A rotary welding station and a welding method

Abstract

This invention relates to the field of welding fixture technology, specifically to a rotary welding workbench and welding method. The rotary welding workbench includes a base, a worktable, a ring plate, multiple first connecting parts, and multiple set screws. The top surface of the worktable is the welding working surface. A tilting plate is correspondingly provided at the bottom of the worktable. A blind hole is opened at the top of the base, and the tilting plate is rotatably disposed in the blind hole around its own axis to adjust the orientation of the welding working surface. The ring plate is detachably connected to the top of the base through multiple first connecting parts. Multiple set screws that abut against the tilting plate are also screwed onto the ring plate. The orientation of the welding working surface can be adjusted in three-dimensional space, twisting the weld of the workpiece to a suitable welding position, allowing the operator to find a suitable posture for welding operations, avoiding or reducing the working conditions of welding with an upward face, especially reducing the welding difficulty of welds in corners and crevices, making the welding process more labor-saving, and effectively improving weld quality and welding efficiency.

Description

Technical Field

[0001] This invention relates to the field of welding fixture technology, specifically to a rotary welding workbench and welding method. Background Technology

[0002] In the welding workshops of some machine processing and manufacturing plants, there are usually multiple welding workbenches. The workbenches are at a suitable height and have a good line of sight, so workers can weld a variety of structural parts on the workbenches. When welding some complex parts with slightly larger dimensions, the welders need to choose to weld with their faces tilted upwards.

[0003] For some structural components that require welding, there are top welds, vertical welds, and complex-shaped inclined welds. When using overhead welding, workers need to twist their bodies to work, which consumes a lot of energy, and the weld quality is difficult to guarantee, resulting in low welding efficiency. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a rotary welding workbench and welding method, which solves the technical problem of poor welding convenience when large parts are fixed on the workbench for welding and when there is a situation where welding is performed with the face turned upward.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the rotary welding workbench of the present invention includes a base, a workbench, a ring plate, a plurality of first connecting members, and a plurality of set screws;

[0008] The top surface of the workbench is the welding working surface; the bottom of the workbench is provided with an inclined plate, and the top of the base is provided with a blind hole. The inclined plate is rotatably disposed in the blind hole around its own axis so as to adjust the orientation of the welding working surface.

[0009] The ring plate is detachably connected to the top of the base via multiple first connectors; the ring plate is also screwed with multiple set screws that abut against the tilting plate.

[0010] Optionally, the top of the base is provided with an inclined seat; the blind hole is provided inside the inclined seat;

[0011] The blind hole and the ring plate are coaxially arranged; the bottom surface of the tilting disk abuts against the surface of the blind hole;

[0012] The ring plate and the tilting seat are detachably connected by a plurality of first connecting members. The worktable, the ring plate and the blind hole form a receiving cavity, and the tilting disk is located in the receiving cavity.

[0013] Optionally, the outer diameter of the tilting disk is between the diameter of the blind hole and the inner diameter of the ring plate.

[0014] Optionally, the distance between the bottom surface of the ring plate and the bottom surface of the blind hole is not less than the thickness of the tilting disk.

[0015] Optionally, the edge of the swashplate is configured as a plurality of teeth arranged circumferentially thereon;

[0016] The sidewall of the blind hole has a plurality of toothed grooves arranged circumferentially thereon; the plurality of gear teeth engage with the plurality of toothed grooves in a one-to-one correspondence.

[0017] Optionally, the worktable further includes a sloping-bottomed cylinder, a mounting plate, and a pair of pressing parts;

[0018] The bottom end of the inclined cylinder is connected to the inclined plate, and the top end is connected to the mounting plate; the top surface of the mounting plate is the welding working surface.

[0019] The pairs of crimping members are detachably and oppositely disposed on the mounting plate.

[0020] Optionally, the crimping member includes a pressure plate, a pad, and a second connecting member;

[0021] The bottom surface of the pad abuts against the welding working surface, and the top surface abuts against the bottom surface of the pressure plate;

[0022] The pressure plate has a first connecting hole, and the mounting plate has a second connecting hole. The second connector passes through the first connecting hole and the second connecting hole and then locks itself.

[0023] Optionally, both the first connecting hole and the second connecting hole are oblong holes;

[0024] After the second connector is unlocked, it can slide along the length of the waist-shaped hole.

