Graphite electrode butt joint device and butt joint method

Abstract

The application discloses a graphite electrode butt joint device and a butt joint method, and belongs to the technical field of graphite electrode butt joint, wherein the graphite electrode butt joint device comprises a base plate, the base plate can rotate around a rotation shaft to switch between a horizontal state and a vertical state; a rotating ring is in rotating cooperation with the base plate; a moving ring is arranged along the axis direction of the rotating ring and is in circumferential locking and axial sliding cooperation with the rotating ring; the rotating ring is driven to rotate through the meshing of a gear and a gear ring; since the electrode joint is in thread engagement with the graphite body, during the rotation of the rotating ring, the moving ring and the electrode joint, the moving ring can move along the axis direction of the rotating ring; through the change of the different states of the base plate, on one hand, the electrode joint can be clamped between the two clamping jaws by the staff, and on the other hand, the butt joint of the electrode joint and the graphite body is facilitated.

Description

Technical Field

[0001] This invention relates to the field of graphite electrode docking technology, and particularly to a graphite electrode docking device and docking method. Background Technology

[0002] Graphite electrode docking devices are specialized equipment used in fields such as metal smelting to achieve precise and stable docking between graphite electrodes or between electrodes and connectors.

[0003] Chinese patent CN115864039B discloses a graphite electrode docking device. By arranging clamps at both ends of the electrode connector body, the device maintains uniform force and keeps the electrode connector body in a horizontal state during installation, thereby further improving its stability during docking. At the same time, through the set top pressure component, one of the clamps can automatically detach from the electrode connector body during docking, which is beneficial to the protection of the electrode connector body.

[0004] When using the above-mentioned device, the operator needs to lift the electrode connector to the position to be engaged, which is inconvenient. In addition, the clamping device uses a power unit to drive the gripper to hold the electrode connector, but the electrode connector is rotating during the docking process. This results in high requirements for the arrangement of the power unit that drives the gripper to move, thus increasing the cost of use.

[0005] Therefore, it is necessary to provide a graphite electrode docking device and docking method to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide a graphite electrode docking device and docking method to solve the problem mentioned in the background art that the existing device requires the operator to lift the electrode connector to the position to be engaged, which is inconvenient to operate.

[0007] Based on the above ideas, the present invention provides the following technical solution: a graphite electrode docking device, comprising: A substrate capable of rotating about a pivot axis to switch between a horizontal and a vertical state; A rotating ring is rotatably engaged with the substrate. A movable ring is arranged along the axis of the rotating ring and is circumferentially locked and axially slidingly engaged with the rotating ring; The clamping plate is provided in two sets, and both sets of the clamping plates are arranged through the moving ring in a direction parallel to the axis of the moving ring. One clamping plate is slidably engaged with the moving ring in the circumferential direction of the moving ring, and the other clamping plate is elastically engaged with the moving ring in the diametrical direction of the moving ring. The gripper is installed on the inside of the clamping plate via a connector; The pressure bar is located at the clamping plate that slides radially with the moving ring. During the process of the substrate deflecting from a horizontal state to a vertical state, the pressure bar is subjected to the pressure of the pressing member and pushes the clamping plate along the diameter direction of the moving ring to clamp the electrode connector.

[0008] As a further aspect of the present invention: a through arc-shaped groove is provided on the moving ring along its circumference, and a clamping plate that slides in circumferentially with the moving ring slides within the arc-shaped groove.

[0009] As a further aspect of the present invention: an annular limiting member is sleeved around the rotating ring, and a plate is fixed at the clamping plate that slides circumferentially with the moving ring. The plate is fitted to the outer end face of the limiting member, and a positioning member is elastically connected to the outer end face of the limiting member. One end of the positioning member is set as an inclined surface. Through the cooperation between the plate and the positioning member, the clamping plate that slides circumferentially with the moving ring can only rotate in a single direction.

[0010] As a further aspect of the present invention: a snap-fit ​​assembly is provided at the clamping plate that slides radially with the moving ring. The snap-fit ​​assembly includes a snap-fit ​​member disposed at the arc-shaped groove and capable of elastically engaging with the moving ring along the circumferential direction of the moving ring. A snap-fit ​​groove for inserting and removing the snap-fit ​​member is provided on the clamping plate that slides radially with the moving ring.

