EP2408577B1 - Umformwerkzeug, insbesondere knetwerkzeug - Google Patents

Umformwerkzeug, insbesondere knetwerkzeug Download PDF

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Publication number
EP2408577B1
EP2408577B1 EP10713307A EP10713307A EP2408577B1 EP 2408577 B1 EP2408577 B1 EP 2408577B1 EP 10713307 A EP10713307 A EP 10713307A EP 10713307 A EP10713307 A EP 10713307A EP 2408577 B1 EP2408577 B1 EP 2408577B1
Authority
EP
European Patent Office
Prior art keywords
forming
forming tool
surface structure
inclination
recess
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.)
Revoked
Application number
EP10713307A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2408577A1 (de
Inventor
Fritz Binhack
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.)
Felss Systems GmbH
Original Assignee
Felss 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=42244541&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2408577(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE202009003703U external-priority patent/DE202009003703U1/de
Priority claimed from DE200910013435 external-priority patent/DE102009013435B4/de
Application filed by Felss GmbH filed Critical Felss GmbH
Priority to PL10713307T priority Critical patent/PL2408577T3/pl
Publication of EP2408577A1 publication Critical patent/EP2408577A1/de
Application granted granted Critical
Publication of EP2408577B1 publication Critical patent/EP2408577B1/de
Revoked 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
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/02—Special design or construction
    • B21J7/14—Forging machines working with several hammers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/02—Special design or construction
    • B21J7/14—Forging machines working with several hammers
    • B21J7/145—Forging machines working with several hammers the hammers being driven by a rotating annular driving member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/02—Dies or mountings therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/02—Special design or construction
    • B21J7/18—Forging machines working with die jaws, e.g. pivoted, movable laterally of the forging or pressing direction, e.g. for swaging

