A continuous automatic welding equipment for air springs

Abstract

The present application relates to air spring processing technical field, specifically to a kind of air spring continuous automatic welding equipment, including rack and welding manipulator body installed on rack, the rack is provided with the loading module used in cooperation with welding manipulator body, the loading module includes the clamping equipment for fixing air spring;The clamping equipment includes the bottom plate fixed on the upper surface of the rack.This air spring continuous automatic welding equipment adopts the design of two gantry cooperation lower baffle, when workpiece is placed into loading platform, one of the gantry is in the state of extension under the action of guide cylinder and first guide wheel, lower baffle is just located below workpiece and supports workpiece, prevent it from falling;In the process of turning over, the movement of two gantries is controlled by second guide groove on guide cylinder, first guide wheel and connecting arm, always have lower baffle stable support in the process of workpiece turning over, ensure the position stability of workpiece in each process, guarantee welding and cleaning quality.

Description

Technical Field

[0001] This application relates to the field of air spring processing technology, and in particular to a continuous automatic welding equipment for air springs. Background Technology

[0002] Air springs are spring assemblies that utilize air in a sealed elastic space for compressibility. Their structure is relatively simple, mainly consisting of a sealed air elastic component and a cover plate component. Some air springs have metal cover plates at both ends, requiring welding during installation. Therefore, a welding device is needed. A search revealed a patent document with publication number CN114310013A, which discloses a precise positioning air spring piston welding device, including a worktable, a fixed frame, and a protective baffle. A movable platform is mounted on the top of the worktable, and a processing table is mounted on the top of the movable platform. This precise positioning air spring piston welding device is equipped with a guide plate, a return spring, and a retainer. In the initial state, the guide plate is kept closed on the top of the processing table by the same set of return springs, and the sliding range of the guide plate is limited by an inner groove.

[0003] Regarding the aforementioned related technologies, the inventors have discovered at least the following problems: the application suffers from low flexibility, as only one side can be welded at a time. To weld the other side, the operator must manually remove the workpiece, flip it over, re-clamp and position it, and then restart the equipment for welding. This method is not only inefficient, but also prone to deviations in secondary positioning, making it impossible to guarantee the accuracy of the initial positioning, which in turn can easily affect the welding quality.

[0004] In view of this, a continuous automatic welding device for air springs is proposed to solve the problems mentioned above. Summary of the Invention

[0005] To address the shortcomings of existing technologies and improve welding results, this application provides a continuous automatic welding device for air springs that provides stable workpiece support and automatic cleaning. This device offers advantages such as high welding quality and processing efficiency, and solves the problems mentioned in the background technology.

[0006] This application provides a continuous automatic welding device for air springs, which adopts the following technical solution:

[0007] A continuous automatic welding device for air springs includes a frame and a welding robot body mounted on the frame. The frame is provided with a loading module for use with the welding robot body. The loading module includes clamping devices for fixing the air springs.

[0008] The clamping device includes a base plate fixed to the upper surface of the frame. A drive spindle and a guide cylinder are provided on the base plate. A rotating seat is installed on one side of the drive spindle, a connecting shaft is installed on one side of the rotating seat, and a loading platform for loading air springs is installed at the other end of the connecting shaft. Two material blocking components are provided on the rotating seat and distributed on the upper and lower sides of the loading platform.

[0009] The material blocking assembly includes a gantry frame disposed outside the loading platform. Two symmetrically distributed lower baffles are installed on one side of the gantry frame. A connecting arm that penetrates the interior of the rotating seat is fixed on the outer wall of the gantry frame. A first guide wheel that is tactilely connected to the guide cylinder is installed at the end of the connecting arm. A second guide groove is formed inside the guide cylinder, surrounding the outer surface and tactilely engaging with the first guide wheel. There are two gantry frames, and the two gantry frames alternately extend and retract through the tactile engagement of the first guide wheel and the second guide groove.

[0010] The lower baffle is equipped with a cleaning device for cleaning the workpiece, and the lower baffle is also provided with a lubrication structure for use with the cleaning device and for lubricating the gantry.

[0011] Optionally, the clamping device further includes three support seats fixed to the upper surface of the base plate, the rotating seat bearing is installed inside the front support seat, the guide cylinder is fixed to the outer wall of the middle support seat, and the right support seat is provided with a drive structure connected to the drive spindle.

