Cutting Insert Mounting Cut-Outs for Secure Groove Turning
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Solution Overview
Problem
Existing metal cutting tools for groove turning operations face challenges in achieving economic manufacturing, high strength and rigidity, reduced downtime for indexing and replacement, and minimizing the risk of inadvertent falling parts while ensuring secure clamping and accurate positioning of the cutting insert.
Innovation Solution
The cutting insert features opposing end surfaces with a peripheral surface and a central axis, including at least one cutting portion, a mounting cut-out, and a central through bore. The design incorporates a median plane and specific slope angles for the mounting cut-outs, allowing for reduced volume and improved manufacturing efficiency while maintaining strength and rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the cutting insert uses a traditional solid design without mounting cut-outs, then it has high strength and rigidity, but it increases manufacturing cost and reduces manufacturing efficiency
Solution Approach 1:
The cutting insert is divided into multiple sections by introducing mounting cut-outs that extend between opposing end surfaces. These cut-outs create discrete mounting regions while maintaining the overall structural integrity of the insert body, enabling both efficient manufacturing and adequate strength.
Solution Approach 2:
The mounting cut-outs are strategically positioned to provide localized mounting functionality without compromising the overall strength of the insert. The cut-out geometry is optimized to concentrate material in critical load-bearing areas while removing material only where needed for mounting operations.
2Loss of time
If the cutting insert uses a compact design, then it reduces downtime for indexing and replacement, but it increases the risk of inadvertent falling parts
Solution Approach 1:
The mounting cut-outs extend between opposing end surfaces of the insert, creating a three-dimensional mounting structure. This dimensional approach provides multiple engagement points for mounting hardware, securing the insert firmly in the groove turning tool while maintaining a compact overall geometry that minimizes downtime.
3Device complexity
If the cutting insert uses a simple mounting structure, then it reduces manufacturing complexity, but it compromises secure clamping and accurate positioning
Solution Approach 1:
The mounting cut-outs feature asymmetric geometry with slope surfaces that provide directional guidance for mounting hardware. This asymmetric design ensures accurate positioning of the insert in the groove turning tool while maintaining relatively simple manufacturing processes. The slope surfaces naturally guide the mounting components into the correct position during assembly.
Data Source
AI summary
A cutting tool has a cutting insert removably secured to a holding portion of an insert holder. The cutting insert has opposing first and second end surfaces with an insert peripheral surface and a central axis extending therebetween, at least one cutting portion, and at least one mounting cut-out. Each cutting portion has a cutting edge and an adjacent relief surface facing in a first rotary direction about the central axis. Each mounting cut-out extends between the first and second end surfaces and has a first flank surface and an adjacent first upper slope surface. The first flank surface faces in a second rotary direction about the central axis and the first upper slope surface faces away from a median plane located midway between the first and second end surfaces. The first upper slope surface extends away from the median plane with increasing distance from the first flank surface.