Automobile welding assembly line

Abstract

The utility model discloses an automobile welding assembly line which comprises a machine frame. The machine frame is provided with a first welding position, a welding mechanical arm used for welding workpieces on the first welding position, a plurality of flat plates used for conveying the workpieces, a jacking mechanism used for driving the flat plates to move up and down, and a conveying mechanism used for driving the flat plates to be conveyed along a preset path. The rack is provided with a guide rail and a sliding block in sliding connection with the guide rail. The guide rail is further provided with a limiting detection element. A code scanning gun is arranged on the welding mechanical arm, codes capable of being recognized by the code scanning gun are arranged on the surface of the workpiece in a matched mode, and the code scanning gun is electrically connected with the controller. The jacking mechanism comprises a jacking plate, a jacking assembly and a base which are sequentially arranged from top to bottom. The jacking plate is fixedly connected with the bottom of the flat plate, and the base is fixedly connected with the sliding block. By orderly combining moving, jacking and welding together, automatic conveying and welding of workpieces are achieved, production efficiency is high, the structure is simple, cost is low, and wide popularization is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile welding production, and more specifically, to an automobile welding assembly line. Background Art

[0002] In modern automobile manufacturing, it is often necessary to weld automobile workpieces. Usually, the workpieces are moved along the assembly line for processing. Since the processing time of each station is different, the processing at the next station may not be completed yet, while the processing at the previous process has been completed. In addition, the feeding line continues to feed materials, which can easily cause the automatic connection between the upper and lower processes to be troublesome and inefficient, seriously affecting production efficiency.

[0003] Therefore, it is urgent to provide an automobile welding production line that can improve the coordination degree between upper and lower processes and improve production efficiency. Utility Model Content

[0004] In view of this, the utility model provides an automobile welding assembly line, including a frame, on which a first welding position is arranged, a welding robot arm used for welding a workpiece on the first welding position, a plurality of flat plates used for conveying the workpiece, a lifting mechanism used for driving the flat plates to move up and down, and a conveying mechanism used for driving the flat plates to convey along a predetermined path; a guide rail and a slider slidably connected to the guide rail are arranged on the frame; a limit position detection element is also arranged on the guide rail; a barcode scanner is arranged on the welding robot arm, a code recognizable by the barcode scanner is arranged on the surface of the workpiece, and the barcode scanner is electrically connected to a controller; the lifting mechanism comprises a lifting plate, a lifting assembly and a base arranged in sequence from top to bottom; the lifting plate is fixedly connected to the bottom of the flat plate, and the base is fixedly connected to the slider.

[0005] Preferably, the jacking assembly includes a jacking cylinder arranged on the base, a cylinder mounting seat is provided on the top of the jacking cylinder, a floating joint is provided at the output end of the jacking cylinder, and the jacking plate is fixedly connected to the output end of the jacking cylinder through the floating joint.

[0006] Preferably, adjacent positioning blocks are provided on the flat plate, and the first space formed between the adjacent positioning blocks is used for lifting the workpiece.

[0007] Preferably, the conveying mechanism includes a feeding line and a movable cylinder, the movable cylinder drives the feeding line to convey along a predetermined path, and two ends of the feeding line are respectively wound around the frame.

[0008] Preferably, a fixing plate is fixedly connected to the side surface of the base, and the fixing plate is connected to the sliding block by screws.

[0009] Preferably, the welding robot arm includes a base, a rotating mechanism, a welding frame and a robot arm mechanism; the welding frame is arranged on the base through the rotating mechanism, and the welding frame is provided with a driving mechanism for driving the robot arm mechanism to move; the robot arm mechanism includes a robot arm, a transmission arm is rotatably connected to the robot arm, and a welding device is rotatably connected to the transmission arm; the welding device includes a welding head mounting plate, a plurality of welding head assemblies arranged on the welding head mounting plate, and the welding head assemblies are arranged on the welding head mounting plate.

