CN109676287A - A kind of adjustable welding cooling system of flexibility runner - Google Patents
A kind of adjustable welding cooling system of flexibility runner Download PDFInfo
- Publication number
- CN109676287A CN109676287A CN201910029660.5A CN201910029660A CN109676287A CN 109676287 A CN109676287 A CN 109676287A CN 201910029660 A CN201910029660 A CN 201910029660A CN 109676287 A CN109676287 A CN 109676287A
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- China
- Prior art keywords
- coolant
- red copper
- cooling
- coolant liquid
- copper key
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/003—Cooling means
Abstract
The invention discloses a kind of flexible runner welding clamping cooling systems.System specifically includes that the red copper key clamping device with flexible coolant flow channel, coolant liquid inflow catheter, and coolant liquid flows out conduit, water circulating pump station, intelligent controller, coolant liquid heat-exchanger tank and closed feedback control system etc..Present invention is mainly applied to the cooling adjustings of the clamping of aircraft engine blade or ultra-thin alloy curved sheets REPAIR WELDING.Rapid cooling can be carried out when being welded using the present invention by the runner inside moveable red copper key, and controllable adjustment can be carried out to cooling system according to the process requirements of different-alloy blade.The cooling liquid flowing channel of system is arranged in independent red copper key, the soft readjustment that can be radiated with the mobile realization of red copper key, to remain to cooling by the short distance of folder curved surface alloy, and parameter setting can be carried out to intelligent controller, cooperation sensing data Real-time Feedback adjusts the parameters such as cooling liquid speed, temperature and pressure in welding process and realizes that closed loop dynamically controls in real time, reaches expected cooling requirements.The present invention effectively can promote and control cooling rate, and the REPAIR WELDING effect for promoting the ultra-thin alloy of curved surface to aeronautical maintenance field is of great significance.
Description
Technical field
The invention belongs to aeronautical maintenance technical fields, more particularly to a kind of flexible adjustable welding cooling system of runner.
Background technique
Aero-engine compressor blade works under the complex environment of high temperature and high pressure synergy for a long time, and blade is frequent
Various different degrees of damages occur.There is the extensive market demand to repair with the damaged blade for repairing value,
Approved by industry.Microbeam pulsed plasma arc welding (MPAW) good arc stability under low current makes it be very suitable to weld
Ultra-thin alloy is connect, is the mainstream means of current blade REPAIR WELDING.Bath temperature is higher when due to welding, and titanium alloy blade holds very much
The easily impurity such as sucking N, H, O, influence welding quality.It can not achieve the effect that completely isolated, use using inert gas shielding
Vacuum welding Environmental costs are higher, and the structure of certain automatic welding guns and the method for operation are not easy to implement.For ultra-thin titanium alloy
Bead weld repair increases fixture cooling velocity to reach better welding quality, can be effectively reduced welding section 250 DEG C with
Upper residence time reduces the sucking of impurity.In addition, the formation of α-Ti can also be promoted by accelerating cooling velocity, weldering is effectively promoted
Connect quality.And for nickel-base alloy, adjusting control cooling rate can control the precipitation ratio of Nb in alloy, after influencing welding
Toughness and intensity.Therefore, for different-alloy blade, it is desirable that in the welding process being capable of regulation and control cooling rate.
Further, since the thermal coefficient of titanium alloy and nickel-base alloy is all very low, molten bath is conducted outwardly by base material
Heat transfer effect is poor, and needing to design welding runner keeps fluid heat transfer offset more closer better from molten bath.Secondly as blade is all tool
Cambered free form surface is needed to clamp blade using a kind of flexible clamping structure, makes clamping face and leaf in clamping
Piece has good contact compactness, is conducive to the heat exchange in molten bath.Therefore it needs one kind that there is flexible clamping and can carry out soft
Property heat dissipation adjust cooling system.
