CN103221173B - Welding machine - Google Patents
Welding machine Download PDFInfo
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- CN103221173B CN103221173B CN201280003728.9A CN201280003728A CN103221173B CN 103221173 B CN103221173 B CN 103221173B CN 201280003728 A CN201280003728 A CN 201280003728A CN 103221173 B CN103221173 B CN 103221173B
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- bonding machine
- reducing device
- welding
- voltage reducing
- control part
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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
- B23K9/06—Arrangements or circuits for starting the arc, e.g. by generating ignition voltage, or for stabilising the arc
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
- Generation Of Surge Voltage And Current (AREA)
Abstract
According to the present invention, in a welding machine that enables manual welding, a voltage reducing device is activated by detecting the turning-on of power to the welding machine, rather than by turning on an activation checking switch for the voltage reducing device, irrespective of AC or DC systems. By thus implementing a checking operation for the voltage reducing device automatically upon starting of the welding machine, the present invention provides an inexpensive welding machine such that checking of the voltage reducing device can be implemented reliably before the welding machine is used.
Description
Technical field
The present invention relates to the hand welding Special alternating-current arc welding machine being built-in with voltage reducing device, the DC arc welder being built-in with hand welding function, this hand welds function and can export lower than non-load voltage and be equivalent to the voltage of the anti-shock voltage in ac arc welder.
Background technology
In the hand welding Special alternating-current arc welding machine not having voltage reducing device, if input commercial power, be then applied in the high non-load voltage of about 80V ~ 90V at outlet side.Under the state being applied in this non-load voltage, in welding stops, if operating personnel touch the electro-mechanical part of electrode carrier or welding rod etc. because of carelessness, then sometimes can adventurous current flowing in human body.
Therefore, in hand welding Special alternating-current arc welding machine, in order to prevent when operating personnel touch the electro-mechanical part of electrode carrier or welding rod etc. because of carelessness adventurous current flowing in human body, provide as follows.That is, voltage reducing device is set, when not carrying out welding operation cut off bonding machine main circuit and to outlet side apply below 30V margin of safety in low-voltage; Give obligation by law, carry out the current check of this voltage reducing device or make regular check on.
In the hand welding Special alternating-current arc welding machine of voltage reducing device internally-arranged type in the past or the hand welding Special alternating-current arc welding machine of voltage reducing device peripheral hardware type, be provided with following function.Namely, known following function is set: as current check, before use hand welding Special alternating-current arc welding machine, open the inspection switch of voltage reducing device, to confirm the low-voltage (such as with reference to patent document 1) whether normally applied to outlet side in welding stopped process in the margin of safety of below 30V.
But, on-the-spot in the welding job of reality, even if do not carry out the inspection before above-mentioned this use, hand also can be used to weld Special alternating-current arc welding machine.Further, cannot be confirmed whether to carry out inspection before use hand welding Special alternating-current arc welding machine.In addition, if slack to the current check operation before using, then hand can be used under the incomplete state of the action of voltage reducing device to weld Special alternating-current arc welding machine.Thus, also exist when operating personnel touch the electro-mechanical part of electrode carrier or welding rod etc. because of carelessness, flow through the situation of dangerous electric current at human body.
In addition, it is not hand welding Special alternating-current arc welding machine, but in the DC arc welder of hand welding special and hand welding dual-purpose, there is not the outfit of the voltage reducing device given by the law of labour safety and health or the obligation of inspection, do not specify legally.But, in order to improve security, also have the voltage reducing device possessing and apply the voltage lower than non-load voltage to outlet side.Wherein, in the DC arc welder of hand welding special or hand welding dual-purpose, due to not restriction, therefore the inspection switch (such as with reference to patent document 2) of voltage reducing device is not set.
But, in order to prevent from flowing through in human body when touching the electro-mechanical part of electrode carrier or welding rod etc. dangerous electric current, knownly carrying out the operation of the last stage of welding by hand welding Special alternating-current arc welding machine and automatically carrying out the inspection action (such as with reference to patent document 3) of voltage reducing device.
