Low-temperature-resistant marine flat steel welding device

Abstract

The invention discloses a low-temperature-resistant marine flat steel welding device, and relates to the technical field of laser welding, the low-temperature-resistant marine flat steel welding device comprises a machine tool, a laser welding mechanism is arranged on the surface of the machine tool, a machining frame is fixedly mounted at the top of the machine tool, and a motor is fixedly mounted at the top of the machine tool; a conveying mechanism is arranged on the surface of the machine tool, the positioning device comprises a rotating shaft, a centering plate, a connecting rod, a slow elastic plate, a toothed plate, a fixing frame, a gear, a first fixing shaft, a second fixing shaft, a limiting plate, a connecting shaft, an L-shaped plate and an inclined plate, the rotating shaft rotates to drive the centering plate to move, and the centering plate moves to drive the slow elastic plate to move; and the slow elastic plate moves to make contact with and extrude the flat steel to move towards the middle and achieve the effect of positioning the flat steel, so that the flat steel is always kept in the middle of the conveying mechanism, and the situation that the flat steel is in an inclined state in the welding process and consequently the welding accuracy is affected is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding, in particular to a low-temperature resistant ship flat steel welding device. Background Art

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

[0003] The patent with patent announcement number CN207914810U relates to a low-temperature resistant ship flat steel welding device. When the laser welding head welds the flat steel, the metal residues flying around are blocked by the protective cover and fall onto the operating table. The external power supply is started, the motor starts working and drives the first pulley to rotate. The first pulley drives the second pulley and the third pulley to rotate through the belt. The second pulley drives the core shaft to rotate so that the first baffle continuously moves the second baffle to rotate the protective cover, so that the condensate in the protective cover can flow. At the same time, the rotation of the third pulley drives the paddle and the fan blade to rotate. The rotation of the paddle accelerates the flow of condensate and takes away the heat inside the protective cover through the heat sink. At the same time, the rotation of the fan blade can cool the laser welding head, and the laser welding head is protected by the protective cover. At the same time, it can also prevent the metal residue from splashing and causing safety hazards.

[0004] In the above patent, the laser welding head is protected by a protective cover, which can also prevent metal residues from splashing and causing safety hazards. However, during the welding process, the flat steel may vibrate or shake, thereby preventing the flat steel from being in a tilted state and affecting the accuracy of the welding process, thereby affecting the effect of laser welding. For this reason, a low-temperature resistant shipbuilding flat steel welding device is designed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a low-temperature resistant ship flat steel welding device, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a low-temperature resistant ship flat steel welding device, including a machine tool, including a positioning device, the surface of the machine tool is provided with a laser welding mechanism, the top of the machine tool is fixedly installed with a processing frame, the top of the machine tool is fixedly installed with a motor, the surface of the machine tool is provided with a conveying mechanism, the positioning device includes a rotating shaft, a centering plate, a connecting rod, a buffer plate, a tooth plate, a fixed frame, a gear, a fixed shaft one, a fixed shaft two, a limit 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 slides through the surface of the centering plate, and the buffer plate is fixedly installed At the end of the connecting rod away from the motor, the tooth plate is fixedly installed on the end of the connecting rod away from the buffer plate, the fixing frame is fixedly installed on the surface of the center plate, the gear is rotatably installed on the circumferential surface of the fixing frame, the fixed shaft one is fixedly installed on the surface of the center plate, the fixed shaft two is on the surface of the center plate, the limit plate is rotatably installed on the end of the fixed shaft one away from the center plate, the connecting shaft is fixedly installed on the surface of the limit plate, the L-shaped plate is fixedly installed on the surface of the limit plate, and the inclined plate is fixedly installed on the inner wall of the processing frame to achieve the effect of positioning it, so that the flat steel is always kept in the middle of the conveying mechanism, avoiding the flat steel being in a tilted state during welding and affecting 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 penetrated through the surface of the sliding plate, a connecting block 1 is fixedly installed on the surface of the sliding plate, a connecting rod is rotatably installed on the end of the connecting block 1 away from the sliding plate, and a connecting block 2 is fixedly installed on the inner wall of the processing frame to fix its moving trajectory, and the spring arranged inside the sliding plate can achieve the effect of self-adaptation to flat steels of different sizes.

