Cylinder welding device

Abstract

This utility model relates to the field of cylinder welding technology, and more particularly to a cylinder welding device, comprising: a base, two first clamping parts, multiple second clamping parts, and a welding gun. The first clamping parts are connected to the base, and the two first clamping parts are arranged opposite to each other. The second clamping parts are connected to the base and are distributed in a ring at equal intervals. The second clamping parts are located at the connection between the cylinder and the connecting component. A portion of the second clamping part abuts against the outer wall of the cylinder, and another portion of the second clamping part abuts against the outer wall of the connecting component. The welding gun is located on the side of the cylinder or the connecting component away from the base. This utility model, through a double clamping and fixing method in the axial and radial directions, can ensure that the cylinder and the connecting component will not be misaligned in either direction, thereby improving the welding effect between the cylinder and the connecting component.

Description

Technical Field

[0001] This utility model relates to the field of cylinder welding technology, and in particular to a cylinder welding device. Background Technology

[0002] A cylindrical or near-cylindrical structure is widely used in engineering and industry. Its ends can be closed (e.g., pressure vessels) or open (e.g., pipes). It can withstand various loads such as internal or external pressure, tension, and torque, and is a core component of many devices and structures. When connecting cylindrical structures to their connecting parts, welding is typically used. Therefore, there is an urgent need for a cylindrical welding device.

[0003] Currently, the welding method for the cylinder and connecting parts is as follows: first, the two (i.e., the cylinder and the connecting parts) are fixed in the axial direction by an axial fixing mechanism, and then welding is performed using a welding gun. However, since the cylinder and the connecting parts are only fixed in the axial direction, during the welding process, the cylinder and the connecting parts are very likely to move relative to each other in the radial direction. This will cause the cylinder and the connecting parts to misalign, which will affect the welding effect of the cylinder and the connecting parts. Utility Model Content

[0004] To address the shortcomings of the existing production technology, the applicant provides a cylindrical welding device. By improving the structure of the cylindrical welding device, the device achieves dual fixation of the cylindrical body and connecting components in both the axial and radial directions, ensuring that the cylindrical body and connecting components will not be misaligned in either direction, thereby improving the welding effect between the cylindrical body and connecting components.

[0005] The technical solution adopted in this utility model is as follows: A cylindrical welding device includes: a base, two first clamping parts, a plurality of second clamping parts, and a welding gun. The first clamping parts are connected to the base, and the two first clamping parts are arranged opposite to each other. The two first clamping parts are used together to clamp and fix the cylindrical body and the connecting component in the axial direction. The second clamping parts are connected to the base and are distributed in a ring at equal intervals. The second clamping parts are located at the connection between the cylindrical body and the connecting component. A portion of the second clamping part abuts against the outer wall of the cylindrical body, and another portion of the second clamping part abuts against the outer wall of the connecting component. The plurality of second clamping parts are used together to clamp and fix the cylindrical body and the connecting component in the radial direction. The welding gun is located on the side of the cylindrical body or the connecting component away from the base, and the welding gun is used for welding operations between the cylindrical body and the connecting component.

[0006] Therefore, by using two first clamping parts to clamp and fix the cylinder and connecting component together in the axial direction, and by using multiple second clamping parts to clamp and fix the cylinder and connecting component together in the radial direction, compared with the existing method of clamping and fixing the cylinder and connecting component only in the axial direction, this method has a simple structure and is easy to operate. By using the dual clamping and fixing method in the axial and radial directions, it can be ensured that the cylinder and connecting component will not be misaligned in either the axial or radial direction, thereby improving the welding effect of the cylinder and connecting component.

[0007] As a further improvement to the above technical solution: the second clamping part is connected to the base through the first driving mechanism.

[0008] As a further improvement to the above technical solution: the first driving mechanism includes a first driving unit, a second driving unit, and a third driving unit. The first driving unit is connected to the base, the driving end of the first driving unit is connected to the second driving unit, the telescopic end of the second driving unit is connected to the third driving unit, and the second clamping unit is connected to the telescopic end of the third driving unit via a connecting block. The first driving unit drives the second clamping unit to move along the Y-axis, the second driving unit drives the second clamping unit to move closer to or further away from the base, and the third driving unit drives the second clamping unit to move closer to or further away from the cylinder or connecting component. Therefore, the position of the second clamping unit can be adjusted through the first driving structure, allowing the second clamping unit to adapt to welding operations between different types of cylinders and connecting components.