[0025] Optionally, the base further includes a chassis and an inclined cylindrical top disposed on the chassis;

[0026] The blind hole is provided at the top of the inclined cylindrical tube;

[0027] In its in-situ state, the welding working surface is parallel to the bottom surface of the chassis, and the axis of the inclined top cylinder and the axis of the inclined bottom cylinder are both perpendicular to the welding working surface.

[0028] Furthermore, the present invention also provides a welding method for a rotary welding worktable, wherein the welding method for the rotary welding worktable is implemented based on the rotary welding worktable described above, and the welding method includes:

[0029] S1. Connect the workbench to the base, and install the tilting plate into the blind hole; install the ring plate onto the base through multiple first connectors; screw multiple set screws onto the ring plate, so that the multiple set screws abut against the tilting plate; fix the workpiece on the welding working surface; perform welding operation in the first posture of the welding working surface;

[0030] S2. Loosen multiple set screws, rotate the worktable around the axis of the tilting plate by a set angle; tighten multiple set screws; perform welding operation in the second posture of the welding working surface;

[0031] S3. Repeat step S2 to perform welding operations in multiple postures of the welding working surface until the welding of the workpiece is completed.

[0032] (III) Beneficial Effects

[0033] The beneficial effects of this invention are:

[0034] The tilting plate of the worktable works in conjunction with the blind hole, allowing the entire worktable to rotate on the blind hole. This adjusts the orientation of the welding surface and, consequently, the position of the weld seam on the workpiece, enhancing the operator's flexibility during welding. Because the tilting plate rotates at an angle relative to the horizontal plane, the orientation of the welding surface can be adjusted in three-dimensional space, twisting the weld seam of the workpiece to a suitable welding position. This allows the operator to find a comfortable posture for welding, avoiding or reducing the need for overhead welding, especially reducing the difficulty of welding seams in corners and crevices. The welding process is more labor-saving, effectively improving weld quality and welding efficiency.

[0035] The first connector is used to install the ring plate on top of the base to limit the tilt plate. The ring plate is equivalent to a cover plate, which can prevent the tilt plate from accidentally coming off during operation or rotation, thus improving the reliability of the rotary welding worktable.

[0036] The set screw is used to fix the tilting plate and prevent it from shifting during operation, ensuring welding accuracy. When it is necessary to adjust the weld position of the workpiece, loosen the set screw so that it contacts the tilting plate or reduces the pressure. The worktable can be rotated on the base without removing the set screw, so as to adjust the orientation of the welding working surface and thus achieve multi-angle rotation of the workpiece. The adjustment method is flexible, labor-saving and efficient. Attached Figure Description

[0037] Figure 1 This is a front view of the rotary welding workbench of the present invention;

[0038] Figure 2 This is a perspective view of the rotary welding workbench of the present invention;

[0039] Figure 3 This is a schematic diagram of the base of the present invention;

[0040] Figure 4 This is a schematic diagram of the structure of the worktable of the present invention;

[0041] Figure 5 This is a schematic diagram showing the connection between the rotary welding worktable of the present invention and the workpiece in its in-situ state.

[0042] Figure 6 This is a schematic diagram of the rotary welding worktable of the present invention in one orientation.

[0043] Figure 7 This is a schematic diagram of the rotary welding workbench of the present invention in another orientation.

[0044] Explanation of reference numerals in the attached figures

[0045] 1: Base; 2: Workbench; 3: Ring plate; 4: First connector; 5: Pressure plate; 6: Pad; 7: Second connector; 8: Set screw; 9: Workpiece; 10: Base plate; 11: Inclined top cylinder; 12: Blind hole; 13: Through hole; 14: Inclined seat; 15: Mounting plate; 16: Inclined bottom cylinder; 17: Inclined plate; 18: Waist-shaped hole. Detailed Implementation

[0046] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0048] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; "connection" can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0050] See Figures 1 to 4 This invention provides a rotary welding workbench, which includes a base 1, a workbench 2, a ring plate 3, multiple first connecting parts 4, and multiple set screws 8. The top surface of the workbench 2 is the welding working surface, and the workpiece 9 is fixed on the welding working surface for welding operations. A tilting plate 17 is correspondingly provided at the bottom of the workbench 2. A blind hole 12 is provided at the top of the base 1. The tilting plate 17 is rotatably disposed in the blind hole 12 around its own axis so as to adjust the orientation of the welding working surface. The ring plate 3 is detachably connected to the top of the base 1 through multiple first connecting parts 4. Multiple set screws 8 that abut against the tilting plate 17 are also screwed onto the ring plate 3.

