CN215880599U - Welding gun cleaning and wire cutting device - Google Patents

Abstract

The utility model relates to the technical field of welding gun cleaning devices, and discloses a welding gun cleaning and wire cutting device which comprises a driving device and a gun cleaning and wire cutting mechanism, wherein the gun cleaning and wire cutting mechanism can extend into a protective nozzle of a welding gun, the gun cleaning and wire cutting mechanism comprises a shell, a wire cutting mechanism and a gun cleaning mechanism, the wire cutting mechanism comprises two wire cutting knives, a welding wire of the welding gun can extend between the two wire cutting knives, and the driving device can drive the two wire cutting knives to be close to or far away from each other; the gun cleaning mechanism comprises two groups of scraper assemblies, the middle parts of the scraper assemblies are rotatably arranged on the shell, and the wire cutting knife is connected with one end of each scraper assembly, so that the other ends of the scraper assemblies can extend out of the shell and contact the inner wall of the welding gun protection nozzle to clean the inner wall. The gun-cleaning wire-cutting device for the welding gun can realize linkage of cutting of the wire-cutting knife to the welding wire and cleaning of the scraper component to the inner wall of the protection nozzle, and is simple and convenient to operate.

Description

Welding gun cleaning and wire cutting device

Technical Field

The utility model relates to the technical field of welding gun cleaning devices, in particular to a welding gun cleaning and wire cutting device.

Background

The welding gun is a part for executing welding operation in the welding process, welding slag splashes to the outer side of a nozzle of the welding gun in the using process of the welding gun, if the welding slag is excessively accumulated, gas protection in the welding process can be influenced, welding precision can also be influenced, and meanwhile, if a welding wire is excessively long, electric arc is unstable, and welding quality is influenced. Therefore, after the welding gun is used up, operations of gun cleaning and wire cutting are required to be performed on the welding gun to ensure the subsequent welding quality, and therefore, it is necessary to design a gun cleaning and wire cutting device for the welding gun.

However, in the prior art, the common gun cleaning and cutting device for the welding gun generally comprises a wire cutting device and a gun cleaning device, the two devices are performed in different processes and need to be driven respectively, so that the wire cutting and gun cleaning operations are complicated, and therefore, the gun cleaning and cutting device for the welding gun is urgently needed to be designed, and the problem can be solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a welding gun cleaning and wire cutting device, which solves the technical problem that the wire cutting and gun cleaning operation of the conventional welding gun cleaning and wire cutting device is complicated.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a welding gun cleaning and wire cutting device, which comprises a driving device and a gun cleaning and wire cutting mechanism, wherein the gun cleaning and wire cutting mechanism can extend into a protective nozzle of a welding gun, and comprises:

a housing;

the wire cutting mechanism is arranged in the shell and comprises two wire cutting knives, a welding wire of the welding gun can extend between the two wire cutting knives, and the driving device is configured to drive the two wire cutting knives to be close to or far away from each other; and

clear rifle mechanism, including two sets of scraper subassemblies, the middle part of scraper subassembly rotate set up in the casing, cut the silk sword with the one end of scraper subassembly links to each other, so that the other end of scraper subassembly can connect and stretch out the casing and touch the inner wall of welder's protection mouth, it is right to clear up the inner wall.

The gun cleaning and wire cutting mechanism of the gun cleaning and wire cutting device for the welding gun can extend into a protective nozzle of the welding gun and is positioned between two wire cutting knives, and the driving device can drive the two wire cutting knives to be close to or far away from each other so as to cut the welding wire; the gun cleaning mechanism comprises two groups of scraper assemblies, the middle parts of the scraper assemblies are rotatably arranged in the shell, the wire cutting knife is connected with one end of the scraper assemblies, the other end of each scraper assembly can extend out of the shell and contact with the inner wall of the protection nozzle through the movement of the wire cutting knife, the inner wall of the protection nozzle is cleaned, the blockage of the protection nozzle is avoided, the gun cleaning and wire cutting device for the welding gun can realize linkage of the wire cutting knife to the cutting of the welding wire and the cleaning of the scraper assemblies on the inner wall of the protection nozzle, and the gun cleaning and wire cutting device is simple and convenient to operate.

