WO2019203279A1

WO2019203279A1 - Welding machine

Info

Publication number: WO2019203279A1
Application number: PCT/JP2019/016518
Authority: WO
Inventors: 小林　直樹; 英樹井原; 宏太堀江
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2018-04-20
Filing date: 2019-04-17
Publication date: 2019-10-24
Also published as: CN112041109B; JPWO2019203279A1; JP7390530B2; CN112041109A

Abstract

An operation unit (11) has a plurality of operation keys (50) to be operated by an operator and a plurality of display parts (70) on each of which information is displayed. The plurality of operation keys (50) include a sequence selection key (51) to which operation for selecting a welding sequence is applied. The plurality of display parts (70) include a waveform display part (71) in which a sequence waveform in accordance with the welding sequence selected by operation of the sequence selection key (51) is displayed.

Description

Welding machine

The technology disclosed here relates to a welder.

Conventionally, a welding machine having an operation unit for setting and displaying welding conditions is known. For example, Patent Document 1 discloses a welding machine including a first display unit and a second display unit in an operation unit. In this welding machine, the entire screen of the second display unit separate from the first display unit is switched from the unlit state to the lit or flashing state corresponding to the display content displayed on the first display unit, and Character information corresponding to the display content displayed on the first display unit is displayed on the second display unit to notify the operator.

Japanese Unexamined Patent Publication No. 2016-93841

However, in the welding machine of Patent Document 1, the operator cannot visually confirm the state of the set welding sequence. Therefore, it is difficult for the operator to easily operate the welding machine.

The technology disclosed here relates to a welder. This welding machine includes an operation unit that sets and displays welding conditions. The operation unit includes a plurality of operation keys operated by an operator and a plurality of display units for displaying information. The plurality of operation keys include a sequence selection key to which an operation for selecting a welding sequence is given. The plurality of display units include a waveform display unit that displays a sequence waveform corresponding to a welding sequence selected by operating the sequence selection key.

According to the technique disclosed herein, the operator can visually confirm the state of the set welding sequence, so that the operator can easily operate the welding machine.

It is the schematic which illustrates the structure of the welding machine by embodiment. It is a top view which illustrates the composition of the operation part. It is a top view which illustrates the composition of the important section of an operation part. It is a top view for demonstrating a starting process. It is a transition diagram for demonstrating a sequence selection process. It is a top view for demonstrating a partial setting process.

Hereinafter, embodiments will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and description thereof will not be repeated.

(Welder)
FIG. 1 illustrates the configuration of a welding machine 10 according to the embodiment. The welding machine 10 is an apparatus for performing welding (for example, arc welding), and includes an operation unit 11, an operation control unit 12, a storage unit 13, a welding output unit 14, and a welding control unit 15. . The operation unit 11 sets and displays welding conditions. The operation control unit 12 controls the operation unit 11. For example, the operation control unit 12 includes a CPU (arithmetic processing unit) and a memory that stores a program and information for operating the CPU. The storage unit 13 stores information. The storage unit 13 stores information on the image displayed on the operation unit 11 (image information), information on welding conditions, information used to control the operation of the welding machine 10 (control information), and the like. Yes. The welding output part 14 performs welding output (for example, supply of welding current). The welding control unit 15 controls the welding output unit 14 according to the welding conditions set in the operation unit 11. For example, the welding control unit 15 includes a CPU (arithmetic processing unit) and a memory that stores a program and information for operating the CPU.

[Operation section]
As shown in FIGS. 1, 2, and 3, the operation unit 11 includes an operation panel 20, a plurality of touch sensors 30, and a light emitting unit 40.

The operation panel 20 is formed in a sheet shape. In this example, the operation panel 20 is provided with a plurality of operation keys 50, one or a plurality of (one in this example) slider wheel 60, a plurality of display units 70, and a display window 80. ing.

The plurality of touch sensors 30 are provided on the back side of the operation panel 20 and are respectively disposed at predetermined positions. Each of the plurality of touch sensors 30 detects that the operation panel 20 has been touched at the position where the touch sensor 30 is disposed. For example, the touch sensor 30 is configured by a capacitive touch sensor.

