A low-temperature resistant marine flat steel welding device

Abstract

This invention discloses a low-temperature resistant marine flat steel welding device, relating to the field of laser welding technology. The device includes a machine tool with a laser welding mechanism on its surface, a processing frame fixedly mounted on the top of the machine tool, a motor fixedly mounted on the top of the machine tool, and a conveying mechanism on the surface of the machine tool. The positioning device includes a rotating shaft, a centering plate, a connecting rod, a buffer plate, a toothed plate, a fixed frame, gears, a first fixed shaft, a second fixed shaft, a limiting plate, a connecting shaft, an L-shaped plate, and an inclined plate. The low-temperature resistant marine flat steel welding device uses the rotating shaft to move the centering plate, which in turn moves the buffer plate. The buffer plate contacts and presses the flat steel towards the center, achieving positioning and keeping the flat steel in the center of the conveying mechanism. This prevents the flat steel from being tilted during welding, thus avoiding any impact on the accuracy of the welding process.

Description

Technical Field

[0001] This invention relates to the field of laser welding technology, specifically to a low-temperature resistant marine flat steel welding device. Background Technology

[0002] Low-temperature resistant marine flat steel welding equipment is mainly used in the shipbuilding and repair process for welding flat steel materials for ships used in low-temperature environments.

[0003] Patent publication number CN207914810U relates to a low-temperature resistant marine flat steel welding device. When the laser welding head welds the flat steel, the flying metal residue is blocked by the protective cover and falls onto the operating table. When the external power supply is turned on, the motor starts working and drives the first pulley to rotate. The first pulley drives the second and third pulleys to rotate via a belt. The second pulley drives the spindle to rotate, causing the first baffle to continuously move the second baffle, making the protective cover rotate. This allows the condensate in the protective cover to flow. At the same time, the rotation of the third pulley drives the diaphragm and fan blades to rotate. The rotation of the diaphragm accelerates the flow of condensate, which is carried away by the heat sink through the heat dissipation rod. The rotation of the fan blades can cool the laser welding head. The protective cover protects the laser welding head and also prevents metal residue from splashing and causing safety hazards.

[0004] In the aforementioned patent, a protective cover is used to protect the laser welding head and prevent metal residue from splashing and causing safety hazards. However, during the welding process, the flat steel may vibrate or shake, which may cause the flat steel to be in a tilted state and thus affect the accuracy of the welding process, thereby affecting the effect of laser welding. To address this, a low-temperature resistant marine flat steel welding device has been designed. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a low-temperature resistant marine flat steel welding device, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a low-temperature resistant marine flat steel welding device, comprising a machine tool and a positioning device, wherein a laser welding mechanism is provided on the surface of the machine tool, a processing frame is fixedly installed on the top of the machine tool, a motor is fixedly installed on the top of the machine tool, and a conveying mechanism is provided on the surface of the machine tool; the positioning device comprises a rotating shaft, a centering plate, a connecting rod, a buffer plate, a toothed plate, a fixed frame, a gear, a first fixed shaft, a second fixed shaft, a limiting plate, a connecting shaft, an L-shaped plate, and an inclined plate; the rotating shaft is fixedly installed at the output end of the motor; the centering plate is slidably installed on the circumferential surface of the rotating shaft; the connecting rod slidably penetrates the surface of the centering plate; and the buffer plate is fixedly installed... At the end of the connecting rod furthest from the motor, the toothed plate is fixedly installed at the end of the connecting rod furthest from the buffer plate. The fixing frame is fixedly installed on the surface of the centering plate. The gear is rotatably installed on the circumferential surface of the fixing frame. The first fixing shaft is fixedly installed on the surface of the centering plate. The second fixing shaft is also fixedly installed on the surface of the centering plate. The limiting plate is rotatably installed at the end of the first fixing shaft furthest from the centering plate. The connecting shaft is fixedly installed on the surface of the limiting plate. The L-shaped plate is fixedly installed on the surface of the limiting plate. The inclined plate is fixedly installed on the inner wall of the processing frame to achieve the positioning effect, so that the flat steel is always kept in the middle of the conveying mechanism, avoiding the flat steel being in an inclined state during the welding process, which would affect the accuracy of the welding process.

