Welding device for automobile traction seat production

Abstract

The invention relates to the technical field of traction seat welding, and provides a welding device for automobile traction seat production, which is used for welding a reinforcing rib plate to a stamping disc body to form a traction seat main body, the stamping disc body is provided with a hanging opening, and the welding device comprises a frame body; the welding assembly is arranged on the frame body and used for welding; the storage rack is rotationally arranged on the rack body and located beside the welding assembly, the storage rack is provided with a storage face, after the storage rack rotates, the storage face faces upwards or downwards or inclines, and the storage face is used for containing a traction base body to be welded. By means of the technical scheme, the technical problem that the traction base is inconvenient to clean after the traction base is welded through a welding device in the related technology is solved.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of towing seat welding, and more particularly, to a welding device for manufacturing automotive towing seats. Background Art

[0002] As a key component in an automotive towing system, the quality and performance of an automotive towing seat directly affect the towing capacity and safety of the vehicle. During the manufacturing process of an automotive towing seat, welding a reinforcing rib plate to a stamping disc body to form the towing seat main body is an important manufacturing step.

[0003] Currently, in the welding production of automotive towing seats, there are generally some problems. After welding is completed by existing welding devices, due to the lack of effective cleaning means, impurities such as welding slag and spatter generated during the welding process are likely to remain on the towing seat main body, especially in the recessed parts of the stamping disc body. These impurities not only affect the appearance quality of the product but may also have an adverse impact on subsequent processing and use, such as causing component wear and reducing connection strength.

[0004] In addition, when fixing workpieces to be welded by existing welding devices, the fixing effect is not ideal, and the attitude consistency between each towing seat main body is poor. Some fixing methods cannot firmly fix the workpieces, and the workpieces are likely to become loose during the welding process, affecting the stability and precision of welding. Inconsistent attitudes are likely to cause an increase in power consumption due to path changes during the welding process.

[0005] Therefore, in order to improve the manufacturing quality and efficiency of automotive towing seats, reduce production costs, and meet diverse production requirements, there is an urgent need for a welding device for manufacturing automotive towing seats with a reasonable structure and convenient operation. Summary of the Invention

[0006] To overcome the above-mentioned defects, embodiments of the present disclosure provide a welding device for manufacturing automotive towing seats, which solves the technical problem that the welding device in the related art is not convenient for cleaning the towing seat after welding the towing seat.

[0007] According to one aspect, at least one embodiment of the present disclosure provides a welding device for manufacturing automotive towing seats, which is used to weld a reinforcing rib plate to a stamping disc body to form a towing seat main body. The stamping disc body has a hanging opening. The key lies in that it includes: A frame; A welding assembly, arranged on the frame, and the welding assembly is used for welding; A storage rack, rotatably arranged on the frame. The storage rack is located beside the welding assembly. The storage rack has a storage surface. After the storage rack rotates, the storage surface faces upward, downward, or obliquely. The storage surface is used to place the towing seat main body to be welded.

[0008] For example, a welding device for manufacturing an automotive towing seat provided by at least one embodiment of the present disclosure further includes: A rotating member rotatably disposed on the placement surface; A fixing member disposed on the rotating member, and the fixing member is configured to enter and be fixed within the hanging opening.

[0009] For example, a welding device for manufacturing an automotive towing seat provided by at least one embodiment of the present disclosure The fixing member is an expansion member.

[0010] For example, a welding device for manufacturing an automotive towing seat provided by at least one embodiment of the present disclosure The expansion member is an expansion rod or an expansion airbag.

[0011] For example, a welding device for manufacturing an automotive towing seat provided by at least one embodiment of the present disclosure, the rotating member includes: A shaft body rotatably disposed in the middle on the placement surface. The shaft body has an upper end and a lower end. The upper end is above the placement surface, and the lower end is below the placement surface. The shaft body is perpendicular to the placement surface, and the fixing member is disposed at the upper end of the shaft body; A rod body fixedly disposed in the middle at the lower end of the shaft body, and the rod body is perpendicular to the shaft body; A counterweight slidably disposed on the rod body.

[0012] For example, a welding device for manufacturing an automotive towing seat provided by at least one embodiment of the present disclosure A plurality of air holes are formed on the placement surface. The air holes are configured to suck or blow air. When the air holes suck air, they are used to adsorb and fix the towing seat main body, and when the air holes blow air, they are used to form an air film between the towing seat main body and the placement surface.