Definitions

  • the invention relates to a forming tool, in particular kneading tool, which has a base body, in which at least one forming element is arranged, which extends inclined at a first angle of inclination to a central axis of the forming tool, whereby an inlet slope of the forming element is fixed.
  • Such a forming tool is from the DE 103 28 052 B4 the applicant and is used for forming, in particular for rotary kneading, of workpieces in a forming machine.
  • Umformtechnikmaschines formed in the so-called feed process as well as the so-called piercing - depending on the first inclination angle of the forming element of the forming tool, which acts on the workpiece in the radial direction - significant forces acting on the workpiece in the axial direction forces.
  • These can disadvantageously lead to damage images on the workpiece, which are in the form of bulges or buckling.
  • the axial force caused by the forming tools adversely affects both the forming machine and the feed system for the workpiece and the clamping device holding the workpiece, since the axial forces generated during the forming process must be compensated by these devices by the aforementioned means.
  • To counteract these axial forces is in the DE 103 28 052 B4 provided that on the surface of the forming of the forming a raised, relief-like and wavy surface structure is provided, which has a plurality of elevations.
  • a forming tool is provided, which is characterized in that the machined with this forming workpieces are characterized by a high surface quality of the machined area.
  • a recessed surface structure is formed in the surface of the obliquely extending under the first tilting forming element, which has at least one recess with a sloping edge, and that the falling edge of this depression, based on the by the first Slope angle defined inlet slope of the reforming element has a second inclination angle, which is oriented opposite to the first inclination angle and whose absolute value is greater than or equal to the absolute value of the first inclination angle.
  • the falling edge is more inclined than the forming element and opposite to its inclination is oriented. This causes the falling edges of the recesses receive an axial force component when hitting radial forming forces on the workpiece, so that the forces acting on the feed device of the forming, caused by the machining process axial forces are reduced.
  • An advantageous development of the invention provides that at least one depression, but preferably all depressions of the surface structure introduced into the surface of the deformation element, are arranged orthogonally or substantially orthogonally to its longitudinal extent.
  • a further advantageous development of the invention provides that at least two depressions of the surface structure of the forming element of the forming tool according to the invention parallel or substantially parallel to each other run.
  • Such a measure in turn has advantages in view of a low torsional load of the workpiece to be machined by the invention, in particular when provided according to a further advantageous embodiment of the invention that at least two recesses of the surface structure of at least one Umformelements a substantially rectilinear course have.
  • a further advantageous embodiment of the invention provides that at least two recesses of the surface structure of the forming tool according to the invention are arranged obliquely to the longitudinal extension of the forming element.
  • a greater torsional load is exerted on the workpiece by the forming tool according to the invention, as is the case with recesses arranged orthogonally to the longitudinal extent of the forming element and thus to the feed direction of the workpiece.
  • the oblique arrangement of the recesses of the surface structure has the advantage that in workpieces in which the torsional load occurring is not disturbing, thereby further reducing the force acting on the feed device and thus opposite to the feed direction of the forming axial forces is achieved.
  • FIG. 4 is now a generally designated 1 round kneading head of a rotary swaging machine, so a tool head of a forming machine, shown, which is known to have a kneading shaft 2 with - in the case shown here - four radially movable kneading modules.
  • Each kneading module has a Knetst Congressel 10 which has at its radially outer end a drain path 4, which are acted upon by mounted in a roller cage 5 pressure rollers 6 periodically by the Knetwelle 2 and / or the roller cage 5 via a Au- ⁇ enring 7 rotationally driven become.
  • the pressure rollers 6 are based here on the outer ring 7.
  • the kneading modules have, in addition to the kneading tappet 10, a compensating plate 11 and in each case the forming tool 12. Such a swaging head 1 is known per se and therefore need not be described in detail.
  • the forming tool 12 can be seen - a arranged in a base body 12 'of the forming tool 12 has Umformelement 21 which is arranged at a defined first inclination angle ⁇ 1 to the central axis M of the forming tool 12 and thus to the feed direction of the workpiece. Also, such a trained forming tool 12 is known per se and therefore need not be described in detail. It is only to be understood that the radial forming force generated by the forming tool, due to the oblique arrangement of the forming elements 21, causes a force acting in the axial direction of the workpiece which loads the workpiece and is fed by a feed device (not shown) ) of the forming machine, through which the workpiece is advanced during the forming process, must be compensated.
  • FIG. 3 now shows a cross section through the in FIG. 2 It can be seen surface 21 'of the forming element 21 of the forming tool 12 and further, that the surface structure 22 is not - as in the above-mentioned known forming tool - on the surface 21 'attached, so executed sublime. Rather, it is provided that the recesses 23 are introduced into the surface 21 'of the forming element 21.
  • the inlet bevel S of the deformation element 21, ie the first inclination angle, ⁇ 1 10 °, relative to the central axis M of the tool.
  • Each of the recesses 23 has a falling edge 23a and a rising edge 23b, wherein - as also out FIG.
  • the sloping flanks 23a of the recesses 23 thus form a kind of abutment for these axial forces and guide them into the forming tool 12:
  • the areas of material of the workpiece lying above the recesses 23 yield, so that then the falling edges 23a of the recesses 23 act on the workpiece in the feed direction.
  • FIG. 3 shown wavy course of the surface structure 22 is not mandatory. It is Z. B. also possible to form the recesses 23 sawtooth, in which case the rectilinear sloping edge 23a of such a sawtooth partially absorbs the axial forces.
  • the surface structure 22 at least one, in practice, however, a plurality of recesses 23, which are preferably parallel or substantially parallel to each other and - again preferably - arranged substantially orthogonal to the longitudinal direction of the forming tool 12 and thus to the feed direction V of the workpiece are. But it is also possible that at least one of the recesses 23 is not - as shown in the figures - orthogonal to the longitudinal direction of the forming tool 12 is arranged to extend, but extends obliquely thereto at a defined angle.
  • a forming tool 12 is provided, which is characterized in that a significant reduction of on the workpiece and / or the feed device of the forming machine acting axial forces can be achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
EP10713307A 2009-03-18 2010-03-18 Umformwerkzeug, insbesondere knetwerkzeug Revoked EP2408577B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10713307T PL2408577T3 (pl) 2009-03-18 2010-03-18 Narzędzie do obróbki plastycznej, w szczególności narzędzie do kucia

