Laser welding device and method for metal material

Abstract

The present invention relates to the technical field of laser welding, and in particular to a laser welding device for metal materials and a method thereof, a laser welding mechanism, which comprises a base, both sides of the top of the base are fixedly connected with a fixing frame, a hollow plate is arranged inside the base, the top of the hollow plate is fixedly connected to the bottom of the fixing frame, the top of the fixing frame is fixedly connected with a top plate, the bottom of the top plate is fixedly connected with an electric slide rail, the surface of the electric slide rail is movably connected with a laser transmitting head, both sides of the front of the base are fixedly connected with a console, and a lifting and cooling mechanism comprises a cooling water tank, the cooling water tank is movably connected to the inside of the base, the four corners of the bottom of the cooling water tank are fixedly connected with hydraulic rods, the cooling water tank is driven to move upward by the hydraulic rod inside the lifting and cooling mechanism to cool the workpiece placed on the hollow plate, and the exhaust gas filtering mechanism can filter and process the exhaust gas generated by the welding of the workpiece in real time, and can act on the cooling process of the workpiece.

Description

Technical Field

[0001] The present invention relates to the technical field of laser welding, and in particular to a laser welding device for metal materials and a method thereof. Background Art

[0002] Laser welding is an efficient precision welding method that uses a high-energy-density laser beam as a heat source. This method is one of the important aspects of the application of laser material processing technology. In the 1970s, laser welding was mainly used to weld thin-walled materials and perform low-speed welding. This welding process belongs to the heat conduction type, that is, the laser radiation heats the surface of the workpiece, and then the surface heat diffuses to the inside through heat conduction. By controlling the parameters such as the width, energy, peak power and repetition frequency of the laser pulse, the workpiece can be melted to form a specific molten pool. Due to its unique advantages, laser welding has been successfully used in the precision welding of micro and small parts.

[0003] After laser welding, the high temperature of the metal material will still exist. The existing laser welding device uses an air pump to blow air to dissipate the heat of the metal material after welding. When the air pump blows air to dissipate the heat, the windward and leeward sides of the material will have different temperatures. There are certain limitations. Metal materials will produce harmful gases during the welding process. When the air pump blows air to dissipate the heat of the metal material, the harmful gases will spread, which will not only pollute the surrounding air, but also cause injuries to the operator by inhaling them. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] The present invention is proposed in view of the above-mentioned problems existing in the conventional laser welding devices for metal materials.

[0006] Therefore, an object of the present invention is to provide a laser welding device for metal materials, which aims to filter exhaust gas and cool the workpiece at the same time.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a laser welding mechanism, which includes a base, both sides of the top of the base are fixedly connected with a fixing frame, a hollow plate is arranged inside the base, the top of the hollow plate is fixedly connected to the bottom of the fixing frame, the top of the fixing frame is fixedly connected with a top plate, the bottom of the top plate is fixedly connected with an electric slide rail, the surface of the electric slide rail is movably connected with a laser transmitter head, and both sides of the front of the base are fixedly connected with a console;

[0008] A lifting cooling mechanism, which includes a cooling water tank, the cooling water tank is movably connected to the inside of the base, the four corners of the bottom of the cooling water tank are fixedly connected with hydraulic rods, the bottom end of the hydraulic rod is fixedly connected to the bottom of the inner wall of the base, the front and rear sides of the inner wall of the cooling water tank are both provided with fixed grooves, the interior of the fixed groove is movably connected with a stirring component, the bottom of the fixed frame is fixedly connected with an injection component, the injection component includes a mounting plate, the inner side of the top of the mounting plate is fixedly connected with an air bag, the tops of both sides of the cooling water tank are fixedly connected with connecting A connecting plate, the bottom of the connecting plate is fixedly connected to the top of the airbag, the bottom of the airbag is fixedly connected to a one-way valve, the top of the airbag is fixedly connected to a second telescopic hose, a vent pipe is fixedly inlaid on the inner side of the fixing frame, a flat-mouthed nozzle is fixedly connected to the inner side of the vent pipe, a plurality of flat-mouthed nozzles are provided and distributed at equal distances, the top of the second telescopic hose is connected to the vent pipe, the top and bottom of the inner wall of the airbag are fixedly connected to a reset component, and the front and rear sides of the top of the cooling water tank are fixedly connected to vibration components; and,

[0009] An exhaust gas filtering mechanism comprises a mounting cylinder, a fan is movably installed inside the mounting cylinder, exhaust gas treatment grooves are provided on the front and rear sides of both sides of the top of the cooling water tank, a first telescopic hose is fixedly connected to the top of the exhaust gas treatment groove, and one end of the first telescopic hose away from the exhaust gas treatment groove is connected to the mounting cylinder, air injection filtering cooling components are fixedly embedded on the front and rear sides of both sides of the bottom of the inner wall of the cooling water tank, a filtering component is fixedly installed inside the exhaust gas treatment groove, and knocking cleaning components are provided on the front and rear sides of both sides of the inner wall of the cooling water tank.