[0008] According to the above technical scheme, a reciprocating thread groove is provided on the surface of the rotating shaft, the centering plate is connected to the rotating shaft by threads, a spring 1 is arranged between the centering plate and the buffer plate, a torsion spring is arranged between the fixed shaft 2 and the connecting shaft, the end of the connecting block 2 away from the inner wall of the processing frame is rotatably connected to the connecting rod, a spring 2 is arranged between the fixed box and the sliding plate, the gear is meshed with the tooth plate, the end of the L-shaped plate away from the fixed shaft 1 is set as an inclined surface 1, and the end of the inclined plate away from the processing frame is set as an inclined surface 2, and a conveyor belt 1 is transmission-connected between the rotating shaft and the conveying mechanism to avoid vibration or shaking of the flat steel during laser welding, thereby affecting the effect of laser welding, thereby improving the quality of the finished product after welding and the stability during welding.

[0009] According to the above technical scheme, the cleaning device and the trimming device are included, and the cleaning device includes a fixed plate, a cleaning plate, an adaptable plate, a cleaning cylinder, an eccentric wheel 1, a fixed block, a rotating rod, an eccentric wheel 2 and a knocking rod. The fixed plate is fixedly installed on the surface of the sliding plate, the cleaning plate is fixedly installed on the end of the fixed plate away from the sliding plate, the adaptable plate slides through the surface of the cleaning plate, the cleaning cylinder rotates and penetrates the surface of the adaptable plate, the eccentric wheel 1 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 and penetrates the surface of the fixed block, the eccentric wheel 2 is fixedly installed on the circumferential surface of the rotating rod, and the knocking rod is slidably installed on the surface of the cleaning plate, so as to clean the surface of the flat steel, which helps to better focus the laser beam, improve welding accuracy, and avoid uneven or incomplete welding due to surface impurities.

[0010] According to the above technical solution, a telescopic elastic rod is fixedly installed on the top of the cleaning plate, the free end of the telescopic elastic rod is fixedly connected to the knocking rod, and a conveyor belt is transmission-connected between the rotating rod and the cleaning cylinder. By cleaning these impurities, it is ensured that the laser beam is directly irradiated onto 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 knocking rod away from the cleaning plate is circular, a spring three is arranged between the cleaning plate and the adaption plate, and the circumferential surface of the cleaning cylinder is provided with bristles, and the surface of the flat steel is knocked to remove impurities and protrusions on its surface, and tapping or vibration treatment can help release some of the internal stress in the plate, reduce possible deformation during welding, and ensure that the welding line is more precise.

[0012] According to the above technical scheme, the trimming device includes an S-shaped plate, a scraper, a slide plate, a second telescopic elastic rod, a telescopic column, a sliding frame, a pressure plate, a third telescopic elastic rod, a fixed rod, a sliding block, a pressure plate and a buffer plate. The S-shaped plate is fixedly mounted on the surface of the buffer plate, the scraper is fixedly mounted on the end of the S-shaped plate away from the buffer plate, the slide plate is slidably mounted on the surface of the machine tool, the telescopic column is fixedly mounted on the surface of the slide plate, the sliding frame is fixedly mounted on the top of the scraper, the pressure plate slides through the surface of the scraper, the third telescopic elastic rod is fixedly mounted on the surface of the pressure plate, the fixed rod is fixedly mounted on the surface of the pressure plate, the sliding block is slidably mounted on the surface of the sliding frame, the pressure plate is fixedly mounted on the surface of the sliding block, and the buffer plate slides through the surface of the pressure plate to scrape off the burrs on both ends of the flat steel, ensure that the edges of the plates after welding are neat and smooth, improve the appearance quality of the final product, and thereby improve the overall processing effect.

