Graphite electrode center hole processing equipment

Abstract

The present application relates to graphite electrode processing technical field, disclose a kind of graphite electrode center hole processing equipment, including the clamping assembly of graphite electrode positioning, also include the synchronous processing of the center hole of graphite electrode both ends, the opening assembly, opening assembly includes the moving seat of being slidably arranged on the ground rail of both ends respectively, the installation frame of being slidably provided on ground rail is sleeved with graphite electrode, and connecting cylinder is slidably connected on the inner wall of installation frame, sealing assembly is arranged between installation frame inner wall and graphite electrode outer wall, through hole is formed in installation frame, dust suction pipe is connected on the dust suction through hole of upper side, control assembly is arranged on the air inlet through hole of lower side, and the size of opening and closing is automatically adjusted with the pressure change of dust suction pipe.The present application can comprehensively and effectively adsorb the dust generated in the process of graphite electrode center hole processing, so as to ensure the cleanness of working environment and the professional health requirement of staff.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of graphite electrode processing, in particular to a graphite electrode center hole processing equipment. BACKGROUND

[0002] Graphite electrode, mainly with petroleum coke, needle coke as raw material, coal tar pitch as binder, calcination, batching, kneading, molding, baking, graphitization, machining, is in the electric arc furnace with electric arc form release electric energy to the furnace charge heating melting conductor.

[0003] The graphite electrode needs to process the center hole of its two end faces in the machining process, and then an internal thread is opened on the center hole to ensure the butt joint use of the two graphite electrodes. Because the graphite electrode material itself is composed of granular graphite and has a brittle and porous texture, a large amount of dust will inevitably be produced in the center hole processing process. Because the graphite material is easily contaminated by cutting fluid, the existing dust is usually treated by suction pipe in the machining process.

[0004] The above-mentioned process of using suction pipe to absorb dust is open type. Because the suction area of the suction pipe is limited, it cannot fully absorb a large amount of dust, which is easy to make the dust scattered to the surrounding environment, affecting the cleanliness of the working environment and the occupational health of the workers. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the above difficulties and provide a graphite electrode center hole processing equipment.

[0006] To solve the above technical problems, the technical scheme provided by the present application is: a graphite electrode center hole processing equipment, comprising a clamping assembly for positioning the graphite electrode, and an opening assembly for synchronously processing the center holes of the two ends of the graphite electrode, the opening assembly comprising a moving seat slidingly arranged on the ground rail at both ends, a connecting barrel being arranged on the opposite end of each moving seat, a mounting frame slidingly arranged on the ground rail for sleeving the graphite electrode, and the connecting barrel being slidingly connected to the inner wall of the mounting frame, a sealing assembly being arranged between the inner wall of the mounting frame and the outer wall of the graphite electrode;

[0007] A positioning assembly is arranged between the mounting frame and the connecting barrel to fix them, when the mounting frame moves to sleeve the graphite electrode, the sealing assembly is triggered to seal between the mounting frame and the graphite electrode, and the positioning assembly is also triggered to release the positioning between the mounting frame and the connecting barrel;

[0008] A dust suction hole and an air inlet hole are respectively arranged on the top surface and the bottom surface of the mounting frame, a dust suction pipe is connected to the dust suction hole, and a control assembly is arranged on the air inlet hole to automatically adjust the opening and closing size of the air inlet hole according to the pressure change of the dust suction pipe.

[0009] As an improvement, the sealing assembly comprises a connecting ring arranged on the end of the mounting frame, the connecting ring is provided with an annular seat extending into the mounting frame and forming an inclined surface structure, and a sealing ring is arranged on the annular seat, a plurality of notches one are arranged on the sealing ring and the annular seat in the circumferential direction, a matching seat for pushing the inclined surface of the annular seat is slidingly arranged in the mounting frame, a pushing assembly for controlling the sliding adjustment of the matching seat is arranged on the mounting frame, and the pushing assembly is triggered to drive the matching seat to push the annular seat when the mounting frame moves to sleeve the graphite electrode.

