A welding press mechanism for a laser welding device

Abstract

The application relates to the technical field of laser welding, in particular to a welding and pressing mechanism for a laser welding device, which comprises a bottom plate and a pressing plate, the pressing plate is detachably arranged above the bottom plate, the bottom plate and the pressing plate are used for clamping a plate to be welded, further comprises a turnover plate, one side above the bottom plate is provided with an assembly groove, one end of the assembly groove is fixedly provided with a fixed plate, the turnover plate is located inside the other end of the assembly groove, one side of the turnover plate is rotatably connected to the top of the fixed plate through a rotating shaft, an angle adjusting mechanism is arranged at the center of the side edge of the bottom plate, and the rotating shaft is driven to rotate through the angle adjusting mechanism; the fixed plate and the turnover plate which can be turned around the rotating shaft are arranged on the bottom plate, the rotating shaft is driven to rotate by the angle adjusting mechanism, the included angle between the turnover plate and the fixed plate can be adjusted according to different workpiece connection modes, the adaptation to different included angle plates is realized, and a special clamp does not need to be newly made for each included angle.

Description

Technical Field

[0001] This invention relates to the field of laser welding technology, and in particular to a welding clamping mechanism for a laser welding apparatus. Background Technology

[0002] In the laser welding process, the main function of the clamping device is to ensure that the welded parts remain stable during welding, and to avoid affecting the welding quality due to welding deformation or workpiece contour errors. By applying appropriate pressure, the tightness of the welded joint can be ensured, thereby improving the welding strength and sealing performance.

[0003] In laser welding of plate-type workpieces, there are common scenarios where two plates are joined at corners, such as sealing the four corners of thin-walled boxes, corner welding of frame folded edges, and peripheral sealing welding of cover plates and flanged bottom plates. To ensure the quality of the weld, it is usually necessary to reliably limit and tighten the connection between the two plates before or during welding, so that the included angle, misalignment and contact gap of the two plates remain stable, and the relative displacement caused by welding thermal deformation is suppressed. Then the laser welding head completes the welding along the connection line.

[0004] Existing technologies mostly employ fixed-angle clamping components or special fixtures that correspond one-to-one with the workpiece's angle. The angle is maintained by V-shaped positioning blocks, right-angle positioning seats, or pressure feet that match the angle of the plate surface. However, when the workpiece connection method changes, the angles of the two plates are different, or the same production line needs to be compatible with multiple angle specifications, the original fixtures are difficult to use universally. Often, it is necessary to redesign and manufacture clamping components that can adapt to the angle, which leads to increased fixture development and processing costs and low changeover efficiency. At the same time, simplifying fixtures in pursuit of universality can easily lead to problems such as insufficient fit, offset of the clamping force application point, and local suspension, causing uneven gaps and fluctuations in weld formation. Furthermore, when the fixture volume is large, it may also interfere with the welding head or shielding gas mechanism. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that the clamping angle of the clamping mechanism for the welding plate is difficult to adjust in the prior art, and to propose a welding clamping mechanism for laser welding device.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a welding clamping mechanism for a laser welding device, comprising a base plate and a pressure plate, wherein the pressure plate is detachably disposed above the base plate, and the base plate and the pressure plate are directly used to clamp the plate to be welded, and further comprising:

[0007] The flip plate has an assembly groove on one side of the upper part of the base plate. A fixing plate is fixed at one end of the assembly groove. The flip plate is located inside the other end of the assembly groove. The upper part of one side of the flip plate is rotatably connected to the upper part of the fixing plate through a rotating shaft. An angle adjustment mechanism is provided at the center of the side of the base plate. The rotating shaft is driven to rotate through the angle adjustment mechanism.

[0008] The support frame has two sets, which are respectively located above the fixed plate and the flip plate, and the end face of the support frame is assembled and connected to the pressure plate.

[0009] The guide wheels are provided in two sets and are respectively slidably mounted on the flip plate and the fixed plate via sliders. Both guide wheels are located between the flip plate and the fixed plate. A linkage frame is slidably mounted above the two guide wheels, and a guide ring is provided at one end of the linkage frame.

