Wall Surface Scanning for Reliable Drill Position Selection
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Solution Overview
Problem
Existing methods for determining the drilling position of a drill hole in uneven wall surfaces, such as those found in elevator shafts, are inefficient and lack automation, leading to potential failures in drilling due to irregularities in the surface contour.
Innovation Solution
A method and assembly device that automate the determination of a drilling position by scanning the wall surface, detecting irregularities using predefined rules, and selecting a primary possible support surface and drilling position area to ensure successful drilling, utilizing a control device to execute the steps and a percussion drilling machine for precise hole creation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual determination of drilling position is used on uneven wall surfaces, then flexibility in handling irregularities is maintained, but drilling success rate decreases and time consumption increases
Solution Approach 1:
The patent replaces manual visual inspection and mechanical measurement methods with an optical scanning system that uses light to detect surface irregularities. The scanning component automatically maps the wall surface geometry and identifies suitable drilling positions, eliminating the need for manual assessment while improving both accuracy and speed of drilling position determination
Solution Approach 2:
The system enables self-service by allowing the wall surface itself to provide information about suitable drilling positions. The scanning component detects surface irregularities and the control device automatically processes this data to identify optimal drilling locations, making the system self-sufficient without requiring external manual intervention for position selection
2Productivity
If automated scanning and detection system is implemented, then drilling position determination speed increases, but device complexity increases
Solution Approach 1:
The assembly device incorporates a multi-functional scanning component that can detect various types of surface irregularities (protrusions, recesses, unevenness) using a single optical system. The control device processes multiple parameters (surface geometry, irregularity detection, drilling position calculation) through integrated algorithms, reducing the need for separate specialized components for each function
Solution Approach 2:
The control device serves as an intermediary that bridges the scanning component and the drilling execution. It automatically processes the raw scan data, applies detection rules to identify irregularities, calculates optimal drilling positions, and outputs the results for drilling. This intermediary layer simplifies the overall system by centralizing the complex processing logic in a dedicated control unit rather than distributing complexity across multiple components
Data Source
AI summary
A method and an assembly device for automated determination of a drilling position of a drill hole for a fastener for fastening a component to a possible wall area of a wall, wherein the method steps include: determining a surface contour of the wall area; examining the surface contour and detecting first irregularities in the surface contour using a first detection rule; determining a primary possible support surface area and a primary possible drilling position area that do not have any of the detected first irregularities; examining the surface contour of the primary possible drilling position area and detecting second irregularities in the surface contour using a second detection rule; and determining the drilling position inside the primary possible drilling position area such that the surface contour at the drilling position does not have any of the detected second irregularities.