Laser welding machine

Abstract

The application relates to the technical field of laser welding, and discloses a laser welding machine, which comprises a welding table and a laser welding gun; two symmetrically-distributed conveying frames are installed on the welding table; a plurality of interval-distributed conveying rollers are rotatably installed on the conveying frames; a conveying belt mechanism is arranged on one side of the conveying rollers on the welding table; two symmetrically-distributed sliding rails are installed on the welding table; a sliding frame is slidably arranged on the sliding rails; the sliding frame is connected with a clamping assembly through an elastic assembly; and a regulating and controlling assembly matched with the clamping assembly is arranged on the sliding frame; the both ends of the welded joint part of the metal plate which is welded into one body are clamped and fixed, so that the influence of external force or shaking on the welded joint part during the transfer process of the metal plate can be effectively reduced, the stability of the metal plate during the outward transfer process is ensured, the welded joint part is prevented from being cracked or even broken due to the external force collision or shaking and bumping during the transfer process, and the stability during the transfer process is improved.

Description

Technical Field

[0001] This invention relates to the field of laser welding technology, specifically to a laser welding machine. Background Technology

[0002] Laser welding machines are precision welding devices that use a high-energy-density laser beam as a heat source to achieve localized melting and joining of materials. With advantages such as high welding speed, small heat-affected zone, and high weld quality (aesthetically pleasing and high-strength), they are widely used in automotive manufacturing, electronics industry, medical devices, aerospace, and other fields.

[0003] In existing technologies, when laser welding machines perform laser welding on two metal plates, they mostly place the two metal plates on a welding table for butt welding, fix the two butt metal plates with a fixing mechanism, and then drive the laser welding gun to move along the butt joint of the two metal plates for welding, thereby welding the two metal plates into one.

[0004] However, after welding two metal plates, the existing technology requires transferring the welded metal plates to facilitate the laser welding machine to continue welding other metal plates. However, since the metal plates have just been welded and the welded parts are in the cooling and solidification stage, the welded parts have low strength. If they are transferred immediately, they are easily subjected to external force collisions, bending, shaking, or bumping during the transfer process. The weld is prone to cracks or even breakage due to stress changes, posing a risk of movement.

[0005] To address the problems mentioned in the background, those skilled in the art have proposed laser welding machines. Summary of the Invention

[0006] The purpose of this invention is to provide a laser welding machine to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A laser welding machine includes a welding table and a laser welding torch. Two symmetrically distributed conveyor frames are mounted on the welding table. Several spaced-apart conveyor rollers are rotatably mounted on the conveyor frames. A conveyor belt mechanism is located on one side of the conveyor rollers on the welding table for removing the welded metal sheets from the welding table. Two symmetrically distributed slide rails are mounted on the welding table, and sliding frames are slidably mounted on the slide rails. The sliding frames are connected to a clamping assembly via an elastic component, and an adjustment component that cooperates with the clamping assembly is provided on the sliding frames. A cooling component is provided on the clamping assembly. The elastic component provides elastic tension to the clamping assembly, which is used to limit and clamp the weld ends of two metal sheets. The adjustment component drives the clamping assembly to move and complete the clamping of the weld ends of the metal sheets. The cooling component can cool the weld during the transfer of the metal sheets. The machine also includes: A top frame installed on the welding table; A movable component, which is mounted on a slide rail, is used to drive the sliding frame to move. The fixing components are located on both sides of the top frame and are used to fix the metal sheet.

[0008] As a preferred embodiment of the present invention, the clamping assembly includes a movable block that fits against the surface of the sliding frame. A support plate is provided on the side of the movable block facing the center of the welding table. An inner cavity is formed inside the movable block, and two symmetrically distributed guide rods are installed inside the inner cavity. A lifting block is slidably arranged on the guide rods. A first elastic element connected to the lifting block is provided at the bottom of the inner cavity. Two sets of symmetrically distributed limiting grooves are formed on the side of the movable block located on the support plate. The limiting grooves slide with the lifting block. A limiting clamping plate is fixedly connected to the lifting block.

[0009] As a preferred embodiment of the present invention, the control assembly includes a third telescopic member installed on the sliding frame. The telescopic end of the third telescopic member is fixedly connected to the control plate. Push rods and drive rods are installed on both sides of the bottom of the control plate. The movable block is provided with an inclined groove that cooperates with the push rod on the side facing the sliding frame. The top of the movable block is provided with an insertion hole that cooperates with the drive rod.

