EP2198989B1 - Tool for a stamping machine with an oscillating tool insert - Google Patents

Tool for a stamping machine with an oscillating tool insert Download PDF

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Publication number
EP2198989B1
EP2198989B1 EP20080022324 EP08022324A EP2198989B1 EP 2198989 B1 EP2198989 B1 EP 2198989B1 EP 20080022324 EP20080022324 EP 20080022324 EP 08022324 A EP08022324 A EP 08022324A EP 2198989 B1 EP2198989 B1 EP 2198989B1
Authority
EP
European Patent Office
Prior art keywords
tool
accordance
stamping machine
drive mechanism
insert
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
EP20080022324
Other languages
German (de)
French (fr)
Other versions
EP2198989A1 (en
Inventor
Werner Erlenmaier
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 AT08022324T priority Critical patent/ATE530269T1/en
Priority to EP20080022324 priority patent/EP2198989B1/en
Priority to JP2011542693A priority patent/JP5642089B2/en
Priority to PCT/EP2009/008767 priority patent/WO2010072326A1/en
Priority to CN200980152124.9A priority patent/CN102264487B/en
Publication of EP2198989A1 publication Critical patent/EP2198989A1/en
Priority to US13/164,304 priority patent/US8839654B2/en
Application granted granted Critical
Publication of EP2198989B1 publication Critical patent/EP2198989B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/20—Applications of drives for reducing noise or wear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
    • B44B5/0004—Machines or apparatus for embossing decorations or marks, e.g. embossing coins characterised by the movement of the embossing tool(s), or the movement of the work, during the embossing operation
    • 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
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8696—Means to change datum plane of tool or tool presser stroke
    • Y10T83/8697—For disabling of continuously actuated cutter

