EP2196270B1 - Tooling system with interchangeable tooling inserts for punching machines - Google Patents
Tooling system with interchangeable tooling inserts for punching machines Download PDFInfo
- Publication number
- EP2196270B1 EP2196270B1 EP20080021443 EP08021443A EP2196270B1 EP 2196270 B1 EP2196270 B1 EP 2196270B1 EP 20080021443 EP20080021443 EP 20080021443 EP 08021443 A EP08021443 A EP 08021443A EP 2196270 B1 EP2196270 B1 EP 2196270B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- central axis
- stamp
- adapter
- tool
- die
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
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Classifications
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- 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
- B26F1/44—Cutters therefor; Dies therefor
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- 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
- B21D28/12—Punching using rotatable carriers
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- 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
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
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- 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
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
- B21D28/343—Draw punches
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- 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
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
- B21D28/346—Perforating tools; Die holders length adjustable perforating tools
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/02—Die constructions enabling assembly of the die parts in different ways
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- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/04—Movable or exchangeable mountings for tools
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- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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- 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
- B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
- B26F1/14—Punching tools; Punching dies
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- 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
- Y10T83/8748—Tool displaceable to inactive position [e.g., for work loading]
-
- 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
- Y10T83/9411—Cutting couple type
- Y10T83/9416—To punch and cut punched article
-
- 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
- Y10T83/9411—Cutting couple type
- Y10T83/9423—Punching tool
-
- 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
- Y10T83/9411—Cutting couple type
- Y10T83/9423—Punching tool
- Y10T83/9425—Tool pair
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/97—Miscellaneous
Definitions
- the invention relates to a stamp adapter for a tool system for a punching machine according to the features of the preamble of patent claim 1.
- Such a stamp adapter is eg in the JP-A-02142626 disclosed.
- punch inserts in different shapes or sizes with a punch shaft.
- Patent Abstracts of Japan JP 02 142626A shows a device for punching distorted holes with a punch holder is received in a receptacle.
- a punch holder In the punch holder identical receptacles for receiving stamps are provided, which consist of a through hole and a countersink.
- the outer walls of the counterbores are machined from the outside so that the outer walls are not continuous, but have a cutout, in which a fitting can be inserted, so that the imported stamp are secured against rotation.
- punching tools are used in which punching or machining inserts are not included in the central axis of the tool, and in which by the rotation of the tool shell to the tool base, the assignment of a die of a certain size to the punch insert in the tool shell can be changed ,
- the feasible with the tool set operation can thus be performed at different sheet thicknesses, without retrofitting the tool.
- a so-called low-arm punching is possible.
- the low-arm punching results in the problem that, although the same eccentric punch can be used for producing a specific punch-out for different sheet thicknesses, but at a wear of the punch and stamp in different contours or sizes, each of the corresponding tool shells must be made consuming with off-center punches.
- the object is achieved by means of a stamp adapter with the features according to claim 1, a tool upper part with the features according to claim 8, and a tool system with the features according to claim 11.
- Fig. 1 is a stamp adapter 1 shown in a perspective view.
- the stamp adapter 1 is formed as a substantially disk-shaped circular body having a first central axis 2.
- the stamp adapter 1 in the center on a receiving device 3 for receiving in a stamp shank shown later.
- the receiving device 3 has a round cylindrical elevation whose axis corresponds to the first center axis 2. At the transition from the circumferential surface in the axial direction to the end face radially to the central axis 2, a circumferential chamfer is provided.
- the receiving device 3 is hollow by a bore and has a thread 4 on the circumference of the bore. Furthermore, extending on the upper side of the disc-shaped body to the central axis 2 radial, substantially cuboidal rod-like increase. 5
- the disc-shaped body is provided with a punch holder with a first expression for receiving tool inserts 6 from a first tool system.
- the first punch holder 6 has a circular cylindrical through-hole 7 with a second center axis 8 at a distance a from the first center axis 2.
- the disc-shaped body Around the second central axis 8, the disc-shaped body has a cylindrical countersink 9 from its upper side.
- the counterbore 9 has a sector with an inner circumferential surface 10 which is circular with respect to the second central axis 8, and a sector in which the inner surface 11 is parallel to a tangent to the throughbore 7. Of the Distance between the tangential inner surface 11 and the second central axis 8 is greater than the radius of the through hole 7 and smaller than the radius of the circular sector whose reduction. 9
- the disc-shaped body is provided with a plurality of first punch receivers 6, all of which have the same distance a between the first center axis 2 and the second center axis 8.
- the disk-shaped body is provided with a punch holder 12 with a second expression.
- the punch holder 12 has a circular cylindrical through-bore 13 with a third center axis 14 at a distance b from the first center axis 2.
- the diameter of the through hole 13 is different from the diameter of the through hole 7 of the punch holder with the first embodiment.
- the disk-shaped body has a cylindrical countersink 15 around its third center axis 14 from its upper side.
