Laser welding device for aluminum alloy plate

Abstract

The application relates to the technical field of laser welding, in particular to an aluminum alloy medium plate laser welding device, which comprises a laser welding machine body used for simultaneously welding multiple aluminum alloy medium plates, a first supporting table and a second supporting table are sequentially arranged at the entrance of the laser welding machine body, and the multiple aluminum alloy medium plates are placed on the table top between the first supporting table and the second supporting table; a position adjusting mechanism is arranged on the side, away from the second supporting table, of the first supporting table; the aluminum alloy medium plate laser welding device can precisely adjust the interval between the multiple aluminum alloy medium plates and the position of the end part, then, the interval adjusting mechanism is matched, the interval between the multiple aluminum alloy medium plates with the adjusted interval is further precisely controlled, the precision of the welding seams between the multiple aluminum alloy medium plates is ensured, and the multiple aluminum alloy medium plates are precisely welded.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of laser welding, in particular to an aluminum alloy medium plate laser welding device. BACKGROUND

[0002] Aluminum alloy has the advantages of low density, high strength and good corrosion resistance, and is widely used in the fields of automobile industry, new energy, aerospace and building industry. At present, laser welding has been widely used in the production and manufacturing of aluminum alloy products. Compared with the traditional welding method, laser welding can provide higher production efficiency, better weld quality, realize high-precision welding of complex structures and automation, etc.

[0003] At present, when the aluminum alloy whole plate in the existing building industry is welded, a plurality of aluminum alloy medium plates of a certain length are spliced, and then the plurality of spliced aluminum alloy medium plates are simultaneously welded at a plurality of weld seams by a laser welding machine. However, during welding, the plurality of aluminum alloy medium plates are spliced by manual operation, and then flipped and pushed into the aluminum alloy welding machine. In this process, the connection gap between the plurality of aluminum alloy medium plates cannot be guaranteed. For example, if the connection gap between the aluminum whole plates is too large or too small, it will affect the formation of the weld. If the gap is too large, the weld will be insufficient, resulting in incomplete fusion or incomplete penetration defects. If the gap is too small, the welding difficulty will be increased, and even the weld will crack. Therefore, we propose an aluminum alloy medium plate laser welding device. SUMMARY

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

[0005] To achieve the above purpose, the present application provides the following technical scheme: an aluminum alloy medium plate laser welding device, comprising a laser welding machine body for simultaneously welding a plurality of aluminum alloy medium plates, a first support table and a second support table are arranged in sequence at the inlet of the laser welding machine body, and the plurality of aluminum alloy medium plates are placed on the table surface between the first support table and the second support table.

[0006] The side of the first support table away from the second support table is provided with a position adjusting mechanism, and the position adjusting mechanism is used for synchronously adjusting the end and position of the plurality of aluminum alloy medium plates.

[0007] A connection distance adjusting mechanism is arranged between the first support table and the second support table, and the connection distance adjusting mechanism is used for adjusting the connection gap between the plurality of aluminum alloy medium plates while assisting the aluminum alloy medium plates to enter the inside of the laser welding machine body.

[0008] The position adjusting mechanism comprises a supporting base, a lifting cylinder, a supporting plate, rotating shafts, a synchronous rotating part and an aggregation guide part.

[0009] The rotating shafts are provided in plurality and equidistantly arranged on the supporting plate, and the rotating shafts are rotatably connected to the supporting plate.

[0010] The synchronous rotating part comprises rotating gears, gear strips, a connecting plate and a pushing cylinder.

[0011] The aggregation guide part comprises reciprocating parts, connecting shells, end contact detecting parts and pushing parts.

[0012] The reciprocating part comprises a swing rod, connecting shafts, linkage rods and linkage shafts.

[0013] The end contact detection piece comprises a positioning shaft, an L-shaped rod, a connecting spring, a pressure sensor, an end roller and a side stop roller, the positioning shaft is rotationally connected at the end of the connecting shell, the L-shaped rod is fixedly sleeved at the outside of the positioning shaft at the center, one end of the connecting spring is fixedly connected with the side of the L-shaped rod away from the first support table, and the other end of the connecting spring is fixedly connected with the pressure sensor, a fixed plate is fixedly installed on one side of the pressure sensor, and the fixed plate is fixedly installed at the top end of the connecting shell, the end roller is rotationally connected on the L-shaped rod and close to one end of the X-axis of the connecting shell;

[0014] The side stop roller is rotationally connected at the other end of the L-shaped rod, and the end contact piece is arranged, so that the position of the aluminum alloy medium plate is detected.

