Cleaning device for a welding torch nozzle

Abstract

The utility model discloses a kind of cleaning devices of welding torch nozzle, it is related to nozzle cleaning technical field, and wherein, cleaning device includes support frame, positioning mechanism and reamer cleaning mechanism;The top of support frame is provided with installation shell, and one side of installation shell is working side;Positioning mechanism is set in working side, and positioning mechanism forms a positioning hole for nozzle to extend into;Reamer cleaning mechanism includes lifting assembly, reamer and rotary drive part, lifting assembly is installed on installation shell, rotary drive part is below positioning hole and is connected with lifting assembly, and reamer is installed on the output shaft of rotary drive part;Lifting assembly is used to drive reamer and rotary drive part relative support plate vertically along lifting, to make reamer extend into the inner cavity of nozzle located in positioning hole, and rotary drive part is used to drive reamer to rotate to clean the inner cavity of nozzle.The cleaning device of the utility model can more efficiently, more thoroughly remove residual welding slag, and cleaning effect is better.

Description

Technical Field

[0001] This utility model relates to the field of nozzle cleaning technology, and in particular to a cleaning device for welding torch nozzles. Background Technology

[0002] Currently, welding robots easily generate welding slag during the welding process. This slag adheres to the welding torch nozzle, and as welding time increases, more and more slag accumulates inside the nozzle, blocking the flow of welding gas, leading to poor weld quality and increased costs. Existing methods for cleaning welding robot nozzles mainly include using a spring inserted into the nozzle cavity and pulling and rotating the spring to remove the slag, or using vibration to shake the slag off the nozzle cavity. However, these methods are consistently ineffective at completely cleaning the slag inside the nozzle cavity, resulting in poor cleaning performance. Utility Model Content

[0003] The main purpose of this invention is to provide a cleaning device for welding torch nozzles, which aims to solve the technical problem that the existing methods for cleaning welding slag inside the welding torch nozzle cavity have poor cleaning effects.

[0004] To achieve the above objectives, this utility model proposes a cleaning device for a welding torch nozzle, the cleaning device comprising:

[0005] A support frame, the top of which is provided with a mounting shell, one side of which is the working side;

[0006] A positioning mechanism is disposed on the working side, and the positioning mechanism forms a positioning hole into which the nozzle extends;

[0007] A reamer cleaning mechanism includes a lifting assembly, a reamer, and a rotary drive. The lifting assembly is mounted on the mounting housing, and the rotary drive is located below the positioning hole and connected to the lifting assembly. The reamer is mounted on the output shaft of the rotary drive. The lifting assembly drives the reamer and the rotary drive to move vertically relative to the support frame, so that the reamer extends into the inner cavity of the nozzle located in the positioning hole. The rotary drive drives the reamer to rotate to clean the inner cavity of the nozzle.

[0008] In one embodiment, the working side has a vertically extending sliding hole. The lifting assembly includes a lifting drive and a mounting block. The lifting drive is installed inside the mounting housing and near the sliding hole. The mounting block is located on the working side, and one end of the mounting block passes through the sliding hole and is connected to the drive shaft of the lifting drive. The rotary drive is mounted on the mounting block. The lifting drive drives the mounting block to move vertically up and down in the sliding hole via the drive shaft, thereby driving the reamer and the rotary drive to move vertically up and down.

[0009] In one embodiment, a storage box may be detachably connected to the side of the support frame, and the storage box is located below the scissors. The storage box forms a storage space, and the top of the storage box has a storage opening that communicates with the storage space.

[0010] In one embodiment, the reamer is hollow to form a cavity inside, and a first opening communicating with the cavity is provided on the side of the reamer, the first opening extending vertically to the top of the reamer.

[0011] In one embodiment, the working side may also be detachably connected to a housing, and the housing covers the positioning mechanism, the reamer and the rotary drive component. The top of the housing has a second opening corresponding to the position of the positioning hole, and the bottom of the housing is open and corresponds to the storage opening.

