Cylinder welding anti-deformation tool

Abstract

The utility model provides a cylinder welding anti-deformation tool which is contained in a cylinder body of a cylinder container and comprises an inner supporting structure, a plurality of telescopic structures and an outer supporting structure. The multiple telescopic structures are arranged along the periphery of the inner supporting structure at intervals and extend in the radial direction of the barrel, the inner ends of the telescopic structures are fixedly connected with the inner supporting structure, and the outer ends of the telescopic structures can stretch out and draw back relative to the inner supporting structure so that the outer ends of the telescopic structures can be away from or close to the inner supporting structure; the outer supporting structure comprises a plurality of outer arc sections, and the outer arc sections correspond to the telescopic structures one to one and are fixedly connected to the outer ends of the telescopic structures. Wherein the telescopic structure can stretch out and draw back to drive the outer arc section to move away from the inner supporting structure, the outer circumferential wall of the outer arc section can abut against the inner circumferential walls of cylinders of various sizes and specifications so as to assist welding forming of cylindrical containers of various sizes and specifications, and the universality of the tool is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and in particular to a cylindrical welding anti-deformation tooling. Background Technology

[0002] Cylindrical containers are widely used in various chemical equipment due to their good pressure-bearing capacity. During the manufacturing process, cylindrical containers require welding to be formed.

[0003] In related technologies, cylindrical containers include cylinders. A cylinder is formed by welding multiple cylinder bodies together. However, existing anti-deformation devices for welding cylinders are generally used to assist in welding cylinder bodies of fixed dimensions to form a cylinder, and they cannot be applied to welding cylinders of various different sizes and specifications, resulting in high usage costs. Utility Model Content

[0004] The purpose of this application is to provide a cylindrical welding anti-deformation tooling that can be applied to cylindrical welding of various sizes and specifications.

[0005] To solve the above-mentioned technical problems, this application adopts the following technical solution:

[0006] According to one aspect of this application, a cylindrical welding anti-deformation fixture is provided, which is housed within a cylindrical container to assist in the welding and forming of the cylindrical container. The fixture includes: an inner support structure, multiple telescopic structures, and an outer support structure; the multiple telescopic structures are spaced apart along the outer periphery of the inner support structure, and extend radially along the cylindrical body. The inner end of each telescopic structure is fixedly connected to the inner support structure, and the outer end of each telescopic structure is telescopic relative to the inner support structure, allowing the outer end of the telescopic structure to move away from or towards the inner support structure; the outer support structure includes multiple outer arc segments, each corresponding to one of the telescopic structures, and the outer arc segments are fixedly connected to the outer ends of the telescopic structures; wherein the telescopic structure can drive the outer arc segments to move away from the inner support structure, so that the outer peripheral wall of the outer arc segment abuts against the inner peripheral wall of the cylindrical body.

[0007] In some embodiments, the telescopic structure includes a first support tube, a second support tube, and a transmission assembly; the inner end of the first support tube is fixedly connected to the outer periphery of the inner support structure, and the outer end of the first support tube is sleeved with the second support tube; the outer end of the second support tube is fixedly connected to the outer arc segment; the transmission assembly is connected to the first support tube and the second support tube, thereby enabling the second support tube to extend or retract relative to the first support tube.

[0008] In some embodiments, the transmission assembly includes a threaded rod and a telescopic nut. The threaded rod extends along the extension direction of the first support tube, and its inner end is connected to the inner support structure. The threaded rod is rotatable about its own axis. The telescopic nut is fixedly connected to the second support tube and is threadedly connected to the threaded rod. Rotation of the threaded rod can drive the telescopic nut to extend or retract the second support tube relative to the first support tube.

[0009] In some embodiments, the threaded rod is located inside the first support tube, and the telescopic nut is located inside the second support tube.

[0010] In some embodiments, the inner support structure includes an inner support member and a plurality of fixing components; the plurality of fixing components are spaced apart along the outer periphery of the inner support member; the inner ends of the inner support member and the first support tube are respectively fixedly connected to opposite sides of the fixing components; a fixing hole is provided in the fixing component extending along the extension direction of the first support tube; the inner end of the threaded rod is accommodated in the fixing hole; an engaging structure is provided between the threaded rod and the inner peripheral wall of the fixing hole to limit the axial movement of the threaded rod relative to the fixing component along the fixing hole.

