Contact tube replacement equipment

Abstract

The invention belongs to the technical field of welding, and discloses contact tube replacement equipment which comprises a machine shell, a contact tube dismounting and feeding device and a nozzle dismounting and cleaning mechanism, the machine shell comprises a lower mounting plate and an upper mounting plate, and the upper mounting plate and the lower mounting plate are arranged in parallel at an interval; the nozzle dismounting and cleaning mechanism is used for dismounting a nozzle of the welding gun, cleaning the nozzle and remounting the nozzle on the welding gun; a contact tube dismounting mechanism and a contact tube feeding mechanism in the contact tube dismounting and feeding device are arranged up and down, and the contact tube dismounting mechanism can dismount a contact tube on a welding gun and mount a new contact tube supplied by the contact tube feeding mechanism on the welding gun; therefore, the old contact tube can be disassembled and the new contact tube can be assembled at the same station, the replacement operation efficiency can be improved, the number of operation mechanisms is reduced, and the whole machine is more compact in structure and smaller in occupied space.

Description

Technical Field

[0001] The present application relates to the field of welding technology, and in particular to a conductive nozzle replacement device. Background Art

[0002] A welding gun primarily consists of a gun body, a conductive tip, a nozzle, a wire guide, a gas guide, a control switch, and a cable. These components are mechanically assembled and electrically connected to form a single unit. These components work together to ensure wire conduction, gas shielding, and welding operations. The conductive tip is mounted at the front of the welding gun, while the nozzle fits over it. The conductive tip conducts the welding current, creating an arc between the wire and the workpiece. The nozzle ejects shielding gas to isolate the air. The conductive tip is a consumable part of the welding gun. Wear or damage can degrade weld quality, so regular replacement is necessary to maintain weld quality.

[0003] A related art conductive tip replacement device includes a nozzle disassembly and assembly mechanism, a conductive tip removal mechanism, and a conductive tip installation mechanism. During operation, the nozzle disassembly and assembly mechanism first removes the nozzle from the welding gun. The conductive tip removal mechanism then removes the conductive tip from the welding gun. The conductive tip installation mechanism then installs a new conductive tip on the welding gun. Finally, the nozzle disassembly and assembly mechanism installs the nozzle back on the welding gun. However, because the conductive tip removal and installation mechanisms are located at different workstations, the welding gun needs to be moved to different workstations to perform different operations during operation, which complicates the operation process and reduces efficiency. Furthermore, the conductive tip removal and installation mechanisms are arranged side by side, making the replacement device larger in the horizontal direction and occupying a large amount of space.

[0004] This section provides background information related to the present application which is not necessarily prior art. Summary of the Invention

[0005] The purpose of this application is to solve or at least alleviate part or all of the above problems. To this end, the purpose of this application is to provide a contact tip replacement device that can not only improve the contact tip replacement efficiency but also has a compact structure and takes up little space.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] The present application provides a contact nozzle replacement device, comprising:

[0008] The housing comprises a lower mounting plate and an upper mounting plate arranged parallel to and spaced apart from the lower mounting plate;

[0009] a conductive tip disassembly and feeding device, comprising a conductive tip disassembly and feeding mechanism and a conductive tip feeding mechanism, wherein the conductive tip feeding mechanism is mounted on the lower mounting plate and located below the conductive tip disassembly and feeding mechanism, and is used to feed a new conductive tip to the conductive tip disassembly and feeding mechanism; the conductive tip disassembly and feeding mechanism is mounted on the upper mounting plate and is used to remove the conductive tip from the welding gun and to install a new conductive tip supplied by the conductive tip feeding mechanism on the welding gun;

[0010] The nozzle disassembly and cleaning mechanism is installed on the upper mounting plate and arranged side by side with the conductive nozzle disassembly and cleaning mechanism. The nozzle disassembly and cleaning mechanism is used to disassemble the nozzle of the welding gun, clean the nozzle and reinstall the nozzle on the welding gun.

[0011] As an optional solution for the conductive nozzle replacement device, the conductive nozzle replacement device also includes a conductive nozzle cleaning mechanism, which is installed on the upper mounting plate and is located on the side of the nozzle disassembly and cleaning mechanism away from the conductive nozzle disassembly and cleaning mechanism. The conductive nozzle cleaning mechanism is used to clean the conductive nozzle on the welding gun.

[0012] As an optional solution of the contact tip replacement device, the contact tip replacement device further includes a main drive device, and the main drive device includes:

[0013] A fixing bracket, mounted on the lower surface of the upper mounting plate;

[0014] A main driver is installed on the fixing frame;

[0015] a first transmission assembly, comprising a first driving wheel, a first driven wheel, and a first synchronous belt, wherein the output end of the main driver is coaxially connected to the first driving wheel, the first driven wheel is coaxially connected to the driving end of the conductive nozzle cleaning mechanism, and the first synchronous belt is wound around the first driving wheel and the first driven wheel;

[0016] a second transmission assembly, comprising a second driving wheel, a second driven wheel, and a second synchronous belt, wherein the second driving wheel is coaxially connected to the first driven wheel, the second driven wheel is coaxially connected to the driving end of the nozzle disassembly and cleaning mechanism, and the second synchronous belt is wound around the second driving wheel and the second driven wheel;

[0017] The third transmission assembly includes a third driving wheel, a third driven wheel and a third synchronous belt. The third driving wheel is coaxially connected to the second driven wheel, the third driven wheel is coaxially connected to the driving end of the conductive nozzle disassembly and assembly mechanism, and the third synchronous belt is wound around the third driving wheel and the third driven wheel.

[0018] As an optional solution for the conductive nozzle replacement device, the conductive nozzle disassembly and assembly mechanism includes a conductive nozzle disassembly and assembly base, a conductive nozzle disassembly and assembly drive rod and a conductive nozzle clamping assembly, and the conductive nozzle clamping assembly is used to clamp the conductive nozzle; the conductive nozzle disassembly and assembly base is mounted on the upper mounting plate, the conductive nozzle disassembly and assembly drive rod is rotatably engaged with the conductive nozzle disassembly and assembly base, and its lower end is transmission-connected to the third driven wheel, and its upper end is transmission-connected to the conductive nozzle clamping assembly; and / or

[0019] The nozzle disassembly and cleaning mechanism includes a nozzle disassembly base, a nozzle disassembly drive rod and a nozzle clamping assembly, wherein the nozzle clamping assembly is used to clamp the nozzle; the nozzle disassembly base is mounted on the upper mounting plate, the nozzle disassembly drive rod is rotatably engaged with the nozzle disassembly base, and its lower end is transmission-connected to the second driven wheel, and its upper end is transmission-connected to the nozzle clamping assembly; and / or

[0020] The conductive nozzle cleaning mechanism includes a conductive nozzle cleaning base, a conductive nozzle cleaning drive rod and a conductive nozzle cleaning piece. The conductive nozzle cleaning base is installed on the upper mounting plate, and the conductive nozzle cleaning piece is rotatably installed on the conductive nozzle cleaning base; the upper end of the conductive nozzle cleaning drive rod is transmission connected to the conductive nozzle cleaning drive rod, and the lower end thereof is transmission connected to the first driven wheel.

[0021] As an optional solution for the conductive nozzle replacement equipment, the conductive nozzle disassembly and assembly mechanism also includes a conductive nozzle floating assembly, and the conductive nozzle floating assembly includes a first seat plate, a second seat plate, a guide rod and a floating elastic member. The first seat plate and the second seat plate are arranged in parallel and spaced apart. The first seat plate is used for transmission connection with the conductive nozzle disassembly and assembly drive rod, and the second seat plate is used for connection with the conductive nozzle clamping assembly; one end of the guide rod fixes the second seat plate, and the other end thereof slides with the first seat plate through a linear bearing; the floating elastic member is located between the first seat plate and the second seat plate, and is used to realize a floating connection between the first seat plate and the second seat plate.

[0022] As an optional solution of the conductive tip replacement device, the conductive tip replacement device further includes a wire cutting mechanism, which is arranged adjacent to the conductive tip disassembly and assembly mechanism and is used to cut the welding wire at the front end of the welding gun.

[0023] As an optional solution for the conductive nozzle replacement device, the wire cutting mechanism includes a wire cutting frame, a fixed wire cutting knife, a movable wire cutting knife and a wire cutting drive, wherein the fixed wire cutting knife is fixed relative to the wire cutting frame; the movable wire cutting knife is movably arranged relative to the wire cutting frame; the wire cutting drive is fixed to the wire cutting frame, and its output end is connected to the movable wire cutting knife, and is used to drive the movable wire cutting knife close to the fixed wire cutting knife to cut the welding wire of the welding gun.