[0010] As a preferred embodiment of the present invention, the cooling assembly includes a cooling head installed in the middle of the movable block and located on one side of the tray. The cooling head is provided with a plurality of downward-sloping air outlets. The cooling head is connected to a guide pipe, which passes through the tray and is connected to a fan installed on the side wall of the tray. A pressure sensor is provided on the side of the sliding frame near the movable block.

[0011] As a preferred embodiment of the present invention, the elastic component includes two symmetrically distributed slide rods slidably disposed on the side wall of the sliding frame. The slide rods are connected to the movable block, and a baffle is installed at the end of the slide rod away from the movable block. A second elastic element sleeved on the slide rod is disposed between the movable block and the sliding frame.

[0012] As a preferred embodiment of the present invention, the moving component includes a first screw rotatably disposed within one of the slide rails, the first screw being threadedly connected to the sliding frame, and a first driving member connected to the first screw being mounted at the end of the slide rail.

[0013] As a preferred embodiment of the present invention, the fixing component includes fixing arms installed on both sides of the top frame, a second telescopic member is installed on the fixing arm, and the telescopic end of the second telescopic member is fixedly connected to the fixing plate.

[0014] As a preferred embodiment of the present invention, a limiting component is provided on the welding table and at the bottom of the conveyor roller for limiting the welding of the metal sheet. The component includes two oppositely distributed first telescopic members installed on the welding table. The telescopic end of the first telescopic member is equipped with a base support located between the welding table and the conveyor roller. Several limiting plates inserted on both sides of the conveyor frame are installed at both ends of the base support.

[0015] As a preferred embodiment of the present invention, the top frame is provided with a drive assembly connected to the laser welding gun for realizing the moving welding of the laser welding gun. The drive assembly includes two side plates installed at the bottom of the top frame, a second screw rotatably disposed between the two side plates, a movable frame that slides with the top frame and is threadedly connected to the second screw, the movable frame being connected to the laser welding gun, and a second drive component connected to the second screw installed on one of the side plates.

[0016] The present invention has the following advantages: After welding is completed, by adjusting the component and cooperating with the elastic component, the clamping component can first be driven to move towards both ends of the weld of the welded metal plate. Then, the clamping component will clamp the two ends of the weld of the metal plate. By clamping and fixing the two ends of the weld of the welded metal plate, the influence of external force or shaking on the weld during the transfer of the metal plate can be effectively reduced, ensuring the stability of the metal plate during the outward transfer process. This avoids cracking or even breakage of the weld due to external force collision or shaking during the transfer process, thus improving the stability of the transfer process. Furthermore, as the sliding frame moves towards the side of the conveyor belt mechanism, the cooling mechanism will also cool the weld of the metal plate, accelerating the cooling rate of the weld, increasing the strength of the weld during the transfer of the metal plate, and further improving the stability of the metal plate transfer. Attached Figure Description

[0017] Figure 1This is a schematic diagram of a laser welding machine.

[0018] Figure 2 This is a schematic diagram of the structure of the slide rail and sliding frame in a laser welding machine.

[0019] Figure 3 This is a schematic diagram of the clamping component in a laser welding machine.

[0020] Figure 4 This is a schematic diagram of the internal structure of the moving block in a laser welding machine.

[0021] Figure 5 This is a schematic diagram of the elastic component in a laser welding machine.

[0022] Figure 6 for Figure 5 Front view.

[0023] Figure 7 This is a schematic diagram of the cooling component in a laser welding machine.

[0024] Figure 8 This is a schematic diagram of the conveyor roller and conveyor belt mechanism in a laser welding machine.

[0025] Figure 9 This is a schematic diagram of the limiting component in a laser welding machine.

[0026] Figure 10 This is a schematic diagram of the drive assembly and the stationary assembly in a laser welding machine.

