EP1308268A1 - Press- oder Stanzautomat - Google Patents
Press- oder Stanzautomat Download PDFInfo
- Publication number
- EP1308268A1 EP1308268A1 EP01126273A EP01126273A EP1308268A1 EP 1308268 A1 EP1308268 A1 EP 1308268A1 EP 01126273 A EP01126273 A EP 01126273A EP 01126273 A EP01126273 A EP 01126273A EP 1308268 A1 EP1308268 A1 EP 1308268A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- punching machine
- measuring
- automatic press
- press
- machine according
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/14—Control arrangements for mechanically-driven presses
-
- 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
- B30B15/0041—Control arrangements therefor
Definitions
- the invention relates to a press or punching machine with a frame, the one lower part of the frame with a platen and one Has drive unit receiving frame top, which over Stand supported on the lower part of the frame, and with one of the drive unit to a reciprocating plunger that Can be moved vertically on the frame using guide columns is held, and with an adjusting device for adjusting the Ram reversal position during operation of the press or punching machine, a measuring device being assigned to the adjusting device is with a first, held on the movable plunger and a second, cooperating with this, held stationary Measuring element for contactless detection of the ram reversal position, and wherein the guide columns as well as the plunger and the platen define a tool installation space for holding tools.
- the EP 0 367 035 B1 proposed an indirect measurement in that the im Tool occurring pressure is detected.
- a pressure sensor to be used on the inside of the tool installation space Upper tool or is held on the lower tool. The one when moving together of upper tool and lower tool on the pressure transducer the pressure acting here is a measure of the immersion depth represents.
- Another press or punching machine in which the ram reversing position can be adjusted during operation is from the EP 0 732 194 B1 known.
- the first measuring element is rod-shaped or band-shaped and has a scale marking recognizable by the second measuring element in Shape of a plurality alternating in the longitudinal direction of the first measuring element North and South Pole areas.
- the second measuring element comprises a detector head with an induction loop for provision one dependent on the relative position of the two measuring elements Measurement signal.
- the two measuring elements are at an inner corner area of the tool installation space.
- the measuring elements are installed in the tools, it can Although the plunger position can be recorded very precisely, the conversion of the Automatic presses or punching machines are, however, due to the installation of the Measuring elements with considerable changeover times and adjustment work connected. If the measuring elements outside the tools at one arranged inner corner area of the tool installation space, so the changeover times can be reduced, but it does exist the risk of damage and contamination of the sensitive Measuring elements.
- the object of the present invention is a press or punching machine the generic type in such a way that on structurally simple way a reliable measured variable for adjustment the plunger reversal position can be provided while being practical no risk of damage to the measuring elements when converting the Tools exists.
- This task is the beginning of a press or punching machine mentioned type according to the invention solved in that the first and the second measuring element outside the tool installation space in one Guide column surrounding area of the plunger are held.
- the plunger of the press die Automatic punching machines with the help of guide columns in the vertical direction slidably held on the frame. For this, the guiding pillars gripped by the pestle.
- the press or punching machine has an electronic one Includes comparison unit, with the help of that provided by the measuring elements Measured variable can be compared with a target value.
- the latter is preferably via a programming unit of the comparison unit predetermined.
- the TARGET value can be one Operator after converting the press or punching machine be specified by the operator during a test run the quality of the processed by means of the press or punching machine Workpiece assessed. If the determined by means of the measuring elements ACTUAL value from the predefined TARGET value via a predetermined one Tolerance dimension beyond, the ram reversal position accordingly corrected.
- the second measuring element is preferably adjacent to the first measuring element held on a stand. Alternatively, it could be provided that second measuring element adjacent to the first measuring element on the press table fix.
- the second measuring element particularly reliably against mechanical influences To protect, it is beneficial if the second measuring element the side wall of the associated guide column of the Stand is held.
- the press or Punching machine includes a strain gauge for measuring the strain of the stand on which the second measuring element is held, and that the press or punching machine is assigned to the strain gauge Correction unit for correcting the measurement device provided measured value depending on the measurement signal of the Dehnungsmeßgliedes.
- the strain gauge is used, which is a measurement signal provides for the correction of that provided by the measuring unit Measured value.
- the Automatic press or punching machine has at least two pressure measuring elements, the two diagonally opposite stands of the frame are arranged.
- the diagonal arrangement of the pressure measuring elements on the frame allows it to be uneven in a structurally simple manner To determine stator strains so that measurement inaccuracies regarding the bottom dead center position of the ram due to an uneven Stand expansion can be corrected.
