EP0749826B1 - Mechanische Kniehebelpresse - Google Patents
Mechanische Kniehebelpresse Download PDFInfo
- Publication number
- EP0749826B1 EP0749826B1 EP96710006A EP96710006A EP0749826B1 EP 0749826 B1 EP0749826 B1 EP 0749826B1 EP 96710006 A EP96710006 A EP 96710006A EP 96710006 A EP96710006 A EP 96710006A EP 0749826 B1 EP0749826 B1 EP 0749826B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- press
- toggle joint
- cheeks
- toggle
- ram
- 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
Links
Images
Classifications
-
- 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
- B30B1/10—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 toggle mechanism
- B30B1/14—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 toggle mechanism operated by cams, eccentrics, or cranks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0029—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height
- B30B15/0035—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height using an adjustable connection between the press drive means and the press slide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/04—Frames; Guides
- B30B15/041—Guides
Definitions
- the invention relates to a mechanical toggle press with the top arranged drive, which two opposite and angularly synchronous rotatable drive cranks and two associated toggle lever systems has, via which the press ram in the press stand relative to Press table can be raised and lowered, each drive crank attacks the associated knee lever system in the knee joint area and the press ram each having a lower end joint of these toggle lever systems via a fork head and an adjusting spindle height-adjustable connection.
- a toggle press with a two-part press ram in which an inner Plunger performs the actual forming and an outer plunger e.g. to be reshaped Sheet metal is jammed, is also known from US-A 1,993,639. Also here the horizontal forces that occur are first introduced into the press ram, and with eccentric connecting rod forces there is a defined one Emigration movement to one side and to a side berth. This is also not by connecting the outer toggle lever systems by means of a Coupling rod prevented, because this coupling causes only one internal strut of the drive system, which is otherwise completely free in the Press lies.
- toggle presses of this type they are the press ram protruding fork heads of the adjusting spindles mounted in it each in a pot arranged on the press ram led to prevent that coming from the press drive Lateral forces adversely on the in and on the press ram housed actuators for the adjusting spindles can.
- a disadvantage of this known construction is that the interaction of the fork heads of the adjusting spindles with the pots of the press ram caused by the latter tipping forces introduced into the press stand during its working movement become.
- the resulting from the tipping forces of the press ram Stresses on the press stand can at least after one certain operating times his leadership qualities for the press ram affect, if care is not taken to ensure that the Press stamp in the area of its guides for the press ram a significantly strengthened and therefore costly design receives.
- each toggle system has two parallel knee joints has a connecting rod or a common bearing base Have push rod, on which or which on the other hand one of the Drive cranks attacks.
- the common storage base for the section of the toggle system forming the two knee joints Connecting rods or the push rod can be designed as a fork piece both levers coupled with this in a common effective level become. This advantageously results in a relative to completely symmetrical toggle lever system in its middle plane of action, that can take up high damage without damage.
- the invention provides that the coupling of two at a distance cheeks arranged parallel to each other, which on the lower End joint pin of both toggle lever systems near each attack the ends facing away from each other. Apart from this, that this measure facilitates the construction and installation of the paddock , it connects the two toggle lever systems together symmetrical arrangement to their effective level and thereby provides sure that horizontal forces emanating from these are also symmetrical to these planes of action and at the same time in a relatively large area into the stand-fixed ones Guide and support crossbars can be initiated.
- the invention also provides that the adjusting spindles associated actuators on brackets of the press ram rest, which is also a support base for a ram weight compensation system can form, which on a traverse of the Press stand rests and on the one hand at least one rubber bellows support cylinder and on the other hand one in fluid communication with it held pressure expansion tank includes.
- This ram weight compensation system its mode of action is particularly similar to that Air suspensions often used in vehicle construction.
- the mechanical toggle press 1 shown in the drawing has a press stand, for example, in a welded plate construction 2.
- This has two identical designs and one to the other parallel trolleys 3 and 4, each with a window opening 5 and 6 is provided. They are interconnected outer side walls 3 and 4 of the press stand 2 each at least two transverse cheeks 7 and 8, which are close to the upright boundary edges the window sections 5 and 6 are located in extend at right angles to the outer side cheeks 3 and 4.
