CN104197886B - The device and method of arc welding fusion penetration information and welding data collecting synchronizing information - Google Patents
The device and method of arc welding fusion penetration information and welding data collecting synchronizing information Download PDFInfo
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- CN104197886B CN104197886B CN201410407882.3A CN201410407882A CN104197886B CN 104197886 B CN104197886 B CN 104197886B CN 201410407882 A CN201410407882 A CN 201410407882A CN 104197886 B CN104197886 B CN 104197886B
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Abstract
The device and method of a kind of arc welding fusion penetration information and welding data collecting synchronizing information, described device are made up of welding torch, scriber, magnetic valve, air pump, controller and marking-off plate；The scriber is formed by connecting by cylinder, marking-off pin fixture and marking-off pin from top to bottom successively；The cylinder is fixedly connected on welding torch, and air pump, magnetic valve, cylinder are linked to be gas circuit by tracheae；Methods described is that the control signal of controller is input into solenoid valve control end, realizes that its gas circuit switches, changes the direction of motion of marking-off pin, control its cut on marking-off plate；Postwelding determines workpiece in beginning and end data acquiring location by the mark on marking-off plate, and along welding direction at the maximum fusion penetration position to work piece cut, polishing, corrosion, identification melt run are simultaneously fitted, so as to generate the fusion penetration information synchronous with gathered data.The present invention for offline quick measurement weld penetration information, and with welding data collecting synchronizing information, can conveniently carry out the modeling and control research with regard to fusion penetration.
Description
Technical field
The present invention relates to a kind of arc welding fusion penetration information and the device and method of welding data collecting synchronizing information, can be used for
Offline quick measurement weld penetration information, and it is synchronous with welding data collecting information such as welding current, voltage signal, belong to weldering
Connect automatic field.
Background technology
In arc welding process, fusion penetration be reflect welding quality an important parameter, insufficient (incomplete) penetration or it is lack of penetration be cause weldering
The most hazards of structural failure are connect, therefore, fusion penetration is typically arc welding control technology final goal to be paid close attention to.Except one
A little occasions can observe back bead width, and with back bead width substituting outside fusion penetration, fusion penetration is all difficult to observe.Therefore,
This also models to fusion penetration and controls research and brings difficulty.This area is typically using the section cutting workpiece in vertical welding direction at present
Method, so as to observe fusion penetration and appearance of weld.But when electrical quantity changes, just it is difficult to obtain moment change with limited section
Fusion penetration information, and fusion penetration information now is also difficult to affect fusion penetration measurand corresponding with electrical quantity etc..Therefore, research and develop a kind of
Both weld penetration information can have quickly been measured offline, can make the information such as fusion penetration information and other such as arc voltages, electric current same again
The arc welding fusion penetration information of step and the device and method of welding data collecting synchronizing information, it has also become the task of top priority of this area,
Its meaning and effect are very great.
The content of the invention
The invention aims to solve the technical problem that above-mentioned prior art is present, technical need is met, for this
By cutting the fusion penetration that workpiece is obtained, field postwelding is difficult to other welding currents, voltage etc. that observation information is synchronous asks
Topic, there is provided a kind of both quickly to have measured weld penetration information offline, can make fusion penetration information and other such as arc voltages, electricity again
The arc welding fusion penetration information of the synchronizing informations such as stream and the device and method of welding data collecting synchronizing information.
In order to achieve the above object, present invention solution technical problem is adopted the technical scheme that：
The device of a kind of arc welding fusion penetration information and welding data collecting synchronizing information is by welding torch, scriber, magnetic valve, gas
Pump, control signal, marking-off plate are constituted；The scriber is from top to bottom successively by the connection of cylinder, marking-off pin fixture and marking-off pin
Into；The cylinder is fixedly connected on the welding torch；The air pump, magnetic valve, cylinder are connected to form gas circuit by tracheae, described
The control signal of controller is input into the solenoid valve control end, realizes that its gas circuit switches, and the marking-off plate is perpendicular to welding torch side
It is to placement, parallel with workpiece place plane.
Magnetic valve described above is two-position five-way electromagnetic valve of gas circuit.
Scriber described above when mounted, line needle tip and projected position of the welding arc center in welding direction
It is identical.
