Detection Shaft Pressure Control for Consistent Polishing
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Solution Overview
Problem
Current polishing processes rely heavily on manual operation, which fails to consistently control and automatically compensate for pressure between the grinding wheel and workpiece, leading to inconsistent machining quality and efficiency.
Innovation Solution
A method utilizing a detection shaft to measure pressure or moment between the polishing wheel and workpiece, with a controller determining differences and adjusting an adjustment shaft to maintain consistent pressure, ensuring stable and accurate machining by continuously compensating for pressure variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual operation is used for polishing, then the equipment is simple and easy to operate, but the machining accuracy and quality consistency cannot be maintained due to inability to control pressure
Solution Approach 1:
The patent employs a detection shaft with sensors to continuously monitor the pressure between the polishing wheel and workpiece, feeding this information back to a control system that automatically adjusts the polishing pressure to maintain consistency, thereby resolving the contradiction between machining precision and equipment complexity
Solution Approach 2:
The system performs automatic detection and compensation of pressure variations without requiring manual intervention, allowing the polishing equipment to self-regulate and maintain consistent machining quality while reducing operational complexity
2Measurement precision
If pressure sensor is mounted on work holder as in prior art, then the sensor can detect pressure, but it detects all pressures including those caused by coupling factors between grinding object and workpiece
Solution Approach 1:
The patent extracts the pressure detection function from the work holder and relocates it to a dedicated detection shaft positioned between the polishing wheel and workpiece, isolating the measurement from interfering coupling factors and achieving more precise pressure detection
Solution Approach 2:
The detection shaft acts as an intermediary component that specifically measures the direct contact pressure between polishing wheel and workpiece, separating this measurement from other forces and coupling effects that would interfere with accurate detection
3Adaptability or versatility
If frequency converter control is used for grinding wheel, then the rotation speed can be adjusted, but the current feedback cannot accurately reflect the pressure between grinding wheel and workpiece
Solution Approach 1:
The patent introduces a dedicated pressure detection shaft as an intermediary measurement device that directly measures the contact pressure between polishing wheel and workpiece, providing accurate pressure feedback independent of the frequency converter's current signals
Solution Approach 2:
The patent replaces the electrical current-based pressure inference method with a direct mechanical pressure sensing system using the detection shaft and mounted sensors, achieving more accurate and reliable pressure measurement
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach stabilizes the pressure between the polishing wheel and workpiece, enhancing machining quality and efficiency, and reducing manual labor, while accommodating wear in the polishing wheel.
Implementation Method 1
detecting a pressure between a polishing wheel and a polished workpiece by a detection shaft or detecting a moment generated on the detection shaft by the pressure between the polishing wheel and the polished workpiece
Data Source
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AI summary
The invention relates to a method for detecting, controlling and automatically compensating pressure in a polishing process, including: detecting a pressure between a polishing wheel and a polished workpiece by a detection shaft or a moment generated on the detection shaft, and outputting the detected pressure or moment to a controller; comparing the detected pressure or moment with a preset pressure or moment and determining whether there is a difference between them; calculating a compensation feeding amount based on the difference and outputting an adjustment signal to an adjustment shaft based on the compensation feeding amount; and moving the adjustment shaft correspondingly based on the adjustment signal so as to drive the polishing wheel or the polished workpiece to move correspondingly to adjust a relative position between the polishing wheel and the polished workpiece so that the difference keeps consistent.