Multi-Point Plug Gauge for Simultaneous Bore Dimension Measurement
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Solution Overview
Problem
Traditional bore measurement tools face challenges such as inability to measure deep within bores, maintaining position for accurate measurements, and insufficient data collection, especially when determining bore taper, erosion, or unevenness, which increases production time.
Innovation Solution
A plug gauge system with multiple contact elements and sensors that allow for simultaneous diametric measurements by inserting a housing with first and second contact elements and sensors into a bore, enabling radial movement and detection of bore dimensions through linear and angular displacement, facilitating efficient data collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional single-point measurement tools are used, then the device complexity is low, but the measurement precision and data completeness are insufficient for characterizing bore conditions
Solution Approach 1:
The plug gauge is divided into multiple independent measurement assemblies, each containing contact elements and sensors. Each assembly can independently measure bore dimensions at different locations, allowing simultaneous multi-point measurement while maintaining manageable complexity through modular design
Solution Approach 2:
The invention transitions from single-point measurement to multi-point measurement by adding spatial dimensionality. Multiple contact elements are positioned at different radial and axial locations within the bore, enabling comprehensive characterization of bore conditions through three-dimensional measurement coverage
2Measurement precision
If multiple measurements are taken sequentially with traditional tools, then the measurement precision can be maintained, but the productivity decreases due to increased measurement time
Solution Approach 1:
Multiple measurement functions are merged into a single plug gauge device. Several contact elements and sensors are integrated into one instrument that can be inserted into the bore simultaneously, allowing multiple diameter measurements to be taken at once rather than sequentially, thereby significantly improving productivity while maintaining precision
Solution Approach 2:
The plug gauge enables continuous data collection at multiple bore locations during a single insertion event. All measurement assemblies operate simultaneously and continuously record bore dimensions at their respective positions, eliminating the need for repeated insertions and maintaining uninterrupted measurement flow
3Length of moving object
If traditional measuring tools are used, then the device complexity is low, but the ability to measure deep within bores and maintain proper position is limited
Solution Approach 1:
Multiple measurement assemblies are nested within the plug gauge housing in a compact arrangement. The contact elements and sensors are positioned concentrically and axially within the bore, allowing the device to reach deep into the bore while maintaining a compact external profile that fits within standard plug gauge dimensions
Data Source
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AI summary
A plug gauge includes a housing, defining an internal volume, first openings, and second openings. The plug gauge includes first contact elements, each at least partially received in a respective one of the first openings. The plug gauge includes a first plunger in the internal volume and movable relative to the housing. The first plunger is biased to urge the first contact elements radially outward through the first openings. The plug gauge includes a first sensor sensing movement of the first plunger. The plug gauge includes second contact elements, each at least partially received in a respective one of the second openings. The plug gauge includes a second plunger in the internal volume and movable relative to the housing. The second plunger is biased to urge the second contact elements radially outward through the second openings. The plug gauge includes a second sensor sensing movement of the second plunger.