Connecting rod big-end hole turning clamp

The invention discloses a connecting rod big-end hole turning clamp, and relates to the technical field of machining process technology equipment manufacturing. The connecting rod big-end hole turning clamp comprises a clamp body which is provided with a small-end locating pin and big-end supporting blocks. The clamp body is provided with a side locating block and a side clamping device respectively on the peripheries of the big-end supporting blocks. The side clamping device comprises a side clamping base and a side clamping block which is movably arranged on the side clamping base and provided with a V-shaped working surface, the side clamping base is provided with a puller bolt which penetrates through the side clamping base and is connected with the side clamping block in an abutting mode through threads, and the included angle of the V-shaped working surface of the side clamping block is 90 degrees. Compared with the prior art, when the connecting rod big-end hole turning clamp is used for clamping a con