Automobile front and rear bumper assembly line

Abstract

The application belongs to the technical field of assembly line, and discloses an automobile front and rear bumper assembly line, which comprises a floor and a mounting frame fixed to the top of the floor. A first belt conveyor is fixed to the mounting frame. A positioning tool for placing and positioning automobile front or rear bumper components is placed on the conveying belt of the first belt conveyor. A visual detection assembly for detecting defects and missing components of the assembled front or rear bumper is arranged on the floor. The visual detection assembly comprises a fixing frame fixed to the floor and an industrial camera fixed to the fixing frame. A placing box for placing front and rear bumper components is fixed to the floor. According to the application, the assembled bumper can be moved to the position of the visual detection assembly for detection of product defects or missing components, and manual carrying is not required, thereby reducing labor intensity.

Description

Technical Field

[0001] This utility model relates to the field of assembly line technology, and in particular to an assembly line for front and rear bumpers of automobiles. Background Technology

[0002] Car bumpers are typically modular, consisting of the bumper body and mounting brackets on both sides. Automotive parts manufacturers assemble the bumper body and mounting brackets into a single unit during production to facilitate installation on a vehicle.

[0003] Chinese utility model patent CN218536941U discloses an automobile bumper assembly line, which includes an assembly frame and assembly tables located at the top two ends of the assembly frame; each assembly table is provided with a support seat for supporting the mounting bracket of the bumper, and also includes a testing table located outside the assembly frame and not connected to the assembly frame for testing the assembled bumper.

[0004] In the existing car bumper assembly line, after a set of bumpers is assembled at the assembly table, at least two workers are needed to lift the assembled bumper to the inspection table for inspection, which increases the labor intensity. Utility Model Content

[0005] To solve the above problems, this utility model provides an assembly line for the front and rear bumpers of automobiles.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a front and rear bumper assembly line for automobiles, including a floor and a mounting frame fixed to the top of the floor. A first belt conveyor is fixed on the mounting frame. Positioning fixtures for placing and positioning components of the front or rear bumper of the automobile are placed on the conveyor belt of the first belt conveyor. A visual inspection component for detecting defects and missing parts of the assembled front or rear bumper is provided on the floor. The visual inspection component includes a fixed frame fixed on the floor and an industrial camera fixed on the fixed frame. Placement boxes for placing the components of the front and rear bumpers are fixed on the floor.

[0007] By adopting the above technical solution, the workers first place the parts to be assembled in the positioning fixture for positioning, and then use tools to assemble and fix the bumper parts. Then, the first belt conveyor moves the positioning fixture to the bottom of the fixed frame through its conveyor belt. At the same time, the high-definition lens of the industrial camera detects missing parts and defects in the assembled bumper. There is no need for workers to carry the assembled bumper to the fixed frame, which reduces labor intensity.

[0008] Furthermore, a second belt conveyor located below the first belt conveyor is fixed inside the mounting frame, and a third belt conveyor is slidably mounted at both ends of the mounting frame. Multiple positioning fixtures are provided, which are respectively mounted on the conveyor belts of the first belt conveyor and the second belt conveyor. A lifting mechanism for driving the third belt conveyor to rise and fall is provided on the ground. The number of third belt conveyors is equal to the number of lifting mechanism sets, and their positions correspond one-to-one.

[0009] By adopting the above technical solution, after the bumper is inspected, the assembled bumper is removed from the positioning fixture. At this time, the empty positioning fixture is moved to the third belt conveyor on one side by the first belt conveyor. Then, the third belt conveyor is driven down to the position of the second belt conveyor by the lifting mechanism. Next, the positioning fixture is moved to the second belt conveyor by the third belt conveyor. Then, it is moved to the third belt conveyor on the other side by the second belt conveyor. Finally, the empty positioning fixture is moved to the other end of the first belt conveyor by the third belt conveyor on the other side and the lifting mechanism on the other side, so that multiple positioning fixtures can be continuously transported in a cycle, realizing the continuous cyclic processing of the device.