[0009] As a further improvement to the above technical solution: the first driving part includes: a driving member, a first threaded rod and a first slider. The driving member is connected to the base. The driving end of the driving member is connected to one end of the first threaded rod. The other end of the first threaded rod is rotatably connected to the base. The first slider is threadedly connected to the first threaded rod. The second driving part is connected to the first slider.

[0010] As a further improvement to the above technical solution: the second clamping part includes a first clamping block and a second clamping block. The first clamping block is connected to the second clamping block, and both the first clamping block and the second clamping block are connected to the driving end of the first driving mechanism. The side of the first clamping block away from the driving end of the first driving mechanism is adapted to the outer wall of the cylinder, and the side of the second clamping block away from the driving end of the first driving mechanism is adapted to the outer wall of the connecting component. Therefore, through the mutual cooperation of the first clamping block and the second clamping block, during the radial clamping and fixing process, the clamping area of ​​the cylinder at the connection between the cylinder and the connecting component, and the clamping area of ​​the connecting component at the connection between the cylinder and the connecting component, can be clamped simultaneously, thereby improving the clamping effect of the connection area between the cylinder and the connecting component and further preventing relative misalignment between the cylinder and the connecting component in the radial direction.

[0011] As a further improvement to the above technical solution: a limiting groove is formed on the side of the first clamping part near the cylinder or connecting component, and the side of the cylinder away from the connecting component or the side of the connecting component away from the cylinder is inserted into the limiting groove. Thus, by forming the limiting groove, the contact between the cylinder, the connecting component, and the first clamping part is an insertion-type contact, thereby limiting the relative movement between the cylinder, the connecting component, and the first clamping part, ensuring that the cylinder and the connecting component do not misalign in the radial direction.

[0012] As a further improvement to the above technical solution, it also includes: a second driving mechanism, the second driving mechanism being connected to the base, the driving end of the second driving mechanism being connected to the first clamping part, the second driving mechanism being used to drive the first clamping part to move closer to or further away from the cylinder or connecting component, and to drive the first clamping part to rotate around the Y-axis.

[0013] As a further improvement to the above technical solution: the second driving mechanism includes a fourth driving part, a fifth driving part, and a second slider. The fourth driving part is connected to the base, the telescopic end of the fourth driving part is connected to the second slider, the fifth driving part is connected to the second slider, and the driving end of the fifth driving part is connected to the first clamping part. The first clamping part is rotatably connected to the second slider. The fourth driving part is used to drive the first clamping part to move closer to or further away from the cylinder or connecting component, and the fifth driving part is used to drive the first clamping part to rotate around the Y-axis. Thus, the fourth driving part can adjust the distance between the two first clamping parts to accommodate welding operations between different types of cylinders and connecting components; the fifth driving part can drive the cylinder and connecting component to rotate, thereby achieving a complete welding operation at the connection point of the cylinder and the connecting component.

[0014] As a further improvement to the above technical solution, it also includes: a support plate, the support plate being located on the side of the welding gun away from the base, the support plate being connected to the base via a support rod, and the welding gun being connected to the support plate via a third drive mechanism.

[0015] As a further improvement to the above technical solution: the third driving mechanism includes a sixth driving unit, a seventh driving unit, and an eighth driving unit. The sixth driving unit is connected to the support plate, its driving end is connected to the seventh driving unit, its driving end is connected to the eighth driving unit, and its telescopic end is connected to the welding gun. The sixth driving unit drives the welding gun to move along the X-axis, the seventh driving unit drives the welding gun to move along the Y-axis, and the eighth driving unit drives the welding gun to move along the Z-axis. Therefore, the position of the welding gun can be adjusted through the third driving mechanism to adapt to welding operations between different types of cylinders and connecting components.

[0016] The beneficial effects of this utility model are as follows: This invention uses two first clamping parts to clamp and fix the cylinder and connecting component from the axial direction, and multiple second clamping parts to clamp and fix the cylinder and connecting component from the radial direction. Compared with the existing method of clamping and fixing the cylinder and connecting component only from the axial direction, this method has a simple structure and is easy to operate. By using the dual clamping and fixing method in the axial and radial directions, it can ensure that the cylinder and connecting component will not be misaligned in either the axial or radial direction, thereby improving the welding effect of the cylinder and connecting component.

