Welding gun cleaning device

Abstract

The invention relates to a gun cleaning device for a welding gun. The gun cleaning device comprises a rack, a turntable mechanism, a lifting mechanism, a dismounting mechanism, a nozzle cleaning mechanism and a contact tube cleaning mechanism. The rotating disc mechanism comprises a fixing base and a rotating disc, the fixing base is arranged on the rack in a lifting motion mode through a lifting mechanism, and the rotating disc is rotatably connected with the fixing base. And the dismounting mechanism can correspond to the welding gun up and down under the driving of the turntable, and is used for dismounting or mounting a nozzle of the welding gun. The disassembling and assembling mechanism can correspond to the nozzle cleaning mechanism up and down under driving of the rotating disc, and the nozzle cleaning mechanism is used for cleaning the nozzles on the disassembling and assembling mechanism. And the contact tube cleaning mechanism can correspond to the welding gun up and down under the driving of the turntable, and is used for cleaning a contact tube of the welding gun. According to the gun cleaning device for the welding gun, the nozzle of the welding gun can be disassembled, assembled and cleaned, the contact tube can be cleaned, the welding gun can be automatically cleaned, the nozzle can be replaced, the gun cleaning device is simple in structure and convenient to operate, the gun cleaning efficiency can be improved, and the labor cost can be saved.

Description

Technical Field

[0001] The invention relates to the technical field of welding gun equipment, in particular to a welding gun cleaning device. Background Art

[0002] At present, arc welding robots have been widely used in automated production lines in the fields of automobiles, shipbuilding, containers, etc. The front nozzle and conductive nozzle of the arc welding gun are generally fastened to the main body of the welding gun by threads. During the use of the arc welding gun, welding slag is prone to adhere to the welding gun nozzle and conductive nozzle, thus affecting the welding quality. Therefore, the nozzle needs to be cleaned or replaced regularly.

[0003] Currently, the cleaning and replacement of nozzles on the production line are mainly done manually, which results in high labor costs. Summary of the invention

[0004] One purpose of the present invention is to solve the deficiencies in the prior art and provide a welding gun cleaning device. To solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A welding gun cleaning device, comprising:

[0006] A frame, the top of which is provided with a fixing position for fixing a welding gun;

[0007] A turntable mechanism is arranged below the fixed position, and includes a fixed seat and a turntable. The fixed seat is arranged on the frame so as to be movable up and down through a lifting mechanism, and the turntable is arranged above the fixed seat and is rotatably connected to the fixed seat in a horizontal direction.

[0008] The disassembly and assembly mechanism is arranged on the turntable. The disassembly and assembly mechanism can correspond to the welding gun fixed at the fixed position up and down under the drive of the turntable. The disassembly and assembly mechanism is used to disassemble or install the nozzle of the welding gun;

[0009] The nozzle cleaning mechanism is arranged above the turntable. The disassembly and assembly mechanism can correspond to the nozzle cleaning mechanism up and down under the drive of the turntable. The nozzle cleaning mechanism is used to clean the nozzle on the disassembly and assembly mechanism.

[0010] The conductive nozzle cleaning mechanism is arranged on the turntable. The conductive nozzle cleaning mechanism can correspond to the welding gun fixed at a fixed position up and down under the drive of the turntable. The conductive nozzle cleaning mechanism is used to clean the conductive nozzle of the welding gun.

[0011] In one embodiment, the disassembly and assembly mechanism comprises:

[0012] A fixed cylinder rotatably disposed on the turntable;

[0013] A clamping assembly, which is arranged on the fixed cylinder, and is used to clamp or release the nozzle of the welding gun;

[0014] The first driving member is fixedly mounted on the turntable and is drivingly connected to the fixed cylinder to drive the fixed cylinder to rotate.

[0015] In one embodiment, the disassembly mechanism includes a sliding cylinder, which is slidably disposed inside the fixed cylinder;

[0016] The clamping assembly includes a plurality of clamping blocks, each of which is movably arranged on the sliding cylinder along the radial direction of the sliding cylinder;

[0017] The upper inner wall of the fixed cylinder is formed with an inclined surface that contracts downwards, one end of each clamping block is used to contact the outer periphery of the nozzle of the welding gun, and the other end of each clamping block is used to slide in contact with the inclined surface;

[0018] When the sliding cylinder slides downward relative to the fixed cylinder, the plurality of clamping blocks can move downward with the sliding cylinder and approach each other under the guidance of the inclined surface to clamp the nozzle of the welding gun.

[0019] In one embodiment, the disassembly and assembly mechanism further comprises:

[0020] An elastic member, which is arranged between the bottom of the sliding cylinder and the bottom wall of the fixed cylinder, and is used to provide an upward elastic restoring force to the sliding cylinder;

[0021] The limiting cover body is fixedly connected to the upper opening of the fixed cylinder body, and is used for limiting the upward sliding range of the sliding cylinder body. The limiting cover body is provided with a through hole for inserting a welding gun.

[0022] In one embodiment, the disassembly and assembly mechanism further includes a positioning column, which is arranged on the fixed cylinder and extends radially into the sliding cylinder, and an axially extending sliding groove is arranged on the sliding cylinder corresponding to the positioning column;

[0023] The end of the positioning column extending into the sliding cylinder is used for elastically contacting with the nozzle of the welding gun.

[0024] In one embodiment, the fixed cylinder includes a first cylinder and a second cylinder coaxially arranged up and down, and the inclined surface is provided on the inner wall of the first cylinder;

[0025] The bottom end of the first cylinder is fixedly connected to the top end of the second cylinder, and the bottom end of the second cylinder is rotatably connected to the turntable.

[0026] In one embodiment, the nozzle cleaning mechanism includes a brush head, which is fixedly mounted on the frame and can be inserted downward into the interior of the welding gun nozzle clamped by the clamping assembly;

[0027] The bottom of the fixed cylinder is provided with a first slag discharge port.

[0028] In one embodiment, the conductive nozzle cleaning mechanism includes a cleaning cylinder and a second driving member, and a plurality of brushes, the cleaning cylinder is rotatably arranged on a turntable, the second driving member is fixedly mounted on the turntable, and the second driving member is drivingly connected to the cleaning cylinder to drive the cleaning cylinder to rotate;

[0029] A plurality of brushes are installed inside the cleaning cylinder at intervals, and the conductive nozzle of the welding gun can extend between the plurality of brushes;

[0030] A second slag discharge port is provided at the bottom of the cleaning cylinder.

[0031] In one embodiment, the number of the disassembly and assembly mechanisms is two, and the two disassembly and assembly mechanisms are arranged at intervals on the turntable;

[0032] The positions of the two disassembly and assembly mechanisms correspond one to one with the positions of the fixed position and the nozzle cleaning mechanism, so that when one of the disassembly and assembly mechanisms corresponds up and down with the fixed position, the other disassembly and assembly mechanism corresponds up and down with the nozzle cleaning mechanism.

