Increasing and decreasing composite intelligent repairing method for metal parts of medical apparatus and instruments

The invention discloses an increasing and decreasing composite intelligent repairing method for metal parts of medical instruments, which comprises the following specific steps: S1, establishing a sample library: extracting metal part samples of all specifications, and establishing the sample library; s2, information backup: backing up all information in the sample library in real time; s3, scanning image construction: scanning the spare and accessory parts, and constructing a three-dimensional profile diagram of the spare and accessory parts; s4, image analysis: analyzing the scanned image, screening out a sample corresponding to the scanned image in a sample library, and positioning defects of the scanned image; s5, repairing and classifying, wherein a defect repairing method is analyzed, and the spare and accessory parts are classified according to different repairing methods of increasing or decreasing; s6, selecting a welding head; s7, spot welding repair is conducted; s8, polishing is conducted; s9, cut