Automobile B column welding equipment

Abstract

The utility model relates to an automobile B column welding device. Comprising a frame body and a movable table movably connected to the lower portion of the frame body. The movable table is provided with a carrying seat for placing workpieces, a first limiting assembly is arranged in a middle penetrating hole of the carrying seat, and the movable table is provided with a second limiting assembly and a pressing mechanism. A pair of first welding mechanisms and a pair of second welding mechanisms are arranged above the frame body, the first welding mechanisms are used for welding leather on the edge of an aggregate opening, and the second welding mechanisms are used for welding side edges. The lifting mechanism is arranged at the upper end of the frame body. The equipment can effectively complete welding of the automobile B column, and the welding quality and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to a B-pillar welding device for an automobile. Background Art

[0002] The B-pillar, a key support component within a vehicle's interior, is increasingly crucial for aesthetics and quality. The center of the B-pillar requires a perforation to accommodate the seatbelt assembly. During the B-pillar manufacturing process, the leather must be tightly wrapped around the outer frame and welded to the edge. However, welding in the perforated area is significantly more challenging than welding at the outer edge of the frame.

[0003] The traditional processing method is for workers to hold the workpiece to be welded and then move it to a fixed position ultrasonic welding gun to carry out welding work. During the operation, workers must manually adjust the position of the workpiece to be welded according to the shape of the edge to be welded, and complete the welding one by one. For the outer edge area of ​​the aggregate, although this method is not very efficient, it can still complete the welding task; but when it comes to welding the edge of the perforated area in the middle of the B-pillar aggregate, this method becomes difficult, and it is necessary to manually adjust the angle of the aggregate multiple times to align the welding gun. In this way, not only does the efficiency of the entire welding work become extremely low, but it also seriously undermines the consistency of the welding, resulting in uneven welding quality and many problems.

[0004] Therefore, the above problems need to be solved urgently. Utility Model Content

[0005] Purpose of the utility model: In order to overcome the above shortcomings, the purpose of this utility model is to provide an automobile B-pillar welding device, which has a reasonable design and completes the high-efficiency welding of the edge of the perforated area in the middle of the automobile B-pillar through the precise cooperation of the first welding mechanism and the first pressing component.

[0006] Technical solution: The utility model provides a kind of automobile B column welding equipment, including frame body, mobile station;The mobile station is located below frame body and is made movable connection with frame body;A pair of material loading seat, the material loading seat is installed on mobile station by being equipped with a group of stand on mobile station, material loading seat is used to place workpiece, the workpiece includes skin material and aggregate, the skin material is wrapped outside aggregate, the workpiece middle part is equipped with opening, and material loading seat middle part is equipped with the perforation corresponding with the size of the opening;First limiting component, the first limiting component ring is equipped in the perforation, for the position of opening on workpiece is limited at the edge of perforation;Second limiting component, the second limiting component is equipped on mobile station, for pressing and limiting workpiece on the side of material loading seat;Pressing mechanism, the pressing mechanism is equipped on mobile station, for workpiece is pressed in material loading seat, a pair of first welding mechanism, a pair of second welding mechanism, the first welding mechanism is used to connect and weld skin material at the edge of aggregate opening, and the second welding mechanism is used to connect and weld skin material at the edge of aggregate side.This makes that material loading seat and the workpiece placed thereon can be flexibly adjusted within a certain range, facilitating subsequent different welding operation and adapting to different welding requirements, material loading seat middle part is equipped with the perforation corresponding with the size of workpiece middle part opening, and first limiting component ring is equipped in the perforation, and its function is that the position of opening on workpiece is accurately limited at the edge of perforation, to ensure that skin material and aggregate at the edge of opening can be accurately aligned during welding, to facilitate the accuracy of subsequent welding operation, second limiting component is equipped on mobile station, and workpiece can be pressed and limited on the side of material loading seat, to further fix the position of workpiece from side, to prevent lateral displacement of workpiece during welding, to ensure the accuracy of welding position.

