A clamping device for welding automobile parts

Abstract

The application relates to the technical field of automobile part machining, in particular to a clamping device for automobile part welding, which comprises a base, a support frame and a fixing frame are fixedly installed on the top surface of the base, a main control box is fixedly installed on the outer wall of the support frame, a laser welding structure for welding parts is fixedly installed on one side of the support frame close to the fixing frame, a clamping structure for fixing parts is fixedly installed on the upper surface of the fixing frame, the steel wire rope is used to bind and fix the parts, the flexibility and adjustability of the steel wire rope can tightly fit the contours of various irregular automobile parts, the steel wire rope can adapt to parts with various complex curved surfaces, part loosening can be effectively avoided, meanwhile, the steel wire rope fixing mode allows the parts to have a certain deformation space when the parts are subjected to thermal expansion and cold contraction during welding, the performance and reliability of the automobile parts are ensured, the steel wire rope can expose the weld, a clear and unobstructed operation area is provided for subsequent welding work, and welding inconvenience and quality hidden dangers caused by the shielding of the steel wire rope can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile part machining, in particular to a clamping device for automobile part welding. BACKGROUND

[0002] The clamping device for automobile part welding plays a key role in automobile part welding, can tightly fix various complex parts, effectively prevents the parts from loosening during welding, ensures the stability of the welding process, comprehensively assists the automobile part welding work to be efficiently and high-quality completed, and improves automobile manufacturing production efficiency and product quality.

[0003] After massive retrieval, the existing technology with the announcement number CN113829260A discloses an automobile part clamping device for automobile repair, which comprises a bottom plate, two sliding support assemblies are arranged on the top of the bottom plate, a lifting assembly is arranged in the sliding support assembly, a direction adjusting assembly is arranged on the top of the lifting assembly, a clamping assembly is arranged on one side of the direction adjusting assembly, the sliding support assembly comprises a sliding plate, a plurality of inclined rods are arranged between the top of the sliding plate and the lifting assembly, a connecting plate is arranged on one side of the inclined rod, a fixing assembly is arranged on the bottom of the connecting plate, the lifting assembly comprises a fixing sleeve, a clamping groove rod is arranged in the fixing sleeve, a clamping assembly is arranged on the fixing sleeve, the direction adjusting assembly comprises a vertical plate, a rocker and a fixing column are arranged on one side of the vertical plate, a spring II is arranged between the rocker and the fixing column, and a penetrating rod is arranged on one end of the rocker.

[0004] Therefore, based on the above retrieval and in combination with the existing technology, in the field of automobiles, the shapes of parts are irregular and the sizes are different, but the patent has certain limitations when dealing with automobile parts with complex curved surfaces, so that the clamp is difficult to fit the complex profile of the parts, the parts may be loose, the welding effect is affected, and the traditional rigid clamp cannot provide enough deformation space when the parts expand due to welding and contract, which easily causes stress concentration in the parts, and the parts may crack, deform and have other serious defects, thereby affecting the performance and reliability of the automobile parts. SUMMARY

[0005] The application aims to provide a clamping device for automobile part welding to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the application provides the following technical scheme: a clamping device for automobile part welding, comprising a base, a support frame and a fixing frame are fixedly installed on the top surface of the base, a main control box is fixedly installed on the outer wall of the support frame, a laser welding structure for welding parts is fixedly installed on one side of the support frame close to the fixing frame, and a clamping structure for fixing parts is fixedly installed on the upper surface of the fixing frame.

[0007] The laser welding structure comprises a mechanical arm, which is located on one side of a support frame, one end of the mechanical arm is fixedly installed with a laser welding machine, the bottom end of the laser welding machine is fixedly installed with a laser welding head, and the outer wall of the laser welding head is installed with a laser emitter for assisting positioning welding.

[0008] The clamping structure comprises a fixed seat, which is located on the top surface of the fixed frame, the outer wall of the fixed seat is fixedly sleeved with a fixed ring, the outer wall of the fixed ring is rotatably installed with a turnover ring, and the outer wall of the turnover ring is installed with a plurality of steel wires for fixing parts.