Summary of the invention
To solve the above-mentioned problems, it is an object of the invention to solve the control problem in welding procedure to temperature,
The difficulty for overcoming temperature condition to influence processing quality solves the deficiency of existence conditions, provides a kind of intelligent, efficient, automatic
The adjustable welding cooling system of flexible runner.
Mainly it is made of clamp mechanism, automatic cooling control system two parts；Clamp mechanism includes clamping fixture table (1), fixture
Clamping device fixed beam (2) and slide rail (29) are installed, slide rail end is equipped with set lever (3), weld clip on platform
It holds mechanism to be mounted on slide rail, welding clamping device includes symmetrically arranged two clamping piece mounting bases, clamping piece installation
Seat can be moved along slide rail, be fixedly installed with respectively in clamping piece mounting base symmetrically arranged by multiple independent heat dissipation red coppers
Key composition flexible clamping structure (in 36 dotted line frames), heat dissipation red copper key inside be equipped with coolant flow channel (39), heat dissipation red copper key with
It is provided between clamping piece mounting base holddown spring (20,20-1,21,21-1), the coolant flow channel between the red copper key that radiates, which is connected, to be connected
It connects；Automatic cooling control system includes coolant conveying cavity (4,18,5,17), coolant recirculation pump station (6), coolant liquid heat-exchanger tank
(10), temperature sensor (26), control pipeline (7,7-1,11,13) and intelligent controller (12), temperature sensor real-time detection
Weldment temperature, is sent to intelligent controller, and intelligent controller controls coolant temperature, flow velocity and pressure, inputted by coolant liquid
Pipeline (18,4) and output pipe (17,5) adjust the heat dissipation of red copper key to the coolant liquid of the alternating temperature of heat dissipation red copper key conveying circulation
Rate.
Red copper key (32,33,34,35) with coolant flow channel is symmetrically distributed, and flexible adjustable cooling system is symmetrical
Two cooling circuits are set.
Coolant line disengaging liquid interface (37,38) between each heat dissipation red copper key is using flexible elbow (22) and adjacent copper
The interface tandem of key connects, and cooperation holddown spring (20,21,20-1,21-1) realizes that flexible fitting target repairs thin plate (25), reaches
To the target for the uniform flexible adjustable that radiates.
The red copper key that radiates have telescopic coolant liquid inflow catheter (23,28) and scalable coolant liquid flow out conduit (19,
31), scalable inflow catheter (23,28) and scalable outflow conduit (19,31) use copper tube, with feed line (18,4)
It is equipped with and is slidingly sealed between outflow pipeline (17,5), feed line (18,4) and outflow pipeline (17,5) can be with heat dissipations
Red copper key is mobile and stretches, and keeps sealing attribute.
Coolant liquid unilateral side circuit by coolant flow channel (39) inside red copper key, coolant liquid inflow and outflow telescoping catheter (19,23),
Coolant liquid feed line (17), outflow pipeline (18), coolant recirculation pump station (6-1) and coolant liquid heat-exchanger tank (10) group
At realizing the unilateral circulation loop of cooling system；Symmetrically, the coolant flow channel inside other side red copper key is flowed by coolant liquid
Flow out telescoping catheter (31,28) and coolant liquid feed line, outflow pipeline (4,5), coolant recirculation pump station (6) and coolant liquid
Heat-exchanger tank (10) connection, realizes the other side circulation loop of cooling system.
Outside inputs the coolant liquid of specific temperature to heat-exchanger tank by the coolant inlet pipe road (14) of heat-exchanger tank
(10), it and by coolant output tube road (15) by the coolant liquid for playing supercooling effect is exported from heat-exchanger tank (10), shape
At external coolant liquid circulation loop.
The adjustable welding cooling system of flexibility runner provided by the invention can accurately automatically control cooling temperature in process
The variation of degree, reaches the specific temperature control requirement during ultra-thin alloy REPAIR WELDING, and the welding for improving ultra-thin alloy is repaired
Compound body amount.
