Chain pipe welding fixture

Abstract

The utility model relates to an anchor chain barrel welding tool belongs to the welding process equipment technical field of anchor chain barrel, anchor chain barrel welding tool includes tool main part, and tool main part is used for containing in the cylinder body of anchor chain barrel, the outer peripheral side of tool main part is equipped with a plurality of clamping sites, a plurality of clamping sites are along the equicircumference of tool main part interval arrangement, each clamping site extends along the axis direction of tool main part, and with the welding piece of anchor chain barrel one -to -one corresponding arrangement. When tool main part contains in the cylinder body inside, the outer periphery of tool main part and the inner wall of cylinder body surround and form a plurality of positioning cavities, each welding piece is contained in the corresponding positioning cavity, thereby can carry out accurate positioning to a plurality of welding pieces, its effectively avoids the welding deformation and size deviation caused by manual positioning error, realizes the quick installation and welding of anchor chain barrel, promotes construction efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of welding process equipment for anchor chain cylinders, and in particular to a welding fixture for anchor chain cylinders. Background Technology

[0002] When a ship sets sail, the anchor chain connected to the anchor must be retrieved along the path of the anchor chain canister through the anchor winch into the anchor chain box. The anchor chain canister is typically made of steel tubing approximately 30mm thick and greater than 500mm in diameter, and contains welded components inside to guide the anchor chain. These welded components are used to ensure that adjacent chain links slide in a cross-shaped arrangement during the anchor chain deployment and retrieval process, thus straightening the chain links and allowing the anchor chain to smoothly enter the drum slot of the anchor winch after passing through the anchor chain canister, and finally into the anchor chain box.

[0003] The welded components of an anchor chain cylinder must maintain strict perpendicularity and spacing accuracy to form a precise "cross" structure in space. However, the internal welded components of existing anchor chain cylinders are mostly scattered and independent, lacking a unified positioning benchmark during welding, making it difficult to guarantee the relative positional relationship and dimensional accuracy between the welded components. This not only leads to low welding efficiency and high assembly difficulty but also easily causes structural deformation and dimensional deviations during welding, thus affecting the overall performance of the anchor chain cylinder. Utility Model Content

[0004] The purpose of this invention is to solve the technical problems of low welding efficiency of anchor chain cylinders and easy deformation of the relative positional relationship and dimensional accuracy of welded parts.

[0005] To address the aforementioned technical problems, this application provides a welding fixture for anchor chain cylinders, wherein the anchor chain cylinder includes a cylinder body and a plurality of welded components disposed on the inner wall of the cylinder body. The welded components extend along the axial direction of the cylinder body, and the plurality of welded components are evenly spaced on the inner wall of the cylinder body. The anchor chain cylinder welding fixture includes: a fixture body for being housed within the cylinder body; a plurality of locking positions are provided on the outer periphery of the fixture body, the plurality of locking positions being arranged circumferentially spaced along the fixture body, each locking position extending along the axial direction of the fixture body and corresponding to a welded component; wherein, when the fixture body is housed inside the cylinder body, the outer periphery of the fixture body and the inner wall of the cylinder body enclose a plurality of positioning cavities, and each welded component is housed in a corresponding positioning cavity to define the welding position of the welded component.

[0006] In some embodiments of this application, the tooling body has four snap-fit ​​positions on its periphery, and the four snap-fit ​​positions are evenly distributed along the circumference of the tooling body; when the tooling body is housed inside the cylinder, four positioning cavities are formed inside the cylinder, spaced apart circumferentially and distributed at 90°.

[0007] In some embodiments of this application, the anchor chain cylinder welding fixture further includes multiple abutment blocks; the abutment blocks can be inserted into the gap between the fixture body and the welded part, and abut against the fixture body and the welded part to fix the welded part in a stable position within the positioning cavity formed by the fixture body and the cylinder.

[0008] In some embodiments of this application, the tooling body includes multiple clamping plates and multiple connecting plates. The multiple clamping plates are arranged at intervals along the axial direction of the tooling body, and the connecting plates are disposed between adjacent clamping plates to fix the multiple clamping plates together. Each clamping plate is provided with four circumferentially spaced interlocking interfaces. The interlocking interfaces on adjacent clamping plates are aligned with each other in the axial direction of the tooling body to form axially extending interlocking positions on the outer periphery of the tooling body.

[0009] In some embodiments of this application, the card plate includes a card plate body and four card plate arms; the four card plate arms are evenly spaced along the periphery of the card plate body, adjacent card plate arms are perpendicular to each other, and the space between adjacent card plate arms forms the card interface.

