Centering device and method for super-large heavy-load high-temperature arc-shaped feeding equipment

Abstract

The invention belongs to the technical field of metallurgy, and discloses a centering device and method for super-large heavy-load high-temperature arc-shaped feeding equipment. The centering device comprises a feeding centering assembly, an upper platform, a lower platform and hydraulic cylinders, the upper platform and the lower platform are both annular platforms, the lower platform is fixed to the ground installation platform, and the upper platform is fixed to the lower platform through the hydraulic cylinders distributed in a central symmetry mode. And centering assemblies in bilateral symmetry are arranged on the upper surface of the upper platform. The centering device and method have the functions of automatic detection, automatic calculation and automatic drive compensation, the 90-degree feeding angle of the super-large heavy-load arc-shaped casting and forging piece can be achieved through the fact that the geometric center of the super-large heavy-load arc-shaped casting and forging piece coincides with the geometric center of equipment, accurate control over material flow is achieved during forging, and the production efficiency is improved. And parameters such as the roundness and the expansion degree of the oversized heavy-load arc-shaped casting and forging finished product are successfully controlled. The centering device and method are key devices and methods for machining the oversized heavy-load arc-shaped casting and forging pieces to obtain qualified sizes, and have engineering popularization value.

Description

Technical Field

[0001] The present invention belongs to the technical field of metallurgy, and in particular relates to a centering device and method for ultra-large, heavy-load, high-temperature arc-shaped feeding equipment. Background Art

[0002] Feeding devices are commonly used in the metallurgical industry for conveying materials. They are mostly used for feeding small, light-loaded products. They typically use a linear feed method, which uses rollers, belts, and other equipment, driven by a complex transmission system, to deliver the blank to the designated location. Some use a circular feed method, which is mostly a grinding disc type, feeding the entire forging synchronously with the pallet.

[0003] Ultra-large, heavy-duty, high-temperature curved forgings are ultra-heavy, irregular, thin forgings with an outer diameter exceeding 10 meters, an inner diameter exceeding 6 meters, a maximum spread of 180°, and a blank thickness of approximately 0.3 meters. Symmetrical bosses are provided on the upper and lower surfaces. These forgings are made of specialized materials and operate in harsh environments, requiring superior mechanical properties and placing new and higher demands on the processing technology.

[0004] The processing technology for ultra-large, heavy-load, high-temperature curved forgings has been under investigation for a long time, from initial segmented forging and directional casting to the currently established one-piece forging technology. One-piece forging requires the establishment of dedicated ultra-large, heavy-load, high-temperature curved forging equipment. Both linear and circular feed methods are unsuitable for feeding ultra-large, heavy-load, high-temperature curved forgings.

[0005] Currently, there is an urgent need to develop a centering device and method for ultra-large, heavy-load, high-temperature arc feeding equipment. Summary of the Invention

[0006] One technical problem to be solved by the present invention is to provide a centering device for ultra-large and heavy-loaded high-temperature arc feeding equipment. Another technical problem to be solved by the present invention is to provide a centering method for ultra-large and heavy-loaded high-temperature arc feeding equipment to solve the problem of centering the feeding of ultra-large and heavy-loaded arc materials.

