An automatic welding equipment for automobile parts

Abstract

The present application relates to the technical field of automobile parts automatic welding, in particular to an automobile parts automatic welding device, comprising: a welding mechanism and a protection mechanism are arranged on the upper side of the processing table, a scraping mechanism is arranged on the welding mechanism; the present application can realize the whole process processing of rim flash butt welding and flash scraping through only one clamping, not only eliminates the time loss of workpiece transfer and repeated clamping between different equipment, makes the production process more compact and coherent, and also effectively avoids the scratching damage of the rim with high-temperature flash to the automatic conveying system and adjacent workpieces during conveying; it can also effectively protect the high-temperature debris splashed during rim welding and flash scraping, and after processing is completed, the welded and formed rim can be automatically guided, limited and supported for taking, so as to realize the seamless connection of feeding and discharging processes, and significantly improve the stability and production efficiency of continuous operation of the equipment.

Description

Technical Field

[0001] This invention relates to the field of automatic welding technology for automotive parts, specifically to an automatic welding device for automotive parts. Background Technology

[0002] As a core component of automobile wheels, the wheel rim is a precisely designed ring structure. Its main function is to support and fix the tire, ensuring its secure installation and maintaining long-term stable airtightness. Flash butt welding technology is a key means of welding and forming closed-loop wheel rims. Due to its significant advantages in structural strength and production efficiency, it is widely used in the manufacturing of steel wheels for most economy cars and family vehicles.

[0003] In the existing technology, when performing flash butt welding on wheel rims, the two ends of the wheel rim materials to be welded are first stably clamped on the two fixtures of the welding machine. Then, the workpiece is powered on and the two end faces are gradually brought closer together. During this process, a large number of dazzling flashes of sparks are generated at the contact point of the end faces. After the end faces are fully heated, the two end faces are then violently squeezed together with considerable force. Under the action of upsetting force, the liquid metal and oxides on the end faces are squeezed out of the weld and form a raised flash. At the same time, the metal in the high-temperature plastic state inside the workpiece will fuse together under great pressure and form a strong metallurgical bond. Finally, after the power is turned off and the workpiece is cooled, a high-quality weld with a strength comparable to that of the base material can be obtained.

[0004] However, the traditional flash butt welding method for wheel rims has the following problems: 1. In the existing technology, the protruding burrs on the wheel rims after flash butt welding need to be scraped off. Usually, the welded wheel rims need to be unclamped from the welding station and transferred to the scraping equipment for reclamping via a conveyor. Then, the protruding burrs on the wheel rims are scraped off by the scraping structure. The above step-by-step operation not only increases the auxiliary time for repeated positioning and clamping of the workpiece, but also affects the continuity of the production process, resulting in insufficient connection between processes and restricting the overall production efficiency; 2. In the existing technology, hard and irregularly shaped high-temperature burrs will form at the weld seam of the welded wheel rims. When the wheel rims are transferred between stations, the sharp burrs in a high-temperature state will come into direct contact with the roller surface of the automated conveyor system or the mechanical grippers. This may not only cause scratches and indentations to the working surface of the conveyor device, but may also collide and scrape with the surface of adjacent wheel rims during the conveying process, resulting in secondary damage to the surface of the wheel rims, affecting the appearance quality of the product and the stability of the equipment operation. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic welding equipment for automotive parts, comprising a processing table for welding wheel rims, wherein a welding mechanism and a protective mechanism are provided on the upper side of the processing table, and a scraping mechanism is provided on the welding mechanism.

[0006] The protective mechanism includes a lifting and adjusting part installed on the upper side of the processing table, an adjusting and protective part installed on the lifting and adjusting part to shield high-temperature debris, and a limiting unloading part installed on the adjusting and protective part to lift and unload the formed rim.

[0007] The welding mechanism includes a fixed platform fixedly mounted on the upper side of the processing table. A horizontal adjustment part for left and right movement adjustment is provided on the upper side of the fixed platform. An adjustment support part for supporting the guide wheel rim is provided on the rear side of the horizontal adjustment part. A lifting drive part for lifting adjustment is provided on the upper side of the horizontal adjustment part. A clamping and positioning part for stabilizing and holding the wheel rim is provided on the lifting drive part.

