EP3870415A1 - Outil de poinçonnage pourvu d'un corps supérieur et d'un corps inférieur disposé à distance du corps supérieur - Google Patents

Outil de poinçonnage pourvu d'un corps supérieur et d'un corps inférieur disposé à distance du corps supérieur

Info

Publication number
EP3870415A1
EP3870415A1 EP19804630.2A EP19804630A EP3870415A1 EP 3870415 A1 EP3870415 A1 EP 3870415A1 EP 19804630 A EP19804630 A EP 19804630A EP 3870415 A1 EP3870415 A1 EP 3870415A1
Authority
EP
European Patent Office
Prior art keywords
tool body
punching
tool
punch
guide axis
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.)
Withdrawn
Application number
EP19804630.2A
Other languages
German (de)
English (en)
Inventor
Andreas Winters
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.)
EHRT MASCHB GmbH
Ehrt Maschinenbau GmbH
Original Assignee
EHRT MASCHB GmbH
Ehrt Maschinenbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EHRT MASCHB GmbH, Ehrt Maschinenbau GmbH filed Critical EHRT MASCHB GmbH
Priority claimed from PCT/EP2019/078645 external-priority patent/WO2020083864A1/fr
Publication of EP3870415A1 publication Critical patent/EP3870415A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B21D28/12—Punching using rotatable carriers
    • B21D28/125—Punching using rotatable carriers with multi-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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/34—Perforating tools; Die holders
    • 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
    • B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
    • 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
    • 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
    • B26F2001/4454—Die heads carrying several moveable tools

