505results about "Metal rolling" patented technology

A method for manufacturing a continuous torque tube of a solar tracking system on site includes the steps of: placing raw material at a rolling apparatus on site; shaping the raw material into torque tube components at the rolling apparatus on site; joining the shaped torque tube components output from the rolling apparatus on site to create a continuous torque tube; and placing solar modules at the continuous torque tube to create a continuous solar tracker row.

The invention discloses a downward pressing type L-shaped wind power flange ring rolling device and a using method thereof.The device comprises a bearing frame and a ring rolling mechanism, and the ring rolling mechanism is arranged on the bearing frame; the ring rolling mechanism comprises a driving piece installed on the bearing frame, a lower ring rolling piece, a ring expanding piece and an upper ring rolling piece, wherein the lower ring rolling piece and the ring expanding piece are installed on the driving piece in a sliding mode, and the upper ring rolling piece is coaxially arranged above the lower ring rolling piece. The ring rolling device is provided with the ring rolling mechanism, the lower ring rolling piece and the ring expanding piece are driven by the first motor to move in different directions, an upper pressing roller and a lower pressing roller are gradually and tightly combined in cooperation with a tight combining piece to roll the ring blank while the ring blank is subjected to expanding machining, and the ring blank is machined into the needed size. The machining time is shortened, the machining efficiency is improved, and the device is compact in structure and not prone to faults.

The invention discloses a large-size high-strength 2195 aluminum-lithium alloy forged ring and a preparation method thereof. The preparation method comprises the following steps: selecting a cast ingot with the size ratio of height to diameter of 3.5-4.2 as a forged ring raw material; a forging ring raw material is heated and subjected to heat preservation, upsetting and drawing-out are conducted on the forging ring raw material once in three directions on pressure equipment, double-drum rounding is conducted after each time of upsetting, four-direction pressing and eight-direction reversing are conducted after drawing-out, finally one time of axial upsetting is conducted, and punching is conducted after the last time of axial upsetting; broaching the forged ring raw material after punching, and performing radial ring rolling to obtain a ring blank; heating the ring blank, and immediately immersing the ring blank in water after heating; after solution treatment, axial cold pressing and radial cold bulging are carried out, the radial cold bulging is divided into three stages, the ring blank is rotated by a certain angle along a ring mandrel after radial cold bulging in each stage, and uniform deformation is guaranteed; the method has the advantages that anisotropy is reduced, the residual stress of the forged ring is small, and the percent of pass is high.

The utility model discloses a flange chambering device, which relates to the technical field of flange processing and comprises a pressure seat rotatably connected inside a moving frame. The extrusion assembly can be matched with the mounting assembly to achieve machining operation such as grinding roller chambering on a flange workpiece, the extrusion assembly has a grinding ring pressure limiting function, when the grinding ring pressure is too large, the protection state can be automatically triggered, and the phenomena that the workpiece is excessively deformed and damaged and a lifting motor is overloaded and damaged due to the too large grinding ring pressure are avoided; and stable reaming operation can be carried out on the flange.

The invention relates to the technical field of forging equipment, and provides a conical roller split mechanism, a ring rolling mill and a ring rolling mill assembly method.The conical roller split mechanism comprises a rack, a rotating shaft, connecting rods, conical rollers, hydraulic nuts and fasteners, and the rotating shaft is rotationally connected with the rack; the connecting rod penetrates through the rotating shaft; the conical roller and the hydraulic nut are oppositely arranged at the two ends of the connecting rod and are connected in a threaded screwing mode. The fastener is arranged on the hydraulic nut and used for limiting the stroke of the hydraulic nut. The conical roller and the hydraulic nut are arranged at the two ends of the connecting rod, so that the conical roller can be tensioned through the connecting rod by pressurizing the hydraulic nut, and the conical roller and the rotating shaft are fixed; meanwhile, the connecting rod is connected with the conical roller in a screwed mode through threads, the hydraulic nut serves as a pressurizing piece, the conical roller can be loosened after pressure relief, and therefore the conical roller can be disassembled conveniently, and the structure is simple; and the hydraulic nut of the structure is located on the outer side, overhauling and maintenance can be continued conveniently, and application convenience can be improved.

