Comprehensive automatic control system for welding process of high-frequency welded pipe

An automatic control system and welding process technology, applied in the field of welded pipe welding, can solve the problems of fast response, lack of popularization and application, and high maintenance costs, and achieve the effects of improving control accuracy, improving welding quality, and simple structure

Inactive Publication Date: 2007-05-30
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since the welded pipe welding process is a nonlinear process with a small lag time and fast response, it is obvious that the above patents cannot meet the control requirements of a fast-response nonlinear system
[0004] In the 1990s, my country introduced welded pipe production lines from abroad. Due to the high price of imported equipment and high maintenance costs, it has not been popularized and applied.

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
  • Comprehensive automatic control system for welding process of high-frequency welded pipe
  • Comprehensive automatic control system for welding process of high-frequency welded pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1 (referring to Fig. 1,3):

[0016] The control system of embodiment 1 includes a temperature detector for detecting welding temperature, a pressure sensor for detecting extrusion force, a speed measuring instrument for detecting welding speed, a steel strip thickness detector, a current / voltage transmitter, a high-speed optical isolation A / D board, industrial computer installed with fuzzy adaptive algorithm with hierarchical structure, high-speed optical isolation D / A board, high-frequency machine; the output terminal of the temperature detector is connected to the input end of the high-speed optical isolation A / D board, pressure sensor, The output ends of the speed measuring instrument and the steel strip thickness detector are respectively connected to the input end of the high-speed optical isolation A / D board through the current / voltage transmitter, and the high-speed optical isolation A / D board is connected with the industrial computer through the bus. ...

Embodiment 2

[0022] Embodiment 2 (referring to Fig. 1,2,4,5):

[0023] The difference between embodiment 2 and embodiment 1 is that the extrusion force adjustment mechanism (see Fig. 1, 2) is adopted, and the extrusion force adjustment mechanism is composed of SCR pressure regulator 14, nozzle type electro-hydraulic servo valve 4, oil motor 6, The squeeze roller locking mechanism is composed of the SCR regulator 14 output terminal connected to the coil of the electromagnet 13 located on the left side of the nozzle 8, the nozzle type electro-hydraulic servo valve 4 is connected with the oil motor 6 through the pipeline, and the oil motor 6 The output shaft is connected with the tension bolt through the gear set 5.

[0024] The control principle of Embodiment 2 is shown in Figures 4 and 5, which is a comprehensive automatic control scheme for the extrusion force independent closed-loop welding process (see Figures 4 and 5):

[0025] (1) The welding temperature T is automatically controlled ...

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 high frequency welding complex automatic control system that comprises thermodetector which detects the welding temperature, pressure sensing device which detects the compressional force, velometer which detects the welding speed, steel band thickness meter, current/voltage transmitter, high-speed light-spacer A/D plate, industrial computer equipped with fuzzy self-adaptive algorithm which possesses hierarchy, high-speed light-spacer D/A plate, high frequency machine. The effect of the invention is that the structure is simple and the cost is low. The industrial computer control system equipped with fuzzy self-adaptive algorithm which possesses hierarchy is adopted, the control precision is increased, and the welding quality is improved.

Description

technical field [0001] The invention relates to a comprehensive automatic control system for a high-frequency welded pipe welding process, which belongs to the technical field of welded pipe welding. Background technique [0002] The Chinese patent separates a "automatic control device for high-frequency welded pipe welding" (notification number: CN20301280U). The burr system, the relay for controlling the oscillating system and the oscillating electron tube constitute the welding automatic control device. The above-mentioned actuators can be two flaw detectors and a sensor, they are in contact with the tube blank, and the oscillating electronic tube is controlled by the relay to work; that is, according to the contact signal, the oscillating electronic tube controls the high-frequency power supply to be turned on or off, so as to achieve automatic control purpose of welding. The automatic deburring system consists of a relay, a deburring knife and a control valve. [000...

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): G05B19/418G05B15/02B23K13/00B23K13/08
CPCY02P90/02
Inventor 吴学礼孟华贾辉然李平陆向辉甄然
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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