A laser welding device for automotive parts processing

Abstract

The present invention discloses a laser welding device for automobile part processing, comprising: a laser welding machine body and a support assembly, wherein a welding head is arranged on the outer surface of the laser welding machine body; a heat recovery assembly, the heat recovery assembly includes a fixed ring, an insulating box is fixedly connected to the inner wall of the fixed ring, and a mounting block is movably connected to the inner wall of the insulating box near the bottom. When the laser welding device for automobile part processing is in use, by starting the first electric push rod and the second electric push rod, the heat absorption end of the heat pipe is close to the welding position, the heat pipe concentrates the heat and then emits the heat from its heat dissipation end to the heat sink, and the heat sink emits the heat into the insulating box, so as to realize the recovery of waste heat for convenient reuse, and solves the problems that the waste heat generated at the welding position during the laser welding process is not recovered and reused, which will lead to energy waste and environmental pollution.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive part processing, and particularly to a laser welding device for automotive part processing. Background Art

[0002] Automotive parts are the various units that make up the overall automotive parts processing and the products serving automotive parts processing. Welding is commonly used in the processing of automotive parts. In automotive manufacturing, welding production has characteristics such as large batch size, fast production speed, and high requirements for the assembly and welding accuracy of welded parts. The assembly line production method is mostly adopted, and different welding methods need to be used for different parts.

[0003] In the existing art, for example, in Chinese Patent Publication No.: CN112935542A, a laser welding device is disclosed. The laser welding device includes an input module, an output module, and a generating module connected between the input module and the output module. The generating module includes a gain fiber. The input module is configured to inject pump light into the generating module. The gain fiber is configured to absorb a part of the injected pump light, and the absorbed pump light is converted into signal light in the generating module. The absorption rate of the gain fiber is in the range of 50% - 90%. The output module is configured to output the signal light and the unabsorbed pump light to the outside. The laser welding device provided by the present invention can reduce the splash of metal objects and has a relatively low welding cost. For example, in Chinese Patent Publication No.: CN109128501A, a laser welding device is disclosed, which includes a laser welding system and a gas protection system. The gas protection system includes: a adapter, which is connected to the welding head of the laser welding system; an air pipe, one end of which is connected to the adapter; a gas source, which is connected to the other end of the air pipe; a flexible plastic pipe, one end of which is communicated with one end of the air pipe; a nozzle, which is arranged at the other end of the flexible plastic pipe; an adiabatic transition pipe is arranged at the other end of the flexible plastic pipe, and the nozzle is arranged at the other end of the flexible plastic pipe through the adiabatic transition pipe. Compared with the prior art, the beneficial effects of the present invention are as follows: By forming an inert gas space near the laser action area, realizing complex path follow-up gas protection, effectively blowing away the plasma cloud above the welding area, improving the coupling effect between the laser beam and the metal workpiece, and effectively protecting the weld that is still in a high-temperature state.

[0004] However, in the prior art, the interface of automotive part processing is smoother and more precise when using laser welding than traditional welding. During the laser welding process, heat is generated at the welding point, and this heat often directly dissipates into the air without heat recovery. Without recovering and reusing a large amount of heat, it will lead to waste of energy and environmental pollution.

[0005] Therefore, we propose a laser welding device for automotive parts processing to facilitate the solution of the problems raised above. Summary of the Invention

[0006] The purpose of the present invention is to provide a laser welding device for automotive parts processing to solve the problem that during the laser welding process, heat is generated at the welding point, and this heat often directly dissipates into the air without waste heat recovery. Without recycling and reusing a large amount of heat, it will lead to energy waste and environmental pollution as mentioned in the above background technology.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A laser welding device for automotive parts processing, including: a laser welding machine body and a support assembly. A welding head is provided on the outer surface of the laser welding machine body; a heat recovery assembly, the heat recovery assembly includes a fixed ring, the inner wall of the fixed ring is fixedly connected with a heat preservation box, an installation block is movably connected near the bottom of the inner wall of the heat preservation box, heat dissipation fins are provided on the top of the installation block, and a plurality of heat pipes are embedded in the installation block; a preheating assembly, the preheating assembly includes a gas circulation pump, the air inlet of the gas circulation pump is fixedly communicated with an air inlet pipe, one end of the air inlet pipe penetrates into the interior of the heat preservation box, an L-shaped installation rod is installed on one side of the laser welding machine body by screws, a preheating cylinder is installed inside the L-shaped installation rod, the air outlet of the gas circulation pump is fixedly communicated with an air outlet pipe, and one end of the air outlet pipe penetrates into the interior of the preheating cylinder.

