Swing Forging Inspection Tool Laser Locus Analysis

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Solution Overview

Problem

Existing swing forging apparatuses face challenges in accurately determining the position of the swing center and inclination angle of the processing roll after completion, leading to manufacturing errors and the need for repetitive testing and component replacement.

Innovation Solution

An inspection device and method utilizing a laser beam and sensor system to precisely estimate the swing center and inclination angle of the processing roll by analyzing the locus of the laser beam's irradiation position on a laser irradiation surface, with a calculator determining these parameters based on detection signals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a test of forming the swaging part is performed using the swing forging apparatus after completion, then it is possible to determine whether the swaging part can be appropriately formed, but the rolling bearing unit used for testing is discarded

Engineering Contradiction:

Improvedetermination accuracy of swing center position and inclination angleVSAvoiddiscarding of rolling bearing unit

Core Design Contradiction:

ReliabilityVSLoss of substance

Solution Approach 1:

The patent creates a virtual model (copy) of the swing forging apparatus that simulates the actual apparatus's behavior. By measuring the locus of the swing center in the virtual model and comparing it with the designed locus, the system can determine whether the actual apparatus will form the swaging part appropriately without performing physical tests that would require discarding the rolling bearing unit. This copying approach allows virtual testing and evaluation.

Inventive Principle:

Principle #26Copying

Solution Approach 2:

The patent replaces the mechanical testing process with a computational simulation system. Instead of physically forming the swaging part to test the apparatus, the system uses a calculator to compute the locus of the swing center based on measured positions, substitutes the mechanical test with mathematical analysis, and determines apparatus performance through information processing rather than physical experimentation.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Manufacturing precision

If the position of the swing center and inclination angle of the processing roll are not accurately determined, then manufacturing errors occur in the swaging part, but repetitive testing and component replacement increase time and resource consumption

Engineering Contradiction:

Improveposition accuracy of swing center and inclination angleVSAvoidtime for repetitive testing and component replacement

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent performs preliminary measurement and computation of the swing center locus before actual swaging part formation. By measuring the positions of the swing center at multiple points, computing the locus in advance, and comparing it with the designed locus, the system determines whether the apparatus is properly configured before manufacturing, avoiding the need for repetitive testing and component replacement during production.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements a feedback mechanism where the computed locus of the swing center is compared with the designed locus to determine whether the actual swing forging apparatus will form the swaging part appropriately. This feedback information is used to adjust or replace components before actual production, ensuring manufacturing precision while minimizing repetitive testing and time loss.

Inventive Principle:

Principle #23Feedback

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables precise estimation of the swing center and inclination angle, allowing for accurate management and correction of the processing roll's position and angle, reducing manufacturing errors and discarding of rolling bearing units during testing.

Implementation Method 1

a laser generator configured to emit a laser beam onto a central axis of the inspection tool

Methodology Applied

Scientific EffectLaser: Laser

Implementation Method 2

a sensor configured to detect an irradiation position of the laser beam to the laser irradiation surface

Methodology Applied

Scientific EffectPhotoelectric detection: Photoelectric Effect

Data Source

PatentUS11077485B2Rotary forge device testing device, testing tool, testing method, bearing unit manufacturing device, bearing unit manufacturing method, and vehicle manufacturing method

Publication Date: 2021.08.03 NSK LTD

AI summary

The inspection device of the swing forging apparatus includes an inspection tool and a laser irradiation surface. When inspecting the swing forging apparatus, the inspection tool is supported to the head to which the processing roll is not supported, with a substantially same condition as the processing roll, and the inspection tool has a function of emitting a laser beam onto a central axis of the inspection tool. When inspecting the swing forging apparatus, the laser irradiation surface is arranged so that a relative position of the laser irradiation surface to the head in an axial direction of the head can be changed and the laser beam can be irradiated to the laser irradiation surface.