New production process of wiring harness for engineering vehicles

Domestic and foreign market demand for construction vehicles gradually warmed up, wiring harness orders also come in droves, but the traditional production model can meet the market demand, through the implementation of new technologies, wiring harness manufacturing enterprises to enhance production capacity, quality and reliability, in the fierce competition in the wiring harness sales market to stand in a small place of defeat. Now the author will be on the harness manufacturing process of the new process by analyzing: 1. down the traditional line is generally used semi-automatic down the line machine, if the more rudimentary, manual down the line of the situation also exists, which not only reduces the speed of production, but also increase the operator's labor intensity. Nowadays, the operator can use an automatic crimping machine to realize the wire according to the next line of agriculture, the wire number, wire color, wire diameter, length of the cut wire, the length of the end of the line brake, end of the line processing, whether to wear sets of waterproof plugs, the location and length of the middle brake and other information entered into the computer, and the mountain of an automatic crimping machine to output semi-finished products. According to the wire diameter, the operator of the inkjet printer to enter the corresponding line number character height parameters, line number spacing parameters for the inkjet CuiShui color in addition to the general selection of black line black, self-color inkjet coding is mainly used for individual host plant on the special requirements of the black ground In addition, in order to distinguish between confusing line number, for some groups of line numbers such as 18 and 81, generally need to be added to each line number '-' to distinguish between, such as 18 and 81, generally need to add '-' to distinguish between, for example, the line number of 18 and 81, the line number. " to be distinguished, such as 18- and 81-. After adjusting the coding parameters, the operator in accordance with the next line of agricultural computer entry line number, wire color, wire diameter, cut wire length, end of the line brake length, end of the line processing, whether or not to wear sets of waterproof plugs, in the brake position and length of the information such as production: (1) for the need to crimp the wire terminal, the operator in accordance with the next line of agricultural replacement of the corresponding wire and the end of the f-mold specifications, adjusting the pressure so that the terminal and the wire between the pull to reach the specified range, adjust the speed of supply of waterproof plugs, adjust the speed of supply of waterproof plugs, adjust the speed of supply of waterproof plugs to reach the specified range. Adjust the supply speed of the waterproof plug, at least 3 times the tension test, and record the test process, such as small qualified, then continue to adjust the pressure; such as meet the crimping tension standards, then you can batch crimp down the line. (2) For the small need for terminal crimping wire, the operator can be in accordance with the next line of agricultural, install the appropriate wire tray, adjust the total length of the production required to be down the line, the length of the two ends of the brakes skin, brakes skin knife value and the value of the rotary, set up the daily standard production volume and the number of bundles, to confirm that the first piece of qualified products, mass production. (3) in the brake has been a headache for wire harness manufacturing enterprises, manual in the brake is slow and easy to cause injuries now operators can operate an automatic wire crimping machine to achieve in the brake function, wire diameter from 0.5mm ² - 6mm ² can be, greatly reducing the operator's labor intensity, saving time to increase efficiency over 6mm ² of the wire use of low-frequency and the automatic in the brake effect of the poor, and is now still using the manual in the brake. 2. 2. parallel welding traditional parallel welding for manual terminal cold pressure, wire diameter is more people use tin soldering, time-consuming and pollution in order to overcome the traditional difficulties, operators use ultrasonic welding machine for welding, and then heat shrinkable tube heat shrinkable weld joints ultrasonic welding machine is mainly the use of mechanical vibration into the energy will be fused to the mutual fusion of copper dress to achieve the welding of the day. In order to improve efficiency, the operator can use the pipe cutting machine in advance to cut into disks of heat shrinkable tube in the welding work is completed, the operator directly at the workstation to select the appropriate type of heat shrinkable tube sleeve and point, and then blow molding the heat shrinkable tube with a hot air gun, so that the welded joints of waterproof and dustproof It is worth mentioning is that in the trial run of the new process in the course of the new process, we have also tried a plastic machine to protect the welded joints, welded points will be made into squares or ellipsoids to install a sealed welded joints . 3. Laser engraving laser engraving object is mainly connectors, is to mark the harness in the four wire end code, so that the harness in the car and maintenance is easy to identify the traditional process of identification of connectors only for the operator to use an oil-based pen to write, the font is small uniform and easy to identify the wrong, the logo naturally fall off over time is more difficult to identify when the harness in the event of a problem to increase the difficulty of the maintenance staff work. In order to solve such problems, operators use laser marking machine on the connector engraving in order to solidify the connector engraving position, operators use the connector fixed module on the connector marking now, the wiring harness in the connector code standardization, the customer is very satisfied with this. 4. sub-fitting sub-fitting applied to batch production of wiring harnesses, this process at first glance small eye-catching, but for the batch production and prop, its role can be small traditional production when The harness production is a small presence of the concept of sub-assembly, the operator is only the wire against the drawings one by one line to the nail plate, after the end of the line wrapping tape, cut all the wires 4 harnesses are required to waste as little as a few meters, more than dozens of meters of the wire when the concept of sub-assembly was put forward, the wiring harness is as much as possible disassembled, from the next line of the process out of the crimped end of the r of the wire can be classified according to the technical documents inserted into the plug-in connector, and then as a Integral flow into the wiring process (through the process flow piece of product identification) mountain in mass production, can make the operator to form habitual action, the end of the r inserted into the wrong hole position of the possibility of reducing to a small amount, for the latter and the process of quality assurance. 5. wiring traditional wiring operators have to nail the board in accordance with the drawings, wiring wire easy to loose easy to dislocate nowadays, wiring harness enterprises to transform the drawings into a 1:1 wiring diagrams, i.e., the wiring harness physical diagrams made according to the actual standards they Size of the harness produced by the physical map, and then 1.1 wiring diagrams nailed to the wiring board for use wiring board general selection of 1.8 m * 0.9 m, 2.4 m * 0.9 m and 3.6 m * 0.9 m three specifications of the board, the more people wiring harness can be any of the three specifications or stacked for the combination of four branch points to fix the wire forks, the four wire ends using the wire forks and plastic wire clips to fix the wires, and the small is traditional. The advantages of the new process of winding nail fixing are accurate size, saving wires, reducing the work intensity of the operator, and improving production efficiency. Wiring, the operator first need to check the wiring board of the fork installation is firm, angle is correct; wiring order generally to the ground line priority (and line points more), and then the arrangement of sub-assembled harness and other wires, wiring must ensure that the wiring harness neat and straight wiring is completed, the mountain wiring staff to use black insulating tape for the initial flower wrapped for fixed, require beautiful wrapping, secure, no bulging phenomenon _ followed by the inflow of bandaging 6. wrapping the traditional process of wrapping, small with the effect of the operator wrapping are small, the inspector is also small to determine whether qualified, can only assess the experience to determine the products sent to the inspection often 'often ICI small with the same aperture bellows wrapping the same branch leads to the thickness of the small uniform, the product quality has been affected. Nowadays, the operator refers to the process documents and drawings labeled with the bellows type to operate the operator first to check the laid harness without error, and then according to the drawing requirements to select and intercept the appropriate size of the bellows, and then from the connector end of the main ten direction for the bandage, Z and then with insulating tape tightly wrapped open bellows, to ensure the appearance of the smooth branch point of the processing also requires the use of insulating tape tightly wrapped without wire exposure phenomenon. The processing of the connector end requires that the length of the bare wire required by the drawings be left, and ensure that the bare wire is neat.

