Automobile door production line

Abstract

The application relates to the field of automobile manufacturing, in particular to an automobile door production line, which aims to solve the problem of increasing production cost caused by the need of rework or direct scrapping due to unqualified detection, and comprises a front door installation motor module, the front door installation motor module comprises an installation workpiece bottom plate, a rope winding detection piece and a screw in-place detection piece, the installation workpiece bottom plate is installed on a workbench, the installation workpiece bottom plate is provided with a motor placement area and a door plate placement area, the motor placement area is located in the door plate placement area, the screw in-place detection piece is arranged on the installation workpiece bottom plate in the motor placement area, and the rope winding detection piece is arranged on the installation workpiece bottom plate outside the door plate placement area. The application has the effect of reducing the production cost of automobile doors.

Description

Technical Field

[0001] This application relates to the automotive manufacturing sector, and in particular to automotive door production lines. Background Technology

[0002] Automotive door production lines are a crucial component of modern automobile manufacturing. With the rapid development of the automotive industry, the application of automated production and assembly lines is becoming increasingly widespread. These production lines not only improve production efficiency but also significantly enhance product quality and consistency. Traditional automotive door production lines typically involve multiple processes, such as parts handling, installation, and inspection.

[0003] Installation and testing are usually separated. If the test fails, the work needs to be reworked or the item needs to be scrapped. This method increases the labor required for production, thus increasing production costs, and therefore needs to be improved. Summary of the Invention

[0004] In order to reduce the production cost of car doors, this application provides a car door production line.

[0005] The automotive door production line provided in this application adopts the following technical solution:

[0006] An automotive door production line includes a front door motor mounting module. The front door motor mounting module includes a mounting workpiece base plate, a rope winding detection component, and a screw positioning detection component. The mounting workpiece base plate is mounted on a workbench and has a motor placement area and a door panel placement area. The motor placement area is located within the door panel placement area. The screw positioning detection component is disposed on the mounting workpiece base plate and located within the motor placement area. The rope winding detection component is disposed on the mounting workpiece base plate and located outside the door panel placement area.

[0007] By adopting the above technical solutions, the automotive door production line has achieved automated inspection and installation during the front door installation process, reducing manual intervention and improving production efficiency. Specifically, the design of the motor placement area and door panel placement area on the mounting workpiece base plate makes the installation position of the front door more precise. The screw positioning detection device ensures the correct installation and inspection of screws, while the rope winding detection device can compensate for the inconvenience of inspection during rope winding installation, thereby avoiding rework or scrap due to improper installation and significantly reducing production costs.

[0008] Preferably, the mounting base plate is provided with a pressing member, which is located on the mounting base plate and outside the door panel placement area. The pressing member can press and fix the front door to the mounting base plate.

[0009] By adopting the above technical solution, the pressing component can firmly press and fix the front door when it is placed on the mounting workpiece base plate, preventing the front door from shifting during subsequent operations. This ensures the stability and positional accuracy of the front door, improving the reliability of the production process and the consistency of the products. At the same time, the pressing component simplifies the front door fixing process, reduces manual intervention, and lowers production costs.

[0010] Preferably, both the screw positioning detection component and the pressing component are electrically connected to the controller. After the screw positioning detection component detects that the screw is screwed in place, it sends a positioning signal to the controller. The controller receives the positioning signal and controls the pressing component to contact and press the front door.

[0011] By adopting the above technical solution, automatic detection and pressing fixation after the screw is tightened in place are realized, ensuring the correct installation of the screw, avoiding the problem of the front door loosening due to the screw not being tightened, improving the reliability and safety of the production process, and reducing the increase in production costs caused by rework or scrap.

[0012] Preferably, a screw feeding assembly is provided on one side of the mounting workpiece base plate, and a linkage synchronization assembly is provided between the screw feeding assembly and the mounting workpiece base plate. When the front door is placed on the mounting workpiece base plate, the linkage synchronization assembly controls the screw feeding assembly to move towards the front door so as to feed the screw into the screw hole of the front door.

[0013] By adopting the above technical solution, the linkage and synchronization component between the screw feeding assembly and the mounting workpiece base plate can automatically control the screw feeding assembly to move closer to the front door when the front door is placed on the mounting workpiece base plate, ensuring that the screws are accurately fed into the screw holes of the front door; and when the front door is removed after installation, the linkage and synchronization component can move the entire screw feeding assembly upward to reduce collisions with the front door. This design reduces manual operation in picking up and placing screws, improves the accuracy and efficiency of screw installation, and further reduces production costs.