[0010] In some embodiments of this application, the sidewall of the end of the pallet arm away from the pallet body matches the shape of the inner wall of the anchor chain cylinder so that the pallet can be accommodated in the cylinder.

[0011] In some embodiments of this application, the card arm has an insertion groove on its side wall facing the card interface; the abutment block is inserted into the insertion groove and abuts against the welded part to limit the abutment of the welded part.

[0012] In some embodiments of this application, the abutment blocks have different thicknesses; by selecting abutment blocks of different thicknesses to be inserted into the insertion slot and abut against the welded part, the positioning position of the welded part in the positioning cavity can be adjusted.

[0013] In some embodiments of this application, three clamping plates are provided, and the three clamping plates are arranged at intervals along the axial direction of the tooling body; four connecting plates are provided between adjacent clamping plates, and the two ends of the connecting plates are respectively connected to the clamping plate arms of the adjacent clamping plates.

[0014] In some embodiments of this application, the connecting plate includes a first plate and a second plate; the first plate and the second plate are connected at an angle so that the cross-section of the connecting plate is V-shaped.

[0015] As can be seen from the above technical solution, the beneficial effects of this utility model are as follows: This application provides a welding fixture for anchor chain cylinders, used for welding anchor chain cylinders. The welding fixture includes a fixture body with multiple axially extending snap-fit ​​positions formed on the outer periphery of the fixture body. Each snap-fit ​​position forms an independent positioning cavity with the inner wall of the cylinder, thereby enabling accurate positioning of multiple welded parts. The anchor chain cylinder welding fixture not only ensures the uniform spatial distribution and perpendicular relationship of each welded part, significantly improving welding accuracy and assembly consistency, but also effectively avoids welding deformation and dimensional deviations caused by manual positioning errors. This allows for rapid installation and welding of anchor chain cylinders, improving construction efficiency, reducing rework rates, and ensuring the accuracy of the internal structure of the anchor chain cylinder. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of the anchor chain cylinder for attaching and retracting the anchor chain.

[0017] Figure 2 for Figure 1 A perspective three-dimensional structural diagram of the middle anchor chain cylinder.

[0018] Figure 3 for Figure 2 A three-dimensional structural diagram of the welded components inside the middle anchor chain cylinder.

[0019] Figure 4 A three-dimensional structural diagram of the welding fixture for positioning the welding components of the anchor chain cylinder.

[0020] Figure 5 A three-dimensional structural diagram showing the welded component housed in the snap-fit ​​position of the welding body.

[0021] Figure 6 for Figure 4 A top view of the positioning and welding components of the welding fixture for the middle anchor chain cylinder.

[0022] Figure 7 A three-dimensional structural diagram of the main body of the welding fixture for the anchor chain cylinder.

[0023] Figure 8 for Figure 7 A three-dimensional structural diagram of the main body of the tooling.

[0024] Figure 9 for Figure 8 A top view of the structure of the middle card plate.

[0025] The annotations in the attached figures are explained as follows: 100. Anchor chain barrel welding fixture; 110. Fixture body; 111. Clip-on position; 112. Clip plate; 1121. Clip plate body; 1122. Clip plate arm; 1123. Clip interface; 1124. Insertion groove; 113. Connecting plate; 1131. First plate; 1132. Second plate; 120. Abutment block; 200. Anchor chain barrel; 210. Barrel body; 220. Welded component; 300. Anchor chain. Detailed Implementation

[0026] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0027] In the description of this application, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back, etc.) are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the mechanism or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0028] 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 technical features indicated. Thus, a feature defined as "first" or "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.

[0029] To address the technical problem of traditional anchor chain barrels lacking a unified positioning reference during welding, making it difficult to guarantee the relative positional relationships and dimensional accuracy between welded components, this embodiment provides an anchor chain barrel welding fixture for positioning the welded components inside the anchor chain barrel to facilitate welding.

[0030] Please see Figures 1 to 3 In this embodiment, the anchor chain cylinder 200 includes a cylinder body 210 and a plurality of welded components 220 disposed on the inner wall of the cylinder body 210. The welded components 220 extend along the axial direction of the cylinder body 210, and the plurality of welded components 220 are evenly spaced on the inner wall of the cylinder body 210.

[0031] Specifically, the anchor chain cylinder 200 includes a cylinder body 210 and four welded components 220. The cylinder body 210 is a cylindrical steel structure with open ends, usually made of 30mm thick steel plate, and its diameter is generally greater than 500mm, used for the anchor chain 300 to pass through during the extension and retraction process.

