Automatic production line for collaborative operation of continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment

Abstract

The invention provides an automatic production line for collaborative operation of continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment, and relates to the technical field of laser welding, the automatic production line comprises a grinding box, a laser processing box is arranged on one side of the grinding box, and inlets and outlets are formed in the two sides of the grinding box and the two sides of the laser processing box; a connecting channel is fixed to an inlet and outlet between the grinding box and the laser processing box, a sending-out channel is fixed to an inlet and outlet in the outer side of the laser processing box, and compared with the prior art, the grinding box communicates with the laser processing box through the connecting channel, and an extending-out plate and a containing plate for clamping plates are arranged in the connecting channel and the sending-out channel; the clamping distance suitable for plates can be adjusted through the conveying assembly, the plates are driven to be intermittently fed into the grinding box and the laser machining box in a clamping traction mode, air in the laser machining box is pumped out in cooperation with the air storage cylinder, the relative vacuum environment is kept, the effect of laser deep penetration welding is prevented from being affected, assembly line machining is achieved, and efficiency is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of laser welding, in particular to an automated production line for the coordinated operation of continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment. Background Art

[0002] At present, intelligent welding systems and intelligent heat treatment production lines include automatic and semi-automatic arc and plasma arc welding machines and other metal cutting technologies. Among them, laser deep penetration welding is when the laser power density reaches 10^6~10^7W / cm 2 When the metal surface vaporizes, it forms a small, steam-filled pore structure, enabling deep welding through the pore effect. This technology features a large aspect ratio (up to 10:1), low heat input, and dense welds. It is used in the automotive, aerospace, and other fields to control the deformation of thin-walled parts and join dissimilar materials. Its core process parameters include eight key indicators, including laser power, beam spot size, and welding speed. The equipment system consists of a continuous-wave CO2 laser and an automated control module.

[0003] When performing laser deep penetration welding on metal materials in the existing technology, it is necessary to pre-treat the surface of the material first, wherein the oxide layer is removed by grinding. Conventional technical methods require relying on grinders or shot blasting machines for processing. When the plate enters the laser deep penetration welding, a vacuum environment needs to be maintained for processing. In this process, the automation effect of the equipment is poor, and manual loading and unloading is required. When processing long plates, it is not convenient to perform continuous processing and transportation, which can easily cause the vacuum environment inside the laser deep penetration welding box to be destroyed. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide an automated production line that cooperates with continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment to solve the problems raised in the above background technology. The present invention has a novel structure. The grinding box and the laser processing box are connected by a connecting channel. There are protruding plates and storage plates for clamping the plates inside the connecting channel and the delivery channel. The clamping spacing suitable for the plates can be adjusted by the conveying assembly. The clamping traction method drives the plates to be intermittently fed into the grinding box and the laser processing box. The air inside the laser processing box is extracted with the help of the air cylinder to maintain a relatively vacuum environment, thereby avoiding affecting the effect of laser deep penetration welding. The assembly line processing is more efficient.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: an automated production line for the coordinated operation of continuous vacuum laser deep fusion welding and workpiece surface oxidation pretreatment, including a polishing box, a laser processing box is provided on one side of the polishing box, and inlets and outlets are provided on both sides of the polishing box and the laser processing box. The inlet and outlet between the polishing box and the laser processing box are fixed with a connecting channel, and the inlet and outlet on the outside of the laser processing box are fixed with a delivery channel. The entrance of the polishing box penetrates the metal plate, and the metal plate passes along the connecting channel, the laser processing box and the delivery channel. A mounting frame is provided at the upper and lower ends of the metal plate inside the polishing box, and a polishing rod is installed inside the mounting frame through the rotation of a motor, and the polishing rod contacts the top and bottom surfaces of the metal plate respectively. The top of the connecting channel is provided with an air cylinder, and the two ends of the air cylinder are fixed on the top of the grinding box and the laser processing box, and the top and bottom of the connecting channel are provided with a driving assembly, and the driving assembly includes a sliding frame, and the top and bottom of the connecting channel are fixed with a sliding frame, and a moving block is slidably connected inside the sliding frame, and a second receiving plate is fixed on the outer surface of the moving block, and a second extending plate is slidably inserted inside the second receiving plate, and the second extending plate is in sliding contact with the upper and lower ends of the metal plate, and the first receiving plate is in sliding contact with the inner wall of the connecting channel, and a conveying assembly is provided at the inlet end of the grinding box, and the conveying assembly includes a roller shaft, and the inlet end of the grinding box is located at the top and bottom of the metal plate and roller shafts are installed, and the roller shaft contacts the upper and lower surfaces of the metal plate.

