Dual-Sided Drill Guide Suction for CFRP Dust Capture
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Solution Overview
Problem
Current methods for guiding drills and suctioning dust and scraps during drilling or countersinking operations are inefficient, particularly when dealing with fine dust from carbon fibre reinforced plastic (CFRP), and often require additional equipment and manual effort, limiting precision and accessibility, especially in tight spaces.
Innovation Solution
An auxiliary device with dual operating units on opposite sides of the drill bit, featuring adjustable constraint assemblies and a channeling system connected to a suction source, allowing simultaneous suction from both the inlet and outlet sides of the drill bit, enabling precise guidance and efficient dust collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single suction source is used, then the device complexity is reduced, but the suction effectiveness on both sides of the drill bit cannot be achieved simultaneously
Solution Approach 1:
The patent merges two suction sources into a single integrated suction unit that simultaneously suction dust and scraps from both sides of the drill bit. The suction unit includes a first suction source for the inlet side and a second suction source for the outlet side, both connected to a common vacuum generator, achieving dual-sided suction without requiring two separate vacuum systems.
Solution Approach 2:
The suction system is segmented into two independent suction channels (first suction channel for inlet side, second suction channel for outlet side) that can be independently controlled and adjusted, allowing precise suction effectiveness on each side while sharing a common vacuum generation system.
2Measurement precision
If traditional guides are used, then drill guidance is provided, but dust suction precision and effectiveness are insufficient
Solution Approach 1:
The patent combines the drill guidance function and dust suction function into a single integrated auxiliary device. The guide body provides precise drill bit guidance through guide holes, while the integrated suction unit simultaneously removes dust and scraps at both the inlet and outlet sides of the drill bit, achieving both guidance precision and suction effectiveness.
3Device complexity
If manual dust collection methods are used, then equipment requirements are reduced, but suction precision and timeliness deteriorate
Solution Approach 1:
The auxiliary device is designed to be self-contained and self-sufficient, integrating both guidance and suction functions in one unit that attaches directly to the workpiece. The device performs its own dust collection function without requiring external manual intervention or additional separate equipment, achieving precise and timely suction through its integrated design.
4Device complexity
If simple guide structures are used, then device complexity is reduced, but adaptability to different workpiece thicknesses is limited
Solution Approach 1:
The constraint assembly includes adjustable constraint members that can be positioned at different distances from each other to accommodate workpieces of varying thicknesses. The constraint distance can be dynamically adjusted while maintaining the structural integrity and simplicity of the guide body, allowing the device to adapt to different workpiece dimensions.
Solution Approach 2:
The device allows changing the geometric parameter of the constraint assembly (distance between constraint members) to adapt to different workpiece thicknesses. This parameter adjustment enables the same guide structure to work with various thickness variations without requiring multiple different guide structures.
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 enhances suction precision and efficiency, reduces the need for additional equipment, and allows for safe and easy operation in confined spaces by effectively capturing dust and scraps from both sides of the drill bit, improving workplace safety and operational efficiency.
Implementation Method 1
a suction source (known in itself and not illustrated) connected to the channels (13, 16) of the operating units (11, 12) through a channeling system (41) to allow during use the suction of dust and scraps generated by the drill (A)
Data Source
Figure 1~2
AI summary
The invention relates to an auxiliary device (10) for guiding a portable rotary drill (A) and for the suction of dust and scraps generated by drilling or countersinking operations performed by the drill (A); the auxiliary device (10) comprises: a first and a second operating unit (11, 12), which are configured to be arranged on opposite sides of an element (D) or of a plurality of elements (C, D) to be drilled stacked at least partially with each other and define respectively a first and a second through channel (13, 16) available in use coaxially with each other to be engaged by a drill bit (P) of the drill (A); adjustable distance constraint means (40) connecting the first and second operating units (11, 12) and selectively operable to adjust the distance between the first and second operating units (11, 12) to a value correlated with or corresponding to the thickness of the at least partially stacked element (D) or elements (C, D) to be drilled; and a channeling system (41) connecting the first and second channels (13, 16) with a suction source to allow in use the suction of dust and scraps generated by the drill (A).