WO2020003825A1 - エンジン駆動溶接機 - Google Patents
エンジン駆動溶接機 Download PDFInfo
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- WO2020003825A1 WO2020003825A1 PCT/JP2019/020484 JP2019020484W WO2020003825A1 WO 2020003825 A1 WO2020003825 A1 WO 2020003825A1 JP 2019020484 W JP2019020484 W JP 2019020484W WO 2020003825 A1 WO2020003825 A1 WO 2020003825A1
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- output
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- welding
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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
- B23K9/00—Arc welding or cutting
- B23K9/095—Monitoring or automatic control of welding parameters
- B23K9/0956—Monitoring or automatic control of welding parameters using sensing means, e.g. optical
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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
- B23K9/00—Arc welding or cutting
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
- B23K9/1006—Power supply
- B23K9/1043—Power supply characterised by the electric circuit
- B23K9/1068—Electric circuits for the supply of power to two or more arcs from a single source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
- F02B63/042—Rotating electric generators
Definitions
- the present invention relates to an engine-driven welding machine that outputs electric power generated by a power generator driven by an engine.
- Patent Literature 1 a two-person operation mode in which welding currents are individually output from two sets of welding output terminals and a one-person operation mode in which both are connected in parallel to output a welding current are provided by a switch.
- An engine driven welder that can be switched is disclosed.
- the switching between one person and two persons uses a manual switch, and has the following problems.
- the set current value with respect to the set position of the current regulator is different for one person and two persons. Therefore, it is necessary to readjust the current value by the current regulator every time the connection for one person / two persons is switched by the changeover switch.
- the present invention has been made in view of the above-described problems, and has a first output mode in which a large number of people can be automatically connected to a first output mode in accordance with a current value set in a current adjustment unit. It is an object of the present invention to provide an engine-driven welding machine configured to be switchable to a second output mode in which a large number of people can be connected.
- the engine-driven welding machine has a plurality of DC power supplies and a plurality of sets of welding output terminals corresponding to the respective DC power supplies.
- An engine-driven welding machine configured to receive a current setting of each of the DC power supplies by a user and output a setting signal based on the current setting; and a predetermined welding output terminal combining outputs of the plurality of DC power supplies.
- the controller automatically switches the output mode (first output mode, second output mode) according to the current setting set by the current setting means.
- a special operation for example, a switching operation of the switch according to Patent Document 1
- the current value is readjusted by the current regulator (corresponding to the current setting means). There is no need.
- a current measuring means for measuring an output current output from at least one of the plurality of sets of welding output terminals, wherein the controller determines that the output current is not flowing; Control.
- the concept includes a state in which a weak current is flowing as the output current, and the weak current is detected by the current measuring unit.
- a predetermined threshold value may be provided based on a product standard or the like, and when the threshold value falls below the threshold value, it may be determined that the output current is not flowing.
- the controller stops the output of the DC power supply that additionally supplies an output current to the first output terminal, and then controls the output.
- the switching means may be switched.
- the controller further includes a current measuring unit that measures an output current output from at least the predetermined welding output terminal of the plurality of sets of welding output terminals, wherein the controller sets the engine-driven welding machine to the first output mode.
- the setting of the first output mode may be maintained while the current is flowing to the current measuring means.
- the output switching means may be automatically switched when the mode switch is set to the automatic switching mode.
- the controller may cause the display screens of the display means corresponding to all the welding output terminals to be in a display state when setting the second output mode.
- the output mode can be automatically switched in accordance with the output current setting received by the current setting means, so that the user's operation can be reduced and the convenience can be improved.
- FIG. 7 is a diagram illustrating a setting example of an operation unit and a display example of a display unit.
- FIG. 7 is a diagram illustrating a setting example of an operation unit and a display example of a display unit.
- FIG. 7 is a diagram illustrating a setting example of an operation unit and a display example of a display unit.
- FIG. 7 is a diagram illustrating a setting example of an operation unit and a display example of a display unit.
- FIG. 7 is a diagram illustrating a setting example of an operation unit and a display example of a display unit.
- FIG. 7 is a diagram illustrating a setting example of an operation unit and a display example of a display unit.