[0013] According to the above technical solution, a telescopic elastic rod four is fixedly installed on the surface of the scraper, and the free end of the telescopic elastic rod four is fixedly connected to the pressure plate. A scraper is provided on the surface of the scraper. The telescopic elastic rod two is fixedly installed on the surface of the processing frame, and the free end of the telescopic elastic 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 elastic rod three is fixedly connected to the scraper, which avoids shaking or vibration during the trimming process of the flat steel to affect the trimming effect, thereby resulting in inadequate processing of edge burrs, and the stability of the flat steel is maintained during the trimming process to better perform edge processing.

[0014] According to the above technical solution, the surface of the sliding block is provided with an inclined groove, which is slidably connected to the circumferential surface of the fixed rod, and the pressure plate is slidably installed on the inner wall of the sliding frame. The movement of the pressure plate drives the buffer plate to move downward to press the surface of the flat steel, and the buffer plate can shrink according to the size of the flat steel through the spring arranged on the surface.

[0015] The present invention provides a low-temperature resistant ship flat steel welding device, which has the following beneficial effects:

[0016] (1) The low-temperature resistant ship flat steel welding device drives the center plate to move by rotating the rotating shaft, and the movement of the center plate drives the movement of the buffer plate. The buffer plate moves to contact and squeeze the flat steel to move toward the middle and achieves the effect of centering and positioning it for transportation, so that the flat steel is always kept in the middle of the conveying mechanism, avoiding the flat steel being in a tilted state during the welding process after the metal plate is offset, thereby affecting the accuracy of the welding process.

[0017] (2) In the low-temperature resistant ship flat steel welding device, the connecting block 1 moves under the action of the connecting rod and drives the sliding plate to move downward, and 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, thereby fixing its moving trajectory. In addition, the spring arranged inside the sliding plate can achieve the effect of self-adaptation to flat steels of different sizes, thereby avoiding vibration or shaking of the flat steel during laser welding, which in turn affects the effect of laser welding, thereby improving the quality of the finished product after welding and the stability during welding.

[0018] (3) The low-temperature resistant ship flat steel welding device drives the cleaning cylinder to move downward by adapting to the movement of the plate until it contacts the surface of the flat steel. At this time, the cleaning cylinder rotates under the action of the flat steel during the movement, driving the brush bristles to rotate to clean the surface of the flat steel. By cleaning these impurities, it helps to better focus the laser beam on the target material, reduce reflection and scattering, and thus improve the stability and quality of welding. The rotation of the cleaning cylinder drives the rotating rod to rotate.

[0019] (4) In the low-temperature resistant ship flat steel welding device, the rotating rod rotates to drive the eccentric wheel 2 to rotate, and the eccentric wheel 2 rotates to contact and squeeze the knocking rod to move downward to knock on the surface of the flat steel to generate vibration, which can help release some of the internal stress in the plate, reduce possible deformation during welding, and ensure that the welding line is more accurate.

[0020] (5) The low-temperature resistant ship flat steel welding device drives the S-shaped plate to move until it fits the surface of the flat steel when the buffer 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. At the same time, the movement of the scraper drives the scraper to move to scrape off the burrs at both ends of the flat steel, ensuring that the edges of the plates after welding are neat and smooth, improving the appearance quality of the final product, and thus improving the overall processing effect.

[0021] (6) In the low-temperature resistant ship flat steel welding device, the movement of the pressure plate drives the buffer plate to move downward to press the surface of the flat steel. At the same time, the buffer plate can shrink according to the size of the flat steel through the spring arranged on the surface, thereby avoiding shaking or vibration during the trimming process of the flat steel that affects the trimming effect, thereby causing inadequate treatment of edge burrs, and maintaining the stability of the flat steel during the trimming process to better perform edge treatment. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0024] Figure 3 It is a schematic diagram of the position structure of the centering plate and the fixing box of the present invention;

[0025] Figure 4 It is a schematic diagram of the position structure of the tooth plate and the tooth plate of the present invention;

[0026] Figure 5 It is a schematic diagram of the position structure of the fixing plate and the cleaning plate of the present invention;

[0027] Figure 6 It is a schematic diagram of the position structure of the eccentric wheel 1 and the S-shaped plate of the present invention;

[0028] Figure 7 It is a schematic diagram of the position structure of the pressing plate and the pressing plate of the present invention.