[0010] Specifically, the angle adjustment mechanism includes a fixed block, a ratchet, a pawl, and an adjustment shaft. The fixed block is located at the center of one side of the base plate. One end of the adjustment shaft passes through the fixed block and is linked to the rotating shaft. An installation groove is provided in the fixed block. The ratchet and pawl are located in the installation groove. The ratchet is sleeved on the outside of the adjustment shaft. The pawl is rotatably located below the installation groove and is adapted to the ratchet. One side of the pawl is assembled and connected to the installation groove through a first spring.

[0011] Preferably, by rotating the adjusting shaft, the rotating shaft and ratchet are driven to rotate. When the ratchet rotates in the forward direction, it can squeeze the pawl to rotate towards the first spring.

[0012] Specifically, one end of the mounting groove is connected to an inner groove, and a first conductive disk is provided in the inner groove through a second spring. A second conductive disk electrically connected to the first conductive disk is provided at one end of the inner groove. A side groove is provided on the side wall of the adjusting shaft located in the inner groove. An inner shaft is slidably provided inside the adjusting shaft. One end of the side wall of the inner shaft is assembled and connected to the first conductive disk through a side block. The side block is slidably provided in the side groove. The other end of the inner shaft is provided at the outer end of the adjusting shaft.

[0013] Specifically, a first magnetic sheet is provided inside the mounting groove, a second magnetic sheet is provided on one side of the pawl and is attracted to the first magnetic sheet, a conductive strip is provided inside the fixing block, and the two ends of the conductive strip are electrically connected to the first magnetic sheet and the second conductive disk respectively. A battery is provided inside the inner shaft, and the first conductive disk is powered by the battery.

[0014] Preferably, when it is necessary to rotate the shaft in the reverse direction, the second spring is compressed by pushing the inner shaft through the inner axial adjustment shaft, which causes the first conductive disk and the second conductive disk to be electrically connected, the second conductive disk to be energized and the conductive strip to be electrically connected, the conductive strip to be electrically connected and the first magnetic sheet to generate magnetism and attract each other to the first magnetic sheet, causing the pawl to retract in the mounting groove and not engage with the ratchet. At this time, the shaft can rotate in the reverse direction.

[0015] Specifically, the support frame includes a mounting frame, a fixing frame, and a hinge frame. The fixing frames on the two sets of support frames are respectively vertically mounted on the flip plate and the fixing plate. The fixing frame is hinged to the mounting frame through the hinge frame. The end face of the mounting frame is perpendicular to the pressure plate. One side of the fixing frame is perpendicular to the mounting frame through a telescopic shaft assembly. The end face of the telescopic shaft assembly is slidably connected to the mounting frame through a sliding frame.

[0016] Preferably, by setting the fixed frame, the telescopic shaft assembly, and the mounting frame perpendicular to each other, it can be ensured that the mounting frame and the fixed frame are always parallel, so that the pressure plate can always be perpendicular to the flip plate or the fixed plate.

[0017] Specifically, the fixed plate and the flip plate are respectively provided with side frames on one side, and the side frames are provided with sliding grooves on the side facing the pressure plate. The side of the pressure plate is slidably connected to the sliding grooves through sliding blocks. The pressure plate is set perpendicular to the side frames, and the sliding grooves are right-angle grooves.

[0018] Preferably, there are at least two sets of sliding blocks and sliding grooves. The sliding blocks are prism blocks that are adapted to slide in the sliding grooves, so that multiple sets of sliding blocks can move up and down synchronously in the sliding grooves to ensure that the pressure plate moves horizontally.

[0019] Specifically, the mounting frame has a first long gear rotatably mounted inside, and multiple longitudinal grooves that slide and adapt to the sliding frame are opened inside the mounting frame. The sliding frame has a long groove on its side wall, and a rack that meshes and adapts to the first long gear is provided on one side of the inner wall of the long groove. The first long gear passes through the long groove, and a handle is provided at one end of the first long gear outside the mounting frame.