[0010] Furthermore, the lifting mechanism includes a lifting assembly, which includes a lifting frame fixed to the ground and slidably engaged with the third belt conveyor, a connecting block fixed to the third belt conveyor, a driven sprocket rotatably mounted on the lifting frame near the bottom of the lifting frame, a driving sprocket rotatably mounted on the lifting frame near the top of the lifting frame, and a chain meshing with both the driven sprocket and the driving sprocket. The connecting block is fixed to the chain body on the side of the chain near the third belt conveyor. The lifting mechanism also includes a rotating assembly for driving the driving sprocket to rotate.

[0011] By adopting the above technical solution, the rotating component drives the drive sprocket to rotate, thereby causing the chain meshing with the drive sprocket and the driven sprocket meshing with the chain to rotate. This causes the connecting block fixed to the chain and the third belt conveyor fixed to the connecting block to both descend or rise, thus ensuring the normal lifting and lowering of the positioning fixture.

[0012] Furthermore, the rotating assembly includes a drive rod rotatably mounted on the lifting frame, a driven rod rotatably mounted on the lifting frame, and a lifting motor fixed on the lifting frame and driving the drive rod to rotate. The drive sprocket is fixedly sleeved on the drive rod, and the driven sprocket is fixedly sleeved on the driven rod. A guide rail that slides through the frame of the third belt conveyor and slides with the third belt conveyor is provided, and the guide rail is fixed on the lifting frame.

[0013] By adopting the above technical solution, after the lifting motor works, it drives the drive rod to rotate, which in turn drives the drive sprocket fixed to the drive rod and the driven rod fixed to the driven sprocket to rotate, thereby ensuring the normal lifting operation of the device.

[0014] Furthermore, the mounting frame is equipped with multiple sets of automatic control mechanisms, each set of automatic control mechanisms corresponding to an assembly process. The automatic control mechanism includes a control component, which includes a mounting shell fixed on the mounting frame, an insulating shell disposed on the mounting shell, a slide rod that penetrates and slides through the insulating shell, a first metal block fixed on the slide rod and electrically connected to the first belt conveyor, two second metal blocks fixed inside the insulating shell and electrically connected to the first metal blocks, and an arc block fixed on the positioning fixture. The first metal block and the two second metal blocks are in contact with each other. The automatic control mechanism also includes a first reset component for resetting the slide rod and a second reset component for resetting the insulating shell.

[0015] By adopting the above technical solution, during the movement of the positioning fixture, the arc block will move towards the sliding rod. During the contact process of the arc block, the sliding rod will be forced to move away from the arc block, thereby causing the first metal block connected to the sliding rod to move away from the second metal block until the first metal block and the second metal block separate. At this time, the power supply on the first belt conveyor is disconnected, and the conveyor belt on the first belt conveyor stops conveying the positioning fixture. At this time, the positioning fixture is exactly at the work position of the corresponding automatic control mechanism's processing step, thereby realizing the automatic control of the first belt conveyor.

[0016] Furthermore, the sliding rod has a mounting groove at one end inside the insulating shell, and the first reset assembly includes a connecting rod that is slidably disposed in the mounting groove and fixed to the inner side wall of the insulating shell, and a first spring fixed between the connecting rod and the mounting groove.

[0017] By adopting the above technical solution, when the sliding rod moves away from the arc block, the first spring is stressed and gradually contracts due to the limiting effect of the connecting rod. Furthermore, after the components on the positioning fixture are assembled, the insulating shell is pressed downwards, causing the sliding rod connected to the insulating shell to move downwards until it separates from the arc block. At this point, the first spring gradually extends and resets, causing the sliding rod and the first metal block to move towards the arc block and reset. The first metal block then reconnects to the second metal block. At this time, the power to the first belt conveyor is turned on, and the upper conveyor belt of the first belt conveyor carries the completed positioning fixture away from the workstation of this processing step. Simultaneously, the positioning fixture containing the bumper component to be assembled is moved to this workstation to ensure continuous operation of the device.

