A precise laser welding device for an automobile sheet metal part

Abstract

The present application belongs to the technical field of laser welding, in particular to a precise laser welding device for automobile sheet metal parts, comprising a connecting seat, a conveying component, an adjusting component, a welding component and a pressing plate; the present application adjusts the left and right positions of two sheet metal parts through two first adjusting mechanisms, adjusts the front and back positions of the two sheet metal parts through two second adjusting mechanisms, makes two pressing plates respectively extrude on the two sheet metal parts, fixes the two sheet metal parts, and the welding component welds the two sheet metal parts; the adjusting component automatically adjusts the left and right positions and the front and back positions of the two sheet metal parts, fixes the two sheet metal parts through the pressing plate, and performs flow operation; the two second adjusting mechanisms make the welding positions of the two sheet metal parts abut together, reduce the gap between the two sheet metal parts, and improve the welding quality; the pressing plate tightly fixes the sheet metal parts, makes the two sheet metal parts in a horizontal state, and improves the flatness of the sheet metal parts after welding.

Description

Technical Field

[0001] This invention belongs to the field of laser welding technology, specifically a precision laser welding device for automotive sheet metal parts. Background Technology

[0002] Sheet metal processing is a comprehensive cold working process for thin metal sheets (usually less than 6 mm thick). Its significant characteristic is that the thickness of the same part is consistent. Products processed by sheet metal processing are called sheet metal parts. Automotive sheet metal parts are automotive components produced by sheet metal processing and used for assembly in automobile assembly. In automobile manufacturing, welding of sheet metal parts is an important process. Laser welding is a highly efficient and precise welding method that uses a high-energy-density laser beam as a heat source. The laser radiation heats the surface of the workpiece, and the surface heat diffuses into the interior through heat conduction. By controlling parameters such as the width, energy, peak power, and repetition frequency of the laser pulse, the workpiece is melted to form a specific molten pool. Due to its unique advantages, it has been successfully applied to the precision welding of micro and small parts.

[0003] Existing welding equipment requires manual joining of the weld joints of two sheet metal parts to be welded before welding, which reduces welding efficiency and makes it impossible to precisely control the gap between the two sheet metal parts, increasing the probability of producing defective products. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention proposes a precision laser welding device for automotive sheet metal parts. This invention primarily addresses the problems of reduced welding efficiency caused by the need for manual joining of two sheet metal parts in existing welding devices, and the inability to precisely control the gap between the two parts, which increases the probability of defective products.

[0005] The technical solution adopted by the present invention to solve its technical problem is: the present invention provides a precision laser welding device for automotive sheet metal parts, including a connecting seat, a conveying component, an adjusting component, a welding component and a pressure plate;

[0006] The connecting seat is connected to the conveying component; the conveying component is provided with two adjusting components; the conveying component is used to drive the adjusting components and the sheet metal parts to move;

[0007] The adjustment components include a mounting base, a first adjustment mechanism, and a second adjustment mechanism; the first adjustment mechanism is symmetrically arranged on the mounting base; the first adjustment mechanism is used to adjust the left and right position of the sheet metal part; the second adjustment mechanism is symmetrically arranged on the mounting base; the second adjustment mechanism is used to adjust the front and rear position of the sheet metal part.

[0008] A movable component is connected to the connecting seat; the welded part and the pressure plate are connected to the movable component; the movable component is used to drive the welded part and the pressure plate to rise or fall; the movable component is used to drive the welded part to move laterally; the welded part is used to weld sheet metal parts;

[0009] A conveying component is connected to the connecting base; the conveying component is used to drive the adjusting component to move.

[0010] Preferably, the conveying component includes a rotating component, a connecting plate, a first guide component, a second guide component, and a power mechanism;

[0011] The rotating components are symmetrically arranged at both ends of the connecting seat; the rotating components are rotatably connected to the connecting seat.

[0012] Multiple connecting plates are arranged end-to-end to form a chain structure; the beginning and end of the chain structure are hinged; two adjacent connecting plates are hinged together; the chain structure is sleeved on the outside of the two rotating parts;

[0013] The first guide member is evenly spaced on the connecting seat; the second guide member is symmetrically arranged at both ends of the connecting seat; the second guide member is located directly above the first guide member; both the first guide member and the second guide member are rotatably connected to the connecting seat; the distance between the axes of two adjacent first guide members is less than half the length of the connecting plate.

[0014] The connecting plate is symmetrically provided with plug-in structures; the mounting base is symmetrically provided with a slot number 1.

[0015] The power mechanism is connected to the connecting seat; the power mechanism is used to drive the connecting plate to move.

[0016] Preferably, a first drive seat is symmetrically provided on the connecting seat; a first ramp structure is symmetrically provided at both ends of the first drive seat; a first planar structure is provided between the two first ramp structures;

[0017] The first adjustment mechanism is symmetrically arranged at both ends of the mounting base; the first adjustment mechanism includes a first sliding component, a first driving component, a first roller and a first push plate;

[0018] The first sliding member is symmetrically arranged on both sides of one end of the mounting base; the first sliding member is slidably connected to the mounting base; the first driving member is arranged on the outer side of the mounting base; the two ends of the first driving member are respectively fixedly connected to the two first sliding members; the first roller is rotatably connected to the first driving member.

[0019] A first push plate is provided on one side of each of the two first sliding members that are close to each other; a first sliding groove is provided on the first push plate; the first push plate and the mounting base are connected by a first swing member and a second swing member; the first swing member and the second swing member are hinged.

[0020] One end of the first swing member is hinged to the first sliding member; the other end of the first swing member is hinged to the first push plate; one end of the second swing member is hinged to the mounting base; the other end of the second swing member is rotatably connected to the first hinge shaft; the first hinge shaft is slidably connected in the first sliding groove;

[0021] The first driving component is provided with a first mounting groove evenly spaced; the first mounting groove is provided with a first elastic element; the first elastic element abuts against the mounting base.

[0022] Preferably, the connecting seat is symmetrically provided with a second drive seat; the two ends of the second drive seat are respectively provided with a second ramp structure and a third ramp structure; a second planar structure is provided between the second ramp structure and the third ramp structure; a third mounting groove is provided on the third ramp structure; a third magnet is fixedly connected in the third mounting groove.

[0023] The second adjustment mechanism is symmetrically arranged at both ends of the mounting base; the second adjustment mechanism includes a second pusher and a second roller; the second pusher is slidably connected to the mounting base; one end of the second pusher is rotatably connected to the second roller; the other end of the second pusher is provided with a second push part.

