CN211072176U

CN211072176U - Welding device

Info

Publication number: CN211072176U
Application number: CN201922162582.4U
Authority: CN
Inventors: 王兴阳; 王帅; 苏帅; 魏玉程
Original assignee: Panasonic Welding Systems Tangshan Co Ltd
Current assignee: Panasonic Welding Systems Tangshan Co Ltd
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-07-24
Anticipated expiration: 2029-12-05

Abstract

The disclosure relates to the technical field of welding, and provides a welding device which comprises a welding gun, a detector, a wire feeder and a control system, wherein the detector is arranged on the welding gun and used for acquiring size information of a welding seam; the wire feeder and the welding gun are arranged at intervals and used for feeding welding wires to the welding gun; the control system comprises a power supply part, the power supply part is electrically connected with the welding gun and the wire feeder, and the control system is connected with the detector to receive the size information. The welding device can obtain the size information of the welding seam in the welding process by arranging the detector on the welding gun, and can transmit the obtained size information to the control system.

Description

Welding device

Technical Field

The present disclosure relates to the field of welding technology, and more particularly, to a welding device.

Background

At present, the welding power supply can select the welding wire type, the shielding gas, the welding process and other parameters through an operation panel, a computer and the like, so as to obtain the expected welding seam.

At the present stage, after a welding seam is obtained, the size of the welding seam, such as the weld width, the weld height, the size of a welding leg and the like, needs to be determined, whether the welding seam meets the requirements or not is determined through the data, and if the welding seam meeting the requirements is desired to be obtained, a user conducts a large number of tests to grope the welding process. Because the size of the welding seam needs to be determined after the welding is finished, namely the feedback of whether the size of the welding seam meets the requirement is delayed, the requirement of automatic welding is difficult to meet.

SUMMERY OF THE UTILITY MODEL

It is a primary object of the present disclosure to overcome at least one of the above-mentioned deficiencies of the prior art and to provide a welding device.

The utility model provides a welding device, include:

a welding gun;

the detector is arranged on the welding gun and used for acquiring the size information of the welding seam;

the wire feeder is arranged at intervals with the welding gun and is used for feeding welding wires into the welding gun;

and the control system comprises a power supply part, the power supply part is electrically connected with the welding gun and the wire feeder, and the control system is connected with the detector to receive the size information.

In one embodiment of the present invention, the detector is an infrared sensor or an ultrasonic sensor.

In an embodiment of the present invention, the control system further includes:

the controller is connected with the power supply part;

and the communicator is connected with the detector and the controller so as to receive the size information and transmit the size information to the controller.

In an embodiment of the present invention, the control system further includes:

and the input mechanism is used for inputting standard size information of the welding seam.

In one embodiment of the present invention, the input mechanism includes an operation panel and a display.

In an embodiment of the present invention, the welding device further includes:

the two ends of the first connecting circuit are respectively connected with the power supply part and the wire feeder;

two ends of the second connecting circuit are respectively connected with the wire feeder and the welding gun;

and a third connecting line, both ends of which are respectively connected with the power supply part and the welding parent metal.

In one embodiment of the present invention, the welding gun includes an installation cavity, and the detector is disposed in the installation cavity;

wherein, the installation cavity has an opening, and the opening is towards welding base metal to make the detector towards welding base metal.

In an embodiment of the present invention, the welding device further includes:

and the gas storage mechanism is used for storing the protective gas, so that when the welding gun operates, the gas storage mechanism is used for providing the protective gas for the welding gun.

In one embodiment of the present invention, the gas storage mechanism is provided with a gas pipe, and the gas pipe is connected to at least one of the wire feeder and the welding gun.

In an embodiment of the present invention, the wire feeder is provided with a pipe channel, and the air pipe passes through the pipe channel and is connected to the welding gun.

The utility model discloses a welding set can obtain the size information of welding seam in welding process through being provided with the detector on welder to can compare the size information transmission who obtains to control system, need accomplish among the prior art and confirm welding seam size after the welding, the utility model discloses a welding set has improved feedback efficiency, satisfies automatic welding demand.

Drawings

Various objects, features and advantages of the present disclosure will become more apparent from the following detailed description of preferred embodiments thereof, when considered in conjunction with the accompanying drawings. The drawings are merely exemplary illustrations of the disclosure and are not necessarily drawn to scale. In the drawings, like reference characters designate the same or similar parts throughout the different views. Wherein:

FIG. 1 is a schematic diagram illustrating a welding apparatus according to an exemplary embodiment;

FIG. 2 is a schematic diagram illustrating a structure of a welding parent metal according to an exemplary embodiment;

fig. 3 is a schematic structural view illustrating a welding parent material according to another exemplary embodiment.

