Automatic welding machine for fuel gas wall-hanging stove shell

Abstract

The invention relates to the technical field of welding equipment, in particular to a wall-mounted gas boiler shell automatic welding machine which comprises a welding robot, an air cylinder is arranged at the top of the welding robot, and an output rod at the bottom of the air cylinder is connected with a welding part and used for driving the welding part to ascend and descend and welding a U-shaped cover plate and an end cover; and the synchronous feeding part is located on the side wall of the welding robot, an adsorption assembly is arranged at the output end of the lower side of the synchronous feeding part, and the synchronous feeding part is in coupling connection with the welding part and the adsorption assembly through a plurality of connecting rods and used for reciprocating motion of the adsorption assembly. The welding part achieves upward reset action through an air cylinder, meanwhile, the welding part and the synchronous feeding part work cooperatively, end covers to be welded are conveyed to the positioning part, automatic feeding is achieved, and therefore the traditional mode that the end covers need to be placed on a U-shaped cover plate for feeding is abandoned, the falling risk of the end covers is effectively reduced, the working process is greatly simplified, and the production efficiency is improved. And the working efficiency is obviously improved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding equipment, and in particular to an automatic welding machine for the shell of a gas wall-mounted boiler. Background Art

[0002] With the continuous development of the manufacturing industry, higher requirements are put forward for the production efficiency and quality of the shell of a gas wall-mounted boiler. The traditional manual welding method is not only inefficient, but also the welding quality is easily affected by the skill level and working state of the welder, making it difficult to ensure the consistency and stability of the product. The emergence of automatic welding machines can realize the automation and standardization of the welding process, improve production efficiency, reduce labor costs, and at the same time ensure the stability of welding quality to meet the needs of large-scale production.

[0003] Currently, when using an automatic welding machine to perform the welding operation of the U-shaped cover plate and the end cover of the shell of a gas wall-mounted boiler, the adopted process is as follows: First, rely on a robot to place the end cover above the U-shaped cover plate, and then use the robot gripper to transfer the two to below the automatic welding machine. At this time, the clamping mechanism is activated to fix the U-shaped cover plate under the welding machine, and then the welding operation is carried out.

[0004] However, this welding mode has many drawbacks. Firstly, there are obvious defects in the clamping system and it cannot clamp the inner and outer sides of the U-shaped cover plate simultaneously. This causes the U-shaped cover plate to undergo large deformations due to heat during welding or other factors, thus affecting the subsequent welding quality. Secondly, the positioning structure is imperfect. Even if the U-shaped cover plate and the end cover are initially aligned, displacement may still occur during subsequent operations, resulting in a significant reduction in the weld accuracy.

[0005] Furthermore, in the welding process of the U-shaped cover plate and the end cover, the robot needs to pre-place the end cover at the welding position of the U-shaped cover plate. During this process, when the robot transports the U-shaped cover plate with the end cover already placed, the end cover has a risk of falling. Moreover, this additional step lengthens the entire work process and greatly hinders the improvement of work efficiency. Summary of the Invention

[0006] Therefore, the technical problem to be solved by the present invention is: to provide an automatic welding machine that can clamp the U-shaped cover plate inside and outside simultaneously and position the U-shaped cover plate and the end cover.

[0007] The above technical problem is solved by the following technical solution: The present invention provides an automatic welding machine for the shell of a gas wall-mounted boiler, which includes a welding robot. A cylinder is provided at the top of the welding robot, and the output rod at the bottom of the cylinder is connected to a welding part for driving the welding part to lift and perform welding operations on the U-shaped cover plate and the end cover;

[0008] The synchronous loading part is located on the side wall of the welding robot, and an adsorption component is provided at the lower output end. The synchronous loading part, the welding part and the adsorption component are coupled and connected by multiple connecting rods for the reciprocating motion of the adsorption component.

[0009] The clamping part is fixed on the side wall of the welding robot under the welding part. The clamping part includes a protective shell suspended on the side wall of the welding robot through multiple mounting rods. A gear synchronization component is arranged inside the protective shell. The output end of the gear synchronization component is connected to several adapted clamping components, and the gear synchronization component is used to synchronously transmit power to several clamping components.

[0010] The positioning part is arranged in the redundant space reserved at the bottom of the welding part and on the side of the clamping part away from the welding robot for positioning the U-shaped cover plate and the end cover.

[0011] In a preferred embodiment of the automatic welding machine for the outer shell of the gas wall-mounted boiler according to the present invention: The synchronous loading part includes two connecting rod brackets arranged on the side wall of the welding robot. The two connecting rod brackets are arranged oppositely, and each is rotatably connected to two connecting rods. Each of the four connecting rods is connected to the middle adsorption component through a support rod. One linkage rod is arranged on each side of the welding part. One end of the two linkage rods is rotatably connected to the outside of the welding part, and the other end is rotatably connected to the middle position of the connecting rod close to the welding part. A guide plate is arranged below the side of the welding part.

[0012] In a preferred embodiment of the automatic welding machine for the outer shell of the gas wall-mounted boiler according to the present invention: The adsorption component includes a suction cup arranged on the support rod.

[0013] In a preferred embodiment of the automatic welding machine for the outer shell of the gas wall-mounted boiler according to the present invention: The gear synchronization component includes a turntable bearing arranged inside the protective shell. A toothed ring is rotatably connected to the turntable bearing. The outside of the toothed ring is meshed with four driven gears. Each driven gear is installed on a corresponding transmission rod. The transmission rod is rotatably connected inside the protective shell, and its end extends out of the protective shell and is connected to the clamping component outside.

[0014] In a preferred embodiment of the automatic welding machine for the outer shell of the gas wall-mounted boiler according to the present invention: The clamping component includes a cam disk arranged on the transmission rod. Two centrally symmetric arc grooves are opened inside the cam disk. A first slider is slidably connected inside the arc groove. One end of the first slider close to the positioning part is connected to a clamping plate, and a guiding block is arranged at the end of the first slider away from the clamping plate. The guiding block is slidably connected to an adapted guide rod. The guide rod is fixed on a guiding bracket, and the guiding bracket is fixed on the protective shell.

[0015] In a preferred embodiment of the automatic welding machine for the casing of the gas wall-mounted boiler according to the present invention: a synchronous gear is coaxially penetrated and connected to one end of the driven gear away from the U-shaped cover plate, the synchronous gear is meshed with a driving gear, the driving gear is connected to the output end of the motor, and four corresponding placement grooves are formed on the side of the welding robot close to the motor, and the motor is installed in the corresponding placement groove.

[0016] In a preferred embodiment of the automatic welding machine for the casing of the gas wall-mounted boiler according to the present invention: a notch is preset at the position of the protective housing close to the driving gear and the synchronous gear.

[0017] In a preferred embodiment of the automatic welding machine for the casing of the gas wall-mounted boiler according to the present invention: the positioning part includes a spring telescopic rod arranged in the redundant space of the welding part, a pressing plate is arranged at the bottom of the spring telescopic rod, positioning connecting rods are arranged on both sides of the pressing plate, a second slider is arranged at the end of the positioning connecting rod, and two vertically arranged sliding grooves are correspondingly formed on the inner wall of the redundant space of the welding part, and the second slider is slidably connected inside the sliding groove.

[0018] In a preferred embodiment of the automatic welding machine for the casing of the gas wall-mounted boiler according to the present invention: the positioning part further includes a U-shaped positioning seat arranged on the clamping side of the clamping plate, a positioning plate is connected to the top of the U-shaped positioning seat, the inclination angles of the positioning plate and the bottom of the guide plate are mutually matched and are fixedly connected, positioning holes are preset on the positioning plate, and corresponding positioning pins are also arranged at the bottom of the end cover, and a positioning block is also arranged at the bottom of the U-shaped positioning seat.

[0019] In a preferred embodiment of the automatic welding machine for the casing of the gas wall-mounted boiler according to the present invention: an avoidance groove is arranged on the side of the welding robot close to the synchronous feeding part, and a corresponding avoidance space is arranged on the side of the U-shaped positioning seat close to the clamping plate.