[0018] Furthermore, the mounting shell has two sliding through holes, and the two ends of the insulating shell are respectively slidably engaged with the two sliding through holes. The second reset assembly includes a second spring fixed between the insulating shell and the bottom wall of the sliding through hole, a reset rod that is slidably engaged with the top of the mounting shell, and a vertical rod fixed in the sliding through hole. The reset rod is fixed to the top of the insulating shell, and the vertical rod is slidably engaged with the insulating shell.

[0019] By employing the above technical solution, pressing down on the reset lever lowers the insulating shell, causing the second spring to contract gradually. Similarly, releasing the reset lever causes the second spring to extend gradually, lifting the insulating shell back to its original position for subsequent use.

[0020] Furthermore, a ball bearing is movably mounted at one end of the slide bar near the arc block.

[0021] By adopting the above technical solution, the setting of the ball bearings transforms the sliding friction between the slide rod and the arc block into rolling friction, thereby reducing the frictional force between the slide rod and the arc block.

[0022] In summary, the present invention has the following beneficial effects: In this application, by setting up a first belt conveyor, the assembled bumper can be moved to the position of the visual detection component for product defect or missing parts detection, without manual handling, thus reducing labor intensity. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram illustrating the internal structure of the mounting bracket in an embodiment of this utility model; Figure 3 This is a schematic diagram illustrating the connection structure between the positioning fixture and the arc block in an embodiment of this utility model; Figure 4 This is a schematic diagram illustrating the connection structure between the mounting bracket and the guide rail in an embodiment of this utility model; Figure 5 This is a cross-sectional schematic diagram of an embodiment of the present invention to highlight the internal structure of the mounting housing; Figure 6 This is a cross-sectional schematic diagram of an embodiment of the present invention used to highlight the internal structure of the insulating shell.

[0024] In the diagram: 1. Mounting frame; 2. First belt conveyor; 3. Positioning fixture; 4. Visual inspection component; 41. Mounting frame; 42. Industrial camera; 5. Second belt conveyor; 6. Third belt conveyor; 7. Lifting mechanism; 71. Lifting assembly; 711. Lifting frame; 712. Connecting block; 713. Driven sprocket; 714. Drive sprocket; 715. Chain; 72. Rotating assembly; 721. Drive rod; 722. Driven rod; 723. Lifting motor; 8. Automatic control mechanism; 81. Control component; 811. Mounting housing; 812. Insulating housing; 813. Slide rod; 814. First metal block; 815. Second metal block; 816. Arc block; 82. First reset component; 821. Connecting rod; 822. First spring; 83. Second reset component; 831. Second spring; 832. Reset rod; 833. Vertical rod; 9. Guide slide rail; 10. Mounting groove; 11. Sliding through hole; 12. Ball bearing; 13. Placement box. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] like Figure 1-6 As shown in the illustration, this application discloses an assembly line for front and rear bumpers of an automobile, including a floor, a mounting frame 1, a visual inspection component 4, a third belt conveyor 6, and a lifting mechanism 7. The mounting frame 1 is fixed to the top of the floor. A first belt conveyor 2 is fixed on the mounting frame 1, and a positioning fixture 3 for placing and positioning components of the front or rear bumper is placed on the conveyor belt of the first belt conveyor 2. The visual inspection component 4 is disposed on the floor and is used to inspect the assembled front or rear bumpers for defects and missing parts. The visual inspection component 4 includes a mounting frame 41 and an industrial camera 42. The mounting frame 41 is fixed to the floor. The industrial camera 42 is fixed to the mounting frame 41, and a placement box 13 for placing the components of the front and rear bumpers is fixed on the floor. First, the workers place the parts to be assembled into the positioning fixture 3 for positioning. Then, the bumper parts are assembled and fixed using tools. Subsequently, the first belt conveyor 2 moves the positioning fixture 3 to the bottom of the fixed frame 41 via its conveyor belt. At the same time, the high-definition lens of the industrial camera 42 is used to detect missing parts and defects in the assembled bumper. This eliminates the need for workers to carry the assembled bumper to the fixed frame 41, reducing labor intensity.

