Welding device for furnace tube processing

Abstract

The utility model discloses a welding device for furnace tube processing, which relates to the technical field of furnace tube processing and comprises a base, supporting legs are fixedly mounted at four corners of the top of the base, a top frame is fixedly mounted at the tops of the supporting legs, and turnover mechanisms are fixedly mounted at two ends of the top frame. And a conveying mechanism is fixedly mounted in the middle of the top of the base. By the adoption of the structure, the clamping piece, the conveying mechanism and the welding mechanism work in a matched mode, the second motor drives the clamping frame to position a furnace tube, the transmission roller is attached to the furnace tube, the first motor drives the transmission roller to rotate to assist in welding, the first air cylinder is started to push the laser welding head during welding, and after machining is completed, the second air cylinder and the second motor are started; and the two V-shaped conveying belts are used for stably conveying the furnace tube, so that the furnace tube is convenient to take and place, the use convenience of the device is improved, and efficient furnace tube welding processing and convenient material circulation are realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of furnace tube processing, and particularly relates to a welding device for furnace tube processing. Background Technique

[0002] Furnace tube processing refers to a series of manufacturing and processing techniques for furnace tubes used in various industrial furnaces. Furnace tubes usually work in harsh environments such as high temperature, high pressure, and corrosion. Therefore, strict requirements are imposed on their processing. First, suitable materials need to be selected for furnace tube processing, such as heat-resistant and corrosion-resistant alloy steels. The processing process includes cutting, bending, welding, etc. Cutting needs to ensure accurate dimensions to lay a foundation for subsequent assembly. The bending process should ensure that the curvature of the furnace tube meets the design requirements to adapt to the installation needs of different furnace types. Welding requires high-quality welds to ensure the sealing and strength of the furnace tube during use.

[0003] Chinese Patent with the publication number "CN211072465U" discloses a welding device for furnace tubes, which includes a welding base plate. The left and right sides of the top of the welding base plate are respectively fixedly connected with a left support frame and a right support frame. A transmission rotating shaft penetrates and is rotatably connected through the middle position of the left support frame. A non-slip internal thread screw rod is rotatably connected through the middle position of the right support frame. A transmission threaded rod penetrates and is threadedly connected inside the non-slip internal thread screw rod. Pipe clamping mechanisms are fixedly connected to the left side of the transmission threaded rod and the right side of the transmission rotating shaft. An auxiliary support is fixedly connected to the middle position of the top of the welding base plate. A multi-degree-of-freedom welding device is fixedly connected to the top end of the auxiliary support. Preheaters are fixedly connected to both sides of the auxiliary support close to the lower part. The utility model relates to the technical field of furnace tubes. This welding device for furnace tubes achieves the purpose of improving the welding efficiency of furnace tubes and reducing the labor force of workers' welding processing.

[0004] During the actual application of the above device, although it can assist in the clamping and welding operation to a certain extent, there are obvious deficiencies. During use, the device needs to be manually adjusted for clamping. Especially when clamping pipe fittings, two bolts must be adjusted to achieve the clamping function. This operation method is not only cumbersome but also cannot achieve rapid and automated clamping positioning, making the overall operation extremely inconvenient. In addition, after the welding process is completed, due to the limitation of the device structure, it is not convenient to quickly take out the processed furnace tubes. For example, in the scenario of batch processing of furnace tubes, this inconvenience will greatly reduce the production efficiency and increase the operation time and labor cost. It can be seen that the device has certain defects in the overall processing process and cannot meet the requirements of efficient and convenient production. Therefore, there is an urgent need to improve and optimize it to enhance the efficiency and convenience of furnace tube processing. Content of the Utility Model

[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a welding device for furnace tube processing to solve the problems raised by the background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A welding device for furnace pipe processing, comprising a base, support legs are fixedly installed at the four corners of the top of the base, a top frame is fixedly installed on the top of the support legs, a turning mechanism is fixedly installed at both ends of the top frame, a conveying mechanism is fixedly installed in the middle of the top of the base, a driving mechanism is fixedly installed on the rear side of the turning mechanism, and a welding mechanism is fixedly installed in the middle of the right side of the top frame;

[0008] The welding mechanism includes a support arm, which is fixedly installed in the middle of the top rear side of the top frame, a first cylinder is fixedly installed on the top of the support arm, and a bottom output end of the first cylinder passes through the support arm and is fixedly connected to a laser welding head.

