High-precision positioning clamp for machining graphite electrode connector

Abstract

The utility model belongs to the technical field of positioning fixtures, and particularly relates to a high-precision positioning fixture for processing graphite electrode joints, which comprises a rectangular box, a clamping component is arranged in the rectangular box, the clamping component comprises an H-shaped plate and a lower transverse plate which are arranged in the rectangular box, two symmetrically arranged clamping plates are arranged in the rectangular box, and the H-shaped plate and the lower transverse plate are arranged in the rectangular box. An inclined plate is inserted into a groove formed in the bottom end of each clamping plate, and the other end of each inclined plate is inserted into an H-shaped plate. By means of sliding fit of an optical shaft and an inclined section of a lower connecting plate, linkage of a lower transverse plate and an H-shaped plate is achieved, clamping plates are driven to move oppositely, the two ends of a graphite electrode connector are accurately clamped, it is guaranteed that clamping force is uniform and stable, and connector displacement or damage caused by improper clamping is avoided; hindrance generated during grinding of the graphite electrode connector is avoided, the positioning process is simplified, and the operation efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of positioning fixture technology, specifically relating to a high-precision positioning fixture for processing graphite electrode connectors. Background Technology

[0002] Graphite electrodes are high-temperature resistant graphite conductive materials made from petroleum coke and pitch coke as aggregates and coal tar pitch as binders through processes such as raw material calcination, crushing and grinding, batching, mixing, molding, roasting, impregnation, graphitization, and machining. The carbon industry belongs to the basic materials industry, which is essentially a deep processing of waste materials from the petrochemical and coal chemical industries. As the leading product of the carbon industry, graphite electrodes are the main driver of the performance growth of high-efficiency products.

[0003] According to the public announcement (CN213037246U), a graphite electrode clamp is disclosed. This technology discloses a technical solution in which "a main arm is fixedly connected to the bottom of the hanger, a rotating shaft is hinged to the outer surface of the main arm, a secondary arm is movably connected to the surface of the rotating shaft, and a vertical rod is fixedly connected to the bottom of the main arm and the secondary arm, etc. This solution has the technical effect of inserting one end of the graphite electrode connector into the plug when clamping the graphite electrode, and fixing the hose clamp appropriately, and then rotating the plug on the secondary arm through the rotating shaft to fix the other end of the graphite electrode connector".

[0004] Although the design has the technical effect of inserting one end of the graphite electrode connector into the plug when clamping the graphite electrode, and properly fixing the hose clamp, and then rotating the plug on the secondary boom to fix the other end of the graphite electrode connector via the rotating shaft, this process involves multiple steps and is complicated. It not only consumes a lot of time and increases the labor intensity of operators, but is also prone to errors due to the many steps, resulting in low clamping efficiency and making it difficult to meet the needs of large-scale production.

[0005] To address this issue, a high-precision positioning fixture for machining graphite electrode connectors was designed and manufactured. Utility Model Content

[0006] To address the problems mentioned in the background section, this invention provides a high-precision positioning fixture for processing graphite electrode connectors, which effectively solves the problems described in the background section.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-precision positioning fixture for processing graphite electrode connectors, comprising a rectangular box, wherein a clamping assembly is provided inside the rectangular box, the clamping assembly comprising an H-shaped plate and a lower horizontal plate disposed inside the rectangular box, and two symmetrically arranged clamping plates disposed inside the rectangular box, wherein an inclined plate is inserted into a groove at the bottom end of each clamping plate, the other end of the inclined plate is inserted into the H-shaped plate, a lower connecting plate is fixedly connected to the bottom end of the lower horizontal plate, a rectangular plate is inserted into a horizontal groove starting from one side of the rectangular box, and an upper horizontal plate is fixedly connected to the sides of the two clamping plates that are far apart from each other.

[0008] As a preferred high-precision positioning fixture for processing graphite electrode connectors according to this utility model, the upper horizontal plate is inserted into a rectangular groove opened on the surface of the rectangular box, the upper horizontal plate and the rectangular box are slidably connected, the H-shaped plate and the lower horizontal plate are both slidably connected to the rectangular box, and the lower horizontal plate is located below the H-shaped plate.

[0009] As a preferred high-precision positioning fixture for processing graphite electrode connectors according to this utility model, the two ends of the inclined plate are respectively rotatably connected to the clamping plate and the H-shaped plate through shaft pins.

[0010] As a preferred high-precision positioning fixture for processing graphite electrode connectors according to this utility model, an L-shaped rod is fixedly connected to one side of the rectangular box, an electric push rod is installed on the upper surface of the L-shaped rod, the end of the output shaft of the electric push rod is fixedly connected to one end of the rectangular plate, and the rectangular plate and the rectangular box are slidably connected.

