3D Printing Apparatus With Articulated Robot Workpiece Support
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Solution Overview
Problem
Existing three-dimensional object printing apparatuses face challenges in efficiently printing on non-flat surfaces due to the need for manual adjustment of jigs when changing workpieces or printing surfaces, leading to inefficiencies and inaccuracies.
Innovation Solution
A three-dimensional object printing apparatus equipped with a first and second head for ejecting liquids, Z movement mechanisms for vertical movement, an X movement mechanism for horizontal movement, and an articulated robot to support the workpiece, allowing for precise positioning and posture adjustment without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual adjustment of jigs is used to position workpieces on tables, then the apparatus can accommodate different workpiece types, but the operation time and complexity increase significantly when changing workpiece types or printing surfaces
Solution Approach 1:
The system uses vision recognition to automatically detect workpiece positions and surfaces, eliminating the need for manual jig adjustment. The controller self-adapts to different workpiece types by capturing images, identifying printing surfaces, and calculating optimal printing parameters automatically.
Solution Approach 2:
The patent replaces manual mechanical adjustment of jigs with an automated vision-based positioning system. The imaging device captures workpiece images, and the controller automatically calculates printing parameters, substituting human-operated mechanical systems with automated optical-mechanical systems.
2Manufacturing precision
If the workpiece is held stationary on a table, then the printing surface can be accessed, but the mounting surface must be flat and the jig must be manually replaced for different workpiece types
Solution Approach 1:
The system transitions from a static table-based workpiece positioning system to a dynamic articulated robot system. The robot arm can move the workpiece to various positions and orientations, allowing the printing surface to be accessed from different angles without requiring flat mounting surfaces or complex jig replacements.
Solution Approach 2:
The articulated robot serves multiple functions: it positions workpieces, orients printing surfaces toward the printing head, and accommodates various workpiece shapes and sizes. This single multi-functional device replaces the need for multiple specialized jigs for different workpiece types.
3Adaptability or versatility
If the articulated robot moves the workpiece during printing, then positioning flexibility is improved, but vibrations may deteriorate image quality
Solution Approach 1:
The system performs preliminary positioning of the workpiece to an optimal position before printing begins. The controller calculates the best printing position based on workpiece geometry and orientation, then the robot positions the workpiece accordingly before the printing process starts, minimizing vibrations during printing.
Solution Approach 2:
The vision recognition system provides feedback on workpiece position and orientation. The controller uses this feedback to calculate optimal printing parameters and positions, enabling the robot to make precise positioning adjustments while minimizing vibrations that would affect printing quality.
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
Enables high-accuracy printing on complex three-dimensional workpieces by stabilizing the workpiece posture and reducing image quality deterioration caused by robotic vibrations, improving operational accuracy and ease of installation.
Implementation Method 1
a first head that ejects a first liquid from a first nozzle onto a workpiece; a second head that ejects a second liquid from a second nozzle onto the workpiece
Data Source
AI summary
There is provided a three-dimensional object printing apparatus including: a first head that ejects a first liquid from a first nozzle onto a workpiece; a second head that ejects a second liquid from a second nozzle onto the workpiece; a first Z movement mechanism that moves the first head along a Z-axis; a second Z movement mechanism that moves the second head along the Z-axis; an X movement mechanism that moves the first head and the second head along an X-axis intersecting with the Z-axis by collectively moving the first Z movement mechanism and the second z movement mechanism along the X-axis; and an articulated robot that supports the workpiece.