Definitions

  • Tool tool with a tool upper body and a tool lower body spaced apart from the tool upper body
  • the invention relates to a cutting tool and a processing machine for processing a workpiece with such a cutting tool.
  • the cutting tools have a cutting unit by means of which the workpiece to be punched is punched.
  • punching tools have an upper tool body and a lower tool body.
  • a punching tool with a tool upper body, a lower tool body arranged at a distance from the upper tool body, at least one punching unit and a centrally arranged guide axis which extends partially through the upper tool body and the lower tool body, the upper tool body being movable relative to the lower tool body and the Guide axis guides the movement of the upper part of the tool.
  • the cutting tool according to the invention has the advantage that the centrally arranged guide axis can guide the upper part of the tool with high precision. This increases the punching time of the punching tool. It is also possible with the punching tool according to the invention that, for example, workpieces, in particular copper workpieces, can be punched with a thickness of 20 mm.
  • the punching tool can have at least two bolts.
  • the bolts can be arranged off-center and / or can extend partially through the upper tool body and the lower tool body. The provision of the bolts can easily prevent the tool upper body from rotating relative to the tool base body ⁇ .
  • the bolts can be arranged radially if the upper tool body and / or the lower tool body have a circular axis normal cross section.
  • the bolts can be radially spaced from a central axis of the punching tool. This means that the bolts can each be arranged in a region radially spaced from the central axis of the punching tool.
  • the bolts can be arranged at a distance from one another along the circumference of the upper tool body and / or the lower tool body.
  • the bolts can be arranged in such a way that the respective centers of the bolts are spaced apart from one another on a circular line.
  • one end of the bolt can be firmly connected to a sliding block, in particular releasably.
  • the end of the bolt can be screwed to the sliding block.
  • the sliding block can be arranged in a recess of the lower tool body, with a play between the sliding block and a wall delimiting the recess ⁇ .
  • the socket can be arranged in the upper part of the tool.
  • the bolt can extend through the bushing, wherein the bushing which is firmly connected to the bolt can move relative to the bolt. This makes it easy to ensure that the bolt does not move together with the upper part of the tool during a cutting process, but remains stationary ⁇ .
  • One end of a spring can be supported on an end of the bolt remote from the sliding block. This offers the advantage that when the upper part of the tool is returned to a starting position after a punching process, a bolt head is prevented from being damaged by the tool judgment.
  • the spring can be supported on the bush at another end.
  • the guide axis can be firmly connected to the tool upper body.
  • the fixed connection can be realized for example by a screw connection.
  • the guide axis can be movable relative to the lower tool body.
  • the lower tool body can have a holder in which the guide axis is arranged and in which it can move during the punching process.
  • the upper tool body and lower tool body can be arranged coaxially ⁇ .
  • the guide axis can be arranged coaxially with the tool upper body and the lower tool body. This creates a particularly compact punching tool.
  • the tool holder body can guide the tool unit. As a result, the seed unit can be guided in a simple manner.
  • the cutting unit can be arranged off-center and / or axially offset from the guide axis.
  • a longitudinal axis of the cutting unit can run parallel to a central axis of the cutting tool, in particular to a longitudinal axis of the guide axis.
  • the cutting tool can have several cutting units, in particular exactly six cutting units.
  • the knife inserts can be arranged ⁇ in the circumferential direction of the upper tool body and / or the lower tool body.
  • the midpoints of the Sfanzheifen can be arranged along a circular line ⁇ objectionable to each other.
  • the cantilevers are arranged in a turret design.
  • the guide axis can be arranged in the space enclosed by the circular line.
  • the sfanzheif may have a sfanzsfempel and a sfanzbelf formed separately from the sfanzsfempel.
  • the canning pin can exert a compressive force on the canning punch.
  • the spring stamp moves out of the tool body, so that the spring operation can be carried out.
  • the Sfanzsfempel and the Sfanzbolzen can be arranged coaxially to each other.
  • Moving the cantle can be done by an Akfuafor of the processing machine.
  • the Akfuafor exerts a verse skin movement, which leads to the movement of the spring unit.
  • the Akfuafor can have, for example, a fly hydraulic cylinder.
  • a punching unit ⁇ or several punching units can be operated.
  • the actuator it is possible for the actuator to actuate all the punching units at the same time. In this case, the workpiece is punched through all punching units at the same time.
  • the stamping tool can have a different spring.
  • the other spring is supported at one end on the punch bolt and at one end on the tool upper body.
  • the other spring is tensioned during a punching process.
  • Each punching unit ⁇ of the punching tool can be assigned a different spring ⁇ .
  • the other spring serves to press the punching bolt of the punching unit ⁇ , which does not punch the workpiece, towards the workpiece. This can be prevented in a simple manner that the end removed from the punch stamp protrudes from the upper part of the tool.
  • the punch can have a T-shaped stamp head ⁇ .
  • the T-shaped punch head is located in a recess on the upper part of the tool ⁇ .
  • the T-shaped punch head exerts a force on the tool upper body in the direction of the workpiece due to the, in particular, positive connection with the tool upper body.
  • the lower tool body can have a base plate which receives at least one, in particular several, wipers ⁇ .
  • the scraper can be arranged in a holder in the base plate ⁇ .
  • the scraper can guide the punching unit ⁇ .
  • the scraper prevents the workpiece from moving together with the punch unit ⁇ in the retracting direction of the punch unit ⁇ after a punching process.
  • the stripper on the punch after the stamping process can be contaminated Remove before the punch is pulled back into the tool body and / or the base plate.
  • the scraper can be connected to the punching unit in a rotational test.
  • the scraper can be connected to the bottom plate in a rotational test. It is thereby achieved ⁇ in a simple manner that the punching unit is prevented from rotating relative to the upper tool body and / or the lower tool body. This is particularly advantageous for punching units that have a square shape in the axis normal cross section.
  • a processing machine for machining a workpiece with a tool holder, in which a punching tool according to the invention is arranged, is particularly advantageous.
  • the punching tool is not screwed to the tool holder. During the punching process, the punching tool is moved towards the workpiece.
  • the tool holder serves as a guide for the punching tool.
  • FIG. 1 shows a side cross section of the punching tool according to the invention
  • Figure 2 is a perspective view of the punch shown in Figure 1.
  • FIG. 1 shows a side cross section of a punching tool 1 according to the invention for punching a workpiece not shown in the figures.
  • the punch 1 has a tool upper body 2, a tool lower body 3 spaced from the tool upper body 2 ⁇ , a plurality of punching units 4 and a centrally arranged guide axis 5.
  • the guide axis 5 runs coaxially with a central axis M of the tool 1.
  • the guide axis 5 extends partially through the upper tool body 2 and the lower tool body 3.
  • the upper tool body 2 can be moved relative to the lower tool body 3 and the guide axis 5 guides the movement of the upper tool body 2
  • Upper tool body 2 moves in a direction towards the lower tool body 3 ⁇ .
  • the guide axis 5 extends in an unactuated state of the punch 1 also through a between
  • the guide axis 5 is, in particular releasably, firmly connected to the upper tool body 2.
  • the fixed connection is realized by a screw connection.
  • the lower tool body 3 has a receptacle 18 for receiving the guide axis 5.
  • the upper tool body 2 and the lower tool body 3 are arranged coaxially ⁇ .
  • the guide axis 5 is arranged coaxially to the upper tool body 2 and lower tool body 3 ⁇ .
  • the punch 1 has several eccentrically arranged bolts 6.
  • the bolts 6 are arranged axially offset from the guide axis 5 and run parallel to this.
  • One end of the bolt 6 is firmly connected to a sliding block 7.
  • the fixed connection is realized by a screw connection.
  • the sliding block 7 is arranged in a recess 8 of the lower tool body 3 ⁇ .
  • the recess 8 is in one arranged radially projecting flange 20 of the lower tool body 3.
  • the sliding block 7 and the recess 8 are dimensioned such that there is play between the sliding block 7 and a wall 9 defining the recess 8. In particular, there is play between the wall 9 of the recess 8 and the sliding block 7 in the radial direction. This prevents the bolt 6 from becoming jammed when the punch 1 is assembled. In the axial direction of the punch 1, ie in the direction along the central axis M, the sliding block 7 abuts against the wall 9 of the flange of the lower tool body 2 that defines the recess 8.
  • the bolt 6 extends through a bush 1 1.
  • the socket 1 1 is arranged in the upper tool body 2 and firmly connected to the upper tool body 2. During a punching operation, the upper tool body 2 moves relative to the bolt 6. A force is exerted on a spring 10, which is supported on the bolt 6 at one end and is supported on the bush 1 1 at another end.
  • the punch unit ⁇ 4 has a punch bolt 13 in the form of a ram and a punch 12.
  • the punch bolt 13 lies directly on the punch 12, in particular on a T-shaped punch head 15.
  • the punch bolt 13 and the punch head 15 are arranged in a recess in the upper tool body 2.
  • the part of the punch 12 remaining from the punch head 15 is arranged in the intermediate space and another recess in the lower tool body 3.
  • the lower tool body 3 is used to guide the punching units 4, in particular the punch 12 during a punching process.
  • each of the punching units 4 of the punching tool 1 is identical, as previously described, ⁇ .
  • the lower tool body 3 has a bottom plate 1 6 at the end facing away from the upper tool body 2.
  • the base plate 1 6 has ⁇ receptacles, in each of which a wiper 1 7 is arranged ⁇ .
  • the scraper 17 is used to guide the punch unit ⁇ 4, in particular the punch 12.
  • the scraper 1 7 prevents the workpiece that is not shown in the figures from being pressed together with the punch unit ⁇ 4, in particular with the punch 12, during a punching operation Return the punch unit ⁇ 4 to a starting position ⁇ .
  • the scraper 1 7 prevents contaminants from remaining on the punch 12 and thus entering the punch 1.
  • FIG. 2 shows a perspective view of the punching tool 1 shown in FIG. 1.
  • the upper tool body 2 and the lower tool body 3 each have an essentially round shape in cross section.
  • the punching tool 1 has six punching units 4, which are designed in the turret design. This means ⁇ that the individual punching units 4 are spaced apart ⁇ arranged along a circular line ⁇ .
  • the Sfanzneifen 4 are eccentric, ie at a radial distance from the central axis M of the Sfanztechnikmaschines 1, ⁇ .
  • the guide axis 5 is arranged in the area enclosed by the circular line ⁇ .
  • the punch 1 has a plurality of bolts 6, which are arranged at a distance from one another along the circumference of the upper tool body 2 and / or the lower tool body 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Punching Or Piercing (AREA)

