Automatic tungsten electrode replacing device

Abstract

The utility model discloses an automatic tungsten electrode replacing device which comprises a device base, a first electrode, a second electrode, a third electrode and a fourth electrode. At least part of the tungsten electrode storage warehouse is arranged in the containing space, the tungsten electrode storage warehouse comprises a rotating assembly and a plurality of tungsten electrode storage pieces, each tungsten electrode storage piece is configured to store a tungsten electrode, and each tungsten electrode storage piece is arranged on the rotating assembly so as to rotate along with the rotating assembly; the rotating driving mechanism is arranged in the accommodating space and is configured to be in driving connection with the rotating assembly; the tungsten electrode moving mechanism is arranged in the containing space, and the tungsten electrode moving mechanism is configured to enable the tungsten electrode in the at least one tungsten electrode storage part to move to a first position in the first direction; wherein the tungsten electrode located at the first position is configured to be replaced by a tungsten electrode replacement robot. According to the automatic tungsten electrode replacing device, the requirement for automatically replacing the tungsten electrode in the market is met through the simple structure and the low equipment cost.

Description

Technical Field

[0001] The utility model relates to the field of machining, in particular to an automatic tungsten electrode replacement device. Background Art

[0002] At present, the intelligent demand for pipeline prefabrication in industrial projects is becoming increasingly urgent, especially the requirement for intelligent welding. For pipeline welding in important occasions, argon arc welding must be used. Therefore, the combination of argon arc welding + robot has become the first choice for pipeline welding intelligence.

[0003] Argon arc welding uses the arc between the tungsten electrode and the workpiece to melt the metal to achieve welding. During the welding process, the tungsten electrode will not melt, but it will cause wear and passivation of the head of the tungsten electrode. The wear and passivation of the head of the tungsten electrode will affect the welding stability, so it is necessary to replace or remove and grind the tungsten electrode irregularly.

[0004] Currently, it is quite common to replace or remove and grind the tungsten electrode manually. The efficiency of manual replacement or removal and grinding is low and the standardization is poor. Although there have been some applications for automatic tungsten electrode replacement devices, no automatic tungsten electrode changer has been found on the market for sale.

[0005] In view of the limitations of the existing technology and the growth of market demand, it is very urgent to develop an automatic tungsten electrode replacement device that meets market demand, is vertically arranged, has a simple structure, and has a low cost. Summary of the Utility Model

[0006] In view of the above-mentioned defects of the existing technology, the technical problem to be solved by the utility model is to provide an automatic tungsten electrode replacement device to meet the need of automatic tungsten electrode replacement in the market with a simple structure and low equipment cost.

[0007] To achieve the above object, the utility model provides an automatic tungsten electrode replacement device for cooperating with a tungsten electrode replacement robot, which includes:

[0008] A device base, in which a containing space is provided;

[0009] A tungsten electrode storage warehouse, at least part of which is placed in the containing space. The tungsten electrode storage warehouse includes a rotating assembly and a plurality of tungsten electrode storage members. Each tungsten electrode storage member is configured to store tungsten electrodes, and each tungsten electrode storage member is arranged on the rotating assembly to rotate with the rotating assembly;

[0010] A rotation driving mechanism, which is placed in the containing space and is configured to be drivingly connected to the rotating assembly;

[0011] A tungsten electrode moving mechanism, which is placed in the accommodation space and configured to move the tungsten electrode in one of the tungsten electrode storage members to a first position;

[0012] Wherein, the tungsten electrode located at the first position is configured to be replaced by the tungsten electrode replacement robot.

[0013] In one feasible embodiment, the rotating assembly includes an upper cover plate, a lower cover plate, a mandrel and a bushing. The upper cover plate and the lower cover plate are spaced apart in a first direction. The mandrel is disposed between the upper cover plate and the lower cover plate, and the mandrel is connected to the rotational drive mechanism through the bushing.

