Gap self-adaptive laser welding equipment for welding automobile parts

Abstract

The invention discloses gap self-adaptive laser welding equipment for automobile part welding, and relates to the technical field of automobile part welding equipment, the gap self-adaptive laser welding equipment comprises a base and a laser welding machine arm, a clamping mechanism is arranged at the upper end of the base, and a rotating mechanism is arranged on one side of the clamping mechanism. According to the laser welding machine arm, the gap between the two automobile parts can be adjusted, the two automobile parts can be conveniently welded through the laser welding machine arm, then the clamping mechanism can be conveniently controlled to operate, the two automobile parts can be driven to move, and therefore the gap between the two automobile parts can be adjusted; the gap is prevented from being too small or too large, the appearance and performance of the automobile parts cannot be affected, the strength and sealing performance of a welding joint can be reduced, the welding quality is prevented from being greatly reduced, the rejection rate of the automobile parts in the manufacturing process is reduced, and meanwhile the production time and cost are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts welding equipment, in particular to gap adaptive laser welding equipment for automobile parts welding. Background Art

[0002] Laser welding technology belongs to molten welding, which uses a laser beam as energy to impact the weld joint to achieve the purpose of welding. Among them, in molten welding, the laser beam can be guided by a plane optical element (such as a mirror), and then the beam is projected onto the weld by a reflective focusing element or a lens, but an inert gas is required to prevent the molten pool from oxidizing. Auto parts require laser welding operations during the production process. As one of the important links in the processing of auto parts, the welding of auto parts has a direct impact on the production efficiency of the entire vehicle. When welding auto parts, manual intervention is often used to adjust the welding parameters or pre-treat the auto parts to adjust the gap between the two auto parts. This not only increases the labor intensity of the workers, but also reduces production efficiency. In the prior art, during the welding process of automobile parts, when the welding gaps are inconsistent, two situations may occur due to the inability to automatically adjust the welding parameters to adapt to different gaps. First, the gap is too small, resulting in excessive welding, causing defects such as weld nodules and undercuts. Second, the gap is too large, resulting in loose welding, and problems such as cold welds and pores. This not only affects the appearance and performance of automobile parts, but also reduces the strength and sealing of welded joints, resulting in a significant decrease in welding quality, thereby increasing the scrap rate of automobile parts in the manufacturing process, while increasing production time and cost. Therefore, a gap adaptive laser welding device for welding automobile parts is proposed. Summary of the invention

[0003] The purpose of the present invention is to provide a gap adaptive laser welding device for welding automobile parts to solve the problems raised by the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a gap adaptive laser welding device for welding automobile parts, comprising a base and a laser welding machine arm, wherein a clamping mechanism is arranged at the upper end of the base, a rotating mechanism is arranged at one side of the clamping mechanism, a gap detection mechanism is arranged at the upper end of the base, a fixing mechanism is arranged at the upper end of the clamping mechanism, and the lower end of the laser welding machine arm is fixed to the upper end of the base; The clamping mechanism includes a fixed frame plate, two groups of bearing seats and a No. 1 cylinder. Two groups of guide rails are fixedly installed on the upper end of the fixed frame plate. Four groups of slide seats are fixedly installed on the lower ends of the two groups of bearing seats. A connecting seat is fixedly installed on one end and the extended end of the No. 1 cylinder. Two groups of No. 1 infrared sensors are fixedly installed on the upper end of the fixed frame plate. No. 2 infrared sensors are fixedly installed on the upper end of the fixed frame plate and at the edges of both sides. The gap detection mechanism comprises a round seat, a No. 2 cylinder is fixedly mounted on the upper end of the round seat, a fixed seat is fixedly mounted on the extended end of the No. 2 cylinder, a No. 1 telescopic rod is penetrated and mounted on one end of the fixed seat, a guide column is fixedly mounted on one end of the fixed seat, a sliding cylinder is slidably mounted on the outer wall of the guide column, a fixed block is fixedly mounted on the upper end of the sliding cylinder, a No. 2 telescopic rod is penetrated and mounted on the front end of the fixed block, an L-shaped plate is fixedly mounted on the extended end of the No. 2 telescopic rod, and a gap detection module is fixedly mounted on the lower end of the L-shaped plate; It also includes a main control module, the No. 1 cylinder is connected to the main control module signal, the two groups of No. 1 infrared sensors are both connected to the main control module signal, the two groups of No. 2 infrared sensors are both connected to the main control module signal, and the laser welding robot arm is connected to the main control module signal.

