Laser welding device for automobile part machining

Abstract

The invention discloses a laser welding device for automobile part machining, and relates to the technical field of automobile part machining, the laser welding device for automobile part machining comprises a rack, a bottom cover is transversely arranged at the bottom of the rack, a center standard scale groove is formed in the rack, and a vertical plate is longitudinally arranged on the rear side of the rack; the front side of the rack is provided with a placing table used for temporary reinspection of automobile parts. A laser welding device is arranged on the vertical plate through an auxiliary assembly, and the auxiliary assembly comprises a lifting air cylinder longitudinally arranged on the rear side of the vertical plate; trigger assemblies used for clamping the automobile parts are arranged on the two sides of the rack, each trigger assembly comprises a clamping air cylinder arranged on the outer side of the rack, and a seam aligning assembly used for correcting the automobile parts is arranged in the bottom cover. On the basis of a secondary triggering mechanism, the automatic clamping, straightening and seam aligning effects of the pipe fitting are achieved, the labor intensity and the defective rate are reduced, and the efficiency and the machining precision are improved.

Description

Technical Field

[0001] This invention relates to the field of automotive parts processing technology, and in particular to a laser welding device for automotive parts processing. Background Technology

[0002] Automotive parts, also known as automotive components, automotive spare parts, or automotive spare parts, refer to the components that make up the various units of a car and all consumable materials that serve the car. There are many varieties, including pipe fittings, which are divided into round pipe fittings and square pipe fittings. Laser welding is mostly used when welding pipe fittings.

[0003] During the laser welding of pipe fittings, frequent manual intervention is required to pre-clamp, straighten, and align the two pipe fittings. This not only increases the labor intensity but also makes it easy for operational errors to occur, resulting in substandard laser welding of pipe fittings, wasting pipe fitting materials, increasing costs and the defect rate, which is not worth the effort. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or existing laser welding apparatuses for processing automotive parts, the present invention is proposed.

[0006] Therefore, the problem to be solved by this invention is how to achieve automatic clamping, straightening and seam alignment of pipe fittings based on a secondary triggering mechanism, which results in high labor intensity, high defect rate, low efficiency and low precision.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a laser welding device for processing automotive parts, comprising a frame, a bottom cover horizontally arranged at the bottom of the frame, a central standard scale groove formed on the frame, a vertical plate vertically arranged on the rear side of the frame, and a placement platform for temporary re-inspection of automotive parts provided on the front side of the frame; a laser welder is provided on the vertical plate by means of an auxiliary component, and the auxiliary component includes a lifting cylinder vertically arranged on the rear side of the vertical plate; triggering components for clamping automotive parts are provided on both sides of the frame, and the triggering components include clamping cylinders arranged on the outer side of the frame; a seam alignment component for calibrating automotive parts is provided inside the bottom cover, and the seam alignment component includes a stepper motor embedded on the rear side of the bottom cover; and a rotating component for linear rotation of automotive parts is provided on the two sets of triggering components, and a limiting component is provided on the two sets of rotating components.

[0008] As a preferred embodiment of the laser welding device for processing automotive parts according to the present invention, the auxiliary components further include a vertical sliding groove formed on the upright plate, and a connecting piece fixed on the piston rod of the lifting cylinder and sliding with the vertical sliding groove. The connecting piece is fixed with a support arm that is installed on the laser welder. An industrial camera for visual monitoring of the laser welding head is embedded in the laser welder, and a laser cutting head sensor for monitoring the distance of the laser welding head is tilted and fixed on one side of the laser welder.

[0009] As a preferred embodiment of the laser welding device for processing automotive parts according to the present invention, a negative pressure suction pump is fixed on the outside of the laser welder, and a collection tube is connected to the inner end of the negative pressure suction pump. The bottom end of the collection tube is connected to a negative pressure suction head that is intersected with the laser welding head on the laser welder, and a collection container is threadedly connected to the outer end of the negative pressure suction pump.