[0024] Preferably, the conveying component includes a first sliding seat, a third rack, a third motor, a third gear, a second sliding seat, a second threaded cylinder, a fourth motor, a second limiting component, and a second elastic component;

[0025] The first sliding seat is horizontally slidably connected to the connecting seat; the third rack is fixedly connected to the connecting seat; the third motor is fixedly connected to the first sliding seat; the third gear is fixedly connected to the shaft of the third motor; the third gear meshes with the third rack.

[0026] The first sliding seat is vertically slidably connected to the second sliding seat; the second sliding seat is provided with a second shaft-like structure; the second shaft-like structure is threadedly connected to the second threaded cylinder; the second threaded cylinder is rotatably connected to the first sliding seat; the first sliding seat is fixedly connected to the fourth motor; the fourth motor is used to drive the second threaded cylinder to rotate.

[0027] The second sliding seat has a second connecting structure symmetrically arranged at both ends; the second connecting structure has a second connecting groove symmetrically arranged on it; the second limiting member is slidably connected in the second connecting groove; one end of the second limiting member has a second spherical structure; the other end of the second limiting member has a second elastic member; one end of the second elastic member abuts against the second limiting member; the other end of the second elastic member abuts against the bottom surface of the second connecting groove; a fourth magnet is fixedly connected to the connecting seat.

[0028] The mounting base is symmetrically provided with a second insertion slot; the two opposite side walls of the second insertion slot are provided with a second groove.

[0029] Preferably, the moving component includes a No. 5 sliding seat, a No. 5 threaded cylinder, a No. 5 motor, a No. 6 sliding seat, a No. 6 threaded shaft, and a No. 6 motor;

[0030] The connecting seat is vertically slidably connected to the No. 5 sliding seat; the No. 5 sliding seat is provided with a No. 5 shaft-shaped structure; the No. 5 threaded cylinder is threadedly connected to the No. 5 shaft-shaped structure; the No. 5 threaded cylinder is rotatably connected to the connecting seat; the No. 5 motor is fixedly connected to the connecting seat; the No. 5 motor is used to drive the No. 5 threaded cylinder to rotate.

[0031] The lower end of the fifth sliding seat is symmetrically provided with a fifth connecting structure; the lower end of the fifth connecting structure is connected to the pressure plate; the sixth sliding seat is horizontally slidably connected to the fifth sliding seat; the lower end of the sixth sliding seat is fixedly connected to the welded part;

[0032] The sixth threaded shaft is rotatably connected to the fifth sliding seat; the sixth sliding seat is threadedly connected to the sixth threaded shaft; the sixth motor is fixedly connected to the fifth sliding seat; the sixth motor is used to drive the sixth threaded shaft to rotate.

[0033] Preferably, both the first drive seat and the second drive seat are slidably connected to the connecting seat; a first threaded shaft and a second threaded shaft are rotatably connected to the connecting seat; the first threaded shaft is threadedly connected to the first drive seat; the second threaded shaft is threadedly connected to the second drive seat; the pressure plate is slidably connected to the fifth connecting structure; an eighth threaded shaft is rotatably connected to the fifth connecting structure; the pressure plate is threadedly connected to the eighth threaded shaft.

[0034] Preferably, the power mechanism includes a second rack, a second connecting shaft, a second gear, a first gear, and a first motor;

[0035] The second rack is fixedly connected to the connecting plate; the second connecting shaft is spaced apart at one end of the connecting seat; the second connecting shaft is rotatably connected to the connecting seat; the second gear is fixedly connected to the second connecting shaft; the first motor is fixedly connected to the connecting seat; the first gear is fixedly connected to the shaft of the first motor; the second gear meshes with the first gear.

[0036] Preferably, the conveying component drives the sheet metal part to move from left to right; the second connecting shaft is arranged at a distance from the right end of the connecting seat.

[0037] Preferably, the right end of the connecting seat is also provided with a fan; the fixing cylinder of the fan is fixedly connected to the connecting seat.

[0038] The beneficial effects of this invention are as follows:

[0039] 1. In this invention, when the conveying component brings the sheet metal part to the adjustment station and pauses operation, the transport component moves the adjustment component on the release station, causing the adjustment component to move to the adjustment station and connect the adjustment component with the conveying component. The conveying component then moves the adjustment component and the sheet metal part towards the welding station. Two first-order adjustment mechanisms adjust the left and right positions of the two sheet metal parts so that their left and right symmetrical planes are on the same plane. Two second-order adjustment mechanisms adjust the front and back positions of the two sheet metal parts so that the weld joints of the two sheet metal parts are pressed together. When the conveying component moves the adjustment component and the sheet metal part to the welding station and pauses operation, the moving component moves the welding part and the pressure plate downwards. The two pressure plates press against the two sheet metal parts respectively, fixing them in place. Then, a moving component drives the welding component to move laterally, welding the two sheet metal parts together. An adjusting component automatically adjusts the left-right and front-back positions of the two sheet metal parts, fixing them in place by the pressure plates. This streamlined process increases welding speed and efficiency. Two secondary adjusting mechanisms bring the weld joints of the two sheet metal parts together, reducing gaps and improving weld quality. The pressure plates press and fix the sheet metal parts, ensuring they are horizontal and improving the flatness and overall weld quality.

[0040] 2. In this invention, when the connecting plate drives the adjusting component and the sheet metal part to move towards the welding station, the first roller abuts against the first ramp structure on the left side of the first drive seat, causing the first drive component to move towards the sheet metal part. This causes the two first push plates at one end of the mounting seat to move closer to each other, adjusting the left and right position of the sheet metal part. When the first roller rolls onto the first plane structure, the side walls of the two first push plates at one end of the mounting seat abut against the two side walls of a sheet metal part, completing the adjustment of the left and right position of one sheet metal part. Similarly, the side walls of the two first push plates at the other end of the mounting seat abut against the two side walls of another sheet metal part, completing the adjustment of the left and right position of the other sheet metal part, thus completing the adjustment of the left and right position of both sheet metal parts.

[0041] 3. In this invention, when the connecting plate moves the adjusting component and the sheet metal part toward the welding station, the second roller at one end of the mounting base rolls along the second inclined structure, causing the second roller to move toward the sheet metal part. This moves the second pushing component at one end of the mounting base toward the sheet metal part, causing the second pushing component to abut against the sheet metal part and move the sheet metal part toward the center of the mounting base. When the second roller abuts against the second planar structure, the sheet metal part stops moving. Similarly, the second pushing component at the other end of the mounting base abuts against the sheet metal part at that end and moves the sheet metal part at that end toward the center of the mounting base. When the two sheet metal parts stop moving, the weld joints of the two sheet metal parts abut together, and the weld joints are located on the plane formed by the lateral movement of the weld head of the welded part, thus completing the adjustment of the front and rear positions of the sheet metal parts.