[0008] Preferably, the support assembly includes a support base, support columns are fixedly installed at the bottom of the support base, a lifting column is slidably connected to the inner wall of the support column, a lifting groove is provided on the outer surface of the lifting column, and a plurality of tooth grooves are provided on one side of the lifting groove. By sliding the lifting column inside the support column, the operating table can be adjusted in height according to the different thicknesses of the parts, so that the operating table is in the most suitable position.

[0009] Preferably, rotation holes are provided on both sides of the support column, a toothed rod is rotatably connected between the inner walls of the two rotation holes, and the outer surface of the toothed rod is meshed with the inner wall of the tooth groove. The rotation holes play a role in supporting the toothed rod to prevent the toothed rod from falling off during rotation.

[0010] Preferably, a positive and negative motor is provided on one side of the support column through an auxiliary frame, the output shaft of the positive and negative motor is fixedly connected to one end of the toothed rod, and the top end of the lifting column is fixedly connected to an operating table. By starting the positive and negative motor, the output shaft of the positive and negative motor rotates, thereby driving the toothed rod to rotate. Under the meshing action of the toothed rod and the tooth groove, the lifting operation of the lifting column can be realized.

[0011] Preferably, a plurality of positioning components are fixedly installed on the top of the operation table. The positioning component includes a fixed block. One side of the fixed block near the bottom is fixedly installed with an elastic ring. The outer surface of the elastic ring is fixedly installed with a positioning block. By pressing the positioning block towards the fixed block, the elastic ring is squeezed and deformed. When the positioning block clamps the part to be processed and then the positioning block is released, under the action of the elastic recovery of the elastic ring, the part to be processed is clamped, preventing the part from being unstable and resulting in inaccurate welding positions.

[0012] Preferably, a telescopic rod is fixed on one side of the positioning block. Limiting sliders are fixedly installed on both sides of the telescopic rod. Two hollow rods are fixedly connected to one side of the fixed block near the top. The inner walls of the two hollow rods are respectively slidably connected to the outer surfaces of the two limiting sliders. The sliding of the limiting sliders in the hollow rods can effectively prevent the positioning block from tilting upwards during the clamping process, improving the positioning effect of the positioning block on the part to be processed.

[0013] Preferably, a plurality of plug-in fasteners are fixedly installed on the bottom of the heat preservation box. A plurality of card holes are opened on the bottom of the installation block. The inner walls of the plurality of card holes are respectively snap-fitted with the outer surfaces of the plurality of plug-in fasteners. By inserting the plug-in fasteners into the card holes, the installation of the installation block is strengthened, preventing the heat sink and the heat pipe from falling off during use.

[0014] Preferably, a fixed rod is fixedly installed on the outer surface of the fixed ring. A limiting opening is opened on the outer surface of the fixed rod. A limiting sliding rod is fixedly installed on one side of the laser welding machine body. By sliding the limiting sliding rod in the inner wall of the limiting opening, the position height of the heat preservation box is restricted, preventing the heat preservation box from detaching and falling.

[0015] Preferably, the outer surface of the limiting sliding rod is slidably connected to the inner wall of the limiting opening. A first electric push rod is arranged on the outer surface of the fixed rod. One end of the first electric push rod is fixedly installed with a connecting block. By starting the first electric push rod, the horizontal position of the heat pipe can be adjusted, and by starting the second electric push rod, the height of the heat pipe can be adjusted, enabling the heat pipe to be adjusted to a position with better waste heat absorption.

[0016] Preferably, a second electric push rod is arranged on the outer surface of the connecting block. One end of the second electric push rod is fixedly connected to the top of the laser welding machine body. Under the connecting action of the connecting block, the first electric push rod and the second electric push rod can be connected and used together.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. During use, by starting the first electric push rod and the second electric push rod, the heat absorption end of the heat pipe is brought close to the welding area. After the heat pipe concentrates the heat, it dissipates the heat from its heat dissipation end to the heat sink, and the heat sink dissipates the heat into the insulation box, realizing the recovery of waste heat for convenient reuse, solving the problem that the heat generated at the welding area during laser welding is not recovered and reused, which will lead to energy waste and environmental pollution. At this time, by starting the gas circulation pump, the gas circulation pump continuously extracts the hot air in the insulation box through the intake pipe and outputs it through the outlet pipe, so that the hot air is ejected from the outlet of the preheating cylinder, thereby realizing the preheating of automotive parts, effectively increasing the temperature of the parts before welding, thus avoiding the occurrence of cold cracks in the welded part and improving the welding quality.

