CN201132248Y - High energy-saving NC-electric welding machine - Google Patents
High energy-saving NC-electric welding machine Download PDFInfo
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- CN201132248Y CN201132248Y CNU2007203065889U CN200720306588U CN201132248Y CN 201132248 Y CN201132248 Y CN 201132248Y CN U2007203065889 U CNU2007203065889 U CN U2007203065889U CN 200720306588 U CN200720306588 U CN 200720306588U CN 201132248 Y CN201132248 Y CN 201132248Y
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- welding machine
- balance cock
- electric welding
- circuit
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Abstract
The utility model relates to a high energy-saving numerically controlled welding machine which comprises a computer main controlling circuit, an electromagnetic energy storing device, a welding output device and a machine box for containing the complete machine, wherein, the electromagnetic energy storing device comprises a storage capacitor C1 which is directly connected in parallel with a power supply source V1; both ends of the storage capacitor C1 are respectively connected with one end of a balance cock K1 and one end of a balance cock K2, the other end of the balance cock K1 and the other end of the balance cock K2 are respectively connected with two ends of a storage inductance L1; the electromagnetic energy storing device also comprises a coupling inductance L2 which is coupled with the storage inductance L1 through an iron core; both ends of the coupling inductance L2 are connected with the voltage input terminal of the welding output device; the balance cocks K1 and K2 are connected with and controlled by the computer main controlling circuit. The high energy-saving numerically controlled welding machine effectively reduces open circuit loss, improves the loaded figure-of-merit, has less pollution to harmonic waves of electricity grid, saves energy and protects environment.
Description
Technical field
The utility model relates to electric welding machine, especially, relates to a kind of high energy-conservation numerical control electric welding machine.
Background technology
A.C. welder still is that contravariant arc welding machine all exists the inoperative energy consumption big, during work electrical network is impacted serious problem.For example no matter the transformer of arc-welding electric welding machine is moving-iron type, reason formula or tapped, itself all is high-leakage impedance transformer, and induction reactance is very big, and power factor generally has only about 0.5, is 0.1～0.2 when unloaded, and reactive loss is very big.Arc welding transformer adopts chopping mode, and general cyclic duration factor is 60%, and idle time is long, because of arc welding transformer power is bigger, so exist bigger open circuit loss.When general electric welding machine stops welding in the course of the work, only cut off the welding transformer secondary loop, but do not disconnect the primary loop.Owing to, use the method that inserts gate-controlled switch in the series connection of A.C. welder transformer input in the prior art usually in order to reach energy-conservation.Gate-controlled switch or be connected with hand gear on the electrode holder is controlled by the transformer parameter of output end is detected by the Artificial Control break-make or by automatic detection device.The various control forms of prior art, its effect all are only limited to when electric welder no-load and disconnect the transformer circuit of output terminal and reduce open circuit loss, and the pollution to electrical network when working for electric welding machine is then powerless.
The raising of power factor during for load running, the general way that adopts at primary power supply shunt compensation electric capacity, but because zero-load impedance and load impedance is widely different, choosing of building-out capacitor is very important, and selects the improper more serious harmonic pollution that causes easily.
The patent No. is ZL95204571.0, Granted publication day is on May 28th, 1997, the Chinese utility model patent of " electric welding machine energy saver " by name discloses a kind of at the elementary winding one side installation of electric welder transformer gate-controlled switch, and at electric welder transformer secondary windings one side high-frequency signal testing circuit in parallel, the output of high-frequency signal testing circuit is connected to the detection controller, the effect that detects controller is to detect electric welding machine when in running order, the conducting of maintenance gate-controlled switch when the high-frequency signal testing circuit; When detecting electric welding machine and being in Light Condition, turn-off gate-controlled switch, reduce open circuit loss.
Summary of the invention
The purpose of this utility model is to provide a kind of not only efficiency height but also the numerical control electric welding machine little to electric network influencing, when not only unloaded loss little, efficiency also will improve greatly during work.
