EP2408577A1 - Umformwerkzeug, insbesondere knetwerkzeug - Google Patents
Umformwerkzeug, insbesondere knetwerkzeugInfo
- Publication number
- EP2408577A1 EP2408577A1 EP10713307A EP10713307A EP2408577A1 EP 2408577 A1 EP2408577 A1 EP 2408577A1 EP 10713307 A EP10713307 A EP 10713307A EP 10713307 A EP10713307 A EP 10713307A EP 2408577 A1 EP2408577 A1 EP 2408577A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- forming
- forming tool
- tool
- surface structure
- 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.)
- Granted
Links
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
- Forming tool in particular kneading tool
- 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 known from DE 103 28 052 B4 of the Applicant and is used for forming, in particular for rotary kneading, of workpieces in a forming machine.
- Forming known forming process occur 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.
- These can disadvantageously lead to damage images on the workpiece, which are in the form of bulges or buckling.
- DE 103 28 052 B4 provides that a raised, relief-like and undulating surface structure is provided on the surface of the forming element of the forming tool, 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 an angle of the Umformelements, a second inclination angle, which is oriented opposite to the first inclination angle and its absolute value is greater than or equal to the absolute amount of the first inclination angle.
- the inventive measures is achieved in an advantageous manner that in the surface of the Umformelements at least one, but preferably a plurality of depressions are arranged, the falling edge is more inclined than the forming element and opposite to its inclination is oriented.
- the falling flanks of the recesses receive an axial force component when radial deformation forces impinge upon the workpiece, so that the axial forces acting on the feed device of the forming machine and caused by the machining process 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 orthogonal to its longitudinal extent.
- 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 than is the case with depressions arranged orthogonally to the longitudinal extension of the shaping 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. 1 a front view of the exemplary embodiment
- Figure 2 a longitudinal section through the forming tool of Figure 1 along the line M-Il 3 shows a schematic representation of the surface structure
- FIG. 4 shows a schematic representation of a tool head of a rotary swaging machine with the forming tool of FIGS. 1 to 3.
- the round kneading head is a rotary kneading machine, that is to say a tool head of a forming machine, which, as is known, has a kneading shaft 2 with - in the case shown here - four radially displaceable kneading modules.
- Each kneading module has a kneading tappet 10, which has a discharge path 4 at its radially outer end, which are acted upon periodically by pressure rollers 6 mounted in a roller cage 5, by rotationally driving the kneading shaft 2 and / or the roller cage 5 via an outer ring 7 become.
- the pressure rollers 6 are based here on the outer ring 7.
- the kneading modules also have a compensating plate 11 and in each case the forming tool 12.
- Such a swaging head 1 is known per se and therefore does not need to be described in any more detail.
- a region reduced from the starting diameter by the forming and between the first and second regions Transition region in which the outer diameter of the workpiece continuously increases from the reduced diameter to the initial diameter, that is, an axially extending transition region at the end workpiece is present, is known to proceed such that the Umformmaschine- 2 - as shown in FIG. 2, a forming element 21 arranged in a base body 12 'of the forming tool 12 is arranged at a defined first angle of inclination ⁇ i to the center axis M of the forming tool 12 and thus to the feed direction of the workpiece.
- FIG. 3 now shows a cross section through the surface structure 22 shown in FIG. 2.
- the surface 21 'of the forming element 21 of the forming tool 12 can be seen, and furthermore that the surface structure 22 does not touch the surface, as in the known forming tool explained in the introduction. che 21 'attached, so executed exalted. 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, ⁇ i 10 °, relative to the central axis M of the tool.
- the inclination of the flanks 23a relative to the central axis M thus has the value O 2 - O 1 .
- the inclination of the trailing edges 23a of the recesses 23 is orienta- opposite advantage to the .alpha..sub.i determined by the first inclination angle oblique course of the deforming element 21 and the absolute value of the second inclination angle ⁇ 2 is here therefore greater than that of the first inclination angle .alpha..sub.i of the forming tool 12.
- the sloping flanks 23a of the recesses 23 thus form a kind of abutment for these axial forces and divert them into the forming tool 12:
- the material areas of the workpiece lying above the recesses 23 yield back, so that then the falling edges 23a of the recesses 23 act on the workpiece in the feed direction.
- the surface structure 22 has at least one, but in practice a multiplicity of depressions 23 which are preferably parallel or substantially parallel to one another and - again preferably substantially orthogonal to the longitudinal direction of the forming tool 12 and thus are arranged to the feed direction V of the workpiece. But it is also possible that at least one of the recesses 23 is not - as shown in the figures Ren - 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)
Abstract
Description
Claims
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 true EP2408577A1 (de) | 2012-01-25 |
EP2408577B1 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 (de) |
EP (1) | EP2408577B1 (de) |
JP (1) | JP2012520772A (de) |
KR (1) | KR20120004453A (de) |
CN (1) | CN102413959B (de) |
AU (1) | AU2010225136A1 (de) |
DK (1) | DK2408577T3 (de) |
PL (1) | PL2408577T3 (de) |
WO (1) | WO2010105826A1 (de) |
Families Citing this family (1)
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)
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 (de) * | 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 |
-
2010
- 2010-03-18 EP EP10713307A patent/EP2408577B1/de not_active Revoked
- 2010-03-18 PL PL10713307T patent/PL2408577T3/pl unknown
- 2010-03-18 DK DK10713307.6T patent/DK2408577T3/da active
- 2010-03-18 KR KR1020117024428A patent/KR20120004453A/ko not_active Application Discontinuation
- 2010-03-18 CN CN201080018962.XA patent/CN102413959B/zh not_active Expired - Fee Related
- 2010-03-18 US US13/257,150 patent/US20120060577A1/en not_active Abandoned
- 2010-03-18 AU AU2010225136A patent/AU2010225136A1/en not_active Abandoned
- 2010-03-18 WO PCT/EP2010/001700 patent/WO2010105826A1/de active Application Filing
- 2010-03-18 JP JP2012500145A patent/JP2012520772A/ja active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO2010105826A1 * |
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 |
US20120060577A1 (en) | 2012-03-15 |
PL2408577T3 (pl) | 2013-08-30 |
KR20120004453A (ko) | 2012-01-12 |
EP2408577B1 (de) | 2012-12-12 |
WO2010105826A1 (de) | 2010-09-23 |
JP2012520772A (ja) | 2012-09-10 |
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