EP1017519B1 - Vorschubeinrichtung für eine umformungsvorrichtung, insbesondere eine kaltumformungsvorrichtung wie eine rundknetvorrichtung - Google Patents
Vorschubeinrichtung für eine umformungsvorrichtung, insbesondere eine kaltumformungsvorrichtung wie eine rundknetvorrichtung Download PDFInfo
- Publication number
- EP1017519B1 EP1017519B1 EP98958222A EP98958222A EP1017519B1 EP 1017519 B1 EP1017519 B1 EP 1017519B1 EP 98958222 A EP98958222 A EP 98958222A EP 98958222 A EP98958222 A EP 98958222A EP 1017519 B1 EP1017519 B1 EP 1017519B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- feed
- workpiece
- tool segments
- tool
- unit
- 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.)
- Expired - Lifetime
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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
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/08—Accessories for handling work or tools
-
- 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
- B21J13/08—Accessories for handling work or tools
- B21J13/10—Manipulators
-
- 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
Definitions
- the invention relates to a forming device, in particular a cold forming device like a rotary kneading device that has a feed device, through which a workpiece to be machined can be moved by a reducing device is, wherein the reducing device acting on the workpiece Has tool segments that periodically with an operating frequency of one Closed position in which the tool segments are in active engagement with the workpiece to be machined are movable into an open position, the one Has sensor unit through which the position of the tool segments of the reducing device is detectable, the sensor unit being the position of the tool segments characterizing sensor signal that generates a Evaluation unit is conductive, the evaluation unit depending on the your supplied sensor signal a control signal controlling the feed device generated, the feed device controllable in this way by the control signal is that with the closed position of the tool segments a minimal Feed and a maximum when the tool segments are open Feed can be generated.
- Such a shaping device is known from US Pat. No. 3,447,349.
- a press that has a stationary anvil and a tool segment movable towards and away from the anvil and has a feed device which can move towards this shaping device, around parts of the workpiece to be machined between the anvil and to move the tool segment, the feed device one for Press sliding carriage and means for holding the workpiece are arranged on the carriage.
- the known shaping device Means by which this workpiece holder is relative are movable to the car. By a trained as a pressure sensitive switch The position of the tool segment can be detected by the sensor unit.
- This pressure-sensitive switch then generates the position of the tool segment characterizing sensor signal, which is sent to an evaluation unit, the generates a control signal for the feed device, such that the the carriage carrying the tool holder is constantly moving forward, and that at one A corresponding movement of the tool segment in the closed position of the workpiece holder compensates for the forward movement of the carriage becomes.
- a Method for feeding a workpiece through such a forming device be created, in which an operating frequency-adapted feed is guaranteed.
- the reducing device a reducing head through which the workpiece is fed from the feed device is movable, and the one tool guide in the tool segments radially are slidably mounted, and a roller cage with rollers through which the Tool segments are radially displaceable, and that the sensor unit in a defined position with respect to the tool segments on the tool guide is arranged, the roller cage of the reducing head by one given by the direction of advance of the workpiece with a first axis Angular velocity and the tool guide with one of the first Angular velocity different second angular velocity moves is, whereby it can be determined by the sensor unit whether there is a role in its Detection area is located.
- the measures according to the invention are advantageous a matched to the operating frequency of the tool segments of the reducing device Feed of the workpiece is achieved, which is not only reduced in one Loads on the tool segments and / or the workpiece, but also an overall faster feed speed and thus accelerating the forming process.
- Advantage The way the power generating the feed movement of the invention Feed unit withdrawn while the tool segments the reducing device in its closed position which acts on the workpiece are.
- the feed device according to the invention the feed of the workpiece to be machined increases, thus an optimal insertion path with a maximum working stroke of the tool segments is achieved.
