EP2373446B1 - Method for operating a hammer - Google Patents
Method for operating a hammer Download PDFInfo
- Publication number
- EP2373446B1 EP2373446B1 EP09799491.7A EP09799491A EP2373446B1 EP 2373446 B1 EP2373446 B1 EP 2373446B1 EP 09799491 A EP09799491 A EP 09799491A EP 2373446 B1 EP2373446 B1 EP 2373446B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- linear motor
- ram
- hammer
- additional acceleration
- depending
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 22
- 230000033001 locomotion Effects 0.000 claims description 23
- 230000001133 acceleration Effects 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 230000001419 dependent effect Effects 0.000 claims description 10
- 230000036962 time dependent Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000003111 delayed effect Effects 0.000 claims 2
- 238000005242 forging Methods 0.000 description 5
- 230000004913 activation Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Images
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
- B21J7/20—Drives for hammers; Transmission means therefor
- B21J7/22—Drives for hammers; Transmission means therefor for power hammers
- B21J7/30—Drives for hammers; Transmission means therefor for power hammers operated by electro-magnets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/42—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by magnetic means, e.g. electromagnetic
Definitions
- the invention provides for the regulation of the brake and / or the retaining device and / or the additional acceleration device to be made as a function of whether the linear motor is switched off or switched off as intended.
- the brake and / or restraint device can make holding or braking of the bear usually with a lower energy consumption compared to the linear motor.
- a position of a linear motor is understood to mean the position in which a primary part of the linear motor is at a secondary part of the linear motor.
- FIG. 2 is shown in a schematic, partially sectioned view another hammer 1.
- This is designed as a counter-impact hammer 17 and comprises two bears 3, 18, which are coupled via a hydraulic 19 with each other in their movement in the direction of arrows y, y '.
- the hydraulic coupling forces the two bears 3, 18 to move in opposite directions.
- the executed as Oberbär Bear 3 carries an upper part 5 of a Schmiedegesenks 6 and executed as a lower bear Bear 18 carries a corresponding lower part 7 of the Schmiedegesenks 6.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Percussive Tools And Related Accessories (AREA)
- Forging (AREA)
- Press Drives And Press Lines (AREA)
- Machine Tool Units (AREA)
Description
Die Erfindung betrifft ein Verfahren zum Betrieb eines Hammers gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a method for operating a hammer according to the preamble of
Aus der
Aus der
Es ist Aufgabe der Erfindung, ein Verfahren zum Betrieb eines Hammers vorzuschlagen, welches es ermöglicht, dessen Linearmotor situationsabhängig zu steuern bzw. zu regeln.It is an object of the invention to provide a method for operating a hammer, which makes it possible to control the linear motor depending on the situation or to regulate.
Diese Aufgabe wird ausgehend von den Merkmalen des Oberbegriffs des Anspruchs 1 durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. In den Unteransprüchen sind vorteilhafte und zweckmäßige Weiterbildungen angegeben.This object is achieved on the basis of the features of the preamble of
Das erfindungsgemäße Verfahren zum Betrieb eines Hammers sieht vor, den Bär von dem Linearmotor vor dem Schlag zu beschleunigen, wobei der Linearmotor von der Regelungseinheit bei der Abwärtsbewegung des Bären vor dem Erreichen des unteren Umkehrpunktes des Bären zeitabhängig und/oder geschwindigkeitsabhängig und/oder wegabhängig kraftfrei geschaltet wird, wobei die Stellung des Linearmotors von der Regelungseinheit bei der weiteren Bewegung des Bären verfolgt und das Feld des Linearmotors invertiert wird und wobei der Linearmotor zur Mitnahme des Bären in dessen Aufwärtsbewegung wieder kraftliefernd geschaltet wird. Mit einem derartigen Verfahren ist es möglich, auch Hämmer mit einer Bärmasse im Tonnenbereich so zu betreiben, dass der Linearmotor bzw. die mit diesem verbundenen Bauteile durch die abrupte Bewegungsumkehr keinen Schaden nehmen bzw. dass die Bewegungsumkehr regelungstechnisch sauber durchführbar ist. Kern der Erfindung ist es den Linearmotor auch dann, wenn sich dieser kraftfrei bewegt zu verfolgen und das Feld frühzeitig zu invertieren, um hierdurch ein ausreichendes Zeitfenster für den Hysteresezyklus zur Verfügung zu stellen.The inventive method for operating a hammer provides to accelerate the bear of the linear motor before the blow, the linear motor of the control unit during the downward movement of the bear before reaching the lower turning point of the bear time-dependent and / or speed-dependent and / or path-dependent force-free is switched, wherein the position of the linear motor is followed by the control unit in the further movement of the bear and the field of the linear motor is inverted and wherein the linear motor is switched to deliver the bear in its upward movement kraftliefernd. With such a method, it is also possible to operate hammers with a barrel mass in the tonne range so that the linear motor or the components connected to it do not suffer any damage due to the abrupt reversal of motion or that the reversal of motion is technically clean. At the heart of the invention is the linear motor, even when it moves without force to follow and to invert the field early, thereby providing a sufficient time window for the hysteresis cycle available.