- the counterbore 15 has a sector with an inner peripheral surface 16 circular relative to the third center axis 14, and a sector in which the inner surface 17 is parallel to a tangent to the throughbore 13.
- the distance between the tangential inner surface 17 and the third center axis 14 is greater than the radius of the through-hole 13 and smaller than the radius of the circular sector of the countersink 15.
- the disc-shaped body is provided with either no or more second punch holders 12, which, if present, all have the same distance b between the first center axis 2 and the third center axis 14.
- the execution of the first and / or second punch recordings in other embodiments with a reduction with another contour which is not rotationally symmetrical, possible.
- the contour is not necessarily cylindrical, but may also be conical.
- at least one or more recesses may be provided on the circumference of the bore or the countersink, which are not rotationally symmetrical to its central axis.
- a through hole 37 is provided with a cylindrical counterbore for fixing tool inserts from a second tool system in the disk-shaped body.
- Fig. 2 is a perspective view of a section through a punch shaft 18 is shown.
- the punch shaft 18 has a central axis, which in an in Fig. 3 shown assembled state identical to the central axis 2 of the punch adapter 1.
- the stamp shaft 18 In its upper region, the stamp shaft 18 has a pin 19 in a form suitable for accommodating the stamp shaft in an upper tool holder of a punching machine.
- the stamp shank 18 has a disk-shaped region 20.
- the disc-shaped portion 20 has an outer contour with which a later-described upper tool part can be received in a tool cartridge. Starting from its underside, the disk-shaped region 20 has a round cylindrical countersink 21 with a certain depth.
- a plurality of, here three, radially extending cylindrical recesses 22 are provided on the outer circumference of the countersink 21 . Furthermore, in the direction of the axis 2 above the counterbore 21, a further cylindrical countersink 23, and a through bore 24 is provided with an overhead cylindrical counterbore 25.
- the recesses 22 serve for a defined orientation of standard tool inserts to the stamp shank 18.
- Fig. 3 is a sectional view of a tool upper part 38 with the punch shaft 18, the punch adapter 1 and a tool insert 26, shown in the installed position.
- the tool insert 26 has at the lower end on a cylindrical portion 27 with a square contour here.
- the contour of the section 27 is dependent on the contour of a cutout in a plate-shaped body to be produced with this tool insert.
- This is followed by another cylindrical section 28 with a circular shape.
- the diameter of the cylindrical portion 28 is matched with the through hole 13 that an axial sliding bearing is present.
- this has a further cylindrical portion 29 with a contour which is complementary to the contour of the countersink 15. Due to the tangential surfaces 17 ( Fig. 1 ) in the contour of the countersink 15 and the complementary contour of the portion 29, a rotation of the tool insert 26 is prevented.
- the turning of the tool insert can, in the case of a countersink, have a different, not rotationally symmetrical, contour than the countersink 15 in Fig. 1 through a portion of the tool insert be prevented, which is designed to complement the contour of this reduction.
- the section must at least be designed such that a sector of the section comes into engagement with the contour of the countersink so that it is not possible to turn the tool insert.
- a tool insert can alternatively be attached by screwing by means of a second screw, which is provided through the bore 37, which is provided with a countersink.
- the stamp adapter 1 protrudes with its receiving device 3 into the countersink 23 of the stamp shaft 18, wherein the receiving device 3 is tuned with the countersink 23 so that the countersink 23 represents a centering in the radial direction for the cylindrical elevation of the receiving device.
- a screw 30 is provided for fixing the stamp adapter 1 in the stamp shaft 18.
- the screw 30 is supported in the countersink 25, protrudes through the through hole 24, and is screwed to the thread 4 of the punch adapter.
- the upper side of the disk-shaped region of the stamp adapter 1 bears against the underside of the disk-shaped region 20 of the stamp shaft 18.
- the stamp adapter 1 is oriented toward the stamp shaft 18 in such a way that the substantially rectangular rod-shaped elevation 5 (FIG. Fig. 1 ) in one of the three recesses 22 (FIG. Fig. 2 ), whereby the orientation of the punch adapter 1 is fixed to the punch shaft 18, and the increase 5 and one of the three recesses 22 serve to prevent rotation.
- the anti-twist device between the punch shaft 18 and the punch adapter 1 can also be performed with a different geometry.
- the top of the tool bit 26 is located with its top on the underside of the punch shaft 18, and is thus immovably provided between the bottom of the punch shaft 18 and the counterbore 15 in its axial direction relative thereto.
- tool inserts 26, which can be produced without much effort, in two different sizes by means of the punch adapter 1 off-center be incorporated into a known stamp shank 18.
- FIG. 5 illustrates a die adapter 31.
- the die adapter 31 is disposed in a tool base, shown later, which is received in a rotatable lower tool holder of a punching machine.
- the die adapter 31 has a fourth central axis 32.
- female mounts 33 having a first shape with a fifth central axis 35 each at a distance c from the central axis 32, and female mounts 34 with a second shape with a sixth central axis 36, wherein the second expression is designed differently than the first expression , in each case at a distance d from the central axis 32, is provided.