[0019] 2. During use, by sliding the lifting column inside the support column, the operating platform can be adjusted in height according to the different thicknesses of the parts, so that the operating platform is in the most suitable position. The rotating hole plays a role in supporting the toothed rod to prevent the toothed rod from falling off during rotation. By starting the forward and reverse motor, the output shaft of the forward and reverse motor rotates, driving the toothed rod to rotate. Under the meshing action of the toothed rod and the tooth groove, the lifting operation of the lifting column can be realized. By pressing the positioning block towards the fixed block, the elastic ring is squeezed and deformed. When the positioning block clamps the part to be processed and then releases the positioning block, under the action of the elastic recovery of the elastic ring, the part to be processed is clamped, preventing the part from being unstable and resulting in inaccurate welding positions. The limiting slider sliding inside the hollow rod can effectively prevent the positioning block from tilting upwards during the clamping process, improving the positioning effect of the positioning block on the part to be processed.

[0020] 3. During use, by inserting the plug-in buckle into the card hole, the installation of the mounting block is strengthened to prevent the heat sink and the heat pipe from falling off during use. By sliding the limiting slide rod on the inner wall of the limiting port, the position height of the insulation box is restricted to prevent the insulation box from detaching and falling. By starting the first electric push rod, the horizontal position of the heat pipe can be adjusted, and by starting the second electric push rod, the height of the heat pipe can be adjusted, so that the heat pipe can be adjusted to a position with better waste heat absorption. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the front perspective view of a laser welding device for automotive part processing according to the present invention;

[0022] Figure 2 is the rear perspective view of a laser welding device for automotive part processing according to the present invention;

[0023] Figure 3 is the partial perspective view of the preheating assembly of a laser welding device for automotive part processing according to the present invention;

[0024] Figure 4 Stereogram of the heat recovery component part of a laser welding device for automobile part processing according to the present invention;

[0025] Figure 5 Stereogram of the unfolded structure of the heat recovery component part of a laser welding device for automobile part processing according to the present invention;

[0026] Figure 6 Stereogram of the positioning component part of a laser welding device for automobile part processing according to the present invention;

[0027] Figure 7 Sectional stereogram of the support component of a laser welding device for automobile part processing according to the present invention;

[0028] Figure 8 Stereogram of the unfolded structure of the support component of a laser welding device for automobile part processing according to the present invention.

[0029] In the figure:

[0030] 1. Laser welding machine body; 2. Support component; 201. Support base; 202. Support column; 203. Lifting column; 204. Lifting groove; 205. Reversible motor; 206. Rotating hole; 207. Rack; 208. Tooth groove; 3. Operating table; 4. Positioning component; 401. Fixed block; 402. Hollow rod; 403. Telescopic rod; 404. Limit slider; 405. Elastic ring; 406. Positioning block; 5. Heat recovery component; 501. Heat preservation box; 502. Installation block; 503. Heat pipe; 504. Card hole; 505. Heat sink; 506. Insert type buckle; 507. First electric push rod; 508. Second electric push rod; 509. Connecting block; 510. Fixed rod; 511. Limit port; 512. Limit slide rod; 513. Fixed ring; 6. Preheating component; 601. L-shaped installation rod; 602. Preheating cylinder; 603. Air outlet pipe; 604. Gas circulation pump; 605. Air inlet pipe; 7. Welding head. Embodiment