The invention relates to the technical field of rolling of high-temperature alloy ring forgings, particularly discloses a preparation method of an ultra-large-specification ring piece capable of resisting the temperature of 800 DEG C, and solves the problems that due to the fact that the size of the ring forgings is increased through alloy, cracking is prone to occurring, and the structure property control difficulty is large. The preparation method comprises the following steps that an alloy bar is cut and blanked according to the feeding weight of the ring forge piece, upsetting and punching are conducted on the bar after heat preservation treatment is conducted on the bar at the temperature of 1000-1150 DEG C, trestle chambering is conducted on a cake blank after heat preservation treatment is conducted on the cake blank at the temperature of 1000-1150 DEG C, rolling is conducted after heat preservation treatment is conducted on the cake blank at the temperature of 1000-1150 DEG C, and an alloy forge piece blank is obtained; and then standard heat treatment is conducted, and finally the GH4586 alloy ring forge piece with the diameter ranging from 400 mm to 1600 mm is obtained. According to the preparation process, the cracking tendency of the ring forge piece is greatly reduced, a uniform structure is obtained, and the comprehensive performance of the GH4586 large-size ring forge piece is guaranteed.

The invention relates to a ring rolling machine conical roller convenient to replace, and belongs to the technical field of ring rolling machine conical roller replacement. Comprising a conical roller, a connecting shaft and a rotating shaft are sequentially and fixedly arranged at the rear end of the conical roller, an arc-shaped connecting plate and a front sleeve which are distributed up and down are rotationally arranged on the outer side of the connecting shaft through a connecting assembly, and the front sleeve and the arc-shaped connecting plate are spliced into an outer shell of a cylindrical structure; the connecting cylinder is connected with the electric push rod; the outer side of the conical roller is fixedly sleeved with a wear-resisting layer, the conical roller and the wear-resisting layer are in butt joint through a limiting assembly, the limiting assembly comprises a limiting rod, a plurality of inner side limiting grooves are formed in the outer side face of the conical roller, a plurality of outer side limiting grooves are formed in the inner side face of the wear-resisting layer, and the inner side limiting grooves and the outer side limiting grooves are equal in number and correspond one to one. Limiting rods are inserted into the corresponding inner side limiting grooves and the corresponding outer side limiting grooves. The problem that a conical roller of an existing ring rolling mill is inconvenient to replace is solved.

The utility model relates to the technical field of ring rolling machines, in particular to a flange ring rolling machine which comprises a machine body, an axial ring rolling mechanism is arranged at one end of the machine body, a radial ring rolling mechanism is arranged at the other end of the machine body, and a driving device is erected on the machine body and located between the axial ring rolling mechanism and the radial ring rolling mechanism. The outer wall of the roller shaft is sleeved with a detachable roller sleeve, a supporting device is erected at the position, close to the driving device, in the machine body and comprises a supporting plate, a supporting block, a moving mechanism and a jacking mechanism, the supporting plate is fixedly connected with the moving end of the jacking mechanism, and the supporting block is fixedly connected with the fixed end of the jacking mechanism. The moving mechanism comprises a lead screw and a driving motor erected on the support, a driving shaft of the driving motor is fixedly connected with the lead screw, and the lead screw is sleeved with the supporting block, the problem that the use cost of the main roller is high is solved, and the effect of reducing the use cost of the main roller can be achieved through the detachable roller sleeve.

