适用于模具法加工的弧齿锥齿轮精确建模

Accuracy Three-dimensional Modeling of Spiral Bevel Gear Machining with Mold Processing Method

精确建立弧齿锥齿轮的三维模型,对弧齿锥齿轮的模具法加工具有重要的意义,如精锻成形、注塑成形、粉末冶金烧结成形等。建立机床加工坐标系,利用局部综合法设计齿轮副的加工参数,利用TCA/LTCA技术对加工参数进行验证。通过铣刀盘的锥面方程以及机床加工参数推导齿面方程,结合齿面的边界条件,得到齿面所在曲面上的关键数据点。利用三维造型软件,首先创建齿面曲面片,进而完成弧齿锥齿轮的三维造型。以一对弧齿锥齿轮为例,介绍了以上过程。

To build the accuracy three-dimensional model of spiral bevel gear is of great significance for spiral bevel gear machining with mold processing method,such as precision forging,injection molding,powder forming and so on.Setting up machining coordinates,machining parameter is designed with local synthesis,and the machining parameters are verified by using TCA /LTCA technology.With facing cutter cone equation,machining parameters,and tooth surface boundary conditions,the key data points on tooth surface are obtained.Using three-dimensional modeling software,tooth surface patches are created firstly,and then,three-dimensional model of spiral bevel gear is built.As an example,the above procedure is introduced with a pair of spiral bevel gear.