Detailed description of the invention
Fig. 1 is system integral planar layout drawing of the invention
Fig. 2 is partial enlarged view when clamp structure of the invention clamps curved surface
Fig. 3 is clamp structure of the present invention and cooling line Local map
Fig. 4 is overall effect figure of the invention
Fig. 5 is control principle block diagram of the invention
Fig. 6 is heat dissipation red copper bond structure sectional view of the invention
Specific embodiment
With reference to the accompanying drawing with specific implementation case to the adjustable welding cooling system of flexible runner provided by the invention into
Row is described in detail.
Clamp mechanism includes clamping fixture table 1, clamping device fixed beam 2 and slide rail 29 is equipped on clamping fixture table, sliding is led
Rail end is equipped with set lever 3, and welding clamping device is mounted on slide rail, and welding clamping device includes symmetrically arranged two
A clamping piece mounting base, clamping piece mounting base can be moved along slide rail, be fixedly installed with respectively in clamping piece mounting base symmetrical
The flexible clamping structure being made of multiple independent heat dissipation red copper keys being arranged, heat dissipation red copper key inside are equipped with coolant flow channel 39,
Holddown spring 20,20-1,21,21-1 are provided between heat dissipation red copper key and clamping piece mounting base, the cooling between the red copper key that radiates
Runner is connected in series；Automatic cooling control system includes coolant conveying cavity 4,18,5,17, coolant recirculation pump station 6, coolant liquid heat
Exchange pond 10, temperature sensor 26, control pipeline 7,7-1,11,13 and intelligent controller 12, the weldering of temperature sensor real-time detection
Part temperature, is sent to intelligent controller, and intelligent controller controls coolant temperature, flow velocity and pressure, passes through coolant inlet pipe
Road 18,4 and output pipe 17,5 adjust the rate of heat dispation of red copper key to the coolant liquid of the alternating temperature of heat dissipation red copper key conveying circulation.
Further, clamping element mounting base top is equipped with groove, and the moveable heat dissipation red copper key is equipped in groove, is dissipated
Hot red copper key can be moved along the direction vertical with workpiece in a groove, and groove upper surface is fixed with the fixed cover board 24,27 of heat dissipation.
Coolant liquid in heat dissipation red copper key flows out conduit 4,18 by coolant liquid and separately flows into coolant recirculation pump station 6,6-1, then by even
It connects coolant recirculation pump station and enters coolant liquid heat-exchanger tank 10, coolant liquid exchanges pond and connect with external cooling fluid supply station, passes through
The coolant liquid of heat exchange flows into coolant recirculation pump station, then flows into the cooling of heat dissipation red copper key via coolant liquid inflow catheter stream and flow
Road realizes that the temperature to heat dissipation red copper key is adjusted.
Intelligent controller 12 passes through the temperature that the temperature sensor real-time detection workpiece of heat dissipation red copper key end is arranged in, and leads to
Supercooling system control lines 7,11,7-2 control heat-exchanger tank are output to coolant temperature, pressure and the stream of heat dissipation red copper key
Speed realizes the control to heat dissipation red copper key temperature.
Heat-exchanger tank 10 is connected to external cooling fluid supply station by coolant inlet pipe road 14 and output pipe 15, and heat is handed over
Pond is changed with ventilation opening.There is heat dissipation red copper key telescopic coolant liquid inflow catheter 23,28 and the outflow of scalable coolant liquid to lead
Pipe 19,31, radiate red copper key between by flexible connection bend pipe 22 be connected in series, heat dissipation red copper key and clamping piece mounting base it
Between have holddown spring, pass through holddown spring adjust heat dissipation red copper key and latten to be repaired 25 between clamping force.