- the number of Matrizenagen 33, 34 is variable depending on the respective embodiment, wherein at least two Matrizenagen 33, 34 are provided in a die adapter 31.
- Fig. 5 shows a schematic representation of a tool set 39 for low-arm punching.
- the tool set 39 has the tool upper part 38.
- a tool insert 26 here a round pin with a certain diameter provided.
- the die adapter 31 is arranged in a tool lower part 40.
- five different dies 41 are provided here at the distance c from the central axis 2.
- the diameter of the dies 41 is larger than the diameter of the tool bit 26 in the upper die 38, respectively, to form a cutting gap between the bit 26 and the dies 41.
- the required kerf is 10% of the sheet thickness, so that the diameters of the dies 41 are mutually different, e.g. differ by a few tenths of a millimeter in order to form the required kerf for the sheet to be machined with the respective thickness.
- the selection of which cutting gap is used is made by relative rotation of the tool top 38 to the tool bottom 40 with the die adapter.
- the tool upper part 38 if necessary, prepared in preparation for use in the punching machine, ie the connection of the punch shaft 18 and the punch adapter 1 is simple, here only by loosening and unscrewing the screw 30, separated, and the upper tool part is disassembled by pulling it into its two housing parts, the stamp shaft 18 and the stamp adapter 1.
- the tool insert 26 to be replaced is then replaced from the punch holder 10, 12 by the existing tool insert 26 pushed out and another, required tool insert is inserted into the appropriate punch holder 10, 12.
- the adapter 1 is then inserted back into the stamp shaft 18 and fastened with the screw 30. Subsequently, the appropriate matrices are introduced into the die holders 33, 34 of the die adapter 31.
- the upper tool part 19 and the lower tool part 40 are then placed in a toolbox and ready for use in the punching machine.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Drilling Tools (AREA)
Description
Die Erfindung betrifft einen Stempeladapter für ein Werkzeugsystem für eine Stanzmaschine gemäß den Merkmalen des Oberbegriffs des Patentanspruchs 1.The invention relates to a stamp adapter for a tool system for a punching machine according to the features of the preamble of patent claim 1.
Solch einen Stempeladapter ist z.B. in der
Für die prozesssichere und qualitativ hochwertige Bearbeitung von plattenförmigen Bauteilen, insbesondere Blechen, auf Stanzmaschinen sind scharfe Stanzwerkzeuge erforderlich. Bei stumpfen Werkzeugen verstärkt sich die Gratbildung und die benötigte Schneidkraft steigt. Aus diesem Grund ist es erforderlich, stumpfe Stanzstempel nachzuschleifen. Um die Längenänderung der nachgeschliffenen Stanzstempel auszugleichen, gibt es ein System aus mehrteiligen Stanzwerkzeugen, die aus einem Stempelschaft, der für mehrere verschiedene Stanzstempel geeignet ist, einem jeweiligen zentral in dem Stempelschaft angeordneten Stanzstempel, der nachgeschliffen wird, und Einlegescheiben bestehen. Die Einlegescheiben in verschiedenen Dicken werden gegebenenfalls in der erforderlichen Anzahl eingelegt, um die Längenänderung des Stanzstempels auf Grund des Nachschleifens zu kompensieren, womit eine Nachschleiflänge geschaffen wird.For the process-reliable and high-quality processing of plate-shaped components, in particular sheet metal, on punching machines, sharp punching tools are required. With blunt tools burr formation increases and the required cutting force increases. For this reason, it is necessary to regrind blunt punches. To compensate for the change in length of the reground punch, there is a system of multi-part punching tools consisting of a punch shaft which is suitable for several different punches, a respective centrally located in the punch shaft punch, which is reground, and insert discs. The inserts in different thicknesses are optionally inserted in the required number to compensate for the change in length of the punch due to the regrinding, whereby a regrinding length is created.
Durch diese funktionale Unterteilung des Werkzeugs kann bei einem Verbrauch dieser Nachschleiflänge, d.h. wenn die Länge des Stempeleinsatzes durch das Nachschleifen so reduziert wurde, dass dieses nicht mehr durch Einsetzen von Scheiben kompensiert werden kann, nur der Stempeleinsatz ausgetauscht werden, ohne den Stempelschaft ersetzen zu müssen.By this functional subdivision of the tool can at a consumption of this regrinding length, ie if the length of the punch insert was reduced by regrinding so that it can not be compensated by inserting discs, only the punch insert can be replaced without having to replace the punch shaft ,
Weiterhin besteht auch grundsätzlich die Möglichkeit, Stempeleinsätze in verschiedenen Formen oder Größen mit einem Stempelschaft zu verwenden.Furthermore, it is also possible in principle to use punch inserts in different shapes or sizes with a punch shaft.
Durch die Verwendung dieses Systems wird eine wirtschaftliche Nutzung von Stanzwerkzeugen ermöglicht.By using this system, an economical use of stamping tools is made possible.
