CN106513962A - Synchronous hot-pressing-laser welding resistance hot pressing device - Google Patents
Synchronous hot-pressing-laser welding resistance hot pressing device Download PDFInfo
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- CN106513962A CN106513962A CN201611156220.9A CN201611156220A CN106513962A CN 106513962 A CN106513962 A CN 106513962A CN 201611156220 A CN201611156220 A CN 201611156220A CN 106513962 A CN106513962 A CN 106513962A
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- welding
- resistance
- hot
- pressing
- laser welding
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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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/02—Pressure butt welding
-
- 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/36—Auxiliary equipment
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
Abstract
The invention provides a synchronous hot-pressing-laser welding resistance hot pressing device which comprises a power source, control equipment, a level switch, a resistance welding transformer, a welding workbench, a pressurization mechanism and an electrode arm unit, wherein the power source, the level switch, the resistance welding transformer and the electrode arm unit are sequentially and electrically connected to form a welding loop. The control equipment controls the pressurization mechanism to apply pressure to a weld test piece through the electrode arm unit. The welding workbench comprises a bottom plate, a power mechanism and a sliding table mechanism. The power mechanism drives the sliding table mechanism to drive the weld test piece to move back and forth. According to the synchronous hot-pressing-laser welding resistance hot pressing device, preheating and pressurization of a welding circuit system are integrated, and the defect that preheating and pressurization cannot be achieved simultaneously during non-synchronous laser-resistance welding is overcome, so that the absorption rate of metal materials to lasers is increased, the needed laser power is reduced, crystallization conditions of weld joints are improved, defects such as pores and hot cracks are reduced, and the synchronous hot-pressing-laser welding resistance hot pressing device can be widely applied to materials with high reflection rate, such as aluminum and magnesium.
Description
Technical field
The present invention relates to welding technology field, more particularly to a kind of resistance hot-press arrangement of synchronous hot pressing-Laser Welding.
Background technology
Laser welding technology have high speed, low deformation, flexibility the characteristics of, be most development potentiality welding method it
One.But laser power grade, process control (focus fluctuation, light beam are to medium), assembled condition (fit-up gap, misalignment etc.)
And the factors such as the high reflectance of material limit its practical implementation scope.It is desirable to using the weldering of additive method
The compound welding technology that feature is connect to make up laser welding weak point just becomes the research emphasis of each advanced country, main at present
Have：Laser-Arc Hybrid Welding, laser-high frequency induction welding, laser-agitating friction weldering etc., wherein laser-electric arc composite heat source are welded
Connect research to succeed, and popularization and application are tentatively realized in practice in engineering.But as in automobile, aircraft manufacture, lightweight is high
A large amount of employings of strong structure (such as eyelid covering-skeleton of guided missile titanium alloy airvane etc.), to assembly precision, faying face width and weld seam
Penetration depth has strict demand, the synchronzed press of welding process, weld shape etc. just to become the key of welding quality.Research is sent out
Existing, asynchronous laser-electric resistance welding can not apply due to preheating and pressurizeing simultaneously in welding, so that can not reach efficiently
Welding effect.
The content of the invention
The technical problem to be solved is：In order to overcome deficiency of the prior art, the present invention to provide a kind of energy
Enough while the resistance hot-press arrangement of synchronous preheating and the synchronous hot pressing-Laser Welding pressurizeed.
The present invention solves its technical problem technical scheme to be taken：A kind of resistance heat of synchronous hot pressing-Laser Welding
Pressure device, including power supply, control device, series changing-over device, welding resistance transformator, welding bench, pressing mechanism and horn group,
The power supply, series changing-over device, welding resistance transformator and horn group are sequentially connected electrically to form welding circuit, the control device
One control end is connected with the input of series changing-over device, and the pressing mechanism is connected with the horn group, and the control sets
Standby control pressing mechanism applies pressure by horn group to welding piece, and the welding bench includes base plate and is arranged on
Actuating unit and slipway mechanism on base plate, the actuating unit drive slipway mechanism to drive welding piece to move back and forth.Welding
Loop is preheated to test specimen and electric resistance welding, meanwhile, pressure is synchronously applied by pressing mechanism, is conducive to the smooth of welding process
Carry out, it is ensured that welding quality.
