EP1740327B1 - Procede pour ebavurer des bords de coupe sur des pieces - Google Patents

Procede pour ebavurer des bords de coupe sur des pieces Download PDF

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Publication number
EP1740327B1
EP1740327B1 EP05730440A EP05730440A EP1740327B1 EP 1740327 B1 EP1740327 B1 EP 1740327B1 EP 05730440 A EP05730440 A EP 05730440A EP 05730440 A EP05730440 A EP 05730440A EP 1740327 B1 EP1740327 B1 EP 1740327B1
Authority
EP
European Patent Office
Prior art keywords
workpiece
rolling body
tool
pressure
cut
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.)
Active
Application number
EP05730440A
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German (de)
English (en)
Other versions
EP1740327A1 (fr
Inventor
Peter Bytow
Martin Decker
Martin Steiner
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.)
Trumpf Werkzeugmaschinen SE and Co KG
Original Assignee
Trumpf Werkzeugmaschinen SE and Co KG
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.)
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Publication date
Application filed by Trumpf Werkzeugmaschinen SE and Co KG filed Critical Trumpf Werkzeugmaschinen SE and Co KG
Publication of EP1740327A1 publication Critical patent/EP1740327A1/fr
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Publication of EP1740327B1 publication Critical patent/EP1740327B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • B21D19/005—Edge deburring or smoothing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/47—Burnishing