Definitions

  • the invention relates to a tool for a punching machine according to the preamble of claim 1, with an oscillating tool insert, which is driven by a drive device integrated in the tool.
  • the sheet metal parts are characterized either by an embossing die, which has a shape corresponding to the desired embossing, and which is impressed by a single machining stroke in the sheet.
  • embossing die which has a shape corresponding to the desired embossing, and which is impressed by a single machining stroke in the sheet.
  • embossing stamp for the desired embossing and thus limits the flexibility.
  • Another possibility is to insert, with the help of marking pens, a grid corresponding to the desired pattern, point by point, into the sheet, the dots being so close that the desired patterns appear as a line or area. It is necessary, especially for surfaces to be imaged, to press a large number of points into the metal sheet.
  • a punch is recorded with a conical tip in the upper tool holder, and offset by means of the drive of the upper tool holder these in an oscillating motion.
  • Upon impact of the tip on the surface of the sheet a point-like depression is pressed with a depth of a few tenths of a millimeter into the sheet.
  • the frequency of the strokes is currently limited to a maximum of 2800 to 3000 strokes / min in the moving masses of the drive, the upper tool holder and the tool.
  • the marking in this form requires, as mentioned above, especially in areas, a large number of points, which also means a large amount of time for the marking and the punching machine occupied so that it is not available for other manufacturing tasks.
  • Patent Abstracts of Japan JP 08 183296 A discloses a tool for signing workpieces.
  • the tool includes a tool holder rotatably mounted in an air supply ring of the tool.
  • An engraving pin is secured to the tool holder, which is driven by means of air pressure supplied via a connecting pin.
  • a tool for a punching machine having a drive mechanism that moves the marking pen in an axial direction enables higher stroke frequencies to be achieved because the moving masses are significantly smaller.
  • Fig. 1 is a perspective view of a punching machine 1.
  • An essential part of the machine tool 1 is a C-frame 2.
  • the C-frame 2 consists of a torsion-resistant welded steel construction.
  • a hydraulic unit 3 is provided at the rear end of the C-frame 2.
  • the punching machine 1 has a machine control device, not shown, in a separate housing.
  • the machine control device is connected to all the actuators of the punching machine 1 and controls their movements.
  • the machine control device has a keyboard and a monitor as input and output means.
  • the control functions are performed by microcontrollers, wherein the processing programs and operating parameters are stored in a memory area of the machine control device.
  • a transverse rail 4 is provided with a guide 19 for the cross rail 4.
  • the transverse rail 4 has on its front side surface a tool magazine 5, in which a punching tool 6 is shown, and clamping claws 7. With the guide 19 for the cross rail 4, a machine table 8 is connected.
  • the clamps 7 hold a workpiece to be machined, here a sheet 9, firmly.
  • the clamping claws 7 may be arranged on the cross rail 4 at suitable positions, so that the sheet 9 is securely held, but the sheet 9 is not used in places where machining is to take place.
  • the cross rail 4 has, depending on the sheet size, a suitable number of clamping claws 7, in the present case two on. Several clamps 7 are also possible.
  • the punching machine 1 has a punch 10.
  • the plunger 10 is connected to a plunger control device 11, which in turn is connected to the engine control device. Furthermore, the plunger 10 has a first upper rotary drive 14, which rotates the plunger 10 about a vertical axis 20 of the plunger 10.
  • the plunger 10 has an upper tool holder 12.
  • a tool upper part 17 of the tool 6 is received and held positively and without play.
  • the first upper rotary drive 14 rotates the upper tool holder and allows locking in any angular position.
  • the machine tool 1 has a locking device 15 for locking only a part of the upper tool part 17.
  • a lower tool holder 13 is arranged in the region of the machine table 8.
  • the central axis of the lower tool holder 13 is the axis 20.
  • the lower tool holder 13 has a lower rotary drive 16.
  • the rotary drive 16 rotates the lower tool holder 13 and allows a lock in any angular position.
  • a lower tool part 18 of the tool 6 is received.
  • the sheet 9 is positioned for a machining operation, wherein the machine table 8 moves together with the guide 19 and the cross rail 4 with the clamping claws 7 in an X direction, and the cross rail 4 moves with the clamping claws 7 in a Y direction. At this time, the sheet 9 slides in the Y-direction relative to the machine table 8, scratching the sheet 9 by suitable means, e.g. movable balls or brush strips is prevented.
  • the positioning of the sheet 9 over the cross rail 4 is effected by linear drives, not shown, which are controlled by the machine control device.
  • the machining operation e.g. a punching operation, after the positioning of the sheet 9, so that the point to be machined of the sheet 9 is in the region of the axis 20, triggered.
  • the plunger 10 moves downwards by a stroke which may correspond to the maximum stroke or a predetermined stroke which is shorter than the maximum stroke. After moving a stroke that is shorter than the maximum stroke, the plunger 10 either moves up or down to another predetermined position, and then back to its upper end position. The sheet is then repositioned for the next machining operation.
  • Fig. 2 shows the tool part 41 of a first embodiment of the tool according to the invention with a central axis corresponding to the axis 20.
  • the tool part 41 has a punch shaft 22 at the upper end.
  • the punch shaft 22 is cylindrically shaped at its upper end with a frusto-conical recess so that it can be inserted into the upper tool holder 12 (FIG. Fig.1 ) of the Punching machine 1 is recorded positively and without play.
  • At the lower end of the stamp shaft 22 is disc-shaped. On the lower side of the disc-shaped portion, a circular path circulating around the axis 20 is formed with a cross section of a circle segment. In the center, the stamp shank 22 starting from the bottom on a cylindrical countersinking.
  • the tool guide 23 is plate-shaped at its lower end and has on the upper side of the plate-shaped portion around the axis 20 encircling circular track, also with a circular segment-shaped cross section on.
  • the dish-shaped portion On the upper side of the dish-shaped portion, the dish-shaped portion has an integral, centrally upwardly extending, designed as a hollow cylinder 33 section.
  • the section has a slot at its upper end. The slot is parallel to the plane of the drawing through the axis 20 so that viewed from above in the direction of the axis 20, two in Fig. 2a shown cylindrical circular sections 37 are provided which extend upwards.
  • the hollow cylinder 33 has a cylindrical countersinking, which extends into the plate-shaped portion, so that at the lower end of the depression a shoulder is formed.
  • the shoulder is bounded radially outwardly by the inner wall of the hollow cylinder 33 and internally by a circular opening with a diameter D having the tool guide 23 at its lower end.
  • the diameter D of the tool guide 23 is matched to the diameter of a tool insert 24, which is projecting within the tool part 41 from the opening with the diameter D.
  • the tool insert 24 is pin-shaped with a lower end, which serves for processing of the sheet 9, and an upper end whose diameter is increased in a paragraph.
  • the diameter of the lower portion of the tool bit 24 is matched to the diameter D, that this diameter pairing is suitable as a sliding bearing for an axial movement.
  • the materials are also coordinated for this application.
  • the tool part 41 has a drive mechanism that converts a rotary motion into an axial, oscillating motion.
  • the drive mechanism has at least one transmission element 25, a member 26 having a circumferential surface which is not planar but has regular ridges and depressions, and an element 28 disposed between the transmission member 25 and the surface with the ridges and depressions ,
  • the transmission element 25 when viewed in the direction of the axis 20 has a circumferential circular ring 38, the ring is connected by a centrally extending web 39, whereby two with respect to the web opposite circular segment-like recesses 40 arise.
  • the transmission element 25 is inserted into the tool part 41 such that its web 39 is fitted in a slot in the hollow cylinder 33 of the tool guide 23, which is formed by two circular ring sections 37, movable up and down.
  • the circular segment-like recesses 40 laterally of the web 39 allow the two cylindrical circular ring sections 37 of the tool guide 23 to pass through the transmission element 25.
  • the annulus 38 has a thickness that is tuned so that no deformations or vibrations occur during operation.
  • At the outer circumferential edge is provided a downwardly extending paragraph which serves as a tread on its underside.
  • a ring gear is provided as the element 26.
  • the ring gear 26 has on its outer circumferential surface on a circumferential toothing 35.
  • the ring gear 26 has a shoulder 36 between an inner circular through hole having a predetermined diameter, and a cylindrical counterbore having a diameter larger than the predetermined diameter of the inner hole. Between these two diameters radially extends a circular ring surface.
  • this annular surface is not flat, but has an active surface in the form of radial elevations and depressions.
  • elevations and depressions are formed in the form of a wave washer in the ring gear 26, wherein the number of elevations or depressions, depending on the desired ratio of the speed in the stroke frequency, six to ten wells and six to ten increases in the same number.
  • the ridges and valleys are evenly distributed at a resulting angular distance about the circumference of the annular surface.
  • the height difference between the elevations and depressions in the direction of the axis 20 is about 1 mm.
  • the elevations and depressions are formed in an alternative embodiment by the use of a corrugated washer which is inserted into the shoulder of the ring gear 26.
  • the wave washer is secured against rotation with respect to the ring gear 26.
  • the elevations and depressions are not assigned to the ring gear, but to the transmission element 25.
  • the ring gear 26 is mounted relative to the punch shaft 22 and the tool guide 23 rotatable about the axis 20.
  • the ring gear on its seen in the direction of the axis 20 top and bottom of a circular, in section circular segment-shaped career on.
  • first rolling elements 27 In the form of balls, respectively in the raceways between the top of the ring gear 26 and the bottom of the punch shaft 22, and the underside of the ring gear 26 and the top of the tool guide 23 provided.
  • a plurality of second rolling elements 28 is arranged between the shoulder of the ring gear 26 and the transmission element 25, a plurality of second rolling elements 28 is arranged.
  • the rolling elements 28 are evenly distributed over the shoulder of the ring gear 26 at an angular distance corresponding to the angle or a multiple of the angle resulting from the distribution of the peaks and valleys.
  • the lower surface of the heel is flat. Shown below in the drawing plane, the second rolling elements 28 are in contact with the upper surface of the shoulder of the ring gear 26.
  • an elastic member 29, here in the form of a compression spring, is provided above the transmission element 25 is centrally in the direction of the axis 20 within the cylindrical countersinking of the punch shaft 22, an elastic member 29, here in the form of a compression spring, is provided.
  • This compression spring 29 is supported at the upper end of the cylindrical countersink and urges the transmission element 25 down.
  • a second elastic element 30 also in the form of a compression spring on.
  • the compression spring 30 urges in Fig. 2 the tool insert 24 up against the web 39 of the transmission element 25, so that the tool insert 24 is in a defined position by being applied to the web 39.
  • the spring 30 is designed so that even with dynamic forces, the tool insert 24 always rests against the web 39.
  • the tool part 41 is received in the upper tool holder 12 of the plunger 10, and the plunger 10 is moved by a predetermined stroke so that a predetermined distance between the bottom of the tool guide 23 and the top of the sheet at the intersection of the axis 20 with the to be processed sheet 9 is taken.
  • the distance is determined so that the lower end of the tool insert 24 penetrates into a defined depth in the sheet 9.
  • the tool holder 12 is set in rotation at a speed of up to 600 min -1 , so that the tool part 41, with the exception of the locked ring gear 26, is rotated at this speed.
  • a frequency of the oscillating movement of the tool insert 24 of about 6000 min -1 is achieved due to the lower moving masses.
  • the distance between the tool part 41 and the sheet 9 is determined or detected by detecting means, and the plunger 10 is extended or retracted so that the distance remains constant in a process of the sheet 9 for starting a new machining position.
  • the ring gear 26 is defined by the in Fig. 1 shown locking device 15 of the punching machine 1 held. This results between the stamp shaft 22, the tool guide 23, and the Transmission element 25 which are rotatably connected to each other, on the one hand, and the ring gear 26 on the other hand, a relative rotational movement.
  • the second rolling elements 28 to roll, due to the frictional forces between the surfaces of the rolling elements 28 and the surfaces touched by them, on the one hand on the underside of the downwardly extending shoulder of the transmission element 25, and on the other hand on the upper annular surface of the shoulder in the ring gear 26 off.
  • the second rolling elements 28 are pressed by the transmission element 25, which is urged by the spring 29 down against the annular surface of the paragraph.
  • the rolling elements move due to the rolling not only circular about the axis 20, but also by the rolling movement on the undulating surface of the paragraph in the direction of the axis 20 up and down.
  • This up and down movement of the rolling elements 28 acts on the transmission element 25, which thereby likewise carries out an up and down movement, ie an oscillating movement, and transfers this to the tool insert 24.
  • the transmission element 25 would lose contact with rolling elements 28 due to dynamic inertial forces, which would not ensure continuous movement.
  • the biasing force of the spring 29 serves to maintain the normal force between the second rolling elements 28 and the surfaces contacted thereby to obtain the frictional force.
  • the upper tool holder 12 is locked to the punch shaft 22, and instead Ring gear 26 is rotated by a second upper rotary drive.
  • the effect on the oscillating movement is the same as that of the first embodiment.
  • the punch shaft 22 is rotated by the first rotary drive and the ring gear 26 is rotated by the second upper rotary drive in the direction opposite to the rotation of the punch shaft 22 and thus the transfer element 25. Due to the different directions of rotation creates a speed difference between the transmission element 25 and the ring gear 26, which results from the addition of the amounts of individual speeds. As a result, the rotational speed increases relative to each one of the individual rotational movements, so that an overall increase in the frequency of the oscillating movement of the tool insert 24 is achieved.
  • the force for pressing the tool bit 24 in the sheet 9 only the spring 29 applied.
  • the force is limited to the force of the spring, which reduces the risk of damage to the tool when collisions occur between the tool insert 24 and the sheet metal 9 or other obstacles, but also limits the force for machining the metal sheet 9.
  • the lower tool part not shown, has a flat, horizontal surface.
  • the tool lower part is formed with a movable roller or a movable ball, on which the sheet rests to prevent scratching on the underside of the sheet 9.
  • the tool part is designed such that it can be inserted into the lower tool holder 13 (FIG. Fig. 1 ) and can be used as a tool lower part.
  • the tool is then placed on the lower tool holder 13 and the rotary drive 16 in rotation.
  • the tool shell then has here then a flat, horizontal surface.
  • a second embodiment of a second tool part 21 is shown with oscillating tool insert.
  • the construction and the function are substantially similar to those of the embodiment in FIG Fig. 2 , wherein the biasing force of the spring 29 acts in the opposite direction. Therefore, this tool part 21 has the element 26 as a differently shaped second ring gear 31, and a differently shaped second transmission element 32. Since the mode of action is basically the same, the same parts and modes of action are not described again.
  • the second ring gear 31 in this case has the shoulder in its upper portion, and the surface of the shoulder having the ridges and valleys is directed downwards.
  • the second transmission element 32 is not as in the first embodiment substantially as a disc, but cup-shaped, wherein the top in Fig. 3 upside down, executed, with in Fig. 3 the second transmission element 32 is arranged so that the pot bottom is located at the upper end of the second transmission element 25.
  • the same circular segment-like recesses are introduced in this embodiment as in the transfer element 25 in Fig. 2 even if they are in Fig. 3 not to be seen.
  • the bottom of the pot has, due to the recesses, also a central web on which Fig. 3 is shown as a section, whereby a positive connection of the punch shaft 22 and the tool guide 23 is generated with the second transmission element 32.
  • An outer peripheral edge at the lower end of the executed as a pot transmission element 32 has on its upper side a tread for the second rolling elements 28.
  • the first elastic element 29, the spring is provided in this case.
  • the spring 29 urges the tool insert 24 upwards, so that it bears against the second transmission element 32.
  • the transmission element 32 is urged upwards together with the rolling elements 28 against the second ring gear 31 by the force of the spring 29.
  • the rolling elements 28 are caused to frictionally engage the upper surface of the peripheral edge of the second transmission element 32 and the lower undulating surface of the shoulder of the second ring gear 31.
  • the force in the in Fig. 3 As shown in the embodiment shown can be applied to the sheet 9 corresponds, by the positive flow of force from the plunger 10 to the tool bit 24, the force that moves the plunger 10 downwards and is thus greater than that of the spring 29 in Fig. 2 applied force.
  • the tool bit 24 is used with a conical lower end having a point.
  • a conical lower end having a point.
  • tool inserts 24 with differently shaped lower ends for example an end which has a radius at least in one plane and is rounded off, can, in particular when using the tool according to Fig. 3 , are introduced by the larger applicable force, beads in the sheet 9, or further processing on the sheet 9 are performed.
  • the tool insert is made of a hard tool steel or carbide.
  • the drive mechanism may also be driven in alternative embodiments by an electric drive integrated with the tool.
  • an electric drive integrated with the tool.
  • the mechanical principle of the drive mechanism is maintained and a rotary drive movement of the electric drive is converted into a linear oscillating movement.
  • the drive is designed here as an electric motor, whose individual components can also be formed integrally with the components of the tool.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Punching Or Piercing (AREA)
  • Drilling And Boring (AREA)

Abstract

The tool has a tool element (41) for receiving a punching machine in a tool receiver, and oscillated tool inserts (24) movably mounted in the tool element in a direction of an axle (20). The oscillated tool inserts includes a drive mechanism for movement, where the drive mechanism is provided with an internal gear (26) that is rotatably mounted at the axle. The drive mechanism includes a mechanical unit that is adapted to change rotational movement of the internal gear at the axle in the oscillated motion of the oscillated tool inserts.