[0009] As a preferred technical solution, the flipping mechanism includes a guide rail, which is fixedly installed at both ends of the top frame. The rear side of the guide rail is connected to the driving mechanism. The internal rotation of the guide rail is connected to a screw rod, and the threads at both ends of the screw rod have opposite rotation directions. Both ends of the screw rod are threadedly connected to a slider, and a clamp is fixedly installed on the top of the slider.

[0010] As a preferred technical solution, the clamping member includes a fixing rod, which is fixedly installed on the top of the slider, and a clamping frame is fixedly installed on the top of the fixing rod, and two transmission rollers are rotatably connected on both sides of the clamping frame.

[0011] As a preferred technical solution, a mounting frame is fixedly installed on one side of the upper end of the clamping frame, a first motor is fixedly connected to the outer side of the mounting frame, an output end of the first motor passes through the mounting frame and a transmission pulley is fixedly installed, and an upper end of the clamping frame close to the first motor is also rotatably connected to a transmission pulley, the two transmission pulleys are connected by a transmission belt, and the inner side of the transmission pulley is fixedly connected to the end of the transmission roller.

[0012] As a preferred technical solution, the driving mechanism includes a side plate and a worm wheel, the worm wheel is rotatably connected to one end of the guide rail, the side plate is fixedly installed on both ends of one side of the top frame, the inner side of the side plate is rotatably connected to a worm, the worm and the worm wheel are transmission connected, the outer side of a side plate is fixedly connected to a second motor, the output end of the second motor passes through the side plate and is fixedly connected to one end of the worm, and the worm and one end of the lead screw are fixedly connected.

[0013] As a preferred technical solution, the conveying mechanism includes a second cylinder, which is fixedly installed in the middle of the top of the base. The output end of the second cylinder is fixedly installed with a conveying frame. Both ends of the inner side of the conveying frame are fixedly installed with base frames, and a conveyor belt is rotatably connected to the inner side of the base frames.

[0014] As a preferred technical solution, the shape formed by the two base frames is V-shaped, and the side shape of the clamping frame is also set to V-shaped.

[0015] In summary, the present utility model mainly has the following beneficial effects:

[0016] First, the present device is provided with a flipping mechanism. When in use, the furnace tube is placed inside the clamping frame, the second motor is started, the worm is driven to drive the worm wheel to rotate, and then the two lead screws are driven to rotate, so that the sliders in the guide rails displace relative to each other, driving the clamping frame to move. The V-shaped clamping frame can stably clamp furnace tubes with different diameters, realizing automatic welding positioning processing. There is no need to manually adjust the screw rod, improving the convenience and efficiency of the welding operation. During the welding process, the furnace tube can be quickly and accurately positioned, providing guarantee for high-quality welding processing.

[0017] Second, the device works in cooperation with the clamping member, the conveying mechanism and the welding mechanism. The second motor drives the clamping frame to position the furnace tube, the transmission roller fits against the furnace tube, the first motor drives the transmission roller to rotate to assist welding. When welding, the first cylinder is started to push the laser welding head. After the processing is completed, the second cylinder and the second motor are started to eject the furnace tube, and then the conveyor belt is started to move the furnace tube out. The two V-shaped conveyor belts stably convey the furnace tube, which is convenient for taking and placing, improving the convenience of the device use, and realizing efficient furnace tube welding processing and convenient material flow. Description of the Drawings

[0018] Figure 1 is the overall structural schematic diagram of the present utility model;

[0019] Figure 2 is the top view structural schematic diagram of the present utility model;

[0020] Figure 3 is the structural schematic diagram of the clamping member of the present utility model;

[0021] Figure 4 is the structural schematic diagram of the conveying mechanism of the present utility model.

[0022] Reference numerals: 1, base; 2, drive mechanism; 21, side plate; 22, worm gear; 23, worm; 24, second motor; 3, flipping mechanism; 31, guide rail; 32, lead screw; 33, slider; 34, clamping member; 341, fixed rod; 342, clamping frame; 343, driving roller; 344, mounting frame; 345, first motor; 346, belt pulley; 4, top frame; 5, support leg; 6, conveying mechanism; 61, second cylinder; 62, conveying frame; 63, base frame; 64, conveyor belt; 7, welding mechanism; 71, support arm; 72, first cylinder; 73, laser welding head. Detailed implementation mode