[0009] As a further scheme of the present application, one end of each of the steel wires away from the turnover ring is provided with a storage structure for winding the steel wire, and the storage structure is arranged on the outer wall of the fixed ring.

[0010] As a further scheme of the present application, the storage structure comprises an outer cover, a fixed shaft is inserted into the inner cavity of the outer cover, and the fixed shaft is fixedly connected with the outer wall of the fixed ring.

[0011] As a further scheme of the present application, the top surface of the outer cover is fixedly installed with a positioning bolt for positioning the unfolded steel wire, and the inner cavity of the positioning bolt is provided with a positioning groove.

[0012] As a further scheme of the present application, one side of the winding roller is fixedly installed with a sawtooth ring I, which is used to further prevent the winding roller from rotating randomly.

[0013] As a further scheme of the present application, the buckle structure comprises a fixed block, a plurality of fixed blocks are provided and fixedly installed on the outer wall of the turnover ring, one side of each fixed block is rotatably connected with a fixing buckle for fixing the steel wire, and the fixing buckle is clamped on the outer wall of the fixed block.

[0014] As a further further scheme of the present application, the inner wall of the fixing seat is fixedly provided with an operation plate, the upper surface of the operation plate is fixedly provided with an auxiliary structure for further pulling the steel wire rope fixing part, and the bottom surface of the operation plate is rotatably provided with an opening and closing structure for facilitating replacement of parts.

[0015] As a further further scheme of the present application, the auxiliary structure comprises positioning seats, the positioning seats are provided in plurality and are fixedly installed at the upper end of the operation plate, a regulating bolt is threadedly connected to each positioning seat, and the top end of the regulating bolt is rotatably connected with a hook for hooking the steel wire rope.

[0016] As a further further scheme of the present application, the opening and closing structure comprises a driving ring rotatably installed in the interior of the outer cover, the bottom end of the driving ring is rotatably connected with a plurality of transmission rods, one end of each transmission rod is rotatably connected with an opening and closing plate, and the top surface of the opening and closing plate is rotatably connected with the operation plate.

[0017] As a further further scheme of the present application, the inner cavity of the fixing seat is fixedly provided with an electric push rod, the bottom end of the electric push rod is fixedly connected with the upper surface of the fixing frame, and the top end of the electric push rod is fixedly provided with a material plate for supporting parts.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] 1. When the present application is used, the steel wire rope is used to bind and fix the parts, the flexibility and adjustability of the steel wire rope can tightly fit the contours of various irregularly shaped automobile parts, can adapt to various complex curved surface parts, can effectively prevent the parts from loosening, can ensure the stability of the parts during welding, can greatly improve the welding quality, the steel wire rope fixing method allows the parts to have a certain deformation space during welding thermal expansion and cold contraction, can reduce the risk of cracks, deformation and other defects caused by stress concentration in the parts, can protect the performance and reliability of the automobile parts, and the steel wire rope can expose the weld, can provide a clear and unobstructed operation area for subsequent welding work, and can effectively avoid the inconvenience and quality risks caused by the shielding of the steel wire rope.

[0020] 2. When the present application is used, the storage structure, the buckle structure and the auxiliary structure work together to greatly improve the efficiency and quality of the device for fixing parts, the winding roller in the storage structure cooperates with the torsion spring to allow the steel wire rope to be freely wound and unwound, saves operation time, the positioning bolt and the nut are used to fix the steel wire rope to prevent loosening, the fixing block and the fixing buckle of the buckle structure are used to quickly fix and disassemble the steel wire rope, the number of steel wire ropes can be easily adjusted, different parts can be flexibly adapted, the positioning seat, the regulating bolt and the hook of the auxiliary structure are used to rotate the regulating bolt to pull the steel wire rope to tightly fit the parts, to avoid loosening, to realize fine adjustment of the clamping force, to further enhance the stability of the steel wire rope clamping, and to meet the complex welding requirements.