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figure 1-8, the present invention provides a technical solution: a laser welding device for automobile part processing, comprising: a laser welding machine body 1 and a support assembly 2, a welding head 7 is arranged on the outer surface of the laser welding machine body 1; a heat recovery assembly 5, the heat recovery assembly 5 includes a fixing ring 513, the inner wall of the fixing ring 513 is fixedly connected with a heat preservation box 501, a mounting block 502 is movably connected near the bottom of the inner wall of the heat preservation box 501, a heat sink 505 is arranged on the top of the mounting block 502, and a plurality of heat pipes 503 are embedded in the mounting block 502; a preheating assembly 6, the preheating assembly 6 includes a gas circulation pump 604, an air inlet pipe 605 is fixedly communicated with the air inlet of the gas circulation pump 604, one end of the air inlet pipe 605 penetrates into the interior of the heat preservation box 501, an L-shaped mounting rod 601 is installed on one side of the laser welding machine body 1 by screws, a preheating cylinder 602 is installed inside the L-shaped mounting rod 601, an air outlet pipe 603 is fixedly communicated with the air outlet of the gas circulation pump 604, and one end of the air outlet pipe 603 penetrates into the interior of the preheating cylinder 602. During use, the automobile part to be processed is placed on the tabletop of the operating table 3, and the positioning assembly 4 is used to clamp and position the part, so as to prevent large displacement of the part to be processed during welding. During welding, by starting the first electric push rod 507 and the second electric push rod 508, the heat absorption end of the heat pipe 503 is close to the welding place, and the heat pipe 503 concentrates the heat and then dissipates it from its heat dissipation end to the heat sink 505, and the heat sink 505 dissipates the heat into the heat preservation box 501, realizing the recovery of the waste heat for reuse, solving the problem that the waste heat generated at the welding place during laser welding is not recovered and reused, which will lead to energy waste and environmental pollution. At this time, by starting the gas circulation pump 604, the gas circulation pump 604 continuously extracts the hot air in the heat preservation box 501 through the air inlet pipe 605 and outputs it through the air outlet pipe 603, so that the hot air is ejected from the outlet of the preheating cylinder 602, thereby realizing the preheating of the automobile part, effectively increasing the temperature of the part before welding, thus avoiding the occurrence of cold cracks in the welded part and improving the welding quality.

[0033] As Figure 7 and Figure 8 shown, the support assembly 2 includes a support base 201, a support column 202 is fixedly installed at the bottom of the support base 201, a lifting column 203 is slidably connected to the inner wall of the support column 202, a lifting groove 204 is formed on the outer surface of the lifting column 203, and a plurality of tooth grooves 208 are formed on one side of the lifting groove 204. By sliding the lifting column 203 inside the support column 202, the operating table 3 can be adjusted in height according to the different thicknesses of the parts, so that the operating table 3 is in the most suitable position.

[0034] As Figure 7 and Figure 8As shown, rotation holes 206 are formed on both sides of the support column 202. A toothed rod 207 is rotatably connected between the inner walls of the two rotation holes 206. The outer surface of the toothed rod 207 is meshed with the inner wall of the tooth groove 208. The rotation holes 206 play a role in supporting the toothed rod 207 to prevent the toothed rod 207 from falling off during rotation.

[0035] As Figure 7 and Figure 8 shown, a reversible motor 205 is arranged on one side of the support column 202 through an auxiliary frame. The output shaft of the reversible motor 205 is fixedly connected to one end of the toothed rod 207. The top end of the lifting column 203 is fixedly connected with an operating platform 3. When the operating platform 3 needs to be lifted or lowered, by starting the reversible motor 205, the output shaft of the reversible motor 205 rotates, thereby driving the toothed rod 207 to rotate. Under the meshing action of the toothed rod 207 and the tooth groove 208, the lifting and lowering operation of the lifting column 203 can be realized.

[0036] As Figure 1 、 Figure 2 and Figure 6 shown, a plurality of positioning components 4 are fixedly installed on the top of the operating platform 3. The positioning component 4 includes a fixed block 401. One side of the fixed block 401 near the bottom is fixedly installed with an elastic ring 405. The outer surface of the elastic ring 405 is fixedly installed with a positioning block 406. By pressing the positioning block 406 towards the fixed block 401, the elastic ring 405 is squeezed and deformed. When the positioning block 406 clamps the part to be processed, the positioning block 406 is released. Under the action of the elastic recovery of the elastic ring 405, the part to be processed is clamped, preventing the part from being unstable and resulting in inaccurate welding positions.

[0037] As Figure 1 、 Figure 2 and Figure 6 shown, a telescopic rod 403 is fixed on one side of the positioning block 406. Limiting sliders 404 are fixed on both sides of the telescopic rod 403. Two hollow rods 402 are fixedly connected to one side of the fixed block 401 near the top. The inner walls of the two hollow rods 402 are respectively slidably connected to the outer surfaces of the two limiting sliders 404. The sliding of the limiting sliders 404 in the hollow rods 402 can effectively prevent the positioning block 406 from tilting upwards during the clamping process, improving the positioning effect of the positioning block 406 on the part to be processed.