[0014] In one feasible embodiment, each of the tungsten electrode storage members includes a sleeve and a stop post disposed in the sleeve. Each of the tungsten electrode storage members is disposed between the upper cover plate and the lower cover plate. The tungsten electrode moving mechanism drives the stop post to drive the corresponding tungsten electrode to move to the first position in the first direction.

[0015] In one feasible embodiment, the first direction is the vertical direction (gravity direction); the first position is a position slightly higher than the upper cover plate in the vertical direction.

[0016] In one feasible embodiment, the upper cover plate and the lower cover plate are of a disc structure, and 24 tungsten electrodes are uniformly distributed along the circumferences of the upper cover plate and the lower cover plate.

[0017] In one feasible embodiment, the rotational drive mechanism includes a first drive device, which is directly or indirectly connected to the bushing. The first drive device drives the bushing to drive the mandrel to rotate, so that the upper cover plate and the lower cover plate rotate.

[0018] In one feasible embodiment, the first drive device is a servo motor. The rotational drive mechanism further includes a planetary reducer drivingly connected to the servo motor. The planetary reducer is connected to the servo motor and the bushing to transmit the driving force of the servo motor to the mandrel, so that the tungsten electrode storage warehouse rotates by one or more pitches.

[0019] In one feasible embodiment, the tungsten electrode moving mechanism includes a second drive device and a lifting device connected to the second drive device. The lifting device includes a top rod clamp block and a top rod disposed on the top rod clamp block. The second drive device is connected to the top rod clamp block to drive the top rod to move in the first direction.

[0020] In one feasible embodiment, the second drive device is a rodless cylinder, and the rodless cylinder is connected to the top rod clamp block through a slider or a magnetic platform.

[0021] In one feasible embodiment, the second driving device is a magnetic coupling rodless cylinder, and the magnetic coupling rodless cylinder is connected to the ejector rod clamp block through a magnetic platform.

[0022] In one feasible embodiment, the automatic tungsten electrode replacement device further includes a tungsten electrode clamping and discarding mechanism. The tungsten electrode clamping and discarding mechanism is arranged in the accommodating space. The tungsten electrode clamping and discarding mechanism includes a third driving device, a clamp assembly, and a tungsten electrode storage box. The clamp assembly is arranged above the tungsten electrode storage box, and the third driving device is connected to and drives the clamp assembly to clamp or release the tungsten electrode provided by the tungsten electrode replacement robot at a second position.

[0023] In one feasible embodiment, the device base includes a first vertical steel plate, a second vertical steel plate, a third vertical steel plate, a first horizontal steel plate, a second horizontal steel plate, and a third horizontal steel plate. The first vertical steel plate, the second vertical steel plate, and the third vertical steel plate are connected between the first horizontal steel plate and the second horizontal steel plate at intervals; the first vertical steel plate and the third vertical steel plate are connected between the second horizontal steel plate and the third horizontal steel plate at intervals;

[0024] The accommodating space includes a first accommodating space formed by the first vertical steel plate, the second vertical steel plate, the first horizontal steel plate, and the second horizontal steel plate, a second accommodating space formed by the second vertical steel plate, the third vertical steel plate, the first horizontal steel plate, and the second horizontal steel plate, and a third accommodating space formed by the first vertical steel plate, the third vertical steel plate, the second horizontal steel plate, and the third horizontal steel plate;

[0025] Wherein, the tungsten electrode clamping and discarding mechanism is located in the first accommodating space, the tungsten electrode storage warehouse is at least partially located in the second accommodating space, and the rotation driving mechanism and the tungsten electrode moving mechanism are located in the third accommodating space.

[0026] In one feasible embodiment, the automatic tungsten electrode replacement device further includes a control mechanism. The control mechanism is electrically connected to the tungsten electrode clamping and discarding mechanism, the rotation driving mechanism, and the tungsten electrode moving mechanism. The control mechanism is configured to control any one or more of the tungsten electrode clamping and discarding mechanism, the rotation driving mechanism, and the tungsten electrode moving mechanism in response to the operation or command of the user.

