JP7390530B2 - welding machine - Google Patents

Description

The technology disclosed herein relates to a welding machine.

Conventionally, welding machines are known that include an operation section for setting and displaying welding conditions. For example, Patent Document 1 discloses a welding machine including a first display section and a second display section on an operation section. In this welding machine, the entire screen of the second display section, which is separate from the first display section, is switched from an off state to lit or blinking in response to the display content displayed on the first display section, and the second display section is separated from the first display section. Character information corresponding to the display content displayed on the first display section is displayed on the second display section and notified to the operator.

JP2016-93841A

However, with the welding machine of Patent Document 1, the operator cannot visually check the status of the set welding sequence. Therefore, it is difficult for the operator to easily operate the welding machine.

The technology disclosed herein relates to a welding machine. This welding machine includes an operation section that sets and displays welding conditions, and an operation control section that controls the operation section. The operation section includes a plurality of operation keys operated by an operator and a plurality of display sections on which information is displayed. The plurality of operation keys include a sequence selection key that provides an operation for selecting a welding sequence. The plurality of display sections include a waveform display section that switches and displays three or more sequence waveforms according to the welding sequence selected by operating the sequence selection key.
The waveform display section includes a plurality of visually visible segments representing sections of the sequence waveform having at least two sections arranged in parallel,
A plurality of segments are selected that correspond to a state of the sequence waveform according to a welding sequence selected by operating the sequence selection key.
Further, the sequence waveform is divided into a plurality of sections each corresponding to a plurality of processing steps in the welding sequence, and the operation control section is configured to control one of the sequence waveforms displayed on the waveform display section. When a section is touched, the operating section is controlled to start a partial setting process for setting one process step of the welding sequence corresponding to one section of the sequence waveform.

According to the technology disclosed herein, the operator can visually check the status of the set welding sequence, making it easier for the operator to operate the welding machine.

FIG. 1 is a schematic diagram illustrating the configuration of a welding machine according to an embodiment. FIG. 3 is a plan view illustrating the configuration of an operating section. FIG. 3 is a plan view illustrating the configuration of main parts of the operating section. FIG. 3 is a plan view for explaining startup processing. FIG. 3 is a transition diagram for explaining sequence selection processing. FIG. 3 is a plan view for explaining partial setting processing.

Hereinafter, embodiments will be described in detail with reference to the drawings. It should be noted that the same or corresponding parts in the figures are given the same reference numerals, and the description thereof will not be repeated.

(welding machine)
FIG. 1 illustrates the configuration of a welding machine 10 according to an embodiment. Welding machine 10 is a device for performing welding (for example, arc welding), and includes an operation section 11, an operation control section 12, a storage section 13, a welding output section 14, and a welding control section 15. . The operation unit 11 sets and displays welding conditions. The operation control section 12 controls the operation section 11 . For example, the operation control unit 12 includes a CPU (arithmetic processing unit) and a memory that stores programs and information for operating the CPU. The storage unit 13 stores information. The storage unit 13 stores information on images displayed on the operation unit 11 (image information), information regarding welding conditions, information used to control the operation of the welding machine 10 (control information), etc. There is. The welding output section 14 performs welding output (for example, supplying welding current). Welding control section 15 controls welding output section 14 according to welding conditions set in operation section 11 . For example, the welding control unit 15 includes a CPU (arithmetic processing unit) and a memory that stores programs and information for operating the CPU.

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

The operation panel 20 is formed into a sheet shape. Further, in this example, the operation panel 20 is provided with a plurality of operation keys 50, one or more (one in this example) slider wheel 60, a plurality of display sections 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 arranged at predetermined positions. Each of the plurality of touch sensors 30 detects that the operation panel 20 is touched at the position where the touch sensor 30 is placed. For example, the touch sensor 30 is configured by a capacitive touch sensor.

The light emitting section 40 selectively irradiates light onto the plurality of operation keys 50, the slider wheel 60, and the plurality of display sections 70 provided on the operation panel 20. The display section 70 is selectively turned on. For example, the light emitting section 40 is composed of a plurality of light emitting elements such as light emitting diodes.

