Mounting bracket jig for spare and accessory parts of machine tool

The utility model discloses a machine tool spare and accessory part installation support jig which comprises a bottom plate, the top of the bottom plate is fixedly connected with a clamping plate, sliding rods are arranged in the clamping plate in an up-down symmetrical mode, the two ends of the outer side of each sliding rod are symmetrically connected with first sliding blocks in a sliding mode, the number of the first sliding blocks is two, and the first sliding blocks are arranged in the clamping plate. A first clamping block is arranged on one side of one first sliding block, a second clamping block is arranged on one side of the other first sliding block, a first rack and a second rack are arranged at the tops of the two first sliding blocks correspondingly, and a first anti-skid pad and a second anti-skid pad are arranged to effectively conduct clamping and skid prevention on a support workpiece and can protect the shape of a support. According to the bracket clamping device, the appearance is prevente