[0027] In the diagram: 101. Welding table; 102. Conveyor frame; 103. Conveyor roller; 104. Slide rail; 105. Sliding frame; 106. Top frame; 107. Laser welding gun; 108. Conveyor belt mechanism; 2. Limiting assembly; 201. First telescopic component; 202. Base support; 203. Limiting plate; 3. Moving assembly; 301. First screw; 302. First driving component; 4. Driving assembly; 401. Side plate; 402. Second screw; 403. Moving frame; 404. Second driving component; 5. Fixing assembly; 501. Fixing arm; 502. Second telescopic component; 503. Fixing plate; 6. Clamp Holding component; 601, movable block; 602, support plate; 603, inner cavity; 604, guide rod; 605, lifting block; 606, first elastic element; 607, limiting groove; 608, limiting clamp; 7, elastic component; 701, sliding rod; 702, baffle; 703, second elastic element; 8, regulating component; 801, third telescopic component; 802, regulating plate; 803, push rod; 804, inclined groove; 805, drive rod; 806, insertion hole; 9, cooling component; 901, pressure sensor; 902, cooling head; 903, air outlet; 904, guide tube; 905, fan. Detailed Implementation

[0028] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0029] Please see Figure 1-10 A laser welding machine includes a welding table 101 and a laser welding gun 107. Two symmetrically distributed conveyor frames 102 are mounted on the welding table 101. Several spaced-apart conveyor rollers 103 are rotatably mounted on each conveyor frame 102. Along the length of the conveyor frame 102, the width of the left and right conveyor rollers 103 is the same as the width of the metal sheet to be welded, while the width of the middle conveyor roller 103 is smaller than the width of the left and right conveyor rollers 103. A conveyor belt mechanism 108 (conveyor belt mechanism 108 is existing technology and will not be described in detail here) is provided on one side of the conveyor rollers 103 on the welding table 101 for conveying the welded metal sheet. To achieve stable conveying of the metal sheet, a support plate can be provided at the bottom of the conveyor belt of the conveyor belt mechanism 108 to support the conveyor belt, thus improving the stability of the conveyor belt mechanism 108 when conveying the metal sheet. Two symmetrically distributed slide rails 104 are installed, and a sliding frame 105 is slidably mounted on the slide rails 104. The sliding frame 105 is connected to the clamping assembly 6 via an elastic component 7, and an adjustment component 8 that cooperates with the clamping assembly 6 is provided on the sliding frame 105. A cooling component 9 is provided on the clamping assembly 6. The elastic component 7 provides elastic tension to the clamping assembly 6. The clamping assembly 6 is used to limit and clamp the weld ends of two metal plates. The adjustment component 8 is used to drive the clamping assembly 6 to move and complete the clamping of the weld ends of the metal plates. The cooling component 9 can cool the weld during the transfer of the metal plates. The assembly also includes: A top frame 106 is installed on the welding table 101; The movable component 3 is mounted on the slide rail 104 and is used to drive the sliding frame 105 to move. Fixing component 5 is disposed on both sides of the top frame 106 and is used to fix the metal plate.

[0030] In one instance of this embodiment, please refer to Figure 3 and Figure 4The clamping assembly 6 includes a movable block 601 that fits against the surface of the sliding frame 105. A support plate 602 is provided on the side of the movable block 601 facing the middle of the welding table 101. An inner cavity 603 is provided inside the movable block 601. Two symmetrically distributed guide rods 604 are installed in the inner cavity 603. A lifting block 605 is slidably disposed on the guide rods 604. A first elastic element 606 connected to the lifting block 605 is provided at the bottom of the inner cavity 603. Two sets of symmetrically distributed limiting grooves 607 are provided on the side of the movable block 601 located on the support plate 602. The limiting grooves 607 slide with the lifting block 605. A limiting clamping plate 608 is fixedly connected to the lifting block 605.

[0031] In the initial state, due to the restriction of the elastic component 7, the movable block 601 and the sliding frame 105 are in a close fit, and the top plane of the support plate 602 is flush with the top plane supported by the conveyor roller 103. This allows the support plate 602 to support the bottom ends of the joint between the two metal plates after the metal plate is placed on the conveyor roller 103 and the position is completed. This also facilitates the subsequent cooperation between the limiting clamp 608 and the support plate 602 to clamp and fix the weld ends of the metal plate.

