Bidirectional Deburring Cutter for Main-Bore Transverse Recesses
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing deburring tools are ineffective in removing burrs from transverse recesses intersecting a main bore due to non-angled cutting edges, leading to percussive movements that create chatter marks and require separate deburring actions for clockwise and counterclockwise rotations, resulting in inefficient and incomplete deburring.
Innovation Solution
A deburring tool with continuously curved and convex cutting edges that perform a peeling cut along the recess edges, allowing for simultaneous deburring in both clockwise and counterclockwise rotations, starting from the main bore and moving radially outward to remove burrs effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If cutting edges are arranged perpendicular to the tool axis (conventional design), then the tool structure is simple, but the cutting edges cannot perform peeling cuts on transverse recess edges, resulting in percussive movements and chatter marks
Solution Approach 1:
The cutting edge is designed with a continuously curved and convex geometry instead of straight or angular shapes. This curved cutting edge enables the tool to perform peeling cuts along the recess edges by following the contour of the material, eliminating percussive movements and chatter marks while maintaining deburring quality.
2Productivity
If cutting edges have clearance angles for single-direction rotation (conventional design), then the tool is simpler to manufacture, but separate deburring actions are required for clockwise and counterclockwise rotations, reducing productivity
Solution Approach 1:
The cutting edge is designed with universal functionality to perform effective deburring in both clockwise and counterclockwise rotation directions. The continuously curved and convex geometry allows the cutting edge to maintain peeling cut capability regardless of rotation direction, eliminating the need for separate deburring actions and doubling productivity.
3Reliability
If cutting edges are designed for penetrating deburring from main bore (conventional design), then the tool can access transverse recesses, but knife breakage occurs due to inappropriate blade shapes
Solution Approach 1:
The continuously curved and convex cutting edge geometry distributes cutting forces more evenly during penetrating deburring operations. This curved design prevents stress concentration that leads to knife breakage, enhancing tool reliability while maintaining effective burr removal from the main bore into transverse recesses.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
Deburring tool (7) for deburring the edges of transverse recesses (3, 3a-i) extending from a main bore (2), comprising a shaft (8, 9) driven to rotate about the tool axis (11), which can be inserted into and withdrawn from the main bore in the feed direction, and at least one cutter window (26) is arranged at its lower end, in which at least one spring-loaded cutter (10, 10', 10", 10'", 10"") is slidably arranged approximately perpendicular to the tool axis (11), which has at least one cutting edge (10a, 10b) at its front end, which engages the edge of the transverse recess (3, 3a-i) and deburrs it, wherein the cutter (10, 10', 10", 10'", 10"") consists of two cutting edges (10a, 10b) opposite each other in the direction of rotation (12, 13), which have an equally cutting effect for clockwise and counterclockwise rotation (12, 13),wherein one cutting edge (10a) is designed for clockwise rotation (12) and the other cutting edge (10b) for counterclockwise rotation (13) and that the two cutting edges (10a, 10b) are inclined and arcuate with their cutting edges at an angle between 0° and 90°, but preferably between 5° and 45° to the tool axis (11) and thus to the longitudinal axis (2a) of the main bore (2).