[0011] As a further aspect of the present invention: a magnetic sheet is fixedly embedded on the side of the clamp plate that slides circumferentially with the moving ring, and the magnetic attraction between the magnetic sheet and the snap-fit ​​component can cause one end of the snap-fit ​​component to move out of the slot.

[0012] As a further aspect of the present invention: a support frame is provided at the bottom end of the substrate, and the rotating shaft passes through the support frame and rotates in cooperation with it.

[0013] As a further aspect of the present invention: the support frame is provided with a stepped hole for the rotary shaft to pass through, a positioning block is fixed on the outer circumference of the rotary shaft, and two sets of stops are fixed on the inner wall of the stepped hole. When the substrate switches between horizontal and vertical states, the positioning block can respectively fit with the two sets of stops.

[0014] As a further aspect of the present invention: a drive motor is mounted on the substrate, and the drive motor is connected to the rotating ring in a transmission manner.

[0015] As a further aspect of the present invention: two sets of protrusions are fixed on the clamping plate, and the two sets of protrusions are attached to the two ends of the movable ring.

[0016] A docking method using the above-mentioned graphite electrode docking device includes the following steps: driving the substrate to deflect downward to a horizontal state, so that the grippers fit against the outside of the electrode connector; driving the clamping plates that are circumferentially slidingly engaged with the moving ring to rotate, so that the two clamping plates are arranged opposite each other to clamp the electrode connector; driving the substrate to deflect upward to a vertical state, so that the clamped electrode connector can engage with the graphite body.

[0017] Compared with the prior art, the beneficial effects of the present invention are: the rotating ring is driven to rotate by the meshing of the gear and the gear ring. Since the electrode connector and the graphite body are threadedly meshed, the moving ring can move along the axial direction of the rotating ring during the rotation of the rotating ring and the electrode connector. This device, by changing the different states of the substrate, on the one hand, makes it easier for the operator to clamp the electrode connector between the two jaws, and on the other hand, it facilitates the docking of the electrode connector and the graphite body. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the clamping mechanism structure of the present invention; Figure 4 This is a schematic diagram of the connection structure between the moving ring and the rotating ring of the present invention; Figure 5 This is a schematic diagram of the two grippers of the present invention clamping the electrode connector; Figure 6 This is a schematic diagram of the two grippers of the present invention clamping the electrode connector; Figure 7 This is a schematic diagram of the engagement between the snap-fit ​​component and the clamping plate of the present invention; Figure 8 This is the present invention. Figure 1 A magnified structural diagram at point A; Figure 9 This is the present invention. Figure 2 A magnified structural diagram at point B; Figure 10 This is the present invention. Figure 3 A magnified structural diagram at point C; Figure 11 This is a schematic diagram of the card connector and magnetic sheet structure of the present invention; Figure 12 This is a schematic diagram of the first and second protrusions of the present invention engaging. Figure 13 This is a schematic diagram of the positioning block and stop block structure of the present invention.

[0020] In the diagram: 1. Graphite body; 2. Limiting component; 3. Rotating ring; 4. Gear ring; 5. Clamping plate; 501. Connecting component; 502. Protrusion; 6. Gripper; 601. Slide groove; 602. Second protrusion; 7. Electrode connector; 8. Extrusion component; 9. Substrate; 901. Rotating shaft; 9011. Positioning block; 10. Driving component; 11. Moving ring; 1101. Guide rod; 1102. Arc groove; 1103. Straight groove; 12. Gear; 13. Snap-fit ​​component; 1301. Protrusion; 14. Pressure rod; 1401. Spring seat; 15. Plate; 16. Positioning component; 1601. Inclined surface; 17. Limiting component; 1701. First protrusion; 18. Magnetic sheet; 19. Elastic component; 20. Magnetic component; 21. Stop block. Detailed Implementation

[0021] like Figures 1-13 As shown, a graphite electrode docking device includes a substrate 9 that rotates around a pivot axis 901 and an annular rotating ring 3 arranged on the substrate 9. The rotating ring 3 is rotatable relative to the substrate 9 around its own axis. A movable ring 11 is provided at the axis of the rotating ring 3. The movable ring 11 is circumferentially locked and axially slidingly engaged with the rotating ring 3. Two sets of clamping mechanisms are provided on the movable ring 11. The clamping mechanism includes a clamping plate 5, a jaw 6, and a connecting member 501. The connecting member 501 is assembled between the clamping plate 5 and the jaw 6, and the clamping surface of the jaw 6 can be in contact with the surface of the electrode connector 7.