[0014] Preferably, the screw feeding assembly includes a storage frame, a feeding frame, and multiple feeding channels. The storage frame is mounted on a workbench, and a flexible connection is formed between the storage frame and the feeding frame. A vibratory feeder is provided at the bottom of the storage frame to vibrate the screws in the storage frame into the feeding frame. The multiple feeding channels are connected to the end of the feeding frame away from the storage frame, and the end of the multiple feeding channels away from the feeding frame can be moved to above the screw holes of the front door through a linkage synchronization component. The feeding frame is provided with multiple partitions to divide the feeding frame into multiple areas, each area corresponding to a feeding channel.

[0015] By adopting the above technical solution, the vibratory feeder ensures a stable screw supply. The design of multiple feeding channels allows screws to be accurately aligned with the screw holes on the front door, achieving efficient and automated screw feeding, reducing manual intervention, and lowering production costs. The partition design within the feeding frame ensures the orderly arrangement of screws, guaranteeing screw supply to each channel, further improving production reliability and efficiency.

[0016] Preferably, the feeding channel includes a channel body and a limiting member. Both the channel body and the feeding frame are inclined, with the height of the end of the channel body away from the feeding frame being lower than the height of the other end. A turning elongated hole and a positioning circular hole are formed on the bottom wall of the channel body at the end away from the feeding frame. The turning elongated hole and the positioning circular hole are connected. The turning elongated hole is located between the positioning circular hole and the feeding frame. The width of the turning elongated hole is less than the diameter of the screw head but greater than the diameter of the screw thread segment. The diameter of the positioning circular hole is equal to the diameter of the screw head. The screw slides along the channel body, rotates at the turning elongated hole, and finally… The screw head is positioned upwards at the positioning hole, and the end of the screw thread is located inside the screw hole of the front door. Each feed frame is equipped with a screw guide between each partition, which guides the screw to move along the feed channel to the turning hole, and then moves to the positioning hole after turning through the turning hole. Limiting components are respectively located on the channel body between the turning hole and the positioning hole, at the end of the turning hole furthest from the positioning hole. These limiting components restrict the screw from moving towards the positioning hole or towards the turning hole. The limiting components are connected to a linkage synchronization component to control whether the screw is restricted at the limiting component.

[0017] By adopting the above technical solution, automatic screw feeding and precise positioning are achieved. Specifically, the inclined design of the channel body and the feeding frame ensures that the screw slides smoothly to the designated position under gravity. The design of the steering elongated hole and the positioning round hole allows the screw to achieve precise steering during sliding, that is, the screw changes from an inclined downward direction to a vertical downward direction under gravity, ensuring that the screw head is upward and accurately enters the screw hole of the front door. The screw guide further ensures the correct posture of the screw entering the channel body. The combined use of the limiting component and the linkage synchronization component effectively controls the movement path of the screw, preventing the screw from entering the positioning round hole prematurely, thereby improving the reliability and efficiency of assembly and reducing production costs.

[0018] Preferably, the screw guide includes several guide strip groups, one end of each guide strip group is connected to the inner wall of the feeding frame along its length, and the other end has a lowering gap with the feeding frame. The several guide strip groups are arranged sequentially along the direction close to the feeding channel, and the lowering gaps formed by adjacent guide strip groups and the feeding frame are respectively located on both sides of the feeding frame. A guide elongated hole is pre-set on each guide strip group, and the guide elongated hole is arranged along the length direction of the guide strip group. The width of the guide elongated hole is smaller than the head diameter of the screw and larger than the thread diameter of the screw.

[0019] By adopting the above technical solution, the design of the guide component enables the screw to be accurately guided to the predetermined position during the feeding process, ensuring that the screw can smoothly enter the feeding channel and maintain the correct posture, thereby improving the reliability and accuracy of screw feeding, reducing the risk of screw jamming and misalignment, and further improving production efficiency and quality.

[0020] Preferably, the linkage synchronization component includes a first linkage rod, a second linkage rod, and a connecting rod. A linkage hole is provided on the mounting workpiece base plate. The first linkage rod is inserted into the linkage hole, and a spring connected to the first linkage rod is embedded in the bottom of the linkage hole. The second linkage rod is fixedly connected to the bottom of the channel body. The end of the second linkage rod away from the channel body is fixedly connected to the connecting rod. The end of the connecting rod away from the second linkage rod penetrates the side wall of the mounting workpiece base plate and is fixedly connected to the first linkage rod. The middle part of the connecting rod slides on the mounting workpiece base plate. A connecting hole communicating with the linkage hole is provided on the mounting workpiece base plate, and the connecting rod is inserted into the connecting hole. The first linkage rod can be pressed by the front door. The first and second linkage rods rise or fall synchronously through the connecting rod. The limiting member is linked with the connecting rod, and the two limiting members alternately limit the screw located within the channel body.

