An automated welding torch consumable changer for robotic welding

Abstract

The application discloses an automatic welding gun consumable replacing device for robot welding, which comprises a welding gun consumable replacing platform, a nozzle dismounting station, a conductive nozzle dismounting station and a conductive nozzle mounting station are arranged on the welding gun consumable replacing platform; the nozzle dismounting station comprises a nozzle dismounting base rotatably arranged on the welding gun consumable replacing platform, and a plurality of first clamping jaws are uniformly arranged on the top of the nozzle dismounting base and are slidably connected to the nozzle dismounting base. The welding gun consumable for robot welding is automatically replaced by using the device with higher automation degree, thereby replacing the manual replacing mode, reducing the labor cost, and using single power energy, and the first clamping jaws and the second clamping jaws can be adapted to nozzles and conductive nozzles with different sizes, respectively, so that the application range is wider; the nozzles and the conductive nozzles are protected during the dismounting process, so that the replacing effect and the use quality of the nozzles and the conductive nozzles are ensured.

Description

Technical Field

[0001] This invention relates to the field of welding robot technology, and more specifically, to an automated welding torch consumable replacement device for robotic welding. Background Technology

[0002] The consumables of welding robots are mainly concentrated at the end of the welding torch. Taking a common arc welding robot (MIG / MAG welding) as an example, its main consumables include: contact tip, nozzle, welding wire, and shielding gas. The replacement of the main body mainly involves the contact tip and nozzle.

[0003] The replacement of conductive nozzles and tips is usually carried out by operators or maintenance personnel when the robot is paused or in standby mode. The quality of the replacement is highly dependent on the operator's skill level and sense of responsibility.

[0004] Tightening torque and TCP verification accuracy can vary from person to person, leading to fluctuations in welding quality. Manual operation carries the risk of forgetting steps. Some automated replacement devices are usually controlled by electric and pneumatic power, which requires two power sources. On-site power and air supply equipment is required, resulting in a high failure rate. They are also large in size, and ordinary clamps cannot clamp cylindrical shapes. Directly clamping the conductive tip or nozzle can easily damage it. Furthermore, the nozzle and conductive tip must be configured and disassembled with flat parts before clamping and disassembly can be performed. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of this invention is to provide an automated welding torch consumable replacement device for robotic welding, so as to solve the problems in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution;

[0007] An automated welding torch consumable replacement device for robotic welding includes a welding torch and welding material replacement platform, wherein the welding torch and welding material replacement platform is provided with a nozzle disassembly and assembly station, a conductive nozzle disassembly station and a conductive nozzle installation station;

[0008] The nozzle assembly / disassembly station includes a nozzle assembly / disassembly base rotatably mounted on a welding torch / weld material replacement platform. The top of the nozzle assembly / disassembly base is slidably connected to evenly distributed first grippers. A first pull rod is inserted through the nozzle assembly / disassembly base. A first electric push rod and a first servo motor are fixedly mounted on the bottom of the welding torch / weld material replacement platform. The output end of the first electric push rod is fixedly connected to the bottom end of the first pull rod. Evenly distributed first levers are hinged to the nozzle assembly / disassembly base. The top of the first lever is connected to an adjacent first gripper. A first limiting groove is provided on the top of the first pull rod, and the bottom of the first lever extends to the inside of the limiting groove. A first torque adjuster is fixedly mounted on the output shaft of the first servo motor. Gears are fixedly mounted on the top of the first torque adjuster and on the nozzle assembly / disassembly base, and transmission is achieved through gear meshing.

[0009] The conductive tip disassembly station includes a conductive tip disassembly base rotatably mounted on a welding torch / weld material replacement platform. The top of the conductive tip disassembly base is slidably connected to evenly distributed second grippers. A second pull rod is inserted through the conductive tip disassembly base. A second electric push rod and a second servo motor are fixedly mounted on the bottom of the welding torch / weld material replacement platform. The output end of the second electric push rod is fixedly connected to the bottom end of the second pull rod. Evenly distributed second levers are hinged to the conductive tip disassembly base. The top of the second lever is connected to an adjacent second gripper. A second limiting groove is provided on the top of the second pull rod, and the bottom of the second lever extends to the inner side of the limiting groove. A second torque adjuster is fixedly mounted on the output shaft of the second servo motor. Gears are fixedly mounted on the top of the second torque adjuster and on the conductive tip disassembly base, and transmission is achieved through gear meshing.