[0022] In actual use, in order to clamp the electrode connector 7, a pressure rod 14 is installed at one of the moving rings 11. One end of the pressure rod 14 passes through the moving ring 11 radially and is in contact with the outer surface of the clamping plate 5. By applying pressure to the pressure rod 14, it is beneficial to clamp the electrode connector 7 between the two jaws 6, thereby facilitating the stable screwing of the electrode connector 7 into the end of the graphite body 1.

[0023] A driving component 10 is provided below the substrate 9. The driving component 10 can be, for example, a hydraulic rod. The telescopic end of the hydraulic rod is hinged to the bottom end of the substrate 9, and the tail end of the hydraulic rod is hinged to the base on the ground. This structure facilitates the switching of the substrate 9 between a horizontal and a vertical state. When the substrate 9 is in a horizontal state, it is convenient for the operator to clamp the electrode connector 7 between the two grippers 6. When the substrate 9 is in a vertical state, it is convenient to rotate the electrode structure to the end of the graphite body 1.

[0024] Combination Figure 1As shown, a gear ring 4 is fixedly sleeved on the rotating ring 3, and a gear 12 meshes with the outer side of the gear ring 4. A drive motor is mounted on the substrate 9, and the output shaft of the drive motor is connected to the gear 12. When the substrate 9 is in a vertical state, the graphite body 1 and the electrode connector 7 are aligned. At this time, moving the graphite body 1 causes one end of the electrode connector 7 to be inserted into the graphite body 1. Then, the rotating ring 3 is driven to rotate through the meshing of the gear 12 and the gear ring 4. Since the electrode connector 7 and the graphite body 1 are threadedly engaged, the moving ring 11 can move along the axial direction of the rotating ring 3 during the rotation of the rotating ring 3, which drives the moving ring 11 and the electrode connector 7. In summary, this device, by changing the different states of the substrate 9, facilitates the operator in clamping the electrode connector 7 between the two grippers 6, and also facilitates the docking of the electrode connector 7 and the graphite body 1.

[0025] As one embodiment of driving the pressure rod 14 to move, a power unit, such as an electric cylinder, can be arranged on the moving ring 11, so that the output end of the power unit is connected to the pressure rod 14 to drive the pressure rod 14 to move along the diameter direction of the moving ring 11. However, since the moving ring 11 is in a rotating state when the electrode connector 7 is docked, the installation structure of the power unit is relatively complex. Based on this, this solution provides another embodiment of driving the pressure rod 14 to move, as follows: A pressing element 8 is provided along the path of the pressure rod 14 as it moves with the substrate 9. It is understood that during the process of the driving member 10 rotating the substrate 9 from a horizontal to a vertical position, the end of the pressure rod 14 away from the moving ring 11 can contact the pressing element 8. The pressure applied to the pressure rod 14 by the pressing element 8 causes the pressure rod 14 to push the adjacent clamping plate 5 to move and clamp the electrode connector 7. Figures 5-6 As shown, in the vertical state, the upper conical surface of the electrode connector 7 is denoted as surface a, and the lower conical surface is denoted as surface b. In actual use, if the gripper 6 is attached to surface a, it is difficult for the gripper 6 to stably grip the electrode connector 7 during the upward rotation of the substrate 9 from the horizontal state. Therefore, in this solution, when the gripper 6 grips the electrode connector 7, it is attached to the lower conical surface of the electrode connector 7. By utilizing the cooperation between the conical surface of the electrode connector 7 and the gripper 6, the gripper 6 can "lift" the electrode connector 7 during the upward deflection of the substrate 9 from the horizontal state. Specifically, in this embodiment, both sets of clamping plates 5 are arranged through the moving ring 11 along a direction parallel to the axis of the moving ring 11. The only difference is that one clamping plate 5 is circumferentially sliding and radially locked with the moving ring 11, while the other clamping plate 5 is circumferentially locked and radially sliding with the moving ring 11. See the specific reference. Figure 2 As shown.

