EP3177419A1 - Machine et procédé de façonnage d'éléments annulaires, tels que machine de laminage et procédé de laminage circulaire d'éléments annulaires - Google Patents

Machine et procédé de façonnage d'éléments annulaires, tels que machine de laminage et procédé de laminage circulaire d'éléments annulaires

Info

Publication number
EP3177419A1
EP3177419A1 EP15767290.8A EP15767290A EP3177419A1 EP 3177419 A1 EP3177419 A1 EP 3177419A1 EP 15767290 A EP15767290 A EP 15767290A EP 3177419 A1 EP3177419 A1 EP 3177419A1
Authority
EP
European Patent Office
Prior art keywords
annular element
roller
machine according
mandrel
along
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP15767290.8A
Other languages
German (de)
English (en)
Other versions
EP3177419B1 (fr
Inventor
Angelo SARTORI
Mario Sartori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Muraro Srl
Original Assignee
Centro Servizi Stipaf C S S - Srl
Centro Servizi Stipaf CSS - Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Centro Servizi Stipaf C S S - Srl, Centro Servizi Stipaf CSS - Srl filed Critical Centro Servizi Stipaf C S S - Srl
Priority to PL15767290T priority Critical patent/PL3177419T3/pl
Publication of EP3177419A1 publication Critical patent/EP3177419A1/fr
Application granted granted Critical
Publication of EP3177419B1 publication Critical patent/EP3177419B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length

