EP0140373A2 - Poinçonneuse et jeu d'outils pour poinçonneuses - Google Patents

Poinçonneuse et jeu d'outils pour poinçonneuses Download PDF

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Publication number
EP0140373A2
EP0140373A2 EP84113082A EP84113082A EP0140373A2 EP 0140373 A2 EP0140373 A2 EP 0140373A2 EP 84113082 A EP84113082 A EP 84113082A EP 84113082 A EP84113082 A EP 84113082A EP 0140373 A2 EP0140373 A2 EP 0140373A2
Authority
EP
European Patent Office
Prior art keywords
punch
punching
guide
punching machine
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.)
Granted
Application number
EP84113082A
Other languages
German (de)
English (en)
Other versions
EP0140373A3 (fr
EP0140373B1 (fr
Inventor
Ferdinand Dietz
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.)
Dietz NC-Werkzeugsysteme
Original Assignee
Dietz NC-Werkzeugsysteme
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 Dietz NC-Werkzeugsysteme filed Critical Dietz NC-Werkzeugsysteme
Priority to AT84113082T priority Critical patent/ATE42699T1/de
Publication of EP0140373A2 publication Critical patent/EP0140373A2/fr
Publication of EP0140373A3 publication Critical patent/EP0140373A3/xx
Application granted granted Critical
Publication of EP0140373B1 publication Critical patent/EP0140373B1/fr
Expired legal-status Critical Current

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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
    • 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
    • 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
    • B21D28/246—Selection of punches