[0024] As an optional solution of the contact tip replacement device, the contact tip replacement device further includes a recycling system, and the recycling system includes:

[0025] A recovery box is mounted on the lower mounting plate;

[0026] A welding wire conductive nozzle guide groove group, used for guiding the welding wire cut by the wire cutting mechanism to the recovery box, and guiding the conductive nozzle removed by the conductive nozzle disassembly mechanism to the recovery box;

[0027] A nozzle cleaning guide groove, used to guide debris generated by the nozzle cleaning mechanism when cleaning the nozzle to the recovery box;

[0028] The conductive nozzle cleaning guide groove is used to guide the debris generated by the conductive nozzle cleaning mechanism when cleaning the conductive nozzle to the recovery box.

[0029] As an optional solution for the conductive nozzle replacement equipment, the conductive nozzle disassembly and feeding device also includes a position switching mechanism, which is installed on the lower mounting plate and is used to drive the conductive nozzle feeding mechanism to move in the horizontal direction, so that the conductive nozzle feeding mechanism can deliver the new conductive nozzle to the loading position of the conductive nozzle disassembly and feeding mechanism and avoid the waiting position of the conductive nozzle disassembly and feeding mechanism.

[0030] As an optional solution for the conductive nozzle replacement equipment, the welding wire conductive nozzle guide groove group includes a first guide groove, a second guide groove, a third guide groove and a fourth guide groove, the lower end of the first guide groove is fixed to the upper surface of the upper mounting plate, and the upper end thereof is located below the wire cutting mechanism; the upper end of the second guide groove is fixed to the lower surface of the upper mounting plate, and the lower end thereof is located above the third guide groove; the upper mounting plate has a first through opening connecting the first guide groove and the second guide groove; the upper end of the third guide groove is fixed to the conductive nozzle feeding mechanism, and the lower end thereof is located above the fourth guide groove; the upper end of the fourth guide groove is fixed to the position switching mechanism, and the lower end thereof is located above the recovery box.

[0031] The beneficial effects of this application are:

[0032] The conductive nozzle replacement device provided in the present application includes a casing, a conductive nozzle disassembly and feeding device, and a nozzle disassembly and cleaning mechanism. The casing includes a lower mounting plate and an upper mounting plate arranged parallel to the lower mounting plate; the nozzle disassembly and cleaning mechanism is used to disassemble the nozzle of the welding gun, clean the nozzle, and reinstall the nozzle on the welding gun; the conductive nozzle disassembly and feeding device and the conductive nozzle feeding mechanism are arranged up and down, and the conductive nozzle disassembly and feeding mechanism can realize the removal of the conductive nozzle on the welding gun and the installation of a new conductive nozzle supplied by the conductive nozzle feeding mechanism on the welding gun; the old conductive nozzle can be removed and the new conductive nozzle can be assembled at the same work station, which not only improves the efficiency of the replacement operation, but also reduces the number of operating mechanisms, making the overall structure more compact and occupying less space.

[0033] In addition, the conductive nozzle replacement equipment can realize automated replacement operations, solving the problems of line stoppage and low efficiency caused by manual replacement of conductive nozzles and nozzles; it has the functions of nozzle disassembly and cleaning, solving the problem of equipment failure caused by the conductive nozzle or nozzle welding slag sintering without cleaning; the integrated operation of conductive nozzle assembly and loading and new conductive nozzle filling operations can solve the problem of complicated and inefficient processes caused by separate operations of conductive nozzle assembly and loading and new conductive nozzle filling. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present application and these drawings without any creative work.

[0035] Figure 1 It is a structural schematic diagram of the conductive nozzle replacement device provided in an embodiment of the present application.

[0036] Figure 2 This is the first structural schematic diagram of the hidden part of the casing of the conductive nozzle replacement device provided in an embodiment of the present application in one direction.

[0037] Figure 3 This is a schematic structural diagram of the hidden portion of the casing of the conductive nozzle replacement device provided in an embodiment of the present application in another direction.

[0038] Figure 4 This is a schematic diagram of the structure of the conductive nozzle replacement device provided in an embodiment of the present application, wherein the housing is hidden in one direction.

[0039] Figure 5 This is a schematic diagram of the structure of the conductive nozzle replacement device provided in an embodiment of the present application with the hidden casing in another direction.

[0040] Figure 6It is a structural schematic diagram of the conductive nozzle disassembly and feeding device provided in an embodiment of the present application.

[0041] Figure 7 It is a cross-sectional schematic diagram of the conductive nozzle disassembly and feeding device provided in an embodiment of the present application.

[0042] Figure 8 It is a structural diagram of the position switching mechanism provided in an embodiment of the present application.

[0043] Figure 9 It is a schematic structural diagram of the conductive nozzle feeder provided in an embodiment of the present application in one direction.

[0044] Figure 10 It is a partial cross-sectional schematic diagram of the conductive nozzle feeding mechanism provided in an embodiment of the present application.

[0045] Figure 11 It is a structural schematic diagram of the conductive nozzle feeding mechanism provided in an embodiment of the present application in another direction.

[0046] Figure 12 It is a schematic diagram of the partial structure of the conductive nozzle feeding mechanism provided in an embodiment of the present application.

[0047] Figure 13 It is a partially exploded schematic diagram of the conductive nozzle feeding mechanism provided in an embodiment of the present application.

[0048] Figure 14 It is a structural schematic diagram of the nozzle disassembly and cleaning mechanism provided in an embodiment of the present application.

[0049] Figure 15 It is a structural schematic diagram of the conductive nozzle cleaning mechanism provided in an embodiment of the present application.

[0050] Reference numerals:

[0051] 100, control system; 200, detection mechanism; 201, bracket; 202, sensor;

[0052] 1. Casing; 11. Support frame; 12. Bottom plate; 13. Upper mounting plate; 14. Lower mounting plate; 15. Top plate; 151. Inspection clearance hole; 152. Wire cutting clearance hole; 153. Nozzle clearance hole; 154. Contact nozzle clearance hole; 155. Cleaning clearance hole; 16. Cover plate; 101. Bottom mounting space; 102. Middle mounting space; 103. Top mounting space

[0053] 2. Wire cutting mechanism; 21. Wire cutting frame; 22. Fixed wire cutting knife; 23. Movable wire cutting knife; 24. Wire cutting drive;

[0054] 3. Nozzle disassembly and cleaning mechanism; 31. Nozzle disassembly and cleaning base; 33. Nozzle clamping assembly; 34. Nozzle floating assembly; 35. Nozzle cleaning assembly; 351. Nozzle cleaning driver; 352. Nozzle cleaning parts;

[0055] 4. Conductive nozzle cleaning mechanism; 41. Conductive nozzle cleaning base; 42. Conductive nozzle cleaning drive rod; 43. Conductive nozzle cleaning piece;

[0056] 5. Contact nozzle assembly and disassembly mechanism; 51. Contact nozzle assembly and disassembly base; 511. Base body; 512. Support rod; 52. Contact nozzle assembly and disassembly drive rod; 520. Transmission channel; 53. Contact nozzle clamping assembly; 531. Clamping claw; 5310. Clamping channel; 532. Pneumatic rotary chuck; 5320. Mounting channel; 54. Contact nozzle floating assembly; 541. First base plate; 542. Second base plate; 543. Guide rod; 544. Floating elastic member; 545. Limit rod;

[0057] 6. Conductive nozzle feeding mechanism; 61. Frame; 611. Stand; 612. Upper guide; 6120. Upper through hole; 613. Lower guide; 6130. Lower through hole; 614. Upper limit plate; 615. Lower limit plate; 62. Conductive nozzle clip; 620. Accommodating chamber; 6201. Upper opening; 6202. Lower opening; 621. Stopper; 6211. Second inclined surface; 6212. Second straight surface; 63. Ejector rod; 64. Feeding driver; 65. Shifter assembly; 651. Positioning member; 6 510, positioning groove; 6511, connecting shaft; 652, shift block; 6520, shift claw protrusion; 65201, first inclined surface; 65202, first straight surface; 653, elastic member; 654, first pivot; 66, transmission assembly; 661, transmission plate; 6611, first plate; 66111, arcuate drive groove; 66112, linear guide groove; 6612, second plate; 66120, arcuate groove; 662, transmission shaft; 663, second pivot; 67, detection mounting plate; 68, detection member;

[0058] 7. Position switching mechanism; 71. Fixed plate; 72. Position drive assembly; 721. Connecting plate; 722. Position driver; 73. Guide assembly; 731. Slide rail; 732. Slider;

[0059] 8. Main drive unit; 81. Fixed frame; 82. Main drive unit; 83. First transmission assembly; 831. First driving pulley; 832. First driven pulley; 833. First synchronous belt; 84. Second transmission assembly; 841. Second driving pulley; 842. Second driven pulley; 843. Second synchronous belt; 85. Third transmission assembly; 851. Third driving pulley; 852. Third driven pulley; 853. Third synchronous belt;

[0060] 9. Recovery system; 91. Recovery box; 92. Welding wire conductive nozzle guide groove group; 921. First guide groove; 922. Second guide groove; 923. Third guide groove; 924. Fourth guide groove; 93. Nozzle cleaning guide groove; 94. Conductive nozzle cleaning guide groove. DETAILED DESCRIPTION

[0061] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the foregoing drawings.

