WO2018070117A1 - Chalumeau de traitement thermique, système de traitement thermique, dispositif source d'énergie simple, et procédé de confirmation - Google Patents

Chalumeau de traitement thermique, système de traitement thermique, dispositif source d'énergie simple, et procédé de confirmation Download PDF

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Publication number
WO2018070117A1
WO2018070117A1 PCT/JP2017/030442 JP2017030442W WO2018070117A1 WO 2018070117 A1 WO2018070117 A1 WO 2018070117A1 JP 2017030442 W JP2017030442 W JP 2017030442W WO 2018070117 A1 WO2018070117 A1 WO 2018070117A1
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WIPO (PCT)
Prior art keywords
unit
welding
torch
power
thermal processing
Prior art date
Application number
PCT/JP2017/030442
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English (en)
Japanese (ja)
Inventor
弘希 今町
一郎 梅澤
Original Assignee
株式会社ダイヘン
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 株式会社ダイヘン filed Critical 株式会社ダイヘン
Priority to CN201780053317.3A priority Critical patent/CN109641328B/zh
Publication of WO2018070117A1 publication Critical patent/WO2018070117A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K10/00—Welding or cutting by means of a plasma
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/095—Monitoring or automatic control of welding parameters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/24—Features related to electrodes
    • B23K9/28—Supporting devices for electrodes
    • B23K9/29—Supporting devices adapted for making use of shielding means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Definitions

  • the present disclosure relates to a thermal processing torch used in thermal processing, a thermal processing system, a simple power supply device, and a confirmation method.
  • Patent Document 1 describes an arc welding system that measures the welding time and issues a warning when the cumulative value exceeds the lifetime.
  • the arc welding system stores a cumulative value in a storage medium provided in the welding torch.
  • This disclosure is intended to provide a thermal processing system capable of easily confirming an actual working time of a worker, and a thermal processing torch used in the thermal processing system.
  • a thermal processing torch that performs thermal processing by being supplied with electric power from a power supply device.
  • the thermal processing torch includes a display unit, a usage detecting unit, a cumulative usage time measuring unit, and a display control unit.
  • the display unit has a display screen.
  • the use detection unit detects that the thermal processing torch is used.
  • the cumulative usage time timer counts the cumulative usage time by accumulating the time during which it is detected that the usage detector is used.
  • the display control unit displays the accumulated usage time on the display unit.
  • a thermal processing system includes a thermal processing torch provided by the first aspect of the present disclosure and the power supply device.
  • a simple power supply device is provided.
  • the simple power supply device is connected to the thermal processing torch provided by the first aspect of the present disclosure and supplies electric power to the thermal processing torch.
  • the simple power supply device does not supply electric power for thermal processing, but supplies electric power of 24 W or less for driving the display unit.
  • a method for checking the accumulated usage time includes a simplified power supply device that supplies the electric power for thermal processing to the thermal processing torch provided by the first aspect of the present disclosure without supplying electric power of 24 W or less for driving the display unit. Connecting to the display, displaying the accumulated use time on the display unit, and confirming the accumulated use time displayed on the display unit.
  • FIG. 1A to 1C are diagrams for explaining a welding system A1 according to the first embodiment.
  • FIG. 1A is a schematic diagram showing the overall configuration of the welding system A1.
  • FIG. 1B is a block diagram illustrating a functional configuration of the welding system A1.
  • FIG. 1C is a functional block diagram showing the internal configuration of the control unit 36.
  • the welding system A1 includes a welding power source device 1, a wire feeding device 2, a welding torch 3, power cables 41 and 42, a power transmission line 5, a signal line 8, a gas cylinder 6, and a gas pipe. 7 is provided.
  • the welding system A1 corresponds to an example of a “thermal processing system”
  • the welding torch 3 corresponds to an example of a “thermal processing torch”.
  • the welding power supply device 1 corresponds to an example of a “power supply device”.
  • One output terminal of the welding power source device 1 is connected to the welding torch 3 via the power cable 41.
  • the wire feeding device 2 sends the wire electrode to the welding torch 3 so that the tip of the wire electrode protrudes from the tip of the welding torch 3.
  • the power cable 41 and the wire electrode are electrically connected.
  • the other output terminal of the welding power source apparatus 1 is connected to the workpiece W via the power cable 42.
  • the welding power source device 1 generates an arc between the tip of the wire electrode protruding from the tip of the welding torch 3 and the workpiece W, and supplies electric power to the arc.
  • the welding system A1 welds the workpiece W with the heat of the arc.
  • the welding system A1 uses shield gas during welding.