As a preferable scheme of the gun cleaning and wire cutting device for the welding gun, the gun cleaning and wire cutting mechanism further comprises:

the limiting component is arranged in the shell and is configured to limit a contact tube of the welding gun.

The setting of spacing subassembly can carry on spacingly to the contact tip of butt welder to guarantee that the contact tip stretches into clear rifle at every turn and cuts the degree of depth unanimously of silk mechanism, so that can cut the welding wire of butt welder through the welding wire mechanism, the length after the welding wire is cut is unanimous moreover, the phenomenon of welding wire overlength or short can not appear.

As an optimal scheme of the welding gun cleaning and wire shearing device, a limiting groove is formed in the limiting component, a conductive nozzle of the welding gun can extend into the limiting groove and is abutted against the bottom of the limiting groove, a through hole is formed in the bottom of the limiting groove, and a welding wire of the welding gun extends into the space between the two sets of wire shearing knives through the through hole.

The limiting assembly is simple in structure, convenient to prepare and capable of easily limiting the conductive nozzle of the welding gun.

As a preferable scheme of the gun cleaning and wire cutting device for the welding gun, an opening is formed in the top of the shell, and a notch of the limiting groove is communicated with the opening.

The opening at the top of the shell is convenient for the conductive nozzle of the welding gun to extend into the limit groove.

As a preferable scheme of the gun cleaning and wire cutting device for the welding gun, an output end of the driving device is in transmission connection with the shell to drive the shell, the wire cutting mechanism and the gun cleaning mechanism to rotate.

The output end of the driving device is in transmission connection with the shell, so that the shell, the wire cutting mechanism and the gun cleaning mechanism can be driven to rotate, the gun cleaning mechanism can clean the whole circumference of the inner wall of the protection nozzle, and the cleaning effect is good.

As a preferable solution of the gun cleaning and wire cutting device for the welding gun, the driving device includes:

a drive motor;

the output end of the driving motor is in transmission connection with the first transmission assembly so as to drive the first transmission assembly to move to drive the shell to rotate; and

and the output end of the driving motor is respectively in transmission connection with the second transmission assemblies so as to drive the two groups of wire cutting knives to be close to or far away from each other.

The driving device comprises a driving motor, a first transmission assembly and two groups of second transmission assemblies, and the driving motor realizes the rotation of the shell through the first transmission assembly; the driving motor realizes the mutual approaching or distancing of the two groups of wire cutters through the second transmission component.

As a preferable solution of the gun cleaning and wire cutting device for the welding gun, the second transmission assembly includes:

the driving wheel is arranged at the output end of the driving motor;

the driven wheel assemblies are in transmission connection with the driving wheels, and the transmission directions of the driven wheel assemblies of the two groups of second transmission assemblies are the same; and

and the transmission racks are arranged on the wire cutters and are respectively positioned on two sides of the driven wheel assembly, and the transmission racks are in transmission connection with the driven wheel assembly to drive the wire cutters to be close to or far away from each other.

The second transmission assembly is simple in structure, convenient to move and prepare and capable of achieving the movement of the wire cutting knife.

As a preferable solution of the gun cleaning and wire cutting device for the welding gun, the driven wheel assembly includes:

the connecting rod is rotatably arranged in the shell;

the first driven wheel is arranged on the connecting rod and is in transmission connection with the driving wheel; and

the second driven wheel is arranged at one end, close to the wire cutting knife, of the connecting rod and is in transmission connection with the corresponding transmission rack.

The driven wheel assembly is convenient for transmitting the driving force of the driving motor to the wire cutting knife so as to convert the rotation of the driving wheel into the movement of the wire cutting knife.

As a preferred scheme of the gun cleaning and wire cutting device for the welding gun, a shaft is installed in the shell, a mounting hole is formed in the middle of the scraper component, the shaft penetrates through the mounting hole, and the scraper component can rotate around the shaft.

The scraper component is provided with a mounting hole, the shaft piece is arranged in the shell and penetrates through the mounting hole, and the scraper can rotate around the shaft piece so as to clean the inner wall of the protective nozzle; can also rotate when the casing rotates through the axle piece, the scraper subassembly can rotate along with the casing to clear up the whole week of the inner wall of protection mouth, it is comparatively convenient to operate.

