Wheel Spraying Tooling for Uniform Hard Coating
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Solution Overview
Problem
The existing wheel manufacturing technologies lack effective tooling for uniformly applying hard coatings to the inner rim and spoke back cavity of wheels, leading to issues of uneven spraying and poor roundness due to lack of precise positioning and radial/axial impact during the coating process.
Innovation Solution
A tooling system comprising a wheel hub positioning and rotating system, a wheel assisting system, and a hard coating spraying system, which includes a servo motor-driven shaft for axial and radial positioning, rollers for impact elimination, and adjustable nozzles for precise coating application on wheels of varying sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional spraying method is used without specialized tooling, then the process is simple, but the coating uniformity and roundness are poor
Solution Approach 1:
The device is divided into three independent functional modules: wheel hub positioning and rotating system, wheel assisting system, and hard coating spraying system. Each module performs a specific function and can be independently adjusted, allowing complex coating operations to be broken down into manageable segments that achieve uniform coating while maintaining operational simplicity
Solution Approach 2:
The wheel hub positioning system incorporates multiple positioning mechanisms (axial positioning, radial positioning, clamping) and rotating capabilities into a single integrated fixture. The wheel assisting system provides both support and rotation assistance functions. This multi-functional design achieves precise coating uniformity without requiring multiple separate tooling devices
2Productivity
If high-speed spraying is used to improve productivity, then the spraying speed increases, but wheel deformation and uneven spraying occur due to high-impact collision
Solution Approach 1:
The wheel assisting system is designed to counteract the harmful effects of high-speed spraying before they can cause damage. The supporting rollers and rotation assistance mechanism preemptively stabilize the wheel against the high-impact collision from hard coating particles, preventing deformation and uneven spraying while maintaining high productivity
Solution Approach 2:
The wheel assisting system acts as an intermediary between the high-speed spraying process and the wheel. It mediates the interaction by providing support and controlled rotation, allowing high-speed spraying to proceed without directly transmitting harmful impacts to the wheel, thus maintaining both productivity and coating precision
3Adaptability or versatility
If the nozzle position is fixed, then the device structure is simple, but it cannot adapt to wheels of different sizes
Solution Approach 1:
The nozzle position is made dynamically adjustable rather than fixed. The hard coating spraying system incorporates movable nozzle components that can be repositioned along the wheel perimeter and adjusted in distance from the wheel surface. This dynamic positioning capability allows adaptation to wheels of different sizes while maintaining a relatively simple overall device structure
Data Source
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AI summary
The present disclosure is to provide a tooling for wheel spraying reinforcement, which can uniformly apply a hard coating on the inner rim and the spoke back cavity of a wheel, and can effectively solve the technical problems of uneven spraying and poor roundness. The high-precision spraying of the hard coating of the wheel is realized, and the device has novel structure, advanced technology and high universality.