[0006] Furthermore, the conveying assembly also includes a fixed frame, fixed frames are provided at both ends of the roller shaft, and the fixed frames are fixed on the outer wall of the inlet end of the polishing box, a second bidirectional screw is rotatably installed inside the fixed frame on one side of the roller shaft, and two screw blocks are threadedly sleeved on the surface of the second bidirectional screw, and the roller shaft is rotatably installed on the screw blocks corresponding to the straight line.

[0007] Furthermore, a first bidirectional screw is rotatably installed on one side of the mounting frame inside the polishing box, and both ends of the mounting frame are threadedly sleeved on the surface of the first bidirectional screw. A sliding rod is fixed to the polishing box on the other side of the mounting frame, and the other side of the mounting frame is slidably sleeved on the sliding rod.

[0008] Furthermore, two first slide rails are fixed on the top inner wall of the laser processing box, and a second slide rail perpendicular to the first slide rail is slidably installed at the bottom of the first slide rail, and a first screw rod is rotatably installed inside the second slide rail, and a mounting seat is threadedly sleeved on the surface of the first screw rod, and electric push rods are fixed on both sides of the mounting seat of the second slide rail, and a laser device is fixed at the bottom of the electric push rod.

[0009] Furthermore, a third slide rail is fixed on the top and bottom inner walls of the delivery channel, and a first storage plate is slidably installed at the upper and lower ends of the delivery channel, and the first storage plate slides along the third slide rail. A first extension plate is slidably inserted into the interior of the first storage plate, and the first extension plate contacts the upper and lower surfaces of the metal plate. Elastic bands are fixed on both sides of the first and second extension plates corresponding to the metal plate.

[0010] Furthermore, the drive assembly also includes a second screw rod, the second screw rod is rotatably installed inside the sliding frame through a bearing, the moving block is threadedly sleeved on the surface of the second screw rod, and a moving notch is opened at the top of the sliding frame at the upper end of the connecting channel.

[0011] Furthermore, a contact plate is fixed on the moving block passing through the moving notch, and a contact switch is fixed on the bottom of the air storage cylinder near the laser polishing box. After the moving block moves along the slide rail, the contact plate contacts the contact switch.

[0012] Furthermore, an air intake pipe is fixed to one end of the air storage cylinder facing the laser polishing box, an air hole is opened on the top of the laser polishing box, the air intake pipe is connected to the air hole, two delivery pipes are fixed to the tail end of the air storage cylinder, and the bottom of the delivery pipe is located at the top of the metal plate and a nozzle is fixed at the top position, and the nozzles correspond to the upper and lower end surfaces of the metal plate from both sides respectively.

[0013] Furthermore, vacuum cleaners are fixed on the front and rear end outer walls of the polishing box.

[0014] Furthermore, a connecting plate is fixed on the outside of the screw block, a connecting rod is fixed between the first extending plate and the second extending plate, and the outer end of the connecting rod is fixedly connected to the connecting plate, and a bent rod is fixed on the position of the connecting rod at the mounting frame.

[0015] Beneficial effects of the present invention:

[0016] 1. The present invention uses a second bidirectional screw driven by a motor on the top of the fixed frame to adjust the distance between the two rollers, thereby being suitable for feeding and processing metal sheets of different thicknesses. The rollers are driven by a separate motor, and an auxiliary drive component is used to drive the long metal sheet to move.