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

Further, in this example, the plurality of operation keys 50 can be switched between a lit state and a non-lit state. Specifically, the operation key 50 is irradiated with light from the light emitting section 40 to a transparent part (a transparent part having a shape corresponding to the symbol of the operation key 50) constituting the operation key 50. is in a lit state, and the irradiation of light to the transparent portion constituting the operation key 50 is stopped, so that the operation key 50 is in an unlit state. Here, the lighting state includes a continuous lighting state and an intermittent lighting state (that is, a blinking state).

[Type 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 to be described later. Specifically, by touching the current/voltage switching key 52, the voltage value and current value are switched in a partial setting process described later.

The home key 53 is given an operation for displaying a home screen (description omitted) on 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 (description is omitted) on the display window 80.

[Key touch sensor]
Note that the plurality of touch sensors 30 described above 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 arranged on the back sides of the plurality of operation keys 50, respectively. The detection results (detection signals) by the plurality of key touch sensors 31 are then transmitted to the operation control unit 12. Thereby, the operation control unit 12 can detect each touch of the plurality of operation keys 50 based on the results of detection by the plurality of key touch sensors 31.

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

In this example, the surface height of the outer peripheral edge of the slider wheel 60 is the surface height of the portion of the slider wheel 60 that is closer to the center of the slider wheel 60 than the outer peripheral edge (hereinafter referred to as "inner peripheral portion"). It's higher than that. Specifically, in this example, the outer circumferential edge of the slider wheel 60 is configured with an annular convex portion, so that the surface height of the outer circumferential edge of the slider wheel 60 is equal to the surface height of the inner circumferential portion of the slider wheel 60. It's higher than that. Note that by forming the inner circumferential portion of the slider wheel 60 with an annular recess, the surface height of the outer circumferential edge of the slider wheel 60 may be higher than the surface height of the inner circumferential portion of the slider wheel 60. .

Further, in this example, the slider wheel 60 can be switched between a lit state and an unlit state. Specifically, the light emitting section 40 illuminates the annular transparent section forming the outer peripheral edge of the slider wheel 60, so that the slider wheel 60 is turned on and the annular transparent section is illuminated. By ceasing the irradiation of light to the light section, 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 operations applied 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. The detection results (detection signals) by the plurality of slider wheel touch sensors 32 are then transmitted to the operation control unit 12. Thereby, the operation control unit 12 can detect the operation applied to the slider wheel 60 based on the results of detection by the plurality of slider wheel touch sensors 32.

[Display]
Information is displayed on the plurality of display sections 70. In this example, the display section 70 is formed by forming one or more transparent sections on the operation panel 20 that have a shape corresponding to a symbol (design, character, etc.) indicating information to be displayed on the display section 70. It is provided on the operation panel 20. The light emitting section 40 selectively irradiates light from the light emitting section 40 to one or more transparent sections constituting the display section 70, so that information is selectively displayed on the display section 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 numerical display section 72b). It includes an information display section 73a, a second additional information display section 73b), a sequence related information display section 74, and the like.

<Waveform display section>
The waveform display section 71 displays a sequence waveform (the approximate shape of the welding current waveform) according to the welding sequence selected by operating the sequence selection key 51. In this example, by forming a plurality of transparent parts on the operation panel 20 that respectively correspond to a plurality of segments for expressing a plurality of sequence waveforms respectively corresponding to a plurality of welding sequences, the waveform display section 71 can be displayed on the operation panel. 20. Then, a plurality of sequence waveforms are selectively displayed by selectively irradiating light from the light emitting section 40 onto a plurality of transparent sections (segments) constituting the waveform display section 71.

As shown in FIG. 3, in the waveform display section 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 corresponds to a period in which whether or not to perform 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 corresponds 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 a falling period, and the sixth section represented by the seventh segment 71g is a section corresponding to a period in which whether or not to perform crater welding can be selected. The seventh section, which is selectively expressed by the eight segments 71h and the ninth segment 71i, corresponds to the afterflow period, and is expressed by the tenth segment 71j.

<First numerical display section>
An arbitrary numerical value of predetermined digits (three digits in this example) is displayed on the first numerical display section 72a. In this example, the first numerical display section 72a is provided on the operation panel 20 by forming a plurality of transparent sections on the operation panel 20, each corresponding to a plurality of segments for expressing an arbitrary three-digit numerical value. ing. Then, by selectively irradiating light from the light emitting section 40 to the plurality of transparent sections (segments) constituting the first numerical display section 72a, the first numerical display section 72a displays an arbitrary three-digit number. A numerical value is displayed.