- FIG. 7 is a diagram illustrating a setting example of an operation unit and a display example of a display unit. Schematic configuration diagram showing another example of an engine-driven welding machine
- the engine-driven welding machine has a power generating body wound with a plurality of power generating windings driven by the engine, rectifies AC power generated by each of the power generating windings, and performs welding corresponding to each. It has a function to output from the output terminal. That is, the engine-driven welding machine according to the present embodiment has a plurality of DC power supplies, and has an output integration function that collectively outputs the outputs of the plurality of DC power supplies from a predetermined welding output terminal. Further, the engine-driven welding machine has an individual output function for outputting an output current from each DC power supply to an individual welding output terminal. In addition, according to a setting value set on an output adjustment dial as a current setting unit to be described later, it is possible to automatically switch between an output integration setting for integrating outputs and an individual output setting for individually outputting. It is an engine drive welding machine having.
- FIG. 1 is a diagram illustrating a schematic configuration of an engine-driven welding machine 1 according to the present embodiment.
- the engine-driven welding machine 1 includes a plurality of DC power supplies 2 and 3 and a controller 4 having a function of controlling the operation of the engine welding machine 1.
- FIG. 1 shows an example in which two DC power supplies 2 and 3 are provided to facilitate understanding of the invention.
- the DC power supply on the upper side of the drawing is referred to as a first DC power supply 2
- the DC power supply on the lower side of the drawing is referred to as a second DC power supply 3.
- the first DC power supply 2 rectifies the AC power generated by the first power generation winding 12 a of the power generator driven by the engine 11 by the first rectifier 21, and converts the rectified DC power via the first distribution line 22. Output from the first welding output terminal 23.
- the second DC power supply 3 rectifies the AC power generated by the second power generation winding 12b of the power generator driven by the engine 11 by a second rectifier 31 as an output circuit, and converts the rectified DC power to a second power supply. It is configured to output from the second welding output terminal 33 via the electric wire 32.
- a first CT sensor CT1 that measures the output current of the first DC power supply 2 is attached to the first distribution line 22.
- the measurement result of the first CT sensor CT1 is sent to the controller 4.
- 71 (corresponding to output switching means) is provided.
- a second CT sensor CT2 as current measuring means for measuring the output current of the second DC power supply 3 is attached to the second distribution line 32. The measurement result of the second CT sensor CT2 is sent to the controller 4.
- the engine-driven welding machine 1 further includes an operation unit 5 for receiving a user's operation, and a display unit 6 for displaying output currents of the first and second DC power supplies 2 and 3.
- the operation unit 5 includes a mode changeover switch 51 and an output adjustment dial 52 as current setting means.
- the mode changeover switch 51 selects an output mode to be applied from “one-person mode”, which is an output mode for one person, “two-person mode”, which is an output mode for two people, and “automatic switching mode” ( Switch).
- the “single-person mode” as the first output mode is an output mode in which the outputs of the first and second DC power supplies 2 and 3 are collectively output from the first welding output terminal 23 as a predetermined welding output terminal.
- the relay 71 is switched to the first DC power supply 2 side (upper side in FIG. 1 [white circle side]).
- the “two-person mode” as the second output mode is an output mode in which the output current from the first and second DC power sources 2 and 3 is output to the individual welding output terminals 23 and 33, and the switching relay 71 is set to the second mode. This is a mode for switching to the DC power supply 2 side (the lower side in FIG. 1 [black circle side]).
- the “automatic switching mode” is a mode for automatically switching between the “single mode” and the “two mode”, and a specific switching method will be described in detail later.
- the output of the first DC power supply 2 and the output of the second DC power supply 3 may be combined and output from the second welding output terminal 33. can get.
- the output adjustment dial 52 includes a dial-type first output adjustment dial 52a for adjusting the output of the first DC power supply and a dial-type first output adjustment dial 52a for adjusting the output of the second DC power supply in the “two-person mode”. And a two-output adjustment dial 52b. In the “single mode”, the total output value of the first and second DC power supplies 2 and 3 can be adjusted by the first output adjustment dial 52a.
- the display unit 6 includes a first display unit 61 for displaying the output current of the first DC power supply 2 and a second display unit 62 for displaying the output current of the second DC power supply 3.
- first and second display units 61 and 62 the set values set by the output adjustment dial 52 of the operation unit 5 and the currents measured by the first and second CT sensors CT1 and CT2 (“the actual current in FIG. ]) Can be displayed.
- CT1 and CT2 are used as codes representing both the CT sensor itself and the measurement value measured by the CT sensor.
- the first and second display units 61 and 62 display a 7-segment display screen on which the output current is displayed and whether the numerical value displayed on the display screen is a “set value”. And a light emitting unit that indicates whether the current is “real current”.