[0038] As Figure 1-5 shown, a plurality of plug-in fasteners 506 are fixedly installed at the bottom of the heat preservation box 501. A plurality of card holes 504 are formed at the bottom of the installation block 502. The inner walls of the plurality of card holes 504 are respectively snap-fitted with the outer surfaces of the plurality of plug-in fasteners 506. By inserting the plug-in fasteners 506 into the card holes 504, the installation of the installation block 502 is strengthened, preventing the heat sink 505 and the heat pipe 503 from falling off during use.

[0039] As Figure 1-5 shown, a fixing rod 510 is fixedly installed on the outer surface of the fixing ring 513. A limiting opening 511 is formed on the outer surface of the fixing rod 510. A limiting sliding rod 512 is fixedly installed on one side of the laser welding machine body 1. By sliding the limiting sliding rod 512 on the inner wall of the limiting opening 511, the position height of the heat preservation box 501 is restricted to prevent the heat preservation box 501 from falling off.

[0040] As Figure 1-5 shown, the outer surface of the limiting sliding rod 512 is slidably connected to the inner wall of the limiting opening 511. A first electric push rod 507 is arranged on the outer surface of the fixing rod 510. One end of the first electric push rod 507 is fixedly installed with a connecting block 509. By starting the first electric push rod 507, the horizontal position of the heat pipe 503 can be adjusted, and by starting the second electric push rod 508, the height of the heat pipe 503 can be adjusted, so that the heat pipe 503 can be adjusted to a position with better waste heat absorption.

[0041] As Figure 1-5 shown, a second electric push rod 508 is arranged on the outer surface of the connecting block 509. One end of the second electric push rod 508 is fixedly connected to the top of the laser welding machine body 1. Under the connection action of the connecting block 509, the first electric push rod 507 and the second electric push rod 508 can be connected and used together.

[0042] Usage method and working principle of this device: During use, place the automotive part to be processed on the tabletop of the operation table 3, and use the positioning component 4 to clamp and position the part. During welding, by starting the first electric push rod 507 and the second electric push rod 508, the heat absorption end of the heat pipe 503 is brought close to the welding area. After concentrating the heat, the heat pipe 503 dissipates the heat from its heat dissipation end to the heat sink 505, and the heat sink 505 dissipates the heat into the insulation box 501 to achieve waste heat recovery. At this time, by starting the gas circulation pump 604, the gas circulation pump 604 continuously extracts the hot air in the insulation box 501 through the intake pipe 605 and outputs it through the outlet pipe 603, so that the hot air is ejected from the outlet of the preheating cylinder 602, thereby realizing preheating of the automotive part. By sliding the lifting column 203 inside the support column 202, the operation table 3 can be adjusted in height according to the thickness of the part, so as to place the operation table 3 in the most suitable position. The rotating hole 206 supports the rack 207 to prevent the rack 207 from falling off during rotation. By starting the forward and reverse motor 205, the output shaft of the forward and reverse motor 205 rotates, driving the rack 207 to rotate. Under the meshing action of the rack 207 and the tooth groove 208, the lifting operation of the lifting column 203 can be realized. By pressing the positioning block 406 towards the fixed block 401, the elastic ring 405 is squeezed and deformed. When the positioning block 406 clamps the part to be processed and then the positioning block 406 is released, under the action of the elastic recovery of the elastic ring 405, the part to be processed is clamped. The sliding of the limiting slider 404 inside the hollow rod 402 can effectively prevent the positioning block 406 from tilting upwards during the clamping process, improving the positioning effect of the positioning block 406 on the part to be processed. By inserting the plug-in buckle 506 into the card hole 504, the installation of the mounting block 502 is strengthened to prevent the heat sink 505 and the heat pipe 503 from falling off during use. By sliding the limiting slide rod 512 on the inner wall of the limiting port 511, the position height of the insulation box 501 is restricted to prevent the insulation box 501 from detaching and falling. By starting the first electric push rod 507, the horizontal position of the heat pipe 503 can be adjusted, and by starting the second electric push rod 508, the height of the heat pipe 503 can be adjusted, so that the heat pipe 503 can be adjusted to a position with better waste heat absorption.