[0027] The device provided by the present utility model has the following technical effects:

[0028] 1. The automatic tungsten electrode replacement device of the present application adopts a vertical structure design to replace the tungsten electrode in the first direction (the direction of gravity). This design can meet the needs of most argon arc welding occasions and satisfy the urgent requirements of industrial automation and intelligence.

[0029] 2. The automatic tungsten electrode replacement device of this application adopts an extremely simplified tungsten electrode storage structure, including the storage of 24 tungsten electrodes and a simple mechanical rotation mechanism. This structural simplification not only reduces the number of components but also lowers the risk of failures caused by complex mechanical structures, improving the reliability of the device.

[0030] 3. The automatic tungsten electrode replacement device of this application can accommodate 24 tungsten electrodes with different diameters (Ф1.6 - 3.2mm), which provides users with greater flexibility and convenience. The large-capacity design means reducing the frequency of adding tungsten electrodes, thus reducing the labor intensity of workers and significantly enhancing the continuity and efficiency of welding work.

[0031] 4. The automatic tungsten electrode replacement device of this application limits the replacement action to two fixed workstations, namely the top-loading workstation (the first position) and the abandonment workstation (the second position), greatly simplifying the programming work of the robot and enabling operators to quickly set up and adjust the welding robot, improving work efficiency.

[0032] 5. The automatic tungsten electrode replacement device of this application adopts a rodless lifting mechanism and combines it with a special robot welding torch to achieve rapid and accurate replacement of the tungsten electrode. It is not only easy to operate but also ensures the standardization of the tungsten electrode extension length, further improving the welding quality.

[0033] 6. The automatic tungsten electrode replacement device of this application reduces manual intervention through an automated tungsten electrode replacement process, thereby reducing production delays and cost increases caused by improper manual operations. At the same time, due to the high efficiency and low failure rate of the device, a large amount of operating costs and maintenance costs can be saved.

[0034] The following will further illustrate the concept, specific structure, and technical effects of the present utility model in conjunction with the drawings to fully understand the purpose, features, and effects of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a schematic structural diagram of a preferred embodiment of the automatic tungsten electrode replacement device of the present utility model;

[0036] Figure 2 is a schematic structural diagram of a preferred embodiment of the device base in the automatic tungsten electrode replacement device of the present utility model;

[0037] Figure 3 is a schematic structural diagram of a preferred embodiment of the tungsten electrode storage warehouse in the automatic tungsten electrode replacement device of the present utility model;

[0038] Figure 4 is a schematic structural diagram of a preferred embodiment of the rotation drive mechanism and tungsten electrode movement mechanism in the automatic tungsten electrode replacement device of the present utility model;

[0039] Figure 5 This is a schematic structural diagram of a preferred embodiment of the tungsten electrode clamping and discarding mechanism in the automatic tungsten electrode replacement device of the present utility model. Specific embodiments

[0040] The following uses specific examples to illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0041] It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present utility model in a schematic manner. Therefore, only the components related to the present utility model are shown in the diagrams, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0042] For the purpose of illustration, some exemplary embodiments of the present utility model are described. It should be understood that the present utility model can be implemented in other ways not specifically shown in the drawings.

[0043] Figure 1 The schematic structural diagram of the automatic tungsten electrode replacement device shown in an embodiment of the present application is shown. As Figure 1 shown, the automatic tungsten electrode replacement device of this embodiment includes a device base 1, a tungsten electrode storage warehouse 2, a rotation drive mechanism 3, a tungsten electrode moving mechanism 4, and a tungsten electrode clamping and discarding mechanism 5. Among them, a receiving space 10 is provided inside the device base 1, and the tungsten electrode storage warehouse 2, the rotation drive mechanism 3, the tungsten electrode moving mechanism 4, and the tungsten electrode clamping and discarding mechanism 5 are all at least partially placed in the receiving space 10. The tungsten electrode storage warehouse 2 includes a rotation assembly 21 and a plurality of tungsten electrode storage members 22 provided thereon. The rotation drive mechanism 3 is drivingly connected to the rotation assembly 21, and by driving the rotation of the rotation assembly 21, the tungsten electrode storage members 22 can be rotated accordingly. The tungsten electrode moving mechanism 4 is directly or indirectly connected to the tungsten electrode storage members 22, and by driving its operation, at least one tungsten electrode 20 in the tungsten electrode storage members 22 can be moved to the first position. When the tungsten electrode 20 is located at the first position, the external tungsten electrode replacement robot 100 then starts the tungsten electrode replacement work, and the discarded tungsten electrode after replacement is transported to the second position by the tungsten electrode replacement machine and is clamped and received by the tungsten electrode clamping and discarding mechanism 5.

