EP2502716A1 - Outil pour une machine de traitement de tôle et procédé de séparation d'une feuille - Google Patents

Outil pour une machine de traitement de tôle et procédé de séparation d'une feuille Download PDF

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Publication number
EP2502716A1
EP2502716A1 EP20110159046 EP11159046A EP2502716A1 EP 2502716 A1 EP2502716 A1 EP 2502716A1 EP 20110159046 EP20110159046 EP 20110159046 EP 11159046 A EP11159046 A EP 11159046A EP 2502716 A1 EP2502716 A1 EP 2502716A1
Authority
EP
European Patent Office
Prior art keywords
sheet
tool
ball
receptacle
film
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.)
Granted
Application number
EP20110159046
Other languages
German (de)
English (en)
Other versions
EP2502716B1 (fr
Inventor
Oliver Steingrüber
Holger Kaczyna
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.)
Filing date
Publication date
Application filed by Trumpf Werkzeugmaschinen SE and Co KG filed Critical Trumpf Werkzeugmaschinen SE and Co KG
Priority to EP20110159046 priority Critical patent/EP2502716B1/fr
Priority to US13/424,695 priority patent/US9339942B2/en
Priority to CN201210074195.5A priority patent/CN102689319B/zh
Priority to JP2012063447A priority patent/JP5812909B2/ja
Publication of EP2502716A1 publication Critical patent/EP2502716A1/fr
Application granted granted Critical
Publication of EP2502716B1 publication Critical patent/EP2502716B1/fr
Active 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
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/04—Severing by squeezing
    • 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
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/08—Making a superficial cut in the surface of the work without removal of material, e.g. scoring, incising
    • B26D3/085—On sheet material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/08—Apparatus, e.g. for photomechanical printing surfaces
    • 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
    • B26F1/3806—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface
    • B26F1/3813—Cutting-out; Stamping-out wherein relative movements of tool head and work during cutting have a component tangential to the work surface wherein the tool head is moved in a plane parallel to the work in a coordinate system fixed with respect to the work
    • 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
    • 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
    • Y10T83/263—With means to apply transient nonpropellant fluent material to tool or work
    • 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
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6656—Rectilinear movement only
    • 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
    • Y10T83/929—Tool or tool with support
    • Y10T83/9372—Rotatable type

