Novel contact tube replacing device

Abstract

The utility model discloses a novel contact tube replacing device which comprises a stand column, a box body is installed on the stand column, the box body comprises a lower box body and an upper box body fixedly connected to the top of the lower box body, an installation groove is formed in the top of the upper box body, and the upper box body is internally provided with a wire shearing device installed in the installation groove, comprising a blade box, an upper blade is fixedly arranged at the top of the blade box, a blade plate is installed on the blade box, the blade plate is connected to one side of the upper blade in a sliding mode, a lower blade is fixedly arranged on the blade plate, and the lower blade and the upper blade are matched with each other in a cutting mode; gear transmission is designed to drive the nozzle disassembling and assembling mechanism to disassemble the nozzle, and disassembling between the mechanical arm and the nozzle is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of conductive nozzle replacement, and in particular relates to a novel conductive nozzle replacement device. Background Art

[0002] In robot-controlled welding operations, the nozzle of the conductive nozzle is a consumable part, most of which have a service life of four hours and are replaced frequently. Currently, most of the replacements are completed by manual disassembly and assembly. Since the conductive nozzle has a high temperature during operation, it needs to be stopped and cooled before it can be replaced, which has low work efficiency and takes up too much manpower and production operation time. Utility Model Content

[0003] In order to solve the above problems existing in the prior art, the utility model aims to provide a novel conductive nozzle replacement device.

[0004] The technical solution adopted by the utility model is: comprising a column, a box body is installed on the column, the box body comprises a lower box body and an upper box body fixedly connected to the top of the lower box body, a mounting groove is opened on the top of the upper box body, and the upper box body is installed with:

[0005] A wire cutting device is installed in the installation groove, comprising a blade box, an upper blade is fixedly provided on the top of the blade box, a blade plate is installed on the blade box, the blade plate is slidably connected to one side of the upper blade, a lower blade is fixedly provided on the blade plate, and the lower blade and the upper blade cooperate with each other in cutting;

[0006] The nozzle disassembly mechanism is installed in the box, and comprises a nozzle sleeve, wherein a clamping claw groove is provided in the nozzle sleeve, a nozzle clamping claw is movably connected in the clamping claw groove, and a nozzle disassembly gear is provided on the nozzle sleeve, and the nozzle disassembly gear is spline-connected with the nozzle sleeve;

[0007] A conductive nozzle disassembly mechanism is installed on one side of the nozzle disassembly mechanism, comprising a conductive nozzle disassembly inner cylinder, a conductive nozzle sliding cavity is formed in the conductive nozzle disassembly inner cylinder, a clamping nozzle for limiting the disassembly of the conductive nozzle is provided on the top of the conductive nozzle disassembly inner cylinder, and the clamping nozzle is installed and connected in the conductive nozzle disassembly inner cylinder through a torsion spring;

[0008] There are multiple conductive nozzle installation mechanisms, and the multiple conductive nozzle installation mechanisms are distributed around the conductive nozzle removal mechanism, and a conductive nozzle is stored on the top of each conductive nozzle installation mechanism.

[0009] As a preferred embodiment of the utility model, a driving motor is fixedly provided in the lower box body, and a driving gear is provided at the output end of the driving motor, and the driving gear is drivingly connected to the output end of the driving motor; a sliding groove is provided on the circumferential surface of the nozzle sleeve, and a sliding block is slidingly provided in the sliding groove, one end of the sliding block is fixedly connected to the nozzle disassembly and assembly gear, and fixed blocks are provided at both ends of the nozzle disassembly and assembly gear, one end of the fixed block abuts against the nozzle disassembly and assembly gear, and the other end is rotatably connected to the box body through a bearing, a nozzle disassembly and assembly spring is provided between the top of the nozzle sleeve and the fixed block close to one end of the clamping claw groove, and its two ends are respectively abutted against the top of the nozzle sleeve and the fixed block; a telescope is provided at the bottom of the nozzle sleeve, and the fixed end of the telescope is fixedly connected to the top of the lower box body, and the output end thereof is fixedly connected to the nozzle sleeve.

[0010] As a preferred embodiment of the utility model, at least two clamping grooves are provided on the inner wall of the nozzle sleeve, the clamping groove passes through the nozzle sleeve, each clamping groove is connected to the nozzle clamp by a pin, and both ends of the nozzle clamp are bent.

[0011] As a preferred embodiment of the utility model, a conductive nozzle disassembly outer cylinder is sleeved on the conductive nozzle disassembly inner cylinder, the conductive nozzle disassembly outer cylinder is fixedly connected to the upper box body, a spacer ring is fixedly provided on the conductive nozzle disassembly outer cylinder, the conductive nozzle disassembly outer cylinder is installed and connected to the box body through the spacer ring provided thereon, a conductive nozzle disassembly spring is provided between the top of the conductive nozzle disassembly inner cylinder and the spacer ring on the conductive nozzle disassembly outer cylinder, one end of the conductive nozzle disassembly spring abuts against the top of the conductive nozzle disassembly inner cylinder, and the other end abuts against the spacer ring fixedly provided on the conductive nozzle disassembly outer cylinder, a conductive nozzle disassembly gear is provided on the side of the spacer ring fixed on the conductive nozzle disassembly inner cylinder away from the conductive nozzle disassembly spring, and the conductive nozzle disassembly gear is fixedly connected to the conductive nozzle disassembly outer cylinder.

[0012] As a preferred embodiment of the utility model, a mounting sleeve is provided at the bottom of the conductive nozzle disassembly outer cylinder, the mounting sleeve is sleeved on the conductive nozzle disassembly inner cylinder and fixedly connected to the box body, a plurality of limiting columns are installed on the mounting circumference of the conductive nozzle disassembly inner cylinder, a limiting groove is formed on the bottom circumference of the conductive nozzle disassembly inner cylinder, one end of the limiting column abuts against the limiting groove; a detection sensor is installed at one end of the conductive nozzle disassembly inner cylinder close to the limiting groove, a guide groove is provided on one side of the detection sensor, the guide groove is fixedly connected to the lower box body, and the guide groove is communicated with the conductive nozzle sliding cavity.

