This invention relates to the field of component
assembly technology, specifically to a method for assembling a
coolant pump and a gearbox. The
assembly method uses an auxiliary tool, which includes a shaft with a boss at one end. A first limiting structure and a second limiting structure are provided on the outer circumference of the boss and the shaft, respectively. The
assembly method is performed according to the following steps: S1, inserting the boss of the auxiliary tool into the
coolant pump, thus securing the
coolant pump to the tool; S2, holding the tool horizontally, inserting one end of the
coolant pump bolt into the gearbox mounting hole, adjusting the tool to align the bolt with the screw hole in the gearbox; S3, after the bolt and screw hole are aligned, the second limiting structure confines the tool within the mounting hole, and a tightening gun is used to tighten the bolt from the
coolant pump nut side, completing the assembly of the
coolant pump and gearbox. This invention uses an auxiliary tool to tighten the coolant pump, facilitating the tightening of the coolant pump bolts with a tightening gun, preventing the coolant pump from shaking or rotating.