Further, the slipway mechanism includes slide unit, copper pad and copper pad cable connection plate, and the copper pad is arranged on
On the slide unit, described copper pad cable connection plate one end is connected with the copper pad, the secondary of the other end and welding resistance transformator
By cable connection, one layer of insulation board between the slide unit and the copper pad, is provided with.Realize test specimen in weldering using slipway mechanism
Movement on seam direction, realizes continuous welding, meanwhile, under different mated conditions of the copper pad from horn, in same equipment
On can realize single welding and welding by both sides, it is only necessary to the simple installation site of one horn of adjustment, copper pad cable company
Fishplate bar is used for copper pad as cable connection during electrode and between welding resistance transformator.
Further, in order to provide the power of movement for slipway mechanism, the actuating unit includes servomotor, SERVO CONTROL
Device, spherical guide and ball-screw, the spherical guide are set in parallel on the base plate for two, and the slide unit is arranged on institute
State on spherical guide, the ball-screw is located between the spherical guide and is connected with the slide unit, the ball-screw one
End is connected with the servomotor, the servomotor and the servo controller and control device connection successively.Power
Mechanism adopts servomotor, and control is accurate, further improves welding quality.
Further, the horn group includes two horns, the horn include electric resistance welding head, circular electrode and
Electrode cable connecting plate, the electric resistance welding head of at least one horn are connected with pressing mechanism, and the circular electrode and electrode are electric
Cable connecting plate is connected with the electric resistance welding head.When single welding, two horns are symmetrical set in the top of copper pad,
Welding piece is located between horn and copper pad, and horn is downwardly applied to pressure and welding piece is pressed on copper pad；When for
During welding by both sides, two horns side for being arranged on copper pad symmetrical above and below, test specimen are located between two horns, by two electrodes
Arm applies pressure to test specimen.
Further, the pressing mechanism includes cylinder and pilot sleeve, and the cylinder is connected with the control device, described
The push rod of cylinder is connected through pilot sleeve end with the electric resistance welding head.Pilot sleeve has what is be oriented to the push rod of cylinder
Effect, it is ensured that the linearity of cylinder push rod and positional precision, it is to avoid cylinder push rod occurs shaking in welding process or offsets,
Ensure that welding quality.
Further, in order to realize automatically controlling for pressing mechanism, also including electromagnetic gas valve, a control of the control device
End processed is connected with the cylinder by the electromagnetic gas valve.Control device is realized by controlling opening or closing for electromagnetic gas valve
The pressurization of cylinder.
Further, for the ease of the installation of horn group and pressing mechanism, also including fixture, the fixture is flat before and after including
Two clamping plates that row is arranged, the horn group are located between described two clamping plates, and the pilot sleeve is connected with the clamping plate
Connect, the clamping plate lower end is fixedly connected on the base plate.
Specifically, the series changing-over device adopts controllable silicon, the control device control silicon controlled angle of flow adjustment weldering
Connect electric current.
Further, it is overheated in order to prevent welding resistance transformator and horn from occurring in welding process, welding quality is affected, also
Including the water route module for cooling, the water route module is through the welding resistance transformator and horn group.Entered using recirculated water
Row cooling, it is ensured that welding resistance transformator and horn normal work.
