Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Target-free automatic measuring device and method for axis pose of tubular part

A technology for automatic measurement and cylindrical parts, applied in the field of precision measurement, can solve problems such as low precision, inability to eliminate interference, multiple solutions to projection relations, etc., and achieve the effects of improving measurement accuracy, good equipment stability, and large data redundancy

Active Publication Date: 2018-09-14
XIDIAN UNIV
View PDF8 Cites 35 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this method, the interference to the measurement results due to sensor accuracy, vibration and other issues cannot be ruled out. Under this premise, for incomplete elliptical arcs with central angles less than 180°, small measurement noise can cause fitting results Larger deviation, so the method of estimating the axis of the measured cylindrical profile through the geometric parameters of a section is less accurate, and the problem of multiple solutions may occur due to the uncertain projection relationship

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
  • Target-free automatic measuring device and method for axis pose of tubular part
  • Target-free automatic measuring device and method for axis pose of tubular part
  • Target-free automatic measuring device and method for axis pose of tubular part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] Below in conjunction with accompanying drawing and specific embodiment, the present invention is described in further detail:

[0044] refer to figure 1 , a target-free automatic measuring device for the axial position and posture of a cylinder, including a base 1 , a supporting unit 2 , a measuring unit 3 and a control computer 4 .

[0045] Wherein, the support unit 2 includes a support guide rail 21 , a support tray 22 , a transfer screw 23 , and a transfer motor 24 . Both sides of the upper surface of the supporting guide rail 21 are provided with two parallel guide rails, and the lower part is fixed on the base 1 through the mounting seat. The lower surface of the supporting tray 22 is erected on the supporting rail 21 through the rail slider, and the measured cylindrical piece is placed on the upper surface, so that the cylindrical piece can slide along the supporting rail 21 . A transfer lead screw 23 is arranged inside the support guide rail, the axis of the le...

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 target-free automatic measuring device and method for axis pose of a tubular part and aims to improve the measurement accuracy of the pose of the tubular part on the premise of automation, non-contact and no target. The method comprises implementation steps as follows: establishing a measurement coordinate system according to the measuring device; controlling a computer toacquire multiple section profiles of the tubular part located on a parallel section through a laser profile sensor; controlling the computer to calculate fitting points of axis of the tubular part and fitting points of busbars on each section; controlling the computer to calculate the pitch angle and the deflection angle of the axis of the tubular part; controlling the computer to calculate comprehensive fitting points of the axis of the tubular part, performing spatial linear fitting on these comprehensive fitting points to obtain pose parameters of the axis of the tubular part. The measuring device and method can be applied to precise measurement of the axis poses of tubular parts in an automatic tubular part assembly process to facilitate adjustment by a pose adjusting mechanism.

Description

technical field [0001] The invention belongs to the technical field of precision measurement, and relates to a device and method for automatic measurement of the axis position and posture of a cylindrical part, which can be used for automatic measurement of the position and posture of the cylindrical part in the production process. Background technique [0002] Cylindrical parts are one of the most basic parts in industrial production. When upgrading the automation of spacecraft assembly, pipeline welding and other processes, it is often necessary to accurately and automatically measure the position and orientation of the cylindrical part axis and adjust it . Since the measurement accuracy will directly affect the accuracy of subsequent processing, there is a high requirement for the precision of the measurement process. At the same time, in order to meet the needs of unmanned chemical factories in the future, the new measurement technology should get rid of the dependence ...

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
IPC IPC(8): G01B11/00
CPCG01B11/002
Inventor 仇原鹰张解语芦顺利段学超盛英赵泽宁博程培涛米建伟
Owner XIDIAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap 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