[0032] like Figure 1 As shown, when the ship drops anchor, the anchor winch releases the anchor chain 300, which slides out along the axis of the cylinder 210 and pulls the anchor down to the seabed. When retrieving anchor, the anchor winch reverses and tightens the anchor chain 300, which is then retrieved into the anchor chain 300 box via the anchor chain cylinder 200. To ensure that the links of the anchor chain 300 are arranged in a "cross" pattern during deployment and retrieval, so as to smoothly engage with the drum groove of the anchor winch, multiple welded components 220 are spaced circumferentially on the inner wall of the cylinder 210.

[0033] like Figure 2 and Figure 3 As shown, the cross-section of welded component 220 is a fan-shaped structure with a circumferential angle of 90°, extending along the axial direction of cylinder 210. Adjacent welded components 220 are arranged perpendicularly to each other, thus forming a "cross" structure inside cylinder 210 to guide the anchor chain 300 to slide crosswise as it passes through. Because these welded components 220 are dispersed and unconnected, their relative positions require high precision. Traditional manual positioning welding is insufficient to guarantee welding assembly accuracy and is prone to dimensional deviations.

[0034] Therefore, please refer to Figures 4 to 9 This embodiment provides an anchor chain cylinder welding fixture 100 for welding and fixing the anchor chain cylinder 200.

[0035] The anchor chain cylinder welding fixture 100 includes a fixture body 110, which is housed within the cylinder body 210. The outer periphery of the fixture body 110 is provided with multiple locking positions 111, which are spaced apart circumferentially along the fixture body 110. Each locking position 111 extends along the axial direction of the fixture body 110 and corresponds one-to-one with the welded component 220.

[0036] When the tooling body 110 is housed inside the cylinder 210, the outer periphery of the tooling body 110 and the inner wall of the cylinder 210 form multiple positioning cavities, and each welding part 220 is housed in the corresponding positioning cavity to limit the welding position of the welding part 220.

[0037] Specifically, the outer diameter of the tooling body 110 is slightly smaller than the inner diameter of the cylinder 210, so that the tooling body 110 can be accommodated inside the cylinder 210. For example... Figure 7As shown, four snap-fit ​​positions 111 can be provided on the outer periphery of the tooling body 110. The four snap-fit ​​positions 111 are arranged at intervals along the circumference of the tooling body 110 and extend along the axial direction of the tooling body 110. Adjacent snap-fit ​​positions 111 are spaced 90° apart from each other, and each snap-fit ​​position 111 corresponds to the welding part 220 in space.

[0038] When the tooling body 110 is housed inside the cylinder 210, four circumferentially spaced and 90°-distributed positioning cavities are formed inside the cylinder 210, and the four welded parts 220 can be placed in their respective positioning cavities. The position of the welded parts 220 is defined by the tooling body 110, thereby maintaining the spacing and perpendicularity between the welded parts 220 during the welding process, ensuring the formation of a standard "cross" structure inside the cylinder 210.

[0039] By using the anchor chain welding fixture 100 to weld the anchor chain cylinder 200, welding accuracy and construction efficiency can be significantly improved. The fixture body 110 achieves simultaneous positioning of the four welded parts 220 through abutment and limiting mechanism, avoiding the accumulation of errors caused by traditional manual adjustment of individual parts. Practice has proven that this fixture can control the dimensional tolerance of the "cross-shaped opening" inside the cylinder 210 within ±1mm, which is significantly better than the level of traditional welding accuracy.

[0040] Of course, in other instances, when welding anchor chain cylinder 200 structures of other shapes, the number and shape of the snap-fit ​​positions 111 on the outside of the tooling body 110 can be adjusted according to the number and shape of the welded parts 220 inside the anchor chain cylinder 200 to adapt to the welding of the internal structure of the cylinder 210 with different structures.

[0041] Please see Figure 4 In some embodiments, the anchor chain cylinder welding fixture 100 further includes a plurality of abutment blocks 120. The abutment blocks 120 can be inserted into the gap between the fixture body 110 and the corresponding welded part 220, and abut against the fixture body 110 and the welded part 220 to fix the welded part 220 in a stable position within the positioning cavity formed by the fixture body 110 and the cylinder 210.

