A welding device for automobile manufacturing parts

Abstract

The application relates to the field of automobile manufacturing welding technology, in particular to a part welding device for automobile manufacturing. The device comprises a supporting installation plate and a fixed installation plate connected through a cross installation frame, the fixed installation plate is provided with a fixed installation ring at four corners, the supporting installation plate is symmetrically provided with U-shaped installation cylinders at two sides, the U-shaped installation cylinders are provided with U-shaped contact plates at lower ends and are provided with detachable flow blocking cover plates at upper ends. Liquid cooling heat dissipation mechanisms are arranged on the U-shaped contact plates, flue gas extraction mechanisms are arranged on the U-shaped installation cylinders, and multi-point deformation suppression compensation mechanisms are arranged on the outer sides. Multi-degree-of-freedom adjustment welding mechanisms are arranged on the supporting installation plate. The application realizes deformation prevention through cooperation of heat source control and stress compensation, adopts semi-closed wrapping type flue gas extraction, effectively improves welding quality and size precision, improves the working environment, has high universality, and is suitable for automatic welding operation of various automobile parts.

Description

Technical Field

[0001] This invention relates to the field of welding technology in automobile manufacturing, and in particular to a welding apparatus for automobile manufacturing parts. Background Technology

[0002] In automobile manufacturing, welding is the core process for reliably connecting various metal parts, and its quality directly determines the structural strength, driving safety, and long-term service life of the entire vehicle. With the continuous advancement of automotive technology, increasingly higher demands are being placed on the dimensional accuracy, mechanical property consistency, and automation and intelligence levels of welded parts. Traditional welding equipment has gradually revealed many insurmountable technical defects in practical applications and can no longer fully meet the high-quality production needs of modern automobile manufacturing.

[0003] In terms of welding quality control, existing equipment generally adopts single-dimensional anti-deformation measures, either limiting component deformation solely through rigid clamp pre-compression or using simple air cooling for localized heat dissipation. This fails to establish a synergistic anti-deformation system combining heat source control and stress compensation. The large amount of heat generated during welding cannot be quickly and evenly dissipated, leading to severe localized heat accumulation in the welding area of ​​components, which easily triggers phase transformations and irreversible plastic deformation in the material structure. Simultaneously, the complex internal stress field formed by uneven welding heat input cannot be dynamically compensated in real time, easily generating imperceptible micro-deformations. Subsequent stress release during cooling further exacerbates warping, twisting, and even cracking of components, severely affecting dimensional tolerances and weakening the mechanical properties of the welded joint, increasing the cost and time required for subsequent straightening and rework processes.

[0004] Regarding the working environment and welding accuracy assurance, the existing welding equipment's fume collection system mostly adopts a single-point exhaust or side exhaust structure, which has a limited fume collection range and uneven airflow distribution. The welding fumes are easy to spread to the surroundings, which not only seriously pollutes the air at the work site and endangers the health of operators, but also obstructs the view of the welding area, interfering with the operator's observation of the molten pool and the precise positioning of the welding torch, resulting in frequent welding defects such as incomplete welds, missed welds, and weld deviations, significantly reducing the first-pass yield rate of welding.

[0005] In terms of versatility and integration, existing welding equipment is mostly designed for specific applications, making it difficult to flexibly adapt to the welding needs of automotive parts of different specifications and shapes. Frequent changes of tooling fixtures are required for different workpieces, resulting in low production changeover efficiency. Furthermore, the welding mechanism has limited freedom of movement, making it difficult to perform high-precision welding operations on complex curved welds and spatial welds. Functions such as heat dissipation, fume extraction, and welding are often distributed, requiring the installation of numerous auxiliary devices on-site. Synchronous collaboration between systems is difficult, leading to cumbersome workflows, large equipment footprint, and high operating and maintenance costs.

[0006] The present invention aims to solve the technical problems existing in the prior art. To this end, a welding device for automobile manufacturing parts is proposed. Summary of the Invention

[0007] The purpose of this invention is to provide a welding device for automotive parts manufacturing to solve the technical problems existing in the prior art.