Cooling system coolant line is arranged in the folder of the compositions such as moveable multiple independent red copper keys 32,33,34,35
It holds among mechanism, is calculated by a large amount of Welding experiments early period and heat transfer modeling and simulating, runner positions and dimensions have been carried out accurately
Design.Cooling effect is more efficient in time；Furthermore coolant liquid inflow catheter and the inflow and outflow mouth for flowing out conduit and red copper key
37,38 using flexible connection, not will receive the mobile influence of red copper key, red copper key circuit is flexibly connected the cooperation of bend pipe 22 and compresses bullet
Spring can realize flexible fitting latten to be repaired, reach the target for the uniform flexible adjustable that radiates.
The adjustable welding cooling system of the flexible runner, clamp structure is symmetrical structure, with coolant flow channel
Red copper key etc. is symmetrically distributed, two cooling circuits of flexible adjustable cooling system symmetric design.
The adjustable welding cooling system of the flexible runner, the coolant line between red copper key and red copper key is using soft
Property bend pipe connection, cooperation holddown spring realizes that flexible fitting target repairs thin plate, reaches the mesh for the uniform flexible adjustable that radiates
Mark.
The adjustable welding cooling system of the flexible runner, the runner of each red copper key are connected using cascade, thus
Guarantee that pressure and flow velocity are equal, coolant liquid is flowed by scalable inflow catheter 23,28 respectively, by scalable outflow conduit 19 and 31
Outflow.
Scalable inflow catheter 23,28 and scalable outflow conduit 19 and 31 use copper tube, respectively with feed line 4,
It is equipped with and is slidingly sealed between 18 and outflow pipeline 5,17, can be mobile and flexible with red copper key, and keep sealing attribute.
Coolant liquid unilateral side circuit is by coolant flow channel 39 inside red copper key, coolant liquid inflow and outflow telescoping catheter 19,23, cooling
Liquid feed line 18, outflow pipeline 17, coolant recirculation pump station 6-1 and coolant liquid heat-exchanger tank 10 form, and realize cooling system
The unilateral circulation loop of system；Symmetrically, the coolant flow channel inside other side red copper key passes through coolant liquid inflow and outflow telescoping catheter
31,28 and coolant liquid feed line 4, outflow pipeline 5, coolant recirculation pump station 6 and coolant liquid heat-exchanger tank 10 connect, it is real
The other side circulation loop of existing cooling system.
The coolant inlet pipe road 14 that outside passes through heat-exchanger tank inputs the coolant liquid of specific temperature to heat-exchanger tank 10, and
The coolant liquid for playing supercooling effect is exported from heat-exchanger tank 10 by coolant output tube road 15, forms external coolant liquid
Circulation loop.
Temperature sensor 26, water circulating pump station 6,10 intelligent controller 12 of 6-1 coolant liquid heat-exchanger tank and the control line
Road 7,7-1,11 collectively constitute automatic cooling control system, can automatically adjust temperature, flow velocity, pressure according to welding procedure demand
Power, and welding parameter is sent in welding main control computer according to the weldment real time temperature monitored in the welding process.
The coolant liquid that the heat-exchanger tank of cooling system setting can provide specific temperature carries out insulation effect to clamping device.
When needing to keep a certain temperature during the work time, proper temperature coolant liquid can be inputted, coolant liquid is persistently flowed through red copper key
Achieve the effect that keep specific temperature.System can serve as heat insulation system at this time.As shown in figure 5, being flexible stream of the invention
The flow diagram of the adjustable welding cooling system in road, circuit and control system circuit including coolant liquid.
It is illustrated by taking aero-engine compressor blade as an example.The reparation of system is using steps are as follows:
(1) before carrying out blade reparation, according to installation system shown in Fig. 1, and by the route of intelligent controller and outside
Welding control computer is connected；The supply of coolant liquid heat-exchanger tank and recovery pipe are connected with external supply station, temperature passes
Sensor works normally.
(2) weldment is correctly clamped among red copper key, as shown in Figure 2, and respective vanes model input control is electric
Brain center, intelligent controller are started to work according to the instruction of control computer, are inputted the coolant liquid and speed of matched temperature, are started
It is welded.
