CN107127423A - Realize the sequential control circuit and method of constant speed wire feed - Google Patents
Realize the sequential control circuit and method of constant speed wire feed Download PDFInfo
- Publication number
- CN107127423A CN107127423A CN201710537728.1A CN201710537728A CN107127423A CN 107127423 A CN107127423 A CN 107127423A CN 201710537728 A CN201710537728 A CN 201710537728A CN 107127423 A CN107127423 A CN 107127423A
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- CN
- China
- Prior art keywords
- wire
- feed motor
- current
- feed
- module
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/124—Circuits or methods for feeding welding wire
Abstract
The present invention relates to a kind of sequential control circuit and method for realizing constant speed wire feed, including wire-feed motor drive module, for being driven by pulsed operation voltage to wire-feed motor；Current-voltage sampling module, is acquired, and the data collected are sent to described time-sequence control module for operating current and EMF voltage to described wire-feed motor；Time-sequence control module, is handled for the data to described current-voltage sampling module feedback, and sends control signals to described wire-feed motor drive module；And wire feeding motor, afterflow clamp diode and current sample sensor.Using the circuit and method, employ the sequential control circuit and method of realizing constant speed wire feed in the invention, successfully realize that wire feed function keeps constant speed wire feed under different loads size and different resistances, and be precisely controlled with speed, fast response time, the advantage that wire feed is stable, cost is low, is with a wide range of applications.
Description
Technical field
The present invention relates to source of welding current technical field, more particularly to wire feed SECO technical field, one kind is specifically referred to
Realize the sequential control circuit and method of constant speed wire feed.
Background technology
The existing wire feed system of in the market is divided into 3 kinds, and the first is fetches and delivers filament voltage feedback, Isobarically Control technology, and advantage is
Control circuit simple, cost is low, shortcoming is when being influenceed by load and wire-feeder resistance, it is impossible to ensure that wire feed system is stable and permanent
Fast wire feed；Second is to fetch and deliver filament voltage feedback, plus electric current Compensating Control, and advantage is to be influenceed by load and wire-feeder resistance
When, feeding stability can be improved, shortcoming is when being influenceed by load and wire-feeder resistance, it is impossible to ensure constant speed wire feed, and regulation rings
Should be slow；The third is wire-feed motor grating belt speed measure feedback control technology, and advantage is by wire feed load and drag effects, it is ensured that permanent
Fast wire feed, control is accurate, and response is fast, and shortcoming is complicated for control circuit, and wire-feed motor volume is big, and cost is high.
Based on above reason, it is necessary to which develop one kind is not influenceed by load and wire-feeder resistance, wire feed rate keeps constant control
Circuit sequence method processed, and small volume, cost economy, reliable in quality.
The content of the invention
The purpose of the present invention be overcome the shortcoming of above-mentioned prior art there is provided it is a kind of can realize constant speed wire feed when
Sequence control circuit and method.
To achieve these goals, the present invention has following composition：
This realizes the sequential control circuit of constant speed wire feed, including：
Wire-feed motor drive module, for being driven by pulsed operation voltage to wire-feed motor；
Current-voltage sampling module, is acquired for operating current and EMF voltage to described wire-feed motor, and
The data collected are sent to described time-sequence control module；
Time-sequence control module, is handled for the data to described current-voltage sampling module feedback, and will control
Signal is sent to described wire-feed motor drive module；And
Wire feeding motor, afterflow clamp diode and current sample sensor,
Wherein, the positive pole of described wire feeding motor first end respectively with described wire-feed motor drive module, described electricity
The first end of stream voltage sample module is connected with described afterflow clamp diode negative pole, and the negative pole of described wire feeding motor divides
The second end not with described wire-feed motor drive module, the second end of described current-voltage sampling module and described afterflow pincers
Position diode cathode is connected, and described current sample sensor is connected with the 3rd end of described current-voltage sampling module
Connect.
Also include a kind of sequential control method that constant speed wire feed is realized based on foregoing circuit, comprise the following steps：
(1) wire-feed motor is driven with the pulsed operation voltage of fixed frequency by described wire-feed motor drive module；
(2) the current-voltage sampling module described in is acquired to the operating current of described wire-feed motor；
(3) the current-voltage sampling module described in judges whether described operating current terminates, if it is, continuing step
(4) step (2), otherwise, is continued；
(4) the current-voltage sampling module described in is acquired to the EMF voltage in described wire-feed motor, and is fed back
To time-sequence control module；
(5) time-sequence control module described in is handled the data of described current-voltage sampling module feedback, and will
Control signal is sent to described wire-feed motor drive module；
(6) the pulsed operation voltage of the control wire-feed motor drive module adjustment output described in makes described wire-feed motor with constant
Rotary speed working.
The sequential control circuit and method of realizing constant speed wire feed in the invention are employed, successfully realizes wire feed function not
With keeping constant speed wire feed under load and different resistances, and be precisely controlled with speed, fast response time, wire feed is stable, into
This low advantage, is with a wide range of applications.