[0023] Embodiment

[0024] Reference Figures 1 to 4 , a welding device for furnace tube processing in this embodiment, includes a base 1. Support legs 5 are fixedly installed at the four corners of the top of the base 1. A top frame 4 is fixedly installed at the top of the support legs 5. Flipping mechanisms 3 are fixedly installed at both ends of the top frame 4. A conveying mechanism 6 is fixedly installed in the middle of the top of the base 1. A drive mechanism 2 is fixedly installed at the rear of the flipping mechanism 3. A welding mechanism 7 is fixedly installed in the middle of the right side of the top frame 4;

[0025] The welding mechanism 7 includes a support arm 71. The support arm 71 is fixedly installed at the middle of the rear side of the top of the top frame 4. A first cylinder 72 is fixedly installed at the top of the support arm 71. The bottom output end of the first cylinder 72 penetrates through the support arm 71 and is fixedly connected to a laser welding head 73. The support legs 5 and the top frame 4 on the top of the base 1 provide stable support for the whole device. The flipping mechanism 3 can flexibly adjust the furnace tube, facilitating the welding operation. The conveying mechanism 6 can realize the efficient conveying of the furnace tube, improving the processing efficiency. The support arm 71 in the welding mechanism 7 provides a stable installation position for the first cylinder 72 and the laser welding head 73. The first cylinder 72 can accurately control the height of the laser welding head 73 to ensure that it accurately contacts the inner gap of the furnace tube for welding. The laser welding head 73 can provide high-quality welding effects, with fast welding speed, high precision, and small heat-affected zone, which is beneficial to improving the welding quality and overall performance of the furnace tube. The various parts of the whole device work together to provide a reliable solution for furnace tube processing.

[0026] Reference Figures 1 - 3, the flipping mechanism 3 includes guide rails 31 which are fixedly installed at both ends of the top frame 4. The rear side of the guide rails 31 is connected to the driving mechanism 2. A lead screw 32 is rotatably connected inside the guide rails 31. The thread directions at both ends of the lead screw 32 are opposite. Both ends of the lead screw 32 are threadedly connected with sliders 33. A clamping member 34 is fixedly installed on the top of the sliders 33. The guide rails 31 of this device are fixed at both ends of the top frame 4, providing a stable running track for the lead screw 32 and the sliders 33. The design with opposite thread directions at both ends of the lead screw 32 enables the synchronous driving of the two sliders 33 to reciprocate in the guide rails 31 under the action of the driving mechanism 2, thereby driving the clamping members 34 on the tops of the sliders 33 to displace relative to each other. This design can flexibly adjust the position of the clamping member 34 to adapt to furnace tubes of different sizes, achieving stable clamping of the furnace tubes. During the welding process, it can ensure the accurate position of the furnace tubes, improving the precision and quality of welding. At the same time, the flipping mechanism 3 is easy to operate, which can improve the efficiency and convenience of furnace tube processing.

[0027] Reference Figures 1 - 3 , the clamping member 34 includes a fixed rod 341 which is fixedly installed on the top of the slider 33. A clamping frame 342 is fixedly installed on the top of the fixed rod 341. Two transmission rollers 343 are rotatably connected to both sides inside the clamping frame 342. An installation frame 344 is fixedly installed on one side of the upper end of the clamping frame 342. A first motor 345 is fixedly connected to the outside of the installation frame 344. The output end of the first motor 345 penetrates through the installation frame 344 and is fixedly installed with a transmission pulley 346. A transmission pulley 346 is also rotatably connected to the upper end of the clamping frame 342 close to the first motor 345. The two transmission pulleys 346 are connected by a transmission belt. The inner side of the transmission pulley 346 is fixedly connected to the end of the transmission roller 343. The fixed rod 341 firmly installs the clamping frame 342 on the top of the slider 33, ensuring the stability of the clamping structure during the processing. The two transmission rollers 343 inside the clamping frame 342 can rotate and make good contact with the furnace tube, assisting the rotation of the furnace tube during the processing to facilitate all-round welding. The first motor 345 on the installation frame 344 provides power for the transmission. Through the cooperation of the transmission pulley 346 and the transmission belt, the power can be accurately transmitted to the transmission roller 343, ensuring the efficiency and stability of the transmission. This design enables the clamping member 34 to not only clamp the furnace tube but also flexibly adjust the angle of the furnace tube as needed, improving the quality and efficiency of welding and adapting to the processing requirements of furnace tubes of different specifications.

