An on-line switching rack for an automobile assembly line

Abstract

The application relates to the technical field of automobile manufacturing equipment, and discloses an online switching material rack of an automobile assembly line, which comprises a base; a sliding groove is symmetrically and through-opened on the upper surface of the base; the application adopts a transmission structure of "worm-worm wheel+reverse thread screw rod" through a driving assembly to realize synchronous reverse movement of two material placing racks, the switching process is stable and free of jamming, the material placing racks are ensured to be located at fixed positions convenient for operators to take materials after each switching, and the waste of material taking time is reduced. The design of the double-material placing racks enables the material rack to have a "standby-use" double-station function: when one material placing rack is located at a material taking position of the assembly line for real-time use, the other material placing rack can be filled with standby parts in advance, and only driving movement of the driving assembly is needed to complete the switching, the production continuity is obviously improved, the overall structure is relatively simple, the material rack is very convenient to use, and the practicability of the overall device is improved.

Description

Technical Field

[0001] This application relates to the technical field of automobile manufacturing equipment, and in particular to an on-line switching rack for an automobile assembly line. Background Technology

[0002] In automotive assembly production, various parts (such as bolts, clips, and trim panels) need to be transported to the assembly line via racks for operators to use and assemble. Traditional automotive assembly line racks are mostly fixed structures, with each rack capable of holding only a single type or batch of parts. When switching between different parts, empty racks must be manually removed and replaced with racks filled with the new parts. This process is not only labor-intensive but also causes assembly line downtime, impacting production efficiency. While some improved racks employ multi-layer structures to increase capacity, they still cannot solve the downtime problem during parts switching, thus limiting their practical application. Utility Model Content

[0003] To address the problems mentioned in the background art, this application provides an on-line switching rack for automobile assembly lines.

[0004] The technical solution for the material switching rack for an automotive assembly line provided in this application is as follows:

[0005] An inline switching rack for an automotive assembly line, including a base;

[0006] The upper surface of the base is symmetrically provided with sliding grooves. A screw is rotatably installed inside each of the two sliding grooves. A slider located inside the sliding groove is threaded through the side wall of each of the two screws. A material placement rack is fixedly connected to the upper surface of each of the two sliders. Multiple material partitions are fixedly connected to the upper surface of the material placement rack.

[0007] The lower surface of the base is symmetrically fixedly connected with support frames, and two walking wheels are fixedly installed on the lower surface of each of the two support frames. A drive motor is provided on one side of one of the support frames, and the drive motor is connected to two screws through a drive assembly.

[0008] Preferably, the drive assembly includes a connecting shaft, two worm gears, and two worm wheels. A mounting plate is symmetrically fixedly connected to one side of one of the support frames. The connecting shaft is rotatably mounted between the two mounting plates. Two worm gears are fixedly fitted onto the side wall of the connecting shaft. The threads on the two worm gears are in opposite directions. One end of each worm gear movably passes through the side wall of the slide groove and is fixedly fitted with a worm wheel that meshes with the worm gear. The drive motor is fixedly connected to one side of one of the mounting plates, and the output end of the drive motor is fixedly connected to one end of the connecting shaft via a coupling.

[0009] Preferably, a proximity switch is symmetrically fixed on one side of the base to detect the translational position of the material placement rack.

[0010] Preferably, a controller is fixedly installed on the side wall of one of the support frames, which is electrically connected to the drive motor and the proximity switch respectively to realize intelligent control of the equipment. The controller includes a PLC control module and a touch screen.

[0011] Preferably, the two wheels on the left are foot-brake swivel wheels, and the two wheels on the right are directional wheels.

[0012] Preferably, two baffles are fixedly connected between two adjacent material partitions to prevent parts from falling off during movement.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] Compared to existing technologies, this device features a transmission structure using a worm gear-worm wheel + reverse threaded screw drive assembly, enabling synchronous reverse movement of two material placement racks. The switching process is smooth and seamless, ensuring that after each switch, the material placement rack is in a fixed position easily accessible to the operator, reducing wasted retrieval time. The dual material placement rack design provides a "standby-use" dual-station function: while one rack is in the assembly line retrieval position for immediate use, the other can be pre-loaded with spare parts. Switching is simply a matter of moving the rack via the drive assembly, significantly improving production continuity. Furthermore, the overall structure is relatively simple and easy to use, enhancing the overall practicality of the device. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an embodiment of the application;

[0016] Figure 2 This is a structural schematic diagram from another perspective of the application's embodiments;

[0017] Figure 3 This is a schematic diagram of the structure of the driver component in the embodiment of the application.