[0012] In one embodiment, the positioning mechanism includes a positioning block, a movable block, and a telescopic drive. The positioning block is installed on the working side and forms the positioning hole. The telescopic drive is installed inside the mounting housing. A through hole is provided on the working side corresponding to the position of the telescopic drive. The movable block is disposed in the through hole and connected to the telescopic drive. The telescopic drive is used to drive the movable block to abut or disengage from the nozzle extending into the positioning hole, so as to cooperate with the hole wall of the positioning hole to clamp or release the nozzle extending into the positioning hole.

[0013] In one embodiment, the positioning block has a third opening communicating with the positioning hole on the side facing the mounting housing. The through hole is positioned corresponding to the third opening. One end of the movable block extends into the positioning hole from the third opening. The hole wall opposite to the third opening is the positioning wall. The telescopic drive is used to drive the movable block to move closer to or away from the positioning wall, so as to abut or disengage from the nozzle extending into the positioning hole.

[0014] In one embodiment, the side of the movable block facing the positioning wall is the positioning side, and both the positioning side and the positioning wall are arc-shaped and match the outer contour of the nozzle.

[0015] In one embodiment, the cleaning device further includes an oil spraying mechanism disposed on the side of the mounting housing away from the working side. The oil spraying mechanism includes an oil nozzle, a return oil bottle, and an oil supply bottle arranged sequentially from top to bottom. The oil inlet of the oil nozzle is connected to the oil supply bottle through an oil suction pipe, and the oil return port of the oil nozzle is connected to the return oil bottle through a return oil pipe. The oil supply bottle is used to hold anti-splash liquid, which can be sprayed through the oil nozzle into the inner cavity of the cleaned nozzle.

[0016] In one embodiment, a mounting box is provided on the side of the mounting housing away from the working side, the fuel injector is provided on the top of the mounting box, the return oil bottle is provided inside the mounting box, a support frame is provided on the side of the support frame near the mounting box, the top of the support frame is open, and the oil supply bottle is provided inside the support frame.

[0017] This utility model's cleaning device features a mounting shell on the top of a support frame, a positioning mechanism on the mounting side, and a positioning hole in the positioning mechanism. The welding torch nozzle can extend into this hole to ensure stable nozzle position during cleaning, thus preventing damage to the nozzle or incomplete cleaning by the reamer, improving reliability. The reamer cleaning mechanism includes a lifting assembly and a rotary drive. The lifting assembly drives the rotary drive and the reamer to move up and down, extending the reamer into the nozzle's inner cavity. The rotary drive rotates the reamer within the nozzle's inner cavity, scraping away the welding slag adhering to the inner wall. Compared to existing technologies that use springs or vibrations to clean welding slag from the nozzle's inner cavity, this utility model uses a reamer scraping method to remove residual welding slag more efficiently and thoroughly, resulting in better cleaning. Furthermore, the lifting assembly and rotary drive automatically move and rotate the reamer, automating the cleaning process, improving efficiency, and reducing labor costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the cleaning device provided in an embodiment of the present invention;

[0020] Figure 2 This is a partial structural schematic diagram of a cleaning device provided in an embodiment of the present invention;

[0021] Figure 3 An exploded view of the positioning mechanism in a cleaning device provided in an embodiment of this utility model.

[0022] Explanation of icon numbers:

[0023] 100. Cleaning device; 1. Support frame; 11. Mounting shell; 111. Solenoid valve; 12. Working side; 13. Sliding hole; 14. Storage box; 141. Storage space; 15. Outer shell; 151. Second opening; 16. Through hole; 17. Mounting box; 18. Support frame; 19. Pneumatic dual unit; 2. Positioning mechanism; 21. Positioning block; 211. Positioning hole; 2111. Positioning wall; 212. Third opening; 22. Movable block; 221. Positioning side; 23. Telescopic drive component; 3. Reamer cleaning mechanism; 31. Lifting assembly; 311. Lifting drive component; 312. Mounting block; 32. Reamer; 321. First opening; 33. Rotation drive component; 4. Oil injection mechanism; 41. Oil injector; 42. Oil bottle.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions 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. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] This utility model proposes a cleaning device 100 for welding torch nozzles.

