The tape plays a role in bundling, abrasion resistance, insulation, flame retardant, noise reduction, marking, etc. in the wire harness of the automobile, and generally accounts for about 30% in the wrapping material. The tape for the wire harness is generally divided into PVC tape, flannel tape and cloth tape. 3 types. PVC tape has good wear resistance and flame retardancy, and its temperature resistance is around 80 °C. The noise reduction is not good and the price is cheaper.
The design and manufacture of the automatic terminal crimping machine has changed the status quo of the manual crimping of the automotive wire harness terminal. At the same time, the crimping process and quality of the wire harness terminal are completely guaranteed by the equipment of the automatic terminal crimping machine, which greatly eliminates the crimping of the automobile wire harness caused by human factors. The terminal quality is unstable. Moreover, the use of the automatic terminal crimping machine greatly improves the work efficiency of the worker, reduces the labor intensity, and achieves good economic and social effects.
The user defines the wire harness in the database. There is a data table in the database to store the wire definition data of the wire harness. The data table includes the wire bundle name, the wire harness code, the wire, the 棂 node, and the leaf node. There are 5 data fields in the table. A record defines a wire.
The test flow of the system is as follows: the wiring harness to be tested is connected to the interface slot, the single-chip microcomputer is started, and the single-chip microcomputer enters waiting for the PC to transmit the test command state--the PC sends the start test command to start the single-chip test main program test main program to test each wire one by one and Send each wire test result to the PC analysis program - PC analysis program compares the data sent by the MCU with the definition in the wire harness database - PC analysis program displays or prints the test report - End of test or next Harness testing.
The shearing die of the crimping machine must meet the requirements of mold working conditions, processing technology and economical use. It has wear resistance, toughness, fatigue resistance and annealability. Therefore, the shearing die of the wire harness crimping machine is formed by quenching and high temperature annealing of alloy steel.
The function of the PVC pipe is similar to that of the bellows. PVC pipe has good flexibility and bending resistance, and PV (the pipe is generally closed, so the PVC pipe is mainly used for the branch of the wire harness to make the wire smoothly transition. The heat resistance temperature of the PVC pipe is not high, generally 80 Below °C.
Therefore, how to improve the overall performance design of automotive wiring harness has become the focus of attention, and automotive wire harness manufacturers no longer simply engage in wire harness design and manufacturing, and the pre-development of automobile host manufacturers has become an inevitable trend.
The copper used for the connectors is mainly brass and bronze (the hardness of brass is slightly lower than that of bronze), and brass accounts for a large proportion. In addition, different coatings can be selected according to different needs.
The development of in-vehicle positioning equipment will make CPS technology widely used in urban road traffic. This is of great significance for improving the road traffic conditions in my big city and effectively using relatively tight road resources. The use of smart CPS terminals in the car will also be a matter of the near future.