Robot Joint Module Assembly for Independent Drive and Reducer Testing
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Solution Overview
Problem
The existing robot arm joint modules lack independent performance testing of the driving assembly, leading to reduced reliability and increased production costs due to the integration of the driving assembly with the speed reduction assembly, making separate testing and maintenance difficult.
Innovation Solution
The joint module design includes separate output and input shafts for the driving and speed reduction assemblies, respectively, allowing for detachable connection via fasteners, enabling independent testing and facilitating maintenance, which reduces vibration and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the driving assembly is fixed on the input shaft of the speed reduction assembly (integrated design), then the structure is compact, but independent performance testing of the driving assembly becomes difficult and reliability cannot be ensured
Solution Approach 1:
The patent divides the joint module into separable components: the driving assembly and the speed reduction assembly are connected through a detachable connection structure involving the output shaft, input shaft, and fastening components. This segmentation allows independent testing and maintenance of each assembly while maintaining operational integration when assembled.
2Ease of manufacture
If the driving assembly is integrated with the speed reduction assembly, then assembly is simplified, but separate performance testing cannot be carried out and production efficiency decreases
Solution Approach 1:
The driving assembly and speed reduction assembly are designed as separate modules that can be independently manufactured and tested, then quickly assembled using the detachable connection structure. This enables parallel production and testing processes, improving overall manufacturing efficiency.
Solution Approach 2:
The driving assembly can be pre-assembled and tested independently before being integrated with the speed reduction assembly. This preliminary testing and assembly of sub-components streamlines the final assembly process and reduces rework.
3Stability of the object's composition
If the driving assembly is fixed on the input shaft, then the structure is stable, but maintenance becomes difficult and assembly/disassembly causes damage
Solution Approach 1:
The connection between the driving assembly and speed reduction assembly transitions from a fixed permanent connection to a dynamic detachable connection. The fastening structure allows the assemblies to be securely connected during operation for stability, and easily separated for maintenance when needed.
Data Source
AI summary
A joint module is provided which includes a housing, a driving assembly, a speed reduction assembly, a first fastener, a second fastener and a third fastener. The driving assembly includes an output shaft, a lower bearing seat and a lower bearing, an inner ring and an outer ring of the lower bearing are respectively connected with the output shaft and the lower bearing seat. The first fastener fixes the lower bearing seat on the housing, and the second fastener fixes the speed reduction assembly on the housing. The third fastener fixes the input shaft of the speed reduction assembly to the output shaft. The output shaft of the driving assembly and the input shaft of the speed reduction assembly are separate structural members, which not only allows the driving assembly and the speed reduction assembly to be tested separately before assembly, but also facilitates the later maintenance.