Definitions

  • the invention relates to a punching machine with a feed device for the cyclical further movement of the material to be punched through the punching machine, with a series of tool elements, each of which has a die arranged in a die holder and a guide for a punch, arranged at a distance above it, and with a die the stamping head plate of the drive device.
  • a punching machine of this type is known from the magazine “Bands, sheets, tubes” (1976), pages 448 to 450.
  • the tool elements are each C-shaped and individually attached to a table of the punching machine. With each downward movement of the head plate under the action of the drive device of the punching machine, all of the punching dies provided are simultaneously moved to the material to be punched and the dies, so that they all perform a (punching) cut at the same time.
  • the punching machine works according to the principle of the follow-up cut, in which the material to be punched is cycled through the punching machine between the punching strokes, a series of identical punchings or identical punching patterns being punched one after the other and a specific workpiece to be punched having several identical punchings or punching patterns one after the other .
  • the invention has for its object to provide a punching machine that is as universal as possible and that should be able to punch quickly and with high precision, in particular workpieces that have an overall punching pattern that cannot be subdivided into identical individual punching patterns.
  • the punching machine is characterized in that the punch is guided by a respective guide sleeve which is interchangeably inserted in a guide plate arranged at a distance above the die and in which the punch is slidably guided and that the tool elements in each case a coupling device that can be switched on and off is assigned, which serves for the optional transfer of the punching force to the assigned punch.
  • the guide sleeves with punch and the dies can be exchanged extremely easily or removed or inserted according to the respective punching task, and one or more punches can be switched off from a provided punch arrangement with each punch stroke so that he or she does not perform any punching.
  • the punching machine according to the invention can work according to the follow-up cutting principle or the complete cutting principle. With punching according to the follow-up principle, the individual cuts of the cut sequence can, if necessary, be carried out with punch stamps switched on and off differently, which considerably expands the range of parts that can be produced according to the follow-up principle.
  • the punching machine according to the invention also rationalizes punching according to the complete cutting principle, because with a single row of tool elements, each having a punch with an associated die, a larger number of different ones Parts can be punched if you switch other punches on and off depending on the part to be punched, and because new tool sets can be put together quickly by simply replacing, removing or adding guide sleeves with punch and die.
  • part families are also significantly simplified, as will be explained in more detail below.
  • the cutting off of the respectively punched part from the material to be punched which is fed as a continuous band can also be integrated into the function of the punching machine according to the invention by providing a punching punch which acts as a severing punch and which is only switched on at the end of the sequence of the individual punchings.
  • the punching machine according to the invention can be built much lighter and smaller than conventional punching machines in terms of the installed drive power, since these had to be designed for maximum occupancy, i.e. use of the entire machine length in the direction of material movement for use of the punch and the resulting forces and required power.
  • the intermediate pieces of the coupling devices are preferably pneumatically, hydraulically, mechanically or electromagnetically displaceable.
  • the tool element assembly and / or the coupling device assembly can preferably be replaced as a whole.
  • a switchable coupling device is advantageously provided for each punch that can be switched on and off, although it is also possible to provide for punching dies to be switched on and off in groups. Conveniently, all punches of the punch arrangement provided can be switched on and off.
  • the invention further relates to a tool set for installation in an existing press, which has a die arranged in a die holder and at a distance above it has a tool guide for a punch, the guide being a guide sleeve which is interchangeably inserted into a guide plate and is axially displaceable against spring action, and wherein the punch is axially displaceable against spring action in the guide sleeve.
  • a tool set consisting of a punch and a die is known from DE-OS 25 38 605.
  • the tool set according to the invention is characterized in that the tool set is assigned a coupling device which can be switched on and off and which serves for the optional transfer of the punching force to the punch, that a number of the guide sleeves, punch and dies are combined to form a structural unit in which one over their length extending lower part forms the receptacles for the matrices and an upper part which extends over their length and is arranged at a distance above them forms the guide plate for the guide sleeves, and that a number of coupling devices are also combined to form a structural unit.
  • a coupling device which can be switched on and off and which serves for the optional transfer of the punching force to the punch, that a number of the guide sleeves, punch and dies are combined to form a structural unit in which one over their length extending lower part forms the receptacles for the matrices and an upper part which extends over their length and is arranged at a distance above them forms the guide plate for the guide sleeves, and that a number of coupling devices are also combined
  • punching dies punching force or the like
  • the punching machine according to the invention is preferably electronically controlled, in particular CNC-controlled (computerized numerical control).
  • This control can take over the switching on and off of the individual punches or the drive of the individual punches and, if necessary, the feed device.
  • the control is advantageously carried out by means of an integrated, program-controlled computer, to which the data for the workpiece to be manufactured are fed.
  • the reaching of the top and bottom dead center of the punching stroke can be detected by sensors, the respective punch stamps being switched on after top dead center and being switched off after bottom dead center.
  • a check can be carried out, for example, by means of a sensor as to whether punching waste comes from all the punching dies that are switched on, the punching machine automatically switching off in the event of faults not noticeable by punching waste not occurring.
  • the punching machine according to the invention can be fully automated and, as a result, can also be operated without operating personnel, for example at night.
  • the control can be programmed, for example, using a keypad, punched tape or information carrier cassette.
  • the head plate 2 can be moved along guide columns 6 onto the machine table 38 by means of a drive device, not shown, for example in the form of a hydraulic punch stroke drive.
