Protective gas flow guide device for laser remelting

Abstract

The utility model relates to the technical field of laser remelting, and discloses a protective gas flow guide device for laser remelting, which comprises a flow guide shell and a lifting seat, and the lifting seat is connected to the bottom end of the flow guide shell and is arranged close to the gas inlet end of the flow guide shell; the air inlet end of the flow guide shell is connected with protective gas supply equipment, a plurality of flow guide blades are rotationally arranged at the air outlet end of the flow guide shell, and the angles of the flow guide blades adapt to the laser operation direction. The lifting seat is adjusted to a preset height, so that the air outlet end of the flow guide shell adapts to the height of a workpiece to be machined and the height of the cooling medium box, protective gas flowing out of the flow guide shell is located between a laser head and the workpiece, and smoke dust and splashing powder are prevented from entering a laser channel; along with the movement of the laser head, the angle of the guide vane is adjusted, so that the guide vane can adapt to the working position of the laser head, protective gas flow intensively covers a remelting area, the blocking effect on smoke dust in the working area of the laser head is improved, and the using amount of protective gas is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser remelting technical field, concretely relates to a protective gas flow guide device for laser remelting. BACKGROUND

[0002] Adopt laser remelting method can be remanufactured to aluminum matrix composite material, and the melt is melted through the scanning irradiation of laser beam during the laser remelting process, a large amount of smoke, powder splashing and overflow are produced during the laser operation process, enter the laser channel of laser head, cause laser head damage, and the pore and rust point appear on the surface of the substrate after cladding.

[0003] In the prior art, the utility model discloses a kind of equipment for laser remelting processing aluminum matrix composite material, including base, support, movable platform, argon pipe, optical cable and laser source, movable platform is movably arranged on base, the upper end surface of movable platform is equipped with cooling medium box, cooling medium is contained in cooling medium box, one end of argon pipe is communicated with external argon source, the other end of argon pipe is close to cooling medium box;Laser head and the upper and lower positions of cooling medium box correspond, one end of optical cable is connected with laser head, and the other end of optical cable is connected with laser source.This equipment uses high-purity argon as the protective gas of laser processing molten pool, reduces smoke and powder splashing, but in actual use process, protective gas blowing position cannot be adjusted to adapt laser head operating position, and the blocking effect of smoke is not ideal.

[0004] Therefore, it is necessary to propose a protective gas flow guide device for laser remelting to at least partially solve the problems existing in the prior art. UTILITY MODEL CONTENTS

[0005] A series of simplified concepts are introduced in the utility model contents part, which will be further described in detail in the specific embodiment part. The utility model contents part of the utility model does not mean trying to limit the key features and necessary technical features of the claimed technical solution, and does not mean trying to determine the protection scope of the claimed technical solution.

[0006] To solve the above problems, the utility model discloses a kind of protective gas flow guide device for laser remelting;It includes:

[0007] Flow guide shell and lifting seat, lifting seat is connected to the bottom end of flow guide shell and is close to its air inlet end setting;Flow guide shell air inlet end is connected with protective gas supply equipment, and a plurality of flow guide vanes are rotationally arranged at the air outlet end of flow guide shell, and the angle of flow guide vane is adapted to the direction of laser operation.

[0008] Preferably, the air inlet end of the flow guide shell is provided with a communication pipe, and the communication pipe is connected with the protective gas supply equipment through a pipeline.

[0009] Preferably, the lifting seat comprises a base, a lifting hydraulic cylinder and a mounting ring, the lifting hydraulic cylinder is vertically connected to the base, the mounting ring is connected to the top end of the lifting hydraulic cylinder, and the mounting ring is sleeved outside the communicating pipe.

[0010] Preferably, the inner wall of the mounting ring is connected with a rubber shock-absorbing ring.

[0011] Preferably, the gas outlet end of the flow guide shell is rectangular, and the diameter of the gas outlet port of the flow guide shell is larger than the diameter of the gas inlet port.