Description

Die Erfindung betrifft ein Werkzeug für eine Stanzmaschine gemäß dem Oberbegriff des Anspruchs 1, mit einem oszillierenden Werkzeugeinsatz, der von einer im Werkzeug integrierten Antriebseinrichtung angetrieben wird.The invention relates to a tool for a punching machine according to the preamble of claim 1, with an oscillating tool insert, which is driven by a drive device integrated in the tool.

Für angefertigte Blechteile besteht oft die Anforderung, dass sie gekennzeichnet werden. Hierbei werden z.B. Firmen-Logos, Teilenummern, Datum, Materialkennzeichnungen, oder Symbole zur Montage auf die Teile aufgebracht. Bei Blechteilen, die auf Stanzmaschinen bearbeitet werden, bietet sich an, diese Kennzeichnung durch die Stanzmaschinen selbst durchzuführen, um einen erneuten Rüst- und Handlingsaufwand einzusparen.For manufactured sheet metal parts is often the requirement that they are marked. Here, e.g. Company logos, part numbers, date, material markings, or symbols applied to the parts for assembly. For sheet metal parts that are processed on punching machines, offers itself to perform this marking by the punching machines themselves in order to save a renewed set-up and handling effort.

Die Blechteile werden entweder durch einen Prägestempel, der eine Form aufweist, die der gewünschten Prägung entspricht, und die durch einen einzigen Bearbeitungshub in das Blech eingeprägt wird, gekennzeichnet. Dies bedingt aber die Verfügbarkeit des Prägestempels für die gewünschte Prägung und schränkt somit die Flexibilität ein. Eine andere Möglichkeit ist es, mit Hilfe von Signierstiften Punkt für Punkt ein Raster, das dem gewünschten Muster entspricht, in das Blech einzudrücken, wobei die Punkte einen so geringen Abstand aufweisen, dass die gewünschten Muster als Linie oder Fläche erscheinen. Dabei ist es, insbesondere bei abzubildenden Flächen, erforderlich, eine große Anzahl von Punkten in das Blech einzudrücken.The sheet metal parts are characterized either by an embossing die, which has a shape corresponding to the desired embossing, and which is impressed by a single machining stroke in the sheet. However, this requires the availability of the embossing stamp for the desired embossing and thus limits the flexibility. Another possibility is to insert, with the help of marking pens, a grid corresponding to the desired pattern, point by point, into the sheet, the dots being so close that the desired patterns appear as a line or area. It is necessary, especially for surfaces to be imaged, to press a large number of points into the metal sheet.

In bisherigen Verfahren wird ein Stempel mit einer konischen Spitze in die obere Werkzeugaufnahme aufgenommen, und mit Hilfe des Antriebs der oberen Werkzeugaufnahme diese in eine oszillierende Bewegung versetzt. Beim Auftreffen der Spitze auf die Blechoberfläche wird eine punktförmige Senkung mit einer Tiefe von wenigen Zehntelmillimetern in das Blech eingedrückt. Durch die heutigen Antriebskonzepte ist bei den zu bewegenden Massen des Antriebs, der oberen Werkzeugaufnahme und des Werkzeugs, die Frequenz der Hübe derzeit auf maximal 2800 bis 3000 Hübe/min begrenzt.In previous methods, a punch is recorded with a conical tip in the upper tool holder, and offset by means of the drive of the upper tool holder these in an oscillating motion. Upon impact of the tip on the surface of the sheet a point-like depression is pressed with a depth of a few tenths of a millimeter into the sheet. By today's drive concepts, the frequency of the strokes is currently limited to a maximum of 2800 to 3000 strokes / min in the moving masses of the drive, the upper tool holder and the tool.

Die Kennzeichnung in dieser Form erfordert aber, wie oben erwähnt insbesondere bei Flächen, ein große Anzahl an Punkten, was auch einen großen Zeitaufwand für die Kennzeichnung bedeutet und die Stanzmaschine belegt, so dass sie für andere Fertigungsaufgaben nicht zur Verfügung steht.However, the marking in this form requires, as mentioned above, especially in areas, a large number of points, which also means a large amount of time for the marking and the punching machine occupied so that it is not available for other manufacturing tasks.

Patent Abstracts of JapanPatent Abstracts of Japan JP 08 183296 AJP 08 183296 A offenbart ein Werkzeug zum Signieren von Werkstücken. Das Werkzeug enthält einen Werkzeughalter, der drehbar in einen Luftversorgungsring des Werkzeugs gelagert ist. An dem Werkzeughalter ist ein Gravierstift gesichert, der mit Hilfe von über einen Verbindungsstift gelieferten Luftdruck angetrieben wird.discloses a tool for signing workpieces. The tool includes a tool holder rotatably mounted in an air supply ring of the tool. An engraving pin is secured to the tool holder, which is driven by means of air pressure supplied via a connecting pin.

Es ist Aufgabe der Erfindung, die Zeit für die Signierung mit einem Signierstift, bei gleicher Qualität der Signaturen, zu verringern.It is an object of the invention to reduce the time for signing with a marking pen, with the same quality of the signatures.

Die Aufgabe wird durch ein Werkzeug gemäß Anspruch 1 und eine Stanzmaschine gemäß Anspruch 8 gelöst. Weiterbildungen sind in den abhängigen Ansprüchen beschrieben.The object is achieved by a tool according to claim 1 and a punching machine according to claim 8 . Further developments are described in the dependent claims.

Ein Werkzeug für eine Stanzmaschine mit einem Antriebsmechanismus, der den Signierstift in einer axialen Richtung bewegt, ermöglicht das Erzielen von höheren Hubfrequenzen, da die bewegten Massen wesentlich geringer sind.A tool for a punching machine having a drive mechanism that moves the marking pen in an axial direction enables higher stroke frequencies to be achieved because the moving masses are significantly smaller.

Die Erfindung wird anhand von Ausführungsbeispielen unter Bezugnahme auf die beigefügten Zeichnungen erläutert.

Fig. 1
ist die perspektivische Darstellung einer Stanzmaschi- ne mit einem erfindungsgemäßen Werkzeug;
Fig. 2
zeigt das Werkzeugteil mit dem oszillierenden Werkzeugeinsatz in einer ersten Ausführungsform in ei- ner Schnittdarstellung;
Fig. 2a
ist die Darstellung des Schnitts A-A durch das in Fig. 2 gezeigte Werkzeugteil;
Fig. 3
zeigt das Werkzeug mit dem oszillierenden Werkzeugein- satz einer zweiten Ausführungsform in einer Schnitt- darstellung.
The invention will be explained by means of embodiments with reference to the accompanying drawings.
Fig. 1
is the perspective view of a punching machine with a tool according to the invention;
Fig. 2
shows the tool part with the oscillating tool insert in a first embodiment in a sectional view;
Fig. 2a
is the representation of the section AA by the in Fig. 2 shown tool part;
Fig. 3
shows the tool with the oscillating tool insert of a second embodiment in a sectional view.

Fig. 1 ist die perspektivische Darstellung einer Stanzmaschine 1. Ein wesentlicher Bestandteil der Werkzeugmaschine 1 ist ein C-Rahmen 2. Der C-Rahmen 2 besteht aus einer torsionssteifen Schweißkonstruktion aus Stahl. Am hinteren Ende des C-Rahmens 2 ist ein Hydraulikaggregat 3 vorgesehen. Fig. 1 is a perspective view of a punching machine 1. An essential part of the machine tool 1 is a C-frame 2. The C-frame 2 consists of a torsion-resistant welded steel construction. At the rear end of the C-frame 2, a hydraulic unit 3 is provided.

Weiterhin weist die Stanzmaschine 1 eine nicht gezeigte Maschinensteuerungsvorrichtung in einem separaten Gehäuse auf. Die Maschinensteuerungsvorrichtung ist mit sämtlichen Aktuatoren der Stanzmaschine 1 verbunden und steuert deren Bewegungen. Die Maschinensteuerungsvorrichtung weist als Ein- und Ausgabemittel eine Tastatur und einen Monitor auf. Die Steuerungsfunktionen werden von Mikrocontrollern ausgeführt, wobei die Bearbeitungsprogramme und Betriebsparameter in einem Speicherbereich der Maschinensteuerungsvorrichtung abgespeichert sind.Furthermore, the punching machine 1 has a machine control device, not shown, in a separate housing. The machine control device is connected to all the actuators of the punching machine 1 and controls their movements. The machine control device has a keyboard and a monitor as input and output means. The control functions are performed by microcontrollers, wherein the processing programs and operating parameters are stored in a memory area of the machine control device.

Auf der unteren Innenseite des C-Rahmens 2 ist eine Querschiene 4 mit einer Führung 19 für die Querschiene 4 vorgesehen. Die Querschiene 4 weist auf ihrer vorderen Seitenfläche ein Werkzeugmagazin 5, in dem ein Stanzwerkzeug 6 dargestellt ist, und Spannpratzen 7 auf. Mit der Führung 19 für die Querschiene 4 ist ein Maschinentisch 8 verbunden.On the lower inside of the C-frame 2, a transverse rail 4 is provided with a guide 19 for the cross rail 4. The transverse rail 4 has on its front side surface a tool magazine 5, in which a punching tool 6 is shown, and clamping claws 7. With the guide 19 for the cross rail 4, a machine table 8 is connected.