Definitions

  • the invention relates to a tool for a sheet metal working machine and a method for separating a film, in particular a tool for a sheet metal working machine and a method for separating a film which is applied to a sheet to be processed for protection against scratching.
  • the scriber pin has a 90 ° point angle and is spring loaded to cut the film but not damage the surface of the sheet.
  • the necessary contact pressure can be varied by using compression springs with different contact pressures. Even with slight unevenness in the surface structure or differences in thickness of the sheet, however, increases the resistance, which is brought to the tool. This easily leads to scratches or marks on the sheet, especially in a processing direction transverse to the direction of a brushed sheet metal.
  • the invention has for its object to eliminate these disadvantages and to provide a tool that prepares a portion of a sheet for processing without the Surface of the sheet to damage, and can be generated with the arbitrary contours of a processing area.
  • the tool has a rotatably mounted ball.
  • the rotatably mounted ball has the advantage that the film is separated with a rolling separating movement. In the process, any obstacles that may occur are rolled over without causing any scratches or impressions. Due to the rolling movement, no sliding movement occurs between the cutting tool and the sheet metal surface, so that the wear of the ball is minimal. It is also possible to separate the film in any tracks, so even with tight radii. In addition, it is possible to apply stronger contact forces to the tool, since the rolling surface treats the sheet surface more gently than during a sliding movement. As a result, uneven films can be reliably separated.
  • Fig. 1 shows a punching machine 1 as a sheet metal working machine according to one embodiment.
  • laser processing machines such as laser cutting machines or laser welding machines, or combined punching / laser cutting machines are possible.
  • the punching machine 1 has a C-frame 2 as an essential part.
  • the C-frame 2 consists of a torsionally rigid welded steel construction.
  • a hydraulic unit 3 is arranged as an energy source for punching movements.
  • the punching machine 1 to a machine control device, not shown, which is connected to all the actuators of the punching machine 1 and controls the actuators.
  • a workpiece support 4 in the form of a machine table for placing a workpiece is provided on the lower inside of the C-frame 2.
  • the workpiece is here a plate-shaped plate 10th
  • a workpiece movement device 5 including a guide and a cross rail with clamps for Gripping and moving the sheet 10 on the workpiece support means 4, is provided.
  • a plunger 6 is provided with a plunger control 7.
  • the plunger 6 is controlled so that it can be stopped in the region of its stroke in a Z direction in any position, and thus the plunger can rest on a determinable distance between the plunger 6 and on the workpiece support means 4 Sheet 10 are moved, and the determinable distance can be maintained during movement of the sheet 10 by means of the workpiece moving means 5.
  • an upper tool holder 8 for receiving an upper part of a punching tool and other tools, such as. of forming tools or of the tool according to the invention.
  • a lower tool holder 9 for receiving a lower part of punching tools and other tools, e.g. of forming tools or of the tool according to the invention.
  • the sheet 10 is positioned for a machining operation by the workpiece moving means 5 moving the gripped sheet in an X-direction and a Y-direction.
  • the sheet 10 slides in the X direction on the machine table and is moved in the Y direction together with the machine table.
  • the machining process for example, a punching process, after the positioning of the sheet 10, so that the point to be machined of the sheet 10 at a defined position in the Area of the punching tool is triggered.
  • the plunger 6 moves downward a predetermined maximum or other defined stroke and punches an opening in the sheet 10. Then the plunger 6 moves back up to an upper position and the sheet 10 is repositioned for the next machining operation.
  • Fig. 2 is a systematic representation of a tool 11 for separating a protective film on the sheet 10.
  • the tool 11 has a ball receiving device 12, which here has a cylindrical portion and a frusto-conical portion.
  • the frusto-conical portion has a receiving space 14 at one end 13, which, as shown later, faces the sheet 10.
  • the receiving space 14 has at the end 13 an opening 15.
  • the receiving space is formed essentially spherical.
  • a ball 16 is received in the receiving space 14.
  • the receiving space 14 is designed with respect to the ball 16 so that the ball 16 is rotatably mounted in the receiving space 14 of the tool 11 but not displaceable.
  • the ball 16 protrudes through the opening 15 from the ball receiving device 12.
  • the ball 16 is made of a material that is harder than the material of the sheet 10 to avoid wear, such as flattening of the ball 16, if the ball 16 without rolling over the sheet 10 slides, which then causes problems a further rolling of the ball 16 leads.
  • the material and the surface of the ball 16 are to be chosen so that, together with the material and the surface of the ball receiving device 12 is a low coefficient of friction.
  • the ball 16 is in this embodiment made of ceramic, but may alternatively consist of another suitable material.
  • the Ball 16 has a diameter which is smaller than 1 mm for separating the usual films. As favorable, a diameter of 0.5 mm or alternatively smaller has been found.
  • Fig. 3 shows a schematic representation of another alternative embodiment of the tool 11 during the separation of a film 18.
  • the film 18 is adhesively applied to the sheet 10 to protect the sheet 10 from scratches.
  • the sheet 10 may be a flat sheet metal plate or have other shapes, for example, be curved.
  • the tool 11 in this embodiment in addition to the in Fig. 2
  • a cavity 17, which serves to receive a fluid In the embodiment shown a cavity 17, which serves to receive a fluid.
  • the cavity 17 is connected to the receiving space 14.
  • the fluid in this embodiment is a lubricant for reducing the coefficient of friction between a surface of the ball 16 and an inner surface of the receiving space 14. This further improves the rolling of the ball 16 on the plate.
  • the end 13 of the ball receiving device 12 faces the metal sheet 10.
  • the ball 16 completely penetrates the film 18 so that the ball 16 contacts the surface of the sheet 10.
  • the tool 11 is moved in a direction A. In the direction of movement A in front of the ball 16, the film 18 is shown before separation, whereas in the direction of movement A behind the ball 15, the film 18 is severed.
  • Fig. 4 shown embodiment of the tool 11 is formed so that the tool 11 can be received in the upper tool holder 8 of the punching machine 1.
  • the tool 11 at the upper end of a punch shaft 19 which is formed at its upper end cylindrical with a frusto-conical groove is so that it is recorded positively and without play in the tool holders 8.
