Contact tip feeding mechanism, contact tip disassembly and feeding device and contact tip replacement equipment

Abstract

This application belongs to the field of welding technology and discloses a conductive tip feeding mechanism, a conductive tip disassembly and feeding device, and a conductive tip replacement device. The conductive tip feeding mechanism includes a frame, a conductive tip clip, a push rod, a toggle assembly, a transmission assembly, and a feeding driver. The conductive tip clip has multiple receiving cavities arranged sequentially along its extension direction. The feeding driver drives the push rod to reciprocate along its extension direction. During the movement of the push rod, it can enter the receiving cavity through the lower opening and push the conductive tip out of the receiving cavity through the upper opening. Furthermore, the feeding driver also drives the toggle assembly to reciprocate along the extension direction of the conductive tip clip via the transmission assembly. During the movement of the toggle assembly, the conductive tip clip can move together with the toggle assembly or the toggle assembly can move independently. That is, each operation of the feeding driver completes the feeding of the conductive tip clip and the conductive tip, resulting in high efficiency, lower cost, and a more compact structure.

Description

Technical Field

[0001] This application relates to the field of welding technology, specifically to a conductive tip feeding mechanism, a conductive tip disassembly and feeding device, and a conductive tip replacement device. Background Technology

[0002] A welding torch mainly consists of a torch body, a contact tip, a nozzle, a wire guide, a gas guide, a control switch, and cables. These components are mechanically assembled and electrically connected to form a unified whole, working together to achieve functions such as wire conductivity, gas protection, and welding operation. The contact tip is installed at the front of the welding torch, and the nozzle is fitted over the contact tip. The contact tip is responsible for conducting the welding current, creating an electric arc between the welding wire and the workpiece; the nozzle is used to spray shielding gas to isolate the workpiece from the air. The contact tip is a consumable part of the welding torch. When the contact tip wears or is damaged, it will lead to a decrease in welding quality. Therefore, the contact tip needs to be replaced regularly to ensure welding quality.

[0003] In related technologies, during the contact tip replacement process, multiple contact tips are typically placed one by one into the multiple receiving cavities of the contact tip magazine. Then, a contact tip feeding mechanism delivers the new contact tip from the magazine to the contact tip mounting mechanism, which then assembles the new contact tip onto the welding torch. To ensure the contact tip replacement operation can continue, a magazine drive mechanism is also needed to move the contact tip magazine to the execution end of the contact tip feeding mechanism, so that the feeding mechanism can smoothly deliver the new contact tip from the magazine to the mounting mechanism.

[0004] In other words, the conductive tip feeding operation typically involves two steps: first, aligning the cavity containing the new conductive tip within the conductive tip magazine with the actuating end of the conductive tip feeding mechanism; then, using the conductive tip feeding mechanism to move the conductive tip within the magazine to the conductive tip mounting mechanism. These two steps are then repeated to achieve continuous conductive tip replacement. Therefore, this conductive tip feeding scheme is not only cumbersome and inefficient, but also requires two sets of drive mechanisms, increasing equipment costs.

[0005] This section provides background information related to this application, which is not necessarily prior art. Utility Model Content

[0006] The purpose of this application is to solve or at least alleviate some or all of the aforementioned problems. Therefore, the purpose of this application is to provide a conductive nozzle feeding mechanism, a conductive nozzle disassembly and feeding device, and a conductive nozzle replacement equipment, which can complete the conductive nozzle magazine loading and conductive nozzle feeding operations in one go. This not only has high operating efficiency but also lower equipment cost, a more compact structure, and a smaller space occupation.

[0007] To achieve the above objectives, this application adopts the following technical solution:

[0008] In a first aspect, this application provides a conductive nozzle feeding mechanism, comprising:

[0009] Frame;

[0010] A conductive nozzle clip is movably mounted on the frame along its extension direction. The conductive nozzle clip has a plurality of receiving cavities arranged sequentially along its extension direction. The receiving cavities are used to accommodate the conductive nozzle, and the conductive nozzle clip has an upper opening and a lower opening that communicate with the receiving cavities.

[0011] A push rod is movably mounted on the frame along its extension direction. During movement, the push rod can enter the receiving cavity through the lower opening and push the conductive nozzle in the receiving cavity out from the upper opening.

[0012] A toggle assembly is movably mounted on the frame along the extending direction of the conductive nozzle clip, and the toggle assembly can move together with the conductive nozzle clip or move independently during movement.

[0013] The transmission assembly is movably mounted on the frame.

[0014] A feeding driver is fixed to the frame, and the output end of the feeding driver is connected to the push rod and the transmission assembly for driving the push rod to reciprocate along its extension direction, and driving the transmission assembly to cause the paddle assembly to reciprocate along the extension direction of the conductive nozzle clip.

[0015] As an optional embodiment of the conductive nozzle feeding mechanism, the conductive nozzle clip has multiple stop protrusions spaced apart along its extension direction; the toggle assembly includes a positioning member, a toggle block, and an elastic member. The positioning member is movably mounted on the frame along the extension direction of the conductive nozzle clip. One end of the toggle block is pivotally connected to the positioning member, and the other end has a toggle block protrusion that cooperates with the stop protrusions. There is a gap between the toggle block and the positioning member, and the elastic member is disposed within the gap between the toggle block and the positioning member. During the movement of the toggle assembly, the toggle block protrusion can move the conductive nozzle clip together, or the toggle block can move independently to reset.

[0016] As an optional embodiment of the conductive nozzle feeding mechanism, the push block protrusion has a first inclined surface and a first straight surface arranged opposite to each other, and the stop protrusion has a second inclined surface and a second straight surface arranged opposite to each other.

[0017] During the movement of the dial, when the first inclined surface and the second inclined surface abut against each other, the dial moves independently; when the first straight surface and the second straight surface abut against each other, the dial convex pushes the conductive nozzle clip to move together.

[0018] As an optional embodiment of the conductive nozzle feeding mechanism, the frame includes a vertical frame, an upper guide member, and a lower guide member. The top rod is movably mounted on the vertical frame along its extension direction. The upper guide member and the lower guide member are arranged parallel to each other and fixed to the vertical frame. The upper guide member and the lower guide member cooperate to form a guide channel. The conductive nozzle clip is movably mounted in the guide channel along its extension direction. The upper guide member has an upper through hole that can communicate with the upper opening, and the lower guide member has a lower through hole that can communicate with the lower opening.

[0019] As an optional solution for the conductive nozzle feeding mechanism, the frame also includes an upper limit plate and a lower limit plate. The upper limit plate is fixed to the upper guide member, and the lower limit plate is fixed to the lower guide member. The upper limit plate and the lower limit plate cooperate to form a limiting guide groove that is parallel to the guide channel. The positioning member is movably installed in the limiting guide groove.

[0020] As an optional embodiment of the conductive nozzle feeding mechanism, the transmission assembly includes a transmission plate and a transmission shaft. One end of the transmission plate is rotatably mounted on the upright frame, and the other end is connected to the positioning member. The transmission plate has an arc-shaped drive groove and an arc-shaped slot. One end of the transmission shaft is connected to the feeding driver, and the other end is slidably engaged with the arc-shaped drive groove. The positioning member is provided with a connecting shaft, and the other end of the connecting shaft is slidably engaged with the arc-shaped slot. During the movement of the transmission shaft, the engagement between the transmission shaft and the arc-shaped drive groove, as well as the engagement between the connecting shaft and the arc-shaped slot, enables the transmission plate to swing, thereby causing the positioning member to move along the extension direction of the conductive nozzle clip.

