EP1292406A1 - Procede servant a faire fonctionner un dispositif de transport de pieces a usiner destine a une presse - Google Patents
Procede servant a faire fonctionner un dispositif de transport de pieces a usiner destine a une presseInfo
- Publication number
- EP1292406A1 EP1292406A1 EP01957820A EP01957820A EP1292406A1 EP 1292406 A1 EP1292406 A1 EP 1292406A1 EP 01957820 A EP01957820 A EP 01957820A EP 01957820 A EP01957820 A EP 01957820A EP 1292406 A1 EP1292406 A1 EP 1292406A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- workpiece transport
- drive device
- braking
- press system
- torque
- 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.)
- Withdrawn
Links
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
Definitions
- the invention relates to a method for operating a workpiece transport device for a press system according to the type defined in more detail in the preamble of claim 1. Furthermore, the invention relates to a device for carrying out the method.
- mechanical holding devices are also used in a likewise general prior art, which have a positive connection to the respective device part.
- these are relatively expensive to manufacture, have to be adapted separately for each device and therefore cause relatively high costs.
- the braking devices normally used, described above, on the other hand, are standard parts, which results in relatively low costs and very low installation costs.
- a further advantage of the known braking devices is the lower braking torque required, since the drive is usually reduced and the torque is increased after the braking device.
- the predetermined torque applied by the drive device lies in a range which is slightly lower than the torque to be applied by the brake device, the torque applied by the mass of the workpiece and the workpiece transport device naturally having to be taken into account.
- Another advantage of the method according to the invention is that no additional hardware is required is required because standard parts can be used. This advantageously does not result in an increase in the moment of inertia.
- the predetermined torque can alternatively be applied manually by an operator when the press system is switched on or at any time when the press system is at a standstill.
- the braking torque of the braking device is too low, appropriate measures for personal safety can be taken, i.e. the workpiece transport device and / or the press system can then be switched off.
- a device for performing the method according to the invention is specified in claim 9.
- the single figure shows a schematic representation of a workpiece transport device for a press system with which the method according to the invention can be carried out.
- a weight compensation device 6 which is pneumatically operated and known per se, engages the belt drive 3 on.
- a braking device 8 also acts on an output shaft 7 of the electric motor 5.
- the braking device 8 engage at any other point within the workpiece transport device 1 at which it is able to prevent unwanted movement of the workpiece 2.
- the braking device 8 has at least one, in the present case, however, two friction linings 9, but in the present case is designed as a pure holding brake or static brake, ie the friction linings 9 are designed so that they only brake the workpiece 2 in an emergency, that is, braking from the movement of the workpiece 2, can be used and are subject to relatively high wear in such service braking.
- the holding torque is applied to the braking device 8 by spring force and the braking device 8 can be ventilated electrically or hydraulically.
- a service brake as a braking device 8 would also be conceivable.
- An encoder or displacement sensor 10 is connected to the output shaft 7 of the electric motor 5 and transmits the respective position of the output shaft 7 and thus of the workpiece 2 as an electrical pulse to a control device 11.
- the control device 11 is in turn connected to a current generator or converter 12, which supplies the electric motor 5 with a specific current intensity and thus controls its drive power and thus the distance traveled by the workpiece 2 and its speed.
- the displacement sensor 10, the control device 11 and the current transmitter 12 are of known construction and mode of operation, which are known to a person skilled in the relevant field, and are therefore not to be explained in more detail below.
- the braking device 8 Whenever the workpiece transport device 1 comes to a standstill, ie the friction linings 9 engage on the output shaft 7 and prevent movement of the same, and thus movement of the workpiece 2. Since the necessary holding torque from the braking device 8 may not occur if the friction linings 9 wear more can be applied, the function of the braking device 8 is checked by applying a predetermined torque by the electric motor 5. This can be carried out cyclically, for example each time the workpiece transport device 1 or the press system is switched off or on, but of course also manually at any other times at a standstill, for example as part of a service interval, by an operator.
- the torque applied by the electric motor 5 thus counteracts the weight of the workpiece transport device 1 or the workpiece 2 and lies in a range which is slightly lower than the holding torque which can be applied by the braking device 8.
- This test procedure ensures at all times during operation of the workpiece transport device 1 that the braking device 8 can apply the necessary holding torque.
