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CN106903432B - Based on the laser assembly solder device and its control method rolled with weldering - Google Patents

Based on the laser assembly solder device and its control method rolled with weldering Download PDF

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Publication number
CN106903432B
CN106903432B CN201710315290.2A CN201710315290A CN106903432B CN 106903432 B CN106903432 B CN 106903432B CN 201710315290 A CN201710315290 A CN 201710315290A CN 106903432 B CN106903432 B CN 106903432B
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China
Prior art keywords
pressure
welding
plate
motor
pressure device
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CN106903432A (en
Inventor
檀财旺
陈波
孟圣昊
张泽群
宋晓国
冯吉才
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Kunshan Baojin Laser Tailor Welding Co Ltd
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Harbin Institute of Technology Weihai
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Publication of CN106903432A publication Critical patent/CN106903432A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20Bonding
    • B23K26/21Bonding by welding
    • B23K26/24Seam welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70Auxiliary operations or equipment
    • B23K26/702Auxiliary equipment

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)

Abstract

本发明提出一种基于随焊碾压的激光拼焊装置,包括分别固定在地面上的焊接工作平台,焊接移动平台和对中压力装置,其中所述对中压力装置和焊接工作平台沿待焊板的传送方向依次设置在地面上,所述焊接移动平台横跨所述焊接工作平台;在所述焊接移动平台上连接有激光头、焊前压力装置及焊后压力装置,所述焊前压力装置及焊后压力装置均可与传送至所述焊接工作平台上的待焊板相接触,所述激光头的激光束焦点处于焊前压力装置及焊后压力装置之间的待焊板表面;控制系统通过数据线连接控制所述焊接工作平台、焊接移动平台、对中压力装置、激光头,焊前压力装置以及焊后压力装置。上述装置结构简单可靠,操作方便,能提高异种金属薄板的焊接效果。

The present invention proposes a laser tailored welding device based on rolling with welding, including a welding work platform fixed on the ground, a welding mobile platform and a centering pressure device, wherein the centering pressure device and the welding work platform are along the lines to be welded. The conveying directions of the plates are set on the ground in sequence, and the welding mobile platform straddles the welding work platform; a laser head, a pre-welding pressure device and a post-weld pressure device are connected to the welding mobile platform, and the pre-welding pressure device Both the device and the post-weld pressure device can be in contact with the plate to be welded transmitted to the welding work platform, and the laser beam focus of the laser head is located on the surface of the plate to be welded between the pre-weld pressure device and the post-weld pressure device; The control system controls the welding work platform, the welding mobile platform, the centering pressure device, the laser head, the pre-welding pressure device and the post-weld pressure device through the data line connection. The above-mentioned device has a simple and reliable structure, is convenient to operate, and can improve the welding effect of dissimilar metal sheets.

Description

Based on the laser assembly solder device and its control method rolled with weldering
Technical field
The present invention relates to materials processing engineering field more particularly to it is a kind of based on the laser assembly solder device that rolls of weldering and its Control method.
Background technique
Both the industrial circle that is connected to of aluminum/steel dissimilar metal has a wide range of applications, especially in automobile industry, realize Car body weight can effectively be mitigated by being reliably connected, energy saving, reduce exhaust emissions.Aluminum/steel dissimilar metal is influenced to connect It is the control of interface intermetallic compounds layer in place of the most critical of head performance.Blocked up brittle intermetallic layer will be tight Ghost image rings the performance of connector, therefore, inhibits the generation of intermetallic compounds layer and growth is to improve the effective way of joint performance. And excessive heat input can promote thick big intermetallic compounds layer to generate.
In addition, the welding stress of light sheet material is larger, it is easy to there is the defects of HOT CRACK FOR WELDING P, welding deformation, and aluminium/ The physical and chemical performance (thermal expansion coefficient) of two kinds of materials of steel has bigger difference, and post welding distortion is particularly evident.In view of this, have The method for laser welding of smaller heat input and heat affected area be considered as it is a kind of weld aluminum/steel dissimilar metal ideal method, but on Problem on deformation is stated to remain to be further improved.
Therefore, take auxiliary with weldering rolling method in the welding process, the synchronous pressure that applies is considered as solving in welded joints A kind of effective way of the above problem, but it is existing with weldering rolling apparatus or with weldering impact device, there is their shortcoming.
As 204771174 U of Publication No. CN patent disclosure with weldering rolling device it is huge, rolling wheel be easy stop swash Light path, or roll position and laser action position and deviate too far, the purpose with weldering is not achieved.Publication No. CN 201728471 The trailing peening device of the patent disclosure of U carries out direct contact type impact to surface of test piece using mechanical force, and the pressure of application is simultaneously Discontinuously, it is difficult to guarantee the uniformity of rolling effect, while the size of impact force is difficult to quantify.Chinese patent ZL03132581.5 Disclosed weld with trailing impactive rolling device is the technology of a kind of new control welding stress and deformation, and this method is although compensate for weldering It rolls and insufficient with the part of weldering percussion mechanism, but still is that discontinuous applies pressure, the guarantee foundation of impact effect is subtracting On the basis of small impact area, and the size of impact force is difficult to quantify.