[0007] According to the above technical solution, a fixed box is fixedly installed on the inner wall of the processing frame, a sliding plate is slidably installed on the inner wall of the fixed box, a roller is rotatably inserted through the surface of the sliding plate, a connecting block one is fixedly installed on the surface of the sliding plate, a connecting rod is rotatably installed at the end of the connecting block one away from the sliding plate, and a connecting block two is fixedly installed on the inner wall of the processing frame to fix its movement trajectory. Moreover, the spring set inside the sliding plate can achieve an adaptive effect for flat steel of different sizes.

[0008] According to the above technical solution, the surface of the rotating shaft is provided with a reciprocating threaded groove, the centering plate is connected to the rotating shaft by a thread, a spring is provided between the centering plate and the buffer plate, a torsion spring is provided between the fixed shaft and the connecting shaft, the end of the connecting block away from the inner wall of the processing frame is rotatably connected to the connecting rod, a spring is provided between the fixed box and the sliding plate, the gear meshes with the gear plate, the end of the L-shaped plate away from the fixed shaft is set as the inclined surface, the end of the inclined plate away from the processing frame is set as the inclined surface, and a conveyor belt is connected between the rotating shaft and the conveying mechanism to prevent the flat steel from vibrating or shaking during laser welding, which would affect the laser welding effect and thus improve the quality of the finished product after welding and the stability of the welding process.

[0009] According to the above technical solution, the device includes a cleaning device and a trimming device. The cleaning device includes a fixed plate, a cleaning plate, an adapting plate, a cleaning cylinder, an eccentric wheel one, a fixed block, a rotating rod, an eccentric wheel two, and a striking rod. The fixed plate is fixedly installed on the surface of the sliding plate. The cleaning plate is fixedly installed at the end of the fixed plate away from the sliding plate. The adapting plate slides through the surface of the cleaning plate. The cleaning cylinder rotates through the surface of the adapting plate. The eccentric wheel one is fixedly installed on the circumferential surface of the cleaning cylinder. The fixed block is fixedly installed on the surface of the cleaning plate. The rotating rod rotates through the surface of the fixed block. The eccentric wheel two is fixedly installed on the circumferential surface of the rotating rod. The striking rod slides on the surface of the cleaning plate. Cleaning the surface of the flat steel helps to better focus the laser beam, improve welding accuracy, and avoid uneven or incomplete welding caused by surface impurities.

[0010] According to the above technical solution, a telescopic spring rod is fixedly installed on the top of the cleaning plate. The free end of the telescopic spring rod is fixedly connected to the striking rod. A conveyor belt is connected between the rotating rod and the cleaning cylinder. By cleaning these impurities, the laser beam is ensured to directly irradiate the target material, reducing reflection and scattering, thereby improving the stability and quality of welding.

[0011] According to the above technical solution, the end of the striking rod away from the cleaning plate is circular, a spring is provided between the cleaning plate and the adaptation plate, and the circumferential surface of the cleaning cylinder is provided with bristles to strike the surface of the flat steel in order to remove impurities and protrusions on its surface. Furthermore, the light tapping or vibration treatment can help release some of the internal stress in the plate, reduce possible deformation during the welding process, and ensure more precise welding lines.

[0012] According to the above technical solution, the trimming device includes an S-shaped plate, a scraper, a sliding plate, a second telescopic spring rod, a telescopic column, a sliding frame, a pressure plate, a third telescopic spring rod, a fixed rod, a sliding block, a pressure plate, and a buffer plate. The S-shaped plate is fixedly installed on the surface of the spring plate, the scraper is fixedly installed on the end of the S-shaped plate away from the spring plate, the sliding plate is slidably installed on the surface of the machine tool, the telescopic column is fixedly installed on the surface of the sliding plate, the sliding frame is fixedly installed on the top of the scraper, the pressure plate slides through the surface of the scraper, the third telescopic spring rod is fixedly installed on the surface of the pressure plate, the fixed rod is fixedly installed on the surface of the pressure plate, the sliding block slides on the surface of the sliding frame, the pressure plate is fixedly installed on the surface of the sliding block, and the buffer plate slides through the surface of the pressure plate. This scrapes off the burrs at both ends of the flat steel, ensuring that the edges of the welded sheet are neat and smooth, improving the appearance quality of the final product, and thus improving the overall processing effect.

