Multifunctional clamp for mechanical manufacturing

The invention discloses a multifunctional clamp for mechanical manufacturing. The multifunctional clamp comprises a mounting plate, wherein a connecting plate is arranged on the upper surface of the mounting plate, and a rotating disc is arranged on the upper surface of the connecting plate; a bearing is arranged in the middle part of the lower surface of the rotating disc, and the rotating disc is rotationally connected with the connecting plate through the bearing; two first fixing plates are arranged on the upper surface of the rotating disc, and the two first fixing plates are symmetrically arranged; the upper surface of the rotating disc is provided with a second sliding groove, and the second sliding groove is positioned in the middle part between the two first fixing plates; the upper surface of the rotating disc is provided with a third fixing plate, and the third fixing plate and the second sliding groove are in equal-angle distribution; and a sliding block is arranged on thelower surface of the thir