[0013] As a preferred embodiment of the utility model, a conductive nozzle installation auxiliary mechanism is provided on one side of the plurality of conductive nozzle installation mechanisms, the conductive nozzle installation mechanism and the conductive nozzle installation auxiliary mechanism include a conductive nozzle installation cylinder and a conductive nozzle support column, the conductive nozzle support column is installed and connected to the top of the conductive nozzle installation cylinder, the conductive nozzle installation cylinder is provided with a conductive nozzle installation gear, the conductive nozzle installation gear is spline-connected to the conductive nozzle installation cylinder, the conductive nozzle installation gears on the plurality of conductive nozzle installation mechanisms are all synchronously meshed with the conductive nozzle disassembly gear, and one of the conductive nozzle installation gears is meshed with the drive gear for transmission, and the conductive nozzle installation gear on the conductive nozzle installation auxiliary mechanism is meshed with another of the conductive nozzle installation gears.

[0014] As a preferred embodiment of the utility model, a welding wire collecting groove is provided between the upper blade and the lower blade, a waist-shaped groove is penetrated through the blade plate, a wire cutting eccentric knife shaft is provided in the waist-shaped groove, the wire cutting eccentric knife shaft is adapted to the waist-shaped groove, a wire cutting shaft is provided on one side of the wire cutting eccentric knife shaft, the wire cutting shaft is rotatably connected to the box body through a spacer ring, the wire cutting shaft is fixedly connected to the wire cutting eccentric knife shaft, a wire cutting gear is provided on the circumferential surface of the wire cutting shaft, the wire cutting gear is fixedly connected to the wire cutting shaft, and the wire cutting gear is meshed with the conductive nozzle disassembly gear closest to the conductive nozzle disassembly gear for transmission.

[0015] As a preferred embodiment of the utility model, it also includes a conductive nozzle mouth detection mechanism, which includes a tentacle sensor, and the tentacle sensor is installed and connected to the box body. The conductive nozzle mouth detection mechanism is installed on one side of the nozzle disassembly and assembly mechanism, and is used to detect whether the conductive nozzle mouth is installed.

[0016] The beneficial effects of the utility model are:

[0017] 1. The utility model is a novel conductive nozzle replacement device. The nozzle is disassembled by designing a gear transmission to drive the nozzle disassembly and assembly mechanism, so as to realize the disassembly between the robot arm and the nozzle. After the nozzle is disassembled, the conductive nozzle mouth and the tail are disassembled by rotating the conductive nozzle disassembly mechanism, the discarded conductive nozzle mouth is removed, and a new conductive nozzle mouth is installed on the conductive nozzle tail by the conductive nozzle installation auxiliary mechanism to realize the replacement of the conductive nozzle. The nozzle is installed by the nozzle disassembly and assembly mechanism, so as to realize the replacement of the conductive nozzle on the welding gun. Through the close cooperation between the mechanisms, the fully automatic replacement of the conductive nozzle is realized, thereby improving the production efficiency.

[0018] 2. By setting up multiple conductive nozzle installation mechanisms and one conductive nozzle installation auxiliary mechanism, the conductive nozzle installation mechanism and the conductive nozzle installation auxiliary mechanism have opposite rotation directions. By using the conductive nozzle installation auxiliary mechanism as the last installation of the conductive nozzles in the same batch, it is realized that when installing the conductive nozzle on the conductive nozzle installation auxiliary mechanism, it is necessary to change the rotation direction of the gear set and the drive motor, thereby reminding the staff that the conductive nozzles in the same batch have all been used and the conductive nozzles need to be loaded in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the box body of the utility model;

[0022] Figure 3 It is a partial perspective structural schematic diagram of the utility model;

[0023] Figure 4 This utility model Figure 2 A schematic diagram of the enlarged structure at point A;

[0024] Figure 5 This utility model Figure 3 A schematic diagram of the enlarged structure at B;

[0025] Figure 6 It is a structural schematic diagram of the wire cutting mechanism of the utility model;

[0026] Figure 7 It is a schematic diagram of the exploded structure of the wire cutting mechanism of the utility model;

[0027] Figure 8 It is a partial structural schematic diagram of the wire cutting mechanism of the utility model;

[0028] Fig. 9 It is a structural schematic diagram of the nozzle disassembly and assembly mechanism of the utility model;

[0029] Fig.10 It is a schematic diagram of the exploded structure of the nozzle disassembly and assembly mechanism of the utility model;

[0030] Fig.11 It is a partial structural schematic diagram of the nozzle disassembly and assembly mechanism of the utility model;

[0031] Fig.12 This utility model Fig. 9 A schematic cross-sectional structure diagram of;

[0032] Fig.13It is a structural schematic diagram of the conductive nozzle disassembly mechanism of the utility model;

[0033] Fig.14 It is a partial structural schematic diagram of the conductive nozzle disassembly mechanism of the utility model;

[0034] Fig.15 It is a partial structural schematic diagram of the conductive nozzle disassembly mechanism of the utility model;

[0035] Fig.16 This utility model Fig.13 A schematic cross-sectional structure diagram of;

[0036] Fig.17 It is a structural schematic diagram of the conductive nozzle installation mechanism of the utility model;

[0037] Fig.18 This utility model Fig.17 AA direction cross-sectional structural schematic diagram;

[0038] Fig.19 It is a schematic diagram of the transmission principle structure between each mechanism gear of the utility model.