[0015] The pushing piece comprises a pushing roller and a synchronous rotating piece, the pushing roller is provided in plurality, the plurality of pushing rollers are rotationally connected on the connecting shell, and the synchronous rotating piece is installed inside the connecting shell and is used for driving the plurality of pushing rollers in the same direction, the pushing piece is arranged, so that the aluminum alloy medium plate is pushed.

[0016] The connecting distance adjusting mechanism comprises a fixed base, a moving base, a moving frame, a turnover plate, a turnover piece and a distance adjusting piece, the fixed base is located between the first support table and the second support table, the fixed base is used for driving the moving base to move towards the second support table, and the second support table is provided with a moving opening;

[0017] The moving frame is slidably connected on the moving base, and the moving base is provided with a moving piece used for driving the moving frame;

[0018] The turnover piece is installed on the moving frame and is used for driving the turnover plate, the distance adjusting piece is installed on one side of the turnover plate, and the connecting distance adjusting mechanism is arranged, so that the welding distance between the plurality of aluminum alloy medium plates is synchronously and accurately adjusted.

[0019] The distance adjusting piece comprises an upper support frame, a lower support frame, a connecting cylinder and a connecting piece, one side of the lower support frame is fixedly connected with the turnover plate, and the connecting cylinder is fixedly installed on the lower support frame, the output end of the connecting cylinder is fixedly connected with the upper support frame, a plurality of positioning frames are equidistantly arranged on the sides of the upper support frame and the lower support frame away from each other, the connecting piece is provided in two, the two connecting pieces are connected with the upper support frame and the lower support frame respectively, and the connecting piece is used for connecting the plurality of positioning frames, a reciprocating cylinder is installed on the upper support frame, a reciprocating plate is fixedly installed at the output end of the reciprocating cylinder, a positioning opening is arranged on the upper support frame and corresponds to the position of the reciprocating plate, and the reciprocating plate slidably penetrates through the positioning opening and is fixedly connected with one of the positioning frames.

[0020] The upper support frame and the lower support frame are provided with a synchronous part between two positioning frames;

[0021] Both ends of the positioning frame are rotatably connected with rotating sleeves, and the two rotating sleeves are drivingly connected with a clamping belt, the upper support frame and the lower support frame are provided with a transmission part for synchronously driving a plurality of rotating sleeves, and the gap between the aluminum alloy medium plates is adjusted by the distance adjusting part.

[0022] The transmission part includes a transmission rod and a driving motor, the transmission rod is provided with two ends, one end of the transmission rod is rotatably connected with the upper support frame, and the two transmission rods are respectively slidably penetrated through a plurality of guide holes, the driving motor is used for driving one of the transmission rods, and the driving motor is fixedly installed on the upper support frame, and the clamping belt at the plurality of positioning frames is synchronously driven by the transmission part.

[0023] The present application has at least the following advantages:

[0024] When the present application is used, the first support table and the second support table are sequentially arranged at the entrance of the laser welding machine body, so that the workers can stably place a plurality of aluminum alloy medium plates on the table between the first support table and the second support table, and the position adjusting mechanism is provided to accurately adjust the distance between the plurality of aluminum alloy medium plates and the position of the end part, and then the connection distance adjusting mechanism is connected to further accurately control the gap between the plurality of aluminum alloy medium plates with adjusted distance, so as to ensure the accuracy of the welding seam between the plurality of aluminum alloy medium plates, and to further realize accurate welding between the aluminum alloy medium plates.

[0025] The connection distance adjusting mechanism in the present application not only accurately adjusts the gap between the plurality of aluminum alloy medium plates, but also assists in pushing the aluminum alloy medium plates into the laser welding machine body after turning over, so as to further ensure the stability and continuity of the aluminum alloy medium plate welding during welding. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0027] Figure 2 It is a side view of the overall structure of the present application;

[0028] Figure 3 It is a top view of the overall structure of the present application;

[0029] Figure 4 Figure 1 is a schematic diagram of a first support platform structure of the present application;

[0030] Figure 5 Figure 2 is a schematic diagram of a side view of a support base structure of the present application;

[0031] Figure 6 Figure 3 is a schematic diagram of a support plate structure of the present application;

[0032] Figure 7 Figure 4 is a schematic diagram of a synchronous rotating member structure of the present application;

[0033] Figure 8 Figure 5 is a schematic diagram of a linkage rod structure of the present application;

