CN112496212A

CN112496212A - Forming device and forming method of annular part

Info

Publication number: CN112496212A
Application number: CN202011290809.4A
Authority: CN
Inventors: 杨乾兰
Original assignee: Chongqing Jiaohang Technology Co ltd
Current assignee: Chongqing Jiaohang Technology Co ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-03-16

Abstract

The invention relates to the technical field of manufacturing and forming, and provides a forming device and a forming method for a thin-wall annular piece, wherein the structure comprises the following components: the core roller comprises a fixed seat, a driving roller and a profile roller which are movably connected with the fixed seat, and a driving part, wherein the profile roller is embedded in an inner cavity of the driving roller, the driving part is connected with the profile roller in a driving way through the driving roller, and the core roller performs feeding motion along the radial direction of the profile roller. According to the forming device of the revolving body provided by the embodiment of the invention, the problem that the thin-wall revolving body is difficult to form is solved, the production of the thin-wall revolving body is realized, the problem of plastic instability is solved, and the limitation on the wall thickness of a thin-wall part is broken through.

Description

Forming device and forming method of annular part

Technical Field

The invention relates to the field of manufacturing of rotary bodies, in particular to a forming device and a forming method for a rotary body of a thin-wall annular part.

Background

The revolving body in the annular piece is widely applied to many industrial fields of aerospace, petrochemical industry, energy traffic, ships, weapons, metallurgy and the like. At present, the production process of the revolving body mainly adopts rolling. The rolling of the revolving body is mainly carried out on a vertical ring rolling machine or a horizontal ring rolling machine, and the rolling of the revolving body is a main manufacturing technology of various seamless revolving bodies such as bearing rings, gear rings, flange rings, aircraft engine casings, gas turbine sealing rings and the like.

At present, the revolving body has four forming modes: reaming a trestle, rolling and forming by a rolling mill, then correcting and flash welding and forming after rolling, wherein:

reaming a saddle, namely performing local deformation on the prepared ring blank by using simple tools such as a saddle, a saddle bar and the like, so that the outer diameter of the ring blank is continuously increased, and the wall thickness is continuously reduced;

the ring rolling forming is also called ring rolling expansion, the ring is subjected to continuous local plastic deformation by means of ring rolling equipment, so that the plastic processing technology of radial wall thickness reduction, internal and external diameter expansion and section profile forming is realized, a driving roller performs rotary rolling motion during ring rolling, a core roller performs radial linear feed motion, a centering roller applies force on the outer circumference of the ring to realize centering, an end face roller performs rotary end face rolling motion and axial feed motion, and the end face of the ring is kept in a horizontal state;

a flash welding ring piece adopts an extruded section as a material, bends the section, then shapes a joint of a part to be welded, adopts a special flash welding machine to carry out butt welding, has irregular roundness of the ring piece after butt welding, and adopts an expanding machine to carry out expansion and roundness correction on the ring piece.

However, the above processing techniques all have certain limitations:

the forming is carried out in a trestle reaming mode, the ring piece has a certain degree of hammer marks due to continuous hammering in an outer diameter area, the dimensional precision of the ring piece cannot be accurately controlled, the ring piece is easy to have an ellipse, and the process allowance from a forged piece to rough machining of a product is large;

in the production of a vertical or horizontal ring rolling machine, a main roller, a centering roller and a ring piece are in contact with each other in an circumcircle mode, the centering roller applies pressure on the outer circumference of the ring piece, the minimum wall thickness of the ring piece required by the rigidity condition of the ring piece exists, and when the minimum wall thickness requirement of the ring piece is not met, the ring piece is deformed plastically and is pressed to be oval or flattened. (book "theory and technology of Ring Rolling" chapter II, first section);

when a trestle reaming or ring rolling machine is used for producing the ring with the special-shaped section, the wall thickness of the ring is reduced while the inner diameter and the outer diameter of the ring are enlarged, and for the complex ring with the special-shaped section, the flow filling of the sectional material can be realized only by sufficient deformation, so that the production of the complex ring with the special-shaped section is not easy to realize for the thin-wall ring and the medium-small ring;

