Design support device, design support program, and design support method

The design support device addresses the limitations of CAD systems by using 3D A features and shape features to check manufacturability and maintainability, ensuring accurate compliance with design guidelines for plating and welding, thus enhancing the efficiency of CAD model evaluations.

JP7869159B2Active Publication Date: 2026-06-02HITACHI LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
HITACHI LTD
Filing Date
2023-01-20
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing CAD design systems struggle to efficiently check manufacturability and maintainability guidelines beyond geometric features, particularly in aspects like plating and welding, leading to over-detection or omission of design violations.

Method used

A design support device that utilizes 3D A features and shape features to perform rule checks on CAD models, incorporating attributes and annotations to assess manufacturability and maintainability, including plating and welding considerations, by recognizing curvature, radius of curvature, thickness, and concave/convex surfaces, and determining compliance with threshold tables.

Benefits of technology

Enables comprehensive and efficient checking of CAD models against a broader range of design guidelines, reducing over-detection and omission of violations, and enhancing the accuracy of manufacturability and maintainability assessments.

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Abstract

To enlarge a checkable application range of a determination rule for a CAD model and attain a highly efficient checking.SOLUTION: A design support device 10 for executing a rule check using a determination rule on a CAD model 103 of a target object as a design target includes: a feature amount recognition unit 106 for recognizing a 3DA feature amount defined on a CAD model 103 and a shape feature amount of the shape of the object as related information of the object; and a rule check unit 108 for executing the rule check on the basis of the correlation between the 3DA feature amount and the shape feature amount.SELECTED DRAWING: Figure 1
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