A laser welding device for self-cleaning of soot

Abstract

The application discloses a kind of laser welding devices of smoke self-purification, belong to laser welding field, including workbench, the workbench top is provided with sliding support frame, the sliding support frame front is provided with laser welding head, the workbench top is opened with accommodating groove and the accommodating groove inner surface is slidably connected with fender, the fender left and right sides are provided with smoke suction component, the smoke suction component includes lifting seat, the lifting seat is fixedly connected with fender outer surface, and electric push rod is fixedly connected above the lifting seat.The application is concentrated by setting fender to smoke when part welding, fender normal state is retracted state, to ensure the flatness of workbench, by the rising of fender of smoke suction component, it will also drive the air suction pipe to be close to middle, until it is aligned with the hole on fender, with the effect of smoke absorption.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of laser welding, in particular, to a laser welding device with self-purification of smoke dust. BACKGROUND

[0002] Laser welding is a kind of high-efficiency precision welding method using high-energy density laser beam as heat source. Laser welding is one of the important aspects of laser material processing technology application. By controlling the width, energy, peak power and repetition frequency of laser pulse and other parameters, the workpiece is melted to form a specific molten pool. Due to its unique advantages, it has been successfully applied to precision welding of micro and small parts.

[0003] The patent document with publication number CN105364310A discloses a laser welding device with smoke purification function. The present application provides a laser welding device with self-purification of smoke dust, which comprises a laser welding gun, the lower end of the laser welding gun is provided with a laser welding head, the lower side of the laser welding head is provided with a workbench, the workbench is provided with a groove for placing workpieces, and the sidewalls on both sides of the groove are provided with suction pipes.

[0004] In the above-mentioned application file, the workpiece is placed in the groove to make the smoke more concentrated during welding. However, the groove will limit the placement of the workpiece. The fixed setting of the groove will make it inconvenient to place large workpieces. It is not convenient to set the groove area to concentrate the smoke only when small parts need to be welded. It is not convenient to adapt to different workpieces when absorbing smoke. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a laser welding device with self-purification of smoke dust, which solves the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides a laser welding device with self-purification of smoke dust, which comprises a workbench, a sliding support frame is arranged above the workbench, a laser welding head is arranged on the front surface of the sliding support frame, a containing groove is formed in the upper surface of the workbench, and a baffle plate is slidably connected to the inner surface of the containing groove, a smoke suction assembly is arranged on the left and right sides of the baffle plate, the smoke suction assembly comprises a lifting seat, the lifting seat is fixedly connected to the outer surface of the baffle plate, an electric push rod is fixedly connected to the upper surface of the lifting seat, the electric push rod is fixedly connected to the top of the inner surface of the sliding support frame, a limiting sleeve is fixedly connected to the upper surface of the workbench, a sliding frame is slidably connected to the inner surface of the limiting sleeve, a moving frame is fixedly connected to the left end of the sliding frame, a suction pipe is fixedly connected to the upper surface of the moving frame, a spring is fixedly connected between the inner surface of the sliding frame and the limiting sleeve, a steel wire rope is connected by a rope between the inner surface of the sliding frame and the lifting seat, a roller is movably attached to the upper surface of the steel wire rope, first support pieces are rotatably connected to the front and rear surfaces of the roller, and the first support pieces are fixedly connected to the upper surface of the workbench.

[0007] Preferably, the workbench is fixedly installed with an air suction fan on the left and right sides, and the air suction fan is connected with the air suction pipe.

[0008] Preferably, the workbench is fixedly connected with a supporting leg below.