[0021] As an optional embodiment of the conductive nozzle feeding mechanism, the transmission plate also has a linear guide groove that connects with the arc-shaped drive groove, the linear guide groove being able to extend along the extension direction of the push rod.

[0022] As an optional embodiment of the conductive nozzle feeding mechanism, the conductive nozzle feeding mechanism further includes a detection mounting plate and a detection element. The detection mounting plate is fixed to the upper guide member, and the detection element is mounted on the detection mounting plate and located between the upper guide member and the lower guide member. The conductive nozzle clip has a detection hole communicating with the receiving cavity. During the movement of the conductive nozzle clip, the detection hole can be positioned opposite to the detection element.

[0023] Thirdly, this application provides a conductive tip disassembly and feeding device, including a conductive tip disassembly and feeding mechanism, a position switching mechanism, and a conductive tip feeding mechanism as described above. The conductive tip disassembly and feeding mechanism is used to remove a conductive tip from a welding torch or to install a conductive tip onto the welding torch. The conductive tip feeding mechanism is located below the conductive tip disassembly and feeding mechanism and is used to supply conductive tips to the conductive tip disassembly and feeding mechanism. The position switching mechanism is located below the conductive tip disassembly and feeding mechanism and is used to drive the conductive tip feeding mechanism to move horizontally, so that the conductive tip feeding mechanism has a loading position that can deliver a new conductive tip to the conductive tip disassembly and feeding mechanism and a waiting position that avoids the conductive tip disassembly and feeding mechanism.

[0024] Thirdly, this application provides a conductive tip replacement device, including a housing and a conductive tip disassembly and feeding device as described above, wherein the conductive tip disassembly and feeding device is installed on the housing.

[0025] The beneficial effects of this application are as follows:

[0026] The conductive tip feeding mechanism provided in this application includes a frame, a conductive tip magazine, a push rod, a toggle assembly, a transmission assembly, and a feeding driver. The conductive tip magazine has multiple receiving cavities arranged sequentially along its extension direction. The feeding driver drives the push rod to reciprocate along its extension direction. During the movement of the push rod, it can enter the receiving cavity through the lower opening and push the conductive tip out of the receiving cavity through the upper opening. In addition, the feeding driver also drives the toggle assembly to reciprocate along the extension direction of the conductive tip magazine through the transmission assembly. During the movement of the toggle assembly, the conductive tip magazine can move together or the toggle assembly can move independently. That is, the feeding driver can complete the feeding operation of the conductive tip magazine and the feeding operation of the conductive tip in one operation, which has high operating efficiency, lower cost, and more compact structure.

[0027] The electrode nozzle disassembly and feeding device provided in this application includes a electrode nozzle disassembly and feeding mechanism, an electrode nozzle feeding mechanism, and a position switching mechanism. The position switching mechanism is used to drive the electrode nozzle feeding mechanism to move along a first horizontal direction, so that the electrode nozzle feeding mechanism has a feeding position that can deliver a new electrode nozzle to the electrode nozzle disassembly and feeding mechanism and a waiting position that avoids the electrode nozzle disassembly and feeding mechanism. The electrode nozzle disassembly and feeding mechanism removes the electrode nozzle from the welding gun or installs a new electrode nozzle on the welding gun. The disassembly and assembly of the electrode nozzle can be realized by using only one electrode nozzle disassembly and feeding mechanism. Disassembly and assembly can be carried out at the same station, improving work efficiency. Moreover, the electrode nozzle feeding mechanism and the position switching mechanism are both located below the electrode nozzle disassembly and feeding mechanism, which makes the overall structure more compact and occupies less space.

[0028] The conductive nozzle replacement equipment provided in this application, by applying the above-mentioned conductive nozzle disassembly and feeding device, not only has high operating efficiency, but also a more compact overall structure and a smaller space occupation.

[0029] Furthermore, this conductive nozzle replacement equipment can automate the replacement process, solving the problems of line stoppage and low efficiency caused by manual replacement of conductive nozzles and nozzles; it has nozzle disassembly and cleaning functions as well as conductive nozzle disassembly and cleaning functions, solving the equipment failure problem caused by uncleaned welding slag on conductive nozzles or nozzles; the integrated operation of conductive nozzle assembly and feeding and new conductive nozzle replenishment can solve the problem of cumbersome and inefficient process caused by separate operations of conductive nozzle assembly and feeding and new conductive nozzle replenishment. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this application and these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the conductive nozzle replacement device provided in the embodiments of this application.

[0032] Figure 2 This is a first structural schematic diagram of the hidden portion of the housing of the conductive nozzle replacement device provided in this application embodiment, in one direction.

[0033] Figure 3 This is a schematic diagram of the hidden portion of the housing of the conductive nozzle replacement device provided in this application embodiment, from another direction.

[0034] Figure 4 This is a schematic diagram of the hidden housing of the conductive nozzle replacement device provided in this application embodiment, in one direction.

[0035] Figure 5 This is a schematic diagram of the hidden housing of the conductive nozzle replacement device provided in this application embodiment from another direction.

[0036] Figure 6 This is a schematic diagram of the conductive nozzle disassembly and feeding device provided in the embodiments of this application.

[0037] Figure 7 This is a cross-sectional schematic diagram of the conductive nozzle disassembly and feeding device provided in the embodiments of this application.

[0038] Figure 8 This is a schematic diagram of the position switching mechanism provided in the embodiments of this application.

[0039] Figure 9 This is a schematic diagram of the conductive nozzle feeder provided in one direction according to an embodiment of this application.

[0040] Figure 10This is a partial cross-sectional schematic diagram of the conductive nozzle feeding mechanism provided in the embodiments of this application.

[0041] Figure 11 This is a schematic diagram of the conductive nozzle feeding mechanism provided in an embodiment of this application from another direction.

[0042] Figure 12 This is a partial structural schematic diagram of the conductive nozzle feeding mechanism provided in the embodiments of this application.

[0043] Figure 13 This is a partially exploded schematic diagram of the conductive nozzle feeding mechanism provided in the embodiments of this application.

[0044] Figure 14 This is a schematic diagram of the nozzle disassembly and cleaning mechanism provided in the embodiments of this application.

[0045] Figure 15 This is a schematic diagram of the conductive nozzle cleaning mechanism provided in the embodiments of this application.

