Graphite electrode automatic clamping mechanism

Abstract

This utility model discloses an automatic clamping mechanism for graphite electrodes, belonging to the field of metallurgical tooling technology. It includes a first clamping claw and a second clamping claw rotatably connected to each other. A pin is installed between the first and second clamping claws. A second connecting rod and a first connecting rod are rotatably mounted on the top ends of the first and second clamping claws respectively via the pin. An installation rod is rotatably inserted into the top ends of the first and second connecting rods. Positioning rods are provided at both ends of the installation rods. Magnetic attraction mechanisms for connecting the positioning rods are fixed at both ends of the pin. This automatic clamping mechanism for graphite electrodes facilitates automatic clamping and fixing of graphite electrodes, improving the convenience of clamping and fixing. A strong magnet attracts the magnetic metal rod, causing it to insert into a groove, so that the first and second clamping claws are in an open state during the upward movement, facilitating the lowering of the clamped graphite electrode.

Description

Technical Field

[0001] This utility model belongs to the field of metallurgical tooling technology, specifically relating to an automatic clamping mechanism for graphite electrodes. Background Technology

[0002] my country's metallurgical industry has developed rapidly, especially in the production of graphite electrodes, which has exceeded half of the world's output. The production of graphite electrodes and the improvement of production efficiency are extremely important, making the handling equipment used in the application of graphite electrodes particularly important.

[0003] Patent application number CN202221780010.8 discloses a graphite electrode claw comprising at least two parallel lifting branches. Each lifting branch includes a set of hinged connecting rods. The lower end of each connecting rod is respectively hinged to a left clamping claw and a right clamping claw. The middle part of the left clamping claw is hinged to the middle part of the right clamping claw. The lower part of the left clamping claw is hinged to an upwardly inclined claw-lifting limiting plate. The other end of the claw-lifting limiting plate has a slot. The lower part of the right clamping claw, which is directly opposite the slot, is provided with a limiting shaft. The two lifting branches are connected as one unit by a pin passing through the connecting rod. The upper ends of the two lifting branches are connected to lifting rings. This device uses the lever principle to form a tool for clamping the electrode. The setting of the limiting bolt and the claw-lifting limiting plate ensures that the device is in a ready-to-use state after use. When used again, the graphite electrode can be clamped without manually prying open the clamping claws. It is suitable for industrial production and has strong practicality.

[0004] The existing graphite electrode claws can automatically clamp the electrodes during operation, but manual operation is still required when the clamping claws are detached from the electrodes, resulting in poor convenience of removing the graphite electrode claws. Utility Model Content

[0005] (1) Technical problems to be solved In view of the shortcomings of the prior art, the purpose of this utility model is to provide an automatic clamping mechanism for graphite electrodes. This automatic clamping mechanism for graphite electrodes aims to solve the technical problem that in the prior art, when the clamping claws are disengaged from the electrode, the operator still needs to perform manual operation.

[0006] (2) Technical solution To solve the above-mentioned technical problems, this utility model provides an automatic clamping mechanism for graphite electrodes, including a first clamping claw and a second clamping claw that are rotatably connected to each other. A pin is installed between the first clamping claw and the second clamping claw. A second connecting rod and a first connecting rod are respectively rotatably installed at the top ends of the first clamping claw and the second clamping claw via the pin. An installation rod is rotatably inserted into the top ends of the first connecting rod and the second connecting rod. A positioning rod is provided at both ends of the installation rod. A magnetic attraction mechanism for connecting the positioning rod is fixed at both ends of the pin.

[0007] When using this technical solution, a first clamping claw and a second clamping claw are rotatably connected to each other. As the first connecting rod and the second connecting rod move downwards continuously, the first clamping claw and the second clamping claw are in an open state and fitted onto the graphite electrode. As the lifting ring drives the first connecting rod and the second connecting rod to move upwards continuously, the first clamping claw and the second clamping claw clamp and fix the graphite electrode, which facilitates automatic clamping and fixing of the graphite electrode and improves the convenience of clamping and fixing the graphite electrode. By installing a positioning rod on the moving rod, when the graphite electrode is lowered, the magnetic metal rod on the positioning rod moves to one side of the protruding rod, and the strong magnet attracts the magnetic metal rod, so that the magnetic metal rod is inserted into the groove. The bottom end of the positioning rod supports the first clamping claw and the second clamping claw, so that the first clamping claw and the second clamping claw are always in an open state during the upward movement of the clamping mechanism, thereby lowering the clamped graphite electrode. The first clamping claw and the second clamping claw are in an open state during the upward movement, which facilitates the lowering of the clamped graphite electrode.

[0008] Preferably, the bottom ends of the first clamping claw and the second clamping claw, which have an arc-shaped structure, are fixed with anti-slip protrusions, and the bottom ends of the two positioning rods are fixed with magnetic metal rods.

