HYDRAULIC CONTROL UNIT

摘要

A hydraulic control and execution unit for rotational movement transmission to the main spindle of the machine-tool, in both directions, and the rest position of the main spindle. The hydraulic control and execution unit is made-up of a hydraulic control unit under the form of plates fixed on the wall of the gearbox housing by screws on which the three-position electrodistributor and the system pressure regulating valve are mounted and a shaft with polyhedral profile on which two hydraulic clutches are mounted as execution elements for transmitting one rotational direction or the other and for the rest position of the main spindle, without stopping the main drive motor of the machine-tool.