[0046] Figure label:

[0047] 100. Control system; 200. Detection mechanism; 201. Support; 202. Sensor;

[0048] 1. Housing; 11. Support frame; 12. Base plate; 13. Upper mounting plate; 14. Lower mounting plate; 15. Top plate; 151. Inspection clearance hole; 152. Wire shearing clearance hole; 153. Nozzle clearance hole; 154. Conductive nozzle clearance hole; 155. Cleaning clearance hole; 16. Sealing plate; 101. Bottom mounting space; 102. Middle mounting space; 103. Top mounting space;

[0049] 2. Wire cutting mechanism; 21. Wire cutting frame; 22. Fixed wire cutting blade; 23. Movable wire cutting blade; 24. Wire cutting driver;

[0050] 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 component;

[0051] 4. Conductive nozzle cleaning mechanism; 41. Conductive nozzle cleaning base; 42. Conductive nozzle cleaning drive rod; 43. Conductive nozzle cleaning component;

[0052] 5. Conductive tip assembly / disassembly mechanism; 51. Conductive tip assembly / disassembly base; 511. Base body; 512. Support rod; 52. Conductive tip assembly / disassembly drive rod; 520. Transmission channel; 53. Conductive tip clamping assembly; 531. Claw; 5310. Clamping channel; 532. Pneumatic rotary chuck; 5320. Installation channel; 54. Conductive tip floating assembly; 541. First base plate; 542. Second base plate; 543. Guide rod; 544. Floating elastic element; 545. Limiting rod;

[0053] 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. Receiving cavity; 6201. Upper opening; 6202. Lower opening; 621. Stop protrusion; 6211. Second inclined surface; 6212. Second straight surface; 63. Push rod; 64. Feed driver; 65. Pulley assembly; 651. Positioning component; 6 510. Positioning groove; 6511. Connecting shaft; 652. Pulley block; 6520. Pulley protrusion; 65201. First inclined surface; 65202. First straight surface; 653. Elastic element; 654. First pivot; 66. Transmission assembly; 661. Transmission plate; 6611. First plate; 66111. Arc-shaped drive groove; 66112. Linear guide groove; 6612. Second plate; 66120. Arc-shaped groove; 662. Transmission shaft; 663. Second pivot; 67. Detection mounting plate; 68. Detection component;

[0054] 7. Position switching mechanism; 71. Fixing plate; 72. Position drive assembly; 721. Connecting plate; 722. Position driver; 73. Guide assembly; 731. Slide rail; 732. Slider;

[0055] 8. Main drive unit; 81. Fixed frame; 82. Main driver; 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;

[0056] 9. Recycling system; 91. Recycling box; 92. Welding wire conductive tip guide groove assembly; 921. First guide groove; 922. Second guide groove; 923. Third guide groove; 924. Fourth guide groove; 93. Nozzle cleaning guide groove; 94. Conductive tip cleaning guide groove. Detailed Implementation

[0057] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0058] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0059] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.

[0060] In this application, the terms "connection," "combination," "coupling," and "installation" can 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 the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0061] In this application, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the values ​​and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​not using relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0062] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0063] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0064] This application provides an arc welding device, including a welding torch, a wire feeding mechanism, a gas supply system, and an electrical control system. The welding torch is used to conduct current and deliver welding wire and shielding gas; the wire feeding mechanism is used to stably push the welding wire through the welding torch into the arc zone; the gas supply system is used to provide and regulate the shielding gas to form an air-isolated barrier around the arc and the molten pool to prevent metal oxidation; and the electrical control system is used to control welding parameters to ensure welding quality.

[0065] This application also provides a welding torch, including a torch body, a conductive tip, a nozzle, a wire guide, a gas guide, a control switch, and a cable. The torch body is the main structural component, supporting all parts and connecting to the welding torch. The conductive tip is installed at the front end of the torch body and is responsible for conducting welding current, generating an arc between the welding wire and the workpiece. The nozzle surrounds the conductive tip and is used to spray shielding gas to isolate air. The wire guide guides the welding wire for smooth delivery, and the gas guide ensures unobstructed shielding gas flow. The control switch can trigger or cut off the welding current, and the cable transmits power and control signals. All components are mechanically assembled and electrically connected to form a whole. The welding wire extends from the conductive tip through the wire guide, and the shielding gas forms a gas shield through the nozzle, thereby achieving the functions of welding wire melting, arc stabilization, and molten pool protection during welding, ensuring welding quality and efficiency.

[0066] Since the contact tip is a consumable part of the welding torch, wear and damage to the contact tip can lead to a decrease in welding quality. Therefore, it is necessary to replace the contact tip regularly to ensure welding quality. The contact tip replacement process is usually as follows: first, remove the nozzle of the welding torch, then remove the contact tip, then install the new contact tip, and finally reinstall the previously removed nozzle onto the new contact tip. The entire replacement process involves many steps. If done manually, it requires stopping the production line. Furthermore, manual replacement is not only labor-intensive and inefficient, but also poses certain safety hazards.

[0067] To achieve automated replacement of the contact tip, such as Figures 1 to 3 As shown, this application also provides a conductive nozzle replacement device, which can be used to automatically replace conductive nozzles, solving problems such as line stoppage, low efficiency, and personnel safety caused by manual replacement of conductive nozzles.

[0068] 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 recycling system 9, a detection mechanism 200, and a control system 100. The welding torch includes a wire-cutting mechanism 2 for cutting the welding wire at the end of the welding torch; a nozzle removal and cleaning mechanism 3 for removing, cleaning, and reassembling the nozzles on the welding torch; a conductive tip cleaning mechanism 4 for cleaning the conductive tips on the welding torch; a conductive tip removal and feeding device including a conductive tip removal and feeding mechanism 5 and a conductive tip feeding mechanism 6, wherein the conductive tip removal and feeding mechanism 5 removes the conductive tips from the welding torch and assembles the new conductive tips supplied by the conductive tip feeding mechanism 6 onto the welding torch; a main drive unit 8 provides power for the operation of the nozzle removal and cleaning mechanism 3, the conductive tip cleaning mechanism 4, and the conductive tip removal and feeding mechanism 5; a recycling system 9 for recycling debris generated during the entire conductive tip replacement process, such as cut welding wire and welding slag falling off during the cleaning process; a detection mechanism 200 for detecting whether there is welding wire, a nozzle, or a conductive tip at the end of the welding torch; and a control system 100 for cooperating with other components to achieve automated operation.

[0069] The core components of the conductive nozzle replacement device for replacing conductive nozzles include a nozzle disassembly and cleaning mechanism 3 and a conductive nozzle disassembly and feeding device. The main auxiliary components include a detection mechanism 200, a main drive unit 8, and a control system 100. Secondary auxiliary components include a wire-cutting mechanism 2 and a recycling system 9. It should be noted that those skilled in the art can arbitrarily combine two or more of the following components—detection mechanism 200, wire-cutting mechanism 2, nozzle disassembly and cleaning mechanism 3, conductive nozzle cleaning mechanism 4, conductive nozzle disassembly and feeding device, main drive unit 8, control system 100, and recycling system 9—based on the conductive nozzle replacement device disclosed in this application, according to actual operational needs. Such combinations of components based on this conductive nozzle replacement device should be understood as being within the scope of protection of this application.