Fig. 4 and Fig. 5 is the figure having possessed the schematic configuration of the hand welding Special alternating-current arc welding machine of voltage reducing device represented in the past.Fig. 4 and Fig. 5 is illustrated respectively in schematic configuration during primary side and the primary side cut-out main circuit of bonding machine.Fig. 6 is the figure of the schematic configuration representing welding Special alternating-current arc welding machine of the hand in the past (hereinafter referred to as " AC welder ") also possessing voltage reducing device automatic checking device except voltage reducing device.
As shown in figs. 4 and 5, AC welder possesses: for the power switch 101 of input AC electric power; The alternating electromotive force of input is carried out to the transformer 104 of transformation; For keeping the electrode carrier 107 of welding rod; And perform the voltage reducing device 111 of anti-electric shock function.Voltage reducing device 111 possesses: the voltage reducing device for carrying out the inspection of voltage reducing device 111 checks switch 114, output control part 116, low-voltage supply unit 117, outputs state detection portion 123 and main circuit roof-cut resistence 124.At this, output control part 116 controls welding output.Low-voltage supply unit 117 exports the voltage of the safety lower than non-load voltage.The output state of the 123 pairs of AC welders in outputs state detection portion detects.Main circuit (mainly transformer 104) cuts off by main circuit roof-cut resistence 124.In addition, AC welder is that electric arc produces between the welding rod 109 kept by electrode carrier 107 and mother metal (base material) 108, welds.
About the voltage reducing device 111 formed as above, its action is described.Usually, in hand welding, utilize electrode carrier 107 to clamp welding rod 109, produce, to weld with the chien shih electric arc of mother metal 108 at this welding rod 109.In addition, be not weld by welding torch switch comes as CO2 bonding machine or TIG bonding machine.Thus, if voltage reducing device 111 not suitably action, then between electrode carrier 107 and mother metal 108, in welding stopped process (not producing the state of electric arc), the non-load voltage of about 80V ~ 90V can usually be applied.In this condition, if operating personnel touch the electro-mechanical part of electrode carrier 107 or welding rod 109 etc., then adventurous current flowing in human body sometimes.
Whether in order to prevent when touching the electro-mechanical part of this electrode carrier 107 or welding rod 109 etc. adventurous current flowing in human body, utilizing outputs state detection portion 123 to detect is during welding stops.And, if in welding stopping, then output control part 116 carries out following control: disconnected by main circuit roof-cut resistence 124, to cut off main circuit, applies the low-voltage in the margin of safety of below 30V from low-voltage supply unit 117.
At this, the Main Differences of Fig. 4 and Fig. 5 is: the position arranging the main circuit roof-cut resistence 124 for cutting off main circuit.Fig. 4 represents the example being provided with main circuit roof-cut resistence 124 in the primary side of transformer 104.Fig. 5 represents the example being provided with main circuit roof-cut resistence 124 in the primary side of transformer 104.
By the law of labour safety and health, obligation is imparted to this voltage reducing device 111, that is: before the same day is brought into use, carry out the inspection of operating state etc.And, voltage reducing device is set in voltage reducing device 111 and checks switch 114, with make easily to carry out voltage reducing device 111 start working before inspection.Check switch 114 by opening voltage reducing device, thus output control part 116 sends instruction, to switch output voltage to low-voltage supply unit 117, main circuit roof-cut resistence 124.And AC welder utilizes outputs state detection portion 123 to detect output, thus can carry out whether under normal action to the inspection of the low-voltage in the margin of safety of outlet side supply below 30V and non-load voltage etc.
But, possess in the AC welder of common voltage reducing device 111 above-mentioned, because operating personnel carry out the inspection action of voltage reducing device 111, even if therefore there is the problem of not carrying out inspection action mistakenly and also can carry out welding.
At this, the AC welder described in patent document 3 is described.
Fig. 6 is the figure of the schematic configuration of the AC welder represented in the past.The AC welder of Fig. 6 main part different with the AC welder of Fig. 5 is: possessed voltage reducing device preoperation inspection device 125.Voltage reducing device preoperation inspection device 125 possesses voltage reducing device preoperation inspection control part 126 and voltage reducing device preoperation inspection switch 127.
