Spraying line part automatic feeding system

The invention relates to a spraying line part automatic feeding system. The spraying line part automatic feeding system comprises a hanging tool conveying line, a part conveying line, a conveying lineprior to spraying, a hanging tool transfer robot, a part transfer robot and a loading transfer robot. The hanging tool conveying line, the part conveying line and the conveying line prior to sprayingare used for conveying a hanging tool, a to-be-sprayed part and a hanging tool suspending the to-be-sprayed part correspondingly. The hanging tool is transferred by the hanging tool transfer robot. The to-be-sprayed part is transferred by the part transfer robot and can be hung on the hanging tool. Finally, the hanging tool on which the to-be-sprayed part is hung is transferred to the conveying line prior to spraying by the loading transfer robot to complete automatic hanging of the to-be-sprayed part. According to the spraying line part automatic feeding system, the conveying lines cooperatewith each other to convey