  • a drive device not shown, for example in the form of a hydraulic punch stroke drive.
  • the head plate 2, which in the illustrated embodiment has the shape of a bar extending in the longitudinal direction of the punching machine, extends above the row of tool elements 42. To carry out the punching movement, the head plate is moved downwards and applies punching force to one, several or all of the tool elements 42 .
  • the tool element 42 shown consists essentially of a die holder 24 arranged on the bottom part 44 with a die designed as an inserted cutting insert 26, a punching die unit 48 inserted into the top part 46 from above, which can be moved downwards towards the die against the action of springs 50, and a coupling device attached to the bottom of the head plate 2.
  • the coupling device essentially consists of a vertical blind bore 54 open at the bottom with a plunger 56 arranged vertically displaceably therein is displaceable and serves to switch the plunger 56 on and off.
  • an opening 40 is provided in the lower part and in the machine table 38 for removing the punching waste.
  • the individual punching dies 18 can be switched on and off as required by a CNC control. E.g. For each punch stroke, an identical recess can be punched next to the other, while certain holes in the workpiece, for example, are only punched once after a certain number of recesses and a separating cutting punch is actuated only once at the end of the workpiece with the punched row of recesses becomes.
  • the tool elements 42 or the stamping dies 18 do not have to be arranged in a straight line, but the stamping stamps 18 can also — viewed in the viewing direction of FIG. 1 — be arranged partly behind and partly in front of the drawing plane. It is also possible to provide a plurality of switchable punching dies 18 in one plane transverse to the longitudinal extent of the punching machine.
  • a group of a plurality of dies 26, stamping die units 48 and coupling devices can also be combined as a structural unit or tool set.
  • the punch unit 48 is inserted in the simplest way from above into a corresponding hole in the upper part 46. The same applies to the die 26.
  • the tool elements 42 can be provided not only in one row in the longitudinal direction of the punching machine, but also in several rows one behind the other, as seen in the viewing direction of FIG. 1.
  • a punching machine is thus in front of it, with the individual Tool elements 42 or groups of tool elements 42 can be arranged at a selectable location on the punching machine, adapted to the particular punching task.
  • the tool elements 42 are also ideal for retrofitting existing punching machines.
  • a preferred embodiment for a punch unit 48 is shown in more detail.
  • An upper tool head 58, a lower guide sleeve 60 and a spring element 62 arranged between them can be seen.
  • the punch unit 48 is of the type lubricated from the inside by an oil supply channel 66, the lubricating oil reaching down to the cutting stamp 18 and its passage through the lower end of the guide sleeve 60. If the plunger 56 (FIGS.
  • the die 26 shown in Fig. 3 is a cutting insert in a so-called one-way design, which is therefore not re-sharpened when blunt but is replaced.
  • the cutting punch receptacle 24 has a receptacle cutout 70, which is circular but has a straightening 68, as seen from above.
  • the cutting insert 26 provided with a corresponding circumferential contour is inserted into this from above and fastened with small screws.
  • the cutting insert 26 contains the actual die cutting opening 28.
  • the straightening 68 ensures that the cutting insert 26 is in a precise position.
  • Fig. 4 shows a simple example of a so-called family of parts from the switch housing construction.
  • families of parts also of a much more complicated type, can be created with one designed according to the invention Manufacture punching machine particularly efficiently.
  • FIG. 4 a shows the simplest part of the family of parts, in which there are seven large punched recesses 72 arranged at an identical distance and a smaller punched recess 74 between them.
  • two punches 18 are provided in the longitudinal direction of the punching machine, one for punching a larger recess 72 and the other for punching a smaller recess 74. Both stamping dies are actuated at the same time after the part 76 has been advanced by the feed length a.
  • a separating cutting punch could only be provided for separating the finished part 76 from the strip-shaped punching raw material, which is only switched on once after seven punching strokes.
  • the part 78 according to FIG. 4b) differs from the part 76 in that it has a shorter length and in that an elongated recess shape 74 'has to be punched in part of the smaller recesses 74.
  • an additional punching punch can be provided, spaced apart from the two punching dies described above, which punches the extensions of the recesses 74 '.
  • This additional punch is to be controlled so that it does not perform the punching every time the punching machine is punched, but only where this is specified by the program control of the punching machine. Otherwise this additional punch remains switched off.
  • the separating cutting punch is to be controlled in such a way that after a part 78 with five recesses 72 it is cut off.
  • the part 80 according to FIG. 4c) differs from the parts 76 and 78 in that the larger recesses 72 have a smaller mutual center distance a, that the smaller recesses 74 ′′ are smaller than before, that holes 82 have to be punched between the recesses 72 in some of the sheet metal tabs and that a special recess 84 is to be stamped with a different shape at the beginning of the part 80 .
  • the procedure here is analogous to that of part 76.
  • a separate punch is provided for the holes 82 and the separate recess 84, analogously to FIG. 4b) for the extension of the smaller recesses 74
  • the additional punch stamps are to be switched on in a controlled manner when a hole 82 or a recess 84 is to be punched.
  • FIG. 5 shows a top view of a turret plate 90 which can be used in the punching machine according to the invention.
  • the turret plate 90 has an essentially octagonal shape with rounded corners and can be rotated in 90 ° or 45 ° steps about its vertical axis of rotation 92.
  • a total of 14 through bores 94 are distributed over the circumference of the turret 90 such that at least some of the turret positions of the turret 90 have a plurality of bores 94 arranged along a straight line 96 in the longitudinal direction of the punching machine.
  • At a distance below the turret plate 90 is another, similar turret plate, not visible in FIG. 5. These two turret heads can be incremented together.
  • the lower turret plate rests on the machine table 38, but can rotate on it in a rotationally sliding manner when switching over.
  • the bores 94 serve to insert punching die units 48 in the same manner as shown in FIG. 2.
  • die receptacles 24 and dies 26 are arranged in the same places in the same way as shown in FIG. 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Punching Or Piercing (AREA)
  • Shearing Machines (AREA)
EP84113082A 1983-10-31 1984-10-30 Poinçonneuse et jeu d'outils pour poinçonneuses Expired EP0140373B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84113082T ATE42699T1 (de) 1983-10-31 1984-10-30 Stanzmaschine und werkzeugsatz fuer stanzmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3339503 1983-10-31
DE3339503A DE3339503C2 (de) 1983-10-31 1983-10-31 Stanzmaschine und Werkzeugsatz für Stanzmaschinen

