Cleaning Method With Oscillating Nozzle For Constant Impact Angle
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Solution Overview
Problem
Existing cleaning methods using a rotating table and fluid ejection from a nozzle fail to effectively clean all corners of a workpiece due to variable fluid impingement angles, resulting in insufficient cleaning.
Innovation Solution
The method involves rotating or swinging a workpiece about a table axis while ejecting cleaning fluid from a nozzle that oscillates about a parallel axis, maintaining a constant impact angle between the fluid jet and the workpiece surface, ensuring comprehensive cleaning by adjusting the nozzle's trajectory and angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a rotating table with fixed nozzle is used for cleaning, then the cleaning mechanism is simple, but the cleaning effectiveness is insufficient due to variable fluid impingement angles
Solution Approach 1:
The nozzle is made dynamically adjustable to swing about an axis parallel to the table rotation axis, allowing the ejection axis to maintain a constant impact angle with the workpiece surface throughout the rotation cycle. This dynamic adjustment resolves the contradiction by enabling consistent cleaning effectiveness while keeping the overall mechanism relatively simple.
Solution Approach 2:
The system changes the geometric parameters of the nozzle positioning, specifically the swing angle and impact angle, to optimize cleaning performance. By controlling the nozzle to swing and maintain a constant impact angle (preferably between 60-90 degrees), the system achieves superior cleaning effectiveness without excessive complexity.
2Manufacturing precision
If the nozzle maintains a fixed position, then the device complexity is low, but the cleaning coverage is insufficient for complex workpiece shapes
Solution Approach 1:
The nozzle is equipped with a swinging mechanism that allows it to dynamically adjust its position while maintaining a constant impact angle. This dynamic positioning enables the cleaning jet to effectively reach all corners and surfaces of complex workpiece shapes, significantly improving cleaning coverage without requiring overly complex multi-axis positioning systems.
3Manufacturing precision
If the impact angle varies during rotation, then the mechanism is simpler, but the cleaning quality deteriorates
Solution Approach 1:
The nozzle swing mechanism is designed to dynamically compensate for the table rotation, maintaining a constant impact angle between the ejection axis and the workpiece surface throughout the rotation cycle. This ensures consistent high-quality cleaning across all surfaces while using a relatively simple swing mechanism rather than complex real-time angle adjustment systems.
Solution Approach 2:
The system optimizes the impact angle parameter by controlling the nozzle swing to maintain angles preferably between 60-90 degrees, with 80-90 degrees being most preferable. This parameter control ensures high cleaning quality while keeping the swing mechanism design straightforward.
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
This approach ensures thorough cleaning of the workpiece by maintaining a consistent impact angle, ensuring that all surfaces are adequately cleaned, even those with complex shapes.
Implementation Method 1
ejecting cleaning fluid from a nozzle along an ejection axis; and swinging the nozzle about a nozzle rotation axis parallel to the table rotation axis to keep a constant impact angle formed between the ejection axis and the first cleaning surface for cleaning the workpiece
Data Source
AI summary
A cleaning method of sufficiently cleaning a workpiece is provided. The cleaning method, including: rotating or swinging a workpiece having a first cleaning surface about a table rotation axis; ejecting cleaning fluid from a nozzle along an ejection axis; and swinging the nozzle about a nozzle rotation axis parallel to the table rotation axis to keep a constant impact angle formed between the ejection axis and the first cleaning surface for cleaning the workpiece.