Adaptive Microjoint Width for Collision-Free Workpiece Machining
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Solution Overview
Problem
Existing methods for determining microjoint width and position in workpiece machining are inadequate, leading to microjoints that are either too wide, making removal difficult, or too narrow, causing workpiece parts to tilt or collide with machining tools, due to insufficient consideration of machining parameters and workpiece properties.
Innovation Solution
A method to determine the minimum microjoint width based on machining parameters such as cutting gas pressure, acceleration, and static friction, along with workpiece properties like material properties and geometry, to ensure secure attachment and prevent tilting or collisions during machining.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed microjoint width is used for all workpiece parts, then programming is simplified, but small workpiece parts have microjoints that are too wide causing removal difficulties
Solution Approach 1:
The microjoint width is made dynamic and adaptive rather than fixed. The system automatically calculates and adjusts the microjoint width based on workpiece-specific parameters (area, perimeter, thickness) and machining parameters (gas pressure, acceleration) for each individual workpiece part, allowing optimal width variation across different parts while maintaining automated programming
Solution Approach 2:
The invention changes the parameter of microjoint width from a constant value to a variable parameter that is calculated based on multiple factors including workpiece area, perimeter, thickness, material density, cutting gas pressure, and machining acceleration. This parameter adaptation resolves the contradiction by optimizing width for each part's specific conditions
2Device complexity
If a fixed microjoint width is used for all workpiece parts, then programming is simplified, but collision prevention during machining is compromised
Solution Approach 1:
The microjoint width adapts dynamically to prevent collisions by considering the specific geometry and mass distribution of each workpiece part. Larger or more vulnerable parts receive wider microjoints for secure attachment, while smaller parts receive narrower microjoints appropriate to their size, all calculated automatically by the programming system
Solution Approach 2:
The system varies the microjoint width parameter based on workpiece characteristics and machining conditions, including gas pressure effects and acceleration forces, to ensure each part has sufficient attachment security appropriate to its specific collision risk profile
3Reliability
If larger microjoint width is used, then workpiece part attachment security is improved, but subsequent work to remove attachment marks increases
Solution Approach 1:
The system optimizes microjoint width to the minimum necessary value based on calculated parameters including workpiece area, perimeter, thickness, material density, gas pressure, and acceleration. This prevents excessive width that would create large attachment marks requiring removal, while still providing sufficient security for each specific part
Solution Approach 2:
The programming system automatically calculates and sets the optimal microjoint width without requiring manual intervention or subsequent removal work. The system serves itself by determining the precise width needed for each part, eliminating the need for operators to manually remove excessive attachment marks
Data Source
AI summary
A method for determining a minimum width of a microjoint by which, when machining a workpiece, in particular a sheet-like workpiece, a workpiece part remains connected to a remaining workpiece of the workpiece. In the method, the minimum width of the microjoint is determined in dependence on at least one machining parameter which influences a relative position of the workpiece part in relation to the remaining workpiece during the machining of the workpiece. A further method determines an attachment position of such a microjoint and a still further method machines the workpiece.