[0020] 1. The beneficial effects of the present invention are as follows: after the welding part completes the previous welding task, it realizes the upward reset action by means of the cylinder. At the same time, the welding part and the synchronous feeding part cooperate to convey the end cover to be welded to the positioning part and realize automatic feeding, thus abandoning the traditional method of placing the end cover on the U-shaped cover plate for feeding, effectively reducing the risk of the end cover falling, greatly simplifying the work process, and significantly improving the work efficiency.

[0021] 2. The beneficial effects of the present invention are as follows: The preliminary positioning of the end cover is achieved by using the positioning plate and the positioning holes, and then the stable positioning of the end cover is completed through the combination of the pressing plate and the spring telescopic rod. At the same time, a U-shaped positioning seat is provided. The robot grabs the U-shaped cover plate and places it on the U-shaped positioning seat. The U-shaped cover plate is accurately positioned under the action of the pressure of the robot and the limiting effect of the bottom positioning block, so that both the U-shaped cover plate and the end cover are stably positioned, ensuring that there will be no displacement during the subsequent welding operation, thereby greatly improving the welding accuracy.

[0022] 3. The beneficial effects of the present invention are as follows: With the help of the gear synchronization component, the driving force of the motor can be synchronously transmitted to the four clamping components arranged in a rectangle. The four clamping components operate simultaneously to achieve effective synchronous clamping of the inner and outer sides of the U-shaped cover plate, firmly fixing the U-shaped cover plate, effectively avoiding large deformation of the U-shaped cover plate due to the influence of welding during the welding process, and ensuring the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present invention and do not limit the present invention. Among them:

[0024] Figure 1 Shows a three-dimensional schematic diagram of the overall structure of the present invention.

[0025] Figure 2 Shows Figure 1 A partial enlarged view of part A in

[0026] Figure 3 Shows a schematic diagram of the structural connection of the synchronous feeding part and the positioning part.

[0027] Figure 4 Shows a schematic diagram of the structural connection of the clamping part, the U-shaped cover plate and the end cover.

[0028] Figure 5 Shows a schematic diagram of the structural connection of the gear synchronization component and the clamping component.

[0029] Figure 6 Shows a schematic diagram of the structural connection of the clamping component.

[0030] Figure 7 Shows an exploded connection schematic diagram of the positioning part, the U-shaped cover plate and the end cover.

[0031] Figure 8 Shows a schematic diagram of the partial structural connection of the positioning part on the side close to the welding part.

[0032] Figure 9 Shows a schematic diagram of the structural connection of the end cover.

[0033] Reference numerals: 1, welding robot; 11, cylinder; 12, welding part; 13, U-shaped cover plate; 14, end cover; 2, synchronous feeding part; 21, adsorption component; 211, suction cup; 22, connecting rod bracket; 23, connecting rod; 24, support rod; 25, linkage rod; 26, guide plate; 3, clamping part; 31, protective housing; 32, gear synchronization component; 321, turntable bearing; 322, tooth ring; 323, driven gear; 324, transmission rod; 33, clamping component; 331, cam disc; 332, arc groove; 333, first slider; 334, clamping plate; 335, guiding block; 336, guide rod; 337, guiding bracket; 4, positioning part; 41, spring telescopic rod; 42, pressing plate; 43, positioning connecting rod; 44, second slider; 45, chute; 46, U-shaped positioning seat; 47, positioning plate; 48, positioning hole; 51, synchronous gear; 52, driving gear; 53, motor; 54, placement groove; 61, avoidance groove; 62, avoidance space. Detailed implementation manners

[0034] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below in conjunction with the detailed implementation manners and the accompanying drawings.

[0035] The terms used in the present invention are those general terms that are currently widely used in the art in consideration of the functions of the present invention. However, these terms may change according to the intentions of those of ordinary skill in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in this case, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but based on the meanings of the terms and the overall description of the present invention.

[0036] Referring to Figure 1 , this embodiment provides an automatic welding machine for the shell of a gas wall-mounted boiler, including a welding robot 1. A cylinder 11 is provided at the top of the welding robot 1. The output rod at the bottom of the cylinder 11 is connected with a welding part 12, which is used to drive the welding part 12 to lift and perform welding operations on the U-shaped cover plate 13 and the end cover 14.