7. secondary crimping a crimping refers to the operator to use semi-automatic crimping machine on the remaining uncrimped terminals for additional crimping a crimping on the operator to identify the end of the r ability to higher requirements, 4 days of crimping need to do the first piece of tensile strength test, before the end of the work day need to be semi-automatic crimping machine to clean up. Semi-automatic crimping machine according to the small with the end r mold to distinguish, small with the mold is based on the small with the terminal by crimping machine manufacturers to open the mold production in the actual operation, the operator according to the technical documents guide and production experience to select the appropriate crimping machine for production. In the terminal crimping is completed, the operator to check the end r crimped appearance, such as small qualified need to be repaired. 8. plug-in plug-in process of external quality feedback rate has been very high, the problem is mainly concentrated in the three parties: (1) the use of the wrong type of connector; (2) the terminal insertion order is wrong; (3) the terminal is not inserted solidly; (4) the blind plugs or fixing piece of ancillary materials such as leakage In order to solve the problem, the wire harness Enterprises have developed a work instruction book on the operator's four production steps to refine the guidance to the plug-in process personnel to implement the assessment system, strict reference to the technical documents operation, mandatory to strengthen the conscientiousness of the personnel in order to strengthen the operator's recognition of the connector, we put forward the concept of mirror image map of the product drawings, i.e., outgoing (connector combination and) or incoming terminals (terminals inserted into the direction of the connector) definition of the drawings of the Deen A connector are drawn into a one-dimensional connector flat and map, so that everyone reduces the possibility of insertion order error. 9. Inspection of the traditional test is generally used with the Universal Nongjian both ends of the wire to check the through and through, in addition to the small harness calibrator is also often 'often used small over the production of wiring harnesses for the batch, the first two methods of inspection speed and accuracy of the people are small such as the air-bomb type calibrator, the actual measurements Proved that the air-bomb calibrator for the rapidity and accuracy of the test are unquestionable for the branch more and less suitable for air-bomb calibrator instrument agricultural platform harness, before the use of small calibrators have also been used by the special instrument agricultural platform calibrator instead of 10. 10. 10. Summary of the above is the author's simple analysis of the wiring harness of the engineering vehicle production process using the content of the new process wiring harness of the new process, although much more than the traditional process is advanced, but there is still room for progress! And the broad prospects of the engineering vehicle market, Deen individual harness manufacturing enterprises need to enhance their own process capabilities to achieve more human value, to meet market demand.

2, on the federal electronic products network platform related to the introduction and sales of products brief: federal electronic products network - a professional agent / production / sales of all kinds of [connectors | wiring harness | wire and cable products]; if you have a related [connectors | wiring harness | wire and cable products] purchasing / sourcing needs or would like to buy / to understand which connectors | wiring harness | wire and cable products we can provide solutions, please contact our business staff below; If you have related [connectors | harness | wire and cable products] sales / resources and promotion needs, please click on the ¡¡ Business Cooperation ← ¡" and specialists to discuss!