[0020] Preferably, by rotating the handle, the first long gear is driven to rotate, which in turn drives the sliding frame to move up and down in the longitudinal groove. Since the sliding frame, the telescopic shaft assembly, and the fixed frame are fixed as an integral structure and are fixedly connected to the fixed plate or the flip plate, when the sliding frame moves up and down in the longitudinal groove, the mounting frame can move up and down relative to the flip plate or the fixed plate, thereby achieving the effect of pressing or loosening the plate.

[0021] Specifically, the mounting bracket located at the handle is fixedly provided with a fixing ring, one end of the handle passes through the mounting bracket and extends outward, a toothed ring is provided on the outer side of the handle, a toothed sleeve is slidably provided between the toothed ring and the fixing ring, and meshing teeth are provided on both the inner and outer sides of the toothed sleeve, the inner side of the toothed ring and the inner side of the fixing ring;

[0022] Preferably, when the handle is rotated, the toothed sleeve can be slid out from between the toothed ring and the fixed ring, at which point the handle can be rotated and adjusted.

[0023] Specifically, the flip plate and the fixed plate are respectively provided with slide rails on the opposite side, the slider is slidably mounted on the slide rail, the slider is assembled and connected with the corresponding guide wheel, the two guide wheels are staggered front and back, the upper end of the guide wheel is vertically slidably mounted on the linkage frame through the moving block, and the outer two sides of the guide ring are rotatably connected to the end face of the linkage frame.

[0024] Preferably, the guide wheel can be used to guide the welding head and press the edge of the plate during the welding process to prevent the plate from warping. The welding head of the welding gun can be placed on the guide ring to push the guide ring to move and weld the weld. The guide ring can rotate to adapt to different welding angles of the welding head.

[0025] Specifically, a bottom groove is provided inside the linkage frame, and two slide bars are slidably provided in the two bottom grooves respectively. The two slide bars are respectively set up vertically. A second long gear is rotatably provided inside the linkage frame. The second long gear is rotatably set between the upper and lower slide bars and meshes with the slide bars. The upper part of the moving block is assembled and connected to the corresponding slide bar.

[0026] Preferably, the two moving blocks move synchronously on the linkage frame, which ensures that the guide ring on the linkage frame is always at the weld position, which is beneficial for welding.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] This invention features a fixed plate and a rotating plate that can be flipped around a pivot on a base plate. The pivot is driven to rotate by an angle adjustment mechanism, allowing the angle between the rotating plate and the fixed plate to be adjusted according to different workpiece connection methods. This enables the adaptation of plates with different angles without the need to manufacture special fixtures for each angle. At the same time, the ratchet and pawl work together to form a one-way lock, which can prevent the rotating plate from rotating in the opposite direction under its own weight, ensuring the stable positioning of the adjusted angle.

[0029] This invention provides support frames above the fixed plate and the flipping plate, and utilizes the cooperation of the hinge frame, telescopic shaft assembly, and sliding frame to ensure that the pressure plate maintains a vertical posture relative to the corresponding plate during the pressing process. In conjunction with multiple sets of sliding blocks and right-angle sliding grooves on the side of the pressure plate, the parallelism and stability of the pressure plate during its up and down movement can be guaranteed, avoiding situations such as offset of the clamping force application point and local suspension. This effectively stabilizes the misalignment and contact gap between the two plates, and reduces weld fluctuations and defects caused by poor bonding.

[0030] This invention features two sets of guide wheels that can move along a slide rail between a fixed plate and a flipping plate, with a linkage frame and a guide ring above them. This allows the welding head to be inserted into the guide ring for trajectory guidance. During welding, the welding head pushes the guide ring to move, while the guide wheels apply pressure to the edges of the weld, which can suppress warping and relative displacement caused by welding heat input and improve welding stability. Furthermore, through the rack and pinion mechanism and the second long gear synchronization mechanism within the linkage frame, the positions of the guide components on both sides can be automatically coordinated after the included angle is adjusted, ensuring that the guide ring is always kept near the weld, reducing the risk of manual alignment and interference. Attached Figure Description

[0031] Figure 1 This is a perspective view of the present invention.