- the press stand 2 essentially at least in some areas box-shaped design, but in the area of the window cutouts 5 and 6 of the two outer upright cheeks 3 and 4 as well as in the area of window sections of the transverse cheeks 7 and 8 is open.
- the press stand 2 has two additional stand cheeks 9 and 10, which are parallel to the outer upright cheeks 3 and 4 aligned and with these at least above and below through crossbars 47 are connected.
- the clear distance 11 between the two additional stand cheeks 9 and 10 correspond to only one Fraction of the clear distance 12 between the two outer ones Stand cheeks 3 and 4.
- the distances 11 and 12 are preferably to each other in a ratio of about 1: 3, with the installation levels for the additional stand cheeks 9 and 10 symmetrical to the vertical between the two outer upright cheeks 3 and 4
- Main longitudinal median plane 13-13 are arranged like that 2 and 3 of the drawing clearly show.
- window sections 5 and 6 on the outer stand cheeks 3 and 4 and also the additional stand cheeks 9 and 10 of the (not shown) fixed press table mounted can serve the upper part of these window sections 5 and 6 laterally delimiting, vertical edge sections 14 and 15 of the Formation or attachment of vertical guides for a press ram 16, which is relative to the press stand 2 and the therein Mount the press table so that it can be raised and lowered.
- the drive for the press ram 16 is in the press stand 2 above arranged.
- This drive has two opposite and angularly synchronous Drive cranks 17 and rotatably mounted in the press stand 18 on, which are constructed identically and of which the drive crank 17 in Fig. 3 of the drawing can be clearly seen.
- Fig. 3 the Drawing also shows that the bearing 19 for each of the Drive cranks 17 and 18 in the additional stand cheeks 9 and 10 are located. It is advantageous that each of the drive cranks 17 and 18 required only a relatively small overall length and therefore easily manufactured in a dimensionally stable design.
- Each drive crank 17 and 18 works via a connecting rod or a Push rod 20 or 21 with its own toggle lever system 22 or 23 together, which is suspended on the one hand in the press stand 2 and on the other hand attacks on the press ram 16.
- Each of the toggle systems 22 and 23 has an upper lever 24 and a lower lever 25, the upper lever 24 via one forming the upper end joint Bolts 26 in fixed bearings 27 between the additional Stand cheeks 9 and 10 is suspended, as clearly shown in FIG. 2 can be removed.
- the lower lever 25 engages over as lower end joint serving bolt 28 on a clevis 29, the forms the upper end of an adjusting spindle 30, which in turn by an actuator 31 adjustable in height on the press ram 16 connected.
- Each of the toggle lever systems 22 and 23 still have two parallel knee joints, the bolts 32 and 33 a common bearing base in a fork piece 34 of the connecting rod or Have push rod 20 or 21.
- the upper lever 24 engages each Toggle lever system 22 or 23 within the fork piece 34 on the bolt 32 on, while the lever 25 in the fork piece 34 by the bolt 33 is held.
- toggle lever system 22 can be seen from the toggle lever system 22 that this overall to the main vertical longitudinal median plane 13-13 of Press stand 2 is symmetrical and its installation space has between the two additional stand cheeks 9 and 10.
- the small construction width of the toggle lever systems 22 and 23 and their Symmetrical design makes it possible to use both the end joints acting bolts 26 and 28 as well as those acting as knee joints Bolts 32 and 33 each have a relatively short dimension and thus the entire toggle system 22 or 23 to give a high rigidity.
- the peculiarity of the toggle press shown in the drawing 1 is that the two bolts 28 each have a Clevis 29 with the two adjusting spindles 30 coupled lower End joints of both toggle systems 22 and 23 together by a extending normal to the direction of movement of the press ram 16 Coupling 35 are connected, in particular in FIGS. 1 and 2 and 4 and 5 can be seen.
- the ends turned away from each other 36 and 37 of this coupling 35 lie against stationary guide and support beams 38 and 39.
