CN203761363U - Signal conversion circuit - Google Patents
Signal conversion circuit Download PDFInfo
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- CN203761363U CN203761363U CN201420090351.1U CN201420090351U CN203761363U CN 203761363 U CN203761363 U CN 203761363U CN 201420090351 U CN201420090351 U CN 201420090351U CN 203761363 U CN203761363 U CN 203761363U
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 21
- 238000003466 welding Methods 0.000 claims abstract description 73
- 230000002194 synthesizing effect Effects 0.000 claims description 21
- 230000011664 signaling Effects 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 abstract 3
- 230000003750 conditioning effect Effects 0.000 abstract 3
- 238000003786 synthesis reaction Methods 0.000 abstract 3
- 239000000203 mixture Substances 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Abstract
Disclosed in the utility model is a signal conversion circuit comprising a waveform generator module, a signal pre-conditioning module and a signal synthesis module. The waveform generator module is used for generating a reference signal with a preset frequency; the signal pre-conditioning module is used for carrying out processing on an amplitude and a phase of an input signal; and the signal synthesis module is used for carrying out synthesis on the generated reference signal as well as a first path input signal and a second path input signal and outputting one path of alternating-current signal with the adjustable amplitude, wherein the first path input signal and the second path input signal have been processed by the signal pre-conditioning module. With the signal conversion circuit, the signal outputted by a robot can be converted into a signal needed by a welding power supply; preset controlling of the voltage and the current of the welding power supply by the robot can be realized; a robot interface can be added to the welding power supply conveniently or a welding power supply interface can be added to the robot, so that the robot and the welding power supply can be assembled into a welding system conveniently.
Description
Technical field
The utility model relates to source of welding current technical field, particularly relates to a kind of signaling conversion circuit.
Background technology
Voltage, the electric current of at present a lot of sources of welding current is preset as the square-wave signal of a road certain frequency, square-wave signal positive half cycle amplitude corresponding current or voltage, and negative half period amplitude corresponds to voltage or electric current.In the time of the source of welding current and robot composition welding system, the analog signal providing due to robot is generally unidirectional, does not provide the needed signal of the source of welding current, thus implement very inconvenient.Can only solve in the following manner: the first is to take number bus mode; The second is that default continuation of welding current voltage completed by wire-feed motor, and robot just does control work in addition; The third is by the analog signal of robot output, walks around the interface of power supply and wire-feed motor, directly signal is linked on the wiring board of power supply.
But all there is obvious deficiency in above-mentioned way.Such as employing needs number bus mode, although can realize the communication contact between the source of welding current and robot, but as source of welding current manufacturer, because the agreement difference of different manufacturers robot, so there is limitation, if adapt to producer of numerous robot, need huge protocol library and Job readiness.If the preset signals of current/voltage continues to be completed by wire-feed motor, robot just completes other and controls, the complex processing requirements that should use adaptation not.
Utility model content
Based on this, being necessary, for prior art defect, provides a kind of signaling conversion circuit, thereby can realize easily the default control of the voltage and current of robot to the source of welding current, convenient to source of welding current increase robot interface, with robot composition welding system.
Its technical scheme is as follows.
A kind of signaling conversion circuit, comprise waveform generator module, signal pre-conditioner module and signal synthesizing module, described waveform generator module connects respectively described signal pre-conditioner module and described signal synthesizing module, and described signal pre-conditioner module connects described signal synthesizing module;
Described waveform generator module, for generating the reference signal of predeterminated frequency;
Described signal pre-conditioner module, processes for the amplitude to input signal and phase place; Wherein, described input signal comprises first via input signal and the second road input signal;
Described signal synthesizing module, for synthesizing the described reference signal generating, first via input signal and the second road input signal after described signal pre-conditioner resume module, and export the adjustable AC signal of a road amplitude; Wherein, described first via input signal is for adjusting the positive half cycle amplitude of output signal, and described the second road input signal is for adjusting the negative half period amplitude of output signal.
The input signal of the technical program signaling conversion circuit is at least two-way analog signal, is output as the adjustable AC signal of a positive and negative amplitude in road.Wherein, a road input analog signal can be adjusted the positive half cycle amplitude of output waveform, and an other road input analog signal can be adjusted the negative half period amplitude of output waveform.Can, easily the signal of robot output, be converted to the needed signal of the source of welding current.Realize the default control of the voltage and current of robot to the source of welding current, convenient to source of welding current increase robot interface, or increase source of welding current interface to robot, make robot and the source of welding current form more easily welding system.