an expansion machine is adopted to expand an inner circle or an outer circle of a tool, the dimensional accuracy of the inner diameter or the outer diameter is mainly improved, and the unfilled condition of the local area of the special-shaped ring is difficult to improve due to small deformation and unidirectional deformation in the shape correction process; for the expansion or excircle contraction of the ring piece, the phenomenon of springback quantity appears after the ring piece is taken out of the tooling die, so that the control of the dimensional precision still has certain limitation;

the flash welding forming can produce ring parts with thin wall thickness, and special sections need to be bent, flash butt welded and then expanded to round, and certain differences exist between the structure and performance of a flash butt welding area and a body.

In summary, it is found that in the prior art, different problems exist in the forming of the thin-walled revolving body, and certain requirements are imposed on the wall thickness after the revolving body is formed, the minimum wall thickness is usually 20mm, the processing precision is difficult to guarantee, the processing allowance is large, defects such as ellipse and bell mouth are easy to occur, and the consistency of the formed revolving body is poor. Meanwhile, for the revolving body, when a closed structure is adopted for forming, due to structural limitation, the irregular revolving body with irregular appearance cannot be taken out. In the forming process of the revolving body in the prior art, wall thickness reduction, local extrusion filling and diameter growth of the special-shaped ring occur simultaneously, and sufficient deformation is needed to realize complete filling of local area materials of the special-shaped ring, so the complexity of the special-shaped ring is limited.

Therefore, a need exists for a forming device for an annular part revolving body, which is used for solving the problem of difficult forming of a thin-walled revolving body, realizing the production of thin-walled revolving bodies made of various materials, solving the problem of plastic instability, breaking through the limitation on the wall thickness of the thin-walled part, realizing full-contact closed rolling, ensuring the forming accuracy of special-shaped ring parts, reducing the process allowance of the thin-walled revolving body, and well solving the problem that the special-shaped ring parts with irregular shapes cannot be taken out after forming while realizing the sufficient filling of materials of all parts of the complicated special-shaped cross sections.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the forming device of the annular part, which can realize the production of thin-wall revolving bodies made of various materials, solve the problem of plasticity instability, break through the limitation on the wall thickness of the thin-wall part, realize full-contact closed rolling, meet the forming requirement of complex special-shaped ring parts, ensure the forming accuracy of the revolving bodies, reduce the process allowance of the thin-wall revolving bodies, and well solve the problem that the irregular-shaped revolving bodies with irregular shapes cannot be taken out after the materials at all parts of the complex special-shaped sections are fully filled by adopting an inner-outer layer combined structure.

In a first aspect of embodiments of the present invention, there is provided a device for forming a body of revolution of a ring-shaped member, including: the fixing base, detachable installs on the fixing base, and with fixing base swing joint's drive roller and type roller to and the drive division of being connected with drive roller and type roller drive, wherein, the type roller nestification is in the inner chamber of drive roller, with the drivable connection of drive roller, the drive division sets up the periphery side at the drive roller, gives the type roller power transmission through the drive roller, still including setting up at the type roller inner chamber, can follow the core roller of the radial feed motion of making of type roller, reserve the shaping space of placing the work piece between core roller and the type roller.

According to the forming device of the revolving body provided by the embodiment of the invention, through the combined action of the core roller and the profile roller, the problem of difficult forming of the thin-wall revolving body is solved, the production of the thin-wall revolving bodies made of various materials is realized, the problem of plastic instability is solved, the limitation on the wall thickness of the thin-wall part is broken through, the full-contact closed rolling is realized, the forming accuracy of the revolving body is ensured, and the process allowance of the thin-wall revolving body is reduced.

In some embodiments, the drive section is in geared connection with the drive roller.

In some embodiments, the drive portion and the drive roller are cogged with their surface, and the drive portion and the drive roller operate in continuous meshing engagement through their cogs.

