Marine red copper pipe welding tool

Abstract

The invention relates to the technical field of ships, and discloses a marine red copper pipe welding tool which has a first direction and a second direction which are perpendicular to each other. The marine red copper pipe welding tool comprises a support, a height adjusting mechanism, a welding platform and a supporting platform. The supporting platform is arranged on one side of the support in the first direction. The height adjusting mechanism is arranged on the support, the welding platform is arranged on the height adjusting mechanism, and the height adjusting mechanism is used for driving the welding platform to move in the first direction. The welding platform is provided with a supporting plane and a strip-shaped hole, the supporting plane is arranged at the top of the welding platform in the first direction and is perpendicular to the first direction, the strip-shaped hole penetrates through the welding platform in the first direction, and the length direction of the strip-shaped hole is in the second direction. The end, in the second direction, of the strip-shaped hole extends to the end face of the end, in the second direction, of the welding platform, and supporting planes are arranged on the two sides, in the first direction, of the strip-shaped hole correspondingly.

Description

Technical Field

[0001] The invention relates to the technical field of ships, in particular to a welding tool for marine copper tubes. Background Art

[0002] At present, in shipbuilding, copper pipe is widely used in marine freshwater system, and the pipeline design of this type is more complicated, and usually accessories such as loose flanges and through-tank webs are used in large quantities. The production of this system pipeline usually requires two people to cooperate with the operation, and manual assembly and flame brazing are performed. Due to the need for the manual stabilization of the relative position of the web and the copper pipe by an auxiliary staff in the welding process, and the higher ambient temperature during the flame brazing process, certain danger has been brought to the auxiliary staff. And when welding the webs exceeding two copper pipes, it is necessary to use shims to assist the webs and loose flanges to be leveled according to the size marked in the drawings. Whether it is assembly or welding operation, it is quite complicated. Because the pipe is short, the shape is irregular, and the materials are different (the fusion welding of the iron of the web and the copper of the copper pipe), the stability of the pipe fittings will be kept in the production, and the requirement of the drawings will be met again. It is also necessary to take into account the safety of the operating personnel (burning accidents are easily caused when operating beside the flame). This is the reason that causes the copper pipe production efficiency to be slow and the labor cost to be high.

[0003] Therefore, a kind of marine copper tube welding tool is in urgent need of, to solve the above problems. Summary of the Invention

[0004] The invention aims to provide a marine copper tube welding tool, which improves the welding efficiency of the copper tube and the web and reduces the safety risks during the welding process.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A marine copper tube welding tool has a first direction and a second direction perpendicular to each other, comprising a bracket, a height adjustment mechanism, a welding platform and a support platform, wherein the first direction is the height direction of the bracket;

[0007] The support platform is arranged on one side of the bracket along the first direction;

[0008] The height adjustment mechanism is provided on the bracket, the welding platform is provided on the height adjustment mechanism, and the height adjustment mechanism is used to drive the welding platform to move along the first direction;

[0009] A supporting plane and a strip hole are provided on the welding platform. The supporting plane is provided at the top of the welding platform along the first direction and is perpendicular to the first direction. The strip hole passes through the welding platform along the first direction. The length direction of the strip hole is along the second direction. One end of the strip hole along the second direction extends to the end surface of one end of the welding platform along the second direction. The supporting plane is provided on both sides of the strip hole along the first direction.

[0010] As an improvement of the above technical solution, the welding platform includes a supporting part and a connecting part, one end of the connecting part is connected to the height adjustment mechanism, the length direction of the supporting part is along the second direction, one end of the supporting part in the length direction is fixedly arranged at the other end of the connecting part, the strip hole is arranged on the supporting part, and one end of the strip hole along the second direction extends to the end surface of the other end of the length direction of the supporting part.

[0011] As an improvement of the above technical solution, the height adjustment mechanism includes a main body, a driving assembly and a lifting member;

[0012] The welding platform is fixedly arranged on the lifting member;

[0013] The length direction of the main body is along the first direction, the lifting member is sleeved on the main body, the driving component is arranged on the main body and connected to the lifting member, and the driving component is used to drive the lifting member to move along the main body.

