Automobile A column welding equipment

Abstract

The utility model relates to automobile A column welding equipment. Comprising a frame body, a movable table, a cavity body, a limiting assembly and a plurality of welding mechanisms. The movable table is movably connected with the frame body, a workpiece is placed in the cavity body, and the limiting assembly is annularly arranged in the cavity body. The welding mechanism comprises a first welding mechanism, a second welding mechanism and a third welding mechanism for welding different parts of the workpiece. The limiting assembly comprises various pressing assemblies; and a lifting mechanism adjusts the position. According to the equipment, through reasonable design, the welding efficiency and quality are improved, and leather and aggregate can be accurately welded together.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding equipment technical field, concretely relates to a kind of automobile A column welding equipment. BACKGROUND

[0002] With the vigorous development of automobile industry, the requirement of consumer to automobile quality, safety and comfort increases day by day.In the automobile body structure, A column as the key support part, its aesthetic degree and quality sense importance highlights increasingly.In the manufacturing process of A column, need to tightly cover skin material outside aggregate, and the most critical process is the welding integration of skin material and aggregate edge.

[0003] Traditional processing mode is by artificial hand-held piece to be welded, it is moved to the ultrasonic welding gun at fixed position and welded.In operation process, worker needs to adjust the position of piece to be welded according to the shape of edge to be welded, and sequentially completes welding.However, this mode has many disadvantages, because the shape of welding head of welding gun is fixed, when encountering curved edge, either need to replace the welding head matched with curved shape, or need to move piece to be welded to another fixed welding position to continue welding.In this way, not only lead to low welding efficiency, but also seriously affect the consistency of welding, so that welding quality is uneven.

[0004] Therefore, the above problems need to be solved. UTILITY MODEL CONTENT

[0005] The utility model aims at overcoming the above shortcomings, and provides an automobile A column welding equipment with high efficiency and consistent welding.The equipment can accurately weld skin material and aggregate in automobile A column, and realize high-quality welding of straight part, first curved part and second curved part of aggregate.Through specially designed limiting assembly and various flexible welding mechanisms, it is not necessary to frequently replace welding head or move piece to be welded to other fixed welding position as in traditional mode, so as to greatly improve welding efficiency, ensure stable and reliable quality of each welding point, and meet the high requirements of A column aesthetic, quality sense and structural stability in automobile production.

[0006] Technical solution: The utility model provides an automobile A-pillar welding device, including a frame and a movable platform, wherein the movable platform is arranged under the frame and is movably connected to the frame; a pair of cavities, wherein the cavities are arranged on the movable platform and are used to place workpieces, wherein the workpieces include leather and aggregate, and the leather is wrapped around the outside of the aggregate; a limiting component, wherein the limiting component is arranged around the cavity and is used to press the workpiece into the cavity; a pair of first welding mechanisms, a pair of second welding mechanisms, and a pair of third welding mechanisms, wherein the first welding mechanism, the second welding mechanism, and the third welding mechanism are arranged in sequence above the frame, wherein the first welding mechanism is used to weld the leather to the straight portion of the outer edge of the aggregate, the second welding mechanism is used to weld the leather to the first curved portion of the outer edge of the aggregate, and the third welding mechanism is used to weld the leather to the second curved portion of the outer edge of the aggregate. The movable platform is movably connected to the frame. This design allows the platform, which holds the workpiece, to move flexibly beneath the frame. The mold cavity provides a stable placement for the workpiece. The stopper assembly surrounds the cavity, forcing the workpiece into it. This function ensures the workpiece is correctly positioned within the cavity and remains stable during the welding process. For complex-shaped automotive A-pillar workpieces, the stopper assembly prevents misalignment of the leather and aggregate during welding, especially when welding curved sections, ensuring weld accuracy.

