EP2093030B1 - Procédé et dispositif destinés au retrait de déchets d'une presse - Google Patents

Procédé et dispositif destinés au retrait de déchets d'une presse Download PDF

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Publication number
EP2093030B1
EP2093030B1 EP20090001247 EP09001247A EP2093030B1 EP 2093030 B1 EP2093030 B1 EP 2093030B1 EP 20090001247 EP20090001247 EP 20090001247 EP 09001247 A EP09001247 A EP 09001247A EP 2093030 B1 EP2093030 B1 EP 2093030B1
Authority
EP
European Patent Office
Prior art keywords
out part
punched out
opening
ejection
anvil
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.)
Not-in-force
Application number
EP20090001247
Other languages
German (de)
English (en)
Other versions
EP2093030A1 (fr
Inventor
Timo Steimer
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.)
MS Spaichingen GmbH
Original Assignee
MS Spaichingen 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 MS Spaichingen GmbH filed Critical MS Spaichingen GmbH
Publication of EP2093030A1 publication Critical patent/EP2093030A1/fr
Application granted granted Critical
Publication of EP2093030B1 publication Critical patent/EP2093030B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
    • 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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1854—Means for removing cut-out material or waste by non mechanical means by air under pressure
    • 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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D2007/1881—Means for removing cut-out material or waste using countertools
    • 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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1818—Means for removing cut-out material or waste by pushing out
    • 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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1863—Means for removing cut-out material or waste by non mechanical means by suction
    • 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
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0448—With subsequent handling [i.e., of product]
    • 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
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0448—With subsequent handling [i.e., of product]
    • Y10T83/0453—By fluid application
    • 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
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2066—By fluid current
    • Y10T83/207—By suction means
    • 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
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2096—Means to move product out of contact with tool
    • Y10T83/2135—Moving stripper timed with tool stroke
    • Y10T83/2163—Stripper biased against product
    • Y10T83/2166—Spring biased stripper
    • 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
    • Y10T83/00—Cutting
    • Y10T83/97—Miscellaneous

