JP6564999B2 - Welding machine and display method of welding machine - Google Patents

Description

  The present invention relates to a welding machine that processes an object to be processed by generating an arc, for example, and more particularly to a welding machine that sets and displays welding conditions at an operation unit and a display method for the welding machine.

  A welding machine that generates an arc to process a workpiece (hereinafter referred to as an arc welding machine) includes an operation unit for setting and displaying various welding conditions as shown in the external view of FIG. ing. As this operation unit, an LED display unit 24 composed of a plurality of LED indicators for displaying alphanumeric characters, a switch 23 used for setting welding conditions, and a dial 21 are often used.

  Since arc welding machines have many types of setting items for welding conditions, the operation procedure for setting a large number of setting items using the operation section of such an arc welding machine has become complicated. For this reason, each time the welding conditions are set, it is often necessary to check the operation procedure in the instruction manual. In addition, arc welders have many types of errors, and each error has a different method of handling. Since the operation unit can only display the error number on the LED display unit 24 when an error is detected, the handling method corresponding to the error number must be confirmed using an instruction manual each time an error is detected.

  In order to solve this problem, Patent Document 1 discloses a welding machine including a liquid crystal display that displays character information such as a name so that the operator can easily select welding conditions. Discloses an abnormality monitoring device for a welding machine that outputs an error message corresponding to an error from a voice output unit when an error is detected and displays necessary character information on a display unit.

JP 2010-201499 A JP-A 62-296975

  However, in the welding machine shown in Document 1, even when a liquid crystal display is provided for the operation unit, if the operator is concentrated on the operation of the welding machine or welding work, the liquid crystal display Even if the character information is displayed, it is difficult to notice that the character information is displayed.

Moreover, in the welding machine shown in Patent Document 2, even if an error message is output from the voice output unit, since there are many cases where the welding site is noisy, it is difficult to hear voice guidance and to notice that an error has been detected. .
With respect to the above-described problem, in the present invention, it is easy to notice that the character information is displayed even when the user concentrates on the operation of the operation unit or when performing welding work away from the welding machine. A welding machine and a display method for the welding machine are provided.

  The welding machine of the invention that solves the above problem is an arc welding machine that includes a first display unit and a second display unit in an operation unit that sets and displays welding conditions, and is a first display unit. Corresponding to the display content displayed on the first display unit, the entire screen of the separate second display unit switches from the unlit state to lighting or flashing, and the display content displayed on the first display unit Is displayed on the second display unit to notify the operator.

  In addition to the above, by selecting a welding condition or changing an operation mode on the operation unit, a setting item for welding conditions is displayed on the first display unit, and the first display unit displays Corresponding to the display content of the setting item to be displayed, the second display unit is switched from an unlit state to lighting or blinking, and the name as the character information corresponding to the setting item is displayed. .

  In addition to the above, when an error is detected, the error number blinks and is displayed on the first display unit, and the second display unit switches from the off state to the on state, and the name corresponding to the error number Is displayed.

  In addition to the above, the blinking speed or pattern of the entire screen differs depending on the type or importance of the character information displayed on the second display unit.

  In addition to the above, the color of the entire screen differs depending on the type or importance of the character information displayed on the second display unit.

  Moreover, the welding machine display method of the invention that solves the above problem is a welding machine display method that includes a first display unit and a second display unit in an operation unit that performs setting and display of welding conditions, Corresponding to the display content displayed on the first display unit, the entire screen of the second display unit separate from the first display unit is switched from the unlit state to the lit or blinked state, and the first display The character information corresponding to the display content displayed on the part is displayed on the second display part to notify the operator.

  In addition to the above, by selecting a welding condition or changing an operation mode on the operation unit, a setting item for welding conditions is displayed on the first display unit, and the first display unit displays Corresponding to the displayed display content, the second display section is switched from an unlit state to lighting or blinking, and a name corresponding to the setting item is displayed.

  According to the present invention, in response to the display content displayed on the first display unit, the entire screen of the second display unit is switched to lighting or blinking, and the display content displayed on the first display unit is changed to the display content displayed on the first display unit. Correspondingly, the operator is notified by displaying character information on the second display unit. This makes it easy to notice that the character information has been displayed even when the operator is concentrating on the operation at the operation unit or the welding work away from the welding machine. For this reason, it is possible to shorten the time required for setting the welding conditions and from the occurrence of the error to the cancellation, and it is possible to improve the productivity at the welding site.