Publications (3)

Publication Number Publication Date
EP0140373A2 true EP0140373A2 (fr) 1985-05-08
EP0140373A3 EP0140373A3 (fr) 1985-07-31
EP0140373B1 EP0140373B1 (fr) 1989-05-03

Family

ID=6213184

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84113082A Expired EP0140373B1 (fr) 1983-10-31 1984-10-30 Poinçonneuse et jeu d'outils pour poinçonneuses

Country Status (4)

Country Link
EP (1) EP0140373B1 (fr)
AT (1) ATE42699T1 (fr)
DE (2) DE3339503C2 (fr)
WO (1) WO1985001896A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0208938A2 (fr) * 1985-06-17 1987-01-21 Kabushiki Kaisha Tokai Rika Denki Seisakusho Procédé et appareil de poinçonnage à la presse de différents contours
EP0367920A2 (fr) * 1988-11-08 1990-05-16 Muhr Und Bender Maschinenbau Gmbh Machine-outil
EP1445042A1 (fr) * 2003-02-07 2004-08-11 SALVAGNINI ITALIA S.p.A. Tête de travail à poinçons multiples pour une machine à poinçonner des tôles à commande numérique

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3817824A1 (de) * 1988-05-26 1989-11-30 Ronniger Hans Eberhard Stanzvorrichtung mit mehreren stanzbuegeln
US4995289A (en) * 1989-07-07 1991-02-26 Amp Incorporated Die assembly having improved insert retaining system and having reversible die inserts
DE3935498C3 (de) * 1989-10-25 1997-05-07 Innovations Projekte Ag Schaltbare Presseinrichtung zum Bearbeiten von Werkstücken
JPH07214491A (ja) * 1991-12-11 1995-08-15 Byung-Jun Song 抜型用カッター切断装置
US6675682B2 (en) * 1991-12-11 2004-01-13 Byung-Jun Song Cutting apparatus and automatic cutting system of blade's raw material of blanking die
DE102014105266B4 (de) * 2014-04-14 2018-11-15 Ring Besitz GmbH & Co. KG Stanze
DE102017121985B3 (de) 2017-09-22 2019-02-07 Ring Maschinenbau GmbH Perforiermaschine
DE202019000468U1 (de) 2019-02-01 2019-02-22 WISTA Werkzeugfertigungs-GmbH Stanz-/Perforiermaschine
DE202019001572U1 (de) 2019-04-05 2019-06-03 WISTA Werkzeugfertigungs-GmbH Stanz-/Perforiermaschine und Bearbeitungsanlage mit einer derartigen Stanz-/Perforiermaschine
DE202019001573U1 (de) 2019-04-05 2019-06-03 WISTA Werkzeugfertigungs-GmbH Stanz-/Perforiermaschine
CN112519188A (zh) * 2020-11-18 2021-03-19 苏州汇弘电器有限公司 便于分离的橡胶生产用模具