[0029] In the figure: 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, slow spring plate; 65, tooth plate; 66, fixed frame; 67, gear; 68, fixed shaft 1; 69, fixed shaft 2; 610, limit plate; 611, connecting shaft; 612, torsion spring; 613, L-shaped plate; 614, inclined plate; 615, fixed box; 616, sliding plate; 617, roller; 618, connecting block 1; 619, linkage rod; 620 , connecting block two; 71, fixed plate; 72, cleaning plate; 73, adaptation plate; 74, cleaning cylinder; 75, eccentric wheel one; 76, fixed block; 77, rotating rod; 78, eccentric wheel two; 79, knocking rod; 710, telescopic elastic rod one; 81, S-shaped plate; 82, scraper; 83, slide plate; 84, telescopic elastic rod two; 85, telescopic column; 86, sliding frame; 87, pressure plate; 88, telescopic elastic rod three; 89, fixed rod; 810, sliding block; 811, pressure plate; 812, buffer plate; 813, telescopic elastic rod four. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-Figure 7, one embodiment of the present invention is: a low temperature resistant ship flat steel welding device, including a machine tool 1, including a positioning device, a laser welding mechanism 2 is arranged 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, and a conveying mechanism 5 is arranged 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 tooth plate 65, a fixed frame 66, a gear 67, a fixed shaft 1 68, a fixed shaft 2 69, a limit 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 buffer plate 64 is fixedly installed It is installed on the end of the connecting rod 63 away from the motor 4, the toothed plate 65 is fixedly installed on the end of the connecting rod 63 away from the buffer plate 64, the fixed frame 66 is fixedly installed on the surface of the center plate 62, the gear 67 is rotatably installed on the circumferential surface of the fixed frame 66, the fixed shaft 1 68 is fixedly installed on the surface of the center plate 62, the fixed shaft 2 69 is on the surface of the center plate 62, the limit plate 610 is rotatably installed on the end of the fixed shaft 1 68 away from the center plate 62, the connecting shaft 611 is fixedly installed on the surface of the limit plate 610, the L-shaped plate 613 is fixedly installed on the surface of the limit plate 610, the inclined plate 614 is fixedly installed on the inner wall of the processing frame 3, the L-shaped plate 613 moves to contact and squeeze the inclined plate 614, and the L-shaped plate 613 rotates with the fixed shaft 1 68 as the center under the action of the inclined plate 614.

[0032] A fixed box 615 is fixedly installed on the inner wall of the processing frame 3, and a sliding plate 616 is slidably installed on the inner wall of the fixed box 615. A roller 617 is rotatably penetrated through the surface of the sliding plate 616, and a connecting block 1 618 is fixedly installed on the surface of the sliding plate 616. A connecting rod 619 is rotatably installed on the end of the connecting block 1 618 away from the sliding plate 616. A connecting block 2 620 is fixedly installed on the inner wall of the processing frame 3. The center plate 62 moves toward the fixed box 615 to drive the connecting block 2 620 to move, and the movement of the connecting block 2 620 drives the connecting rod 619 to rotate.

[0033] A reciprocating thread groove is provided on the surface of the rotating shaft 61, the centering plate 62 is connected to the rotating shaft 61 by threads, a spring 1 is arranged between the centering plate 62 and the buffer plate 64, a torsion spring 612 is arranged between the fixed shaft 2 69 and the connecting shaft 611, the end of the connecting block 2 620 away from the inner wall of the processing frame 3 is rotatably connected to the connecting rod 619, a spring 2 is arranged between the fixed box 615 and the sliding plate 616, the gear 67 is meshed with the tooth plate 65, the end of the L-shaped plate 613 away from the fixed shaft 1 68 is set as a slope 1, and the end of the inclined plate 614 away from the processing frame 3 is set as a slope 2, a conveyor belt 1 is transmission-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, and the movement of the centering plate 62 drives the buffer plate 64 to move.

