Aluminum alloy plate laser welding positioning device

Abstract

The invention relates to the technical field of plate laser welding positioning, in particular to an aluminum alloy plate laser welding positioning device which comprises a fixing plate mounted on a laser welding head, supporting frames are arranged on the two sides of the fixing plate correspondingly, and two sliding rods fixedly penetrate through the fixing plate; the two supporting frames are connected to the two ends of the two sliding rods in a sliding and sleeving mode correspondingly. When the spot welding device is used, the fixing plate is arranged on the laser welding head, and the connecting mechanism, the supporting frame and the positioning and guiding mechanism are arranged on the fixing plate, so that when spot welding is carried out on two finished aluminum alloy cold plates, a worker only needs to place the two aluminum alloy cold plates on the workbench in a mutually overlapped mode, and then the two aluminum alloy cold plates are welded on the workbench. And after the laser welding head moves to the spot welding position, the two aluminum alloy cold plates can be rapidly positioned, meanwhile, the effect of pressing the two aluminum alloy cold plates is achieved, and then the laser welding head is assisted in rapidly positioning the two aluminum alloy cold plates.

Description

Technical Field

[0001] The invention relates to the technical field of plate laser welding positioning technology, in particular to a laser welding positioning device for an aluminum alloy plate. Background Art

[0002] Laser welding is a technology that uses a high-energy-density laser beam as a heat source to melt the metal and cool and crystallize it to form a weld through the thermal coupling between the laser and the metal. For aluminum plates, due to their high reflectivity and thermal conductivity, the laser power, welding speed and other parameters need to be precisely controlled during the welding process to ensure the welding quality.

[0003] At present, when welding two existing aluminum alloy cold plates, two workers are required to overlap the two aluminum alloy cold plates and place them on a workbench, and then adjust and position the two overlapped aluminum alloy cold plates. Subsequently, each worker holds a metal plate to press the spot welding positions of the two aluminum alloy cold plates so that the welding positions of the two aluminum alloy cold plates can be tightly connected during spot welding. However, in this process, since the aluminum alloy cold plates are finished products, their surfaces are relatively smooth. At this time, the workers hold the metal plates to press the spot welding positions, which is prone to slipping. At the same time, the workers' hands are close to the position of the laser welding head, which poses certain safety hazards. For this reason, we propose an aluminum alloy plate laser welding positioning device. Summary of the invention

[0004] The purpose of the present invention is to provide an aluminum alloy plate laser welding positioning device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a laser welding positioning device for aluminum alloy plate, comprising a fixing plate installed on a laser welding head, support frames are respectively provided on both sides of the fixing plate, two sliding rods are fixedly penetrated on the fixing plate, the two support frames are respectively slidably sleeved on the two ends of the two sliding rods, and a connecting mechanism is provided on the laser welding head, and the connecting mechanism is used to adjust the positions of the two support frames;

[0006] The two support frames are both provided with positioning and guiding mechanisms, and the two positioning and guiding mechanisms are used to position the spot welding positions of the two aluminum alloy cold plates and press the spot welding positions of the two aluminum alloy cold plates at the same time.

[0007] Furthermore, the connecting mechanism includes a first electric push rod, a push plate and a guide member, the first electric push rod is fixedly mounted on the laser welding head, and the output end of the first electric push rod is fixedly connected to the push plate, the push plate is V-shaped, and two push grooves are provided on the push plate, the guide member is arranged at the push groove, and the guide member is connected to the support frame.

[0008] Furthermore, the guide member includes a guide rod and a guide plate, the guide rod slides through the push groove, one end of the guide rod is fixedly connected to the support frame, and the other end of the guide rod is fixedly connected to the guide plate, and the guide plate is slidably connected to the push plate.

[0009] Furthermore, the positioning and guiding mechanism includes a positioning member, a detection member, a protective shell and a locking and pressing member. Two receiving grooves are provided on one side of the support frame close to the spot welding position of the aluminum alloy cold plate. The two receiving grooves correspond to the positions of the two aluminum alloy cold plates respectively. An opening is provided at the receiving groove close to the spot welding position of the aluminum alloy cold plate. The positioning member is arranged at the receiving groove, and the positioning member is used to adjust the spot welding position of the aluminum alloy cold plate.

