A boiler assembly machining and welding apparatus

Abstract

The application belongs to the technical field of welding equipment, and discloses a boiler assembly processing and welding equipment, which comprises a welding mechanical arm assembly, the working end of the welding mechanical arm assembly is equipped with a welding gun execution end, one end of the welding mechanical arm assembly is provided with a welding table, the upper end of the welding table is equipped with a driving wheel frame assembly, the upper end of the welding gun execution end is fixedly connected with an electric guide rail on the side away from the driving wheel frame assembly, the output end of the electric guide rail is equipped with a cross stand, and the side end of the cross stand is rotatably connected with a cylinder end face clamp. Through the structural cooperation of the photoelectric alignment detection unit, the rectangular clamping block, the laser emitter and the laser receiver, the laser alignment detection mode of dynamic and static cooperation is adopted to realize automatic induction of the circumferential point and precise intermittent pre-point welding operation during the rotation of the boiler cylinder, the cylinder ring seam can be uniformly pre-fixed at multiple points, and the forming precision and structural stability of the cylinder welding are significantly improved.

Description

Technical Field

[0001] This invention belongs to the field of welding equipment technology, specifically a boiler component processing and welding equipment. Background Technology

[0002] Boiler component processing and welding equipment refers to a specialized complete set of equipment systems specifically used for welding and manufacturing pressure-bearing components and structural parts of boilers. Boiler components include core pressure-bearing parts such as boiler drum, headers, membrane water-cooled walls, serpentine tubes, and tube sheets. Their manufacturing process requires high-precision, high-efficiency automated welding processes and equipment to ensure welding quality and production efficiency.

[0003] For example, a biomass boiler component processing and welding equipment disclosed in CN120023465A includes a mobile device. The mobile device is used to move the parts to be welded closer to the welding position of the boiler. An adsorption plate for adsorbing the parts is rotatably installed on the mobile device. A first driving component is installed on one side of the adsorption plate to drive the adsorption plate to rotate and adjust the angle of the parts. The circular welding path formed by the laser welding gun execution end driven by the rotating disk can improve the smoothness and speed of welding. Furthermore, the continuous output of protective gas reduces the problem of a significant increase in heat input per unit area.

[0004] While the above-mentioned solutions can improve the smoothness and speed of welding, the current boiler shell circumferential weld equipment typically relies solely on the offline programming of the welding robot arm and roller frame for spot welding. This means that the welding torch is controlled to reach each spot welding position sequentially by preset rotation angles and trajectories. However, this single spot welding method is easily affected by multiple factors such as fixture manufacturing and installation errors, roller frame transmission slippage, and the ellipticity of the shell. This leads to a systematic deviation between the actual spot welding position and the theoretical preset position, resulting in uneven distribution of the pre-spot welding points in the circumferential direction of the shell, which in turn affects the forming accuracy and structural stability of the subsequent circumferential weld. Summary of the Invention

[0005] To address the problems mentioned in the background section, the present invention provides a boiler component processing and welding equipment.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a boiler component processing and welding equipment, comprising a welding robotic arm assembly, wherein the working end of the welding robotic arm assembly is equipped with a welding torch execution end, a welding table is provided at one end of the welding robotic arm assembly, a drive wheel frame assembly is assembled at the upper end of the welding table, an electric guide rail is fixedly connected to the side of the upper end of the welding torch execution end away from the drive wheel frame assembly, a cross rod is assembled at the output end of the electric guide rail, and a cylinder end face clamp is rotatably connected to the side end of the cross rod; and further comprising: a photoelectric alignment detection unit disposed outside the welding torch execution end and the cylinder end face clamp for weld alignment detection; The photoelectric alignment detection unit includes multiple rectangular blocks. One of the rectangular blocks is fixedly connected to the welding robot arm assembly and is located at the side of the welding torch execution end. The remaining rectangular blocks are fixedly connected to multiple cylinder end face clamps. The multiple rectangular blocks outside the cylinder end face clamps are arranged in a ring at equal intervals. A laser emitter is fixedly connected inside the rectangular block outside the welding robot arm assembly. A laser receiver is fixedly connected inside the rectangular block outside the cylinder end face clamps. An anti-splash light-transmitting lens for protecting the internal detection elements is fixedly connected to the open end of the rectangular block. A protruding ring plate is fixedly connected to the outside of the cylinder end face clamps. A follow-up dust removal device is provided outside the rectangular card block. The follow-up dust removal device includes two protruding side blocks. One of the protruding side blocks is installed at the end of the cross rod near the end face of the cylinder clamp, and the other protruding side block is installed at the side end of one of the rectangular card blocks. One end of the protruding side block is fixedly connected to a plurality of flexible bristles for sweeping and dust removal.