Voltage reducing device preoperation inspection device 125 is connected with voltage reducing device 111.Thus, if do not open voltage reducing device preoperation inspection switch 127 to make the action of voltage reducing device preoperation inspection control part 126, then welding operation cannot be carried out.Therefore, in order to carry out welding operation, just must make the action of voltage reducing device preoperation inspection control part 126, thus reliably can implement the inspection of voltage reducing device 111.
But, even if in the AC welder shown in Fig. 6, also there is the problem of opening voltage reducing device preoperation inspection switch 127 in order to make device 125 action of voltage reducing device preoperation inspection need.And then, also have and need voltage reducing device preoperation inspection device 125 in addition and the problem causing cost increase.
[at first technical literature]
[patent document]
The clear 59-209481 publication of [patent document 1] TOHKEMY
The clear 61-186169 publication of [patent document 2] TOHKEMY
[patent document 3] JP is real opens clear 52-115620 publication
Summary of the invention
In the present invention, with to exchange or the mode such as direct current has nothing to do, the power supply detecting bonding machine in the bonding machine that can realize hand welding has been switched on the inspection action that this situation automatically carries out voltage reducing device, is not to check that switch carries out the action checking of voltage reducing device by allowing operating personnel open.Thus, a kind of bonding machine reliably implementing the cheapness of the inspection of voltage reducing device before using bonding machine can be provided.
In order to solve above-mentioned problem, bonding machine of the present invention is a kind of bonding machine possessing voltage reducing device, and it possesses: for the power switch making above-mentioned bonding machine start; The start detection portion that the situation started above-mentioned bonding machine detects; With the testing result based on above-mentioned start detection portion, to the inspection operation control part that the inspection action of above-mentioned voltage reducing device controls.And bonding machine of the present invention, if start above-mentioned bonding machine by above-mentioned power switch and above-mentioned start detection portion detects the startup of above-mentioned bonding machine, then above-mentioned inspection operation control part automatically starts the inspection action of above-mentioned voltage reducing device.
Further, bonding machine of the present invention is a kind of bonding machine possessing voltage reducing device, it possesses inspection operation control part, output control part, the 1st transfer instruction unit, the 2nd transfer instruction unit and welding condition changing unit.At this, check that operation control part controls the inspection action of voltage reducing device.The output of output control part butt welding machine controls.1st transfer instruction unit instruction is transferred to the state can carrying out the change of welding condition.2nd transfer instruction unit instruction is transferred to from the state can carrying out the change of welding condition the state can not carrying out welding condition change.Welding condition changing unit welding conditions changes.And when for carrying out the state of the change of welding condition, output control part stops the output of bonding machine.And if be transferred to the state can not carrying out the change of welding condition from the state can carrying out the change of welding condition, then the inspection operation control part of bonding machine of the present invention automatically starts the inspection action of voltage reducing device.
As above, according to the present invention, the inspection action of voltage reducing device can automatically be carried out when bonding machine starts.Thus, even if do not arrange voltage reducing device in addition to check switch or voltage reducing device preoperation inspection device, also can with cheapness be formed in use bonding machine before reliably carry out the inspection of voltage reducing device.
Accompanying drawing explanation
Fig. 1 is the figure that can carry out the schematic configuration of the inverter control DC arc welder of hand welding (manual welding) represented in embodiment of the present invention 1.
Fig. 2 is the figure that can carry out the schematic configuration of the inverter control DC arc welder of hand welding represented in embodiment of the present invention 2.
Fig. 3 is the figure that can carry out the schematic configuration of the ac arc welder of hand welding represented in embodiment of the present invention 3.
Fig. 4 is the figure of the schematic configuration represented in hand welding Special alternating-current arc welding machine in the past when the primary side of bonding machine cuts off main circuit.
Fig. 5 is the figure of the schematic configuration represented in hand welding Special alternating-current arc welding machine in the past when the primary side of bonding machine cuts off main circuit.
Fig. 6 represents the figure welding in Special alternating-current arc welding machine schematic configuration when having possessed voltage reducing device preoperation inspection device at hand in the past.
Detailed description of the invention
Below, with reference to accompanying drawing, one embodiment of the present invention is described.In figures in the following, identical symbol is added to identical inscape, therefore sometimes omits the description.
