Positioning device for USB die

The utility model relates to the technical field of USB (universal serial bus) dies, in particular to a positioning device for a USB die, which comprises a mounting frame, a turnover mechanism is arranged between the mounting frame and a working frame, and mounting racks which are identical in structure and are correspondingly distributed are fixedly arranged at four corners of the top and four corners of the bottom of the mounting frame. The eight mounting frames are each provided with two mounting grooves of the same structure, through grooves of the same structure are formed in the two corresponding side walls of the working frame, two clamping frames which are of the same structure and are correspondingly distributed are movably arranged between the two corresponding inner walls of the working frame, and a supporting plate is fixedly arranged on the side walls of the working frame. A driving mechanism is arranged between the supporting plate and the clamping frame, and a pressing mechanism is arranged on