CN102925891B - Plasma cladding system - Google Patents
Plasma cladding system Download PDFInfo
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- CN102925891B CN102925891B CN201210448338.4A CN201210448338A CN102925891B CN 102925891 B CN102925891 B CN 102925891B CN 201210448338 A CN201210448338 A CN 201210448338A CN 102925891 B CN102925891 B CN 102925891B
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Abstract
The invention relates to the material processing field, and discloses a plasma cladding system comprising a welding gun, a controller, an operation machine, a plasma arc power supply, powder-feeding device and a water tank. The controller receives input parameters, converts the input parameters into corresponding control commands and current control commands, and respectively controls the operation machine and the plasma power supply so that the operation machine controls the welding fun to move correspondingly, and the plasma power supply outputs corresponding current. Meanwhile, the water tank cools the welding gun, and the powder-feeding device feeds powder to the welding gun. Therefore, according to preset motion parameters and current parameters, motion of the welding gun and energy of electric arc can be controlled, automation degree during a plasma cladding process is improved, manpower is reduced, and convenience and reliability of cladding operation are improved.
Description
Technical field
The present invention relates to material processing field, particularly relate to a kind of plasma cladding system.
Background technology
Develop rapidly along with modern industry, performance to engineering goods is also more and more higher, and a lot of components of machine need to be under high temperature, high pressure, high speed or supermatic condition, operation steady in a long-term, therefore, to manufacturing the material of this kind of component of machine, have higher requirement.But high performance material cost is often very high, in actual applications, most of component only require one deck of very thin surface to have high hardness, good wear-resisting and solidity to corrosion.In this case, utilize plasma melting coating technique, under the heating of high-energy-density beam-plasma, the skin layer of component is melted with the alloy adding as required simultaneously, form certain thickness surface melting layer, after rapid solidification, can obtain the component that satisfy condition, reduce the cost that configures high performance material.And this technology can also be applied to the reparation of surface failure part.Therefore, plasma melting coating technique has obtained fast development.
Plasma cladding system of the prior art, comprise Plasma Welding power supply, welding gun, powder conveyer, water cooling plant and mechanical clamp, when component are carried out to plasma cladding, described Plasma Welding power supply provides electric current for described welding gun, described powder conveyer provides needs cladding at the powdered alloy of described component surface, staff uses described mechanical clamp clamping to treat the component of cladding, by welding gun, produces arc-melting powdered alloy, and described component are carried out to cladding.
But, contriver finds in the application's research process, while realizing the cladding to component by described plasma cladding system of the prior art, need each several part coordinative operation, conventionally need many people co-operate, for example, need artificial hand torch, mechanical clamp, and control powder conveyer, labor intensive resource simultaneously.And the processing parameter in whole cladding process is more, strength of current, ion-gas flow, cladding speed, powder feed rate etc., all need mutual coordination, operation relative complex, and reliability is low.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of plasma cladding system, to solve, prior art exists when carrying out plasma cladding, labor intensive resource, complicated operation, the problem that cladding precision is low.Specific embodiments is as follows:
The invention discloses a kind of plasma cladding system, comprise welding gun, and comprise:
Controller, be used for receiving input operation and parameter, described input parameter comprises: control the kinematic parameter of welding gun motion and the current parameters of control cladding electric current, described input operation at least comprises powder feeding operation, and produce corresponding motion control instruction according to described kinematic parameter, according to described current parameters, produce corresponding current control instruction, the powder feeding operation of reception is converted into corresponding powder feeding steering order, wherein said kinematic parameter at least comprises: the rising or falling speed parameter of welding gun during cladding, cladding starts the lift height value of rear welding gun, described current parameters at least comprises: striking current value, arcing time, rise time, working current value, fall time, receive arc current value, receive the arc time,
Operating machine, is connected with described controller, and described operating machine is used for clamping described welding gun, and carries out corresponding operation according to the described motion control instruction of described controller transmission, to control described welding gun, carries out corresponding motion in cladding process;
Positioner, is connected with described controller, and described positioner is treated cladding workpiece for placing;
Plasma arc power supply, is connected with welding gun with described controller, and the current control instruction that described plasma arc power supply receives from described controller for basis, for described welding gun provides corresponding electric current;
Powder conveyer, is connected with described welding gun with described controller, for after receiving the powder feeding steering order of described controller transmission, is described welding gun powder feeding;
Water tank, is connected with described welding gun, and it is cooling that described water tank is used to described welding gun to carry out.
