Adaptive Casing Support for Stable Machining of Aerospace Irregular Parts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The machining of aerospace irregular parts faces challenges such as complex structural characteristics, ineffective traditional positioning and clamping methods, material deformation during processing, and the inability to achieve flexible production due to diversification of parts.
Innovation Solution
A machining and positioning system is developed, incorporating a self-positioning device, compression device, and support device with piezoelectric plates to collect and adjust support forces based on cutting radial forces, ensuring stable clamping and positioning of irregular parts. Additionally, a discrete intelligent production line is implemented, featuring a circular conveyor, machine vision recognition, and a centralized tool changing system to facilitate flexible and efficient production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional positioning and clamping methods are used, then the structure is simple, but they are not effective for complex irregular parts
Solution Approach 1:
The positioning system is divided into multiple independent positioning units, each responsible for a specific region of the irregular part. These modular units can be independently adjusted and configured based on the specific geometry of different parts, enabling effective positioning without requiring a completely complex integrated system.
Solution Approach 2:
The positioning and clamping system incorporates adjustable and adaptive mechanisms that can dynamically adapt to different part geometries. The system can modify its configuration based on the specific irregular shape being processed, maintaining positioning effectiveness across various part types without requiring excessive complexity.
2Reliability
If fixed support force is applied, then the support structure is simple, but it cannot adapt to different cutting radial forces
Solution Approach 1:
The support device incorporates sensors that detect cutting radial forces in real-time and provide feedback to the control system. Based on this feedback, the support force is automatically adjusted to match the actual cutting conditions, ensuring stable support without requiring an overly complex manual adjustment system.
Solution Approach 2:
The support system automatically adjusts its own support force based on detected cutting conditions, eliminating the need for manual intervention. The system self-regulates the support force to match the cutting radial force, maintaining stability while keeping the control mechanism relatively simple.
3Reliability
If excessive clamping force is applied, then the clamping is secure, but it causes deformation of aluminum alloy parts
Solution Approach 1:
The clamping system incorporates sensors that monitor part deformation and clamping force in real-time. When deformation is detected, the system automatically reduces the clamping force to prevent further deformation, ensuring both secure clamping and dimensional accuracy of the aluminum alloy part.
Solution Approach 2:
The clamping force parameter is dynamically adjusted based on part geometry, material properties, and machining conditions. The system changes clamping force levels appropriately - applying higher force when needed for security and lower force when the part is susceptible to deformation, maintaining both clamping effectiveness and part accuracy.
4Manufacturing precision
If complex repeated positioning is performed at multiple workstations, then positioning accuracy can be maintained, but production efficiency decreases
Solution Approach 1:
The positioning system is designed with universal features that can be consistently applied across multiple workstations and different part types. Once positioned at the first workstation, the part maintains its position reference through subsequent workstations without requiring complex repeated positioning operations, thereby maintaining accuracy while improving production efficiency.
Solution Approach 2:
The positioning system establishes a reference frame and preliminary positioning at the first workstation that serves as the basis for all subsequent operations. This preliminary positioning action eliminates the need for complex repeated positioning at each workstation, as the initial positioning reference can be maintained throughout the multi-workstation process.
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 reduces complex repetitive positioning and improves positioning stability, enabling efficient machining of aerospace irregular parts. The discrete intelligent production line achieves flexible and precise production of diverse components, enhancing production efficiency and adaptability.
Implementation Method 1
using piezoelectric plates to collect support force and feedback and adjust the thrust of the support block
Data Source
AI summary
A machining and positioning system for aerospace irregular parts and a discrete intelligent production line therefor are provided, which relates to the field of aerospace irregular part machining. In view of the problem that complex repeated positioning and poor positioning stability is required during the transportation and processing of aerospace irregular parts, a self-positioning device, a clamping device, and a support device are used to form a follow-up clamping and positioning system for the irregular part casing, reducing complex repeated positioning. The support block of the support device can fit to the inner wall of the casing, collect the support force using piezoelectric plates, and feedback and adjust the thrust of the support block based on the magnitude of the cutting radial force, maintaining stable support of the support block for the casing and meeting production needs.