<First additional information display section>
The first additional information display section 73a displays a plurality of first additional information regarding the numerical value displayed on the first numerical display section 72a (in this example, "m/min.", "mm", "%", and "A"). and "Hz") are selectively displayed. In this example, by forming on the operation panel 20 a plurality of transparent parts each having a shape corresponding to a plurality of symbols indicating a plurality of first additional information (symbols indicating units, codes, etc.), the first additional information display section 73a is provided on the operation panel 20. The plurality of first additional information is selectively displayed on the first numerical display section 72a by selectively irradiating the plurality of transparent sections constituting the first additional information display section 73a with the light from the light emitting section 40. will be displayed.

<Second numerical display section>
An arbitrary numerical value of predetermined digits (three digits in this example) is displayed on the second numerical display section 72b. Note that the configuration of the second numerical display section 72b is similar to the configuration of the first numerical display section 72a.

<Second additional information display section>
The second additional information display section 73b displays a plurality of second additional information regarding the numerical value displayed on the second numerical display section 72b (in this example, two units "sec." and "V" and a sign "±" ) are displayed selectively. Note that the configuration of the second additional information display section 73b is similar to the configuration of the first additional information display section 73a.

<Sequence related information display section>
The sequence related information display section 74 displays information regarding the welding sequence (for example, whether or not crater welding is performed in the welding sequence) corresponding to the sequence waveform displayed on the waveform display section 71. In this example, the sequence-related information display section 74 is provided on the operation panel 20 by forming a transparent section on the operation panel 20 having a shape corresponding to a symbol indicating information regarding the welding sequence. Information is selectively displayed on the sequence-related information display section 74 by selectively irradiating light from the light-emitting section 40 onto the light-transmitting section constituting the sequence-related information display section 74.

<Waveform touch sensor>
Note that the plurality of touch sensors 30 described above include a plurality of waveform touch sensors 33, each of which corresponds to a part of the sequence waveform displayed on the waveform display section 71. Each of the plurality of waveform touch sensors 33 detects that a part of the sequence waveform displayed on the waveform display section 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 section 71. The detection results (detection signals) by the plurality of waveform touch sensors 33 are then 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 has been touched, based on the results of detection 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 a first segment 71a representing the first section of the sequence waveform, and the second waveform touch sensor 33b corresponds to a second segment 71b representing the second section of the sequence waveform. and the third segment 71c, the third waveform touch sensor 33c corresponds to the fourth segment 71d expressing the third section of the sequence waveform, and the fourth waveform touch sensor 33d and the fifth waveform touch sensor 33e correspond to , respectively correspond to the fifth segment 71e and the sixth segment 71f representing the fourth section of the sequence waveform, and the sixth waveform touch sensor 33f corresponds to the seventh segment 71g representing the fifth section of the sequence waveform. Correspondingly, the seventh waveform touch sensor 33g corresponds to the eighth segment 71h and the ninth segment 71i representing the sixth section of the sequence waveform, and the eighth waveform touch sensor 33h corresponds to the seventh segment 71i of the sequence waveform. This corresponds to the 10th segment 71j representing a section.

<Display window>
The display window 80 displays various images such as images showing welding conditions, 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 the operation control unit]
The operation control unit 12 controls the operation unit 11 so that a startup process is performed when the welding machine 10 is started. Further, the operation control unit 12 controls the operation unit 11 so that various processes such as a sequence selection process (a process for selecting a welding sequence) are performed in the welding machine 10 after startup. In this example, the operation control unit 12 controls the operation unit 11 ( Specifically, the light emitting unit 40) is controlled.

<Start process>
In the startup process, the operation control section 12 controls the operation section 11 so that the operation section 11 enters a predetermined startup initial state.

