Laser welding equipment for pipe joint welding of household gas cooker

Abstract

The invention relates to the technical field of laser welding, and discloses household gas cooker pipe joint welding laser welding equipment which comprises a welding table and a bearing box, a protective supporting mechanism is arranged in the bearing box, and the protective supporting mechanism is opened or closed according to different positions of the bearing box on the upper surface of the welding table. Compared with the prior art, the laser welding device for the kitchen range pipe joint achieves the effect of automatically converting assembly abutting force into limiting force through the use of a guide rod, a first connecting spring and a first fillet block. When an operator installs a kitchen range pipe joint and pushes the kitchen range pipe joint, the guide rod is pressed to retreat, the connecting spring is compressed to transmit power through the first rounded corner block, the guide rod can be placed in the kitchen range pipe joint or a pipe fitting, the supporting and protecting effects are achieved, and the rapid positioning and clamping effects are achieved through sliding connection and matching of the chuck and the guide rod. The guide rod serves as a part of the trigger mechanism and also serves as a mounting guide shaft of a kitchen range pipe joint.

Description

Technical Field

[0001] This invention relates to the field of laser welding technology, specifically to a laser welding device for welding pipe joints of household gas stoves. Background Technology

[0002] Gas stove pipe fittings are used in gas stove systems to establish a reliable and sealed airflow channel that can withstand the system's working pressure and flow. They are mostly made of carbon steel, stainless steel, or brass. When selecting a fitting, it is necessary to comprehensively consider the system pressure, media compatibility, vibration environment, and installation requirements to ensure that the entire gas stove system operates safely and stably without leaks. During processing, related welding operations are required. Laser welding of gas stove pipe fittings is a high-precision welding process in the manufacturing industry. It is mainly used to permanently seal the connection between the fitting body and the metal pipeline. This technology uses a high-energy-density laser beam as a heat source to precisely heat the contact area of ​​the workpiece, causing it to melt rapidly and fuse to form an extremely strong weld after cooling.

[0003] Existing laser welding technology for cooktop pipe joints uses a high-energy-density laser beam as a heat source. By precisely controlling the spot position, power, and welding speed, it performs localized high-speed fusion connection between the joint and the pipe. This process has significant advantages such as a narrow heat-affected zone, small deformation, high depth-to-width ratio, and fast welding speed. It can achieve a dense weld with metallurgical bonding and effectively avoid defects such as porosity and lack of fusion that are common in traditional welding.

[0004] However, when laser welding is performed on the pipe joints of a fixed model of stove, welding spatter can easily contaminate the inside of the joint and the internal threads, scratch the surface of the parts, accelerate wear and cause the system performance to decline or become stuck, and the spatter remaining on the threads can damage the integrity of the sealing surface, causing leakage at the threaded connection. At the same time, it increases the difficulty of assembly and may even damage the matching parts, directly affecting the reliability and safety of the entire system.

[0005] In addition, the pipe fittings may deform under clamping force or heat. When the pipe fittings are clamped with strong force, they may be flattened (out of round). During welding, the local high temperature under heat can also cause the pipe wall to deform. The out-of-round phenomenon can lead to defects such as incomplete fusion and undercut in the weld, which significantly reduces the connection strength and airtightness. It is very easy to leak under high pressure conditions. At the same time, deformed pipe fittings may also cause problems such as increased flow resistance and system vibration.

[0006] There is no structure that can prevent debris from entering the stove pipe joints and fittings during welding, and there is no structure that can prevent the pipe fittings from deforming under clamping force or heat while ensuring that debris cannot enter.