- the light emitting unit indicating “set value” is called a setting lamp
- the light emitting unit indicating “actual current” is called an actual current lamp.
- the display unit 6 displays the total value CT0 (CT1 + CT2) of the output currents of the first DC power supply 2 and the second DC power supply 3 on the first display unit 61 in the “single-person mode”.
- the display unit 6 displays the measured value CT1 of the output current of the first DC power supply 2 on the first display unit 61 and the measured value CT2 of the output current of the second DC power supply 3 on the second display.
- Each is displayed in the unit 62.
- the actual current lamps of the corresponding display units 61 and 62 are turned on, and the currents measured by the corresponding CT sensors CT1 and CT2 are preferentially displayed. .
- the setting lamps of the display units 61 and 62 are turned on, and the set values set by the output adjustment dial 52 are displayed.
- the display method of the “actual current” and the “set value” is not limited to this, and other display forms such as alternately displaying the “actual current” and the “set value” when a current is flowing. You may.
- the engine-driven welding machine 1 includes a control board (not shown) on which a microcontroller or the like having a function as the controller 4 is mounted.
- the controller 4 reads the setting state of the mode changeover switch 51 and the setting value of the output adjustment dial 52, and controls the switching relay 71 according to the setting state. Further, the controller 4 controls the display of the first display section 61 based on the measured current value of the first CT sensor CT1. Similarly, the controller 4 controls the display on the second display unit 62 based on the measured current value of the second CT sensor CT2. The specific operation of the controller 4 will be described in detail in “Operation of engine driven welding machine” below.
- FIG. 2 is a flowchart illustrating an example of the operation of the engine-driven welding machine 1. It is assumed that the controller that controls the operation of the engine-driven welding machine 1 is the controller 4 unless otherwise specified.
- the welding operation device 8 is connected to both the first and second DC power supplies 2 and 3 as shown in FIG. Specifically, in each of the DC power supplies 2 and 3, the welding torch 81 is connected to the positive electrode of the welding output terminals 23 and 33, and the iron plate 83 to be welded is connected to the negative electrode. A welding rod 82 is attached to the tip of the welding torch 81.
- the equipment related to the welding work including the welding torch 81, the welding rod 82, and the iron plate 83 is collectively referred to as a welding work apparatus 8, and the welding work apparatus 8 connected to the first welding output terminal 23.
- a first welding operation device 8A
- the welding operation device 8 connected to the second welding output terminal 33 is referred to as a second welding operation device 8B.
- the predetermined reference value is 196A.
- the predetermined reference value is a value that can be arbitrarily set according to the output capability of the engine-driven welding machine 1 and the like.
- the predetermined reference value is set based on the maximum current value that each of the DC power supplies 2 and 3 can output. That is, the maximum current value that can be supplied from the first and second DC power supplies 2 and 3 to the individual welding output terminals 23 and 33 is set.
- the maximum current value that can be supplied by the first and second DC power supplies 2 and 3 is both 195 A for convenience of explanation.
- the maximum current value does not need to be 195 A, and the first and second DC power supplies 2 and 3 may have different maximum current values, and the same operation as described below is possible. The effect of is obtained.
- step S11 in FIG. 2 the controller 4 reads the setting state of the mode switch 51 and the setting value of the first output adjustment dial 52a. Then, the initial value of the "welding mode” is set according to the set value of the first output adjustment dial 52a.
- the “welding mode” includes an “automatic one-person mode” and an “automatic two-person mode”.
- the “automatic one-person mode” indicates that when the mode changeover switch 51 is in the “automatic changeover mode” and the mode is set to this mode, the switching relay 71 is set to the above-mentioned “single-person mode”. ing. For example, when the set value of the first output adjustment dial 52a is 196A or more, the controller 4 sets the initial value of the "welding mode" to the "automatic one-person mode”.
- the “automatic two-person mode” indicates that when the mode changeover switch 51 is in the “automatic changeover mode” and the mode is set to this mode, the switching relay 71 is set to the above-described “two-person mode”. I have. For example, when the set value of the first output adjustment dial 52a is less than 196A, the controller 4 sets the initial value of the "welding mode" to the "automatic two-person mode”.
- the initial value of the “welding mode” may be set before the determination of the “welding mode” in step S15 described later.
- step S12 the controller 4 determines whether or not the mode changeover switch 51 is set to “automatic changeover mode” (described as “automatic” in FIGS. 2 and 3).