[0011] In some embodiments, the inner end of the threaded rod is recessed with a limiting groove; the fixing assembly includes a first fixing plate, a second fixing plate, and a plurality of engaging plates; the first fixing plate, the engaging plates, and the second fixing plate are arranged sequentially along the extension direction of the threaded rod; the first fixing plate is fixedly connected to the inner support member, and a first through hole for accommodating the threaded rod is formed in the first fixing plate; the second fixing plate is fixedly connected to the inner end of the first support tube, and a second through hole for accommodating the threaded rod is formed in the second fixing plate; the plurality of engaging plates are arranged circumferentially along the threaded rod, and portions of the plurality of engaging plates can be accommodated in the limiting groove.

[0012] In some embodiments, the inner support member is arranged in a ring shape, and the inner support member is divided into multiple inner arc segments along its circumference, with the opposing ends of any two adjacent inner arc segments being detachably connected.

[0013] In some embodiments, the inner support member includes an inner ring plate, and the first fixing plate is fixedly connected to the outer periphery of the inner ring plate; the inner end of the threaded rod passes through the inner ring plate; the inner end of the threaded rod is used to connect with an external driving member.

[0014] In some embodiments, the transmission assembly may be a telescopic cylinder, wherein the cylinder body and the telescopic end of the telescopic cylinder are respectively fixedly connected to the inner support structure and the second support tube.

[0015] In some embodiments, a limiting post protrudes from the end of the outer arc segment; a limiting plate is provided between the opposing ends of any two adjacent outer arc segments, and a limiting hole extending along the arc is provided in the limiting plate. The limiting hole is used to accommodate the limiting post at the opposing ends of any two adjacent outer arc segments, and the two limiting posts can move closer or further apart relative to each other within the limiting hole.

[0016] As can be seen from the above technical solution, this application has at least the following advantages and positive effects:

[0017] In this application, when the cylindrical container is welded and formed, the tooling is moved into the cylinder of the corresponding specification. The tooling can adjust the telescopic structure so that the outer end of the telescopic structure drives the outer arc segment to move. Multiple outer arc segments can respectively abut against the inner circumferential wall of the cylinder to support the cylinder, thereby effectively reducing the impact of welding residual stress on the cylinder, avoiding deformation of the cylinder, ensuring the roundness of the cylinder, and improving the product qualification rate of the cylinder.

[0018] After the cylinder body is welded, the telescopic structure is adjusted to retract, causing the outer end of the telescopic structure to move closer to the inner support structure, separating the outer arc segment from the cylinder body. Subsequently, this tooling can be moved into cylinders of other sizes, allowing the outer arc segment to abut against the inner circumferential wall of those cylinders, thereby assisting in the welding of cylinders of other sizes to form cylindrical containers, effectively improving the versatility of the tooling in this application. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the cylindrical welding anti-deformation tooling of this application held against the cylindrical cylinder.

[0020] Figure 2 yes Figure 1 Enlarged view of the structure at point A in the middle.

[0021] Figure 3 yes Figure 1 Enlarged view of the structure at point B in the middle.

[0022] Figure 4 This is a sectional view of the cylindrical welding anti-deformation tooling of this application from the axis to the outer peripheral wall.

[0023] Figure 5 yes Figure 4 Enlarged view of the structure at point C.

[0024] The reference numerals in the attached drawings are explained as follows: 10, cylinder; 100, internal support structure; 110, internal support component; 1101, inner arc segment; 111, inner ring plate; 1111, connecting hole; 112, sleeve; 113, support plate; 120, fixing component; 1201, fixing hole; 121, first fixing plate; 1211, first through hole; 122, second fixing plate; 1221, second through hole; 123, engaging plate; 1231, first... 200. T-hole; 210. Telescopic structure; 220. First support tube; 221. Second support tube; 222. Reinforcing plate; 230. Transmission assembly; 231. Threaded rod; 2311. Limiting groove; 232. Telescopic nut; 300. External support structure; 310. Outer arc segment; 311. First outer arc plate; 312. Second outer arc plate; 313. Connecting plate; 314. Limiting post; 315. Limiting plate; 3151. Limiting hole. Detailed Implementation

[0025] Typical embodiments embodying the features and advantages of this application will be described in detail in the following description. It should be understood that this application can have various variations in different embodiments, all of which do not depart from the scope of this application, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this application.

[0026] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] Cylindrical containers can be used to hold liquids, gases, and other substances, and can also be used as reaction vessels for various chemical reactions.

[0028] For ease of understanding and description, the cylindrical container is placed on the working ground as a reference. The direction of the cylindrical container relative to the working ground is referred to as the upper part of the following text, and the direction away from the upper part is referred to as the lower part of the following text.