[0007] Furthermore, in the present application, a type of automobile A-pillar welding equipment, the limiting assembly includes a set of first pressing assemblies, which are arranged on a movable platform and include a first cylinder and a first carrier. The first carrier is mounted on the movable platform, and the first cylinder is mounted on the first carrier. The output end of the first cylinder is connected to a first pressing block, and the end of the first pressing block matches the shape of the inner wall of the aggregate. After the workpiece is placed in the cavity, the first pressing block can fit tightly against the inner wall of the aggregate, thereby effectively positioning the aggregate. This shape-matching design can prevent the aggregate from translating or rotating inside the cavity during the welding process.

[0008] Furthermore, in the present application, a type of automobile A-pillar welding equipment, the limiting assembly also includes a set of second pressing assemblies. The second pressing assembly is arranged on a movable platform and includes a second cylinder and a first vertical frame. The second cylinder is mounted on the movable platform, and a connecting block is provided at the output end. The first vertical frame is provided with a slide rail along the axial direction of the second cylinder, and is connected to the connecting block via a slider provided on the slide rail. The connecting block is provided with a second pressing block, and the second pressing block is provided with a welding hole. The second pressing block presses the leather material onto the straight portion of the outer edge of the aggregate. The slide rail provided on the first vertical frame along the axial direction of the second cylinder cooperates with the slider on the connecting block. This slide rail-slider connection method enables the connecting block (and the second pressing block connected thereto) to move stably in a specific direction under the drive of the second cylinder, thereby ensuring the linearity and accuracy of the pressing action. The second pressing block is provided with a welding hole, and its main function is to press the leather material onto the straight portion of the outer edge of the aggregate. During operation, the second pressing block, pushed by the second cylinder, applies pressure to the leather material, making it fit tightly to the straight part of the aggregate. At the same time, the welding hole provides convenience for subsequent welding operations, making the welding position more accurate and stable.

[0009] Furthermore, in the automotive A-pillar welding equipment disclosed herein, the limiting assembly further includes a third cylinder and a mounting base. A third pressure block is provided at the output end of the third cylinder, and the third pressure block is provided with a welding hole. The third pressure block presses the leather material against the first and second curved portions of the outer edge of the aggregate. The mounting base is provided with a slide rail along the axial direction of the third cylinder, and is connected to the third pressure block via a slider provided on the slide rail. During operation, the third cylinder pushes the third pressure block, causing it to fit tightly against the curved portion of the aggregate. Its shape and pressure securely fit the leather material and aggregate at the curved portion, and the welding hole provides accurate positional guidance for the welding operation, facilitating subsequent welding.

[0010] Furthermore, an automobile A-pillar welding device in the present application also includes a lifting mechanism. The lifting mechanism is arranged at the upper end of the frame, and includes a set of telescopic rods, a linear drive mechanism, and a hanger plate. The linear drive mechanism is installed at the upper end of the frame, and its output end is connected to the upper side of the hanger plate. One end of the telescopic rod is installed at the upper end of the frame, and the other end is connected to the upper side of the hanger plate. During operation, when the linear drive mechanism is started, the output end pushes or pulls the hanger plate up and down according to the set program or instructions. At the same time, the telescopic rod will extend and retract as the hanger plate rises and falls, and work in conjunction with the linear drive mechanism to maintain the balance and stability of the hanger plate. This design enables the hanger plate to achieve stable and precise position adjustment in the vertical direction.

[0011] Furthermore, in the present application, a kind of automobile A-pillar welding equipment, the first welding mechanism includes a set of fourth cylinders, a set of first mounting brackets, and a set of first ultrasonic welding guns. The first mounting bracket is installed on the lower side of the hanging plate, and the fourth cylinder is installed on the first mounting bracket. The first mounting bracket is provided with a slide rail along the axial direction of the fourth cylinder, and is connected to the first ultrasonic welding gun via a slider provided on the slide rail. The welding end of the first ultrasonic welding gun is provided with a first welding gun head, and the first welding gun head is provided with a convex portion, and the convex portion corresponds to the welding hole on the second pressure block. The first ultrasonic welding gun can be stably moved along the slide rail under the drive of the fourth cylinder. The welding end of the first ultrasonic welding gun is provided with a first welding gun head, and the first welding gun head has a convex portion, and the convex portion corresponds to the welding hole on the second pressure block. This design provides a precise positioning structure for the welding operation.