To provide a form rolling device capable of highly accurately and stably molding a male screw.SOLUTION: A form rolling device 1 includes: a moving die 4 reciprocated in a form rolling direction; a fixing die 3 disposed so as to be converted in a position along an opposite direction; a position conversion pullout bolt 31 and a position conversion pressing bolt 32 for converting a position of the fixing die 3 in the opposite direction by manual operation; an opposite position detection sensor for detecting a position in the opposite direction of the fixing die 3; and a touch panel 37 for notifying first to third present position information detected by the opposite position detection sensor, and previously set first to third set position information. The device allows an operator to adjust a position in the opposite direction of the fixing die 3 while confirming the touch panel 37.SELECTED DRAWING: Figure 1

The invention relates to an automatic vertical ring rolling mill. The technical problems that an existing ring rolling mill is low in automation degree, and a core roller is prone to bending are mainly solved. According to the technical scheme, the automatic vertical ring rolling machine comprises a rack, a motor, a speed reducer, a main body rack, an oil cylinder base, a driving roller, a hydraulic oil cylinder, a machine body main shaft, a transmission shaft, a core roller bearing seat, a lower base, a fixed supporting seat, a core roller, a roller holding machine body, a bearing seat driving oil cylinder and a self-aligning roller bearing. A motor and a speed reducer are arranged at the upper end of the rack, the speed reducer is connected with one end of a transmission shaft, self-aligning roller bearings are arranged at the shaft diameter position of the transmission shaft, and the self-aligning roller bearings are installed on the upper portions of the two sides of the main body rack. The driving roller is installed on the transmission shaft, the lower end of the machine body spindle is connected with a nut arranged on the bottom face of the fixed supporting seat, the roller holding machine body is installed at the upper end of the main machine frame and connected with the hydraulic oil cylinder, and the core roller is installed on the core roller bearing seat which is arranged on the fixed supporting seat.

The invention discloses a preparation method of a high-uniformity aluminum-lithium alloy ring piece, which comprises the following steps: cogging: heating a cast ingot to 460-490 DEG C, preserving heat, then carrying out multidirectional upsetting and drawing cogging, and punching a blank after upsetting and drawing to obtain an annular blank; the annular blank is heated to 410-440 DEG C and then subjected to heat preservation, and then the annular blank is subjected to annular rolling treatment; primary cold deformation: carrying out primary cold deformation treatment on the annular blank subjected to ring rolling treatment; solid solution is conducted, specifically, the annular blank subjected to primary cold deformation treatment is heated to 515-530 DEG C, then heat preservation is conducted, and then quenching is conducted; secondary cold deformation: carrying out secondary cold deformation treatment on the annular blank subjected to solution treatment; and the annular blank subjected to secondary cold deformation treatment is subjected to aging treatment. The prepared aluminum-lithium alloy ring piece is good in mechanical property in the tangential direction, the radial direction and the axial direction, small in elongation difference, good in structure uniformity and capable of better meeting actual requirements.

The invention relates to a method for forming a GH4169 alloy thin-wall ring piece, which comprises the following steps of: forging two pieces in the height direction in a combined manner, and designing a specific forging drawing, preparing a bar material, manufacturing a blank, rolling, carrying out heat treatment, turning and carrying out flaw detection, for example, designing the small allowance of the outer diameter and the inner diameter of the forging drawing, smelting the bar material in a specific specification by using a triple process, the method has the beneficial effects that the rolling stability is improved, the grain structure is refined, raw materials are saved, the production efficiency is doubled, the flaw detection requirement is met, and the method is suitable for manufacturing related parts in the aerospace field and has wide application prospects and important popularization value.

The invention belongs to the technical field of aviation annular forge piece forming, and discloses a GH4141 high-temperature alloy special-shaped high-vortex casing ring forge piece and a forming method thereof, and the forming method comprises the steps of blanking, upsetting punching, trestle chambering, rectangular pre-rolling, special-shaped pre-rolling and special-shaped finish rolling; the first forging temperature in upsetting punching is 1040-1110 DEG C, the second forging temperature in trestle chambering is 1000-1080 DEG C, the third forging temperature in rectangular pre-rolling is 1040-1060 DEG C, the fourth forging temperature in special-shaped pre-rolling is 1040-1060 DEG C, rolling is performed through at least one heating number, the fifth forging temperature in special-shaped final rolling is 1040-1060 DEG C, and a ring blank is rolled into a ring forging through at least one heating number; and the blank is locally wrapped before the special-shaped pre-rolling and the special-shaped finish rolling are heated. The problems that the GH4141 high-temperature alloy ring forge piece is prone to cracking and uneven in structure in the forging process are solved, the prepared ring forge piece meets the product requirement, the rejection rate is greatly reduced, and crystal grains of the forge piece are even.

