Automatic welding protection device for high-purity gas pipeline

Abstract

The utility model relates to pipeline welding technical field, and disclose a kind of automatic welding protection device of high-purity gas pipeline, including base, the top of base is provided with protection device, the inside of protection device is provided with clamping device;The clamping device includes motor, and the bottom of motor is fixedly connected at the top of base.The utility model passes through clamping device, when the output shaft of motor rotates, it can drive bidirectional screw rod, threaded sleeve and clamping plate to move, when bidirectional screw rod rotates, it can drive pulley one, belt and pulley two to rotate, when pulley two rotates, it can drive bidirectional screw rod to rotate, when bidirectional screw rod rotates, it can drive threaded block and fixed plate to move, so that when clamping plate and fixed plate move to middle, it can clamp pipeline, and then prevent the problem of misalignment, uneven gap caused by pipeline deviation.

Description

Technical Field

[0001] This utility model relates to the field of pipeline welding technology, specifically to an automatic welding protection device for high-purity gas pipelines. Background Technology

[0002] High-purity gas pipelines are widely used in semiconductor manufacturing, chemical industry, and electronics industry, especially in high-precision production processes where gases requiring extremely high purity need to be transported through pipelines. Any contamination of the gas within the pipeline can lead to equipment malfunction, product defects, or even accidents. Therefore, the welding quality of high-purity gas pipelines is crucial for maintaining gas purity.

[0003] Existing technologies, such as the patent with publication number CN213646281U, disclose a welding protection device for tungsten inert gas (TIG) motorized welding of titanium pipes, including a drag shield and a rotating fixed support. The outer side of the curved surface of the drag shield is welded with a stainless steel gas pipe and a spring, and the inner side of the curved surface of the drag shield has an arc-shaped stainless steel mesh port. The rotating fixed support uses a central circular hole to press the spring on the drag shield to achieve the connection between the drag shield and the titanium pipe. The rotating fixed support is composed of a stainless steel bracket and a fixing clamp. The rotating fixed support uses a central circular hole to press the spring on the drag shield to achieve a close connection between the drag shield and the titanium pipe. The rotating fixed support is then connected to the welding torch rotation mechanism through the fixing clamps at both ends to achieve synchronous rotation of the drag shield and the welding torch.

[0004] While the aforementioned existing technologies have significant beneficial effects, they still have shortcomings: Currently, when welding gas pipelines, it is difficult to firmly fix the two sections of the pipeline and ensure that the interface is aligned. This leads to problems such as misalignment and uneven gaps caused by pipeline displacement, and may also cause gas leakage during pipeline welding. Sealing devices reduce the risk of leakage from the source by sealing the pipeline openings and ensuring the safe operation of the system. Therefore, an automatic welding protection device for high-purity gas pipelines is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an automatic welding protection device for high-purity gas pipelines. When the output shaft of the motor rotates, it drives the bidirectional threaded rod, threaded sleeve, and clamping plate to move. When the bidirectional threaded rod rotates, it drives pulley one, belt, and pulley two to rotate. When pulley two rotates, it drives the bidirectional threaded rotating rod to rotate. When the bidirectional threaded rotating rod rotates, it drives the threaded block and fixing plate to move. Thus, when the clamping plate and fixing plate move towards the center, they clamp the pipeline, thereby preventing misalignment and uneven gaps caused by pipeline displacement.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic welding protection device for high-purity gas pipelines, comprising a base, a protection device on the top of the base, and a clamping device inside the protection device; The clamping device includes a motor, the bottom of which is fixedly connected to the top of the base. A bidirectional threaded rod is fixedly connected to the output shaft of the motor. The bidirectional threaded rod rotatably passes through the interior of the protective device. A threaded sleeve is threadedly connected to the circumferential surface of the bidirectional threaded rod. A clamping plate is fixedly connected to the circumferential surface of the threaded sleeve. A pulley is fixedly connected to the circumferential surface of the bidirectional threaded rod. A belt is driven to the circumferential surface of the pulley. A pulley is driven to the inner wall of the belt. The pulley and pulley are connected via a belt drive. A bidirectional threaded rotating rod is fixedly connected to the inner wall of the pulley. The bidirectional threaded rotating rod rotatably passes through the interior of the protective device. A threaded block is threadedly connected to the circumferential surface of the bidirectional threaded rotating rod. A fixing plate is fixedly connected to the circumferential surface of the threaded block.

[0007] Preferably, the protective device has a limiting rod fixedly connected inside, the circumferential surface of which slides through the inner wall of the clamping plate. The protective device also has a limiting post fixedly connected inside, the circumferential surface of which slides through the inner wall of the fixed plate. The limiting rod is used to limit the displacement trajectory of the clamping plate, and the limiting post is used to limit the displacement trajectory of the fixed plate.

[0008] Preferably, the number of the threaded sleeve and clamping plate is set to two, and they are symmetrical to each other along the vertical central axis of the protection device. The number of the threaded block and fixing plate is set to two, and they are symmetrical to each other along the vertical central axis of the protection device. The function of the threaded sleeve is to drive the clamping plate to clamp the pipe.

[0009] Preferably, the protective device includes an observation window, which is provided on the front side of the protective device, and a pipe opening is provided on the side of the protective device. The purpose of the observation window is to allow for better observation of the pipe welding.

[0010] Preferably, the protective device is provided with a sealing device on its exterior. The sealing device includes a sealing ring, which is disposed on the inner wall of the pipe opening. A groove is provided on the top of the protective device. A slider is slidably connected to the inner wall of the groove. A support rod is fixedly connected to the top of the slider. A sealing plate is fixedly connected to the top of the support rod.

[0011] Preferably, the sealing plate has a through groove on its side, the inner wall of the through groove is threaded with a bolt, the circumferential surface of the bolt is threaded with a nut, and the inner wall of the slide groove is fixedly connected with a return spring. The end of the return spring away from the slide groove is fixedly connected to the side of the slider. The function of the return spring is to be able to reset when the sealing plate is loosened.

[0012] Preferably, the number of the slide groove, slider, support rod, sealing plate and return spring is set to two, and they are symmetrical to each other along the vertical central axis of the pipe opening. The number of the through groove, bolt and nut is set to two, and they are symmetrical to each other along the vertical central axis of the pipe opening. The function of the bolt and nut is to better seal the sealing ring.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This invention utilizes a clamping device. When the output shaft of the motor rotates, it drives the bidirectional threaded rod, threaded sleeve, and clamping plate to move. When the bidirectional threaded rod rotates, it drives pulley one, belt, and pulley two to rotate. When pulley two rotates, it drives the bidirectional threaded rotating rod to rotate. When the bidirectional threaded rotating rod rotates, it drives the threaded block and fixing plate to move. Thus, when the clamping plate and fixing plate move towards the center, they clamp the pipe, thereby preventing the problems of misalignment and uneven gaps caused by pipe displacement.

[0014] This invention utilizes a sealing device where a slider moves within a groove. As the slider moves, it drives a sealing plate via a support rod. When the sealing plate moves, it contacts a sealing ring, thus clamping the ring. The sealing plate can be secured with bolts and nuts. By rotating and tightening the nuts on the bolts, the two sealing plates can be fixed in place, allowing for better clamping of the sealing ring and preventing gas leakage during pipe welding.

[0015] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the present utility model; Figure 2 This is a schematic diagram of the clamping device structure of this utility model; Figure 3 This is a schematic diagram of the sealing device structure of this utility model; Figure 4 This utility model Figure 2A three-dimensional magnified structural diagram at point A in the middle; Figure 5 This utility model Figure 3 A three-dimensional magnified structural diagram at point B.

[0017] In the diagram: 1. Base; 2. Protective device; 3. Clamping device; 31. Motor; 32. Bidirectional threaded rod; 33. Threaded sleeve; 34. Clamping plate; 35. Pulley 1; 36. Belt; 37. Pulley 2; 38. Bidirectional threaded rotating rod; 39. Threaded block; 310. Fixing plate; 311. Limiting rod; 312. Limiting post; 4. Observation window; 5. Pipe opening; 6. Sealing device; 61. Sealing ring; 62. Slide groove; 63. Slider; 64. Support rod; 65. Sealing plate; 66. Through groove; 67. Bolt; 68. Nut; 69. Return spring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1 - Figure 5This embodiment of an automatic welding protection device for high-purity gas pipelines includes a base 1, a protection device 2 on the top of the base 1, and a clamping device 3 inside the protection device 2. The clamping device 3 includes a motor 31, the bottom of which is fixedly connected to the top of the base 1. The output shaft of the motor 31 is fixedly connected to a bidirectional threaded rod 32, which rotatably passes through the inside of the protection device 2. A threaded sleeve 33 is threadedly connected to the circumferential surface of the bidirectional threaded rod 32, and the circumferential surface of the threaded sleeve 33 is fixedly connected to... A clamping plate 34 is attached. A pulley 35 is fixedly connected to the circumferential surface of a double-threaded rod 32. A belt 36 is driven through the circumferential surface of pulley 35. A pulley 37 is driven through the inner wall of the belt 36. Pulley 35 and pulley 37 are connected via the belt 36. A double-threaded rotating rod 38 is fixedly connected to the inner wall of pulley 37. The double-threaded rotating rod 38 is rotatably connected inside the protection device 2 and rotatably passes through the inside of the protection device 2. The circumferential surface of the double-threaded rotating rod 38 is threaded... A threaded block 39 is attached, and a fixing plate 310 is fixedly connected to the circumferential surface of the threaded block 39; a limit rod 311 is fixedly connected inside the protection device 2, and the circumferential surface of the limit rod 311 slides through the inner wall of the clamping plate 34; a limit post 312 is fixedly connected inside the protection device 2, and the circumferential surface of the limit post 312 slides through the inner wall of the fixing plate 310. The function of the limit rod 311 is to limit the displacement trajectory of the clamping plate 34, and the function of the limit post 312 is to limit the displacement trajectory of the fixing plate 310; the threaded block 39 is fixedly connected to the protection device 2, and a fixing plate 310 is fixedly connected to the protection device 2. The number of threaded sleeves 33 and clamping plates 34 is set to two, and they are symmetrical to each other along the vertical central axis of the protective device 2. The number of threaded blocks 39 and fixing plates 310 is set to two, and they are symmetrical to each other along the vertical central axis of the protective device 2. The function of the threaded sleeves 33 is to drive the clamping plates 34 to clamp the pipe. The protective device 2 includes an observation window 4. An observation window 4 is provided on the front side of the protective device 2. A pipe opening 5 is opened on the side of the protective device 2. The function of the observation window 4 is to better observe the welding of the pipe.

[0020] like Figure 1 - Figure 2 , Figure 4As shown, the pipe welding in this utility model is similar to existing pipe welding methods, such as the tungsten inert gas (TIG) motorized welding titanium pipe welding protection device disclosed in CN213646281U. The main improvement of this utility model is that by starting the motor 31, when the output shaft of the motor 31 rotates, it drives the bidirectional threaded rod 32 to rotate. When the bidirectional threaded rod 32 rotates, it drives the threaded sleeve 33 to move. When the threaded sleeve 33 moves, it drives the clamping plate 34 to move. When the bidirectional threaded rod 32 rotates, it drives the pulley 35 to move forward. When the pulley 35 rotates, it drives the belt 36 to rotate. When the belt 36 rotates, it drives the pulley 37 to rotate. When the pulley 37 rotates, it drives the bidirectional threaded rod 38 to rotate. When the bidirectional threaded rod 38 rotates, it drives the threaded block 39 to move. When the threaded block 39 moves, it drives the fixing plate 310 to move. Thus, when the clamping plate 34 and the fixing plate 310 move towards the center, they clamp the pipe, thereby preventing the pipe from shifting and causing misalignment and uneven gaps.

[0021] like Figure 1 , Figure 3 , Figure 5 As shown, a sealing device 6 is provided on the outside of the protection device 2. The sealing device 6 includes a sealing ring 61, which is disposed on the inner wall of the pipe opening 5. A groove 62 is provided on the top of the protection device 2. A slider 63 is slidably connected to the inner wall of the groove 62. A support rod 64 is fixedly connected to the top of the slider 63. A sealing plate 65 is fixedly connected to the top of the support rod 64. A through groove 66 is provided on the side of the sealing plate 65. A bolt 67 is threadedly connected to the inner wall of the through groove 66. A nut 68 is threadedly connected to the circumferential surface of the bolt 67. A return spring 69 is fixedly connected to the inner wall of the groove 62. The end of the return spring 69 away from the slide groove 62 is fixedly connected to the side of the slider 63. The function of the return spring 69 is to reset the sealing plate 65 when it is loosened. The number of slide groove 62, slider 63, support rod 64, sealing plate 65 and return spring 69 is set to two, and they are symmetrical to each other along the vertical central axis of the pipe opening 5. The number of through groove 66, bolt 67 and nut 68 is set to two, and they are symmetrical to each other along the vertical central axis of the pipe opening 5. The function of bolt 67 and nut 68 is to better seal the sealing ring 61.

[0022] like Figure 1 , Figure 3 , Figure 5As shown, by sealing the pipe opening 5, a sealing device 6 can be used. The slider 63 moves inside the groove 62. When the slider 63 moves, it will drive the sealing plate 65 to move through the support rod 64. When the sealing plate 65 moves, it will contact the sealing ring 61, thereby clamping the sealing ring 61. When the sealing plate 65 clamps the sealing ring 61, the sealing plate 65 can be fixed by bolts 67 and nuts 68. By rotating and tightening the nut 68 on the bolt 67, the two sealing plates 65 can be fixed, so that the sealing plate 65 can better clamp the sealing ring 61, thereby preventing gas leakage during pipe welding.

[0023] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An automatic welding protection device for high-purity gas pipelines, comprising a base (1), characterized in that, The base (1) is provided with a protective device (2) on its top, and a clamping device (3) is provided inside the protective device (2). The clamping device (3) includes a motor (31), the bottom of which is fixedly connected to the top of the base (1). The output shaft of the motor (31) is fixedly connected to a bidirectional threaded rod (32). The bidirectional threaded rod (32) rotates through the interior of the protective device (2). A threaded sleeve (33) is threadedly connected to the circumferential surface of the bidirectional threaded rod (32). A clamping plate (34) is fixedly connected to the circumferential surface of the threaded sleeve (33). A pulley (35) is fixedly connected to the circumferential surface of the bidirectional threaded rod (32). A belt is driven through the circumferential surface of the pulley (35). (36) The inner wall of the belt (36) is connected to a pulley two (37). The pulley one (35) and the pulley two (37) are connected by the belt (36). The inner wall of the pulley two (37) is fixedly connected to a bidirectional threaded rod (38). The bidirectional threaded rod (38) is rotatably connected inside the protection device (2). The bidirectional threaded rod (38) rotatably passes through the inside of the protection device (2). The circumferential surface of the bidirectional threaded rod (38) is threadedly connected to a threaded block (39). The circumferential surface of the threaded block (39) is fixedly connected to a fixing plate (310).

2. The automatic welding protection device for high-purity gas pipelines according to claim 1, characterized in that, The protective device (2) is internally fixedly connected to a limiting rod (311), the circumferential surface of which slides through the inner wall of the clamping plate (34). The protective device (2) is internally fixedly connected to a limiting post (312), the circumferential surface of which slides through the inner wall of the fixing plate (310).

3. The automatic welding protection device for high-purity gas pipelines according to claim 1, characterized in that, The number of the threaded sleeve (33) and clamping plate (34) is set to two, and they are symmetrical to each other along the vertical central axis of the protection device (2). The number of the threaded block (39) and fixing plate (310) is set to two, and they are symmetrical to each other along the vertical central axis of the protection device (2).

4. The automatic welding protection device for high-purity gas pipelines according to claim 1, characterized in that, The protective device (2) includes an observation window (4), and the observation window (4) is provided on the front side of the protective device (2). A pipe opening (5) is provided on the side of the protective device (2).

5. An automatic welding protection device for high-purity gas pipelines according to claim 1, characterized in that, The protective device (2) is provided with a sealing device (6) on its exterior. The sealing device (6) includes a sealing ring (61). The sealing ring (61) is provided on the inner wall of the pipe opening (5). The top of the protective device (2) is provided with a sliding groove (62). A slider (63) is slidably connected to the inner wall of the sliding groove (62). A support rod (64) is fixedly connected to the top of the slider (63). A sealing plate (65) is fixedly connected to the top of the support rod (64).

6. An automatic welding protection device for high-purity gas pipelines according to claim 5, characterized in that, The sealing plate (65) has a through groove (66) on its side. The inner wall of the through groove (66) is threaded with a bolt (67). The circumferential surface of the bolt (67) is threaded with a nut (68). The inner wall of the slide groove (62) is fixedly connected with a return spring (69). The end of the return spring (69) away from the slide groove (62) is fixedly connected to the side of the slider (63).

7. An automatic welding protection device for high-purity gas pipelines according to claim 6, characterized in that, The number of the slide (62), slider (63), support rod (64), sealing plate (65) and reset spring (69) is set to two, and they are symmetrical to each other along the vertical central axis of the pipe opening (5). The number of the through groove (66), bolt (67) and nut (68) is set to two, and they are symmetrical to each other along the vertical central axis of the pipe opening (5).

Images