Automated Dimensional Drawing Generation for Vehicle Models
Solution Overview
Problem
The manual process of generating dimensional drawings for objects, such as vehicles, is tedious, prone to errors, and requires significant time and resources, especially when design changes occur, necessitating a more efficient and accurate method for dimensioning and reporting.
Innovation Solution
An automated dimensional drawing generation apparatus that includes an element database, a model sectioning tool, a dimensioning tool with algorithms, and a plotting tool, which automatically detects and organizes dimension values from a model, generating accurate and efficient dimensional drawings compliant with standards like SAE J1100.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual dimensioning process is used, then flexibility in handling design changes is maintained, but time consumption and error rate increase significantly
Solution Approach 1:
The system performs automatic dimensioning by having the computer automatically detect model elements, calculate dimensions, and generate drawings without manual intervention. The dimensioning tool autonomously sections the model, identifies relevant elements, computes dimension values using algorithms, and produces the final drawing, eliminating the need for manual measurement and recording while maintaining high accuracy through consistent automated processes.
Solution Approach 2:
The patent replaces the manual mechanical process of measuring and recording dimensions with an automated computer-based system. The dimensioning tool uses software algorithms to automatically calculate dimensions from the model data, substituting human operators with computational processes that are both faster and more accurate, while the plotting tool automatically generates the dimensional drawing without manual drafting.
2Productivity
If automated dimensioning is implemented, then productivity and accuracy improve, but system complexity increases
Solution Approach 1:
The automated dimensioning system is divided into distinct functional modules: a model sectioning tool that divides the model into manageable sections, an element database that stores model elements, a dimensioning tool with multiple algorithms for different dimension types, and a plotting tool for generating drawings. This segmentation allows each component to perform its specific function efficiently while reducing the overall complexity through modular design, where each module can be independently developed and maintained.
Solution Approach 2:
The dimensioning tool is designed as a universal system that can handle multiple types of dimensions (overall dimensions, local dimensions, aligned dimensions, continuous dimensions) and various model elements (points, lines, curves, surfaces) through a single integrated platform. The system accommodates different dimensioning standards (SAE J1100, ISO, ANSI) and can process different object types, reducing the need for multiple specialized tools and simplifying the overall system architecture.
3Loss of information
If comprehensive dimensioning is performed, then complete information is obtained, but time and resource consumption increase
Solution Approach 1:
The system performs preliminary sectioning of the model into standard views (front, rear, left, right, top, bottom) and pre-identifies all model elements and their properties before dimensioning begins. The element database pre-stores geometric data, and the dimensioning tool pre-calculates which dimensions are required based on the selected standard, allowing the actual dimensioning process to proceed rapidly without ad-hoc analysis during the measurement phase.
Solution Approach 2:
The automated system maintains continuous operation throughout the dimensioning process, with the dimensioning tool continuously calculating dimension values as it processes each model element, and the plotting tool continuously generating the drawing output. This eliminates the intermittent pauses and transitions inherent in manual processes, where the operator must repeatedly switch between measuring, calculating, recording, and drafting, thereby completing comprehensive dimensioning in less time.
Data Source
AI summary
A dimensioning apparatus for generating a dimensional drawing from a model includes an element database with predetermined element names. A plurality of model elements can be associated with corresponding element names. The apparatus also includes a model sectioning tool operable to section the model to thereby generate at least a portion of the model elements. The apparatus further includes a dimensioning tool with a plurality of predetermined dimension names and a plurality of dimensioning algorithms associated with corresponding dimension names. At least two of the model elements are utilized by each of the dimensioning algorithms to thereby automatically detect dimension values of the model. The dimensioning tool is further operable to associate the detected dimension values with corresponding ones of the dimension names. In addition, the dimensioning apparatus includes a plotting tool operable to output the dimensional drawing showing the dimension values of the model detected by the dimensioning tool.