The application discloses a precise shifting and feeding structure, which comprises a feeding
pipe, a swinging long shaft and a clamping mechanism, the feeding
pipe is used for conveying workpieces; the swinging long shaft is driven to rotate by a driving mechanism, so that the swinging long shaft reciprocates within a certain angle range; the clamping mechanism comprises a clamping front plate and a clamping back plate, the clamping back plate is fixedly connected to the bottom end of the swinging long shaft, the clamping front plate is rotatably connected to the bottom end of the swinging long shaft, the clamping mechanism further comprises a spring, the spring is used for abutting against one side of the clamping front plate away from the clamping back plate, so that the clamping front plate and the clamping back plate clamp the workpieces conveyed by the feeding
pipe; through the cooperation of the swinging long shaft, the clamping front plate, the clamping back plate, a material supporting plate, a second limiting rod, a limiting block, a fixing rod and the spring, the clamping mechanism can be self-adaptively opened and closed in the process of receiving the workpieces conveyed by the feeding pipe and putting the workpieces into a material cylinder, the workpieces can be conveniently transferred into the material cylinder one by one, and the operation convenience is remarkably improved.