Harmonic reducer assembly tool

The invention provides a harmonic reducer assembly tool which comprises a base, a containing groove is formed in the base and used for containing a flexible gear, a plurality of communicating holes are formed in the inner wall of the containing groove, the communicating holes are in a circumferential array and at least comprise an upper row and a lower row, a cavity is formed in the base, and the communicating holes communicate with the cavity. According to the method for adsorbing the outer wall of the flexible gear through negative pressure, the influence on the inner wall of the flexible gear can be reduced, that is, compared with a method for supporting and shaping the inner wall through a shaping device, the method for adsorbing the outer wall of the flexible gear through negative pressure has small influence on the inner wall of the flexible gear, and then the influence on the assembly precision is avoided; and the negative pressure adsorption method can be suitable for the flexible gear without the bot