Insbesondere sieht die Erfindung vor, das Aktivieren bzw. das kraftliefernd Schalten des invertierten Linearmotors, welcher den Bär wieder anhebt, zeitabhängig und/oder geschwindigkeitsabhängig und/oder wegabhängig durchzuführen und/oder einen Zeitpunkt für das Aktivieren bzw. das kraftliefernd Schalten des Linearmotors insbesondere auf der Grundlage gemessener Parameter, welche insbesondere bei vorhergehenden Hammerschlägen gemessenen wurden, durch die Regelungseinheit vorauszuberechnen. Hierdurch ist es möglich, dem Hysteresezyklus ein maximales Zeitfenster zu öffnen und den Linearmotor möglichst frühzeitig kraftfrei zu schalten und möglichst spät im invertierten Zustand für den Rückhub wieder zu aktivieren.In particular, the invention provides, the activation or the kraftliefernd switching the inverted linear motor, which raises the bear again, perform time-dependent and / or speed-dependent and / or path-dependent and / or a time for the activation or the kraftliefernd switching the linear motor in particular the basis of measured parameters, which were measured in particular in previous hammer blows, by the control unit to predict. This makes it possible to open a maximum time window to the hysteresis cycle and to switch the linear motor as early as possible without force and to reactivate it as late as possible in the inverted state for the return stroke.
Weiterhin sieht das erfindungsgemäße Verfahren vor, das Feld des Linearmotors schon vor einem Schlag des Bären auf ein Werkstück zu invertieren. Hierdurch kann der Linearmotor sofort nach dem Schlag mit seiner ganzen Kraft auf den Bär wirken. Dies ist insbesondere dann erforderlich, wenn ein klebender Schlag verhindert werden soll.Furthermore, the inventive method provides to invert the field of the linear motor before a blow of the bear on a workpiece. This allows the linear motor to act on the bear with all its force immediately after the strike. This is especially necessary if an adhesive impact is to be prevented.
Weiterhin sieht das erfindungsgemäße Verfahren vor, das Feld des Linearmotors erst nach einem Schlag des Bären auf ein Werkstück zu invertieren. Hierdurch kann bei einem vorhersehbaren starken Rückprall ein größeres Zeitfenster genutzt werden, da der zurückspringende Bär von dem Linearmotor aus einer bereits leicht angehobenen Stellung mitgenommen wird.Furthermore, the method according to the invention provides to invert the field of the linear motor only after a stroke of the bear on a workpiece. This can be used in a predictable strong rebound a larger window of opportunity, since the recessed bear is taken from the linear motor from an already slightly raised position.
Das erfindungsgemäße Verfahren zum Betrieb eines Hammers sieht insbesondere auch vor, eine Brems- und /oder eine Rückhalteeinrichtung und/oder eine Zusatzbeschleunigungseinrichtung durch die Regelungseinheit in Abhängigkeit von einem Ergebnis, mit welchem der Linearmotor auf den Bär wirkt, und/oder in Abhängigkeit von einem Zustand des Linearmotors zu regeln. Hierdurch ist es möglich ausgleichend auf die Arbeit des Linearmotors einzuwirken, z.B. diesen zu unterstützen oder zu bremsen. Kern dieses Verfahrens ist es einen Eingriff in die Arbeit des Linearmotors zu einem frühest möglichen Zeitpunkt vorzunehmen und so insbesondere die Qualität der Hammerschläge zu erhöhen bzw. die Betriebssicherheit des Hammers zu erhöhen.The method according to the invention for operating a hammer also provides, in particular, a braking and / or a retaining device and / or an additional acceleration device by the control unit as a function of a result with which the linear motor acts on the bear, and / or in response to a state of the linear motor. This makes it possible to exert a balancing effect on the work of the linear motor, for example to assist or brake it. The core of this method is to make an intervention in the work of the linear motor at an earliest possible time and in particular to increase the quality of the hammer blows and to increase the reliability of the hammer.
