JP2024003604A - welding equipment - Google Patents

Abstract

To provide welding equipment that can secure safety of a welding worker, when the welding worker falls down a remote controller unintentionally or the like.SOLUTION: Welding equipment 70 comprises a welding power source 10 and a remote controller 20. The remote controller 20 has an operation input change 21, a second control portion 23 and an acceleration detecting portion 24. A first control portion 12 and the second control portion 23 can communicate with each other. When the second control portion 23 determines that the remote controller 20 has freely fallen or impact is applied to the remote controller 20 on the basis of a detection signal of the acceleration detecting portion 24, the second control portion 23 transmits the determined result to the first control portion 12 of the welding power source 10. After receiving the determined result, the first control portion 12 prohibits change of a welding condition performed by the operation input portion 21.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to a welding device including a remote controller that transmits work details input by a welding operator to a welding power source.

Conventionally, welding equipment that was configured to allow welding conditions to be set remotely is now equipped with a condition change prohibition function that prevents the welding operator from changing the welding conditions, from the perspective of stabilizing welding quality. has been proposed (for example, see Patent Document 1).

According to this configuration, a welding operator sets the welding power source to disable changing the welding conditions via the remote controller. By doing this, it is possible to prevent the welding conditions from being changed when it is not desired to permit the welding conditions to be changed. This makes it possible to fix and release the welding conditions with a simple structure and at low cost.

International Publication No. 2012/157157

However, while the conventional configuration disclosed in Patent Document 1 can deal with anticipated troubles such as input errors by operators, it is difficult to adequately deal with unintended troubles. . For example, if a welding worker accidentally drops a remote controller, unintended conditions may be input to the welding apparatus due to a malfunction of the remote controller. In particular, when a welding worker manually operates a welding torch, if an unintended welding wire feeding operation or gas blowout occurs, the welding worker's physical safety may not be ensured.

Additionally, if a welder accidentally drops the remote controller, welding may occur under unintended conditions until the welder picks it up and operates it again, resulting in poor welding quality or poor welding. There was a risk that it could cause

Additionally, if a shock exceeding a certain level is applied to the remote controller, as mentioned above, there is a risk that the physical safety of the welding worker may not be ensured, or it may cause a decline in welding quality or welding defects. .

The present disclosure has been made in view of the above, and an object thereof is to provide a welding device that can ensure the safety of welding workers in the case where a remote controller is accidentally dropped.

In order to achieve the above object, a welding device according to the present disclosure is a welding device including at least a welding power source and a remote controller, wherein the welding power source has a main circuit that supplies welding power to a welding electrode, and a welding device that includes a welding power source and a remote controller. The remote controller includes at least a first control section that controls the welding power supplied from a circuit, and the remote controller includes an operation input section that receives an operation input from a welding operator, and a content input to the operation input section. and an acceleration detection section that detects acceleration applied to the remote controller, and the first control section and the second control section are mutually connected to each other. The second control section is configured to be able to communicate with each other based on the detection signal of the acceleration detection section, and the second control section determines whether or not the remote controller is free falling, or whether or not the remote controller is subjected to an impact of a predetermined level or more. If it is determined that the remote controller is free-falling or that an impact of more than a predetermined value is applied to the remote controller, the second control unit converts the determination result into an error. The error information is transmitted to the first control section as information, and the first control section is configured to prohibit changes in welding conditions after receiving the error information.

According to the present disclosure, the safety of welding workers can be ensured even if the remote controller is accidentally dropped or a shock of more than a predetermined value is applied. Further, it is possible to prevent unintentional changes in welding conditions, thereby preventing deterioration in welding quality and occurrence of welding defects.

1 is a schematic configuration diagram of a welding device according to Embodiment 1. FIG. FIG. 3 is an external view of a remote controller. 2 is a flowchart showing a procedure for changing welding conditions using a remote controller. FIG. 2 is a schematic configuration diagram of a welding device according to a second embodiment.

Embodiments of the present disclosure will be described below based on the drawings. Note that the following description of preferred embodiments is essentially just an example, and is not intended to limit the present disclosure, its applications, or its uses.