Definitions

  • JP 09103828 A a press is used to deburr the cut edges of punched holes on plate-shaped workpieces.
  • the prior art press on a tool with two tool parts, one of which is designed as a punch and the other as a die.
  • the stamp is associated with that side of the workpiece to be machined, on which a ridge protrudes along the cutting edge of a previously created punched out.
  • the stamp cross section has an oversize relative to the cross section of the punched-out.
  • the die of the prior art tool is arranged on the opposite side of the workpiece. For deburring the relevant cutting edge on the punch punch and die are moved in a stroke direction against each other.
  • the edge region of the punched-through pressurized the stamp of the prior art tool.
  • the opposite side of the workpiece acted upon by the punch is supported by the die.
  • the previously formed burr at the cut edge of the punch is removed. If the length of the cut edge to be deburred exceeds the corresponding extension of the punch, then the punch and die of the previously known arrangement must execute a plurality of strokes, between which the work piece is to be replenished in each case in the direction of the cut edge to be deburred.
  • the increment of the Nachsetzieri must not exceed the extent of the stamp in question.
  • the present invention has set itself the object of the generic state of the art.
  • this object is achieved by the method according to claim 1.
  • the claimed rolling and rolling along the respective cutting edge rolling body allows a continuous removal of the burr formed on the cutting edge.
  • the workpiece pressurized by the rolling body is supported on that side of the workpiece, which is opposite to the side of the rolling body, by a counterpressure roller.
  • the support is provided by a counter-pressure roller, which is provided on its jacket with a circumferential groove whose cross-sectional shape is adapted to the geometry of the pressure surface of the rolling body.
  • continuous deburring is also possible possible possible at a relatively large cutting edge length and deviating from a straight course Thomaskantenverêtn.
  • the axis of rotation of said rolling body types is chosen appropriately. If the axis of rotation of the rolling body extends transversely to the relevant workpiece, then the rolling body can follow any, not even straight courses of the cutting edge to be machined, particularly in the case of lateral contact with the workpiece cutting surface forming the respective cutting edge.
  • a pressure ball rotatably mounted on all sides is distinguished, as described in claim 3. Is the rotation axis the rolling body aligned parallel workpiece, so there is advantageously a relatively small height of the provided with the rolling tool part. An optimal Kurvenjankeit such rolling elements is ensured in the case of the method according to claim 4.
  • the claimed rotational mobility of the rolling body about an alignment axis of rotation enables the rolling body to follow even cutting edges that are not straight.
  • a controlled drive can be provided. But is also possible a free rotational mobility of the rolling body to the alignment axis of rotation and a concomitant automatic alignment of the rolling body.
  • At least one cutting edge is also deformed in addition to the deburring, in particular chamfered.
  • the respective cutting edge can be acted upon by a pressure surface, which runs along the workpiece edges forming the cutting edge.
  • a pressure surface which runs along the workpiece edges forming the cutting edge.
  • the burr can be effectively embossed at the cutting edge.
  • the part of the rolling body-side pressure surface opposite to the workpiece cutting surface forming the relevant cutting edge can also serve to control the orientation of the rolling body about the orientation axis of rotation.
  • a machine for carrying out the method according to the invention for deburring cutting edges on workpieces can also be used for punching workpiece machining.
  • the creation of cutting edges and their deburring can accordingly take place on one and the same machine.
  • the replacement of other types of tools and an associated extension of the machine functions is conceivable.
  • a machine 1 has a C-shaped machine frame 2 with a partially cut upper frame leg 3 and with a lower frame leg 4.
  • the lower frame leg 4 is provided with a workpiece table 8, in which a lower tool holder 9 is integrated.
  • the upper tool holder 5 and the lower tool holder 9 are by means of a corresponding rotary drive about the axis 7 rotationally adjustable (double arrow 32).
  • the rotary drive of the upper tool holder 5 and the lower tool holder 9 is numerically controlled as well as the other functional means of the machine 1.
  • the workpiece table 8 stores in a known manner a workpiece in the form of a sheet 10.
  • the coordinate guide 11 has a traversable in the direction of a double arrow 12 transverse guide 13 and on the transverse guide 13 in the direction of a double arrow 14 movable transverse rail 15.
  • the cross rail 15 of the coordinate guide 11 also serves as a tool magazine. As such, the cross rail 15 is provided with tool holders 16, 17, 18.
  • the tool holder 16, 17 take in the example shown punching tools 19, 20 of conventional design.
  • the tool holder 18 is provided for a tool 21 which, in the illustrated phase of the machining of the sheet 10, is interchanged with a tool upper part 22 in the upper tool holder 5 and with a tool lower part 23 in the lower tool holder 9.
  • the tool 21 is used for deburring of cutting edges 24 on the underside of the sheet 10.
  • the cutting edges 24 have previously been created by punching machining of the sheet 10 by means of the punching tools 19, 20. Instead of the tool 21 while the punching tools 19, 20 were successively used with their punches in the upper tool holder 5 and with their punching dies in the lower tool holder 9 of the machine 1. Overall, four slots were punched on the sheet metal 10 with itself on the underside of the sheet rectangularly adjoining cutting edges 24. It came at all cutting edges 24 to form burr.
  • the sheet 10 is initially positioned by means of the coordinate guide 11 relative to the tool 21 such that one of the cut edges 24 of the slot 10 disposed on the sheet 10 above the rolling body 26 of the tool 21 comes to rest. Subsequently, will the plunger 6 is lowered with the upper tool 22 of the tool 21.