[0007] Therefore, we propose a laser welding device for welding pipe joints of household gas stoves to solve this deficiency in the existing technology. Summary of the Invention

[0008] To address the problems of existing technologies failing to prevent welding debris from entering the stove pipe joints and fittings during welding, and failing to prevent the fittings from deforming under clamping force or heat, this invention provides a laser welding device for welding household gas stove pipe joints.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a laser welding device for welding pipe joints of household gas stoves, comprising a welding table and a receiving box, wherein a protective support mechanism is provided inside the receiving box, and the protective support mechanism is opened or closed depending on the position of the receiving box on the upper surface of the welding table; The power input end of the protective support mechanism is equipped with a telescopic mechanism that converts the clamping force into a retracting force. The telescopic mechanism opens and closes by abutting or disengaging the stove pipe joint and the pipe fitting. The telescopic mechanism, during compression and rebound, drives the opening and closing of the limiting mechanism, which in turn provides support or protection for the pipe fittings and stove pipe joints. The protective support mechanism consists of a telescopic mechanism and a limiting mechanism.

[0010] Furthermore, the limiting mechanism includes a connecting box, a second connecting spring, a second damping shaft, a second rounded corner block, a sliding connecting plate, and a pull plate. The outer surface of the connecting box is fixedly installed with the interior of the receiving box. The outer surface of the sliding connecting plate is slidably connected with the inner wall of the receiving box. The bottom of the pull plate is fixedly installed with the top of the sliding connecting plate. One end of the second connecting spring is fixedly connected with the bottom of the sliding connecting plate. One end of the second damping shaft is fixedly installed with one end of the sliding connecting plate. The outer surface of the second rounded corner block is slidably connected with the inner wall of the connecting box. The top of the second rounded corner block is fixedly installed with the other end of the second connecting spring and the second damping shaft.

[0011] Furthermore, the telescopic mechanism includes a guide rod, a connecting spring, a damping shaft, and rounded corner blocks. One end of the connecting spring is fixedly installed to the left side of the inside of the receiving box, and one end of the damping shaft is fixedly installed to the left side of the inside of the receiving box. The left side of the guide rod is fixedly connected to the other end of the connecting spring and the damping shaft. The right sides of the two sets of rounded corner blocks are fixedly installed to the upper and lower surfaces of the left side of the guide rod.

[0012] Furthermore, electric slide rails are fixedly installed on both sides of the upper surface of the welding platform, and a sliding plate is slidably connected to the outer surface of the electric slide rail. A fixed plate is fixedly installed on the upper surface of the sliding plate, and a rotating mechanism is provided on the right side of the fixed plate.

[0013] Furthermore, the rotating mechanism includes a limiting block, a rotating shaft, a gear, a rack, and a limiting plate. The bottom of the limiting block is fixedly installed on the upper surface of the sliding plate. The outer surface of the rotating shaft is rotatably connected to the inner wall of the rotating shaft, and the outer surface of the rotating shaft is rotatably connected to the inner wall of the fixed plate. The inside of the gear is fixedly installed on the outer surface of the rotating shaft. The upper surface of the rack meshes with the outer surface of the gear. The left side of the limiting plate is fixedly installed on the right side of the fixed plate. The inner wall of the limiting plate is slidably connected to the outer surface of the rack. A placement plate is fixedly installed at one end of the rotating shaft. A connecting frame is fixedly installed on the right side of the placement plate. A chuck is provided on the right side of the connecting frame, and the inside of the chuck is slidably connected to the outer surface of the guide rod.

[0014] Furthermore, a vertical frame is attached to the upper surface of the welding table, and the top of the vertical frame is fixedly installed to the bottom of the rack.

[0015] Furthermore, a rectangular plate is fixedly installed inside the front end of the welding table, and a hydraulic push rod is fixedly installed on the front side of the rectangular plate. A push block is fixedly connected to the rear end of the output shaft of the hydraulic push rod. The shape and size of the back of the push block are the same as the shape and size of the front of the rack. Contact switches are fixedly installed on both sides inside the welding table, and the left opening of the contact switch is the same as the shape and size of the vertical frame. The contact switch controls the opening and closing operation of the hydraulic push rod by contacting the vertical frame.

[0016] Furthermore, the welding station has a receiving groove inside, and a collection box is slidably connected to the inner wall of the receiving groove. A pull frame is fixedly installed on the right side of the collection box.

[0017] Furthermore, an extension plate is fixedly installed on the back of the welding station, a support frame is fixedly installed on the upper surface of the extension plate, a receiving plate is fixedly installed on the upper surface of the support frame, a laser welding machine body is provided on the upper surface of the receiving plate, and a welding head is provided at the bottom of the laser welding machine body.

