Novel laser welding robot device

Abstract

The utility model relates to the technical field of laser welding, and discloses a novel laser welding robot device which comprises a supporting table, the upper surface of the supporting table is rotationally connected with a rotating seat, a mechanical arm is installed on the upper surface of the rotating seat, a welding head is installed at one end of the mechanical arm, and a collecting assembly is installed on one side of the supporting table. The collecting assembly comprises a support, the support is arranged on one side of the supporting table, a collecting box is fixedly connected to the inner wall of the support, a plurality of collecting pipes are fixedly connected to one side of the outer wall of the collecting box, suction nozzles are fixedly connected to one ends of the collecting pipes, and a fan is fixedly connected to one side of the outer wall of the support. According to the automatic welding device, the mechanical arm is driven to rotate through the rotating seat, the position of the welding head is adjusted, and a welding piece is welded; the fan sucks harmful gas generated by welding into the collecting pipe through the suction nozzle, and the harmful gas is discharged after being filtered by the filter plate in the collecting box; after long-time use, the collecting box is pulled out to replace the filter plate, the filter plate is kept clean, and the practicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser welding technical field especially relates to novel laser welding robot device. BACKGROUND

[0002] Laser welding is a high-efficiency precision welding method with high-energy-density laser beam as heat source, and the output of pulse laser is controlled high-frequency pulse laser, which is conducted through optical fiber and focused on the surface of object, so that the material is rapidly melted to form a molten pool, and the connection is realized after cooling and solidification. It has the advantages of energy concentration, high weld quality, non-contact welding and strong adaptability. The use of novel laser welding robot device can improve the welding quality stability by advanced system and high-precision control mechanism, improve the production efficiency by high speed and automation characteristics, enhance the flexibility by multi-degree-of-freedom mechanical arm, adapt to various production demands, improve the working environment and reduce the labor intensity. At the same time, the intelligentization and informatization management of production are realized through intelligent sensor and control system.

[0003] At present, the common process of laser welding operation is to place the welding parts in a specific position first, and then use the mechanical arm to control the welding head to implement welding. However, this method has serious defects, and a large amount of harmful gas will be generated during welding, which will diffuse to the working environment without any hindrance. Not only does it harm the health of workers, but long-term contact may cause respiratory diseases, poisoning and other conditions, and it also causes the air quality of the workplace to decline and destroys the overall working environment, so the novel laser welding robot device is proposed to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a heating device for preparing glass fireproof liquid, which aims at improving the problems in the prior art that a large amount of harmful gas will be generated when the mechanical arm controls the welding head, which endangers the health of personnel and reduces the air quality.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a novel laser welding robot device, comprising a support table, a rotating seat is rotatably connected to the upper surface of the support table, a mechanical arm is installed on the upper surface of the rotating seat, a welding head is installed at one end of the mechanical arm, and a collecting assembly is installed on one side of the support table.

[0006] The collecting assembly comprises a support, the support is arranged on one side of the support table, a collecting box is fixedly connected to the inner wall of the support, a plurality of collecting pipes are fixedly connected to one side of the outer wall of the collecting box, a suction nozzle is fixedly connected to one end of the collecting pipe, a fan is fixedly connected to one side of the outer wall of the support, the input end of the fan is fixedly connected to one side of the outer wall of the collecting box, and a filtering assembly is installed in the collecting box.

[0007] Optionally, the filter assembly comprises a collection box, the outer wall of the collection box is slidably connected to the inside of the collection box, a through hole is formed through the inside of the collection box, the inner wall of the collection box is fixedly connected with a mounting plate, the upper surface of the mounting plate is fixedly connected with a positioning column, and the outer wall of the positioning column is slidably connected with a filter plate.

[0008] Optionally, the upper surface of the support is rotatably connected with a rotating roller one, the opposite side of the rotating roller one is rotatably connected with a rotating roller two, the upper surface of the support is fixedly connected with a motor, the output end of the motor is fixedly connected with one end of the rotating roller one, the rotating roller one and the rotating roller two are drivingly connected with a transmission belt, and the upper surface of the support is provided with a positioning assembly.