[0051] In this embodiment, the bottom of the base 1 is fixed to the foundation to ensure overall stability. The tilting plate 17 of the worktable 2 cooperates with the blind hole 12, allowing the entire worktable 2 to rotate on the blind hole 12, thereby adjusting the orientation of the welding working surface and thus adjusting the position of the weld on the workpiece 9, improving the operator's flexibility during welding. Since the tilting plate 17 rotates at an angle relative to the horizontal plane, the orientation of the welding working surface can be adjusted in three-dimensional space, twisting the weld on the workpiece 9 to a suitable welding position, allowing the operator to find a suitable posture for welding operations, avoiding or reducing the need for overhead welding operations, especially reducing the welding difficulty of welds in corners and crevices, making the welding process more labor-saving, and effectively improving weld quality and welding efficiency.

[0052] The first connector 4 is used to install the ring plate 3 on the top of the base 1 to limit the tilt plate 17. The ring plate 3 is equivalent to a cover plate, which can prevent the tilt plate 17 from accidentally coming off during operation or rotation, thus improving the reliability of the rotary welding workbench.

[0053] Set screw 8 is used to fix the tilting plate 17 to prevent it from shifting during operation and to ensure welding accuracy. When it is necessary to adjust the weld position of workpiece 9, loosen set screw 8 so that it contacts and abuts against the tilting plate 17 or reduces the abutment pressure. The worktable 2 can be rotated on the base 1 without removing set screw 8, so as to adjust the orientation of the welding working surface and thus realize multi-angle rotation of workpiece 9. The adjustment method is flexible, labor-saving and efficient.

[0054] Furthermore, a tilting seat 14 is provided on the top of the base 1, and the two can be integrated into one unit; a blind hole 12 is provided inside the tilting seat 14; the blind hole 12 and the ring plate 3 are coaxially arranged, so that the worktable 2 (i.e., the inclined bottom cylinder 16) and the inner ring of the ring plate 3 maintain an equal distance, which facilitates rotation adjustment and ensures that the worktable 2 can smoothly rotate 360° on the blind hole 12 to form the required welding angles; the bottom surface of the tilting plate 17 abuts against the surface of the blind hole 12 to ensure support stability and thus ensure welding accuracy; the ring plate 3 and the tilting seat 14 are detachably connected by multiple first connecting parts 4, and the worktable 2 (i.e., the inclined bottom cylinder 16), the ring plate 3 and the blind hole 12 form a receiving cavity, and the tilting plate 17 is located in the receiving cavity. In this embodiment, both the ring plate 3 and the tilting seat 14 are flange structures, and multiple through holes 13 are correspondingly opened on the flanges; the first connecting parts 4 are bolt and nut connection structures to realize the detachable connection between the ring plate 3 and the tilting seat 14. Optionally, the ring plate 3 and the tilting seat 14 are connected by a snap-fit ​​device (not shown), as long as the connection strength and detachability requirements of the ring plate 3 and the tilting seat 14 are met. The tilting plate 17 is located inside the receiving cavity. After loosening the set screw 8, the tilting plate 17 can move inside the receiving cavity, thereby adjusting the orientation of the welding working surface. The receiving cavity provides sufficient space for the rotation of the tilting plate 17, improving the smoothness of adjustment, and also limits the tilting plate 17 to prevent it from dislodging from the receiving cavity during adjustment or operation, thus improving operational safety.

[0055] Optionally, the outer diameter of the tilting plate 17 is between the diameter of the blind hole 12 and the inner diameter of the ring plate 3. That is, there is a certain gap between the outer wall of the tilting plate 17 and the side wall of the blind hole 12. This gap provides some space for the tilting plate 17 to rotate and adjust within the receiving cavity. Compared with the method where the outer wall of the tilting plate 17 directly contacts the side wall of the blind hole 12, it can effectively avoid the situation where the adjustment is more difficult due to excessive friction, thus improving the smoothness of adjustment.

