Wooden Frame Machining Automation with Rotating Transfer Assembly
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Solution Overview
Problem
Existing machines for machining wooden frames are labor-intensive due to manual loading and unloading of frames, which is challenging for operators given the size and weight of the frames.
Innovation Solution
A machine with a U-shaped base, longitudinal guide members, cross members with clamps, a bridge crane with a machining head, and movable supporting bars that allow for automatic transfer and handling of frames between horizontal and vertical positions, utilizing a transfer assembly with belt conveyors and actuating devices for efficient frame positioning and processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual loading and unloading of frames is used, then device complexity is reduced, but operator effort and difficulty of operation increase significantly
Solution Approach 1:
The frame handling system performs automatic loading and unloading operations without requiring operator intervention. The frame conveyor automatically transports frames between the machining position and storage/feeding areas, while the clamp mechanism automatically secures and releases frames during machining operations. This self-service capability eliminates manual handling of heavy frames, directly improving ease of operation.
Solution Approach 2:
A frame conveyor system acts as an intermediary device between the machining area and frame storage/feeding areas. This intermediary automatically transports frames to and from the machining position, eliminating the need for operators to manually load and unload heavy frames. The conveyor serves as a mediator that handles the physically demanding tasks of frame transport.
2Productivity
If automatic frame handling is implemented, then productivity increases, but device complexity and initial cost increase
Solution Approach 1:
The frame conveyor enables continuous operation by automatically transporting frames to the machining position as soon as one frame completes processing. This eliminates idle time between machining operations and maintains continuous productive action. The system can process multiple frames in sequence without interruption, significantly increasing overall productivity compared to manual loading/unloading methods.
Solution Approach 2:
The automatic clamp mechanism and frame conveyor work together to perform all frame handling operations without operator intervention. The system feeds frames automatically, positions them for machining, and removes them after processing, allowing the machining head to operate continuously at maximum speed without waiting for manual frame changes.
3Ease of operation
If frames are positioned on a horizontal surface at floor level, then ease of loading improves, but machining accessibility and precision deteriorate
Solution Approach 1:
The frame positioning system uses a movable clamp mechanism that can dynamically adjust the frame position and securing force. The frame is initially placed on a horizontal surface for ease of loading, then the clamp mechanism automatically engages and positions the frame precisely in the machining area. This dynamic positioning system maintains both ease of loading and machining precision by combining simple initial placement with automated precise positioning.
Solution Approach 2:
The clamp mechanism serves as an intermediary between the frame and the machining system. It allows the frame to be easily loaded onto a horizontal surface while simultaneously providing precise positioning and secure holding during machining operations. The clamp acts as a mediator that reconciles the conflicting requirements of easy loading and precise machining positioning.
Data Source
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AI summary
A machine for machining wooden frames (2) or similar has a supporting device (19) defining a first supporting surface (P2) for at least one frame (2); a machining head (14) for machining the frame (2); and a transfer assembly (25) for transferring the frame (2) to and/or from the first supporting surface (P2); the transfer assembly (25) having a second supporting surface (P3), which rotates between two work positions, in which the first and second supporting surface (P2, P3) are coplanar with each other, and tilted with respect to each other respectively.