[0070] To better understand the workflow of the contact tip replacement device, please refer to... Figures 1 to 3 As shown, based on all the main components of this contact tip replacement device, the contact 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 checks 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 removal and cleaning mechanism 3 removes the nozzle at the front end of the welding gun. 4) The detection mechanism 200 checks whether there is a contact tip at the front end of the welding gun. 5) If there is a contact tip at the front end of the welding gun, the contact tip cleaning mechanism 4 cleans the contact tip at the front end of the welding gun. 6) The contact tip removal and feeding device removes the original contact tip of the welding gun and assembles the new contact tip onto the welding gun. 7) The detection mechanism 200 checks whether the welding gun has been assembled with a new contact tip. 8) If the welding gun has been assembled with a new contact tip, the nozzle removal and cleaning mechanism 3 reassembles the previously removed nozzle onto the contact tip of the welding gun. 9) The detection mechanism 200 checks whether the nozzle is properly assembled.

[0071] It should be noted that the nozzle cleaning operation is carried out in the process from 4) to 7). That is, after the nozzle is removed by the nozzle disassembly and cleaning mechanism 3, the welding torch immediately leaves the nozzle disassembly and cleaning mechanism 3 and moves to the inspection mechanism 200 for inspection and subsequent processes. The nozzle disassembly and cleaning mechanism 3 cleans the nozzle before the nozzle is assembled.

[0072] Furthermore, during the contact tip replacement process, the welding wire cut by the wire cutting mechanism 2, the debris generated by the nozzle cleaning mechanism 3, the debris generated by the contact tip cleaning mechanism 4, and the old contact tips removed by the contact tip disassembly and assembly mechanism 5 are all recycled by the recycling system 9. This setup, on the one hand, saves material costs by recycling recyclable items; on the other hand, collecting debris or old contact tips generated during the replacement process helps maintain the overall cleanliness of the equipment, reducing the workload for subsequent equipment maintenance.

[0073] Next, combined Figures 1 to 11 As shown, the implementation schemes for all major components of the conductive nozzle replacement device are described in detail.

[0074] like Figures 1 to 5 As shown, the housing 1 serves as the supporting structure for the remaining components. 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 recycling system 9 are all installed on the housing 1.

[0075] The housing 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, lower mounting plate 14, upper mounting plate 13, and top plate 15 are arranged in parallel from bottom to top, forming three mounting spaces. The support frame 11 extends vertically and serves as a support structure between adjacent base plates 12, lower mounting plates 14, upper mounting plates 13, and top plates 15. The sealing plate 16 surrounds the support frame 11 and is used to enclose the three mounting spaces. It can shield the equipment inside the housing 1, providing safety protection for the equipment inside the housing 1 and preventing external dust and debris from entering the housing 1. It can also improve the overall appearance of the equipment.

[0076] For ease of description, the three installation spaces are referred to as the bottom installation space 101, the middle installation space 102, and the top installation space 103, respectively. The bottom installation space 101 is mainly used to install the control system 100 of the equipment. Of course, some structures of other components are also housed in the bottom installation space 101, such as some structures of the conductive nozzle feeding mechanism 6. The middle installation space 102 is mainly used to install the recycling system 9 and the main drive device 8 of the equipment. Of course, some structures of other components are also housed in the middle installation space 102, such as some structures of the conductive nozzle disassembly and assembly mechanism 5, some structures of the nozzle disassembly and assembly cleaning mechanism 3, and some structures of the conductive nozzle cleaning mechanism 4. The top installation space 103 is mainly used to install the conductive nozzle disassembly and assembly mechanism 5, the nozzle disassembly and assembly cleaning mechanism 3, the conductive nozzle cleaning mechanism 4, the wire cutting mechanism 2, and the detection mechanism 200. Of course, some structures of other components are also housed in the top installation space 103, such as some structures of the recycling system 9.

[0077] In addition, to facilitate the corresponding work processes, the top plate 15 has a detection clearance hole 151, a wire-cutting clearance hole 152, a nozzle clearance hole 153, a conductive tip clearance hole 154, and a cleaning clearance hole 155. During the detection process, the front end of the welding torch can be inspected at the detection clearance hole 151; during the wire-cutting process, the welding wire at the front end of the welding torch can be cut at the wire-cutting clearance hole 152; during the nozzle disassembly and assembly process, the nozzle at the front end of the welding torch can be disassembled and assembled at the nozzle clearance hole 153; during the conductive tip replacement process, the conductive tip at the front end of the welding torch can be replaced at the conductive tip clearance hole 154; during the conductive tip cleaning process, the conductive tip at the front end of the welding torch can be cleaned at the cleaning clearance hole 155.

[0078] 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 mounted on the bracket 201. The sensor 202 has a detection position, which is opposite to the detection clearance hole 151, so that the front end of the welding torch can enter the detection position through the detection clearance hole 151, and the sensor 202 can detect the condition of the front end of the welding torch.

[0079] The wire cutting mechanism 2 includes a wire cutting frame 21, a fixed wire cutting blade 22, a movable wire cutting blade 23, and a wire cutting driver 24. The wire cutting frame 21 is fixed to the top plate 15. The fixed wire cutting blade 22 is fixed relative to the wire cutting frame 21, and the movable wire cutting blade 23 is slidably disposed 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 blade 23, driving the movable wire cutting blade 23 to approach the fixed wire cutting blade 22 to cut the welding wire of the welding gun. Furthermore, the gap between the fixed wire cutting blade 22 and the movable wire cutting blade 23 serves as the wire cutting execution end of the wire cutting mechanism 2, positioned opposite the wire cutting clearance hole 152, so that the welding wire of the welding gun can enter between the fixed wire cutting blade 22 and the movable wire cutting blade 23 through the wire cutting clearance hole 152, thereby cutting the welding wire.

[0080] The clamping end of the nozzle disassembly and cleaning mechanism 3 is arranged opposite to the nozzle clearance hole 153 so that the nozzle of the welding gun can enter the clamping end of the nozzle disassembly and cleaning mechanism 3 through the nozzle clearance hole 153, and the clamping end of the nozzle disassembly and cleaning mechanism 3 can clamp the nozzle.

[0081] The clamping end of the contact tip assembly / disassembly mechanism 5 is positioned opposite to the contact tip clearance hole 154, so that the contact tip of the welding torch can enter the clamping end of the contact tip assembly / disassembly mechanism 5 through the contact tip clearance hole 154, and the clamping end of the contact tip assembly / disassembly mechanism 5 can clamp the contact tip.

[0082] The cleaning port of the conductive tip cleaning mechanism 4 is arranged opposite to the cleaning clearance hole 155 so that the conductive tip of the welding torch can enter the cleaning port of the conductive tip cleaning mechanism 4 through the cleaning clearance hole 155 so that the conductive tip cleaning mechanism 4 can clean the conductive tip.

[0083] like Figures 4 to 5 As shown, the recycling system 9 includes a recycling box 91, a welding wire and conductive tip guide groove assembly 92, a nozzle cleaning guide groove 93, and a conductive tip cleaning guide groove 94. The recycling box 91 is mounted on the lower mounting plate 14 and is used to collect cut welding wire, old conductive tips, and debris generated during nozzle cleaning. Cut welding wire and old conductive tips fall into the recycling box 91 via the welding wire and conductive tip guide groove assembly 92; debris generated during nozzle cleaning falls into the recycling box 91 via the nozzle cleaning guide groove 93; and debris generated during conductive tip cleaning falls into the recycling box 91 via the conductive tip cleaning guide groove 94. This arrangement allows for the recycling of recyclable items, saving material costs, maintaining equipment cleanliness, and reducing the workload of staff in subsequent equipment maintenance.