Definitions

  • the invention relates to a method for the removal of punching waste when Messeraufsatzêt-punching, in which for producing a punching opening in a supported on the end face of a cylindrical anvil and this axially movable bottom workpiece by means of a punch cutting a part of the workpiece is punched out and the punched-out part prior to its removal rests on the axially movable in the cylindrical anvil floor. It further relates to a device according to the preamble of claim 16.
  • the invention has for its object to provide an improved method and an improved device of the type mentioned, with which the aforementioned problems are eliminated. It should be increased in the simplest possible way in particular the reliability in the removal of punching waste.
  • this object is achieved in that the movable floor withdrawn after stamping together with the punched part into the region of a provided in the cylindrical anvil lateral ejection opening in the cylindrical anvil and the supported on the retracted floor stamped part then by Energizing with a corresponding force across the axial direction through the ejection opening is ejected.
  • the movable bottom is preferably arranged in a punching die.
  • the force to be applied for ejecting the punched-out part is preferably applied to the stamped-out part through an anvil opening opposite the ejection opening.
  • the punched-out part is ejected through the ejection opening by a short force pulse.
  • the punched-out part is ejected mechanically through the ejection opening.
  • the punched-out part can be ejected through the ejection opening, in particular via a slide or the like.
  • a slide can be guided, in particular, from the outside through the anvil opening opposite the ejection opening.
  • the punched-out part is pneumatically ejected through the ejection opening.
  • the punched-out part can be ejected in particular through a blast of compressed air through the ejection opening.
  • the compressed air for ejecting the punched-out part is introduced from the outside through the anvil opening opposite the ejection opening into the anvil.
  • the ejection opening can be designed in particular slit-like.
  • the height and width of the ejection slot are preferably selected only slightly larger than the width or height of the punched-out part.
  • a preferred practical embodiment of the method according to the invention is characterized in that the anvil opening opposite the ejection opening is designed as a slot nozzle and the punched-out part to be ejected is acted upon via this slot nozzle.
  • the slot nozzle advantageously extends at least substantially perpendicularly to the ejection slot, whereby canting of the stamped-out part during passage through the ejection slot is avoided.
  • the passage comprising the ejection opening and the passage opening opposite this is preferably monitored in particular by means of a light barrier and / or the like, whereby the process control is simplified.
  • the punched part When retracting the movable floor, the punched part can be held by vacuum on the ground.
  • the object specified above is inventively achieved in that it is designed so that the movable floor is retractable into the cylindrical anvil only after stamping together with the punched part into the region of a provided in the cylindrical anvil side ejection opening and Means are provided for subsequently ejecting the punched-out part supported on the retracted floor by applying a corresponding force transversely to the axial direction through the ejection opening.
  • the spring base can be slightly larger than the punched opening.
  • the retractable spring base is advantageous because often after stamping an embossing process should be done with the shoulder of the punch and this sufficient clearance must be available below the punch.
  • the spring base pulls back down together with the punched-out part.
  • the punched-out part can be ejected as long as the spring base remains in its lower position, in which the stamped-out part faces the ejection opening.
  • a slot can be milled out of the fixed anvil, through which the punched-out part is ejected.
  • the diameter of the slot is expediently only slightly larger than the diameter of the waste piece or stamped part. It has been found that such an ejection slot does not affect the stability of the anvil, provided that the usual punching forces and mechanical dimensions are observed.
  • the removal of the punched-out part is advantageously carried out by a short force pulse, which can be generated either mechanically, for example, with a universal stamp or by a blast of compressed air.
  • This universal removal can be included in the design be and requires only minor adjustments to the punched out or punched out part at startup.
  • the nozzle in question may be formed in particular as a slot nozzle. In this case, it can extend in particular perpendicular to the ejection slot, whereby tilting of the punched-out part is avoided when passing through the ejection slot.
  • the process control can be correspondingly simplified. It can thus be monitored in a simple and reliable manner, in particular the removal process.
  • the slider can be designed in particular in the form of a stamp or the like.
  • Fig. 1 to 3 show a schematic perspective partial view of an exemplary embodiment of an apparatus 10 for the removal of punching waste during punching, in particular knife attachment cut punching.
  • the device 10 comprises a cylindrical anvil 12 and an axially movable in this particular, resilient bottom 14.
  • this serves axially, i. in the longitudinal direction of the anvil 12 movable bottom 14 as a support for a part 16 which has been punched out of a supported on an end face 18 of the anvil 12 workpiece by means of a punching blade.
  • the movable bottom 14 is retractable together with the punched-out part 16 into the region of a lateral discharge opening 20 provided in the cylindrical anvil 12 into the cylindrical anvil 12.
  • the cylindrical anvil 12 is provided on the opposite side of the ejection opening 20 with an opening 24 through which the force to be ejected for ejecting the punched-out part can be applied to the punched-out part 16.
  • this force is applied via the already mentioned force application means 22 which can be attached to the anvil opening 24 provided side of this anvil opening 24 adjacent to the anvil 12, for example with this screwed.
  • the anvil for this purpose may be provided with mounting holes 26, each of which may have an internal thread, in which the Kraftbeierschlagungsstoff 22 on the anvil 12 holding screws are screwed.
  • the anvil 12 may be flattened in the region 28 in which the force-applying means 22 are attached to the anvil 12.
  • the force-applying means 22 may in particular be designed so that the punched-out part 16 is ejected by a short force pulse.
  • mechanical force-applying means 22 may in particular comprise a slide, via which the punched-out part 16 can be ejected through the ejection opening 20.
  • a slide for ejecting the punched out Part 16 are passed from the outside through the discharge opening 20 opposite anvil opening 24.
  • pneumatic force application means 22 may be provided.
  • the pneumatic force-applying means 22 may in particular be designed so that the punched-out part is ejected through the ejection opening 20 via a blast of compressed air.
  • the compressed air for ejecting the punched-out part 16 is introduced from outside through the anvil opening 24 opposite the ejection opening 20 into the anvil 12.
  • the ejection opening 20 may be designed in particular slit-like, wherein the height and width of the ejection slot are expediently chosen only slightly larger than the maximum width or height of the punched-out part 16.
  • the discharge opening 20 opposite anvil opening 24 expediently designed as a slot nozzle.
  • the ejected part 16 is thus acted upon in this case via this slot nozzle with compressed air.
  • the slot nozzle 24 expediently extends perpendicular to the ejection slot 20.
  • monitoring means for monitoring the discharge opening 20 and this opposite anvil opening 24 comprehensive passage be provided, whereby the process control is facilitated accordingly.
  • these monitoring means may comprise, for example, a light barrier or the like.
  • means 30 are provided to hold the punched-out part 16 during retraction of the movable bottom 14 by vacuum on this.
  • the sprung bottom 14 can be made annular, and the punched-out part 16 are applied through the means 30 through the annular bottom 14 through vacuum.
  • a suitably designed control and / or regulating device can be provided.
  • This control and / or regulating device may in particular be integrated into a control and / or regulating device provided for controlling and / or regulating the remaining tool part, in particular the punch and the punching blade.
  • the device 10 While in the Fig. 1 the device 10 is shown in a phase in which the movable bottom 14 supporting the punched-out part 16 still assumes its upper position, the device 10 is in the Fig. 2 and 3 each shown in a phase in which the movable floor 14 already occupies its retracted position, wherein the punched-out part 16 is already partially ejected through the ejection opening or the ejection slot 20 therethrough.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Details Of Cutting Devices (AREA)

