EP1597020B1 - Procede de rectifiage d'une surface cylindrique lors de la production d'outils en metal dur et rectifieuse cylindrique pour le rectifiage de corps de depart cylindriques lors de la production d'outils en metal dur - Google Patents

Procede de rectifiage d'une surface cylindrique lors de la production d'outils en metal dur et rectifieuse cylindrique pour le rectifiage de corps de depart cylindriques lors de la production d'outils en metal dur Download PDF

Info

Publication number
EP1597020B1
EP1597020B1 EP04713525A EP04713525A EP1597020B1 EP 1597020 B1 EP1597020 B1 EP 1597020B1 EP 04713525 A EP04713525 A EP 04713525A EP 04713525 A EP04713525 A EP 04713525A EP 1597020 B1 EP1597020 B1 EP 1597020B1
Authority
EP
European Patent Office
Prior art keywords
grinding
cylindrical
cylindrical rod
workpiece headstock
tailstock
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.)
Expired - Lifetime
Application number
EP04713525A
Other languages
German (de)
English (en)
Other versions
EP1597020A1 (fr
Inventor
Erwin Junker
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.)
Erwin Junker Maschinenfabrik GmbH
Original Assignee
Erwin Junker Maschinenfabrik 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 Erwin Junker Maschinenfabrik GmbH filed Critical Erwin Junker Maschinenfabrik GmbH
Publication of EP1597020A1 publication Critical patent/EP1597020A1/fr
Application granted granted Critical
Publication of EP1597020B1 publication Critical patent/EP1597020B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally

Definitions

  • the invention relates to a method for cylindrical grinding in the production of carbide tools on a cylindrical grinding machine, which has a workpiece headstock and a tailstock, starting from a round rod consisting of hard metal as starting material, according to the preamble of claim 1.
  • a repeated Umspannen is required because first the individual pieces of bars by grinding and cutting, possibly in reverse order, are prepared and then in subsequent grinding operations, which take place on other machines, the grinding out of the tool contours and the cutting, gradations, spiral grooves and the like takes place.
  • the invention is therefore based on the object to improve the known from the prior art method in the direction that concentricity errors at comparable manufacturing costs are avoided with certainty.
  • the process of the invention thus "worked from the running rod".
  • consisting of sintered carbide round rod which may for example have a length of 300 to 400 mm, gradually pushed through the chuck of the workpiece spindle stock and tightened in each case when a certain, the length of the tool to be produced approximately corresponding end portion of the round rod from the workpiece headstock protrudes and faces the tailstock.
  • the special feature of the method according to the invention is that the outstanding end portion, while it is still connected to the rest of the round rod, is ground to its round grinding final contour.
  • the round grinding end contour of the carbide tool to be produced is that contour of the finished tool that is to be produced by cylindrical grinding.
  • At least one steady rest seat is first ground to the freely protruding end region. If the end region is then supported on one or more steady rests by means of the at least one steady rest seat, the grinding of a first end cone onto the end face of the round rod or its end region facing the tailstock can be carried out with the required accuracy. The front cone is then screwed together with a hollow grains on a sleeve of the tailstock. The end region is now clamped at its two ends, without loosening the first clamping in the workpiece headstock was required. Now, the cylindrical grinding can be made to the already explained round grinding final contour with the required accuracy.
  • the so far finished finished single tool is tapped by the round rod; the hitherto taut chuck of the workpiece headstock is released and the round rod is advanced in the loosened chuck a bit further towards the tailstock, with another end portion of the round rod to be machined protruding from the workpiece headstock.
  • the provision of a "single tool finished to size” means something other than finish grinding in the sense of sizing as opposed to roughing. It also does not mean that the carbide tool to be produced must already be ready for use. Rather, the term of finish grinding here only means that the resulting carbide tool in its first Clamping is finished out as far as the task is by cylindrical grinding, just up to its desired round grinding final contour.
  • An advantageous development of the method according to the invention is that during the cylindrical grinding of the projecting from the workpiece headstock end portion of the round rod, the bezel is moved back from the steady seat. Above all, the steady rest serves to grind the clamping end of the round rod projecting from the workpiece headstock with the greatest possible accuracy toward the tailstock.
  • the grinding of the tool contour can be done without additional support by steady rests. As a result, the machining process is simplified, and it can be easily achieved a perfect surface of the round grinding end contour.
  • a further advantageous embodiment of the method according to the invention is that the protruding from the workpiece headstock end portion of the round rod is separated after the cylindrical grinding of the remaining round rod by using a single grinding wheel first finished with a rotating round rod a second end cone to the workpiece headstock facing end surface of the extent Tool is ground, then after moving back and axial displacement of the grinding wheel relative to the round rod attached only a central connecting collar leaving separating cut and finally after stopping the rotation of the round rod of the separation process is completed by grinding away of the connection collar.
  • the tailstock and / or quill are returned from the resulting finished tool, and this is held by a gripper unit.
  • the gripper unit can remove and deposit the finished tool from the machine, thereby further increasing the cost-effectiveness of the method.
  • the known cylindrical grinding techniques can be used.
  • the cylindrical grinding for producing the tool contour can be done with a narrow grinding wheel in the peel grinding process and / or with a wide grinding wheel in pendulum grinding process.
  • the inventive method can also be carried out in an almost manual approach as in a highly automated design.
  • care should be taken to ensure that the last piece of bar to be machined is not clamped in the chuck of the workpiece headstock only with too little axial extent.
  • errors can occur, which are due to a poor concentricity due to too short clamping length. Imperfect tightening can cause damage to the machine or even accidents unless the necessary care is taken.
  • the residual length of the round rod still available for pushing the round rod through the chuck of the workpiece headstock is checked at least for each clamping operation and when falling below a minimum residual length a signal is given and / or the Cylindrical grinding machine is stopped.
