Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Vision-based full-closed-loop system of numerically-controlled machine tool

A CNC machine tool, full-closed-loop technology, applied in the direction of general control system, control/regulation system, digital control, etc., can solve the problems of no control of tool cutting results, no cutting process into control, etc., to improve processing quality and processing accuracy , the effect of high degree of automation

Active Publication Date: 2018-05-04
INST OF LASER & OPTOELECTRONICS INTELLIGENT MFG WENZHOU UNIV
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]The CNC machine tool cuts the material on the blank to match the design goal, but no matter whether it is a semi-closed loop or a closed loop, it does not control the cutting result of the tool on the blank. The cutting process is not included in the closed loop of control

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Vision-based full-closed-loop system of numerically-controlled machine tool
  • Vision-based full-closed-loop system of numerically-controlled machine tool
  • Vision-based full-closed-loop system of numerically-controlled machine tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] For CNC milling machine, the present invention is implemented as follows:

[0063] Such as Figure 1-5 As shown, a vision-based full-closed-loop system for CNC machine tools, the basic idea is to measure the three-dimensional shape of parts in real-time during the machining process to improve the machining accuracy, specifically including the semi-closed-loop controlled workbench and the full-closed-loop measurement unit , Analytical calculation unit, toolholders and tools for processing.

[0064] The measurement unit 4 is as attached figure 2 , in the shape of a flange, installed on the side of the tool holder 1 and on the handle of the tool with rolling bearings, does not rotate with the tool 2, but moves with the tool 2, and the measuring unit 4 is equipped with several pairs of laser emitters 3 and cameras 5 at equal radial intervals , the camera 5 is located on the outer large ring, and the laser transmitter 3 is located on the inner small ring. In order to impr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a vision-based full-closed-loop system of a numerically-controlled machine tool. The vision-based full-closed-loop system includes a semi-closed-loop controlled workbench, a measuring unit, an analysis and calculation unit, a cutter holder for machining and a cutter. The measuring unit is in a flange shape and is mounted beside the cutter holder and on a knife handle. The analysis and calculation unit forms the full-closed-loop system together with the original semi-closed-loop controlled workbench. The analysis and calculation unit calculates the shape of the surface ofa workpiece according to the triangle rule in accordance with the position and shape of laser rays collected by a camera. A machining method for the vision-based full-closed-loop system of the numerically-controlled machine tool is also introduced. One-time machining is completed, and the method includes the steps of scanning of the workbench and a clamp and modeling, scanning of blank and modeling, machining and machining ending. According to the vision-based full-closed-loop system of a numerically-controlled machine tool and the machining method, the effect of machining motion after the cutter moves every time can be measured in real time, the shape in the machining process is reconstructed, the processed surface quality such as roughness is also incorporated into the full-closed-loopcontrol system, and the machining accuracy can be improved in multiples.

Description

technical field [0001] The invention relates to the technical field of numerical control machine tool control, and more specifically, relates to a vision-based fully closed-loop system of a numerical control machine tool. Background technique [0002] CNC machine tools are divided into three control modes: open loop, semi-closed loop and closed loop. Open-loop CNC machine tools have no feedback and low precision; semi-closed-loop CNC machine tools use pulse encoders on the motor as feedback components, which can control the speed of the motor with high precision; closed-loop CNC machine tools use grating rulers as position feedback components, with the highest accuracy. [0003] The CNC machine tool cuts the material on the blank with a tool to match the design goal, but whether it is a semi-closed loop or a closed loop, it does not control the cutting result of the tool on the blank, and the cutting process is not included in the closed loop of control. If the cutting proc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/19
CPCG05B19/19G05B2219/35349Y02P70/10
Inventor 罗胜徐玲杰
Owner INST OF LASER & OPTOELECTRONICS INTELLIGENT MFG WENZHOU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com