[0029] In this embodiment, the cylindrical container includes a cylinder and two end caps. The cylinder extends vertically. The two end caps are located at the upper and lower ends of the cylinder, respectively, to seal and connect the cylinder.

[0030] A cylinder may include multiple cylinder bodies 10, which are arranged sequentially in a vertical direction. The multiple cylinder bodies 10 are welded together sequentially to form a cylinder. However, during the welding process, the residual stress of the welding may easily cause deformation of the cylinder bodies 10, resulting in the cylinder's roundness failing to meet the roundness standard.

[0031] Figure 1 This is a cross-sectional view of the cylindrical welding anti-deformation tooling of this application held against the cylindrical cylinder.

[0032] See Figure 1 This application provides a cylindrical welding anti-deformation fixture, which is housed within the cylindrical body 10 of a cylindrical container to assist in the welding and forming of the cylindrical container. The cylindrical welding anti-deformation fixture (hereinafter referred to as the fixture) includes: an inner support structure 100, multiple telescopic structures 200, and an outer support structure 300. The multiple telescopic structures 200 are spaced apart along the outer periphery of the inner support structure 100. The telescopic structures 200 extend radially along the cylindrical body 10, with their inner ends fixedly connected to the inner support structure 100, and their outer ends capable of telescopically extending or retracting relative to the inner support structure 100, so that their outer ends move away from or closer to the inner support structure 100. The outer support structure 300 includes multiple outer arc segments 310. Each outer arc segment 310 corresponds to one of the telescopic structures 200, and the outer arc segments 310 are fixedly connected to the outer ends of the telescopic structures 200. The telescopic structure 200 can drive the outer arc segment 310 away from the inner support structure 100 so that the outer peripheral wall of the outer arc segment 310 abuts against the inner peripheral wall of the cylinder 10.

[0033] When the cylinder is welded, the tooling is moved into the cylinder 10 of the corresponding specifications. The tooling can be adjusted by the telescopic structure 200, so that the outer end of the telescopic structure 200 drives the outer arc segment 310 to move. Multiple outer arc segments 310 can respectively abut against the inner peripheral wall of the cylinder 10 to support the cylinder 10, thereby effectively reducing the impact of residual stress on the cylinder 10 during welding, avoiding welding deformation of the cylinder 10, ensuring the roundness of the cylindrical container, and improving the product qualification rate of the cylindrical container.

[0034] After the cylinder welding is completed, the telescopic structure 200 is adjusted to retract, causing the outer end of the telescopic structure 200 to move the outer arc segment 310 closer to the inner support structure 100, separating the outer arc segment 310 from the cylinder 10. Subsequently, this tooling can be moved to the welding location of cylinders 10 of other sizes, with the outer arc segment 310 moving away from the inner support to abut against the inner circumferential wall of another cylinder 10. This assists in the welding and forming of cylinders of other sizes, eliminating the need for separate tooling for cylinders of different sizes and improving the versatility of the tooling in this application.

[0035] In this embodiment, the tooling can be housed within the cylinder 10 and is positioned near the end of the cylinder 10. When the end of the cylinder 10 is welded to other cylinders or other structures, the tooling can support the end of the cylinder 10, effectively preventing deformation of the end of the cylinder 10 due to residual stress from welding, thereby ensuring the roundness of the cylinder and the product qualification rate of the cylindrical container.

[0036] In some embodiments, when the outer peripheral wall of the cylinder 10 needs to be welded to other structures, the tooling can be accommodated inside the cylinder 10 and positioned relative to the weld joint between the cylinder 10 and other structures to prevent deformation of the outer periphery of the cylinder 10 due to residual stress from welding.

[0037] In other embodiments, there may be multiple tooling fixtures. The multiple tooling fixtures are arranged at intervals along the axial direction of the cylinder 10 to support each weld joint of the cylinder 10, ensuring the roundness of each weld joint of the cylinder and improving the product qualification rate of the cylindrical container.

[0038] Figure 2 yes Figure 1 Enlarged view of the structure at point A in the middle.

[0039] See Figure 1 and Figure 2 In this embodiment, the inner support structure 100 is used to support multiple telescopic structures 200 to ensure the reliability and stability of the tooling during use.

[0040] The internal support structure 100 includes an internal support member 110. The internal support member 110 is arranged in a ring shape. The axis of the internal support member 110 is coaxial with the axis of the cylinder 10, which facilitates the positioning of the tooling and ensures that the stress is uniform throughout the internal support member 110, thereby improving the structural strength and stability of the tooling.

