WO2012032702A1

WO2012032702A1 - Welding machine

Info

Publication number: WO2012032702A1
Application number: PCT/JP2011/003950
Authority: WO
Inventors: 英樹井原; 憲和大崎; 芳行田畑; 田中　義朗
Original assignee: パナソニック株式会社
Priority date: 2010-09-08
Filing date: 2011-07-11
Publication date: 2012-03-15
Also published as: JPWO2012032702A1; JP5594356B2; CN102548701B; CN102548701A

Abstract

This welding machine is a welding machine used by connecting with a welding torch and is provided with: a setting unit for setting information relating to an object to be welded; a storage unit for storing a plurality of pairs each formed by associating the value of a first welding condition item that is a welding condition item settable for the information relating to the object to be welded and the welding machine and the value of a second welding condition item that is a welding condition item not settable for the welding machine with each other; a control unit for selecting the value of the first welding condition item and the value of the second welding condition item from the storage unit on the basis of the information relating to the object to be welded, the information being set by the setting unit; a first display unit for displaying the value of the first welding condition item extracted by the control unit; and a second display unit for displaying the value of the second welding condition item extracted by the control unit, thereby facilitating the setting of welding conditions by a worker.

Description

Welding machine

The present invention relates to an apparatus for processing an object to be processed by generating an arc, and particularly to a welding machine equipped with a programmable device such as a CPU for performing digital control.

In general, in an apparatus such as a welding machine that generates an arc from an electrode and melts a base material that is a workpiece, an output control circuit for controlling the current and voltage of the arc generated between the electrode and the base material And a gas control circuit for controlling the shield gas for protecting the arc from the outside air, and a start circuit for assisting the generation of the arc. In addition, in the case of a consumable electrode type arc welder, in addition to these, a feed control circuit for controlling the feed of a welding wire that is a consumable electrode is provided.

In recent years, these output control circuits, gas control circuits, and start control circuits have been configured using programmable devices such as a CPU (Central Processing Unit) and are controlled by software in order to achieve higher performance of equipment. Have become commonplace and are popular as digitally controlled welders.

This digitally controlled welding machine has a plurality of welding methods, and detailed conditions can be set for each welding method. For example, there are a DC welding mode in which the output is DC when the workpiece is iron or stainless steel, and an AC welding mode in which the output is AC output when the workpiece is aluminum.

Also, a pulse welding method in which the output is a pulse waveform according to the state of the workpiece, the conditions of the pulse frequency and pulse width at that time, or the output current and gas flow time that change according to the thickness of the workpiece The welding is controlled according to the settings of many parameters.

In order to set these parameters, a digital control welding machine is known which includes an encoder called a jog dial, an LED (Light Emitting Diode) display device, and the like (for example, see Patent Document 1). Normally, these parameters are set with reference to the knowledge and experience of the welding operator or the construction conditions in the instruction manual.

Hereinafter, a conventional arc welder equipped with a jog dial and an LED display device will be described with reference to FIG. FIG. 5 is a diagram showing a schematic configuration of a conventional welding machine.

In FIG. 5, the arc welding machine has an operation unit 4, and the operation unit 4 is provided with a jog dial 1 for setting conditions, a switch 2 for setting conditions, and an LED display unit 3 for displaying alphanumeric characters. ing. The arc welder includes a control unit 5, a welding control unit 6, an output drive unit 7, a shield gas drive circuit 8, a start device drive circuit 9, and a wire feed motor drive circuit 10. Yes. Here, the control unit 5 performs welding control by correcting the conditions according to the welding-related parameters set using the operation unit 4. The welding control unit 6 performs welding control based on a command from the control unit 5. The output drive circuit 7 is controlled by the welding control unit 6.

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

Generally, arc welders are roughly classified into two types: consumable electrode arc welders and non-consumable electrode arc welders. In the consumable electrode type arc welding machine, the rotation setting of the wire feeding motor for supplying the welding wire to the welding point is performed. Except for this setting, both welding machines have almost the same condition setting items. . Main condition setting items include selection of AC output or DC output, welding current value, gas flow time, selection of pulse welding to determine whether or not to perform pulse welding, and the like.

In addition, regarding the arc welder, in the initial state, the factory default value is set as a parameter for the welding condition. The operator selects a welding condition item by operating the switch 2 and sets a numerical value for the welding condition item selected by operating the jog dial 1. Thereby, the setting of the welding conditions in the control unit 5 is changed. The numerical value set for the welding condition item is displayed on the LED display unit 3 and can be confirmed by the operator. And the condition required for the target welding is set by setting the value for every welding condition item, and welding is actually started after that. Each set value determined by the control unit 5 is sent to the welding control unit 6. The welding control unit 6 operates the output drive circuit 7, the shield gas drive circuit 8, and the start device drive circuit 9 in accordance with the set values that have been sent. Thereby, welding can be performed on the welding conditions set by the operator.

