Paint System Robot Base Positioning for Arm Clearance
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Solution Overview
Problem
Existing paint systems with multiple robots along a transfer path face challenges in reducing robot size while maintaining or increasing the movable range of robot arms, leading to increased equipment and running costs, and difficulties in painting lower regions effectively.
Innovation Solution
A paint system configuration where the first paint robot paints the upper region and the second paint robot paints the lower region, with the first robot base positioned closer to the transfer path, allowing the second robot arm to pass under the first robot base, thereby reducing the length of the first robot arm and increasing the movable range of the second robot arm, while maintaining efficient painting of lower regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the robot arm is elongated to reach the middle portion of the upper surface, then the painting coverage is improved, but the robot size and system cost increase
Solution Approach 1:
The patent transitions from a single-side robot arrangement to a multi-dimensional configuration where robots are positioned at different heights (vertical dimension) and lateral distances (horizontal dimension) from the transfer path. This allows the first robot to paint the upper surface from a higher position while the second robot paints the side surface from a lower position, eliminating the need for excessively long robot arms while maintaining comprehensive painting coverage.
2Length of moving object
If the robot base is positioned close to the transfer path, then the robot arm length is reduced, but the movable range of other robot arms is limited
Solution Approach 1:
The patent resolves the spatial conflict by utilizing the vertical dimension in addition to the horizontal dimension. The first robot base is positioned at a first lateral distance with a first arrangement height, while the second robot base is positioned at a second lateral distance with a second arrangement height. This multi-dimensional positioning allows both robots to have adequate movable ranges without requiring excessive robot arm lengths, as each robot operates in its own spatial zone.
3Area of stationary object
If multiple paint robots are disposed along the transfer path, then comprehensive painting coverage is achieved, but the system size and equipment cost increase
Solution Approach 1:
The patent efficiently utilizes three-dimensional space by positioning robots at different heights and lateral distances from the transfer path. This vertical and lateral stratification allows multiple robots to operate simultaneously without requiring excessive horizontal spacing, thereby achieving comprehensive painting coverage while minimizing the overall system footprint and reducing equipment costs.
Data Source
AI summary
A paint system includes a paint unit having a first paint robot and a second paint robot. The first paint robot includes a first robot base and a first robot arm operably mounted on the first robot base. The second paint robot includes a second robot base and a second robot arm operably mounted on the second robot base. When a virtual plane extending in a vertical direction and along a direction of relative movement between an object to be painted and the paint unit is defined as a reference plane, a distance between the first robot base and the reference plane is set to be shorter than a distance between the second robot base and the reference plane. A passage range allowing passage of the second robot arm is provided under the first robot base.