EP3953164A1 - Verfahren sowie eine messeinrichtung zum ausmessen bzw. kalibrieren von utensilien bei pressen - Google Patents
Verfahren sowie eine messeinrichtung zum ausmessen bzw. kalibrieren von utensilien bei pressenInfo
- Publication number
- EP3953164A1 EP3953164A1 EP20706171.4A EP20706171A EP3953164A1 EP 3953164 A1 EP3953164 A1 EP 3953164A1 EP 20706171 A EP20706171 A EP 20706171A EP 3953164 A1 EP3953164 A1 EP 3953164A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- utensil
- die unit
- utensils
- opening
- measuring
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000003825 pressing Methods 0.000 title abstract description 9
- 230000008569 process Effects 0.000 title abstract description 6
- 238000005259 measurement Methods 0.000 claims description 21
- 230000003287 optical effect Effects 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 239000000523 sample Substances 0.000 claims description 4
- 230000007363 regulatory process Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/005—Control arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/007—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a plurality of pressing members working in different directions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0094—Press load monitoring means
Definitions
- the invention relates to a method and a measuring device for measuring or calibrating utensils, in particular in the case of presses according to the preamble of claim 1.
- a powder press according to the publication WO-A-2016/139151 is provided with preferably several punches which can be displaced in a chuck housing for cross-pressing and which partially delimit a cavity of a die in the chuck housing.
- the stamp is an associated with adjustable positioning means for determining its pressing position, which is formed from a wedge arrangement with a stop surface placed transversely to the direction of displacement of the punch.
- This wedge arrangement comprises at least one wedge with the stop surface which is adjustable transversely to the direction of displacement of the punch and which is in contact with a stop surface on the punch.
- the invention is based on the object of creating a method and an associated measuring device by means of which the accuracy of the tools or compacts to be produced is increased and, in addition, the constancy of the high accuracy over a large number of tools to be produced. gene or the pellets can be retained.
- a measuring device in which the utensils are placed in relation to one another as in the installed state in the press and can be displaced relative to one another at least in the axial direction of the opening of the die unit forming the die and are individually measured and / or calibrated to one another , whereby the utensils are identified and the measurements and / or calibrations are stored and used for operation in the press.
- the set-up time of the utensils measured or calibrated according to the method can be shortened when used in a press, in particular, because this prior measurement and calibration of the utensils is carried out in the press and production takes place after a few work steps during the assembly of the utensils can be started.
- the setup quality or accuracy is also improved despite the shorter time required for setup.
- the invention also extends to a calibration of the contact position of a utensil in the opening of the die unit by a manual or automated control and / or regulation, in which the utensil is introduced into the opening and as soon as it is touched Utensils in the wall of the opening of the die unit on the one hand an increase in force in the die unit or the punch is measured and on the other hand the electrical contact takes place, the contact position of the utensil can be recorded with great accuracy and thus prevent the punch from being operated with too much force is pushed into the opening or the die with too great a force and could damage the edge of the punch and possibly the inner wall of the die unit coming into contact with it.
- the measuring device comprises at least one stand or at least one column with at least one lower and one upper cross member and at least one measuring table which is adjustable in height on the stand between these and to which a chuck is preferably assigned for positioning the utensils.
- a die unit can advantageously be fastened as a utensil in the measuring table.
- These preferably several force sensors for determining the force pressure in the adjustment direction of the measuring table are advantageously arranged below the chuck.
- an optical micrometer is provided which emits optical light signals transversely to the direction of adjustment of the measuring table, and a length ruler is provided for measuring the planes of the utensils serving as the reference position.
- FIG. 1 a perspective front view of an inventive
- FIG. 2 shows a schematic section through a die unit and a view of an upper punch located in this in the contact position as utensils;
- FIG. 3 shows a further schematic section through a die unit and an upper punch as utensils, and a measuring instrument on the die unit for measuring the upper punch;
- FIG. 4 is a perspective view of a die unit and a
- FIG. 5 shows a schematic section through a die unit and a lower die as utensils and a measuring instrument on the die unit for measuring the lower die on its upper side.
- FIG. 1 shows a measuring device 10 with a vertically arranged stand 11, a lower and an upper transverse mounting plate 12, 13 fastened to it, and a measuring table 20 which is height-adjustable on the stand 11 between them.
- a measuring table 20 which is height-adjustable on the stand 11 between them.
- On or below the respective mounting plate 12 , 13 and a chuck 14, 15, 21 is preferably attached to the measuring table 20 for positioning the utensils, wherein depending on the utensils to be used, these chucks can be exchanged for differently sized ones.