Preferably, described controller comprises:
Touch-screen, for receiving input operation and parameter;
Treater, for the described input operation receiving and parameter are converted into corresponding steering order, described steering order comprises: motion control instruction, current control instruction and powder feeding steering order.
In addition, described controller also comprises:
Control enclosure, be used for receiving input operation, described input operation comprises: operating machine input operation, positioner input operation and beginning, pausing operation, described operating machine input operation comprises: forward and backward motor performance, left and right motor performance and ascending, descending motor performance, described positioner input operation comprises: rotate and turning operation;
Described treater is connected with described control enclosure, also for the described input operation of the described control enclosure transmission receiving is converted into corresponding steering order, and transfer in corresponding operating machine, positioner, plasma arc power supply or powder conveyer, make it carry out corresponding operation.
Preferably, described kinematic parameter also comprises:
Swing parameter, described swing parameter comprises: flutter rate value and the wobble amplitude of welding gun during cladding.
Plasma cladding system disclosed by the invention, rely on controller to receive input parameter, and described input parameter is converted into corresponding motion control instruction and current control instruction, difference red-tape operati machine and plasma power supply, so that operating machine is controlled welding gun, carry out corresponding motion, make plasma power supply that corresponding electric current is provided.Meanwhile, be that described welding gun carries out cooling by water tank, powder conveyer is described welding gun powder feeding.Therefore, according to presetting kinematic parameter and current parameters, just can control the motion of welding gun and the electric weight of electric arc, level of automation is higher, thereby improves convenience and the reliability of cladding operation.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the pictorial diagram of the disclosed a kind of plasma cladding system of the embodiment of the present invention;
Fig. 2 is the interface schematic diagram of touch-screen in the disclosed a kind of plasma cladding system of the embodiment of the present invention;
Fig. 3 be in the disclosed a kind of plasma cladding system of the embodiment of the present invention current parameters interface schematic diagram is set.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The invention provides a kind of plasma cladding system, to solve, prior art exists when carrying out plasma cladding, labor intensive resource, complicated operation, the problem that cladding precision is low.Structural representation shown in Figure 1, described plasma cladding system comprises: controller 1, operating machine 2, positioner 3, plasma arc power supply 4, powder conveyer 5, water tank 6 and welding gun 7, wherein,
Described controller 1, be used for receiving input operation and parameter, described input parameter comprises: control the kinematic parameter of welding gun motion and the current parameters of control cladding electric current, described input operation at least comprises powder feeding operation, and produce corresponding motion control instruction according to described kinematic parameter, according to described current parameters, produce corresponding current control instruction, the powder feeding operation of reception is converted into corresponding powder feeding steering order, wherein said kinematic parameter at least comprises: the rising or falling speed parameter of welding gun during cladding, cladding starts the lift height value of rear welding gun, described current parameters at least comprises: striking current value, arcing time, rise time, working current value, fall time, receive arc current value, receive the arc time to control motion and the cladding electric current of described welding gun in cladding process.
In carrying out the process of cladding, when initial for the ease of the welding gun starting the arc, need described welding gun and treat that cladding workpiece remains on lower distance, but, in cladding process, the powder providing for fear of powder conveyer stops up the powder-feeding mouth of described welding gun 6, needs described welding gun and treats that the workpiece of cladding keeps 15-20mm distance, therefore need to be after the starting the arc, lifting welding gun accurately rapidly.In the prior art, in order to realize the lifting to described welding gun, need manual control, the application, by described controller 1 input motion parameter, at least comprises in described kinematic parameter: rising or falling speed and lift height, the setting to described rising or falling speed, can determine at welding gun described in the how long rear lifting of cladding operation beginning, setting to described lift height value, can determine the height to described welding gun lifting, thereby can control accurately the motion of welding gun.In addition, striking current value and the working current value in described current parameters, set have different effects.In carrying out plasma cladding process, welding gun is not easy the starting the arc, therefore need to first pass through back ground current, make described welding gun produce arc maintenance, and make the flame stream of arc maintenance contact workpiece, and using arc maintenance as conductor, become welding gun and the current path for the treatment of cladding workpiece, after forming current path, close arc maintenance, produce minor arc, i.e. working current, to melt packing material and partly to treat cladding workpiece, complete cladding.Therefore need to set striking current value and receive arc current value, and the rise time refers to and striking current need to be converted into the time that working current needs.After cladding completes, the process that electric arc knocks out is receiving arc.In order to ensure the security of cladding process, need to set and receive arc current value, and receive the time that arc needs.