  • the shield gas of the gas cylinder 6 is supplied to the tip of the welding torch 3 by a gas pipe 7 provided so as to pass through the welding power supply device 1 and the wire feeding device 2.
  • Electric power for example, DC 24 V
  • Electric power for example, DC 24 V
  • the welding power source device 1 and the wire feeding device 2 communicate with each other via a signal line 8.
  • the welding system A1 may circulate cooling water through the welding torch 3.
  • the welding power supply device 1 supplies electric power for arc welding to the welding torch 3.
  • the welding power supply device 1 converts the three-phase AC power input from the power system P into power suitable for arc welding and outputs the power. Further, the welding power source device 1 converts the three-phase AC power input from the power system P into DC power for driving the feeding motor of the wire feeding device 2 and the like through the power transmission line 5. Output to the wire feeder 2.
  • the welding power source device 1 is controlled to output electric power according to welding conditions and the like, and the welding conditions and the like are changed according to an operation of an operation unit (not shown). Further, the welding power source device 1 changes the welding conditions and the like according to a signal input from the welding torch 3 via the signal line 8.
  • the wire feeding device 2 feeds the wire electrode to the welding torch 3.
  • the wire electrode is guided to the tip of the welding torch 3 through the torch cable 39 and the inside of the liner provided inside the welding torch 3.
  • the wire feeding device 2 drives a feeding motor or the like with power supplied from the welding power source device 1 through the power transmission line 5.
  • the electric power is also supplied from the wire feeder 2 to the welding torch 3 via a power transmission line (not shown) provided in the torch cable 39.
  • the wire feeding device 2 communicates with the welding power source device 1 through the signal line 8.
  • the wire feeder 2 communicates with the welding torch 3 via a signal line (not shown) provided inside the torch cable 39.
  • the welding torch 3 and the welding power source device 1 communicate with each other through the wire feeding device 2.
  • the wire feeder 2 and the welding torch 3 are connected by a torch cable 39.
  • the torch cable 39 is a cable connected to the base end of the welding torch 3, and a power cable 41, a gas pipe 7, a liner, a power transmission line, and a signal line are arranged inside the cable.
  • the connector 21 is a connection terminal for connecting the welding torch 3 and the wire feeder 2.
  • the connector 21 is a concave connection terminal, and a convex torch plug (not shown) provided at one end of the torch cable 39 of the welding torch 3 is inserted, so that the welding torch 3 and the wire feeding device are inserted. 2 is connected.
  • the power cable 41, the gas pipe 7, the liner, the power transmission line 5 and the signal line 8 inside the wire feeder 2 are connected to the power cable 41 and the gas pipe 7 inside the torch cable 39, respectively. Connected to the liner, power transmission line and signal line.
  • the welding torch 3 welds the workpiece W with the welding power supplied from the welding power source device 1.
  • the welding torch 3 includes a communication unit 31, a display unit 32, an operation unit 33, a storage unit 34, a sensor unit 35, a control unit 36, and a power supply unit 40 as functional blocks.
  • the communication unit 31 is for communicating with the wire feeding device 2.
  • the communication unit 31 transmits a signal input from the control unit 36 to the wire feeder 2 via a signal line inside the torch cable 39. Further, the communication unit 31 receives a signal input from the wire feeding device 2 via a signal line inside the torch cable 39 and outputs the signal to the control unit 36.
  • a communication standard for example, CAN (Controller Area Network) is used.
  • the display unit 32 performs various displays, and includes a display 321 (described later) which is a liquid crystal display device, for example.
  • the display unit 32 is controlled by the control unit 36 and displays the welding conditions stored in the storage unit 34 and the measured welding time.
  • the operation unit 33 includes a plurality of operation means, and outputs the operation of each operation means by the operator to the control unit 36 as an operation signal.
  • the operation means there are a torch switch 331 and an operation button 332 as described later.
  • the operation unit 33 may be provided with other operation means.
  • the storage unit 34 stores each set value such as a welding condition and information such as a welding time.
  • the sensor unit 35 includes a plurality of sensors, and outputs a detection value of each sensor to the control unit 36.
  • the sensor unit 35 includes an acceleration sensor 351 and a current sensor 353 described later.
  • the sensor unit 35 may include other sensors.
  • the control unit 36 controls the welding torch 3 and is realized by, for example, a microcomputer.
  • the control unit 36 performs predetermined processing in accordance with the operation signal input from the operation unit 33.
  • the control part 36 performs a predetermined calculation based on the detection value input from the sensor part 35, and uses a calculation result for a process.
  • the control unit 36 calculates the tilt information of the welding torch 3 based on the detection value detected by the acceleration sensor 351, and uses it for the switching process to the menu screen.