An electrode plate manufacturing apparatus for a secondary battery includes a supply reel configured to supply a substrate, the substrate having a first surface that is uncoated and a second surface that is at least partially coated, and a patterner adjacent to the supply reel, the patterner including a polygon roller and a support roller facing each other, the patterner being configured to pattern the substrate passing between the polygon roller and the support roller, and the polygon roller including convex curved portions that extend in an axial direction of the polygon roller and that are arranged in a circumferential direction of the polygon roller.

The invention discloses a preparation method of a high-impact-toughness super-large-specification Ti80 titanium alloy ring forging, and belongs to the technical field of high-quality titanium alloy materials. The method comprises the following steps: preparing a cast ingot; the prepared cast ingot is subjected to multi-heating-number forging, and a cake blank is obtained; the prepared cake blank is subjected to ring rolling forging, and an annular blank is obtained; and the prepared annular blank is subjected to heat treatment, and the titanium alloy ring forging is obtained. According to the titanium alloy ring forging process adopted by the invention, on the premise of eliminating the longitudinal welding seam, the overall structure uniformity of the pressure-resistant shell can be ensured, and the mechanical property is stable. By designing a reasonable processing route and formulating optimal processing parameters, the uniformity of the material structure is improved, and the manufacturing safety and reliability of the pressure-resistant shell are improved. The method is suitable for preparing the Ti80 titanium alloy ring forge piece with the outer diameter of 4000-10000 mm, the wall thickness of 100-500 mm and the piece weight larger than or equal to 8 t.

The invention discloses a continuous casting quality closed-loop management method and system based on an industrial large model and a program product, and the method specifically comprises the steps: collecting and fusing high-frequency sensor data and multi-source heterogeneous data in a continuous casting process, and constructing a digital twin body in a casting blank solidification process; inputting the digital twin data into an industrial large model fused with physical constraints to carry out defect prediction and working condition identification; dynamically adjusting the vibration frequency of the crystallizer and the water volume ratio of the secondary cooling area by using fuzzy PID and a model predictive control algorithm; determining a hot rolling link compensation scheme by combining a hot rolling process compensation knowledge base; and carrying out online incremental training on the industrial large model by utilizing transfer learning and gradient cutting technologies to realize closed-loop management. According to the method, the problem of data islands of the continuous casting process is effectively solved, the whole-process closed-loop quality management is realized, the production stability and the product quality of steel continuous casting are remarkably improved, and the rejection rate and the production cost are reduced.

The invention relates to the technical field of thread rolling machines, one embodiment of the invention provides an iron accessory thread rolling machine convenient for cleaning scrap iron, the iron accessory thread rolling machine comprises a base, and further comprises supporting seats, a supporting block, a first motor, a feeding mechanism and a cleaning mechanism, the two supporting seats are fixedly arranged on the supporting seats, and a supporting frame is mounted on the side walls of the sides, close to each other, of the supporting seats; two supporting seats are arranged on the base, thread rolling wheels are rotationally arranged in the supporting frames, the supporting blocks are fixedly arranged on the base and located on one sides of the two supporting seats, first motors are installed on the supporting blocks and located on one sides of the thread rolling wheels, the output ends of the first motors are fixedly connected with the adjacent thread rolling wheels, and the feeding mechanism is arranged on the base and used for feeding materials between the two thread rolling wheels. And the cleaning mechanism is arranged between the two supporting seats and used for cleaning scrap iron generated in the thread rolling process, and through the technical scheme, the technical problem that in the prior art, scrap generated in the thread rolling process of a thread rolling machine is inconvenient to clean is solved.