In some embodiments, the mold roll comprises a first mold roll and a second mold roll integrally connected and coaxially disposed, the second mold roll being nested within the first mold roll, wherein the outer surface of the first mold roll is connected to the drive roll and the inner surface of the second mold roll is profiled.

In some embodiments, the mating surfaces between the first and second type rolls are inclined at an angle of 0.5 ° to 25 °.

In some embodiments, the second type roller is a split type roller, and is formed by combining at least two segments which are combined together to form a complete circle.

In some embodiments, the measuring device further comprises a measuring roller for detecting the size of the processed revolving body in real time, the measuring roller is telescopically arranged along the radial direction of the driving roller, and a roller of the measuring roller abuts against the inner side wall of the revolving body and moves along with the inner circumference of the revolving body.

In some embodiments, the device further comprises a centering roller for auxiliary forming, wherein the centering roller is arranged on the inner circle side of the revolving body and is in follow-up contact with the inner circumference of the revolving body through displacement and/or pressure control.

In some embodiments, the centering rollers include a first centering roller and a second centering roller, and the first centering roller and the second centering roller are symmetrically distributed along the radial direction of the profile roller.

In a second aspect, a method for forming a revolving body is further provided, which utilizes the above-mentioned revolving body forming device, and comprises the following steps:

s101, loading a to-be-machined revolving body into a profile roller, and enabling the outer circumferential surface of the to-be-machined revolving body to be in inscribed contact with the inner circle of the profile roller;

s102, the driving roller is driven by the driving part to rotate;

s103, the core roller performs feed motion along the radial direction of the molding roller under the action of a power source, and a roller of the core roller performs follow-up motion around the axis of the roller and the inner circumferential surface of the revolving body;

s104, under the combined action of the core roller and the shaping roller, the wall thickness of the revolving body to be processed is reduced, the diameter of the revolving body to be processed is increased until the outer circumferential surface of the revolving body to be processed is attached to the inner circumferential surface of the shaping roller, and the inner diameter size of the inner circle meets the requirement, or the measuring roller measures the diameter size of the inner circumference of the revolving body in real time, the measured inner diameter size meets the requirement, the outer circumferential surface of the revolving body is attached to the inner circumferential surface of the shaping roller, and the deformation is completed;

s105, the core roller retreats, and the driving roller stops rotating until the molding roller, the driving roller and the revolving body stop rotating;

and S106, ejecting the molded revolving body, or ejecting the molding roller and the molded revolving body together, and then ejecting the revolving body and the second molding roller from the first molding roller, so that the revolving body is separated from the molding roller, and then the machining is finished.

According to the forming method provided by the embodiment of the invention, after the outer circumferential profile of the revolving body is contacted with the profile of the forming roller, the core roller can continue to perform a small amount of feeding motion, so that the material in the local area of the section of the special-shaped ring piece is completely filled, the outer diameter of the revolving body is not increased any more due to the limitation of the forming roller, the shape and the size of the revolving body can be accurately controlled, the measuring roller measures the diameter of the inner circumference of the revolving body in real time, and the wall thickness of the ring.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic diagram of a ring forming apparatus according to an embodiment of the present invention;

FIG. 2 is another schematic diagram of a ring forming apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic view of a drive roller of a loop forming apparatus according to an embodiment of the present invention;

FIG. 4 is a partial schematic view of a drive roller of the loop forming apparatus according to an embodiment of the present invention;

FIG. 5 is a schematic view showing the configuration of a forming roll of the ring forming apparatus according to the embodiment of the present invention;

FIG. 6 is another schematic view of the configuration of the forming rolls of the ring forming apparatus according to the embodiment of the present invention;

fig. 7 is a schematic structural diagram of an ejection device of the ring forming device according to the embodiment of the invention.