[0033] In one embodiment, the welding gun cleaning device further comprises a clamping mechanism, which is arranged at a fixed position, and the clamping mechanism is used to clamp and fix the welding gun;

[0034] The clamping mechanism comprises a pneumatic finger and two extended clamps, and the two extended clamps are respectively detachably connected to the two clamping claws of the pneumatic finger.

[0035] In one of the embodiments, the welding gun cleaning device further includes a wire cutting mechanism, which is arranged on the frame, and the wire cutting mechanism is used to cut the welding wire.

[0036] In one embodiment, the wire cutting mechanism includes a bracket, a first cutting blade and a second cutting blade, and a third driving member, the first cutting blade is fixedly mounted on the bracket, and a first cutting notch is provided at one end of the first cutting blade;

[0037] The middle part of the second shearing blade is hinged on the bracket, and the second shearing blade is arranged in a stacked manner with the first shearing blade, and one end of the second shearing blade is provided with a second shearing notch corresponding to the first shearing notch;

[0038] The third driving member is drivingly connected to the other end of the second shearing blade and is used to drive the end of the second shearing blade to rotate around the hinge point so that the second shearing opening and the first shearing opening can switch between mutually offset or mutually overlapping positions.

[0039] In one of the embodiments, the welding gun cleaning device further comprises a liquid spraying mechanism, which is arranged on the frame, and the liquid spraying mechanism is used to spray anti-splashing liquid to the nozzle and the conductive nozzle of the welding gun.

[0040] In one embodiment, the liquid spraying mechanism includes a liquid spraying body, a liquid storage tank and a liquid collecting tank, the liquid spraying body is hollow inside and is provided with a spraying part, the spraying part is provided with a spraying port, a first inlet and a second inlet, the spraying port is used to spray the anti-splashing liquid to the welding gun extending into the liquid spraying body, the first inlet is connected to the liquid storage tank through a pipeline, and the second inlet is connected to an external gas source through a pipeline;

[0041] The liquid collecting tank is connected to the bottom of the liquid spraying body and communicates with the inner cavity of the liquid spraying body.

[0042] It can be seen from the above technical solution that the present invention has at least the following advantages and positive effects:

[0043] In the present invention, the welding gun cleaning device includes a frame, a turntable mechanism, a lifting mechanism, a disassembly mechanism, a nozzle cleaning mechanism and a conductive nozzle cleaning mechanism. Among them, the disassembly mechanism can disassemble or install the nozzle of the welding gun. The nozzle cleaning mechanism can clean the nozzle removed by the disassembly mechanism. The conductive nozzle cleaning mechanism can clean the conductive nozzle of the welding gun. The turntable mechanism can rotate and switch the positions of the disassembly mechanism and the conductive nozzle cleaning mechanism, so that the disassembly mechanism and the conductive nozzle cleaning mechanism can perform operations such as nozzle disassembly, assembly and conductive nozzle cleaning. The lifting mechanism can cooperate with the turntable mechanism to realize the switching of the upper and lower relative positions between the disassembly mechanism, the nozzle cleaning mechanism, the conductive nozzle cleaning mechanism and the nozzle and conductive nozzle of the welding gun, thereby realizing the disassembly, assembly, cleaning of the nozzle and the cleaning of the conductive nozzle.

[0044] Therefore, through the welding gun cleaning device of the present application, the welding gun nozzle can be disassembled, cleaned, assembled and the conductive nozzle can be cleaned, thereby realizing automatic cleaning and replacement of the welding gun. It has a simple structure and is easy to operate, which is conducive to improving the gun cleaning efficiency and saving labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 The figure is a schematic structural diagram of a welding gun cleaning device according to an embodiment of the present invention.

[0046] Figure 2 yes Figure 1 Schematic diagram of the internal structure of the gun cleaning device shown.

[0047] Figure 3 yes Figure 2 The schematic diagram of the structure of the turntable mechanism and the mechanisms connected thereto in the gun cleaning device is shown.

[0048] Figure 4 yes Figure 3 Schematic top view of the structure shown.

[0049] Figure 5 yes Figure 4 Schematic diagram of the AA section of the structure shown.

[0050] Figure 6 yes Figure 5 The structure shown is a schematic diagram of the structure without the welding gun.

[0051] Figure 7 yes Figure 4 Schematic diagram of the BB cross section of the structure shown.

[0052] Figure 8 yes Figure 4 Schematic diagram of the CC cross section of the structure shown.

[0053] Fig. 9 yes Figure 1 The schematic diagram of the structure of the wire cutting mechanism in the gun cleaning device is shown.

[0054] Fig.10 yes Figure 1 The schematic diagram of the structure of the liquid spraying mechanism in the gun cleaning device is shown.

[0055] Fig.11 yes Fig.10 A cross-sectional schematic diagram of the liquid injection mechanism shown.

[0056] The following are the descriptions of the reference numerals:

[0057] 10-gun cleaning device; 20-welding gun; 21-nozzle; 22-conductive nozzle;

[0058] 100-frame; 110-top plate; 120-bottom plate; 130-support column; 140-side box plate;

[0059] 200-clamping mechanism; 210-pneumatic finger; 220-extension clamp;

[0060] 300-turntable mechanism; 310-fixed seat; 320-turntable;

[0061] 400-lifting mechanism;

[0062] 500-disassembly and assembly mechanism;

[0063] 510-fixed cylinder; 511-inclined surface; 512-first cylinder; 513-second cylinder; 514-first slag discharge port;

[0064] 520-clamping assembly; 521-clamping block;

[0065] 530-first driving member; 540-sliding cylinder; 541-sliding groove;

[0066] 550-elastic member; 560-limiting cover body; 570-positioning column;

[0067] 600-nozzle cleaning mechanism; 610-brush head; 620-mounting plate; 630-abutment portion;

[0068] 700-conductive nozzle cleaning mechanism;

[0069] 710-cleaning cylinder; 711-second slag discharge port; 720-second driving member; 730-brush;

[0070] 800-wire cutting mechanism;

[0071] 810-bracket; 820-first cutting blade; 821-first cutting opening;

[0072] 830 - second cutting blade; 840 - third driving member; 850 - collection box;

[0073] 900-liquid spraying mechanism;

[0074] 910-liquid spraying body; 911-spraying part; 912-spraying port; 913-first inlet; 914-second inlet;

[0075] 920-liquid storage tank; 930-liquid collecting tank. DETAILED DESCRIPTION

[0076] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially used for illustration purposes rather than for limiting the present invention.

[0077] In the description of the present application, it should be understood that in the embodiments shown in the drawings, the indications of directions or positional relationships (such as up, down, left, right, front and back, etc.) are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, the indications of these directions also change accordingly.

[0078] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0079] The welding gun cleaning device 10 provided by the present invention is mainly used for cleaning and replacing the nozzle 21 of the welding gun 20 and cleaning the conductive nozzle 22. For example, the welding gun 20 includes a welding gun body and a conductive nozzle 22 disposed at the end of the welding gun body, and a nozzle 21 threadedly connected to the welding gun body and located outside the conductive nozzle 22.