The invention relates to the technical field of wind power flange machining, in particular to an automatic rolling device for a wind power L-shaped flange and a using method of the automatic rolling device. Through arrangement of a frame body, a pressing mechanism, a linkage mechanism, a core roller mechanism, a pushing assembly and a feeding assembly, firstly, the feeding assembly is matched with the pushing assembly for use, and therefore the number of parts needing to be rolled is reduced in the feeding process; the problem that the blank needs to be lifted up due to the fixed protective plate is solved, and the situation that the blank falls off is reduced in the feeding process; meanwhile, after the pushing assembly receives the blank, the blank is automatically dumped and fed, the blank is fed to the core roller mechanism and extends out of the core roller mechanism, the core roller mechanism and the blank are connected with the linkage mechanism while feeding is achieved, the linkage mechanism can draw close the core roller mechanism and the blank to the driving mechanism, and in the drawing-close process, automatic movement of the linkage mechanism is achieved; and auxiliary positioning is conducted on the outer ring face of the blank, and the machining quality and efficiency are improved.

The invention discloses a rolling method of a special-shaped ring piece for a large GH4738 alloy casing of an aero-engine, which comprises the following steps: S1, preparing a ring blank: blanking, upsetting, punching, chambering and pre-rolling raw materials in sequence to prepare the ring blank; s2, special-shaped blank manufacturing is carried out, multi-pass preforming is carried out on the ring blank through a moulding bed and a plurality of special-shaped punches with different punch angles, and the inner and outer diameter contours of the ring blank are made to be close to the special-shaped contour of the target cartridge receiver part step by step; s3, special-shaped ring rolling is conducted, specifically, a special-shaped main roller and a special-shaped core roller are used for rolling the ring blank subjected to special-shaped blank making in the step S2, and a near-net-shaped formed special-shaped ring piece is obtained; and S4, heat treatment and machining are conducted on the special-shaped ring piece manufactured in the step S3. Through the optimized special-shaped blank making and special-shaped ring rolling process, near-net forming of the casing forge piece is achieved, the allowance of a product is optimized, and the utilization rate of raw materials is increased.

The invention discloses a downward pressing type T-shaped wind power flange ring rolling device and a using method thereof. The device comprises a machining table which comprises a table plate and a support arranged on the bottom side of the table plate; the ring expanding mechanism is arranged in the middle of the top side of the table plate, the two ring rolling mechanisms are symmetrically arranged, the ring rolling mechanisms are arranged on the table plate and located on the two sides of the ring expanding mechanism, and the rolling shafts are annularly distributed on the table plate. The ring expanding device is provided with the ring expanding mechanism, two rotating shafts are driven by a driving device to rotate and expand outwards at the same time, ring expanding machining of a ring blank is achieved, in the ring expanding process of the ring blank, a rolling part is pushed to move through pushing force generated when the ring blank is expanded, two conical pressing rollers of the rolling part are made to get close to each other to roll the ring blank, and therefore the ring blank expanding efficiency is improved. The ring rolling device has the advantages that the structure is simple, the size is small, the occupied space is reduced, the device is convenient to use flexibly, the number of driving equipment of the device is small, the energy consumption is reduced, and the practicability of the device is improved.

The invention discloses a low-stress processing method of an aluminum alloy annular forge piece, which comprises the following steps of: heating an aluminum alloy bar, preserving heat, upsetting, punching, pre-rolling, finally rolling into a ring piece, carrying out solution treatment on the ring piece, adopting an aqueous medium at the temperature of more than or equal to 85 DEG C during solution cooling, carrying out cold bulging after solution treatment, controlling the bulging quantity to be 1.8-2.2%, carrying out aging treatment after bulging, and finally carrying out low-stress processing on the ring piece. And thus, the low-stress aluminum alloy ring piece is obtained. According to the method, the residual stress of the aluminum alloy ring piece can be effectively removed, and the forge piece performance is improved. The method is used for machining the aluminum alloy annular forgings.