[0017] 2. The first extending plate and the second extending plate of the present invention are also in contact with the upper and lower ends of the metal plate, and the connecting rod part is actually composed of two ends. One end is connected to the screw block at a fixed length through a bent rod, and the other end is a telescopic rod style connecting the first extending plate and the second extending plate, which is convenient for the driving component to drive the extending plate and the receiving plate to clamp the metal plate and move without being interfered with by the position of the screw block.

[0018] 3. The first extending plate and the second extending plate of the present invention are connected to the screw block through a connecting rod, so when the position of the screw block and the roller is adjusted, the distance that the first extending plate and the second extending plate extend from the inside of the first receiving plate and the second receiving plate is also adjusted synchronously, and is kept compatible with the thickness of the metal plate, so that the roller can contact the upper and lower ends of the metal plate.

[0019] 4. The present invention draws the air in the laser processing box into the air storage cylinder. Since the metal plate is clamped and sealed by the first receiving plate and the first extending plate inside the delivery channel, it is convenient to maintain a sealed environment during the laser welding process. The second screw is driven by the built-in motor, and the moving block cooperates with the screw thread to slide along the slide rail. The second extending plate and the second receiving plate clamp the plate to move. Through the connection of the connecting rod, the first receiving plate and the first extending plate in the delivery channel also pull the metal plate outward until the contact plate moves along the moving notch and contacts the contact switch. The vacuum pump is turned off, the exhaust pump is turned on, and the air is sent to the nozzle through the delivery pipe. The nozzle is tilted to correspond to the upper and lower surfaces of the metal plate to blow away the debris and dust generated during the grinding process to avoid affecting the subsequent welding. At the same time, the vacuum cleaner at the outer end of the grinding box is turned on to suck away the floating dust and debris to avoid affecting the environment inside the grinding box.

[0020] 5. Compared with the prior art, the present invention has a grinding box and a laser processing box connected by a connecting channel. There are protruding plates and receiving plates for clamping the plates inside the connecting channel and the delivery channel. The clamping spacing suitable for the plates can be adjusted by the conveying component. The plates are intermittently fed into the grinding box and the laser processing box in a clamping and traction manner. The air inside the laser processing box is extracted with the help of an air cylinder to maintain a relatively vacuum environment, thereby avoiding affecting the effect of laser deep penetration welding. The assembly line processing is more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of an automated production line for the coordinated operation of continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment according to the present invention;

[0022] Figure 2 This is a schematic structural diagram of the polishing box inlet end of the automated production line for the coordinated operation of continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment according to the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of a laser processing box of an automated production line for the coordinated operation of continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment according to the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the conveying assembly of the automated production line for the coordinated operation of continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment according to the present invention;

[0025] Figure 5 This is a schematic diagram of the internal structure of a grinding box in an automated production line for the coordinated operation of continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment according to the present invention;

[0026] Figure 6 Schematic diagram of the top structure of the connecting channel of the automated production line for the coordinated operation of continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment of the present invention

[0027] Figure 7 This is a schematic diagram of the internal structure of the connecting channel of the automated production line for the coordinated operation of continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment according to the present invention;

[0028] Figure 8 This is a schematic diagram of the internal structure of the delivery channel of the automated production line for the coordinated operation of continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment according to the present invention;

[0029] Figure 9 This is a schematic diagram of the connection between the first receiving plate and the first extending plate of the automated production line for the coordinated operation of continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment of the present invention.

