Cable Assembly
LHD Mission
We are very keen on the needs of our customers.
LHD Purpose
To provide clients with a truly one-stop shopping experience.
LHD Specialties
To achieve excellent PCBA function.
Each process has inputs and outputs, i.e. relevant documents need to be compiled to guide the production of the corresponding process, such as the wire down table to guide the wire down crimping process.
Note: the wire down table that is, the wire down, crimping details, including a variety of process parameters and requirements, such as process forms. In the wire harness production process, the down wire table ultimately through the down wire crimping process card, used to guide the operation of the down wire crimping process, to guide the workshop production process.
Each process also needs to be inspected, and only after the inspection is passed can the batch be carried out, and the process needs to be monitored at any time. For example, in the next line process, you need to make the first piece, the first piece of wire length, stripping head and other parameters through the inspection, before the batch off the line.
Downstream (material) process
Definition
The so-called underline is according to the design drawings, the different specifications of the wire conductor according to the process documents for cutting, stripping, bundling process.
Process
prepare materials → adjust equipment → first piece of inspection (measuring wire length, stripping head) → mass production (in the final inspection, 100% self-inspection) → finishing wire → to be turned over.
Inspection
The wire length, full stripping and half stripping length, opening length and other process parameters need to be measured in the downstream process.
Crimping Process
Definition: The so-called crimping is the process of acting the wire and terminal together.
Process: ready materials → adjust the equipment → do the first piece → the first piece of inspection (micrometer to measure the height of the crimp, crimp width) → mass production (in the end of the inspection 100% self-check crimp quality) → to be turnover
Inspection: The crimping process needs to measure whether there is R angle, whether the visible range of core wire and insulation skin is within the tolerance range, whether there is any damage to the pressing part of the core wire and insulation skin, and whether there is any damage to the pressing part of the core wire and insulation skin, as well as the crimping distortion degree and other process parameters.
Cable Assembly
In PCBA processing, not only is there only component placement, but there are also often a lot of circuit boards that need to be soldered with a large number of wiring harnesses. Generally this harness is used in the DIP insertion process, which is different from other parts of SMT processing, as it needs to be manually inserted into the through-hole and then coated with solder paste through wave soldering.
In the production of PCBA, the wire harness plays an important role in connecting various components and parts. A wire harness is an assembly of multiple insulated wires or optical fibers used to transmit electrical signals, power or data. In PCBA production, wire harnesses assume the following roles:
Pre-assembly (Pre-Assembly) Process
Definition
The so-called pre-assembly is the process of assembling the semi-finished products with sheaths, tubes, rubber parts and other components into new semi-finished products after wire or crimping.
Procedure
Prepare all the materials → one insertion, two listening, three pull back → installation of self-locking
Inspection
According to a plug two listen to three back to pull the process to complete the self-inspection.
Assembly (Total Assembly) Process
The so-called assembly is the process of combining the semi-finished products after wiring or crimping, semi-finished products after pre-assembly and other materials into a finished wire harness. Tape or zip ties are bundled into bundles, which are wire harnesses.