- utensils can be measured or calibrated, in particular in presses, which are tools, punches 16, 17, die units 22 and the chucks 14, 15, 21 or the like. Presses are used to produce pressed parts made of iron, hard metal or ceramic powder for a wide variety of tools or for parts in general mechanical engineering, such as for valves, engine parts, bearing bushes or the like.
- this measuring device 10 is used to place the utensils in relation to one another as in the installed state in the press and to be displaceable relative to one another at least in the axial direction A of the opening of the die unit 22 forming the die, and they are measured and / or calibrated individually and to one another. Before or afterwards, the utensils are identified and the measurements and / or calibrations are saved and the processing is used in tool construction or for operation in the press.
- the utensils can thus be measured and calibrated with respect to one another in the same positions as in the operational state, as will be explained in more detail below. This allows these utensils use even more precisely and the pressed parts to be produced are manufactured accordingly more precisely in series.
- a die unit 22 is fastened on the measuring table 20 as a utensil in the clamping grease 21.
- These, preferably a plurality of force sensors for determining the force pressure in the adjustment direction of the measuring table or in the axial direction of the opening of the die unit 22 are arranged below this chuck.
- an optical micrometer is provided consisting of a transmitter 23 and a receiver 24, which are each arranged on one side of the measuring table 20. This transmitter 23 emits optical light signals transversely to the direction of adjustment of the measuring table, which are evaluated by the receiver and, in the process, positions of the utensils can be measured by light / shadow edges.
- a length ruler 18 aligned in the adjustment direction of the measuring table 20 is included for measuring the planes of the utensils serving as reference position, for which a high-precision glass ruler with an accuracy of less than 0.001 millimeters is preferably used.
- light barriers 28, 29 communicating with one another are attached to the outer circumference of the upper and lower transverse receiving plate 12, 13 and serve as security for the operating personnel. If, during a measurement, the user were to hold his hands between these receiving plates 12, 13 within the light curtain formed, the measuring device 10 would stop immediately.
- FIG. 2 on the one hand, the dimensions of the utensils to be determined and, on the other hand, a calibration of the contact position P of an utensil in the opening 25 of the die unit 22 is shown.
- This contact position P of a utensil in the opening 25 of the die unit 22 is detected by a manual or automated control and / or regulation.
- the utensil provided as the upper punch 17 is introduced into the opening 25 coaxially to this in the axial direction A by moving the measuring table 20 upwards, preferably at a low feed rate, which can also take place in steps, and moved into the so-called contact position P shown, which the Corresponding to the operating position in a press, for example, in which the full pressing force is exerted on the powder material poured into the die.
- This opening 25 is conical in its upper area 25 'and the outer diameter of the upper punch 17 is selected so that its lower, preferably somewhat rounded, edge is a few millimeters below the upper end of the die unit 22 in the wall of this opening 25.
- This upper punch 17 is also provided with a lower pin 17 'for the formation of a bore in the compact or the like to be produced.
- this contact position P As calibration, on the one hand the increase in force in the die unit 22 when the upper punch 17 hits the lower edge of the conical wall of the opening 25 and on the other hand an electrical contact between the two is measured. As soon as an increase in force or the electrical contact is determined, the movement of the measuring table 20 is stopped upwards.
- the device To determine the electrical contact, the device generates current in the milliampere range from the upper punch to the chuck, which is insulated downwards, on the measuring table. As soon as there is contact as explained above, the current is conducted and the resulting voltage can be measured. This stopping is expediently carried out at a predetermined target value for the force. This ensures that there is a certain pressing force, but that it is not too strong so as not to cause unwanted material damage to the lower punch edge or the wall of the opening 25.
- This control and / or regulating process is very advantageously repeated at least once with the displacement and adjustment of the utensil in the opening 25 of the die unit 22 and if the same measurement result is available as with the first contact position, it is saved and used in operation . On the other hand, if there were a deviation from the first measurement, the process would have to be repeated until the same measurement results are available.
- a medium preferably air
- a medium can be blown into the opening of the die unit 22 in the contact position of the utensil in order to determine whether the utensil is tight all around in the conical opening of the die unit rests.
- This opening 25 would have to be sealed. If not, the resulting air flow would be measured by measuring the air volume per unit of time. It could be the case, for example, that the upper punch 17 does not run exactly coaxially to the opening 25 and that there would then be a small gap on one side between these and this could be determined with such a measurement with the medium, because a gap Airflow through the opening would arise. The alignment between the utensil and the die unit could then be corrected and this measurement repeated. Such a gap could also result from inaccurate manufacture of the utensils. With this flow measurement there is the advantage that the amount of air flow over time can be measured and the size of the gap can thus also be determined.
