Automobile Vehicle Bridge Stiffener Ring, Rear Cover Welding Apparatus And Control

As some automatic welding equipment of car rear axles exist a lot of problems such as low level of automation, low level of accuracy, low efficiency and so on. The article developed one kind of PLC automatic control technology to in automation welding equipment to weld stiffener rings of rear cover of car, using PLC control to realize welding process automation.Base on the characteristic and production lot of the rear axle, carbon-dioxide arc welding is widely used in the reality engineering of the rear axle welding at present time. Carbon-dioxide arc welding is suited well for all-position weld, the welded samples have small deformation and high efficiency, which made it to be organized in production line. In addition, not only the resource of carbon dioxide is very abundant but also the price is low. So we adopt the carbon-dioxide arc welding in the welding equipment. The conventional control system of the production line is easily interfered by the environment, and difficulty to be maintained stably. Besides, it also has a low adaptability to match the vary of the process. These factors limit the use of CO₂ shielded arc welding. Therefore how to improve the stability and adaptability for CO₂ shielded welding technique is very important. PLC control technology is used to control the bridge girth welding production process to improve the economic efficiency and overcome the defects of traditional logic control, such as susceptible to environmental interference, short of life expectancy, high failure rate, difficult to maintenance, and so on. When the welding processes change, the only change control procedures can meet better performance. Through the design of the hardware and software protection link greatly enhancing the bridge girth CO₂ gas welding production line job stability, reliability and adaptability, economy and the resistance of all kinds of interference, which will have a high prospect of the market.System Operation showed the welding source has high accuracy, security and good response speed, a high degree of automation features, which achieved lower labor intensity, improve weld quality and production efficiency, lowed scrap rates, convenient operation, easy maintenance purposes, in particular to improve the working conditions of workers and improve production efficiency has obvious practical significance.