[0011] As a preferred high-precision positioning fixture for processing graphite electrode connectors according to this utility model, a middle connecting plate is fixedly connected between the H-shaped plate and the lower horizontal plate, an optical axis is fixedly connected in the groove opened at the end of the rectangular plate away from the electric push rod, and an inclined cut surface is opened on the side of the lower connecting plate near the rectangular plate.

[0012] As a preferred high-precision positioning fixture for processing graphite electrode connectors according to this utility model, a positioning component is provided between the two clamping plates. The positioning component includes a support plate disposed between the two clamping plates. A bending rod is fixedly connected to the bottom surface of the support plate. A roller is installed in an embedded groove at the bottom end of the bending rod. A trapezoidal groove is provided on the upper surface of the rectangular plate. The roller and the surface of the rectangular plate are in contact.

[0013] As a preferred high-precision positioning fixture for processing graphite electrode connectors according to this utility model, the bending rod is inserted into the lower slot opened inside the rectangular box, and the bending rod and the rectangular box are slidably connected.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: A clamping component is added to this application, and the sliding cooperation between the optical axis and the inclined cross-section of the lower connecting plate is used to realize the linkage between the lower horizontal plate and the H-shaped plate, which drives the clamping plates to move in opposite directions, accurately clamping both ends of the graphite electrode connector, ensuring uniform and stable clamping force, and avoiding connector displacement or damage caused by improper clamping. At the same time, a positioning component is added, which automatically pushes the support plate down after the clamping plates complete clamping, avoiding obstruction during the grinding of the graphite electrode connector, simplifying the positioning process, and improving operating efficiency. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This utility model Figure 1 Sectional view at point AA;

[0018] Figure 3 This is a schematic diagram of the inclined plate and H-shaped plate in this utility model;

[0019] Figure 4 This is a structural schematic diagram of the lower connecting plate and the lower horizontal plate in this utility model;

[0020] Figure 5 This is a schematic diagram of the rectangular plate and optical axis in this utility model;

[0021] In the picture:

[0022] 1. Rectangular box;

[0023] 2. Clamping assembly; 21. Rectangular plate; 22. Upper horizontal plate; 23. H-shaped plate; 24. Clamping plate; 25. Lower horizontal plate; 26. Middle connecting plate; 27. L-shaped rod; 28. Electric push rod; 29. ​​Lower connecting plate; 210. Optical axis; 211. Inclined plate; 212. Inclined cut surface;

[0024] 3. Positioning component; 31. Support plate; 33. Bending rod; 34. Lower slot; 35. Roller; 36. Trapezoidal groove. Detailed Implementation

[0025] 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. Example

[0026] like Figures 1 to 5 As shown:

[0027] A high-precision positioning fixture for machining graphite electrode connectors, comprising a rectangular box 1.

[0028] In this implementation plan: According to the public announcement (CN213037246U), a graphite electrode clamp is disclosed. Although this design has the technical effect of inserting one end of the graphite electrode connector into the plug and fixing the hose clamp appropriately when clamping the graphite electrode, and then rotating the plug on the secondary boom through the rotating shaft to fix the other end of the graphite electrode connector, this process involves multiple steps and is complicated. It not only consumes a lot of time and increases the labor intensity of operators, but also is prone to errors due to the many operation steps, resulting in low clamping efficiency and difficulty in meeting the needs of large-scale production. To solve this technical problem, a clamping component 2 and a positioning component 3 are added on this basis.

[0029] Furthermore:

[0030] Based on the above: The rectangular box 1 is internally equipped with a clamping assembly 2, which includes an H-shaped plate 23 and a lower horizontal plate 25 inside the rectangular box 1. Two symmetrically arranged clamping plates 24 are located inside the rectangular box 1. An inclined plate 211 is inserted into a groove at the bottom of each clamping plate 24. The other end of the inclined plate 211 is inserted into the H-shaped plate 23. A lower connecting plate 29 is fixedly connected to the bottom of the lower horizontal plate 25. A rectangular plate 21 is inserted into a horizontal groove starting from one side of the rectangular box 1. Upper horizontal plates 22 are fixedly connected to the opposite sides of the two clamping plates 24. The upper horizontal plates 22 are inserted into rectangular grooves on the surface of the rectangular box 1, and are slidably connected to the rectangular box 1. The H-shaped... Plate 23 and lower horizontal plate 25 are slidably connected to rectangular box 1. Lower horizontal plate 25 is located below H-shaped plate 23. The two ends of inclined plate 211 are rotatably connected to clamping plate 24 and H-shaped plate 23 respectively through shaft pins. An L-shaped rod 27 is fixedly connected to one side of rectangular box 1. An electric push rod 28 is installed on the upper surface of L-shaped rod 27. The end of the output shaft of electric push rod 28 is fixedly connected to one end of rectangular plate 21. Rectangular plate 21 and rectangular box 1 are slidably connected. A middle connecting plate 26 is fixedly connected between H-shaped plate 23 and lower horizontal plate 25. An optical shaft 210 is fixedly connected in the groove opened at the end of rectangular plate 21 away from electric push rod 28. An inclined cut surface 212 is opened on the side of lower connecting plate 29 close to rectangular plate 21.