  • the invention also relates to a cylindrical grinding machine for grinding cylindrical starting bodies in the manufacture of tools made of hard metal, for carrying out the method according to one of claims 1 to 7.
  • such a machine is provided with a machine bed, with a movable on the machine bed grinding table on which a work headstock and a tailstock are arranged, with a chuck on the workpiece headstock, the axial pushing through a serving as a starting material round rod and its clamping in a different axial position, with at least one arranged in the region between the workpiece headstock and the tailstock and a gripper arranged in the same area gripper unit, with a pushed through the chuck of the workpiece spindle stock and clamped end of the round rod either by the tailstock and / or the steady rest and or the gripper unit can be additionally held, and with at least one wheelhead having one or more grinding spindles through which one or more different grinding wheels are attached to the R andstab are adjustable.
  • a grinding headstock which carries two grinding spindles and is pivotable about a pivot axis which is directed perpendicular to a plane in which the common axis of the workpiece headstock, round rod and tailstock.
  • each of these grinding spindles can still wear more grinding wheels.
  • Particularly preferred is the arrangement of a multiple grinding wheel, in which two or more grinding wheels of different diameter, different width and / or different outer contour are located directly next to each other on a common driven axle.
  • one of the two adjacent individual disks may be designed for cylindrical grinding in the peel-grinding process, while the other may optimally take on the sanding of a front cone with a conical grinding roller.
  • the cylindrical grinding machine according to the invention can be advantageously provided with a CNC control, which then the entire grinding process is largely automated.
  • a sensor is assigned to the chuck of the workpiece headstock by which the round rod is still available for pushing through the chuck Residual length of the round rod controlled at least during each clamping operation and given falling below a minimum residual length a signal and / or the cylindrical grinding machine is set still.
  • a tailstock with a quill carrying a hollow grains is also advantageously used.
  • a hollow grains is particularly well suited to centering and secure the end cone of a cylindrical part to be ground.
  • the inventive method and the cylindrical grinding machine according to the invention are not only excellent for grinding carbide tools, but also for all workpieces with similar stored contour and problem.
  • Fig. 1 is a simplified top view of a grinding machine for carrying out the method according to the invention.
  • the reference numeral 1 the machine bed is shown on the front of a grinding table. 2 is attached.
  • the grinding table 2 can be moved in the direction of the axis Z by means of a CNC control.
  • a workpiece headstock 3 is placed on the left side, which receives a chuck 4, which is rotationally driven by means of an electric motor, not shown.
  • the chuck 4 can be seen on the front of the workpiece headstock 3. It serves to clamp the workpiece, in this case the round rod 6.
  • the chuck 4 is designed such that the round rod 6 pushed through the chuck and in the desired axial positions by means of the clamping jaws 5 ( Figure 2) can be tightened.
  • the workpiece headstock 3 opposite a tailstock 7 is mounted on the grinding table 2, which receives a movable sleeve 8 in the axial direction.
  • the quill movement is shown by the arrow 9.
  • the work spindle 3 facing the outer end of the sleeve 8 is formed as a hollow grains 10 and serves to receive the ground as Stirnkonus end of the round rod.
  • the round bar 6, the workpiece headstock 3 and the chuck 4 and the sleeve 8 and the tailstock 7 form a common central axis 15, which can also be referred to as a common functional axis.
  • Fig. 1 further shows a wheel spindle 16, which carries a first grinding spindle 17 and a second grinding spindle 18.
  • the first grinding spindle 17 is equipped with a first grinding wheel 20 and the second grinding spindle 18 with a second grinding wheel 21.
  • the wheel spindle 16 is pivotable about a pivot axis 19, which is directed perpendicular to a plane in which the common axis 15 of Workhead 3, round rod 6 and tailstock 7 is located.
  • the wheel spindle 16 can be brought into operative position by pivoting the grinding headstock 16 about the pivot axis 19 optionally the first grinding wheel 20 or the second grinding wheel 21.
  • the wheel spindle 16 is also linearly movable in the direction of the X-axis. The process in the direction of the X-axis is also CNC-controlled.
  • the grinding spindles 17 and 18 contain integrated electric motors, whereby the grinding wheels 20, 21 are rotationally driven.
  • the clamping jaws 5 of the chuck 4 can be seen, by which the round rod 6 is clamped for the grinding process.
  • the round rod 6 can be pushed through the chuck 4 and tightened in selectable axial position.
  • an end region 23 of the round rod 6 projects out of the chuck 4 or the workpiece headstock 3.
  • the length of the end region 23 corresponds approximately to the length of the carbide tool to be produced plus a specific clamping and machining length, cf. Fig. 5.
  • Fig. 5 also schematically a gripper unit 22 is shown, the clamping parts 24 and 25 engage around and hold the end portion 23 of the round rod from the outside.
  • the movement of the clamping parts 24, 25 is indicated by arrows 26, 27.
  • Fig. 2 shows how the first grinding spindle 17 of the grinding headstock 16 is moved into the operative position.