[0042] 4. In this invention, the position of the first planar structure is changed, the position of the first sliding member when the first roller abuts against the first planar structure is changed, and the distance between the two first push plates at one end of the mounting base is changed to adjust the left and right positions of sheet metal parts of different lengths; the position of the second planar structure is changed, the position of the second push member when the second roller abuts against the second planar structure is changed to adjust the front and rear positions of sheet metal parts of different widths, so that the welding joint of the two sheet metal parts is located on the plane formed by the lateral movement of the welding head of the welding part; the distance between the bottom surface of the pressure plate and the lower end of the welding head structure of the welding part is changed, and the distance between the lower end of the welding head structure and the sheet metal part is adjusted to meet different welding requirements and improve the applicability of the welding parts. Attached Figure Description

[0043] The invention will now be further described with reference to the accompanying drawings.

[0044] Figure 1 This is a schematic diagram of the overall structure of the welding device in this invention;

[0045] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0046] Figure 3 This is a schematic diagram of the structure of the No. 1 drive seat in this invention;

[0047] Figure 4 yes Figure 3 A magnified view of a section at point B in the middle;

[0048] Figure 5 yes Figure 3 A magnified view of a section at point C;

[0049] Figure 6 yes Figure 3 A magnified view of a section at point D;

[0050] Figure 7 This is a schematic diagram of the structure of the welded component in this invention;

[0051] Figure 8 yes Figure 7 A magnified view of a section at point E in the middle;

[0052] Figure 9 yes Figure 7 A magnified view of a section at point F in the middle;

[0053] Figure 10 yes Figure 7 A magnified view of a section at point G in the middle;

[0054] Figure 11 This is a schematic diagram of the rotating component in this invention;

[0055] Figure 12 yes Figure 11 A magnified view of a section at point H in the middle;

[0056] Figure 13 yes Figure 11 A magnified view of a section at point I;

[0057] Figure 14 This is a schematic diagram of the structure of the moving component in this invention;

[0058] Figure 15 yes Figure 14 A magnified view of a section at point J;

[0059] Figure 16 This is a schematic diagram of the adjustment component in this invention;

[0060] Figure 17 This is a schematic diagram of the structure of the first sliding member in this invention;

[0061] Figure 18 This is a schematic diagram of the structure of the fifth sliding seat in this invention;

[0062] In the diagram: Connecting seat 1, Drive seat 11, Inclined structure 111, Planar structure 112, Drive seat 12, Inclined structure 121, Planar structure 122, Inclined structure 123, Magnet 124, Magnet 13, Conveying component 2, Rotating component 21, Connecting plate 22, Insertion structure 221, Guide component 1 23, Guide component 2 24, Power mechanism 25, Rack 2 251, Connecting shaft 2 252, Gear 2 253, Gear 1 254, Motor 1 255, Adjusting component 3, Mounting seat 31, Slot 1 311, Insertion slot 2 312, Adjusting mechanism 32, Sliding component 321, Drive component 322, Mounting slot 3221, Roller 323, Push plate 324, Sliding groove 3241, Oscillating component 1 Component 325, No. 2 swing component 326, No. 1 hinge shaft 327, No. 1 elastic component 328, No. 2 adjustment mechanism 33, No. 2 push component 331, No. 2 push part 3311, No. 2 roller 332, welded component 4, pressure plate 5, moving component 6, No. 5 sliding seat 61, No. 5 shaft structure 611, No. 5 connecting structure 612, No. 5 threaded cylinder 62, No. 5 motor 63, No. 6 sliding seat 64, No. 6 threaded shaft 65, No. 6 motor 66, handling component 7, No. 1 sliding seat 71, No. 3 rack 72, No. 3 motor 73, No. 3 gear 74, No. 2 sliding seat 75, No. 2 shaft structure 751, No. 2 connecting structure 752, No. 2 threaded cylinder 76, No. 4 motor 77, No. 2 limiting component 78, No. 2 spherical structure 781, No. 2 elastic component 79, No. 1 threaded shaft 81, No. 2 threaded shaft 82, No. 8 threaded shaft 83. Detailed Implementation

[0063] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0064] like Figures 1-18 As shown, a precision laser welding device for automotive sheet metal parts includes a connecting seat 1, a conveying component 2, an adjusting component 3, a welding component 4, and a pressure plate 5.

[0065] The connecting seat 1 is connected to the conveying component 2; the conveying component 2 is provided with two adjusting components 3; the conveying component 2 is used to drive the adjusting components 3 and the sheet metal parts to move.

[0066] The adjustment component 3 includes a mounting base 31, a first adjustment mechanism 32, and a second adjustment mechanism 33; the first adjustment mechanism 32 is symmetrically arranged on the mounting base 31; the first adjustment mechanism 32 is used to adjust the left and right position of the sheet metal part; the second adjustment mechanism 33 is symmetrically arranged on the mounting base 31; the second adjustment mechanism 33 is used to adjust the front and rear position of the sheet metal part.

[0067] A movable component 6 is connected to the connecting base 1; a welded component 4 and a pressure plate 5 are connected to the movable component 6; the movable component 6 is used to drive the welded component 4 and the pressure plate 5 to rise or fall; the movable component 6 is used to drive the welded component 4 to move laterally; the welded component 4 is used to weld sheet metal parts.

[0068] A conveying component 7 is connected to the connecting base 1; the conveying component 7 is used to drive the adjusting component 3 to move.

