Creation of feature functions According to the hierarchical structure of the feature element tree, create a feature function in the Pro/Toolkit application by the following steps: (1) Call the ProElementAlloc function to allocate the temporary memory area for each element in the feature element tree=4>. (2) Set the value of the feature element = 4>. (3) Call the feature creation function ProFeatureCreate, and pass the value of the temporary memory area to Pro/E to generate a new feature=4>.
Menu settings After the application is loaded, select the different standard parts to be generated from the menu. According to the structural characteristics of each standard part and the standard of plastic mold structure parts (GB4169.1/11) 84), the level of the standard parts is set on the menu.
User interface development user interface is the window between user and program interaction. The user's operation is mainly the selection of standard component parameters or the input of non-standard parts main parameters. The main contents include the following parts: standard plastic type selection of many plastics There are various models of the mold standard parts, such as the push rod is divided into A type B type C type D type and E type. Their structure is similar, but the specific parameters are different, so the program is not much different. Standard parts of various models use the same function in the same part of the program, different parts set different functions, and the user selects the type of part through the property page in the interface.
The selection system of the size series has previously entered the relevant dimensions of the standard parts into the database, selects the size series through the ComBox control in the user interface, retrieves the data according to the index number corresponding to a certain size, and then automatically completes the parameter input of the program. For non-standard part sizes, the user can select the last item/custom 0 in the dimension series and enter a value in the new dialog to determine the parameters required for the program.
The pre-display user interface has an area for displaying the 3D view and 2D main view of the part. The structure of the part is clearly displayed in the 2D view and the main parameters are marked. The technical condition query user can click the /Technical condition query 0 button in the interface to query the technical conditions of the corresponding part.
Application Development Example This paper establishes the automatic generation of the three-dimensional view of the guide sleeve in the injection mold, which is used by the mold designer as an example to illustrate the development of the CAD 3D standard parts library of the injection mold based on Pro/Toolkit technology on the Pro/Engineer platform.
First, use the functions provided by Pro/Toolkit to write the driver function of the guide set 3D entity; create an MFC-based user interface, set the corresponding variables, and use the VC++ message map to manage the driver functions using the interface. Then, customize the user menu in the Pro/E environment, the run is loaded, and the program and menu are unified.
(1) After the program registration is running, click the = Guide > button in the menu bar to pop up the guide type selection interface shown. (2) Select the type of lead bushing (such as type), select the guide sleeve size series in the Select size series drop-down box, click the = OK > button to pop up the basic size dialog interface, as shown. In the basic size dialog interface, press the =OK> button to accept the basic size values ​​retrieved from the database, or enter a different value to create a non-standard size part. (3) Click the = OK button to achieve automatic drawing and complete the design of standard parts.
Conclusion With Pro/E as the development platform, the establishment and implementation of the three-dimensional standard parts library of small and medium-sized injection mold bases makes the injection mold CAD process easy and fast. The interface between Pro/E and MFC breaks through the limitations of Pro/Toolkit, overcomes the problem of Pro/E in 2 developments, makes the user interface more convenient, and the interface is more beautiful.
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