Method and device for detecting air tightness of 12 stations of automotive water seal

A technology of air tightness detection and air tightness detection, which is applied in the direction of liquid tightness measurement using liquid/vacuum degree, and by measuring the increase and deceleration rate of fluid, etc., which can solve the problems of manual observation, non-quantitative, low efficiency, etc.

Active Publication Date: 2010-10-13
ZHUZHOU TORCH SPARK PLUG CO LTD
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The four-station artificial bubble method is intuitive but must be observed manually, and has no qua

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
  • Method and device for detecting air tightness of 12 stations of automotive water seal
  • Method and device for detecting air tightness of 12 stations of automotive water seal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0011] The present invention realizes that the collection of leaking air bubbles is transformed into a pressure difference into a pressure difference sensor, and then converted into an electric signal for detection, judgment and sorting.

[0012] As shown in the drawings, the present invention includes an airtight detection lower mold 1, an airtight detection upper mold 3, a leakage gas collection pipe 4, a mold pressing cylinder 5, a frame 6, a micro pressure difference sensor 7, and a touch control panel 8, Wherein, the bottom of frame 6 is provided with a plurality of evenly arranged airtight detection lower dies 1, and directly above the airtight detection lower die 1 is provided with a mold pressing cylinder 5 corresponding to one of them, and the lower part of the mold pressing cylinder 5 is provided with There is an airtight detection u...

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 relates to a method for detecting the air tightness of 12 stations of an automotive water seal. In the method, leaked air bubbles are collected and are converted into differential pressure to enter a differential pressure transducer, and the differential pressure is converted into electric signals for detection, judgment and sorting. The device comprises airtight detection lower dies, airtight detection top dies, a leaked air collecting pipe, die pressing air cylinders, a machine frame, a micro-differential pressure transducer and a touching control screen, wherein a plurality of airtight detection lower dies which are arranged uniformly are arranged at the bottom of the machine frame; the die pressing air cylinders corresponding to the airtight detection lower dies one by one are arranged right above the airtight detection lower dies; the airtight detection top dies corresponding to the airtight detection lower dies are arranged on the lower part of the diepressing air cylinders; and the airtight detection top dies are connected with the micro-differential pressure transducer through the leaked air collecting pipe. In the method and the device, the micro-differential pressure transducer is adopted, the accuracy reaches 9.8 Pa, automatic feeding, automatic detection, automatic judgment, automatic sorting, programmable control and human-computer interface operation can be performed, and the aims of multiple stations, high accuracy, automatic sorting and the reduction of artificial misjudgment are fulfilled.

Description

technical field [0001] The invention relates to an automobile water seal 12-station airtightness detection method and a device thereof, in particular to a method and a device for converting leakage air bubbles into differential pressure detection. Background technique [0002] The water seal of the automobile water pump needs to be 100% tested for air tightness. At present, the main testing methods are air bubble method and special leak tester method. The four-station artificial bubble method is intuitive but must be observed manually, and has no quantification and low efficiency; the special detector is expensive and can only detect a single piece. Contents of the invention [0003] One of the purposes of the present invention is to provide a method for detecting the airtightness of automobile water seals. This method converts the leakage bubble collection into a differential pressure sensor and converts it into an electrical signal for detection, determination, and sorti...

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): G01M3/26
Inventor 朱喜林邹中朋陈谢华康国兴周锡文胡军电
Owner ZHUZHOU TORCH SPARK PLUG CO LTD
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