Fastener driving machine

A fastener driving machine, comprising:

• an energy storage unit (1);
• an impact unit (2) used to drive the energy storage unit (1) to store energy and withstand the energy released by the energy storage unit (1) to drive the fastener into a workpiece;
• a driving mechanism (3), which is connected to the impact unit (2);
• a rotating power mechanism (4), which is connected to the driving mechanism (3) to provide rotating power to the driving mechanism (3);
• its features are:
• the driving mechanism (3) comprises a stationary annular gear (31), a crank (32) connected to the rotating power mechanism (4), and at least one planetary gear (33) which is connected to the crank (32) in a spinning manner and revolves with the rotation of the crank (32) relative to the annular gear (31), and an engaging shaft (34) eccentrically connected to the planetary gear (33) to push the impact unit (2), the planetary gear (33) is placed in the annular gear (31) to mesh with the annular gear (31).