Automatic welding gun consumable replacement device for robot welding

Abstract

The invention discloses an automatic welding gun consumable replacement device for robot welding. The automatic welding gun consumable replacement device comprises a welding gun welding material replacement platform, and the welding gun welding material replacement platform is provided with a nozzle dismounting and mounting station, a contact tube dismounting station and a contact tube mounting station; the nozzle disassembling and assembling station comprises a nozzle disassembling and assembling base rotationally installed on the welding gun welding material replacing platform, and first clamping jaws which are evenly distributed are slidably connected to the top of the nozzle disassembling and assembling base. According to the device, a device with the higher automation degree is adopted for automatically replacing welding gun consumables for robot welding, a manual replacement mode is replaced, the labor cost is reduced, single electric power energy is adopted, the obtaining mode is more convenient, a first clamping jaw and a second clamping jaw can be matched with nozzles and contact tubes of different sizes correspondingly, and the application range is wider; the nozzle and the contact tube are protected in the disassembly and assembly process, and therefore the replacement effect and the use quality of the nozzle and the contact tube are guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding robots, in particular to an automatic welding gun consumable replacement device for robot welding. BACKGROUND

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

[0003] The replacement of the conductive nozzle and the nozzle is usually carried out by an operator or a maintenance personnel in the robot pause or standby state, and the replacement quality is highly dependent on the skill level and responsibility of the operator.

[0004] The tightening torque and the precision of the TCP check may vary from person to person, resulting in fluctuations in welding quality, and manual operation has the risk of forgetting steps. Some automatic replacement devices usually use electric and pneumatic control, which also requires two power sources to be input, and the on-site power supply and gas supply equipment must be provided, resulting in high failure rate, large size, and the fact that the smooth ordinary clamp cannot clamp the cylindrical shape. Direct clamping of the conductive nozzle or the nozzle can easily cause damage to the conductive nozzle or the nozzle, and the nozzle and the conductive nozzle must be configured and disassembled flat to be able to clamp and disassemble the work. SUMMARY

[0005] In view of the problems in the prior art, the purpose of the present application is to provide an automatic welding gun consumable replacement device for robot welding to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows: An automatic welding gun consumable replacement device for robot welding, comprising a welding gun consumable replacement platform, wherein a nozzle dismounting and mounting station, a conductive nozzle dismounting station and a conductive nozzle mounting station are arranged on the welding gun consumable replacement platform. The nozzle dismounting and mounting station comprises a nozzle dismounting and mounting base rotatably mounted on the welding gun consumable replacement platform, a plurality of first clamping jaws are slidably connected to the top of the nozzle dismounting and mounting base, a first pull rod is inserted into the nozzle dismounting and mounting base, a first electric push rod and a first servo motor are fixedly installed at the bottom of the welding gun consumable replacement platform, the output end of the first electric push rod is fixedly connected to the bottom end of the first pull rod, a plurality of first levers are hingedly connected to the nozzle dismounting and mounting base, the top of each first lever is connected to an adjacent first clamping jaw, the top of the first pull rod is provided with a first limiting groove, the bottom of each first lever extends to the inside of the limiting groove, a first torque adjuster is fixedly installed on the output shaft of the first servo motor, and a gear is fixedly installed on the top of the first torque adjuster and the nozzle dismounting and mounting base and is driven by gear meshing.

[0007] The conductive nozzle dismounting station comprises a conductive nozzle dismounting base rotatably installed on the welding gun welding material replacement platform, the top of the conductive nozzle dismounting base is slidably connected with uniformly distributed second clamping jaws, the conductive nozzle dismounting base is penetrated by a second pull rod, the bottom of the welding gun welding material replacement platform is fixedly installed with a second electric push rod and a second servo motor, the output end of the second electric push rod is fixedly connected with the bottom end of the second pull rod, the conductive nozzle dismounting base is hingedly connected with uniformly distributed second levers, the top of the second lever is connected with the adjacent second clamping jaw, the top of the second pull rod is provided with a second limiting groove, the bottom of the second lever extends to the inside of the limiting groove, the output shaft of the second servo motor is fixedly installed with a second torque adjuster, and the top of the second torque adjuster is fixedly installed with a gear on the conductive nozzle dismounting base and is driven through gear meshing.

[0008] The conductive nozzle mounting station comprises a conductive nozzle replacement disc rotatably installed on the welding gun welding material replacement platform, the conductive nozzle replacement disc is rotatably installed with uniformly distributed conductive nozzle mounting pipes, the welding gun welding material replacement platform is fixedly installed with a stepping motor and a third servo motor, the output shaft of the stepping motor is fixedly connected with the conductive nozzle replacement disc, the output shaft of the third servo motor is fixedly connected with a third torque adjuster, the output shaft of the third torque adjuster is fixedly connected with a connecting shaft, and the top of the connecting shaft is inserted into the adjacent conductive nozzle mounting pipe.