[0069] During operation, the operator uses the controller to make the conveyor component 2 work intermittently. When the conveyor component 2 is not working, the operator is at the placement station (as shown in the attached document). Figure 1As shown in the diagram, the left side of the connecting seat 1 is the placement station, the right side is the retrieval station, the moving component 6 is the welding station, the left side of the welding station is the adjustment station, and the right side of the welding station is the release station (not described further below). Two sheet metal parts are placed on the conveying component 2, bringing the welded joints of the two sheet metal parts close together. When the conveying component 2 operates, it moves the sheet metal parts. When the conveying component 2 brings the sheet metal parts to the adjustment station and pauses operation, the controller activates the transport component 7. The transport component 7 moves the adjustment component 3 on the release station, causing the adjustment component 3 to move to the adjustment station. The adjustment component 3 is then placed... On the conveying component 2 (at this time, both the first adjustment mechanism 32 and the second adjustment mechanism 33 are in a non-working state, and neither the first adjustment mechanism 32 nor the second adjustment mechanism 33 comes into contact with the sheet metal part), the adjusting component 3 and the conveying component 2 are connected together. Then the conveying component 2 starts working again, and the conveying component 2 drives the adjusting component 3 and the sheet metal part to move towards the welding station. During the movement of the adjusting component 3 by the conveying component 2, the two first adjustment mechanisms 32 work first, and the two first adjustment mechanisms 32 adjust the left and right positions of the two sheet metal parts so that the symmetrical planes of the two sheet metal parts in the left and right directions are on the same plane. Subsequently... Two adjustment mechanisms 33 operate, adjusting the front-to-back position of the two sheet metal parts so that the weld joints of the two sheet metal parts are pressed together, and the weld joints are located on the plane formed by the lateral movement of the welding head structure of the welding component 4. When the conveying component 2 moves the adjustment component 3 and the sheet metal parts to the welding station and pauses, the moving component 6 moves the welding component 4 and the pressure plate 5 downward, so that the two pressure plates 5 press against the two sheet metal parts respectively, fixing the two sheet metal parts. Then, the moving component 6 moves the welding component 4 laterally, and the welding component 4 welds the two sheet metal parts together. Together; after welding is completed, the moving part 6 moves the welded part 4 and the pressure plate 5 upward to the highest position, and the conveying part 2 moves the adjusting part 3 and the sheet metal part to the release station. During the movement, the first adjusting mechanism 32 returns to the non-working state and disengages from the sheet metal part. The second adjusting mechanism 33 also returns to the non-working state and disengages from the sheet metal part. The handling part 7 moves the adjusting part 3 to the station to be adjusted and places the adjusting part 3 on the conveying part 2. When the conveying part 2 moves the sheet metal part to the picking station, the staff takes the sheet metal part away.

[0070] Workers simply place the sheet metal parts on the conveyor component 2, and the adjusting component 3 automatically adjusts the left-right and front-back positions of the two sheet metal parts. The pressure plate 5 then fixes the two sheet metal parts in place, enabling assembly line operation and increasing the welding speed and efficiency. The two secondary adjusting mechanisms 33 bring the weld joints of the two sheet metal parts together, reducing the gap between them and improving the welding quality. The pressure plate 5 presses and fixes the sheet metal parts, keeping them horizontal and improving the flatness of the welded parts, thus enhancing the welding quality. The welding component 4 is a laser welding mechanism, which will not be described in detail here.

[0071] The conveying component 2 includes a rotating component 21, a connecting plate 22, a first guide component 23, a second guide component 24, and a power mechanism 25;

[0072] Rotating components 21 are symmetrically arranged at both ends of the connecting base 1; the rotating components 21 are rotatably connected to the connecting base 1.

[0073] Multiple connecting plates 22 are adjacent to each other to form a chain structure; the beginning and end of the chain structure are hinged; two adjacent connecting plates 22 are hinged; the chain structure is sleeved on the outside of two rotating parts 21;

[0074] A first guide member 23 is evenly spaced on the connecting seat 1; a second guide member 24 is symmetrically arranged at both ends of the connecting seat 1; the second guide member 24 is located directly above the first guide member 23; both the first guide member 23 and the second guide member 24 are rotatably connected to the connecting seat 1; the distance between the axes of two adjacent first guide members 23 is less than half the length of the connecting plate 22.

[0075] The connecting plate 22 is symmetrically provided with plug-in structures 221; the mounting base 31 is symmetrically provided with slot 311;

[0076] A power mechanism 25 is connected to the connecting seat 1; the power mechanism 25 is used to drive the connecting plate 22 to move.

[0077] The connecting plate 22 on the upper part of the chain structure abuts between the first guide member 23 and the second guide member 24, and the distance between the axes of the two first guide members 23 is less than half the length of the connecting plate 22 (the distance in the left-right direction of the connecting plate 22 is the length), so that the connecting plate 22 is located on at least two first guide members 23, and this part of the connecting plate 22 is in a horizontal state; the controller causes the power mechanism 25 to work intermittently, and when the power mechanism 25 works, it drives the connecting plate 22 to move, and the distance that the connecting plate 22 moves each time the power mechanism 25 works is equal to the length of one connecting plate 22; the connecting plate 22 pauses moving. During operation, the worker places two sheet metal parts on the corresponding connecting plate 22 at the placement station, so that the bottom surfaces of the two sheet metal parts abut against the connecting plate 22, and the welded joints of the two sheet metal parts are brought closer to each other; when the connecting plate 22 brings the sheet metal parts to the adjustment station and pauses the movement, the transport component 7 drives the adjustment component 3 at the release station to move, so that the adjustment component 3 moves to the adjustment station, so that the mounting base 31 abuts against the corresponding connecting plate 22, and the first slot 311 is fitted onto the plug-in structure 221, so that the mounting base 31 and the connecting plate 22 are connected together, and the mounting base 31 and the connecting plate 22 move synchronously.

[0078] A drive seat 11 is symmetrically provided on the connecting seat 1; a ramp structure 111 is symmetrically provided at both ends of the drive seat 11; a planar structure 112 is provided between the two ramp structures 111.

[0079] The mounting base 31 has a first adjustment mechanism 32 symmetrically arranged at its front and rear ends; the first adjustment mechanism 32 includes a first sliding member 321, a first driving member 322, a first roller 323 and a first push plate 324;

[0080] A first sliding member 321 is symmetrically arranged on both sides of one end of the mounting base 31; the first sliding member 321 is slidably connected to the mounting base 31; a first driving member 322 is arranged on the outer side of the mounting base 31; the two ends of the first driving member 322 are respectively fixedly connected to the two first sliding members 321; a first roller 323 is rotatably connected to the first driving member 322.

[0081] A first push plate 324 is provided on the side of the two first sliding members 321 that are close to each other; a first sliding groove 3241 is provided on the first push plate 324; the first push plate 324 and the mounting base 31 are connected by a first swing member 325 and a second swing member 326; the first swing member 325 and the second swing member 326 are hinged.

[0082] One end of the first swing member 325 is hinged to the first sliding member 321; the other end of the first swing member 325 is hinged to the first push plate 324; one end of the second swing member 326 is hinged to the mounting base 31; the other end of the second swing member 326 is rotatably connected to the first hinge shaft 327; the first hinge shaft 327 is slidably connected in the first sliding groove 3241;

[0083] A first mounting groove 3221 is evenly spaced on the first driving component 322; a first elastic element 328 is provided in the first mounting groove 3221; the first elastic element 328 abuts against the mounting base 31.