(Embodiment 1)
[Configuration of welding equipment]
FIG. 1 shows a schematic configuration diagram of a welding apparatus according to Embodiment 1, and FIG. 2 shows an external view of a remote controller.

As shown in FIG. 1, the welding device 70 is an arc welding device that includes a welding power source 10, a remote controller 20, a wire feeding device 30, and a welding torch (welding electrode) 50.

The welding power source 10 includes at least a main circuit 11 that generates welding power, a first control section 12, and a storage section 13. Main circuit 11 supplies welding power to welding wire 60 held by welding torch 50 . The main circuit 11 includes a transformer, a power switch, etc. (not shown), and in the example shown in this embodiment, the positive terminal is connected to the welding wire 60 via the wire feeding device 30, and the negative terminal is connected to the ground wire 41. It is connected to the base material W via.

The first control unit 12 is composed of a CPU (Central Processing Unit), an MCU (Micro Controller Unit), or a combination thereof. Note that the first control unit 12 may be configured with a plurality of CPUs, MCUs, or a combination thereof.

The first control section 12 reads out a welding program stored in advance in the storage section 13 based on input contents from the remote controller 20, and controls the operation of the main circuit 11. Further, the first control unit 12 changes welding conditions and transmits a wire feeding command to the wire feeding device 30 based on input contents from the remote controller 20 .

The storage unit 13 is composed of a semiconductor memory, such as a RAM (Random Access Memory) or an SSD (Solid State Drive). The storage unit 13 stores welding programs and welding conditions for executing the programs. Further, the storage unit 13 may temporarily store input contents from the remote controller 20.

Note that instead of providing the storage unit 13 in the welding power source 10, an external memory may be connected to the welding power source 10. The external memory may be, for example, an SD (registered trademark) card or a USB (trademark) memory, or a server configured to be able to communicate with the welding power source 10.

Further, an input section (not shown) may be separately provided in the welding power source 10, and changes in welding conditions, etc. may be input from the input section. For example, a touch panel or the like is used as the input section.

The remote controller 20 includes at least an operation input section 21 , a display section 22 , a second control section 23 , and an acceleration detection section 24 . Usually, a welding operator holds the remote controller 20 and operates it manually.

As shown in FIG. 2, the operation input unit 21 includes a HOME button 25, operation buttons 26a to 26d, and jog dials 27a and 27b, and accepts operation details from the welding operator. For example, the welding operator can switch the display unit 22 to the initial screen by operating the HOME button 25.

The operation buttons 26a to 26d correspond to switching the adjustment target of welding conditions, for example, by pressing the operation button 26a or 26d, the welding current voltage at the start of welding, or the operation button 26c or 26d is pressed. This makes it possible to adjust the welding current voltage at the end of welding.

The operator presses the operation button 26a and turns the jog dial 27a to change the welding current value at the start of welding. The operator presses the operation button 26a and turns the jog dial 27b to change the welding voltage value at the start of welding. However, the correspondence between the operation buttons 26a to 26d and the types of welding conditions and the method of operating the operation buttons 26a to 26d are not particularly limited to those shown here.

Furthermore, the items selected and the values input using the operation input section 21 are configured to be displayed on the display section 22 in real time. By doing so, the welding operator can change the welding conditions while checking the input contents.

The acceleration detection unit 24 is composed of a known three-axis digital output acceleration sensor (for example, ADXL345 manufactured by ANALOG DEVICES). If the position of the remote controller 20 changes due to some factor, the acceleration detection unit 24 detects the acceleration applied to the remote controller 20 during operation in each of the three axial directions. Note that one of the three axial directions is the direction of gravity, the other two directions are directions perpendicular to the direction of gravity, and the two directions are directions perpendicular to each other. Note that the acceleration detection section 24 detects acceleration at a predetermined sampling frequency, for example, several hundred Hz to 3,000 Hz, and transmits it to the second control section 23.