[0008] By adopting the above technical solution, the present invention has the following beneficial effects: This invention provides a welding device for automotive parts, comprising a support mounting plate, a fixed mounting plate positioned opposite one side of the support mounting plate, a cross-shaped mounting bracket connecting the fixed mounting plate and the support mounting plate, and fixed mounting rings at each of the four corners of the fixed mounting plate. The device also includes: U-shaped mounting cylinders are symmetrically arranged on both sides of the support mounting plate. A U-shaped contact plate is provided at the lower end of the U-shaped mounting cylinder, and a baffle plate is provided at the upper end of the U-shaped mounting cylinder. Several positioning mounting holes are provided at the upper end of the U-shaped mounting cylinder, and positioning mounting posts are provided on the lower side of the baffle plate to match the positioning mounting holes. The heat dissipation mechanism is installed on the U-shaped contact plate; The flue gas extraction mechanism is installed on the U-shaped mounting cylinder; Two sets of deformation suppression and compensation mechanisms are respectively set on the outside of the U-shaped mounting cylinder; Adjust the welding mechanism, which is mounted on the support plate.

[0009] As a further aspect of the present invention: the heat dissipation mechanism includes a transverse guide groove disposed inside the U-shaped contact plate, and a plurality of longitudinal guide grooves are disposed at equal intervals on the upper and lower sides of the transverse guide groove, and both the transverse guide groove and the longitudinal guide groove are disposed along the U-shaped direction of the U-shaped contact plate. As a further aspect of the present invention: uniform flow-slowing cavities are provided in the U-shaped contact plates at both ends of the transverse and longitudinal flow-slowing channels, and inlet pipes and outlet pipes are respectively connected to the two uniform flow-slowing cavities at both ends of the U-shaped contact plates. As a further embodiment of the present invention: a plurality of U-shaped buffer rubber sheets are semi-embedded on the lower side of the U-shaped contact plate; As a further embodiment of the present invention: the flue gas extraction mechanism includes a U-shaped guide cavity provided inside the wall of the U-shaped mounting cylinder, and a plurality of guide holes are uniformly provided on the inner side of the U-shaped mounting cylinder opposite to the U-shaped guide cavity; As a further embodiment of the present invention: an exhaust duct is provided on the outer side of the U-shaped mounting cylinder, an exhaust fan is connected in series on the exhaust duct, and the exhaust duct is connected to the U-shaped guide cavity; As a further aspect of the present invention: the deformation suppression and compensation mechanism includes an arc-shaped mounting column horizontally arranged on the outer side of the U-shaped mounting cylinder, and a plurality of deformation suppression modules are arranged at equal angles on the arc-shaped mounting column; As a further embodiment of the present invention: the deformation suppression module includes a fixed mounting frame that is set at equal angles on the arc-shaped mounting column, a swinging link is provided on the fixed mounting frame via a primary drive shaft, a rotating link is provided at the outer end of the swinging link via a secondary drive shaft, an arc-shaped elastic rod is provided at the outer end of the rotating link, a ball bushing is provided at the outer end of the arc-shaped elastic rod, and a ball bushing is provided at the outer end of the ball bushing, which is fitted with a ball bushing to abut against the ball bushing. As a further embodiment of the present invention: the adjusting welding mechanism includes adjusting mounting columns symmetrically arranged at the front and rear ends of the supporting mounting plate, the adjusting mounting columns being directly opposite the front and rear ends of the U-shaped mounting cylinder, and the adjusting mounting columns being symmetrically arranged with spacing adjusting telescopic columns, the outer ends of the spacing adjusting telescopic columns being connected to the front and rear ends of the U-shaped mounting cylinder. As a further embodiment of the present invention: several directional guide tubes are horizontally arranged at equal intervals on the adjusting mounting columns on both sides of the spacing adjusting telescopic column, and directional guide tubes are arranged in both the front and rear sections of the U-shaped mounting cylinder directly opposite the directional guide tubes. As a further embodiment of the present invention: a steering drive motor is provided on the lower side of the support mounting plate, a steering mounting bracket is rotatably provided at the lower end of the steering drive motor, a main swing arm and a secondary swing arm are connected in series by two connecting drive shafts, and a welding part is provided at the outer end of the secondary swing arm through a working drive shaft.