[0014] As an improvement of the above technical solution, the driving assembly includes a screw, a gear set, a transmission nut and a driving rod;

[0015] The screw is rotatably mounted on the main body, and the axial direction of the screw is along the first direction;

[0016] The transmission nut is threadedly connected to the screw, and the lifting member is fixedly connected to the transmission nut;

[0017] The driving rod is connected to the input end of the gear set, the output end of the gear set is connected to the screw rod, and the transmission rod can drive the screw rod to rotate relative to the main body through the gear set.

[0018] As an improvement to the above technical solution, the gear set includes a first bevel gear and a second bevel gear;

[0019] The first bevel gear is rotatably arranged on the main body, the rotation axis of the first bevel gear is perpendicular to the first direction, the second bevel gear is sleeved on the screw and fixedly connected to the screw, the rotation axis of the second bevel gear is colinear with the axis of the screw, and the first bevel gear is meshed with the second bevel gear.

[0020] As an improvement of the above technical solution, the driving assembly further includes a driving handwheel, and one end of the driving rod away from the first bevel gear is fixedly connected to the driving handwheel.

[0021] As an improvement of the above technical solution, the main body includes a guide support rod, an upper connecting seat and a lower connecting seat. The length direction of the guide support rod is along the first direction. The lifting member is sleeved on the guide support rod. The upper connecting seat is fixedly arranged on the upper part of the guide support rod. The lower connecting seat is fixedly arranged on the lower part of the guide support rod. The screw is arranged on one side of the length direction of the guide support rod, and the top end is rotatably connected to the upper connecting seat, and the bottom end is rotatably connected to the lower connecting seat.

[0022] As an improvement of the above technical solution, it also includes a height scale, which is arranged on the height adjustment mechanism.

[0023] As an improvement of the above technical solution, the bracket includes a support seat and a rotating member, the rotating member is rotatably arranged on the top of the support seat, and the height adjustment mechanism is fixedly arranged on the rotating member.

[0024] As an improvement of the above technical solution, the support base includes a bottom plate and a support tube, and the bottom end of the support tube is fixedly arranged on the bottom plate;

[0025] The top end of the rotating member is fixedly arranged on the bottom end of the guide support rod, and the bottom end is inserted into the support tube.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The marine copper tube welding fixture of the present invention features a height adjustment mechanism for adjusting the height of the welding platform, thereby adjusting the distance between the welding platform and the support platform. The support plane of the welding platform supports the web, and the copper tube can extend toward the support platform through the connection holes on the web and the strip holes in the welding platform. One end of the strip hole extending in a second direction extends to the end surface of the welding platform along the second direction. This facilitates removal of the connected copper tube and web from the end of the strip hole extending to the end surface of the welding platform after welding is completed.

[0028] When welding a copper tube to a web, according to the length of the copper tube and the designed welding position of the copper tube and the web, the height of the welding platform is adjusted so that the web is placed on the supporting plane of the welding platform. After the copper tube passes through the connecting hole on the web and the bottom end abuts the top surface of the supporting platform, the relative position of the copper tube and the web is exactly at the designed welding position of the copper tube and the web. At this time, welding between the copper tube and the web can be carried out. When welding multiple copper tubes to the same web, the distance between the welding platform and the supporting platform is adjusted according to the length of the longest copper tube among the multiple copper tubes and the designed welding position of the longest copper tube and the web, so that the web is placed on the supporting plane of the welding platform. After the longest copper tube passes through the connecting hole on the web and the bottom end abuts against the top of the supporting platform, the relative position of the longest copper tube and the web is exactly located at the designed welding position of the longest copper tube and the web. Then, other shorter copper tubes are passed through the connecting holes on the web, and the height of the shorter copper tubes is adjusted by arranging gaskets between the shorter copper tubes and the supporting platform so that the relative positions of the other shorter copper tubes and the web are exactly located at the designed welding position. Finally, welding of each copper tube to the web is performed.

[0029] The marine copper tube welding tool of the present invention can position the copper tube and the web at a relatively fast speed, thereby improving the positioning efficiency of the copper tube and the web. Moreover, when welding the copper tube and the web, the web is supported by the welding platform, and the copper tube is supported by the web and the supporting platform in cooperation. There is no need for auxiliary personnel to manually stabilize the relative position of the web and the copper tube, thus avoiding burns to auxiliary personnel during the welding process, thereby reducing the safety risks during the welding process and improving the welding efficiency while ensuring the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a partial cross-sectional view of a marine copper tube welding tool provided by an embodiment of the present invention;

[0031] Figure 2 This is a partial cross-sectional view of a portion of the structure of a marine copper tube welding tool provided by an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of a partial structure of a welding platform of a marine copper tube welding tool provided by an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of a partial structure of a drive assembly of a marine copper tube welding tool provided by an embodiment of the present invention;

[0034] Figure 5 The figure is a schematic structural diagram of a bracket of a marine copper tube welding tool provided by an embodiment of the present invention.