[0012] Furthermore, in the present application, a vehicle A-pillar welding device, the second welding mechanism includes a first connecting rod, a fifth cylinder, and a second ultrasonic welding gun. The upper end of the first connecting rod is mounted on the lower side of the hanging plate, and the lower end is rotatably connected to the first mounting plate. The fifth cylinder is mounted on the first mounting plate, and the output end of the fifth cylinder is connected to the second mounting plate. The second ultrasonic welding gun is mounted on the second mounting plate, and the second mounting plate is provided with a slide rail, which is connected to the first mounting plate via a slider provided on the slide rail. The end of the second ultrasonic welding gun is provided with a second welding gun head, and the second welding gun head is provided with a protrusion, which corresponds to the welding hole on the third pressure block. The first connecting rod serves as a connecting component, and its upper end is mounted on the lower side of the hanging plate, providing a connection point for the entire mechanism to the upper structure. The lower end is rotatably connected to the first mounting plate. This rotatable connection method gives the second welding mechanism a certain degree of flexibility, enabling it to adapt to the changing welding angle requirements of the first curved portion along the outer edge of the aggregate.

[0013] Furthermore, the present application discloses an automotive A-pillar welding device. The third welding mechanism comprises a second connecting rod, a sixth cylinder, and a third ultrasonic welding gun. The second connecting rod's upper end is mounted on the underside of a hanging plate, and its lower end is rotatably connected to a third mounting plate. The sixth cylinder is mounted on the third mounting plate, and its output end is connected to a fourth mounting plate. The third ultrasonic welding gun is mounted on the fourth mounting plate, which is provided with a slide rail and connected to the third mounting plate via a slider mounted on the slide rail. The third ultrasonic welding gun has a third welding gun head at its end, which has a protrusion that corresponds to a welding hole on a third pressure block. The design of the third welding mechanism optimizes the welding process for the second curved section of the automotive A-pillar. The operator no longer needs to manually adjust the welding angle and position; the device's inherent structural features automatically adapt to the welding requirements of the curved section, improving welding efficiency.

[0014] It can be seen from the above technical solution that the utility model has the following beneficial effects:

[0015] The automotive A-pillar welding equipment described in this utility model improves welding efficiency through a specially designed limit assembly and multiple flexibly adjustable welding mechanisms. The limit assembly accurately positions the workpiece, preventing misalignment of the leather and aggregate during welding, ensuring welding accuracy and avoiding inaccurate welding positions and frequent adjustments caused by manual operation. The multiple welding mechanisms automatically adapt to the welding needs of different parts, eliminating the need for frequent replacement of welding gun tips or moving the workpiece to a fixed welding gun position as required by traditional methods. This saves time and improves overall welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an automobile A-pillar welding device of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of an automobile A-pillar welding device of the utility model;

[0018] Figure 3 for Figure 2 A magnified schematic diagram of area A in the middle;

[0019] Figure 4 This is a schematic diagram of the limit assembly mechanism in an automobile A-pillar welding device of the present utility model;

[0020] Figure 5 This is a schematic diagram of the medium-sized cavity structure of an automobile A-pillar welding equipment of the utility model;

[0021] Figure 6 Schematic diagram of leather and aggregate structure.

