What are the processing procedures for wire harnesses? What are the process requirements?

Wire harness processing is a precision work, in order to be able to ensure the quality of the wire harness products, wire harness processing process generally need to be through the standardization and standardization. What is the processing flow of wire harness? What are the process requirements? A: send line to send line equipment: will need to be processed as well as wire products into the transit feeder frame. Required equipment: wire feeder, wire feeder. Process design requirements: pay attention to do not scratch scratch the surface of the wire. Avoid multiple wire processing at the same time, the wire is not the same degree of tension. Second: Cutting cutting line: Cut the required length of wire with a cutting machine. Required information equipment: computerized wire cutting machine, multifunctional wire cutting machine, cut wire stripping machine. Process requirements: no cutting line surface; no cutting copper wire; no stripping length and short error of not more than ± 1mm. iii: Stripping wire for stripping: Stripping the wire at the joints and the corresponding different lengths of the insulation outside being according to the SOP requirements. Required equipment: wire stripping machine, vertical wire stripping machine, pneumatic wire stripping machine. Requirements for process design: no surface crushing; stripping length error analysis is not allowed to exceed ±1mm. iv: Twisted wire twisting: used for finishing connector conductors, twisted. Required information equipment: cut wire stripping and twisting machine, cut wire twisting machine. Process requirements: shall not scratch the surface of the conductor; must tighten the copper wire, there shall be no loose wire. V: crimp terminals riveted terminals: the joints between the conductor and plug connection terminals for activities riveted. Required equipment: terminals, single and double terminals, automatic terminals, copper tape machine, mute terminals. Process design requirements: the terminal is not deformed and must be carried out in line with the tension, riveting technology height, width requirements. Sixth: dip tin dip tin: tin dip treatment at the joints, easy to insert the circuit board. Required information equipment: automatic tinning machine, single and double head tinning machine, cutting line tinning machine. Process requirements: uniform tinning, no loose wire, dip tin depth in line with the requirements. Seven: assembly, assembly production of plastic plug or shell. Required equipment: electric screwdriver. Process design requirements: screws are not allowed to expose the surface of the plastic shell; must achieve product quality requirements of the torque. Eight: conduction test, with the instrument for wire harness conduction test. Required information equipment: conduction tester. Process requirements: no short circuit, disconnection, wiring errors, poor contact, poor insulation and other phenomena. Nine: Packaging, the use of plastic bags to encapsulate the finished wire harness into a cardboard box. Required equipment: sealing machine and packaging machine. Process requirements: sealing should be flat; packing tape should be tightly wrapped carton, not allowed to fall off.

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