For the SolidWorks 2001 system that supports parametric modeling, creating a 3D standard parts library is simplified by designing template models for each type of standard component. Once these templates are created, the program can automatically adjust dimensions based on parameters. The process works as follows: by retrieving the parameter values of a standard part from a database and combining them with the corresponding graphic template file, the SolidWorks API is called to drive the size modifications. This ensures that new models meet the required specifications without the need to recreate the same part repeatedly, thus enabling the efficient creation of a fully parametric standard parts library.
SolidWorks 2001 allows seamless data exchange with other CAD systems through standard file formats. Standard components designed in SolidWorks can be exported in different formats and imported into other 3D modeling software such as Pro/ENGINEER, UG, MDT, or SolidEdge. This makes it possible to share data across platforms without the necessity of building a separate standard parts library for each system.
Data extraction can be achieved using various interfaces like OLEDB, ADO, or ODBC. ADO (ActiveX Data Objects) is a flexible and simple interface that provides access to multiple data sources. It operates independently of programming languages and uses COM components, making it highly versatile. As an alternative to older technologies, ADO is increasingly becoming the preferred method for data access. In this system, ADO is used as the main data interface, ensuring code reusability, operational efficiency, and easier integration with other CAD systems.
SolidWorks 2001 also features powerful macro capabilities, which greatly simplify the development process. Since standard parts of the same type only differ in their dimensional parameters, there's no need to record the entire modeling process. Instead, only the steps involved in adjusting the driving dimensions are recorded. These recorded macros are then modified by replacing key data with variables. The variable values are retrieved from a database containing the parameter table of the standard part series, and the macro is saved and used within a VB application.
As an example of secondary development, the following steps outline how to create a hex bolt part library based on the SolidWorks 2001 API:
1. Create a hex bolt model in the SolidWorks 2001 environment, using national standard sizes as driving parameters, and record the process of modifying all dimension parameters.
2. In the Access 2000 environment, create a database file named "hex bolt 1.mdb" based on the GB30 national standard.
3. Use the VB6.0 interface to develop the program.
4. Run the database according to user requirements, retrieve the necessary parameter data, select the corresponding model file, and generate the required 3D standard part by driving the data accordingly. Finally, return the result to the user.
The system architecture includes the following code snippet in the application:
```vb
Dim swApp As Object
Dim Part As Object
Define object variables
Dim d, s, h, m, l, l0, ral, a2, aa As Double
Define parameter size variables
Set swApp = CreateObject("SldWorks.Application")
```
This approach not only streamlines the design process but also enhances flexibility and scalability in managing standard components across different projects and systems.
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