Marble type clamping jig

The utility model relates to a marble type clamping jig, which comprises a jig core for positioning a framework and a connecting seat connected with a main shaft of a winding machine, the jig core comprises a jig main body for sleeving the framework and a connecting column formed on one side of the jig main body and extending outwards, the connecting column is connected with the connecting seat, and the connecting seat is connected with the framework. The peripheral side of the jig body protrudes outwards to form a flange limiting axial movement of the framework, and a ball plunger abutting against the framework is arranged in the jig body. According to the jig core, the framework is installed and positioned in an inserting mode, the ball plungers with the telescopic marbles are arranged on the jig core, the framework is fixed in the mode that the marbles abut against the framework, the structure is simple, installation is convenient and fast, extra tools do not need to be adopted, and production efficiency i