[0032] Figure 2 This is a schematic diagram of the tilted state structure of the flip plate of the present invention.

[0033] Figure 3 This is a schematic diagram of the internal structure of the base plate of the present invention.

[0034] Figure 4 This is a schematic diagram of the side frame and sliding block separated in the present invention.

[0035] Figure 5 This is a schematic diagram of the angle adjustment mechanism of the present invention.

[0036] Figure 6 This is a schematic diagram showing the positions of the ratchet and pawl of the present invention.

[0037] Figure 7 This is a schematic diagram showing the positions of the adjusting shaft and the inner shaft of the present invention.

[0038] Figure 8 This is a schematic diagram of the assembly structure of the linkage frame and guide wheel of the present invention.

[0039] Figure 9 This is a schematic diagram of the internal structure of the linkage frame of the present invention.

[0040] Figure 10 This is a schematic diagram of the assembly of the pressure plate and support frame of the present invention.

[0041] Figure 11 This is a schematic diagram of the assembly of the mounting bracket and sliding bracket of the present invention.

[0042] Figure 12 This is a schematic diagram of the assembly of the handle and mounting bracket of the present invention.

[0043] In the diagram: 1. Base plate; 2. Pressure plate; 311. Flip plate; 312. Assembly slot; 313. Fixing plate; 314. Rotating shaft; 4. Support frame; 411. Mounting frame; 412. Fixing frame; 413. Hinge frame; 414. Telescopic shaft assembly; 415. Sliding frame; 511. Guide wheel; 512. Slider; 513. Linkage frame; 514. Guide ring; 611. Fixing block; 612. Ratchet; 613. Pawl; 614. Adjusting shaft; 615. Mounting slot; 616. First spring; 621. Inner groove; 622. Second spring; 6 23. First conductive disk; 624. Second conductive disk; 625. Side groove; 626. Inner shaft; 627. Side block; 631. First magnetic sheet; 632. Second magnetic sheet; 633. Conductive strip; 711. Side frame; 712. Slide groove; 713. Sliding block; 811. First long gear; 812. Longitudinal groove; 813. Long groove; 814. Rack; 815. Handle; 821. Fixing ring; 822. Gear ring; 823. Gear sleeve; 911. Slide rail; 912. Moving block; 913. Bottom groove; 914. Slide bar; 915. Second long gear. Detailed Implementation

[0044] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0045] like Figures 1 to 12 The laser welding apparatus shown includes a welding clamping mechanism, comprising a base plate 1 and a pressure plate 2, wherein the pressure plate 2 is detachably disposed above the base plate 1, and the base plate 1 and the pressure plate 2 are directly used to clamp the material to be welded. The apparatus also includes:

[0046] The flip plate 311 has an assembly groove 312 on one side of the upper part of the base plate 1. A fixing plate 313 is fixedly installed at one end of the assembly groove 312. The flip plate 311 is located inside the other end of the assembly groove 312. The upper side of the flip plate 311 is rotatably connected to the upper part of the fixing plate 313 through a rotating shaft 314. An angle adjustment mechanism is provided at the center of the side of the base plate 1. The rotating shaft 314 is driven to rotate through the angle adjustment mechanism.

[0047] Support frame 4, two sets of support frame 4 are respectively located above fixed plate 313 and flip plate 311, and the end face of support frame 4 is assembled and connected to pressure plate 2;

[0048] Guide wheels 511 are provided in two sets and are slidably mounted on the flip plate 311 and the fixed plate 313 respectively via sliders 512. Both guide wheels 511 are located between the flip plate 311 and the fixed plate 313. A linkage frame 513 is slidably mounted above the two guide wheels 511. One end of the linkage frame 513 is provided with a guide ring 514.

[0049] The angle adjustment mechanism includes a fixed block 611, a ratchet 612, a pawl 613, and an adjustment shaft 614. The fixed block 611 is located at the center of one side of the base plate 1. One end of the adjustment shaft 614 passes through the fixed block 611 and is linked with the rotating shaft 314. The fixed block 611 has an installation groove 615. The ratchet 612 and the pawl 613 are located in the installation groove 615. The ratchet 612 is linked and sleeved on the outside of the adjustment shaft 614. The pawl 613 is rotatably located below the installation groove 615 and is adapted to the ratchet 612. One side of the pawl 613 is assembled and connected to the installation groove 615 through a first spring 616.