[0007] The centering device for ultra-large, heavy-load, high-temperature arc-shaped feeding equipment of the present invention comprises a centering component, an upper platform, a lower platform and a hydraulic cylinder; Both the upper and lower platforms are circular platforms, with the upper platform higher than the lower platform. The lower platform is fixed to the ground-mounted platform, and the upper platform is fixed to the lower platform via hydraulic cylinders symmetrically distributed around the center. At the 12 o'clock and 6 o'clock positions, the upper and lower platforms are provided with arc-shaped notches that run through them vertically. The lower anvil fixed to the ground-mounted platform is installed in the arc-shaped notch at 12 o'clock. The upper surface of the upper platform is provided with centrally symmetrical feed avoidance components. Except for the 12 o'clock and 6 o'clock positions, the centering components are symmetrical and evenly spaced in the middle of the feed avoidance components. The upper platform is provided with a through slot at the installation position of the centering assembly; the slide plate of the centering assembly is a slender flat plate placed horizontally along the radial direction of the upper surface of the upper platform, the slide plate is embedded in the through slot, the upper surface of the slide plate is flush with the upper surface of the upper platform, and both ends of the slide plate extend out of the upper platform; On the chute plate, two waist-shaped grooves are radially opened along the upper surface of the upper platform. Waist-shaped groove I is close to the outer edge of the upper platform, and waist-shaped groove II is close to the inner edge of the upper platform. On the lower surface of the chute plate, between waist-shaped groove I and waist-shaped groove II, two sets of back-to-back centering mechanisms are installed. The centering mechanism close to the inner edge of the upper platform is the inner centering mechanism, and the centering mechanism close to the outer edge of the upper platform is the outer centering mechanism. The inner servo motor of the inner centering mechanism is connected to the inner worm gear reduction box through the inner coupling. The output end of the inner worm gear reduction box is connected to the horizontal inner trapezoidal thread shaft through the changing gear. The inner trapezoidal nut is mounted on the inner trapezoidal thread shaft. The inner trapezoidal nut is fixed on the inner slide. The inner core shaft passes through the waist groove I from top to bottom and is connected to the inner slide through the steering mechanism. The inner guide roller is mounted on the inner core shaft. The outer servo motor of the outer centering mechanism is connected to the outer worm gear reduction box through the outer coupling. The output end of the outer worm gear reduction box is connected to the horizontal outer trapezoidal thread shaft through the changing gear. The outer trapezoidal nut is mounted on the outer trapezoidal thread shaft. The outer trapezoidal nut is fixed on the outer slide. The outer core shaft passes through the waist groove II from top to bottom and is connected to the outer slide through the steering mechanism. The outer guide roller is mounted on the outer core shaft. Position sensors are installed on the chute plate and on the ground inside and outside the upper platform to monitor the position of the arc-shaped parts; The inner servo motor, the outer servo motor and the position sensor are connected to a main machine of the ultra-large heavy-load high-temperature arc feeding equipment through cables.

[0008] Furthermore, the inner guide roller and the outer guide roller are both made of heat-resistant steel.

[0009] Furthermore, the length of the waist-shaped groove I is greater than the length of the waist-shaped groove II, and the length of the outer trapezoidal thread shaft is greater than the length of the inner trapezoidal thread shaft.

[0010] The centering method for ultra-large, heavy-load, high-temperature arc-shaped feeding equipment of the present invention comprises the following steps: S10. Place the arc-shaped piece; Heat the semicircular arc-shaped piece to 1200°C and drag it from the side away from the lower anvil to the upper surface of the upper platform; S20. Arc-shaped parts are rotated and fed; The feeding and avoiding assembly is started, and the feeding and avoiding assembly drives the arc-shaped member to move in a clockwise direction toward the lower anvil, while avoiding the arc-shaped member boss on the lower surface of the arc-shaped member during the movement; During the arc-shaped part's feeding and avoidance process, the displacement sensor transmits the arc-shaped part's position to the main machine in real time, and the main machine draws the arc centerline of the arc-shaped part in real time. The unprocessed arc-shaped part is taken as blank I. The center of the arc centerline of blank I coincides with the center of the upper platform. The feeding angle is 90°. Before blank I reaches the lower anvil, there is no need to adjust the position of blank I by the centering component. S30. Blank I forging process; After the blank I reaches the lower anvil, the press drives the upper anvil to press downward. The hydraulic cylinder adapts to and follows the downward pressure of the upper anvil to protect the upper platform from impact. The arc-shaped part is gradually thinned, widened, and lengthened under the squeezing of the upper and lower anvils to obtain the blank II. S40. Blank II position monitoring; The feeding avoidance component continues to rotate and feed blank II. During the process of blank II rotating and feeding, the displacement sensor transmits the position of blank II to the host in real time. The host draws the arc centerline of blank II in real time and calculates the feeding angle of blank II. Once the feeding angle deviates from 90°, it is determined that an inflection point has occurred. Based on the position of the arc centerline of blank II and the requirement of a 90° feeding angle, the host calculates the arc centerline position of blank II that needs to be adjusted, and sends the corresponding position adjustment information to each centering component in real time. S50. Centering adjustment of blank II; If the blank II is located on the left side of the upper platform; after the inner servo motors of the 5 centering components on the left receive the information, they drive the inner core shaft to rotate and move in the radial direction of the upper surface of the upper platform in the waist groove I, and the inner guide roller rotates and fits the inner arc of the arc-shaped part, guiding and pushing the arc-shaped part to move to the outer edge of the upper platform until it reaches the pre-adjusted position; after the outer servo motors of the 5 centering components on the left receive the information, they drive the outer core shaft to rotate and move in the radial direction of the upper surface of the upper platform in the waist groove II, and the inner guide roller rotates and fits the outer arc of the arc-shaped part, guiding and pushing the arc-shaped part to move to the inner edge of the upper platform until it reaches the pre-adjusted position, thereby achieving centering; If blank II is located on the right side of the upper platform, the inner servo motors of the five centering components on the right side also push the arc-shaped part to move toward the outer edge of the upper platform until it reaches the pre-adjusted position; the outer servo motors of the five centering components on the left side also push the arc-shaped part to move toward the inner edge of the upper platform until it reaches the pre-adjusted position to achieve centering; S60. Blank II forging process; After centering, the press drives the upper anvil to press downward, and the hydraulic cylinder adapts to and follows the downward pressure of the upper anvil to protect the upper platform from impact. The blank II is gradually thinned, widened, and lengthened under the extrusion of the upper and lower anvils. After two-fire forging, the blank size requirements are met and the blank forging process is completed.