The light emitting unit 40 selectively emits light to the plurality of operation keys 50, the slider wheel 60, and the plurality of display units 70 provided on the operation panel 20, thereby the plurality of operation keys 50, the slider wheel 60, and the plurality of operation keys 50. Are selectively lit. For example, the light emitting unit 40 includes a plurality of light emitting elements such as light emitting diodes.

〔Operation key〕
The plurality of operation keys 50 are operated (specifically, touched) by the operator. In this example, a symbol (design, character, etc.) is assigned to each of the plurality of operation keys 50, and a translucent part (a part through which light passes) having a shape corresponding to the symbol of the operation key 50 is assigned to the operation panel 20. Thus, the operation key 50 is provided on the operation panel 20.

In this example, the plurality of operation keys 50 can be switched between a lighting state and a light-off state. Specifically, the operation key 50 is irradiated by irradiating light from the light emitting unit 40 to the translucent part constituting the operation key 50 (the translucent part having a shape corresponding to the symbol of the operation key 50). Is turned on, and the irradiation of light to the translucent part constituting the operation key 50 is stopped, whereby the operation key 50 is turned off. Here, the lighting state includes a continuously lit state and an intermittently lit state (that is, a blinking state).

[Types of operation keys]
In this example, the plurality of operation keys 50 include a sequence selection key 51, a current / voltage switching key 52, a home key 53, a shift key 54, a menu key 55, and the like.

The sequence selection key 51 is given an operation for selecting a welding sequence. Specifically, when the sequence selection key 51 is touched, processing for selecting a welding sequence (sequence selection processing) is performed.

The current / voltage switching key 52 is given an operation for switching between a voltage value and a current value in a partial setting process described later. Specifically, when the current / voltage switching key 52 is touched, a voltage value and a current value are switched in a partial setting process described later.

The home key 53 is given an operation for displaying a home screen (not shown) in the display window 80. The shift key 54 is given an operation for performing a shift operation. The menu key 55 is given an operation for displaying a menu screen (not shown) on the display window 80.

[Key touch sensor]
The plurality of touch sensors 30 include a plurality of key touch sensors 31 corresponding to the plurality of operation keys 50, respectively. The plurality of key touch sensors 31 detect touches of the plurality of operation keys 50, respectively. In this example, the plurality of key touch sensors 31 are respectively arranged on the back side of the plurality of operation keys 50. Then, the detection results (detection signals) by the plurality of key touch sensors 31 are transmitted to the operation control unit 12. Thereby, the operation control part 12 can each detect the touch of the some operation key 50 based on the detection result by the some key touch sensor 31. FIG.

[Slider wheel]
The slider wheel 60 is given an operation (specifically, an operation of tracing the slider wheel 60) by the operator. In this example, the slider wheel 60 is formed in an annular shape (in this example, an annular shape) in plan view. Specifically, the slider wheel 60 is provided on the operation panel 20 by forming a light-transmitting portion having a shape corresponding to the outer shape of the slider wheel 60 (in this example, an annular shape) on the operation panel 20.

In this example, the surface height of the outer peripheral edge portion of the slider wheel 60 is the surface height of the slider wheel 60 on the center side of the slider wheel 60 with respect to the outer peripheral edge portion (hereinafter referred to as “inner peripheral portion”). It is higher than that. Specifically, in this example, the outer peripheral edge portion of the slider wheel 60 is configured by an annular convex portion, so that the surface height of the outer peripheral edge portion of the slider wheel 60 is the surface height of the inner peripheral portion of the slider wheel 60. It is higher than that. The surface height of the outer peripheral edge portion of the slider wheel 60 may be higher than the surface height of the inner peripheral portion of the slider wheel 60 by configuring the inner peripheral portion of the slider wheel 60 with an annular recess. .

In this example, the slider wheel 60 can be switched between a lighting state and a light-off state. Specifically, the light from the light emitting unit 40 is applied to the annular light transmitting portion that constitutes the outer peripheral edge of the slider wheel 60, so that the slider wheel 60 is turned on, and the annular transparent light is transmitted. When the irradiation of light to the light part is stopped, the slider wheel 60 is turned off.

