Efficient automatic welding device based on protective door machining

Abstract

The invention discloses an efficient automatic welding device based on protective door machining, and relates to the technical field of welding devices, the efficient automatic welding device comprises a welding rack, a storage rack arranged at the bottom of the welding rack, a welding platform arranged in the middle of the welding rack, and a sliding table arranged at the top of the welding rack in a sliding manner; the welding rack further comprises a mounting block fixedly connected to the bottom of the sliding table. The protective door leaf is placed on the upper surface of the welding platform; the welding gun is mounted on the inner side of the mounting block through a mounting frame; the balance disc is arranged on the welding gun in a sleeving manner; the adaptive sleeve is fixedly nested in the middle inner wall of the balance disc; and the lifting sleeve is fixedly connected to the outer wall of the welding gun. By means of the arc-shaped door leaf welding device, the problems that when the welding gun moves along the surface of the arc-shaped door leaf, the welding gun is limited by the fixed installation state of the welding gun, the welding gun and the arc surface of the door leaf are difficult to keep a stable attaching state all the time, then the relative gap between the welding gun and the surface of the door leaf fluctuates slightly, and the uniformity of welding seam forming is affected to a certain degree are solved.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, specifically to a high-efficiency automated welding device based on the processing of protective doors. Background Technology

[0002] Automated welding equipment is an automated production equipment that integrates precision mechanics, intelligent control and welding technology, specifically designed for the structural characteristics and welding process requirements of heavy protective doors such as air-raid shelter doors, explosion-proof doors and industrial protective doors. It can efficiently, accurately and stably complete the automated welding of protective door frames, panels, reinforcing ribs and accessories, solving the pain points of low efficiency, unstable quality and high labor intensity of manual welding.

[0003] For example, a multi-functional auxiliary welding device for arched protective doors, disclosed in CN116944785B, can resist welding deformation caused by welding stress during the welding process by clamping and fixing the auxiliary welding device, thereby ensuring the welding accuracy of the arched door leaf, improving production quality, and is also very flexible and convenient to use. The thickness clamping device and the width clamping device are adjustable, and it can also be used for welding arched door leaves of different sizes. However, existing automated welding devices for protective doors still have some shortcomings in welding arched door leaves.

[0004] Current welding torch actuators are typically designed for planar welding scenarios, with their posture and working distance adjustments often based on preset modes. When facing the curved surface of an arc-shaped door panel, it's difficult to achieve dynamic contact welding. In actual operation, as the welding torch moves along the arc-shaped door panel surface, its fixed configuration makes it difficult to maintain close contact with the curved surface. This results in a small gap between the torch and the panel surface. While this gap doesn't cause serious process defects, it does affect the uniformity of the weld formation. Furthermore, operators need to make periodic parameter adjustments during operation to adapt to the welding requirements of the arc-shaped area.

[0005] To address the aforementioned issues, there is an urgent need for innovative designs based on existing automated welding equipment. Summary of the Invention

[0006] This invention addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different approach. Specifically, the invention aims to provide a highly efficient automated welding device for protective door processing. This addresses the issue raised in the background where, due to its fixed installation, the welding torch cannot maintain a stable fit with the curved surface of the door, leading to slight fluctuations in the relative gap between the torch and the door surface, which in turn affects the uniformity of the weld formation.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency automated welding device based on protective door processing, comprising a welding frame, a shelf disposed at the bottom of the welding frame, a welding platform disposed at the center of the welding frame, and a slide disposed at the top of the welding frame, wherein the welding frame further comprises a mounting block fixedly connected to the bottom of the slide. The protective door is placed on the upper surface of the welding platform; The welding torch is mounted on the inside of the mounting block via a mounting bracket; A balance disc is fitted onto the welding torch; The fitting sleeve is fixedly nested in the center of the inner wall of the balance disc; The upgrade sleeve is fixedly connected to the outer wall of the welding torch; An adaptive fitting component is set at the bottom of the balance disc based on the adaptive negative pressure contact with the curved surface of the protective door leaf to maintain the welding distance between the welding torch and the protective door leaf; An ascending assembly with a rising sleeve and rising welding gun welding spacing, set at the bottom of the balance disc based on synchronous contact welding points; The adaptive fitting component includes a sleeve rod arranged at equal angles at the bottom of the balance disc, a telescopic rod slidably disposed within the sleeve rod, and an adaptive ball rotatably disposed at the end of the telescopic rod. A spring is disposed within the sleeve rod, one end of which is connected to the end of the telescopic rod located within the sleeve rod. A hinge plate is fixedly connected to the outer wall of the telescopic rod at its center. The step-up assembly includes a push rod fixedly connected to the bottom of the step-up sleeve, a drive ring fixedly connected to the bottom of the push rod, and a detection rod rotatably arranged at the bottom of the drive ring at equal angles. The detection rod has a movable groove, and a connecting rod is slidably arranged in the movable groove. The other end of the connecting rod is hinged to a hinge plate.

