Dieless multi-point forming technology is another advanced manufacturing technology that uses height-adjustable punch groups to replace traditional molds for sheet metal surface forming. The dieless multi-point forming system uses CAD/CAM/CAT technology as the main method to realize it quickly and economically Automatic shaping of three-dimensional surfaces.

Jilin University of Technology has undertaken the national key scientific and technological research projects related to moldless forming, and has independently designed and manufactured moldless multi-point forming equipment of international standards.　　 Compared with the Massachusetts Institute of Technology in the United States, the University of Tokyo in Japan, and the Tokyo Institute of Technology in Japan, this technology in our country is in the position of theoretical research and practical application, and it is currently developing towards popularization and application. 3. The resin stamping die was successfully used in the trial production of domestic cars for the first time. designed and manufactured 12 sets of resin molds for the modified trial production of the new Xiaohongqi car.

The 12 sets of wholesale injection syringe mould are the drawing molds for large and complex interior and exterior covering parts such as the trunk, the hood, the front and rear fenders, etc. , Its main feature is that the mold surface is based on the main model processed by CAD/CAM, and is molded by high-strength resin refined by Swiss Ciba. The gap between the convex and concave molds is accurately controlled by imported special wax pieces, and the dimensional accuracy of the mold is high. The cycle time can be shortened by one-half to two-thirds, and the manufacturing cost can be saved about 10 million yuan (12 sets of molds). It has opened up a new way for the trial production and small batch production of cars in my country, which is the first in China. Swiss Ciba Fine Chemical experts believe that it can reach the international level in the 1990s.　　

5. On-site mold inspection technology 　　The development of precision molds has increasingly higher requirements for measurement. The precision three-coordinate measuring machine has been restricted by the environment for a long time and is rarely used in the production site. The new generation of three-coordinate measuring machines basically have temperature compensation and adopt anti-vibration materials, improve dust-proof measures, improve environmental adaptability and use reliability, so that they can be easily installed in the workshop to realize the characteristics of measuring on-site .,

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