[0009] Preferably, the spray assembly is arranged above the baffle plate, and the spray assembly comprises a supporting plate, the supporting plate is fixedly connected with a sliding support frame on the left side, a sponge pad is fixedly connected with the supporting plate on the left side, a second supporting piece is fixedly connected with the supporting plate on the left side, a water inlet pipe is penetratingly and rotatably connected with the front of the second supporting piece, a pipe rotary joint is fixedly connected with the rear end of the water inlet pipe, a spray head is fixedly connected with the right side of the water inlet pipe, a second gear is fixedly connected with the front of the water inlet pipe, a first gear is engaged below the second gear, the first gear is rotatably connected with the front of the second supporting piece, a second hydraulic chamber is fixedly connected with the left side of the sliding support frame, a second hydraulic rod is slidingly connected with the inner surface of the second hydraulic chamber, a connecting block is fixedly connected with the upper end of the second hydraulic rod, a rack is fixedly connected behind the connecting block, the rack is slidingly connected with the left side of the sliding support frame, and the rack is engaged with the right side of the first gear.

[0010] Preferably, the spray assembly further comprises a mounting plate, the mounting plate is hingedly connected with the right side of the workbench, a first hydraulic chamber is fixedly connected above the mounting plate, the first hydraulic chamber is connected with the second hydraulic chamber through pipelines, a first hydraulic rod is slidingly connected with the inner surface of the first hydraulic chamber, a connecting piece is hingedly connected with the upper end of the first hydraulic rod, and the connecting piece is fixedly connected with the right end of the sliding frame.

[0011] Preferably, a water squeezing assembly is arranged below the water inlet pipe, the water squeezing assembly comprises a squeezing block, the squeezing block is fixedly connected above the water inlet pipe, a water receiving groove is fixedly connected with the left side of the sliding support frame, and a water guide block is fixedly connected below the supporting plate.

[0012] Preferably, the water squeezing assembly further comprises a water storage tank, the water storage tank is fixedly connected behind the workbench, and a water conveying pipe is connected between the rear end of the water receiving groove and the water storage tank through pipelines.

[0013] Preferably, a valve is fixedly connected below the water storage tank.

[0014] The application has the advantages that:

[0015] 1. The baffle plate is arranged to concentrate the smoke gas during welding of parts, and the baffle plate is in a retracted state in a normal state, so as to ensure the flatness of the workbench, the rising of the baffle plate drives the air suction pipe to move towards the middle at the same time through the smoke suction assembly, until the air suction pipe is aligned with the hole on the baffle plate, and the smoke gas can be easily absorbed.

[0016] 2、The present application is through the setting of spray assembly comes welded parts cooling dust removal, spray assembly in the spray head normal state is covered by sponge block, in order to facilitate the protection of the spray head, suction assembly driven suction pipe to the middle close, also will drive the spray head to rotate to the parts on the workbench, has the effect of facilitating the cooling of parts dust removal.

[0017] 3、The present application through the spray head rotation, also will drive the water squeezing assembly extruding sponge block, so as to squeeze out the water in the sponge block and collect, has the effect of facilitating the use of the spray head in the process of excess water seepage recycling. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which form a part of this application, are intended to provide further understanding of the application and are incorporated herein in their entirety. The following detailed description and specifically pointed out the embodiments of the application along with examples, and the accompanying drawings are intended to explain the present application. The drawings in the accompanying drawings:

[0019] Figure 1 is the overall structure of the present application schematic diagram;

[0020] Figure 2 is the overall structure of the present application bottom view;

[0021] Figure 3 is the overall structure of the present application left view;

[0022] Figure 4 is the overall structure of the present application shield state schematic diagram;

[0023] Figure 5 is the overall structure of the present application shield state top view;

[0024] Figure 6 is the overall structure of the present application Figure 1 structure in A enlarged schematic diagram;

[0025] Figure 7 is the overall structure of the present application Figure 3 structure in B enlarged schematic diagram;

[0026] Figure 8 is the overall structure of the present application Figure 3 structure in C enlarged schematic diagram.