[0013] For example, a welding device for manufacturing an automotive towing seat provided by at least one embodiment of the present disclosure further includes: A cleaning assembly disposed on the frame body. The cleaning assembly is located below the placement rack, and the cleaning assembly is used to clean the towing seat main body.

[0014] For example, a welding device for manufacturing an automotive towing seat provided by at least one embodiment of the present disclosure, the cleaning assembly includes: A nozzle disposed on the frame body, and the nozzle is used to spray a fluid to clean the towing seat main body.

[0015] For example, a welding device for manufacturing an automotive towing seat provided by at least one embodiment of the present disclosure, the welding assembly includes: A welding robotic arm disposed on the frame body; The welding head is arranged on the welding robot arm.

[0016] For example, a welding device for manufacturing an automotive towing seat provided by at least one embodiment of the present disclosure A plurality of the air holes are evenly distributed on the placing surface, and the blowing direction of the gas from the air holes is perpendicular to the placing surface.

[0017] The beneficial effects of the embodiments of the present disclosure are as follows: In the present disclosure, the frame body serves as the basic support structure of the entire welding device, providing an installation and fixing platform for other components such as the welding assembly and the placing rack. It ensures the stability of the relative position relationship between the components, enabling the entire device to maintain the integrity and stability of the structure during operation, and avoiding affecting the welding operation and welding quality due to component shaking or displacement.

[0018] The welding assembly is arranged on the frame body and is specifically used to weld the reinforcing rib plate and the stamping disc body (before welding, the reinforcing rib plate is clamped or pre-fixed on the stamping disc body for subsequent welding operations).

[0019] The placing surface of the placing rack is used to place the towing seat body to be welded, and its rotatable feature is a major highlight of the device. When the placing surface faces upward, it is convenient for the operator to place the towing seat body to be welded on the placing surface; when welding different parts is required, the placing surface can be rotated to an inclined angle, enabling the welding assembly to more conveniently weld specific parts, improving the welding efficiency and reducing the energy consumption of the welding assembly. At the same time, this multi-angle adjustability can meet the welding requirements of towing seat bodies with different shapes and structures, increasing the versatility and applicability of the device, and it can be widely used in the welding process of various types of automotive towing seats. Additionally, referring to Figure 3 As shown, after welding the towing seat body to be welded, welding slag or other particulate matters often remain in the concave surface on the back of the towing seat body. The placing surface can be rotated to a downward position, and due to the action of gravity, the welding slag or other particulate matters remaining in the concave surface on the back are likely to fall off and be cleaned, which is beneficial to improving the cleanliness of the welded towing seat body and is also beneficial for subsequent processing in the following process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings required for describing the embodiments of the present disclosure. Obviously, the following-described drawings are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can also be obtained based on the content of the exemplary embodiments of the present disclosure and these drawings without creative efforts.

[0021] Figure 1 Schematic diagram of the three-dimensional structure of the present disclosureFigure 1 ; Figure 2 Schematic diagram of the three-dimensional structure of the present disclosure Figure 2 ; Figure 3 Schematic diagram of the structure of the present disclosure in the usage state; Figure 4 Schematic diagram of the main structure of the towing seat of the present disclosure Figure 1 ; Figure 5 Schematic diagram of the main structure of the towing seat of the present disclosure Figure 2 .

[0022] In the figure: 1 - main body of the towing seat, 11 - reinforcing rib plate, 12 - stamping disc body, 13 - hanging opening, 14 - positive smooth surface, 15 - back concave surface, 2 - frame body, 3 - storage rack, 31 - storage surface, 32 - air hole, 41 - rotating part, 42 - fixing part, 43 - shaft body, 44 - rod body, 45 - counterweight block, 5 - cleaning assembly, 51 - nozzle, 6 - welding assembly, 61 - welding robot arm, 62 - welding head. Specific embodiments

[0023] The present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than limiting the present disclosure.

[0024] For the sake of simplicity of the drawings, only the parts related to the disclosure are schematically shown in each figure, and they do not represent their actual structures as products. In addition, for the sake of simplicity and easy understanding of the drawings, in some figures, components with the same structure or function are only schematically shown as one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also means "more than one" situation, and "several" includes "two" and "more than two".

[0025] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific situations.