[0042] Specifically, such as Figure 4 As shown, during the assembly process, a certain gap is reserved between the tooling body 110 and the welded part 220. The abutment block 120 can be inserted into this gap and play a temporary supporting role, so that the welded part 220 is stably positioned before welding. After welding is completed and cooled, the abutment block 120 can be pulled out to form a separation gap between the tooling body 110 and the welded part 220, so that the tooling body 110 can be smoothly moved out of the cylinder 210.

[0043] The abutment block 120 is used to abut and limit the position, which not only plays an auxiliary positioning role, but also greatly improves the disassembly efficiency of the tooling body 110 and avoids the tooling body 110 from getting stuck due to welding deformation.

[0044] Of course, in some other instances, the abutment block 120 may not be set up, and the snap-fit ​​position 111 on the tooling body 110 may be used directly to position the welded part 220.

[0045] Please see Figure 7 In some embodiments, the tooling body 110 includes a plurality of clamping plates 112 and a plurality of connecting plates 113. The plurality of clamping plates 112 are arranged at intervals along the axial direction of the tooling body 110, and the connecting plates 113 are disposed between adjacent clamping plates 112 to fix the plurality of clamping plates 112 together.

[0046] Each card plate 112 is provided with four card interfaces 1123 spaced apart from each other in the circumferential direction. The card interfaces 1123 on adjacent card plates 112 are aligned with each other in the axial direction of the tooling body 110 to form a carding position 111 extending axially on the outer periphery of the tooling body 110.

[0047] Specifically, the tooling body 110 is composed of several clamping plates 112 and connecting plates 113. The multiple clamping plates 112 are arranged sequentially at intervals along the axial direction of the tooling body 110, and adjacent clamping plates 112 are fixedly connected by connecting plates 113 to form an overall skeleton structure. The tooling body 110 with skeleton structure is lighter and easier to process and transport.

[0048] Each clamping plate 112 has four clamping interfaces 1123 evenly arranged circumferentially on its outer edge. The four clamping interfaces 1123 are distributed at 90° intervals to define the vertical direction and spacing of multiple welded parts 220 inside the cylinder 210. The clamping interfaces 1123 on adjacent clamping plates 112 are aligned with each other in the axial direction, so that four axially extending clamping positions 111 are formed on the outer periphery of the tooling body 110.

[0049] After the tooling body 110 is installed inside the cylinder 210, the snap-fit ​​position 111 forms four independent positioning cavities inside the cylinder 210, which are used to accommodate and position different welding parts 220 respectively. During installation, the four welding parts 220 can be snapped into the snap-fit ​​position 111 formed by the snap-fit ​​interface 1123 to ensure that they are evenly spaced in the circumferential direction of the cylinder 210.

[0050] Please see Figure 8 and Figure 9In some embodiments, the card plate 112 includes a card plate body 1121 and four card plate arms 1122. The four card plate arms 1122 are evenly spaced along the periphery of the card plate body 1121, adjacent card plate arms 1122 are perpendicular to each other, and the space between adjacent card plate arms 1122 forms the card interface 1123.

[0051] Specifically, the clamping plate 112 can be processed from a thick steel plate and has an overall cross-shaped structure, including a central clamping plate body 1121 and four clamping plate arms 1122 evenly distributed around the circumference. The clamping plate arms 1122 are arranged perpendicularly to each other, and a right-angle area is formed between adjacent clamping plate arms 1122 to form a clamping interface 1123 for limiting the welding part 220.

[0052] like Figure 8 and Figure 9 As shown, the side wall of each clamping arm 1122 away from the clamping body 1121 is machined into an arc-shaped structure that matches the inner wall of the anchor chain cylinder 200. The radius of this arc is slightly smaller than the inner diameter of the anchor chain cylinder 200, so that the clamping plate 112 can be smoothly inserted into the cylinder 210 and fit against the inner wall of the cylinder 210. After the clamping plate 112 is inserted into the cylinder 210, it can form a small positioning preload, thereby ensuring that the tooling body 110 is initially stable inside the cylinder 210, so as to facilitate the positioning of the subsequent welded parts 220.

[0053] Please see Figure 8 and Figure 9 In some embodiments, the card arm 1122 has an insertion groove 1124 on its side wall facing the card interface 1123. The abutment block 120 can be inserted into the insertion groove 1124 and abut against the welded part 220 to limit the abutment of the welded part 220.

[0054] Specifically, the side wall of the card arm 1122 facing the card interface 1123 is machined with a plurality of axially extending insertion slots 1124, the width of which matches the width of the abutment block 120. The inner wall of the insertion slot 1124 may be precision machined to ensure that the abutment block 120 can slide in smoothly and fit tightly when inserted.