[0050] The adjustment shaft 614 is rotated, which drives the rotating shaft 314 and the ratchet 612 to rotate. When the ratchet 612 rotates in the forward direction, it can squeeze the pawl 613 to rotate towards the first spring 616. At this time, the pawl 613 will not affect the rotation of the ratchet 612. When it rotates in the reverse direction, the pawl 613 will prevent it from flipping and is used to fix the adjusted angle.

[0051] One end of the mounting groove 615 is connected to an inner groove 621. A first conductive disk 623 is provided in the inner groove 621 through a second spring 622. A second conductive disk 624 electrically connected to the first conductive disk 623 is provided at one end of the inner groove 621. A side groove 625 is provided on the side wall of the adjusting shaft 614 located in the inner groove 621.

[0052] An inner shaft 626 is slidably provided inside the adjusting shaft 614. One side wall of the inner shaft 626 is connected to the first conductive disk 623 by a side block 627. The side block 627 is slidably provided in the side groove 625. The other end of the inner shaft 626 is provided at the outer end of the adjusting shaft 614.

[0053] The mounting groove 615 has a first magnetic sheet 631 inside, and a second magnetic sheet 632 that is attracted to the first magnetic sheet 631 is provided on one side of the pawl 613. The fixing block 611 has a conductive strip 633 inside, and the two ends of the conductive strip 633 are electrically connected to the first magnetic sheet 631 and the second conductive disk 624 respectively. The inner shaft 626 has a battery inside, and the first conductive disk 623 is powered by the battery.

[0054] When it is necessary to rotate the shaft 314 in the reverse direction, the inner shaft 626 can be pushed into the adjusting shaft 614, the second spring 622 is compressed, causing the first conductive disk 623 and the second conductive disk 624 to be electrically connected, the second conductive disk 624 and the conductive strip 633 to be energized, the conductive strip 633 and the first magnetic piece 631 to be electrically connected, the second magnetic piece 632 generates magnetism and attracts the first magnetic piece 631, causing the pawl 613 to retract into the mounting groove 615 and not engage with the ratchet 612. At this time, the shaft 314 can rotate in the reverse direction.

[0055] In addition, after the rotating shaft 314 is at the appropriate angle, releasing the hand will cause the inner shaft 626 to lose its compression. The first spring 616 will push the first conductive disk 623 to separate from the second conductive disk 624 to achieve power cut-off. The pawl 613 will unfold and cooperate with the ratchet 612 to prevent the rotating shaft 314 from rotating in the opposite direction.

[0056] In addition, the support frame 4 includes a mounting frame 411, a fixing frame 412 and a hinge frame 413. The fixing frames 412 on the two sets of support frames 4 are respectively vertically arranged on the flip plate 311 and the fixing plate 313. The fixing frame 412 is hinged to the mounting frame 411 through the hinge frame 413. The end face of the mounting frame 411 is perpendicular to the pressure plate 2. One side of the fixing frame 412 is perpendicular to the mounting frame 411 through the telescopic shaft group 414. The end face of the telescopic shaft group 414 is slidably connected to the mounting frame 411 through the sliding frame 415.

[0057] By setting the fixed frame 412 perpendicular to each other, the telescopic shaft assembly 414 and the mounting frame 411 can ensure that the mounting frame 411 and the fixed frame 412 are always parallel, so that the pressure plate 2 can always be perpendicular to the flip plate 311 or the fixed plate 313.

[0058] When the mounting bracket 411 moves up and down, the end face of the telescopic shaft assembly 414 can slide up and down with the mounting bracket 411.

[0059] The fixed plate 313 and the flip plate 311 are respectively provided with side frames 711 on one side. The side frame 711 facing the pressure plate 2 is provided with a sliding groove 712. The side of the pressure plate 2 is slidably connected to the sliding groove 712 through the sliding block 713. The pressure plate 2 is perpendicular to the side frame 711. The sliding groove 712 is a right-angle groove.

