Feeding rod for shaft-shaped component and feeding method

A feeding method for a shaft-shaped component having a flange with a circular shape and a shaft portion that are integrated with each other, the feeding method comprising:

• holding the shaft-shaped component at a tip portion of a feeding rod;
• and
• feeding the shaft-shaped component, so that the shaft portion of the shaft-shaped component is inserted into a receiving hole as a feeding destination, wherein
• an advance and retreat axis of the feeding rod is disposed in an inclined state with respect to a central axis of the receiving hole disposed in a substantially vertical direction,
• a central axis of the shaft portion is disposed in an inclined state with respect to the central axis of the receiving hole due to inclined disposition of the feeding rod,
• a surface of the flange is held by the feeding rod in close contact with a tip surface of the feeding rod by an attraction force of an advancing and retreating permanent magnet or electromagnet disposed in the feeding rod, an outer peripheral portion of the flange having an arc shape in a longitudinal section of the flange along the central axis of the shaft portion,
• the tip surface includes a positioning protrusion that receives the outer peripheral portion of the flange and sets a relative position between the feeding rod and the shaft-shaped component, the positioning protrusion being provided at a lowest position of the tip surface of the feeding rod due to inclination of the feeding rod, and the positioning protrusion having a receiving surface formed with a recessed groove to which the outer peripheral portion of the flange is fitted,
• an advance length of the feeding rod is set so that a most advanced stop position of the feeding rod is a position where a tip portion of the shaft portion has entered the receiving hole,
• the attraction force of the advancing and retreating permanent magnet or electromagnet is configured to be eliminated at the most advanced stop position, and
• when the attraction force is eliminated, the shaft-shaped component performs an initial arc movement with a contact position between the outer peripheral portion of the flange and the recessed groove of the receiving surface as a constant movement fulcrum, and subsequently a falling arc movement so that the shaft portion of the shaft-shaped component is inserted into the receiving hole.