[0005] Preferably, the rotating mechanism comprises an inclined frame plate, a variable speed motor is fixedly mounted on the upper end of the inclined frame plate, rotating drums are rotatably mounted inside the two groups of bearing seats, and a special-shaped plate is fixedly mounted on one end of the two groups of rotating drums.

[0006] Preferably, the fixing mechanism comprises a fixing plate, and a No. 3 telescopic rod is installed through the upper ends of the two groups of fixing plates, and an elliptical plate is fixedly installed on the protruding ends of the two groups of No. 3 telescopic rods.

[0007] Preferably, the eight groups of sliding seats are respectively slidably installed on the outer walls of the two groups of guide rails, the lower ends of the two groups of connecting seats are respectively fixed to the upper ends of the two groups of bearing seats, and the upper end of the fixed frame plate is fixed to the upper end of the base.

[0008] Preferably, the extended end of the first telescopic rod is fixed to the outer wall of the sliding cylinder, and the lower end of the round seat is fixed to the upper end of the base.

[0009] Preferably, two groups of supporting circular wheels are fixedly mounted on one end of each of the two groups of special-shaped plates, and a guide cylinder is fixedly mounted on the other end of one group of special-shaped plates.

[0010] Preferably, two groups of vertical grooves are formed at one end of the two groups of special-shaped plates, and guide blocks are slidably installed inside the four groups of vertical grooves.

[0011] Preferably, a guide rod is slidably mounted inside the guide cylinder, and the other end of the guide rod is fixed to the other end of another group of special-shaped plates.

[0012] Preferably, the lower ends of the two groups of fixed plates are respectively fixed to the upper ends of the two groups of special-shaped plates, and the other ends of the four groups of guide blocks are respectively fixed to one end of the two groups of elliptical plates.

[0013] Preferably, the other end of one group of the rotating drums is fixed to the output end of the variable speed motor, and one end of the inclined frame plate is fixed to the other end of one group of the bearing seats.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, by providing a clamping mechanism, two automobile parts can be driven to move, so that the gap between the two automobile parts can be adjusted, which is convenient for the laser welding robot arm to weld the two automobile parts. Secondly, the information transmitted by the gap detection module is calculated by the general control module, and then the No. 1 cylinder is controlled. In the process of the No. 1 cylinder driving the two groups of bearing seats to move, the moving distance is detected in real time by two groups of No. 1 infrared sensors. When the moving distance meets the requirements, the general control module will control the No. 1 cylinder to stop running.

[0015] 2. In the present invention, by providing a gap detection mechanism, the gap between two automobile parts can be fully detected, the gap between two automobile parts can be fully detected, the clamping mechanism can be conveniently controlled to operate, and the two automobile parts can be driven to move, so that the gap between the two automobile parts can be adjusted to prevent the gap from being too small or too large. Not only will it not affect the appearance and performance of the automobile parts, but it will also reduce the strength and sealing of the welded joint, prevent a significant decrease in welding quality, reduce the scrap rate of automobile parts in the manufacturing process, and reduce production time and cost.

[0016] 3. In the present invention, by providing a fixing mechanism, the extended ends of the two groups of No. 3 telescopic rods push the two groups of elliptical plates to move downward, so that the two groups of elliptical plates move toward the upper surfaces of the two automobile parts respectively until they contact the two automobile parts, and then the two automobile parts can be fixed on the upper ends of the four groups of supporting circular wheels, thereby fixing the two automobile parts.