[0008] The scraping mechanism includes a telescopic drive unit located in front of the lifting drive unit and used for front-to-back adjustment. The telescopic drive unit is provided with an alignment scraping part for scraping off the protruding flying edge at the weld seam of the wheel rim.

[0009] Preferably, the lifting adjustment unit includes two sets of guide rails symmetrically fixed on the upper side of the processing table. Each set consists of front and rear symmetrical guide rails. An electric slider that moves up and down is slidably mounted on the guide rail. A fixing plate is fixedly mounted on the side of the front and rear symmetrical electric sliders away from the corresponding guide rail.

[0010] Preferably, the adjustable protective part includes a U-shaped cover that is fixedly disposed between left and right symmetrical fixing plates, a top protective plate is fixedly disposed on the upper side of the U-shaped cover, a support plate is fixedly disposed on the front side inside the U-shaped cover, and a reinforcing plate is fixedly disposed on the lower side of the support plate.

[0011] Preferably, the limiting unloading part includes a cylinder fixedly installed on the rear side of the U-shaped cover. The telescopic end of the cylinder is fixedly provided with a mounting plate that moves back and forth and is located inside the U-shaped cover. The rear side of the mounting plate is symmetrically provided with guide rods that are slidably connected to the U-shaped cover. The front side of the mounting plate is symmetrically provided with U-shaped support plates located on the upper side of the support plate.

[0012] Preferably, the lateral adjustment part includes a U-shaped platform fixedly mounted on the upper side of the fixed platform by a pad, a limiting groove extending left and right is opened on the inner side of the U-shaped platform, and cylinders two are fixedly mounted symmetrically on the left and right sides of the U-shaped platform. A sliding block that moves left and right and is slidably connected with the limiting groove is fixedly mounted on the telescopic end of cylinder two, and a connecting plate one is fixedly mounted on the rear side of the sliding block.

[0013] Preferably, the adjusting support includes a support platform fixedly installed on the rear side of the connecting plate. On the opposite sides of the two support platforms, multiple spring rods that move up and down are uniformly and elastically slidably arranged through a support. The upper ends of the multiple spring rods are jointly fixedly installed with an L-shaped adjusting frame. Multiple guide wheels are uniformly and evenly arranged on the upper end of the L-shaped adjusting frame near the corresponding support platform.

[0014] Preferably, the lifting drive unit includes an L-shaped mounting platform fixedly mounted on the upper side of the U-shaped platform. The vertical section of the L-shaped mounting platform has a through groove running from front to back. A cylinder three is fixedly mounted on the upper side of the horizontal section of the L-shaped mounting platform. A U-shaped lifting plate that moves up and down is fixedly mounted on the telescopic end of the cylinder three. A plurality of guide rods two that are slidably connected to the horizontal section of the L-shaped mounting platform are evenly fixedly mounted on the upper side of the U-shaped lifting plate. A pressure plate with a through groove running from front to back is fixedly mounted on the rear side of the U-shaped lifting plate.

[0015] Preferably, the clamping and positioning part includes slide rods symmetrically fixedly arranged inside the U-shaped lifting plate. Two slide blocks that move left and right are arranged on the two slide rods. A clamping platform is fixedly arranged on the lower side of the slide blocks. A second linkage plate is fixedly arranged on the front side of the clamping platform. A linkage rod that slides up and down through the first linkage plate is symmetrically fixedly arranged on the lower side of the second linkage plate.

[0016] Preferably, the telescopic drive unit includes a U-shaped frame fixedly installed on the front side of the L-shaped mounting platform, a cylinder four fixedly installed on the front side of the U-shaped frame, a connecting plate that moves back and forth fixedly installed on the telescopic end of the cylinder four, and guide rods three that are slidably connected to the U-shaped frame symmetrically fixedly installed on the front side of the connecting plate.