[0010] Compared with the prior art, the automobile welding production line provided by the utility model achieves at least the following beneficial effects:

[0011] The utility model provides an automobile welding production line, which places multiple workpieces on a flat plate in sequence, and transports the workpieces to a first welding position through the lifting action of a lifting mechanism and the movement of a conveying mechanism, and welds the workpieces using a welding robot arm on the first welding position. The application combines movement, lifting, and welding in an orderly manner, realizes automatic conveying and welding of workpieces, has high production efficiency, simple structure, low cost, and is easy to be widely promoted. A guide rail and a slider slidably connected to the guide rail are provided on the frame, the lifting plate is fixedly connected to the flat plate, and the base is fixedly connected to the slider, so that the lifting mechanism can move with the flat plate. Since the processing time of each station is different, in order to ensure that the processing at the next station is completed, a limit detection element is also provided on the guide rail. When it is found that the processing at the next workstation is not completed, while the previous process has been completed and the material is continuously fed, the limit detection element senses the position of the workpiece to realize the positioning function, and the lifting mechanism drives the plate to rise to the predetermined position and disengages from the conveyor, so that the conveyed workpiece stays here. After the processing at the next workstation is completed, the lifting mechanism is lowered and the workpiece is sent to the next process for processing; a barcode scanner is provided on the welding robot arm, and a code recognizable by the barcode scanner is provided on the surface of the workpiece. The barcode scanner is electrically connected to the controller, and the controller controls the corresponding workstation for processing according to the information feedback from the barcode scanner.

[0012] Of course, any product implementing the present utility model does not necessarily need to achieve all of the above-mentioned technical effects at the same time.

[0013] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0015] Figure 1 This is a schematic diagram of the overall structure of an automobile welding production line provided by the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of a jacking mechanism provided by the utility model;

[0017] Figure 3 yes Figure 2 A cross-sectional view of the middle lifting assembly along the A-A' direction;

[0018] Figure 4 The utility model is a schematic diagram of the overall structure of a welding mechanical arm. DETAILED DESCRIPTION

[0019] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0020] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0021] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0022] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0023] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0024] Please refer to Figure 1 to Figure 2 , Figure 1 This is a schematic diagram of the overall structure of an automobile welding production line provided by the utility model. Figure 2It is a schematic diagram of the overall structure of a lifting mechanism provided by the utility model. The present application provides an automobile welding assembly line 000, including a frame 1, on which a first welding position is provided, a welding robot arm 5 for welding a workpiece on the first welding position, a plate 6 for conveying the workpiece, a lifting mechanism 7 for driving the plate 6 to move up and down, and a conveying mechanism 8 for driving the plate 6 to convey along a predetermined path; a guide rail 2 and a slider 3 slidably connected to the guide rail 2 are provided on the frame 1; a limit position detection element is also provided on the guide rail 2; a barcode scanner 10 is provided on the welding robot arm 5, and a code recognizable by the barcode scanner 10 is provided on the surface of the workpiece, and the barcode scanner 10 is electrically connected to the controller; the lifting mechanism 7 includes a lifting plate 71, a lifting assembly 72 and a base 73 arranged in sequence from top to bottom; the lifting plate 71 is fixedly connected to the plate 6, the base 73 is fixedly connected to the slider 3, and the lifting assembly 72 drives the workpiece on the plate 6 to rise and fall.