[0021] 3、The application uses the opening and closing structure, the motor drives the gear, the gear sleeve drives the driving ring, thereby controlling the rotation of the opening and closing plate to realize the opening and closing of the center groove, the parts can be replaced without removing the steel wire rope restriction and adjusting the tightness, the operation steps are reduced, the repeated adjustment error is avoided, the production efficiency is effectively improved, and the efficient and stable operation of the production process is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of a clamping device for welding automobile parts;

[0023] Figure 2 It is a schematic diagram of the clamping structure of a clamping device for welding automobile parts;

[0024] Figure 3 It is a schematic diagram of the storage structure of a clamping device for welding automobile parts;

[0025] Figure 4 It is a sectional view of the storage structure of a clamping device for welding automobile parts;

[0026] Figure 5 It is a schematic diagram of the auxiliary structure of a clamping device for welding automobile parts;

[0027] Figure 6 It is a sectional view of the opening and closing structure of a clamping device for welding automobile parts;

[0028] Figure 7 It is a bottom view of the opening and closing structure of a clamping device for welding automobile parts.

[0029] In the figure: 1, base; 2, support frame; 3, fixed frame; 4, main control box; 501, mechanical arm; 502, laser welding machine; 503, laser welding head; 601, fixed seat; 602, fixed ring; 603, turnover ring; 604, steel wire rope; 605, cover; 606, fixed shaft; 607, winding roller; 608, torsional spring; 609, positioning bolt; 610, nut; 611, sawtooth ring I; 612, sliding plate; 613, sawtooth ring II; 614, return spring; 615, fixed block; 616, fixed buckle; 617, clamping block; 618, slot block; 619, operation plate; 7, mounting plate; 8, adjusting seat; 901, positioning seat; 902, adjusting bolt; 903, hook; 101, driving ring; 102, transmission rod; 103, opening and closing plate; 104, gear sleeve; 105, motor; 106, gear; 11, electric push rod; 12, material plate. DETAILED DESCRIPTION

[0030] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present application.

[0031] Embodiment 1: see Figures 1-3 A clamping device for welding automobile parts, comprising a base 1, a support frame 2 and a fixed frame 3 are fixedly installed on the top surface of the base 1 by bolts, and the fixed frame 3 is located on one side of the support frame 2, a main control box 4 is fixedly installed on the outer wall of the support frame 2, and a laser welding structure for welding parts is fixedly installed on the side of the support frame 2 close to the fixed frame 3, and a clamping structure for fixing parts is fixedly installed on the upper surface of the fixed frame 3;

[0032] The laser welding structure comprises a mechanical arm 501 located on one side of the support frame 2, one end of the mechanical arm 501 is fixedly installed with a laser welding machine 502, the bottom end of the laser welding machine 502 is fixedly installed with a laser welding head 503, and a laser emitter for assisting positioning welding is installed on the outer wall of the laser welding head 503. The light spot emitted by the laser emitter is aligned with the welding starting point, the laser welding machine 502 is started to weld, and the welding position is adjusted in real time according to the light spot during the welding process;

[0033] The clamping structure comprises a fixed seat 601 located on the top surface of the fixed frame 3, a fixed ring 602 is fixedly sleeved on the outer wall of the fixed seat 601, a turnover ring 603 is rotatably installed on the outer wall of the fixed ring 602 through a pin shaft, a plurality of steel wires 604 for fixing parts are installed on the outer wall of the turnover ring 603, the plurality of steel wires 604 are covered on the parts by rotating the turnover ring 603, the parts are fixed by the flexibility and adjustability of the steel wires 604, and the clamping and positioning of the parts are realized;

[0034] Specifically, the outer wall of the support frame 2 is fixedly installed with a mounting plate 7 for positioning the mechanical arm 501 by bolts, and the mechanical arm 501 is fixedly installed on the top surface of the mounting plate 7, the bottom surface of the base 1 is fixedly installed with an adjusting seat 8 for adjusting the horizontal state of the device by bolts, the adjusting seat 8 can keep the base 1 in a horizontal state by adjusting its height according to the ground conditions, ensure the stable placement of the whole device, avoid the displacement of the parts due to inclination, affect the welding quality, provide a stable basis for the precise welding operation of the laser welding head 503, guarantee the welding precision, make the device adapt to various complex working scenes, and effectively improve the welding quality and production efficiency of automobile parts;

[0035] More specifically, the steel wire rope 604 is a ceramic fiber reinforced composite steel wire rope, which can effectively block heat conduction by using the ceramic fiber with extremely low thermal conductivity and high melting point, thereby reducing the influence on the steel wire rope 604 during welding;

[0036] Each of the steel wire ropes 604 is provided with a storage structure for winding the steel wire rope 604 away from one end of the turnover ring 603, and the storage structure is arranged on the outer wall of the fixing ring 602. The other end of each of the steel wire ropes 604 is provided with a buckle structure for fixing the steel wire rope 604, and the buckle structure is fixedly installed on the outer wall of the turnover ring 603.