The high numerically controlled electric welding machine that the utility model proposes comprises computer governor circuit, electromagnetism energy storage device, weld output device and hold the cabinet of complete machine, the electromagnetism energy storage device comprises the directly storage capacitor C1 in parallel with power supply V1, the two ends of storage capacitor C1 are connected with an end of balance cock K1 and balance K switch 2 respectively, balance cock K1 and the other end of balance K switch 2 are connected respectively to the two ends of energy storage inductor L1 mutually, also comprise the coupling inductance L2 by iron core and energy storage inductor L1 coupling; The two ends of coupling inductance L2 are connected to the voltage input end of welding output device; Described balance cock K1, K2 are connected with described computer governor circuit and controlled by it.Governor circuit according to the control instruction of detected electric welding machine duty and acceptance control balance cock K1 and K2 with certain hour break-make at interval, thereby the work of control electric welding machine.
Preferably, described computer governor circuit comprises computer main controller and the detector, drive circuit and the holding circuit that are connected with the computer main controller respectively.
Preferably, high numerically controlled electric welding machine also comprises remote controller and remote-control receiving circuit, and remote-control receiving circuit is connected to the computer governor circuit.
Preferably, the numerically controlled electric welding machine of described height also comprises conventional annexes such as mode indicator 6, manual adjustments button 7, power switch 8 and quick accessory power outlet 9.Various components and parts and a kind of preferable layout type of each device in cabinet are: remote-control receiving circuit 1 and computer governor circuit 2 are installed in the top of cabinet, have remote control receive window 5 in the cabinet front side, mode indicator 6, manual adjustments button 7, power switch 8 and quick accessory power outlet 9 also are placed in the cabinet front side; Storage capacitor C1 and bidirectional balanced switch 4 are positioned at the cabinet inside right side; Energy storage inductor L1, coupling inductance L2 and output device four port networks 11 are positioned at the inside left of cabinet.
Use numerical control electric welding machine of the present utility model, can obtain following beneficial effect:
1, improves the electric welding machine efficiency.When not welding, complete machine is in open-circuit condition, and energy consumption is almost nil; When welding job, under optimum Working, the maximum inoperative energy consumption of complete machine is less than 1%, and efficiency reaches more than 99%.Compare significantly reduction with 32% with the general inoperative energy consumption 50% of prior art A.C. welder and contravariant arc welding machine.Like this, not only reduced no-load power consumption, the capacity usage ratio when also having improved work.
2, stable working state.Electric welding machine of the present utility model uses computer control, can preestablish multiple duty and store the relevant work parameter, carries out state according to need of work during use and selects, and whole welding process is controlled by computer, and is far away from stable than Artificial Control.
3, easy to use.Electric welding machine of the present utility model can be provided with remote control, both can straighforward operation during use, and also can manual operation.
4, little to ambient influnence, electric current during work, voltage are stable, do not have machinery and disturb, and electric spark splashes minimum, and electrical noise, mechanical noise are little.
5, because the break-make of gate-controlled switch can be controlled arbitrarily, and electric welding machine electric current adjustable extent is big, be equivalent to the electric current adjustable range of many Daepori energising welding machines, of many uses.Electric welding machine of the present utility model is applicable to that thickness is in all ferrous metal more than 0.2 millimeter and the welding of non-ferrous metal.
6, volume is little, and is in light weight, is convenient to transportation and use.
Description of drawings
Fig. 1 is the circuit block diagram of the high numerically controlled electric welding machine embodiment of the utility model;
Fig. 2 is the high numerically controlled electric welding machine electromagnetism energy storage device principle schematic of the utility model;
Fig. 3 is the front-view schematic diagram of the high numerically controlled electric welding machine embodiment of the utility model;
Fig. 4 is the schematic rear view of the high numerically controlled electric welding machine embodiment of the utility model.