[0080] See also Figure 1 and Figure 2 As shown, the welding gun cleaning device 10 of the embodiment of the present invention comprises a frame 100, a clamping mechanism 200, a turntable mechanism 300 and a lifting mechanism 400, as well as a disassembly mechanism 500, a nozzle cleaning mechanism 600, a conductive nozzle cleaning mechanism 700, a wire cutting mechanism 800 and a liquid spraying mechanism 900. Among them, the frame 100 is used as a carrier of each mechanism, which is mainly used to support and set each mechanism. The clamping mechanism 200 is used to clamp and fix the welding gun 20 at a preset position on the frame 100.

[0081] The turntable mechanism 300 can rotate and switch the positions of the disassembly and assembly mechanism 500 and the conductive nozzle cleaning mechanism 700, so that the disassembly and assembly mechanism 500 and the conductive nozzle cleaning mechanism 700 can perform operations such as disassembly and assembly of the nozzle 21 of the welding gun 20 and cleaning of the conductive nozzle 22. The lifting mechanism 400 is used to cooperate with the turntable mechanism 300 to realize the switching of the relative positions between the disassembly and assembly mechanism 500, the nozzle cleaning mechanism 600, the conductive nozzle cleaning mechanism 700 and the welding gun 20 components.

[0082] Specifically, the disassembly and assembly mechanism 500 is used to disassemble or install the nozzle 21 of the welding gun 20. The nozzle cleaning mechanism 600 is used to clean the nozzle 21 on the disassembly and assembly mechanism 500. The conductive nozzle cleaning mechanism 700 is used to clean the conductive nozzle 22 of the welding gun 20. The wire cutting mechanism 800 is used to cut the welding wire. The liquid spraying mechanism 900 is used to spray the anti-splash liquid on the nozzle 21 and the conductive nozzle 22 of the welding gun 20.

[0083] The specific embodiments of the structures of the various parts of the gun cleaning device 10 of the present application will be described in detail below with reference to the accompanying drawings.

[0084] like Figure 1 and Figure 2 As shown, the frame 100 may be a box-shaped structure. For example, the frame 100 may include a top plate 110 and a bottom plate 120, and a plurality of support columns 130 disposed between the top plate 110 and the bottom plate 120. Among them, an installation space for installing and setting the turntable mechanism 300, the lifting mechanism 400, the disassembly mechanism 500, the nozzle cleaning mechanism 600 and the conductive nozzle cleaning mechanism 700 may be formed between the top plate 110 and the bottom plate 120.

[0085] like Figure 1As shown, the frame 100 may further include a plurality of side box plates 140. The plurality of side box plates 140, the top plate 110 and the bottom plate 120 may be enclosed together to form a relatively closed installation space. Thus, when cleaning the welding gun 20, noise can be effectively isolated, and dust, smoke, etc. generated during the cleaning process can be effectively isolated.

[0086] The top of the frame 100 is provided with a fixing position for fixing the welding gun 20. Specifically, a socket for inserting the welding gun 20 may be provided on the top plate 110, and the position of the socket is the fixing position for fixing the welding gun 20.

[0087] See also Figure 1 As shown, in the embodiment of the present application, the clamping mechanism 200 can be fixedly mounted on the top plate 110 of the frame 100. The clamping mechanism 200 can be arranged at the socket of the top plate 110 mentioned above. The clamping mechanism 200 can clamp and fix the welding gun 20 so that the welding gun 20 remains fixed at the fixed position.

[0088] like Figure 1 As shown, in one embodiment, the clamping mechanism 200 may include a pneumatic finger 210. The pneumatic finger 210 may use compressed air as a power source to achieve the purpose of clamping or grabbing a workpiece. The pneumatic finger 210 has the advantages of safe and reliable use, simple structure, and low cost.

[0089] Specifically, the pneumatic finger 210 has two clamping jaws for clamping the workpiece. Further, in one embodiment, the clamping mechanism 200 may also include two extension clamps 220, and the two extension clamps 220 are detachably connected to the two clamping jaws. By providing the extension clamps 220, the length of the clamping jaws of the pneumatic finger 210 can be extended, and the clamping range of the pneumatic finger 210 can be widened.

[0090] It is understandable that in other embodiments, the clamping mechanism 200 may also be other structures capable of achieving clamping, such as an electric clamp and the like.

[0091] In the embodiment of the present application, the welding gun cleaning device 10 includes a clamping mechanism 200 for clamping and fixing the welding gun 20. However, the present application is not limited thereto, and in other embodiments, the welding gun cleaning device 10 may also omit the clamping mechanism 200. When the welding gun 20 needs to be cleaned, the welding gun 20 can be positioned and held at a fixed position at the top of the frame 100 by the welding robot, which can be determined according to the specific situation.

[0092] See also Figure 2 As shown, in the embodiment of the present application, the turntable mechanism 300 is disposed in the installation space below the top plate 110. Specifically, the turntable mechanism 300 includes a fixing seat 310, and the fixing seat 310 is disposed on the frame 100 so as to be movable up and down through a lifting mechanism 400.

[0093] In one embodiment, the lifting mechanism 400 may be a structure such as a cylinder or a hydraulic cylinder. For example, the cylinder body of the cylinder may be fixedly mounted on the bottom plate 120 of the frame 100, and the end of the piston rod of the cylinder may be fixed to the bottom surface of the fixing seat 310. Thus, the action of the cylinder can drive the fixing seat 310 to perform lifting motion, thereby driving the turntable mechanism 300 to perform lifting motion as a whole.

[0094] It is understandable that the lifting mechanism 400 may further include a lifting frame, and the fixing seat 310 is connected to the lifting frame in a lifting and sliding manner. The lifting frame may play a role in slidingly supporting the turntable mechanism 300 as a whole.

[0095] Of course, in other embodiments, the lifting mechanism 400 may also be other structures that can achieve the purpose of lifting, such as a screw lifting device and the like.

[0096] like Figure 2 As shown, the turntable mechanism 300 also includes a turntable 320 disposed above the fixed seat 310, and the turntable 320 is rotatably connected to the fixed seat 310 along the horizontal direction. For example, the turntable mechanism 300 may include a rotating assembly disposed between the turntable 320 and the fixed seat 310. The turntable 320 is rotatably connected to the fixed seat 310 through the rotating assembly. In addition, the rotating assembly can drive the turntable 320 to rotate. Among them, the rotating assembly can be an electric rotating table.

[0097] Alternatively, in other embodiments, the slewing assembly may include a slewing gear and a slewing driver. The slewing gear may be fixed to the bottom of the turntable 320, and the slewing driver may be fixed to the fixing base 310 and connected to the slewing gear to drive the slewing gear to rotate, thereby driving the turntable to rotate. This application does not make any specific limitation on this.

[0098] See also Figure 2 As shown, in the embodiment of the present application, the disassembly and assembly mechanism 500 is arranged on the turntable 320. Since the turntable 320 can rotate horizontally, the turntable 320 can drive the disassembly and assembly mechanism 500 thereon to rotate horizontally relative to the frame 100. Thus, the disassembly and assembly mechanism 500 can move to a position corresponding to the upper and lower positions of the welding gun 20 at the fixed position as required, so as to achieve the purpose of disassembling and assembling the nozzle 21 of the welding gun 20.