The invention belongs to the technical field of machine vision, and particularly relates to a radial-axial ring forging automatic control method based on contour real-time extraction. The automatic control method for controlling the roundness of the ring forge piece is designed according to the technological parameters of the radial-axial ring forging technology and the forge piece deformation mechanism through the machine vision and the contour recognition technology, and real-time automatic control over the ring piece in the intelligent ring forging process can be achieved. The method has good feasibility, and the machining efficiency and the forging quality are effectively improved.

The invention relates to a preparation method of a TC4 titanium alloy ring forge piece, in particular to the field of titanium alloy ring forge pieces, which comprises the following steps: sequentially carrying out cast ingot cogging, forging, punching, chambering, rolling and annealing on a TC4 titanium alloy cast ingot to obtain the TC4 titanium alloy ring forge piece; the forging comprises first forging, second forging, third forging, fourth forging, heat treatment and upsetting treatment which are sequentially carried out; the radial growth speed of the ring is controlled to be 0.5-1 mm / s when rolling is started, and the radial growth speed of the ring is controlled to be 0.1-0.2 mm / s when the surface temperature of the blank is 750-850 DEG C. According to the preparation method provided by the invention, the preparation process is reasonably designed, so that a fine beta-phase transformation structure is obtained during rolling forming, the primary alpha-phase content is controlled to be 20-55% of a lamellar fine grain structure, the mechanical property of the obtained forge piece is improved, and the preparation method does not need equipment transformation and is suitable for large-scale production. And production and manufacturing can be completed by using existing equipment.

The invention discloses an electric auxiliary roll forming device, and relates to the technical field of annular part plastic processing, the electric auxiliary roll forming device comprises a rolling device and an electric auxiliary device, the rolling device is provided with a conductive core roller and a feed roller, the core roller is sleeved with a to-be-formed annular blank, and the core roller and the feed roller are oppositely arranged on the annular inner side and the annular outer side of the annular blank; the axes of the ring blank, the core roller and the feeding roller are located on a first plane, a common vertical line of the axes of the ring blank, the core roller and the feeding roller is arranged on the first plane, and the feeding direction of the feeding roller is consistent with the common vertical line; the electric auxiliary device comprises a first carbon brush and a second carbon brush, the first carbon brush and the second carbon brush are suitable for being electrically connected with two electrodes of an external power source respectively, the first carbon brush makes contact with the axial end of the core roller, the first carbon brush is electrically connected with the core roller, the second carbon brush makes contact with the axial end of the feeding roller, and the second carbon brush is electrically connected with the feeding roller. Compared with the prior art, the annular part can be electrically heated in an auxiliary mode, and the performance of the plastically-machined annular part is good.

The application discloses a preparation method of a GH4738 alloy ring forge piece with uniform grains, and comprises the following steps: step (1), sawing GH4738 bars and sampling to perform a gamma phase full solution temperature test; step (2), heating and heat preservation; step (3), upsetting and punching the bar blank to form a ring blank 1; step (4), heating and heat preservation; step (5), hole expanding of a mandrel and a mandrel holder to obtain a ring blank 2; step (6), heating and heat preservation; step (7), breaking to a ring blank 3; step (8), heating to a gamma phase solution temperature and heat preservation; and step (9), ring rolling of a plurality of heating and small deformation times to form a shaped ring blank 4, namely a forge piece. The method of high-temperature large deformation blanking, low-temperature small deformation pre-rolling and three times of heating at a gamma phase solution temperature and small deformation final rolling is adopted to produce the GH4738 special-shaped machine case ring forge piece, and the problems of forging cracking, non-uniform grain size, large mechanical property fluctuation, creep exceeding the standard, ultrasonic flaw detection exceeding the standard and deformation in a machining process of the GH4738 special-shaped machine case ring forge piece are solved.

The invention relates to a roller (10, 11) for a rotary manufacturing process, wherein the roller (10, 11) has at least one embossing element (1) and at least one cutting element (3, 4, 5, 9). The invention further relates to an embossing and cutting tool (100), a rotary manufacturing process, a half-plate produced by the rotary manufacturing process, and a bipolar plate comprising two half-plates.