The invention has the beneficial effects as follows：The resistance hot-press arrangement of a kind of synchronous hot pressing-Laser Welding that the present invention is provided, will weldering
Connect circuit system preheating and pressurization is integrated together, preheating when overcoming asynchronous laser-electric resistance welding and pressurize can not be same
When the phenomenon that applies, so as to improve metal material to the absorbance of laser, laser power needed for reducing, improve weld seam crystallization bar
The defects such as part, reduction pore, fire check, can be widely applied to the material of the high reflectances such as aluminum, magnesium.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the principle schematic of preferred embodiment；
Fig. 2 is the structural representation of embodiment one；
Fig. 3 is the structural representation of embodiment one；
Fig. 4 is the structural representation of horn group；
Fig. 5 is the structural representation of horn group；
Fig. 6 is the structural representation of horn group；
Fig. 7 is the structural representation of welding bench；
Fig. 8 is the structural representation of welding bench；
Fig. 9 is the structural representation of embodiment two；
Figure 10 is the structural representation of embodiment two.
In figure：1st, cylinder, 2, pilot sleeve, 3, electric resistance welding head, 4, circular electrode, 5, electrode cable connecting plate, 6, examination
Part, 7, copper pad cable connection plate, 8, slide unit, 9, copper pad, 10, ball-screw, 11, servomotor, 12, spherical guide, 13,
Clamping plate, 14, base plate.
Specific embodiment
Presently in connection with accompanying drawing, the present invention is described in detail.This figure is simplified schematic diagram, is only illustrated in a schematic way
The basic structure of the present invention, therefore which only shows the composition relevant with the present invention.
Whole hot pressing Laser Welding welding system by the resistance hot-press arrangement that can work independently, i.e., device of the invention, and
The Laser Welding robot composition that can work independently.In actual welding, by Laser Welding robot control laser power, defocusing amount etc.
Parameter, by the parameters such as resistance hot-press arrangement control speed of welding, welding current, electrode pressure, shield gas flow rate, each welding
Input and welding beginning and end control of parameter etc. are completed by homemade integrating central controller.Below will be according to existing
Problem present in technology describes the structure of two kinds of resistance hot-press arrangements in detail.
As shown in figure 1, the resistance hot-press arrangement of a kind of synchronous hot pressing-Laser Welding of the present invention, including unidirectional 380V power supplys,
Control device, series changing-over device, welding resistance transformator, welding bench, pressing mechanism, horn group and the water route mould for cooling
Block, the unidirectional 380V power supplys, series changing-over device, welding resistance transformator and horn group are sequentially connected electrically to form welding circuit, weldering
The power pack that road forms whole system is taken back, the input of unidirectional 380V power supplys is also connected with a switch, for controlling whole system
Whether system switches on power, and a control end of the control device is connected with the input of series changing-over device, the pressing mechanism
It is connected with the horn group, the control device control pressing mechanism applies pressure, institute by horn group to welding piece 6
Water route module is stated through the part such as the welding resistance transformator and horn group, in order to avoid heating welding.Horn group, welding bench
The mechanical part of system has been collectively constituted with water route module.Circular electrode 4 and electrode cable connecting plate 5 can be from electric resistance welding heads
Exclusive use is pulled down on 3, to match the different application of single welding and welding by both sides.
Specifically, the resistance hot-pressing system of synchronous hot pressing-Laser Welding that the present invention is supplied to, including power pack and machinery
Part two parts；Wherein, the power pack includes：Series changing-over device, welding resistance transformator, power pack are electric using unidirectional 380V
Source, control device adjust welding current by controlling the silicon controlled angle of flow, pass through series changing-over in a terminal of transformator
Device adjustment determine welding resistance transformator no-load voltage ratio, by the secondary cable of welding resistance transformator using as load circular electrode 4 or
Copper pad cable connection plate 7 is connected directly between the secondary terminals of transformator, test specimen 6 is preheated by circular electrode 4, copper packing
Plate 9 reduces welding impedance reduces shunting makes welding process stable.The mechanical part includes horn group, welding bench, water
Road module.Two embodiments are discussed in detail according to single welding and welding by both sides separately below.
