Laser cutting device for automobile parts

Abstract

The present invention relates to the technical field of automobile parts cutting, and discloses an automobile parts laser cutting device, comprising a laser welding body, wherein first slide grooves are provided on the left and right sides of the laser welding body, a connecting frame is slidably connected to the interior of the first slide groove, and a first electric push rod is fixedly connected to the interior of the connecting frame. The welding slag on the automobile parts plate can be polished and cleaned by moving the grinding roller back and forth, and the automobile parts plate can be polished by moving the grinding roller left and right while performing the back and forth grinding. This composite motion mode makes the force exerted by the grinding roller on impurities such as welding slag more complex and diversified, and has not only lateral grinding force, but also vertical impact force and shear force. The combined action of multiple forces can more effectively crush and peel off the welding slag, so that it falls off from the surface of the parts faster. By cleaning the surface welding slag, the automobile parts plate can restore its original metallic luster and aesthetics.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts cutting, in particular to an automobile parts laser cutting device. Background Art

[0002] With the rapid development of the automotive industry, the manufacturing precision and quality requirements for automotive parts are increasing day by day. Automotive parts are diverse, including engine components, frame structures, and body panels, all with complex and diverse shapes and structures. The development trends of improved automotive performance, lightweight design, and aesthetically pleasing appearance pose unprecedented challenges to the machining precision and quality of parts.

[0003] For example, publication number CN118720397A discloses a cutting device for aluminum veneer, which relates to the technical field of aluminum veneer manufacturing, including a laser cutting body, a leveling device fixedly installed on one side of the top of the laser cutting body, a positioning component slidingly installed on the top of the laser cutting body, and dust suction devices fixedly installed on both sides of the inside of the laser cutting body. The above scheme limits the aluminum veneer to avoid deviation of the aluminum veneer after leveling, thereby making the cutting of the aluminum veneer more precise and improving the effect of cutting the aluminum veneer. At the same time, a first laser cutting head and a second laser cutting head are set to cut the aluminum veneer according to the thickness of the aluminum veneer, avoiding long cutting time for thicker aluminum veneer, and high-temperature laser cutting process may cause thermal damage to the surface of the aluminum veneer, such as surface discoloration or burn marks, to avoid deviation of the aluminum veneer during laser cutting. At the same time, the cutting part of the aluminum veneer is cooled, thereby improving the quality of aluminum veneer cutting.