[0012] Preferably, the inner wall of the flow guide shell is connected with an airflow dispersing plate, and a plurality of airflow dispersing holes are uniformly arranged on the airflow dispersing plate.

[0013] Preferably, the end of the flow guide vane away from the gas outlet port of the flow guide shell is hingedly connected to the inner wall of the flow guide shell, and a plurality of flow guide vanes are uniformly arranged along the length direction of the rectangular gas outlet port of the flow guide shell.

[0014] Preferably, a linkage rod is hingedly connected between adjacent flow guide vanes.

[0015] Preferably, the side wall of the flow guide shell is hingedly provided with an adjusting cylinder, the output rod of the adjusting cylinder is hingedly connected to one of the flow guide vanes, and the hinge point is close to the gas outlet port of the flow guide shell.

[0016] Preferably, the upper and lower surfaces of the flow guide shell are arranged in parallel with the laser remelting table surface.

[0017] Compared with the prior art, the utility model at least has the following beneficial effects:

[0018] The utility model provides a kind of protective gas flow guide device for laser remelting,

[0019] The lifting seat provides support for the flow guide shell, and the lifting seat is adjusted to a preset height, so that the gas outlet end of the flow guide shell is adapted to the height of the workpiece to be processed and the height of the cooling medium box, and the protective gas flowing in the flow guide shell is located between the laser head and the workpiece, so that smoke and flying powder are prevented from entering the laser channel; during laser remelting operation, the angle of the flow guide vane is adjusted as the laser head moves, so that the flow guide vane can adapt to the operating position of the laser head, and the protective gas flow is concentrated and covers the remelting area, thereby improving the blocking effect of smoke on the operating area of the laser head and reducing the amount of protective gas used.

[0020] The protective gas flow guide device for laser remelting has the other advantages, objects and features of the utility model, which will be partially illustrated in the following description, and partially understood by those skilled in the art through research and practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the specific embodiments or the prior art of the present application, the drawings required to be used in the description of the specific embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings described in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0022] Figure 1 It is a structural schematic diagram of the present application.

[0023] Figure 2 It is a sectional structural schematic diagram of the mounting ring in the present application.

[0024] Figure 3 It is a sectional structural schematic diagram of the flow guide shell in the present application.

[0025] Figure 4 It is a sectional structural schematic diagram of the flow guide shell in the present application (inclined flow guide blades).

[0026] Figure 5 It is a structural schematic diagram of the present application Figure 3 A local enlarged structural schematic diagram of the present application

[0027] In the figure: 1. flow guide shell; 2. flow guide blade; 3. communication pipe; 4. base; 5. lifting hydraulic cylinder; 6. mounting ring; 7. rubber shock absorbing ring; 8. airflow dispersing plate; 9. airflow dispersing hole; 10. linkage rod; 11. adjusting cylinder. DETAILED DESCRIPTION

[0028] The technical solutions of the present application will be described in detail below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort belong to the scope of protection of the present application.

[0029] EMBODIMENT

[0030] The present application will be further described below with reference to the drawings.

[0031] As Figures 1-5 shown, the protective gas flow guide device for laser remelting provided by the present embodiment comprises:

[0032] A flow guide shell 1 and a lifting base, the lifting base is connected to the bottom end of the flow guide shell 1 and is arranged close to the air inlet end thereof; the air inlet end of the flow guide shell 1 is connected with a protective gas supply device, and the air outlet end of the flow guide shell 1 is rotatably provided with a plurality of flow guide blades 2, the angle of the flow guide blades 2 is adapted to the direction of laser operation.