[0034] When the present embodiment is working, the staff 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 to drive the conveying mechanism 5 to operate. At this time, the conveying mechanism 5 operates to drive the flat steel to move in the direction close to the processing frame 3, and at the same time, the output end of the motor 4 rotates to drive the rotating shaft 61 to rotate. Since the rotating shaft 61 is connected to the center plate 62 by a thread, the rotating shaft 61 rotates to drive the center plate 62 to move, and the center plate 62 moves to drive the slow-spring plate 64 to move. The slow-spring plate 64 moves to contact and squeeze the flat steel to move to the middle and achieve the effect of positioning it, so that the flat steel is always kept in the center of the conveying mechanism 5. In order to avoid the flat steel being in an inclined state during welding and thus affecting the accuracy of welding processing, the movement of the buffer plate 64 drives the connecting rod 63 to move, and at the same time, the movement of the connecting rod 63 drives the toothed plate 65 to move. Because the toothed plate 65 is engaged with the gear 67, the toothed plate 65 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 limit plate 610 through the connecting shaft 611 through its own elastic force to always contact the surface of the gear 67, limiting the counterclockwise rotation of the gear 67. At the same time, when the limit plate 610 moves The movement in the direction close to the processing frame 3 drives the L-shaped plate 613 to move. At this time, the L-shaped plate 613 moves to contact and squeeze the inclined plate 614. Under the action of the inclined plate 614, the L-shaped plate 613 rotates with the fixed shaft 1 68 as the center, releasing the limit of the gear 67, and the toothed plate 65 is able to move. At the same time, the center plate 62 moves in the direction close to the fixed box 615 and drives the connecting block 2 620 to move. The movement of the connecting block 2 620 drives the connecting rod 619 to rotate. At the same time, the connecting rod 619 rotates and drives the connecting block 1 618 to move downward. At this time, the connecting block 1 618 moves under the action of the connecting rod 619 and drives The sliding plate 616 moves downward, and the movement of the sliding plate 616 drives the roller 617 to move downward. At this time, the roller 617 moves downward until it contacts the surface of the flat steel, thereby fixing its moving trajectory. The spring arranged inside the sliding plate 616 can adapt to flat steels of different sizes, thereby avoiding vibration or shaking of the flat steel during laser welding, thereby affecting the effect of laser welding, thereby improving the quality of the finished product after welding and the stability during welding. The flat steel then moves until it reaches the welding processing area, and the laser welding mechanism 2 welds the flat steel.

[0035] See also Figure 1-Figure 7On the basis of the above embodiment, 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 1 75, a fixed block 76, a rotating rod 77, an eccentric wheel 2 78 and a knocking rod 79, the fixed plate 71 is fixedly mounted on the surface of the sliding plate 616, the cleaning plate 72 is fixedly mounted 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 and penetrates the surface of the adapting plate 73, the eccentric wheel 1 75 is fixedly mounted on the circumferential surface of the cleaning cylinder 74, the fixed block 76 is fixedly mounted on the surface of the cleaning plate 72, the rotating rod 77 rotates and penetrates the surface of the fixed block 76, the eccentric wheel 2 78 is fixedly mounted on the circumferential surface of the rotating rod 77, the knocking rod 79 is slidably mounted on the surface of the cleaning plate 72, the rotating rod 77 rotates to drive the eccentric wheel 2 78 to rotate, the eccentric wheel 2 78 rotates to contact and squeeze the knocking rod 79 to move downward to knock the surface of the flat steel.

[0036] A telescopic spring rod 710 is fixedly installed on the top of the cleaning plate 72, and the free end of the telescopic spring rod 710 is fixedly connected to the knocking rod 79. A conveyor belt 2 is transmission-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 at the same time, the rotation of the rotating rod 77 drives the eccentric wheel 2 78 to rotate.