[0012] Optionally: The loading platform has a loading slot inside, and a front baffle is installed on the front of the loading platform to cover the loading slot. The loading platform has guide grooves on both the top and bottom to guide the two gantry frames. The outer surface of the loading platform is also equipped with a guide plate for use with the cleaning device, and the guide plate has a first guide groove inside.

[0013] Optionally: The outer surface of the rotating seat is fixed with two guide rails, and the two connecting arms are slidably connected to the two guide rails respectively. The second guide groove is in the shape of an inclined ellipse, and the pressure angle at its two ends is adapted to the first guide wheel.

[0014] Optionally, the cleaning device includes a mounting plate disposed above the two lower baffles. A cleaning brush is bolted to the lower surface of the mounting plate. A linkage assembly connected to the first guide groove and the lubrication structure is disposed on the side wall of the mounting plate. The first guide groove consists of two straight grooves and an inclined groove. The two straight grooves are arranged at different heights, and the two ends of the inclined groove are respectively connected to the two straight grooves.

[0015] Optionally: A guide rod is fixed to the upper surface of each of the two lower baffles, penetrating the interior of the mounting plate, and a return spring is installed between the mounting plate and the two lower baffles, surrounding the outside of the guide rod.

[0016] Optionally, the linkage component includes a rotating shaft fixed to the side wall of the mounting plate. The end bearing of the rotating shaft is equipped with a second guide wheel that is rolled and connected to the inner side of the first guide groove. The cleaning brush plate achieves automatic lifting and lowering adjustment through the rolling cooperation between the second guide wheel and the first guide groove. The upper surface of the lower baffle is also provided with an infusion component for automatic lifting and lowering of the cleaning brush plate. The infusion component is connected to the lubrication structure.

[0017] Optionally, the linkage assembly further includes a worm gear fixed to the outer surface of the rotating shaft, wherein the worm gear engages with a worm wheel externally;

[0018] The lubrication structure includes a plug cylinder and a liquid storage cylinder fixed to the side wall of the lower baffle. A piston extending outward is slidably disposed inside the plug cylinder. An abutment block is installed on one side of the piston. An agitator shaft extending outward and fixed to the worm gear is installed in the internal bearing of the liquid storage cylinder. A buffer spring is installed between the abutment block and the plug cylinder.

[0019] Optionally: Two check valves are installed on the outer wall of the plug cylinder, and each of the two check valves is equipped with a connecting pipe at its end. The two connecting pipes are respectively connected to the infusion assembly and the storage cylinder.

[0020] The upper surface of the lower baffle is fixed with an abutment seat that presses against the abutment block.

[0021] Optionally: A connecting block connected to the infusion assembly is installed on the side wall of the cleaning brush plate. The infusion assembly includes a sleeve fixed to the upper surface of the lower baffle plate. An oil storage pad is embedded inside the sleeve. A squeezing block extending outward and connected to the bottom side of the connecting block is slidably disposed inside the sleeve. Oil drain holes are opened inside both the sleeve and the lower baffle plate.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. This invention employs a design with two gantry frames and a lower baffle. When the workpiece is placed on the loading table, one of the gantry frames is extended under the action of the guide cylinder and the first guide wheel, and the lower baffle is positioned directly below the workpiece to support it and prevent it from falling. During the flipping process, the movement of the two gantry frames is controlled by the second guide groove on the guide cylinder, the first guide wheel, and the connecting arm, ensuring that the lower baffle provides stable support for the workpiece throughout the flipping process. This ensures the stability of the workpiece's position in each process and guarantees the quality of welding and cleaning.

[0024] 2. This invention, by installing a cleaning device on an alternately used lower baffle, allows the cleaning brush to extend and retract with the lower baffle. When the second guide wheel on the cleaning brush rolls within a fixed first guide groove, the first guide groove, with its varying heights of straight and oblique grooves, allows the cleaning brush to move up and down during the baffle's extension and retraction. This compresses the return spring, ensuring the cleaning brush is in tight contact with the workpiece surface. This not only effectively removes welding slag and spatter from the previous process, ensuring a clean workpiece surface, but also enables pre-treatment of the workpiece, improving welding quality and subsequent processing quality, while significantly shortening the total processing time for a single workpiece.

[0025] 3. This invention utilizes the coordination of alternating support and cleaning of workpieces to drive the lubrication structure, enabling the grease to be continuously and evenly applied to the surface of the moving parts. This eliminates the need for frequent manual addition of grease or lubrication operations, reducing not only the labor intensity of workers but also minimizing problems such as uneven or missed lubrication caused by improper manual operation, thereby improving equipment maintenance efficiency.