[0010] As an improvement, the pushing assembly comprises a pushing cylinder slidingly arranged on the outer wall of the mounting frame, a guide rod slidingly matched with the mounting frame is fixedly arranged on the pushing cylinder, a swing arm one is hinged to the guide rod, a swing arm two is hinged to the matching seat, a swing rod is hingedly connected between the swing arm one and the swing arm two, a bearing frame is fixedly arranged on the inner wall of the mounting frame and hingedly connected with the middle part of the swing rod, a limiting seat for blocking the pushing cylinder is arranged on the clamping assembly, and a fixing assembly for positioning the pushing cylinder and the mounting frame is further arranged between the pushing cylinder and the mounting frame.

[0011] As an improvement, the positioning assembly comprises a fixing seat arranged on the mounting frame, a positioning pin with a rebound function is slidingly arranged in the fixing seat, a pin hole for the positioning pin to extend into is arranged on the connecting cylinder, a frame body is arranged on the outer side end face of the positioning pin, and a wedge-shaped block is arranged on the frame body, a supporting frame is arranged on the clamping assembly, and an adaptive block matched with the wedge-shaped block is arranged on the supporting frame.

[0012] As an improvement, the fixing assembly comprises a sliding rod fixedly arranged on the pushing cylinder, a sliding hole for the sliding rod to extend into is arranged on the mounting frame, a tapered hole is arranged in the sliding rod, a tapered block extending into the tapered hole is fixedly arranged on the bottom wall of the sliding hole, a notch two is arranged on the tapered block in the circumferential direction, and a return spring sleeving the tapered block is further fixedly arranged between the sliding rod and the bottom wall of the through hole.

[0013] As an improvement, the positioning member for fixedly connecting the pushing cylinder and the limiting seat comprises magnets arranged on the pushing cylinder and the limiting seat and matched with each other for use, tapered positioning rods are arranged at both ends of the limiting seat, and a tapered hole for the tapered positioning rod to extend into is arranged on the pushing cylinder.

[0014] As an improvement, the control assembly comprises an air inlet pipe extending into the lower air inlet through hole, an annular boss is arranged on the inner wall of the air inlet pipe, and a swing cover is hingedly connected to the annular boss, and guide plates are further arranged on the inner wall of the mounting frame at both ends of the air inlet pipe.

[0015] The beneficial effects of the present application compared with the prior art are:

[0016] 1. With the help of the opening and sealing components, a large amount of dust generated during the opening process can be controlled within the mounting frame through sealing, preventing the dust from drifting to the outside. With the cooperation of the suction pipe and the control component, the opening and closing size of the control component on the air inlet can be adapted to the change of suction pipe pressure, thereby balancing the airflow within the mounting frame. This allows for continuous adsorption of dust within the mounting frame, thus improving the comprehensiveness of dust adsorption.

[0017] 2. Under the action of the sealing component, when the mounting frame slides to the point of fitting the graphite electrode, the sealing component is triggered to effectively seal the inner wall of the mounting frame and the outer wall of the graphite electrode, thereby improving the convenience of the sealing operation of this device.

[0018] 3. Under the action of the positioning component, the sliding control of the moving seat and the mounting frame can be concentrated on the same power component. When the mounting frame is sleeved and sealed to the graphite electrode, the positioning component is released, and the sliding of the moving seat is controlled separately to process the center hole at the end of the graphite electrode. During the entire processing, a large amount of dust generated can be controlled inside the mounting frame through sealing, thereby avoiding the phenomenon of dust drifting outward.

[0019] 4. While the sealing component is sealing, it can drive the positioning component to automatically release the positioning operation, thereby improving the convenience of the positioning operation of this device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0021] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0022] Figure 3 This is a partial internal structure diagram of the present invention.

[0023] Figure 4 This is a schematic diagram of the structure inside the mounting cylinder in this invention.

[0024] Figure 5 This is the present invention. Figure 4 Enlarged view of point A in the middle.

[0025] Figure 6 This is a schematic diagram of the sealing component in this invention.

[0026] Figure 7 This is a schematic diagram of the structure of the fixing component in this invention.