In an embodiment, described signal pre-conditioner module is connected with the robot in welding system therein; Described signal synthesizing module is connected with the source of welding current in welding system.
In an embodiment, described waveform generator module is 555 chips therein.
In an embodiment, described signal synthesizing module is photoelectrical coupler therein.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model signaling conversion circuit.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described in detail.
Referring to Fig. 1, is the structural representation of the utility model signaling conversion circuit.
A kind of signaling conversion circuit, comprise waveform generator module 101, signal pre-conditioner module 102 and signal synthesizing module 103, described waveform generator module 101 connects respectively described signal pre-conditioner module 102 and described signal synthesizing module 103, and described signal pre-conditioner module 102 connects described signal synthesizing module 103;
Described waveform generator module 101, for generating the reference signal of predeterminated frequency;
Described signal pre-conditioner module 102, processes for the amplitude to input signal and phase place; Wherein, described input signal comprises first via input signal and the second road input signal;
Described signal synthesizing module 103, for the described reference signal generating, process described signal pre-conditioner module 102 first via input signal after treatment and the second road input signal are synthesized, and exports the adjustable AC signal of a road amplitude; Wherein, described first via input signal is for adjusting the positive half cycle amplitude of output signal, and described the second road input signal is for adjusting the negative half period amplitude of output signal.
Described first via input signal and described the second road input signal are analog signal.The input signal of signaling conversion circuit is at least two-way analog signal, the adjustable AC signal of the positive and negative amplitude in output signal Wei Yi road.One tunnel input analog signal can be adjusted the positive half cycle amplitude of output waveform.An other road input analog signal can be adjusted the negative half period amplitude of output waveform.
It is worthy of note, described input signal at least comprises two-way analog signal, all right Wei San road or more multichannel analog signals.
The amplitude range of described first via input signal and described the second road input signal is 0 to 10V.It is worthy of note, the amplitude of described first via input signal and described the second road input signal can be not identical, and its concrete signal amplitude can be selected flexibly according to actual conditions.
Can pass through 555 chips or similar functions chip, as waveform generator.Adopt 555 chips and peripheral circuit thereof, can produce the reference signal of predeterminated frequency.Described predeterminated frequency can be set according to actual conditions, coordinates the operating frequency of the source of welding current being connected with signal synthesizing module.Except 555 chips, described waveform generator can also add by operational amplifier the form realization of logical transition circuit.For specific implementation form, the utility model does not limit.
Preferably, the reference signal that described waveform generator module generates can be square-wave signal.At present, the voltage that the source of welding current in welding system uses, the square-wave signal that electric current is preset as a road certain frequency conventionally, this way can make the utility model obtain application widely, and can reduce hardware cost.
Preferably, the source signal of signal produces as waveform generator reference signal that to adopt amplitude be positive and negative 15V, the concrete amplitude of described source signal, the in addition reference of the voltage that can use according to the source of welding current in welding system, the intensity of current signal.
Described signal pre-conditioner module is connected with the robot in welding system, and described robot is used for providing described input signal; Described signal synthesizing module is connected with the source of welding current in welding system, and the described source of welding current is used for receiving described output signal.Robot in the front end connecting welding system of the utility model signaling conversion circuit, receive the analog signal that robot provides, the source of welding current in the connecting welding system of rear end, signal after synthetic is offered to the source of welding current, thereby solve in the time of the source of welding current and robot composition welding system, because robot does not provide the needed signal of the source of welding current, cause realizing difficult problem.The signal of robot output, be converted to the needed signal of the source of welding current easily, make robot directly control the voltage and current of the source of welding current more convenient.
Described signal synthesizing module is synthesized the described reference signal generating, first via input signal and the second road input signal after described signal pre-conditioner resume module by photoelectrical coupler.Preferably, by photoelectrical coupler (optocoupler) or similar functions device, realize the synthetic of output signal.