Die Spannpratzen 7 halten ein zu bearbeitendes Werkstück, hier ein Blech 9, fest. Die Spannpratzen 7 können an der Querschiene 4 an geeigneten Positionen angeordnet sein, so dass das Blech 9 sicher festgehalten wird, aber das Blech 9 nicht an Stellen gegriffen wird, an denen eine Bearbeitung stattfinden soll. Die Querschiene 4 weist in Abhängigkeit von der Blechgröße, eine geeignete Anzahl von Spannpratzen 7, im vorliegenden Fall zwei, auf. Mehrere Spannpratzen 7 sind ebenfalls möglich.The clamps 7 hold a workpiece to be machined, here a sheet 9, firmly. The clamping claws 7 may be arranged on the cross rail 4 at suitable positions, so that the sheet 9 is securely held, but the sheet 9 is not used in places where machining is to take place. The cross rail 4 has, depending on the sheet size, a suitable number of clamping claws 7, in the present case two on. Several clamps 7 are also possible.

Im vorderen Bereich der oberen Innenseite des C-Rahmens 2 weist die Stanzmaschine 1 einen Stempel 10 auf. Der Stößel 10 ist mit einer Stößelsteuerungsvorrichtung 11 verbunden, die wiederum mit der Maschinensteuerungsvorrichtung verbunden ist. Weiterhin weist der Stößel 10 einen ersten oberen Drehantrieb 14 auf, der den Stößel 10 um eine vertikale Achse 20 des Stößels 10 dreht.In the front region of the upper inside of the C-frame 2, the punching machine 1 has a punch 10. The plunger 10 is connected to a plunger control device 11, which in turn is connected to the engine control device. Furthermore, the plunger 10 has a first upper rotary drive 14, which rotates the plunger 10 about a vertical axis 20 of the plunger 10.

Am unteren Ende weist der Stößel 10 eine obere Werkzeugaufnahme 12 auf. In die obere Werkzeugaufnahme 12 wird ein Werkzeugoberteil 17 des Werkzeugs 6 aufgenommen und formschlüssig und spielfrei gehalten. Der erste obere Drehantrieb 14 rotiert die obere Werkzeugaufnahme und ermöglicht eine Arretierung in jeder beliebigen Winkellage. Weiterhin weist die Werkzeugmaschine 1 eine Arretiervorrichtung 15 zum Arretieren nur eines Teils des Werkzeugoberteils 17 auf.At the lower end, the plunger 10 has an upper tool holder 12. In the upper tool holder 12, a tool upper part 17 of the tool 6 is received and held positively and without play. The first upper rotary drive 14 rotates the upper tool holder and allows locking in any angular position. Furthermore, the machine tool 1 has a locking device 15 for locking only a part of the upper tool part 17.

An der unteren Innenseite des C-Rahmens 2 ist im Bereich des Maschinentischs 8 eine untere Werkzeugaufnahme 13 angeordnet. Die Mittelachse der unteren Werkzeugaufnahme 13 ist die Achse 20. Die untere Werkzeugaufnahme 13 weist einen unteren Drehantrieb 16 auf. Der Drehantrieb 16 rotiert die untere Werkzeugaufnahme 13 und ermöglicht eine Arretierung in jeder beliebigen Winkellage. In die untere Werkzeugaufnahme 13 wird ein Werkzeugunterteil 18 des Werkzeugs 6 aufgenommen.On the lower inside of the C-frame 2, a lower tool holder 13 is arranged in the region of the machine table 8. The central axis of the lower tool holder 13 is the axis 20. The lower tool holder 13 has a lower rotary drive 16. The rotary drive 16 rotates the lower tool holder 13 and allows a lock in any angular position. In the lower tool holder 13, a lower tool part 18 of the tool 6 is received.

Im Betrieb wird das Blech 9 für einen Bearbeitungsvorgang positioniert, wobei der Maschinentisch 8 gemeinsam mit der Führung 19 und der Querschiene 4 mit den Spannpratzen 7 in eine X-Richtung verfährt, und die Querschiene 4 mit den Spannpratzen 7 in eine Y-Richtung verfährt. Dabei gleitet das Blech 9 in Y-Richtung relativ zum Maschinentisch 8, wobei ein Verkratzen des Blechs 9 durch geeignete Mittel, wie z.B. bewegliche Kugeln oder Bürstenleisten verhindert wird. Die Positionierung des Blechs 9 über die Querschiene 4 erfolgt durch nicht gezeigte Linearantriebe, die durch die Maschinensteuerungsvorrichtung angesteuert werden.In operation, the sheet 9 is positioned for a machining operation, wherein the machine table 8 moves together with the guide 19 and the cross rail 4 with the clamping claws 7 in an X direction, and the cross rail 4 moves with the clamping claws 7 in a Y direction. At this time, the sheet 9 slides in the Y-direction relative to the machine table 8, scratching the sheet 9 by suitable means, e.g. movable balls or brush strips is prevented. The positioning of the sheet 9 over the cross rail 4 is effected by linear drives, not shown, which are controlled by the machine control device.

Der Bearbeitungsvorgang, z.B. ein Stanzvorgang, wird nach der Positionierung des Blechs 9, so dass sich die zu bearbeitende Stelle des Blechs 9 im Bereich der Achse 20 befindet, ausgelöst. Der Stößel 10 bewegt sich um einen Hubweg, der dem maximalen Hubweg entsprechen kann, oder einem vorbestimmten Hubweg, der kürzer ist als der maximale Hubweg, nach unten. Nach dem Verfahren eines Hubwegs, der kürzer als der maximale Hubweg ist, fährt der Stößel 10 entweder wieder nach oben oder nach unten in eine weitere vorbestimmte Position, und dann wieder in seine obere Endstellung. Im Anschluss wird das Blech für den nächsten Bearbeitungsvorgang neu positioniert.The machining operation, e.g. a punching operation, after the positioning of the sheet 9, so that the point to be machined of the sheet 9 is in the region of the axis 20, triggered. The plunger 10 moves downwards by a stroke which may correspond to the maximum stroke or a predetermined stroke which is shorter than the maximum stroke. After moving a stroke that is shorter than the maximum stroke, the plunger 10 either moves up or down to another predetermined position, and then back to its upper end position. The sheet is then repositioned for the next machining operation.

Fig. 2 zeigt das Werkzeugteil 41 einer ersten Ausführungsform des erfindungsgemäßen Werkzeugs mit einer Mittelachse, die der Achse 20 entspricht. Das Werkzeugteil 41 weist am oberen Ende einen Stempelschaft 22 auf. Der Stempelschaft 22 ist an seinem oberen Ende zylindrisch mit einem kegelstumpfförmigen Einstich geformt, so dass er in die obere Werkzeugaufnahme 12 (Fig.1) der Stanzmaschine 1 formschlüssig und spielfrei aufgenommen wird. Am unteren Ende ist der Stempelschaft 22 scheibenförmig ausgebildet. Auf der unteren Seite des scheibenförmigen Abschnitts ist eine um die Achse 20 umlaufend kreisförmige Laufbahn mit einem Querschnitt eines Kreissegments eingeformt. Im Zentrum weist der Stempelschaft 22 von der Unterseite ausgehend eine zylindrische Senkung auf. Fig. 2 shows the tool part 41 of a first embodiment of the tool according to the invention with a central axis corresponding to the axis 20. The tool part 41 has a punch shaft 22 at the upper end. The punch shaft 22 is cylindrically shaped at its upper end with a frusto-conical recess so that it can be inserted into the upper tool holder 12 (FIG. Fig.1 ) of the Punching machine 1 is recorded positively and without play. At the lower end of the stamp shaft 22 is disc-shaped. On the lower side of the disc-shaped portion, a circular path circulating around the axis 20 is formed with a cross section of a circle segment. In the center, the stamp shank 22 starting from the bottom on a cylindrical countersinking.

An dem Stempelschaft 22 ist nach unten fortgesetzt eine Werkzeugführung 23 befestigt. Die Werkzeugführung 23 ist an ihrem unteren Ende tellerförmig und weist auf der Oberseite des tellerförmigen Abschnitts eine um die Achse 20 umlaufende kreisförmige Laufbahn, ebenfalls mit einem kreissegmentförmigen Querschnitt, auf. Auf der Oberseite des tellerförmigen Abschnitts weist der tellerförmige Abschnitt einen integralen, sich zentral nach oben erstreckenden, als einen Hohlzylinder 33 ausgeführten Abschnitt auf. Der Abschnitt weist an seinem oberen Ende einen Schlitz auf. Der Schlitz verläuft parallel zur Zeichnungsebene durch die Achse 20, so dass von oben in Richtung der Achse 20 betrachtet, zwei in Fig. 2a gezeigte zylindrische Kreisringabschnitte 37 vorgesehen sind, die sich nach oben erstrecken. Der Hohlzylinder 33 weist eine zylindrische Senkung auf, die sich bis in den tellerförmigen Abschnitt erstreckt, so dass am unteren Ende der Senkung ein Absatz gebildet wird. Der Absatz wird radial außen durch die innere Wand des Hohlzylinders 33 und innen durch eine kreisrunde Öffnung mit einem Durchmesser D, die die Werkzeugführung 23 an ihrem unteren Ende aufweist, begrenzt.On the punch shaft 22 is continued down a tool guide 23 is fixed. The tool guide 23 is plate-shaped at its lower end and has on the upper side of the plate-shaped portion around the axis 20 encircling circular track, also with a circular segment-shaped cross section on. On the upper side of the dish-shaped portion, the dish-shaped portion has an integral, centrally upwardly extending, designed as a hollow cylinder 33 section. The section has a slot at its upper end. The slot is parallel to the plane of the drawing through the axis 20 so that viewed from above in the direction of the axis 20, two in Fig. 2a shown cylindrical circular sections 37 are provided which extend upwards. The hollow cylinder 33 has a cylindrical countersinking, which extends into the plate-shaped portion, so that at the lower end of the depression a shoulder is formed. The shoulder is bounded radially outwardly by the inner wall of the hollow cylinder 33 and internally by a circular opening with a diameter D having the tool guide 23 at its lower end.