[0007] Preferably, the flexible bristles are made of high-temperature resistant flexible nylon material, and multiple flexible bristles are uniformly fixed in an array on the end face of the corresponding protruding side block, and the ends of the flexible bristles are in flexible contact with the surface of the anti-splash light-transmitting lens.

[0008] Preferably, an adjustable protective component is provided on the side of the protruding ring plate of the cylinder end face clamp near the welding gun execution end. The adjustable protective component includes a plurality of arc-shaped grooves arranged in a ring at equal intervals on the surface of the protruding ring plate. A physical arc-shaped protective plate is installed at the end of the arc-shaped groove near the welding gun execution end. An electrical hinge for controlling its opening and closing is hinged between the arc-shaped groove and the physical arc-shaped protective plate.

[0009] Preferably, the multiple rectangular blocks located on the outer side of the clamp on the end face of the cylinder are arranged in a ring with an equal division structure, the spacing between two adjacent rectangular blocks is equal, and the gap position corresponds to that between two adjacent physical arc-shaped protective plates.

[0010] Preferably, the anti-splash transparent lens is made of high-temperature resistant and anti-splash transparent engineering plastic material, and the anti-splash transparent lens and the opening end of the rectangular card block are sealed and fixedly connected.

[0011] Preferably, the electrical hinge is a rotatable hinge structure that can be flexibly switched between protective and working states according to the welding operation process.

[0012] Preferably, the protruding ring plate and the cylinder end face clamp are an integral ring structure, and the outer diameter of the protruding ring plate is larger than the outer diameter of the cylinder end face clamp, forming a protective structure of annular steps.

[0013] Preferably, the cross rod and the output end of the electric guide rail are rigidly slidably connected, and the electric guide rail drives the cross rod to move back and forth in a straight line, and the displacement trajectory is parallel and adapted to the working trajectory of the welding gun execution end.

[0014] Preferably, the physical arc-shaped protective plate can be flipped and opened from zero to ninety degrees relative to the arc-shaped groove via an electrical hinge.

[0015] Preferably, the cylinder end face clamp and the cross upright are rotatably connected by a rotary bearing, and the cylinder end face clamp can rotate circumferentially around the side end of the cross upright.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention, through the structural coordination of a photoelectric alignment detection unit, a rectangular card block, a laser emitter, and a laser receiver, adopts a dynamic and static laser alignment detection method to achieve automatic circumferential point sensing and precise triggering of intermittent pre-spot welding operations during the rotation of the boiler shell. This enables multi-point uniform pre-fixation of the circumferential seam of the shell, significantly improving the forming accuracy and structural stability of the shell welding.

[0017] This invention utilizes a structure that combines a follow-up dust removal device, protruding side blocks, and flexible bristles. By employing the relative movement of two sets of cleaning structures, it dynamically removes dust and impurities from the anti-spatter transparent lens at the laser detection end throughout the entire process. This ensures the continuous transparency and stability of the laser light path, avoiding detection failures and spot weld position deviations caused by welding spatter and dust impurities obstructing the light path. This effectively improves the reliability and continuity of automated welding operations.

[0018] This invention achieves physical limit control of the welding area by setting up adjustable protective components, electrical hinges, physical arc-shaped protective plates and arc-shaped grooves, and relying on the adjustable physical protective structure to match the laser detection points. It only allows welding at standard points that have passed laser calibration, eliminates the situation of mis-welding or empty welding at non-preset positions, and ensures that the circumferential spot welding points are evenly and regularly arranged. This solves the technical problems of large randomness of spot welding positions and poor consistency of points in traditional equipment. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0020] Figure 1 This is a schematic diagram of the overall structure of the welding robotic arm assembly of the present invention; Figure 2 This is a schematic diagram of the boiler component in the processing state of the welding robotic arm assembly of the present invention; Figure 3 This is a partially truncated and enlarged structural diagram of the photoelectric alignment detection unit of the present invention; Figure 4 For the present invention Figure 2 A partially truncated enlarged structural diagram of the central follow-up dust removal device; Figure 5 This is a schematic diagram of the protruding ring plate structure of the present invention; Figure 6 This is a schematic diagram of the adjustable protection component structure of the present invention.

