Welding conveying line

By combining the design of a ring conveyor and a multi-section robotic arm, the problems of low efficiency, poor precision, and insufficient applicability of traditional welding equipment are solved, realizing a high-efficiency and precise welding processing cycle that can adapt to the mass production of various products.

CN121107046APending Publication Date: 2025-12-12MAND AUTO PARTS (PIZHOU) CO LTD
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Patent Information

Application Number
CN202511547031.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-28
Publication Date
2025-12-12

AI Technical Summary

Technical Problem

Traditional welding operations are labor-intensive and inefficient. Product positioning deviations, unreasonable flipping mechanism design, inability to perform cyclic operations, and lack of effective positioning mechanisms result in low welding accuracy, which cannot meet the needs of modern mass production.

Method used

The system employs a ring conveyor combined with a push belt, a multi-section robotic arm, a servo motor-driven flipping mechanism, and a clamping plate for positioning, forming a complete processing cycle to achieve the cyclical conveying, flipping, and precise welding of products.

Benefits of technology

It improves conveying efficiency and welding precision, reduces manual operation, adapts to the welding needs of different products, ensures production continuity and batch operation capabilities, and meets the production needs of modern manufacturing industry.

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Abstract

The invention discloses a welding conveying line, which belongs to the technical field of welding equipment and comprises an annular conveying frame, a feeding port of the conveying frame is matched with an inner side rotating wheel through an annular pushing belt, products are pushed to enter a main conveying channel through friction force, and feeding stagnation is avoided. And the product circularly moves in the annular channel, and the multi-section mechanical arm of the welding machine drives the welding gun to move in multiple dimensions, so that welding of at least two key positions is realized. After being welded for the first time, a product enters the turnover mechanism, a servo motor drives a gear to be meshed with teeth of a steering wheel, the steering wheel is driven to rotate to achieve turnover of the product, the steering wheel is attached to the cut-off position of the conveying frame and matched with a channel, and it is guaranteed that the product stably enters the channel. After being turned over, the product reaches a second welding point and is clamped and positioned by the clamping plates with the adaptive cambered surfaces on the two sides, so that welding precision is ensured. And finished products are output from the discharge port to form a complete processing cycle. The conveying line improves the conveying efficiency and continuity.
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Description

Technical Field

[0001] This invention relates to the field of welding technology, and more specifically to a welding conveyor line. Background Technology

[0002] Traditional welding operations often rely on manual handling or linear conveyor equipment. Manual handling is not only labor-intensive and inefficient, but also prone to errors in the welding position, affecting the welding quality. While linear conveyor equipment can initially transport products, it has the problem of a single conveying path and the inability to perform cyclical operations. When welding different sides of a product is required, the product's posture needs to be manually adjusted, which not only increases the number of work steps but also extends the processing cycle. Meanwhile, traditional welding equipment has a limited range of motion for its welding torch, making it difficult to adapt to the needs of different products and welding positions, resulting in poor versatility. Some conveyor systems with tilting functions have poorly designed tilting mechanisms, which can easily cause products to jam or fall during the tilting process, interrupting the conveying flow and affecting overall production efficiency. Furthermore, the lack of effective product positioning mechanisms during welding operations allows products to easily shift during the welding process, further reducing welding precision. These problems severely restrict the production efficiency and product quality of the welding process, failing to meet the demands of modern mass production. Summary of the Invention

[0003] To address the aforementioned technical shortcomings, the purpose of this invention is to form a complete processing cycle by using a ring conveyor as a base, combined with a push belt to assist in feeding, a multi-section robotic arm to drive the welding gun for welding, and a servo motor-driven flipping mechanism to adjust the product posture and clamp positioning.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a welding conveyor line, comprising: The conveyor frame is a ring-shaped frame, and the interior of the conveyor frame is provided with a conveyor channel for conveying products; A welding machine, the welding machine being mounted inside the conveyor frame, the welding gun of the welding machine being able to extend to at least a first position and a second position; The conveyor frame is equipped with a flipping mechanism. When a product is conveyed into the interior of the flipping mechanism, the flipping mechanism can flip the product and continue to move inside the conveyor.

[0005] Preferably, the flipping mechanism includes a support body and a steering wheel, the support body being sleeved on the outside of the steering wheel, the steering wheel being rotatably mounted inside the support body, and the interior of the steering wheel having a channel for product movement.