[0013] According to the above technical solution, a telescopic spring rod four is fixedly installed on the surface of the scraper, and the free end of the telescopic spring rod four is fixedly connected to the pressure plate. A scraper blade is provided on the surface of the scraper. A telescopic spring rod two is fixedly installed on the surface of the processing frame, and the free end of the telescopic spring rod two is fixedly connected to the surface of the slide plate. The free end of the telescopic column is fixedly connected to the surface of the scraper, and the free end of the telescopic spring rod three is fixedly connected to the scraper. This avoids shaking or vibration during the trimming process of the flat steel, which would affect the trimming effect and lead to inadequate treatment of edge burrs. It also maintains the stability of the flat steel during the trimming process, thus enabling better edge treatment.

[0014] According to the above technical solution, the surface of the sliding block is provided with an inclined sliding groove, which is slidably connected to the circumferential surface of the fixed rod. The pressure plate is slidably installed on the inner wall of the sliding frame. The movement of the pressure plate causes the buffer plate to move downward, pressing the surface of the flat steel. At the same time, the buffer plate can adapt to the size of the flat steel by adjusting the springs on its surface.

[0015] This invention provides a low-temperature resistant welding device for marine flat steel. It has the following beneficial effects:

[0016] (1) The low-temperature resistant marine flat steel welding device drives the centering plate to move by rotating the shaft. The movement of the centering plate drives the soft plate to move. The soft plate contacts and squeezes the flat steel to move towards the center and achieves the effect of centering and positioning it for conveying. This keeps the flat steel in the middle of the conveying mechanism, avoiding the flat steel from being tilted during the welding process after the metal plate shifts, thus affecting the accuracy of the welding process.

[0017] (2) In this low-temperature resistant marine flat steel welding device, the connecting block moves under the action of the linkage rod and drives the sliding plate to move downward. The movement of the sliding plate drives the roller to move downward. At this time, the roller moves downward until it contacts the surface of the flat steel, thus fixing its movement trajectory. Furthermore, the spring set inside the sliding plate can achieve the effect of self-adaptation for flat steel of different sizes, avoiding vibration or shaking of the flat steel during laser welding, which would affect the effect of laser welding, thereby improving the quality of the finished product after welding and the stability of the welding process.

[0018] (3) The low-temperature resistant marine flat steel welding device moves the cleaning cylinder downwards until it contacts the surface of the flat steel by adapting the plate to move. At this time, the cleaning cylinder rotates under the action of the flat steel during the movement, which drives the brush to rotate and clean the surface of the flat steel. By cleaning these impurities, the laser beam can be better focused on the target material, reducing reflection and scattering, thereby improving the stability and quality of welding. The rotation of the cleaning cylinder drives the rotating rod to rotate.

[0019] (4) The low-temperature resistant marine flat steel welding device has a rotating rod that drives the second eccentric wheel to rotate. The second eccentric wheel rotates and contacts and squeezes the striking rod to move downward and strike the surface of the flat steel to generate vibration. This can help release some of the internal stress in the plate, reduce possible deformation during the welding process, and ensure more accurate welding lines.

[0020] (5) The low-temperature resistant marine flat steel welding device moves the S-shaped plate until it fits the surface of the flat steel when the spring plate moves to adapt to the size of the flat steel. At the same time, the S-shaped plate moves under the action of the eccentric wheel and drives the scraper to move. The scraper moves and drives the scraper blade to remove the burrs at both ends of the flat steel, ensuring that the edges of the welded plate are neat and smooth, improving the appearance quality of the final product, and thus improving the overall processing effect.

[0021] (6) The low-temperature resistant marine flat steel welding device has the effect of pressing the surface of the flat steel by moving the pressure plate and driving the buffer plate to move downward. At the same time, the buffer plate can adapt to the size of the flat steel by shrinking through the spring set on the surface, avoiding shaking or vibration during the trimming process of the flat steel, which would affect the trimming effect and lead to inadequate treatment of edge burrs. It also maintains the stability of the flat steel during the trimming process and performs better edge treatment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall internal structure of the present invention;

[0024] Figure 3 This is a schematic diagram showing the positional structure of the centering plate and the fixing box in this invention;

[0025] Figure 4 This is a schematic diagram showing the positional structure of the toothed plate and the toothed plate of the present invention;

[0026] Figure 5 This is a schematic diagram showing the positional structure of the fixing plate and the cleaning plate of the present invention;

[0027] Figure 6 This is a schematic diagram showing the positional structure of the eccentric wheel and the S-shaped plate of the present invention;

[0028] Figure 7 This is a schematic diagram of the positional structure of the pressure plate and the pressure plate of the present invention.