[0039] In the figure: 1, column; 2, box; 20, upper box; 21, lower box; 22, wire cutting mechanism; 23, nozzle disassembly mechanism; 24, conductive nozzle installation mechanism; 25, conductive nozzle disassembly mechanism; 26, conductive nozzle nozzle detection mechanism; 27, conductive nozzle installation auxiliary mechanism; 28, spacer ring; 201, installation groove; 202, welding wire collecting groove; 211, driving motor; 212, driving gear; 213, guide groove; 221, blade box; 222, blade plate; 223, waist groove; 224, upper blade; 225, lower blade; 226, wire cutting shaft; 227, wire cutting gear; 228, wire cutting eccentric blade shaft; 230, nozzle sleeve; 23 1. Clamping jaw groove; 232. Nozzle clamping jaw; 233. Telescopic device; 234. Nozzle disassembly spring; 235. Nozzle disassembly gear; 236. Immovable block; 237. Sliding groove; 238. Sliding block; 250. Conductive nozzle disassembly inner cylinder; 251. Conductive nozzle disassembly outer cylinder; 252. Conductive nozzle sliding cavity; 253. Torsion spring; 254. Clamping nozzle; 256. Conductive nozzle disassembly spring; 257. Conductive nozzle disassembly gear; 258. Mounting sleeve; 2501. Limiting column; 2502. Limiting groove; 2503. Detection sensor; 241. Conductive nozzle mounting cylinder; 242. Conductive nozzle support column; 243. Conductive nozzle mounting gear; 261. Tentacle sensor. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0042] Combine the following Figure 1-19 The specific implementation of the utility model is described. A novel contact nozzle replacement device includes a column 1, a box 2 is installed on the column 1, the column 1 and the box 2 serve as the installation support platform of the device, the box 2 includes a lower box 21 and an upper box 20 fixedly connected to the top of the lower box 21, the upper box 20 is provided with a mounting groove 201, and the upper box 20 is installed with:

[0043] The wire cutting device, when the welding gun is welding, there are welding spots and welding slag on the welding wire, and it is difficult to disassemble the conductive nozzle mouth and tail without wire cutting of the welding machine. The top of the upper box body 20 is provided with a mounting groove 201, and the wire cutting mechanism 22 is installed in the mounting groove 201. The wire cutting mechanism 22 comprises a blade box 221, and an upper blade 224 is fixedly provided on the top of the blade box 221. A blade plate 222 is installed on the blade box 221, and the blade plate 222 is slidably connected to one side of the upper blade 224. A lower blade 225 is fixedly provided on the blade plate 222, and the lower blade 225 and the upper blade 224 cut and cooperate with each other. A welding wire collecting groove 202 is provided between the upper blade 224 and the lower blade 225, and the lower blade 225 is moved to the side of the upper blade 224 by the lower blade 225 to cut between the upper blade 224 and the lower blade 225, so as to realize the wire cutting of the welding wire, and the waste welding wire after cutting falls into the welding wire collecting groove 202 for collection.

[0044] The nozzle disassembly mechanism 23 is installed in the box body 2, and includes a nozzle sleeve 230. A clamping claw groove 231 is provided in the nozzle sleeve 230. A nozzle clamping claw 232 is movably connected in the clamping claw groove 231. The nozzle sleeve 230 can limit the nozzle clamped by the mechanical arm through the nozzle clamping claw 232, so that the rotation of the nozzle in the nozzle sleeve 230 is limited by the nozzle clamping claw 232. The nozzle sleeve 230 is disassembled by rotating the nozzle sleeve 230. A nozzle disassembly gear 235 is provided on the nozzle sleeve 230. The nozzle disassembly gear 235 is spline-connected with the nozzle sleeve 230. The nozzle disassembly gear 235 is used to drive the rotation of the nozzle sleeve 230. While rotating, the nozzle sleeve 230 can be moved up and down to adapt to the up and down movement of the nozzle thread when it is installed or disassembled.

[0045] The conductive nozzle disassembly mechanism 25 is installed on one side of the nozzle disassembly mechanism 23, and includes a conductive nozzle disassembly inner cylinder 250. A conductive nozzle sliding cavity 252 is formed in the conductive nozzle disassembly inner cylinder 250. A clamping nozzle 254 for limiting the disassembly of the conductive nozzle is provided on the top of the conductive nozzle disassembly inner cylinder 250. The clamping nozzle 254 is installed and connected in the conductive nozzle disassembly inner cylinder 250 through a torsion spring 253. The conductive nozzle includes a nozzle and a tail. The nozzle is the main working part of the conductive nozzle, and the tail is a fixed part. The tail can be repeatedly moved. In use, the conductive nozzle disassembly mechanism 25 realizes the mutual disassembly of the nozzle and the tail. After the disassembly, the nozzle of the conductive nozzle slides to the outside of the device through the conductive nozzle sliding cavity 252. When the nozzle is disassembled, the clamping nozzle 254 limits the nozzle to prevent the nozzle of the conductive nozzle from rotating in the conductive nozzle disassembly inner cylinder 250. The mechanical arm keeps the conductive nozzles stationary. By rotating the conductive nozzle disassembly inner cylinder 250, the nozzle and the tail of the conductive nozzle are threadedly matched with each other, and finally the nozzle and the tail of the conductive nozzle are disassembled;

[0046] There are multiple conductive nozzle mounting mechanisms 24, and the multiple conductive nozzle mounting mechanisms 24 are distributed around the conductive nozzle removal mechanism 25. A conductive nozzle is stored on the top of each conductive nozzle mounting mechanism 24. After the tail of the previous conductive nozzle is removed, it is moved to the conductive nozzle mounting mechanism 24. Unused conductive nozzle mouths are unevenly placed on each conductive nozzle mounting mechanism 24. By contacting the mouth and tail of the conductive nozzle and controlling the rotation of the conductive nozzle mounting mechanism 24, the new nozzle is installed with the tail, thereby realizing the replacement of the conductive nozzle.