[0010] The detection member is located outside the opening, and the two detection members are fixedly mounted on the support frame, and the two detection members are used to detect the position of the aluminum alloy cold plate;

[0011] The protective shells are provided with two, the two protective shells are respectively located above and below the two aluminum alloy cold plates, and the two protective shells are fixedly connected to the support frame, the locking pressing pieces are respectively installed on the sides of the two protective shells away from each other, and the two locking pressing pieces press the spot welding positions of the two aluminum alloy cold plates against each other;

[0012] The support frame is provided with a driving mechanism, and the driving mechanism is used to synchronously drive the two locking pressing members, and through the provided positioning guide mechanism, the two aluminum alloy cold plates are adjusted and positioned relative to each other.

[0013] Furthermore, the alignment member includes a guide wheel, a rotating shaft, a synchronization member, a support shaft and a rotating member. There are multiple guide wheels, and the multiple guide wheels all pass through the opening. The rotating shaft passes through the guide wheel, and the rotating shaft is rotatably connected to the accommodating groove. The synchronization member is installed on multiple rotating shafts, and the synchronization member is used to synchronously drive the multiple rotating shafts. One end of the support shaft is fixedly connected to one of the rotating shafts, and the other end of the support shaft is connected to the rotating member. The rotating member is located on the support frame, and the alignment member is provided to achieve the function of alignment and guiding the spot welding position of the aluminum alloy cold plate.

[0014] Furthermore, the synchronous part includes a synchronous gear, a limit rod and a synchronous tooth chain. There are multiple synchronous gears, and the multiple synchronous gears are respectively fixedly mounted on multiple rotating shafts. The synchronous gear chain is used to transmit the multiple synchronous gears. There are multiple limit rods, and the multiple limit rods are respectively fixedly installed in the accommodating grooves, and the multiple limit rods limit the synchronous tooth chain. Through the synchronous parts, the function of synchronously driving the multiple rotating shafts is realized.

[0015] Furthermore, the detection component includes a connecting shell, a pressure sensor, an extrusion plate, a connecting spring and an arc plate. The connecting shell is fixedly installed on one side of the support frame close to the spot welding position of the aluminum alloy cold plate, and the connecting shell corresponds to the position of one of the aluminum alloy cold plates. The pressure sensor is installed inside the connecting shell, and one side of the extrusion plate is fixedly connected to the pressure sensor. A plurality of connecting springs are provided, and the two ends of the plurality of connecting springs are respectively fixedly connected to the extrusion plate and the arc plate. The arc plate slides through the opening on the connecting shell, and one side of the arc plate contacts the outer surface of the aluminum alloy cold plate. The detection component is provided, thereby realizing the function of detecting the position of the aluminum alloy cold plate.

[0016] Furthermore, the locking pressing member includes a positioning frame, a positioning shaft, a swing support rod, a connecting support rod, a pressing plate and a positioning member, the positioning frame is fixedly connected to the protective shell, and the positioning shaft is fixedly installed on the positioning frame, the swing support rod is rotatably sleeved on the outside of the positioning shaft, one end of the swing support rod is rotatably connected to the connecting support rod through a pin shaft, the other end of the swing support rod is connected to the driving mechanism, and the other end of the connecting support rod is rotatably connected to the pressing plate through a rotating shaft, the pressing plate is located on the outer surface of the spot welding position of the aluminum alloy cold plate, the positioning member is arranged between the pressing plate and the positioning frame, and the locking pressing member is provided to achieve the function of locking the aluminum alloy cold plate during spot welding.

[0017] Furthermore, the positioning member includes a slide rail and a slider, one end of the slider is fixedly connected to the pressing plate, and the other end of the slider is slidably sleeved on the slide rail, and the slide rail is fixedly installed inside the positioning frame, and the pressing plate is limited by the positioning member.