[0034] Figure 9 Figure 6 is a schematic diagram of an end contact detection member structure of the present application;

[0035] Figure 10 Figure 7 is a schematic diagram of a synchronous rotating member structure of the present application;

[0036] Figure 11 Figure 8 is a schematic diagram of an upper support frame structure of the present application;

[0037] Figure 12 Figure 9 is a schematic diagram of a fixed base structure of the present application;

[0038] Figure 13 Figure 10 is a schematic diagram of a turnover plate structure of the present application;

[0039] Figure 14 Figure 11 is a schematic diagram of a connecting member structure of the present application;

[0040] Figure 15 Figure 12 is a schematic diagram of a Figure 14 Figure 13 is a schematic diagram of an enlarged structure of region A in Figure 12.

[0041] In the figure: 1-laser welding machine body; 2-first support table; 3-second support table; 31-moving mouth; 4-position adjusting mechanism; 41-support base; 42-lifting cylinder; 43-support plate; 44-rotation shaft; 45-synchronous rotating part; 451-rotation gear; 452-gear strip; 453-connection plate; 454-push cylinder; 46-aggregation guide; 5-connection distance adjusting mechanism; 51-fixed base; 511-advance screw; 512-servo motor; 52-moving base; 53-moving frame; 54-overturning plate; 55-overturning part; 551-overturning motor; 552-overturning shaft; 56-distance adjusting part; 561-upper support frame; 562-lower support frame; 563-connection cylinder; 564-connection part; 5641-center shaft; 5642-synchronous shaft; 5643-first connection support rod; 5644-second connection support rod; 565-positioning frame; 566-reciprocating cylinder; 567-reciprocating plate; 568-rotation sleeve; 5681-guide hole; 569-clamping belt; 57-synchronous part; 571-synchronous plate; 572-synchronous sleeve; 58-transmission part; 581-transmission rod; 582-driving motor; 6-reciprocating part; 61-swinging rod; 62-connection shaft; 63-linkage rod; 64-linkage shaft; 7-connection shell; 71-sliding block; 8-end contact detecting part; 81-positioning shaft; 82-L-shaped rod; 83-connection spring; 84-pressure sensor; 85-end roller; 86-side stop roller; 87-fixed plate; 9-pushing part; 91-pushing roller; 92-synchronous rotating part; 921-driving shaft; 922-rotation gear; 923-rotation gear chain; 924-guide wheel; 925-rotation motor. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application. Embodiment one

[0043] Please refer to Figures 1 to 3 A laser welding device for aluminum alloy medium plates comprises a laser welding machine body 1 for simultaneously welding a plurality of aluminum alloy medium plates, a first support table 2 and a second support table 3 are sequentially arranged at the entrance of the laser welding machine body 1, and the plurality of aluminum alloy medium plates are placed on the table surface between the first support table 2 and the second support table 3.

[0044] The side of the first support table 2 away from the second support table 3 is provided with a position adjusting mechanism 4, and the position adjusting mechanism 4 is used for synchronously adjusting the end and position of the plurality of aluminum alloy medium plates.

[0045] Please refer to Figures 4 to 10 , the position adjusting mechanism 4 comprises a support base 41, a lifting cylinder 42, a support plate 43, a rotating shaft 44, a synchronous rotating part 45 and a polymer guide 46, the support base 41 is located on the side of the first support table 2 away from the second support table 3, and the lifting cylinder 42 is fixedly installed on the support base 41, the output end of the lifting cylinder 42 is fixedly connected with the support plate 43, and the support plate 43 is slidingly connected on the support base 41, that is, the support base 41 is provided with a guide rod for guiding the support plate 43, so that the support plate 43 can stably move upward or downward relative to the support base 41;

[0046] The rotating shaft 44 is provided with a plurality of rotating shafts 44, which are equidistantly arranged on the support plate 43, and the rotating shaft 44 is rotatably connected with the support plate 43, the synchronous rotating part 45 is installed on the support plate 43, and the synchronous rotating part 45 is used for synchronously driving the plurality of rotating shafts 44, the polymer guide 46 is provided with a plurality of polymer guides 46, and the plurality of polymer guides 46 are respectively connected with the plurality of rotating shafts 44, and the plurality of polymer guides 46 are slidingly connected with the support plate 43.