- the press or punching machine at least comprises two measuring devices, each with a first and a second measuring element, the measuring devices outside the tool installation space in diagonally opposite each other arranged a guide column surrounding areas of the plunger are.
- the diagonal arrangement of the measuring devices enables to compensate for any guide asymmetries in the ram, so that despite the measurement of the ram position outside the tool installation space reliably the position of the plunger within the Tool installation space can be determined.
- the press or punching machine comprises a signal processing unit which is used to calculate a Average of those provided by the two measuring devices Measuring signals is connected to the two measuring devices.
- the averaging of the two measurement signals recorded in a diagonal arrangement makes it possible in a structurally particularly simple way, which within to determine the ram position prevailing in the tool installation space.
- the first and second measuring elements interact magnetically, for example.
- the second measuring element for example, a magnetic field sensitive Sensor, preferably have a Hall sensor, which on the sensor prevailing magnetic field strength from the position of the first measuring element is dependent.
- the first measuring element can be a control element have to influence the prevailing at the location of the sensor Magnetic field.
- the control element can, for example, be conical be so that by a vertical movement of the first measuring element the distance of the control element to the sensor of the second measuring element changed and thereby the magnetic field strength occurring at the sensor being affected.
- One of the two measuring elements preferably comprises one Coil through which one depends on the position of the other measuring element Electricity flows.
- One of the two measuring elements can be, for example A large number of alternating ones arranged in a row Show north and south poles.
- the series is the North and south poles arranged on the first measuring element, this one has rod-shaped or ribbon-shaped configuration.
- the second measuring element preferably has a U-shaped groove into which the first measuring element immersed, and includes at least one induction coil, so that a relative displacement of the two measuring elements within the induction coil induces a current from an associated detector can be detected to provide one of the position of the plunger dependent measurement signal.
- a press or punching machine As an example of a press or punching machine according to the invention is in the drawing schematically shows a high-speed punching machine, which is denoted overall by reference number 10. It includes a frame-like frame 12 with a lower frame part 14 and one Frame upper part 15, which is a total of four, in the corner points a stand 16 arranged on a rectangle supports on the lower frame part 15. The stand 16 thus have a supporting function and are accordingly massive.
- the upper frame part 15 receives a drive unit 18 for driving a plunger 20 which can be moved back and forth in the vertical direction
- the drive unit comprises an eccentric shaft 22, which by means of roller bearings 24 is rotatably held on the frame 12 and by means of a Drawing not shown, known drive motor a rotational movement can be driven.
- the ram is guided in the vertical direction by means of a total four guide columns arranged in the corner points of a rectangle 31 to 34, each of a holding arm 35, 36, 37 and 38 of the plunger 20 are encompassed, so that the guide columns 31 to 34 - each adjacent to a stand 16 - immovable on the plunger 20th are held.
- the guide columns 31 to 34 are with their respective longitudinal axes 31a up to 34a aligned vertically and delimit in the horizontal direction a tool installation space 40, the vertical extent of which the bottom of the plunger 20 and the top of a platen 42 of the lower frame part 14 is limited.
- a tool installation space 40 can be on the plunger 20 and the platen 42 known per se and therefore not shown in the drawing Lower tool or a tool, also not shown in the drawing, Assemble the known upper tool for punching or pressing of a workpiece.
- Each guide column 31 to 34 is above and below the end Tool installation space 40 a roller bearing 45 preloaded without play assigned with a guide bush so that the plunger 20 by means of Guide columns 31 to 34 and the roller bearing 45 in the vertical direction is exactly guided.
- An oil cooling circuit 47 is to be kept as low as possible provided with an oil tank, not shown in the drawing, which is integrated in the lower frame part 14.
- the tappet 20 is via the connecting rods 26 and 27 by means of the eccentric shaft 22 driven to a reciprocating motion.
- the drive unit 18 includes a arranged above the eccentric shaft 22 and with this via a Connecting rod 49 coupled balancing mass 51, which is aligned on vertically Guide rods 53 is guided.
- vibration damper 57 which is as environmentally friendly as possible Enable installation of the automatic punching machine 10, by dampening vibrations very strongly.
- each a measuring device 60 or 62 is arranged, each a first, outside the tool installation space 40 in the area of the respective Holding arms 35 and 38 fixed first measuring element 64 and a interacting with the first measuring element 34, each adjacent arranged stand 16 include held second measuring member 66.
- the horizontal extent of the tool installation space 40 is how explained above, determined by the guide columns 31 to 34.
- the two measuring devices 60 and 62 arranged outside the tool installation space 40, because each encompassing a guide column 31 to 34 Holding arms 35 to 38 protrude beyond the tool installation space 40, and the first measuring members 64 are in the over the tool space 40 protruding area fixed to the holding arms 35 and 38 respectively.