(3) for welding gun when being worked, the bath temperature data that temperature sensor monitors constantly feed back to control centre
Computer, control centre's computer compare measurement data and material welding parameter, generate feedback adjustment signal and are distributed to intelligent control
Device, intelligent controller carry out the automatic adjustment of coolant temperature and speed according to control pcs signal, for titanium alloy blade, such as
Fruit bath temperature is higher than some setting range of phase transition temperature or more, then accelerates flow velocity and reduce the inlet temperature of coolant liquid, make
Turbulent heat transfer enhances in runner, and for Ni-base Alloy Blades, flow velocity and coolant liquid temperature can also be increased or decreased according to process requirements
Degree controls the precipitation ratio of Nb to form the closed-loop control of rate of heat dispation.Coolant liquid is passed through inside each red copper key,
The contact surface of red copper key front end and blade nearby carries out short distance heat exchange, quickly takes away the heat in molten bath.In entire welding process
In, measuring signal is constantly transferred to control computer by sensor, and control computer is compared according to temperature parameter again to intelligent control
Device issues new adjustment signal, such process repeatedly, until welding region temperature reaches ideal temperature range.
(4) in the welding process, external cooling fluid supply passes through coolant inlet pipe road and output pipe respectively and hands over to heat
Pond supply and recycling coolant liquid are changed, coolant liquid forms circulation in heat-exchanger tank, circulating pump and red copper key cooling circuit, realizes
The cooling heat spreading function of welding.
Claims (6)
1. a kind of adjustable welding cooling system of flexibility runner, mainly by clamp mechanism, automatic cooling control system two parts group
At；Clamp mechanism includes clamping fixture table (1), clamping device fixed beam (2) and slide rail (29) is equipped on clamping fixture table, sliding is led
Rail end is equipped with set lever (3), and welding clamping device is mounted on slide rail (29), and welding clamping device includes symmetrically setting
The two clamping piece mounting bases set, clamping piece mounting base can be moved along slide rail, be fixedly mounted respectively in clamping piece mounting base
By the symmetrically arranged flexible clamping structure being made of multiple independent heat dissipation red copper keys, cooling stream is equipped with inside heat dissipation red copper key
Road (39) radiates and is provided with holddown spring (20,20-1,21,21-1) between red copper key and clamping piece mounting base, and radiate red copper key
Between coolant flow channel be connected in series；Automatic cooling control system includes coolant conveying cavity (4,18,5,17), coolant recirculation pump station
(6), coolant liquid heat-exchanger tank (10), temperature sensor (26), control pipeline (7,7-1,11,13) and intelligent controller (12),
Temperature sensor real-time detection weldment temperature, is sent to intelligent controller, and intelligent controller controls coolant temperature, flow velocity and pressure
Power passes through the cooling for the alternating temperature that coolant inlet pipe road (18,4) and output pipe (17,5) are recycled to heat dissipation red copper key conveying
Liquid adjusts the rate of heat dispation of red copper key.
2. the adjustable welding cooling system of flexibility runner according to claim 1, it is characterised in that: with coolant flow channel
Red copper key (32,33,34,35) is symmetrically distributed, and flexible adjustable cooling system is symmetrical arranged two cooling circuits.
3. the adjustable welding cooling system of flexibility runner according to claim 1, it is characterised in that: each heat dissipation red copper key it
Between coolant line disengaging liquid interface (37,38) connect with the interface tandem of adjacent copper key using flexible elbow (22), cooperation
Holddown spring (20,21,20-1,21-1) realizes that flexible fitting target repairs thin plate (25), and it is adjustable to reach the uniform flexibility of heat dissipation
The target of section.