[0030] Figure: 1. Sanding box; 11. Vacuum cleaner; 12. Inlet / outlet; 13. First bidirectional screw; 14. Slide; 15. Mounting frame; 16. Sanding stick; 2. Laser processing box; 21. Delivery channel; 22. Box door; 23. First slide rail; 24. Second slide rail; 25. First screw; 26. Electric push rod; 27. Laser device; 28. Air hole; 29. ​​Third slide rail; 210. First storage plate; 211. First extension plate; 212. Elastic band; 3. Connection Channel; 4. Air cylinder; 41. Delivery pipe; 42. Nozzle; 43. Intake pipe; 44. Contact switch; 5. Drive assembly; 51. Slide frame; 52. Moving notch; 53. Contact plate; 54. Second screw rod; 55. Moving block; 56. Second receiving plate; 57. Second extending plate; 6. Delivery assembly; 61. Fixed frame; 62. Second bidirectional screw; 63. Screw block; 64. Roller; 65. Connecting plate; 66. Connecting rod; 67. Bending rod; 7. Metal sheet. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0032] See also Figures 1 to 9The present invention provides a technical solution: an automated production line for the coordinated operation of continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment, comprising a polishing box 1, a laser processing box 2 being provided on one side of the polishing box 1, an inlet and outlet 12 being provided on both sides of the polishing box 1 and the laser processing box 2, a connecting channel 3 being fixed to the inlet and outlet 12 between the polishing box 1 and the laser processing box 2, a delivery channel 21 being fixed to the inlet and outlet 12 outside the laser processing box 2, a metal plate 7 being passed through the entrance of the polishing box 1, and the metal plate being passed along the connecting channel 3, The laser processing box 2 and the delivery channel 21 pass through, and the interior of the polishing box 1 is provided with a mounting frame 15 at the upper and lower ends of the metal plate 7, and the interior of the mounting frame 15 is provided with a polishing rod 16 which is rotated by a motor. The polishing rod 16 is in contact with the top and bottom surfaces of the metal plate 7 respectively. The top of the connecting channel 3 is provided with an air cylinder 4, and the two ends of the air cylinder 4 are fixed to the top of the polishing box 1 and the laser processing box 2. The top and bottom of the connecting channel 3 are provided with a driving assembly 5, and the driving assembly 5 includes a sliding frame 51. The top of the connecting channel 3 is provided with an air cylinder 4. The top and bottom of the polishing box 1 are fixed with a sliding frame 51, and the sliding frame 51 is slidably connected to a moving block 55. A second receiving plate 56 is fixed to the outer surface of the moving block 55, and a second extending plate 57 is slidably inserted into the interior of the second receiving plate 56. The second extending plate 57 is in sliding contact with the upper and lower ends of the metal plate 7, and the first receiving plate 210 is in sliding contact with the inner wall of the connecting channel 3. The inlet end of the polishing box 1 is provided with a conveying assembly 6, and the conveying assembly 6 includes a roller 64. The inlet end of the polishing box 1 is located at the top and bottom of the metal plate 7. There is a roller 64, which contacts the upper and lower surfaces of the metal plate 7. When using the device, the metal plate 7 is fed into the inlet end of the grinding box 1, and its upper and lower surfaces are ground and deoxidized by the grinding rod 16 in the grinding box 1. Then, it is fed into the laser processing box 2 through the connecting channel 3 for laser deep melting welding. During this process, the vacuum environment inside the laser processing box 2 is maintained. Then, the metal plate 7 is driven by the driving component 5 to be fed into the laser processing box 2 in sections to maintain the overall continuous processing. A box door 22 is installed on the outside of the laser processing box 2.

[0033] In this embodiment, the conveying component 6 also includes a fixed frame 61, and fixed frames 61 are provided at both ends of the roller shaft 64, and the fixed frame 61 is fixed on the outer wall of the inlet end of the grinding box 1. A second bidirectional screw 62 is rotatably installed inside the fixed frame 61 on one side of the roller shaft 64, and two screw blocks 63 are threadedly sleeved on the surface of the second bidirectional screw 62. The roller shaft 64 is rotatably installed on the screw blocks 63 corresponding to the straight line. The second bidirectional screw 62 is driven by the motor at the top of the fixed frame 61, and the spacing between the two roller shafts 64 can be adjusted, so that it is suitable for feeding metal plates 7 of different thicknesses into the processing. The roller shaft 64 is driven by a separate motor to assist the drive component 5 to drive the long metal plate 7 to move.