Definitions

  • the present invention relates to a machine and a method for shaping annular elements, such as a rolling machine, such as a radial-axial rolling mill.
  • Machines for rolling annular elements, such as bearings, rims or the like, comprising a mandrel, a rolling plate, a support table as well as a pair of frustoconical rollers intended each to treat a portion of a respective side of the annular element.
  • the annular elements or rings to be produced with the rolling machines usually have recess portions and protruding portions and during the rolling process it is necessary to obtain a correct conveying of the material between respective zones of the annular element, a function that sometimes, with the rolling machines proposed thus far, cannot be implemented as desired and in a sufficiently versatile manner.
  • the protruding portions of the annular elements are subjected to very high shear forces and can therefore constitute blockage or obstacle zones, which involve the interruption of the process, or limit the production efficiency of the latter.
  • JPS56165507A and JPH02133131A teach respective machines according to the prior art.
  • One object of the present invention is to provide a new machine for shaping at least one annular element, such as a rolling machine.
  • Another object of the present invention is to provide a machine as stated above, which allows making annular elements in the desired shape effectively and quickly.
  • Another object of the present invention is to provide a machine as stated above, which is provided with such components as to allow making annular elements with protruding portions and/or undercut portions, without impairing the production efficacy or the quality of the finished products.
  • Another object of the present invention is to provide a new method for shaping annular elements.
  • a machine according to claim 1 is provided.
  • FIG. 1 is a side view of a machine according to the present invention.
  • - Figure 2 is a top view with sectional parts along trace II-II in Fig. 1 ;
  • - Figure 3 is a view of an enlarged scale and sectional detail of the machine in Fig. 1 ;
  • FIG. 4 is a sectional view along trace IV-IV in Fig. 3;
  • a machine 1 for shaping annular elements AE such as a rolling machine, such as a so-called radial-axial rolling mill, for example for bearings, rims or the like, which comprises a support frame 2 of the machine components, among which components described hereinafter.
  • the machine is also provided with at least one shaft or mandrel 3 extending around a first longitudinal axis x-x, such as vertical, which mandrel 3 is intended to be inserted or fitted within an annular element AE, or rather within the through gap AE1 delimited by an annular element AE.
  • the annular element AE comprises a side surface AE2 and also a first AE3 and a second AE4 side.
  • the annular element AE comprises a body configured as a rotation solid around an axis of symmetry (in use substantially parallel to axis x-x) having more diameters and having, from one side to the other, a first substantially flat or slightly curved side AE3, then a side connecting surface AE2, e.g. substantially shaped or substantially cylindrical, such as with swollen portions AE5, AE6 alternating with recess portions AE7, and then a second substantially flat or slightly curved side AE4.
  • the annular element AE delimits then a through gap or opening AE1 extending from one side AE3 to the other AE4 and along the axis of symmetry of the annular element AE.
  • Machine 1 then comprises at least one support plate or table 4 of the annular element AE which, in use, extends at least in part around the shaft or mandrel 3 and is intended to support the annular element AE at a first side AE3 thereof, such as a lower side, in use.
  • a bucking component 5 is also provided, such as a rolling plate, which extends, in use and during the shaping/rolling, next to the shaft or mandrel 3 and is intended to abut (following a displacement of mandrel 3 or of the bucking component 5 itself) against and to deform the side surface AE2 of the annular element AE.
  • the bucking component 5 may comprise a cylindrical component having a longitudinal symmetry axis w-w substantially parallel, in use, to the longitudinal axis x-x of the mandrel 3.
  • the bucking component 5 may have a suitably configured side surface 5a (or substantially cylindrical) so as to shape, in use, the annular element AE or rather the side surface AE2 of the same as desired. More particularly, according to the specific embodiment example shown in the Figures, the side surface 5a of the bucking component 5 may have, from one side, such as upper in use, to the other, such as lower in use, a first cylindrical section 5al, then a second slightly frustoconical section 5a2 with decreasing diameter, a third cylindrical section 5a3 with outer diameter smaller than the first cylindrical section 5al, a fourth slightly frustoconical section 5a4 with increasing diameter and a fifth cylindrical section 5a5 with outer diameter substantially corresponding to the first cylindrical section 5al.
  • the working section of the side surface 5 a of the bucking component 5, i.e. the section of such a surface intended to abut and suitably shape the side wall AE2 of an annular element AE, is composed of the second 5a2, third 5a3 and fourth section 5a4.
  • the mandrel 3 and/or the bucking component 5 is/are moveable closer and apart one with respect to the other along a first direction A-A substantially transversal, preferably orthogonal, to the first longitudinal axis x-x and to the longitudinal axis of symmetry w-w and, to this end, the machine comprises appropriate actuation means.
  • the mandrel 3 can be moved along the first direction A-A by actuation means, while the bucking component 5 is fixed in position or better not movable along the first direction A-A.
  • At least one between the mandrel 3 and the bucking component 5 is mounted for rotation, by means of suitable motor means, around the respective longitudinal axis x-x, w-w.
  • the mandrel 3 is mounted idle for rotation around axis x-x, while the bucking component 5 is mounted motorized for rotation by means of suitable motor means around the respective longitudinal axis w-w.
  • the actuating and the motor means motors may comprise, for example, an electric, pneumatic or other type of motor.
  • the machine is then provided with at least one first 6a, such as upper in use, and at least one second 6b, such as lower in use, roller element, which roller elements 6a, 6b are each intended to abut against a portion of a respective side AE4, AE3 of the annular element AE.
  • the first 6a and the second 6b roller element are then each mounted for rotation around a respective axis, such as of longitudinal symmetry, respectively a second y-y and a third axis z-z of symmetry, which are transversal to the first longitudinal axis x-x.
  • the second y-y and the third z-z axis of symmetry are preferably tilted relative to each other, such as converging towards a working zone WZ of the annular element AE and, if desired, they both lie in a same plane, such as vertical, passing through the first longitudinal axis x-x.
  • roller elements 6a, 6b are mounted for rotation around the respective axis of symmetry y-y and z-z, such as in a direction opposite to each other.
  • the first 6a and the second 6b roller element may be placed on the opposite side to the bucking component 5 with respect to the mandrel 3.
  • the annular element AE is between the roller elements 6a, 6b, or better between a portion of respective working sections 6c, 6d, but there aren't placed other elements of the machine, so that a diameter growing zone of the annular element AE remains delimited between the roller elements 6a, 6b during the shaping/rolling, as will be better seen hereinafter.