[0099] For example, see Figures 4 to 6 As shown, the disassembly and assembly mechanism 500 includes a fixed cylinder 510, a clamping assembly 520 and a first driving member 530. The fixed cylinder 510 is rotatably arranged on the turntable 320. For example, the fixed cylinder 510 can be a cylindrical structure. The top end of the fixed cylinder 510 can be an opening for inserting the end of the welding gun 20.

[0100] The clamping assembly 520 is disposed on the fixed cylinder 510, and is used to clamp or release the nozzle 21 of the welding gun 20. The first driving member 530 is fixedly mounted on the turntable 320 and is drivingly connected to the fixed cylinder 510, and the first driving member 530 is used to drive the fixed cylinder 510 to rotate. The first driving member 530 can be a motor, and the motor can drive the fixed cylinder 510 to rotate through a gear set. For example, a driving gear can be fixedly disposed on the output shaft of the motor, and a driven gear can be fixedly connected to the bottom end of the fixed cylinder 510, and the driven gear and the driving gear are meshed with each other. Therefore, the motor can drive the driven gear to rotate through the driving gear, thereby driving the fixed cylinder 510 to rotate.

[0101] When the disassembly and assembly mechanism 500 of this embodiment is in use, the end of the welding gun 20 is inserted into the fixed cylinder 510, and the clamping assembly 520 clamps the nozzle 21. The first driving member 530 is then used to drive the fixed cylinder 510 to rotate, thereby driving the nozzle 21 to rotate and achieving the purpose of disassembling the nozzle 21.

[0102] There are many ways for the clamping assembly 520 to clamp or release the nozzle 21. Figure 5 As shown, in one embodiment, the disassembly and assembly mechanism 500 further includes a sliding cylinder 540, which is slidably disposed inside the fixed cylinder 510. The clamping assembly 520 includes a plurality of clamping blocks 521, each of which is movably disposed on the sliding cylinder 540 along the radial direction of the sliding cylinder 540. The upper inner wall of the fixed cylinder 510 is formed with an inclined surface 511 that contracts downward, one end of each clamping block 521 is used to contact the outer periphery of the nozzle 21 of the welding gun 20, and the other end of each clamping block 521 is used to slidably contact the inclined surface 511.

[0103] like Figure 6 As shown, the inclined surface 511 on the upper part of the fixed cylinder 510 gradually shrinks from top to bottom, that is, the radial dimension of the upper inner wall of the fixed cylinder 510 gradually decreases from top to bottom. When each clamping block 21 slides downward along the inclined surface 511, each clamping block 21 will move radially inward at the same time.

[0104] For example, Figure 6 As shown, a receiving groove 511a for accommodating the end of each clamping block 521 may be provided at the inclined surface 511 of the fixed cylinder 510, and the end of each clamping block 521 can slide up and down along the receiving groove 511a. That is, the receiving groove 511a can limit and guide the clamping block 521 to slide up and down.

[0105] In this embodiment, when the welding gun 20 is inserted into the fixed cylinder 510, the front end of the nozzle 21 of the welding gun 20 contacts the sliding cylinder 540 and drives the sliding cylinder 540 to move downward, so that each clamping block 521 can move downward with the sliding cylinder 540; at the same time, each clamping block 521 can shrink inwardly along the radial direction of the sliding cylinder 540 and approach each other under the guidance of the inclined surface 511, so as to clamp the nozzle 21.

[0106] See also Figure 5 In one embodiment, the disassembly and assembly mechanism 500 further includes an elastic member 550 disposed between the bottom of the sliding cylinder 540 and the bottom wall of the fixed cylinder 510. The elastic member 550 is used to provide an upward elastic restoring force to the sliding cylinder 540.

[0107] The elastic member 550 may be a compression spring, a disc spring, etc. When the front end of the nozzle 21 contacts the sliding cylinder 540 and drives the sliding cylinder 540 to move downward, the elastic member 550 accumulates elastic restoring force. When the disassembly mechanism 500 is separated from the welding gun 20, the sliding cylinder 540 can be reset upward under the elastic restoring force of the elastic member 550, so that the multiple clamping blocks 521 can automatically release the nozzle 21.

[0108] In addition, the setting of the elastic member 550 allows the sliding cylinder 540 to have a certain amount of floating in the fixed cylinder 510, so that the multiple clamping blocks 521 also have a certain amount of floating. Therefore, when the fixed cylinder 510 is rotated to remove the nozzle 21, the multiple clamping blocks 521 can clamp the nozzle 21 so that the nozzle 21 can be smoothly removed from the welding gun 20.

[0109] Furthermore, the disassembly and assembly mechanism 500 further includes a limiting cover 560. The limiting cover 560 is fixedly connected to the upper opening of the fixed cylinder 510. The limiting cover 560 may be provided with a through hole for inserting the welding gun 20. In this embodiment, the limiting cover 560 is used to limit the upward sliding range of the sliding cylinder 540, so that the limiting cover 560 can ensure that the sliding cylinder 540 slides up and down inside the fixed cylinder 510, thereby preventing the sliding cylinder 540 from upwardly separating from the fixed cylinder 510, thereby improving the reliability of the disassembly and assembly mechanism 500.

[0110] In one embodiment, the fixed cylinder 510 includes a first cylinder 512 and a second cylinder 513 coaxially arranged up and down. The inclined surface 511 is provided on the inner wall of the first cylinder 512. The bottom end of the first cylinder 512 is fixedly connected to the top end of the second cylinder 513, and the bottom end of the second cylinder 513 is rotatably connected to the turntable 320. In this embodiment, by setting the fixed cylinder 510 to include a structure of the first cylinder 512 and the second cylinder 513, it is convenient to install and arrange the internal components of the fixed cylinder 510, and it is conducive to reducing the manufacturing cost of the device.

[0111] like Figure 6 As shown, in one embodiment, the disassembly and assembly mechanism 500 further includes a positioning column 570, which is disposed on the fixed cylinder 510 and radially extends into the sliding cylinder 540. The sliding cylinder 540 is provided with an axially extending sliding groove 541 corresponding to the positioning column 570.

[0112] There may be a plurality of positioning posts 570, which are arranged at intervals along the circumference of the fixed cylinder 510. In this embodiment, the positioning posts 570 are provided to ensure that the sliding cylinder 540 can only slide up and down in the fixed cylinder 510 along the axial direction, and ensure that the sliding cylinder 540 and the fixed cylinder 510 cannot rotate relative to each other.

[0113] It is understood that in other embodiments, the positioning column 570 may be omitted. At the same time, the surfaces of the fixed cylinder 510 and the sliding cylinder 540 that contact each other are provided with a limiting groove and a limiting block, and the limiting groove and the limiting block cooperate with each other to limit the sliding cylinder 540 from rotating in the fixed cylinder 510.