[0037] In use, the welding end of the welding part 12 can be flexibly designed into a U-shaped, rectangular or trapezoidal structure according to different welding requirements. This diversified design can adapt to more complex welding scenarios and meet the welding requirements of various structures. The size of the welding end is designed to be larger than and completely cover the welding seam reserved by the U-shaped cover plate 13 and the end cover 14, ensuring that during the welding process, the welding seam can be welded in all directions without omission, thereby ensuring the welding quality and improving the reliability and stability of the welding.

[0038] In addition, the welding part 12 drives the welding end to move relatively according to a preset welding speed and path, so that the arc moves on the surface of the welded part, continuously melting the metal to form a weld seam. During the welding process, the wire feeding mechanism feeds the welding wire into the reserved welding seam at a set wire feeding speed to fill the weld seam and ensure the formation and strength of the weld seam. The shielding gas continuously sprays out from the nozzle at the welding end to form a shielding gas cover in the welding area, preventing harmful gases such as oxygen and nitrogen in the air from invading the molten pool and avoiding defects such as porosity and oxidation in the weld seam.

[0039] Refer to Figure 1 and Figure 3 , the synchronous feeding part 2 is located on the side wall of the welding robot 1, and an adsorption component 21 is provided at the lower output end. The synchronous feeding part 2 is coupled and connected to the welding part 12 and the adsorption component 21 through multiple connecting rods for the reciprocating motion of the adsorption component 21.

[0040] Refer to Figure 4 — Figure 6 , the clamping part 3 is fixed on the side wall of the welding robot 1 under the welding part 12. The clamping part 3 includes a protective housing 31 suspended on the side wall of the welding robot 1 through multiple mounting rods. A gear synchronization component 32 is provided inside the protective housing 31. The output end of the gear synchronization component 32 is connected to a number of adapted clamping components 33. The gear synchronization component 32 is used to synchronously transmit power to the number of clamping components 33.

[0041] Refer to Figure 3 、 Figure 7 and Figure 8 , the positioning part 4 is arranged in the redundant space reserved at the bottom of the welding part 12 and on the side of the clamping part 3 away from the welding robot 1 for positioning the U-shaped cover plate 13 and the end cover 14.

[0042] In use, after the welding part 12 completes the previous welding task and resets upward, at this time, the welding robot 1 cooperates with the synchronous feeding part 2 to convey the U-shaped cover plate 13 and the end cover 14 to be welded to the positioning part 4. With the help of the positioning part 4, the U-shaped cover plate 13 and the end cover 14 are positioned to ensure that they will not displace during welding and ensure the accuracy of the weld seam. When the welding operation is started, the clamping part 3 is driven to operate to firmly clamp the two sides inside the U-shaped cover plate 13, thereby preventing excessive deformation of each part of the U-shaped cover plate 13 due to force or heat during the welding process and improving the welding quality and accuracy.

[0043] Refer to Figure 1 、 Figure 3 and Figure 4, the synchronous loading unit 2 includes two link brackets 22 arranged on the side wall of the welding robot 1. The two link brackets 22 are arranged oppositely, and each rotatably connects two connecting rods 23. The four connecting rods 23 are each connected to the middle adsorption component 21 through a support rod 24. On both sides of the welding part 12, there is a linkage rod 25 respectively. One end of the two linkage rods 25 is rotatably connected to the outside of the welding part 12, and the other end is rotatably connected to the middle position of the connecting rod 23 on the side close to the welding part 12. A guide plate 26 is arranged below the side of the welding part 12.

[0044] Refer to Figure 3 , the adsorption component 21 includes a suction cup 211 arranged on the support rod 24.

[0045] During use, when the welding part 12 moves downward to perform the welding task, the suction cup 211 synchronously adsorbs the un-welded end cap 14 from the existing production line. After the welding part 12 completes the welding operation, it immediately moves upward for reset. The welding part 12 drives the connecting rod 23 to make a forward circular motion through the linkage rod 25, thereby driving the suction cup 211 to move forward, placing the previously adsorbed end cap 14 on the guide plate 26, and relying on the downward gravitational potential energy of the guide plate 26, transporting the end cap 14 to the lower positioning plate 47, thus completing automatic loading.