[0047] Please refer to Figure 7 , the synchronous rotating part 45 comprises a rotating gear 451, a gear strip 452, a connecting plate 453 and a pushing cylinder 454, the rotating gear 451 is provided with a plurality of rotating gears 451, which are respectively fixedly sleeved outside the plurality of rotating shafts 44, the gear strip 452 is engagedly connected with the rotating gear 451, the connecting plate 453 is fixedly connected with one side of the plurality of gear strips 452, and the pushing cylinder 454 is fixedly installed on the support plate 43, and the output end of the pushing cylinder 454 is fixedly connected with the connecting plate 453;

[0048] The polymer guide 46 comprises a reciprocating part 6, a connecting shell 7, an end contact detection part 8 and a pushing part 9, the reciprocating part 6 is fixedly installed on the rotating shaft 44, the connecting shell 7 is provided with two connecting shells 7, which are respectively connected with two ends of the reciprocating part 6, two sliding blocks 71 are fixedly installed on the bottom of the connecting shell 7, and the connecting shell 7 is slidingly connected with the support plate 43 through the two sliding blocks 71, the end contact detection part 8 is installed on one end of the connecting shell 7, and the pushing part 9 is installed on the connecting shell 7.

[0049] Please refer to Figure 8 , the reciprocating part 6 comprises a swing rod 61, a connecting shaft 62, a linkage rod 63 and a linkage shaft 64, the swing rod 61 is fixedly installed on the rotating shaft 44, the connecting shaft 62 is provided with two connecting shafts 62, which are respectively fixedly installed on two ends of the swing rod 61, the linkage rod 63 is provided with two linkage rods 63, one end of each of the two linkage rods 63 is rotatably connected with the two connecting shafts 62, the linkage shaft 64 is fixedly installed on the other end of the linkage rod 63, and the linkage shaft 64 is rotatably connected with the corresponding connecting shell 7.

[0050] The end contact detection piece 8 comprises a positioning shaft 81, an L-shaped rod 82, a connecting spring 83, a pressure sensor 84, an end roller 85 and a side stop roller 86, the positioning shaft 81 is rotationally connected at the end of the connecting shell 7, the L-shaped rod 82 is fixedly sleeved outside the positioning shaft 81 at the center, one end of the connecting spring 83 is fixedly connected with the side of the L-shaped rod 82 away from the first support table 2, and the other end of the connecting spring 83 is fixedly connected with the pressure sensor 84, one side of the pressure sensor 84 is fixedly installed with a fixed plate 87, and the fixed plate 87 is fixedly installed at the top end of the connecting shell 7, the end roller 85 is rotationally connected on the L-shaped rod 82 and close to one end of the X-axis of the connecting shell 7;

[0051] The side stop roller 86 is rotationally connected at the other end of the L-shaped rod 82, in the embodiment, under the condition that the connecting spring 83 is not subjected to external force, the connecting spring 83 pushes the L-shaped rod 82 to rotate in the direction of the first support table 2, that is, the end roller 85 is towards the position of the first support table 2, under this condition, it can be ensured that the end roller 85 can first contact one end of the aluminum alloy medium plate and detect the position of the aluminum alloy medium plate;

[0052] The pushing piece 9 comprises a pushing roller 91 and a synchronous rotating piece 92, the pushing roller 91 is provided with a plurality of pushing rollers 91, and the plurality of pushing rollers 91 are all rotationally connected on the connecting shell 7, the synchronous rotating piece 92 is installed inside the connecting shell 7, and the synchronous rotating piece 92 is used for driving the plurality of pushing rollers 91 in the same direction;

[0053] In the application, the synchronous rotating piece 92 comprises a driving shaft 921, a rotating gear 922, a rotating gear chain 923, a guide wheel 924 and a rotating motor 925, the driving shaft 921 is provided with a plurality of driving shafts 921, one end of each of the plurality of driving shafts 921 is fixedly connected with the pushing roller 91, and the bottom of the driving shaft 921 penetrates through the top of the connecting shell 7, the driving shaft 921 is rotationally connected with the connecting shell 7, the rotating gear 922 is provided with a plurality of rotating gears 922, each of the plurality of rotating gears 922 is fixedly sleeved outside the plurality of driving shafts 921, the rotating gear chain 923 is used for transmitting the plurality of driving gears, the guide wheel 924 is provided with a plurality of guide wheels 924, each of the plurality of guide wheels 924 is rotationally connected inside the connecting shell 7, and the plurality of guide wheels 924 are used for guiding the rotating gear chain 923, the rotating motor 925 is installed inside the connecting shell 7, and the rotating motor 925 is used for driving one of the driving shafts 921;

