WO2021237583A1

WO2021237583A1 - Controller, and method and device for detecting filling rate of flux-cored welding wire

Info

Publication number: WO2021237583A1
Application number: PCT/CN2020/092973
Authority: WO
Inventors: 龙伟民; 钟素娟; 黄俊兰; 张雷; 纠永涛; 丁天然; 李秀朋; 郭艳红
Original assignee: 郑州机械研究所有限公司
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2021-12-02
Also published as: KR20210148839A; KR102403587B1; CN111758018B; CN111758018A

Abstract

A controller (16), and a method and device (1) for detecting a filling rate of a flux-cored welding wire. The method for detecting a filling rate of a flux-cored welding wire comprises: acquiring the actual deflection when a bendable part (21) of a flux-cored welding wire (2) is bent to reach a preset curvature (S500); comparing the actual deflection with a preset deflection range (S501); and determining, according to a comparison result, whether an actual filling rate of the bendable part (21) is within a preset range (S502). By means of the method for detecting a filling rate of a flux-cored welding wire, whether a filling rate of a flux-cored welding wire (2) is within a preset range can be detected without peeling off the flux-cored welding wire (2), such that the production efficiency can be effectively improved, and the wastage of materials is also reduced.

Description

Controller, method and equipment for detecting filling rate of flux-cored welding wire

Technical field

The present disclosure relates to the field of flux-cored welding wire detection, and in particular, to a controller, a method and equipment for detecting the filling rate of flux-cored welding wire.

Background technique

As a high-efficiency welding material, flux-cored welding wire has been widely used in shipbuilding, construction steel structure, automobile, air conditioning and other industries. The so-called powder filling rate is the ratio of the mass of powder in the flux-cored wire to the total mass of the flux-cored wire. The powder in the flux-cored welding wire is also called flux powder. The powder plays the role of film removal, flow aid, and oxidation prevention. It is a key factor for the successful implementation of welding. If the powder filling rate is too high, there will be waste, and too low will affect the welding performance. Generally, it is desirable that the filling rate of the flux-cored welding wire is the same everywhere in the length direction of the flux-cored welding wire.

The traditional method of detecting the filling rate of flux-cored wires easily leads to an increase in workload, reduces production efficiency, and causes a large amount of waste of materials.

Summary of the invention

The objectives of the present disclosure include, for example, to provide a method for detecting the filling rate of a flux-cored welding wire, which can improve the shortcomings of the prior art. The method for detecting the filling rate of a flux-cored welding wire can improve production efficiency and reduce material waste.

The purpose of the present disclosure also includes providing a controller that can improve the shortcomings of the prior art, the controller can improve the production efficiency and reduce the waste of materials.

The purpose of the present disclosure also includes providing a flux-cored wire filling rate detection device, which can improve the deficiencies of the prior art, and the flux-cored wire filling rate detection device can improve production efficiency and reduce material waste.

The embodiments of the present disclosure can be implemented as follows:

The embodiment of the present disclosure provides a method for detecting the filling rate of flux-cored welding wire, which includes:

Obtain the actual deflection when the bending part of the flux-cored wire is bent to a preset curvature;

Compare the actual deflection with the preset deflection range;

According to the result of the comparison, it is determined whether the actual filling rate of the bent portion is within a preset range.

Optionally, the step of obtaining the actual deflection when the bent portion of the flux-cored welding wire is bent to a preset curvature includes:

Acquiring the actual outer contour image when the bending portion is bent to reach the preset curvature;

The step of comparing the actual deflection with a preset deflection range includes:

The actual outer contour image is compared with the preset outer contour image.

Optionally, after the step of determining whether the actual filling rate of the bent portion is within a preset range according to the result of the comparison, the method for detecting the filling rate of flux-cored wire includes:

If the actual outer contour image exceeds the preset outer contour image, the actuator is controlled to perform a reminder action.

Optionally, before the step of obtaining the actual deflection when the bent portion of the flux-cored wire is bent to reach a preset curvature, the method for detecting the filling rate of the flux-cored wire further includes:

The bending portion is bent to reach the preset curvature.

Optionally, the step of bending the bending portion to the preset curvature includes:

All the plurality of bending parts are bent to reach the preset curvature;

The step of obtaining the actual deflection when the bent portion of the flux-cored welding wire is bent to a preset curvature includes:

Obtain the actual deflection when the plurality of bending parts are bent to reach the preset curvature.

Optionally, the step of bending a plurality of the bending portions to reach the preset curvature includes:

The directions in which the two adjacent bending parts are bent are opposite.

Optionally, the step of bending the bending portion to reach the preset curvature includes:

The acting member continuously acts on the flux-cored wire during the movement of the flux-cored wire along the preset orbit, so that the different bending parts of the flux-cored wire are bent to the preset curvature.