In addition, when carrying out cladding, need to be welding gun powder feeding, therefore, described controller 1 need to receive powder feeding operation when cladding starts, and the powder feeding operation receiving is converted into corresponding powder feeding steering order, to control powder conveyer 5, carries out powder feeding operation.
Described operating machine 2 is connected with described controller 1, when workpiece is carried out to cladding, described operating machine 2 is for clamping described welding gun, and the corresponding operation of described motion control instruction execution of transmitting according to described controller, to control described welding gun, carries out corresponding moving in cladding process.
In actual applications, for welding gun can be moved flexibly, generally select three-dimensional manipulating machine, can realize the motion of welding gun X, Y, a Z3 direction, described three-dimensional manipulating machine comprises device stepper-motor, ball-screw and the rolling guide that clamps welding gun, wherein, described stepper-motor volume is little, moment is large, low frequency characteristic good, operation noise is low; Described ball-screw is actuated element, has high-precision advantage, and described drive-motor, rolling guide match, and can realize high-resolution driving, thereby can make described welding gun according to described motion control instruction, carry out corresponding operation accurately.
Described positioner 3 is connected with described controller 1, and described positioner 3 is for placing the workpiece for the treatment of cladding.
Described plasma arc power supply 4 is connected with described welding gun 7 with described controller 1, when carrying out cladding operation, the current control instruction that described plasma arc power supply 4 receives from described controller 1 for basis, for described welding gun provides corresponding electric weight, to complete cladding.
Described powder conveyer 5, is connected with welding gun 7 with described controller 1, and in cladding process, described powder conveyer 4, after receiving the powder feeding steering order of described controller transmission, is described welding gun 7 powder feedings.Described powder conveyer 5, by powder conveying pipe, is realized and being connected with described welding gun 7, by the power of the blowing effect of gas, powder is sent into described welding gun 7, and the powder-feeding nozzle of described welding gun 7 is exported powder, melts, to realize cladding under arcing.
Described water tank 6 is connected with described welding gun 7, is used to described welding gun 7 to carry out cooling.In cladding process, during the excess Temperature of described welding gun 7, or after cladding finishes, need to carry out cooling for described welding gun 7.Described water tank 6 has rising pipe and return water pipe, described welding gun 7 is being carried out when cooling, the rising pipe of described water tank 6 is connected with the water inlet pipe of described welding gun 7, current in described water tank 6 are after the water-cooling channel of described welding gun 6 inside, again by the rising pipe of described welding gun 7, from the return water pipe of described water tank 6, flow back to described water tank 6, thereby form loop by the water-cooling channel in rising pipe, return water pipe and the described welding gun 7 of described water tank 6, realized cooling to described welding gun 6.
Above-mentioned disclosed plasma cladding system, when workpiece is carried out to cladding, receives input parameter by described controller 1 in advance, and described input parameter is converted into corresponding motion control instruction, current control instruction and powder feeding steering order.Described operating machine 2 receives after described motion control instruction, control described welding gun 7 and carry out corresponding motion, described in described positioner 3 is fixing, treat cladding workpiece, and described plasma arc power supply 4 can be according to described current control instruction, for described welding gun 7 provides corresponding electric current.Meanwhile, described water tank 6 carries out coolingly for described welding gun 7, and described powder conveyer 5, under the control of controller 1, is described welding gun 7 powder feedings.Therefore, according to presetting kinematic parameter and current parameters, just can control the motion of welding gun 6 and the electric weight of electric arc, thereby improve convenience and the reliability of cladding operation.