[0008] Preferably, the inner wall of the adapting sleeve is provided with a sealing sleeve, a cavity is provided between the sealing sleeve and the adapting sleeve, and a sliding groove is provided on the inner wall of the sealing sleeve.

[0009] Preferably, the outer wall of the stepped sleeve is fixedly connected with symmetrically distributed sliders, one end of which slides through the groove and the other end is placed in the cavity.

[0010] Preferably, the slider is provided with movable buckles on both outer walls of the cavity, and pawls are fixedly connected to both outer walls of the slider, with the ends of the pawls contacting the movable buckles.

[0011] Preferably, the movable buckle has an arc-shaped groove on the side away from the pawl, the groove opening is flared, the bottom of the groove is a smooth arc surface, the edge of the groove opening is provided with a rounded transition part, and the pawl is specifically an elastic structure to elastically adapt to the arc-shaped groove of the movable buckle.

[0012] Preferably, symmetrically distributed toothed plates are fixedly connected inside the cavity, and the toothed plates are respectively placed on both sides of the slider, with their internal teeth engaging with the movable buckle.

[0013] Preferably, the outer wall of the adaptive ball is covered with a wear-resistant rubber layer, and the surface of the wear-resistant rubber layer is provided with anti-slip texture.

[0014] Preferably, the inner wall of the sleeve rod is provided with a guide groove, and the outer wall of the telescopic rod is fixedly connected with a guide block that matches the guide groove, and the guide block is slidably disposed in the guide groove.

[0015] Preferably, the top of the drive ring is fixedly connected with a ring-shaped buffer spring, and the other end of the buffer spring abuts against the bottom of the balance disc.

[0016] Preferably, the connecting rod is fixedly connected to slide rods on both sides of the inner end of the movable groove.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. The adaptive ball in the adaptive bonding component at the bottom of the balance plate contacts the surface of the protective door leaf. Based on the different curvature of the curved surface of the protective door leaf, the adaptive ball will drive the telescopic rod to adaptively extend and retract along the inside of the sleeve rod (the spring inside the sleeve rod undergoes elastic deformation synchronously), thereby ensuring that the adaptive ball always maintains a bonded state with the curved surface of the protective door leaf, thus ensuring that the welding gun and the welding surface always maintain a preset horizontal distance. 2. After each layer of welding is completed, the welding torch moves via the slide to the side of the protective door leaf where welding has been completed (i.e., the horizontal weld point area on the side of the curved surface). At this time, the four detection rods in the step-up assembly simultaneously contact the surface of the first layer of weld points. Under the support force of the weld points, the detection rods simultaneously retract towards the balance plate. During the retraction process, the detection rods push the drive ring upward, and the drive ring drives the step-up sleeve to move upward through the drive rod, thereby driving the welding torch to rise one step simultaneously (the step-up spacing parameters of the welding torch need to be preset in advance according to the number of welding layers and passes), thus completing the precise adjustment of the welding spacing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the protective door welding device of the present invention.