Claims (15)

  1. Procédé pour supprimer des rebuts de poinçonnage lors du poinçonnage en découpe par application d'un couteau, dans lequel, pour engendrer une ouverture poinçonnée dans une pièce à oeuvrer soutenue sur la face frontale (18) d'une enclume cylindrique (12) et sur un fond (14) axialement déplaçable dans cette enclume, au moyen d'un tranchant de poinçonnage, on poinçonne une partie (16) de la pièce à oeuvrer et la partie poinçonnée (16) repose, avant sa suppression, sur le fond (14) axialement déplaçable dans l'enclume cylindrique (12),
    caractérisé en ce que
    le fond déplaçable (14) est rétracté dans l'enclume cylindrique (12), uniquement après le poinçonnage et conjointement avec la partie poinçonnée (16) jusque dans la région d'une ouverture d'éjection latérale (20) prévue dans l'enclume cylindrique (12) et la partie poinçonnée (14) soutenue sur le fond (14) rétracté est ensuite éjectée à travers l'ouverture d'éjection (20) par application d'une force correspondante transversalement à la direction axiale.
  2. Procédé selon la revendication 1,
    caractérisé en ce que la force à appliquer pour l'éjection de la partie poinçonnée (16) est appliquée sur la partie poinçonnée (16) à travers une ouverture (24) de l'enclume située à l'opposé de l'ouverture d'éjection (20), et/ou
    en ce que la partie poinçonnée (16) est éjectée à travers l'ouverture d'éjection (20) par une courte impulsion de force.
  3. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que la partie poinçonnée (16) est éjectée mécaniquement à travers l'ouverture d'éjection (20), et de préférence la partie poinçonnée (16) est éjectée à travers l'ouverture d'éjection (20) au moyen d'un poussoir et le poussoir est ici de préférence guidé, pour éjecter la partie poinçonnée (16) depuis l'extérieur en traversant l'ouverture de l'enclume (24) située à l'opposé de l'ouverture d'éjection (20).
  4. Procédé selon la revendication 1 ou 2,
    caractérisé en ce que la partie poinçonnée (16) est éjectée à travers l'ouverture d'éjection (20) de manière pneumatique, et la partie poinçonnée (16) est de préférence éjectée à travers l'ouverture d'éjection (20) au moyen d'une bouffée d'air comprimé, et
    en ce que l'air comprimé destiné à l'éjection de la partie poinçonnée (16) est de préférence introduit dans l'enclume (12) depuis l'extérieur à travers l'ouverture de l'enclume (24) située à l'opposé de l'ouverture d'éjection (20).
  5. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que l'ouverture d'éjection (20) est réalisée à la manière d'une fente et la hauteur et la largeur de la forme d'éjection (20) sont de préférence choisies seulement légèrement plus grandes que la largeur ou respectivement la hauteur de la partie poinçonnée (16).
  6. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que l'ouverture de l'enclume (24) située à l'opposé de l'ouverture d'éjection (20) est réalisée à la manière d'une buse en fente, et la partie poinçonnée à éjecter (16) est attaquée via cette buse en fente, et l'ouverture d'éjection est de préférence réalisée à la manière d'une fente, ladite buse en fente (24) s'étendant au moins sensiblement perpendiculairement à la fente d'éjection (20).
  7. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que la traversée qui inclut l'ouverture d'éjection (20) et l'ouverture de l'enclume (24) située à l'opposé de celle-ci est surveillée, en particulier au moyen d'une barrière lumineuse et/ou similaire,
    et/ou en ce que, lors de la rétraction du fond déplaçable (14) la partie poinçonnée (16) est retenue par un vide contre celui-ci.
  8. Dispositif (10) pour éliminer des déchets de poinçonnage lors du poinçonnage en découpe par application d'un couteau, comprenant une enclume cylindrique (12) et un fond (14) axialement déplaçable dans celle-ci, qui sert d'appui pour une partie (16) qui a été poinçonnée au moyen d'un tranchant de poinçonnage depuis une pièce à oeuvrer soutenue sur une face frontale (18) de l'enclume (12) et sur le fond (14), en particulier pour la mise en oeuvre du procédé selon l'une des revendications précédentes,
    caractérisé en ce que le dispositif est ainsi réalisé que le fond déplaçable (14) est rétractable dans l'enclume cylindrique (12) uniquement après le poinçonnage et conjointement avec la partie poinçonnée (16) jusque dans la région d'une ouverture d'éjection (20) latérale prévue dans l'enclume cylindrique (12), et il est prévu des moyens pour éjecter ensuite la partie poinçonnée (16) soutenue sur le fond rétracté (14) par application d'une force correspondante transversalement à la direction axiale à travers l'ouverture d'éjection (20).
  9. Dispositif selon la revendication 8,
    caractérisé en ce que l'enclume cylindrique (12) est pourvue d'une ouverture (24) sur le côté situé à l'opposé de l'ouverture d'éjection (20), à travers laquelle peut être appliquée sur la partie poinçonnée (16) la force à appliquer pour l'éjection de la partie poinçonnée (16),
    et/ou en ce que les moyens d'application de force (22) sont ainsi conçus que la partie poinçonnée est éjectée par une brève impulsion de force.
  10. Dispositif selon la revendication 8 ou 9,
    caractérisé en ce qu'il est prévu des moyens mécaniques d'application de force (22), lesdits moyens mécaniques d'application de force (22) comprenant de préférence un poussoir au moyen duquel la partie poinçonnée (16) peut être éjectée à travers l'ouverture d'éjection et, pour éjecter la partie poinçonnée (16), le poussoir est de préférence guidé depuis l'extérieur à travers l'ouverture de l'enclume (24) située à l'opposé de l'ouverture d'éjection (20).
  11. Dispositif selon la revendication 8 ou 9,
    caractérisé en ce qu'il est prévu des moyens d'application de force pneumatiques (22), lesdits moyens d'application de force pneumatiques (22) étant de préférence ainsi réalisés que la partie poinçonnée est éjectée à travers l'ouverture d'éjection (20) au moyen d'une bouffée d'air comprimé, et
    en ce que l'air comprimé pour éjecter la partie poinçonnée (16) est de préférence susceptible d'être introduit dans l'enclume (12) depuis l'extérieur en traversant l'ouverture de l'enclume (24) située à l'opposé de l'ouverture d'éjection (20).
  12. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que l'ouverture d'éjection (20) est réalisée à la manière d'une fente, et la hauteur et la largeur de la fente d'éjection (20) sont de préférence choisies uniquement légèrement plus grandes que la largeur ou la hauteur maximale de la partie poinçonnée (16).
  13. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que l'ouverture de l'enclume (24) située à l'opposé de l'ouverture d'éjection (20) est réalisée comme une buse en fente, et la partie poinçonnée (16) à éjecter est susceptible d'être attaquée via cette buse en fente, et l'ouverture d'éjection est de préférence réalisée à la manière d'une fente, et la buse en fente (24) s'étend au moins sensiblement perpendiculairement à la fente d'éjection (20).
  14. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce qu'il est prévu des moyens pour la surveillance du passage qui inclut l'ouverture d'éjection (20) et l'ouverture de l'enclume (24) située à l'opposé de celle-ci, et/ou
    en ce que les moyens de surveillance comprennent une barrière lumineuse.
  15. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce qu'il est prévu des moyens (30) pour retenir la partie poinçonnée (16), lors de la rétraction du fond déplaçable (14), par un vide contre celui-ci.
EP20090001247 2008-02-20 2009-01-29 Procédé et dispositif destinés au retrait de déchets d'une presse Not-in-force EP2093030B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810010127 DE102008010127A1 (de) 2008-02-20 2008-02-20 Verfahren und Vorrichtung zur Entfernung von Stanzabfällen

