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

Filtering method for tracking magnetic control pendular submerged arc welding seam

A submerged arc welding and filter technology, which is applied in the field of welding automatic tracking, can solve the problems of low precision, rough filter filtering, and ineffective filtering, etc., and achieve the effect of improving filtering efficiency and stabilizing precision

Active Publication Date: 2014-09-17
XIANGTAN UNIV
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems of efficiency and technology, the present invention provides a filtering method for seam tracking of magnetically controlled oscillating submerged arc welding, which solves the problem that the above-mentioned filter used for oscillating submerged arc welding can only be relatively rough. The accuracy that can be achieved is low, the required wave frequency cannot be obtained more accurately, and the efficiency of the separate active filter module is low, and the software filtering algorithm has a large judgment range, which cannot perform effective filtering well, and can only be used once Judging or failing to improve the accuracy of the filtering range affects the technical problems of the computing time of the microcomputer

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
  • Filtering method for tracking magnetic control pendular submerged arc welding seam
  • Filtering method for tracking magnetic control pendular submerged arc welding seam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1, the present invention provides a filtering method for seam tracking of magnetron oscillating submerged arc welding, including a passive filter and two multiple feedback Chebyshev active filter joint filters to perform effective filtering sequentially During welding, the clutter collected by the Hall sensor is filtered by the filter, and the obtained waveform A / D is converted into a digital quantity, and the digital quantity transmitted to the microcontroller is accumulated and averaged for multiple judgments; among them, the passive Filter combined with two multiple feedback Chebyshev active filters is composed of an RC passive filter part with two principles Figure 1 The same, but with different parameters of the original multiple feedback Chebyshev active filter, they will complete the high broadband to low narrow frequency filtering. The waveform VIN1 is stabilized by R1, and the high-frequency part is filtered by capacitor C2 to achieve the effect of ...

Embodiment 2

[0014] Embodiment 2, the present invention can also increase the fourth software filtering part, that is, the microcomputer takes 8 data for each operation, calculates the average number after the accumulation, and if it is an ideal state, it will output a section between 0HZ and 4HZ The data. The specific process is as follows: first assign initial values ​​to Y and X, and then perform judgment function calculations, judge △Y and compare it with the set precision (0.004), and output the waveform if it meets the precision requirements, otherwise continue to take 8 to calculate the average value, and judge The size of the average value S and Y, if S is greater than Y, it will be filtered out, if it is less than Y, continue to perform judgment function operations, and then judge the accuracy of △Y, and so on, until the accuracy requirements are met, and the final waveform is output. Due to the first three filtering parts , to improve the filtering efficiency of the fourth part r...

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

A filtering method for tracking a magnetic control pendular submerged arc welding seam aims to solve the technical problems that an existing filter is quite low in filtering accuracy and low in efficiency, the judgment range of a software filtering algorithm is large, efficient filtering cannot be better achieved, only one judgment can be conducted, or the filtering range accuracy cannot be improved and thus the operating time of a microcomputer is affected. According to the key points of the technical scheme, filtering is conducted effectively through a hardware filter with three-level accuracy and a bridge rectifier circuit in sequence, the first level of the hardware filter with three-level accuracy is a passive RC filtering circuit with the accuracy level being 10 KHZ, the second level of the hardware filter with three-level accuracy is a front end multi-feedback Chebyshev filtering circuit with the accuracy level being 100 HZ, and the third level of the hardware filter with three-level accuracy is a rear end multi-feedback Chebyshev filtering circuit with the accuracy level being 10 HZ; the bridge rectifier circuit converts the trough of the sine wave output by the hardware filter into the crest and converts the crest into digital quantity through A / D; the digital quantities transmitted into a single-chip microcomputer are accumulated, averaged and judged many times. The filtering method is mainly used for automatic welding tracking.

Description

technical field [0001] The invention relates to a filtering method for seam tracking of magnetically controlled oscillating submerged arc welding, which is applied to the field of automatic welding tracking. Background technique [0002] At present, the filter used for oscillating submerged arc welding in the prior art can only perform relatively rough filtering, and the precision that can be achieved is low. The required wave frequency cannot be obtained more accurately, and the efficiency of a single active filter module is low and the precision is poor. The software filtering algorithm has a large judgment range, cannot perform effective filtering well, and can only judge once or cannot improve the accuracy of the filtering range, which affects the computing time of the microcomputer. Contents of the invention [0003] Aiming at the problems of efficiency and technology, the present invention provides a filtering method for seam tracking of magnetically controlled osci...

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): H03H21/00H03H17/02
Inventor 洪波阮扬戴江平
Owner XIANGTAN 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