EP2178668A1 - Dispositif de serrage et module de base associé - Google Patents

Dispositif de serrage et module de base associé

Info

Publication number
EP2178668A1
EP2178668A1 EP08783445A EP08783445A EP2178668A1 EP 2178668 A1 EP2178668 A1 EP 2178668A1 EP 08783445 A EP08783445 A EP 08783445A EP 08783445 A EP08783445 A EP 08783445A EP 2178668 A1 EP2178668 A1 EP 2178668A1
Authority
EP
European Patent Office
Prior art keywords
pressure
clamping
base module
collet
clamping device
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Withdrawn
Application number
EP08783445A
Other languages
German (de)
English (en)
Inventor
Hanspeter Sautter
Jürgen BANHOLZER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SWISSCETEC GmbH
Original Assignee
SWISSCETEC GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SWISSCETEC GmbH filed Critical SWISSCETEC GmbH
Publication of EP2178668A1 publication Critical patent/EP2178668A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/32—Chucks with jaws carried by diaphragm

Definitions

  • the invention is in the field of clamping devices for workpieces, and in particular relates to a clamping device and a base module therefor, with a filled with a hydraulic fluid pressure chamber according to the independent claims.
  • a leaking hydraulic fluid is not only due to prevent unwanted pollution of the environment, even a slightly variable capacity has a strong impact on the pressure in the hydraulic system. If a tool or workpiece is stretched too much, deformation or even fractures can result. Too easily tensioned workpiece can change its position during the Change processing or even completely solve. Both are undesirable or dangerous conditions and should be avoided.
  • the clamping pressure is predetermined and the pressure measurement indicates whether the clamping jaws are in a tensioned or loose state.
  • the device is not suitable.
  • this "two-state display" via the hydraulic lines is not suitable for precise information about the clamping pressure prevailing on the workpiece.
  • WO 2005/044491 describes a rotary clamping device for tools.
  • the liquid hydraulic fluid is replaced by arranged in a narrow pressure chamber elastic solid rings.
  • a tool clamping expansion sleeve, the solid rings, and a clamping ring are dimensionally accurate and arranged centrally next to each other.
  • the pressure chamber is reduced and the solid rings transfer the pressure to the expansion sleeve.
  • a sliding ring is provided on an end face.
  • a liquid lubricant between solid rings and clamping ring must be provided to prevent frictional and torsional forces.
  • the tensioned state is given by a stop of the clamping ring. Adjusting a clamping pressure, for example, at a certain wear of the solid body is not possible. This device is only suitable for rotationally symmetrical and tolerance-containing tools.
  • the clamping device for a workpiece to be clamped comprises a base module and a clamping element to be clamped, which is fixedly but preferably releasably connected to the base module.
  • the actual pressure or force buildup required for clamping a workpiece occurs in the base module, and the actual tightening of, or generally the force transmission directly to a workpiece in the clamping element.
  • the base module has a housing with a filled with a pressure medium pressure chamber and a housing and the pressure chamber final cover. In the region of the housing there is a pressure introduction element for acting on the pressure medium with pressure, and a pressure transmission element for transmitting the pressure of the pressure medium to an exciting clamping element, wherein the pressure medium is an elastic solid and the pressure via a pressure sensor is measurable.
  • the pressure sensor is preferably also introduced in the housing and is in direct contact with the pressure medium. It allows a constant observation and thus adjustment, variation and control of the pressure, whereby a pressure indication outside or also at the device, electronically or mechanically, can take place. It is the merit of this invention to have recognized, inter alia, that there is a need to provide a clamping device in which a clamping pressure is controlled, and can also be adjusted and varied as needed. This not only allows a variety of replaceability of the clamping device for a variety of Werk Swissformen- and materials, it is thus possible to achieve exactly reproducible clamping pressures. In particular, the creation of a base module, which can be combined with a variety of clamping elements, makes the present invention universally applicable.
  • a clamping device either only allowed a certain clamping pressure or it was up to the experience of a specialist to set the most suitable clamping pressure for a particular workpiece.
  • Pressure indication can be seen, for example, when the elasticity or flow limit of a workpiece is reached.