[0009] Further description of the above technical solutions: The top of the first lever and the second lever is provided with an elliptical hole, the first clamping jaw and the second clamping jaw are integrally formed with a connecting rod, and the connecting rod is inserted into the adjacent elliptical hole.

[0010] Further description of the above technical solutions: The second pull rod is provided with a through hole penetrating up and down, and the diameter of the through hole is greater than the diameter of the conductive nozzle to be dismounted.

[0011] Further description of the above technical solutions: The conductive nozzle mounting pipe comprises a rotating disc rotatably installed on the conductive nozzle replacement disc, the rotating disc is slidably connected with a connecting pipe, a first spring is fixedly installed between the top of the rotating disc and the connecting pipe, the inner diameter of the connecting pipe is matched with the shape of the conductive nozzle to be mounted, and the bottom of the connecting pipe is provided with a hexagonal groove matched with the connecting shaft.

[0012] Further description of the above technical solutions: The clamping surface of the first clamping jaw and the second clamping jaw is provided with a mounting groove, the inner wall of the mounting groove is integrally formed with an arc-shaped guide block, the mounting groove is internally provided with a clamping block in sliding connection with the arc-shaped guide block, the first clamping jaw and the second clamping jaw are respectively provided with an adjusting screw in threaded connection therewith, one end of the adjusting screw located in the mounting groove is connected with a second spring, and the other end of the second spring is fixedly connected with the clamping block.

[0013] As a further description of the above technical solution: The clamping block gradually decreases in width in the clockwise direction, and the arc-shaped guide block is provided, on the side close to the clamping block, with an arc-shaped groove for limiting the second spring.

[0014] As a further description of the above technical solution: The welding gun welding material replacement platform is provided with a controller, the first electric push rod, the first servo motor, the second electric push rod, the second servo motor, the stepping motor and the third servo motor are electrically connected with the controller, and the controller is electrically connected with the welding robot.

[0015] As a further description of the above technical solution: The electrically conductive nozzle mounting station further comprises a driving sensor, the driving sensor is electrically connected with the stepping motor and the controller, and the driving sensor is used for monitoring the rotation number of the stepping motor and obtaining the rotation angle of the electrically conductive nozzle replacement disc.

[0016] As a further description of the above technical solution: Two pipes and two blanking boxes are fixedly installed inside the welding gun welding material replacement platform, the top ends of the two pipes extend to the bottom ends of the first pull rod and the second pull rod respectively, the bottom ends of the two pipes extend above the two blanking boxes respectively, a pressure sensor is fixedly installed between the bottom of the blanking box and the welding gun welding material replacement platform, the pressure sensor is used for monitoring the weight fluctuation in the blanking box and uploading the monitoring data to the controller.

[0017] As a further description of the above technical solution: A macro sensor is fixedly installed on the connecting pipe, the macro sensor is used for monitoring the compression height of the first spring, and the macro sensor is electrically connected with the controller.

[0018] Compared with the prior art, the advantages of the present application are: (1) The present application adopts a device with higher automation degree to automatically replace the welding gun consumables of the robot welding, replaces the manual replacement mode, reduces the labor cost, adopts a single power energy source, and is more convenient to obtain, the first clamping jaw and the second clamping jaw can respectively adapt to nozzles and electrically conductive nozzles of different sizes, and the application range is wider.

[0019] (2) The scheme improves the structure of the first clamping jaw and the second clamping jaw, and cooperates with the ball torque limiter to protect the nozzle and the conductive nozzle during disassembly and assembly, so as to ensure the replacement effect and use quality of the nozzle and the conductive nozzle. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic view of the welding gun welding material replacement platform of the application; Figure 2 It is a structural schematic view of the nozzle disassembly and assembly station of the application; Figure 3 It is a structural schematic view of the installation of the first clamping jaw of the application; Figure 4 It is a structural schematic view of the conductive nozzle installation station of the application; Figure 5 It is a structural schematic view of the front view of the conductive nozzle disassembly station of the application; Figure 6 It is a structural schematic view of the conductive nozzle installation pipe of the application; Figure 7 It is a structural schematic view of the first clamping jaw of the application; Figure 8 It is a schematic view of the opening position of the arc-shaped groove in the application.

