Integrated Tool Holder Layout for Greater Machining Freedom
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Solution Overview
Problem
The existing tool rest systems for machine tools, such as lathes and machining centers, face an increase in size and cost when attaching sleeve holders or swiveling units for rotary tools, which limits machining freedom and increases expenses.
Innovation Solution
A tool holder and tool rest design that incorporates a shaft part fixed to the cutting tool fixing groove, with a holding part capable of holding both rotary and non-rotary tools whose machining axis extends along the spindle axis, allowing for improved machining freedom without increasing costs by integrating these tools into the cutting tool holder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a sleeve holder or swiveling unit is attached to the tool rest main body for rotary tools, then machining freedom is improved, but the size and cost of the tool rest increase
Solution Approach 1:
The patent merges the rotary tool holding function with the existing cutting tool holder by providing a tool holder that can accommodate both cutting tools and rotary tools (drills, taps, boring bars) through a unified structure with multiple types of tool fixing grooves, eliminating the need for separate sleeve holders or swiveling units
Solution Approach 2:
The tool holder is designed with multi-functionality to hold various types of tools including cutting tools, rotary tools, and non-rotary tools through different fixing groove configurations (V-shaped grooves for cutting tools, through holes for rotary tools), allowing a single component to perform multiple functions that previously required separate dedicated components
2Manufacturing precision
If multiple specialized holders are used for different tool types, then tool holding precision is improved, but device complexity and cost increase
Solution Approach 1:
The tool holder incorporates multiple types of tool fixing grooves (V-shaped grooves for cutting tools, through holes for rotary tools) within a single structure, allowing precise holding of different tool types without requiring multiple specialized holders, thereby reducing component complexity while maintaining precision
Data Source
AI summary
In order to improve the machining freedom of a workpiece while suppressing a cost increase, a tool rest for a machine tool includes a cutting tool holder having a plurality of parallel cutting tool fixing grooves to which a shank of a cutting tool can be fixed, and a tool holder that holds a tool for machining a workpiece gripped by a spindle that is capable of rotating about a spindle axis AX0. The tool holder includes a shaft part that is fixed to the cutting tool fixing groove, and a holding part. The holding part holds, as the tool that performs machining about a machining axis AX4, at least one of a rotary tool and a non-rotary tool in which the machining axis AX4 extends along the spindle axis AX0.