  • Rollers 6a and 6b may, for example, have a substantially frustoconical configuration, more in particular they may have a substantially frustoconical configuration or outer engagement surface of the annular element.
  • the machine further comprises actuation means 7 intended to move both the first 6a and the second 6b roller element along a second direction B-B, such as vertical, which is substantially parallel to the first longitudinal axis x-x, so that the roller elements 6a, 6b are movable closer and apart one with respect to each other in such a way as to tighten or release the annular element AE during the shaping/rolling.
  • actuation means 7 intended to move both the first 6a and the second 6b roller element along a second direction B-B, such as vertical, which is substantially parallel to the first longitudinal axis x-x, so that the roller elements 6a, 6b are movable closer and apart one with respect to each other in such a way as to tighten or release the annular element AE during the shaping/rolling.
  • both roller elements 6a, 6b can be moved between a first position or rest or unloading position (see Figures 5, 6, 7, 8, 15, 16, 17, 18) and a second position or working or loading position (see Figures 1 1 and 12) in which they are closer to one another than in the first position.
  • the first actuation means may comprise at least one first actuator 7 intended to move the first roller element 6a along the direction B-B, as well as at least one second actuator intended to move the second roller element 6b along the direction B-B, so that the first 6a and the second 6b roller element are movable independently or better mechanically independently from one another along the direction.
  • control means of the first 6a and of the second 6b roller element which are intended to synchronize the displacement of the same along the direction B-B substantially parallel to the first longitudinal axis x-x.
  • the control means may comprise, for example, a program control unit, as well as, if desired, first sensor means, intended to detect the position of the roller elements 6a, 6b and to communicate it to the program control unit, which can then suitably control the actuation means 7.
  • control means may also comprise second sensor means of the force applied to the annular element AE by the upper roller element 6a and by the lower roller element 6b, in particular of the force applied in a direction substantially parallel to the first longitudinal axis x-x. Based on the values measured by the second sensor means, which are in electrical communication with the program control unit, it is possible to confirm that the roller elements 6a, 6b are in contact with the annular element AE, as well as the force applied to the latter.
  • the law of motion with which the control means displace a roller element 6a or 6b is a function, according to a formula or a curve defined by a user and set in the control means, of the law of motion with which the control means displace the other roller element 6a or 6b.
  • a formula curve is or would be calculated or derived on the basis of tests or assessments, so as to ensure the correct position of the roller elements 6a, 6b with respect to or in thrust on a respective portion of the annular element AE during shaping.
  • the roller elements 6a, 6b may be moved by the control means only as a function of the data detected by the sensor means, only as a function of their laws of motion set and correlated to one another in advance, or on the basis of a combination of such solutions, namely by setting ratios between the laws of motion of the roller elements 6a , 6b, and then making any changes or further checks of the positions of the roller elements on the basis of the data obtained from the first and/or second sensor means.
  • the machine may be provided with detection means (such as laser or the like) of the position and geometry, such as the diameter and/or height, of the annular element AE, which detection means could be in communication with the control means or with a program control unit intended to suitably control the actuation means 7.
  • detection means such as laser or the like
  • the control means or with a program control unit intended to suitably control the actuation means 7.
  • the first actuator and/or the second actuator of the actuation means 7 may comprise, for example, a recirculating ball screw group, a planetary roller screw group, an oleodynamic bearing screw unit, a hydraulic actuator, a pneumatic actuator, an electric actuator or a rack and pinion group.
  • the machine may also be provided with means for displacing the roller elements 6a, 6b along a third direction C-C orthogonal to the first longitudinal axis x-x moving closer-apart to/from mandrel 3, which third direction C-C is preferably substantially parallel to the first direction A-A.
  • the displacement means comprise, for example, a respective pneumatic, electric or other type of motor.
  • the support plate or table 4 is slidably mounted along a fourth direction substantially parallel to the first longitudinal axis x-x and means for displacing the support plate or table 4 along such a direction are provided.
  • the support plate or table 4 is kinematically connected to the first 6a or to the second 6b roller, preferably to the second roller 6b as well as moveable together with it along the second direction B-B, in which case the actuation means actually comprise the displacement means.
  • the support table 4 can be moved along a fourth direction parallel to the longitudinal axis x-x by means of respective displacement means disengaged from the roller elements 6a, 6b and from the respective actuation means, so that the same can be moved in a completely independent manner with respect to the roller elements 6a, 6b also in such a direction (parallel to the longitudinal axis x-x).
  • the first 6a and the second 6b roller element have a working section 6c, 6d intended to engage a portion of a respective first AE3 or second AE4 side of the annular element AE, while the support plate or table 4 has a working surface 4a, for example a top surface, intended to support a portion of the first side AE3 of the annular element AE, which working surface 4a is substantially aligned or at the same level, in use, with the working section 6d of the second roller 6b.
  • the support plate or table 4 may delimit at least one opening or window 4b for housing or positioning, in use, such as slidably, of the working section 6d of the second roller element 6b.
  • the working section 6c, 6d consists of a respective portion which, from time to time, during the rotation of the respective roller element, is in contact with a portion of a respective side AE3, AE4 of the annular element AE and, if provided, within the opening or window 4b.
  • the working section 6c of one roller element 6a is substantially parallel to the working section 6d of the other roller element 6b and, even more preferably, the working sections 6c, 6d are substantially transversal or orthogonal to the longitudinal axis x-x of the mandrel 3.
  • the support plate or table 4 defines a seat or abutment or limit switch 4c for a portion of the bucking component 5, such as a substantially curved seat of a curved portion of the bucking component 5.
  • the support plate or table 4 may comprise two half-plates 4d-4e substantially aligned and side by side as well as delimiting therebetween or better, between the respective facing edges, opening 4b as well as an area 4f, such as substantially circular, within which a section of the mandrel 3 is placed during the rolling process; to this end, it is noted that plate 4 and the mandrel 3 are not in contact but there is a space therebetween, such as circular.