[0041] Figure 3 yes Figure 1 Enlarged view of the structure at point B in the middle. Figure 4 This is a sectional view of the cylindrical welding anti-deformation tooling of this application from the axis to the outer peripheral wall. Figure 5 yes Figure 4 Enlarged view of the structure at point C.

[0042] See Figures 1 to 5 In this embodiment, the inner support member 110 includes an inner ring plate 111. The outer periphery of the inner ring plate 111 is fixedly connected to the inner ends of a plurality of telescopic structures 200 to support the telescopic structures 200.

[0043] In some embodiments, the inner ring plate 111 has a plurality of connecting holes 1111. The plurality of connecting holes 1111 are arranged at intervals along the circumference of the inner ring plate 111 and are provided in a one-to-one correspondence with the telescopic structure 200, so that the connecting holes 1111 are used to accommodate part of the telescopic structure 200.

[0044] Multiple sleeves 112 may be provided on the inner ring plate 111. The sleeves 112 are located inside the inner ring plate 111 and extend radially along the inner ring plate 111. The sleeves 112 are correspondingly provided with the connecting holes 1111 to fit the inner end of the telescopic structure 200, thereby limiting the movement of the telescopic structure 200 along the circumference of the inner ring plate 111, effectively ensuring the structural strength and stability of the tooling.

[0045] In other embodiments, the sleeve 112 is welded to the inner ring plate 111 to ensure the structural strength and stability of the inner support member 110.

[0046] See Figure 1 , Figure 2 , Figure 4 and Figure 5 In this embodiment, the inner support member 110 may further include a support plate 113. The support plate 113 extends in a plane perpendicular to the vertical direction. The support plate 113 is located inside the inner ring plate 111, so that the outer periphery of the support plate 113 is sealed to the inner peripheral wall of the inner ring plate 111, thereby enabling the support plate 113 to support the inner ring plate 111 and effectively ensuring the structural strength and stability of the inner support member 110.

[0047] In some embodiments, the support plate 113 may be arranged in a ring shape to reduce the weight of the tooling while ensuring the structural strength of the inner support member 110, and to facilitate the assembly and application of the tooling by workers.

[0048] In other embodiments, the support plate 113 may be welded to the sleeve 112 to improve the structural strength of the inner support 110.

[0049] In other embodiments, the length of the support plate 113 in the radial direction of the inner ring plate 111 is less than or equal to the length of the sleeve 112, so as to facilitate the connection of the inner end of the telescopic structure 200 with the external drive member.

[0050] In other embodiments, the support plate 113 may be located in the same plane as the axis of the sleeve 112 in the vertical direction. Multiple sleeves 112 are fixedly connected to the support plate 113 to enhance the structural strength between the inner ring plate 111, the sleeves 112 and the support plate 113, and to ensure the stability and reliability of the inner support member 110.

[0051] See Figure 1 , Figure 2 , Figure 4 and Figure 5 In this embodiment, the inner support structure 100 further includes a plurality of fixing components 120. The fixing components 120 are spaced apart along the outer periphery of the inner support member 110. Each fixing component 120 corresponds to a telescopic structure 200, and the inner ends of the inner support member 110 and the telescopic structure 200 are fixedly connected to opposite sides of the fixing components 120 to support and limit the telescopic structure 200, thereby preventing separation between the telescopic structure 200 and the inner support structure 100 and ensuring the connection strength and reliability between the telescopic structure 200 and the inner support structure 100.

[0052] The fixing assembly 120 has a fixing hole 1201 extending along the extension direction of the adjacent telescopic structure 200. The fixing hole 1201 communicates with the adjacent connecting hole 1111 so that the fixing hole 1201 is used to accommodate a portion of the telescopic structure 200.

[0053] In some embodiments, the inner peripheral wall of the fixing hole 1201 is engaged with a portion of the telescopic structure 200 to limit the circumferential and vertical movement of the telescopic structure 200 along the inner ring plate 111.