[0034] In this embodiment, the inside of the polishing box 1 is rotatably mounted on one side of the mounting frame 15, and the two ends of the mounting frame 15 are threadedly sleeved on the surface of the first bidirectional screw 13. The polishing box 1 is fixed with a slide rod 14 on the other side of the mounting frame 15, and the other side of the mounting frame 15 is slidably sleeved on the slide rod 14. Two first slide rails 23 are fixed on the top inner wall of the laser processing box 2, and a second slide rail 24 perpendicular to the first slide rail 23 is slidably mounted on the bottom of the first slide rail 23, and a first screw rod 25 is rotatably mounted inside the second slide rail 24, and the surface of the first screw rod 25 is threadedly sleeved with a mounting seat, and the second screw rod 25 is rotatably mounted on the inside of the second slide rail 24. Electric push rods 26 are fixed on both sides of the mounting base of the second slide rails 24, and a laser device 27 is fixed at the bottom of the electric push rods 26. The first bidirectional screw 13 is driven by the motor at the top. The first bidirectional screw 13 rotates, and the mounting frame 15 moves. The position of the grinding rod 16 is adjusted according to the thickness of the metal sheet 7, and the upper and lower surfaces of the metal sheet 7 are ground. The first screw rod 25 driven by the built-in motor of the first slide rail 23 and the second slide rail 24 can adjust the X and Y axes of the laser device 27, and the height of the laser device 27 can be adjusted by the electric push rod 26 to adjust the position of the metal sheet 7 that requires laser welding and the thickness of the metal sheet 7.

[0035] In this embodiment, a third slide rail 29 is fixed on the top and bottom inner walls of the delivery channel 21, and a first receiving plate 210 is slidably installed at the upper and lower ends of the delivery channel 21, and the first receiving plate 210 slides along the third slide rail 29. The first receiving plate 210 is slidably inserted into the interior of the first receiving plate 210, and the first extending plate 211 contacts the upper and lower surfaces of the metal plate 7. The first extending plate 211 and the second extending plate 57 are fixed with elastic bands 212 on both sides of the corresponding metal plate 7, and the screw block 63 A connecting plate 65 is fixed to the outside of the first extending plate 211 and the second extending plate 57. A connecting rod 66 is fixed between the first extending plate 211 and the second extending plate 57, and the outer end of the connecting rod 66 is fixedly connected to the connecting plate 65. The connecting rod 66 is located at the position of the mounting frame 15 and is fixed with a bent rod 67. Here, the first extending plate 211 and the second extending plate 57 are connected to the screw block 63 through the connecting rod 66. Therefore, when adjusting the position of the screw block 63 and the roller shaft 64, the first extending plate 211 and the second extending plate 57 extend from the inside of the first receiving plate 210 and the second receiving plate 56. The distance is also adjusted synchronously and kept to match the thickness of the metal sheet 7, so that the roller 64 can contact the upper and lower ends of the metal sheet 7. At the same time, the first extending plate 211 and the second extending plate 57 are also in contact with the upper and lower ends of the metal sheet 7, and the part of the connecting rod 66 is actually composed of two ends. One end connected by the bent rod 67 is fixed in length and connected to the screw block 63, and the other end is a telescopic rod style connecting the first extending plate 211 and the second extending plate 57, so that when the driving component 5 drives the extending plate and the receiving plate to clamp the metal sheet 7 and move, it will not be interfered with by the position of the screw block 63. The elastic bands 212 at both ends of the extending plates in the two vertical directions can produce horizontal and longitudinal expansion to maintain the sealing of the side of the metal sheet 7. The function of the bent rod 67 is to prevent the mounting frame 15 from interfering with the movement of the connecting rod 66, while also maintaining the connection relationship between the screw block 63, the first extending plate 211 and the second extending plate 57, so that the first extending plate 211 and the second extending plate 57 can clamp or release the metal sheet 7 through the unified adjustment of the second bidirectional screw 62.