[0026] In this disclosure, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0027] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left" and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as a limitation to this disclosure.

[0028] In addition, in the description of this application, terms such as "first" and "second" are only used for distinguishing descriptions, and cannot be construed as indicating or implying relative importance.

[0029] As Figures 1 to 5 shown, it shows a welding device for manufacturing an automotive towing seat in an embodiment of this disclosure, which is used to weld a reinforcing rib plate 11 to a stamping disc body 12 to form a towing seat main body 1. The stamping disc body 12 has a hanging opening 13, and includes a frame body 2, a welding assembly 6 and a storage rack 3; the welding assembly 6 is arranged on the frame body 2 and is used for welding; the storage rack 3 is rotatably arranged on the frame body 2, the storage rack 3 is located beside the welding assembly 6, the storage rack 3 has a storage surface 31, and after the storage rack 3 rotates, the storage surface 31 faces upward, downward or obliquely, and the storage surface 31 is used for placing the towing seat main body 1 to be welded.

[0030] The frame body 2 serves as the basic support structure of the entire welding device, providing an installation and fixing platform for other components such as the welding assembly 6 and the storage rack 3. It ensures the relative positional relationship between components is stable, enabling the entire device to maintain the integrity and stability of the structure during operation, and avoiding affecting the welding operation and welding quality due to component shaking or displacement.

[0031] The welding assembly 6 is arranged on the frame body 2 and is specifically used to realize the welding work of the reinforcing rib plate 11 and the stamping disc body 12 (before welding, the reinforcing rib plate 11 will be clamped or pre-fixed on the stamping disc body 12 for subsequent welding operations).

[0032] The placement surface 31 of the storage rack 3 is used to place the traction seat body 1 to be welded, and its rotatable feature is a major highlight of this device. When the placement surface faces upward, it is convenient for the operator to place the traction seat body 1 to be welded on the placement surface; when welding different parts is required, the placement surface 31 can be rotated to an inclined angle, enabling the welding assembly 6 to more conveniently weld specific parts, improving the welding efficiency and reducing the energy consumption of the welding assembly 6. At the same time, this multi-angle adjustability can adapt to the welding requirements of traction seat bodies with different shapes and structures, increasing the versatility and applicability of the device, and it can be widely used in the production welding process of various types of automotive traction seats. Additionally, referring to Figure 3 As shown, after welding the traction seat body 1 to be welded, there are often welding slag or other particulate matters remaining in the concave surface 15 on the back of the traction seat body 1. The placement surface 31 can be rotated to the downward position. Due to the effect of gravity, the welding slag or other particulate matters remaining in the concave surface 15 on the back are likely to fall off and be cleaned, which is beneficial to improving the cleanliness of the welded and processed traction seat body 1 and is also beneficial for processing in subsequent processes.

[0033] In some examples, it further includes a rotating member 41 and a fixing member 42. The rotating member 41 is rotatably arranged on the placement surface 31; the fixing member 42 is arranged on the rotating member 41, and the fixing member 42 is used to enter and fix in the hanging opening 13.

[0034] For example, as Figure 1 shown, the rotating member 41 is rotatably arranged on the placement surface 31, and the fixing member 42 for fixing the traction seat body 1 is provided on the rotating member 41, providing a basis for the traction seat body 1 to rotate around the rotating member 41 on the placement surface 31.

[0035] The fixing member 42 is arranged on the rotating member 41 and is used to enter and be fixed in the hanging opening 13, and utilizes the existing hanging opening 13 structure on the stamping plate body 12. When the fixing member 42 is inserted into the hanging opening 13, it can form a mechanical connection with the hanging opening 13, and the traction seat body 1 is rotated and arranged on the storage surface 31. Because the storage surface 31 can be rotated to adjust the angle, the two have a combined effect. Specifically, when the traction seat body 1 is placed on the storage surface 31, and the fixing member 42 successfully enters the hanging opening 13 and is fixed, the storage rack 3 is rotated to make the storage surface 31 in an inclined or vertical state. At this time, the traction seat body 1 will automatically adjust to a balanced posture under the action of its own gravity. Then, the storage rack 3 is rotated again to make the storage surface 31 in the best state for convenient welding. At this time, the processing position of the traction seat body 1 on the storage surface 31 is basically fixed. This fixing method enables the welding assembly 6 to more easily memorize the welding sequence, which is more handy when performing welding operations and the operation process is smoother. At the same time, since the position of the traction seat body 1 is relatively fixed, the moving path of the welding assembly 6 during the welding process is reduced, which not only improves the stability and accuracy of welding, but also effectively reduces the energy consumption of the welding assembly 6, and improves production efficiency and economic benefits.