[0047] Please refer to Figure 13-14As shown, a driving motor 211 is fixedly arranged in the lower box 21, and the driving motor 211 drives each mechanism to rotate. A driving gear 212 is arranged at the output end of the driving motor 211, and the driving gear 212 is drivingly connected with the output end of the driving motor 211; a sliding groove 237 is opened on the circumference of the nozzle sleeve 230, and a sliding block 238 is slidingly arranged in the sliding groove 237, and one end of the sliding block 238 is fixedly connected with the nozzle disassembly gear 235, and fixed blocks 236 are arranged at both ends of the nozzle disassembly gear 235. The fixed blocks 236 at the upper and lower ends of the disassembly gear 235 are respectively installed and connected with different sandwich plates inside the box body 2 to limit the upper and lower positions of the nozzle disassembly gear 235. At the same time, the fixed block 236 can rotate with the box body 2 and is rotatably connected with the box body 2 through a bearing, so that the fixed block 236 and the nozzle disassembly gear 235 can rotate synchronously in the box body 2. A sliding groove 237 is provided on the nozzle sleeve 230, and a sliding block 238 is slidably connected in the sliding groove 237. One end of the sliding block 238 is fixedly connected to the gear to realize the nozzle sleeve 230 The sliding groove 237 and the sliding block 238 can be used to move up and down in the box body 2, that is, the spline connection between the gear and the nozzle sleeve 230 is realized, and one end of the fixed block 236 is in contact with the nozzle disassembly gear 235, and the other end is rotatably connected with the box body 2 through a bearing. A nozzle disassembly spring 234 is provided between the top of the nozzle sleeve 230 and the fixed block 236 near one end of the clamping claw groove 231, and its two ends are respectively in contact with the top of the nozzle sleeve 230 and the fixed block 236; when installing and disassembling the nozzle, the nozzle and the robot arm A threaded connection is performed, and a nozzle disassembly spring 234 is provided to realize the reset of the nozzle sleeve 230 after being compressed downward, and at the same time, an up and down movement stroke is provided for the nozzle sleeve 230 to meet the up and down movement formed by the threaded cooperation during the nozzle or installation and disassembly. A telescope 233 is provided at the bottom of the nozzle sleeve 230, and the fixed end of the telescope 233 is fixedly connected to the top of the lower box 21, and the output end thereof is fixedly connected to the nozzle sleeve 230. The telescope 233 can realize the installation height of the nozzle sleeve 230 in the box 2 to adapt to the use requirements of different nozzles.

[0048] Please refer to Fig.13- As shown in Figure 16, at least two clamping grooves 231 are opened on the inner wall of the nozzle sleeve 230, and the clamping groove 231 penetrates the nozzle sleeve 230. Each of the clamping grooves 231 is connected to the nozzle clamping claw 232 through a pin. The middle part of the nozzle clamping claw 232 is connected to the clamping claw groove 231 through a pin. The nozzle clamping claw 232 can swing along the pin. The two ends of the nozzle clamping claw 232 are bent toward the inside of the nozzle sleeve 230. When the nozzle is inserted into the nozzle sleeve 230 by the robot arm, 0, the bottom of the nozzle first contacts the bottom of the clamping jaw 231, and due to the curved shape of the bottom of the nozzle clamping jaw 232, the top of the nozzle clamping jaw 232 clamps the nozzle under the action of the gradual downward movement of the nozzle, and multiple nozzle clamping jaws 232 clamp the nozzle. Under the action of the nozzle clamping jaws 232 and the downward pressure of the robot arm, the position of the nozzle in the nozzle sleeve 230 is limited, and finally, under the rotation of the nozzle sleeve 230, the nozzle and the robot arm are threadedly matched to disassemble or install the nozzle.

[0049] Please refer to Figure 13-16 As shown, a conductive nozzle disassembly outer cylinder 251 is sleeved on the conductive nozzle disassembly inner cylinder 250, and the inner cylinder can slide a certain stroke relative to the outer cylinder, and the sliding of the inner cylinder and the inner cylinder is limited by rotation, that is, the inner cylinder and the outer cylinder can only slide relative to each other up and down, and cannot rotate. The conductive nozzle disassembly outer cylinder 251 is fixedly connected to the upper box body 20, and a spacer ring 28 is fixedly provided on the conductive nozzle disassembly outer cylinder 251. The conductive nozzle disassembly outer cylinder 251 is installed and connected to the box body 2 through the spacer ring 28 provided thereon, wherein the spacer ring 28 is rotatably connected to the box body 2 through a bearing, and the outer cylinder can rotate in the box body 2, and a conductive nozzle disassembly spring 256 is provided between the top of the conductive nozzle disassembly inner cylinder 250 and the spacer ring 28 on the conductive nozzle disassembly outer cylinder 251. The conductive nozzle disassembly spring 256 One end of the conductive nozzle disassembly inner cylinder 250 abuts against the top, and the other end abuts against the spacer ring 28 fixedly provided on the conductive nozzle disassembly outer cylinder 251. By setting the conductive nozzle disassembly spring 256, the conductive nozzle mouth and the tail can be moved closer or farther away from each other during disassembly to meet the need for mutual movement between each other during threaded disassembly. A conductive nozzle disassembly gear 257 is provided on the side of the spacer ring 28 fixed on the conductive nozzle disassembly inner cylinder 250 away from the conductive nozzle disassembly spring 256. The conductive nozzle disassembly gear 257 is fixedly connected to the conductive nozzle disassembly outer cylinder 251. The conductive nozzle disassembly gear 257 is meshed with the driving gear for transmission, thereby realizing the rotation of the conductive nozzle disassembly inner cylinder 250 and the conductive nozzle disassembly outer cylinder 251, and realizing the mutual disassembly of the conductive nozzle mouth and the tail located inside the conductive nozzle disassembly inner cylinder 250.