Der Durchmesser D der Werkzeugführung 23 ist auf den Durchmesser eines Werkzeugeinsatzes 24, der innerhalb des Werkzeugteils 41 aus der Öffnung mit dem Durchmesser D herausragend angeordnet ist, abgestimmt. Der Werkzeugeinsatz 24 ist stiftförmig mit einem unteren Ende, das zur Bearbeitung des Blechs 9 dient, und einem oberen Ende, dessen Durchmesser in einem Absatz vergrößert ist. Der Durchmesser des unteren Abschnitts des Werkzeugeinsatzes 24 ist so auf den Durchmesser D abgestimmt, dass diese Durchmesserpaarung als Gleitlagerung für eine axiale Bewegung geeignet ist. Die Materialien sind ebenfalls für diese Anwendung aufeinander abgestimmt.The diameter D of the tool guide 23 is matched to the diameter of a tool insert 24, which is projecting within the tool part 41 from the opening with the diameter D. The tool insert 24 is pin-shaped with a lower end, which serves for processing of the sheet 9, and an upper end whose diameter is increased in a paragraph. The diameter of the lower portion of the tool bit 24 is matched to the diameter D, that this diameter pairing is suitable as a sliding bearing for an axial movement. The materials are also coordinated for this application.

Das Werkzeugteil 41 weist einen Antriebsmechanismus auf, der eine rotatorische Bewegung in eine axiale, oszillierende Bewegung umwandelt. Der Antriebsmechanismus weist zumindest ein Übertragungselement 25, ein Element 26 mit einer umlaufenden Fläche, die nicht eben ist, sondern regelmäßige Erhöhungen und Vertiefungen aufweist, und ein Element 28, das zwischen dem Übertragungselement 25 und der Fläche mit den Erhöhungen und Vertiefungen angeordnet ist, auf.The tool part 41 has a drive mechanism that converts a rotary motion into an axial, oscillating motion. The drive mechanism has at least one transmission element 25, a member 26 having a circumferential surface which is not planar but has regular ridges and depressions, and an element 28 disposed between the transmission member 25 and the surface with the ridges and depressions ,

Am oberen Ende liegt der Werkzeugeinsatz 24 an dem Übertragungselement 25 an. In Fig. 2a ist gezeigt, dass das Übertragungselement 25 bei Betrachtung in Richtung der Achse 20 einen umlaufenden Kreisring 38 aufweist, dessen Ring durch einen mittig verlaufenden Steg 39 verbunden ist, wodurch zwei bezüglich des Stegs gegenüberliegende kreissegmentartige Aussparungen 40 entstehen. Das Übertragungselement 25 ist so in das Werkzeugteil 41 eingebracht, dass dessen Steg 39 in einem Schlitz in dem Hohlzylinder 33 der Werkzeugführung 23, der durch zwei Kreisringabschnitte 37 gebildet wird, nach oben und unten beweglich eingepasst ist. Die kreissegmentartigen Aussparungen 40 seitlich des Stegs 39 lassen die beiden zylindrischen Kreisringabschnitte 37 der Werkzeugführung 23 durch das Übertragungselement 25 durchtreten. Der Kreisring 38 weist eine Dicke auf, die so abgestimmt ist, dass keine Verformungen oder Schwingungen im Betrieb auftreten. Am äußeren umlaufenden Rand ist ein sich nach unten erstreckender Absatz vorgesehen, der auf seiner Unterseite als Lauffläche dient.At the upper end of the tool insert 24 rests against the transmission element 25. In Fig. 2a It is shown that the transmission element 25 when viewed in the direction of the axis 20 has a circumferential circular ring 38, the ring is connected by a centrally extending web 39, whereby two with respect to the web opposite circular segment-like recesses 40 arise. The transmission element 25 is inserted into the tool part 41 such that its web 39 is fitted in a slot in the hollow cylinder 33 of the tool guide 23, which is formed by two circular ring sections 37, movable up and down. The circular segment-like recesses 40 laterally of the web 39 allow the two cylindrical circular ring sections 37 of the tool guide 23 to pass through the transmission element 25. The annulus 38 has a thickness that is tuned so that no deformations or vibrations occur during operation. At the outer circumferential edge is provided a downwardly extending paragraph which serves as a tread on its underside.

Zwischen dem Stempelschaft 22 und der Werkzeugführung 23 ist als das Element 26 ein Hohlrad vorgesehen. Das Hohlrad 26 weist auf seiner äußeren Umfangsfläche eine umlaufende Verzahnung 35 auf. Auf seiner Innenseite weist das Hohlrad 26 einen Absatz 36 zwischen einer inneren kreisrunden durchgehenden Öffnung mit einem vorbestimmten Durchmesser, und einer zylindrischen Senkung mit einem Durchmesser, der größer ist als der vorbestimmte Durchmesser der inneren Öffnung, auf. Zwischen diesen beiden Durchmessern erstreckt sich radial eine Kreisringfläche. Diese Kreisringfläche ist aber nicht eben, sondern weist eine Wirkfläche in Form von radialen Erhöhungen und Vertiefungen auf. Diese Erhöhungen und Vertiefungen sind in Form einer Wellscheibe in dem Hohlrad 26 ausgebildet, wobei die Anzahl der Erhöhungen bzw. Vertiefungen, abhängig von der gewünschten Übersetzung der Drehzahl in die Hubfrequenz, sechs bis zehn Vertiefungen und sechs bis zehn Erhöhungen in gleicher Anzahl entspricht. Die Erhöhungen und Vertiefungen sind gleichmäßig in einem sich daraus ergebenden Winkelabstand über den Umfang der Kreisringfläche verteilt. Der Höhenunterschied zwischen den Erhöhungen und Vertiefungen in Richtung der Achse 20 beträgt ca. 1 mm.Between the punch shaft 22 and the tool guide 23, a ring gear is provided as the element 26. The ring gear 26 has on its outer circumferential surface on a circumferential toothing 35. On its inside, the ring gear 26 has a shoulder 36 between an inner circular through hole having a predetermined diameter, and a cylindrical counterbore having a diameter larger than the predetermined diameter of the inner hole. Between these two diameters radially extends a circular ring surface. However, this annular surface is not flat, but has an active surface in the form of radial elevations and depressions. These elevations and depressions are formed in the form of a wave washer in the ring gear 26, wherein the number of elevations or depressions, depending on the desired ratio of the speed in the stroke frequency, six to ten wells and six to ten increases in the same number. The ridges and valleys are evenly distributed at a resulting angular distance about the circumference of the annular surface. The height difference between the elevations and depressions in the direction of the axis 20 is about 1 mm.

Die Erhöhungen und Vertiefungen werden in einer alternativen Ausführungsform durch die Verwendung einer Wellscheibe, die in den Absatz des Hohlrads 26 eingebracht wird, gebildet. Die Wellscheibe ist gegenüber dem Hohlrad 26 gegen Verdrehen gesichert.The elevations and depressions are formed in an alternative embodiment by the use of a corrugated washer which is inserted into the shoulder of the ring gear 26. The wave washer is secured against rotation with respect to the ring gear 26.

In einer weiteren alternativen Ausführungsform sind die Erhöhungen und Vertiefungen nicht dem Hohlrad zugeordnet, sondern dem Übertragungselement 25.In a further alternative embodiment, the elevations and depressions are not assigned to the ring gear, but to the transmission element 25.

Das Hohlrad 26 ist relativ zu dem Stempelschaft 22 und der Werkzeugführung 23 um die Achse 20 verdrehbar gelagert. Dazu weist das Hohlrad auf seiner in Richtung der Achse 20 gesehenen Ober- und Unterseite jeweils eine kreisförmige, im Schnitt kreissegmentförmige Laufbahn auf.The ring gear 26 is mounted relative to the punch shaft 22 and the tool guide 23 rotatable about the axis 20. For this purpose, the ring gear on its seen in the direction of the axis 20 top and bottom of a circular, in section circular segment-shaped career on.

Zur Lagerung des Hohlrads 26 zwischen dem Stempelschaft 22 und der Werkzeugführung 23 sind erste Wälzelemente 27 in Form von Kugeln, jeweils in den Laufbahnen zwischen der Oberseite des Hohlrads 26 und der Unterseite des Stempelschafts 22, und der Unterseite des Hohlrads 26 und der Oberseite der Werkzeugführung 23 vorgesehen.For supporting the ring gear 26 between the punch shaft 22 and the tool guide 23 are first rolling elements 27 in the form of balls, respectively in the raceways between the top of the ring gear 26 and the bottom of the punch shaft 22, and the underside of the ring gear 26 and the top of the tool guide 23 provided.