If the conventional welding machine is used in this way, it is possible to input the welding condition setting numerically and to set the accurate condition.

However, in the conventional welding machine as described above, when setting the welding conditions, starting with the selection of the welding method and the setting of the welding current, whether to set many setting items based on the knowledge and experience of the operator, Alternatively, it is necessary to set based on reference materials such as an instruction manual. For this reason, it takes time to set, and there is a problem that only a skilled worker can make a correct setting.

Design Registration No. 1274142

In order to solve the above problems, an arc welding machine of the present invention is a welding machine that is used by connecting a welding torch, and a setting unit for setting information on a welding object, and information on the welding object Corresponds to the value of the first welding condition item that is a welding condition item that can be set for the welding machine and the value of the second welding condition item that is a welding condition item that cannot be set for the welding machine. A storage unit that stores a plurality of attached sets, and a value of a first welding condition item and a value of a second welding condition item are selected from the storage unit based on information on the welding object set by the setting unit A first display unit for displaying the value of the first welding condition item extracted by the control unit, and a second for displaying the value of the second welding condition item extracted by the control unit. And a display unit.

As described above, according to the present invention, it is possible to set welding conditions suitable for a welding object in the welding machine by setting information on the welding object. Moreover, although it is information that cannot be set in the welding machine, important information regarding welding can be displayed on the display unit and presented to the operator. Therefore, a welder that can improve weldability can be realized.

FIG. 1 is a diagram showing a schematic configuration of a welding machine according to Embodiment 1 of the present invention. FIG. 2 is a diagram showing an appearance of the welding machine according to Embodiment 1 of the present invention. FIG. 3 is a diagram showing a schematic configuration of an operation part of the welding machine according to Embodiment 1 of the present invention. FIG. 4 is a diagram showing an example of condition setting and display of the welding machine according to Embodiment 1 of the present invention. FIG. 5 is a diagram showing a schematic configuration of a conventional welding machine.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following drawings, the same components are denoted by the same reference numerals, and the description thereof may be omitted.

(Embodiment 1)
The welding machine of this Embodiment is demonstrated using FIGS. 1-4. FIG. 1 is a diagram showing an outline of a circuit configuration of a welding machine in the present embodiment. FIG. 2 is a view showing the appearance of the welder in the present embodiment. FIG. 3 is a diagram showing an operation portion of the welding machine in the present embodiment. FIG. 4 shows an example of condition setting and display of the welding machine in the present embodiment.

In the present embodiment, an arc welding machine that performs welding by generating an arc between a welding electrode and a welding object will be described as an example. And the welding machine of this Embodiment has an external appearance as shown in FIG. 2, and the setting part 11 and the condition change part 16 which are mentioned later are provided in the front of the welding machine. The setting unit 11 and the condition changing unit 16 have a configuration as shown in FIG.

1, the setting unit 11 of the welding machine includes a jog dial 1 as an encoder and a plurality of switches 2 that are operated to set information about welding objects and set welding conditions.

The welding machine also includes information on the welding object, values of the first welding condition item and the first welding condition item, which are welding condition items that can be set for the welding machine, and settings that are not set for the welding machine. A storage unit 12 is provided for storing a plurality of sets in which the second welding condition item, which is a possible welding condition item, and the value of the second welding condition item are associated with each other.

Further, the welding machine includes a control unit 13, a first display unit 14, and a second display unit 15. Here, the control unit 13 is a simple setting function for extracting the value of the first welding condition item and the value of the second welding condition item from the storage unit 12 based on the information regarding the welding object set by the setting unit 11. It is a thing with. The first display unit 14 displays the value of the first welding condition item extracted by the control unit 13. The second display unit 15 displays the value of the second welding condition item extracted by the control unit 13. In addition, as an example of the 1st display part 14 and the 2nd display part 15, the LED display for an alphanumeric display, a liquid crystal panel display, etc. can be used. FIG. 3 shows an example in which the first display unit 14 is an LED display, and the second display unit 15 is a liquid crystal panel display.

In addition, regarding the welding machine according to the present embodiment, those having the same functions as those of the conventional welding machine described with reference to FIG.

Although not described here, in the case of a consumable electrode arc welder, a wire feed motor drive circuit for feeding wires is provided in addition to the above-described configuration.