[0114] In one embodiment, the end of the positioning column 570 extending into the sliding cylinder 540 is used to elastically contact with the nozzle 21 of the welding gun 20. For example, the positioning column 570 can be a spring plunger. The spring plunger can not only limit the sliding cylinder 540 to slide up and down in the fixed cylinder 510 along the axial direction, but also can always maintain elastic contact with the outer periphery of the nozzle 21 of the welding gun 20, thereby providing a certain clamping force to the nozzle 21.

[0115] In this embodiment, when the sliding cylinder 540 is reset upward under the action of the elastic member 550, the multiple clamping blocks 521 move upward along with the sliding cylinder 540, and at this time, the multiple clamping blocks 521 cannot clamp the nozzle 21. However, because the spring plunger always has a certain clamping force on the nozzle 21, the nozzle 21 can remain fixed in the fixed cylinder 510, so that the disassembly mechanism 500 moves with the nozzle 21 to the nozzle cleaning mechanism 600.

[0116] It is understandable that in other embodiments, a flexible structure such as a flexible rubber pad may be provided at the end of the positioning column 570 extending into the sliding cylinder 540 , so that the end of the positioning column 570 can be in elastic contact with the nozzle 21 .

[0117] See also Figure 2As shown, in the embodiment of the present application, the nozzle cleaning mechanism 600 is arranged above the rotating disk 320. Since the rotating disk 320 can rotate horizontally, the rotating disk 320 can drive the disassembly and assembly mechanism 500 thereon to rotate horizontally relative to the frame 100. Therefore, the disassembly and assembly mechanism 500 can move to a position corresponding to the upper and lower positions of the nozzle cleaning mechanism 600 as required, and the nozzle cleaning mechanism 600 can clean the nozzle 21 on the disassembly and assembly mechanism 500.

[0118] like Figure 7 As shown, in one embodiment, the nozzle cleaning mechanism 600 includes a brush head 610, and the brush head 610 is fixedly mounted on the frame 100. For example, the brush head 610 can be fixedly mounted on the top plate 110 of the frame 100 through a mounting plate 620. Specifically, a hole for penetrating the brush head 610 is provided on the mounting plate 620. The upper end of the brush head 610 is passed through the hole, and the limiting nut is used to be threadedly connected with the part of the brush head 610 that passes through the top surface of the mounting plate 620, so that the fixed installation of the brush head 610 can be achieved.

[0119] Furthermore, a contact portion 630 may be provided on the bottom surface of the mounting plate 620. The contact portion 630 is disposed around the outer periphery of the upper end of the brush head 610. The contact portion 630 is used to contact the top end of the nozzle 21. Preferably, the contact portion 630 may be a bearing.

[0120] In this embodiment, when the disassembly mechanism 500 rotates and disassembles the nozzle 21, the lifting mechanism 400 can drive the turntable mechanism 300 to descend as a whole, so that the fixed cylinder 510 descends accordingly to separate the nozzle 21 from the welding gun 20. Subsequently, the turntable 320 rotates to move the disassembly mechanism 500 to a position corresponding to the upper and lower positions of the nozzle cleaning mechanism 600, and the lifting mechanism 400 operates to cause the turntable mechanism 300 to rise as a whole, so that the brush head 610 can extend into the fixed cylinder 510 to clean the nozzle 21 in the fixed cylinder 510.

[0121] Specifically, when the lifting mechanism 400 drives the turntable mechanism 300 to rise as a whole, the top of the nozzle 21 in the fixed cylinder 510 first abuts against the abutment portion 630, so when the turntable mechanism 300 continues to rise, the nozzle 21 can be clamped by the multiple clamping blocks 520. At the same time, the brush head 610 can be inserted into the nozzle 21 clamped by the multiple clamping blocks 521. Then, the fixed cylinder 510 is driven to rotate by the first driving member 530, so that the nozzle 21 rotates around the brush head 610, so that the brush head 610 can clean the inner surface of the nozzle 21.

[0122] like Figure 7As shown, preferably, a first slag discharge port 514 is provided at the bottom of the fixed cylinder 510. By providing the first slag discharge port 514, the welding slag dropped by the brush head 610 cleaning nozzle 21 can be directly discharged downward, thereby avoiding the accumulation of welding slag, ensuring the cleanliness of the interior of the fixed cylinder 510, and ensuring the normal operation of the disassembly and assembly mechanism 500.

[0123] like Figure 7 As shown, preferably, a through hole can be opened on the driven gear at the bottom end of the fixed cylinder 510 corresponding to the first slag discharge port 514 to facilitate the falling of welding slag.

[0124] See also Figure 2 In one embodiment, there are two disassembly and assembly mechanisms 500, and the two disassembly and assembly mechanisms 500 are arranged at intervals on the turntable 320. The positions of the two disassembly and assembly mechanisms 500 correspond to the positions of the fixed position and the nozzle cleaning mechanism 600 one by one, so that when one of the disassembly and assembly mechanisms 500 corresponds to the fixed position up and down, the other disassembly and assembly mechanism 500 corresponds to the nozzle cleaning mechanism 600 up and down.

[0125] In this embodiment, when one of the disassembly and assembly mechanisms 500 moves to a position corresponding to the upper and lower positions of the nozzle cleaning mechanism 600, the other disassembly and assembly mechanism 500 just moves to the lower part of the welding gun 20 clamped by the clamping mechanism 200 at the fixed position. Therefore, while the brush head 610 cleans the nozzle 21 removed from one disassembly and assembly mechanism 500, the other disassembly and assembly mechanism 500 can assemble the spare nozzle loaded therein to the welding gun 20 from which the nozzle 21 has been removed, thereby replacing the nozzle 21. Thus, the gun cleaning device 10 of the present application can quickly clean and replace the nozzle 21, effectively improving efficiency and saving time.

[0126] See also Figure 2 As shown, in the embodiment of the present application, the contact tip cleaning mechanism 700 is disposed on the turntable 320. Since the turntable 320 can rotate horizontally, the turntable 320 can drive the contact tip cleaning mechanism 700 thereon to rotate horizontally relative to the frame 100. Thus, the contact tip cleaning mechanism 700 can move to a position corresponding to the upper and lower positions of the welding gun 20 fixed at the fixed position as required, so as to clean the contact tip 22 of the welding gun 20.

[0127] like Figure 8 As shown, in one embodiment, the contact tip cleaning mechanism 700 includes a cleaning cylinder 710 , a second driving member 720 , and a plurality of brushes 730 .

[0128] The cleaning cylinder 710 is rotatably arranged on the turntable 320, and the second driving member 720 is fixedly mounted on the turntable 320. The second driving member 720 is drivingly connected to the cleaning cylinder 710 to drive the cleaning cylinder 710 to rotate. The second driving member 720 can be a motor, and the motor can drive the cleaning cylinder 710 to rotate through a gear set. For example, a driving gear can be fixedly arranged on the output shaft of the motor, and a driven gear can be fixedly connected to the bottom end of the cleaning cylinder 710, and the driven gear and the driving gear are meshed with each other. Therefore, the motor can drive the driven gear to rotate through the driving gear, thereby driving the cleaning cylinder 710 to rotate.

