Laser welding device of plate rolling structure

Abstract

The utility model relates to the technical field of laser welding, in particular to a laser welding device of a rolled plate structure, and solves the technical problems that a natural cooling mode is mainly adopted for rolled plate welding, so that the production efficiency of rolled plates is reduced; according to the technical scheme, the laser welding device of the plate rolling structure comprises a bottom plate, supporting legs, a workbench, a laser welding gun, a welding groove, a moving assembly, a clamping assembly and a cooling assembly; through cooperative work of the moving assembly, the clamping assembly and the cooling assembly, the laser welding gun can accurately move in the welding groove, welding operation of gaps of a rolled plate is efficiently completed, meanwhile, firm and stable clamping force can be provided for the rolled plate, it is guaranteed that the rolled plate cannot move or shake in the welding process, and the welding quality of the rolled plate is improved. Therefore, the welding precision and the quality of a rolled plate are greatly guaranteed, after welding is completed, the cooling assembly rapidly cools a welding seam, and thermal deformation caused by high temperature is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding, in particular to a laser welding device of a rolled plate structure. Background Art

[0002] The welding speed of laser welding is very fast, usually much higher than common methods such as arc welding or gas shielded welding, which greatly improves production efficiency. At the same time, the weld quality of laser welding is usually very high, with almost no defects such as pores and slag inclusions. Since the laser energy is uniform and stable, the laser welding machine can achieve uniform connection of welded parts of different thicknesses, materials and shapes, and the welds are flat, complete and beautiful.

[0003] In the current coil welding process, the steel plate is first rolled by a coiling machine, and then the workers place the rolled plates on a laser welding machine for welding. However, after the laser welding machine completes the welding of the coiled plates, the temperature of the weld will increase significantly. At present, in order to reduce the temperature of these welds, natural heat dissipation is mainly used for cooling. However, the cooling method takes a long time, which leads to a decrease in the production efficiency of the coiled plates.

[0004] Therefore, in view of the fact that the above-mentioned rolled plate welding mainly adopts natural cooling method, which leads to a decrease in the production efficiency of the rolled plate, a laser welding device with a rolled plate structure can be designed. Through the threaded transmission structure and the pneumatic telescopic structure, the rolled plate can be accurately welded while accelerating the cooling of the rolled plate, thereby improving the processing efficiency of the rolled plate. Utility Model Content

[0005] In order to overcome the problem that natural cooling is mainly used in coil welding, which leads to a decrease in the production efficiency of coils.

[0006] The technical solution of the utility model is: a laser welding device of a rolled plate structure, comprising a base plate, legs, a workbench, a laser welding gun, a welding groove, a moving assembly, a clamping assembly, and a cooling assembly; four groups of legs for support are fixedly connected to the lower end of the base plate, a workbench is installed on the upper end of the base plate, a welding groove is opened on the upper end of the workbench, the laser welding gun is installed at the front end of a moving seat in the moving assembly, a threaded transmission structure is provided in the moving assembly and is installed at the upper end of the workbench, a pneumatic telescopic structure is provided in the clamping assembly and is installed at the lower end of the workbench, and a spray structure is provided in the cooling assembly and is installed on the ground and located at the lower end of the base plate.

[0007] Preferably, the bottom plate is the basic part of the whole device, providing stable support. The workbench is the main operation area for coil welding. A welding groove is provided at the upper end of the workbench for the laser welding gun to weld the coil. The laser welding gun melts the edge of the coil by emitting a high-energy laser beam to achieve welding. A threaded transmission structure is provided in the moving component to control the movement of the laser welding gun on the workbench, so as to achieve precise movement of the laser welding gun in the welding groove. A pneumatic telescopic structure is provided in the clamping component, and its function is to fix and clamp the coil to be welded. A spray structure is provided in the cooling component, and its function is to cool the weld in time after welding is completed to reduce thermal deformation.