[0010] The conductive tip installation station includes a conductive tip replacement disc rotatably mounted on a welding torch and welding material replacement platform. Evenly distributed conductive tip installation tubes are rotatably mounted on the conductive tip replacement disc. A stepper motor and a third servo motor are fixedly mounted on the welding torch and welding material replacement platform. The output shaft of the stepper motor is fixedly connected to the conductive tip replacement disc. A third torque adjuster is fixedly connected to the output shaft of the third servo motor. A connecting shaft is fixedly connected to the output shaft of the third torque adjuster. The top of the connecting shaft is inserted into an adjacent conductive tip installation tube.

[0011] As a further description of the above technical solution:

[0012] Both the first lever and the second lever have elliptical holes at their tops, and both the first gripper and the second gripper have integrally formed connecting rods that pass through the interior of adjacent elliptical holes.

[0013] As a further description of the above technical solution:

[0014] The second pull rod has a through hole running vertically through it, and the diameter of the through hole is larger than the diameter of the conductive nozzle to be disassembled.

[0015] As a further description of the above technical solution:

[0016] The conductive nozzle mounting tube includes a rotating disk rotatably mounted on a conductive nozzle replacement disk. A connecting tube is slidably connected to the rotating disk. A first spring is fixedly installed between the top of the rotating disk and the connecting tube. The inner diameter shape of the connecting tube matches the shape of the conductive nozzle to be installed. A hexagonal groove matching the connecting shaft is opened at the bottom of the connecting tube.

[0017] As a further description of the above technical solution:

[0018] The clamping surfaces of the first and second clamps are provided with mounting grooves. The inner walls of the mounting grooves are integrally formed with arc-shaped guide blocks. The mounting grooves are provided with clamping blocks that are slidably connected to the arc-shaped guide blocks. The first and second clamps are each threaded with an adjusting screw. One end of the adjusting screw located inside the mounting groove is connected to a second spring, and the other end of the second spring is fixedly connected to the clamping block.

[0019] As a further description of the above technical solution:

[0020] The width of the clamping block gradually decreases in the clockwise direction, and the arc-shaped guide block has an arc-shaped groove on the side near the clamping block to limit the second spring.

[0021] As a further description of the above technical solution:

[0022] A controller is installed on the welding torch and welding material replacement platform. The first electric push rod, the first servo motor, the second electric push rod, the second servo motor, the stepper motor, and the third servo motor are all electrically connected to the controller. The controller is electrically connected to the welding robot.

[0023] As a further description of the above technical solution:

[0024] The conductive nozzle installation station also includes a drive sensor, which is electrically connected to a stepper motor and a controller. The drive sensor is used to monitor the number of rotations of the stepper motor and obtain the rotation angle of the conductive nozzle replacement disc.

[0025] As a further description of the above technical solution:

[0026] The welding torch and welding material replacement platform is internally equipped with two guide tubes and two material drop boxes. The top ends of the two guide tubes extend to the bottom ends of the first and second pull rods, respectively, and the bottom ends of the two guide tubes extend to the top of the two material drop boxes. A pressure sensor is fixedly installed between the bottom of the material drop box and the welding torch and welding material replacement platform. The pressure sensor is used to monitor the weight fluctuation in the material drop box and upload the monitoring data to the controller.

[0027] As a further description of the above technical solution:

[0028] A micro-sensor is fixedly installed on the connecting pipe. The micro-sensor is used to monitor the compression height of the first spring and is electrically connected to the controller.

[0029] Compared with the prior art, the advantages of this invention are:

[0030] (1) In this solution, a more automated device is used to automatically replace the welding gun consumables of the robot welding, replacing the manual replacement mode, reducing labor costs. It uses a single power source, which is more convenient to obtain. The first gripper and the second gripper can be adapted to nozzles and conductive tips of different sizes, making it more widely applicable.

[0031] (2) In this solution, by improving the structure of the first and second grippers and using a ball torque limiter to protect the nozzle and conductive tip during disassembly and assembly, the replacement effect and quality of the nozzle and conductive tip are guaranteed. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the welding torch and welding material replacement platform of the present invention;

[0033] Figure 2 This is a schematic diagram of the nozzle assembly / disassembly station of the present invention;

[0034] Figure 3 This is a schematic diagram of the mounting structure of the first gripper of the present invention;

[0035] Figure 4 This is a schematic diagram of the conductive nozzle mounting station of the present invention;

[0036] Figure 5 This is a front sectional view of the conductive nozzle disassembly station of the present invention.