Reference numerals:

the device comprises a fixed seat 10, a driving roller 20, a first driving roller 21, a second driving roller 22, a mold roller 30, a first mold roller 31, a second mold roller 32, a driving part 40, a core roller 50, a measuring roller 60, a centering roller 70, a first centering roller 71, a second centering roller 72, a balance roller 80, a first balance roller 81, a second balance roller 82, a bottom plate 90, an ejection device 91 and a revolving body 100.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

A ring forming apparatus according to an embodiment of the present invention will be described below with reference to fig. 1 to 5.

As shown in fig. 1 and fig. 2, a device for forming a rotor of a ring-shaped member according to an embodiment of the present invention is used for forming a rotor 100, and includes: the device comprises a fixed seat 10, a driving roller 20 and a profile roller 30 which are detachably mounted on the fixed seat 10 and movably connected with the fixed seat 10, and a driving part 40 which is in driving connection with the driving roller 20 and the profile roller 30, wherein the profile roller 30 is nested in an inner cavity of the driving roller 20 and is in driving connection with the driving roller 20, the driving part 40 is arranged on the outer peripheral side of the driving roller 20, power is transmitted to the profile roller 30 through the driving roller 20, the device also comprises a core roller 50 which is arranged in the inner cavity of the profile roller 30 and can perform feeding motion along the radial direction of the profile roller 30, and a forming space for placing a workpiece is reserved between the core roller 50 and the profile. According to the forming device of the revolving body of the embodiment of the invention, the revolving body 100 to be processed is placed between the core roller 50 and the mold roller 30, the driving part 40 drives the mold roller 30 to rotate through the driving roller 20, meanwhile, the core roller 50 makes a feeding motion along the radial direction of the mold roller 30, the revolving body 100 is extruded and deformed under the combined action of the mold roller 30 and the core roller 50, the wall thickness is gradually reduced, the diameter is gradually increased, after the target wall thickness is reached, the core roller 50 makes a motion far away from the mold roller 30 along the radial direction of the mold roller 30, and the processing and forming of the revolving body 100 are completed. According to the forming device of the revolving body provided by the embodiment of the invention, through the combined action of the core roller 50 and the shaping roller 30, the problem of difficult forming of the thin-wall revolving body is solved, the production of the thin-wall revolving bodies made of various materials is realized, the problem of plastic instability is solved, the limitation on the wall thickness of the thin-wall part is broken through, the full-contact closed rolling is realized, the forming accuracy of the revolving body is ensured, and the process allowance of the thin-wall revolving body is reduced.

In some embodiments of the present invention, as shown in fig. 3, in order to improve the transmission efficiency and achieve the transmission of large torque force, the driving portion 40 is connected with the driving roller 20 through a gear transmission. Preferably, the driving part 40 and the driving roller 20 are machined with gear teeth, and the driving part 40 and the driving roller 20 are operated by continuous engagement of the gear teeth machined on the surfaces thereof. In some embodiments of the present invention, as shown in fig. 1, 2 and 4, the fixing base 10 is formed with a mounting base, and the driving roller 20 is movably connected with the mounting base of the fixing base 10 through a bearing. Preferably, the mounting seat of the national standard 10 is processed into a circular shape, and a bearing is interposed between the contact surface of the national standard 10 and the driving roller 30. Furthermore, in order to reduce the vertical movement in operation and offset the load-unbalance force caused by uneven load, three sets of bearings are adopted and are respectively arranged on the upper side surface and the lower side surface of the mounting seat of the fixing seat 10 and between the contact surfaces of the mounting seat of the fixing seat 10 and the circumferential side surface of the driving roller 20, and the driving roller 20 is of an integrated or split structure.

Optionally, for convenience of processing and installation, the driving roller 20 is of a split design, and includes a first driving roller 21 and a second driving roller 22 which are coaxially connected into a whole and are arranged in a co-motion manner, and an outer diameter of a connection end of the first driving roller 21 and the second driving roller 22 is smaller than an outer diameter of the second driving roller 22, so as to form an open cavity for connecting with the fixing base 10.

It can be understood that the opening of the receiving cavity formed at the connecting end of the first driving roller 21 and the second driving roller 22 is configured to be suitable for the size of the boss of the fixing base 10.