[0062] In this application, the terms "comprises," "includes," "has," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0063] In this application, the term "and / or" describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " in this application generally indicates that the related objects are in an "and / or" relationship.

[0064] In this application, the terms "connect," "combine," "couple," and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without an intermediary, and an indirect connection refers to two parts or components being connected to at least one intermediary, with the two parts or components being connected via the intermediary. Furthermore, "connect" and "couple" are not limited to physical or mechanical connections or couplings and may include electrical connections or couplings.

[0065] In this application, it will be understood by those skilled in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerance caused by manufacturing, assembly, use, etc. associated with a specific value. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0066] In this application, it will be understood by those skilled in the art that the function performed by an assembly can be performed by one assembly, multiple assemblies, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one assembly, or a combination of multiple parts.

[0067] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to the other element "upper" or "lower", but also be indirectly connected to the other element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, below can include directly below, lower left, lower right, lower front and lower back, etc.

[0068] The present application provides an arc welding device, including a welding gun, a wire feeding mechanism, a gas circuit system and an electronic control system, wherein the welding gun is used to conduct current and transport welding wire and shielding gas; the wire feeding mechanism is used to stably push the welding wire through the welding gun into the arc zone; the gas circuit system is used to provide and adjust the shielding gas to form an air-isolating barrier around the arc and the molten pool to prevent metal oxidation; the electronic control system is used to control welding parameters and ensure welding quality.

[0069] The present application also provides a welding gun, comprising a gun body, a conductive tip, a nozzle, a wire conduit, a gas conduit, a control switch, and a cable, wherein the gun body is the main structural component, supporting the various components and connecting the welding handle; the conductive tip is mounted at the front end of the gun body and is responsible for conducting the welding current, generating an arc between the welding wire and the workpiece; the nozzle is arranged around the conductive tip and is used to spray shielding gas to isolate the air; the wire conduit guides the welding wire to be smoothly delivered, and the gas conduit ensures smooth shielding gas flow; the control switch can trigger or cut off the welding current, and the cable transmits power and control signals. The various components are mechanically assembled and electrically connected to form a whole, the welding wire extends from the conductive tip through the wire conduit, and the shielding gas passes through the nozzle to form a gas hood, thereby achieving the functions of wire melting, arc stabilization, and molten pool protection during welding, thereby ensuring welding quality and efficiency.

[0070] Because the conductive tip is a consumable part of the welding gun, wear or damage can degrade welding quality. Therefore, it needs to be replaced regularly to maintain welding quality. The typical contact tip replacement process involves first removing the nozzle from the welding gun, then removing the conductive tip, then installing a new one, and finally reinstalling the previously removed nozzle onto the new one. This entire replacement process involves numerous steps, and manual replacement requires production line downtime. This is not only labor-intensive and inefficient, but also poses safety risks.

[0071] In order to realize the automatic replacement of the conductive nozzle, such as Figures 1 to 3 As shown, the present application also provides a conductive nozzle replacement device that can be used to automatically replace the conductive nozzle, solving problems such as line stoppage, low efficiency, and personnel safety caused by manual replacement of the conductive nozzle.

[0072] The conductive nozzle replacement equipment includes a housing 1, a wire cutting mechanism 2, a nozzle disassembly and cleaning mechanism 3, a conductive nozzle cleaning mechanism 4, a conductive nozzle disassembly and feeding device, a main drive device 8, a recovery system 9, a detection mechanism 200 and a control system 100. Among them, the wire cutting mechanism 2 is used to cut the welding wire at the end of the welding gun; the nozzle disassembly and cleaning mechanism 3 is used to disassemble, clean, and reassemble the nozzle on the welding gun to the welding gun; the conductive nozzle cleaning mechanism 4 is used to clean the conductive nozzle on the welding gun; the conductive nozzle disassembly and feeding device includes a conductive nozzle disassembly and feeding mechanism 5 and a conductive nozzle feeding mechanism 6, and the conductive nozzle disassembly and feeding mechanism 5 is used to disassemble the conductive nozzle of the welding gun and assemble the new conductive nozzle supplied by the conductive nozzle feeding mechanism 6 to the welding gun; the main drive device 8 can provide power for the operation of the nozzle disassembly and cleaning mechanism 3, the conductive nozzle cleaning mechanism 4 and the conductive nozzle disassembly and cleaning mechanism 5; the recycling system 9 is used to recycle debris generated during the entire process of replacing the conductive nozzle, such as cut welding wire, welding slag dropped during the cleaning process, etc.; the detection mechanism 200 is used to detect whether there is welding wire, nozzle, conductive nozzle, etc. at the end of the welding gun; the control system 100 is used to cooperate with other components to realize automated operation.

[0073] The core components of the conductive nozzle replacement equipment for realizing the replacement of the conductive nozzle include the nozzle disassembly and cleaning mechanism 3 and the conductive nozzle disassembly and feeding device, the main auxiliary components include the detection mechanism 200, the main drive device 8 and the control system 100, and the secondary auxiliary components include the wire cutting mechanism 2 and the recovery system 9. It should be noted that, based on the conductive nozzle replacement equipment disclosed in the present application, those skilled in the art can arbitrarily combine two or more of the detection mechanism 200, the wire cutting mechanism 2, the nozzle disassembly and cleaning mechanism 3, the conductive nozzle cleaning mechanism 4, the conductive nozzle disassembly and feeding device, the main drive device 8, the control system 100 and the recovery system 9 according to actual operation needs, and the combination of various components based on the conductive nozzle replacement equipment should be understood to be within the scope of protection of the present application.

[0074] To better understand the workflow of the contact tip replacement equipment, see Figures 1 to 3 As shown, based on all the main components of the conductive tip replacement device, the conductive tip replacement process is as follows: 1) The wire cutting mechanism 2 cuts the welding wire of the welding gun. 2) The detection mechanism 200 detects whether there is a nozzle at the front end of the welding gun. 3) If there is a nozzle at the front end of the welding gun, the nozzle disassembly and cleaning mechanism 3 removes the nozzle at the front end of the welding gun. 4) The detection mechanism 200 detects whether there is a conductive tip at the front end of the welding gun. 5) If there is a conductive tip at the front end of the welding gun, the conductive tip cleaning mechanism 4 cleans the conductive tip at the front end of the welding gun. 6) The conductive tip disassembly and feeding device removes the original conductive tip of the welding gun and assembles a new conductive tip on the welding gun. 7) The detection mechanism 200 detects whether the new conductive tip has been assembled on the welding gun. 8) If the new conductive tip has been assembled on the welding gun, the nozzle disassembly and cleaning mechanism 3 reassembles the previously removed nozzle outside the conductive tip of the welding gun; 9) The detection mechanism 200 detects whether the nozzle is fully assembled.

[0075] It should be noted that the nozzle cleaning operation is carried out during the process from 4) to 7), that is, after the nozzle disassembly and cleaning mechanism 3 removes the nozzle, the welding gun immediately leaves the nozzle disassembly and cleaning mechanism 3 and moves to the detection mechanism 200 for detection, and then carries out the subsequent process. The nozzle disassembly and cleaning mechanism 3 cleans the nozzle before the nozzle is assembled.

[0076] Furthermore, during the contact tip replacement process, the welding wire cut by the wire cutting mechanism 2, debris generated by the nozzle disassembly and cleaning mechanism 3, debris generated by the contact tip cleaning mechanism 4, and the old contact tip removed by the contact tip disassembly and assembly mechanism 5 are all recycled by the recycling system 9. This arrangement, on the one hand, recycles recyclable items and saves material costs; on the other hand, collecting debris and old contact tips generated during the replacement process helps keep the entire equipment clean and tidy, reducing the workload of subsequent equipment maintenance personnel.

[0077] Next, combine Figures 1 to 11 As shown in the figure, the implementation scheme of all main components of the conductive nozzle replacement device is specifically described.

[0078] like Figures 1 to 5 As shown, the casing 1 serves as a supporting structure for the remaining components, and the detection mechanism 200, the wire cutting mechanism 2, the nozzle disassembly and cleaning mechanism 3, the conductive nozzle cleaning mechanism 4, the conductive nozzle disassembly and feeding device, the main drive device 8, the control system 100 and the recovery system 9 are all installed in the casing 1.

