Linearly Movable Cutting Tip for Gear Edge Trimming
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Solution Overview
Problem
Conventional cutting tools with a plate-shaped cutting tip are difficult to use due to their design, which hinders efficient cutting of gear teeth edges.
Innovation Solution
A cutting tip with a blade that advances and retracts between gear teeth, supported by a linearly movable shaft with an angular base and obliquely oriented skirt faces, allowing for effective cutting of side and bottom edges by moving in the direction of tooth thickness and width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a plate-shaped cutting tip is used, then the structure is simple, but the ease of operation deteriorates
Solution Approach 1:
The cutting tip is changed from a static plate-shaped structure to a dynamic structure with a shaft portion that can advance and retract linearly. The shaft portion is supported to be movable in the linear direction, allowing the cutting blade to dynamically adjust its position between adjacent teeth during operation, significantly improving ease of operation while maintaining reasonable structural complexity
2Productivity
If the cutting blade is positioned obliquely, then the cutting effectiveness improves, but the alignment precision deteriorates
Solution Approach 1:
The shaft portion is configured to be movable in the linear direction, allowing dynamic adjustment of the cutting blade's position and orientation. This dynamic capability enables the blade to achieve optimal oblique alignment with the tooth edges during cutting operations, simultaneously improving cutting effectiveness and maintaining alignment precision through controlled movement rather than fixed positioning
Data Source
AI summary
A cutting tip, a cutting tool and a gear edge cut-off device have greater ease-of-use than the conventional art. The cutting tip has a shaft portion supported linearly movably and forwardly biased in a linearly moving direction, an angular base portion provided at a front end of the shaft portion and having a pair of skirt faces and a ridge portion that extends obliquely with respect to the linearly moving direction, a groove depressed near the ridge portion of the skirt face, a blade edge on the cutting blade, positioned on a border line between the ridge portion and the groove, a rake face provided on the cutting blade and positioned further toward the groove side than the blade edge, and a flank face positioned further toward the ridge portion side than the blade edge and jutting out in the forward direction as it retracts from the blade edge.