[0021] In the diagram: 1. Welding robotic arm assembly; 2. Welding torch actuator; 3. Welding table; 4. Drive wheel frame assembly; 5. Electric guide rail; 6. Cylinder end face clamp; 7. Photoelectric alignment detection unit; 700. Rectangular clamping block; 701. Laser emitter; 702. Anti-splash transparent lens; 703. Protruding ring plate; 8. Follow-up dust removal device; 800. Protruding side block; 801. Flexible bristles; 9. Adjustable protective component; 900. Arc-shaped groove; 901. Physical arc-shaped protective plate; 902. Electrical hinge; 10. Cross upright. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0023] In the description of this invention, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention. When a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0024] like Figures 1 to 6As shown, the present invention provides a boiler component processing and welding equipment, including a welding robotic arm assembly 1, a welding torch execution end 2 mounted on the working end of the welding robotic arm assembly 1, a welding table 3 provided at one end of the welding robotic arm assembly 1, a drive wheel frame assembly 4 mounted on the upper end of the welding table 3, an electric guide rail 5 fixedly connected to the upper end of the welding torch execution end 2 away from the drive wheel frame assembly 4, a cross rod 10 mounted on the output end of the electric guide rail 5, and a cylinder end face clamp 6 rotatably connected to the side end of the cross rod 10. The equipment also includes a photoelectric alignment detection unit 7 disposed outside the welding torch execution end 2 and the cylinder end face clamp 6 for weld alignment detection.

[0025] The above scheme is adopted: the drive wheel frame assembly 4 adopts a self-adjusting welded roller frame. The drive wheel frame assembly 4 includes an active roller group and a driven roller group. The drive motor of the active roller group is a three-phase asynchronous AC geared motor. The self-adjusting welded roller frame uses the friction between the active roller and the outer wall of the boiler shell to drive the shell to rotate around its central axis.

[0026] like Figures 2 to 6 As shown, the photoelectric alignment detection unit 7 includes multiple rectangular clamps 700. One rectangular clamp 700 is fixedly connected to the welding robot arm assembly 1 and is located on the side of the welding torch execution end 2. The remaining rectangular clamps 700 are fixedly connected to multiple cylinder end face clamps 6. The multiple rectangular clamps 700 outside the cylinder end face clamps 6 are arranged in a ring at equal intervals. A laser emitter 701 is fixedly connected inside the rectangular clamp 700 outside the welding robot arm assembly 1. A laser receiver is fixedly connected inside the rectangular clamp 700 outside the cylinder end face clamps 6. An anti-splash transparent lens 702 for protecting the internal detection elements is fixedly connected to the open end of the rectangular clamp 700. A protruding ring plate 703 is fixedly connected to the outside of the cylinder end face clamps 6.

[0027] The above scheme is adopted: the laser emitter 701 fixedly connected to the rectangular block 700 located at the side end of the welding robot assembly 1 in the photoelectric alignment detection unit 7 has the function of continuously emitting a reference laser signal for position determination during the welding operation. The laser receivers fixedly connected to the multiple rectangular blocks 700 outside the cylinder end face clamp 6 are used to receive the laser signals emitted by the laser emitter 701. The laser receivers integrate photoelectric conversion circuits and signal shaping circuits, which can quickly convert the received optical signals into electrical signals and transmit them to the control system of the welding equipment.

[0028] like Figures 2 to 6As shown, a follow-up dust removal device 8 is provided outside the rectangular card block 700. The follow-up dust removal device 8 includes two protruding side blocks 800. One of the protruding side blocks 800 is installed at one end of the cross rod 10 near the end face of the cylinder clamp 6. The other protruding side block 800 is installed at the side end of one of the rectangular card blocks 700. One end of the protruding side block 800 is fixedly connected to a plurality of flexible bristles 801 for sweeping and dust removal. The flexible bristles 801 are made of high temperature resistant flexible nylon material. The multiple flexible bristles 801 are evenly fixed in an array on the end face of the corresponding protruding side block 800, and the ends of the flexible bristles 801 are in flexible contact with the surface of the anti-splash light-transmitting lens 702.