Summary of the invention
In order to solve the deficiencies in the prior art, the invention proposes a kind of based on the laser assembly solder rolled with weldering dress It sets and its control method, to improve the welding effect of dissimilar metal.
To achieve the goals above, an aspect of of the present present invention proposes a kind of based on the laser assembly solder device that rolls of weldering, Including the welding platform being separately fixed on ground, mobile platform and centering pressure apparatus are welded, wherein the centering pressure Power device and welding platform are set gradually on the ground along the direction of transfer to welding plate, and the welding mobile platform is across institute State welding platform;Pressure apparatus and postwelding pressure apparatus before laser head, weldering are connected on the welding mobile platform, Before the weldering pressure apparatus and postwelding pressure apparatus can be sent to being in contact on the welding platform to welding plate, The laser beam foucing of the laser head is in the plate surface to be welded before welded between pressure apparatus and postwelding pressure apparatus;Control system System controls the welding platform, welding mobile platform, centering pressure apparatus, laser head, pressure before welding by data line connection Power device and postwelding pressure apparatus.
Preferably, the centering pressure apparatus includes the support column fixed on the ground;It is installed on the support column There is cross slide way, transverse moving mechanism is installed on the cross slide way, the transverse moving mechanism is equipped with and the transverse direction The transverse shifting wheel that guide rail is used cooperatively, the second mobile motor is additionally provided on the transverse moving mechanism, and push plate passes through laterally pressure Force snesor is connected with the transverse moving mechanism;The push plate is equipped with the groove to match with the plate shape to be welded, Second mobile motor and the transverse pressure sensor are connect by data line with the control system.
Preferably, the welding platform includes the welding base station fixed on the ground, in the Welder Make base station and be equipped with welding backing plate, protection air drain is offered on the welding backing plate, in the welding backing plate Two groups of first pressure motors are respectively equipped on the welding base station of two sides, be all provided on every group of first pressure motor there are two fastening Pressure apparatus offers fastening pressure limiting slot on each fastening pressure device, and every group of fastening pressure device passes through the fastening Pressure limiting slot connects a clam member, and described two clam members are arranged at the top of the welding backing plate, and And the gap between described two clam members is corresponding with the protection air drain;The first pressure motor by data line with The control system connection.
Preferably, the welding mobile platform includes the first support frame fixed on the ground, in first support Frame is equipped with longitudinal rail, offers longitudinal rail slot on the longitudinal rail, longitudinal shifting is equipped on the longitudinal rail Motivation structure, the longitudinal moving mechanism are equipped with first movement motor and longitudinal movement wheel, and the longitudinal movement wheel setting exists In the longitudinal rail slot, laser head mounting rack and two groups of adjustable positioning in position are equipped on the longitudinal moving mechanism Plate, the laser head mounting rack are connected with the laser head;The first movement motor passes through data line and control system System is connected.
Preferably, the postwelding pressure apparatus includes the second support frame, and second support frame passes through far from laser head The positioning plate of mounting rack is fixed on the welding mobile platform;Second pressure motor is arranged on second support frame;Institute It states second pressure motor, first pressure bar and first pressure drive rod to be from top to bottom connected in turn, wherein described Two pressure motors and first pressure bar are coaxially connected together, and first pressure sensor, institute are equipped on the first pressure bar The lower end for stating first pressure bar is equipped with the first locating shaft, and two groups of first pressure drive rods are connected with first locating shaft It connects, the end of every group of first pressure drive rod is equipped with the first rolling wheel, and the center location of first rolling wheel is equipped with first axle It holds, the first connecting shaft for connecting first pressure drive rod, the first connection the tip of the axis is equipped in the first bearing Sunk key is formed, gag lever post is connected by the sunk key with first rolling wheel;It is symmetrically set on second support frame There are two limit plate, the relative position for adjusting the limit plate and second support frame is offered on the limit plate Keyway;Wire feed bracket is equipped on the limit plate close to laser head side, the wire feed bracket is equipped with wire feeding head;Described second Pressure motor is connect by data line with the control system with the first pressure sensor.
Preferably, pressure apparatus includes third support frame before the weldering, and the third support frame passes through close to laser head The positioning plate of mounting rack is fixed on the welding mobile platform, and third pressure motor is arranged on the third support frame;Institute It states third pressure motor, second pressure bar and second pressure drive rod to be from top to bottom connected in turn, wherein described Three pressure motors and second pressure bar are coaxially connected together, and second pressure sensor, institute are equipped on the second pressure bar The lower end for stating second pressure bar is equipped with the second locating shaft, and one group of second pressure drive rod is connected on second locating shaft, The end of the second pressure drive rod is connected with the second rolling wheel, and the center location of second rolling wheel is equipped with the second axis It holds, the second connecting shaft for connecting second pressure drive rod is equipped in the second bearing, at the end of the second pressure bar End, which is additionally provided with, makes the vertically oriented plate of the second pressure drive rod axially movable, the third pressure motor and described second Pressure sensor is connected by data line with the control system.
