Turning Tool Insert Orientation for Compact Multi-Corner Machining
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Solution Overview
Problem
Existing tool systems for turning machining require significant space and are not optimal for applications where compactness is crucial, limiting the variety of machining operations that can be performed.
Innovation Solution
A tool system with a tool body and a rotationally fixed cutting insert where the upper side of the cutting insert is oriented perpendicular to the longitudinal axis, allowing for multiple usable cutting corners that can be rotated to change machining conditions without additional inserts, enabling compact and versatile machining operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple interchangeable cutting inserts are arranged on a tool head with rake faces extending perpendicularly to the longitudinal axis, then a large variety of machining operations can be achieved, but the space requirement becomes too large
Solution Approach 1:
The cutting insert is designed with multiple cutting corners (first cutting corner, second cutting corner, and additional cutting corners) on a single insert, each with different corner angles and geometries. By rotating the tool body about its longitudinal axis, different cutting corners can be brought into the machining position to perform different turning operations such as longitudinal turning, copy turning, and facing operations, eliminating the need for multiple separate inserts
Solution Approach 2:
The invention utilizes the rotational dimension of the tool body about its longitudinal axis to access different cutting corners on the same cutting insert plane. This rotational degree of freedom allows multiple machining operations to be performed without adding axial or radial dimensions to the tool system, thus maintaining compactness while achieving versatility
2Adaptability or versatility
If multiple cutting inserts are used to achieve different turning operations, then machining versatility is improved, but the device complexity increases
Solution Approach 1:
Multiple cutting corners with different geometries are integrated into a single cutting insert. The first cutting corner has a first corner angle suitable for longitudinal turning, the second cutting corner has a second corner angle for copy turning, and additional cutting corners provide further machining capabilities. This merging reduces the number of separate inserts and simplifies the tool system
Solution Approach 2:
The single cutting insert is designed to perform multiple machining functions through its multiple cutting corners, each optimized for specific operations. The tool body rotation mechanism enables selective access to different cutting corners, providing universal machining capability without requiring multiple specialized inserts
Data Source
AI summary
A tool system for machining includes a tool body that has a first end for connecting to a machine tool and a second end having an end face on which a seat for an interchangeable cutting insert is formed. The cutting insert has an underside formed as an abutment surface, a top side formed as a rake face, and an encircling side face formed as a flank, and a cutting edge is formed at a transition from the top side to the encircling side face. The cutting insert is arranged on the seat such that the top side extends perpendicularly to the longitudinal axis of the tool body and the cutting edge protrudes beyond the outer circumference of the end face of the tool body in a radial direction with respect to the longitudinal axis with two usable cutting corners and cutting-corner portions adjoining the latter on both sides.