[0009] Furthermore, the magnetic attraction mechanism includes a protruding rod fixed to the side wall of the pin and a strong magnet. The side wall of the protruding rod is provided with a groove for accommodating the magnetic metal rod, and the strong magnet is embedded and fixed in the inner wall of the groove.

[0010] Furthermore, a lifting ring is fixed to the top of the mounting rod, and a sealed cavity is provided at the center of the mounting rod.

[0011] Furthermore, both ends of the sealed cavity are fitted with movable rods, and the top end of the positioning rod is sleeved and fixed on the movable rod.

[0012] Furthermore, a miniature high-pressure air pump is fixedly installed at the top of the second connecting rod, and a hose is fixed to the miniature high-pressure air pump.

[0013] Furthermore, the hose is fixedly connected to the outer wall of the mounting rod, and the hose is connected to the sealed cavity.

[0014] (3) Beneficial effects Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model features a first clamping claw and a second clamping claw that are rotatably connected to each other. As the first connecting rod and the second connecting rod move downwards continuously, the first clamping claw and the second clamping claw are in an open state and fitted onto the graphite electrode. As the lifting ring drives the first connecting rod and the second connecting rod to move upwards continuously, the first clamping claw and the second clamping claw clamp and fix the graphite electrode, which facilitates automatic clamping and fixing of the graphite electrode and improves the convenience of clamping and fixing the graphite electrode. By installing a positioning rod on the moving rod, when the graphite electrode is lowered, the magnetic metal rod on the positioning rod moves to one side of the protruding rod, and the strong magnet attracts the magnetic metal rod, causing the magnetic metal rod to insert into the groove. The bottom end of the positioning rod supports the first clamping claw and the second clamping claw, so that the first clamping claw and the second clamping claw are always in an open state during the upward movement of the clamping mechanism, thereby lowering the clamped graphite electrode. The first clamping claw and the second clamping claw are in an open state during the upward movement, which facilitates the lowering of the clamped graphite electrode. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A; Figure 3 This is a cross-sectional view of the mounting rod in this utility model; Figure 4 This is a schematic diagram of the graphite electrode clamping state structure in this utility model; Figure 5 This is a schematic diagram of the graphite electrode in the loosened state in this utility model.

[0017] The markings in the attached diagram are as follows: 1. First clamping claw; 2. Second clamping claw; 3. First connecting rod; 4. Lifting ring; 5. Second connecting rod; 6. Positioning rod; 7. Anti-slip protrusion; 8. Pin; 9. Strong magnet; 10. Groove; 11. Protruding rod; 12. Mounting rod; 13. Sealed cavity; 14. Moving rod; 15. Hose; 16. Miniature high-pressure air pump. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] This specific embodiment is an automatic clamping mechanism for graphite electrodes, and its structural schematic diagram is shown below. Figure 1 and Figure 2 As shown, it includes a first clamping claw 1 and a second clamping claw 2 that are rotatably connected to each other. A pin 8 is installed between the first clamping claw 1 and the second clamping claw 2. A second connecting rod 5 and a first connecting rod 3 are respectively rotatably installed on the top ends of the first clamping claw 1 and the second clamping claw 2 through the pin 8. An installation rod 12 is rotatably inserted into the top ends of the first connecting rod 3 and the second connecting rod 5. A positioning rod 6 is provided at both ends of the installation rod 12. A magnetic attraction mechanism for connecting the positioning rod 6 is fixed at both ends of the pin 8.

[0020] The bottom ends of the first clamping claw 1 and the second clamping claw 2, which have an arc-shaped structure, are fixed with anti-slip protrusions 7. The bottom ends of the two positioning rods 6 are fixed with magnetic metal rods 17. The magnetic attraction mechanism includes a protruding rod 11 fixed to the side wall of the pin shaft 8 and a strong magnet 9. The side wall of the protruding rod 11 is provided with a groove 10 for accommodating the magnetic metal rod 17. The strong magnet 9 is embedded and fixed in the inner wall of the groove 10. The first clamping claw 1 and the second clamping claw 2 are in an open state and are sleeved on the graphite electrode as the first connecting rod 3 and the second connecting rod 5 continue to move downward. As the lifting ring 4 drives the first connecting rod 3 and the second connecting rod 5 to move upward, the first clamping claw 1 and the second clamping claw 2 clamp and fix the graphite electrode, which facilitates automatic clamping and fixing of the graphite electrode and improves the convenience of clamping and fixing the graphite electrode.