Optionally, the step of causing the acting member to continuously act on the flux-cored welding wire during the movement of the flux-cored wire along a preset orbit includes:

A plurality of the acting members continuously act on different parts of the flux-cored welding wire while the flux-cored welding wire moves along a preset orbit.

Optionally, before the step of bending the bent portion to reach the preset curvature, the method for detecting the filling rate of flux-cored welding wire further includes:

The flux-cored welding wire is moved along a preset track.

The embodiment of the present disclosure also provides a controller, which includes:

An acquiring module configured to acquire the actual deflection when the bending part of the flux-cored welding wire is bent to reach a preset curvature;

A comparison module configured to compare the actual deflection with a preset deflection range;

The determining module is configured to determine whether the actual filling rate of the bending portion is within a preset range according to the result of the comparison.

The embodiment of the present disclosure also provides a device for detecting the filling rate of flux-cored welding wire, which includes an acting part, a collecting part, and a controller;

The acting member is configured to bend the bending portion to the preset curvature, and the collecting member is configured to output the first deflection characterizing the actual deflection when the bending portion is bent to the preset curvature. Signal, the controller communicates with the collecting part, and the controller is configured to execute the above-mentioned method for detecting the filling rate of flux-cored welding wire.

Optionally, the number of the acting members is multiple, the multiple acting members are arranged at intervals to form a preset track, the flux-cored welding wire extends along the extension direction of the preset track, and the multiple acting members Acting on different parts of the flux-cored welding wire respectively, so that the different parts of the flux-cored welding wire are all bent into the bending part with a predetermined curvature.

Optionally, the flux-cored welding wire filling rate detection equipment further includes a winding device that acts on the flux-cored welding wire so that the flux-cored welding wire can move along the extension direction of the preset track .

Optionally, the two adjacent acting members are configured to act on opposite sides of the flux-cored welding wire, so that the two adjacent acting members act on the two opposite sides of the flux-cored welding wire. The direction of the concave side of each of the bending parts is opposite.

Optionally, a plurality of the action parts are distributed along a first preset direction, the drug core detection device further includes a plurality of adjustment parts, the number of the adjustment parts is the same as the number of the action parts, and there is a one-to-one correspondence , The adjusting member is drivingly connected with the corresponding acting member, so that the acting member can move along a second predetermined direction, wherein the first predetermined direction and the second predetermined direction form an angle k is set, 0°<k<180°.

Optionally, each of the adjusting members is movable along the first preset direction, so as to drive the corresponding acting member to move along the first preset direction.

Optionally, the flux-cored welding wire filling rate detection device further includes an execution part, the execution part communicates with a controller, and the execution part is configured to execute a reminding action under the control of the controller.

Compared with the existing technology, the beneficial effects of the embodiments of the present disclosure include, for example:

The embodiment of the present disclosure provides a method for detecting the filling rate of flux-cored welding wire. Since the bending part with different filling rate is bent to a preset curvature, the actual deflection is different. Therefore, by comparing the bending part being bent to the preset curvature The difference between the actual deflection at the time of curvature and the preset deflection range can determine whether the actual filling rate of the bent portion is within the preset range. In this way, the method for detecting the filling rate of the flux-cored wire can detect whether the filling rate of the flux-cored wire is within a preset range without peeling off the wire, which can effectively improve the production efficiency and reduce the waste of materials.

The embodiment of the present disclosure also provides a controller, which can also determine whether the actual filling rate of the bending portion is based on the difference between the actual deflection when the bending portion is bent to the preset curvature and the preset deflection range. Located within the preset range. In this way, production efficiency can be effectively improved, and material waste can be reduced.

The embodiment of the present disclosure also provides a device for detecting the filling rate of flux-cored welding wire, including a controller that executes the above-mentioned method for detecting the filling rate of flux-cored welding wire. The flux-cored wire filling rate detection equipment can also effectively improve production efficiency and reduce material waste.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present disclosure more clearly, the following will briefly introduce the drawings needed in the embodiments. It should be understood that the following drawings only show certain embodiments of the present disclosure, and therefore do not It should be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative work.

FIG. 1 is a schematic diagram of the structure of a flux-cored wire filling rate detection device provided by an embodiment of the disclosure;

FIG. 2 is a schematic diagram of the structure when the bending portion provided by the embodiment of the disclosure is bent;

FIG. 3 is a schematic structural diagram of a zigzag crack generated in a bending portion provided by an embodiment of the disclosure; FIG.

4 is a schematic structural diagram of a sharp angle formed by a bent portion provided by an embodiment of the disclosure;

Fig. 5 is a schematic structural diagram of the cross section at point B in Fig. 2;

FIG. 6 is a schematic diagram of modules of a controller provided by an embodiment of the disclosure;

FIG. 7 is a flow chart of a method for detecting the filling rate of a flux-cored wire provided by an embodiment of the disclosure.

