Quick-Release Pressing Head Assembly for Fast Tester Changeover
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Solution Overview
Problem
Conventional pressing heads in electronic device testing machines are fixed with bolts, making them inconvenient for repair, maintenance, and modification, and require replacement of test socket and pressing modules for different devices under test.
Innovation Solution
A quick release assembly for a pressing head comprising an upper base, actuator, and lower base with a through hole, allowing the movable head to be driven between first and second positions for easy attachment and detachment, and an electronic device testing apparatus with quick release assemblies, fixing plates, and dampers for cushioning, along with draw latches for secure connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the pressing head is fixed on the machine by bolts to ensure stable structure and reliability, then the structural stability is improved, but the ease of detachment and modification deteriorates
Solution Approach 1:
The pressing head is divided into an upper base and a lower base that can be segmented and detached from each other. The upper base includes a through hole and the lower base includes an open slot, allowing the pressing head to be separated into modular parts for easy detachment while maintaining structural integrity when assembled.
Solution Approach 2:
The pressing head transitions from a static fixed connection to a dynamic quick-release connection. The actuator enables the pressing head to be quickly attached and detached by moving the movable head between positions that engage or disengage from the open slot, providing operational flexibility while maintaining stability during use.
2Ease of operation
If the pressing head is made modular with quick release mechanism to enable easy detachment and modification, then the ease of operation is improved, but the reliability of connection deteriorates
Solution Approach 1:
The movable head acts as an intermediary element between the upper base and lower base. It features a flange with a flat portion that fits into the open slot, serving as a mediator that ensures reliable connection when engaged and enables smooth detachment when disengaged, thus maintaining both reliability and ease of operation.
Solution Approach 2:
The traditional bolt-based mechanical fastening system is replaced with a pneumatic actuator system. The actuator uses pneumatic pressure to drive the movable head between engaged and disengaged positions, providing a more reliable and quicker connection mechanism while reducing the complexity of manual fastening operations.
3Stability of the object's composition
If conventional bolt fixation is used for the pressing head, then the connection stability is improved, but the time for maintenance and modification increases
Solution Approach 1:
The pressing head is pre-assembled as a modular unit with the upper base, lower base, and all internal components (circuits, fluid lines, dampers) already connected. This preliminary assembly allows the entire pressing head to be quickly detached and replaced as a single module, significantly reducing maintenance time compared to disassembling individual bolted components.
Solution Approach 2:
The modular pressing head design allows for easy discarding of the entire assembly during maintenance and recovery of the module for reuse after modification. The quick-release mechanism enables the pressing head to be quickly removed from the machine, serviced, and reinstalled, minimizing downtime and maximizing resource utilization.
4Adaptability or versatility
If the pressing head contains many circuits and fluid lines to ensure complete electrical contact and temperature control, then the functionality is improved, but the complexity of detachment and modification increases
Solution Approach 1:
The pressing head is segmented into an upper base and lower base, with all circuits, fluid lines, and components contained within these modular sections. This segmentation allows the complex internal systems to be enclosed within sealed modules that can be easily detached as a unit, protecting the complexity from the external interface while maintaining full functionality.
Solution Approach 2:
The modular pressing head design provides universality by allowing the same upper base and lower base assembly to accommodate different device under test configurations. The standardized quick-release interface enables the pressing head to be used across different testing scenarios without requiring internal modification, thus managing complexity while enhancing adaptability.
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
Enables quick and reliable detachment and attachment of pressing heads and fixing plates, providing a stable structure with cushioning and precise alignment, and ensuring secure connections without direct impact, facilitating efficient machine modifications and device testing.
Implementation Method 1
the actuator includes a movable head, the actuator is disposed on an upper surface of the upper base, and the movable head passes through the through hole and protrudes from a lower surface of the upper base
Implementation Method 2
the movable head is abutted against lateral edges of the open slot of the lower base so that the upper base and the lower base are tightly connected
Implementation Method 3
a damper can be arranged between each of the plurality of quick release assemblies and the lower surface of the lower fixing plate to provide a cushioning effect and avoid direct impact
Data Source
AI summary
The present invention relates to a quick release assembly for a pressing head and an electronic device testing apparatus having the same. The quick release assembly comprises an upper base, an actuator and a lower base. When the lower base is to be mounted on the upper base, the actuator drives a movable head to a first position; the movable head passes through an open slot of the lower base; then, the actuator drives the movable head to a second position so that the lower base is retained by the movable head. The open slot of the lower base is firstly fitted on the movable head of the actuator located on the upper base. At this time, the actuator is controlled to drive the movable head to the second position from the first position.