[0026] from Figure 11As can be seen, the movable ring 11 has a through arc-shaped groove 1102 along its circumference, and the clamping plate 5, which slides circumferentially and locks radially with the movable ring 11, slides within the arc-shaped groove 1102. This structure limits the range of sliding of the clamping plate 5 relative to the movable ring 11 along its circumference. Figure 7 As shown, a straight groove 1103 is provided on the moving ring 11 along its diameter direction, and the clamping plate 5, which is circumferentially locked and radially slidably engaged with the moving ring 11, slides within the straight groove 1103.

[0027] Furthermore, combined Figure 1 , Figure 8 As shown, an annular limiting member 2 is sleeved on the outer side of the gear ring 4. The limiting member 2 is fixedly connected to the base plate 9. A crossbar is provided at the clamping plate 5 that is circumferentially sliding with the moving ring 11. The crossbar is fixedly connected to the clamping plate 5, and a plate 15 is fixed at the end of the crossbar. The plate 15 is fitted to the outer end face of the limiting member 2. A positioning member 16 is elastically connected to the outer end face of the limiting member 2 along a direction parallel to its axis. One end of the positioning member 16 is set as an inclined surface 1601. Through this structure, the rotation direction of the clamping plate 5 that is circumferentially sliding with the moving ring 11 can be controlled. That is, when the plate 15 contacts the vertical surface of the limiting member 2 (the side away from the inclined surface 1601), the rotating ring 3 can only drive the plate 15 to rotate in a single direction.

[0028] Furthermore, a locking assembly is provided at the clamping plate 5 that radially slides with the moving ring 11. This locking assembly is configured to lock the clamping plate 5 in a clamping state, thereby facilitating the stable clamping of the electrode connector 7 by the two clamping plates 5. Combined with... Figure 4 , Figure 7 as well as Figure 11 As shown, the snap-fit ​​assembly includes a snap-fit ​​member 13 disposed at the arc-shaped groove 1102 and capable of elastically engaging with the moving ring 11 along the circumferential direction of the moving ring 11. The clamping plate 5 located at the snap-fit ​​member 13 is provided with a slot for inserting and removing the snap-fit ​​member 13. When the pressure rod 14 pushes the clamping plate 5 to clamp the electrode connector 7, one end of the snap-fit ​​member 13 can align with the slot on the clamping plate 5 and be inserted into the slot to lock the clamping plate 5 and the moving ring 11.

[0029] from Figure 11 As can be seen, a magnetic sheet 18 is fixedly embedded on the side of the clamping plate 5 that slides in circumferentially with the moving ring 11. Correspondingly, a magnet can be fixedly embedded at the end of the aforementioned snap-fit ​​member 13, and the side of the magnet opposite to the magnetic sheet 18 has different magnetic poles.