In some embodiments of the present invention, as shown in fig. 4, the opening of the receiving cavity formed at the connection end of the first driving roller 21 and the second driving roller 22 is larger than the size of the boss of the fixing base 10. The first driving roller 21 and the second driving roller 22 are connected integrally in this way, and the connection between the driving rollers 20 is ensured to be stable.

In some embodiments of the present invention, the form roller 30 is drivingly connected to the inner circumferential surface of the driving roller 20, and performs a circumferential rotation motion along with the operation of the driving roller 20, and under the cooperation with the core roller 50, the compression deformation of the revolving body 100 is realized, so that the outer circumference, the upper end surface and the lower end surface of the revolving body 100 are then in contact with the form roller 30 until the outer surface of the revolving body 100 fills the inner circle of the form roller 30, and the size of the outer surface of the revolving body 100 is the same as the current size of the inner circle of the form roller 30, thereby completing the machining and forming of the revolving body 100, and thus, the inner circle of the form roller 30 is used as a closed-loop limitation, thereby ensuring the forming precision, realizing high precision, less-allowance forming processing, and well overcoming the problem that the existing revolving body is prone to have defects of ellipse, bell.

Preferably, the form roller 30 is provided separately from the drive roller 20. Specifically, the mold roller 30 is arranged in a contact manner along the radial direction of the driving roller 20 in a separable manner, so that the mold roller 30 can be separated along the radial direction of the mold roller under the action of force, the mold roller 30 with different specifications and sizes can be replaced, and the molding requirements of the revolving bodies with different size requirements can be met.

In some embodiments of the present invention, as shown in FIG. 4, the form roll 30 may be of any suitable construction, for example, the form roll 30 may be formed as a unitary body after a stripping operation, or may be formed as a unitary body by combining a plurality of components. Specifically, the mold roll 30 includes a first mold roll 31 and a second mold roll 32 connected in one piece and disposed in a co-motion manner, the second mold roll 32 is nested inside the first mold roll 31 and disposed in a coaxial manner, wherein the outer surface of the first mold roll 31 is connected with the driving roll 20, and the inner surface of the second mold roll 32 is a molded surface. In this way, by designing the mold roll 30 to have a split type combined structure, it is easy to machine the mold roll 30 and to machine a rotary body having a special surface requirement. Alternatively, the mating surfaces between the first type roll 31 and the second type roll 32 are arranged at an angle of 0.5 ° to 20 °. Alternatively, the second mold roll 32 is a split structure, and is formed by combining at least two segments that together form a complete circle. From this, through adopting split type design with second type roller 32, after the rolling is accomplished, ejecting from first type roller 31 with second type roller 32 and solid of revolution 100 together, then take out the chunk of second type roller 32 respectively, can obtain complete dysmorphism cross section solid of revolution, very meeting solution among the prior art the irregular heterotypic solid of revolution of external surface is rolled and is taken out difficult industry difficult problem after.

In the embodiment of the application, the forming roller provided by the invention is detachably designed with the driving roller, so that the forming rollers with different sizes can be conveniently replaced, and the forming requirements with the same size can be met; the shaping roller of split type design is adopted, the processing of the solid of revolution that requires special surface is convenient for realize, and the second shaping roller through the combination formula can realize taking out after the shaping of dysmorphism cross-section solid of revolution, solves the difficult industry difficult problem of taking out after the rolling of the irregular shaped solid of revolution of outer surface is accomplished in prior art.

In some embodiments of the present invention, as shown in fig. 1 and fig. 2, a measuring roller 60 for real-time detecting the size of the revolving body 100 being processed is further included, the measuring roller 60 is telescopically arranged along the radial direction of the driving roller 20, and the roller of the measuring roller 60 abuts against the inner side wall of the revolving body 100 and moves along with the inner circle of the revolving body 100.

