Cutter Holder Base System with Spherical Contact for Force Dispersion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing cutter holder and base system in milling machines experiences severe wear and reduced service life due to uneven distribution of cutting forces, leading to frequent replacements and high maintenance costs.
Innovation Solution
A novel cutter holder and base system with a hole-shaped inner area and curved surfaces arranged at an angle, supported by a bolt and lock washer, featuring a C-shaped swell pin and rubber seal ring for secure connection and improved stress distribution, allowing better transmission of cutting forces and enhanced sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the cutter holder uses a plane or integrated spherical butt joint face connected by bolt pressing force, then the structure is simple, but the cutting force cannot be well dispersed, leading to severe wear and reduced service life
Solution Approach 1:
The patent applies spherical curvature to the contact surfaces between the cutter holder and base. The cutter holder has a spherical outer surface that contacts a spherical inner cavity in the base, allowing multi-directional force distribution. This curved surface design enables the cutting forces to be dispersed uniformly across the spherical contact area, significantly reducing wear compared to flat or simple spherical joint faces, while maintaining reasonable structural complexity.
2Reliability
If the cutter holder and base use a simple bolt connection, then the device complexity is low, but the degree of cooperation between base and cutter holder is reduced, resulting in severe wear
Solution Approach 1:
The patent merges multiple functions into the spherical connection structure. The spherical outer surface of the cutter holder and spherical inner cavity of the base combine to provide both precise positioning and multi-directional force bearing capabilities. This unified spherical interface replaces what would otherwise require separate positioning features and bearing surfaces, achieving high reliability of cooperation while controlling overall structural complexity.
Solution Approach 2:
The spherical geometry of the connection interface enables superior force distribution compared to flat or simple joint faces. The curved surfaces allow cutting forces from various directions to be evenly dispersed across the contact area, increasing the degree of cooperation between base and cutter holder and reducing wear, while maintaining a relatively simple single-piece structure for each component.
3Productivity
If frequent replacements of cutter holder and base are performed, then the milling machine can maintain cutting performance, but the maintenance time and costs increase
Solution Approach 1:
The spherical contact surfaces between cutter holder and base distribute cutting forces uniformly, reducing localized wear and stress concentration. This extends the service life of both components, allowing them to operate longer before requiring replacement or maintenance, thereby reducing maintenance frequency and associated time losses while maintaining cutting performance.
Data Source
AI summary
The present invention belongs to the technical field of milling machines, and mainly relates to a novel cutter holder and base system for a milling machine. The cutter holder and base system according to the present invention aims to solve the problems in the prior art that a cutter holder structure is unreasonable, the cutting force of a cutter cannot be well dispersed in the cutter holder and a base, so that the service lives of the cutter holder and the base are shortened. The base is provided with a hole-shaped inner area and two curved surface areas, where the two curved surface areas are disposed in a circumferential area of the hole-shaped inner area, the curved surface areas are arranged at an angle, and each curved surface area includes two curved surfaces. The cutter holder improves its own usage performance while a lighter weight is achieved.