Before proceeding with the wiring harness manufacturing process, it is necessary to understand the relevant equipment, materials and processes. This is critical to achieving a high quality wire harness manufacturing process. The following describes a systematic approach to understanding the equipment, materials, and processes in the wiring harness manufacturing process.

1. Equipment

1. Milling machine: used to cut, drill and punch holes on cable sockets, terminals or wires. This device is often used to process metal or plastic products. The milling machine consists of a CNC machine or a hand-held machine.

2. Wire stripping machine: used to automatically strip the insulation layer of the wire for the next step of the process. There are two types, manual and automatic.

3. Automatic glue spraying machine: It is used to spray glue on the wire harness in order to fix all parts of the wire harness tightly together. There are two common systems - cell type and multi-nozzle type.

4. Drilling machine: used to drill wire sockets and wire holes directly into the circuit board. It is mainly used in the manufacture of complex circuit boards.

5. Cable cutting machine: used to cut the cable or cable to the desired length for the next step of the process. There are two types: automatic and manual.

6. Welding machine: used to fix the wires and plugs in the wiring harness together through thermal welding.

7. Debugging equipment: used to test the function and integrity of the wiring harness. It checks that the wires are connected correctly by feeding a current and a signal into the harness.

Ii. Materials

1. Cable: one of the very important materials in wire harness manufacturing. The choice of cable depends on the use of the harness, aluminum, copper, steel, plastic and other different materials. When selecting a cable, it is necessary to consider its size and outside diameter and other indicators.

2. Insulation material: The insulation material is the insulation layer between the wire inside the cable and the wiring harness. Commonly used insulation materials are polyvinyl chloride, polyurethane and silicone rubber.

3. Connector: used to connect different wiring harness components. The connector consists of a conductor and a plug. Commonly used materials are steel, copper and plastic.

4. Environmental protection materials: Environmental protection materials are mainly to protect the ecological environment, as a part of the wiring harness manufacturing process can not be ignored. Common environmental protection materials are green cables, green insulation materials and so on.

Iii. Process

1. Wire harness design: Detailed design is required before wire harness manufacturing. It mainly includes the length of the wire harness, the number of the wire, the insulation grade and the determination of the socket position.

2. Harness production: Harness production includes cutting cable insulation, adding wire labels, assembling connectors and spraying glue.

3. Wire cutting and connection: wire cutting and connection is a key link in wire harness manufacturing. The operator needs to cut the wire according to the design drawings, and plug the wire connector together in order to complete the connection of the circuit.

4. Detection and correction: After the wiring harness is manufactured, quality testing is required. If problems are found, they need to be corrected. The common detection methods are power-on test and full beam test.

In short, in terms of understanding equipment, materials and processes, it is necessary to carefully study the process of wire harness manufacturing. Only by deeply understanding these contents can they be better applied to the actual wiring harness manufacturing process to ensure the high quality of the wiring harness.