[0010] As a preferred embodiment of the laser welding device for metal materials described in the present invention, the stirring assembly includes a screw sleeve, the top of the screw sleeve is fixedly connected to the bottom of the hollow plate, the internal thread of the screw sleeve is connected to a screw rod, the screw rod is movably connected to the inside of the fixed groove, the bottom of the screw surface is fixedly connected to a transmission pulley, the inner side of the fixed groove is movably connected to a rotating rod, the bottom of the rotating rod surface is fixedly connected to a driven pulley, the surface of the transmission pulley is provided with a transmission belt, the transmission pulley is transmission-connected to the driven pulley through the transmission belt, the surface of the rotating rod is fixedly connected to a paddle plate, and a plurality of paddle plates are provided and are equidistant.

[0011] As a preferred solution of the laser welding device for metal materials of the present invention, the reset component includes a reset plate, a reset spring is arranged inside the airbag, and both ends of the reset spring are fixedly connected to the inner side of the reset plate.

[0012] As a preferred solution of the laser welding device for metal materials described in the present invention, the vibration component includes a mounting frame, a vibration plate is fixedly installed inside the mounting frame, vibration grooves are provided on the front and rear sides of the outer side of the fixing frame, a plurality of vibration grooves are provided and are distributed at equal distances, and the vibration plate is movably connected to the vibration grooves.

[0013] As a preferred solution of the laser welding device for metal materials described in the present invention, the gas injection filtering and cooling assembly includes a connecting pipe, the end of the connecting pipe close to the exhaust gas treatment tank is connected to the exhaust gas treatment tank, and the top of the connecting pipe is fixedly connected to a gas outlet nozzle, and a plurality of gas outlet nozzles are provided and distributed at equal distances.

[0014] As a preferred embodiment of the laser welding device for metal materials described in the present invention, the filter assembly includes an activated carbon filter plate, a cleaning groove is provided on the outer side of the inner wall of the exhaust gas treatment tank, and a sealing plate is movably installed on the outer side of the inner wall of the cleaning groove.

[0015] As a preferred solution of the laser welding device for metal materials described in the present invention, the knocking and cleaning component includes a knocking groove, a plurality of knocking grooves are opened and distributed at equal distances, and the front and rear sides of the bottom of the hollow plate are fixedly connected with knocking frames, and the knocking frames are movably connected to the knocking grooves.

[0016] The beneficial effects of the present invention are as follows: the cooling water tank inside the lifting cooling mechanism is moved upward to cool the workpiece placed on the hollow plate, and at the same time the exhaust gas filtering mechanism can suck the exhaust gas generated during the laser welding of the workpiece into the exhaust gas treatment tank, so that the exhaust gas is injected into the cooling water tank through the filtering assembly and the gas injection filtering cooling assembly, so that the filtering assembly and the cooling water inside the cooling water tank can filter the exhaust gas.

[0017] The present invention is proposed in view of the problems existing in the welding method of the above-mentioned conventional laser welding device for metal materials.

[0018] Therefore, an object of the present invention is to provide a welding method for a laser welding device for metal materials, the purpose of which is to accelerate the cooling efficiency of the workpiece while filtering the exhaust gas generated during welding of the workpiece.

[0019] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising:

[0020] The cooling water tank inside the lifting cooling mechanism rises to cool the workpiece placed on the hollow plate;

[0021] After the fan inside the exhaust gas filter mechanism is started, the exhaust gas generated during the laser welding of the workpiece can be absorbed and filtered in conjunction with the filter component.

[0022] As a preferred embodiment of the welding method of the laser welding device for metal materials of the present invention, the method comprises:

[0023] The cooling water tank is driven up by the hydraulic rod inside the lifting cooling mechanism, so that the cooling water inside the cooling water tank can cool the workpiece placed on the hollow plate;

[0024] The exhaust gas generated during the welding of the workpiece is sucked into the exhaust gas treatment tank through the fan inside the exhaust gas filtering mechanism, and the exhaust gas is filtered in cooperation with the filtering component and the air injection filtering cooling component.

[0025] The beneficial effects of the present invention are as follows: the cooling water tank is driven to move upward by the hydraulic rod inside the lifting cooling mechanism to cool the workpiece placed on the hollow plate, and at the same time the exhaust gas filtering mechanism can filter and process the exhaust gas generated by the welding of the workpiece in real time and can act on the cooling process of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0027] Figure 1 The present invention provides an overall structural diagram.

[0028] Figure 2 This is a schematic diagram of the three-dimensional cross-sectional structure of the base provided by the present invention.

[0029] Figure 3 This is a schematic diagram of the three-dimensional structure of the cooling water tank provided by the present invention.

[0030] Figure 4 This is a schematic exploded perspective view of a three-dimensional cross-section of a cooling water tank provided by the present invention.