Patent Abstracts of Japan
Für die wirtschaftliche Bearbeitung von Blechen auf Stanzmaschinen ist eine große Anzahl von Werkzeugsätzen erforderlich, da Ausstanzungen möglichst mit einem Stanzhub angefertigt werden sollten und daher für die verschiedenen Konturen jeweils ein eigener Stempel erforderlich ist. Für die Bearbeitung von Blechen in verschiedenen Dicken sind dann zu jedem Stempel, abhängig von der Blechdicke, Matrizen in verschiedenen Größen erforderlich. Daraus ergibt sich ein Aufwand zum Vorrüsten, d.h. der Zusammenstellung der Werkzeugsätze, und zum Rüsten der Stanzmaschine, d.h. zur Einsetzen der Werkzeugsätze in das Werkzeugmagazin der Stanzmaschine, sowie erhöhte Anforderungen an die Größe der Werkzeugmagazine.For the economic processing of sheets on punching machines, a large number of tool sets is required because punching should be made as possible with a punching stroke and therefore for the different contours each own stamp is required. For the processing of sheets in different thicknesses, dies of different sizes are required for each stamp, depending on the sheet thickness. This results in an effort for Vorrüsten, ie the composition of the tool sets, and for equipping the punching machine, ie for inserting the tool sets in the tool magazine of the punching machine, as well as increased demands on the size of the tool magazines.
Aus diesem Grund werden Stanzwerkzeuge verwendet, in denen Stanz- oder Bearbeitungseinsätze nicht in der Mittelachse des Werkzeugs aufgenommen sind, und bei denen durch das Verdrehen des Werkzeugoberteils zu dem Werkzeugunterteil die Zuordnung einer Matrize in einer bestimmten Größe zu dem Stanzeinsatz in dem Werkzeugoberteil geändert werden kann. Der mit dem Werkzeugsatz durchführbare Arbeitsgang kann somit bei verschiedenen Blechstärken ausgeführt werden, ohne das Werkzeug neu zu rüsten. Damit ist ein so genanntes rüstarmes Stanzen möglich.For this reason, punching tools are used in which punching or machining inserts are not included in the central axis of the tool, and in which by the rotation of the tool shell to the tool base, the assignment of a die of a certain size to the punch insert in the tool shell can be changed , The feasible with the tool set operation can thus be performed at different sheet thicknesses, without retrofitting the tool. Thus, a so-called low-arm punching is possible.
Somit ergibt sich beim rüstarmen Stanzen das Problem, dass zwar der selbe außermittige Stempel zur Herstellung einer bestimmten Ausstanzung für verschiedene Blechdicken verwendet werden kann, aber bei einem Verschleiß des Stempels und für Stempel in unterschiedlichen Konturen oder Größen, jeweils die entsprechenden Werkzeugoberteile mit außermittigen Stempeln aufwändig hergestellt werden müssen.Thus, the low-arm punching results in the problem that, although the same eccentric punch can be used for producing a specific punch-out for different sheet thicknesses, but at a wear of the punch and stamp in different contours or sizes, each of the corresponding tool shells must be made consuming with off-center punches.
Daraus ergibt sich die Aufgabe, ein Werkzeugsystem zu schaffen, das einen wirtschaftlichen Einsatz beim rüstarmen Stanzen ermöglicht.This results in the task of creating a tooling system that allows economical use in low-arm punching.
Die Aufgabe wird mit Hilfe eines Stempeladapters mit den Merkmalen gemäß Anspruch 1, eines Werkzeugoberteils mit den Merkmalen gemäß Anspruch 8, und eines Werkzeugsystems mit den Merkmalen gemäß Anspruch 11 gelöst.The object is achieved by means of a stamp adapter with the features according to claim 1, a tool upper part with the features according to
Der Erfindung wird mit Hilfe der beigefügten Zeichnungen erklärt. Weiterentwicklungen der Erfindung sind in den jeweiligen abhängigen Ansprüchen beschrieben.The invention will be explained with the aid of the attached drawings. Further developments of the invention are described in the respective dependent claims.
Die beanspruchten Gegenstände bieten die Möglichkeit, durch das Ausbilden als geeigneten Adapter und als Werkzeugoberteil, und die Verwendung in einem System, auch bereits vorhandene Bearbeitungseinsätze flexibel zu verwenden und auszutauschen.
- Fig. 1
- zeigt eine perspektivische Darstellung eines Stempeladapters;
- Fig. 2
- zeigt einen Stempelschaft in einer perspektivischen Darstellung;
- Fig. 3
- ist eine Schnittdarstellung eines Werkzeugoberteils mit einem Stempelschaft, einem Stempeladapter und einem Werkzeugeinsatz;
- Fig. 4
- stellt einen Matrizenadapter dar;
- Fig. 5
- zeigt die prinzipielle Darstellung eines Werkzeugsatzes zum rüstarmen Stanzen.
