Single PIN-free operation method for PCB (printed circuit board) forming routing

The invention discloses a single PIN-free operation method for a PCB (Printed Circuit Board) molded routing board, which comprises the following steps of: adjusting a stress surface and a right compensation mode of the routing board of a routing machine, enabling the acting force of a routing cutter to be on a process edge of a board edge, enabling the appearance of the single routing board not to be influenced by the cutting external force of the routing cutter, enabling the interior of the single routing board not to be positioned by pin holes, and only fixing the routing board by 14-16 3.0 MM pin holes on the board edge; according to the design of the gong belt, the gong cutter is lifted when the gong plate still has the length of 4MM, and the pressing angle upper fixing device firstly presses the cutter collecting position of the single appearance gong plate to be immobile when the cutter is lowered again, so that the single appearance gong plate is prevented from deviating and generating salient points w