[0027] Figure 8 This is the present invention. Figure 7 Enlarged view of point B in the middle.

[0028] Figure 9 This is the present invention. Figure 2 Enlarged view of point C in the middle.

[0029] Figure 10 This is a schematic diagram of the control component in this invention.

[0030] As shown in the figure: 1. Clamping assembly; 111. Limiting seat; 112. Bearing seat; 113. Support seat; 114. Crossbeam; 115. Electric cylinder; 116. Clamping seat; 2. Opening assembly; 211. Moving seat; 212. Connecting cylinder; 213. Mounting frame; 214. Annular piston body; 215. Motor; 216. Center drill; 3. Sealing assembly; 311. Connecting ring; 312. Annular seat; 313. Sealing ring; 314. Notch one; 315. Mating seat; 4. Positioning assembly; 411. Fixed seat; 412. Positioning pin; 413. Frame; 414. Wedge block; 415. Support frame; 416. Adaptor block; 5. Suction pipe; 6. Control assembly; 611. Air inlet pipe; 612. Annular boss; 613. Swing cover; 614. Guide plate; 7. Push assembly; 711. Push cylinder; 712. Guide rod; 713. Swing arm one; 714. Swing arm two; 715. Swing rod; 716. Bearing frame; 8. Fixing assembly; 811. Slide rod; 812. Conical hole; 813. Conical block; 814. Notch two; 815. Return spring; 9. Graphite electrode. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings.

[0032] Combined with appendix Figure 1 Appendix Figure 2 Appendix Figure 3 and attached Figure 9 As shown, a graphite electrode center hole processing device includes a clamping assembly 1 for positioning a graphite electrode 9. The clamping assembly 1 includes a bearing seat 112 fixedly mounted on the ground at both ends of the graphite electrode 9. Support seats 113 are fixedly mounted on the ground at both ends of the graphite electrode 9. A crossbeam 114 is slidably mounted on both support seats 113. The sliding of the crossbeam 114 can be controlled by the cooperation of the adjusting screw and the threaded sleeve in the prior art or by the extension and retraction of the electric cylinder. The sliding arrangement of the crossbeam 114 facilitates the hoisting of the graphite electrode onto the bearing seat 112. An electric cylinder 115 is mounted on the crossbeam 114 at a position corresponding to the bearing seat 112. A clamping seat 116 is mounted on the movable end of the electric cylinder 115. The graphite electrode is positioned by the cooperation of the clamping seat 116 and the bearing seat 112.

[0033] The opening assembly 2 for synchronous machining of the center holes at both ends of the graphite electrode 9 comprises two moving seats 211 respectively slidingly arranged on the ground rails at both ends, the relative or opposite sliding of the two moving seats 211 is controlled by an adjusting assembly, which can be the cooperation of a bidirectional screw rod and a threaded sleeve or the cooperation of a gear or a toothed plate, a connecting cylinder 212 is arranged on the opposite end of each moving seat 211, an installation frame 213 for sleeving the graphite electrode 9 is slidingly arranged on the ground rail, the connecting cylinder 212 is slidingly connected to the inner wall of the installation frame 213, an annular piston body 214 abutting against the inner wall of the installation frame 213 is sleeved on the connecting cylinder 212, a motor 215 and a center drill 216 on the output shaft of the motor 215 are further arranged in the moving seat 211, the graphite electrode 9 is machined by rotating the center drill 216 driven by the motor 215, and a sealing assembly 3 is arranged between the inner wall of the installation frame 213 and the outer wall of the graphite electrode 9.

[0034] In order to make the sliding of the installation frame 213 follow the sliding of the moving seat 211, a positioning assembly 4 is arranged between the installation frame 213 and the connecting cylinder 212 to fix them, when the installation frame 213 moves to sleeve the graphite electrode 9, the sealing assembly 3 is triggered to seal between the installation frame 213 and the graphite electrode 9, and the positioning assembly 4 is also triggered to release the positioning between the installation frame 213 and the connecting cylinder 212, by releasing the positioning assembly 4, the installation frame 213 can be in a static state when the moving seat 211 slides during drilling, ensuring the sealing between the installation frame 213 and the graphite electrode 9.

