The key technology of the system is implemented. Since the gear blank forging is an axisymmetric figure, its main section can completely and accurately represent the entire shape and size of the gear. Therefore, it is only necessary to input the main section as a two-dimensional figure. Moreover, the size of the gear blank forging is determined only by a small number of dimensions such as the tip diameter, the tooth width, and the shaft diameter of the gear part, regardless of the tooth shape parameter. According to the shape characteristics of a gear product of a factory, the gear blank forgings are classified into three categories. The shape of each type of gear blank forgings is similar, the die forging steps are the same, and the number of dimensions is the same. To this end, the part drawing information input adopts the classification size input method, that is, the direct keyboard input size is pressed according to the prompt of the dialog box, and the system automatically generates the part contour map.
Data management forging tolerances, machining allowances, draft angles, fillet radii, punched skin thickness, material mechanical properties, post-forging heat treatment temperature and time, and press technical parameters, and other heat-resistant conveyor belts The "VisualDateManager" tool provided by VB6.0 creates a database in the Visual state using the Access database format. Use the data control to open the database; use the data access object, directly write the program code to access the database, to achieve the query of the database.
Application example A gear part shape produced by a factory, the system can quickly and accurately formulate the forging process and design the mold. The system standardizes, standardizes and serializes the process design, improves the design quality; the system runs reliably, from the input of part information to the process card and forging drawing output, it only takes a few minutes to improve the design efficiency; the system also makes the designer Freed from the heavy labor of manually checking manuals and climbing boards, the board was removed and the working conditions were improved. Considering the practical application of the closed blank forging process of a gear blank, a full use of human-computer interaction technology was Enables designers to modify unsatisfactory results in a timely manner. The development of this system will promote the popularization of the application of closed die forging technology and the improvement of the design level.
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