[0032] Specifically, after the metal sheet welding is completed, the control component 8 drives the movable block 601 to move towards the center of the welding table 101, causing the support plate 602 to move towards the center of the metal sheet until the limiting clamping plate 608 moves to the top of both ends of the metal sheet weld. Then, the control component 8 continues to drive the lifting block 605 to descend along the guide rod 604, thereby pushing the limiting clamping plate 608 down until the limiting clamping plate 608 completes the clamping of both ends of the metal sheet weld. There is a gap between the two limiting clamping plates 608, which can avoid the limiting clamping plate 608 directly clamping the weld, so that the force application point of the limiting clamping plate 608 is on both sides of the metal sheet weld, thus avoiding damage to the weld by clamping. The first elastic element 606 is set so that when the clamping is released, the lifting block 605 can drive the limiting clamping plate 608 to reset.

[0033] Furthermore, in order to facilitate the control of the clamping force of the limiting clamp 608 on the metal sheet, a sensor can be installed on the limiting clamp 608 to detect the magnitude of the clamping force. This allows the clamping force to be adjusted according to factors such as the material of the sheet.

[0034] Furthermore, the specific structure of the first elastic element 606 is not limited. In this embodiment, the first elastic element 606 is set as a spring.

[0035] In one instance of this embodiment, please refer to Figure 3 , Figure 5 and Figure 6The control component 8 includes a third telescopic member 801 mounted on the sliding frame 105. The telescopic end of the third telescopic member 801 is fixedly connected to the control plate 802. Push rods 803 and drive rods 805 are mounted on both sides of the bottom of the control plate 802. The movable block 601 is provided with a slanted groove 804 that cooperates with the push rod 803 on the side facing the sliding frame 105. The top of the movable block 601 is provided with an insertion hole 806 that cooperates with the drive rod 805.

[0036] In the initial state, the push rod 803 and the drive rod 805 are located above the movable block 601, and at this time the push rod 803 is facing the end of the inclined groove 804 near the movable block 601, while the drive rod 805 is misaligned with the insertion hole 806.

[0037] Specifically, when the third telescopic component 801 drives the control plate 802 to descend, the control plate 802 will simultaneously drive the push rod 803 and the drive rod 805 to descend. During this process, the push rod 803 will first contact the inclined groove 804, and the inclined groove 804 can push the movable block 601 to move out of the sliding frame 105. When the push rod 803 passes the inclined groove 804, the movement of the movable block 601 is completed. At this time, the drive rod 805 will align with the insertion hole 806 on the movable block 601. As the control plate 802 continues to descend, the drive rod 805 will be inserted into the inner cavity 603 of the movable block 601 from the insertion hole 806, and push the lifting block 605, causing the lifting block 605 to descend, which in turn can drive the limiting clamping plate 608 to descend and clamp and fix the two ends of the weld of the metal plate.

[0038] Furthermore, the specific structure of the third telescopic member 801 is not limited. In this embodiment, the third telescopic member 801 is configured as a hydraulic rod.

[0039] In one instance of this embodiment, please refer to Figure 3 and Figure 7 The cooling assembly 9 includes a cooling head 902 installed in the middle of the movable block 601 and located on one side of the support plate 602. The cooling head 902 is provided with several downward-sloping air outlets 903, which can facilitate the airflow blown out of the air outlets 903 to cover the weld seam of the metal plate. The cooling head 902 is connected to a guide tube 904, which passes through the support plate 602 and is connected to a fan 905 installed on the side wall of the support plate 602. The air inlet of the fan 905 is provided with a filter screen to prevent debris from entering the guide tube 904. A pressure sensor 901 is provided on the side of the sliding frame 105 near the movable block 601.

[0040] In the initial state, due to the elastic tension of the elastic component 7, the movable block 601 is in contact with the sliding frame 105 and squeezes the pressure sensor 901. The controller (the control module of this device, not shown in the figure) monitors the pressure data of the pressure sensor 901. When the pressure sensor 901 detects the pressure data, the fan 905 is in a stopped state. When the movable block 601 separates from the pressure sensor 901 and the pressure sensor 901 does not detect the pressure data, the fan 905 will start and blow the airflow through the air outlet 903 of the cooling head 902 through the guide pipe 904. In this way, the weld can be continuously cooled during the transfer of metal plates, thereby improving the weld strength of the metal plates during the transfer process.