  • the first grinding wheel 20 is shown enlarged here. It has a main body 28 of greater axial extent and a radially projecting from this narrow region 29. Of the narrow region 29 carries the abrasive coating 30 of cylindrical contour.
  • the grinding wheel 20 is designed for example as a diamond grinding wheel with a height of the abrasive coating of about 5 mm.
  • the second grinding spindle 18 is brought into operative position with the second grinding wheel 21.
  • the second grinding wheel 22 has a first single disk and a second individual disk 32.
  • the second grinding wheel can be designed as a multi-grinding wheel.
  • the two individual disks 31 and 32 can also be parts of a common abrasive body with a single body. With 33 and 34, the abrasive coatings of the two individual disks 31 and 32 are designated.
  • the two individual disks 31 and 32 have a different axial thickness and are both equipped with conical grinding surfaces of oppositely directed inclination.
  • the second grinding spindle 18 is in use with the second grinding wheel 21.
  • round rod 6 made of a sintered carbide.
  • a round rod which may for example have a length of 300 to 400 mm, is pushed through the chuck 4 of the workpiece spindle stock 3 until an end region 23 (FIG. 2) of desired length protrudes from the chuck 4. In this position the jaws 5 are moved to the rod 6 so that it is tightened.
  • the first grinding spindle 17 of the grinding headstock 16 is brought into operative position.
  • a first steady seat 35 is then ground to the end region 23 of the round bar 6.
  • the first bezel 11 is moved in the direction of the arrow 13 against the first steady seat 35, so that the end portion 23 is securely supported in further grinding operations.
  • a second steady seat 36 or other lunette seats can be sanded at the end portion 23 of the round bar 6.
  • the second bezel 12 is provided. In this case, then first the steady seat 36, which is arranged closer to the chuck 4, and then the steady rest seat 35 is ground.
  • both steady rests 11 and 12 are set against the associated lunette seats 35, 36.
  • the end portion 23 is thus securely supported.
  • the second grinding spindle 18 is brought into operative position with the second grinding wheel 21.
  • Their first individual disk 31 then serves to grind a first end cone 37 against the end face of the round rod 6 or its end region 23 facing the tailstock 7.
  • the first end cone 37 is dimensioned such that it fits into the hollow grains 10 of the quill 8, which is arranged displaceably in the tailstock 7 in the direction of the arrow 9.
  • Fig. 4 shows the state in which the free end of the end portion 23 is clamped to the first end cone 37 in the hollow grains 10.
  • the first grinding spindle 17 of the grinding headstock 16 which is now CNC-controlled in the direction of the X-axis to the end portion 23rd is delivered.
  • the grinding table 2 is moved in the direction of the Z-axis CNC-controlled.
  • nearly the entire length of the end region 23 is ground by means of the first grinding wheel 20 in the peel grinding process. This means that this length is ground in a single operation of the grinding wheel 20 at the end portion 23.
  • FIG. 4 shows a state in which the steady rests 11 and 12 are also engaged on the end region 23 during this parting operation. This is by no means mandatory. The use of the steady rests 11 and 12 is unavoidable, especially when grinding the first end cone 37. In the following operations can also be worked in such a way that the steady rests are then retracted.
  • the process of cylindrical grinding shown in FIG. 4 is by no means limited to obtaining only a continuous cylindrical contour of desired surface quality. Rather, the entire cylindrical grinding final contour of the resulting finished carbide tool is to be achieved in this process step. That is, depending on the final contour of the tool already at this stage of the process in which the end portion 23 is still on the rod 6, portions with gradations of cylindrical, conical or spherical contour can be ground out. All contours that can be achieved by cylindrical grinding are conceivable. This can also be done in such a way that set grinding wheels with certain contours are used. This is not shown in Fig. 4.
  • FIG. 7 Examples of such cylindrical grinding end contours are shown in FIG. 7.
  • finish grinding does not mean a finish grinding in the sense of finishing as opposed to roughing, but that final stage, which is achievable for the resulting tool by grinding in the extreme case. After that cutting edges, spiral grooves and the like have to be sanded in separate processes. For the time being, however, it is necessary that tools cut to size from the round rod 6 should be separated.
  • Fig. 7 two different carbide tools are shown in one stage, as it should be achieved with the inventive method and the cylindrical grinding machine according to the invention.
  • the original cylindrical contour of the round rod 6 is shown in phantom, so that it can be seen how the desired round grinding final contour solely by cylindrical grinding has come about.
  • the figure clearly shows that graded cylindrical, conical or spherical contours are readily achievable.
  • the special feature is that these varied forms have come about, wherein at least at one end a single, on which the starting material forming round rod acting clamping has been sufficient.
  • the implementation of the method is not limited to the measures shown in FIGS. 1 to 5. It is even possible to make do with a single grinding wheel for all operations, if there is the possibility to deliver this grinding wheel in an oblique direction to the round rod.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (14)