- the guide and support beams 38 and 39 are between the additional stand cheeks 9 and 10 of the press stand 2 arranged and are fixed together by this connected, as is clear from Fig. 5.
- adjusting spindles 30 associated actuators 31 on from the press ram 16 cantilevered consoles 42 rest, preferably through window openings in the transverse cheeks 7 and 8 of the press stand 2 to the outside protrude.
- These brackets 42 can also be a support base form for a ram weight compensation system 43, which on a crossbar 44 rests in the press stand 2 and on the one hand a rubber bellows support cylinder 45 and on the other hand one in Connected surge tank 46 includes.
- This Ram weight compensation system 43 works approximately on the principle the air suspension mainly used in vehicle construction, can thus be different in its operating behavior Coordinate operating conditions.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Presses And Accessory Devices Thereof (AREA)
Description
- daß die die Stellspindeln.tragenden Endgelenke beider Kniehebelsysteme miteinander durch eine sich normal zur Bewegungsrichtung des Pressenstößels erstreckende Koppel in Verbindung stehen,
- daß die voneinander abgewendeten Enden dieser Koppel gegen ständerfeste Führungs- und Stütztraversen anliegen, und
- daß die Führungs- und Stütztraversen sich oberhalb der ebenfalls ständerfesten Stößelführungen parallel zu vertikalen Achsebenen durch die unteren Endgelenke der Kniehebelsysteme erstrecken.
- Figur 1
- in einer zumindest teilweise geschnittenen Haupt-Ansichtsdarstellung die für die Erfindung wesentlichen Bau- und Funktionsteile einer mechanischen Kniehebelpresse,
- Figur 2
- die Kniehebelpresse nach Fig. 1, wobei ihr oberer und ihr unterer Teilbereich im Schnitt entlang der Linie II-II dargestellt ist, während ihr mittlerer Teil eine Ansicht in Pfeilrichtung II entspricht,
- Figur 3
- eine der Fig. 2 entsprechende Darstellung der Kniehebelpresse, wobei jedoch deren oberer Bereich in der Schnittebene III-III nach Fig. 1 gezeigt wird,
- Figur 4
- in einer der Fig. 1 ähnlichen Darstellung lediglich den oberen Teilbereich der Kniehebelpresse, wobei deren linkes Kniehebelsystem in der Strecklage und deren rechts Kniehebelsystem in der Knicklage dargestellt ist, und
- Figur 5
- einen Horizontalschnitt durch die Kniehebelpresse entlang der Schnittebene V-V in den Fig. 1 und 2.
- 1
- mechanische Kniehebelpresse
- 2
- Pressenständer
- 3
- äußere Ständerwange
- 4
- äußere Ständerwange
- 5
- Fensterausschnitt in der äußeren Ständerwange 3
- 6
- Fensterausschnitt in der äußeren Ständerwange 4
- 7
- Querwange
- 8
- Querwange
- 9
- zusätzliche Ständerwange
- 10
- zusätzliche Ständerwange
- 11
- lichter Abstand zwischen den zusätzl.Ständerwangen 9 und 10
- 12
- lichter Abstand zwischen den äußeren Ständerwangen 3 und 4
- 13-13
- vertikale Haupt-Längsmittelebene
- 14
- vertikaler Kantenabschnitt der Fensterausschnitte 5 und 6
- 15
- vertikaler Kantenabschnitt der Fensteraussschnitte 5 und 6
- 16
- Pressenstößel
- 17
- Antriebskurbel (links)
- 18
- Antriebskurbel (rechts)
- 19
- Lager der Antriebskurbeln 17 und 18
- 20
- Pleuel/Schubstange der Antriebskurbel 17
- 21
- Pleuel/Schubstange der Antriebskurbel 18
- 22
- Kniehebelsystem (links)
- 23
- Kniehebelsystem (rechts)
- 24
- Hebel (oben) der Kniehebelsysteme 22 und 23
