A car body welding line conveying mechanism

By designing an adjustable bracket spacing and an open structure for the automotive body welding line conveying mechanism, the problems of inconvenient observation and maintenance in the existing technology have been solved, achieving stable conveying and flexible adaptation to different vehicle body sizes, thus improving practicality and ease of maintenance.

CN224529676UActive Publication Date: 2026-07-21NINGBO YIXING INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO YIXING INTELLIGENT TECHNOLOGY CO LTD
Filing Date
2025-09-26
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing automotive body welding line conveyor mechanism cannot monitor the internal conditions in real time, and the enclosed structure makes maintenance inconvenient and difficult to adapt to different vehicle body sizes, thus reducing its practicality.

Method used

An open conveyor mechanism was designed, including supports, conveyor rollers, sleeves, adjustment mechanisms, conveyor belts, and support mechanisms. The conveyor belt is driven by a motor, and combined with adjustable support spacing and guide rollers, it enables stable transportation and convenient maintenance of the vehicle body.

Benefits of technology

It enables stable transport of vehicle bodies and flexible adaptation to different sizes, improves the practicality of the device, facilitates inspection and maintenance, and enhances the controllability and safety of the transport process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224529676U_ABST
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Abstract

The utility model belongs to automobile welding transport technical field, and disclose a kind of automobile body welding line conveying mechanism, including two opposite supports, the surface of two supports adjacent is rotatably connected with the conveying roller of equal distance arrangement, the sleeve rod is slidably arranged between every two front and back conveying roller, adjusting mechanism is arranged between the bottom of two supports, the upper middle of two supports is provided with trapezoidal frame, and the middle part of trapezoidal frame is equipped with conveying belt.The utility model can start motor operation on trapezoidal frame and drive conveying belt to operate in the middle part of trapezoidal frame, then automobile body is placed on two groups of conveying roller, so that the bottom end of conveying belt is contacted with the surface of car body, and the effect of extrusion contact is played to car body, so as to ensure the stable conveying of car body, and car body will be guided by guide roller in the conveying process, so position deviation will not occur.
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Description

Technical Field

[0001] This utility model belongs to the field of automotive welding and conveying technology, specifically a conveying mechanism for automotive body welding lines. Background Technology

[0002] The main function of a car body is to protect the driver and create a good aerodynamic environment. A good car body not only brings better performance, but also reflects the owner's personality. In terms of form, the car body structure is mainly divided into two types: non-load-bearing and load-bearing. During the welding of the car body, a conveying mechanism is needed to transport and operate the car body.

[0003] A search revealed that patent CN219703892U discloses a conveying mechanism for an automotive body welding line. The mechanism includes a base, a housing and a buffer seat fixedly mounted on the upper surface of the base. The housing has an interior cavity and a through-slot. A motor is fixedly mounted inside the cavity, and a transmission wheel is fixedly mounted on the motor's output shaft. A buffer plate is fixedly mounted on the inner bottom wall of the through-slot. A rubber roller is rotatably connected to the top of the buffer plate via a rotating shaft. The top of the buffer seat is fixedly connected to a box, and a support block is fixedly mounted on the bottom of the box. This automotive body welding line conveying mechanism, by rotating the motor, drives the rubber protrusions on the transmission wheel to rotate, thereby clamping the car body with the rubber protrusions and the rubber roller. This achieves a convenient clamping and conveying effect, maintains the stability of the car body, and prevents slippage between the car body and the conveying mechanism during transport, ensuring effective conveying and facilitating subsequent transport operations, thus improving the efficiency of the conveying mechanism.