[0017] This utility model also has the following advantages: 1. This utility model can adjust the position of the second clamping part through the first driving structure so that the second clamping part can adapt to the welding operation between different types of cylinders and connecting parts.

[0018] 2. Through the cooperation of the first clamping block and the second clamping block, this utility model can simultaneously clamp the clamping area of ​​the cylinder at the connection between the cylinder and the connecting component and the clamping area of ​​the connecting component at the connection between the cylinder and the connecting component during the radial clamping and fixing process, so as to improve the clamping effect of the connection area between the cylinder and the connecting component and further avoid relative misalignment between the cylinder and the connecting component in the radial direction.

[0019] 3. By creating a limiting groove, this utility model ensures that the contact between the cylinder, the connecting component, and the first clamping part is an insertion contact. This limits the relative movement between the cylinder, the connecting component, and the first clamping part, ensuring that the cylinder and the connecting component will not be misaligned in the radial direction. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the cylindrical welding device of this utility model; Figure 2 This is a schematic diagram of the installation of the second clamping part and the first driving mechanism of this utility model. Figure 3 This is a schematic diagram of the installation of the first clamping part and the second driving mechanism of this utility model. Figure 4 A schematic diagram of the installation of the welding gun and the third drive mechanism of this utility model; Figure 5 This is a rendering of the effect after welding the cylinder and connecting components of this utility model; Figure 6 This is a rendering of the welding process between the cylinder and the connecting components of this utility model.

[0021] Among them: 1. Base; 2. First clamping part; 201. Limiting groove; 3. Second clamping part; 301. First clamping block; 302. Second clamping block; 4. Welding torch; 5. First drive mechanism; 501. First drive unit; 502. Second drive unit; 503. Third drive unit; 504. Connecting block; 505. Drive component; 506. First threaded rod; 507. First slider; 6. Second drive mechanism; 601. Fourth drive unit; 602. Fifth drive unit; 603. Second slider; 7. Support plate; 701. Support rod; 8. Third drive mechanism; 801. Sixth Drive Unit; 802. Seventh Drive Unit; 803. Eighth Drive Unit. Detailed Implementation

[0022] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0023] like Figures 1 to 6The diagram shows the preferred embodiment of this utility model. The cylindrical welding device of this embodiment includes: a base 1, two first clamping parts 2, multiple second clamping parts 3, and a welding gun 4. The first clamping parts 2 are connected to the base 1, and the two first clamping parts 2 are arranged opposite to each other. The two first clamping parts 2 are used together to clamp and fix the cylindrical body and the connecting component in the axial direction. The second clamping parts 3 are connected to the base 1 and are arranged in a ring with equal spacing. The second clamping parts 3 are located at the connection between the cylindrical body and the connecting component. A part of the second clamping part 3 abuts against the outer wall of the cylindrical body, and another part of the second clamping part 3 abuts against the outer wall of the connecting component. The multiple second clamping parts 3 are used together to clamp and fix the cylindrical body and the connecting component in the radial direction. The welding gun 4 is located on the side of the cylindrical body or the connecting component away from the base 1. The welding gun 4 is used for welding operations between the cylindrical body and the connecting component. Therefore, by using two first clamping parts 2 to clamp and fix the cylinder and connecting parts from the axial direction, and by using multiple second clamping parts 3 to clamp and fix the cylinder and connecting parts from the radial direction, compared with the existing method of clamping and fixing the cylinder and connecting parts only from the axial direction, this method has a simple structure and is easy to operate. By using the dual clamping and fixing method in the axial and radial directions, it can be ensured that the cylinder and connecting parts will not be misaligned in either the axial or radial direction, thereby improving the welding effect of the cylinder and connecting parts.

[0024] In other words, existing technology only clamps and fixes the cylinder and connecting component in the axial direction. The side of the cylinder away from the connecting component is relatively stable, and the side of the connecting component away from the cylinder is relatively stable. However, the side of the cylinder close to the connecting component and the side of the connecting component close to the cylinder will tend to move downward under the action of gravity, causing relative misalignment between the cylinder and the connecting component. This application, by providing a second clamping part 3 between the cylinder and the connecting component, and through the interaction of multiple second clamping parts 3, avoids relative misalignment between the cylinder and the connecting component. With the cooperation of two first clamping parts 2, this design can ensure that the cylinder and the connecting component will not misalign in either the axial or longitudinal direction, thereby improving the welding effect between the cylinder and the connecting component.