The specific embodiment
The high numerically controlled electric welding machine that has remote controller is as a kind of preferred implementation of the present utility model, and its circuit block diagram as shown in Figure 1.Wherein, directly import the electromagnetism energy storage device by a branch road, after low depressor step-down, give the power supply of computer main controller by another branch road from the high-tension electricity of electrical network.Computer main controller and the peripheral circuit that is attached thereto comprise that detector, drive circuit and holding circuit constitute the computer governor circuit jointly.The computer governor circuit is according to the control instruction control electric welding machine work of detected electric welding machine duty and acceptance.Control instruction can also can be imported by the direct input of control panel in remote control.Remote control transmitter sends guidance command, and remote-control receiving circuit receives decodes to it behind the guidance command and decoded control instruction is sent to the computer main controller; The computer main controller generates the corresponding driving order and sends to drive circuit according to control instruction; Drive circuit generates drive pulse signal according to driving order; Drive pulse signal control balance cock K1 and K2 turn on and off.Balance cock can be realized with any gate-controlled switch circuit of high speed break-make or elements realized such as two-way switch.The energy flux of balance cock K1 and K2 control electromagnetism energy storage device, control electromagnetism energy storage device is given the power supply of welding output device; The welding output device changes into heat energy with electric energy, realizes the weldment welding.Detector and holding circuit detect and monitor the duty of electromagnetism energy storage device circuit, and monitoring information feedback to the computer main controller are generated one of foundation of driving order as the computer main controller.
Detector mainly detects the duty of electric welding machine, and the specific embodiment of detector has a lot of solutions as current techique; Holding circuit is primarily aimed at abnormal conditions such as output short-circuit, and a lot of solutions are arranged equally in the prior art, and these solutions can be applicable to the utility model.Be noted that; the connected mode of holding circuit is not limited to shown in Figure 1; can also not feed back signal to the computer main controller and directly act on the circuit part of electric welding machine energy storage and output device, also can when feeding back signal to the computer main controller, directly act on the circuit part of electric welding machine electromagnetism energy storage device and/or output device.
Output device comprises soldering appliance and supply networks thereof such as soldering turret or welding gun.Soldering appliance is selected the common soldering appliance of prior art for use, its supply network is four port networks, two input ports of output device four port networks are connected respectively to two end points of coupling inductance L2, and two output ports of four port networks provide operating voltage to soldering appliance.
Fig. 2 is the utility model electromagnetism energy storage device principle schematic.Wherein V1 is a power supply voltage, and storage capacitor C1 and energy storage inductor L1 form antiresonant circuit, and the break-make of antiresonant circuit circuit is subjected to the control of balance cock K1, K2.The control end of balance cock K1, K2 is connected to the computer governor circuit.Coupling inductance L2 is by iron core and energy storage inductor L1 coupling, and the two ends of coupling inductance L2 are connected respectively to two inputs of four port network N, and four port network N are the supply network of output device, and its output voltage V 2 is the operating voltage of soldering appliance.
When balance cock K1, K2 are closed, the loop UNICOM that storage capacitor C1 and energy storage inductor L1 form, the energy storage inductor L1 rheologyization that powers on is coupling in coupling inductance L2 by iron core and goes up and produce induced electromotive force, outputs to four port networks.The other parts of four port networks and output device further transform energy output and welding.When balance cock K1 and/or K2 disconnection, the loop that storage capacitor C1 and energy storage inductor L1 form disconnects, contact between load and the input power supply is cut off, but owing to store certain energy in the inductance, still can keep the voltage of output device is supplied with a period of time t.When electric welder no-load, keep off-state by computer governor circuit control balance cock K1 and K2, reduce as the elementary open circuit loss of the welding transformer of electromagnetism energy storage device.During electric welding machine load welding, computer governor circuit control balance cock K1 and K2 are with the certain frequency break-make, as long as the enough higher positions of frequency can guarantee the stable power-supplying to output device.
Ignore D.C. resistance, the resonant frequency f of the shunt-resonant circuit that energy storage inductor L1 and storage capacitor C1 form is about:
Wherein L, C are respectively shunt-resonant circuit equivalent inductive reactance and equivalent capacitive reactance.And the effect of the controlled balance cock K1 of two in resonant tank, K2 is equivalent to one group of bidirectional filter in addition.During its certain frequency break-make, promptly can filter the DC component that causes in the resonant tank that energy consumes, can reduce the influence of the electric welding machine that causes owing to reasons such as load variations or higher hamonic waves again electrical network.