[0056] Optionally, the distance between the bottom surface of the ring plate 3 and the bottom surface of the blind hole 12 is not less than the thickness of the tilt plate 17. That is, the thickness of the tilt plate 17 is not greater than the height of the receiving cavity, so that in the unlocked state, the tilt plate 17 can move a certain distance vertically, further expanding the space of the receiving cavity, reducing the friction during the adjustment of the tilt plate 17, and further improving the smoothness of the adjustment. For the rotation adjustment of large workpieces, the labor-saving effect is even more obvious.

[0057] In one embodiment, the edge of the tilting disk 17 is constructed with multiple teeth (not shown) arranged circumferentially thereon; the sidewall of the blind hole 12 is correspondingly constructed with multiple tooth grooves (not shown) arranged circumferentially thereon; the multiple teeth engage with the multiple tooth grooves one-to-one. In this embodiment, the tilting disk 17 is constructed as a gear structure with conical teeth. Alternatively, the teeth can be constructed as arcs, and the overall shape is petal-shaped. The shape and size of the tooth grooves correspond one-to-one with the shape and size of the teeth, ultimately achieving high-precision engagement between the tilting disk 17 and the blind hole 12, suitable for applications requiring high welding precision.

[0058] Optionally, the bottom of the side wall of the blind hole 12 is constructed with gear teeth, and the top of the side wall of the blind hole 12 is reserved with a certain gap from the side wall of the tilting plate 17, so that the rotation adjustment of the worktable 2 can be completed by "lifting", "turning" and "releasing" without disassembling the ring plate 3, so that the rotary welding worktable has both high-precision positioning and convenient adjustment.

[0059] Secondly, the worktable 2 also includes a sloping-bottom cylinder 16, a mounting plate 15, and a pair of pressing components. The bottom end of the sloping-bottom cylinder 16 is connected to the tilting plate 17, and the top end is connected to the mounting plate 15. The top surface of the mounting plate 15 is the welding working surface. The pair of pressing components are detachably and oppositely arranged on the mounting plate 15. Specifically, the supporting part of the worktable 2, namely the sloping-bottom cylinder 16, is constructed as a cylindrical structure, so that the sloping-bottom cylinder 16 will not collide or interfere with other structures during rotation adjustment, focusing on the orientation adjustment of the welding working surface, thus improving the convenience and safety of adjustment. The pressing components are arranged in pairs to press and position the workpiece 9 for subsequent welding operations.

[0060] In this embodiment, workpiece 9 is an L-shaped pipe with flanges fitted at both ends. Welding is required at the connection gap between the pipe and the pair of flanges. Therefore, a flange is pressed onto the welding surface using a crimping device, allowing the welding operation to proceed. (See also...) Figure 5 The flange at the other end is suspended in the air. In this state, the bottom weld of the flange needs to be welded overhead, which is inconvenient. If the workpiece 9 is disassembled and the flange is fixed by a crimping component before welding, it will result in high manual labor intensity and low production efficiency. Based on this, the rotary welding worktable of the present invention can be rotated and adjusted after unlocking multiple set screws 8, such as... Figure 6 and Figure 7 The posture shown on the middle workbench 2 allows for the adjustment of difficult-to-weld weld seams to suitable positions before welding, significantly reducing manual labor intensity and improving production efficiency.

[0061] Furthermore, the crimping component includes a pressure plate 5, a pad 6, and a second connecting member 7. The bottom surface of the pad 6 abuts against the welding working surface, and the top surface abuts against the bottom surface of the pressure plate 5. A first connecting hole is provided on the pressure plate 5, and a second connecting hole is provided on the mounting plate 15. The second connecting member 7 passes through the first and second connecting holes and then self-locks. Specifically, the specific structure of the crimping component is adapted to the clamping point of the workpiece 9. In this embodiment, the flange on the L-shaped pipe is clamped, so the crimping component is constructed as a pressure plate. The second connecting member 7 can be a bolt and nut connection structure. The pad 6 is set on one side of the bottom surface of the pressure plate 5, and the second connecting member 7 is set in the middle of the bottom surface of the pressure plate 5. The other side of the bottom surface of the pressure plate 5 is used to press the workpiece 9. Optionally, the mounting plate 15 has multiple second connecting holes, and the crimping component can be flexibly installed in the corresponding second connecting holes, improving the flexibility of the crimping component and the mounting plate 15 in fixing the workpiece 9.

