Rotating Tool Insert Layout to Suppress Surface Steps
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing rotating tools often result in the formation of steps on processed surfaces due to variations in the positions of cutting inserts, leading to deviations in the cutting trajectories.
Innovation Solution
A rotating tool design featuring a body with alternating first and second pockets for attaching cutting inserts, where the cutting inserts have specific main cutting edges with trajectories that intersect, ensuring that the tangents at the intersection points are inclined closer to the central axis, thereby minimizing step formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If cutting inserts are attached to the body, then the rotating tool can perform cutting operations, but variations in the positions of cutting inserts cause deviations in cutting trajectories leading to step formation on processed surfaces
Solution Approach 1:
The body is divided into multiple pockets (first pockets and second pockets) that are alternately arranged, with each pocket designed to hold a cutting insert. This segmentation allows for precise positioning of multiple cutting inserts while maintaining their respective cutting trajectories, thereby preventing step formation on processed surfaces despite position variations.
Solution Approach 2:
The first pockets and second pockets are designed with different orientations relative to the central axis, creating local quality differences in the cutting trajectories. The tangents to the cutting trajectories at intersection points are specifically inclined closer to the central axis in opposite directions for different pockets, ensuring that each local region contributes to suppressing step formation.
2Manufacturing precision
If cutting inserts are positioned alternately in first and second pockets, then cutting trajectories can be optimized to intersect with proper inclination, but the structure becomes more complex with multiple pocket types
Solution Approach 1:
The first pockets and second pockets are designed with asymmetric orientations relative to the central axis. The tangents to the cutting trajectories at intersection points are inclined closer to the central axis in opposite directions for different pocket types, creating an asymmetric structure that optimizes cutting precision while maintaining manufacturability.
Solution Approach 2:
Multiple functional requirements are merged into the pocket design: each pocket serves as both a mounting structure for cutting inserts and a trajectory-defining element. The alternating arrangement of first and second pockets combines positioning functionality with trajectory optimization in a single structural feature.
Data Source
AI summary
A first main trajectory represents a trajectory of a first main cutting edge obtained by revolving and projecting the first main cutting edge onto a plane including a central axis. A second main trajectory represents a trajectory of the second main cutting edge obtained by revolving and projecting the second main cutting edge onto the plane. The first main trajectory intersects the second main trajectory. A tangent to the first main trajectory at an intersection between the first main trajectory and the second main trajectory is inclined to be closer to the central axis in a direction from the first surface toward the second surface. A tangent to the second main trajectory at the intersection is inclined to be closer to the central axis in a direction from the second surface toward the first surface.