The second control unit 23, like the first control unit 12, is composed of a CPU, an MCU, or a combination thereof. The second control section 23 transmits the contents inputted by the welding operator by operating the operation input section 21 , such as a change value of the set voltage, to the first control section 12 of the welding power source 10 . Further, the remote controller 20 receives the welding conditions in use from the first control section 12 of the welding power source 10, and displays the contents on the display section 22. Note that even if the second control section 23 transmits the input contents to the operation input section 21 to the storage section 13 of the welding power source 10, and the first control section 12 reads the input contents from the storage section 13, good.

Further, the second control unit 23 receives the detection signal from the acceleration detection unit 24 and determines whether an impact of a predetermined value or more is being applied to the remote controller 20 or whether the remote controller 20 is freely falling. Note that these criteria will be described later. Further, the second control section 23 transmits the determination result based on the detection signal of the acceleration detection section 24 to the first control section 12.

The display section 22 is composed of, for example, a liquid crystal display, and as described above, visualizes and displays the welding conditions and the like that are being used in the welding power source 10. Note that the display section 22 may be configured with a touch panel. In that case, part or all of the operation input section 21 may be shared with the display section 22.

In the example shown in FIG. 1, the remote controller 20 is connected to the welding power source 10 via the signal lines 31 and 32 and the wire feeding device 30, but the remote controller 20 is not particularly limited to this example. For example, the welding cable 40 and the signal line 31 may be integrated, and the signal line 31 may be branched from the middle and connected to the remote controller 20. Alternatively, the signal line 31 may be directly connected to the welding power source 10. Alternatively, the second control section 23 of the remote controller 20 and the first control section 12 of the welding power source 10 may be configured to be able to communicate wirelessly with each other. In that case, the signal lines 31 and 32 are omitted.

Wire feeding device 30 feeds welding wire 60 toward base material W based on a wire feeding command from welding power source 10 or remote controller 20. Note that a so-called reverse feeding operation may be performed in which the welding wire 60 is fed away from the base material W.

The welding cable 40 is a composite cable in which a welding wire 60 supply pipe (not shown) and a shielding gas supply pipe (not shown) are integrated.

Welding torch 50 is manually operated by a welding operator, and welding wire 60 held by welding torch 50 is fed toward base metal W. A predetermined welding power is supplied to the welding wire 60, and the melted tip of the welding wire 60 moves to the base metal W, and welding progresses sequentially. Note that shielding gas is sprayed from the welding cable 40 onto the welding location.

In this embodiment, a so-called consumable electrode type arc welding device that melts the welding wire 60 and transfers it to the base metal W has been described, but it is also possible that the welding device 70 is a non-consumable electrode type arc welding device. Good too.

[Procedure for changing welding conditions]
FIG. 3 shows a procedure for changing welding conditions using a remote controller.

When changing the welding conditions for the base material W, the welding operator operates the operation input section 21 of the remote controller 20. During operation, the first control unit 12 determines whether or not changes in welding conditions are prohibited (step S1). If the determination result is positive, that is, changes in welding conditions are prohibited, the The first control section 12 receives the determination result sent from the second control section 23, and prohibits changes in welding conditions (step S4).

If the determination result in step S1 is negative, that is, if the welding conditions can be changed, the second control unit 23 determines whether the remote controller 20 is free falling based on the detection signal of the acceleration detection unit 24. It is determined whether or not (step S2). Whether or not the remote controller 20 is free falling depends on whether the acceleration in the three axial directions detected by the acceleration detection unit 24 is substantially zero or not, and whether the acceleration is substantially zero or not. It is determined whether or not it has been maintained for a predetermined period.

As described above, the second control section 23 receives the detection signal from the acceleration detection section 24 at a predetermined sampling frequency. Therefore, if the period during which the acceleration in each of the three axial directions is substantially zero exceeds the threshold value, the second control unit 23 determines that the remote controller 20 is free falling. Note that it is presumed that the remote controller 20 falls freely when the welding operator accidentally drops the remote controller 20. The period during which it is determined that the remote controller 20 is free falling (free fall level Ts) is set in consideration of the case where the remote controller 20 is held in the hand or the remote controller 20 is operated while placed on a workbench, etc. be done.

