Wire Harness Assembly Process Specifications

1. Assembly process: the wiring harness assembly process mainly includes pre-assembly process and total assembly process. Wiring harness factory from the function to be divided, there are carrying drive the executive element (actuator) power of the power line and the transmission of sensor input instruction signal line two kinds. With people's comfort, economy, safety requirements continue to improve, the types of electronic products on the car is also increasing, the automotive wiring harness is more and more complex, the failure rate of its wiring harness is also increased accordingly.2. Pre-assembled (sub-assembly): Pre-assembled is the wire or crimped semi-finished products with the sheath, tubing, rubber parts and other components assembled into a new semi-finished product process. Automotive wiring harness automotive circuit of the main body of the network, there is no wiring harness there is no automotive circuit. 3. total assembly: the total assembly is the wire or crimped semi-finished products, preassembled semi-finished products with other related materials can be assembled into a wire harness finished product process. 4. draw tray: tray drawing is one or more wires in accordance with certain directions tray winding into a diameter of 200mm or so disc process. 5. tension Not fully produced:When assembled with multiple wires, some wires are not neatly assembled in the same set of tubes, resulting in uneven tension. Calculation of plane strain and the number of half bands. 6. single force: single force to carry out the wire is in a number of related wires significantly different from the impact of the force is greater and the shortest wire. 7. one insertion of the sheath assembly, two listening and three pull-back: sheath material assembly to follow the principle of one insertion, two listening and three pull-back; the left hand holds the sheath, the right hand holds the wire; from the end of the terminal tail of the hand-held wire 10mm5mm axial insertion; Inserted after a press; can not pull back, qualified; 8. Assembly of waterproof plug terminal: waterproof plug terminal installation method is inserted from the terminal end of the sheath about 10mm5mm. 9. Tape full wrap wrapping (half-stacked wrapping): in the wrapping work at the beginning of the in-situ treatment of the wrapping of the 2 ~ 3 layers of the tape will be tilted to the appropriate development of the angle of the full wrap wrapping. Tape full wrapping wrapping need to be these tapes stacked width of 1/3 to 1/2, no special education requirements, the general business choice 19mm 20 mm Pvc black tape company for simple wrapping, wrapping in the wrapping method at the end of the point of wrapping wrapping wrapping 2 to 3 layers. 10. tape wrapping and wrapping: in the wrapping at the beginning of the wrapping, in-situ wrapping wrapping 2 to 3 layers of the tape will be tilted to the appropriate angle to do the flower wrapping wrapping, the tape wrapping flowers Wrapping interval distance for the tape width of 1/2 to 1 tape width of the package, in the end of the package and then do the in-situ wrapping 2 to 3 layers. The head of the tape is tightly attached to the tape, and the wire harness should be flat and firm after wrapping with tape flower wrapping, with no defects such as tape wrinkles, uneven spacing, and anti-glue, etc. 11. Interval wrapping with tape: When using tape for interval wrapping, it should be stopped at the original position and wrapped in 2~3 layers. Determine the selected tape and spacing distance according to the product characteristics or product requirements. The spacing distance of interval winding is generally 100 m ~-150 mm.

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