[0009] Optionally, the positioning assembly comprises an electric sliding rail, the lower surface of the electric sliding rail is fixedly connected to the upper surface of the support, the outer wall of the electric sliding rail is slidably connected with a sliding block, the upper surface of the sliding block is provided with a rotating plate one, the outer wall of the rotating plate one is rotatably connected with a rotating wheel one, the inside of the rotating plate one is fixedly connected with a connecting rod, the sliding block and the connecting rod are connected through a hydraulic rod, and one side of the rotating plate one is provided with an auxiliary assembly.

[0010] Optionally, the auxiliary assembly comprises a rotating plate two, the outer wall of the rotating plate two is rotatably connected to the outer wall of one side of the rotating plate one, the outer wall of one side of the rotating plate two is rotatably connected with a rotating wheel two, and the rotating plate two and the connecting rod are provided with a spring.

[0011] Optionally, the input end of the fan is arranged on the lower side of the collection box, and the fan is used for quickly guiding the harmful gas into the inside of the collection box.

[0012] Optionally, the other end of the collection pipe is fixedly connected to the upper side of the collection box, and the collection pipe is used for guiding the harmful gas.

[0013] Optionally, the rotating roller one and the rotating roller two are arranged on one side of the rotating wheel two, and the rotating roller one and the rotating roller two are used for driving the welding part.

[0014] The above one or more technical solutions in the heating device for preparing glass fireproof liquid provided by the embodiment of the utility model have at least one of the following technical effects:

[0015] 1、in the utility model, the mechanical arm is driven to rotate through the rotary seat, and then the position of the welding head is adjusted through the mechanical arm, so that the welding work of the welding part is realized, harmful gas is transmitted into the collection pipe through the suction nozzle at the same time through the fan, and the harmful gas is filtered through the filter plate in the collection box and then discharged, after a long time of use, the filter plate is replaced by pulling out the collection box, so that the effect of keeping the filter plate new is realized, and the practicability of the device is improved.

[0016] 2. The utility model discloses, through the welding piece of two sections needing welding is placed on rotating roller one and rotating roller two, at this time, through hydraulic rod pushes the connecting rod to make the rotating wheel one and touch on the welding piece, simultaneously through the cooperation of rotating plate two and rotating wheel two, and then realize the effect of the auxiliary placement of the welding piece falls off and deviates, and simultaneously through the motor drives the transmission belt on one side of rotating roller one to rotate, thereby realizing the effect that the welding piece is driven to rotate, thereby realizing the effect that the high -efficient welding is convenient, and then improve the practicality of device. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will be to the embodiment or the description of prior art needed to use the drawing briefly introduced, obviously, the following description in the drawing only some embodiments of the utility model, for the ordinary skilled person in the art comes, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0018] Figure 1 The three-dimensional structure schematic diagram of the novel laser welding robot device of the utility model is shown in the figure.

[0019] Figure 2 The filter plate part structure schematic diagram of the novel laser welding robot device of the utility model is shown in the figure.

[0020] Figure 3 The collection box part structure schematic diagram of the novel laser welding robot device of the utility model is shown in the figure.

[0021] Figure 4 The Figure 3 Enlarged view of A in the figure.

[0022] In the figure, various reference signs are:

[0023] 1, support platform, 2, rotary seat, 3, mechanical arm, 4, welding head, 5, support, 6, collection box, 7, collection pipe, 8, suction nozzle, 9, collection box, 10, through -hole, 11, mounting plate, 12, positioning column, 13, filter plate, 14, fan, 15, rotating roller one, 16, rotating roller two, 17, motor, 18, transmission belt, 19, electric sliding rail, 20, sliding block, 21, rotating plate one, 22, rotating wheel one, 23, hydraulic rod, 24, connecting rod, 25, rotating plate two, 26, rotating wheel two, 27, spring. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary, and are intended to explain the embodiments of the present application, and cannot be understood as a limitation of the present application.