[0022] Description of the accompanying drawings: 1-frame, 2-moving platform, 3-cavity, 4-limiting assembly, 41-first pressing assembly, 411-first cylinder, 412-first carrier, 413-first pressing block, 42-second pressing assembly, 421-second cylinder, 422-first vertical frame, 423-connecting block, 424-second pressing block, 43-third cylinder, 44-mounting seat, 45-third pressing block, 5-first welding mechanism, 51-fourth cylinder, 52-first mounting frame, 53-first ultrasonic welding gun, 531-first welding gun head, 6-second welding Connecting mechanism, 61-first connecting rod, 62-fifth cylinder, 63-second ultrasonic welding gun, 631-second welding gun head, 64-first mounting plate, 65-second mounting plate, 7-third welding mechanism, 71-second connecting rod, 72-sixth cylinder, 73-third ultrasonic welding gun, 731-third welding gun head, 74-third mounting plate, 75-fourth mounting plate, 8-lifting mechanism, 81-telescopic rod, 82-linear drive mechanism, 83-hanging plate, 9-leather, 10-aggregate, 11-straight part, 12-first bending part, 13-second bending part. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1

[0025] like Figure 1 、 5 , 6 is an automobile A-pillar welding equipment, comprising a frame 1, a movable platform 2; the movable platform 2 is arranged below the frame 1 and is movably connected to the frame 1; a pair of cavities 3, the cavity 3 is arranged on the movable platform 2, for placing a workpiece, the workpiece comprising leather 9 and aggregate 10, the leather wrapped around the aggregate 10; a limiting component 4, the limiting component 4 is arranged around the cavity 3, for pressing the workpiece into the cavity 3; a pair of first welding mechanisms 5, a pair of second welding mechanisms 6, and a pair of third welding mechanisms 7, the first welding mechanism 5, the second welding mechanism 6, and the third welding mechanism 7 are arranged in sequence above the frame 1, the first welding mechanism 5 is used to weld the leather 9 to the straight portion 11 along the outer edge of the aggregate 10, the second welding mechanism 6 is used to weld the leather 9 to the first curved portion 12 along the outer edge of the aggregate 10, and the third welding mechanism 7 is used to weld the leather 9 to the second curved portion 13 along the outer edge of the aggregate 10. The movable platform 2 is movably connected to the frame 1. This design enables the movable platform 2 on which the workpiece is placed to be flexibly moved under the frame 1. The cavity 3 provides a stable placement space for the workpiece. The limiting assembly 4 surrounds the cavity 3 and can press the workpiece into the cavity 3. This function can ensure that the workpiece is in the correct position in the cavity 3 and remains stable during the welding process. For automobile A-pillar workpieces with complex shapes, the limiting assembly 4 can prevent the leather material 9 and the aggregate 10 from being misaligned during welding, especially when welding the curved parts, to ensure the accuracy of the welding. A slide rail and a cylinder are provided under the frame 1. Driven by the cylinder, the movable platform moves on the side of the frame 1 through a slider provided on the slide rail.

[0026] In this embodiment, Figure 2 、 4 As shown, the limiting assembly 4 includes a group of first pressing assemblies 41, which are arranged on the movable platform 2 and include a first cylinder 411 and a first carrier 412. The first carrier 412 is installed on the movable platform 2, and the first cylinder 411 is installed on the first carrier 412. The output end of the first cylinder 411 is connected to a first pressing block 413, and the end of the first pressing block 413 matches the shape of the inner wall of the aggregate 10. After the workpiece is placed in the cavity 3, the first pressing block 413 can fit tightly against the inner wall of the aggregate 10, thereby effectively positioning the aggregate 10. This shape-matching design can prevent the aggregate 10 from translating or rotating inside the cavity 3 during the welding process. A group of first pressing assemblies 41 is 3.

[0027] In this embodiment, Figure 2 、 4 As shown, the limiting assembly 4 also includes a second pressing assembly 42, which is mounted on the movable platform 2 and includes a second cylinder 421 and a first vertical frame 422. The second cylinder 421 is mounted on the movable platform 2, with a connecting block 423 provided at its output end. The first vertical frame 422 is provided with a slide rail along the axial direction of the second cylinder 421, which is connected to the connecting block 423 via a slider provided on the slide rail. The connecting block 423 is provided with a second pressing block 424, which has a welding hole. The second pressing block 424 presses the leather material 9 onto the outer straight portion of the aggregate 10. The slide rail provided on the first vertical frame 422 along the axial direction of the second cylinder 421 cooperates with the slider on the connecting block 423. This slide rail-slider connection allows the connecting block 423 (and the second pressing block 424 connected thereto) to move stably in a specific direction under the drive of the second cylinder 421, ensuring the linearity and accuracy of the pressing action. The second pressing block 424 is provided with a welding hole, whose main function is to press the leather material 9 onto the straight portion of the outer edge of the aggregate 10. During operation, the second pressing block 424, driven by the second cylinder 421, applies pressure to the leather material 9, making it fit tightly onto the straight portion of the aggregate 10. At the same time, the welding hole facilitates subsequent welding operations, making the welding position more accurate and stable. A set of second pressing components 42 is 4

[0028] In this embodiment, Figure 4 As shown, the limiting assembly 4 also includes a third cylinder 43 and a mounting base 44. The output end of the third cylinder 43 is provided with a third pressing block 45, which is provided with a welding hole. The third pressing block 45 presses the leather material 9 onto the first and second curved portions of the outer edge of the aggregate 10. The mounting base 44 is provided with a slide rail along the axial direction of the third cylinder 43 and is connected to the third pressing block 45 via a slider provided on the slide rail. During operation, the third cylinder 43 pushes the third pressing block 45 to make it fit tightly against the curved portion of the aggregate 10. Its shape and pressure firmly fit the leather material 9 and the aggregate 10 at the curved portion. The welding hole provides accurate position guidance for the welding operation, facilitating subsequent welding.

[0029] In this embodiment, Figure 2As shown, the device also includes a lifting mechanism 8, which is located at the upper end of the frame 1 and comprises a set of telescopic rods 81, a linear drive mechanism 82, and a hanging plate 83. The linear drive mechanism 82 is mounted on the upper end of the frame 1, with its output end connected to the upper side of the hanging plate 83. One end of the telescopic rod 81 is mounted on the upper end of the frame 1, and the other end is connected to the upper side of the hanging plate 83. During operation, when the linear drive mechanism 82 is activated, the output end pushes or pulls the hanging plate 83 up and down according to a set program or instruction. Simultaneously, the telescopic rod 81 expands and contracts as the hanging plate 83 rises and falls, working in conjunction with the linear drive mechanism 82 to maintain the balance and stability of the hanging plate 83. This design enables stable and precise vertical position adjustment of the hanging plate 83. The lifting mechanism 8 comprises five lifting mechanisms, four telescopic rods 81, and the linear drive mechanism 82 is a servo electric cylinder.

[0030] In this embodiment, Figure 2 、 3 As shown, the first welding mechanism 5 includes a set of fourth cylinders 51, a set of first mounting brackets 52, and a set of first ultrasonic welding guns 53. The first mounting brackets 52 are mounted on the underside of the hanging plate 83. The fourth cylinder 51 is mounted on the first mounting brackets 52. The first mounting brackets 52 are provided with a slide rail along the axial direction of the fourth cylinder 51 and are connected to the first ultrasonic welding gun 53 via a slider provided on the slide rail. The welding end of the first ultrasonic welding gun 53 is provided with a first welding gun head 531, which has a protrusion that corresponds to the welding hole in the second pressure block 424. Driven by the fourth cylinder 51, the first ultrasonic welding gun 53 can move stably along the slide rail. The welding end of the first ultrasonic welding gun 53 is provided with a first welding gun head 531, which has a protrusion that corresponds to the welding hole in the second pressure block 424. This design provides a precise positioning structure for the welding operation. There are four fourth cylinders 51 and four first mounting brackets 52 in each set.

