Automotive Primer Robot with Vertical Brush Orientation
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Solution Overview
Problem
Conventional application robots face difficulties in quickly and automatically applying fluid agents to conveyed objects without dripping the agents onto unintended positions, leading to contamination and inefficiencies in automobile assembly lines.
Innovation Solution
An application robot equipped with a position sensor, controller, dripping prevention member, collector, and arm that moves the applicator to detect and apply fluid agents precisely, using a collector to prevent dripping and receive any spills, ensuring accurate application without contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the brush is moved quickly from the side of the car body to the attachment part of the windshield, then the application speed is improved, but the primer may drip from the brush and fall onto other parts causing contamination
Solution Approach 1:
The patent applies preliminary action by positioning the brush vertically with the bristles directed downward toward the car body before making contact. This preliminary positioning ensures that gravity assists in containing the primer within the intended application area, preventing dripping onto other parts during the rapid movement from the side to the windshield attachment part.
Solution Approach 2:
The patent applies local quality by orienting the brush in a specific local configuration - vertically with bristles pointing downward - at the specific location where primer application begins. This localized orientation control ensures that the primer is deposited only on the car body surface directly below the brush, preventing contamination of surrounding areas during high-speed movement.
2Object-affected harmful factors
If manual application operation is performed carefully to prevent primer dripping, then contamination is prevented, but the application process becomes time-consuming
Solution Approach 1:
The patent replaces the mechanical skill-based manual control system with an automated robotic system that uses programmed vertical brush orientation and controlled movement trajectories. This substitution eliminates the need for careful manual operation while maintaining contamination prevention, as the robot consistently executes the vertical brush positioning and controlled movement at high speed without human variability.
Solution Approach 2:
The patent changes the operational parameters by transitioning from slow, careful manual movement to high-speed automated movement with vertically oriented brush. The parameter change in brush orientation (to vertical position) and movement speed (to high velocity) allows the system to achieve both fast application and contamination prevention simultaneously, resolving the time-contamination trade-off.
3Object-affected harmful factors
If the brush is moved slowly to avoid primer dripping, then contamination is prevented, but the application efficiency decreases
Solution Approach 1:
The patent applies dynamics by enabling the robotic arm to execute rapid, controlled movements while maintaining the brush in a vertical orientation. The dynamic system allows high-speed traversal from the car body side to the windshield attachment part while the vertically oriented brush continuously contains the primer, achieving both high productivity and contamination prevention through dynamic control rather than static slow movement.
Data Source
AI summary
An application robot applies a primer to a car body. The application robot includes an applicator for the primer, a camera, a controller, a cap for preventing dripping of the primer, a cap attaching/detaching unit for collecting the cap, and an arm. The camera is moved with the applicator to which the cap is attached, and detects the position of a specific part on the body, the camera being moved by activating the arm. The applicator applies the primer to a position to apply the primer on the body after the cap is detached, the position being specified by the controller. The cap attaching/detaching unit moves the cap holding part toward the body and collects the cap.