[0025] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0026] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0027] In the embodiments of the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0028] Referring to Figures 1-4 , the present application provides an embodiment: a novel laser welding robot device, comprising a support table 1, a rotating seat 2 is rotatably connected to the upper surface of the support table 1, a mechanical arm 3 is installed on the upper surface of the rotating seat 2, a welding head 4 is installed at one end of the mechanical arm 3, and a collecting assembly is installed on one side of the support table 1.

[0029] The collecting assembly comprises a support 5 arranged on one side of the supporting table 1, an inner wall of the support 5 is fixedly connected with a collecting box 6, a plurality of collecting pipes 7 are fixedly connected on one side of an outer wall of the collecting box 6, one end of each collecting pipe 7 is fixedly connected with a suction nozzle 8, one side of an outer wall of the support 5 is fixedly connected with a fan 14, an input end of the fan 14 is fixedly connected on one side of an outer wall of the collecting box 6, and a filtering assembly is arranged in the collecting box 6; the filtering assembly comprises a collecting box 9, an outer wall of the collecting box 9 is slidingly connected in the collecting box 6, a through hole 10 is formed through the collecting box 9, an inner wall of the collecting box 9 is fixedly connected with a mounting plate 11, an upper surface of the mounting plate 11 is fixedly connected with a positioning column 12, and an outer wall of the positioning column 12 is slidingly connected with a filtering plate 13.

[0030] Specifically, the support table 1 is used to support the entire welding device and provide a stable foundation. The upper surface of the support table 1 is rotatably connected with a rotating seat 2. The rotating seat 2 allows the mechanical arm 3 to rotate within the working area, providing a wide range of operation and flexibility. The upper surface of the rotating seat 2 is installed with the mechanical arm 3. The mechanical arm 3 can be accurately positioned and welded under the support of the rotating seat 2, ensuring that the welding head 4 can efficiently complete the welding task. One end of the mechanical arm 3 is installed with the welding head 4. The welding head 4 is used for actual laser welding work. The welding parameters are adjusted according to the requirements of the workpiece to achieve high-quality welding effect. One side of the support table 1 is installed with a collection assembly. The collection assembly is used to collect smoke, waste gas and other substances that may be generated during the laser welding process, ensuring the cleanliness and safety of the working environment. The collection assembly includes a bracket 5, which is arranged on one side of the support table 1. The bracket 5 is used to fix the collection box 6 and other auxiliary equipment and provide support. The inner wall of the bracket 5 is fixedly connected with the collection box 6. The collection box 6 is used to collect waste gas and debris generated during the welding process, keeping the air in the working area flowing and clean. The outer wall of the collection box 6 is fixedly connected with a plurality of collection pipes 7. The collection pipes 7 are used to connect the collection box 6 and the suction nozzle 8, ensuring that the waste gas can quickly flow into the collection box 6 through the pipeline for treatment. One end of the collection pipe 7 is fixedly connected with the suction nozzle 8. The suction nozzle 8 can directly suck the smoke and waste gas generated during the welding process into the collection pipe 7 through high-efficiency suction, avoiding the diffusion of waste gas and protecting the health of the operator. The outer wall of the bracket 5 is fixedly connected with a fan 14. The fan 14 is used to provide strong suction to promote the removal of waste gas and smoke. The input end of the fan 14 is fixedly connected to the outer wall of the collection box 6, ensuring that the waste gas in the collection box 6 can be sucked into the fan 14 in time and discharged or further treated through an appropriate channel. The collection box 6 is internally installed with a filter assembly. The filter assembly is used to filter harmful substances in the collected waste gas, ensuring that the discharged air meets environmental protection standards. The filter assembly includes a collection box 9, which is slidably connected to the inner wall of the collection box 6. The sliding connection structure of the collection box 9 allows it to move and adjust within the collection box 6 as needed, facilitating cleaning and maintenance. The collection box 9 is internally penetrated with a through hole 10, which allows waste gas and smoke to pass through the collection box 9 into the filter system for treatment. The inner wall of the collection box 9 is fixedly connected with a mounting plate 11, which is used to fix other components of the filter assembly, ensuring the stability of the filter system. The upper surface of the mounting plate 11 is fixedly connected with a positioning column 12, which is used to ensure the accurate position of the filter plate 13, avoiding displacement of the filter plate 13 during the working process. The outer wall of the positioning column 12 is slidably connected with the filter plate 13. The filter plate 13 is used to effectively filter harmful substances in the waste gas, ensuring that the discharged gas meets environmental protection requirements.

