Relying on the multi-dimensional standard body of new lathes
July 07 22:01:37, 2025
The general part model for creating standard components is designed based on specific parameters. For a straight plate standard, the key parameters include the nominal diameter of the matching thread and the length of the platen, denoted as L. For example, a straight plate with a thread diameter of 12 mm and a length of 120 mm would be labeled as "pressure plate 12@120GB2187_80." The modeling process involves using a combination of extrusion, rotation, and sweep commands to generate a 3D solid model. The dimensions of the model are predefined according to standard data, and the entire process supports parameterized design. If the number of variables is insufficient for full size control, additional constraints should be considered during the modeling phase. Once completed, the model provides a clear and accurate representation of the component.
To enhance flexibility, a family table is created to adjust variable names in the model, ensuring that each parameter's name aligns with the corresponding code in the national standard. This makes it easier to manage and update the family table efficiently. When editing the family table, different scenarios such as size, parameters, features, or groups can be considered. During the actual operation, attributes like size and feature are selected to ensure that each instance in the family table is clearly distinguishable.
In the input phase, the family table includes the mark codes for various types of straight press plates along with their respective parameter values, with each instance occupying one row. Feature attributes are marked with Y (YES) or N (NO). After generating the family table, a check command must be executed to verify that all instances can be successfully generated. If any instance fails, the cause must be investigated, and adjustments to the model or family table parameters should be made until all entries are validated.
In conclusion, by using Pro/ENGINEER as the platform, this method leverages non-programming databases and parameterization through family tables. It avoids the limitations of traditional library-based approaches, reduces development workload, and offers a practical and efficient solution. The standard parts library is managed via menu files, enabling quick access and improving overall efficiency. Implementing this standard parts library for machine tool fixtures significantly enhances the application of Pro/ENGINEER in fixture design, boosting both design quality and productivity.
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