Vehicle frame turnover device for vehicle chassis assembly line

The utility model discloses a vehicle frame turnover device for a vehicle chassis assembly line, and relates to the technical field of vehicle chassis assembly. The device aims to solve the problem that an existing vehicle frame turnover device of the vehicle chassis assembly line is low in operation precision. The turnover device comprises a frame mechanism, a follow mechanism, a first lifting rotary mechanism, a second lifting rotary mechanism, a clamp, a tracking and monitoring mechanism and a speed measuring mechanism. The follow mechanism comprises a follow vehicle frame which is connected with a linear guide rail sliding block, the linear guide rail sliding block is matched with a linear guide rail, the linear guide rail is connected with the frame mechanism, the follow vehicle frame is provided with a motor speed reducer and a rack, a drive gear on the motor speed reducer is meshed with the rack, and the drive gear drives the follow vehicle frame to slide along the linear guide rail. When a semi-finish