[0084] 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, and its upper end is located below the wire cutting mechanism 2. The first guide groove 921 is inclined 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 guide groove 921 and the second guide groove 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 can receive old contact tips dropped from the contact tip removal mechanism 5, and the other end of the third guide groove 923 connects to the upper end of the fourth guide groove 924. The lower end of the fourth guide groove 924 is located above the recycling 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 via the first guide groove 921, the second guide groove 922, the third guide groove 923, and the fourth guide groove 924, and the old contact tip falls into the recycling box 91 via the third guide groove 923 and the fourth guide groove 924.

[0085] The welding wire contact tip guide groove assembly 92, by combining different arrangement methods of the guide grooves, can achieve the joint recycling of welding wire and old contact tips, making the equipment structure more compact, saving the use of parts, and facilitating equipment assembly. In one embodiment, the first guide groove 921, the second guide groove 922, the third guide groove 923, the fourth guide groove 924, the nozzle cleaning guide groove 93, and the contact tip cleaning guide groove 94 can all be made of stainless steel. Stainless steel has high structural strength, good heat resistance, long service life, and does not require frequent replacement.

[0086] The main drive unit 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 conductive nozzle cleaning mechanism 4, the nozzle disassembly and cleaning mechanism 3, and the conductive nozzle disassembly and assembly 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 may be a servo motor with a reducer.

[0087] 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 main driver 82 is coaxially connected to the first driving wheel 831, the first driven wheel 832 is coaxially connected to the drive 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.

[0088] 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 and the first driven wheel 842 are coaxially connected (both are installed at the output end of the conductive nozzle cleaning mechanism 4). The second driven wheel 842 is coaxially connected to the drive end of the nozzle removal 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 press against the second synchronous belt 843, so that the second synchronous belt 843 is in close cooperation with the second driving wheel 841 and the second driven wheel 842, ensuring 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 removal and cleaning mechanism 3.

[0089] 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 and the second driven wheel 852 are coaxially connected (both are installed on the drive end of the nozzle removal and cleaning mechanism 3). The third driven wheel 852 is coaxially connected to the drive end of the conductive nozzle removal and installation 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 press against the third synchronous belt 853, so that the third synchronous belt 853 is in close cooperation 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 removal and installation mechanism 5.

[0090] The main drive unit 8 provided in this application can drive three different mechanisms by using one main driver 82 in conjunction with three transmission components, eliminating the need for multiple drivers, which not only saves component costs but also makes the overall structure of the equipment more compact.

[0091] like Figures 6 to 7 As shown, in the conductive tip disassembly and feeding device, the conductive tip disassembly mechanism 5 is used to remove the conductive tip of the welding gun and assemble the new conductive tip onto the welding gun. The conductive tip feeding mechanism 6 is used to supply the new conductive tip to the conductive tip disassembly and feeding mechanism 5, so that the old conductive tip can be removed and the new conductive tip can be assembled at the same station using one set of conductive tip disassembly and feeding mechanism 5, making the equipment structure more compact and saving the cost of parts.

[0092] Since the contact tip assembly / disassembly mechanism 5 needs to both remove the original contact tip from the welding torch and install the new contact tip provided by the contact tip feeding mechanism 6 onto the welding torch, in order to ensure the smooth execution of both operations, the contact tip assembly / disassembly / feeding device also includes a position switching mechanism 7. The position switching mechanism 7 is used to drive the contact tip feeding mechanism 6 to move along a horizontal first direction, so that the contact tip feeding mechanism 6 has a feeding position and a waiting position. When the contact tip feeding mechanism 6 is in the feeding position, the contact tip feeding mechanism 6 is located directly below the contact tip assembly / disassembly mechanism 5 and can deliver the new contact tip to the contact tip assembly / disassembly mechanism 5 so that the contact tip assembly / disassembly mechanism 5 can hold the new contact tip. When the contact tip feeding mechanism 6 is in the waiting position, the contact tip feeding mechanism 6 avoids being directly below the contact tip assembly / disassembly mechanism 5, so that when the contact tip assembly / disassembly mechanism 5 releases the contact tip it holds, the contact tip can fall (specifically, the contact tip falls into the third guide groove 923, and under the guidance of the third guide groove 923, falls into the recycling box 91 through the fourth guide groove 924).

[0093] During the process of removing the contact tip from the welding torch, the position switching mechanism 7 drives the contact tip feeding mechanism 6 to move to the standby position. After the contact tip removal and installation mechanism 5 removes the contact tip from the welding torch, it releases the contact tip so that it falls into the recycling box 91. During the process of installing the contact tip onto the welding torch, the position switching mechanism 7 drives the contact tip feeding mechanism 6 to move to the loading position. The contact tip feeding mechanism 6 delivers the new contact tip to the contact tip removal and installation mechanism 5, which clamps the new contact tip and installs it onto the welding torch.

[0094] Furthermore, when the conductive tip feeding mechanism 6 is in the loading position, the third guide groove 923 of the recycling system 9 is located below the second guide groove 922, and can receive the welding wire from the second guide groove 922. Under the action of the third guide groove 923, the welding wire falls into the fourth guide groove 924, and then into the recycling box 91 under the action of the fourth guide groove 924. When the conductive tip feeding mechanism 6 moves from the loading position to the waiting position, the third guide groove 923 moves with the conductive tip feeding mechanism 6 to the area below the conductive tip disassembly and assembly mechanism 5 to receive the old conductive tip removed by the conductive tip disassembly and assembly mechanism 5. Under the action of the third guide groove 923, the old conductive tip falls into the fourth guide groove 924, and then into the recycling box 91 under the action of the fourth guide groove 924. In other words, the positions of the first guide groove 921, the second guide groove 922, and the fourth guide groove 924 remain unchanged, while the third guide groove 923 moves with the movement of the conductive tip feeding mechanism 6.

[0095] The contact tip assembly / disassembly mechanism 5 includes 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 connected to the main drive device 8 (specifically, the third driven wheel 852), and its upper end is 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, holding the contact tip, rotates together with the contact tip assembly / disassembly drive rod 52, thereby enabling the contact tip to be unscrewed from the welding torch or tightened onto the welding torch. The conductive tip floating assembly 54 is used so that when the conductive tip is removed, the entire conductive tip removal and assembly mechanism 5 can float downward as the conductive tip rotates, in accordance with the downward loosening of the conductive tip; when the conductive tip is assembled into the welding gun, the entire conductive tip removal and assembly mechanism 5 can float upward as the conductive tip is tightened, in accordance with the upward tightening of the conductive tip.

[0096] The conductive nozzle removal and assembly base 51 includes a base body 511 and support rods 512. The base body 511 is rotatably connected to the conductive nozzle removal and assembly drive rod 52 via bearings. Several support rods 512 are fixed to the periphery 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 removal and assembly drive rod 52, thereby ensuring the stability of the entire conductive nozzle removal and assembly mechanism 5.

