Assembling method and assembling clamp for multi-groove-hole inner rubber ring

The invention provides an assembling method and an assembling clamp for a rubber ring in a multi-groove hole, and belongs to the technical field of machining, the assembling method comprises the steps that (1) the rubber ring is sleeved with a shaft hole in a shaft, and a part to be assembled is formed; (2) the part to be assembled is placed in the transition hole in the transition sleeve, extrusion force is applied to the rubber ring through the hole wall of the transition hole, the rubber ring is completely extruded into the shaft hole, the rubber ring is completely attached to the hole wall of the shaft hole, and a transition treatment part is formed; (3) freezing the transition treatment piece, so that the rubber ring is shaped in the shaft hole; (4) after freezing treatment is completed, the to-be-assembled part is taken out of the transition hole and installed in an assembly hole in the shaft sleeve base, and assembly of the to-be-assembled part and the shaft sleeve base is completed; the diameter of th