[0010] Compared with the prior art, the beneficial effects of the present invention are: This approach completely solves the welding deformation problem from both heat source and mechanical perspectives, significantly improving the welding quality of components. A dual anti-deformation collaborative system is constructed: On the one hand, through the liquid cooling heat dissipation structure in direct contact with the welding area by the U-shaped contact plate, and by utilizing the crisscrossing guide channels and the uniform slow-flow cavities at both ends, uniform heat dissipation without dead angles is achieved on the entire contact surface, and the accumulated heat of welding is quickly dissipated, thereby reducing the phase transformation and plastic deformation of the parts caused by local overheating from the root cause; on the other hand, through the multi-point deformation suppression and compensation modules arranged at equal angles, dynamic stress resistance is provided to the parts during the welding process. The arc-shaped elastic rod can adapt to the stress changes during the welding process, compensate for local stress imbalance, and suppress the micro-deformation caused by uneven heating. The synergistic effect of the two significantly reduces the deformation of the parts after welding, thereby ensuring the dimensional accuracy and mechanical properties of the parts.

[0011] Ensuring the mechanical properties and dimensional accuracy of components: This avoids defects such as warping and cracking of components caused by thermal stress concentration in traditional welding, ensures that the dimensional tolerances of automotive components meet design requirements after welding, and reduces the microstructure deterioration of the welding heat-affected zone, thus guaranteeing the overall mechanical properties and service life of the components.

[0012] Achieving efficient, encapsulated fume extraction comprehensively improves the working environment and welding precision. Significantly improves flue gas collection efficiency: The U-shaped guide cavity, combined with evenly distributed guide holes, and the semi-enclosed working space formed by the baffle cover, U-shaped mounting cylinder, and components, achieves enveloping and directional extraction of welding fumes. This solves the problems of flue gas diffusion and incomplete collection that exist in traditional single-point ventilation. When used with external gas purification equipment, it can thoroughly purify the working air and protect the health of operators.

[0013] Ensuring a clear field of vision during welding operations: Real-time removal of welding fumes prevents fumes from obscuring the welding area, eliminates interference from fumes on welding torch positioning and observation of the welding process, effectively reduces welding defects caused by unclear vision, and improves the welding qualification rate.

[0014] It possesses strong versatility and adaptability to various scenarios, meeting diverse welding needs. Adaptable to automotive parts of different sizes: The spacing between the two U-shaped mounting cylinders can be flexibly adjusted by the adjustable telescopic column. Combined with the guiding structure of the directional guide column and directional guide cylinder, the adjustment process is guaranteed to be smooth and accurate, and it can adapt to the welding operations of automotive parts of different specifications and shapes.

[0015] Covering complex welds and various operating scenarios: The multi-degree-of-freedom adjustable welding mechanism integrates steering drive, double swing arm swing and welding part angle adjustment functions, which can realize three-dimensional spatial precise positioning of welding points and multi-angle operation, and can meet the welding requirements of complex curved welds and spatial welds; at the same time, the device can be connected to various mobile devices such as robotic arms and gantry cranes through fixed installation rings, which is suitable for batch welding in automated production lines, as well as on-site mobile welding operations of large automotive parts.

[0016] Integrated design improves operational efficiency and equipment reliability Simplify the work process and improve production efficiency: The heat dissipation, fume extraction, deformation suppression and welding functions are highly integrated into one unit. There is no need to set up additional scattered auxiliary equipment on the welding site. During the welding process, all mechanisms work synchronously and collaboratively, realizing one-stop completion of welding operations and significantly shortening the welding cycle of a single workpiece.