Icon: 1-Flux-cored wire filling rate detection equipment; 11-substrate; 12-acting part; 13-collecting part; 14-adjusting part; 15-preset track; 16-controller; 161-acquisition module; 162-comparison Module; 163-determining module; 164-sending module; 17-winding device; 18-handle; 19-actuating part; 2-flux-cored welding wire; 21-bending part.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments These are a part of the embodiments of the present disclosure, but not all of the embodiments. The components of the embodiments of the present disclosure generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

Therefore, the following detailed description of the embodiments of the present disclosure provided in the accompanying drawings is not intended to limit the scope of the claimed present disclosure, but merely represents selected embodiments of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of the present disclosure.

It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

In the description of the present disclosure, it should be noted that if the terms “center”, “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “inner”, “outer” appear The orientation or positional relationship indicated by "" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship usually placed when the product of the invention is used. It is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating It may also imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure.

In addition, if the terms "first", "second", "third", etc. appear, they are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.

In addition, the appearance of the terms "horizontal", "vertical", "dangling", etc. does not mean that the component is required to be absolutely horizontal or hanging, but can be slightly inclined. For example, “horizontal” only means that its direction is more horizontal than “vertical”, and it does not mean that the structure must be completely horizontal, but can be slightly inclined.

In the description of the present disclosure, it should also be noted that, unless otherwise clearly defined and defined, the terms “setup”, “installation”, “connected”, “connected”, etc. should be interpreted in a broad sense, for example, it may be The fixed connection can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in the present disclosure can be understood in specific situations.

It should be noted that, in the case of no conflict, the features in the embodiments of the present disclosure can be combined with each other.

In the related art, the powder filling rate of the flux-cored wire is not the same everywhere. In the production of flux-cored wire, in order to ensure that the filling rate of the powder of the flux-cored wire meets the production requirements, the main method is to stop sampling and check the filling rate during the production process to determine whether the requirements are met. The specific method used is to Peel off a section of the welding wire, take out the powder, weigh the powder and metal separately, and calculate the filling rate. This detection method easily leads to an increase in work, reduces production efficiency, and causes a large amount of waste of materials.

1, this embodiment provides a controller 16, a flux-cored wire filling rate detection device 1, and a flux-cored wire filling rate detection method, which can effectively improve the above-mentioned technical problems.

Specifically, please refer to FIG. 1. The flux-cored wire filling rate detection device 1 includes an acting member 12, a collecting member 13, and a controller 16. The acting member 12 is configured to bend the bending portion 21 of the flux-cored wire 2 to a preset value. Curvature. The collecting element 13 is configured to output a first signal representing the actual deflection of the bending portion 21 when it is bent to a preset curvature. The controller 16 communicates with the collecting element 13, and after the controller 16 receives the first signal, The actual deflection can be compared with the preset deflection range, and according to the comparison result, it can be determined whether the actual filling rate of the bending portion 21 is within the preset range.

In this way, the flux-cored wire filling rate detection device 1 can detect whether the filling rate of the flux-cored wire 2 is within a preset range without peeling off the flux-cored wire 2, which can effectively improve production efficiency and reduce material waste.

It can be understood that, in this embodiment, because the bending portion 21 with different filling rates is bent to a preset curvature, the actual deflection is different. Therefore, it is determined that the bending portion 21 is bent to the preset curvature. Whether the actual deflection is within the preset deflection range, it can be determined whether the actual filling rate of the bent portion 21 is within the preset range. In the following, the above detection principle will be introduced in detail.

When the bent portion 21 of the flux-cored welding wire 2 is bent to a preset curvature, the outer contour of the bent portion 21 forms a smooth deflection curve. At point B of the section as shown in Figure 2-4, when the internal powder of the flux-cored wire 2 is too much or too little, the curvature mutation is most likely to occur at point B, resulting in sharp sawtooth cracks or sharp angles, that is, obvious deflection mutations. . Specifically, when the powder content inside the flux-cored wire 2 is too high, that is, when the filling rate is too high, with reference to Fig. 3, sawtooth cracks will be generated on the outside of point B. At this time, the maximum fluctuation range of the actual deflection will exceed the preset deflection range. When the powder content inside the flux-cored wire 2 is too small, that is, when the filling rate is too low, in conjunction with Fig. 4, the inner side of point B will form a sharp angle. At this time, the maximum fluctuation range of the actual deflection will also exceed the preset deflection range.

In this way, by comparing whether the actual deflection of the bent portion 21 is within the preset deflection range, it can be determined whether the actual filling rate of the bent portion 21 is within the preset range.