[0037] Figure 6 This is a schematic diagram of the structure of the conductive nozzle mounting tube of the present invention;

[0038] Figure 7 This is a top cross-sectional view of the first gripper of the present invention;

[0039] Figure 8This is a schematic diagram showing the location of the arc-shaped groove in this invention.

[0040] Explanation of the labels in the diagram:

[0041] 100. Welding torch and welding material replacement platform; 200. Nozzle disassembly and assembly station; 210. Nozzle disassembly and assembly base; 220. First gripper; 221. Connecting rod; 222. Mounting slot; 223. Arc-shaped guide block; 224. Clamping block; 225. Adjusting screw; 226. Second spring; 230. First pull rod; 231. First limiting slot; 240. First electric push rod; 250. First lever; 251. Elliptical hole; 260. First servo motor; 261. First torque adjuster; 300. Conductive nozzle disassembly station; 310. Conductive nozzle disassembly base; 320. Second gripper; 330. Second pull rod; 331. 340. Second limiting groove; 350. Second electric push rod; 360. Second lever; 361. Second servo motor; 400. Second torque adjuster; 410. Conductive nozzle mounting station; 420. Conductive nozzle replacement plate; 430. Stepper motor; 431. Third servo motor; 440. Third torque adjuster; 450. Connecting shaft; 451. Conductive nozzle mounting tube; 452. Rotary disk; 453. Connecting tube; 454. First spring; 455. Hexagonal groove; 460. Micro-sensor; 500. Drive sensor; 600. Controller; 700. Conduit; 710. Drop box; 710. Pressure sensor. Detailed Implementation

[0042] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0043] Please see Figures 1-8 The present invention provides Embodiment 1:

[0044] An automated welding torch consumable replacement device for robotic welding includes a welding torch and welding material replacement platform 100. The welding torch and welding material replacement platform 100 is equipped with a nozzle disassembly and assembly station 200, a contact tip disassembly station 300, and a contact tip installation station 400. The nozzle disassembly and assembly station 200 includes a nozzle disassembly and assembly base 210 rotatably mounted on the welding torch and welding material replacement platform 100. The top of the nozzle disassembly and assembly base 210 is slidably connected to evenly distributed first grippers 220. A first pull rod 230 is inserted through the nozzle disassembly and assembly base 210. A first electric push rod 240 and a first... The output end of the servo motor 260 and the first electric push rod 240 is fixedly connected to the bottom end of the first pull rod 230. The nozzle mounting and disassembly base 210 is hinged with evenly distributed first levers 250. The top of the first levers 250 is connected to the adjacent first gripper 220. The top of the first pull rod 230 is provided with a first limiting groove 231. The bottom of the first levers 250 extends to the inner side of the first limiting groove 231. The output shaft of the first servo motor 260 is fixedly mounted with a first torque adjuster 261. The top of the first torque adjuster 261 and the nozzle mounting and disassembly base 210 are both fixedly mounted with gears and are driven by gear meshing.

[0045] Replacing the conductive tip of the welding robot requires disassembling the nozzle and the conductive tip sequentially. After the welding torch is moved vertically to the nozzle disassembly / removal station 200 and the nozzle is inserted between the first grippers 220, the first electric push rod 240 is energized, driving the first pull rod 230 to pull down. Since the bottom end of the first lever 250 is restricted by the first limiting groove 231 at the top of the first pull rod 230, it moves, using the lever principle to drive the first grippers 220 to move closer together to clamp the nozzle. Then the first servo motor 260 works, driving the nozzle disassembly / removal base 210 to rotate through the first torque adjuster 261 and gear transmission. The rotation of the nozzle by the first grippers 220 on the nozzle disassembly / removal base 210 completes the nozzle disassembly work.