[0021] Explanation of reference numerals in the drawing: 100, welding gun welding material replacement platform; 200, nozzle disassembly and assembly station; 210, nozzle disassembly and assembly base; 220, first clamping jaw; 221, connecting rod; 222, installation groove; 223, arc-shaped guide block; 224, clamping block; 225, adjusting screw; 226, second spring; 230, first pull rod; 231, first limiting groove; 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 clamping jaw; 330, second pull rod; 331, second limiting groove; 332, through hole; 340, second electric push rod; 350, second lever; 360, second servo motor; 361, second torque adjuster; 400, conductive nozzle installation station; 410, conductive nozzle replacement disc; 420, stepping motor; 430, third servo motor; 431, third torque adjuster; 440, connecting shaft; 450, conductive nozzle installation pipe; 451, rotating disc; 452, connecting pipe; 453, first spring; 454, hexagonal groove; 455, macro sensor; 460, driving sensor; 500, controller; 600, guide pipe; 700, blanking box; 710, pressure sensor. DETAILED DESCRIPTION

[0022] 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.

[0023] Please see Figures 1-8 The present invention provides Embodiment 1: 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.

[0024] 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.

[0025] The conductive nozzle dismounting station 300 comprises a conductive nozzle dismounting base 310 rotatably installed on the welding gun welding material replacement platform 100, the top of the conductive nozzle dismounting base 310 is slidably connected with uniformly distributed second clamping jaws 320, the conductive nozzle dismounting base 310 is penetrated by a second pull rod 330, the bottom of the welding gun welding material replacement platform 100 is fixedly installed with a second electric push rod 340 and a second servo motor 360, the output end of the second electric push rod 340 is fixedly connected with the bottom end of the second pull rod 330, the conductive nozzle dismounting base 310 is hingedly connected with uniformly distributed second levers 350, the top of the second lever 350 is connected with the adjacent second clamping jaw 320, the top of the second pull rod 330 is provided with a second limiting groove 331, the bottom of the second lever 350 extends to the inside of the second limiting groove 331, the output shaft of the second servo motor 360 is fixedly installed with a second torque adjuster 361, and the top of the second torque adjuster 361 is fixedly installed with a gear on the conductive nozzle dismounting base 310 and is driven by gear meshing.

[0026] The second pull rod 330 is provided with a through hole 332 penetrating upward and downward, and the diameter of the through hole 332 is greater than that of the conductive nozzle to be dismounted; the welding gun welding material replacement platform 100 is internally fixedly installed with two conduits 600 and two blanking boxes 700, the top ends of the two conduits 600 respectively extend to the bottom ends of the first pull rod 230 and the second pull rod 330, the bottom ends of the two conduits 600 respectively extend above the two blanking boxes 700, and a pressure sensor 710 is fixedly installed between the bottom of the blanking box 700 and the welding gun welding material replacement platform 100, the pressure sensor 710 is used for monitoring the weight fluctuation in the blanking box 700 and uploading the monitoring data to the controller 500.

[0027] After the nozzle is dismounted, the conductive nozzle dismounting station 300 can also dismount the conductive nozzle of the welding robot, and due to the through hole 332 on the second pull rod 330, after the second clamping jaw 320 is loosened, the dismounted waste conductive nozzle can directly fall off and be guided to the blanking box 700 through the conduit 600, thereby facilitating subsequent continuous dismounting and replacement work, and the effect of one replacement platform serving multiple welding robots can be achieved, and the first pull rod 230 can also be a hollow structure, and the hollow diameter is greater than the diameter of the nozzle.

[0028] The pressure sensor 710 can monitor the pressure change in the material falling box 700 in real time. Each time the waste conductive nozzle or nozzle falls into the material falling box 700, the weight of the material falling box 700 changes. When the weight value changes by more than a threshold value, the pressure sensor 710 detects and counts, and uploads the data to the controller 500. The controller 500 presets a value corresponding to the number of conductive nozzles or nozzles placed on the conductive nozzle mounting station 400. When the count value is equal to the preset value, the machine stops and waits for the conductive nozzle or nozzle to be replenished. When the replenishment is completed, the count is reset, realizing automatic real-time management of spare parts inventory. When a certain spare part is about to run out, the controller 500 can send an early warning to the central control system or the manager, prompting “spare parts need to be replenished”, so as to completely avoid the shutdown of the welding robot due to the depletion of spare parts during production. This function is indirectly realized by monitoring a “waste action” without the need for complex vision or RFID systems.

