Articulated Arm Surface Marking Device with Sensor
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Solution Overview
Problem
Current surface processing methods require extensive manual measuring and the use of multiple tools, leading to inefficiencies in accuracy and time consumption, particularly in tasks like drilling, sawing, grinding, and routing, due to the need for repeated measurements and additional equipment.
Innovation Solution
A device combining a manually operable articulated arm with a pivotably connected joint, a sensor for measuring the joint setting, and a position indication unit, allowing for precise positioning of a marking or processing tool without prior surface measurement, using a quick-fit connection and decoupling elements to protect sensors and enable accurate, vibration-free operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional measuring tools (tapes, laser meters) are used to mark surfaces before processing, then positioning can be achieved, but multiple measuring steps and additional tools are required, consuming significant time
Solution Approach 1:
The patent combines the measuring function and the processing function into a single integrated device. The articulated arm with sensor measures the surface position, while the tool mounted on the same arm performs the processing operation directly at the measured position, eliminating the need for separate measuring steps and multiple tools.
Solution Approach 2:
The articulated arm device serves multiple functions: it acts as both a measuring instrument (with sensor) and a positioning device for processing operations. The same arm that measures coordinates also positions the tool, making the device universal and eliminating the need for separate measuring and processing equipment.
2Manufacturing precision
If multiple measuring steps are performed to establish tracks for routing or processing, then accurate positioning is achieved, but the process becomes complex and time-consuming
Solution Approach 1:
The device performs preliminary measurement of the surface position using the sensor on the articulated arm, stores the coordinate information, and then uses the same arm to position and execute the processing operation directly at the predetermined position, eliminating the need for multiple intermediate measuring and marking steps.
Solution Approach 2:
The sensor on the articulated arm provides real-time feedback on the position of the surface, allowing the system to calculate and indicate the correct position for processing. This feedback mechanism enables accurate positioning without requiring complex preliminary measuring procedures.
3Measurement precision
If the articulated arm uses a ruby ball stylus for measurement, then coordinate measurement is achieved, but the surface of the object is not altered, requiring additional tools for actual processing
Solution Approach 1:
The patent merges the measurement function (ruby ball stylus) and the processing function (tool) into a single integrated system. The tool is mounted on the same articulated arm that performs measurement, allowing the transition from measurement to processing without changing equipment or requiring additional tools.
Solution Approach 2:
The articulated arm device is designed to be universal, capable of both measuring coordinates with the ruby ball stylus and performing processing operations with the mounted tool. This multi-functionality eliminates the need for separate measuring and processing equipment.
4Measurement precision
If sensors are exposed during articulated arm operation, then position measurement is achieved, but the sensors are vulnerable to damage from vibrations and strong movements generated by processing tools
Solution Approach 1:
The patent segments the articulated arm into distinct functional zones: the measurement section with the sensor and joint mechanisms, and the processing section with the tool. This spatial segmentation allows the sensor to remain protected while the tool performs vibrations-intensive operations.
Solution Approach 2:
The articulated arm structure acts as an intermediary between the sensor and the processing tool. The arm transmits the positional information from the sensor to the tool while physically separating them, so that vibrations from the tool do not directly affect the sensor.
Data Source
AI summary
The invention relates to a device for marking or processing a surface at a predeterminable position, comprising: a marking or processing tool that is operable by hand; a manually operable articulated arm with at least two arm parts that are pivotably connected by a joint; a fitting at one end of the arm for releasably mounting the tool; and a sensor for measuring a setting of the joint; and a position indication unit for computing and indicating a position for the tool using the output signal of the sensor. The invention further relates to a tool and an articulated arm for the device for marking or processing a surface.