EP4272887A1 - Unité d'outil pour une machine de laminage à froid - Google Patents

Unité d'outil pour une machine de laminage à froid Download PDF

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Publication number
EP4272887A1
EP4272887A1 EP23171163.1A EP23171163A EP4272887A1 EP 4272887 A1 EP4272887 A1 EP 4272887A1 EP 23171163 A EP23171163 A EP 23171163A EP 4272887 A1 EP4272887 A1 EP 4272887A1
Authority
EP
European Patent Office
Prior art keywords
clamping
tool
rolling rod
unit
longitudinal direction
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.)
Pending
Application number
EP23171163.1A
Other languages
German (de)
English (en)
Inventor
Florian Beutel
Rafael Schweda
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.)
Osg Ex Cell O GmbH
Original Assignee
Osg Ex Cell O GmbH
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 Osg Ex Cell O GmbH filed Critical Osg Ex Cell O GmbH
Publication of EP4272887A1 publication Critical patent/EP4272887A1/fr
Pending legal-status Critical Current

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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
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
    • B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
    • B21H3/06—Making by means of profiled members other than rolls, e.g. reciprocating flat dies or jaws, moved longitudinally or curvilinearly with respect to each other
    • 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
    • B21H5/00—Making gear wheels, racks, spline shafts or worms
    • B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
    • B21H5/027—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls by rolling using reciprocating flat dies, e.g. racks