[0007] Further, the first limiting component of the automobile B column welding equipment in the application includes a group of first cylinders, a group of first sliding rails and a group of first pressing blocks, the first cylinders and the first sliding rails are installed on the mobile station, the output end of the first cylinder is connected with the first pressing block, the first pressing block is connected with the first sliding rail through the sliding block installed on the first sliding rail, the end of the first pressing block is provided with a welding hole, and the welding hole is arranged above the edge of the workpiece opening. The end of the first pressing block is provided with a welding hole, and the welding hole is arranged above the edge of the workpiece opening. This design not only can accurately position and limit the edge of the workpiece opening through the pressing block to prevent it from shifting during welding, but also can provide a relatively accurate and stable operation entrance during welding operation, so that the welding tool can directly weld the edge of the workpiece opening through the welding hole, further improving the accuracy and convenience of welding.

[0008] Furthermore, in the present application, a type of automobile B-pillar welding equipment, the second limiting assembly includes a set of second cylinders and a set of mounting bases, the mounting bases are arranged on a movable platform, the second cylinders are arranged on the mounting bases, the output end of the second cylinders is provided with a second mortgage block, the second mortgage block is provided with a welding hole, the second mortgage block presses the workpiece into the loading base from the side, the welding hole is provided above the side edge of the workpiece, the mounting base is provided with a slide rail along the axial direction of the second cylinder, and is connected to the second mortgage block via a slider provided on the slide rail. The second pressing block is provided with a welding hole, and the welding hole is provided above the side edge of the workpiece. This design not only plays a role in side pressure limiting, but also provides convenience for welding operations.

[0009] Furthermore, in the present application, a B-pillar welding device for automobiles, the clamping mechanism includes a support base, a first bracket, a second bracket, a first connecting rod, and a third cylinder. The support base is arranged on a movable platform, the first bracket and the second bracket are mounted on the support base, the first bracket and the third cylinder are pivotally connected, the piston rod end of the third cylinder is rotatably connected to the first connecting rod, the end of the first connecting rod close to the third cylinder is pivotally connected to the second bracket, and the other end is provided with a first pressure block. When the third cylinder is in an extended state, its piston rod drives the first connecting rod to rotate and drives the first pressure block to press the workpiece into the loading base. The clamping mechanism realizes the clamping function of the workpiece through a clever mechanical structure design. The support base serves as the basic support component, carrying the first bracket and the second bracket. The first bracket is pivotally connected to the third cylinder, the piston rod end of the third cylinder is rotatably connected to the first connecting rod, and the end of the first connecting rod close to the third cylinder is pivotally connected to the second bracket, forming an interconnected linkage structure. When the third cylinder is in operation, the piston rod is extended and retracted to drive the first connecting rod to rotate around the pivot point with the second bracket, thereby driving the first pressing block to tighten or loosen the workpiece.

[0010] Furthermore, the automotive B-pillar welding equipment in this application also includes a lifting mechanism, which is arranged at the upper end of a frame and includes a set of telescopic rods, a linear drive mechanism, and a hanging plate. The linear drive mechanism is mounted at the upper end of the frame, and its output end is connected to the upper side of the hanging plate. One end of the telescopic rod is mounted at the upper end of the frame, and the other end is connected to the upper side of the hanging plate. Through the drive of the linear drive mechanism and the cooperation of the telescopic rod, the height of the hanging plate can be adjusted in the vertical direction, thereby changing the height position of the components or equipment connected below the entire lifting mechanism.

[0011] Furthermore, in the present application, a vehicle B-pillar welding device, the first welding mechanism includes a fourth cylinder, a first mounting bracket, and a first ultrasonic welding gun. The first mounting bracket is mounted on the underside of a hanging plate, the fourth cylinder is mounted on the first mounting bracket, the first mounting bracket is provided with a slide rail along the axis of the fourth cylinder, and is connected to the first ultrasonic welding gun via a slider provided on the slide rail. The first ultrasonic welding gun has a first welding gun head at its welding end, and the first welding gun head has a protrusion. The protrusion extends into the welding opening to perform the welding operation.

