Collaborative Robot Joint Housing Lattice for Weight and Heat
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Solution Overview
Problem
The challenge is to achieve lightweight optimization of collaborative robot joints while maintaining structural integrity and improving heat dissipation.
Innovation Solution
The joint housing incorporates a lattice structure made of additive manufacturing, with uniformly distributed lattice units, such as tetrahedral or hexahedral polyhedrons, and filled with a thermally conductive medium, enhancing thermal conductivity and reducing weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a completely solid housing is used, then structural integrity is maintained, but weight increases
Solution Approach 1:
The housing material is segmented into a lattice structure comprising multiple lattice structure units distributed throughout the material. This segmentation creates a porous framework that reduces weight while maintaining structural integrity through the distributed geometric patterns.
Solution Approach 2:
The housing utilizes a porous lattice structure where lattice structure units are distributed within the material. This porous configuration reduces density and weight while the interconnected lattice framework maintains mechanical strength and structural stability.
2Weight of moving object
If lattice structure units are used to reduce weight, then heat dissipation capability deteriorates
Solution Approach 1:
Different regions of the housing material exhibit different lattice structures. The first lattice structure units are positioned in a first region while second lattice structure units are positioned in a second region, allowing optimization of heat dissipation in specific areas while maintaining weight reduction overall.
Solution Approach 2:
The housing combines lattice structure units with thermally conductive medium to create a composite material system. The lattice framework provides structural support and weight reduction, while the thermally conductive medium fills the porous spaces to enhance heat dissipation pathways.
3Weight of moving object
If lattice structure units are uniformly distributed, then manufacturing complexity increases
Solution Approach 1:
The lattice structure units are defined by adjustable parameters including size, shape, and distribution patterns. By parameterizing the lattice configuration, the structure can be optimized for weight reduction while controlling manufacturing complexity through systematic variation of geometric parameters.
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
This approach results in a significant reduction of the joint's weight by at least 30% compared to a solid structure, while improving heat dissipation and maintaining structural rigidity, thus enhancing the performance and market competitiveness of collaborative robots.
Implementation Method 1
a thermally conductive medium is filled in each lattice structure unit. In embodiments of the present invention, the thermally conductive medium is filled in each lattice structure unit, so that the thermal conductivity of the housing is improved.
Data Source
AI summary
A housing of a joint of a collaborative robot, where at least part of the material of the housing is configured to include a plurality of lattice structure units. Since the at least part of the material of the housing is configured to include the plurality of lattice structure units, the weight of the joint may be reduced with respect to a completely solid housing. Further disclosed is the joint of the collaborative robot.