Robot Arm Belt Drive for Quick Wrist Detachment
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Solution Overview
Problem
Existing robots face difficulties in the efficient detachment and reattachment of wrist members during maintenance, as the process is cumbersome and requires disassembly and reassembly of multiple components, leading to increased operational time and potential inaccuracies.
Innovation Solution
The robot design incorporates a proximal-end-side arm with a first motor, speed reducer, pulley, and belt system that allows for the transmission of rotational force to distal-end-side arms, enabling easy detachment and reattachment of the finger unit without removing the motor, speed reducer, or belt from the arm, simplifying the attachment and detachment process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the wrist member is detached from the second arm for maintenance, then maintenance work can be performed, but the attachment and detachment operation becomes troublesome and time-consuming
Solution Approach 1:
The robot arm is divided into separable segments (first arm, second arm, wrist member) with standardized connection interfaces. The driving units (motors, speed reducers, belts) are integrated into the proximal arm segment, allowing the distal wrist member to be detached independently without requiring disassembly of the driving mechanisms, thus enabling quick maintenance access while minimizing detachment time
Solution Approach 2:
The driving units (motor, speed reducer, belt) are extracted from the wrist member and relocated to the proximal-end-side arm. This extraction allows the wrist member to be detached as a simple, lightweight component without carrying complex driving mechanisms, significantly reducing the complexity and time of attachment and detachment operations while maintaining full maintenance accessibility
2Ease of operation
If the driving units are integrated into the proximal-end-side arm, then the wrist member can be easily detached, but the structure becomes more complex
Solution Approach 1:
Multiple driving units (motor, speed reducer, belt mechanism) are merged into a single integrated assembly mounted on the proximal-end-side arm. This consolidation reduces the number of separate components and connection points, simplifying the overall attachment and detachment operation while the internal integration manages the structural complexity of the driving system
Solution Approach 2:
A standardized connection interface acts as an intermediary between the proximal arm segment (containing driving units) and the distal wrist member. This interface standardizes the coupling and decoupling operations, making detachment simple and straightforward while allowing the internal structure of each segment to remain complex and optimized for its specific function
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 design reduces the time and complexity of attachment and detachment operations, improves assembly accuracy, and simplifies the management of wires, enhancing maintenance efficiency and reducing operational errors.
Implementation Method 1
a first belt configured to transmit, from the first speed reducer to the first pulley, the rotational force output from the first speed reducer
Implementation Method 2
a first pulley configured to transmit, to the first distal-end-side arm, the rotational force output from the first speed reducer
Data Source
AI summary
A robot includes a robot arm including a proximal-end-side arm and a first distal-end-side arm that is turnable with respect to the proximal-end-side arm and coupled further on a distal end side than the proximal-end-side arm. The proximal-end-side arm includes a first motor configured to drive the first distal-end-side arm, a first speed reducer configured to reduce rotating speed of the first motor and output a rotational force, a first pulley configured to transmit, to the first distal-end-side arm, the rotational force output from the first speed reducer, and a first belt configured to transmit, from the first speed reducer to the first pulley, the rotational force output from the first speed reducer.