  • the upper tool part 22 runs with its underside, in detail with in Fig. 2 shown, all-round rotatable and serving as an abutment counter-pressure balls 27 on the top of resting on the workpiece supports 25 of the tool lower part 23 sheet 10. With continued lowering movement of the plunger 6, the sheet 10 is pressed under elastic deformation of the workpiece supports 25 down.
  • the initially arranged above the roller 26 cutting edge 24 on the plate 10 comes as a result of a conical pressure surface 28 of the roller 26 to the plant and is pressurized by the roller body 26 via the pressure surface 28.
  • the pressure surface 28 extends at both, the cutting edge 24 forming surfaces of the sheet 10 along. Accordingly, it lies opposite both the underside of the sheet 10 and the adjoining this cutting surface of the sheet 10.
  • the sheet 21 pressurized by the tool 21 is moved by means of the coordinate guide 11 relative to the tool 21 such that the rolling body 26 with the pressure surface 28 completely abuts the cut edges 24 of the relevant slot on the sheet 10.
  • the rolling body 26 rotates about a vertical feed axis of rotation 29 and rolls with its pressure surface 28 on the cutting edges 24 from.
  • the pin-like rolling body 26 can be deburred in particular also cut edges with narrow radii.
  • a rotational adjustment of the rolling body 26 by a corresponding adjustment movement of the tool 21 in the direction of the double arrow 32 is not required for changes in direction of the machined cutting edge.
  • the burr protruding from the cut edges 24 is removed by embossing.
  • the cut edges 24 are slightly angled by means of the rolling body 26.
  • the shape of the chamfer formed is due to the geometry of the pressure surface 28 on the roller body 26.
  • the shape of the chamfer could also be influenced by varying the orientation of the feed rotation axis 29 of the rolling body 26.
  • the plunger 6 is lifted until the sheet 10 is released.
  • the workpiece supports 25 are relieved of pressure and are in their initial state in which they are aligned on their upper side with the free axial end of the rolling body 26.
  • the rolling body 26 is again completely below the sheet 10. This can therefore be positioned with the cut edges 24 of the next slot in the above manner with respect to the tool 21.
  • the now of the Rolled body 26 acted upon cutting edges 24 deburred and chamfered.
  • the processed sheet 10 is now moved away from the tool 21 and transferred to an unloading position. Starting from this unloading position, the sheet 10 is finally removed from the machine 1.
  • Fig. 3 shows a tool 41, which includes a tool top 42 and a tool base 43 and which can be used instead of the tool 21.
  • a roller body 46 designed as a pressure roller is rotatably mounted about a horizontal feed rotation axis 49.
  • a pressure surface 48 is formed by a bead-like radial extension of the rolling body 46.
  • the geometry of the pressure surface 48 is matched to the distance between opposite cut edges 24 of the sheet 10 and selected such that both cut edges 24 can be pressurized simultaneously. In this case, the pressure surface 48 surrounds both cut edges 24. Notwithstanding the ratios shown could be by means of the roller 46 at about the corresponding edge edge distance also processed only a single cutting edge and are encompassed by the pressure surface 48.
  • a counterpressure roller 47 is rotatably mounted about a parallel to the feed axis of rotation 49 of the rolling body 46 extending axis as an abutment.
  • the counter-pressure roller 47 is provided with a circumferential groove 52 whose cross-sectional shape is adapted to the cross-sectional shape of the pressure surface 48 forming bead on the roller body 46.
  • the tool 41 basically coincides with the tool 21. In particular, it is also possible to machine cutting edges which are not rectilinear with the tool 41.
  • the tool 41 in the direction of the double arrow 32 about the alignment axis of rotation forming an axis 7 of the relative lifting movement of the upper die 42 and lower die 43 can be adjusted in rotation. If necessary, the rotation is adjusted by means of the numerically controlled rotary drive provided for the upper tool holder 5 and the lower tool holder 9 of the machine 1. Alternatively, a free rotational mobility of the tool 41 about the axis is conceivable.
  • the tool 61 has a tool upper part 62 and a lower tool part 63.
  • a rolling body 66 rotatably mounted in the form of a pressure ball by means of a rotary bearing 71.
  • the pivot bearing 71 allows all-round rotational mobility of the rolling body 66th
  • the radius of the rolling body 66 is matched to the distance of the cutting edges 24 on the sheet 10.
  • a pressure surface 68 of the rolling body 66 By means of a pressure surface 68 of the rolling body 66, two opposing cutting edges 24 can be simultaneously deburred and chamfered.
  • a counter-pressure roller 67 As an abutment for the sheet 10 is a counter-pressure roller 67 which is rotatably mounted on the upper tool part 62 of the tool 61 about a horizontal axis of rotation.
  • a circumferential groove 72 on the counter-pressure roller 67 is adapted with respect to its cross-sectional shape to the geometry of the pressure surface 68 on the roller body 66.
  • the tool 61 is basically rotatable about the axis 7 in the direction of the double arrow 32. Due to the all-round rotational mobility of the roller 66 is made of the possibility of rotational adjustment of the tool 61 in non-linear Thomaskantenverêtn at best for the upper tool part 62 use.
  • the tools 21, 41, 61 can all be loaded into the upper tool holder 5 or into the lower tool holder 9 of the machine 1. At the cross rail 15 of the coordinate guide 11 can be held different tool types simultaneously. It is possible to use the tools 21, 41, 61 except for the above-described deburring and deformation of cut edges for workpiece forming, for example, to create beads on the sheet 10. Conversely, it is conceivable to use as a tool for deburring previously customary forming tools that of corresponding rolling elements, in particular of forming rollers and / or balls use.
  • Fig. 5 In the upper partial view, the formation of a ridge at the cutting edge 24 of the sheet 10 is indicated.
  • a stamping punch and a punching die, as used in the case of the punching tools 19, 20, can be seen.