[0031] In this implementation scheme: when the electric push rod 28 is activated, the output shaft of the electric push rod 28 extends and pushes the rectangular plate 21 to slide in the horizontal groove on one side of the rectangular box 1. During the movement of the rectangular plate 21, the optical shaft 210 fixedly connected to it moves accordingly. The optical shaft 210 contacts the inclined cut surface 212 on one side of the lower connecting plate 29 and slides on its surface. Due to the inclination angle of the inclined cut surface 212, as the optical shaft 210 slides, the lower connecting plate 29 is subjected to an upward component force, which drives the lower horizontal plate 25 to move upward.

[0032] When the lower horizontal plate 25 moves upward, the middle connecting plate 26 drives the H-shaped plate 23 to move upward synchronously. Since the two ends of the inclined plate 211 are rotatably connected to the clamping plate 24 and the H-shaped plate 23 respectively through the shaft pin, the upward movement of the H-shaped plate 23 will push the inclined plate 211 to rotate, thereby causing the two clamping plates 24 to slide along the rectangular groove opened on the surface of the rectangular box 1 in a direction that approaches each other, gradually clamping the two ends of the high-precision graphite electrode connector placed on the support plate 31. As the electric push rod 28 continues to push the rectangular plate 21 to move, the clamping plates 24 move closer and closer until the graphite electrode connector is firmly clamped.

[0033] Furthermore:

[0034] In an optional embodiment, a positioning component 3 is provided between the two clamping plates 24. The positioning component 3 includes a support plate 31 disposed between the two clamping plates 24. A bending rod 33 is fixedly connected to the bottom surface of the support plate 31. A roller 35 is installed in the embedded groove opened at the bottom end of the bending rod 33. A trapezoidal groove 36 is opened on the upper surface of the rectangular plate 21. The roller 35 and the surface of the rectangular plate 21 are in contact. The bending rod 33 is inserted into the lower slot 34 opened inside the rectangular box 1. The bending rod 33 and the rectangular box 1 are slidably connected.

[0035] In this implementation scheme: As the rectangular plate 21 moves, the roller 35 begins to roll on the surface of the rectangular plate 21. After the two clamping plates 24 have completed clamping and fixing the high-precision graphite electrode connector, the optical axis 210 moves to the bottom surface of the lower connecting plate 29. At this time, the lower horizontal plate 25 no longer moves upward. At the same time, the roller 35 rolls to the position of the trapezoidal groove 36 opened on the upper surface of the rectangular plate 21. Since the trapezoidal groove 36 has a specific shape and slope, as the bending rod 33 continues to move, the roller 35 is subjected to a downward force in the trapezoidal groove 36, causing the bending rod 33 to drive the support plate 31 to slide downward along the lower slot 34 inside the rectangular box 1. The support plate 31 moves downward to avoid obstruction during the grinding of the graphite electrode connector, thereby achieving precise positioning of the graphite electrode connector and ensuring high precision and stability of subsequent grinding processes.

[0036] Working principle: When the fixture is in the initial state, the electric push rod 28 is in the retracted state, and the rectangular plate 21 is located in the initial position of the transverse groove on one side of the rectangular box 1. At this time, the two clamping plates 24 are in a state of being far apart from each other, and the distance between them is large enough to accommodate the high-precision graphite electrode connector placed on the support plate 31. At the same time, the roller 35 is located on the surface of the rectangular plate 21 away from the trapezoidal groove 36, and the bending rod 33 is in a higher position in the lower slot 34 inside the rectangular box 1. The support plate 31 is also in a higher position, which makes it convenient for the operator to place the graphite electrode connector stably on the support plate 31.

[0037] When it is necessary to clamp the high-precision graphite electrode connector, the electric push rod 28 is activated. The output shaft of the electric push rod 28 extends and pushes the rectangular plate 21 to slide in the horizontal groove on one side of the rectangular box 1. During the movement of the rectangular plate 21, the optical axis 210 fixedly connected to it moves accordingly. The optical axis 210 contacts the inclined cut surface 212 on one side of the lower connecting plate 29 and slides on its surface. Due to the inclination angle of the inclined cut surface 212, as the optical axis 210 slides, the lower connecting plate 29 is subjected to an upward component force, which drives the lower horizontal plate 25 to move upward.