The reference numerals are explained below:

1. welding seams; 2. welding a base material; 3. welding an arc; 10. a welding gun; 20. a detector; 30. a wire feeder; 31. welding wires; 40. a control system; 41. a power supply unit; 42. a controller; 43. a communicator; 50. a first connection line; 51. a second connection line; 52. a third connection line; 60. a gas storage mechanism; 61. an air supply pipe.

Detailed Description

Exemplary embodiments that embody features and advantages of the present disclosure are described in detail below in the specification. It is to be understood that the disclosure is capable of various modifications in various embodiments without departing from the scope of the disclosure, and that the description and drawings are to be regarded as illustrative in nature, and not as restrictive.

In the following description of various exemplary embodiments of the disclosure, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various exemplary structures, systems, and steps in which aspects of the disclosure may be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps may be utilized and structural and functional modifications may be made without departing from the scope of the present disclosure. Moreover, although the terms "over," "between," "within," and the like may be used in this specification to describe various example features and elements of the disclosure, these terms are used herein for convenience only, e.g., in accordance with the orientation of the examples in the figures. Nothing in this specification should be construed as requiring a specific three dimensional orientation of structures in order to fall within the scope of this disclosure.

An embodiment of the present invention provides a welding device, please refer to fig. 1, the welding device includes: a welding gun 10; the detector 20 is arranged on the welding gun 10 and used for acquiring the size information of the welding seam 1; the wire feeder 30 is arranged at a distance from the welding gun 10, and is used for feeding a welding wire 31 to the welding gun 10; the control system 40, the control system 40 including a power supply 41, the power supply 41 electrically connected to both the welding gun 10 and the wire feeder 30, and the control system 40 connected to the detector 20 to receive the dimensional information.

The utility model discloses a welding set of an embodiment can obtain the size information of welding seam 1 in welding process through be provided with detector 20 on welder 10 to can compare the size information transmission who obtains to control system 40 and need accomplish among the prior art and confirm the welding seam size after the welding, the utility model discloses a welding set has improved feedback efficiency, satisfies automatic welding demand.

In one embodiment, the dimensional information includes at least one of a melt width a, a height b, and a fillet c. In the welding process, the time for solidifying the molten pool is short, so that the detector 20 can obtain the size information of part of the welding seam 1 when the welding is not completely finished, and because the welding process parameters are fixed, the standard size information of the formed welding seam 1 after a specific time period of welding can be determined according to the welding standard, and the size information obtained by the detector 20 in the specific time period can be compared with the standard size information to determine whether the size information of the formed welding seam 1 meets the requirements, so that whether the welding process parameters meet the requirements can be judged. The judgment process can occur in the welding process, so that the real-time performance of size information feedback can be improved, and the size information of the welding seam 1 in multiple time periods can be acquired under the condition of longer welding time, so that the reference value is higher. In addition, if the welding time allows, after the size information is acquired for the first time, if the size information does not meet the requirement, the control system 40 may also adjust the welding process parameters, that is, the welding process parameters may be adjusted correspondingly after the size information of the weld 1 is acquired, so as to improve the welding quality.

In one embodiment, the detector 20 is an infrared sensor or an ultrasonic sensor. Considering that the detector 20 is used to obtain at least one of the weld width a, the residual height b, and the fillet c of the weld 1, referring to fig. 2 and 3, it can be seen that the above three dimensions are dimensions between the weld 1 and the welding parent metal 2, and do not relate to internal dimensions, so that the sensor for obtaining dimensional information can be used to obtain dimensional information of the weld 1 on the premise that high temperature protection measures are available, such as an infrared sensor, an ultrasonic sensor, and the like, and can also be combined with a visual detection mechanism to determine dimensional information.

In one embodiment, the infrared sensor detects a temperature field in a weld zone (the size of the detected weld zone is determined according to the coverage of the sensor) which is just solidified, the temperature of the weld zone is obviously different from that of the welding parent metal 2, the temperature of the weld zone is very high, the temperature of the welding parent metal 2 is low, so that two temperature field zones with obviously different temperatures are formed, the infrared sensor can measure the weld fusion width size according to the size of the temperature field zones, and the weld reinforcement is calculated according to the distance difference of reflected light rays of infrared rays at the welding parent metal 2 and the weld. And calculating the size of the welding leg according to the triangular relation between the weld bead fusion width and the welding leg. The ultrasonic sensor transmits ultrasonic waves to a weld joint area which is just solidified (the size of the detected weld joint area is determined according to the coverage area of the sensor), size detection is carried out, the height of the weld joint and the size of the fusion width are calculated according to the difference of the positions of the ultrasonic waves reflected back from the weld joint area and the welding base material area, and the size of a welding leg is calculated according to the triangular relation.