Zwischen dem Absatz des Hohlrads 26 und dem Übertragungselement 25 ist eine Mehrzahl von zweiten Wälzelementen 28 angeordnet. Die Wälzelemente 28 sind gleichmäßig über dem Absatz des Hohlrads 26 in einem Winkelabstand, der dem Winkel oder einem Vielfachen des Winkels entspricht, der sich aus der Verteilung der Erhöhungen und Vertiefungen ergibt, verteilt. Die untere Fläche des Absatzes ist eben. In der Zeichnungsebene unten dargestellt, stehen die zweiten Wälzelemente 28 mit der oberen Fläche des Absatzes des Hohlrads 26 in Kontakt.Between the shoulder of the ring gear 26 and the transmission element 25, a plurality of second rolling elements 28 is arranged. The rolling elements 28 are evenly distributed over the shoulder of the ring gear 26 at an angular distance corresponding to the angle or a multiple of the angle resulting from the distribution of the peaks and valleys. The lower surface of the heel is flat. Shown below in the drawing plane, the second rolling elements 28 are in contact with the upper surface of the shoulder of the ring gear 26.

Oberhalb des Übertragungselements 25 ist zentral in Richtung der Achse 20 innerhalb der zylindrischen Senkung des Stempelschafts 22, ein elastisches Element 29, hier in Form einer Druckfeder, vorgesehen. Diese Druckfeder 29 stützt sich am oberen Ende der zylindrischen Senkung ab und drängt das Übertragungselement 25 nach unten.Above the transmission element 25 is centrally in the direction of the axis 20 within the cylindrical countersinking of the punch shaft 22, an elastic member 29, here in the form of a compression spring, is provided. This compression spring 29 is supported at the upper end of the cylindrical countersink and urges the transmission element 25 down.

Zwischen der Unterseite des Absatzes des Werkzeugeinsatzes 24 und dem Absatz, der am unteren Ende der zylindrischen Senkung in der Werkzeugführung 23 ausgebildet ist, weist das Werkzeugteil 41 ein zweites elastisches Element 30, ebenfalls in Form einer Druckfeder, auf. Die Druckfeder 30 drängt in Fig. 2 den Werkzeugeinsatz 24 nach oben gegen den Steg 39 des Übertragungselements 25, so dass sich der Werkzeugeinsatz 24 in einer definierten Position befindet, indem er an dem Steg 39 anliegt. Die Feder 30 ist so ausgelegt, dass auch trotz dynamischer Kräfte, der Werkzeugeinsatz 24 immer an dem Steg 39 anliegt.Between the bottom of the shoulder of the tool bit 24 and the shoulder, which is formed at the lower end of the cylindrical countersink in the tool guide 23, the tool part 41, a second elastic element 30, also in the form of a compression spring on. The compression spring 30 urges in Fig. 2 the tool insert 24 up against the web 39 of the transmission element 25, so that the tool insert 24 is in a defined position by being applied to the web 39. The spring 30 is designed so that even with dynamic forces, the tool insert 24 always rests against the web 39.

Im Betrieb ist das Werkzeugteil 41 in die obere Werkzeugaufnahme 12 des Stößels 10 aufgenommen, und der Stößel 10 wird um einen vorbestimmten Hubweg verfahren, so dass ein vorbestimmter Abstand zwischen der Unterseite der Werkzeugführung 23 und der Oberseite des Blechs am Schnittpunkt der Achse 20 mit dem zu bearbeitenden Blech 9 eingenommen wird. Der Abstand ist so bestimmt, dass das untere Ende des Werkzeugeinsatzes 24 in eine definierte Tiefe in das Blech 9 eindringt. Die Werkzeugaufnahme 12 wird in eine Rotation mit einer Drehzahl von bis zu 600 min-1 versetzt, so dass auch das Werkzeugteil 41, mit Ausnahme des arretierten Hohlrads 26, mit dieser Drehzahl rotiert wird. Dadurch wird auf Grund der geringeren bewegten Massen eine Frequenz der oszillierenden Bewegung des Werkzeugeinsatzes 24 von ca. 6000 min-1 erreicht.In operation, the tool part 41 is received in the upper tool holder 12 of the plunger 10, and the plunger 10 is moved by a predetermined stroke so that a predetermined distance between the bottom of the tool guide 23 and the top of the sheet at the intersection of the axis 20 with the to be processed sheet 9 is taken. The distance is determined so that the lower end of the tool insert 24 penetrates into a defined depth in the sheet 9. The tool holder 12 is set in rotation at a speed of up to 600 min -1 , so that the tool part 41, with the exception of the locked ring gear 26, is rotated at this speed. As a result, a frequency of the oscillating movement of the tool insert 24 of about 6000 min -1 is achieved due to the lower moving masses.

Optional wird der Abstand zwischen dem Werkzeugteil 41 und dem Blech 9 bestimmt oder durch Erfassungsmittel erfasst, und der Stößel 10 so aus- oder eingefahren, dass der Abstand bei einem Verfahren des Blechs 9 zum Anfahren einer neuen Bearbeitungsposition konstant bleibt.Optionally, the distance between the tool part 41 and the sheet 9 is determined or detected by detecting means, and the plunger 10 is extended or retracted so that the distance remains constant in a process of the sheet 9 for starting a new machining position.

Das Hohlrad 26 wird durch die in Fig. 1 gezeigte Arretiervorrichtung 15 der Stanzmaschine 1 festgehalten. Dadurch entsteht zwischen dem Stempelschaft 22, der Werkzeugführung 23, und dem Übertragungselement 25, die drehfest miteinander verbunden sind, einerseits, und dem Hohlrad 26 andererseits, eine relative Drehbewegung. Die zweiten Wälzelemente 28 wälzen sich dabei, bedingt durch die Reibungskräfte zwischen den Oberflächen der Wälzelemente 28 und den von ihnen berührten Oberflächen, einerseits auf der Unterseite des sich nach unten erstreckenden Absatzes des Übertragungselements 25, und andererseits auf der oberen Kreisringfläche des Absatzes in dem Hohlrad 26 ab. Die zweiten Wälzelemente 28 werden durch das Übertragungselement 25, das durch die Feder 29 nach unten gedrängt wird, gegen die Kreisringfläche des Absatzes gedrückt. Da die Fläche des Absatzes nicht eben, sondern umlaufend wellenförmig ist, bewegen sich die Wälzkörper auf Grund des Abwälzens nicht nur kreisförmig um die Achse 20, sondern auch durch die Abwälzbewegung auf der wellenförmigen Fläche des Absatzes in Richtung der Achse 20 auf und ab. Diese Auf- und Abbewegung der Wälzkörper 28 wirkt auf das Übertragungselement 25, das dadurch ebenfalls eine Auf- und Abbewegung, also eine oszillierende Bewegung ausführt, und diese auf den Werkzeugeinsatz 24 überträgt. Das Übertragungselement 25 würde durch dynamische Trägheitskräfte den Kontakt zu Wälzelementen 28 verlieren, wodurch eine kontinuierliche Bewegung nicht sichergestellt wäre. Die Vorspannkraft der Feder 29 dient dabei der Erhaltung der Normalkraft zwischen den zweiten Wälzkörpern 28 und den davon berührten Flächen, um die Reibkraft zu erhalten. Durch die Festlegung der Anzahl der Erhöhungen und Vertiefungen auf der Fläche des Absatzes des Hohlrads 26 wird die Anzahl der Hübe des Werkzeugeinsatzes, bezogen auf die Drehzahl der Werkzeugaufnahme 12 festgelegt.The ring gear 26 is defined by the in Fig. 1 shown locking device 15 of the punching machine 1 held. This results between the stamp shaft 22, the tool guide 23, and the Transmission element 25 which are rotatably connected to each other, on the one hand, and the ring gear 26 on the other hand, a relative rotational movement. The second rolling elements 28 to roll, due to the frictional forces between the surfaces of the rolling elements 28 and the surfaces touched by them, on the one hand on the underside of the downwardly extending shoulder of the transmission element 25, and on the other hand on the upper annular surface of the shoulder in the ring gear 26 off. The second rolling elements 28 are pressed by the transmission element 25, which is urged by the spring 29 down against the annular surface of the paragraph. Since the surface of the shoulder is not flat, but circumferentially wavy, the rolling elements move due to the rolling not only circular about the axis 20, but also by the rolling movement on the undulating surface of the paragraph in the direction of the axis 20 up and down. This up and down movement of the rolling elements 28 acts on the transmission element 25, which thereby likewise carries out an up and down movement, ie an oscillating movement, and transfers this to the tool insert 24. The transmission element 25 would lose contact with rolling elements 28 due to dynamic inertial forces, which would not ensure continuous movement. The biasing force of the spring 29 serves to maintain the normal force between the second rolling elements 28 and the surfaces contacted thereby to obtain the frictional force. By determining the number of elevations and depressions on the surface of the shoulder of the ring gear 26, the number of strokes of the tool insert, based on the speed of the tool holder 12 is set.

Alternativ zu der Drehung der oberen Werkzeugaufnahme 12 und damit des Stempelschafts 22 und einer Arretierung des Hohlrads 26, ist in einer weiteren Ausführungsform die obere Werkzeugaufnahme 12 mit dem Stempelschaft 22 arretiert, und stattdessen wird das Hohlrad 26 durch einen zweiten oberen Drehantrieb rotiert. Der Effekt bezüglich der oszillierenden Bewegung ist entsprechend dem der ersten Ausführungsform.As an alternative to the rotation of the upper tool holder 12 and thus of the punch shaft 22 and a locking of the ring gear 26, in a further embodiment, the upper tool holder 12 is locked to the punch shaft 22, and instead Ring gear 26 is rotated by a second upper rotary drive. The effect on the oscillating movement is the same as that of the first embodiment.