Preferably, the first movement motor, the second mobile motor, first pressure motor, second pressure motor and Third pressure motor is all made of servo motor.
Another aspect of the present invention also proposed a kind of based on the above-mentioned control based on the laser assembly solder device rolled with weldering Method the described method comprises the following steps: step 1 will be placed at the push plate of the centering pressure apparatus to welding plate, by described Control system calibrates centering parameter, makes to compress to welding plate on the welding platform in and through clam member;Step 2, By adjusting the relative position of limit plate and the second support frame in the postwelding pressure apparatus, to adjust when the postwelding pressure When the surface that device treats welding plate applies preset pressure, two the first rolling wheels are in the position of the plate surface to be welded;Adjustment The laser beam foucing of the laser head makes laser beam foucing and close to the of the laser head in the position of the plate surface to be welded Spacing between one rolling wheel is in 3 ~ 5mm;It is adjusted by adjusting the position of the third support frame in pressure apparatus before the weldering Second rolling wheel makes the spacing between laser beam foucing and second rolling wheel exist in the position of the plate surface to be welded 100~120mm;The position of step 3, adjustment welding zero point;Step 4 sets path of welding and weldering by the control system Connect parameter;Step 5 is made the postwelding pressure apparatus by the control system and welds the surface that preceding pressure apparatus treats welding plate Apply preset pressure;Step 6, the adjustment wire feeding head and the relative position to welding plate;Step 7 treats welding plate implementation weldering It connects.
Preferably, the welding parameter in the step 4 include laser power be 1kW ~ 6kW, defocusing amount be+10 mm ~+ 30 mm, Ar protection air-flow amount are the L/min of 10 L/min ~ 30, and speed of welding is the m/min of 0.5 m/min ~ 3.
The beneficial effect of the program of the present invention is above-mentioned based on simply may be used with the laser assembly solder apparatus structure that rolls of weldering It leans on, it is easy to operate, it can be achieved that the accurate clamping that the dissimilar metal thin plate such as aluminium/steel docks, improves welding effect;It was welding Rolling wheel real-time synchronization rolls weld metal in journey, can inhibit thin plate post welding distortion and refines and changes between the metal at dissimilar metal interface Nitride layer is closed, Weld Performance is improved;First rolling wheel and the direct active position spacing of laser beam are minimum, within the scope of 5 mm, for Laser welding heats the fast feature of cooling velocity, it can be achieved that effectively rolling;Rolling pressure can real-time control, guarantee rolling effect.
Detailed description of the invention
Fig. 1 shows the structural schematic diagram according to the present invention based on the laser assembly solder device rolled with weldering.
Fig. 2 shows the structural schematic diagrams of centering pressure apparatus according to the present invention.
Fig. 3 shows the structural schematic diagram of welding platform according to the present invention.
Fig. 4 shows the structural schematic diagram of welding mobile platform according to the present invention.
Fig. 5 shows the structural schematic diagram of postwelding pressure apparatus according to the present invention.
Fig. 6 shows the structural schematic diagram of pressure apparatus before weldering according to the present invention.
Appended drawing reference: 1- control system, 2- laser head, 3- weld mobile platform, 4- centering pressure apparatus, 5- welding Platform, 6- postwelding pressure apparatus, pressure apparatus before 7- is welded, 8- longitudinal moving mechanism, 9- longitudinal movement wheel, 10- longitudinal rail slot, 11- laser head mounting rack, 12- positioning plate, the first support frame of 13-, 14- first movement motor, 15- longitudinal rail, 16- support Column, 17- cross slide way, the second mobile motor of 18-, 19- transverse shifting wheel, 20- wait for welding plate, 21- push plate, and 22- transverse pressure passes Sensor, 23- transverse moving mechanism, 24- fastening pressure device, 25- fastening pressure limiting slot, 26- first pressure motor, 27- weldering Connecing work base station, 28- protects air drain, 29- welding backing plate, 30- clam member, 32- second pressure motor, 33- keyway, 34- limit plate, 35- first pressure bar, 36- first pressure drive rod, 37- wire feed bracket, 38- wire feeding head, 39- first are rolled Wheel, 40- hard alloy wheel, 41- sunk key, 42- first bearing, 43- gag lever post, 44- first pressure sensor, 45- second are supported Frame, 46- third support frame, 47- second pressure bar, 48- second pressure drive rod, the second rolling wheel of 49-, 50- second pressure pass Sensor, the vertically oriented plate of 51-, 52- third pressure motor.