[0004] The laser cutting process generates a large amount of heat, which causes the edges of the aluminum veneer to melt and form welding slag. If this welding slag adheres to the top of the aluminum veneer, it will form rough, irregular protrusions on the surface of the aluminum veneer, damaging the originally smooth and flat surface of the aluminum veneer, causing the aluminum veneer to lose its original metallic luster and aesthetics. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a laser cutting device for automobile parts in view of the above-mentioned deficiencies in the prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a laser cutting device for automobile parts, including a laser welding body, a first slide groove is opened on the left and right sides of the laser welding body, the interior of the first slide groove is slidably connected to a connecting frame, the interior of the connecting frame is fixedly connected to a first electric push rod, one end of the first electric push rod is fixedly connected to a first fixed plate, the interior of the connecting frame is fixedly connected to a slide rod, the outer wall of the slide rod is movably sleeved with a first slide sleeve, the first slide sleeve is fixedly connected to the bottom of the first fixed plate, the bottom of the first slide sleeve is fixedly connected to the cutting machine body through a telescopic rod, the top of the laser welding body is fixedly connected to a vertical plate, the front of the vertical plate is hinged with a first clamp, the first clamp includes a first An opening frame, a first clamping plate, and a first bolt, the first opening frame is hinged on the front face of the vertical plate, the internal thread of the first opening frame is connected to the first bolt, the bottom of the first bolt is fixedly connected to the first clamping plate, a square hole is opened inside the laser welding body, a cleaning mechanism is provided on the top of the laser welding body, the cleaning mechanism includes a second fixing plate, the second fixing plate is fixedly connected to the top of the laser welding body, the back of the second fixing plate is fixedly connected to the second electric push rod, the top of the laser welding body is fixedly connected to two slide rails, the outer walls of the two slide rails are respectively slidably connected to the second sliding sleeves, the second sliding sleeves are fixedly connected to one end of the second electric push rod, and the interiors of the two second sliding sleeves are provided with second sliding grooves. The two second slide grooves are internally slidably connected with a first slider, and the two first sliders are fixedly connected to the inner wall of the second slide groove by a limit spring. The top of the first slider is fixedly connected to an electric motor, and the output end of the electric motor is fixedly connected to a rotating shaft through a coupling. The outer wall of the rotating shaft is fixedly connected to a grinding roller, and the rotation of the grinding roller on the welding slag on the automobile parts plate can promote the shedding of the welding slag. The top of the laser welding body is fixedly connected to a connecting plate, and a plurality of first protrusions are fixedly connected to the right side of the connecting plate. The left side of the electric motor is fixedly connected to the second protrusion. The first protrusion is in contact with the second protrusion. When the first protrusion is in contact with the second protrusion, the electric motor will be laterally displaced, thereby achieving this composite motion mode. The grinding roller's force on impurities such as welding slag is made more complex and diversified, with not only lateral grinding force, but also vertical impact force and shear force. The combined action of multiple forces can more effectively crush and peel off the welding slag, so that it falls off from the surface of the component faster. A knocking mechanism is provided inside the laser welding body, and the knocking mechanism includes a Z-shaped rod. The middle section of the Z-shaped rod contacts the side of the automobile component. When the Z-shaped rod moves left and right, it continuously knocks the side of the automobile component plate through its middle section, thereby promoting the loosening of the welding slag. A plurality of third protrusions are fixedly connected to the interior of the laser welding body. The internal movement of the Z-shaped rod is penetrated by a knocking rod and extends to its upper and lower ends. The bottom of the knocking rod contacts the outer wall of the third protrusion.The outer wall of the knock rod is fixedly connected to a fixing ring. The knock rod can move up and down through the contact between the knock rod and the third protrusion, so that the bottom of the automobile component plate can be knocked by the up and down movement of the knock rod to promote the loosening of welding slag.

[0007] Preferably, a dumping and chip removal mechanism is provided inside the laser welding body, and the dumping and chip removal mechanism includes two L-shaped rods, the two L-shaped rods are fixedly connected to the bottom of the two second sliding sleeves, and one end of the two L-shaped rods is respectively fixedly connected to a first resistance block.

[0008] Preferably, two vertical rods are attached to the inner bottom side of the laser welding body, and two third sliding grooves are opened inside the laser welding body. The insides of the two third sliding grooves are respectively slidably connected to the second sliders, and the tops of the two second sliders are fixedly connected to the L-shaped plates.

[0009] Preferably, one end of the two L-shaped plates movably passes through the two vertical rods and extends outward, the other ends of the two L-shaped plates are respectively fixedly connected to a second interference block, the two vertical rods are respectively hinged with a second clamp, the second opening frame is hinged to the top of the vertical rod, the internal thread of the second opening frame is connected to a second bolt, and the bottom of the second bolt is fixedly connected to a second clamp, when the first interference block contacts the second interference block, the second interference block will move to the right, thereby moving to the right through the L-shaped plate, and releasing the limit on the vertical rod.

[0010] Preferably, an inclined groove is provided inside the laser welding body, and a wavy arc groove is provided on the inclined surface of the inclined groove. The wavy arc groove is provided so that the vertical rod can shake when sliding, thereby causing the automobile parts plate inside the second clamp on the top to shake, causing the welding slag to slide off, and when the knocking rod moves to the square hole, the knocking rod will fall downward after breaking away from the resistance of the third protrusion and fall into the inside of the square hole. It will be limited by the fixing ring and will not fall completely, so as to avoid the erection of the knocking rod affecting the subsequent tilting of the automobile parts plate.

[0011] The present invention adopts the above technical solution, which can bring the following beneficial effects:

[0012] 1. This kind of automobile parts laser cutting device can grind and clean the welding slag on the automobile parts plate by moving the grinding roller back and forth. It can also move left and right to grind the automobile parts plate while moving back and forth. This composite motion makes the grinding roller's force on impurities such as welding slag more complex and diversified. It not only has horizontal grinding force, but also vertical impact force and shear force. The combined action of multiple forces can more effectively crush and peel off the welding slag, so that it falls off from the surface of the parts faster. By cleaning the surface welding slag, the automobile parts plate can restore its original metallic luster and beauty.