  1. Procédé pour rectifier une surface cylindrique lors de la fabrication d'outils en métal dur dans une machine à rectifier cylindriquement, laquelle est pourvue d'une poupée porte-pièce et d'une contrepoupée, une barre ronde en métal dur étant le matériau de base, caractérisé par les étapes consistant à :
    a) fixer la barre ronde (6), la longueur de celle-ci comprenant plusieurs fois celle d'un seul outil, dans un mandrin (4) de la poupée porte-pièce (3), laquelle permet un déplacement axial de la barre ronde (6) lorsque le mandrin (4) est desserré, une zone d'extrémité (23) se projetant à partir de la poupée porte-pièce (3) de la barre ronde (6) étant orientée vers la contrepoupée (7);
    b) affûter au moins un siège de lunette (35, 36) sur la zone d'extrémité (23) se projetant à partir de la poupée porte-pièce (3) de la barre ronde (6) et mettre en place la lunette (11, 12) sur le siège de lunette (35, 36) ;
    c) affûter un premier cône de contact (37) sur la surface de contact orientée vers la contrepoupée (7) de la barre ronde (6) ;
    d) fixer en se faisant heurter ensemble le premier cône de contact (37) et un pointeau creux (10), lequel se situe sur un canon (8) de la contrepoupée (7) ;
    e) rectifier cylindriquement la zone d'extrémité (23) de la barre ronde (6), se projetant à partir de la poupée porte-pièce (3) sur la longueur totale correspondant à l'outil unique jusqu'au contour d'extrémité de rectification cylindrique de celle-ci;
    f) Décolleter l'outil unique rectifié de la barre ronde (6) ;
    g) Desserrer le mandrin (4), serré jusqu'ici, de la poupée porte-pièce (3), et déplacer la barre ronde (6) dans la poupée porte-pièce (3) en direction de la contrepoupée (7), puis serrer le mandrin (4), par lequel une autre zone d'extrémité de la barre ronde (6), étant à travailler, se projette à partir de la poupée porte-pièce (3).
  2. Procédé selon la revendication 1, caractérisé en ce que, lors de la rectification de la zone d'extrémité (23) se projetant à partir de la poupée porte-pièce (3) de la barre ronde (6), la lunette (11, 12) est reculée par rapport au siège de lunette (35, 36).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'au niveau de la zone d'extrémité (23) de la barre ronde (6), deux sièges de lunette (35, 36) sont affûtés de manière espacée axialement.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la zone d'extrémité (23), se projetant à partir de la poupée porte-pièce (3) de la barre ronde (6), est séparée de la barre ronde (6) restante après la rectification cylindrique, un deuxième cône de contact (39) est affûté sur la surface de contact orientée vers la poupée porte-pièce (3) de l'outil presque fini, à l'aide d'une seule meule (21) et avec une barre ronde tournante (6), puis, après le retour et le déplacement axial de la meule (21) en face de la barre ronde (6), une coupure (40) ne laissant qu'une bande de liaison (41) centrale est effectuée, et enfin, après arrêt de la rotation de la barre ronde (6), le processus de séparation par rectification de la bande de liaison (41) est terminé.
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que, lorsque l'outil unique rectifié est décolleté, la contrepoupée (7) et/ou le canon (8) sont reculés par rapport à l'outil fini obtenu, celui-ci étant maintenu par une main (22).
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la rectification pour la production du contour de l'outil est effectué à l'aide d'une meule fine dans le processus de rectification d'écroûtage et/ou à l'aide d'une meule large dans le processus de meulage pendulaire.
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la longueur restante de la barre ronde (6) étant encore disponible pour le passage de la barre ronde (6) à travers le mandrin (4) de la poupée porte-pièce (3), est contrôlée au moins à chaque processus de serrage, et lorsqu'une longueur restante minimale est dépassée, un signal est émis et/ou la machine à rectifier cylindriquement est arrêtée.
  8. Machine de rectification cylindrique pour rectifier des corps de sortie cylindriques lors de la fabrication d'outils en métal dur en vue de l'exécution du procédé selon l'une des revendications 1 à 7, pourvue d'un socle de machine (1), d'une table de rectification (2) déplaçable sur le socle de machine (1), sur lequel sont agencées une poupée porte-pièce (3) et une contrepoupée (7), d'un mandrin (4) sur la poupée porte-pièce (3), lequel permet la traversée axiale d'une barre ronde (6) servant de matériau de base et la fixation de celui-ci selon différentes positions axiales, avec au moins une lunette (11, 12) agencée dans la zone entre la poupée porte-pièce (3) et la contrepoupée (7), et une main (22) agencée dans la même zone, une zone d'extrémité (23) de la barre ronde (6), fixée et passée à travers le mandrin (4) de la poupée porte-pièce (3), pouvant être de plus maintenue à travers la contrepoupée (7) et/ou la lunette (11, 12) et/ou la main (22), la main (22) étant formée de sorte que celle-ci puisse sortir de la machine et déposer l'outil fini ne tournant plus, et qu'une ou plusieurs meules différentes (20, 21) puissent être mises en place sur la barre ronde (6) à l'aide d'une poupée porte-meule (16) ayant une ou plusieurs broches porte-meule (17, 18).
  9. Machine de rectification cylindrique selon la revendication 8, caractérisée en ce qu'une poupée porte-meule (16) porte deux broches porte-meule (17, 18) pouvant être pivotées autour d'un axe de pivotement (19), lequel est orienté verticalement vers une zone dans laquelle se situe l'axe commun (15) de la poupée porte-pièce (3), de la barre ronde (6) et de la contrepoupée (7).
  10. Machine de rectification cylindrique selon la revendication 8 ou 9, caractérisée en ce qu'une meule multiple (21) est agencée, dans laquelle deux ou plusieurs meules (31, 32) se situent presque côte à côte sur un axe actionné ensemble, et comportent des diamètres, une largeur et/ou un contour extérieur différents.
  11. Machine de rectification cylindrique selon la revendication 10, caractérisée en ce que les différentes meules sont unies pour former une seule meule.
  12. Machine de rectification cylindrique selon l'une quelconque des revendications précédentes, caractérisée en ce que la machine est pourvue d'une commande numérique par ordinateur.
  13. Machine de rectification cylindrique selon l'une quelconque des revendications précédentes, caractérisée en ce qu'un capteur est agencé sur le mandrin (4) de la poupée porte-pièce (3), à l'aide duquel la longueur restant à disposition de la barre ronde (6), en vue du passage de la barre ronde (6) à travers le mandrin (4), est contrôlée, au moins à chaque processus de serrage, et que, lorsqu'une longueur restante minimale est dépassée, un signal est émis et/ou la machine à rectifier cylindriquement est arrêtée.
  14. Machine de rectification cylindrique selon l'une quelconque des revendications précédentes, caractérisée en ce que la contrepoupée (7) est pourvue d'un canon (8) portant un pointeau creux (10).
EP04713525A 2003-02-26 2004-02-23 Procede de rectifiage d'une surface cylindrique lors de la production d'outils en metal dur et rectifieuse cylindrique pour le rectifiage de corps de depart cylindriques lors de la production d'outils en metal dur Expired - Lifetime EP1597020B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10308292A DE10308292B4 (de) 2003-02-26 2003-02-26 Verfahren zum Rundschleifen bei der Herstellung von Werkzeugen aus Hartmetall und Rundschleifmaschine zum Schleifen von zylindrischen Ausgangskörpern bei der Herstellung von Werkzeugen aus Hartmetall
DE10308292 2003-02-26
PCT/EP2004/001760 WO2004076124A1 (fr) 2003-02-26 2004-02-23 Procede de rectifiage d'une surface cylindrique lors de la production d'outils en metal dur et rectifieuse cylindrique pour le rectifiage de corps de depart cylindriques lors de la production d'outils en metal dur