[0030] During the screwing process, the substrate 9 is in the position as Figure 2In the vertical position shown, the graphite body 1 is pushed towards the electrode connector 7, so that the electrode connector 7 and the graphite body 1 are in a ready-to-engage state; the engagement of the gear 12 and the gear ring 4 drives the rotating ring 3 along... Figure 2 Rotating in the direction X (counterclockwise), since the end of the arc groove 1102 is in contact with the clamping plate 5, during the rotation of the rotating ring 3 and the rotating ring 11, the moving ring 11 can synchronously drive the two clamping plates 5 to rotate. During the rotation of the electrode connector 7 driven by the clamping mechanism, the electrode connector 7 can mesh with the graphite body 1 and drive the moving ring 11 to move relative to the rotating ring 3 along its own axis. After the electrode connector 7 meshes with the graphite body 1, the graphite body 1 and the electrode connector 7 at its end can be removed from the clamping mechanism. At this time, the meshing of gear 12 and gear ring 4 drives the moving ring 11 to rotate clockwise. When the base plate 9 with magnetic sheet 18 contacts the side of the positioning member 16 away from the inclined surface 1601, the clamping plate 5 remains stationary. As the moving ring 11 continues to rotate, the two clamping plates 5 will gradually approach each other and engage. Figure 11 As shown, when one end of the latching member 13 moves to the magnetic plate 18, the magnetic plate 18 attracts the latching member 13, causing it to move away from the mating clamp 5. This causes one end of the latching member 13 to move out of the slot, thereby unlocking the clamp 5 located at the pressure rod 14, and the two clamps 5 are in a position as shown. Figure 5 In the state shown, as the driving member 10 drives the substrate 9 to deflect downwards to a horizontal position, the grippers 6 at the two clamping plates 5 can engage with the conical surface of the lower half of the electrode connector 7. When the gear 12 meshes with the gear ring 4, it drives the moving ring 11 to rotate counterclockwise again (i.e., Figure 5 The clamping plate 5, which is radially slidingly engaged with the moving ring 11 (in the direction Y), will rotate synchronously with the moving ring 11 and gradually move away from the other clamping plate 5 until the two clamping plates 5 are in a position as shown in the figure. Figure 6 In the relative state shown, the clamping plate 5, which is radially slidingly engaged with the moving ring 11, is aligned with the extruder 8. Subsequently, during the process of the driving member 10 driving the substrate 9 to deflect upward to a vertical state, the pressure rod 14 is pressed by the extruder 8 to make the clamping plate 5 clamp the electrode connector 7. When the snap-fit ​​member 13 is aligned with the slot, the clamping plate 5 can be locked by the snap-fit ​​member 13.

[0031] This method facilitates the clamping of the electrode connector 7, and no additional power unit is required during the entire clamping process. This makes the overall structure of the device simpler and easier to operate, avoiding the structural redundancy and high cost of traditional equipment.

[0032] After the electrode connector 7 is fully screwed into the graphite body 1, since the clamping plate 5 is still holding the electrode connector 7, directly removing the electrode connector 7 from the clamping mechanism may damage it. Based on this, this solution improves the connection method between the connector 501 and the gripper 6, as follows: The connector 501 is fixedly connected to the clamping plate 5, and the gripper 6 is provided with a sliding groove 601 for the connector 501 to pass through. It should be noted that since the outer surface of the gripper 6 is arc-shaped and its center is on the axis of the moving ring 11, the arc-shaped groove 1102 is located on the outer surface of the gripper 6; the gripper 6 has a hollow internal structure, and two sets of arc-shaped plate-like limiting parts 17 are fixed on the connector 501, and the two sets of limiting parts 17 are respectively located on the inner and outer sides of the gripper 6, combined with Figure 10 As shown, at least one set of first protrusions 1701 are fixed on the inner side of the limiting part 17 located outside the gripper 6, while a second protrusion 602 that mates with the first protrusions 1701 is fixed on the outer surface of the gripper 6. When the first protrusion 1701 and the second protrusion 602 overlap, the gripper 6 moves to its limit position relative to the connecting member 501; from Figure 12 As can be seen, an elastic element 19 is fixed at the limiting part 17 located inside the gripper 6. The elastic element 19 can be, for example, an elastic telescopic rod or a spring. Furthermore, combined Figure 6 As shown, magnetic components 20 are fixedly embedded on the opposite sidewalls of the two grippers 6. The magnetic components 20 can be magnets, and the opposite sides of the two magnetic components 20 have the same magnetic poles. During the screwing process of the electrode connector 7, the moving ring 11 moves along... Figure 2 Rotating in the direction X shown, at this time, the connector 501 contacts the end face of the slide groove 601 and can stably push the gripper 6 to rotate. After the electrode connector 7 is docked, the driving moving ring 11 rotates in the opposite direction. Figure 2 During the rotation in the X direction, the connector 501 can move within the slide groove 601 and cause the first protrusion 1701 and the second protrusion 602 to be misaligned. Under the pressure of the elastic member 19, the gripper 6 can be moved away from the electrode connector 7 relative to the connector 501, which is beneficial for the electrode connector 7 to disengage from the clamping mechanism. Later, as the two grippers 6 approach each other, the repulsive force between the magnetic members 20 on the two grippers 6 can cause the two grippers 6 to move away from each other, so that the first protrusion 1701 and the second protrusion 602 can be realigned, which is beneficial for the subsequent clamping of the electrode connector 7.