[0004] Based on the aforementioned existing technologies, since both the box and the container are enclosed, the internal condition of the car body cannot be observed during transportation. When internal components are damaged and require repair, personnel cannot be notified in a timely manner, hindering subsequent maintenance. Furthermore, the conveying width inside the box is relatively limited, making it difficult to adapt to different car body sizes, thus reducing its practicality. Therefore, we provide a car body welding line conveying mechanism to solve these problems. Utility Model Content

[0005] To address the problems mentioned in the background section, this utility model provides a conveying mechanism for automotive body welding lines.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a conveying mechanism for an automotive body welding line, comprising two opposing supports, with equidistant conveying rollers rotatably connected to adjacent surfaces of the two supports, a sleeve rod slidably disposed between each pair of front and rear conveying rollers, an adjustment mechanism disposed between the bottoms of the two supports, a trapezoidal frame disposed above the middle of the two supports, a conveyor belt mounted in the middle of the trapezoidal frame, and a motor for driving the conveyor belt to rotate disposed on one side of the trapezoidal frame, and a support mechanism for fixing the trapezoidal frame disposed on the two supports.

[0007] Preferably, the adjustment mechanism includes a second base plate and a first base plate, which are respectively fixedly connected to the bottom surfaces of two supports. A screw is rotatably connected to the middle of the second base plate, and the first base plate is threaded onto the surface of the screw. A throttle handle is fixedly connected to the end of the screw away from the second base plate.

[0008] Preferably, the support mechanism includes two partitions, which are respectively fixedly connected to two brackets. Two support plates are fixedly connected to each of the two partitions. A sleeve is fixedly connected to the top of each support plate. Two fixing plates are fixedly connected to the top of the trapezoidal frame. An mounting plate is provided above each fixing plate. Guide rods are fixedly connected to the sides of the two mounting plates, and the guide rods slide into the corresponding sleeves. Electric push rods are installed on the two mounting plates, and the telescopic ends of the electric push rods are fixedly connected to the fixing plates.

[0009] Preferably, the adjacent surfaces of the two partitions are rotatably connected to guide rollers arranged at equal intervals.

[0010] Preferably, both of the brackets are provided with wheels at their bottom ends, and each wheel is provided with a brake pad.

[0011] Preferably, the surface of the conveyor belt is provided with rubber raised strips.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention, through the coordinated arrangement of two supports, conveyor rollers, sleeve rods, adjusting mechanism, conveyor belt, trapezoidal frame, motor, and support mechanism, enables the motor on the trapezoidal frame to drive the conveyor belt to rotate in the middle of the trapezoidal frame. The car body is then placed on the two sets of conveyor rollers, allowing the bottom end of the conveyor belt to contact the surface of the car body, creating a squeezing contact effect and ensuring stable transport. Furthermore, the car body is guided by guide rollers during transport, preventing positional shifts. When adjusting the distance between the two supports according to the car body size, simply rotate the handle to rotate the screw, causing the first base plate and the corresponding support to move, thus adjusting the distance between the two supports. The operation is more flexible and convenient, and the device is entirely open, facilitating personnel to inspect and maintain its components. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model from below; Figure 3 This is a schematic diagram of the conveyor belt structure of this utility model; Figure 4 This is a schematic diagram of the structure of the bracket of this utility model; Figure 5 This is a schematic diagram of the structure of the sleeve rod of this utility model.

[0014] In the diagram: 1. Support; 2. Trapezoidal frame; 3. First base plate; 4. Screw; 5. Conveying roller; 6. Sleeve; 7. Conveyor belt; 8. Support plate; 9. Sleeve; 10. Guide rod; 11. Mounting plate; 12. Electric push rod; 13. Fixing plate; 14. Partition plate; 15. Guide roller; 16. Second base plate. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figure 1-5As shown, this embodiment proposes a conveying mechanism for an automotive body welding line, including two opposing supports 1. Equally spaced conveying rollers 5 are rotatably connected to adjacent surfaces of the two supports 1. A sleeve rod 6 is slidably disposed between each pair of conveying rollers 5. When the two conveying rollers 5 rotate, they together drive the sleeve rod 6 to rotate, thereby ensuring stable conveying of the automotive body on the conveying rollers 5. The sleeve rod 6 allows for adjustable spacing between the two supports 1, positioning the supports 1 and preventing them from tipping over. An adjustment mechanism is provided between the bottoms of the two supports 1, allowing for convenient adjustment of the spacing between them, making operation more flexible and convenient. This mechanism can be adapted to the size of the automotive body, improving the practicality of the device. A trapezoidal frame 2 is provided above the middle of the two supports 1. The trapezoidal frame 2 consists of two trapezoidal plates. A conveyor belt 7 is installed in the middle of the trapezoidal frame 2, and a motor for driving the conveyor belt 7 is set on one side of the trapezoidal frame 2. The motor drives the conveyor belt 7 to run in the middle of the trapezoidal frame 2, thereby transporting the car body below the conveyor belt 7. The car body slides on the conveyor roller 5, ensuring the normal transport of the car body. The device is open and not closed, which facilitates the maintenance of the components and is beneficial to personnel maintenance work. Support mechanisms for fixing the trapezoidal frame 2 are set on the two supports 1. The support mechanisms ensure the stability of the trapezoidal frame 2 on the two supports 1, thereby ensuring the transport of the car body. The machinery, parts and equipment in this device adopt conventional models in the existing technology, and the circuit connection adopts conventional connection methods in the existing technology, which will not be described in detail here.