[0036] In this embodiment, the driving assembly 5 also includes a second screw rod 54, the interior of the sliding frame 51 is rotatably mounted with the second screw rod 54 through a bearing, the moving block 55 is threadedly sleeved on the surface of the second screw rod 54, the top of the sliding frame 51 at the upper end of the connecting channel 3 is provided with a moving notch 52, the moving block 55 passes through the moving notch 52 and is fixed with a contact plate 53, the bottom of the gas cylinder 4 close to the laser grinding box 1 is fixed with a contact switch 44, the moving block 55 moves along the slide rail and the contact plate 53 contacts the contact switch 44, the gas cylinder 4 moves toward the laser An air suction pipe 43 is fixed to one end of the polishing box 1, an air hole 28 is opened on the top of the laser polishing box 1, and the air suction pipe 43 is connected to the air hole 28. Two delivery pipes 41 are fixed to the tail end of the air storage cylinder 4, and the bottom of the delivery pipe 41 is located at the top of the metal plate 7 and a nozzle 42 is fixed at the top position. The nozzle 42 corresponds to the upper and lower end surfaces of the metal plate 7 from both sides. A vacuum cleaner 11 is fixed to the front and rear end outer walls of the polishing box 1, and an air pump and an exhaust pump are installed inside the air storage cylinder 4, respectively. The air pump is connected to the air suction pipe 43, and the air pump is connected to the air pump. When the second receiving plate 56 and the second extending plate 57 in the channel 3 clamp the metal sheet 7 and move, the vacuum pump is turned on to draw the air in the laser processing box 2 into the air storage cylinder 4. Because the metal sheet 7 is clamped and sealed by the first receiving plate 210 and the first extending plate 211 in the delivery channel 21, it is convenient to maintain a sealed environment during the laser welding process. The second screw rod 54 is driven by the built-in motor, and the moving block 55 cooperates with the screw thread to slide along the slide rail. The second extending plate 57 and the second receiving plate 56 clamp the sheet and move, and are connected by the connecting rod 66. The first receiving plate 210 and the first extending plate 211 in the delivery channel 21 also pull the metal plate 7 outward until the contact plate 53 moves along the moving notch 52 and contacts the contact switch 44. The vacuum pump is turned off, the exhaust pump is turned on, and it is sent into the nozzle 42 through the delivery pipe 41. The nozzle 42 is tilted to correspond to the upper and lower surfaces of the metal plate 7, blowing away the debris and dust generated during the grinding process to avoid affecting the subsequent welding. At the same time, the vacuum cleaner 11 at the outer end of the grinding box 1 is turned on to suck away the floating dust and debris to avoid affecting the environment inside the grinding box 1.