[0050] Please refer to Figure 15-18As shown, a mounting sleeve 258 is provided at the bottom of the conductive nozzle disassembly outer cylinder 251, and the mounting sleeve 258 is sleeved on the conductive nozzle disassembly inner cylinder 250 and fixedly connected to the box body 2, that is, the conductive nozzle disassembly inner cylinder 250 rotates in the mounting sleeve 258, and a plurality of limiting columns 2501 are installed on the mounting circumference of the conductive nozzle disassembly inner cylinder 250, and the mounting position of the limiting columns 2501 on the mounting sleeve 258 can be adjusted, and the mounting depth of the limiting columns 2501 on the mounting sleeve 258 can be changed by rotation, and a limiting groove 2502 is formed on the bottom circumference of the conductive nozzle disassembly inner cylinder 250, and one end of the limiting column 2501 abuts against the limiting groove 2502, and the contact position of one end of the limiting column 2501 with the limiting groove 2502 is changed by adjusting the installation of the limiting column 2501, and when the conductive nozzle disassembly inner cylinder 250 is rotated, the limiting column 2501 and the limiting groove 2502 Friction is formed between them. Due to the different installation positions of the limiting column 2501 on the limiting groove 2502, the friction force formed between the limiting column 2501 and the limiting groove 2502 is different, which can change the torque required for rotating the conductive nozzle to remove the inner cylinder 250; a detection sensor 2503 is installed at one end of the conductive nozzle removal inner cylinder 250 close to the limiting groove 2502, and a guide groove 213 is provided on one side of the detection sensor 2503. The guide groove 213 is fixedly connected to the lower box body 21, and the guide groove 213 is connected to the conductive nozzle sliding cavity 252. The disassembled conductive nozzle mouth slides to the guide groove 213 through the conductive nozzle sliding cavity 252. During the sliding process, the detection sensor 2503 can monitor whether the conductive nozzle mouth is disassembled. If no conductive nozzle mouth is detected to slide, the device alarms. If the conductive nozzle mouth is detected to slide, the next step is performed.

[0051] Please refer to Fig.11 , 13As shown, one side of the plurality of conductive nozzle mounting mechanisms 24 is provided with a conductive nozzle mounting auxiliary mechanism 27, and the structures of the conductive nozzle mounting mechanism 24 and the conductive nozzle mounting auxiliary mechanism 27 are consistent, and the conductive nozzle mounting mechanism 24 and the conductive nozzle mounting auxiliary mechanism 27 include a conductive nozzle mounting cylinder 241 and a conductive nozzle supporting column 242, and the conductive nozzle supporting column 242 is connected to the top of the conductive nozzle mounting cylinder 241, and the conductive nozzle supporting column 242 and the clamping nozzle 254 are consistent in principle, and the conductive nozzle supporting column 242 limits the conductive nozzle mouth at the top of the conductive nozzle mounting cylinder 241, so that the conductive nozzle mouth cannot rotate and slide downward in the conductive nozzle mounting cylinder 241, and a conductive nozzle mounting gear 243 is provided on the conductive nozzle mounting cylinder 241. The conductive nozzle mounting gear 243 is spline-connected with the conductive nozzle mounting cylinder 241, wherein the conductive nozzle mounting gear 243 is limitedly mounted on different layers of the housing 2 through a spacer ring 28, and at the same time, the spacer ring 28 is rotatably connected in the housing 2 through a bearing, thereby realizing synchronous rotation of the conductive nozzle mounting gear 243 and the conductive nozzle mounting cylinder 241, and at the same time, the conductive nozzle mounting cylinder 241 can move up and down along the conductive nozzle mounting gear 243 for a certain stroke, and the robot arm can be kept stationary during the installation of the nozzle and tail of the conductive nozzle, and the conductive nozzle mounting gears 243 on the plurality of conductive nozzle mounting mechanisms 24 are all synchronously meshed with the conductive nozzle disassembly gear 257, and one of the conductive nozzle mounting gears 243 is meshed with the conductive nozzle disassembly gear 257. The driving gear 212 is meshed for transmission, the conductive nozzle installation gear 243 on the conductive nozzle installation auxiliary mechanism 27 is meshed with another conductive nozzle installation gear 243, and multiple conductive nozzle installation gears 243 on multiple conductive nozzle installation mechanisms 24 are distributed along the circumference of the conductive nozzle removal gear 257, and are respectively meshed for transmission, while one conductive nozzle installation gear 243 is meshed for transmission with the conductive nozzle removal gear 257, the other circumferential surface is meshed for transmission with the driving gear 212, and finally the rotation of the multiple conductive nozzle installation gears 243 and the conductive nozzle removal gear 257 is realized, in addition, another conductive nozzle installation gear 243 is meshed for transmission with the conductive nozzle installation gear 243 on the conductive nozzle installation auxiliary mechanism 27, but the conductive nozzle installation gear 243 is meshed for transmission. The conductive nozzle installation gear 243 on the conductive nozzle installation auxiliary mechanism 27 and the conductive nozzle installation gear 243 on the conductive nozzle installation mechanism 24 rotate in opposite directions. During the installation of the conductive nozzle, multiple conductive nozzle installation gears 243 are the nozzles of the same batch of conductive nozzles. The conductive nozzle installation auxiliary mechanism 27 can be installed as the last or first of the multiple conductive nozzle nozzles. Since the conductive nozzle installation auxiliary mechanism 27 and the conductive nozzle installation mechanism 24 rotate in different directions, when installing the conductive nozzle on the conductive nozzle installation auxiliary mechanism 27, it is necessary to change the rotation direction of the gear set to remind the staff that the nozzles of the same batch of conductive nozzles have been used up, and the conductive nozzle nozzles need to be loaded on each conductive nozzle installation mechanism 24 and the conductive nozzle installation auxiliary mechanism 27.

[0052] Please refer to Figure 13-16 As shown, a waist-shaped groove 223 is penetrated through the blade plate 222, and a wire-cutting eccentric knife shaft 228 is arranged in the waist-shaped groove 223, and the wire-cutting eccentric knife shaft 228 is adapted to the waist-shaped groove 223. A wire-cutting shaft 226 is arranged on one side of the wire-cutting eccentric knife shaft 228, and the wire-cutting shaft 226 is rotatably connected in the box body 2 through a spacer ring 28, and the wire-cutting shaft 226 is fixedly connected to the wire-cutting eccentric knife shaft 228, and a wire-cutting gear 227 is arranged on the circumference of the wire-cutting shaft 226, and the wire-cutting gear 227 is fixedly connected to the wire-cutting shaft 226, and the wire-cutting gear 227 is meshed with the conductive nozzle disassembly gear 257 which is closest to the conductive nozzle disassembly gear 257 for transmission, and the wire-cutting shaft 226 is limitedly installed in the box body through the spacer ring 28. 2, and at the same time, they are rotatably connected to the different layers of the box body 2 through bearings. Since the wire cutting gear 227 is rotatably connected to the wire cutting shaft 226, the wire cutting gear 227 is meshed with one of the conductive nozzle mounting gears 243, and finally the driving gear 212 drives the wire cutting shaft 226 to rotate. The top of the wire cutting shaft 226 is fixedly connected to the wire cutting eccentric knife shaft 228, and the wire cutting eccentric knife shaft 228 is an eccentric shaft. At the same time, the wire cutting eccentric knife shaft 228 is slidably matched in the waist-shaped groove 223 opened in the blade plate 222, and the blade plate 222 is slidably connected to the top of the blade box 221, and finally the rotation of the wire cutting shaft 226 can drive the blade plate 222 to slide on the blade box 221, that is, the cutting is formed between the upper blade 224 and the lower blade 225.