[0025] In this embodiment, the second clamping part 3 is connected to the base 1 via a first driving mechanism 5. The first driving mechanism 5 includes a first driving part 501, a second driving part 502, and a third driving part 503. The first driving part 501 is connected to the base 1, the driving end of the first driving part 501 is connected to the second driving part 502, and the telescopic end of the second driving part 502 is connected to the third driving part 503. The second clamping part 3 is connected to the telescopic end of the third driving part 503 via a connecting block 504. The first driving part 501 is used to drive the second clamping part 3 to move along the Y-axis direction, and the second driving part 502 is used to drive the second clamping part 3 to move along the Y-axis direction. The second clamping part 3 is moved closer to or further away from the base 1. The third driving part 503 is used to drive the second clamping part 3 to move closer to or further away from the cylinder or connecting component. The first driving part 501 includes a driving member 505, a first threaded rod 506, and a first slider 507. The driving member 505 is connected to the base 1. The driving end of the driving member 505 is connected to one end of the first threaded rod 506. The other end of the first threaded rod 506 is rotatably connected to the base 1. The first slider 507 is threadedly connected to the first threaded rod 506. The second driving part 502 is connected to the first slider 507. Thus, the position of the second clamping part 3 can be adjusted through the first driving structure so that the second clamping part 3 can adapt to welding operations between different types of cylinders and connecting components.

[0026] It should be noted that: 1. The direction in which the second drive unit 502 drives the second clamping unit 3 to move closer to or further away from the base 1 is: along the Z-axis direction; Second, the direction in which the third drive unit 503 drives the second clamping unit 3 to move closer to or further away from the cylinder or connecting part is along the X-axis.

[0027] For example, the second drive unit 502 uses a cylinder, the third drive unit 503 uses a cylinder, and the drive component 505 uses a motor.

[0028] In this embodiment, the second clamping part 3 includes a first clamping block 301 and a second clamping block 302. The first clamping block 301 and the second clamping block 302 are connected, and both are connected to the driving end of the first driving mechanism 5. The side of the first clamping block 301 away from the driving end of the first driving mechanism 5 is adapted to the outer wall of the cylinder, and the side of the second clamping block 302 away from the driving end of the first driving mechanism 5 is adapted to the outer wall of the connecting component. Thus, through the cooperation of the first clamping block 301 and the second clamping block 302, during the radial clamping and fixing process, the clamping area of ​​the cylinder at the connection between the cylinder and the connecting component, and the clamping area of ​​the connecting component at the connection between the cylinder and the connecting component are simultaneously clamped, thereby improving the clamping effect of the connection area between the cylinder and the connecting component and further preventing relative misalignment between the cylinder and the connecting component in the radial direction.

[0029] It should be noted that: a part of the area of ​​the second clamping part 3 refers to the area where the first clamping block 301 is located, and the other part of the area of ​​the second clamping part 3 refers to the area where the second clamping block 302 is located.

[0030] In this embodiment, a limiting groove 201 is formed on the side of the first clamping part 2 near the cylinder or the connecting component, and the side of the cylinder away from the connecting component or the side of the connecting component away from the cylinder is inserted into the limiting groove 201. Thus, by forming the limiting groove 201, the contact between the cylinder, the connecting component, and the first clamping part 2 is an insertion-type contact, thereby limiting the relative movement between the cylinder, the connecting component, and the first clamping part 2, ensuring that the cylinder and the connecting component do not misalign in the radial direction.

[0031] In this embodiment, it further includes: a second driving mechanism 6, which is connected to the base 1. The driving end of the second driving mechanism 6 is connected to the first clamping part 2. The second driving mechanism 6 is used to drive the first clamping part 2 to move closer to or further away from the cylinder or connecting component, and to drive the first clamping part 2 to rotate around the Y-axis. The second driving mechanism 6 includes: a fourth driving part 601, a fifth driving part 602, and a second slider 603. The fourth driving part 601 is connected to the base 1. The telescopic end of the fourth driving part 601 is connected to the second slider 603. The fifth driving part 602 is connected to the second slider 603. The driving end of the fifth driving part 602 is connected to the first clamping part 2. The first clamping part 2 and the second slider 603 are rotatably connected. The fourth driving part 601 is used to drive the first clamping part 2 to move closer to or further away from the cylinder or connecting component. The fifth driving part 602 is used to drive the first clamping part 2 to rotate around the Y-axis. Therefore, the fourth drive unit 601 can adjust the distance between the two first clamping units 2 to accommodate welding operations between different types of cylinders and connecting components; the fifth drive unit 602 can drive the cylinder and connecting components to rotate to achieve a full circle of welding operations at the connection between the cylinder and the connecting components.