[0054] In some embodiments, the fixing assembly 120 includes a first fixing plate 121, a second fixing plate 122, and a plurality of engaging plates 123. The first fixing plate 121, engaging plates 123, and second fixing plate 122 are arranged sequentially along the radial direction of the inner ring plate 111. The first fixing plate 121 is fixedly connected to the outer periphery of the inner ring plate 111, and a first through hole 1211 coaxially disposed with the sleeve 112 is formed in the first fixing plate 121. The second fixing plate 122 is fixedly connected to the inner end of the telescopic structure 200, and a second through hole 1221 coaxially disposed with the sleeve 112 is formed in the second fixing plate 122. The plurality of engaging plates 123 are arranged circumferentially around the axis of adjacent sleeves 112, and the plurality of engaging plates 123 surround to form a third through hole 1231.

[0055] The first fixing plate 121, the plurality of locking plates 123 and the second fixing plate 122 can be connected in sequence so that the first through hole 1211, the third through hole 1231 and the second through hole 1221 are connected to form a fixing hole 1201 for a portion of the telescopic structure 200 to rotate within the fixing hole 1201.

[0056] In other embodiments, on a plane perpendicular to the axis of the fixing hole 1201, the engaging plate 123 may extend toward the axis of the fixing hole 1201 beyond the first fixing plate 121 and the second fixing plate 122, so that the engaging plate 123 can extend into the telescopic structure 200 and engage with the telescopic structure 200, thereby limiting the circumferential and vertical movement of the telescopic structure 200 along the inner ring plate 111.

[0057] In other embodiments, on a plane perpendicular to the axis of the fixing hole 1201, the first fixing plate 121 and the second fixing plate 122 may extend toward the axis of the fixing hole 1201 beyond the engaging plate 123, so that the first fixing plate 121, the engaging plate 123 and the second fixing plate 122 can surround and form a groove-shaped structure, so that a portion of the telescopic structure 200 can extend into the groove-shaped structure, so that the fixing component 120 engages with a portion of the telescopic structure 200, thereby limiting the circumferential and vertical movement of the telescopic structure 200 along the inner ring plate 111.

[0058] In some embodiments, the first fixing plate 121, the locking plate 123 and the second fixing plate 122 are detachably connected to facilitate the installation, disassembly and maintenance of the fixing assembly 120, thereby reducing the production and maintenance costs of the tooling.

[0059] In other embodiments, the first fixing plate 121, the snap-fit ​​plate 123 and the second fixing plate 122 can be fixedly connected to improve the structural strength and stability of the fixing assembly 120.

[0060] See Figure 1 , Figure 2 , Figure 4 and Figure 5 In this embodiment, the inner support 110 can be divided into multiple inner arc segments 1101 along its circumference. The opposing ends of any two adjacent inner arc segments 1101 can be detachably connected, thereby facilitating the assembly, disassembly and storage of the inner support 110, improving the efficiency of tooling use and reducing the production, use and storage costs of tooling.

[0061] See Figures 1 to 5 In this embodiment, the tooling also includes a telescopic structure 200. The telescopic structures 200 are arranged at intervals around the outer periphery of the inner ring plate 111 and are correspondingly arranged with the fixing components 120.

[0062] The telescopic structure 200 includes a first support tube 210, a second support tube 220, and a transmission assembly 230. The inner end of the first support tube 210 is fixedly connected to the outer periphery of the inner support structure 100, and the outer end of the first support tube 210 is sleeved with the second support tube 220. The outer end of the second support tube 220 is fixedly connected to the outer arc segment 310. The transmission assembly 230 is connected to the first support tube 210 and the second support tube 220, thereby enabling the second support tube 220 to extend or retract relative to the first support tube 210.

[0063] In this embodiment, the first support tube 210 extends radially along the inner support member 110. The inner end of the first support tube 210 is welded to the second fixing plate 122, and the axis of the first support tube 210 is coaxial with the axis of the second through hole 1221 to ensure the connection strength and reliability between the first support tube 210 and the inner support structure 100.

[0064] See Figures 1 to 5 In this embodiment, the second support tube 220 is coaxially arranged with the first support tube 210. The inner end of the second support tube 220 is sleeved on the first support tube 210, so that it can move relative to the first support tube 210 along the extension direction of the first support tube 210, thereby realizing the extension and retraction of the telescopic structure 200. The outer end of the second support tube 220 is fixedly connected to the outer arc segment 310 to drive the outer arc segment 310 to move.

[0065] See Figure 1 , Figure 2 , Figure 4 and Figure 5 In this embodiment, the transmission assembly 230 includes a threaded rod 231 and a telescopic nut 232. The threaded rod 231 extends along the extension direction of the first support tube 210. The inner end of the threaded rod 231 is connected to the inner support structure 100. The threaded rod 231 is rotatable about its own axis. The telescopic nut 232 is fixedly connected to the second support tube 220, and the telescopic nut 232 is threadedly connected to the threaded rod 231. The rotation of the threaded rod 231 can drive the telescopic nut 232 to extend or retract the second support tube 220 relative to the first support tube 210, thereby allowing the outer arc segment 310 to approach or move away from the inner peripheral wall of the cylinder 10.

