Pneumatic Telescoping Column for Test Head Positioning
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Solution Overview
Problem
Existing test head positioner systems for automatic integrated circuit testing equipment require improvements in weight, efficiency, simplicity, and cost, particularly in vertical support systems.
Innovation Solution
A pneumatically operated load positioning system utilizing a telescoping column coupled with a pneumatic piston and guiding members, which allows for precise translation and locking of the test head along a vertical axis, enabling weightless operation and manual positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If motorized systems are used for vertical support, then positioning precision is improved, but device complexity and weight increase
Solution Approach 1:
The patent applies pneumatic principles by using a pneumatic piston and air pressure to achieve precise vertical positioning of the test head. The pneumatic system replaces complex motorized mechanisms with a simpler air-pressure-based positioning system that maintains precision while reducing overall system complexity and weight.
Solution Approach 2:
The invention substitutes traditional motorized mechanical systems with a pneumatic-mechanical hybrid system. The telescoping column provides structural support while the pneumatic piston delivers precise positioning, replacing what would traditionally require motorized actuators and complex mechanical transmission systems.
2Extent of automation
If motorized systems are used for vertical support, then automated control is improved, but weight increases
Solution Approach 1:
The pneumatic piston system provides automated vertical support with significantly reduced weight compared to motorized systems. Air pressure actuation eliminates the need for heavy motors, gear trains, and power transmission components while maintaining automated positioning capability through pressure control.
Solution Approach 2:
The invention extracts and removes the heavy motorized components from the vertical support system, retaining only the essential pneumatic actuation mechanism. This extraction of unnecessary heavy elements achieves weight reduction while preserving automated control functionality.
3Measurement precision
If complex motorized systems are used, then positioning control is improved, but cost increases
Solution Approach 1:
The pneumatic system offers a cost-effective alternative to expensive motorized positioning systems. Pneumatic components are generally simpler to manufacture, require less precision machining, and have fewer moving parts, thereby reducing manufacturing costs while maintaining adequate positioning control for the application.
Solution Approach 2:
The invention employs simpler, more economical pneumatic components rather than expensive motorized systems. The telescoping column and pneumatic piston represent a cost-effective solution that achieves the required functionality without the high manufacturing costs associated with precision motorized assemblies.
4Ease of operation
If telescoping column with guiding members is used, then compliance for manual positioning is improved, but device complexity increases
Solution Approach 1:
The telescoping column employs a nested structure where inner tubes slide within outer tubes, providing guided manual positioning compliance. This nesting arrangement achieves the desired compliance and guidance functionality with a compact, space-efficient design that minimizes overall structural complexity.
Solution Approach 2:
The column is segmented into multiple telescoping sections with guiding members at appropriate intervals. This segmentation provides guidance and compliance where needed while allowing the structure to remain relatively simple in non-critical areas, achieving a balance between operational ease and structural simplicity.
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 system provides a lightweight, cost-effective, and efficient means to position the test head, reducing the complexity of motorized systems while maintaining precise control and compliance, thereby enhancing the testing process.
Implementation Method 1
a pneumatically operated load positioning system utilizing a telescoping column coupled with a pneumatic piston
Implementation Method 2
At least one guiding member is mounted between the outer column and the telescoping column, wherein the guiding member is configured to guide the telescoping column as the telescoping column translates along the axis of translation
Data Source
AI summary
A manipulator for translating a load along an axis of translation is provided. The manipulator comprises an outer column and a telescoping column positioned adjacent the outer column. The telescoping column is attached to the load and configured to translate the load along the axis of translation. At least one guiding member is mounted between the outer column and the telescoping column, wherein the guiding member is configured to guide the telescoping column as the telescoping column translates along the axis of translation.