[0017] Preferably, the alignment scraping part includes a lower scraper fixedly disposed on the rear side of the lower end of the connecting plate, a limiting plate fixedly disposed on the rear side of the upper end of the connecting plate, two spring rods that move up and down are symmetrically and elastically slidably disposed on the limiting plate, an upper scraper is fixedly disposed on the lower side of the two spring rods, a driven plate that cooperates with the pressure plate is fixedly disposed on the upper side of the two spring rods, and a top rod is fixedly disposed on the lower side of the driven plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention, through the cooperation of the welding mechanism and the scraping mechanism, can realize the entire process of flash welding and flash removal of wheel rims in just one clamping. This not only eliminates the time loss of transferring workpieces between different devices and repeated clamping, making the production process more compact and continuous, but also effectively avoids the scratch damage caused by wheel rims with high-temperature flash to the automated conveying system and adjacent workpieces during the conveying process. Thus, while improving production efficiency, it also ensures equipment safety and product quality.

[0019] 2. This invention, through the cooperation of a protective mechanism and a welding mechanism, can effectively protect against high-temperature debris splashing during the welding and flash removal of wheel rims. After processing, it can automatically guide and limit the material handling of the welded wheel rim, thereby smoothly delivering the formed wheel rim out of the workstation while removing the protective state. Simultaneously, it can complete the loading and clamping of new wheel rim workpieces, thus ensuring the safety and cleanliness of the processing process and achieving seamless connection of loading and unloading processes, significantly improving the stability and production efficiency of continuous equipment operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a partial cross-sectional schematic diagram of the protective mechanism.

[0022] Figure 3 This is a partial cross-sectional schematic diagram of the limiting unloading section.

[0023] Figure 4 This is a schematic diagram of the welding mechanism.

[0024] Figure 5 This is a side sectional view of part of the welding mechanism.

[0025] Figure 6 This is a schematic diagram of the transverse adjustment section.

[0026] Figure 7 This is a partial cross-sectional schematic diagram of the transverse adjustment section.

[0027] Figure 8 A schematic diagram of the structure for adjusting the support part.

[0028] Figure 9 This is a partial cross-sectional schematic diagram of the lifting drive unit.

[0029] Figure 10 This is a schematic diagram of the scraping mechanism.

[0030] Figure 11 This is a partial cross-sectional schematic diagram of the scraping mechanism.

[0031] In the diagram: 1. Processing table; 2. Wheel rim; 3. Protective mechanism; 31. Lifting adjustment unit; 311. Guide rail; 312. Electric slider; 313. Fixed plate; 32. Adjustable protective unit; 321. U-shaped cover; 322. Top protective plate; 323. Support plate; 33. Limiting unloading unit; 331. Cylinder 1; 332. Mounting plate; 333. U-shaped support plate; 4. Welding mechanism; 41. Fixed table; 42. Lateral adjustment unit; 421. U-shaped table; 422. Limiting groove; 423. Cylinder 2; 424. Sliding block; 425. Linking plate 1; 43. Adjustable support unit; 431. Support platform; 432. Spring 433. L-shaped adjusting frame; 434. Guide wheel; 44. Lifting drive unit; 441. L-shaped mounting platform; 442. Cylinder three; 443. U-shaped lifting plate; 444. Pressure plate; 45. Clamping and positioning unit; 451. Slide rod; 452. Slide seat; 453. Clamping platform; 454. Linkage plate two; 455. Linkage rod; 5. Scraping mechanism; 51. Telescopic drive unit; 511. U-shaped frame; 512. Cylinder four; 513. Connecting plate; 52. Alignment scraping unit; 521. Lower scraper; 522. Limiting plate; 523. Spring rod two; 524. Upper scraper; 525. Driven plate; 526. Top rod. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figure 1 and Figure 4 An automatic welding equipment for automotive parts includes a processing table 1 for welding wheel rims 2. A welding mechanism 4 and a protective mechanism 3 are provided on the upper side of the processing table 1, and a scraping mechanism 5 is provided on the welding mechanism 4.

[0034] Please see Figure 1 The protective mechanism 3 includes a lifting adjustment part 31 set on the upper side of the processing table 1, an adjustment and protection part 32 for shielding high-temperature debris on the lifting adjustment part 31, and a limiting unloading part 33 for lifting and unloading the formed rim 2 on the adjustment and protection part 32.