It should be noted that, generally, in actual production, the preset range of the filling rate of the bending portion 21 is set to 8%-15%. The preset deflection range is the deflection composition range when the filling rate is within the range of 8% to 15%. The curvature of a curve is the rotation rate of the tangent direction angle of a certain point on the curve to the arc length, which is defined by differentiation, indicating the degree to which the curve deviates from a straight line. Mathematically, a numerical value indicating the degree of curvature of a curve at a certain point. The greater the curvature, the greater the degree of curvature of the curve. In this embodiment, the preset curvature cannot be too large, otherwise it will easily cause the flux-cored welding wire 2 to be bent too large and break or be damaged. Of course, the preset curvature should not be too small, so that the deflection of the flux-cored wire 2 will not change much, which will result in inaccurate detection of the filling rate. Specifically, the preset curvature can be determined according to parameters such as the material of the actual flux-cored welding wire 2, the diameter of the flux-cored welding wire 2, and the bending strength of the flux-cored welding wire 2.

In addition, the principle that the actual powder content inside the flux-cored wire 2 affects the actual deflection is:

An important geometric parameter to measure the bending resistance of the flux-cored wire 2 is the polar moment of inertia of the section. The orthogonal coordinate system shown in Figure 2 can be set. The polar moment of inertia of a section for any point is equal to the sum of the second axial moments of the section in any set of orthogonal coordinate systems with this point as the origin. Take a cross-section of the flux-cored wire 2 at point B and refer to Fig. 5. In this cross-section, the outer diameter of the flux-cored wire 2 is D, and the inner diameter (powder diameter) is d. If the powder filling amount of the flux-cored wire 2 is qualified, the flux-cored wire 2 is solid. At this time, the cross-section of the flux-cored wire 2 is a solid circular cross-section.

If the filling amount of powder of the flux-cored wire 2 is unqualified, and the limit is hollow, the cross-section of the flux-cored wire 2 is a hollow circular cross-section. At this time, the polar moment of inertia I _p =πD ⁴ (1-a ⁴ )/32, a=d/D.

Here, it can be inferred that the polar moment of inertia of the cross-section of the flux-cored wire 2 is different due to the different powder content. If the extreme moment of inertia of the section is different, the bending section coefficient W (W = I _p /D) is different. Under the same bending force, the maximum deflection (plastic deformation degree) on the deflection curve will eventually be different.

Therefore, in this embodiment, whether the actual deflection of the bent portion 21 of the flux-cored welding wire 2 is within the preset deflection range can determine whether the actual filling rate of the bent portion 21 is within the preset range. Converts the filling rate of the bending part 21 that is not easy to detect into the actual deflection of the bending part 21 that is intuitive and easy to detect, which is convenient for detection and effectively improves production efficiency without causing waste of flux-cored welding wire 2 .

It should be noted that, in this embodiment, the image capture device 13 is selected as the image capture device, and the image capture device is configured to output a first signal representing the actual outer contour image when the bending portion 21 is bent to a preset curvature, and the controller 16 After receiving the first signal, compare the actual outer contour image with the preset outer contour image to determine whether the actual outer contour image is within the range covered by the preset outer contour image. If the actual outer contour image is within the range covered by the preset outer contour image, it means that the actual filling rate of the bent portion 21 is within the preset range, and it is a qualified state. Correspondingly, if part or all of the actual outer contour image exceeds the range covered by the preset outer wheel image, it means that the actual filling rate of the bent portion 21 is not within the preset range, and it is in an unqualified state.

In other embodiments, the collecting member 13 can also be a deflection measuring device, which can directly output the first signal representing the actual deflection value when the bending portion 21 is bent to the preset curvature, and the controller 16 receives the first signal Later, by comparing the actual deflection value with the preset deflection range, it can also be determined whether the actual filling rate of the bent portion 21 is within the preset range.

It should be noted that in this embodiment, the acting member 12 is a pulley. During the process of the flux-cored welding wire 2 circumventing the pulley, under the action of the pulley, the bending portion 21 of the flux-cored welding wire 2 can be bent to a preset curvature. In practical applications, pulleys of different specifications can be replaced according to the preset curvature value.

1, in this embodiment, the flux-cored wire 2 can move along the preset track 15. When the flux-cored wire 2 moves along the preset track 15, the different bends 21 of the flux-cored wire 2 are continued by the acting member 12 Bend to a preset curvature. In this way, during the movement of the flux-cored wire 2 along the preset track 15, the collecting part 13 can collect the actual outer contour images of the different bending parts 21, and can determine whether the filling rate of the different bending parts 21 is within the preset range, thereby The inspection operation of the entire flux-cored welding wire 2 can be completed.

Specifically, in this embodiment, the flux-cored welding wire filling rate detection equipment 1 further includes a winding device 17 that acts on the flux-cored welding wire 2 to drive the flux-cored welding wire 2 to move along the preset track 15. It should be noted that the movement of the flux-cored welding wire 2 along the preset track 15 can be a uniform movement or a variable-speed movement. When moving at a uniform speed, it is more advantageous for the acting member 12 to bend the different bending parts 21 of the flux-cored welding wire 2.