[0017] Improved equipment operation stability and workpiece protection: The U-shaped buffer rubber sheet embedded on the lower side of the U-shaped contact plate can avoid hard impact with the parts when the device is placed, protecting the workpiece surface from damage. At the same time, it can be fully embedded after compression without affecting the heat dissipation and contact effect. The overall structure is compact, and each moving part adopts a precise guidance and drive structure, which results in high operational reliability and low maintenance cost. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a top-side view of a welding device for automotive parts manufacturing.

[0020] Figure 2 This is a side view of a welding device for automotive parts manufacturing.

[0021] Figure 3 This is a schematic diagram of the structure of a U-shaped mounting cylinder, a U-shaped contact plate, and a flow deflector in a welding device for automotive parts manufacturing.

[0022] Figure 4 This is a cross-sectional schematic diagram of a welding device for automotive parts in a uniform slow-flow cavity.

[0023] Figure 5 This is a cross-sectional schematic diagram of a welding device for automotive parts at the transverse guide groove.

[0024] Figure 6 This is a schematic diagram of the structure of a U-shaped mounting cylinder and a U-shaped contact plate in a welding device for automotive parts manufacturing.

[0025] Figure 7 This is a schematic diagram of the structure of a baffle plate in a welding device for automotive parts manufacturing.

[0026] Figure 8 This is a cross-sectional schematic diagram of a welding device for automotive parts in a U-shaped guide cavity.

[0027] Figure 9 This is a schematic diagram of the deformation suppression module in a welding device for automotive parts.

[0028] Figure 10 for Figure 9 An enlarged schematic diagram of point a in the middle.

[0029] Figure 11 This is a schematic diagram of the structure of the adjusting welding mechanism in a welding device for automotive parts manufacturing.

[0030] 1-Support mounting plate, 2-Cross mounting bracket, 3-Fixed mounting plate, 4-Fixed mounting ring, 5-Adjustable mounting column, 6-Spacing adjustable telescopic column, 7-U-shaped mounting cylinder, 8-U-shaped contact plate, 9-Baffle cover, 10-Exhaust fan, 11-Exhaust duct, 12-Arc-shaped mounting column, 13-Swing linkage, 14-U-shaped buffer rubber sheet, 15-Main swing arm, 16-Welding part, 17-Guide column, 18-Inlet pipe, 19-Outlet pipe, 20-Guide hole, 21-Positioning Mounting hole, 22-U-shaped guide cavity, 23-Longitudinal guide groove, 24-Uniform flow-slowing cavity, 25-Transverse guide groove, 26-Positioning mounting post, 27-Fixed mounting bracket, 28-First-stage drive shaft, 29-Second-stage drive shaft, 30-Rotating connecting rod, 31-Arc-shaped elastic rod, 32-Ball bushing, 33-Holding ball shaft, 34-Directional guide tube, 35-Steering drive motor, 36-Steering mounting bracket, 37-Connecting drive shaft, 38-Secondary swing arm, 39-Working drive shaft. Detailed Implementation

[0031] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0033] Example 1, please refer to Figure 1 , Figure 2 In this embodiment of the invention, a welding device for automotive manufacturing parts includes a support mounting plate 1, a fixed mounting plate 3 is disposed opposite one side of the support mounting plate 1, a cross mounting bracket 2 is connected between the fixed mounting plate 3 and the support mounting plate 1, and fixed mounting rings 4 are disposed on each of the four corners of the fixed mounting plate 3, and further includes: U-shaped mounting cylinders 7 are symmetrically arranged on both sides of the support mounting plate 1, and a U-shaped contact plate 8 is provided at the lower end of the U-shaped mounting cylinder 7; The heat dissipation mechanism is installed on the U-shaped contact plate 8; The flue gas extraction mechanism is installed on the U-shaped mounting cylinder 7; Two sets of deformation suppression and compensation mechanisms are respectively set on the outside of the U-shaped mounting cylinder 7; Adjust the welding mechanism, which is set on the support mounting plate 1.