- FIG. 1 The exemplary embodiment of a forming device 1 shown in FIG. 1 for forming, in particular for cold forming, a workpiece 2 essentially from a known per se and therefore only hereinafter reducing device 20 described in extracts with a reducing head 21, in particular a round kneading head and a feed of the workpiece 2 effecting feed device 10 with an actual feed movement of the workpiece 2 causing the feed element 11.
- the reducing head 21 a number - in the exemplary embodiment shown here four - tool segments 22a-22d to achieve the desired deformation of the workpiece 2 Periodically apply this force to the tool segments 22a-22d with their operating frequency from their closed position shown in FIG. 2, in which they are in active engagement with the workpiece 2, in one in FIG. 3 shown open position are moved, in the active engagement of the tool segments 22a-22d is lifted with the workpiece 2 and the workpiece 2 is pushed further by the feed device 10.
- the position of the tool segments is monitored 22a-22d characterizing sensor signal S generated that to one of this sensor signal S evaluating evaluation unit 40 is directed, and that on the other hand the feed device 10 is designed such that the feed movement generated by it of the workpiece 2 at least between a minimum and A maximum feed movement can be controlled:
- the evaluation unit 40 generates depending on the sensor signal S fed to it, the feed element 11 of the feed device 10 controlling control signal V. This causes. that with an active intervention of the tool segments 22a-22d. aiso in the Rule at their closed position, the feed element 11 a minimal Feed of the workpiece 2 is generated, which is preferably zero.
- the feed rate or energy can be greater when the tool segments 22a-22d are open than when closed tool segments 22a-22d, as with closed tool segments 22a-22d the wear-generating large feed energy is not effective is.
- the immediate position is not of the tool segments 22a-22d of the reducing head 21 of the forming device 1, but the position and / or function of the displacement movement of the Tool segments 22a-22d effecting further components of the shaping device 1 is detected.
- Such indirect detection is in the figures 2 and 3, in which a view of the reducing head 21 in the feed direction of the workpiece 2 is shown.
- This reducing head 21 points in in a manner known per se, a roller cage 21 a, in which a variety of rollers 23 is arranged, and a tool guide 21b, in which the Tool segments 22a-22d are guided displaceably in the radial direction.
- roller cage 21a of the reducing head 21 by one by the feed direction of the workpiece 2 predetermined axis A with an angular velocity is moved, which depends on the angular velocity of the tool guide 21b differs, it is caused in the position shown in Figure 2 Tappets 22a'-22d 'of the tool segments 22a-22d each from a roller 23 acted upon and thus moved into their closed position in which the radially inner ends forming the actual tools 22a "-22d" apply force to the workpiece 2 to achieve the desired forming.
- the active engagement becomes between the tool segments 22a-22d and the previously assigned roller 23 of the roller cage 21a of the reducing head 21 lifted so that the tool segments 22a-22d in the space between two rollers 23 back away, causing the tool segments 22a-22d to move away from the workpiece 2 and release it in such a way that the workpiece 2 around the now machined area can be moved forward.
- the sensor unit 30 is arranged by which can be determined whether there is a roller 23 in its detection area or not, may be due to the defined spatial relationship between the sensor unit 30 and the tool segments 22a-22d from the evaluation unit 40 are calculated whether the tool segments 22a-22d are currently in their active position are or not, and the feed of the workpiece 2 can then accordingly to be controlled.
- FIG. 4 another embodiment of a feed device is together shown with a reducing device of a cold forming device, which essentially corresponds to the first exemplary embodiment in FIG. 1, so that corresponding parts with the same reference numerals provided and are no longer described in detail.
- a feed device 10 includes a slide 12 having in and / or against the feed device of the workpiece 2 is displaceable and carries the feed element 11, so that the working frequency adapted Feeding the workpiece 2 through an interaction of the feed element 11 and the carriage 12 can be generated.
- the feed element 11 and thus the workpiece 2 is moved continuously in the direction of the tool segments 22a-22d at a speed v 1 , while the slide 12 moves at a speed v 2 towards the tool segments 22a-22d or moved away that the feed movement of the workpiece 2 to be achieved, adapted to the working frequency, is formed.