[0043] The wiring diagrams of the forward and reverse motor 205, the first electric push rod 507, the second electric push rod 508, and the gas circulation pump 604 in this invention belong to the common knowledge in the art. Their working principles are well-known technologies, and their models are selected according to actual use. Therefore, the control methods and wiring arrangements of the forward and reverse motor 205, the first electric push rod 507, the second electric push rod 508, and the gas circulation pump 604 will not be explained in detail.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A laser welding device for automobile part processing, characterized in that, Including: A laser welding machine body (1) and a support assembly (2), and a welding head (7) is arranged on the outer surface of the laser welding machine body (1); A heat recovery assembly (5), the heat recovery assembly (5) includes a fixing ring (513), an insulating box (501) is fixedly connected to the inner wall of the fixing ring (513), a mounting block (502) is movably connected to the inner wall of the insulating box (501) near the bottom, a heat sink (505) is arranged on the top of the mounting block (502), and a plurality of heat pipes (503) are embedded in the mounting block (502); A preheating assembly (6), the preheating assembly (6) includes a gas circulation pump (604), an air inlet pipe (605) is fixedly communicated with the air inlet of the gas circulation pump (604), one end of the air inlet pipe (605) penetrates into the insulating box (501), an L-shaped mounting rod (601) is installed on one side of the laser welding machine body (1) by screws, a preheating cylinder (602) is installed inside the L-shaped mounting rod (601), an air outlet pipe (603) is fixedly communicated with the air outlet of the gas circulation pump (604), and one end of the air outlet pipe (603) penetrates into the preheating cylinder (602); A control console (3) is fixedly connected to the support assembly (2), and a plurality of positioning assemblies (4) are fixedly installed on the top of the control console (3). The positioning assembly (4) includes a fixing block (401), an elastic ring (405) is fixedly installed on one side of the fixing block (401) near the bottom, a positioning block (406) is fixedly installed on the outer surface of the elastic ring (405), a telescopic rod (403) is fixed on one side of the positioning block (406), limiting sliders (404) are fixed on both sides of the telescopic rod (403), and two hollow rods (402) are fixedly connected to one side of the fixing block (401) near the top. The inner walls of the two hollow rods (402) are respectively slidably connected to the outer surfaces of the two limiting sliders (404).

2. The laser welding device for automobile part processing according to claim 1, wherein: The support assembly (2) includes a support base (201), a support column (202) is fixedly installed at the bottom of the support base (201), a lifting column (203) is slidably connected to the inner wall of the support column (202), a lifting groove (204) is formed on the outer surface of the lifting column (203), and a plurality of tooth grooves (208) are formed on one side of the lifting groove (204).

3. The laser welding device for automobile part processing according to claim 2, characterized in that: Rotation holes (206) are formed on both sides of the support column (202), a toothed rod (207) is rotatably connected between the inner walls of the two rotation holes (206), and the outer surface of the toothed rod (207) is meshed with the inner wall of the tooth groove (208).

4. The laser welding device for automotive part processing according to claim 3, wherein: A positive and negative motor (205) is arranged on one side of the support column (202) through an auxiliary frame, an output shaft of the positive and negative motor (205) is fixedly connected to one end of the toothed rod (207), and the top end of the lifting column (203) is fixedly connected to the control console (3).

5. The laser welding device for automobile part processing according to claim 4, characterized in that: A plurality of plug-in buckles (506) are fixedly installed at the bottom of the incubator (501), and a plurality of card holes (504) are formed at the bottom of the mounting block (502). The inner walls of the plurality of card holes (504) are respectively engaged with the outer surfaces of the plurality of plug-in buckles (506).

6. The laser welding device for automotive part processing according to claim 5, characterized in that: A fixing rod (510) is fixedly installed on the outer surface of the fixing ring (513), a limiting port (511) is formed on the outer surface of the fixing rod (510), and a limiting sliding rod (512) is fixedly installed on one side of the laser welding machine body (1).

7. The laser welding device for automobile part processing according to claim 6, wherein: The outer surface of the limiting sliding rod (512) is slidably connected with the inner wall of the limiting port (511), a first electric push rod (507) is arranged on the outer surface of the fixing rod (510), and a connecting block (509) is fixedly installed at one end of the first electric push rod (507).

8. The laser welding device for automotive part processing according to claim 7, characterized in that: A second electric push rod (508) is arranged on the outer surface of the connecting block (509), and one end of the second electric push rod (508) is fixedly connected with the top of the laser welding machine body (1).

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