[0035] Please see Figure 1 and Figure 2The lifting adjustment unit 31 includes two sets of guide rails 311 that are symmetrically fixed on the upper side of the processing table 1. Each set consists of guide rails 311 that are symmetrical in front and back. An electric slider 312 that moves up and down is slidably arranged on the guide rail 311. A fixing plate 313 is fixedly arranged on the side of the symmetrical electric slider 312 that is away from the corresponding guide rail 311.

[0036] Please see Figure 1 , Figure 2 and Figure 3 The adjustable protective part 32 includes a U-shaped cover 321 that is fixedly disposed between left and right symmetrical fixed plates 313. A top protective plate 322 is fixedly disposed on the upper side of the U-shaped cover 321. A support plate 323 is fixedly disposed on the front side inside the U-shaped cover 321. A reinforcing plate is fixedly disposed on the lower side of the support plate 323.

[0037] The electric slider 312 drives the fixed plate 313 to move up and down along the guide rail 311 for adjustment. The fixed plate 313 then drives the U-shaped cover 321 and the top protective plate 322 to move up and down synchronously for adjustment.

[0038] When it is necessary to clamp the wheel rim 2 to be processed onto the welding mechanism 4, the U-shaped cover 321 and the top protective plate 322 are first moved to the highest point along the guide rail 311 by the electric slider 312 so that the welding mechanism 4 is not obstructed. Then, the wheel rim 2 to be processed is loaded onto the welding mechanism 4 by manual or external feeding equipment (not shown in the figure), and the wheel rim 2 to be processed is stably clamped by the welding mechanism 4.

[0039] When the welding mechanism 4 performs flash welding on the rim 2, the electric slider 312 drives the U-shaped cover 321 and the top protective plate 322 to move along the guide rail 311 to the lowest position, thereby shielding and protecting the high-temperature flash debris that splashes outward during the welding process through the U-shaped cover 321 and the top protective plate 322.

[0040] Please see Figure 1 and Figure 3 The limiting unloading part 33 includes a cylinder 331 fixedly installed on the rear side of the U-shaped cover 321. The telescopic end of the cylinder 331 is fixedly provided with a mounting plate 332 that moves back and forth and is located inside the U-shaped cover 321. The rear side of the mounting plate 332 is symmetrically provided with guide rods that are slidably connected to the U-shaped cover 321. The front side of the mounting plate 332 is symmetrically provided with U-shaped support plates 333 located on the upper side of the support plate 323.

[0041] When the rim 2 has completed welding and burr removal, cylinder 331 first moves the mounting plate 332 and U-shaped support plate 333 forward until the horizontal section of the U-shaped support plate 333 is fully inserted into the inner side of the formed rim 2. Then, the clamping mechanism 4 on the rim 2 is released, and the electric slider 312 moves the U-shaped cover 321 and U-shaped bracket upward until the horizontal section of the U-shaped support plate 333 is stably attached to the inner surface of the upper end of the rim 2, and the two vertical sections of the U-shaped support plate 333 stably limit the upper end of the rim 2. Then, cylinder 331 moves the U-shaped support plate 333 and the U-shaped support plate 332 and the U-shaped support plate 333 on it forward. The shaped rim 2 moves backward and resets to the upper side of the support plate 323. The support plate 323 can support and reinforce the U-shaped support plate 333 supporting the shaped rim 2 until the rim 2 is completely separated from the welding mechanism 4. At this time, the electric slider 312 can continue to drive the U-shaped cover 321 and the supported and limited rim 2 to move upward to the highest point. The shaped rim 2 is then transported upward to the upper part of the welding mechanism 4. The cylinder 331 can then drive the U-shaped support plate 333 to move forward again to facilitate the unloading of the shaped rim 2. At the same time, a new rim 2 to be processed can be loaded and clamped onto the welding mechanism 4.