- the maximum feed speed v m of the workpiece 2 in the direction of the tool segments 22a-22d which can be achieved during the open position of the tool segments 22a-22d, is achieved in that the feed element 11 moves the workpiece 2 at the speed v 1 , which is 50% of the maximum feed speed v m , and that at the same time the carriage 12 moves at a speed of v 2 , which in turn is 50% of the maximum feed speed v m , in the direction of the tool segments 22a-22d, so that the superposition of these two speeds v 1 + v 2 of 50% of the maximum feed speeds v m sets this.
- the feed element can also be used 11 carrying carriage 12 or alternatively, that the reducing device 20 is arranged on a further slide 13, which is functional is to be assigned to the feed device 10.
- the carriage 13 takes over the function of the carriage 12 and produced in cooperation with the workpiece 2 in substantially continuously advancing feed element 11 the generation of the feed frequency adapted to the working frequency.
- both the carriage 12 and the carriage 13 used so the relative movement of the two carriages 12, 13 on one another in this way matched that in connection with the feed movement of the feed element 11 sets the feed rate to be adjusted to the working frequency.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Automatic Control Of Machine Tools (AREA)
- Press Drives And Press Lines (AREA)
Description
- Figur 1
- ein Ausführungsbeispiel einer Vorschubeinrichtung zusammen mit einer Reduziereinrichtung einer Kaltumformungsvorrichtung,
- Figur 2
- eine schematische Ansicht der Reduziereinrichtung aus der Richtung II der Figur 1,
- Figur 3
- eine schematische Ansicht der Reduziereinrichtung aus der Richtung III der Figur 1,
- und Figur 4
- ein weiteres Ausführungsbeispiel einer Vorschubeinrichtung.
Claims (9)
- Umformungsvorrichtung, insbesondere eine Kaltumformungsvorrichtung wie eine Rundknetvorrichtung, die eine Vorschubeinrichtung, durch die ein zu bearbeitendes Werkstück (2) durch eine Reduziereinrichtung (20) bewegbar ist, aufweist, wobei die Reduziereinrichtung (20) auf das Werkstück (2) einwirkende Werkzeugsegmente (22a-22d) aufweist, die mit einer Arbeitsfrequenz periodisch von einer Geschlossen-Stellung, in der die Werkzeugsegmente (22a-22d) in Wirkeingriff mit dem zu bearbeitenden Werkstück (2) sind, in eine Offen-Stellung bewegbar sind, die eine Sensoreinheit (30) besitzt, durch die die Position der Werkzeugsegmente (22a-22d) der Reduziereinrichtung (20) erfaßbar ist, wobei die Sensoreinheit (30) ein die Position der Werkzeugsegmente (22a-22d) charakterisierendes Sensorsignal (S) erzeugt, das zu einer Auswerteeinheit (40) leitbar ist, wobei die Auswerteeinheit (40) in Abhängigkeit von dem ihr zugeführten Sensorsignal (S) ein die Vorschubeinrichtung (10) steuerndes Steuersignal (V) erzeugt, wobei die Vorschubeinrichtung (10) durch das Steuersignal (V) derart steuerbar ist, daß bei der Geschlossen-Stellung der Werkzeugsegmente (22a-22d) ein minimaler Vorschub und bei der Offen-Stellung der Werkzeugsegmente (22a-22d) ein maximaler Vorschub erzeugbar ist, dadurch gekennzeichnet, daß die Reduziereinrichtung (20) einen Reduzierkopf (21), durch den das Werkstück (2) von der Vorschubeinrichtung bewegbar ist, und der eine Werkzeugführung (21b), in der Werkzeugsegmente (22a-22d) radial verschieblich gelagert sind, und einen Rollenkäfig (21 a) mit Rollen (23), durch welche die Werkzeugsegmente (22a-22d) radial verschiebbar sind, aufweist, und daß die Sensoreinheit (30) in einer definierten Position bezüglich der Werkzeugsegmente (22a-22d) auf der Werkzeugführung (21 b) angeordnet ist, wobei der Rollenkäfig (21a) des Reduzierkopfes (21) um eine durch die Vorschubrichtung des Werkstücks (2) vorgegebene Achse (A) mit einer ersten Winkelgeschwindigkeit und die Werkzeugführung (21 b) mit einer von der ersten Winkelgeschwindigkeit unterschiedlichen zweiten Winkelgeschwindigkeit bewegbar sind, wobei durch die Sensoreinheit (30) feststellbar ist, ob sich eine Rolle (23) in ihrem Detektionsbereich befindet.
- Umformvorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Sensoreinheit (30) einen Piezo-Kraftmeßring, einen Dehnmeßstreifen, einen axialen Kraftmesser oder ein photoelektrisches Element aufweist.
- Umformvorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Vorschubeinheit (10) ein Vorschubelement (11) aufweist.
- Umformvorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Vorschubeinrichtung (10) einen das Vorschubelement (11) tragenden, in und/oder entgegen der Vorschubrichtung des Werkstücks (2) verschiebbaren Schlitten (12) aufweist.
- Umformvorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß ein die Reduziereinrichtung (20) tragender, in und/oder entgegen der Vorschubrichtung des Werkstücks (2) verschiebbarer weiterer Schlitten (13) vorgesehen ist.
- Verfahren zum Vorschub eines Werkstücks (2) durch eine Umformungsvorrichtung, insbesondere eine Kaltumformungsvorrichtung (1), bei dem das zu bearbeitende Werkstück (2) von einer Vorschubeinrichtung (10) durch eine Reduziereinrichtung (20) bewegt wird, bei dem das Werkstück (2) von auf dieses einwirkenden Werkzeugsegmenten (22a-22d) bearbeitet wird, bei dem die Werkzeugsegmente (22a-22d) der Reduziereinrichtung (20) mit einer Arbeitsfrequenz periodisch von einer Geschlossen-Stellung, in der die Werkzeugsegmente (22a-22d) in Wirkeingriff mit dem zu bearbeitenden Werkstück (2) sind, in eine Offen-Stellung bewegt werden, bei dem die Position der Werkzeugsegmente (22a-22d) von einer Sensoreinheit (30) erfaßt und durch die Sensoreinheit (30) ein die Position der Werkzeugsegmente (22a-22d) charakterisierendes Sensorsignal (S) erzeugt wird, wobei dieses Sensorsignal (S) zu einer Auswerteeinheit (40) geleitet wird, und die Auswerteeinheit (40) in Abhängigkeit von dem ihr zugeführten Sensorsignal (S) ein die Vorschubeinrichtung (10) steuerndes Steuersignal (V) erzeugt, derart, daß die Vorschubeinrichtung (10) bei einer Geschlossen-Stellung der Werkzeugsegmente (22a-22d) des Werkstücks (2) minimal und bei der Offen-Stellung der Werkzeugsegmente (22a-22d) maximal vorschiebt, dadurch gekennzeichnet, daß eine Reduziereinrichtung (20) mit einem Reduzierkopf (21) verwendet wird, durch den das Werkstück (2) von der Vorschubeinrichtung bewegt wird und bei dem in einer Werkzeugführung (21 b) des Reduzierkopfes (21) Werkzeugsegmente (22a-22d) radial verschieblich gelagert sind, und bei dem ein Rollenkäfig (21a) mit Rollen (23), durch die die Werkzeugsegmente (22a-22d) radial verschiebbar sind, verwendet wird, wobei der Rollenkäfig (21a) mit einer ersten Winkelgeschwindigkeit und die Werkzeugführung (21b) mit einer von der ersten Winkelgeschwindigkeit unterschiedlichen zweiten Winkelgeschwindigkeit bewegt wird, und daß durch die Sensoreinheit (30) festgestellt wird, ob sich eine die Werkzeugsegmente (22a-22d) beaufschlagende Rolle (23) in ihrem Detektionsbereich befindet.
- Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß in der Geschlossen-Stellung der Werkzeugsegmente (22a-22d) kein Vorschub des Werkstücks (2) durchgeführt wird.
- Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß das Werkstück (2) durch ein Vorschubelement (11) der Vorschubeinrichtung (10) zu Erzielung des arbeitsfrequenzangepaßten Vorschubs bewegt wird.
- Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß das Werkstück (2) durch das Vorschubelement (11) sowie durch einen das Vorschubelement (11) tragenden Schlitten (12) und/oder die Reduziereinrichtung (20) durch einen sie tragenden weiteren Schlitten (13) bewegt wird.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742819 | 1997-09-27 | ||
DE1997142819 DE19742819C2 (de) | 1997-09-27 | 1997-09-27 | Vorschubeinrichtung für eine Umformungsvorrichtung, insbesondere eine Kaltumformungsvorrichtung wie eine Rundknetvorrichtung |
PCT/EP1998/006121 WO1999016563A1 (de) | 1997-09-27 | 1998-09-26 | Vorschubeinrichtung für eine umformungsvorrichtung, insbesondere eine kaltumformungsvorrichtung wie eine rundknetvorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1017519A1 EP1017519A1 (de) | 2000-07-12 |
EP1017519B1 true EP1017519B1 (de) | 2002-05-08 |
Family
ID=7843901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98958222A Expired - Lifetime EP1017519B1 (de) | 1997-09-27 | 1998-09-26 | Vorschubeinrichtung für eine umformungsvorrichtung, insbesondere eine kaltumformungsvorrichtung wie eine rundknetvorrichtung |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1017519B1 (de) |
DE (1) | DE19742819C2 (de) |
ES (1) | ES2177096T3 (de) |
WO (1) | WO1999016563A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2408577B1 (de) * | 2009-03-18 | 2012-12-12 | Felss GmbH | Umformwerkzeug, insbesondere knetwerkzeug |
CN112642980B (zh) * | 2020-12-28 | 2022-07-05 | 柳州市荆大汽车制动管制造有限公司 | 一种全自动冷镦头机 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2966139A (en) * | 1959-03-09 | 1960-12-27 | Appel Process Ltd | Hydraulic feed means |
US3447349A (en) * | 1965-08-02 | 1969-06-03 | Paul Lippke | Method of and system for operating a high-speed forging press |
GB1317302A (en) * | 1970-09-03 | 1973-05-16 | Davy & United Eng Co Ltd | Forging control |
DE3376530D1 (en) * | 1982-12-01 | 1988-06-16 | Hitachi Ltd | Press apparatus for reducing slab width |
DE29717173U1 (de) * | 1997-09-27 | 1998-02-19 | Gebr. Felss GmbH + Co KG, 75203 Königsbach-Stein | Vorschubeinrichtung für eine Umformungsvorrichtung, insbesondere eine Kaltumformungsvorrichtung wie eine Rundknetvorrichtung |
-
1997
- 1997-09-27 DE DE1997142819 patent/DE19742819C2/de not_active Expired - Fee Related
-
1998
- 1998-09-26 WO PCT/EP1998/006121 patent/WO1999016563A1/de active IP Right Grant
- 1998-09-26 EP EP98958222A patent/EP1017519B1/de not_active Expired - Lifetime
- 1998-09-26 ES ES98958222T patent/ES2177096T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1017519A1 (de) | 2000-07-12 |
ES2177096T3 (es) | 2002-12-01 |
WO1999016563A1 (de) | 1999-04-08 |
DE19742819C2 (de) | 1999-08-19 |
DE19742819A1 (de) | 1999-04-15 |
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