Definitions

  • the invention relates to a tool unit for a cold rolling machine.
  • the cold rolling machine is set up to cold form a cylindrical workpiece in order to produce a profile, for example a toothing or a thread, on its outside.
  • the gearing can be aligned parallel (straight gearing) or obliquely (helical gearing) to the axis of the cylindrical workpiece.
  • the profile can be generated at least along a section in the axial direction of the workpiece.
  • the cold rolling machine has two tool units, each with one or more rolling bars.
  • Each rolled bar has a rolled profile that corresponds to the profile to be produced on the workpiece.
  • the two rolling rods of the tool units are pressed against the workpiece from opposite sides in a working direction and are moved in opposite directions at right angles to the working direction in a longitudinal direction in which the rolling rods extend.
  • the workpiece is rolled around its axis between the two rolling rods and formed.
  • the resulting profile can extend completely into the workpiece in the circumferential direction.
  • the tool unit according to the invention is set up and intended for use in a cold rolling machine.
  • a cold rolling machine can have at least one and preferably two tool units according to the invention. More than two tool units according to the invention can also be used in a cold rolling machine. This makes it possible, for example, to use more than one rolling bar per slide in the cold rolling machine.
  • the tool unit has a tool slide that is arranged to be linearly movable in a longitudinal direction.
  • a carrier is arranged on the tool slide.
  • the carrier is designed to carry the rolling rod and to support forces acting on the rolling rod in a working direction, which occur in particular during forming.
  • the carrier can have a contact surface aligned in the working direction, on which the rolling rod can be arranged.
  • the rolled profile points in the working direction.
  • two rolling rods are arranged with a profile spacing in the working direction from one another, the rolled profiles of which face each other and the workpiece.
  • a workpiece can be formed between the two rolling rods to create a profile on the outer circumference.
  • the tool unit according to the invention also has an adjusting device which is arranged on the tool slide.
  • the adjustment device has an adjustment motor.
  • the adjustment motor is preferably an electric motor.
  • the adjustment motor can be drive-connected to the carrier via a gear, preferably a wedge surface gear.
  • the adjusting device is set up to move the carrier relative to the tool slide in the working direction and to bring it into a desired position. In this way, a profile distance between two rolling bars of different tool units can be changed and adjusted in a cold rolling machine.
  • the tool unit according to the invention also has a clamping device which is arranged - preferably directly - on the tool slide.
  • the clamping device has at least one clamping body which generates a clamping force on the rolling rod in the working direction.
  • the rolling rod is pushed against the carrier with the clamping force and thereby held.
  • the clamping body is mounted so that it can move in the working direction against the clamping force.
  • the clamping body can generate the clamping force as a tensile force or a compressive force.
  • the adjusting device is designed to move the carrier and the rolling rod together against the clamping force in the working direction in order to set the desired position of the rolling rod in the working direction.
  • the clamping device ensures that the rolling bar is held securely. However, due to the movable mounting of the clamping body, it is possible to move the carrier by motor against the clamping force using the adjusting device and to enable automated positioning of the rolling rod.
  • the tool slide of the tool unit is not automated in the working direction by a machine axis or another device movable or positionable. It can be arranged immovably in the working direction.
  • the tool carriage of the tool unit is arranged to be linearly movable in the longitudinal direction.
  • the rolling rod extends in the longitudinal direction and is moved in the longitudinal direction by means of the tool slide when forming the workpiece.
  • the clamping device is preferably designed to support the rolling rod in the longitudinal direction on the tool slide in order to avoid undesirable relative movement between the rolling rod and the tool slide in the longitudinal direction.
  • the clamping device has two clamping units arranged at a distance from one another in the longitudinal direction.
  • the rolling rod can be arranged in the space between the two clamping units on the carrier.
  • At least one of the clamping units has a fixed stop surface for the rolling rod.
  • the fixed stop surface is arranged immovably in the longitudinal direction relative to the tool slide.
  • the fixed stop surface is in particular not arranged on the at least one clamping body, but on another component of the at least one clamping unit, for example on a base body.
  • a force acting on the rolling rod in the longitudinal direction can be introduced into the clamping unit via the fixed stop surface and into the tool slide via the clamping unit and supported in this way.
  • the carrier is preferably arranged outside the force flow that supports the rolling rod in the longitudinal direction.
  • One longitudinally The force acting is therefore not supported by the carrier or is only supported to a negligibly small extent. This simplifies the implementation of the adjustment device, since the carrier can be moved in the longitudinal direction by the adjustment device.
  • the adjusting device therefore does not have to absorb large forces in the longitudinal direction that occur when forming the workpiece.
  • At least one of the clamping units and in particular the clamping unit which does not have a fixed stop surface, has a positionable stop surface for the rolling rod, which can be positioned in the longitudinal direction relative to the tool slide.
  • the positionable stop surface is preferably arranged on the clamping body.
  • the positionable stop surface can also be arranged on another component of the clamping unit, for example on a separate stop body, which is arranged on a base body of the clamping unit so that it can be positioned in the longitudinal direction.
  • each clamping unit has a base body which is arranged on the tool slide.