The invention discloses a martensitic heat-resistant steel forging and a forging method thereof, and belongs to the technical field of forging manufacturing. The martensitic heat-resistant steel forging of the invention uses a steel ingot obtained by smelting molten steel as a raw material, and the molten steel includes the following components by weight percentage: C0.13-0.17%, Si<0.50%, Mn<0.50%, P<0.030%, S<0.015%, Cr11.00-12.00%, Ni1.80-2.10%, Mo1.10-1.65%, V0.20-0.30%, Nb0.20-0.30%, W0.70-1.00%, N0.02-0.08%, and the balance is Fe and unavoidable impurities. The invention solves the mixed crystal phenomenon caused by grain inheritance in existing martensitic heat-resistant steel forgings by improving the raw material ratio and forging process. The prepared forgings have fine grains and excellent structural uniformity, ensuring high strength while avoiding cracking of the forgings.

The utility model relates to the technical field of ring rolling mill holding roller positioning, and discloses a vertical ring rolling mill holding roller rolling positioning device which comprises a vertical workbench, a main roller is installed on the front side of the vertical workbench, and a core roller is arranged on the lower side of the main roller. The carrier roller support is connected with the fixed shaft in an inserted mode, the rotating shaft is connected with the vertical workbench in a rotating and clamping mode, a first half-threaded sleeve is installed at the front end of the rotating shaft, a second half-threaded sleeve is hinged to the first half-threaded sleeve, an abutting ring is installed on the outer wall of the second half-threaded sleeve, and a supporting ring is further installed on the rotating shaft. The side, facing the second half-threaded sleeve, of the supporting ring is provided with an abutting spring, the abutting spring is connected with the rotating shaft in a sleeving mode, the end, away from the supporting ring, of the abutting spring is provided with a limiting sleeve, the limiting sleeve is extruded towards the side facing the supporting ring, the limiting sleeve is disengaged from sleeving of the second half-threaded sleeve, and at the moment, the second half-threaded sleeve can be turned over; and after overturning, the threaded rod and the carrier roller bracket are directly taken down.

The invention discloses a method for rolling a wind power top flange through a core roller double-station die, and belongs to the technical field of wind power top flange rolling forming. A rolling device is included and comprises a main roller, the core roller double-station die, a conical roller and a rolling platform, and a stepped circular truncated cone structure is arranged on the core roller double-station die; comprising a thinner first rolling section and a thicker second rolling section; the method comprises the following steps; s1, rolling the blank through a first rolling section of the core roller double-station mold to form a circular ring with a rectangular section; and S2, near-net forming radial rolling is conducted on the blank through the first rolling section and the second rolling section of the core roller double-station mold together. The core roller double-station die is adopted to continuously apply acting force to the main roller in the diameter direction and the conical roller in the height direction, the rectangular section is formed into the special-shaped section, only stations need to be switched, the machining efficiency is improved, the production cost is reduced, raw materials are saved, the first rolling section is independently used for rolling the ring piece with the rectangular section, and universality is good.

The ring rolling mill for producing the flange comprises a base and a vertical rod extending upwards from the upper wall of the base, and further comprises a supporting plate, a driving wheel, a supporting wheel and a pressing wheel, the supporting plate is fixedly connected to the upper portion of the vertical rod, the driving wheel is rotationally connected to the middle of the end face of the supporting plate, and a sliding groove is formed in the end face of the supporting plate. Sliding blocks are arranged in the sliding grooves in a sliding mode, the sliding blocks are movably adjusted in the length direction of the sliding grooves through driving assemblies, the supporting wheels are slidably adjusted in the length direction of the sliding grooves through the sliding blocks, the supporting wheels and the driving wheels are arranged on the same side, and a connecting plate is fixedly connected to the upper wall of the supporting plate; the pressing wheel is movably connected to the bottom of the connecting plate through an adjusting assembly and located above the driving wheel. The utility model belongs to the technical field of flange production equipment, particularly relates to a ring rolling mill for flange machining, and aims to enhance the stability of rotating rolling of annular workpieces.