In order to achieve the above object, the present invention solves another technical scheme for being taken of technical problem is：
A kind of arc welding fusion penetration information and the method for welding data collecting synchronizing information, comprise the following steps：
(1) air pump is opened, the control signal voltage of controller makes magnetic valve reset, gas circuit commutates and cylinder piston caused to remote
Move from marking-off plate direction, marking-off pin is separated with marking-off plate；
(2) while starting data acquisition in welding process, change the control signal voltage of controller, magnetic valve set makes
Cylinder air flow must be flow through reversely, to moving near marking-off plate direction, marking-off pin is contacted cylinder piston with marking-off plate, and is entirely being counted
According to all marking in gatherer process；
(3) while data acquisition terminates, change the control signal voltage of controller, magnetic valve resets, gas circuit commutation makes
Cylinder piston is obtained to moving away from marking-off plate direction, marking-off pin is separated with marking-off plate；The beginning of dashed part and knot on marking-off plate
Beam position represents the part for starting data acquisition and terminating data acquisition；
(4) the beginning and end position according to dashed part on marking-off plate, the nominal data collection on institute's welder's part start
With the position terminated；
(5) work is being cut perpendicular to bead direction in the data acquisition beginning and end position demarcated along on institute's welder's part
Part, and polished, corrode, obtain workpiece maximum fusion penetration position；
(6) workpiece is cut at workpiece maximum fusion penetration position along welding direction, and is polished, corroded, obtain
Take fusion line position and its image；
(7) fusion line edge detection is carried out using man-machine interaction mode to image on PC, extract from line start to
The fusion penetration of line latter end, and be fitted, obtain fitting function；Its method is：
1) image obtained to step (6) on PC, is first clicked on using mouse and multiple in melt run can reflect melt run
The point position of variation tendency, and the coordinate of these points is preserved, its set is designated as set A；Then click on multiple on fusion penetration datum line
The point position of fusion penetration datum line variation tendency can be reflected, and record these coordinates put, its set is designated as set B；To obtain energy
Enough reflect that the number of the point position coordinates of melt run and fusion penetration datum line variation tendency at least takes 5 points, lines for line segment knee
2 points are taken at least at section straight line；
2) fitting function F1 is obtained using curve matching using set A；Fitting letter is obtained using curve matching using set B
Number F2；Distance functions of the F1 and F2 on vertical welding direction is the fitting function F3 of fusion penetration, and F3 fusion penetrations are to use pixel number
The fusion penetration of expression；
3) according to image distance and the ratio of actual range, F3 is converted to into fusion penetration fitting function F4, the fusion penetration of F4 is real
Border fusion penetration, outputs of the F4 for step (7)；
(8) the welding test signal number according to online acquisition, obtains equal number of fusion penetration using fitting function interpolation
Signal, realizes synchronous.
A kind of advantage of the device and method of arc welding fusion penetration information and the welding data collecting synchronizing information of the present invention and
Beneficial effect：
1st, the present invention solves prior art problem, meets technical need, can be not only used for offline quick measurement weld seam and melts
Deeply convince breath, the synchronizing informations such as fusion penetration information and other such as arc voltages, electric current can be made again, also conveniently can be carried out with regard to fusion penetration
Modeling and control research.
2nd, apparatus structure of the invention is simple, it is easy to accomplish, low cost.
3rd, the method for the present invention is convenient and easy, quick accurate, is suitable for wide.
Description of the drawings
Fig. 1 is the construction block diagram of the arc welding fusion penetration information with welding data collecting synchronizing information device of the present invention；
Fig. 2 is that the maximum fusion penetration position schematic picture figure after corrosion workpiece is cut perpendicular to bead direction；
Fig. 3 is the workpiece photograph image along after welding direction cutting corrosion；
Fig. 4 is the contrast photo figure before and after the wall fusion penetration fitting of narrow gap side, wherein before (a) is for fitting, (b) after for fitting；
In figure：1. welding torch, 2. scriber, 2-1. cylinders, 2-2. marking-off pin fixtures, 2-3. marking-off pins, 3. magnetic valve, 4. gas
Pump, 5. controller, 6. marking-off plate.
Specific embodiment
In order to deepen the understanding of the present invention, below in conjunction with the accompanying drawings the work that is embodied as of the present invention is further chatted in detail
State, it is clear that described embodiment is a part of embodiment of the present invention, rather than the embodiment of whole.The embodiment is only used
In the present invention is explained, limiting the scope of the present invention is not constituted.
As shown in figure 1, a kind of device of the arc welding fusion penetration information and welding data collecting synchronizing information for the present invention, bag
Include arc torch 1, scriber 2, two-position five-way electromagnetic valve of gas circuit 3, air pump 4, controller 5, marking-off plate 6.Scriber 2 is by mini gas
Cylinder 2-1, marking-off pin fixture 2-2, marking-off pin 2-3 are formed by connecting.Marking-off pin 2-3 is scribed pin fixture 2-2 clampings, marking-off pin fixture
The piston rod of 2-2 and mini cylinder 2-1 is connected.Scriber 2 is connected on welding torch 1.During installation, marking-off pin 2-3 and welding arc
Projected position of the center in welding direction is identical.Marking-off plate 6 is placed perpendicular to the direction of welding torch 1, is located with workpiece flat
Face is parallel.Air pump 4, two-position five-way electromagnetic valve of gas circuit 3, cylinder 2-1 pores are connected to form gas circuit, the electricity of controller 5 by tracheae
Pressure is applied to the control end of two-position five-way electromagnetic valve of gas circuit 3, realizes that its gas circuit switches, and then changes the gas circuit for flowing through cylinder 2-1
Direction, the final direction of motion for changing marking-off pin 2-3, controls its cut on marking-off plate 6.