[0027] The mounting frame 1 is fixed with a second belt conveyor 5 located below the first belt conveyor 2. Multiple positioning fixtures 3 are provided, which are respectively set on the conveyor belt of the first belt conveyor 2 and the conveyor belt of the second belt conveyor 5. A third belt conveyor 6 is slidably set at both ends of the mounting frame 1. The number of third belt conveyors 6 is equal to the number of lifting mechanisms 7 and their positions correspond one-to-one. After the bumper is inspected, the assembled bumper is removed from the positioning fixture 3. At this time, the empty positioning fixture 3 is moved to the third belt conveyor 6 on one side by the first belt conveyor 2. Then, the third belt conveyor 6 is driven down to the position of the second belt conveyor 5 by the lifting mechanism 7. Next, the positioning fixture 3 is moved to the second belt conveyor 5 by the third belt conveyor 6. Then, it is moved to the third belt conveyor 6 on the other side by the second belt conveyor 5. Finally, the empty positioning fixture 3 is moved to the other end of the first belt conveyor 2 by the third belt conveyor 6 on the other side and the lifting mechanism 7 on the other side, so that multiple positioning fixtures 3 can be transported in a continuous cycle, realizing the continuous cyclic processing of the device.

[0028] The lifting mechanism 7 is installed on the ground and is used to drive the third belt conveyor 6 to rise and fall. The lifting mechanism 7 includes a lifting component 71 and a rotating component 72. The lifting component 71 includes a lifting frame 711, a connecting block 712, a driven sprocket 713, a driving sprocket 714, and a chain 715. The lifting frame 711 is fixed to the ground and slides in engagement with the third belt conveyor 6. The connecting block 712 is fixed to the third belt conveyor 6. The driven sprocket 713 is rotatably mounted on the lifting frame 711 near the bottom of the lifting frame 711. The driving sprocket 714 is rotatably mounted on the lifting frame 711 near the top of the lifting frame 711. The chain 715 meshes with both the driven sprocket 713 and the driving sprocket 714. The connecting block 712 is fixed to the chain body of the chain 715 on the side near the third belt conveyor 6. The rotating assembly 72 drives the drive sprocket 714 to rotate, which in turn causes the chain 715 meshing with the drive sprocket 714 and the driven sprocket 713 meshing with the chain 715 to rotate. This causes the connecting block 712 fixed to the chain 715 and the third belt conveyor 6 fixed to the connecting block 712 to both rise or fall, thereby ensuring the normal lifting and lowering of the positioning fixture 3.

[0029] The rotating assembly 72 drives the drive sprocket 714 to rotate. The rotating assembly 72 includes a drive rod 721, a driven rod 722, and a lifting motor 723. The drive rod 721 is rotatably mounted on the lifting frame 711. The driven rod 722 is rotatably mounted on the lifting frame 711. The lifting motor 723 is fixed to the lifting frame 711 and drives the drive rod 721 to rotate. The drive sprocket 714 is fixedly sleeved on the drive rod 721, and the driven sprocket 713 is fixedly sleeved on the driven rod 722. A guide rail 9, which slides through the frame of the third belt conveyor 6 and is slidably engaged with it, is fixed to the lifting frame 711. After the lifting motor 723 operates, it drives the drive rod 721 to rotate, which in turn drives the drive sprocket 714 fixed to the drive rod 721 and the driven rod 722 fixed to the driven sprocket 713 to rotate, thus ensuring normal lifting operation of the device.