- the mode changeover switch 51 is set to “manual one-person mode” (in FIG. 3, described as “for one person”) or “manual two-person mode” (in FIG. 3, described as “for two people”) (S12) NO)
- the flow proceeds to S13.
- step S13 the controller 4 fixes the output mode of the engine-driven welding machine 1 to an output mode corresponding to the setting of the mode switch 51.
- the controller 4 sets (fixes) the switching relay 71 to the “one-person mode”.
- the engine-driven welding machine 1 collectively outputs the output current of the first DC power supply 2 and the output current of the second DC power supply 3 from the first welding output terminal 23.
- the controller 4 sets (fixes) the switching relay 71 to the “two-person mode”.
- the engine-driven welding machine 1 outputs the output current of the first DC power supply 2 from the first welding output terminal 23 and outputs the output current of the second DC power supply 3 from the second welding output terminal 33.
- step S14 the operation after step S14 will be described in detail for each case.
- the mode changeover switch 51 is set to the “automatic changeover mode”
- the initial output adjustment dial 52a is set to 230A
- the second output adjustment dial 52b is set to the initial state.
- the value is 195A. That is, the initial value of the “welding mode” is “automatic one-person mode”.
- the display of the second display unit 62 is in a non-display state, that is, is off.
- step S14 whether or not the output current of the first DC power supply 2 is being supplied is determined based on the measurement value of the first CT sensor CT1.
- “YES” is determined in the step S14.
- step S15 it is determined whether the “welding mode” is set to the “automatic one-person mode” or the “automatic two-person mode”.
- the flow returns to step S12.
- Steps S12 to S15 are repeated while the current continues to flow through the first distribution line 22, that is, while the first welding operation device 8A is operating. That is, even if the set value of the first output adjustment dial 52a becomes 195A or less (for example, 190A), the "automatic one-person mode" is set, and the setting of the switching relay 71 remains “one-person mode”. . This can prevent frequent switching of the relay.
- the mode changeover switch 51 is set to the “automatic changeover mode”, and the initial output adjustment dial 52a is set to 190A and the second output adjustment dial 52b is set to the initial state. Assume that the value is 195A. That is, the initial value of the “welding mode” is “automatic two-person mode”.
- both the first welding operation device 8A and the second welding operation device 8B are operating, that is, both are supplied with current. Further, it is assumed that the set value of the first output adjustment dial 52a is changed from 190A to 230A after a predetermined time has elapsed.
- step S14 since a current is flowing through the first distribution line 22, “YES” is determined in the step S14. Since the initial value of the “welding mode” is set to the “automatic two-person mode”, the flow proceeds from step S15 to step S16.
- step S16 the controller 4 determines whether or not the output current of the second DC power supply 3 is supplied based on the measurement value of the second CT sensor CT2.
- “YES” since a current is flowing through the second distribution line 32, “YES” is obtained, and the flow proceeds to step S21.
- step S21 it is determined whether the set value of the first output adjustment dial 52a is equal to or greater than 196A. Before the elapse of the predetermined time, since the set value of the first output adjustment dial 52a is 190A, "NO" is determined in the step S21, and the flow returns to the step S12.
- the controller 4 keeps the numerical value of the first display section 61 at 195 A, keeps the actual current lamp lit, and blinks the setting lamp of the first display section 61 (FIG. See below arrow 3B). At this time, the second display unit 62 maintains the previous state.
- the switching relay 71 is switched during the operation of the welding operation device 8B connected to the second DC power supply 3, and the operation is adversely affected, or the switching relay 71 is overstressed and breaks down. Or the engine drive welding machine 1 itself can be prevented from breaking down. Further, it is possible to notify the user that the welding operation device 8B is in operation, so that the current according to the set value of the first output adjustment dial 52a is not output.
- step S22 When the process in step S22 ends, the flow returns to step S12.
- the mode changeover switch 51 is set to the “automatic changeover mode”
- the initial output adjustment dial 52a is set to 190A
- the second output adjustment dial 52b is set to the initial state.
- the value is 195A. That is, the initial value of the “welding mode” is “automatic two-person mode”.
- first welding operation device 8A is operating and supplied with electric current, while the second welding operation device 8B is stopped operating and is not supplied with electric current. Further, it is assumed that the set value of the first output adjustment dial 52a is changed from 190A to 230A after a predetermined time has elapsed.
- Steps S14 and S15 are the same as the above-mentioned "Operation Example 2", and thus description thereof is omitted here, and operations after Step S16 will be described.