[0037] When the device is used, the metal sheet 7 is fed into the inlet end of the grinding box 1. When the position of the screw block 63 and the roller 64 is adjusted, the distance between the first extending plate 211 and the second extending plate 57 extending from the first receiving plate 210 and the second receiving plate 56 is also adjusted synchronously, and kept adapted to the thickness of the metal sheet 7, so that the roller 64 can be in contact with the upper and lower ends of the metal sheet 7. At the same time, the first extending plate 211 and the second extending plate 57 are also in contact with the upper and lower ends of the metal sheet 7, and the part of the connecting rod 66 is actually composed of two ends, one end of which is connected to the screw block 63 by a fixed length through the bent rod 67, and the other end is a telescopic rod-style connection between the first extending plate 211 and the second extending plate 5 7. When the driving component 5 drives the extending plate and the receiving plate to clamp the metal plate 7 and move, it will not be interfered by the position of the screw block 63. The upper and lower surfaces are polished and deoxidized by the polishing rod 16 in the polishing box 1, and then sent into the laser processing box 2 through the connecting channel 3 for laser deep penetration welding. The first bidirectional screw 13 is driven by the motor at the top. The mounting bracket 15 moves by rotating the first bidirectional screw 13. The position of the polishing rod 16 is adjusted according to the thickness of the metal plate 7. The upper and lower surfaces of the metal plate 7 are polished. The first screw rod 25 driven by the built-in motor of the first slide rail 23 and the second slide rail 24 can adjust the X and Y axes of the laser device 27, and the electric push rod 26 can adjust the laser The height of the optical device 27 is adjusted according to the position of the metal sheet 7 that needs to be laser welded and the thickness of the metal sheet 7. An air pump and an exhaust pump are respectively installed inside the air storage cylinder 4, wherein the air pump is connected to the suction pipe 43. When the second receiving plate 56 and the second extending plate 57 in the connecting channel 3 clamp the metal sheet 7 and move, the air pump is turned on to draw the air in the laser processing box 2 into the air storage cylinder 4. Because the inside of the delivery channel 21 clamps the metal sheet 7 and maintains a seal through the first receiving plate 210 and the first extending plate 211, it is convenient to maintain a sealed environment during the laser welding process. The second screw rod 54 is driven by a built-in motor, and the moving block 55 cooperates with the screw thread. Sliding along the slide rail, the second extending plate 57 and the second receiving plate 56 clamp the plate and move. Through the connection of the connecting rod 66, the first receiving plate 210 and the first extending plate 211 in the delivery channel 21 also pull the metal plate 7 outward until the contact plate 53 moves along the moving notch 52 and contacts the contact switch 44. The vacuum pump is turned off, the exhaust pump is turned on, and the plate is sent into the nozzle 42 through the delivery pipe 41. The nozzle 42 is tilted to correspond to the upper and lower surfaces of the metal plate 7 to blow away the debris and dust generated during the grinding process to avoid affecting the subsequent welding. At the same time, the vacuum cleaner 11 at the outer end of the grinding box 1 is turned on to suck away the floating dust and debris to avoid affecting the environment inside the grinding box 1.

[0038] The basic principles, main features and advantages of the present invention are shown and described above. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0039] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An automated production line for continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment, comprising a polishing box (1), characterized in that: A laser processing box (2) is provided on one side of the polishing box (1), and both sides of the polishing box (1) and the laser processing box (2) are provided with an inlet and outlet (12), the inlet and outlet (12) between the polishing box (1) and the laser processing box (2) are fixed with a connecting channel (3), and the inlet and outlet (12) outside the laser processing box (2) are fixed with a delivery channel (21), the entrance of the polishing box (1) penetrates the metal plate (7), and the metal plate passes along the connecting channel (3), the laser processing box (2) and the delivery channel (21), the interior of the polishing box (1) is provided with a mounting frame (15) at the upper and lower ends of the metal plate (7), and a polishing rod (16) is installed inside the mounting frame (15) by means of a motor, and the polishing rod (16) contacts the top and bottom surfaces of the metal plate (7) respectively, and an air cylinder (4) is provided at the top of the connecting channel (3), and the two ends of the air cylinder (4) are fixed to the polishing box (1) and the bottom surfaces. The top of the laser processing box (2) and the top and bottom of the connecting channel (3) are provided with a driving assembly (5), the driving assembly (5) includes a sliding frame (51), the top and bottom of the connecting channel (3) are fixed with sliding frames (51), and the sliding frame (51) is internally slidably connected with a moving block (55), a second receiving plate (56) is fixed on the outer surface of the moving block (55), and the second receiving plate (56) is internally slidably plugged with a second extending plate (57), the second extending plate (57) is in sliding contact with the upper and lower ends of the metal plate (7), and the first receiving plate (210) is in sliding contact with the inner wall of the connecting channel (3), the inlet end of the polishing box (1) is provided with a conveying assembly (6), the conveying assembly (6) includes a roller (64), the inlet end of the polishing box (1) is located at the top and bottom of the metal plate (7) and is installed with a roller (64), the roller (64) is in contact with the upper and lower surfaces of the metal plate (7).