[0021] By adopting the above technical solution, precise linkage between the screw feeding assembly and the mounting workpiece base plate is achieved. Specifically, when the front door is placed on the mounting workpiece base plate and the first linkage rod is pressed, the first and second linkage rods rise or fall synchronously through the connecting rod, ensuring that the channel body can stop at the appropriate height, thereby accurately feeding the screw into the screw hole of the front door. At the same time, the limiting component is connected to the connecting rod, which can effectively control the conduction state of the channel body, preventing the screw from falling from the positioning hole when the front door is not correctly placed on the mounting workpiece base plate, further improving the stability and reliability of the production process and reducing production costs.

[0022] Preferably, the limiting component includes a limiting disc, a limiting torsion spring, and a limiting rope. The limiting disc is rotatably connected to the edge of the channel body. The channel body has a limiting hole for the limiting disc to pass through, and the length of the limiting hole is equal to the radius of the limiting disc. The limiting torsion spring is installed at the pivot connecting the limiting disc and the channel body. One end of the limiting rope is connected to the limiting disc, and the other end passes around the connecting rod and is connected to the side wall of the mounting workpiece base plate. The limiting discs of two limiting components on the same channel body are connected by a shaft to achieve synchronous rotation. The limiting disc has a through notch, which allows the screw to pass smoothly when it is located inside the channel body.

[0023] By adopting the above technical solution, the design of the limiting component enables the screw to be effectively controlled during the conveying process, preventing the screw from falling from the positioning hole when the front door is not correctly placed on the mounting workpiece base plate, thus ensuring the accurate positioning of the screw.

[0024] Preferably, there is a gap between the circular edge of the limiting disc and the threaded section of the screw, and the limiting disc can contact the screw head.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The automotive door production line has achieved automated inspection and installation during the front door assembly process, reducing manual intervention and improving production efficiency. Specifically, the design of the motor placement area and door panel placement area on the mounting workpiece base plate makes the installation position of the front door more precise. The screw positioning detection device ensures the correct installation and inspection of screws, while the rope winding detection device can compensate for the inconvenience of inspection during rope winding installation, thereby avoiding rework or scrap due to improper installation and significantly reducing production costs.

[0027] 2. Automated screw feeding and precise positioning were achieved. Specifically, the inclined design of the channel body and feeding frame ensured that the screws slid smoothly to the designated position under gravity. The design of the steering elongated hole and positioning round hole enabled the screws to achieve precise steering during sliding, that is, the screws changed from an inclined downward direction to a vertical downward direction under gravity, ensuring that the screw head was facing upward and accurately entered the screw hole of the front door. The screw guide further ensured the correct posture of the screw entering the channel body. The combined use of the limiting component and the linkage synchronization component effectively controlled the movement path of the screws, preventing the screws from entering the positioning round hole prematurely, thereby improving the reliability and efficiency of assembly and reducing production costs.

[0028] 3. Precise linkage between the screw feeding assembly and the mounting workpiece base plate is achieved. Specifically, when the front door is placed on the mounting workpiece base plate and the first linkage rod is pressed, the first and second linkage rods rise or fall synchronously via the connecting rod, ensuring that the channel body stops at the appropriate height, thereby accurately feeding the screw into the screw hole of the front door. Simultaneously, the limiting component, connected to the connecting rod, effectively controls the conduction state of the channel body, preventing the screw from falling from the positioning hole if the front door is not correctly placed on the mounting workpiece base plate, further improving the stability and reliability of the production process and reducing production costs. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the automobile door production line in Implementation Scheme 1 of this application.

[0030] Figure 2 This is a schematic diagram of the structure for installing the workpiece base plate in Implementation Scheme 1 of this application.

[0031] Figure 3 This is a schematic diagram of the automobile door production line in Implementation Scheme 2 of this application.

[0032] Figure 4 This is a structural schematic diagram of the screw feeding assembly used in Implementation Scheme 2 of this application.

[0033] Figure 5 yes Figure 4 An enlarged diagram of A in the diagram.

[0034] Figure 6 This is a structural diagram in Implementation Scheme 2 of this application, which illustrates the connection relationship between the linkage synchronization component and the channel body.

[0035] Figure 7 This is a cross-sectional view in Implementation Scheme 2 of this application, used to illustrate the connection relationship between the linkage synchronization component and the channel body.