[0027] In the above drawings,

[0028] 1, workbench; 2, sliding support frame; 3, laser welding head; 4, smoke suction assembly; 401, first support piece; 402, lifting seat; 403, electric push rod; 404, limiting sleeve; 405, sliding frame; 406, moving frame; 407, air suction pipe; 408, spring; 409, steel wire rope; 410, roller; 5, guard plate; 6, air suction fan; 7, supporting leg; 8, spraying assembly; 801, support plate; 802, sponge pad; 803, second support piece; 804, water inlet pipe; 805, spray head; 806, second gear; 807, first gear; 808, second hydraulic chamber; 809, second hydraulic rod; 810, connecting block; 811, rack; 812, pipe rotary joint; 813, mounting plate; 814, first hydraulic chamber; 815, first hydraulic rod; 816, connecting piece; 9, wringing assembly; 901, extrusion block; 902, water receiving groove; 903, water guide block; 904, water storage tank; 905, water delivery pipe; 10, valve. DETAILED DESCRIPTION

[0029] In order to make the personnel in the technical field better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0030] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances to describe the embodiments of the present application. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0031] In the present application, the terms "up", "down", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0032] Moreover, the above-mentioned terms, in addition to being used to indicate the positional or positional relationship, can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances.

[0033] In addition, the terms "mount", "set", "provided with", "connected", "connected", "socketed" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally configured; it can be mechanically connected or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0034] It should be noted that the embodiments and features in the embodiments in this application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0035] Embodiment 1: see Figures 1-8The embodiment provides a laser welding device with self-cleaning smoke, which comprises a workbench 1, the workbench 1, a sliding support frame 2 and a laser welding head 3 constitute the body of the laser welding equipment, the existing technology, the sliding support frame 2 is arranged above the workbench 1, the sliding support frame 2 is used for driving the laser welding head 3 to move in X and Y axes, the existing technology, the sliding support frame 2 is provided with the laser welding head 3 in front, the laser welding head 3 is used for laser welding and can be lifted up and down, the existing technology, the workbench 1 is provided with a containing groove in the upper portion and the inner surface of the containing groove is slidably connected with a baffle 5, the containing groove is in the shape of a mouth, the baffle 5 is provided with through holes corresponding to the air suction pipe 407 on the left and right sides, so that the air suction pipe 407 can suck the smoke gathered in the baffle 5, the baffle 5 is provided with notches on the front and back surfaces, the notches are used for conveniently placing long strip-shaped parts on the workbench 1, the baffle 5 is provided with smoke suction assemblies 4 on the left and right sides, the number of the smoke suction assemblies 4 is two, the two smoke suction assemblies 4 are symmetrically arranged on the left and right sides of the baffle 5, the smoke suction assembly 4 comprises a lifting seat 402, the workbench 1 is provided with a groove for placing the lifting seat 402 in the upper portion, the lifting seat 402 is fixedly connected with the outer surface of the baffle 5, a motor-driven push rod 403 is fixedly connected with the upper portion of the lifting seat 402, the motor-driven push rod 403 is in an elongated state in a normal state, the motor-driven push rod 403 is fixedly connected with the top of the inner surface of the sliding support frame 2, a limiting sleeve 404 is fixedly connected with the upper portion of the workbench 1, the number of the limiting sleeve 404 is two, a sliding frame 405 is slidably connected with the inner surface of the limiting sleeve 404, the sliding frame 405 is in the shape of U, a moving frame 406 is fixedly connected with the left end of the sliding frame 405, the moving frame 406 comprises a base and a supporting rod and is used for supporting the air suction pipe 407, the air suction pipe 407 is fixedly connected with the upper portion of the moving frame 406, the number of the air suction pipe 407 and the moving frame 406 is two, the position of the air suction pipe 407 corresponds to the through hole on the baffle 5, a spring 408 is fixedly connected between the inner surface of the sliding frame 405 and the limiting sleeve 404, a steel wire rope 409 is connected between the inner surface of the sliding frame 405 and the lifting seat 402, a roller 410 is movably attached to the upper portion of the steel wire rope 409, the outer ring of the roller 410 is in a concave structure and is used for limiting the steel wire rope 409, first supporting sheets 401 are rotatably connected to the front and back surfaces of the roller 410, the first supporting sheets 401 are fixedly connected with the upper portion of the workbench 1, air suction machines 6 are fixedly installed on the left and right sides of the workbench 1, the air suction machines 6 are used for air suction, the air suction machines 6 are connected with the air suction pipe 407 through pipelines, the air suction machines 6 are connected with the air suction pipe 407 through pipelines, the air suction machines 6 can suck air through the air suction pipe 407 when the air suction machines 6 are started, supporting legs 7 are fixedly connected with the lower portion of the workbench 1, the number of the supporting legs 7 is four and the supporting legs 7 are arranged at the four corners of the lower portion of the workbench 1.