[0030] An automatic control mechanism 8 is mounted on the mounting frame 1. Multiple sets of automatic control mechanisms 8 are provided, each corresponding to a specific assembly process. The automatic control mechanism 8 includes a control component 81, a first reset component 82, and a second reset component 83. The control component 81 includes a mounting shell 811, an insulating shell 812, a slide rod 813, a first metal block 814, a second metal block 815, and an arc block 816. The mounting shell 811 is fixed to the mounting frame 1 and has two through-holes 11. The insulating shell 812 is mounted on the mounting shell 811, with both ends slidingly engaging with the two through-holes 11. The slide rod 813 is through-mounted and slidably engaged with the insulating shell 812, with a mounting groove 10 at one end inside the insulating shell 812. The first metal block 814 is fixed to the slide rod 813 and electrically connected to the first belt conveyor 2. The second metal block 815 is fixed inside the insulating shell 812 and electrically connected to the first metal block 814. Two second metal blocks 815 are provided, and an arc block 816 is fixed on the positioning fixture 3. The first metal block 814 is in contact with both second metal blocks 815. During the movement of the positioning fixture 3, the arc block 816 will move towards the slide rod 813. During the contact of the arc block 816, the slide rod 813 will be forced to move away from the arc block 816, thereby causing the first metal block 814 connected to the slide rod 813 to move away from the second metal block 815 until the first metal block 814 separates from the second metal block 815. At this time, the power supply to the first belt conveyor 2 is disconnected, and the conveyor belt on the first belt conveyor 2 stops conveying the positioning fixture 3. At this time, the positioning fixture 3 is exactly at the work position of the corresponding automatic control mechanism 8, thereby realizing the automatic control of the first belt conveyor 2.

[0031] The first reset assembly 82 is used to reset the slide bar 813. The first reset assembly 82 includes a connecting rod 821 and a first spring 822. The connecting rod 821 is slidably disposed in the mounting groove 10 and fixed to the inner side wall of the insulating shell 812. The first spring 822 is fixed between the connecting rod 821 and the mounting groove 10. When the slide bar 813 moves away from the arc block 816, the first spring 822 is subjected to force and gradually contracts due to the limiting effect of the connecting rod 821. Furthermore, after the components on the positioning fixture 3 are assembled, the insulating shell 812 is pressed downwards, thereby causing the sliding rod 813 connected to the insulating shell 812 to move downwards until the sliding rod 813 separates from the arc block 816. At this time, the first spring 822 gradually extends and returns to its original position, thereby causing the sliding rod 813 and the first metal block 814 to move towards the arc block 816 and return to their original positions. The first metal block 814 is then connected to the second metal block 815 again. At this time, the power supply of the first belt conveyor 2 is turned on, and the upper conveyor belt of the first belt conveyor 2 drives the finished positioning fixture 3 away from the workstation of this processing step. At the same time, the positioning fixture 3 with the bumper component to be assembled is moved to the workstation to ensure the continuous operation of the device.

[0032] The second reset assembly 83 is used to reset the insulating shell 812. The second reset assembly 83 includes a second spring 831, a reset rod 832, and a vertical rod 833. The second spring 831 is fixed between the insulating shell 812 and the bottom wall of the sliding through hole 11. The reset rod 832 is slidably fitted through the top of the mounting shell 811, and the vertical rod 833 is fixed inside the sliding through hole 11. The reset rod 832 is fixed to the top of the insulating shell 812, and the vertical rod 833 is slidably fitted through the insulating shell 812. Pressing down the reset rod 832 lowers the insulating shell 812, causing the second spring 831 to contract gradually. Similarly, releasing the reset rod 832 causes the second spring 831 to gradually extend, lifting the insulating shell 812 and resetting it for subsequent use.

[0033] A ball bearing 12 is movably mounted on one end of the slide rod 813 near the arc block 816. The ball bearing 12 converts the sliding friction between the slide rod 813 and the arc block 816 into rolling friction, thereby reducing the friction between the slide rod 813 and the arc block 816.

[0034] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A car front and rear bumper assembly line, characterized by: The system includes a floor and a mounting frame (1) fixed to the top of the floor. A first belt conveyor (2) is fixed on the mounting frame (1). A positioning fixture (3) for placing and positioning the components of the front or rear bumper of the car is placed on the conveyor belt of the first belt conveyor (2). A visual inspection component (4) for detecting defects and missing parts of the assembled front or rear bumper is provided on the floor. The visual inspection component (4) includes a fixed frame (41) fixed on the floor and an industrial camera (42) fixed on the fixed frame (41). A placement box (13) for placing the components of the front and rear bumper is fixed on the floor.