[0031] Referring to Figures 1-4The upper surface of the support 5 is rotatably connected with a rotating roller one 15, the rotating roller one 15 is rotatably connected with a rotating roller two 16 on the opposite side, the upper surface of the support 5 is fixedly connected with a motor 17 on one side, the output end of the motor 17 is fixedly connected with one end of the rotating roller one 15, the rotating roller one 15 is drivingly connected with the rotating roller two 16 through a transmission belt 18, and the upper surface of the support 5 is provided with a positioning assembly; the positioning assembly comprises an electric sliding rail 19, the lower surface of the electric sliding rail 19 is fixedly connected with the upper surface of the support 5, the outer wall of the electric sliding rail 19 is slidingly connected with a sliding block 20, the upper surface of the sliding block 20 is provided with a rotating plate one 21, one side of the outer wall of the rotating plate one 21 is rotatably connected with a rotating wheel one 22, the inside of the rotating plate one 21 is fixedly connected with a connecting rod 24, the sliding block 20 and the connecting rod 24 are connected through a hydraulic rod 23, and one side of the rotating plate one 21 is provided with an auxiliary assembly; the auxiliary assembly comprises a rotating plate two 25, one side of the outer wall of the rotating plate two 25 is rotatably connected with the outer wall of the rotating plate one 21 on one side, the outer wall of the rotating plate two 25 is rotatably connected with a rotating wheel two 26 on one side, and the rotating plate two 25 and the connecting rod 24 are provided with a spring 27; the input end of the fan 14 is arranged on the lower side of the collecting box 9, and the fan 14 is used for quickly guiding the harmful gas into the collecting box 6; the other end of the collecting pipe 7 is fixedly connected with the upper side of the collecting box 9, and the collecting pipe 7 is used for guiding the harmful gas; the rotating roller one 15 and the rotating roller two 16 are arranged on one side of the rotating wheel two 26, and the rotating roller one 15 and the rotating roller two 16 are used for driving the welding part.