[0017] like Figure 1 , Figure 2 and Figure 4 As shown, the adjustment mechanism includes a second base plate 16 and a first base plate 3. The second base plate 16 and the first base plate 3 are respectively fixed to the bottom surfaces of the two supports 1. A screw 4 is rotatably connected to the middle of the second base plate 16. The first base plate 3 is threaded onto the surface of the screw 4. A handle is fixed to the end of the screw 4 away from the second base plate 16. With the above structure, when it is necessary to adjust the distance between the two supports 1, simply rotate the handle to drive the screw 4 to rotate. Since the first base plate 3 and the screw 4 are threadedly connected, the first base plate 3 and the corresponding support 1 will move, thus adjusting the distance between the two supports 1. In addition, this mechanism can also prevent the two supports 1 from separating arbitrarily, thereby ensuring the overall stability of the two supports 1.

[0018] like Figures 1 to 4As shown, the support mechanism includes two partitions 14, which are respectively fixed to two supports 1. Two support plates 8 are fixed to each partition 14, and a sleeve 9 is fixed to the top of each support plate 8. Two fixing plates 13 are fixed to the top of the trapezoidal frame 2, and an mounting plate 11 is provided above each fixing plate 13. Guide rods 10 are fixed to the sides of both mounting plates 11, and the guide rods 10 slide into the corresponding sleeves 9. Electric push rods 12 are installed on both mounting plates 11, and the telescopic ends of the electric push rods 12 are fixed to the fixing plates 13. With the above structure, the stability of the trapezoidal frame 2 on the two supports 1 is ensured, thereby ensuring the stability of the conveyor belt 7 during use. Furthermore, when the spacing between the two supports 1 is adjusted, the sleeves 9... It can also slide on the corresponding guide rod 10 without affecting the normal use of the conveyor belt 7. In addition, the height of the trapezoidal frame 2 on the support 1 can be controlled by the operation of the two electric push rods 12, thereby adjusting the contact between the conveyor belt 7 and the car body, which is convenient for adaptive adjustment to car bodies of different sizes. The synchronous operation of the two electric push rods 12 is controlled by a synchronizer, and the synchronizer is an existing mature component. The control method will not be described in detail here. In addition, even if the trapezoidal frame 2 is displaced on the conveyor roller 5, the operation of the conveyor belt 7 will not affect the pushing and conveying of the car body. To prevent the guide rod 10 from sliding randomly in the sleeve 9, a circumferential array of rubber protrusions (not shown in the figure) is provided on the inner wall of the sleeve 9, so that the surface of the guide rod 10 contacts the rubber ball in the sleeve 9.

[0019] like Figure 1 , Figure 2 and Figure 4 As shown, the adjacent surfaces of the two partitions 14 are rotatably connected with guide rollers 15 arranged at equal intervals. With the setting of the guide rollers 15, the side of the vehicle body can be guided and conveyed, avoiding the risk of the vehicle body falling off during the conveying process on the conveying rollers 5.