As shown in fig. 1, the control system 40 further includes: a controller 42, the controller 42 being connected to the power supply unit 41; a communicator 43, the communicator 43 being connected to both the detector 20 and the controller 42 to receive the size information and to transmit the size information to the controller 42.

In one embodiment, the control system 40 comprises a power supply 41, a controller 42, and a communicator 43, wherein the power supply 41 is configured to provide power, the controller 42 is configured to control parameters of the welding process, the wire feeding speed of the wire feeder 30, and the like, the communicator 43 is configured to transmit size information obtained by the detector 20 to the controller 42, the controller 42 is also configured to determine whether the weld 1 meets the requirements according to the size information, and if not, the controller 42 is further configured to adjust parameters of the welding process, such as the value of the current provided by the power supply 41 to the welding gun 10 and the wire feeding speed of the wire feeder 30.

In one embodiment, the signal transfer between the communicator 43 and the detector 20 may be either via a signal line or wirelessly.

In one embodiment, in an ideal state, the standard weld size corresponds to a set of welding process parameters, and in an actual welding process, due to external influences such as environment, the obtained size information often has a certain deviation from the standard weld size, and the deviation can be compensated by adjusting the welding process parameters, so that after the size information is obtained by the detector 20, the size information can be compared with the standard size information to determine the difference of the size information, then the welding process parameters are adjusted, and the controller 42 can also automatically adjust the welding process parameters.

In one embodiment, the control system 40 further comprises: and the input mechanism is used for inputting standard size information of the welding seam 1. During the welding process, the control system 40 will have a welding process parameter library inside, so that after the standard size information of the weld 1 is input into the control system 40 through the input mechanism, the control system will automatically determine a set of welding process parameters.

In one embodiment, the input mechanism includes an operation panel and a display. The operation panel and the display may be used to determine the accuracy of the input information and may also be used to display the size information acquired by the detector 20.

In one embodiment, the input mechanism may be a power operation panel, a computer, etc., and the input mechanism may be configured to facilitate the operator to use, the operator may select the weld width, the weld height, and the weld leg size of the weld 1 through the input mechanism before the welding operation, and the control system 40 may automatically match the optimal welding process parameters according to the parameters of the weld width, the weld height, and the weld leg size set by the operator. In the welding process, the detector 20 can detect the fusion width a, the residual height b and the welding leg c of the welding seam 1 in real time, and when the size deviation occurs, the control system 40 can automatically adjust the welding process parameters.

Before welding, an operator sets the required weld joint size through an input mechanism, for example, the weld leg is larger than or equal to 8mm, the fusion width is larger than or equal to 10mm, and the residual height is smaller than or equal to 3 mm. During the welding process, the detector 20 can continuously detect the size of the weld zone which is solidified and formed, and when the size is deviated or the deviation is large, the controller 42 can timely adjust the welding parameters. For example, the detector detects the size of the weld during welding, detects that the weld fusion width is 9mm, and the leg size is 7mm, both of which are smaller than the set standard values, then the controller 42 will increase the welding specification, i.e. increase the welding current and the welding voltage, and decrease the welding speed, e.g. the welding current is adjusted from 300A to 320A, the voltage is adjusted from 30V to 31V, and the welding speed is adjusted from 0.4m/min to 0.35m/min (where the adjustment amount of the welding specification has a certain functional relationship with the size difference between the set standard size and the detected size, and the specific functional relationship can be determined according to experiments).

As shown in fig. 1, the welding apparatus further includes: a first connection line 50, both ends of the first connection line 50 are respectively connected with the power supply part 41 and the wire feeder 30; a second connection line 51, wherein two ends of the second connection line 51 are respectively connected with the wire feeder 30 and the welding gun 10; third connection line 52, both ends of third connection line 52 are connected to power supply 41 and welding preform 2, respectively. The first connecting line 50, the second connecting line 51, the welding wire 31, the welding arc 3, the welding parent metal 2, and the third connecting line 52 form a completed current loop, thereby ensuring that the power supply portion 41 supplies power to the wire feeder 30 and the welding gun 10.

In one embodiment, the torch 10 includes a mounting cavity, with the detector 20 disposed within the mounting cavity; wherein the mounting cavity has an opening facing the welding parent metal 2 such that the detector 20 faces the welding parent metal 2. The detector 20 may be protected from damage by positioning the detector 20 within the mounting cavity. The opening is provided to ensure that the detector 20 is not disturbed during the process of collecting the size information.