[0046] In addition, this repeated reciprocating motion can continuously transport the end cap 14 to the positioning plate 47, thereby simplifying the work process and improving the overall production efficiency.

[0047] Refer to Figure 3 and Figure 8 , the positioning unit 4 includes a spring telescopic rod 41 arranged in the redundant space of the welding part 12. A pressing plate 42 is arranged at the bottom of the spring telescopic rod 41. On both sides of the pressing plate 42, there are positioning connecting rods 43. At the end of the positioning connecting rod 43, there is a second slider 44. On the inner wall of the redundant space of the welding part 12, there are two oppositely arranged vertical sliding grooves 45 correspondingly. The second slider 44 is slidably connected inside the sliding groove 45.

[0048] Refer to Figure 4 、 Figure 7 and Figure 9 , the positioning unit 4 further includes a U-shaped positioning seat 46 arranged on the clamping side of the clamping plate 334. A positioning plate 47 is connected to the top of the U-shaped positioning seat 46. The inclination angles of the bottom of the positioning plate 47 and the guide plate 26 match each other and are fixedly connected. There is a positioning hole 48 preset on the positioning plate 47, and a matching positioning pin is also arranged at the bottom of the end cap 14. A positioning block is also arranged at the bottom of the U-shaped positioning seat 46.

[0049] In use, when the synchronous loading part 2 conveys the end cap 14 to be welded to the positioning plate 47, a sliding groove adapted to the outside of the positioning plate 47 is provided to guide the positioning pin at the bottom of the end cap 14 into the positioning hole 48 provided on the positioning plate 47, so that the end cap 14 can be initially positioned. At the same time, the welding part 12 moves downward, and the pressing plate 42 is directly above the end cap 14 and is lower than the welding part 12 in position. Therefore, when the cylinder 11 drives the welding part 12 to weld downward, the pressing plate 42 will first press on the end cap 14 and apply pressure to the end cap 14 by means of the spring telescopic rod 41, realizing the positioning and fixing of the end cap 14.

[0050] The outer dimension of the U-shaped positioning seat 46 is designed to be equal to or slightly smaller than the inner dimension of the U-shaped cover plate 13 to ensure that the two can be closely adapted. At the same time, a special positioning block is provided at the bottom of the U-shaped positioning seat 46, which can effectively prevent the U-shaped cover plate 13 from slipping downward. When the U-shaped cover plate 13 is placed on the U-shaped positioning seat 46, a good positioning effect can be achieved by virtue of the precise dimension matching and the limiting effect of the positioning block, providing a stable and reliable basis for the subsequent welding operation.

[0051] Refer to Figure 5 , the gear synchronization component 32 includes a turntable bearing 321 arranged inside the protective housing 31. A toothed ring 322 is rotatably connected to the turntable bearing 321. The outside of the toothed ring 322 meshes with four driven gears 323. Each driven gear 323 is installed on a corresponding transmission rod 324. The transmission rod 324 is rotatably connected inside the protective housing 31, and its end extends out of the protective housing 31 and is connected to the outside clamping component 33.

[0052] In use, the toothed ring 322 is rotatably connected to the turntable bearing 321. A driven gear 323 and a synchronization gear 51 are coaxially assembled on each transmission rod 324. The four driven gears 323 are arranged in a rectangular distribution. Correspondingly, the four pairs of clamping plates 334 corresponding to the four transmission rods 324 are also arranged in a rectangular shape. Therefore, this layout can more precisely clamp the outer frame of the U-shaped cover plate 13, thereby realizing the effect of clamping the inside and outside of the U-shaped cover plate 13 simultaneously.

[0053] Refer to Figure 4 — Figure 6 , the clamping component 33 includes a cam disc 331 arranged on the transmission rod 324. Two centrally symmetric arc grooves 332 are opened inside the cam disc 331. A first slider 333 is slidably connected inside the arc groove 332. One end of the first slider 333 close to the positioning part 4 is connected to a clamping plate 334. A guiding block 335 is provided at the end of the first slider 333 away from the clamping plate 334. The guiding block 335 is slidably connected to a matching guide rod 336. The guide rod 336 is fixed on a guiding bracket 337, and the guiding bracket 337 is fixed on the protective housing 31.

