Transfer Device Rocking Arm Positioning Mechanism
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Solution Overview
Problem
Conventional transfer devices face challenges in accurately positioning carriages due to floor surface flatness issues and require dedicated carriages, leading to increased costs and potential assembly errors, which can result in positioning inaccuracies and reduced production efficiency.
Innovation Solution
A transfer device with a positioning mechanism using left and right rocking arms that lift the carriage to a predetermined height, independent of floor flatness, and a correction mechanism to address assembly errors and distortion, allowing for precise positioning and efficient object transfer between the carriage and transfer area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the carriage is positioned with respect to the processing device while the carriage wheels are in contact with the floor surface, then the positioning can be performed using simple floor contact, but the positioning accuracy deteriorates due to floor surface flatness issues
Solution Approach 1:
The invention transitions the positioning operation from the horizontal floor plane to the vertical dimension by lifting the carriage onto the processing device. The processing device includes a positioning portion that engages with the carriage when the carriage is lifted, establishing position through vertical engagement rather than horizontal floor contact. This dimensional change eliminates dependence on floor flatness for positioning accuracy.
2Manufacturing precision
If dedicated carriages with elevation motors and transfer mechanisms are provided for each object, then the positioning accuracy and transfer reliability are improved, but the device complexity and cost increase
Solution Approach 1:
The invention makes the processing device itself perform the positioning function by providing a positioning portion on the processing device that engages with the carriage. This eliminates the need for dedicated elevation motors and transfer mechanisms on each carriage, as the processing device's positioning structure serves both positioning and support functions for multiple different carriages and object types.
3Ease of operation
If conventional positioning techniques are used, then the carriage can be positioned with respect to the processing device, but assembly errors and distortion in the carriage may cause positioning malfunctions and reduce productivity
Solution Approach 1:
The invention performs preliminary positioning action by lifting the carriage onto the processing device before the actual transfer operation. The positioning portion engages with the carriage in advance, establishing accurate position and correcting any assembly errors or distortion. This preliminary positioning ensures that subsequent transfer operations can proceed without malfunction, maintaining high productivity.
Data Source
AI summary
A transfer device includes a carrying-in area (A1) into which a carriage is carried. A positioning mechanism includes left and right rocking arms (60) that engage with and disengage from the carriage to lift the carriage while holding it from both left and right sides and position it at a predetermined height position in the carrying-in area. A transfer mechanism (110) transfers an object from between the positioned carriage and a transfer area. With this construction, the rocking arms lift the carriage from both the left and right sides and from the lower side and position the carriage away from a floor surface. The positioning of the carriage is performed during a rocking operation of the rocking arms, whereby the carriage can be easily and highly accurately positioned without being affected by the flatness of the floor surface even if the carriage has dimensional assembly errors.