[0066] In this embodiment, the inner end of the threaded rod 231 passes through the fixing hole 1201 and the sleeve 112 of the fixing assembly 120 to extend into the inner side of the inner support member 110. A locking structure is provided between the threaded rod 231 and the inner peripheral wall of the fixing hole 1201 to limit the axial movement of the threaded rod 231 relative to the fixing assembly 120 along the fixing hole 1201. The inner end of the threaded rod 231 is used to connect with an external driving component.

[0067] In some embodiments, a limiting groove 2311 is recessed on the outer periphery of the threaded rod 231, and the limiting groove 2311 extends in a ring shape along the circumference of the threaded rod 231.

[0068] When the first fixing plate 121, the plurality of engaging plates 123, and the second fixing plate 122 are assembled with the threaded rod 231, the first fixing plate 121 and the second fixing plate 122 are sleeved on the threaded rod 231. The plurality of engaging plates 123 are located between the first fixing plate 121 and the second fixing plate 122, and the plurality of engaging plates 123 are arranged around the periphery of the threaded rod 231. The ends of the plurality of engaging plates 123 near the threaded rod 231 extend into the limiting groove 2311, thereby limiting the threaded rod 231 to be positioned on the fixing assembly 120, so that the threaded rod 231 can only rotate around its own axis, preventing the threaded rod 231 from translating, and ensuring the reliability and stability of the tooling.

[0069] When the telescopic structure 200 is in use, an external force can be applied to the inner end of the threaded rod 231, causing the threaded rod 231 to rotate around its own axis within the fixing hole 1201. This rotation of the threaded rod 231 causes the telescopic nut 232 to move along the axis of the threaded rod 231, thereby moving the second support tube 220 and the outer arc segment 310, effectively ensuring the structural strength of the tooling. Furthermore, by rotating the threaded rod 231, the operator can adjust the distance between the outer arc segment 310 and the inner support structure 100, making the tooling suitable for welding cylinders of various sizes and specifications, ensuring the roundness of the cylinders, improving the versatility of the tooling, and reducing the production cost of cylinders of various sizes and specifications.

[0070] In this embodiment, the threaded rod 231 is located inside the first support tube 210, and the telescopic nut 232 is located inside the second support tube 220, so that the first support tube 210 and the second support tube 220 can protect the transmission component 230, thereby ensuring the reliability and stability of the telescopic structure 200.

[0071] In some embodiments, the threaded rod 231 may also be disposed outside the first support tube 210, and the telescopic nut 232 may be disposed outside the second support tube 220. The fixing assembly 120 and the sleeve may be disposed relative to the threaded rod 231, so that the operator can adjust the distance between the telescopic nut 232, the second support tube 220 and the outer arc segment 310 relative to the inner support structure 100 by rotating the threaded rod 231. This allows the tooling to be applied to cylinders of various sizes, improving the tooling's versatility and reducing the production costs of cylinders of various sizes.

[0072] In other embodiments, the telescopic structure 200 may further include a drive element (not shown). The drive element is drively connected to the transmission assembly 230 to drive the transmission assembly 230 to rotate.

[0073] In other embodiments, the driving component can be a tool such as a wrench, or an electric device such as a motor, as long as it can drive the transmission component 230 to rotate.

[0074] In this embodiment, the transmission component 230 can be a telescopic cylinder (not shown in the figure). The cylinder body of the telescopic cylinder can be fixedly connected to the inner support member 110. The telescopic end of the telescopic cylinder can be fixedly connected to the second support tube 220. When the telescopic cylinder is working, it can drive the telescopic end to extend or retract, thereby causing the second support tube 220 to move relative to the first support tube 210, thus realizing the stable and efficient operation of the telescopic structure 200.

[0075] In some embodiments, the telescopic cylinder can be a hydraulic cylinder or a pneumatic cylinder.

[0076] See Figure 1 , Figures 3 to 5 In this embodiment, the outer support structure 300 is disposed on the outside of the telescopic structure 200 and connected to the telescopic structure 200. The outer support structure 300 includes multiple outer arc segments 310. The multiple outer arc segments 310 are arranged circumferentially along the inner support member 110. The outer arc segments 310 can approach or move away from the inner peripheral wall of the cylinder 10 under the action of the telescopic structure 200, thereby preventing deformation of the cylinder 10 during the welding process and ensuring the roundness of the cylinder 10.