[0011] The centering device and method for ultra-large and heavy-load high-temperature arc feeding equipment of the present invention have the functions of automatic detection, automatic calculation, and automatic drive compensation. By aligning the geometric center of the ultra-large and heavy-load arc casting and forging with the geometric center of the equipment, the ultra-large and heavy-load arc casting and forging can achieve a feeding angle of 90°. During forging, accurate control of the material flow can be achieved, and parameters such as the roundness and expansion of the finished ultra-large and heavy-load arc casting and forging can be successfully controlled.

[0012] The centering device and method for ultra-large and heavy-load high-temperature arc feeding equipment of the present invention are key devices and methods for ultra-large and heavy-load arc castings and forgings to complete forging according to established processes and ultimately obtain qualified dimensions, and have engineering promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram (perspective view) of the overall structure of the centering device for ultra-large, heavy-load, high-temperature arc feeding equipment of the present invention; Figure 2 This is a schematic diagram of the overall structure of the centering device for ultra-large, heavy-load, high-temperature arc feeding equipment of the present invention (front view); Figure 3 This is a schematic diagram of the overall structure of the centering device for ultra-large, heavy-load, high-temperature arc feeding equipment of the present invention (top view); Figure 4 A schematic structural diagram (front view) of a centering assembly in a centering device for ultra-large, heavy-load, high-temperature arc-shaped feeding equipment according to the present invention; Figure 5 A schematic structural diagram (stereoscopic diagram) of a centering assembly in a centering device for ultra-large, heavy-load, high-temperature arc-shaped feeding equipment according to the present invention; Figure 6 This is a schematic diagram (stereoscopic view) of the installation of a centering device for ultra-large, heavy-load, high-temperature arc feeding equipment according to the present invention; Figure 7 This is a schematic diagram of a 90° feeding angle in Example 1; Figure 8 This is a schematic diagram of a non-90° feeding angle in Example 1; Figure 9 This is a schematic diagram of the centering process in Example 1.

[0014] In the figure, 1. Press; 2. Upper anvil; 3. Lower anvil; 4. Centering assembly; 5. Arc member; 6. Feeding and avoiding assembly; 7. Upper platform; 8. Lower platform; 9. Hydraulic cylinder; 10. Press support; 401. Inner guide roller; 402. Inner mandrel; 403. Inner slide; 404. Inner trapezoidal nut; 405. Inner trapezoidal threaded shaft; 406. Inner worm gear reduction box; 407. Inner coupling; 408. Inner servo motor; 409. Outer guide roller; 410. Outer mandrel; 411. Outer slide; 412. Outer trapezoidal nut; 413. Outer trapezoidal threaded shaft; 414. Outer worm gear reduction box; 415. Outer coupling; 416. Outer servo motor; 417. Slide plate; 501. Arc-shaped boss. DETAILED DESCRIPTION