[0084] When the transport component 7 places the mounting base 31 on the connecting plate 22, the first adjustment mechanism 32 is in a non-working state. At this time, the two first push plates 324 at one end of the mounting base 31 do not contact the sheet metal part at that end and are located on the left and right sides of the sheet metal part at that end. The two first push plates 324 at the other end of the mounting base 31 do not contact the sheet metal part at that end and are located on the left and right sides of the sheet metal part at that end. When the connecting plate 22 moves the adjustment component 3 and the sheet metal part towards the welding station, the connecting plate 22 moves the mounting base... The movement of component 31 moves the two adjustment mechanisms 32, causing them to move. This, in turn, moves the sliding components 321, driving components 322, and rollers 323 at both ends of the mounting base 31 toward the welding station. Roller 323 then abuts against the ramp structure 111 on the left side of the driving base 11, causing it to roll along the ramp structure 111. This moves roller 323 toward the sheet metal part, causing the driving component 322 to move toward the sheet metal part, and thus the two adjustment mechanisms 321 at one end of the mounting base 31 move. Sliding member 321 moves simultaneously toward the center of mounting base 31. As sliding member 321 moves, it drives oscillating member 325 to oscillate, causing oscillating member 325 and oscillating member 326 to oscillate simultaneously. This drives pushing plate 324 toward the sheet metal part, bringing the two pushing plates 324 at one end of mounting base 31 closer together, adjusting the left and right position of the sheet metal part. When roller 323 rolls onto planar structure 112, driving member 322 and sliding member 326... 21 no longer moves towards the sheet metal part, and the two push plates 324 at one end of the mounting base 31 no longer approach each other. At this time, the side walls of the two push plates 324 at one end of the mounting base 31 respectively abut against the two side walls of a sheet metal part, completing the left and right position adjustment of one sheet metal part. Similarly, the side walls of the two push plates 324 at the other end of the mounting base 31 abut against the two side walls of another sheet metal part, completing the left and right position adjustment of the other sheet metal part, thus completing the left and right position adjustment of both sheet metal parts.

[0085] After welding is completed, as the connecting plate 22 moves the adjusting component 3 and the sheet metal part toward the release station, the connecting plate 22 drives the first roller 323 at both ends of the mounting base 31 to move along the corresponding first plane structure 112. When the first roller 323 moves away from the first plane structure 112, the elastic force of the first elastic element 328 causes the first driving element 322 to move, causing the first sliding element 321 to move away from the sheet metal part, driving the first swing element 325 and the second swing element 326 to move, causing the two first push plates 324 at the same end of the mounting base 31 to move away from each other until the distance between the two first push plates 324 is the maximum, so that the first adjusting mechanism 32 returns to the non-working state.

[0086] A second drive seat 12 is symmetrically arranged on the connecting seat 1; a second ramp structure 121 and a third ramp structure 123 are respectively provided at both ends of the second drive seat 12; a second planar structure 122 is provided between the second ramp structure 121 and the third ramp structure 123; a third mounting groove is provided on the third ramp structure 123; a third magnet 124 is fixedly connected in the third mounting groove;

[0087] The mounting base 31 is symmetrically provided with a second adjustment mechanism 33 at both ends; the second adjustment mechanism 33 includes a second pusher 331 and a second roller 332; the second pusher 331 is slidably connected to the mounting base 31; one end of the second pusher 331 is rotatably connected to the second roller 332; the other end of the second pusher is provided with a second push part 3311.

[0088] When the transport component 7 places the mounting base 31 on the connecting plate 22, the second adjustment mechanism 33 is in a non-working state. At this time, the distance between the two second pushers 331 at both ends of the mounting base 31 is at its maximum. The two second pushers 3311 do not contact the two sheet metal parts and are located on the front and rear sides of the two sheet metal parts. When the connecting plate 22 moves the adjustment component 3 and the sheet metal parts toward the welding station, the connecting plate 22 moves the mounting base 31, moves the two second adjustment mechanisms 33, and moves the second rollers 332 at both ends of the mounting base 31, so that the second rollers 332 abut against the second ramp structure 121 (at this time, the first roller 323 has already abutted against the first plane structure 112, and the first adjustment mechanism 32 has completed the adjustment of the left and right positions of the sheet metal parts), so that the mounting base 31 is in a working state. The second roller 332 at one end of the mounting base 31 rolls along the second inclined structure 121, causing the second roller 332 to move toward the sheet metal part, which in turn drives the second pusher 331 at one end of the mounting base 31 to move toward the sheet metal part, causing the second pusher 3311 to abut against the sheet metal part, and driving the sheet metal part to move toward the middle of the mounting base 31. When the second roller 332 abuts against the second planar structure 122, the sheet metal part stops moving. Similarly, the second pusher 3311 at the other end of the mounting base 31 abuts against the sheet metal part at that end, and drives the sheet metal part at that end to move toward the middle of the mounting base 31. When the two sheet metal parts stop moving, the welded joints of the two sheet metal parts abut together, and the welded joints are located on the plane formed by the lateral movement of the welded head of the welded part 4, thus completing the adjustment of the front and rear positions of the sheet metal parts.

[0089] After welding is completed, as the connecting plate 22 moves the adjusting component 3 and the sheet metal part toward the release station, it drives the second roller 332 at both ends of the mounting base 31 to continue rolling along the second plane structure 122. When the second roller 332 rolls to the third ramp structure 123, the third magnet 124 generates an attraction force on the second roller 332, causing the second roller 332 to roll along the third ramp structure 123, causing the second roller 332 to move away from the sheet metal part, causing the second pushing component 331 to move away from the sheet metal part, causing the second pushing part 3311 to detach from the sheet metal part, until the distance between the two second pushing components 331 is at its maximum, and the second adjusting mechanism 33 returns to the non-working state.

[0090] The conveying component 7 includes a first sliding seat 71, a third rack 72, a third motor 73, a third gear 74, a second sliding seat 75, a second threaded cylinder 76, a fourth motor 77, a second limiting component 78, and a second elastic component 79.

[0091] A sliding seat 71 is horizontally slidably connected to a connecting seat 1; a rack 72 is fixedly connected to a connecting seat 1; a motor 73 is fixedly connected to a sliding seat 71; a gear 74 is fixedly connected to the shaft of the motor 73; the gear 74 meshes with the rack 72.

[0092] A second sliding seat 75 is vertically slidably connected to a first sliding seat 71; a second shaft-shaped structure 751 is provided on the second sliding seat 75; a second threaded cylinder 76 is threadedly connected to the second shaft-shaped structure 751; the second threaded cylinder 76 is rotatably connected to the first sliding seat 71; a fourth motor 77 is fixedly connected to the first sliding seat 71; the fourth motor 77 is used to drive the second threaded cylinder 76 to rotate.