[0035] A dust suction hole and an air inlet hole are respectively arranged on the top surface and the bottom surface of the installation frame 213, a dust suction pipe 5 is connected to the dust suction hole, the other end of the dust suction pipe 5 is connected to an external bag-type dust collector, and a control assembly 6 automatically adjusts the opening and closing size of the air inlet hole according to the pressure change of the dust suction pipe 5, by the arrangement of the control assembly 6, the pressure at the dust suction pipe 5 can be matched with the air inlet amount at the air inlet, so that balanced airflow in the installation frame 213 is ensured during dust suction, which can continuously adsorb dust in the installation frame 213.

[0036] With the above structure, the graphite electrode 9 to be processed is first positioned. In the initial state, the positioning component 4 is in the positioning state. Then, the moving seats 211 at both ends are controlled to slide relative to each other. Due to the positioning of the positioning component 4, the mounting frames 213 at both ends are also driven to slide relative to each other, so that the mounting frames 213 fit onto the graphite electrode 9. During the fitting process, the sealing component 3 is automatically triggered to form a sealed space between the mounting frame 213 and the graphite electrode 9. At the same time, the positioning component 4 is triggered to release the positioning between the mounting frame 213 and the connecting cylinder 212. Then, the moving seats 211 at both ends are controlled to continue to slide relative to each other. At this time, the positioning component 4 is in the released positioning state. In this way, the mounting frame 213 will be stationary on the surface of the graphite electrode 9 to perform the sealing operation. At the same time, the motor 215 is started to drive the center drill 216 to rotate and perform the processing operation on the center hole at the end of the graphite electrode.

[0037] The large amount of dust generated during processing is contained within the enclosed mounting frame 213. By activating the external bag filter, the suction pipe 5 is activated to adsorb the dust inside. During the operation of the suction pipe 5, the control component 6 can adapt the opening and closing size of the air inlet to the pressure of the suction pipe 5, thereby balancing the airflow within the mounting frame 213. This allows for continuous dust adsorption within the mounting frame 213, thus improving the comprehensiveness of dust adsorption.

[0038] Combined with appendix Figure 3 Appendix Figure 4 Appendix Figure 5 and attached Figure 6 As shown, the sealing assembly 3 includes a connecting ring 311 fixedly disposed on the outer end of the mounting frame 213. The connecting ring 311 is provided with an annular seat 312 extending into the mounting frame 213 and having an inclined structure. A sealing ring 313 is provided on the annular seat 312. Multiple notches 314 are provided on the sealing ring 313 and the annular seat 312 along the circumferential direction. A sealing gasket that fills the notches 314 is sleeved on the sealing ring 313. The annular seat 312 has a certain elasticity. A mating seat 315 that pushes the inclined surface of the annular seat 312 is slidably disposed in the mounting frame 213. A pushing assembly 7 that controls the sliding adjustment of the mating seat 315 is provided on the mounting frame 213. When the mounting frame 213 moves to the point of fitting the graphite electrode 9, the pushing assembly 7 is triggered to move and drive the mating seat 315 to push the annular seat 312.

[0039] The pushing assembly 7 includes a pushing cylinder 711 slidably disposed on the outer wall of the mounting frame 213. The upper and lower ends of the pushing cylinder 711 are respectively fixed with guide rods 712 that slide in cooperation with the mounting frame 213. A first swing arm 713 is hinged to the guide rod 712, and a second swing arm 714 is hinged to the mating seat 315. A swing rod 715 is hinged together between the first swing arm 713 and the second swing arm 714. A bearing frame 716 is fixedly disposed on the inner wall of the mounting frame 213 and hinged to the middle of the swing rod 715. A limiting seat 111 is provided on the clamping seat 116 and the bearing seat 112 respectively to block the pushing cylinder 711. A fixing assembly 8 is also provided between the pushing cylinder 711 and the mounting frame 213 to position the two.

