双靠模凸轮曲线的计算机辅助设计

• 作 者: 万尚志 肖朝阳 肖汉荣
• 机 构: 福建宁化革新机器厂,福建宁化革新机器厂,福建宁化革新机器厂,
• 出 处: 机械工程师
• 发表日期: 1990年01期
• 关键词: 极径 凸轮 加工工艺要求 计算机辅助设计 加工难度 凸轮曲线 槽形 外壁 滚子 等距线

圆盘缝合机中有两个凸轮(图1为其中之一),其槽形中要通过半径为 r_0的滚子,精度要求高,加工难度大。根据加工工艺要求,要在车床或铣床上成批加工凸轮产品,必须先做出靠模凸轮。从图1中可以看到,产品凸轮槽形的外壁曲线是内壁曲线的等距线。但在不同的极径方向上,其内、外壁曲线的极径差是不相等

Disc calender has two cams (Figure 1 is one of them), the groove shape to pass the r0 radius of the roller, high precision, difficult processing. According to the processing requirements, to be processed in the lathe or milling machine batch of cam products, you must first make cam mode. As can be seen from Figure 1, the outer curve of the product cam groove is the equidistant line of the inner wall curve. However, in different polar directions, the diameter difference between the inner and outer wall curves is not equal