  • the control part 36 performs the time measuring process of welding time based on the electric current which the current sensor 353 detected. The switching process to the menu screen and the welding time measuring process will be described later.
  • the control unit 36 controls communication by the communication unit 31, writing and reading of information in the storage unit 34, and display on the display unit 32. Specific control contents will be described later.
  • the power supply unit 40 supplies power to the display unit 32, the control unit 36, and the like.
  • the power supply unit 40 is supplied with power from the wire feeding device 2 through a power transmission line arranged inside the torch cable 39, and converts the voltage into a voltage suitable for each of the display unit 32 and the control unit 36. Output.
  • the power supply unit 40 is a capacitor for accumulating power supplied from the wire feeder 2, a diode for preventing a current from flowing backward from the capacitor to the power transmission line, a voltage output to the display unit 32, the control unit 36, and the like.
  • a DC / DC converter for adjustment is provided.
  • the capacitor is a large-capacity capacitor (such as an electric double layer capacitor or a lithium ion capacitor) so that power can be supplied to the display unit 32 and the control unit 36 even when no power is supplied from the wire feeder 2. It is said.
  • the capacitor stores power while power is supplied from the wire feeder 2, and supplies power by discharging the stored power when power is not supplied from the wire feeder 2. To do.
  • the capacitor corresponds to an example of “power storage device”.
  • power can be supplied to the display unit 32, the control unit 36, and the like for about 10 minutes. For example, in order to supply a current of 0.1 A at a voltage of 24 V for 10 minutes, the capacitance of the capacitor needs to be 5 F or more.
  • the configuration of the power supply unit 40 is not limited to the one described above.
  • a secondary battery such as a lithium ion battery may be used instead of the large capacity capacitor.
  • a primary battery such as a dry battery or a mercury battery may be provided, and when power is not supplied from the wire feeder 2, power may be supplied from the primary battery. That is, it is only necessary to have a configuration capable of supplying power for a certain period even when power is not supplied from the wire feeder 2.
  • FIGS. 2A and 2B are views showing an external appearance of an example of the welding torch 3.
  • 2A is a front view and FIG. 2B is a plan view.
  • the welding torch 3 includes a torch body 37, a handle 38, a torch switch 331, an operation button 332, a display 321, an acceleration sensor 351, a current sensor 353, and a torch cable 39.
  • the torch body 37 is a metal cylindrical member, in which a liner through which a welding cable is inserted, a power cable 41, and a gas pipe 7 are disposed.
  • a nozzle 371 is attached to the tip of the torch body 37.
  • the torch body 37 has a curved portion so that the operator can easily point the nozzle 371 toward the workpiece W.
  • the handle 38 is a part for the operator to hold, and is provided so as to hold the base end portion of the torch body 37. An operator holds the handle 38 and performs a welding operation.
  • the handle 38 is provided with a torch switch 331, an operation button 332, and a display 321.
  • a control board 381 is arranged inside the handle 38. On the control board 381, circuits composing the communication unit 31, the display unit 32, the operation unit 33, the storage unit 34, the sensor unit 35, and the control unit 36 are mounted.
  • the torch switch 331 is an operation means for accepting a start / stop operation of welding, and is arranged at a position where an operator who holds the handle 38 can easily perform a push operation with an index finger.
  • an operation signal is output to the control unit 36, and the operation signal is input to the welding power source device 1, whereby the welding power source device 1 outputs welding power.
  • the welding power source device 1 stops the output of the welding power by releasing the on operation. That is, welding is performed only while the torch switch 331 is pressed.
  • the torch switch 331 corresponds to an example of a “switch”.
  • the display 321 performs various displays, and is disposed on the opposite side of the handle 38 from the torch switch 331 so that an operator who holds the handle 38 and performs welding work can easily see the screen.
  • the display 321 corresponds to an example of a “display device”.
  • the operation button 332 is an operation means for performing an operation for switching a screen or changing various setting values, and is disposed between the grip portion of the handle 38 and the display 321 on the same side as the display 321 of the handle 38. Yes.
  • the operation button 332 includes an upper button 332a, a lower button 332b, a left button 332c, and a right button 332d.
  • a corresponding operation signal is output to the control unit 36, and the control unit 36 performs a corresponding process.
  • the left button 332c and the right button 332d are operation means for switching the screen displayed on the display 321.
  • the upper button 332a and the lower button 332b are operation means for changing the set value displayed on the display 321.
  • Each button 332a to 332d performs a function for another operation on a menu screen described later.
  • the display 321 is disposed on the same control board 381.
  • the display screen of the display 321 has a predetermined angle with respect to the control board 381 so that the operator can easily operate each operation button 332 while looking at the display screen of the display 321. ing.
