Conveying device for automobile assembly
By optimizing the comb plate structure and conveying device design, the problems of insufficient comb plate strength and unadjustable gap were solved, achieving high strength, durability and flexibility of the equipment, reducing maintenance costs, and improving assembly efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING FURUI SHIDAO ENG TECH CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-04-24
AI Technical Summary
The existing automotive assembly conveyor has poor comb plate strength, is fragile, and has no adjustable gap, resulting in high maintenance costs and low production efficiency.
An integrated comb plate structure was designed, featuring an inclined slope and vertical plane tooth tips. It is fixed to the steel structure by bolt connection, and the gap can be adjusted by adjustable feet. A servo motor drives the sprocket to rotate, ensuring that the comb plate fits the chain. Mold forming is used to avoid processing damage to rigidity.
It improves the strength and durability of the comb plate, reduces maintenance costs, extends the replacement cycle, improves assembly efficiency and safety, and ensures stable equipment operation.
Smart Images

Figure CN224159867U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of conveying equipment technology, and in particular relates to a conveying device for automobile assembly. Background Technology
[0002] In the automotive manufacturing industry, car assembly utilizes assembly line operations. Vehicle frames are fixed to a conveyor belt on the assembly line, while assembly workers stand on the ground, adjusting their positions as the vehicle moves to perform assembly. The role of the personnel conveyor belt in the assembly process is crucial. It allows workers to remain stationary on the conveyor, adjusting its speed to ensure that workers and vehicles move at the same pace, reducing physical exertion, preventing operational instability caused by worker movement, and improving work efficiency.
[0003] Vehicle assembly requires small parts such as gaskets and screws, posing a risk of parts falling off. To prevent parts from rolling into the conveyor chain and causing equipment malfunction, comb plates are installed at the conveyor exit. These comb plates prevent people or materials from falling into the gaps between the conveyor chain and the equipment frame structure when entering or leaving the conveyor, providing safety protection. Multiple comb plates are arranged in a row along the width of the conveyor exit, with the teeth evenly inserted into each slot of the chain, leaving almost no gaps at the conveyor exit. Small parts that fall off reach the comb plates and fall along the inclined surface of the teeth, thus preventing damage to the chain or equipment downtime caused by falling into the chain.
[0004] However, the comb plate has some problems, such as excessively long comb teeth leading to poor strength and fragility, and excessively long tooth tips causing easy breakage. These problems not only affect the normal operation of the equipment but also increase maintenance costs and replacement frequency. In addition, the existing conveyor is not adjustable, and the distance between the comb plate and the chain is fixed. Once the gap becomes too large after installation, the entire assembly and repair must be carried out, which increases maintenance costs and restricts the efficiency of vehicle assembly and production. Summary of the Invention
[0005] To overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a conveying device for automobile assembly, which improves the strength of the comb plate, making it more durable, thereby reducing the maintenance cost of the conveying device and extending the replacement cycle.
[0006] To achieve the above objectives, this utility model employs the following technical solution:
[0007] A conveying device for automobile assembly includes a comb plate, a chain, a steel structure, a sprocket, and a servo motor. The comb plate is fixedly connected to the steel structure, meshes with the chain, and the sprocket is connected to the chain. The servo motor drives the sprocket to rotate. The steel structure supports the servo motor, and adjustable feet are connected to the bottom of the steel structure. The comb plate is an integral structure with parallel grooves on its lower surface. One side of the comb plate has an elongated hole, and the other side has comb teeth. The tips of the teeth on the upper surface of the comb teeth are inclined slopes, and the tips of the teeth are vertical planar structures. The tooth tips are inserted into the chain.
[0008] The adjustable foot includes a welding nut, an adjusting screw, and a base. A through hole is opened at the bottom of the steel structure. The welding nut is welded to the steel structure. The adjusting screw passes through the welding nut and the through hole and is threadedly connected to the welding nut. The base is threadedly connected to the bottom of the adjusting screw. An internal hexagonal hole is opened at the top of the adjusting screw.
[0009] The elongated hole is a countersunk hole structure.
[0010] The angle between the slope and the horizontal plane is within 12°.
[0011] The comb plate is fixedly connected to the steel structure by bolts.
[0012] The tips of the teeth protrude from the body of the comb plate.
[0013] The upper surface of the comb plate is at the same level as the upper surface of the chain plate.
[0014] The comb plates are multiple, and the comb plates are arranged in rows along the transverse direction of the chain.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. This utility model improves the strength, durability, safety and reliability of the equipment by optimizing the comb plate structure and the overall structure of the conveying device, reducing maintenance costs, extending the replacement cycle, and improving assembly efficiency and flexibility.
