Quick-change positioning seat for multi-vehicle tool clamp

The utility model relates to the technical field of automobile manufacturing, in particular to a multi-vehicle-type tool clamp quick-change positioning seat which comprises a horizontally-arranged base plate, and the two ends of the base plate are respectively and fixedly connected with a support so that a U shape can be formed between the two supports and the base plate. A plurality of guide limiting wheels are rotationally connected to the sides, away from each other, of the two supports, supporting plates are further arranged on the upper sides of the two supports correspondingly, the sides, away from each other, of the two supporting plates abut against the sides, close to each other, of the guide limiting wheels on the two sides correspondingly, and supporting frames are arranged at the two ends of the base plate correspondingly; the supporting frame is provided with a positioning pin which ascends and descends in the vertical direction, the supporting plate is provided with a driving mechanism, the uppe