- the second measuring elements 66 are also outside the tool installation space 40, set on the adjacent stand 16.
- the first measuring elements 64 are each rod-shaped and have a plurality of arranged one behind the other in the longitudinal direction North and South Poles.
- the second measuring elements 66 each comprise a receiving groove into which the first measuring elements 64 are immersed, and each an induction coil (not shown) in which when moving of the plunger 20 and the associated relative movement of the first measuring elements 64 an induction current is induced.
- Measuring devices 60 and 62 with first and second measuring elements 64 or 66 are known per se and for example in EP 0 732 194 B1 described.
- the two measuring devices 60 and 62 protrude Electrical lines, not shown, with a signal processing unit 71 in electrical connection, which in turn via not shown electrical lines coupled to the adjustment devices 29 is.
- the signal processing unit 71 comprises an electronic one Display device 73 and a keypad 74 for entering Control data and is used to control the high-speed punch press 10 including the adjustment devices 29.
- the Signal processing unit 71 a known in the drawing Controlled feed device, not shown, with the tool installation space 40 workpieces to be machined can be fed.
- the two measuring devices 60 and 62 arranged outside the tool installation space 40, in an area between the respective guide pillars 31 or 34 and one fixed to the respectively assigned stand 16 lateral protective wall 68, so that the measuring devices 60 and 62 on the one hand through the respective guide column 31 or 34 and on the other hand through the respectively assigned stand 16 and the protective wall 68 are protected against mechanical influences.
- the two measuring devices 60 and 62 provide the signal processing unit 71 with a measurement signal, wherein the signal processing unit 71 forms an average value which is used for Control of the adjusting devices 29 is used.
- the second measuring elements 66 of the two measuring devices 60 and 62 are on the side wall facing the respective guide column 31 or 34 76 of the stand 16 arranged adjacent to each other.
- the respective side wall 76 additionally takes a strain gauge 78 or 80, for example a strain gauge, with the help of a temperature-related expansion of the respective Stand 16 can be detected.
- Strain gauges 78 and 80 stand over electrical lines not shown in the drawing also in electrical connection with the signal processing unit 71.
- the measurement signals of the strain gauges 78 and 80 become Correction of those provided by the measuring devices 60 and 62 Measurement signals used.
- the signal processing unit comprises 71 a correction unit 82, so that due to an expansion of the column occurring measurement inaccuracies of the measuring devices 60 and 62 can be compensated.
- the measuring devices 60 and 62 which have an actual signal provide that which can be predetermined with one of the signal processing unit 71 TARGET signal can be compared. Exceeds this determined deviation also the signal processing unit 71 definable tolerance range, so the adjustment devices 29 activated to correct the plunger reversal position by the effective length of the connecting rods 26 and 27 is readjusted.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
- Press Drives And Press Lines (AREA)
Abstract
Description
Claims (12)
- Preß- oder Stanzautomat (10) mit einem Gestell (12), das ein Gestellunterteil (14) mit einer Aufspannplatte (42) sowie ein eine Antriebseinheit (18) aufnehmendes Gestelloberteil (15) aufweist, das sich über Ständer (16) am Gestellunterteil (14) abstützt, und mit einem von der Antriebseinheit (18) zu einer Hinund Herbewegung antreibbaren Stößel (20), der über Führungssäulen (31, 32, 33, 34) in vertikaler Richtung verschiebbar am Gestell (12) gehalten ist, und mit einer Verstelleinrichtung (29) zur Verstellung der Stößelumkehrposition während des Betriebs des Preß- oder Stanzautomaten (10), wobei der Verstelleinrichtung (29) eine Meßeinrichtung (60; 62) zugeordnet ist mit einem ersten, am bewegbaren Stößel (20) gehaltenen Meßglied (64) sowie einem mit diesem zusammenwirkenden, ortsfest gehaltenen zweiten Meßglied (66) zum berührungslosen Erfassen der Stößelumkehrposition, und wobei die Führungssäulen (31, 32, 33, 34) sowie der Stößel (20) und die Aufspannplatte (42) einen Werkzeugeinbauraum (40) definieren zur Aufnahme von Werkzeugen, dadurch gekennzeichnet, daß das erste und das zweite Meßglied (64, 66) außerhalb des Werkzeugeinbauraums (40) in einem eine Führungssäule (31 bzw. 34) umgreifenden Bereich (35 bzw. 38) des Stößels (20) angeordnet sind.