[0017] 4. In the present invention, by providing a rotating mechanism, two fixed automobile parts can be moved, thereby driving the two automobile parts to rotate, making it convenient for the laser welding robot arm to fully weld the gap between the two automobile parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1A three-dimensional diagram of a gap adaptive laser welding device for welding automobile parts according to the present invention; Figure 2 This is a structural schematic diagram of a base and a clamping mechanism in a gap adaptive laser welding device for welding automobile parts of the present invention; Figure 3 It is a partial structural schematic diagram of an adjusting mechanism, a rotating mechanism and a fixing mechanism in a gap adaptive laser welding device for welding automobile parts of the present invention; Figure 4 It is a structural schematic diagram of an adjustment mechanism and a rotation mechanism in a gap adaptive laser welding device for welding automobile parts of the present invention; Figure 5 A three-dimensional diagram of a gap detection mechanism in a gap adaptive laser welding device for welding automobile parts according to the present invention; Figure 6 It is a structural schematic diagram of a rotating mechanism and a fixing mechanism in a gap adaptive laser welding device for welding automobile parts of the present invention; Figure 7 This is a schematic diagram of the front structure of a gap adaptive laser welding device for welding automobile parts according to the present invention; Figure 8 This is a system diagram of a gap adaptive laser welding device for welding automobile parts according to the present invention.

[0019] In the figure: 1. Base; 11. Laser welding robot arm; 2. Clamping mechanism; 21. Fixed frame plate; 22. Bearing seat; 23. No. 1 cylinder; 24. Guide rail; 25. Sliding seat; 26. Connecting seat; 27. No. 1 infrared sensor; 28. No. 2 infrared sensor; 3. Rotating mechanism; 31. Inclined frame plate; 32. Variable speed motor; 33. Rotating drum; 34. Special-shaped plate; 35. Supporting round wheel; 36. Guide cylinder; 37. Guide rod; 4. Gap detection mechanism; 41. Round seat; 42. No. 2 cylinder; 43. Fixed seat; 44. No. 1 telescopic rod; 45. Guide column; 46. Sliding cylinder; 47. Fixed block; 48. No. 2 telescopic rod; 49. L-shaped plate; 410. Gap detection module; 5. Fixing mechanism; 51. Fixed plate; 52. No. 3 telescopic rod; 53. Oval plate; 54. Vertical groove; 55. Guide block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described 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 creative work are within the scope of protection of the present invention.

