Conveying device for carriage manufacturing

Abstract

The invention relates to the technical field of conveying devices, and discloses a conveying device for carriage manufacturing, which comprises a conveying roller and a mechanical arm, the grabbing unit is arranged at the movable end of the mechanical arm and comprises a connecting base plate arranged at the movable end of the mechanical arm, connecting frames are symmetrically installed on the connecting base plate, supports are installed on the connecting frames, and first air cylinders are symmetrically installed on the supports. A first clamping jaw is installed at the telescopic end of the first air cylinder. And the self-offset unit is arranged on the connecting base plate and used for accurately adjusting the position of the carriage plate under the condition that the carriage plate is not turned over so as to achieve welding of a welding seam on the other face of the carriage plate. The self-offset unit is arranged on the connecting base plate, traditional turn-over operation is not needed, the position of the carriage plate is accurately offset only through the self-offset unit, welding of the other face can be achieved, the operation time is greatly shortened, the overall efficiency of welding work is greatly improved, and the production process is optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying devices, and more particularly to a conveying device used for carriage manufacturing. Background Art

[0002] In the modern carriage manufacturing industry, efficient and accurate production processes are essential to ensure product quality and improve production efficiency. Among them, the welding of carriage panels is a key process and has strict requirements on the conveying device. Traditional carriage manufacturing conveying devices have many limitations in the process of carriage panel welding.

[0003] Taking the welding process of the upper and lower surface welds of the car body panel as an example, the conventional operation mode is to complete the single-sided welding first, then clamp the car body panel with the help of the gripping unit, and then rely on the flipping device to flip the car body panel to complete the welding work on the other side. However, after the single-sided welding is completed, the clamping and flipping operations need to be performed in sequence, which not only increases the process time, but also introduces more uncertainties due to the increase in manual operation steps, which seriously hinders the improvement of production efficiency.

[0004] Secondly, frequent clamping and flipping damage the quality of the car body. During this process, the car body is prone to surface scratches due to collisions, and uneven force will cause deformation. Surface scratches affect the appearance of the car body, and deformation directly destroys the welding accuracy, resulting in a decrease in welding quality, which ultimately leads to a decrease in the overall quality of the car body and an increase in the defective rate. Summary of the invention

[0005] The present invention provides a conveying device for car body manufacturing, which solves the technical problem in the related art that after single-sided welding is completed, the clamping and flipping operations need to be performed in sequence, which not only increases the process time, but also introduces more uncertainties due to the increase in manual operation steps, seriously hindering the improvement of production efficiency.

[0006] The present invention discloses a conveying device for carriage manufacturing, comprising a conveying roller and a mechanical arm; a grabbing unit, wherein the grabbing unit is arranged at the movable end of the mechanical arm, and the grabbing unit comprises a connecting base plate arranged on the movable end of the mechanical arm, and a connecting frame is symmetrically installed on the connecting base plate, a bracket is installed on the connecting frame, and a first cylinder is symmetrically installed on the bracket, and a first clamp is installed at the telescopic end of the first cylinder; a self-offset unit is arranged on the connecting base plate, and is used for accurately adjusting the position of the carriage plate without flipping the carriage plate to realize welding of the weld on the other side of the carriage plate.

[0007] As a further optimization scheme of the present invention, the self-offsetting unit includes a fixing frame symmetrically mounted on a connecting base plate, and a threaded rod is connected to a bearing on the fixing frame, a threaded sleeve is threadedly connected to the threaded rod, and the threaded rods are connected by a first pulley transmission mechanism, a servo motor is mounted on one group of the fixing frames, and an output shaft of the servo motor is fixedly connected to one group of the threaded rods.

[0008] As a further optimization solution of the present invention, a support frame is installed on the threaded sleeve, and a bearing frame is installed on the side away from the support frame. Connecting columns are symmetrically installed on the bearing frame, and a clamping unit is provided on the connecting columns.

[0009] As a further optimization solution of the present invention, the support frame is arranged in an inverted U-shaped structure, and the support frame is slidably connected to the inner wall of the fixing frame.

[0010] As a further optimization solution of the present invention, the clamping unit includes a second cylinder installed on the connecting column, and a moving frame is installed at the telescopic end of the second cylinder, and the moving frame is provided with a second clamping claw.