[0032] It should be noted that the direction in which the fourth drive unit 601 drives the first clamping unit 2 to move closer to or further away from the cylinder or connecting component is along the Y-axis.

[0033] For example, the fourth drive unit 601 uses a cylinder, and the fifth drive unit 602 uses an electric motor.

[0034] In this embodiment, a support plate 7 is also included. The support plate 7 is located on the side of the welding gun 4 away from the base 1. The support plate 7 is connected to the base 1 via a support rod 701. The welding gun 4 is connected to the support plate 7 via a third drive mechanism 8. The third drive mechanism 8 includes a sixth drive unit 801, a seventh drive unit 802, and an eighth drive unit 803. The sixth drive unit 801 is connected to the support plate 7. The drive end of the sixth drive unit 801 is connected to the seventh drive unit 802. The drive end of the seventh drive unit 802 is connected to the eighth drive unit 803. The telescopic end of the eighth drive unit 803 is connected to the welding gun 4. The sixth drive unit 801 is used to drive the welding gun 4 to move along the X-axis direction. The seventh drive unit 802 is used to drive the welding gun 4 to move along the Y-axis direction. The eighth drive unit 803 is used to drive the welding gun 4 to move along the Z-axis direction. Thus, the position of the welding gun 4 can be adjusted by the third drive mechanism 8 to adapt to welding operations between different types of cylinders and connecting components.

[0035] Specifically, the structures of the sixth drive unit 801 and the seventh drive unit 802 are the same as those of the first drive unit 501.

[0036] For example, the eighth drive unit 803 uses a cylinder.

[0037] The welding process of the cylinder and the connecting component of this utility model is as follows: First (step 1), the cylinder and the connecting component to be welded are placed on the base 1, and the position of the first clamping part 2 is adjusted by the fourth driving part 601 so that the side of the cylinder away from the connecting component and the side of the connecting component away from the cylinder are respectively inserted into the limiting groove 201 of the corresponding first clamping part 2, and the side of the cylinder close to the connecting component and the side of the connecting component close to the cylinder abut against each other. Next (second step), the position of the second clamping part 3 is adjusted by the first driving mechanism 5 so that the second clamping part 3 is located at the connection between the cylinder and the connecting component, and the first clamping block 301 is in contact with the area of ​​the cylinder near the connecting component, and the second clamping block 302 is in contact with the area of ​​the connecting component near the cylinder. Then (the third step), the welding gun 4 is moved by the third drive mechanism 8 to weld the position where the cylinder and the connecting parts are to be welded (this welding position is only a part of the entire welding position (i.e., a part of the welding position of the entire circumference welding position (a section of the arc position))). Finally (step four), the cylinder and connecting component are driven to rotate along the Y-axis by the fifth drive unit 602, and step three above is repeated to complete the welding operation of the cylinder and connecting component in one revolution, thus completing the welding operation between the cylinder and connecting component.

[0038] In summary, this utility model uses two first clamping parts 2 to clamp and fix the cylinder and connecting component from the axial direction, and multiple second clamping parts 3 to clamp and fix the cylinder and connecting component from the radial direction. Compared with the existing method of clamping and fixing the cylinder and connecting component only from the axial direction, this method has a simple structure and is easy to operate. By using the dual clamping and fixing method in the axial and radial directions, it can ensure that the cylinder and connecting component will not be misaligned in either the axial or radial direction, thereby improving the welding effect of the cylinder and connecting component.

[0039] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A cylindrical welding device, characterized in that, include: Base (1), and Two first clamping parts (2) are connected to the base (1) and are arranged opposite to each other. The two first clamping parts (2) are used together to clamp the fixed cylinder and the connecting component from the axial direction. Multiple second clamping parts (3) are connected to the base (1). The second clamping parts (3) are arranged in a ring with equal spacing. The second clamping parts (3) are located at the connection between the cylinder and the connecting component. A part of the second clamping part (3) abuts against the outer wall of the cylinder, and another part of the second clamping part (3) abuts against the outer wall of the connecting component. The multiple second clamping parts (3) are used together to clamp and fix the cylinder and the connecting component from the radial direction. Welding gun (4), which is located on the side of the cylinder or connecting component away from the base (1), is used for welding operations between the cylinder and the connecting component.

