Turning Tool Insert Seat With Adjustable Four-Point Support
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Solution Overview
Problem
Existing turning tools with flexible or moveable elements for additional contact points with cutting inserts are complex, fragile, and often do not provide a sufficiently stable positioning of the cutting insert, especially when machining in different feed directions.
Innovation Solution
A turning tool design featuring a seat with non-adjustable and adjustable contact portions, where the adjustable contact portion is controllable to move between active and non-active positions, providing stable and adaptable mounting of the cutting insert with four contact points, regardless of the machining direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If flexible or moveable elements are used to provide additional contact points, then the number of contact points increases, but the device complexity increases and reliability decreases
Solution Approach 1:
The contact support system is segmented into multiple independent non-adjustable contact portions (at least three) distributed along the wall surface of the seat. Each contact portion independently supports the cutting insert, eliminating the need for complex flexible or moveable elements while achieving stable positioning through distributed contact points.
2Adaptability or versatility
If flexible or moveable elements are used to adapt to insert geometry variations, then adaptability improves, but the structure becomes more fragile
Solution Approach 1:
Different contact portions are strategically positioned at specific locations along the wall surface to provide localized support at critical points. This distributed local support system adapts to insert geometry variations through the arrangement of multiple rigid contact portions rather than through flexible materials, maintaining structural robustness while achieving adaptability.
3Reliability
If three contact points are used, then the structure remains simple, but positioning stability is insufficient for multi-directional machining
Solution Approach 1:
The contact portions are arranged in a distributed pattern along the wall surface, utilizing the dimensional space available in the seat structure. This spatial distribution of contact points provides stable support for cutting inserts regardless of the machining feed direction, enabling versatile multi-directional machining while maintaining a simple rigid structure without flexible elements.
Data Source
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AI summary
The invention relates to a turning tool comprising a tool body (1) including a seat (2) for accommodating a cutting insert (10) that comprises a first side (32), a second side (33) opposite the first side, and a peripheral surface (11) extending between the first side (32) and the second side (33). The seat (2) comprises a bottom surface (3), a first wall surface (4) and an opposite second wall surface (5). Each of the first wall surface (4) and the second wall surface (5) comprises at least one non-adjustable contact portion (21, 22, 23). The turning tool further comprises an actuating member (6) providing an adjustable contact portion (20) in the seat (2). The actuating member is controllable to move the adjustable contact portion in relation to the first and/or second wall surface of the seat such that, when the cutting insert (10) is mounted in the seat (2), the adjustable contact portion (20) is moveable between an active position, in which the adjustable contact portion (20) is in contact with and supports the peripheral surface (11) of the cutting insert (10), and a non-active position, in which the adjustable contact portion (20) is spaced from the peripheral surface (11) of the cutting insert (10). The invention also relates to a method for mounting a cutting insert in the seat of a tool body of a turning tool.