[0042] It can effectively protect against high-temperature debris splashing during the welding and flash removal of the wheel rim 2. After processing, it can limit and support the welded wheel rim 2 for material handling. Thus, while removing the protection, the formed wheel rim 2 can be smoothly delivered out of the workstation. At the same time, the loading and clamping of new wheel rim 2 workpieces can be completed. This ensures the safety and cleanliness of the processing and achieves seamless connection of loading and unloading processes, significantly improving the stability and production efficiency of continuous operation of the equipment.

[0043] Please see Figure 1 , Figure 2 and Figure 4 The welding mechanism 4 includes a fixed platform 41 fixedly mounted on the upper side of the processing table 1. A horizontal adjustment part 42 for left and right movement adjustment is provided on the upper side of the fixed platform 41. An adjustment support part 43 for supporting the guide wheel rim 2 is provided on the rear side of the horizontal adjustment part 42. A lifting drive part 44 for lifting adjustment is provided on the upper side of the horizontal adjustment part 42. A clamping and positioning part 45 for stabilizing and clamping the wheel rim 2 is provided on the lifting drive part 44.

[0044] Please see Figure 4 , Figure 6 and Figure 7 The lateral adjustment unit 42 includes a U-shaped platform 421 fixedly mounted on the upper side of the fixed platform 41 by a pad. The inner side of the U-shaped platform 421 is provided with a left-right extending limiting groove 422. A second cylinder 423 is symmetrically fixedly mounted on the U-shaped platform 421. A sliding block 424 that moves left and right and is slidably connected to the limiting groove 422 is fixedly mounted on the telescopic end of the second cylinder 423. A first linkage plate 425 is fixedly mounted on the rear side of the sliding block 424.

[0045] The cylinder 423 can drive the sliding block 424 to move left and right along the limiting groove 422 for adjustment, and the sliding block 424 can drive the connecting plate 425 to move and adjust synchronously.

[0046] Please see Figure 4 , Figure 5 and Figure 8 The adjustable support part 43 includes a support platform 431 fixedly installed on the rear side of the connecting plate 425. The upper end of the support platform 431 is an arc surface that fits against the inner surface of the wheel rim. On the opposite side of the two support platforms 431, multiple spring rods 432 that move up and down are evenly and elastically slidably arranged through the support. The upper ends of the multiple spring rods 432 are all fixedly installed with an L-shaped adjustment frame 433. Multiple guide wheels 434 are evenly and evenly rotatably arranged on the side of the L-shaped adjustment frame 433 close to the corresponding support platform 431.

[0047] When the rim 2 to be processed is to be loaded, first place the rim 2 on the outside of the support platform 431, and make its two end faces to be welded at the top. Then place the rim 2 downward until its inner surface is stably in contact with the guide wheel 434. Under the elastic support of the spring rod 432, the guide wheel 434 on the L-shaped adjustment frame 433 can stably support the rim 2, so that its upper inner surface no longer contacts the upper surface of the support platform 431.

[0048] Please see Figure 4 , Figure 5 and Figure 9 The lifting drive unit 44 includes an L-shaped mounting platform 441 fixedly mounted on the upper side of the U-shaped platform 421. The vertical section of the L-shaped mounting platform 441 has a through groove running from front to back. A cylinder 3 442 is fixedly mounted on the upper side of the horizontal section of the L-shaped mounting platform 441. A U-shaped lifting plate 443 that moves up and down is fixedly mounted on the telescopic end of the cylinder 3 442. A plurality of guide rods 2 that slide and connect with the horizontal section of the L-shaped mounting platform 441 are evenly fixedly mounted on the upper side of the U-shaped lifting plate 443. A pressure plate 444 that runs through the through groove from front to back is fixedly mounted on the rear side of the U-shaped lifting plate 443.

[0049] Please see Figure 4 , Figure 5 , Figure 8 and Figure 9The clamping and positioning part 45 includes slide rods 451 that are symmetrically fixed inside the U-shaped lifting plate 443. Two slide blocks 452 that move left and right are provided on the two slide rods 451. A clamping platform 453 is fixedly provided on the lower side of the slide block 452. The lower end of the clamping platform 453 is an arc surface that fits against the outer surface of the wheel rim. The clamping platform 453 and the corresponding support platform 431 are connected to the secondary coil of the external transformer (not shown in the figure). A second linkage plate 454 is fixedly provided on the front side of the clamping platform 453. A linkage rod 455 that slides up and down through the corresponding linkage plate 425 is symmetrically fixed on the lower side of the second linkage plate 454.