Publications (2)

Publication Number Publication Date
EP2093030A1 EP2093030A1 (fr) 2009-08-26
EP2093030B1 true EP2093030B1 (fr) 2013-11-06

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Application Number Title Priority Date Filing Date
EP20090001247 Not-in-force EP2093030B1 (fr) 2008-02-20 2009-01-29 Procédé et dispositif destinés au retrait de déchets d'une presse

Country Status (4)

Country Link
US (1) US20090288531A1 (fr)
EP (1) EP2093030B1 (fr)
DE (1) DE102008010127A1 (fr)
ES (1) ES2445452T3 (fr)

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USD736280S1 (en) 2012-04-11 2015-08-11 Milwaukee Electric Tool Corporation Die
CN111791302A (zh) * 2020-06-22 2020-10-20 孙苗 一种led灯条加工用多孔开孔装置
CN115519022B (zh) * 2022-09-20 2023-05-23 江西永德立新能源有限公司 一种用于电池电芯打孔的冲孔装置
CN116727556A (zh) * 2023-06-21 2023-09-12 昶辰(佛山)特殊钢有限公司 一种压花工艺的电饭煲加工装置及其加工方法

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US6067830A (en) 1999-07-28 2000-05-30 Ti Corporate Services Limited Method and apparatus for forming opposing holes in a side wall of a tubular workpiece

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US20090288531A1 (en) 2009-11-26
EP2093030A1 (fr) 2009-08-26
DE102008010127A1 (de) 2009-08-27
ES2445452T3 (es) 2014-03-03

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