Quick pairing tool for framework front and back seat bodies

The invention belongs to the technical field of railway engineering truck manufacturing and provides a quick pairing tool for framework front and back bodies. The quick pairing tool for the framework front and back seat bodies comprises a main positioning rack (6), a front seat body height rack (4) and a back seat body height rack (5), wherein the front seat body height rack (4) is formed by two front seat body side plates (4-1) arranged on the left and right sides, and a front seat body connection plate connected between the two front seat body side plates; the back seat body height rack (5) is formed by two back seat body side plates (5-1) arranged on the left and right sides and a back seat body connection plate connected between the two back seat body side plates; the main positioning rack (6) is equipped with two flat plates (6-6) arranged on the left and right sides; and a center scale ruler (6-1) is arranged in the center of the one side of the main positioning support rack (6). Problems of incapability of measurement and difficulty in spatial size positioning can be solved; and pairing quality can be improved.