[0031] Figure 5 A schematic diagram of the three-dimensional structure for placing a hollow plate provided by the present invention.

[0032] Figure 6 This is a schematic diagram of the three-dimensional cross-sectional structure of the airbag provided by the present invention. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0036] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0037] Example 1

[0038] Reference Figures 1 to 6 , which is the first embodiment of the present invention, provides a welding method for a laser welding device for metal materials. Through the welding method for a laser welding device for metal materials, the workpiece can be cooled while the welding exhaust gas of the workpiece is treated.

[0039] The cooling water tank 201 is driven up by the hydraulic rod 202 inside the lifting cooling mechanism 200, so that the cooling water inside the cooling water tank 201 can cool the workpiece placed on the hollow plate 103;

[0040] The exhaust gas generated during the welding of the workpiece is sucked into the exhaust gas treatment tank 303 by the fan 302 inside the exhaust gas filtering mechanism 300, and the exhaust gas is filtered in cooperation with the filter component 306 and the gas injection filter cooling component 305.

[0041] The cooling water tank 201 is started to move upward by the hydraulic rod 202 inside the lifting cooling mechanism 200, so that the water level of the cooling water inside the cooling water tank 201 is higher than the workpiece placed on the hollow plate 103, so that the cooling water can cool the workpiece. At the same time, the up and down movement of the cooling water tank 201 can drive the stirring component 204, so that the stirring component 204 can accelerate the flow rate of the cooling water, thereby increasing the cooling efficiency of the cooling water on the workpiece;

[0042] After the fan 302 in the internal installation tube 301 of the exhaust gas filtering mechanism 300 is started, the exhaust gas can be sucked into the exhaust gas treatment tank 303, so that the exhaust gas can be filtered for the first time after passing through the filter component 306 inside the exhaust gas treatment tank 303, and the exhaust gas will be injected into the cooling water tank 201 through the gas injection filter cooling component 305, so that the cooling water inside the cooling water tank 201 can filter the exhaust gas for a second time. At the same time, when the exhaust gas is injected into the cooling water tank 201, bubbles will be formed in the cooling water, thereby further increasing the cooling effect of the cooling water on the workpiece.

[0043] Example 2

[0044] Reference Figures 1 to 6 , which is the second embodiment of the present invention, provides a lifting cooling mechanism 200, through which the workpiece is cooled and the residue on the surface of the workpiece is cleaned.

[0045] The lifting cooling mechanism 200 includes a cooling water tank 201, which is movably connected to the inside of the base 101. The four corners of the bottom of the cooling water tank 201 are fixedly connected with hydraulic rods 202. The bottom end of the hydraulic rod 202 is fixedly connected to the bottom of the inner wall of the base 101. Fixed grooves 203 are provided on both sides of the front and rear sides of the inner wall of the cooling water tank 201. The interior of the fixed groove 203 is movably connected with a stirring component 204. The bottom of the fixed frame 102 is fixedly connected with an injection component 205. The front and rear sides of the top of the cooling water tank 201 are fixedly connected with vibration components 206.

[0046] The stirring assembly 204 includes a screw sleeve 204a, the top of which is fixedly connected to the bottom of the hollow plate 103, the internal thread of the screw sleeve 204a is connected to a screw rod 204b, the screw rod 204b is movably connected to the inside of the fixed groove 203, the bottom of the surface of the screw rod 204b is fixedly connected to a transmission pulley 204c, the inner side of the fixed groove 203 is movably connected to a rotating rod 204d, the bottom of the surface of the rotating rod 204d is fixedly connected to a driven pulley 204e, the surface of the transmission pulley 204c is sleeved with a transmission belt 204f, the transmission pulley 204c is transmission-connected to the driven pulley 204e through the transmission belt 204f, the surface of the rotating rod 204d is fixedly connected to a toggle piece 204g, and a plurality of toggle pieces 204g are provided and are equidistant.

[0047] The gas injection assembly 205 includes a mounting plate 205a, an air bag 205b is fixedly connected to the inner side of the top of the mounting plate 205a, connecting plates 205c are fixedly connected to the tops of both sides of the cooling water tank 201, the bottom of the connecting plate 205c is fixedly connected to the top of the air bag 205b, the bottom of the air bag 205b is fixedly connected to a one-way valve 205d, the top of the air bag 205b is fixedly connected to a second telescopic hose 205e, a ventilation pipe 205g is fixedly inlaid on the inner side of the fixed frame 102, a flat-mouth nozzle 205h is fixedly connected to the inner side of the ventilation pipe 205g, a plurality of flat-mouth nozzles 205h are arranged and distributed at equal distances, the top of the second telescopic hose 205e is connected to the ventilation pipe 205g, and the top and bottom of the inner wall of the air bag 205b are fixedly connected to a reset component 205i.

[0048] The reset component 205i includes a reset plate 205i1, and a reset spring 205i2 is arranged inside the airbag 205b. Both ends of the reset spring 205i2 are fixedly connected to the inner side of the reset plate 205i1.