[0029] In the diagram: 1. Machine tool; 2. Laser welding mechanism; 3. Processing frame; 4. Motor; 5. Conveying mechanism; 61. Rotating shaft; 62. Centering plate; 63. Connecting rod; 64. Buffer plate; 65. Gear plate; 66. Fixing frame; 67. Gear; 68. Fixed shaft one; 69. Fixed shaft two; 610. Limiting plate; 611. Connecting shaft; 612. Torsion spring; 613. L-shaped plate; 614. Inclined plate; 615. Fixing box; 616. Sliding plate; 617. Roller; 618. Connecting block one; 619. Linkage rod; 620. 71. Connecting block 2; 72. Fixing plate; 73. Cleaning plate; 74. Adapting plate; 75. Cleaning cylinder; 76. Eccentric wheel 1; 77. Fixing block; 78. Rotating rod; 79. Eccentric wheel 2; 70. Striking rod; 710. Telescopic spring rod 1; 81. S-shaped plate; 82. Scraper; 83. Slide plate; 84. Telescopic spring rod 2; 85. Telescopic column; 86. Sliding frame; 87. Pressure plate; 88. Telescopic spring rod 3; 89. Fixing rod; 810. Sliding block; 811. Pressure plate; 812. Buffer plate; 813. Telescopic spring rod 4. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1-7One embodiment of the present invention is: a low-temperature resistant marine flat steel welding device, including a machine tool 1, including a positioning device, a laser welding mechanism 2 is provided on the surface of the machine tool 1, a processing frame 3 is fixedly installed on the top of the machine tool 1, a motor 4 is fixedly installed on the top of the machine tool 1, a conveying mechanism 5 is provided on the surface of the machine tool 1, and the positioning device includes a rotating shaft 61, a centering plate 62, a connecting rod 63, a spring plate 64, a toothed plate 65, a fixing frame 66, a gear 67, a first fixing shaft 68, a second fixing shaft 69, a limiting plate 610, a connecting shaft 611, an L-shaped plate 613, and an inclined plate 614. The rotating shaft 61 is fixedly installed at the output end of the motor 4, the centering plate 62 is slidably installed on the circumferential surface of the rotating shaft 61, the connecting rod 63 slides through the surface of the centering plate 62, and the spring plate 64 is fixedly installed on the surface of the rotating shaft 61. A toothed plate 65 is fixedly installed on the end of the connecting rod 63 away from the motor 4. A fixed frame 66 is fixedly installed on the surface of the centering plate 62. A gear 67 is rotatably installed on the circumferential surface of the fixed frame 66. A first fixed shaft 68 is fixedly installed on the surface of the centering plate 62. A second fixed shaft 69 is fixedly installed on the surface of the centering plate 62. A limiting plate 610 is rotatably installed on the end of the first fixed shaft 68 away from the centering plate 62. A connecting shaft 611 is fixedly installed on the surface of the limiting plate 610. An L-shaped plate 613 is fixedly installed on the surface of the limiting plate 610. An inclined plate 614 is fixedly installed on the inner wall of the processing frame 3. The L-shaped plate 613 moves to contact and press the inclined plate 614. Under the action of the inclined plate 614, the L-shaped plate 613 rotates around the first fixed shaft 68 as the center.

[0032] A fixed box 615 is fixedly installed on the inner wall of the processing rack 3. A sliding plate 616 is slidably installed on the inner wall of the fixed box 615. A roller 617 rotatably passes through the surface of the sliding plate 616. A connecting block 618 is fixedly installed on the surface of the sliding plate 616. A connecting rod 619 is rotatably installed at the end of the connecting block 618 away from the sliding plate 616. A connecting block 620 is fixedly installed on the inner wall of the processing rack 3. When the center plate 62 moves toward the fixed box 615, it drives the connecting block 620 to move. The movement of the connecting block 620 drives the connecting rod 619 to rotate.