For example, if the initial velocity of the remote controller 20 in the gravity direction immediately before falling is V0 and the free fall level Ts is set, if the remote controller 20 falls at a position exceeding a height H from the ground, the acceleration detection unit 24 Free fall can be detected, and the height H satisfies the relationship shown in equation (1).

H=V0×Ts+1/2×g×(Ts) ² ...(1)
Here, g is gravitational acceleration. Furthermore, in equation (1), the influence of air resistance is ignored.

Normally, the initial velocity V0 just before falling is zero. If Ts is 350 msec, the height H at which free fall can be detected is 60 cm. In other words, if the remote controller 20 falls freely from a height of 60 cm or more, it can be detected by the acceleration detection unit 24, and this value is an appropriate value for determining whether there is a free fall.

If the determination result in step S2 is positive, that is, if it is determined that the remote controller 20 is free falling, the process proceeds to step S4, and the first control unit 12 prohibits changes in the welding conditions.

On the other hand, if the determination result in step S2 is negative, that is, it is determined that the remote controller 20 is not free falling, the process proceeds to step S3.

In step S3, the second control section 23 determines whether or not an impact of a predetermined value or more is applied to the remote controller 20 based on the output signal from the acceleration detection section 24.

Whether or not a shock of a predetermined value or more is applied to the remote controller 20 is determined by whether or not a value exceeding a predetermined threshold value is detected in any of the three axial accelerations detected by the acceleration detection unit 24. will be judged. Alternatively, it is determined whether or not a shock of a predetermined value or more is being applied to the remote controller 20 based on whether the sum of accelerations in multiple axis directions exceeds another threshold value. If acceleration exceeding a threshold is detected in any of the three axes, or if the sum of accelerations in multiple axes exceeds another threshold, the second control unit 23 It is determined that an impact greater than a predetermined value is applied to the controller 20.

Note that the threshold values may be different in each of the three axial directions. Further, these threshold values are usually values obtained by adding a predetermined value to the acceleration applied while operating the remote controller 20. By doing so, erroneous detection by the second control section 23 is prevented. Note that the acceleration applied while operating the remote controller 20 is determined by taking into consideration, for example, the acceleration when a welding worker carrying the remote controller 20 moves, and the acceleration applied to the remote controller 20 due to hand shake.

If the determination result in step S3 is negative, that is, if it is determined that no impact greater than a predetermined value has been applied to the remote controller 20, the first control unit 12 permits a change in the welding conditions (step S5), and Finish changing the conditions.

That is, the first control section 12 accepts the operation details of the remote controller 20 by, for example, setting the signal from the second control section 23 in an enabled state. Then, the welding conditions that have been read out or stored in the storage unit 13 are allowed to be changed.

If the determination result in step S3 is affirmative, that is, if it is determined that an impact of a predetermined value or more is being applied to the remote controller 20, the process proceeds to step S4, and the first control unit 12 prohibits changing the welding conditions.

In addition, in step S4, when prohibiting the change of welding conditions, various aspects can be taken. For example, it may refuse to accept a signal from the second control unit 23 that includes the operation details of the remote controller 20, or it may be placed in a disabled state. Alternatively, upon receiving the signal from the second control section 23, the first control section 12 prohibits changes to the welding conditions that have been read out to itself or stored in the storage section 13.

Note that the order of performing step S2 and step S3 may be reversed, or step S2 and step S3 may be performed simultaneously.

[Effects etc.]
As explained above, the welding device 70 according to the present embodiment includes at least the welding power source 10 and the remote controller 20.

The welding power source 10 includes at least a main circuit 11 that supplies welding power to the welding torch (welding electrode) 50, and a first control section 12 that controls the welding power supplied from the main circuit 11.

The remote controller 20 includes an operation input section 21 that receives operation input from a welding worker, and a second control section 23 that transmits the contents input to the operation input section 21 to the first control section 12. It has at least an acceleration detection section 24 that detects acceleration.