[0050] When the wheel rim 2 to be processed is to be stably clamped, the U-shaped lifting plate 443 is driven to move downward by the cylinder 3 442. The U-shaped lifting plate 443 then drives the sliding block 452 and the clamping table 453 to move downward synchronously through the sliding rod 451. The lower end surface of the clamping table 453 then contacts and stably fits against the upper outer surface of the wheel rim 2. As the clamping table 453 continues to move downward, the wheel rim 2 drives the guide wheel 434 and the L-shaped adjusting bracket 433 to press down the spring rod 1 432 synchronously until the inner surface of the upper end of the wheel rim 2 stably fits against the upper end surface of the support table 431. Thus, the wheel rim 2 to be processed and its two ends to be welded are stably clamped on the processing table 1 by the cooperation of the clamping table 453 and the corresponding support table 431.

[0051] When welding is to be performed on the clamped rim 2, the secondary coil of the external transformer first powers the corresponding clamping platform 453, the support platform 431, and the clamped rim 2. Then, the cylinder 423 drives the two sliding blocks 424 and the connecting plate 425 to move relative to each other. The connecting plate 425 then drives the corresponding support platform 431 to move synchronously. Furthermore, the connecting plate 425 drives the corresponding connecting plate 454 and the clamping platform 453 to move synchronously along the sliding rod 451 via the connecting rod 455. Thus, the clamping platform 453 and the support platform 431 drive the two end faces of the rim 2 to be welded to move gradually. As the parts gradually approach each other, a large number of dazzling flashing debris will be generated at the end face contact point. The debris can be stably shielded and protected by the U-shaped cover 321 and the top protective plate 322. After the end face is fully heated, the two end faces of the rim 2 are violently squeezed together by the clamping table 453 and the support table 431. Under the action of the upsetting force, the liquid metal and oxides on the end face will be squeezed out of the weld and form a raised flash. At the same time, the metal in the high temperature plastic state inside the workpiece will be fused together under huge pressure and form a strong metallurgical bond. Finally, after power is cut off and cooling is performed, a high-quality weld with a strength comparable to that of the base material can be obtained.

[0052] Please see Figure 1 and Figure 10The scraping mechanism 5 includes a telescopic drive unit 51 located on the front side of the lifting drive unit 44 and used for front and rear adjustment. The telescopic drive unit 51 is provided with an alignment scraping unit 52 for scraping off the protruding flying edge at the weld of the rim 2.

[0053] Please see Figure 5 , Figure 10 and Figure 11 The telescopic drive unit 51 includes a U-shaped frame 511 fixedly installed on the front side of the L-shaped mounting platform 441. A cylinder 512 is fixedly installed on the front side of the U-shaped frame 511. A connecting plate 513 that moves back and forth is fixedly installed on the telescopic end of the cylinder 512. Guide rods 3 that are slidably connected to the U-shaped frame 511 are symmetrically fixed on the front side of the connecting plate 513.

[0054] Please see Figure 5 , Figure 10 and Figure 11 The alignment scraping part 52 includes a lower scraper 521 fixedly disposed on the rear side of the lower end of the connecting plate 513. A limiting plate 522 is fixedly disposed on the rear side of the upper end of the connecting plate 513. A spring rod 523 that moves up and down is symmetrically and elastically slidably disposed on the limiting plate 522. An upper scraper 524 is fixedly disposed on the lower side of the two spring rods 523. A driven plate 525 that presses against the pressure plate 444 is fixedly disposed on the upper side of the two spring rods 523. A push rod 526 is fixedly disposed on the lower side of the driven plate 525.