[0053] Please refer to Figure 6-8 As shown, it also includes a conductive nozzle mouth detection mechanism 26, which includes a tentacle sensor 261. The tentacle sensor 261 is installed and connected to the box body 2. The conductive nozzle mouth detection mechanism 26 is installed on one side of the nozzle disassembly and assembly mechanism 23, and is used to detect whether the conductive nozzle mouth is installed.

[0054] The device also includes a wire feeding device (not shown), which is an existing conventional technology. The wire feeding device is installed on the robot arm to feed or collect wire into the conductive nozzle.

[0055] The working principle of the utility model includes the following steps:

[0056] 1. Wire feeding device: The wire feeding device controls the elongation of the conductive wire to facilitate the replacement of the conductive nozzle, and controls the robot arm to control the welding gun to move above the wire cutting device;

[0057] 2. Wire cutting device Wire cutting: Cut the excess welding spots and welding slag formed on the conductive wire during welding to avoid affecting the removal of the conductive nozzle. The wire cutting gear 227 is meshed with one of the conductive nozzle mounting gears 243 for transmission. The conductive nozzle mounting gear 243 is meshed with the driving gear 212 through the conductive nozzle removal gear 257 and the other conductive nozzle mounting gear 243. The driving gear 212 is driven by the driving motor 211, and finally the motor drives the wire cutting shaft 226 to rotate. Since the top of the wire cutting shaft 226 is fixedly provided with an eccentric shaft wire cutting eccentric knife shaft 228 , the wire cutting eccentric blade shaft 228 is slidably connected in the waist-shaped groove 223 provided on the blade plate 222, and the blade plate 222 slides on the top of the blade box 221, that is, on the side of the upper blade 224. Since the lower blade 225 is fixedly provided on the blade plate 222, the rotation of the wire cutting shaft 226 is changed into the lateral sliding of the blade plate 222, thereby realizing the cutting between the upper blade 224 and the lower blade 225, and realizing the cutting of the welding wire. The cut welding wire falls into the welding wire collecting groove 202 for collection. After the conductive wire cutting is completed, the welding gun is transferred to the top of the nozzle disassembly mechanism 23;

[0058] 3. Nozzle disassembly mechanism 23 removes the nozzle: the robot arm controls the welding gun to move into the nozzle sleeve 230. As the welding gun gradually moves downward, the bottom of the welding gun finally contacts the bottom of the nozzle clamp 232, and controls the nozzle clamp 232 to rotate along the pin thereon, and finally the top of the nozzle clamp 232 clamps the nozzle on the welding gun. The nozzle on the welding gun is firmly clamped in the nozzle sleeve 230 under the action of the nozzle clamp 232 and the downward pressure of the robot arm. The nozzle is threadedly matched with the robot arm by rotating the nozzle sleeve 230 to realize the disassembly of the nozzle. The rotation of the nozzle sleeve 230 is realized by the nozzle disassembly gear 235 provided thereon, and the sliding block 23 is fixedly provided in the nozzle disassembly gear 235. 8. The upper and lower ends of the nozzle disassembly gear 235 are limitedly installed on different layers of the box body 2 through the spacer ring 28, and are rotatably connected with different layers through the bearing. At the same time, a sliding groove 237 is opened on the circumference of the nozzle sleeve 230, and the sliding groove 237 is slidably connected with the sliding block 238. The nozzle sleeve 230 can slide up and down along the nozzle disassembly gear 235. At the same time, a nozzle disassembly spring 234 is sleeved on the nozzle sleeve 230 to realize reset after movement, so that the threaded fit between the nozzle and the robot arm leads to mutual movement when disassembling. The nozzle disassembly gear 235 is synchronously meshed with the driving gear 212, that is, the rotation of the driving motor 211 can drive the synchronous rotation of the nozzle disassembly gear 235 and the nozzle sleeve 230;

[0059] 4. Check whether the nozzle is disassembled: After the nozzle is disassembled, the robot arm only clamps the conductive nozzle and moves to the designated position in the detection slot to wait for detection. Light sensors are provided on both sides of the detection slot. The light sensors are used to detect the position of the nozzle. The transmitting end of the light sensor emits a light beam, and the receiving end detects the light source. Since the outer diameter of the nozzle is different from the outer diameter of the conductive nozzle, the blocking area of ​​the light beam is different. The light sensor can determine whether the nozzle is disassembled according to the setting of the program and the reception of the light source. If the nozzle is not disassembled, an alarm signal is issued to remind the staff. At the same time, the robot arm clamps the nozzle to the nozzle disassembly mechanism 23 for secondary disassembly. After disassembly, detection is performed again until it is detected that the nozzle is disassembled.