[0036] In some examples, a limiter is further included. The limiter is disposed on the storage rack 3. The limiter is located on one side of the rotating member 41. The limiter is used to limit the position of the rotating member 41. When the limiter acts on the rotating member 41, the rotating member 41 cannot rotate. When the limiter cancels the restriction on the rotating member 41, the rotating member 41 can rotate freely. That is, the rotating member 41 has two states, one is a state in which it can rotate freely, and the other is a state in which rotation is restricted.

[0037] When the rotating member 41 is in a free rotation state without being affected by the limiting member, the traction seat body 1 located on the placement surface 31 can be adjusted to a gravity balance position under the action of gravity; when the rotating member 41 is in a restricted rotation state due to the limiting member, the traction seat body 1 adjusted to the gravity balance position can be fixed to stabilize the welding operation.

[0038] The limiting member includes an electric cylinder arranged on the lower surface of the storage rack 3, and a top block is arranged on the telescopic rod of the electric cylinder. The top block is used to support the shaft body 43. When the top block supports the shaft body 43, the shaft body 43 cannot rotate. When the top block no longer supports the shaft body 43, the shaft body 43 can rotate freely.

[0039] In some examples, the fixing member 42 is an expansion member.

[0040] For example, Figure 1As shown, when the fixing member 42 is an expansion member, the connection tightness between the fixing member 42 and the hanging opening 13 is greatly enhanced. After the expansion member is inserted into the hanging opening 13, it closely fits with the inner wall of the opening through the expansion process, generating strong frictional force and binding force. This makes the fixing of the towing seat main body 1 on the placing surface 31 more firm and reliable (the rotating member 41 has a free rotation state and a restricted rotation state, and in the restricted rotation state, it can play a fixing role for the towing seat main body 1), effectively preventing loosening or displacement caused by external forces (such as vibration, thermal stress, etc.) during the welding process. Especially during the welding process, in the face of possible workpiece deformation, the elastic expansion characteristics of the expansion member can adaptively compensate for the deformation and continuously maintain a stable fixing effect, providing a more reliable guarantee for the welding quality.

[0041] In some examples, the expansion member is an expansion rod or an expansion airbag.

[0042] If the expansion member is an expansion rod, its structure is simple and the operation is convenient. It is driven to expand and contract by mechanical or hydraulic means, and can accurately control the degree of expansion. For hanging openings 13 of different sizes and shapes, the expansion rod can flexibly adjust its own expansion state to achieve a tight and reliable fixation. This precise control ability enables it to adapt to diverse welding requirements.

[0043] When the expansion member is an expansion airbag, it has good flexibility and shape adaptability. After being inflated, the expansion airbag can automatically adjust its own shape according to the irregular shape of the hanging opening 13 to achieve a large-area close fit with the inner wall of the opening, generating a stronger fixing force. During the welding process, the elasticity of the expansion airbag can also effectively absorb the vibration and stress generated by welding, further improving the stability of the fixing of the towing seat main body 1, protecting the workpiece from damage, and at the same time providing a more stable working condition for the welding operation, which is beneficial to improving the welding quality and the reliability of the product.

[0044] The outer surface of the expansion airbag has anti-slip protrusions, and the anti-slip protrusions are used to increase the frictional force with the inner wall of the hanging opening 13 and enhance the fixing stability between the fixing member 42 and the towing seat main body 1.

[0045] In some examples, the rotating member 41 includes a shaft body 43, a rod body 44, and a counterweight 45: The middle part of the shaft body 43 is rotatably arranged on the placing surface 31. The shaft body 43 has an upper end and a lower end. The upper end is above the placing surface 31, and the lower end is below the placing surface 31. The shaft body 43 is perpendicular to the placing surface 31, and the fixing member 42 is arranged at the upper end of the shaft body 43; The middle part of the rod body 44 is fixedly arranged at the lower end of the shaft body 43, and the rod body 44 is perpendicular to the shaft body 43; The counterweight 45 is slidably arranged on the rod body 44.