[0015] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0016] like Figures 1 to 3 As shown, the centering device for ultra-large heavy-load high-temperature arc feeding equipment of the present invention includes a centering component 4, an upper platform 7, a lower platform 8 and a hydraulic cylinder 9; The upper platform 7 and the lower platform 8 are both annular platforms, with the upper platform 7 being higher than the lower platform 8; the lower platform 8 is fixed to the ground-mounted platform, and the upper platform 7 is fixed to the lower platform 8 by hydraulic cylinders 9 that are symmetrically distributed around the center; at the 12 o'clock and 6 o'clock positions, the upper platform 7 and the lower platform 8 are provided with arc-shaped notches that pass through from top to bottom, and the lower anvil 3 fixed to the ground-mounted platform is installed at the arc-shaped notch at 12 o'clock; The upper surface of the upper platform 7 is provided with a centrally symmetrical feed avoidance assembly 6. Except for the 12 o'clock and 6 o'clock positions, the centering assemblies 4 are symmetrically and evenly spaced in the middle of the feed avoidance assembly 6. The upper platform 7 is provided with a through slot at the installation position of the centering assembly 4; the slide plate 417 of the centering assembly 4 is a slender flat plate placed horizontally along the radial direction of the upper surface of the upper platform 7. The slide plate 417 is embedded in the through slot, and the upper surface of the slide plate 417 is flush with the upper surface of the upper platform 7. Both ends of the slide plate 417 extend out of the upper platform 7; like Figure 4 、 Figure 5 As shown, two waist-shaped grooves are radially opened on the upper surface of the upper platform 7 on the chute plate 417. The waist-shaped groove I is close to the outer edge of the upper platform 7, and the waist-shaped groove II is close to the inner edge of the upper platform 7. On the lower surface of the chute plate 417, a set of two back-to-back centering mechanisms are installed on the solid flat plate between the waist-shaped groove I and the waist-shaped groove II. The centering mechanism close to the inner edge of the upper platform 7 is the inner centering mechanism, and the centering mechanism close to the outer edge of the upper platform 7 is the outer centering mechanism. The inner servo motor 408 of the inner centering mechanism is connected to the inner worm gear reduction box 406 via the inner coupling 407. The output end of the inner worm gear reduction box 406 is connected to the horizontal inner trapezoidal threaded shaft 405 via a changing gear. The inner trapezoidal nut 404 is mounted on the inner trapezoidal threaded shaft 405. The inner trapezoidal nut 404 is fixed to the inner slide 403. The inner core shaft 402 passes through the waist groove I from top to bottom and is connected to the inner slide 403 via the steering mechanism. The inner core shaft 402 is mounted on the inner guide roller 401. The outer servo motor 416 of the outer centering mechanism is connected to the outer worm gear reduction box 414 via the outer coupling 415. The output end of the outer worm gear reduction box 414 is connected to the horizontal outer trapezoidal threaded shaft 413 via a changing gear. The outer trapezoidal nut 412 is mounted on the outer trapezoidal threaded shaft 413. The outer trapezoidal nut 412 is fixed to the outer slide 411. The outer core shaft 410 passes through the waist groove II from top to bottom and is connected to the outer slide 411 via the steering mechanism. The outer core shaft 410 is mounted on the outer guide roller 409. Position sensors are provided on the chute plate 417 and on the ground inside and outside the upper platform 7 to monitor the position of the arc-shaped member 5; The inner servo motor 408, the outer servo motor 416 and the position sensor are connected to the main machine of the ultra-large heavy-load high-temperature arc feeding equipment through cables.

[0017] Furthermore, the inner guide roller 401 and the outer guide roller 409 are both made of heat-resistant steel.

[0018] Furthermore, the length of the waist-shaped groove I is greater than the length of the waist-shaped groove II, and the length of the outer trapezoidal thread shaft 413 is greater than the length of the inner trapezoidal thread shaft 405.

