Automatic double-station clamp for machining flange

The utility model discloses an automatic double-station clamp for machining a flange. The automatic double-station clamp comprises a base plate. A first clamp body and a second clamp body are arranged on the base plate. A first lifting plate is arranged on the first clamp body. A guide mechanism is arranged between the first clamp body and the first lifting plate. A guide mechanism for assembling the flange is arranged on the first lifting plate. At least three compressing mechanisms are arranged on the first clamp body, and at least two anti-rotating pins are correspondingly arranged on the first clamp body. A second lifting plate is arranged on the second clamp body. A guide mechanism is arranged between the second clamp body and the second lifting plate. An expansion device is arranged on the second clamp body in the mode of corresponding to a central hole of the flange. A lateral limiting device is arranged at the position, on one side of the flange, of the second clamp body. Supporting mechanisms for supporting the flange are arranged on the second clamp body. The automatic double-station clamp is rapid and convenient to operate, high in clamping efficiency, high in machining accuracy and stable and reliable in clamping.