Insbesondere sieht die Erfindung vor, die Regelung der Brems- und/oder der Rückhalteeinrichtung und/oder der Zusatzbeschleunigungseinrichtung in Anhängigkeit davon vorzunehmen, ob der Bär von dem Linearmotor nicht wie vorgesehen beschleunigt, bewegt oder verzögert wird. Durch eine direkte Überwachung der Wirkung des Linearmotors auf den Bären kann der Betrieb des Hammers mit relativ klein dimensionierten Zusatzeinrichtungen optimiert werden, da frühzeitig in den Betriebsablauf eingegriffen wird. Dies erlaubt andererseits eine vergleichsweise schwache Dimensionierung des Linearmotors, da dieser bei Bedarf durch die Zusatzeinrichtungen unterstützt wird.In particular, the invention provides for the regulation of the brake and / or the restraint device and / or the additional acceleration device depending on whether the bear is not accelerated, moved or decelerated by the linear motor as intended. By directly monitoring the effect of the linear motor on the bear, the operation of the hammer can be optimized with relatively small-dimensioned additional equipment, as early intervention in the operation. On the other hand, this allows a comparatively weak dimensioning of the linear motor, since this is supported by the additional devices if necessary.
Weiterhin sieht die Erfindung vor, die Regelung der Brems- und/oder der Rückhalteeinrichtung und/oder der Zusatzbeschleunigungseinrichtung in Anhängigkeit davon vorzunehmen, ob der Bär von dem Linearmotor nicht wie vorgesehen in einer definierten Stellung gehalten wird. Hierdurch lässt sich insbesondere die Sicherheit stark erhöhen.Furthermore, the invention provides for the regulation of the braking and / or the retaining device and / or the additional acceleration device to be made in dependence on whether the bear is not held by the linear motor as intended in a defined position. As a result, in particular the security can be greatly increased.
Schließlich sieht die Erfindung vor, die Regelung der Brems- und/oder der Rückhalteeinrichtung und/oder der Zusatzbeschleunigungseinrichtung in Anhängigkeit davon vorzunehmen, ob der Linearmotor wie vorgesehen kraftfrei geschaltet oder ausgeschaltet wird. Insbesondere die Brems- und/oder Rückhalteeinrichtung kann ein Halten oder Bremsen des Bären in der Regel mit einem im Vergleich zu dem Linearmotor geringeren Energieverbrauch vornehmen.Finally, the invention provides for the regulation of the brake and / or the retaining device and / or the additional acceleration device to be made as a function of whether the linear motor is switched off or switched off as intended. In particular, the brake and / or restraint device can make holding or braking of the bear usually with a lower energy consumption compared to the linear motor.
Unter einem Hammer wird im Sinne der Erfindung eine Hammerschmiedeanlage verstanden, welche als sogenannter einfacher Hammer, welcher einen Bär umfasst, oder als sogenannter Gegenschlaghammer, welcher zwei gegenläufig verfahrbare, z.B. elektrisch und/oder hydraulisch miteinander gekoppelte Bären aufweist.For the purposes of the invention, a hammer is understood to mean a hammer-forging installation which is a so-called simple hammer which comprises a bear or a so-called counter-impact hammer, which has two counter-displaceable, e.g. having electrically and / or hydraulically coupled together bears.
Unter einer Abwärtsbewegung des Bären wird im Sinne der Erfindung eine Bewegung des Bären verstanden, bei welcher sich dieser einem zu bearbeitenden Werkstück annähert. Unter einer Aufwärtsbewegung des Bären wird im Sinne der Erfindung eine Bewegung des Bären verstanden, bei welcher sich dieser von einem zu bearbeitenden Werkstück entfernt.In the sense of the invention, a downward movement of the bear is understood to mean a movement of the bear in which it approaches a workpiece to be machined. Under an upward movement of the bear is understood in the context of the invention, a movement of the bear, in which this moves away from a workpiece to be machined.