[0036] The above device is used in specific, first, the workpiece is placed on the workbench 1, then the position of the laser welding head 3 is adjusted by sliding the support frame 2 to facilitate laser welding of the workpiece, at this time, the air suction fan 6 is started to suck the smoke generated during laser welding of the workpiece through the air suction pipe 407, when welding small or long strip-shaped workpieces, first, the workpiece is placed on the baffle plate 5 or the notch on the baffle plate 5 on the workbench 1, at this time, the electric push rod 403 is started to retract, which drives the lifting seat 402 to rise, the baffle plate 5 is pulled up from the workbench 1 by the lifting of the lifting seat 402, which covers the area of the workpiece to be welded, at this time, the baffle plate 5 ensures that the smoke is relatively concentrated while the laser welding head 3 is laser welding the workpiece, at this time, the lifting of the lifting seat 402 also pulls the steel wire rope 409, the steel wire rope 409 pulls the sliding frame 405 towards the workpiece under the limitation of the roller 410 and the first support plate 401, at this time, the sliding frame 405 slides towards the workpiece in the limiting sleeve 404 and compresses the spring 408, the sliding of the sliding frame 405 towards the workpiece drives the moving frame 406 to move the air suction pipe 407 towards the workpiece, so that the air suction pipe 407 is close to the through hole on the baffle plate 5 and aligned with it, thereby facilitating the welding of smaller workpieces to absorb smoke, when the workpiece is taken out, the extension of the electric push rod 403 resets to drive the lifting seat 402 to descend and make the baffle plate 5 retract into the workbench 1, at this time, the descent of the lifting seat 402 will relax the steel wire rope 409, the compressed spring 408 will elastically reset and drive the sliding frame 405 and the moving frame 406 to move the air suction pipe 407 away from the workpiece, thereby expanding the table surface above the workbench 1 and ensuring the flatness above the workbench 1 to facilitate the taking of the workpiece and cleaning of the table surface.

[0037] Example 2: see Figures 2-8The spray assembly 8 is arranged above the guard plate 5, and the number of the spray assembly 8 is two, which are symmetrically arranged on the left and right sides of the inner surface of the sliding support frame 2. The spray assembly 8 comprises a support plate 801, the support plate 801 is fixedly connected to the left side of the sliding support frame 2, a sponge pad 802 is fixedly connected to the left side of the support plate 801, the sponge pad 802 covers the spray head 805, a second support sheet 803 is fixedly connected to the left side of the support plate 801, the number of the second support sheet 803 is two, wherein the front second support sheet 803 is larger than the rear second support sheet 803, the front surface of the second support sheet 803 penetrates and is rotatably connected with a water inlet pipe 804, the rear end of the water inlet pipe 804 is fixedly connected with a pipe rotary joint 812, the pipe rotary joint 812 is used for connecting the water pipe to the external water source, the right side of the water inlet pipe 804 is fixedly connected with the spray head 805, the spray head 805 is in contact with the sponge pad 802 in the normal state, the front surface of the water inlet pipe 804 is fixedly connected with a second gear 806, a first gear 807 is engaged below the second gear 806, the front surface of the first gear 807 is rotatably connected with the second support sheet 803, the left side of the sliding support frame 2 is fixedly connected with a second hydraulic chamber 808, the inner surface of the second hydraulic chamber 808 is slidably connected with a second hydraulic rod 809, the second hydraulic rod 809 and the second hydraulic chamber 808 are slidably connected through a piston, the piston is arranged at the lower end of the second hydraulic rod 809, the upper end of the second hydraulic rod 809 is fixedly connected with a connecting block 810, the rear of the connecting block 810 is fixedly connected with a rack 811, the rack 811 is slidably connected with the left side of the sliding support frame 2, the sliding support frame 2 is provided with a sliding rail for the rack 811 to slide up and down, the right side of the rack 811 is engaged with the first gear 807, the rack 811 is not in contact with the second gear 806, the spray assembly 8 further comprises a mounting plate 813, the mounting plate 813 is hingedly connected to the right side of the workbench 1, the mounting plate 813 can be angularly adjusted and swung, the upper side of the mounting plate 813 is fixedly connected with a first hydraulic chamber 814, the first hydraulic chamber 814 is provided with a liquid, the first hydraulic chamber 814 and the second hydraulic chamber 808 are connected through pipelines, the first hydraulic chamber 814 and the second hydraulic chamber 808 are connected and communicated through a hose, the inner surface of the first hydraulic chamber 814 is slidably connected with a first hydraulic rod 815, the first hydraulic rod 815 and the first hydraulic chamber 814 are slidably connected through a piston, the piston is arranged at the lower end of the first hydraulic rod 815, the upper end of the first hydraulic rod 815 is hingedly connected with a connecting sheet 816, and the connecting sheet 816 is fixedly connected to the right end of the sliding frame 405.