  • the base body can be immovably attached to the tool slide by a screw connection or another mechanical connection when the tool unit is in the operational state in the cold rolling machine. This defines, for example, the position of a fixed stop surface on the base body relative to the tool slide. It may be possible to attach the base body to the tool slide in different positions. However, the position of the base body cannot be changed relative to the tool slide by motor or in any other automated way. After setting up the tool unit for operation, the relative position between the base body and the tool slide is preferably unchangeable.
  • the adjustment motor of the adjustment device can be arranged on the base body of one of the two clamping units.
  • each clamping unit of the clamping device has at least one clamping body and in particular exactly one clamping body.
  • At least the clamping body which has the positionable stop surface, can be mounted on the base body of the clamping unit in question so that it can be positioned in the longitudinal direction. It is sufficient if the at least one clamping body of one of the two clamping units can be positioned in the longitudinal direction. However, all clamping bodies of the clamping units can also be mounted on the base body of the respective clamping unit so that they can be positioned in the longitudinal direction.
  • the at least one clamping body of the clamping device can be pivotally mounted about a pivot axis.
  • the pivot axis preferably extends obliquely or at right angles to the working direction.
  • the pivot axis extends in a transverse direction, the transverse direction being oriented perpendicular to the working direction and perpendicular to the longitudinal direction.
  • the clamping body can be arranged in a rotationally fixed manner on a shaft.
  • the shaft extends along the pivot axis, for example in the transverse direction.
  • the shaft is rotatably mounted on the base body of the respective clamping unit. If the clamping body is arranged on the base body so that it can be positioned in the longitudinal direction, the shaft can be mounted in a movable or positionable manner relative to the base body in the longitudinal direction.
  • the shaft can be mounted within an elongated recess on the base body.
  • the shaft can be positioned longitudinally within the elongated recess. The position can be adjusted, for example, using at least one threaded bolt.
  • the at least one clamping body is realized by a two-armed lever.
  • the clamping body has two arms extending in different directions away from the pivot axis.
  • the two arms can extend away from each other in diametrically opposite directions.
  • the length of the arms from the pivot axis to the free end of the respective arm is preferably of different lengths.
  • the two-armed lever can be a straight lever which is mounted eccentrically pivotable about the pivot axis.
  • the first arm of the lever can be designed to rest on the rolling rod.
  • the other, second arm of the lever can be designed to generate a clamping force via at least one clamping element.
  • the second arm can be supported on the tool slide via the at least one clamping element via the clamping unit.
  • this can be at least one clamping element support a base body of the clamping unit.
  • the second arm is longer than the first arm, in particular longer by at least a factor of 2 or 3.
  • the carrier can be drive-connected to the adjustment motor via a wedge surface gear.
  • the carrier can have a base surface that is inclined obliquely in the longitudinal direction.
  • the base surface can be supported on a support surface of a support body that is inclined obliquely in the longitudinal direction.
  • the adjusting device is set up to move the carrier and the support body relative to one another in the longitudinal direction. Due to the oblique inclination, the position of the carrier in the working direction relative to the tool slide also changes.
  • the base surface and/or the support surface can be a contiguous surface extending in a common plane or can be formed by surface sections arranged in a common plane but not connected to one another in this plane.
  • the adjusting device can, for example, have a spindle arrangement with which the adjusting motor is coupled to the carrier.
  • the spindle can be driveably connected to a motor shaft of the adjustment motor and can be in engagement with a spindle nut which is arranged on the carrier in a rotationally fixed manner. It is also possible to connect the spindle nut to the motor shaft and to arrange the spindle on the carrier so that it cannot rotate.
  • between the Motor shaft of the adjustment motor and the spindle must have a coupling element that allows a bending angle between the axis of the motor shaft and the axis of the spindle.
  • the coupling element can be, for example, a universal joint.
  • the base body can preferably have a fastening surface which is not oriented at a right angle to the longitudinal direction, to which the adjustment motor is attached, so that the motor shaft extends essentially parallel to the spindle.
  • FIG. 1 Two tool units 10 of a cold rolling machine 11 are shown in a highly schematic manner in the manner of a block diagram. According to the example, the two tool units 10 are constructed identically, so that it is sufficient to describe one of the two tool units 10. In an alternative embodiment of the cold rolling machine 11, it may also be sufficient to provide only one tool unit 10 designed according to the invention, with the other tool unit optionally also being able to be designed in any embodiment according to the prior art.
  • the tool unit 10 has a tool slide 12 which can be moved linearly in a longitudinal direction X.
  • the tool slide 12 can be moved in the longitudinal direction X with a machine axis (not shown) of the cold rolling machine 11.
  • a support body 13 is attached to the tool slide 12.
  • the support body 13 has a support surface 14, on which a carrier 15 with a base 16 is supported.
  • Both the support surface 14 and the base surface 16 extend parallel to a transverse direction Y, which is oriented at right angles to the longitudinal direction X.
  • the longitudinal direction In the exemplary embodiment, the support surface 14 and the base surface 16 lie against one another in a plane which includes an angle of inclination ⁇ with the longitudinal direction X.
  • the angle of inclination ⁇ is less than 15°, preferably less than 10° and in the exemplary embodiment less than 5° ( Figures 2 and 7 ).
  • the carrier 15 is mounted on the tool slide so that it can move in the longitudinal direction X relative to the support body 13.
  • the bearing between the carrier 15 and the support body 13 is preferably formed by a plain bearing.
  • the support surface 14 and the base surface 16 lie flat against one another in the common plane.