[0060] The combination of sliding block 713 and slide groove 712 is provided in at least two sets. The sliding block 713 is a prism block that is adapted to slide groove 712, so that multiple sets of sliding blocks 713 can move up and down synchronously in slide groove 712, ensuring that the pressure plate 2 is horizontal when it moves, and making the pressure of the pressure plate 2 on the board more uniform.

[0061] In addition, a first long gear 811 is rotatably provided inside the mounting bracket 411, and multiple longitudinal grooves 812 are opened inside the mounting bracket 411 to slide and adapt to the sliding bracket 415. A long groove 813 is opened on the side wall of the sliding bracket 415, and a rack 814 that meshes and adapts to the first long gear 811 is provided on one side of the inner wall of the long groove 813. The first long gear 811 passes through the long groove 813, and a handle 815 is provided at one end of the first long gear 811 outside the mounting bracket 411.

[0062] Specifically, by rotating the handle 815, the first long gear 811 is driven to rotate, which in turn drives the sliding frame 415 to move up and down in the longitudinal groove 812. Since the sliding frame 415, the telescopic shaft assembly 414, and the fixed frame 412 are a fixed integrated structure, and are fixedly connected to the fixed plate 313 or the flip plate 311, when the sliding frame 415 moves up and down in the longitudinal groove 812, the mounting frame 411 can move up and down relative to the flip plate 311 or the fixed plate 313, thereby achieving the effect of pressing or loosening the plate.

[0063] In addition, a fixing ring 821 is fixedly provided on the mounting bracket 411 located at the handle 815. One end of the handle 815 passes through the mounting bracket 411 and extends outward. A toothed ring 822 is provided on the outer side of the handle 815. A toothed sleeve 823 is slidably provided between the toothed ring 822 and the fixing ring 821. Engaging teeth are provided on both the inner and outer sides of the toothed sleeve 823, the inner side of the toothed ring 822, and the inner side of the fixing ring 821.

[0064] When the handle 815 is rotated, the toothed sleeve 823 is slid out from between the toothed ring 822 and the fixed ring 821. At this time, the handle 815 can be rotated and adjusted. After adjustment, the toothed sleeve 823 is slidably installed. At this time, the toothed sleeve 823 is engaged with the toothed ring 822 and the fixed ring 821 respectively. The fixed ring 821 is fixedly connected to the mounting bracket 411, which can prevent the handle 815 from rotating freely.

[0065] In addition, slide rails 911 are provided on the upper side of the flip plate 311 and the fixed plate 313 respectively. The slider 512 is slidably mounted on the slide rail 911. The slider 512 is assembled and connected with the corresponding guide wheel 511. The two guide wheels 511 are staggered front and back. The upper end of the guide wheel 511 is vertically slidably mounted on the linkage frame 513 through the moving block 912. The outer sides of the guide ring 514 are rotatably connected to the end face of the linkage frame 513.

[0066] The guide wheel 511 can be used to guide the welding head and press the edge of the plate during the welding process to prevent the plate from warping. The welding head of the welding gun can be placed on the guide ring 514 to push the guide ring 514 to move and weld the weld. The guide ring 514 can rotate to adapt to different welding angles of the welding head.

[0067] The lower part of the linkage frame 513 has a bottom groove 913, and two slide bars 914 are slidably installed in the two bottom grooves 913 respectively. The two slide bars 914 are respectively set up vertically. The linkage frame 513 has a second long gear 915 rotatably installed inside the linkage frame 513. The second long gear 915 is rotatably set between the upper and lower slide bars 914 and meshes with the slide bars 914. The upper part of the moving block 912 is assembled and connected to the corresponding slide bar 914.

[0068] When the flip plate 311 flips and moves relative to the fixed plate 313, it pushes the two slide bars 914 closer to each other. Since the second long gear 915 meshes with the two slide bars 914 respectively, it can drive the two moving blocks 912 to move synchronously on the linkage frame 513, which can ensure that the guide ring 514 on the linkage frame 513 is always at the weld position, which is conducive to welding.