[0029] Please see Figure 1 and Figure 2 In one embodiment of this utility model, the cleaning device 100 for the welding torch nozzle includes a support frame 1, a positioning mechanism 2, and a reamer cleaning mechanism 3. The top of the support frame 1 is provided with a mounting shell 11, one side of which is a working side 12. The positioning mechanism 2 is provided on the working side 12 and forms a positioning hole 211 for the nozzle to extend into. The reamer cleaning mechanism 3 includes a lifting assembly 31, a reamer 32, and a rotary drive 33. The lifting assembly 31 is mounted on the mounting shell 11, and the rotary drive 33 is located below the positioning hole 211 and connected to the lifting assembly 31. The reamer 32 is mounted on the output shaft of the rotary drive 33. The lifting assembly 31 is used to drive the reamer 32 and the rotary drive 33 to move vertically relative to the support frame, so that the reamer 32 extends into the inner cavity of the nozzle located in the positioning hole 211. The rotary drive 33 is used to drive the reamer 32 to rotate to clean the inner cavity of the nozzle.

[0030] The cleaning device 100 of this utility model features a mounting shell 11 on the top of the support frame 1, a positioning mechanism 2 on the mounting side, and a positioning hole 211 on the positioning mechanism 2. The welding torch nozzle can extend into the positioning hole 211 to ensure that the nozzle's position remains stable during the cleaning process, thereby avoiding damage to the nozzle or incomplete cleaning by the reamer 32, thus improving reliability. The reamer cleaning mechanism 3 also includes a lifting component 31 and a rotating drive component 33. The lifting component 31 can drive the rotating drive component 33 and the reamer 32 to move up and down, thereby extending the reamer 32 into the inner cavity of the nozzle. The rotating drive component 33 can drive the reamer 32 to rotate within the inner cavity of the nozzle, thereby scraping off the welding slag adhering to the inner wall of the nozzle cavity. Compared with the prior art that uses springs or vibrations to clean the welding slag inside the nozzle cavity, the scraping method using the reamer 32 can remove residual welding slag more efficiently and thoroughly, resulting in a better cleaning effect. Furthermore, the lifting assembly 31 and the rotating drive component 33 can automatically drive the reamer 32 to move up and down and rotate, realizing an automated cleaning process and reducing labor costs.

[0031] Furthermore, the outer diameter of the reamer 32 is smaller than the inner diameter of the nozzle, so that the reamer 32 can extend into the inner cavity of the nozzle and avoid the reamer 32 scraping against the inner wall of the nozzle cavity; in addition, during actual operation, the central axis of the reamer 32 and the nozzle are coaxial.

[0032] Please continue reading. Figure 2In one embodiment, the working side 12 has a vertically extending sliding hole 13. The lifting assembly 31 includes a lifting drive 311 and a mounting block 312. The lifting drive 311 is installed in the mounting housing 11 and close to the sliding hole 13. The mounting block 312 is located on the working side 12, and one end of the mounting block 312 passes through the sliding hole 13 and is connected to the drive shaft of the lifting drive 311. The rotary drive 33 is installed on the mounting block 312. The lifting drive 311 drives the mounting block 312 to move vertically up and down in the sliding hole 13 through the drive shaft, so as to drive the reamer 32 and the rotary drive 33 to move vertically up and down.

[0033] Understandably, by opening a vertically extending sliding hole 13 on the working side 12 and connecting the mounting block 312 through the sliding hole 13 to the lifting drive 311, the sliding hole 13 also has a certain guiding function, ensuring that the reamer 32 can accurately enter the nozzle cavity for cleaning when it is raised and lowered. The lifting drive 311 is set inside the mounting shell 11 and close to the sliding hole 13, making the structure more compact and reducing space occupation. In addition, the mounting shell 11 also has the function of protecting the lifting drive 311.

[0034] Depending on actual usage requirements, the lifting drive component 311 can also be installed on the working side 12.

[0035] In one embodiment, a storage box 14 can be detachably connected to the side of the support frame 1, and the storage box 14 is located below the scissor 32. The storage box 14 forms a storage space 141, and the top of the storage box 14 has a storage opening that communicates with the storage space 141.

[0036] By placing the storage box 14 below the reamer 32 and providing a storage opening that communicates with the storage space 141, welding slag that falls off from the nozzle cavity can be collected during the cleaning process, effectively preventing the work area from being contaminated by the slag and helping to maintain a clean working environment.