[Slider wheel touch sensor]
Note that the plurality of touch sensors 30 described above include a plurality of (eight in the example of FIG. 3) slider wheel touch sensors 32 corresponding to the slider wheel 60. The plurality of slider wheel touch sensors 32 detect an operation given to the slider wheel 60. In this example, the plurality of slider wheel touch sensors 32 are arranged in an annular shape on the back side of the slider wheel 60. Then, detection results (detection signals) by the plurality of slider wheel touch sensors 32 are transmitted to the operation control unit 12. Thereby, the operation control unit 12 can detect an operation given to the slider wheel 60 based on the detection results by the plurality of slider wheel touch sensors 32.

[Display section]
Information is displayed on the plurality of display units 70. In this example, by forming one or a plurality of translucent parts having a shape corresponding to a symbol (design, character, etc.) indicating information to be displayed on the display part 70 on the operation panel 20, the display part 70 is It is provided on the operation panel 20. Then, information is selectively displayed on the display unit 70 by selectively irradiating light from the light emitting unit 40 to one or more translucent units constituting the display unit 70.

[Type of display section]
In this example, the plurality of display sections 70 include a waveform display section 71, two numerical display sections (first numerical display section 72a and second numerical display section 72b), and two additional information display sections (first additional display section). An information display unit 73a and a second additional information display unit 73b), a sequence related information display unit 74, and the like are included.

<Waveform display>
The waveform display unit 71 displays a sequence waveform (schematic shape of the waveform of the welding current) corresponding to the welding sequence selected by operating the sequence selection key 51. In this example, by forming a plurality of light transmitting portions corresponding to a plurality of segments for expressing a plurality of sequence waveforms respectively corresponding to a plurality of welding sequences on the operation panel 20, the waveform display unit 71 is operated on the operation panel. 20 is provided. A plurality of sequence waveforms are selectively displayed by selectively irradiating light from the light emitting unit 40 to a plurality of light transmitting portions (segments) constituting the waveform display unit 71.

As shown in FIG. 3, in this waveform display unit 71, eight sequence waveforms can be expressed by ten segments (first to tenth segments 71a to 71j). Specifically, the sequence waveform is divided into seven sections. That is, the welding sequence includes seven processing steps, and the seven sections of the sequence waveform correspond to the seven processing steps of the welding sequence, respectively. The first section is a section corresponding to the preflow period, and is represented by the first segment 71a. The second section is a section corresponding to a period in which the presence or absence of crater welding can be selected, and is selectively expressed by the second segment 71b and the third segment 71c. The third section is a section corresponding to the rising period, and is expressed by the fourth segment 71d. The fourth section is a section corresponding to the main welding period, and is selectively expressed by the fifth segment 71e and the sixth segment 71f. The fifth section is a section corresponding to the falling period, and is expressed by the seventh segment 71g. The sixth section is a section corresponding to a period in which the presence or absence of crater welding can be selected. The seventh section selectively expressed by the 8 segments 71h and the ninth segment 71i is a section corresponding to the afterflow period, and is expressed by the 10th segment 71j.

<First numerical value display>
The first numerical value display portion 72a displays an arbitrary numerical value of a predetermined digit (three digits in this example). In this example, a first numerical value display portion 72a is provided on the operation panel 20 by forming a plurality of light transmitting portions respectively corresponding to a plurality of segments for expressing an arbitrary three-digit numerical value on the operation panel 20. ing. And by selectively irradiating the light from the light emission part 40 with respect to the some translucent part (segment) which comprises the 1st numerical value display part 72a, the 3rd digit arbitrary arbitrary is given to the 1st numerical value display part 72a. A numerical value is displayed.

<First additional information display section>
The first additional information display unit 73a includes a plurality of pieces of first additional information (in this example, “m / min.”, “Mm”, “%”, “A”) related to the numerical values displayed on the first numerical value display unit 72a. And 5 units of “Hz”) are selectively displayed. In this example, the first additional information display unit 73a is formed by forming, on the operation panel 20, a plurality of translucent parts having a shape corresponding to a plurality of symbols indicating the first additional information (symbols indicating units, signs, etc.). Is provided on the operation panel 20. Then, the plurality of first additional information is selectively displayed on the first numerical display 72 a by selectively irradiating the light from the light emitting unit 40 to the plurality of light transmitting portions constituting the first additional information display 73 a. Is displayed.

<Second numerical display>
The second numerical value display portion 72b displays an arbitrary numerical value of a predetermined digit (three digits in this example). The configuration of the second numerical value display part 72b is the same as that of the first numerical value display part 72a.