[0040] The working principle of the sealing assembly 3 is as follows: When the moving seat 211 drives the mounting frame 213 to slide to the left and the mounting frame 213 engages with the graphite electrode 9, the annular seat 312 and the sealing ring 313 also engage with the graphite electrode 9. When the pushing cylinder 711 and the guide rod 712 are blocked by the restricted seat 111, the mounting frame 213 continues to slide to the left and slides on the guide rod 712. At this time, the swing arm 715, which is hinged to the bearing frame 716, swings to the right. Under the action of the hinged swing arm 1 713 and swing arm 2 714, the mating seat 315 will slide to the left and engage with the annular seat 312. Under the action of the inclined surface and notch 1 314 of the annular seat 312, the annular seat 312 will contract inward, and at the same time, the sealing ring 313 will contract inward, so that the sealing ring 313 tightly abuts against the outer wall of the graphite electrode 9, thereby achieving a sealing effect.

[0041] Combined with appendix Figure 2 and attached Figure 9 As shown, the positioning component 4 includes fixed seats 411 disposed at the upper and lower ends of the mounting frame 213. Each fixed seat 411 is slidably provided with a positioning pin 412 having a spring-loaded function. The connecting cylinder 212 is provided with a pin hole for the positioning pin 412 to extend into. A frame 413 is provided on the outer end face of the positioning pin 412, and a wedge block 414 is provided on the frame 413. The support base 113 and the ground are respectively provided with support frames 415, and an adapter block 416 that cooperates with the wedge block 414 is provided on the support frame 415.

[0042] The positioning and release working principle of the positioning component 4 is as follows: In the initial state, the mounting frame 213 and the connecting cylinder 212 are fixedly connected by the cooperation of the positioning pin 412 and the pin hole. When the mounting frame 213 slides to the left and performs sealing operation on the sealing component 3, the adapter block 416 and the wedge block 414 will cooperate. This will drive the positioning pins 412 at both ends to move in opposite directions and separate from the pin hole, thereby releasing the positioning of the mounting frame 213 and the connecting cylinder 212.

[0043] Combination of the drawings Figure 4 Combination of the drawings Figure 7 Combination of the drawings Figure 8 As shown in the drawings, in order to ensure the positional relationship between the guide rod 712 and the mounting frame 213 in the sealed state of the sealing assembly 3, a fixing assembly 8 is arranged between the push cylinder 711 and the mounting frame 213 to fixedly connect the two, the fixing assembly 8 comprises a slide rod 811 fixedly arranged on the push cylinder 711, a slide hole is formed in the mounting frame 213 for the slide rod 811 to extend into, a tapered hole 812 is formed in the slide rod 811, a tapered block 813 is fixedly arranged on the bottom wall of the slide hole and extends into the tapered hole 812, the size of the tapered block 813 is slightly larger than the inner diameter of the tapered hole 812, and a notch two 814 is formed in the circumferential direction of the tapered block 813, and a return spring 815 is further fixedly arranged between the slide rod 811 and the bottom wall of the through hole and sleeved with the tapered block 813;

[0044] In order to release the positioning of the fixing assembly 8, a positioning piece is arranged between the push cylinder 711 and the limiting seat 111 to fixedly connect the two, the positioning piece comprises magnets arranged on the push cylinder 711 and the limiting seat 111 and used in cooperation with each other, the two magnets are in an attractive state when they are close to each other, the limiting seat 111 is respectively provided with a tapered positioning rod at both ends, and a tapered hole (not shown in the figure) is formed in the push cylinder 711 for the tapered positioning rod to extend into, and the positioning force between the push cylinder 711 and the limiting seat 111 is greater than the positioning force between the push cylinder 711 and the mounting frame 213.

