Simultaneous Side Face Grinding of Nested Bearing Rings
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Solution Overview
Problem
Current grinding systems for roller bearings require separate adjustments and use of cylindrical rigid metal parts for centering, leading to increased operational time and costs due to wear and tear, especially when grinding inner and outer rings of different diameters, and often result in incorrect grinding due to worn centering bushings.
Innovation Solution
A grinding system that simultaneously grinds the side faces of inner and outer rings with the same width using conveyors to transfer rings nested one within the other, with a radial motion carrier disc and race separator to prevent centering bushing wear and eliminate the need for cylindrical metal parts, allowing for synchronized grinding without separate adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If separate grinding systems are used for inner and outer rings, then grinding precision can be maintained, but production time increases and productivity decreases
Solution Approach 1:
The patent combines the grinding operations for inner rings and outer rings into a single integrated grinding unit. The system uses a common carrier disc and centering mechanism to simultaneously position and grind both ring types, eliminating the need for separate grinding systems while maintaining precision through unified control of the grinding process.
Solution Approach 2:
The grinding unit is designed with universal functionality to handle both inner and outer rings using the same carrier disc, centering bushing, and grinding stones. The system can adapt to different ring types through programmable control that adjusts parameters such as carrier disc rotation speed and grinding stone positioning, allowing one system to perform multiple grinding operations.
2Manufacturing precision
If different sized carrier discs and conveyors are used for rings of different diameters, then proper centering and transport can be achieved, but device complexity and adjustment requirements increase
Solution Approach 1:
The patent employs a universal carrier disc design that can accommodate both inner and outer rings of different diameters. The carrier disc includes adjustable centering bushings and programmable control systems that adapt to different ring sizes without requiring physical changes to the carrier disc itself, thereby reducing device complexity while maintaining centering accuracy.
Solution Approach 2:
The system uses dynamically adjustable parameters including variable rotation speeds of the carrier disc, adjustable grinding stone positions, and programmable control that can be modified in real-time based on the specific ring being processed. This dynamic adaptability eliminates the need for multiple fixed-size carrier discs and conveyors.
3Manufacturing precision
If inner and outer rings are ground separately, then grinding quality can be controlled, but operational time increases and productivity decreases
Solution Approach 1:
The patent merges the grinding operations for inner and outer rings into a single simultaneous process. Both rings are loaded onto the same carrier disc and positioned using the same centering mechanism, allowing both to be ground at the same time by appropriately positioned grinding stones, thereby halving the operational time while maintaining quality control through unified process parameters.
Solution Approach 2:
The system enables continuous grinding operations where the carrier disc rotates continuously and both inner and outer rings are ground simultaneously without interruption. The programmable control ensures that grinding parameters are optimized for each ring type while maintaining continuous operation, eliminating the idle time associated with separate batch processing.
4Manufacturing precision
If centering bushings are used for inner ring grinding, then proper positioning can be achieved, but the bushings wear down quickly requiring replacement and increasing operational interruptions
Solution Approach 1:
The patent implements a protective mechanism where the centering bushing is designed with replaceable wear-resistant inserts or coatings that extend its service life. The system also includes monitoring capabilities that detect bushing wear in advance, allowing for planned maintenance during scheduled downtime rather than unexpected interruptions, thereby cushioning against operational disruptions.
Solution Approach 2:
The system uses programmable control to adjust grinding parameters such as speed, pressure, and stone positioning based on the specific ring being processed. This precise parameter control optimizes the grinding process to minimize contact pressure and heat generation on the centering bushing, thereby reducing wear rate while maintaining positioning accuracy.
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 system enables faster production by preventing centering bushing wear, eliminating the need for cylindrical metal parts, and allowing for simultaneous grinding of inner and outer rings without requiring different conveyor adjustments, thus reducing operational time and costs.
Implementation Method 1
two grinding stones positioned on top of each other with their rotating axes being coaxial and vertical, suitable for grinding the side faces of the inner and outer rings
Implementation Method 2
conveyors which transfer the rings that have been placed one within the other onto the carrier disc
Implementation Method 3
a carrier disc which carries the rings to the grinding stone with radial motion
Data Source
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AI summary
The invention is related to a grinding system which allows the grinding of the side faces of inner and outer rings of roller bearings, having the same width, together. The grinding system provided in order to reach the object of this invention, comprises conveyors (7) which transfer the rings that have been placed one within the other onto the carrier disc (3), a carrier disc (3) which carries the rings to the grinding stone with radial motion and a race separator (4) which separates the rings from each other.