[0035] In the picture:

[0036] Z, first direction; X, second direction; Y, third direction;

[0037] 1. Bracket; 11. Support seat; 111. Bottom plate; 112. Support tube; 12. Rotating member;

[0038] 2. Height adjustment mechanism;

[0039] 21. Main body; 211. Guide support rod; 212. Upper connecting seat; 2121. First bearing; 213. Lower connecting seat; 2131. Second bearing;

[0040] 22. Drive assembly; 221. Screw; 222. Gear set; 2221. First bevel gear; 2222. Second bevel gear; 223. Drive nut; 23. Lifting element; 24. Drive handwheel;

[0041] 3. Welding platform; 31. Support plane; 32. Strip hole; 33. Support part; 34. Connecting part;

[0042] 4. Height scale. DETAILED DESCRIPTION

[0043] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0044] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0045] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0046] In the description of this embodiment, terms such as "upper," "lower," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0047] like Figure 1-Figure 5 As shown, this embodiment provides a marine copper tube welding fixture for welding marine copper tubes to webs. The marine copper tube welding fixture has a first direction Z, a second direction X, and a third direction Y, all of which are perpendicular to each other. The marine copper tube welding fixture includes a bracket 1, a height adjustment mechanism 2, and a welding platform 3. The first direction Z is the height direction of the bracket 1. The support platform is disposed on one side of the bracket 1 along the first direction Z. The height adjustment mechanism 2 is disposed on the bracket 1, and the welding platform 3 is disposed on the height adjustment mechanism 2. The height adjustment mechanism 2 is used to drive the welding platform 3 to move along the first direction Z. The welding platform 3 is provided with a support plane 31 and a strip hole 32. The support plane 31 is provided at the top of the welding platform 3 along the first direction Z and is perpendicular to the first direction Z. The strip hole 32 penetrates the welding platform 3 along the first direction Z. The length of the strip hole 32 is along the second direction X. One end of the strip hole 32 along the second direction X extends to the end surface of the welding platform 3 along the second direction X. The support plane 31 is provided on both sides of the strip hole 32 along the first direction Z. In this embodiment, the support platform is a workbench commonly used in the field. The purpose of providing the support platform is to prevent the unevenness of the ground from adversely affecting the positioning accuracy between the copper tube and the web.

[0048] The marine copper tube welding fixture provided in this embodiment features a height adjustment mechanism 2 for adjusting the height of the welding platform 3, thereby adjusting the distance between the welding platform 3 and the support platform. The support surface 31 of the welding platform 3 supports the web, allowing the copper tube to extend toward the support platform through the connection holes on the web and the strip-shaped hole 32 on the welding platform 3. The strip-shaped hole 32 extends along one end of the second direction X to the end surface of the welding platform 3 along the second direction X. This facilitates removal of the connected copper tube and web from the end of the strip-shaped hole 32 extending to the end surface of the welding platform 3 after welding.

[0049] When welding a copper tube to a web, the height of the welding platform 3 is adjusted according to the length of the copper tube and the designed welding position of the copper tube and the web so that the web is placed on the supporting plane 31 of the welding platform 3. After the copper tube passes through the connecting hole on the web and the bottom end abuts against the top surface of the supporting platform, the relative position of the copper tube and the web is exactly at the designed welding position of the copper tube and the web. At this time, welding between the copper tube and the web can be carried out. When welding multiple copper tubes to the same web, the distance between the welding platform 3 and the supporting platform is adjusted according to the length of the longest copper tube among the multiple copper tubes and the designed welding position of the longest copper tube and the web, so that the web is placed on the supporting plane 31 of the welding platform 3. After the longest copper tube passes through the connecting hole on the web and the bottom end abuts against the top surface of the supporting platform, the relative position of the longest copper tube and the web is exactly located at the designed welding position of the longest copper tube and the web. Then, other shorter copper tubes are passed through the connecting holes on the web, and the height of the shorter copper tubes is adjusted by arranging gaskets between the shorter copper tubes and the supporting platform so that the relative position of the other shorter copper tubes and the web is exactly located at the designed welding position. Finally, welding of each copper tube to the web is performed.