Unter einer Stellung eines Linearmotors wird im Sinne der Erfindung die Stellung verstanden, in welcher ein Primärteil des Linearmotors zu einem Sekundärteil des Linearmotors steht.In the context of the invention, a position of a linear motor is understood to mean the position in which a primary part of the linear motor is at a secondary part of the linear motor.
Weitere Einzelheiten der Erfindung werden in der Zeichnung anhand von schematisch dargestellten Ausführungsbeispielen beschrieben.Further details of the invention are described in the drawing with reference to schematically illustrated embodiments.
Hierbei zeigt:
- Figur 1:
- eine schematische Darstellung eines einfachen Hammers;
- Figur 2:
- eine schematische Darstellung eines Gegenschlaghammers und
- Figur 3:
- einen Schnitt durch den in der
Figur 2 gezeigten Gegenschlaghammer.
- FIG. 1:
- a schematic representation of a simple hammer;
- FIG. 2:
- a schematic representation of a counter-hammer and
- FIG. 3:
- a cut through the in the
FIG. 2 shown counter-hammer.
In der
In der
Die Erfindung ist nicht auf dargestellte oder beschriebene Ausführungsbeispiele beschränkt. Sie umfasst vielmehr Weiterbildungen der Erfindung im Rahmen der Schutzrechtsansprüche.The invention is not limited to illustrated or described embodiments. Rather, it includes developments of the invention within the scope of the patent claims.
- 11
- Hammerhammer
- 22
- einfacher Hammersimple hammer
- 33
- Bärbear
- 44
- Maschinenrahmenmachine frame
- 55
- Oberteil von 6Top of 6
- 66
- Schmiedegesenkforging
- 77
- Unterteil von 6Lower part of 6
- 88th
- Schabotteanvil
- 9, 109, 10
- Linearmotorlinear motor
- 9a, 10a9a, 10a
- Primärteil von 9, 10Primary part of 9, 10
- 9b, 10b9b, 10b
- Sekundärteil von 9, 10Secondary part of 9, 10
- 1111
- Positionssensor für 3Position sensor for 3
- 1212
- RückhalteeinrichtungRestraint
- 1313
- Regelungseinheitcontrol unit
- 1414
- Bremseinrichtungbraking means
- 1515
- ZusatzbeschleunigungseinrichtungAdditional accelerator
- 15a15a
- weitere Linearmotoranother linear motor
- 1616
- Werkstückworkpiece
- 1717
- GegenschlaghammerCounterblow hammer
- 1818
- Bärbear
- 1919
- Hydraulikhydraulic
- 20, 2120, 21
- Linearmotorlinear motor
- 20a, 21a20a, 21a
- Primärteil von 20, 21Primary part of 20, 21
- 20b, 21b20b, 21b
- Sekundärteil von 20, 21Secondary section of 20, 21
- 2222
- Positionssensor für 18Position sensor for 18
- LL
- Verfahrachsetraversing
- S3, S18S3, S18
- Stellung von 3 bzw. 18Position of 3 or 18
- UU
- unterer Umkehrpunktlower reversal point
- y, y'y, y '
- Bewegungsrichtung von 3 bzw. 18Movement direction of 3 or 18
Claims (13)
- A method for operating a hammer (1, 2, 17) having at least one ram (3, 18) that can be driven by at least one linear motor (9, 10, 20, 21) and a regulating unit (13),- wherein the linear motor (9, 10, 20, 21) comprises a primary part (9a, 10a, 20a, 21 a) and a secondary part (9b, 10b, 20b, 21 b), wherein the primary part (9a, 10a, 20a, 21 a) is arranged on an engine frame (4) and the secondary part (9b, 10b, 20b, 21 b) is connected to the ram (3);- wherein the ram (3) is accelerated by the linear motor (9, 10, 20, 21) before a blow,- wherein the linear motor (9, 10, 20, 21) is switched free of force by the regulating unit (13) in a time-dependent and/or speed-dependent and/or path-dependent manner during the downward movement of the ram (3) before reaching the lower reversal point (U) of the ram (3),- wherein the field of the linear motor (9, 10, 20, 21) is inverted and- wherein the linear motor (9, 10, 20, 21) is switched again in a force-supplying manner in its upward movement for the entrainment of the ram (3),characterized in that- the position (S3) of the linear motor (9, 10, 20, 21), if the latter moves free of force, is tracked by the regulating unit (13) during the further movement of the ram (3),- wherein the position of the linear motor(s) (9, 10) changing further with the downward movement of the ram (3) is tracked by the regulating unit (13) by means of a position sensor (11) and/or by means of a direct monitoring of the secondary part (9b, 10b) moving with the ram (3).