Please refer to Figure 1. In this embodiment, the number of the acting members 12 is multiple, the multiple acting members 12 are arranged at intervals, and the flux-cored welding wire 2 is wound around the multiple acting members 12 at the same time. The above-mentioned preset track 15 can be formed between the acting parts 12, and the flux-cored welding wire 2 extends along the preset track 15 and moves along the preset track 15 under the action of the winding device 17.

In this way, when the flux-cored welding wire 2 moves along the preset track 15, the same bending part 21 can be bent by different acting members 12 at different times to reach the preset curvature, which can affect the actual deflection of the same bending part 21 Perform multiple tests to improve the accuracy of the test results.

It should be noted that in this embodiment, two adjacent acting members 12 are arranged in a staggered manner, and the adjacent two acting members 12 are configured to act on opposite sides of the flux-cored welding wire 2 respectively. The bending directions of the different bending portions 21 bent by the two acting members 12 are opposite, so that the concave sides of the two adjacent bending portions 21 have opposite directions. Such an arrangement facilitates that the bent portion 21 that is bent to a preset curvature at the same time is not prone to interference with each other, and at the same time, it is also beneficial for the flux-cored welding wire 2 to move smoothly along the preset track 15.

Specifically, in conjunction with FIG. 1, in this embodiment, a plurality of acting members 12 are distributed along a first preset direction, and the drug core detection device further includes a plurality of adjusting members 14, the number of adjusting members 14 and the number of acting members 12 The same and one-to-one correspondence, that is, one adjusting member 14 is configured to adjust one acting member 12. Specifically, the adjusting member 14 is in transmission connection with the corresponding acting member 12, so that the acting member 12 can move along the second preset direction, where the first preset direction and the second preset direction are set at an angle k, 0° ＜k＜180°.

Taking FIG. 1 as an example, the first preset direction is the direction shown by arrow g and arrow h in FIG. 1, the second preset direction is the direction indicated by arrow s and arrow t in FIG. 1, and the first preset direction is the same as The second preset directions are perpendicular to each other.

In the actual production process, according to the preset curvature, under the adjustment of the adjusting member 14, the distance between the two adjacent acting members 12 in the second preset direction can be changed, so that the bending part 21 The preset curvature reached by the bending of the acting member 12 is different.

Specifically, in this embodiment, the adjusting member 14 is selected as a screw, the axial direction of the adjusting member 14 is the same as the second preset direction, the adjusting member 14 and the acting member 12 are screwed together, and when the adjusting member 14 rotates around its own axis, The actuating member 12 can be driven to move along the axial direction of the adjusting member 14.

1, in this embodiment, the flux-cored welding wire filling rate detection device further includes a handle 18. One end of each adjusting member 14 is connected with a handle 18, which is convenient for the staff to hold, and the staff can turn the handle 18 At this time, the adjusting member 14 can be driven to rotate around its own axis, so that the acting member 12 can move along the axial direction of the adjusting member 14.

In addition, in this embodiment, each adjustment member 14 is movable along the first preset direction. In this way, when the adjustment member 14 moves along the first preset direction, it can also drive the action member 12 along the first preset direction. The movement can change the distance between two adjacent acting members 12 in the first preset direction, so that the preset curvature reached by the bending portion 21 by the acting member 12 is different.

It is understandable that in the actual production process, the specific preset curvature value to which the bending part 21 needs to be bent is determined according to factors such as the material and diameter of the flux-cored welding wire 2. The adjustment function of the, etc. determines the installation positions of the multiple acting members 12 to form a preset track 15. Then the flux-cored welding wire 2 is extended along the preset track 15 and the winding device 17 is activated to drive the flux-cored welding wire 2 to move along the preset track 15.

It should be noted that, in this embodiment, during the movement of the flux-cored wire 2 along the preset track 15, the acting member 12 can rotate about its own axis relative to the adjusting member 14, which can reduce the gap between the flux-cored wire 2 and the flux-cored wire 2. Friction, reduce the damage of flux-cored wire 2.

Referring to FIG. 6, in this embodiment, the controller 16 includes an acquisition module 161, a comparison module 162, and a determination module 163. The acquisition module 161 is configured to acquire the aforementioned first signal, and the comparison module 162 is configured to compare the aforementioned actual deflection with The preset deflection ranges are compared, and the determining module 163 is configured to determine whether the actual filling rate of the bending portion 21 is within the preset range according to the above-mentioned comparison result.

It should be noted that the communication mode between the acquiring module 161 and the collecting component 13 may be wired communication or wireless communication.

In this embodiment, the actual deflection of the bending portion 21 is embodied by the outer contour image of the bending portion 21, and the collecting member 13 outputs the first image characterizing the actual outer contour image when the bending portion 21 is bent to a preset curvature. For a signal, after the acquisition module 161 acquires the first signal, the comparison module 162 compares the actual outer contour image with the range covered by the preset outer contour to determine whether the actual outer contour image is within the range covered by the preset outer contour.

