Stepped Drill Bit With Visual Diameter Indicators
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Solution Overview
Problem
Existing drill bits often result in openings that are either too large or too small for the intended fasteners, requiring additional work to correct, as users struggle to quickly and accurately determine the bore diameter during drilling.
Innovation Solution
A drill bit with a conical shape featuring a plurality of steps and grooves, each with a different cutting diameter, and visual indicators in the grooves that allow easy identification of the current bore diameter, supported by a lookup table for precise determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional drill bits without visual indicators are used, then the device complexity is reduced, but the ease of operation deteriorates due to difficulty in quickly identifying bore diameter
Solution Approach 1:
The patent applies color changes by placing visual indicators (such as colored bands, rings, or markings) on different steps of the drill bit. Each color corresponds to a specific bore diameter, allowing users to quickly identify the current step and resulting hole size without stopping the drilling process or performing measurements. This resolves the contradiction by making diameter identification immediate and intuitive while adding minimal visual elements to the drill bit structure.
Solution Approach 2:
The patent uses visual indicators that create a visual copy or representation of the bore diameter information. Instead of requiring direct measurement or calculation, the colored indicators on each step provide an immediate visual reference that corresponds to the hole size being created, enabling rapid identification without additional tools or procedures.
2Measurement precision
If operators stop drilling to measure bore diameter, then measurement precision is improved, but productivity deteriorates due to interruption of the drilling process
Solution Approach 1:
The drill bit provides self-service by incorporating visual indicators directly on its structure that automatically indicate the current bore diameter during operation. The visual indicators are positioned and designed so that the information is continuously available without requiring the operator to stop, measure, or calculate anything. The system serves itself by providing the measurement information through the visual cues on the drill bit steps.
Solution Approach 2:
The patent implements feedback by providing real-time visual information about the bore diameter being created. As the drill bit progresses through the material and different steps engage, the corresponding visual indicators become visible, providing immediate feedback to the operator about the current hole size. This continuous feedback eliminates the need to stop for measurement while maintaining accurate knowledge of bore diameter.
3Manufacturing precision
If re-drilling is performed to correct sizing errors, then manufacturing precision is improved, but loss of time increases due to additional drilling operations
Solution Approach 1:
The patent applies preliminary action by providing visual indicators that enable the operator to identify the correct step and bore diameter before completing the drilling operation. By having the visual information available during the process, the operator can ensure the correct hole size is achieved from the start, preventing the need for corrective re-drilling operations. The visual cues guide the operator to stop at the appropriate step that produces the desired bore diameter.
Data Source
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AI summary
A drill bit including a body extending from a shank to a point angle, wherein the body includes a plurality of steps each associated with a different cutting diameter; a first groove disposed between a first pair of adjacent steps of the plurality of steps and radially inset from an outer diameter of each of the first pair of adjacent steps; and a first visual indicator disposed in the first groove.