[0008] Preferably, the moving component includes a bracket, a rotating groove, and a servo motor; the bracket is composed of a column and a beam, and the column is fixedly connected to the upper end of the workbench, a groove is opened at the front end of the beam, and a rotating groove is installed on the left inner wall of the groove, and a servo motor is installed at the right end of the beam, and the servo motor is located on a mounting table set at the upper end of the workbench. The bracket is the basic structure of the moving component and provides an installation platform for other components. The function of the rotating groove is to provide a rotating interface, allowing the threaded rod to rotate therein while maintaining its stability. The servo motor is the power source of the moving component and drives the output shaft to perform precise rotational motion. The servo motor has the characteristics of high precision, high stability and high reliability, ensuring that the moving seat can move precisely in the direction of the axis of the threaded rod.

[0009] Preferably, the moving assembly also includes a threaded rod, a coupling, and a moving seat; a coupling is installed at the right end of the threaded rod and is connected to the output shaft of the servo motor through the coupling, the left end of the threaded rod is rotatably connected to the rotating groove, an internal thread that matches the external thread of the threaded rod is provided in the moving seat, the threaded rod is threadedly connected to the moving seat, the threaded rod is a transmission component of the moving assembly, which connects the servo motor and the moving seat, the outer surface of the threaded rod has threads for matching with the internal threads in the moving seat to realize the movement of the moving seat, and when the servo motor drives the threaded rod to rotate, the moving seat will move in a straight line along the threaded rod, thereby driving the laser welding gun to perform precise positioning and movement.

[0010] Preferably, the clamping assembly includes a cylinder and a fixed plate; two cylinders are symmetrically installed at the front and rear ends of the lower end of the workbench, and a fixed plate for fixing the rolled plate is fixedly connected to the left end of the workbench and is located at the lower end of the cylinder. The cylinder is the power source of the clamping assembly and is responsible for providing the force required to clamp and release the rolled plate. The cylinder controls the extension or retraction of the piston rod through changes in air pressure, thereby driving the movement of the clamp. The fixed plate is a plate-like structure located at the lower end of the cylinder and fixedly connected to the left end of the workbench. It is used to provide a stable support surface when the rolled plate is clamped, ensuring that the rolled plate will not be displaced during processing.

[0011] Preferably, the clamping assembly also includes a splint and a suction cup; a splint is installed at the lower end of the power output element of the cylinder, and a suction cup is provided at the lower end of the splint. The splint is used to directly contact and clamp the rolled plate, and the movement of the splint is controlled by the cylinder. When the piston rod of the cylinder is extended, the splint will move toward the fixed plate, thereby clamping the rolled plate. When the piston rod is retracted, the splint will release the rolled plate. The suction cup is used to enhance the adsorption force of the splint on the rolled plate. When the suction cup contacts the rolled plate, negative pressure is formed inside the suction cup by vacuuming or squeezing, thereby adsorbing the rolled plate, which can improve the stability of clamping.

[0012] Preferably, the cooling assembly includes a water pump and a wastewater tank; the wastewater tank is installed at the upper end of the base plate and located at the lower end of the fixed plate, the water pump is installed on the ground, a water tank is placed on the ground and located at the rear end of the water pump, the water tank is connected to the water inlet port of the water pump through a hose, the water pump is responsible for pumping the water in the water tank into the spray pipe, and the wastewater tank is used to collect wastewater generated during the spraying process to ensure a clean and hygienic working environment.

[0013] Preferably, the cooling assembly also includes a three-way water pipe, a nozzle, and a spray pipe; one end of the three-way water pipe is connected to the water outlet port of the water pump through a hose, and the other two ends of the three-way water pipe are connected to the spray pipe. There are two spray pipes and they are fixed to the lower end of the workbench symmetrically front and back through clamps. The nozzle is installed on the outer wall of the spray pipe, and the other two ends of the three-way water pipe are connected to the spray pipe to play a diversion role, ensuring that the cooling water can be evenly distributed to the two spray pipes. Nozzles are evenly distributed on the spray pipe for spraying cooling water to form a uniform cooling effect.