  • the tool 11 is in Fig. 4 shown in an installed position in the upper tool holder 8.
  • the tool 11 also has a lower portion 20. Through the lower portion 20 and from the lower portion 20 through the punch shaft 19, a blind hole 27 extends.
  • Fig. 4 is at the lower end of the tool 11, the ball receiving device 12 is provided.
  • the tool also has a socket 21.
  • the bush 21 is slidably received substantially in the lower portion 20, wherein a guide is formed with a sliding bearing between an inner wall of the blind hole 27, substantially in the lower portion 20, and a peripheral surface of the sleeve 21.
  • a sleeve 22 is received in the socket 21, a sleeve 22 is received.
  • the sleeve 22 receives the ball receiving device 12 so that the ball receiving device 12 is fixedly disposed in the sleeve 22.
  • the sleeve 22 is releasably, ie interchangeable, by means of a pressure piece 23, secured in the socket 21.
  • the ball receiving device 12 is slidably received in the tool 11 in a direction to the sheet 10 facing the end 13 and in a direction away from the end 13 away.
  • a lower portion of a bolt 24 is also received.
  • the bolt 24 has a circumferential annular portion 25 with the lower portion adjacent thereto and an upper portion adjacent thereto.
  • the diameter of the ring portion 25 is greater than the diameter of the lower portion and the diameter of the upper portion of the bolt 24.
  • the upper portion of the bolt 24 is surrounded by a biasing member 26 which is supported at one end to the annular portion 25 in the form of a helical spring , Another end of the Biasing member 26 rests against the upper end of counterbore 27.
  • biasing members such as pneumatic cylinders or other shaped mechanical springs, are also possible.
  • the bush 21 has along its longitudinal direction a recess 28 in a defined length and in a defined axial position, into which a stop screw 29 engages. With the help of the length and the position of the recess 28 together with the stop screw 29, the path is determined by which the sleeve 21, and thus also the sleeve 22 and the ball receiving device 12, can move axially.
  • the biasing element 26 in this case a spiral spring, a biasing force is exerted on the bush 21 and thus on the ball receiving device 12 via the bolt 24 and the sleeve 22.
  • the biasing force is introduced via the recess 28 and the stopper screw 29 in the lower portion 20 of the tool 11. In its rest position, the ball receiving device 12 is located in the tool 11 in a lower position and is biased in the direction of the end 13 out.
  • a device not shown is provided in the tool 11, which makes it possible to adjust the biasing force on the ball receiving device 12.
  • the biasing force adjusting device or alternative suitable device of the tool 11 may be configured to provide a constant, predetermined adjustable biasing force independent of the way the ball receiving device 12 moves into the tool 11.
  • a device is, for example, a hydraulic or pneumatic cylinder whose fluid used so controlled will be that regardless of the path of the ball receiving device 12 in the tool 11, a constant pressure of the fluid used is maintained.
  • a vote of the path of the plunger 6, so the distance between the upper tool holder 8 and the sheet 10, and the force occurring is possible, the plunger 6 is moved away from the sheet 10, when the force on the ball receiving device 12 too large is moved, and the plunger 6 is moved to the plate 10 when the force on the ball receiving device 12 is too small until the preset force is present again.
  • a provision of a biasing member 26 is possible here, but not mandatory.
  • the force on the ball receiving device 12 may alternatively be detected in the tool 11 or in the punching machine 1, and the plunger 6 is then controlled via the control device of the punching machine 1 and the plunger control 7 so that the set force is present.
  • the tool 11 accommodated here in the upper tool holder 8 is moved downwards in the Z direction, ie it is delivered until the ball 16 penetrates the film 18 (see FIG Fig. 3 ). This position in the Z direction is then maintained.
  • the sheet 10 with the film 18 is then moved so that the film 18 is separated along the path of the ball 16 on the sheet 10 by the rolling movement of the ball 16 on the sheet 10. Any paths, even with small radii, are possible.
  • By closing the path or by the course of the path to sheet edges and / or openings in the sheet creates a separated area of the film, which can be deducted to perform there processing of the sheet can.
  • On the opposite side of the tool 11 of the sheet 10 is used as a counter-holder a flat die or a die used with a ball roller or the like.
  • the machining conditions of the tool 11 improve.
  • the ball 16 can escape against the biasing force, creating a risk of damage to the sheet 10th is further reduced.
  • the biasing force is slightly increased, but this can cause scratches or marks on the sheet in a boundary region of the force.
  • the force with which the ball 15 penetrates the film 18 can be optimally adjusted so that the film is securely separated, but the surface of the sheet 10 is not damaged.
  • the tool 11 does not necessarily have to be received in the upper tool holder 8 of a punching machine 1.
  • a recording in the lower tool holder 9 is possible to separate the film 18 on an underside of the sheet 10.
  • the tool 11 may alternatively be received in a receptacle that is not a tool holder 8, 9 for punching tools, but is provided specifically for the tool 11, for example.
  • This recording can also be provided in one of the alternative sheet metal working machines, for example the laser processing machine.
  • it is not absolutely necessary that the tool 11 is moved toward the sheet 10, but conversely it is possible for the sheet 10 to be moved towards the tool 11.
  • the sheet 10 moves to separate the film, but alternatively, the tool 11 may be accommodated so that it is movable relative to a fixed plate 10.
  • the etchant can be applied by means of the ball 16 to preferably metallic foils, this use being a replacement of the shear cutting of contours in metallic foils.
  • the etchant may also be applied to the surface of the sheet 10 and corresponding surface structures may be etched by means of the tool 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
EP20110159046 2011-03-21 2011-03-21 Outil pour une machine de traitement de tôle et procédé de séparation d'une feuille Active EP2502716B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP20110159046 EP2502716B1 (fr) 2011-03-21 2011-03-21 Outil pour une machine de traitement de tôle et procédé de séparation d'une feuille
US13/424,695 US9339942B2 (en) 2011-03-21 2012-03-20 Foil cutting tools for sheet metal processing machines and related systems and methods
CN201210074195.5A CN102689319B (zh) 2011-03-21 2012-03-20 用于金属板加工机的工具和切割薄膜的方法
JP2012063447A JP5812909B2 (ja) 2011-03-21 2012-03-21 金属薄板加工機械に用いられる、シートを分離するための工具および方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20110159046 EP2502716B1 (fr) 2011-03-21 2011-03-21 Outil pour une machine de traitement de tôle et procédé de séparation d'une feuille

