DE2757625A1 - Drive for work transport in press - uses belt drive from shaft which operates cam and lever mechanism - Google Patents
Drive for work transport in press - uses belt drive from shaft which operates cam and lever mechanismInfo
- Publication number
- DE2757625A1 DE2757625A1 DE19772757625 DE2757625A DE2757625A1 DE 2757625 A1 DE2757625 A1 DE 2757625A1 DE 19772757625 DE19772757625 DE 19772757625 DE 2757625 A DE2757625 A DE 2757625A DE 2757625 A1 DE2757625 A1 DE 2757625A1
- Authority
- DE
- Germany
- Prior art keywords
- shaft
- drive
- power transmission
- press
- transport
- 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
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 230000033001 locomotion Effects 0.000 abstract description 8
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/05—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
- B21D43/055—Devices comprising a pair of longitudinally and laterally movable parallel transfer bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/05—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
Abstract
Description
Antrieb für eine einer Bearbeitungsmaschine Drive for one of a processing machine
individuell zugeordnete Transportvorrichtung Die Erfindung betrifft einen Antrieb der im Oberbegriff des Hauptanspruchs angegebenen Art, wie er aus der DT-OS 1 964 326, B21d, 43/05, in der Weise bekannt ist, daß die Drehungen der Stößelantriebswelle einer Presse über eine Königewelle nach unten auf die Steuerwelle übertragen wird. Zum Überbrücken der Höhendifferenz muß die Königswelle bei Pressen häufig eine Länge von mehreren Metern aufweisen, so daß sie zu Schwingungen neigt. Ninunt man hinzu, daß eine derartige Königswelle nur mit relativ niedrigen Drehzahlen betrieben wird, so macht es Schwierigkeiten, mit dieser bekannten Kraftübertragung eine gleichförmige Drehbewegung von der Stößelantriebswelle auf die Steuerwelle der Transportvorrichtung unverfälscht durch die Belastung zu übertragen. Diese Schwierigkeiten können eo weit gehen, daß man mit relativ langen Taktzeiten arbeiten muß. individually assigned transport device The invention relates to a drive of the type specified in the preamble of the main claim, as it is from DT-OS 1 964 326, B21d, 43/05, is known in such a way that the rotations of the Slide drive shaft of a press via a vertical shaft down onto the control shaft is transmitted. To bridge the difference in height, the vertical shaft must be used for presses often have a length of several meters, so that they tend to vibrate. If one adds that such a vertical shaft only operates at relatively low speeds is operated, it makes difficulties with this known power transmission a uniform rotary movement from the tappet drive shaft to the control shaft to transmit the transport device unadulterated by the load. These difficulties can go so far that one has to work with relatively long cycle times.
Der Erfindung liegt die rufgabe zugrunde, einen Antrieb der im Oberbegriff des Hauptanspruchs angegebenen Art eo auszubilden, daß durch einfache konstruktive Maßnahmen und durch Einsatz handelsüblicher Bauteile auch bei kurzen Takt zeiten die unverfälschte Übertragung gleiohföraiger Drehbewegungen und damit eine ruhige Werkstückförderung gewährleistet ist. Die erfindungsgemäße Lösung dieser Aufgabe ist gekennzeichnet durch die Merkmale des Hauptanspruchs.The invention is based on the task of a drive in the preamble of the main claim specified type eo to train that by simple constructive Measures and through the use of commercially available components even with short cycle times the unadulterated transmission of simultaneous rotary movements and thus a calm one Workpiece conveyance is guaranteed. The solution according to the invention this task is characterized by the features of the main claim.
Die Erfindung geht also zunächst ab vom Einsatz einer - auf Torsion beanspruchten - Königswelle als Kraftübertragung und verwendet stattdessen nur auf Zug beanspruchbare Kraftübertragungen, die natürlich dehnungsarm und schlupffrei sein müssen, d.h. beispielsweise Zahnriemen und Ketten. Die Erfindung erschöpft sich jedoch nicht in dieser Maßnahme, sondern sieht ferner vor, daß diese Kraftübertragung in Eingriff steht mit einer hochtourigen Welle des Antriebs der Bearbeitungsmaschine, also beispielsweise der Bremswelle, deren Drehzahl bekanntlich erheblich größer, z.B. zwanzigmal größer, als die Drehzahl der Stößelantriebswelle ist. Um den Synchronismus der Arbeitsweise der Transportvorrichtung mit dem Arbeitszyklus der Bearbeitungsmaschine zu gewährleisten, ist der Steuerwelle ein Untersetzungsgetriebe vorgeschaltet. Infolge des Betriebs der Kraftübertragung mit einer hohen Drehzahl braucht gegenüber den bekannten Königswellen bei der Erfindung nur ein Bruchteil des Drehmoments über den Zahnriemen bzw. die Kette übertragen zu werden.The invention is therefore initially based on the use of a - on torsion claimed - upright shaft as power transmission and used instead only on Tensile power transmissions that are naturally low-stretch and slip-free e.g. toothed belts and chains. The invention exhausted However, not in this measure, but also provides that this power transmission is in engagement with a high-speed shaft of the drive of the processing machine, So for example the brake shaft, the speed of which is known to be considerably higher, e.g. twenty times greater than the speed of the tappet drive shaft. About synchronism the mode of operation of the transport device with the working cycle of the processing machine To ensure that the control shaft is preceded by a reduction gear. As a result of the operation of the power transmission at a high speed compared to the known vertical shafts with the invention only a fraction of the torque to be transferred to the toothed belt or chain.