A kind of arc welding fusion penetration information of the present invention and the method for welding data collecting synchronizing information, comprise the following steps：
(1) before data acquisition, air pump 4 is opened, controller 5 sends control signal, its voltage makes two-position-five-way solenoid valve 3 multiple
Position, gas circuit commutates so that the piston in mini cylinder 2-1 is to the direction movement away from marking-off plate 6, marking-off pin 2-3 and marking-off plate 6
Separate.
(2) voltage of the control signal of controller 5, two-position five-way while starting data acquisition in welding process, are changed
3 set of magnetic valve causes the air-flow for flowing through mini cylinder 2-1 reverse, and the piston of cylinder 2-1 is to the direction fortune near marking-off plate 6
Dynamic, marking-off pin 2-3 is contacted with marking-off plate 6, and all markings in whole data acquisition.
(3) while data acquisition terminates, change the voltage of 5 control signal of controller, two-position-five-way solenoid valve 3 resets,
Gas circuit commutates and the piston of mini cylinder 2-1 is moved to the direction away from marking-off plate 6, and marking-off pin 2-3 is separated with marking-off plate 6.
On marking-off plate 6, the beginning and end position of dashed part represents the part for starting data acquisition and terminating data acquisition.
(4) the beginning and end position according to dashed part on marking-off plate 6, the nominal data collection on institute's welder's part start
With the position terminated.
(5) work is being cut perpendicular to bead direction in the data acquisition beginning and end position demarcated along on institute's welder's part
Part, and polished, corrode, obtain workpiece maximum fusion penetration position.
If Fig. 2 is to start data acquiring location, workpiece is cut perpendicular to bead direction, and polished, 4% nitric acid alcohol
After solution corrosion, the maximum fusion penetration position d for starting data acquiring location is obtained1；In the same manner, terminating data acquiring location, passing through
Workpiece is carried out to cut perpendicular to bead direction, polishing, after corrosion, obtain the maximum fusion penetration position d for terminating data acquiring location2。
Workpiece maximum fusion penetration position such as following formula calculates gained, the final maximum fusion penetration position for determining workpiece.
(6) workpiece is cut at maximum fusion penetration position d along welding direction, and is polished, corroded, obtain molten
Zygonema position and its image P, as shown in Figure 3；
(7) fusion line edge detection is carried out using man-machine interaction mode to image P, extraction starts to line to terminate from line
Partial fusion penetration, and be fitted, obtain fitting function；
1) the image P for obtaining first is clicked in melt run by 5 using mouse and can be reflected fusion on any one computer
The point position of line variation tendency, and the coordinate of these points is preserved, its set is designated as set A；Then mouse is recycled to click on fusion penetration
2 point positions that can reflect fusion penetration datum line variation tendency on datum line, and the coordinate of these points is recorded, its set is designated as set
B；Shown in melt run and fusion penetration datum line such as Fig. 4 (a)；
2) fitting function F1 is obtained using curve matching using set A；Fitting letter is obtained using curve matching using set B
Number F2；Distance functions of the F1 and F2 on vertical welding direction is the fitting function F3 of fusion penetration, and F3 fusion penetrations are to use pixel number
The fusion penetration of expression；Fig. 4 (b) is the result that melt run matched curve F1 is redrawn back image, it is seen that matched curve is more smooth, and former
Melt run has good correspondence；
3) according to image distance and the ratio of actual range, F3 is converted to into fusion penetration fitting function F4, the fusion penetration of F4 is real
Border fusion penetration, outputs of the F4 for step (7)；
(8) number according to the welding machine test signal (being welding current) of online acquisition herein, is given birth to using fitting function F4
Into the fusion penetration signal for synchronizing.Distribution in this example according to welding current signal, enters row interpolation to fitting function and realizes
The actual side wall fusion penetration information of narrow gap welding is synchronous with welding current information.
Embodiments of the present invention are these are only, its description is more concrete and detailed, but therefore can not be interpreted as right
The restriction of the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the present invention
On the premise of design, can also make some deformations and improvement, it is all to be obtained in the form of equivalent or equivalent transformation
Technical scheme, is within the scope of the present invention.