- Preß- oder Stanzautomat nach Anspruch 1, dadurch gekennzeichnet, daß im Abstand zu den Führungssäulen (31, 32, 33, 34) jeweils ein Ständer (16) und/oder eine seitliche Schutzwand (68) angeordnet sind und daß das erste und das zweite Meßglied (64, 66) im Bereich zwischen der Führungssäule (31, 32, 33, 34) und dem zugeordneten Ständer (16) bzw. einer zugeordneten Schutzwand (68) positioniert sind.
- Preß- oder Stanzautomat nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das zweite Meßglied (66) dem ersten Meßglied (64) benachbart an einem Ständer (16) gehalten ist.
- Preß- oder Stanzautomat nach Anspruch 3, dadurch gekennzeichnet, daß das zweite Meßglied (66) an der der benachbarten Führungssäule (31, 34) zugewandten Seite (76) des Ständers (16) gehalten ist.
- Preß- oder Stanzautomat nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß der Preß- oder Stanzautomat (10) ein Dehnungsmeßglied (78) umfaßt zur Messung der Dehnung des Ständers (16), an dem das zweite Meßglied (66) gehalten ist, und daß der Preß- oder Stanzautomat (10) eine dem Dehnungsmeßglied (78) zugeordnete Korrektureinheit (82) aufweist zur Korrektur des von der Meßeinheit (60, 62) bereitgestellten Meßwerts in Abhängigkeit vom Meßsignal des Dehnungsmeßgliedes (78).
- Preß- oder Stanzautomat nach Anspruch 5, dadurch gekennzeichnet, daß der Preß- oder Stanzautomat (10) zumindest zwei Dehnungsmeßglieder (78) umfaßt, die an zwei einander diagonal gegenüberliegenden Ständern (16) des Gestells (12) angeordnet sind.
- Preß- oder Stanzautomat nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß der Preß- oder Stanzautomat (10) mindestens zwei Meßeinrichtungen (60, 62) umfaßt mit jeweils einem ersten und einem zweiten Meßglied (64, 66), wobei die Meßeinrichtungen (60, 62) außerhalb des Werkzeugeinbauraumes (40) in einander diagonal gegenüberliegenden, jeweils eine Führungssäule (31, 34) umgreifenden Bereichen (35, 38) des Stößels (20) angeordnet sind.
- Preß- oder Stanzautomat nach Anspruch 7, dadurch gekennzeichnet, daß der Preß- oder Stanzautomat (10) eine Signalverarbeitungseinheit (71) umfaßt, die zur Berechnung eines Mittelwertes der von den beiden Meßeinrichtungen (60, 62) bereitgestellten Meßsignale mit den beiden Meßeinrichtungen (60, 62) verbunden ist.
- Preß- oder Stanzautomat nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß das erste und das zweite Meßglied (64, 66) magnetisch miteinander zusammenwirken.
- Preß- oder Stanzautomat nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß das erste und das zweite Meßglied (64, 66) induktiv miteinander zusammenwirken.
- Preß- oder Stanzautomat nach Anspruch 9 oder 10, dadurch gekennzeichnet, daß eines der beiden Meßglieder (66) eine Spule umfaßt und durch die Spule ein von der Relativstellung der beiden Meßglieder (64, 66) abhängiger Strom fließt.
- Preß- oder Stanzautomat nach Anspruch 11, dadurch gekennzeichnet, daß eines der beiden Meßglieder (64) eine Vielzahl von in Reihe hintereinander angeordneter, einander abwechselnder magnetischer Nord- und Südpolbereiche aufweist
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50111859T DE50111859D1 (de) | 2001-11-06 | 2001-11-06 | Press- oder Stanzautomat |
EP20010126273 EP1308268B1 (de) | 2001-11-06 | 2001-11-06 | Press- oder Stanzautomat |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20010126273 EP1308268B1 (de) | 2001-11-06 | 2001-11-06 | Press- oder Stanzautomat |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1308268A1 true EP1308268A1 (de) | 2003-05-07 |
EP1308268B1 EP1308268B1 (de) | 2007-01-10 |
Family
ID=8179164
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20010126273 Expired - Lifetime EP1308268B1 (de) | 2001-11-06 | 2001-11-06 | Press- oder Stanzautomat |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1308268B1 (de) |