[0129] like Figure 8 As shown, a plurality of brushes 730 are installed in the cleaning cylinder 710 at intervals. The plurality of brushes 730 are used to clean the welding gun 20 conductive tip 22 extending into the cleaning cylinder 710.

[0130] Specifically, when the disassembly mechanism 500 removes the nozzle 21, the lifting mechanism 400 can drive the turntable mechanism 300 to descend as a whole, so that the fixed cylinder 510 descends accordingly to separate the nozzle 21 from the welding gun 20. At this time, the conductive tip 22 of the welding gun 20 clamped on the clamping mechanism 200 is exposed. Subsequently, the turntable 320 rotates to move the conductive tip cleaning mechanism 700 to a position corresponding to the upper and lower positions of the welding gun 20 on the clamping mechanism 200, and the lifting mechanism 400 moves to make the turntable mechanism 300 rise as a whole, so that the conductive tip 22 can extend between the multiple brushes 730. Then the second driving member 720 can drive the cleaning cylinder 710 to rotate, so that the multiple brushes 730 rotate around the conductive tip 22, thereby achieving the cleaning of the welding slag on the outer surface of the conductive tip 22.

[0131] In this embodiment, the cleaning cylinder 710 rotates to drive the multiple brushes 730 therein to rotate around the conductive nozzle 22, so that the conductive nozzle 22 can be effectively cleaned. In addition, the conductive nozzle cleaning mechanism 700 has a simple structure, which is conducive to reducing the manufacturing cost of the device.

[0132] like Figure 8 As shown, in one embodiment, a second slag discharge port 711 is provided at the bottom of the cleaning cylinder 710. By providing the second slag discharge port 711, the welding slag dropped by the plurality of brushes 730 when cleaning the contact tip 22 can be directly discharged downward, thereby avoiding the accumulation of welding slag, ensuring the cleanliness of the interior of the cleaning cylinder 710, and ensuring the normal operation of the contact tip cleaning mechanism 700.

[0133] like Figure 8 As shown, preferably, a through hole can be opened on the driven gear at the bottom end of the cleaning cylinder 710 corresponding to the second slag discharge port 711 to facilitate the falling of welding slag.

[0134] See also Figure 1As shown, in the embodiment of the present application, the wire cutting mechanism 800 is arranged on the frame 100. For example, the wire cutting mechanism 800 can be fixedly mounted on the upper side wall of the frame 100.

[0135] like Fig. 9 As shown, the wire cutting mechanism 800 may include a bracket 810, a first cutting blade 820, a second cutting blade 830, and a third driving member 840. The first cutting blade 820 is fixedly mounted on the bracket 810, and a first cutting notch 821 is provided at one end of the first cutting blade 820.

[0136] The middle part of the second shearing blade 830 is hinged on the bracket 810. For example, a rotating hole can be opened in the middle part of the second shearing blade 830, and a pin is fixed on the bracket 810, and the pin is passed through the rotating hole, so that the second shearing blade 830 can be hingedly connected to the bracket 810.

[0137] like Fig. 9 As shown, the second shearing blade 830 is stacked with the first shearing blade 820 , and a second shearing cutout is provided at one end of the second shearing blade 830 corresponding to the first shearing cutout 821 .

[0138] The third driving member 840 is drivingly connected to the other end of the second shear blade 830, and is used to drive the end of the second shear blade 830 to rotate around the hinge point, so that the second shearing opening and the first shearing opening 821 are switched between mutually misaligned or mutually overlapped positions. The third driving member 840 can be a cylinder. The end of the piston rod of the cylinder is hinged to the end of the second shear blade 830.

[0139] In this embodiment, when the wire cutting mechanism 800 is working, the welding wire exposed by the welding gun 20 is inserted into the first shearing cut 821 and the second shearing cut, and the cylinder piston rod extends to drive the second shearing blade 830 to rotate around the pin shaft, so that the second shearing cut is misaligned with the first shearing cut 821, thereby achieving the cutting of the welding wire.

[0140] like Fig. 9 As shown, the wire cutting mechanism 800 may further include a collecting box 850, which may be fixedly mounted on the bracket 810 and correspondingly arranged below the first cutting opening 821 and the second cutting opening. The collecting box 850 is used to collect the welding wire that is cut and dropped.

[0141] See also Figure 2 As shown, in the embodiment of the present application, the liquid spraying mechanism 900 is arranged on the frame 100. Fig.10As shown, the liquid spraying mechanism 900 may include a liquid spraying body 910, a liquid storage tank 920 and a liquid collecting tank 930. The liquid spraying body 910 may be fixedly mounted on the upper side wall of the frame 100. For example, the liquid spraying body 910 may be mounted on the same side of the frame 100 as the wire cutting mechanism 800, so that the welding gun 20 can be quickly moved to the liquid spraying mechanism 900 after the welding wire is cut. The liquid storage tank 920 may be fixedly mounted on the bottom plate 120 of the frame 100.

[0142] like Fig.11 As shown, the liquid spraying body 910 is hollow inside and is provided with a spraying portion 911, and the spraying portion 911 is provided with a spraying port 912, a first inlet 913 and a second inlet 914. The spraying port 912 is used to spray the anti-splashing liquid to the welding gun 20 extending into the liquid spraying body 910, the first inlet 913 is connected to the liquid storage tank 920 through a pipeline, and the second inlet 914 is connected to an external gas source through a pipeline.

[0143] The external air source may be an air pump, which can be connected to the second inlet 914 through a pipeline to provide compressed air to the injection portion 911 .

[0144] like Fig.11 As shown, the liquid collecting tank 930 is connected to the bottom of the liquid spraying body 910 and communicates with the inner cavity of the liquid spraying body 910 .

[0145] In this embodiment, when the liquid spraying mechanism 900 is working, the end of the welding gun 20 is inserted into the liquid spraying body 910, and the air pump is turned on, so that the compressed air enters the injection part 911 from the second inlet 914. The continuous introduction of compressed air generates negative pressure in the injection part 911, so that the injection part 911 can continuously absorb the anti-splashing liquid in the liquid storage tank 920, and the anti-splashing liquid and the compressed air are mixed in the injection part 911, and sprayed from the injection port 912 onto the nozzle 21 and the conductive nozzle 22 of the welding gun 20. Excess anti-splashing liquid can fall directly into the liquid collecting tank 930. The liquid spraying mechanism 900 of the present application has a simple structure, which can spray the anti-splashing liquid on the welding gun 20, and is easy to operate; and the residual liquid can also be collected to avoid waste.

