EP0199062B1 - Dispositif pour couper des structures en nids d'abeilles - Google Patents

Dispositif pour couper des structures en nids d'abeilles Download PDF

Info

Publication number
EP0199062B1
EP0199062B1 EP86103395A EP86103395A EP0199062B1 EP 0199062 B1 EP0199062 B1 EP 0199062B1 EP 86103395 A EP86103395 A EP 86103395A EP 86103395 A EP86103395 A EP 86103395A EP 0199062 B1 EP0199062 B1 EP 0199062B1
Authority
EP
European Patent Office
Prior art keywords
teeth
cutting
cutting knife
edges
rotation
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
EP86103395A
Other languages
German (de)
English (en)
Other versions
EP0199062A2 (fr
EP0199062A3 (en
Inventor
Dieter Roth
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.)
Prototyp Werke GmbH Fabrik fuer Praezisionswerkzeuge
Original Assignee
Prototyp Werke GmbH Fabrik fuer Praezisionswerkzeuge
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 Prototyp Werke GmbH Fabrik fuer Praezisionswerkzeuge filed Critical Prototyp Werke GmbH Fabrik fuer Praezisionswerkzeuge
Publication of EP0199062A2 publication Critical patent/EP0199062A2/fr
Publication of EP0199062A3 publication Critical patent/EP0199062A3/de
Application granted granted Critical
Publication of EP0199062B1 publication Critical patent/EP0199062B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B33/00—Sawing tools for saw mills, sawing machines, or sawing devices
    • B27B33/20—Edge trimming saw blades or tools combined with means to disintegrate waste
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/0046—Cutting members therefor rotating continuously about an axis perpendicular to the edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/0053—Cutting members therefor having a special cutting edge section or blade section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/006—Cutting members therefor the cutting blade having a special shape, e.g. a special outline, serrations

