Peening Device Vibration Control for Thin Workpieces
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Solution Overview
Problem
Thin workpieces are difficult to hold perpendicular during peening due to vibration and shape changes, making it challenging to maintain stable peening conditions and predict changes in the workpiece shape, which affects the performance of peening devices.
Innovation Solution
A peening device equipped with impact means, inclination adjustment means, vibration detection, and control systems that adjust the device's inclination to maintain a predetermined vibration state or angle, ensuring consistent peening performance despite shape changes in the workpiece.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a holding mechanism such as a robot is used to hold the peening device main body perpendicular to the surface to be worked, then the positioning precision is improved, but the reliability deteriorates when the workpiece is thin and vibrates during peening
Solution Approach 1:
The peening device main body performs self-positioning by utilizing the vibration state detected during peening to automatically adjust its inclination angle, eliminating the need for external holding mechanisms to maintain precision during workpiece vibration
Solution Approach 2:
The vibration detection means detects the vibration state of the device main body, and this detection result is fed back to the inclination adjustment means to automatically adjust the inclination angle, forming a closed-loop control system that maintains positioning precision despite workpiece vibration
2Manufacturing precision
If the peening device main body and surface to be worked are positioned perpendicular to each other in advance, then the manufacturing precision is improved, but the adaptability deteriorates when the shape of the surface changes during peening
Solution Approach 1:
The inclination of the device main body is made dynamically adjustable during peening operations, allowing the system to adapt to real-time changes in workpiece shape and maintain optimal peening conditions throughout the process
Solution Approach 2:
The vibration detection means continuously monitors the vibration state during peening, and this feedback is used by the inclination adjustment means to automatically adjust the device main body's inclination, enabling real-time adaptation to shape changes
3Ease of operation
If manual operation is used to perform peening, then the ease of operation is improved, but the manufacturing precision deteriorates due to vibration and variation in impact angle
Solution Approach 1:
The manual mechanical operation is replaced with an automated control system where vibration detection means and control means work together to automatically adjust the device inclination, eliminating human variability while maintaining operational simplicity
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
The system allows for excellent peening by conforming to the changing shape of the workpiece, maintaining optimal vibration and angle conditions, thereby improving peening quality and stability.
Implementation Method 1
pins which are impact means are moved back and forth by an ultrasonic vibration to impact on a surface to be worked of a workpiece
Implementation Method 2
the workpiece itself is influenced by peening and is vibrated
Implementation Method 3
pins which are impact means are moved back and forth by an ultrasonic vibration
Data Source
AI summary
A peening device is provided with: peening impact pins that impact on a surface to be worked; a device main body that uses vibration to move the peening impact pins back and forth with respect to the surface to be worked; servo motors (22x, 22y) that adjust the inclination of the device main body with respect to the surface to be worked; laser displacement gauges (20A, 20B, 20C, 20D) that detect the device angle; and a vibration sensor (18) that detects the vibration state of the device main body. Furthermore, a control device (40) for the peening device controls the servo motors (22x, 22y) such that the vibration state detected by the vibration sensor (18) is a predetermined vibration state. Thus, the peening device carries out excellent peening by conforming to the surface to be worked, the shape of which changes from moment to moment because of the peening.