(embodiment 1)
Below, Fig. 1 is used to be described embodiment of the present invention 1.Fig. 1 is the figure of the schematic configuration of the inverter control DC arc welder (hereinafter referred to as " direct current bonding machine ") that can carry out hand welding represented in present embodiment 1.
As shown in Figure 1, direct current bonding machine, via the power switch 1 for the input of commercial power being connected or disconnected, supplies commercial power to primary rectifier circuit 2.The commercial power being fed into primary rectifier circuit 2 is transformed to direct current power by primary rectifier circuit 2.Direct current power after conversion is transformed into alternating electromotive force by inverter circuit 3.Alternating electromotive force after conversion is transformed to the alternating electromotive force being suitable for electric arc processes by transformer 4.Alternating electromotive force after this conversion is transformed to direct current power by secondary commutation circuit 5, exports to electrode carrier 7 or mother metal 8 via reactor 6.Wherein, the output of direct current bonding machine is the testing result based on current detecting part 9, voltage detection department 10, by driving inverter circuit 3 to make the output current setting value becoming setting, carries out controlling.In addition, inverter circuit 3 is controlled by output control part 16 described later.
Voltage reducing device 11 is provided with in direct current bonding machine shown in Fig. 1.Voltage reducing device 11 possesses start detection portion 12, voltage reducing device checks switch 14, check operation control part 15 and output control part 16.At this, start detection portion 12 detects power switch 1 and is switched on and the situation that started of direct current bonding machine.Even if voltage reducing device checks that switch 14 is the switches that also can check voltage reducing device 11 after starting for the direct current bonding machine be arranged in operating portion 13.Check that output that operation control part 15 inputs start detection portion 12 and voltage reducing device check the output of switch 14, the instruction of the inspection action of output voltage reducing device 11.Output control part 16, based on the instruction of inspection action carrying out self-check operation control part 15, controls the low-voltage supply unit 17 for supplying the low-voltage in the margin of safety of below 30V and the inverter circuit 3 for applying non-load voltage.
In addition, except voltage reducing device checks switch 14, operating portion 13 also possesses therein: for changing the welding condition changing unit 20 of welding condition; Welding condition after display is set by welding condition changing unit 20/changed or the display part 21 of mistake; And the operation display control unit 22 of the control carrying out display part 21 etc. etc.
Further, in order to detect the output state of direct current bonding machine, to the Detection Information of output control part 16 also input electric cur-rent measure portion 9 and the Detection Information of voltage detection department 10.
Further, the so-called instruction checking action is the instruction representing following order: first by low-voltage supply unit 17 output voltage, confirm that whether low-voltage supply unit 17 is normal by detecting this voltage; Then drive inverter circuit 3, exporting non-load voltage between electrode carrier 7 and mother metal 8, confirming whether non-load voltage is normally exported by detecting this voltage.
In the direct current bonding machine formed as above, the inspection of the voltage reducing device 11 that can automatically carry out after connecting about the power supply at direct current bonding machine, is described its action.
When having been connected the power switch 1 of direct current bonding machine by operating personnel, start detection portion 12 has detected direct current bonding machine and has switched on power and the situation that started of direct current bonding machine, and its information is exported to inspection operation control part 15.Receive the inspection operation control part 15 of the information from start detection portion 12, export the instruction of the inspection action of the voltage reducing device 11 when direct current bonding machine starts to output control part 16.Output control part 16 is dependent on from checking the instruction that operation control part 15 accepts, under the state not driving inverter circuit 3, first drive the low-voltage supply unit 17 for supplying the low-voltage in the margin of safety of below 30V.Now, if large electric current as electric current during welding not detected in current detecting part 9 but the low-voltage in the margin of safety of below 30V detected in voltage detection department 10, be then judged as in output control part 16 that low-voltage supply unit 17 is normal.Otherwise, be judged as low-voltage supply unit 17 fault.Now, output control part 16 sends instruction to the operation display control unit 22 being arranged on operating portion 13, to display part 21 output error signal, display part 21 is shown and produces mistake.