Specific embodiment
A specific embodiment of the invention is further described with reference to the accompanying drawing.
As shown in Figure 1, according to the present invention based on including being separately fixed at ground with the laser assembly solder device that rolls of weldering On welding platform 5, mobile platform 3 and centering pressure apparatus 4 are welded, wherein the centering pressure apparatus 4 and Welder Make platform 5 to set gradually on the ground along the direction of transfer to welding plate 20, the welding mobile platform 3 is across the welding Platform 5;Pressure apparatus 7 and postwelding pressure apparatus 6 before being connected with laser head 2 on the welding mobile platform 3, welding, it is described Before welding pressure apparatus 7 and postwelding pressure apparatus 6 can be sent to connecting on the welding platform 5 to welding plate 20 Touching, the laser beam foucing of the laser head 2 is in weld before between pressure apparatus 7 and postwelding pressure apparatus 6 to 20 table of welding plate Face;Control system 1 by data line connection control the welding platform 5, welding mobile platform 3, centering pressure apparatus 4, Laser head 2, pressure apparatus 7 and postwelding pressure apparatus 6 before welding.
As shown in Fig. 2, the centering pressure apparatus 4 includes the support column 16 fixed on the ground;In the support column 16 On cross slide way 17 is installed, transverse moving mechanism 23 is installed on the cross slide way 17, on the transverse moving mechanism 23 Equipped with the transverse shifting wheel 19 being used cooperatively with the cross slide way 17, it is mobile that second is additionally provided on the transverse moving mechanism 23 Motor 18, push plate 21 are connected by transverse pressure sensor 22 with the transverse moving mechanism 23;The push plate 21 is equipped with With the groove to match to 20 shape of welding plate, welding position is reached to welding plate 20 to push.Second mobile motor 18 and the transverse pressure sensor 22 connect with the control system 1 by data line.
As shown in figure 3, the welding platform 5 includes the welding base station 27 fixed on the ground, in the weldering It connects work base station 27 and is equipped with welding backing plate 29, protection air drain 28 is offered on the welding backing plate 29, described Two groups of first pressure motors 26, every group of first pressure electricity are respectively equipped on the welding base station 27 of 29 two sides of welding backing plate It is all provided on machine 26 there are two fastening pressure device 24, offers fastening pressure limiting slot 25 on each fastening pressure device 24, often Group fastening pressure device 24 connects a clam member 30, described two clam members by the fastening pressure limiting slot 25 30 are arranged at the top of the welding backing plate 29, and the gap between described two clam members 30 and the protection Air drain 28 is corresponding;The first pressure motor 26 is connect by data line with the control system 1.Pass through to welding plate 20 described Centering pressure apparatus 4 is pushed to welding position, which refers between the welding backing plate 29 and clam member 30 Position, and make the welding point of dissimilar metal be in it is described protection air drain 28 position.
As shown in figure 4, the welding mobile platform 3 includes the first support frame 13 fixed on the ground, described first Support frame 13 is equipped with longitudinal rail 15, longitudinal rail slot 10 is offered on the longitudinal rail 15, in the longitudinal rail 15 On longitudinal moving mechanism 8 is installed, the longitudinal moving mechanism 8 is equipped with first movement motor 14 and longitudinal movement wheel 9, institute It states longitudinal movement wheel 9 to be arranged in the longitudinal rail slot 10, laser head mounting rack 11 is equipped on the longitudinal moving mechanism 8 And the adjustable positioning plate 12 in two groups of positions, the laser head mounting rack 11 are connected with the laser head 2;The first movement Motor 14 is connected by data line with the control system 1.
As shown in figure 5, the postwelding pressure apparatus 6 includes the second support frame 45, second support frame 45 passes through separate The positioning plate 12 of laser head mounting rack 11 is fixed on the welding mobile platform 3;The setting of second pressure motor 32 is described the On two support frames 45;The second pressure motor 32, first pressure bar 35 and first pressure drive rod 36 are from top to bottom successively It links together, wherein the second pressure motor 32 and first pressure bar 35 are coaxially connected together, in the first pressure Bar 35 is equipped with first pressure sensor 44, and the lower end of the first pressure bar 35 is equipped with the first locating shaft, two group of first pressure Power drive rod 36 is connected with first locating shaft, and the end of every group of first pressure drive rod 36 is equipped with the first rolling wheel 39, in the present embodiment, first rolling wheel 39 uses hard alloy wheel 40, and the center location of first rolling wheel 39 is set There is a first bearing 42, is equipped with the first connecting shaft for connecting first pressure drive rod 36 in the first bearing 42, described the One connection the tip of the axis forms sunk key 41, and gag lever post 43 is connected with first rolling wheel 39 by the sunk key 41, is passed through The gag lever post 43 limits the horizontal direction displacement of first rolling wheel 39;It is symmetrical on second support frame 45 Set there are two limit plate 34, keyway 33 is opened up on the limit plate 34, to adjust the limit plate 34 and described second The relative position of support 45;Wire feed bracket 37 is equipped on the limit plate 34 close to 2 side of laser head, on the wire feed bracket 37 Equipped with wire feeding head 38;The second pressure motor 32 passes through data line and the control system with the first pressure sensor 44 1 connection.