[0018] Compared with the prior art, the present invention provides a laser welding device for welding pipe joints of household gas stoves, which has the following beneficial effects: 1. This laser welding device for stove pipe fittings, through the use of a guide rod, connecting spring 1, and rounded corner block 1, achieves the effect of automatically converting the assembly resistance force into a limiting force. When the operator inserts the stove pipe fitting and pushes it, the guide rod is pressed back, compressing the connecting spring 1 and transmitting power through the rounded corner block 1. This allows the guide rod to be placed inside the stove pipe fitting or pipe, achieving a supporting and protective effect. The sliding connection between the chuck and the guide rod achieves rapid positioning and clamping. The guide rod not only serves as part of the triggering mechanism but also as the installation guide shaft for the stove pipe fitting, ensuring that the fitting can be quickly and accurately installed in the predetermined position, improving assembly accuracy and efficiency.

[0019] 2. This laser welding device for stove pipe joints uses an electric slide rail to drive a sliding plate to move in opposite directions, thereby precisely adjusting the distance between the two end chucks to achieve a more accurate effect when limiting the position. When the sliding plate moves to the predetermined position, the vertical bracket on it will insert and trigger a contact switch, which can then rotate the stove pipe joint that has been limited, achieving a more complete welding effect. Through the use of gears, racks, and limiting plates, a more stable effect can be achieved when the stove pipe joint or fitting rotates. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a laser welding device for welding pipe joints of household gas stoves proposed in this invention; Figure 2 This invention proposes a laser welding device for welding pipe joints of household gas stoves. Figure 1 A schematic diagram of the left-side view structure; Figure 3 This invention proposes a laser welding device for welding pipe joints of household gas stoves. Figure 1 A schematic diagram of the structure viewed from below; Figure 4 This invention proposes a laser welding device for welding pipe joints of household gas stoves. Figure 1 Partial structural diagram; Figure 5 This invention proposes a laser welding device for welding pipe joints of household gas stoves. Figure 4 A top-view structural diagram; Figure 6 This invention proposes a laser welding device for welding pipe joints of household gas stoves. Figure 5 Enlarged schematic diagram of the structure at point A; Figure 7 This invention proposes a laser welding device for welding pipe joints of household gas stoves. Figure 1 A partial structural diagram; Figure 8 This invention proposes a laser welding device for welding pipe joints of household gas stoves. Figure 7 Enlarged schematic diagram of the structure at point B.

[0021] In the diagram: 1. Welding table; 2. Extension plate; 3. Support frame; 4. Receiving plate; 5. Laser welding machine body; 6. Welding head; 7. Receiving groove; 8. Collection box; 9. Pulling frame; 10. Electric slide rail; 11. Sliding plate; 12. Fixing plate; 13. Limiting block; 14. Rotating shaft; 15. Gear; 16. Rack; 17. Limiting plate; 18. Vertical frame; 19. Contact switch; 20. Rectangular plate; 21. Hydraulic push rod; 22. Pushing block; 23. Placement plate; 24. Connecting frame; 25. Chuck; 26. Receiving box; 27. Guide rod; 28. Connecting spring one; 29. ​​Damping shaft one; 30. Rounded corner block one; 31. Connecting box; 32. Connecting spring two; 33. Damping shaft two; 34. Rounded corner block two; 35. Sliding connecting plate; 36. Pulling plate. Detailed Implementation

[0022] 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.