[0046] The contact tip removal station 300 includes a contact tip removal base 310 rotatably mounted on the welding torch / weld material replacement platform 100. The top of the contact tip removal base 310 is slidably connected to evenly distributed second grippers 320. A second pull rod 330 is inserted through the contact tip removal base 310. A second electric push rod 340 and a second servo motor 360 are fixedly mounted on the bottom of the welding torch / weld material replacement platform 100. The output end of the second electric push rod 340 is fixedly connected to the bottom end of the second pull rod 330. Evenly distributed second levers 350 are hinged to the contact tip removal base 310. The top of the second levers 350 is connected to the adjacent second grippers 320. A second limiting groove 331 is provided on the top of the second pull rod 330. The bottom of the second levers 350 extends to the inner side of the second limiting groove 331. A second torque adjuster 361 is fixedly mounted on the output shaft of the second servo motor 360. Gears are fixedly mounted on the top of the second torque adjuster 361 and on the contact tip removal base 310, and transmission is achieved through gear meshing.

[0047] The second pull rod 330 has a through hole running vertically through it, and the diameter of the through hole is larger than the diameter of the conductive tip to be disassembled. The welding torch welding material replacement platform 100 has two guide tubes 600 and two material drop boxes 700 fixedly installed inside. The top ends of the two guide tubes 600 extend to the bottom ends of the first pull rod 230 and the second pull rod 330, respectively, and the bottom ends of the two guide tubes 600 extend to the top of the two material drop boxes 700, respectively. A pressure sensor 710 is fixedly installed between the bottom of the material drop box 700 and the welding torch welding material replacement platform 100. The pressure sensor 710 is used to monitor the weight fluctuation in the material drop box 700 and upload the monitoring data to the controller 500.

[0048] After the nozzle is removed, the conductive nozzle removal station 300 can remove the conductive nozzle of the welding robot. At the same time, due to the through hole on the second pull rod 330, the removed waste conductive nozzle can fall directly after the second gripper 320 is released, and is guided and collected into the material drop box 700 through the conduit 600, which facilitates the subsequent continuous replacement work. It can serve multiple welding robots with one replacement platform. The first pull rod 230 can also be a hollow structure, with the hollow diameter being larger than the nozzle diameter.

[0049] The pressure sensor 710 can monitor the pressure changes in the material drop box 700 in real time. Each time a discarded conductive nozzle or nozzle falls into the material drop box 700, the weight of the material drop box 700 will change. When the weight change exceeds the threshold, the pressure sensor 710 will detect and count it, and upload the data to the controller 500. The controller 500 has a preset value corresponding to the number of conductive nozzles or nozzles placed on the conductive nozzle installation station 400. When the count value is equal to the preset value, the machine will stop and remind the user to wait for the replacement of conductive nozzles or nozzles. After the replacement is completed, the count will be reset, realizing fully automatic real-time management of spare parts inventory. When a spare part is about to run out, the controller 500 can issue an early warning to the central control system or management personnel, prompting "Spare parts need to be replenished", thus completely avoiding the shutdown of the welding robot due to the exhaustion of spare parts during production. This function is indirectly achieved by monitoring a "discarding action", without the need for a complicated vision or RFID system.

[0050] The first lever 250 and the second lever 350 are both provided with elliptical holes 251 at their tops. The first gripper 220 and the second gripper 320 are both integrally formed with connecting rods 221, which are inserted into the interior of adjacent elliptical holes 251. The elliptical holes 251 can meet the movement trend of the connecting rods 221 and the elliptical holes 251 when the top of the second lever 350 drives the first gripper 220 or the second gripper 320 to slide in a plane.

[0051] The conductive tip installation station 400 includes a conductive tip replacement disk 410 rotatably mounted on the welding torch and welding material replacement platform 100. Evenly distributed conductive tip installation tubes 450 are rotatably mounted on the conductive tip replacement disk 410. A stepper motor 420 and a third servo motor 430 are fixedly mounted on the welding torch and welding material replacement platform 100. The output shaft of the stepper motor 420 is fixedly connected to the conductive tip replacement disk 410. A third torque adjuster 431 is fixedly connected to the output shaft of the third servo motor 430. A connecting shaft 440 is fixedly connected to the output shaft of the third torque adjuster 431. The top of the connecting shaft 440 is inserted into the adjacent conductive tip installation tube 450.

[0052] After the nozzle and conductive tip are disassembled, the welding torch is moved to the mounting position above the conductive tip replacement tray 410. The conductive tip to be replaced is moved to the mounting position by the stepper motor 420. Then, the nozzle is pressed down to make contact with the threaded part at the top of the conductive tip and the pressure on the conductive tip mounting tube 450 is maintained, so that the bottom of the conductive tip mounting tube 450 is connected to the connecting shaft 440 at the top of the third torque adjuster 431. Then, the third servo motor 430 is rotated to drive the conductive tip mounting tube 450 to rotate, thereby installing the new conductive tip onto the welding torch. Finally, the welding torch is moved to the nozzle disassembly and assembly station 200 for installation.