[0019] Figure 2 This is a schematic diagram of the protective door welding device of the present invention from another angle.

[0020] Figure 3 This is a schematic diagram of the adaptive bonding welding gun of the present invention.

[0021] Figure 4 This is a schematic diagram of the adaptive bonding welding gun of the present invention from another angle.

[0022] Figure 5 This is a schematic diagram of the adaptive bonding state of the welding torch to the arc-shaped door leaf according to the present invention.

[0023] Figure 6 This is a schematic diagram of the adaptive bonding structure of the present invention.

[0024] Figure 7 This is a schematic diagram of the stage-up component of the present invention.

[0025] Figure 8 for Figure 7 An enlarged schematic diagram of the structure at point A.

[0026] Figure 9 This is a schematic diagram of the driving structure within the stage-up component of the present invention.

[0027] In the diagram: 1. Welding stand; 2. Shelf; 3. Welding platform; 4. Slide table; 5. Mounting block; 6. Protective door leaf; 7. Welding torch; 8. Balance disc; 9. Elevating sleeve; 10. Adapting sleeve; 11. Sleeve rod; 12. Telescopic rod; 13. Adapting ball; 14. Detection rod; 15. Hinge plate; 16. Movable groove; 17. Connecting rod; 18. Drive ring; 19. Push rod; 20. Sealing sleeve; 21. Slide rod; 22. Toothed plate; 23. Slider; 24. Pawl; 25. Movable buckle. Detailed Implementation

[0028] 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.

[0029] Please see Figures 1 to 8 The present invention provides a technical solution: a high-efficiency automated welding device based on protective door processing, including a welding frame 1, a shelf 2 set at the bottom of the welding frame 1, a welding platform 3 set at the center of the welding frame 1, and a slide 4 slidably set at the top of the welding frame 1. The welding frame 1 also includes a mounting block 5 fixedly connected to the bottom of the slide 4. The protective door 6 is placed on the upper surface of the welding platform 3; The welding torch 7 is mounted on the inside of the mounting block 5 via a mounting bracket; Balance disc 8 is fitted onto welding torch 7; Fitting sleeve 10 is fixedly nested in the center of the inner wall of the balance disc 8; The upgrading sleeve 9 is fixedly connected to the outer wall of the welding torch 7; An adaptive fitting component is set at the bottom of the balance plate 8 based on the adaptive negative pressure contact with the arc-shaped surface of the protective door leaf 6 to maintain the welding distance between the welding torch 7 and the protective door leaf 6; An ascending assembly with a welding spacing of ascending sleeve 9 and ascending welding gun 7, set at the bottom of the balance plate 8 based on synchronous contact welding points; The adaptive fitting component includes a sleeve rod 11 arranged at equal angles at the bottom of the balance disc 8, a telescopic rod 12 slidably arranged in the sleeve rod 11, and an adaptive ball 13 rotatably arranged at the end of the telescopic rod 12. A spring is provided in the sleeve rod 11, one end of which is connected to the end of the telescopic rod 12 located in the sleeve rod 11. A hinge piece 15 is fixedly connected to the outer wall of the telescopic rod 12 at the center. The step-up assembly includes a push rod 19 fixedly connected to the bottom of the step-up sleeve 9, a drive ring 18 fixedly connected to the bottom of the push rod 19, and a detection rod 14 rotatably disposed at the bottom of the drive ring 18 at equal angles. The detection rod 14 has a movable groove 16, and a connecting rod 17 is slidably disposed in the movable groove 16. The other end of the connecting rod 17 is hinged to the hinge piece 15.