  • the display 321 may be arranged so that the display screen is parallel to the substrate.
  • a microcomputer as the control unit 36, a memory as the storage unit 34, a communication module as the communication unit 31, and various electronic components constituting the power supply unit 40 are also mounted.
  • the acceleration sensor 351 is also mounted on the control board 381.
  • the acceleration sensor 351 is a three-axis acceleration sensor, and detects accelerations in the respective axial directions of three axes that are orthogonal to each other. Then, the detected acceleration detection value is output to the control unit 36.
  • the control unit 36 calculates inclination information indicating the attitude of the welding torch 3 based on the detected acceleration values.
  • the sensor unit 35 may include a gyro sensor instead of the acceleration sensor 351. In this case, the control unit 36 calculates tilt information from the acceleration around each axis detected by the gyro sensor.
  • the current sensor 353 detects a current flowing through the power cable 41 (not shown in FIGS. 2A and 2B) disposed inside the torch body 37.
  • the current sensor 353 is, for example, a Hall element type current sensor, and is disposed on the power cable 41.
  • the current sensor 353 is not limited as long as it can detect the current flowing through the power cable 41.
  • the detected current is converted into a digital signal and input to the control unit 36.
  • the controller 36 determines whether or not a welding current is flowing based on the input signal.
  • the control unit 36 determines that the welding current is flowing when the input signal indicates a predetermined current value (for example, 5 A) or more.
  • the appearance of the welding torch 3 is not limited to that described above.
  • the location and shape of the torch switch 331, the operation button 332, and the display 321 are not limited.
  • the case where the operation button 332 is four independent buttons is shown, but one cross button may be used. Also, the number of buttons is not limited.
  • the screen displayed on the display 321 includes a screen for setting welding conditions, a screen for displaying the welding time and usage rate, a setting screen for displaying, and the like. As shown in FIG. 3A, the order is set for each screen, and the screen displayed on the display 321 can be switched by pressing the left button 332c or the right button 332d. For example, when the right button 332d is pressed while the “welding current setting” screen is displayed, the screen is switched to the “feeding speed setting” screen, and the left button is displayed while the “use rate” display screen is displayed. When 332c is pressed, the screen is switched to the “welding time” display screen.
  • each screen for example, information such as a screen title, a setting value read from the storage unit 34, and a measured value is displayed.
  • Each setting value stored in the storage unit of the welding power source device 1 is read and stored in advance in the storage unit 34 via the communication unit 31. Further, the welding time and usage rate are stored in the storage unit 34 while being updated sequentially.
  • each displayed information may not be read from the memory
  • the set value can be changed by pressing the upper button 332a or the lower button 332b.
  • the control unit 36 changes the setting value of the welding current stored in the storage unit 34 according to the operation signal input from the operation unit 33, and displays the changed setting value on the display unit 32. Display. Further, the control unit 36 instructs the communication unit 31 to transmit the changed set value to the welding power source device 1.
  • the welding power source apparatus 1 that has received the changed setting value updates the stored setting value based on the received setting value.
  • the control unit 36 does not transmit the set value itself from the communication unit 31 to the welding power source device 1 but increases (or decreases) the set value based on the operation signal input from the operation unit 33. A signal may be transmitted.
  • a menu screen is provided so that a desired screen can be easily reached.
  • the menu screen (the screen shown on the left side in the figure) displays a plurality of options such as “welding condition setting” and “display information switching”.
  • a desired option can be selected by moving the cursor by pressing the upper button 332a or the lower button 332b and pressing the right button 332d. Then, a submenu screen corresponding to the selected option is displayed on the display 321 (screen shown in the center in the figure). Similarly, a desired screen can be displayed by selecting an option from the submenu screen.
  • 3B is an example, and the configuration of the menu screen and the like is not limited.
  • the submenu when the cursor is placed on an option on the menu screen, the submenu may be displayed as a pull-down or pop-up, or an icon may be displayed instead of a character-based option.
  • the screen switching shown in FIG. 3A only frequently used screens may be set. Further, whether the screen is sequentially switched or the screen is selected from the menu screen, whether or not the torch plug of the welding torch 3 is connected to the connector 21 of the wire feeder 2 (the power is supplied from the wire feeder 2). The screen to be displayed may be changed depending on whether or not it is supplied.
  • a screen that is not required such as a “welding current setting” screen or a “use rate” display screen
  • a predetermined screen for example, a “welding time” display screen
  • the menu screen is displayed when the welding torch 3 is in a predetermined posture (for example, a state close to vertical) and the left button 332c is pressed and held.