[0023] Please see Figure 7 and Figure 8 A laser welding device for welding pipe joints of household gas stoves includes a welding table 1 and a receiving box 26. The receiving box 26 is provided with a protective support mechanism inside. The protective support mechanism can be opened or closed by the different positions of the receiving box 26 on the upper surface of the welding table 1. The power input end of the protective support mechanism is equipped with a telescopic mechanism that converts the clamping force into a retracting force. The telescopic mechanism opens and closes by contacting or separating the stove pipe joint from the pipe fitting. The telescopic mechanism moves in compression and rebound, which drives the opening and closing of the limiting mechanism. The opening and closing of the limiting mechanism provides support or protection for the pipe fittings and stove pipe joints. The protective support mechanism consists of a telescopic mechanism and a limiting mechanism. The limiting mechanism includes a connecting box 31, a connecting spring 32, a damping shaft 33, rounded corner blocks 34, a sliding connecting plate 35, and a pull plate 36. The outer surface of the connecting box 31 is fixedly installed to the inside of the receiving box 26. The outer surface of the sliding connecting plate 35 is slidably connected to the inner wall of the receiving box 26. The bottom of the pull plate 36 is fixedly installed to the top of the sliding connecting plate 35. One end of the connecting spring 32 is fixedly connected to the bottom of the sliding connecting plate 35. One end of the damping shaft 33 is fixedly installed to one end of the sliding connecting plate 35. The outer surface of the rounded corner blocks 34 is slidably connected to the inner wall of the connecting box 31. The top of each rounded corner block 34 is fixedly installed to the other end of the connecting spring 32 and the damping shaft 33. The telescopic mechanism includes... It includes a guide rod 27, a connecting spring 28, a damping shaft 29, and rounded corner blocks 30. One end of the connecting spring 28 is fixedly installed inside the left side of the receiving box 26, and one end of the damping shaft 29 is fixedly installed inside the left side of the receiving box 26. The left side of the guide rod 27 is fixedly connected to the other end of the connecting spring 28 and the damping shaft 29. The right sides of the two sets of rounded corner blocks 30 are fixedly installed to the upper and lower surfaces of the left side of the guide rod 27. One end of the rotating shaft 14 is fixedly installed with a placement plate 23. The right side of the placement plate 23 is fixedly installed with a connecting frame 24. The right side of the connecting frame 24 is provided with a chuck 25, and the inside of the chuck 25 is slidably connected to the outer surface of the guide rod 27. The upper surface of the welding table 1 is attached to a vertical frame 18, and the top of the vertical frame 18 is fixedly installed to the bottom of the rack 16.

[0024] Specifically, the combined use of connecting spring 32 and damping shaft 33 allows the sliding connecting plate 35 to move smoothly. Spring 32 provides elastic support, while damping shaft 33 acts as a buffer and shock absorber, ensuring a more stable movement of the rounded corner block 34. This better supports and protects the pipe fittings and stove pipe joints, preventing damage from collisions. Similarly, connecting spring 28 and damping shaft 29 in the telescopic mechanism play a similar role, ensuring the stability of the guide rod 27's movement and thus guaranteeing the reliability of the entire device. The protective support mechanism opens or closes at different positions of the receiving box 26 on the upper surface of the welding table 1, providing timely and precise protection and support for the stove pipe joints and fittings. This improves the stability and safety of the welding process, reduces errors and inconvenience caused by manual operation of the protective support, and the telescopic mechanism drives the opening and closing of the limit mechanism during compression and rebound, forming a linkage mechanism that makes the operation of the entire device smoother and more efficient, reducing unnecessary operation steps and energy consumption.

[0025] Please see Figure 5 and Figure 6Electric slide rails 10 are fixedly installed on both sides of the upper surface of the welding table 1. A sliding plate 11 is slidably connected to the outer surface of the electric slide rail 10. A fixed plate 12 is fixedly installed on the upper surface of the sliding plate 11. A rotating mechanism is provided on the right side of the fixed plate 12. The rotating mechanism includes a limit block 13, a rotating shaft 14, a gear 15, a rack 16, and a limit plate 17. The bottom of the limit block 13 is fixedly installed to the upper surface of the sliding plate 11. The outer surface of the rotating shaft 14 is rotatably connected to the inner wall of the rotating shaft 14, and the outer surface of the rotating shaft 14 is rotatably connected to the inner wall of the fixed plate 12. The inside of the gear 15 is fixedly installed to the outer surface of the rotating shaft 14, and the upper surface of the rack 16 is fixedly installed to the outer surface of the gear 15. The surface is engaged, the left side of the limiting plate 17 is fixedly installed with the right side of the fixing plate 12, the inner wall of the limiting plate 17 is slidably connected with the outer surface of the rack 16, a rectangular plate 20 is fixedly installed inside the front end of the welding table 1, a hydraulic push rod 21 is fixedly installed on the front side of the rectangular plate 20, a push block 22 is fixedly connected to the rear end of the output shaft of the hydraulic push rod 21, the shape and size of the back of the push block 22 are the same as the shape and size of the front of the rack 16, and contact switches 19 are fixedly installed on both sides inside the welding table 1, and the left opening of the contact switch 19 is the same as the shape and size of the vertical frame 18. The contact switch 19 controls the opening and closing operation of the hydraulic push rod 21 by contacting the vertical frame 18.