[0053] The conductive tip mounting tube 450 includes a rotating disk 451 rotatably mounted on the conductive tip replacement disk 410. A connecting tube 452 is slidably connected to the rotating disk 451. A first spring 453 is fixedly installed between the top of the rotating disk 451 and the connecting tube 452. The inner diameter shape of the connecting tube 452 matches the shape of the conductive tip to be installed. A hexagonal groove 454 matching the connecting shaft 440 is opened at the bottom of the connecting tube 452.

[0054] A macro sensor 455 is fixedly installed on the connecting pipe 452. The macro sensor 455 is used to monitor the compression height of the first spring 453. The macro sensor 455 is electrically connected to the controller 500. The macro sensor 455 and the controller 500 can be connected wirelessly, such as via Bluetooth.

[0055] The separation structure of the rotating disk 451 and the connecting pipe 452 allows the connecting pipe 452 to rotate when the welding torch is pressed down. The first spring 453 provides compression space and controls the separation of the connecting shaft 440 and the hexagonal groove 454, thereby facilitating the movement of the rotating disk 451 before installation or its removal after installation.

[0056] The macro sensor 455 detects the distance between the upper part of the connecting tube 452 and the rotating disk 451 in real time. The height of the connecting tube 452 when it is unloaded is the initial height. When the conductive nozzle or nozzle spare part is placed on the connecting tube 452, its gravity will initially squeeze the first spring 453, causing the connecting tube 452 to drop a certain height, which is the load height. This modification upgrades the original purely mechanical buffer component, namely the first spring 453, into a reliable "consumable in-situ detection" mechanism. It can confirm the presence of spare parts before installation and works in conjunction with the counting mechanism of the pressure sensor 710. If the controller 500 receives a "disassembly complete" signal, but the corresponding installation station reports a "material shortage" signal, it can immediately determine that it is an abnormal state, stop the operation and alarm, prevent the robot from performing invalid installation actions, and protect the equipment and welding torch.

[0057] This invention uses an automated device to automatically replace the welding gun consumables for robotic welding, replacing the manual replacement mode, reducing labor costs, and using a single power source, which is more convenient to obtain. The first gripper 220 and the second gripper 320 can be adapted to nozzles and conductive tips of different sizes, making it more widely applicable.

[0058] It offers diverse usage methods to meet various needs, including:

[0059] To replace the conductive tip, simply follow the replacement steps outlined above.

[0060] To replace the nozzle, the first pull rod 230 is replaced with a hollow structure that communicates with the second pull rod 330 and has a through hole. The diameter of the hollow structure of the first pull rod 230 is larger than the diameter of the nozzle to be installed, so that the material can be dropped. A nozzle mounting tube similar to the conductive nozzle mounting tube 450 is set on the conductive nozzle replacement plate 410 of the welding torch welding material replacement platform 100.

[0061] Simultaneously replace the nozzle and conductive tip, replacing the conductive tip and nozzle based on the structure of Method Two.

[0062] Please see Figures 1-8 Based on Example 1, the present invention also provides Example 2:

[0063] The clamping surfaces of the first clamping jaw 220 and the second clamping jaw 320 are both provided with mounting grooves 222. The inner wall of the mounting groove 222 is integrally formed with an arc-shaped guide block 223. The mounting groove 222 is provided with a clamping block 224 that is slidably connected to the arc-shaped guide block 223. The first clamping jaw 220 and the second clamping jaw 320 are both threadedly connected with adjusting screws 225. One end of the adjusting screw 225 located inside the mounting groove 222 is connected to one end of a second spring 226. The other end of the second spring 226 is fixedly connected to the clamping block 224.

[0064] Since the structure in contact with the nozzle and the conductive tip is the clamping block 224, during the clamping process, the clamping forces of the clamping block 224, the nozzle, and the conductive tip are mutual. The clamping block 224 guides the mutual forces through the arc-shaped guide block 223. The elastic force of the second spring 226 prevents the arc-shaped guide block 223 from sliding with the clamping block 224. The elastic force is controlled by the adjusting screw 225 until the clamping block 224 is completely fixed. This method can protect the nozzle and the conductive tip by sliding when the clamping block 224 causes the nozzle or conductive tip to deform due to excessive clamping force.