Definitions

  • the invention relates to a cutting device for cutting lightweight thin-walled honeycomb structures of the type specified in the preamble of claim 1.
  • Such a generic cutting device is known from US-A-2 929 299 and has two fast-rotating cutting knives equipped with saw teeth on their circumference, which act in opposite directions, similar to the cutting of a pair of scissors.
  • the known cutting device is thus suitable for cutting thin-walled honeycomb structures without damaging them at the interfaces.
  • the object of the invention is to further develop the cutting device mentioned so that it enables the cutting of curved contours even better with simplified production.
  • the direction of rotation can be changed at the same time, so that e.g. regardless of the direction of advance, the cutting edges always strike the surface of the lightweight structure to be cut from the outside, so that the skin of the lightweight structure that is no longer supported on the outside is prevented from being thrown up at the interface.
  • the preferred apex angle of the teeth measured in the radial direction of the cutting knife, is preferably in the range from 140 to 160 ° and is preferably approximately 150 °.
  • This apex angle together with the above-mentioned preferred ratio between diameter and number of teeth, results in a length of each cutting edge in the range of approximately 5 mm, regardless of the diameter of the cutting knife.
  • the cutting knife according to the invention is overhung on its drive shaft and can on its side or end face remote from this drive shaft have a radial plane which is delimited by the cutting edges. According to a preferred embodiment of the invention, however, this side is undercut by a clearance angle, which can be up to 10 ° and is preferably approximately 5 °, in order to prevent the structure of the lightweight body from being damaged under certain circumstances by the passing knife.
  • the cutting edges viewed in the axial direction, have a cutting angle of 20 to 30 ° and preferably 25 °.
  • the axial side flanks of the teeth are formed by essentially straight surfaces, the generatrices of which are the associated cutting edge and which have an angle to one another which is between 165 ° and 175 ° and is preferably approximately 168 °. These surfaces, the mutual cuts of which form the cutting edges, have the inclination of the clearance angle or cutting angle.
  • Such a configuration enables a particularly simple production by means of only a single grinding tool, which has the same apex angle as the angle by which the surfaces are inclined to one another, and which is guided in an axial plane of the disk knife in the direction of the cutting angle or clearance angle through the knife blank becomes.
  • the cutting knife according to the invention can thus be produced with a simple device using only a single grinding tool for shaping all cutting edges, tooth tips and surfaces.
  • the outer circumference should protrude on the front side of the inner circumference, so that an outlet for the tool is formed.
  • the cut surface of the blank is not exposed to high, sudden loads, so that deformation of the cut edges of the honeycomb structure separated with the cutting knife according to the invention is avoided.
  • the cutting knife according to the invention like the cutting knife of the cutting device mentioned at the outset, preferably has a deflection device for better pushing off cut material, which is arranged on the side of the cutting knife facing away from its end face and is preferably used in the finishing and fine machining becomes.
  • This deflecting device can consist, for example, of a stationary deflecting plate or a deflecting curve which, for example, forms a continuation of the truncated cone formed by the cutting knife.
  • the deflecting device is designed as a rotating body which is rotatably mounted coaxially with the cutting knife and on the rotating shaft thereof.
  • a deflector is capable of a con to form a continuous transition of the cut material from the actual cutting knife to the deflecting device and thus to prevent the intermittent rejection from having a retroactive effect on the quality of the interface.
  • the outer circumference of the deflector is preferably smaller than that of the tooth tips of the cutting knife, but larger than the tooth root diameter of the cutting knife.
  • the rejection device thus engages in the cutting gap created by the tool without impairing the actual interface, and is thus able to guide the waste away from the interface as early as possible, so that even small particles which have been separated or broken off do not impair the interface.
  • the rejection device is designed as a disk milling cutter, which crushes the cut material in the immediate vicinity of the interface, so that it can be blown away or sucked up.
  • This configuration particularly effectively prevents that, for example, larger, separated pieces of material exert a leverage effect on the material that has not yet been cut and can cause it to buckle.