[0054] In use, power is synchronously and evenly transmitted to the four cam discs 331 through the toothed ring 322 and the driven gear 323. Further, the power can be synchronously distributed to the two oppositely arranged clamping plates 334 on each cam disc 331. During operation, the clamping plates 334 and the connected first sliders 333 slide in the two centrally symmetric arc grooves 332 preset on the cam discs 331. At the same time, the guiding blocks 335 and the guide rods 336 strictly limit the movement direction of the clamping plates 334, enabling them to only approach or move away from each other. With this design, the outer frames extending from both sides of the U-shaped cover plate 13 can be clamped simultaneously, achieving synchronous clamping of the inner and outer sides of the U-shaped cover plate 13.

[0055] Moreover, this clamping method also provides great convenience for the precise positioning of the U-shaped cover plate 13 and the end cover 14. In addition, the guiding bracket 337 plays a role in supporting and fixing the guide rod 336, and the protective housing 31 can protect the gear synchronization assembly 32.

[0056] Refer to Figure 2 and Figure 5 , a synchronous gear 51 is coaxially penetrated and connected to one end of the driven gear 323 away from the U-shaped cover plate 13. The synchronous gear 51 is meshed and connected with a driving gear 52, and the driving gear 52 is connected to the output end of the motor 53. Four matching placement grooves 54 are correspondingly opened on one side of the welding robot 1 close to the motor 53, and the motor 53 is installed in the corresponding placement groove 54.

[0057] Refer to Figure 4 , a notch is preset on the protective housing 31 near the driving gear 52 and the synchronous gear 51.

[0058] In use, the motor 53 drives the driving gear 52 to rotate, and the driving gear 52 drives the meshed synchronous gear 51 to rotate. In this way, the synchronous gear 51 can drive the corresponding cam disc 331 to rotate. Since the sizes of the four cam discs 331, the driven gear 323, and the transmission rods 324 are the same, only by driving one transmission rod 324 to rotate, the four transmission rods 324 can be driven to rotate synchronously, thus meeting the requirement of synchronous clamping of the inner and outer sides of the U-shaped cover plate 13.

[0059] In addition, in practical applications, the number of motors 53 can be flexibly adjusted from one to four according to specific requirements to meet diverse usage scenarios. The placement grooves 54 can be used to install the motors 53. To facilitate the meshing of the synchronous gear 51 and the driving gear 52, a part of the outer shell of the protective housing 31 is removed at the meshing connection of the two.

[0060] Refer to Figure 1 and Figure 7 , a relief groove 61 is provided on one side of the welding robot 1 close to the synchronous loading part 2, and a corresponding relief space 62 is opened on one side of the U-shaped positioning seat 46 close to the clamping plate 334.

[0061] In use, the avoidance groove 61 reserves space for the feeding movement of the synchronous feeding part 2, effectively preventing the synchronous feeding part 2 from colliding with the welding robot 1 during operation, while the avoidance space 62 ensures that the two clamping plates 334 can smoothly clamp the inner and outer sides of the U-shaped cover plate 13 at the same time.

[0062] Finally, it should be noted that the methods and devices described in detail above are only examples, and those skilled in the art can modify these examples in different ways as long as they do not depart from the scope of the present invention.

Claims

1. An automatic welding machine for the shell of a gas wall-mounted boiler, characterized in that: include, A welding robot, with a cylinder on the top of the welding robot, and an output rod at the bottom of the cylinder connected to a welding part, which is used to drive the welding part to rise and fall and perform welding operations on the U-shaped cover plate and the end cover; The synchronous feeding part is located on the side wall of the welding robot, and an adsorption component is provided at the lower output end. The synchronous feeding part is coupled and connected with the welding part and the adsorption component through a plurality of connecting rods for the reciprocating motion of the adsorption component. The clamping part is fixed on the side wall of the welding robot at the lower side of the welding part, and the clamping part includes a protective shell suspended and installed on the side wall of the welding robot through multiple mounting rods. A gear synchronization component is arranged inside the protective shell, and the output end of the gear synchronization component is connected to a plurality of adapted clamping components, and the gear synchronization component is used to synchronously transmit power to the plurality of clamping components; The positioning part is arranged in the redundant space reserved at the bottom of the welding part and on the side of the clamping part away from the welding robot, and is used for positioning the U-shaped cover plate and the end cover.

