Rotating Wheel Hub Spray Fixture for Uniform Protective Coating
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Solution Overview
Problem
The existing protective paint spraying processes for motor vehicle wheel hubs often result in non-uniform coverage due to the limitations of spray nozzles, leading to increased difficulty in achieving uniform mechanical and aesthetic properties.
Innovation Solution
A specialized spraying tooling system that includes an assembly line with rotating wheel hub bases, driving mechanisms, triggering components, maintaining components, and a control component, allowing for precise rotation and uniform paint application on motor vehicle wheel hubs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If protective paint spraying is performed using a spray nozzle on an assembly line, then the corrosion resistance and aesthetic performance of wheel hubs are improved, but the spraying uniformity deteriorates due to the limitations of the spray nozzle
Solution Approach 1:
The wheel hub base is designed to rotate during the spraying process, transforming the static spraying operation into a dynamic one. This rotation allows the spray nozzle to uniformly coat all surfaces of the wheel hub, resolving the spraying uniformity issue while maintaining corrosion protection
Solution Approach 2:
The spraying process is implemented as a periodic operation where the wheel hub base rotates to different positions sequentially. The control component activates the spray nozzle at specific intervals during the rotation, ensuring uniform paint application across all surfaces while maintaining reliable corrosion resistance
2Manufacturing precision
If the wheel hub base rotates during spraying, then the spraying uniformity is improved, but the device complexity increases due to additional driving mechanisms and control components
Solution Approach 1:
The wheel hub base serves multiple functions: it supports the wheel hub, enables rotation during spraying, and positions the wheel hub for sequential coating. This multi-functionality reduces the need for separate dedicated components, thereby limiting the increase in device complexity while achieving uniform spraying
Solution Approach 2:
The driving mechanism is integrated into the wheel hub base structure itself, allowing the base to rotate autonomously during the spraying process. This self-service approach minimizes the need for external complex control systems while maintaining spraying uniformity
Data Source
AI summary
A spraying tooling of a motor vehicle wheel hub is provided. The spraying tooling includes an assembly line, multiple wheel hub bases each capable of moving on the assembly line, multiple driving mechanisms each capable of driving a wheel hub base to rotate at a preset position on the assembly line, multiple triggering components each capable of triggering a driving mechanism to operate, multiple maintaining components each capable of maintaining a preset time for a triggering component, and a control component; the wheel hub base includes a sliding seat capable of moving on the assembly line and a tray capable of rotating along with rotation of the driving mechanism, and the tray is rotatably mounted on the sliding seat; and all of the driving mechanisms and the triggering components are electrically connected to the control component.