  • the carrier 15 On its side facing away from the base surface 16, the carrier 15 has a contact surface 17.
  • a rolling rod 18 of the tool unit 10 can be placed on the contact surface 17.
  • the clamping device 19 is set up to allow an adjustment or setting movement of the carrier 15 and thus also of the rolling rod 18 arranged thereon in the working direction Z relative to enable the tool slide 12 and to block a relative movement in the longitudinal direction X.
  • the rolling rod 18 is a tool for forming a workpiece 20 ( Figure 1 ).
  • a profile for example a straight toothing, a helical toothing or a thread
  • the profile produced is defined by a rolled profile 21 of the rolling rod 18.
  • the rolled profile 21 is not illustrated in detail in the drawing and is formed by teeth spaced apart in the longitudinal direction, with a tooth gap being present between two immediately adjacent teeth.
  • the rolled profile 21 is present on the side of the rolling rod 18 facing the workpiece 20 and thus on the side of the rolling rod 18 facing away from the carrier 15.
  • the rolled profiles 21 of the rolling rods 18 of the two tool units 10 of the cold rolling machine 11 come into engagement with the workpiece 20.
  • the tool slides 12 of the two tool units 10 are moved in the longitudinal direction X opposite to one another or in opposite directions, as indicated by the block arrows in Figure 1 is shown schematically.
  • the workpiece 20 rolls on the two rolling rods 18, while a profile is produced on its outer circumference by cold forming.
  • the tool unit 10 has an adjusting device 25.
  • the setting device 25 has an adjustment motor 26, which is drive-connected to the carrier 15.
  • the adjustment motor 26 is preferably an electric motor.
  • the adjusting device 25 is set up to adjust the position of the carrier 15 in the working direction Z relative to the tool slide 12.
  • the carrier 15 can be moved by means of the adjustment motor 26 in such a way that the position of its contact surface 17 and thus the position of a rolling rod 18 arranged on the contact surface 17 changes in the working direction Z.
  • the adjustment motor 26 is set up to move the carrier 15 in the longitudinal direction X relative to the support body 13. Due to the angle of inclination ⁇ of the base surface 16 of the carrier 15 and the support surface 14 of the support body 13, this relative movement in the longitudinal direction X also results in a displacement of the carrier 15 in the working direction Z relative to the tool slide 12. As a result, the position of the rolling rod 18 in the working direction Z can be changed and adjusted relative to the tool slide 12 of the tool unit 10.
  • the drive connection between the adjustment motor 26 and the carrier 15 is preferably self-locking and, in the exemplary embodiment, implemented by a spindle arrangement 27. Forces that are introduced into the carrier 15 via the rolling rod 18 during the forming of the workpiece 20 in the working direction Z then do not have to be supported by the adjustment motor 26. After adjusting the position of the rolling rod 18 in the working direction Z, the adjustment motor 26 therefore does not have to apply any torque.
  • the spindle arrangement 27 has in the exemplary embodiment a spindle 29 which is drive-connected to a motor shaft 28 of the adjustment motor 26.
  • the spindle 29 is in threaded engagement with a spindle nut 30, which in the exemplary embodiment is arranged in a rotationally fixed manner on the carrier 15, for example in a recess in the carrier 15, into which the spindle 29 can protrude. If the spindle 29 is driven, the nut 30 moves along the spindle 29, whereby a movement of the carrier 15 in the longitudinal direction X can be caused.
  • a coupling element 31 is arranged in the drive connection between the spindle 29 and the motor shaft 28, via which a non-aligned alignment between the motor shaft 28 and the spindle 29 is permitted.
  • the coupling element 31 is formed in the exemplary embodiment by a coupling 32 ( Figures 2 , 3 and 7 ).
  • the surface of the base body 39, to which the electric motor is attached is, for example, aligned at an angle obliquely to the longitudinal direction L, so that essentially no kink angle arises between the motor shaft 28 and the spindle 29.
  • the angular surface of the base body can be dispensed with by using a gimbal coupling 32 between the spindle 29 and the motor shaft 28.
  • the clamping device 19 has at least one and, for example, two clamping bodies 36, which have a clamping force F between the tool slide 12 and the rolling rod 18 generate. Due to this clamping force F, the rolling rod 18 is forced against the contact surface 17 of the carrier 15.
  • the tension force F can be a tensile force or a compressive force.
  • the clamping bodies 36 generate a compressive force that presses the rolling rod 18 against the carrier 15.
  • Each clamping body 36 is mounted movably in the working direction Z against the clamping force F.
  • the adjustment device 25 can be used to move and position the carrier 15 and therefore the rolling rod 18 in the working direction Z.
  • the clamping device 19 has a first clamping unit 37 and a second clamping unit 38.
  • the clamping units 37, 38 each have a base body 39, which is immovably attached to the tool slide 12 when the tool unit 10 is ready for use.
  • the shape of the base body 39 can vary.
  • the base bodies 39 of the two clamping units 37, 38 are preferably constructed identically or similarly.
  • the base body 39 of the first clamping unit 37 can be set up for arranging the adjusting device 25.
  • the adjustment motor 26 can be arranged, for example, on the base body 39 of the first clamping unit 37.
  • the coupling element 31 can be arranged in a recess or a central free space in the base body 39.
  • the motor shaft 28 and the spindle 29 can protrude through recesses or through refractions in the base body 39.
  • the rolling rod 18 is arranged in the longitudinal direction X between the two clamping units 37, 38.
  • the clamping units 37, 38 are designed to support the rolling rod 18 in the longitudinal direction X relative to the tool slide 12 in order to avoid a relative movement in the longitudinal direction X relative to the tool slide 12.
  • Forces acting on the rolling rod 18 in the longitudinal direction X are supported on the tool slide 12 via the clamping units 37, 38.
  • Such longitudinal forces are not introduced into the carrier 15 or only to a small extent, so that only small forces are introduced from the carrier 15 into the adjusting device 25 during operation of the cold rolling machine 11.
