Wedge Pressing Member for Compact Multi-Insert Cutting Tools
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cutting tools face limitations in increasing the number of cutting inserts and reducing the size of the tool body due to the space occupied by pressing members used for fixation.
Innovation Solution
A pressing member with a wedge part and a pressure-receiving part is designed to be inserted into a pocket of a tool body, allowing for the fixation of cutting elements without the need for a female thread portion, thereby reducing the size of the pressing member and allowing for more cutting elements to be mounted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pressing members with female thread portions are used for fixation, then reliable fixation of cutting inserts is achieved, but the size of the pressing member increases and the number of cutting inserts that can be mounted is limited
Solution Approach 1:
The female thread portion is extracted from the pressing member and relocated to the tool body pocket. This allows the pressing member to be reduced in size while maintaining reliable fixation through the screw-threaded pocket structure in the tool body.
Solution Approach 2:
The pocket structure in the tool body acts as an intermediary that provides the threading function. Instead of the pressing member containing the thread, the pocket serves as the mediating structure that enables screw engagement and reliable fixation.
2Quantity of substance
If cutting inserts are made thinner to increase the number of mounted inserts, then the number of cutting inserts increases and tool size reduces, but the pressing member still occupies space at the leading end
Solution Approach 1:
The threading function is extracted from the pressing member and placed in the tool body pocket, allowing the pressing member to be made thinner and occupy less space at the leading end, thereby enabling more cutting inserts to be mounted.
Solution Approach 2:
The threading structure is moved from the radial dimension (pressing member diameter) to the axial dimension (pocket depth), allowing the pressing member to be thinner while maintaining fixation capability through the threaded pocket.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enables an increase in the number of cutting elements mounted on the tool body and a reduction in the size of the tool body, enhancing machining efficiency while minimizing space occupation.
Implementation Method 1
a pressing member (50) inserted into a pocket (12) of a tool body (10) for pressing and fixing a cutting insert (40) placed in a mounting part (13) of the pocket (12) onto a mounting surface (13a) of the mounting part (13)
Implementation Method 2
a pressure-receiving part (52) that is pushed into the pocket (12) in the insertion direction by a fastening component (70) that is screwed into the pocket (12)
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
A pressing member is configured to be inserted into a pocket of a tool body for pressing and fixing a cutting insert placed in a mounting part of the pocket onto a mounting surface of the mounting part. The pressing member includes a wedge part having a contacting surface that comes into contact with an inner surface of the pocket, and a pressing surface that is in contact with the cutting insert. The pressing surface is formed so as to gradually come close to the contacting surface in an insertion direction into the pocket. The pressing member also includes a pressure-receiving part that is pushed into the pocket in the insertion direction by a fastening component that is screwed into the pocket.