2. The automotive front and rear bumper assembly line according to claim 1, characterized in that: The mounting frame (1) is fixed with a second belt conveyor (5) located below the first belt conveyor (2). Multiple positioning fixtures (3) are provided, and the multiple positioning fixtures (3) are respectively set on the conveyor belt of the first belt conveyor (2) and the conveyor belt of the second belt conveyor (5). A third belt conveyor (6) is slidably set at both ends of the mounting frame (1). A lifting mechanism (7) for driving the third belt conveyor (6) to rise and fall is provided on the ground. The number of third belt conveyors (6) is equal to the number of lifting mechanisms (7) and their positions correspond one-to-one.

3. The automotive front and rear bumper assembly line according to claim 2, characterized in that: The lifting mechanism (7) includes a lifting assembly (71), which includes a lifting frame (711) fixed on the ground and slidingly engaged with the third belt conveyor (6), a connecting block (712) fixed on the third belt conveyor (6), a driven sprocket (713) rotatably disposed on the lifting frame (711) near the bottom of the lifting frame (711), a driving sprocket (714) rotatably disposed on the lifting frame (711) near the top of the lifting frame (711), and a chain (715) meshing with both the driven sprocket (713) and the driving sprocket (714). The connecting block (712) and the chain (715) are fixed to the chain body on the side of the chain near the third belt conveyor (6). The lifting mechanism (7) also includes a rotating assembly (72) for driving the driving sprocket (714) to rotate.

4. The automotive front and rear bumper assembly line according to claim 3, characterized in that: The rotating assembly (72) includes an active rod (721) rotatably mounted on the lifting frame (711), a driven rod (722) rotatably mounted on the lifting frame (711), and a lifting motor (723) fixed on the lifting frame (711) and driving the active rod (721) to rotate. The active sprocket (714) is fixedly sleeved on the active rod (721), and the driven sprocket (713) is fixedly sleeved on the driven rod (722). A guide rail (9) that slides through the frame of the third belt conveyor (6) and slides with the third belt conveyor (6) is provided. The guide rail (9) is fixed on the lifting frame (711).

5. The automotive front and rear bumper assembly line according to claim 1, characterized in that: The mounting frame (1) is provided with multiple sets of automatic control mechanisms (8), each set of automatic control mechanisms (8) corresponds to an assembly process. The automatic control mechanism (8) includes a control component (81), which includes a mounting shell (811) fixed on the mounting frame (1), an insulating shell (812) set on the mounting shell (811), a slide rod (813) that is slidably engaged with the insulating shell (812), and a component that is fixed on the slide rod (813) and electrically connected to the first belt conveyor (2). The automatic control mechanism (8) includes a first metal block (814) connected by a circuit, two second metal blocks (815) fixed inside the insulating shell (812) and connected to the first metal block (814) by a circuit, and an arc block (816) fixed on the positioning fixture (3). The first metal block (814) and the two second metal blocks (815) are in contact with each other. The automatic control mechanism (8) also includes a first reset assembly (82) for resetting the slide bar (813) and a second reset assembly (83) for resetting the insulating shell (812).

6. The automotive front and rear bumper assembly line according to claim 5, characterized in that: The slide bar (813) has an installation groove (10) at one end inside the insulating shell (812). The first reset assembly (82) includes a connecting rod (821) that is slidably disposed in the installation groove (10) and fixed to the inner side wall of the insulating shell (812), and a first spring (822) fixed between the connecting rod (821) and the installation groove (10).

7. The automotive front and rear bumper assembly line according to claim 6, characterized in that: The mounting shell (811) has two sliding through holes (11) through it. The two ends of the insulating shell (812) are respectively slidably engaged with the two sliding through holes (11). The second reset assembly (83) includes a second spring (831) fixed between the insulating shell (812) and the bottom wall of the sliding through hole (11), a reset rod (832) through the top of the mounting shell (811) and slidably engaged, and a vertical rod (833) fixed in the sliding through hole (11). The reset rod (832) is fixed to the top of the insulating shell (812), and the vertical rod (833) through the insulating shell (812) and slidably engaged.

8. The automotive front and rear bumper assembly line according to claim 5, characterized in that: A ball bearing (12) is movably mounted on one end of the slide bar (813) near the arc block (816).

Images