  • the clamping device uses the advantages of a hydraulic pressure transmissions, without, however, their disadvantages, which brings the use of hydraulic fluids with it. Due to the structure of the base module, which preferably manages without any torsional movement of the pressure medium, this is spared, which has a positive effect not only on the longevity, but also on the precision and reproducibility of the device.
  • a pressure transmitting element along a longitudinal axis of the base module is arranged to be movable, wherein the actual pressure introduction, however, is made laterally on the housing and also radially in the pressure chamber is initiated. This is preferably done by an introduced in the housing pressure introduction screw, which is connected to a pressure distribution piston arranged in the pressure chamber. This distributes the initiated pressure to the largest possible area of the print medium.
  • a lateral pressure introduction allows a simple application of the base module or the clamping device on a workbench or machine.
  • a pressurization usually takes place in the axial direction of the clamping device and the likewise axially clamped workpiece, ie either from a workpiece side or from the back of the clamping device ago.
  • a connection or access from the rear is either cumbersome or does not allow clamping in the assembled state of the fixture.
  • the base module according to the invention and the tensioning device according to the invention thus preferably have no connections or accesses in the bottom area which would have to be accessible during a tensioning process. This is possibly also possible to mount a base module already and subsequently attach a clamping element to the base module or replace such.
  • a clamping element for internal and external clamping comprises a plurality, e.g. 6-10, interconnected segments on.
  • Segments are created by radially continuous notches in an upper one
  • a lower bottom portion of the tension member is contiguous and may have a variable thickness.
  • a smaller thickness reduces a required clamping force, a larger thickness provides sufficient strength, eg for the intervention of a clamping screw.
  • the base module is provided with a slightly varied clamping element, in which a conically shaped pin can be arranged between the segments. This is then axially displaced over the clamping screw and thus pushes the segments apart, so that an inner clamping of a pushed over the clamping element workpiece, or even a holding device can be realized.
  • a slightly varied clamping element in which a conically shaped pin can be arranged between the segments. This is then axially displaced over the clamping screw and thus pushes the segments apart, so that an inner clamping of a pushed over the clamping element workpiece, or even a holding device can be realized.
  • Another form of a workpiece to be clamped thus requires only an adaptation of the clamping element. Due to the adjustable clamping pressure no changes in the voltage generation area are necessary.
  • the use of the device is not bound to rotationally symmetrical workpieces, nor to tolerance tools.
  • the construction of the base module, but also of the clamping device, in which all the components required for clamping are housed, is very compact and also permits use in close quarters.
  • the base module and the tensioning device are constructed as simply as possible, and can preferably be dismantled into their individual components by a simple disassembly.
  • the base module is so adaptable to different applications, such as an interior or exterior clamping, different workpiece shapes and materials to be machined, to a placement on a machine tool, etc.
  • the base module is so adaptable to different applications, such as an interior or exterior clamping, different workpiece shapes and materials to be machined, to a placement on a machine tool, etc.
  • For this purpose are preferably located in the housing and each other adjacent elements and components in Contact each other. However, these are preferably not interconnected, except their function makes this necessary, such as the connection of a clamping screw with a clamping element. This also facilitates easy disassembly and assembly of the device, for example for cleaning or replacement of individual
  • a preferably symmetrical arrangement which is preferably also balanced, is advantageous for the use of the base module / the clamping device for rotational processes, such as turning or grinding.
  • the clamping device is used for clamping, but not in a rotating state, it can be dispensed with balancing and, for example, the arrangement of the individual elements of the device, in particular the base module, such as pressure sensor and pressure introduction element, essentially arbitrarily in the housing, possibly also in one Cover, to be arranged.
  • the individual elements for example a pressure introduction piston, can be further optimized for their actual function.
  • the base module with housing with pressure chamber, pressure medium and cover forms a self-contained system and is only connected via a clamping screw with a clamping element placed on the housing.