The utility model has the beneficial effects that:

according to the gun cleaning and wire cutting device for the welding gun, the gun cleaning and wire cutting mechanism can extend into a protective nozzle of the welding gun and is positioned between the two wire cutting knives, and the driving device can drive the two wire cutting knives to be close to or far away from each other so as to cut the welding wire; clear rifle mechanism includes two sets of scraper subassemblies, the middle part of scraper subassembly is rotated and is set up in the casing, the wire cutter links to each other with the one end of scraper subassembly, the inner wall of protecting the mouth so that the other end of scraper subassembly can be close to or keep away from welder through the removal of wire cutter, thereby clear up the inner wall of protecting the mouth, avoid protecting the jam of mouth, this welder clears rifle wire cutting device can realize the linkage of shearing of wire cutter to the welding wire and the clearance of scraper subassembly to protecting the mouth inner wall, and is easy and simple to handle.

Drawings

FIG. 1 is a schematic structural diagram of a gun cleaning welding wire mechanism of a gun cleaning wire cutting device of a welding gun according to the present invention extending into the welding gun;

FIG. 2 is a cross-sectional view of a gun cleaning and wire cutting device for a welding gun according to the present invention;

FIG. 3 is a schematic structural diagram of a driving motor provided in the present invention;

FIG. 4 is an angled cross-sectional view of the gun cleaning wire cutting mechanism provided by the present invention;

FIG. 5 is a cross-sectional view of another angle of the gun cleaning wire cutting mechanism provided by the present invention;

FIG. 6 is a top view of the gun cleaning wire cutting mechanism provided by the present invention;

fig. 7 is a schematic structural diagram of a wire cutting mechanism provided by the utility model.

In the figure:

100. a welding gun; 101. protecting the mouth; 102. welding wires; 103. a contact tip;

1. a drive device; 11. a drive motor; 12. a second transmission assembly; 121. a driving wheel; 122. a drive rack; 123. a connecting rod; 124. a first driven wheel; 125. a second driven wheel; 126. a bearing;

2. a housing; 21. a shaft member;

3. a wire cutting mechanism; 31. a shredding knife;

4. a gun cleaning mechanism; 41. a scraper assembly;

5. a limiting component; 50. a limiting groove; 52. a through hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The first embodiment is as follows:

as shown in fig. 1 and fig. 2, the embodiment provides a welding gun cleaning wire cutting device, which includes a driving device 1 and a gun cleaning wire cutting mechanism, where the driving device 1 can drive the gun cleaning wire cutting mechanism to rotate, the gun cleaning wire cutting mechanism can extend into a protective nozzle 101 of a welding gun 100, the gun cleaning wire cutting mechanism includes a housing 2, a wire cutting mechanism 3 and a gun cleaning mechanism 4, the housing 2 is in transmission connection with an output end of the driving device 1, the driving device 1 can drive the housing 2 to rotate, the wire cutting mechanism 3 is disposed in the housing 2, the wire cutting mechanism 3 includes two wire cutting knives 31, a welding wire 102 of the welding gun 100 can extend into a space between the two wire cutting knives 31, and the driving device 1 can drive the two wire cutting knives 31 to approach or move away from each other so as to cut the welding wire 102; the gun cleaning mechanism 4 comprises two groups of scraper assemblies 41, the middle parts of the scraper assemblies 41 are rotatably arranged on the shell 2, and the wire shearing knife 31 is connected with one ends of the scraper assemblies 41, so that the other ends of the scraper assemblies 41 can extend out of the shell 2 and contact the inner wall of the protection nozzle 101 of the welding gun 100, the inner wall of the protection nozzle 101 is cleaned, and the protection nozzle 101 is prevented from being blocked; the driving device 1 can drive the gun cleaning and wire cutting mechanism 3 to rotate, so that the gun cleaning mechanism 4 can clean the whole circumference of the inner wall of the protection nozzle 101, and the cleaning effect is good; the welding gun cleaning wire cutting device can realize linkage of cutting of the wire cutter 31 on the welding wire 102 and cleaning of the scraper component 41 on the inner wall of the protection nozzle 101, and is simple and convenient to operate.