[0049] The vibration assembly 206 includes a mounting frame 206a, inside which a vibration plate 206b is fixedly mounted. The front and rear sides of the outer side of the fixing frame 102 are provided with vibration grooves 206c. There are a plurality of vibration grooves 206c which are equally spaced. The vibration plate 206b is movably connected to the vibration grooves 206c.

[0050] Specifically, as the hydraulic rod 202 drives the cooling water tank 201 to move upward, the cooling water can contact the workpiece placed on the hollow plate 103, so that the cooling water cools the workpiece.

[0051] In the process of the cooling water tank 201 moving upward, the screw 204b inside the fixed groove 203 will be driven to move upward, so that the screw 204b moves upward in the screw sleeve 204a fixed at the bottom of the hollow plate 103, so that the screw 204b itself rotates, and after the screw 204b rotates itself, it can drive the transmission belt 204f to rotate through the transmission pulley 204c, so that the transmission belt 204f drives the driven pulley 204e to rotate, so that the driven pulley 204e can drive the rotating rod 204d to rotate, so that the rotating rod 204d rotates and can drive the paddle plate 204g to rotate, so that the paddle plate 204g can stir the cooling water inside the cooling water tank 201 after the rotation, so that the cooling water flows, and the flowing cooling water can accelerate the efficiency of cooling the workpiece.

[0052] When the cooling water tank 201 moves downward, the connecting plate 205c will be driven to move downward, so that after the connecting plate 205c moves downward, it can cooperate with the mounting plate 205a to squeeze the airbag 205b, so that after the airbag 205b is squeezed, the gas inside is injected into the ventilation pipe 205g through the second telescopic hose 205e, and is sprayed out through the flat-nozzle nozzle 205h on the ventilation pipe 205g, so that the airflow sprayed by the flat-nozzle nozzle 205h can blow off the cooling water on the surface of the workpiece, and at the same time can cool the residual temperature on the surface of the workpiece, and when the connecting plate 205c moves upward, the reset spring 205i2 inside the airbag 205b can cooperate with the reset plate 205i1 to reset the airbag 205b.

[0053] When the cooling water tank 201 moves downward, it can drive the vibration groove 206c to move, so that when the vibration groove 206c moves, it will contact the vibration plate 206b on the mounting frame 206a, so that the vibration generated after the vibration plate 206b contacts the vibration groove 206c can be transmitted to the workpiece placed on the hollow plate 103, thereby accelerating the separation speed of the cooling water on the surface of the workpiece and the workpiece, making it easier for the user to take out the cooled workpiece.

[0054] Furthermore, after the laser welding of the workpiece placed on the hollow plate 103 is completed, the hydraulic rod 202 inside the base 101 is started, so that the hydraulic rod 202 can drive the cooling water tank 201 to move upward after being started, so that the cooling water tank 201 can drive the cooling water to move upward. As the cooling water tank 201 moves upward, the cooling water inside the cooling water tank 201 will gradually contact the workpiece on the top through the hollow plate 103 and submerge the workpiece, so that the cooling water inside the cooling water tank 201 can cool the workpiece.

[0055] During the movement of the cooling water tank 201, the screw 204b inside the fixed groove 203 will be driven to move. Since the screw sleeve 204a on the surface of the screw 204b is fixed on the hollow plate 103, the screw 204b will rotate during the movement, so that the screw 204b can drive the transmission pulley 204c to rotate after the rotation of the screw 204b, and the transmission pulley 204c can drive the driven pulley 204e on the rotating rod 204d to rotate through the transmission belt 204f after the rotation of the driven pulley 204e, and the rotating rod 204d can be rotated after the rotation of the driven pulley 204e, and the rotating rod 204d can be rotated after the rotation of the rotating rod 204d, and the toggle piece 204g can be rotated after the rotating rod 204d drives the toggle piece 204g to rotate, and the flow rate of the cooling water can be increased after the rotating rod 204d drives the toggle piece 204g to rotate, thereby increasing the cooling effect of the cooling water on the workpiece.

[0056] As the cooling water tank 201 moves upward, the connecting plate 205c will be driven to move upward, thereby increasing the distance between the connecting plate 205c and the mounting plate 205a, so that the reset spring 205i2 inside the airbag 205b can drive the reset plate 205i1 to move outward through its own elastic force, so that the reset plate 205i1 can unfold the airbag 205b. As the airbag 205b unfolds, the inside of the airbag 205b will be in a negative pressure state, and the outside air will enter the inside of the airbag 205b through the one-way valve 205d.

[0057] After the workpiece is cooled, the cooling water tank 201 is driven by the hydraulic rod 202 to move downward and reset. When the cooling water tank 201 moves, the connecting plate 205c is driven to move downward, so that after the connecting plate 205c moves downward, it can drive the airbag 205b to move downward and cooperate with the mounting plate 205a to squeeze the airbag 205b and the reset spring 205i2, so that the gas inside the airbag 205b can be injected into the ventilation pipe 205g through the second telescopic hose 205e after being squeezed, and sprayed out through the flat-mouth nozzle 205h on the ventilation pipe 205g, so that the airflow is blown to the cooled workpiece, so that the airflow can not only blow off the cooling water on the surface of the workpiece, but also further cool the residual temperature on the surface of the workpiece.

