Multi-pipe joint clamp

The utility model provides a multi-pipe joint clamp, which can meet various angles of parts to be continuously machined by one-time clamping, improves the working efficiency, and is stable in clampingforce and not easy to scratch the joints at the same time. The device comprises a flange seat, the lower end of the flange seat is connected with a driving mechanism, a mounting seat is mounted at the upper end of the flange seat, the device is characterized in that a lower pressing plate which is adjusted up and down is arranged at the upper end of the mounting seat, and positioning blocks are arranged on the opposite side of the lower pressing plate and the edge of the mounting seat; a first bayonet corresponding to the downward pressing direction of the downward pressing plate is formed inthe middle and the end of the side wall of the mounting base respectively, an L-shaped supporting plate and a first limiting plate which are opposite are arranged on one side of the downward pressingplate and the flange base,