[0037] Please refer to Figures 2-4 The storage structure comprises an outer cover 605, a fixed shaft 606 is inserted into the inner cavity of the outer cover 605, and the fixed shaft 606 is fixedly connected with the outer wall of the fixing ring 602. A winding roller 607 for storing the steel wire rope 604 is rotatably installed in the inner cavity of the outer cover 605, and one end of the steel wire rope 604 is wound around the outer wall of the winding roller 607;

[0038] Specifically, by rotating the turnover ring 603, the steel wire rope 604 is stretched to drive the winding roller 607 to rotate. The inner wall of the winding roller 607 is fixedly installed with a torsion spring 608, and one end of the torsion spring 608 is fixedly connected with the outer wall of the fixed shaft 606. The torsion spring 608 enables the winding roller 607 to reset, so that the steel wire rope 604 can be freely wound and unwound, thereby saving operation time.

[0039] The top surface of the outer cover 605 is fixedly installed with a positioning bolt 609 for positioning the unfolded steel wire rope 604, and the inner cavity of the positioning bolt 609 is provided with a positioning groove. The outer wall of the positioning bolt 609 is threadedly sleeved with a nut 610.

[0040] Specifically, when the one end of the steel wire rope 604 is inserted into the positioning groove (the outer diameter of the steel wire rope 604 is greater than the inner diameter of the positioning groove) and is clamped in the positioning bolt 609, during the clamping process, the steel wire rope 604 uniformly and outwardly extrudes the inner wall of the positioning groove. The positioning groove is extruded by the steel wire rope 604, which causes the positioning groove to expand outward, thereby allowing the one end of the positioning bolt 609 close to the nut 610 to be outwardly expanded. At this time, the nut 610 is rotated to move along the positioning bolt 609, thereby gradually shrinking the positioning groove and tightly clamping the steel wire rope 604, thereby achieving the function of firmly fixing the steel wire rope 604. The clamped parts can be stably constrained to avoid loosening of the steel wire rope 604 during processing, thereby providing a solid guarantee for high-quality welding of automobile parts.

[0041] More specifically, the positioning bolt 609 is made of alloy structural steel, which has a certain toughness and can avoid brittle fracture under stress.

[0042] One side of the winding roller 607 is fixedly provided with a sawtooth ring one 611, and the sawtooth ring one 611 is used to further prevent the winding roller 607 from rotating at will. The outer wall of the positioning pin 609 is slidably provided with a sliding plate 612, the bottom end of the sliding plate 612 penetrates the outer cover 605 and is fixedly provided with a sawtooth ring two 613, and the sawtooth ring two 613 is engaged with the sawtooth ring one 611;

[0043] Specifically, the sliding plate 612 is located on one side of the nut 610. When the nut 610 is rotated, the sliding plate 612 is pushed to move, thereby driving the sawtooth ring two 613 to approach the sawtooth ring one 611 and engage with it to limit the rotation of the winding roller 607. Meanwhile, the inner wall of the outer cover 605 is fixedly provided with a return spring 614, and the return spring 614 is fixedly connected with the sawtooth ring two 613. When the nut 610 is reversely moved, the return spring 614 pulls the sawtooth ring two 613 to retract and reset, so that it is separated from the sawtooth ring one 611 and the restriction on the winding roller 607 is released.

[0044] More specifically, the outer wall of the outer cover 605 is provided with a sliding groove for providing movement of the sliding plate 612, and the sliding plate 612 is located in the sliding groove.

