Angled Cutting Insert Holder for Secure Tangential Clamping
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Solution Overview
Problem
Tangential cutting applications require secure clamping of cutting inserts to maintain quality of cut and prevent damage, especially when using expensive superhard materials, as loose clamping can lead to insert and milling head damage under harsh conditions.
Innovation Solution
A holder system with a base and angled slot for cutting inserts, ranging from 10 to 60 degrees, providing secure positioning and force transfer while allowing for reduced insert dimensions, which can be integrated into or separate from the cutting apparatus, enhancing clamping rigidity and cost efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If traditional milling with inserts mounted along the radius is used, then the tool structure is simpler, but the edge life is reduced under harsh cutting conditions
Solution Approach 1:
The patent transitions from traditional radial insert mounting to tangential insert mounting, fundamentally changing the dynamics of force application. By mounting inserts tangentially around the outer diameter, the cutting forces are redirected to act on the thickest part of the insert, dynamically optimizing the force distribution during cutting operations and significantly extending edge life under harsh conditions
2Reliability
If secure clamping of cutting inserts is implemented, then the quality of cut is maintained and damage is prevented, but the clamping mechanism complexity increases
Solution Approach 1:
The holder is segmented into distinct functional elements: a base providing structural support, an angled slot for precise insert positioning, and a clamping mechanism. This segmentation allows each component to perform its specific function efficiently, achieving reliable insert retention through a modular design that avoids unnecessary complexity
Solution Approach 2:
The angled slot acts as an intermediary element between the insert and the clamping mechanism. It provides a geometric interface that naturally positions the insert at the correct angle while the clamping mechanism applies force, mediating between positioning and retention functions
3Strength
If larger core diameter is used in tangential milling cutters, then the overall strength is enhanced, but the tool size and weight increase
Solution Approach 1:
The patent optimizes the geometric parameters of the holder, particularly the angle of the slot relative to the base. By carefully selecting parameters within specific ranges (slot angle between 10-60 degrees), the design achieves maximum strength-to-weight ratio, allowing the tool to maintain enhanced strength without excessive weight gain
Data Source
AI summary
Holders are described herein providing secure clamping and/or positioning of cutting inserts. Briefly, a holder for a cutting insert comprises a base and a slot for receiving the cutting insert, wherein the slot forms an angle with the base ranging from 10 degrees to 60 degrees.