Hose Connector Socket Shape Measurement for Consistent Crimp Inspection
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Solution Overview
Problem
Manual measurement of hose connector fittings using calipers results in varying and unreliable data, affecting reproducibility and efficiency in acceptance determination.
Innovation Solution
A shape measuring device with a fitting support portion, hose support portion, two-dimensional shape detection unit, and rotary movement portion that detects radial position data of the socket's surface across its circumference, providing accurate and consistent measurement data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual measurement using calipers is performed, then measurement can be conducted with simple equipment, but measurement data varies significantly and reproducibility is poor
Solution Approach 1:
The patent replaces manual mechanical measurement with calipers by introducing an automated measurement device that uses a probe to mechanically contact the socket surface. This automated system moves the probe along the axial direction and rotates it about the axial center to collect radial position data, eliminating human error and improving measurement consistency while maintaining mechanical measurement principles.
Solution Approach 2:
The measurement device performs self-measurement by automatically moving the probe along the axial direction and rotating it about the axial center without requiring manual operation. The system autonomously collects radial position data at multiple points around the circumference, processes the data to calculate outer diameter and crimping position, and generates measurement results, thereby achieving consistent and reproducible measurements.
2Measurement precision
If automated shape detection is implemented, then measurement precision and reproducibility improve, but device complexity increases
Solution Approach 1:
The measurement device integrates multiple functions into a single system: the probe both contacts the socket surface for measurement and rotates about the axial center to collect circumferential data. The same measurement probe serves multiple purposes by moving along the axial direction and rotating, eliminating the need for separate measurement instruments and reducing overall system complexity despite the enhanced measurement capabilities.
3Measurement precision
If complete circumferential measurement is performed, then measurement accuracy improves, but measurement time increases
Solution Approach 1:
The measurement device continuously collects radial position data by rotating the probe about the axial center, ensuring uninterrupted circumferential measurement. The probe maintains continuous contact with the socket surface while rotating, collecting data at all points around the circumference without interruption. This continuous measurement approach ensures complete circumferential coverage and high accuracy while optimizing measurement time through efficient data collection.
Data Source
AI summary
Provided is a shape measuring device for a hose connector fitting. Two-dimensional shape detection units detect radial position data of a surface of a socket in radial direction with respect to an axial center of a hose connector fitting along a direction parallel with the axial center of the hose connector fitting completely across a circumference of the socket. The measurement data relates to the surface of the socket, including outer diameters, crimping positions, crimping claw remaining widths, roundness, and cylindricity of the socket.