[0038] The above device is used in specific, when the sliding frame 405 in the limiting sleeve 404 in the workpiece direction sliding, will drive the connecting piece 816 to the workbench 1 direction movement, at this time with the connecting piece 816 to the workbench 1 direction movement will drive the first hydraulic rod 815 and the first hydraulic warehouse 814 and mounting plate 813 will also be inclined to vertical direction movement, the first hydraulic rod 815 will also retract in the first hydraulic warehouse 814 in the movement, the first hydraulic rod 815 will push the liquid in the first hydraulic warehouse 814 makes it injects into the second hydraulic warehouse 808, in turn, the second hydraulic rod 809 in the second hydraulic warehouse 808 is pushed up, through the second hydraulic rod 809 up will drive the connecting block 810 up, through the connecting block 810 up will drive the rack 811 up sliding, the rack 811 will drive the first gear 807 counterclockwise rotation, through the first gear 807 counterclockwise rotation will drive the second gear 806 clockwise rotation, through the second gear 806 clockwise rotation will drive the inlet pipe 804 and the nozzle 805 clockwise rotation, the nozzle 805 normal state is covered by the sponge pad 802, for protection and dustproof, through the inlet pipe 804 and the nozzle 805 clockwise rotation will make the nozzle 805 from the sponge pad 802 moves away and points to the workpiece above the workbench 1, at this time through the pipe rotating joint 812 connects the water pipe to the external water source in order to spray the nozzle 805 to the workbench 1 and its above the workpiece spray water mist, in order to cool and dust removal.

[0039] Embodiment 3: see Figures 3-7 , the inlet pipe 804 below is provided with squeeze water assembly 9, squeeze water assembly 9 includes extrusion block 901, the upper side of extrusion block 901 is circular arc convex block, for extruding to the sponge pad 802 so as to extrude the water in the sponge pad 802, extrusion block 901 is fixedly connected above the inlet pipe 804, the left side of sliding support frame 2 is fixedly connected with water collecting groove 902, the water collecting groove 902 is inclined, which is inclined backward, the water collecting groove 902 is arranged below the sponge pad 802, for collecting the water squeezed out from the sponge pad 802, the support plate 801 below is fixedly connected with water guide block 903, the shape of water guide block 903 is triangular, squeeze water assembly 9 further includes water storage tank 904, water storage tank 904 is fixedly connected with the rear of workbench 1, water storage tank 904 and water collecting groove 902 rear end between pipeline connection has water delivery pipe 905, water delivery pipe 905 is used for conveying the water in the water collecting groove 902 to the water storage tank 904, the water storage tank 904 below is fixedly connected with valve 10, valve 10 is used for releasing the water in the water storage tank 904.