Abstract

L'invention concerne un outil de poinçonnage pourvu d'un corps supérieur, d'un corps inférieur disposé à distance du corps supérieur, d'au moins une unité de poinçonnage et d'un axe de guidage disposé au centre, qui s'étend en partie à travers le corps supérieur et le corps inférieur de l'outil, le corps supérieur de l'outil étant mobile par rapport au corps inférieur de l'outil et l'axe de guidage guidant le mouvement du corps supérieur de l'outil.
EP19804630.2A 2018-10-22 2019-10-22 Outil de poinçonnage pourvu d'un corps supérieur et d'un corps inférieur disposé à distance du corps supérieur Withdrawn EP3870415A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102018126195 2018-10-22
DE102019110164.6A DE102019110164A1 (de) 2018-10-22 2019-04-17 Stanzwerkzeug mit einem Werkzeugoberkörper und einem vom Werkzeugoberkörper beabstandet angeordneten Werkzeugunterkörper
PCT/EP2019/078645 WO2020083864A1 (fr) 2018-10-22 2019-10-22 Outil de poinçonnage pourvu d'un corps supérieur et d'un corps inférieur disposé à distance du corps supérieur

Publications (1)

Publication Number Publication Date
EP3870415A1 true EP3870415A1 (fr) 2021-09-01

Family

ID=70468684

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19804630.2A Withdrawn EP3870415A1 (fr) 2018-10-22 2019-10-22 Outil de poinçonnage pourvu d'un corps supérieur et d'un corps inférieur disposé à distance du corps supérieur

Country Status (2)

Country Link
EP (1) EP3870415A1 (fr)
DE (1) DE102019110164A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5048385A (en) * 1989-12-28 1991-09-17 Strippit, Inc. Indexable multi-tool for punch press
US8042374B2 (en) * 2006-04-07 2011-10-25 Wilson Tool International Inc. Multi-tool technology
DE102011087084A1 (de) * 2011-11-25 2013-05-29 Pass Stanztechnik Ag Mehrfachwerkzeug
DE102015219416B3 (de) * 2015-10-07 2017-03-02 Pass Stanztechnik Ag Mehrfachwerkzeug für eine Stanzvorrichtung und Stanzvorrichtung mit einem entsprechenden Mehrfachwerkzeug
DE102017203943B4 (de) * 2016-03-14 2020-10-29 Richard Bergner Verbindungstechnik Gmbh & Co. Kg Setzeinheit und Verfahren zum Setzen eines Verbindungselements an einem Werkstück
DE102017215422A1 (de) * 2017-09-04 2019-03-07 Pass Stanztechnik Ag Mehrfachwerkzeug

Also Published As

Publication number Publication date
DE102019110164A1 (de) 2020-04-23

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