[0146] See also Figure 2 As shown, the welding gun cleaning process of the welding gun cleaning device 10 of the embodiment of the present application is roughly as follows:

[0147] First, manually or by using a robot, align the welding gun 20 and vertically insert it into the fixed cylinder 510 of the disassembly mechanism 500, and the front end of the nozzle 21 of the welding gun 20 contacts the sliding cylinder 540 and drives it to move downward. Each clamping block 521 moves downward with the sliding cylinder 540. At the same time, under the action of the inclined surface 511, each clamping block 521 also produces a radial inward displacement along the sliding cylinder 540, so that multiple clamping blocks 521 can clamp the nozzle 21 of the welding gun 20. Then, the clamping mechanism 200 is actuated to clamp the main body of the welding gun 20 to keep the welding gun 20 in the current position. Then, the first driving member 530 drives the fixed sleeve to rotate, thereby realizing the disassembly of the nozzle 21 of the welding gun 20.

[0148] After the nozzle 21 is disassembled, the lifting mechanism 400 drives the turntable mechanism 300 to descend, so that the nozzle 21 is separated from the welding gun 20. Then the turntable 320 rotates 90° clockwise, so that the cleaning cylinder 710 of the conductive nozzle cleaning mechanism 700 is aligned with the conductive nozzle 22 at the end of the welding gun 20. The lifting mechanism 400 drives the turntable mechanism 300 to rise, so that the cleaning cylinder 710 is sleeved on the conductive nozzle 22 of the welding gun 20. At this time, the conductive nozzle 22 of the welding gun 20 extends between the multiple brushes 730 in the cleaning cylinder 710. Then, the second driving member 720 drives the cleaning cylinder 710 to rotate, so that the multiple brushes 730 can brush and clean the welding slag on the conductive nozzle 22. During the cleaning process of the conductive nozzle 22, the cleaned and dropped welding slag can be discharged from the second slag discharge port 711 at the bottom of the cleaning cylinder 710.

[0149] After the cleaning of the conductive nozzle 22 is completed, the lifting mechanism 400 descends to separate the cleaning cylinder 710 from the welding gun 20, and then the turntable 320 rotates 90° clockwise again, so that the disassembly mechanism 500 equipped with the disassembled nozzle 21 is aligned with the nozzle cleaning mechanism 600. The lifting mechanism 400 drives the turntable mechanism 300 to rise, and the abutment portion 630 of the nozzle cleaning mechanism 600 contacts the top of the nozzle 21 to provide pressure, so that the nozzle 21 moves downward relatively and is clamped. After the turntable mechanism 300 rises to its position, the brush head 610 of the nozzle cleaning mechanism 600 extends into the interior of the nozzle 21. Subsequently, the first driving member 530 drives the fixed cylinder 510 to rotate, driving the nozzle 21 to rotate around the brush head 610, thereby realizing the cleaning of the welding slag of the nozzle 21. During the cleaning process of the nozzle 21, the cleaned welding slag can be discharged from the first slag discharge port 514 at the bottom of the fixed cylinder 510. After the nozzle 21 is cleaned, the lifting mechanism 400 descends, and the nozzle 21 is separated from the brush head 610 under the clamping force of the spring plunger.

[0150] Since two disassembly and assembly mechanisms 500 are evenly distributed on the turntable 320, when the above-mentioned disassembled nozzle 21 is cleaned, the other disassembly and assembly mechanism 500 can align the loaded spare nozzle with the welding gun 20, and under the drive of the first driving member 530, the spare nozzle is rotated and screwed into the welding gun 20, thereby realizing the replacement of the nozzle 21.

[0151] After the nozzle 21 is replaced, the clamping mechanism 200 is released, and the robot drives the welding gun 20 to move to the wire cutting mechanism 800 to cut the welding wire. When the wire cutting mechanism 800 is working, the robot drives the welding gun 20 to move and causes the welding wire of the welding gun 20 to be clamped into the first cutting notch 821 and the second cutting notch. The third driving member 840 extends to cause the second cutting blade 830 to rotate around the pin shaft, so that the second cutting notch is misaligned with the first cutting notch 821 to complete the cutting of the welding wire. The cut welding wire can fall into the collection box 850.

[0152] After completing the wire cutting, the robot drives the welding gun 20 to move to the liquid spraying mechanism 900 to spray the anti-splashing liquid. When the liquid spraying mechanism 900 is working, the robot drives the welding gun 20 to move and inserts the nozzle 21 into the inner cavity of the liquid spraying body 910. Turn on the air pump so that the compressed air enters the injection part 911 from the second inlet 914. The continuous flow of compressed air generates a negative pressure in the injection part 911, so that the injection part 911 can continuously absorb the anti-splashing liquid in the liquid storage tank 920, and the anti-splashing liquid and the compressed air are mixed in the injection part 911 and sprayed from the injection port 912 onto the nozzle 21 and the conductive nozzle 22 of the welding gun 20. Excess anti-splashing liquid can fall directly into the liquid collecting tank 930.

[0153] So far, the gun cleaning device 10 has completed the cleaning and replacement of the nozzle 21 of the welding gun 20 and the cleaning process of the conductive tip 22 .

[0154] It should be noted that when the nozzle 21 of the welding gun 20 needs to be cleaned or replaced again, the rotation direction of the turntable 320 can be opposite to the last time to avoid entanglement of the cables inside the device.

[0155] The welding gun cleaning device of the present application includes a frame, a turntable mechanism, a lifting mechanism, a disassembly and assembly mechanism, a nozzle cleaning mechanism and a conductive nozzle cleaning mechanism. Among them, the disassembly and assembly mechanism can disassemble or install the nozzle of the welding gun. The nozzle cleaning mechanism can clean the nozzle on the disassembly and assembly mechanism. The conductive nozzle cleaning mechanism can clean the conductive nozzle of the welding gun. The turntable mechanism can rotate and switch the positions of the disassembly and assembly mechanism and the conductive nozzle cleaning mechanism, so that the disassembly and assembly mechanism and the conductive nozzle cleaning mechanism can perform operations such as nozzle disassembly, assembly and conductive nozzle cleaning. The lifting mechanism can cooperate with the turntable mechanism to realize the switching of the upper and lower relative positions between the disassembly and assembly mechanism, the nozzle cleaning mechanism, the conductive nozzle cleaning mechanism and the nozzle and conductive nozzle of the welding gun, thereby realizing the disassembly, assembly, cleaning of the nozzle and cleaning of the conductive nozzle.

[0156] Therefore, through the welding gun cleaning device of the present application, the welding gun nozzle can be disassembled, cleaned, assembled and the conductive nozzle can be cleaned, thereby realizing automatic cleaning and nozzle replacement of the welding gun. It has a simple structure and is easy to operate, which is conducive to improving the gun cleaning efficiency and saving labor costs.

[0157] The welding gun cleaning device of the present application integrates the disassembly and assembly, cleaning of the welding gun nozzle, cleaning of the conductive nozzle, cutting of the welding wire and spraying of anti-splash liquid on the welding gun, thereby greatly simplifying the turnover process and improving the efficiency of gun cleaning.

[0158] The above embodiments are merely exemplary descriptions of the structures. The structures in the embodiments are not fixed combination structures. In the absence of structural conflicts, the structures in multiple embodiments can be used in any combination.