[0012] Furthermore, in the automotive B-pillar welding equipment disclosed herein, the second welding mechanism includes a pair of connecting rods, a pair of fifth cylinders, and a pair of second ultrasonic welding guns. The upper ends of the connecting rods are mounted on the underside of the hanger plate, and the lower ends are 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 and connected to the first mounting plate via a slider mounted on the slide rail. The end of the second ultrasonic welding gun is provided with a second welding gun head, which has a protrusion. The upper end of the connecting rods is mounted on the underside of the hanger plate, and the lower end is rotatably connected to the first mounting plate. This structure allows the first mounting plate (and thus the components mounted thereon) to rotate within a certain angle range relative to the hanger plate. By varying the rotation angle between the connecting rods and the first mounting plate, the welding requirements for the side edges of automotive B-pillar workpieces of different shapes and inclination angles can be met.

[0013] Furthermore, in the automotive B-pillar welding equipment disclosed herein, a second slide rail and a first linear drive mechanism are mounted below the frame. The movable platform is slidably connected to the second slide rail via a slider, and the first linear drive mechanism drives the movable platform. This combination of the slide rail and the slider provides stable and precise guidance for the movable platform.

[0014] Furthermore, in the automotive B-pillar welding equipment of the present application, the first pressing block is made of polyurethane. Polyurethane has excellent flexibility and elasticity. When the third cylinder drives the first connecting rod to drive the first pressing block to press the workpiece into the loading base, the polyurethane first pressing block can appropriately deform according to the shape and undulations of the workpiece surface, thereby better conforming to the workpiece surface and achieving a more uniform and tight pressing effect, ensuring that all parts of the workpiece are firmly fixed during the welding process.

[0015] It can be seen from the above technical solution that the utility model has the following beneficial effects:

[0016] The automobile B-pillar welding equipment described in the present invention realizes high-quality and high-efficiency welding of automobile B-pillars through a unique structural design. With the cooperation of the frame and the movable platform, it provides a stable operating platform for the entire welding process. The loading seat is used to place the workpiece, and the opening position of the workpiece is accurately determined by the first limiting component. The second limiting component assists in the side limiting, and the clamping mechanism ensures that the workpiece is stable and the welding accuracy is guaranteed. The first welding mechanism and the second welding mechanism have clear division of labor, and weld the leather materials at the edge of the aggregate opening and the side edge respectively. In addition, the lifting mechanism further optimizes the flexibility of welding. The various components work together, and all aspects of limiting, clamping and welding have been carefully designed, which effectively improves the quality and efficiency of automobile B-pillar welding and meets the strict requirements for B-pillar welding in automobile production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of an automobile B-pillar welding device of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of an automobile B-pillar welding device of the present utility model;

[0019] Figure 3 for Figure 2 A magnified schematic diagram of area A in the middle;

[0020] Figure 4 for Figure 2 A magnified schematic diagram of area B in the middle;

[0021] Figure 5 for Figure 2 Enlarged schematic diagram of area C in the middle;

[0022] Figure 6 This is a schematic diagram of the first welding mechanism in an automobile B-pillar welding device of the present utility model;

[0023] Figure 7 This is a schematic diagram of the second welding mechanism in an automobile B-pillar welding device of the present utility model;

[0024] Figure 8 It is a schematic diagram of the structure of leather material, aggregate and loading seat.

