Interchangeable Drill Guide With Integrated Water Cooling

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing drill guides for manual or portable drills are cumbersome and inefficient, leading to uneven holes and inadequate cooling of drill bits during hard material perforation, which affects hole quality and drill bit performance.

Innovation Solution

A drill guide with interchangeable drilling heads of varying diameters and a built-in water tank system that allows for controlled water supply to the drill bit, ensuring precise positioning and cooling, while reducing the guide's size and weight for improved manageability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a drill guide with through holes for multiple drill bit diameters is used, then drilling precision and hole perpendicularity are improved, but the guide becomes large, bulky and heavy

Engineering Contradiction:
Improvehole perpendicularityVSAvoidguide weight
Core Design Contradiction:
Manufacturing precisionVSWeight of stationary object

Solution Approach 1:

The drill guide is divided into a base unit and multiple interchangeable drilling heads. Each drilling head contains a specific through hole configuration for particular drill bit diameters. This segmentation allows the user to carry a compact base unit and only attach the specific drilling head needed for the current task, rather than carrying a large guide with all possible hole configurations built in.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The base unit is designed as a universal platform that can accept different drilling heads through a standardized coupling mechanism. The retention means (such as a retention plate) ensures secure attachment of any drilling head to the base unit. This multi-functionality allows one compact base unit to serve multiple drilling purposes by simply changing the drilling head attachment.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Temperature

If water is applied directly to cool the drill bit during hard material perforation, then cooling effectiveness is improved, but the process becomes inconvenient and hinders hole quality

Engineering Contradiction:
Improvedrill bit temperatureVSAvoidcooling operation convenience
Core Design Contradiction:
TemperatureVSEase of operation

Solution Approach 1:

The drill guide integrates a water tank directly into the base unit, combining the cooling function with the guiding function. The water delivery system is merged with the drilling operation, allowing simultaneous cooling and drilling without requiring separate manual water application. This integration eliminates the inconvenience of detaching the guide or manually applying water while maintaining effective drill bit cooling.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent introduces an intermediary water delivery system that includes a water tank, delivery channels, and spray nozzles positioned at the drilling location. This intermediary system mediates between the water source and the drill bit, providing controlled and directed cooling water application. The water is delivered through the drill guide structure itself, ensuring precise targeting of the drill bit and hole area without manual intervention.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Manufacturing precision

If a drill guide is used to ensure correct drill bit positioning, then hole quality is improved, but the guide must be detached for water application, reducing efficiency

Engineering Contradiction:
Improvehole qualityVSAvoiddrilling efficiency
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The drill guide merges multiple functions into a single integrated tool: guiding the drill bit to ensure perpendicular holes, securing the drill bit position during drilling, and providing continuous water cooling. This combination eliminates the need to detach or reposition the guide during the drilling process, maintaining both hole quality and drilling efficiency simultaneously.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The water cooling system is designed to operate continuously throughout the drilling process without interruption. The water tank is positioned and connected such that cooling water flows continuously to the drill bit from start to finish of the drilling operation. This continuous cooling action maintains drill bit temperature control while the guide remains in place, ensuring uninterrupted drilling and maintaining productivity.

Inventive Principle:
Principle #20Continuity of useful action

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 solution enables precise, high-quality hole drilling by ensuring perpendicularity and effective cooling of drill bits, enhancing hole quality and extending drill bit lifespan by maintaining optimal temperature during hard material perforation.

Implementation Method 1

the drill bit heats up through friction and it is advisable to cool it down in order to avoid the high temperatures that reduce the performance of the tool

Methodology Applied
Scientific EffectFriction heating: Friction

Implementation Method 2

This operation is carried out by directly applying fluid, such as compressed air or water, onto the drill bit and the hole

Methodology Applied
Scientific EffectCooling: Cooling

Data Source

PatentEP2228158B1Drill guide
Publication Date: 2015.12.23 GERMANS BOADA SA
  • EP2228158B1 patent drawingFigure 1
  • EP2228158B1 patent drawingFigure 2~3
  • EP2228158B1 patent drawingFigure 4~5

AI summary

This drill guide is made up of the following components: a main body (1) with a flat base and a through hole for guiding the movement of the drill bit; interchangeable drilling heads (2) for guiding drill bits of different diameters, designed to be optionally attached and that exactly fit onto the housing (11) defined according to the size of the through hole of the main body (1) - the aforementioned interchangeable drilling heads (2) have inside apertures (21) of different diameters on each drilling head (2), which are specifically designed to guide drill bits of different diameters; the means for positioning the attachment of the drilling head (2) in use in a set position inside the housing (11); and the means of retaining any of the interchangeable drilling heads (2) inside the housing (11).