Wie sich gezeigt hat, ist der erfindungsgemäße massenarme Antrieb ungewöhnlich laufruhig und problemlos beim Notstop der Bearbeitungemaschine. Die Drehbewegungen der Steuerwelle und damit der Kurvenscheiben sind auch bei den ständig wechselnden Lastmomenten gleichförmig.As has been shown, the drive according to the invention is low in mass unusually smooth and problem-free when the processing machine is stopped in an emergency. the Rotational movements of the control shaft and thus the cam disks are also constant with the changing load torques uniformly.
Ein Ausführungsbeispiel der Erfindung wird im folgenden anhand der Figuren erläutert, von denen Figur 1 schematisch eine Ansicht einer Presse in Transportrichtung der Werkstücke zeigt, während Figur 2 die Presse in Seitenansicht zur Hälfte wiedergibt.An embodiment of the invention is described below with reference to the Figures explained, of which Figure 1 is a schematic view of a press in the transport direction of the workpieces, while Figure 2 shows half of the press in side view.
Der Pressenstößel 1 ist in üblicher Weise in dem Pressenrahmen 2 geführt und wird mittels eines Antriebs betätigt, von dem hier nur die Bremswelle 3 mit in diesem Ausführungsbeispiel zwei Zahnscheiben 4 und 5 angedeutet ist. Mittels zwei Zahnriemen 6 und 7 werden die hochtourigen Drehbewegungen der Bremswelle 3 auf die beiden Zahnscheiben 8 und 9 übertragen, die zum Antrieb der nach jeweils einer Seite der Presse abgehenden Zahnriemen 10 und 11 dienen.The press ram 1 is guided in the press frame 2 in the usual manner and is operated by means of a drive, of which only here the brake shaft 3 is indicated with two toothed disks 4 and 5 in this exemplary embodiment. Means two toothed belts 6 and 7 are the high-speed rotary movements of the brake shaft 3 transferred to the two toothed disks 8 and 9, which are used to drive the after each one side of the press outgoing toothed belt 10 and 11 are used.
Diese Zahnriemen umschlingen - nach Umlenkung durch Umlenkscheiben 12 und 13 sowie entsprechende Umlenkscheiben für den anderen Zahnriemen 11 - Jeweils eine Zahnscheibe 14 und 15, die - über ein Untersetzungsgetriebe - in Drehverbindung stehen mit jeweils einer Steuerwelle für den Werkstücktransport. In den Figuren ist nur das durch die drei Zahnräder 16, 17 und 18 gebildete Untersetzungsgetriebe für die Steuerwelle 19 erkennbar. Auf der Steuerwelle 19 sitzt die Kurvenscheibe 20, deren Kontur bei ihren Drehbewegungen durch die bei 21 angedeutete Schwinge gleichsam abgetastet und über an sich beispielsweise aus der DT-OS 24 11 447, B21d, 43/05, bekannte stangenförmige Kraftübertragungen 22 auf Greifer 23 übertragen werden. Die stangenförmigen Kraftübertragungen 22 sind, wie im einzelnen aus der letztgenannten Druckschrift zu entnehmen, gelenkig ausgebildet, um den Hub- und Längsbewegungen des Werkstücks folgen zu können.Loop around this toothed belt - after being deflected by deflection pulleys 12 and 13 as well as corresponding deflection pulleys for the other toothed belt 11 - each a toothed disc 14 and 15, which - via a reduction gear - in rotary connection each have a control shaft for workpiece transport. In the figures is only the reduction gear formed by the three gears 16, 17 and 18 for the control shaft 19 can be seen. The cam is seated on the control shaft 19 20, the contour of which is caused by the rocker indicated at 21 during its rotational movements as it were scanned and about per se, for example, from DT-OS 24 11 447, B21d, 43/05, known rod-shaped power transmissions 22 are transmitted to grippers 23. The rod-shaped power transmissions 22 are, as in detail from the latter Refer to the publication, articulated to accommodate the lifting and longitudinal movements to be able to follow the workpiece.
Wie sich gezeigt hat, können mit der erfindungsgemäßen Kraftübertragung, die als wesentliche Bestandteile in diesem iusführungsbeispiel einen Zahnriemen und ein Untersetzungsgetriebe je Steuerwelle enthält, auch große Höhendifferenzen zwischen dem Stößelantrieb, also hier der Bremswelle 3, und der Steuerwelle überbrückt werden, ohne daß die Gefahr von Schwingungen oder Ungleichförmigkeiten der Bewegung auftritt.As has been shown, with the power transmission according to the invention, which is a toothed belt as an essential component in this exemplary embodiment and a reduction gear per control shaft contains, also large height differences bridged between the tappet drive, so here the brake shaft 3, and the control shaft without the risk of vibrations or irregularities in motion occurs.