[0041] Specifically, after the metal sheet is welded, the control component 8 drives the clamping component 6 to move and clamp and limit the two ends of the weld of the metal sheet. At this time, the movable block 601 separates from the sliding frame 105, and the pressure sensor 901 cannot detect pressure data. At this time, the fan 905 starts and delivers airflow from the guide pipe 904 to the cooling head 902. The air outlet 903 of the cooling head 902 blows cold air obliquely towards the weld of the metal sheet, which can accelerate the cooling speed of the weld.

[0042] In one instance of this embodiment, please refer to Figure 5 The elastic component 7 includes two symmetrically distributed slide rods 701 that are slidably disposed on the side wall of the sliding frame 105. The slide rods 701 are connected to the movable block 601. A baffle 702 is installed at the end of the slide rod 701 away from the movable block 601. A second elastic element 703 is sleeved on the slide rod 701 between the movable block 601 and the sliding frame 105.

[0043] Under the elastic tension of the second elastic element 703, the movable block 601 will be in a state of attachment with the sliding frame 105, and the slide bar 701 is used to limit the movement of the movable block 601. After the control component 8 releases the drive of the movable block 601, the movable block 601 will reset and re-attach to the sliding frame 105 under the action of the second elastic element 703.

[0044] Furthermore, the specific structure of the second elastic element 703 is not limited. In this embodiment, the second elastic element 703 is set as a spring.

[0045] In one instance of this embodiment, please refer to Figure 1 and Figure 2 The moving component 3 includes a first screw 301 rotatably disposed in one of the slide rails 104, the first screw 301 being threadedly connected to the sliding frame 105, and a first driving member 302 connected to the first screw 301 being installed at the end of the slide rail 104.

[0046] To facilitate the movement of the welded metal sheet, after the clamping assembly 6 clamps both ends of the weld seam of the metal sheet, the sliding frame 105 can be driven by the moving assembly 3 to move along the slide rail 104 toward one side of the conveyor belt mechanism 108, thereby moving the metal sheet to the right conveyor roller 103 for placement. After the laser welding gun 107 completes the welding operation on the next set of metal sheets, the metal sheet placed on the right conveyor roller 103 and welded together is pushed onto the conveyor belt mechanism 108 and then transported out of the welding table 101. After the metal sheet is placed on the right conveyor roller 103 for a period of time to cool down, the weld seam of the metal sheet is at a high strength and can be transferred through the conveyor belt mechanism 108. The method of pushing it onto the conveyor belt mechanism 108 can be manual or mechanical, and there is no restriction here.

[0047] Specifically, the first driving component 302 is activated, which drives the first screw 301 to rotate. The first screw 301 then drives the sliding frame 105 to move axially along the slide rail 104.

[0048] Furthermore, the specific structure of the first driving component 302 is not limited. In this embodiment, the first driving component 302 is configured as a motor.

[0049] In one instance of this embodiment, please refer to Figure 1 , Figure 2 and Figure 10 The fixing component 5 includes fixing arms 501 installed on both sides of the top frame 106, and a second telescopic member 502 is installed on the fixing arm 501. The telescopic end of the second telescopic member 502 is fixedly connected to the fixing plate 503.

[0050] After the metal plates are positioned and joined on the conveyor roller 103, the two metal plates can be fixed by the fixing component 5, which can ensure the stability of the laser welding process.

[0051] Specifically, the second telescopic component 502 is activated, which drives the fixed plate 503 to descend, so that the fixed plate 503 abuts against the top of the metal plate, and can fix the metal plate in conjunction with the conveyor roller 103.

[0052] Furthermore, the specific structure of the second telescopic member 502 is not limited. In this embodiment, the specific structure of the second telescopic member 502 is set as a hydraulic rod.

[0053] In one instance of this embodiment, please refer to Figure 8 and Figure 9A limiting component 2 is provided on the welding table 101 and at the bottom of the conveyor roller 103 to limit the welding of the metal plate. It includes two oppositely distributed first telescopic members 201 installed on the welding table 101. The telescopic end of the first telescopic member 201 is equipped with a base support 202 located between the welding table 101 and the conveyor roller 103. Several limiting plates 203 inserted on both sides of the conveyor frame 102 are installed at both ends of the base support 202.

[0054] The width of the limiting plates 203 on both sides of the base 202 is the same as the width of the metal plate to be welded. This can limit the metal plate placed on the conveyor roller 103, making it easier for the butt joint of the metal plate to move and align with the laser welding gun 107.

