Auxiliary assembly device

The utility model relates to an auxiliary assembling device which comprises a support, the support is provided with a first installation position, and the first installation position is used for containing a screen assembly; the positioning assembly is arranged on the bracket; the fixing assembly is movably arranged on the support, the fixing assembly is provided with a locking position close to the first mounting position and a releasing position away from the first mounting position, and the fixing assembly is connected with the positioning assembly and used for locking the screen assembly at the locking position; in the release position, the fixing assembly is separated from the positioning assembly and used for releasing the screen assembly. By means of cooperation of the fixing assembly, the positioning assembly and the support, manpower-free positioning of the screen assembly can be achieved, the labor intensity of machining personnel is greatly relieved, the assembling work efficiency can be improved,