• CN:11-2187/TH
  • ISSN:0577-6686

›› 2009, Vol. 45 ›› Issue (4): 148-154.

• 论文 • 上一篇    下一篇

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螺旋锥齿轮数控磨齿机机床空间误差与机床调整参数的关系

唐进元;李友元;周超;卢延峰   

  1. 中南大学机电工程学院
  • 发布日期:2009-04-15

Relation between CNC Bevel Gear Generator Spatial Errors and Machine Setting Errors

TANG Jinyuan;LI Youyuan;ZHOU Chao;LU Yanfeng   

  1. School of Mechanical and Electrical Engineering, Central South University
  • Published:2009-04-15

摘要: 为求得对各项机床调整参数影响较大的机床空间误差,分析螺旋锥齿轮加工过程中数控机床空间误差物理涵义,并建立七轴五联动数控磨齿机床空间误差模型。基于齐次变换矩阵方法建立机床空间误差与机床调整参数之间的几何等量关系,推导出两者间的关联函数并进行分析。通过实例分析,发现对机床刀位调整值影响较大的机床空间误差主要是三直线轴垂直度误差和x轴沿z向垂直度误差;对机床轮位调整值影响较明显的机床空间误差为z轴、B轴沿x向直线度误差以及A轴的安装距误差。为机床调整参数优化及螺旋锥齿轮几何误差补偿提供了理论依据。

关键词: 调整参数, 机床空间误差, 计算机数字控制, 螺旋锥齿轮

Abstract: In order to obtain the error terms causing great machine setting errors, the physics meaning of spiral bevel generator spatial errors are analyzed, and the geometrical model of machine spatial errors are built. Based on transformation matrices the geometric relations of machine settings and machine spatial errors are obtained. It’s found that the straightness error of axis x and perpendicularity error between axis x and axis y can bring great error to machine tool position settings, and the straightness errors of axis z and axis B, position error of axis A can bring great setting error to workpiece position settings. It provides theoretical foundation for optimization of machine settings and error compensation of spiral bevel gears.

Key words: Computerized numerical control, Machine settings, Machine spatial errors, Spiral bevel gear

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