[0097] The conductive tip clamping assembly 53 includes a jaw 531 and a pneumatic rotary chuck 532. The pneumatic rotary chuck 532 has an installation channel 5320, and the jaw 531 has a clamping channel 5310 for accommodating the conductive tip. The jaw 531 is spirally and vertically mounted in the installation channel 5320. The pneumatic rotary chuck 532 can drive the jaw 531 to rotate downward to clamp the conductive tip, so that when the entire conductive tip clamping assembly 53 rotates with the conductive tip disassembly and assembly drive rod 52, the conductive tip can be tightened or loosened. The pneumatic rotary chuck 532 can also drive the jaw 531 to rotate upward to release the conductive tip, and when the jaw 531 releases the conductive tip, the conductive tip can fall downward along the clamping channel 5310.

[0098] The conductive nozzle floating assembly 54 includes a first base plate 541, a second base plate 542, a guide rod 543, and a floating elastic element 544. The first base plate 541 and the second base plate 542 are arranged in parallel and spaced apart. The first base plate 541 is used for transmission connection with the conductive nozzle disassembly and assembly drive rod 52, and the second base 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 base plate 542, and the other end is slidably engaged with the first base plate 541 through a linear bearing. The floating elastic element 544 is located between the first base plate 541 and the second base plate 542 and is used to realize the floating connection between the first base plate 541 and the second base plate 542.

[0099] The conductive nozzle floating assembly 54 also includes a limiting rod 545. The first base plate 541 has a through hole through which the limiting rod 545 passes. One end of the limiting rod 545 is fixed to the second base plate 542, and the other end is in clearance fit with the through hole of the first base plate 541. The floating elastic element 544 is sleeved on the limiting rod 545. This arrangement allows the limiting rod 545 to guide and support the floating elastic element 544, preventing misalignment and ensuring stable compression.

[0100] One end of the conductive tip removal and installation drive rod 52 is coaxially connected to the first base plate 541, and the other end is coaxially connected to the third driven wheel 852. The conductive tip removal and installation drive rod 52 has a transmission channel 520 that communicates with the clamping channel 5310. The conductive tip can fall into the transmission channel 520 and fall downward along the transmission channel 520. A new conductive tip can move upward from the transmission channel 520 into the clamping channel 5310 so that the chuck 531 can clamp the new conductive tip.

[0101] like Figure 8 Combination Figure 6 and Figure 7 As shown, the position switching mechanism 7 includes a fixed plate 71 and a position driving component 72. The fixed plate 71 is fixed to the lower mounting plate 14, and the output end of the position driving component 72 is connected to the conductive nozzle feeding mechanism 6 to drive the conductive nozzle feeding mechanism 6 to switch between the feeding position and the waiting position.

[0102] 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 a horizontal first direction and is used to connect with 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 enabling the connecting plate 721 to drive the conductive nozzle feeding mechanism 6 to move as a whole along the horizontal first direction.

[0103] The position switching mechanism 7 also 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 horizontal first direction. The slider 732 slides with the slide rail 731 and is fixedly connected to the connecting plate 721 to ensure that the connecting plate 721 can move stably along the slide rail 731. In this embodiment, there are two guide assemblies 73, which are respectively disposed on the upper and lower parts of the fixed plate 71. In this case, both the upper and lower parts of the connecting plate 721 are slidably connected to the slide rail 731 through the slider 732, which can further improve the stability of the horizontal movement of the connecting plate 721.

[0104] like Figures 9 to 13As 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 toggle assembly 65, and a transmission assembly 66. The frame 61 is fixedly connected to the connecting plate 721 of the position switching mechanism 7. 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 toggle assembly 65 in the second horizontal direction. During the movement of the toggle assembly 65 in the second horizontal direction, the conductive nozzle clip 62 can move in the second horizontal direction to achieve automatic feeding, or the toggle assembly 65 can move independently to achieve reset.

[0105] The frame 61 includes an upright 611, and a feeding driver 64 is fixed to the upright 611. The output end of the feeding driver 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 feeding driver 64 may be a magnetic rodless cylinder.

[0106] The frame 61 also includes an upper guide 612 and a lower guide 613. The upright 611 extends vertically and is fixedly connected to the connecting plate 721 of the position switching mechanism 7. The upper guide 612 and the lower guide 613 are fixed to the upright 611 in parallel at intervals. The upper guide 612 has an upper guide groove and the lower guide 613 has a lower guide groove. The opening of the upper guide groove and the opening of the lower guide groove are arranged opposite to each other so that the upper guide 612 and the lower guide 613 cooperate to form a guide channel. 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. The accommodating cavities 620 are used to accommodate new conductive nozzles. The upper end of the conductive nozzle clip 62 has an upper opening 6201 that communicates with the accommodating cavity 620, and the lower end has a lower opening 6202 that communicates with the accommodating cavity 620. The conductive nozzle can be inserted into the accommodating cavity 620 through the upper opening 6201, and the conductive nozzle cannot fall out or be removed from the lower opening 6202.

[0107] 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 tip spring clip 62 can move within 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 receiving cavities 620 on the conductive tip spring clip 62 communicates with the upper through hole 6120, and its lower opening 6202 communicates with the lower through hole 6130. At this time, the push rod 63 moves upward and passes through the lower through hole 6130 and the lower opening 6202 into the receiving cavity 620. The push rod 63 continues to move upward and can push the conductive tip out from the upper opening 6201 and the upper through hole 6120, and push the conductive tip into the transmission channel 520 of the conductive tip disassembly and assembly drive rod 52, and then lift it into the clamping channel 5310 of the pawl 531 so that the pawl 531 can clamp the conductive tip.

[0108] The conductive tip feeding mechanism 6 also includes a detection mounting plate 67 and a detection element 68. The detection mounting plate 67 is mounted on the upper guide member 612, and the detection element 68 is mounted on the detection mounting plate 67 and located between the upper guide member 612 and the lower guide member 613. The conductive tip magazine 62 has a detection hole communicating with the receiving cavity 620. The detection element 68 can detect whether there is a conductive tip in the receiving cavity 620 of the conductive tip magazine 62 at the detection hole, especially for detecting whether there is a conductive tip in the receiving cavity 620 corresponding to the upper through hole 6120 and the lower through hole 6130, so as to ensure that the push rod 63 can lift the conductive tip to the conductive tip clamping assembly 53 when it is working.

[0109] The support frame 611 also 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 limiting guide groove. The toggle assembly 65 is movably mounted in the limiting guide groove. The feeding driver 64 drives the toggle assembly 65 to move along the second horizontal direction, so that the toggle assembly 65 drives the conductive nozzle clip 62 to move together along the second horizontal direction to realize automatic feeding of the conductive nozzle, or the toggle assembly 65 moves independently to realize the reset of the toggle assembly 65.

[0110] The lever assembly 65 includes a positioning member 651, a lever 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 side of the positioning member 651 facing the conductive nozzle clip 62 has a positioning guide groove. The lever 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 located between the lever 652 and the bottom surface of the positioning guide groove. One end of the lever 652 is rotatably connected to the positioning member 651 through a first pivot 654. The other end of the lever 652 has a claw protrusion 6520. The side of the conductive nozzle clip 62 facing the lever 652 has a stop protrusion 621 that can cooperate with the 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 correspond one-to-one with the receiving cavity 620 of the conductive nozzle clip 62. When the toggle block 652 moves to one side, the pawl protrusion 6520 cooperates with the stop protrusion 621 to drive the stop protrusion 621 to move together with the conductive nozzle clip 62, or the pawl protrusion 6520 moves independently relative to the stop protrusion 621, thereby realizing the individual reset of the toggle block assembly 65.

