Intelligent riveting monitoring method and system

Abstract

The invention discloses an intelligent riveting monitoring method and an intelligent riveting monitoring system. The intelligent riveting monitoring method comprises the following steps: 1) arranging a guy wire, a drawbar or a laser displacement sensor on a riveter oil cylinder, respectively fixing a body, the guy wire and the like to an oil cylinder and a piston, arranging a piezoelectric type pressure sensor between an oil outlet of a hydraulic pump and an oil inlet tube of a riveter; or arranging a center-passing type shaft pressure sensor on the head part of the riveter; arranging a camera device and a micro computer processor on the surface of the oil cylinder, wherein the electric signal ends of the sensors, the camera and the like are connected with a microcomputer, and an outlet of the microcomputer is connected with an alarm; 2) pre-arranging and inserting a pulling rivet, then, starting the riveter; 3) acquiring images by the camera, online distinguishing program by the microcomputer and judging a riveting position point; 4) after riveting, inputting displacement and pressure measured data; and 5) judging whether displacement, riveting force and the position point are qualified or not, if yes, storing data, otherwise, alarming, thereby realizing automatic identification of the riveting position, quality, system failure and failure alarm. Hidden danger such as missing riveting, missing detection or wrong detection and the like caused by negligence of people are effectively avoided. Various sensors are simple in mounting structure, are convenient to mount, and can be used for riveting monitoring for any pulling rivet.

Description

[0001] (1) Technical field: The present invention relates to the monitoring technology of the fastening and connection process of rivets, which belongs to the riveting category (B21J). (two) background technology: [0002] Blind riveting fastening technology has been widely used in railways, aviation, automobiles, ships and other industries, but in the process of large-scale installation and use, due to the negligence of operators and inspectors, it is very likely that missing riveting, missed inspection or Problems such as wrong detection have brought great security risks to the operation of the system. [0003] The Chinese patent <Monitoring System for Fastener Placement Tools> (ZL200680033854.3) discloses a monitoring system for fastener riveting, which provides a sensor for detecting riveting displacement and riveting force. According to its characteristics, there are also the following deficiencies: 1) Displacement measurement structure: it uses a non-contact stroke...

AI Technical Summary

Problems solved by technology

According to its characteristics, there are also the following deficiencies: 1) Displacement measurement structure: it uses a non-contact stroke sensor 35 to measure the distance between the tapered surface 36 on the adapter cylinder 23 and the sensor, which is an indirect calculation of the riveting displacement, and it needs to be in the riveting tool. Between the rear end piston and the front clamping claw assembly 17, an adapter barrel 23 that moves along with it is added

In short, the patent is not only an indirect measurement, but also has a complex structure

2) The monitoring system can only be used for snap-off blind riveting fasteners, and cannot meet the monitoring requirements of non-tear-off non-blind riveting and other types of blind riveting

3) The monitoring system has a low degree of intelligence and cannot automatically judge the riveting position

4) Failure to achieve traceability after the installation of blind rivets

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