[0018] Further, the driving mechanism includes a fixed shaft and a driving plate, the fixed shaft is provided with two, one end of the swing support rod is provided with a groove, and the fixed shaft is fixedly installed in the groove, the driving plate is provided with a moving opening, and the driving plate is slidably sleeved on the outer side of the fixed shaft through the moving opening, and the ends of the two driving plates close to each other are both provided with connecting ends, and the support frame is provided with two L-shaped limiting plates, and the two connecting ends are respectively slidably connected between the two limiting plates;

[0019] A second electric push rod is installed on the support frame, and an adjustment plate is fixedly connected to the output end of the second electric push rod, and the adjustment plate is in a Y shape, and both ends of the adjustment plate are guide ends, and guide grooves are provided at the guide ends;

[0020] A connecting port is also provided at one end of the two driving plates that are close to each other, and a fixing rod is fixedly connected to the connecting port. The guide end slides through the connecting port, and the guide groove is slidably sleeved on the outside of the fixing rod. Through the driving mechanism provided, the two swing support rods are synchronously driven.

[0021] The present invention has at least the following beneficial effects:

[0022] 1. When the present invention is used, by providing a fixing plate on the laser welding head, and providing a connecting mechanism, a supporting frame and a positioning guide mechanism on the fixing plate, when spot welding two finished aluminum alloy cold plates, the staff only needs to overlap the two aluminum alloy cold plates and place them on the workbench. Then, after the laser welding head moves to the spot welding position, the two aluminum alloy cold plates can be quickly positioned and pressed against each other, thereby assisting the laser welding head to quickly position the two aluminum alloy cold plates, and further realizing rapid spot welding of the aluminum alloy cold plates.

[0023] 2. The two sets of positioning and guiding mechanisms in the present invention can adjust the two aluminum alloy cold plates separately and realize the function of synchronous positioning, further ensuring the welding accuracy and stability of the aluminum alloy cold plate spot welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a side view of the overall structure of the present invention;

[0026] Figure 3 A top view of the push plate of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the connecting mechanism of the present invention;

[0028] Figure 5 It is a schematic diagram of the sliding rod structure of the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the pressing plate of the present invention;

[0030] Figure 7 It is a schematic diagram of the structure of the driving mechanism of the present invention;

[0031] Figure 8 A top view of the positioning member structure of the present invention;

[0032] Fig. 9 This is a schematic diagram of the guide wheel structure of the present invention;

[0033] Fig.10 This is a schematic diagram of the internal structure of the connecting shell of the present invention;

[0034] Fig.11 It is a schematic diagram of the limit rod structure of the present invention;

[0035] Fig.12 This is a schematic diagram of the support structure of the present invention;

[0036] Fig.13 For the present invention Fig.12 Schematic diagram of the enlarged structure of area A in the middle.

[0037] In the figure: 1-laser welding head; 2-fixed plate; 3-support frame; 31-accommodating groove; 32-opening; 4-sliding rod; 5-connecting mechanism; 51-first electric push rod; 52-pushing plate; 521-pushing groove; 53-guide member; 531-guide rod; 532-guide plate; 6-positioning guide mechanism; 61-alignment member; 611-guide wheel; 612-rotating shaft; 613-synchronizing member; 6131-synchronizing gear; 6132-limiting rod; 6133-synchronizing tooth chain; 614-supporting shaft; 62-detecting member; 621-connecting shell; 622-pressure sensor; 623-extrusion plate; 624-connecting spring; 625-arc plate; 63-protective shell; 7-locking pressing piece; 71-positioning frame; 72-positioning shaft; 73-swinging support rod; 731-groove; 74-connecting support rod; 75-pressing plate; 76-positioning piece; 761-slide rail; 762-slider; 8-driving mechanism; 81-fixed shaft; 82-driving plate; 821-moving port; 822-connecting port; 83-connecting end; 84-limiting plate; 85-second electric push rod; 86-adjusting plate; 861-guide end; 8611-guide groove; 87-fixed rod; 9-rotating piece; 91-first bevel gear; 92-second bevel gear; 93-first driving shaft; 94-second driving shaft; 95-driving gear; 96-driving tooth chain; 97-driving motor. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Embodiment 1

[0040] See also Figures 1 to 3 A laser welding positioning device for aluminum alloy plates comprises a fixing plate 2 mounted on a laser welding head 1, support frames 3 are respectively arranged on both sides of the fixing plate 2, two slide bars 4 are fixedly penetrated on the fixing plate 2, the two support frames 3 are respectively slidably sleeved on the two ends of the two slide bars 4, and a connecting mechanism 5 is provided on the laser welding head 1, and the connecting mechanism 5 is used to adjust the positions of the two support frames 3;

