Turning Tool Layout for Y-Axis Indexing Without Turret Rotation

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Solution Overview

Problem

Conventional turning tools on CNC-lathes require time-consuming turret rotation for indexing, leading to downtime when switching between different cutting tools, which hampers efficient machining of complex shapes.

Innovation Solution

A turning tool design with a coupling portion that allows for quick indexing along the Y-axis, featuring a first and second cutting element with top surfaces facing the same direction, enabling linear movement between cutting elements without rotating the tool, thus reducing downtime.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional turret rotation is used for indexing between turning tools, then different cutting tools can be switched, but downtime increases due to the time required for turret rotation

Engineering Contradiction:
Improveability to switch between different cutting toolsVSAvoiddowntime during tool indexing
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The tool carrier is segmented to hold multiple turning inserts independently, allowing individual inserts to be positioned and indexed without rotating the entire turret. This segmentation enables quick switching between cutting tools by moving only the required insert along the Y-axis, significantly reducing indexing time while maintaining the ability to switch between different cutting tools.

Inventive Principle:
Principle #1Segmentation

2Productivity

If multiple turning inserts are carried on a single tool, then tool switching can be achieved quickly, but the complexity of the device increases

Engineering Contradiction:
Improvespeed of tool switchingVSAvoidcomplexity of the tool carrier structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

Instead of rotating the tool carrier in the traditional horizontal plane, the invention positions multiple turning inserts along the Y-axis (vertical dimension relative to the workpiece). This dimensional change allows for quick tool switching by simply moving the tool carrier vertically to select different inserts, reducing the indexing mechanism complexity while improving tool switching speed.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Adaptability or versatility

If the turning tool is designed for use on a wide range of CNC-lathes, then versatility is improved, but the design must accommodate different machine interfaces increasing complexity

Engineering Contradiction:
Improvecompatibility with different CNC-lathesVSAvoidcomplexity of coupling portion design
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The coupling portion is designed with universal features that can interface with different CNC-lathe types (turning lathes, multitask machines, turn-mill machines, sliding head machines). The standardized coupling design allows the same tool carrier to be mounted on various machine interfaces, achieving wide compatibility without requiring complex adaptive mechanisms for each machine type.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS20240051034A1Metal cutting turning tool
Publication Date: 2024.02.15 SANDVIK COROMANT
  • US20240051034A1 patent drawing
  • US20240051034A1 patent drawing
  • US20240051034A1 patent drawing

AI summary

A turning tool includes a coupling portion, which extends along a coupling axis, the coupling axis defining a longitudinal axis of the turning tool. The turning tool includes a first cutting element and a second cutting element, wherein the first cutting element has a first cutting edge. The second cutting element has a second nose cutting edge separating and connecting a second forward cutting edge and a second rearward cutting edge. The first cutting element includes a first top surface, and the second cutting element includes a second top surface. A first top surface and the second top surface face in the same or substantially the same direction.