[0025] The description of the drawings is as follows: 1 is a frame body, 11 is a second sliding rail, 12 is a second linear driving mechanism, 2 is a moving table, 3 is a material loading seat, 31 is a perforation, 4 is a first limiting assembly, 41 is a first cylinder, 42 is a first sliding rail, 43 is a first pressing block, 431 is a first welding hole, 44 is a sliding block, 5 is a second limiting assembly, 51 is a second cylinder, 52 is a mounting seat, 53 is a second pressing block, 531 is a second welding hole, 6 is a pressing mechanism, 61 is a support seat, 62 is a first support, 63 is a second support, 64 is a first connecting rod, 65 is a third cylinder, 66 is a first pressing block, 7 is a first welding mechanism, 71 is a fourth cylinder, 72 is a first mounting frame, 73 is a first ultrasonic welding gun, 731 is a first welding head, 8 is a second welding mechanism, 81 is a connecting rod, 82 is a fifth cylinder, 83 is a second ultrasonic welding gun, 831 is a second welding head, 84 is a first mounting plate, 85 is a second mounting plate, 9 is a lifting mechanism, 91 is a telescopic rod, 92 is a linear driving mechanism, 93 is a hanging plate, 101 is a leather, 102 is an aggregate, 103 is a rectangular welding part, 104 is a side straight line welding part, 105 is a first side bending welding part, and 106 is a second side bending welding part. DETAILED DESCRIPTION

[0026] The utility model will be further illustrated below in combination with the drawings and specific embodiments.

[0027] The embodiments of the utility model will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.

[0028] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more, unless expressly limited otherwise.

[0030] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0031] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0032] Example 1

[0033] like Figure 1 、 8The automobile B-pillar welding equipment shown in the figure includes 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 loading seats 3, the loading seats 3 are installed on the movable platform 2 through 8 columns 21 provided on the movable platform 2, and the loading seats 3 are used to place workpieces, the workpieces include leather 101 and aggregate 102, the leather 101 is wrapped around the aggregate 102, the middle of the workpiece is provided with an opening in a rectangular shape, and the middle of the loading seat 3 is provided with a through hole 31 of the same size and shape as the opening; a first limiting component 4, the first limiting component 4 The ring is arranged in the through-hole 31, and is used to limit the position of the opening on the workpiece at the edge of the through-hole 31; the second limiting component 5, the second limiting component 5 is arranged on the movable platform 2, and is used to press and limit the workpiece on the side of the loading seat 3; the clamping mechanism 6, the clamping mechanism 6 is arranged on the movable platform 2, and is used to press the workpiece in the loading seat 3, a pair of first welding mechanisms 7, and a pair of second welding mechanisms 8, the first welding mechanism 7 is used to weld the leather material 101 to the opening edge of the aggregate 102, and the second welding mechanism 8 is used to weld the leather material 101 to the side edge of the aggregate 102. The movable platform 2 is arranged under the frame 1 and is movably connected to the frame 1, which enables the loading seat 3 and the workpiece placed thereon to be flexibly adjusted in a certain range, which is convenient for the subsequent operation of different welding processes and adapts to different welding requirements. A through-hole 31 with the same size and shape as the opening in the middle of the workpiece is provided in the middle of the loading seat 3, and the first limiting component 4 is arranged in the through-hole 31. Its function is to accurately limit the position of the opening on the workpiece at the edge of the through-hole 31, ensuring that the leather material 101 and the aggregate 102 at the edge of the opening can be accurately aligned during the welding process, which is beneficial to the accuracy of subsequent welding operations. The second limiting component 5 is arranged on the movable platform 2, which can press and limit the workpiece on the side of the loading seat 3, further fix the position of the workpiece from the side, prevent the workpiece from lateral displacement during welding, and ensure the accuracy of the welding position.

[0034] In this embodiment, Figure 2 、 3 As shown in Figure 8, the first limiting assembly 4 includes 6 first cylinders 41, 6 first slide rails 42, and 6 first pressure blocks 43. The first cylinders 41, the first slide rails 42, and the first pressure blocks 43 correspond to each other one by one. The first cylinders 41 and the first slide rails 42 are installed on the movable platform 2. The output end of the first cylinder 41 is connected to the first pressure block 43. The first pressure block 43 is slidably connected to the first slide rail 42 through a slider 44 installed on the first slide rail 42. The end of the first pressure block 43 is provided with a first welding hole 431. The first welding hole 431 is provided above the edge of the workpiece opening, that is, Figure 8The rectangular welding portion 103 in FIG. A welding hole 431 is provided at the end of the first pressing block 43, and the welding hole 431 is located above the edge of the workpiece opening. This design not only allows the pressing block 43 to accurately position and limit the edge of the workpiece opening, preventing it from shifting during the welding process, but also provides a relatively accurate and stable operating entrance during the welding operation, allowing the welding tool to directly weld the edge of the workpiece opening through the first welding hole 431, further improving the accuracy and convenience of welding.