[0041] In this embodiment, the two support frames 3 are actually located outside the shell of the laser welding head 1 and close to the head of the laser welding head 1;

[0042] See also Figure 4 The connecting mechanism 5 includes a first electric push rod 51, a pushing plate 52 and a guide member 53. The first electric push rod 51 is fixedly installed on the laser welding head 1, and the output end of the first electric push rod 51 is fixedly connected to the pushing plate 52. The pushing plate 52 is V-shaped, and two pushing grooves 521 are provided on the pushing plate 52. The guide member 53 is arranged at the pushing groove 521, and the guide member 53 is connected to the support frame 3.

[0043] The guide member 53 includes a guide rod 531 and a guide plate 532. The guide rod 531 slides through the push groove 521. One end of the guide rod 531 is fixedly connected to the support frame 3, and the other end of the guide rod 531 is fixedly connected to the guide plate 532. The guide plate 532 is slidably connected to the push plate 52.

[0044] Specific implementation method: In this embodiment, the spot welding positions of the two aluminum alloy cold plates are both located at the raised positions of the two aluminum alloy cold plates. Therefore, when spot welding is performed on two overlapping aluminum alloy cold plates on the workbench, the welding head moves to the spot welding position. At this time, the two support frames 3 are both located on the outside of the spot welding position. Subsequently, the first electric push rod 51 is operated to move the push plate 52. When the push plate 52 moves, the two push grooves 521 thereon move synchronously. At this time, the support frames 3 are limited by the guide rod 531 and the slide rod 4, so that the two support frames 3 move toward each other until the sides of the two support frames 3 that are close to each other are in contact with the outer sides of the raised positions of the two aluminum alloy cold plates.

[0045] The two support frames 3 are both provided with positioning guide mechanisms 6, which are used to position the spot welding positions of the two aluminum alloy cold plates and press the spot welding positions of the two aluminum alloy cold plates;

[0046] See also Figures 4 to 13 The positioning guide mechanism 6 includes a positioning member 61, a detection member 62, a protective shell 63 and a locking pressing member 7. Two receiving grooves 31 are provided on one side of the support frame 3 close to the spot welding position of the aluminum alloy cold plate. The two receiving grooves 31 correspond to the positions of the two aluminum alloy cold plates respectively. The receiving groove 31 is close to the spot welding position of the aluminum alloy cold plate. An opening 32 is provided at the receiving groove 31. The positioning member 61 is arranged at the receiving groove 31. The positioning member 61 is used to adjust the spot welding position of the aluminum alloy cold plate.

[0047] The detection member 62 is located outside the opening 32, and the two detection members 62 are fixedly mounted on the support frame 3, and the two detection members 62 are used to detect the position of the aluminum alloy cold plate;

[0048] There are two protective shells 63, which are respectively located above and below the two aluminum alloy cold plates, and the two protective shells 63 are fixedly connected to the support frame 3. The locking pressing members 7 are respectively installed on the sides of the two protective shells 63 that are away from each other, and the two locking pressing members 7 press the spot welding positions of the two aluminum alloy cold plates against each other.

[0049] A driving mechanism 8 is provided on the support frame 3 , and the driving mechanism 8 is used to synchronously drive the two locking pressing members 7 .

[0050] See also Figures 9 to 13 The alignment member 61 includes a guide wheel 611, a rotating shaft 612, a synchronous member 613, a support shaft 614 and a rotating member 9. There are multiple guide wheels 611, and the multiple guide wheels 611 all pass through the opening 32. The rotating shaft 612 passes through the guide wheel 611, and the rotating shaft 612 is rotatably connected to the accommodating groove 31. The synchronous member 613 is installed at the multiple rotating shafts 612, and the synchronous member 613 is used to synchronously drive the multiple rotating shafts 612. One end of the support shaft 614 is fixedly connected to one of the rotating shafts 612, and the other end of the support shaft 614 is connected to the rotating member 9. The rotating member 9 is located on the support frame 3.