- step S31 it is determined whether the set value of the first output adjustment dial 52a is equal to or greater than 196A. Before the elapse of the predetermined time, since the set value of the first output adjustment dial 52a is 190A, "NO" is determined in the step S31, and the flow returns to the step S12.
- step S32 controls the second rectifier 31 to be off (step S32), sets the switching relay 71 to the “single-person mode” (step S33), turns off the second display unit 62 (step S34), The "welding mode” is set to "automatic one-person mode” (step S35), and the flow returns to step S12.
- the mode changeover switch 51 is set to the “automatic changeover mode”
- the initial output adjustment dial 52a is set to 190A
- the second output adjustment dial 52b is set to the initial state.
- the value is 195A. That is, the initial value of the “welding mode” is “automatic two-person mode”.
- first welding operation device 8A has stopped operating and is not supplied with electric current, while the second welding operation device 8B is operating and is supplied with electric current. Further, it is assumed that the set value of the first output adjustment dial 52a is changed from 190A to 230A after a predetermined time has elapsed.
- step S41 it is determined whether the “welding mode” is set to the “automatic one-person mode” or the “automatic two-person mode”.
- the flow proceeds to step S42.
- Step S42 the controller 4 determines whether or not the output current of the second DC power supply 3 is supplied based on the measurement value of the second CT sensor CT2.
- “YES” since a current is flowing through the second distribution line 32, “YES” is obtained, and the flow proceeds to step S43.
- step S43 it is determined whether the set value of the first output adjustment dial 52a is equal to or greater than 196A. Before the elapse of the predetermined time, since the set value of the first output adjustment dial 52a is 190A, “NO” is determined in the step S43, and the flow returns to the step S12 in FIG. 2A.
- the set value of the first output adjustment dial 52a becomes 196A or more, so that “YES” is determined in the step S43, and the flow proceeds to the step S44.
- the controller 4 keeps the numerical value of the first display unit 61 at 195A and blinks the setting lamp of the first display unit 61.
- step S44 This prevents the switching relay 71 from switching during the operation of the welding operation device 8B connected to the second DC power supply 3 and adversely affecting the operation, or the switching relay 71 or the engine-driven welding machine 1 itself from breaking down. Can be prevented. Further, the user can be notified that the current according to the set value of the first output adjustment dial 52a is not output.
- the mode changeover switch 51 is set to the "automatic changeover mode”
- the initial output adjustment dial 52a is set to 190A
- the second output adjustment dial 52b is set to the initial state.
- the value is 195A. That is, the initial value of the “welding mode” is “automatic two-person mode”.
- both the first welding operation device 8A and the second welding operation device 8B are not operating, that is, both are not supplied with current. Further, it is assumed that the set value of the first output adjustment dial 52a is changed from 190A to 230A after a predetermined time has elapsed.
- Steps S14 and S41 are the same as the above-described "operation example 4", and thus description thereof is omitted here, and operations after step S42 will be described.
- step S51 it is determined whether the set value of the first output adjustment dial 52a is equal to or greater than 196A. Before the elapse of the predetermined time, since the set value of the first output adjustment dial 52a is 190A, “NO” is determined in the step S51, and the flow returns to the step S12 in FIG. 2A.
- Step S52 the controller 4 sets the switching relay 71 to the “single-person mode” (step S52), turns off the second display unit 62 (step S53), and sets the “welding mode” to the “automatic one-person mode”. (Step S54), the flow returns to Step S12 of FIG. 2A.
- the mode changeover switch 51 is set to the “automatic changeover mode”, and the initial output adjustment dial 52a is set to 230A and the second output adjustment dial 52b is set to the initial state. Assume that the value is 195A. That is, the initial value of the “welding mode” is “automatic one-person mode”.
- both the first welding operation device 8A and the second welding operation device 8B are not operating, that is, both are not supplied with current. Further, it is assumed that the set value of the first output adjustment dial 52a is changed from 230A to 180A after a predetermined time has elapsed.
- step S14 since no current flows through the first distribution line 22, “NO” is determined in the step S14, and the flow proceeds to the step S41 in FIG. 2B.
- step S41 since the initial value of the “welding mode” is set to the “automatic one-person mode”, the flow proceeds from step S41 to step S61 in FIG. 2C.
- step S61 it is determined whether the set value of the first output adjustment dial 52a is less than 196A. Before the elapse of the predetermined time, since the set value of the first output adjustment dial 52a is 230A, “NO” is determined in the step S61, and the flow returns to the step S12 in FIG. 2A.
