Worm pressing method and pressing equipment used for worm pressing method

The invention discloses a worm assembling device for installing a worm on the motor shaft of a motor, comprising a lower tool assembly, a plywood assembly and an upper tool assembly, wherein the lower tool assembly comprises a tool holder for fixing a motor, and a first pressure sensor for monitoring the pressure of the bottom of a motor shell; the plywood assembly comprises a clamping jaw for tightly clamping the motor shaft; the upper tool assembly comprises a guide spring pin, a guide pillar and a first position sensor, wherein the guide spring pin is suitable to receive the worm; the guide pillar is connected above the guide spring pin; and the first position sensor is used for monitoring lower pressing position. The invention also discloses a worm assembling method comprising the following steps: installing the motor onto the tool holder of the lower tool assembly; tightly clamping the motor shaft of the motor by the clamping jaw; installing the worm onto the upper tool assembly;downwards pushing the wor