[0010] As a preferred embodiment of the laser welding device for processing automotive parts according to the present invention, the triggering assembly further includes a semi-circular frame fixed inside the piston rods of two sets of clamping cylinders, a clamping seat fixed inside the two sets of semi-circular frames, a fixed triggering pressure plate embedded inside the two sets of clamping seats, and an elastic strip embedded on the outer side of the two sets of clamping seats near the fixed triggering pressure plate, and a moving triggering pressure plate that is pressed and triggered by the fixed triggering pressure plate is fixed inside the two sets of elastic strips.

[0011] As a preferred embodiment of the laser welding device for processing automotive parts according to the present invention, wherein: the inner side of the two sets of clamping seats near the fixed trigger pressure plate is provided with a reserved cavity that matches the triggering of the moving trigger pressure plate on the elastic strip, and a circular through-hole is provided in the two sets of clamping seats, and a square recess is provided in the two sets of clamping seats that matches the circular through-hole.

[0012] As a preferred embodiment of the laser welding device for processing automotive parts according to the present invention, the seam assembly further includes a main bevel gear sleeved on the output shaft of a stepper motor, a driven bevel gear meshing on the outside of the main bevel gear, and a bidirectional lead screw transversely placed in the driven bevel gear and rotating with the base cover. Both sides of the bidirectional lead screw are threadedly connected to lead screw sleeves, and brackets fixed to two sets of clamping cylinders are fixed on the outside of the two sets of lead screw sleeves.

[0013] As a preferred embodiment of the laser welding device for processing automotive parts according to the present invention, the frame and the base are provided with transverse sliding grooves that slide with the brackets around their perimeter, and two sets of brackets are fixed with displacement sensors, which are distributed diagonally along the longitudinal axis of the frame, and the threads of the two bidirectional lead screws and the two sets of lead screw sleeves are opposite in direction.

[0014] As a preferred embodiment of the laser welding device for processing automotive parts according to the present invention, the rotating assembly includes a housing connected to two sets of semi-circular frames. A servo motor is fixed to the outside of one set of housings, and a drive gear is sleeved on the output shaft of the servo motor. A rotating frame rotates inside the two sets of housings and meshes with the drive gear through a convex tooth. A driven gear meshes with the convex tooth in the other set of housings.

[0015] As a preferred embodiment of the laser welding device for processing automotive parts according to the present invention, the inner sides of the two sets of rotating frames are provided with guide rail grooves, and guide rails fixed to the semi-circular frames slide in the guide rail grooves. After the two sets of semi-circular frames and the rotating frames and the protruding teeth on them are closed, they form a complete circle.

[0016] As a preferred embodiment of the laser welding device for processing automotive parts according to the present invention, the limiting component includes a ratchet fixed to the outside of the driven gear via a concentric shaft, a pawl hinged to the cover is engaged on the ratchet, a spring fixed to the cover is fixed on one side of the pawl, and a lifting head that slides through the cover is fixed on the other side of the pawl.

[0017] The beneficial effects of this invention are as follows: First, through the auxiliary components, the height of the laser welder is adaptively adjusted, and the welding image, distance, and perpendicularity between the laser welding head and the pipe are accurately monitored, thereby improving the welding accuracy. Second, through the triggering components, the automatic clamping action of the pipe is completed, while the fixed triggering plate and the moving triggering plate are controlled to perform extrusion triggering. Based on the triggering mechanism, the alignment component achieves straightening and alignment of the pipe, and is triggered by two sets of displacement sensors. Through the rotation component and the limiting component, the aligned pipe achieves a linear rotation effect with reverse restriction, thus completing the rotational welding operation of the pipe. The efficiency, yield, and accuracy are high. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an initial state diagram of a laser welding device used for processing automotive parts.

[0020] Figure 2 This is a welding status diagram of a laser welding device used for processing automotive parts.

[0021] Figure 3 This is a partial bottom view of a laser welding apparatus used for processing automotive parts.

[0022] Figure 4 This is a partial exploded front view of a laser welding apparatus used for processing automotive parts.

[0023] Figure 5 This is a partial exploded side view of a laser welding apparatus used for processing automotive parts.

[0024] Figure 6 An exploded bottom view of the laser welder and auxiliary components.