[0060] 5. The conductive nozzle disassembly mechanism 25 disassembles the mouth and tail of the conductive nozzle: after the conductive nozzle is flushed, it is transferred to the conductive nozzle disassembly mechanism 25, wherein the conductive nozzle is inserted into the conductive nozzle disassembly inner cylinder 250, and a clamping nozzle 254 is provided in the conductive nozzle disassembly inner cylinder 250, and the clamping nozzle 254 limits the conductive nozzle to prevent the conductive nozzle from rotating in the nozzle sleeve 230, and the conductive nozzle disassembly inner cylinder 250 and the conductive nozzle disassembly outer cylinder 251 can move up and down, wherein the circumference of the conductive nozzle disassembly outer cylinder 251 is fixedly provided with a conductive nozzle disassembly gear 257. The conductive nozzle disassembly gear 257 is limitedly installed on different layers of the box body 2 through a spacer ring 28, and at the same time, it is rotatably connected with different layers through a bearing, and the conductive nozzle disassembly inner cylinder 250 and the conductive nozzle disassembly outer cylinder 251 are spline-connected, and the conductive nozzle disassembly inner cylinder 250 and the conductive nozzle disassembly outer cylinder 251 are spline-connected. 0 and the conductive nozzle disassembly outer cylinder 251 are provided with a conductive nozzle disassembly spring 256 to achieve reset after movement, and the conductive nozzle disassembly gear 257 is meshed with the driving gear 212 through the conductive nozzle installation gear 243 to achieve the driving motor 211 to drive the conductive nozzle disassembly inner cylinder 250 to rotate, thereby achieving the disassembly of the conductive nozzle mouth and tail, wherein a limiting groove 2502 is formed at the bottom of the conductive nozzle disassembly inner cylinder 250, and a limiting column 2501 is correspondingly provided on the limiting groove 2502, and the limiting column 2501 can be adjustably installed on the installation sleeve 258, and the friction force formed by the contact between the installation column and the limiting groove 2502 can be changed by controlling the installation distance of the limiting column 2501 on the installation sleeve 258, thereby changing the torque required for rotating the nozzle sleeve 230 and each mechanism;

[0061] 6. The detection sensor 2503 detects whether the conductive nozzle is disassembled: After the conductive nozzle is disassembled, it falls along the conductive nozzle sliding cavity 252 to the welding wire collecting groove 202. During the falling process, the detection sensor 2503 detects whether the conductive nozzle falls to determine whether the conductive nozzle is disassembled successfully. After the disassembly is completed, the tail of the conductive nozzle is transferred to the conductive nozzle installation mechanism 24 by the mechanical arm;

[0062] 7. The conductive nozzle installation mechanism 24 installs a new conductive nozzle: the tail of the conductive nozzle is brought into contact with the new conductive nozzle placed on the conductive nozzle installation cylinder 241, and then the threaded installation between the new conductive nozzle and the tail of the conductive nozzle is realized by rotating the conductive nozzle installation cylinder 241. The rotation of the conductive nozzle installation cylinder 241 is driven by the conductive nozzle installation gear 243 and the conductive nozzle removal gear 257, and one of the conductive nozzle installation gears 243 is driven by the driving gear 212. The storage of the conductive nozzle includes the conductive nozzle installation mechanism 24 and the conductive nozzle installation auxiliary mechanism 27. The rotation directions of the multiple conductive nozzle installation mechanisms 24 are consistent, and the rotation direction of the conductive nozzle installation auxiliary mechanism 27 is opposite to that of the conductive nozzle installation mechanism 24. The conductive nozzle installation auxiliary mechanism 27 can be used as the last one of the same batch of conductive nozzles. That is, when the conductive nozzle installation auxiliary mechanism 27 installs the conductive nozzle, the rotation direction is opposite to that of the multiple conductive nozzle installation mechanisms 24. It can be used to remind the user to load the conductive nozzle.

[0063] 8. The conductive nozzle detection mechanism 26 detects whether the new conductive nozzle is installed: the robot arm controls the conductive nozzle to move to the side of the whisker sensor 261, so that the axis of the sensing line of the whisker sensor 261 is perpendicular to the axis of the conductive nozzle. When the new conductive nozzle is installed, the robot arm moves to the specified position, and the conductive nozzle contacts the whisker sensor 261, sending a signal to the control program. The control program determines that the new conductive nozzle is successfully installed. Otherwise, the new conductive nozzle fails to be installed, an alarm is sounded to remind the staff, and the installation of the conductive nozzle is repeated until it is detected that the conductive nozzle is successfully installed.

[0064] 9. The nozzle disassembly and assembly mechanism 23 installs the nozzle: the robot arm first transfers the nozzle in the detection tank to the nozzle disassembly and assembly mechanism 23, and controls the nozzle sleeve 230 to rotate in the opposite direction to that during disassembly, thereby achieving the installation of the nozzle;

[0065] 10. Check whether the nozzle is installed: After the nozzle is installed, the robot arm controls the nozzle and the conductive nozzle to move to the designated position in the detection slot to wait for detection. Light sensors are provided on both sides of the detection slot. The light sensors are used to detect the position of the nozzle. The transmitting end of the light sensor emits a light beam, and the receiving end detects the light source. Since the outer diameter of the nozzle is different from the outer diameter of the conductive nozzle, the blocking area of ​​the light beam is different. The light sensor can determine whether the nozzle is disassembled according to the setting of the program and the reception of the light source. If the nozzle is not installed, an alarm signal is issued to remind the staff. At the same time, the robot arm clamps the nozzle to the conductive nozzle installation mechanism 24 for secondary installation. After installation, detection is performed again until the nozzle is installed.

[0066] 11. The wire feeding device transports the conductive wire: the wire feeding device is controlled to transport the conductive wire into the conductive nozzle to realize the replacement of the conductive nozzle. At the same time, the wire feeding device realizes the transportation of the conductive wire during welding.

[0067] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims of this application, they should all fall within the protection scope of the utility model.

Claims

1. A novel contact tip replacement device, characterized in that: It includes a column, on which a box is installed, the box includes a lower box and an upper box fixedly connected to the top of the lower box, the top of the upper box is provided with a mounting groove, and the upper box is installed with: A wire cutting device is installed in the installation groove, comprising a blade box, an upper blade is fixedly provided on the top of the blade box, a blade plate is installed on the blade box, the blade plate is slidably connected to one side of the upper blade, a lower blade is fixedly provided on the blade plate, and the lower blade and the upper blade cooperate with each other in cutting; The nozzle disassembly mechanism is installed in the box, and comprises a nozzle sleeve, wherein a clamping claw groove is provided in the nozzle sleeve, a nozzle clamping claw is movably connected in the clamping claw groove, and a nozzle disassembly gear is provided on the nozzle sleeve, and the nozzle disassembly gear is spline-connected with the nozzle sleeve; A conductive nozzle disassembly mechanism is installed on one side of the nozzle disassembly mechanism, comprising a conductive nozzle disassembly inner cylinder, a conductive nozzle sliding cavity is formed in the conductive nozzle disassembly inner cylinder, a clamping nozzle for limiting the disassembly of the conductive nozzle is provided on the top of the conductive nozzle disassembly inner cylinder, and the clamping nozzle is installed and connected in the conductive nozzle disassembly inner cylinder through a torsion spring; There are multiple conductive nozzle installation mechanisms, and the multiple conductive nozzle installation mechanisms are distributed around the conductive nozzle removal mechanism, and a conductive nozzle is stored on the top of each conductive nozzle installation mechanism.