Embodiment one：
As illustrated in figs. 2 through 8, the resistance hot-press arrangement of a kind of synchronous hot pressing-Laser Welding of the invention, is mainly used in one side
Weldering, including unidirectional 380V power supplys, control device, series changing-over device, welding resistance transformator, welding bench, pressing mechanism, horn
Group and water route module, the power supply, series changing-over device, welding resistance transformator and horn group are sequentially connected electrically to form welding circuit,
One control end of the control device is connected with the input of series changing-over device, and the series changing-over device adopts controllable silicon, institute
Control device control silicon controlled angle of flow adjustment welding current is stated, is adjusted by series changing-over device at the once end of welding resistance transformator
The whole no-load voltage ratio for determining welding resistance transformator.
The welding bench includes base plate 14 and the actuating unit that is arranged on base plate 14 and slipway mechanism, described dynamic
Force mechanisms drive slipway mechanism to drive welding piece 6 to move back and forth.The slipway mechanism includes slide unit 8, copper pad 9 and copper pad
Cable connection plate 7, the copper pad 9 are fixed on the slide unit 8, described 7 one end of copper pad cable connection plate and the copper packing
The external part connection of plate 9, the other end directly pass through cable connection with the secondary of welding resistance transformator, and slide unit 8 adopts corrosion resistant plate, drops
The induction reactance of low welding circuit, is copper pad 9 and pressing plate above corrosion resistant plate, has one layer of insulation board in the middle of steel plate and copper pad 9
Realize the isolation of signal.The actuating unit includes servomotor 11, servo controller, spherical guide 12 and ball-screw 10,
Two spherical guides 12 be arrangeding in parallel are fixed with the base plate 14 of welding bench, are provided with two spherical guides 12
Slide unit 8, the ball-screw 10 are located between the spherical guide 12 and are connected with the slide unit 8, the ball-screw 10 1
End is provided with the servomotor 11, the servomotor 11 and the servo controller and control device connection successively.
Control device drives slide unit 8 to move back and forth on spherical guide 12 by servomotor 11.
During single-sided welding, the horn group includes two horns of symmetrical distribution, each described horn bag
Include electric resistance welding head 3, circular electrode 4 and electrode cable connecting plate 5, the circular electrode 4 and electrode cable connecting plate 5 with it is described
Electric resistance welding head 3 connects, and during welding, circular electrode 4 is to rotate.Pressing mechanism is two groups, is respectively used to drive two electrodes
Arm produces pressure to test specimen 6, and the pressing mechanism includes cylinder 1, pilot sleeve 2, electromagnetic gas valve and fixture, the control device
A control end be connected with the cylinder 1 by the electromagnetic gas valve, the push rod of the cylinder 1 passes through 2 end of pilot sleeve
It is connected with the electric resistance welding head 3；The fixture includes two clamping plates 13 be arrangeding in parallel in front and back, and the horn group is located at institute
State between two clamping plates 13, and the pilot sleeve 2 is connected with the clamping plate 13,13 lower end of the clamping plate is fixedly connected on described
On base plate 14.
During single welding, two electric resistance welding heads 3 are separately mounted on the horn of left and right, and two circular electrodes 4 are same in test specimen 6
Side, when single welding is configured, the mode of connection of welding circuit is：Copper on the secondary terminals and welding bench of welding resistance transformator
In the connection of backing plate cable connection plate 7.
Copper pad 9 on welding bench constitutes welding circuit with test specimen 6, circular electrode 4, makes examination as a termination electrode
Between part 6 and copper pad 9 and circular electrode 4 and test specimen 6, contact resistance and the resistance generation resistance heat of test specimen 6 itself are used as welding
Thermal source, meanwhile, cylinder 1 controls the power size of its output by control device, and the pressing mechanism is in welding process
In left and right circular electrode 4 is pressurizeed respectively, left and right wheel electrode is pressed to test specimen 6 respectively, makes test specimen 6 in two electrodes
Pressure under form certain contact resistance, be conducive to being smoothed out while ensureing welding quality for welding process.
