Application of Pro/ENGINEER Software (I)

With the rapid development of industries such as automobiles, motorcycles and home appliances in China, the appearance of industrial products has become more and more complex while meeting the performance requirements, and the manufacture of these products is inseparable from the molds, which requires the mold manufacturing industry to The mold is produced with fast speed, lowest cost and highest quality. In order to achieve the above requirements, mold enterprises can only be invincible in the fierce market competition by using advanced management tools and CAD/CAM integrated manufacturing technology.
Guangzhou Cavity Mould Factory started to apply Pro/ENGINEER software in the design and manufacture of die-casting molds in 1992. It has also completed the "8th Five-Year" key enterprise technology research project "Research and Development of Large Complex Die-casting Dies" and Guangzhou. The key scientific and technological projects of the city, such as research and development projects for the application of computer-aided mold design, manufacturing, and analysis, have led to Pro/ENGINEER software for the second time. The software has been used to develop motorcycle engines, gearboxes, and automobile clutch housings. Large-scale complex die-casting molds such as home appliances have completed the three-dimensional modeling, mold design, and numerical control programming of more than one hundred molds, and have achieved great economic benefits.
The following describes our experience with Pro/ENGINEER software for die casting mold design and manufacturing.
Integration of Pro/ENGINEER Software Manufacturing Technology The key to the integration of mold CAD/CAE/CAM systems is to establish a single graphics database, and to automatically transfer and convert data between CAD, CAE, and CAM units, so that the CAM and CAE phases are completely completed. Absorption of three-dimensional graphics in the CAD stage, reducing the time and error of intermediate modeling; with the help of computers, the mold performance, mold structure, processing accuracy, the flow of metal liquid in the mold and the temperature distribution during the mold working process are repeatedly modified and Optimization, to find the problem before the official production, greatly shorten the time of mold making, improve the accuracy of mold processing.
Pro/ENGINEER software adopts an object-oriented unified database and parametric modeling technology. It has the functions of conceptual design, basic design and detailed design, and provides an excellent platform for integrated mold manufacturing.
Pro/ENGINEER's concurrent engineering technology applies molds to molds in the mold-oriented production process. It is monolithic production, the manufacturing process is complex, and the delivery time is short. If the use of CAD, CAM unit technology to manufacture molds, low manufacturing accuracy, long cycle, in order to solve the above problems, we will introduce parallel engineering technology into the mold manufacturing process.
The so-called concurrent engineering is a factor that the design engineer considers the molding process of the mold and influences the life of the mold when designing the three-dimensional parts of the product, and carries out proofreading and inspection to find out the design process mistake in advance. After the preliminary establishment of the three-dimensional model of the product, several engineers in the design, manufacturing, and auxiliary analysis departments simultaneously performed the mold structure design, engineering detailed design, mold performance-aided analysis, and programming of CNC machining instruction, and each engineer worked on the product. Changes made can be automatically reflected to other engineers, greatly reducing the time for design and numerical control programming.
In the actual production process, using Pro/ENGINEER software, we will design the original mold structure → mold cavity, two-dimensional core design → process preparation → mold cavity, core design three-dimensional modeling → CNC machining instruction programming → NC machining The serial process route was changed to parallel routes designed by different engineers at the same time, and the process preparations not only improved the manufacturing precision of the mold, but also shortened the design and CNC programming time by more than 40%.
The key to the implementation of concurrent engineering is to realize the sharing of three-dimensional graphic data of parts, so that the graphic data used by each engineer is absolutely the same, and the modifications made by each engineer are automatically reflected to other relevant engineers, ensuring the uniqueness and reliability of the data. Sex. The single database and parametric entity feature modeling technology provided by Pro/ENGINEER software provides a reliable technical guarantee for parallel engineering.
Tips for Using Pro/ENGINEER Software Building Your Own Operating Environment By setting up an appropriate config.pro file in Pro/ENGINEER software, you can establish a standard Pro/ENGINEER software runtime environment and a very personalized operating environment to increase the use efficiency. In particular, the use of mapkey is reasonable, and creating a combination of instructions can reduce the time to select menus.
To make the part shaded, just add mapkey $ F4#VIEW; #VIEW; #COSMETIC; SHADE; #DISPLAY; #DONE-RETURN in the config.pro file; press F4 to complete the coloring instructions. Select the menu time to improve the efficiency of use. From this type of push can complete the combination of arbitrary instructions. (To be continued)