The main points different from the conventional welding machine described in the background art are the storage unit 12 and the control unit 13 that selects the value of the first welding condition item and the value of the second welding condition item from the storage unit 12. And a first display unit and a second display unit. Here, the memory | storage part 12 is the welding condition item which cannot be set with respect to the information regarding a welding target object, the value of the 1st welding condition item which is a welding condition item which can be set with respect to a welding machine, and a welding machine. A plurality of sets in which the values of the second welding condition items are associated with each other are stored. The control unit 13 selects the value of the first welding condition item and the value of the second welding condition item from the storage unit 12 based on the information related to the welding object set by the setting unit 11. The first display unit 14 displays the value of the first welding condition item extracted by the control unit 13. The second display unit 15 displays the value of the second welding condition item extracted by the control unit 13.

The operation of the welding machine configured as described above will be described. An operator of the welding machine inputs information related to the welding object by operating the jog dial 1 and the switch 2 constituting the setting unit 11 of the welding machine. Here, as an example of the information regarding a welding target object, the material of a welding target object, the thickness of a welding target object, the joint shape of a welding part, a welding attitude | position, etc. are mentioned. The mode selection is performed by pressing the switch 1 by the operation (1) in FIG. 4, and the input mode of the welding object is selected. In FIG. 4, using the second display unit 15, as the information on the welding object, the material (displayed as “Weighing”), thickness (displayed as “Atsusa”), and joint shape (“tsugite”) In this example, the welding posture (displayed as “shisei”) is input and set in this order (operations (2) to (5)). Then, by pressing the switch 3 in the operation (6), the welding conditions that cannot be set by the welding machine are displayed from the conditions of the welding object input by the second display unit.

The storage unit 12 cannot set information on the welding object, values of welding condition items that can be set in the welding machine associated with the information on the welding object, and welding machines associated with the information on the welding object. A plurality of sets of values of various welding condition items are stored. Note that the values of these items are the most suitable welding conditions for the input information about the welding object, and are obtained in advance by a welding experiment or the like and stored in the storage unit 12 in advance. .

情報 Information on the welding object is input by the operation of the setting unit 11 by the operator of the welding machine. Then, the control unit 13 extracts the welding conditions that can be set in the welding machine that matches the input information related to the welding object and the values of the parameters that constitute the welding conditions from the storage unit 12 and sets them in the welding machine. To be displayed on the first display unit 14. Further, the control unit 13 extracts from the storage unit 12 welding conditions that cannot be set in the welding machine that matches the input information related to the welding object, and causes the second display unit 15 to display the welding conditions.

Here, the welding conditions that can be set in the welding machine, and the welding condition items displayed on the first display unit 14 include, for example, a welding method, a welding current, Preflow time, afterflow time, pulse presence / absence selection, pulse current, pulse frequency, pulse width, crater presence / absence selection, initial current, crater current, up slope time, down slope time, AC waveform, AC frequency, EN ratio, AC DC ratio AC / DC frequency and the like. In addition, in the case of a consumable electrode arc welder, a welding voltage can also be included.

In addition, after actually performing welding, there is a case where an operator may want to change the welding conditions that can be set in the welding machine based on the welding result. Therefore, the welding conditions displayed on the first display unit 14 can be set. The values of various welding condition items can be changed using the condition changing unit 16 shown in FIG. As the change method, the condition switch 18 (any one of the conditions SW1 to SWn) corresponding to each welding condition item that can be set in the welding machine is pressed. Thereby, the welding condition item to be changed is selected, and then the value is changed by operating the jog dial 17 for changing the welding condition.

Further, welding condition items that cannot be set in the welding machine, and examples of the welding condition items displayed on the second display unit 15 include, for example, a flow rate of shield gas, a diameter of a filler wire, and a non-consumable electrode. Examples include the diameter and the tip angle of the non-consumable electrode. These items are items that cannot be set directly in the welding machine, but are important parameters when welding. And it is also a difficult parameter to set for an operator with little welding experience.

The value displayed on the first display unit 14 is set as a welding condition by the control unit 13 and sent to the welding control unit 6. In addition, the worker performs an operation for performing welding in accordance with the welding condition item and its value displayed on the second display unit 15 that displays the welding condition item that cannot be set in the welding machine. For example, consider the case where the second display unit 15 displays the shield gas flow rate, the diameter of the filler wire, the diameter of the non-consumable electrode, and the tip angle of the non-consumable electrode as shown in FIG. In this case, the operator sets the gas flow rate to 10 L (liter) by operating a gas regulator or the like that is provided outside the welding machine and can change the gas flow rate, and has a diameter as a filler. Is attached to a filler feeder not shown. In addition, the operator attaches a non-consumable electrode having a diameter of 2.4 mm and a tip angle of 30 ° to a welding torch (not shown).

