Positioning device for punching of aluminum template

The utility model discloses a positioning device for aluminum template punching, which comprises a working table and an inserting part, the front side surface and the rear side surface of the working table are provided with mounting feet, the left side surface and the right side surface of the working table are provided with four positioning parts which are symmetrically distributed, each positioning part comprises a positioning block, the positioning block is provided with a mounting groove, and the inserting part is arranged in the mounting groove. A limiting block is connected to the mounting groove in a sliding manner; compared with the prior art, the fixture on the positioning device is inserted and mounted through the insertion plate structure formed by the fixing plate and the clamping plate and the insertion parts on the two sides of the workbench, the aluminum template is clamped and fixed through the corner cylinder when the positioning device is used, and the corner cylinder is fixed to the fixing