Automatic Pallet Exchange Mechanism for Die-Bonding
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Solution Overview
Problem
Existing die-bonding devices face limitations in pallet exchange speed and device compactness due to linearly moving mechanisms, which restrict the exchange time and increase costs by requiring additional space.
Innovation Solution
An automatic pallet exchange device with a pallet magazine, horizontally extending protrusions, and a mechanism for simultaneous horizontal movement and rotation of the pallet fixing table, allowing for efficient pallet exchange by engaging protrusions with depression parts to fix the pallet at multiple positions, reducing the linear movement distance and simplifying the device structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a linearly moving arm mechanism is used for pallet exchange, then the pallet can be moved horizontally, but the exchange time is limited and the device becomes enlarged and costly
Solution Approach 1:
The patent combines the horizontal movement function and rotation function into a single integrated mechanism. The pallet fixing table simultaneously performs horizontal movement and rotation operations, eliminating the need for separate linearly moving arm mechanisms and reducing overall device complexity while improving exchange speed
Solution Approach 2:
The pallet fixing table is designed to perform multiple functions: it horizontally moves the pallet, rotates the pallet, and fixes the pallet in position using engagement protrusions. This multi-functional design replaces the dedicated linearly moving mechanism, reducing device complexity while maintaining high exchange speed
2Productivity
If a linearly moving mechanism is provided for pallet exchange, then the pallet can be exchanged, but the device is enlarged and costs increase
Solution Approach 1:
The patent merges the movement and rotation operations into a single compact mechanism on the pallet fixing table. This integration eliminates the need for additional space required by separate linearly moving mechanisms, maintaining high exchange efficiency while reducing the overall device footprint and costs
3Measurement precision
If the pallet is fixed at multiple positions using protrusions and depression parts, then positioning accuracy is improved, but the pallet structure becomes more complex
Solution Approach 1:
The pallet fixing mechanism is segmented into multiple discrete protrusions and corresponding depression parts. Each protrusion-depression pair provides independent positioning at specific locations, achieving high positioning accuracy through distributed fixed points while keeping each individual element simple in structure
Data Source
AI summary
An automatic pallet exchange device includes: a pallet magazine 1 that accommodates a plurality of pallets 3 respectively having a plurality of horizontally extending protrusions 16 so as to be taken in and out in horizontal directions; a pallet fixing part 23 that allows the plurality of protrusions 16 to be engaged with a plurality of depression parts 17 to horizontally fix the pallet 3 and a pallet fixing table 20 on which the pallet fixing part 23 is arranged. The pallet 3 horizontally fixed by the pallet fixing part 23 is horizontally turned and horizontally moved to exchange the pallets 3 between the pallet fixing table 20 and the pallet magazine 1.