As shown in fig. 1, the welding apparatus further includes: and the gas storage mechanism 60 is used for storing the protective gas, so that when the welding gun 10 operates, the gas storage mechanism 60 is used for providing the protective gas for the welding gun 10. The gas storage mechanism 60 is mainly used for providing protective gas during the welding process, and preventing outside air from entering the welding seam 1, thereby affecting the welding quality.

In one embodiment, the gas storage mechanism 60 is provided with a gas feed tube 61, and the gas feed tube 61 is connected to at least one of the wire feeder 30 and the welding gun 10.

In one embodiment, the wire feeder 30 is provided with a conduit passage through which the gas conduit 61 is connected to the welding gun 10. The gas outlet of the gas feed tube 61 is movable with the torch 10 to ensure that the shielding gas is fed in place.

In one embodiment, the welding gun 10 may be located on a mechanism having an automatic welding function, such that automatic welding may be achieved throughout the welding process, and also automatic adjustment of welding process parameters may be achieved.

The welding device of the utility model can select the fusion width, the surplus height and the welding leg size of the welding seam, and comprises a welding power supply (control system 40), a wire feeder 30, a welding gun 10 and a gas storage bottle (gas storage mechanism 60); the welding power supply comprises a controller 42, a power supply (power supply part 41) and a communication device (communicator 43), wherein the controller 42 is in signal connection with the infrared sensor (detector 20) through the communication device, and the power supply provides welding current for the welding gun 10; the wire feeder 30 is connected between the welding gun 10 and the welding power supply, the gas storage cylinder is connected to the wire feeder 30, and the wire feeder 30 supplies the welding wire 31 to the welding gun 10; the infrared sensor is used for the weld width, the weld reinforcement and the weld leg size of the weld joint in the welding process, key information of the weld joint size is sent to the controller 42 through the communication device, and the controller 42 is matched with relevant welding control parameters according to the key information of the weld joint size, so that the stability of the weld joint size in the welding process is ensured.

The utility model discloses a welding set can be convenient for the operator according to the concrete size demand of welding seam and quick selection welding process parameter. The welding device can accurately match the fusion width, the surplus height and the leg size of a welding seam.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and exemplary embodiments be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A welding device, comprising:

a welding gun (10);

a detector (20), the detector (20) being arranged on the welding gun (10) for acquiring dimensional information of the weld (1);

the wire feeder (30) is arranged at a distance from the welding gun (10) and used for feeding a welding wire (31) into the welding gun (10);

a control system (40), the control system (40) including a power supply portion (41), the power supply portion (41) being electrically connected to both the welding gun (10) and the wire feeder (30), and the control system (40) being connected to the detector (20) to receive the dimensional information.

2. Welding device according to claim 1, characterized in that the detector (20) is an infrared sensor or an ultrasonic sensor.

3. The welding device according to claim 1, wherein the control system (40) further comprises:

a controller (42), wherein the controller (42) is connected with the power supply part (41);

a communicator (43), the communicator (43) being connected to both the detector (20) and the controller (42) to receive the size information and to communicate the size information to the controller (42).

4. The welding device according to claim 1, wherein the control system (40) further comprises:

an input mechanism for inputting standard dimensional information of the weld (1).

5. The welding device of claim 4, wherein the input mechanism comprises an operator panel and a display.

6. The welding device of claim 1, further comprising:

a first connection line (50), wherein two ends of the first connection line (50) are respectively connected with the power supply part (41) and the wire feeder (30);

a second connection line (51), wherein two ends of the second connection line (51) are respectively connected with the wire feeder (30) and the welding gun (10);

and a third connection line (52), wherein both ends of the third connection line (52) are connected to the power supply unit (41) and the welding base material (2), respectively.

7. Welding device according to claim 1, wherein the welding gun (10) comprises a mounting cavity, the detector (20) being arranged in the mounting cavity;

wherein the mounting cavity has an opening facing the welding parent metal (2) such that the detector (20) faces the welding parent metal (2).

8. The welding device of claim 1, further comprising:

a gas storage mechanism (60), the gas storage mechanism (60) being configured to store shielding gas such that when the welding gun (10) is in operation, the gas storage mechanism (60) is configured to provide the shielding gas to the welding gun (10).

9. The welding device according to claim 8, wherein a gas supply pipe (61) is provided on the gas storage mechanism (60), and the gas supply pipe (61) is connected to at least one of the wire feeder (30) and the welding gun (10).

10. The welding device according to claim 9, wherein a conduit channel is provided on the wire feeder (30), and the gas feed pipe (61) is connected to the welding gun (10) after passing through the conduit channel.