[0055] Specifically, by activating the first telescopic component 201, the first telescopic component 201 drives the base support 202 to rise, causing the limiting plate 203 to rise. In conjunction with the conveyor roller 103, the metal sheet can be limited. Then, the position of the metal sheet can be adjusted so that its joint gap is aligned with the laser welding gun 107. When it is necessary to transfer the welded metal sheet, the first telescopic component 201 will drive the base support 202 to fall, causing the limiting plate 203 to fall. This will prevent movement interference with the clamping component 6 during the movement of the welded metal sheet.

[0056] Furthermore, the specific structure of the first telescopic member 201 is not limited. In this embodiment, the first telescopic member 201 is configured as a hydraulic rod.

[0057] In one instance of this embodiment, please refer to Figure 2 and Figure 10 The top frame 106 is provided with a drive assembly 4 connected to the laser welding gun 107 for moving the laser welding gun 107 for welding. The drive assembly 4 includes two side plates 401 installed at the bottom of the top frame 106. A second screw 402 is rotatably arranged between the two side plates 401. A movable frame 403 that is threadedly connected to the second screw 402 and slides with the top frame 106 is connected to it. The top frame 106 is provided with a sliding groove arranged along the axial direction of the second screw 402. The movable frame 403 moves along the sliding groove and is connected to the laser welding gun 107. A second drive member 404 connected to the second screw 402 is installed on one of the side plates 401.

[0058] The laser welding gun 107 can be driven to perform moving welding by the drive component 4. Specifically, the second drive component 404 is activated, which drives the second screw 402 to rotate. The second screw 402 drives the moving frame 403 to move axially along the top frame 106, so that the laser welding gun 107 can move and weld along the butt joint of the metal plate.

[0059] Furthermore, the specific structure of the second driving component 404 is not limited. In this embodiment, the second driving component 404 is configured as a motor.

[0060] This invention places two metal plates on the left conveyor roller 103 and limits their position using the limiting component 2 before joining them. This facilitates the alignment of the laser welding gun 107's welding path with the joint gap of the metal plates. The metal plates are then pushed to position the laser welding gun 107 directly over the joint gap. The two metal plates are then fixed using the fixing component 5 to ensure stability during laser welding. The driving component 4 then drives the laser welding gun 107 to move and weld along the joint gap of the metal plates. After welding, the process is controlled by adjusting... Component 8, in conjunction with elastic component 7, can first drive clamping component 6 to move towards both ends of the weld seam of the welded metal sheet. Then, clamping component 6 clamps both ends of the weld seam of the metal sheet (note that clamping component 6 only clamps the two sides of the weld seam of the two metal sheets, not directly clamping the weld seam). By clamping and fixing both ends of the weld seam of the welded metal sheet, the impact of external force or shaking on the weld seam during the transfer of the metal sheet can be effectively reduced, ensuring the stability of the metal sheet during the outward transfer process and preventing cracking or even breakage of the welded part due to external force collision or shaking during the transfer. The cracking mechanism improves stability during the transfer process. Then, the fixing component 5 releases its grip on the metal sheet. Driven by the moving component 3, the sliding frame 105 moves along the slide rail 104 towards one side of the conveyor belt mechanism 108, cooperating with the conveyor roller 103 to move the metal sheet to the right conveyor roller 103. This allows the newly welded metal sheet to be smoothly moved out of the welding area of ​​the laser welding gun 107, facilitating the laser welding gun 107 to continue welding other metal sheets. After the metal sheet is in place, the clamping component 6 releases its clamping limit on the metal sheet, and then the sliding frame 105 resets. The moved metal sheet can then be placed on the right conveyor belt. The metal sheet is cooled on roller 103. When the next metal sheet is welded, the metal sheet that was originally on the right conveyor roller 103 is pushed to the conveyor belt mechanism 108. After the metal sheet is placed on the right conveyor roller 103 for a period of time to cool, the weld strength of the metal sheet is high and it can be transferred through the conveyor belt mechanism 108. During the process of the sliding frame 105 moving towards the conveyor belt mechanism 108, the cooling mechanism will also cool the weld of the metal sheet, accelerate the cooling speed of the weld, improve the strength of the weld during the movement of the metal sheet, and further improve the stability of the metal sheet transfer.

