Supersonic Inspection Jig Position Limiting Section
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Solution Overview
Problem
Supersonic inspection of areas around holes is challenging due to unstable detection signals caused by frequent position changes of the probe relative to the hole, requiring high skill levels and potentially incomplete inspections when the probe is kept away to stabilize the signal.
Innovation Solution
A supersonic inspection jig with a position limiting section that maintains the probe separate from the hole's central axis, using a flange section with a first annular wall surface to guide the probe's movement, ensuring consistent overlap area between the probe and the hole, and optionally including a supply passage for coupling material to enhance signal stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the probe is kept away from the hole to stabilize the detection signal, then the signal stability is improved, but the inspection coverage of the area around the hole deteriorates
Solution Approach 1:
The patent introduces a flange section with a position limiting section as an intermediary device between the probe and the hole. The position limiting section includes a first annular wall surface that guides the probe to maintain a constant distance from the hole's central axis, ensuring the probe remains in an optimal inspection position without directly contacting or overlapping with the hole, thus stabilizing the detection signal while maintaining inspection coverage
2Manufacturing precision
If the probe position is allowed to vary to improve inspection coverage, then the inspection completeness is improved, but the detection signal stability deteriorates
Solution Approach 1:
The flange section acts as a mediator that provides a stable reference structure. The position limiting section with the first annular wall surface guides the probe along a predetermined path, allowing the probe to cover the necessary inspection area around the hole while maintaining a consistent relative position, thus achieving both inspection completeness and signal stability
Solution Approach 2:
The patent changes the positional parameter of the probe by introducing a constant offset distance from the hole's central axis. The position limiting section ensures the probe maintains this specific distance, transforming the probe's movement from direct overlap with the hole to a parallel trajectory at a fixed distance, which stabilizes the detection signal while preserving inspection effectiveness
3Measurement precision
If high skill level is required to manually control the probe position, then the inspection accuracy can be maintained, but the ease of operation deteriorates
Solution Approach 1:
The position limiting section enables the system to self-regulate the probe position. The first annular wall surface automatically guides the probe to maintain the correct distance from the hole's central axis during movement, eliminating the need for the operator to continuously adjust or monitor the probe position, thus improving ease of operation while maintaining inspection accuracy
Solution Approach 2:
The flange section serves as a mechanical intermediary that translates the operator's simple movement actions into precise probe positioning. By providing the position limiting section with the first annular wall surface, the system automatically enforces the correct probe-to-hole distance, reducing the skill requirement while preserving measurement precision
Data Source
AI summary
A supersonic inspection jig has an insertion section 22 inserted into a hole 10 of an inspection target 1, and a flange section 23 connected with the insertion section 22 and contacting the inspection target 1. The flange section 23 has a flange section first surface 231 which is a surface on the side contacting the inspection target 1 and a flange section second surface 232 which is a surface on the side contacting the probe 41. A position limiting section 26 is provided on the flange section second surface 232 to limit the position of the probe 41 so that the probe 41 is maintained in a position separate from a central axis C of the hole 10. Thus, the inspection around the hole becomes easily executable.