Brief description of the drawings
Fig. 1 realizes the sequential control circuit of constant speed wire feed and the principle schematic of method for the present invention's.
Fig. 2 shows for the waveform of the discontinuous mode of operation of the sequential control circuit for realizing constant speed wire feed and method of the invention
It is intended to.
Fig. 3 for the present invention realize constant speed wire feed sequential control circuit and method actual waveform schematic diagram.
Embodiment
In order to more clearly describe the technology contents of the present invention, carried out with reference to specific embodiment further
Description.
This realizes the sequential control circuit of constant speed wire feed, including：
Wire-feed motor drive module, for being driven by pulsed operation voltage to wire-feed motor；
Current-voltage sampling module, is acquired for operating current and EMF voltage to described wire-feed motor, and
The data collected are sent to described time-sequence control module；
Time-sequence control module, is handled for the data to described current-voltage sampling module feedback, and will control
Signal is sent to described wire-feed motor drive module；And
Wire feeding motor, afterflow clamp diode and current sample sensor,
Wherein, the positive pole of described wire feeding motor first end respectively with described wire-feed motor drive module, described electricity
The first end of stream voltage sample module is connected with described afterflow clamp diode negative pole, and the negative pole of described wire feeding motor divides
The second end not with described wire-feed motor drive module, the second end of described current-voltage sampling module and described afterflow pincers
Position diode cathode is connected, and described current sample sensor is connected with the 3rd end of described current-voltage sampling module
Connect.
The present invention is given by wire feed rate, the EMF voltage signal produced during sampling wire-feed motor work, then passes through
Timing control unit circuit internal arithmetic, to control wire feed drive circuit, it is ensured that wire-feed motor can be protected in different conditions
The constant speed wire feed for keeping steady fixed.
The constant speed wire feed control sequential principle of the present invention, when wire-feed motor current work is in non-continuous mode, due to inertia
The reason for, the operating of wire-feed motor maintenance, now wire-feed motor characteristic is changed into the process of generator, can produce corresponding electromotive force electricity
Pressure, and the EMF voltage produced is the rotating speed proportionate relationship for directly reacting a wire-feed motor.It therefore, it can utilize this base
EMF voltage in reason, sampling wire-feed motor is fed back, and realizes wire feed rate constant control, as shown in figure 1, wherein M1 is to send
Silk motor, D1 is afterflow clamp diode, and H1 is current sample sensor.
By wire feed drive circuit, give wire-feed motor one fixed frequency pulse operating voltage driving, realize that wire feed is electromechanical
Stream is operated under non-continuous mode；Judged by current-voltage sampling circuit, at the end of wire-feed motor operating current is determined,
The EMF voltage in wire-feed motor is acquired, the electromotive force that collection wire-feed motor current work is produced under non-continuous mode in real time
Voltage, feeds back to the internal arithmetic of timing control unit circuit and processing, wire feed drive circuit is controlled, to adjust wire-feed motor not
With under load and different wire-feeder resistances, the rotating speed of wire-feed motor can keep constant operation, it is ensured that wire feed rate is given with sending
The rotating speed of silk machine is consistent.Realize under different loads size and different wire-feeder resistances, wire feed rotating speed can keep constant, and
Wire-feed motor small volume, cost economy, work wave of the wire-feed motor under discontinuous mode of operation is as shown in Figure 2.
Illustrated for the step of current-voltage sampling circuit operation principle one, at the end of wire-feed motor current loop is detected,
Delay after certain time, start to take the EMF voltage produced in wire-feed motor, in the work of wire-feed motor driving voltage next cycle
Terminate in advance before, such sampling time sequence mode may insure that the voltage for sampling is the real electromotive force electricity in wire-feed motor
Pressure, the EMF voltage that wire-feed motor work is produced is the rotation speed relation for directly reacting a wire-feed motor, by circuit filtering
The internal arithmetic of timing control unit circuit and processing are fed back to after reason, wire feed drive circuit is controlled, it is ensured that the rotating speed of wire-feed motor
Constant, working stability, wire feed control is accurate, the features such as responding fast, and its actual waveform is as shown in Figure 3.
Also include a kind of sequential control method that constant speed wire feed is realized based on foregoing circuit, comprise the following steps：
(1) wire-feed motor is driven with the pulsed operation voltage of fixed frequency by described wire-feed motor drive module；
(2) the current-voltage sampling module described in is acquired to the operating current of described wire-feed motor；
(3) the current-voltage sampling module described in judges whether described operating current terminates, if it is, continuing step
(4) otherwise, step (2) is continued；
(4) the current-voltage sampling module described in is acquired to the EMF voltage in described wire-feed motor, and is fed back
To time-sequence control module；
(5) time-sequence control module described in is handled the data of described current-voltage sampling module feedback, and will
Control signal is sent to described wire-feed motor drive module；
(6) the pulsed operation voltage of the control wire-feed motor drive module adjustment output described in makes described wire-feed motor with constant
Rotary speed working.