[0051] The synchronous member 613 includes a synchronous gear 6131, a limiting rod 6132 and a synchronous toothed chain 6133. There are multiple synchronous gears 6131, and the multiple synchronous gears 6131 are respectively fixedly sleeved on the multiple rotating shafts 612. The synchronous gear 6131 chain is used to transmit the multiple synchronous gears 6131. ​​There are multiple limiting rods 6132, and the multiple limiting rods 6132 are respectively fixedly installed in the accommodating groove 31, and the multiple limiting rods 6132 limit the synchronous toothed chain 6133.

[0052] Specific implementation process: while the laser welding head 1 moves along the spot welding position of the two aluminum alloy cold plates, the ends of the two support frames 3 first contact the two aluminum alloy cold plates to achieve preliminary adjustment and positioning of the aluminum alloy cold plates. Subsequently, the guide wheels 611 at the two support frames 3 contact the positions of the aluminum alloy cold plates, and after the relative positions of the two aluminum alloy cold plates are detected by the detection component 62, when the position of one of the aluminum alloy cold plates is offset from the position of the other aluminum alloy cold plate, the corresponding detection component 62 sends the detected signal to the controller, and the rotating component 9 runs, so that the rotating components 9 on the same plane on the two support frames 3 run, so that the multiple rotating shafts 612 at the corresponding aluminum alloy cold plates are guided by the synchronous gear 6131 and the gear chain, so as to achieve the function of correcting the aluminum alloy cold plate, further aligning the two superimposed aluminum alloy cold plates with each other, and further achieving the function of positioning the aluminum alloy cold plate during welding.

[0053] See also Fig.10 The detection member 62 includes a connecting shell 621, a pressure sensor 622, an extrusion plate 623, a connecting spring 624 and an arc plate 625. The connecting shell 621 is fixedly mounted on one side of the support frame 3 close to the spot welding position of the aluminum alloy cold plate, and the connecting shell 621 corresponds to the position of one of the aluminum alloy cold plates. The pressure sensor 622 is mounted inside the connecting shell 621, and one side of the extrusion plate 623 is fixedly connected to the pressure sensor 622. A plurality of connecting springs 624 are provided, and the two ends of the plurality of connecting springs 624 are fixedly connected to the extrusion plate 623 and the arc plate 625, respectively. The arc plate 625 slides through the opening 32 on the connecting shell 621, and one side of the arc plate 625 contacts the outer surface of the aluminum alloy cold plate.

[0054] In this embodiment, the plate contacted by the outer surface of the aluminum alloy cold plate is in an arc shape, and the shape of the arc plate 625 can correspond to the edge shape of the protrusion of the aluminum alloy cold plate, and then when the two support frames 3 move toward the protrusion position of the aluminum alloy cold plate through the laser welding head 1, the four arc plates 625 are respectively located on the outside of the protrusion position, and then, when the two support frames 3 move toward each other, the four arc plates 625 move toward each other in pairs until they squeeze the protrusion position of the spot welding of the aluminum alloy cold plate, and the arc plate 625 squeezes the extrusion plate 623 through the connecting spring 624, and when the two support frames 3 stop running, the four pressure sensors 622 respectively send the detection signal value to the controller, and when the signal value detected by the pressure sensor 622 is greater than the set value, the two rotating parts 9 corresponding to the protrusion position of the aluminum alloy cold plate are operated, so that the aluminum alloy cold plate is pushed by the multiple guide wheels 611, so that the aluminum alloy cold plate is away from the arc plate 625 until the signal value detected by the pressure sensor 622 reaches the set value;

[0055] When the signal values ​​detected by the two pressure sensors 622 do not reach the set values, the rotating member 9 at the corresponding aluminum alloy cold plate operates, so that the multiple guide wheels 611 drive the aluminum alloy cold plate until the two aluminum alloy cold plates are aligned up and down.

[0056] See also Figures 5 to 8 The locking pressing member 7 includes a positioning frame 71, a positioning shaft 72, a swing support rod 73, a connecting support rod 74, a pressing plate 75 and a positioning member 76. The positioning frame 71 is fixedly connected to the protective shell 63, and the positioning shaft 72 is fixedly installed on the positioning frame 71. The swing support rod 73 is rotatably sleeved on the outer side of the positioning shaft 72. One end of the swing support rod 73 is rotatably connected to the connecting support rod 74 through a pin shaft, and the other end of the swing support rod 73 is connected to the driving mechanism 8. The other end of the connecting support rod 74 is rotatably connected to the pressing plate 75 through a rotating shaft. The pressing plate 75 is located on the outer surface of the aluminum alloy cold plate spot welding position, and the positioning member 76 is arranged between the pressing plate 75 and the positioning frame 71.