  • the direction of the milling teeth can determine whether the material is cut off or broken off.
  • the side milling cutter preferably has obliquely running cutting edges, which in turn preferably run in a circular cylindrical surface.
  • the deflector is designed as a disk which has a smooth, circumferential groove. In such a fillet, the cut material is not crushed, but deflected, so that the problem of removing small, cut particles from the interface does not arise. Furthermore, this chamfered disc enables the direction of rotation of the knife to be reversed.
  • the deflector is preferably designed as a helical gear. This spur gear is manufactured in that a spiral toothing is introduced into the outer peripheral surface of a circular cylindrical body, the diameter of which corresponds to that of the above-mentioned deflector.
  • This helical toothed spur gear has so far proven itself best for crushing and removing waste, with no disruption to the actual cutting area.
  • the orientation of the helical or spiral toothed grooves is indifferent to the direction of advance of the tool; in any case, there is the advantageous effect mentioned.
  • these teeth are asymmetrical, the tooth tips being offset in the direction of rotation and being ground as cutting edges in the direction of rotation. As the distance of the cutting edge axis of rotation increases, as seen in the direction of rotation, the distance of the tooth flank of each tooth, starting from the cutting edge, decreases in the direction of rotation.
  • chipbreaker grooves are provided which extend in the circumferential direction of the spur gear, but which according to a further embodiment are only relatively flat, so that their depth does not exceed the height of the tooth tip, i.e. the height of that section of the tooth which is ground by grinding is chamfered to form the cutting edge.
  • the chipbreaker grooves are designed as a single or multi-start fine thread, which not only simplifies the production of the grooves, but also gives the possibility, according to a further embodiment of the invention, of using the pitch of this thread and arranging it in such a way that When the tool is rotating, the chips, which are carried by the teeth of the deflector, are gripped in the chipbreaker grooves and pulled away from the interface.
  • a circular cutting knife or disk-shaped knife 1 is shown in elevation, with a central axis 2, which can be attached to the rotatable shaft of the cutting device.
  • the cutting knife 1 has a diameter of 63 mm and is delimited on its end face 3 by a flat hollow cone which has a cone angle of e.g. 170 °. Accordingly, in Fig. 4 the clearance angle ⁇ is e.g. 5 °.
  • the limitation by the hollow cone mentioned takes place only in the area of the cutting knife 1 near the edge, which is further excluded towards the center in order to form an outlet for the grinding tool shown in FIGS. 4 and 6.
  • the cutting knife 1 is drilled out in the middle in order to receive a stub shaft which in turn must not protrude beyond the end face 3.
  • a nut in the left central expansion in FIGS. 1 and 2 is used for fastening.
  • the end face is provided with a plane recess 31, which extends up to the teeth and serves as an outlet for a grinding tool 35.
  • the cutting knife 1 has 22 teeth on its circumference, the tooth back 9 of which points both in and against the direction of rotation (see FIG. 3) are each formed as a sharp cutting edge.
  • the lateral tooth flanks are each formed on the front and back of the cutting knife 1 as adjacent, flat surfaces 30 which are inclined at an angle to one another.
  • narrow strips 31 remain from the original end face 3, which have essentially parallel edges, start from the tooth tips 34 and run towards the center of the cutting knife.
  • the surfaces 30 are flat, in order to leave a pronounced depression in the outer contour of the cutting knife between the tooth tips 34, they must be inclined at an angle to one another, this inclination being formed such that they adjoin one another in a straight line track 32, which of the Center of the depression between two adjacent teeth 34 extends and is directed towards the center of the cutting knife.
  • the tooth back or cutting edges 9 do not run exactly in the circumferential direction of the cutting knife, but only the tooth tips 34 lie on the conical surface 3, while the cutting edges, starting from this, are slightly inclined towards the rear of the cutting knife.
  • the surfaces 30 are not only inclined in relation to a radial plane with respect to the central axis of the cutting knife in the circumferential direction, but also towards the axis. This inclination can be seen from Fig. 4 and is arranged so that each of the cutting edges on the end is set back from a radial plane corresponding to the angle of the cone 3 by a clearance angle ⁇ , which is preferably of the order of 5 °, while the front and back of the cutting edges together form a cutting angle ⁇ of approximately 25 °.
