Harmonic reducer cam assembling device

The utility model belongs to the technical field of harmonic reducer assembly, and particularly relates to a harmonic reducer cam assembly device. The harmonic reducer cam assembling device comprisesa base, a guide piece, a bearing supporting piece and a pressing piece, the guide piece is fixedly arranged on the base, the guide piece is sleeved with a cam which is in contact with the base, the bearing is arranged at the end, close to the cam, of the bearing supporting piece in a sleeving mode, and the pressing piece is arranged on the bearing supporting piece in a sleeving mode. The bearing makes contact with the face, back on to the base, of the cam when the bearing supporting piece is installed on the guide piece, the pressing piece covers the bearing supporting piece and makes contactwith the face, back on to the cam, of the bearing, and when the pressing piece is pressed, the cam is installed in the bearing of the bearing supporting piece. Under the guiding effect of the guidingpiece, the assembling proce