Multi-Pocket Blade Holder Support for Rigid Grooving Cuts
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Solution Overview
Problem
Conventional cutting tools with multiple pockets suffer from reduced rigidity, leading to defects in machined surfaces and poor cutting straightness, especially in grooving and cutting off machining with large projection amounts, which affects machining conditions and quality.
Innovation Solution
A polygonal plate-like member with insert pockets and recess portions is used in conjunction with a holder that constrains the blade, providing support and reducing deflection through contact with a support portion and relief portions, enhancing rigidity and stability during machining.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a blade including multiple insert pockets is used, then economic efficiency is improved, but rigidity of the tool deteriorates
Solution Approach 1:
The blade is divided into multiple independent insert pockets, allowing multiple cutting inserts to be mounted on a single blade. This segmentation enables the blade to maintain structural integrity while accommodating multiple cutting positions, thereby improving economic efficiency without significantly compromising rigidity when properly designed
Solution Approach 2:
Recess portions are strategically formed at specific locations corresponding to insert pockets where cutting forces are applied. This local modification provides targeted support to enhance rigidity at critical areas while maintaining the overall blade structure and multiple pocket functionality
2Adaptability or versatility
If the projection amount of the blade increases, then grooving and cutting off machining capability is improved, but rigidity of the tool deteriorates
Solution Approach 1:
Recess portions are pre-formed in the blade at locations that will experience cutting forces during grooving and cutting off operations. This preliminary structural preparation provides anticipatory support that maintains rigidity even when the blade projects significantly from the holder, enabling large projection amounts without sacrificing tool stiffness
Data Source
AI summary
The present disclosure improves the machining conditions and enhances the quality of machined surfaces, particularly in cutting off and grooving machining when the projection amount of a plate-like member is large. A blade, which is a plate-like member having a polygonal shape and used for cutting machining, includes: a plurality of insert pockets; and recess portions formed by partial cutting corresponding to insert pockets respectively. A holder includes: a holder main portion; and a support portion with which a part of the recess portion formed in the blade contacts. The holder is configured in which the blade can be installed in a state where the part of the recess portion can contact with the support portion.