  • the attitude of the welding torch 3 is determined based on the detection value input from the acceleration sensor 351.
  • the display method of the menu screen is not limited to this.
  • the menu screen may be displayed by placing the welding torch 3 in a predetermined posture or by a predetermined button operation.
  • the welding time is measured in order to confirm the life of the welding torch 3 and to manage the labor of the worker. Specifically, the time during which welding current is flowing through the power cable 41 is counted to measure the time during which welding is being performed (welding time).
  • a current sensor 353 is disposed on the power cable 41. The current sensor 353 (sensor unit 35) outputs the detected current signal to the control unit 36. The control unit 36 determines whether or not the welding current is flowing based on the current signal input from the current sensor 353, and measures the time with a built-in timer while the welding current is flowing. The control unit 36 accumulates the measured welding time and calculates the accumulated time of the day. Also, an accumulated time obtained by accumulating the accumulated time of each day is calculated.
  • control unit 36 includes a use detecting unit 361, a time measuring unit 362, an accumulated usage time measuring unit 363, an integrating unit 364, and a display control unit 365 as functional blocks.
  • the use detection unit 361 detects whether or not the welding torch 3 is being used.
  • the usage detection unit 361 determines whether or not a welding current is flowing based on a current signal input from the current sensor 353 (sensor unit 35). Specifically, the usage detection unit 361 determines that the welding current is flowing when the input current signal indicates a predetermined current value (for example, 5 A) or more.
  • a predetermined current value for example, 5 A
  • the time measuring unit 362 measures the time during which the welding torch 3 is used (hereinafter referred to as “use time”).
  • the time measuring unit 362 measures time with a built-in timer while the use detecting unit 361 determines that the welding current is flowing (while determining that the welding torch 3 is used).
  • the accumulated usage time timer 363 accumulates the time counted by the timer 362.
  • the welding torch 3 is activated when the torch plug is inserted into the connector 21 of the wire feeder 2.
  • the accumulated usage time timer 363 accumulates the usage time measured by the timer 362 from when the welding torch 3 is activated. Therefore, the cumulative usage time timer 363 measures the usage time from the start of the welding torch 3 (hereinafter referred to as “cumulative usage time”).
  • the accumulated use time indicates the total welding time since the start of the welding torch 3.
  • the accumulated usage time timer 363 reads the accumulated usage time stored in the storage unit 34 and calculates the accumulated usage time by adding the usage time measured by the timer 362 to this.
  • the calculated accumulated usage time is stored in the storage unit 34. That is, the accumulated usage time is updated every time the time measuring unit 362 measures the usage time.
  • the accumulated usage time timer 363 may measure the accumulated usage time based on the detection result of the usage detector 361 without providing the timer 362. Specifically, the cumulative usage time timer 363 measures the cumulative usage time while the usage detector 361 detects use, and the cumulative usage time while the usage detector 361 does not detect usage. It is only necessary to stop timing.
  • the welding torch 3 stops operating when the torch plug is removed from the connector 21 of the wire feeder 2.
  • the accumulated usage time indicates the total usage time from the start to the present until the operation stops, and after the operation stops, indicates the total usage time during the current operation.
  • the worker inserts the torch plug into the connector 21 of the wire feeding device 2 at the start of the welding operation on the day and starts the welding torch 3.
  • the operator connects the torch plug to the connector of the wire feeding device 2. It removes from 21, and operation
  • the accumulating unit 364 accumulates the accumulated usage time counted by the accumulated usage time counting unit 363. When the operation of the welding torch 3 is finished, the integrating unit 364 calculates the total accumulated usage time by integrating the accumulated usage time measured by the cumulative usage time counting unit 363. The accumulating unit 364 reads the total accumulated usage time stored in the storage unit 34, and calculates the total accumulated usage time by adding the current accumulated usage time to this. The calculated total accumulated usage time is stored in the storage unit 34. That is, the total accumulated use time is updated every day after the operation of the welding torch 3 is finished. Therefore, during operation of the welding torch 3, the total accumulated usage time is an integrated value up to the previous day. It should be noted that the usage time may be added up to the total cumulative usage time every time it is used, instead of being integrated together after the operation is finished. In this case, even during operation of the welding torch 3, the total accumulated usage time becomes the latest integrated value.
  • the display control unit 365 controls screen display by the display unit 32.
  • the display control unit 365 generates a “welding time” display screen from the accumulated use time counted by the accumulated use time measuring unit 363 and the total accumulated use time accumulated by the accumulation unit 364, and outputs the display screen to the display unit 32. Display processing to be displayed on the display 321 is performed.