[0159] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A welding gun cleaning device, characterized in that: include: A frame, the top of which is provided with a fixing position for fixing a welding gun; A turntable mechanism is arranged below the fixed position, the turntable mechanism comprises a fixed seat and a turntable, the fixed seat is arranged on the frame so as to be movable up and down through a lifting mechanism, the turntable is arranged above the fixed seat and is rotatably connected to the fixed seat in a horizontal direction; A disassembly and assembly mechanism, which is arranged on the turntable, and driven by the turntable, the disassembly and assembly mechanism can correspond to the welding gun fixed at the fixed position up and down, and the disassembly and assembly mechanism is used to disassemble or install the nozzle of the welding gun; A nozzle cleaning mechanism is arranged above the rotating disk, and the disassembly and assembly mechanism can correspond to the nozzle cleaning mechanism up and down under the drive of the rotating disk, and the nozzle cleaning mechanism is used to clean the nozzle on the disassembly and assembly mechanism; A conductive nozzle cleaning mechanism is arranged on the turntable. The conductive nozzle cleaning mechanism can correspond to the welding gun fixed at the fixed position up and down under the drive of the turntable. The conductive nozzle cleaning mechanism is used to clean the conductive nozzle of the welding gun.

2. The welding gun cleaning device according to claim 1, characterized in that: The disassembly and assembly mechanism comprises: A fixed cylinder, which is rotatably arranged on the rotating disk; A clamping assembly, which is arranged on the fixed cylinder, and is used to clamp or loosen the nozzle of the welding gun; The first driving member is fixedly mounted on the turntable, and the first driving member is drivingly connected to the fixed cylinder to drive the fixed cylinder to rotate.

3. The welding gun cleaning device according to claim 2, characterized in that: The disassembly and assembly mechanism comprises a sliding cylinder which is slidably arranged inside the fixed cylinder; The clamping assembly comprises a plurality of clamping blocks, each of which is movably arranged on the sliding cylinder along the radial direction of the sliding cylinder; The upper inner wall of the fixed cylinder is formed with an inclined surface that contracts downward, one end of each clamping block is used to contact the outer periphery of the nozzle of the welding gun, and the other end of each clamping block is used to slide in contact with the inclined surface; When the sliding cylinder slides downward relative to the fixed cylinder, the plurality of clamping blocks can move downward with the sliding cylinder and approach each other under the guidance of the inclined surface to clamp the nozzle of the welding gun.

4. The welding gun cleaning device according to claim 3, characterized in that: The disassembly and assembly mechanism also includes: an elastic member, which is arranged between the bottom of the sliding cylinder and the bottom wall of the fixed cylinder, and is used to provide an upward elastic restoring force to the sliding cylinder; A limit cover body is fixedly connected to the upper end opening of the fixed cylinder body, and the limit cover body is used to limit the upward sliding range of the sliding cylinder body. The limit cover body is provided with a through hole for inserting a welding gun.

5. The welding gun cleaning device according to claim 3, characterized in that: The disassembly and assembly mechanism further includes a positioning post, which is arranged on the fixed cylinder and radially extends into the sliding cylinder, and an axially extending sliding groove is arranged on the sliding cylinder corresponding to the positioning post; The end of the positioning column extending into the sliding cylinder is used for elastically contacting with the nozzle of the welding gun.

6. The welding gun cleaning device according to claim 3, characterized in that: The fixed cylinder includes a first cylinder and a second cylinder coaxially arranged up and down, and the inclined surface is provided on the inner wall of the first cylinder; The bottom end of the first cylinder is fixedly connected to the top end of the second cylinder, and the bottom end of the second cylinder is rotatably connected to the turntable.

7. The welding gun cleaning device according to claim 2, characterized in that: The nozzle cleaning mechanism comprises a brush head, which is fixedly mounted on the frame and can be inserted downward into the interior of the welding gun nozzle clamped by the clamping assembly; A first slag discharge port is provided at the bottom of the fixed cylinder.

8. The welding gun cleaning device according to claim 1, characterized in that: The conductive nozzle cleaning mechanism comprises a cleaning cylinder and a second driving member, and a plurality of brushes, wherein the cleaning cylinder is rotatably arranged on the turntable, the second driving member is fixedly mounted on the turntable, and the second driving member is drivingly connected to the cleaning cylinder to drive the cleaning cylinder to rotate; A plurality of the brushes are installed inside the cleaning cylinder at intervals, and the conductive nozzle of the welding gun can extend between the plurality of the brushes; A second slag discharge port is provided at the bottom of the cleaning cylinder.

9. The welding gun cleaning device according to claim 1, characterized in that: There are two disassembly and assembly mechanisms, and the two disassembly and assembly mechanisms are arranged on the turntable at intervals; The positions of the two disassembly and assembly mechanisms correspond one to one with the positions of the fixed position and the nozzle cleaning mechanism, so that when one of the disassembly and assembly mechanisms corresponds vertically to the fixed position, the other disassembly and assembly mechanism corresponds vertically to the nozzle cleaning mechanism.

10. The welding gun cleaning device according to any one of claims 1 to 9, characterized in that: It also includes a clamping mechanism, which is arranged at the fixed position, and the clamping mechanism is used to clamp and fix the welding gun; The clamping mechanism comprises a pneumatic finger and two extended clamps, and the two extended clamps are respectively detachably connected to the two clamping claws of the pneumatic finger.

11. The welding gun cleaning device according to any one of claims 1 to 9, characterized in that: It also includes a wire cutting mechanism, which is arranged on the frame and is used for cutting the welding wire.

12. The welding gun cleaning device according to claim 11, characterized in that: The wire cutting mechanism comprises a bracket, a first cutting blade, a second cutting blade, and a third driving member, wherein the first cutting blade is fixedly mounted on the bracket, and a first cutting notch is provided at one end of the first cutting blade; The middle part of the second shearing blade is hinged on the bracket, and the second shearing blade is arranged in a stacked manner with the first shearing blade, and one end of the second shearing blade is provided with a second shearing cut corresponding to the first shearing cut; The third driving member is drivingly connected to the other end of the second shearing blade and is used to drive the end of the second shearing blade to rotate around the hinge point so that the second shearing opening and the first shearing opening can switch between mutually offset or mutually overlapping positions.

13. The welding gun cleaning device according to any one of claims 1 to 9, characterized in that: It also includes a liquid spraying mechanism, which is arranged on the frame and is used for spraying anti-splashing liquid on the nozzle and the conductive nozzle of the welding gun.

14. The welding gun cleaning device according to claim 13, characterized in that: The liquid spray mechanism comprises a liquid spray body, a liquid storage tank and a liquid collecting tank, the liquid spray body is hollow inside and is provided with a spray part, the spray part is provided with a spray port, a first inlet and a second inlet, the spray port is used to spray anti-splash liquid to a welding gun extending into the liquid spray body, the first inlet is connected to the liquid storage tank through a pipeline, and the second inlet is connected to an external gas source through a pipeline; The liquid collecting tank is connected to the bottom of the liquid spraying body and communicates with the inner cavity of the liquid spraying body.

Images