[0057] The positioning member 76 includes a slide rail 761 and a slider 762 . One end of the slider 762 is fixedly connected to the pressing plate 75 , and the other end of the slider 762 is slidably sleeved on the slide rail 761 . The slide rail 761 is fixedly installed inside the positioning frame 71 .

[0058] The driving mechanism 8 includes a fixed shaft 81 and a driving plate 82. The fixed shaft 81 is provided with two. One end of the swing support rod 73 is provided with a groove 731, and the fixed shaft 81 is fixedly installed at the groove 731. The driving plate 82 is provided with a moving opening 821, and the driving plate 82 is slidably sleeved on the outer side of the fixed shaft 81 through the moving opening 821. The ends of the two driving plates 82 that are close to each other are both provided with a connecting end 83. The support frame 3 is provided with two L-shaped limiting plates 84, and the two connecting ends 83 are respectively slidably connected between the two limiting plates 84;

[0059] A second electric push rod 85 is installed on the support frame 3, and an adjustment plate 86 is fixedly connected to the output end of the second electric push rod 85, and the adjustment plate 86 is in a Y shape, and the two ends of the adjustment plate 86 are guide ends 861, and the guide ends 861 are provided with guide grooves 8611;

[0060] A connection port 822 is further provided at one end of the two driving plates 82 close to each other, and a fixing rod 87 is fixedly connected to the connection port 822 . The guide end 861 slides through the connection port 822 , and the guide groove 8611 slides on the outside of the fixing rod 87 .

[0061] Specific implementation process: after the two aluminum alloy cold plates are adjusted, the two second electric push rods 85 are operated, so that the adjustment plate 86 moves along the two driving plates 82, and when the adjustment plate 86 moves, the fixing rod 87 is limited by the guide groove 8611, and the fixing rod 87 is limited by the driving plate 82. At this time, the two driving plates 82 at the two support frames 3 are respectively guided by the connecting end 83 and the limiting plate 84, and the two driving plates 82 are further moved in the direction away from each other;

[0062] When the driving plate 82 moves, the swing support rod 73 rotates around the positioning shaft 72 as the center through the moving port 821 and the limiting guide of the fixed shaft 81, so that the other end of the swing support rod 73 drives the pressing plate 75 to move along the direction of the aluminum alloy cold plate through the connecting support rod 74, until the four pressing plates 75 are distributed in pairs above and below the spot welding positions of the two aluminum alloy cold plates, that is, located at the raised positions of the spot welding of the two aluminum alloy cold plates, and the four pressing plates 75 press and fix the aluminum alloy cold plates.

[0063] Embodiment 2

[0064] See also Figures 11 to 13, Embodiment 2 further explains the rotating member 9 in Embodiment 1, specifically: the rotating member 9 includes a first bevel gear 91, a second bevel gear 92, a first drive shaft 93, a second drive shaft 94, a drive gear 95, a drive gear chain 96 and a drive motor 97, the first bevel gear 91 is fixedly connected to one end of the support shaft 614, and the first bevel gear 91 is meshed with the second bevel gear 92, one end of the first drive shaft 93 is fixedly connected to the second bevel gear 92, a support groove is provided on the support frame 3, and one end of the first drive shaft 93 and the second drive shaft 94 are both rotatably connected at the support groove, two drive gears 95 are provided, the two drive gears 95 are fixedly sleeved on the first drive shaft 93 and the second drive shaft 94 respectively, and the drive gear chain 96 is transmission-connected between the two drive gears 95, the drive motor 97 is installed on the support frame 3, and the drive motor 97 is used to drive the second drive shaft 94;

[0065] When the support shaft 614 is driven, the driving motor 97 is operated, so that the second driving shaft 94 further drives the first driving shaft 93 to rotate through the driving gear 95 and the driving gear chain 96. When the first driving shaft 93 rotates, the first bevel gear 91 is driven to rotate through the second bevel gear 92, and the support shaft 614 at the first bevel gear 91 drives the rotating shaft 612 thereon to rotate relative to the support frame 3.