The utility model signaling conversion circuit, is arranged on the source of welding current in welding system, can simplify robot interface's design of the source of welding current.The source of welding current can be various models and specification, and for example carbon dioxide gas shielded welding machine, pulse GMAW, dipulse gas are protected weldering and joined other source of welding current of wire-feed motor.The utility model signaling conversion circuit, also can be arranged in the robot in welding system, simplifies the source of welding current Interface design of robot.Robot can be various models and specification, does not repeat them here.
In the time that the utility model signaling conversion circuit is connected between robot and the source of welding current, for strengthening the accuracy of output signal, improve result of use, can also between the source of welding current and robot, increase a feedback circuit.
Modules in the utility model, all can be realized by multiple concrete mode.Those skilled in the art, by disclosed technology contents in the utility model and in conjunction with common practise, adopt known various circuit structures or chip, can complete building of modules.Therefore,, for the concrete structure of modules, no longer specifically described at this.
Square-wave signal to the source of welding current is provided at present, and the adjustment of positive half cycle amplitude and negative half period amplitude, lean on two potentiometers to carry out, and these two potentiometers are arranged in wire-feed motor mostly.Also, in the time of the source of welding current and robot composition welding system, because robot does not provide the needed signal of the source of welding current.
The input signal of the utility model signaling conversion circuit is at least two-way analog signal, is output as the adjustable AC signal of a positive and negative amplitude in road.Wherein, a road input analog signal can be adjusted the positive half cycle amplitude of output waveform, and an other road input analog signal can be adjusted the negative half period amplitude of output waveform.Can, easily the signal of robot output, be converted to the needed signal of the source of welding current.Realize the default control of the voltage and current of robot to the source of welding current, convenient to source of welding current increase robot interface, or increase source of welding current interface to robot, make robot and the source of welding current form more easily welding system.
By the utility model, can be easily the signal of robot output, be converted to the needed signal of the source of welding current, make robot directly control the voltage and current of the source of welding current more convenient.Simplify greatly and the robot interface of the convenient source of welding current applies design, or the source of welding current Interface design of robot.The present embodiment can be applied in the middle of the source of welding current, wire-feed motor or the welding robot of interface requirements widely.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.
Claims (4)
1. a signaling conversion circuit, it is characterized in that, comprise waveform generator module, signal pre-conditioner module and signal synthesizing module, described waveform generator module connects respectively described signal pre-conditioner module and described signal synthesizing module, and described signal pre-conditioner module connects described signal synthesizing module;
Described waveform generator module, for generating the reference signal of predeterminated frequency;
Described signal pre-conditioner module, processes for the amplitude to input signal and phase place; Wherein, described input signal comprises first via input signal and the second road input signal;
Described signal synthesizing module, for synthesizing the described reference signal generating, first via input signal and the second road input signal after described signal pre-conditioner resume module, and export the adjustable AC signal of a road amplitude; Wherein, described first via input signal is for adjusting the positive half cycle amplitude of output signal, and described the second road input signal is for adjusting the negative half period amplitude of output signal.
2. signaling conversion circuit according to claim 1, is characterized in that, described signal pre-conditioner module is connected with the robot in welding system; Described signal synthesizing module is connected with the source of welding current in welding system.
3. signaling conversion circuit according to claim 1, is characterized in that, described waveform generator module is 555 chips.
4. signaling conversion circuit according to claim 1, is characterized in that, described signal synthesizing module is photoelectrical coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420090351.1U CN203761363U (en) | 2014-02-28 | 2014-02-28 | Signal conversion circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420090351.1U CN203761363U (en) | 2014-02-28 | 2014-02-28 | Signal conversion circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203761363U true CN203761363U (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420090351.1U Expired - Lifetime CN203761363U (en) | 2014-02-28 | 2014-02-28 | Signal conversion circuit |
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| CN (1) | CN203761363U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103840814A (en) * | 2014-02-28 | 2014-06-04 | 上海沪工焊接集团股份有限公司 | Signal conversion circuit and method |
-
2014
- 2014-02-28 CN CN201420090351.1U patent/CN203761363U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103840814A (en) * | 2014-02-28 | 2014-06-04 | 上海沪工焊接集团股份有限公司 | Signal conversion circuit and method |
| CN103840814B (en) * | 2014-02-28 | 2016-12-07 | 上海沪工焊接集团股份有限公司 | Signaling conversion circuit and method |
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