Train wheel grabbing device

The utility model discloses a train wheel gripping device which comprises a rotating wrist device, a cross beam device, a clamping device and a clamping finger device, the rotating wrist device comprises a first servo motor, a Z-axis connecting plate is arranged below the first servo motor, a sleeve is arranged at the bottom of the Z-axis connecting plate, a connecting plate is arranged at the bottom of the sleeve, and a clamping finger is arranged on the connecting plate. A first servo speed reducer is arranged at the bottom of the first servo motor, the bottom of the first servo speed reducer is inserted into the sleeve, a first RV input shaft is arranged at the bottom of the first servo speed reducer, the two sides of the first servo speed reducer are each provided with a flange plate, and the flange plates are connected with the first RV speed reducer. The train wheel grabbing device has the beneficial effects that the grabbing problem in the train wheel machining process is solved, the train wheel grabbi