- the set value of the first output adjustment dial 52a becomes less than 196A, so that "YES" is determined in the step S61, and the flow proceeds to the step S62.
- the controller 4 sets the switching relay 71 to the “two-person mode” (step S62).
- the controller 4 controls the output of the second rectifier 31. Specifically, the voltage applied to the second welding output terminal 33 is reduced. For example, the voltage applied to the second welding output terminal 33 is reduced from 70 V to 25 V or less, which is the allowable contact voltage. Further, at the same time when the switching relay 71 is set to the “two-person mode” and the current is detected by the second CT sensor CT2, the controller 4 sets the second DC power supply irrespective of the set value of the second output adjustment dial 52b. The control for reducing the output current of No. 3 to less than the predetermined value is executed. Thereby, arc generation can be prevented.
- the output current of the second DC power supply 3 is reduced to a value less than the predetermined value, if it is confirmed that the current has been interrupted for a predetermined time or more, the output current of the second DC power supply 3 is restored. Thereby, the automatic return function can be realized while ensuring safety.
- the controller 4 turns on the display of the output current on the second display unit 62 (step S64), and sets the “welding mode” to the “automatic two-person mode” (step S65). It returns to S12. Thus, the user can be notified that the output current can be supplied to the welding operation device 8B connected to the second welding output terminal 33.
- the output control unit reads the set value of the output adjustment dial 52, controls the switching relay 71 according to the set value, and sets the first output mode and the second output mode. I try to switch. That is, the switching operation from the “one-person mode” to the “two-person mode” and the switching operation from the “two-person mode” to the “single-person mode” can be performed without receiving the operation of the mode switching switch 51 by the user. It is done automatically. Further, the switching relay 71 is switched at a timing when no current is supplied from the second DC power supply 3, so that no excessive stress is applied to the switching relay 71.
- the method of switching the relay from the “two-person mode” to the “single-person mode” is not particularly limited.
- two operation examples are illustrated.
- the second rectifier 31 is operated to start the output of the second DC power supply 3.
- a predetermined reference value or more for example, 196A or more
- a predetermined time for example 0. 5 seconds
- the second rectifier 31 is operated to start the output of the second DC power supply 3.
- the switching relay 71 is switched, and then the second rectifier 31 is immediately turned on. There is a method of starting operation and starting the output of the second DC power supply 3. As a result, the current can be continuously increased.
- a predetermined reference value for example, 196A or more
- the first distribution line is provided with the first CT sensor CT1, but the first CT sensor CT1 may not be provided, and the same effects as those of the above embodiment can be obtained.
- the present invention is not limited to this. That is, the technology according to the present disclosure can be applied to a case where there are three or more DC power supplies, and similar effects can be obtained.
- FIG. 4 shows a configuration example of the engine-driven welding machine 1 when three DC power supplies are provided.
- FIG. 4 shows an example in which a third DC power supply 9 is added at the bottom of the drawing.
- the third DC power supply 9 rectifies the AC power generated by the third power generation winding 12c of the power generator driven by the engine 11 by the third rectifier 91, and converts the rectified DC power to a single-phase power. It is configured to output from the third welding output terminal 93 via the three distribution lines 92.
- a third display 63 for displaying the output current of the third DC power supply 9 is added to the display unit 6, and a dial-type third output for adjusting the output of the third DC power supply 9 is added to the operation unit 5.
- An adjustment dial 52c has been added.
- a switching relay for switching the output of the third DC power supply 9 to the third welding output terminal 93 or the first welding output terminal 23 under the control of the controller 4 in the third distribution line 92. 72 are provided. Further, a third CT sensor CT9 as current measuring means for measuring an output current of the third DC power supply 9 is attached to the third distribution line 92. The measurement result of the third CT sensor CT9 is sent to the controller 4.
- the operation of the engine-driven welding machine 1 is the same as that of the above-described embodiment, and a detailed description thereof will be omitted.
- the switching relay 72 provided on the third distribution line 92 may be controlled in the same manner as the control of the switching relay 71 provided on the second distribution line 32.
- the switching relay 71 and the switching relay 72 are switched to the first DC power supply 2 side (upper side in FIG. 4 [open circle side]).
- the first and second display units 61 and 62 have the display screen for displaying the output current.
- the present invention is not limited to this.
- the first and second display units 61 and 62 may be analog display units that indicate a current value with a pointer.
