Conductive Wire Position Inspection Using Reference Body
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Solution Overview
Problem
Current conductive-wire position inspection methods are inefficient due to complex calculations required for each tip surface, leading to prolonged inspection times and poor defect detection efficiency.
Innovation Solution
A method and device that utilize a reference body to simplify the inspection by imaging the conductive wire and reference body, calculating the relative position and angle, and determining if the deviations are within permissible ranges, eliminating the need for individual tip surface calculations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the inspection method uses complex calculation for each tip surface to determine position accuracy, then measurement precision is improved, but inspection time increases and productivity deteriorates
Solution Approach 1:
The patent uses a reference body with a known shape (such as a circular arc shape) that is imaged alongside the conductive wire. Instead of performing complex calculations on each tip surface, the system captures an image containing both the reference body and the conductive wire, then determines position by comparing the relative positions in the image. This copying approach replaces complex individual calculations with a simpler relative position measurement, maintaining precision while improving efficiency.
Solution Approach 2:
The reference body serves as an intermediary element that facilitates position measurement. By placing a reference body with a known geometric shape in the imaging field, the system can determine the position of the conductive wire relative to this reference. This intermediary approach simplifies the measurement process compared to direct complex calculations on each tip surface, resolving the contradiction between precision and efficiency.
2Measurement precision
If the inspection method performs calculation on individual tip surfaces, then measurement accuracy is maintained, but the time required for complete inspection increases
Solution Approach 1:
The patent merges the measurement of multiple tip surfaces into a single imaging operation. By capturing an image that includes the reference body and multiple conductive wires or multiple tips in one shot, the system performs relative position measurements for all targets simultaneously. This merging approach eliminates the need for sequential individual calculations, significantly reducing inspection time while maintaining measurement accuracy through consistent reference comparison.
Solution Approach 2:
The reference body is copied into the imaging field alongside the conductive wires, creating a reference framework that enables simultaneous measurement of multiple positions. This copying technique allows the system to determine relative positions of multiple tips in a single operation rather than performing separate calculations for each tip, thereby reducing total inspection time while preserving measurement precision.
Data Source
AI summary
A conductive-wire position inspecting device includes: a reference body disposed in a radial direction of a stator core; an imaging device configured to image a conductive wire and the reference body; and a calculating device configured to find a relative position and a relative angle of the conductive wire with respect to the reference body, based on an obtained image. In addition, the conductive-wire position inspecting device includes a determining device configured to determine whether or not the found relative position and relative angle are within respective permissible ranges, and if they are within the permissible ranges, determine the position of the conductive wire to be acceptable.