Once low-voltage supply unit 17 normally action, then then output control part 16 drives inverter circuit 3, applies non-load voltage between electrode carrier 7 and mother metal 8.Now, if large electric current as electric current during welding not detected in current detecting part 9 but non-load voltage detected in voltage detection department 10, be then judged as the main circuit normally action of direct current bonding machine in output control part 16.Otherwise, the fault at least partially of the main circuit (mainly primary rectifier circuit 2, inverter circuit 3, transformer 4, secondary commutation circuit 5 and reactor 6) of direct current bonding machine.Now, output control part 16 sends instruction to the operation display control unit 22 being arranged at operating portion 13, to display part 21 output error signal, display part 21 is shown and produces mistake.
If low-voltage supply unit 17 normally terminates with the inspection in main circuit portion, then becoming the state that can start to weld, becoming the state to applying the low-voltage in the margin of safety of below 30V between electrode carrier 7 and mother metal 8.
At this, if welding rod 27 is clamped on electrode carrier 7 by operating personnel, forget electrode carrier 7 or welding rod 27 contact with mother metal 8 in state and the power switch 1 of bonding machine is connected, then owing to there being welding current to flow in output circuit, therefore be dangerous.
But, in present embodiment 1, the information of current detecting part 9 with voltage detection department 10 is input in output control part 16.Therefore, under the state that welding rod 27 or electrode carrier 7 contact with mother metal 8, even if the power switch of bonding machine 1 is switched on and starts the inspection action of voltage reducing device 11, the voltage that voltage detection department 10 detects also can become lower than below 30V.That is, the voltage that be applied with the low-voltage in the margin of safety of below 30V from low-voltage supply unit 17 when, voltage detection department 10 detects becomes lower than the low-voltage (such as large than 5V and below 30V) in the margin of safety of below 30V.Thus (such as below 5V), in can detecting that welding rod 27 or electrode carrier 7 contact with mother metal 8.And output control part 16 sends instruction to the operation display control unit 22 being located at operating portion 13, to display part 21 output error signal, display part 21 is shown and produces mistake.Further, carry out making welding to export the control stopped due to output control part 16, therefore can not welding current be flow through, dangerous state can not be become.
That is, the bonding machine of present embodiment 1 is the bonding machine having possessed voltage reducing device 11, wherein possesses power switch 1, start detection portion 12 and checks operation control part 15.At this, power switch 1 is the switch for making bonding machine start.The situation that start detection portion 12 butt welding machine has started detects.Check that operation control part 15 controls the inspection action of voltage reducing device 11 based on the testing result in start detection portion 12.And the welding mechanism of present embodiment 1 becomes: when starting bonding machine by power switch 1 and the startup of bonding machine being detected by start detection portion 12, check that operation control part 15 automatically starts the inspection action of voltage reducing device 11.
According to this formation, by arranging the start detection portion 12 detected the startup of direct current bonding machine, thus automatically can carry out the inspection action of voltage reducing device 11 when having connected the power supply of direct current bonding machine.Therefore, open voltage reducing device like that without the need to bonding machine in the past as shown in Figure 6 and check switch 114, also without the need to arranging voltage reducing device preoperation inspection device 125 in addition.Thus, the formation by cheapness just can use the inspection reliably carrying out voltage reducing device 11 before bonding machine.
In addition, this start detection portion 12 can according to whether commercial power being accessed the startup that direct current bonding machine differentiates direct current bonding machine.Thus, without the need to other complex appts, can realize simply and the direct current bonding machine of the formation of cheapness.
Have again, by taking the formation of the output state to voltage reducing device 11 input direct-current bonding machine, thus in the inspection action of voltage reducing device 11, welding rod 27 or electrode carrier 7 and the contiguous state of mother metal 8 can be detected, also can realize under contact condition, do not carry out welding output.Thus, can further improve processing safety during welding operation.
(embodiment 2)
Fig. 2 is used to be described embodiment of the present invention 2.Fig. 2 is the figure that can carry out the schematic configuration of the direct current bonding machine of hand welding represented in present embodiment 2.
The different main part of the direct current bonding machine of present embodiment 2 and the direct current bonding machine of embodiment 1 is: changing welding condition and automatically carry out the inspection action of voltage reducing device 11 when determining change.In addition, the direct current bonding machine of present embodiment 2, in the same manner as embodiment 1, automatically carries out the inspection action of voltage reducing device 11 when switching on power switch 1 and starting direct current bonding machine.
