Wheel Blank End Face Correction via Closed-Loop Grinding
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Solution Overview
Problem
Casting deformation in aluminum alloy wheel blanks leads to low positioning precision, resulting in machining rejects due to height differences in the positioning end face, which existing technologies have not adequately addressed.
Innovation Solution
A wheel blank positioning end face correction device comprising a rotating platform with detection and correction stations, equipped with servo motors, guide rails, driven grooved friction wheels, and a distance measuring sensor, allowing for closed-loop deformation measurement and correction using a grinding wheel, enhancing precision and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If no correction device is used, then the production process is simple, but the positioning precision is low due to casting deformation
Solution Approach 1:
The device is divided into multiple independent functional modules: a rotating platform for holding wheel blanks, a grinding wheel assembly for correction, a distance measuring sensor for detection, and a control system. Each module operates independently but coordinates through the control system, allowing the complex correction function to be achieved through modular components rather than a monolithic structure.
Solution Approach 2:
The distance measuring sensor acts as an intermediary between the wheel blank and the control system, providing real-time feedback on end face deformation. This intermediary component enables precise measurement and control without requiring direct mechanical contact during the measurement phase, separating the detection and correction functions.
2Manufacturing precision
If traditional correction methods are used, then the device structure is simple, but the correction precision is insufficient due to height differences in positioning end face
Solution Approach 1:
The distance measuring sensor continuously monitors the end face deformation of the wheel blank and provides real-time feedback to the control system. The control system processes this feedback information and automatically adjusts the grinding wheel's position and grinding parameters, creating a closed-loop control system that ensures high correction precision while maintaining automation.
Solution Approach 2:
The patent replaces traditional mechanical measurement and adjustment mechanisms with a combination of optical/distance sensing technology and electronic control. Instead of manual measurement and adjustment, the system uses non-contact distance measuring sensors and automated control algorithms to achieve precise correction, reducing mechanical complexity while improving precision.
3Productivity
If manual correction is performed, then the equipment cost is low, but the production efficiency is low due to time-consuming correction process
Solution Approach 1:
The rotating platform enables continuous rotation of the wheel blank, allowing the grinding wheel to continuously correct the end face surface as the blank rotates. This continuous correction process eliminates the need for repeated positioning and adjustment operations, maintaining constant corrective action throughout the rotation cycle and significantly improving production efficiency.
Solution Approach 2:
The system enables self-correction through automated control. The distance measuring sensor detects deformations, the control system processes the data, and the grinding wheel automatically adjusts and corrects the end face without manual intervention. This self-service capability reduces labor requirements and accelerates the correction process, improving productivity while managing equipment complexity through automation.
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
The device significantly improves positioning precision by correcting end face deformations in real-time, reducing rejects and increasing production efficiency through flexible and stable operation.
Implementation Method 1
a grinding wheel (19), a grinding wheel drive motor (20)
Implementation Method 2
driven grooved friction wheels, and a distance measuring sensor, allowing for closed-loop deformation measurement and correction
Data Source
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AI summary
Disclosed is a wheel blank positioning end face correction device, comprising a frame, a servo motor I, a support frame, a bearing seat, a bearing, a shaft, a rotating platform, a guide rail, a cylinder, a left slide plate, a left bearing seat, a left shaft, a left bearing, a left driven grooved friction wheel, a left workbench, corner cylinder pressure claws, mandrel seats, mandrels, a grinding wheel, a grinding wheel drive motor, a support plate, a feeding slide plate, feeding guide rails, a linear motor, a distance measuring sensor, a fixed plate, a servo motor II, a driving grooved friction wheel, a right workbench, a right driven grooved friction wheel, a right shaft, a gear rack structure and a right slide plate. By adopting closed-loop control of first measurement and then correction, the precision of correction is greatly improved; and by setting double stations, deformation of next blank to be corrected is measured while one blank is corrected.