[0034] The device is connected to an externally installed mobile device via the fixed mounting plate 3 and the fixed mounting ring 4 thereon to perform mobile welding operations. The external mobile device can be a robotic arm, a gantry crane, etc. First, place the device in the area where the automotive parts are to be welded. Adjust the distance between the two U-shaped mounting cylinders 7 according to the size of the automotive parts to be welded so that the two sets of deformation suppression and compensation mechanisms can contact the automotive parts. As welding proceeds, the fume extraction mechanism will envelop and extract the fumes generated at the welding point to ensure that the air in the welding area is clean and the visibility is clear. Then, the heat dissipation mechanism will contact the automotive parts near the welding point to transfer and dissipate the heat in a timely manner, so as to prevent the automotive parts from deforming and undergoing phase changes due to welding heat accumulation, which would affect the performance of the automotive parts after welding. During the welding process, the two sets of deformation suppression and compensation mechanisms make multi-point stress contact with the automotive parts near the welding point, suppressing the micro-deformation caused by uneven heating during welding, compensating for local stress imbalance, so that the automotive parts are subjected to uniform force and ensuring the quality of the automotive parts after welding.

[0035] Example 2, based on Example 1, please refer to... Figures 3 to 10 In this embodiment of the invention, the heat dissipation mechanism includes a transverse guide groove 25 disposed inside the U-shaped contact plate 8, and a plurality of longitudinal guide grooves 23 are disposed at equal intervals on the upper and lower sides of the transverse guide groove 25. Both the transverse guide groove 25 and the longitudinal guide grooves 23 are disposed along the U-shaped direction of the U-shaped contact plate 8. The U-shaped contact plates 8 at both ends of the transverse guide channel 25 and the longitudinal guide channel 23 are provided with uniform flow-slowing cavities 24. The two uniform flow-slowing cavities 24 at both ends of the U-shaped contact plate 8 are respectively connected to the water inlet pipe 18 and the water outlet pipe 19. Several U-shaped buffer rubber sheets 14 are semi-embedded on the lower side of the U-shaped contact plate 8.

[0036] Since the U-shaped contact plate 8 is in direct contact with the automotive parts to be welded, the heat generated at the welding point is first transferred to the U-shaped contact plate 8 through heat transfer. The water inlet pipe 18 and water outlet pipe 19 at both ends of the U-shaped contact plate 8 are connected to the external water supply and return equipment, so that water continuously enters the uniform slow flow chamber 24 at one end from the water inlet pipe 18, and enters the uniform slow flow chamber 24 at the other end through the horizontal guide groove 25 and the vertical guide groove, and is finally discharged from the water outlet pipe 19. The heat on the automotive parts is absorbed and discharged in time, reducing the phase change and deformation degree of the automotive parts before and after welding. The U-shaped buffer rubber sheet 14 can prevent hard impact when the U-shaped contact plate 8 is placed. After placement, it is completely embedded in the lower side of the U-shaped contact plate 8 due to compression, without affecting the direct contact between the U-shaped contact plate 8 and the automotive parts.

[0037] The flue gas extraction mechanism includes a U-shaped guide cavity 22 set inside the wall of the U-shaped mounting cylinder 7. A plurality of guide holes 20 are evenly arranged on the inner side of the U-shaped mounting cylinder 7 opposite to the U-shaped guide cavity 22. An exhaust duct 11 is set on the outer side of the U-shaped mounting cylinder 7. An exhaust fan 10 is connected in series on the exhaust duct 11. The exhaust duct 11 is connected to the U-shaped guide cavity 22. The upper end of the U-shaped mounting cylinder 7 is provided with a baffle plate 9. The upper end of the U-shaped mounting cylinder 7 is provided with a plurality of positioning mounting holes 21. The lower side of the baffle plate 9 is provided with positioning mounting posts 26 to match the positioning mounting holes 21.

[0038] Since the welding process generates fumes, the exhaust duct 11 is connected to an external gas purification device. The exhaust fan 10 is started to extract the gas from the U-shaped guide cavity 22 at high speed. Several guide holes 20 on the inner side of the U-shaped mounting cylinder 7 evenly draw in the fumes, ensuring that the air inside the device is fresh and the field of vision is clear. The baffle plate 9 installed by the positioning mounting column 26 and the positioning mounting hole 21 can work with the U-shaped mounting cylinder 7 and the automotive parts to form a relatively closed environment, ensuring the efficiency of fumes intake.

