Assembly pressure maintaining device

The utility model provides an assembly pressure maintaining device. The assembly pressure maintaining device comprises a bearing part, a covering mechanism, a linkage assembly, an X-direction clamping assembly, a Y-direction clamping assembly and a pressure maintaining locking mechanism. The bearing part is used for bearing a first workpiece; the covering mechanism is rotatably covered on the bearing piece; the linkage assembly is slidably arranged on the bearing piece and abuts against the covering mechanism. The X-direction clamping assembly is arranged on the bearing piece in a sliding mode and connected with the linkage assembly. The Y-direction clamping assembly is arranged on the bearing piece in a sliding mode and connected to the X-direction clamping assembly. The pressure maintaining and locking mechanism comprises a feeding assembly and a pushing assembly which are arranged on the covering mechanism, the feeding assembly is used for adsorbing and positioning the second workpiece, and the pushing ass