Further, in fig. 2, be from the different place of Fig. 1: in operating portion 13, arrange the 1st shift instruction unit 18 and the 2nd and shift instruction unit 19, input to operation display control unit 22 information that the 1st transfer instruction unit 18 and the 2nd shifts instruction unit 19.At this, the 1st transfer instruction unit 18 is the instruction units for being transferred to the state that can change welding condition.2nd transfer instruction unit 19 is the instruction units for breaking away from the state that can change welding condition.
In the direct current bonding machine formed as above, automatically carry out the inspection of voltage reducing device 11 when the welding condition for direct current bonding machine changes and determines, its action is described.
In the startup of direct current bonding machine, if operation the 1st is shifted instruction unit 18 and is transferred to welding condition change state, then send the signal representing and be transferred to welding condition change state from operation display control unit 22 to output control part 16.Receive the output control part 16 of signal from operation display control unit 22, control inverter circuit 3 and low-voltage supply unit 17, stop the output of the low-voltage in the margin of safety of non-load voltage and below 30V.By this control, the change of welding condition can be carried out safely.
And, after having carried out the change of welding condition in use welding condition changing unit 20, export by the 2nd transfer instruction unit 19 instruction broken away from from the change state of welding condition.Thus, send expression from operation display control unit 22 to inspection operation control part 15 and be transferred to the signal that can not carry out the state of the change of welding condition.And the inspection operation control part 15 that have received this signal sends instruction to output control part 16, the inspection action of voltage reducing device 11 is started.
As above, present embodiment 2 bonding machine relative to the bonding machine of embodiment 1 formation and be provided with the 1st transfer instruction unit (first transfer instruction unit) the 18 and the 2nd transfer instruction unit 19 further.And the bonding machine of present embodiment 2, when for carrying out the state of the change of welding condition, output control part 16 stops the output of bonding machine.And the welding mechanism of present embodiment 2 becomes: be transferred to from the state can carrying out the change of welding condition can not carry out the state of the change of welding condition time, check that operation control part 15 automatically starts the inspection action of voltage reducing device 11.
According to this formation, even if after changing welding condition and determine changed content, the action checking of voltage reducing device 11 also automatically can be carried out.Further, without the need to arranging voltage reducing device preoperation inspection device 125 in addition.Thus, before using bonding machine, the inspection of voltage reducing device 11 just reliably can be carried out with the formation of cheapness.Wherein, due to the inspection action of voltage reducing device 11 and embodiment 1 same, description will be omitted.
Further, in the inspection action of voltage reducing device 11, the control that output when becoming the state that welding rod 27 or electrode carrier 7 contact with mother metal 8 stops is also same with embodiment 1, therefore omits the description.Thus, when making welding rod 27 or electrode carrier 7 carry out contacting with mother metal 8 in the change of welding condition absent-mindedly, owing to the rear output stopped to the main circuit of direct current bonding machine of mistake being detected, therefore be safe.Thus, can further improve processing safety during welding operation.
(embodiment 3)
Fig. 3 is used to be described embodiment of the present invention 3.Fig. 3 is the figure of the schematic configuration of the ac arc welder (hereinafter referred to as " AC welder ") that can carry out hand welding represented in present embodiment 3.
The bonding machine of present embodiment 3 and embodiment 1 or the different main part of embodiment 2 are: be not direct current bonding machine but AC welder.Further, in figure 3, the main place different from Fig. 1 or Fig. 2 is: do not possess primary rectifier circuit 2, inverter circuit 3, secondary commutation circuit 5, reactor 6 and current detecting part 9; Possesses main circuit roof-cut resistence 24.This main circuit roof-cut resistence 24 is arranged in voltage reducing device 11 to can easily carry out checking before voltage reducing device 11 is started working.That is, whether in order to prevent when by mistake touching the electro-mechanical part of electrode carrier 7 or welding rod 27 etc. adventurous current flowing in human body, utilizing outputs state detection portion 23 to detect is during welding stops.And, if in welding stopping, then output control part 16 controls, and to disconnect main circuit roof-cut resistence 24 and to cut off main circuit, applies the low-voltage in the margin of safety of below 30V from low-voltage supply unit 17.Thus, can further improve processing safety during welding operation.