As shown in fig. 6, pressure apparatus 7 includes third support frame 46 before the weldering, the third support frame 46 passes through close The positioning plate 12 of laser head mounting rack 11 is fixed on the welding mobile platform 3, and the setting of third pressure motor 52 is described the On three support frames 46;The third pressure motor 52, second pressure bar 47 and second pressure drive rod 48 are from top to bottom successively It links together, wherein the third pressure motor 52 and second pressure bar 47 are coaxially connected together, in the second pressure Bar 47 is equipped with second pressure sensor 50, and the lower end of the second pressure bar 47 is equipped with the second locating shaft and (does not show in figure Out), one group of second pressure drive rod 48, the end connection of the second pressure drive rod 48 are connected on second locating shaft There is the second rolling wheel 49, the center location of second rolling wheel 49 is equipped with second bearing, is equipped with and is used in the second bearing The second connecting shaft for connecting second pressure drive rod 48, in order to guarantee the second pressure drive rod 48 axially movable, in institute The end for stating second pressure bar 47 is additionally provided with vertically oriented plate 51, the third pressure motor 52 and the second pressure sensor 50 are connected by data line with the control system 1.
In order to realize high-precision control, first movement motor 14 according to the present invention, the second mobile motor 18, first Pressure motor 26, second pressure motor 32 and third pressure motor 52 can use servo motor.
It is according to the present invention based on the control method of laser assembly solder device rolled with weldering the following steps are included:
Step 1 will be placed at the push plate 21 of the centering pressure apparatus 4 to welding plate 20, be calibrated by the control system 1 Centering parameter makes to compress to welding plate 20 on the welding platform 5 in and through clam member 30.
Specific centering process is as follows, and first pressure threshold value is set in the control system 1, drives second movement Motor 18 acts, so that transverse moving mechanism 23 drives push plate 21 to push to welding platform 5 to welding plate 20, the laterally pressure The real-time pressure value that force snesor 22 will test is sent to the control system 1, when real-time pressure value and first pressure threshold value When equal, 18 stopping of the second mobile motor movement reaches designated position to welding plate 20 at this time, i.e., has been in welding plate 20 Between the welding backing plate 29 and clam member 30, and the welding interface to welding plate 20 is in the protection gas At slot 28, centering operation is so far completed.
The first pressure motor 26 is driven to act by the control system 1, so that 24 band of fastening pressure device Dynamic clam member 30 moves down, to realize that the fastening for treating welding plate 20 compresses.
Step 2, by adjusting the relative position of limit plate 34 and the second support frame 45 in the postwelding pressure apparatus 6, Come adjust when the postwelding pressure apparatus 6 treat welding plate 20 surface apply preset pressure when, two the first rolling wheels 39 exist The position to 20 surface of welding plate;The laser beam foucing of the laser head 2 is adjusted in the position to 20 surface of welding plate, is made Spacing between laser beam foucing and the first rolling wheel 39 of the close laser head 2 is in 3 ~ 5mm;By adjusting being pressed before the weldering The position of third support frame 46 in power device 7 adjusts second rolling wheel 49 in the position to 20 surface of welding plate, Make the spacing between laser beam foucing and second rolling wheel 49 in 100 ~ 120mm.
The position of step 3, adjustment welding zero point.Detailed process is as follows: drive the first movement motor 14 to act, so that Pressure apparatus 7 is moved to specified position before longitudinal moving mechanism 8 drives the laser head 2, postwelding pressure apparatus 6 and welds.
Step 4 sets path of welding and welding parameter by the control system 1.Specific welding parameter includes swashing Optical power is 1kW ~ 6kW, and defocusing amount is+10 mm of mm ~+30, and protection gas uses Ar gas, and shield gas flow rate is 10 L/min ~ 30 L/min, speed of welding are the m/min of 0.5 m/min ~ 3.
Step 5 makes pressure apparatus 7 before the postwelding pressure apparatus 6 and weldering treat welding plate 20 by the control system 1 Surface applies preset pressure.