[0011] As a further optimization solution of the present invention, the frames at both ends of the support frame are arranged to be inclined to avoid interference between the second clamping jaw and the first clamping jaw when the second clamping jaw moves.

[0012] As a further optimization solution of the present invention, the first clamping jaw and the second clamping jaw are located on the same horizontal line, and the second clamping jaw is used to clamp the carriage plate and perform lateral movement adjustment.

[0013] As a further optimization solution of the present invention, the second clamping jaw is arranged in a C-shaped structure, and a rubber pad is arranged inside the second clamping jaw.

[0014] As a further optimization scheme of the present invention, a rack plate is installed on the second clamping jaw, and a gear is meshed on the rack plate. A connecting shaft is connected by a bearing between each two groups of the moving frames, and the connecting shaft is fixedly connected to the gear. A dual-axis motor is installed on one group of the moving frames, and the two output shafts of the dual-axis motor are fixedly connected to the connecting shaft, and the two groups of connecting shafts are connected by a second pulley transmission mechanism.

[0015] As a further optimization solution of the present invention, a slide groove is provided on the movable frame, and a slider is slidably connected in the slide groove, and the slider is fixedly connected to the second clamping claw.

[0016] The beneficial effects of the present invention are as follows: by arranging a self-offset unit on the connecting base plate, the present invention eliminates the need for traditional flipping operations, and can achieve welding on the other side only by accurately offsetting the position of the car plate by the self-offset unit, thereby greatly shortening the operation time, greatly improving the overall efficiency of the welding work, and optimizing the production process; and, the second clamping jaw of the clamping unit is driven by the meshing transmission of the gear and the rack plate, and driven by the dual-axis motor, the car plate can be moved laterally, thereby avoiding interference of the load frame to the welding equipment, allowing the welding equipment to achieve continuous welding of the car plate without bypassing obstacles, reducing unnecessary moving paths of the welding equipment, and further improving welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the mechanical arm and the grasping unit of the present invention;

[0019] Figure 3 The three-dimensional structure of the grabbing unit of the present invention is shown in FIG. Figure 1 ;

[0020] Figure 4 It is a schematic diagram of a partial three-dimensional structure of a grabbing unit of the present invention;

[0021] Figure 5 The three-dimensional structure of the grabbing unit of the present invention is shown in FIG. Figure 2 ;

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the connection substrate and the self-deflection unit of the present invention;

[0023] Figure 7 This is a schematic diagram of the local three-dimensional structure of the self-deflection unit of the present invention. Figure 1 ;

[0024] Figure 8 This is a schematic diagram of the local three-dimensional structure of the self-deflection unit of the present invention. Figure 2 ;

[0025] Fig. 9 It is a schematic diagram of a partial three-dimensional structure of the clamping unit of the present invention.

[0026] In the figure: 100, conveying roller; 200, robotic arm; 300, grabbing unit; 310, connecting base plate; 320, connecting frame; 330, bracket; 340, first cylinder; 350, first clamping claw; 360, self-offset unit; 361, fixed frame; 362, threaded rod; 363, threaded sleeve; 364, supporting frame; 365, first pulley transmission mechanism; 366, servo motor; 367, carrying frame; 368, connecting column; 369, clamping unit; 3691, second cylinder; 3692, moving frame; 3693, second clamping claw; 3694, rack plate; 3695, gear; 3696, connecting shaft; 3697, slide groove; 3698, slider; 3699, dual-axis motor; 36910, second pulley transmission mechanism. DETAILED DESCRIPTION

[0027] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0028] According to the attached Figure 1 To Attachment Figure 4 As shown, a conveying device for car body manufacturing includes a conveying roller 100 and a mechanical arm 200; a grabbing unit 300, which is arranged at the movable end of the mechanical arm 200, so that the grabbing action can flexibly reach different positions, meet the grabbing requirements of different parts at different positions in car body manufacturing, provide a stable installation foundation for the entire grabbing unit 300, and ensure the stability of the grabbing process. The grabbing unit 300 includes a connecting base plate 310 arranged on the movable end of the mechanical arm 200, and a connecting frame 320 is symmetrically installed on the connecting base plate 310, a bracket 330 is installed on the connecting frame 320, and a first cylinder 340 is symmetrically installed on the bracket 330, and a first clamp 350 is installed at the telescopic end of the first cylinder 340.

