度综合的方法。研究表明

对于型号为KT55200的卡盘

当楔心套和盘体的配合间隙控制在10 μm以内时

高爪配车才能有效提高卡盘的重复定心精度

通过一致性控制向量寻优进行精度综合

可降低19%的生产成本。

Abstract

To improve the static chucking precision of power-chuck

considering four precision parameters and nine consistency factors

the tolerance of modeling method combining multi-body system theory is introduced. The repositioning precision analysis of single chuck

key factors of the consistency control and the centering accuracy of the turning top jaws are quantificationally described with this model. For the chuck KT55200

only when the interval between chuck body and wedge plunger is limited within 10 μm

the method of turning top jaws efficiently improves the centering accuracy. The general specification is once introduced in genetic algorithm

and the manufacturing cost can be lowered by 19%.

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references

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