[0025] In the diagram: 1. Stand; 2. Base cover; 3. Vertical plate; 4. Laser welder; 51. Vertical slide; 52. Lifting cylinder; 53. Connector; 54. Support arm; 55. Industrial camera; 56. Laser cutting head sensor; 61. Clamping cylinder; 62. Semicircular frame; 63. Clamping seat; 64. Fixed trigger pressure plate; 65. Elastic strip; 66. Moving trigger pressure plate; 71. Stepper motor; 72. Main bevel gear; 73. Driven bevel gear; 74. Bidirectional lead screw; 75. Lead screw sleeve; 76. Bracket; 81. Cover; 82. Servo motor; 83. Drive gear; 84. Rotating frame; 85. Convex tooth; 86. Driven gear; 91. Ratchet; 92. Pawl; 93. Spring; 94. Lifting head; 10. Horizontal slide groove; 11. Displacement sensor; 12. Guide rail groove; 13. Guide rail strip; 14. Negative pressure suction pump; 15. Collection tube; 16. Negative pressure suction head; 17. Collection container; 18. Center standard scale groove. Detailed Implementation

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1, referring to Figures 1-6This is the first embodiment of the present invention. This embodiment provides a laser welding device for processing automotive parts, including a stand 1, a bottom cover 2 horizontally placed at the bottom of the stand 1, and a central standard scale groove 18 with a central circular groove on the stand 1 to provide a scale reference for the manual re-inspection of two round or square tubes after the subsequent seam is aligned, and a vertical plate 3 vertically placed on the rear side of the stand 1, and a placement platform for temporary re-inspection of automotive parts provided on the front side of the stand 1, which can be used for the temporary placement of two round or square tubes before and after welding.

[0030] Specifically, a laser welder 4 is installed on the upright plate 3 via an auxiliary component. The auxiliary component includes a lifting cylinder 52 vertically positioned on the rear side of the upright plate 3, a vertical sliding groove 51 opened on the upright plate 3, and a connector 53 fixed on the piston rod of the lifting cylinder 52 and sliding with the vertical sliding groove 51. A support arm 54 for installation with the laser welder 4 is fixed on the connector 53. When welding two round or square pipes, the lifting cylinder 52 is first opened and the connector 53 is driven to slide down in the vertical sliding groove 51. The connector 53 drives the laser welding head on the laser welder 4 through the support arm 54 to move down to the butt welding area of ​​the two round or square pipes and perform adaptive laser welding.

[0031] An industrial camera 55 for visual monitoring of the laser welding head is embedded in the laser welder 4, and a laser cutting head sensor 56 for monitoring the distance of the laser welding head is fixed at an angle on one side of the laser welder 4. The industrial camera 55 and the laser cutting head sensor 56 monitor the welding image, distance and perpendicularity between the laser welding head and the butt welding area in real time, thereby improving the accuracy of the laser welding head on the laser welder 4 in welding two round or square pipes.

[0032] Specifically, a negative pressure suction pump 14 is fixed on the outside of the laser welder 4, and a collection tube 15 is connected to the inner end of the negative pressure suction pump 14. The bottom end of the collection tube 15 is connected to a negative pressure suction head 16 that is intersected with the laser welding head on the laser welder 4. The outer end of the negative pressure suction pump 14 is threadedly connected to a collection container 17. The collection container 17 can be unscrewed periodically to clean the impurities inside.

[0033] The negative pressure suction pump 14 is turned on and generates negative pressure suction into the collection pipe 15. Under the action of negative pressure suction, the negative pressure suction head 16 absorbs the fumes generated by the laser welding head in the welding area and transports them to the collection container 17 through the collection pipe 15. This enables the laser welding head to collect the fumes generated during the welding of two round or square pipes under negative pressure, improving the cleanliness of the welding site and preventing fumes from adhering to the welding area and causing quality problems.