In einer weiteren alternativen Ausführungsform der Stanzmaschine 1 wird der Stempelschaft 22 durch den ersten Drehantrieb in Rotation versetzt, und das Hohlrad 26 durch den zweiten oberen Drehantrieb in die Richtung, die der Drehung des Stempelschafts 22 und damit des Übertragungselements 25 entgegengesetzt ist, rotiert. Durch die unterschiedlichen Drehrichtungen entsteht eine Drehzahldifferenz zwischen dem Übertragungselement 25 und dem Hohlrad 26, die sich aus der Addition der Beträge der einzelnen Drehzahlen ergibt. Dadurch vergrößert sich die Drehzahl gegenüber jeweils einer der einzelnen Drehbewegungen, so dass insgesamt eine Erhöhung der Frequenz der oszillierenden Bewegung des Werkzeugeinsatzes 24 erreicht wird.In a further alternative embodiment of the punching machine 1, the punch shaft 22 is rotated by the first rotary drive and the ring gear 26 is rotated by the second upper rotary drive in the direction opposite to the rotation of the punch shaft 22 and thus the transfer element 25. Due to the different directions of rotation creates a speed difference between the transmission element 25 and the ring gear 26, which results from the addition of the amounts of individual speeds. As a result, the rotational speed increases relative to each one of the individual rotational movements, so that an overall increase in the frequency of the oscillating movement of the tool insert 24 is achieved.

Auf Grund der Anordnung der Druckfeder 29 so, dass die Feder 29 Kraft nach unten auf das Übertragungselement 25 aufbringt, und der Absatz des Hohlrads 26 die Bewegung des Übertragungselements nach oben bewirkt, wird die Kraft zum Eindrücken des Werkzeugeinsatzes 24 in das Blech 9 nur durch die Feder 29 aufgebracht. Dadurch ist die Kraft auf die Kraft der Feder begrenzt, was beim Auftreten von Kollisionen zwischen dem Werkzeugeinsatz 24 und dem Blech 9 oder anderen Hindernissen die Gefahr einer Beschädigung des Werkzeugs verringert, die Kraft zur Bearbeitung des Blechs 9 aber ebenfalls begrenzt.Due to the arrangement of the compression spring 29 so that the spring 29 applies force down on the transmission element 25, and the shoulder of the ring gear 26 causes the movement of the transmission element up, the force for pressing the tool bit 24 in the sheet 9 only the spring 29 applied. As a result, the force is limited to the force of the spring, which reduces the risk of damage to the tool when collisions occur between the tool insert 24 and the sheet metal 9 or other obstacles, but also limits the force for machining the metal sheet 9.

Das nicht gezeigte Werkzeugunterteil weist eine ebene, horizontale Fläche auf.The lower tool part, not shown, has a flat, horizontal surface.

In einer alternativen Ausführungsform ist das Werkzeugunterteil mit einer beweglichen Rolle oder einer beweglichen Kugel ausgebildet, auf der das Blech aufliegt, um ein Verkratzen auf der Unterseite des Blechs 9 zu verhindern.In an alternative embodiment, the tool lower part is formed with a movable roller or a movable ball, on which the sheet rests to prevent scratching on the underside of the sheet 9.

In einer weiteren alternativen Ausführungsform ist das Werkzeugteil so ausgeführt, dass es in die untere Werkzeugaufnahme 13 (Fig. 1) aufgenommen werden kann und als Werkzeugunterteil eingesetzt wird. Das Werkzeug wird dann über die untere Werkzeugaufnahme 13 und deren Drehantrieb 16 in Rotation versetzt. Das Werkzeugoberteil weist hier dann folglich eine ebene, horizontale Fläche auf.In a further alternative embodiment, the tool part is designed such that it can be inserted into the lower tool holder 13 (FIG. Fig. 1 ) and can be used as a tool lower part. The tool is then placed on the lower tool holder 13 and the rotary drive 16 in rotation. The tool shell then has here then a flat, horizontal surface.

In Fig. 3 ist eine zweite Ausführungsform eines zweiten Werkzeugteils 21 mit oszillierendem Werkzeugeinsatz gezeigt. Der Aufbau und die Funktion entsprechen im Wesentlichen denen der Ausführungsform in Fig. 2, wobei die Vorspannkraft der Feder 29 in entgegen gesetzter Richtung wirkt. Daher weist dieses Werkzeugteil 21 das Element 26 als ein anders geformtes zweites Hohlrad 31, und ein anders geformtes zweites Übertragungselement 32 auf. Da die Wirkungsweise prinzipiell die gleiche ist, werden gleiche Teile und Wirkungsweisen nicht erneut beschrieben.In Fig. 3 a second embodiment of a second tool part 21 is shown with oscillating tool insert. The construction and the function are substantially similar to those of the embodiment in FIG Fig. 2 , wherein the biasing force of the spring 29 acts in the opposite direction. Therefore, this tool part 21 has the element 26 as a differently shaped second ring gear 31, and a differently shaped second transmission element 32. Since the mode of action is basically the same, the same parts and modes of action are not described again.

Das zweite Hohlrad 31 weist in diesem Fall den Absatz in seinem oberen Bereich auf, und die Fläche des Absatzes, die die Erhöhungen und Vertiefungen aufweist, ist nach unten gerichtet.The second ring gear 31 in this case has the shoulder in its upper portion, and the surface of the shoulder having the ridges and valleys is directed downwards.

Das zweite Übertragungselement 32 ist nicht wie in der ersten Ausführungsform im Wesentlichen als Scheibe, sondern topfförmig, wobei der Top in Fig. 3 auf dem Kopf steht, ausgeführt, wobei in Fig. 3 das zweite Übertragungselement 32 so angeordnet ist, dass sich der Topfboden am oberen Ende des zweiten Übertragungselements 25 befindet. In der Fläche des Topfbodens sind in dieser Ausführungsform die gleichen kreissegmentartigen Aussparungen eingebracht wie in dem Übertragungselement 25 in Fig. 2, auch wenn sie in Fig. 3 nicht zu sehen sind. Der Topfboden weist, bedingt durch die Aussparungen, ebenfalls einen mittig liegenden Steg auf, der in Fig. 3 als Schnitt gezeigt ist, wodurch eine formschlüssige Verbindung des Stempelschafts 22 und der Werkzeugführung 23 mit dem zweiten Übertragungselement 32 erzeugt wird. Ein äußerer umlaufender Rand am unteren Ende des als Topf ausgeführten Übertragungselements 32 weist an seiner Oberseite eine Lauffläche für die zweiten Wälzkörper 28 auf.The second transmission element 32 is not as in the first embodiment substantially as a disc, but cup-shaped, wherein the top in Fig. 3 upside down, executed, with in Fig. 3 the second transmission element 32 is arranged so that the pot bottom is located at the upper end of the second transmission element 25. In the surface of the pot bottom, the same circular segment-like recesses are introduced in this embodiment as in the transfer element 25 in Fig. 2 even if they are in Fig. 3 not to be seen. The bottom of the pot has, due to the recesses, also a central web on which Fig. 3 is shown as a section, whereby a positive connection of the punch shaft 22 and the tool guide 23 is generated with the second transmission element 32. An outer peripheral edge at the lower end of the executed as a pot transmission element 32 has on its upper side a tread for the second rolling elements 28.

Zwischen dem inneren unteren Absatz der zylindrischen Senkung in der Werkzeugführung 23 und dem Absatz in dem Werkzeugeinsatz 24 ist in diesem Fall das erste elastische Element 29, die Feder, vorgesehen. Die Feder 29 drängt den Werkzeugeinsatz 24 nach oben, so dass er an dem zweiten Übertragungselement 32 anliegt. Gleichzeitig wird durch die Kraft der Feder 29 das Übertragungselement 32 nach oben gemeinsam mit den Wälzkörpern 28 gegen das zweite Hohlrad 31 gedrängt.Between the inner lower shoulder of the cylindrical countersink in the tool guide 23 and the shoulder in the tool insert 24, the first elastic element 29, the spring, is provided in this case. The spring 29 urges the tool insert 24 upwards, so that it bears against the second transmission element 32. At the same time, the transmission element 32 is urged upwards together with the rolling elements 28 against the second ring gear 31 by the force of the spring 29.

Im Betrieb werden die Wälzkörper 28 zu einem Reibschluss mit der oberen Fläche des umlaufenden Rands des zweiten Übertragungselements 32 und der unteren wellenförmigen Fläche des Absatzes des zweiten Hohlrads 31 veranlasst.In operation, the rolling elements 28 are caused to frictionally engage the upper surface of the peripheral edge of the second transmission element 32 and the lower undulating surface of the shoulder of the second ring gear 31.

Die Kraft, die in der in Fig. 3 gezeigten Ausführungsform auf das Blech 9 ausgeübt werden kann, entspricht, durch den formschlüssigen Kraftfluss von dem Stößel 10 bis zu dem Werkzeugeinsatz 24, derjenigen Kraft, die den Stößel 10 nach unten bewegt und ist somit größer, als die von der Feder 29 in Fig. 2 aufgebrachte Kraft.The force in the in Fig. 3 As shown in the embodiment shown can be applied to the sheet 9 corresponds, by the positive flow of force from the plunger 10 to the tool bit 24, the force that moves the plunger 10 downwards and is thus greater than that of the spring 29 in Fig. 2 applied force.