[0045] Please refer to Figure 4 The buckle structure includes a plurality of fixed blocks 615, which are fixedly installed on the outer wall of the turnover ring 603. Each fixed block 615 is rotatably connected with a fixing buckle 616 for fixing the steel wire rope 604 on one side through a pin shaft, and the fixing buckle 616 is clamped to the outer wall of the fixed block 615. The end of each steel wire rope 604 away from the outer cover 605 is sleeved on the outer wall of the fixed block 615.

[0046] Please refer to Figure 3 The outer surface of the turnover ring 603 is fixedly provided with a plurality of clamping blocks 617 for positioning the turnover ring 603. The outer wall of the fixed ring 602 is fixedly provided with a plurality of slot blocks 618. The inner cavity of each slot block 618 is provided with a slot for clamping the clamping block 617. Each clamping block 617 is clamped in the slot after being rotated by the turnover ring 603. When the steel wire rope 604 blocks the weld, the fixing buckle 616 corresponding to the steel wire rope 604 is turned over to disconnect the steel wire rope 604 from the fixed block 615, so that the weld is exposed, providing a clear and unobstructed operation area for subsequent welding work, effectively avoiding the inconvenience and quality risks caused by the blocking of the steel wire rope 604.

[0047] Embodiment 2: Please refer to Figures 1-2 , Figure 5The difference between the clamping device for welding automobile parts and the embodiment 1 is that the inner wall of the fixing seat 601 is fixedly provided with an operation plate 619, the upper surface of the operation plate 619 is fixedly provided with an auxiliary structure for further pulling the steel wire rope 604 to fix the parts, and the bottom surface of the operation plate 619 is rotatably provided with an opening and closing structure for facilitating replacement of the parts.

[0048] The auxiliary structure comprises a plurality of positioning seats 901 which are fixedly arranged at the upper end of the operation plate 619, and each positioning seat 901 is threadedly connected with an adjusting bolt 902, and the top end of the adjusting bolt 902 is rotatably connected with a hook 903 for hooking the steel wire rope 604 through a bearing.

[0049] Specifically, the hook 903 is clamped with the steel wire rope 604, the inner cavity of the positioning seat 901 is provided with a moving cavity for lifting the adjusting bolt 902, and the hook 903 is pulled to gradually move downward by rotating the adjusting bolt 902, so as to better fit the parts and strengthen the clamping effect, thereby avoiding loosening of the parts.

[0050] Embodiment 3: please refer to Figures 6-7 The difference between the clamping device for welding automobile parts and the embodiment 1 is that the opening and closing structure comprises a driving ring 101 rotatably arranged in the inner cavity of the outer cover 605, the bottom end of the driving ring 101 is rotatably connected with a plurality of transmission rods 102 through a pin shaft, one end of each transmission rod 102 is rotatably connected with an opening and closing plate 103 through a pin shaft, and the top surface of the opening and closing plate 103 is rotatably connected with the operation plate 619 through a pin shaft.

[0051] Specifically, the center of the operation plate 619 is provided with a circular center groove, and the opening and closing of the circular center groove is changed by rotating the plurality of opening and closing plates 103.

[0052] More specifically, the bottom end of the driving ring 101 is fixedly provided with a gear sleeve 104 for driving the driving ring 101 to rotate, the inner cavity of the outer cover 605 is fixedly provided with a supporting plate for supporting the gear sleeve 104, the inner wall of the outer cover 605 is fixedly provided with a motor 105 through a connecting plate, the output shaft of the motor 105 is fixedly provided with a gear 106, and the gear 106 is engaged with the gear sleeve 104, the motor 105 drives the gear 106 to rotate, so that the gear sleeve 104 drives the driving ring 101 to rotate, and then controls the plurality of transmission rods 102 to drive the opening and closing plate 103 to rotate around the pin shaft connected with the operation plate 619, the rotation of the plurality of opening and closing plates 103 makes the circular center groove in the center of the operation plate 619 open, and then the parts placed on the operation plate 619 fall downward, so that the parts can be replaced without releasing the restriction of the steel wire rope 604, and the tightness of the steel wire rope 604 does not need to be adjusted again, thereby reducing the operation steps, avoiding errors that may be introduced due to repeated adjustment of the tightness of the steel wire rope 604, effectively improving the overall production efficiency, and ensuring the efficiency and stability of the production process.

