Vacuum Suction Piston Control for Delicate Chip Handling
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Solution Overview
Problem
Existing vacuum nozzles lack control over contact force, which can damage delicate electronic devices like chips during adsorption due to excessive force.
Innovation Solution
A vacuum adsorption system with a cylinder, piston, and piston rod, equipped with a vacuum pressure control device that regulates vacuum pressure to ensure the contact force applied by the piston rod on the object is less than or equal to a predetermined force, using a spring mechanism and feedback control system to maintain a controlled contact force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vacuum suction nozzle is used to pick up electronic devices, then adsorption function is achieved, but contact force cannot be controlled and may damage the electronic devices
Solution Approach 1:
The piston rod is designed to move dynamically between extended and retracted positions, allowing the system to adjust contact force in real-time. The vacuum pressure control device dynamically adjusts vacuum pressure to maintain controlled contact force, transforming a static nozzle into a dynamic adaptive system that protects electronic devices while maintaining adsorption functionality.
Solution Approach 2:
The system changes the vacuum pressure parameter to control the contact force exerted by the piston rod. By adjusting vacuum pressure within the cylinder block, the system can maintain contact force at or below predetermined thresholds, preventing damage to electronic devices while ensuring reliable adsorption.
2Force
If vacuum pressure is increased to improve adsorption, then adsorption force increases, but contact force on the object may become too large and cause damage
Solution Approach 1:
The system separates the vacuum adsorption function from the contact force application function. The vacuum suction hole provides adsorption force while the piston rod provides controlled contact force. This segmentation allows independent control of adsorption strength and contact force, enabling high vacuum pressure for strong adsorption without causing damage through excessive contact force.
Solution Approach 2:
The piston rod acts as an intermediary between the vacuum system and the electronic device. It transmits controlled contact force while the vacuum pressure control device mediates the vacuum pressure to ensure the contact force remains at or below predetermined safe levels, preventing direct transmission of excessive forces to the device.
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
Prevents damage to electronic devices by ensuring the contact force exerted during adsorption is minimized or zero, effectively protecting sensitive components like high-precision chips.
Implementation Method 1
a vacuum pressure control device controlling a vacuum pressure in an inner cavity of the cylinder block
Implementation Method 2
The vacuum pressure in the inner cavity is controlled so that a contact force applied by the piston rod on an object adsorbed by the vacuum suction hole
Data Source
AI summary
A vacuum adsorption system includes a cylinder including a cylinder block, a piston, and a piston rod mounted in the cylinder block, and a vacuum pressure control device controlling a vacuum pressure in an inner cavity of the cylinder block. The piston rod has a vacuum suction hole communicating with the inner cavity. The vacuum pressure in the inner cavity is controlled so that a contact force applied by the piston rod on an object adsorbed by the vacuum suction hole of the piston rod is less than or equal to a predetermined contact force.