[0062] Optionally, both the first and second connecting holes are oblong holes 18; after the second connector 7 is unlocked, it can slide along the length of the oblong hole 18. Conversely, the oblong hole 18 can slide relative to the second connector 7, allowing the second connector 7 to be unlocked so that the installation position of the pressure plate 5 along the length of the oblong hole 18 can be flexibly adjusted, thereby adjusting the clamping point of the workpiece 9 and improving the adaptability to clamping different workpieces 9.

[0063] In addition, the base 1 also includes a chassis 10 and an inclined top cylinder 11 mounted on the chassis 10; the top of the inclined top cylinder 11 is provided with a blind hole 12; in its in-situ state, the welding working surface is parallel to the bottom surface of the chassis 10, and the axis of the inclined top cylinder 11 and the axis of the inclined bottom cylinder 16 are both perpendicular to the welding working surface. Specifically, the chassis 10 is installed on the foundation, and the connection strength must be ensured. The inclined top cylinder 11 is a cylindrical structure, which improves the fit between the inclined top cylinder 11 and the inclined bottom cylinder 16. During the rotation adjustment of the worktable 2, the workpiece will not collide or interfere with the inclined top cylinder 11, thus improving the adaptability to processing different workpieces 9. Figure 2 The posture shown represents the in-situ state of the rotary welding worktable. In this state, the welding working surface is parallel to the horizontal plane, facilitating the assembly and disassembly of workpiece 9 and enabling the completion of some weld seams. Furthermore, in this state, the axes of the inclined top cylinder 11 and the inclined bottom cylinder 16 are both perpendicular to the welding working surface, ensuring that the center of gravity of the rotary welding worktable is located on its central axis. This guarantees the stability of the base 1 supporting the worktable 2, resulting in greater safety when installing large workpieces.

[0064] Furthermore, the present invention also provides a welding method for a rotary welding worktable, the welding method for the rotary welding worktable being implemented based on the aforementioned rotary welding worktable, the welding method comprising:

[0065] S1. Connect the workbench 2 to the base 1 so that the tilting plate 17 is installed into the blind hole 12; install the ring plate 3 onto the base 1 through multiple first connectors 4; screw multiple set screws 8 onto the ring plate 3 so that the multiple set screws 8 abut against the tilting plate 17; fix the workpiece 9 on the welding working surface; perform welding operation in the first posture of the welding working surface.

[0066] Among them, the workpiece 9 can also be pre-installed on the workbench 2 and then installed on the base 1 together with the workbench 2; the first posture is usually in the original position, so as to facilitate the installation of the workpiece 9 and complete most of the welding operations.

[0067] S2. When it is necessary to adjust the position of the weld, loosen multiple set screws 8 and rotate the worktable 2 around the axis of the tilting plate 17 at a suitable angle; tighten multiple set screws 8; perform welding operation in the second posture of the welding working surface; in the second posture, move the weld to a non-overhead welding position, that is, the welds of the workpieces 9 fixed on the worktable 2 can be rotated to an upward and suitable welding position, which facilitates manual welding operation, reduces manual labor intensity, and improves welding accuracy and welding efficiency.

[0068] S3. Repeat step S2, performing welding operations in multiple orientations of the welding working surface until the welding of workpiece 9 is completed. Based on the required welding position of workpiece 9, the orientation of the welding working surface is flexibly adjusted, thereby flexibly adjusting the weld position, effectively reducing or eliminating the welding difficulty of welds in corners and crevices, and improving the integrity of the welding of workpiece 9.

[0069] The rotary welding worktable can rotate the workpiece 9, which is fixed on the worktable 2, to a suitable welding position. This helps to maintain a suitable welding speed, allowing various impurities and gases in the weld to have sufficient time to float out, avoiding the formation of slag inclusions and porosity in the weld, thereby improving the welding quality of the workpiece 9.

[0070] It should be understood that the above description of specific embodiments of the present invention is only for illustrating the technical approach and features of the present invention, and is intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. However, the present invention is not limited to the specific embodiments described above. All changes or modifications made within the scope of the claims of the present invention should be covered within the protection scope of the present invention.