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

<Sequence selection process>
Further, the operation control unit 12 controls the operation unit 11 so that when the sequence selection key 51 is touched, the sequence selection process is started on the operation unit 11. Then, when the sequence selection key 51 is touched in the sequence selection process, the operation control section 12 controls the operation section 11 so that the sequence waveform displayed on the waveform display section 71 changes according 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 section 71, sequence related information display section 74, and display window 80 are changed to a first state S11, a second state S12, and a third state S13. Set to one of the following. Thereafter, each time the sequence selection key 51 is touched, the states of the waveform display section 71, sequence related information display section 74, and display window 80 sequentially transition to the first state S11, the second state S12, and the third state S13. To go. Furthermore, when the waveform display section 71, sequence related information display section 74, and display window 80 are 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 states of the waveform display section 71, sequence related information display section 74, and display window 80 transition to the fourth state S14. When the sequence selection key 51 is touched when the states of the waveform display section 71, sequence related information display section 74, and display window 80 are set to the fourth state S14, the waveform display section 71 and the sequence related information The states of the display unit 74 and the display window 80 transition to their original states (any one of the first state S11, second state S12, and 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 section 71. Specifically, by lighting up 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, crater welding is performed. The sequence waveform corresponding to the welding sequence without is displayed. In addition, an image in which "no crater" is written in the control method column (that is, an image indicating that the selected welding sequence is a welding sequence without crater welding) is displayed on the display window 80. .

In the second state S12, a sequence waveform corresponding to a welding sequence with crater welding is displayed on the waveform display section 71. Specifically, by lighting up 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, crater welding is performed. The sequence waveform corresponding to the welding sequence with and without is displayed. Further, the display window 80 displays an image in which the words "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). . Further, the sequence related information display section 74 displays a symbol indicating that the sequence waveform displayed on the waveform display section 71 is a sequence waveform corresponding to a welding sequence with crater welding.

In the third state S13, a sequence waveform corresponding to a welding sequence with initial crater welding is displayed on the waveform display section 71. Specifically, by lighting up 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, the initial crater A sequence waveform corresponding to a welding sequence with welding is displayed. In addition, the display window 80 displays an image in which the words "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). be done. Further, the sequence related information display section 74 displays a symbol indicating that the sequence waveform displayed on the waveform display section 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 section 71. Specifically, by lighting up 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, crater welding is performed. The sequence waveform corresponding to the welding sequence without is displayed. Further, the display window 80 displays an image in which the words "arc spot" are written in the control method column.

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

For example, as shown in FIG. 6, when a segment representing the fourth section of the sequence waveform displayed on the waveform display section 71 (fifth segment 71e in the example of FIG. 6) is touched, the touched The segment blinks and the fourth section of the sequence waveform becomes the target of the partial setting process. In the partial setting process for the fourth section of the sequence waveform, the current value is the target of setting. Here, 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 will be done. When the current value in the fourth section of the sequence waveform is the target of setting, the numerical value (i.e., current value) displayed on the first numerical display section 72a changes according to the operation applied to the slider wheel 60. . On the other hand, when the voltage value in the fourth section of the sequence waveform is the target of setting, the numerical value (i.e., voltage value) displayed on the second numerical display section 72b according to the operation given to the slider wheel 60 is Change. Then, when the segment representing the fourth section of the sequence waveform displayed on the waveform display section 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 again. The value (or voltage value) is set (determined) to the current value displayed on the first numerical display section 72a (or the voltage value displayed on the second numerical display section 72b). In addition, in the partial setting process, in addition to the current value and voltage value, the length of processing time such as preflow time, pulse frequency, etc. may be set.

[Effects of embodiment]
As described above, by displaying the sequence waveform (the approximate shape of the welding waveform) on the waveform display section 71 according to the welding sequence selected by operating the sequence selection key 51, the state of the set welding sequence can be manipulated. This can be visually confirmed by a person. This allows the operator to easily operate the welding machine 10.

Furthermore, by changing the sequence waveform displayed on the waveform display section 71 in response to the touch of the sequence selection key 51, the operator can visually check the plurality of sequence waveforms one by one in order. A desired sequence waveform (welding sequence) can be selected from among the following. This allows the operator to easily operate the welding machine 10.

In this example, when a part of the sequence waveform displayed on the waveform display section 71 is touched, partial setting processing (welding Settings related to part of the sequence (specifically, settings of current values or voltage values) are started. Therefore, the operator can easily select a portion (part of the sequence waveform) for which the partial setting process is desired from among the sequence waveforms displayed on the waveform display section 71. This allows the operator to easily operate the welding machine 10.

In addition, by controlling the operation unit 11 so that the operation keys 50 whose operations are valid out of the plurality of operation keys 50 are lit up, and the operation keys 50 whose operations are not valid are turned off, the operator can: An operation key 50 whose operation is valid can be easily found from among the plurality of operation keys 50. This allows the operator to easily operate the welding machine 10.