[0050] The marine copper tube welding fixture provided in this embodiment can position the copper tube and the web at a relatively fast speed, thereby improving the positioning efficiency of the copper tube and the web. When welding the copper tube and the web, the web is supported by the welding platform 3, and the copper tube is supported by the web and the support platform. There is no need for auxiliary personnel to manually stabilize the relative position of the web and the copper tube, thus avoiding burns to auxiliary personnel during the welding process, thereby reducing the safety risks during the welding process and improving the welding efficiency while ensuring the welding quality.

[0051] Alternatively, as Figure 1 and Figure 2 As shown, the marine copper tube welding tool provided in this embodiment further includes a height scale 4, which is provided on the height adjustment mechanism 2. By providing the height scale 4 on the height adjustment mechanism 2, the height of the welding platform 3 can be adjusted quickly and accurately.

[0052] Alternatively, as Figure 1-Figure 3As shown, the welding platform 3 includes a support portion 33 and a connecting portion 34. The connecting portion 34 has a length along the third direction Y, with one end of the connecting portion 34 connected to the height adjustment mechanism 2. The support portion 33 has a length along the second direction X, with one end of the support portion 33 fixed to the other end of the connecting portion 34. A strip hole 32 is provided on the support portion 33, with one end of the strip hole 32 extending along the second direction X to the end surface of the other end of the support portion 33. The provision of the connecting portion 34 creates a gap between the support portion 33 and the height adjustment mechanism 2, preventing the height adjustment mechanism 2 from obstructing the placement of the web on the support portion 33. In this embodiment, both the support portion 33 and the connecting portion 34 are made of channel steel.

[0053] Alternatively, as Figure 1 、 Figure 2 and Figure 4 As shown, the height adjustment mechanism 2 includes a main member 21, a drive assembly 22, and a lifting member 23. The welding platform 3 is fixedly mounted on the lifting member 23. The length of the main member 21 is along the first direction Z. The lifting member 23 is sleeved on the main member 21. The drive assembly 22 is disposed on the main member 21 and connected to the lifting member 23. The drive assembly 22 is used to drive the lifting member 23 to move along the main member 21. The drive assembly 22 drives the lifting member 23 to rise and fall along the main member 21 to achieve height adjustment of the welding platform 3.

[0054] Alternatively, as Figure 1 、 Figure 2 and Figure 4 As shown, the drive assembly 22 includes a screw 221, a gear set 222, a transmission nut 223, and a drive rod. The screw 221 is rotatably arranged on the main body 21, and the axial direction of the screw 221 is along the first direction Z. The transmission nut 223 is threadedly connected to the screw 221, and the lifting member 23 is fixedly connected to the transmission nut 223. The drive rod is connected to the input end of the gear set 222, and the output end of the gear set 222 is connected to the screw 221. The transmission rod can drive the screw 221 to rotate relative to the main body 21 through the gear set 222. The drive rod is connected to the screw 221 through the gear set 222, so that the rotation of the drive rod can be converted into the rotation of the screw 221, and the rotation of the screw 221 can be further converted into the movement of the lifting member 23 along the first direction Z through the transmission nut 223, so that the lifting member 23 can drive the welding platform 3 to rise and fall along the first direction Z. Those skilled in the art will appreciate that when the screw 221 rotates, the drive nut 223 is fixed to the lifting member 23, which is sleeved on the main member 21, so that the drive nut 223 cannot rotate with the screw 221. As a result, the screw 221 can drive the drive nut 223 to move along the first direction Z. In this embodiment, the screw 221 is a trapezoidal lead screw, which is a lead screw with trapezoidal teeth.

[0055] Further, if Figure 1 and Figure 2 As shown, the gear set 222 includes a first bevel gear 2221 and a second bevel gear 2222. The first bevel gear 2221 is rotatably mounted on the main body 21, with the rotation axis of the first bevel gear 2221 perpendicular to the first direction Z. The second bevel gear 2222 is sleeved on the screw 221 and fixedly connected to the screw 221. The rotation axis of the second bevel gear 2222 is colinear with the axis of the screw 221, and the first bevel gear 2221 and the second bevel gear 2222 are meshed. Transmission between the drive rod and the screw 221 is achieved through the meshing of the first bevel gear 2221 and the second bevel gear 2222.