[0039] The deformation suppression and compensation mechanism includes an arc-shaped mounting column 12 horizontally arranged on the outer side of the U-shaped mounting cylinder 7. Several deformation suppression modules are arranged at equal angles on the arc-shaped mounting column 12. Each deformation suppression module includes a fixed mounting frame 27 arranged at equal angles on the arc-shaped mounting column 12. A swinging link 13 is arranged on the fixed mounting frame 27 via a primary drive shaft 28. A rotating link 30 is arranged at the outer end of the swinging link 13 via a secondary drive shaft 29. An arc-shaped elastic rod 31 is arranged at the outer end of the rotating link 30. A ball bearing sleeve 32 is arranged at the outer end of the arc-shaped elastic rod 31. A ball bearing 33 is arranged in conjunction with the ball bearing sleeve 32.

[0040] Several displacement suppression modules, set at equal angles, are driven by their respective primary drive shafts 28. The swing link 13 rotates by a certain angle, and then the rotating link 30 rotates by a certain angle under the drive of the secondary drive shaft 29, causing the arc-shaped elastic rod 31 to deform to a certain extent. At this time, multiple abutment ball shafts 33 are in multi-point contact with the automotive parts. As welding progresses, the internal stress of the automotive parts changes with the changes in welding state and the transfer of welding heat, which can easily lead to uncontrollable deformation. At this time, the multi-point contact abutment ball shafts 33, under the action of the arc-shaped elastic rod 31, stabilize the internal stress of the automotive parts and limit the uncontrollable deformation. As the device moves and the temperature decreases, the internal stress gradually returns to stability. After the device moves, the deformation of the automotive parts is significantly reduced, improving the welding quality of the automotive parts.

[0041] Example 3, based on Example 2, please refer to... Figure 11In this embodiment of the invention, the adjusting welding mechanism includes adjusting mounting columns 5 symmetrically arranged at the front and rear ends of the supporting mounting plate 1. The adjusting mounting columns 5 are directly opposite the front and rear ends of the U-shaped mounting cylinder 7. The adjusting mounting columns 5 are symmetrically arranged with spacing adjusting telescopic columns 6. The outer ends of the spacing adjusting telescopic columns 6 are connected to the front and rear ends of the U-shaped mounting cylinder 7. Several directional guide cylinders 34 are horizontally arranged at equal intervals on the adjusting mounting columns 5 on both sides of the spacing adjusting telescopic columns 6. The front and rear sections of the U-shaped mounting cylinder 7 directly opposite the directional guide cylinders 34 are provided with directional guide columns 17. A steering drive motor 35 is provided on the lower side of the support mounting plate 1. A steering mounting bracket 36 is rotatably provided at the lower end of the steering drive motor 35. A main swing arm 15 and a secondary swing arm 38 are connected in series by two connecting drive shafts 37. A welding part 16 is provided at the outer end of the secondary swing arm 38 through a working drive shaft 39.