In this embodiment, the gun cleaning mechanism 4 is disposed above the wire cutting mechanism 3, the wire cutting blade 31 is connected to the bottom end of the scraper assembly 41, and the top end of the scraper assembly 41 can contact the inner wall of the protection nozzle 101 of the welding gun 100 and clean the inner wall.

The length of welding wire 102 of welding gun 100 extending out of contact tip 103 is too long, and welding wire 102 can be softened when heated, which can cause unstable arc in the welding process, especially when welding wire 102 swings, unstable motion of welding wire 102 can be caused due to resistance of molten pool and arc thrust; if the length of the welding wire 102 extending out of the contact tip 103 is too short, the temperature may be too high, and the contact tip 103 may be damaged, in order to solve the above problems, as shown in fig. 1, fig. 2, and fig. 4 to 6, the gun cleaning wire cutting mechanism further includes a limiting component 5, the limiting component 5 is disposed in the housing 2, the limiting component 5 may limit the contact tip 103 of the welding gun 100, since the distance between the limiting component 5 and the wire cutting mechanism 3 is constant, as long as the position of the contact tip 103 is limited, it may be ensured that the depth of the contact tip 103 extending into the gun cleaning wire cutting mechanism is consistent each time, so that the welding wire 102 of the welding gun 100 may be cut by the wire cutting mechanism 3, and the length of the welding wire 102 after being cut is consistent, and the phenomenon that the welding wire 102 is too long or too short may not occur.

Further, as shown in fig. 2 and 5, the limiting component 5 is provided with a limiting groove 50, the contact tip 103 of the welding gun 100 can extend into the limiting groove 50 and abut against the bottom of the limiting groove 50, the bottom of the limiting groove 50 is provided with a through hole 52, and the welding wire 102 of the welding gun 100 extends between the two sets of wire cutters 31 through the through hole 52. The limiting assembly 5 is simple in structure and convenient to manufacture, and can easily limit the contact tip 103 of the welding gun 100. The top of the housing 2 is provided with an opening, and the notch of the limiting groove 50 is communicated with the opening. The opening at the top of the housing 2 is provided to facilitate the insertion of the contact tip 103 of the welding gun 100 into the limit groove 50. In this embodiment, the limiting component 5 is an integral structure.

In this embodiment, the output end of the driving device 1 is in transmission connection with the casing 2 to drive the casing 2, the thread cutting mechanism 3 and the gun cleaning mechanism 4 to rotate, as shown in fig. 2-4, the driving device 1 includes a driving motor 11, a first transmission assembly and two sets of second transmission assemblies 12, the output end of the driving motor 11 is in transmission connection with the first transmission assembly to drive the first transmission assembly to move so as to drive the casing 2 to rotate, each set of second transmission assemblies 12 is in transmission connection with one set of thread cutting knives 31, the output end of the driving motor 11 is in transmission connection with the second transmission assemblies 12 respectively to drive the two sets of thread cutting knives 31 to approach to or keep away from each other. The driving device 1 comprises a driving motor 11, a first transmission assembly and two groups of second transmission assemblies 12, wherein the driving motor 11 realizes the rotation of the shell 2 through the first transmission assembly; the driving motor 11 realizes the mutual approaching or departing of the two groups of the wire cutters 31 through the second transmission component 12. In the present embodiment, the drive motor 11 is a rotating electric machine.

Further, each set of second transmission assembly 12 includes a driving wheel 121, a driven wheel assembly and a transmission rack 122, the driving wheel 121 is disposed at the output end of the driving motor 11, the driven wheel assembly is engaged with the driving wheel 121 for transmission, the rotation directions of the driven wheel assemblies of the two sets of second transmission assemblies 12 are the same, the transmission rack 122 is disposed on the shredding knife 31, the transmission racks 122 of the two sets of second transmission assemblies 12 are respectively disposed at two sides of the two sets of driven wheel assemblies, and each set of transmission rack 122 is connected with a set of driven wheel assembly for transmission, so as to drive the shredding knife 31 to be close to or away from each other. The second transmission assembly 12 is simple in structure, convenient to move and prepare, and capable of achieving the movement of the wire cutting knife 31 conveniently.