[0037] The end of the knocking rod 79 away from the cleaning plate 72 is circular, a spring three is arranged between the cleaning plate 72 and the adapting plate 73, and bristles are arranged on the circumferential surface of the cleaning cylinder 74. The cleaning cylinder 74 rotates under the action of the flat steel during the movement, driving the bristles to rotate.

[0038] The trimming device includes an S-shaped plate 81, a scraper 82, a slide plate 83, a second telescopic spring rod 84, a telescopic column 85, a sliding frame 86, a pressure plate 87, a third 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 mounted on the surface of the buffer plate 64, the scraper 82 is fixedly mounted on the end of the S-shaped plate 81 away from the buffer plate 64, the slide plate 83 is slidably mounted on the surface of the machine tool 1, the telescopic column 85 is fixedly mounted on the surface of the slide plate 83, and the sliding frame 86 is fixedly mounted on the scraper 8 2, the pressure plate 87 slides through the surface of the scraper 82, the telescopic spring rod 88 is fixedly installed on the surface of the pressure plate 87, the fixed rod 89 is fixedly installed on the surface of the pressure plate 87, the sliding block 810 is slidably installed on the surface of the sliding frame 86, the pressure plate 811 is fixedly installed on the surface of the sliding block 810, the buffer plate 812 slides through the surface of the pressure plate 811, the sliding block 810 moves downward to drive the pressure plate 811 to move, and the pressure plate 811 moves to drive the buffer plate 812 to move downward to press the surface of the flat steel.

[0039] A telescopic elastic rod 4 813 is fixedly installed on the surface of the scraper 82, and the free end of the telescopic elastic rod 4 813 is fixedly connected to the pressure plate 811. A scraper is provided on the surface of the scraper 82. A telescopic elastic rod 2 84 is fixedly installed on the surface of the processing frame 3, and the free end of the telescopic elastic rod 2 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 elastic rod 3 88 is fixedly connected to the scraper 82.

[0040] An inclined groove is provided on the surface of the sliding block 810, 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 drives the buffer plate 812 to move downward to press the surface of the flat steel. At the same time, the buffer plate 812 can shrink according to the size of the flat steel through the spring arranged on the surface.

[0041] When this embodiment is working: when the sliding plate 616 moves downward under the action of the connecting block 618, it drives the fixed plate 71 to move downward, and at the same time, the fixed plate 71 moves to drive the cleaning plate 72 to move downward, and the cleaning plate 72 moves downward to drive the adapting plate 73 to move, and at the same time, the adapting plate 73 moves to drive the cleaning cylinder 74 to move downward until it contacts the surface of the flat steel. At this time, the cleaning cylinder 74 rotates under the action of the flat steel during the movement, driving the bristles to rotate to clean the surface of the flat steel, which helps to better focus the laser beam, improve welding accuracy, avoid uneven or incomplete welding caused by surface impurities, and ensure that the laser beam is directly irradiated on the target material by cleaning these impurities, reducing reflection and Scattering, thereby improving the stability and quality of welding, and at the same time, the adaptation plate 73 is slidably installed on the surface of the cleaning plate 72 to realize adaptive flat steel size, and at the same time, the cleaning cylinder 74 rotates to drive the rotating rod 77 to rotate, and at the same time, the rotating rod 77 rotates to drive the eccentric wheel 2 78 to rotate, and the eccentric wheel 2 78 rotates to contact and squeeze the knocking rod 79 to move downward to knock on the surface of the flat steel to remove impurities and protrusions on its surface, and tapping or vibration treatment can help release some of the internal stress in the plate, reduce possible deformation during welding, and ensure that the welding line is more precise. At this time, the deformation recovery of the telescopic elastic rod 1 710 pushes the knocking rod 79 to reset, thereby realizing continuous knocking on the surface of the flat steel.