[0014] Beneficial effects of the utility model:

[0015] 1. Through the coordinated work of the moving component, the clamping component and the cooling component, the laser welding gun can move accurately in the welding groove and efficiently complete the welding operation of the rolled plate gap. At the same time, it can also provide a firm and stable clamping force for the rolled plate to ensure that the rolled plate will not be displaced or shaken during the welding process, thereby greatly ensuring the welding accuracy and the quality of the rolled plate. After the welding is completed, the cooling component quickly cools the weld, effectively reducing the thermal deformation caused by high temperature;

[0016] 2. When the suction cup contacts the rolled plate, negative pressure is formed inside the suction cup by means of vacuuming or squeezing, thereby adsorbing the rolled plate, which can improve the stability of clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The three-dimensional structure schematic diagram of the laser welding device of the rolled plate structure of the utility model is shown;

[0018] Figure 2 The front view schematic diagram of the laser welding device of the rolled plate structure of the utility model is shown;

[0019] Figure 3 The figure shows a schematic top view of a laser welding device for a rolled plate structure of the present invention;

[0020] Figure 4 What is shown is a three-dimensional structural schematic diagram of a moving assembly of a laser welding device for a rolled plate structure of the utility model;

[0021] Figure 5 What is shown is a schematic diagram of the three-dimensional structure of the clamping assembly of the laser welding device of the plate rolling structure of the utility model;

[0022] Figure 6 What is shown is a schematic diagram of the three-dimensional structure of the cooling assembly of the laser welding device of the rolled plate structure of the present invention.

[0023] Explanation of the reference numerals: 1. base plate; 2. support leg; 3. workbench; 4. laser welding gun; 5. welding slot; 601. bracket; 602. rotating slot; 603. servo motor; 604. threaded rod; 605. coupling; 606. moving seat; 701. cylinder; 702. fixed plate; 703. splint; 704. suction cup; 801. water pump; 802. wastewater tank; 803. three-way water pipe; 804. nozzle; 805. spray pipe. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] See also Figure 1-3The utility model provides an embodiment: a laser welding device of a rolled plate structure, comprising a base plate 1, legs 2, a workbench 3, a laser welding gun 4, a welding groove 5, a moving assembly, a clamping assembly, and a cooling assembly; the lower end of the base plate 1 is fixedly connected with four groups of legs 2 for support, the upper end of the base plate 1 is installed with a workbench 3, the upper end of the workbench 3 is provided with a welding groove 5, the laser welding gun 4 is installed at the front end of a moving seat 606 in the moving assembly, a threaded transmission structure is provided in the moving assembly and is installed at the upper end of the workbench 3, a pneumatic telescopic structure is provided in the clamping assembly and is installed at the lower end of the workbench 3, a spray structure is provided in the cooling assembly and is installed on the ground and located at the lower end of the base plate 1, and the bottom Plate 1 is the base of the whole device, providing stable support. The workbench 3 is the main operation area for coil welding. A welding groove 5 is provided at the upper end of the workbench 3 for the laser welding gun 4 to weld the coil. The laser welding gun 4 melts the edge of the coil by emitting a high-energy laser beam to achieve welding. A threaded transmission structure is provided in the moving component to control the movement of the laser welding gun 4 on the workbench 3, so as to achieve precise movement of the laser welding gun 4 in the welding groove 5. A pneumatic telescopic structure is provided in the clamping component to fix and clamp the coil to be welded. A spray structure is provided in the cooling component to timely cool the weld after welding is completed to reduce thermal deformation.

[0026] See also Figure 4In this embodiment, the moving assembly includes a bracket 601, a rotating groove 602, and a servo motor 603; the bracket 601 is composed of a column and a beam, and the column is fixedly connected to the upper end of the workbench 3, a groove is provided at the front end of the beam, and a rotating groove 602 is installed on the left inner wall of the groove, and a servo motor 603 is installed at the right end of the beam, and the servo motor 603 is located on the mounting table set at the upper end of the workbench 3, and the moving assembly also includes a threaded rod 604, a coupling 605, and a moving seat 606; a coupling 605 is installed at the right end of the threaded rod 604 and is connected to the output shaft of the servo motor 603 through the coupling 605, the left end of the threaded rod 604 is rotatably connected to the rotating groove 602, and an internal thread matching the external thread of the threaded rod 604 is provided in the moving seat 606, and the threaded rod 604 is threadedly connected to the moving seat 606, and the bracket 601 is the basic structure of the moving assembly, Provide an installation platform for other components. The function of the rotating groove 602 is to provide a rotating interface, allowing the threaded rod 604 to rotate therein while maintaining its stability. The servo motor 603 is the power source of the mobile component, driving the output shaft to perform precise rotational movement. The servo motor 603 has the characteristics of high precision, high stability and high reliability, ensuring that the mobile seat 606 can move accurately along the axis direction of the threaded rod 604. The threaded rod 604 is a transmission component of the mobile component, which connects the servo motor 603 and the mobile seat 606. The outer surface of the threaded rod 604 has a thread for matching with the internal thread in the mobile seat 606 to achieve the movement of the mobile seat 606. When the servo motor 603 drives the threaded rod 604 to rotate, the mobile seat 606 will move in a straight line along the threaded rod 604, thereby driving the laser welding gun 4 to perform precise positioning and movement.