[0046] For example, as Figure 2As shown, the middle part of the shaft body 43 in the rotating member 41 is rotatably arranged on the placing surface 31 and perpendicular to the placing surface 31, providing a stable and flexible rotation axis for the fixing member 42.

[0047] The middle part of the rod body 44 is fixed to the lower end of the shaft body 43 and perpendicular to the shaft body 43, providing an installation carrier for the counterweight 45. The counterweight 45 can slide on the rod body 44. By adjusting its position, the center of gravity of the rotating member 41 can be changed, and then the center of gravity of the towing seat main body 1 can be adjusted, enabling the towing seat main body 1 to maintain the required state when the placing surface 31 is in an inclined or vertical state, improving the adaptability and adjustability.

[0048] In some examples, a plurality of air holes 32 are formed on the placing surface 31. The air holes 32 are used for inhaling or blowing air. When the air holes 32 inhale air, they are used to adsorb and fix the towing seat main body 1. When the air holes 32 blow air, they are used to form an air film between the towing seat main body 1 and the placing surface 31.

[0049] For example, as Figure 1 shown, a plurality of air holes 32 evenly distributed on the placing surface 31 have two functions of inhaling and blowing air, providing diversified ways for the fixing and operation of the towing seat main body 1 on the placing surface 31. When the air holes 32 inhale air, a negative pressure is formed between the placing surface 31 and the towing seat main body 1, firmly adsorbing the towing seat main body 1 on the placing surface 31. This adsorption and fixing method is uniform and traceless, and will not damage the surface of the towing seat main body 1, being particularly suitable for the production of automotive towing seats with high surface quality requirements. During the welding process, the adsorption and fixing can effectively prevent the displacement of the towing seat main body 1 and ensure the welding accuracy.

[0050] When the air holes 32 blow air, a uniform air film is formed between the towing seat main body 1 and the placing surface 31. The existence of the air film significantly reduces the friction between the two, enabling the operator to more easily adjust the position and angle of the towing seat main body 1, improving the flexibility and efficiency of the operation; more importantly, the reduction of friction is more conducive to adjusting the towing seat main body 1 to a gravity balance state when the placing surface 31 is in an inclined or vertical state, improving the attitude consistency of each towing seat main body 1. At the same time, the air film can also play a buffering role, absorbing the impact force when the towing seat main body 1 is placed and protecting the workpiece from being scratched or damaged.

[0051] In some examples, a cleaning component 5 is further included. The cleaning component 5 is arranged on the frame body 2. The cleaning component 5 is located below the storage rack 3. The cleaning component 5 is used for cleaning the towing seat main body 1.

[0052] For example, as Figure 1 shown, the cleaning component 5 is arranged on the frame body 2 and located below the storage rack 3, which can clean the residues in the back concave surface 15 when the placing surface 31 rotates to the downward state, being very convenient.

[0053] In some examples, the cleaning assembly 5 includes a nozzle 51, which is arranged on the frame body 2 and is used to eject fluid to clean the towing seat main body 1.

[0054] The nozzle 51 in the cleaning assembly 5 is arranged on the frame body 2. By precisely controlling the fluid (such as cleaning liquid, high-pressure gas, etc.) ejected by the nozzle 51, efficient cleaning of the towing seat main body 1 can be achieved. The design of the nozzle 51 can be optimized according to the cleaning requirements, and parameters such as its aperture, spraying angle, and spraying pressure can be adjusted to adapt to different types of stains.

[0055] In some examples, the welding assembly 6 includes a welding robot arm 61 and a welding head 62. The welding robot arm 61 is arranged on the frame body 2; the welding head 62 is arranged on the welding robot arm 61.

[0056] The welding robot arm 61 in the welding assembly 6 is arranged on the frame body 2 and has multiple degrees of freedom, enabling flexible movement and rotation in three-dimensional space. This allows the welding robot arm 61 to accurately position the welding head 62 at any welding required part of the towing seat main body 1.

[0057] In some examples, a plurality of air holes 32 are evenly distributed on the placing surface 31, and the direction of the gas blown out by the air holes 32 is perpendicular to the placing surface 31.