[0021] Example 1: Reference Figure 1 - Figure 8 As shown: a gap adaptive laser welding device for welding automobile parts, comprising a base 1 and a laser welding machine arm 11, a clamping mechanism 2 is arranged at the upper end of the base 1, a rotating mechanism 3 is arranged at one side of the clamping mechanism 2, a gap detection mechanism 4 is arranged at the upper end of the base 1, a fixing mechanism 5 is arranged at the upper end of the clamping mechanism 2, and the lower end of the laser welding machine arm 11 is fixed to the upper end of the base 1; The clamping mechanism 2 includes a fixed frame plate 21, two groups of bearing seats 22 and a No. 1 cylinder 23. Two groups of guide rails 24 are fixedly installed on the upper end of the fixed frame plate 21. Four groups of slide seats 25 are fixedly installed on the lower ends of the two groups of bearing seats 22. A connecting seat 26 is fixedly installed on one end and the extended end of the No. 1 cylinder 23. Two groups of No. 1 infrared sensors 27 are fixedly installed on the upper end of the fixed frame plate 21. No. 2 infrared sensors 28 are fixedly installed on the upper end of the fixed frame plate 21 and at the edges of both sides. Eight groups of slide seats 25 are slidably installed on the outer walls of the two groups of guide rails 24, respectively. The lower ends of the two groups of connecting seats 26 are fixed to the upper ends of the two groups of bearing seats 22, respectively. The upper end of the fixed frame plate 21 is fixed to the upper end of the base 1. The gap detection mechanism 4 includes a round seat 41, a No. 2 cylinder 42 is fixedly installed on the upper end of the round seat 41, a fixed seat 43 is fixedly installed on the extended end of the No. 2 cylinder 42, a No. 1 telescopic rod 44 is penetrated and installed on one end of the fixed seat 43, a guide column 45 is fixedly installed on one end of the fixed seat 43, a sliding cylinder 46 is slidably installed on the outer wall of the guide column 45, a fixed block 47 is fixedly installed on the upper end of the sliding cylinder 46, a No. 2 telescopic rod 48 is penetrated and installed on the front end of the fixed block 47, an L-shaped plate 49 is fixedly installed on the extended end of the No. 2 telescopic rod 48, a gap detection module 410 is fixedly installed on the lower end of the L-shaped plate 49, the extended end of the No. 1 telescopic rod 44 is fixed to the outer wall of the sliding cylinder 46, and the lower end of the round seat 41 is fixed to the upper end of the base 1; It also includes a main control module, the No. 1 cylinder 23 is connected to the main control module signal, the two groups of No. 1 infrared sensors 27 are both connected to the main control module signal, the two groups of No. 2 infrared sensors 28 are both connected to the main control module signal, and the laser welding robot arm 11 is connected to the main control module signal.

[0022] In this embodiment, the No. 1 cylinder 23 is started, and the protruding end and the bottom end of the No. 1 cylinder 23 drive the two groups of bearing seats 22 to move through the two groups of connecting seats 26, and the two groups of bearing seats 22 respectively drive the four groups of slide seats 25 to move, and the eight groups of slide seats 25 slide on the outer walls of the two groups of guide rails 24 respectively, so that the two groups of bearing seats 22 drive the fixing mechanism 5 to move through the two groups of rotating cylinders 33 and the two groups of special-shaped plates 34, and the two groups of bearing seats 22 move at the two groups of No. 1 infrared sensors 27 respectively, and then can drive the two automobile parts to move, so that the gap between the two automobile parts can be adjusted, which is convenient for the laser welding robot arm 11 to weld the two automobile parts; The information transmitted by the gap detection module 410 is calculated by the general control module, and then the No. 1 cylinder 23 is controlled. When the No. 1 cylinder 23 drives the two groups of bearing seats 22 to move, the moving distance is detected in real time by the two groups of No. 1 infrared sensors 27. When the moving distance meets the requirements, the general control module will control the No. 1 cylinder 23 to stop running. Secondly, with the cooperation of the two groups of No. 1 infrared sensors 27 and the two groups of No. 2 infrared sensors 28, the moving distances of the two groups of bearing seats 22 can be detected in real time, and can be adjusted according to the situation; Start the No. 2 cylinder 42, the No. 2 cylinder 42 drives the No. 1 telescopic rod 44 and the guide column 45 to move through the fixed seat 43, the guide column 45 drives the fixed block 47 through the sliding cylinder 46, the fixed block 47 drives the gap detection module 410 to move through the No. 2 telescopic rod 48 and the L-shaped plate 49, so as to adjust the distance between the gap detection module 410 and the two automobile parts, and then start the No. 1 telescopic rod 44, the No. 1 telescopic rod 44 pushes the sliding cylinder 46 to slide on the outer wall of the guide column 45, the sliding cylinder 46 drives the gap detection module 410 to move through the fixed block 47, the No. 2 telescopic rod 48 and the L-shaped plate 49, so as to adjust the distance between the gap detection module 410 and the two automobile parts to be welded, so as to facilitate the gap detection module 410 to detect the gap between the two automobile parts. , then, start the second telescopic rod 48, and the extended end of the second telescopic rod 48 drives the gap detection module 410 to move through the L-shaped plate 49, so that the gap detection module 410 moves above the gap between the two automobile parts, and the gap between the two automobile parts can be fully detected, which is convenient for controlling the clamping mechanism 2 to operate, and can drive the two automobile parts to move, so that the gap between the two automobile parts can be adjusted to prevent the gap from being too small or too large, which will not only not affect the appearance and performance of the automobile parts, but also reduce the strength and sealing of the welded joints, prevent the welding quality from being greatly reduced, reduce the scrap rate of automobile parts in the manufacturing process, and reduce production time and cost.