  • Distancing-approach means (not shown in the drawings, such as an actuator) of the two half-plates 4d-4e may further be provided. If desired, the two half-plates 4d-4e may be moved along a direction parallel to axis x-x by respective displacement means, so that the same may be moved independently with respect to each other.
  • the machine may then comprise one or more (two according to the embodiment example shown in the Figures) centering elements 8a, 8b arranged next to the mandrel 3, which is/are angularly offset with respect to the bucking component 5.
  • the or each centering element 8a, 8b is intended to press the annular element AE at a portion of the side surface AE2 thereof angularly offset with respect to that engaged by the bucking component 5.
  • the centering elements 8a, 8b may comprise respective secondary rollers which can be moved closer and apart to/from the mandrel 3 along a radial direction angularly offset with respect to the rolling plate.
  • the secondary rollers 8a, 8b may be mounted for rotation around a longitudinal axis of symmetry substantially parallel to the first longitudinal axis x-x.
  • a pair of centering rollers 8a, 8b is provided, which centering rollers 8a, 8b are placed one opposite the other with respect to the mandrel 3 and mounted for rotation around respective axes of symmetry parallel to each other. More in particular, the centering rollers 8a, 8b are mounted for rotation in opposite directions. Even more preferably, the machine may also comprise translation means (such as one or more specific actuators) of the centering rollers 8a, 8b in a direction transversal or orthogonal to the first longitudinal axis x-x.
  • translation means such as one or more specific actuators
  • the side wall of the centering elements 8a, 8b is substantially configured as a respective working section of the side wall 5a of the bucking component 5, or better a central or intermediate section of the same, so that they will be shaped or cylindrical.
  • the centering elements 8a, 8b from one side, such as upper in use, to the other, such as lower in use have a first slightly frustoconical section 8c 1 with decreasing diameter with inclination and extension substantially corresponding to that of the second slightly frustoconical section 5a2 of the side wall 5 a of the bucking component 5, a second substantially cylindrical section 8c2 having extension substantially corresponding to the third section 5a3 of the side wall of the bucking component 5 and a third slightly frustoconical section 8c 1 with increasing diameter and with inclination and extension substantially corresponding to the fourth slightly frustoconical section 5a4 of the side wall 5al of the bucking component 5.
  • a machine according to the present invention therefore delimits a working zone WZ around a portion of the mandrel 3, on which the annular element AE is fitted in use and between a portion of the side surface 5a of the bucking component 5, the surface 4a of the plate 4 and the annular elements 6a, 6b or better, the working sections 6c, 6d of the same.
  • centering elements 8a, 8b are provided, then these also contribute to defining a working zone WZ together with the other machine components now listed.
  • roller elements 6a, 6b may be supported each by a first group 9 mounted for rotation with respect to a second group 10, for example multi- component, such as annular assembled and connected to one another, and angularly movable around axis y-y and z-z by a respective motor 1 1.
  • Each roller element 6a, 6b further comprises a respective hollow element, such as frustoconical mounted around and dragged in rotation by a respective section or part of a respective first group 9.
  • actuation means 7 may comprise a recirculating ball screw group.
  • such a group may comprise a corresponding motor 14, such as electrical, intended to operate a threaded shaft 15 with longitudinal axis extending along the direction B-B, in turn connected to a respective roller element 6a, 6b, or better kinematically connected along the direction B-B to a respective roller element 6a, 6b.
  • the motor 14, optionally with the interposition of a gearbox component 16, is intended to set a nut screw component 17 delimiting, together with the threaded shaft 15, seats for the screw balls, in rotation.
  • Specific bearings 18 may further be provided between threaded shaft 15 and nut screw 17.
  • the recirculating ball screw is, of course, intended to move such components along the direction B-B together with the respective roller element 6a, 6b.
  • the plate 4 is preferably connected or kinematically connected to a roller element, preferably to the second roller element 6b, as stated above. More in particular, the plate 4 is advantageously movable in the direction B-B together with the roller element 6b, although the roller element 6b is substantially free to rotate around the respective axis z-z, for example by operating the abovementioned first group 9, without dragging also the plate 4 in rotation.
  • connection group 18 may be provided, intended to connect the roller element 6b, optionally the second group 10 to the plate 4.
  • connection group 18 would be structured and connected to the roller element 6b, in such a way as to make the roller element 6 and the plate 4 integral in translation along the direction B-B but disengaged and therefore free to be moved independently along the third direction C-C.
  • connection group 18 may comprise a plurality of components, such as a bracket or connection plate 19, optionally U- or L-shaped, for example extending from a lower portion of the roller element 6b or better of the second group 10 or from the actuation means 7, as well as upright components 20 or the like extending from the connection bracket 18 and supporting the plate 4 at the top.
  • a bracket or connection plate 19 optionally U- or L-shaped, for example extending from a lower portion of the roller element 6b or better of the second group 10 or from the actuation means 7, as well as upright components 20 or the like extending from the connection bracket 18 and supporting the plate 4 at the top.
  • the support table 4 may also be movable along a direction parallel to the longitudinal axis x-x by respective displacement means disengaged from the roller elements 6a, 6b.
  • means may also be provided for synchronizing the movement along the second direction B-B of the second roller element 6b and of the plate 4, such as a control unit able to detect, for example by means of specific third sensor means, the position of such components and suitably move them by means of suitable displacement and actuation means along such a direction.
  • the law of motion with which the displacement means displace the plate 4 is a function, according to a formula or a curve defined by a user and set for example in the synchronization means, of the law of motion with which the actuation means displace the roller element 6b.
  • 6b may be achieved only as a function of the data detected by the third sensor means, only as a function of their laws of motion set and interrelated to one another in advance or based on a combination of such solutions.
  • a shaping or rolling method according to the present invention such as a circular rolling method for annular elements, implemented with a machine as described above, provides first for arranging at least one annular element AE in its rough or cogged state.
  • the machine components are removed from the working zone WZ or from the rolling zone, so as to allow loading the annular elements in their rough state as well as the unloading of the finished (shaped/rolled) annular elements.
  • both roller elements 6a, 6b can move along the direction B-B, such as vertical, preferably substantially parallel to the longitudinal axis x-x of the mandrel 3 and also along the direction C-C, such as horizontal, for example transversal or orthogonal to such an axis x-x.