[0028] Reference Figures 1 - 2, the driving mechanism 2 includes side plates 21 and a worm gear 22. The worm gear 22 is rotatably connected to one end of the guide rail 31. The side plates 21 are fixedly installed at both ends on one side of the top frame 4. A worm 23 is rotatably connected to the inner side of the side plates 21. The worm 23 is in transmission connection with the worm gear 22. The outer side of one side plate 21 is fixedly connected to a second motor 24. The output end of the second motor 24 penetrates through the side plate 21 and is fixedly connected to one end of the worm 23. The worm 23 is fixedly connected to one end of the lead screw 32. The side plates 21 provide a stable installation position for the worm 23, ensuring that the worm 23 remains stable during rotation. The worm gear 22 is in transmission connection with the worm 23. This transmission method has a relatively large transmission ratio and can efficiently transmit the power of the second motor 24 to the lead screw 32. The second motor 24 provides a power source for the entire driving system, and its output end is fixedly connected to the worm 23, ensuring the directness and stability of power transmission. When the second motor 24 is started, it drives the worm 23 to drive the worm gear 22 to rotate, and then synchronously drives the two worms 23 to drive the lead screw 32 to rotate. The design of the opposite thread directions at both ends of the lead screw 32 enables the sliders 33 to accurately displace relative to each other within the guide rail 31, thereby driving the clamping member 34 to stably clamp the furnace tube. This driving mechanism 2 can achieve automated clamping operations, improving the efficiency and accuracy of furnace tube processing.

[0029] Reference Figure 4 , the conveying mechanism 6 includes a second cylinder 61. The second cylinder 61 is fixedly installed in the middle of the top of the base 1. The output end of the second cylinder 61 is fixedly installed with a conveying frame 62. Both ends of the inner side of the conveying frame 62 are fixedly installed with base frames 63. A conveyor belt 64 is rotatably connected to the inner side of the base frames 63. The shape formed by the two base frames 63 is V-shaped, and the side shape of the clamping frame 342 is also set as V-shaped. The second cylinder 61 in the conveying mechanism 6 provides power for the lifting of the conveying frame 62 and can accurately control the height position of the conveying frame 62. The base frames 63 at both ends of the inner side of the conveying frame 62 provide stable support for the conveyor belt 64. The conveyor belt 64 on the inner side of the base frames 63 can achieve efficient conveying of the furnace tube. The design of the two base frames 63 being V-shaped and the side of the clamping frame 342 also being V-shaped can better adapt to the shape of the furnace tube, ensuring the stability of the furnace tube during conveying and clamping, facilitating centering positioning or conveying of circular furnace tubes. This design facilitates the picking and placing of the furnace tube. After the welding process is completed, the furnace tube can be quickly removed from the equipment, improving the usability and working efficiency of the overall device.

[0030] Principle of use and advantages: By carefully setting the flipping mechanism 3, the device exhibits excellent performance during actual use. Specifically, the furnace tube can be placed between the inner sides of the clamping frame 342. At this time, start the second motor 24 to run. The second motor 24 drives the worm 23 to drive the worm wheel 22 to rotate, and then can synchronously drive the two worms 23 to drive the two lead screws 32 to rotate. After the two lead screws 32 rotate, the sliders 33 inside the guide rail 31 can be driven to displace and slide relative to each other. Through the relative displacement and sliding of the sliders 33, the clamping frames 342 on the tops of the sliders 33 can be assisted to displace relative to each other. The V-shaped clamping frame 342 can stably clamp and adapt to furnace tubes of different diameters. During the overall welding process, automatic welding positioning can be carried out without manually twisting the screw for adjustment. Such a design greatly improves the operation convenience during the overall welding process of the device and significantly enhances the welding efficiency.