The first control section 12 and the second control section 23 are configured to be able to communicate with each other. The second control unit 23 determines, based on the detection signal from the acceleration detection unit 24, whether the remote controller 20 is free falling or whether an impact of a predetermined value or more is applied to the remote controller 20. If it is determined that the remote controller 20 is free-falling or that an impact greater than a predetermined value has been applied to the remote controller 20, the second controller 23 transmits the determination result to the first controller 12 as error information. do.

The first control unit 12 is configured to prohibit changes in welding conditions after receiving the error information.

According to this embodiment, if an unintended impact is applied to the remote controller 20 or if the welding operator accidentally drops the remote controller 20, changing the welding conditions is prohibited. This makes it possible to avoid unintended troubles during welding and ensure the safety of welding workers. Further, deterioration in welding quality and occurrence of welding defects can be suppressed.

In order to prohibit a change in welding conditions, the first control section 12 may refuse to accept a signal from the second control section 23 after receiving the error information. Further, after receiving the error information, the first control unit 12 may disable the signal from the second control unit 23. By doing so, it is possible to ensure that changes in the welding conditions transmitted from the second control unit 23 are not reflected in the welding conditions held by the welding power source 10.

Note that if the unintended trouble that occurred in the remote controller 20, that is, the remote controller 20 is subjected to an impact or the remote controller 20 falls freely, is resolved, the prohibition on changing the welding conditions is lifted. In that case, in order to ensure the safety of welding workers, the state in which changes to welding conditions are prohibited is maintained until a predetermined period of time has elapsed after it is determined that the trouble has been resolved based on the detection signal of the acceleration detection unit 24. You may also do so. This predetermined period may be the same as the above-mentioned period T, or may be different. For example, the predetermined period may be shorter than period T.

Alternatively, the first control unit 12 receives a signal from the second control unit 23 after receiving the error information, and saves the signal in the storage unit 13 provided in the welding power source 10, or Changes to the welding conditions read out to the control unit 12 may be prohibited.

Even in this case, it is possible to ensure that changes in the welding conditions transmitted from the second control unit 23 are not reflected in the welding conditions held by the welding power source 10. Note that when the trouble that occurred in the remote controller 20 is resolved, that is, when the welding operator picks up the remote controller 20, the signal from the second control section 23 received by the first control section 12 is changed to the welding conditions. It may be set in advance in the first control unit 12 whether to use it for changing the operation input unit 21 or to require input again from the operation input unit 21.

In this embodiment, the welding device 70 further includes a wire feeding device 30 that feeds the welding wire 60 toward the base metal W, the welding torch 50 holds the welding wire 60, and the welding operator Operate manually.

As described above, with this configuration, the physical safety of the welding worker may not be ensured due to an unintended change in the welding conditions. On the other hand, according to the present embodiment, if the above-mentioned unintended trouble occurs in the remote controller 20, changing the welding conditions can be prohibited, so that the physical safety of the welding worker can be ensured.

The welding condition changing method according to the present embodiment includes a first step (step S1) in which the second control section 23 determines whether or not the welding conditions are in a change prohibited state; A second step (step S2) of determining whether or not the remote controller 20 is free-falling based on the detection signal from the acceleration detector 24; The controller 20 includes at least a third step (step S3) of determining whether or not an impact of a predetermined value or more is applied to the controller 20.

If at least one of the determination results in the first to third steps is positive, the first control unit 12 executes a fourth step (step S4) of prohibiting changes in welding conditions.

If the determination results of the first to third steps are all negative, the first control unit 12 executes a fifth step (step S5) of permitting a change in welding conditions.

By doing so, unintended troubles during welding can be avoided and the safety of welding workers can be ensured. Further, deterioration in welding quality and occurrence of welding defects can be suppressed.

Further, the above-described welding condition changing method may be stored in the welding power source 10 as a program. In that case, the information may be stored in the storage unit 13 or may be stored in a storage unit such as a RAM built into the first control unit 12.