[0037] In one embodiment, the reamer 32 is hollow to form a cavity inside it, and a first opening 321 communicating with the cavity is provided on the side of the reamer 32. The first opening 321 extends vertically to the top of the reamer 32.

[0038] The hollow design of the reamer 32 allows the edge of the first opening 321 to scrape the welding slag from the inner wall of the nozzle during rotation. As the reamer 32 rotates and scrapes inside the nozzle, the welding slag can also enter the cavity inside the reamer 32 through the first opening 321, and with further rotation, it can be discharged from the bottom of the first opening 321, thereby improving the efficiency of welding slag removal. The discharged welding slag falls into the collection box 14 below.

[0039] In one embodiment, the working side 11 may also be detachably connected to a housing 15, and the housing 15 covers the positioning mechanism 2, the reamer 32 and the rotary drive 33. The top of the housing 15 is provided with a second opening 151 corresponding to the position of the positioning hole 211, and the bottom of the housing 15 is open and corresponds to the storage opening.

[0040] By providing a housing 15 on the mounting side, the second opening 151 facilitates the nozzle to enter the housing 15 and extend into the positioning hole 211. The housing 15 covers the positioning mechanism 2, the reamer 32, and the rotary drive 33, which can effectively reduce the risk of the rotating reamer 32 being affected by the external environment. In addition, the housing 15 can also prevent the welding slag scraped off by the reamer 32 from splashing everywhere. Under the protection of the housing 15, the welding slag is accurately collected in the storage box 14 located below the housing 15, which helps to maintain a clean working environment.

[0041] Please see Figure 2 and Figure 3 In one embodiment, the positioning mechanism 2 includes a positioning block 21, a movable block 22, and a telescopic drive member 23. The positioning block 21 is installed on the working side 12 and forms a positioning hole 211. The telescopic drive member 23 is installed in the mounting housing 11. A through hole 16 is provided on the working side 12 corresponding to the position of the telescopic drive member 23. The movable block 22 is disposed in the through hole 16 and connected to the telescopic drive member 23. The telescopic drive member 23 is used to drive the movable block 22 to abut or disengage from the nozzle extending into the positioning hole 211, so as to cooperate with the hole wall of the positioning hole 211 to clamp or release the nozzle extending into the positioning hole 211.

[0042] Understandably, by controlling the contact or disengagement of the movable block 22 with the nozzle through the telescopic drive component 23, precise clamping and loosening of the nozzle can be achieved. Furthermore, by adjusting the position of the movable block 22, it can be used to clamp welding gun nozzles of various specifications, thus improving versatility.

[0043] The telescopic drive component 23 is installed inside the mounting housing 11, which effectively protects the telescopic drive component 23 from external environmental interference. A through hole 16 is provided on the mounting side to facilitate the lateral movement of the movable block 22 via the telescopic drive component 23.

[0044] Specifically, the size of the positioning hole 211 is larger than the outer diameter of the nozzle to improve versatility. The nozzle is first inserted into the positioning hole 211, and then the movable block 22 is moved by the telescopic drive 23 to cooperate with the positioning block 21 to clamp the nozzle.

[0045] It should be noted that the lifting drive component 311 and the telescopic drive component 23 mentioned above can both be cylinders in the prior art, and the rotary drive component 33 can be a pneumatic motor in the prior art.

[0046] Furthermore, a solenoid valve 111 is also provided inside the mounting housing 11. The solenoid valve 111 is connected to the rotary drive 33, the lifting drive 311, and the telescopic drive 23 to control the rotary drive 33, the lifting drive 311, and the telescopic drive 23. A pneumatic dual unit 19 is also provided on the support frame 1. The pneumatic dual unit 19 is connected to an air source and is also connected to the solenoid valve 111 to filter the air source and ensure the stability of the air source when it enters the solenoid valve 111.

[0047] It should be noted that the solenoid valve 111 and the pneumatic dual unit 19 can both be solenoid valves and pneumatic dual units in the prior art. The way in which the solenoid valve 111 controls the rotary drive 33, the lifting drive 311 and the telescopic drive 23 can all be implemented using the prior art, which will not be elaborated here.