[0019] The centering method for ultra-large, heavy-load, high-temperature arc-shaped feeding equipment of the present invention comprises the following steps: S10. Place the arc-shaped member 5; Heat the semicircular arc-shaped member 5 to 1200°C and drag it from the side away from the lower anvil 3 to the upper surface of the upper platform 7; S20. The arc-shaped member 5 is rotated and fed; The feeding and avoiding assembly 6 is started, and the feeding and avoiding assembly 6 drives the arc-shaped member 5 to move in a clockwise direction toward the lower anvil 3, while avoiding the arc-shaped member boss 501 on the lower surface of the arc-shaped member 5 during the movement; During the process of feeding and avoiding the arc-shaped part 5, the displacement sensor transmits the position of the arc-shaped part 5 to the host in real time, and the host draws the arc center line of the arc-shaped part 5 in real time; the unprocessed arc-shaped part 5 is taken as the blank I, the center of the arc center line of the blank I coincides with the center of the upper platform 7, and the feeding angle is 90°. Before the blank I reaches the lower anvil 3, there is no need for the centering component 4 to adjust the position of the blank I; S30. Blank I forging process; After the blank I reaches the lower anvil 3, the press 1 drives the upper anvil 2 to press downward. The hydraulic cylinder 9 adapts to and follows the downward pressing action of the upper anvil 2 to protect the upper platform 7 from impact. The arc-shaped part 5 is gradually thinned, widened, and lengthened under the extrusion of the upper anvil 2 and the lower anvil 3 to obtain the blank II. S40. Blank II position monitoring; The feeding avoidance component 6 continues to rotate and feed the blank II. During the process of the blank II rotating and feeding, the displacement sensor transmits the position of the blank II to the host in real time. The host draws the arc center line of the blank II in real time and calculates the feeding angle of the blank II. Once the feeding angle deviates from 90°, it is determined that an inflection point has occurred. The host calculates the arc center line position of the blank II that needs to be adjusted according to the position of the arc center line of the blank II and the requirement of the feeding angle of 90°, and sends the corresponding position adjustment information to each centering component 4 in real time; S50. Centering adjustment of blank II; If the blank II is located on the left side of the upper platform 7; after receiving the information, the inner servo motor 408 of the five centering components 4 on the left side drives the inner core shaft 402 to rotate and move in the radial direction of the upper surface of the upper platform 7 in the waist-shaped groove I, and the inner guide roller 401 rotates and fits the inner arc of the arc-shaped part 5, guiding and pushing the arc-shaped part 5 to move to the outer edge of the upper platform 7 until it reaches the pre-adjusted position; after receiving the information, the outer servo motor 416 of the five centering components 4 on the left side drives the outer core shaft 410 to rotate and move in the radial direction of the upper surface of the upper platform 7 in the waist-shaped groove II, and the inner guide roller 401 rotates and fits the outer arc of the arc-shaped part 5, guiding and pushing the arc-shaped part 5 to move to the inner edge of the upper platform 7 until it reaches the pre-adjusted position, thereby achieving centering; If the blank II is located on the right side of the upper platform 7, the inner servo motors 408 of the five centering assemblies 4 on the right side also push the arc-shaped member 5 to move toward the outer edge of the upper platform 7 until it reaches the pre-adjusted position; the outer servo motors 416 of the five centering assemblies 4 on the left side also push the arc-shaped member 5 to move toward the inner edge of the upper platform 7 until it reaches the pre-adjusted position, thereby achieving centering. S60. Blank II forging process; After centering, the press 1 drives the upper anvil 2 to press downward, and the hydraulic cylinder 9 adapts to and follows the downward pressing action of the upper anvil 2 to protect the upper platform 7 from impact. The blank II is gradually thinned, widened, and lengthened under the extrusion of the upper anvil 2 and the lower anvil 3. After two-fire forging, the blank size requirements are met and the blank forging process is completed.

[0020] Embodiment: The outer diameter of the upper platform 7 and the lower platform 8 of this embodiment is 14 meters; the outer diameter of the arc-shaped member 5 is 10.4 meters, the inner diameter is 6 meters, and the thickness is only 0.3 meters, and it is processed in two halves.

[0021] like Figure 6 As shown, the feeding device includes a press 1, an upper anvil 2, a lower anvil 3, a centering assembly 4, an arc-shaped member 5, a feeding and avoiding assembly 6, an upper platform 7, a lower platform 8, a hydraulic cylinder 9 and a press support 10; The press 1 is mounted on a press support 10, and an upper anvil 2 facing downward is fixed on the crossbeam of the press 1; a lower anvil 3 corresponds to the upper anvil 2 in the upper and lower directions; The upper surface of the upper platform 7 is provided with a centrally symmetrical feed avoidance assembly 6. Except for the 12 o'clock and 6 o'clock positions, the centering assemblies 4 are symmetrically and evenly spaced in the middle of the feed avoidance assembly 6. The arc-shaped part 5 is placed on the upper surface of the upper platform 7, and the feeding and avoiding component 6 pushes the arc-shaped part 5 to move in a clockwise arc. During the clockwise arc movement, the feeding and avoiding component 6 avoids the boss structure or other irregular structure on the lower surface of the arc-shaped part 5 in turn. The centering component 4 continuously adjusts the feeding angle before the arc-shaped part 5 reaches the lower anvil 3 to ensure that the feeding angle of the arc-shaped part 5 when entering the lower anvil 3 is 90°. The hydraulic cylinder 9 adapts to and follows the downward pressing action of the upper anvil 2 to protect the lower platform 8 from the impact of the press 1.