Then, after the setting of the welding condition items that can be set in the welding machine and the setting of the welding condition items that cannot be set in the welding machine are completed as described above, actual welding is performed.

It should be noted that the values of items that can be set in the welding machine displayed on the first display unit 14 are changed by operating the condition switch 18 (condition SW1 to condition SWn) constituting the condition changing unit 16 and the jog dial 17 for changing the condition. In this case, the information displayed on the second display unit 15 is erased by the control unit 13.

The reason why the information displayed on the second display unit 15 is deleted will be described below. The information displayed on the first display unit 14 and the second display unit 15 is an optimum value for the welding object that matches the information on the welding object input to the setting unit 11 constituting the welding machine. Is displayed. Therefore, when one value among the values of the welding condition items displayed on the first display unit 14 is changed, the value of the welding condition item displayed on the second display unit 15 is This is because it cannot be said to be an optimum value for the welding object. And the value of a new welding condition item is displayed on the 2nd display part 15 as an optimal value with respect to a welding target object.

As described above, according to the welding machine of the present embodiment, the welding condition suitable for this is stored by setting information on the welding object using the jog dial 1, the switch 2, or the first display unit 14. It can be set by selecting from the section 12. That is, the welding conditions that can be set in the welding machine can be automatically set in the welding machine based on the information related to the welding object.

Thus, for example, even an operator who does not have knowledge about the welding conditions inputs information to the welding machine that can be grasped while visually confirming the information. Thereby, since appropriate welding conditions are selected from the welding conditions memorize | stored in the memory | storage part 12, and it sets to a welding machine, the convenience becomes very high.

Furthermore, welding conditions that cannot be set in the welding machine can be displayed on the second display unit 15 and presented to the operator. Thereby, even an operator who does not have knowledge about welding conditions cannot know the information that is important for performing welding although it cannot be set in the welding machine. Moreover, it becomes possible for a worker to implement | achieve better welding by responding based on the information, and the convenience can further be improved.

In the present embodiment, an example in which the first display unit 14 and the second display unit 15 are separately provided has been described. However, the first display unit 14 and the second display unit 15 are integrated, for example, 1 It can also be one large LCD.

Further, in the present embodiment, an example in which two jog dials, that is, the jog dial 1 provided in the setting unit 11 and the jog dial 17 provided in the condition changing unit 16 is provided. Unlike this, for example, the condition changing unit 16 may not be provided with the jog dial 17, but the information displayed on the first display unit 14 may be changed by the jog dial 1 provided in the setting unit 11.

That is, the welding machine of the present invention is a welding machine that uses a welding torch connected thereto, and is a setting unit 11, a storage unit 12, a control unit 13, a first display unit 14, and a second display. Part 15. Here, the setting part 11 sets the information regarding a welding target object. The storage unit 12 includes information on the welding object, a value of a first welding condition item that is a welding condition item that can be set for the welding machine, and a welding condition item that cannot be set for the welding machine. A plurality of sets in which the values of the two welding condition items are associated are stored. The control unit 13 selects the value of the first welding condition item and the value of the second welding condition item from the storage unit 12 based on the information related to the welding object set by the setting unit 11. The first display unit 14 displays the value of the first welding condition item extracted by the control unit 13. The second display unit 15 displays the value of the second welding condition item extracted by the control unit 13.

With this configuration, it is possible to set welding conditions suitable for the welding object in the welding machine by setting information on the welding object. Moreover, although it is information that cannot be set in the welding machine, important information regarding welding can be displayed on the second display unit 15 and presented to the operator. Therefore, a welder that can improve weldability can be realized.

In addition to the above, in the welding machine according to the present invention, the control unit 5 determines the value of the second welding condition item and the second value from the storage unit 12 based on the information related to the welding object set by the setting unit 11. It is good also as a structure which displays the value of the 2nd welding condition item and the 2nd welding condition item which the control part 5 selected on the 2nd display part 15 selected.

With this configuration, by setting information related to the welding object, it is possible to select and display from the storage unit 12 a welding condition that is not suitable for this setting. That is, the welding conditions that cannot be set in the welding machine can be automatically displayed on the welding machine based on the information related to the welding object.

In addition to the above, the welding machine of the present invention further includes a condition changing unit 16 that changes the value of the first welding condition item displayed on the first display unit 14. The display content displayed on the second display unit 15 may be erased when the value of the displayed first welding condition item is changed.

With this configuration, when at least one value of the welding condition items is changed, a value that cannot be said to be the optimum value for the welding object is never displayed on the second display unit 15. . Thereby, it can prevent that the welding conditions which are not optimal are instruct | indicated.