[0036] Explanation of reference numerals in the attached drawings: 1. Front door motor module; 2. Workpiece mounting base plate; 21. Linkage hole; 22. Spring; 23. Connecting hole; 3. Rope winding detection component; 4. Screw positioning detection component; 5. Pressing component; 6. Screw feeding assembly; 61. Storage frame; 62. Feeding frame; 621. Partition; 63. Feeding channel; 631. Channel body; 632. Turning elongated hole; 633. Positioning round hole; 634. Limiting hole; 7. Linkage synchronization assembly; 71. First linkage rod; 72. Second linkage rod; 73. Connecting rod; 8. Screw guide component; 81. Guide strip assembly; 811. Guide elongated hole; 82. Lower gap; 9. Limiting component; 91. Limiting round piece; 911. Through notch; 92. Limiting rope; 10. Front door. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0038] This application discloses an automobile door production line.

[0039] Example 1

[0040] Reference Figure 1 and Figure 2 The automotive door production line provided in this application includes a front door motor mounting module 1. The front door motor mounting module 1 includes a mounting workpiece base plate 2, a rope winding detection component 3, and a screw positioning detection component 4. The mounting workpiece base plate 2 is mounted on a workbench and has a motor placement area and a door panel placement area. The motor placement area is located within the door panel placement area. The screw positioning detection component 4 is set on the mounting workpiece base plate 2 and located within the motor placement area. The rope winding detection component 3 is set on the mounting workpiece base plate 2 and located outside the door panel placement area.

[0041] The design of the motor placement area and door panel placement area on the mounting base plate 2 allows for more precise installation of the front door 10. The screw placement detection component 4 ensures correct screw installation and detection, while the rope winding detection component 3 compensates for inconvenient detection during rope winding installation, thus avoiding rework or scrap due to improper installation and significantly reducing production costs. The automotive door production line achieves automated detection and installation of the front door 10, reducing manual intervention and improving production efficiency.

[0042] The rope winding detection element 3 is installed on the base plate 2 of the mounting workpiece outside the door panel placement area to detect the rope winding status of the front door 10. The rope winding detection element 3 can be a pressure sensor, capable of detecting whether the rope is wound in the correct sequence to ensure correct winding. Alternatively, a magnetic induction sensor can be used as an alternative, which can also detect the rope winding status.

[0043] The screw positioning detection element 4 is mounted on the workpiece base plate 2 and located within the motor placement area to detect whether the screw is fully screwed in. The screw positioning detection element 4 can be a proximity switch capable of detecting the screw's tightening status; the proximity switch will send a signal when the screw is fully screwed in. Alternatively, a photoelectric sensor or a pressure sensor can be used as an alternative, which can also detect the screw's tightening status.

[0044] Reference Figure 1 and Figure 2A pressing component 5 is provided on the mounting base plate 2, located outside the door panel placement area. The pressing component 5 includes a cylinder and a pressure plate. The cylinder is mounted on the mounting base plate 2 and connected to a compressed air source via an air pipe, capable of generating sufficient thrust. The pressure plate is rotatably mounted on the piston rod of the cylinder and can be made of metal with a smooth surface to prevent scratching the front door 10. When the cylinder operates, the pressure plate moves downward, firmly pressing the front door 10 onto the mounting base plate 2, ensuring the stability of the front door 10 during installation.

[0045] Reference Figure 1 and Figure 2 Both the screw positioning detection component 4 and the pressing component 5 are electrically connected to the controller, which can be a PLC controller. When the screw positioning detection component 4 detects that the screw is screwed in place, it sends a positioning signal to the controller. The controller receives the positioning signal and controls the pressing component 5 to release the pressure on the front door 10.

[0046] The implementation principle of an automobile door production line according to Embodiment 1 of this application is as follows: The operator places the motor and the front door 10 to be installed on the mounting workpiece base plate 2 in sequence. At this time, the rope winding detection component 3 can detect whether the rope is wound in the correct order. At the same time, the operator pre-places the screw in the screw hole of the front door 10. The operator controls the automatic screw gun to screw the screw pre-placed in the screw hole of the front door 10 into the screw hole. When the screw positioning detection component 4 detects that the screw has been screwed in place, it sends a positioning signal to the controller. The controller receives the positioning signal and controls the pressing component 5 to release the pressing on the front door 10. The operator removes the front door 10 after the motor is installed and places the motor and the front door 10 to be installed on the mounting workpiece base plate 2 in sequence, and repeats the above operation. The design of the motor placement area and door panel placement area on the mounting base plate 2 allows for more precise installation of the front door 10. The screw placement detection component 4 ensures correct screw installation and detection, while the rope winding detection component 3 compensates for the inconvenience of detection during rope winding installation, thus avoiding rework or scrap due to improper installation and significantly reducing production costs. The automotive door production line achieves automated detection and installation of the front door 10, reducing manual intervention and improving production efficiency.