[0013] 2. This kind of laser cutting device for automobile parts can impact the side of the automobile parts plate by moving the Z-shaped rod left and right. The side knocking can make it easier to separate the welding slag from the edge, and the bottom of the automobile parts is properly knocked by the knocking rod. The knocking on the bottom can make the welding slag more easily loosened under the combined action of gravity and impact force, so that it falls off from the surface of the parts faster. By knocking the parts from different angles, the welding slag is subjected to impact forces in different directions, which can more effectively destroy the bonding force between the welding slag and the parts, causing the welding slag to loosen and fall in all directions, further improving the cleanliness of the parts, and thus restoring the original metallic luster and aesthetics of the automobile parts plate.

[0014] 3. This kind of automobile parts laser cutting device can move the vertical rod to the inclined groove, which can cause the clamped automobile parts plate to tilt under the action of the inclined surface, thereby causing the welding slag to slide down. In the process of moving on the inclined surface, it will shake under the action of the wavy arc groove, promoting the shaking of the automobile parts plate, thereby causing the welding slag on the plate to shake, further promoting the sliding of the welding slag, so that the automobile parts plate can restore its original metallic luster and beauty after cleaning the welding slag. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of the structure of the present invention;

[0016] Figure 2 This is a first cross-sectional view of the structure of the present invention;

[0017] Figure 3 This is an enlarged view of structure A of the present invention;

[0018] Figure 4 This is a second cross-sectional view of the structure of the present invention;

[0019] Figure 5 This is an enlarged view of structure B of the present invention;

[0020] Figure 6 This is a third cross-sectional view of the structure of the present invention;

[0021] Figure 7 This is an enlarged view of structure C of the present invention;

[0022] Figure 8 This is a motion trajectory diagram of the structure of the present invention.

[0023] In the figure: 1. Laser welding machine body; 2. First slide; 3. Connecting frame; 41. First electric push rod; 42. First fixed plate; 43. Slide rod; 44. First sliding sleeve; 45. Cutting machine body; 51. Vertical plate; 52. First clamp; 6. Cleaning mechanism; 611. Second fixed plate; 612. Second electric push rod; 613. Slide rail; 614. Second sliding sleeve; 615. Second slide; 616. First slider; 617. Electric motor; 618. Rotating shaft; 619. Grinding roller. 620, connecting plate; 621, first protrusion; 622, second protrusion; 7, knocking mechanism; 711, Z-shaped rod; 712, third protrusion; 713, knocking rod; 714, fixing ring; 8, dumping and chip removal mechanism; 811, L-shaped rod; 812, first interference block; 813, third slide groove; 814, second slider; 815, L-shaped plate; 816, second interference block; 817, vertical rod; 818, second clamp; 819, inclined groove; 820, wavy arc groove; 9, square hole. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-7One embodiment of the present invention is as follows: a laser cutting device for automobile parts, comprising a laser welding body 1, wherein first slide grooves 2 are provided on the left and right sides of the laser welding body 1, a connecting frame 3 is slidably connected to the interior of the first slide groove 2, a first electric push rod 41 is fixedly connected to the interior of the connecting frame 3, one end of the first electric push rod 41 is fixedly connected to a first fixed plate 42, a sliding rod 43 is fixedly connected to the interior of the connecting frame 3, a first sliding sleeve 44 is movably sleeved on the outer wall of the sliding rod 43, the first sliding sleeve 44 is fixedly connected to the bottom of the first fixed plate 42, the bottom of the first sliding sleeve 44 is fixedly connected to the cutting machine body 45 via a telescopic rod, and a vertical plate 51 is fixedly connected to the top of the laser welding body 1. The front of the vertical plate 51 is hinged with a first clamp 52, and the first clamp 52 includes a first opening frame, a first clamping plate, and a first bolt. The first opening frame is hinged on the front of the vertical plate 51, and the internal thread of the first opening frame is connected to the first bolt. The bottom of the first bolt is fixedly connected to the first clamping plate. A square hole 9 is opened inside the laser welding body 1. A cleaning mechanism 6 is provided on the top of the laser welding body 1. The cleaning mechanism 6 includes a second fixing plate 611, and the second fixing plate 611 is fixedly connected to the top of the laser welding body 1. The back of the second fixing plate 611 is fixedly connected to the second electric push rod 612. The top of the laser welding body 1 is fixedly connected to two slide rails 613. The two slide rails 6 The outer walls of 13 are respectively slidably connected to second sleeves 614, and the second sleeves 614 are fixedly connected to one end of the second electric push rod 612. A second slide groove 615 is provided inside the two second sleeves 614, and a first slider 616 is slidably connected inside the two second slide grooves 615. The two first sliders 616 are fixedly connected to the inner walls of the second slide groove 615 through a limit spring. The top of the first slider 616 is fixedly connected to an electric motor 617, and the output end of the electric motor 617 is fixedly connected to a rotating shaft 618 through a coupling. The outer wall of the rotating shaft 618 is fixedly connected to a grinding roller 619, and the rotation of the grinding roller 619 on the welding slag on the automobile parts plate can promote the removal of the welding slag. The top of the laser welding body 1 is fixedly connected with a connecting plate 620, and the right side of the connecting plate 620 is fixedly connected with a plurality of first protrusions 621. The left side of the electric motor 617 is fixedly connected with a second protrusion 622. The first protrusion 621 contacts the second protrusion 622. When the first protrusion 621 contacts the second protrusion 622, the electric motor 617 will be displaced laterally. This composite motion can make the force of the grinding roller 619 on impurities such as welding slag more complex and diversified, with not only lateral grinding force, but also vertical impact force and shear force. The combined action of multiple forces can more effectively crush and peel off the welding slag, so that it falls off from the surface of the component faster.