[0058] When the cooling water tank 201 moves downward, the vibration plate 206b on the mounting frame 206a will contact the vibration groove 206c, so that the contact between the vibration plate 206b and the vibration groove 206c can generate vibration and transmit the vibration to the hollow plate 103, so that after the hollow plate 103 vibrates, the workpiece above will also vibrate, so that the cooling water on the surface of the workpiece can drip quickly.

[0059] It should be noted that the diameter of the driven pulley 204e is larger than that of the driving pulley 204c.

[0060] Example 3

[0061] Reference Figures 1 to 5 , which is the third embodiment of the present invention, provides an exhaust gas filtering mechanism 300. Through the exhaust gas filtering mechanism 300, the exhaust gas can be filtered and the cooling water can be cooled by the exhaust gas at the same time.

[0062] The exhaust gas filtering mechanism 300 includes a mounting cylinder 301, a fan 302 is movably installed inside the mounting cylinder 301, exhaust gas treatment grooves 303 are provided on the front and rear sides of both sides of the top of the cooling water tank 201, a first telescopic hose 304 is fixedly connected to the top of the exhaust gas treatment groove 303, and one end of the first telescopic hose 304 away from the exhaust gas treatment groove 303 is connected to the mounting cylinder 301, air injection filtering cooling components 305 are fixedly embedded on the front and rear sides of both sides of the bottom of the inner wall of the cooling water tank 201, a filtering component 306 is fixedly installed inside the exhaust gas treatment groove 303, and knocking cleaning components 307 are provided on the front and rear sides of both sides of the inner wall of the cooling water tank 201.

[0063] The gas injection filtering and cooling assembly 305 includes a connecting pipe 305a, one end of the connecting pipe 305a close to the waste gas treatment tank 303 is connected to the waste gas treatment tank 303, and the top of the connecting pipe 305a is fixedly connected to a gas outlet nozzle 305b, and a plurality of gas outlet nozzles 305b are arranged and distributed at equal distances.

[0064] The filter assembly 306 includes an activated carbon filter plate 306a, a cleaning groove 306b is provided on the outer side of the inner wall of the exhaust gas treatment groove 303, and a sealing plate 306c is movably installed on the outer side of the inner wall of the cleaning groove 306b.

[0065] The knocking cleaning component 307 includes a knocking groove 307a, which is provided with a plurality of knocking grooves 307a and is distributed at equal distances. The front and rear sides of the bottom of the hollow plate 103 are fixedly connected with a knocking frame 307b, and the knocking frame 307b is movably connected to the knocking groove 307a.

[0066] Specifically, when the fan 302 inside the installation tube 301 is started, the waste gas generated during the laser welding of the workpiece will be sucked into the waste gas treatment tank 303 through the first telescopic hose 304 .

[0067] The waste gas entering the waste gas treatment tank 303 will first contact the activated carbon filter plate 306a inside the waste gas treatment tank 303, so that the activated carbon filter plate 306a can filter the waste gas inside the waste gas treatment tank 303, and the activated carbon filter plate 306a can adsorb harmful substances in the waste gas.

[0068] The exhaust gas filtered by the activated carbon filter plate 306a will enter the connecting pipe 305a and be injected into the cooling water tank 201 through the air outlet nozzle 305b on the connecting pipe 305a, so that the cooling water in the cooling water tank 201 can cool the exhaust gas again. At the same time, the exhaust gas will form bubbles in the cooling water, which not only cools the cooling water but also increases the cooling effect of the cooling water on the workpiece.

[0069] When the cooling water tank 201 moves downward, the knocking groove 307a will be driven to move downward, so that the knocking groove 307a will contact the knocking frame 307b and generate a vibration force, which will transmit the vibration force to the activated carbon filter plate 306a, so that the dust or hair attached to the activated carbon filter plate 306a can be vibrated and fall into the cleaning groove 306b through the inclination of the activated carbon filter plate 306a.

[0070] After the activated carbon filter plate 306a has been used for a long time, the user can open the sealing plate 306c to clean the dust accumulated inside the cleaning groove 306b.

