Construction Robot Tool Alignment for Oblique Surface Work
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Solution Overview
Problem
Construction robots for building elements face challenges in flexibility and cost-effectiveness due to the need for complex mechanical systems to align tools perpendicularly to surfaces, which increases production costs and reduces usability.
Innovation Solution
A construction robot with a mobile platform, a lifting device, and a power tool that can automatically adjust the tool's angle of incidence relative to the surface normal, allowing for oblique alignment and reduced mechanical complexity, enabling flexible use and lower production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the tool is aligned perpendicularly to the surface normal, then the construction task can be performed with standard mechanical systems, but the device complexity and production costs increase
Solution Approach 1:
The patent changes the orientation parameter of the tool from perpendicular (0° angle of incidence) to oblique (non-zero angle of incidence) relative to the surface normal. This parameter change allows the use of simpler mechanical systems without perpendicular alignment mechanisms, thereby reducing device complexity and production costs while still enabling effective construction tasks on building elements
2Productivity
If the mobile platform is moved to reach different working positions, then the robot can access various locations, but the time consumption and labor required increase
Solution Approach 1:
The patent introduces an additional degree of freedom by allowing oblique alignment of the tool. Instead of moving the entire mobile platform horizontally to reach different working positions, the system can now reach positions by adjusting the angle of incidence in a rotational dimension. This dimensional change enables the tool to access working positions without frequent platform repositioning, thereby increasing productivity and reducing time loss
3Length of moving object
If the lifting device has large travel range, then the robot can reach higher positions, but the mechanical complexity and cost increase
Solution Approach 1:
The patent utilizes the angle of incidence parameter to extend the effective reach of the lifting device. By allowing oblique alignment, the tool can access positions that are horizontally displaced from the vertical axis of the lifting device. This parameter change effectively increases the reachable workspace without requiring the lifting device itself to have a larger vertical travel range, thereby maintaining mechanical simplicity while expanding operational capability
Data Source
AI summary
The invention relates to a construction robot (10) for performing work on a building element (12), comprising a mobile platform (14), a lifting device (16), which is arranged on the mobile platform (14), and a power tool (17), which is arranged on the lifting device (16) and in which a tool (18) can be received. It is characterized in that the construction robot (10) is configured to align the tool (18) obliquely to a surface normal (N) of a building element (12) on which work is to be performed, at an angle of incidence (alpha). Furthermore, the invention relates to a method (1000). The invention enables construction tasks to be carried out in a particularly flexible way.