[0033] The surface of the rotating shaft 61 is provided with a reciprocating threaded groove. The centering plate 62 is connected to the rotating shaft 61 by a thread. A spring is provided between the centering plate 62 and the buffer plate 64. A torsion spring 612 is provided between the fixed shaft 69 and the connecting shaft 611. The end of the connecting block 620 away from the inner wall of the processing frame 3 is rotatably connected to the connecting rod 619. A spring is provided between the fixed box 615 and the sliding plate 616. The gear 67 meshes with the toothed plate 65. The end of the L-shaped plate 613 away from the fixed shaft 68 is set as the first inclined surface. The end of the inclined plate 614 away from the processing frame 3 is set as the second inclined surface. A conveyor belt is connected between the rotating shaft 61 and the conveying mechanism 5. The rotation of the rotating shaft 61 drives the centering plate 62 to move. The movement of the centering plate 62 drives the buffer plate 64 to move.

[0034] In this embodiment, during operation: the worker places the flat steel on the surface of the conveying mechanism 5, starts the motor 4, and the output end of the motor 4 rotates, driving the conveying mechanism 5 to run. At this time, the operation of the conveying mechanism 5 drives the flat steel to move closer to the processing frame 3. Simultaneously, the rotation of the output end of the motor 4 drives the rotating shaft 61 to rotate. Since the rotating shaft 61 is connected to the centering plate 62 by a thread, the rotation of the rotating shaft 61 drives the centering plate 62 to move. The movement of the centering plate 62 drives the buffer plate 64 to move. The buffer plate 64 moves to contact and squeeze the flat steel to move towards the center, achieving the effect of positioning it, so that the flat steel is always kept in the center of the conveying mechanism 5. To prevent the flat steel from being tilted during welding, which would affect the accuracy of the welding process, the movement of the buffer plate 64 drives the connecting rod 63 to move, which in turn drives the toothed plate 65 to move. Since the toothed plate 65 meshes with the gear 67, it moves away from the buffer plate 64 under the action of the connecting rod 63. The movement of the toothed plate 65 drives the gear 67 to rotate counterclockwise. At the same time, the torsion spring 612 pulls the limiting plate 610 through the connecting shaft 611 to keep it in contact with the surface of the gear 67, thus limiting the counterclockwise rotation of the gear 67. The movement of the L-shaped plate 613 towards the processing frame 3 causes it to move. At this point, the L-shaped plate 613 contacts and presses against the inclined plate 614. Under the action of the inclined plate 614, the L-shaped plate 613 rotates around the fixed shaft 68, releasing the restriction on the gear 67, allowing the gear plate 65 to move. Simultaneously, the center plate 62 moves towards the fixed box 615, causing the connecting block 620 to move. The movement of the connecting block 620 causes the connecting rod 619 to rotate. Simultaneously, the rotation of the connecting rod 619 causes the connecting block 618 to move downwards. At this point, the connecting block 618 moves under the action of the connecting rod 619, thus driving... The sliding plate 616 moves downward, which drives the roller 617 to move downward. At this time, the roller 617 moves downward until it contacts the surface of the flat steel, thus fixing its movement trajectory. The spring inside the sliding plate 616 can achieve an adaptive effect for flat steel of different sizes, avoiding vibration or shaking of the flat steel during laser welding, which would affect the laser welding effect. This improves the quality of the finished product after welding and the stability of the welding process. Then the flat steel moves until it reaches the welding processing area, where the laser welding mechanism 2 welds the flat steel.

[0035] Please see Figures 1-7Based on the above embodiments, another embodiment of the present invention includes a cleaning device and a trimming device. The cleaning device includes a fixed plate 71, a cleaning plate 72, an adapting plate 73, a cleaning cylinder 74, an eccentric wheel 75, a fixed block 76, a rotating rod 77, an eccentric wheel 78, and a striking rod 79. The fixed plate 71 is fixedly installed on the surface of the sliding plate 616. The cleaning plate 72 is fixedly installed on the end of the fixed plate 71 away from the sliding plate 616. The adapting plate 73 slides through the surface of the cleaning plate 72. The cleaning cylinder 74 rotates through the surface of the adapting plate 73. The eccentric wheel 75 is fixedly installed on the circumferential surface of the cleaning cylinder 74. The fixed block 76 is fixedly installed on the surface of the cleaning plate 72. The rotating rod 77 rotates through the surface of the fixed block 76. The eccentric wheel 78 is fixedly installed on the circumferential surface of the rotating rod 77. The striking rod 79 is slidably installed on the surface of the cleaning plate 72. The rotating rod 77 rotates, causing the eccentric wheel 78 to rotate. The eccentric wheel 78 rotates, contacts and presses the striking rod 79, and moves downward to strike the surface of the flat steel.