- the controller 4 causes the pointer of the second display unit 62 to 0 A regardless of the current measured by the second CT sensor CT2, thereby turning off the second display unit 62 as described above.
- the controller 4 causes the first and second display units 61 and 62 to be in a so-called display state in which the output current is displayed.
- the present invention is very useful because the output mode can be automatically switched according to the output current setting received by the current setting means.
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Abstract
Description
図1は、本実施形態に係るエンジン駆動溶接機1の概略構成を示す図である。
次に、エンジン駆動溶接機1の動作及び制御について、図1,図2を参照しつつ具体的に説明する。図2は、エンジン駆動溶接機1の動作の一例を示すフロー図である。なお、特に明記する場合を除いて、エンジン駆動溶接機1の動作の制御主体は、コントローラ4であるものとする。
本動作例では、図3Aに示すように、モード切替スイッチ51が「自動切替モード」に設定され、初期状態における、第1出力調整ダイヤル52aの設定値が230A、第2出力調整ダイヤル52bの設定値が195Aであるものとする。すなわち、「溶接モード」の初期値が「自動1人モード」であるものとする。「自動1人モード」の場合、第2表示部62の表示は、非表示状態になる、すなわち、消灯している。
本動作例では、図3Bに示すように、モード切替スイッチ51が「自動切替モード」に設定され、初期状態における、第1出力調整ダイヤル52aの設定値が190A、第2出力調整ダイヤル52bの設定値が195Aであるものとする。すなわち、「溶接モード」の初期値が「自動2人モード」であるものとする。
本動作例では、図3Cに示すように、モード切替スイッチ51が「自動切替モード」に設定され、初期状態における、第1出力調整ダイヤル52aの設定値が190A、第2出力調整ダイヤル52bの設定値が195Aであるものとする。すなわち、「溶接モード」の初期値が「自動2人モード」であるものとする。
本動作例では、図3Dに示すように、モード切替スイッチ51が「自動切替モード」に設定され、初期状態における、第1出力調整ダイヤル52aの設定値が190A、第2出力調整ダイヤル52bの設定値が195Aであるものとする。すなわち、「溶接モード」の初期値が「自動2人モード」であるものとする。
本動作例では、図3Eに示すように、モード切替スイッチ51が「自動切替モード」に設定され、初期状態における、第1出力調整ダイヤル52aの設定値が190A、第2出力調整ダイヤル52bの設定値が195Aであるものとする。すなわち、「溶接モード」の初期値が「自動2人モード」であるものとする。
本動作例では、図3Fに示すように、モード切替スイッチ51が「自動切替モード」に設定され、初期状態における、第1出力調整ダイヤル52aの設定値が230A、第2出力調整ダイヤル52bの設定値が195Aであるものとする。すなわち、「溶接モード」の初期値が「自動1人モード」であるものとする。
例えば、上記実施形態では、第1配電線には、第1CTセンサCT1が設けられているものとしたが、第1CTセンサCT1がなくてもよく、上記実施形態と同様の効果が得られる。
2 第1直流電源(直流電源)
3 第2直流電源(直流電源)
4 コントローラ
6 表示部(表示手段)
23 第1溶接出力端子(溶接出力端子、第1出力端子)
33 第2溶接出力端子(溶接出力端子)
51 モード切替スイッチ
52 出力調整ダイヤル(電流設定手段)
71 切替リレー(出力切替手段)
Claims (7)
- 複数の直流電源とそれぞれの直流電源に対応した複数組の溶接出力端子とを有するエンジン駆動溶接機であって、
使用者による前記各直流電源の電流設定を受け、該電流設定に基づく設定信号を出力する電流設定手段と、
前記複数の直流電源の出力をまとめて所定の前記溶接出力端子である第1出力端子から出力させる第1出力モードと、前記直流電源からの出力電流を個別の前記溶接出力端子から出力させる第2出力モードとを切り替える出力切替手段と、
前記電流設定手段から前記設定信号を受け、該設定信号にしたがって前記出力切替手段を制御して、前記電流設定値が所定の電流値以上の場合に前記第1出力モードに、前記電流設定値が所定の電流値未満の場合に前記第2出力モードに、自動的に切り替えるコントローラとを備えている
ことを特徴とするエンジン駆動溶接機。 - 請求項1において、
前記複数組の溶接出力端子のうちの少なくとも1組から出力される出力電流を測定する電流測定手段を備え、
前記コントローラは、前記出力電流が流れていないと判断した場合に、前記出力切替手段を制御する
ことを特徴とするエンジン駆動溶接機。 - 請求項2において、
前記コントローラは、前記第2出力モードから前記第1出力モードへの切り替えにおいて、前記第1出力端子に対して追加で出力電流を供給する前記直流電源の出力を停止させた後に、前記出力切替手段を切り替える
ことを特徴とするエンジン駆動溶接機。 - 請求項1において、
前記複数組の溶接出力端子のうちの少なくとも前記所定の溶接出力端子から出力される出力電流を測定する電流測定手段を備え、
前記コントローラは、前記エンジン駆動溶接機が前記第1出力モードに設定されている場合において、前記電流測定手段に電流が流れている間、前記第1出力モードの設定を維持する