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE441599C (de) * 1924-11-16 1927-03-07 Waggon Und Maschinenfabrik Akt Verfahren zum Stanzen von Loechern in Winkel, Schienen und aehnliche Werkstuecke
US1963313A (en) * 1932-06-25 1934-06-19 Jesse S Richardson Gag operating device
US2576328A (en) * 1949-09-10 1951-11-27 Allison Steel Mfg Company Punch press
US3048328A (en) * 1960-09-02 1962-08-07 Western Electric Co Apparatus for working selected portions of articles
DE1218276B (de) * 1962-05-18 1966-06-02 Zuse K G Vorrichtung zum Lochen von flaechenhaften Werkstuecken
DE1502721B2 (de) * 1964-09-03 1973-10-04 Constructiewerkhuizen Gilbos P.V.B.A., Aalst (Belgien) Vorrichtung zur Auswahl von Stanzstempeln in Stanzmaschinen
DE2538605A1 (de) * 1975-02-14 1976-08-26 Houdaille Industries Inc Stanzvorrichtung
DE2264851B2 (de) * 1971-02-19 1977-06-02 U.S. Amada Ltd., Seattle, Wash. (V.StA.) Revolverstanzpresse

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7516049U (de) * 1975-09-25 Bosch R Gmbh Schneidwerkzeug mit Schneidstempel
DE656738C (de) * 1933-06-01 1938-02-15 Zeiss Ikon Ag Stanz- und Schnittwerkzeug mit auswechselbaren Schnittplatten
GB865577A (en) * 1958-04-29 1961-04-19 Mississippi Valley Structural Improvements in or relating to punching machines
DE1246652B (de) * 1962-02-10 1967-08-10 Mueller Fritz Stufenpresse
DE2505667A1 (de) * 1975-02-11 1976-08-19 Pkm Planungsgesellschaft Fuer Werkzeug zum stanzen und/oder praegen
US4096774A (en) * 1976-06-21 1978-06-27 Houdaille Industries, Inc. Turret punches
US4160372A (en) * 1977-11-28 1979-07-10 The Minster Machine Company Transfer press having quick change die sets
DE2900526C2 (de) * 1978-07-15 1991-02-14 Aida Engineering, Ltd., Sagamihara, Kanagawa Werkzeugschnellwechseleinrichtung für eine Stufenpresse

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE441599C (de) * 1924-11-16 1927-03-07 Waggon Und Maschinenfabrik Akt Verfahren zum Stanzen von Loechern in Winkel, Schienen und aehnliche Werkstuecke
US1963313A (en) * 1932-06-25 1934-06-19 Jesse S Richardson Gag operating device
US2576328A (en) * 1949-09-10 1951-11-27 Allison Steel Mfg Company Punch press
US3048328A (en) * 1960-09-02 1962-08-07 Western Electric Co Apparatus for working selected portions of articles
DE1218276B (de) * 1962-05-18 1966-06-02 Zuse K G Vorrichtung zum Lochen von flaechenhaften Werkstuecken
DE1502721B2 (de) * 1964-09-03 1973-10-04 Constructiewerkhuizen Gilbos P.V.B.A., Aalst (Belgien) Vorrichtung zur Auswahl von Stanzstempeln in Stanzmaschinen
DE2264851B2 (de) * 1971-02-19 1977-06-02 U.S. Amada Ltd., Seattle, Wash. (V.StA.) Revolverstanzpresse
DE2538605A1 (de) * 1975-02-14 1976-08-26 Houdaille Industries Inc Stanzvorrichtung

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0208938A2 (fr) * 1985-06-17 1987-01-21 Kabushiki Kaisha Tokai Rika Denki Seisakusho Procédé et appareil de poinçonnage à la presse de différents contours
EP0208938A3 (en) * 1985-06-17 1989-04-26 Kabushiki Kaisha Tokai Rika Denki Seisakusho A method and apparatus for press-cutting various patterns
EP0367920A2 (fr) * 1988-11-08 1990-05-16 Muhr Und Bender Maschinenbau Gmbh Machine-outil
EP0367920A3 (fr) * 1988-11-08 1990-12-12 Muhr Und Bender Maschinenbau Gmbh Machine-outil
EP1445042A1 (fr) * 2003-02-07 2004-08-11 SALVAGNINI ITALIA S.p.A. Tête de travail à poinçons multiples pour une machine à poinçonner des tôles à commande numérique

Also Published As

Publication number Publication date
WO1985001896A1 (fr) 1985-05-09
DE3339503A1 (de) 1985-05-09
ATE42699T1 (de) 1989-05-15
EP0140373A3 (fr) 1985-07-31
EP0140373B1 (fr) 1989-05-03
DE3477998D1 (en) 1989-06-08
DE3339503C2 (de) 1985-09-05

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