[0031] By setting the clamping member 34 of the flipping mechanism 3, the conveying mechanism 6 and the welding mechanism 7 to cooperate with each other, the device exerts powerful functions during application. The second motor 24 can be used to drive the clamping frames 342 to displace relative to each other to clamp and position the furnace tube. During this period, the inner side of the transmission roller 343 fits the outer surface of the furnace tube. By starting the first motor 345 to run, the first motor 345 can drive the belt pulley 346 to rotate. The belt pulley 346 can drive another belt to rotate through synchronous transmission of the belt. When both belt pulleys 346 rotate, the two transmission rollers 343 can be driven to rotate. The inner side of the transmission roller 343 is in contact connection with the furnace tube. As the transmission roller 343 rotates, the furnace tube during welding can be assisted to rotate. At this time, start the first cylinder 72 to push the laser welding head 73 downward to contact the inner gap of the furnace tube. By starting the laser welding head 73 to run, the furnace tube can be assisted to be welded. After the welding is completed, only start the second cylinder 61 to push the conveying frame 62 upward, and then start the second motor 24 to drive the two clamping frames 342 to separate. At this time, the furnace tube can be ejected. By starting the conveyor belt 64 to run, the furnace tube can be removed from the inside of the device. The two conveyor belts 64 are arranged in a V shape, which can stably convey the furnace tube and facilitate the loading and unloading of the furnace tube, and can greatly improve the convenience of the overall use of the device.

Claims

1. A welding device for furnace tube processing, comprising a base (1), characterized in that: Support legs (5) are fixedly mounted at the four corners of the top of the base (1); a top frame (4) is fixedly mounted on the top of the support legs (5); a turning mechanism (3) is fixedly mounted at both ends of the top frame (4); a conveying mechanism (6) is fixedly mounted in the middle of the top of the base (1); a driving mechanism (2) is fixedly mounted on the rear side of the turning mechanism (3); and a welding mechanism (7) is fixedly mounted in the middle of the right side of the top frame (4); The welding mechanism (7) comprises a support arm (71), the support arm (71) being fixedly mounted in the middle of the top rear side of the top frame (4), a first cylinder (72) being fixedly mounted on the top of the support arm (71), and a bottom output end of the first cylinder (72) passing through the support arm (71) and being fixedly connected to a laser welding head (73).

2. A welding device for furnace tube processing according to claim 1, characterized in that: The flip mechanism (3) comprises a guide rail (31), the guide rail (31) is fixedly mounted on both ends of the top frame (4), the rear side of the guide rail (31) is connected to the driving mechanism (2), the guide rail (31) is internally rotatably connected to a screw rod (32), the screw threads at both ends of the screw rod (32) are screwed in opposite directions, both ends of the screw rod (32) are threadedly connected to a slider (33), and a clamping member (34) is fixedly mounted on the top of the slider (33).

3. A welding device for furnace tube processing according to claim 2, characterized in that: The clamping member (34) comprises a fixing rod (341), wherein the fixing rod (341) is fixedly mounted on the top of the slider (33), a clamping frame (342) is fixedly mounted on the top of the fixing rod (341), and two transmission rollers (343) are rotatably connected on both sides of the clamping frame (342).

4. A welding device for furnace tube processing according to claim 3, characterized in that: A mounting frame (344) is fixedly mounted on one side of the upper end of the clamping frame (342); a first motor (345) is fixedly connected to the outer side of the mounting frame (344); an output end of the first motor (345) passes through the mounting frame (344) and is fixedly mounted with a transmission pulley (346); an upper end of a side of the clamping frame (342) close to the first motor (345) is also rotatably connected with a transmission pulley (346); the two transmission pulleys (346) are connected via a transmission belt, and the inner side of the transmission pulley (346) is fixedly connected to the end of a transmission roller (343).

5. A welding device for furnace tube processing according to claim 2, characterized in that: The driving mechanism (2) comprises a side plate (21) and a worm wheel (22), wherein the worm wheel (22) is rotatably connected to one end of a guide rail (31), the side plate (21) is fixedly mounted on both ends of one side of the top frame (4), the inner side of the side plate (21) is rotatably connected to a worm (23), the worm (23) and the worm wheel (22) are transmission-connected, the outer side of one side plate (21) is fixedly connected to a second motor (24), the output end of the second motor (24) passes through the side plate (21) and is fixedly connected to one end of the worm (23), and the worm (23) and one end of the lead screw (32) are fixedly connected.

6. A welding device for furnace tube processing according to claim 4, characterized in that: The conveying mechanism (6) comprises a second cylinder (61), the second cylinder (61) is fixedly mounted in the middle of the top of the base (1), a conveying frame (62) is fixedly mounted at the output end of the second cylinder (61), a base frame (63) is fixedly mounted at both ends of the inner side of the conveying frame (62), and a conveyor belt (64) is rotatably connected to the inner side of the base frame (63).

7. A welding device for furnace tube processing according to claim 6, characterized in that: The shape formed by the two base frames (63) is a V-shape, and the side shape of the clamping frame (342) is also set to be a V-shape.

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