Electromagnetic Wheel Spraying Protection Device
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Solution Overview
Problem
Current methods for protecting the flange face, center hole, and bolt hole conical surfaces of a wheel during painting are inefficient, leading to paint adhesion and increased manufacturing costs due to instability and limited protection range.
Innovation Solution
A wheel spraying protection device comprising a hollow mounting rack, electric cylinder, electromagnetic chuck, soft rubber cover, high temperature resistant plastic protective plugs, and springs, which expands to fit the center hole and compresses to fit the bolt hole conical surfaces, ensuring complete protection and easy removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the flange face is protected by a tray using self-weight of the wheel, then the structure is simple, but the wheel cannot be completely fitted and may rotate or move during spraying causing paint adhesion and non-uniform film thickness
Solution Approach 1:
The patent replaces the traditional mechanical tray-based protection system with an electromagnetic chuck that uses electromagnetic fields to clamp the wheel flange face. This substitution eliminates the need for complex mechanical trays and weights, providing more reliable and stable wheel fixation during the spraying process without increasing device complexity.
2Device complexity
If a spring cone is used to protect the center hole, then the structure is simple, but the wheel cannot be stable during spraying
Solution Approach 1:
The patent merges the center hole protection function with the electromagnetic chuck system. The electromagnetic chuck not only clamps the flange face but also simultaneously secures the center hole area, combining multiple protection functions into a single integrated device that ensures wheel stability throughout the spraying process.
3Reliability
If an expansion sleeve is adopted to protect the center hole, then the fixation problem is solved, but the stroke is limited and many specifications are needed increasing manufacturing cost
Solution Approach 1:
The electromagnetic chuck is designed with universal adaptability to accommodate different wheel sizes and specifications. By using electromagnetic clamping force rather than mechanical expansion, a single device design can handle various wheel dimensions without requiring multiple specifications, thereby reducing manufacturing costs and device complexity.
4Device complexity
If plastic plugs are directly put into bolt holes to protect the conical surfaces, then the structure is simple, but the plugs cannot completely fit the surfaces causing paint adhesion and are difficult to remove
Solution Approach 1:
The patent replaces the mechanical plastic plug insertion method with electromagnetic clamping force from the electromagnetic chuck. The electromagnetic field applies uniform pressure across the bolt hole conical surfaces, ensuring complete coverage and precise protection without the fitting issues of plastic plugs. After spraying, the electromagnetic field is deactivated, allowing easy removal without deformation.
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 device provides stable and universal protection, reducing paint adhesion and manufacturing costs by ensuring a tight fit and easy removal of protective plugs, while maintaining wheel stability during spraying.
Implementation Method 1
the electromagnetic chuck is embedded into the tray... due to the suction of the electromagnetic chuck, the iron post is in tight fit with the electromagnetic chuck
Implementation Method 2
the closed space in the sleeve is reduced, the soft rubber cover is expanded by air extrusion, and the expanded soft rubber cover is in tight fit with the inner wall of a center hole of a wheel
Implementation Method 3
the lower end face of the spring is in contact with the bottom surface of a bolt hole counter bore of the wheel, and when the conical surface of the high temperature resistant plastic protective plug is fitted with the conical surface of a bolt hole, the spring is in a compressed state
Data Source
AI summary
A wheel spraying protection device is composed of a hollow mounting rack, an electric cylinder, a tray, an electromagnetic chuck, a sleeve, a piston, a soft rubber cover, a support column, an end cover, high temperature resistant plastic protective plugs, springs and iron posts. The device can play a role in protecting during a wheel spraying process, and solves the problem that a flange face, a center hole and bolt hole conical surfaces are adhered with paint. The device has the characteristics of advanced process, easiness in manufacturing, simple structure, strong function and the like.