The invention discloses an automatic PIN feeding, discharging and
punching mechanism for a
grinding machine. The automatic PIN feeding, discharging and
punching mechanism comprises a PIN storage
assembly used for storing and providing PINs, wherein one side of the PIN storage
assembly is connected with a PIN feeding
assembly matched with the PIN storage assembly, the other side of the PIN storageassembly is connected with a driving assembly, and a rotating assembly is installed on the back face of the driving assembly; and the driving assembly converts the horizontally-arranged PINs into vertically-arranged PINs, and enables the PINs to correspond to inner holes of
welding pins needing to be machined. According to the automatic PIN feeding, discharging and
punching mechanism for the
grinding machine, the PIN storage assembly is arranged, so that the PINs are stored in batches, rapid and automatic feeding is facilitated, and
automation is easy to achieve; furthermore, the pushing process of the PINs is continuously completed through an ejector rod and multiple guide grooves, and automatic feeding and discharging of the PINs are completed in cooperation with the driving assembly, sothat the
machining space is saved; in addition, the PINs can be quickly and accurately positioned through a guide plate and an air blowing
pipe during feeding; and finally, feeding and discharging routes of the PINs are fixed and controllable through a limiting block, a limiting device and the guide grooves, and the production process is stable and efficient.