[0056] Further, if Figure 1 and Figure 2 As shown, the driving assembly 22 further comprises a driving hand wheel 24, and one end of the driving rod away from the first bevel gear 2221 is fixedly connected to the driving hand wheel 24. The driving hand wheel 24 is provided to facilitate the operator to drive the driving rod to rotate.

[0057] Further, if Figure 1 and Figure 2 As shown, the main body 21 includes a guide support rod 211, an upper connecting seat 212, and a lower connecting seat 213. The length direction of the guide support rod 211 is along the first direction Z. The lifting member 23 is sleeved on the guide support rod 211. The upper connecting seat 212 is fixedly mounted on the upper portion of the guide support rod 211, and the lower connecting seat 213 is fixedly mounted on the lower portion of the guide support rod 211. The screw rod 221 is disposed on one side of the length direction of the guide support rod 211, and its top end is rotatably connected to the upper connecting seat 212, and its bottom end is rotatably connected to the lower connecting seat 213. In this embodiment, the height scale 4 is disposed on the guide support rod 211. The upper connecting seat 212 and the lower connecting seat 213 facilitate the rotational connection between the screw rod 221 and the main body 21. In this embodiment, a first bearing 2121 is provided on the upper connecting seat 212, and a second bearing 2131 is provided on the lower connecting seat 213. The top end of the screw rod 221 is rotatably connected to the upper connecting seat 212 via the first bearing 2121, and the bottom end is rotatably connected to the lower connecting seat 213 via the second bearing 2131. In this embodiment, the cross-section of the guide support rod 211 is square.

[0058] Optionally, the bracket 1 includes a support base 11 and a rotating member 12, wherein the rotating member 12 is disposed on the support base 11 and is rotatable relative to the support base 11 about an axis extending along a first direction Z, and the height adjustment mechanism 2 is fixedly disposed on the rotating member 12. The support base 11 cooperates with the rotating member 12, so that the height adjustment mechanism 2 can rotate relative to the support base 11 along with the rotating member 12. When the copper tube and the web are located above the support platform, the weld between the copper tube and the web is located at a higher position, while the welder located below the support platform is located at a lower position, resulting in inconvenience for the welder's welding operation. By enabling the height adjustment mechanism 2 to rotate relative to the support base 11 along with the rotating member 12, after the copper tube and the web located above the support platform are initially welded and fixed, the height adjustment mechanism 2 can be rotated to rotate the welding platform 3 to the outside of the support platform. The height adjustment mechanism 2 can then be used to lower the height of the welding platform 3, thereby lowering the position of the weld between the web and the copper tube, making it easier for the welder to perform subsequent welding operations and firmly weld the copper tube to the web.

[0059] Further, if Figure 1 and Figure 5 As shown, the support seat 11 includes a base plate 111 and a support tube 112, and the bottom end of the support tube 112 is fixedly arranged on the base plate 111. The top end of the rotating member 12 is fixedly arranged at the bottom end of the guide support rod 211, and the bottom end is inserted into the support tube 112. The connection method inserted between the rotating member 12 and the support tube 112 allows the rotating member 12 to rotate relative to the support tube 112. In this embodiment, the support tube 112 and the base plate 111, as well as the rotating member 12 and the guide support rod 211 are welded and fixed. Specifically, in this embodiment, the bottom end face of the guide support rod 211 abuts the top end face of the support tube 112. In order to reduce the rotational resistance of the guide support rod 211 and the rotating member 12, lubricating oil is added between the rotating member 12 and the support tube 112, as well as between the guide support rod 211 and the support tube 112.

[0060] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A marine copper tube welding tool having a first direction (Z) and a second direction (X) perpendicular to each other, characterized in that: It comprises a bracket (1), a height adjustment mechanism (2), a welding platform (3) and a support platform, wherein the first direction (Z) is the height direction of the bracket (1); The support platform is arranged on one side of the bracket (1) along the first direction (Z); The height adjustment mechanism (2) is arranged on the bracket (1), the welding platform (3) is arranged on the height adjustment mechanism (2), and the height adjustment mechanism (2) is used to drive the welding platform (3) to move along the first direction (Z); A supporting plane (31) and a strip hole (32) are provided on the welding platform (3); the supporting plane (31) is provided at the top of the welding platform (3) along the first direction (Z) and is perpendicular to the first direction (Z); the strip hole (32) passes through the welding platform (3) along the first direction (Z); the length direction of the strip hole (32) is along the second direction (X); one end of the strip hole (32) along the second direction (X) extends to the end surface of one end of the welding platform (3) along the second direction (X); and the supporting plane (31) is provided on both sides of the strip hole (32) along the first direction (Z).