[0026] Working principle: Place the auto parts plate inside the first clamp 52 and the second clamp 818, and rotate the first bolt and the second bolt. The first bolt and the second bolt respectively drive the first clamp and the second clamp to move downward to fix the auto parts, and weld the auto parts through the cutting machine body 45. Welding slag will remain after welding. Start the electric motor 617, and the electric motor 617 drives the grinding roller 619 on the outer wall of the rotating shaft 618 to rotate, and start the second electric push rod 612 to push the second sliding sleeve 614 to slide along the slide rail 613, so that the grinding roller 619 can be driven to move back and forth to grind the welding slag on the top of the auto parts plate. , and during the movement of the electric motor 617, the second protrusion 622 will contact the first protrusion 621. Under the action of the first protrusion 621, the second protrusion 622 will drive the first slider 616 to move left and right inside the second slide groove 615, thereby driving the grinding roller 619 to move left and right. While moving back and forth for grinding, it can also move left and right to grind the automobile parts plate. This composite motion mode makes the force of the grinding roller 619 on impurities such as welding slag more complex and diversified. It not only has lateral grinding force, but also impact force and shear force in the front and rear directions. The combined action of multiple forces can more effectively crush and peel off the welding slag, so that it falls off from the surface of the parts faster.

[0027] See also Figure 1-7 On the basis of the above embodiment, in another embodiment of the present invention, a knocking mechanism 7 is provided inside the laser welding body 1, and the knocking mechanism 7 includes a Z-shaped rod 711. The middle section of the Z-shaped rod 711 contacts the side of the automobile part. When the Z-shaped rod 711 moves left and right, it will continuously knock the side of the automobile part plate through its middle section, thereby promoting the loosening of the welding slag. A plurality of third protrusions 712 are fixedly connected to the interior of the laser welding body 1. A knocking rod 713 is movable inside the Z-shaped rod 711 and extends to its upper and lower ends. The bottom of the knocking rod 713 contacts the outer wall of the third protrusion 712. The outer wall of the knocking rod 713 is fixedly connected to a fixing ring 714. The knocking rod 713 can be moved up and down by contacting the third protrusion 712, so that the bottom of the automobile part plate can be knocked by the up and down movement of the knocking rod 713, thereby promoting the loosening of the welding slag.

[0028] Working principle: When the first slider 616 moves left and right, it will drive the Z-shaped rod 711 to move left and right. When the Z-shaped rod 711 moves left and right, it will continuously knock the side of the automobile component plate through its middle section, thereby promoting the loosening of the welding slag. When the Z-shaped rod 711 moves forward and backward, it will drive the knocking rod 713 to move forward and backward. The knocking rod 713 will move up and down under the action of the third protrusion 712. The up and down movement of the knocking rod 713 can knock the bottom of the automobile component plate, thereby promoting the loosening of the welding slag. By knocking the components from different angles, the welding slag is subjected to impact forces in different directions, which can more effectively destroy the bonding force between the welding slag and the components, causing the welding slag to loosen and fall in all directions.