In addition, in the AC welder of present embodiment 3, automatically carry out the inspection action this point of voltage reducing device 11 about AC welder when starting, owing to being same with embodiment 1, description will be omitted.
Further, in the AC welder of present embodiment 3, about the inspection action this point of automatically carrying out voltage reducing device 11 when the change determining welding condition, owing to being same with embodiment 2, description will be omitted.
That is, the bonding machine of present embodiment 3 is the bonding machines having possessed voltage reducing device 11, and it possesses inspection operation control part 15, output control part 16, the 1st transfer instruction unit 18, the 2nd transfer instruction unit 19 and welding condition changing unit 20.At this, check that operation control part 15 controls the inspection action of voltage reducing device 11.Output control part 16 controls the output of bonding machine.1st transfer instruction unit 18 instruction is transferred to the state can carrying out the change of welding condition.2nd transfer instruction unit 19 indicates and is transferred to from the state can carrying out the change of welding condition the state can not carrying out the change of welding condition.Welding condition changing unit 20 carries out for welding conditions the changing unit that changes.And, be that when can carry out the state of the change of welding condition, output control part 16 stops the output of bonding machine at the bonding machine of present embodiment 3.And the welding mechanism of present embodiment 3 becomes: be transferred to from the state can carrying out the change of welding condition can not carry out the state of the change of welding condition time, check that operation control part 15 automatically starts the inspection action of voltage reducing device 11.
According to this formation, even if after changing welding condition and determine changed content, the action checking of voltage reducing device 11 also automatically can be carried out.Further, without the need to arranging voltage reducing device preoperation inspection device 125 in addition.Thus, before using bonding machine, the inspection of voltage reducing device 11 just reliably can be carried out with the formation of cheapness.
Further, be configured in the AC welder of present embodiment 3: by outputs state detection portion 23, the voltage that welding exports is inputted to output control part 16.Thus, in the same manner as embodiment 1 or embodiment 2, when becoming the state that welding rod 27 or electrode carrier 7 have contacted with mother metal 8, can stop exporting.Thus, can further improve processing safety during welding operation.
Also have, as the detection of the output state in outputs state detection portion 23, also can adopt method for detecting phases, make use of in the method for current detecting part 9, voltage detection department 10 or load time outlet side voltage-phase to have the phenomenon of delay relative to input side.
-industrial applicibility-
The present invention without the need to open voltage reducing device inspection switch and also without the need to arranging voltage reducing device preoperation inspection device in addition, just automatically can carry out the action checking of voltage reducing device when the power supply connecting bonding machine.And then, even if the present invention also automatically can carry out the action checking of voltage reducing device after changing welding condition and determine changed content.Thus, just can realize the bonding machine of safety with the formation of cheapness, be industrially useful as the bonding machine possessing voltage reducing device.
-symbol description-
1 power switch
2 primary rectifier circuit
3 inverter circuits
4 transformers
5 secondary commutation circuit
6 reactors
7 electrode carriers
8 mother metals
9 current detecting parts
10 voltage detection departments
11 voltage reducing devices
12 start detection portions
13 operating portions
14 voltage reducing devices check switch
15 check operation control part
16 output control parts
17 low-voltage supply units
18 the 1st transfer instruction units
19 the 2nd transfer instruction units
20 welding condition changing units
21 display parts
22 operation display control units
23 outputs state detection portions
24 main circuit roof-cut resistence
27 welding rods
Claims (4)
1. a bonding machine, it possesses voltage reducing device, and this bonding machine possesses:
For the power switch making described bonding machine start;
The start detection portion that the situation started described bonding machine detects;
Based on the testing result in described start detection portion, to the inspection operation control part that the inspection action of described voltage reducing device controls;
To the output control part that the output of described bonding machine controls;
Instruction is transferred to the 1st transfer instruction unit can carrying out the state of the change of welding condition;
Indicate and be transferred to from the state can carrying out the change of welding condition the 2nd transfer instruction unit can not carrying out the state of the change of welding condition; With
For changing the welding condition changing unit of welding condition,
If start described bonding machine by described power switch and described start detection portion detects the startup of described bonding machine, then described inspection operation control part automatically starts the inspection action of described voltage reducing device,
When for the state of the change of welding condition can be carried out, described output control part stops the output of described bonding machine, if be transferred to the state can not carrying out the change of welding condition from the state can carrying out the change of welding condition, then described inspection operation control part automatically starts the inspection action of described voltage reducing device.