[0079] The casing 1 includes a support frame 11, a base plate 12, a lower mounting plate 14, an upper mounting plate 13, a top plate 15 and a sealing plate 16. The base plate 12, the lower mounting plate 14, the upper mounting plate 13 and the top plate 15 are arranged in parallel and spaced apart from bottom to top, and form three installation spaces; the support frame 11 extends in a vertical direction and serves as a supporting structure between adjacent pairs of the base plate 12, the lower mounting plate 14, the upper mounting plate 13 and the top plate 15; the sealing plate 16 is arranged around the side of the support frame 1 to encapsulate the above three installation spaces, which can shield the equipment in the casing 1, not only providing safety protection for the equipment in the casing 1, preventing external dust and debris from entering the casing 1, but also improving the overall appearance of the equipment.

[0080] For the convenience of description, the three installation spaces are respectively recorded as the bottom installation space 101, the middle installation space 102 and the top installation space 103. The bottom installation space 101 is mainly used to install the control system 100 of the equipment. Of course, part of the structure of other components is also accommodated in the bottom installation space 101, such as part of the structure of the conductive nozzle feeding mechanism 6; the middle installation space 102 is mainly used to install the recovery system 9 and the main drive device 8 of the equipment. Of course, part of the structure of other components is also accommodated in the middle installation space 102, such as part of the structure of the conductive nozzle disassembly and assembly mechanism 5, part of the structure of the nozzle disassembly and cleaning mechanism 3, part of the structure of the conductive nozzle cleaning mechanism 4, etc.; the top installation space 103 is mainly used to install the conductive nozzle disassembly and assembly mechanism 5, the nozzle disassembly and cleaning mechanism 3, the conductive nozzle cleaning mechanism 4, the wire cutting mechanism 2 and the detection mechanism 200. Of course, part of the structure of other components is also accommodated in the top installation space 103, such as part of the structure of the recovery system 9.

[0081] In addition, in order to facilitate the corresponding operation process, the top plate 15 has an inspection avoidance hole 151, a wire cutting avoidance hole 152, a nozzle avoidance hole 153, a conductive nozzle avoidance hole 154 and a cleaning avoidance hole 155. During the inspection process, the front end of the welding gun can be inspected at the inspection avoidance hole 151; during the wire cutting process, the welding wire at the front end of the welding gun can be cut at the wire cutting avoidance hole 152; during the nozzle disassembly and assembly process, the nozzle at the front end of the welding gun can be disassembled and assembled at the nozzle avoidance hole 153; during the conductive nozzle replacement process, the conductive nozzle at the front end of the welding gun can be replaced at the conductive nozzle avoidance hole 154; during the conductive nozzle cleaning process, the conductive nozzle at the front end of the welding gun can be cleaned at the cleaning avoidance hole 155.

[0082] The detection mechanism 200 includes a bracket 201 and a sensor 202. The bracket 201 is fixed to the top plate 15, and the sensor 202 is installed on the bracket 201. The sensor 202 has a detection position, which is arranged opposite to the detection avoidance hole 151 so that the front end of the welding gun can enter the detection position from the detection avoidance hole 151, making it convenient for the sensor 202 to detect the condition of the front end of the welding gun.

[0083] The wire cutting mechanism 2 includes a wire cutting frame 21, a fixed wire cutting knife 22, a movable wire cutting knife 23 and a wire cutting driver 24, wherein the wire cutting frame 21 is fixed to the top plate 15, the fixed wire cutting knife 22 is fixed relative to the wire cutting frame 21, the movable wire cutting knife 23 is slidably arranged relative to the wire cutting frame 21, and the wire cutting driver 24 is fixed to the wire cutting frame 21, and its output end is connected to the movable wire cutting knife 23, and is used to drive the movable wire cutting knife 23 to approach the fixed wire cutting knife 22 to cut the welding wire of the welding gun. Furthermore, the gap between the fixed wire cutting knife 22 and the movable wire cutting knife 23 serves as the wire cutting execution end of the wire cutting mechanism 2 and is arranged relative to the wire cutting avoidance hole 152, so that the welding wire of the welding gun can enter between the fixed wire cutting knife 22 and the movable wire cutting knife 23 through the wire cutting avoidance hole 152 to cut the welding wire.

[0084] The clamping end of the nozzle disassembly and cleaning mechanism 3 is arranged opposite to the nozzle avoidance hole 153, so that the nozzle of the welding gun can enter the clamping end of the nozzle disassembly and cleaning mechanism 3 from the nozzle avoidance hole 153, making it convenient for the clamping end of the nozzle disassembly and cleaning mechanism 3 to clamp the nozzle.

[0085] The clamping end of the conductive nozzle disassembly and assembly mechanism 5 is arranged opposite to the conductive nozzle avoidance hole 154, so that the conductive nozzle of the welding gun can enter the clamping end of the conductive nozzle disassembly and assembly mechanism 5 from the conductive nozzle avoidance hole 154, making it convenient for the clamping end of the conductive nozzle disassembly and assembly mechanism 5 to clamp the conductive nozzle.

[0086] The cleaning port of the conductive nozzle cleaning mechanism 4 is arranged opposite to the cleaning avoidance hole 155 so that the conductive nozzle of the welding gun can enter the cleaning port of the conductive nozzle cleaning mechanism 4 from the cleaning avoidance hole 155 so that the conductive nozzle cleaning mechanism 4 can clean the conductive nozzle.

[0087] like Figures 4 and 5As shown, the recycling system 9 includes a recycling box 91, a welding wire contact tip guide groove assembly 92, a nozzle cleaning guide groove 93, and a contact tip cleaning guide groove 94. The recycling box 91 is mounted on the lower mounting plate 14 and is used to store cut welding wire, old contact tips, and debris generated by cleaning the nozzles and other debris generated by cleaning the contact tips. Cut welding wire and old contact tips fall into the recycling box 91 through the welding wire contact tip guide groove assembly 92; debris generated by cleaning the nozzles falls into the recycling box 91 through the nozzle cleaning guide groove 93; and debris generated by cleaning the contact tips falls into the recycling box 91 through the contact tip cleaning guide groove 94. This arrangement allows for the recycling of recyclable items, saving material costs, keeping the equipment clean and tidy, and reducing the workload of subsequent maintenance personnel.

[0088] The welding wire contact tip guide groove assembly 92 includes a first guide groove 921, a second guide groove 922, a third guide groove 923, and a fourth guide groove 924. The lower end of the first guide groove 921 is mounted on the upper surface of the upper mounting plate 13, with its upper end positioned below the wire cutting mechanism 2. The first guide groove 921 is tilted as a whole. The second guide groove 922 is mounted on the lower surface of the upper mounting plate 13 and extends vertically. The upper mounting plate 13 has a first opening connecting the first and second guide grooves 921 and 922, allowing objects in the first guide groove 921 to fall into the second guide groove 922 through the first opening. The third guide groove 923 is mounted on the contact tip feeding mechanism 6. One end of the third guide groove 923 receives old contact tips that have fallen from the contact tip assembly and disassembly mechanism 5. The other end of the third guide groove 923 connects to the upper end of the fourth guide groove 924, the lower end of which is positioned above the recovery box 91. Furthermore, at least a portion of the third guide groove 923 is located below the second guide groove 922 to receive the welding wire that falls from the second guide groove 922. That is, the welding wire falls into the recycling box 91 through the first guide groove 921, the second guide groove 922, the third guide groove 923, and the fourth guide groove 924, and the used contact tip falls into the recycling box 91 through the third guide groove 923 and the fourth guide groove 924.

[0089] By combining different guide slot arrangements, the welding wire and contact tip guide slot assembly 92 can simultaneously recycle welding wire and used contact tips, making the equipment more compact, saving on parts, and facilitating assembly. In one embodiment, the first guide slot 921, the second guide slot 922, the third guide slot 923, the fourth guide slot 924, the nozzle cleaning guide slot 93, and the contact tip cleaning guide slot 94 can all be made of stainless steel. Stainless steel offers high strength, excellent heat resistance, and a long service life, eliminating the need for frequent replacement.

[0090] The main drive device 8 includes a fixed frame 81, a main driver 82, a first transmission assembly 83, a second transmission assembly 84, and a third transmission assembly 85. The fixed frame 81 is fixed to the lower surface of the upper mounting plate 13, and the main driver 82 is mounted on the fixed frame 81. The main driver 82 drives the contact nozzle cleaning mechanism 4, the nozzle assembly and cleaning mechanism 3, and the contact nozzle assembly and disassembly mechanism 5 through the first transmission assembly 83, the second transmission assembly 84, and the third transmission assembly 85. In one embodiment, the main driver 82 can be a servo motor with a reducer.

[0091] The first transmission assembly 83 includes a first driving wheel 831, a first driven wheel 832 and a first synchronous belt 833. The output end of the total driver 82 is coaxially connected to the first driving wheel 831, the first driven wheel 832 is coaxially connected to the driving end of the conductive nozzle cleaning mechanism 4, and the first synchronous belt 833 is wound around the first driving wheel 831 and the first driven wheel 832 to realize the linkage between the first driving wheel 831 and the first driven wheel 832.