  • the back of the teeth is formed by two ablation surfaces arranged at an angle to one another, which are inclined at the same angle to one another as the end surfaces 30, so that the same tool 35 is used for their production can, which will be discussed further below.
  • the surfaces are arranged in such a way that they also adjoin one another directly in the area of the tooth syringes and thus form a straight line, starting from the tooth tips 34 and pointing towards the axis.
  • the tooth tips 34 therefore only have the strips 3 ′ running towards the axis on the front, while a sharp edge runs towards the axis on the back of the tooth.
  • the two adjoining surfaces on the rear of the cutting knife form a straight line starting from the center of this depression and pointing towards the axis.
  • FIG. 4 The manufacture of the incisors is shown in FIG. 4: a grinding wheel 35 is used for the manufacture, the cross section of which is symmetrically roof-shaped and has an apex angle ⁇ of approximately 168 ° (see FIG. 6). This grinding wheel 35 is moved in directions which are shown by arrows in FIG. 4 and correspond to the two inclination directions defining the cutting angle ⁇ .
  • a grinding wheel 35 is moved in directions which are shown by arrows in FIG. 4 and correspond to the two inclination directions defining the cutting angle ⁇ .
  • two adjacent surfaces 30 on the end face or corresponding surfaces on the surface are created in one operation Ground back, which are each between two adjacent tooth tips. Only a single tool 35 is therefore required to insert the teeth into the pre-turned and pre-ground blank.
  • a side milling cutter 5 Adjacent to the cutting knife 1 and coaxially with it, a side milling cutter 5 is attached to the rotary shaft (not shown) (FIG. 1).
  • the cylindrical side milling cutter 5 has milling teeth 6 on its outer circumference.
  • the side milling cutter 5 lies directly on the cutting knife 1 and is frustoconically cut out on its surface facing it, so that its edges of the cutting teeth 6 facing the cutting knife touch the flanks of the cutting teeth 10 completely or almost.
  • the outer circumference of the side milling cutter 5 is smaller than that of the cutting knife 1, but larger than the root circle of the cutting teeth facing it.
  • the root circle of the side milling cutter 5 is smaller than that of the incisors.
  • the milling teeth 6 can run obliquely or spirally.
  • FIG. 2 shows the same cutting knife as shown in FIG. 1, however the side milling cutter 5 is replaced by a deflecting roller 7.
  • This deflecting roller has the same connection and installation dimensions as the side milling cutter 5 of FIG. 1, but is on its circumference formed by a smooth fillet 8, which has such an inner profile that with continuous extension of the inner profile of the fillet 8 in the direction of the cutting knife 1, the extension cuts the tooth tips.
  • the deflection roller 7 is independent of the direction of rotation of the cutting knife 1, which, as can be seen from FIG. 3, can then rotate in opposite directions without therefore deteriorating the cutting action.
  • the disk milling cutter 5 preferably has teeth which, like the teeth of the cutting knife 1, have a gradually increasing tooth depth or tooth height on their tooth flank pointing in the direction of movement.
  • the side milling cutter or chip breaker which is ground on a slope, has 12 teeth and has either right or left-hand twist.
  • the fillet 8 of the deflection roller 7 preferably has a radius of approximately 10 mm and runs out on its side facing the cutting knife 1 at an angle of 20 ° with respect to a radial plane.
  • the diameter of the deflecting roller or the side milling cutter is advantageously 3 to 5% smaller than that of the cutting knife 1.
  • the tooth depth of the side milling cutter 5 is approximately 4.5 mm.
  • FIG. 5 shows a further deflector 17, the general structure and dimensions of which correspond approximately to those of the deflector 5 of FIG. 1 and the deflector 7 of FIG. 2.
  • the deflector 17 of FIG. 5 is like this a circular cylinder can be written in, but instead of the milling teeth 6 of the deflector 5 of FIG. 1, spirally or obliquely extending teeth 18 are provided.
  • a fine thread 19 is cut into the outer circumference of the spiral or helical toothed deflection device 17 and forms chip breaker grooves. The depth of the chipbreaker grooves 19 is approximately a quarter of the height of the teeth 18.
  • the teeth drop steeply towards the base of the tooth, while on the back flank they fall relatively flat.
  • the first-mentioned, steeply falling tooth face extends to the outer circumference of the deflection device, the rear tooth flank merging into an oblique grinding surface 20 which adjoins the tooth cutting edge.
  • the fine thread that forms the chipbreaker grooves 19 has a division of e.g. 1 to 2 mm.
  • the deflector 17 carries 30 oblique teeth.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)

