论文部分内容阅读
为了实现弧齿锥齿轮高效齿顶倒棱加工,探索了球面刀具在通用加工中心上倒棱加工的可行性。创建了齿轮和刀具的实体模型,基于实体模型的碰撞分析,获得了倒棱加工参数的初始值。为了保证倒棱形状精度满足要求,提出了一种形状误差的定量测量方法。以倒棱形状误差最小化为目标,优化了倒棱加工参数。建立了倒棱加工的三轴、四轴和五轴仿真加工模型,仿真结果表明,采用球面刀具在三轴加工中心上可完成倒棱加工。若采用四轴或五轴加工中心,可利用多余的运动自由度控制刀具的切削位置,将刀具上不参与切削的部分去除后,刀具形状可由圆球简化为圆盘,五轴加工对应的刀具周长比四轴加工更长,相同转速下耐磨性更好。
In order to realize high-efficiency tooth top chamfering of spiral bevel gear, the feasibility of chamfering processing of spherical tool on general machining center was explored. A solid model of gears and tools was created. Based on the collision analysis of the solid model, the initial values of chamfering parameters were obtained. In order to ensure the chamfer shape accuracy to meet the requirements, a quantitative measurement method of shape error is proposed. In order to minimize the chamfer shape error, the chamfering parameters are optimized. The three-axis, four-axis and five-axis simulation models of chamfering machining are established. The simulation results show that the chamfering can be accomplished by using the spherical tool on the three-axis machining center. If the use of four-axis or five-axis machining center, you can use the extra degree of freedom of motion control cutting tool position, the tool does not participate in the removal of the cutting part, the tool shape can be reduced from the ball to a disc, five-axis machining tool Perimeter longer than the four-axis machining, the same speed wear better.