- 25
- Hebel (unten) der Kniehebelsysteme 22 und 23
- 26
- Bolzen des oberen Endgelenkes der Kniehebelsysteme 22 und 23
- 27
- ortsfeste Lager der Kniehebelsysteme 22 und 23
- 28
- Bolzen des unteren Endgelenkes der Kniehebelsysteme 22 und 23
- 29
- Gabelkopf der Stellspindel 30
- 30
- Stellspindel
- 31
- Stellantrieb für die Stellspindel 30
- 32
- Bolzen (oben) der Kniegelenke
- 33
- Bolzen (unten der Kniegelenke
- 34
- Gabelstück der Pleuel/Schubstangen 20 und 21
- 35
- Koppel
- 36
- Ende (links) der Koppel 35
- 37
- Ende (rechts) der Koppel 35
- 38
- Führungs- und Stütztraverse (links) für die Koppel 35
- 39
- Führungs- und Stütztraverse (rechts) für die Koppel 35
- 40
- Wange der Koppel 35
- 41
- Wange der Koppel 35
- 42
- Konsole des Stößelgewicht-Ausgleichsystems
- 43
- Stößelgewicht-Ausgleichsystem
- 44
- Quertraverse des Pressenständers 2
- 45
- Gummibalg-Tragzylinder des Stößelgewicht-Ausgleichsystems 43
- 46
- Druckausgleichsbehälter des Stößelgewicht-Ausgleichsystems 43
- 47
- Querstege des Pressenständers 2
- 48
- Distanzstück zwischen den Wangen 40 und 41 der Koppel 35
Claims (6)
- Kniehebelpresse (1) mit oben angeordnetem Antrieb, welcher zwei gegenläufig und winkelsynchron drehbewegliche Antriebskurbeln (17, 18) und zwei zugehörige Kniehebelsysteme (22, 23) aufweist, über die der Pressenstößel (16) im Pressenständer (2) relativ zum Pressentisch heb- und senkbar aufgehängt ist, wobei jede Antriebskurbel (17 und 18) im Kniegelenkbereich am zugehörigen Kniehebelsystem (22 und 23) angreift und wobei der Pressenstößel (16) mit je einem unteren Endgelenk (28) jedes dieser Kniehebelsysteme (22 und 23) über je eine Stellspindel (30) höhenjustierbar in Verbindung steht,
dadurch gekennzeichnet,daß die die Stellspindeln (30) tragenden Endgelenke (28) beider Kniehebelsysteme (22 und 23) miteinander durch eine sich normal zur Bewegungsrichtung des Pressenstößels (16) erstreckende Koppel (35) in Verbindung stehen,daß die voneinander abgewendeten Enden (36 und 37) dieser Koppel (35) gegen ständerfeste Führungs- und Stütztraversen (38 und 39) anliegen, unddaß die Führungs- und Stütztraversen (38 und 39) sich oberhalb der ebenfalls ständerfesten Stößelführungen (14 und 15) parallel zu vertikalen Achsebenen durch die unteren Endgelenke (28) der Kniehebelsysteme (22 und 23) erstrecken. - Mechanische Kniehebelpresse nach Anspruch 1,
dadurch gekennzeichnet, daß jedes Kniehebelsystem (22 und 23) zwei parallele Kniegelenke (32 und 33) aufweist, die als gemeinsame Lagerbasis (34) einen Pleuel oder eine Schubstange (20 oder 21) haben, an dem bzw. der andererseits jeweils eine der Antriebskurbeln (17 oder 18) angreift. - Mechanische Kniehebelpresse nach einem der Ansprüche 1 und 2,
dadurch gekennzeichnet, daß die Koppel (35) aus zwei im Abstand zueinander parallel angeordneten Wangen (40 und 41) besteht, die an den Endgelenkbolzen (28) beider Kniehebelsysteme (22 und 23) jeweils in der Nähe von deren voneinander abgewendeten Enden angreifen (Fig. 2 und 5). - Mechanische Kniehebelpresse nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß der Pressenständer (2) zumindest oberhalb des Bewegungsbereichs des Pressenstößels (16) in seinem Inneren zwei zusätzliche Ständerwangen (9 and 10) aufweist, deren Abstand (11) voneinander lediglich einem Bruchteil des Abstandes (12) zwischen