It will be appreciated that the measuring roller 60 comprises a fixed support on which a movable rotor is movably arranged, said fixed support being marked with a scale, said movable rotor abutting against the inner side wall of the revolution solid 100 and moving therewith. Therefore, the position of the fixed support of the movable rotor abutting against the inner side wall of the revolving body 100 is correspondingly changed in the process of moving along with the inner side wall of the revolving body, and the change of the inner diameter size of the revolving body 100 can be detected in real time through the marked scales.

In some embodiments of the present invention, as shown in fig. 1 and 2, a centering roller 70 for assisting the formation is further included, and the centering roller 70 is disposed on the inner circumferential side of the revolution body 100, and is in follow-up contact with the inner circumference of the revolution body (100) by displacement and/or pressure control. Therefore, the centering roller 70 can keep the revolving body 100 stable in the forming process, and ensure the forming quality. Preferably, the centering rollers 70 include at least two sets of centering rollers to achieve better positioning of the revolving body 100. Specifically, the centering rollers 70 include a first centering roller 71 and a second centering roller 72, and the first centering roller 71 and the second centering roller 72 are symmetrically distributed along the radial direction of the profile roll 30; further, the first centering roller 71 and the second centering roller 72 are symmetrically distributed along a center line connecting the core roller 50 and the profile roller 30. Preferably, a line connecting the centers of the first centering roller 71 and the second centering roller 72 is perpendicular to a line connecting the center point of the rotation body 100 and the core roller 50 in an ideal state. Thus, the center of the rotary body 100 is continuously changed on the center line of the core roll 50 and the mold roll 30 during the molding process, and the current change during the deformation process is kept in a steady state.

Further, in some embodiments of the present invention, as shown in fig. 1 and 2, a balance roller 80 for maintaining smooth force during operation is further included, and the balance roller 80 is disposed on the same side of the driving part 40 and abuts against the outer circumferential surface of the driving roller 20. Therefore, the balance roller 80 arranged on the same side of the driving part 40 well bears the load impact of the driving roller 40 in the transmission process, and the motion load component is offset. It is understood that the balance roller 80 may be composed of a single or a plurality of rollers. For example, in the preferred embodiment of the present invention, the balance roller 80 includes a first balance roller 81 and a second balance roller 82, wherein the first balance roller 81 and the second balance roller 82 are symmetrically arranged in the radial direction of the driving roller 40.

In addition, in some embodiments of the present invention, as shown in fig. 6, in order to facilitate the convenience and accuracy of positioning the revolving body 100 during placement, a bottom plate 90 is further included, which is disposed at the bottom end of the form roller 30 and is located inside the fixing base 10, and the bottom plate 90 is generally circular and includes at least one set of brackets extending in the radial direction. The brackets are spaced along the circumference of the bottom plate 90, whereby the brackets, which are extended in the radial direction, can prevent the revolving body 100 from falling down during the process and ensure accurate positioning between the revolving body 100 and the mold roll 30.

In addition, in some embodiments of the present invention, as shown in fig. 6, in order to facilitate the separation of the ring-shaped member 100 after the forming, at least one set of lifters 91 is further included, which are disposed at the bottom end of the forming roller 30 and are spaced apart from each other along the circumference of the forming roller 30. Preferably, the ejecting device 91 is a telescopic cylinder, and the molded annular part 100 is ejected from the mold roller 30 by hydraulic or mechanical means, or the molded revolving body 100 and the existing roller 30 are ejected together. In addition, in some embodiments of the present invention, a power source for providing power to the driving portion 40 and the core roller 50 is further included, and the power source may be various suitable devices, and may be a driving motor, or a power device with a clutch, and it should be easily understood by those skilled in the art as to the specific power position relationship or other structural shapes for achieving the same function, so that the detailed description thereof is omitted.