[0023] Embodiment 2: Figure 1 , Figure 3, Figure 4 , Figure 6 and Figure 7 As shown, the rotating mechanism 3 includes an inclined frame plate 31, a variable speed motor 32 is fixedly installed on the upper end of the inclined frame plate 31, a rotating cylinder 33 is rotatably installed inside the two groups of bearing seats 22, one end of the two groups of rotating cylinders 33 is fixedly installed with a special-shaped plate 34, one end of the two groups of special-shaped plates 34 is fixedly installed with two groups of supporting round wheels 35, one end of the two groups of special-shaped plates 34 is fixedly installed with a guide cylinder 36 on the other end of one group of special-shaped plates 34, a guide rod 37 is slidably installed inside the guide cylinder 36, the other end of the guide rod 37 is fixed to the other end of the other group of special-shaped plates 34, the other end of one group of rotating cylinders 33 is fixed to the output end of the variable speed motor 32, and one end of the inclined frame plate 31 is fixed to the other end of one group of bearing seats 22.

[0024] In this embodiment, the variable speed motor 32 is started, and the output end of the variable speed motor 32 drives one group of rotating drums 33 to rotate. One group of rotating drums 33 drives another group of rotating drums 33 to rotate together through one group of special-shaped plates 34, guide cylinders 36, guide rods 37 and another group of special-shaped plates 34, and drives the fixing mechanism 5 to rotate together, so that the two fixed automobile parts can be moved, thereby driving the two automobile parts to rotate, which is convenient for the laser welding robot arm 11 to fully weld the gap between the two automobile parts.

[0025] Embodiment 3: Figure 1 , Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the fixing mechanism 5 includes a fixing plate 51, and the upper ends of the two groups of fixing plates 51 are penetrated by a No. 3 telescopic rod 52, and the protruding ends of the two groups of No. 3 telescopic rods 52 are fixedly installed with an elliptical plate 53, one end of the two groups of special-shaped plates 34 is provided with two groups of vertical grooves 54, and the inside of the four groups of vertical grooves 54 is slidably installed with a guide block 55, the lower ends of the two groups of fixing plates 51 are respectively fixed to the upper ends of the two groups of special-shaped plates 34, and the other ends of the four groups of guide blocks 55 are respectively fixed to one end of the two groups of elliptical plates 53.

[0026] In this embodiment, by synchronously starting the two groups of No. 3 telescopic rods 52, the extended ends of the two groups of No. 3 telescopic rods 52 push the two groups of elliptical plates 53 to move downward, so that the two groups of elliptical plates 53 move toward the upper surfaces of the two automobile parts respectively until they contact the two automobile parts, and then the two automobile parts can be fixed on the upper ends of the four groups of supporting circular wheels 35, so that the two automobile parts can be fixed.