[0029] The above scheme is adopted: the flexible bristles 801 are made of PA66 nylon bristles, which are made of polyhexamethylene adipamide resin through melt spinning. A high-temperature resistant auxiliary modifier is added to the resin system, which significantly increases the heat distortion temperature of the bristles, so that they can be used for a long time in the high-temperature environment generated by boiler shell welding without softening or deformation.

[0030] like Figures 1 to 6 As shown, an adjustable protective component 9 is provided on the side of the protruding ring plate 703 of the cylinder end face clamp 6 near the welding torch execution end 2. The adjustable protective component 9 includes multiple arc-shaped grooves 900 arranged in a ring at equal intervals on the surface of the protruding ring plate 703. A physical arc-shaped protective plate 901 is installed at the end of the arc-shaped groove 900 near the welding torch execution end 2. An electrical hinge 902 for controlling its opening and closing is hinged between the arc-shaped groove 900 and the physical arc-shaped protective plate 901. Multiple rectangular clamping blocks 700 located on the outside of the cylinder end face clamp 6 are arranged in a ring with an equal division structure. The spacing between two adjacent rectangular clamping blocks 700 is equal and corresponds to the gap position of two adjacent physical arc-shaped protective plates 901. The anti-splash transparent lens 702 is made of high-temperature resistant and anti-splash transparent engineering plastic material, and the anti-splash transparent lens 702 and the rectangular clamping blocks 700 are... The open end is a sealed and fixed connection. The electric hinge 902 is a limitable rotating hinge structure, which is used to flexibly switch between the protective state and the working state according to the welding operation process. The protruding ring plate 703 and the cylinder end face clamp 6 are an integral ring structure. The outer diameter of the ring plate 703 is larger than the outer diameter of the cylinder end face clamp 6, forming a ring step protective structure. The cross rod 10 and the output end of the electric guide rail 5 are rigidly sliding connected. The electric guide rail 5 drives the cross rod 10 to move back and forth in a straight line, and the displacement trajectory is parallel and matched with the working trajectory of the welding gun execution end 2. The physical arc-shaped protective plate 901 can be flipped and opened from zero to ninety degrees relative to the arc-shaped groove 900 through the electric hinge 902. The cylinder end face clamp 6 and the cross rod 10 are connected by a rotary bearing. The cylinder end face clamp 6 can rotate around the side of the cross rod 10.

[0031] The above solution is adopted: This welding equipment also includes a central control system, which uses a PLC controller as the core control unit. The digital input terminals of the PLC controller are respectively connected to electrical signals from various electrical components.