In other embodiments, the actual deflection of the bending portion 21 may be embodied by an actual value, and the collecting member 13 outputs a first signal representing the actual deflection value when the bending portion 21 is bent to reach a preset curvature, and the acquiring module After 161 obtains the first signal, the comparison module 162 compares the actual deflection value with the preset deflection range to determine whether the actual deflection value is within the preset deflection range.

It should be noted that, in this embodiment, the controller 16 further includes a sending module 164 configured to send a second signal indicating that the actual filling rate is not within a preset range, and the flux-cored wire filling rate detection The device 1 further includes an execution member 19, which is configured to receive the above-mentioned second signal and execute a reminder action.

The executor 19 may be an alarm, and after receiving the second signal, the alarm will sound an alarm to remind the relevant staff.

The execution member 19 may also be a display screen. After receiving the second signal, the display screen displays the information that the filling rate of the bending portion 21 is unqualified at this time, so as to remind the relevant staff.

In this embodiment, the above-mentioned winding device 17 can also receive the second signal. After receiving the second signal, the winding device 17 will stop working, so that the staff can find the bending part 21 with unqualified filling rate.

It should be noted that the communication mode between the sending module 164 and the actuator 19 can be wired communication or wireless communication. Similarly, the communication mode between the sending module 164 and the winding device 17 can be wired communication or It can be wireless communication.

Referring to FIG. 7, this embodiment also provides a method for detecting the filling rate of flux-cored welding wire. The method for detecting the filling rate of flux-cored welding wire includes:

S500: Obtain the actual deflection when the bent portion 21 of the flux-cored welding wire 2 is bent to reach a preset curvature.

S501: Compare the actual deflection with the preset deflection range.

S502: According to the comparison result, determine whether the actual filling rate of the bent portion 21 is within a preset range.

It is understandable that the method for detecting the filling rate of flux-cored welding wire can determine whether the actual filling rate of the bending portion 21 is within Within the preset range. In this way, the method for detecting the filling rate of the flux-cored wire can detect whether the filling rate of the flux-cored wire 2 is within a preset range without peeling the wire, which can effectively improve the production efficiency and reduce the waste of materials.

It should be noted that the method for detecting the filling rate of the flux-cored welding wire can be completed by the aforementioned controller 16 or used by a specific inspector. Wherein, when comparing the actual deflection with the preset deflection range, the inspector can judge by experience whether the actual filling rate of the bending portion 21 is within the preset range. For example: in conjunction with FIG. 3 and FIG. 4, if the inspector finds that the bent portion 21 has a sawtooth crack or sharp angle during the inspection process, it can be determined that the actual filling rate of the bent portion 21 is not within the preset range.

Taking the flux-cored welding wire filling rate detection device 1 provided in this embodiment as an example, an image acquisition device is selected as the acquisition component 13. Correspondingly, step S500 includes:

The actual outer contour image when the bending portion 21 is bent to reach the preset curvature is acquired.

Step 501 includes:

Compare the actual contour image with the preset contour image.

In this way, the calculation amount of the comparison module 162 and the determination module 163 is less, the overall detection process is simpler, and the applicability is better.

It should be noted that, in this embodiment, after step 502, the method for detecting the filling rate of flux-cored welding wire further includes:

S508: If the actual outer contour image exceeds the preset outer contour image, control the executor 19 to perform a reminder action.

Specifically, if the determining module 163 determines that the actual outer contour image exceeds the coverage of the preset outer contour image, the sending module 164 will send a second signal to the actuator 19, and the actuator 19 will perform the reminding action after receiving the second signal. The specific reminder action of the executor 19 has been recorded above, and the description will not be repeated here.

In this embodiment, before step S500, the method for detecting the filling rate of flux-cored welding wire further includes:

S503: The bending portion 21 is bent to a preset curvature.

Specifically, in this embodiment, the acting member 12 in FIG. 1 is used to act on the bending portion 21 to bend the bending portion 21 to a preset curvature.

It should be noted that, in this embodiment, there are multiple acting members 12, and step 503 includes:

The multiple bending parts 21 are all bent to a preset curvature.

Correspondingly, step S500 includes:

S504: Obtain the actual deflection of the plurality of bent portions 21 when the bent portions 21 reach a preset curvature.

In this way, at the same moment, the determining module 163 of the controller 16 can determine the filling rate of a plurality of different bending portions 21, which can effectively improve the detection efficiency.

It should be noted that in this embodiment, two adjacent acting members 12 act on opposite sides of the flux-cored welding wire 2. When the plurality of bending portions 21 are bent to a preset curvature, step S500 also includes :

S505: Make the directions in which two adjacent bending parts 21 are bent opposite.

In this way, at the same time, the bent portions 21 that are bent to a predetermined curvature are less likely to interfere with each other.