[0048] In one embodiment, the positioning block 21 has a third opening 212 communicating with the positioning hole 211 on the side facing the mounting shell 11. The through hole 16 is positioned corresponding to the third opening 212. One end of the movable block 22 extends into the positioning hole 211 from the third opening 212. The hole wall opposite to the third opening 212 in the positioning hole 211 is the positioning wall 2111. The telescopic drive member 23 is used to drive the movable block 22 to approach or move away from the positioning wall 2111 so as to abut or disengage from the nozzle extending into the positioning hole 211.

[0049] By providing a third opening 212 communicating with the positioning hole 211 on the side of the positioning block 21 facing the mounting shell 11, and allowing the movable block 22 to extend into the positioning hole 211 from the third opening 212, it can be ensured that the movable block 22 and the positioning wall 2111 are located on opposite sides of the nozzle, so as to achieve the clamping of the nozzle and the clamping effect is better.

[0050] In another embodiment, the movable block 22 includes two positioning parts located on the upper and lower sides of the positioning block 21. Both positioning parts can abut or dismount from the nozzle extending into the positioning hole 211, thereby cooperating with the hole wall of the positioning hole 211 to clamp or release the nozzle extending into the positioning hole 211.

[0051] In one embodiment, the side of the movable block 22 facing the positioning wall 2111 is the positioning side 221. Both the positioning side 221 and the positioning wall 2111 are arc-shaped and match the outer contour of the nozzle.

[0052] By setting both the positioning side 221 and the positioning wall 2111 of the movable block 22 in an arc shape and matching the outer contour of the nozzle, it can be ensured that the nozzle can be evenly pressured during the clamping process. Compared with flat contact, the arc design can better fit the shape of the nozzle, thereby providing a more stable clamping force and preventing the nozzle from sliding or deviating during the cleaning process.

[0053] In one embodiment, the cleaning device 100 further includes an oil spraying mechanism 4, which is disposed on the side of the mounting housing 11 away from the working side 12. The oil spraying mechanism 4 includes an oil nozzle 41, a return oil bottle (not shown) and an oil supply bottle 42 arranged sequentially from top to bottom. The oil inlet of the oil nozzle 41 is connected to the oil supply bottle 42 through an oil suction pipe, and the oil return port of the oil nozzle 41 is connected to the return oil bottle through a return oil pipe. The oil supply bottle 42 is used to hold anti-splash liquid, which can be sprayed through the oil nozzle 41 into the inner cavity of the cleaned nozzle.

[0054] By setting up the oil spraying mechanism 4, after cleaning the inner cavity of the nozzle, the nozzle is moved above the oil spray nozzle 41 to spray anti-splatter liquid into the inner cavity of the nozzle, which can form a protective film and effectively reduce the adhesion of welding slag splashed during subsequent welding processes to the inner wall of the nozzle. This not only keeps the nozzle clean, but also extends the time interval between cleaning.

[0055] It should be noted that the fuel injector 41 can be any fuel injector in the existing technology. The fuel injector has a coil inside, which generates suction when energized to draw the anti-splash liquid in the fuel bottle 42 and spray it into the inner cavity of the nozzle.

[0056] In one embodiment, a mounting box 17 is provided on the side of the mounting housing 11 away from the working side 12, an oil injector 41 is provided on the top of the mounting box 17, an oil return bottle is provided inside the mounting box 17, a support frame 18 is provided on the side of the support frame 1 near the mounting box 17, the top of the support frame 18 is open, and an oil supply bottle 42 is provided inside the support frame 18.

[0057] By setting up the mounting box 17, the fuel injector 41 is positioned on top of the mounting box 17, and the return oil bottle is placed inside the mounting box 17, ensuring the safety of the return oil bottle. Simultaneously, a support frame 18 is set up on the side of the support bracket 1 near the mounting box 17 to hold the supply oil bottle 42. This layout makes the entire cleaning device 100 structure more compact. Furthermore, the open design of the support frame 18 facilitates the placement and removal of the supply oil bottle 42, enabling rapid replenishment of the anti-splash fluid.

