Multi-camera combination based method for online measuring engine cylinder combination face hole group

An engine cylinder block and measurement method technology, applied in the field of visual inspection, can solve problems such as difficulty in meeting the automatic, fast, and online inspection requirements of production lines, and the limitation of inspection efficiency.

Inactive Publication Date: 2010-09-08
TIANJIN UNIV
View PDF4 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the combination of the engine block and face group on the production line is mostly measured by a three-coordinate machine. Due to the limitation of detection e

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
  • Multi-camera combination based method for online measuring engine cylinder combination face hole group
  • Multi-camera combination based method for online measuring engine cylinder combination face hole group
  • Multi-camera combination based method for online measuring engine cylinder combination face hole group

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The measurement system designed by the present invention is composed of a linear array CCD measuring camera, an area array CCD positioning camera, a high-precision mechanical guide rail, a stepping motor drive system, a grating ruler, an LED lighting system, and a data processing computer. After the engine is positioned, the position of the two positioning holes on the bottom surface of the engine block is measured by the area array CCD positioning camera. The measurement coordinate system is established based on the two positioning holes on the bottom of the engine, and the linear array CCD measurement camera cooperates with the high-precision mechanical guide rail driven by the stepping motor to perform mechanical scanning to realize the image acquisition of the round hole of the engine block combined with the face group. The high-precision grating sensor performs synchronous measurement on the position of the line array CCD acquisition line, and finally obtains the di...

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 belongs to the vision measurement technology and machine element detection, in particular to a multi-camera combination based method for online measuring an engine cylinder combination face hole group. Aiming to design a scheme for quick measuring an engine cylinder combination face hole group based on multiple vision sensors combination and meet the detection requirements of intelligence, quick speed, high precision and low cost in production lines, the invention adopts the technical scheme that two locating holes at the bottom of an engine are taken as a standard to establish a measurement coordinate system, a measurement camera is matched with a high-precision mechanical guide rail driven by a stepping motor for carrying out mechanical scanning to realize circular hole image acquisition of the engine cylinder combination face hole group, meanwhile, a high-precision grating sensor on a grating ruler is used for synchronously measuring the position of a measurement camera acquisition line and at last the diameter and position measurement results of the engine cylinder combination face hole group relative to the measurement coordinate system are obtained by computer digital image processing and space coordinate conversion. The invention is mainly applied to machine element measurement.

Description

technical field [0001] The invention belongs to visual detection technology and mechanical part detection. Specifically, the present invention relates to an online measurement method of engine cylinder combined face group based on multi-camera combination. Background technique [0002] The engine block is the positioning part of most parts in the engine. The combined face group measurements of the engine block determine the overall coupling effect of the engine. The engine block joint face group is mainly divided into two categories: cylinder bore, positioning hole and coupling hole. The size, shape and position of these holes are subject to tight tolerances and are decisive for the quality of the final product. [0003] At present, the combination of engine cylinder block and face group on the production line is mostly measured by a three-coordinate machine. Due to the limitation of detection efficiency, only a small batch of random inspection can be carried out, which i...

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): G01B11/12G01B11/00
Inventor 孙长库石永强王鹏段红旭
Owner TIANJIN 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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap