An adjustable helix welding support device

Abstract

This utility model discloses an adjustable spiral welding support device, which includes a base support assembly for supporting a linear drive assembly. The linear drive assembly drives a vertical adjustment assembly for lateral linear movement. The vertical adjustment assembly adjusts the vertical height of the lateral adjustment assembly, and the lateral adjustment assembly adjusts the spacing of the auxiliary support assembly and ensures that the auxiliary support surface of the auxiliary support assembly is in contact with the outer wall of the spiral. This utility model has the function of adjusting the support height as needed to adapt to the welding support requirements of spirals of various sizes. With the cooperation of the linear drive assembly, the support range can automatically move with the movement of the welding area. It also realizes the function of providing auxiliary support for the welding area of ​​the spiral during the welding process, which not only avoids the spiral from being deformed under pressure during the welding process, but also ensures the product quality of the finished spiral, making it suitable for widespread promotion and use.

Description

Technical Field

[0001] This utility model belongs to the field of spiral welding technology, specifically an adjustable spiral welding support device. Background Technology

[0002] Helical welding most commonly refers to the welding of the blades to the central shaft of a screw conveyor. Helical welded products, especially helical welded steel pipes and various helical welded structural components, are widely used in numerous engineering fields due to their unique manufacturing process and structural advantages. Their main applications include: pipeline engineering and conveying systems, material handling equipment, mixing and blending equipment, building and structural engineering, mechanical parts, and energy and power. Their applications are primarily concentrated in pipeline engineering requiring long-distance, high-flow-rate fluid transport, and in mechanical equipment that utilizes helical structures to achieve material conveying, mixing, and lifting functions. They also have wide applications in building structures and specialized fields.

[0003] Currently, existing spiral welding equipment generally uses a two-end support method for welding, which results in a lack of support in the middle welding area of ​​the spiral and makes it impossible to reduce the radius of the spiral blades as needed. Not only is the spiral prone to bending and deformation under pressure during the welding process, but the welding efficiency of the spiral is also poor, and the welding effect of the spiral cannot be guaranteed. Therefore, it is necessary to design an adjustable spiral welding support device. Summary of the Invention

[0004] To address the aforementioned issues, and to resolve the problems arising from the common use of two-end support in existing spiral welding equipment, which results in insufficient support in the central welding area of ​​the spiral and the inability to reduce the radius of the spiral blades as needed, leading to easy bending and deformation of the spiral during welding, poor welding efficiency, and compromised welding quality, this invention provides an adjustable spiral welding support device. This device effectively adjusts the support height to accommodate welding support requirements for various spiral sizes. Furthermore, with the assistance of a linear drive component, the support range automatically moves with the welding area. It also provides auxiliary support for the spiral welding area during the welding process, preventing deformation of the spiral during welding and ensuring the quality of the finished spiral.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable spiral welding support device, comprising a bottom support assembly, wherein the bottom support assembly is used to support a linear drive assembly, the linear drive assembly is used to drive a vertical adjustment assembly to move laterally linearly, the vertical adjustment assembly is used to adjust the vertical height of the horizontal adjustment assembly, and the horizontal adjustment assembly is used to adjust the auxiliary support spacing of the auxiliary support assembly and to make the auxiliary support surface of the auxiliary support assembly fit against the outer wall of the spiral.

[0006] The aforementioned adjustable spiral welding support device includes a bottom support assembly comprising a bottom support plate, a bottom support groove formed on the upper surface of the bottom support plate, and a side hole formed on the inner side wall of the bottom support groove; a support column is provided on the outer wall of the bottom surface of the bottom support plate, and a connecting plate is provided on the outer wall of the support column, wherein a connecting hole is formed on the outer wall of the bottom surface of the connecting plate.

[0007] The aforementioned adjustable spiral welding support device includes a linear drive component comprising a first servo motor detachably connected to the bottom support groove, an output shaft of the first servo motor connected to a lead screw, a first ball nut provided on the outer wall of the lead screw, and a vertical plate detachably connected to the outer wall of the first ball nut; a slider is fixedly connected to the upper surface of the vertical plate, and a through hole is provided on the outer wall of the slider, wherein the inner wall of the through hole is slidably connected to the inner wall of the side hole.

[0008] The aforementioned adjustable spiral welding support device includes a horizontal plate, which is detachably connected to the upper surface of a slider. An electric hydraulic cylinder is detachably connected to the outer wall of the bottom surface of the horizontal plate. One end of a hydraulic telescopic rod is slidably connected to the inner wall of the electric hydraulic cylinder. A top plate is provided at the other end of the hydraulic telescopic rod, and a support groove is provided on the upper surface of the top plate.

[0009] In the aforementioned adjustable spiral welding support device, a limiting rod is detachably connected to the outer wall of the bottom surface of the top plate, and a limiting hole is opened on the upper surface of the horizontal plate, wherein the outer wall of the limiting rod is slidably connected to the inner wall of the limiting hole.

[0010] The aforementioned adjustable spiral welding support device includes a lateral adjustment component comprising a second servo motor detachably connected to the outer wall of a top plate. One end of the output shaft of the second servo motor is connected to a rotating shaft, and the other end of the rotating shaft is rotatably connected to the inner wall of a support groove. The outer wall of the rotating shaft is provided with a left-hand thread and a right-hand thread. A second ball nut is provided on the outer wall of the left-hand thread, and a first adjusting plate is detachably connected to the outer wall of the second ball nut. A first adjusting hole is provided on the outer wall of the first adjusting plate. A third ball nut is provided on the outer wall of the right-hand thread, and a second adjusting plate is detachably connected to the outer wall of the third ball nut. A second adjusting hole is provided on the outer wall of the second adjusting plate. A slide rail is provided on the inner wall of the bottom surface of the support groove, and a sliding hole is provided on the outer wall of the slide rail. The inner wall of the sliding hole is slidably connected to the inner walls of the first and second adjusting holes.

[0011] The aforementioned adjustable spiral welding support device includes an auxiliary support assembly comprising a first auxiliary support plate and a second auxiliary support plate. The first auxiliary support plate is detachably connected to the upper surface of a first adjusting plate, and a first auxiliary support shaft is rotatably connected to the outer side wall of the first auxiliary support plate, with a first auxiliary support roller disposed on the outer side wall of the first auxiliary support shaft. The second auxiliary support plate is detachably connected to the upper surface of a second adjusting plate, and a second auxiliary support shaft is rotatably connected to the outer side wall of the second auxiliary support plate, with a second auxiliary support roller disposed on the outer side wall of the second auxiliary support shaft.

[0012] In the aforementioned adjustable spiral welding support device, when the second servo motor rotates in the forward direction, the first adjusting plate and the second adjusting plate move closer to each other at the same speed, and when the second servo motor rotates in the reverse direction, the first adjusting plate and the second adjusting plate move further apart at the same speed.

[0013] Compared with the prior art, the beneficial effects of this utility model are: (1) The first servo motor drives the lead screw to rotate, thereby driving the vertical plate and slider to move linearly inside the bottom support groove under the cooperation of the first ball nut and the inner wall of the through hole and the inner wall of the side hole. This drives the vertical adjustment component, the horizontal adjustment component and the auxiliary support component to be positioned laterally according to the length of the spiral body. Then, the electric hydraulic cylinder drives the hydraulic telescopic rod to extend and slide, thereby driving the top plate to move vertically linearly. This drives the auxiliary support component to be positioned vertically to the required position. At the same time, the outer wall of the limit rod can slide along the inner wall of the limit hole. This effectively realizes the function of the device to adjust the support height as needed to adapt to the welding support requirements of spiral bodies of different sizes. Moreover, under the cooperation of the linear drive component, the support range can automatically move with the movement of the welding area, which not only improves the applicability of the device, but also ensures the support effect of the device.

[0014] (2) The second servo motor drives the rotating shaft to rotate, thereby driving the left-hand and right-hand threaded wires to rotate. The left-hand threaded wire rotates and, under the action of the second ball nut and the first adjusting hole sliding along the slide hole, drives the first adjusting plate and the first auxiliary support roller to move linearly along the slide rail to fit the outer wall of the spiral. At the same time, the right-hand threaded wire rotates and, under the action of the third ball nut and the second adjusting hole sliding along the slide hole, drives the second adjusting plate and the second auxiliary support roller to move linearly along the slide rail to fit the outer wall of the spiral. This effectively realizes the function of the device in providing auxiliary support for the spiral welding area during the spiral welding process. In addition, during the welding process, the second servo motor can be used to bring the first and second auxiliary support rollers closer to each other and compress the radius of the spiral blades, thereby adjusting the radius of the spiral blades as needed. This not only avoids the spiral from being deformed due to the lack of central support during the welding process, but also ensures the product quality of the finished spiral and improves the welding efficiency of the spiral. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the bottom support component structure of this utility model; Figure 3 This is a schematic diagram of the linear drive component structure of this utility model; Figure 4 This is a schematic diagram of the vertical adjustment component structure of this utility model; Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point A in the middle; Figure 6 This is a schematic diagram of the lateral adjustment component and auxiliary support component of this utility model; Figure 7 For the present utility model Figure 6 Enlarged structural diagram at point B; In the diagram: 1. Base support assembly; 101. Base support plate; 102. Base support groove; 103. Support column; 104. Connecting plate; 105. Connecting hole; 106. Side hole; 2. Linear drive assembly; 201. First servo motor; 202. Lead screw; 203. First ball nut; 204. Vertical plate; 205. Slider; 206. Through hole; 3. Vertical adjustment assembly; 301. Horizontal plate; 302. Electric hydraulic cylinder; 303. Hydraulic telescopic rod; 304. Top plate; 305. Limiting rod; 306. Limiting hole; 307. Support groove; 4. Lateral adjustment Section components; 401, second servo motor; 402, rotating shaft; 403, left-hand threaded wire; 404, right-hand threaded wire; 405, second ball nut; 406, third ball nut; 407, first adjusting plate; 408, first adjusting hole; 409, second adjusting plate; 4010, second adjusting hole; 4011, slide rail; 4012, sliding hole; 5, auxiliary support components; 501, first auxiliary support plate; 502, first auxiliary support shaft; 503, first auxiliary support roller; 504, second auxiliary support plate; 505, second auxiliary support shaft; 506, second auxiliary support roller. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example

[0017] Depend on Figures 1-7 This invention discloses an adjustable spiral welding support device, comprising a base support assembly 1, which supports a linear drive assembly 2. The linear drive assembly 2 drives a vertical adjustment assembly 3 to move laterally linearly. The vertical adjustment assembly 3 adjusts the vertical height of the horizontal adjustment assembly 4, and the horizontal adjustment assembly 4 adjusts the spacing of the auxiliary support assembly 5 and ensures that the auxiliary support surface of the auxiliary support assembly 5 is in contact with the outer wall of the spiral. This invention achieves the function of adjustable support height to meet the welding support needs of spirals of various sizes. Furthermore, with the cooperation of the linear drive assembly 2, the support range can automatically move with the welding area. It also provides auxiliary support for the welding area of ​​the spiral during welding, thus avoiding deformation of the spiral under pressure during welding and ensuring the product quality of the finished spiral.

[0018] Specifically, the bottom support assembly 1 includes a bottom support plate 101, the upper surface of the bottom support plate 101 is provided with a bottom support groove 102, and the inner side wall of the bottom support groove 102 is provided with a side hole 106; the bottom outer wall of the bottom surface of the bottom support plate 101 is provided with a support column 103, and the outer side wall of the support column 103 is provided with a connecting plate 104, wherein the bottom outer wall of the connecting plate 104 is provided with a connecting hole 105, and by cooperating with an external connector along the connecting hole 105, the connecting plate 104 and the support surface can be detachably connected, thereby enabling the bottom support plate 101 and the support surface to be detachably connected.

[0019] Specifically, the linear drive assembly 2 includes a first servo motor 201, which is detachably connected to the bottom support groove 102. The output shaft of the first servo motor 201 is connected to a lead screw 202. A first ball nut 203 is provided on the outer wall of the lead screw 202, and a vertical plate 204 is detachably connected to the outer wall of the first ball nut 203. A slider 205 is fixedly connected to the upper surface of the vertical plate 204, and a through hole 206 is provided on the outer wall of the slider 205. The inner wall of the through hole 206 is slidably connected to the inner wall of the side hole 106. The first servo motor 201 drives the lead screw 202 to rotate, thereby driving the vertical plate 204 and the slider 205 to move linearly inside the bottom support groove 102 under the cooperation of the first ball nut 203 and the sliding action between the inner wall of the through hole 206 and the inner wall of the side hole 106. This allows the vertical adjustment assembly 3, the horizontal adjustment assembly 4, and the auxiliary support assembly 5 to be laterally positioned to the required position according to the length of the spiral.

[0020] Specifically, the vertical adjustment component 3 includes a horizontal plate 301, which is detachably connected to the upper surface of the slider 205. An electric hydraulic cylinder 302 is detachably connected to the outer wall of the bottom surface of the horizontal plate 301. One end of a hydraulic telescopic rod 303 is slidably connected to the inner wall of the electric hydraulic cylinder 302. A top plate 304 is provided at the other end of the hydraulic telescopic rod 303. A support groove 307 is provided on the upper surface of the top plate 304. The operation of the electric hydraulic cylinder 302 drives the hydraulic telescopic rod 303 to extend and slide, thereby driving the top plate 304 to move vertically linearly, which in turn drives the auxiliary support component 5 to be vertically positioned to the required position.

[0021] Specifically, a limiting rod 305 is detachably connected to the outer wall of the bottom surface of the top plate 304, and a limiting hole 306 is provided on the upper surface of the horizontal plate 301. The outer wall of the limiting rod 305 is slidably connected to the inner wall of the limiting hole 306. The stability of the linear movement of the top plate 304 is ensured by the sliding of the outer wall of the limiting rod 305 along the inner wall of the limiting hole 306.

[0022] Specifically, the lateral adjustment assembly 4 includes a second servo motor 401, which is detachably connected to the outer wall of the top plate 304. The output shaft of the second servo motor 401 is connected to one end of a rotating shaft 402, and the other end of the rotating shaft 402 is rotatably connected to the inner wall of the support groove 307. The outer wall of the rotating shaft 402 has a left-hand thread 403 and a right-hand thread 404. The outer wall of the left-hand thread 403 is provided with a second ball nut 405, and the outer wall of the second ball nut 405 is detachably connected to a first adjusting plate 407, wherein the outer wall of the first adjusting plate 407 has a first adjusting hole 408. The outer wall of the right-hand thread 404 is provided with a third ball nut 406, and the outer wall of the third ball nut 406 is detachably connected to a second adjusting plate 409, wherein the outer wall of the second adjusting plate 409 has a second adjusting hole 4010. The support groove... The inner wall of the bottom surface of 307 is provided with a slide rail 4011, and the outer wall of the slide rail 4011 is provided with a sliding hole 4012. The inner wall of the sliding hole 4012 is slidably connected to the inner wall of the first adjustment hole 408 and the second adjustment hole 4010. The second servo motor 401 drives the rotating shaft 402 to rotate, thereby driving the left-hand thread 403 and the right-hand thread 404 to rotate. The left-hand thread 403 rotates and, under the action of the second ball nut 405 and the first adjustment hole 408 sliding along the sliding hole 4012, drives the first adjustment plate 407 and the first auxiliary support roller 503 to move linearly along the slide rail 4011 to fit the outer wall of the spiral. At the same time, the right-hand thread 404 rotates and, under the action of the third ball nut 406 and the second adjustment hole 4010 sliding along the sliding hole 4012, drives the second adjustment plate 409 and the second auxiliary support roller 506 to move linearly along the slide rail 4011 to fit the outer wall of the spiral.

[0023] Specifically, the auxiliary support assembly 5 includes a first auxiliary support plate 501 and a second auxiliary support plate 504. The first auxiliary support plate 501 is detachably connected to the upper surface of the first adjusting plate 407. A first auxiliary support shaft 502 is rotatably connected to the outer wall of the first auxiliary support plate 501, and a first auxiliary support roller 503 is provided on the outer wall of the first auxiliary support shaft 502. The second auxiliary support plate 504 is detachably connected to the upper surface of the second adjusting plate 409. A second auxiliary support shaft 505 is rotatably connected to the outer wall of the second auxiliary support plate 504, and a second auxiliary support roller 506 is provided on the outer wall of the second auxiliary support shaft 505. The detachable connection between the first auxiliary support plate 501 and the first adjusting plate 407 and the detachable connection between the second auxiliary support plate 504 and the second adjusting plate 409 allows the device to replace various auxiliary support assemblies 5 of different sizes as needed, thereby further improving the applicability of the device.

[0024] Specifically, when the second servo motor 401 rotates in the forward direction, the first adjustment plate 407 and the second adjustment plate 409 move closer to each other at the same speed. When the second servo motor 401 rotates in the reverse direction, the first adjustment plate 407 and the second adjustment plate 409 move further apart at the same speed. The forward and reverse rotation of the second servo motor 401 can respectively bring the first adjustment plate 407 and the second adjustment plate 409 closer together or further apart at the same speed.

[0025] In use, the first servo motor 201 drives the lead screw 202 to rotate, thereby driving the vertical plate 204 and the slider 205 to move linearly within the bottom support groove 102 under the sliding action of the first ball nut 203 and the inner wall of the through hole 206 and the inner wall of the side hole 106. This, in turn, drives the vertical adjustment component 3, the horizontal adjustment component 4 and the auxiliary support component 5 to be laterally positioned according to the length of the spiral body. Then, the electric hydraulic cylinder 302 drives the hydraulic telescopic rod 303 to extend and slide, thereby driving the top plate 304 to move vertically linearly. The movement allows the auxiliary support component 5 to be vertically positioned to the desired location. Simultaneously, the outer wall of the limiting rod 305 slides along the inner wall of the limiting hole 306, effectively enabling the device to adjust its support height as needed to accommodate welding support requirements for various sizes of spirals. Furthermore, with the cooperation of the linear drive component 2, the support range automatically moves with the welding area, improving the device's applicability and ensuring its support effect. Then, the second servo motor 401 drives the rotating shaft 402 to rotate, thereby driving the left-hand spiral... The rotation of the right-hand thread 403 and the right-hand thread 404, combined with the rotation of the left-hand thread 403 and the sliding action of the second ball nut 405 and the first adjusting hole 408 along the sliding hole 4012, drives the first adjusting plate 407 and the first auxiliary support roller 503 to move linearly along the slide rail 4011 to fit against the outer wall of the spiral. Simultaneously, the rotation of the right-hand thread 404, combined with the sliding action of the third ball nut 406 and the second adjusting hole 4010 along the sliding hole 4012, drives the second adjusting plate 409 and the second auxiliary support roller 506 to move along the slide rail 4011. 11. The linear movement of the device adheres to the outer wall of the spiral, effectively enabling it to provide auxiliary support for the welding area of ​​the spiral during the welding process. Furthermore, during the welding process, the second servo motor 401 can be used to bring the first auxiliary support roller 503 and the second auxiliary support roller 506 closer together and compress the radius of the spiral blades, thereby adjusting the radius of the spiral blades as needed. This not only avoids the spiral from being deformed due to the lack of central support during the welding process, but also ensures the product quality of the finished spiral and improves the welding efficiency of the spiral.

[0026] The first servo motor 201, the electric hydraulic cylinder 302, and the second servo motor 401 are all finished products manufactured using existing technology and can be purchased on the market; the components are all general standard parts or parts known to those skilled in the art, and their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable spiral welding support device, comprising a base support assembly (1), characterized in that: The bottom support assembly (1) is used to support the linear drive assembly (2), the linear drive assembly (2) is used to drive the vertical adjustment assembly (3) to move laterally linearly, the vertical adjustment assembly (3) is used to adjust the vertical height of the horizontal adjustment assembly (4), and the horizontal adjustment assembly (4) is used to adjust the auxiliary support spacing of the auxiliary support assembly (5) and make the auxiliary support surface of the auxiliary support assembly (5) fit against the outer wall of the spiral body.

2. The adjustable spiral welding support device according to claim 1, characterized in that: The bottom support assembly (1) includes a bottom support plate (101), the upper surface of the bottom support plate (101) is provided with a bottom support groove (102), and the inner sidewall of the bottom support groove (102) is provided with a side hole (106). The bottom support plate (101) is provided with a support column (103) on the outer wall of the bottom surface, and a connecting plate (104) is provided on the outer wall of the support column (103), wherein the connecting plate (104) is provided with a connecting hole (105) on the outer wall of the bottom surface.

3. An adjustable helical body welding support apparatus as defined in claim 2, wherein: The linear drive assembly (2) includes a first servo motor (201), which is detachably connected inside the bottom support groove (102). The output shaft of the first servo motor (201) is connected to a lead screw (202). A first ball nut (203) is provided on the outer wall of the lead screw (202), and a vertical plate (204) is detachably connected to the outer wall of the first ball nut (203). A slider (205) is fixedly connected to the upper surface of the vertical plate (204), and a through hole (206) is provided on the outer side wall of the slider (205), wherein the inner side wall of the through hole (206) is slidably connected to the inner side wall of the side hole (106).

4. An adjustable helical body welding support device according to claim 3, wherein: The vertical adjustment component (3) includes a horizontal plate (301), which is detachably connected to the upper surface of the slider (205), and an electric hydraulic cylinder (302) is detachably connected to the outer wall of the bottom surface of the horizontal plate (301). One end of a hydraulic telescopic rod (303) is slidably connected to the inner wall of the electric hydraulic cylinder (302), and a top plate (304) is provided at the other end of the hydraulic telescopic rod (303). A support groove (307) is provided on the upper surface of the top plate (304).

5. An adjustable helical body welding support apparatus as defined in claim 4, wherein: The bottom outer wall of the top plate (304) is detachably connected to a limiting rod (305), and a limiting hole (306) is opened on the upper surface of the horizontal plate (301), wherein the outer wall of the limiting rod (305) is slidably connected to the inner wall of the limiting hole (306).

6. The adjustable spiral welding support device according to claim 4, characterized in that: The lateral adjustment assembly (4) includes a second servo motor (401), which is detachably connected to the outer wall of the top plate (304). The output shaft of the second servo motor (401) is connected to one end of a rotating shaft (402), and the other end of the rotating shaft (402) is rotatably connected to the inner wall of the support groove (307). The outer wall of the rotating shaft (402) is provided with a left-hand thread (403) and a right-hand thread (404). The outer wall of the left-hand thread (403) is provided with a second ball nut (405), and the outer wall of the second ball nut (405) is detachably connected to a first adjusting plate (407), wherein the outer wall of the first adjusting plate (407) is provided with a first adjusting hole (408). The outer wall of the right-hand thread (404) is provided with a third ball nut (406), and the outer wall of the third ball nut (406) is detachably connected with a second adjusting plate (409), wherein the outer wall of the second adjusting plate (409) is provided with a second adjusting hole (4010). The inner wall of the bottom surface of the support groove (307) is provided with a slide rail (4011), and the outer wall of the slide rail (4011) is provided with a sliding hole (4012), wherein the inner wall of the sliding hole (4012) is slidably connected to the inner wall of the first adjustment hole (408) and the second adjustment hole (4010).

7. The adjustable spiral welding support device according to claim 6, characterized in that: The auxiliary support assembly (5) includes a first auxiliary support plate (501) and a second auxiliary support plate (504). The first auxiliary support plate (501) is detachably connected to the upper surface of the first adjusting plate (407). A first auxiliary support shaft (502) is rotatably connected to the outer wall of the first auxiliary support plate (501), and a first auxiliary support roller (503) is provided on the outer wall of the first auxiliary support shaft (502). The second auxiliary support plate (504) is detachably connected to the upper surface of the second adjusting plate (409). The outer side wall of the second auxiliary support plate (504) is rotatably connected to the second auxiliary support shaft (505), and the outer side wall of the second auxiliary support shaft (505) is provided with the second auxiliary support roller (506).

8. An adjustable helical body welding support device according to claim 6, wherein: When the second servo motor (401) rotates in the forward direction, the first adjustment plate (407) and the second adjustment plate (409) move closer to each other at the same speed. When the second servo motor (401) rotates in the reverse direction, the first adjustment plate (407) and the second adjustment plate (409) move further away from each other at the same speed.

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