[0093] The second sliding seat 75 has a second connecting structure 752 symmetrically arranged at both ends; the second connecting structure 752 has a second connecting groove symmetrically arranged on the second connecting structure 752; the second limiting member 78 is slidably connected in the second connecting groove; one end of the second limiting member 78 has a second spherical structure 781; the other end of the second limiting member 78 has a second elastic member 79; one end of the second elastic member 79 abuts against the second limiting member 78; the other end of the second elastic member 79 abuts against the bottom surface of the second connecting groove; the fourth magnet 13 is fixedly connected to the connecting seat 1;

[0094] The mounting base 31 is symmetrically provided with a second insertion slot 312; the two opposite side walls of the second insertion slot 312 are provided with a second groove.

[0095] When the connecting plate 22 pauses its movement, the controller activates motor 77, which rotates threaded cylinder 76, causing shaft structure 751 to move downwards, sliding seat 75 to move downwards, and connecting structure 752 to move downwards, inserting it into insertion slot 312. When spherical structure 781 abuts against the opening of insertion slot 312, connecting structure 752 continues to move downwards. At this time, the sidewall of the opening of insertion slot 312 exerts a force on spherical structure 781, resisting the elastic force of elastic element 79, causing limiting element 78 to move into the connecting slot. The internal movement causes the second connecting structure 752 to continue moving downwards. When the second sliding seat 75 reaches its lowest position, the second spherical structure 781 is directly opposite the second groove. At this point, under the elastic force of the second elastic element 79, the second limiting element 78 moves to one side of the second groove, causing the second spherical structure 781 to abut against the second groove, thus forming a fixed connection between the mounting base 31 and the second connecting structure 752. Subsequently, the fourth motor 77 rotates in the reverse direction, driving the second threaded cylinder 76 to rotate in the reverse direction, causing the second sliding seat 75 to move upwards, driving the mounting base 31 to move upwards, and driving the adjusting component 3 to move upwards. After the moving seat 75 moves to its highest position, motor 77 stops working. Then motor 73 starts working, driving gear 74 to rotate. Gear 74 rolls on rack 72, causing sliding seat 71 to move. This moves sliding seat 71, sliding seat 75, mounting base 31, and adjusting component 3 simultaneously upwards towards the position to be adjusted. When sliding seat 71 reaches the top of the position, motor 73 stops working. Then motor 77 starts working again, causing sliding seat 75 and mounting base 31 to move downwards, reaching their lowest positions, where mounting base 31 abuts against the corresponding... On the connecting plate 22, the first slot 311 is fitted onto the plug-in structure 221, and then the second sliding seat 75 is moved upward. At this time, the third magnet 13 generates an attractive force on the mounting seat 31, which hinders the upward movement of the mounting seat 31 and resists the elastic force of the second elastic element 79, causing the second spherical structure 781 to disengage from the second groove, and causing the second connecting structure 752 to disengage from the second plug-in slot 312, causing the second connecting structure 752 to move upward. At the same time, the mounting seat 31 remains on the connecting plate 22, completing the handling of the adjustment component 3. After the second sliding seat 75 moves to the highest position, the first sliding seat 71 is moved above the release position for easy use next time.

[0096] The moving part 6 includes a fifth sliding seat 61, a fifth threaded cylinder 62, a fifth motor 63, a sixth sliding seat 64, a sixth threaded shaft 65, and a sixth motor 66;

[0097] A fifth sliding seat 61 is vertically slidably connected to the connecting seat 1; a fifth shaft-shaped structure 611 is provided on the fifth sliding seat 61; a fifth threaded cylinder 62 is threadedly connected to the fifth shaft-shaped structure 611; the fifth threaded cylinder 62 is rotatably connected to the connecting seat 1; a fifth motor 63 is fixedly connected to the connecting seat 1; the fifth motor 63 is used to drive the fifth threaded cylinder 62 to rotate.

[0098] The lower end of the fifth sliding seat 61 is symmetrically provided with a fifth connecting structure 612; the lower end of the fifth connecting structure 612 is connected to a pressure plate 5; the fifth sliding seat 61 is horizontally slidably connected to a sixth sliding seat 64; the lower end of the sixth sliding seat 64 is fixedly connected to a welding piece 4.

[0099] The No. 5 sliding seat 61 is rotatably connected to the No. 6 threaded shaft 65; the No. 6 sliding seat 64 is threadedly connected to the No. 6 threaded shaft 65; the No. 6 motor 66 is fixedly connected to the No. 5 sliding seat 61; the No. 6 motor 66 is used to drive the No. 6 threaded shaft 65 to rotate.

[0100] During welding, the controller activates motor 5 (63), which drives threaded cylinder 62 to rotate, causing sliding seat 61 to move downwards. This, in turn, moves welding part 4 and pressure plate 5 downwards. After pressure plate 5 presses against the sheet metal part, motor 5 stops working. Then, motor 66 activates, driving threaded shaft 65 to rotate. This causes sliding seat 64 to move laterally, moving welding part 4 laterally. Simultaneously, welding part 4 welds the joint between the two sheet metal parts, joining them together. After welding, motor 5 (63) reverses its rotation, causing sliding seat 61 to move upwards to its highest position. This also moves welding part 4 and pressure plate 5 to their highest positions, facilitating the movement of adjustment component 3 and the sheet metal part towards the welding station.

[0101] Both drive seat 11 and drive seat 12 are slidably connected to connecting seat 1; threaded shaft 81 and threaded shaft 82 are rotatably connected to connecting seat 1; threaded shaft 81 is threadedly connected to drive seat 11; threaded shaft 82 is threadedly connected to drive seat 12; pressure plate 5 is slidably connected to connecting structure 612; threaded shaft 83 is rotatably connected to connecting structure 612; pressure plate 5 is threadedly connected to threaded shaft 83.

[0102] By rotating the first threaded shaft 81, the first drive seat 11 is moved, changing the position of the first planar structure 112, changing the position of the first sliding member 321 when the first roller 323 abuts against the first planar structure 112, changing the swing angle of the first swing member 325 and the second swing member 326, changing the position of the first push plate 324, and changing the distance between the two first push plates 324 at one end of the mounting base 31, the left and right positions of sheet metal parts of different lengths (the distance in the left and right direction is the length, and the distance in the front and back direction is the width) are adjusted (the two first adjustment mechanisms 32 can also adjust the left and right positions of two sheet metal parts of different lengths at the same time), thus improving the applicability of the first adjustment mechanism 32.