[0035] In this embodiment, Figure 2 、 5 As shown in Figure 8, the second limiting assembly 5 includes three second cylinders 51 and three mounting seats 52. The mounting seats 52 are arranged on the movable platform 2. The second cylinder 51 is arranged on the mounting seat 52. The output end of the second cylinder 51 is provided with a second mortgage block 53. The second mortgage block 53 is provided with a second welding hole 531. The second mortgage block 53 presses the workpiece into the loading seat 3 from the side. The second welding hole 531 is provided above the side edge of the workpiece. The side edge of the workpiece is divided into a side straight welding portion 104, a first side bend welding portion 105, and a second side bend welding portion 106. A slide rail is provided on the mounting seat 52 along the axial direction of the second cylinder 51, and is connected to the second mortgage block 53 through a slider provided on the slide rail. The second pressing block 53 is provided with a second welding hole 531, and the second welding hole 531 is provided above the side edge of the workpiece. This design not only plays a role in side pressure limiting, but also provides convenience for welding operations.

[0036] In this embodiment, Figure 2 、 4As shown, the clamping mechanism 6 includes a support base 61, a first bracket 62, a second bracket 63, a first connecting rod 64, and a third cylinder 65. The support base 61 is provided on the movable platform 2, and the first bracket 62 and the second bracket 63 are mounted on the support base 61. The first bracket 62 and the third cylinder 65 are pivotally connected. The piston rod end of the third cylinder 65 is rotatably connected to the first connecting rod 64. The end of the first connecting rod 64 closest to the third cylinder 65 is pivotally connected to the second bracket 63, and the other end is provided with a first pressing block 66. When the third cylinder 65 is in the extended state, its piston rod drives the first connecting rod 64 to rotate and drives the first pressing block 66 to press the workpiece into the loading base 3. The clamping mechanism 6 achieves its workpiece clamping function through a clever mechanical structure design. The support base 61 serves as the basic support component, carrying the first bracket 62 and the second bracket 63. The first bracket 62 is pivotally connected to the third cylinder 65. The end of the piston rod of the third cylinder 65 is rotatably connected to the first connecting rod 64. The end of the first connecting rod 64 closest to the third cylinder 65 is pivotally connected to the second bracket 63, forming an interconnected linkage structure. When the third cylinder 65 is actuated, the piston rod expands and contracts, driving the first connecting rod 64 to rotate about its pivot point with the second bracket 63, thereby driving the first pressure block 66 to tighten or loosen the workpiece.

[0037] In this embodiment, Figure 1 As shown, the apparatus further includes four lifting mechanisms 9, which are arranged at the upper end of the frame 1 and include four telescopic rods 91, a linear drive mechanism 92, and a hanging plate 93. The linear drive mechanism 92 is mounted on the upper end of the frame 1, and its output end is connected to the upper side of the hanging plate 93. One end of the telescopic rod 91 is mounted on the upper end of the frame 1, and the other end is connected to the upper side of the hanging plate 93. Through the drive of the linear drive mechanism 92 and the cooperation of the telescopic rod 91, the height of the hanging plate 93 can be adjusted in the vertical direction, thereby changing the height position of the components or equipment connected below the entire lifting mechanism 9.