[0033] Of course, to simplify the structure, an electromagnet can be installed on the limiting part 17 located outside the gripper 6, and a magnetic unit is fixedly embedded on the outer surface of the gripper 6. The position of the gripper 6 can be adjusted by the attraction or repulsion between the two to release the electrode connector 7. In this embodiment, the connector 501 can move relative to the slide groove 601 in a direction parallel to the diameter of the moving ring 11.

[0034] A support frame is provided at the bottom of the substrate 9. The rotating shaft 901 passes through the support frame and rotates with it. The extrusion member 8 is fixed to the ground by a vertical rod. It should be noted that the extrusion member 8 can be an arc-shaped rod or an inclined straight rod, as long as it can apply pressure to the pressure rod 14 along its movement path. The bottom end of the pressure rod 14 has a spherical structure, which is more conducive to the cooperation between the pressure rod 14 and the extrusion member 8. Figure 1 , Figure 13 As shown, the support frame is provided with a stepped hole for the rotary shaft 901 to pass through. Specifically, a positioning block 9011 is fixed on the outer circumference of the rotary shaft 901, and two sets of stops 21 are fixed on the inner wall of the stepped hole. When the driving member 10 drives the base plate 9 to switch between horizontal and vertical states, the positioning block 9011 can fit with the two sets of stops 21 respectively.

[0035] Combination Figure 1 As shown, the limiting member 2 is provided with an opening for the gear 12 to pass through, which facilitates the meshing of the gear 12 with the gear ring 4.

[0036] Combination Figure 2 As shown, two sets of protrusions 502 are fixed on the clamping plate 5. These two sets of protrusions 502 are attached to both ends of the moving ring 11, thereby facilitating the limiting of the clamping plate 5 along the axial direction of the moving ring 11. Combined with... Figures 2-3 As shown, the substrate 9 is provided with a slot to avoid interference between the substrate 9 and the extruder 8 when the substrate 9 rotates.

[0037] Combination Figure 4 As shown, at least one set of guide blocks is fixed to the outer wall of the moving ring 11, while a guide groove corresponding to the guide block is formed on the inner wall of the rotating ring 3, allowing the guide block to slide within the guide groove. A guide rod 1101 is fixed to the guide block, and the guide rod 1101 passes through the end of the guide groove and slides with it. It should be noted that the cross-section of the guide rod 1101 along its own axis is T-shaped, thereby preventing the moving ring 11 from separating from the rotating ring 3. Of course, a spring can be arranged between the guide block and the end of the guide groove.

[0038] Combination Figure 7As shown, the movable ring 11 is provided with a mounting groove that slides with the snap-fit ​​member 13. The cross-section of the mounting groove is approximately "+" shaped. A limit spring is provided between the fixed protrusion 1301 on the snap-fit ​​member 13 and the end face of the mounting groove to achieve elastic cooperation between the snap-fit ​​member 13 and the movable ring 11.

[0039] Combination Figure 8 As shown, the end face of the limiting member 2 is provided with a groove for the positioning member 16 to slide, and a first spring is fixed between the inner end face of the groove and the positioning member 16. During the process of screwing the electrode connector 7, the plate 15 contacts the inclined surface 1601 on the positioning member 16 and can compress the positioning member 16 into the limiting member 2.

[0040] Combination Figure 9 As shown, a spring seat 1401 is fixed on the pressure rod 14, and a second spring is fixed between the spring seat 1401 and the outer circumferential surface of the moving ring 11 to achieve elastic cooperation between the pressure rod 14 and the moving ring 11.

[0041] Combination Figure 12 As shown, a positioning post can be provided on one side of the elastic member 19, and the positioning post is fixedly connected to the limiting part 17 on the inner side of the gripper 6. When the first protrusion 1701 and the second protrusion 602 are aligned, the positioning post can contact the top wall of the inner cavity of the gripper 6 to limit the position between the gripper 6 and the connecting member 501.

[0042] The above-disclosed examples are merely preferred embodiments of this application, intended to facilitate understanding and implementation by those skilled in the art. However, they cannot be used to limit the scope of this application. Therefore, equivalent variations made within the scope of this application are still within the scope of this application.