- Fig. 1
- shows a perspective view of a stamp adapter;
- Fig. 2
- shows a stamp shaft in a perspective view;
- Fig. 3
- is a sectional view of a tool shell with a punch shaft, a punch adapter and a tool insert;
- Fig. 4
- represents a die adapter;
- Fig. 5
- shows the basic representation of a tool set for low-arm punching.
In
Die Aufnahmeeinrichtung 3 weist eine runde zylindrische Erhöhung auf, deren Achse der ersten Mittelachse 2 entspricht. Am Übergang von der Umfangsfläche in Achsrichtung zur Stirnfläche radial zur Mittelachse 2 ist eine umlaufende Fase vorgesehen. Die Aufnahmeeinrichtung 3 ist durch eine Bohrung hohl ausgebildet und weist ein Gewinde 4 am Umfang der Bohrung auf. Weiterhin erstreckt sich auf der Oberseite des scheibenförmigen Körpers eine zur Mittelachse 2 radiale, im Wesentlichen quaderförmige stabartige Erhöhung 5.The
Der scheibenförmige Körper ist mit einer Stempelaufnahme mit einer ersten Ausprägung für das Aufnehmen von Werkzeugeinsätzen 6 aus einem ersten Werkzeugsystem versehen. Die erste Stempelaufnahme 6 weist eine kreisrunde zylindrische Durchgangsbohrung 7 mit einer zweiten Mittelachse 8 in einem Abstand a von der ersten Mittelachse 2 auf. Um die zweite Mittelachse 8 weist der scheibenförmige Körper von seiner Oberseite aus eine zylindrische Senkung 9 auf. Die Senkung 9 weist einen Sektor mit einer bezüglich der zweiten Mittelachse 8 kreisrunden inneren Umfangsfläche 10, und einen Sektor, in dem die innere Fläche 11 parallel zu einer Tangente an die Durchgangsbohrung 7 ist, auf. Der Abstand zwischen der tangentialen inneren Fläche 11 und der zweiten Mittelachse 8 ist größer als der Radius der Durchgangsbohrung 7 und kleiner als der Radius des kreisrunden Sektors deren Senkung 9.The disc-shaped body is provided with a punch holder with a first expression for receiving
In einer alternativen Ausführungsform ist der scheibenförmige Körper mit mehreren ersten Stempelaufnahmen 6 versehen, die alle den gleichen Abstand a zwischen der ersten Mittelachse 2 und der zweiten Mittelachse 8 aufweisen.In an alternative embodiment, the disc-shaped body is provided with a plurality of
Weiterhin ist der scheibenförmige Körper mit einer Stempelaufnahme 12 mit einer zweiten Ausprägung versehen. Die Stempelaufnahme 12 weist eine kreisrunde zylindrische Durchgangsbohrung 13 mit einer dritten Mittelachse 14 in einem Abstand b von der ersten Mittelachse 2 auf. Der Durchmesser der Durchgangsbohrung 13 ist unterschiedlich zu dem Durchmesser des Durchgangsbohrung 7 der Stempelaufnahme mit der ersten Ausführungsform. Um die dritte Mittelachse 14 weist der scheibenförmige Körper von seiner Oberseite aus eine zylindrische Senkung 15 auf. Die Senkung 15 weist einen Sektor mit einer bezüglich der dritten Mittelachse 14 kreisrunden inneren Umfangsfläche 16, und einen Sektor, in dem die innere Fläche 17 parallel zu einer Tangente an die Durchgangsbohrung 13 ist, auf. Der Abstand zwischen der tangentialen inneren Fläche 17 und der dritten Mittelachse 14 ist größer als der Radius der Durchgangsbohrung 13 und kleiner als der Radius des kreisrunden Sektors der Senkung 15.Furthermore, the disk-shaped body is provided with a
In alternativen Ausführungsformen ist der scheibenförmige Körper entweder mit keiner oder mit mehreren zweiten Stempelaufnahmen 12 versehen, die, sofern vorhanden, alle den gleichen Abstand b zwischen der ersten Mittelachse 2 und der dritten Mittelachse 14 aufweisen.In alternative embodiments, the disc-shaped body is provided with either no or more
Weiterhin ist die Ausführung der ersten und/oder zweiten Stempelaufnahmen in anderen Ausführungsformen mit einer Senkung mit einer anderen Kontur, die nicht rotationssymmetrisch ist, möglich. Die Kontur ist auch nicht zwangsläufig zylindrisch, sondern kann auch konisch ausgebildet sein. In weiteren Ausführungsformen können auch am Umfang der Bohrung oder der Senkung zumindest eine oder mehrere Aussparungen vorgesehen sein, die zu ihrer Mittelachse nicht rotationssymmetrisch sind.Furthermore, the execution of the first and / or second punch recordings in other embodiments with a reduction with another contour, which is not rotationally symmetrical, possible. The contour is not necessarily cylindrical, but may also be conical. In further embodiments, at least one or more recesses may be provided on the circumference of the bore or the countersink, which are not rotationally symmetrical to its central axis.