Referring to FIG. 7, in this embodiment, before step S503, the method for detecting the filling rate of flux-cored welding wire further includes:

S506: Move the flux-cored wire 2 along the preset track 15.

In this embodiment, with reference to FIG. 1, the multiple acting members 12 are distributed along a first predetermined direction, the flux-cored welding wire 2 bypasses the multiple acting members 12 at the same time, and the above-mentioned preset track 15 is formed between the multiple acting members 12 . Correspondingly, step S503 further includes:

S507: Make the acting member 12 continuously act on the flux-cored wire 2 during the movement of the flux-cored wire 2 along the preset track 15, so that the different bending parts 21 of the flux-cored wire 2 are bent to a preset curvature.

In this way, the method for detecting the filling rate of the flux-cored wire can detect the different bends 21 of the flux-cored wire 2 and can effectively improve the detection efficiency.

In this embodiment, there are multiple acting members 12. Correspondingly, step S507 includes:

S508: Make the multiple acting members 12 continuously act on different parts of the flux-cored wire 2 during the movement of the flux-cored wire 2 along the preset track 15 at the same time.

In this way, the same bent portion 21 will be bent by different acting members 12 at different times to reach a preset curvature, and the same bent portion 21 can be tested multiple times, which improves the accuracy of the detection result.

In some embodiments:

Please refer to Figure 1. Figure 1 shows a flux-cored wire filling rate detection device 1. The flux-cored wire filling rate detection device 1 also includes a substrate 11, an adjusting member 14, an acting member 12, a handle 18, a collecting member 13, and a controller 16. And the winding device 17. There are four adjusting pieces 14, acting pieces 12 and handles 18, which correspond to each other. The four adjusting pieces 14 can be rotatably arranged on the base plate 11, and one end of each adjusting piece 14 is connected with a handle 18, Each adjusting member 14 is connected with an acting member 12, wherein, in the first preset direction (the left and right direction in FIG. 1, namely:

In the indicated direction), the leftmost acting piece 12 and the rightmost acting piece 12 play a guiding role. The flux-cored wire 2 extends along the preset track 15, and the two acting pieces 12 in the middle can simultaneously The non-bending part 21 of the cored wire 2 is bent to a preset curvature, and the winding device 17 acts on the flux-cored wire 2. After the winding device 17 is activated, the flux-cored wire 2 moves along the preset track 15. The collecting part 13 can simultaneously collect the outer contour image of the bending part 21 bent by the middle two acting parts 12, and the controller 16 can simultaneously obtain the actual outer contour image of the bending part 21 bent by the middle two acting parts 12 Compared with the preset outer contour image, it can be simultaneously determined whether the actual outer contour image of the bending portion 21 bent by the middle two acting members 12 is within the coverage of the preset outer contour image.

The working principle of the flux-cored wire filling rate detection equipment 1 in Figure 1:

According to factors such as the material and diameter of the flux-cored welding wire 2, the preset curvature to which the bending portion 21 needs to be bent is determined, and the target position of each acting member 12 is determined according to the value of the preset curvature. Rotating the handle 18 causes the acting member 12 to move along the axial direction of the adjusting member 14 and holding the handle 18 to change the position of the adjusting member 14 in the first preset direction, thereby changing the position of the acting member 12 in the first preset direction. After moving the acting part 12 to the target position, it acts as the winding device 17, the collecting part 13 and the controller 16. The flux-cored welding wire 2 moves along the preset track 15, and the collecting part 13 simultaneously collects the bending of the middle two acting parts 12 For the outer contour image of the bent portion 21, the controller 16 compares the actual outer contour image of the bent portion 21 bent by the middle two acting members 12 with the preset outer contour image at the same time, and determines the middle two functions at the same time Whether the actual outer contour image of the bending portion 21 bent by the piece 12 is within the coverage of the preset outer contour image, if the actual outer contour image of the bending portion 21 is outside the coverage of the preset outer contour graphic, control The controller 16 controls the executive part 19 to give an alarm.

The above are only specific implementations of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, All should be covered within the protection scope of this disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Industrial applicability

In summary, the present disclosure provides a method, a controller, and a device for detecting the filling rate of flux-cored welding wire, which can compare the actual deflection when the bending portion is bent to a preset curvature and the preset The difference in the deflection range determines whether the actual filling rate of the bending part is within the preset range, which can effectively improve the production efficiency and effectively reduce the waste of materials.

