Positioning clamp for triangular workpiece

The utility model relates to a positioning clamp for a triangular body workpiece, which comprises a bottom support, a fixed seat is arranged on the bottom support, the fixed seat is matched with a sliding seat which is transversely and slidably connected to the bottom support, a pressing plate is hinged to the sliding seat and can press and limit the inclined side edge of the triangular body workpiece, and the positioning clamp further comprises a clamping mechanism arranged on the bottom support. The end face of a workpiece can be clamped through the two clamping plates which synchronously move oppositely or relatively, it is ensured that the workpiece is located in the center of the clamp, the stability of workpiece clamping is improved, a mechanism for pressing the workpiece is additionally arranged, the workpiece is clamped when being horizontally placed through the two lower pressing plates, the applicability of the workpiece placing position is improved, and the clamping efficiency is improved. The mech