[0071] Furthermore, when the laser emitting head 106 on the electric slide rail 105 is used to laser weld the workpiece placed on the hollow plate 103, the fan 302 inside the installation cylinder 301 is started, so that after the fan 302 is started, the air placed on the hollow plate 103 can be sucked into the installation cylinder 301, so that the harmful exhaust gas generated during the laser welding of the workpiece can be sucked into the installation cylinder 301, and the exhaust gas can enter the exhaust gas treatment tank 303 through the first telescopic hose 304, so that the activated carbon filter plate 306a inside the exhaust gas treatment tank 303 can filter the exhaust gas, thereby activating The carbon filter plate 306a can adsorb harmful substances in the exhaust gas, and then the exhaust gas is injected into the interior of the cooling water tank 201 through the exhaust nozzle 305b on the connecting pipe 305a, so that the cooling water inside the cooling water tank 201 can perform secondary filtering on the exhaust gas. At the same time, the exhaust gas will form bubbles when it is injected into the cooling water tank 201, so that the generation of bubbles can cool the cooling water inside the cooling water tank 201. The bubbles generated by the exhaust gas injected into the cooling water tank 201 can not only cool the cooling water but also accelerate the cooling effect of the cooling water on the workpiece.

[0072] And in the process of the cooling water tank 201 moving downward, the knocking groove 307a will be driven to move, so that the knocking groove 307a can contact the knocking frame 307b after moving, so that the knocking groove 307a and the knocking frame 307b can generate vibration after contact, and transmit the vibration to the activated carbon filter net inside the exhaust gas treatment tank 303, so that the dust on the activated carbon filter can be vibrated and roll to one side according to the inclination of the activated carbon filter plate 306a.

[0073] After the activated carbon filter plate 306a has been used for a long time, the user can open the sealing plate 306c inside the cleaning tank 306b, so that the user can clean the accumulated dust inside the cleaning tank 306b.

[0074] It should be noted that the activated carbon filter plate 306a is arranged at an incline.

[0075] The remaining structure is the same as that of Example 2.

[0076] Example 4

[0077] Reference Figures 1 to 6 , which is the fourth embodiment of the present invention, is different from the third embodiment in that: a laser welding device for metal materials.

[0078] When the workpiece placed on the hollow plate 103 is laser welded by the laser emitting head 106 on the electric slide rail 105, the fan 302 inside the installation cylinder 301 is started, so that after the fan 302 is started, the air placed on the hollow plate 103 can be sucked into the installation cylinder 301, so that the harmful exhaust gas generated during the laser welding of the workpiece will be sucked into the installation cylinder 301, and the exhaust gas will enter the exhaust gas treatment tank 303 through the first telescopic hose 304, so that the activated carbon filter plate 306a inside the exhaust gas treatment tank 303 can filter the exhaust gas, so that the activated carbon filter plate 306a can adsorb harmful substances in the exhaust gas, and then the exhaust gas or through the air outlet nozzle 305b on the connecting pipe 305a is injected into the cooling water tank 201, so that the cooling water inside the cooling water tank 201 can perform secondary filtration on the exhaust gas, and at the same time, the exhaust gas will form bubbles when it is injected into the cooling water tank 201, so that the generation of bubbles can cool the cooling water inside the cooling water tank 201.

[0079] After the laser welding of the workpiece placed on the hollow plate 103 is completed, the hydraulic rod 202 inside the base 101 is started, so that the hydraulic rod 202 can drive the cooling water tank 201 to move upward after being started, so that the cooling water tank 201 can drive the cooling water to move upward, and as the cooling water tank 201 moves upward, the cooling water inside the cooling water tank 201 will gradually contact the top workpiece through the hollow plate 103 and submerge the workpiece, so that the cooling water inside the cooling water tank 201 can cool the workpiece, and the bubbles generated by the exhaust gas injected into the cooling water tank 201 can not only cool the cooling water but also accelerate the cooling effect of the cooling water on the workpiece.

[0080] During the movement of the cooling water tank 201, the screw 204b inside the fixed groove 203 will be driven to move. Since the screw sleeve 204a on the surface of the screw 204b is fixed on the hollow plate 103, the screw 204b will rotate during the movement, so that the screw 204b can drive the transmission pulley 204c to rotate after the rotation of the screw 204b, and the transmission pulley 204c can drive the driven pulley 204e on the rotating rod 204d to rotate through the transmission belt 204f after the rotation of the driven pulley 204e, and the rotating rod 204d can be rotated after the rotation of the driven pulley 204e, and the rotating rod 204d can be rotated after the rotation of the rotating rod 204d, and the toggle piece 204g can be rotated after the rotating rod 204d drives the toggle piece 204g to rotate, and the flow rate of the cooling water can be increased after the rotating rod 204d drives the toggle piece 204g to rotate, thereby increasing the cooling effect of the cooling water on the workpiece.

[0081] As the cooling water tank 201 moves upward, the connecting plate 205c will be driven to move upward, thereby increasing the distance between the connecting plate 205c and the mounting plate 205a, so that the reset spring 205i2 inside the airbag 205b can drive the reset plate 205i1 to move outward through its own elastic force, so that the reset plate 205i1 can unfold the airbag 205b. As the airbag 205b unfolds, the inside of the airbag 205b will be in a negative pressure state, and the outside air will enter the inside of the airbag 205b through the one-way valve 205d.