Embodiment two：
As shown in figs. 9-10, the difference of the present embodiment and embodiment one is setting and the welding resistance transformator of horn
Wiring is different, the resistance hot-press arrangement of a kind of synchronous hot pressing-Laser Welding of the present invention, is mainly used in welding by both sides, including unidirectional
380V power supplys, control device, series changing-over device, welding resistance transformator, welding bench, pressing mechanism, horn group and water route mould
Block, power input termination one control the switch of break-make.The connection of the horn of the present embodiment is different with embodiment one, this reality
When applying welding by both sides, the left horn of the electric resistance welding head 3 in left side, pressurizing cylinder 1 and pilot sleeve 2 is translated into the new of left side
On position, right horn is removed after decomposing the lower section that right electric resistance welding head 3 is arranged on left electric resistance welding head 3, two rollers electricity
Pole 4 is in the both sides of test specimen 6.Now, the outfan of welding resistance transformator is connected with two circular electrodes 4 of horn group, roller electricity
Play a part of simultaneously to heat and pressurize in pole 4.
With the above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, related staff
Various change and modification can be carried out in without departing from the scope of the present invention completely.The technical scope of this invention is not
The content being confined in description, it is necessary to determine its technical scope according to right.
Claims (9)
1. a kind of resistance hot-press arrangement of synchronous hot pressing-Laser Welding, it is characterised in that：Including power supply, control device, series changing-over
Device, welding resistance transformator, welding bench, pressing mechanism and horn group, the power supply, series changing-over device, welding resistance transformator and
Horn group is sequentially connected electrically to form welding circuit, and a control end of the control device is connected with the input of series changing-over device
Connect, the pressing mechanism is connected with the horn group, the control device control pressing mechanism is by horn group to welding
Test specimen (6) applies pressure, and the welding bench includes base plate (14) and the actuating unit that is arranged on base plate (14) and cunning
Platform mechanism, the actuating unit drive slipway mechanism to drive welding piece (6) to move back and forth.
2. the resistance hot-press arrangement of synchronization hot pressing-Laser Welding as claimed in claim 1, it is characterised in that：The slipway mechanism
Including slide unit (8), copper pad (9) and copper pad cable connection plate (7), copper pad (9) are arranged on the slide unit (8),
Described copper pad cable connection plate (7) one end is connected with the copper pad (9), and the other end passes through electricity with the secondary of welding resistance transformator
Cable connects, and is provided with one layer of insulation board between slide unit (8) and the copper pad (9).
3. the resistance hot-press arrangement of synchronization hot pressing-Laser Welding as claimed in claim 2, it is characterised in that：The actuating unit
Including servomotor (11), servo controller, spherical guide (12) and ball-screw (10), described spherical guide (12) are two
It is set in parallel on the base plate (14), described slide unit (8) are arranged on the spherical guide (12), ball-screw (10)
It is connected between the spherical guide (12) and with the slide unit (8), described ball-screw (10) one end and the servo are electric
Machine (11) connects, servomotor (11) and the servo controller and control device connection successively.
4. the resistance hot-press arrangement of synchronization hot pressing-Laser Welding as claimed in claim 2, it is characterised in that：The horn group
Including two horns, the horn includes electric resistance welding head (3), circular electrode (4) and electrode cable connecting plate (5), extremely
The electric resistance welding head (3) of a few horn is connected with pressing mechanism, circular electrode (4) and electrode cable connecting plate (5)
It is connected with electric resistance welding head (3).
5. the resistance hot-press arrangement of synchronization hot pressing-Laser Welding as claimed in claim 4, it is characterised in that：The pressing mechanism
Including cylinder (1) and pilot sleeve (2), cylinder (1) is connected with the control device, and the push rod of cylinder (1) is passed through
Pilot sleeve (2) end is connected with electric resistance welding head (3).