[0031] In this embodiment, Figure 2 、 3As shown, the second welding mechanism 6 includes a first connecting rod 61, a fifth cylinder 62, and a second ultrasonic welding gun 63. The upper end of the first connecting rod 61 is mounted on the lower side of the hanging plate 83, and the lower end is rotatably connected to the first mounting plate 64. The fifth cylinder 62 is mounted on the first mounting plate 64, and the output end of the fifth cylinder 62 is connected to the second mounting plate 65. The second ultrasonic welding gun 63 is mounted on the second mounting plate 65. The second mounting plate 65 is provided with a slide rail and is connected to the first mounting plate 64 through a slider provided on the slide rail. The end of the second ultrasonic welding gun 63 is provided with a second welding gun head 631, and the second welding gun head 631 is provided with a protrusion, which corresponds to the welding hole on the third pressing block 45. The first connecting rod 61 is a connecting component, and its upper end is mounted on the lower side of the hanging plate 83, providing a connection point for the entire mechanism to the upper structure, and the lower end is rotatably connected to the first mounting plate 64. This rotatable connection method gives the second welding mechanism 6 a certain flexibility, enabling it to adapt to the welding angle change requirements of the first curved portion along the outer edge of the aggregate 10.

[0032] In this embodiment, Figure 2 、 3 As shown, the third welding mechanism 7 comprises a second connecting rod 71, a sixth air cylinder 72, and a third ultrasonic welding gun 73. The upper end of the second connecting rod 71 is mounted on the underside of the hanging plate 83, and the lower end is rotatably connected to a third mounting plate 74. The sixth air cylinder 72 is mounted on the third mounting plate 74, and the output end of the sixth air cylinder 72 is connected to a fourth mounting plate 75. The third ultrasonic welding gun 73 is mounted on the fourth mounting plate 75. The fourth mounting plate 75 is provided with a slide rail and connected to the third mounting plate 74 via a slider mounted on the slide rail. The end of the third ultrasonic welding gun 73 is provided with a third welding gun head 731, which has a protrusion that corresponds to the welding hole in the third pressure block 45. The design of the third welding mechanism 7 optimizes the welding process of the second curved section of the A-pillar. The operator no longer needs to manually adjust the welding angle and position; the inherent structural features of the equipment automatically adapt to the welding requirements of the curved section, improving welding efficiency.

[0033] Here's how the device works:

[0034] 1. Workpiece placement and positioning

[0035] 1.1 Place the workpiece containing the leather material 9 and the aggregate 10 in the mold cavity 3 on the movable table 2;

[0036] 1.2 The limiting component 4 starts to work, wherein the first cylinder 411 of the first pressing component 41 pushes the first pressing block 413 to make it fit tightly against the inner wall of the aggregate 10, to position the aggregate 10, and to prevent it from translating or rotating inside the cavity 3; the second cylinder 421 of the second pressing component 42 pushes the connecting block 423, and the connecting block 423 drives the second pressing block 424 to move through the slide rail-slider structure, pressing the leather material 9 on the straight portion 11 along the outer edge of the aggregate 10, and at the same time, the welding hole on the second pressing block 424 provides a position reference for subsequent welding; the third cylinder 43 pushes the third pressing block 45, and through the slide rail-slider structure, makes it fit tightly against the first curved portion 12 and the second curved portion 13 along the outer edge of the aggregate 10, and uses its shape and pressure to firmly fit the leather material 9 and the aggregate 10 at the bend, and the welding hole provides accurate position guidance for the welding operation.

[0037] 2. Welding operation

[0038] 2.1 The initial position of the movable platform 2 is the first workstation. The lifting mechanism 8 operates according to a set program or command. The linear drive mechanism 82 pushes the hanging plate 83 downward, which in turn moves the first welding mechanism 5 downward. In the first welding mechanism 5, the fourth cylinder 51 pushes the first ultrasonic welding gun 53 along the slide rail. The first welding gun head 531 at the welding end of the first ultrasonic welding gun 53 aligns with the welding hole in the second pressing block 424 through the protrusion, thereby accurately welding the leather material 9 to the outer straight portion 11 of the aggregate 10.

[0039] 2.2 After the first welding mechanism 5 finishes welding, the fourth cylinder 51 is reset, and the lifting mechanism 8 moves the first welding mechanism 5 up to the initial position.