  • the plate 4 which can preferably move along an axis parallel to the longitudinal axis x-x of mandrel 3, such as vertical and along an axis transversal or orthogonal thereto, such as a horizontal axis.
  • the vertical movement of the plate 4 is synchronized with that of the second roller element 6b, this being achievable also by kinematically connecting such components along the direction B-B.
  • roller elements 6a, 6b are in the first position or rest or unloading position (see Figures 5 and 6) and, preferably, at a maximum distance from each other and, optionally, with respect to a working plane D-D which corresponds, in substance, to a transversal plane of the working zone, such as a transversal plane of symmetry of the bucking component 5.
  • the horizontal movement of the mandrel 3 will be integral to the horizontal movement of the table 4.
  • the support plate or table 4 is moved to a side AE3 of the annular element AE in its rough state, the bucking component 5 against a respective portion of the side surface AE2 of the annular element AE in its rough state and the first 6a and the second 6b roller element are moved in abutment against a portion of a respective side AE4, AE3 of the annular element AE in its rough state (see Figures 7 and 8).
  • the shaft or mandrel 3 is then inserted within the annular element AE in its rough or non-processed state or within the through gap AE1 of the same (see Figures 9 and 10), thus placing the shaft or mandrel in position with respect to the other components of machine 2, optionally within area 4f delimited by the plate 4. If desired, the mandrel 3 may be moved to the working position even before arranging the annular element AE in its rough state, thus fitting the annular element AE on the mandrel 3.
  • the displacement of the mandrel 3 (after the suitable placement of the same within the through gap AE1) will allow moving the annular element AE in its rough state towards the bucking component 5 and thus moving the bucking component 5 against or in abutment on a respective portion of the side surface AE2 of the annular element AE in its rough state.
  • a control step of the actuation means is provided during the control step so as to move the at least one first 6a and the at least one second 6b roller element approaching towards each other along the second direction B-B from the first position to the second position or towards the second position, so as to tighten the annular element AE at respective portions of sides AE4, AE3 thereof.
  • the roller elements 6a, 6b during this step are also moved along the third direction C-C.
  • a control step of the displacement means is provided during the control step so as to move the support table 4 together or synchronized according to a programmed law of motion with the second roller element 6b.
  • the roller elements 6a, 6b are moved in a substantially synchronized manner along the second direction B-B and, if desired, along the third direction C-C, symmetrically or not (with reference to the working plane D- D) depending on the configuration of the annular element AE, in particular depending on the configuration of the annular element AE to be obtained, so as to adjust the height of the annular element AE and keep it on or at the working plane.
  • the actuation means are controlled so that when the first roller element 6a is moved by a first distance approaching towards the second roller element 6b, the second roller element 6b is moved towards the first roller element 6a by a second extension distance corresponding to the first distance.
  • the annular elements 6a, 6b, the mandrel 3 and the bucking component 5 and, if provided, the centering elements 8a, 8b are brought into contact and thrust with a respective portion of the annular element AE, so as to suitably shape the latter, leaving a growing zone AZ free, as stated above, preferably between the roller elements 6a, 6b.
  • the rolling plate 5 can be kept fixed in position while the height of ring AE can be managed by the movement of the mandrel 3, although the contrary is also possible.
  • the support table 4 is also displaced (with displacement integral or synchronized with that of the lower roller element 6b) so as to properly support the annular element AE during shaping/rolling.
  • centering elements or components 8a, 8b they keep the annular element in the working zone and contribute to "accompanying" or driving the substantially diametrical growth thereof and to ensuring the substantial cylindricity or cylindrical development.
  • the centering elements 8a, 8b push the annular element or better a portion of the side wall AE2 of the same at angularly offset zones with respect to the centering component 5 and to the roller elements 6a, 6b.
  • the side surface of the annular element AE is shaped mainly as a function of the configuration of the side surface of the bucking component 5.
  • the side surface AE2 of the annular element AE is configured so as to have swollen portions AE5, AE6 alternating with recess portions AE7, and during such a step the outer diameter of the annular element AE as well as the diameter or cross-section of the through gap AE1 of the annular element increase gradually.
  • the annular elements 6a, 6b and, if provided, the centering elements 8a, 8b end the rolling cycle by suitably calibrating the dimensions of the annular element AE (see Figures 13 and 14).
  • the plate 4 with the mandrel 3 and the roller elements 6a, 6b are optionally moved away from the bucking component 5, the roller elements 6a, 6b are displaced, such as lifted up to the maximum opening, and the mandrel 3 is removed from the annular element, such as by lifting it or the annular element AE is removed therefrom. If the centering elements 8a, 8b are provided, these are moved away from the annular element AE.
  • Both the mandrel 3 and the roller elements 6a, 6b are then moved away from the working zone WZ so as to free it and so as to allow unloading the shaped/rolled annular element AE (see Figures 15 to 18).
  • a new rough annular element may thus be loaded and the working cycle repeated.
  • JPS56165507A explains how to control the movement kinematics of a ring rolling mill and describes in detail the operation of the rolling mill using mathematical formulas and block diagrams.
  • V ⁇ * ((Do - Io)/2) 2 * Ho
  • JPH02133131A it teaches a machine wherein the inner and outer cylindrical surface of a ring is heated up by Joule effect, so as to compensate for heat loss during the circular rolling. To do this, it is necessary to discharge high- frequency electric current through cones acting as electrodes; for the electrical discharge to occur, the electrodes/cones must be well in contact with the surface of the ring, therefore cylinders intended to press the cones towards the ring are provided. Therefore, according to JPH02133131A there is not an actuation and a control of the cone position, in particular of the lower cone, but the cylinder associated with the lower cone actually acts like a spring able to compensate for any detachments of the cone from the ring.
  • JPS56165507A and JPH02133131A do not provide a support plate or table sliding along a direction substantially parallel to the longitudinal axis of the respective mandrel, and considering the above with reference to the displacement of the respective lower cone, there would be no reason to provide such a technical feature in the machines of such Japanese documents.
  • JPS56165507A does not provide for moving the lower cone during the rolling process
  • JPH02133131A provides for cylinders only for keeping the lower cone in pressure on the ring for the reasons mentioned above, but there is no control and relative actuation of such a cone.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