Abstract

La présente invention concerne un outil conçu pour ébavurer des bords de coupe (24) sur des pièces (10). Cet outil présente un corps de pression se présentant sous forme d'un corps de roulement (26) qui permet, lors d'un déplacement longitudinal relatif du corps de roulement (26) et de la pièce (10), de contraindre en pression les bavures sur le bord de coupe concerné (24) en direction de la pièce (10), en faisant rouler le corps de roulement (26) le long du bord de coupe (24). La présente invention concerne également une machine permettant d'ébavurer des bords de coupe (24) sur des pièces (10), qui est équipée d'un tel outil. En outre, cette invention concerne un procédé pour ébavurer des bords de coupe (24) sur des pièces (10). Ce procédé consiste à déplacer en direction longitudinale un corps de roulement (26) sur le bord de coupe concerné (24) en faisant rouler le corps de roulement (26), ce qui permet de contraindre en pression les bavures sur le bord de coupe concerné (24) en direction de la pièce (10), au moyen du corps de roulement (26).

Claims (6)

  1. Procédé d'ébavurage, au moyen d'un corps roulant (46, 66), de bords de découpe (24) sur des pièces (10) à usiner,
    • ledit corps roulant (46, 66), et une pièce (10) à usiner, étant animés d'un mouvement longitudinal relatif le long d'au moins un bord de découpe (24) à ébavurer sur ladite pièce (10),
    • une bavure, située sur ledit bord de découpe (24), étant soumise à l'action d'une pression en direction de la pièce (10), au cours du mouvement longitudinal relatif du corps roulant (46, 66) et de ladite pièce (10), par une surface de pression (48, 68) dudit corps roulant (46, 66) effectuant un roulement le long dudit bord de découpe (24), et
    • la pièce (10), soumise à la pression du corps roulant (46, 66), étant soutenue par un rouleau de contre-pression (47, 67) du côté de ladite pièce (10) qui se trouve en vis-à-vis du côté dudit corps roulant (46, 66),
    caractérisé par le fait que
    la pièce (10) à usiner est soutenue par un rouleau de contre-pression (47, 67) pourvu, sur son enveloppe, d'une rainure périphérique (52, 72) dont la configuration de section transversale est adaptée à la géométrie de la surface de pression (48, 68) du corps roulant (46, 66).
  2. Procédé selon la revendication 1, caractérisé par le fait qu'un mouvement longitudinal relatif est imprimé à la pièce (10) à usiner, et à un corps roulant (46) revêtant la forme d'un rouleau de pression monté rotatif autour d'un axe (49) de rotation d'avance, lequel axe (49) de rotation d'avance s'étend transversalement par rapport à la direction dudit mouvement longitudinal relatif dudit corps roulant (46) et de ladite pièce (10).
  3. Procédé selon la revendication 1, caractérisé par le fait qu'un mouvement longitudinal relatif est imprimé à la pièce (10) à usiner, et à un corps roulant (66) revêtant la forme d'une bille de pression montée, de préférence, à rotation universelle.
  4. Procédé selon la revendication 2, caractérisé par le fait que l'axe (49) de rotation d'avance du corps roulant (46) s'étend transversalement par rapport à la direction du mouvement longitudinal relatif dudit corps roulant (46) et de la pièce (10) à usiner, et transversalement par rapport à une surface de sectionnement de ladite pièce matérialisant un bord de découpe (24) ; et par le fait que, lors du mouvement longitudinal relatif du corps roulant (46) et de la pièce (10), une rotation est imprimée audit corps roulant (46) autour d'un axe (7) de rotation d'alignement qui s'étend transversalement par rapport à la direction dudit mouvement longitudinal relatif dudit corps roulant (46) et de ladite pièce (10), et transversalement par rapport audit axe (49) de rotation d'avance dudit corps roulant (46).
  5. Procédé selon l'une des revendications précédentes, caractérisé par le fait que le corps roulant (46, 66), et la pièce (10) à usiner, sont animés d'un mouvement longitudinal relatif le long de deux bords de découpe (24) de ladite pièce (10) qui doivent être ébavurés, et se trouvent en vis-à-vis à distance l'un de l'autre ; et par le fait que la bavure, située sur les deux bords de découpe (24), est soumise à l'action d'une pression en direction de la pièce (10), au cours du mouvement longitudinal relatif du corps roulant (46, 66) et de ladite pièce (10), par la surface de pression (48, 68) dudit corps roulant (46, 66) effectuant un roulement le long des deux bords de découpe (24).
  6. Procédé selon l'une des revendications précédentes, caractérisé par le fait qu'au moyen du corps roulant (46, 66), la bavure située sur au moins un bord de découpe (24) est soumise à l'action d'une pression, en direction de la pièce (10) à usiner, et au moins un bord de découpe (24) est déformé, en particulier biseauté.
EP05730440A 2004-04-26 2005-04-08 Procede pour ebavurer des bords de coupe sur des pieces Active EP1740327B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004020483A DE102004020483A1 (de) 2004-04-26 2004-04-26 Werkzeug, Maschine sowie Verfahren zum Entgraten von Schnittkanten an Werkstücken
PCT/EP2005/003730 WO2005102551A1 (fr) 2004-04-26 2005-04-08 Outil, machine et procede pour ebavurer des bords de coupe sur des pieces