[0054] Specific implementation process: when the plurality of aluminum alloy medium plates are placed in turn on the table surface between the first support table 2 and the second support table 3, the ends of the plurality of aluminum alloy medium plates extend to the outside of one end of the first support table 2, and at this time, the pushing rollers 91, the side blocking rollers 86 and the end rollers 85 on the plurality of connecting shells 7 are all higher than the table surface of the first support table 2, one end of the plurality of aluminum alloy medium plates is located between two connecting shells 7, and due to the elastic force of the connecting springs 83, the end rollers 85 are directed to the first support table 2 at the initial position, so the end rollers 85 first contact the ends of the aluminum alloy medium plates, and at the same time, the end rollers 85 are pushed to move, further making the L-shaped rods 82 rotate around the positioning shafts 81, when the L-shaped rods 82 rotate, the connecting springs 83 synchronously press the pressure sensors 84, and when the signal value detected by the pressure sensors 84 does not reach the set value, at this time, the two rotating motors 925 in the two connecting shells 7 on both sides of the aluminum alloy medium plate are reversely operated, further making the plurality of pushing rollers 91 on both sides of the aluminum alloy medium plate reversely rotate, so as to adjust the ends of the aluminum alloy medium plate, until the pressure value detected by the pressure sensor 84 reaches the set value, the two rotating motors 925 stop operating, at this time, the ends of the plurality of aluminum alloy medium plates and the spacing between the plurality of aluminum alloy medium plates are adjusted.

[0055] Please refer to Figures 11 to 15 , the first support table 2 and the second support table 3 are provided with a connecting distance adjusting mechanism 5, which is used for adjusting the connecting gap between the plurality of aluminum alloy medium plates and assisting the aluminum alloy medium plate into the laser welding machine body 1.

[0056] The connecting distance adjusting mechanism 5 comprises a fixed base 51, a moving base 52, a moving frame 53, a turnover plate 54, a turnover piece 55 and a distance adjusting piece 56, the fixed base 51 is located between the first support table 2 and the second support table 3, and the fixed base 51 is used for driving the moving base 52 to move towards the second support table 3, and the second support table 3 is provided with a moving opening 31;

[0057] The moving frame 53 is slidingly connected to the moving base 52, and the moving base 52 is provided with a moving part for driving the moving frame 53. The moving part comprises a moving lead screw and a moving motor. The moving lead screw is rotationally connected inside the moving base 52, and the moving motor is fixedly installed on the moving base 52. The moving motor is used to drive the moving lead screw. The moving frame 53 is threadedly connected to the outside of the moving lead screw. Further, the moving motor is operated to rotate the moving lead screw relative to the inside of the moving base 52. At the same time, the moving lead screw is rotated to synchronously provide driving force for the moving frame 53. Further, the moving frame 53 is moved along the moving base 52 until the moving frame 53 is aligned with the moving opening 31 on the second support table 3 on the same X-axis.

[0058] The turning part 55 is installed on the moving frame 53, and the turning part 55 is used to drive the turning plate 54. The distance adjusting part 56 is installed on one side of the turning plate 54. The turning part 55 comprises a turning motor 551 and a turning shaft 552. The turning shaft 552 is rotationally connected to the moving frame 53. The turning plate 54 is fixedly connected to the outside of the turning shaft 552. The turning motor 551 is fixedly installed on the moving frame 53, and the turning motor 551 is used to drive the turning shaft 552.

[0059] The distance adjusting part 56 comprises an upper support frame 561, a lower support frame 562, a connecting cylinder 563, and a connecting part 564. One side of the lower support frame 562 is fixedly connected to the turning plate 54. The connecting cylinder 563 is fixedly installed on the lower support frame 562. The output end of the connecting cylinder 563 is fixedly connected to the upper support frame 561. Multiple positioning frames 565 are equidistantly arranged on the side of the upper support frame 561 and the lower support frame 562 that are close to each other. The connecting part 564 is provided with two connecting parts 564, which are respectively connected to the upper support frame 561 and the lower support frame 562. The connecting part 564 is used to connect the multiple positioning frames 565. The upper support frame 561 is provided with a reciprocating cylinder 566. The output end of the reciprocating cylinder 566 is fixedly installed with a reciprocating plate 567. The upper support frame 561 is provided with a positioning opening corresponding to the reciprocating plate 567. The reciprocating plate 567 slidingly penetrates the positioning opening and is fixedly connected to one of the positioning frames 565.