The figure which shows schematic structure of the circuit of the arc welding machine in embodiment of this invention The figure which shows the external appearance of the operation part of the arc welding machine in embodiment of this invention The figure which shows an example (at the time of "detailed setting mode") corresponding to the operation procedure of the operation part of the welding machine in embodiment of this invention The figure which shows an example ("welding condition preservation | save mode") of the display corresponding to the operation procedure of the operation part of the arc welding machine of embodiment of this invention The figure which shows an example (at the time of error detection) of the display corresponding to the operation procedure of the operation part of the arc welding machine of embodiment of this invention The figure which shows the external appearance of the operation part of the conventional arc welding machine

[Embodiment 1]
A welding machine according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a diagram showing a schematic configuration of a circuit of an arc welder in an embodiment of the present invention. FIG. 2 is a diagram showing the appearance of the operation unit of the arc welder in the embodiment of the present invention. FIGS. 3 to 5 are diagrams showing an example of display corresponding to the operation procedure of the operation unit of the arc welding machine according to the embodiment of the present invention, and display contents displayed when an operation is performed in each procedure. Yes.

  1 and 2, the operation unit 1 of the arc welder according to the embodiment of the present invention includes a first switch 3 used for mode switching and a second determination switch used for determining a welding condition value. And a switch unit 2 including a plurality of switches including the switch 4. Furthermore, from the dial part 5 which consists of the 1st dial 6 and the 2nd dial 7 used for adjustment of the value of welding conditions, the 1st LED indicator 9 and the 2nd LED indicator 10 which are LED indicators. The first display unit 8 and the second display unit 11 are provided separately from the first display unit 8.

  In the present embodiment, an indirect light emission type liquid crystal display with a backlight is used as the second display unit 11. However, the display can display character information in a changeable manner and can control the turn-off state, lighting and blinking of the entire screen. A self-luminous type such as an organic EL display may be used as long as it is a display.

  In FIG. 1, the arc welder according to the embodiment of the present invention includes an operation unit 1, an operation control unit 13 for receiving an operation from the operation unit 1 and instructing the operation unit 1 to display, And a lighting control unit 12 that controls the lighting state, lighting state, and blinking state of the entire screen of the second display unit 11. Further, a welding control unit 14 that controls the welding current and welding voltage during arc welding according to the welding conditions set by the operation control unit 13, and a power supply circuit for outputting the welding current controlled by the welding control unit 14 The output unit 15 is provided.

  The operation of the arc welder configured as described above will be described.

  When the switch unit 2 and the dial unit 5 are operated, the operation control unit 13 displays a setting item corresponding to the operation on the first display unit 8, and a character displayed on the second display unit 11 corresponding to the setting item. Determine if there is information. If there is character information to be displayed on the second display unit 11, the operation control unit 13 displays a name corresponding to the setting item displayed on the first display unit 8 on the second display unit 11 and lights up. The control unit 12 is instructed to switch the entire screen of the second display unit 11 from the extinguished state to light (see procedure (2) in FIG. 3) or blink.

  In this way, the entire screen of the second display unit 11 that is separate from the first display unit 8 switches from the unlit state to the lit or flashing state corresponding to the display content displayed on the first display unit 8. At the same time, the character information corresponding to the display content of the first display unit 8 can be displayed on the second display unit 11 to notify the operator. As a result, even if the operator concentrates on the operation on the operation unit 1 or the welding work away from the welding machine, the first display unit 8 is confirmed and displayed on the first display unit 8. It is easy to notice that the second display unit 11 such as character information displayed corresponding to the content being displayed has switched from the unlit state to the lit or blinking state.

The name corresponding to the setting item is, for example, a name for identifying the setting item (see step (2) in FIG. 3), or a setting to be performed by the operator for the selectable setting item. This refers to the name of the operation procedure (see procedure (2) in FIG. 4). In addition, the entire screen of the second display unit 11 here refers to a state where the entire screen area or an area of 55% or more, preferably 60% or more, emits light.
Further, the light-off state refers to a state in which the second display unit 11 is turned off or appears to be turned off with low luminance light emission. (Hereafter, the unlit state is referred to as unlit)
The lighting control unit 12 switches on / off of the entire screen by switching on / off the current flowing in the backlight of the liquid crystal display as the second display unit 11 based on an instruction from the operation control unit 13.

  As described above, the second display unit 11 is normally turned off, and the operator is notified by turning on or blinking so that the character information can be displayed. Since the welding site is usually indoors and often dark, even if the operator concentrates on the operation in the operation unit 1 or welding work away from the welding machine, such a notification accompanied with the change in light Is easy for the operator to notice.