Detailed process is as follows: driving the third pressure motor 52 before the weldering in pressure apparatus 7 to act, so that second pressure Bar 47 drives second pressure drive rod 48 to move down, and treats 20 surface of welding plate by the second rolling wheel 49 and implements pressure, until The real-time pressure value that the second pressure sensor 50 is fed back and the second pressure threshold value set in the control system 1 are equal, The pressure that the second rolling wheel 49 applies at this time is maintained in the range of 1kN ~ 5kN.Drive second in the postwelding pressure apparatus 6 Pressure motor 32 acts, so that first pressure bar 35 drives first pressure drive rod 36 to move down, passes through the first rolling wheel 39 It treats 20 surface of welding plate and implements pressure, until the real-time pressure value and the control system of the first pressure sensor 44 feedback The third pressure threshold set in 1 is equal, and the pressure that the first rolling wheel 39 applies at this time is maintained in the range of 1kN ~ 20kN.
Step 6, the adjustment wire feeding head 38 and the relative position to welding plate 20.
Step 7 treats the implementation welding of welding plate 20.
It is according to the present invention based on simple and reliable with the laser assembly solder apparatus structure that rolls of weldering, it is easy to operate, it can be achieved that Such as the accurate clamping of the dissimilar metals thin plate such as aluminium/steel docking, improve welding effect;Rolling wheel real-time synchronization in the welding process Weld metal is rolled, can inhibit thin plate post welding distortion and refines the intermetallic compounds layer at dissimilar metal interface, improves weld seam Energy;First rolling wheel and the direct active position spacing of laser beam are minimum, within the scope of 5 mm, heat cooling speed for laser welding Fast feature is spent, it can be achieved that effectively rolling;Rolling pressure can real-time control, guarantee rolling effect.

Claims (7)

1.一种基于随焊碾压的激光拼焊装置,其特征在于:包括分别固定在地面上的焊接工作平台,焊接移动平台和对中压力装置,其中所述对中压力装置和焊接工作平台沿待焊板的传送方向依次设置在地面上,所述焊接移动平台横跨所述焊接工作平台;在所述焊接移动平台上连接有激光头、焊前压力装置以及焊后压力装置,所述焊前压力装置以及焊后压力装置均可与传送至所述焊接工作平台上的待焊板相接触,所述激光头的激光束焦点处于焊前压力装置以及焊后压力装置之间的待焊板表面;控制系统通过数据线连接控制所述焊接工作平台、焊接移动平台、对中压力装置、激光头,焊前压力装置以及焊后压力装置;其中所述焊接移动平台包括固定在地面上的第一支撑架,在所述第一支撑架上设有纵向导轨,所述纵向导轨上开设有纵向导轨槽,在所述纵向导轨上安装有纵向移动机构,所述纵向移动机构上设有第一移动电机以及纵向移动轮,所述纵向移动轮设置在所述纵向导轨槽内,在所述纵向移动机构上设有激光头安装架以及两组位置可调的定位板,所述激光头安装架与所述激光头相连接;所述第一移动电机通过数据线与所述控制系统相连接;所述焊后压力装置包括第二支撑架,所述第二支撑架通过远离激光头安装架的定位板固定在所述焊接移动平台上;第二压力电机设置在所述第二支撑架上;所述第二压力电机、第一压力杆以及第一压力传动杆由上至下依次连接在一起,其中所述第二压力电机与第一压力杆同轴连接在一起,在所述第一压力杆上设有第一压力传感器,所述第一压力杆的下端部设有第一定位轴,两组第一压力传动杆均与所述第一定位轴相连接,每组第一压力传动杆的末端设有第一碾压轮,所述第一碾压轮的圆心位置设有第一轴承,所述第一轴承内设有用于连接第一压力传动杆的第一连接轴,所述第一连接轴的末端形成槽键,限位杆通过所述槽键与所述第一碾压轮相连接;在所述第二支撑架上对称的设有两个限位板,所述限位板上开设有用于调整所述限位板与所述第二支撑架的相对位置的键槽;在靠近激光头一侧的限位板上设有送丝支架,所述送丝支架上设有送丝头;所述第二压力电机与所述第一压力传感器通过数据线与所述控制系统连接。1. A laser tailored welding device based on rolling with welding, characterized in that: comprising a welding work platform fixed on the ground respectively, a welding mobile platform and a centering pressure device, wherein the centering pressure device and the welding work platform The plates are sequentially arranged on the ground along the conveying direction of the plates to be welded, and the welding mobile platform straddles the welding work platform; a laser head, a pre-welding pressure device and a post-weld pressure device are connected to the welding mobile platform. Both the pre-welding pressure device and the post-weld pressure device can be in contact with the plate to be welded transmitted to the welding work platform, and the laser beam focus of the laser head is located between the pre-weld pressure device and the post-weld pressure device to be welded. plate surface; the control system controls the welding work platform, the welding mobile platform, the centering pressure device, the laser head, the pre-welding pressure device and the post-weld pressure device through the data line connection; wherein the welding mobile platform includes a fixed on the ground. A first support frame, a longitudinal guide rail is provided on the first support frame, a longitudinal guide rail groove is opened on the longitudinal guide rail, a longitudinal moving mechanism is installed on the longitudinal guide rail, and a first longitudinal moving mechanism is arranged on the longitudinal moving mechanism. A moving motor and a longitudinal