[0026] Specifically, the limiting block 13 provides stable support for the rotating shaft 14, which is rotatably connected to the fixed plate 12. The gear 15 is fixedly mounted on the rotating shaft 14 and meshes with the rack 16. The movement of the rack 16 drives the gear 15 to rotate, which in turn causes the rotating shaft 14 to rotate, thus enabling the rotation of the stove pipe joints and fittings placed on the relevant components. This allows for precise control of the rotation angle of the stove pipe joints and fittings according to welding process requirements, ensuring welding quality. The limiting plate 17 limits and guides the rack 16, ensuring its stability during movement and preventing deviation. This guarantees the normal meshing of the gear 15 and rack 16 and the stable operation of the rotating mechanism. Furthermore, when the vertical frame 18 moves to a position that matches the shape and size of the opening on the left side of the contact switch 19 and comes into contact with it, it can automatically control the opening or closing operation of the hydraulic push rod 21, reducing the tediousness and errors of manual operation and improving production efficiency. At the same time, the installation position of the contact switch 19 can be flexibly adjusted according to actual welding requirements, further enhancing the adaptability and flexibility of the device.

[0027] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4The welding table 1 has a receiving groove 7 inside, and a collection box 8 is slidably connected to the inner wall of the receiving groove 7. A pull frame 9 is fixedly installed on the right side of the collection box 8. An extension plate 2 is fixedly installed on the back of the welding table 1. A support frame 3 is fixedly installed on the upper surface of the extension plate 2. A receiving plate 4 is fixedly installed on the upper surface of the support frame 3. A laser welding machine body 5 is set on the upper surface of the receiving plate 4. A welding head 6 is set at the bottom of the laser welding machine body 5.

[0028] Specifically, the receiving groove 7 inside the welding table 1 is slidably connected to the collection box 8. During the laser welding process, the welding slag produced will naturally fall into the collection box 8, allowing the welding slag to be collected in a concentrated manner. This prevents the welding slag from scattering on the surface of the welding table 1 and the surrounding environment, keeping the work area clean. When the welding slag in the collection box 8 accumulates to a certain level, the operator only needs to pull the collection box 8 out of the receiving groove 7 by pulling the frame 9 to easily and quickly clean the welding slag, greatly improving cleaning efficiency and reducing cleaning time and labor costs. The welding head 6 at the bottom of the laser welding machine body 5 is reasonably positioned, enabling accurate welding of stove pipe joints and fittings placed on the welding table 1. The relative position between the welding head 6 and the workpiece can remain stable, which is conducive to achieving precise welding trajectory control and improving the versatility and adaptability of the device.

[0029] It should be added that the limiting block 13 not only supports the rotating shaft 14, but also limits the rotation range of the rotating shaft 14, preventing the gear 15 from disengaging from the rack 16 due to excessive rotation angle, or causing related components to collide with other structures, thus ensuring the safety of the device operation. In terms of precise positioning, the electric slide rail 10 has a high-precision positioning function, which can accurately control the moving distance of the sliding plate 11, allowing the rotating mechanism on the fixed plate 12 and the stove pipe joints and fittings to be welded to accurately reach the designated welding position. The trigger position of the contact switch 19 is also precisely set. When the vertical frame 18 moves to exactly contact the contact switch 19, it can promptly and accurately control the action of the hydraulic push rod 21, thereby pushing the rack 16 to move, achieving precise rotation control of the rotating mechanism and ensuring accurate welding angles.