[0036] A telescopic spring rod 710 is fixedly installed on the top of the cleaning plate 72. The free end of the telescopic spring rod 710 is fixedly connected to the striking rod 79. A conveyor belt 2 is connected between the rotating rod 77 and the cleaning cylinder 74. At the same time, the rotation of the cleaning cylinder 74 drives the rotating rod 77 to rotate, and the rotation of the rotating rod 77 drives the eccentric wheel 78 to rotate.

[0037] The end of the striking rod 79 away from the cleaning plate 72 is round. A spring is provided between the cleaning plate 72 and the adaptation plate 73. The circumferential surface of the cleaning cylinder 74 is provided with bristles. During the movement, the cleaning cylinder 74 rotates under the action of the flat steel, which drives the bristles to rotate.

[0038] The trimming device includes an S-shaped plate 81, a scraper 82, a sliding plate 83, a telescopic spring rod 84, a telescopic column 85, a sliding frame 86, a pressure plate 87, a telescopic spring rod 88, a fixed rod 89, a sliding block 810, a pressure plate 811, and a buffer plate 812. The S-shaped plate 81 is fixedly installed on the surface of the buffer plate 64, the scraper 82 is fixedly installed on the end of the S-shaped plate 81 away from the buffer plate 64, the sliding plate 83 is slidably installed on the surface of the machine tool 1, the telescopic column 85 is fixedly installed on the surface of the sliding plate 83, and the sliding frame 86 is fixedly installed on the scraper 810. At the top of 2, pressure plate 87 slides through the surface of scraper 82, telescopic spring rod 88 is fixedly installed on the surface of pressure plate 87, fixed rod 89 is fixedly installed on the surface of pressure plate 87, sliding block 810 is slidably installed on the surface of sliding frame 86, pressure plate 811 is fixedly installed on the surface of sliding block 810, buffer plate 812 slides through the surface of pressure plate 811, sliding block 810 moves downward to drive pressure plate 811 to move, pressure plate 811 moves downward to drive buffer plate 812 to press the surface of flat steel.

[0039] A telescopic spring rod 813 is fixedly installed on the surface of the scraper 82. The free end of the telescopic spring rod 813 is fixedly connected to the pressure plate 811. A scraper blade is provided on the surface of the scraper 82. A telescopic spring rod 84 is fixedly installed on the surface of the processing frame 3. The free end of the telescopic spring rod 84 is fixedly connected to the surface of the slide plate 83. The free end of the telescopic column 85 is fixedly connected to the surface of the scraper 82. The free end of the telescopic spring rod 88 is fixedly connected to the scraper 82.

[0040] The surface of the sliding block 810 is provided with an inclined sliding groove, which is slidably connected to the circumferential surface of the fixed rod 89. The pressure plate 811 is slidably installed on the inner wall of the sliding frame 86. The movement of the pressure plate 811 causes the buffer plate 812 to move downward to press the surface of the flat steel. At the same time, the buffer plate 812 can adapt to the size of the flat steel by shrinking through the spring set on its surface.

[0041] In this embodiment, during operation: when the sliding plate 616 moves downward under the action of the connecting block 618, it drives the fixed plate 71 downward. Simultaneously, the movement of the fixed plate 71 drives the cleaning plate 72 downward, which in turn drives the adapting plate 73 downward. The adapting plate 73 then drives the cleaning cylinder 74 downward until it contacts the surface of the flat steel. During this movement, the cleaning cylinder 74 rotates under the action of the flat steel, causing the brush bristles to rotate and clean the surface of the flat steel. This helps to better focus the laser beam, improve welding accuracy, and avoid uneven or incomplete welding caused by surface impurities. By cleaning these impurities, it ensures that the laser beam directly irradiates the target material, reducing reflection and... Scattering improves welding stability and quality. Meanwhile, the adaptable plate 73 slides on the surface of the cleaning plate 72 to adapt to the size of the flat steel. At the same time, the cleaning cylinder 74 rotates, driving the rotating rod 77 to rotate. The rotating rod 77 then drives the eccentric wheel 78 to rotate. The eccentric wheel 78 rotates and contacts and presses the striking rod 79 downward to strike the surface of the flat steel to remove impurities and protrusions. The light tapping or vibration treatment can help release some of the internal stress in the plate, reduce possible deformation during welding, and ensure more precise weld lines. At this time, the telescopic spring rod 710 deforms and pushes the striking rod 79 to reset, realizing continuous tapping of the surface of the flat steel.