[0021] like Figures 3 to 5 As shown, a lifting ring 4 is fixed to the top of the mounting rod 12, and a sealing cavity 13 is formed at the center of the mounting rod 12. Moving rods 14 are inserted into both ends of the sealing cavity 13. The top of the positioning rod 6 is sleeved and fixed on the moving rod 14. A sealing piston is fixedly installed at the end of the moving rod 14 that extends into the sealing cavity. A miniature high-pressure air pump 16 is fixedly installed at the top of the second connecting rod 5. A hose 15 is fixed to the miniature high-pressure air pump 16. A battery for supplying power to the miniature high-pressure air pump 16 and a switch (not shown in the figure) for controlling the miniature high-pressure air pump 16 are installed on the second connecting rod 5. The hose 15 is fixedly connected to the outer wall of the mounting rod 12, and the hose 15 is also fixed to the sealing cavity. When the graphite electrode is lowered, the magnetic metal rod 17 on the positioning rod 6 moves to one side of the protrusion 11. The strong magnet 9 attracts the magnetic metal rod 17, causing it to be inserted into the groove 10. The bottom end of the positioning rod 6 supports the first clamping claw 1 and the second clamping claw 2, so that the first clamping claw 1 and the second clamping claw 2 are always open during the upward movement of the clamping mechanism, thereby lowering the clamped graphite electrode. The first clamping claw 1 and the second clamping claw 2 are open during the upward movement, making it easier to lower the clamped graphite electrode.

[0022] Working principle: When using the device of this technical solution, during hoisting, the miniature high-pressure air pump 16 is started to inject air into both sides of the sealed cavity 13 through the hose 15, so that the positioning rod 6 is located on both sides of the protrusion 11, and the first clamping claw 1 and the second clamping claw 2 are sleeved on the graphite electrode. (The air pressure in the sealed cavity 13 prevents the positioning rod 6 from moving inward, so the strong magnet 9 cannot pull the magnetic metal rod 17 into the groove 10). After hoisting, when lowering the graphite electrode, the miniature high-pressure air pump 16 is turned off, allowing the air in the sealed cavity 13 to pass through the hose 15 and the miniature high-pressure air pump 16. 6 is connected to the outside. After the graphite electrode is put down, the first connecting rod 3 and the second connecting rod 5 continue to move downward, and the first clamping claw 1 and the second clamping claw 2 are in an open state until the magnetic metal rod 17 on the positioning rod 6 moves to one side of the protrusion 11. The strong magnet 9 attracts the magnetic metal rod 17, so that the magnetic metal rod 17 is inserted into the groove 10. The bottom end of the positioning rod 6 supports the first clamping claw 1 and the second clamping claw 2, so that the first clamping claw 1 and the second clamping claw 2 are always in an open state during the upward movement of the clamping mechanism, thereby putting down the clamped graphite electrode.

[0023] All technical features in this embodiment can be freely combined according to actual needs.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic graphite electrode clamping mechanism, characterized by, The device includes a first clamping claw (1) and a second clamping claw (2) that are rotatably connected to each other. A pin (8) is installed between the first clamping claw (1) and the second clamping claw (2). A second connecting rod (5) and a first connecting rod (3) are respectively rotatably installed on the top ends of the first clamping claw (1) and the second clamping claw (2) through the pin (8). An installation rod (12) is rotatably inserted into the top ends of the first connecting rod (3) and the second connecting rod (5). A positioning rod (6) is provided at both ends of the installation rod (12). A magnetic attraction mechanism for connecting the positioning rod (6) is fixed at both ends of the pin (8).

2. The automatic graphite electrode clamping mechanism according to claim 1, wherein The bottom ends of the first clamping claw (1) and the second clamping claw (2) are both fixed with anti-slip protrusions (7) in an arc-shaped structure, and the bottom ends of the two positioning rods (6) are both fixed with magnetic metal rods (17).

3. The automatic graphite electrode clamping mechanism according to claim 2, wherein The magnetic attraction mechanism includes a protruding rod (11) fixed to the side wall of the pin (8) and a strong magnet (9). The side wall of the protruding rod (11) is provided with a groove (10) for accommodating the magnetic metal rod (17). The strong magnet (9) is embedded and fixed in the inner wall of the groove (10).

4. The automatic graphite electrode clamping mechanism according to claim 1, wherein The top end of the mounting rod (12) is fixed with a lifting ring (4), and a sealed cavity (13) is provided at the center of the mounting rod (12).

5. The automatic graphite electrode clamping mechanism according to claim 4, wherein Both ends of the sealed cavity (13) are fitted with movable rods (14), and the top end of the positioning rod (6) is sleeved and fixed on the movable rod (14).

6. The automatic graphite electrode clamping mechanism according to claim 5, wherein A miniature high-pressure air pump (16) is fixedly installed at the top of the second connecting rod (5), and a hose (15) is fixed on the miniature high-pressure air pump (16).

7. The automatic graphite electrode clamping mechanism according to claim 6, wherein The hose (15) is fixedly connected to the outer wall of the mounting rod (12), and the hose (15) is connected to the sealing cavity (13).

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