den dazu parallelen äußeren Ständerwangen (3 und 4) entspricht, und daß sich in jeder dieser zusätzlichen Ständerwangen (9 und 10) sowohl Lager (19) für die Antriebskurbeln (17 und 18) als auch Lager (27) für die oberen Endgelenke (26) der Kniehebelsysteme (22 und 23) befinden. - Mechanische Kniehebelpresse nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß der Abstand (11) zwischen den beiden zusätzlichen Ständerwangen (9 und 10) etwa einem Drittel des Abstandes (12) zwischen den dazu parallelen äußeren Ständerwangen (3 und 4) entspricht und dabei einerseits die Länge des Kröpfungsbereichs der Antriebskurbel (17 und 18) eingrenzt sowie andererseits für die maximalen Konstruktionsmaße der Koppel (35) bestimmend ist. - Mechanische Kniehebelpresse nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, daß die den Stellspindeln (30) zugehörigen Stellantriebe (31) auf Konsolen (42) des Pressenstößels (16) ruhen, die zugleich auch eine Stützbasis für ein Stößelgewicht-Ausgleichssystem (43) bilden, welches auf einer Traverse (44) des Pressenständers (2) ruht sowie einerseits einen Gummibalg-Tragzylinder (45) und andererseits einen Druckausgleichsbehälter (46) umfaßt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19522483A DE19522483A1 (de) | 1995-06-21 | 1995-06-21 | Mechanische Kniehebelpresse |
DE19522483 | 1995-06-21 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0749826A2 EP0749826A2 (de) | 1996-12-27 |
EP0749826A3 EP0749826A3 (de) | 1997-05-02 |
EP0749826B1 true EP0749826B1 (de) | 2001-11-14 |
Family
ID=7764865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96710006A Expired - Lifetime EP0749826B1 (de) | 1995-06-21 | 1996-06-18 | Mechanische Kniehebelpresse |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0749826B1 (de) |
DE (2) | DE19522483A1 (de) |
ES (1) | ES2167531T3 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19935656A1 (de) * | 1999-07-29 | 2001-02-01 | Schuler Pressen Gmbh & Co | Pressenbaureihe |
DE10047729C2 (de) * | 2000-09-27 | 2003-04-03 | Graebener Pressensysteme Gmbh | Mechanische Kniehebelpresse |
CN102581102B (zh) * | 2012-02-24 | 2015-01-21 | 苏州大学 | 双肘杆式冲床 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB350156A (en) * | 1929-05-03 | 1931-06-11 | Bliss E W Co | Adjustable platen power presses |
US1993839A (en) * | 1932-09-29 | 1935-03-12 | Toledo Machine & Tool Company | Toggle press |
US2282575A (en) * | 1940-07-05 | 1942-05-12 | Edward H Hall | Press |
US3348406A (en) * | 1963-11-12 | 1967-10-24 | Youngstown Sheet And Tube Co | Motorized press ram adjusting means |
US3524405A (en) * | 1968-06-13 | 1970-08-18 | Jarecki Corp | Toggle-action press |
DE2501748C3 (de) * | 1975-01-17 | 1983-11-03 | L. Schuler GmbH, 7320 Göppingen | Schnittpresse mit Kniegelenkantrieb |
-
1995
- 1995-06-21 DE DE19522483A patent/DE19522483A1/de not_active Withdrawn
-
1996
- 1996-06-18 DE DE59608175T patent/DE59608175D1/de not_active Expired - Lifetime
- 1996-06-18 ES ES96710006T patent/ES2167531T3/es not_active Expired - Lifetime
- 1996-06-18 EP EP96710006A patent/EP0749826B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0749826A3 (de) | 1997-05-02 |
DE19522483A1 (de) | 1997-01-02 |
EP0749826A2 (de) | 1996-12-27 |
ES2167531T3 (es) | 2002-05-16 |
DE59608175D1 (de) | 2001-12-20 |
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