[0034] Example 2, refer to Figures 1-6 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0035] Specifically, triggering components for clamping automotive parts are provided on both sides of the test bench 1. The triggering components include clamping cylinders 61 located on the outside of the test bench 1, and semi-circular frames 62 fixed inside the piston rods of the two sets of clamping cylinders 61. Clamping seats 63 are fixed inside the two sets of semi-circular frames 62. The two sets of clamping cylinders 61 are controlled to open and drive the clamping seats 63 inside the two sets of semi-circular frames 62 to move inward synchronously. The two sets of semi-circular frames 62 fit together to form a complete circle and squeeze and clamp the two round or square tubes, realizing the automatic clamping and straightening effect of the two round or square tubes, replacing manual clamping operation, and achieving high efficiency.

[0036] The inner side of the two sets of clamping seats 63 is provided with a fixed trigger pressure plate 64, and the outer side of the two sets of clamping seats 63 near the fixed trigger pressure plate 64 is provided with an elastic strip 65. The inner side of the two sets of elastic strips 65 is fixed with a movable trigger pressure plate 66 that is pressed and triggered by the fixed trigger pressure plate 64. Under the reverse extrusion force generated by the clamping of the two round or square tubes, the two sets of movable trigger pressure plates 66 are forced to press the elastic strip 65 until the two sets of movable trigger pressure plates 66 are attached to the two sets of fixed trigger pressure plates 64, thus completing the triggering action and ensuring sensitive connection.

[0037] Specifically, the inner side of the two sets of clamping seats 63 near the fixed trigger pressure plate 64 has a reserved cavity that matches the triggering of the moving trigger pressure plate 66 on the elastic strip 65, so that the two sets of moving trigger pressure plates 66 and the two sets of fixed trigger pressure plates 64 can be precisely fitted and triggered. The two sets of clamping seats 63 have a circular insertion port and a square recess that matches the circular insertion port, which meets the clamping requirements of the two sets of clamping seats 63 for two round or square pipe fittings, making it more applicable and convenient and quick without the need to replace the clamping seats 63.

[0038] Specifically, a seam alignment assembly for calibrating automotive parts is provided inside the base cover 2. The seam alignment assembly includes a stepper motor 71 embedded on the rear side of the base cover 2, a main bevel gear 72 sleeved on the output shaft of the stepper motor 71, a driven bevel gear 73 meshing on the outside of the main bevel gear 72, and a bidirectional lead screw 74 transversely placed inside the driven bevel gear 73. The stepper motor 71 is turned on and driven by the main bevel gear 72 to rotate forward through the driven bevel gear 72. The driven bevel gear 73 drives the bidirectional lead screw 74 to rotate linearly.

[0039] Furthermore, both sides of the bidirectional lead screw 74 are threadedly connected to lead screw sleeves 75, and brackets 76, which are fixed to the two sets of clamping cylinders 61, are fixed on the outside of the two sets of lead screw sleeves 75. The linearly rotating bidirectional lead screw 74 drives the two sets of lead screw sleeves 75 to move inward synchronously. The two sets of lead screw sleeves 75 drive the two round or square pipe fittings in the clamping state on the two sets of brackets 76 to move inward and connect, completing the straightening and seam alignment operation. This replaces the manual straightening and seam alignment operation, which is more accurate and faster, preventing errors from causing welding quality problems and improving the welding yield.

[0040] Both the platform 1 and the base cover 2 have horizontal sliding grooves 10 that slide with the brackets 76 around their perimeter. These grooves not only limit the sliding movement of the two sets of brackets 76 but also improve the displacement stability of the two sets of brackets 76, preventing them from shaking or tilting and causing misalignment or displacement during subsequent seam alignment. Furthermore, two sets of brackets 76 are fixed with displacement sensors 11. The displacement sensors 11, which move inward synchronously with the two sets of brackets 76 and are diagonally distributed, complete the secondary sensing triggering action. They are distributed diagonally along the longitudinal axis of the platform 1. The threads of the two bidirectional lead screws 74 and the two sets of lead screw sleeves 75 are opposite in direction, which facilitates the bidirectional lead screws 74 to drive the two sets of lead screw sleeves 75 to move inward and outward synchronously for reset.

