Gripper structure for tool changing of machine tool

The invention provides a gripper structure for tool changing of a machine tool. The gripper structure comprises a robot end connecting flange, a floating mechanism and an electric actuator. The floating mechanism comprises a flange mounting plate, a limiting seat, a mounting seat, a clamping jaw connecting flange, a spring and a ball plunger; a sliding groove is formed in the outer side wall of the clamping jaw connecting flange, a mounting hole is formed in the lower portion of the mounting base, and the ball head plunger penetrates through the mounting hole in the mounting base and extends into the sliding groove. The limiting base is located in the mounting base, the top of the limiting base is clamped in a clamping groove formed in the inner wall of the mounting base, and the lower portion of the limiting base is embedded into the clamping jaw connecting flange. The spring is mounted between the limiting seat and the clamping jaw connecting flange; two opening and closing movement blocks are arranged on t