Wherein the control law of balance cock K1, K2 can design in advance and be stored in the computer main controller according to welding requirements.For example, can estimate its inductance induction reactance, tentatively determine its frequency response curve peak value scope according to each component parameters in the circuit then according to inductance core shape, volume and material, the best frequency that meets with a response by experiment again, with this as switching frequency.And the switch motion time of balance cock K1, K2 also can have influence on the control effect of electric welding machine.For example, a kind of more excellent embodiment is that be 1 nanosecond～17 nanosecond the actuation time of selection balance cock.
Fig. 3 is the front-view schematic diagram of the utility model electric welding machine embodiment, and Fig. 4 is the schematic rear view of the utility model electric welding machine embodiment.In this embodiment, high numerically controlled electric welding machine also comprises conventional annexes such as mode indicator 6, manual adjustments button 7, power switch 8 and quick accessory power outlet 9.Various components and parts and a kind of preferable layout type of each device in cabinet are: remote-control receiving circuit 1 and computer governor circuit 2 are installed in the top of cabinet, have remote control receive window 5 in the cabinet front side, mode indicator 6, manual adjustments button 7, power switch 8 and quick accessory power outlet 9 also are placed in the cabinet front side; Storage capacitor C1 and bidirectional balanced switch 4 are positioned at the cabinet inside right side; Energy storage inductor L1, coupling inductance L2 and output device four port networks 11 are positioned at the inside left of cabinet; Rear side at cabinet is supply socket 13 and ventilating fan 14.
Be noted that the above specific embodiment just is recited in this as preferred embodiment of the present utility model, can not be with this as qualification to the utility model scope.One of ordinary skill in the art can be made amendment and the equivalence replacement to the utility model under the disclosed guide of the utility model, and these modifications and replacement will fall into protection domain of the present utility model.Therefore, the utility model is not limited thereto the disclosed specific embodiment in place, but all embodiment that fall in the utility model claim scope belong to protection scope of the present invention.
Claims (3)
1, a kind of high numerically controlled electric welding machine, comprise computer governor circuit, electromagnetism energy storage device, weld output device and hold the cabinet of complete machine, it is characterized in that, described electromagnetism energy storage device comprises the directly storage capacitor (C1) in parallel with power supply (V1), the two ends of storage capacitor (C1) are connected with the end of balance cock (K1) with balance cock (K2) respectively, balance cock (K1) and the other end of balance cock (K2) are connected respectively to the two ends of energy storage inductor (L1) mutually, also comprise the coupling inductance (L2) by iron core and energy storage inductor (L1) coupling; The two ends of coupling inductance (L2) are connected to the voltage input end of welding output device; Described balance cock (K1), (K2) are connected with described computer governor circuit and controlled by it.
2, the numerically controlled electric welding machine of height according to claim 1 is characterized in that, described computer governor circuit comprises computer main controller and the detector, drive circuit and the holding circuit that are connected with the computer main controller respectively.
3, the numerically controlled electric welding machine of height according to claim 1 and 2 is characterized in that, the numerically controlled electric welding machine of described height also comprises remote controller and remote-control receiving circuit, and described remote-control receiving circuit is connected to described computer governor circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203065889U CN201132248Y (en) | 2007-12-28 | 2007-12-28 | High energy-saving NC-electric welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203065889U CN201132248Y (en) | 2007-12-28 | 2007-12-28 | High energy-saving NC-electric welding machine |
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| Publication Number | Publication Date |
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| CN201132248Y true CN201132248Y (en) | 2008-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007203065889U Expired - Fee Related CN201132248Y (en) | 2007-12-28 | 2007-12-28 | High energy-saving NC-electric welding machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102237708A (en) * | 2010-04-23 | 2011-11-09 | 环旭电子股份有限公司 | Power supply system and method capable of preventing power supply interruption |
| CN107442895A (en) * | 2016-05-30 | 2017-12-08 | 上海沪工焊接集团股份有限公司 | Welding machine control circuit |
-
2007
- 2007-12-28 CN CNU2007203065889U patent/CN201132248Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102237708A (en) * | 2010-04-23 | 2011-11-09 | 环旭电子股份有限公司 | Power supply system and method capable of preventing power supply interruption |
| CN107442895A (en) * | 2016-05-30 | 2017-12-08 | 上海沪工焊接集团股份有限公司 | Welding machine control circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081015 Termination date: 20111228 |