[0027] See also Figure 5-6In this embodiment, the clamping assembly includes a cylinder 701 and a fixed plate 702; two cylinders 701 are symmetrically installed at the front and back ends of the lower end of the workbench 3, and a fixed plate 702 for fixing the rolled plate is fixedly connected to the left end of the workbench 3 and is located at the lower end of the cylinder 701. The clamping assembly also includes a clamping plate 703 and a suction cup 704; a clamping plate 703 is installed at the lower end of the power output element of the cylinder 701, and a suction cup 704 is provided at the lower end of the clamping plate 703. The cylinder 701 is the power source of the clamping assembly and is responsible for providing the force required for clamping and releasing the rolled plate. The cylinder 701 controls the extension or retraction of the piston rod through the change of air pressure, thereby driving The movement of the movable clamping plate 703, the fixed plate 702 is a plate-like structure located at the lower end of the cylinder 701 and fixedly connected to the left end of the workbench 3. It is used to provide a stable supporting surface when the rolled plate is clamped to ensure that the rolled plate will not be displaced during the processing. The clamping plate 703 is used to directly contact and clamp the rolled plate. The movement of the clamping plate 703 is controlled by the cylinder 701. When the piston rod of the cylinder 701 extends, the clamping plate 703 will move toward the fixed plate 702 to clamp the rolled plate. When the piston rod is retracted, the clamping plate 703 will release the rolled plate. The suction cup 704 is used to enhance the adsorption force of the clamping plate 703 on the rolled plate. When the suction cup 704 is in contact with the rolled plate When the plate contacts, negative pressure is formed inside the suction cup 704 by means of air extraction or extrusion, so as to adsorb the rolled plate, which can improve the stability of clamping. The cooling component includes a water pump 801 and a waste water tank 802; the waste water tank 802 is installed at the upper end of the bottom plate 1 and located at the lower end of the fixed plate 702, the water pump 801 is installed on the ground, a water tank is placed on the ground and is located at the rear end of the water pump 801, and the water tank is connected to the water inlet port of the water pump 801 through a hose. The cooling component also includes a three-way water pipe 803, a nozzle 804, and a spray pipe 805; one end of the three-way water pipe 803 is connected to the water outlet port of the water pump 801 through a hose, and the three-way water pipe 80 The other two ends of the three-way water pipe 803 are connected to the spray pipe 805. There are two spray pipes 805, which are fixedly connected to the lower end of the workbench 3 symmetrically through the clamps. The nozzle 804 is installed on the outer wall of the spray pipe 805. The water pump 801 is responsible for pumping the water in the water tank to the spray pipe 805. The waste water pool 802 is used to collect the waste water generated during the spraying process to ensure the cleanliness and hygiene of the working environment. The other two ends of the three-way water pipe 803 are connected to the spray pipe 805 to play a diversion role, ensuring that the cooling water can be evenly distributed to the two spray pipes 805. The spray pipes 805 are evenly distributed with nozzles 804 for spraying cooling water to form a uniform cooling effect.

[0028] When welding, the worker first places the two ends of the rolled plate securely on the fixed plate 702. Then, the cylinder 701 drives the clamping plate 703 to slowly descend, and the suction cup 704 then tightly absorbs the rolled plate, effectively preventing the rolled plate from shaking during the welding process. Then, the servo motor 603 and the laser welding gun 4 are started. The servo motor 603 drives the threaded rod 604 to rotate, so that the moving seat 606 accurately drives the laser welding gun 4 to move in the preset welding groove 5, and the welding operation of the rolled plate is successfully completed.

[0029] When welding is completed, the water pump 801 is started immediately, which quickly pumps the cooling water in the water tank to the spray pipe 805. Then, the cooling water is evenly sprayed on the welding point through the nozzle 804 on the spray pipe 805, thereby accelerating the cooling process of the rolled plate.