[0006] Preferably, the position of the conveyor frame at the steering wheel is a cut-off position, the two sides of the steering wheel are in contact with the cut-off position, and the channel inside the steering wheel for product movement is adapted to the conveyor channel. When the steering wheel is rotated, the product inside the steering wheel can enter the interior of the conveyor channel.

[0007] Preferably, a drive gear is rotatably mounted inside the support body, and teeth are provided on the outer side of the steering wheel. The drive gear meshes with the teeth on the outer side of the steering wheel, and a servo motor for driving the drive gear to rotate is fixed on the steering wheel.

[0008] Preferably, the first position and the second position are located on the front and rear sides of the flipping mechanism, and both the first position and the second position are provided with a limiting mechanism.

[0009] Preferably, the limiting mechanism includes a first clamping plate and a second clamping plate, which are disposed on both sides of the conveyor, and both the first clamping plate and the second clamping plate are provided with an arc surface adapted to the side of the product.

[0010] Preferably, the conveyor line is provided with an inlet and an outlet, with the inlet opening facing in one direction and the outlet opening facing in another direction.

[0011] Preferably, a push belt is provided on both sides of the feed inlet, and the push belt is attached to the side of the product.

[0012] Preferably, the push belt is an annular belt, and multiple pulleys are rotatably mounted on the inner side of the push belt. When the pulleys rotate, they drive the push belt to move, and the push belt drives the product to move inside the conveyor.

[0013] Preferably, the welding machine includes a robotic arm and a welding torch, the robotic arm having a multi-segment structure, and the welding torch being mounted at the end of the robotic arm.

[0014] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a welding conveyor line, The beneficial effects of this invention are as follows: The circular conveyor design enables the cyclical transport of products. Compared with traditional linear conveying equipment, it avoids the gap between the end point and the beginning point of the transport, greatly improving the transport efficiency. At the same time, the close fit between the steering wheel and the conveyor frame in the flipping mechanism, and the coordinated operation of the push belt and the wheel, effectively prevent the products from jamming or falling during transport and flipping, ensuring the continuity of the transport process. The push belt at the inlet provides power for product feeding, reducing manual handling and lowering the labor intensity of operators. Furthermore, the entire conveyor line's structural design can be flexibly adjusted according to the shape of different products and welding requirements. The size of the steering wheel channel, the arc shape of the limiting mechanism, and the movement path of the welding gun can be adjusted flexibly, making it highly adaptable and able to meet the welding processing needs of various products. The complete "feed-process-discharge" cycle integrates product conveying, flipping, welding and other processes, reducing the connection time between processes and optimizing the production process. The cyclical characteristics of the ring conveyor and the stable operation of each component enable the equipment to operate in batches and continuously, which can meet the batch production needs of modern manufacturing and improve the overall production efficiency of enterprises. Attached Figure Description Figure 1 This is a schematic diagram of the structure of the present invention.

[0015] Figure 2 This is a diagram showing the connection between the welding torch and the conveyor frame.

[0016] Figure 3 This is a schematic diagram of a conveyor frame.

[0017] Figure 4 This is a diagram showing the movement of products inside the conveyor.

[0018] Figure 5 This is a schematic diagram of the inlet and outlet.

[0019] Figure 6 This is an internal view of the conveyor frame.

[0020] Figure 7 This is a cross-sectional view of the steering wheel and its support.

[0021] Figure 8 for Figure 6 Enlarged view of point A in the image.

[0022] In the diagram: 1. Conveyor frame, 2. Welding machine, 3. Steering wheel, 4. Feed inlet, 5. Support body, 6. Discharge outlet, 7. Drive gear. Detailed Implementation

[0023] The present invention is illustrated below with specific embodiments, but these are not intended to limit the invention.