DE (1) | DE50111859D1 (de) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1516685A1 (de) * | 2003-09-18 | 2005-03-23 | Baltec Maschinenbau Ag | Verfahren zur automatischen Kompensation der Aufbiegung von Maschinengestellen bei Nietmaschinen |
EP1582338A1 (de) * | 2004-03-30 | 2005-10-05 | Haulick + Roos GmbH | Presse, stanz- oder umformautomat |
EP1582336A1 (de) * | 2004-03-30 | 2005-10-05 | Haulick + Roos GmbH | Presse, Stanz- oder Umformvorrichtung |
US8132529B2 (en) * | 2005-09-27 | 2012-03-13 | The Timken Company | Applicator for automatic discharge of a corrosion preventative to a sensor surface |
EP1413424B2 (de) † | 2002-10-22 | 2013-12-11 | Haulick + Roos GmbH | Press- oder Stanzanlage |
US11899081B2 (en) | 2019-12-10 | 2024-02-13 | Barnes Group Inc. | Wireless sensor with beacon technology |
AT526674B1 (de) * | 2023-11-24 | 2024-06-15 | Andritz Kaiser Gmbh | Presse mit kompensation der stoesselverkippung |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4386304A (en) * | 1977-07-09 | 1983-05-31 | L. Schuler Gmbh | Control drive for a ram adjustment device on a blanking press |
EP0367035A1 (de) * | 1988-11-03 | 1990-05-09 | OTTO KAISER GmbH & Co. KG | Presse oder Stanze |
EP0732194A1 (de) * | 1995-03-17 | 1996-09-18 | Bruderer Ag | Verfahren und Vorrichtung zur Messung und Regelung der Höhenstellung des Stössels einer schnellaufenden Schnittpresse |
EP0941834A1 (de) * | 1998-03-09 | 1999-09-15 | Battaglia Bergomi, Claudia | Einstellvorrichtung des Hubdrucks in einer Umformpresse |
EP0943422A2 (de) * | 1998-03-16 | 1999-09-22 | Yamada Dobby Co., Ltd. | Steuervorrichtung für den Stössel einer Presse |
DE19846210A1 (de) * | 1998-10-07 | 2000-04-13 | Dorst Masch & Anlagen | Presse zum Herstellen von Formkörpern |
-
2001
- 2001-11-06 EP EP20010126273 patent/EP1308268B1/de not_active Expired - Lifetime
- 2001-11-06 DE DE50111859T patent/DE50111859D1/de not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4386304A (en) * | 1977-07-09 | 1983-05-31 | L. Schuler Gmbh | Control drive for a ram adjustment device on a blanking press |
EP0367035A1 (de) * | 1988-11-03 | 1990-05-09 | OTTO KAISER GmbH & Co. KG | Presse oder Stanze |
EP0732194A1 (de) * | 1995-03-17 | 1996-09-18 | Bruderer Ag | Verfahren und Vorrichtung zur Messung und Regelung der Höhenstellung des Stössels einer schnellaufenden Schnittpresse |
EP0941834A1 (de) * | 1998-03-09 | 1999-09-15 | Battaglia Bergomi, Claudia | Einstellvorrichtung des Hubdrucks in einer Umformpresse |
EP0943422A2 (de) * | 1998-03-16 | 1999-09-22 | Yamada Dobby Co., Ltd. | Steuervorrichtung für den Stössel einer Presse |
DE19846210A1 (de) * | 1998-10-07 | 2000-04-13 | Dorst Masch & Anlagen | Presse zum Herstellen von Formkörpern |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1413424B2 (de) † | 2002-10-22 | 2013-12-11 | Haulick + Roos GmbH | Press- oder Stanzanlage |
EP1516685A1 (de) * | 2003-09-18 | 2005-03-23 | Baltec Maschinenbau Ag | Verfahren zur automatischen Kompensation der Aufbiegung von Maschinengestellen bei Nietmaschinen |
EP1582338A1 (de) * | 2004-03-30 | 2005-10-05 | Haulick + Roos GmbH | Presse, stanz- oder umformautomat |
EP1582336A1 (de) * | 2004-03-30 | 2005-10-05 | Haulick + Roos GmbH | Presse, Stanz- oder Umformvorrichtung |
US8132529B2 (en) * | 2005-09-27 | 2012-03-13 | The Timken Company | Applicator for automatic discharge of a corrosion preventative to a sensor surface |
US11899081B2 (en) | 2019-12-10 | 2024-02-13 | Barnes Group Inc. | Wireless sensor with beacon technology |
AT526674B1 (de) * | 2023-11-24 | 2024-06-15 | Andritz Kaiser Gmbh | Presse mit kompensation der stoesselverkippung |
AT526674A4 (de) * | 2023-11-24 | 2024-06-15 | Andritz Kaiser Gmbh | Presse mit kompensation der stoesselverkippung |
Also Published As
Publication number | Publication date |
---|---|
DE50111859D1 (de) | 2007-02-22 |
EP1308268B1 (de) | 2007-01-10 |
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