[0044] It can be understood that generally only one tungsten electrode 20 can be stored in one tungsten electrode storage member 22.

[0045] Specifically, Figure 2 The structural schematic diagram of the device base 1 shown in an embodiment of the present application is shown. Combining Figure 2 As shown, the device base 1 includes a first vertical steel plate 11, a second vertical steel plate 12, a third vertical steel plate 13, a first horizontal steel plate 14, a second horizontal steel plate 15, and a third horizontal steel plate 16. The first vertical steel plate 11, the second vertical steel plate 12, and the third vertical steel plate 13 are connected between the first horizontal steel plate 14 and the second horizontal steel plate 15 at intervals; the first vertical steel plate 11 and the third vertical steel plate 13 are connected between the second horizontal steel plate 15 and the third horizontal steel plate 16 at intervals.

[0046] The accommodation space 10 includes a first accommodation space 101 formed by the first vertical steel plate 11, the second vertical steel plate 12, the first horizontal steel plate 14, and the second horizontal steel plate 15, a second accommodation space 102 formed by the second vertical steel plate 12, the third vertical steel plate 13, the first horizontal steel plate 14, and the second horizontal steel plate 15, and a third accommodation space 103 formed by the first vertical steel plate 11, the third vertical steel plate 13, the second horizontal steel plate 15, and the third horizontal steel plate 16.

[0047] The tungsten electrode storage warehouse 2 is located in the second accommodation space 102. Specifically, Figure 3 The structural schematic diagram of the tungsten electrode storage warehouse 2 shown in an embodiment of the present application is shown. Combining Figure 3 As shown, the tungsten electrode storage warehouse 2 of this embodiment includes a rotating assembly 21 and a plurality of tungsten electrode storage members 22. Each tungsten electrode storage member 22 includes a sleeve 221 for storing a tungsten electrode 20 and a stop post 222 provided at the bottom of the sleeve 221. The rotating assembly 21 includes an upper cover plate 211, a lower cover plate 212, a mandrel 213, and a bushing 214. Among them, the upper cover plate 211 and the lower cover plate 212 are spaced apart in the first direction, the mandrel 213 is connected between the upper cover plate 211 and the lower cover plate 212, and is connected to the rotation driving mechanism 3 through the bushing 214.

[0048] In this embodiment, the first direction is the vertical direction, that is, the direction of gravity. It can be understood that under the action of gravity, the tungsten electrode 20 will fall to the bottom of the sleeve 221. In order to prevent the replaced tungsten electrode 20 from being damaged when it falls into the sleeve 221 under the action of gravity, the stop post 222 can be set to a structure with a buffering function.

[0049] By way of example and not limitation, the upper cover plate 211 and the lower cover plate 212 of this embodiment are disk structures, and 24 tungsten electrodes 20 are uniformly distributed along the circumferences of the upper cover plate 211 and the lower cover plate 212. Of course, in other embodiments, the upper cover plate 211 and the lower cover plate 212 may also be of other shapes, the number of tungsten electrodes 20 can also be selected according to actual needs, and each tungsten electrode storage member 22 is preferably arranged in a ring shape so that each tungsten electrode 20 can be moved to a preset position and then driven to move by the tungsten electrode moving mechanism 4.