[0032] Working principle and usage process of this invention: In actual use, the boiler shell to be processed is first placed stably on the drive wheel frame assembly 4 at the upper end of the welding table 3 to complete the workpiece positioning and limiting fixation, ensuring that the welding position of the workpiece corresponds precisely to the working position of the welding torch execution end 2. At the same time, the electric guide rail 5 at the upper end of the welding torch execution end 2 starts working. The output end of the electric guide rail 5 smoothly drives the cross rod 10 to extend in a straight line towards the end face clamp 6 of the boiler shell, so that the end face clamp 6 of the boiler shell is precisely engaged at the bottom edge of the boiler shell, completing the alignment and assembly of the welding auxiliary structure. The welding robotic arm is then started. 1. The welding robot arm assembly 1 moves the welding gun execution end 2 at the end to the preset welding position above the welding table 3. Then, the drive wheel frame assembly 4 starts to operate, driving the placed boiler shell to rotate at a constant speed. After the end face clamp 6 of the shell is fastened and fixed, it rotates synchronously with the boiler shell. Multiple rectangular clamps 700 distributed in a ring on the outer side of the end face clamp 6 of the shell rotate circumferentially together with the end face clamp 6 of the shell. Meanwhile, the rectangular clamps 700 fixed on the side of the welding robot arm assembly 1 remain stationary, forming a dynamic and static laser detection alignment structure. During the continuous rotation of the cylinder end face clamp 6, the laser receivers installed inside the rectangular clamps 700 on the outer side of the cylinder end face clamp 6 will sequentially cycle with the laser emitters 701 inside the rectangular clamps 700 on the side of the welding robot assembly 1 to complete the laser signal alignment and matching. Each time a set of laser receivers accurately receives the laser signal emitted by the laser emitter 701, the equipment control system immediately feeds back the signal to the welding robot assembly 1, controlling the welding gun execution end 2 to automatically complete a pre-spot welding action. Through continuous rotation alignment and signal triggering, the intermittent automatic spot welding operation of multiple preset points in the circumference of the boiler cylinder is completed in sequence, realizing multi-point pre-fixation of the cylinder circumferential seam and avoiding workpiece displacement and weld misalignment during subsequent continuous welding. Throughout the entire spot welding process of the equipment, the cylinder end face clamp 6 maintains continuous rotation, and the follow-up dust removal device 8 simultaneously performs routine cleaning operations. The protruding side block 800 fixed to one end of the crossbar 10 near the cylinder end face clamp 6, along with its flexible bristles 801, remains in a fixed position following the crossbar 10, continuously and reciprocally brushing the surface of the anti-splash light-transmitting lens 702 on the outer side of all the rectangular clamp blocks 700 that rotate past on the cylinder end face clamp 6. Simultaneously, another set of protruding side blocks 800 fixed to the side of the rectangular clamp blocks 700 on the outer side of the cylinder end face clamp 6... The flexible brush 801 rotates synchronously with the end face clamp 6 of the cylinder, continuously sweeping and cleaning the surface of the anti-spatter light-transmitting lens 702 on the outer side of the rectangular clamp 700 stationary at the side end of the welding robot assembly 1. The two sets of flexible brushes 801 work together to remove welding slag, metal dust and impurities attached to the surface of the two anti-spatter light-transmitting lenses 702 in real time, continuously keeping the laser light path between the laser emitter 701 and the laser receiver unobstructed, avoiding signal reception failure and spot welding deviation caused by impurities, and ensuring the stability of laser alignment detection and spot welding operations.

[0033] Before the start of the entire batch of spot welding operations and during the equipment standby phase after all spot welding operations are completed, the adjustable protective component 9 on the outer side of the protruding ring plate 703 continuously adjusts its protective action in accordance with the working conditions. Relying on the electrically controlled rotation function of the electric hinge 902, the adjustable protective component 9 drives the physical arc-shaped protective plate 901 to swing stably and adjust its angle within the arc-shaped groove 900 on the surface of the protruding ring plate 703. The annular working gap formed by the assembly and arrangement of multiple physical arc-shaped protective plates 901 always maintains a horizontally corresponding and matching state with the rectangular clamp 700 on the outer side of the cylinder end face clamp 6. To ensure structural alignment consistency, during spot welding at the welding torch execution end 2, the electrical hinge 902 controls the physical arc-shaped protective plate 901 to remain horizontally fixed, fully exposing the working gap of the corresponding spot welding area and providing an unobstructed working space for welding operations. During circumferential welding, the electrical hinge 902 controls the physical arc-shaped protective plate 901 to fold and expose the entire circumferential welding area, physically defining the effective welding area, preventing accidental welding at non-preset positions, ensuring uniform and regular spot welding points in the circumferential direction, and guaranteeing the correspondence and accuracy of each laser alignment and spot welding trigger.

[0034] After all the pre-set spot welding points around the boiler shell are processed, the equipment automatically switches the operation process, cancels the intermittent spot welding mode, and the drive wheel frame assembly 4 continues to drive the boiler shell and the end face clamp 6 to maintain a uniform rotation. The equipment enters the continuous circumferential welding operation stage. Then, the welding robot arm assembly 1 controls the welding gun execution end 2 to move at a uniform speed along the circumferential weld seam trajectory of the boiler shell. In conjunction with the circumferential rotation of the workpiece, the continuous welding operation of the entire circumferential weld seam is completed smoothly.