Analog zu den Stempelaufnahmen ist in dem scheibenförmigen Körper eine Durchgangsbohrung 37 mit einer zylindrischen Schraubensenkung zur Befestigung von Werkzeugeinsätzen aus einem zweiten Werkzeugsystem vorgesehen.Analogous to the stamp receptacles a through
In
Durch die Anordnung der Senkung 21 mit den Aussparungen 22, der Senkung 23 und der Durchgangsbohrung 24 mit der zylindrischen Senkung 25 ist die zentrische Aufnahme und Befestigung von Standardwerkzeugeinsätzen mit einer bestimmten Größe und Ausprägung der Anschlusseinrichtung der Werkzeuge möglich. Die Aussparungen 22 dienen hierbei einer definierten Orientierung von Standardwerkzeugeinsätzen zu dem Stempelschaft 18.The arrangement of the
Der Werkzeugeinsatz 26 weist am unteren Ende einen zylindrischen Abschnitt 27 mit einer hier quadratischen Kontur auf. Die Kontur des Abschnitts 27 ist abhängig von der mit diesem Werkzeugeinsatz zu fertigenden Kontur eines Ausschnitts in einem plattenförmigen Körper. Anschließend folgt ein weiterer zylindrischer Abschnitt 28 mit in einer kreisrunden Form. Der Durchmesser des zylindrischen Abschnitts 28 ist so mit der Durchgangsbohrung 13 abgestimmt, dass eine axiale Gleitlagerung vorliegt. An dem oberen Ende des Werkzeugeinsatzes 26 weist dieser einen weiteren zylindrischen Abschnitt 29 mit einer Kontur auf, die zu der Kontur der Senkung 15 komplementär ist. Durch die tangentialen Flächen 17 (
Das Verdrehen des Werkzeugeinsatzes kann im Falle einer Senkung, die eine andere, nicht rotationssymmetrische, Kontur als die Senkung 15 in
Bei nicht erfindungsgemäßen Ausführungsformen, in denen keine Senkung in dem scheibenförmigen Körper vorgesehen sind, wird das Verdrehen des Werkzeugeinsatzes durch andere zusätzliche geeignete Mittel verhindert.In non-inventive embodiments in which no countersinking is provided in the disk-shaped body, the rotation of the tool insert is prevented by other additional suitable means.
Weiterhin kann ein Werkzeugeinsatz alternativ auch durch Anschrauben mittels einer zweiten Schraube, die durch die Bohrung 37, die mit einer Senkung versehen ist, befestigt werden.Furthermore, a tool insert can alternatively be attached by screwing by means of a second screw, which is provided through the
Der Stempeladapter 1 ragt mit seiner Aufnahmevorrichtung 3 in die Senkung 23 des Stempelschafts 18, wobei die Aufnahmevorrichtung 3 so mit der Senkung 23 abgestimmt ist, dass die Senkung 23 für die zylindrische Erhöhung der Aufnahmevorrichtung eine Zentrierung in radialer Richtung darstellt. Zur Befestigung des Stempeladapters 1 in dem Stempelschaft 18 ist eine Schraube 30 vorgesehen. Die Schraube 30 stützt sich in der Senkung 25 ab, ragt durch die Durchgangsbohrung 24, und ist mit dem Gewinde 4 des Stempeladapters verschraubt. Dadurch liegt die Oberseite des scheibenförmige Bereichs des Stempeladapters 1 an der Unterseite des scheibenförmigen Bereichs 20 des Stempelschafts 18 an.The stamp adapter 1 protrudes with its
Der Stempeladapter 1 wird so zum Stempelschaft 18 orientiert, dass die im Wesentlichen quaderförmige stabartige Erhöhung 5 (
Die Oberseite des Werkzeugeinsatzes 26 liegt mit seiner Oberseite an der Unterseite des Stempelschafts 18 an, und ist somit zwischen der Unterseite des Stempelschafts 18 und der Senkung 15 in seiner axialen Richtung relativ dazu unbeweglich vorgesehen.The top of the
Somit können Werkzeugeinsätze 26, die ohne größeren Aufwand herstellbar sind, in zwei verschiedenen Größen mit Hilfe des Stempeladapters 1 außermittig in einen bekannten Stempelschaft 18 aufgenommen werden.Thus, tool inserts 26, which can be produced without much effort, in two different sizes by means of the punch adapter 1 off-center be incorporated into a known
Die Anzahl der Matrizenaufnahmen 33, 34 ist in Abhängigkeit von der jeweiligen Ausführungsform variabel, wobei mindestens zwei Matrizenaufnahmen 33, 34 in einem Matrizenadapter 31 vorgesehen sind.The number of
Der Matrizenadapter 31 ist in einem Werkzeugunterteil 40 angeordnet. In dem Matrizenadapter 31 sind hier fünf verschiedenen Matrizen 41 in dem Abstand c von der Mittelachse 2 vorgesehen. Der Durchmesser der Matrizen 41 ist gegenüber dem Durchmesser des Werkzeugeinsatzes 26 im Werkzeugoberteil 38 jeweils größer, um einen Schneidspalt zwischen dem Werkzeugeinsatz 26 und den Matrizen 41 zu bilden. Der erforderliche Schnittspalt beträgt 10% der Blechdicke, so dass sich die Durchmesser der Matrizen 41 untereinander z.B. um wenige Zehntelmillimeter unterscheiden, um den erforderlichen Schnittspalt für das zu bearbeitende Blech mit der jeweiligen Dicke zu bilden. Die Auswahl, welcher Schneidspalt verwendet wird, wird durch ein relatives Verdrehen des Werkzeugoberteils 38 zu dem Werkzeugunterteil 40 mit dem Matrizenadapter getroffen.The