That is, in the program of this embodiment, the first control section 12 and the second control section 23 of the remote controller 20 cooperate to execute the above-described welding condition changing method. That is, the program of this embodiment is a program for causing one or more processors (CPU or MPU) to execute the above-described welding condition changing method.

(Embodiment 2)
FIG. 4 shows a schematic configuration diagram of a welding device according to the second embodiment.

A welding apparatus 600 shown in FIG. 4 differs from the welding apparatus 70 of the first embodiment shown in FIG. 1 in that it includes a robot 100 and a robot control device 200. Further, this embodiment differs from the welding apparatus 70 of the first embodiment shown in FIG. 1 in that a welding control device 400 is provided separately from a welding power source 500.

The robot 100 is a welding robot used for arc welding. The robot 100 is a multi-axis, articulated robot having a plurality of servo motors 120. A welding torch 130 and a wire feeding device (not shown) are attached to the tip of the robot arm 110. By operating the robot 100, the welding torch 130 can be moved along a desired trajectory. Note that the configuration of the robot 100, such as the number of joint axes, horizontal multi-joint type, vertical multi-joint type, etc., may be selected as appropriate depending on the application.

The robot control device 200 has one or more CPUs or MCUs (none of which are shown) as an arithmetic control unit, and a memory such as a RAM or SSD as a storage unit. The robot control device 200 is connected to the robot 100 and controls the operation of the robot 100, specifically, the operation of the servo motor 120 that drives the joint axes. The robot control device 200 and the robot 100 are configured to be able to communicate with each other and to be able to send and receive data. Note that the mode of communication may be wired communication or wireless communication.

The teaching pendant 300 has the functions of the remote controller 20 shown in the first embodiment. That is, the teaching pendant 300 includes an operation input section 310, a display section 320, a second control section 23 (not shown), and an acceleration detection section 24 (not shown). Further, the teaching pendant 300 is configured to be able to change the welding conditions by the welding power source 500 by operating the operation input unit 310 and transmitting the contents to the welding control device 400.

Further, the teaching pendant 300 is configured to allow a welding operator to define the motion of the robot 100 and to display information about the robot 100 transmitted from the robot control device 200 on the display unit 320. Furthermore, the teaching pendant 300 is configured to teach the robot control device 200 the movement trajectory of the tip of the robot arm 110. By performing such teaching work, the robot control device 200 can move the welding torch 130 held at the tip of the robot 100 along a desired trajectory. Thereby, welding can be performed on the base material W along a desired trajectory.

In this case, the welding operator manually operates the teaching pendant 300. During manual operation, if the robot operation button 330 or the like of the teaching pendant 300 is removed from the welder's hand, the operation of the robot 100 is immediately stopped. Furthermore, the teaching pendant 300 is provided with an emergency stop button 340, and is configured to immediately stop the operation of the robot 100 if an abnormality occurs in the robot 100 while the robot 100 is being taught.

Welding control device 400 includes at least first control section 12 and storage section 13 shown in FIG. Welding power source 500 includes at least main circuit 11 shown in FIG. The functions of the main circuit 11, first control section 12, and storage section 13 are similar to those shown in the first embodiment. Note that welding control device 400 and welding power source 500 may include other components. For example, welding power source 500 may be provided with a notification section. Welding control device 400 and welding power source 500 are configured to be able to communicate with each other and to be able to send and receive data. Note that the mode of communication may be wired communication or wireless communication.

A welding control device 400 and a teaching pendant 300 are connected to the robot control device 200, and are configured so that they can communicate with each other and can send and receive data. Note that the mode of communication may be wired communication or wireless communication.

According to the configuration shown in this embodiment, the same effects as the configuration shown in Embodiment 1 can be achieved. That is, if an unintended impact is applied to the teaching pendant 300 or if the welding operator accidentally drops the teaching pendant 300, changing the welding conditions is prohibited. This makes it possible to avoid unintended troubles during welding and ensure the safety of welding workers. Further, deterioration in welding quality and occurrence of welding defects can be suppressed.