Publications (2)

Publication Number Publication Date
EP1597020A1 EP1597020A1 (fr) 2005-11-23
EP1597020B1 true EP1597020B1 (fr) 2006-06-14

Family

ID=32863904

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04713525A Expired - Lifetime EP1597020B1 (fr) 2003-02-26 2004-02-23 Procede de rectifiage d'une surface cylindrique lors de la production d'outils en metal dur et rectifieuse cylindrique pour le rectifiage de corps de depart cylindriques lors de la production d'outils en metal dur

Country Status (11)

Country Link
US (2) US7393261B2 (fr)
EP (1) EP1597020B1 (fr)
JP (1) JP4579900B2 (fr)
KR (1) KR101002610B1 (fr)
CN (1) CN100532015C (fr)
AT (1) ATE329728T1 (fr)
AU (1) AU2004215687B2 (fr)
DE (2) DE10308292B4 (fr)
ES (1) ES2267053T3 (fr)
RU (1) RU2312002C2 (fr)
WO (1) WO2004076124A1 (fr)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006007055B4 (de) * 2006-02-15 2008-07-17 Bsh Holice A.S. Verfahren zum Schleifen von stabförmigen Werkstücken, Schleifmaschine zur Durchführung des Verfahrens und Schleifzelle in Zwillingsanordnung
GB2438025A (en) * 2006-05-11 2007-11-14 Yorkshire Machine Tools Ltd Machining apparatus
DE102007009843B4 (de) * 2007-02-28 2010-04-08 Erwin Junker Maschinenfabrik Gmbh Verfahren zur Schleifbearbeitung eines Maschinenbauteils und Schleifmaschine zur Durchführung des Verfahrens
DE102008010245B4 (de) * 2008-02-20 2011-02-10 Emag Holding Gmbh Verfahren zum Schleifen wellenförmiger Werkstücke
EP2163341B1 (fr) * 2008-09-12 2019-07-10 Jtekt Corporation Machine-outil avec appareil support et son procédé d'usinage
DE102008058814B4 (de) 2008-11-24 2012-09-06 Emag Holding Gmbh Verfahren zum Rundschleifen von Werkstücken
DE102009024209B4 (de) * 2009-06-08 2012-12-06 Erwin Junker Maschinenfabrik Gmbh Verfahren und vorrichtung zum mehrlagenschleifen von werkstücken
US8579680B2 (en) * 2009-06-22 2013-11-12 Dan Schellenberg Centerless grinding machine
JP5428740B2 (ja) * 2009-10-19 2014-02-26 株式会社ジェイテクト 複合研削盤
DE102009059897B4 (de) * 2009-12-21 2013-11-14 Erwin Junker Maschinenfabrik Gmbh Verfahren zum Rundschleifen von langen, dünnen Rundstangen und Rundschleifmaschine zur Durchführung des Verfahrens
JP5505099B2 (ja) * 2010-06-04 2014-05-28 株式会社ジェイテクト 複合研削盤による研削方法
IT1403602B1 (it) * 2010-12-22 2013-10-31 Tenova Spa Metodo per il posizionamento di cilindri operativi su di una macchina rettificatrice e macchina rettificatrice che attua tale metodo
CN102101252A (zh) * 2010-12-24 2011-06-22 张良羽 一种阀芯加工装置及方法
CN102267071B (zh) * 2011-08-01 2013-07-10 浙江瑞亨精密工具有限公司 一种外圆磨床
JP5260812B1 (ja) * 2012-05-15 2013-08-14 日鍛バルブ株式会社 丸棒材の両端面加工方法
CN103158050A (zh) * 2013-03-25 2013-06-19 靖江市建肯高速电机有限公司 一种电主轴端盖的磨削方法
DE102013214226B4 (de) * 2013-07-19 2018-06-21 Erwin Junker Grinding Technology A.S. Verfahren zum centerless-schleifen von wellenteilen, insbesondere von rohren für gebaute nockenwellen, sowie dafür vorgesehenes schleifscheiben- und regelscheibenpaar
CN103659659A (zh) * 2013-11-28 2014-03-26 无锡市航鹄科技有限公司 大尺寸棒材作标记支撑定位工装
CN104385134A (zh) * 2014-11-15 2015-03-04 江阴吉爱倍万达精工有限公司 薄壁微型轴承内孔磨床工件定位装置
CN104354105A (zh) * 2014-11-15 2015-02-18 江阴吉爱倍万达精工有限公司 薄壁微型轴承内孔磨床工件定位装置的压紧机构
JP2016101664A (ja) * 2014-11-27 2016-06-02 三星ダイヤモンド工業株式会社 基板加工用ツールの製造方法及び基板加工用ツール
CN108527050B (zh) * 2018-04-16 2020-12-04 吴烁 一种杆件端部打磨装置
CN109176181A (zh) * 2018-10-11 2019-01-11 湖州费莲青湖笔有限公司 一种毛笔笔杆打磨结构及其使用方法
CN109202493A (zh) * 2018-11-26 2019-01-15 泸州远程工程机械有限公司 结构可调的管材加工夹持组件
CN109834584B (zh) * 2019-03-18 2021-01-29 内蒙古中环光伏材料有限公司 一种多级缩径籽晶的加工方法及多级缩径籽晶
CN110977668B (zh) * 2019-12-25 2024-05-24 南通德鑫数控机床有限公司 一种数控全自动一次成型凸轮轴毛坯打磨机床
CN111496614B (zh) * 2020-05-25 2022-07-22 青岛张氏力拓精密机械有限公司 一种基于涡轮蜗杆的金属棒表面抛光设备
CN111761500A (zh) * 2020-05-30 2020-10-13 董良印 一种用于钢管表面的抛光机及其使用方法
CN112388479A (zh) * 2020-11-12 2021-02-23 宣荣康 一种多功能车床
CN114453995B (zh) * 2022-03-15 2024-06-07 安徽信息工程学院 一种伸缩式打磨装置的打磨方法
CN116833858B (zh) * 2023-08-31 2024-01-02 综欣工业装备(潍坊)有限公司 一种卧式机床工件加工固定装置