[0029] See also Figure 1-7 On the basis of the above embodiment, in another embodiment of the present invention, a dumping and chip removal mechanism 8 is provided inside the laser welding body 1, and the dumping and chip removal mechanism 8 includes two L-shaped rods 811, and the two L-shaped rods 811 are fixedly connected to the bottom of the two second sliding sleeves 614, and one end of the two L-shaped rods 811 is fixedly connected to the first interference block 812, and the inner bottom side of the laser welding body 1 is affixed with two vertical rods 817, and the laser welding body 1 has two third sliding grooves 813 provided inside, and the second sliders 814 are slidably connected inside the two third sliding grooves 813, and the tops of the two second sliders 814 are fixedly connected with L-shaped plates 815, and one end of the two L-shaped plates 815 movably passes through the two vertical rods 817 and extends outward, and the other ends of the two L-shaped plates 815 are fixedly connected to the second interference blocks 816, and the two vertical rods 817 are hinged with second clamps 818, and the second opening frame is hinged at the top of the vertical rod 817. The internal thread is connected with a second bolt, and the bottom of the second bolt is fixedly connected with a second clamping plate. When the first interference block 812 contacts the second interference block 816, the second interference block 816 will move to the right, thereby moving to the right through the L-shaped plate 815, releasing the limit on the vertical rod 817, and an inclined groove 819 is provided inside the laser welding body 1. A wavy arc groove 820 is provided on the inclined surface of the inclined groove 819. The wavy arc groove 820 is provided to allow the vertical rod 817 to shake when sliding, thereby driving the automobile parts plate inside the top second clamp 818 to shake, causing the welding slag to slide off, and when the knocking rod 713 moves to the square hole 9, the knocking rod 713 will break away from the interference of the third protrusion 712 and fall downward, falling into the inside of the square hole 9, and is limited by the fixing ring 714 so that it will not fall completely, in order to avoid the erection of the knocking rod 713 affecting the subsequent tilting of the automobile parts plate.

[0030] Working principle: When the second sliding sleeve 614 moves, it will drive the L-shaped rod 811 to move, and the movement of the L-shaped rod 811 will drive the first contact block 812 to move. When the first contact block 812 moves to a certain position, it will contact the second contact block 816, thereby forcing the second contact block 816 to move to the right. The rightward movement of the second contact block 816 will drive the L-shaped plate 815 to move to the right, thereby releasing the limit on the vertical rod 817. After contacting the limit on the vertical rod 817, the L-shaped rod 811 will contact the vertical rod 817. Under the action of the interference of the L-shaped rod 811, The vertical rod 817 is driven to move, thereby driving the second clamp 818 hinged on the top of the vertical rod 817 to move, and the vertical rod 817 will slide onto the inclined groove 819. Since the first clamp 52 is hinged on the vertical plate 51, it will drive the clamped automobile parts plate to tilt, thereby causing the welding slag to slide down, and the vertical rod 817 will shake under the action of the wavy arc groove 820 during its movement on the inclined surface of the inclined groove 819, thereby promoting the shaking of the automobile parts plate, causing the welding slag on the plate to shake, and further promoting the sliding of the welding slag, and when the knocking rod 713 moves to the square hole 9, it breaks away from the resistance of the third protrusion 712 and falls downward, falling into the inside of the square hole 9, and is limited by the fixing ring 714 to prevent the erection of the knocking rod 713 from affecting the subsequent tilting and chip removal operation of the parts.

[0031] The present invention provides a laser cutting device for automotive parts. There are numerous methods and approaches for implementing this technical solution. The above is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Any components not specified in this embodiment may be implemented using existing technologies.