[0047] Example 2

[0048] The difference between this embodiment and Embodiment 1 is that: (Refer to...) Figure 3 A screw feeding assembly 6 is provided on one side of the mounting base plate 2. A linkage synchronization assembly 7 is provided between the screw feeding assembly 6 and the mounting base plate 2. The front door 10 is placed on the mounting base plate 2. The linkage synchronization assembly 7 controls the screw feeding assembly 6 to move towards the front door 10 so as to feed the screw into the screw hole of the front door 10.

[0049] The linkage and synchronization component 7 between the screw feeding assembly 6 and the mounting base plate 2 automatically controls the screw feeding assembly 6 to move closer to the front door 10 when the front door 10 is placed on the mounting base plate 2, ensuring that the screws are accurately fed into the screw holes of the front door 10. When the front door 10 is removed after installation, the linkage and synchronization component 7 moves the entire screw feeding assembly 6 upwards to reduce collisions with the front door 10. This design reduces manual operation in picking up and placing screws, improves the accuracy and efficiency of screw installation, and further reduces production costs.

[0050] Reference Figure 3 and Figure 4 The screw feeding assembly 6 includes a storage frame 61 and a feeding frame 62. The storage frame 61 is installed on the workbench and is used to store a large number of screws. A vibrating plate is provided at the bottom of the storage frame 61, which can vibrate the screws in the storage frame 61 to the feeding frame 62.

[0051] The storage frame 61 is flexibly connected to the loading frame 62 on the side near the mounting base plate 2. In this embodiment, the flexible connection is made of elastic plastic to connect the screw outlet of the storage frame 61 and the screw inlet of the loading frame 62.

[0052] The feeding frame 62 has multiple partitions 621 integrally formed or snap-fitted inside, dividing the feeding frame 62 into multiple areas. A feeding channel 63 is fixedly installed in each area of ​​the feeding frame 62. In this embodiment, the feeding frame 62 is divided into three areas by two partitions 621, and the three areas of the feeding frame 62 correspond to three feeding channels 63. The multiple feeding channels 63 are connected to the end of the feeding frame 62 away from the storage frame 61. The end of the multiple feeding channels 63 away from the feeding frame 62 can be moved above the screw holes of the front door 10 via the linkage synchronization component 7, at which point the feeding frame 62 and the feeding channels 63 move synchronously.

[0053] Reference Figure 3 and Figure 4Each feed frame 62 is equipped with a screw guide 8 between each partition 621. The screw guide 8 guides the screws so that they can move along the feed channel 63 into the screw holes of the front door 10. The screw guide 8 includes several guide strip groups 81, each guide strip group 81 having a pre-set guide elongated hole 811. The guide elongated hole 811 is set along the length direction of the guide strip group 81, and its width is smaller than the diameter of the screw head but larger than the diameter of the screw thread. One end of the guide strip group 81 is connected to the inner wall of the feed frame 62, and the other end has a lowering gap with the feed frame 62. The length direction of each guide strip group 81 is perpendicular to the length direction of the feed channel 63. Several guide strip groups 81 are arranged sequentially in the feed frame 62 along the direction close to the feed channel 63. The lowering gaps formed by adjacent guide strip groups 81 and the feed frame 62 are located on both sides of the feed frame 62, so that the multiple lowering gaps are staggered.

[0054] In order to ensure that the feeding frame 62 can smoothly feed the screws into the feeding channel 63, each guide bar group 81 is inclined downward in the direction of the downward gap formed between the guide bar group 81 and the feeding frame 62, so that the screws can move on the guide bar group 81 in the direction of the downward gap under the action of gravity.

[0055] The screw is vibrated by the vibrating plate and enters the feeding frame 62 through the storage frame 61. At this time, the threaded section of the screw is inserted into the guide hole 811, and the head of the screw rests on the guide strip group 81. Under the action of gravity, the screw moves in the direction of the downward gap and slides into the adjacent guide strip group 81 at the downward gap. Finally, it slides from the feeding frame 62 to the feeding channel 63 near the downward gap.

[0056] Reference Figure 4 and Figure 5 The feeding channel 63 includes a channel body 631. Both the channel body 631 and the feeding frame 62 are inclined. The inclination direction is downward from the feeding frame 62 towards the channel body 631, that is, the height of the end of the channel body 631 away from the feeding frame 62 is lower than the height of the other end.