<Second additional information display section>
The second additional information display unit 73b includes a plurality of pieces of second additional information (in this example, two units of “sec.” And “V” and a sign of “±”) related to the numerical value displayed on the second numerical value display unit 72b. ) Is selectively displayed. The configuration of the second additional information display unit 73b is the same as the configuration of the first additional information display unit 73a.

<Sequence related information display section>
The sequence related information display unit 74 displays information related to the welding sequence corresponding to the sequence waveform displayed on the waveform display unit 71 (for example, the presence or absence of crater welding in the welding sequence). In this example, a sequence-related information display unit 74 is provided on the operation panel 20 by forming a translucent part having a shape corresponding to a symbol indicating information related to the welding sequence on the operation panel 20. Information is selectively displayed on the sequence related information display unit 74 by selectively irradiating light from the light emitting unit 40 to the translucent unit constituting the sequence related information display unit 74.

<Waveform touch sensor>
Note that the plurality of touch sensors 30 include a plurality of waveform touch sensors 33 each corresponding to a part of a sequence waveform displayed on the waveform display unit 71. Each of the plurality of waveform touch sensors 33 detects that a part of the sequence waveform displayed on the waveform display unit 71 (a part of the sequence waveform corresponding to the waveform touch sensor 33) is touched. In this example, each of the plurality of waveform touch sensors 33 is arranged on the back side of a part of the sequence waveform displayed on the waveform display unit 71. Then, the detection results (detection signals) by the plurality of waveform touch sensors 33 are transmitted to the operation control unit 12. Thereby, the operation control unit 12 can detect that a part of the sequence waveform displayed on the waveform display unit 71 is touched based on the detection results by the plurality of waveform touch sensors 33.

As shown in FIG. 3, in this example, eight waveform touch sensors (first to eighth waveform touch sensors 33a to 33h) are provided. The first waveform touch sensor 33a corresponds to the first segment 71a representing the first section of the sequence waveform, and the second waveform touch sensor 33b is the second segment 71b representing the second section of the sequence waveform. The third waveform touch sensor 33c corresponds to the fourth segment 71d representing the third section of the sequence waveform, and the fourth waveform touch sensor 33d and the fifth waveform touch sensor 33e correspond to the third segment 71c. The sixth waveform touch sensor 33f corresponds to the fifth segment 71e and the sixth segment 71f, respectively, representing the fourth section of the sequence waveform, and the sixth waveform touch sensor 33f corresponds to the seventh segment 71g, which represents the fifth section of the sequence waveform. Correspondingly, the seventh waveform touch sensor 33g is the eighth waveform representing the sixth section of the sequence waveform. Corresponding to segment 71h and ninth segment 71i, eighth waveform touch sensor 33h corresponds to the 10th segment 71j representing the seventh segment sequence waveform.

<Display window>
The display window 80 displays various images such as an image indicating welding conditions and a home screen and a menu screen. For example, the display window 80 includes a liquid crystal display panel and a drive circuit that drives the liquid crystal display panel.

(Operation of operation control unit)
The operation control unit 12 controls the operation unit 11 so that the activation process is performed when the welding machine 10 is activated. In addition, the operation control unit 12 controls the operation unit 11 so that various types of processing such as sequence selection processing (processing for selecting a welding sequence) are performed in the welder 10 after activation. In this example, the operation control unit 12 is configured so that the operation key 50 in which the operation is valid among the plurality of operation keys 50 is lit and the operation key 50 in which the operation is not valid is turned off. Specifically, the light emitting unit 40) is controlled.

<Start process>
In the activation process, the operation control unit 12 controls the operation unit 11 so that the operation unit 11 is in a predetermined activation initial state.

As shown in FIG. 4, an image indicating a predetermined welding condition (for example, a standard welding condition stored in the storage unit 13) is displayed on the display window 80 in the initial startup state. In addition, among the plurality of operation keys 50, the operation key 50 (the plurality of black operation keys 50 in FIG. 4) in which the operation is valid is turned on, and the slider wheel 60 is turned on. Further, a predetermined sequence waveform (for example, a sequence waveform corresponding to a welding sequence corresponding to a standard welding condition) is displayed on the waveform display unit 71, and is displayed in advance on the first numerical value display unit 72a and the first additional information display unit 73a. A predetermined current value (for example, a current value corresponding to standard welding conditions) is displayed, and a predetermined voltage value (for example, corresponding to standard welding conditions) is displayed on the second numerical value display portion 72b and the second additional information display portion 73b. Voltage value to be displayed). In FIG. 4, black portions are portions that are lit. The same applies to FIGS. 5 and 6.

