End Effector Connector with Integrated Vacuum Pump
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Solution Overview
Problem
Existing robotic picking stations face challenges with the placement of vacuum pumps, which can pose burn hazards, require large and stiff vacuum lines, and are not suitable for environments below 5°C.
Innovation Solution
An end effector connector with an integrated filter assembly and a suction device that generates vacuum pressure, allowing for the entire end effector assembly to be disconnected and reconnected from the robotic arm, reducing downtime and improving maintenance efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the vacuum pump is placed remotely from the robotic arm, then the pump can be positioned in a more accessible location for maintenance, but this requires large and stiff vacuum lines that increase system complexity and energy loss
Solution Approach 1:
The patent combines the vacuum pump with the end effector assembly, integrating components that were previously separate. The vacuum pump is mounted on the end effector connector, merging the vacuum generation function with the gripping mechanism. This eliminates the need for long vacuum lines and reduces system complexity while maintaining ease of maintenance through modular design.
Solution Approach 2:
The patent segments the robotic system into modular components: the robotic arm, the end effector connector with integrated vacuum pump, and the end effector. This segmentation allows the vacuum pump to be positioned with the end effector assembly rather than remotely, reducing vacuum line requirements while maintaining accessibility for maintenance through easy detachment of the modular end effector assembly.
2Loss of energy
If the vacuum pump is integrated with the robotic arm, then vacuum line length is reduced, but the pump becomes difficult to maintain and requires specialist tools
Solution Approach 1:
The vacuum pump is merged with the end effector connector assembly rather than being permanently integrated with the robotic arm. This allows the pump to be positioned close to the suction device (reducing vacuum line length and energy loss) while maintaining ease of maintenance through modular design - the entire end effector assembly can be detached and replaced without requiring specialist tools or disassembly of the robotic arm.
Solution Approach 2:
The system transitions from a static integration where the pump is fixed to the robotic arm to a dynamic modular configuration where the end effector assembly with the pump can be easily attached and detached. This dynamic design allows the pump to be positioned optimally for performance while maintaining ease of repair through simple module replacement.
3Loss of time
If the end effector assembly is made modular and detachable, then maintenance time is reduced, but the connection mechanism between robotic arm and end effector becomes more complex
Solution Approach 1:
The end effector system is segmented into detachable modules: the robotic arm, the end effector connector, and the end effector assembly. This segmentation enables the entire end effector assembly (including the vacuum pump and filter) to be removed and replaced as a single unit, dramatically reducing maintenance time. The connection mechanism, while added in complexity, uses standardized interfaces that simplify the replacement process.
Solution Approach 2:
The modular design allows the entire end effector assembly to be pre-assembled and tested separately, then quickly attached to the robotic arm. This preliminary preparation reduces on-site maintenance time, as faulty assemblies can be replaced without requiring disassembly or repair of individual components during system operation.
4Adaptability or versatility
If a remote vacuum pump is used, then the pump can be serviced independently, but the vacuum lines require larger diameter and reinforcement to prevent collapse
Solution Approach 1:
The vacuum pump is merged with the end effector connector assembly, eliminating the need for separate vacuum lines between the pump and end effector. This integration maintains the ability to service the pump independently through modular replacement of the entire end effector assembly, while eliminating the complexity and reinforcement requirements of long vacuum transmission lines.
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 integrated filter assembly reduces vacuum losses and allows for easier maintenance by enabling the replacement of faulty components without the need for specialist tools, thus minimizing unplanned downtime.
Implementation Method 1
an end effector comprising a suction device to releasably engage an item, in use, with vacuum pressure generated by a vacuum source
Implementation Method 2
the end effector connector comprising an integrated filter assembly for the vacuum source
Data Source
AI summary
An end effector connector arranged to connect a robotic arm and an end effector comprising a suction device to releasably engage an item, in use, with vacuum pressure generated by a vacuum source. The end effector connector comprises an integrated filter assembly for the vacuum source.