[0041] Example 3, referring to Figures 1-6 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0042] Specifically, the two sets of triggering components are equipped with rotating components for linear rotation of automotive parts. The rotating components include housings 81 connected to the two sets of semi-circular frames 62. A servo motor 82 is fixed to the outside of one set of housings 81, and a drive gear 83 is sleeved on the output shaft of the servo motor 82. A rotating frame 84 rotates inside the two sets of housings 81 and meshes with the drive gear 83 through a tooth 85. A driven gear 86 rotates inside the other set of housings 81 and meshes with the tooth 85.

[0043] Under the sensing and triggering mechanism of two sets of displacement sensors 11, the servo motors 82 on two sets of housings 81 are turned on and drive the drive gears 83 to rotate. Since the two sets of semi-circular frames 62 are fitted together to form a complete circle, the two sets of rotating frames 84 are also fitted together to form a complete circle. With the rotational support of the two sets of guide rail grooves 12 and guide rails 13, the drive gears 83 drive the two sets of rotating frames 84 that are closed to form a complete circle through the convex teeth 85. The two sets of rotating frames 84 rotate linearly within the two sets of semi-circular frames 62. The two sets of rotating frames 84 that rotate linearly drive the driven gears 86 in the other two sets of housings 81 to rotate simultaneously through the convex teeth 85. This achieves the effect of rotating welding of two round or square pipes after the seam is joined, making the welding operation more efficient.

[0044] The inner sides of the two sets of rotating frames 84 are provided with guide rail grooves 12, and guide rails 13 fixed to the semi-circular frame 62 slide in the guide rail grooves 12. These guide rails limit the rotation of the two sets of rotating frames 84 during linear rotation, improve the rotational stability of the two sets of rotating frames 84 within the two sets of semi-circular frames 62, and when the two sets of semi-circular frames 62 and the rotating frames 84 and the protruding teeth 85 on them are closed, they form a complete circle, which is beneficial for the linear rotation operation of the two sets of rotating frames 84.

[0045] Specifically, both sets of rotating components are equipped with limiting components, including ratchet 91 fixed to the outside of driven gear 86 via a concentric shaft, pawl 92 hinged to the cover 81 on the ratchet 91, and spring 93 fixed to the cover 81 on one side of the pawl 92. The two sets of driven gears 86 rotate in tandem, driving the two sets of ratchet 91 to rotate synchronously. The two sets of ratchet 91 drive the two pawls 92 on them to perform a skipping action, and the two pawls 92 frequently compress and stretch the spring 93 on them. The two sets of driven gears 86 implement reverse limiting measures on the two sets of linearly rotating frames 84, ensuring the linear rotation stability of the two sets of rotating frames 84 driving the two round or square tubes.

[0046] Furthermore, a lifting head 94 is fixed on the other side of the pawl 92 and slides through the cover 81. During the linear rotation of the two round or square pipes driven by the two sets of rotating frames 84, the two pawls 92 drive the two lifting heads 94 to jump along with the two pawls 92. If it is necessary to release the reverse restriction measures of the two round or square pipes, the two sets of lifting heads 94 can be manually pulled upwards to force the two pawls 92 to compress the two springs 93 and disengage from the two ratchet wheels 91, thereby releasing the reverse restriction measures of the two round or square pipes. The two round or square pipes can then be rotated in the opposite direction by the two sets of rotating frames 84 to complete the reverse welding and visual monitoring operations of the two round or square pipes.

[0047] The working principle is as follows: First, two round or square pipe fittings are inserted into the round through-holes or square recesses in the two sets of clamping seats 63. Then, the two sets of clamping cylinders 61 are opened and drive the clamping seats 63 in the two sets of semi-circular frames 62 to move inward synchronously. The two sets of semi-circular frames 62 are then fitted together to form a complete circle, which squeezes and clamps the two round or square pipe fittings. At the same time, the two sets of moving trigger pressure plates 66 are forced to squeeze the elastic strip 65 under the reverse squeezing force generated by the clamping of the two round or square pipe fittings, until the two sets of moving trigger pressure plates 66 are fitted onto the two sets of fixed trigger pressure plates 64, thus completing the triggering action.