<Sequence selection process>
In addition, when the sequence selection key 51 is touched, the operation control unit 12 controls the operation unit 11 so that the sequence selection process is started in the operation unit 11. Then, when the sequence selection key 51 is touched in the sequence selection process, the operation control unit 12 causes the operation unit 11 to change the sequence waveform displayed on the waveform display unit 71 in response to the touch of the sequence selection key 51. Control.

As shown in FIG. 5, when the sequence selection key 51 is touched, the states of the waveform display unit 71, the sequence related information display unit 74, and the display window 80 are the first state S11, the second state S12, and the third state S13. One of these is set. Thereafter, each time the sequence selection key 51 is touched, the state of the waveform display unit 71, the sequence related information display unit 74, and the display window 80 transitions in order to the first state S11, the second state S12, and the third state S13. To go. When the state of the waveform display unit 71, the sequence related information display unit 74, and the display window 80 is set to any one of the first state S11, the second state S12, and the third state S13, the shift key 54 is When the sequence selection key 51 is touched after being touched, the state of the waveform display unit 71, the sequence related information display unit 74, and the display window 80 is changed to the fourth state S14. When the waveform display unit 71, the sequence related information display unit 74, and the display window 80 are set to the fourth state S14, when the sequence selection key 51 is touched, the waveform display unit 71 and the sequence related information are displayed. The state of the display unit 74 and the display window 80 changes to the original state (any one of the first state S11, the second state S12, and the third state S13).

In the first state S11, a sequence waveform corresponding to a welding sequence without crater welding is displayed on the waveform display unit 71. Specifically, the first segment 71a, the second segment 71b, the fourth segment 71d, the fifth segment 71e, the seventh segment 71g, the eighth segment 71h, and the tenth segment 71j are turned on, so that crater welding is performed. The sequence waveform corresponding to the welding sequence without is displayed. The display window 80 displays an image in which the characters “no crater” are written in the control method column (that is, an image indicating that the selected welding sequence is a welding sequence without crater welding). .

In the second state S12, the waveform display unit 71 displays a sequence waveform corresponding to the welding sequence with crater welding. Specifically, the first segment 71a, the second segment 71b, the fourth segment 71d, the fifth segment 71e, the seventh segment 71g, the ninth segment 71i, and the tenth segment 71j are turned on, so that crater welding is performed. A sequence waveform corresponding to a certain welding sequence is displayed. The display window 80 displays an image in which the characters “with crater” are written in the control method column (that is, an image indicating that the selected welding sequence is a welding sequence with crater welding). . The sequence related information display unit 74 displays a symbol indicating that the sequence waveform displayed on the waveform display unit 71 is a sequence waveform corresponding to a welding sequence with crater welding.

In the third state S13, a sequence waveform corresponding to the welding sequence with initial crater welding is displayed on the waveform display unit 71. Specifically, when the first segment 71a, the third segment 71c, the fourth segment 71d, the fifth segment 71e, the seventh segment 71g, the ninth segment 71i, and the tenth segment 71j are turned on, the initial crater A sequence waveform corresponding to the welding sequence with welding is displayed. Also, the display window 80 displays an image in which the characters “with initial crater” are written in the control method column (that is, an image indicating that the selected welding sequence is a welding sequence with initial crater welding). Is done. Further, the sequence related information display unit 74 displays a symbol indicating that the sequence waveform displayed on the waveform display unit 71 is a sequence waveform corresponding to a welding sequence with crater welding.

In the fourth state S14, a sequence waveform corresponding to a welding sequence without crater welding is displayed on the waveform display unit 71. Specifically, the first segment 71a, the second segment 71b, the fourth segment 71d, the fifth segment 71e, the seventh segment 71g, the eighth segment 71h, and the tenth segment 71j are turned on, so that crater welding is performed. The sequence waveform corresponding to the welding sequence without is displayed. The display window 80 displays an image in which the characters “arc spot” are written in the control method column.