[0055] When the U-shaped lifting plate 443 moves the clamping table 453 downward to clamp the rim 2 to be processed, the pressure plate 444 moves downward synchronously and presses down the driven plate 525. The driven plate 525 then drives the upper scraper 524 downward through the spring rod 523 until the lower end face of the top rod 526 is stably attached to the upper surface of the limiting plate 522. At this time, the upper scraper 524 can no longer move, and the clamping table 453 cooperates with the support table 431 to stably clamp the rim 2. At the same time, the lower scraper 521 and the upper scraper 524 are stably aligned with the inner and outer surfaces of the upper end of the rim 2, respectively.

[0056] When the rim 2 is welded and protruding flash is generated on both the inner and outer sides of the upper end, the connecting plate 513 is moved backward by the cylinder 512. The connecting plate 513 then moves the upper scraper 524 and the lower scraper 521 synchronously, thereby scraping away the protruding flash at the weld of the rim 2. Then, the two connecting plates 425 are moved in opposite directions to move the corresponding support platform 431 and clamping platform 453 synchronously to reset. Finally, the clamping platform 453 is moved upward to reset by the U-shaped lifting plate 443. To release the clamping of the rim 2, the second spring rod 523 drives the upper scraper 524 to move upward synchronously with the pressure plate 444 until it no longer contacts the rim 2. The first spring rod 432 also drives the forming rim 2 to move upward and reset to the initial position through the guide wheel 434, so that the forming rim 2 does not contact the upper scraper 524, the lower scraper 521 and the support platform 431. At this time, the forming rim 2 can be supported and limited by the U-shaped support plate 333 and the material can be taken back. The guide wheel 434 can reduce the frictional resistance encountered by the forming rim 2 during the material taking process.

[0057] The above operation method can complete the entire process of flash welding and burr removal of the rim 2 with only one clamping. This not only eliminates the time loss of transferring and repeatedly clamping the workpiece between different devices, making the production process more compact and continuous, but also effectively avoids the scratch damage to the automated conveying system and adjacent workpieces caused by the rim 2 with high-temperature burrs during the conveying process. Thus, while improving production efficiency, it also ensures equipment safety and product quality.

[0058] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0059] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0060] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0061] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An automatic welding apparatus for automobile parts, comprising a processing table for wheel rim welding processing, characterized by: The welding mechanism is arranged on the upper side of the processing table, and a scraping mechanism is arranged on the welding mechanism; The protection mechanism comprises a lifting adjusting part arranged on the upper side of the processing table, an adjusting protection part for shielding high-temperature debris arranged on the lifting adjusting part, and a limiting unloading part for lifting and unloading the formed wheel rim arranged on the adjusting protection part; The welding mechanism comprises a fixing table fixedly arranged on the upper side of the processing table, a transverse adjusting part for left-right movement arranged on the upper side of the fixing table, an adjusting supporting part for supporting and guiding the wheel rim arranged on the rear side of the transverse adjusting part, a lifting driving part for lifting adjustment arranged on the upper side of the transverse adjusting part, and a clamping positioning part for stably clamping the wheel rim arranged on the lifting driving part; The scraping mechanism comprises a telescopic driving part arranged on the front side of the lifting driving part and used for front-rear adjustment, and a positioning scraping part for scraping the raised flash at the weld of the wheel rim arranged on the telescopic driving part. The wheel rim is sequentially welded and flash scraped by the welding mechanism and the scraping mechanism, the debris is shielded by the protection mechanism, the protection is removed after the wheel rim is formed, the wheel rim is unloaded by the welding mechanism, and a new wheel rim is clamped.

2. The automatic welding apparatus for automobile parts according to claim 1, characterized by: The lifting adjusting part comprises two groups of guide rails fixedly arranged on the upper side of the processing table in left-right symmetry, each group is composed of front-rear symmetrical guide rails, electric sliding blocks for up-down movement are slidingly arranged on the guide rails, and a fixed plate is fixedly arranged on the side away from the corresponding guide rail of the front-rear symmetrical electric sliding blocks.

3. An apparatus for automatic welding of automobile parts as claimed in claim 2 wherein: The adjusting protection part comprises a U-shaped cover fixedly arranged between the left-right symmetrical fixed plates, a top protection plate is fixedly arranged on the upper side of the U-shaped cover, a supporting plate is fixedly arranged on the front side in the U-shaped cover, and a reinforcing plate is fixedly arranged on the lower side of the supporting plate.