[0018] Explanation of reference numerals in the attached drawings: 1. Base; 2. Material placement rack; 3. Material partition; 4. Material stop bar; 5. Worm gear; 6. Mounting plate; 7. Connecting shaft; 8. Worm; 9. Drive motor; 10. Controller; 11. Walking wheel; 12. Support frame; 13. Slide rail; 14. Proximity switch; 15. Slider; 16. Screw. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0020] This application discloses an inline material switching rack for an automobile assembly line. (Refer to...) Figure 1-3 An on-line switching rack for an automotive assembly line, comprising a base 1;

[0021] The upper surface of the base 1 is symmetrically provided with sliding grooves 13. Screws 16 are rotatably installed inside the two sliding grooves 13. Slider 15 located inside the sliding grooves 13 are threaded through the side walls of the two screws 16. Material placement racks 2 are fixedly connected to the upper surfaces of the two sliders 15. Multiple material partitions 3 are fixedly connected to the upper surfaces of the material placement racks 2. Two baffles 4 are fixedly connected between two adjacent material partitions 3 to prevent parts from falling off during movement.

[0022] Support frames 12 are symmetrically fixedly connected to the lower surface of the base 1. Two traveling wheels 11 are fixedly installed on the lower surface of each of the two support frames 12. The two traveling wheels 11 on the left are foot brake universal wheels, and the two traveling wheels 11 on the right are directional wheels. A drive motor 9 is provided on one side of one of the support frames 12. The drive motor 9 is connected to two screws 16 through a drive assembly. The drive assembly includes a connecting shaft 7, two worms 8 and two worm wheels 5. Mounting plates 6 are symmetrically fixedly connected to one side of one of the support frames 12. The connecting shaft 7 is rotatably mounted between the two mounting plates 6. Two worms 8 are fixedly fitted on the side wall of the connecting shaft 7. The threads on the two worms 8 are opposite in direction. One end of each of the two screws 16 moves through the side wall of the slide groove 13 and is fixedly fitted with a worm wheel 5 that meshes with the worm 8. The drive motor 9 is fixedly connected to one side of one of the mounting plates 6. The output end of the drive motor 9 is fixedly connected to one end of the connecting shaft 7 through a coupling (not shown in the figure).

[0023] A proximity switch 14 is symmetrically fixed on one side of the base 1 to detect the translational position of the material placement rack 2;

[0024] A controller 10 is fixedly installed on the side wall of one of the support frames 12, and is electrically connected to the drive motor 9 and the proximity switch 14 respectively to realize intelligent control of the equipment. The controller 10 includes a PLC control module and a touch screen.

[0025] The implementation principle of the material switching rack for an automotive assembly line according to this application embodiment is as follows: All electrical components mentioned in this application are externally connected to a power supply and control switch during use. Before use, the rack is moved to the designated workstation next to the automotive assembly line using the traveling wheels 11. The braking device of the left foot brake swivel wheel is deactivated, and the right directional wheel is engaged to ensure the rack is securely placed, preventing displacement during use. Different types or batches of automotive parts (such as bolts, clips, trim panels, etc.) are categorized and placed on the material partitions 3 of the two material placement racks 2. The retaining strips 4 between adjacent partitions prevent parts from falling during movement. The operator sets the material switching parameters (such as the moving direction and target position of the material placement rack 2) through the touchscreen of the controller 10 to complete the preparation work. When the assembly line needs to switch parts, the controller 10 is activated, and the drive motor 9 drives the connecting shaft 7 to rotate between the two mounting plates 6 via the coupling. The two worm gears 8 fixed to the side wall of the connecting shaft 7 rotate synchronously. Since the two worm gears 8 have opposite thread directions and mesh with the worm wheels 5 at the ends of the two screws 16 respectively, the rotation of the worm gears 8 will drive the two worm wheels 5 to rotate in the opposite direction, thereby driving the screws 16 in the slide groove 13 to rotate in the opposite direction. The screws 16 are threadedly engaged with the sliders 15 and the sliders 15 slide along the slide groove 13. The two sliders 15 will drive the material placement racks 2 above to move synchronously in the opposite direction around the base 1. The material placement racks 2 that were originally in non-picking positions will move towards the assembly line, while the material placement racks 2 that were originally in picking positions will move outward, realizing the rapid switching of the material placement racks 2. During the movement of the material placement racks 2, the proximity switch 14 on one side of the base 1 will detect the position of the material placement racks 2 in real time. When the moving material placement racks 2 reach the preset picking position, the proximity switch 14 will transmit a signal to the controller 10. The controller 10 will immediately command the drive motor 9 to stop, and the material placement racks 2 will accurately stop at the picking position, allowing the operator to pick up the required parts from the material partition 3. If you need to switch again, simply repeat the above steps. The entire process does not require disassembling or moving the racks, nor does it require the assembly line to stop and wait.

