Railway vehicle bogie support seat pairing clamp

The utility model relates to a combination fixture of railway vehicle bogie support block, which comprises a door-shaped framework composed of a horizontal beam and two vertical columns. Wherein two retaining ring positioning blocks are equipped in left and right symmetric positions in lower part of the horizontal beam and a locking shaft which is used for the installation of the support block is matched with the lower part of the horizontal beam. The neck of the locking shaft can be matched with the center holes of the retaining ring and support block. Fixture body of each retaining ring positioning block is provided with positioning plane M corresponding with the end face of the retaining ring and positioning hole N which is matched with the locking shaft. A locking device which can firmly clamp two ends of small guiding platform locating in inner lateral of side guiding frame is equipped in inner lateral of the lower end of the two columns of said framework. The fixture is reasonable in design model, simple in structure and easy to operate, which can guarantee improvement quality of bogie of the railway vehicle speed acceleration (120KM/H), guarantee accurate positioning of the assembly welding of the support block, improve operating environment, and reduce labor intensity of workers and improve working efficiency. The utility model is suitable for welding and positioning using when the railway vehicle transfers to K2 type bogie.