  Moreover, the 1st display part 8 and the 2nd display part 11 which are provided on the same operation surface of the operation part 1 are separate bodies arrange | positioned mutually spaced apart. For this reason, lighting or blinking of the first display unit 8 and lighting or blinking of the second display unit 11 are not easily confused. As a result, even if the operator concentrates on the operation on the operation unit 1 or the welding work away from the welding machine, the first display unit 8 is confirmed and displayed on the first display unit 8. It is easy to notice that the second display unit 11 such as character information displayed corresponding to the displayed content is switched from the unlit state to the lit or blinking corresponding to the content displayed on the first display unit 8.

  In the arc welder according to the embodiment of the present invention, the operation mode is switched by operating the first switch 3. The operation modes include “welding operation mode”, “detailed setting mode”, and “welding condition storage mode”, and the setting items that can be set differ depending on the selected operation mode. Among these, the “welding operation mode” is a basic mode that can output a welding current and is normally selected during the welding operation.

  Hereinafter, as an example of the normal time when the second display unit 11 is turned off, a welding condition setting method and display example in the “welding operation mode” will be described. In the “welding operation mode”, it is possible to set a welding current and a welding voltage, which are welding conditions whose settings are changed most frequently during the welding operation.

  When “welding operation mode” is selected, the value of the welding current and the value of the welding voltage are respectively displayed on the first LED display 9 and the second LED display 10 of the first display unit 8; The second display unit 11 is turned off without displaying character information. Turning the first dial 6 of the dial unit 5 changes the welding current displayed on the first LED indicator 9, and turning the second dial 7 displays it on the second LED indicator 10. The welding voltage is changed.

  Hereinafter, as an example in which a name for identifying a setting item is displayed on the second display unit 11, examples of display in each operation procedure in the “detailed setting mode”, steps (1) to ( A description will be given along 4). The “detailed setting mode” is an operation mode for setting various setting items of welding conditions other than the welding current and welding voltage that can be set in the “welding operation mode”.

  The “welding operation mode” is normally selected such as in the procedure (1) and during the welding operation, and the second display unit 11 has no character information and is turned off.

  In step (2), the first switch 3 which is a switch for switching the operation mode is operated to switch to the “detail setting mode”. When the mode is switched to the “detailed setting mode”, the number for identifying the setting item and the value of the setting item are respectively displayed on the first LED display 9 and the second LED display 10 as the first display unit 8. In addition to being displayed, the entire screen of the second display unit 11 switches from turning off to lighting, and the name for identifying the setting item is displayed on the first line of the second display unit 11 and can be set on the second line Range of values is displayed.

  Specifically, in the example of the procedure (2) in FIG. 3, “001” displayed on the first LED display 9 is a number for identifying the setting item, and for identifying the setting item. The name is “fine adjustment of wire speed” displayed on the first line of the second display unit 11. “10” displayed on the second LED display 10 is the value of the setting item, and “range: −50 to 50 [%]” displayed on the second line of the second display unit 11 is The lower limit of the settable value is -50, the upper limit is 50, and the unit is [%] (percent).

  By turning the first dial 6 of the dial section 5 in the procedure (3), the selected setting item is switched, and the first LED display 9 of the first display section 8 and the second display section 11 are switched. Is switched to a setting item and a display corresponding to the setting item. Further, when the second dial 7 of the dial unit 5 is turned, the value of the setting item can be adjusted, and the value is within the range of the setting item displayed on the second LED display 10 of the first display unit 8. Selected.

  By operating the second switch 4 which is the determination switch (4), the change of the value of the selected setting item is confirmed, the operation mode is switched to the “welding work mode”, and the second display unit 11 Is turned off. At the same time, the changed value of the set item determined in the welding control unit 14 is instructed as a welding condition.

  Hereinafter, as an example in which the name of the setting operation procedure is displayed on the second display unit 11, an example of display in each operation procedure in the “welding condition storage mode” is shown in steps (1) to ( A description will be given along 4). The “welding condition storage mode” is an operation mode for storing the welding conditions set in the “welding operation mode” and the “detailed setting mode” in the memory of the arc welder.

  The “welding operation mode” is normally selected such as in the procedure (1) and during the welding operation, and the second display unit 11 has no character information and is turned off.

  In step (2), the first switch 3 which is a switch for switching the operation mode is operated to switch to the “welding condition storage mode”. When the mode is switched to the “welding condition storage mode”, the channel number indicating the storage area of the memory is displayed as a setting item on the first display unit 8 (the first LED display 9 and the second LED display 10). Then, the entire screen of the second display unit 11 is switched from being turned off to being turned on, and the operation procedure to be performed next by the operator is displayed on the first to second lines of the second display unit 11.

