Robot Balancing Mechanism Elastic Assembly Gravity Compensation
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Solution Overview
Problem
Industrial robots with complex balancing mechanisms are prone to instability and reduced precision when handling heavy objects, as existing structures are often cumbersome and fail to provide adequate balance and stability.
Innovation Solution
A simplified balancing mechanism comprising a balancing body, a pulling rod assembly, and an elastic assembly that counteracts the gravity moment of the robot arm, enhancing the robot's balance and stability by utilizing a U-shaped bracket, a hollow cylindrical balancing body, and a pair of ears with elastic members to produce a balancing moment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If complex balancing mechanisms are installed at robots, then the balance and stability are improved, but the device complexity increases
Solution Approach 1:
The patent applies the counterweight principle by installing a balancing mechanism that generates a balancing moment opposite to the gravity moment of the robot arm. The balancing mechanism includes a balancing arm connected to the robot arm, and a counterweight member positioned to create a counterbalancing force. This directly addresses the stability improvement while avoiding complex multi-component systems by using a streamlined counterweight configuration.
Solution Approach 2:
The balancing mechanism is designed to serve multiple functions: it provides balance compensation for the robot arm, supports the robot's overall stability, and integrates with the existing robot structure through shared mounting points and connection mechanisms. This multi-functionality reduces the need for separate balancing components, thereby reducing device complexity while maintaining stability improvement.
2Stability of the object's composition
If balancing mechanisms are installed at robots, then the balance and stability are improved, but the precision working in the placement of objects is disturbed
Solution Approach 1:
The balancing mechanism employs dynamic adjustment capabilities where the balancing arm can rotate and adjust its position relative to the robot arm. This dynamic configuration allows the system to maintain optimal balance compensation across different robot arm positions and payload conditions, preventing interference with placement precision while improving overall stability.
Solution Approach 2:
The system utilizes parameter changes in the balancing mechanism's configuration, such as adjusting the counterweight position or balancing arm length, to optimize performance for different operating conditions. This allows the balancing effect to be tuned for maximum stability without introducing excessive movement or instability that would compromise placement precision.
3Device complexity
If simplified balancing mechanisms are used, then the device complexity is reduced, but the balance and stability may be insufficient
Solution Approach 1:
The patent introduces a rotational dimension to the balancing mechanism by allowing the balancing arm to rotate around an axis perpendicular to the robot arm's movement plane. This dimensional addition enables the simplified structure to achieve effective balance compensation through angular adjustment, maintaining stability without requiring complex multi-axle mechanisms.
Solution Approach 2:
The balancing arm serves as an intermediary component that transmits and amplifies the counterbalancing force from the counterweight member to the robot arm. This intermediary mechanism allows a relatively simple counterweight structure to generate sufficient balancing effect by leveraging the mechanical advantage provided by the balancing arm's lever arm configuration.
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 proposed balancing mechanism significantly improves the balance and stability of industrial robots, allowing them to handle heavy objects with precision by providing a counterbalancing force through the elastic assembly, thus enhancing their operational capabilities.
Implementation Method 1
an elastic assembly (78) received in the balancing body (73)... the elastic assembly (78) can produce a balancing moment against the gravity moment of the robot arm (50)
Data Source
AI summary
A balancing mechanism for a robot configured for lifting heavy weights comprises a hollow balancing body comprising an opening; an elastic assembly received in the balancing body and a pulling rod assembly received in the balancing body and hinged to a robot arm of the robot. One end of the pulling rod assembly resists the elastic assembly, and another opposite end of the pulling rod assembly extends out from the balancing body through the opening, the pulling rod assembly is movably assembled with the balancing body via the elastic assembly to make the elastic assembly capable of producing a balancing moment against the gravity moment of the robot arm.