La présente invention concerne une machine de façonnage d'au moins un élément annulaire (AE), qui comprend un cadre de support (2), un arbre ou un mandrin (3), une plaque ou table de support (4) pour au moins un élément annulaire (AE), un élément de contact (5), des premier (6a) et second (6b) éléments rouleaux, un dispositif d'actionnement (7) destiné à déplacer les premier (6a) et second (6b) éléments rouleaux, et un dispositif de déplacement pour déplacer ladite plaque ou table de support (4). La présente invention concerne également un procédé de façonnage d'au moins un élément annulaire.
EP15767290.8A 2014-08-08 2015-08-06 Machine et procédé de façonnage d'éléments annulaires, tels que machine de laminage et procédé de laminage circulaire d'éléments annulaires Active EP3177419B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15767290T PL3177419T3 (pl) 2014-08-08 2015-08-06 Maszyna do, i sposób kształtowania elementów pierścieniowych, jak na przykład, walcarka do, i sposób obiegowego walcowania elementów pierścieniowych

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVR20140210 2014-08-08
PCT/IB2015/055965 WO2016020869A1 (fr) 2014-08-08 2015-08-06 Machine et procédé de façonnage d'éléments annulaires, tels que machine de laminage et procédé de laminage circulaire d'éléments annulaires

