CN204122897U - A kind of control system of concret iron electroslag pressure welder - Google Patents
A kind of control system of concret iron electroslag pressure welder Download PDFInfo
- Publication number
- CN204122897U CN204122897U CN201420548823.3U CN201420548823U CN204122897U CN 204122897 U CN204122897 U CN 204122897U CN 201420548823 U CN201420548823 U CN 201420548823U CN 204122897 U CN204122897 U CN 204122897U
- Authority
- CN
- China
- Prior art keywords
- circuit
- welding
- short
- current
- voltage
- Prior art date
- 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.)
- Active
Links
Landscapes
- Arc Welding Control (AREA)
Abstract
The utility model discloses a kind of control system of concret iron electroslag pressure welder, it comprises: virtual voltage circuit, short-circuit detecting circuit, power control circuit and control circuit, virtual voltage control circui connects welding terminal, export a virtual voltage at welding terminal always, and when the short circuit of welding machine output loop, virtual voltage is reduced to 0 volt; Short-circuit detecting circuit connects with welding terminal, detects in real time the voltage and current that welding machine exports, and judges the whether short circuit of welding machine output loop with this; The source of welding current in power control circuit control connection concret iron electroslag pressure welder, for electric arc during reinforcement welding provides energy; Control circuit control connection virtual voltage circuit, short-circuit detecting circuit, power control circuit, and coordinate the work that cooperatively interacts between them, realize the steel bar flux press welding process of contactless spark.The scenario-frame that the utility model provides is simple, is easy to realize, and can realize the steel bar flux press welding of contactless spark.
Description
Technical field
The utility model relates to a kind of electric welding technology, is specifically related to electroslag pressure welding technology.
Background technology
Electroslag pressure welding two reinforcing bars is placed into vertical or oblique (gradient is in the scope of 4:1) docking form, utilize welding current by two reinforcing bar gaps, arc process and Electroslag Process is formed under welding flux layer, produce arc heat and resistance heat, fusing reinforcing bar, a kind of press welding method pressurizeed.Briefly, electric current is utilized to be carried out a kind of fusion welding method welded by the resistance heat that liquid slag produces exactly.But compared with arc welding, its work efficiency is high, cost is low, has obtained good effect in some high-building constructions.According to the electrode shape used, electroslag welding with wire, electroslag welding with plate electrode, electroslag welding with consumable nozzle etc. can be divided into.Electroslag welding is applicable to the welding of slab.Apply more in boiler, heavy-duty machinery, shipbuilding industry.
The welding process of electroslag pressure welding comprises four-stage: arc process, arc process, Electroslag Process and top press through journey.
When welding starts, first ignite electric arc between upper and lower two reinforcing bar end faces, makes solder melts around electric arc form hole; Welding arc burns between two reinforcing bars thereupon, arc heat is by two end reinforced fusings, molten metal forms molten bath, and the solder flux of melting forms slag (slag bath), is covered on molten bath, now, along with the burning of electric arc, upper and lower two end reinforcedly melt gradually, by upper reinforcing bar constantly under give, to keep the stable of electric arc, continue arc process; With the continuity of arc process, two end reinforced fusing amounts increase, and molten bath and slag bath are deepened, and during certain depth to be achieved, quickening send speed under reinforcing bar, its end is directly contacted with slag bath, at this moment, and arc extinction and become arc process into Electroslag Process; When treating that the resistance heat that Electroslag Process produces makes the end of upper and lower two reinforcing bars reach total cross-section homogeneous heating, rapidly upper reinforcing bar is pushed up pressure downwards, extrude whole slag and liquid metal, cut off the source of welding current immediately, complete welding job.
Electroslag pressure welding is applicable to the connection of vertical or oblique (gradient is within the scope of 4:1) reinforcing bar in monolithic reinforced concrete structure, particularly for post, the wall reinforcing bar of skyscraper, applies particularly extensive.
The welding facility of current electroslag pressure welding mainly comprise: the source of welding current, weld jig, control cabinet.
(1) source of welding current
Electroslag pressure welding can adopt interchange or the direct current source of welding current, and welding machine capacity should be selected according to the diameter of institute's welding steel muscle.Because the manufacturer of electroslag pressure welding machine is a lot, product design respectively has not identical, so the model of the adapted source of welding current is also same, conventional mostly is Arc Welding Power (arc welder), as BX3-500 type, BX3-630 type, BX3-750 type, BX3-1000 type etc.
