Locking mechanism and locking method

The invention discloses a locking mechanism, and relates to the technical field of cutting equipment. The locking mechanism comprises a first shaft, a spring, a second shaft, a shell and a second limiting body; the first shaft is provided with through holes in the radial direction; one end of the spring is connected with the first shaft, and the other end of the spring is provided with a first limiting body; the second shaft is rotationally connected in the first shaft, and first grooves and second grooves which cooperate with the first limiting body are formed in the second shaft in the radial direction; the outer side of the first shaft is sleeved with the shell, and third grooves are formed in the shell; and the second limiting body is movably connected in the through holes. By aiming at the technical problem that the locking efficiency of a feeding mechanism of cutting equipment is low, the locking mechanism has the technical effect that the locking efficiency can be improved. 本发明公开了一种锁止机构，涉及切削设备技术领域，包括轴一