Claims

1. A laser cutting device for automobile parts, comprising a laser welding body (1), characterized in that: The laser welding machine body (1) is provided with a first slide groove (2) on the left and right sides, the first slide groove (2) is slidably connected to a connecting frame (3) inside, the connecting frame (3) is fixedly connected to a first electric push rod (41) inside, one end of the first electric push rod (41) is fixedly connected to a first fixed plate (42), the connecting frame (3) is fixedly connected to a slide rod (43) inside, the outer wall of the slide rod (43) is movably sleeved with a first slide sleeve (44), the first slide sleeve (44) is fixedly connected to the bottom of the first fixed plate (42), the first The bottom of the sliding sleeve (44) is fixedly connected to the cutting machine body (45) via a telescopic rod, the top of the laser welding body (1) is fixedly connected to a vertical plate (51), the front of the vertical plate (51) is hinged to a first clamp (52), the first clamp (52) comprises a first opening frame, a first clamping plate, and a first bolt, the first opening frame is hinged to the front of the vertical plate (51), the interior of the first opening frame is threadedly connected to the first bolt, the bottom of the first bolt is fixedly connected to the first clamping plate, and a square hole (9) is opened inside the laser welding body (1); The top of the laser welding body (1) is provided with a cleaning mechanism (6), the cleaning mechanism (6) includes a second fixed plate (611), the second fixed plate (611) is fixedly connected to the top of the laser welding body (1), the back of the second fixed plate (611) is fixedly connected to a second electric push rod (612), the top of the laser welding body (1) is fixedly connected to two slide rails (613), the outer walls of the two slide rails (613) are slidably connected to second slide sleeves (614), the second slide sleeves (614) are fixedly connected to one end of the second electric push rod (612), the interiors of the two second slide sleeves (614) are provided with second slide grooves (615), the interiors of the two second slide grooves (615) are slidably connected to first sliders (616), the two first sliders (616) are fixedly connected to the inner walls of the second slide grooves (615) by limit springs, the top of the first slider (616) is fixedly connected to an electric motor (617), the output end of the electric motor (617) is connected by a coupling The shaft is fixedly connected to a rotating shaft (618), the outer wall of the rotating shaft (618) is fixedly connected to a grinding roller (619), the top of the laser welding body (1) is fixedly connected to a connecting plate (620), the right side of the connecting plate (620) is fixedly connected to a plurality of first protrusions (621), the left side of the electric motor (617) is fixedly connected to a second protrusion (622), the first protrusion (621) is in contact with the second protrusion (622), and a knocking machine is provided inside the laser welding body (1). The knocking mechanism (7) comprises a Z-shaped rod (711), the middle section of the Z-shaped rod (711) contacts the side of the automobile part, a plurality of third protrusions (712) are fixedly connected to the interior of the laser welding body (1), a knocking rod (713) is movably passed through the interior of the Z-shaped rod (711) and extends to the upper and lower ends thereof, the bottom of the knocking rod (713) contacts the outer wall of the third protrusion (712), and the outer wall of the knocking rod (713) is fixedly connected to a fixing ring (714).

2. The laser cutting device for automobile parts according to claim 1, characterized in that: A dumping and chip removal mechanism (8) is provided inside the laser welding machine body (1), and the dumping and chip removal mechanism (8) comprises two L-shaped rods (811), the two L-shaped rods (811) are fixedly connected to the bottoms of two second sliding sleeves (614), and one end of the two L-shaped rods (811) is respectively fixedly connected to a first abutment block (812).

3. The laser cutting device for automobile parts according to claim 2, characterized in that: Two vertical rods (817) are attached to the inner bottom side of the laser welding body (1), and two third sliding grooves (813) are provided inside the laser welding body (1). The insides of the two third sliding grooves (813) are respectively slidably connected to second sliders (814), and the tops of the two second sliders (814) are fixedly connected to L-shaped plates (815).

4. The laser cutting device for automobile parts according to claim 3, characterized in that: One end of the two L-shaped plates (815) is movable through the two vertical rods (817) and extends outward, and the other ends of the two L-shaped plates (815) are respectively fixedly connected to the second abutment blocks (816), and the two vertical rods (817) are respectively fixedly hinged to the second clamps (818), and the second clamps (818) include a second opening frame, a second bolt, and a second clamping plate. The second opening frame is hinged to the top of the vertical rod (817), the internal thread of the second opening frame is connected to the second bolt, and the bottom of the second bolt is fixedly connected to the second clamping plate.

5. The laser cutting device for automobile parts according to claim 4, characterized in that: An inclined groove (819) is provided inside the laser welding machine body (1), and a wave arc groove (820) is provided on the inclined surface of the inclined groove (819).

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