[0035] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0036] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A boiler component processing and welding equipment, comprising a welding robotic arm assembly (1), wherein the working end of the welding robotic arm assembly (1) is equipped with a welding torch execution end (2), a welding table (3) is provided at one end of the welding robotic arm assembly (1), a drive wheel frame assembly (4) is assembled at the upper end of the welding table (3), an electric guide rail (5) is fixedly connected to the side of the upper end of the welding torch execution end (2) away from the drive wheel frame assembly (4), a cross rod (10) is assembled at the output end of the electric guide rail (5), and a cylinder end face clamp (6) is rotatably connected to the side end of the cross rod (10), characterized in that: Also includes: A photoelectric alignment detection unit (7) is set outside the welding torch execution end (2) and the cylinder end face clamp (6) for weld alignment detection. The photoelectric alignment detection unit (7) includes multiple rectangular blocks (700), one of which is fixedly connected to the welding robot arm assembly (1) and located at the side of the welding torch execution end (2). The remaining rectangular blocks (700) are fixedly connected to multiple cylinder end face clamps (6), and the multiple rectangular blocks (700) outside the cylinder end face clamps (6) are arranged in a ring at equal intervals. A laser emitter (701) is fixedly connected inside the rectangular block (700) outside the welding robot arm assembly (1), and a laser receiver is fixedly connected inside the rectangular block (700) outside the cylinder end face clamps (6). A splash-proof light-transmitting lens (702) for protecting the internal detection elements is fixedly connected to the open end of the rectangular block (700), and a protruding ring plate (703) is fixedly connected to the outside of the cylinder end face clamps (6). A follow-up dust removal device (8) is provided outside the rectangular card block (700). The follow-up dust removal device (8) includes two protruding side blocks (800). One of the protruding side blocks (800) is installed at one end of the cross rod (10) near the end face of the cylinder clamp (6). The other protruding side block (800) is installed at the side end of one of the rectangular card blocks (700). One end of the protruding side block (800) is fixedly connected to a plurality of flexible bristles (801) for sweeping and dust removal.

2. The boiler component processing and welding equipment according to claim 1, characterized in that: The flexible bristles (801) are made of high-temperature resistant flexible nylon material. Multiple flexible bristles (801) are uniformly fixed in an array on the end face of the corresponding protruding side block (800), and the ends of the flexible bristles (801) are in flexible contact with the surface of the anti-splash light-transmitting lens (702).

3. The boiler component processing and welding equipment according to claim 1, characterized in that: An adjustable protective component (9) is provided on the side of the protruding ring plate (703) of the end face clamp (6) of the cylinder near the welding gun execution end (2). The adjustable protective component (9) includes a plurality of arc-shaped grooves (900) arranged in a ring shape and equidistantly on the surface of the protruding ring plate (703). A physical arc-shaped protective plate (901) is installed at one end of the arc-shaped groove (900) near the welding gun execution end (2). An electrical hinge (902) for controlling its opening and closing is hinged between the arc-shaped groove (900) and the physical arc-shaped protective plate (901).

4. The boiler component processing and welding equipment according to claim 3, characterized in that: Multiple rectangular blocks (700) located on the outer side of the end face clamp (6) of the cylinder are arranged in a ring with an equal division structure. The spacing between two adjacent rectangular blocks (700) is equal and corresponds to the gap position of two adjacent physical arc-shaped protective plates (901).

5. The boiler component processing and welding equipment according to claim 1, characterized in that: The anti-splash transparent lens (702) is made of high temperature resistant and anti-splash transparent engineering plastic material. The anti-splash transparent lens (702) and the opening end of the rectangular card block (700) are sealed and fixedly connected.

6. The boiler component processing and welding equipment according to claim 3, characterized in that: The electrical hinge (902) is a limitable rotatable hinge structure, used to flexibly switch between protective and working states according to the welding operation process.

7. The boiler component processing and welding equipment according to claim 1, characterized in that: The protruding ring plate (703) and the cylinder end face clamp (6) are an integral ring structure. The outer diameter of the protruding ring plate (703) is larger than the outer diameter of the cylinder end face clamp (6), forming a protective structure of annular steps.

8. The boiler component processing and welding equipment according to claim 1, characterized in that: The cross rod (10) and the output end of the electric guide rail (5) are rigidly slidably connected. The electric guide rail (5) drives the cross rod (10) to move back and forth in a straight line, and the displacement trajectory is parallel and adapted to the working trajectory of the welding gun execution end (2).

9. The boiler component processing and welding equipment according to claim 3, characterized in that: The physical arc-shaped protective plate (901) can be flipped and opened from zero to ninety degrees relative to the arc-shaped groove (900) through an electric hinge (902).

10. The boiler component processing and welding equipment according to claim 1, characterized in that: The cylinder end face clamp (6) and the cross upright (10) are connected by a rotary bearing, and the cylinder end face clamp (6) can rotate around the side of the cross upright (10).

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