Rotary Tip Tool Mounting Structure for Wheel Sanders
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Solution Overview
Problem
The existing wheel sander mounting process requires users to twist the holding member while holding the tool to prevent rotation, which complicates the mounting of the tip tool and lacks ease of use.
Innovation Solution
A tip tool mounting structure with a holding member that can switch between an attached and detached state and a fixed state through rotation, featuring a shaft portion with a ridge and a holding member with a protrusion that temporarily fixes by entering a flute portion, and automatically releases when the polishing wheel moves, enhancing stability and simplicity in mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the holding member is screwed in around the shaft portion while the user holds the tool to prevent rotation, then the tool can be securely mounted, but the mounting process becomes complex and difficult to operate
Solution Approach 1:
The holding member is designed to automatically rotate and engage with the shaft portion without requiring the user to manually hold the tool. The self-service mechanism allows the holding member to complete the mounting process autonomously by rotating along the shaft portion and engaging the protrusion with the ridge, eliminating the need for user intervention to prevent tool rotation.
Solution Approach 2:
The mounting mechanism transitions from a static screwing operation to a dynamic rotational engagement process. The holding member rotates along the shaft portion, utilizing the dynamic motion to automatically align and engage the protrusion with the ridge, making the process more intuitive and easier to operate while maintaining secure mounting.
2Ease of operation
If the holding member is designed to switch between attached and detached states through rotation, then the mounting and detachment process is simplified, but the structure becomes more complex with additional components
Solution Approach 1:
The shaft portion and holding member are merged into a unified engagement system where the ridge on the shaft and the protrusion on the holding member work together as an integrated mechanism. This merging allows the switching between attached and detached states to be achieved through a simple rotational motion without requiring separate locking mechanisms or additional complex components.
Solution Approach 2:
Instead of using a traditional screw-threaded connection that requires rotational tightening, the design inverts the approach by using a rotational engagement where the protrusion slides along the ridge and locks into place. This inverted mechanism simplifies the operation to a single rotational motion while maintaining structural integrity without adding complexity.
3Ease of operation
If the temporary fixation is automatically released by the movement of the polishing wheel, then the mounting process is more convenient, but the control mechanism becomes more complex
Solution Approach 1:
The automatic release mechanism is designed to self-activate through the natural movement of the polishing wheel. As the polishing wheel moves to the opposite distal end side, it automatically triggers the release of the temporary fixation without requiring any additional control inputs from the user. The system serves itself by utilizing the existing motion of the polishing wheel to complete the release action.
Solution Approach 2:
The temporary fixation is designed to be preliminarily established during the mounting process, and the structure is pre-configured so that the normal operational movement of the polishing wheel automatically reverses this fixation. The preliminary action of engagement is set up to be naturally reversed by the intended operational motion, eliminating the need for separate control mechanisms.
Data Source
AI summary
A tip tool mounting structure for a machining device includes a shaft portion and a holding member. The shaft portion includes a ridge extending in a longitudinal direction and projecting outward in a radial direction. The holding member includes a protrusion projecting outward in the radial direction, switches between an attached and detached state and a fixed state by the rotation, the holding member is configured to be temporarily fixed in the attached and detached state, the attached and detached state is a state in which the protrusion overlaps with the ridge in the longitudinal direction, and the fixed state is a state in which the protrusion does not overlap with the ridge in the longitudinal direction. The temporary fixation of the holding member is automatically released by a movement of a tip tool to an opposite distal end side in the longitudinal direction.