[0025] It can be understood that multiple workpieces are placed on the flat plate 6 in sequence, and the workpieces are transported to the first welding position through the lifting action of the lifting mechanism 7 and the movement of the conveying mechanism 8. The welding robot arm 5 on the first welding position is used to weld the workpieces. The present application combines movement, lifting, and welding in an orderly manner, realizes automatic conveying and welding of workpieces, has high production efficiency, simple structure, low cost, and is easy to be widely promoted. The frame 1 is provided with a guide rail 2 and a slider 3 slidably connected to the guide rail 2, the lifting plate 71 is fixedly connected to the flat plate 6, and the base 73 is fixedly connected to the slider 3 to facilitate the movement of the lifting mechanism 7. Since the processing time of each station is different, in order to ensure that the processing at the next station is completed, a limit detection element is also provided on the guide rail 2. The limit detection element is generally provided at the junction of two adjacent conveying structure stations. When it is found that the processing at the next workstation is not completed, while the previous process has been completed, and the feeding line 81 continues to feed, the limit detection element senses the position of the workpiece to realize the positioning function, and the lifting assembly 72 drives the plate 6 to rise to the predetermined position and disengage from the conveyor, so that the conveyed workpiece stays here, and waits for the processing at the next workstation to be completed, the lifting mechanism 7 is lowered, and the workpiece is sent to the next process for processing; the welding robot arm 5 is equipped with a barcode scanner 10, and the surface of the workpiece includes a code that can be recognized by the barcode scanner 10. The barcode scanner 10 is electrically connected to the controller, and the controller controls the corresponding workstation for processing according to the information feedback from the barcode scanner 10.

[0026] It should be noted that, in this embodiment, a lifting mechanism 7 is provided under each plate 6 for explanation, but it is not limited to this. The number of plates 6 and lifting mechanisms 7 used can be selected according to the length of the assembly line, and the number of plates 6 that can be stably lifted is the best choice.

[0027] Optional, see Figure 1A fixing plate 74 is fixedly connected to the side of the base 73, and the fixing plate 74 is connected to the slider by screws so that the base 73 is fixedly connected to the slider 3, and the lifting plate 71 is fixedly connected to the flat plate 6, so that the lifting mechanism can move with the flat plate.

[0028] Optional, see Figures 2 to 3 , Figure 3 yes Figure 2 A cross-sectional view of the middle lifting assembly along the A-A' direction, the lifting assembly 72 includes a lifting cylinder 721 arranged on the base 73, a cylinder mounting seat 722 is arranged on the top of the lifting cylinder 721, a floating joint 723 is arranged on the output end of the lifting cylinder 721, and the lifting plate 71 is fixedly connected to the output end of the lifting cylinder 721 through the floating joint 723. The lifting cylinder 721 drives the plate 6 to rise to a predetermined position through the floating joint 723 and disengages from the conveying, so that the conveyed workpiece stays there, and after the next station is processed, the lifting cylinder 721 drives the plate 6 to descend to a predetermined position through the floating joint 723, and the workpiece is sent to the next process for processing.

[0029] It should be noted that, in this embodiment, a lifting mechanism 7 is provided under each flat plate 6 for explanation, but it is not limited to this. The number of flat plates 6 and lifting mechanisms 7 used can be selected according to the length of the assembly line, and the number of flat plates 6 that can be stably lifted is the best number to be selected. If multiple lifting mechanisms 7 are provided under each flat plate 6, the extension direction of each lifting cylinder 721 is parallel, ensuring the balance of the same flat plate 6 being lifted by the lifting cylinder 721.

[0030] Optional, see Figure 1 The conveying mechanism 8 includes a feeding line 81 and a moving cylinder 82. The moving cylinder 82 drives the feeding line 81 to convey along a predetermined path. Both ends of the feeding line 81 are respectively wound around the frame 1; the moving cylinder 82 drives the feeding line 81 to transmit along the predetermined path, and multiple workpieces are placed on the flat plate 6 in sequence. The workpieces are conveyed to the first welding position through the moving action of the conveying mechanism 8, and the welding robot arm 5 on the first welding position is used to weld the workpiece, thereby realizing automatic conveying of the workpiece.

[0031] Optional, see Figure 1 Adjacent positioning blocks 61 are provided on the flat plate 6, and a first space 611 formed between the adjacent positioning blocks 61 is used to lift the workpiece. Preferably, each first space 611 is a space capable of placing a workpiece, thereby avoiding placement deviation of the workpiece during movement.