Further, by providing a plurality of operation keys 50 and a plurality of display sections 70 on the sheet-shaped operation panel 20, the operation surface of the operation section 11 can be made flat. Thereby, cleaning of the operating section 11 can be facilitated.

Furthermore, by making the surface height of the outer peripheral edge 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), the operator can Since the position of the slider wheel 60 can be confirmed by the step on 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. This allows the operator to easily operate the welding machine 10.

(Modified example of embodiment)
Note that the lighting mode of the plurality of operation keys 50 in the lighting state may be switchable. The operation control unit 12 determines that the lighting mode of the operation key 50 that is recommended to be operated next among the plurality of operation keys 50 is the lighting mode of the operation key 50 that is not recommended to be operated next. The operation unit 11 may be controlled in a different manner.

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 emit light of a plurality of colors. The operation control unit 12 determines that the operation key 50 that is recommended to be operated next among the plurality of operation keys 50 is lit in a different color from the illumination color of the operation key 50 that is not recommended to be operated next. The operation unit 11 may be controlled so that the following occurs.

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

As described above, the lighting mode of the operation key 50 that is recommended to be operated next among the plurality of operation keys 50 is different from the lighting mode of the operation key 50 that is not recommended to be operated next. By controlling the operation unit 11 so that the operator can easily find the operation key 50 recommended to be operated next from among the plurality of operation keys 50. This allows the operator to easily operate the welding machine 10.

(Other embodiments)
Furthermore, the above embodiments may be combined as appropriate. The above embodiments are essentially preferred examples, and are not intended to limit the scope of this invention, its applications, or its uses.

As explained above, the technology disclosed herein is useful for welding machines.

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

Claims (7)

An operation section for setting and displaying welding conditions, and an operation control section for controlling the operation section, the operation section comprising:
It has a plurality of operation keys operated by an operator and a plurality of display sections on which information is displayed,
The plurality of operation keys include a sequence selection key that provides an operation for selecting a welding sequence,
The plurality of display sections include a waveform display section that switches and displays three or more sequence waveforms according to the welding sequence selected by operating the sequence selection key,
The waveform display section includes a plurality of visually visible segments representing sections of the sequence waveform having at least two sections arranged in parallel,
a plurality of the segments corresponding to the state of the sequence waveform according to the welding sequence selected by the operation of the sequence selection key are selected;
Further, the sequence waveform is divided into a plurality of sections each corresponding to a plurality of processing steps in the welding sequence,
The operation control section is a section that, when one section of the sequence waveform displayed on the waveform display section is touched, makes settings regarding one processing step of the welding sequence corresponding to one section of the sequence waveform. A welding machine characterized in that the operation section is controlled so that a setting process is started. In claim 1,
The operation control unit controls the operation unit so that when the sequence selection key is touched, the sequence waveform displayed on the waveform display unit changes in accordance with the touch of the sequence selection key. welding machine. In claim 1,
The plurality of display sections include a numerical display section on which an arbitrary numerical value is displayed,
In the welding machine, in the partial setting process, a current value or a voltage value for a part of the welding sequence is set, and the current value or voltage value is displayed on the numerical display section. In any one of claims 1 to 3,
The plurality of operation keys can be switched between a lit state and a non-lit state,
The operation control unit controls the operation unit so that among the plurality of operation keys, operation keys whose operation is valid are lit up, and operation keys whose operation is not valid are turned off. Machine. In claim 4,
The lighting mode of the plurality of operation keys in the lighting state can be switched,
In the operation control unit, an operation key that is recommended to be operated next among the plurality of operation keys is lit in a different manner from an operation key that is not recommended to be operated next. A welding machine characterized in that the operating section is controlled as follows. According to any one of claims 1 to 5, the operating section comprises:
an operation panel formed in a sheet shape and provided with the plurality of operation keys and the plurality of display sections;
a plurality of key touch sensors that respectively correspond to the plurality of operation keys and detect touches of the plurality of operation keys,
The welding machine is characterized in that the operation control unit detects each touch of the plurality of operation keys based on detection results by the plurality of key touch sensors. In claim 6,
The operation unit has a slider wheel that can be operated by an operator,
The slider wheel is formed in an annular shape and is provided on the operation panel,
A welding machine characterized in that a surface height of an outer peripheral edge of the slider wheel is higher than a surface height of a portion of the slider wheel that is closer to the center of the slider wheel than the outer peripheral edge.

Images