[0032] Specific, the upper surface of the support 5 is rotatably connected with a rotating roller one 15, the rotating roller one 15 is used to realize the stable transmission of the material in the welding process, support the welding parts and make it can move appropriately in the working process, the rotating roller one 15 is rotatably connected with a rotating roller two 16 on one side, the rotating roller two 16 works with the rotating roller one 15, ensures that the welding parts can be smoothly transmitted and adjusted in position in the welding process, avoids the unstable material leading to the decline of welding quality, the upper surface of the support 5 is fixedly connected with a motor 17 on one side, the motor 17 provides power to drive the rotating roller one 15, the output end of the motor 17 is fixedly connected with one end of the rotating roller one 15, so that the rotating roller one 15 can rotate automatically, thereby driving the transmission and material conveying of the whole welding system, the transmission belt 18 is drivingly connected between the rotating roller one 15 and the rotating roller two 16, the transmission belt 18 transmits the power of the motor 17, so that the two rotating rollers can operate synchronously, thereby improving the stability and reliability of the transmission system, a positioning assembly is installed on the upper surface of the support 5, the positioning assembly is used to accurately control the position of the welding parts, ensures the position accuracy in the welding process, the positioning assembly comprises an electric sliding rail 19, the lower surface of the electric sliding rail 19 is fixedly connected to the upper surface of the support 5, the electric sliding rail 19 provides a smooth sliding track, ensures the stable movement of the sliding block 20, the electric sliding rail 19 is slidably connected with a sliding block 20, the upper surface of the sliding block 20 is provided with a rotating plate one 21, the rotating plate one 21 is used to connect other components, ensures the correct positioning of the welding parts, a rotating wheel one 22 is rotatably connected to one side of the outer wall of the rotating plate one 21, the rotating wheel one 22 further adjusts the angle and position of the welding parts by rotating, a connecting rod 24 is fixedly connected inside the rotating plate one 21, the connecting rod 24 provides stable support and helps to transmit force to other components, the sliding block 20 and the connecting rod 24 are connected through a hydraulic rod 23, the hydraulic rod 23 is used to provide the necessary pressure, ensures the accurate cooperation between the sliding block 20 and the connecting rod 24, thereby improving the positioning accuracy, one side of the rotating plate one 21 is provided with an auxiliary assembly, the auxiliary assembly is used to assist the accurate positioning and operation of the rotating plate one 21, increases the flexibility of the system, the auxiliary assembly comprises a rotating plate two 25, the rotating plate two 25 is rotatably connected to one side of the outer wall of the rotating plate one 21, the rotating plate two 25 makes the whole system more flexible during adjustment, can adapt to different operation requirements, a rotating wheel two 26 is rotatably connected to one side of the outer wall of the rotating plate two 25, the rotating wheel two 26 further helps to adjust the angle of the welding parts, improves the accuracy of operation, a spring 27 is arranged between the rotating plate two 25 and the connecting rod 24, the spring 27 provides a certain elasticity, ensures that the rotating plate two 25 can maintain appropriate tension under the action of force, so as to provide stable operation in the working process, the input end of the fan 14 is arranged on the lower side of the collecting box 9, the fan 14 is used to quickly guide the harmful gas into the collecting box 6, ensures that the waste gas generated in the welding process will not pollute the working environment, the strong suction of the fan 14 helps the waste gas to quickly pass through the collecting pipe 7 and enter the collecting box 6 for treatment, the other end of the collecting pipe 7 is fixedly connected to the upper side of the collecting box 9,The collecting pipe 7 is used for guiding the harmful gas to be quickly introduced into the collecting box 6 from the welding area, effectively reducing the accumulation of harmful substances in the air, protecting the working environment, the rotating roller one 15 and the rotating roller two 16 are arranged on one side of the rotating wheel two 26, and the rotating roller one 15 and the rotating roller two 16 are used for driving the welding piece, under the driving of the motor 17, the welding piece can be stably conveyed to the position of the welding head 4, and the welding quality is improved.

[0033] Working principle: when the device needs to be used for welding the circular welding piece, first, the welding piece is placed above the rotating roller one 15 and the rotating roller two 16, then the hydraulic rod 23 is started, the connecting rod 24 is pushed by the hydraulic rod 23, and then the rotating wheel one 22 is abutted on the welding piece to realize the positioning effect, then the rotating wheel two 26 is abutted on the welding piece to make the spring 27 stretch and retract, so that the welding piece is further positioned, then the motor 17 is started, the transmission belt 18 on one side of the rotating roller one 15 is driven to rotate by the motor 17, so that the rotating roller two 16 is driven to rotate the welding piece, then the rotating seat 2 and the mechanical arm 3 are controlled to cooperate, so that the welding head 4 is driven to weld the welding position of the welding piece, a large amount of harmful gas is generated during welding, the harmful gas is transmitted to the inside of the collecting pipe 7 through the suction nozzle 8 by starting the fan 14, then the harmful gas is transmitted to the filter plate 13 through the collecting pipe 7, so that the filtering effect is realized, after long time use, the collecting box 9 is pulled out, so that the filter plate 13 is taken off from the outer wall of the positioning column 12 to realize the effect of replacing the filter plate 13.