[0055] In use, the abutment block 120 can be inserted into the insertion groove 1124 along the axis of the cylinder 210. The insertion groove 1124 guides and limits the abutment block 120, preventing it from shaking or falling off after insertion. The other side of the abutment block 120 abuts against the outer wall of the workpiece 220 to be welded, forming a stable abutment support between the tooling body 110 and the workpiece 220, ensuring that the workpiece 220 remains stable within the positioning cavity.

[0056] In some embodiments, the abutment block 120 has different thicknesses; by selecting abutment blocks 120 of different thicknesses to be inserted into the insertion groove 1124 and abut against the welded part 220, the positioning position of the welded part 220 in the positioning cavity can be adjusted.

[0057] Specifically, in order to accommodate the welding requirements of anchor chain cylinders 200 of different specifications, the abutment block 120 is designed to have various thicknesses, such as 6mm, 8mm, and 10mm. The abutment block 120 of different thicknesses can be flexibly selected according to the installation gap of the welded part 220 in the cylinder 210.

[0058] In practical work, when there is a machining error in the inner diameter of the cylinder 210, the operator can select an abutment block 120 of appropriate thickness according to the measured gap size and insert it into the insertion slot 1124 on the clamping arm 1122. A thicker abutment block 120 will cause the welded part 220 to shift slightly in the opposite direction after insertion, thereby achieving fine-tuning and positioning of the welded part 220; conversely, a thinner abutment block 120 will cause the welded part 220 to shift in the positive direction toward the abutment block 120 after insertion.

[0059] The position of the welded part 220 within the positioning cavity can be finely adjusted by inserting abutment blocks 120 of different thicknesses into the two abutment surfaces of the welded part 220. For example, the operator can select an abutment block 120 with a thickness of 10 mm in the corresponding direction, and an abutment block 120 with a thickness of 6 mm on the opposite side, so that the welded part 220 is precisely adjusted to the center position within the positioning cavity.

[0060] By setting abutment blocks 120 of different thicknesses, it is possible to compensate for and correct the installation deviation of the welded parts 220 without changing the main tooling body 110, which significantly improves the versatility of the anchor chain cylinder welding tooling 100 and further improves the accuracy of welding positioning.

[0061] Please see Figure 7 In some embodiments, three clamping plates 112 are provided, and the three clamping plates 112 are arranged at intervals along the axial direction of the tooling body 110. Four connecting plates 113 are provided between adjacent clamping plates 112, and the two ends of the connecting plates 113 are respectively connected to the clamping arms 1122 of the adjacent clamping plates 112.

[0062] Specifically, the tooling body 110 adopts a three-layer clamping plate 112 structure, that is, three clamping plates 112 are arranged at intervals along the axial direction of the tooling body 110. Adjacent clamping plates 112 are fixedly connected by four connecting plates 113 evenly distributed circumferentially. The two ends of each connecting plate 113 are welded to the corresponding clamping plate arm 1122 of the adjacent clamping plate 112, so that the three clamping plates 112 form a stable overall frame structure.

[0063] The number of clamping plates 112 is controlled to three, which effectively reduces weight while ensuring the overall rigidity of the tooling body 110. The four connecting plates 113 form a load-bearing frame similar to a space truss, allowing the tooling to distribute support force evenly within the cylinder 210 and preventing deformation during welding. Compared to a single solid support plate structure, this embodiment significantly reduces material usage and manufacturing costs by employing a three-layer clamping plate 112 structure. The overall weight of the tooling is reduced by approximately 30% to 40%, facilitating manual handling and loading / unloading operations within the cylinder.

[0064] Please see Figure 7 In some embodiments, the connecting plate 113 includes a first plate body 1131 and a second plate body 1132. The first plate body 1131 and the second plate body 1132 are connected at an included angle so that the cross-section of the connecting plate 113 is V-shaped.

[0065] The angle between the first plate 1131 and the second plate 1132 is typically set between 60° and 120°, and can be adjusted according to the diameter of the anchor chain cylinder 200 and the stress requirements. The connecting plate 113 has a V-shaped cross-section, forming a folded structure with spatial stiffness, which can significantly improve the bending and torsional resistance of the connecting plate 113. Compared with the traditional flat plate connection structure, it can significantly improve its structural strength while ensuring the lightweight of the tooling.