- the following dimensions of the utensils are determined in particular in the previously set contact position P and saved.
- the upper punch 17 as a utensil, its total length L, its upper reference position Z1 and its penetration depth ET in the contact position, while in the case of the die unit 22 the position Z0 of the bottom serving as a reference, its height HM and also the total distance AD of the two in the Contact position determined and saved.
- additional mass could also be retained, but these dimensions are sufficient to achieve the desired precision during manufacture.
- FIG. 3 shows another exemplary embodiment of utensils in which a die unit 32 with a cylindrical opening 35 and a similarly shaped upper punch 37 as that according to FIG. 2 are used.
- the upper punch 37 is pressed onto the top of the die unit 32 during operation in the press or in the machine tool.
- a measuring instrument 36 which can be placed on the utensil, such as the die unit 32, is used, with a measuring probe 38 for measuring the at least one utensil, such as this upper punch 37.
- This measuring instrument 36 is used to measure the underside of the upper punch 37 having one or more surfaces with a pin 37 ′ and the distance to the upper side of the die unit 32, at least in relation to the axial direction A.
- Optical light signals 44 from the optical micrometer are also indicated, which are explained below.
- this upper punch 37 as a utensil, its total length L, its upper reference position Z1 and the pin length HZ are determined and stored in the case of the die unit 32, the reference position Z0 on the underside and its height HM. 4 shows this optical micrometer consisting of the transmitter 23 and the receiver 24, which are placed on one or the other side of the die unit 42.
- the transmitter 23 emits optical light signals 44, preferably laser beams, planarly in the direction of the opposite receiver 24 transversely to the adjustment direction of the die unit 42 or to the axial direction A and detects the continuous beams from them and forms measured values from them.
- a clamping means 47 ' is assigned to the upper punch 47, which can be releasably clamped in a clamping chuck (not shown in more detail) on the upper receiving plate 13 according to FIG.
- the die unit 42 for its part can also be releasably fastened in a chuck arranged on the measuring table 20.
- FIG. 5 again shows a measuring instrument 56 which can be placed on the utensil, such as the die unit 52, with a measuring probe 58 for measuring the at least one as lower punch 57 and a mandrel 55 movable in this as utensil.
- the measuring instrument 56 is arranged in a holding means 59 that can be placed on the die unit in such a way that the measuring probe 58 can be adjusted in the axial direction and the irregular contour of the upper end face 57 'of the lower punch 57 and the mandrel 55 is measured with this.
- the latter are also on held by a clamping means that can be clamped in a chuck.
- This lower punch 57 has a cylindrical shape and can be pushed through the opening of the die unit 52 and thus the position of its upper end face 57 'in relation to the lower reference position Z0 of the die unit can be determined.
- the latter is advantageously arranged on the stand so that it can be adjusted in height by a drive.
- the crossbeams could also be adjustable and the measuring table could be fixed in a stationary manner, or both the crossbeams and the measuring table could be arranged to be adjustable.
- this measuring device 10 is constructed as a separate device. Such a measuring device could but also be integrated in a press, by means of which the installed utensils could be measured and / or calibrated before pressing.
- the method according to the invention can also be used in service stations known per se, in presetting devices in presses, or in tool construction for checking and quality assurance.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH000475/2019A CH716048B1 (de) | 2019-04-09 | 2019-04-09 | Verfahren sowie eine Messeinrichtung zum Ausmessen von Utensilien für Pressen. |
