Grinding Wheel Dressing from Measured Workpiece Profile Offsets
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Solution Overview
Problem
The existing methods for dressing grinding wheels are inefficient and time-consuming, leading to manufacturing inefficiencies due to wear and deformation, especially when multiple grinding stations are used, resulting in workpieces deviating from desired profile dimensions.
Innovation Solution
A system and method for automatically dressing grinding wheels using feedback from a workpiece measurement system, where electronic measurement data from multiple grinding stations is used to modify a shaping algorithm, allowing each station to be custom-shaped based on offset data, ensuring accurate reproduction of desired dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If trial-and-error grinding runs are made to iteratively refine the dressing algorithm, then the grinding wheel eventually produces workpieces with desired profile dimensions, but the process is time consuming and results in manufacturing inefficiencies
Solution Approach 1:
The system measures actual workpiece dimensions and feeds this information back to automatically adjust the dressing algorithm. The measurement system captures offset data from multiple workpieces, and this feedback is used to modify the shaping algorithm parameters, eliminating the need for manual trial-and-error iterations and directly achieving desired precision.
Solution Approach 2:
The dressing system automatically adjusts itself based on measured workpiece data without requiring manual intervention. The system self-corrects the dressing algorithm by processing measurement results and automatically modifying shaping parameters, enabling the grinding wheel to self-optimize for producing workpieces with desired dimensions.
2Reliability
If the grinding wheel is dressed to reshape it after wear and deformation from routine use, then the grinding wheel can continue producing workpieces, but manufacturing inefficiencies are compounded
Solution Approach 1:
The system continuously monitors workpiece dimensions during production and feeds this information back to the dressing system. When wear or deformation is detected through measurement offsets, the system automatically adjusts the dressing parameters to compensate, maintaining consistent grinding wheel performance without stopping production for manual assessment and redressing.
Solution Approach 2:
The system performs automatic dressing adjustments based on real-time measurement feedback before significant performance degradation occurs. By continuously monitoring workpiece dimensions and making proactive adjustments to the dressing algorithm, the system prevents the accumulation of wear effects that would require more extensive redressing operations.
3Productivity
If a grinding wheel has multiple grinding stations used to simultaneously grind multiple workpieces, then productivity increases, but each grinding station wears and deforms differently due to different structural stresses, multiplying manufacturing inefficiencies
Solution Approach 1:
The system divides the grinding wheel into individual grinding stations, each with its own measurement and adjustment parameters. The measurement system captures offset data specific to each grinding station, and the dressing algorithm is segmented to independently adjust each station based on its specific wear characteristics and structural stress conditions, enabling precise control of each station despite simultaneous operation.
Solution Approach 2:
The system applies different dressing parameters and adjustments to each grinding station based on its local conditions and measured performance. Each station receives customized offset corrections tailored to its specific wear pattern and structural stress profile, ensuring that each station maintains optimal precision despite operating simultaneously under different conditions.
Data Source
AI summary
A method and a system are provided for automatically dressing a grinding wheel used to grind workpieces. A workpiece is scanned to determine dimensions of the workpiece. A computer-readable dimensions datafile is generated containing the dimensions of the workpiece. A processor electronically compares the dimensions of the workpiece with reference or desired dimensions to obtain comparison results, and generates a computer-readable comparison datafile containing the comparison results. The processor transmits the comparison datafile containing the comparison results to a CNC controller, which utilizes the comparison results to control a shaping tool used to shape or dress the grinding wheel so that the grinding wheel produces workpieces having the reference or desired dimensions.