Publications (2)

Publication Number Publication Date
EP2502716A1 true EP2502716A1 (fr) 2012-09-26
EP2502716B1 EP2502716B1 (fr) 2013-11-06

Family

ID=44211795

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20110159046 Active EP2502716B1 (fr) 2011-03-21 2011-03-21 Outil pour une machine de traitement de tôle et procédé de séparation d'une feuille

Country Status (4)

Country Link
US (1) US9339942B2 (fr)
EP (1) EP2502716B1 (fr)
JP (1) JP5812909B2 (fr)
CN (1) CN102689319B (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN110212122A (zh) * 2019-05-09 2019-09-06 台州学院 一种软包锂离子动力电池包装膜冲壳机

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JP6132438B2 (ja) * 2014-03-19 2017-05-24 コマツＮｔｃ株式会社 シングルワイヤ式のワイヤソーによる切断方法およびシングルワイヤ式のワイヤソー
FR3053615B1 (fr) * 2016-07-08 2018-07-27 Precise France Ensemble pour usinage d'une surface, comprenant un effecteur, destine a etre monte sur un bras de robot, et au moins un element d'appui de l'effecteur sur la surface et/ou sur l'outillage avec liaison rotule entre eux
DE202017006942U1 (de) 2017-08-03 2018-12-06 Witec Präzisionstechnik Gmbh Durchtrennen eines Blatts mit einer rotierenden Nadel

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JPH0890989A (ja) * 1994-09-22 1996-04-09 Roland D G Kk 組立用シート体の折り曲げ方法
EP1747859A1 (fr) * 2005-07-29 2007-01-31 Pass Stanztechnik AG Outil à rouleau pour la coupe d'un film appliqué à une pièce ainsi que dispositif de coupe comprenant un tel outil à rouleau
WO2010015357A1 (fr) * 2008-08-05 2010-02-11 Zanetti, Paolo Tête de coupe et d'enlèvement de revêtement de bord devant être montée sur des bancs de coupe de vitres
EP2189259A1 (fr) * 2008-11-19 2010-05-26 Mitsuboshi Diamond Industrial Co., Ltd. Procédé et dispositif de découpe de film en résine, et découpeur utilisé avec celui-ci

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110212122A (zh) * 2019-05-09 2019-09-06 台州学院 一种软包锂离子动力电池包装膜冲壳机
CN110212122B (zh) * 2019-05-09 2022-03-25 台州学院 一种软包锂离子动力电池包装膜冲壳机

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US9339942B2 (en) 2016-05-17
JP2012196757A (ja) 2012-10-18
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