雅可比-旋量在模切机装配公差分析中的应用
Application of Jacobian-Torsor in Assembly Tolerance Analysis of Die-Cutting Machine
王皓 1徐旭松 2刘艳旭 3卢恒1
作者信息
- 1. 江苏理工学院机械工程学院,江苏 常州 213001
- 2. 江苏理工学院机械工程学院,江苏 常州 213001;江苏麒浩精密机械股份有限公司,江苏 宝应 225800
- 3. 江苏麒浩精密机械股份有限公司,江苏 宝应 225800
- 折叠
摘要
在模切纸品的生产过程中,为了减少或避免不合格品的出现,需对模切机弧切刀具的装配精度进行严格控制,将其刀尖偏移量限定在一定范围内,以保证纸品的切割质量.针对以上几何需求,研究了模切机中各个零部件间存在的连接、接触、配合方式,根据平面和圆柱特征的特点对特征元素进行公差旋量表达,将各旋量纳入雅可比矩阵中构建模切机的装配公差分析模型,并按极值法进行计算分析,得出影响刀尖偏差的敏感环,从而为公差优化提供依据.
Abstract
In order to reduce or avoid the emergence of unqualified products in the process of die-cutting paper production,the pre-cision of cutting tool on the die-cutting machine need to be strict provisioned,the offset of the tool tip is limited to a certain extent to guarantee the cutting quality.For the above geometric functional requirements,the connection,contact and cooperation be-tween the parts in the die-cutting machine were studied,the tolerance torsor for characteristic element were expressed according to the characteristic of the plane and the cylinder,the assembly tolerance analysis model of die-cutting machine was established by putting the torsor into jacobian matrix for uniform assembly tolerance analysis.The sensitive ring which affects the tool tip devia-tion is obtained by calculating and analyzing according to the extreme value method,which provides the basis for tolerance opti-mization.
关键词
公差分析/几何公差/雅可比-旋量/公差建模Key words
Tolerance Analysis/Geometric Tolerance/Jacobian-Torsor/Tolerance Modeling引用本文复制引用
基金项目
江苏高校"青蓝工程"资助()
江苏省研究生实践创新项目(SJCX20_1047)
出版年
2024
NETL
NSTL
万方数据