[0066] In this embodiment, the rotating member 9 is composed of a plurality of gears, which can keep the driving motor 97 away from the spot welding position, thereby protecting the driving motor 97 and driving the support shaft 614 at the same time.

[0067] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser welding positioning device for aluminum alloy plates, comprising a fixing plate (2) mounted on a laser welding head (1), characterized in that: Support frames (3) are respectively provided on both sides of the fixing plate (2), two sliding rods (4) are fixedly passed through the fixing plate (2), the two support frames (3) are respectively slidably sleeved on the two ends of the two sliding rods (4), and a connecting mechanism (5) is provided on the laser welding head (1), and the connecting mechanism (5) is used to adjust the positions of the two support frames (3); The two support frames (3) are each provided with a positioning guide mechanism (6), and the two positioning guide mechanisms (6) are used to position the spot welding positions of the two aluminum alloy cold plates and press the spot welding positions of the two aluminum alloy cold plates.

2. The laser welding positioning device for aluminum alloy sheet according to claim 1, characterized in that: The connecting mechanism (5) comprises a first electric push rod (51), a pushing plate (52) and a guide member (53); the first electric push rod (51) is fixedly mounted on the laser welding head (1); the output end of the first electric push rod (51) is fixedly connected to the pushing plate (52); the pushing plate (52) is V-shaped, and two pushing grooves (521) are provided on the pushing plate (52); the guide member (53) is arranged at the pushing grooves (521), and the guide member (53) is connected to the support frame (3).

3. The laser welding positioning device for aluminum alloy sheet according to claim 2, characterized in that: The guide member (53) comprises a guide rod (531) and a guide plate (532); the guide rod (531) slides through the push groove (521); one end of the guide rod (531) is fixedly connected to the support frame (3); and the other end of the guide rod (531) is fixedly connected to the guide plate (532); and the guide plate (532) is slidably connected to the push plate (52).

4. The laser welding positioning device for aluminum alloy sheet according to claim 1, characterized in that: The positioning guide mechanism (6) comprises a positioning member (61), a detection member (62), a protective shell (63) and a locking pressing member (7); two receiving grooves (31) are provided on one side of the support frame (3) close to the spot welding position of the aluminum alloy cold plate; the two receiving grooves (31) respectively correspond to the positions of two aluminum alloy cold plates; an opening (32) is provided on the receiving groove (31) close to the spot welding position of the aluminum alloy cold plate; the positioning member (61) is arranged at the receiving groove (31); and the positioning member (61) is used to adjust the spot welding position of the aluminum alloy cold plate; The detection member (62) is located outside the opening (32), the two detection members (62) are fixedly mounted on the support frame (3), and the two detection members (62) are used to detect the position of the aluminum alloy cold plate; Two protective shells (63) are provided, the two protective shells (63) are respectively located above and below the two aluminum alloy cold plates, and the two protective shells (63) are fixedly connected to the support frame (3), the locking pressing pieces (7) are respectively installed on the sides of the two protective shells (63) that are away from each other, and the two locking pressing pieces (7) press the spot welding positions of the two aluminum alloy cold plates against each other; The support frame (3) is provided with a driving mechanism (8), and the driving mechanism (8) is used to synchronously drive the two locking pressing members (7).

5. The laser welding positioning device for aluminum alloy sheet according to claim 4, characterized in that: The alignment member (61) comprises a guide wheel (611), a rotating shaft (612), a synchronous member (613), a support shaft (614) and a rotating member (9). A plurality of guide wheels (611) are provided, and the plurality of guide wheels (611) all pass through the opening (32). The rotating shaft (612) passes through the guide wheel (611), and the rotating shaft (612) is rotatably connected to the accommodating groove (31). The synchronous member (613) is installed on the plurality of rotating shafts (612), and the synchronous member (613) is used to synchronously drive the plurality of rotating shafts (612). One end of the support shaft (614) is fixedly connected to one of the rotating shafts (612), and the other end of the support shaft (614) is connected to the rotating member (9). The rotating member (9) is located on the support frame (3).