[0027] The working principle of the present invention is as follows: when in use, first, two automobile parts are placed on the upper ends of the four groups of slide seats 25 respectively, and the two groups of No. 3 telescopic rods 52 are started synchronously. The extended ends of the two groups of No. 3 telescopic rods 52 push the two groups of elliptical plates 53 to move downward, so that the two groups of elliptical plates 53 move toward the upper surfaces of the two automobile parts respectively until they contact the two automobile parts, and then the two automobile parts can be fixed on the upper ends of the four groups of supporting round wheels 35. Then, the No. 2 cylinder 42 is started, and the No. 2 cylinder 42 drives the No. 1 telescopic rod 44 and the guide column 45 to move through the fixed seat 43. The guide column 45 drives the fixed block 47 through the sliding cylinder 46. The fixed block 47 drives the gap detection module 410 to move through the No. 2 telescopic rod 48 and the L-shaped plate 49. The distance between the gap detection module 410 and the two automobile parts can be adjusted. Then, by starting the No. 1 telescopic rod 44, the No. 1 telescopic rod 44 pushes the sliding cylinder 46 to slide on the outer wall of the guide column 45. The sliding cylinder 46 drives the gap detection module 410 to move through the fixed block 47, the No. 2 telescopic rod 48 and the L-shaped plate 49, and the distance between the gap detection module 410 and the two automobile parts to be welded can be adjusted, so that the gap detection module 410 can detect the gap between the two automobile parts. After that, the No. 3 telescopic rod 52 is started, and the extended end of the No. 3 telescopic rod 52 drives the gap detection module 410 to move through the L-shaped plate 49, so that the gap detection module 410 moves above the gap between the two automobile parts. A comprehensive inspection is performed on the gap between the two automobile parts, and then the inspection information is transmitted to the main control module. After calculation by the main control module, the main control module will control the No. 1 cylinder 23. The protruding end and the bottom end of the No. 1 cylinder 23 drive the two groups of bearing seats 22 to move through the two groups of connecting seats 26. The two groups of bearing seats 22 respectively drive the four groups of slide seats 25 to move. The eight groups of slide seats 25 slide on the outer walls of the two groups of guide rails 24, so that the two groups of bearing seats 22 drive the fixing mechanism 5 to move through the two groups of rotating drums 33 and the two groups of special-shaped plates 34. The two groups of bearing seats 22 move at the two groups of No. 1 infrared sensors 27, respectively, which can drive the two automobile parts to move and adjust the gap between the two automobile parts. Under the monitoring of the device 27, when the gap between the two automobile parts meets the requirements, the main control module will control the No. 1 cylinder 23 to stop running, and then control the laser welding robot arm 11 to weld the two automobile parts. Finally, the variable speed motor 32 is operated, and the output end of the variable speed motor 32 drives one group of rotating cylinders 33 to rotate, and one group of rotating cylinders 33 drives another group of rotating cylinders 33 to rotate together through one group of special-shaped plates 34, guide cylinders 36, guide rods 37 and another group of special-shaped plates 34, and drives the fixing mechanism 5 to rotate together, so that the two fixed automobile parts can be moved, and the two automobile parts can be driven to rotate, so that the laser welding robot arm 11 can perform comprehensive welding on the gap between the two automobile parts.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gap adaptive laser welding device for welding automobile parts, comprising a base (1) and a laser welding robot arm (11), characterized in that: A clamping mechanism (2) is provided at the upper end of the base (1), a rotating mechanism (3) is provided on one side of the clamping mechanism (2), a gap detection mechanism (4) is provided at the upper end of the base (1), a fixing mechanism (5) is provided at the upper end of the clamping mechanism (2), and the lower end of the laser welding machine arm (11) is fixed to the upper end of the base (1); The clamping mechanism (2) comprises a fixed frame plate (21), two groups of bearing seats (22) and a No. 1 cylinder (23); two groups of guide rails (24) are fixedly mounted on the upper end of the fixed frame plate (21); four groups of slide seats (25) are fixedly mounted on the lower ends of the two groups of bearing seats (22); a connecting seat (26) is fixedly mounted on one end and an extended end of the No. 1 cylinder (23); two groups of No. 1 infrared sensors (27) are fixedly mounted on the upper end of the fixed frame plate (21); and No. 2 infrared sensors (28) are fixedly mounted on the upper end and at the edges of both sides of the fixed frame plate (21); The gap detection mechanism (4) comprises a round seat (41), a No. 2 cylinder (42) is fixedly mounted on the upper end of the round seat (41), a fixed seat (43) is fixedly mounted on the protruding end of the No. 2 cylinder (42), a No. 1 telescopic rod (44) is penetrated and mounted on one end of the fixed seat (43), a guide column (45) is fixedly mounted on one end of the fixed seat (43), a sliding cylinder (46) is slidably mounted on the outer wall of the guide column (45), a fixed block (47) is fixedly mounted on the upper end of the sliding cylinder (46), a No. 2 telescopic rod (48) is penetrated and mounted on the front end of the fixed block (47), an L-shaped plate (49) is fixedly mounted on the protruding end of the No. 2 telescopic rod (48), and a gap detection module (410) is fixedly mounted on the lower end of the L-shaped plate (49); It also includes a main control module, the No. 1 cylinder (23) is connected to the main control module by signal, the two groups of No. 1 infrared sensors (27) are both connected to the main control module by signal, the two groups of No. 2 infrared sensors (28) are both connected to the main control module by signal, and the laser welding robot arm (11) is connected to the main control module by signal.

