Quick die changing clamp

The utility model discloses a quick die changing clamp which can be quickly changed without detaching fasteners such as screws and the like, and is time-saving and labor-saving. The quick die changing clamp comprises a clamp head arranged on a bottom plate of a production line, the middle of the clamp head is hollow, and a conical positioning pin, a thin-wall sleeve, a steel ball and a spring are arranged in the middle of the clamp head. The thin-wall sleeve is of a hollow structure and is fixed to a production line. The conical positioning pin is movably arranged in the thin-wall sleeve, and the spring is arranged at the bottom of the conical positioning pin; the top of the thin-wall sleeve is provided with a first guide hole communicated with the top of the clamp head, the upper portion of the conical positioning pin is inserted into the first guide hole, and the lower portion of the conical positioning pin is limited in the thin-wall sleeve in a conical mode. The multiple steel balls are evenly distributed