[0030] In this embodiment, the protective door leaf 6 to be welded is placed on the upper surface of the welding platform 3, and the welding torch 7 is moved to the position directly above the desired welding location via the slide table 4 at the top of the welding stand 1. Then, the welding torch 7 moves downward, so that the adaptive ball 13 in the adaptive fitting component at the bottom of the balance disc 8 contacts the surface of the protective door leaf 6. Based on the different curvatures of the curved surface of the protective door leaf 6, the adaptive ball 13 drives the telescopic rod 12 to adaptively extend and retract along the inside of the sleeve rod 11 (the spring inside the sleeve rod 11 undergoes elastic deformation synchronously), thereby ensuring that the adaptive ball 13 always remains in contact with the curved surface of the protective door leaf 6, and thus maintaining a preset horizontal distance between the welding torch 7 and the welding surface. After the first layer of welding is completed, the welding torch 7 moves via the slide table 4 to the side of the protective door leaf 6 that has been welded (i.e., the horizontal weld point area on the curved surface side). At this time, the four detection rods 14 in the upgrade assembly simultaneously contact the surface of the first layer of weld points. Under the support force of the weld points, the detection rods 14 simultaneously retract towards the balance disk 8. During the retraction process, the detection rods 14 push the drive ring 18 upward. The drive ring 18 drives the upgrade sleeve 9 to move upward through the drive rod, thereby driving the welding gun 7 to rise one step simultaneously (the upgrade spacing parameters of the welding gun 7 need to be preset in advance according to the number of welding layers and passes), completing the precise adjustment of the welding spacing and preparing for subsequent layer welding. In addition, when the adaptive bonding assembly performs arc-shaped surface adaptation and extension, the hinge piece 15 on the outer wall of the telescopic rod 12 at the center will simultaneously drive the connecting rod 17 to slide along the adaptation groove opened on the detection rod 14, thereby driving the detection rod 14 to rotate outward, effectively avoiding jamming between the telescopic rod 12 and the detection rod 14 during the extension and retraction process. And when all the detection rods 14 simultaneously contact the weld points, they will jointly push the drive ring 18 upward to ensure the accuracy and synchronization of the upgrade action of the welding gun 7.

[0031] The inner wall of the adapting sleeve 10 is provided with a sealing sleeve 20, and a cavity is provided between the sealing sleeve 20 and the adapting sleeve 10. The inner wall of the sealing sleeve 20 is provided with a sliding groove.

[0032] The outer wall of the stepped sleeve 9 is fixedly connected with symmetrically distributed sliders 23. One end of the slider 23 slides through the groove, and the other end is placed in the cavity.

[0033] The slider 23 is located on both outer walls of the cavity and is rotatably provided with movable buckles 25. The two outer walls of the slider 23 are fixedly connected with pawls 24, and the ends of the pawls 24 are in contact with the movable buckles 25.

[0034] The movable buckle 25 has an arc-shaped groove on the side away from the pawl 24. The groove opening is flared, the bottom is a smooth arc surface, and the edge of the groove opening is rounded. The pawl 24 is specifically an elastic structure to adapt to the arc-shaped groove of the movable buckle 25.

[0035] In this embodiment, the chute provides precise guidance for the up-and-down movement of the step-up sleeve 9, preventing deviation or tilting when the step-up sleeve 9 moves the welding torch 7, and ensuring the consistency of the distance between the welding torch 7 and the welding surface after step-up. The elastic characteristics of the pawl 24 and the arc-shaped groove of the movable buckle 25 form a flexible limiting fit: when the step-up sleeve 9 moves the slider 23 upward, the pawl 24 can elastically adapt to the contour of the arc-shaped groove, conform to the groove wall through its own deformation and apply continuous elastic pressure, ensuring that the movable buckle 25 always maintains a stable posture. The flared design of the arc-shaped groove facilitates the quick insertion and adaptation of the pawl 24, and the smooth arc surface and rounded corner transition can reduce the frictional loss between the pawl 24 and the groove, avoiding hard jamming.

[0036] The cavity is fixedly connected with symmetrically distributed toothed pieces 22, which are respectively placed on both sides of the slider 23, and the teeth inside are movably engaged with the movable buckle 25.