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202009003703U DE202009003703U1 (de) 2009-03-18 2009-03-18 Umformwerkzeug, insbesondere Knetwerkzeug
DE200910013435 DE102009013435B4 (de) 2009-03-18 2009-03-18 Knetwerkzeug
PCT/EP2010/001700 WO2010105826A1 (de) 2009-03-18 2010-03-18 Umformwerkzeug, insbesondere knetwerkzeug

Publications (2)

Publication Number Publication Date
EP2408577A1 EP2408577A1 (de) 2012-01-25
EP2408577B1 true EP2408577B1 (de) 2012-12-12

Family

ID=42244541

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10713307A Revoked EP2408577B1 (de) 2009-03-18 2010-03-18 Umformwerkzeug, insbesondere knetwerkzeug

Country Status (9)

Country Link
US (1) US20120060577A1 (zh)
EP (1) EP2408577B1 (zh)
JP (1) JP2012520772A (zh)
KR (1) KR20120004453A (zh)
CN (1) CN102413959B (zh)
AU (1) AU2010225136A1 (zh)
DK (1) DK2408577T3 (zh)
PL (1) PL2408577T3 (zh)
WO (1) WO2010105826A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6340293B2 (ja) * 2014-09-11 2018-06-06 株式会社三五 中空品の製造方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1430974A (en) * 1920-07-19 1922-10-03 Frick William Swaging machine
US3672203A (en) * 1971-02-08 1972-06-27 Marvin R Anderson Tooth forming tool
JPS5214759Y2 (zh) * 1972-09-29 1977-04-02
DE2854510A1 (de) * 1978-12-16 1980-06-26 Kabel Metallwerke Ghh Schraegwalzwerk zum reduzieren von langgestrecktem gut
US4362045A (en) * 1980-10-10 1982-12-07 Ex-Cell-O Corporation Tooth forming tools
JPH0790318B2 (ja) * 1987-04-30 1995-10-04 石川島播磨重工業株式会社 幅圧下プレスの金型
JP2557704Y2 (ja) * 1991-06-10 1997-12-17 住友金属工業株式会社 スラブの幅圧下プレス用金型
CN1135385A (zh) * 1995-03-31 1996-11-13 吉田桂一郎 高速生产用锻细机与锻细加工方法
DE19742819C2 (de) * 1997-09-27 1999-08-19 Felss Geb Vorschubeinrichtung für eine Umformungsvorrichtung, insbesondere eine Kaltumformungsvorrichtung wie eine Rundknetvorrichtung
JP2003126938A (ja) * 2001-10-22 2003-05-08 Sango Co Ltd ロータリースウェージング加工装置とそのダイス
DE10328052B4 (de) * 2003-06-23 2006-08-24 Felss Gmbh Umformwerkzeug, insbesondere Knetwerkzeug
DE20309632U1 (de) * 2003-06-23 2003-09-18 Felss GmbH, 75203 Königsbach-Stein Umformwerkzeug, insbesondere Knetwerkzeug
US7814630B2 (en) * 2006-11-17 2010-10-19 Ethicon, Inc. Apparatus and method for swaging needles

Also Published As

Publication number Publication date
CN102413959A (zh) 2012-04-11
DK2408577T3 (da) 2013-03-18
AU2010225136A1 (en) 2011-11-10
CN102413959B (zh) 2014-03-12
EP2408577A1 (de) 2012-01-25
US20120060577A1 (en) 2012-03-15
PL2408577T3 (pl) 2013-08-30
KR20120004453A (ko) 2012-01-12
WO2010105826A1 (de) 2010-09-23
JP2012520772A (ja) 2012-09-10

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