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1904568A (en) * 1929-05-14 1933-04-18 Gen Electric Disk-like cutting tool
US3610075A (en) * 1968-07-01 1971-10-05 Illinois Tool Works Method of producing a plurality of cutting tools from a single fluted bar
JPS54295A (en) * 1977-06-02 1979-01-05 Komatsu Ltd Machine tool
US4651472A (en) * 1984-09-03 1987-03-24 Schaudt Maschinenbau Gmbh Method of and machine for grinding rotary workpieces
DE3618349A1 (de) * 1986-05-31 1987-12-03 Index Werke Kg Hahn & Tessky Verfahren und einrichtung zur ueberpruefung eines abstechvorgangs
JPS6434648A (en) * 1987-07-31 1989-02-06 Toyoda Machine Works Ltd Grinding device with feed gear for shaft-shaped work
JP2930462B2 (ja) * 1991-12-26 1999-08-03 豊田工機株式会社 研削方法
JP2861715B2 (ja) * 1993-02-18 1999-02-24 信越半導体株式会社 インゴット円筒研削機における空回転防止装置
JP2788707B2 (ja) * 1993-12-21 1998-08-20 本田技研工業株式会社 研削盤
US5527210A (en) * 1994-05-18 1996-06-18 Woodward Governor Company Dynamic steady rest
JPH0890408A (ja) * 1994-09-27 1996-04-09 Toyoda Mach Works Ltd 研削方法
JP3517984B2 (ja) * 1994-10-11 2004-04-12 豊田工機株式会社 数値制御研削盤
JPH08141890A (ja) * 1994-11-15 1996-06-04 Shimomura Tokushu Seiko Kk 金属製丸棒材の研磨機及び金属製丸棒材の直線矯正研磨定尺切断装置
US5885199A (en) * 1996-02-06 1999-03-23 Shao; Wenyuan Compact machining center for multifunction
DE19625520C1 (de) * 1996-06-26 1997-06-12 Reishauer Ag Verfahren und Vorrichtung zum Feinbearbeiten von Stirnzahnrädern
EP0875809A3 (fr) * 1997-04-28 2000-09-06 Seiko Seiki Kabushiki Kaisha Appareil de CAD-CAM et appareil d'usinage
JPH1128662A (ja) * 1997-07-08 1999-02-02 Hitachi Ltd 管状セラミック成形体の加工方法
DE19756610A1 (de) * 1997-12-18 1999-07-01 Junker Erwin Maschf Gmbh Verfahren und Vorrichtung zum Schleifen von Werkstücken mit zum Schleifen zeitparaller Feinstbearbeitung
JPH11188570A (ja) * 1997-12-24 1999-07-13 Toyoda Mach Works Ltd 冷風冷却を用いた機械加工装置及び機械加工方法
DE19806608A1 (de) * 1998-02-18 1999-09-02 M B A Gmbh Verfahren und Vorrichtung zur fräsenden Bearbeitung von Werkstücken
JP3781236B2 (ja) * 1998-03-27 2006-05-31 株式会社ジェイテクト 研削盤及び砥石研削面の位置測定方法
DE19844243A1 (de) * 1998-09-26 2000-03-30 Schuette Alfred H Gmbh & Co Kg Universalschleifmaschine
JP2000141216A (ja) * 1998-11-02 2000-05-23 Nippei Toyama Corp クランクシャフト研削盤
DE19857359B4 (de) * 1998-12-11 2005-09-15 Erwin Junker Maschinenfabrik Gmbh Verfahren und Vorrichtung zum Bearbeiten von Werkstücken mit dünnwandigen Bereichen, die zentrische Formabweichungen aufweisen
DE19919893A1 (de) * 1999-04-30 2000-11-09 Junker Erwin Maschf Gmbh Vor- und Fertigschleifen einer Kurbelwelle in einer Aufspannung
DE19962796A1 (de) * 1999-12-23 2001-07-05 Junker Erwin Maschf Gmbh Verfahren und Vorrichtung zum Schleifen von genuteten Werkzeugen
JP4051872B2 (ja) * 2000-09-29 2008-02-27 株式会社ジェイテクト 加工部の測定方法及び加工方法
DE10145674B4 (de) * 2001-05-17 2005-12-15 Chiron-Werke Gmbh & Co Kg Werkzeugmaschine zur Bearbeitung eines stangenförmigen Werkstücks
DE10144644B4 (de) * 2001-09-11 2006-07-13 Bsh Holice A.S. Verfahren und Vorrichtung zum Schleifen von zentrischen Lagerstellen von Kurbelwellen
JP2003175401A (ja) * 2001-12-10 2003-06-24 Yamazaki Mazak Corp バーフィーダ付き工作機械
US6878035B2 (en) * 2002-03-22 2005-04-12 Darex Corporation Tool sharpener

Also Published As

Publication number Publication date
CN100532015C (zh) 2009-08-26
JP2006519108A (ja) 2006-08-24
US20060121827A1 (en) 2006-06-08
US7393261B2 (en) 2008-07-01
US7708623B2 (en) 2010-05-04
WO2004076124A1 (fr) 2004-09-10
ATE329728T1 (de) 2006-07-15
CN1753757A (zh) 2006-03-29
RU2005130018A (ru) 2006-02-10
JP4579900B2 (ja) 2010-11-10
AU2004215687B2 (en) 2008-12-11
DE10308292A1 (de) 2004-09-16
ES2267053T3 (es) 2007-03-01
AU2004215687A1 (en) 2004-09-10
US20080139091A1 (en) 2008-06-12
DE10308292B4 (de) 2007-08-09
KR20050107464A (ko) 2005-11-11
KR101002610B1 (ko) 2010-12-20
EP1597020A1 (fr) 2005-11-23
RU2312002C2 (ru) 2007-12-10
DE502004000773D1 (de) 2006-07-27

