Multifunctional fixing tool for machining

The utility model discloses a multifunctional fixing tool for machining, which belongs to the technical field of machining and comprises a base, the top of the base is slidably connected with a slider, and the top of the base and the top of the slider are respectively provided with a chute; the clamping assembly comprises two clamping blocks which are oppositely arranged, arc-shaped grooves are formed in one sides of the clamping blocks, the sides, away from the arc-shaped grooves, of the clamping blocks are planes, the bottoms of the clamping blocks are rotationally connected with supporting blocks, the two supporting blocks are slidably connected with the two sliding grooves correspondingly, and springs are fixedly connected between the supporting blocks and the sliding grooves; the fixing assembly comprises a fixed plate and a movable plate, the fixed plate is fixedly connected to the top of the base, the movable plate is fixedly connected to the top of the sliding block, and the two clamping blocks are lo