[0048] When the two sets of moving trigger pressure plates 66 and fixed trigger pressure plates 64 are triggered simultaneously, the stepper motor 71 is immediately controlled to start and drive the bevel gear 73 to rotate in the forward direction through the main bevel gear 72. The bevel gear 73 drives the screw sleeve 75 on the bidirectional screw 74 to move inward synchronously. The two sets of screw sleeves 75 drive the two sets of brackets 76 to slide inward in the transverse sliding groove 10, and at the same time, drive the diagonally distributed displacement sensors 11 to move inward until the two sets of brackets 76 drive the two round or square tubes in the clamping state to move inward and connect, and complete the straightening and alignment.

[0049] Immediately afterwards, the two sets of displacement sensors 11, which have moved into place, are triggered and immediately control the servo motors 82 on two sets of housings 81 to turn on and drive the drive gears 83 to rotate. Since the two sets of semicircular frames 62 are in contact to form a complete circle, the two sets of rotating frames 84 are also in contact to form a complete circle. With the rotational support of the two sets of guide rail grooves 12 and guide rails 13, the drive gears 83 drive the two sets of rotating frames 84, which are closed to form a complete circle, to rotate linearly within the two sets of semicircular frames 62 through the convex teeth 85. The two sets of rotating frames 84 rotating linearly drive the driven gears 86 in the other two sets of housings 81 to rotate accordingly through the convex teeth 85.

[0050] At the same time, the two sets of driven gears 86 that follow the rotation drive the two sets of ratchet 91 to rotate synchronously. The two sets of ratchet 91 drive the two pawls 92 on them to perform a skipping action. The two pawls 92 also compress and stretch the springs 93 on them, which synchronously drive the two lifting heads 94 to follow the two pawls 92 to perform a skipping action. The two sets of driven gears 86 achieve reverse restriction measures on the two sets of linearly rotating frames 84.

[0051] Two sets of rotating frames 84 drive two round or square tubes that have completed clamping and seam alignment to rotate linearly. Then, the lifting cylinder 52 is activated and drives the connector 53 to slide down in the vertical slide groove 51. The connector 53 drives the laser welding head on the laser welder 4 through the support arm 54 to move down to the seam welding area of ​​the two round or square tubes and perform adaptive laser welding. During this period, the industrial camera 55 and the laser cutting head sensor 56 monitor the welding image, distance and verticality between the laser welding head and the seam welding area in real time.

[0052] At the same time, the negative pressure suction pump 14 is turned on and generates negative pressure suction into the collection pipe 15. Under the action of negative pressure suction, the negative pressure suction head 16 absorbs the smoke and dust generated by the laser welding head in the weld seam area and transports it to the collection container 17 through the collection pipe 15. The collection container 17 is unscrewed periodically to clean the impurities inside.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A laser welding apparatus for processing automotive parts, characterized in that: Includes a stand (1), with a bottom cover (2) horizontally placed at the bottom of the stand (1), and a central standard scale groove (18) opened on the stand (1), and a vertical plate (3) vertically placed on the rear side of the stand (1), and a placement platform for temporary re-inspection of automotive parts provided on the front side of the stand (1). In addition, a laser welder (4) is provided on the upright plate (3) by means of an auxiliary component, and the auxiliary component includes a lifting cylinder (52) longitudinally placed on the rear side of the upright plate (3). Triggering components for clamping automotive parts are provided on both sides of the stand (1), and the triggering components include clamping cylinders (61) provided on the outside of the stand (1). A seam alignment component for calibrating automotive parts is provided inside the bottom cover (2), and the seam alignment component includes a stepper motor (71) embedded in the rear side of the bottom cover (2). In addition, the two sets of triggering components are provided with rotating components for linear rotation of automotive parts, and the two sets of rotating components are provided with limiting components.