2. The novel contact tip replacement device according to claim 1 is characterized in that: A driving motor is fixedly arranged in the lower box body, and a driving gear is arranged at the output end of the driving motor, and the driving gear is drivingly connected with the output end of the driving motor. A sliding groove is arranged on the circumference of the nozzle sleeve, and a sliding block is slidingly arranged in the sliding groove, and one end of the sliding block is fixedly connected with the nozzle disassembly and assembly gear. Fixed blocks are arranged at both ends of the nozzle disassembly and assembly gear, and one end of the fixed block abuts against the nozzle disassembly and assembly gear, and the other end is rotatably connected with the box body through a bearing. A nozzle disassembly and assembly spring is arranged between the top of the nozzle sleeve and the fixed block close to one end of the clamping claw groove, and its two ends abut against the top of the nozzle sleeve and the fixed block respectively; a telescope is arranged at the bottom of the nozzle sleeve, and the fixed end of the telescope is fixedly connected with the top of the lower box body, and the output end thereof is fixedly connected with the nozzle sleeve.

3. The new contact tip replacement device according to claim 2 is characterized in that: At least two clamping jaws are provided on the inner wall of the nozzle sleeve. The clamping jaws penetrate the nozzle sleeve. Each clamping jaw is connected to the nozzle clamping jaw via a latch. Both ends of the nozzle clamping jaw are bent.

4. The novel contact tip replacement device according to claim 2 is characterized in that: A conductive nozzle disassembly outer cylinder is sleeved on the conductive nozzle disassembly inner cylinder, the conductive nozzle disassembly outer cylinder is fixedly connected to the upper box body, a spacer ring is fixedly provided on the conductive nozzle disassembly outer cylinder, the conductive nozzle disassembly outer cylinder is installed and connected to the box body through the spacer ring provided thereon, a conductive nozzle disassembly spring is provided between the top of the conductive nozzle disassembly inner cylinder and the spacer ring on the conductive nozzle disassembly outer cylinder, one end of the conductive nozzle disassembly spring abuts against the top of the conductive nozzle disassembly inner cylinder, and the other end abuts against the spacer ring fixedly provided on the conductive nozzle disassembly outer cylinder, a conductive nozzle disassembly gear is provided on the side of the spacer ring fixed on the conductive nozzle disassembly inner cylinder away from the conductive nozzle disassembly spring, and the conductive nozzle disassembly gear is fixedly connected to the conductive nozzle disassembly outer cylinder.

5. The novel contact tip replacement device according to claim 4 is characterized in that: A mounting sleeve is provided at the bottom of the conductive nozzle disassembly outer cylinder, the mounting sleeve is sleeved on the conductive nozzle disassembly inner cylinder and fixedly connected to the box body, a plurality of limiting columns are installed on the mounting circumference of the conductive nozzle disassembly inner cylinder, a limiting groove is formed on the bottom circumference of the conductive nozzle disassembly inner cylinder, one end of the limiting column abuts against the limiting groove; a detection sensor is installed at one end of the conductive nozzle disassembly inner cylinder close to the limiting groove, a guide groove is provided on one side of the detection sensor, the guide groove is fixedly connected to the lower box body, and the guide groove is communicated with the conductive nozzle sliding cavity.

6. The novel contact tip replacement device according to claim 5 is characterized in that: A conductive nozzle installation auxiliary mechanism is provided on one side of the multiple conductive nozzle installation mechanisms, the conductive nozzle installation mechanism and the conductive nozzle installation auxiliary mechanism include a conductive nozzle installation cylinder and a conductive nozzle support column, the conductive nozzle support column is installed and connected to the top of the conductive nozzle installation cylinder, the conductive nozzle installation cylinder is provided with a conductive nozzle installation gear, the conductive nozzle installation gear is spline-connected to the conductive nozzle installation cylinder, the conductive nozzle installation gears on the multiple conductive nozzle installation mechanisms are all synchronously meshed with the conductive nozzle removal gear, and one of the conductive nozzle installation gears is meshed with the driving gear for transmission, and the conductive nozzle installation gear on the conductive nozzle installation auxiliary mechanism is meshed with another one of the conductive nozzle installation gears.

7. The novel contact tip replacement device according to claim 6 is characterized in that: A welding wire collecting groove is provided between the upper blade and the lower blade, a waist-shaped groove is penetrated through the blade plate, a wire cutting eccentric knife shaft is provided in the waist-shaped groove, the wire cutting eccentric knife shaft is adapted to the waist-shaped groove, a wire cutting shaft is provided on one side of the wire cutting eccentric knife shaft, the wire cutting shaft is rotatably connected to the box body through a spacer ring, the wire cutting shaft is fixedly connected to the wire cutting eccentric knife shaft, a wire cutting gear is provided on the circumferential surface of the wire cutting shaft, the wire cutting gear is fixedly connected to the wire cutting shaft, the wire cutting gear is meshed with the conductive nozzle disassembly gear closest to the conductive nozzle disassembly gear for transmission.

8. The novel contact tip replacement device according to claim 1 is characterized in that: It also includes a conductive nozzle mouth detection mechanism, which includes a tentacle sensor, and the tentacle sensor is installed and connected to the box body. The conductive nozzle mouth detection mechanism is installed on one side of the nozzle disassembly and assembly mechanism, and is used to detect whether the conductive nozzle mouth is installed.

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