Positioning method for precise welding of superfine wire harness

The invention relates to the field of superfine wire harness multi-main-wire precision welding, and discloses a superfine wire harness precision welding positioning method, which comprises a workbench, a superfine wire harness, a PCB (Printed Circuit Board), a positioning bolt and a main wire, the workbench is provided with a sliding assembly, a jig assembly is arranged above the sliding assembly, the jig assembly is used for clamping the head end of the superfine wire harness, and the main wire is arranged above the jig assembly. A third jig, a fifth jig and a seventh jig are arranged on the workbench, a fourth jig is fixedly installed at the bottom of the third jig, the fifth jig and the fourth jig are used for positioning the tail end of the superfine wire harness and the head end of the main wire, the positioning bolt is used for fixing the tail end of the main wire, and the sliding assembly drives the fifth jig and the seventh jig to move towards the third jig. The head end and the tail end of the superf