- the torque applied by the drive device 5 exceeds the possible holding torque of the braking device 8
- the workpiece transport device 1 or the press system is switched off immediately, as described above, and potential accidents by repairing the braking device 8 can be avoided.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Braking Arrangements (AREA)
- Press Drives And Press Lines (AREA)
- Control Of Conveyors (AREA)
Abstract
La présente invention concerne un procédé servant à faire fonctionner un dispositif de transport de pièces à usiner (1) destiné à une presse, dans lequel le dispositif est entraîné par au moins un dispositif d'entraînement (5) qui peut être maintenu en position de repos par un dispositif de freinage (8). L'application d'un couple de rotation prédéterminé par l'intermédiaire du dispositif d'entraînement permet de vérifier le fonctionnement du dispositif de freinage.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10028147 | 2000-06-07 | ||
DE10028147A DE10028147B4 (de) | 2000-06-07 | 2000-06-07 | Verfahren und Vorrichtung zum Betreiben einer Werkstücktransportvorrichtung für eine Pressenanlage |
PCT/EP2001/006253 WO2001094047A1 (fr) | 2000-06-07 | 2001-06-01 | Procede servant a faire fonctionner un dispositif de transport de pieces a usiner destine a une presse |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1292406A1 true EP1292406A1 (fr) | 2003-03-19 |
Family
ID=7644967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01957820A Withdrawn EP1292406A1 (fr) | 2000-06-07 | 2001-06-01 | Procede servant a faire fonctionner un dispositif de transport de pieces a usiner destine a une presse |
Country Status (7)
Country | Link |
---|---|
US (1) | US6557463B2 (fr) |
EP (1) | EP1292406A1 (fr) |
KR (1) | KR20030007891A (fr) |
BR (1) | BR0111417A (fr) |
CA (1) | CA2407289A1 (fr) |
DE (1) | DE10028147B4 (fr) |
WO (1) | WO2001094047A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10234072B4 (de) * | 2002-07-26 | 2005-03-31 | Müller Weingarten AG | Stufenlose Verriegelungsvorrichtung für Werkstücktransportsysteme in Pressen |
DE10310925B3 (de) * | 2003-03-13 | 2004-11-04 | Müller Weingarten AG | Sicherheitsvorrichtung für das Werkstücktransportsystem in einer Presse |
DE102004024770B4 (de) * | 2003-05-15 | 2015-02-26 | Tox Pressotechnik Gmbh & Co. Kg | Sicherheitsprüfung von Maschinenbremsen |
DE10349758B3 (de) * | 2003-10-24 | 2005-06-09 | Schuler Pressen Gmbh & Co. Kg | Antriebseinrichtung |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE504479A (fr) * | 1951-04-28 | |||
DE2606646A1 (de) * | 1976-02-19 | 1977-09-01 | Komatsu Maypres Gmbh | Presse mit umlaufender antriebswelle |
DE2619716A1 (de) * | 1976-05-04 | 1977-11-17 | Schuler Gmbh L | Vorschubvorrichtung |
US5329415A (en) * | 1991-04-26 | 1994-07-12 | Aida Engineering Ltd. | Clutch-brake drive control for press machine |
EP0616882B1 (fr) * | 1993-03-23 | 1998-01-14 | Leinhaas Umformtechnik GmbH | Méthode de commande hydraulique d'une presse à levier articulée ou à genoullière et presse à levier articulée ou à genoullière avec un système de commande adapté à la mise en oeuvre de la méthode |
DE9417269U1 (de) * | 1994-10-31 | 1995-02-09 | Höhn, Carsten, Dipl.-Ing, 28832 Achim | Gerät zur Prüfung und Überwachung mechanischer Bremsen |
-
2000
- 2000-06-07 DE DE10028147A patent/DE10028147B4/de not_active Expired - Fee Related
-
2001
- 2001-06-01 CA CA002407289A patent/CA2407289A1/fr not_active Abandoned
- 2001-06-01 BR BR0111417-4A patent/BR0111417A/pt not_active Application Discontinuation
- 2001-06-01 WO PCT/EP2001/006253 patent/WO2001094047A1/fr not_active Application Discontinuation
- 2001-06-01 EP EP01957820A patent/EP1292406A1/fr not_active Withdrawn
- 2001-06-01 KR KR1020027016626A patent/KR20030007891A/ko not_active Application Discontinuation
- 2001-06-07 US US09/875,251 patent/US6557463B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO0194047A1 * |
Also Published As
Publication number | Publication date |
---|---|
BR0111417A (pt) | 2003-06-10 |
DE10028147B4 (de) | 2004-12-02 |
KR20030007891A (ko) | 2003-01-23 |
WO2001094047A1 (fr) | 2001-12-13 |
US6557463B2 (en) | 2003-05-06 |
DE10028147A1 (de) | 2001-12-20 |
US20020020306A1 (en) | 2002-02-21 |
CA2407289A1 (fr) | 2002-10-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20030107 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
17Q | First examination report despatched |
Effective date: 20030530 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20031010 |