[0042] When the cleaning cylinder 74 rotates under the action of the flat steel during the movement, it drives the eccentric wheel 75 to rotate. At the same time, the eccentric wheel 75 rotates to contact and squeeze the S-shaped plate 81 to move away from the processing frame 3. At the same time, the buffer plate 64 drives the S-shaped plate 81 to move until it fits the surface of the flat steel when it moves to adapt to the size of the flat steel. At the same time, the S-shaped plate 81 moves under the action of the eccentric wheel 75 and drives the scraper 82 to move. At the same time, the movement of the scraper 82 drives the scraper to move and scrape off the burrs at both ends of the flat steel, ensuring that the edges of the plates after welding are neat and smooth, improving the appearance quality of the final product, and thus improving the overall processing effect. At the same time, the scraper 82 moves under the action of the buffer plate 64, and at the same time, the scraper 82 moves in the direction close to the flat steel, driving 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, and at the same time, the movement of the pressure plate 87 drives the fixed rod 89 to move, and the fixed rod 89 moves to contact and extrude and drives the sliding block 810 to move downward. At the same time, the sliding block 810 moves downward to drive the pressure plate 811 to move, and the pressure plate 811 moves to drive the buffer plate 812 to move downward to press the surface of the flat steel. At the same time, the buffer plate 812 can shrink according to the size of the flat steel through the spring arranged on the surface, avoiding shaking or vibration during the trimming process of the flat steel that affects the trimming effect, thereby resulting in inadequate processing of edge burrs, and maintaining the stability of the flat steel during the trimming process for better edge processing.

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

Claims

1. A low temperature resistant shipbuilding flat steel welding device, comprising a machine tool (1), characterized in that: It also includes a positioning device, a cleaning device and a trimming device; The surface of the machine tool (1) is provided with a laser welding mechanism (2), the top of the machine tool (1) is fixedly provided with a processing frame (3), the top of the machine tool (1) is fixedly provided with a motor (4), and the surface of the machine tool (1) is provided with a conveying mechanism (5); The positioning device comprises a rotating shaft (61), a centering plate (62), a connecting rod (63), a spring-absorbing plate (64), a toothed plate (65), a fixing frame (66), a gear (67), a fixing shaft one (68), a fixing shaft two (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 mounted on the output end of the motor (4); the centering plate (62) is slidably mounted on the circumferential surface of the rotating shaft (61); the connecting rod (63) slides through the surface of the centering plate (62); the spring-absorbing plate (64) is fixedly mounted on the end of the connecting rod (63) away from the motor (4); the toothed plate (65) is fixedly mounted 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 fixing shaft 1 (68) is fixedly mounted on the surface of the center plate (62), the fixing shaft 2 (69) is mounted on the surface of the center plate (62), the limiting plate (610) is rotatably mounted on the end of the fixing shaft 1 (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), and the inclined plate (614) is fixedly mounted on the inner wall of the processing frame (3).

2. A low temperature resistant shipbuilding flat steel welding device according to claim 1, characterized in that: A fixed box (615) is fixedly installed on the inner wall of the processing frame (3), a sliding plate (616) is slidably installed on the inner wall of the fixed box (615), a roller (617) is rotatably penetrated through the surface of the sliding plate (616), a connecting block 1 (618) is fixedly installed on the surface of the sliding plate (616), a connecting rod (619) is rotatably installed on one end of the connecting block 1 (618) away from the sliding plate (616), and a connecting block 2 (620) is fixedly installed on the inner wall of the processing frame (3).

3. A low temperature resistant shipbuilding flat steel welding device according to claim 2, characterized in that: A reciprocating thread groove is provided on the surface of the rotating shaft (61); the centering plate (62) is connected to the rotating shaft (61) by threads; a spring 1 is provided between the centering plate (62) and the buffer plate (64); a torsion spring (612) is provided between the fixed shaft 2 (69) and the connecting shaft (611); one end of the connecting block 2 (620) away from the inner wall of the processing frame (3) is rotatably connected to the linkage rod (619); a spring 2 is provided between the fixed box (615) and the sliding plate (616); the gear (67) is meshed with the tooth plate (65); one end of the L-shaped plate (613) away from the fixed shaft 1 (68) is provided as an inclined surface 1; one end of the inclined plate (614) away from the processing frame (3) is provided as an inclined surface 2; and a conveyor belt 1 is transmission-connected between the rotating shaft (61) and the conveying mechanism (5).

