High-precision transfer trolley for body-in-white production line

The utility model relates to a high-precision transfer trolley for a body-in-white production line. The high-precision transfer trolley comprises a trolley body, the rotating mechanism is positioned at one end of the vehicle body; the trolley docking mechanism is located at the other end of the trolley body and used for positioning the trolley body; the fixing mechanism is located on the vehicle body and comprises a first clamping assembly used for clamping and fixing a workpiece and a second clamping assembly used for clamping and fixing the vehicle body, when the workpiece is arranged on the vehicle body, the first clamping assembly is in a working state, and a second positioning pin on the first clamping assembly is inserted into the workpiece so as to position and fix the workpiece; when no workpiece is arranged on the vehicle body, the second clamping assembly is in a working state so as to clamp and lock the vehicle body; and the workpiece positioning mechanism is positioned between the fixing mechanism