Three dimensional flexible welding fixtures in the application of new energy bus is introduced

   Flexible modular fixture system is a kind of three dimensional flat faces of clamping system, has the D28 and D16 two series. It based on the various forms of workbench, equipped with a variety of shapes, a variety of specifications of the standard module structure, each other through localization parts, fittings and locking pin connection, welding and assembly of the workpiece on the workbench need with with compensation in the form of a variety of manual clamping apparatus clamping. According to the need, also can equipped with hydraulic, pneumatic, chain type, and other forms of clamping way. Modular fixture with efficiency, accuracy, and the characteristics of the diffusion resistance, interchangeability and repeatability.

China's economic growth has accelerated China's automobile manufacturing industry, engineering machinery industry, the development of the shipbuilding industry, according to China's industrial association, according to data released in China in 2007. Volume has more than 8.8 million vehicles, both rose as high as 22.02%, second only to the United States China become the second largest car consumer, expected car sales to 15 million vehicles in 2015. While special car production to develop in the direction of small batch, diversification. Auto mould, jig on the cost and manufacturing cycle brings great pressure to the production unit, therefore, flexible modular fixture has become an inevitable choice for manufacturing enterprises, this can reduce the matching cycle, reduce the production cost.

    2002 years ago, the domestic mold enterprise mainly producing trucks and van mold, car mold in the production structure of mould level only; Welding jig enterprise's production capacity is limited to items within the production of welding fixture and parts assembly fixture. In 2003 ~ 2007, the domestic mold, mold enterprises gradually began to produce the whole car white body welding jig enterprises also have the chassis assembly from four doors, lateral confining to the master of the white body welding assembly line production capacity, and on the main technology is close to the international advanced level.

Some international advanced enterprises have higher levels of welding development ability, and formed by a handful of advanced welding technology platform for vehicle enterprises as the core, high degree of specialization of the pattern of small and medium-sized welding tooling companies for network. Abroad such as Japan's Toyota, Germany Volkswagen, Peugeot, each big auto companies such as general application of three-dimensional digital process planning and simulation software has a history of nearly ten years. Domestic for high yield, high degree of automation of the welding line process planning lack of unified digital information management, has not yet formed this kind of highly automated welding line planning ability.

    Flexible modular fixture development inevitable trend

Due to the high speed development of industry, China's mold, jig industry technology and management of ascension also entered the fast lane, and has set up a have the ability to challenge the fixture manufacturing in the developed countries. Five years ago, China import and export molds China welding production value amount to 5.8:1, in 2007, import and export ratio is 1.45:1, mold exports over 1.4 billion us dollars, it marked China's mold industry to scale into the international market time has come, and the three dimensional flexible combination welding jig has just entered the Chinese welding industry.

Japan's Toyota, Volkswagen and other international leading automotive manufacturers, has a special stamping, welding, assembly, painting process. Them together with the body design personnel in the r&d center of product manufacturability analysis. From the car body design to tooling manufacture all follow the principle of a unified, its integration degree is very high, very beneficial to the body's comprehensive quality, cost, cycle control. China's mold, welding industry mostly in their own way is, difficult to communicate between mold factory, welding fixture manufacturers, many problems have stuck to the auto makers production preparation period, of white body in the product quality and production cycle. So, the welding jig industry is badly in need of an industry standard developed.