[0057] A turning elongated hole 632 and a positioning round hole 633 are provided at the end of the channel body 631 away from the feeding frame 62 and on the bottom wall of the channel body 631. The turning elongated hole 632 and the positioning round hole 633 are connected. The turning elongated hole 632 is located between the positioning round hole 633 and the feeding frame 62. The width of the turning elongated hole 632 is smaller than the diameter of the screw head and larger than the diameter of the screw thread section. The diameter of the positioning round hole 633 is equal to the diameter of the screw head.

[0058] The screw slides through the feeding frame 62 into the channel body 631 and slides along the length of the channel body 631. When the screw slides to the turning hole 632, it rotates downward under the action of gravity. At this time, the threaded section of the screw passes through the turning hole 632, and finally forms a screw head facing upward and resting on the channel body 631. Finally, under the action of gravity, it moves from the turning hole 632 to the positioning hole 633 along the length of the channel body 631. At this time, the end of the screw threaded section is just located in the screw hole of the front door 10, and the inner wall of the positioning hole 633 can restrict the screw and prevent the screw from tilting.

[0059] Under the influence of gravity, the sliding of each screw is continuous. In order to stop the screw from sliding during the operator's replacement of the front door 10, the channel body 631 is provided with a limiter 9 at the end of the steering elongated hole 632 and the positioning round hole 633, and at the end of the steering elongated hole 632 away from the positioning round hole 633. The limiter 9 can restrict the screw from moving towards the positioning round hole 633. The limiter 9 is connected to the linkage synchronization component 7 to control whether the channel body 631 is connected at the limiter 9.

[0060] The limiting component 9 includes a limiting disc 91, a limiting torsion spring, and a limiting rope 92. The limiting disc 91 is rotatably connected to the edge of the channel body 631. The channel body 631 has a limiting hole 634 for the limiting disc 91 to pass through. The length of the limiting hole 634 is equal to the radius of the limiting disc 91. The limiting torsion spring is installed at the pivot connecting the limiting disc 91 and the channel body 631. One end of the limiting rope 92 is connected to the limiting disc 91, and the other end is linked to the linkage synchronization component 7. The limiting discs 91 of the two limiting components 9 on the same channel body 631 are connected by a shaft to achieve synchronous rotation. The limiting disc 91 has a through notch 911, which is a quarter of a virtual circle of the limiting disc 91. When the through notch 911 is inside the channel body 631, the screw can pass through smoothly. There is a gap between the circular edge of the limiting disc 91 and the threaded section of the screw, allowing the limiting disc 91 to contact the screw head.

[0061] To prevent multiple screws from sliding continuously to the positioning hole 633, the channel notches of the two limiting discs 91 are staggered and connected to the channel body 631; the length of each turning elongated hole 632 is customized according to the center of gravity position under different screw specifications.

[0062] Reference Figure 4 , Figure 6 and Figure 7The linkage synchronization component 7 includes a first linkage rod 71, a second linkage rod 72, and a connecting rod 73. A linkage hole 21 is provided on the mounting workpiece base plate 2. The first linkage rod 71 is inserted into the linkage hole 21. A spring 22 connected to the linkage hole 21 is embedded in the bottom of the linkage hole 21. In this embodiment, the spring 22 is a spring, with one end fixedly connected to the first linkage rod 71 and the other end connected to the mounting workpiece base plate 2. The second linkage rod 72 is fixedly connected to the bottom of the channel body 631. The end of the second linkage rod 72 away from the channel body 631 is fixedly connected to the connecting rod 73. The end of the connecting rod 73 away from the second linkage rod 72 passes through the side wall of the mounting workpiece base plate 2 and is fixedly connected to the first linkage rod 71. The middle part of the connecting rod 73 slides on the mounting workpiece base plate 2. The mounting workpiece base plate 2 has a connecting hole 23 that communicates with the linkage hole 21. The connecting rod 73 is inserted into the connecting hole 23. A spring 22 connected to the connecting rod 73 is also embedded in the bottom of the connecting hole 23. In this embodiment, the spring 22 is a spring. One end of the spring is fixedly connected to the connecting rod 73 and the other end is connected to the mounting workpiece base plate 2. The first linkage rod 71 can be pressed by the front door 10. The first linkage rod 71 and the second linkage rod 72 rise or fall synchronously through the connecting rod 73.

[0063] The limiting rope 92 of the limiting disc 91 near the loading frame 62 passes around the connecting rod 73 and is connected to the side wall of the mounting workpiece base plate 2. The limiting disc 91 near the positioning hole 633 is connected to the limiting disc 91 near the loading frame 62 through the shaft.

