Compliance motor structure and manufacturing method thereof

A method for manufacturing a compliance motor, comprising the following steps:

• providing a first motor having a first rotor;
• providing a second motor having a second rotor;
• providing a first gear set having a first inner input shaft, a first outer input shaft and a first output shaft coupled to each other;
• connecting the first inner input shaft to the first rotor, and connecting the first outer input shaft to the second rotor, whereby a power generated by the first motor and the second motor, coupled to the first gear set, is outputted via the first output shaft;
• providing a second gear set having a second inner input shaft, a second outer input shaft and a second output shaft coupled to each other;
• and
• connecting the first output shaft to the second inner input shaft, and fixing the second outer input shaft, whereby a power generated by the first motor and the second motor coupled to the first gear set and the second gear set being transmitted through the first output shaft and the second inner input shaft and then being outputted via the second output shaft.