  Specifically, in the example of the procedure (2) in FIG. 4, “CH−” is displayed on the first LED display 9 in the first display unit 8, and the channel is displayed on the second LED display 10. The number “001” is displayed to indicate that the channel 001 is selected. The second display unit 11 displays “Select a channel number with the right dial and save it with the enter switch” as an operation procedure to be performed next by the operator. The right dial refers to the second dial 7 on the right side of the dial portion 5 and is arranged on the right side with respect to the first dial 6 in the embodiment of the present invention as shown in FIG. Therefore, it is displayed like this.

  When the second dial 7 is turned according to the procedure (3) and the display on the second display unit 11, the selected channel number is switched and displayed on the second LED display 10 of the first display unit 8. The channel number changes.

  By operating the second switch 4 which is a decision switch according to the display of the procedure (4) and the second display unit 11, the welding conditions are stored in the storage area of the selected channel number, and the operation mode is “welding operation”. The mode is switched to “mode”, and the second display unit 11 is turned off.

  As described above, the arc welder according to the embodiment of the present invention is visible even from a distance so that it is easy to check the welding conditions such as the welding current and the welding voltage even when performing welding work away from the welder. A good LED display is provided as the first display unit 8, and the entire screen of the liquid crystal display, which is the second display unit 11 separate from the first display unit 8, switches from turning off to turning on or flashing. At the same time, the character information is displayed on the second display unit 11 to notify the operator.

  In addition to the embodiment of the present invention, as a means for improving the operability of the arc welder, a GUI (Graphical User Interface) is constructed using a large liquid crystal display, and welding conditions are displayed on one screen. A method of displaying operation procedures, etc. is conceivable, but welding conditions such as welding current and welding voltage are compared to those used in combination with an LED indicator so that it is easy to check welding conditions such as welding current and welding voltage. Visibility from far away is poor.

  For this reason, as in the present invention, the second display unit 11 separate from the first display unit 8 is used in combination with the first display unit 8 which is an LED display with good visibility even from a distance. It is desirable that the entire screen of a certain liquid crystal display is switched from a light-off state to lighting or blinking, and character information is displayed on the second display unit 11 to notify the operator.

  As described above, in the arc welder according to the embodiment of the present invention, names corresponding to the setting items displayed on the first display unit 8 are displayed on the second display unit 11. When an error is detected, in the arc welder according to the embodiment of the present invention, a name corresponding to the error number displayed on the first display unit 8 is displayed on the second display unit 11.

  In the following, as an example in which the name corresponding to the error number is displayed on the second display unit 11, a display example in each operation procedure when the arc welder of the embodiment of the present invention detects an error is shown in FIG. Description will be made along procedures (1) to (3).

  The “welding operation mode” is normally selected such as in the procedure (1) and during the welding operation, and the second display unit 11 has no character information and is turned off.

  In step (2), when the arc welder detects an error, the first display unit 8 (the first LED display 9 and the second LED display 10) is switched from lighting to blinking and an error number is displayed. At the same time, the entire screen of the second display unit 11 switches from turning off to lighting, the name corresponding to the error number is displayed on the first line of the second display unit 11, and the second line of the second display unit 11 is displayed. The corrective action corresponding to the error number is displayed.

  Specifically, in the example of the procedure (2) in FIG. 5, “Err” blinks on the first LED display 9 in the first display unit 8, and the second LED display 10 displays “03”, which is the error number of the error detected by the welding machine, is displayed blinking. The name ““ temperature rise error ”” corresponding to the error number is displayed on the first line of the second display unit 11, and the countermeasure “temperature” corresponding to the error number is displayed on the second line of the second display unit 11. "Wait until it falls" is displayed. The temperature rise error is an error that occurs when the temperature of the output unit 15 of the welding machine becomes equal to or higher than a threshold value.

  When the cause of the error is resolved in the procedure (3), the display on the first display unit 8 and the second display unit 11 returns to the display of the procedure (1) before the error detection, and the second display unit 11 Turns off.

  As described above, in the arc welder according to the embodiment of the present invention, when an error is detected, the second display unit 11 that is separate from the first display unit 8 is provided as the first display unit 11. Corresponding to the display content displayed on the display unit 8, the first display unit 8, which is an LED display with good visibility even from a distance, is switched from blinking to blinking. The error number is displayed. This is because the display displayed on the second display unit 11 corresponding to the display content displayed on the first display unit 8 and the first display unit 8 is not related to the setting of the operation item. This is to make it easy for the operator to identify the error display even when performing welding work away from the welding machine. The second display unit 11 corresponds to the display content displayed on the first display unit 8 so that the character information displayed corresponding to the display content displayed on the first display unit 8 can be easily confirmed. When the error is dealt with, the second display 11 confirms the name corresponding to the error number and the coping method so that the error can be promptly confirmed without checking the instruction manual. Can deal with it.