Claims (20)

  1. Dispositif de coupe pour la découpe de corps de construction légers présentant une structure en nid d'abeilles à parois minces, comportant une lame de coupe (1) entraînée, tournant avec une vitesse de rotation élevée, présentant une forme de disque circulaire pouvant aller jusqu' à une forme de cloche et comportant des dents sur sa périphérie (22) dont les flancs de dent dirigés dans le sens du mouvement sont réalisés sous la forme d'arêtes de coude (9), et dont les flancs de dent dirigés dans le sens opposé au sens du mouvement sont continuellement croissants suivant le sens du mouvement, les flancs de dent situés entre deux sommets de dent (34) se rencontrant au niveau du creux de dent en formant un angle, caractérisé en ce que
    - seulement une lame de coupe (1) est prévue,
    - les dents présentent un profil symétrique,
    - les arêtes de coupe (9) sont
    continuellement croissantes dans le sens opposé au sens du mouvement,
    - les flancs de dent dirigés dans le sens opposé au sens de rotation sont également réalisés sous la forme d' arêtes de coupe (9),
    - la vitesse de rotation de la lame de coupe (1) est réglée, en fonction du diamètre de la lame de coupe (1) et du type du matériau à couper, à une valeur si élevée que chaque arête de coupe (9) rencontrant les parois minces de la structure en nid d'abeilles, présente une vitesse d'impact si élevée que les parois minces, du fait de leur inertie de masse, ne se dérobent pas, mais sont au contraire tranchées de manière nette, par l'arête de coupe (9), a la manière d'une faux, et en ce que
    - le sens de rotation de la lame de coupe (1) peut être inversé.
  2. Dispositif selon la revendication 1, caractérisé en ce que le diamètre extérieur de la lame de coupe (1), mesuré en millimètres, pour un nombre de dents donné de la lame de coupe, vaut de 50 à 70 pour 20 à 25 dents, et vaut de préfrénce 63 pour 22 dents.
  3. Dispositif selon l'une des revendications 1 ou 2, caractérisé en ce que l'angle au sommet mesuré en direction périphérique de la lame de coupe, au niveau des sommets de dent (34) , vaut entre 140° et 160°, et de préférence environ 150°.
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que les dents font saillie hors du corps de la lame de coupe (1), sur un côté frontal, et éont de préférence inclinées par rapport à l'axe, d'un angle de dépouille (β) pouvant aller jusqu' à 10° et de préférence d'environ 5°, et en ce que les dents présentent, en coupe axiale et au niveau des arêtes de coupe (9), un angle de coupe (α) compris entre 20° et 30°, de préférence de 25°.
  5. Dispositif selon la revendication 4, caractérisé en ce que les faces de dent (30) délimitant axialement les dents et situés entre deux sommets de dent (34) voisins, sont planes et engendrées par deux génératrices rectilignes qui délimitent entre-elles un dièdre (γ) compris entre 165° et 175°, de préférence environ 168°, et qui sont dècalées dans la direction de l'angle de coupe ou de l'angle de dépouille.
  6. Dispositif selon la revendication 5, caractérisé en ce que sur les faces de dent (30) situées de part et d'autre des sommets de dent (34), sur le côté de l'angle de dépouille (β), une bande étroite (3') s'étend en direction de l'axe, et en ce que toutes ces bandes (3') sont situées sur une surface conique droite (3) dont l'axe coïncide avec celui de la lame de coupe (1) et dont la génératrice qui coupe cet axe est inclinée par rapport à la normale à l'axe, d'un angle égal à l'angle de dépouille (β).
  7. Dispositif selon l'une des revendications 1 à 6, caractérisé par un dispositif déflecteur (5; 7) qui est destiné à évacuer le matériau coupé, et qui est disposé sur le côté de la lame de coupe opposé à la face frontale plane ou creuse (3).
  8. Dispositif selon la revendication 7, caractérisé en ce que le dispositif déflecteur (5; 7) est monte coaxialement et ensemble avec la lame de coupe (1), sur l'arbre de rotation, avec possibilité de rotation.
  9. Dispositif selon la revendication 8, caractérisé en ce que le dispositif déflecteur (5; 7) vient s'appliquer directement ou presque contre la lame de coupe (1), du côté de son contour extérieur adjacent à cette lame, et en ce que la circonférence externe du dispositif déflecteur (5; 7) est plus petite que le cercle de pied de dent de la larte de coupe (1).
  10. Dispositif selon l'une des revendications 7 à 9, caractérisé en ce que le dispositif déflecteur est réalisé sous la forme d'une fraise-disque (5).
  11. Dispositif selon la revendication 10, caractérisé en ce que la fraise-disque (5) comporte des tranchants s'étendant de manière oblique.
  12. Dispositif selon l'une des revendications 10 ou 11, caractérisé en ce que la fraise-disque (5) comporte des dents de fraisage dont les flancs dirigés dans la direction du sens de rotation croissent de maniére progressive.
  13. Dispositif selon l'une des revendications 7 ou 8, caractérisé en ce que le dispositif déflecteur est réalisé sous la forme d'un disque (7) possédant une gorge lisse (8) s'étendant en direction périphérique.
  14. Dispositif selon l'une des revendications 7 ou 8, caractérisé en ce que le dispositif déflecteur est réalisé sous la forme d'une roue dentée (17) à denture oblique.
  15. Dispositif selon la revendication 14, caractérisé en ce que la roue dentée (17) présente des dents asymétriques comportant des sommets de dent décalés dans le sens de rotation et réalisés sous la forme de tranchants (18).
  16. Dispositif selon la revendication 14 ou 15, caractérisé en ce que les sommets de dent (18) comportent plusieurs rainures brise-copeaux (19) disposées côte à côte et s'étendant sensiblement en direction périphérique de la roue dentée (17).
  17. Dispositif selon la revendication 16, caractérisé en ce que la profondeur des rainures brisecopeaux (19) ne dépasse pas la hauteur des sommets de dent (18) de la roue dentée.
  18. Dispositif selon la revendication 17, caractérisé en ce que les rainures brise-copeaux (19) sont en forme de filetage à pas fin.
  19. Dispositif selon la revendication 18, caractérisé en ce que la rampe du filetage à pas fin est disposée de telle sorte que, en fonction du sens de rotation, les filets formant les rainures brise-copeaux s'éloignent des arêtes de coupe (9) lorsque la lame de coupe (1) tourne.
  20. Dispositif selon la revendication 18 ou 19, caractérisé en ce que pour un diamètre extérieur (D) prédéfini de la roue dentée (17), la profondeur de dent vaut environ D/25, le nombre de dents environ 25 à 50, la largeur de la roue dentée droite environ D/3 et le pas des rainures brise-copeaux (19) environ D/50.
EP86103395A 1985-03-20 1986-03-13 Dispositif pour couper des structures en nids d'abeilles Expired - Lifetime EP0199062B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3510074 1985-03-20
DE19853510074 DE3510074A1 (de) 1985-03-20 1985-03-20 Schneidvorrichtung fuer wabenfoermige leichtbaukoerper