[0026] 4. In this invention, the oil reservoir pad can uniformly store grease and release it evenly when compressed. Compared with the traditional oil cup or oil tank storage method, the oil reservoir pad can avoid the phenomenon of local accumulation or drying of grease during storage, ensuring the quality and supply stability of grease, improving the lubrication effect. In addition, the oil reservoir pad also has a certain ability to adsorb impurities. During the storage and release of grease, it can adsorb tiny impurities and particles in the grease, preventing these impurities from entering the equipment and wearing down equipment parts. Attached Figure Description

[0027] Figure 1 This is a three-dimensional view of the overall structure of this application;

[0028] Figure 2 This is a schematic diagram of the loading module structure of this application;

[0029] Figure 3 This is a structural side view of the clamping device of this application;

[0030] Figure 4 This is a schematic diagram of the loading platform of this application;

[0031] Figure 5 This is a schematic diagram of the structure of the first guide groove in this application;

[0032] Figure 6 This is a schematic diagram of the overall structure of the cleaning device of this application;

[0033] Figure 7 This is a partial structural schematic diagram of the cleaning device of this application;

[0034] Figure 8 This is a schematic diagram of the lubrication structure of this application;

[0035] Figure 9 This is a cross-sectional view of the infusion assembly of this application.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Frame; 2. Welding robot body; 3. Loading module; 4. Clamping equipment; 41. Base plate; 42. Support base; 43. Drive spindle; 44. Rotating seat; 45. Connecting shaft; 46. Loading platform; 461. Loading slot; 462. Front baffle; 463. Guide chute; 464. Guide plate; 465. First guide groove; 47. Drive structure; 48. Connecting arm; 49. Guide cylinder; 410. First guide wheel; 411. Second guide groove; 412. Guide rail; 413. Gantry frame; 414. Lower baffle; 5. Cleaning device; 51. Mounting plate; 52. Cleaning brush; 53. Guide rod; 54. Return spring; 55. Linkage assembly; 551. Rotating shaft; 552. Second guide wheel; 553. Worm gear; 554. Worm wheel; 56. Connecting block; 6. Lubrication structure; 61. Plug; 62. Liquid storage tank; 63. Piston; 64. Abutment block; 65. Check valve; 66. Connecting pipe; 67. Buffer spring; 68. Stirring shaft; 7. Abutment seat; 8. Infusion assembly; 81. Sleeve; 82. Oil storage pad; 83. Squeezing block; 84. Oil drain hole. Detailed Implementation

[0038] The following is in conjunction with the appendix Figures 1-9 This application will be described in further detail.

[0039] Example 1, such as Figures 1-5 As shown, this embodiment of a continuous automatic welding device for air springs includes a frame 1 and a welding robot body 2 mounted on the frame 1. The frame 1 is provided with a loading module 3 for use with the welding robot body 2. The loading module 3 includes a clamping device 4 for fixing the air springs. Specifically, the clamping device 4 includes a base plate 41 fixed to the upper surface of the frame 1. The base plate 41 is provided with a drive spindle 43 and a guide cylinder 49. A rotating seat 44 is mounted on one side of the drive spindle 43, and a connecting shaft 45 is mounted on one side of the rotating seat 44. The other end of the connecting shaft 45 is provided with a loading platform 46 for loading air springs. Two material blocking components are provided on the rotating seat 44 and distributed on the upper and lower sides of the loading platform 46. The loading platform 46 has a loading slot 461 inside, and a front baffle 462 is installed on the front of the loading platform 46 to block the loading slot 461. Guide grooves 463 for guiding two gantry frames 413 are provided on both the upper and lower sides of the loading platform 46.

[0040] The material blocking assembly includes a gantry 413 disposed outside the loading platform 46. Two symmetrically distributed lower baffles 414 are installed on one side of the gantry 413. A connecting arm 48 penetrating the interior of the rotating seat 44 is fixed on the outer wall of the gantry 413. A first guide wheel 410 is installed at the end of the connecting arm 48 and is tactilely connected to a guide cylinder 49. A second guide groove 411 is provided inside the guide cylinder 49, surrounding the outer surface and tactilely engaging with the first guide wheel 410. There are two gantry 413s, and the two gantry 413s alternately extend and retract through the tactile engagement of the first guide wheel 410 and the second guide groove 411. In use, the tactile engagement of the first guide wheel 410 and the second guide groove 411 realizes the control of the extension and retraction of the gantry 413. The tactile engagement reduces frictional resistance, making the movement of the gantry 413 smoother and improving the reliability of the movement. Furthermore, the shape of the second guide groove 411 allows for flexible control of the movement trajectory and speed of the gantry 413 to meet the needs of different working conditions.