  • the display control unit 365 performs the display process when the “welding time” display screen is selected from the menu screen or when the display control unit 365 is switched to the “welding time” display screen by an operation by the operation means.
  • the accumulated usage time is displayed in the field of today's welding time, and the total accumulated usage time is displayed in the column of integrated value of welding time (see FIG. 3). While the welding torch 3 is in operation, the total welding time from the start to the present is displayed in the field for the welding time of today, and the integrated value for the welding time up to the previous day is displayed in the integrated value for welding time field. On the other hand, after the operation of the welding torch 3 is completed, the cumulative value of today's welding time is displayed in the column of today's welding time, and the integrated value of welding time up to today is displayed in the column of integrated value of welding time.
  • FIG. 4 is a flowchart for explaining the welding time counting process performed by the control unit 36. This process is started when the welding torch 3 is activated. In the present embodiment, when the torch plug of the welding torch 3 is inserted into the connector 21 of the wire feeding device 2 and power is supplied to the power supply unit 40, the welding torch 3 is activated.
  • accumulated usage time tx a variable tx indicating the accumulated usage time (hereinafter referred to as “accumulated usage time tx”) is initialized to “0” (S1). And it is discriminate
  • step S3 it is determined whether or not a welding current has been detected (S3). Specifically, the use detection unit 361 determines whether or not a welding current is flowing based on a current signal input from the current sensor 353. While the welding current is not detected (S3: NO), the determination in step S3 is repeated.
  • a variable t for measuring the welding time hereinafter referred to as “use time t” is initialized to “0” (S4), and the use time t Is started (S5).
  • step S6 it is determined whether or not the detection of the welding current is completed (S6). While the detection of the welding current is not completed (S6: NO), that is, while the welding current is detected, the determination in step S6 is repeated.
  • S6: YES the measurement of the usage time t is ended (S7), the measured usage time t is added to the cumulative usage time tx (S8), and the process returns to step S2. . Then, the processes in steps S2 to S8 are repeated.
  • step S2 when the operation of the welding torch 3 is completed (S2: NO), the accumulated use time tx is added to a variable ty indicating the total accumulated use time (hereinafter referred to as “total accumulated use time ty”). (S9), the welding time counting process ends.
  • the process shown in the flowchart of FIG. 4 is an example, and the welding time counting process performed by the control unit 36 is not limited to the above.
  • the measurement of the cumulative usage time tx may be started in step S5, and the timing of the cumulative usage time tx may be interrupted in step S7.
  • the usage time t is changed to the total cumulative usage time ty in step S8 after the timing is finished. You may make it add.
  • the time measurement of the total accumulated use time ty may be started in step S5, and the time measurement of the total accumulated use time ty may be interrupted in step S7.
  • the usage rate is calculated and stored in the storage unit 34 every time it is updated.
  • the usage rate is a percentage of the time during which the welding current flows within a predetermined time.
  • the control unit 36 calculates the usage rate from the usage time counted by the timing unit 362 and a predetermined time separately counted. In this case, the control unit 36 corresponds to an example of a “use rate calculation unit”. Note that the usage rate calculation method is not limited.
  • the display control unit 365 generates a “use rate” display screen based on the calculated use rate, outputs it to the display unit 32, and causes the display 321 to display it.
  • the display control unit 365 displays the “use rate” display screen when the “use rate” display screen is selected from the menu screen or when the “use rate” display screen is switched by an operation by the operation means. (See FIG. 3).
  • the “utilization” display screen can be displayed while the welding torch 3 is in operation.
  • FIG. 5A shows the storage state of the welding torch 3 after the work is completed.
  • Each worker is provided with a dedicated welding torch 3 and uses the welding torch 3 in the welding operation. After the work is completed, each worker stores the welding torch 3 in a predetermined storage location. Each worker is supposed to hang his / her welding torch 3 on the storage hanger 9 at a predetermined position.
  • the administrator takes out the welding torch 3 from each storage hanger 9, displays the “welding time” display screen, and confirms the welding time for today.
  • the method of displaying the “welding time” display screen may be selected by displaying a menu screen, or may be switched by operating the left button 332c or the right button 332d. If the welding torch 3 is disconnected from the wire feeder 2, first, if the "welding time” display screen is displayed, the "welding time” display screen is displayed without performing the above operation. Can be made.
  • the power supply unit 40 can supply power to the control unit 36 and the display unit 32 for about 10 minutes.
  • the power supply unit 40 supplies power to the control unit 36 and the display unit 32 and starts display on the display 321 when any of the operation means is operated.
  • the display on the display 321 may be started.
  • the administrator may confirm the welding time within 10 minutes after the display on the display 321 is started. The manager can judge that the operator may have been lazy when the confirmed welding time of today is too short compared with the working hours.