4. A low temperature resistant shipbuilding flat steel welding device according to claim 3, characterized in that: The cleaning device comprises a fixed plate (71), a cleaning plate (72), an adaptable plate (73), a cleaning cylinder (74), an eccentric wheel 1 (75), a fixed block (76), a rotating rod (77), an eccentric wheel 2 (78) and a knocking rod (79), wherein the fixed plate (71) is fixedly mounted on the surface of the sliding plate (616), the cleaning plate (72) is fixedly mounted on an end of the fixed plate (71) away from the sliding plate (616), the adaptable plate (73) slides through the surface of the cleaning plate (72), the cleaning cylinder (74) rotates through the surface of the adaptable plate (73), the eccentric wheel 1 (75) is fixedly mounted on the circumferential surface of the cleaning cylinder (74), the fixed block (76) is fixedly mounted on the surface of the cleaning plate (72), the rotating rod (77) rotates through the surface of the fixed block (76), the eccentric wheel 2 (78) is fixedly mounted on the circumferential surface of the rotating rod (77), and the knocking rod (79) is slidably mounted on the surface of the cleaning plate (72).

5. A low temperature resistant shipbuilding flat steel welding device according to claim 4, characterized in that: A telescopic spring rod (710) is fixedly mounted on the top of the cleaning plate (72), the free end of the telescopic spring rod (710) is fixedly connected to the knocking rod (79), and a conveyor belt (2) is transmission-connected between the rotating rod (77) and the cleaning cylinder (74).

6. A low temperature resistant shipbuilding flat steel welding device according to claim 5, characterized in that: One end of the knocking rod (79) away from the cleaning plate (72) is circular, a spring three is arranged between the cleaning plate (72) and the adapting plate (73), and the circumferential surface of the cleaning cylinder (74) is provided with bristles.

7. A low temperature resistant shipbuilding flat steel welding device according to claim 6, characterized in that: The trimming device comprises an S-shaped plate (81), a scraper (82), a slide plate (83), a second telescopic elastic rod (84), a telescopic column (85), a sliding frame (86), a pressure plate (87), a third telescopic elastic 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 mounted on the surface of the buffer plate (64); the scraper (82) is fixedly mounted on one end of the S-shaped plate (81) away from the buffer plate (64); the slide plate (83) is slidably mounted on the surface of the machine tool (1); the telescopic column (85) is fixedly mounted on the surface of the machine tool (1); and the 85) is fixedly mounted on the surface of the slide plate (83), the sliding frame (86) is fixedly mounted on the top of the scraper (82), the pressure plate (87) slides through the surface of the scraper (82), the telescopic elastic rod three (88) is fixedly mounted on the surface of the pressure plate (87), the fixed rod (89) is fixedly mounted on the surface of the pressure plate (87), the sliding block (810) is slidably mounted on the surface of the sliding frame (86), the pressure plate (811) is fixedly mounted on the surface of the sliding block (810), and the buffer plate (812) slides through the surface of the pressure plate (811).

8. A low temperature resistant shipbuilding flat steel welding device according to claim 7, characterized in that: A telescopic elastic rod four (813) is fixedly mounted on the surface of the scraper (82), the free end of the telescopic elastic rod four (813) is fixedly connected to the pressure plate (811), a scraper blade is provided on the surface of the scraper (82), the telescopic elastic rod two (84) is fixedly mounted on the surface of the processing frame (3), the free end of the telescopic elastic 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 elastic rod three (88) is fixedly connected to the scraper (82).

9. A low temperature resistant shipbuilding flat steel welding device according to claim 8, characterized in that: The surface of the sliding block (810) is provided with an inclined sliding groove, and the inclined sliding groove is slidably connected to the circumferential surface of the fixing rod (89), and the pressing plate (811) is slidably mounted on the inner wall of the sliding frame (86).

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