[0032] Optional, see Figure 4 , Figure 4It is a schematic diagram of the overall structure of a welding robot arm provided by the utility model, wherein the welding robot arm 5 comprises a base 51, a rotating mechanism 52, a welding frame 53 and a robot arm mechanism 54; the welding frame 53 is arranged on the base 51 through the rotating mechanism 52, and the welding frame 53 is provided with a driving mechanism 55 for driving the robot arm mechanism 54 to move; the robot arm mechanism 54 comprises a robot arm 541, a transmission arm 542 is rotatably connected to the robot arm 541, and a welding device 543 is rotatably connected to the transmission arm 542; the welding device 543 comprises a welding head mounting plate 5431, and a plurality of welding head assemblies 5432 are arranged on the welding head mounting plate 5431, and the welding head assemblies 5432 are arranged on the welding head mounting plate 5431.

[0033] It can be understood that the welding robot arm 5 includes a base 51, a rotating mechanism 52, a welding frame 53 and a robot arm mechanism 54 to achieve welding of the car; the welding frame 53 is arranged on the base 51 through the rotating mechanism 52, and the welding frame 53 is provided with a driving mechanism 55 for driving the robot arm mechanism 54 to move, so as to complete the adjustment of the working direction of the robot arm, so that the welding robot arm 5 provided by the utility model can be rotated and moved in the horizontal direction at the same time, thereby increasing flexibility; by setting the robot arm mechanism 54 including a robot arm 541, a transmission arm 542 is rotatably connected to the robot arm 541, a welding device 543 is rotatably connected to the transmission arm 542, the welding device 543 includes a welding head mounting plate 5431, and a plurality of welding head assemblies 5432 are arranged on the welding head mounting plate 5431, and the welding head assemblies 5432 are arranged on the welding head mounting plate 5431, so as to achieve welding of the car and ensure the quality and efficiency of welding. The welding robot arm 5 of the utility model can meet the requirements of welding at various positions and angles, can effectively avoid the welding position and angle being relatively single, has stable and reliable welding quality, is easy to operate, reduces the labor intensity of workers, and improves production efficiency.

[0034] In actual operation, when welding is required, multiple workpieces are placed on the flat plate 6 in sequence, the flat plate 6 is fixedly connected to the lifting plate 71, and the base 73 is fixedly connected to the slider 3 to facilitate the movement of the lifting mechanism 7. The flat plate 6 is driven by the conveying mechanism 8 to convey the workpiece along a predetermined path to the bottom of the welding robot arm 5 at the first welding position. The welding robot arm 5 is equipped with a barcode scanner 10, and the surface of the workpiece includes a code that can be recognized by the barcode scanner 10. The barcode scanner 10 is electrically connected to the controller, and the controller controls the welding robot arm 5 for processing according to the information feedback of the barcode scanner 10. By starting the rotating mechanism 52 arranged under the welding frame 53 and the driving mechanism 55 arranged above the welding frame 53, the robot arm mechanism 54 is driven to move, and the working direction of the robot arm is adjusted, so that the welding robot arm 5 provided by the utility model can be rotated and moved in the horizontal direction at the same time, which increases flexibility, so that it is aligned with the welding position to complete welding, and flows out to the next process through the conveying mechanism 8, thereby ensuring the quality and efficiency of welding. The welding mechanical arm 5 of the utility model can meet the welding of various positions and angles, can effectively avoid the welding position and angle being relatively single, the welding quality is stable and reliable, the operation is simple, the labor intensity of workers is reduced, and the production efficiency is improved. Since the processing time of each station is different, when it is found that the processing on the next station is not completed, and the previous process has been completed, and the feeding line 81 continues to feed, the limit detection element senses the position of the workpiece to realize the positioning function, and the lifting cylinder 721 drives the flat plate 6 to rise to the predetermined position through the floating joint 723 and disengages from the conveying, so that the conveyed workpiece stays here, waiting for the processing on the next station to be completed, and the lifting cylinder 721 drives the flat plate 6 to drop to the predetermined position through the floating joint 723, and the workpiece is sent to the next process for processing. The workpiece is transported to the first welding position through the lifting action of the lifting mechanism 7 and the moving action of the conveying mechanism 8, and the welding mechanical arm 5 on the first welding position is used to weld the workpiece. The present application combines movement, lifting, and welding in an orderly manner, realizes automatic conveying and welding of the workpiece, has high production efficiency, simple structure, low cost, and is easy to be widely promoted.