[0082] After the workpiece is cooled, the cooling water tank 201 is driven by the hydraulic rod 202 to move downward and reset. When the cooling water tank 201 moves, the connecting plate 205c is driven to move downward, so that after the connecting plate 205c moves downward, it can drive the airbag 205b to move downward and cooperate with the mounting plate 205a to squeeze the airbag 205b and the reset spring 205i2, so that the gas inside the airbag 205b can be injected into the ventilation pipe 205g through the second telescopic hose 205e after being squeezed, and sprayed out through the flat-mouth nozzle 205h on the ventilation pipe 205g, so that the airflow is blown to the cooled workpiece, so that the airflow can not only blow off the cooling water on the surface of the workpiece, but also further cool the residual temperature on the surface of the workpiece.

[0083] When the cooling water tank 201 moves downward, the vibration plate 206b on the mounting frame 206a will contact the vibration groove 206c, so that the contact between the vibration plate 206b and the vibration groove 206c can generate vibration and transmit the vibration to the hollow plate 103, so that after the hollow plate 103 vibrates, the workpiece above will also vibrate, so that the cooling water on the surface of the workpiece can drip quickly.

[0084] And in the process of the cooling water tank 201 moving downward, the knocking groove 307a will be driven to move, so that the knocking groove 307a can contact the knocking frame 307b after moving, so that the knocking groove 307a and the knocking frame 307b can generate vibration after contact, and transmit the vibration to the activated carbon filter plate 306a inside the exhaust gas treatment tank 303, so that the dust on the activated carbon filter plate 306a can roll to one side after being vibrated in accordance with the inclination of the activated carbon filter plate 306a.

[0085] After the activated carbon filter plate 306a has been used for a long time, the user can open the sealing plate 306c inside the cleaning tank 306b, so that the user can clean the accumulated dust inside the cleaning tank 306b.

[0086] In summary, the cooling water tank 201 is driven to move upward by the hydraulic rod 202, so that the cooling water can contact the workpiece and cool the workpiece, and at the same time, the stirring component 204 can increase the flow rate of the cooling water to further increase the cooling effect of the cooling water on the workpiece, and after the fan 302 inside the mounting cylinder 301 is started, the exhaust gas can be sucked into the exhaust gas treatment tank 303, so that the filter component 306 inside the exhaust gas treatment tank 303 can filter the exhaust gas, and at the same time, the gas injection filter cooling component 305 can inject the exhaust gas into the cooling water tank 201, so that the cooling water inside the cooling water tank 201 can filter the exhaust gas again, and at the same time, the bubbles generated by the exhaust gas can further increase the cooling effect of the cooling water on the workpiece.

[0087] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible, for example, the size, scale, structure, shape and proportion of various elements, and parameter values ​​such as temperature, pressure, etc., mounting arrangements, use of materials, color, directional changes, etc., without substantially departing from the novel angles and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of the execution function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to a variety of modifications that still fall within the scope of the appended claims. In addition, in order to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described, that is, those features that are not relevant to the best mode currently considered to carry out the invention, or those features that are not relevant to implementing the invention.

[0088] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A laser welding device for metal materials, characterized in that: A laser welding mechanism (100) comprises a base (101), both sides of the top of the base (101) are fixedly connected to a fixing frame (102), a hollow plate (103) is arranged inside the base (101), the top of the hollow plate (103) is fixedly connected to the bottom of the fixing frame (102), the top of the fixing frame (102) is fixedly connected to a top plate (104), the bottom of the top plate (104) is fixedly connected to an electric slide rail (105), the surface of the electric slide rail (105) is movably connected to a laser emitting head (106), and both sides of the front of the base (101) are fixedly connected to a control console (107); A lifting cooling mechanism (200) comprises a cooling water tank (201), the cooling water tank (201) being movably connected to the inside of the base (101), the four corners of the bottom of the cooling water tank (201) being fixedly connected to hydraulic rods (202), the bottom ends of the hydraulic rods (202) being fixedly connected to the bottom of the inner wall of the base (101), the inner walls of the cooling water tank (201) being provided with fixing grooves (203) on both sides of the front and rear sides, the fixing grooves (203) being movably connected to the inside of the stirring components (204), the bottom of the fixing frame (102) being fixedly connected to an air injection component (205), the air injection component (205) comprising a mounting plate (205a), the inner side of the top of the mounting plate (205a) being fixedly connected to an air bag (205b), the tops of both sides of the cooling water tank (201) being fixedly connected to connecting plates (2 05c), the bottom of the connecting plate (205c) is fixedly connected to the top of the airbag (205b), the bottom of the airbag (205b) is fixedly connected to a one-way valve (205d), the top of the airbag (205b) is fixedly connected to a second telescopic hose (205e), the inner side of the fixing frame (102) is fixedly inlaid with a vent pipe (205g), the inner side of the vent pipe (205g) is fixedly connected to a flat nozzle (205h), a plurality of the flat nozzles (205h) are provided and are distributed at equal distances, the top of the second telescopic hose (205e) is connected to the vent pipe (205g), the top and bottom of the inner wall of the airbag (205b) are fixedly connected to a reset component (205i), and the front and rear sides of the top of the cooling water tank (201) are fixedly connected to a vibration assembly (206); and, An exhaust gas filtering mechanism (300) comprises a mounting tube (301), a fan (302) being movably mounted inside the mounting tube (301), an exhaust gas treatment groove (303) being provided on the front and rear sides of both sides of the top of the cooling water tank (201), a first telescopic hose (304) being fixedly connected to the top of the exhaust gas treatment groove (303), an end of the first telescopic hose (304) away from the exhaust gas treatment groove (303) being connected to the mounting tube (301), an air injection filtering cooling assembly (305) being fixedly embedded on the front and rear sides of both sides of the bottom of the inner wall of the cooling water tank (201), a filtering assembly (306) being fixedly mounted inside the exhaust gas treatment groove (303), and a knocking cleaning assembly (307) being provided on the front and rear sides of both sides of the inner wall of the cooling water tank (201).