[0103] By rotating the second threaded shaft 82, the second drive seat 12 is moved, changing the position of the second planar structure 122 and the position of the second pusher 331 when the second roller 332 is against the second planar structure 122. This adjusts the front and rear positions of sheet metal parts of different widths (the two second adjustment mechanisms 33 can also adjust the front and rear positions of two sheet metal parts of different widths), so that the welding joint of the two sheet metal parts is located on the plane formed by the lateral movement of the welding head of the welding part 4, thus improving the applicability of the second adjustment mechanism 33.

[0104] By rotating the No. 8 threaded shaft 83, the pressure plate 5 is moved, changing the distance between the bottom surface of the pressure plate 5 and the lower end of the welding head structure of the welding part 4, and adjusting the distance between the lower end of the welding head structure and the sheet metal part, so as to meet different welding requirements and improve the applicability of the welding parts.

[0105] The power mechanism 25 includes a second rack 251, a second connecting shaft 252, a second gear 253, a first gear 254, and a first motor 255;

[0106] A second rack 251 is fixedly connected to the connecting plate 22; a second connecting shaft 252 is provided at one end of the connecting seat 1 at an interval; the second connecting shaft 252 is rotatably connected to the connecting seat 1; a second gear 253 is fixedly connected to the second connecting shaft 252; a first motor 255 is fixedly connected to the connecting seat 1; a first gear 254 is fixedly connected to the shaft of the first motor 255; the second gear 253 meshes with the first gear 254.

[0107] When the conveying component 2 needs to operate, the controller activates the first motor 255, which drives the first gear 254 to rotate, which in turn drives the two second gears 253 to rotate, causing the second rack 251 above the second gear 253 to move (the second rack 251 on the connecting plate 22 above the second gear 253 meshes with the second gear 253), which in turn moves the connecting plate 22 above the second gear 253, thus moving all the connecting plates 22. With two second gears 253, the second rack 251 above each second gear 253 can mesh with at least one of the second gears 253, improving the reliability of the transmission between the second gears 253 and the second rack 251, and thus improving the reliability of the conveying component 2.

[0108] The conveying component 2 drives the sheet metal parts to move from left to right; the right end of the connecting seat 1 is provided with a second connecting shaft 252 at intervals.

[0109] The second connecting shaft 252 is located at the right end of the connecting seat 1. At this time, the second rack 251, which meshes with the second gear 253, is located between the first guide 23 and the second guide 24. The connecting plate 22 corresponding to the second rack 251 is located between the first guide 23 and the second guide 24, so that the connecting plate 22 is always in a horizontal state. When the second gear 253 rotates, the connecting plate 22 is prevented from arching, ensuring the meshing degree between the second rack 251 and the second gear 253, improving the reliability of the transmission between the second gear 253 and the second rack 251, and improving the reliability of the conveying component 2. The second connecting shaft 252 is located at the right end of the connecting seat 1. When the connecting plate 22 above the second connecting shaft 252 moves, it generates a pulling force on the connecting plate 22 on the left, driving the connecting plate 22 on the left to move, so that the connecting plate 22 above the first guide 23 is always in a horizontal state, improving the reliability of the conveying component 2.

[0110] A fan is also provided at the right end of the connecting seat 1; the fan's fixing cylinder is fixedly connected to the connecting seat 1.

[0111] The fan (a conventional axial fan, which is not specifically required in this article) blows air onto the sheet metal parts, accelerating the airflow around the weld seams of the sheet metal parts and dissipating heat from them.

[0112] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A precision laser welding device for automotive sheet metal parts, characterized in that: It includes a connecting seat (1), a conveying component (2), an adjusting component (3), a welding component (4), and a pressure plate (5); The connecting seat (1) is connected to the conveying component (2); the conveying component (2) is provided with two adjusting components (3); the conveying component (2) is used to drive the adjusting components (3) and the sheet metal parts to move; The adjustment component (3) includes a mounting base (31), a first adjustment mechanism (32), and a second adjustment mechanism (33); the first adjustment mechanism (32) is symmetrically arranged on the mounting base (31); the first adjustment mechanism (32) is used to adjust the left and right position of the sheet metal part; the second adjustment mechanism (33) is symmetrically arranged on the mounting base (31); the second adjustment mechanism (33) is used to adjust the front and rear position of the sheet metal part; A movable component (6) is connected to the connecting seat (1); the welded part (4) and the pressure plate (5) are connected to the movable component (6); the movable component (6) is used to drive the welded part (4) and the pressure plate (5) to rise or fall; the movable component (6) is used to drive the welded part (4) to move laterally; the welded part (4) is used to weld sheet metal parts; The connecting seat (1) is connected to a conveying component (7); the conveying component (7) is used to drive the adjusting component (3) to move; The conveying component (2) includes a rotating component (21), a connecting plate (22), a first guide component (23), a second guide component (24), and a power mechanism (25); The rotating parts (21) are symmetrically arranged at both ends of the connecting seat (1); the rotating parts (21) are rotatably connected to the connecting seat (1); Multiple connecting plates (22) are adjacent to each other to form a chain structure; the beginning and end of the chain structure are hinged; two adjacent connecting plates (22) are hinged together; the chain structure is sleeved on the outside of the two rotating parts (21); The first guide member (23) is evenly spaced on the connecting seat (1); the second guide member (24) is symmetrically arranged at both ends of the connecting seat (1); the second guide member (24) is located directly above the first guide member (23); both the first guide member (23) and the second guide member (24) are rotatably connected to the connecting seat (1); the distance between the axes of two adjacent first guide members (23) is less than half the length of the connecting plate (22); The connecting plate (22) is symmetrically provided with plug-in structures (221); the mounting base (31) is symmetrically provided with slot number 311; The power mechanism (25) is connected to the connecting seat (1); the power mechanism (25) is used to drive the connecting plate (22) to move; A drive seat (11) is symmetrically provided on the connecting seat (1); a ramp structure (111) is symmetrically provided at both ends of the drive seat (11); a planar structure (112) is provided between the two ramp structures (111); The first adjustment mechanism (32) is symmetrically arranged at the front and rear ends of the mounting base (31); the first adjustment mechanism (32) includes a first sliding member (321), a first driving member (322), a first roller (323) and a first push plate (324); The first sliding member (321) is symmetrically arranged on both sides of one end of the mounting base (31); the first sliding member (321) is slidably connected to the mounting base (31); the first driving member (322) is arranged on the outer side of the mounting base (31); the two ends of the first driving member (322) are respectively fixedly connected to the two first sliding members (321); the first roller (323) is rotatably connected to the first driving member (322); A first push plate (324) is provided on one side of each of the two first sliding members (321) that are close to each other; a first sliding groove (3241) is provided on the first push plate (324); the first push plate (324) and the mounting base (31) are connected by a first swing member (325) and a second swing member (326); the first swing member (325) and the second swing member (326) are hinged; One end of the first swing member (325) is hinged to the first sliding member (321); the other end of the first swing member (325) is hinged to the first push plate (324); one end of the second swing member (326) is hinged to the mounting base (31); the other end of the second swing member (326) is rotatably connected to the first hinge shaft (327); the first hinge shaft (327) is slidably connected in the first sliding groove (3241); The first driving component (322) is provided with a first mounting groove (3221) at even intervals; the first mounting groove (3221) is provided with a first elastic element (328); the first elastic element (328) abuts against the mounting base (31).