[0029] Specifically, when the first cylinder 340 is driven to perform telescopic movement, the first cylinder 340 drives the first clamping jaws 350 to move closer to or away from each other, thereby facilitating the clamping and lifting of the car body panel, thereby facilitating the welding of the outer wall weld of the car body panel in cooperation with the welding device.

[0030] It should be understood that when the carriage plate needs to be welded, the first clamp 350 quickly and accurately clamps the carriage plate by driving the first cylinder 340, and then the robot arm 200 smoothly lifts the carriage plate to a suitable height and angle, perfectly cooperating with the welding device. At this time, the carriage plate is accurately positioned at the welding position, and the welding device can accurately weld the weld on the lower surface of the carriage plate. This collaborative operation mode not only improves the efficiency and quality of welding, but also reduces the errors and safety risks caused by manual handling and positioning.

[0031] According to the attached Figure 3 and attached Figure 4 As shown, in the process of car manufacturing, according to the welding process requirements of the welds on the upper and lower surfaces of the car plate, after the single-sided welding is completed, the car plate usually needs to be flipped over to realize the welding operation on the other side. The traditional process uses a grabbing unit 300 to clamp the car plate. After the single-sided welding is completed, the clamping and fixation must be released first, and then the car plate must be flipped with the help of a flipping device. This process is relatively cumbersome and seriously affects work efficiency. In this embodiment, a self-offset unit 360 is provided on the connecting substrate 310, and the self-offset unit 360 can flexibly adjust the position of the car plate. During the actual welding operation, there is no need to perform the traditional flipping operation on the car plate. Only by relying on the precise offset of the position of the car plate by the self-offset unit 360, the welding of the weld on the other side of the car plate can be realized, which greatly improves the overall efficiency of the welding work and optimizes the production process.

[0032] Specifically, the self-offset unit 360 is set to avoid frequent flipping of the car body, reduce the risk of collision and deformation caused by flipping operations, ensure that the car body always maintains a stable position and shape, and create good conditions for precise welding, thereby improving the quality of welds, reducing the defective rate, and improving the overall quality of the car body. By flexibly adjusting the position of the car body, the self-offset unit 360 can adapt to car body panels of different sizes and shapes, without the need to equip each specification of car body panels with a specific flipping device.

[0033] Furthermore, according to the attached Figure 5 To Attachment Figure 7As shown, the self-offset unit 360 includes a fixed frame 361 symmetrically mounted on the connecting base plate 310, and a threaded rod 362 is connected to the bearing on the fixed frame 361, and a threaded sleeve 363 is threadedly connected to the threaded rod 362. The threaded rods 362 are connected by a first pulley transmission mechanism 365. The first pulley transmission mechanism 365 ensures that multiple threaded rods 362 can rotate synchronously, so that the movement of the threaded sleeves 363 and the bearing frame 367 on both sides is completely synchronized, avoiding the tilting and twisting of the carriage plate during the movement due to asynchrony, and ensuring the stability of the position of the carriage plate. Among them, this synchronization is particularly important when the position of a large carriage plate is offset, which can prevent the deformation of the carriage plate due to uneven force and affect the subsequent welding quality. A servo motor 366 is installed on one group of fixed frames 361, and the output shaft of the servo motor 366 is fixedly connected to one group of threaded rods 362.

[0034] It should be noted that a support frame 364 is installed on the threaded sleeve 363, and the support frame 364 is arranged in an inverted U-shaped structure, and the support frame 364 is slidably connected to the inner wall of the fixed frame 361, and the support frame 364 is auxiliary supported by the fixed frame 361. A bearing frame 367 is installed on the side away from the support frame 364, and connecting columns 368 are symmetrically installed on the bearing frame 367. Through the setting of the bearing frame 367, it is convenient to receive the car body panel, thereby improving the stability of the equipment.

[0035] During operation, the servo motor 366 is driven to rotate, and the threaded rod 362 is controlled to rotate. Under the action of the threaded connection between the threaded rod 362 and the threaded sleeve 363, the support frame 364 is driven to move; when the support frame 364 moves, the carrier frame 367 is synchronously driven to move, thereby driving the connecting column 368 to move, so that the clamping unit 369 moves synchronously, thereby driving the car body plate to shift, so that the car body plate is detached from the bottom of the connecting base plate 310, and the upper surface is completely exposed to the outside world, which is convenient for the welding device to weld the upper surface of the car body plate.