[0022] During the alignment process, Figure 7 As shown in the figure, the center of the arc centerline of the blank I coincides with the center of the upper platform 7, and the feed angle is 90°. Then, the extension line of the horizontal tangent line at any point on the end face of the blank I forms a 90° angle with the vertical centerline. Figure 8 As shown, if the centering assembly 4 is not corrected before the upper anvil 2 is pressed down, the feed angle will not be 90°, and the material flow will not flow in the predetermined direction during forging, which will eventually lead to substandard forgings. Figure 9 As shown, before forging, the blank II is pushed from the current position to the pre-adjusted position by the centering component 4 to complete the centering work.

[0023] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the description and implementation methods. For those familiar with the art, all features disclosed in the present invention, or all steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any way without departing from the principles of the present invention. The present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A centering device for ultra-large, heavy-load, high-temperature arc feeding equipment, characterized in that: The centering device comprises a centering component (4), an upper platform (7), a lower platform (8) and a hydraulic cylinder (9); The upper platform (7) and the lower platform (8) are both annular platforms, and the height of the upper platform (7) is higher than that of the lower platform (8); the lower platform (8) is fixed on the ground mounting platform, and the upper platform (7) is fixed on the lower platform (8) through hydraulic cylinders (9) distributed symmetrically around the center; at the 12 o'clock and 6 o'clock positions, the upper platform (7) and the lower platform (8) are provided with arc-shaped notches running through the upper and lower parts, and the arc-shaped notch at 12 o'clock is provided with a lower anvil (3) fixed on the ground mounting platform; The upper surface of the upper platform (7) is provided with a centrally symmetrical feed avoidance component (6), and except for the 12 o'clock and 6 o'clock positions, the centering components (4) are symmetrically and evenly spaced and staggered in the middle of the feed avoidance component (6); The upper platform (7) is provided with a through groove at the installation position of the centering component (4); the slide plate (417) of the centering component (4) is a slender flat plate placed horizontally along the radial direction of the upper surface of the upper platform (7); the slide plate (417) is embedded in the through groove, the upper surface of the slide plate (417) is flush with the upper surface of the upper platform (7), and both ends of the slide plate (417) extend out of the upper platform (7); On the chute plate (417), two waist-shaped grooves are radially opened along the upper surface of the upper platform (7), the waist-shaped groove I is close to the outer edge of the upper platform (7), and the waist-shaped groove II is close to the inner edge of the upper platform (7). On the lower surface of the chute plate (417), a set of two sets of back-to-back centering mechanisms are installed at the solid flat plate between the waist-shaped groove I and the waist-shaped groove II. The centering mechanism close to the inner edge of the upper platform (7) is the inner centering mechanism, and the centering mechanism close to the outer edge of the upper platform (7) is the outer centering mechanism; The inner servo motor (408) of the inner centering mechanism is connected to the inner worm gear reduction box (406) through the inner coupling (407), the output end of the inner worm gear reduction box (406) is connected to the horizontal inner trapezoidal thread shaft (405) through the changing gear, the inner trapezoidal nut (404) is sleeved on the inner trapezoidal thread shaft (405), the inner trapezoidal nut (404) is fixed on the inner slide (403), the inner core shaft (402) passes through the waist groove I from top to bottom and is connected to the inner slide (403) through the steering mechanism, and the inner guide roller (401) is sleeved on the inner core shaft (402); The outer servo motor (416) of the outer centering mechanism is connected to the outer worm gear reduction box (414) through the outer coupling (415), the output end of the outer worm gear reduction box (414) is connected to the horizontal outer trapezoidal thread shaft (413) through the changing gear, the outer trapezoidal nut (412) is sleeved on the outer trapezoidal thread shaft (413), the outer trapezoidal nut (412) is fixed on the outer slide (411), the outer core shaft (410) passes through the waist groove II from top to bottom and is connected to the outer slide (411) through the steering mechanism, and the outer guide roller (409) is sleeved on the outer core shaft (410); Position sensors are provided on the chute plate (417) and on the ground inside and outside the upper platform (7) for monitoring the position of the arc-shaped member (5); The inner servo motor (408), the outer servo motor (416) and the position sensor are connected to the main machine of the ultra-large heavy-load high-temperature arc feeding device through cables.