2. The marine copper tube welding tool according to claim 1, characterized in that: The welding platform (3) comprises a supporting portion (33) and a connecting portion (34), one end of the connecting portion (34) is connected to the height adjustment mechanism (2), the length direction of the supporting portion (33) is along the second direction (X), one end of the supporting portion (33) in the length direction is fixedly arranged on the other end of the connecting portion (34), the strip hole (32) is arranged on the supporting portion (33), and one end of the strip hole (32) in the second direction (X) extends to the end surface of the other end of the supporting portion (33) in the length direction.

3. The marine copper tube welding tool according to claim 1 or 2, characterized in that: The height adjustment mechanism (2) comprises a main body (21), a driving assembly (22) and a lifting member (23); The welding platform (3) is fixedly arranged on the lifting member (23); The length direction of the main body (21) is along the first direction (Z), the lifting member (23) is sleeved on the main body (21), the driving component (22) is arranged on the main body (21) and connected to the lifting member (23), and the driving component (22) is used to drive the lifting member (23) to move along the main body (21).

4. The marine copper tube welding tool according to claim 3, characterized in that: The driving assembly (22) includes a screw (221), a gear set (222), a transmission nut (223) and a driving rod; The screw (221) is rotatably disposed on the main body (21), and the axial direction of the screw (221) is along the first direction (Z); The transmission nut (223) is threadedly connected to the screw rod (221), and the lifting member (23) is fixedly connected to the transmission nut (223); The driving rod is connected to the input end of the gear set (222), and the output end of the gear set (222) is connected to the screw rod (221). The transmission rod can drive the screw rod (221) to rotate relative to the main body (21) through the gear set (222).

5. The marine copper tube welding tool according to claim 4, characterized in that: The gear set (222) includes a first bevel gear (2221) and a second bevel gear (2222); The first bevel gear (2221) is rotatably arranged on the main body (21), the rotation axis of the first bevel gear (2221) is perpendicular to the first direction (Z), the second bevel gear (2222) is sleeved on the screw (221) and fixedly connected to the screw (221), the rotation axis of the second bevel gear (2222) is colinear with the axis of the screw (221), and the first bevel gear (2221) is meshed with the second bevel gear (2222).

6. The marine copper tube welding tool according to claim 5, characterized in that: The driving assembly (22) further comprises a driving hand wheel (24), and one end of the driving rod away from the first bevel gear (2221) is fixedly connected to the driving hand wheel (24).

7. The marine copper tube welding tool according to claim 6, characterized in that: The main body (21) comprises a guide support rod (211), an upper connecting seat (212) and a lower connecting seat (213); the length direction of the guide support rod (211) is along the first direction (Z); the lifting member (23) is sleeved on the guide support rod (211); the upper connecting seat (212) is fixedly arranged on the upper part of the guide support rod (211); the lower connecting seat (213) is fixedly arranged on the lower part of the guide support rod (211); the screw rod (221) is arranged on one side of the length direction of the guide support rod (211); the top end is rotatably connected to the upper connecting seat (212); and the bottom end is rotatably connected to the lower connecting seat (213).

8. The marine copper tube welding tool according to claim 1, characterized in that: It also includes a height scale (4), which is arranged on the height adjustment mechanism (2).

9. The marine copper tube welding tool according to claim 7, characterized in that: The bracket (1) comprises a support seat (11) and a rotating member (12); the rotating member (12) is arranged on the support seat (11) and is capable of rotating relative to the support seat (11) around an axis extending along the first direction (Z); and the height adjustment mechanism (2) is fixedly arranged on the rotating member (12).

10. The marine copper tube welding tool according to claim 9, characterized in that: The support seat (11) comprises a bottom plate (111) and a support tube (112), wherein the bottom end of the support tube (112) is fixedly arranged on the bottom plate (111); The top end of the rotating member (12) is fixedly arranged on the bottom end of the guide support rod (211), and the bottom end is inserted into the support tube (112).

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