[0017] 2. This utility model improves the strength and durability of the comb plate. The comb plate adopts a one-piece molding structure, which eliminates the need for additional processing and avoids compromising the overall rigidity of the comb plate. This avoids the problems of insufficient strength and fragility caused by the assembly structure of traditional comb plates. Parallel grooves are added to the lower surface of the comb plate, allowing the comb teeth to fit completely against the conveyor mechanism, better preventing small parts from falling under the chain.
[0018] 3. The comb plate features a sloping surface at the tooth tips, facilitating the scooping of objects falling from the chain onto its surface. This also allows for a smooth transition of the shoe sole to the comb plate surface when transporting people to the exit, preventing any abrupt stops and improving stability. The vertical plane structure at the tooth tips optimizes stress distribution and reduces the risk of breakage due to excessive tooth length.
[0019] 4. The comb plate is fixed to the steel structure with bolts, making installation and disassembly convenient, and facilitating maintenance and replacement. The comb plate uses elongated holes and bolts to connect to the steel structure, making it easy to adjust the gap between the comb plate and the chain, avoiding the need for overall disassembly and repair due to excessive installation gaps, and reducing maintenance costs. The bottom of the steel structure of this utility model has adjustable feet, which facilitates the adjustment of the height of the conveyor device.
[0020] 5. The comb plates are arranged in rows along the transverse direction of the conveyor chain, and multiple comb plates are evenly distributed to ensure that there are almost no gaps at the conveyor outlet, which improves the stability and safety of the assembly process. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of this utility model.
[0022] Figure 2 This is a schematic diagram of the servo motor's installation location.
[0023] Figure 3 This is a schematic diagram of the connection between the sprocket and the plate chain.
[0024] Figure 4 This is a schematic diagram showing the connection between the comb plate and the steel structure.
[0025] Figure 5 This is a diagram illustrating the connection between the comb plate and the chain. Figure 1 .
[0026] Figure 6 This is a diagram illustrating the connection between the comb plate and the chain. Figure 2 .
[0027] Figure 7 This is a schematic diagram of the comb plate structure. Figure 1 .
[0028] Figure 8 This is a schematic diagram of the comb plate structure. Figure 2 .
[0029] Figure 9 This is a diagram showing the installation of adjustable feet.
[0030] Figure 10 This is a schematic diagram of the modular installation of multiple conveying devices.
[0031] In the diagram: 1. Comb plate; 2. Plate chain; 3. Steel structure; 4. Sprocket; 5. Servo motor; 6. Adjustable foot; 7. Long hole; 8. Groove; 9. Slope; 10. Planar structure; 11. Adjustable foot base; 12. Welded nut; 13. Adjusting screw; 14. Hexagonal socket; 15. Large drive sprocket; 16. Small drive sprocket; 17. Drive chain. Detailed Implementation
[0032] The present invention will now be described in detail with reference to the accompanying drawings. However, it should be noted that the implementation of the present invention is not limited to the following embodiments.
[0033] See Figures 1-8 A conveying device for automobile assembly includes a comb plate 1, a chain 2, a steel structure 3, a sprocket 4, and a servo motor 5. The comb plate 1 is fixedly connected to the steel structure 3, the comb plate 1 meshes with the chain 2, the sprocket 4 is connected to the chain 2, the servo motor 5 drives the sprocket 4 to rotate, the steel structure 3 is used to support the servo motor 5, and the bottom of the steel structure 3 is connected to an adjustable foot 6.
[0034] See Figures 4-8 The comb plate 1 is a one-piece structure, molded and injection molded without additional processing to avoid compromising its overall rigidity. One side of the comb plate 1 has an elongated hole 7, and the other side has comb teeth. The lower surface of the comb teeth has parallel grooves 8, and the upper surface of the teeth tips is an inclined slope 9. The angle between the slope 9 and the horizontal plane is within 12°, facilitating the scooping of objects falling from the chain 2 onto the surface of the comb plate 1. Simultaneously, when transporting people to the exit, it allows the soles of shoes to smoothly transition to the surface of the comb plate 1 without jamming, resulting in greater stability. Furthermore, the design shortens the tooth tip length by adjusting the angle between the slope 9 and the horizontal plane, improving tooth tip strength. The tooth tip is a vertical planar structure 10, which inserts into the chain 2. The tooth tip protrudes from the body of the comb plate 1.
[0035] The comb plate 1 is fixedly connected to the steel structure 3 by bolts. The elongated hole 7 of the comb plate 1 is a countersunk hole structure, and the top surface of the bolt connected to the steel structure 3 is not higher than the upper surface of the comb plate 1. The position of the comb plate 1 can be finely adjusted through the elongated hole 7, so that the comb plate 1 meshes with the groove of the chain 2, and the groove 8 is completely attached to the upper surface of the chain 2. Figure 6 The teeth of the comb plate 1 are inserted into the chain 2, and the upper surface of the comb plate 1 and the upper surface of the chain 2 are at the same level. This ensures that materials or personnel will not fall into the chain 2 due to excessive gaps during the conveying process, thus avoiding equipment malfunctions and safety accidents. There are multiple comb plates 1 arranged in a row along the chain 2. If some comb plates 1 are damaged, they can be easily inspected and replaced, reducing maintenance costs.
