Single Shaft Double Grinding Wheel Drill Bit Grinder
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Solution Overview
Problem
Existing drill bit grinding devices with two separate motive power sources are cumbersome, inefficient in energy use, and limited in adjustable grinding angles, unable to simultaneously grind right spin and left spin drill bits, requiring skilled operation to avoid errors.
Innovation Solution
A double-grinding-wheel type drill bit grinding device with a single driving shaft, featuring two grinding wheels at its ends, multi-axis deflectable grinding seats, and an adjustable apex depth, along with a vacuum passage for dust discharge, enabling simultaneous grinding of right and left spin drill bits and improving environmental sustainability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If two separate motive power sources are used to drive two grinding wheels, then each grinding wheel can be independently driven, but the device becomes cumbersome and wastes electric energy
Solution Approach 1:
The patent combines two separate motive power sources into a single motor that drives a common shaft, which in turn drives both grinding wheels. This merging reduces the number of components, simplifies the device structure, and eliminates energy waste while maintaining the capability to drive two grinding wheels independently through the shaft mechanism.
2Adaptability or versatility
If only flat grinding surfaces are used to fix the drill bit, then the structure is simple, but the adjustable range of grinding angle is limited and cannot grind right spin and left spin drill bits simultaneously
Solution Approach 1:
The patent introduces adjustable grinding seats with multiple positioning devices that can be dynamically adjusted to different angles and positions. This allows the grinding seats to adapt to different drill bit types (right spin and left spin) and grinding angle requirements, significantly enhancing versatility without requiring multiple fixed grinding surfaces.
3Productivity
If individual grinding operations are performed on right spin and left spin drill bits, then each bit can be ground individually, but the operation time increases and grinding errors may occur
Solution Approach 1:
The patent segments the grinding function into two independent grinding wheels driven by a common shaft, each capable of processing different drill bit types simultaneously. This segmentation allows right spin and left spin drill bits to be ground at the same time, doubling productivity while maintaining precision through independent positioning and grinding control for each wheel.
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 device efficiently grinds both right and left spin drill bits simultaneously with adjustable angles, reducing errors and energy waste, while being environmentally friendly through dust vacuuming, enhancing the precision and portability of the grinding process.
Implementation Method 1
the motive power source is a motor and is provided with a vacuum passage for facilitating dust discharge
Data Source
AI summary
A double-grinding-wheel type drill bit grinding device with a single driving shaft comprising a power source disposed on a base, two grinding wheels being disposed at opposite ends of the single driving shaft extending out of the power source. The grinding device further comprises two pair of first grinding and second grinding seats, each pair of first and second grinding seats being disposed close to the respective grinding wheels at both ends of the driving shaft, a clamping assembly for clamping a drill bit to support the drill bit upon sequential insertion into one pair of the first and second grinding seats, and a positioning device being disposed on a front surface of the base for providing alignment of the drill bit within the clamping assembly prior to the insertion of the drill bit into one pair of the first and second grinding seats. The power source is a pneumatic motor and is provided with a vacuum passage for facilitating dust discharge.