The user interface of the semi-axle mold standard parts library uses VB to develop a user interface, which enables users to accurately and quickly select the required parts. The standard part library of the semi-axle gear mold described in the system is mainly realized by the guide positioning standard part, the semi-axle upper mold standard part, the semi-axle lower mold standard part, the semi-axis mold base and the upper and lower tooth molds.
The following is a detailed description of the semi-flat-expansion lower die standard component, and the human-machine interface of the lower die standard component is shown. It can be seen from the figure that the semi-axis lower mold standard parts library is composed of four attribute pages of the lower mold stress ring, the lower mold plate, the lower mold plate and the lower core plate. The interface type list box lists the types of standard parts; the specification list box gives the specifications of different types of standard parts; the picture frame is used to display the shape of the standard parts in real time; after the program runs, through VB and Access The connection of the database, the DataGrid control is displayed in the form of a database, and the attributes such as the mark and size of the standard part are given. When the user clicks the lower mold stress circle with the left mouse button, the standard mark, size and other attributes are obtained. Add, delete, draw, draw, and exit the five buttons below the interface for the Command button. When you click Add, Delete, the size will be increased or decreased as the size of the side gear changes. When the user selects a row of data records in the displayed data table, the specification of the desired drawing is selected. When the drawing is clicked, the SolidWorks drawing platform is started to draw the three-dimensional graphics according to the selected row data. Clicking on the drawing button will generate a drawing corresponding to the 3D drawing.
Make full use of the feature-based parametric solid modeling function provided by Solid-works, and complete the geometric constraint and size constraint definition of the standard part graphic in the modeling process. The following model stress ring is taken as an example to illustrate the design process of the three-dimensional modeling of the semi-axle gear mold standard parts.
It is the assembly drawing of the semi-axle gear mold. In the assembly, the following molds are used as fixing parts, and other standard parts are assembled in accordance with the assembly relationship on the fixing parts; the required constraint relationship can be added between the parts. So that it is closer to reality.
Conclusion In this paper, the characteristics of the standard components used in the design of precision forging die are more. The 3D design software SolidWorks is used as the support platform. The API programming interface provided by SolidWorks is used to establish the standard component parameterized template library. Standard-driven, standard parts with specific geometric information and other information are automatically generated. Therefore, the parametric design and three-dimensional modeling of the standard parts of the semi-axle gear mold are carried out. The work efficiency of the structural design is greatly improved, and the operation is more simple and convenient. The system can be easily extended to the establishment of a three-dimensional graphics library of other mechanical standard parts.
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