Counterbore Cup Ejector for Continuous Debris Clearing
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Solution Overview
Problem
Existing counterbore tools face issues with debris accumulation and ejection, particularly in designs where the cup fills up quickly with material, leading to jamming and increased time for debris removal.
Innovation Solution
A counterbore tool design featuring a cup with an internal void and an open end, equipped with a debris ejection mechanism that spins independently of the cup, utilizing ramped or tapered wings to effectively eject trapped material through circumferential openings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a cup design is used to contain debris during drilling, then debris containment is improved, but the cup fills up quickly leading to jamming and increased debris removal time
Solution Approach 1:
The patent extracts the debris ejection function from the cup structure by adding a separate rotatable ejector mechanism. This ejector actively removes debris from the cup during drilling operations, preventing the cup from filling up and jamming, thus reducing debris removal time while maintaining effective debris containment.
Solution Approach 2:
The patent introduces a dynamically rotating ejector mechanism that spins independently within the cup. This dynamic element actively engages with debris through ramped or tapered wings, converting the rotational motion into a ejection force that propels debris outward through circumferential openings, enabling continuous debris removal during drilling.
2Manufacturing precision
If a flat surface contact design is used to stop boring at appropriate depth, then depth control is improved, but significant shavings are trapped in the hole
Solution Approach 1:
The patent extracts trapped shavings from the counterbore hole by introducing a rotatable ejector mechanism that actively removes debris during the drilling process. The ejector's ramped or tapered wings engage shavings and propel them outward through circumferential openings in the cup, preventing accumulation while maintaining precise depth control through the flat surface contact design.
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 tool efficiently clears debris from the cup, preventing jamming and ensuring accurate counterbore depth, thereby reducing project time and improving operational efficiency.
Implementation Method 1
The ejection mechanism spins with the drill, and can spin independently of the cup. In some such embodiments, the ejection mechanism is configured with ramped or angled wings that help eject material trapped or compacted within the cup after boring a hole.
Data Source
AI summary
A debris ejector for a drilling tool is disclosed. The ejector may be provided as part of a tool assembly where the ejector is coupled with bit. In an example, a tool includes a cup and a drill bit passing through an internal void of the cup. The cutting end of the bit extends out the open end of the cup at a fixed distance, while an attachment end of the bit extends out the back of the cup. The tool further includes an ejector within the cup. The ejector spins with the bit and independently of the cup. In one example, the ejector includes ramped or angled wings that eject material within the cup. In another example, the ejector includes tapered wings with straight and/or angled walls that push material out of the cup through one or more holes of the cup.