(2) weld jig
Weld jig is made up of column, gearing, upper and lower clamp, solder flux cylinder etc., it is provided with watch-dog, i.e. gauge tap, secondary voltage table, time display (buzzer) etc., weld jig should have enough rigidity, should move flexibly under maximum permission load, operation is convenient; The diameter of solder flux cylinder should adapt with welded bar diameter; Annex (as voltmeter, time display etc.) on watch-dog should be equipped with complete.
(3) control cabinet
The Main Function of control cabinet is operated by welder, the elementary line of Arc Welding Power is switched on or switched off, control cabinet front plate is equipped with primary voltage table, power switch, indicator lamp, signal electric bell etc., also can scribes welding parameter table, for operating personnel's reference.
Its complex structure of control circuit in the control cabinet of existing concret iron electroslag pressure welder, except cost height, under this environment in construction site, goes back the problems such as existence and stability is not high.
Utility model content
For the problem such as complex structure, poor reliability existing for the control circuit in existing electroslag pressure welding machine control cabinet, it is simple that the purpose of this utility model is to provide a kind of structure, is easy to the concret iron electroslag pressure welder control system realized.
In order to achieve the above object, the utility model adopts following technical scheme:
A control system for concret iron electroslag pressure welder, described control system comprises:
Virtual voltage circuit, described virtual voltage control circui connects welding terminal, exports a virtual voltage always, and when the short circuit of welding machine output loop, virtual voltage is reduced to 0 volt at welding terminal;
Short-circuit detecting circuit, described short-circuit detecting circuit connects with welding terminal, detects in real time the voltage and current that welding machine exports, and judges the whether short circuit of welding machine output loop with this;
Power control circuit, the source of welding current in described power control circuit control connection concret iron electroslag pressure welder, for electric arc during reinforcement welding provides energy;
Control circuit, described control circuit control connection virtual voltage circuit, short-circuit detecting circuit, power control circuit, and coordinate the work that cooperatively interacts between them, realize the steel bar flux press welding process of contactless spark.
In a particular embodiment, described control circuit, after opening welding machine electric power, controls virtual voltage circuit and exports a virtual voltage at welding terminal always; Control short-circuit detecting circuit simultaneously and detect the voltage and current that welding machine exports in real time, and judge the output loop whether short circuit of welding machine according to the voltage and current that short-circuit detecting circuit detects; After described control circuit judges the output loop short circuit of welding machine according to the voltage and current that short-circuit detecting circuit detects, control virtual voltage circuit and virtual voltage is reduced to 0 volt of (electric current less (being less than 1A) that virtual voltage exports, therefore the journey that switches on power does not produce electric arc), and after time delay a period of time, control the power control circuit control source of welding current and export a little striking current;
According to the voltage and current that short-circuit detecting circuit detects, described control circuit judges that the output loop of welding machine is non-shorting after, control the power control circuit adjustment source of welding current and export welding current;
After described control circuit judges the output loop short circuit of welding machine again according to the voltage and current that short-circuit detecting circuit detects, the electric current that the control power control circuit adjustment source of welding current exports reduces to 0, and (this process is closed because welding machine exports, only have virtual voltage to exist, the electric current less (being less than 1A) that virtual voltage exports therefore this process does not produce electric arc).
The scenario-frame that the utility model provides is simple, is easy to realize, because simple structure ensure that the operational reliability of control system.
Accompanying drawing explanation
The utility model is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is the system block diagram of the control system of concret iron electroslag pressure welder in the utility model;
Fig. 2 is the flow chart that the utility model carries out the steel bar flux press welding of contactless spark.
Detailed description of the invention
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
See Fig. 1, it is depicted as the system block diagram of the control system 100 of the concret iron electroslag pressure welder that the utility model provides.As seen from the figure, this control system 100 comprises: these four parts of virtual voltage circuit 101, short-circuit detecting circuit 102, power control circuit 103, control circuit 104.
Whole control system 100 is arranged in the control cabinet of concret iron electroslag pressure welder, wherein, virtual voltage circuit 101 control connection welding terminal, for exporting a virtual voltage at welding terminal always, this virtual voltage is lower than safe voltage, and be present in the output of welding machine always, simultaneously when the short circuit of welding machine output loop, virtual voltage is reduced to 0 volt.Virtual voltage circuit 101 is specifically made up of corresponding control chip and peripheral circuit.