Die grundsätzliche Funktion ist gleich der in Fig. 2 gezeigten Ausführungsform, und weitere Ausführungsformen können analog zu der in Fig. 2 gezeigten Ausführungsform gebildet werden.The basic function is the same as in Fig. 2 embodiment shown, and other embodiments may be analogous to those in Fig. 2 embodiment shown are formed.

Zum Signieren des Blechs 9 oder anderer Materialien auf Stanzmaschinen 1 wird der Werkzeugeinsatz 24 mit einem konischen unteren Ende, das eine Spitze aufweist, verwendet. Durch die Verwendung von Werkzeugeinsätzen 24 mit anders geformten unteren Enden, z.B. einem Ende, das zumindest in einer Ebene einen Radius aufweist und damit abgerundet ist, können, insbesondere bei der Verwendung des Werkzeugs gemäß Fig. 3, durch die größere aufbringbare Kraft, Sicken in das Blech 9 eingebracht werden, oder weitere Bearbeitungen an dem Blech 9 durchgeführt werden.For signing the sheet 9 or other materials on punching machines 1, the tool bit 24 is used with a conical lower end having a point. By using tool inserts 24 with differently shaped lower ends, for example an end which has a radius at least in one plane and is rounded off, can, in particular when using the tool according to Fig. 3 , are introduced by the larger applicable force, beads in the sheet 9, or further processing on the sheet 9 are performed.

Der Werkzeugeinsatz ist aus einem harten Werkzeugstahl oder aus Hartmetall hergestellt.The tool insert is made of a hard tool steel or carbide.

Der Antriebsmechanismus kann in alternativen Ausführungsformen auch durch einen elektrischen Antrieb angetrieben werden, der in das Werkzeug integriert ist. Hierbei wird in einem Fall das mechanische Prinzip der des Antriebsmechanismus beibehalten und eine rotierende Antriebsbewegung des elektrischen Antriebs in eine lineare oszillierende Bewegung umgesetzt. Der Antrieb ist hier als ein Elektromotor, dessen einzelne Baugruppen auch integral mit den Bauteilen des Werkzeugs ausgebildet sein können, ausgebildet.The drive mechanism may also be driven in alternative embodiments by an electric drive integrated with the tool. In this case, in one case, the mechanical principle of the drive mechanism is maintained and a rotary drive movement of the electric drive is converted into a linear oscillating movement. The drive is designed here as an electric motor, whose individual components can also be formed integrally with the components of the tool.

In einem anderen Fall besteht die Möglichkeit, den Antrieb durch in das Werkzeug integrierte Magneten auszuführen, die durch entsprechende Positionierung und Ansteuerung die oszillierende Bewegung des Werkzeugeinsatzes 24 anregen.In another case, it is possible to carry out the drive by means of magnets integrated in the tool, which excite the oscillating movement of the tool insert 24 by appropriate positioning and activation.

Die Ansteuerung und Versorgung der elektrischen Antriebe in Form des Elektromotors oder der Magneten erfolgt über geeignete Übertragungsmittel durch die Steuerungsvorrichtung der Stanzmaschine 1.The control and supply of the electric drives in the form of the electric motor or the magnet via suitable transmission means by the control device of the punching machine first

Claims (14)

  1. Tool for a stamping machine (1) having a tool part (21, 41) to be received in a tool mount (12, 13) of the stamping machine (1) and having a tool insert (24) mounted in a movable manner in the tool part (21, 41) in the direction of one axis (20), whereby the tool part (21, 41) comprises a drive mechanism designed in such a manner that it can move the tool insert (24) in an oscillating fashion, and the drive mechanism comprises an element (26, 31) that is rotationally mounted around the axis (20), characterised in that the drive mechanism comprises a mechanical device that is so constructed that it can convert a rotary movement of the element (26, 31) around the axis (20) into an oscillating movement of the tool insert.
  2. Tool in accordance with Claim 1 above, characterised in that the said mechanical device of at least one of the elements (26, 31) with an active surface in the form of a shaft comprises a transmission element (25, 32) for the transmission of the oscillating movement to the tool insert (24), and at least one pre-stressing element (29) that forces the transmission element (25, 32) in the direction of the active surface having the form of a shaft.
  3. Tool in accordance with Claim 1 or 2 above, characterised in that a number of roller elements (28) are arranged between the active surface having the form of a shaft and the transmission element (25, 32).
  4. Tool in accordance with any of the above claims, characterised in that the tool comprises an integrated electrical drive system and that this integrated electrical drive system is connected in a driving manner to the drive mechanism.
  5. Tool in accordance with Claim 1 above, characterised in that the drive mechanism comprises electromagnets and a means of driving.
  6. Tool in accordance with any of the above claims, characterised in that the tool insert (24) is designed in the form of a pin with a lower end for the working of a workpiece (9).
  7. Tool in accordance with Claim 6 above, characterised in that this lower end is tapered.
  8. Stamping machine with a tool in accordance with any of the Clams 1 to 7 above, characterised in that the stamping machine (1) comprises means of driving the drive mechanism of the tool.
  9. Stamping machine in accordance with Claim 8 above, characterised in that the stamping machine (1) comprises a drive mechanism (14) to drive the tool part (21, 41).
  10. Stamping machine in accordance with either Claim 8 or Claim 9 above, characterised in that the stamping machine (1) comprises a locking device (15) for locking the inner geared wheel (26).
  11. Stamping machine in accordance with any of the above Claims 8 to 10, characterised in that the stamping machine (1) comprises a drive device to rotate the inner geared wheel (26).
  12. Stamping device in accordance with any of the above Claims 8 to 11, characterised in that the stamping device (1) comprises a tool mount (12), which is able to adopt a pre-determined stroke position when operated by a control device.
  13. Stamping machine in accordance with Claim 12 above, characterised in that the control device is capable of adjusting the pre-determined stroke position in such a way that the distance between the workpiece (9) to be worked and the tool piece (21, 41) is constant when working with the workpiece (9).
  14. Stamping machine in accordance with any of the above Claims 8 to 12, characterised in that the stamping machine (1) supplies the electrical drive of the tool with energy in accordance with one of the above claims 7 or 8.
EP20080022324 2008-12-22 2008-12-22 Tool for a stamping machine with an oscillating tool insert Active EP2198989B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AT08022324T ATE530269T1 (en) 2008-12-22 2008-12-22 TOOL FOR A PUNCHING MACHINE WITH AN OSCILLATING TOOL INSERT
EP20080022324 EP2198989B1 (en) 2008-12-22 2008-12-22 Tool for a stamping machine with an oscillating tool insert
JP2011542693A JP5642089B2 (en) 2008-12-22 2009-12-08 Tool for punching machines with reciprocating tool inserts
PCT/EP2009/008767 WO2010072326A1 (en) 2008-12-22 2009-12-08 Tool for a punch press having an oscillating tool insert
CN200980152124.9A CN102264487B (en) 2008-12-22 2009-12-08 Tool for a punch press having an oscillating tool insert and the punch press
US13/164,304 US8839654B2 (en) 2008-12-22 2011-06-20 Punch press oscillating tool insert

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20080022324 EP2198989B1 (en) 2008-12-22 2008-12-22 Tool for a stamping machine with an oscillating tool insert

Publications (2)

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EP2198989A1 EP2198989A1 (en) 2010-06-23
EP2198989B1 true EP2198989B1 (en) 2011-10-26

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EP20080022324 Active EP2198989B1 (en) 2008-12-22 2008-12-22 Tool for a stamping machine with an oscillating tool insert

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EP (1) EP2198989B1 (en)
JP (1) JP5642089B2 (en)
CN (1) CN102264487B (en)
AT (1) ATE530269T1 (en)
WO (1) WO2010072326A1 (en)

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DE102014209393B4 (en) 2014-05-19 2016-02-04 Trumpf Werkzeugmaschinen Gmbh + Co. Kg Method for machining a plate-like workpiece, in particular a metal sheet
US10105742B2 (en) 2014-12-09 2018-10-23 Honda Motor Co., Ltd. Draw press die assembly and method of using the same
WO2017165541A1 (en) * 2016-03-22 2017-09-28 The Penn State Research Foundation New incremental forming tools and method
JP6827268B2 (en) * 2016-03-22 2021-02-10 雅義 秋山 Spire type metal machine parts, manufacturing method of spire type metal machine parts
CN107756659A (en) * 2017-11-01 2018-03-06 夏心杰 Dither cutter
CN109466194A (en) * 2018-11-15 2019-03-15 南京邮电大学 A kind of metal works impression stamp device

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JPS525024B2 (en) * 1971-12-20 1977-02-09
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DE8526360U1 (en) * 1985-09-14 1985-12-19 Trumpf GmbH & Co, 7257 Ditzingen Punching machine
JP3130748B2 (en) * 1994-12-28 2001-01-31 株式会社日平トヤマ Engraving tool and device therefor
JP3681433B2 (en) * 1995-04-11 2005-08-10 株式会社アマダ Punch press and upper mold
US5682657A (en) * 1996-03-13 1997-11-04 Amada Mfg America Inc. Punch press equipped with marking apparatus and method for marking by the punch press
JP2000296483A (en) * 1999-04-15 2000-10-24 Yamada Mach Tool Kk Marking tool
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US8839654B2 (en) 2014-09-23
JP5642089B2 (en) 2014-12-17
JP2012513307A (en) 2012-06-14
EP2198989A1 (en) 2010-06-23
ATE530269T1 (en) 2011-11-15
US20110308294A1 (en) 2011-12-22
WO2010072326A1 (en) 2010-07-01
CN102264487B (en) 2014-05-07
CN102264487A (en) 2011-11-30

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