[0092] The second transmission assembly 84 includes a second driving wheel 841, a second driven wheel 842, a second synchronous belt 843 and a first tensioning wheel. The second driving wheel 841 is coaxially connected to the first driven wheel 832 (both are installed at the output end of the conductive nozzle cleaning mechanism 4). The second driven wheel 842 is coaxially connected to the driving end of the conductive nozzle disassembly and cleaning mechanism 3. The second synchronous belt 843 is wound around the second driving wheel 841 and the second driven wheel 842. The first tensioning wheel can be pressed against the second synchronous belt 843, so that the second synchronous belt 843 is closely matched with the second driving wheel 841 and the second driven wheel 842 to ensure that when the second driving wheel 841 rotates, the second synchronous belt 843 can transmit power to the second driven wheel 842 to realize the linkage operation of the nozzle disassembly and cleaning mechanism 3.

[0093] The third transmission assembly 85 includes a third driving wheel 851, a third driven wheel 852, a third synchronous belt 853 and a second tensioning wheel. The third driving wheel 851 is coaxially connected to the second driven wheel 842 (both are installed on the driving end of the nozzle disassembly and cleaning mechanism 3). The third driven wheel 852 is coaxially connected to the driving end of the conductive nozzle disassembly and assembly mechanism 5. The third synchronous belt 853 is wound around the third driving wheel 851 and the third driven wheel 852. The second tensioning wheel can be pressed against the third synchronous belt 853, so that the third synchronous belt 853 is closely matched with the third driving wheel 851 and the third driven wheel 852, ensuring that when the third driving wheel 851 rotates, the third synchronous belt 853 can transmit power to the third driven wheel 852, so as to realize the linkage operation of the conductive nozzle disassembly and assembly mechanism 5.

[0094] The total drive device 8 provided in the present application can realize the driving of three different mechanisms through a total driver 82 cooperating with three transmission components, without setting up multiple drivers, which not only saves component costs but also makes the overall structure of the equipment more compact.

[0095] like Figures 6 and 7 As shown, in the conductive nozzle disassembly and feeding device, the conductive nozzle disassembly mechanism 5 is used to disassemble the conductive nozzle of the welding gun and assemble a new conductive nozzle to the welding gun, and the conductive nozzle feeding mechanism 6 is used to supply the new conductive nozzle to the conductive nozzle disassembly mechanism 5, so that at the same work station, a set of conductive nozzle disassembly mechanisms 5 can be used to realize the disassembly of the old conductive nozzle and the assembly of the new conductive nozzle, making the equipment structure more compact and saving the cost of parts.

[0096] Since the contact tip assembly and disassembly mechanism 5 needs to both remove the existing contact tip from the welding gun and install a new contact tip provided by the contact tip feeding mechanism 6, to ensure smooth execution of both workflows, the contact tip assembly and disassembly device further includes a position switching mechanism 7. The position switching mechanism 7 is configured to drive the contact tip feeding mechanism 6 in a first horizontal direction so that the contact tip feeding mechanism 6 has a loading position and a standby position. When the contact tip feeding mechanism 6 is in the loading position, it is positioned directly below the contact tip assembly and disassembly mechanism 5 and is capable of feeding a new contact tip to the contact tip assembly and disassembly mechanism 5, allowing the contact tip assembly and disassembly mechanism 5 to hold the new contact tip. When the contact tip feeding mechanism 6 is in the standby position, it avoids being positioned directly below the contact tip assembly and disassembly mechanism 5, allowing the contact tip to fall when the contact tip assembly and disassembly mechanism 5 releases its grip (specifically, the contact tip falls into the third guide slot 923 and, guided by the third guide slot 923, falls into the recovery box 91 via the fourth guide slot 924).

[0097] When removing the contact tip from the welding gun, the position switching mechanism 7 drives the contact tip feeding mechanism 6 to the standby position. After the contact tip removal mechanism 5 removes the contact tip from the welding gun, it releases the contact tip and allows it to fall into the recovery box 91. When installing the contact tip to the welding gun, the position switching mechanism 7 drives the contact tip feeding mechanism 6 to the loading position. The contact tip feeding mechanism 6 delivers the new contact tip to the contact tip removal mechanism 5, which then grips the new contact tip and installs it on the welding gun.

[0098] Furthermore, when the contact tip feeding mechanism 6 is in the loading position, the third guide slot 923 of the recovery system 9 is located below the second guide slot 922 and can receive the welding wire from the second guide slot 922. The welding wire falls into the fourth guide slot 924 under the action of the third guide slot 923 and then falls into the recovery box 91 under the action of the fourth guide slot 924. When the contact tip feeding mechanism 6 moves from the loading position to the standby position, the third guide slot 923 moves with the contact tip feeding mechanism 6 to below the contact tip removal mechanism 5 to receive the old contact tip removed by the contact tip removal mechanism 5. The old contact tip falls into the fourth guide slot 924 under the action of the third guide slot 923 and then falls into the recovery box 91 under the action of the fourth guide slot 924. In other words, the positions of the first guide slot 921, the second guide slot 922, and the fourth guide slot 924 remain unchanged, and the third guide slot 923 moves with the movement of the contact tip feeding mechanism 6.

[0099] The contact tip assembly / disassembly mechanism 5 comprises a contact tip assembly / disassembly base 51, a contact tip assembly / disassembly drive rod 52, a contact tip clamping assembly 53, and a contact tip floating assembly 54. The contact tip assembly / disassembly base 51 is mounted on the upper mounting plate 13. The upper end of the contact tip assembly / disassembly drive rod 52 is rotatably engaged with the contact tip assembly / disassembly base 51 via a bearing. The lower end of the contact tip assembly / disassembly drive rod 52 is drivingly connected to the main drive unit 8 (specifically, the third driven wheel 852), and its upper end is drivingly connected to the contact tip clamping assembly 53, which is used to clamp the contact tip. When the contact tip assembly / disassembly drive rod 52 rotates, the contact tip clamping assembly 53 rotates with the contact tip assembly / disassembly drive rod 52, allowing the contact tip to be removed from or tightened to the welding gun. The conductive nozzle floating assembly 54 is used to enable the entire conductive nozzle disassembly and assembly mechanism 5 to float downward as the conductive nozzle rotates when the conductive nozzle is removed, thereby accommodating the downward loosening of the conductive nozzle; when the conductive nozzle is assembled to the welding gun, the entire conductive nozzle disassembly and assembly mechanism 5 can float upward as the conductive nozzle is tightened, thereby accommodating the upward tightening of the conductive nozzle.

[0100] The conductive nozzle disassembly and assembly base 51 includes a base body 511 and a support rod 512. The base body 511 and the conductive nozzle disassembly and assembly drive rod 52 are rotatably connected through a bearing. Several support rods 512 are fixed to the peripheral side of the base body 511. The support rods 512 can abut against the upper mounting plate 13 to achieve stable support for the base body 511 and the conductive nozzle disassembly and assembly drive rod 52, thereby ensuring the stability of the entire conductive nozzle disassembly and assembly mechanism 5.

[0101] The conductive nozzle clamping assembly 53 includes a claw 531 and a pneumatic rotary chuck 532. The pneumatic rotary chuck 532 has an installation channel 5320, and the claw 531 has a clamping channel 5310 for accommodating the conductive nozzle. The claw 531 can be spirally installed in the installation channel 5320. The pneumatic rotary chuck 532 can drive the claw 531 to rotate downward to clamp the conductive nozzle, so that when the entire conductive nozzle clamping assembly 53 rotates with the conductive nozzle disassembly drive rod 52, the conductive nozzle can be tightened or loosened; the pneumatic rotary chuck 532 can also drive the claw 531 to rotate upward to loosen the conductive nozzle, and when the claw 531 loosens the conductive nozzle, the conductive nozzle can fall downward along the clamping channel 5310.

[0102] The conductive nozzle floating assembly 54 includes a first seat plate 541, a second seat plate 542, a guide rod 543 and a floating elastic member 544. The first seat plate 541 and the second seat plate 542 are arranged in parallel and spaced apart. The first seat plate 541 is used for transmission connection with the conductive nozzle disassembly and assembly drive rod 52, and the second seat plate 542 is used for connection with the conductive nozzle clamping assembly 53; one end of the guide rod 543 is fixed to the second seat plate 542, and the other end thereof is slidably matched with the first seat plate 541 through a linear bearing; the floating elastic member 544 is located between the first seat plate 541 and the second seat plate 542, and is used to realize a floating connection between the first seat plate 541 and the second seat plate 542.

[0103] The contact tip float assembly 54 also includes a stopper rod 545. The first base plate 541 has a through-hole through which the stopper rod 545 passes. One end of the stopper rod 545 is fixed to the second base plate 542, while the other end fits into the through-hole of the first base plate 541. The floating elastic member 544 is sleeved over the stopper rod 545. This arrangement allows the stopper rod 545 to guide and support the floating elastic member 544, preventing it from misaligning and ensuring stable compression.