2. The centering device for ultra-large, heavy-load, high-temperature arc feeding equipment according to claim 1 is characterized in that: The inner guide roller (401) and the outer guide roller (409) are both made of heat-resistant steel.

3. The centering device for ultra-large, heavy-load, high-temperature arc feeding equipment according to claim 1 is characterized in that: The length of the waist-shaped groove I is greater than that of the waist-shaped groove II, and the length of the outer trapezoidal thread shaft (413) is greater than that of the inner trapezoidal thread shaft (405).

4. A method for centering an ultra-large and heavy-loaded high-temperature arc feeding device, which is a centering device for ultra-large and heavy-loaded high-temperature arc feeding equipment according to any one of claims 1 to 3, characterized in that: The following steps are involved: S10. Place the arc-shaped member (5); The semicircular arc-shaped member (5) is heated to 1200° C. and is dragged and dropped from the side away from the lower anvil (3) to the upper surface of the upper platform (7); S20. The arc-shaped member (5) is rotated and fed; The feeding avoidance component (6) is started, and the feeding avoidance component (6) drives the arc-shaped member (5) to move in a clockwise direction toward the lower anvil (3), while avoiding the arc-shaped member boss (501) on the lower surface of the arc-shaped member (5) during the movement; During the process of feeding and avoiding the arc-shaped part (5), the displacement sensor transmits the position of the arc-shaped part (5) to the host in real time, and the host draws the arc center line of the arc-shaped part (5) in real time; the unprocessed arc-shaped part (5) is taken as the blank I, the center of the arc center line of the blank I coincides with the center of the upper platform (7), and the feeding angle is 90°. Before the blank I reaches the lower anvil (3), it is not necessary to adjust the position of the blank I by the centering component (4); S30. Forging of blank I; After the blank I reaches the lower anvil (3), the press (1) drives the upper anvil (2) to press downward, and the hydraulic cylinder (9) adapts to and follows the downward pressing action of the upper anvil (2) to protect the upper platform (7) from impact. The arc-shaped part (5) is gradually thinned, widened, and lengthened under the extrusion of the upper anvil (2) and the lower anvil (3) to obtain the blank II; S40. Blank II position monitoring; The feeding avoidance component (6) continues to rotate and feed the blank II. During the process of the blank II rotating and feeding, the displacement sensor transmits the position of the blank II to the host in real time. The host draws the arc center line of the blank II in real time and calculates the feeding angle of the blank II. Once it is found that the feeding angle deviates from 90°, it is determined that an inflection point has occurred. The host calculates the arc center line position of the blank II that needs to be adjusted according to the requirement of the feeding angle of 90° based on the arc center line position of the blank II and the corresponding position adjustment information is sent to each centering component (4) in real time. S50. Blank II centering adjustment; If the blank II is located on the left side of the upper platform (7); after receiving the information, the inner servo motor (408) of the five centering components (4) on the left side drives the inner core shaft (402) to rotate and move along the radial direction of the upper surface of the upper platform (7) in the waist groove I, and the inner guide roller (401) rotates and presses against the inner arc of the arc-shaped part (5), guides and pushes the arc-shaped part (5) to move toward the outer edge of the upper platform (7) until it reaches the pre-adjusted position; after receiving the information, the outer servo motor (416) of the five centering components (4) on the left side drives the outer core shaft (410) to rotate and move along the radial direction of the upper surface of the upper platform (7) in the waist groove II, and the inner guide roller (401) rotates and presses against the outer arc of the arc-shaped part (5), guides and pushes the arc-shaped part (5) to move toward the inner edge of the upper platform (7) until it reaches the pre-adjusted position, thereby achieving centering; If the blank II is located on the right side of the upper platform (7), the inner servo motors (408) of the five centering components (4) on the right side also push the arc-shaped member (5) to move toward the outer edge of the upper platform (7) until it reaches the pre-adjusted position; the outer servo motors (416) of the five centering components (4) on the left side also push the arc-shaped member (5) to move toward the inner edge of the upper platform (7) until it reaches the pre-adjusted position, thereby achieving centering; S60. Blank II forging process; After centering, the press (1) drives the upper anvil (2) to press downward, and the hydraulic cylinder (9) adapts to and follows the downward pressing action of the upper anvil (2) to protect the upper platform (7) from impact. The blank II is gradually thinned, widened, and lengthened under the extrusion of the upper anvil (2) and the lower anvil (3). After two-fire forging, the blank size requirements are met, and the blank forging process is completed.

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