Industrial Robot Arm Inclined Plane Center of Gravity
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Solution Overview
Problem
Existing multi-axis robots face challenges in stability, flexibility, and accuracy, particularly when handling heavy objects, due to unbalanced center of gravity and uneven stress distribution.
Innovation Solution
The industrial robot design features a rotating seat with a transmission seat and a first transmission, a first arm with an inclined plane and a reinforcing rib, and a second arm with a pull rod, ensuring balanced center of gravity and stable stress distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the first arm is designed with uniform thickness, then the structure is simpler, but the center of gravity cannot be optimized for stability
Solution Approach 1:
The first arm is designed with an inclined plane structure where the thickness varies along its length. The first end has greater thickness than the second end, creating an asymmetric cross-section. This asymmetric design shifts the center of gravity toward the first end, which is connected to the rotating seat, thereby improving the robot's stability without requiring additional counterweights or complex balancing mechanisms.
Solution Approach 2:
The first arm employs local quality variation through its inclined plane structure. The thickness of the first arm is not uniform but varies locally, with the first end being thicker and the second end being thinner. This local variation in mass distribution allows the center of gravity to be positioned optimally for stability while maintaining a relatively simple overall structure.
2Stability of the object's composition
If the second arm is positioned centrally above the transmission seat, then the robot achieves better balance, but the movable space for the second arm is reduced
Solution Approach 1:
The inclined plane structure of the first arm creates a spatial arrangement where the second arm can be positioned centrally above the transmission seat in the vertical dimension while maintaining adequate movable space in the horizontal dimension. The inclined geometry provides three-dimensional space utilization that resolves the conflict between central positioning for balance and lateral space for movement.
3Stability of the object's composition
If the first arm has larger thickness at the first end, then the connection stability improves, but the weight of the first arm increases
Solution Approach 1:
The first arm uses local quality enhancement only where needed for stability. The thickness is increased at the first end where the connection to the rotating seat requires greater strength and stability, while the second end maintains a thinner profile. This localized mass concentration improves connection stability without significantly increasing the overall weight of the first arm.
Data Source
AI summary
The present application discloses an industrial robot, includes: a rotating seat, which is rotatable, a transmission seat is provided on the rotating seat, and a first transmission is installed in the transmission seat; a first arm, and a second arm connected with the first arm, the first arm is rotatable and includes a first end and a second end arranged from the bottom up, at least a part between the first end and the second end is an inclined plane, and the inclined plane extends from the second end to the first end in an inclined manner, thereby the second arm is substantially located directly above the central line of the transmission seat.