Publications (3)

Publication Number Publication Date
EP0199062A2 EP0199062A2 (fr) 1986-10-29
EP0199062A3 EP0199062A3 (en) 1988-12-28
EP0199062B1 true EP0199062B1 (fr) 1991-03-20

Family

ID=6265810

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86103395A Expired - Lifetime EP0199062B1 (fr) 1985-03-20 1986-03-13 Dispositif pour couper des structures en nids d'abeilles

Country Status (2)

Country Link
EP (1) EP0199062B1 (fr)
DE (2) DE3510074A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20104395U1 (de) * 2001-03-10 2001-07-26 didia Diamanttechnik GmbH, 95032 Hof Segmente für maschinelle Schneid- und Trennwerkzeuge
DE10144119A1 (de) * 2001-09-08 2003-03-27 Bemo Elementbau Gmbh & Co Kg Halteelement zur Halterung von Profiltafeln
CN113477997B (zh) * 2021-07-27 2022-06-10 杭州电子科技大学 一种加工吸波蜂窝的超声弧刃锯片铣刀

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE668970C (de) * 1935-07-28 1939-03-17 Friedrich Von Traitteur Messer zum Zertrennen von Papierbahnen und Bogen
DE964031C (de) * 1955-01-25 1957-05-16 Franz Balke Messer mit feinverzahnter Schneide
US2929299A (en) * 1958-03-13 1960-03-22 Martin Co Cutting tool
FR1479493A (fr) * 1966-03-15 1967-05-05 Jurine Soc Perfectionnements aux procédés et machines pour fendre ou rainurer les feuilles decarton et analogues
DE3334165C2 (de) * 1983-09-21 1996-09-26 Prototyp Werke Gmbh Schneidvorrichtung für wabenförmige Leichtbaukörper

