Replaceable-Tip Drill Bit for Combined Drilling and Fastening
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Solution Overview
Problem
Conventional methods require two separate tools for drilling and fastening operations, which is inefficient and time-consuming, especially when working with metal or concrete.
Innovation Solution
A multifunction drill bit with a replaceable tip that integrates drilling and fastening capabilities, featuring a shank with spiral grooves for chip discharge, threaded sections, a deformable section for jamming, and a guide section for secure fastening, allowing a single tool to perform both functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If two separate tools (drilling machine and electric wrench) are used for drilling and fastening operations, then each tool can be optimized for its specific function, but the number of tools required increases and working time is extended
Solution Approach 1:
The patent combines drilling and fastening functions into a single drill bit tool. The bit includes a drilling section with cutting edges for creating holes and a fastening section with thread structures for securing workpieces. This merging eliminates the need to switch between separate drilling machines and electric wrenches, reducing working time while maintaining optimized functionality for both operations through the integrated design of the dual-function bit
Solution Approach 2:
The drill bit is designed as a universal tool that performs multiple functions: drilling through cutting edges and fastening through integrated thread structures. The bit can drill holes and immediately fasten workpieces in a single operation, making it a multi-functional tool that replaces specialized single-function tools, thereby reducing the number of tools required and accelerating the workflow
2Ease of operation
If two separate tools are used for drilling and fastening, then each tool can be specialized for its function, but the complexity of the toolset increases
Solution Approach 1:
The patent merges drilling and fastening capabilities into a single integrated drill bit, reducing the toolset from two separate specialized tools to one multi-functional tool. The bit features a drilling section with cutting edges and a fastening section with thread structures, combining the functionality of what would otherwise require separate drilling machines and electric wrenches, thereby simplifying the overall device complexity while maintaining operational specialization
Solution Approach 2:
The drill bit serves as a universal tool that performs both drilling and fastening operations, eliminating the need for multiple specialized tools. By integrating both functions into one bit that can be attached to a drilling machine, the patent reduces the number of tools required in the toolset while preserving the specialized capabilities needed for each operation through its dual-section 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
Enables a single operation to both drill and fasten metal or concrete workpieces, reducing tool usage and time, and allowing for easy tip replacement based on the target material.
Implementation Method 1
a deformable section (11123) having a plurality of curved grooves (111231) on an outer surface; and a deformable concave surface (111232) provided on an inner surface of the deformable section (11123)
Implementation Method 2
a plurality of spiral grooves (11121) are provided on the outer shank body (1112) for discharging chips
Data Source
AI summary
A multifunction drill bit includes an outer shank including an outer lock head, an outer shank body, and an axial hole wherein spiral grooves are on the outer shank body; from a joining portion of the outer shank body and the outer lock head to the outer lock head, a threaded section, a deformable section, and a guide section are provided; each of the threaded and deformable sections include first external threads; the deformable section has outer curved grooves; a deformable concave surface is on an inner surface of the deformable section; and first internal threads are on the guide section; and an inner shank in the axial hole and including a top socket, an inner lock head, and an inner shank body. Second external threads are on an inner surface of the guide section corresponding to the first internal threads. A tip of the drill bit is replaceable.