Im Betrieb wird das Werkzeugoberteil 38, soweit erforderlich, bei der Vorbereitung für einen Einsatz in der Stanzmaschine vorgerüstet, d.h. die Verbindung des Stempelschafts 18 und des Stempeladapters 1 wird einfach, hier nur durch Lösen und Herausdrehen der Schraube 30, getrennt, und das Werkzeugoberteil wird durch Auseinanderziehen in seine zwei Gehäuseteile, den Stempelschaft 18 und den Stempeladapter 1 zerlegt. Der auszuwechselnde Werkzeugeinsatz 26 wird dann aus der Stempelaufnahme 10, 12 ausgewechselt, indem der vorhandene Werkzeugeinsatz 26 heraus geschoben und ein anderer, benötigter Werkzeugeinsatz in die geeignete Stempelaufnahme 10, 12 eingeschoben wird. Der Adapter 1 wird dann wieder in den Stempelschaft 18 gesteckt und mit der Schraube 30 befestigt. Anschließend werden in die Matrizenaufnahmen 33, 34 des Matrizenadapters 31 die geeigneten Matrizen eingebracht. Das Werkzeugoberteil 19 und das Werkzeugunterteil 40 werden dann in eine Werkzeugkassette eingebracht und sind zur Verwendung in der Stanzmaschine bereit.In operation, the tool
Claims (13)
- Stamp adapter (1) for a tool system for a punching machine having a first central axis (2),
an accommodation device (3) for accommodating the stamp adapter (1) in a stamp shaft (18),
at least one stamp accommodation (6) having a first forming which comprises a second central axis (8), and the second central axis (8) extends parallel to the first central axis (2) and is not identical with the first central axis (2), wherein
the stamp accommodation (6) comprises a first through-bore (7) having the second central axis (8) and a counter bore which is not rotation symmetrical or a counter bore with at least one or several recesses which are provided in a not rotation symmetrical manner to the second central axis (8),
characterized in that
at least one of the stamp accommodations (6) comprises a counter bore (9, 15) which comprises a sector having a circular inner circumferential face (10, 16) with respect to the related central axis (8, 14) and a sector in which the inner face (11, 17) is parallel to a tangent at the through-bore (7, 13), wherein the distance between the tangential inner face (11, 17) and the related central axis (8, 14) is bigger than the radius of the related through-bore (7, 13) and smaller than the radius of the circular sector of the counter bore (9, 15). - Stamp adapter (1) according to claim 1, characterized in that
the stamp adapter (1) comprises at least one second stamp accommodation (12) having a second forming which comprises a third central axis (14) that extends parallel to the first central axis (2) and that is not identical with the first central axis (2), and the second stamp accommodation (12) comprises a second through-bore (13) having the third central axis (14) and a not rotation symmetrical counter bore or a counter bore with at least one or several recesses which are not rotation symmetrical to the third central axis (14). - Stamp adapter (1) according to claim 1 or 2, characterized in that
at least one of the counter bores (9, 15) is cylindrical. - Stamp adapter (1) according to any of the claims 1 to 3, characterized in that
the adapter (1) comprises at least one second stamp accommodation (6) having the first forming with the second central axis (8), and a distance (a) between the first central axis (2) and both of the second central axes (8) is identical. - Stamp adapter (1) according to any of the claims 1 to 4, characterized in that
the adapter (1) comprises at least one second stamp accommodation (12) having the second forming with the second through-hole (13) with the third central axis (14), and a distance (b) between the first central axis (2) and both of the third central axes (14) is identical. - Stamp adapter (1) according to any of the preceding claims, characterized in that the adapter (1) comprises a central thread (4) having the first central axis (2) for connection with the stamp shaft (18) by means of a first screw (30).