[0034] The above only describes the preferred embodiments of the present application, and does not limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A new laser welding robot device comprising a support table (1), characterized by: The upper surface of the support table (1) is rotatably connected with a rotating seat (2), the upper surface of the rotating seat (2) is provided with a mechanical arm (3), one end of the mechanical arm (3) is provided with a welding head (4), and one side of the support table (1) is provided with a collecting assembly. The collecting assembly comprises a support (5), the support (5) is arranged on one side of the support table (1), the inner wall of the support (5) is fixedly connected with a collecting box (6), the outer wall of the collecting box (6) is fixedly connected with a plurality of collecting pipes (7), one end of the collecting pipe (7) is fixedly connected with a suction nozzle (8), one side of the outer wall of the support (5) is fixedly connected with a fan (14), the input end of the fan (14) is fixedly connected on one side of the outer wall of the collecting box (6), and the inside of the collecting box (6) is provided with a filtering assembly.

2. The novel laser welding robotic device according to claim 1, characterized in that: The filtering assembly comprises a collecting box (9), the outer wall of the collecting box (9) is slidably connected in the collecting box (6), a through hole (10) is formed in the inside of the collecting box (9), the inner wall of the collecting box (9) is fixedly connected with a mounting plate (11), the upper surface of the mounting plate (11) is fixedly connected with a positioning column (12), and the outer wall of the positioning column (12) is slidably connected with a filter plate (13).

3. The novel laser welding robotic device according to claim 1, characterized in that: The upper surface of the support (5) is rotatably connected with a rotating roller one (15), the opposite side of the rotating roller one (15) is rotatably connected with a rotating roller two (16), one side of the upper surface of the support (5) is fixedly connected with a motor (17), the output end of the motor (17) is fixedly connected with one end of the rotating roller one (15), and the rotating roller one (15) and the rotating roller two (16) are transmissionally connected with a transmission belt (18).

4. The novel laser welding robotic device according to claim 3, characterized by: The upper surface of the support (5) is rotatably connected with a rotating roller one (15), the opposite side of the rotating roller one (15) is rotatably connected with a rotating roller two (16), one side of the upper surface of the support (5) is fixedly connected with a motor (17), the output end of the motor (17) is fixedly connected with one end of the rotating roller one (15), and the rotating roller one (15) and the rotating roller two (16) are transmissionally connected with a transmission belt (18).

5. The novel laser welding robotic device according to claim 4, characterized by the fact that: The positioning assembly comprises an electric sliding rail (19), the lower surface of the electric sliding rail (19) is fixedly connected on the upper surface of the support (5), the outer wall of the electric sliding rail (19) is slidably connected with a sliding block (20), the upper surface of the sliding block (20) is provided with a rotating plate one (21), one side of the outer wall of the rotating plate one (21) is rotatably connected with a rotating wheel one (22), the inside of the rotating plate one (21) is fixedly connected with a connecting rod (24), the sliding block (20) and the connecting rod (24) are connected through a hydraulic rod (23), and one side of the rotating plate one (21) is provided with an auxiliary assembly.

6. The novel laser welding robotic device according to claim 1, characterized by: The auxiliary assembly comprises a rotating plate two (25), the outer wall of the rotating plate two (25) is rotatably connected on one side of the outer wall of the rotating plate one (21), one side of the outer wall of the rotating plate two (25) is rotatably connected with a rotating wheel two (26), and the rotating plate two (25) and the connecting rod (24) are provided with a spring (27).

7. The novel laser welding robotic device according to claim 1, characterized by: The input end of the fan (14) is arranged on the lower side of the collecting box (9), and the fan (14) is used for quickly guiding the harmful gas into the collecting box (6).

8. The novel laser welding robotic device according to claim 3, characterized by: The other end of the collecting pipe (7) is fixedly connected on the upper side of the collecting box (9), and the collecting pipe (7) is used for guiding the harmful gas. The rotating roller one (15) and the rotating roller two (16) are arranged on one side of the rotating wheel two (26), and the rotating roller one (15) and the rotating roller two (16) are used for transmission welding.

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