2. The laser welding apparatus for processing automotive parts as described in claim 1, characterized in that: The auxiliary components also include a vertical slide groove (51) opened on the upright plate (3), and a connector (53) fixed on the piston rod of the lifting cylinder (52) and sliding with the vertical slide groove (51). A support arm (54) for installation with the laser welder (4) is fixed on the connector (53), and an industrial camera (55) for visual monitoring of the laser welding head is embedded in the laser welder (4). A laser cutting head sensor (56) for laser welding head distance monitoring is tilted and fixed on one side of the laser welder (4).

3. The laser welding apparatus for processing automotive parts as described in claim 2, characterized in that: A negative pressure suction pump (14) is fixed on the outside of the laser welder (4), and a collection tube (15) is connected to the inner end of the negative pressure suction pump (14). A negative pressure suction head (16) that is intersected with the laser welding head on the laser welder (4) is connected to the bottom end of the collection tube (15), and a collection container (17) is threaded to the outer end of the negative pressure suction pump (14).

4. The laser welding apparatus for processing automotive parts as described in claim 3, characterized in that: The triggering assembly also includes a semi-circular frame (62) fixed inside the piston rods of the two sets of clamping cylinders (61), and a clamping seat (63) fixed inside the two sets of semi-circular frames (62). A fixed triggering plate (64) is embedded inside the two sets of clamping seats (63), and an elastic strip (65) is embedded on the outer side of the two sets of clamping seats (63) near the fixed triggering plate (64). A moving triggering plate (66) that is pressed and triggered by the fixed triggering plate (64) is fixed inside the two sets of elastic strips (65).

5. The laser welding apparatus for processing automotive parts as described in claim 4, characterized in that: The two sets of clamping seats (63) have reserved cavities on the inner side near the fixed trigger pressure plate (64) that are matched with the triggering of the moving trigger pressure plate (66) on the elastic strip (65), and circular insertion holes are opened in the two sets of clamping seats (63), and square recesses are opened in the two sets of clamping seats (63) that match the circular insertion holes.

6. The laser welding apparatus for processing automotive parts as described in claim 5, characterized in that: The seam assembly also includes a main bevel gear (72) sleeved on the output shaft of the stepper motor (71), a driven bevel gear (73) meshing on the outside of the main bevel gear (72), and a bidirectional lead screw (74) transversely placed in the driven bevel gear (73) and rotating with the bottom cover (2). Both sides of the bidirectional lead screw (74) are threaded with lead screw sleeves (75), and brackets (76) fixed to the two sets of clamping cylinders (61) are fixed on the outside of the two sets of lead screw sleeves (75).

7. The laser welding apparatus for processing automotive parts as described in claim 6, characterized in that: The platform (1) and the base cover (2) are provided with horizontal sliding grooves (10) that slide with the brackets (76) around their perimeter. Displacement sensors (11) are fixed on two sets of brackets (76) and are distributed diagonally along the longitudinal axis of the platform (1). The screw threads of the two bidirectional lead screws (74) and the two sets of lead screw sleeves (75) are opposite in direction.

8. The laser welding apparatus for processing automotive parts as described in claim 7, characterized in that: The rotating assembly includes a housing (81) connected to two sets of semicircular frames (62), one set of housings (81) having a servo motor (82) fixed to the outside and a drive gear (83) sleeved on the output shaft of the servo motor (82), and a rotating frame (84) rotating inside the two sets of housings (81) and meshing with the drive gear (83) through a tooth (85), and a driven gear (86) rotating inside the other set of housings (81) and meshing with the tooth (85).

9. The laser welding apparatus for processing automotive parts as described in claim 8, characterized in that: The inner sides of the two sets of rotating frames (84) are provided with guide rail grooves (12), and guide rail strips (13) fixed to the semi-circular frame (62) slide in the guide rail grooves (12). After the two sets of semi-circular frames (62) and rotating frames (84) and the protruding teeth (85) on them are closed, they form a complete circle.

10. The laser welding apparatus for processing automotive parts as described in claim 9, characterized in that: The limiting component includes a ratchet (91) fixed to the outside of the driven gear (86) via a concentric shaft, a pawl (92) hinged to the cover (81) and a spring (93) fixed to the cover (81) on one side of the pawl (92), and a lifting head (94) that slides through the cover (81) on the other side of the pawl (92).

Images