[0040] 2.3 The movable platform 2 moves to the second workstation along the slide rail under the drive of the cylinder, and the lifting mechanism 8 drives the second welding mechanism 6 to move downward. In the second welding mechanism 6, the upper end of the first connecting rod 61 is connected to the lower side of the hanging plate 83, and the first mounting plate 64 rotatably connected at the lower end drives the second mounting plate 65 to move under the action of the fifth cylinder 62. The slide rail on the second mounting plate 65 is connected to the first mounting plate 64 through a slider, so that the second welding gun head 631 at the end of the second ultrasonic welding gun 63 corresponds to the welding hole on the third pressing block 45 through the convex portion, and the leather material 9 is welded to the first curved portion 12 along the outer edge of the aggregate 10.

[0041] 2.4 After the second welding mechanism 6 finishes welding, the fifth cylinder 62 is reset, and the lifting structure moves the second welding mechanism 6 up to the initial position.

[0042] 2.5 The movable platform 2 moves to the third workstation along the slide rail under the drive of the cylinder, and the lifting mechanism 8 drives the third welding mechanism 7 to move downward. In the third welding mechanism 7, the upper end of the second connecting rod 71 is connected to the lower side of the hanging plate 83, and the third mounting plate 74 rotatably connected at the lower end drives the fourth mounting plate 75 to move under the action of the sixth cylinder 72. The slide rail on the fourth mounting plate 75 is connected to the third mounting plate 74 through a slider, so that the third welding gun head 731 at the end of the third ultrasonic welding gun 73 corresponds to the welding hole on the third pressing block 45 through the convex portion, and the leather material 9 is welded to the second curved portion 13 along the outer edge of the aggregate 10.

[0043] 2.6 After the third welding mechanism 7 finishes welding, the sixth cylinder 72 is reset, and the lifting structure moves the third welding mechanism 7 up to the initial position.

[0044] 3. Reset and remove the workpiece

[0045] 3.1 The movable platform 2 moves to the first working position.

[0046] 3.2 The first pressing assembly 41, the second pressing assembly 42 and the third cylinder 43 are reset, and the welded workpiece is taken out.

[0047] The above embodiments are illustrative and intended to illustrate the technical concepts and features of the present invention so that those skilled in the art can understand the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An automobile A-pillar welding device, characterized by: The invention comprises a frame (1) and a movable platform (2); the movable platform (2) is arranged below the frame (1) and is movably connected to the frame (1); a pair of cavities (3), the cavities (3) are arranged on the movable platform (2) and are used to place workpieces, the workpieces comprising leather and aggregate, the leather covering the aggregate; a limiting component (4), the limiting component (4) is arranged around the cavity (3) and is used to press the workpiece into the cavity (3); a pair of first welding mechanisms (5), a pair of second welding mechanisms (6), and a pair of third welding mechanisms (7), the first welding mechanisms (5), the second welding mechanisms (6), and the third welding mechanisms (7) are arranged above the frame (1) in sequence, the first welding mechanism (5) is used to weld the leather to the straight portion of the outer edge of the aggregate, the second welding mechanism (6) is used to weld the leather to the first curved portion of the outer edge of the aggregate, and the third welding mechanism (7) is used to weld the leather to the second curved portion of the outer edge of the aggregate.

2. The automobile A-pillar welding equipment according to claim 1, characterized in that: The limiting assembly (4) includes a group of first pressing assemblies (41), the first pressing assembly (41) is arranged on the movable platform (2), and includes a first cylinder (411) and a first carrier (412), the first carrier (412) is installed on the movable platform (2), the first cylinder (411) is installed on the first carrier (412), the output end of the first cylinder (411) is connected to a first pressing block (413), and the end of the first pressing block (413) matches the shape of the inner wall of the aggregate.