[0061] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0062] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A laser welding machine, comprising a welding table and a laser welding torch, characterized in that, Two symmetrically distributed conveyor frames are mounted on the welding platform. Several spaced-apart conveyor rollers are rotatably mounted on the conveyor frames. A conveyor belt mechanism is located on one side of the conveyor rollers on the welding platform to remove the welded metal sheets from the welding platform. Two symmetrically distributed slide rails are mounted on the welding platform, and sliding frames are slidably mounted on the slide rails. The sliding frames are connected to a clamping assembly via an elastic component, and an adjustment component that cooperates with the clamping assembly is provided on the sliding frames. A cooling component is provided on the clamping assembly. The elastic component provides elastic tension to the clamping assembly. The clamping assembly is used to limit and clamp the weld ends of the two metal sheets. The adjustment component is used to drive the clamping assembly to move and complete the clamping of the weld ends of the metal sheets. The cooling component can cool the weld during the transfer of the metal sheets. The welding platform also includes: A top frame installed on the welding table; A movable component, which is mounted on a slide rail, is used to drive the sliding frame to move. A fixing assembly is provided on both sides of the top frame for fixing the metal sheet. The clamping assembly includes a movable block that fits against the surface of the sliding frame. A support plate is provided on the side of the movable block facing the center of the welding table. An inner cavity is opened inside the movable block, and two symmetrically distributed guide rods are installed in the inner cavity. A lifting block is slidably arranged on the guide rods. A first elastic element connected to the lifting block is provided at the bottom of the inner cavity. Two sets of symmetrically distributed limiting grooves are opened on the side of the movable block located on the support plate. The limiting grooves slide with the lifting block. A limiting clamping plate is fixedly connected to the lifting block. The control assembly includes a third telescopic component mounted on the sliding frame. The telescopic end of the third telescopic component is fixedly connected to the control plate. Push rods and drive rods are installed on both sides of the bottom of the control plate. The movable block has an inclined groove that mates with the push rod on the side facing the sliding frame. The top of the movable block has an insertion hole that mates with the drive rod. In the initial state, the push rod and drive rod are located above the movable block, with the push rod facing the end of the inclined slot near the movable block, while the drive rod is misaligned with the socket.

2. The laser welding machine according to claim 1, characterized in that, The cooling assembly includes a cooling head installed in the middle of the movable block and located on one side of the tray. The cooling head is provided with several downward-sloping air outlets. The cooling head is connected to a guide pipe, which passes through the tray and is connected to a fan installed on the side wall of the tray. A pressure sensor is provided on the side of the sliding frame near the movable block.

3. The laser welding machine according to claim 2, characterized in that, The elastic component includes two symmetrically distributed slide rods that are slidably disposed on the side wall of the sliding frame. The slide rods are connected to the movable block. A baffle is installed at the end of the slide rod away from the movable block. A second elastic element is sleeved on the slide rod between the movable block and the sliding frame.

4. The laser welding machine according to claim 3, characterized in that, The moving component includes a first screw rotatably disposed within one of the slide rails, the first screw being threadedly connected to the slide frame, and a first drive member connected to the first screw being mounted at the end of the slide rail.

5. The laser welding machine according to claim 1, characterized in that, The fixing assembly includes fixing arms installed on both sides of the top frame, and a second telescopic member is installed on the fixing arm. The telescopic end of the second telescopic member is fixedly connected to the fixing plate.

6. The laser welding machine according to claim 1, characterized in that, A limiting component is provided on the welding platform and at the bottom of the conveyor roller to limit the welding of the metal sheet. It includes two oppositely distributed first telescopic members installed on the welding platform. The telescopic end of the first telescopic member is equipped with a base support located between the welding platform and the conveyor roller. Several limiting plates inserted on both sides of the conveyor frame are installed at both ends of the base support.

7. The laser welding machine according to claim 5, characterized in that, The top frame is equipped with a drive assembly connected to the laser welding gun for moving the laser welding gun for welding. It includes two side plates installed at the bottom of the top frame, and a second screw is rotatably arranged between the two side plates. A movable frame that slides with the top frame is threaded onto the second screw. The movable frame is connected to the laser welding gun. A second drive component connected to the second screw is installed on one of the side plates.

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