Workpiece Inversion Station With Synchronized Pick-and-Place Motion
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Solution Overview
Problem
Automated mass production processes face inefficiencies in inverting workpieces, as existing systems lack synchronized and efficient methods for rotating workpieces during processing, leading to potential misalignment and reduced productivity.
Innovation Solution
An automated system utilizing a transport track and a workpiece inversion station with a pick-and-place robot, where end effectors are electronically synchronized to unload, invert, and reload workpieces by 180 degrees in a continuous motion, ensuring precise and efficient inversion of workpieces in electronic synchronization with carrier movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If workpieces are inverted using conventional manual or non-synchronized methods, then flexibility in handling different workpiece orientations is improved, but productivity and processing efficiency deteriorate due to lack of synchronization with carrier movement
Solution Approach 1:
The system uses sensors to detect the position of the carrier and workpiece, and the control system adjusts the end effector's movement and rotation speed accordingly to maintain synchronization throughout the inversion process, ensuring both adaptability and high productivity
Solution Approach 2:
The end effector's motion parameters (position, speed, acceleration) are dynamically adjusted during the inversion cycle to match the carrier's movement profile, enabling smooth synchronized operation that maintains both flexibility and efficiency
2Speed
If end effectors are positioned close to carriers for quick unloading/loading, then processing speed is improved, but alignment precision deteriorates due to reduced adjustment time
Solution Approach 1:
The end effector pre-positions itself near the carrier before the carrier arrives at the inversion station, and maintains synchronization during the approach, enabling quick operation without sacrificing alignment precision through proactive positioning
Solution Approach 2:
The system replaces manual positioning with electronically controlled, sensor-guided positioning that can achieve precise alignment rapidly through automated feedback control, substituting mechanical adjustment time with intelligent control
3Productivity
If continuous uninterrupted motion is used for end effector movement, then productivity is improved, but system complexity increases due to synchronization requirements
Solution Approach 1:
The control system serves multiple functions simultaneously: it coordinates carrier movement, controls end effector positioning, manages rotation timing, and maintains synchronization throughout the cycle, reducing overall system complexity through functional integration
Solution Approach 2:
The system merges the control of linear movement and rotational inversion into a single coordinated operation, where the end effector's translation and rotation are coupled through the control system to achieve continuous motion without interruption
Data Source
AI summary
A method of inverting workpieces in a mass production process includes: advancing an end effector in electronic synchronization with advancement of a carrier to synchronize arrival of the carrier at a stop position with arrival of the end effector at an unloading position, in which the end effector is in alignment with a workpiece held by the carrier for engaging the workpiece; while the end effector is in engagement with the workpiece, retracting the end effector away from the carrier to unload the workpiece from the carrier and advancing the end effector back toward the carrier to load the workpiece back into the carrier; and rotating the end effector relative to the carrier to invert the workpiece in electronic synchronization with the retracting and advancing of the end effector for loading the workpiece back into the carrier when inverted.