2. The gap adaptive laser welding equipment for welding automobile parts according to claim 1 is characterized in that: The rotating mechanism (3) comprises an inclined frame plate (31), a variable speed motor (32) is fixedly mounted on the upper end of the inclined frame plate (31), a rotating drum (33) is rotatably mounted inside the two groups of bearing seats (22), and a special-shaped plate (34) is fixedly mounted on one end of the two groups of rotating drums (33).

3. The gap adaptive laser welding equipment for welding automobile parts according to claim 2 is characterized in that: The fixing mechanism (5) comprises a fixing plate (51), and a third telescopic rod (52) is installed through the upper ends of the two sets of fixing plates (51), and an elliptical plate (53) is fixedly installed on the protruding ends of the two sets of the third telescopic rod (52).

4. The gap adaptive laser welding equipment for welding automobile parts according to claim 1 is characterized in that: The eight groups of slide seats (25) are respectively slidably mounted on the outer walls of the two groups of guide rails (24); the lower ends of the two groups of connecting seats (26) are respectively fixed to the upper ends of the two groups of bearing seats (22); and the upper end of the fixed frame plate (21) is fixed to the upper end of the base (1).

5. The gap adaptive laser welding equipment for welding automobile parts according to claim 1 is characterized in that: The extended end of the first telescopic rod (44) is fixed to the outer wall of the sliding cylinder (46), and the lower end of the round seat (41) is fixed to the upper end of the base (1).

6. The gap adaptive laser welding equipment for welding automobile parts according to claim 2 is characterized in that: Two groups of supporting circular wheels (35) are fixedly mounted on one end of each of the two groups of special-shaped plates (34), and a guide cylinder (36) is fixedly mounted on the other end of one group of the special-shaped plates (34).

7. The gap adaptive laser welding equipment for welding automobile parts according to claim 3 is characterized in that: Two groups of vertical grooves (54) are respectively formed at one end of the two groups of special-shaped plates (34), and guide blocks (55) are slidably mounted inside the four groups of vertical grooves (54).

8. The gap adaptive laser welding equipment for welding automobile parts according to claim 6, characterized in that: A guide rod (37) is slidably mounted inside the guide cylinder (36), and the other end of the guide rod (37) is fixed to the other end of another group of special-shaped plates (34).

9. The gap adaptive laser welding equipment for welding automobile parts according to claim 7, characterized in that: The lower ends of the two groups of fixing plates (51) are respectively fixed to the upper ends of the two groups of special-shaped plates (34), and the other ends of the four groups of guide blocks (55) are respectively fixed to one end of the two groups of elliptical plates (53).

10. The gap adaptive laser welding equipment for welding automobile parts according to claim 8, characterized in that: The other end of one group of the rotating drums (33) is fixed to the output end of the variable speed motor (32), and one end of the inclined frame plate (31) is fixed to the other end of one group of the bearing seats (22).

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