[0104] One end of the conductive nozzle disassembly and assembly drive rod 52 is coaxially connected to the first base plate 541, and the other end thereof is coaxially connected to the third driven wheel 852; the conductive nozzle disassembly and assembly drive rod 52 has a transmission channel 520 connected to the clamping channel 5310, and the conductive nozzle can fall into and fall downward along the transmission channel 520, and a new conductive nozzle can move upward from the transmission channel 520 to the clamping channel 5310, so that the claw 531 can clamp the new conductive nozzle.

[0105] like Figure 8 Combine Figure 6 and Figure 7 As shown, the position switching mechanism 7 includes a fixed plate 71 and a position driving assembly 72, wherein the fixed plate 71 is fixed to the lower mounting plate 14, and the output end of the position driving assembly 72 is connected to the conductive nozzle feeding mechanism 6 to drive the conductive nozzle feeding mechanism 6 to switch between the loading position and the waiting position.

[0106] The position drive assembly 72 includes a connecting plate 721 and a position driver 722. The connecting plate 721 is movably mounted on the fixed plate 71 along the horizontal first direction, and the connecting plate 721 is used to connect to the conductive nozzle feeding mechanism 6. The output shaft of the position driver 722 is fixedly connected to the connecting plate 721 and is used to drive the connecting plate 721 to move along the horizontal first direction, thereby realizing that the connecting plate 721 drives the conductive nozzle feeding mechanism 6 to move as a whole along the horizontal first direction.

[0107] The position switching mechanism 7 further includes a guide assembly 73, which includes a slide rail 731 and a slider 732. The slide rail 731 is fixed to the fixed plate 71 along a first horizontal direction. The slider 732 slidably engages with the slide rail 731 and is fixedly connected to the connecting plate 721 to ensure that the connecting plate 721 can stably move along the slide rail 731. In this embodiment, there are two guide assemblies 73, which are respectively disposed at the upper and lower portions of the fixed plate 71. In this case, the upper and lower portions of the connecting plate 721 are both slidably connected to the slide rail 731 via the slider 732, further improving the stability of the horizontal movement of the connecting plate 721.

[0108] like Figures 9 to 13 As shown, the conductive nozzle feeding mechanism 6 includes a frame 61, a conductive nozzle clip 62, a push rod 63, a feeding driver 64, a shift block assembly 65 and a transmission assembly 66, wherein the frame 61 is fixedly connected to the connecting plate 721 of the position switching mechanism 7, and the feeding driver 64 can drive the push rod 63 to move upward to lift the conductive nozzle in the conductive nozzle clip 62 into the conductive nozzle clamping assembly 53, so that the claw 531 can clamp the conductive nozzle; the feeding driver 64 drives the transmission assembly 66 to move the shift block assembly 65 along the second horizontal direction, and the shift block assembly 65 can move the conductive nozzle clip 62 along the second horizontal direction during the movement along the second horizontal direction to realize automatic feeding, or the shift block assembly 65 moves alone to realize resetting.

[0109] The frame 61 includes a vertical frame 611, a feed drive 64 is fixed to the vertical frame 611, and an output end of the feed drive 64 is connected to the push rod 63 to drive the push rod 63 to move up and down in the vertical direction. In one embodiment, the feed drive 64 can be a magnetic rodless cylinder.

[0110] The frame body 61 also includes an upper guide member 612 and a lower guide member 613. The stand 611 extends in the vertical direction and is fixedly connected to the connecting plate 721 of the position switching mechanism 7. The upper guide member 612 and the lower guide member 613 are fixed to the stand 611 in parallel and at intervals. The upper guide member 612 has an upper guide groove, and the lower guide member 613 has a lower guide groove. The notch of the upper guide groove is arranged opposite to the notch of the lower guide groove, so that the upper guide member 612 and the lower guide member 613 cooperate to form a guide channel, and the conductive nozzle clip 62 is movably installed in the guide channel. The conductive nozzle clip 62 has multiple accommodating cavities 620 arranged side by side, which are used to accommodate new conductive nozzles. The upper end of the conductive nozzle clip 62 has an upper opening 6201 connected to the accommodating cavity 620, and the lower end has a lower opening 6202 connected to the accommodating cavity 620. The conductive nozzle can be placed into the accommodating cavity 620 from the upper opening 6201, and the conductive nozzle cannot fall or be taken out from the lower opening 6202.

[0111] The upper guide member 612 has an upper through hole 6120, and the lower guide member 613 has a lower through hole 6130 opposite to the upper through hole 6120. The conductive nozzle clip 62 can move in the guide channel formed by the upper guide member 612 and the lower guide member 613, so that the upper opening 6201 of one of the accommodating cavities 620 on the conductive nozzle clip 62 is connected with the upper through hole 6120, and its lower opening 6202 is connected with the lower through hole 6130. At this time, the push rod 63 moves upward through the lower through hole 6130 and the lower opening 6202 to enter the accommodating cavity 620. The push rod 63 continues to move upward to push the conductive nozzle out from the upper opening 6201 and the upper through hole 6120, and push the conductive nozzle into the transmission channel 520 of the conductive nozzle disassembly and assembly drive rod 52, and then lift it to the clamping channel 5310 of the clamping claw 531, so that the clamping claw 531 can clamp the conductive nozzle.

[0112] The contact tip feeding mechanism 6 also includes a detection mounting plate 67 and a detection member 68. The detection mounting plate 67 is mounted on the upper guide member 612. The detection member 68 is mounted on the detection mounting plate 67 and is located between the upper guide member 612 and the lower guide member 613. The contact tip spring clip 62 has a detection hole that communicates with the accommodating cavity 620. The detection member 68 can detect the presence of a contact tip within the accommodating cavity 620 of the contact tip spring clip 62 at this detection hole. In particular, it is used to detect the presence of a contact tip within the accommodating cavity 620 corresponding to the upper through hole 6120 and the lower through hole 6130, thereby ensuring that the ejector rod 63 can lift the contact tip to the contact tip clamping assembly 53 during operation.

[0113] The stand 611 further includes an upper limit plate 614 and a lower limit plate 615. The upper limit plate 614 is fixed to the upper guide member 612, and the lower limit plate 615 is fixed to the lower guide member 613. The upper limit plate 614 and the lower limit plate 615 cooperate to form a limit guide groove, and the shift block assembly 65 is integrally and movably mounted in the limit guide groove. The feed driver 64 drives the shift block assembly 65 to move in the second horizontal direction, thereby causing the shift block assembly 65 to move along the second horizontal direction with the contact nozzle clip 62 to achieve automatic feeding of the contact nozzle, or the shift block assembly 65 can move alone to achieve reset of the shift block assembly 65.

[0114] The shift block assembly 65 includes a positioning member 651, a shift block 652 and an elastic member 653. The positioning member 651 is movably mounted on the stand 611 along the extension direction of the guide channel. The positioning member 651 has a positioning guide groove on the side facing the conductive nozzle clip 62. The shift block 652 is accommodated in the positioning guide groove and is spaced apart from the bottom surface of the positioning guide groove. The elastic member 653 is arranged between the shift block 652 and the bottom surface of the positioning guide groove. One end of the shift block 652 is rotatably connected to the positioning member 651 through a first pivot 654. The other end of the shift block 652 has a shift claw protrusion 6520. The side of the conductive nozzle clip 62 facing the shift block 652 has a stop protrusion 621 that can cooperate with the shift claw protrusion 6520. Multiple stop protrusions 621 are spaced apart along the length direction of the conductive nozzle clip 62, and the stop protrusions 621 are arranged in a one-to-one correspondence with the accommodating cavity 620 of the conductive nozzle clip 62. When the shift block 652 moves to one side, the shift claw protrusion 6520 cooperates with the stop protrusion 621 to drive the stop protrusion 621 to drive the conductive nozzle clip 62 to move together, or the shift claw protrusion 6520 moves alone relative to the stop protrusion 621 to achieve the independent reset of the shift block assembly 65.

[0115] The pusher claw protrusion 6520 has a first inclined surface 65201 and a first straight surface 65202 arranged opposite to each other, and the stop protrusion 621 has a second inclined surface 6211 and a second straight surface 6212 arranged opposite to each other. When the pusher claw protrusion 6520 moves as a whole with the shift block assembly 65, if the first inclined surface 65201 cooperates with the second inclined surface 6211, the shift block assembly 65 can move alone to achieve reset; if the first straight surface 65202 and the second straight surface 6212 cooperate, the shift block assembly 65 can push the conductive nozzle clip 62 to move together to achieve automatic loading of the conductive nozzle clip 62.

