Automatic Polishing System with 3D Shape Measurement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The conventional robot control technique for polishing requires significant manpower and time for the teaching process, limits process efficiency, and struggles to adapt to variations in the polishing subject's surface, resulting in low finish quality.
Innovation Solution
An automatic polishing system equipped with a three-dimensional shape measuring instrument and a polishing controller that uses three-dimensional shape data to control the polishing robot and tool, eliminating the need for a teaching process and allowing for precise adaptation to surface variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a teaching process is used to program robot motions in advance, then the polishing robot can follow a predetermined movement path, but the process requires significant manpower and time, reducing overall efficiency
Solution Approach 1:
The patent replaces the mechanical teaching process with an optical scanning system. A three-dimensional shape measuring instrument scans the polishing subject face to automatically generate movement path data, eliminating the need for manual teaching operations while maintaining precise robot control
Solution Approach 2:
The system enables self-service by allowing the polishing robot to automatically generate its own movement path data through scanning the workpiece surface. The robot acquires three-dimensional shape data and autonomously determines polishing trajectories without external programming intervention
2Reliability
If a teaching process is used to program robot motions, then the robot can execute polishing tasks, but the significant time required for teaching limits the overall process efficiency
Solution Approach 1:
The system performs preliminary scanning of the polishing subject face before polishing begins. The three-dimensional shape measuring instrument captures surface geometry data in advance, allowing the robot to immediately execute polishing without time-consuming teaching procedures
Solution Approach 2:
Manual teaching operations are replaced by automated optical scanning. The scanning system rapidly acquires surface data and automatically generates motion paths, eliminating the time-intensive manual programming process while maintaining control accuracy
3Ease of operation
If a fixed polishing action is applied to all parts of the polishing subject face, then the process is simple to control, but it cannot adapt to variations in position, shape, area, and height of protruding parts, limiting finish quality
Solution Approach 1:
The system applies local quality by generating customized polishing actions for different regions of the workpiece. Based on scanned three-dimensional data, the robot adjusts polishing parameters such as pressure, speed, and trajectory for each specific location, accommodating variations in surface geometry and protruding features
Solution Approach 2:
The polishing system transitions from static fixed actions to dynamic adaptive actions. The robot continuously adjusts polishing parameters in real-time based on scanned surface data, enabling the system to respond to variations in position, shape, area, and height of different surface features
4Ease of operation
If the same fixed polishing action is applied to all parts, then the control process remains simple, but the finish quality is limited due to inability to respond to surface variations
Solution Approach 1:
The system implements feedback by using scanned three-dimensional shape data to inform and adjust polishing actions. The surface geometry information feeds into the control system, which automatically modifies polishing parameters to achieve optimal finish quality without requiring manual intervention or rework
Data Source
AI summary
A three-dimensional shape measuring instrument is provided for measuring a three-dimensional shape of the polishing subject face. A polishing controller is provided for controlling a polishing robot alone or with a polishing tool, based on three-dimensional shape data of the polishing subject face obtained by the shape measurement by the three-dimensional shape measuring instrument. The polishing tool provides a polishing action on the respective part of the polishing subject face through controlling of the polishing robot alone or with the polishing tool by the polishing controller. By controlling a measuring robot and the three-dimensional shape measuring instrument by the polishing controller, the three-dimensional shape measuring instrument moves to a predetermined measuring position relative to the polishing subject face to measure the three-dimensional shape of the polishing subject face.