HANDLING DEVICE FOR WIRE ELECTRIC DISCHARGE MACHINES

摘要

A wire electric discharge machine for machining a workpiece includes a handling device for handling core pieces produced by the machine during the machining of the workpiece and upper and lower wire guiding heads moveable with respect to each other and with respect to the workpiece. The handling device includes a gripper mounted in a fixed or movable relation to the upper wire guiding head. The gripper moves so as to face a produced core piece with its gripper base. The gripper includes a fluid inlet where fluid flow under positive pressure enters the gripper and a fluid outlet at the gripper base where the fluid flow exits the gripper. An interior of the gripper guides the fluid flow, producing a low pressure region at the gripper base as the fluid flow exits, generating lifting force to remove the produced core piece from the workpiece by movement of the gripper.

主权项

1. A wire electric discharge machine for machining a workpiece, comprising:
a handling device configured to handle core pieces produced by the wire electric discharge machine during the machining process of the workpiece; and an upper wire guiding head and a lower wire guiding head that are moveable with respect to each other and with respect to the workpiece, wherein the handling device comprises a gripper mounted in a fixed or movable relation to the upper wire guiding head, the gripper configured to be moved so as to face a produced core piece with its gripper base, wherein the gripper comprises a fluid inlet configured to permit a fluid flow under positive pressure to enter the gripper, and a fluid outlet at the gripper base configured to permit the fluid flow under positive pressure to exit the gripper, wherein an interior of the gripper is configured to guide the fluid flow to produce a low pressure region at the gripper base as the fluid flow exits the gripper at the fluid outlet so as to generate a lifting force on the produced core piece to remove the produced core piece from the workpiece by movement of the gripper.