4. The apparatus according to claim 3, wherein: The limiting unloading part comprises a cylinder one fixedly arranged on the rear side of the U-shaped cover, an installation plate for front-rear movement and located in the U-shaped cover is fixedly arranged at the telescopic end of the cylinder one, guide rods one slidingly connected with the U-shaped cover are fixedly arranged on the rear side of the installation plate in left-right symmetry, and a U-shaped supporting plate located on the upper side of the supporting plate is fixedly arranged on the front side of the installation plate.

5. The automatic welding apparatus for automobile parts according to claim 1, characterized by: The transverse adjusting part comprises a U-shaped table fixedly arranged on the upper side of the fixing table through a pad, a limiting groove extending leftward and rightward is formed in the inner side of the U-shaped table, a cylinder two is fixedly arranged on the U-shaped table in left-right symmetry, a sliding block slidingly connected with the limiting groove is fixedly arranged at the telescopic end of the cylinder two and moves leftward and rightward, and a linkage plate one is fixedly arranged on the rear side of the sliding block.

6. An apparatus for automatic welding of automobile parts as claimed in claim 5 wherein: The adjusting supporting part comprises a supporting table fixedly arranged on the rear side of the linkage plate one, a plurality of spring rods one for up-down movement are uniformly and elastically slidingly arranged on the opposite sides of the two supporting tables through a support one, an L-shaped adjusting frame is fixedly arranged at the upper ends of the plurality of spring rods one, and a plurality of guide wheels are uniformly and rotationally arranged on the front and rear sides of the L-shaped adjusting frame near the corresponding supporting table on the upper end of the L-shaped adjusting frame.

7. An apparatus for automatic welding of automobile parts as claimed in claim 5 wherein: The lifting driving part comprises an L-shaped mounting table fixedly arranged on the upper side of the U-shaped table, a through slot is arranged in the vertical section of the L-shaped mounting table, a cylinder three is fixedly arranged on the upper side of the horizontal section of the L-shaped mounting table, a telescopic end of the cylinder three is fixedly arranged with a U-shaped lifting plate moving up and down, a plurality of guide rods two are fixedly arranged on the upper side of the U-shaped lifting plate and are in sliding connection with the horizontal section of the L-shaped mounting table, and a pressing plate is fixedly arranged on the rear side of the U-shaped lifting plate and penetrates through the through slot.

8. An apparatus for automatic welding of automobile parts as claimed in claim 7 wherein: The clamping positioning part comprises two slide rods fixedly arranged on the inner side of the U-shaped lifting plate and symmetrically arranged front and back, two slide seats moving left and right are arranged on the two slide rods, a clamping table is fixedly arranged on the lower side of the slide seat, a linkage plate two is fixedly arranged on the front side of the clamping table, linkage rods sliding up and down and penetrating through the linkage plate one are fixedly arranged on the lower side of the linkage plate two and symmetrically arranged left and right.

9. The apparatus of claim 7, wherein: The telescopic driving part comprises a U-shaped frame fixedly arranged on the front side of the L-shaped mounting table, a cylinder four is fixedly arranged on the front side of the U-shaped frame, a connecting plate moving front and back is fixedly arranged on the telescopic end of the cylinder four, and guide rods three in sliding connection with the U-shaped frame are fixedly arranged on the front side of the connecting plate and symmetrically arranged up and down.

10. The apparatus of claim 9, wherein: The alignment and scraping part comprises a lower scraping plate fixedly arranged on the rear side of the lower end of the connecting plate, a limiting plate is fixedly arranged on the rear side of the upper end of the connecting plate, spring rods two moving up and down are elastically and symmetrically arranged on the limiting plate, an upper scraping plate is fixedly arranged on the lower side of the two spring rods two, a driven plate in pressure cooperation with the pressing plate is fixedly arranged on the upper side of the two spring rods two, and a jacking rod is fixedly arranged on the lower side of the driven plate.

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