[0037] In this embodiment, when the lifting sleeve 9 moves the slider 23 upward, the movable latch 25, under the continuous elastic support of the elastic pawl 24, precisely engages with the teeth of the toothed plate 22 one by one. Each tooth engagement corresponds to one level of lifting distance positioning, ensuring that the lifting distance of the welding torch 7 is completely matched with the preset welding layer and pass requirements. This effectively prevents the welding torch 7 from shifting downward due to equipment vibration, its own weight, or welding impact after lifting, ensuring the consistency and stability of the welding distance at each level. At the same time, the unidirectional engagement characteristic of the teeth and the movable latch 25 ensures the irreversibility of the lifting action, preventing lifting failure due to misoperation. When the slider 23 moves the movable latch 25 to the top position of the inner wall of the toothed piece 22, the pawl 24 will engage in the arc-shaped groove of the movable latch 25, causing the movable latch 25 to rotate and fit into the area of ​​the inner wall of the toothed piece 22 where no teeth are provided. When the slider 23 moves the movable latch 25 down to the bottom, the movable latch 25 touches the bottom of the arc-shaped groove inside the toothed piece 22 again. At this time, the pawl 24 undergoes elastic deformation, thereby pushing the movable latch 25 back to its initial state, preparing for the next round of step-up positioning.

[0038] The outer wall of the adaptable ball 13 is covered with a wear-resistant rubber layer, and the surface of the wear-resistant rubber layer is provided with anti-slip texture.

[0039] In this embodiment, the wear-resistant rubber layer enhances the adhesion between the adapting ball 13 and the surface of the protective door leaf 6. The wear-resistant rubber layer has good elasticity and wear resistance, which can undergo slight deformation when in contact with the arc-shaped surface, increasing the contact area and ensuring a tight fit without loosening. It can also resist the wear caused by long-term friction and extend the service life of the adapting ball 13. The anti-slip texture on the surface further enhances the contact friction and effectively prevents the adapting ball 13 from slipping or shifting when it is in contact with the arc-shaped surface.

[0040] The inner wall of the sleeve rod 11 is provided with a guide groove, and the outer wall of the telescopic rod 12 is fixedly connected with a guide block that matches the guide groove. The guide block is slidably disposed in the guide groove.

[0041] In this embodiment, the guide block and guide groove are used to limit the movement trajectory of the telescopic rod 12. The precise fit between the guide block and the guide groove can prevent the telescopic rod 12 from rotating, shifting, or jamming when it extends or retracts within the sleeve 11, ensuring that the telescopic rod 12 always moves in a straight line along the axial direction of the sleeve 11. This ensures the extension and retraction accuracy of the adaptive fitting component, allowing the adaptive ball 13 to accurately respond to the curvature changes of the arc surface and always maintain a close fit with the surface of the protective door leaf 6. This, in turn, maintains the stability of the distance between the welding torch 7 and the welding surface, while reducing frictional wear between the telescopic rod 12 and the inner wall of the sleeve 11, thus improving the smoothness of the mechanism's operation and its service life.

[0042] A ring-shaped buffer spring is fixedly connected to the top of the drive ring 18, and the other end of the buffer spring abuts against the bottom of the balance disc 8.

[0043] In this embodiment, the elastic deformation characteristics of the buffer spring are utilized to achieve buffering and reset assistance for the step-up action. When the detection rod 14 retracts synchronously and pushes the drive ring 18 upward, the buffer spring will be compressed and undergo elastic deformation, converting part of the pushing force into elastic potential energy, thereby alleviating the hard impact between the drive ring 18 and the balance plate 8 and preventing damage to the components due to the impact; when the step-up action is completed or reset is required, the elastic restoring force of the buffer spring can assist the drive ring 18 to fall back smoothly, ensuring smooth connection of subsequent actions of the step-up component.

[0044] The connecting rod 17 is fixedly connected to the slide rod 21 on both sides of the inner end of the movable groove 16.

[0045] In this embodiment, the slide bar 21 can convert the sliding friction between the end of the connecting rod 17 and the inner wall of the movable groove 16 into the rolling friction between the slide bar 21 and the groove wall or a smoother sliding friction, which greatly reduces the motion resistance and avoids tilting and jamming of the end of the connecting rod 17 due to unilateral force.