In the welding machine of the present invention, in addition to the above, the second welding condition item is at least one of a flow rate of the shielding gas, a diameter of the filler wire, a diameter of the non-consumable electrode, and a tip angle of the non-consumable electrode. It is good also as a structure containing two.

With this configuration, even an operator who does not have knowledge about welding conditions can input information on a welding object that can be grasped into the welding machine while visually confirming the information. Thereby, since appropriate welding conditions are selected from the welding conditions memorize | stored in the memory | storage part 12, and it sets to a welding machine, the convenience becomes very high.

In the welding machine of the present invention, in addition to the above, the first welding condition items are welding method, welding current, welding voltage, preflow gas time, afterflow time, pulse presence / absence selection, pulse current, pulse frequency, It may be configured to include at least one of pulse width, crater presence / absence selection, initial current, crater current, up slope time, down slope time, AC waveform, AC frequency, EN ratio, AC / DC ratio, and AC / DC frequency.

This configuration makes it possible to easily set the welding conditions and enhance the convenience for the operator.

In addition to the above, the welding machine of the present invention may be configured such that the information on the welding object includes at least one of the material of the welding object, the plate thickness, the joint shape, and the welding posture.

With this configuration, it is possible to set the most suitable welding condition for the input information related to the welding object. Further, the most suitable welding conditions can be set by using what is obtained in advance by a welding experiment or the like and stored in the storage unit 12 in advance. Thereby, even an operator who does not have knowledge about welding conditions cannot know the information that is important for performing welding although it cannot be set in the welding machine. Therefore, when the worker takes action based on the information, better welding can be realized, and convenience can be further enhanced.

Moreover, in addition to the above, the welding machine of the present invention may be configured such that the first display unit 14 and the second display unit 15 are integrated into one display unit.

This configuration makes it possible to view a list of necessary information on a single display unit, further enhancing the convenience for the operator.

INDUSTRIAL APPLICABILITY The welding machine of the present invention can easily set the welding conditions and can improve the convenience of the operator, and is industrially used as a welding machine used when performing various weldings by changing the welding conditions. Useful.

DESCRIPTION OF SYMBOLS 1 Jog dial 2 Switch 3 LED display part 4 Operation part 5 Control part 6 Welding control part 7 Output drive circuit 8 Shield gas drive circuit 9 Start device drive circuit 10 Wire feed motor drive circuit 11 Setting part 12 Storage part 13 Control part 14 1st 1 display section 15 second display section 16 condition changing section 17 jog dial 18 condition switch (condition SW1,..., Condition SWn)

Claims

A welding machine that connects and uses a welding torch,
A setting section for setting information on the welding object;
Information on the welding object, a value of a first welding condition item that is a welding condition item that can be set for the welding machine, and a second welding condition that is a welding condition item that cannot be set for the welding machine A storage unit for storing a plurality of sets each associated with an item value;
A control unit that selects a value of the first welding condition item and a value of the second welding condition item from the storage unit based on information on the welding object set by the setting unit;
A first display unit for displaying a value of the first welding condition item extracted by the control unit;
A second display unit for displaying a value of the second welding condition item extracted by the control unit;
Welding machine equipped with.
The control unit selects a value of the second welding condition item and a second welding condition item from the storage unit based on information on the welding object set by the setting unit,
The welding machine according to claim 1, wherein values of the second welding condition item and the second welding condition item selected by the control unit are displayed on the second display unit.
A condition changing unit for changing the value of the first welding condition item displayed on the first display unit;
The display content currently displayed on the said 2nd display part will be erase | eliminated, if the value of the said 1st welding condition item currently displayed on the said 1st display part is changed. The welding machine as described in.
3. The method according to claim 1, wherein the second welding condition item includes at least one of a shield gas flow rate, a filler wire diameter, a non-consumable electrode diameter, and a tip angle of the non-consumable electrode. The welding machine as described in.
The first welding condition items are welding method, welding current, welding voltage, preflow gas time, afterflow time, pulse presence / absence selection, pulse current, pulse frequency, pulse width, crater presence / absence selection, initial current, crater current, 3. The welding machine according to claim 1, comprising at least one of an up slope time, a down slope time, an AC waveform, an AC frequency, an EN ratio, an AC / DC ratio, and an AC / DC frequency.
The welding machine according to claim 1, wherein the information related to the welding object includes at least one of a material, a plate thickness, a joint shape, and a welding posture of the welding object.
The welding machine according to claim 1, wherein the first display unit and the second display unit are integrated into a single display unit.