[0042] As the cleaning cylinder 74 moves, the flat steel causes the eccentric wheel 75 to rotate, simultaneously contacting and pressing the S-shaped plate 81 away from the processing frame 3. Meanwhile, the spring plate 64, adapting to the size of the flat steel, moves the S-shaped plate 81 until it adheres to the surface of the flat steel. Simultaneously, the S-shaped plate 81, under the action of the eccentric wheel 75, moves and drives the scraper 82, which in turn scrapes off the burrs at both ends of the flat steel, ensuring neat and smooth edges after welding, improving the final product's appearance quality, and thus enhancing the overall processing effect. Simultaneously, the scraper 82, under the action of the spring plate 64, moves closer to the flat steel, causing the pressure plate 87 to move. 87 moves until it contacts the surface of the flat steel. At this time, the pressure plate 87 moves away from the flat steel under the action of the flat steel. At the same time, the movement of the pressure plate 87 drives the fixed rod 89 to move. The fixed rod 89 moves to contact and squeeze, and drives the sliding block 810 to move downward. At the same time, the downward movement of the sliding block 810 drives the pressure plate 811 to move. The movement of the pressure plate 811 drives the buffer plate 812 to move downward, which has the effect of pressing the surface of the flat steel. Meanwhile, the buffer plate 812 can adapt to the size of the flat steel by shrinking through the spring set on its surface, so as to avoid shaking or vibration during the trimming process of the flat steel, which would affect the trimming effect and lead to inadequate treatment of edge burrs. It also maintains the stability of the flat steel during the trimming process and performs better edge treatment.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-temperature resistant marine flat steel welding device, comprising a machine tool (1), characterized in that: It also includes positioning devices, cleaning devices, and trimming devices; The machine tool (1) is provided with a laser welding mechanism (2) on its surface, a processing frame (3) is fixedly installed on the top of the machine tool (1), a motor (4) is fixedly installed on the top of the machine tool (1), and a conveying mechanism (5) is provided on the surface of the machine tool (1). The positioning device includes a rotating shaft (61), a centering plate (62), a connecting rod (63), a buffer plate (64), a toothed plate (65), a fixing frame (66), a gear (67), a first fixing shaft (68), a second fixing shaft (69), a limiting plate (610), a connecting shaft (611), an L-shaped plate (613), and an inclined plate (614). The rotating shaft (61) is fixedly installed at the output end of the motor (4). The centering plate (62) is slidably installed on the circumferential surface of the rotating shaft (61). The connecting rod (63) slides through the surface of the centering plate (62). The buffer plate (64) is fixedly installed at the end of the connecting rod (63) away from the motor (4). The toothed plate (65) is fixedly installed... The connecting rod (63) is mounted at one end away from the spring plate (64). The fixing frame (66) is fixedly mounted on the surface of the center plate (62). The gear (67) is rotatably mounted on the circumferential surface of the fixing frame (66). The first fixing shaft (68) is fixedly mounted on the surface of the center plate (62). The second fixing shaft (69) is mounted on the surface of the center plate (62). The limiting plate (610) is rotatably mounted at one end of the first fixing shaft (68) away from the center plate (62). The connecting shaft (611) is fixedly mounted on the surface of the limiting plate (610). The L-shaped plate (613) is fixedly mounted on the surface of the limiting plate (610). The inclined plate (614) is fixedly mounted on the inner wall of the processing frame (3). A fixed box (615) is fixedly installed on the inner wall of the processing rack (3). A sliding plate (616) is slidably installed on the inner wall of the fixed box (615). A roller (617) rotatably passes through the surface of the sliding plate (616). A connecting block one (618) is fixedly installed on the surface of the sliding plate (616). A connecting rod (619) is rotatably installed at the end of the connecting block one (618) away from the sliding plate (616). A connecting block two (620) is fixedly installed on the inner wall of the processing rack (3). The surface of the rotating shaft (61) is provided with a reciprocating thread groove. The center plate (62) is connected to the rotating shaft (61) by a thread. A spring is provided between the center plate (62) and the spring plate (64). A torsion spring (612) is provided between the fixed shaft (69) and the connecting shaft (611). The end of the connecting block (620) away from the inner wall of the processing frame (3) is rotatably connected to the connecting rod (619). A spring is provided between the fixed box (615) and the sliding plate (616). The gear (67) meshes with the toothed plate (65). The end of the L-shaped plate (613) away from the fixed shaft (68) is set as an inclined surface. The end of the inclined plate (614) away from the processing frame (3) is set as an inclined surface. A conveyor belt is connected between the rotating shaft (61) and the conveying mechanism (5).