2. The laser welding device for metal materials according to claim 1, characterized in that: The stirring assembly (204) comprises a screw sleeve (204a), the top of the screw sleeve (204a) is fixedly connected to the bottom of the hollow plate (103), the inner thread of the screw sleeve (204a) is connected to a screw rod (204b), the screw rod (204b) is movably connected to the inside of the fixed groove (203), the bottom of the surface of the screw rod (204b) is fixedly connected to a driving pulley (204c), and the inner side of the fixed groove (203) is movably connected to a rotating pulley (204c). A rod (204d) is provided, wherein the bottom of the surface of the rotating rod (204d) is fixedly connected to a driven pulley (204e), the surface of the driving pulley (204c) is sleeved with a driving belt (204f), the driving pulley (204c) is connected to the driven pulley (204e) via the driving belt (204f), and the surface of the rotating rod (204d) is fixedly connected to a toggle plate (204g), wherein a plurality of the toggle plates (204g) are provided and are equidistant from each other.

3. The laser welding device for metal materials according to claim 1, characterized in that: The reset component (205i) comprises a reset plate (205i1), a reset spring (205i2) is arranged inside the air bag (205b), and two ends of the reset spring (205i2) are fixedly connected to the inner side of the reset plate (205i1).

4. The laser welding device for metal material according to claim 2 or 3, characterized in that: The vibration component (206) comprises a mounting frame (206a), a vibration plate (206b) being fixedly mounted inside the mounting frame (206a), vibration grooves (206c) being provided on the front and rear sides of the outside of the fixing frame (102), a plurality of vibration grooves (206c) being provided and distributed at equal distances, and the vibration plate (206b) being movably connected to the vibration grooves (206c).

5. The laser welding device for metal material according to claim 4, characterized in that: The gas injection filtering and cooling assembly (305) comprises a connecting pipe (305a), one end of the connecting pipe (305a) close to the waste gas treatment tank (303) is connected to the waste gas treatment tank (303), and the top of the connecting pipe (305a) is fixedly connected to a gas outlet nozzle (305b), and a plurality of the gas outlet nozzles (305b) are provided and distributed at equal distances.

6. The laser welding device for metal material according to claim 5, characterized in that: The filter assembly (306) comprises an activated carbon filter plate (306a), a cleaning groove (306b) is provided on the outer side of the inner wall of the waste gas treatment groove (303), and a sealing plate (306c) is movably installed on the outer side of the inner wall of the cleaning groove (306b).

7. The laser welding device for metal material according to claim 6, characterized in that: The knocking cleaning component (307) comprises a knocking groove (307a), wherein a plurality of the knocking grooves (307a) are provided and are distributed at equal distances, and the front side and the rear side of both sides of the bottom of the hollow plate (103) are fixedly connected with a knocking frame (307b), and the knocking frame (307b) is movably connected to the knocking groove (307a).

8. A welding method for metal materials using a laser welding device, characterized in that: The laser welding device for metal material according to any one of claims 1 to 7 further comprises: The workpiece placed on the hollow plate (103) is cooled by raising the cooling water tank (201) inside the lifting cooling mechanism (200); After the fan (302) inside the exhaust gas filtering mechanism (300) is started, the exhaust gas generated during the laser welding of the workpiece can be absorbed and filtered in cooperation with the filtering component (306).

9. The welding method of the laser welding device for metal material according to claim 8, characterized in that: include, The cooling water tank (201) is driven to rise by a hydraulic rod (202) inside the lifting cooling mechanism (200), so that the cooling water inside the cooling water tank (201) can cool the workpiece placed on the hollow plate (103); The exhaust gas generated during the welding of the workpiece is sucked into the exhaust gas treatment tank (303) by a fan (302) inside the exhaust gas filtering mechanism (300), and the exhaust gas is filtered in cooperation with a filtering component (306) and an air injection filtering cooling component (305).

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