4. the adjustable welding cooling system of flexibility runner according to claim 3, it is characterised in that: heat dissipation red copper key has
Telescopic coolant liquid inflow catheter (23,28) and scalable coolant liquid outflow conduit (19,31), scalable inflow catheter (23,
28) and scalable outflow conduit (19,31) uses copper tube, installs between feed line (18,4) and outflow pipeline (17,5)
It is slidingly sealed, feed line (18,4) and outflow pipeline (17,5) can be mobile and flexible with heat dissipation red copper key, and keep
Seal attribute.
5. the adjustable welding cooling system of flexible runner according to claim 3, it is characterised in that: coolant liquid unilateral side circuit by
Coolant flow channel (39) inside red copper key, coolant liquid inflow and outflow telescoping catheter (19,23), coolant liquid feed line (17), outflow
Pipeline (18), coolant recirculation pump station (6-1) and coolant liquid heat-exchanger tank (10) composition realize the unilateral circulation of cooling system
Circuit；Symmetrically, the coolant flow channel inside other side red copper key passes through coolant liquid inflow and outflow telescoping catheter (31,28) and cooling
Liquid feed line, outflow pipeline (4,5), coolant recirculation pump station (6) and coolant liquid heat-exchanger tank (10) connection, realize cooling
The other side circulation loop of system.
6. the adjustable welding cooling system of flexibility runner according to claim 1, it is characterised in that: outside passes through heat exchange
The coolant liquid of coolant inlet pipe road (14) the input specific temperature in pond passes through coolant output tube road to heat-exchanger tank (10)
(15) the coolant liquid output from heat-exchanger tank (10) that will play supercooling effect, forms external coolant liquid circulation loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910029660.5A CN109676287A (en) | 2019-01-11 | 2019-01-11 | A kind of adjustable welding cooling system of flexibility runner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910029660.5A CN109676287A (en) | 2019-01-11 | 2019-01-11 | A kind of adjustable welding cooling system of flexibility runner |
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| CN109676287A true CN109676287A (en) | 2019-04-26 |
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| CN201910029660.5A Pending CN109676287A (en) | 2019-01-11 | 2019-01-11 | A kind of adjustable welding cooling system of flexibility runner |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128694A (en) * | 2014-07-24 | 2014-11-05 | 江门市新会区同达化工机械制造有限公司 | Longitudinal seam red copper liner welding process of steel sheet pressure vessel and red copper liner used by same |
| CN204747880U (en) * | 2015-06-26 | 2015-11-11 | 中国民航大学 | Liftable flexible anchor clamps are restoreed in blade build -up welding |
| CN105108391A (en) * | 2015-09-14 | 2015-12-02 | 无锡市创新化工设备有限公司 | Heat resisting device for copper part welding |
| CN107052597A (en) * | 2016-12-20 | 2017-08-18 | 江苏大学 | A kind of method for laser welding and device for making up dissimilar metal welding line bath temperature difference |
| KR20170132393A (en) * | 2016-05-23 | 2017-12-04 | 주식회사 포스코 | Spot welding test apparatus |
-
2019
- 2019-01-11 CN CN201910029660.5A patent/CN109676287A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128694A (en) * | 2014-07-24 | 2014-11-05 | 江门市新会区同达化工机械制造有限公司 | Longitudinal seam red copper liner welding process of steel sheet pressure vessel and red copper liner used by same |
| CN204747880U (en) * | 2015-06-26 | 2015-11-11 | 中国民航大学 | Liftable flexible anchor clamps are restoreed in blade build -up welding |
| CN105108391A (en) * | 2015-09-14 | 2015-12-02 | 无锡市创新化工设备有限公司 | Heat resisting device for copper part welding |
| KR20170132393A (en) * | 2016-05-23 | 2017-12-04 | 주식회사 포스코 | Spot welding test apparatus |
| CN107052597A (en) * | 2016-12-20 | 2017-08-18 | 江苏大学 | A kind of method for laser welding and device for making up dissimilar metal welding line bath temperature difference |
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Application publication date: 20190426 |