| 摘要 |
PURPOSE:To reduce the size of a robot arm by forming a heat sink cylinder at the rear end of a step motor, and disposing an IC containing drive circuit in the cylinder. CONSTITUTION:A housing 5 which contains a planetary gear type deceleration mechanism 4 through a bearer 3 on an upper cover 2 at the front end of a disc type step motor 1, and an output shaft 6 is projected from the housing 5. A cylindrical heat sink cylinder 8 is clamped by a screw 9 at a lower cover 7 at the rear end of the motor 1, and a disk type printed board 11 of an IC containing drive circuit 10 is mounted through a spacer 12 on the bottom in the cylinder 8. |