[0058] For example, as Figure 1 shown, a plurality of air holes 32 are evenly distributed on the placing surface 31, and the direction of the gas blown out by the air holes 32 is perpendicular to the placing surface 31. This design greatly optimizes the air suction and blowing functions of the air holes 32. When the air holes 32 suck air, the even distribution ensures the generation of a uniform negative pressure on the placing surface 31, enabling the towing seat main body 1 to receive a uniform adsorption force, avoiding tilting or movement of the towing seat main body 1 caused by insufficient local adsorption force, and ensuring its stability and welding accuracy during the welding process.

[0059] When the air holes 32 blow air, the vertically blown gas can form a stable and uniform air film, uniformly reducing the friction force between the towing seat main body 1 and the placing surface 31. At the same time, the vertically blown gas direction facilitates precise control and adjustment of the gas flow rate and pressure, and can prevent the movement of the towing seat main body 1 caused by changes in the air flow direction.

[0060] In some examples, the air flow size, air suction or air blowing of each air hole 32 can be controlled separately to adapt to various requirements.

[0061] In some examples, the stamping disc body 12 has a positive smooth surface 14 and a back concave surface 15, and the reinforcing rib plate 11 is welded inside the back concave surface 15.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and not to limit them. Although the present disclosure has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present disclosure can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present disclosure, and they should all be covered within the scope of the claims of the present disclosure.

Claims

1. A welding device for producing a fifth wheel of an automobile, used for welding a reinforcing rib plate (11) to a stamped disc (12) to form a fifth wheel body (1), wherein the stamped disc (12) has a hanging opening (13), characterized in that: include: Frame (2); A welding assembly (6) is arranged on the frame (2), and the welding assembly (6) is used for welding; A storage rack (3) is rotatably arranged on the frame body (2), the storage rack (3) is located next to the welding assembly (6), and the storage rack (3) has a storage surface (31). After the storage rack (3) is rotated, the storage surface (31) faces upward, downward or tilted, and the storage surface (31) is used to place the traction seat body (1) to be welded.

2. A welding device for producing a fifth wheel of an automobile according to claim 1, characterized in that: Also includes: A rotating member (41) rotatably disposed on the storage surface (31); A fixing member (42) is arranged on the rotating member (41), and the fixing member (42) is used to enter and be fixed in the hanging opening (13).

3. A welding device for producing a fifth wheel of an automobile according to claim 2, characterized in that: The fixing member (42) is an expansion member.

4. A welding device for producing a fifth wheel of an automobile according to claim 3, characterized in that: The expansion member is an expansion rod or an expansion air bag.

5. A welding device for producing a fifth wheel of an automobile according to claim 2, characterized in that: The rotating member (41) comprises: a shaft body (43), the middle portion of which is rotatably disposed on the storage surface (31); the shaft body (43) has an upper end and a lower end, the upper end is located above the storage surface (31), and the lower end is located below the storage surface (31); the shaft body (43) is perpendicular to the storage surface (31), and the fixing member (42) is disposed at the upper end of the shaft body (43); A rod body (44), the middle portion of which is fixedly arranged at the lower end of the shaft body (43), and the rod body (44) is perpendicular to the shaft body (43); A counterweight block (45) is slidably disposed on the rod body (44).

6. A welding device for producing a fifth wheel of an automobile according to claim 2, characterized in that: The storage surface (31) is provided with a plurality of air holes (32), the air holes (32) being used for suction or blowing. When suctioning, the air holes (32) are used to adsorb and fix the traction seat body (1), and when blowing, the air holes (32) are used to form an air film between the traction seat body (1) and the storage surface (31).

7. A welding device for producing a fifth wheel of an automobile according to claim 1, characterized in that: Also includes: A cleaning assembly (5) is arranged on the frame (2); the cleaning assembly (5) is located below the storage rack (3); and the cleaning assembly (5) is used to clean the traction seat body (1).

8. A welding device for producing a fifth wheel of an automobile according to claim 7, characterized in that: The cleaning component (5) comprises: A nozzle (51) is arranged on the frame (2), and the nozzle (51) is used to spray fluid to clean the fifth wheel body (1).

9. The welding device for producing a fifth wheel of an automobile according to claim 1, characterized in that: The welding assembly (6) comprises: A welding robot arm (61) is arranged on the frame (2); The welding head (62) is arranged on the welding mechanical arm (61).

10. The welding device for producing a fifth wheel of an automobile according to claim 6, characterized in that: A plurality of the air holes (32) are evenly distributed on the placement surface (31), and the direction in which air is blown out of the air holes (32) is perpendicular to the placement surface (31).

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