Claims (3)
1. the synchronous method of the device of a kind of arc welding fusion penetration information and welding data collecting synchronizing information, described device is by welding
Torch, scriber, magnetic valve, air pump, controller and marking-off plate are constituted；The scriber is from top to bottom successively by cylinder, marking-off pin
Fixture and marking-off pin are formed by connecting；The cylinder is fixedly connected on the welding torch；The air pump, magnetic valve, cylinder pass through gas
Pipe is connected to form gas circuit, and the control signal of the controller is input into the solenoid valve control end, realizes that its gas circuit switches, described
Marking-off plate is placed perpendicular to welding torch direction, parallel with workpiece place plane；The scriber when mounted, is rule needle tip and is welded
Connect projected position of the arc center in welding direction identical；Characterized in that, the method comprising the steps of：
(1) open air pump, controller output control signal voltage makes magnetic valve reset, gas circuit commutate cause cylinder piston to away from
Marking-off plate direction is moved, and marking-off pin is separated with marking-off plate；
(2) while starting data acquisition in welding process, change the control signal voltage of controller, magnetic valve set causes stream
Cross cylinder air flow reversely, to moving near marking-off plate direction, marking-off pin is contacted cylinder piston with marking-off plate, and is adopted in whole data
All marking during collection；
(3) while data acquisition terminates, change the control signal voltage of controller, magnetic valve resets, gas circuit commutation makes to bring about the desired sensation
To moving away from marking-off plate direction, marking-off pin is separated cylinder piston with marking-off plate；The beginning and end position of dashed part on marking-off plate
Put and represent the part for starting data acquisition and terminating data acquisition；
(4) the beginning and end position according to dashed part on marking-off plate, the nominal data collection on institute's welder's part start and tie
The position of beam；
(5) the data acquisition beginning and end position demarcated along on institute's welder's part perpendicular to bead direction cut workpiece, and
Polished, corroded, obtained workpiece maximum fusion penetration position；
(6) workpiece is cut at workpiece maximum fusion penetration position along welding direction, and is polished, corroded, obtain molten
Zygonema position and its image；
(7) fusion line edge detection is carried out using man-machine interaction mode to image on PC, extraction starts to line from line
The fusion penetration of latter end, and be fitted, obtain fitting function；
(8) the welding test signal number according to online acquisition, obtains equal number of fusion penetration signal using fitting function interpolation,
Realize synchronous.
2. the synchronous side of arc welding fusion penetration information according to claim 1 and the device of welding data collecting synchronizing information
Method, it is characterised in that the employing man-machine interaction mode described in step (7) carries out fusion line edge detection to image, extracts from drawing
Line starts the fusion penetration to line latter end, and is fitted, the method for obtaining fitting function, comprises the following steps：
A image that () is obtained to step (6) on PC, using mouse first click in melt run it is multiple can reflect melt run change
The point position of trend, and the coordinate of these points is preserved, its set is designated as set A；Then click on multiple energy on fusion penetration datum line anti-
The point position of fusion penetration datum line variation tendency is reflected, and records these coordinates put, its set is designated as set B；
B () obtains fitting function F1 using curve matching using set A；Fitting function is obtained using curve matching using set B
F2；Distance functions of the F1 and F2 on vertical welding direction is the fitting function F3 of fusion penetration, and F3 fusion penetrations are to use pixel number table
The fusion penetration for showing；
C F3 is converted to fusion penetration fitting function F4 according to image distance and the ratio of actual range by (), the fusion penetration of F4 is actual molten
It is deep, outputs of the F4 for step (7).
3. the synchronous side of arc welding fusion penetration information according to claim 2 and the device of welding data collecting synchronizing information
Method, it is characterised in that the plurality of point position that can reflect melt run variation tendency of step (a) and the plurality of can reflect fusion penetration
The point position number of the changes in coordinates trend of the point position of datum line variation tendency at least takes 5 points, line segments for line segment knee
2 points are taken at straight line at least.
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| CN106270940B (en) * | 2016-08-19 | 2017-12-08 | 天津大学 | A kind of method of synchronous detection welding process electric image signal |
| CN107552994B (en) * | 2017-09-26 | 2019-06-28 | 宁波市鄞州磁泰电子科技有限公司 | A kind of weld penetration, molten wide and the high detection method of weldering |
| CN110057995A (en) * | 2019-03-30 | 2019-07-26 | 苏州宇量电池有限公司 | A kind of welding penetration detection method of lithium ion battery aluminum hull |
| CN112917453B (en) * | 2021-02-22 | 2022-05-27 | 中车青岛四方机车车辆股份有限公司 | Method for processing scribing data of welding part, electronic device and readable storage medium |
| CN114131201B (en) * | 2021-11-26 | 2022-09-20 | 华中科技大学 | Method, system and device for welding variable-thickness invar steel plate |
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