PURPOSE: To save labor in fitting objects by holding one object at a holding jig and the other object at a fixed side adjusting jig and an oscillating side adjusting jig, turning a table and actuating a pusher, thus deforming the other object in order to perform the fitting of both objects.

CONSTITUTION: An object 1 on one side is standstill on an intermittently turning table 4. On the other hand, an oscillating side jig 6 on a table 7 on the fitting side oscillates around a fulcrum 8 by the turning of the table 7 through a cam follower 9 in contact with a rail cam 10, and the object 2 on the oscillating side jig 6 is adjusted and bent by a preceding adjusting jig 12 and a fixed side adjusting jig 5, so that the protruding part on one side can be fitted without touching the object 1 in the standstill state. At this point, the cam follower 9 comes off the rail cam 10, the oscillating side jig is returned to the original position by a spring 14, and the other protruding part is pressed lightly to the other party. Further pressed to the other party strongly by a pusher 11, the other protruding part of the object 2 touches the chamfering part of the other party and is deformed to be fitted.