2. The automatic welding machine for the gas wall-mounted boiler shell according to claim 1 is characterized in that: The synchronous feeding part includes two connecting rod brackets arranged on the side wall of the welding robot, the two connecting rod brackets are arranged opposite to each other, and each is rotatably connected to two connecting rods, and the four connecting rods are each connected to the middle adsorption component through a support rod. A linkage rod is provided on each side of the welding part, and one end of the two linkage rods is rotatably connected to the outer side of the welding part, and the other end is rotatably connected to the middle position of the connecting rod close to one side of the welding part. A guide plate is provided at the lower side of the welding part.

3. The automatic welding machine for the shell of a gas wall-mounted boiler according to claim 1 or 2, characterized in that: The adsorption assembly comprises a suction cup arranged on the support rod.

4. The automatic welding machine for the gas wall-mounted boiler shell according to claim 1 is characterized in that: The gear synchronization assembly includes a turntable bearing arranged inside the protective shell, and a gear ring is rotatably connected to the turntable bearing. The outer side of the gear ring is meshed with four driven gears. Each of the driven gears is installed on a corresponding transmission rod. The transmission rod is rotatably connected to the inside of the protective shell, and its end extends out of the protective shell and is connected to the clamping assembly on the outside.

5. The automatic welding machine for the shell of a gas wall-mounted boiler according to claim 1 or 4, characterized in that: The clamping assembly includes a cam plate arranged on the transmission rod, the cam plate is provided with two centrally symmetrical arc grooves, a first slider is slidably connected inside the arc groove, the first slider is connected to a clamping plate at one end close to the positioning portion, a guide block is provided at one end of the first slider away from the clamping plate, the guide block is slidably connected to an adaptive guide rod, the guide rod is fixed on a guide bracket, and the guide bracket is fixed on a protective shell.

6. The automatic welding machine for the shell of a gas wall-mounted boiler according to claim 5, characterized in that: The driven gear is coaxially connected with a synchronous gear at one end away from the U-shaped cover plate, and the synchronous gear is meshingly connected with a driving gear. The driving gear is connected to the output end of the motor. Four matching placement grooves are correspondingly opened on the side of the welding robot close to the motor, and the motor is installed in the corresponding placement grooves.

7. The automatic welding machine for the shell of a gas wall-mounted boiler according to claim 6, characterized in that: The protection shell is preset with a notch near the driving gear and the synchronous gear.

8. The automatic welding machine for the shell of a gas wall-mounted boiler according to claim 1 is characterized in that: The positioning part includes a spring telescopic rod arranged in the redundant space of the welding part, a pressure plate is provided at the bottom of the spring telescopic rod, positioning connecting rods are provided on both sides of the pressure plate, a second slider is provided at the end of the positioning connecting rod, and two oppositely arranged vertical sliding grooves are correspondingly opened on the inner wall of the redundant space of the welding part, and the second slider is slidably connected inside the sliding groove.

9. The automatic welding machine for the shell of a gas wall-mounted boiler according to claim 5, characterized in that: The positioning part also includes a U-shaped positioning seat arranged on the clamping side of the splint, a positioning plate is connected to the top of the U-shaped positioning seat, the inclination angles of the positioning plate and the bottom of the guide plate are interconnected and fixedly connected, a positioning hole is also preset on the positioning plate, and an adaptive positioning pin is also provided at the bottom of the end cover, and a positioning block is also provided at the bottom of the U-shaped positioning seat.

10. The automatic welding machine for the shell of a gas wall-mounted boiler according to claim 5, characterized in that: The welding robot is provided with an avoidance groove on one side close to the synchronous feeding part, and the U-shaped positioning seat is provided with a corresponding avoidance space on one side close to the clamping plate.

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