[0036] See Figures 1-3The servo motor 5 is installed inside the steel structure 3. The plate chain 2 is connected to the sprockets 4. The sprockets 4 are evenly distributed on the square shaft and fixed to it. The square shaft is supported by the steel structure 3 and connected to the steel structure 3 through bearings. The motor output shaft is connected to the small transmission sprocket 16. The shaft end of the square shaft is fixedly connected to the large transmission sprocket 15. The large transmission sprocket 15 and the small transmission sprocket 16 are connected through the transmission chain 17. When the motor starts, the small transmission sprocket 16 rotates with the motor, driving the large transmission sprocket 15 to rotate through the transmission chain 17, thereby driving the square shaft and sprockets 4 to rotate, realizing the operation of the plate chain 2. This makes the conveying device more compact and occupies less space. The conveying device can be used in series or parallel with multiple devices. Adjacent steel structures can be fixedly connected by bolts to achieve modular assembly. See Figure 10 Servo motor 5 drives sprocket 4 to rotate, enabling more precise speed control and better matching with the speed of the automotive production line, thus improving assembly efficiency.
[0037] After the conveying device is started, the servo motor 5 drives the sprocket 4 to rotate, which in turn drives the plate chain 2 to run. The plate chain 2 passes through the gap between the teeth. Materials or people are conveyed forward on the plate chain 2. Small materials that fall on the plate chain 2 are intercepted by the comb plate 1 when they are transported to the end of the plate chain 2, so as to avoid falling into the steel structure 3 of the conveying device, causing wear on the plate chain 2 or equipment failure.
[0038] See Figure 1 , Figure 9 The adjustable foot 6 includes a welded nut 12, an adjusting screw 13, and a base 11. A through hole is opened at the bottom of the steel structure 3. The welded nut 12 is welded to the steel structure 3. The adjusting screw 13 is threadedly connected to the welded nut 12. A welded nut is on the base 11, and the bottom of the base 11 is threadedly connected to the adjusting screw 13 via the welded nut on the base 11. An internal hexagonal socket 14 is opened at the top of the adjusting screw 13. To adjust the height, a wrench can be used to adjust it from the top through the internal hexagonal socket. The adjustable foot 6 can also be purchased directly.
[0039] This invention improves the strength, durability, safety, and reliability of the equipment by optimizing the comb plate structure and the overall structure of the conveying device, reducing maintenance costs, extending the replacement cycle, and improving assembly efficiency and flexibility.
[0040] Through the above specific embodiments, those skilled in the art can easily implement this utility model. However, it should be understood that this utility model is not limited to the specific embodiments described above. Based on the disclosed embodiments, those skilled in the art can arbitrarily combine different technical features to achieve different technical solutions. Due to space limitations and for the sake of brevity, not all of these combined solutions have been described. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A conveying device for automobile assembly, characterized in that, The system includes a comb plate, a chain, a steel structure, a sprocket, and a servo motor. The comb plate is fixedly connected to the steel structure, meshes with the chain, and the sprocket is connected to the chain. The servo motor drives the sprocket to rotate. The steel structure supports the servo motor and has adjustable feet at its bottom. The comb plate is a one-piece structure with parallel grooves on its lower surface. One side of the comb plate has an elongated hole, and the other side has comb teeth. The tips of the teeth on the upper surface of the comb teeth are inclined slopes, and the tips of the teeth are vertical planar structures. The tooth tips are inserted into the chain.
2. The conveying device for automobile assembly according to claim 1, characterized in that, The adjustable foot includes a welding nut, an adjusting screw, and a base. A through hole is opened at the bottom of the steel structure. The welding nut is welded to the steel structure. The adjusting screw passes through the welding nut and the through hole and is threadedly connected to the welding nut. The base is threadedly connected to the bottom of the adjusting screw. An internal hexagonal hole is opened at the top of the adjusting screw.
3. The conveying device for automobile assembly according to claim 1, characterized in that, The elongated hole is a countersunk hole structure.
4. A conveying device for automobile assembly according to claim 1, characterized in that, The angle between the slope and the horizontal plane is within 12°.
5. A conveying device for automobile assembly according to claim 1, characterized in that, The comb plate is fixedly connected to the steel structure by bolts.
6. A conveying device for automobile assembly according to claim 1, characterized in that, The tips of the teeth protrude from the body of the comb plate.
7. A conveying device for automobile assembly according to claim 1, characterized in that, The upper surface of the comb plate is at the same level as the upper surface of the chain plate.
8. A conveying device for automobile assembly according to claim 1, characterized in that, The comb plates are multiple, and the comb plates are arranged in rows along the transverse direction of the chain.