[0046] Working principle: When using this high-efficiency automated welding device based on protective door processing, the protective door leaf 6 to be welded is first placed on the upper surface of the welding platform 3 to complete the workpiece positioning before welding. Subsequently, the welding torch 7 moves to the position directly above the desired welding location via the slide table 4 at the top of the welding stand 1. Then, the welding torch 7 moves downward, causing the adaptive ball 13 in the adaptive bonding component at the bottom of the balance disc 8 to contact the surface of the protective door leaf 6. Based on the different curvatures of the curved surface of the protective door leaf 6, the adaptive ball 13 drives the telescopic rod 12 to adaptively extend and retract along the inside of the sleeve rod 11 (the spring inside the sleeve rod 11 undergoes elastic deformation synchronously). The guide groove on the inner wall of the sleeve rod 11 and the guide block on the outer wall of the telescopic rod 12 precisely match, restricting the telescopic rod 12 to move linearly along the axial direction and preventing it from rotating and deviating. This ensures that the adaptive ball 13 is always tightly bonded to the curved surface of the protective door leaf 6. At the same time, during the extension and retraction of the adaptive bonding component, the hinge piece 15 at the center of the telescopic rod 12 drives the connecting rod 17 to slide along the movable groove 16 of the detection rod 14. The sliding rods 21 on both sides of the end of the connecting rod 17 reduce the sliding resistance and prevent jamming, thereby driving the detection rod 14 to rotate outward and preventing jamming and interference with the telescopic rod 12. After the first layer of welding is completed, the welding torch 7 moves via the slide table 4 to the side of the protective door leaf 6 where welding has been completed (i.e., the horizontal weld point area on the side of the arc-shaped surface). At this time, the four detection rods 14 in the step-up assembly simultaneously contact the surface of the first layer of weld points. Under the support force of the weld points, the detection rods 14 simultaneously retract towards the balance plate 8, pushing the drive ring 18 upward during the retraction process. The annular buffer spring at the top of the drive ring 18 undergoes elastic deformation under compression, relieving the hard impact. At the same time, the drive ring 18 drives the step-up sleeve 9 to move upward via the push rod 19. The slider 23 on the outer wall of the step-up sleeve 9 slides smoothly along the groove on the inner wall of the sealing sleeve 20, providing precise guidance for the step-up movement. During the step-up process, the movable latches 25 on both sides of the slider 23, under the continuous support of the elastic pawl 24, precisely engage with the teeth of the toothed plate 22 in the cavity one by one. Each engagement completes one step of step-up positioning, ensuring that the step-up spacing of the welding torch 7 matches the preset number of welding layers and passes. Moreover, the unidirectional engagement characteristic prevents the welding torch 7 from shifting downwards due to vibration, gravity, etc., ensuring spacing stability. When the slider 23 moves the movable latches 25 to the top of the toothed plate 22, the pawl 24 engages in the arc-shaped groove of the movable latches 25, causing the movable latches 25 to rotate and fit against the toothless area of ​​the toothed plate 22. When subsequent reset is required, the slider 23 moves the movable latches 25 down to the bottom of the arc-shaped groove of the toothed plate 22, and the elastic deformation of the pawl 24 pushes the movable latches 25 to reset, preparing for the next step-up.