[0064] The implementation principle of an automobile door production line in Embodiment 2 of this application is as follows: The operator places the front door 10 on the mounting workpiece base plate 2. The first linkage rod 71 is pressed by the front door 10. The first linkage rod 71 and the second linkage rod 72 descend synchronously through the connecting rod 73. At this time, the limiting rope 92 is pressed down, the limiting disc 91 rotates, and the through notch 911 located at the positioning hole 633 gradually connects with the channel body 631. The through notch 911 located at the turning long hole 632 gradually misaligns with the channel of the channel body 631. At this point, the only screw located at the turning hole 632 is turned due to gravity. The threaded section of the screw passes through the turning hole 632, and the head of the screw rests on the channel body 631. Finally, under the action of gravity, it moves along the length of the channel body 631 from the turning hole 632 to the positioning hole 633. At this point, the end of the threaded section of the screw is exactly at the opening of the threaded hole of the front door 10. At this point, the inner wall of the positioning hole 633 prevents the screw from being excessively misaligned. The operator uses an automatic screwdriver. Tighten the screws located in the positioning holes 633 into the screw holes of the front door 10; after all three screw holes have been tightened, the pressing piece 5 releases its pressure on the front door 10, and the front door 10 with the motor installed is removed by the operator. At this time, under the action of the spring 22, the connecting rod 73 drives the first linkage rod 71 and the second linkage rod 72 to rise. The second linkage rod 72 drives the channel body 631 and the feeding frame 62 to rise. At this time, the end of the feeding frame 62 near the storage frame 61 contacts the storage frame 61, and at the same time, the vibration under the storage frame 61... The moving plate is activated so that the screws in the storage box 61 can enter the loading box 62; at this time, due to the rise of the connecting rod 73, the two limiting discs 91 gradually rotate, the through notch 911 located at the positioning hole 633 gradually misaligns with the channel body 631, and the through notch 911 located at the turning elongated hole 632 gradually connects with the channel body 631. At this time, the screw moves to the turning elongated hole 632 under the action of gravity and is blocked by the limiting disc 91 located at the positioning hole 633, until the front door 1 where the motor is to be installed. The screw is placed on the mounting base plate 2 and the above actions are repeated. At the same time, when the loading frame 62 and the channel body 631 are reset, the loading frame 62 contacts the end wall of the storage frame 61, and the screw in the storage frame 61 slides smoothly into the loading frame 62. As the storage frame 61 contacts the loading frame 62, the loading frame 62 and the channel body 631 are also driven to vibrate by the vibrating plate, which accelerates the movement of the screw. Through the automated screw loading structure, the occurrence of manual screw picking and focusing of screw holes is reduced, and work efficiency is further improved.