Wherein, described controller 1 comprises: touch-screen and treater, the interface of described touch-screen as shown in Figure 2, for receiving staff's input operation and parameter; Figure 3 shows that the interface that arranges of current parameters in touch-screen, for the current parameters of cladding process is set.Described treater, for the described input operation receiving and parameter are converted into corresponding steering order, described steering order comprises: motion control instruction, current control instruction and powder feeding steering order.Specifically, kinematic parameter is converted into corresponding motion control instruction, described current parameters is converted into current control instruction, the powder feeding operation receiving is converted into powder feeding steering order, thereby controls the motion conditions of welding gun 6 and the curent change of cladding in cladding process.Described treater generally can adopt programmable logic controller (Programmable Logic Controller, PLC), can certainly adopt other forms of treater, and the present invention does not limit.
In addition, described controller 1 can also comprise: control enclosure, described control enclosure is used for receiving input operation, described input operation comprises: operating machine input operation, positioner input operation and beginning, pausing operation, described operating machine input operation comprises: forward and backward motor performance, left and right motor performance or ascending, descending motor performance, described positioner input operation comprises: rotate or turning operation;
In this case, described treater is connected with described control enclosure, also for the described input operation of the described control enclosure transmission receiving is converted into corresponding steering order, and transfer in corresponding operating machine, positioner, plasma arc power supply or powder conveyer, make it carry out corresponding operation.For example, receiving operating machine input operation, be converted into corresponding operating machine steering order, and transferring to operating machine 2, by described operating machine 2, carrying out the motion of corresponding all around or lifting, thereby adjust the position of the welding gun of clamping on described operating machine 2; After receiving the input operation of described positioner machine, be translated into corresponding positioner steering order, and transfer to positioner 3, by described positioner 3, according to described positioner steering order, carry out corresponding rotating operation or turning operation, to adjust the position for the treatment of cladding workpiece; When receiving beginning or pausing operation, described treater is translated into and starts accordingly steering order or suspend steering order, and transmits it to plasma arc power supply 4, controls the arc maintenance of plasma arc power supply and the opening and closing of minor arc.
In addition, in described control enclosure, can also receive the input operation to powder conveyer, described treater is after receiving beginning or pausing operation, be converted into and start accordingly powder feeding instruction or finish powder feeding instruction, and transfer to powder conveyer, thereby control powder conveyer, carry out the operation that starts powder feeding or the operation that finishes powder feeding.
In cladding process, first utilize the motion of control enclosure red-tape operati machine 2, adjust the position of welding gun 7, utilize the rotation of positioner 3 and the position that turn over function is adjusted workpiece, to be prepared when ready, by control enclosure, control plasma arc power supply and carry out open operation, and powder conveyer starts powder feeding operation, carry out plasma cladding.When cladding, may break down because of a variety of causes, in this case, described control enclosure receives the pausing operation of staff's input, and by described treater, described pausing operation is converted into corresponding pause instruction, and described pause instruction is transferred to described operating machine 2, plasma arc power supply 4 and powder conveyer 5, to suspend cladding operation.
In addition, consider and treat the workpiece of cladding likely cross-sectional area is larger, in this case, by the touch-screen of described controller 1, the kinematic parameter of input also comprises: swing parameter, described swing parameter comprises: flutter rate value and the wobble amplitude of welding gun during cladding.Described treater can be converted into corresponding swing instruction by described swing parameter, and by described swing command to described operating machine 2 so that the welding gun that described operating machine 2 is controlled clamping is carried out corresponding oscillating motion, thereby can fully to workpiece, realize cladding.