[0060] As a further supplement, the connecting part 564 comprises a central shaft 5641, which is located on the positioning frame 565 at the center of the upper support frame 561 or the lower support frame. The two ends of the central shaft 5641 are fixedly connected to the corresponding positioning frame 565 and the upper support frame 561 or the lower support frame 562. One side of the remaining positioning frames 565 is fixedly connected with a synchronous shaft 5642. The synchronous shaft 5642 and the central shaft 5641 are sequentially rotationally connected with a first connecting branch 5643 and a second connecting branch 5644. Adjacent first connecting branches 5643 and second connecting branches 5644 are connected through a pin shaft.

[0061] Further, by reciprocating the cylinder 566, the corresponding positioning frame 565 is caused to move synchronously in the direction of the positioning frame 565 at the center axis 5641 under the connection of the first connecting strut 5643 and the second connecting strut 5644, and the positioning frame 565 at the center axis 5641 remains unchanged. In the present application, the number of positioning frames 565 and the welded aluminum alloy medium plates is odd, and under the connection of the synchronizer 57, the positioning frames 565 at the upper support frame 561 and the positioning frames 565 at the lower support frame 562 can move synchronously.

[0062] The synchronizer 57 is arranged between any two positioning frames 565 at the upper support frame 561 and the lower support frame 562, and the synchronizer 57 comprises a synchronization plate 571 and a synchronization sleeve 572. One end of the synchronization plate 571 is fixedly connected with one positioning frame 565 at the edge of the upper support frame 561, the synchronization plate 571 is L-shaped, and the other end of the synchronization plate 571 is slidably penetrated through the synchronization sleeve 572, and the synchronization sleeve 572 is fixedly connected with the positioning frame 565 at the edge of the lower support frame 562.

[0063] Both ends of the positioning frame 565 are rotatably connected with a rotating sleeve 568, and the two rotating sleeves 568 are drivingly connected with a clamping belt 569. The upper support frame 561 and the lower support frame 562 are each provided with a transmission member 58 for synchronously driving the plurality of rotating sleeves 568.

[0064] The position of each rotating sleeve 568 corresponding to the transmission member 58 is provided with a guide hole 5681, and the transmission member 58 comprises a transmission rod 581 and a driving motor 582. The transmission rod 581 is provided with two ends, one end of the two transmission rods 581 is rotatably connected with the upper support frame 561, and the two transmission rods 581 are respectively slidably penetrated through the plurality of guide holes 5681. The driving motor 582 is used for driving one of the transmission rods 581, and the driving motor 582 is fixedly installed on the upper support frame 561.

[0065] Specific implementation process: when the plurality of aluminum alloy medium plates are placed on the table surface between the first support table 2 and the second support table 3, the outer surface of the clamping belt 569 at the lower support frame 562 is at the same height as the table surface of the first support table 2, that is, the plurality of aluminum alloy medium plates are synchronously placed on the plurality of clamping belts 569 at the lower support frame 562, and when the distance between the plurality of aluminum alloy medium plates is adjusted, the upper support frame 561 is caused to move downward along the lower support frame 562 by the connection of the cylinder 563, until the plurality of clamping belts 569 at the upper support frame 561 are in contact with the upper surfaces of the aluminum alloy medium plates, and at the same time, the clamping belts 569 above and below the aluminum alloy are simultaneously caused to clamp and fix the corresponding aluminum alloy medium plates.

[0066] At this time, the end rollers 85, the side stop rollers 86 and the pushing rollers 91 at the ends of the plurality of aluminum alloy medium plates are lowered under the operation of the lifting cylinders 42 until they are separated from the positions at the ends of the aluminum alloy medium plates, and then, under the operation of the reciprocating cylinders 566, the connecting pieces 564 at the upper support frame 561 and the lower support frame 562 drive the corresponding plurality of positioning frames 565 to move relatively at different distances until the gap between the plurality of aluminum alloy medium plates reaches a set value, and then the reciprocating cylinders 566 stop operating;

[0067] Then, the fixed plurality of aluminum alloy medium plates are further turned 90° relative to the first support table 2 and the second support table 3 under the operation of the turnover piece 55, and then the moving frame 53 moves to the moving opening 31, the moving base 52 moves along the fixed base 51, and the plurality of aluminum alloy medium plates are further pushed into the laser welding machine body 1, and at this time, the laser welding machine body 1 realizes stable welding of the plurality of aluminum alloy medium plates, and then the two drive motors 582 are synchronously and reversely operated, the transmission rod 581 drives the clamping belt 569 to rotate, and the aluminum alloy medium plates can continuously and stably enter the laser welding machine body 1, realizing high-precision welding of the aluminum alloy plates and preventing the gap between the connected aluminum plates from being too large or too small. Embodiment Two

[0068] Please refer to Figures 11 to 13 Embodiment Two is a further supplement to Embodiment One, specifically: the fixed base 51 is rotatably connected with a forward screw 511, and the fixed base 51 is provided with a servo motor 512 for driving the forward screw 511, the moving base 52 is threadedly connected to the outside of the forward screw 511, and the moving base 52 is slidably connected to the fixed base 51.