Also Published As

Publication number Publication date
DE3510074A1 (de) 1986-09-25
EP0199062A2 (fr) 1986-10-29
DE3678190D1 (de) 1991-04-25
EP0199062A3 (en) 1988-12-28

Similar Documents

Publication Publication Date Title
DE3313103C2 (fr)
EP0334002B1 (fr) Fraise de filetage
DE3112639C2 (fr)
DE68923131T2 (de) Bohrer, Schleifverfahren und Schleifvorrichtung.
DE3334165C2 (de) Schneidvorrichtung für wabenförmige Leichtbaukörper
DE3022292C2 (de) Verfahren und Vorrichtung zum Herstellen von Ausnehmungen in einem Werkstück
DE2827145A1 (de) Kugelfoermiger waelzfraeser zur herstellung von zahnraedern
DE2821433C2 (de) Verfahren zum Herstellen eines Schraubenrotors für eine Kompressions- od. Expansionsmaschine
EP1634668B1 (fr) Dispositif de découpage d'un fil, système de guidage de fil, et méthode de découpage d'un fil dans une machine d'usinage par électroérosion par fil.
EP0199062B1 (fr) Dispositif pour couper des structures en nids d'abeilles
EP0916771B1 (fr) Dent de fraisage pour le travail de la terre
DE3632296A1 (de) Gewinde-fraeswerkzeug
DE2458238C2 (de) Bohreinheit
EP0974255B1 (fr) Faucheuse hélicoidale
DE2943567A1 (de) Reisszahnwalze und damit bestueckte reisswalenzerkleinerungsmaschinen
EP0341528A1 (fr) Dispositif pour cueillir et/ou hacher et/ou broyer des plantes de toutes sortes
EP1099502A1 (fr) Cisaille volante pour couper des bandes métalliques
EP1958589A1 (fr) Fraise dentaire
DE2618254A1 (de) Messertrommel, insbesondere fuer hackmaschinen zur zerkleinerung von hoelzern und abfaellen
DE3239060A1 (de) Schneidwerk fuer aktenvernichter mit messerwalzen zum laengs- und querschneiden
EP0602408B1 (fr) Broyeur
DE4444977A1 (de) Zerkleinerungswerk, insbesondere für Hächsler zum Zerkleinern von Garten-/oder holzigem Abfall
DE2539881A1 (de) Zahnaerztliches drehwerkzeug, insbesondere fraeser
DE4440480C2 (de) Fräsbohrwerkzeug
DE2037241B2 (de) Fraeser

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE CH DE FR GB IT LI NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE CH DE FR GB IT LI NL

17P Request for examination filed

Effective date: 19890124

17Q First examination report despatched

Effective date: 19890607

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: PROTOTYP-WERKE GMBH, FABRIK FUER PRAEZISIONSWERKZE

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH DE FR GB IT LI NL

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 3678190

Country of ref document: DE

Date of ref document: 19910425

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
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
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: GB

Payment date: 20050228

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: 20050309

Year of fee payment: 20

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

Ref country code: CH

Payment date: 20050310

Year of fee payment: 20

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

Ref country code: FR

Payment date: 20050311

Year of fee payment: 20

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

Ref country code: IT

Payment date: 20050316

Year of fee payment: 20

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

Ref country code: NL

Payment date: 20050322

Year of fee payment: 20

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

Ref country code: BE

Payment date: 20050422

Year of fee payment: 20

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

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20060312

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 EXPIRATION OF PROTECTION

Effective date: 20060313

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV7 Nl: ceased due to reaching the maximum lifetime of a patent

Effective date: 20060313

BE20 Be: patent expired

Owner name: *PROTOTYP-WERKE G.M.B.H. FABRIK FUR PRAZISIONSWERK

Effective date: 20060313