ことを特徴とするエンジン駆動溶接機。 - 請求項1において、
前記第1出力モードに固定する第1出力固定モード、前記第2出力モードに固定する第2出力固定モード及び自動切替モードのうちいずれか1つを設定するモード切替スイッチを備え、
前記コントローラは、前記モード切替スイッチが前記自動切替モードに設定されている場合に、前記出力切替手段を自動的に切り替える
ことを特徴とするエンジン駆動溶接機。 - 請求項1において、
前記複数の溶接出力端子の出力電流を表示する表示手段とを有し、
前記コントローラは、前記第1出力モードにする場合に、前記所定の溶接出力端子以外の溶接出力端子に対応する前記表示手段を非表示状態またはゼロ表示状態にさせる
ことを特徴とするエンジン駆動溶接機。 - 請求項6において、
前記コントローラは、前記第2出力モードにする場合に、すべての前記溶接出力端子に対応する前記表示手段を表示状態にさせる
ことを特徴とするエンジン駆動溶接機。
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US16/474,783 US20210346974A1 (en) | 2018-06-28 | 2019-05-23 | Engine-driven welding machine |
AU2019294883A AU2019294883B2 (en) | 2018-06-28 | 2019-05-23 | Engine-driven welding machine |
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JP2018122957A JP7055710B2 (ja) | 2018-06-28 | 2018-06-28 | エンジン駆動溶接機 |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH10272564A (ja) * | 1997-03-28 | 1998-10-13 | Shindaiwa Kogyo Kk | エンジン駆動溶接機 |
JP2009195929A (ja) * | 2008-02-20 | 2009-09-03 | Denyo Co Ltd | エンジン駆動溶接機 |
JP2010131664A (ja) * | 2008-12-08 | 2010-06-17 | Denyo Co Ltd | エンジン駆動溶接機 |
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US6310320B1 (en) | 1999-01-07 | 2001-10-30 | Illinois Tool Works Inc. | Dual operator phase control engine driven welder |
JP3902719B2 (ja) | 2000-04-10 | 2007-04-11 | デンヨー株式会社 | エンジン駆動溶接用発電機の出力制御装置 |
AT411878B (de) * | 2000-10-17 | 2004-07-26 | Fronius Schweissmasch Prod | Verfahren zum steuern und/oder regeln eines schweissprozesses |
US10773327B2 (en) | 2010-06-17 | 2020-09-15 | Illinois Tool Works Inc. | System and method for limiting welding output and ancillary features |
US10144083B2 (en) * | 2013-02-22 | 2018-12-04 | Illinois Tool Works Inc. | Multi-operator engine driven welder system |
US20160207137A1 (en) * | 2015-01-21 | 2016-07-21 | Lincoln Global, Inc. | Method and Systems to Utilize Network Communications to Synchronize Welders and Avoid Interference |
US20170028501A1 (en) * | 2015-07-31 | 2017-02-02 | Illinois Tool Works Inc. | Welding System Having Multiple Weld Outputs |
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2019
- 2019-05-23 WO PCT/JP2019/020484 patent/WO2020003825A1/ja active Application Filing
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10272564A (ja) * | 1997-03-28 | 1998-10-13 | Shindaiwa Kogyo Kk | エンジン駆動溶接機 |
JP2009195929A (ja) * | 2008-02-20 | 2009-09-03 | Denyo Co Ltd | エンジン駆動溶接機 |
JP2010131664A (ja) * | 2008-12-08 | 2010-06-17 | Denyo Co Ltd | エンジン駆動溶接機 |
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US20210346974A1 (en) | 2021-11-11 |
JP2020001063A (ja) | 2020-01-09 |
AU2019294883A1 (en) | 2020-10-01 |
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