  • the “welding time” display screen is displayed by selecting on the menu screen or switching the screen, and the cumulative usage time (current day) The cumulative time of welding time) and the total cumulative usage time (accumulated time of welding time up to the previous day) can be confirmed. Furthermore, the current usage rate can be confirmed by displaying a “use rate” display screen during welding work or between welding operations.
  • the control unit 36 measures the usage time (welding time) of the welding torch 3 and calculates the cumulative usage time and the total cumulative usage time.
  • a display 321 is disposed on the handle 38 of the welding torch 3. Therefore, the operator can display and confirm the accumulated usage time and the total accumulated usage time on the display 321 at hand during welding work or between work. Therefore, it is not necessary to go to check the display device of the welding power source.
  • the administrator collects the welding torches 3 after the work is completed in one place and checks the accumulated usage time of each welding torch 3, it is not necessary to bother to connect each welding torch 3 to the display device.
  • the power supply unit 40 includes a large-capacity capacitor, it is possible to supply power to the display unit 32 and the control unit 36 even when power is not supplied from the wire feeder 2. Therefore, the welding torch 3 can be a single unit (even if no electric power is supplied from the outside), and can accept operations and display a screen. Therefore, it is not necessary to connect each welding torch 3 to the power supply device. Therefore, the administrator can easily confirm the accumulated use time (actual work time of the worker).
  • control unit 36 can calculate the usage rate and display it on the display 321. Therefore, since the operator can confirm the usage rate at hand, it is possible to easily adjust the usage rate such as interrupting the welding operation.
  • the welding time was measured based on the current signal input from the current sensor 353 (sensor part 35) was demonstrated, it is not restricted to this.
  • the detected current detection signal is transmitted to the welding torch 3, and the welding torch 3 determines the welding time based on the received current detection signal. You may make it time.
  • the current detection signal received by the communication unit 31 is input to the use detection unit 361 of the control unit 36, and the use detection unit 361 uses the time detection unit 362 based on the input current detection signal. It is only necessary to keep the time of the time. In this case, it is not necessary to provide the current sensor 353 in the welding torch 3.
  • the welding time is regarded as the usage time of the welding torch 3 and the time during which the welding current is flowing has been described, but the present invention is not limited thereto.
  • the worker may be working using the welding torch 3.
  • a state where the torch switch 331 is pressed to check the gas can be considered that the worker is working.
  • the time during which the torch switch 331 is pressed may be counted as the usage time of the welding torch 3.
  • an operation signal of the torch switch 331 input from the operation unit 33 is input to the use detection unit 361 of the control unit 36, and the use detection unit 361 determines a time counting unit based on the input operation signal. What is necessary is just to make 362 time-measure.
  • the welding torch 3 can display the accumulated usage time and the total accumulated usage time on the display 321 during welding work or between work.
  • the administrator collects the welding torches 3 after the work is completed in one place and checks the accumulated usage time of each welding torch 3, as shown in FIG. 5B, the display unit 32, the control unit 36, etc. It is only necessary to connect a simple power supply device 10 that only supplies power.
  • the power supply device 10 does not need to supply power for welding, and only needs to be able to supply power that can drive the display unit 32, the control unit 36, and the like. In the present embodiment, since these power consumptions are 1 to 12 W, 12 W output is possible. In addition, when the power consumption of the display unit 32 and the control unit 36 is larger, the maximum output may be increased, for example, 24 W may be output.
  • the power supply device 10 may supply power from a secondary battery or a dry battery, or may convert AC power from the power system into DC power and supply it.
  • the power supply device 10 corresponds to an example of a “simple power supply device”.
  • the present invention is not limited to this.
  • communication may be performed by superimposing a signal on the power cables 41 and 42 or the power transmission line 5.
  • the signal line 8 that connects the welding power supply device 1 and the wire feeding device 2 is required. do not do.
  • FIG. 6 illustrates another embodiment of the present disclosure.
  • the same or similar elements as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment.
  • FIG. 6 is a block diagram showing a functional configuration of the welding system A2 according to the second embodiment.
  • the welding system A2 shown in FIG. 6 is different from the welding system A1 according to the first embodiment in that the wire feeding device 2 is not provided.
  • the welding system A2 is a non-consumable electrode type welding system that does not use a wire electrode.
  • the welding power supply device 1 and the welding torch 3 are connected by a torch cable 39.
  • the welding power supply device 1 includes a connector 12 that is, for example, a concave connection terminal.
  • the connector 12 connects the welding torch 3 and the welding power source device 1 by inserting a convex torch plug (not shown) provided at one end of the torch cable 39 of the welding torch 3.