[0069] Working principle: Before welding, the flip plate 311 is pre-rotated around the rotating shaft 314 at a suitable angle. The included angle between the flip plate 311 and the fixed plate 313 is the included angle between the two plates to be welded. Specifically, by rotating the adjusting shaft 614 located at the outer end of the rotating shaft 314, the ratchet 612 and the rotating shaft 314 are driven to rotate. The cooperation between the pawl 613 and the ratchet 612 can prevent the rotating shaft 314 from rotating in the opposite direction under the gravity of the flip plate 311, thus achieving stable limiting of the adjusted angle. Then, the two plates to be welded are placed on the flip plate 311 and the fixed plate 313 respectively, with the sides of the two plates to be welded facing each other and adjusted to be close, thereby pushing the pressure plate 2 to squeeze the plates. The side of the pressure plate 2 moves along the slide groove 712 until it is perpendicular to the plate, squeezing the plate. Rotating the first long gear 811 causes the sliding frame 415 located in the mounting frame 411 to move upward, causing the mounting frame 411 and the pressure plate 2 to move downward, achieving the effect of pressing the plate. Then, the guide wheel 511 is slid to one end of the plate weld, the welding equipment is started, and the welding head is inserted into the guide ring 514. At this time, the welding end of the welding head is just aligned with the weld. As the welding head moves to weld, it pushes the guide wheel 511 to slide relative to the plate. This not only ensures the stability during welding, but also the pressure of the guide wheel 511 on the edge of the plate can effectively prevent the plate from warping during welding. After welding, the pressure plate 2 is moved upward, causing the plate to separate from the pressure plate 2 and the fixed plate 313 or the flipping plate 311. The welded workpiece can then be slid out from one side of the base plate 1.

[0070] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A welding clamping mechanism for a laser welding apparatus, comprising a base plate (1) and a pressure plate (2), wherein the pressure plate (2) is detachably disposed above the base plate (1), and the base plate (1) and the pressure plate (2) are directly used to clamp the plate to be welded, characterized in that, Also includes: A flip plate (311) is provided with an assembly groove (312) on one side above the base plate (1). A fixing plate (313) is fixedly provided at one end of the assembly groove (312). The flip plate (311) is located inside the other end of the assembly groove (312). The upper side of the flip plate (311) is rotatably connected to the upper side of the fixing plate (313) through a rotating shaft (314). An angle adjustment mechanism is provided at the center of the side of the base plate (1). The rotating shaft (314) is driven to rotate through the angle adjustment mechanism. The support frame (4) has two sets and is located above the fixed plate (313) and the flip plate (311) respectively. The end face of the support frame (4) is assembled and connected to the pressure plate (2). Guide wheels (511) are provided in two sets and are slidably disposed on the flip plate (311) and the fixed plate (313) respectively by sliders (512). The two guide wheels (511) are located between the flip plate (311) and the fixed plate (313). A linkage frame (513) is slidably disposed above the two guide wheels (511). A guide ring (514) is provided at one end of the linkage frame (513). The support frame (4) includes a mounting frame (411), a fixing frame (412), and a hinge frame (413). The fixing frames (412) on the two sets of support frames (4) are respectively vertically arranged on the flip plate (311) and the fixing plate (313). The fixing frame (412) is hinged to the mounting frame (411) through the hinge frame (413). The end face of the mounting frame (411) is perpendicular to the pressure plate (2). One side of the fixing frame (412) is perpendicular to the mounting frame (411) through the telescopic shaft group (414). The end face of the telescopic shaft group (414) is slidably connected to the mounting frame (411) through the sliding frame (415). The fixed plate (313) and the flip plate (311) are respectively provided with side frames (711) on one side. The side frame (711) facing the pressure plate (2) is provided with a sliding groove (712). The side of the pressure plate (2) is slidably connected to the sliding groove (712) through the sliding block (713). The pressure plate (2) is set perpendicular to the side frame (711). The sliding groove (712) is a right-angle groove. The flip plate (311) and the fixed plate (313) are respectively provided with slide rails (911) on the opposite side. The slider (512) is slidably disposed on the slide rail (911). The slider (512) is assembled and connected with the corresponding guide wheel (511). The two guide wheels (511) are staggered front and back. The upper end of the guide wheel (511) is vertically slidably disposed on the linkage frame (513) through the moving block (912). The outer sides of the guide ring (514) are rotatably connected to the end face of the linkage frame (513). The linkage frame (513) has a bottom groove (913) at the bottom inside. Slide rails (914) are slidably arranged inside the two bottom grooves (913). The two slide rails (914) are arranged vertically. A second long gear (915) is rotatably arranged inside the linkage frame (513). The second long gear (915) is rotatably arranged between the upper and lower slide rails (914) and meshes with the slide rails (914). The moving block (912) is assembled and connected to the corresponding slide rail (914) above.