[0050] The rotation driving mechanism 3 and the tungsten electrode moving mechanism 4 are both located in the third accommodation space 103. Figure 4 The schematic diagram of the rotation driving mechanism and the tungsten electrode moving mechanism shown in an embodiment of the present application is shown. The rotation driving mechanism 3 of the present application includes a first driving device 31, which is directly or indirectly connected to the shaft sleeve 214 and drives the mandrel 213 to rotate through the driving shaft sleeve 214, so that the upper cover plate 211 and the lower cover plate 212 rotate. The tungsten electrode moving mechanism 4 includes a second driving device 41 and a lifting device 42 connected to the second driving device 41. The lifting device 42 includes a push rod clamp block 421 and a push rod 422 arranged on the push rod clamp block 421. The second driving device 41 is connected to the push rod clamp block 421 to drive the push rod 422 to move in the first direction.

[0051] Specifically, in combination with Figure 4 , the first driving device 31 of this embodiment is a servo motor, and the rotation driving mechanism 3 further includes a planetary reducer 32 that is drivingly connected to the servo motor. The planetary reducer 32 is connected to the servo motor and the shaft sleeve 214 to transmit the driving force of the servo motor to the mandrel 213, thereby providing a higher reduction ratio and high-precision position control. Of course, in other embodiments, other methods such as a gear reduction motor, a synchronous belt drive, a worm and worm drive, and a direct drive motor can also be used.

[0052] The second driving device 41 of this embodiment is a rodless cylinder, more specifically a magnetic coupling rodless cylinder. The magnetic coupling rodless cylinder is connected to the push rod clamp block 421 through a magnetic platform 410. The push rod 422 is configured to reciprocate up and down in a fixed space in the first direction by the second driving device 41, thereby pushing the stop post 222 to drive the corresponding tungsten electrode to move to the first position, where the first position is a position slightly higher than the upper cover plate 211 in the vertical direction.

[0053] The linear motion of the piston is realized by a magnetic coupling rodless cylinder, eliminating the friction and wear of the rod, thereby reducing the maintenance requirements and increasing the service life. Moreover, a very smooth and precise linear motion can be achieved, which is crucial for the tungsten electrode replacement process that requires high-precision positioning.

[0054] Of course, in other embodiments, a mechanical rodless cylinder or other driving devices may also be adopted to achieve the linear motion of the ejector rod in the first direction.

[0055] The tungsten electrode clamping and discarding mechanism 5 is located in the first accommodating space 101. Specifically, Figure 5 FIG. 5 shows a schematic structural view of the tungsten electrode clamping and discarding mechanism 5 according to an embodiment of the present application. Combining Figure 5 As shown, the tungsten electrode clamping and discarding mechanism 5 includes a third driving device 51, a clamping component 52, and a tungsten electrode storage box 53. The clamping component 52 is disposed above the tungsten electrode storage box 53. After the clamping component 52 is loosened, the tungsten electrode 20 clamped by it will fall into the tungsten electrode storage box 53. In this embodiment, the third driving device 51 is a clamping and loosening cylinder, which connects to and drives the clamping component 52 to clamp or loosen the tungsten electrode provided by the tungsten electrode replacement robot 100 at the second position.

[0056] In an embodiment of the present application, the automatic tungsten electrode replacement device further includes a control mechanism (not shown). The control mechanism is electrically connected to the tungsten electrode clamping and discarding mechanism 5, the rotation driving mechanism 3, and the tungsten electrode moving mechanism 4. In response to the operation or command of the user, the control mechanism can control any one or more of the tungsten electrode clamping and discarding mechanism 5, the rotation driving mechanism 3, and the tungsten electrode moving mechanism 4.

[0057] The tungsten electrode replacement robot 100 in the present application may be a welding torch having the functions of clamping and loosening the tungsten electrode, or a combination of a welding torch and a clamping member having the functions of clamping and loosening the tungsten electrode, with multiple robots working together.