[0111] The 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 claw protrusion 6520 moves as a whole with the toggle assembly 65, if the first inclined surface 65201 and the second inclined surface 6211 cooperate, the toggle assembly 65 can move independently to achieve a reset; if the first straight surface 65202 and the second straight surface 6212 cooperate, the toggle assembly 65 can push the conductive nozzle clip 62 to move together to achieve automatic feeding of the conductive nozzle clip 62.

[0112] 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 toggle 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 via a second pivot 663. The transmission plate 661 has a drive groove and an arc groove 66120. The drive groove has an arc drive groove 66111 and a linear guide groove 66112 connected together. One end of the transmission shaft 662 is fixedly connected to the feed driver 64, and the other end is slidably engaged with the drive groove. The positioning member 651 of the toggle assembly 65 is provided with a connecting shaft 6511, and the other end of the connecting shaft 6511 is slidably engaged with the arc groove 66120. When the drive shaft 662 moves along the drive groove under the drive of the feed driver 64, the engagement of the drive shaft 662 with the arc-shaped drive groove 66111 and the engagement of the connecting shaft 6511 with the arc-shaped groove 66120 enables the drive plate 661 to swing, thereby causing the toggle assembly 65 to move left and right in the second horizontal direction. When the drive shaft 662 engages 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 push rod 63 can stably rise and fall in the vertical direction.

[0113] 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 upright frame 611 via a second pivot 663, and the first plate 6611 has the aforementioned drive groove, with the arc-shaped drive groove 66111 located below the first plate 6611. The second plate 6612 is connected to the upper end of the first plate 6611, and the upper end of the second plate 6612 has an arc-shaped groove 66120. The side of the positioning member 651 of the toggle assembly 65 away from the toggle 652 is slidably engaged with the arc-shaped groove 66120 via a connecting shaft 6511. This arrangement ensures that when the transmission plate 661 swings as a whole, the positioning member 651 can be driven to move along the second horizontal direction, that is, the toggle assembly 65 moves as a whole along the second horizontal direction.

[0114] When the output end of the feeding driver 64 is at the highest position of the arc-shaped drive groove 66111 of the drive slide, as the output end of the feeding driver 64 descends, the transmission shaft 662 moves downward and cooperates with the arc-shaped drive groove 66111 to realize the clockwise swing of the drive transmission plate 661. The clockwise swing of the drive plate 661 drives the toggle assembly 65 to move to the left. During this process, the first straight surface 65202 of the claw protrusion 6520 of the toggle block 652 and the second straight surface 6212 of the stop protrusion 621 of the conductive nozzle clip 62 cooperate, and the toggle assembly 65 pushes the conductive nozzle clip 62 to move to the left together to realize the automatic feeding of the conductive nozzle clip 62.

[0115] 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 realize the counterclockwise swing of the drive transmission plate 661. The counterclockwise swing of the drive plate 661 then drives the toggle assembly 65 to move to the right along the second horizontal direction. During this process, the first inclined surface 65201 of the claw protrusion 6520 of the toggle block 652 and the second inclined surface 6211 of the stop protrusion 621 of the conductive nozzle spring clip 62 cooperate, and the toggle assembly 65 moves independently to achieve reset.

[0116] It should be noted that, based on the conductive tip feeding mechanism 6, this application also provides a conductive tip installation and feeding device, including a conductive tip installation mechanism and the conductive tip feeding mechanism 6 as described above. The conductive tip installation mechanism can be the same structure as the conductive tip disassembly and assembly mechanism described above, but the conductive tip installation mechanism and the conductive tip feeding mechanism 6 can be arranged vertically or horizontally. In this case, the entire device is only used to realize the feeding and assembly of the conductive tip.

[0117] like Figure 14As shown, the nozzle disassembly and cleaning mechanism 3 includes a nozzle disassembly base 31, a nozzle disassembly drive rod, a nozzle clamping assembly 33, a nozzle floating assembly 34, and a nozzle cleaning assembly 35. The nozzle disassembly base 31 is mounted on the upper mounting plate 13. The nozzle disassembly drive rod is rotatably connected to the nozzle disassembly base 31 via bearings. The lower end of the nozzle disassembly drive rod is connected to the main drive device 8 (specifically, the second driven wheel 842), and its upper end is connected to the nozzle clamping assembly 33, which is used to clamp the nozzle. When the nozzle disassembly drive rod rotates, the nozzle clamping assembly 33 clamps the nozzle and rotates with the nozzle disassembly drive rod to unscrew the nozzle from the welding torch or tighten the nozzle onto the welding torch. The nozzle floating assembly 34 allows the entire nozzle disassembly and cleaning mechanism 3 to float downwards as the nozzle rotates when the nozzle is removed, loosening it downwards; and to float upwards as the nozzle is tightened when it is assembled onto the welding torch, tightening it upwards. The nozzle cleaning assembly 35 is used to clean the removed nozzles to keep them clean and improve the welding quality of the welding torch.

[0118] 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 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 also not be described in detail here.

[0119] Furthermore, the nozzle cleaning assembly 35 includes a nozzle cleaning driver 351 and a nozzle cleaning component 352. The nozzle cleaning driver 351 drives the nozzle cleaning component 352 to move vertically up and down, so that the nozzle cleaning component 352 can contact the nozzle to clean it. The nozzle cleaning component 352 includes a nozzle brush housing and a nozzle bristle brush disposed within the nozzle brush housing. When the nozzle clamping assembly 33 clamps and rotates the nozzle, the bristle brush inside the brush housing cleans the nozzle.

[0120] 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 component 43. The conductive nozzle cleaning base 41 is mounted on the upper mounting plate 13, and the conductive nozzle cleaning component 43 is rotatably mounted on the conductive nozzle cleaning base 41. The upper end of the conductive nozzle cleaning drive rod 42 is connected to the conductive nozzle cleaning component 43, and its lower end is connected to the main drive device 8 (specifically, the first driven wheel 832) to drive the conductive nozzle cleaning component 43 to rotate. The conductive nozzle cleaning component 43 includes a conductive nozzle brush shell and a conductive nozzle steel brush. The conductive nozzle brush shell has cleaning cavities open at both the upper and lower ends. The conductive nozzle steel brush is disposed inside the conductive nozzle brush shell. When the conductive nozzle cleaning drive rod 42 drives the conductive nozzle cleaning component 43 to rotate, the conductive nozzle steel brush inside the conductive nozzle cleaning component 43 rotates relative to the conductive nozzle entering the cleaning cavity, thereby achieving cleaning of the conductive nozzle.

[0121] The upper end of the cleaning chamber is open to form a cleaning port, through which the conductive tip of the welding torch enters the cleaning chamber. When the conductive tip cleaning drive rod 42 drives the conductive tip cleaning component 43 to rotate, the conductive tip steel brush inside the conductive tip cleaning component 43 rotates relative to the conductive tip of the welding torch, thereby cleaning the conductive tip. Furthermore, the conductive tip cleaning drive rod 42 is hollow to form a debris dropping channel. During the cleaning process, debris falls through the opening at the lower end of the cleaning chamber and into the recycling box 91 through this debris dropping channel.