PCT/EP2020/053938 WO2020207645A1 (de) | 2019-04-09 | 2020-02-14 | Verfahren sowie eine messeinrichtung zum ausmessen bzw. kalibrieren von utensilien bei pressen |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3953164A1 true EP3953164A1 (de) | 2022-02-16 |
Family
ID=69631551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20706171.4A Pending EP3953164A1 (de) | 2019-04-09 | 2020-02-14 | Verfahren sowie eine messeinrichtung zum ausmessen bzw. kalibrieren von utensilien bei pressen |
Country Status (5)
Country | Link |
---|---|
US (1) | US11897220B2 (de) |
EP (1) | EP3953164A1 (de) |
CN (1) | CN113853294A (de) |
CH (1) | CH716048B1 (de) |
WO (1) | WO2020207645A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH716048B1 (de) | 2019-04-09 | 2024-02-15 | Dietmar Kramer Dr Sc Techn Eth Phd | Verfahren sowie eine Messeinrichtung zum Ausmessen von Utensilien für Pressen. |
EP4079427A1 (de) * | 2021-04-22 | 2022-10-26 | GKN Sinter Metals Engineering GmbH | Verfahren zur bestimmung eines parameters eines werkstoffes und presswerkzeug zur herstellung eines grünlings |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0729223B2 (ja) * | 1991-06-28 | 1995-04-05 | アイダエンジニアリング株式会社 | プレス機械の下死点位置補正装置 |
FI92145C (fi) * | 1993-01-28 | 1994-10-10 | Tensor Oy | Menetelmä ja laitteisto tabletin puristamisen simuloimiseksi |
DE19717217C2 (de) * | 1997-04-24 | 1999-12-02 | Fette Wilhelm Gmbh | Verfahren und Vorrichtung zur Herstellung von Preßlingen aus Hartmetall, Keramik, Sintermetall oder dergleichen |
EP1211761B1 (de) | 1997-09-11 | 2005-12-14 | Komax Holding Ag | Verfahren und Einrichtung zur Bestimmung der Qualität einer Crimpverbindung |
DE19919693C2 (de) | 1999-04-30 | 2001-08-23 | Fette Wilhelm Gmbh | Verfahren zur Positionsbestimmung eines Preßstempels einer Pulverpresse |
DE10041237B4 (de) * | 2000-08-22 | 2006-02-02 | Engberts & Schäfer GmbH | Verfahren und Vorrichtung zum Nachweis der Maschinengüte an Anschlagpressen |
EP1602426B1 (de) | 2004-05-04 | 2013-10-09 | Erowa AG | Spanneinrichtung zum positionsgenauen Fixieren einer Spannzange an einem Spannfutter |
ES2305629T3 (es) * | 2004-08-09 | 2008-11-01 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Prensa con dispositivo para la deteccion de una posicion de referencia mutua de sus componentes. |
DE102005052158B4 (de) * | 2005-11-02 | 2008-01-03 | Fette Gmbh | Verfahren und Meßsystem zur Bildung einer Referenz bei einer Pulverpresse |
EP1849590B1 (de) * | 2006-04-29 | 2013-05-15 | Fette GmbH | Presse |
DE102006043561B3 (de) * | 2006-09-16 | 2008-04-30 | Schäfer Werkzeug- und Sondermaschinenbau GmbH | Verfahren und Vorrichtung zur Kalibrierung einer Anschlagpresse |
FR2951989B1 (fr) * | 2009-10-30 | 2012-02-03 | Medelpharm | Installation pour la realisation d'un produit solide a partir d'un ou de plusieurs materiaux pulverulents |
JP5970330B2 (ja) * | 2012-10-17 | 2016-08-17 | 株式会社アマダホールディングス | 金型測長装置 |
DE102014107127B4 (de) * | 2014-05-20 | 2016-09-15 | Fette Compacting Gmbh | Pulverpresse |
KR102048132B1 (ko) * | 2015-02-13 | 2019-11-22 | 피 + 엘 게엠베하 운트 콤파니 카게 | 공작 기계에서 공작물의 위치를 결정하는 방법 |
CH710828B1 (de) | 2015-03-05 | 2019-06-28 | Dietmar W Kramer Dr Sc Techn Eth Phd | Pulverpresse sowie ein Futtergehäuse mit vorzugsweise mehreren für ein Querpressen verschiebbaren Stempeln. |
US10598605B2 (en) * | 2017-11-03 | 2020-03-24 | Pacific Tools Pvt. Ltd. | Automated tablet tooling inspection system and a method thereof |
WO2020015815A1 (de) * | 2018-07-16 | 2020-01-23 | Bruderer Ag | Verfahren zum betrieb einer stanzpresse und stanzpressen zum betrieb gemäss den verfahren |
CH716048B1 (de) | 2019-04-09 | 2024-02-15 | Dietmar Kramer Dr Sc Techn Eth Phd | Verfahren sowie eine Messeinrichtung zum Ausmessen von Utensilien für Pressen. |
-
2019
- 2019-04-09 CH CH000475/2019A patent/CH716048B1/de unknown
-
2020
- 2020-02-14 CN CN202080027151.XA patent/CN113853294A/zh active Pending
- 2020-02-14 WO PCT/EP2020/053938 patent/WO2020207645A1/de unknown
- 2020-02-14 US US17/594,186 patent/US11897220B2/en active Active
- 2020-02-14 EP EP20706171.4A patent/EP3953164A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2020207645A1 (de) | 2020-10-15 |
CH716048B1 (de) | 2024-02-15 |
US11897220B2 (en) | 2024-02-13 |
CH716048A2 (de) | 2020-10-15 |
US20220152967A1 (en) | 2022-05-19 |
CN113853294A (zh) | 2021-12-28 |
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