[0116] In order to enable the transmission assembly 66 to convert the up and down movement of the feed driver 64 into the horizontal left and right movement of the shift block assembly 65, the transmission assembly 66 includes a transmission plate 661 and a transmission shaft 662. The bottom of the transmission plate 661 is rotatably mounted on the bottom of the stand 611 through a second pivot 663. The transmission plate 661 has a driving slide and an arc groove 66120, wherein the driving slide has a connected arc driving groove 66111 and a linear guide groove 66112. One end of the transmission shaft 662 is fixedly connected to the feed driver 64, and the other end thereof slides in cooperation with the driving slide. A connecting shaft 6511 is provided on the positioning member 651 of the shift block assembly 65, and the other end of the connecting shaft 6511 slides in cooperation with the arc groove 66120. When the drive shaft 662 moves along the drive chute driven by the feed driver 64, the cooperation between the drive shaft 662 and the arcuate drive groove 66111, and the cooperation between the connecting shaft 6511 and the arcuate groove 66120, can cause the transmission plate 661 to swing, thereby causing the shift block assembly 65 to move left and right along the second horizontal direction. When the drive shaft 662 cooperates with the linear guide groove 66112, the linear guide groove 66112 is in a vertical state and extends in the vertical direction, ensuring that the ejector rod 63 can be stably raised and lowered in the vertical direction.

[0117] Furthermore, the transmission plate 661 includes a first plate 6611 and a second plate 6612. The lower end of the first plate 6611 is rotatably connected to the stand 611 via a second pivot 663. The first plate 6611 has the aforementioned drive slot, with the arcuate drive slot 66111 located below the first plate 6611. The second plate 6612 is connected to the upper end of the first plate 6611 and has an arcuate slot 66120 at its upper end. The surface of the positioning member 651 of the shift block assembly 65, which faces away from the shift block 652, slidably engages with the arcuate slot 66120 via a connecting shaft 6511. This arrangement ensures that when the transmission plate 661 swings as a whole, it can drive the positioning member 651 to move in the second horizontal direction, i.e., the shift block assembly 65 as a whole moves in the second horizontal direction.

[0118] When the output end of the feed driver 64 is at the highest position of the arc-shaped drive groove 66111 of the drive slide, as the output end of the feed driver 64 descends, the transmission shaft 662 moves downward and cooperates with the arc-shaped drive groove 66111 to drive the transmission plate 661 to swing clockwise. The clockwise swing of the transmission plate 661 drives the shift block assembly 65 to move left. During this process, the first straight surface 65202 of the shift claw protrusion 6520 of the shift block 652 and the second straight surface 6212 of the stop protrusion 621 of the conductive nozzle clip 62 cooperate, and the shift block assembly 65 pushes the conductive nozzle clip 62 to move left together, so as to realize automatic loading of the conductive nozzle clip 62.

[0119] When the output end of the feed driver 64 is at the lowest position of the arc-shaped drive groove 66111 of the drive slide, as the output end of the feed driver 64 rises, the transmission shaft 662 moves upward and cooperates with the arc-shaped drive groove 66111 to drive the transmission plate 661 to swing counterclockwise. The transmission plate 661 swings counterclockwise and drives the shift block assembly 65 to move to the right along the second horizontal direction. During this process, the first inclined surface 65201 of the shift claw protrusion 6520 of the shift block 652 and the second inclined surface 6211 of the stop protrusion 621 of the conductive nozzle clip 62 cooperate, and the shift block assembly 65 moves alone to achieve reset.

[0120] It should be noted that, based on the conductive nozzle feeding mechanism 6, the present application also provides a conductive nozzle installation and feeding device, including a conductive nozzle installation mechanism and the conductive nozzle feeding mechanism 6 as above. The conductive nozzle installation mechanism can use the same structure as the above-mentioned conductive nozzle disassembly and assembly mechanism, but the conductive nozzle installation mechanism and the conductive nozzle feeding mechanism 6 can be arranged up and down, or left and right. At this time, the entire device is only used to realize the loading and assembly of the conductive nozzle.

[0121] like Figure 14 As shown, the nozzle assembly and cleaning mechanism 3 comprises a nozzle assembly base 31, a nozzle assembly drive rod, a nozzle clamping assembly 33, a nozzle floating assembly 34, and a nozzle cleaning assembly 35. The nozzle assembly base 31 is mounted on the upper mounting plate 13. The nozzle assembly drive rod rotates with the nozzle assembly base 31 via a bearing. The lower end of the nozzle assembly drive rod is drivingly connected to the main drive unit 8 (specifically, the second driven wheel 842), and its upper end is drivingly connected to the nozzle clamping assembly 33, which is used to clamp the nozzle. When the nozzle assembly drive rod rotates, the nozzle clamping assembly 33 rotates with the nozzle assembly drive rod, allowing the nozzle to be removed from the welding gun or tightened to the welding gun. The nozzle floating assembly 34 is designed to allow the entire nozzle assembly and cleaning mechanism 3 to float downward as the nozzle rotates when the nozzle is removed, accommodating the downward loosening of the nozzle. When the nozzle is assembled to the welding gun, the entire nozzle assembly and cleaning mechanism 3 floats upward as the nozzle is tightened, accommodating the upward tightening of the nozzle. The nozzle cleaning assembly 35 is used to clean the disassembled nozzle to keep the nozzle clean and tidy, thereby improving the welding quality of the welding gun.

[0122] It should be noted that the nozzle clamping assembly 33 can be a pneumatic clamp with four jaws commonly used in the prior art, and the nozzle clamping assembly 33 will not be described in detail here. The nozzle floating assembly 34 can be a floating assembly with the same structure as the conductive nozzle floating assembly 54, and will not be described in detail here.

[0123] The nozzle cleaning assembly 35 includes a nozzle cleaning driver 351 and a nozzle cleaning member 352. The nozzle cleaning driver 351 is used to drive the nozzle cleaning member 352 to move vertically up and down so that the nozzle cleaning member 352 can contact the nozzle to clean the nozzle. The nozzle cleaning member 352 includes a nozzle brush housing and a nozzle bristle brush disposed within the nozzle brush housing. When the nozzle clamping assembly 33 clamps the nozzle and rotates, the brush within the brush housing cleans the nozzle.

[0124] like Figure 15 As shown, the conductive nozzle cleaning mechanism 4 includes a conductive nozzle cleaning base 41, a conductive nozzle cleaning drive rod 42, and a conductive nozzle cleaning member 43. The conductive nozzle cleaning base 41 is mounted on the upper mounting plate 13, and the conductive nozzle cleaning member 43 is rotatably mounted on the conductive nozzle cleaning base 41. The upper end of the conductive nozzle cleaning drive rod 42 is transmission-connected to the conductive nozzle cleaning member 43, and the lower end of the conductive nozzle cleaning drive rod 42 is transmission-connected to the main drive device 8 (specifically, the first driven wheel 832) to drive the conductive nozzle cleaning member 43 to rotate. The conductive nozzle cleaning member 43 includes a conductive nozzle brush housing and a conductive nozzle steel brush. The conductive nozzle brush housing has a cleaning chamber with upper and lower ends open. The conductive nozzle steel brush is disposed within the conductive nozzle brush housing. When the conductive nozzle cleaning drive rod 42 drives the conductive nozzle cleaning member 43 to rotate, the conductive nozzle steel brush within the conductive nozzle cleaning member 43 rotates relative to the conductive nozzle entering the cleaning chamber, thereby cleaning the conductive nozzle.

[0125] The upper end of the cleaning chamber is open to form a cleaning opening, through which the welding gun's contact tip enters the cleaning chamber. When the contact tip cleaning drive rod 42 drives the contact tip cleaning member 43 to rotate, the contact tip steel brush within the contact tip cleaning member 43 rotates relative to the welding gun's contact tip to clean the contact tip. Furthermore, the contact tip cleaning drive rod 42 is hollow within a debris drop channel. Debris dropped during the cleaning process falls through the opening at the lower end of the cleaning chamber and into the recovery box 91 through this debris drop channel.

[0126] The conductive nozzle replacement equipment provided in this application can realize automated replacement operations, solving the problems of line stoppage and low efficiency caused by manual replacement of conductive nozzles and nozzles; it has the functions of nozzle disassembly and cleaning, and conductive nozzle disassembly and cleaning, solving the problem of equipment failure caused by the conductive nozzle or nozzle welding slag sintering without cleaning; the integrated operation of conductive nozzle assembly and loading and new conductive nozzle filling operations can solve the problem of cumbersome and inefficient processes caused by the separate operations of conductive nozzle assembly and loading and new conductive nozzle filling.

[0127] The above shows and describes the basic principles, main features and advantages of this application. Those skilled in the art should understand that the above embodiments do not limit this application in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation fall within the scope of protection of this application.