[0058] In one or more embodiments of the present application, the working process of the automatic tungsten electrode replacement device is as follows:

[0059] 1) Preparation stage: The tungsten electrode replacement robot 100 first moves to the tungsten electrode discarding station (the second position) of the tungsten electrode replacement device;

[0060] 2) Tungsten electrode discarding: The tungsten electrode replacement robot 100 inserts the used tungsten electrode 20 into the clamping component 52 of the tungsten electrode clamping and discarding mechanism 5. The tungsten electrode clamping and discarding mechanism 5 uses the third driving device 51 to make the clamping component 52 clamp the tungsten electrode 20 to ensure the stability of the tungsten electrode;

[0061] 3) Tungsten electrode collection: The tungsten electrode replacement robot 100 loosens the tungsten electrode 20. The tungsten electrode clamping and discarding mechanism 5 uses the third driving device 51 again to make the clamping component 52 loosen the tungsten electrode 20. Under the action of gravity, the tungsten electrode 20 falls into the tungsten electrode storage box 53, completing the tungsten electrode collection process;

[0062] 4) Preparation for tungsten electrode top loading: The tungsten electrode replacement robot 100 moves to a suitable position above the tungsten electrode top loading station (the first position), and ensures that the distance between the ceramic nozzle at the front end of the welding torch on the tungsten electrode replacement robot 100 and the replacement device is approximately equal to the distance that the tungsten electrode 20 extends out of the ceramic nozzle;

[0063] 5) Tungsten electrode lifting: The tungsten electrode moving mechanism 4 drives the lifting device 42 to move through the second driving device 41, and the ejector rod 422 ejects a new tungsten electrode 20 to the first position, inserting it into the welding torch of the tungsten electrode 20 replacement robot;

[0064] 6) Tungsten electrode clamping: The tungsten electrode replacement robot 100 clamps the newly lifted tungsten electrode 20, and then leaves the automatic tungsten electrode replacement device to prepare for the next welding operation.

[0065] 7) Tungsten electrode warehouse rotation: Under the action of the rotation driving mechanism 3, the tungsten electrode storage warehouse 2 rotates 15 degrees (when there are 24 tungsten electrodes), converting the next tungsten electrode to the tungsten electrode top-loading station to prepare for the next replacement;

[0066] 8) Circulation process: Repeat the above steps to replace other tungsten electrodes 20 to ensure the continuity and efficiency of the welding process.

[0067] 9) Tungsten electrode management: Regularly, manually or by machine, the used tungsten electrode 20 is taken out from the tungsten electrode storage box 53 of the automatic tungsten electrode replacement device. Then, the still usable tungsten electrode 20 is polished again, and new or qualified polished tungsten electrodes are added to the tungsten electrode storage warehouse 2.

[0068] The above entire working process realizes the automatic replacement of tungsten electrodes, reduces manual intervention, and improves the automation level and efficiency of the welding work. At the same time, due to the reasonable structural design, the robot programming work is simplified and the operation complexity is reduced.

[0069] The above embodiments are only illustrative of the principles and effects of the present invention, and are not used to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. An automatic tungsten electrode replacement device, used to work in conjunction with a tungsten electrode replacement robot, characterized in that: include: A device base, wherein a receiving space is provided in the device base; A tungsten electrode storage warehouse, at least part of which is placed in the accommodating space, the tungsten electrode storage warehouse comprises a rotating assembly and a plurality of tungsten electrode storage members, each of which is configured to store tungsten electrodes, and each of which is arranged on the rotating assembly to rotate with the rotating assembly; A rotation driving mechanism, the rotation driving mechanism is placed in the accommodating space and is configured to drive and connect the rotating assembly; a tungsten electrode moving mechanism, the tungsten electrode moving mechanism being disposed in the accommodating space and configured to move the tungsten electrode in one of the tungsten electrode storage elements to a first position in a first direction; Wherein, the tungsten electrode located at the first position is configured to be replaced by the tungsten electrode replacement robot.