[0038] In this embodiment, Figure 6 、 8As shown, the first welding mechanism 7 includes five fourth cylinders 71, five first mounting frames 72, and five first ultrasonic welding guns 73. The fourth cylinders 71, the first mounting frames 72, and the first ultrasonic welding guns 73 correspond to each other. The first mounting frame 72 is mounted on the lower side of the hanging plate 93. The fourth cylinder 71 is mounted on the first mounting frame 72. The first mounting frame 72 is provided with a slide rail along the axial direction of the fourth cylinder 71 and is connected to the first ultrasonic welding gun 73 via a slider provided on the slide rail. The welding end of the first ultrasonic welding gun 73 is provided with a first welding gun head 731, which is provided with a protrusion. The first welding gun head 731 has a protrusion that extends into the welding port to perform the welding operation. Among the five first ultrasonic welding guns 73, one is used to weld the side linear welding portion 104, and the remaining four first ultrasonic welding guns are used to weld the rectangular welding portion 103.

[0039] In this embodiment, Figure 7 、 8 The second welding mechanism 8 shown includes a pair of connecting rods 81, a pair of fifth air cylinders 82, and a pair of second ultrasonic welding guns 83. The upper end of the connecting rod 81 is mounted on the underside of the hanging plate 93, and the lower end is rotatably connected to the first mounting plate 84. The fifth air cylinder 82 is mounted on the first mounting plate 84, and the output end of the fifth air cylinder 82 is connected to the second mounting plate 85. The second ultrasonic welding gun 83 is mounted on the second mounting plate 85. The second mounting plate 85 is provided with a slide rail and connected to the first mounting plate 84 via a slider provided on the slide rail. The end of the second ultrasonic welding gun 83 is provided with a second welding gun head 831, which has a protrusion. The upper end of the connecting rod 81 is mounted on the underside of the hanging plate 93, and the lower end is rotatably connected to the first mounting plate 84. This structure allows the first mounting plate 84 (and thus the components mounted thereon) to rotate within a certain angle range relative to the hanging plate 93. By changing the rotation angle between the connecting rod 81 and the first mounting plate 84, the welding requirements of the side edges of automobile B-pillar workpieces with different shapes and different inclination angles can be met. A pair of second ultrasonic welding guns 83 are used to weld the first side bend welding part 105 and the second side bend welding part 106.

[0040] In this embodiment, Figure 1 As shown, a second slide rail 11 and a first linear drive mechanism 12 are mounted below the frame 1. The movable platform 2 is slidably connected to the second slide rail 11 via a slider, and the first linear drive mechanism 12 drives the movable platform 2. This combination of the slide rail 11 and the slider provides stable and precise guidance for the movable platform 2. The first linear drive mechanism 12 is a pneumatic cylinder.

[0041] In this embodiment, the first pressing block 66 is made of polyurethane. Polyurethane has excellent flexibility and elasticity. When the third cylinder 65 drives the first connecting rod 64 to drive the first pressing block 66 to press the workpiece into the carrier 3, the polyurethane first pressing block 66 can deform appropriately according to the shape and undulations of the workpiece surface, thereby better fitting the workpiece surface and achieving a more uniform and tight compression effect, ensuring that all parts of the workpiece are firmly fixed during the welding process.

[0042] Here's how the device works:

[0043] 1.1 Workpiece placement and initial positioning:

[0044] The workpiece with the aggregate 102 covered by the leather 101 and a rectangular opening in the middle is placed on the carrier 3. The through hole 31 in the middle of the carrier 3 is the same size and shape as the workpiece opening. At this time, the workpiece is in the initial preparation state to be welded.

[0045] 1.2 Limit operation:

[0046] The six first cylinders 41 in the first limiting assembly 4 are activated, pushing the corresponding six first pressing blocks 43. The first welding holes 431 at the ends of the first pressing blocks 43 are located above the edge of the workpiece opening (at the rectangular welding portion 103), thereby precisely limiting the edge of the workpiece opening to the edge of the perforation 31 and preventing the opening edge from shifting during the welding process. The second cylinders 51 on the three mounting bases 52 are activated, and the second pressing blocks 53 at their output ends move along the slide rails on the mounting bases 52 toward the workpiece, pressing the workpiece from the side against the loading base 3. The second welding holes 531 on the second pressing blocks 53 are located above the side edges of the workpiece (at the side straight welding portion 104, the first side bend welding portion 105, and the second side bend welding portion 106), further securing the workpiece position from the side to prevent lateral displacement.