[0020] like Figure 1 , Figure 2 and Figure 4 As shown, both brackets 1 are equipped with wheels at their bottom ends, and each wheel is equipped with a brake pad. This allows the device to be moved and its position adjusted as a whole, and also facilitates the adjustment of the distance between the two brackets 1, making it more flexible. When the device does not need to be moved or adjusted, the brake pads can be used to stop it, thus preventing the two brackets 1 from moving arbitrarily.

[0021] like Figures 1 to 3 As shown, the surface of the conveyor belt 7 is provided with rubber protrusions, which can increase the contact friction between the conveyor belt 7 and the car body, thereby ensuring that the car body is stably driven to move on the conveyor roller 5 by the operation of the conveyor belt 7, and effectively preventing slippage between the conveyor belt 7 and the car body.

[0022] The working principle and usage process of this utility model are as follows: First, start the motor on the trapezoidal frame 2 to drive the conveyor belt 7 to run in the middle of the trapezoidal frame 2. Then, place the car body on the bracket 1 and support it with two sets of conveyor rollers 5 so that the bottom end of the conveyor belt 7 contacts the surface of the car body, which has a squeezing contact effect on the car body, thereby ensuring the stable transport of the car body. During the transport process, the car body is guided by the guide roller 15, so there will be no positional deviation. When it is necessary to adjust the distance between the two brackets 1 according to the size of the car body, simply rotate the throttle to drive the screw 4 to rotate. The rotation of the screw 4 drives the first base plate 3 and the corresponding bracket 1 to move, thereby completing the adjustment of the distance between the two brackets 1. The operation process is more flexible and convenient. Moreover, the whole device is open, which makes it easy for personnel to inspect and maintain the components.

[0023] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A conveying mechanism for an automobile body welding line, characterized in that: It includes two opposing supports (1), and the adjacent surfaces of the two supports (1) are rotatably connected with conveyor rollers (5) arranged at equal distances. A sleeve rod (6) is slidably arranged between each pair of conveyor rollers (5). An adjustment mechanism is provided between the bottoms of the two supports (1). A trapezoidal frame (2) is provided in the upper middle of the two supports (1). A conveyor belt (7) is installed in the middle of the trapezoidal frame (2), and a motor for driving the conveyor belt (7) is provided on one side of the trapezoidal frame (2). A support mechanism for fixing the trapezoidal frame (2) is provided on the two supports (1).

2. The automotive body welding line conveying mechanism according to claim 1, characterized in that: The adjustment mechanism includes a second base plate (16) and a first base plate (3). The second base plate (16) and the first base plate (3) are respectively fixed to the bottom surfaces of two supports (1). A screw (4) is rotatably connected to the middle of the second base plate (16). The first base plate (3) is threaded onto the surface of the screw (4). A throttle handle is fixed to one end of the screw (4) away from the second base plate (16).

3. The automotive body welding line conveying mechanism according to claim 1, characterized in that: The support mechanism includes two partitions (14), which are fixedly connected to two brackets (1) respectively. Two support plates (8) are fixedly connected to each of the two partitions (14). A sleeve (9) is fixedly connected to the top of each support plate (8). Two fixing plates (13) are fixedly connected to the top of the trapezoidal frame (2). An installation plate (11) is provided above each fixing plate (13). Guide rods (10) are fixedly connected to the sides of the two installation plates (11), and the guide rods (10) slide into the corresponding sleeves (9). Electric push rods (12) are installed on the two installation plates (11), and the telescopic end of the electric push rods (12) is fixedly connected to the fixing plate (13).

4. The automotive body welding line conveying mechanism according to claim 3, characterized in that: The two partitions (14) are rotatably connected to adjacent surfaces by guide rollers (15) arranged at equal intervals.

5. The automotive body welding line conveying mechanism according to claim 1, characterized in that: Both brackets (1) are equipped with wheels at their bottom ends, and each wheel is equipped with a brake pad.

6. The automotive body welding line conveying mechanism according to claim 1, characterized in that: The surface of the conveyor belt (7) is provided with rubber raised strips.