Claims

1. A graphite electrode docking device, characterized in that, include: The substrate (9) is rotatable about a pivot (901) to switch between a horizontal state and a vertical state; The rotating ring (3) is rotatably engaged with the substrate (9); The movable ring (11) is arranged along the axis of the rotating ring (3) and is circumferentially locked and axially slidingly engaged with the rotating ring (3); The clamping plate (5) is provided in two sets, and both sets of the clamping plates (5) are arranged to pass through the moving ring (11) in a direction parallel to the axis of the moving ring (11). One clamping plate (5) is slidably engaged with the moving ring (11) in the circumferential direction of the moving ring (11), and the other clamping plate (5) is elastically engaged with the moving ring (11) in the diametrical direction of the moving ring (11). The gripper (6) is installed on the inner side of the clamping plate (5) via the connector (501); The pressure bar (14) is located at the clamping plate (5) which is radially slidingly engaged with the moving ring (11). During the process of the substrate (9) deflecting from a horizontal state to a vertical state, the pressure bar (14) is subjected to the pressure of the pressing member (8) and pushes the clamping plate (5) along the diameter direction of the moving ring (11) to clamp the electrode connector (7).

2. The graphite electrode docking device according to claim 1, characterized in that: The moving ring (11) has a through arc groove (1102) along its circumference, and the clamping plate (5) that slides in circumferentially with the moving ring (11) slides in the arc groove (1102).

3. The graphite electrode docking device according to claim 2, characterized in that: The rotating ring (3) is surrounded by an annular limiting member (2). A plate (15) is fixed at the clamping plate (5) that slides circumferentially with the moving ring (11). The plate (15) is attached to the outer end face of the limiting member (2). A positioning member (16) is elastically connected to the outer end face of the limiting member (2). One end of the positioning member (16) is set as an inclined surface (1601). Through the cooperation of the plate (15) and the positioning member (16), the clamping plate (5) that slides circumferentially with the moving ring (11) can only rotate in a single direction.

4. The graphite electrode docking device according to claim 3, characterized in that: A snap-fit ​​assembly is provided at the clamping plate (5) that slides radially with the moving ring (11). The snap-fit ​​assembly includes a snap-fit ​​member (13) located at the arc groove (1102) and capable of elastically engaging with the moving ring (11) along the circumferential direction of the moving ring (11). The clamping plate (5) that slides radially with the moving ring (11) is provided with a slot for inserting and removing the snap-fit ​​member (13).

5. A graphite electrode docking device according to claim 4, characterized in that: A magnetic sheet (18) is fixedly embedded on the side of the clamp (5) that slides circumferentially with the moving ring (11). The magnetic attraction between the magnetic sheet (18) and the snap-fit ​​(13) can cause one end of the snap-fit ​​(13) to move out of the slot.

6. The graphite electrode docking device according to claim 1, characterized in that: A support frame is provided at the bottom of the substrate (9), and the rotating shaft (901) passes through the support frame and rotates with it.

7. A graphite electrode docking device according to claim 6, characterized in that: The support frame is provided with a stepped hole for the rotary shaft (901) to pass through. A positioning block (9011) is fixed on the outer circumference of the rotary shaft (901). Two sets of stops (21) are fixed on the inner wall of the stepped hole. When the base plate (9) switches between horizontal and vertical states, the positioning block (9011) can fit with the two sets of stops (21) respectively.

8. A graphite electrode docking device according to claim 1, characterized in that: A drive motor is mounted on the substrate (9), and the drive motor is connected to the rotating ring (3) in a transmission manner.

9. A graphite electrode docking device according to claim 1, characterized in that: Two sets of protrusions (502) are fixed on the clamp (5), and the two sets of protrusions (502) are attached to the two ends of the moving ring (11).

10. A docking method using a graphite electrode docking device as described in any one of claims 1-9, characterized in that, The process includes the following steps: driving the substrate (9) to deflect downwards to a horizontal state, so that the gripper (6) fits against the outside of the electrode connector (7); driving the clamping plate (5) which is circumferentially slidingly engaged with the moving ring (11) to rotate, so that the two clamping plates (5) are positioned opposite each other to clamp the electrode connector (7); driving the substrate (9) to deflect upwards to a vertical state, so that the clamped electrode connector (7) can engage with the graphite body (1).

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