[0041] To support the drive spindle 43, the clamping device 4 also includes three support seats 42 fixed to the upper surface of the base plate 41. A rotating seat 44 is bearing-mounted inside the front support seat 42. A guide cylinder 49 is fixed to the outer wall of the middle support seat 42, and a drive structure 47 connected to the drive spindle 43 is provided on the right support seat 42. The drive spindle 43 passes through the guide cylinder 49 and the middle support seat 42. Two guide rails 412 are fixed to the outer surface of the rotating seat 44. Two connecting arms 48 are slidably connected to the two guide rails 412 respectively. The guide rails 412 provide precise guidance for the movement of the connecting arms 48, ensuring that the gantry 413 can move smoothly along a predetermined trajectory during extension and retraction, avoiding deviation or swaying during the movement of the gantry 413, and further improving the structural stability of the equipment.

[0042] It should be noted that the second guide groove 411 has an inclined elliptical shape, and the pressure angle at its two ends is adapted to the first guide wheel 410. The second guide groove 411 has a linear sliding distance on both its upper and lower sides. This application employs a design with two gantry frames 413 and a lower baffle 414. When the workpiece is placed on the loading table 46, one of the gantry frames 413 is extended under the action of the guide cylinder 49 and the first guide wheel 410. The lower baffle 414 is positioned directly below the workpiece to support it and prevent it from falling. During the flipping process, the movement of the two gantry frames 413 is controlled by the second guide groove 411 on the guide cylinder 49, the first guide wheel 410, and the connecting arm 48, ensuring that the lower baffle 414 stably supports the workpiece throughout the flipping process, guaranteeing the stability of the workpiece's position in each process and ensuring welding and cleaning quality.

[0043] In addition, during the flipping process, welding debris can be discharged, and the welding position can be inspected from multiple angles with the detection equipment, further improving the applicability of clamping equipment 4 and the processing quality of air springs.

[0044] Example 2, as follows Figure 2 , Figures 6-8 As shown, in order to clean the workpiece, a cleaning device 5 for cleaning the workpiece is installed on the lower baffle 414, and a lubrication structure 6 for lubricating the gantry 413 is also provided on the lower baffle 414 in conjunction with the cleaning device 5; wherein, a guide plate 464 for use with the cleaning device 5 is also installed on the outer surface of the loading platform 46, and a first guide groove 465 is provided in the guide plate 464.

[0045] The cleaning device 5 includes a mounting plate 51 positioned above two lower baffles 414. A cleaning brush 52 is bolted to the lower surface of the mounting plate 51. Guide rods 53, penetrating the interior of the mounting plate 51, are fixed to the upper surfaces of both lower baffles 414. A return spring 54, surrounding the guide rods 53, is installed between the mounting plate 51 and the two lower baffles 414. The return spring 54, in conjunction with the guidance of the first guide groove 465, allows the cleaning brush 52 to automatically rise and fall according to the displacement of the gantry 413. The linkage component 55 includes a rotating shaft 551 fixed to the side wall of the mounting plate 51. A second guide wheel 552, which is rollably connected to the inner side of the first guide groove 465, is mounted on the end bearing of the rotating shaft 551. The cleaning brush 52 achieves automatic rising and falling adjustment through the rolling contact between the second guide wheel 552 and the first guide groove 465. Specifically, the cleaning brush 52 achieves automatic lifting and lowering adjustment through the rolling cooperation of the second guide wheel 552 and the first guide groove 465. The first guide groove 465 consists of two straight grooves of different heights and an inclined groove connecting them. This allows the cleaning brush 52 to automatically adjust its distance from the workpiece according to the shape change of the first guide groove 465 as it moves with the lower baffle 414. This means that in areas requiring focused cleaning, the cleaning brush 52 can descend closer to increase cleaning force, while in other areas it can be raised appropriately to reduce unnecessary wear. This achieves comprehensive and targeted efficient cleaning of the workpiece, improving cleaning quality. It is worth mentioning that the first guide groove 465 not only guides the second guide wheel 552 to achieve automatic lifting and lowering adjustment of the cleaning brush 52, but also cleverly controls the movement trajectory and rhythm of the cleaning brush 52 through its special shape design.