Short-circuit detecting circuit 102 equally also connects with welding terminal, this circuit is made up of corresponding electric circuit inspection chip and peripheral short circuit, it detects the voltage and current that welding machine exports in real time in whole welding process, and reach control circuit 104 during fructufy by detection, and judge the whether short circuit of welding machine output loop with this.
Power control circuit 103, the source of welding current in its control connection concret iron electroslag pressure welder.This power control circuit 103 is made up of corresponding power control chip and peripheral short circuit, and it constantly regulates the output of the source of welding current in whole welding process, for electric arc during reinforcement welding provides corresponding energy.
Control circuit 104, it is the whole control core in system, form primarily of a corresponding control chip, it connects virtual voltage circuit 101, short-circuit detecting circuit 102, power control circuit 103, and coordinate the work that cooperatively interacts between them, control the steel bar flux press welding process of contactless spark.Be implemented as follows:
Control circuit 104, after opening welding machine electric power, first controls virtual voltage circuit 101 and exports a virtual voltage at welding terminal always; Control short-circuit detecting circuit 102 simultaneously and detect in real time the voltage and current that welding machine exports, and accept the voltage and current that welding machine that short-circuit detecting circuit 102 detects exports, and according to the whether short circuit of the output loop of this voltage and current data real-time judge welding machine.
After control circuit 104 judges the output loop short circuit of welding machine according to the voltage and current first time that short-circuit detecting circuit detects, control virtual voltage circuit 101 and virtual voltage is reduced to 0 volt, and after time delay a period of time, control power control circuit 103 to work, control the source of welding current by power control circuit 103 and export a little striking current.
According to the voltage and current that short-circuit detecting circuit 102 detects, control circuit 104 judges that the output loop of welding machine is non-shorting after, control power control circuit 103 and adjust source of welding current output welding current;
After control circuit 104 judges the output loop short circuit of welding machine according to the voltage and current second time that short-circuit detecting circuit 102 detects, the electric current that control power control circuit 103 adjusts source of welding current output reduces to 0.
The running of the control system of concret iron electroslag pressure welder in this programme is further illustrated (following technology contents as an example below by way of a concrete application example, do not limit this programme and only run following process), whole process as shown in Figure 2:
1, welding machine electric power is opened, control system 100 is started working, control circuit 104 in control system is after opening welding machine electric power, and control virtual voltage circuit 101 in the virtual voltage of welding terminal output lower than safe voltage, this virtual voltage is present in the output of welding machine all the time; Simultaneously control short-circuit detecting circuit 102 and detect in real time the voltage and current that welding machine exports, to judge the whether short circuit of welding machine output loop.
2, on-the-spotly to prepare: connected together (formation short-circuit condition) by two reinforcing bars to be welded, adjustment erecting and welding fixture, and filling flux, specifically can adopt common scheme, do not repeated herein.
3, the sources of welding current connected by two reinforcing bars: welding terminal is connected to reinforcing bar two ends, and now welding terminal voltage is virtual voltage, therefore the virtual voltage of output is applied on two reinforcing bars that connect together by welding machine, forms corresponding output loop; Now due to two bar connecting together, the voltage and current that the welding machine detected exports is reached control circuit 104 by short-circuit detecting circuit 102, by calculating, control circuit 104 determines that the output loop of welding machine is in short-circuit condition, virtual voltage is reduced to 0 volt by control virtual voltage circuit 101 by control circuit 104.Due to virtual voltage fan-out capability very little (being less than 1A), in the process switched on power, there will not be arc spark (mainly there will not be contact sparking between reinforcing bar and fixture).
4, after in first time, detection determines that the output loop of welding machine is in short-circuit condition, control circuit 104 time delay a period of time is (as 0.5S, this time is adjustable) after, control power control circuit 103 works by control circuit 104, control the source of welding current by power control circuit 103 and export a small area analysis (being generally 30A), for the starting the arc, because small area analysis can make the energy between two of short circuit reinforcing bars less, melting point minimum (even without melting point) between reinforcing bar.
5, two reinforcing bars pull open generation electric arc: pull open two reinforcing bars by fixture, make to produce electric arc between two reinforcing bars.The electric current now exported due to motor is a small area analysis (not welding current) (being generally 30A), and between reinforcing bar, melting point is minimum, and the power pulling open two reinforcing bars needs is also smaller, reduces labour intensity.