6. The laser welding positioning device for aluminum alloy sheet according to claim 5, characterized in that: The synchronous component (613) comprises a synchronous gear (6131), a limiting rod (6132) and a synchronous toothed chain (6133); a plurality of the synchronous gears (6131) are provided, and the plurality of the synchronous gears (6131) are respectively fixedly sleeved on a plurality of rotating shafts (612); the synchronous gear (6131) chain is used to transmit the plurality of synchronous gears (6131); a plurality of the limiting rods (6132) are provided, and the plurality of the limiting rods (6132) are respectively fixedly mounted inside the accommodating groove (31), and the plurality of limiting rods (6132) limit the synchronous toothed chain (6133).

7. The laser welding positioning device for aluminum alloy sheet according to claim 4, characterized in that: The detection component (62) comprises a connecting shell (621), a pressure sensor (622), an extrusion plate (623), a connecting spring (624) and an arc plate (625); the connecting shell (621) is fixedly mounted on a side of the support frame (3) close to a spot welding position of the aluminum alloy cold plate, and the connecting shell (621) corresponds to a position of one of the aluminum alloy cold plates; the pressure sensor (622) is mounted inside the connecting shell (621), and one side of the extrusion plate (623) is fixedly connected to the pressure sensor (622); a plurality of connecting springs (624) are provided, and two ends of the plurality of connecting springs (624) are fixedly connected to the extrusion plate (623) and the arc plate (625), respectively; the arc plate (625) slides through an opening (32) on the connecting shell (621), and one side of the arc plate (625) contacts an outer surface of the aluminum alloy cold plate.

8. The laser welding positioning device for aluminum alloy sheet according to claim 4, characterized in that: The locking pressing member (7) comprises a positioning frame (71), a positioning shaft (72), a swing support rod (73), a connecting support rod (74), a pressing plate (75) and a positioning member (76); the positioning frame (71) is fixedly connected to the protective shell (63), and the positioning shaft (72) is fixedly mounted on the positioning frame (71); the swing support rod (73) is rotatably sleeved on the outside of the positioning shaft (72); one end of the swing support rod (73) is rotatably connected to the connecting support rod (74) via a pin shaft; the other end of the swing support rod (73) is connected to the driving mechanism (8); the other end of the connecting support rod (74) is rotatably connected to the pressing plate (75) via a rotating shaft; the pressing plate (75) is located on the outer surface of the aluminum alloy cold plate at the spot welding position; and the positioning member (76) is arranged between the pressing plate (75) and the positioning frame (71).

9. The laser welding positioning device for aluminum alloy sheet according to claim 8, characterized in that: The positioning member (76) comprises a slide rail (761) and a slider (762), one end of the slider (762) is fixedly connected to the pressing plate (75), and the other end of the slider (762) is slidably sleeved on the slide rail (761), and the slide rail (761) is fixedly mounted inside the positioning frame (71).

10. The laser welding positioning device for aluminum alloy plate according to claim 8, characterized in that: The driving mechanism (8) comprises a fixed shaft (81) and a driving plate (82), two fixed shafts (81) are provided, one end of the swing support rod (73) is provided with a groove (731), and the fixed shaft (81) is fixedly installed at the groove (731), a moving opening (821) is provided on the driving plate (82), and the driving plate (82) is slidably sleeved on the outer side of the fixed shaft (81) through the moving opening (821), and the ends of the two driving plates (82) close to each other are both provided with a connecting end (83), and the support frame (3) is provided with two L-shaped limiting plates (84), and the two connecting ends (83) are respectively slidably connected between the two limiting plates (84); A second electric push rod (85) is mounted on the support frame (3), and an adjustment plate (86) is fixedly connected to the output end of the second electric push rod (85), and the adjustment plate (86) is in a Y shape, and both ends of the adjustment plate (86) are guide ends (861), and guide grooves (8611) are provided at the guide ends (861); A connection port (822) is further provided at one end of the two drive plates (82) close to each other, and a fixing rod (87) is fixedly connected to the connection port (822), the guide end (861) slides through the connection port (822), and the guide groove (8611) slides and sleeves on the outside of the fixing rod (87).

Images