[0030] Working principle: The operator can insert the steel pipe into the chuck 25, and then fit the stove pipe connector onto the other end of the steel pipe, abutting against the guide rod 27. Through the electrical connection of the external power source, the electric slide rails 10 on both sides of the welding table 1 drive the sliding plates 11 to move towards each other, so that the chucks 25 at both ends are precisely aligned and clamp the workpiece. When the connector is pushed, the guide rod 27 is pressed, causing the rounded block 30 to move backward, compressing the connecting spring 28 and the damping shaft 29. This abutting force is converted into the backward force of the guide rod 27, opening the telescopic mechanism. The backward movement of the guide rod 27, through the rounded block 30, presses against the rounded block 34, causing the sliding connecting plate 35 in the limiting mechanism to move upward. At this time, the guide rod 27 will move to the rear side of the rounded block 34, limiting the guide rod 27. Simultaneously, the guide rod 27 can be connected to another set of guide rods 27. The guide rod 27 is stably placed inside the stove pipe joint and fittings, providing related protective support. When the vertical frame 18 moves with the sliding plate 11 to trigger the contact switch 19 during continuous movement, the hydraulic push rod 21 is activated, pushing the rack 16 to move linearly. The rack 16 drives the gear 15 to rotate, thereby driving the workpiece to rotate precisely and uniformly through the rotating shaft 14, ensuring that the laser welding head 6 can perform complete welding. When welding is completed, the generated debris and other flying debris fall into the collection box 8 below. After processing, the workpiece can be removed, and the pull plate 36 can be pulled to allow the guide rod 27 to return to its original state for the next processing operation.

[0031] This application includes a PLC controller, a control panel, and a power supply battery, and belongs to the prior art for equipment control and operation.

[0032] Beneficial effects: The electric slide rails 10 and sliding plate 11 on both sides of the welding table 1 work together to precisely adjust the welding position and meet diverse welding needs. The components in the rotating mechanism work together to flexibly and stably control the rotation of the stove pipe joints and fittings, ensuring accurate welding angles. The telescopic mechanism and the limiting mechanism work together to effectively support and protect the fittings and stove pipe joints, improving welding stability and safety. The contact switch 19 and hydraulic push rod 21 constitute an intelligent control system, simplifying the operation process and improving production efficiency. The receiving groove 7 and the collection box 8 facilitate the collection and cleaning of welding slag, keeping the working environment clean. The extension plate 2, support frame 3, etc. provide stable support for the laser welding machine body 5, ensuring that the welding head 6 can operate accurately and improving welding quality. Overall, the efficiency and quality of laser welding of stove pipe joints are improved.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser welding device for welding pipe joints of household gas stoves, characterized in that: It includes a welding table (1) and a receiving box (26). The receiving box (26) is provided with a protective support mechanism inside. The protective support mechanism can be opened or closed depending on the position of the receiving box (26) on the upper surface of the welding table (1). The power input end of the protective support mechanism is equipped with a telescopic mechanism that converts the clamping force into a retracting force. The telescopic mechanism opens and closes by abutting or disengaging the stove pipe joint and the pipe fitting. The telescopic mechanism, during compression and rebound, drives the opening and closing of the limiting mechanism, which in turn provides support or protection for the pipe fittings and stove pipe joints. The protective support mechanism consists of a telescopic mechanism and a limiting mechanism.

2. The laser welding equipment for household gas stove pipe joints according to claim 1, characterized in that: The limiting mechanism includes a connecting box (31), a second connecting spring (32), a second damping shaft (33), a second rounded corner block (34), a sliding connecting plate (35), and a pull plate (36). The outer surface of the connecting box (31) is fixedly installed inside the receiving box (26). The outer surface of the sliding connecting plate (35) is slidably connected to the inner wall of the receiving box (26). The bottom of the pull plate (36) is fixedly installed to the top of the sliding connecting plate (35). One end of the second connecting spring (32) is fixedly connected to the bottom of the sliding connecting plate (35). One end of the second damping shaft (33) is fixedly installed to one end of the sliding connecting plate (35). The outer surface of the second rounded corner block (34) is slidably connected to the inner wall of the connecting box (31). The top of the second rounded corner block (34) is fixedly installed to the other end of the second connecting spring (32) and the second damping shaft (33).