[0030] Through the above steps, through the coordinated work of the moving component, the clamping component and the cooling component, the laser welding gun 4 can accurately move in the welding groove 5 and efficiently complete the welding operation of the rolled plate gap. At the same time, it can also provide a firm and stable clamping force for the rolled plate to ensure that the rolled plate will not be displaced or shaken during the welding process, thereby greatly ensuring the welding accuracy and the quality of the rolled plate. After the welding is completed, the cooling component quickly cools the weld, effectively reducing the thermal deformation caused by high temperature, and solving the problem that the rolled plate welding mainly adopts the natural cooling method, which leads to a decrease in the production efficiency of the rolled plate.

[0031] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A laser welding device for a rolled plate structure, comprising a base plate (1), a support leg (2), a workbench (3), a laser welding gun (4), and a welding groove (5); characterized in that: The invention also comprises a moving component, a clamping component and a cooling component; the lower end of the base plate (1) is fixedly connected with four groups of supporting legs (2); the upper end of the base plate (1) is provided with a workbench (3); the upper end of the workbench (3) is provided with a welding groove (5); a laser welding gun (4) is installed at the front end of a moving seat (606) in the moving component; a threaded transmission structure is provided in the moving component and is installed at the upper end of the workbench (3); a pneumatic telescopic structure is provided in the clamping component and is installed at the lower end of the workbench (3); a spray structure is provided in the cooling component and is installed on the ground and located at the lower end of the base plate (1).

2. The laser welding device for rolled plate structure according to claim 1, characterized in that: The moving assembly comprises a bracket (601), a rotating groove (602), and a servo motor (603); the bracket (601) is composed of a column and a crossbeam, and the column is fixedly connected to the upper end of the workbench (3); a groove is provided at the front end of the crossbeam, and the rotating groove (602) is installed on the left inner wall of the groove; the servo motor (603) is installed at the right end of the crossbeam, and the servo motor (603) is located on a mounting table arranged at the upper end of the workbench (3).

3. The laser welding device for rolled plate structure according to claim 2, characterized in that: The moving assembly further comprises a threaded rod (604), a coupling (605), and a moving seat (606); the right end of the threaded rod (604) is provided with a coupling (605) and is connected to the output shaft of the servo motor (603) via the coupling (605); the left end of the threaded rod (604) is rotatably connected to the rotating groove (602); the moving seat (606) is provided with an internal thread that matches the external thread of the threaded rod (604); and the threaded rod (604) is threadedly connected to the moving seat (606).

4. The laser welding device for a rolled plate structure according to claim 1, characterized in that: The clamping assembly comprises a cylinder (701) and a fixing plate (702); two cylinders (701) are symmetrically mounted at the front and rear ends of the lower end of the workbench (3); a fixing plate (702) for fixing the rolled plate is fixedly connected to the left end of the workbench (3) and is located at the lower end of the cylinder (701).

5. The laser welding device for rolled plate structure according to claim 4, characterized in that: The clamping assembly further comprises a clamping plate (703) and a suction cup (704); the clamping plate (703) is installed at the lower end of the power output element of the cylinder (701), and the suction cup (704) is arranged at the lower end of the clamping plate (703).

6. The laser welding device for rolled plate structure according to claim 4, characterized in that: The cooling assembly comprises a water pump (801) and a wastewater tank (802); the wastewater tank (802) is installed at the upper end of the base plate (1) and located at the lower end of the fixed plate (702); the water pump (801) is installed on the ground; a water tank is placed on the ground and located at the rear end of the water pump (801); the water tank is connected to the water inlet port of the water pump (801) via a hose.

7. The laser welding device for a rolled plate structure according to claim 6, characterized in that: The cooling assembly further comprises a three-way water pipe (803), a nozzle (804), and a spray pipe (805); one end of the three-way water pipe (803) is connected to the water outlet port of the water pump (801) via a hose, and the other two ends of the three-way water pipe (803) are connected to the spray pipe (805); there are two spray pipes (805) which are fixedly connected to the lower end of the workbench (3) symmetrically front and back via a clamp, and the nozzle (804) is mounted on the outer wall of the spray pipe (805).

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