[0035] It can be seen from the above embodiments that the automobile welding production line provided by the utility model achieves at least the following beneficial effects:

[0036] The utility model provides an automobile welding production line, which places multiple workpieces on a flat plate in sequence, and transports the workpieces to a first welding position through the lifting action of a lifting mechanism and the movement of a conveying mechanism, and welds the workpieces using a welding robot arm on the first welding position. The application combines movement, lifting, and welding in an orderly manner, realizes automatic conveying and welding of workpieces, has high production efficiency, simple structure, low cost, and is easy to be widely promoted. A guide rail and a slider slidably connected to the guide rail are provided on the frame, the lifting plate is fixedly connected to the flat plate, and the base is fixedly connected to the slider, so that the lifting mechanism can move with the flat plate. Since the processing time of each station is different, in order to ensure that the processing at the next station is completed, a limit detection element is also provided on the guide rail. When it is found that the processing at the next workstation is not completed, while the previous process has been completed and the material is continuously fed, the limit detection element senses the position of the workpiece to realize the positioning function, and the lifting mechanism drives the plate to rise to the predetermined position and disengages from the conveyor, so that the conveyed workpiece stays here. After the processing at the next workstation is completed, the lifting mechanism is lowered and the workpiece is sent to the next process for processing; a barcode scanner is provided on the welding robot arm, and a code recognizable by the barcode scanner is provided on the surface of the workpiece. The barcode scanner is electrically connected to the controller, and the controller controls the corresponding workstation for processing according to the information feedback from the barcode scanner.

[0037] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An automobile welding production line, characterized in that: The machine comprises a frame, on which a first welding position is arranged, a welding robot arm for welding the workpiece on the first welding position, a plurality of flat plates for conveying the workpiece, a lifting mechanism for driving the flat plates to move up and down, and a conveying mechanism for driving the flat plates to convey along a predetermined path; The frame is provided with a guide rail and a slider slidably connected to the guide rail; The guide rail is also provided with a limit position detection element; The welding robot arm is provided with a barcode scanner, the surface of the workpiece is provided with a code recognizable by the barcode scanner, and the barcode scanner is electrically connected to the controller; The lifting mechanism comprises a lifting plate, a lifting assembly and a base which are arranged in sequence from top to bottom; the lifting plate is fixedly connected to the bottom of the flat plate, and the base is fixedly connected to the sliding block.

2. The automobile welding production line according to claim 1, characterized in that: The lifting assembly comprises a lifting cylinder arranged on the base, a cylinder mounting seat is arranged on the top of the lifting cylinder, a floating joint is arranged at the output end of the lifting cylinder, and the lifting plate is fixedly connected to the output end of the lifting cylinder through the floating joint.

3. The automobile welding line according to claim 1, characterized in that: Adjacent positioning blocks are arranged on the flat plate, and a first space formed between the adjacent positioning blocks is used for lifting the workpiece.

4. The automobile welding line according to claim 1, characterized in that: The conveying mechanism comprises a feeding line and a moving cylinder. The moving cylinder drives the feeding line to convey along a predetermined path. Two ends of the feeding line are respectively wound around the frame.

5. The automobile welding production line according to claim 1, characterized in that: A fixing plate is fixedly connected to the side surface of the base, and the fixing plate is connected to the sliding block through screws.

6. The automobile welding production line according to claim 1, characterized in that: The welding robot arm includes a base, a rotating mechanism, a welding frame and a robot arm mechanism; the welding frame is arranged on the base through the rotating mechanism, and the welding frame is provided with a driving mechanism for driving the robot arm mechanism to move; the robot arm mechanism includes a robot arm, a transmission arm is rotatably connected to the robot arm, and a welding device is rotatably connected to the transmission arm; the welding device includes a welding head mounting plate, a plurality of welding head assemblies arranged on the welding head mounting plate, and the welding head assemblies are arranged on the welding head mounting plate.

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