[0077] The outer arc segment 310 includes a first outer arc plate 311, a second outer arc plate 312, and a connecting plate 313. Multiple first outer arc plates 311 can be joined to form an annular structure coaxial with the inner ring plate 111. The first outer arc plates 311 abut against the inner circumferential wall of the cylinder. Multiple second outer arc plates 312 can be joined to form an annular structure coaxial with the inner ring plate 111. The second outer arc plates 312 are fixedly connected to the outer end of the second support cylinder. The connecting plate 313 is located between the first outer arc plate 311 and the second outer arc plate 312. The inner circumferential wall of the connecting plate 313 is fixedly connected to the second outer arc plate 312, and the outer circumferential wall of the connecting plate 313 is fixedly connected to the first outer arc plate 311, thereby improving the structural strength and reliability of the outer arc segment 310.

[0078] When the tooling is in use, the operator can rotate the transmission component 230 so that the second support tube 220 drives the outer arc segment 310 away from the inner support member 110, and finally presses the outer arc segment 310 onto the cylinder 10. This prevents deformation of the ends of the cylinder 10 when multiple cylinders 10 are being welded, ensures that the roundness of the cylinder meets the standard, and improves the product qualification rate of the cylindrical container.

[0079] See Figure 1 , Figures 3 to 5In this embodiment, a reinforcing plate 221 is detachably provided on the first side of the second outer arc plate 312 away from the connecting plate 313. The reinforcing plate 221 is fixedly connected to the outer end of the second support tube 220, and the reinforcing plate 221 is detachably connected to the second outer arc plate 312, so as to facilitate the assembly and disassembly of the telescopic structure 200 and the outer arc segment 310, facilitate the replacement of the outer arc segment 310, and improve the assembly and maintenance efficiency of the tooling.

[0080] In some embodiments, the outer end of the second support tube 220 is connected to the middle part of the outer arc segment 310 in a plane perpendicular to the vertical direction, so as to improve the structural strength of the tooling and facilitate the second support tube 220 to press the pressure onto the cylinder 10 through the outer arc segment 310.

[0081] See Figure 1 , Figures 3 to 5 In this embodiment, a limiting post 314 protrudes from the end of the outer arc segment 310. A limiting plate 315 is provided between the opposing ends of any two adjacent outer arc segments 310. A limiting hole 3151 extending along the arcuate extension direction is provided in the limiting plate 315. The limiting hole 3151 is used to accommodate the limiting posts 314 at the opposing ends of any two adjacent outer arc segments 310. When the outer arc segment 310 moves under the action of the telescopic structure 200, the two limiting posts 314 can move closer or further apart within the limiting hole 3151 to enhance the structural strength of the outer support structure 300.

[0082] In some embodiments, the limiting post 314 is located on the connecting plate 313. The limiting post 314 extends in the vertical direction. The limiting plate 315 is located on the upper and lower sides of the connecting plate 313, and is provided corresponding to two adjacent limiting posts 314.

[0083] See Figures 1 to 5 This application provides a cylindrical welding anti-deformation tooling for assisting in the welding of multiple cylinders 10 to form a cylinder.

[0084] When welding any two cylinders 10, the two tooling fixtures are moved into the two cylinders 10 respectively. The operator rotates multiple threaded rods 231, causing multiple telescopic nuts 232 to move on the threaded rods 231, thereby driving the second support tubes 220 to move radially along the cylinder 10. The multiple second support tubes 220 all move outward toward the inner peripheral wall of the cylinder 10, so that the outer arc segment 310 is pressed against the inner peripheral wall of the cylinder 10.

[0085] When the two cylinders 10 are welded, the outer arc segments 310 of the two toolings continuously abut against the inner circumferential walls of the opposite ends of the two cylinders 10, so as to effectively avoid the deformation of the ends of the cylinders 10 due to stress and other factors during welding, and effectively ensure the roundness of the cylinders.

[0086] After welding a cylinder of one size, the operator can retract the telescopic structure 200 to move the outer arc segment 310 away from the inner circumferential wall of the cylinder, thus facilitating the tooling's movement into a cylinder 10 of another size. Furthermore, the telescopic structure 200 extends into the cylinder 10 of the other size, allowing the outer arc segment 310 to abut against the cylinder of that other size. This enables the tooling to be used in the production of various cylindrical containers, improving its versatility and reducing the production cost of cylindrical containers of different sizes.