Furthermore, the driven wheel assembly comprises a connecting rod 123, a first driven wheel 124 and a second driven wheel 125, the connecting rod 123 is rotatably disposed in the housing 2, a bearing 126 is disposed at the bottom of the connecting rod 123, the bearing 126 is mounted in the housing 2, the first driven wheel 124 is disposed on the connecting rod 123, the first driven wheel 124 is in transmission connection with the driving wheel 121, the second driven wheel 125 is disposed at one end of the connecting rod 123 close to the filament cutter 31, and the second driven wheel 125 is in transmission connection with the corresponding transmission rack 122. The above-described driven wheel assembly facilitates transmission of the driving force of the driving motor 11 to the filament cutter 31 so as to convert the rotation of the driving wheel 121 into the movement of the filament cutter 31.

In one embodiment, the first transmission assembly includes a transmission wheel disposed at an output end of the driving device 1, and the transmission wheel is connected to the housing 2, or the transmission wheel is connected to the housing 2 through a connection structure, so that the driving device 1 drives the housing 2 to rotate synchronously. In other embodiments, the housing 2 may be connected to the driving wheel 121 to drive the housing 2 to rotate through the driving wheel 121, so that the structure is simple. The housing 2 is connected to the driving wheel 121 by means of a connecting member, such as a flange, a bolt, etc. In this embodiment, the driving wheel 121 is connected to the housing 2 through a flange, so that the driving wheel 121 drives the housing 2 to rotate.

Optionally, as shown in fig. 7, the wire cutters 31 are in a semicircular structure, the two wire cutters 31 are disposed opposite to each other, straight edges of the two wire cutters 31 are provided with cutting edges, each wire cutter 31 is provided with a transmission chain 122, and the transmission chains 122 on the two wire cutters 31 are disposed in a staggered manner, so that the transmission chains 122 cooperate with the corresponding second driven wheels 125 to achieve mutual approaching or departing of the two wire cutters 31.

Optionally, a shaft 21 is installed in the housing 2, a mounting hole is formed in the middle of the scraper assembly 41, the shaft 21 is inserted into the mounting hole, and the scraper assembly 41 can rotate around the shaft 21, so as to clean the inner wall of the protection nozzle 101; can also rotate at casing 2 through axle piece 21, scraper component 41 can rotate along with casing 2 to clear up the whole week of the inner wall of protection mouth 101, it is comparatively convenient to operate.

Optionally, the casing 2 is provided with a hole corresponding to the scraper assembly 41, and the scraper assembly 41 rotates around the shaft member 21 to extend into or out of the casing 2 through the hole. Through set up the trompil with the position that scraper assembly 41 corresponds on casing 2, when scraper assembly 41 revolves the axis of rotation, can stretch into or stretch out casing 2 by the trompil to avoid casing 2 to produce the interference to scraper assembly 41's rotation.

The process of cleaning and cutting the welding gun 100:

firstly, the top end of the gun cleaning wire cutting mechanism extends into a protection nozzle 101 of a welding gun 100, a conductive nozzle 103 of the welding gun 100 extends into a limiting groove 50 of a limiting component 5, and the gun cleaning wire cutting mechanism cannot extend into the protection nozzle 101 continuously and then extends in place;

then, the driving motor 11 is turned on to drive the two groups of wire cutters 31 to approach each other through the second transmission assembly 12, and cut the welding wire 102; as the cutters 31 approach each other, the other ends of the scraper assemblies 41 move away from each other and extend out of the housing 2 to contact the inner wall of the protection nozzle 101 for cleaning the protection nozzle 101. It should be noted that when the driving motor 11 is activated, the gun cleaning thread cutting mechanism is synchronously driven to rotate, so that the scraper assembly 41 cleans the whole circumference of the protection nozzle 101.

Example two:

the embodiment provides a clear rifle of welder and cuts silk mechanism, and the clear rifle of welder cuts silk mechanism and the difference of embodiment one in this embodiment lies in, and drive arrangement can drive clear rifle mechanism and rotate in the embodiment one to make scraper assembly clear up the whole week of protection mouth, it is comparatively convenient to operate. In the embodiment, the gun cleaning and wire cutting mechanism cannot be driven to rotate by the driving device 1.

Alternatively, the housing 1 may be fixedly mounted on the housing of the drive device 1, so that during gun cleaning, it is necessary to rotate by means of manual force in order to clean the entire circumference of the protective nozzle.