[0122] 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 nozzle disassembly and cleaning functions as well as conductive nozzle disassembly and cleaning functions, solving the equipment failure problem caused by uncleaned welding slag on conductive nozzles or nozzles; the integrated operation of conductive nozzle assembly and feeding and new conductive nozzle replenishment can solve the problem of cumbersome and inefficient process caused by separate operations of conductive nozzle assembly and feeding and new conductive nozzle replenishment.

[0123] The foregoing has shown and described 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 way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this application.

Claims

1. An electrically conductive tip feed mechanism characterized by, include: Frame (61); A conductive nozzle clip (62) is movably mounted on the frame (61) along its extension direction. The conductive nozzle clip (62) has a plurality of receiving cavities (620) arranged sequentially along its extension direction. The receiving cavities (620) are used to accommodate the conductive nozzle. The conductive nozzle clip (62) has an upper opening (6201) and a lower opening (6202) communicating with the receiving cavities (620). A push rod (63) and a detection element (68) are provided. The push rod (63) is movably mounted on the frame (61) along its extension direction. During movement, the push rod (63) can enter the receiving cavity (620) through the lower opening (6202) and push the conductive nozzle in the receiving cavity (620) out from the upper opening (6201). The detection element (68) is mounted on the frame (61) and is used to detect whether there is a conductive nozzle in the receiving cavity (620) opposite to the push rod (63). The toggle assembly (65) is movably mounted on the frame (61) along the extension direction of the conductive nozzle clip (62), and the toggle assembly (65) can move together with the conductive nozzle clip (62) or move independently during the movement of the toggle assembly (65). A transmission assembly (66) is movably mounted on the frame (61); A feeding driver (64) is fixed to the frame (61), and the output end of the feeding driver (64) is connected to the push rod (63) and the transmission assembly (66) for driving the push rod (63) to reciprocate along its extension direction, and driving the transmission assembly (66) to cause the toggle assembly (65) to reciprocate along the extension direction of the conductive nozzle clip (62).

2. The conductive nozzle feed mechanism of claim 1, wherein, The conductive nozzle clip (62) has a plurality of stop protrusions (621) spaced apart along its extension direction; the lever assembly (65) includes a positioning member (651), a lever (652), and an elastic member (653). The positioning member (651) is movably mounted on the frame (61) along the extension direction of the conductive nozzle clip (62). One end of the lever (652) is pivotally connected to the positioning member (651), and the other end has a stop protrusion (621) spaced apart along its extension direction. 21) A cooperating paddle protrusion (6520), wherein there is a gap between the paddle (652) and the positioning member (651), and the elastic member (653) is disposed within the gap between the paddle (652) and the positioning member (651); during the movement of the paddle assembly (65), the paddle protrusion (6520) of the paddle (652) can move the conductive nozzle clip (62) together, or the paddle (652) can move independently to reset.

3. The conductive tip feed mechanism of claim 2, wherein, The push block 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. During the movement of the toggle block (652), when the first inclined surface (65201) and the second inclined surface (6211) abut against each other, the toggle block (652) moves independently; when the first straight surface (65202) and the second straight surface (6212) abut against each other, the toggle block protrusion (6520) of the toggle block (652) pushes the conductive nozzle clip (62) to move together.

4. The conductive nozzle feed mechanism of claim 2, wherein, The frame (61) includes a stand (611), an upper guide (612), and a lower guide (613). The top rod (63) is movably mounted on the stand (611) along its extension direction. The upper guide (612) and the lower guide (613) are arranged parallel to each other and fixed to the stand (611). The upper guide (612) and the lower guide (613) cooperate to form a guide channel. The conductive nozzle clip (62) is movably mounted in the guide channel along its extension direction. The upper guide (612) has an upper through hole (6120) that can communicate with the upper opening (6201), and the lower guide (613) has a lower through hole (6130) that can communicate with the lower opening (6202).

5. The conductive nozzle feed mechanism of claim 4, wherein, The frame (61) also 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 limiting guide groove that is parallel to the guide channel. The positioning member (651) is movably installed in the limiting guide groove.

6. The conductive nozzle feed mechanism of claim 4, wherein, The transmission assembly (66) includes a transmission plate (661) and a transmission shaft (662). One end of the transmission plate (661) is rotatably mounted on the upright (611), and the other end is connected to the positioning member (651). The transmission plate (661) has an arc-shaped drive groove (66111) and an arc-shaped groove (66120). One end of the transmission shaft (662) is connected to the feeding driver (64), and the other end is slidably engaged with the arc-shaped drive groove (66111). The positioning member (651) is also connected to the upright (66120). The component (651) is provided with a connecting shaft (6511), the other end of which is slidably engaged with the arc-shaped groove (66120); during the movement of the transmission shaft (662), the engagement of the transmission shaft (662) with the arc-shaped drive groove (66111) and the engagement of the connecting shaft (6511) with the arc-shaped groove (66120) can cause the transmission plate (661) to swing, thereby causing the positioning component (651) to move along the extension direction of the conductive nozzle clip (62).

7. The conductive nozzle feed mechanism of claim 6, wherein, The transmission plate (661) also has a linear guide groove (66112) that connects with the arc-shaped drive groove (66111), the linear guide groove (66112) being able to extend along the extension direction of the push rod (63).

8. The conductive nozzle feed mechanism of claim 4, wherein, The conductive nozzle feeding mechanism further includes a detection mounting plate (67) and a detection element (68). The detection mounting plate (67) is fixed to the upper guide member (612), and the detection element (68) is installed on the detection mounting plate (67) and located between the upper guide member (612) and the lower guide member (613). The conductive nozzle spring clip (62) has a detection hole communicating with the receiving cavity (620). During the movement of the conductive nozzle spring clip (62), the detection hole can be positioned opposite to the detection element (68).

9. A conductive tip changeout feeder apparatus, comprising: The device includes a conductive tip removal and installation mechanism (5), a position switching mechanism (7), and a conductive tip feeding mechanism as described in any one of claims 1-8. The conductive tip removal and installation mechanism (5) is used to remove the conductive tip from the welding gun or to install the conductive tip onto the welding gun. The conductive tip feeding mechanism is located below the conductive tip disassembly and assembly mechanism (5) and is used to supply conductive tips to the conductive tip disassembly and assembly mechanism (5); the position switching mechanism (7) is located below the conductive tip disassembly and assembly mechanism (5) and is used to drive the conductive tip feeding mechanism to move in the horizontal direction so that the conductive tip feeding mechanism has a feeding position that can send new conductive tips to the conductive tip disassembly and assembly mechanism (5) and a waiting position that avoids the conductive tip disassembly and assembly mechanism (5).

10. A conductive nozzle replacement apparatus characterized by comprising: It includes a housing (1) and a conductive nozzle disassembly and feeding device as described in claim 9, wherein the conductive nozzle disassembly and feeding device is installed on the housing (1).

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