Index Table Radial Position Adjustment for Component Transfer
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Solution Overview
Problem
The existing electronic component transfer systems face challenges in reliably filling electronic components from a load track into pockets on an index table due to potential radial displacement caused by center deflection or thermal expansion of the index table.
Innovation Solution
The system incorporates a discoid index table with circumferentially arranged pockets, a load track with storage sections, a position detection sensor, a load track drive unit, and a control unit. The control unit adjusts the radial position of the pockets relative to the load track based on signals from the position detection sensor, ensuring accurate alignment and filling of electronic components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the index table is used to store and transfer electronic components, then the components can be systematically organized and tested, but radial displacement of pockets occurs due to center deflection or thermal expansion, causing misalignment with the load track
Solution Approach 1:
The system performs preliminary detection of pocket radial positions using the position detection sensor before the actual component filling operation. The control unit calculates displacement amounts based on detected positions at multiple steps, and pre-adjusts the load track position to compensate for expected displacement, ensuring accurate alignment during the filling process
Solution Approach 2:
The position detection sensor continuously monitors the radial position of pockets at different steps, providing feedback signals to the control unit. The control unit uses this feedback to calculate displacement amounts and dynamically adjusts the load track position, creating a closed-loop control system that maintains precision despite thermal expansion or center deflection
2Device complexity
If the load track is fixed relative to the index table, then the structure is simple and stable, but any displacement of the index table center causes misalignment between pockets and load track storage sections
Solution Approach 1:
The load track is transformed from a fixed structure to a dynamically adjustable one. The load track drive unit enables the load track to move radially in response to detected pocket positions, allowing the system to adapt to changes in index table center position or thermal expansion while maintaining alignment between pockets and storage sections
Solution Approach 2:
The system changes the radial position parameter of the load track based on detected pocket positions. By calculating displacement amounts from position detection signals and adjusting the load track position accordingly, the system maintains precise alignment despite variations in index table geometry or thermal conditions
3Productivity
If no position detection and adjustment mechanism is used, then the device complexity is low, but the filling ratio decreases due to misalignment between load track storage sections and index table pockets
Solution Approach 1:
The system replaces complex mechanical alignment mechanisms with an electronic control approach. Instead of using mechanical adjustments or flexible structures to maintain alignment, the system uses position detection sensors to detect pocket positions and electronically controls the load track drive unit to adjust positions, achieving precise alignment through software-based compensation
Data Source
AI summary
A position detection sensor is provided on an index table, and a load track drive unit is provided on a load track. A control unit controls the load track drive unit to radially move the load track to adjust a radial position of the pocket with respect to the load track, based on a signal from the position detection sensor. The object is to smoothly fill electronic components stored in a load track into pockets in an index table.