2. The welding clamping mechanism for a laser welding apparatus according to claim 1, characterized in that: The angle adjustment mechanism includes a fixed block (611), a ratchet (612), a pawl (613), and an adjustment shaft (614). The fixed block (611) is located at the center of one side of the base plate (1). One end of the adjustment shaft (614) passes through the fixed block (611) and is linked with the rotating shaft (314). The fixed block (611) has an installation groove (615). The ratchet (612) and the pawl (613) are located in the installation groove (615). The ratchet (612) is linked and sleeved on the outside of the adjustment shaft (614). The pawl (613) is rotatably arranged below the installation groove (615) and is adapted to the ratchet (612). One side of the pawl (613) is assembled and connected to the installation groove (615) through a first spring (616).

3. The welding clamping mechanism for a laser welding apparatus according to claim 2, characterized in that: One end of the mounting groove (615) is connected to an inner groove (621). A first conductive disk (623) is provided in the inner groove (621) via a second spring (622). A second conductive disk (624) electrically connected to the first conductive disk (623) is provided at one end of the inner groove (621). A side groove (625) is provided on the side wall of the adjusting shaft (614) located in the inner groove (621). An inner shaft (626) is slidably provided inside the adjusting shaft (614). One end of the side wall of the inner shaft (626) is assembled and connected to the first conductive disk (623) via a side block (627). The side block (627) is slidably provided in the side groove (625). The other end of the inner shaft (626) is provided at the outer end of the adjusting shaft (614).

4. The welding clamping mechanism for a laser welding apparatus according to claim 3, characterized in that: The mounting groove (615) is provided with a first magnetic sheet (631) inside, and a second magnetic sheet (632) is provided on one side of the pawl (613) and is attracted to the first magnetic sheet (631). The fixing block (611) is provided with a conductive strip (633) inside, and the two ends of the conductive strip (633) are electrically connected to the first magnetic sheet (631) and the second conductive disk (624) respectively. The inner shaft (626) is provided with a battery, and the first conductive disk (623) is powered by the battery.

5. The welding clamping mechanism for a laser welding apparatus according to claim 4, characterized in that: The mounting bracket (411) is rotatably provided with a first long gear (811). The mounting bracket (411) is provided with a plurality of longitudinal grooves (812) that are slidably adapted to the sliding bracket (415). The sliding bracket (415) is provided with a long groove (813) on its side wall. A rack (814) that meshes with the first long gear (811) is provided on one side of the inner wall of the long groove (813). The first long gear (811) passes through the long groove (813). The first long gear (811) is provided with a handle (815) at one end outside the mounting bracket (411).

6. The welding clamping mechanism for a laser welding apparatus according to claim 5, characterized in that: The mounting bracket (411) located at the handle (815) is fixedly provided with a fixing ring (821). One end of the handle (815) passes through the mounting bracket (411) and extends outward. A toothed ring (822) is provided on the outer side of the handle (815). A toothed sleeve (823) is slidably provided between the toothed ring (822) and the fixing ring (821). Engaging teeth are provided on both the inner and outer sides of the toothed sleeve (823), the inner side of the toothed ring (822), and the inner side of the fixing ring (821).

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