[0029] The first lever 250 and the top of the second lever 350 are both provided with an oval hole 251. The first clamping jaw 220 and the second clamping jaw 320 are both integrally formed with a connecting rod 221. The connecting rod 221 is inserted into the adjacent oval hole 251. The oval hole 251 can satisfy the activity trend of the connecting rod 221 and the oval hole 251 when the second lever 350 drives the first clamping jaw 220 or the second clamping jaw 320 to slide horizontally.

[0030] The conductive nozzle mounting station 400 comprises a conductive nozzle replacement disc 410 rotatably mounted on the welding gun welding material replacement platform 100. The conductive nozzle replacement disc 410 is rotatably mounted with uniformly distributed conductive nozzle mounting pipes 450. The welding gun welding material replacement platform 100 is fixedly mounted with a stepping motor 420 and a third servo motor 430. The output shaft of the stepping motor 420 is fixedly connected with the conductive nozzle replacement disc 410. The output shaft of the third servo motor 430 is fixedly connected with a third torque adjuster 431. The output shaft of the third torque adjuster 431 is fixedly connected with a connecting shaft 440. The top of the connecting shaft 440 is inserted into the adjacent conductive nozzle mounting pipe 450.

[0031] After the nozzle and the conductive nozzle are disassembled, the welding gun is moved to the installation position above the conductive nozzle replacement disc 410. The conductive nozzle required to be replaced by the conductive nozzle mounting pipe 450 is moved to the installation position by the stepping motor 420. Then the nozzle is pressed downward to be in contact with the threaded part at the top of the conductive nozzle, and the pressure on the conductive nozzle mounting pipe 450 is maintained. The connecting shaft 440 at the top of the third torque adjuster 431 below the conductive nozzle mounting pipe 450 is in contact. Then the third servo motor 430 is rotated to drive the conductive nozzle mounting pipe 450 to rotate, so as to install the new conductive nozzle on the welding gun. Then the welding gun is moved to the nozzle dismounting station 200 for installation work.

[0032] The conductive nozzle mounting pipe 450 comprises a rotating disc 451 rotatably mounted on the conductive nozzle replacement disc 410, a connecting pipe 452 slidably connected to the rotating disc 451, and a first spring 453 fixedly mounted between the top of the rotating disc 451 and the connecting pipe 452.

[0033] The connecting pipe 452 is fixedly provided with a macro sensor 455 for monitoring the compression height of the first spring 453, and the macro sensor 455 is electrically connected to the controller 500.

[0034] The separation structure of the rotating disc 451 and the connecting pipe 452 can facilitate the rotation of the connecting pipe 452 when the welding gun is pressed down, and the first spring 453 provides a compression space to control the separation of the connecting shaft 440 and the hexagonal groove 454, thereby facilitating the movement of the rotating disc 451 before installation or after installation.

[0035] The macro sensor 455 detects the distance between the upper part of the connecting pipe 452 and the rotating disc 451 in real time, wherein the height of the connecting pipe 452 without load is the initial height, and when the conductive nozzle or nozzle spare part is placed on the connecting pipe 452, the gravity thereof will preliminarily compress the first spring 453 to make the connecting pipe 452 descend by a certain height, and this height is the load height. This modification upgrades the original purely mechanical buffer component, i.e. the first spring 453, to a reliable "consumable in-place detection" mechanism, which can confirm whether the spare part exists before installation, and cooperates with the pressure sensor 710 counting mechanism. If the controller 500 receives a "disassembly complete" signal but the corresponding installation station feedbacks a "lack of material" signal, it can immediately judge that it is an abnormal state, stop operation and alarm, prevent the robot from performing invalid installation actions, and protect the equipment and welding gun.

[0036] The present application adopts an automatic device to automatically replace the welding gun consumables of the robot welding, replaces the manual replacement mode, reduces the labor cost, adopts a single power energy source, and is more convenient to obtain. The first clamping jaw 220 and the second clamping jaw 320 can respectively adapt to nozzles and conductive nozzles of different sizes, and have a wider application range.

[0037] The use mode can be various to meet the use requirements, and the use mode includes: The conductive nozzle is replaced, and the replacement steps according to the above scheme can be performed; The first pull rod 230 is replaced by a hollow structure with a through hole 332 communicated with the second pull rod 330, the hollow structure of the first pull rod 230 has a diameter greater than the diameter of the to-be-installed nozzle, and the hollow structure can complete blanking, and a nozzle mounting pipe similar to the conductive nozzle mounting pipe 450 is arranged on the conductive nozzle replacement disc 410 of the welding material replacement platform 100. The nozzle and the conductive nozzle are replaced synchronously, and the conductive nozzle and the nozzle are replaced on the basis of the structure of the second use mode. Please refer to Figures 1-8 The application also provides the embodiment 2 on the basis of the embodiment 1. The clamping surfaces of the first clamping jaw 220 and the second clamping jaw 320 are provided with mounting grooves 222, the inner walls of the mounting grooves 222 are integrally formed with arc-shaped guide blocks 223, the mounting grooves 222 are provided with clamping blocks 224 in sliding connection with the arc-shaped guide blocks 223, the first clamping jaw 220 and the second clamping jaw 320 are provided with adjusting screws 225 in threaded connection therewith, one end of the adjusting screw 225 located in the mounting groove 222 is connected with one end of a second spring 226, and the other end of the second spring 226 is fixedly connected with the clamping block 224.