[0053] Please refer to Figure 2 、 Figure 6 The inner cavity of the fixed seat 601 is fixedly provided with an electric push rod 11, and the bottom end of the electric push rod 11 is fixedly connected with the upper surface of the fixed frame 3, and the top end of the electric push rod 11 is fixedly provided with a material plate 12 for supporting parts, and one side of the fixed seat 601 is provided with an open slot for taking parts, and one side of the material plate 12 is provided with an inductor for detecting whether the opening and closing plate 103 supports the parts, and the material plate 12 is lifted by the electric push rod 11 to catch the parts, so as to be taken out from the open slot subsequently.

[0054] The working principle of the present application is:

[0055] First, a group of parts to be welded are placed in the center groove on the operation plate 619, the parts are supported by the opening and closing plate 103, the turning ring 603 is rotated, each clamping block 617 is inserted into the slot block 618, so that the steel wire rope 604 fully covers the parts, and the flexibility and adjustability of the steel wire rope 604 are used for binding and fixed connection;

[0056] When the steel wire rope 604 blocks the weld, the fixed buckle 616 corresponding to the steel wire rope 604 is turned, the connection between the steel wire rope 604 and the fixed block 615 is released, the winding roller 607 is driven to rotate by the torsional spring 608, and then the steel wire rope 604 is recycled, so as to expose the weld of the parts;

[0057] Then the steel wire rope 604 is clamped into the positioning bolt 609, the nut 610 is rotated to move along the positioning bolt 609, so that the positioning bolt 609 clamps the steel wire rope 604 to prevent the steel wire rope 604 from loosening, and at the same time, when the nut 610 moves, the sliding plate 612 is pushed to drive the sawtooth ring two 613 to engage with the sawtooth ring one 611, so as to limit the rotation of the winding roller 607, so as to further strengthen the fixation of the steel wire rope 604;

[0058] At the same time, the adjusting bolt 902 is rotated to drive the hook 903 to pull down the steel wire rope 604, further close to the parts, and strengthen the clamping effect;

[0059] Then the mechanical arm 501 drives the laser welding machine 502 to move to the weld, the laser spot is emitted by the laser emitter, and the laser welding head 503 aligns with the welding starting point according to the laser spot, and is ready for welding;

[0060] Finally, when the part needs to be replaced, the motor 105 is started to drive the gear 106 to rotate, the toothed sleeve 104 engaged with the gear 106 drives the driving ring 101 to rotate, the driving ring 101 drives the opening and closing plate 103 to rotate around the pin shaft connected with the operation plate 619 through the transmission rod 102, the center circle groove of the operation plate 619 is opened, the part placed on the operation plate 619 falls down, the material plate 12 is lifted to catch the part by cooperating with the electric push rod 11, so that the part is taken out from the opening groove in the subsequent, then the new part is placed on the material plate 12, the part is moved upward to the circle center groove by cooperating with the electric push rod 11, the driving ring 101 is controlled to rotate reversely by the motor 105, so that the plurality of opening and closing plates 103 gradually combine, when the opening and closing plate 103 contacts the part and supports the part from the bottom, the inductor detects that the opening and closing plate 103 has supported the part, so that the material plate 12 is moved downward to reset by the electric push rod 11, so that when the same type of parts are welded, the new part can be replaced without adjusting the steel wire rope 604 again, the operation steps and errors are reduced, and the production efficiency is improved.

[0061] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A clamping device for welding automotive parts, comprising a base (1), characterized in that: The top surface of the base (1) is fixedly installed with a support frame (2) and a fixing frame (3). The outer wall of the support frame (2) is fixedly installed with a main control box (4). The side of the support frame (2) close to the fixing frame (3) is fixedly installed with a laser welding structure for welding parts. The upper surface of the fixing frame (3) is fixedly installed with a clamping structure for fixing parts. The laser welding structure includes a robotic arm (501) located on one side of the support frame (2). A laser welding machine (502) is fixedly installed at one end of the robotic arm (501). A laser welding head (503) is fixedly installed at the bottom end of the laser welding machine (502). A laser emitter for assisting in positioning welding is installed on the outer wall of the laser welding head (503). The laser emitter emits a spot to align with the welding starting point, and the position and angle of the laser welding machine (502) are precisely adjusted. During the welding process, the welding path of the laser beam is adjusted in real time according to the spot to ensure welding accuracy. The clamping structure includes a fixed seat (601) located on the top surface of the fixed frame (3). A fixed ring (602) is fixedly sleeved on the outer wall of the fixed seat (601). A flip ring (603) is rotatably installed on the outer wall of the fixed ring (602). Multiple steel wire ropes (604) for fixing parts are installed on the outer wall of the flip ring (603). By rotating the flip ring (603), the multiple steel wire ropes (604) cover the parts. The flexibility and adjustability of the steel wire ropes (604) are used to bind and fix the parts, thereby achieving clamping and positioning of the parts. Each wire rope (604) is provided with a storage structure for winding the wire rope (604) at one end away from the flip ring (603), and the storage structure is provided on the outer wall of the fixing ring (602). The other end of each wire rope (604) is snapped with a buckle structure for fixing the wire rope (604), and the buckle structure is fixedly installed on the outer wall of the flip ring (603). The storage structure includes an outer cover (605), a fixed shaft (606) is inserted into the inner cavity of the outer cover (605), and the fixed shaft (606) is fixedly connected to the outer wall of the fixed ring (602). A winding roller (607) for storing the wire rope (604) is rotatably installed in the inner cavity of the outer cover (605), and one end of the wire rope (604) is wound around the outer wall of the winding roller (607). The top surface of the outer cover (605) is fixedly installed with a positioning bolt (609) for positioning the unfolded wire rope (604), and the inner cavity of the positioning bolt (609) is provided with a positioning groove, and the outer wall of the positioning bolt (609) is threaded with a nut (610). A serrated ring (611) is fixedly installed on one side of the take-up roller (607), and the serrated ring (611) is used to further prevent the take-up roller (607) from rotating arbitrarily. A sliding plate (612) is slidably sleeved on the outer wall of the positioning bolt (609). The bottom end of the sliding plate (612) passes through the outer cover (605) and is fixedly installed with a serrated ring (613), and the serrated ring (613) meshes with the serrated ring (611).

2. The clamping device for welding automotive parts according to claim 1, characterized in that: The buckle structure includes a fixing block (615), which has multiple fixing blocks (615) and is fixedly installed on the outer wall of the flip ring (603). Each fixing block (615) has a fixing buckle (616) for fixing the wire rope (604) rotatably connected to one side, and the fixing buckle (616) is snapped into the outer wall of the fixing block (615). The end of each wire rope (604) away from the outer cover (605) is sleeved on the outer wall of the fixing block (615).

3. The clamping device for welding automotive parts according to claim 1, characterized in that: An operating plate (619) is fixedly installed on the inner wall of the fixed base (601). An auxiliary structure for further pulling the steel wire rope (604) fixing parts is fixedly installed on the upper surface of the operating plate (619). An opening and closing structure for easy replacement of parts is rotatably installed on the bottom surface of the operating plate (619).

4. The clamping device for welding automotive parts according to claim 3, characterized in that: The auxiliary structure includes a positioning seat (901), which has multiple positions and is fixedly installed on the upper end of the operating plate (619). Each positioning seat (901) is threadedly connected to an adjusting bolt (902), and the top end of the adjusting bolt (902) is rotatably connected to a hook (903) for hooking the wire rope (604).

5. The clamping device for welding automotive parts according to claim 3, characterized in that: The opening and closing structure includes a drive ring (101), which is rotatably installed inside the outer cover (605). The bottom end of the drive ring (101) is rotatably connected to multiple transmission rods (102). One end of each transmission rod (102) is rotatably connected to an opening and closing plate (103), and the top surface of the opening and closing plate (103) is rotatably connected to the operating plate (619).

6. The clamping device for welding automotive parts according to claim 1, characterized in that: An electric push rod (11) is fixedly installed in the inner cavity of the fixed base (601), and the bottom end of the electric push rod (11) is fixedly connected to the upper surface of the fixed frame (3). A material plate (12) for supporting parts is fixedly installed at the top end of the electric push rod (11).

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