Positioning and locking device for long hole punching wheel tool

The utility model discloses a long hole punching wheel tool positioning and locking device which is characterized in that the device comprises a punching wheel, the punching wheel is composed of a first half wheel and a second half wheel, the first half wheel and the second half wheel are connected into an integrated structure through a connecting bolt, the device further comprises a rotating shaft, and the rotating shaft is connected with the first half wheel and the second half wheel. The rotating shaft is connected with the punching wheel through a key, a positioning hole is formed in the inner wall of the first half wheel, a positioning pin is connected into the positioning hole, the key is composed of an upper half key and a lower half key, and the bottom end face of the upper half key and the top end face of the lower half key are inclined faces matched with each other. The positioning pin is connected in an upper positioning hole and a lower positioning hole which are formed in the upper half key and t