[0038] When the lower horizontal plate 25 moves upward, the middle connecting plate 26 drives the H-shaped plate 23 to move upward synchronously. Because the two ends of the inclined plate 211 are rotatably connected to the clamping plate 24 and the H-shaped plate 23 respectively through the shaft pin, the upward movement of the H-shaped plate 23 will push the inclined plate 211 to rotate, thereby causing the two clamping plates 24 to slide along the rectangular groove opened on the surface of the rectangular box 1 in the direction of approaching each other, gradually clamping the two ends of the high-precision graphite electrode connector placed on the support plate 31. As the electric push rod 28 continues to push the rectangular plate 21 to move, the clamping plates 24 continue to approach until the graphite electrode connector is firmly clamped.

[0039] While clamping component 2 clamps the graphite electrode connector, positioning component 3 works synchronously. As rectangular plate 21 moves, roller 35 begins to roll on the surface of rectangular plate 21. After the two clamping plates 24 have finished clamping and fixing the high-precision graphite electrode connector, optical axis 210 moves to the bottom surface of lower connecting plate 29. At this time, lower horizontal plate 25 no longer moves upward.

[0040] At the same time, the roller 35 rolls to the position of the trapezoidal groove 36 opened on the upper surface of the rectangular plate 21. Since the trapezoidal groove 36 has a specific shape and slope, as the bending rod 33 continues to move, the roller 35 is subjected to a downward force in the trapezoidal groove 36, which causes the bending rod 33 to drive the support plate 31 to slide down along the lower slot 34 inside the rectangular box 1. The support plate 31 moves down to avoid obstruction during the grinding of the graphite electrode connector, thereby achieving precise positioning of the graphite electrode connector and ensuring high precision and stability of subsequent grinding processes.

[0041] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. High-precision positioning fixture for processing graphite electrode joints, comprising a rectangular box (1), characterized in that: The inside of the rectangular box (1) is provided with a clamping assembly (2), the clamping assembly (2) comprises an H-shaped plate (23) and a lower horizontal plate (25) arranged in the rectangular box (1), the inside of the rectangular box (1) is provided with two symmetrical clamping plates (24), a recess is formed in the bottom end of each clamping plate (24), and an inclined plate (211) is respectively inserted into the recess, one end of the inclined plate (211) is inserted into the inside of the H-shaped plate (23), and the bottom end of the lower horizontal plate (25) is fixedly connected with a lower connecting plate (29).

2. The high-precision positioning jig for processing a joint of a graphite electrode according to claim 1, characterized by: The upper horizontal plate (22) is inserted into the rectangular groove formed in the surface of the rectangular box (1), the upper horizontal plate (22) and the rectangular box (1) are in sliding connection, the H-shaped plate (23) and the lower horizontal plate (25) are in sliding connection with the rectangular box (1), and the lower horizontal plate (25) is located below the H-shaped plate (23).

3. The high-precision positioning jig for processing a joint of a graphite electrode according to Claim 1, characterized by: Both ends of the inclined plate (211) are rotatably connected with the clamping plate (24) and the H-shaped plate (23) through shaft pins.

4. The high-precision positioning jig for processing a joint of a graphite electrode according to Claim 1, characterized by: One side of the rectangular box (1) is fixedly connected with an L-shaped rod (27), an electric push rod (28) is mounted on the upper surface of the L-shaped rod (27), one end of the output shaft of the electric push rod (28) is fixedly connected with the rectangular plate (21), and the rectangular plate (21) and the rectangular box (1) are in sliding connection.

5. The high-precision positioning jig for processing a joint of a graphite electrode according to Claim 1, characterized by: The H-shaped plate (23) and the lower horizontal plate (25) are fixedly connected with a middle connecting plate (26), a recess is formed in one end of the rectangular plate (21) away from the electric push rod (28), and an optical shaft (210) is fixedly connected in the recess, and an inclined surface (212) is formed on the side of the lower connecting plate (29) close to the rectangular plate (21).

6. The high-precision positioning jig for processing a joint of a graphite electrode according to Claim 1, characterized by: A positioning assembly (3) is arranged between the two clamping plates (24), the positioning assembly (3) comprises a supporting plate (31) arranged between the two clamping plates (24), the bottom surface of the supporting plate (31) is fixedly connected with a bent rod (33), a roller (35) is mounted in the embedding groove formed in the bottom end of the bent rod (33), a trapezoidal groove (36) is formed in the upper surface of the rectangular plate (21), and the roller (35) is attached to the surface of the rectangular plate (21).

7. The high-precision positioning jig for processing a joint of a graphite electrode according to claim 6, characterized by: The bent rod (33) is inserted into the lower insertion groove (34) formed in the inside of the rectangular box (1), and the bent rod (33) and the rectangular box (1) are in sliding connection.

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