The sequential control circuit and method of realizing constant speed wire feed in the invention are employed, successfully realizes wire feed function not
With keeping constant speed wire feed under load and different resistances, and be precisely controlled with speed, fast response time, wire feed is stable, into
This low advantage, is with a wide range of applications.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that can still make
Various modifications and alterations are without departing from the spirit and scope of the present invention.Therefore, specification and drawings are considered as illustrative
And it is nonrestrictive.
Claims (2)
1. a kind of sequential control circuit for realizing constant speed wire feed, it is characterised in that described circuit includes：
Wire-feed motor drive module, for being driven by pulsed operation voltage to wire-feed motor；
Current-voltage sampling module, is acquired, and will adopt for operating current and EMF voltage to described wire-feed motor
The data collected are sent to described time-sequence control module；
Time-sequence control module, is handled for the data to described current-voltage sampling module feedback, and by control signal
Send to described wire-feed motor drive module；And
Wire feeding motor, afterflow clamp diode and current sample sensor,
Wherein, the first end of the positive pole of described wire feeding motor respectively with described wire-feed motor drive module, described electric current electricity
The first end of pressure sampling module is connected with described afterflow clamp diode negative pole, the negative pole of described wire feeding motor respectively with
Second end of described wire-feed motor drive module, the second end of described current-voltage sampling module and described afterflow clamper two
Pole pipe positive pole is connected, and described current sample sensor is connected with the 3rd end of described current-voltage sampling module.
2. a kind of sequential control method of the circuit realiration constant speed wire feed based on described in claim 1, it is characterised in that described
Method comprises the following steps：
(1) wire-feed motor is driven with the pulsed operation voltage of fixed frequency by described wire-feed motor drive module；
(2) the current-voltage sampling module described in is acquired to the operating current of described wire-feed motor；
(3) the current-voltage sampling module described in judges whether described operating current terminates, if it is, continue step (4),
Otherwise, step (2) is continued；
(4) the current-voltage sampling module described in is acquired to the EMF voltage in described wire-feed motor, and when feeding back to
Sequence control module；
(5) time-sequence control module described in is handled the data of described current-voltage sampling module feedback, and will control
Signal is sent to described wire-feed motor drive module；
(6) the pulsed operation voltage of the control wire-feed motor drive module adjustment output described in makes described wire-feed motor with constant rotational speed
Work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710537728.1A CN107127423A (en) | 2017-07-04 | 2017-07-04 | Realize the sequential control circuit and method of constant speed wire feed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710537728.1A CN107127423A (en) | 2017-07-04 | 2017-07-04 | Realize the sequential control circuit and method of constant speed wire feed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107127423A true CN107127423A (en) | 2017-09-05 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710537728.1A Pending CN107127423A (en) | 2017-07-04 | 2017-07-04 | Realize the sequential control circuit and method of constant speed wire feed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107876936A (en) * | 2017-11-03 | 2018-04-06 | 唐山松下产业机器有限公司 | Arc-welding equipment, electric arc welding controller and control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200947584Y (en) * | 2006-04-07 | 2007-09-12 | 唐山松下产业机器有限公司 | Wire-feeding speed regulation system |
| CN101051808A (en) * | 2006-04-07 | 2007-10-10 | 唐山松下产业机器有限公司 | Method and system for regulating feeding wire speed |
| US20110204033A1 (en) * | 2010-02-23 | 2011-08-25 | Illinois Tool Works Inc. | Welding system with torque motor wire drive |
| CN202655768U (en) * | 2012-02-22 | 2013-01-09 | 北京工业大学 | Wire feeding speed adjustment device |
| CN204122902U (en) * | 2014-09-29 | 2015-01-28 | 上海沪工焊接集团股份有限公司 | Solder wire convey circuit |
-
2017
- 2017-07-04 CN CN201710537728.1A patent/CN107127423A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200947584Y (en) * | 2006-04-07 | 2007-09-12 | 唐山松下产业机器有限公司 | Wire-feeding speed regulation system |
| CN101051808A (en) * | 2006-04-07 | 2007-10-10 | 唐山松下产业机器有限公司 | Method and system for regulating feeding wire speed |
| US20110204033A1 (en) * | 2010-02-23 | 2011-08-25 | Illinois Tool Works Inc. | Welding system with torque motor wire drive |
| CN202655768U (en) * | 2012-02-22 | 2013-01-09 | 北京工业大学 | Wire feeding speed adjustment device |
| CN204122902U (en) * | 2014-09-29 | 2015-01-28 | 上海沪工焊接集团股份有限公司 | Solder wire convey circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107876936A (en) * | 2017-11-03 | 2018-04-06 | 唐山松下产业机器有限公司 | Arc-welding equipment, electric arc welding controller and control method |
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