Publications (2)

Publication Number Publication Date
EP3177419A1 true EP3177419A1 (fr) 2017-06-14
EP3177419B1 EP3177419B1 (fr) 2019-10-30

Family

ID=51799283

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15767290.8A Active EP3177419B1 (fr) 2014-08-08 2015-08-06 Machine et procédé de façonnage d'éléments annulaires, tels que machine de laminage et procédé de laminage circulaire d'éléments annulaires

Country Status (4)

Country Link
EP (1) EP3177419B1 (fr)
ES (1) ES2773635T3 (fr)
PL (1) PL3177419T3 (fr)
WO (1) WO2016020869A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3300814A1 (fr) 2016-09-30 2018-04-04 Forge Pat GmbH Laminoir circulaire avec rouleaux de conformation et procédé de contrôle de la position d'un rouleau d'un tel laminoir
DE102017008449A1 (de) 2017-09-08 2019-03-14 Schuler Pressen Gmbh Radial-Axial-Ringwalzwerk zum Walzen eines Ringes
CN110076270A (zh) * 2019-05-27 2019-08-02 临清市同兴轴承锻造有限公司 一种辊压模具和使用该辊压模具的辗环机的使用方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB812764A (en) * 1956-06-22 1959-04-29 United Steel Companies Ltd Improvements relating to rolling mills for producing rings
DE1188544B (de) * 1961-12-22 1965-03-11 Wagner & Co Werkzeugmaschinenf Vierwalzen-Ringwalzwerk mit selbsttaetig nachstellbaren Axialwalzen
DE2615802A1 (de) * 1976-04-10 1977-10-27 Banning Ag J Ringwalzwerk
DE2917369A1 (de) * 1979-04-28 1980-11-27 Thyssen Industrie Mehrdorn-ringwalzmaschine
JPS56165507A (en) 1980-05-27 1981-12-19 Saginomiya Seisakusho Inc Controlling method for roll mill
JPH02133131A (ja) 1988-11-09 1990-05-22 Mitsubishi Electric Corp リング状金属部材の通電加熱装置
JP2859446B2 (ja) * 1990-12-03 1999-02-17 日立金属株式会社 リングローリングミル
FR2928850B1 (fr) * 2008-03-21 2010-04-02 Guy Vinzant Laminoir circulaire avec rouleau de conformation
DE202010014708U1 (de) * 2010-10-25 2011-01-20 C. Groene Consulting, Unip Lda Axial-/Radialringwalzwerk