[0065] Secondly, this application installs a first torque adjuster 261, a second torque adjuster 361, and a third torque adjuster 431 on the first servo motor 260, the second servo motor 360, and the third servo motor 430, respectively, to control the output torque of the first servo motor 260, the second servo motor 360, and the third servo motor 430. This prevents the motors from forcibly driving the motors, which could cause slippage between the first gripper 220, the second gripper 320, and the conductive nozzle mounting tube 450 on the nozzle and the conductive nozzle. The first torque adjuster 261, the second torque adjuster 361, and the third torque adjuster 431 are all ball torque limiters. At the same time, the sliding structure of the clamping block 224 and the arc-shaped guide block 223 can cause slippage when the first gripper 220 and the second gripper 320 exert excessive rotational torque on the nozzle and the conductive nozzle, thereby loosening the clamping effect of the first gripper 220 and the second gripper 320. The torque threshold is controlled by adjusting the screw 225, which is convenient to operate and, together with the ball torque limiter, further enhances the protective effect.

[0066] The width of the clamping block 224 gradually decreases in the clockwise direction. The arc-shaped guide block 223 has an arc-shaped groove on the side near the clamping block 224 to limit the second spring 226. The arc-shaped groove can limit the second spring 226 and ensure the stable installation of the second spring 226.

[0067] Please see Figures 1-8 Based on Examples 1 and 2, the present invention also provides Example 3:

[0068] A controller 500 is installed on the welding torch and welding material replacement platform 100. The first electric push rod 240, the first servo motor 260, the second electric push rod 340, the second servo motor 360, the stepper motor 420 and the third servo motor 430 are all electrically connected to the controller 500. The controller 500 is electrically connected to the welding robot.

[0069] The conductive tip installation station 400 also includes a drive sensor 460, which is electrically connected to the stepper motor 420 and the controller 500. The drive sensor 460 is used to monitor the number of rotations of the stepper motor 420 and obtain the rotation angle of the conductive tip replacement disk 410.

[0070] The welding robot and the welding torch and welding material changing platform 100 are operated in coordination by adopting an electronic control automation method, which makes the operation more automated and intelligent.

[0071] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. An automated welding torch consumable replacement device for robotic welding, comprising a welding torch and welding material replacement platform (100), characterized in that: The welding torch and welding material replacement platform (100) is equipped with a nozzle disassembly and assembly station (200), a conductive nozzle disassembly station (300) and a conductive nozzle installation station (400). The nozzle disassembly / assembly station (200) includes a nozzle disassembly / assembly base (210) rotatably mounted on a welding torch / weld material replacement platform (100). The top of the nozzle disassembly / assembly base (210) is slidably connected to evenly distributed first grippers (220). A first pull rod (230) is inserted through the nozzle disassembly / assembly base (210). A first electric push rod (240) and a first servo motor (260) are fixedly mounted on the bottom of the welding torch / weld material replacement platform (100). The output end of the first electric push rod (240) is fixedly connected to the bottom end of the first pull rod (230). The mounting base (210) is hinged with evenly distributed first levers (250), the top of the first levers (250) is connected to the adjacent first gripper (220), the top of the first pull rod (230) is provided with a first limiting groove (231), the bottom of the first levers (250) extends to the inside of the first limiting groove (231), the output shaft of the first servo motor (260) is fixedly mounted with a first torque adjuster (261), the top of the first torque adjuster (261) and the nozzle mounting base (210) are both fixedly mounted with gears and are driven by gear meshing; The conductive tip removal station (300) includes a conductive tip removal base (310) rotatably mounted on the welding torch and welding material replacement platform (100). The top of the conductive tip removal base (310) is slidably connected to evenly distributed second grippers (320). A second pull rod (330) is inserted through the conductive tip removal base (310). A second electric push rod (340) and a second servo motor (360) are fixedly mounted on the bottom of the welding torch and welding material replacement platform (100). The output end of the second electric push rod (340) is fixedly connected to the bottom end of the second pull rod (330). The nozzle removal base (310) is hinged with evenly distributed second levers (350), the top of the second levers (350) is connected to the adjacent second gripper (320), the top of the second pull rod (330) is provided with a second limiting groove (331), the bottom of the second levers (350) extends to the inside of the second limiting groove (331), the output shaft of the second servo motor (360) is fixedly mounted with a second torque adjuster (361), the top of the second torque adjuster (361) and the conductive nozzle removal base (310) are both fixedly mounted with gears and are driven by gear meshing; The conductive tip installation station (400) includes a conductive tip replacement disk (410) rotatably mounted on the welding torch welding material replacement platform (100). The conductive tip replacement disk (410) is rotatably mounted with evenly distributed conductive tip installation tubes (450). The welding torch welding material replacement platform (100) is fixedly mounted with a stepper motor (420) and a third servo motor (430). The output shaft of the stepper motor (420) is fixedly connected to the conductive tip replacement disk (410). The output shaft of the third servo motor (430) is fixedly connected to a third torque adjuster (431). The output shaft of the third torque adjuster (431) is fixedly connected to a connecting shaft (440). The top of the connecting shaft (440) is inserted into the adjacent conductive tip installation tube (450). Both the first pull rod (230) and the second pull rod (330) are provided with through holes that extend vertically, and the diameter of the through holes is larger than the diameter of the nozzle or conductive nozzle to be disassembled; The welding torch and welding material replacement platform (100) has two conduits (600) and two material drop boxes (700) fixedly installed inside. The top ends of the two conduits (600) extend to the bottom ends of the first pull rod (230) and the second pull rod (330) respectively, and the bottom ends of the two conduits (600) extend to the top of the two material drop boxes (700) respectively. The clamping surfaces of the first jaw (220) and the second jaw (320) are provided with mounting grooves (222). The inner wall of the mounting groove (222) is integrally formed with an arc-shaped guide block (223). The mounting groove (222) is provided with a clamping block (224) that is slidably connected to the arc-shaped guide block (223). The first jaw (220) and the second jaw (320) are each threaded with an adjusting screw (225). One end of the adjusting screw (225) located inside the mounting groove (222) is connected to one end of a second spring (226). The other end of the second spring (226) is fixedly connected to the clamping block (224). The width of the clamping block (224) gradually decreases in the clockwise direction, and the arc-shaped guide block (223) has an arc-shaped groove for limiting the second spring (226) on the side near the clamping block (224).