6, in electric arc production process, the voltage and current that short-circuit detecting circuit 102 detects welding machine output in real time reaches control circuit 104, after electric arc produces, the voltage and current that the welding machine detected exports is reached control circuit 104 by short-circuit detecting circuit 102, by calculating, control circuit 104 determines that the output loop of welding machine is in non-shorting state, control circuit 104 judges that the steel bar flux press welding starting the arc completes, and controls power control circuit 103 and adjusts source of welding current output welding current (being generally hundreds of ampere).
7, arc stage: the electric arc that welding current produces between two reinforcing bars, and the electric arc that ignites, reinforcing bar two ends are melted, namely by the electric arc that ignites, make solder melts around electric arc form hole, welding arc burns between two reinforcing bars thereupon, arc heat is by two end reinforced fusings, molten metal forms molten bath, and the solder flux of melting forms slag (slag bath), is covered on molten bath.
8, the pressure period: after reinforcing bar fusing amount reaches requirement, by fixture adjustment bar spacing from, distance is reduced, until two bar connecting are to together (even if welding machine output loop is short-circuit condition), and by fixture, certain pressure is added to two reinforcing bars.
9, in step (9), when two bar connecting are to time together, the voltage and current that the welding machine detected exports is reached control circuit 104 by short-circuit detecting circuit 102, by calculating, control circuit 104 determines that the output loop of welding machine is in short-circuit condition again, control circuit 104 judges that welding completes, and controls power control circuit 103 and adjusts the electric current that the source of welding current exports and reduce to 0A or reduce to a very small area analysis; The virtual voltage that output exports is reduced to 0 volt simultaneously.
10, output loop is disconnected: welding process completes, and welding machine can disconnect output loop; Now welding terminal still exports virtual voltage, and output loop electric current is 0, only has virtual voltage to work when deenergization, and virtual voltage fan-out capability very little (being less than 1A), there will not be arc spark in the process of deenergization.
11, welding slag solder flux is cleared up.
As from the foregoing, when the control system utilizing this programme to provide carries out steel bar flux press welding, also there is following features:
First, it is by exporting a virtual voltage all the time at the output of welding machine, and the fan-out capability due to virtual voltage is very little (being less than 1A), there will not be arc spark like this during welding in the process switched on power; Same, when welding completes, because output loop electric current is 0, only have virtual voltage to work during disconnection, virtual voltage fan-out capability very little (being less than 1A), also there will not be arc spark in the process of deenergization.Thus by this virtual voltage, whole welding process is produced without arc light, not only increases security, and avoid electric arc to burn fixture, improve the service life of fixture.
In addition, its output voltage of the virtual voltage in this programme, lower than safe voltage, further increases the security of whole welding process.
Moreover, forearc is being played in this programme, a little striking current (as 30A) is exported by welding machine, not welding current, makes the energy between two of short circuit reinforcing bars less, like this when the starting the arc, because between reinforcing bar, melting point is minimum, the power pulling open two reinforcing bars needs is also smaller, saves muscle power, reduces labour intensity.
More than show and describe general principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. a control system for concret iron electroslag pressure welder, is characterized in that, described control system comprises:
Virtual voltage circuit, described virtual voltage control circui connects welding terminal, exports a virtual voltage always, and when the short circuit of welding machine output loop, virtual voltage is reduced to 0 volt at welding terminal;
Short-circuit detecting circuit, described short-circuit detecting circuit connects with welding terminal, detects in real time the voltage and current that welding machine exports, and judges the whether short circuit of welding machine output loop with this;
Power control circuit, the source of welding current in described power control circuit control connection concret iron electroslag pressure welder, for electric arc during reinforcement welding provides energy;
Control circuit, described control circuit control connection virtual voltage circuit, short-circuit detecting circuit, power control circuit, and coordinate the work that cooperatively interacts between them, realize the steel bar flux press welding process of contactless spark.