Publications (2)

Publication Number Publication Date
EP1740327A1 EP1740327A1 (fr) 2007-01-10
EP1740327B1 true EP1740327B1 (fr) 2012-06-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05730440A Active EP1740327B1 (fr) 2004-04-26 2005-04-08 Procede pour ebavurer des bords de coupe sur des pieces

Country Status (5)

Country Link
US (2) US8042369B2 (fr)
EP (1) EP1740327B1 (fr)
JP (1) JP4659026B2 (fr)
DE (1) DE102004020483A1 (fr)
WO (1) WO2005102551A1 (fr)

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WO2017000989A1 (fr) * 2015-06-30 2017-01-05 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Outil pour poinçonneuse et procédé d'usinage d'une face frontale d'une pièce en forme de plaque

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EP1970667B1 (fr) * 2007-03-16 2013-06-12 TRUMPF Werkzeugmaschinen GmbH + Co. KG Machine à travailler d'une tôle avec un dispositif pour contrôler une perforation dans la tôle qui résulte d'un traitement de la tôle
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EP2722194B1 (fr) * 2012-10-22 2016-12-14 TRUMPF Werkzeugmaschinen GmbH + Co. KG Outil destiné à travailler des pièces à usiner, notamment des tôles
EP2987566B1 (fr) 2014-08-20 2019-12-04 Feintool International Holding AG Appareil et méthode pour calibrer des surfaces de coupe avec bavure des pièces d'emboutissage ou des découpage de précision
JP6272410B1 (ja) * 2016-08-03 2018-01-31 株式会社アマダホールディングス 型押し加工用ダイ金型
DE102016120035B3 (de) * 2016-10-20 2018-01-18 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Werkzeug und Werkzeugmaschine sowie Verfahren zum Bearbeiten von plattenförmigen Werkstücken
WO2018055183A1 (fr) 2016-09-26 2018-03-29 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Outil et machine-outil et procédé de traitement de pièces en forme de plaques
EP3515618B1 (fr) 2016-09-26 2020-07-01 Trumpf Werkzeugmaschinen GmbH + Co. KG Outil et machine-outil ainsi que procédé pour usiner des pièces en forme de panneaux
WO2018055186A1 (fr) 2016-09-26 2018-03-29 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Outil et machine-outil ainsi que procédé d'usinage de pièces en forme de plaque
DE102018104939A1 (de) * 2018-03-05 2019-09-05 Aesculap Ag Verfahren zum Herstellen einer Sterilisiersiebschale mit einem dreidimensional strukturierten Boden
DE102018211351A1 (de) 2018-07-10 2020-01-16 Pass Stanztechnik Ag Rollenwerkzeug für eine Werkzeugmaschine
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Publication number Priority date Publication date Assignee Title
WO2017000989A1 (fr) * 2015-06-30 2017-01-05 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Outil pour poinçonneuse et procédé d'usinage d'une face frontale d'une pièce en forme de plaque

Also Published As

Publication number Publication date
US20120006211A1 (en) 2012-01-12
US20070105488A1 (en) 2007-05-10
WO2005102551A1 (fr) 2005-11-03
US8490449B2 (en) 2013-07-23
JP4659026B2 (ja) 2011-03-30
US8042369B2 (en) 2011-10-25
JP2007534498A (ja) 2007-11-29
DE102004020483A1 (de) 2005-11-17
EP1740327A1 (fr) 2007-01-10

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