  • At least one of the two clamping units 37, 38 and in the exemplary embodiment the first clamping unit 37 has a fixed stop surface 40, against which the rolling rod 18 rests with an axial end.
  • the fixed stop surface 40 is present on the base body 39 of the first clamping unit 37.
  • the fixed stop surface 40 is arranged immovably relative to the tool slide 12 in the longitudinal direction X.
  • a stop surface 41 for the rolling rod 18 that can be positioned in the longitudinal direction X can be present on the other clamping unit and, for example, on the second clamping unit 38. In the position of use, the axial end of the rolling rod 18 assigned to the second clamping unit 38 rests on the positionable stop surface 41.
  • the fixed stop surface 40 is preferably assigned to the axial end of the rolling rod 18, which is arranged at the rear in the direction of movement of the tool unit 10 when forming the workpiece 20 - at least during the first or only forming stroke of the tool unit 10.
  • rolling rods 18 of different lengths can be arranged between the two clamping units 37, 38.
  • each clamping unit 37, 38 has at least one and, for example, exactly one clamping body 36.
  • the clamping body 36 is pivotally mounted about a pivot axis S, which extends obliquely or at right angles to the working direction Z.
  • the pivot axis S extends in the transverse direction Y ( Figure 2 ).
  • the clamping body 36 is, for example, connected to a shaft 45 in a rotationally fixed manner.
  • the shaft 45 is in turn rotatably arranged on the base body 39 of the respective clamping unit 37 or 38 ( Figures 3-5 and 7).
  • the shaft 45 extends along the pivot axis S.
  • the shaft 45 is arranged to be movable or positionable in a longitudinal recess 46 extending in the longitudinal direction X.
  • the longitudinal recess 46 is designed in the manner of an elongated hole or a longitudinal groove.
  • the position of the shaft 45 within the longitudinal recess 46 can be adjusted and fixed, for example via a set screw 47, which extends in the longitudinal direction X and is arranged immovably on the base body 39 in the longitudinal direction X.
  • the threaded pin 47 has a corresponding mating thread on the shaft 45 engaged. By rotating the set screw 47, the shaft 45 moves in the longitudinal direction X along the set screw 47.
  • the position of the pivotably mounted clamping body 36 can be adjusted in the longitudinal direction X relative to the base body 39 and thus relative to the tool slide 12.
  • the clamping body 36 of each clamping unit 37, 38 in the exemplary embodiment is designed as a two-armed lever which has a first arm 50 and a second arm 51.
  • Each arm 50, 51 extends away from the pivot axis S or the shaft 45 to a free end.
  • the arms 50, 51 extend in different directions and, for example, starting from the pivot axis S or the shaft 45, opposite to one another.
  • the arms 50, 51 thereby form a straight lever.
  • the length of the first arm 50 from the pivot axis to its free end is shorter than the length of the second arm 51 from the pivot axis to its free end.
  • the first arm 50 is designed to rest with its free end on the rolling rod 18 and in particular to exert the clamping force F in the working direction Z on the rolling rod 18 ( Figure 2 ).
  • the second arm 51 of the clamping body 36 is supported on the base body 39 via at least one clamping element 52.
  • the at least one clamping element 52 is a spring-elastic element or has a spring-elastic element as a component, such as at least one coil spring and/or at least one disc spring.
  • the at least one clamping element 52 is compressible, so that the clamping body 36 can be rotated about the shaft 45 or the pivot axis S when the position of the carrier 15 or the rolling rod 18 in the working direction Z is changed via the adjusting device 25.
  • the amount of the clamping force F can change depending on the compression of the at least one clamping element 52.
  • the positionable stop surface 41 is arranged on the clamping body 36 and, for example, on the free end of the first arm 50.
  • the clamping body 36 can be positioned in the longitudinal direction can be positioned.
  • a plain bearing is formed between the fixed stop surface 40 and the rolling rod 18 ( Figures 2 , 3 and 7 ).
  • At least one rolling element 53 could also be rotatably mounted on the base body 39, on which the fixed stop surface 40 is present ( Figure 5 ). This allows the relative movement of the rolling rod 18 to be simplified relative to the fixed stop surfaces 40 when positioning the rolling rod 18 in the working direction Z.
  • each support unit 54 is present on both sides of the rolling rod 18 in the transverse direction Y.
  • Each support unit 54 is attached directly or indirectly to the tool slide 12.
  • each support unit 54 has a holding body 55 which is attached to the support body 13.
  • the holding body 55 extends from the support body 13 in the working direction Z to an end at which it carries a support element 56 which rests on the rolling rod 18.
  • a sliding bearing or roller bearing can be formed between the support element 56 and the rolling rod 18.
  • each support element is formed by a rolling bearing pin or ball bearing pin, which carries a rolling body 53 with which it rests on the rolling rod 18.
  • the number of support units 54 for supporting the rolling rod 18 can vary in particular depending on the length of the rolling rod 18 in the longitudinal direction X.
  • two support units 54 are arranged on both sides of the rolling rod 18.
  • Two support units 54 can lie opposite each other in the transverse direction Y.
  • the invention relates to a tool unit 10 for a cold rolling machine 11.
  • the tool unit 10 has a tool slide 12 which is linearly movable in a longitudinal direction X.
  • the carrier 15 can be positioned in a working direction Z by means of an adjusting device 25.
  • the carrier 15 can preferably be moved linearly in the working direction Z.
  • the rolling rod 18 is supported on the carrier 15 and is tensioned against the carrier by means of a tensioning device 19.
  • the clamping device 19 has at least one clamping body 36, which can be moved in the working direction Z against a clamping force F and rests on the rolling rod 18.
  • the tensioning device is preferably not directly connected to the carrier 15.
  • the clamping force F is supported directly or indirectly on the tool slide 12, in particular bypassing the carrier 15.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Units (AREA)
EP23171163.1A 2022-05-03 2023-05-02 Unité d'outil pour une machine de laminage à froid Pending EP4272887A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022110872.4A DE102022110872A1 (de) 2022-05-03 2022-05-03 Werkzeugeinheit für eine Kaltwalzmaschine