2. The automated welding torch consumable replacement device for robotic welding according to claim 1, characterized in that: The top of the first lever (250) and the second lever (350) are provided with elliptical holes (251), and the first gripper (220) and the second gripper (320) are integrally formed with connecting rods (221), which are inserted into the interior of adjacent elliptical holes (251).

3. The automated welding torch consumable replacement device for robotic welding according to claim 1, characterized in that: The conductive nozzle mounting tube (450) includes a rotating disk (451) rotatably mounted on a conductive nozzle replacement disk (410). A connecting tube (452) is slidably connected to the rotating disk (451). A first spring (453) is fixedly installed between the top of the rotating disk (451) and the connecting tube (452). The inner diameter shape of the connecting tube (452) matches the shape of the conductive nozzle to be installed. A hexagonal groove (454) matching the connecting shaft (440) is opened at the bottom of the connecting tube (452).

4. An automated welding torch consumable replacement device for robotic welding according to claim 1, characterized in that: The welding torch and welding material replacement platform (100) is equipped with a controller (500). The first electric push rod (240), the first servo motor (260), the second electric push rod (340), the second servo motor (360), the stepper motor (420) and the third servo motor (430) are all electrically connected to the controller (500). The controller (500) is electrically connected to the welding robot.

5. An automated welding torch consumable replacement device for robotic welding according to claim 4, characterized in that: The conductive nozzle installation station (400) also includes a drive sensor (460), which is electrically connected to the stepper motor (420) and the controller (500). The drive sensor (460) is used to monitor the number of rotations of the stepper motor (420) and obtain the rotation angle of the conductive nozzle replacement disk (410).

6. An automated welding torch consumable replacement device for robotic welding according to claim 4, characterized in that: A pressure sensor (710) is fixedly installed between the bottom of the material drop box (700) and the welding torch welding material replacement platform (100). The pressure sensor (710) is used to monitor the weight fluctuation in the material drop box (700) and upload the monitoring data to the controller (500).

7. An automated welding torch consumable replacement device for robotic welding according to claim 3, characterized in that: A macro sensor (455) is fixedly installed on the connecting pipe (452). The macro sensor (455) is used to monitor the compression height of the first spring (453). The macro sensor (455) is electrically connected to the controller (500).

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