Furthermore, according to the present embodiment, when an unintended impact is applied to the teaching pendant 300 or when the welding operator accidentally drops the teaching pendant 300, the movement trajectory of the robot 100 taught from that point onwards at least is It can be prohibited from being stored in the robot control device 200. By doing so, it is possible to prevent the movement regulation of the robot 100 from deviating from the desired trajectory due to erroneous input. Furthermore, this can prevent welding defects such as welding in unintended locations or not welding in locations that should be welded in the base material W.

Note that the function of inhibiting reflection of the movement trajectory of the robot 100 based on the detection signal of the acceleration detection unit 24 may be an optional function. In other words, the function does not need to be installed in the welding device 600 from the beginning.

Note that in the configuration shown in FIG. 4, the welding torch 130 held by the robot arm 110 may be a laser head. That is, welding device 600 may be a laser welding device.

Further, in this embodiment, an example was shown in which the welding control device 400 and the welding power source 500 were set separately, but as shown in the first embodiment, these may be integrated.

Moreover, the welding condition changing method shown in Embodiment 1 is also applied to this embodiment. In this case, a sixth step is further provided in which, in addition to prohibiting changes in the welding conditions, at least the movement trajectory of the robot 100 taught after that point is prohibited from being stored in the robot control device 200.

Further, the program of this embodiment is a program for causing one or more processors (CPU or MPU) to execute the welding condition changing method including the first to sixth steps described above.

In the welding device of the present disclosure, if an unintended impact is applied to the remote controller or if the welding worker accidentally drops the remote controller, changing the welding conditions is prohibited and the safety of the welding worker can be ensured. , is industrially useful.

10 Welding power source 11 Main circuit 12 First control section 13 Storage section 20 Remote controller 21 Operation input section 22 Display section 23 Second control section 24 Acceleration detection section 25 HOME buttons 26a to 26d Operation buttons 27a, 27b Jog dial 30 Wire feeding device 31, 32 Signal line 40 Welding cable 41 Ground wire 50 Welding torch (welding electrode)
60 Welding wire 70 Welding device 100 Robot 110 Robot arm 120 Servo motor 130 Welding torch (welding electrode)
200 Robot control device 300 Teaching pendant (remote controller)
310 Operation input section 320 Display section 330 Robot operation button 340 Emergency stop button 400 Welding control device 500 Welding power source 600 Welding device W Base material

Claims (6)

A welding device comprising at least a welding power source and a remote controller,
The welding power source is
A main circuit that supplies welding power to the welding electrode,
at least a first control section that controls the welding power supplied from the main circuit,
The remote controller is
an operation input section that receives operation input from a welding operator;
a second control unit that transmits content input to the operation input unit to the first control unit;
It has at least an acceleration detection section that detects acceleration applied to the remote controller,
The first control unit and the second control unit are configured to be able to communicate with each other,
The second control unit determines, based on the detection signal of the acceleration detection unit, whether the remote controller is free falling or whether an impact of a predetermined value or more is applied to the remote controller,
If it is determined that the remote controller is free-falling or that an impact of a predetermined value or more is applied to the remote controller, the second control section transmits the determination result as error information to the first control section. death,
The welding apparatus according to claim 1, wherein the first control unit is configured to prohibit changes in welding conditions after receiving the error information. The welding device according to claim 1,
The welding apparatus is characterized in that the first control section refuses to receive a signal from the second control section after receiving the error information. The welding device according to claim 1,
The welding apparatus is characterized in that the first control section disables the signal from the second control section after receiving the error information. The welding device according to claim 1,
The first control section receives a signal from the second control section after receiving the error information and stores the signal in a storage section provided in the welding power source, or A welding device characterized in that changing welding conditions read out in the section is prohibited. The welding device according to claim 1,
The welding electrode is a welding torch that holds a welding wire and is manually operated by a welding operator,
A welding device further comprising a wire feeding device that feeds the welding wire toward the base metal. The welding device according to claim 1,
further comprising a robot that holds the welding electrode at its tip and moves the welding electrode in a desired direction,
The welding apparatus is characterized in that the remote controller also serves as a teaching pendant that teaches the movement trajectory of the tip of the robot.