[0026] During this process, the drive assembly employs a transmission structure of "worm 8 - worm wheel 5 + reverse threaded screw 16" to achieve synchronous reverse movement of the two material placement racks 2. The switching process is smooth and without jamming, ensuring that after each switch, the material placement rack 2 is in a fixed position that is convenient for operators to pick up materials, reducing wasted material retrieval time. The design of the dual material placement racks 2 gives the racks a "standby-use" dual-station function: when one material placement rack 2 is in the assembly line retrieval position for real-time use, the other can be pre-loaded with spare parts. Switching can be completed simply by driving the movement through the drive assembly, significantly improving production continuity. At the same time, the overall structure is relatively simple and very convenient to use, improving the overall practicality of the device.

[0027] Here, when the lead angle (λ) of the worm 8 is less than the friction angle (φ) of the contact surface between the worm wheel 5 and the worm 8, the transmission system of the worm wheel 5 and the worm 8 can achieve self-locking. Through an external power device, the worm 8 can be driven to rotate clockwise and counterclockwise, thereby realizing the clockwise and counterclockwise rotation of the worm wheel 5.

[0028] The models of electrical components involved in this application can be selected according to the actual situation. They are existing technologies and are widely used in society, so they will not be described in detail.

[0029] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0030] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0032] 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. A material switching rack for an automotive assembly line, characterized in that: Includes base (1); The upper surface of the base (1) is symmetrically provided with sliding grooves (13). Screws (16) are rotatably installed inside the two sliding grooves (13). Sliders (15) located inside the sliding grooves (13) are threaded through the side walls of the two screws (16). Material placement racks (2) are fixedly connected to the upper surfaces of the two sliders (15). Multiple material partitions (3) are fixedly connected to the upper surface of the material placement racks (2). The lower surface of the base (1) is symmetrically fixedly connected with support frames (12), and two walking wheels (11) are fixedly installed on the lower surface of each of the two support frames (12). A drive motor (9) is provided on one side of one of the support frames (12), and the drive motor (9) is connected to two screws (16) through a drive assembly.

2. The on-line switching rack for an automobile assembly line according to claim 1, characterized in that: The drive assembly includes a connecting shaft (7), two worms (8) and two worm wheels (5). One of the support frames (12) is symmetrically fixedly connected to one side of a mounting plate (6). The two mounting plates (6) are rotatably mounted together with the connecting shaft (7). Two worms (8) are fixedly fitted on the side wall of the connecting shaft (7). The threads on the two worms (8) are opposite in direction. One end of each of the two screws (16) is movably inserted through the side wall of the slide groove (13) and then fixedly fitted with a worm wheel (5) that meshes with the worm (8). The drive motor (9) is fixedly connected to one side of one of the mounting plates (6). The output end of the drive motor (9) is fixedly connected to one end of the connecting shaft (7) through a coupling.

3. The on-line switching rack for an automobile assembly line according to claim 1, characterized in that: A proximity switch (14) is symmetrically fixed on one side of the base (1) for detecting the translational position of the material placement rack (2).

4. The on-line switching rack for an automobile assembly line according to claim 3, characterized in that: A controller (10) is fixedly installed on the side wall of one of the support frames (12), which is electrically connected to the drive motor (9) and the proximity switch (14) respectively to realize intelligent control of the equipment. The controller (10) includes a PLC control module and a touch screen.

5. The on-line switching rack for an automobile assembly line according to claim 1, characterized in that: The two wheels (11) on the left are foot brake omnidirectional wheels, and the two wheels (11) on the right are directional wheels.

6. The on-line switching rack for an automobile assembly line according to claim 1, characterized in that: Two baffles (4) are fixedly connected between two adjacent material partitions (3) to prevent parts from falling off during movement.

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