Plasma cladding system disclosed in this invention, comprises welding gun, controller, operating machine, positioner, plasma arc power supply, powder conveyer and water tank.By relying on controller to receive input parameter, and described input parameter is converted into corresponding motion control instruction and current control instruction, red-tape operati machine and plasma power supply, carry out corresponding motion so that operating machine is controlled welding gun respectively, makes plasma power supply that corresponding electric current is provided.Meanwhile, be that described welding gun carries out cooling by water tank, powder conveyer is described welding gun powder feeding.Therefore, according to presetting kinematic parameter and current parameters, just can control the motion of welding gun and the electric weight of electric arc, thereby improve convenience and the reliability of cladding operation.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. a plasma cladding system, comprises welding gun, it is characterized in that, comprising:
Controller, be used for receiving input operation and parameter, described input parameter comprises: control the kinematic parameter of welding gun motion and the current parameters of control cladding electric current, described input operation at least comprises powder feeding operation, and produce corresponding motion control instruction according to described kinematic parameter, according to described current parameters, produce corresponding current control instruction, the powder feeding operation of reception is converted into corresponding powder feeding steering order, wherein said kinematic parameter at least comprises: the rising or falling speed parameter of welding gun during cladding, cladding starts the lift height value of rear welding gun, described current parameters at least comprises: striking current value, arcing time, rise time, working current value, fall time, receive arc current value, receive the arc time, to control motion and the cladding electric current of described welding gun in cladding process,
Operating machine, is connected with described controller, and described operating machine is used for clamping described welding gun, and carries out corresponding operation according to the described motion control instruction of described controller transmission, to control described welding gun, carries out corresponding motion in cladding process;
Positioner, is connected with described controller, and described positioner is treated cladding workpiece for placing;
Plasma arc power supply, is connected with welding gun with described controller, and the current control instruction that described plasma arc power supply receives from described controller for basis, for described welding gun provides corresponding electric current;
Powder conveyer, is connected with described welding gun with described controller, for after receiving the powder feeding steering order of described controller transmission, is described welding gun powder feeding;
Water tank, is connected with described welding gun, and it is cooling that described water tank is used to described welding gun to carry out.
2. system according to claim 1, is characterized in that, described controller comprises:
Touch-screen, for receiving input operation and parameter;
Treater, for the described input operation receiving and parameter are converted into corresponding steering order, described steering order comprises: motion control instruction, current control instruction and powder feeding steering order.
3. system according to claim 2, is characterized in that, described controller also comprises:
Control enclosure, be used for receiving input operation, described input operation comprises: operating machine input operation, positioner input operation and beginning, pausing operation, described operating machine input operation comprises: forward and backward motor performance, left and right motor performance or ascending, descending motor performance, described positioner input operation comprises: rotate or turning operation;
Described treater is connected with described control enclosure, also for the described input operation of the described control enclosure transmission receiving is converted into corresponding steering order, and transfer in corresponding operating machine, positioner, plasma arc power supply or powder conveyer, make it carry out corresponding operation.
4. system according to claim 1, is characterized in that, described kinematic parameter also comprises: swing parameter, described swing parameter comprises: flutter rate value and the wobble amplitude of welding gun during cladding.
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| CN201210448338.4A CN102925891B (en) | 2012-11-09 | 2012-11-09 | Plasma cladding system |
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| CN201210448338.4A CN102925891B (en) | 2012-11-09 | 2012-11-09 | Plasma cladding system |
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| CN102925891B true CN102925891B (en) | 2014-10-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103223596A (en) * | 2013-05-15 | 2013-07-31 | 山西潞安煤炭技术装备有限责任公司 | Micro-arc plasma cladding and machining integrated device for hydraulic support piston rod |
| CN106011842A (en) * | 2016-06-23 | 2016-10-12 | 南通东方科技有限公司 | Plasma cladding equipment |
| CN110977122A (en) * | 2019-12-24 | 2020-04-10 | 中国人民解放军陆军装甲兵学院 | Automatic plasma cladding system for equipment part large-scale repair |
| CN111558717B (en) * | 2020-05-19 | 2023-04-28 | 中国人民解放军火箭军工程大学 | Spare part micro-arc pulse plasma rapid additive manufacturing device and method |
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| CN1804127A (en) * | 2005-12-14 | 2006-07-19 | 东方汽轮机厂 | Steam turbine valve manifold stellite alloy plasma spray welding method and equipment |
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| CN1804127A (en) * | 2005-12-14 | 2006-07-19 | 东方汽轮机厂 | Steam turbine valve manifold stellite alloy plasma spray welding method and equipment |
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