Snap Ring Mounting System With Inner Diameter Verification
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Solution Overview
Problem
Conventional systems for mounting snap rings cannot accurately verify if a snap ring is properly mounted, leading to potential shifting during use in components like clutches or brakes.
Innovation Solution
A system comprising a snap ring guide unit, assembling unit, inner diameter measuring unit, and control unit that uses actuating devices to guide, push, and measure the snap ring, ensuring accurate mounting by comparing the measured diameter with a predetermined value.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional snap ring mounting system is used, then the snap ring can be mounted automatically, but the system cannot verify whether the snap ring has been accurately mounted
Solution Approach 1:
The patent implements a feedback mechanism by introducing a snap ring inner diameter measuring unit that measures the actual inner diameter of the mounted snap ring and compares it with the standard value. The control unit receives the measurement signal, determines whether the snap ring is accurately mounted, and provides feedback control to ensure mounting quality. This resolves the contradiction by adding verification capability without excessive complexity.
Solution Approach 2:
The patent replaces complex mechanical verification mechanisms with a measurement-based approach. Instead of using complicated mechanical fixtures to verify snap ring mounting accuracy, the system uses a measuring jig with a linear gauge to obtain the inner diameter value, which is then processed electronically by a control unit. This substitution of mechanical verification with measurement and control reduces overall system complexity while improving reliability.
2Reliability
If no measurement verification is performed, then the system remains simple, but the snap ring may shift from its mounted position causing component failure
Solution Approach 1:
The measuring unit provides real-time feedback on snap ring mounting accuracy by measuring the inner diameter and comparing it with the standard value. This feedback mechanism enables detection of improper mounting before the snap ring can shift during operation, thereby ensuring position stability without requiring complex detection systems.
Solution Approach 2:
The snap ring itself serves as the measurement object - its inner diameter directly indicates whether it is properly mounted. By measuring a parameter inherent to the snap ring (inner diameter), the system uses the component's own geometry for self-verification, eliminating the need for external reference standards or complex detection apparatus.
3Manufacturing precision
If multiple actuating devices are added for precise control, then mounting precision improves, but device complexity increases
Solution Approach 1:
The patent divides the mounting and measurement functions into separate modular units: a snap ring guide unit for positioning, a snap ring assembling unit for mounting, and a snap ring inner diameter measuring unit for verification. Each unit has its own actuating device, allowing independent optimization and control. This segmentation improves mounting precision while managing complexity through modular design.
Solution Approach 2:
The support portion serves multiple functions: it supports both the snap ring assembling jig and the snap ring inner diameter measuring jig, and both jigs are pivotally mounted to the same support portion. This multi-functionality reduces the number of separate actuating devices needed, as the support portion and its actuating device serve dual purposes for both mounting and measurement operations.
Data Source
AI summary
A system for mounting a snap ring to a workpiece includes: a supporting structure; a snap ring guide unit mounted to the supporting structure by a first actuating device; a snap ring assembling unit including a supporting portion connected to the supporting structure by a second actuating device, a snap ring assembling jig, and a third actuating device, which pivots the assembling jig; a snap ring inner diameter measuring unit including a snap ring inner diameter measuring jig pivotally connected to the supporting portion of the snap ring assembling unit, a fourth actuating device, which pivots the inner diameter measuring jig, and a linear gauge that measures the pivotal position of the inner diameter measuring jig; and a control unit controlling the actuating devices and determining, based on a comparison of the measured snap ring mounted diameter and a predetermined value, whether the snap ring has been accurately mounted.