[0087] Although this application has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since this application can be embodied in many forms without departing from the spirit or essence of the utility model, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A cylindrical welding deformation preventing tool which is housed in a cylinder body of a cylindrical container for assisting in the welding forming of the cylindrical container, characterized by, The utility model relates to a kind of telescopic structure and telescopic structure of outer arc segment, including: Inner support structure; Multiple telescopic structures are arranged along the outer periphery of the inner support structure, and the telescopic structures extend along the radial direction of the cylinder body, the inner end of the telescopic structure is fixedly connected with the inner support structure, and the outer end of the telescopic structure can be telescoped relative to the inner support structure to move the outer end of the telescopic structure away from or close to the inner support structure; Outer support structure includes multiple outer arcs, and the outer arcs are arranged one by one with the telescopic structure, and the outer arcs are fixedly connected with the outer end of the telescopic structure; Wherein, the telescopic structure can drive the outer arc segment to move away from the inner support structure, so that the outer periphery wall of the outer arc segment is supported on the inner periphery wall of the cylinder body; The telescopic structure includes a first support tube, a second support tube and a transmission assembly;The inner end of the first support tube is fixedly connected with the outer periphery of the inner support structure, and the outer end of the first support tube is sleeved with the second support tube;The outer end of the second support tube is fixedly connected with the outer arc segment;The transmission assembly is connected with the first support tube and the second support tube, so as to drive the second support tube to telescope relative to the first support tube; The transmission assembly includes a threaded rod and a telescopic nut, the threaded rod extends along the extension direction of the first support tube, the inner end of the threaded rod is connected to the inner support structure, and the threaded rod can rotate around its axis;The telescopic nut is fixedly connected to the second support tube, and the telescopic nut is threadedly connected with the threaded rod;The threaded rod rotates to drive the telescopic nut to drive the second support tube to telescope relative to the first support tube; The inner support structure includes an inner support member and multiple fixing assemblies;Multiple fixing assemblies are arranged along the outer periphery of the inner support member;The opposite sides of the fixing assembly are fixedly connected with the inner support member and the inner end of the first support tube respectively;The fixing hole extending along the extension direction of the first support tube is formed in the fixing assembly;The inner end of the threaded rod is accommodated in the fixing hole;The clamping structure is arranged between the threaded rod and the inner periphery wall of the fixing hole to limit the axial movement of the threaded rod relative to the fixing assembly along the fixing hole.

2. The tooling of claim 1, wherein, The threaded rod is located in the first support tube, and the telescopic nut is located in the second support tube.

3. The tooling of claim 1, wherein, The inner end of the threaded rod is recessed to form a limiting groove; The fixing assembly includes a first fixed plate, a second fixed plate and multiple clamping plates;The first fixed plate, the clamping plate and the second fixed plate are arranged in sequence along the extension direction of the threaded rod;The first fixed plate is fixedly connected with the inner support member, and the first fixed plate is provided with a first through hole for accommodating the threaded rod;The second fixed plate is fixedly connected with the inner end of the first support tube, and the second fixed plate is provided with a second through hole for accommodating the threaded rod;Multiple clamping plates are arranged along the circumferential direction of the threaded rod, and part of the multiple clamping plates can be accommodated in the limiting groove.

4. The tooling of claim 1, wherein, The inner support is annularly arranged and is divided into a plurality of inner arc segments along the circumference of the inner support, and the opposite ends of any two adjacent inner arc segments are detachably connected.

5. The tooling of claim 3 wherein, The inner support includes an inner ring plate, the first fixed plate is fixedly connected to the outer periphery of the inner ring plate, the inner end of the threaded rod penetrates the inner ring plate, and the inner end of the threaded rod is used to be connected with an external driving element.

6. The tooling of claim 1 wherein, The transmission assembly can be a telescopic cylinder, the cylinder body and the telescopic end of the telescopic cylinder are fixedly connected with the inner support structure and the second support pipe respectively.

7. The tooling of claim 1 wherein, The end of the outer arc segment is provided with a limiting column, a limiting plate is arranged between the opposite ends of any two adjacent outer arc segments, a limiting hole extending along an arc is formed in the limiting plate, the limiting hole is used to accommodate the limiting column of the opposite ends of any two adjacent outer arc segments, and the two limiting columns can relatively approach or move away from each other in the limiting hole.

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