[0069] When the moving base 52 moves relative to the fixed base 51, i.e. when the moving base 52 moves towards the entrance of the laser welding machine body 1, the servo motor 512 is operated to further rotate the forward screw 511 relative to the fixed base 51, and at the same time the forward screw 511 rotates, the moving base 52 is driven, and under the limiting action of the fixed base 51, the moving base 52 is further moved along the entrance of the laser welding machine body 1.

[0070] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0071] While the embodiments of the application have been shown and described herein, it will be understood by those of ordinary skill in the art that various changes, modifications, alternatives, and variations can be made to the embodiments without departing from the spirit and scope of the application, which is defined by the claims and their equivalents.

Claims

1. An apparatus for laser welding of aluminium alloy plates, comprising a laser welding machine body (1) for simultaneous welding of a plurality of aluminium alloy plates, characterised in that: The first support table (2) is provided with a position adjusting mechanism (4) on the side away from the second support table (3), and the position adjusting mechanism (4) is used for synchronously adjusting the end and position of the plurality of aluminum alloy medium plates. The first support table (2) and the second support table (3) are provided with a connection distance adjusting mechanism (5) therebetween, and the connection distance adjusting mechanism (5) is used for adjusting the connection gap between the plurality of aluminum alloy medium plates while assisting the aluminum alloy medium plates to enter the laser welding machine body (1) inside. The position adjusting mechanism (4) comprises a support base (41), a lifting cylinder (42), a support plate (43), a rotating shaft (44), a synchronous rotating piece (45) and a polymerization guide piece (46), the support base (41) is located on the side of the first support table (2) away from the second support table (3), and the lifting cylinder (42) is fixedly installed on the support base (41), the output end of the lifting cylinder (42) is fixedly connected with the support plate (43), and the support plate (43) is slidably connected with the support base (41); The rotating shaft (44) is provided with a plurality of rotating shafts (44) which are equidistantly arranged on the support plate (43), the rotating shaft (44) is rotatably connected with the support plate (43), the synchronous rotating piece (45) is installed on the support plate (43), and the synchronous rotating piece (45) is used for synchronously driving the plurality of rotating shafts (44), the polymerization guide piece (46) is provided with a plurality of polymerization guide pieces (46) which are respectively connected with the plurality of rotating shafts (44), and the plurality of polymerization guide pieces (46) are slidably connected with the support plate (43); The connection distance adjusting mechanism (5) comprises a fixed base (51), a moving base (52), a moving frame (53), a turnover plate (54), a turnover piece (55) and a distance adjusting piece (56), the fixed base (51) is located between the first support table (2) and the second support table (3), and the fixed base (51) is used for driving the moving base (52) to move towards the second support table (3), and the second support table (3) is provided with a moving opening (31); The moving frame (53) is slidably connected with the moving base (52), and the moving base (52) is provided with a moving piece for driving the moving frame (53); The turnover piece (55) is installed on the moving frame (53), and the turnover piece (55) is used for driving the turnover plate (54), and the distance adjusting piece (56) is installed on one side of the turnover plate (54). ​ The distance adjusting piece (56) comprises an upper support frame (561), a lower support frame (562), a connecting air cylinder (563) and a connecting piece (564), one side of the lower support frame (562) is fixedly connected with the turnover plate (54), the connecting air cylinder (563) is fixedly installed on the lower support frame (562), the output end of the connecting air cylinder (563) is fixedly connected with the upper support frame (561), a plurality of positioning frames (565) are equidistantly arranged on the side, where the upper support frame (561) and the lower support frame (562) are close to each other, of the upper support frame (561) and the lower support frame (562), the connecting piece (564) is provided with two, the two connecting pieces (564) are connected with the upper support frame (561) and the lower support frame (562) respectively, and the connecting piece (564) is used for connecting the plurality of positioning frames (565), the upper support frame (561) is provided with a reciprocating air cylinder (566), the output end of the reciprocating air cylinder (566) is fixedly installed with a reciprocating plate (567), the upper support frame (561) is provided with a positioning opening at a position corresponding to the reciprocating plate (567), and the reciprocating plate (567) slidably penetrates through the positioning opening and is fixedly connected with one of the positioning frames (565); Synchronous pieces (57) are arranged between two of the positioning frames (565) at the upper support frame (561) and the lower support frame (562); Both ends of the positioning frame (565) are rotatably connected with rotary sleeves (568), and the two rotary sleeves (568) are drivingly connected with a clamping belt (569), and the upper support frame (561) and the lower support frame (562) are provided with transmission pieces (58) for synchronously driving a plurality of rotary sleeves (568).