- Stamp adapter (1) according to any of the preceding claims, characterized in that
the adapter (1) comprises at least one through-bore (37) for accommodating a second screw for screwing on a tool bit. - Tool upper portion (38) for a tool system for a punching machine, comprising
a stamp shaft (18),
a stamp adapter (1), and
at least one replaceable tool bit (26),
characterized in that
the stamp adapter (1) is designed according to any of the claims 1 to 7. - Tool upper portion (38) according claim 8, characterized in that
the tool upper portion (38) comprises a fastener (30) and is separable by simply loosening the connection between the stamp shaft (18) and the stamp adapter (1). - Tool upper portion according to claim 8 or 9, characterized in that
the stamp shaft (18) and the stamp adapter (1) comprise a rotation lock (5, 22). - Tool system for a punching machine, comprising
a tool upper portion (19) according to any of claims 8 to 10, and
a tool lower portion (40) comprising a die adapter (31) having at least two die accommodations (33), wherein a die (41) which is respectively related to the tool bit (26) is provided in the die accommodations (33). - Tool system for punching machine according to claim 11, characterized in that the die adapter (31) comprises a fourth central axis (32) and the die accommodations (33) respectively comprise a fifth central axis (35), and the distance (a) between the first central axis (2) and the second central axis (8) and a distance (c) between the fourth central axis (32) and the fifth central axis (35) are identical.
- Tool system according to claim 12, characterized in that
the die adapter (31) comprises die accommodations (34) having a second forming and a respective sixth central axis (36), and the distance (b) between the first central axis (2) and the third central axis (14) and a distance (d) between the fourth central axis (32) and the sixth central axis (36) are identical.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14167224.6A EP2764933B1 (en) | 2008-12-10 | 2008-12-10 | Tool system with exchangeable tool inserts for punching machines |
EP20080021443 EP2196270B1 (en) | 2008-12-10 | 2008-12-10 | Tooling system with interchangeable tooling inserts for punching machines |
US12/635,279 US8567228B2 (en) | 2008-12-10 | 2009-12-10 | Tool system with interchangeable tool inserts for punching machines |
US14/048,697 US9908254B2 (en) | 2008-12-10 | 2013-10-08 | Tool system with interchangeable tool inserts for punching machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20080021443 EP2196270B1 (en) | 2008-12-10 | 2008-12-10 | Tooling system with interchangeable tooling inserts for punching machines |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14167224.6A Division EP2764933B1 (en) | 2008-12-10 | 2008-12-10 | Tool system with exchangeable tool inserts for punching machines |
Publications (2)
Publication Number | Publication Date |
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EP2196270A1 EP2196270A1 (en) | 2010-06-16 |
EP2196270B1 true EP2196270B1 (en) | 2014-05-07 |
Family
ID=40512228
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20080021443 Not-in-force EP2196270B1 (en) | 2008-12-10 | 2008-12-10 | Tooling system with interchangeable tooling inserts for punching machines |
EP14167224.6A Not-in-force EP2764933B1 (en) | 2008-12-10 | 2008-12-10 | Tool system with exchangeable tool inserts for punching machines |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14167224.6A Not-in-force EP2764933B1 (en) | 2008-12-10 | 2008-12-10 | Tool system with exchangeable tool inserts for punching machines |
Country Status (2)
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US (2) | US8567228B2 (en) |
EP (2) | EP2196270B1 (en) |
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US9481064B2 (en) | 2014-02-23 | 2016-11-01 | Wilson Tool International Inc. | Multi-tool adaptor |
CN104842402A (en) * | 2015-04-17 | 2015-08-19 | 苏州琼派瑞特电子科技有限公司 | Cold cutting mechanism of magic tape cutting machine |
USD797825S1 (en) * | 2015-10-05 | 2017-09-19 | Wolter Corp. | Metal stamp jig |
USD803907S1 (en) * | 2016-03-01 | 2017-11-28 | Stolle Machinery Company, Llc | Set of locating fingers |
USD787576S1 (en) * | 2016-03-01 | 2017-05-23 | Stolle Machinery Company, Llc | Punch with locating fingers |
CN105945130B (en) * | 2016-07-12 | 2017-12-15 | 安徽骆氏升泰汽车零部件有限公司 | Automobile control arm hole punched device |
PL3515622T3 (en) * | 2016-09-26 | 2021-01-11 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Tool, machine tool, and method for cutting and/or forming planar workpieces |
CN106862405B (en) * | 2017-02-24 | 2018-10-30 | 苏州廖若机电科技有限公司 | A kind of simple clamped formula stainless-steel sheet punching clamping device |
CN106938294A (en) * | 2017-04-27 | 2017-07-11 | 安徽汇源制衣有限责任公司 | A kind of button rotates dotting punch mould |
US12046886B2 (en) * | 2020-10-08 | 2024-07-23 | Milbank Manufacturing Co. | Punch set for electrical box |
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Also Published As
Publication number | Publication date |
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US8567228B2 (en) | 2013-10-29 |
EP2196270A1 (en) | 2010-06-16 |
US9908254B2 (en) | 2018-03-06 |
US20140033887A1 (en) | 2014-02-06 |
EP2764933A1 (en) | 2014-08-13 |
US20100139470A1 (en) | 2010-06-10 |
EP2764933B1 (en) | 2016-10-05 |
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