[0042] By adjusting the length of the telescopic column 6, the distance between the two U-shaped mounting cylinders 7 can be adjusted to adapt to the welding operations of automotive parts of different sizes. With the cooperation of the directional guide column 17 and the directional guide cylinder 34, the distance adjustment process is ensured to be continuous and stable. The steering drive motor 35 drives the steering mounting bracket 36 to rotate and change position, while adjusting the angle of the two connecting drive shafts 37. The main swing arm 15 and the auxiliary swing arm 38 cooperate with the angle adjustment of the two connecting drive shafts 37 to adjust the distance between the welding part 16 and the welding point. According to different welding requirements, the angle of the welding part 16 is adjusted by the working drive shaft 39 to ensure that diverse welding requirements are met.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0044] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A parts welding device for automobile manufacturing, comprising a support mounting plate, a fixed mounting plate is arranged opposite to one side of the support mounting plate, a cross mounting frame is connected and arranged between the fixed mounting plate and the support mounting plate, a fixed mounting ring is arranged on each corner of the fixed mounting plate, characterized in that, Also includes: U-shaped mounting cylinders are symmetrically arranged on both sides of the support mounting plate, and a U-shaped contact plate is provided at the lower end of the U-shaped mounting cylinder; The heat dissipation mechanism is installed on the U-shaped contact plate; The flue gas extraction mechanism is installed on the U-shaped mounting cylinder; Two sets of deformation suppression and compensation mechanisms are respectively set on the outside of the U-shaped mounting cylinder; Adjust the welding mechanism, which is mounted on the support plate; The heat dissipation mechanism includes a transverse guide groove inside the U-shaped contact plate, and several longitudinal guide grooves are equally spaced on the upper and lower sides of the transverse guide groove. Both the transverse guide groove and the longitudinal guide groove are arranged along the U-shaped direction of the U-shaped contact plate. The transverse and longitudinal guide channels are provided with uniform flow-slowing cavities in the U-shaped contact plates at both ends. The two uniform flow-slowing cavities at the front and rear ends of the U-shaped contact plates are respectively connected to the inlet pipe and the outlet pipe. The deformation suppression and compensation mechanism includes an arc-shaped mounting column horizontally arranged on the outside of the U-shaped mounting cylinder, and several deformation suppression modules are arranged at equal angles on the arc-shaped mounting column. The deformation suppression module includes a fixed mounting frame set at equal angles on an arc-shaped mounting column. A swing link is set on the fixed mounting frame via a primary drive shaft. A rotating link is set at the outer end of the swing link via a secondary drive shaft. An arc-shaped elastic rod is set at the outer end of the rotating link. A ball bushing is set at the outer end of the arc-shaped elastic rod. A ball bushing is set in conjunction with the ball bushing to abut against the ball bushing.

2. The welding device for a part of an automobile according to claim 1, wherein The lower side of the U-shaped contact plate is partially embedded with several U-shaped buffer rubber sheets.

3. The device as claimed in claim 1, wherein The flue gas extraction mechanism includes a U-shaped guide cavity set inside the wall of the U-shaped mounting cylinder, and a number of guide holes are evenly arranged on the inner side of the U-shaped mounting cylinder opposite the U-shaped guide cavity.

4. The apparatus according to claim 3, wherein An exhaust duct is provided on the outside of the U-shaped mounting cylinder, and an exhaust fan is connected in series on the exhaust duct. The exhaust duct is connected to the U-shaped flow guide cavity. A baffle plate is provided directly opposite the upper end of the U-shaped mounting cylinder. Several positioning mounting holes are provided at the upper end of the U-shaped mounting cylinder. Positioning mounting posts are provided on the lower side of the baffle plate to match the positioning mounting holes.

5. The apparatus according to claim 1, wherein The adjusting welding mechanism includes adjusting mounting columns symmetrically arranged at the front and rear ends of the supporting mounting plate. The adjusting mounting columns are directly opposite the front and rear ends of the U-shaped mounting cylinder. The adjusting mounting columns are symmetrically arranged with spacing adjusting telescopic columns. The outer ends of the spacing adjusting telescopic columns are connected to the front and rear ends of the U-shaped mounting cylinder. Several directional guide cylinders are horizontally arranged at equal intervals on the adjusting mounting columns on both sides of the spacing adjusting telescopic columns. The front and rear sections of the U-shaped mounting cylinder directly opposite the directional guide cylinders are both provided with directional guide columns.

6. The welding apparatus for automotive manufacturing parts according to claim 5, characterized in that, A steering drive motor is provided on the lower side of the support mounting plate. A steering mounting bracket is rotatably mounted on the lower end of the steering drive motor. A main swing arm and a secondary swing arm are connected in series via two connecting drive shafts. A welding part is provided on the outer end of the secondary swing arm via a working drive shaft.

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