2. The automatic tungsten electrode replacement device according to claim 1, characterized in that: The rotating assembly includes an upper cover plate, a lower cover plate, a spindle and a shaft sleeve. The upper cover plate and the lower cover plate are spaced apart in a first direction, the spindle is arranged between the upper cover plate and the lower cover plate, and the spindle is connected to the rotating drive mechanism through the shaft sleeve.

3. The automatic tungsten electrode replacement device according to claim 2, characterized in that: Each of the tungsten electrode storage components includes a sleeve and a blocking column arranged in the sleeve. Each of the tungsten electrode storage components is arranged between the upper cover plate and the lower cover plate. The tungsten electrode moving mechanism drives the blocking column to drive the corresponding tungsten electrode to move to the first position in the first direction.

4. The automatic tungsten electrode replacement device according to claim 2, characterized in that: The rotation drive mechanism includes a first drive device, which is directly or indirectly connected to the shaft sleeve. The first drive device drives the shaft sleeve to drive the spindle to rotate, so that the upper cover plate and the lower cover plate rotate.

5. The automatic tungsten electrode replacement device according to claim 4, characterized in that: The first driving device is a servo motor, and the rotation driving mechanism also includes a planetary reducer connected to the servo motor. The planetary reducer connects the servo motor and the bushing to transmit the driving force of the servo motor to the spindle to rotate the tungsten electrode storage warehouse through one or more pitches.

6. The automatic tungsten electrode replacement device according to claim 1 or 3, characterized in that: The tungsten pole moving mechanism includes a second driving device and a lifting device connected to the second driving device, the lifting device includes a push rod clamping block and a push rod arranged on the push rod clamping block, and the second driving device is connected to the push rod clamping block to drive the push rod to move in the first direction.

7. The automatic tungsten electrode replacement device according to claim 6, characterized in that: The second driving device is a rodless cylinder, and the rodless cylinder is connected to the ejector clamp block via a slider or a magnetic platform.

8. The automatic tungsten electrode replacement device according to claim 7, characterized in that: The automatic tungsten electrode replacement device also includes a tungsten electrode clamping and discarding mechanism, which is arranged in the accommodating space. The tungsten electrode clamping and discarding mechanism includes a third driving device, a clamp assembly and a tungsten electrode storage box. The clamp assembly is arranged above the tungsten electrode storage box. The third driving device is connected to and drives the clamp assembly to clamp or release the tungsten electrode provided by the tungsten electrode replacement robot at a second position.

9. The automatic tungsten electrode replacement device according to claim 8, characterized in that: The device base includes a first vertical steel plate, a second vertical steel plate, a third vertical steel plate, a first horizontal steel plate, a second horizontal steel plate and a third horizontal steel plate, wherein the first vertical steel plate, the second vertical steel plate and the third vertical steel plate are connected to each other at intervals; and the first vertical steel plate and the third vertical steel plate are connected to each other at intervals. The accommodation space includes a first accommodation space formed by the first vertical steel plate, the second vertical steel plate, the first horizontal steel plate and the second horizontal steel plate, a second accommodation space formed by the second vertical steel plate, the third vertical steel plate, the first horizontal steel plate and the second horizontal steel plate, and a third accommodation space formed by the first vertical steel plate, the third vertical steel plate, the second horizontal steel plate and the third horizontal steel plate; The tungsten electrode clamping and discarding mechanism is located in the first accommodating space, the tungsten electrode storage warehouse is at least partially located in the second accommodating space, and the rotation driving mechanism and the tungsten electrode moving mechanism are located in the third accommodating space.

10. The automatic tungsten electrode replacement device according to claim 1, characterized in that: The automatic tungsten electrode replacement device also includes a control mechanism, which is electrically connected to the tungsten electrode clamping and discarding mechanism, the rotation drive mechanism and the tungsten electrode moving mechanism. The control mechanism is configured to control any one or more of the tungsten electrode clamping and discarding mechanism, the rotation drive mechanism and the tungsten electrode moving mechanism in response to a user's operation or command.

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