Claims

1. A rotary welding station, characterized in that, The rotary welding workbench includes a base (1), a workbench (2), a ring plate (3), multiple first connectors (4) and multiple set screws (8); The top surface of the workbench (2) is the welding working surface; the bottom of the workbench (2) is provided with a tilting plate (17), and the top of the base (1) is provided with a blind hole (12). The tilting plate (17) is rotatably disposed in the blind hole (12) around its own axis so as to adjust the orientation of the welding working surface. The ring plate (3) is detachably connected to the top of the base (1) by a plurality of first connectors (4); the ring plate (3) is also screwed with a plurality of set screws (8) that abut against the tilting plate (17).

2. The rotary welding workbench according to claim 1, characterized in that, The base (1) is provided with an inclined seat (14) on its top; the blind hole (12) is provided inside the inclined seat (14); The blind hole (12) and the ring plate (3) are coaxially arranged; the bottom surface of the tilting disk (17) abuts against the surface of the blind hole (12); The ring plate (3) and the tilting seat (14) are detachably connected by a plurality of first connecting members (4). The worktable (2), the ring plate (3) and the blind hole (12) form a receiving cavity, and the tilting disk (17) is located in the receiving cavity.

3. The rotary welding worktable according to claim 2, characterized in that, The outer diameter of the tilting disk (17) is between the diameter of the blind hole (12) and the inner diameter of the ring plate (3).

4. The rotary welding worktable according to claim 2, characterized in that, The distance between the bottom surface of the ring plate (3) and the bottom surface of the blind hole (12) is not less than the thickness of the tilting plate (17).

5. The rotary welding worktable according to claim 1, characterized in that, The edge of the tilting disk (17) is constructed as a plurality of teeth arranged circumferentially thereon; The blind hole (12) has a plurality of toothed grooves on its sidewalls along its circumference; the plurality of gear teeth engage with the plurality of toothed grooves in a one-to-one correspondence.

6. The rotary welding worktable according to any one of claims 1-5, characterized in that, The workbench (2) also includes a sloping bottom cylinder (16), a mounting plate (15), and a pair of pressing parts; The bottom end of the inclined cylinder (16) is connected to the inclined plate (17), and the top end is connected to the mounting plate (15); the top surface of the mounting plate (15) is the welding working surface; The pair of crimping members are detachably and oppositely disposed on the mounting plate (15).

7. The rotary welding worktable according to claim 6, characterized in that, The pressing component includes a pressure plate (5), a pad (6), and a second connecting component (7); The bottom surface of the pad (6) abuts against the welding working surface, and the top surface abuts against the bottom surface of the pressure plate (5); The pressure plate (5) has a first connecting hole, and the mounting plate (15) has a second connecting hole. The second connector (7) passes through the first connecting hole and the second connecting hole and then locks itself.

8. The rotary welding worktable according to claim 7, characterized in that, Both the first connecting hole and the second connecting hole are oblong holes (18); After the second connector (7) is unlocked, it can slide along the length of the waist-shaped hole (18).

9. The rotary welding worktable according to claim 6, characterized in that, The base (1) also includes a chassis (10) and an inclined cylindrical tube (11) disposed on the chassis (10). The top of the inclined cylindrical tube (11) is provided with the blind hole (12). In its in-situ state, the welding working surface is parallel to the bottom surface of the chassis (10), and the axis of the inclined top cylinder (11) and the axis of the inclined bottom cylinder (16) are both perpendicular to the welding working surface.

10. A welding method for a rotary welding worktable, characterized in that, The welding method of the rotary welding workbench is implemented based on the rotary welding workbench according to any one of claims 1-9, and the welding method includes: S1. Connect the workbench (2) to the base (1) so that the tilting plate (17) is installed into the blind hole (12); install the ring plate (3) onto the base (1) through multiple first connectors (4); screw multiple set screws (8) onto the ring plate (3) so that the multiple set screws (8) abut against the tilting plate (17); fix the workpiece (9) on the welding working surface; perform welding operation in the first posture of the welding working surface; S2. Loosen multiple set screws (8), rotate the worktable (2) around the axis of the tilting plate (17) by a set angle; tighten multiple set screws (8); perform welding operation in the second posture of the welding working surface; S3. Repeat step S2 to perform welding operations in multiple postures of the welding working surface until the welding of the workpiece (9) is completed.

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