Blank feeding mechanism for bolt machining

The invention relates to the technical field of bolt machining, and discloses a blank feeding mechanism for bolt machining, which comprises a feeding mechanism and a carrying piece which is used for moving blanks to the feeding mechanism one by one and is driven by a driving mechanism to rotate, and the driving mechanism drives the carrying piece to rotate clockwise and anticlockwise. The carrying piece comprises a rotating wheel and a semi-ring which are fixedly connected, one end of the semi-ring is a wedge-shaped face, the other end of the semi-ring is a plane, and in the initial state, one blank rolls to the plane under the action of gravity and is blocked and limited by the rotating wheel. Even if a length detection mechanism is not used, when the moving length of the power output end of the feeding mechanism is fixed, the first moving distance and the follow-up multiple moving distances of each blank can still be the same in the process of conveying the multiple blanks one by one, and then the segmented