Claims

A method for detecting the filling rate of flux-cored welding wire, which is characterized in that it comprises:

Obtain the actual deflection when the bending part of the flux-cored wire is bent to a preset curvature;

Compare the actual deflection with the preset deflection range;

According to the result of the comparison, it is determined whether the actual filling rate of the bent portion is within a preset range.
The method for detecting the filling rate of flux-cored welding wire according to claim 1, wherein the step of obtaining the actual deflection when the bending portion of the flux-cored welding wire is bent to a preset curvature comprises:

Acquiring the actual outer contour image when the bending portion is bent to reach the preset curvature;

The step of comparing the actual deflection with a preset deflection range includes:

The actual outer contour image is compared with the preset outer contour image.
The method for detecting the filling rate of flux-cored welding wire according to claim 2, wherein after the step of determining whether the actual filling rate of the bent portion is within a preset range according to the result of the comparison, the The detection methods of cored wire filling rate include:

If the actual outer contour image exceeds the preset outer contour image, the actuator is controlled to perform a reminder action.
The method for detecting the filling rate of a flux-cored wire according to claim 1, wherein before the step of obtaining the actual deflection when the bent portion of the flux-cored wire is bent to reach a preset curvature, the flux-cored wire The filling rate detection method also includes:

The bending portion is bent to reach the preset curvature.
The method for detecting the filling rate of flux-cored welding wire according to claim 4, wherein the step of bending the bending portion to reach the preset curvature comprises:

All the plurality of bending parts are bent to reach the preset curvature;

The step of obtaining the actual deflection when the bent portion of the flux-cored welding wire is bent to a preset curvature includes:

Obtain the actual deflection when the plurality of bending parts are bent to reach the preset curvature.
The method for detecting the filling rate of a flux-cored welding wire according to claim 5, wherein the step of bending a plurality of the bending parts to reach the preset curvature comprises:

The directions in which the two adjacent bending parts are bent are opposite.
The method for detecting the filling rate of flux-cored welding wire according to claim 4, wherein the step of bending the bending portion to reach the preset curvature comprises:

The acting member continuously acts on the flux-cored wire during the movement of the flux-cored wire along the preset orbit, so that the different bending parts of the flux-cored wire are bent to the preset curvature.
The method for detecting the filling rate of a flux-cored wire according to claim 7, wherein the step of causing the acting member to continuously act on the flux-cored wire during the movement of the flux-cored wire along a preset orbit comprises :

A plurality of the acting members continuously act on different parts of the flux-cored welding wire while the flux-cored welding wire moves along a preset orbit.
The method for detecting the filling rate of flux-cored wire according to claim 4, characterized in that, before the step of bending the bent portion to reach the preset curvature, the method for detecting the filling rate of the flux-cored wire further comprises :

The flux-cored welding wire is moved along a preset track.
A controller, characterized in that it comprises:

An acquiring module configured to acquire the actual deflection when the bending part of the flux-cored welding wire is bent to reach a preset curvature;

A comparison module configured to compare the actual deflection with a preset deflection range;

The determining module is configured to determine whether the actual filling rate of the bending portion is within a preset range according to the result of the comparison.
A testing equipment for the filling rate of flux-cored welding wire, which is characterized in that it comprises an acting part, a collecting part and a controller;

The acting member is configured to bend the bending portion to the preset curvature, and the collecting member is configured to output the first deflection characterizing the actual deflection when the bending portion is bent to the preset curvature. Signal, the controller communicates with the collecting part, and the controller is configured to execute the method for detecting the filling rate of flux-cored welding wire according to any one of claims 1-9.
The flux-cored welding wire filling rate detection equipment according to claim 11, wherein the number of the acting parts is multiple, and the plurality of acting parts are arranged at intervals to form a preset track, and the flux-cored welding wire runs along the The extension direction of the preset track extends, and a plurality of the acting members respectively act on different parts of the flux-cored welding wire, so that the different parts of the flux-cored welding wire are all bent into the curvature of the predetermined curvature. Bending part.
The flux-cored wire filling rate detection device according to claim 12, wherein the flux-cored wire filling rate detection device further comprises a winding device, and the winding device acts on the flux-cored wire to make the The flux-cored welding wire is movable along the extension direction of the preset track.
The flux-cored wire filling rate detection device according to claim 12, wherein the two adjacent acting members are configured to act on opposite sides of the flux-cored wire, so that the two adjacent The concave sides of the two bending parts formed by the acting member acting on the flux-cored welding wire have opposite directions.
The flux-cored wire filling rate detection device according to claim 12, wherein a plurality of said action parts are distributed along a first preset direction, and said flux-cored wire filling rate detection device further comprises a plurality of adjusting parts, so The number of the adjusting parts is the same as the number of the acting parts, and corresponds to one-to-one. The adjusting parts are drivingly connected with the corresponding acting parts, so that the acting parts are movable in a second preset direction, wherein, The first preset direction and the second preset direction are set at an included angle k, 0°<k<180°.
The flux-cored welding wire filling rate detection device according to claim 15, wherein each of the adjusting members is movable along the first preset direction to drive the corresponding acting member along the first preset direction. Set the direction to move.
The flux-cored wire filling rate detection device according to any one of claims 11-16, wherein the flux-cored wire filling rate detection device further comprises an executive part, and the executive part communicates with the controller. The executor is configured to execute a reminder action under the control of the controller.