Similar Documents

Publication Publication Date Title
EP1597020B1 (fr) Procede de rectifiage d'une surface cylindrique lors de la production d'outils en metal dur et rectifieuse cylindrique pour le rectifiage de corps de depart cylindriques lors de la production d'outils en metal dur
DE10144644B4 (de) Verfahren und Vorrichtung zum Schleifen von zentrischen Lagerstellen von Kurbelwellen
DE102009059897B4 (de) Verfahren zum Rundschleifen von langen, dünnen Rundstangen und Rundschleifmaschine zur Durchführung des Verfahrens
DE102014203402B3 (de) Schleifmaschine und verfahren zum schleifen von axialen bohrungen und beidseitig zu bearbeitende plane aussenflächen aufweisenden werkstücken
EP2007548B1 (fr) Procédé de rectification d'un composant de machine et rectifieuse pour la mise en oeuvre dudit procédé
EP0799109B1 (fr) Procede de finissage de pieces trempees
EP3116683B1 (fr) Procédé et dispositif de finition de grands vilebrequins
EP1984145B1 (fr) Procede de meulage de pieces en forme de barreau, meuleuse permettant de mettre en oeuvre le procede et cellule double de meulage
EP2167277B1 (fr) Centre de rectification et procédé de rectification simultanée de plusieurs paliers et de surfaces d'extrémité de vilebrequins
DE102008009124B4 (de) Verfahren zum Schleifen von stabförmigen Werkstücken und Schleifmaschine
EP2046528B1 (fr) Procédé pour meuler une plaque de coupe amovible et plaque de coupe pour mettre en uvre le procédé de meulage
EP0483064A1 (fr) Centre d'usinage pour le meulage de pièces ayant des surfaces de forme complexe
WO2000067947A1 (fr) Procede de meulage de surfaces de roulement convexes et de diametres exterieurs, sur des pieces a usiner ondulees, dans un serrage, ainsi que meuleuse destinee a la mise en oeuvre de ce procede
EP0273950B1 (fr) Procede et dispositif de fabrication de pieces tournees coupees dans des barres
DE10011454A1 (de) Schleifvorrichtung
DE19804762B4 (de) Verfahren und Vorrichtung zum Schleifen der Frei-, Span- und/oder Brustfläche von Zähnen eines Sägewerkzeugs
DE10113301B4 (de) Verfahren und Vorrichtung zum Hinterschleifen der Schneidzähne von zylindrisch oder kegelig geformten Abwalzfräsern sowie Abwalzfräser
DE19809353C2 (de) Verfahren zum beidseitigen Schleifen von Linsen und Vorrichtung zum Durchführen des Verfahrens
EP1475185A1 (fr) Méthode et dispositif pour abraser des pièces à symétrie de révolution
DE9200400U1 (de) Bearbeitungsvorrichtung

Legal Events

Date Code Title Description
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

17P Request for examination filed

Effective date: 20050803

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

DAX Request for extension of the european patent (deleted)
GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

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: 20060614

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: 20060614

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: 20060614

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: 20060614

Ref country code: IE

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: 20060614

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: 20060614

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20060614

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502004000773

Country of ref document: DE

Date of ref document: 20060727

Kind code of ref document: P

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

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: 20060914

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060915

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

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: 20061114

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
ET Fr: translation filed
REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

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 NON-PAYMENT OF DUE FEES

Effective date: 20070228

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2267053

Country of ref document: ES

Kind code of ref document: T3

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: 20070315

BERE Be: lapsed

Owner name: ERWIN JUNKER MASCHINENFABRIK G.M.B.H.

Effective date: 20070228

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: 20070228

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

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: 20060915

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

Ref country code: AT

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

Effective date: 20070223

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: 20060914

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

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: 20060614

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: LI

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

Effective date: 20080229

Ref country code: CH

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

Effective date: 20080229

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: 20070223

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: 20060614

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: 20060614

Ref country code: HU

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: 20061215

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

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

Ref country code: FR

Payment date: 20230216

Year of fee payment: 20

Ref country code: ES

Payment date: 20230317

Year of fee payment: 20

Ref country code: CZ

Payment date: 20230221

Year of fee payment: 20

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

Ref country code: SE

Payment date: 20230216

Year of fee payment: 20

Ref country code: IT

Payment date: 20230217

Year of fee payment: 20

Ref country code: GB

Payment date: 20230217

Year of fee payment: 20

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

Ref country code: DE

Payment date: 20230427

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 502004000773

Country of ref document: DE

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20240301

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20240222

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

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20240224

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

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20240224

Ref country code: CZ

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20240223

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20240222