[0066] In summary, this application provides an anchor chain cylinder welding fixture 100 for welding anchor chain cylinders 200. The anchor chain cylinder welding fixture 100 includes a fixture body 110, with multiple axially extending snap-fit ​​positions 111 formed on the outer periphery of the fixture body 110. Each snap-fit ​​position 111 forms an independent positioning cavity with the inner wall of the cylinder body 210, thereby enabling accurate positioning of multiple welded parts 220. The anchor chain cylinder welding fixture 100 not only ensures the uniform spatial distribution and perpendicular relationship of each welded part 220, significantly improving welding accuracy and assembly consistency, but also effectively avoids welding deformation and dimensional deviations caused by manual positioning errors; thus enabling rapid installation and welding of the anchor chain cylinder 200, improving construction efficiency, reducing rework rate, and ensuring the accuracy of the internal structure of the anchor chain cylinder 200.

[0067] Although the present invention 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 the present invention can be embodied in many forms without departing from the spirit or essence of the invention, 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 welding fixture for anchor chain cylinders, used for welding anchor chain cylinders, the anchor chain cylinder comprising a cylinder body and a plurality of welded components disposed on the inner wall of the cylinder body, the welded components extending along the axial direction of the cylinder body, and the plurality of welded components being evenly spaced on the inner wall of the cylinder body; characterized in that, The anchor chain cylinder welding fixture includes: The tooling body is used to be housed in the cylinder; the outer periphery of the tooling body is provided with multiple snap-fit ​​positions, the multiple snap-fit ​​positions are arranged at intervals along the circumference of the tooling body, each snap-fit ​​position extends along the axial direction of the tooling body and is set one-to-one with the welded parts; When the tooling body is housed inside the cylinder, the outer periphery of the tooling body and the inner wall of the cylinder form multiple positioning cavities, and each of the welded parts is housed in a corresponding positioning cavity to define the welding position of the welded parts.

2. The anchor chain barrel welding fixture according to claim 1, characterized in that, The tooling body has four snap-fit ​​positions on its periphery, and the four snap-fit ​​positions are evenly distributed along the circumference of the tooling body; when the tooling body is housed inside the cylinder, four positioning cavities are formed inside the cylinder at circumferential intervals and distributed at 90°.

3. The anchor chain barrel welding fixture according to claim 1, characterized in that, The anchor chain cylinder welding fixture also includes multiple abutment blocks; the abutment blocks can be inserted into the gap between the fixture body and the welded part, and abut against the fixture body and the welded part to fix the welded part in a stable position within the positioning cavity formed by the fixture body and the cylinder.

4. The anchor chain barrel welding fixture according to claim 3, characterized in that, The tooling body includes multiple clamping plates and multiple connecting plates. The multiple clamping plates are arranged at intervals along the axial direction of the tooling body, and the connecting plates are disposed between adjacent clamping plates to fix the multiple clamping plates together. Each of the card plates is provided with four card interfaces spaced apart from each other in the circumferential direction. The card interfaces on adjacent card plates are aligned with each other in the axial direction of the tooling body to form axially extending snap positions on the outer periphery of the tooling body.

5. The anchor chain barrel welding fixture according to claim 4, characterized in that, The card plate includes a card plate body and four card plate arms; the four card plate arms are evenly spaced along the periphery of the card plate body, adjacent card plate arms are perpendicular to each other, and the interval area between adjacent card plate arms forms the card interface.

6. The anchor chain barrel welding fixture according to claim 5, characterized in that, The side wall of the pallet arm away from the pallet body matches the shape of the inner wall of the anchor chain cylinder so that the pallet can be accommodated in the cylinder.

7. The anchor chain barrel welding fixture according to claim 5, characterized in that, The card arm has an insertion groove on its side wall facing the card interface; the abutment block is inserted into the insertion groove and abuts against the welded part to limit the abutment of the welded part.

8. The anchor chain barrel welding fixture according to claim 7, characterized in that, The abutment blocks have different thicknesses; by selecting abutment blocks of different thicknesses to insert into the insertion slot and abut against the welded part, the positioning position of the welded part in the positioning cavity can be adjusted.

9. The anchor chain barrel welding fixture according to claim 5, characterized in that, The fixture has three clamping plates, which are spaced apart along the axis of the main body of the tooling. Four connecting plates are provided between adjacent clamping plates, and the two ends of the connecting plates are respectively connected to the clamping plate arms of the adjacent clamping plates.

10. The anchor chain barrel welding fixture according to claim 4, characterized in that, The connecting plate includes a first plate and a second plate; the first plate and the second plate are connected at an angle so that the cross-section of the connecting plate is V-shaped.

Images