3. The automobile A-pillar welding equipment according to claim 2, characterized in that: The limiting assembly (4) also includes a group of second pressing assemblies (42), which are arranged on the movable platform (2) and include a second cylinder (421) and a first vertical frame (422). The second cylinder (421) is installed on the movable platform (2), and a connecting block (423) is provided at the output end. The first vertical frame (422) is provided with a slide rail along the axial direction of the second cylinder (421), and is connected to the connecting block (423) through a slider provided on the slide rail. The connecting block (423) is provided with a second pressing block (424), and the second pressing block (424) is provided with a welding hole. The second pressing block (424) presses the leather material onto the straight portion outside the aggregate.

4. The automobile A-pillar welding equipment according to claim 3, characterized in that: The limiting assembly (4) further includes a third cylinder (43) and a mounting seat (44). The output end of the third cylinder (43) is provided with a third pressing block (45). The third pressing block (45) is provided with a welding hole. The third pressing block (45) presses the leather material onto the first curved portion and the second curved portion of the outer edge of the aggregate. The mounting seat (44) is provided with a slide rail along the axial direction of the third cylinder (43) and is connected to the third pressing block (45) via a slider provided on the slide rail.

5. The automobile A-pillar welding equipment according to claim 4, characterized in that: The utility model further comprises a lifting mechanism (8), wherein the lifting mechanism (8) is arranged at the upper end of the frame (1), and comprises a telescopic rod (81), a linear drive mechanism (82), and a hanging plate (83). The linear drive mechanism (82) is installed at the upper end of the frame (1), and its output end is connected to the upper side of the hanging plate (83). One end of the telescopic rod (81) is installed at the upper end of the frame (1), and the other end is connected to the upper side of the hanging plate (83).

6. The automobile A-pillar welding equipment according to claim 5, characterized in that: The first welding mechanism (5) includes a group of fourth cylinders (51), a group of first mounting frames (52), and a group of first ultrasonic welding guns (53). The first mounting frames (52) are mounted on the lower side of the hanging plate (83). The fourth cylinder (51) is mounted on the first mounting frames (52). The first mounting frames (52) are provided with a slide rail along the axial direction of the fourth cylinder (51) and are connected to the first ultrasonic welding gun (53) via a slider provided on the slide rail. The welding end of the first ultrasonic welding gun (53) is provided with a first welding gun head (531). The first welding gun head (531) is provided with a convex portion, and the convex portion corresponds to the welding hole on the second pressing block (423).

7. The automobile A-pillar welding equipment according to claim 6, characterized in that: The second welding mechanism (6) includes a first connecting rod (61), a fifth cylinder (62), and a second ultrasonic welding gun (63). The upper end of the first connecting rod (61) is mounted on the lower side of the hanging plate (83), and the lower end is rotatably connected to the first mounting plate (64). The fifth cylinder (62) is mounted on the first mounting plate (64). The output end of the fifth cylinder (62) is connected to the second mounting plate (65). The second ultrasonic welding gun (63) is mounted on the second mounting plate (65). The second mounting plate (65) is provided with a slide rail and is connected to the first mounting plate (64) via a slider provided on the slide rail. The end of the second ultrasonic welding gun (63) is provided with a second welding gun head (631). The second welding gun head (631) is provided with a convex portion, and the convex portion corresponds to the welding hole on the third pressing block (45).

8. The automobile A-pillar welding equipment according to claim 7, characterized in that: The third welding mechanism (7) includes a second connecting rod (71), a sixth cylinder (72), and a third ultrasonic welding gun (73). The upper end of the second connecting rod (71) is mounted on the lower side of the hanging plate (83), and the lower end is rotatably connected to the third mounting plate (74). The sixth cylinder (72) is mounted on the third mounting plate (74). The output end of the sixth cylinder (72) is connected to the fourth mounting plate (75). The third ultrasonic welding gun (73) is mounted on the fourth mounting plate (75). The fourth mounting plate (75) is provided with a slide rail and is connected to the third mounting plate (74) via a slider provided on the slide rail. The end of the third ultrasonic welding gun (73) is provided with a third welding gun head (731). The third welding gun head (731) is provided with a convex portion, and the convex portion corresponds to the welding hole on the third pressing block (45).

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