<Partial setting process>
Further, when a part of the sequence waveform displayed on the waveform display unit 71 is touched in the sequence selection process, the operation control unit 12 touches a part (1) of the welding sequence corresponding to the part of the touched sequence waveform. The operation unit 11 is controlled so that partial setting processing (setting related to a part of the welding sequence) is started for one processing step). In the partial setting process, a current value or voltage value relating to a part of the welding sequence is set, and the current value or voltage value is displayed on the numerical value display unit (first numerical value display unit 72a or second numerical value display unit 72b).

For example, as shown in FIG. 6, when a segment representing the fourth section of the sequence waveform displayed on the waveform display unit 71 (the fifth segment 71e in the example of FIG. 6) is touched, the touch is made. The segment blinks and the fourth section of the sequence waveform is the target of the partial setting process. In the partial setting process for the fourth section of the sequence waveform, the current value is a setting target. When the current / voltage switching key 52 is touched, the setting target is switched from the current value to the voltage value, and when the current / voltage switching key 52 is touched again, the setting target is switched from the voltage value to the current value. It is done. When the current value in the fourth section of the sequence waveform is a setting target, the numerical value (that is, the current value) displayed on the first numerical value display portion 72a changes according to the operation given to the slider wheel 60. . On the other hand, when the voltage value in the fourth section of the sequence waveform is a setting target, the numerical value (that is, the voltage value) displayed on the second numerical value display portion 72b in accordance with the operation given to the slider wheel 60 is Change. When the segment representing the fourth section of the sequence waveform displayed on the waveform display unit 71 (the fifth segment 71e in the example of FIG. 6) is touched again, the current in the fourth section of the sequence waveform is touched. The value (or voltage value) is set (determined) to the current value displayed on the first numerical value display portion 72a (or the voltage value displayed on the second numerical value display portion 72b). In the partial setting process, in addition to the current value and the voltage value, a length of processing time such as a preflow time, a pulse frequency, and the like may be set.

[Effects of the embodiment]
As described above, the state of the set welding sequence is operated by causing the waveform display unit 71 to display the sequence waveform (schematic shape of the welding waveform) corresponding to the welding sequence selected by operating the sequence selection key 51. Can be confirmed visually. Thereby, operation of the welding machine 10 by an operator can be made easy.

In addition, by changing the sequence waveform displayed on the waveform display unit 71 in response to the touch of the sequence selection key 51, the operator visually confirms the sequence waveforms one by one in order and the plurality of sequence waveforms. A desired sequence waveform (welding sequence) can be selected. Thereby, operation of the welding machine 10 by an operator can be made easy.

In this example, when a part of the sequence waveform displayed on the waveform display unit 71 is touched, a partial setting process (welding is performed on a part of the welding sequence corresponding to the part of the touched sequence waveform. Setting related to a part of the sequence, specifically, setting of a current value or a voltage value) is started. Therefore, the operator can easily select a portion (a part of the sequence waveform) for which the partial setting process is desired from the sequence waveform displayed on the waveform display unit 71. Thereby, operation of the welding machine 10 by an operator can be made easy.

In addition, by controlling the operation unit 11 so that the operation key 50 in which the operation is valid among the plurality of operation keys 50 is turned on and the operation key 50 in which the operation is not valid is turned off, the operator can It is possible to easily find the operation key 50 that enables the operation from the plurality of operation keys 50. Thereby, operation of the welding machine 10 by an operator can be made easy.

Further, by providing a plurality of operation keys 50 and a plurality of display units 70 on the operation panel 20 formed in a sheet shape, the operation surface of the operation unit 11 can be flattened. Thereby, cleaning of the operation part 11 can be made easy.

Further, by making the surface height of the outer peripheral edge portion of the slider wheel 60 higher than the surface height of the inner peripheral portion of the slider wheel 60 (the portion closer to the center of the slider wheel 60 than the outer peripheral edge portion), the operator can Since the position of the slider wheel 60 can be confirmed by the step at the outer peripheral edge of the slider wheel 60, the slider wheel 60 can be operated while viewing the information displayed on the operation unit 11. Thereby, operation of the welding machine 10 by an operator can be made easy.

(Modification of the embodiment)
Note that the lighting modes of the plurality of operation keys 50 in the lighting state may be switchable. Then, the operation control unit 12 sets the lighting mode of the operation key 50 that is recommended to be operated next among the plurality of operation keys 50 to the lighting mode of the operation key 50 that is not recommended to be operated next. You may control the operation part 11 so that it may become a different aspect.