2. The cylindrical welding device as described in claim 1, characterized in that: The second clamping part (3) is connected to the base (1) through the first driving mechanism (5).

3. The cylindrical welding device as described in claim 2, characterized in that: The first drive mechanism (5) includes: The system comprises a first drive unit (501), a second drive unit (502), and a third drive unit (503). The first drive unit (501) is connected to the base (1). The drive end of the first drive unit (501) is connected to the second drive unit (502). The telescopic end of the second drive unit (502) is connected to the third drive unit (503). The second clamping part (3) is connected to the telescopic end of the third drive unit (503) via a connecting block (504). The first drive unit (501) is used to drive the second clamping part (3) to move along the Y-axis. The second drive unit (502) is used to drive the second clamping part (3) to move closer to or further away from the base (1). The third drive unit (503) is used to drive the second clamping part (3) to move closer to or further away from the cylinder or connecting component.

4. The cylindrical welding apparatus as described in claim 3, characterized in that: The first drive unit (501) includes: The device comprises a drive component (505), a first threaded rod (506), and a first slider (507). The drive component (505) is connected to the base (1). The drive end of the drive component (505) is connected to one end of the first threaded rod (506). The other end of the first threaded rod (506) is rotatably connected to the base (1). The first slider (507) is threadedly connected to the first threaded rod (506). The second drive unit (502) is connected to the first slider (507).

5. The cylindrical welding device as described in claim 2, characterized in that: The second clamping part (3) includes: The first clamping block (301) and the second clamping block (302) are connected together. Both the first clamping block (301) and the second clamping block (302) are connected to the driving end of the first driving mechanism (5). The side of the first clamping block (301) away from the driving end of the first driving mechanism (5) is adapted to the outer wall of the cylinder. The side of the second clamping block (302) away from the driving end of the first driving mechanism (5) is adapted to the outer wall of the connecting component.

6. The cylinder welding apparatus as described in claim 1, characterized in that: The first clamping part (2) has a limiting groove (201) on the side near the cylinder or the connecting part, and the side of the cylinder away from the connecting part or the connecting part away from the cylinder is inserted into the limiting groove (201).

7. The cylindrical welding apparatus as described in claim 1, characterized in that: Also includes: The second driving mechanism (6) is connected to the base (1). The driving end of the second driving mechanism (6) is connected to the first clamping part (2). The second driving mechanism (6) is used to drive the first clamping part (2) to move closer to or further away from the cylinder or connecting component, and to drive the first clamping part (2) to rotate around the Y-axis.

8. The cylindrical welding apparatus as described in claim 7, characterized in that: The second drive mechanism (6) includes: The fourth drive unit (601), the fifth drive unit (602), and the second slider (603) are provided. The fourth drive unit (601) is connected to the base (1). The telescopic end of the fourth drive unit (601) is connected to the second slider (603). The fifth drive unit (602) is connected to the second slider (603). The drive end of the fifth drive unit (602) is connected to the first clamping part (2). The first clamping part (2) is rotatably connected to the second slider (603). The fourth drive unit (601) is used to drive the first clamping part (2) to move closer to or further away from the cylinder or connecting component. The fifth drive unit (602) is used to drive the first clamping part (2) to rotate around the Y-axis.

9. The cylindrical welding apparatus as described in claim 1, characterized in that: Also includes: The support plate (7) is located on the side of the welding gun (4) away from the base (1). The support plate (7) is connected to the base (1) through the support rod (701). The welding gun (4) is connected to the support plate (7) through the third drive mechanism (8).

10. The cylindrical welding apparatus as described in claim 9, characterized in that: The third drive mechanism (8) includes: The sixth drive unit (801), the seventh drive unit (802), and the eighth drive unit (803) are connected to the support plate (7). The drive end of the sixth drive unit (801) is connected to the seventh drive unit (802), the drive end of the seventh drive unit (802) is connected to the eighth drive unit (803), and the telescopic end of the eighth drive unit (803) is connected to the welding gun (4). The sixth drive unit (801) is used to drive the welding gun (4) to move along the X-axis, the seventh drive unit (802) is used to drive the welding gun (4) to move along the Y-axis, and the eighth drive unit (803) is used to drive the welding gun (4) to move along the Z-axis.

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