Adapter connecting rod machining clamp

The utility model discloses an adapter connecting rod machining clamp which comprises a chuck, first threaded holes arranged annularly are formed in the right side face of the chuck, a concave tool isarranged on the right side of the chuck, fixing holes are formed in the left side face of the concave tool, first fixing nails arranged annularly are arranged on the front face of the concave tool, and second threaded holes are formed in the right side face of the concave tool. The left end of each first fixing nail penetrates through the corresponding fixing hole and extends into the corresponding first threaded hole for threaded connection, a second threaded hole is formed in the upper surface of the concave tool, a pressing plate is arranged in the concave tool, an electromagnet is fixedlyconnected to the bottom face of the pressing plate, a first clamping block is arranged below the electromagnet, and a second clamping block is arranged below the first clamping block. And the upper surface of the first clampi