2. the control system of a kind of concret iron electroslag pressure welder according to claim 1, is characterized in that, described control circuit, after opening welding machine electric power, controls virtual voltage circuit and exports a virtual voltage at welding terminal always; Control short-circuit detecting circuit simultaneously and detect the voltage and current that welding machine exports in real time, and judge the output loop whether short circuit of welding machine according to the voltage and current that short-circuit detecting circuit detects; After described control circuit judges the output loop short circuit of welding machine according to the voltage and current that short-circuit detecting circuit detects, control virtual voltage circuit and virtual voltage is reduced to 0 volt, and after time delay a period of time, control the power control circuit control source of welding current and export a little striking current;
Described control circuit then judges that the steel bar flux press welding starting the arc completes after judging that the output loop of welding machine is non-shorting according to the voltage and current that short-circuit detecting circuit detects, and controls the power control circuit adjustment source of welding current and exports welding current;
Described control circuit then judges that welding completes after again judging the output loop short circuit of welding machine according to the voltage and current that short-circuit detecting circuit detects, and the electric current controlling the output of the power control circuit adjustment source of welding current reduces to 0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420548823.3U CN204122897U (en) | 2014-09-23 | 2014-09-23 | A kind of control system of concret iron electroslag pressure welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420548823.3U CN204122897U (en) | 2014-09-23 | 2014-09-23 | A kind of control system of concret iron electroslag pressure welder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204122897U true CN204122897U (en) | 2015-01-28 |
Family
ID=52379286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420548823.3U Active CN204122897U (en) | 2014-09-23 | 2014-09-23 | A kind of control system of concret iron electroslag pressure welder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204122897U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259625A (en) * | 2014-09-23 | 2015-01-07 | 上海通用重工集团有限公司 | Control system of steel bar electro-slag pressure welding machine |
| CN112692426A (en) * | 2020-12-10 | 2021-04-23 | 韩振清 | Welding slag discharging device for electroslag pressure welding |
-
2014
- 2014-09-23 CN CN201420548823.3U patent/CN204122897U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259625A (en) * | 2014-09-23 | 2015-01-07 | 上海通用重工集团有限公司 | Control system of steel bar electro-slag pressure welding machine |
| CN104259625B (en) * | 2014-09-23 | 2016-04-20 | 上海通用重工集团有限公司 | A kind of control system of concret iron electroslag pressure welder |
| CN112692426A (en) * | 2020-12-10 | 2021-04-23 | 韩振清 | Welding slag discharging device for electroslag pressure welding |
| CN112692426B (en) * | 2020-12-10 | 2023-09-29 | 国网福建省电力有限公司明溪县供电公司 | Welding slag discharger for electroslag pressure welding |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102806425B (en) | Method for welding cathode flexible bus of aluminum electrolysis cell without series power failure | |
| CN203636230U (en) | Welding system workstation | |
| CN204122897U (en) | A kind of control system of concret iron electroslag pressure welder | |
| CN204122894U (en) | A kind of concret iron electroslag pressure welder | |
| CN104209627A (en) | Arc starting control mode of reinforcing steel bar electroslag pressure welder | |
| CN104475923A (en) | CO2 short circuiting welding synchronous pulse magnetic control device and method | |
| CN203109460U (en) | Electroslag welding structure of obliquely-arranged internal partition plate of box-type component | |
| CN101244488A (en) | Construction method for steel bar work down electro-slag pressure welding | |
| CN104259625B (en) | A kind of control system of concret iron electroslag pressure welder | |
| CN104209628B (en) | A kind of concret iron electroslag pressure welder | |
| CN203091930U (en) | Welding machine with short circuit electric arc molten drop control function | |
| CN103990900A (en) | Spot-weld machine special for anode steel claw | |
| KR101106952B1 (en) | Apparatus and operating method of dc inverter resistance spot welding connected with network for intelligence control and recording medium | |
| CN208644041U (en) | Electrolytic aluminum anodic steel claw row's weldering production equipment | |
| CN104227229B (en) | A kind of electric soldering method of the steel bar flux press welding of contactless spark | |
| CN207326219U (en) | Hydrogen-oxygen welding and arc welding all-in-one machine | |
| CN203541836U (en) | Medium-frequency inverting welding machine for automatic welding and shearing of copper braided wire | |
| CN203426580U (en) | Stator iron core argon arc welding mould | |
| CN204321408U (en) | A kind of electroslag welder | |
| CN201799783U (en) | Run-on plate and run-off plate for welding of fire-resisting non-metal material body | |
| CN103817429B (en) | Intelligent DC inversion formula concret iron electroslag pressure welder | |
| CN103949765A (en) | Production welding method for support rebar trapezoid beam of laneway | |
| CN107598403A (en) | Hydrogen-oxygen welding and arc welding all-in-one | |
| CN104227228A (en) | Construction method for welding anchor jaws of embedded parts by means of electric slag pressure welding | |
| CN202894547U (en) | Anti-sticking functional circuit for insulated grid bipolar transistor (IGBT) type high-frequency invert direct current (DC) electric welder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |