Automobile component laser intelligent welding system

Abstract

The application discloses a kind of automobile parts laser intelligent welding systems, it is related to intelligent welding system technical field, including device shell and the turnover support, buffer intercept mechanism, positioning mechanism, welding mechanism being arranged in device shell;Turnover support, positioning plate is rotationally arranged thereon, and first component, second component to be laser welded are arranged on positioning plate;Buffer intercept mechanism, it drives first component, second component rotation and carries out elastic buffering, deceleration, intercept to rotating first component, second component;Positioning mechanism, it is connected to turnover support and carries out orientation to first component, second component;Welding mechanism, it carries out welding fixed operation to first component, second component.The present application can solve the problem that existing automobile parts welding intelligent welding system is used when component is prone to sudden change of thrust, acceleration effect and occurs shaking, welding place misplacement, the situation that welded position is disconnected, in turn, affects welding quality.

Description

Technical Field

[0001] This invention relates to the field of intelligent welding system technology, specifically to a laser intelligent welding system for automotive parts. Background Technology

[0002] Automotive components, such as gearbox housings and covers, require welding to achieve integrated molding. To ensure welding quality and weld sealing, double-sided welding is often used. Currently, intelligent welding systems for double-sided welding of automotive components typically apply rotational force directly to the positioning fixtures used for component positioning via motors or other drive devices, causing them to flip. However, in structures where the two parts are directly connected, the positioning fixture and the automotive component are suddenly subjected to a large rotational driving force, resulting in significant rotational acceleration. This sudden change in thrust and acceleration can cause them to wobble, misalign at the weld joint, or even break at the welded area, thus affecting the welding quality. Summary of the Invention

[0003] The purpose of this invention is to provide a laser intelligent welding system for automotive parts, in order to solve the problem that existing intelligent welding systems for automotive parts are prone to shaking, misalignment at the weld joint, and breakage of the welded parts due to sudden changes in thrust and acceleration, which affects the welding quality.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a laser intelligent welding system for automotive parts, comprising a device housing and a flipping bracket, a buffer stopping mechanism, a positioning mechanism, and a welding mechanism arranged within the device housing;

[0005] The flipping bracket has a rotatable positioning plate on it, and the positioning plate is arranged with the first component and the second component to be laser welded.

[0006] The buffer and stop mechanism drives the first component and the second component to rotate and provides elastic buffering, deceleration and stopping of the rotating first component and the second component.

[0007] The positioning mechanism engages with the flipping bracket and orients the first component and the second component.

[0008] The welding mechanism performs welding and fixing operations on the first component and the second component.

[0009] As a further description of the above technical solution:

[0010] The flipping bracket includes a first base frame, the positioning plate, and a limiting component. The positioning plate is rotatably connected to the bearing seat of the first base frame via a side pivot. A first positioning port is provided through the positioning plate. The first component is embedded in the first positioning port, and the second component is embedded in the second positioning port of the first component.

[0011] As a further description of the above technical solution:

[0012] The limiting component includes a plurality of rotating plates disposed on the positioning plate outside the first positioning port. The rotating plates are rotatably disposed on the rotating seat of the positioning plate and abut against the edge of the first component or the second component.

[0013] As a further description of the above technical solution:

[0014] The buffer stopping mechanism includes a second base frame, a first swing arm, a first motor, and an elastic clamping plate. A first connecting shaft on the first swing arm is rotatably mounted on the second base frame and connected to the output shaft of the first motor on the second base frame. The elastic clamping plate is rotatably connected to the second connecting shafts on both sides of the first swing arm. A torsion spring is sleeved on the second connecting shaft and its end is connected to the elastic clamping plate and the second connecting shaft. It applies a rotational elastic force to the elastic clamping plate in the direction of material inversion of the positioning plate.

[0015] As a further description of the above technical solution:

[0016] The end of the elastic clamping plate is provided with a C-shaped clamping block, which abuts against the edge of the end face of the positioning plate.

[0017] As a further description of the above technical solution:

[0018] The positioning mechanism includes a first electric cylinder and a support plate. The first electric cylinder is disposed on the bottom surface of the inner wall of the device housing, and its output end is connected to the support plate. The support plate abuts against the positioning plate.

[0019] As a further description of the above technical solution:

[0020] The support plate has a spherical structure.

[0021] As a further description of the above technical solution:

[0022] The welding mechanism includes a drive arm and welding equipment. The drive arm includes a lifting seat, a steering base, and a second swing arm. The lifting seat is connected to the output shaft of a second electric cylinder on the positioning base. The positioning base is positioned on the top of the inner wall of the device housing. The steering base is rotatably mounted on the lifting seat, and the output shaft of a second motor on the steering base is connected to the lifting seat. The output shaft of a third motor at one end of the second swing arm is connected to the steering base, and the welding equipment is mounted at the other end of the third motor.

[0023] As a further description of the above technical solution:

[0024] The other end of the second swing arm is provided with an installation port. The first eccentric disk is rotatably connected to the installation port through a rotating shaft eccentrically set on the side and is connected to the fourth motor on the inner wall of the installation port. The mounting seat at the inner end of the welding equipment is rotatably connected to the installation port through a rotating shaft on the side. The side of the second eccentric disk is also eccentrically set on the side, and the side of the second eccentric disk abuts against the first eccentric disk.

[0025] As a further description of the above technical solution:

[0026] The welding equipment is also equipped with a nozzle assembly. The top of the inner wall of the device housing is provided with an air inlet for connecting to an external high-pressure airflow generator. The bottom surface of its inner wall is provided with a centrally recessed V-shaped guide slope. Several outlets are provided on the V-shaped guide slope, and the outlets are connected to the main outlet on the outer surface of the device housing.

[0027] In summary, due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0028] The intelligent laser welding system for automotive parts of the present invention can achieve high-precision laser welding operations, stable flipping of parts, cleaning of parts during welding, and removal and collection of ejected impurities by setting up structures such as a flipping bracket, a buffer stop mechanism, a positioning mechanism, and a welding mechanism. In use, after the single-sided welding of the automotive component is completed, the first electric cylinder drives the support plate to move downward, moving it out of the flipping range of the positioning plate. The first motor then operates, driving the first swing arm to rotate, and further pushing the positioning plate to rotate through the elastic clamp. The first swing arm and the elastic clamp are elastically hinged, so that the thrust acting on the positioning plate gradually stabilizes and increases, ensuring that it rotates more stably under the thrust and that the positioning stability of the components on the positioning plate is maintained, preventing it from shaking due to sudden increases in thrust and acceleration. Afterward, the first motor drives the first swing arm to rotate and reset to a horizontal or inclined position. The elastic clamp rotates towards the flipping direction of the positioning plate and is in an inclined position under the elastic force of the torsion spring. When the positioning plate rotates to nearly 180°, it abuts against the elastic clamp. Through the elastic force of the torsion spring, an elastic thrust is formed on the positioning plate by the elastic clamp to suppress the positioning plate from continuing to rotate, thereby achieving the effects of elastic buffering, deceleration, and stopping. Afterward, the first electric cylinder drives the support plate to move upward to support, abut, and position the positioning plate. The above design enables a stable and enhanced flipping driving force to be applied to the positioning plate and its components during flipping. As the flipping nears completion, elastic buffering, deceleration, and stopping are implemented, ensuring a stable change in rotational acceleration during flipping. This prevents components from swaying, misaligning welds, or breaking apart of welded sections due to sudden changes in thrust and acceleration. This system is also adaptable to multi-angle laser welding operations on welds of components of different sizes and shapes. The above design achieves efficient and high-quality intelligent laser welding. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 The usage status of a laser intelligent welding system for automotive parts Figure 1 .

[0031] Figure 2 This is a partial cross-sectional view of a flip-up bracket in a laser intelligent welding system for automotive parts.

[0032] Figure 3 The usage status of a laser intelligent welding system for automotive parts Figure 2 .

[0033] Figure 4 This is a schematic diagram of the structure of the first swing arm and the elastic clamp in a laser intelligent welding system for automotive parts.

[0034] Figure 5 The usage status of a laser intelligent welding system for automotive parts Figure 3 .

[0035] Figure 6 This is a schematic diagram of the welding mechanism in a laser intelligent welding system for automotive parts.

[0036] Figure 7 This is a schematic diagram of the welding equipment in a laser intelligent welding system for automotive parts.

[0037] Figure 8 This is a diagram showing the usage status of welding equipment in a laser intelligent welding system for automotive parts.

[0038] Legend:

[0039] 1. Device housing; 11. V-shaped guide ramp; 2. Tilting bracket; 21. First base frame; 22. Positioning plate; 23. Limiting assembly; 24. Bearing seat; 25. First positioning port; 26. Rotating seat; 3. Buffer stopping mechanism; 31. Second base frame; 32. First swing arm; 33. First motor; 34. Elastic clamping plate; 35. First connecting shaft; 36. Second connecting shaft; 37. Torsion spring; 38. C-shaped clamping block; 4. Positioning mechanism; 41. First electric cylinder; 42. Support 5. Plate; 5. Welding mechanism; 51. Lifting seat; 52. Steering base; 521. Second motor; 53. Second swing arm; 531. Third motor; 532. Mounting port; 533. First eccentric plate; 534. Fourth motor; 54. Welding equipment; 541. Mounting seat; 542. Second eccentric plate; 55. Positioning base; 551. Second electric cylinder; 56. Nozzle assembly; 6. Air inlet; 100. First component; 110. Second component; 120. Second positioning port. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0042] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0043] In the description of the embodiments of the present invention, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0044] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0045] Please see Figure 1-8 The present invention provides a technical solution: a laser intelligent welding system for automotive parts, including a device housing 1 and a flipping bracket 2, a buffer stopping mechanism 3, a positioning mechanism 4, and a welding mechanism 5 arranged inside the device housing 1;

[0046] The flipping bracket 2 has a rotatable positioning plate 22, on which the first component 100 and the second component 110 to be laser welded are arranged;

[0047] The buffer and stop mechanism 3 drives the first component 100 and the second component 110 to rotate and provides elastic buffering, deceleration and stop for the rotating first component 100 and second component 110.

[0048] The positioning mechanism 4 connects to the flipping bracket 2 and orients the first component 100 and the second component 110.

[0049] The welding mechanism 5 performs welding and fixing operations on the first component 100 and the second component 110.

[0050] The flipping bracket 2 includes a first base frame 21, a positioning plate 22, and a limiting component 23. The positioning plate 22 is rotatably connected to the bearing seat 24 of the first base frame 21 via a side pivot. A first positioning port 25 is provided through the positioning plate 22. The first component 100 is embedded in the first positioning port 25, and the second component 110 is embedded in the second positioning port 120 of the first component 100. The limiting component 23 includes several rotating plates disposed on the positioning plate 22 outside the first positioning port 25. The rotating plates are rotatably disposed on the rotating seat 26 of the positioning plate 22 and abut against the edge of the first component 100 or the second component 110. Before welding, the first component 100 is sequentially inserted into the first positioning port 25, and the second component 110 is sequentially inserted into the second positioning port 120. By pushing the rotating plates, they are rotated and abut against the components, thus achieving convenient positioning of the automotive components to be welded.

[0051] The buffer stopping mechanism 3 includes a second base frame 31, a first swing arm 32, a first motor 33, and an elastic clamping plate 34. A first connecting shaft 35 on the first swing arm 32 is rotatably mounted on the second base frame 31 and connects to the output shaft of the first motor 33 on the second base frame 31. The elastic clamping plate 34 is rotatably connected to the second connecting shafts 36 on both sides of the first swing arm 32. A torsion spring 37 is sleeved on the second connecting shaft 36 and its end connects to the elastic clamping plate 34 and the second connecting shaft 36, applying a rotational elastic force to the elastic clamping plate 34 in the direction of material inversion towards the positioning plate 22. A C-shaped clamping block 38 is provided at the end of the elastic clamping plate 34, and the C-shaped clamping block 38 abuts against the edge of the end face of the positioning plate 22. The positioning mechanism 4 includes a first electric cylinder 41 and a support plate 42. The first electric cylinder 41 is arranged on the bottom surface of the inner wall of the device housing 1, and its output end connects to the support plate 42. The support plate 42 abuts against the positioning plate 22. After the single-sided welding of the automotive parts is completed, such as Figure 1 As shown, at this time, the first electric cylinder 41 drives the support plate 42 to move downward, moving it out of the flipping range of the positioning plate 22. The first motor 33 runs, driving the first swing arm 32 to rotate, and further pushing the positioning plate 22 to rotate through the elastic clamping plate 34. The first swing arm 32 is elastically hinged to the elastic clamping plate 34, so that the thrust acting on the positioning plate 22 gradually stabilizes and increases, ensuring that it rotates more stably under the thrust and that the positioning stability of the components on the positioning plate 22 is maintained, preventing it from shaking due to the sudden increase in thrust and acceleration. Specifically, as shown... Figure 3As shown; subsequently, the first motor 33 drives the first swing arm 32 to rotate and reset to a horizontal or inclined position. The elastic clamping plate 34, under the elastic force of the torsion spring 37, rotates towards the flipping material direction of the positioning plate 22 and is in an inclined position. When the positioning plate 22 rotates to nearly 180°, it abuts against the elastic clamping plate 34. Through the elastic force of the torsion spring 37, an elastic pushing force is formed between the elastic clamping plate 34 and the positioning plate 22 to inhibit the positioning plate 22 from continuing to rotate. This achieves the effects of elastic buffering, deceleration, and stopping. Specifically, as shown... Figure 5 As shown, the first electric cylinder 41 then drives the support plate 42 to move upward to support, abut, and position the positioning plate 22. This design achieves a stable and enhanced flipping driving force applied to the positioning plate and its components during flipping. When the flipping is about to complete, it provides elastic buffering, deceleration, and stopping, ensuring stable changes in rotational acceleration during flipping and preventing components from swaying, misaligning welds, or breaking welds due to sudden changes in thrust and acceleration. To ensure stable and interference-free docking with the positioning plate 22, the outer end of the C-shaped clamp 38 expands outward, meaning its cross-sectional dimensions gradually increase from the inside out, or its clamping width is greater than the thickness of the positioning plate 22.

[0052] The support plate 42 has a spherical structure to ensure that it can adaptively and stably abut and support the positioning plate 22 at different tilt angles. This structure can also be replaced by a straight plate with the support plate 42 connected to the ball shaft at the output end of the first electric cylinder 41 via a spherical groove on its end face, to ensure support with a larger contact surface with the positioning plate 22 and to ensure positioning stability.

[0053] The welding mechanism 5 includes a drive arm and a welding device 54. The drive arm includes a lifting seat 51, a steering base 52, and a second swing arm 53. The lifting seat 51 is connected to the output shaft of the second electric cylinder 551 on the positioning base 55. The positioning base 55 is positioned on the top of the inner wall of the device housing 1. The steering base 52 is rotatably mounted on the lifting seat 51, and the output shaft of the second motor 521 on it is connected to the lifting seat 51. The output shaft of the third motor 531 at one end of the second swing arm 53 is connected to the steering base 52, and the welding device 54 is mounted at the other end. By rotating the steering base 52 and the second swing arm 53, the distance between the rotation axis of the welding device 54 and the steering base 52 can be adjusted to accommodate laser welding operations on weld seams of components of different sizes and shapes.

[0054] The other end of the second swing arm 53 is provided with a mounting port 532. The first eccentric disk 533 is rotatably connected to the mounting port 532 via a side-eccentrically positioned rotating shaft and abuts against the fourth motor 534 on the inner wall of the mounting port 532. The mounting base 541 at the inner end of the welding equipment 54 is rotatably connected to the mounting port 532 via a side-mounted rotating shaft. A second eccentric disk 542 is also eccentrically positioned on its side, and the side of the second eccentric disk 542 abuts against the first eccentric disk 533. Thus, by driving the rotation of multiple first eccentric disks 533 to push the rotation of the second eccentric disk 542, high-precision adjustment of the tilt angle of the welding equipment 54 and multi-point support orientation are achieved to ensure the accuracy of laser welding.

[0055] The welding equipment 54 is also equipped with a nozzle assembly 56. The top of the inner wall of the device housing 1 is provided with an air inlet 6 for an externally mounted high-pressure airflow generator. The bottom surface of its inner wall is provided with a centrally recessed V-shaped guide slope 11, which has several outlets connected to the main outlet on the outer surface of the device housing 1. The nozzle assembly 56 moves with the welding equipment 54 to perform high-impact air shower cleaning on the welding area of ​​the component. The airflow entering the device housing 1 through the air inlet 6 blows against the positioning plate 22 and the surface of the component, further blowing away impurities. Guided by the V-shaped guide slope 11, the impurities are gradually discharged from the device housing 1 through the spaced outlets on its surface and then collected uniformly through the main outlet and the connected collection container.

[0056] In summary, due to the adoption of the above technical solutions, the laser intelligent welding system for automotive parts in this embodiment has the following advantages compared to the prior art:

[0057] The intelligent laser welding system for automotive parts of the present invention can achieve high-precision laser welding operations, stable flipping of parts, cleaning of parts during welding, and removal and collection of ejected impurities by setting up structures such as a flipping bracket, a buffer stop mechanism, a positioning mechanism, and a welding mechanism. In use, after the single-sided welding of the automotive component is completed, the first electric cylinder drives the support plate to move downward, moving it out of the flipping range of the positioning plate. The first motor then operates, driving the first swing arm to rotate, and further pushing the positioning plate to rotate through the elastic clamp. The first swing arm and the elastic clamp are elastically hinged, so that the thrust acting on the positioning plate gradually stabilizes and increases, ensuring that it rotates more stably under the thrust and that the positioning stability of the components on the positioning plate is maintained, preventing it from shaking due to sudden increases in thrust and acceleration. Afterward, the first motor drives the first swing arm to rotate and reset to a horizontal or inclined position. The elastic clamp rotates towards the flipping direction of the positioning plate and is in an inclined position under the elastic force of the torsion spring. When the positioning plate rotates to nearly 180°, it abuts against the elastic clamp. Through the elastic force of the torsion spring, an elastic thrust is formed on the positioning plate by the elastic clamp to suppress the positioning plate from continuing to rotate, thereby achieving the effects of elastic buffering, deceleration, and stopping. Afterward, the first electric cylinder drives the support plate to move upward to support, abut, and position the positioning plate. The above design enables a stable and enhanced flipping driving force to be applied to the positioning plate and its components during flipping. As the flipping nears completion, elastic buffering, deceleration, and stopping are implemented, ensuring a stable change in rotational acceleration during flipping. This prevents components from swaying, misaligning welds, or breaking apart of welded sections due to sudden changes in thrust and acceleration. This system is also adaptable to multi-angle laser welding operations on welds of components of different sizes and shapes. The above design achieves efficient and high-quality intelligent laser welding.

[0058] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A laser intelligent welding system for automotive parts, characterized by, The device comprises a device shell, a turnover support, a buffer stopping mechanism, a positioning mechanism and a welding mechanism arranged in the device shell. The turnover support is provided with a positioning plate rotatably arranged thereon, and the first component and the second component to be laser welded are arranged on the positioning plate. The buffer stopping mechanism drives the first component and the second component to rotate and elastically buffers, slows down and stops the rotating first component and second component. The positioning mechanism is connected to the turnover support and orients the first component and the second component. The welding mechanism performs welding and fixing operation on the first component and the second component. The turnover support comprises a first base, the positioning plate and a limiting assembly. The positioning plate is rotatably connected to the bearing seat of the first base through a rotating shaft on the side surface. The first positioning port is arranged through the positioning plate.

2. The laser intelligent welding system for automotive parts according to claim 1, wherein, The first component is embedded in the first positioning port, and the second component is embedded in the second positioning port of the first component.

3. The laser intelligent welding system for automotive parts according to claim 1, wherein The limiting assembly comprises a plurality of rotating plates arranged on the positioning plate outside the first positioning port.

4. The laser intelligent welding system for automotive parts according to claim 3, wherein The rotating plates are rotatably arranged on the rotating seat of the positioning plate and abut against the edge of the first component or the second component.

5. The laser intelligent welding system for automotive parts of claim 1, wherein, The buffer stopping mechanism comprises a second base, a first swing arm, a first motor and an elastic clamp plate.

6. The laser intelligent welding system for automotive parts according to claim 5, wherein, The first connecting shaft on the first swing arm is rotatably arranged on the second base and connected to the output shaft of the first motor on the second base. The elastic clamp plate is rotatably connected to the second connecting shaft on the side plates on both sides of the first swing arm. The torsional spring is sleeved on the second connecting shaft and connected to the elastic clamp plate and the second connecting shaft through the end surface. The end surface of the elastic clamp plate is provided with a C-shaped clamp block abutting against the end surface edge of the positioning plate. The positioning mechanism comprises a first electric cylinder and a support plate. The first electric cylinder is arranged on the inner wall bottom surface of the device shell. The output end of the first electric cylinder is connected to the support plate. The support plate is in a spherical structure. The welding mechanism comprises a driving arm and a welding device. The driving arm comprises a lifting seat, a steering base and a second swing arm. The lifting seat is connected to the output shaft of the second electric cylinder on the positioning base. The positioning base is positioned on the inner wall top surface of the device shell. The steering base is rotatably arranged on the lifting seat. The output shaft of the second motor on the steering base is connected to the lifting seat. The output shaft of the third motor on one end of the second swing arm is connected to the steering base. The other end of the second swing arm is provided with a mounting port. The first eccentric disc is rotatably connected to the mounting port through the eccentric rotating shaft on the side surface and connected to the fourth motor on the inner wall of the mounting port. The mounting seat on the inner end of the welding device is rotatably connected to the mounting port through the rotating shaft on the side surface.

7. The laser intelligent welding system for automotive parts of claim 5, wherein, The welding equipment is also equipped with a nozzle assembly. The top of the inner wall of the device housing is provided with an air inlet for connecting to an external high-pressure airflow generator. The bottom surface of its inner wall is provided with a centrally recessed V-shaped guide slope. Several outlets are provided on the V-shaped guide slope, and the outlets are connected to the main outlet on the outer surface of the device housing.

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