Sliding Cutting Insert Structure to Prevent Crossed Line Patterns
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Solution Overview
Problem
Milling tools face challenges in avoiding crossed line patterns on machined surfaces, particularly in multi-axis machining centers, due to limitations in adjusting the rotation axis and wiper cutting edge positions, which restricts versatility and increases the risk of surface damage.
Innovation Solution
A cutting tool design featuring a body with a pocket containing a cutting part and an elastic body that applies an urging force, allowing the cutting part to slide rearward and preventing contact with the workpiece during rearward feed direction, thus reducing the risk of crossed line patterns without tilting the rotation axis, enhancing versatility and machining efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the rotation axis is tilted toward the front side in the feed direction, then the risk of crossed line pattern is reduced, but the versatility for multi-axis machining is limited
Solution Approach 1:
The cutting part is designed to be movable relative to the body along the rotation axis, transitioning between a front position for machining and a rear position for non-machining. This dynamic positioning eliminates the need for tilting the rotation axis while preventing crossed line patterns, thereby maintaining versatility for multi-axis machining operations.
Solution Approach 2:
The cutting tool is divided into a body and a separable cutting part that can move independently. The cutting part includes a cutting edge for machining and can be positioned at different locations along the rotation axis. This segmentation allows the cutting edge to be repositioned to avoid contact with the workpiece during non-machining phases without constraining the rotation axis orientation.
2Device complexity
If the cutting part is fixed in position, then the structure is simple, but the cutting edge contacts the workpiece during rearward feed direction causing crossed line patterns
Solution Approach 1:
The cutting part is designed with movable capability along the rotation axis, transitioning between front and rear positions. This movement is controlled to position the cutting edge appropriately: at the front during machining and at the rear during non-machining phases. The elastic body provides the necessary urging force to maintain proper positioning while allowing the required movement, balancing structural simplicity with effective crossed line pattern prevention.
Solution Approach 2:
An elastic body is introduced as an intermediary element between the body and the cutting part. This elastic body applies an urging force to the cutting part, ensuring it maintains proper positioning while allowing controlled movement. The elastic body mediates the interaction between the fixed body structure and the movable cutting part, enabling the cutting part to move rearward to prevent crossed line patterns while maintaining overall structural simplicity.
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
The design effectively reduces the risk of crossed line patterns and allows for versatile machining without tilting the rotation axis, improving machining efficiency and surface accuracy while minimizing the need for complex structures and reducing manufacturing costs.
Implementation Method 1
The elastic body is located between the body and the cutting part, and applies an urging force in a direction toward the rear end to the cutting part
Data Source
AI summary
A cutting tool in an embodiment of the present disclosure includes a body which extends from a front end toward a rear end along a rotation axis and includes a pocket, a cutting part located in the pocket, and an elastic body which is located between the body and the cutting part and applies an urging force in a direction toward the rear end to the cutting part. The pocket includes a first seating surface directed to a front side in a rotation direction of the rotation axis. The cutting part includes a rear surface which is located on a rear side in the rotation direction of the rotation axis and which is in contact with the first seating surface. The elastic body is in contact with the first seating surface and the rear surface. The rear surface is slidable toward the rear end.