[0036] According to the attached Figure 6 As shown, a clamping unit 369 is provided on the connecting column 368 for clamping and fixing the car body plate. Through the setting of the clamping unit 369, it is convenient to transfer the car body plate from the grabbing unit 300 to the clamping unit 369, and the position of the car body plate is adjusted through the self-offset unit 360, so as to facilitate the welding process on the upper surface of the car body plate.

[0037] Specifically, according to the attached Figure 7 To Attachment Fig. 9As shown, the clamping unit 369 includes a second cylinder 3691 installed on the connecting column 368, and a mobile frame 3692 is installed at the telescopic end of the second cylinder 3691, and a second clamping jaw 3693 is provided on the mobile frame 3692. The first clamping jaw 350 and the second clamping jaw 3693 are on the same horizontal line, and the second clamping jaw 3693 is used to clamp the car body plate and perform lateral movement adjustment. The second clamping jaw 3693 is arranged in a C-shaped structure, and a rubber pad is arranged inside the second clamping jaw 3693.

[0038] Among them, the second cylinder 3691 provides power for the clamping action, and its telescopic end pushes the movable frame 3692, causing the second clamping claw 3693 to clamp or release, which can provide a relatively stable and controllable clamping force to ensure that when grabbing the car body panel, the clamping claw can firmly fix the panel to avoid slipping during transportation or welding.

[0039] Furthermore, a rack plate 3694 is mounted on the second clamping jaw 3693, and a gear 3695 is meshedly connected to the rack plate 3694. A connecting shaft 3696 is connected to the bearing between each two sets of mobile frames 3692, and the connecting shaft 3696 is fixedly connected to the gear 3695. A slide groove 3697 is provided on the mobile frame 3692, and a slider 3698 is slidably connected in the slide groove 3697. The matching design of the slide groove 3697 and the slider 3698 provides a precise guide for the movement of the second clamping jaw 3693. The slider 3698 slides in the slide groove 3697, which not only limits the movement trajectory of the clamping jaw and ensures its linear movement, but also reduces the deviation during the movement and realizes high-precision clamping positioning. The slider 3698 is fixedly connected to the second clamp 3693, and a dual-axis motor 3699 is installed on one set of movable frames 3692, and the two output shafts of the dual-axis motor 3699 are fixedly connected to the connecting shaft 3696, and the two sets of connecting shafts 3696 are connected through a second pulley transmission mechanism 36910.

[0040] In this embodiment, through the meshing transmission of the gear 3695 and the rack plate 3694, when the dual-axis motor 3699 drives the connecting shaft 3696 to rotate, the gears 3695 on both sides will rotate synchronously, thereby driving the meshing rack plate 3694 and the second clamp 3693 to move synchronously, so that the car body plate can move laterally, thereby avoiding interference of the support frame 367 to the welding equipment. The welding equipment needs to bypass the obstacles and perform continuous welding on the car body plate during welding, which helps to improve the efficiency of car body plate welding.

[0041] It should be noted that when the carriage plate needs to be clamped, the second cylinder 3691 installed on the connecting column 368 first provides power. The telescopic end of the second cylinder 3691 starts to move, pushing the mobile frame 3692 connected thereto to move. During the movement of the mobile frame 3692, the second clamping jaw 3693 arranged thereon is driven to move synchronously, thereby realizing the clamping or releasing action of the second clamping jaw 3693. Since the force output by the second cylinder 3691 is relatively stable, it can provide a stable and controllable clamping force for the second clamping jaw 3693, ensuring that when grabbing the carriage plate, the second clamping jaw 3693 can firmly fix the plate to prevent the carriage plate from slipping during transportation or welding.

[0042] At the same time, the slider 3698 slides in the slide groove 3697. The cooperation between the slide groove 3697 and the slider 3698 provides precise guidance for the movement of the second clamp 3693, limiting the movement trajectory of the second clamp 3693 so that it can only move in a straight line along the slide groove 3697, thereby reducing movement deviation.