[0047] 1.3 Workpiece pressing:

[0048] The third cylinder 65 on the support seat 61 is started, and the piston rod is extended, driving the first connecting rod 64 which is pivotally connected to the first bracket 62 and the other end of which is pivotally connected to the second bracket 63 to rotate, driving the first pressure block 66 to press the workpiece tightly in the loading seat 3. This linkage structure ensures the stability of the workpiece during the welding process.

[0049] 1.4 Welding by the first welding mechanism 7:

[0050] The movable platform 2 is initially in the first welding position. The linear drive mechanism 92 lowers the hanging plate 93, driving the five first ultrasonic welding guns downward. Driven by the corresponding fourth cylinder 71, the first ultrasonic welding guns 73 move along the slide rails on the first mounting bracket 72, allowing the protrusions on the first welding gun tips 731 to extend into the weld opening. One of the first ultrasonic welding guns 73 welds the linear weld 104, while the remaining four weld the rectangular welds 103, welding the leather material 101 to the edge of the opening in the aggregate material 102. After the first welding mechanism 7 completes welding, the fourth cylinder 71 returns to its original position, and the linear drive mechanism 92 drives the hanging plate 93 upward to its original position.

[0051] 1.5 Second welding mechanism 8 welding:

[0052] The movable platform 2 moves to the second welding station. The linear drive mechanism 92 lowers the hanging plate 93, driving the pair of second ultrasonic welding guns 83 downward. The first and second side bend welds 105, 106 are welded, welding the leather material 101 to the side edges of the aggregate material 102. After welding is completed, the fifth cylinder 82 returns to its original position, and the linear drive mechanism 92 drives the hanging plate 93 upward to its original position.

[0053] 1.6 Reset and remove the welded workpiece

[0054] The movable platform 2 returns to the initial first welding position, the clamping mechanism 6, the first limiting assembly 4, and the second limiting assembly 5 are reset, and the workpiece is taken out.

[0055] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements can be made without departing from the principles of the present invention. These improvements should also be regarded as within the scope of protection of the present invention.

Claims

1. An automobile B-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 loading seats (3), the loading seats (3) are installed on the movable platform (2) through a group of columns (21) provided on the movable platform (2), the loading seats (3) are used to place workpieces, the workpieces include leather and aggregate, the leather is wrapped around the aggregate, the middle of the workpiece is provided with an opening, and the middle of the loading seat (3) is provided with a through hole (31) corresponding to the size of the opening; a first limiting component (4), the first limiting component (4) is arranged in a ring inside the through hole (31) and is used to limit the position of the opening on the workpiece At the edge of the perforation (31); a second limiting assembly (5), the second limiting assembly (5) is arranged on the movable platform (2), and is used to press and limit the workpiece on the side of the loading seat (3); a pressing mechanism (6), the pressing mechanism (6) is arranged on the movable platform (2), and is used to press the workpiece in the loading seat (3); a pair of first welding mechanisms (7) and a pair of second welding mechanisms (8), the first welding mechanisms (7) and the second welding mechanisms (8) are arranged above the frame (1), the first welding mechanism (7) is used to weld the leather material to the edge of the aggregate opening, and the second welding mechanism (8) is used to weld the leather material to the side edge of the aggregate.

2. The automobile B-pillar welding equipment according to claim 1, characterized in that: The first limiting assembly (4) includes a first cylinder (41), a first slide rail (42), and a first pressure block (43). The first cylinder (41) and the first slide rail (42) are installed on the movable platform (2). The output end of the first cylinder (41) is connected to the first pressure block (43). The first pressure block (43) is slidably connected to the first slide rail (42) via a slider (44) installed on the first slide rail (42). The end of the first pressure block (43) is provided with a first welding hole (431). The first welding hole (431) is provided above the edge of the workpiece opening.