moving wheel, the longitudinal moving wheel is arranged in the longitudinal guide rail groove, a laser head mounting frame and two sets of positioning plates with adjustable positions are arranged on the longitudinal moving mechanism, and the laser head is installed The frame is connected with the laser head; the first moving motor is connected with the control system through a data cable; the post-weld pressure device includes a second support frame, the second support frame is installed away from the laser head The positioning plate is fixed on the welding mobile platform; the second pressure motor is arranged on the second support frame; the second pressure motor, the first pressure rod and the first pressure transmission rod are connected in sequence from top to bottom. Together, the second pressure motor is coaxially connected to the first pressure rod, the first pressure rod is provided with a first pressure sensor, and the lower end of the first pressure rod is provided with a first positioning shaft , the two groups of first pressure transmission rods are connected with the first positioning shaft, the end of each group of first pressure transmission rods is provided with a first rolling wheel, and the center of the first rolling wheel is provided with a first rolling wheel. Bearing, the first bearing is provided with a first connecting shaft for connecting the first pressure transmission rod, the end of the first connecting shaft forms a slot key, and the limit rod is pressed with the first roller through the slot key The wheels are connected; two limit plates are symmetrically arranged on the second support frame, and the limit plates are provided with key grooves for adjusting the relative positions of the limit plates and the second support frame; A wire feeding bracket is arranged on the limit plate on the side close to the laser head, and a wire feeding head is arranged on the wire feeding bracket; the second pressure motor and the first pressure sensor communicate with the control system through a data cable connect. 2.根据权利要求1所述的基于随焊碾压的激光拼焊装置,其特征在于:所述对中压力装置包括固定在地面上的支撑柱;在所述支撑柱上安装有横向导轨,在所述横向导轨上安装横向移动机构,所述横向移动机构上设有与所述横向导轨配合使用的横向移动轮,所述横向移动机构上还设有第二移动电机,推板通过横向压力传感器与所述横向移动机构相连接;所述推板上设有与所述待焊板形状相匹配的凹槽,所述第二移动电机和所述横向压力传感器通过数据线与所述控制系统连接。2. The tailor-made laser welding device based on rolling with welding according to claim 1, wherein the centering pressure device comprises a support column fixed on the ground; A lateral moving mechanism is installed on the lateral guide rail, the lateral moving mechanism is provided with a lateral moving wheel used in cooperation with the lateral guide rail, and a second moving motor is also provided on the lateral moving mechanism, and the push plate passes the lateral pressure The sensor is connected with the lateral movement mechanism; the push plate is provided with a groove matching the shape of the plate to be welded, and the second movement motor and the lateral pressure sensor communicate with the control system through a data line connect. 3.根据权利要求1或2所述的基于随焊碾压的激光拼焊装置,其特征在于:所述焊接工作平台包括固定在地面上的焊接工作基台,在所述焊接工作基台上设有焊接工作垫板,所述焊接工作垫板上开设有保护气槽,在所述焊接工作垫板两侧的焊接工作基台上分别设有两组第一压力电机,每组第一压力电机上均设有两个紧固压力装置,每个紧固压力装置上开设有紧固压力限位槽,每组紧固压力装置通过所述紧固压力限位槽连接一个紧固压板,所述两个紧固压板均设置在所述焊接工作垫板的上方,并且所述两个紧固压板之间的空隙与所述保护气槽相对应;所述第一压力电机通过数据线与所述控制系统连接。3 . The tailor-made laser welding device based on rolling with welding according to claim 1 or 2 , wherein the welding work platform comprises a welding work base fixed on the ground, and on the welding work base There is a welding work pad, a protective gas groove is opened on the welding work pad, and two sets of first pressure motors are respectively arranged on the welding work bases on both sides of the welding work pad, and each set of first pressure There are two tightening pressure devices on the motor, each tightening pressure device is provided with a tightening pressure limit groove, and each set of tightening pressure devices is connected to a tightening pressure plate through the tightening pressure limit groove, so The two fastening pressure plates are both arranged above the welding work pad, and the gap between the two fastening pressure plates corresponds to the protective gas groove; the first pressure motor is connected to the connection to the control system. 4.根据权利要求3所述的基于随焊碾压的激光拼焊装置,其特征在于:所述焊前压力装置包括第三支撑架,所述第三支撑架通过靠近激光头安装架的定位板固定在所述焊接移动平台上,第三压力电机设置在所述第三支撑架上;所述第三压力电机、第二压力杆以及第二压力传动杆由上至下依次连接在一起,其中所述第三压力电机与第二压力杆同轴连接在一起,在所述第二压力杆上设有第二压力传感器,所述第二压力杆的下端部设有第二定位轴,在所述第二定位轴上连接一组第二压力传动杆,所述第二压力传动杆的末端连接有第二碾压轮,所述第二碾压轮的圆心位置设有第二轴承,所述第二轴承内设有用于连接第二压力传动杆的第二连接轴,在所述第二压力杆的末端还设有使所述第二压力传动杆沿轴向运动的竖直定位板,所述第三压力电机与所述第二压力传感器通过数据线与所述控制系统相连接。