Cross Laser TCP Calibration for Multi-Brand Robotic Arms
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Solution Overview
Problem
Conventional calibration systems for robotic arms from different manufacturers are not interoperable, requiring adjustments for communication protocols and increasing calibration costs due to the need for manufacturer-specific calibrators.
Innovation Solution
A cross laser calibration device and system that includes a coordinate orifice plate, cross laser sensors, and a rotational and translational movement mechanism, driven by motors and actuators, allowing for the calibration of the tool center point without requiring two-way communication with the robotic arm's controller, enabling compatibility across different manufacturers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional manufacturer-specific calibrators are used for robotic arms, then calibration accuracy for that specific manufacturer is maintained, but calibration cost increases and the calibrator cannot be shared across different manufacturers
Solution Approach 1:
The calibration device is designed with universal functionality to work with robotic arms from different manufacturers. The processing unit receives control signals through multiple communication protocols (first protocol for first manufacturer, second protocol for second manufacturer), allowing a single device to serve multiple manufacturers without requiring manufacturer-specific adjustments.
Solution Approach 2:
The device changes its communication parameters adaptively based on the robotic arm manufacturer. The processing unit switches between different communication protocols depending on which manufacturer's robotic arm is being calibrated, enabling the same hardware to operate with different communication standards without physical modification.
2Productivity
If conventional calibrators require two-way communication with the robotic arm controller, then manufacturer-specific calibration accuracy is achieved, but calibration efficiency decreases due to protocol adjustments
Solution Approach 1:
The device pre-configures multiple communication protocol interfaces in advance. When a robotic arm from a specific manufacturer needs calibration, the processing unit automatically selects and switches to the corresponding pre-configured protocol, eliminating the need for manual protocol adjustment and reducing calibration preparation time.
Solution Approach 2:
The communication interface of the processing unit is dynamic and adaptable, automatically adjusting the communication protocol based on the detected robotic arm manufacturer. This dynamic switching capability allows the device to maintain high calibration efficiency across different manufacturers without manual intervention for protocol changes.
3Reliability
If multiple manufacturer-specific calibrators are maintained, then each robotic arm can be calibrated accurately, but calibration cost increases
Solution Approach 1:
Instead of maintaining separate calibrators for each manufacturer, the invention uses a single universal calibration device with a processing unit that supports multiple communication protocols. This multi-functional approach maintains calibration accuracy for different manufacturers while reducing the total number of calibrators needed from one per manufacturer to just one universal device.
Solution Approach 2:
The invention merges the functionality of multiple manufacturer-specific calibrators into a single unified device. The processing unit combines support for multiple communication protocols within one system, consolidating what would have been separate devices into one integrated solution that reduces overall system complexity and cost.
Data Source
AI summary
A cross laser calibration device used to calibrate a tool center point is provided. The calibration device includes a coordinate orifice plate, a set of cross laser sensors and a rotational and translational movement mechanism. The coordinate orifice plate has an orifice center point. The set of cross laser sensors is arranged on the coordinate orifice plate to generate cross laser lines intersecting at the orifice center point. The set of cross laser sensors is driven by the second motor to rotate around the center point of the second motor, wherein the orifice center point has an off-axis setting relative to the center point of the second motor.