Claims

1. A contact tip replacement device, characterized in that: include: The housing (1) comprises a lower mounting plate (14) and an upper mounting plate (13) arranged parallel to and spaced apart from the lower mounting plate (14); A conductive nozzle disassembly and feeding device comprises a conductive nozzle disassembly and feeding mechanism (5) and a conductive nozzle feeding mechanism (6), wherein the conductive nozzle feeding mechanism (6) is mounted on the lower mounting plate (14) and is located below the conductive nozzle disassembly and feeding mechanism (5), and is used to supply a new conductive nozzle to the conductive nozzle disassembly and feeding mechanism (5); The conductive nozzle disassembly and assembly mechanism (5) is mounted on the upper mounting plate (13) and is used to disassemble the conductive nozzle from the welding gun and to install a new conductive nozzle supplied by the conductive nozzle feeding mechanism (6) on the welding gun; A nozzle disassembly and cleaning mechanism (3) is mounted on the upper mounting plate (13) and arranged side by side with the conductive nozzle disassembly and cleaning mechanism (5). The nozzle disassembly and cleaning mechanism (3) is used to disassemble the nozzle of the welding gun, clean the nozzle, and reinstall the nozzle on the welding gun.

2. The contact tip replacement device according to claim 1, characterized in that: The conductive nozzle replacement device further comprises a conductive nozzle cleaning mechanism (4), which is mounted on the upper mounting plate (13) and located on a side of the nozzle disassembly and cleaning mechanism (3) away from the conductive nozzle disassembly and cleaning mechanism (5), and is used to clean the conductive nozzle on the welding gun.

3. The contact tip replacement device according to claim 2, characterized in that: The contact nozzle replacement device further comprises a main drive device (8), and the main drive device (8) comprises: A fixing frame (81) is mounted on the lower surface of the upper mounting plate (13); A main driver (82) is mounted on the fixing frame (81); A first transmission assembly (83) comprises a first driving wheel (831), a first driven wheel (832) and a first synchronous belt (833), wherein the output end of the total driver (82) is coaxially connected to the first driving wheel (831), the first driven wheel (832) is coaxially connected to the driving end of the conductive nozzle cleaning mechanism (4), and the first synchronous belt (833) is wound around the first driving wheel (831) and the first driven wheel (832); A second transmission assembly (84) comprises a second driving wheel (841), a second driven wheel (842) and a second synchronous belt (843), wherein the second driving wheel (841) is coaxially connected to the first driven wheel (832), the second driven wheel (842) is coaxially connected to the driving end of the nozzle disassembly and cleaning mechanism (3), and the second synchronous belt (843) is wound around the second driving wheel (841) and the second driven wheel (842); The third transmission assembly (85) comprises a third driving wheel (851), a third driven wheel (852) and a third synchronous belt (853), wherein the third driving wheel (851) is coaxially connected to the second driven wheel (842), the third driven wheel (852) is coaxially connected to the driving end of the conductive nozzle disassembly and assembly mechanism (5), and the third synchronous belt (853) is wound around the third driving wheel (851) and the third driven wheel (852).

4. The contact tip replacement device according to claim 3, characterized in that: The conductive nozzle disassembly and assembly mechanism (5) comprises a conductive nozzle disassembly and assembly base (51), a conductive nozzle disassembly and assembly drive rod (52) and a conductive nozzle clamping assembly (53), wherein the conductive nozzle clamping assembly (53) is used to clamp the conductive nozzle; the conductive nozzle disassembly and assembly base (51) is mounted on the upper mounting plate (13), the conductive nozzle disassembly and assembly drive rod (52) is rotatably matched with the conductive nozzle disassembly and assembly base (51), and its lower end is transmission-connected to the third driven wheel (852), and its upper end is transmission-connected to the conductive nozzle clamping assembly (53); and / or The nozzle disassembly and cleaning mechanism (3) comprises a nozzle disassembly base (31), a nozzle disassembly driving rod and a nozzle clamping assembly (33), wherein the nozzle clamping assembly (33) is used to clamp the nozzle; the nozzle disassembly base (31) is mounted on the upper mounting plate (13), the nozzle disassembly driving rod is rotatably engaged with the nozzle disassembly base (31), and the lower end of the nozzle disassembly driving rod is transmission-connected to the second driven wheel (842), and the upper end of the nozzle disassembly driving rod is transmission-connected to the nozzle clamping assembly (33); and / or The conductive nozzle cleaning mechanism (4) comprises a conductive nozzle cleaning base (41), a conductive nozzle cleaning drive rod (42) and a conductive nozzle cleaning member (43), wherein the conductive nozzle cleaning base (41) is mounted on the upper mounting plate (13), and the conductive nozzle cleaning member (43) is rotatably mounted on the conductive nozzle cleaning base (41); the upper end of the conductive nozzle cleaning drive rod (42) is transmission-connected to the conductive nozzle cleaning drive rod (42), and the lower end thereof is transmission-connected to the first driven wheel (832).

5. The contact tip replacement device according to claim 4, characterized in that: The conductive nozzle disassembly and assembly mechanism (5) also includes a conductive nozzle floating assembly (54), and the conductive nozzle floating assembly (54) includes a first seat plate (541), a second seat plate (542), a guide rod (543) and a floating elastic member (544). The first seat plate (541) and the second seat plate (542) are arranged in parallel and spaced apart. The first seat plate (541) is used for transmission connection with the conductive nozzle disassembly and assembly drive rod (52), and the second seat plate (542) is used for connection with the conductive nozzle clamping assembly (53); one end of the guide rod (543) fixes the second seat plate (542), and the other end thereof is slidably matched with the first seat plate (541) through a linear bearing; the floating elastic member (544) is located between the first seat plate (541) and the second seat plate (542), and is used to realize a floating connection between the first seat plate (541) and the second seat plate (542).

6. The contact tip replacement device according to claim 2, characterized in that: The conductive nozzle replacement device further comprises a wire cutting mechanism (2), wherein the wire cutting mechanism (2) is arranged adjacent to the conductive nozzle disassembly and assembly mechanism (5), and the wire cutting mechanism (2) is used to cut the welding wire at the front end of the welding gun.

7. The contact tip replacement device according to claim 6, characterized in that: The wire cutting mechanism (2) comprises a wire cutting frame (21), a fixed wire cutting knife (22), a movable wire cutting knife (23) and a wire cutting driver (24); the fixed wire cutting knife (22) is fixedly arranged relative to the wire cutting frame (21); the movable wire cutting knife (23) is movably arranged relative to the wire cutting frame (21); the wire cutting driver (24) is fixed to the wire cutting frame (21), and its output end is connected to the movable wire cutting knife (23) and is used to drive the movable wire cutting knife (23) to approach the fixed wire cutting knife (22) to cut the welding wire of the welding gun.

8. The contact tip replacement device according to claim 6, characterized in that: The contact tip replacement device further comprises a recycling system (9), wherein the recycling system (9) comprises: A recovery box (91) is mounted on the lower mounting plate (14); A welding wire conductive nozzle guide groove group (92) is used to guide the welding wire cut by the wire cutting mechanism (2) to the recovery box (91), and to guide the conductive nozzle removed by the conductive nozzle disassembly mechanism (5) to the recovery box (91); A nozzle cleaning guide groove (93) for guiding debris generated by the nozzle cleaning mechanism (3) when cleaning the nozzle to the recovery box (91); The conductive nozzle cleaning guide groove (94) is used to guide the debris generated by the conductive nozzle cleaning mechanism (4) when cleaning the conductive nozzle to the recovery box (91).

9. The contact tip replacement device according to claim 8, characterized in that: The conductive nozzle disassembly and feeding device further comprises a position switching mechanism (7), which is mounted on the lower mounting plate (14) and is used to drive the conductive nozzle feeding mechanism (6) to move in a horizontal direction, so that the conductive nozzle feeding mechanism (6) can deliver a new conductive nozzle to a loading position of the conductive nozzle disassembly and feeding mechanism (5) and avoid a waiting position of the conductive nozzle disassembly and feeding mechanism (5).

10. The contact tip replacement device according to claim 9, characterized in that: The welding wire conductive nozzle guide groove group (92) includes a first guide groove (921), a second guide groove (922), a third guide groove (923) and a fourth guide groove (924), wherein the lower end of the first guide groove (921) is fixed to the upper surface of the upper mounting plate (13), and the upper end thereof is located below the wire cutting mechanism (2); the upper end of the second guide groove (922) is fixed to the lower surface of the upper mounting plate (13), and the lower end thereof is located above the third guide groove (923); the upper mounting plate (13) has a first opening connecting the first guide groove (921) and the second guide groove (922); the upper end of the third guide groove (923) is fixed to the conductive nozzle feeding mechanism (6), and the lower end thereof is located above the fourth guide groove (924); the upper end of the fourth guide groove (924) is fixed to the position switching mechanism (7), and the lower end thereof is located above the recovery box (91).

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