[0047] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency automated welding device based on protective door processing, comprising a welding stand (1), a shelf (2) disposed at the bottom of the welding stand (1), a welding platform (3) disposed at the center of the welding stand (1), and a sliding table (4) disposed at the top of the welding stand (1), characterized in that: The welding stand (1) also includes a mounting block (5) fixedly connected to the bottom of the slide (4). The protective door (6) is placed on the upper surface of the welding platform (3); The welding torch (7) is mounted on the inside of the mounting block (5) via a mounting bracket; The balance disc (8) is fitted onto the welding torch (7); The fitting sleeve (10) is fixedly nested in the center of the inner wall of the balance disc (8); The stepped sleeve (9) is fixedly connected to the outer wall of the welding torch (7); An adaptive fitting assembly is set at the bottom of the balance plate (8) based on the arc surface of the adaptive negative pressure contact protective door leaf (6) to maintain the welding distance between the welding torch (7) and the protective door leaf (6); An ascending assembly with a welding spacing of ascending sleeve (9) and ascending welding gun (7) set at the bottom of the balance plate (8) based on synchronous contact welding points; The adaptive fitting component includes a sleeve rod (11) arranged at equal angles at the bottom of the balance disc (8), a telescopic rod (12) slidably disposed in the sleeve rod (11), and an adaptive ball (13) rotatably disposed at the end of the telescopic rod (12). A spring is provided in the sleeve rod (11), one end of which is connected to the end of the telescopic rod (12) located in the sleeve rod (11). A hinge piece (15) is fixedly connected to the outer wall of the telescopic rod (12) at the center. The upgrade assembly includes a push rod (19) fixedly connected to the bottom of the upgrade sleeve (9), a drive ring (18) fixedly connected to the bottom of the push rod (19), and a detection rod (14) rotatably arranged at the bottom of the drive ring (18) at equal angles. The detection rod (14) has a movable groove (16) and a connecting rod (17) is slidably arranged in the movable groove (16). The other end of the connecting rod (17) is hinged to the hinge piece (15).

2. The high-efficiency automated welding device based on protective door processing according to claim 1, characterized in that: The inner wall of the adapting sleeve (10) is provided with a sealing sleeve (20), and a cavity is provided between the sealing sleeve (20) and the adapting sleeve (10). The inner wall of the sealing sleeve (20) is provided with a sliding groove.

3. The high-efficiency automated welding device based on protective door processing according to claim 1, characterized in that: The outer wall of the upgraded sleeve (9) is fixedly connected with sliders (23) arranged symmetrically. One end of the slider (23) slides through the groove, and the other end is placed in the cavity.

4. The high-efficiency automated welding device based on protective door processing according to claim 3, characterized in that: The slider (23) is provided with movable buckles (25) on both outer walls of the cavity. The slider (23) is fixedly connected with pawls (24) on both outer walls. The ends of the pawls (24) are in contact with the movable buckles (25).

5. The high-efficiency automated welding device based on protective door processing according to claim 4, characterized in that: The movable buckle (25) has an arc-shaped groove on the side away from the pawl (24). The groove opening is set with an flared structure, the bottom of the groove is a smooth arc surface, and the edge of the groove opening is provided with a rounded transition part. The pawl (24) is specifically an elastic structure to elastically adapt to the arc-shaped groove of the movable buckle (25).

6. The high-efficiency automated welding device based on protective door processing according to claim 3, characterized in that: The cavity is fixedly connected with symmetrically distributed toothed pieces (22), which are respectively placed on both sides of the slider (23), and the teeth inside are movably engaged with the movable buckle (25).

7. The high-efficiency automated welding device based on protective door processing according to claim 1, characterized in that: The outer wall of the adaptive ball (13) is covered with a wear-resistant rubber layer, and the surface of the wear-resistant rubber layer is provided with anti-slip texture.

8. The high-efficiency automated welding device based on protective door processing according to claim 1, characterized in that: The inner wall of the sleeve rod (11) is provided with a guide groove, and the outer wall of the telescopic rod (12) is fixedly connected with a guide block that is adapted to the guide groove. The guide block is slidably disposed in the guide groove.

9. The high-efficiency automated welding device based on protective door processing according to claim 1, characterized in that: The top of the drive ring (18) is fixedly connected with a ring-shaped buffer spring, and the other end of the buffer spring abuts against the bottom of the balance disc (8).

10. The high-efficiency automated welding device based on protective door processing according to claim 1, characterized in that: The connecting rod (17) is fixedly connected to the slide rod (21) on both sides of the inner end of the movable groove (16).

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