修形齿轮成形磨削误差仿真分析  

Simulation analysis of form grinding error for modified gear

作　　者：夏政[1] 黄筱调[1] 袁鸿[1] 

机构地区：[1]南京工业大学机械与动力工程学院,江苏南京211816

出　　处：《计算机集成制造系统》2014年第4期873-879,共7页Computer Integrated Manufacturing Systems

基　　金：国家自然科学基金资助项目(51175242);"高档数控机床与基础制造装备"科技重大专项资助项目(2012ZX04002-041)~~

摘　　要：为进一步提高成形磨齿的齿形修形精度,提出了渐开线齿轮修形齿形通用算法模型。在齿轮齿廓法线方向上进行修形,建立了齿廓修形齿形一般数学模型。齿形修形后齿轮齿面变为非标准渐开线螺旋面,根据齿轮啮合原理,推导出针对修形齿轮磨削的成形砂轮截形的一般数学式。针对某型数控成形磨齿机床,以加工右旋斜齿轮为实例进行仿真加工分析。结果表明:所提齿形修形算法正确可行;由机床各轴间联动实现齿轮加工运动,磨削过程中由于存在齿轮磨削主导面,齿轮右侧齿槽误差分布情况优于左侧齿槽;齿轮齿形最大误差位于修形齿廓齿根过度区域。To improve the gear modified accuracy of form grinding, a general algorithm model of involutes gear modi- fication profile was proposed. A general mathematics model was established with the modification of profile on the normal direction. The gear teeth surface was turned into nonstandard involutes helicoids after the profile modifica- tion. Based on the principle of gear engagement, a general mathematics model of the form wheel section was deduced for the form grinding of modified gear. According to a numerical control form grinding machine, the simulation pro- cessing analysis was made by using dextral helical gear as an example. The result showed that the proposed algo- rithm was correct and feasible; the movement of gear machining was achieved by the linkage between each axes, and the error distribution of right teeth space was better than left which was due to the existence of dominate surface during the grinding process. The maximum error of modification profile was located in the transition region of root.

关 键 词：齿形修形 成形磨削 砂轮截形 计算机仿真 

分 类 号：TG659[金属学及工艺—金属切削加工及机床]