JPS6445547A - Position indexing device - Google Patents

Abstract

PURPOSE:To enable high speed drive and improve a deceleration property by supplying indexed bodies also from a second supply line in driving and driving them with high speed to perform deceleration at a first stage in which the supply from the second supply line is stopped and at a second stage in which an opening is controlled by a cam. CONSTITUTION:In the beginning of driving a drive motor 1, a contact piece 20 is separated from the surface of a cam 12 by a moving means to open a switch means 63 and supply fluid from both first and second supply lines 31, 66. Further, the opening of a variable throttle 47 is enlarged to increase a liquid supply amount and drive the drive motor 1 with high speed. On the other hand, in the stoppage of drive motor 1, the switch means 63 is first closed and deceleration is performed at the first stage in which the fluid supply of second supply line 66 is stopped. Next, when the contact piece 20 abuts against the surface of cam 12 and contacts a deceleration section 16 by the moving means, the deceleration at the second stage is performed by reducing the opening of variable throttle 47. When the contact piece 20 contacts a stop section 17 the variable throttle 47 is closed to stop the drive motor 1 and complete a position indexing operation.