For example, the plurality of operation keys 50 may be capable of switching the lighting color to a plurality of colors. Specifically, the light emitting unit 40 may be configured to selectively irradiate light of a plurality of colors. Then, the operation control unit 12 determines that the lighting color of the operation key 50 recommended to be operated next among the plurality of operation keys 50 is different from the lighting color of the operation key 50 not recommended to be operated next. The operation unit 11 may be controlled so that

Alternatively, the operation control unit 12 operates so that the operation key 50 recommended to be operated next among the plurality of operation keys 50 blinks and the operation key 50 not recommended to be operated next does not blink. The unit 11 may be controlled.

As described above, the lighting mode of the operation key 50 recommended to be operated next among the plurality of operation keys 50 is different from the lighting mode of the operation key 50 not recommended to be operated next. By controlling the operation unit 11 in such a manner, the operator can easily find the operation key 50 recommended to be operated next from the plurality of operation keys 50. Thereby, operation of the welding machine 10 by an operator can be made easy.

(Other embodiments)
Moreover, you may implement combining the above embodiment suitably. The above embodiments are essentially preferable examples, and are not intended to limit the scope of the present invention, its application, or its use.

As described above, the technique disclosed herein is useful for a welding machine.

DESCRIPTION OF SYMBOLS 10 Welding machine 11 Operation part 12 Operation control part 13 Storage part 14 Welding output part 15 Welding control part 20 Operation panel 30 Touch sensor 31 Key touch sensor 32 Slider wheel touch sensor 33 Waveform touch sensor 40 Light emission part 50 Operation key 51 Sequence selection key 52 Current voltage switching key 60 Slider wheel 70 Display unit 71 Waveform display unit 72a First numerical value display unit 72b Second numerical value display unit 73a First additional information display unit 73b Second additional information display unit 80 Display window

Claims

It has an operation unit for setting and displaying welding conditions.
The operation unit is
A plurality of operation keys operated by an operator;
A plurality of display units for displaying information;
The plurality of operation keys include a sequence selection key to which an operation for selecting a welding sequence is given,
The welding machine, wherein the plurality of display units include a waveform display unit that displays a sequence waveform corresponding to a welding sequence selected by operating the sequence selection key.
In claim 1,
An operation control unit for controlling the operation unit;
The operation control unit controls the operation unit so that when the sequence selection key is touched, a sequence waveform displayed on the waveform display unit is changed according to the touch of the sequence selection key. Welding machine.
In claim 2,
When a part of the sequence waveform displayed on the waveform display unit is touched, the operation control unit starts a partial setting process for setting a part of the welding sequence corresponding to the part of the sequence waveform. The operation unit is controlled as described above.
In claim 3,
The plurality of display parts include a numerical value display part for displaying an arbitrary numerical value,
In the partial setting process, a current value or a voltage value related to a part of the welding sequence is set, and the current value or the voltage value is displayed on the numerical value display unit.
In any one of claims 2 to 4,
The plurality of operation keys can be switched between a lighting state and a light-off state,
The operation control unit controls the operation unit so that an operation key that enables an operation among the plurality of operation keys is turned on and an operation key that does not become effective is turned off. Machine.
In claim 5,
The plurality of operation keys can switch the lighting mode in the lighting state,
The operation control unit has a mode different from a mode of lighting of an operation key that is recommended not to be operated next in a mode of lighting of an operation key recommended to be operated next among the plurality of operation keys. The operation unit is controlled as described above.
In any one of claims 2 to 6,
The operation unit is
An operation panel formed in a sheet shape and provided with the plurality of operation keys and the plurality of display units;
A plurality of key touch sensors respectively corresponding to the plurality of operation keys and detecting touches of the plurality of operation keys,
The said operation control part each detects the touch of these operation keys based on the detection result by these key touch sensors, The welding machine characterized by the above-mentioned.
In claim 7,
The operation unit has a slider wheel that can be operated by an operator,
The slider wheel is annularly provided on the operation panel,
The surface height of the outer peripheral edge of the slider wheel is higher than the surface height of the slider wheel on the center side of the slider wheel than the outer peripheral edge.