[0038] Since the structure in contact with the nozzle and the conductive nozzle is the clamping block 224, the clamping force of the clamping block 224 on the nozzle and the conductive nozzle is mutual during clamping, the clamping block 224 guides the mutual force through the arc-shaped guide block 223, the sliding action of the arc-shaped guide block 223 and the clamping block 224 is prevented by the elastic force of the second spring 226, and the elastic force is controlled by the adjusting screw 225 until the clamping block 224 is completely limited, so that the nozzle or the conductive nozzle is deformed when the clamping force is too large, and the nozzle and the conductive nozzle are protected by sliding.

[0039] Secondly, the first torque adjuster 261, the second torque adjuster 361 and the third torque adjuster 431 are respectively installed on the first servo motor 260, the second servo motor 360 and the third servo motor 430, so that the output torque of the first servo motor 260, the second servo motor 360 and the third servo motor 430 is controlled, the first clamping jaw 220, the second clamping jaw 320 and the conductive nozzle mounting pipe 450 are prevented from slipping on the nozzle and the conductive nozzle due to forced driving of the motor, the first torque adjuster 261, the second torque adjuster 361 and the third torque adjuster 431 are all ball torque limiters, and the sliding structure of the clamping block 224 and the arc-shaped guide block 223 can slide when the rotating torque of the first clamping jaw 220 and the second clamping jaw 320 on the nozzle and the conductive nozzle is too large, so that the clamping effect of the first clamping jaw 220 and the second clamping jaw 320 is released, the torque threshold is controlled by the adjusting screw 225, the operation is convenient, and the ball torque limiter further plays a protection effect.

[0040] The clamping block 224 gradually decreases in width in a clockwise direction, and an arc-shaped slot for limiting the second spring 226 is arranged on one side of the arc-shaped guide block 223 close to the clamping block 224; the arc-shaped slot can limit the second spring 226, thereby ensuring stable installation of the second spring 226.

[0041] Please refer to Figures 1-8 The application further provides Example 3 based on Example 1 and Example 2. The welding gun welding material replacement platform 100 is provided 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 stepping motor 420 and the third servo motor 430 are electrically connected with the controller 500, and the controller 500 is electrically connected with the welding robot; The electrically conductive nozzle mounting station 400 further comprises a driving sensor 460, which is electrically connected with the stepping motor 420 and the controller 500, and is used for monitoring the rotation number of the stepping motor 420 to obtain the rotation angle of the electrically conductive nozzle replacement disc 410.

[0042] The welding robot and the welding gun welding material replacement platform 100 are cooperatively operated in an electrically controlled automatic mode, and the welding robot and the welding gun welding material replacement platform 100 are more automatic and intelligent.

[0043] The above description is only the preferred embodiment of the application; however, the protection scope of the application is not limited to this. Any person skilled in the art can make equivalent replacements or changes to the technical scheme of the application and the improved concept thereof within the technical range disclosed by the application, which should be covered in the protection scope of the application.

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).

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 second pull rod (330) has a through hole (332) that runs vertically through it. The diameter of the through hole (332) is larger than the diameter of the conductive nozzle to be disassembled.

4. An 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).

5. An automated welding torch consumable replacement device for robotic welding according to claim 1, characterized in that: The clamping surfaces of the first clamp (220) and the second clamp (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 clamp (220) and the second clamp (320) are both 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).

6. An automated welding torch consumable replacement device for robotic welding according to claim 5, characterized in that: 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).

7. 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.

8. An automated welding torch consumable replacement device for robotic welding according to claim 7, 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).

9. An automated welding torch consumable replacement device for robotic welding according to claim 7, characterized in that: The welding torch and welding material replacement platform (100) is internally fixedly equipped with two conduits (600) and two material drop boxes (700). 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). A pressure sensor (710) is fixedly installed between the bottom of the material drop box (700) and the welding torch and 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).

10. An automated welding torch consumable replacement device for robotic welding according to claim 4, 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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