[0058] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A cleaning device for a welding torch nozzle, characterized in that, The cleaning device includes: A support frame, the top of which is provided with a mounting shell, one side of which is the working side; A positioning mechanism is disposed on the working side, and the positioning mechanism forms a positioning hole into which the nozzle extends; A reamer cleaning mechanism includes a lifting assembly, a reamer, and a rotary drive. The lifting assembly is mounted on the mounting housing, and the rotary drive is located below the positioning hole and connected to the lifting assembly. The reamer is mounted on the output shaft of the rotary drive. The lifting assembly drives the reamer and the rotary drive to move vertically relative to the support frame, so that the reamer extends into the inner cavity of the nozzle located in the positioning hole. The rotary drive drives the reamer to rotate to clean the inner cavity of the nozzle.

2. The cleaning device for the welding torch nozzle as described in claim 1, characterized in that, The working side has a vertically extending sliding hole. The lifting assembly includes a lifting drive and a mounting block. The lifting drive is installed inside the mounting housing and near the sliding hole. The mounting block is located on the working side, and one end of the mounting block passes through the sliding hole and is connected to the drive shaft of the lifting drive. The rotary drive is mounted on the mounting block. The lifting drive drives the mounting block to move vertically up and down in the sliding hole through the drive shaft, thereby driving the reamer and the rotary drive to move vertically up and down.

3. The cleaning device for the welding torch nozzle as described in claim 1, characterized in that, The support frame can also be detachably connected to a storage box, and the storage box is located below the scissors. The storage box forms a storage space, and the top of the storage box has a storage opening that communicates with the storage space.

4. The cleaning device for the welding torch nozzle as described in claim 3, characterized in that, The reamer is hollow to form a cavity inside it, and a first opening communicating with the cavity is provided on the side of the reamer. The first opening extends vertically to the top of the reamer.

5. The cleaning device for the welding torch nozzle as described in claim 4, characterized in that, The working side can also be detachably connected to a housing, and the housing covers the positioning mechanism, the reamer and the rotary drive component. The top of the housing has a second opening corresponding to the position of the positioning hole, and the bottom of the housing is open and corresponds to the storage opening.

6. The cleaning device for the welding torch nozzle as described in any one of claims 1 to 5, characterized in that, The positioning mechanism includes a positioning block, a movable block, and a telescopic drive component. The positioning block is installed on the working side and forms the positioning hole. The telescopic drive component is installed inside the mounting housing. A through hole is provided on the working side corresponding to the position of the telescopic drive component. The movable block is disposed in the through hole and connected to the telescopic drive component. The telescopic drive component is used to drive the movable block to abut or dismount from the nozzle extending into the positioning hole, so as to cooperate with the hole wall of the positioning hole to clamp or release the nozzle extending into the positioning hole.

7. The cleaning device for the welding torch nozzle as described in claim 6, characterized in that, The positioning block has a third opening communicating with the positioning hole on the side facing the mounting shell. The through hole is positioned corresponding to the third opening. One end of the movable block extends into the positioning hole from the third opening. The hole wall opposite to the third opening is the positioning wall. The telescopic drive is used to drive the movable block to move closer to or away from the positioning wall so as to abut or dismount from the nozzle extending into the positioning hole.

8. The cleaning device for the welding torch nozzle as described in claim 7, characterized in that, The side of the movable block facing the positioning wall is the positioning side. Both the positioning side and the positioning wall are arc-shaped and match the outer contour of the nozzle.

9. The cleaning device for the welding torch nozzle as described in claim 6, characterized in that, The cleaning device also includes an oil spraying mechanism, which is located on the side of the mounting housing away from the working side. The oil spraying mechanism includes an oil nozzle, a return oil bottle, and an oil supply bottle arranged sequentially from top to bottom. The oil inlet of the oil nozzle is connected to the oil supply bottle through an oil suction pipe, and the oil return port of the oil nozzle is connected to the return oil bottle through a return oil pipe. The oil supply bottle is used to hold anti-splash liquid, which can be sprayed through the oil nozzle into the inner cavity of the cleaned nozzle.

10. The cleaning device for the welding torch nozzle as described in claim 9, characterized in that, The mounting housing has a mounting box on the side opposite to the working side. The fuel injector is located on the top of the mounting box. The return oil bottle is located inside the mounting box. The support frame is located on the side of the support bracket near the mounting box. The top of the support frame is open. The oil supply bottle is located inside the support frame.

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