[0024] Example 1 like Figures 1-7As shown, this embodiment provides a welding conveyor line, including a conveyor frame 1, a welding machine 2, and a flipping mechanism. The conveyor frame 1 is annular, with a dedicated channel for product transport inside. The annular structure allows for the cyclical flow of products, improving overall conveying efficiency. The welding machine 2 is installed inside the conveyor frame 1, and its welding torch has multi-position movement capability, reaching at least two key work points to meet the welding needs of different parts of the product. The flipping mechanism is mounted on the conveyor frame 1. When a product moves into the flipping mechanism area within the conveyor channel, the mechanism adjusts the product's posture. After the flipping operation is completed, the product can continue moving along the conveyor channel. The welding machine 2 consists of a robotic arm and a welding torch. The robotic arm adopts a multi-section design, which has flexible rotation and extension functions, and the welding torch is fixed at the end of the robotic arm. With the flexible operation of the multi-section robotic arm, the welding torch can move in multiple dimensions in space, easily adjusted to the precise position required for product welding, adapting to the operational requirements of different products and different welding positions, and enhancing the flexibility and applicability of welding operations. Example 2 like Figures 1-7 As shown, based on Embodiment 1, this embodiment optimizes the structure of the flipping mechanism to further improve the stability and reliability of product flipping. The flipping mechanism consists of a support body 5 and a steering wheel 3. The support body 5 is sleeve-shaped and is fitted onto the outside of the steering wheel 3, providing stable installation support and rotation space for the steering wheel 3. The steering wheel 3 can rotate freely inside the support body 5, which has a channel that matches the shape of the product. The product can smoothly enter the channel during transportation and achieve posture flipping with the rotation of the steering wheel 3. The position of the conveyor frame 1 corresponding to the steering wheel 3 is designed with a cut-off structure. The two sides of the steering wheel 3 fit tightly against the cut-off point, and the internal channel of the steering wheel 3 is adapted to the size of the conveying channel of the conveyor frame 1, forming a continuous conveying path. When the steering wheel 3 drives the product to rotate, the product can smoothly enter the conveying channel of the conveyor frame 1 under the combined action of its own inertia and conveying force, avoiding jamming or falling, and ensuring the smoothness of the conveying process. To precisely control the rotation of the steering wheel 3, a drive gear 7 is installed inside the support body 5. The steering wheel 3 has teeth machined on its outer side, and the drive gear 7 meshes with these teeth. A servo motor is fixed on the steering wheel 3. After the servo motor starts, it drives the drive gear 7 to rotate. Through gear meshing, the steering wheel 3 rotates inside the support body 5, achieving precise control over the rotation angle and speed of the steering wheel 3, ensuring the accuracy and stability of the product's rotation. Example 3 like Figures 1-7As shown, based on Embodiments 1 and 2, this embodiment further improves the structure of the welding conveyor line, enhancing welding accuracy and conveying stability. Two key operating positions of the welding machine 2 are respectively located on the front and rear sides of the flipping mechanism, and each key position is equipped with a limiting mechanism. During conveying, the product first reaches the key position in front of the flipping mechanism, where the limiting mechanism positions the product, ensuring precise welding by the welding machine 2 at this position. After being flipped by the flipping mechanism, the product continues to be conveyed to the key position behind the flipping mechanism, where the limiting mechanism again positions the product, providing precise positioning assurance for subsequent welding operations by the welding machine 2. The limiting mechanism consists of a first clamping plate and a second clamping plate, which are respectively installed on both sides of the conveying channel. The inner sides of both the first and second clamping plates are machined with arc surfaces that conform to the shape of the product's side profile. When the product is conveyed to the limiting mechanism, the first and second clamping plates cooperate, and the arc surfaces fit tightly against the product's side, clamping and limiting the product from both sides to prevent displacement during welding and ensure welding quality. The conveyor line has an inlet 4 at the beginning and an outlet 6 at the end. Products to be processed enter the conveying channel through the inlet 4. After a series of processing steps, including welding and flipping, the finished product is conveyed out of the conveyor line through the outlet 6, forming a complete product processing and conveying cycle. Push belts are installed on both sides of the feed inlet 4, and the push belts are tightly attached to the sides of the product. The push belts adopt a ring structure, with multiple rollers installed on their inner side. When the rollers rotate, they drive the push belt to move in a circular motion. The push belts, through friction with the sides of the product, propel the product within the conveyor channel, providing power support for the product to enter the main conveyor flow. This is especially effective in improving the smoothness of feeding, particularly for heavier products or products that are difficult to start. The multiple rollers not only provide stable support for the push belts but also ensure their continuous and stable movement, thereby guaranteeing the continuity of product movement within the conveyor channel.