Also Published As

Publication number Publication date
ES2773635T3 (es) 2020-07-13
PL3177419T3 (pl) 2020-08-24
EP3177419B1 (fr) 2019-10-30
WO2016020869A1 (fr) 2016-02-11

Similar Documents

Publication Publication Date Title
US9662703B2 (en) Method and device for producing a clinch-rivet connection by means of a rotary oscillating movement
EP3177419B1 (fr) Machine et procédé de façonnage d'éléments annulaires, tels que machine de laminage et procédé de laminage circulaire d'éléments annulaires
RU2505370C1 (ru) Способ и устройство для изготовления труб со стыковым швом из металлических листов
EP2307156B1 (fr) Procédé de fabrication d'un anneau
US20110079066A1 (en) Method for producing an internally or externally toothed cup-shaped sheet material component and corresponding device
EP3582908B1 (fr) Appareil et procédé de guidage de produits métalliques
EP1651364B1 (fr) Appareil permettant de corriger un tuyau et un tube ronds
US8616037B2 (en) Re-turning plant for rollers of a roller mill
KR102094764B1 (ko) 금속 평판 제품에서 평탄도 결함 제거 시스템 및 그 방법
EP0808679A1 (fr) Laminage de pièces annulaires
US3831414A (en) Means for making pulleys
EP2804704A1 (fr) Cage de laminage dotée de rouleaux de travail non inclinés à dispositif de pré-chargement de rouleau
EP3429774B1 (fr) Procédé et appareil permettant la formation d'une spirale pour vis sans fin
KR102162180B1 (ko) 연속 성형용 링 압연 장치
Kalyani et al. The effect of force parameter on profile ring rolling process
CN106470773B (zh) 用于制造金属板制管状绝热元件的方法和装置
JP6322510B2 (ja) 管材矯正方法
CN220612035U (zh) 一种环件外径收缩装置
JP2014036984A (ja) リングローリングミル
RU148517U1 (ru) Ковочно-раскатный агрегат для изготовления колец большого диаметра
JPH07314017A (ja) 対称的な形状の形鋼のフランジ端部のすえ込み加工用の一対のすえ込みローラー
KR101577434B1 (ko) 링 압연 장치의 구동 제어 방법
CN114981022A (zh) 用于改型工件的改型工具、改型设备及方法
RU2568403C2 (ru) Ковочно-раскатный агрегат для изготовления колец большого диаметра
JPH07232212A (ja) スパイラル管成形装置

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20170203

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MURARO S.R.L.

INTG Intention to grant announced

Effective date: 20190517

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1195585

Country of ref document: AT

Kind code of ref document: T

Effective date: 20191115

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602015040752

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191030

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200131

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200130

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191030

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191030

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191030

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200130

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200302

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191030

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20191030

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191030

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191030

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200229

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191030

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2773635

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20200713

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191030

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191030

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191030

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191030

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602015040752

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191030

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191030

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20200731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191030

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191030

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200806

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20200831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200831

REG Reference to a national code

Ref country code: AT

Ref legal event code: UEP

Ref document number: 1195585

Country of ref document: AT

Kind code of ref document: T

Effective date: 20191030

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191030

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191030

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191030

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20191030

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230526

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230808

Year of fee payment: 9

Ref country code: IE

Payment date: 20230828

Year of fee payment: 9

Ref country code: GB

Payment date: 20230828

Year of fee payment: 9

Ref country code: ES

Payment date: 20230901

Year of fee payment: 9

Ref country code: CH

Payment date: 20230902

Year of fee payment: 9

Ref country code: AT

Payment date: 20230821

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20230822

Year of fee payment: 9

Ref country code: FR

Payment date: 20230825

Year of fee payment: 9

Ref country code: DE

Payment date: 20230829

Year of fee payment: 9