2. a bonding machine, it possesses voltage reducing device,
This bonding machine possesses:
To the inspection operation control part that the inspection action of described voltage reducing device controls;
To the output control part that the output of described bonding machine controls;
Instruction is transferred to the 1st transfer instruction unit can carrying out the state of the change of welding condition;
Indicate and be transferred to from the state can carrying out the change of welding condition the 2nd transfer instruction unit can not carrying out the state of the change of welding condition; With
For changing the welding condition changing unit of welding condition,
When for the state of the change of welding condition can be carried out, described output control part stops the output of described bonding machine, if be transferred to the state can not carrying out the change of welding condition from the state can carrying out the change of welding condition, then described inspection operation control part automatically starts the inspection action of described voltage reducing device.
3. bonding machine according to claim 1 and 2, wherein,
This bonding machine has the function detected the contact of welding electrode and welding object thing,
If detect in the inspection action of described voltage reducing device, described welding electrode contacts with described welding object thing, then stop the output of described bonding machine.
4. a bonding machine, it possesses voltage reducing device, and this bonding machine possesses:
For the power switch making described bonding machine start;
The start detection portion that the situation started described bonding machine detects; With
Based on the testing result in described start detection portion, to the inspection operation control part that the inspection action of described voltage reducing device controls,
If start described bonding machine by described power switch and described start detection portion detects the startup of described bonding machine, then described inspection operation control part automatically starts the inspection action of described voltage reducing device,
This bonding machine has the function detected the contact of welding electrode and welding object thing,
If detect in the inspection action of described voltage reducing device, described welding electrode contacts with described welding object thing, then stop the output of described bonding machine.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-206936 | 2011-09-22 | ||
| JP2011206936 | 2011-09-22 | ||
| PCT/JP2012/004444 WO2013042295A1 (en) | 2011-09-22 | 2012-07-10 | Welding machine |
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| Publication Number | Publication Date |
|---|---|
| CN103221173A CN103221173A (en) | 2013-07-24 |
| CN103221173B true CN103221173B (en) | 2015-03-11 |
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| CN201280003728.9A Active CN103221173B (en) | 2011-09-22 | 2012-07-10 | Welding machine |
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| Country | Link |
|---|---|
| JP (1) | JP5598599B2 (en) |
| CN (1) | CN103221173B (en) |
| WO (1) | WO2013042295A1 (en) |
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| JP6424026B2 (en) * | 2014-07-01 | 2018-11-14 | 株式会社ダイヘン | Welding system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201735934U (en) * | 2010-09-15 | 2011-02-09 | 深圳市华意隆实业发展有限公司 | Welding machine with low no-load output voltage |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58107267U (en) * | 1982-01-11 | 1983-07-21 | 日立造船株式会社 | Operation inspection device for automatic electric shock prevention device |
| JPS594973A (en) * | 1982-06-30 | 1984-01-11 | Daihen Corp | Welding machine controlling device |
| JP2876700B2 (en) * | 1990-03-30 | 1999-03-31 | 株式会社ダイヘン | Plasma arc processing equipment |
| JP2001293573A (en) * | 2000-04-11 | 2001-10-23 | Tempearl Ind Co Ltd | Starting resistance measuring unit |
| JP2007210007A (en) * | 2006-02-09 | 2007-08-23 | Daihen Corp | Lock control process of welding power supply |
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2012
- 2012-07-10 CN CN201280003728.9A patent/CN103221173B/en active Active
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|---|---|---|---|---|
| CN201735934U (en) * | 2010-09-15 | 2011-02-09 | 深圳市华意隆实业发展有限公司 | Welding machine with low no-load output voltage |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5598599B2 (en) | 2014-10-01 |
| CN103221173A (en) | 2013-07-24 |
| JPWO2013042295A1 (en) | 2015-03-26 |
| WO2013042295A1 (en) | 2013-03-28 |
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