[0045] The working principle of the fixing assembly 8 is that when the push cylinder 711 is blocked by the limiting seat 111 and the mounting frame 213 continues to slide to the left, the tapered block 813 extends into the tapered hole 812, and because the size of the tapered block 813 is slightly larger than the tapered hole 812 and notch two 814 is present, after the tapered block 813 extends into the tapered hole 812, the tapered block 813 tightly abuts against the inner wall of the tapered hole 812, thereby fixedly connecting one end of the push cylinder 711 to the mounting frame 213, and under the cooperation of the two attractive magnets and the tapered positioning rod and the tapered hole, the other end of the push cylinder 711 is fixedly connected to the limiting seat 111;

[0046] After the center hole is processed, the moving seat 211 is driven to slide to the right, and the connecting cylinder 212 is driven to move to the right in the mounting frame 213. When the connecting cylinder 212 slides to the rightmost end of the mounting frame 213, the moving seat 211 is continuously controlled to slide to the right, which drives the mounting frame 213 to synchronously slide to the right. Because the positioning force between the pushing cylinder 711 and the limiting seat 111 is greater than the positioning force between the pushing cylinder 711 and the mounting frame 213, the positioning between the pushing cylinder 711 and the mounting frame 213 is first released, and then the positioning between the pushing cylinder 711 and the limiting seat 111 is released, so that the fixing assembly 8 is reset with the positioning member.

[0047] In combination with the accompanying drawings Figure 10 As shown, the control assembly 6 comprises an air inlet pipe 611 extending into the lower air inlet through hole, and an annular boss 612 is arranged on the inner wall of the air inlet pipe 611 and a swing cover 613 is hinged to the annular boss 612. Through the hinge arrangement of the swing cover 613, the swing angle of the swing cover 613 can be adaptively adjusted when the pressure at the dust suction pipe 5 changes, so that the air inlet amount of the lower air inlet through hole is matched with the pressure of the dust suction pipe 5, and the air flow balance in the mounting frame 213 in the sealed state is ensured. The inner wall of the mounting frame 213 is further provided with a flow guide plate 614 at both ends of the air inlet pipe 611.

[0048] In the specific implementation of the present application, first, the graphite electrode 9 is positioned by the clamping assembly 1, then the two ends of the moving seat 211 are controlled to slide relative to each other, and the two ends of the mounting frame 213 are driven to slide relative to each other, so that the mounting frame 213 is sleeved with the graphite electrode 9. In the sleeving process, the sealing assembly 3 is automatically triggered to act to form a sealed space between the mounting frame 213 and the graphite electrode 9, and the positioning assembly 4 is triggered to act and release the positioning between the mounting frame 213 and the connecting cylinder 212. Then the two ends of the moving seat 211 are continuously controlled to slide relative to each other. At this time, the positioning assembly 4 is in a released state, so that the mounting frame 213 is stationary on the surface of the graphite electrode 9 for sealing operation, and the motor 215 is started to drive the center drill 216 to rotate for machining the center hole at the end of the graphite electrode.

[0049] A large amount of dust generated in the processing process is controlled in the closed mounting frame 213. By starting the external bag-type dust collector, the dust suction pipe 5 is driven to work to adsorb the dust inside. In the working process of the dust suction pipe 5, the control assembly 6 can adaptively change the opening and closing size of the air inlet through hole according to the change of the pressure of the dust suction pipe 5, so as to balance the air flow in the mounting frame 213. In this way, the dust in the mounting frame 213 can be continuously adsorbed, thereby improving the comprehensiveness of dust adsorption.

[0050] The above describes the present application and its embodiments, which are not limited, and the drawings only show one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired thereby, without departing from the spirit of the present application, without creating a similar structure and embodiment of the technical solution, which should belong to the protection scope of the present application.