[0033] The working principle and beneficial effects of the utility model are as follows:

[0034] The device is used in the laser remelting equipment, and the specific structure of the equipment is the prior art, and can refer to the equipment for laser remelting processing of aluminum-based composite material disclosed in the utility model patent with the application number CN201921709788.8. When the device is used, the lifting seat is installed on the table top of the laser remelting equipment, the lifting seat provides support for the flow guide shell 1, the lifting seat is adjusted to the preset height, the gas outlet end of the flow guide shell 1 is adapted to the height of the workpiece to be processed and the height of the cooling medium box, the protective gas flowing out of the flow guide shell 1 is located between the laser head and the workpiece, the smoke and the splashed powder are blocked from entering the laser channel, and the protective gas can be set as argon; during the laser remelting operation, the angle of the flow guide vane 2 is adjusted along with the movement of the laser head, so that the flow guide vane 2 can adapt to the operation position of the laser head, the protective gas flow is concentrated and covered on the remelting area, the blocking effect of the smoke on the operation area of the laser head is improved, and the amount of the protective gas is reduced.

[0035] In one embodiment, the flow guide shell 1 is provided with a communication pipe 3 connected with the protective gas supply device through a pipeline.

[0036] The lifting seat comprises a base 4, a lifting hydraulic cylinder 5 and a mounting ring 6, the lifting hydraulic cylinder 5 is vertically connected to the base 4, and the mounting ring 6 is connected to the top end of the lifting hydraulic cylinder 5 and is sleeved outside the communication pipe 3.

[0037] The inner wall of the mounting ring 6 is connected with a rubber shock-absorbing ring 7.

[0038] The working principle and beneficial effects of the above technical solution are as follows:

[0039] When the lifting seat is used, the base 4 is fixed on the equipment table top through bolts, the communication pipe 3 of the gas inlet end of the flow guide shell 1 is installed through the mounting ring 6, thereby providing stable support for the flow guide shell 1 and reducing the shaking caused by the airflow flow and the blowing pressure in the flow guide shell 1; the lifting hydraulic cylinder 5 is started through the controller, so that the rod part of the lifting hydraulic cylinder 5 is extended or retracted, the mounting ring 6 is lifted or lowered, the height of the flow guide shell 1 is adjusted, different workpiece heights are adapted, the blowing range is ensured to be accurate, and the rubber shock-absorbing ring 7 is provided, so that the shock-absorbing effect is achieved during the blowing process of the protective gas, and the installation stability of the flow guide shell 1 is improved.

[0040] In one embodiment, the gas outlet end of the flow guide shell 1 is set as a rectangle, and the diameter of the gas outlet end of the flow guide shell 1 is greater than the diameter of the gas inlet end.

[0041] The upper and lower surfaces of the flow guide shell 1 are arranged in parallel with the laser remelting table top.

[0042] The working principle and beneficial effects of the above technical solutions are:

[0043] The flow guide shell 1 is arranged in a flat structure parallel to the laser remelting table, and the protective gas in the gas inlet pipeline is uniformly sprayed in the horizontal direction after passing through the cavity of the flow guide shell 1 and the rectangular gas outlet, which is helpful to form a horizontal airflow barrier and better cover the laser remelting area, effectively blocking smoke and splashed powder.

[0044] In one embodiment, the inner wall of the flow guide shell 1 is connected with a gas flow dispersion plate 8, and a plurality of gas flow dispersion holes 9 are uniformly arranged on the gas flow dispersion plate 8.

[0045] The working principle and beneficial effects of the above technical solutions are:

[0046] The protective gas passes through the gas flow dispersion plate 8 in the flow guide shell 1 and flows out through the uniformly distributed gas flow dispersion holes 9, so that the protective gas is uniformly dispersed.

[0047] In one embodiment, the end of the flow guide vane 2 away from the gas outlet of the flow guide shell 1 is hinged to the inner wall of the flow guide shell 1, and a plurality of flow guide vanes 2 are uniformly arranged along the length direction of the rectangular gas outlet of the flow guide shell 1.

[0048] The adjacent flow guide vanes 2 are hinged with a linkage rod 10.