Publications (1)

Publication Number Publication Date
EP4272887A1 true EP4272887A1 (fr) 2023-11-08

Family

ID=86328345

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23171163.1A Pending EP4272887A1 (fr) 2022-05-03 2023-05-02 Unité d'outil pour une machine de laminage à froid

Country Status (3)

Country Link
US (1) US20230356285A1 (fr)
EP (1) EP4272887A1 (fr)
DE (1) DE102022110872A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5568143A (en) * 1978-11-17 1980-05-22 Hino Motors Ltd Spline rolling device
JPS59175447U (ja) * 1983-05-10 1984-11-22 日産自動車株式会社 転造盤におけるフオ−ミングラツクの取付構造
EP0181132A2 (fr) * 1984-11-08 1986-05-14 Marbaix Lapointe Limited Machines pour le formage par pression de figurations sur la surface d'une pièce ronde
DE10212256A1 (de) * 2002-03-20 2003-05-15 Daimler Chrysler Ag Werkzeug zur Herstellung von Zahnprofilen
EP1286794B1 (fr) 2000-06-09 2004-09-22 Ex-Cell-O GmbH Machine de laminage a froid
KR101921245B1 (ko) * 2018-09-20 2018-11-22 김종희 전조 다이스 조립체
EP3807023B1 (fr) 2018-06-12 2022-03-30 Osg Ex-Cell-O GmbH Machine de laminage à froid et procédé de génération d'un profil au niveau d'une pièce

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6301945B1 (en) 2000-06-01 2001-10-16 Utica Enterprises, Inc. Rack slide assembly and machine for rolling splines in a round workpiece

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5568143A (en) * 1978-11-17 1980-05-22 Hino Motors Ltd Spline rolling device
JPS59175447U (ja) * 1983-05-10 1984-11-22 日産自動車株式会社 転造盤におけるフオ−ミングラツクの取付構造
EP0181132A2 (fr) * 1984-11-08 1986-05-14 Marbaix Lapointe Limited Machines pour le formage par pression de figurations sur la surface d'une pièce ronde
EP1286794B1 (fr) 2000-06-09 2004-09-22 Ex-Cell-O GmbH Machine de laminage a froid
DE10212256A1 (de) * 2002-03-20 2003-05-15 Daimler Chrysler Ag Werkzeug zur Herstellung von Zahnprofilen
EP3807023B1 (fr) 2018-06-12 2022-03-30 Osg Ex-Cell-O GmbH Machine de laminage à froid et procédé de génération d'un profil au niveau d'une pièce
KR101921245B1 (ko) * 2018-09-20 2018-11-22 김종희 전조 다이스 조립체

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DE102022110872A1 (de) 2023-11-09
US20230356285A1 (en) 2023-11-09

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