[0025] Working principle: The welding conveyor line uses a ring conveyor frame 1 as its core carrier. The internal channels of the conveyor frame 1 provide a stable conveying path for the products. External products to be processed enter the channel through the feed inlet 4 at the beginning of the conveyor line. The ring push belts on both sides of the feed inlet 4 are closely attached to the sides of the products. When the multiple rollers inside the push belts rotate, they drive the push belts to move in a cycle. The friction between the belts and the products provides power to propel the products smoothly into the main conveying channel of the conveyor frame 1, avoiding stagnation of the products during the feeding stage. The product moves in a circular conveyor channel. When it moves to the working area of ​​welding machine 2, the multi-section robotic arm of welding machine 2 rotates and extends flexibly, driving the welding gun at the end to move in multiple dimensions in space, adjusting the welding gun to the required welding position of the product (at least two key working points) and performing precise welding on the product. After the first welding is completed, the product continues to move along the conveyor channel to the flipping mechanism area. The support body 5 of the flipping mechanism provides a stable mounting base for the steering wheel 3. The teeth on the outside of the steering wheel 3 mesh with the drive gear 7 inside the support body 5. After the servo motor is started, it drives the drive gear 7 to rotate, which in turn drives the steering wheel 3 to rotate inside the support body 5 through gear transmission. After the product enters the channel inside the steering wheel 3 that matches its own shape, it completes the posture flipping as the steering wheel 3 rotates. Because the position of the conveyor frame 1 corresponding to the steering wheel 3 is a cut-off structure, and the two sides of the steering wheel 3 fit tightly with the cut-off point, and the internal channel is adapted to the size of the conveyor channel, the flipped product, under the combined action of its own inertia and conveying force, smoothly enters the conveyor channel of the conveyor frame 1 and continues to move to the second working point of the welding machine 2. The limiting mechanism at this point is then activated, and the first and second clamping plates on both sides clamp and position the product by adapting the inner curved surface of the product side, ensuring that the welding machine 2 completes precise welding at this position. Products that have completed all welding processes continue to move along the circular conveyor channel and are finally conveyed out from the discharge port 6 at the end of the conveyor line, forming a complete "feeding-welding-turning-secondary welding-discharging" processing cycle. The circular structure of the conveyor frame 1 ensures that subsequent products can continuously enter the processing flow, realizing batch and continuous operation.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate and not limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the present invention without departing from the spirit and scope of the present invention. Any modifications or partial substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A welding conveyor line, characterized in that, include: The conveyor frame (1) is a ring frame, and the inside of the conveyor frame (1) is provided with a conveyor channel for conveying products; Welding machine (2), which is installed inside the conveyor frame (1), wherein the welding gun of the welding machine (2) can extend to at least a first position and a second position; The conveyor frame (1) is equipped with a flipping mechanism. When the product is conveyed into the interior of the flipping mechanism, the flipping mechanism can flip the product and continue to move inside the conveyor.

2. The welding conveyor line according to claim 1, characterized in that, The flipping mechanism includes a support body (5) and a steering wheel (3). The support body (5) is sleeved on the outside of the steering wheel (3), and the steering wheel (3) is rotatably mounted inside the support body (5). The inside of the steering wheel (3) is provided with a channel for product movement.

3. A welding conveyor line according to claim 2, characterized in that, The position of the conveyor frame (1) on the steering wheel (3) is the cut-off position. The two sides of the steering wheel (3) are in contact with the cut-off position. The channel inside the steering wheel (3) for product movement is adapted to the conveyor. When the steering wheel (3) is flipped, the product inside the steering wheel (3) can enter the interior of the conveyor.

4. A welding conveyor line according to claim 2, characterized in that, The support body (5) is rotatably mounted with a drive gear (7), the steering wheel (3) is provided with teeth on the outside, the drive gear (7) is meshed with the teeth on the outside of the steering wheel (3), and a servo motor for driving the drive gear (7) to rotate is fixed on the steering wheel (3).

5. A welding conveyor line according to claim 1, characterized in that, The first position and the second position are located on the front and rear sides of the flipping mechanism, and both the first position and the second position are equipped with a limiting mechanism.

6. A welding conveyor line according to claim 5, characterized in that, The limiting mechanism includes a first clamping plate and a second clamping plate, which are disposed on both sides of the conveyor. Both the first clamping plate and the second clamping plate are provided with an arc surface that is adapted to the side of the product.

7. A welding conveyor line according to claim 1, characterized in that, The conveyor line is provided with an inlet (4) and an outlet (6), with the inlet (4) facing the same direction as the outlet (6).

8. A welding conveyor line according to claim 7, characterized in that, A push belt is provided on both sides of the feed inlet (4), and the push belt is attached to the side of the product.

9. A welding conveyor line according to claim 8, characterized in that, The push belt is a ring belt, and multiple pulleys are rotatably installed on the inner side of the push belt. When the pulleys rotate, they drive the push belt to move, and the push belt drives the product to move inside the conveyor.

10. A welding conveyor line according to claim 1, characterized in that, The welding machine (2) includes a robotic arm and a welding torch. The robotic arm has a multi-section structure, and the welding torch is installed at the end of the robotic arm.

Citation Information

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