LeerseiteBlank page
Claims (4)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772757625 DE2757625C2 (en) | 1977-12-23 | 1977-12-23 | Drive for a transport device individually assigned to a processing machine |
BR7808350A BR7808350A (en) | 1977-12-23 | 1978-12-20 | DRIVING FOR AN INDIVIDUAL CARRIER DEVICE IN AN OPERATING MACHINE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772757625 DE2757625C2 (en) | 1977-12-23 | 1977-12-23 | Drive for a transport device individually assigned to a processing machine |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2757625A1 true DE2757625A1 (en) | 1979-06-28 |
DE2757625C2 DE2757625C2 (en) | 1986-06-05 |
Family
ID=6027075
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19772757625 Expired DE2757625C2 (en) | 1977-12-23 | 1977-12-23 | Drive for a transport device individually assigned to a processing machine |
Country Status (2)
Country | Link |
---|---|
BR (1) | BR7808350A (en) |
DE (1) | DE2757625C2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4728253A (en) * | 1985-07-31 | 1988-03-01 | Aida Engineering, Ltd. | Apparatus for advancing and returning feed bars for a transfer press |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4309642B4 (en) * | 1993-03-25 | 2004-03-25 | Schuler Pressen Gmbh & Co. Kg | Transfer device for workpiece transport |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH81182A (en) * | 1919-01-15 | 1919-05-16 | Borel Profil Sa D Atel | Device with constrained movement for the transformation of a rotary movement into a reciprocating rectilinear movement |
US2851979A (en) * | 1954-06-15 | 1958-09-16 | Henry B Chatfield | Transfer device |
US3428166A (en) * | 1967-02-24 | 1969-02-18 | Bliss Co | Transfer feed press |
DE1481459B2 (en) * | 1966-01-07 | 1971-04-15 | The Udylite Corp , Warren, Mich (V St A ) | TRANSFER DEVICE FOR A WORKPIECE CARRIER |
US3590986A (en) * | 1968-10-01 | 1971-07-06 | Gulf & Western Ind Prod Co | Transfer feed |
DE1964326A1 (en) * | 1969-12-23 | 1971-07-15 | Schuler Gmbh L | Press with a transport device |
US3653569A (en) * | 1970-02-09 | 1972-04-04 | Peterson Co Carl G | Adjustable roll feed |
DE2249308A1 (en) * | 1972-10-07 | 1974-04-25 | Buse K G | CAP CONVEYOR |
DE2411447A1 (en) * | 1966-04-26 | 1975-09-25 | Volkswagenwerk Ag | Press transfer line workpiece - has transfer rails for each press and a connecting transporter |
-
1977
- 1977-12-23 DE DE19772757625 patent/DE2757625C2/en not_active Expired
-
1978
- 1978-12-20 BR BR7808350A patent/BR7808350A/en unknown
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH81182A (en) * | 1919-01-15 | 1919-05-16 | Borel Profil Sa D Atel | Device with constrained movement for the transformation of a rotary movement into a reciprocating rectilinear movement |
US2851979A (en) * | 1954-06-15 | 1958-09-16 | Henry B Chatfield | Transfer device |
DE1481459B2 (en) * | 1966-01-07 | 1971-04-15 | The Udylite Corp , Warren, Mich (V St A ) | TRANSFER DEVICE FOR A WORKPIECE CARRIER |
DE2411447A1 (en) * | 1966-04-26 | 1975-09-25 | Volkswagenwerk Ag | Press transfer line workpiece - has transfer rails for each press and a connecting transporter |
US3428166A (en) * | 1967-02-24 | 1969-02-18 | Bliss Co | Transfer feed press |
US3590986A (en) * | 1968-10-01 | 1971-07-06 | Gulf & Western Ind Prod Co | Transfer feed |
DE1964326A1 (en) * | 1969-12-23 | 1971-07-15 | Schuler Gmbh L | Press with a transport device |
US3653569A (en) * | 1970-02-09 | 1972-04-04 | Peterson Co Carl G | Adjustable roll feed |
DE2249308A1 (en) * | 1972-10-07 | 1974-04-25 | Buse K G | CAP CONVEYOR |
Non-Patent Citations (1)
Title |
---|
American Machanist, 05.10.1959, S. 90 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4728253A (en) * | 1985-07-31 | 1988-03-01 | Aida Engineering, Ltd. | Apparatus for advancing and returning feed bars for a transfer press |
Also Published As
Publication number | Publication date |
---|---|
DE2757625C2 (en) | 1986-06-05 |
BR7808350A (en) | 1979-08-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8127 | New person/name/address of the applicant |
Owner name: STRECK, FRITZ EPP, PETER, 3180 WOLFSBURG, DE |
|
D2 | Grant after examination | ||
8363 | Opposition against the patent | ||
8365 | Fully valid after opposition proceedings | ||
8339 | Ceased/non-payment of the annual fee |