[0046] It should be noted that the linkage assembly 55 also includes a worm 553 fixed to the outer surface of the rotating shaft 551, and an external meshing worm wheel 554 of the worm 553. The side wall of the mounting plate 51 is provided with a linkage assembly 55 that is connected to the first guide groove 465 and the lubrication structure 6. The first guide groove 465 is composed of two straight grooves and an inclined groove. The two straight grooves are set at different heights, and the two ends of the inclined groove are respectively connected to the two straight grooves.

[0047] Example 3, as follows Figure 2 , Figure 6 and Figure 8 As shown, the lubrication structure 6 includes a plug cylinder 61 and a liquid storage cylinder 62 fixed to the side wall of the lower baffle 414. A piston 63 extending outward is slidably disposed inside the plug cylinder 61. An abutment block 64 is installed on one side of the piston 63. An stirring shaft 68 extending outward and fixed to the worm gear 554 is installed in the bearing inside the liquid storage cylinder 62. A buffer spring 67 is installed between the abutment block 64 and the plug cylinder 61. The buffer spring 67 can not only realize the reset of the piston 63, but also realize the buffering effect, effectively improving the service life of the lubrication structure 6. The outer wall of the plug cylinder 61 is equipped with two check valves 65, and each check valve 65 has a connecting pipe 66 at its end. The two connecting pipes 66 are connected to the infusion assembly 8 and the storage cylinder 62, respectively. When the second guide wheel 552 rolls, it drives the worm gear 553 and the worm wheel 554, which in turn drives the stirring shaft 68 to stir the grease in the storage cylinder 62. This can effectively prevent the grease from settling or separating during storage, ensuring the uniformity and fluidity of the grease, thereby providing a stable and high-quality lubrication effect for the equipment.

[0048] To drive the piston 63, an abutment seat 7 for the pressing abutment block 64 is fixed on the upper surface of the lower baffle 414. The abutment seat 7 consists of a fixed block and an abutment shaft, with the abutment shaft threadedly connected to the fixed block. It should be noted that this lubrication structure 6 is linked with the worm gear 554 in the cleaning device 5. The rotation of the worm gear 554 drives the stirring shaft 68 to stir the grease in the storage tank 62. At the same time, the piston 63 is driven to move through the cooperation of the abutment seat 7 and the abutment block 64, realizing the efficient coordination of grease stirring, conveying and spreading operations, and improving the overall lubrication efficiency.

[0049] In addition, the abutment shaft is threadedly connected to the fixed block, allowing for easy adjustment of its height. By rotating the abutment shaft, its contact position and degree of compression with the abutment block 64 can be changed, thereby precisely controlling the stroke of the piston 63 and the amount of grease pumped according to actual needs, facilitating equipment debugging and maintenance.

[0050] Example 4, as follows Figure 6 and Figure 8As shown, the upper surface of the lower baffle 414 is also provided with an infusion assembly 8 for automatic lifting and lowering in conjunction with the cleaning brush 52. The infusion assembly 8 is connected to the lubrication structure 6. The infusion assembly 8 includes a sleeve 81 fixed to the upper surface of the lower baffle 414. An oil reservoir 82 is embedded inside the sleeve 81. A squeezing block 83 is slidably disposed inside the sleeve 81, extending outward and connected to the bottom side of the connecting block 56. Oil drain holes 84 are provided inside both the sleeve 81 and the lower baffle 414. Specifically, one of the connecting pipes 66 communicates with the oil reservoir 82. A connecting block 56 connected to the infusion assembly 8 is installed on the side wall of the cleaning brush 52, so that the infusion assembly 8 and the cleaning brush 52 can be automatically raised and lowered in close coordination. When the cleaning brush 52 descends to perform cleaning work, the connecting block 56 descends accordingly, pushing the squeezing block 83 to slide in the sleeve 81, squeezing the oil storage pad 82 to release grease, thereby ensuring that the output of grease is synchronized with the cleaning action of the cleaning brush 52, providing lubrication to related components while cleaning, ensuring that the equipment maintains a good operating condition during the cleaning process, and improving the efficiency of cleaning and lubrication.