In the embodiment of the application, the profile rollers can be separated along the radial direction of the profile rollers under the action force, so that the profile rollers with different specifications and sizes can be replaced, and the molding requirements of the revolving bodies with different size requirements can be met; the molding roller can be conveniently replaced by a design of being separable from the driving roller, so that molding rollers of different sizes can be conveniently replaced, and molding requirements of the same size can be met; the processing of the revolving body with special surface requirements is convenient to realize by adopting the split type design of the profile rolls, the taking-out of the revolving body with the special-shaped section after the shaping can be realized by the combined type second profile roll, and the industrial problem that the revolving body with irregular outer surface is difficult to take out after the rolling of the special-shaped revolving body in the prior art is solved; the size change of the inner diameter of the revolving body can be detected in real time through the movable rotor abutting against the inner side wall of the revolving body; the combined action of the core passing roller and the forming roller solves the problem of difficult forming of the thin-wall revolving body, realizes the production of the thin-wall revolving bodies made of various materials, solves the problem of plastic instability, breaks through the limitation on the wall thickness of thin-wall parts, realizes full-contact closed rolling, ensures the forming accuracy of the revolving body, and reduces the process allowance of the thin-wall revolving body.

In another aspect of the embodiments of the present application, there is also provided a method for forming a revolving body of an annular member, which preferably uses the forming apparatus of the above preferred embodiment, including the steps of:

s101, loading the revolving body 100 to be processed into a profile roller 30, and enabling the outer circumferential surface of the revolving body 100 to be processed to be in contact with the inner circle of the profile roller 30;

s102, the driving roller 20 is driven by the driving part 40 to drive the driving roller 30 to rotate;

s103, the core roller 50 performs feed motion along the radial direction of the profile roller 30 under the action of a power source, and performs follow-up motion around the axis of the core roller and the inner circumferential surface of the revolving body;

s104, under the combined action of the core roller 50 and the profile roller 30, the to-be-processed revolving body 100 is subjected to wall thickness reduction and diameter growth until the outer circumferential surface of the to-be-processed revolving body 100 is attached to the inner circumferential surface of the profile roller 30, and the diameter size of the inner circle meets the requirement;

s105, the core roller 50 retreats, and the driving roller 40 stops rotating until the molding roller 30, the driving roller 20 and the revolving body 100 stop rotating;

s106, the molded rotor 100 is ejected, and the machining is completed.

In some embodiments of the present invention, in some embodiments, before the machining of the to-be-machined revolving body 100 is completed, the method further includes: in the processing process, the measuring roller 60 measures the diameter size of the inner circumference of the revolving body in real time, the measured inner circle size meets the requirement, the outer circumference surface of the revolving body 100 is attached to the inner circumference surface of the shaping roller 30, and the deformation is completed.

In some embodiments of the present invention, in some embodiments, the molded revolving body 100 is a special-shaped revolving body, and when the molded revolving body 100 cannot be ejected, the mold roll 30 and the molded revolving body 100 are ejected together, and then the revolving body 100 and the second mold roll 32 are ejected from the first mold roll 31, thereby completing the separation of the revolving body 100 and the mold roll 30, and completing the processing. According to the forming method of the embodiment of the invention, after the outer circumferential profile of the revolving body 100 is contacted with the profile of the mold roller 30, the core roller 50 can continue to perform a small amount of feeding movement, so that the material in the local area of the section of the special-shaped ring is completely filled, the outer diameter of the revolving body 100 is not grown any more due to the shape limitation of the mold roller 30, and the shape and the size of the revolving body 100 can be controlled locally and/or completely and accurately.

According to the forming method of the embodiment of the invention, the circumferential surface of the part of the revolution body 100 above the height is not contacted with the molding roller 30, the rest part of the revolution body 100 is tightly attached with the molding roller 30, the revolution body 100 rotates along with the molding roller 3, and the molding surface of the core roller 7 is contacted with the ring part area higher than the molding roller 3 and is applied with the feeding motion, so that the spinning effect can be realized.