4 . The tailor-made laser welding device based on rolling with welding according to claim 3 , wherein the pre-welding pressure device comprises a third support frame, and the third support frame is positioned by a position close to the laser head mounting frame. 5 . The plate is fixed on the welding mobile platform, and the third pressure motor is arranged on the third support frame; the third pressure motor, the second pressure rod and the second pressure transmission rod are connected together in sequence from top to bottom, The third pressure motor and the second pressure rod are coaxially connected together, a second pressure sensor is provided on the second pressure rod, and a second positioning shaft is provided at the lower end of the second pressure rod. The second positioning shaft is connected with a group of second pressure transmission rods, the end of the second pressure transmission rod is connected with a second rolling wheel, and the center of the second rolling wheel is provided with a second bearing, so The second bearing is provided with a second connecting shaft for connecting the second pressure transmission rod, and the end of the second pressure transmission rod is also provided with a vertical positioning plate for axially moving the second pressure transmission rod, The third pressure motor and the second pressure sensor are connected to the control system through data lines. 5.根据权利要求4所述的基于随焊碾压的激光拼焊装置,其特征在于:所述第一移动电机、第二移动电机、第一压力电机、第二压力电机以及第三压力电机均采用伺服电机。5. The tailor-made laser welding device based on rolling with welding according to claim 4, characterized in that: the first moving motor, the second moving motor, the first pressure motor, the second pressure motor and the third pressure motor All use servo motors. 6.一种基于权利要求4所述的基于随焊碾压的激光拼焊装置的控制方法,其特征在于:所述方法包括以下步骤:6. A control method for a tailor-made laser welding device based on rolling with welding according to claim 4, characterized in that: the method comprises the following steps: 步骤1、将待焊板置于所述对中压力装置的推板处,通过所述控制系统校准对中参数,使待焊板在所述焊接工作平台上对中并经紧固压板压紧;Step 1. Place the plate to be welded on the push plate of the centering pressure device, and calibrate the centering parameters through the control system, so that the plate to be welded is centered on the welding work platform and pressed by the tightening platen. ; 步骤2、通过调整所述焊后压力装置中的限位板与第二支撑架的相对位置,来调节当所述焊后压力装置对待焊板的表面施加预设的压力时,两个第一碾压轮在所述待焊板表面的位置;调整所述激光头的激光束焦点在所述待焊板表面的位置,使激光束焦点与靠近所述激光头的第一碾压轮之间的间距在3~5mm;通过调整所述焊前压力装置中的第三支撑架的位置来调节所述第二碾压轮在所述待焊板表面的位置,使激光束焦点与所述第二碾压轮之间的间距在100~120mm;Step 2. By adjusting the relative position of the limit plate and the second support frame in the post-weld pressure device, when the post-weld pressure device applies a preset pressure to the surface of the plate to be welded, the two first The position of the rolling wheel on the surface of the plate to be welded; adjust the position of the laser beam focus of the laser head on the surface of the plate to be welded, so that the focus of the laser beam is between the first rolling wheel close to the laser head The distance between them is 3-5mm; by adjusting the position of the third support frame in the pre-welding pressure device, adjust the position of the second rolling wheel on the surface of the plate to be welded, so that the focus of the laser beam and the first The distance between the two rollers is 100-120mm; 步骤3、调整焊接零点的位置;Step 3. Adjust the position of the welding zero point; 步骤4、通过所述控制系统设定焊接路径以及焊接参数;Step 4. Set the welding path and welding parameters through the control system; 步骤5、通过所述控制系统使所述焊后压力装置和焊前压力装置对待焊板的表面施加预设的压力;Step 5. The post-weld pressure device and the pre-weld pressure device apply a preset pressure to the surface of the plate to be welded through the control system; 步骤6、调整所述送丝头与待焊板的相对位置;Step 6. Adjust the relative position of the wire feeder and the plate to be welded; 步骤7、对待焊板实施焊接。Step 7. Weld the plate to be welded. 7.根据权利要求6所述的基于随焊碾压的激光拼焊装置的控制方法,其特征在于:所述步骤4中的焊接参数包括激光功率为1kW~6kW,离焦量为+10mm~+30mm,Ar保护气流量为10L/min~30L/min,焊接速度为0.5m/min~3m/min。7 . The control method of a laser tailored welding device based on rolling with welding according to claim 6 , wherein the welding parameters in the step 4 include a laser power of 1kW to 6kW, and a defocus amount of +10mm~ +30mm, Ar shielding gas flow is 10L/min~30L/min, welding speed is 0.5m/min~3m/min.
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