2. The apparatus according to claim 1, wherein: The synchronous rotating piece (45) comprises rotating gears (451), gear strips (452), a connecting plate (453) and a pushing air cylinder (454), the rotating gears (451) are provided with a plurality of rotating gears (451), the rotating gears (451) are fixedly sleeved outside the rotating shafts (44), the gear strips (452) are in meshing connection with the rotating gears (451), the connecting plate (453) is fixedly connected with one side of the gear strips (452), and the pushing air cylinder (454) is fixedly installed on the support plate (43), and the output end of the pushing air cylinder (454) is fixedly connected with the connecting plate (453).

3. The apparatus according to claim 1, wherein: The polymeric guide (46) comprises a reciprocating piece (6), a connecting shell (7), an end contact detection piece (8) and a pushing piece (9), the reciprocating piece (6) is fixedly installed on the rotating shaft (44), the connecting shell (7) is provided with two, and the two connecting shells (7) are connected with both ends of the reciprocating piece (6), the connecting shell (7) is fixedly installed with two sliding blocks (71) at the bottom, and the connecting shell (7) is slidingly connected with the support plate (43) through the two sliding blocks (71), the end contact detection piece (8) is installed at one end of the connecting shell (7), and the pushing piece (9) is installed on the connecting shell (7).

4. The apparatus according to claim 3, wherein: The reciprocating member (6) comprises a swing rod (61), a connecting shaft (62), a linkage rod (63) and a linkage shaft (64), the swing rod (61) is fixedly installed on the rotating shaft (44), the connecting shaft (62) is provided with two, the two connecting shafts (62) are fixedly installed at two ends of the swing rod (61) respectively, the linkage rod (63) is provided with two, one end of the two linkage rods (63) is rotatably connected with the two connecting shafts (62) respectively, the linkage shaft (64) is fixedly installed at the other end of the linkage rod (63), and the linkage shaft (64) is rotatably connected with the corresponding connecting shell (7).

5. The apparatus according to claim 3, wherein: The end contact detection member (8) comprises a positioning shaft (81), an L-shaped rod (82), a connecting spring (83), a pressure sensor (84), an end roller (85) and a side stop roller (86), the positioning shaft (81) is rotatably connected at the end of the connecting shell (7), the L-shaped rod (82) is fixedly sleeved outside the positioning shaft (81) at the center, one end of the connecting spring (83) is fixedly connected with the side of the L-shaped rod (82) away from the first support table (2), and the other end of the connecting spring (83) is fixedly connected with the pressure sensor (84), one side of the pressure sensor (84) is fixedly installed with a fixed plate (87), and the fixed plate (87) is fixedly installed at the top end of the connecting shell (7), the end roller (85) is rotatably connected to one end of the L-shaped rod (82) close to the X-axis of the connecting shell (7); The side stop roller (86) is rotatably connected to the other end of the L-shaped rod (82).

6. The apparatus according to claim 3, wherein: The pushing member (9) comprises a pushing roller (91) and a synchronous rotating member (92), the pushing roller (91) is provided with a plurality of, the plurality of pushing rollers (91) are all rotatably connected to the connecting shell (7), and the synchronous rotating member (92) is installed in the connecting shell (7) and is used for driving the plurality of pushing rollers (91) in the same direction.

7. The apparatus of claim 1, wherein: A plurality of the rotating sleeves (568) are provided with guide holes (5681) corresponding to the positions of the transmission members (58), the transmission member (58) comprises a transmission rod (581) and a driving motor (582), the transmission rod (581) is provided with two, one end of the two transmission rods (581) is rotatably connected with the upper support frame (561), the two transmission rods (581) respectively slide through the plurality of guide holes (5681), the driving motor (582) is used for driving one of the transmission rods (581), and the driving motor (582) is fixedly installed on the upper support frame (561).

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