Of course, other driving mechanisms can be additionally arranged and used for driving the gun cleaning and wire cutting mechanism to rotate, so that the whole circumference of the protection nozzle can be automatically cleaned.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the utility model. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (9)

1. The utility model provides a clear rifle of welder cuts a device, its characterized in that includes drive arrangement (1) and clear rifle cuts a mechanism, clear rifle cuts a mechanism and can stretch into in protection mouth (101) of welder (100), clear rifle cuts a mechanism and includes:

a housing (2);

the wire cutting mechanism (3) is arranged in the shell (2), the wire cutting mechanism (3) comprises two wire cutters (31), a welding wire (102) of the welding gun (100) can extend between the two wire cutters (31), and the driving device (1) is configured to drive the two wire cutters (31) to move close to or away from each other; and

clear rifle mechanism (4), including two sets of scraper components (41), the middle part of scraper component (41) rotate set up in casing (2), cut silk sword (31) with the one end of scraper component (41) links to each other, so that the other end of scraper component (41) can stretch out casing (2) and contact the inner wall of welder (100)'s protection mouth (101), in order to right the inner wall is cleared up.

2. The gun cleaning wire cutting device according to claim 1, wherein the gun cleaning wire cutting mechanism further comprises:

a limiting assembly (5) disposed within the housing (2), the limiting assembly (5) configured to limit a contact tip (103) of the welding gun (100).

3. The welding gun cleaning wire cutting device according to claim 2, characterized in that a limiting groove (50) is formed in the limiting component (5), a contact tip (103) of the welding gun (100) can extend into the limiting groove (50) and abut against the bottom of the limiting groove (50), a through hole (52) is formed in the bottom of the limiting groove (50), and a welding wire (102) of the welding gun (100) extends from the through hole (52) to the position between the two sets of wire cutting knives (31).

4. The gun cleaning wire cutting device of the welding gun according to claim 3, characterized in that an opening is arranged at the top of the housing (2), and the notch of the limiting groove (50) is communicated with the opening.

5. The welding gun cleaning wire cutting device according to any one of claims 1-4, characterized in that the output end of the driving device (1) is in transmission connection with the housing (2) to drive the housing (2), the wire cutting mechanism (3) and the gun cleaning mechanism (4) to rotate.

6. The gun cleaning wire cutting device according to claim 5, characterized in that the driving device (1) comprises:

a drive motor (11);

the output end of the driving motor (11) is in transmission connection with the first transmission assembly so as to drive the first transmission assembly to move to drive the shell (2) to rotate; and

two sets of second transmission assembly (12), every group second transmission assembly (12) all with a set of cut a silk sword (31) transmission is connected, driving motor (11) the output respectively with second transmission assembly (12) transmission is connected to it is two sets of to drive cut silk sword (31) and be close to each other or keep away from.

7. The gun welder wire cutting device according to claim 6, characterized in that the second transmission assembly (12) comprises:

the driving wheel (121) is arranged at the output end of the driving motor (11);

the driven wheel assemblies are in transmission connection with the driving wheel (121), and the rotating directions of the driven wheel assemblies of the two groups of second transmission assemblies (12) are the same; and

and the transmission racks (122) are arranged on the wire shearing knives (31), the transmission racks (122) of the second transmission assemblies (12) are respectively positioned on two sides of the driven wheel assemblies, and each transmission rack (122) is in transmission connection with one driven wheel assembly to drive the wire shearing knives (31) to be close to or far away from each other.

8. The gun cleaning wire shearing device according to claim 7, wherein the driven wheel assembly comprises:

the connecting rod (123) is rotatably arranged in the shell (2);

the first driven wheel (124) is arranged on the connecting rod (123), and the first driven wheel (124) is in transmission connection with the driving wheel (121); and

the second driven wheel (125) is arranged at one end, close to the wire cutting knife (31), of the connecting rod (123), and the second driven wheel (125) is in transmission connection with the corresponding transmission rack (122).

9. The welding gun cleaning wire cutting device according to claim 5, characterized in that a shaft member (21) is arranged in the housing (2), a mounting hole is arranged in the middle of the scraper assembly (41), the shaft member (21) is arranged in the mounting hole in a penetrating manner, and the scraper assembly (41) can rotate around the shaft member (21).

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