  In the present invention, since the second display unit 11 itself used for displaying the name corresponding to the error number and the coping method is switched from the off state to the on state for notification, the second display unit 11 that is lit up. It is easy to understand intuitively that you have to confirm. On the other hand, when an indicator such as a signal tower added separately to the welder and an indicator such as a liquid crystal display are used together as a means for notifying an error, the error can be noticed by turning on the signal tower. It is cumbersome and not intuitive because it is necessary to check the display on a display device provided in a different place from the tower.

  In the arc welder according to the embodiment of the present invention, the color of the backlight of the liquid crystal display that is the second display unit 11 is changed according to the type or importance of the character information displayed on the second display unit 11. Let For example, text information related to an error that requires an urgent action such as an error at an emergency stop is lit in red. Lights up in blue when the text information is not directly related to.

  Thus, when character information is displayed on the second display unit 11 while performing welding work away from the arc welder, the color of the entire screen of the second display unit 11 is confirmed. It becomes possible to determine whether it is necessary to check the character information until the welding operation is interrupted and the process returns to the welding machine.

  In the arc welder according to the embodiment of the present invention, depending on the type or importance of information displayed on the second display unit 11, the flashing speed of the backlight of the liquid crystal display as the second display unit 11 Change the pattern. For example, text information related to an error that requires urgent action flashes quickly, text information related to an error that does not require urgent action flashes slowly, and text information that is not related to an error lights up without flashing. The

  Thereby, when the character information is displayed on the second display unit 11 while performing welding work away from the arc welder, the blinking speed and pattern of the second display unit 11 are confirmed. Thus, it is possible to determine whether or not it is related to error information, and if it is error information, the degree of urgency. For this reason, if it is error information, it can be determined whether urgent action is required, so that it is possible to determine whether it is necessary to check the character information until the welding operation is interrupted and returned to the welding machine. Become.

  By making it easier to notice the display of character information such as operating procedures and how to deal with errors, it is possible to shorten the time it takes to set welding conditions and resolve errors, and improve welding site productivity be able to. Moreover, since it becomes easy to notice the error, it is possible to quickly deal with an important error related to the welding failure, and thus it is possible to prevent the occurrence of a defective product.

DESCRIPTION OF SYMBOLS 1 Operation part 2 Switch part 3 1st switch 4 2nd switch 5 Dial part 6 1st dial 7 2nd dial 8 1st display part 9 1st LED indicator 10 2nd LED indicator 11 Second display unit 12 Lighting control unit 13 Operation control unit 14 Welding control unit 15 Output unit

Claims (7)

A welding machine including a first display unit and a second display unit in an operation unit for setting and displaying welding conditions, and the entire screen of the second display unit separate from the first display unit Corresponding to the display content displayed on the first display unit, the display is switched from the unlit state to lighting or flashing, and character information corresponding to the display content displayed on the first display unit is displayed on the second display unit. Welding machine that displays on and notifies the operator. By selecting the welding condition or changing the operation mode in the operation unit, the setting item of the welding condition is displayed on the first display unit, and the setting item displayed on the first display unit is displayed. 2. The welding machine according to claim 1, wherein the second display unit is switched from a light-off state to lighting or blinking in accordance with display contents, and a name as the character information corresponding to the setting item is displayed. 2. When an error is detected, the error number blinks and is displayed on the first display unit, and the second display unit switches from the off state to the on state, and the name corresponding to the error number is displayed. The welding machine as described in. The welding machine according to claim 1, wherein the blinking speed or pattern of the entire screen differs according to the type or importance of the character information displayed on the second display unit. The welding machine according to claim 1, wherein the color of the entire screen differs according to the type or importance of the character information displayed on the second display unit. It is a display method of a welding machine provided with a first display unit and a second display unit in an operation unit for setting and displaying welding conditions, corresponding to the display content displayed on the first display unit, The entire screen of the second display unit that is separate from the first display unit is switched from the unlit state to the lit or blinked state, and character information corresponding to the display content displayed on the first display unit is displayed in the second display unit. Display method of the welder to be displayed on the display part of and notify the operator. By selecting the welding condition or changing the operation mode in the operation unit, the setting item of the welding condition is displayed on the first display unit, and corresponds to the display content displayed on the first display unit. The welding machine display method according to claim 6, wherein the second display unit is switched from a light-off state to lighting or blinking, and a name corresponding to the setting item is displayed.