[0051] It should be noted that the oil reservoir 82 employs special materials and structural design, such as porous polymer materials and fiber materials, to uniformly store grease and release it evenly when compressed. Compared to traditional oil cups or oil tanks, the oil reservoir 82 prevents localized accumulation or drying of grease during storage, ensuring the quality and stability of grease supply, improving lubrication performance, and also possesses a certain ability to adsorb impurities. During the storage and release of grease, it can adsorb tiny impurities and particles in the grease, preventing these impurities from entering the equipment and causing wear on equipment parts.

[0052] Combined with appendix Figures 1-9 The working principle of the above embodiments is as follows:

[0053] The operator or loading robot places the air spring workpiece into the loading slot 461 of the loading table 46. At this time, one of the gantry 413 is in the extended state under the action of the guide cylinder 49 and the first guide wheel 410. The lower baffle 414 on it is located under the workpiece, supporting the workpiece so that it will not fall. The other gantry 413 is in the retracted state. During welding, the welding robot body 2 starts to work and welds the front of the workpiece. After welding is completed, the drive structure 47 starts and drives the drive spindle 43 to rotate, thereby causing the entire rotating seat 44, connecting shaft 45 and loading table 46 to start to flip.

[0054] During the flipping process, the second guide groove 411 on the fixed guide cylinder 49 controls the movement of the two gantry frames 413 through the first guide wheel 410 and the connecting arm 48. When the loading platform 46 rotates to about 90°, and the side of the workpiece is facing down, the gantry frame 413 that was originally extended begins to retract, and its lower baffle 414 gradually moves away from the workpiece. At the same time, the other gantry frame 413 begins to extend, and its lower baffle 414 moves to the new lower position of the workpiece. When the loading platform 46 rotates 180°, the states of the two gantry frames 413 are completely interchanged. The lower baffle 414 that originally supported the workpiece is completely retracted, while the lower baffle 414 that was originally retracted is completely extended, and it steadily supports the workpiece at the new bottom. At this point, the workpiece has been flipped.

[0055] During the extension and retraction of the lower baffle 414, the cleaning device 5 fixed on it also moves accordingly. The second guide wheel 552 on the cleaning brush 52 rolls within the fixed first guide groove 465. Since the first guide groove 465 is composed of straight grooves and inclined grooves of varying heights, when the second guide wheel 552 moves from the lower straight groove through the inclined groove to the higher straight groove, it forces the entire cleaning brush 52 to move downward, compressing the return spring 54 and making the cleaning brush tightly contact the workpiece surface. When the lower baffle 414 extends and retracts, the cleaning brush 52 brushes the workpiece surface, removing the welding slag and spatter generated in the previous process. By using the two cleaning brushes 52 alternately, the effects of pretreatment and timely treatment can be achieved, effectively improving processing efficiency.

[0056] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A continuous automatic welding device for air spring, comprising a frame (1) and a welding robot body (2) mounted on the frame (1), characterized in that: The rack (1) is provided with a loading module (3) matched with the welding robot body (2), the loading module (3) comprises a clamping device (4) for fixing the air spring; The clamping device (4) comprises a bottom plate (41) fixed on the upper surface of the rack (1), the bottom plate (41) is provided with a driving main shaft (43) and a guide cylinder (49), one side of the driving main shaft (43) is provided with a rotating seat (44), one side of the rotating seat (44) is provided with a connecting shaft (45), and the other end of the connecting shaft (45) is provided with a loading platform (46) for loading the air spring, the rotating seat (44) is provided with two blocking assemblies distributed on the upper and lower sides of the loading platform (46); The blocking assembly comprises a portal frame (413) arranged outside the loading platform (46), one side of the portal frame (413) is provided with two lower baffles (414) which are symmetrically distributed, the outer wall of the portal frame (413) is fixed with a connecting arm (48) penetrating the inside of the rotating seat (44), the end of the connecting arm (48) is provided with a first guide wheel (410) in rolling connection with the guide cylinder (49), the inside of the guide cylinder (49) is provided with a second guide groove (411) arranged around the outer surface and in rolling connection with the first guide wheel (410), the number of the portal frame (413) is two, and the two portal frames (413) are alternately telescopic through the rolling connection of the first guide wheel (410) and the second guide groove (411); The lower baffle (414) is provided with a cleaning device (5) for cleaning the workpiece, and the lower baffle (414) is also provided with a lubricating structure (6) matched with the cleaning device (5) and used for lubricating the portal frame (413).