Claims

1. A graphite electrode center hole processing device, comprising a clamping assembly (1) for positioning the graphite electrode (9), characterized in that: It also includes an opening assembly (2) for synchronously processing the center holes at both ends of the graphite electrode (9). The opening assembly (2) includes movable seats (211) that are slidably mounted on the ground rails at both ends. Connecting cylinders (212) are respectively provided on the opposite ends of the two movable seats (211). A mounting frame (213) for fitting the graphite electrode (9) is slidably mounted on the ground rail. The connecting cylinder (212) is slidably connected to the inner wall of the mounting frame (213). A sealing assembly (3) is provided between the inner wall of the mounting frame (213) and the outer wall of the graphite electrode (9). A positioning component (4) is provided between the mounting frame (213) and the connecting cylinder (212) to fix the two together. When the mounting frame (213) moves to fit the graphite electrode (9), the sealing component (3) is triggered to seal the mounting frame (213) and the graphite electrode (9). At the same time, the positioning component (4) is triggered to release the positioning between the mounting frame (213) and the connecting cylinder (212). A dust suction hole and an air inlet hole are respectively provided on the top and bottom surfaces of the mounting frame (213). A dust suction pipe (5) is connected to the dust suction hole, and a control component (6) is provided on the air inlet hole to automatically adjust the opening and closing size according to the pressure change of the dust suction pipe (5). The sealing assembly (3) includes a connecting ring (311) disposed on the end of the mounting frame (213). The connecting ring (311) is provided with an annular seat (312) extending into the mounting frame (213) and having an inclined structure. A sealing ring (313) is provided on the annular seat (312). Multiple notches (314) are provided on the sealing ring (313) and the annular seat (312) along the circumferential direction. A mating seat (315) is slidably disposed in the mounting frame (213) to push the inclined surface of the annular seat (312). A pushing assembly (7) is provided on the mounting frame (213) to control the sliding adjustment of the mating seat (315). When the mounting frame (213) moves to the point of fitting the graphite electrode (9), the pushing assembly (7) is triggered to move and drive the mating seat (315) to push the annular seat (312). The pushing assembly (7) includes a pushing cylinder (711) slidably disposed on the outer wall of the mounting frame (213). A guide rod (712) is fixedly disposed on the pushing cylinder (711) and slidably engaged with the mounting frame (213). A first swing arm (713) is hinged to the guide rod (712), and a second swing arm (714) is hinged to the mating seat (315). A swing rod (715) is hinged together between the first swing arm (713) and the second swing arm (714). A bearing frame (716) is fixedly disposed on the inner wall of the mounting frame (213) and hinged to the middle of the swing rod (715). A limiting seat (111) is provided on the clamping assembly (1) to block the pushing cylinder (711). The positioning component (4) includes a fixed seat (411) set on the mounting frame (213), a positioning pin (412) with a spring-back function is slidably provided in the fixed seat (411), a pin hole for the positioning pin (412) to be inserted is provided on the connecting cylinder (212), a frame (413) is provided on the outer end face of the positioning pin (412) and a wedge block (414) is provided on the frame (413), a support frame (415) is provided on the clamping component (1) and an adapter block (416) that cooperates with the wedge block (414) is provided on the support frame (415).

2. The graphite electrode center hole processing equipment according to claim 1, characterized in that: A fixing component (8) for positioning the pusher (711) and the mounting frame (213) is also provided.

3. The graphite electrode center hole processing equipment according to claim 2, characterized in that: The fixing component (8) includes a slide rod (811) fixedly mounted on the push cylinder (711), a sliding hole for the slide rod (811) to extend into on the mounting frame (213), a conical hole (812) inside the slide rod (811), a conical block (813) extending into the conical hole (812) fixedly mounted on the bottom wall of the sliding hole, and a notch (814) along the circumferential direction on the conical block (813), and a return spring (815) for engaging the conical block (813) fixedly mounted between the slide rod (811) and the bottom wall of the through hole.

4. The graphite electrode center hole processing equipment according to claim 3, characterized in that: The push cylinder (711) and the limiting seat (111) are provided with a positioning component to fix the two together. The positioning component includes magnets that cooperate with each other on the push cylinder (711) and the limiting seat (111). The limiting seat (111) is provided with tapered positioning rods at both ends. The push cylinder (711) is provided with tapered holes for the tapered positioning rods to extend into.

5. The graphite electrode center hole processing equipment according to claim 1, characterized in that: The control component (6) includes an air intake pipe (611) extending into the lower air intake hole. An annular boss (612) is provided on the inner wall of the air intake pipe (611), and a swing cover (613) is hinged to the annular boss (612). A guide plate (614) is also provided on the inner wall of the mounting frame (213) at both ends of the air intake pipe (611).

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