6. the resistance hot-press arrangement of synchronization hot pressing-Laser Welding as claimed in claim 5, it is characterised in that：Also include electromagnetism gas
Valve, a control end of the control device are connected with the cylinder (1) by the electromagnetic gas valve.
7. the resistance hot-press arrangement of synchronization hot pressing-Laser Welding as claimed in claim 5, it is characterised in that：Also include fixture, institute
Two clamping plates (13) that fixture includes be arrangeding in parallel in front and back are stated, the horn group is located between described two clamping plates (13), and
Pilot sleeve (2) are connected with the clamping plate (13), and clamping plate (13) lower end is fixedly connected on the base plate (14).
8. the resistance hot-press arrangement of synchronization hot pressing-Laser Welding as claimed in claim 1, it is characterised in that：The series changing-over
Device adopts controllable silicon, the control device control silicon controlled angle of flow adjustment welding current.
9. the resistance hot-press arrangement of synchronization hot pressing-Laser Welding as claimed in claim 1, it is characterised in that：Also include for cold
But water route module, the water route module is through the welding resistance transformator and horn group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611156220.9A CN106513962A (en) | 2016-12-15 | 2016-12-15 | Synchronous hot-pressing-laser welding resistance hot pressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611156220.9A CN106513962A (en) | 2016-12-15 | 2016-12-15 | Synchronous hot-pressing-laser welding resistance hot pressing device |
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| Publication Number | Publication Date |
|---|---|
| CN106513962A true CN106513962A (en) | 2017-03-22 |
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ID=58339442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611156220.9A Pending CN106513962A (en) | 2016-12-15 | 2016-12-15 | Synchronous hot-pressing-laser welding resistance hot pressing device |
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| WO1997043075A1 (en) * | 1996-05-14 | 1997-11-20 | Newcor, Inc. | Low inertia bearing arrangement for weld wheel of seam welder |
| CN2381432Y (en) * | 1999-08-23 | 2000-06-07 | 王志祥 | Resistor welder for welding vertical and annular seams |
| CN101254569A (en) * | 2008-03-21 | 2008-09-03 | 杜名古 | Computer full-automatic multifunctional seam welder |
| CN101259565A (en) * | 2008-04-29 | 2008-09-10 | 邓亚东 | High-precision grizzly screen manufacturing technology and special-purpose welding press |
| CN101306491A (en) * | 2008-05-26 | 2008-11-19 | 哈尔滨工业大学 | Laser-electric resistance seam welding in-phase compound welding method of frame-covering structure |
| JP2012139727A (en) * | 2010-12-13 | 2012-07-26 | Denso Corp | Resistance welding system |
| CN204893181U (en) * | 2015-08-06 | 2015-12-23 | 广东华士科技股份有限公司 | Shock absorber end cap seam welder |
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2016
- 2016-12-15 CN CN201611156220.9A patent/CN106513962A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997043075A1 (en) * | 1996-05-14 | 1997-11-20 | Newcor, Inc. | Low inertia bearing arrangement for weld wheel of seam welder |
| CN2381432Y (en) * | 1999-08-23 | 2000-06-07 | 王志祥 | Resistor welder for welding vertical and annular seams |
| CN101254569A (en) * | 2008-03-21 | 2008-09-03 | 杜名古 | Computer full-automatic multifunctional seam welder |
| CN101259565A (en) * | 2008-04-29 | 2008-09-10 | 邓亚东 | High-precision grizzly screen manufacturing technology and special-purpose welding press |
| CN101306491A (en) * | 2008-05-26 | 2008-11-19 | 哈尔滨工业大学 | Laser-electric resistance seam welding in-phase compound welding method of frame-covering structure |
| JP2012139727A (en) * | 2010-12-13 | 2012-07-26 | Denso Corp | Resistance welding system |
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Application publication date: 20170322 |