- A method according to claim 1, characterized in that the force-supplying switching of the linear motor (9, 10, 20, 21) occurs in a time-dependent and/or speed-dependent and/or path-dependent manner and/or that a point in time is calculated in advance by the regulating unit (13) for the force-supplying switching of the linear motor (9, 10, 20, 21) on the basis of measured parameters, in particular, on the basis of parameters measured during the preceding hammer blows.
- A method according to one of the preceding claims, characterized in that the field of the linear motor (9, 10, 20, 21) is inverted before a blow of the ram (3, 18) on a workpiece (16).
- A method according to one of the preceding claims 1 to 2, characterized in that the field of the linear motor (9, 10, 20, 21) is inverted after a blow of the ram (3, 18) on a workpiece (16).
- A method for operating a hammer (1, 2, 17) having at least one ram (3, 18) that can be driven by at least one linear motor (9, 10, 20, 21) and a regulating unit (13), according to one of the preceding claims, characterized in that a braking device (14) and/or a retaining device (12) and/or an additional acceleration device (15, 15a) is regulated by the regulating unit (13) depending on a result, with which the linear motor (9, 10, 20, 21) acts on the ram (3, 18), and/or depending on a state of the linear motor (9, 10, 20, 21).
- A method according to claim 5, characterized in that the regulation of the braking device (14) and/or the retaining device (12) and/or the additional acceleration device (15, 15a) takes place depending on whether the ram (3, 18) is not accelerated, moved or delayed by the linear motor as intended.
- A method according to claim 5, characterized in that the regulation of the braking device (14) and/or the retaining device (12) and/or the additional acceleration device (15, 15a) takes place depending on whether the ram (3, 18) is not kept in a defined position by the linear motor (9, 10, 20, 21) as intended.
- A method according to claim 5, characterized in that the regulation of the braking device (14) and/or the retaining device (12) and/or the additional acceleration device (15, 15a) takes place depending on whether the linear motor (9, 10, 20, 21) is switched on or switched off force-free as intended.
- A method according to one of the preceding claims, characterized in that an additional acceleration device (15, 15a) is regulated by the regulating unit (13) depending on a result, with which the linear motor (9, 10, 20, 21) acts on the ram (3, 18), and/or depending on a state of the linear motor (9, 10, 20, 21).
- A method for operating a hammer according to claim 9, characterized in that the additional acceleration device (15) is arranged between the engine frame (4) and the ram (3) as a further drive, by means of which the ram (3) can be additionally accelerated, for example, in its downward movement, if a deviation from the target velocity is detected during a downward movement in the arrow direction (y').
- A method according to claim 9 or 10, characterized in that the regulation of the additional acceleration device (15, 15a) occurs depending on whether the ram (3, 18) is not accelerated, moved or delayed by the linear motor as intended.
- A method according to claim 9 or 10, characterized in that the regulation of the additional acceleration device (15, 15a) takes place depending on whether the ram (3, 18) is not kept in a defined position by the linear motor (9, 10, 20, 21) as intended.