[0040] The water sprayed by the spray head 805 will be partially left in the water inlet pipe 804 and on the outer surface of the spray head 805. When the spray head 805 stops working and is retracted to be covered by the sponge pad 802, the water will be absorbed by the sponge pad 802. When the water inlet pipe 804 and the spray head 805 rotate clockwise, the squeezing block 901 will also rotate clockwise. The clockwise rotation of the squeezing block 901 will squeeze the sponge pad 802 from top to bottom, so as to squeeze out the water in the sponge pad 802. The squeezed-out water will fall down and fall on the water guide block 903 and be guided to flow into the water collecting groove 902. The water flowing into the water collecting groove 902 will flow backward and enter the water storage tank 904 through the water conveying pipe 905, so as to collect and store the excess water for recycling.

[0041] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes to the technical scheme and the inventive concept of the present application within the technical scope disclosed by the present application, and all of the above should be covered within the protection scope of the present application.

Claims

1. A laser welding device with self-purification of smoke and dust, comprising a workbench, a sliding support frame is provided above the workbench, and a laser welding head is provided on the front of the sliding support frame, characterized in that: The top of the movable frame is fixedly provided with a lifting mechanism, and the lifting mechanism is fixedly provided with a lifting mechanism, and the lifting mechanism is fixedly provided with a lifting mechanism. A spray assembly is provided above the guard plate, and the spray assembly includes a support plate, which is fixedly connected to the left side of the sliding support frame, and a sponge pad is fixedly connected to the left side of the support plate, and a second support piece is fixedly connected to the left side of the support plate, and the front of the second support piece passes through and is rotatably connected to a water inlet pipe, and the rear end of the water inlet pipe is fixedly connected to a pipe rotary joint, and the right side of the water inlet pipe is fixedly connected to a spray head, and the front side of the water inlet pipe is fixedly connected to a second gear, and a first gear is meshed below the second gear, and the first gear is rotatably connected to the front side of the second support piece, and the left side of the sliding support frame is fixedly connected to a second hydraulic warehouse, and a second hydraulic rod is slidably connected to the inner surface of the second hydraulic warehouse, and the upper end of the second hydraulic rod is fixedly connected to a connecting block, and the rear of the connecting block is fixedly connected to a rack, and the rack is slidably connected to the left side of the sliding support frame, and the rack is meshed with the right side of the first gear.

2. The laser welding device with self-purification of smoke according to claim 1, characterized in that: Suction fans are fixedly installed on the left and right sides of the workbench, and the suction fans are connected to the suction pipes through pipelines.

3. The laser welding device with self-purification of smoke according to claim 1, characterized in that: Support legs are fixedly connected below the workbench.

4. The laser welding device with self-purification of smoke according to claim 1, characterized in that: The spray assembly also includes a mounting plate, which is hinged to the right side of the workbench. A first hydraulic tank is fixedly connected above the mounting plate. The first hydraulic tank and the second hydraulic tank are connected by pipelines. A first hydraulic rod is slidably connected to the inner surface of the first hydraulic tank. A connecting piece is hinged to the upper end of the first hydraulic rod, and the connecting piece is fixedly connected to the right end of the sliding frame.

5. The laser welding device with self-cleaning smoke according to claim 1, characterized in that: A water squeezing assembly is provided below the water inlet pipe, and the water squeezing assembly includes an extrusion block, which is fixedly connected to the top of the water inlet pipe. A water receiving trough is fixedly connected to the left side of the sliding support frame, and a water guide block is fixedly connected to the bottom of the support plate.

6. The smoke self-purification laser welding device according to claim 5, characterized in that: The water squeezing assembly also includes a water storage tank, which is fixedly connected to the rear of the workbench. A water pipe is connected to the water storage tank and the rear end of the water receiving trough.

7. The laser welding device with self-purification of smoke according to claim 6, characterized in that: A valve is fixedly connected below the water storage tank.

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