2. The continuous automatic spring welding apparatus according to claim 1, wherein: The clamping device (4) further comprises three support seats (42) fixed on the upper surface of the bottom plate (41), the rotating seat (44) is bearing-mounted in the inside of the front support seat (42), the guide cylinder (49) is fixed on the outer wall of the middle support seat (42), and the right support seat (42) is provided with a driving structure (47) connected with the driving main shaft (43).

3. The continuous automatic spring welding apparatus according to claim 1, wherein: The inside of the loading platform (46) is provided with a loading notch (461), and the front surface of the loading platform (46) is provided with a front baffle (462) shielding the loading notch (461), the upper and lower sides of the loading platform (46) are provided with guide sliding grooves (463) guiding the two portal frames (413), and the outer surface of the loading platform (46) is further provided with a guide plate (464) matched with the cleaning device (5), and the guide plate (464) is provided with a first guide groove (465).

4. The continuous automatic spring welding apparatus according to claim 1, wherein: The outer surface of the rotating seat (44) is fixed with two guide rails (412), two connecting arms (48) are slidably connected with the two guide rails (412) respectively, the outer shape of the second guide groove (411) is an inclined oval, and the pressure angle of the two end connecting portions thereof is matched with the first guide wheel (410).

5. The continuous automatic spring welding apparatus according to claim 3, wherein: The cleaning device (5) comprises a mounting plate (51) arranged above the two lower baffles (414), a cleaning brush plate (52) is bolted to the lower surface of the mounting plate (51), a linkage assembly (55) connected with the first guide groove (465) and the lubricating structure (6) is arranged on the side wall of the mounting plate (51), and the first guide groove (465) is composed of two straight grooves and an inclined groove.

6. The continuous automatic spring welding apparatus according to claim 5, wherein: The upper surfaces of the two lower baffles (414) are fixed with guide rods (53) penetrating the inside of the mounting plate (51), and a return spring (54) surrounding the outside of the guide rod (53) is arranged between the mounting plate (51) and the two lower baffles (414).

7. The continuous automatic spring welding apparatus according to claim 5, wherein: The linkage assembly (55) comprises a rotating shaft (551) fixed on the side wall of the mounting plate (51), the end portion of the rotating shaft (551) is provided with a second guide wheel (552) rollingly connected with the inside of the first guide groove (465), the cleaning brush plate (52) is automatically adjusted in height by the rolling cooperation of the second guide wheel (552) and the first guide groove (465), and the upper surface of the lower baffle (414) is further provided with a transfusion assembly (8) matched with the automatic height adjustment of the cleaning brush plate (52), and the transfusion assembly (8) is connected with the lubricating structure (6).

8. The continuous automatic spring welding apparatus according to claim 7, wherein: The linkage assembly (55) further comprises a worm (553) fixed to the outer surface of the rotating shaft (551), and the outside of the worm (553) engages with a worm wheel (554); The lubricating structure (6) comprises a plug barrel (61) and a liquid storage barrel (62) fixed on the side wall of the lower baffle (414), a piston (63) extending to the outside of the plug barrel (61) is slidably arranged in the inside of the plug barrel (61), an abutting block (64) is arranged on one side of the piston (63), a stirring shaft (68) extending to the outside of the liquid storage barrel (62) and fixed with the worm wheel (554) is bearing-mounted in the inside of the liquid storage barrel (62), and a buffer spring (67) is arranged between the abutting block (64) and the plug barrel (61).

9. The continuous automatic spring welding apparatus according to claim 8, wherein: Two check valves (65) are arranged on the outer wall of the plug barrel (61), connecting pipes (66) are arranged on the end portions of the two check valves (65) respectively, and the two connecting pipes (66) are connected with the transfusion assembly (8) and the liquid storage barrel (62) respectively. The upper surface of the loading table (46) is fixed with an abutting seat (7) extruding the abutting block (64).

10. The continuous automatic spring welding apparatus according to claim 7, wherein: The side wall of the cleaning brush plate (52) is provided with a connecting block (56) connected with the infusion assembly (8), the infusion assembly (8) comprises a sleeve (81) fixed to the upper surface of the lower baffle (414), the inside of the sleeve (81) is embedded with an oil storage pad (82), the inside of the sleeve (81) is slidably provided with an extrusion block (83) extending to the outside of the sleeve (81) and connected with the bottom side of the connecting block (56), and the inside of the sleeve (81) and the inside of the lower baffle (414) are both provided with oil discharge holes (84).

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