- A method according to claim 9 or 10, characterized in that the regulation of the additional acceleration device (15, 15a) occurs depending on whether the linear motor (9, 10, 20, 21) is switched on or switched off force-free as intended.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810064228 DE102008064228A1 (en) | 2008-12-22 | 2008-12-22 | Method of operating a hammer |
PCT/DE2009/001534 WO2010072186A1 (en) | 2008-12-22 | 2009-10-29 | Method for operating a hammer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2373446A1 EP2373446A1 (en) | 2011-10-12 |
EP2373446B1 true EP2373446B1 (en) | 2015-09-23 |
Family
ID=41697939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09799491.7A Active EP2373446B1 (en) | 2008-12-22 | 2009-10-29 | Method for operating a hammer |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2373446B1 (en) |
CN (2) | CN107030238B (en) |
DE (1) | DE102008064228A1 (en) |
ES (1) | ES2553967T3 (en) |
HU (1) | HUE025655T2 (en) |
WO (1) | WO2010072186A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2454777C1 (en) * | 2011-01-12 | 2012-06-27 | Открытое Акционерное Общество "Тяжпрессмаш" | Electro-mechanical converter for impact machines |
CN102335705A (en) * | 2011-09-30 | 2012-02-01 | 太原理工大学 | Electric direct driving type impact forging hammer |
EP2687359B1 (en) * | 2012-07-18 | 2016-06-29 | Siemens Aktiengesellschaft | Machine and method for improving the precision of a non-linear movement of a machine element |
DE102015119101B4 (en) * | 2015-11-06 | 2017-12-21 | Schuler Pressen Gmbh | Blacksmith hammer and method of tracking a movement of a hammer bear of a blacksmith's hammer |
DE102015119591B4 (en) * | 2015-11-12 | 2017-12-21 | Schuler Pressen Gmbh | Linear hammer and method for operating a linear hammer |
DE102015119927B4 (en) * | 2015-11-18 | 2018-05-24 | Schuler Pressen Gmbh | Method of machining a workpiece and linear hammer |
DE102015119930B4 (en) * | 2015-11-18 | 2017-12-21 | Schuler Pressen Gmbh | sledgehammer |
DE102015119947B4 (en) * | 2015-11-18 | 2017-12-21 | Schuler Pressen Gmbh | Hammer bear and blacksmith hammer |
DE102015119928B4 (en) * | 2015-11-18 | 2017-12-21 | Schuler Pressen Gmbh | sledgehammer |
DE102015119946B4 (en) * | 2015-11-18 | 2018-10-25 | Schuler Pressen Gmbh | sledgehammer |
CN113426936A (en) * | 2021-05-27 | 2021-09-24 | 张祥妹 | Opposite-punching forging mechanism for small metal parts |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1195694A (en) | 1966-08-24 | 1970-06-17 | Paul Granby & Company Ltd | Improvements in or relating to Forging Hammers, Presses and the like |
RO63473A2 (en) * | 1973-05-12 | 1978-08-15 | Institutul Politehnic | SLEDGEHAMMER |
GB1416059A (en) * | 1973-09-27 | 1975-12-03 | Chimkentsky | Mechanical press control apparatus |
DE2350408C3 (en) | 1973-10-08 | 1982-01-21 | Čimkentskij zavod pressov-avtomatov imeni Kalinina, Čimkent | Regulation of the final speed of the ram of a mechanical, non-travel-bound press or a forging hammer |
CN87210027U (en) * | 1987-07-16 | 1988-06-15 | 北京首都钢铁公司 | Electronic control device for hammer |
CN2267927Y (en) * | 1996-07-19 | 1997-11-19 | 叶云岳 | Punch |
JP2004090031A (en) * | 2002-08-30 | 2004-03-25 | Uht Corp | Driving device for working device, and working device utilizing the driving device |
JP2004090131A (en) * | 2002-08-30 | 2004-03-25 | Canon Inc | Sheet cutter and recording apparatus |
-
2008
- 2008-12-22 DE DE200810064228 patent/DE102008064228A1/en not_active Ceased
-
2009
- 2009-10-29 CN CN201710153061.5A patent/CN107030238B/en active Active
- 2009-10-29 WO PCT/DE2009/001534 patent/WO2010072186A1/en active Application Filing
- 2009-10-29 CN CN200980151968.1A patent/CN102264488B/en active Active
- 2009-10-29 ES ES09799491.7T patent/ES2553967T3/en active Active
- 2009-10-29 EP EP09799491.7A patent/EP2373446B1/en active Active
- 2009-10-29 HU HUE09799491A patent/HUE025655T2/en unknown
Also Published As
Publication number | Publication date |
---|---|
CN107030238B (en) | 2019-04-12 |
EP2373446A1 (en) | 2011-10-12 |
ES2553967T3 (en) | 2015-12-15 |
CN107030238A (en) | 2017-08-11 |
CN102264488B (en) | 2017-04-12 |
WO2010072186A1 (en) | 2010-07-01 |
DE102008064228A1 (en) | 2010-07-08 |
CN102264488A (en) | 2011-11-30 |
HUE025655T2 (en) | 2016-04-28 |
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