2. The low-temperature resistant marine flat steel welding device according to claim 1, characterized in that: The cleaning device includes a fixed plate (71), a cleaning plate (72), an adapting plate (73), a cleaning cylinder (74), an eccentric wheel (75), a fixed block (76), a rotating rod (77), an eccentric wheel (78), and a striking rod (79). The fixed plate (71) is fixedly installed on the surface of the sliding plate (616). The cleaning plate (72) is fixedly installed at the end of the fixed plate (71) away from the sliding plate (616). The adapting plate (73) slides through the surface of the cleaning plate (72). The cleaning cylinder (74) rotates through the surface of the adapting plate (73). The eccentric wheel (75) is fixedly installed on the circumferential surface of the cleaning cylinder (74). The fixed block (76) is fixedly installed on the surface of the cleaning plate (72). The rotating rod (77) rotates through the surface of the fixed block (76). The eccentric wheel (78) is fixedly installed on the circumferential surface of the rotating rod (77). The striking rod (79) slides on the surface of the cleaning plate (72). The top of the cleaning plate (72) is fixedly installed with a telescopic spring rod (710), the free end of the telescopic spring rod (710) is fixedly connected to the striking rod (79), and the rotating rod (77) is connected to the cleaning cylinder (74) by a conveyor belt. The end of the striking rod (79) away from the cleaning plate (72) is round, a spring is provided between the cleaning plate (72) and the adaptation plate (73), and bristles are provided on the circumferential surface of the cleaning cylinder (74).

3. The low-temperature resistant marine flat steel welding device according to claim 2, characterized in that: The trimming device includes an S-shaped plate (81), a scraper (82), a sliding plate (83), a telescopic column (85), a sliding frame (86), a pressure plate (87), a telescopic spring rod (88), a fixed rod (89), a sliding block (810), a pressure plate (811), and a buffer plate (812). The S-shaped plate (81) is fixedly installed on the surface of the spring plate (64). The scraper (82) is fixedly installed on the end of the S-shaped plate (81) away from the spring plate (64). The sliding plate (83) is slidably installed on the surface of the machine tool (1). The telescopic column (85) is fixedly installed on the surface of the machine tool (1). Installed on the surface of the slide plate (83), the sliding frame (86) is fixedly installed on the top of the scraper (82), the pressure plate (87) slides through the surface of the scraper (82), the telescopic spring rod three (88) is fixedly installed on the surface of the pressure plate (87), the fixing rod (89) is fixedly installed on the surface of the pressure plate (87), the sliding block (810) slides on the surface of the sliding frame (86), the pressure plate (811) is fixedly installed on the surface of the sliding block (810), and the buffer plate (812) slides through the surface of the pressure plate (811). The surface of the scraper (82) is fixedly installed with a telescopic spring rod four (813), the free end of the telescopic spring rod four (813) is fixedly connected to the pressure plate (811), the surface of the scraper (82) is provided with a scraper blade, the telescopic spring rod two (84) is fixedly installed on the surface of the processing frame (3), the free end of the telescopic spring rod two (84) is fixedly connected to the surface of the slide plate (83), the free end of the telescopic column (85) is fixedly connected to the surface of the scraper (82), and the free end of the telescopic spring rod three (88) is fixedly connected to the scraper (82); The surface of the sliding block (810) is provided with an inclined sliding groove, which is slidably connected to the circumferential surface of the fixed rod (89), and the pressure plate (811) is slidably installed on the inner wall of the sliding frame (86).

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