3. The automobile B-pillar welding equipment according to claim 2, characterized in that: The second limiting assembly (5) includes a group of second cylinders (51) and a group of mounting seats (52). The mounting seats (52) are arranged on the movable platform (2). The second cylinder (51) is arranged on the mounting seat (52). The output end of the second cylinder (51) is provided with a second mortgage block (53). The second mortgage block (53) is provided with a second welding hole (531). The second mortgage block (53) presses the workpiece into the loading seat from the side. The second welding hole (531) is provided above the side edge of the workpiece. A slide rail is provided on the mounting seat (52) along the axial direction of the second cylinder (51) and is connected to the second mortgage block (53) through a slider provided on the slide rail.

4. The automobile B-pillar welding equipment according to claim 3, characterized in that: The clamping mechanism (6) includes a support base (61), a first bracket (62), a second bracket (63), a first connecting rod (64), and a third cylinder (65). The support base (61) is arranged on the movable platform (2). The first bracket (62) and the second bracket (63) are installed on the support base (61). The first bracket (62) and the third cylinder (65) are pivotally connected. The end of the piston rod of the third cylinder (65) is rotatably connected to the first connecting rod (64). One end of the first connecting rod (64) close to the third cylinder (65) is pivotally connected to the second bracket (63), and the other end is provided with a first pressing block (66). When the third cylinder (65) is in an extended state, its piston rod drives the first connecting rod (64) to rotate and drives the first pressing block (66) to press the workpiece in the loading base (3).

5. The automobile B-pillar welding equipment according to claim 4, characterized in that: The utility model further comprises a lifting mechanism (9), wherein the lifting mechanism (9) is arranged at the upper end of the frame (1), and comprises a telescopic rod (91), a linear drive mechanism (92), and a hanging plate (93). The linear drive mechanism (92) is installed at the upper end of the frame (1), and its output end is connected to the upper side of the hanging plate (93). One end of the telescopic rod (91) is installed at the upper end of the frame (1), and the other end is connected to the upper side of the hanging plate (93).

6. The automobile B-pillar welding equipment according to claim 5, characterized in that: The first welding mechanism (7) includes a group of fourth cylinders (71), a group of first mounting frames (72), and a group of first ultrasonic welding guns (73). The first mounting frames (72) are mounted on the lower side of the hanging plate (93). The fourth cylinder (71) is mounted on the first mounting frames (72). The first mounting frames (72) are provided with a slide rail along the axial direction of the fourth cylinder (71) and are connected to the first ultrasonic welding gun (73) via a slider provided on the slide rail. The welding end of the first ultrasonic welding gun (73) is provided with a first welding gun head (731), and the first welding gun head (731) is provided with a convex portion.

7. The automobile B-pillar welding equipment according to claim 6, characterized in that: The second welding mechanism (8) includes a pair of connecting rods (81), a pair of fifth cylinders (82), and a pair of second ultrasonic welding guns (83). The upper end of the connecting rod (81) is mounted on the lower side of the hanging plate (93), and the lower end is rotatably connected to the first mounting plate (84). The fifth cylinder (82) is mounted on the first mounting plate (84). The output end of the fifth cylinder (82) is connected to the second mounting plate (85). The second ultrasonic welding gun (83) is mounted on the second mounting plate (85). The second mounting plate (85) is provided with a slide rail and is connected to the first mounting plate (84) via a slider provided on the slide rail. The end of the second ultrasonic welding gun (83) is provided with a second welding gun head (831), and the second welding gun head (831) is provided with a convex portion.

8. The automobile B-pillar welding equipment according to claim 1, characterized in that: A second slide rail (11) and a first linear drive mechanism (12) are installed below the frame (1); the movable platform (2) is slidably connected to the second slide rail (11) via a slider; and the first linear drive mechanism (12) drives the movable platform (2) to move.

9. The automobile B-pillar welding equipment according to claim 4, characterized in that: The first pressing block (66) is made of polyurethane.

Images