3. The laser welding equipment for household gas stove pipe joints according to claim 1, characterized in that: The telescopic mechanism includes a guide rod (27), a connecting spring (28), a damping shaft (29), and a rounded corner block (30). One end of the connecting spring (28) is fixedly installed inside the left side of the receiving box (26). One end of the damping shaft (29) is fixedly installed inside the left side of the receiving box (26). The left side of the guide rod (27) is fixedly connected to the other end of the connecting spring (28) and the damping shaft (29). The right sides of the two sets of rounded corner blocks (30) are fixedly installed to the upper and lower surfaces of the left side of the guide rod (27).

4. The laser welding equipment for household gas stove pipe joints according to claim 1, characterized in that: Electric slide rails (10) are fixedly installed on both sides of the upper surface of the welding table (1). A sliding plate (11) is slidably connected to the outer surface of the electric slide rail (10). A fixed plate (12) is fixedly installed on the upper surface of the sliding plate (11). A rotating mechanism is provided on the right side of the fixed plate (12).

5. The laser welding equipment for welding pipe joints of household gas stoves according to claim 4, characterized in that: The rotating mechanism includes a limiting block (13), a rotating shaft (14), a gear (15), a rack (16), and a limiting plate (17). The bottom of the limiting block (13) is fixedly installed to the upper surface of the sliding plate (11). The outer surface of the rotating shaft (14) is rotatably connected to the inner wall of the rotating shaft (14), and the outer surface of the rotating shaft (14) is rotatably connected to the inner wall of the fixed plate (12). The inside of the gear (15) is fixedly installed to the outer surface of the rotating shaft (14). The rack (16) is... The upper surface meshes with the outer surface of the gear (15). The left side of the limiting plate (17) is fixedly installed with the right side of the fixing plate (12). The inner wall of the limiting plate (17) is slidably connected with the outer surface of the rack (16). One end of the rotating shaft (14) is fixedly installed with a placement plate (23). The right side of the placement plate (23) is fixedly installed with a connecting frame (24). The right side of the connecting frame (24) is provided with a chuck (25), and the interior of the chuck (25) is slidably connected with the outer surface of the guide rod (27).

6. The laser welding equipment for household gas stove pipe joints according to claim 1, characterized in that: The upper surface of the welding table (1) is fitted with a vertical frame (18), and the top of the vertical frame (18) is fixedly installed with the bottom of the rack (16).

7. The laser welding equipment for welding pipe joints of household gas stoves according to claim 1, characterized in that: A rectangular plate (20) is fixedly installed inside the front end of the welding table (1). A hydraulic push rod (21) is fixedly installed on the front side of the rectangular plate (20). A push block (22) is fixedly connected to the rear end of the output shaft of the hydraulic push rod (21). The shape and size of the back of the push block (22) are the same as the shape and size of the front of the rack (16). Contact switches (19) are fixedly installed on both sides inside the welding table (1). The left opening of the contact switch (19) is the same as the shape and size of the vertical frame (18). The contact switch (19) controls the opening and closing operation of the hydraulic push rod (21) by contacting the vertical frame (18).

8. The laser welding equipment for household gas stove pipe joints according to claim 1, characterized in that: The welding station (1) has a receiving groove (7) inside, and a collection box (8) is slidably connected to the inner wall of the receiving groove (7). A pull frame (9) is fixedly installed on the right side of the collection box (8).

9. The laser welding equipment for welding pipe joints of household gas stoves according to claim 1, characterized in that: An extension plate (2) is fixedly installed on the back of the welding table (1). A support frame (3) is fixedly installed on the upper surface of the extension plate (2). A receiving plate (4) is fixedly installed on the upper surface of the support frame (3). A laser welding machine body (5) is provided on the upper surface of the receiving plate (4). A welding head (6) is provided at the bottom of the laser welding machine body (5).

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