バレルカム式インデックステーブルの運動解析(第1報)

バレルカムの回転方向

抄録

Because of the circular motion of the follower(s), the movement of the follower in a right angle barrel cam mechanism is different from the cam profile curve. The difference is not negligible when the number of index is small and the pressure angle is large.
The cam allows two rotating directions. When the cam rotates in the "out-to-in " or " keylock " direction, the acceleration time is decreased and the deceleration time is increased, while the peak value of the pressure angle appears during the acceleration time. In the reverse direction, it is quite the contrary and the peak pressure angle appears during the deceleration time. In order to prevent the vibration of the table after indexing, the " out-to-in " direction is better.