Leak Test Device Uniform Pressure Polishing Head
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Solution Overview
Problem
Existing leak test devices for polishing heads suffer from non-uniform force application during testing, leading to potential damage and inaccurate results, and require manual alignment and detachment, increasing operator time and effort.
Innovation Solution
A leak test device with a movable device that applies uniform pressure to the upper cover, allowing for consistent force distribution on the polishing head, eliminating the need for manual screw alignment and detachment, and utilizing a pneumatic cylinder for controlled pressure application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual operation is used to fix the polishing head in the leak test device, then the polishing head can be positioned, but the force application becomes non-uniform and difficult to control, leading to potential damage and misjudgment
Solution Approach 1:
The patent replaces manual mechanical positioning with an automatic positioning mechanism that uses a positioning groove and positioning block to precisely locate the polishing head. The pressing device with pneumatic cylinder automatically applies uniform pressure through a pressing plate, eliminating the non-uniform force application inherent in manual operations.
Solution Approach 2:
The patent changes the pressure application parameter from variable (manual) to controlled and uniform (automatic). The pneumatic cylinder provides consistent pressing force, and the positioning groove ensures the polishing head is located at the correct position, transforming the uncontrolled manual process into a parameter-controlled automatic process.
2Reliability
If manual fixing and detachment of the polishing head is performed each time, then the leak test can be conducted, but the operator time cost increases significantly
Solution Approach 1:
The patent enables the polishing head to be automatically positioned using the positioning groove and positioning block mechanism. The system serves itself by automatically locating and securing the polishing head without requiring operator intervention for positioning, reducing repetitive manual operations while maintaining test reliability.
Solution Approach 2:
The positioning groove and positioning block are pre-configured in the device structure to automatically guide and locate the polishing head when placed. This preliminary positioning structure eliminates the need for manual alignment and positioning operations during each test cycle.
3Device complexity
If non-uniform force is applied to the polishing head, then the testing process is simpler, but the leak test results become inaccurate and the polishing head may be damaged
Solution Approach 1:
The patent replaces the simple but inaccurate manual pressing mechanism with an automated pressing device that includes a pneumatic cylinder and pressing plate. This substitution maintains the simplicity of operation while dramatically improving measurement precision by ensuring uniform force distribution across the polishing head surface.
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 solution ensures accurate and consistent leak test results while reducing the risk of damage to the polishing head and significantly decreasing operator time and effort by enabling precise and uniform pressure application.
Implementation Method 1
a movable device, the movable device being movable on a surface parallel to the test platform, movable in a direction perpendicular to the test platform, and also adapted to apply pressure on the upper cover so that the upper cover seals the chambers
Data Source
AI summary
The present disclosure provides a leak test device, including: a test platform, the test platform being configured to carry and place a polishing head to be tested for leak, the polishing head being divided into one or more independent partitions, each of the partitions having a chamber correspondingly, and each chamber having vents correspondingly; an upper cover for sealing the chambers, the upper cover being located on the side of the chambers away from the test platform; and a movable device, the movable device being movable on a surface parallel to the test platform, movable in a direction perpendicular to the test platform, and also adapted to apply pressure on the upper cover so that the upper cover seals the chambers.