  • a convex torch plug (not shown) provided at one end of the torch cable 39 of the welding torch 3.
  • the power cable 41, the gas pipe 7, the power transmission line 5 and the signal line 8 inside the welding power source apparatus 1 are connected to the power cable 41, the gas pipe 7 and the power transmission inside the torch cable 39, respectively. Connected to lines and signal lines.
  • the welding torch welding system
  • the present invention is not limited to this.
  • the arc cutting torch arc cutting system
  • the arc gouging torch arc gouging system
  • the technology of the present disclosure can be applied to a heat processing torch (heat processing system) that performs heat processing such as gas welding or resistance welding without being limited to arc heat processing.
  • the thermal processing torch, the thermal processing system, the simple power supply device, and the confirmation method according to the present disclosure are not limited to the above-described embodiments.
  • the specific configuration of each part of the thermal processing torch, the thermal processing system, the simple power supply device, and the confirmation method according to the present disclosure can be changed in various ways.
  • a torch for thermal processing that performs thermal processing with power supplied from a power supply device, A display unit having a display screen; A use detection unit for detecting that the thermal processing torch is used; A cumulative usage time counting unit that counts a cumulative usage time by accumulating a time during which it is detected that the usage detection unit is used; A display control unit for displaying the accumulated usage time on the display unit; A torch for thermal processing.
  • Appendix 2 It further includes an operation unit having an operation button, The display control unit displays the accumulated usage time on the display unit based on an operation input from the operation unit.
  • the heat processing torch according to attachment 1.
  • the operation unit includes a switch for switching between a state where power is supplied and a state where power is not supplied.
  • the thermal processing torch according to appendix 2 wherein the usage detection unit detects that the usage is being used based on an operation of the switch.
  • [Appendix 4] A sensor unit for detecting that power is supplied from the power supply device; The use detection unit detects that the thermal processing torch is used based on a detection result by the sensor unit. The heat processing torch according to appendix 1 or 2.
  • Appendix 5 A communication unit that receives a signal indicating a power supply state of the power supply device; The use detection unit detects that the thermal processing torch is used based on the signal received by the communication unit. The heat processing torch according to appendix 1 or 2.
  • the cumulative usage time timer measures the cumulative usage time of one day, The thermal processing torch according to any one of appendices 1 to 5, further comprising an integration unit that integrates the accumulated use time and calculates a total accumulated use time.
  • the power storage device can store at least a time for displaying and confirming the accumulated usage time on the display unit, and power that can be supplied to the display unit, The heat processing torch according to appendix 7.
  • the power storage device is a large-capacity capacitor.
  • the display control unit displays the accumulated usage time on the display unit when power is not supplied to the power source unit from the outside.
  • the usage detector Based on the time during which it is detected that the usage detector is used, the usage detector further calculates a usage rate, The display control unit causes the display unit to display the usage rate.
  • Appendix 12 Welding with arc heat, The heat processing torch according to any one of appendices 1 to 11.
  • Appendix 15 Connecting the thermal processing torch according to any one of appendices 1 to 6 to a simple power supply device that does not supply electric power for thermal processing and supplies electric power of 24 W or less for driving the display unit; , Displaying the accumulated usage time on the display unit; Checking the accumulated usage time displayed on the display unit; A method for checking the accumulated usage time.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Power Engineering (AREA)
  • Arc Welding Control (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Arc Welding In General (AREA)

Abstract

Un aspect de la présente invention concerne un chalumeau de traitement thermique, le chalumeau recevant de l'énergie fournie par un dispositif source d'énergie et effectuant un traitement thermique. Le chalumeau de traitement thermique comprend une unité d'affichage, une unité de détection d'utilisation, une unité de mesure de durée d'utilisation cumulée, et une unité de commande d'affichage. L'unité d'affichage comporte un écran d'affichage. L'unité de détection d'utilisation détecte si le chalumeau de traitement thermique est utilisé. L'unité de mesure de durée d'utilisation cumulée mesure une durée d'utilisation cumulée qui est la durée cumulée correspondant à la détection d'utilisation du chalumeau par l'unité de détection d'utilisation. L'unité de commande d'affichage provoque l'affichage par l'unité d'affichage de la durée d'utilisation cumulée.
PCT/JP2017/030442 2016-10-14 2017-08-25 Chalumeau de traitement thermique, système de traitement thermique, dispositif source d'énergie simple, et procédé de confirmation WO2018070117A1 (fr)

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US11267069B2 (en) 2018-04-06 2022-03-08 The Esab Group Inc. Recognition of components for welding and cutting torches

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