In the description of the present invention, it is to be understood that the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An apparatus for forming a ring-shaped member, comprising: the fixing seat (10), detachable installs on fixing seat (10), and drive roller (20) and type roller (30) with fixing seat (10) swing joint to and with drive roller (20) and type roller (30) drive connection's drive division (40), wherein, type roller (30) nestification is in the inner chamber of drive roller (20), can driveably be connected with drive roller (20), drive division (40) set up the periphery side at drive roller (20), give type roller (30) power transmission through drive roller (20), still including setting up at type roller (30) inner chamber, can follow the radial core roller (50) of making feed motion of type roller (30), reserve the molding space of placing the work piece between core roller (50) and type roller (30).

2. Device according to claim 1, wherein the drive means (40) is in geared connection with the drive roller (20).

3. An apparatus for forming endless members as claimed in claim 2, wherein said drive means (40) and said drive roller (20) are provided with gear teeth formed on their surfaces, and wherein said drive means (40) and said drive roller (20) are operated by continuous meshing engagement of said gear teeth formed on their surfaces.

4. The device for forming endless members as claimed in claim 1, wherein said form roller (30) comprises a first form roller (31) and a second form roller (32) integrally connected and disposed in a common motion, said second form roller (32) being nested inside said first form roller (31) and disposed coaxially therewith, wherein an outer surface of said first form roller (31) is connected to said drive roller (20) and an inner surface of said second form roller (32) is profiled during forming.

5. An apparatus for forming endless members according to claim 4, wherein the mating surfaces between the first type roll (31) and the second type roll (32) are arranged at an angle of 0.5 ° to 20 °.

6. Device for forming endless elements according to claim 4 or 5, characterised in that the second profile roll (32) is of a segmented construction, consisting of at least two segments which together form a complete circle.

7. The loop forming device according to claim 1, further comprising a measuring roller (60) for real-time detection of the size of the revolving body (100) being processed, wherein the measuring roller (60) is telescopically arranged in a radial direction of the driving roller (20), and a roller of the measuring roller (60) abuts against an inner side wall of the revolving body (100) and moves along with the inner circumference of the revolving body (100).

8. The molding machine for annular members as claimed in claim 1, further comprising a centering roller (70) for assisting molding, said centering roller (70) being provided on an inner circular side of the rotation body (100) and being in follow-up contact with an inner circumference of the rotation body (100) by displacement and/or pressure control.

9. The device for forming endless members according to claim 8, wherein said centering rollers (70) comprise a first centering roller (71), a second centering roller (72), said first centering roller (71) and said second centering roller (72) being symmetrically arranged in the radial direction of the profile roller (30).

10. A method of forming a ring-shaped member, comprising the apparatus for forming a ring-shaped member according to any one of claims 1 to 9, comprising the steps of:

s101, installing the revolving body (100) to be machined into a profile roller (30) to enable the outer circumferential surface of the revolving body (100) to be machined to be in contact with the inner circle of the profile roller (30) in an inscribed mode;

s102, the driving roller (20) is driven by the driving roller (40) to drive the driving roller (30) to rotate;

s103, the core roller (50) performs feed motion along the radial direction of the profile roller (30) under the action of a power source, and a roller of the core roller (50) performs follow-up motion with the inner circumferential surface of the revolving body (100) around the axis of the roller;

s104, under the combined action of the core roller (50) and the profile roller (30), the thickness of the wall of the revolving body (100) to be processed is reduced, the diameter is increased until the outer circumferential surface of the revolving body (100) to be processed is attached to the inner circumferential surface of the profile roller (30), and the diameter of the inner circle meets the requirement,

or the measuring roller (60) measures the diameter size of the inner circumference of the revolving body in real time, the measured inner circle size meets the requirement, the outer circumference of the revolving body (100) is attached to the inner circumference of the profile roller (30), and the deformation is completed;

s105, the core roller (50) retreats, and the driving roller (40) stops rotating until the molding roller (30), the driving roller (20) and the revolving body (100) stop rotating;

s106, ejecting the molded revolving body (100);

or the molding roller (30) and the molded revolving body (100) are ejected together, and then the revolving body (100) and the second molding roller (32) are ejected from the first molding roller (31), so that the revolving body (100) is separated from the molding roller (30), and then the processing is finished.