[0043] In addition, by rotating the dual-axis motor 3699, the connecting shaft 3696 is controlled to rotate, thereby causing the gear 3695 to rotate. Under the action of the meshing connection between the gear 3695 and the rack plate 3694, the carriage plate is driven to move laterally in the grabbing unit 300, thereby facilitating the welding of the carriage plate in cooperation with the welding equipment, avoiding unnecessary moving paths for the welding equipment, and improving work efficiency.

[0044] An example of the present specific implementation mode is described above, but the present embodiment is not limited to the above-mentioned specific implementation mode, which is merely illustrative and not restrictive. A person skilled in the art may make many forms inspired by the present embodiment, all of which are protected by the present embodiment.

Claims

1. A conveying device for carriage manufacturing, characterized in that: include: Conveying roller (100) and robot arm (200); A gripping unit (300), the gripping unit (300) being arranged at the movable end of the mechanical arm (200), the gripping unit (300) comprising a connecting substrate (310) arranged at the movable end of the mechanical arm (200), a connecting frame (320) being symmetrically mounted on the connecting substrate (310), a bracket (330) being mounted on the connecting frame (320), a first cylinder (340) being symmetrically mounted on the bracket (330), and a first clamping claw (350) being mounted at the telescopic end of the first cylinder (340); The self-offset unit (360) is arranged on the connection base plate (310) and is used to accurately adjust the position of the carriage plate to achieve welding of the weld seam on the other side of the carriage plate without turning over the carriage plate.

2. A conveying device for carriage manufacturing according to claim 1, characterized in that: The self-deflecting unit (360) comprises a fixing frame (361) symmetrically mounted on a connecting base plate (310), wherein a threaded rod (362) is connected to a bearing on the fixing frame (361), a threaded sleeve (363) is threadedly connected to the threaded rod (362), and the threaded rods (362) are connected to each other via a first pulley transmission mechanism (365), wherein a servo motor (366) is mounted on one group of the fixing frames (361), and an output shaft of the servo motor (366) is fixedly connected to one group of the threaded rods (362).

3. A conveying device for carriage manufacturing according to claim 2, characterized in that: A support frame (364) is installed on the threaded sleeve (363), and a bearing frame (367) is installed on one side away from the support frame (364). Connecting columns (368) are symmetrically installed on the bearing frames (367), and a clamping unit (369) is provided on the connecting columns (368).

4. A conveying device for carriage manufacturing according to claim 3, characterized in that: The support frame (364) is arranged in an inverted U-shaped structure, and the support frame (364) is slidably connected to the inner wall of the fixing frame (361).

5. A conveying device for carriage manufacturing according to claim 3, characterized in that: The clamping unit (369) comprises a second cylinder (3691) mounted on a connecting column (368), and a movable frame (3692) is mounted on the telescopic end of the second cylinder (3691), and a second clamping claw (3693) is provided on the movable frame (3692).

6. A conveying device for carriage manufacturing according to claim 5, characterized in that: The frames at both ends of the support frame (367) are arranged in an inclined manner to avoid interference between the second clamping jaw (3693) and the first clamping jaw (350) when the second clamping jaw (3693) moves.

7. A conveying device for carriage manufacturing according to claim 5, characterized in that: The first clamping jaw (350) and the second clamping jaw (3693) are located on the same horizontal line, and the second clamping jaw (3693) is used to clamp the carriage plate and perform lateral movement adjustment.

8. A conveying device for carriage manufacturing according to claim 5, characterized in that: The second clamping jaw (3693) is arranged in a C-shaped structure, and a rubber pad is arranged inside the second clamping jaw (3693).

9. A conveying device for carriage manufacturing according to claim 5, characterized in that: A rack plate (3694) is installed on the second clamping jaw (3693), and a gear (3695) is meshedly connected to the rack plate (3694). A connecting shaft (3696) is connected by a bearing between each two groups of the moving frames (3692), and the connecting shaft (3696) is fixedly connected to the gear (3695). A double-axis motor (3699) is installed on one group of the moving frames (3692), and two output shafts of the double-axis motor (3699) are fixedly connected to the connecting shaft (3696), and the two groups of the connecting shafts (3696) are connected via a second pulley transmission mechanism (36910).

10. A conveying device for carriage manufacturing according to claim 9, characterized in that: The movable frame (3692) is provided with a sliding groove (3697), and a sliding block (3698) is slidably connected in the sliding groove (3697), and the sliding block (3698) is fixedly connected to the second clamping claw (3693).

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