Router Table Segmentation for Tool-Free Accessory Locking
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Solution Overview
Problem
Existing routers face challenges in securely and quickly attaching and detaching accessories, such as guide sleeves, while minimizing play and vibration, which is crucial for precise routing operations.
Innovation Solution
The router design incorporates a centering mount for easy insertion and locking of the mounting flange, along with actuating means for tool-free locking and unlocking, ensuring the accessory is held immovably during use and easily removable when needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a guide sleeve is releasably attached to the router table with an attachment flange, then the router can be moved along a routing template, but the attachment and detachment process is time-consuming and requires tools
Solution Approach 1:
The router table is divided into an upper part and a lower part that can be separated. The accessory is attached to the lower part, which can be quickly detached from the upper part without tools, enabling rapid accessory changes while maintaining secure attachment during use
Solution Approach 2:
The locking mechanism transitions from a static locked state to a dynamic unlocked state through a simple lever action. The lever can be actuated from the side to quickly unlock and remove the lower part with the accessory, or to swing it out for accessory changes, making the process fast and tool-free
2Reliability
If the accessory is securely attached to the router table, then play and vibration are minimized, but the attachment process becomes complex and time-consuming
Solution Approach 1:
By separating the router table into upper and lower parts, the system achieves secure attachment during routing operations while simplifying the attachment/detachment process. The lower part with the accessory can be quickly removed or swung out without affecting the upper part, reducing overall system complexity
Solution Approach 2:
The lower part is designed to be self-contained with the accessory pre-attached. When detached from the upper part, it can be swung out to the side, allowing the accessory to be easily accessed and changed without requiring complex tool-based mechanisms, thus reducing device complexity while maintaining reliability
3Productivity
If the lower part of the router table is made detachable for quick accessory changes, then attachment speed is improved, but stability and vibration control may be compromised
Solution Approach 1:
The locking mechanism provides a dynamic solution where the lower part can be quickly unlocked and removed for fast accessory changes, or swung out to the side for stable accessory replacement. During routing operations, the locked state provides firm stability, while the lever mechanism enables rapid transitions between states without compromising overall stability
Data Source
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AI summary
An overhead milling machine has bench upper (3) and lower (4) sections sandwiching a fixture flange (23) for a copy sleeve accessory. The lower section can be removed from the upper section. The upper section has a centering socket (25) for presentation of the flange from below. The gap between the upper and lower sections has locks accessible from the outside when the two parts are closed up and requiring no use of tools.