Multi-DOF Transmission Platform With Staggered Modular Assembly
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Solution Overview
Problem
Existing medical devices face complex assembly methods, inconsistent assembly quality, and insufficient stability due to difficult friction force adjustment, leading to loosening and reduced operational precision.
Innovation Solution
A transmission device with a platform having multiple degrees of freedom, featuring a main bracket with staggered recesses and mounting surfaces, allowing for a staggered arrangement of mechanical arm and transmission assemblies, and adjustable friction forces through washers and calibrated assembly processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If components are assembled onto a metal frame using traditional methods, then the device can be completed, but the assembly method becomes complex and maintenance requires disassembly of the entire structure
Solution Approach 1:
The device is divided into modular components (shaft motor module, coupler module, parallel manipulator module) that can be independently assembled and disassembled. The base plate is segmented with multiple recesses that accommodate different components, allowing partial disassembly for maintenance without requiring complete structure breakdown.
Solution Approach 2:
The base plate serves multiple functions: it provides structural support, contains recesses for mounting various components, and enables modular assembly. The standardized recess design allows different components to be mounted on the same base plate, simplifying the overall assembly process and maintaining consistency across different configurations.
2Stability of the object's composition
If components are fixed together in a rigid structure, then structural stability is achieved, but friction force cannot be adjusted leading to loosening during operation
Solution Approach 1:
The parallel manipulator incorporates adjustable friction mechanisms that allow the friction force to be modified during operation. This dynamic adjustment capability enables the system to maintain optimal stability under varying operational conditions while preventing loosening through controlled friction levels.
Solution Approach 2:
The friction force parameter can be adjusted through the parallel manipulator's mechanism, allowing optimization of the friction level based on operational requirements. This parameter adjustment maintains structural stability while adapting to different operational scenarios, preventing both loosening and excessive rigidity.
3Productivity
If traditional assembly methods are used, then the device can be manufactured, but assembly quality is inconsistent and operational precision is reduced
Solution Approach 1:
By segmenting the device into standardized modular components with consistent interface designs (recesses and mounting surfaces), the assembly process becomes more controlled and repeatable. This modular approach improves assembly quality consistency while maintaining efficient production throughput.
Data Source
AI summary
A transmission device having a platform with multiple degrees of freedom includes a main bracket, a pedestal, a mobile platform, a plurality of transmission assemblies, and a plurality of motor assemblies. The main bracket includes a base plate and a base column. The base plate includes a plurality of recesses formed on a side thereof, the base column has a plurality of mounting surfaces, and the recesses and the mounting surfaces are arranged in a staggered manner. The mobile platform includes a plurality of mechanical arm assemblies, and the mechanical arm assemblies are distributed in the plurality of recesses. The plurality of transmission assemblies are distributed on the mounting surfaces. Each of the transmission assemblies is connected to an adjacent one of the mechanical arm assemblies. The mechanical arm assemblies and the transmission assemblies are arranged in a staggered manner.