Disc positioning jig

Abstract

The application relates to the technical field of positioning fixtures, in particular to a disc positioning clamp, which comprises a positioning disc and a disc workpiece, the disc workpiece is provided with assembly holes, the assembly holes are uniformly distributed around the axis of the disc workpiece, the disc surface of the positioning disc is provided with expansion sleeves inserted into the assembly holes, the end face of the expansion sleeve away from the positioning disc is provided with an axial deformation groove in the axial direction, the axial deformation groove is communicated with the inner hole of the expansion sleeve, and the positioning disc is provided with extrusion pins inserted into the inner hole of the expansion sleeve to force the expansion sleeve to expand and abut against the inner wall of the assembly hole. The disc workpiece is placed on the positioning disc, the expansion sleeve is inserted into the assembly hole, the extrusion pin is inserted into the expansion sleeve, the expansion sleeve is forced to expand and abut against the inner wall of the assembly hole, effective fixing of the disc workpiece and the positioning disc is realized in the form of damping, and finally the positioning disc is installed on a machining machine tool, so that the outer peripheral surface and the end surface of the disc workpiece can be machined.

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