Machining clamp capable of clamping various shaft parts

The machining clamp comprises a sliding seat, clamping sliding blocks, an adjusting mechanism, a pressing block, an upper installation frame and a cushion block, an installation block is arranged in the middle of the sliding seat, the adjusting mechanism is installed on the installation block, the two clamping sliding blocks are installed on the adjusting mechanism, and the pressing block is installed on the upper installation frame. The two clamping sliding blocks can move face to face or oppositely by adjusting the adjusting mechanism, sliding grooves are formed in the sliding base and formed in the two sides of the installation block, sliding blocks matched with the sliding grooves are arranged at the bottoms of the clamping sliding blocks, the upper installation frame is arranged above the sliding base, a locking screw and a guide rod are installed on the upper installation frame, and the locking screw and the guide rod are arranged on the upper installation frame. The pressing block is fixedly installed