2. The precision laser welding device for automotive sheet metal parts according to claim 1, characterized in that: The connecting seat (1) is symmetrically provided with a second drive seat (12); the two ends of the second drive seat (12) are respectively provided with a second ramp structure (121) and a third ramp structure (123); a second planar structure (122) is provided between the second ramp structure (121) and the third ramp structure (123); a third mounting groove is provided on the third ramp structure (123); a third magnet (124) is fixedly connected in the third mounting groove; The second adjustment mechanism (33) is symmetrically arranged at both ends of the mounting base (31); the second adjustment mechanism (33) includes a second pusher (331) and a second roller (332); the second pusher (331) is slidably connected to the mounting base (31); one end of the second pusher (331) is rotatably connected to the second roller (332); the other end of the second pusher is provided with a second push part (3311).

3. The precision laser welding device for automotive sheet metal parts according to claim 2, characterized in that: The transport component (7) includes a first sliding seat (71), a third rack (72), a third motor (73), a third gear (74), a second sliding seat (75), a second threaded cylinder (76), a fourth motor (77), a second limiting component (78), and a second elastic component (79); The first sliding seat (71) is horizontally slidably connected to the connecting seat (1); the third rack (72) is fixedly connected to the connecting seat (1); the third motor (73) is fixedly connected to the first sliding seat (71); the third gear (74) is fixedly connected to the shaft of the third motor (73); the third gear (74) meshes with the third rack (72); The first sliding seat (71) is vertically slidably connected to the second sliding seat (75); the second sliding seat (75) is provided with a second shaft-shaped structure (751); the second shaft-shaped structure (751) is threadedly connected to the second threaded cylinder (76); the second threaded cylinder (76) is rotatably connected to the first sliding seat (71); the first sliding seat (71) is fixedly connected to the fourth motor (77); the fourth motor (77) is used to drive the second threaded cylinder (76) to rotate; The second sliding seat (75) has a second connecting structure (752) symmetrically arranged at both ends; the second connecting structure (752) has a second connecting groove symmetrically arranged on it; the second limiting member (78) is slidably connected in the second connecting groove; one end of the second limiting member (78) has a second spherical structure (781); the other end of the second limiting member (78) has a second elastic member (79); one end of the second elastic member (79) abuts against the second limiting member (78); the other end of the second elastic member (79) abuts against the bottom surface of the second connecting groove; a fourth magnet (13) is fixedly connected to the connecting seat (1); The mounting base (31) is symmetrically provided with a second insertion slot (312); the two opposite side walls of the second insertion slot (312) are provided with a second groove.

4. The precision laser welding device for automotive sheet metal parts according to claim 3, characterized in that: The moving part (6) includes a fifth sliding seat (61), a fifth threaded cylinder (62), a fifth motor (63), a sixth sliding seat (64), a sixth threaded shaft (65), and a sixth motor (66); The connecting seat (1) is vertically slidably connected to the fifth sliding seat (61); the fifth sliding seat (61) is provided with a fifth shaft-shaped structure (611); the fifth shaft-shaped structure (611) is threadedly connected to the fifth threaded cylinder (62); the fifth threaded cylinder (62) is rotatably connected to the connecting seat (1); the connecting seat (1) is fixedly connected to the fifth motor (63); the fifth motor (63) is used to drive the fifth threaded cylinder (62) to rotate; The lower end of the fifth sliding seat (61) is symmetrically provided with a fifth connecting structure (612); the lower end of the fifth connecting structure (612) is connected to the pressure plate (5); the sixth sliding seat (64) is horizontally slidably connected to the fifth sliding seat (61); the lower end of the sixth sliding seat (64) is fixedly connected to the welded part (4); The sixth threaded shaft (65) is rotatably connected to the fifth sliding seat (61); the sixth sliding seat (64) is threadedly connected to the sixth threaded shaft (65); the sixth motor (66) is fixedly connected to the fifth sliding seat (61); the sixth motor (66) is used to drive the sixth threaded shaft (65) to rotate.

5. The precision laser welding device for automotive sheet metal parts according to claim 4, characterized in that: Both the first drive seat (11) and the second drive seat (12) are slidably connected to the connecting seat (1); the connecting seat (1) is rotatably connected to the first threaded shaft (81) and the second threaded shaft (82); the first threaded shaft (81) is threadedly connected to the first drive seat (11); the second threaded shaft (82) is threadedly connected to the second drive seat (12); the pressure plate (5) is slidably connected to the fifth connecting structure (612); the fifth connecting structure (612) is rotatably connected to the eighth threaded shaft (83); the pressure plate (5) is threadedly connected to the eighth threaded shaft (83).

6. The precision laser welding device for automotive sheet metal parts according to claim 5, characterized in that: The power mechanism (25) includes a second rack (251), a second connecting shaft (252), a second gear (253), a first gear (254), and a first motor (255); The second rack (251) is fixedly connected to the connecting plate (22); the second connecting shaft (252) is spaced apart at one end of the connecting seat (1); the second connecting shaft (252) is rotatably connected to the connecting seat (1); the second gear (253) is fixedly connected to the second connecting shaft (252); the first motor (255) is fixedly connected to the connecting seat (1); the first gear (254) is fixedly connected to the shaft of the first motor (255); the second gear (253) meshes with the first gear (254).

7. The precision laser welding device for automotive sheet metal parts according to claim 6, characterized in that: The conveying component (2) drives the sheet metal part to move from left to right; the second connecting shaft (252) is arranged at a distance from the right end of the connecting seat (1).

8. The precision laser welding device for automotive sheet metal parts according to claim 7, characterized in that: The right end of the connecting seat (1) is also provided with a fan; the fixed cylinder of the fan is fixedly connected to the connecting seat (1).

Images