[0065] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automobile door production line, comprising a front door mounting motor module (1), characterized in that, The front door motor mounting module (1) includes a mounting workpiece base plate (2), a rope winding detection component (3), and a screw positioning detection component (4). The mounting workpiece base plate (2) is mounted on a workbench. The mounting workpiece base plate (2) has a motor placement area and a door panel placement area. The motor placement area is located within the door panel placement area. The screw positioning detection component (4) is set on the mounting workpiece base plate (2) and located within the motor placement area. The rope winding detection component (3) is set on the mounting workpiece base plate (2) and located outside the door panel placement area. A screw feeding assembly (6) is provided on one side of the mounting workpiece base plate (2). A linkage synchronization assembly (7) is provided between the screw feeding assembly (6) and the mounting workpiece base plate (2). The front door is placed on the mounting workpiece base plate (2). The linkage synchronization assembly (7) controls the screw feeding assembly (6) to move towards the front door (10) so as to feed the screw into the screw hole of the front door (10). The screw feeding assembly (6) includes a storage frame (61), a feeding frame (62), and multiple feeding channels (63). The storage frame (61) is installed on the workbench, and a flexible connection is formed between the storage frame (61) and the feeding frame (62). A vibrating plate is provided at the bottom of the storage frame (61) to vibrate the screws in the storage frame (61) to the feeding frame (62). The multiple feeding channels (63) are connected to the end of the feeding frame (62) away from the storage frame (61). The end of the multiple feeding channels (63) away from the feeding frame (62) can be moved to the top of the screw hole of the front door (10) through the linkage synchronization assembly (7). Multiple partitions (621) are provided in the feeding frame (62) to divide the feeding frame (62) into multiple areas, and each area corresponds to a feeding channel (63). The feeding channel (63) includes a channel body (631) and a limiting member (9). Both the channel body (631) and the feeding frame (62) are inclined. The height of the end of the channel body (631) away from the feeding frame (62) is lower than the height of the other end. A turning elongated hole (632) and a positioning round hole (633) are opened on the bottom wall of the channel body (631) away from the feeding frame (62). The turning elongated hole (632) and the positioning round hole (633) are connected. The turning elongated hole (632) is located between the positioning round hole (633) and the feeding frame (62). The width of the turning elongated hole (632) is less than the diameter of the screw head and greater than the diameter of the screw thread section. The diameter of the positioning round hole (633) is equal to the diameter of the screw head. The screw slides along the channel body (631), the screw rotates at the turning elongated hole (632), and finally... The screw head is positioned upwards at the positioning hole (633), and the end of the screw thread is positioned at the screw hole opening of the front door (10). The feeding frame (62) is provided with screw guides (8) between each partition (621). The screw guides (8) guide the screws so that they can move along the feeding channel (63) to the turning hole (632), and after turning through the turning hole (632), they move to the positioning hole (633). The limiting members (9) are respectively set at the end of the channel body (631) located between the turning hole (632) and the positioning hole (633), away from the positioning hole (633). The limiting members (9) can restrict the screw from moving towards the positioning hole (633) or towards the turning hole (632). The limiting members (9) are connected to the linkage synchronization component (7) to control whether the screw is restricted at the limiting members (9). The screw guide (8) includes several guide strip groups (81). One end of each guide strip group (81) is connected to the inner wall of the loading frame (62) along its length, and the other end has a lowering gap with the loading frame (62). Several guide strip groups (81) are arranged sequentially along the direction close to the loading channel (63). The lowering gaps formed between adjacent guide strip groups (81) and the loading frame (62) are located on both sides of the loading frame (62). A guide elongated hole (811) is pre-set on each guide strip group (81). The guide elongated hole (811) is arranged along the length of the guide strip group (81). The width of the guide elongated hole (811) is smaller than the head diameter of the screw and larger than the thread diameter of the screw. The linkage synchronization component (7) includes a first linkage rod (71), a second linkage rod (72), and a connecting rod (73). A linkage hole (21) is provided on the mounting base plate (2). The first linkage rod (71) is inserted into the linkage hole (21). A spring (22) connected to the first linkage rod (71) is embedded in the bottom of the linkage hole (21). The second linkage rod (72) is fixedly connected to the bottom of the channel body (631). The end of the second linkage rod (72) away from the channel body (631) is fixedly connected to the connecting rod (73). The end of the connecting rod (73) away from the second linkage rod (72) passes through the mounting base plate (2). The side wall of the mounting base plate (2) is fixedly connected to the first linkage rod (71). The middle part of the connecting rod (73) slides on the mounting base plate (2). The mounting base plate (2) has a connecting hole (23) communicating with the linkage hole (21). The connecting rod (73) is inserted into the connecting hole (23). The first linkage rod (71) can be pressed by the front door. The first linkage rod (71) and the second linkage rod (72) rise or fall synchronously through the connecting rod (73). The limiting member (9) is linked with the connecting rod (73). The two limiting members (9) alternately limit the screw located in the channel body (631). The limiting component (9) includes a limiting disc (91), a limiting torsion spring, and a limiting rope (92). The limiting disc (91) is rotatably connected to the edge of the channel body (631). The channel body (631) has a limiting hole (634) through which the limiting disc (91) passes. The length of the limiting hole (634) is equal to the radius of the limiting disc (91). The limiting torsion spring is mounted on the pivot connecting the limiting disc (91) and the channel body (631). At this location, one end of the limiting rope (92) is connected to the limiting disc (91), and the other end passes around the connecting rod (73) and is connected to the side wall of the mounting workpiece base plate (2). The limiting discs (91) of the two limiting members (9) on the same channel body (631) are connected by a shaft to achieve synchronous rotation. The limiting disc (91) is provided with a through notch (911). When the through notch (911) is located inside the channel body (631), the screw can pass through smoothly.

2. The automobile door production line according to claim 1, characterized in that: The mounting base plate (2) is provided with a pressing member (5). The pressing member (5) is located on the mounting base plate (2) and outside the door panel placement area. The pressing member (5) can press and fix the front door (10) onto the mounting base plate (2).

3. The automobile door production line according to claim 2, characterized in that: Both the screw positioning detection component (4) and the pressing component (5) are electrically connected to the controller. After the screw positioning detection component (4) detects that the screw is screwed in place, it sends a positioning signal to the controller. The controller receives the positioning signal and controls the pressing component (5) to press the front door (10).

4. The automobile door production line according to claim 1, characterized in that: There is a gap between the circular edge of the limiting disc (91) and the threaded section of the screw, and the limiting disc (91) can contact the head of the screw.

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