[0049] The side wall of the flow guide shell 1 is hingedly provided with an adjusting cylinder 11, the output rod of the adjusting cylinder 11 is hingedly connected with one of the flow guide vanes 2, and the hinge point is close to the gas outlet of the flow guide shell 1.

[0050] The working principle and beneficial effects of the above technical solutions are:

[0051] During the laser remelting operation, as the laser head moves, the controller starts the adjusting cylinder 11 to extend or retract, the output rod of the adjusting cylinder 11 drives one of the flow guide vanes 2 to rotate, and the flow guide vane 2 drives the adjacent flow guide vanes 2 to rotate through the linkage rod 10, thereby realizing the synchronous rotation of the plurality of flow guide vanes 2, so that the flow guide vanes 2 are inclined, and the protective gas can be blown towards the remelting area above the laser head under the guidance of the flow guide vanes 2, so that the protective gas can better cover the remelting area above, effectively blocking smoke and splashed powder; solve the problem that the spraying direction is fixed, and when the laser head moves, the smoke blocking effect of the edge part is poor, at the same time, the spraying range is more concentrated, the amount of protective gas is reduced, and the operation cost is reduced.

[0052] In the description of the utility model, it is understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0053] Obviously, the above embodiments are only examples for clearly illustrating, and are not limited to the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A shielding gas flow guide device for laser remelting, characterized by, The utility model relates to a laser processing device, including: A guide shell (1) and a lifting seat, the lifting seat is connected to the bottom end of the guide shell (1) and is arranged close to the air inlet end thereof; The air inlet end of the guide shell (1) is connected with a protective gas supply device, and a plurality of guide vanes (2) are rotatably arranged at the air outlet end of the guide shell (1), and the angle of the guide vanes (2) is adapted to the direction of laser operation.

2. The shielding gas flow guide for laser remelting according to claim 1, characterized in that The air inlet end of the guide shell (1) is provided with a communication pipe (3), and the communication pipe (3) is connected with the protective gas supply device through a pipeline.

3. The shielding gas flow guide for laser remelting according to claim 2, characterized in that The lifting seat comprises a base (4), a lifting hydraulic cylinder (5) and a mounting ring (6), the lifting hydraulic cylinder (5) is vertically connected to the base (4), the mounting ring (6) is connected to the top end of the lifting hydraulic cylinder (5), and the mounting ring (6) is sleeved outside the communication pipe (3).

4. The shielding gas flow guide for laser remelting according to claim 3, characterized in that The inner wall of the mounting ring (6) is connected with a rubber shock-absorbing ring (7).

5. The shielding gas flow guide for laser remelting according to claim 1, wherein The air outlet end of the guide shell (1) is arranged in a rectangular shape, and the diameter of the air outlet end of the guide shell (1) is larger than that of the air inlet end.

6. The shielding gas flow guide for laser remelting according to claim 1, wherein The inner wall of the guide shell (1) is connected with an airflow dispersing plate (8), and a plurality of airflow dispersing holes (9) are uniformly arranged on the airflow dispersing plate (8).

7. The shielding gas flow guide for laser remelting according to claim 5, wherein The end of the guide vane (2) away from the air outlet of the guide shell (1) is hingedly connected to the inner wall of the guide shell (1), and a plurality of guide vanes (2) are uniformly arranged along the length direction of the rectangular air outlet of the guide shell (1).

8. The shielding gas flow guide for laser remelting according to claim 7, characterized in that A linkage rod (10) is hingedly connected between adjacent guide vanes (2).

9. The shielding gas flow guide for laser remelting according to claim 8, characterized in that An adjusting cylinder (11) is hingedly arranged on the side wall of the guide shell (1), the output rod of the adjusting cylinder (11) is hingedly connected to one of the guide vanes (2), and the hinge point is close to the air outlet of the guide shell (1).

10. The shielding gas flow guide for laser remelting according to claim 1, wherein The upper and lower surfaces of the guide shell (1) are arranged in parallel with the laser remelting table surface.

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