2. The automated production line for continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment according to claim 1 is characterized by: The conveying assembly (6) further comprises a fixed frame (61), both ends of the roller shaft (64) are provided with fixed frames (61), and the fixed frame (61) is fixed to the outer wall of the inlet end of the polishing box (1), a second bidirectional screw (62) is rotatably mounted inside the fixed frame (61) on one side of the roller shaft (64), and two screw blocks (63) are threadedly sleeved on the surface of the second bidirectional screw (62), and the roller shaft (64) is rotatably mounted on the screw blocks (63) corresponding to the straight line.

3. The automated production line for continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment according to claim 1 is characterized by: A first bidirectional screw (13) is rotatably mounted on one side of the mounting frame (15) inside the polishing box (1), and both ends of the mounting frame (15) are threadedly sleeved on the surface of the first bidirectional screw (13). A sliding rod (14) is fixed to the polishing box (1) on the other side of the mounting frame (15), and the other side of the mounting frame (15) is slidably sleeved on the sliding rod (14).

4. The automated production line for continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment according to claim 1 is characterized by: Two first slide rails (23) are fixed on the top inner wall of the laser processing box (2), and a second slide rail (24) perpendicular to the first slide rail (23) is slidably installed at the bottom of the first slide rail (23), and a first screw rod (25) is rotatably installed inside the second slide rail (24), a mounting seat is threadedly sleeved on the surface of the first screw rod (25), and electric push rods (26) are fixed on both sides of the mounting seat of the second slide rail (24), and a laser device (27) is fixed at the bottom of the electric push rod (26).

5. The automated production line for continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment according to claim 2 is characterized by: A third slide rail (29) is fixed on the top and bottom inner walls of the delivery channel (21); a first receiving plate (210) is slidably installed at the upper and lower ends of the delivery channel (21), and the first receiving plate (210) slides along the third slide rail (29); a first extension plate (211) is slidably inserted into the interior of the first receiving plate (210); the first extension plate (211) contacts the upper and lower surfaces of the metal plate (7); and elastic bands (212) are fixed on both sides of the first extension plate (211) and the second extension plate (57) corresponding to the metal plate (7).

6. The automated production line for continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment according to claim 1 is characterized by: The driving assembly (5) further comprises a second screw rod (54), the second screw rod (54) being rotatably mounted inside the sliding frame (51) via a bearing, the moving block (55) being threadedly sleeved on the surface of the second screw rod (54), and a moving notch (52) being provided at the top of the sliding frame (51) at the upper end of the connecting channel (3).

7. The automated production line for continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment according to claim 6 is characterized by: The movable block (55) passes through the movable notch (52) and is fixed with a contact plate (53); a contact switch (44) is fixed to the bottom of the air storage cylinder (4) on the side close to the laser polishing box (1); and after the movable block (55) moves along the slide rail, the contact plate (53) contacts the contact switch (44).

8. The automated production line for continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment according to claim 7 is characterized in that: An air intake pipe (43) is fixed to one end of the air storage cylinder (4) facing the laser polishing box (1), an air hole (28) is opened on the top of the laser polishing box (1), and the air intake pipe (43) is connected to the air hole (28). Two delivery pipes (41) are fixed to the tail end of the air storage cylinder (4), and the bottom of the delivery pipe (41) is located at the top of the metal plate (7) and a nozzle (42) is fixed at the top position, and the nozzle (42) corresponds to the upper and lower end surfaces of the metal plate (7) from both sides.

9. The automated production line for continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment according to claim 1 is characterized by: A dust collector (11) is fixed on the front and rear end outer walls of the polishing box (1).

10. The automated production line for continuous vacuum laser deep penetration welding and workpiece surface oxidation pretreatment according to claim 5, characterized in that: A connecting plate (65) is fixed to the outer side of the screw block (63), a connecting rod (66) is fixed between the first extending plate (211) and the second extending plate (57), and the outer end of the connecting rod (66) is fixedly connected to the connecting plate (65), and a bent rod (67) is fixed to the position of the connecting rod (66) located on the mounting frame (15).

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