  • the actual voltage generating area is essentially independent of which shape has a workpiece to be clamped, whether this is a piece of material to be machined or a tool to be clamped, or whether an interior or exterior clamping is required.
  • This separation of the clamping area and the actual voltage generating area makes the clamping device and in particular the base module easy and cheap for different areas.
  • the clamping elements can collets for internal and external clamping, but also clamping jaws, clamping elements with two, three or four jaw chuck, as centering, or even general systems for linear power transmission, etc. be.
  • the clamping device in particular the base module, is thus versatile. With the use of an elastic solid as a pressure medium, the clamping device uses the advantages of a hydraulic pressure transmissions, without, however, their disadvantages, which brings the use of hydraulic fluids with it. It is favorable in the production cost and offers advantages in the maintenance of the device.
  • the elastic solid is also preferably made of a temperature-resistant material as possible, which is not flowable under the applied pressure, for example.
  • a plastic mass as they are for example. Window seals application finds.
  • another material may be incorporated in the elastic mass, which may be e.g. regarding temperature even better parameters. This may be a non-elastic solid, but also a liquid which is completely enveloped by the elastic mass.
  • FIG. 1 is a schematic view of a clamping device
  • FIG. 2 is a sectional view along AA of Figure 1
  • 3 is a plan view of the open clamping device
  • FIG. 4 is a view of the clamping device according to FIG. 1,
  • Fig. 7 shows a variant of a collet for internal clamping.
  • Fig. 1 1 shows a variant of a three-jaw centering clamp.
  • Figures 1 and 2 show an outer and a sectional view (along the section lines AA) of a clamping device with a designed as a collet 3 clamping element for clamping out a workpiece outside.
  • the tensioning device comprises a housing 1 having a pressure chamber 5, a cover 2 terminating the housing upwardly or on the workpiece side, and a collet 3 applied to the cover.
  • the essentially cylindrical housing has, with respect to the longitudinal axis of the cylinder, laterally introduced in the housing pressure introduction element 4.
  • This pressure introduction element consists of a pressure introduction screw 4a, z. B. a Imbussschraube and an introduction pressure distribution piston 4b.
  • the screw 4a is actuated laterally from outside the housing, electronically or mechanically, and allows the clamping device to be subjected to a required pressure.
  • the pressure introduction screw 4a is, optionally via a decoupling element, with which a rotational and translational movement is separated, with the radially movable inlet pressure distribution piston 4b in contact.
  • the distribution piston in turn is in direct contact with a pressure chamber filling Print medium 6, which is shown in dashed lines in Figure 3.
  • Figure 3 shows a plan view of a clamping device with transparent drawn elements.
  • the distributor piston 4b extends over the entire height and largely over the width of the pressure chamber. By tightening or screwing in the introduction screw 4a, pressure is exerted on the pressure medium via the distributor piston 4b.
  • the distributor piston is designed so that it can distribute the pressure of the introduction screw to the largest possible area of the pressure medium. Due to the elasticity of the pressure medium, the pressure is transmitted to all sides, even on a centrally located in the housing and axially movably mounted therein pressure transfer piston 7. This is in direct contact with at least the head of a clamping screw 8, which in turn, preferably via a thread, with the collet 3, is connected.
  • the pressure transmission piston 7 has a cylindrical hollow shaft for receiving the clamping screw.
  • the elasticity of the pressure medium allows for deformation and guarantees reliable contact with the walls even after pressurization
  • Pressure chamber or located in the pressure chamber components The same applies to a pressure relief.
  • the residual stress of the collet strives for dissolved, ie unloaded, state.
  • the pressure medium is correspondingly relaxed and assumes its original shape.
  • This is connected via an external plug on the housing 10 with an external electronic pressure display and readable (not shown), but this could also be displayed directly on the housing readable. Accordingly, the important for a clamping pressure information at any time is controlled and adjustable. Even changes to an exciting workpiece, such as reaching a elasticity or flow limit can be recognized.
  • a plug can also be an interface for a contactless transmission of the sensor information, eg. B. via radio, infrared, Bluetooth, etc. may be present.
  • the axial movement of the pressure transmission piston, and thus also the clamping screw, is usually in a very small range of 0.1 -2mm, preferably between 0.2mm and 0.8mm, z. B. 0.4mm.
  • the extent of the axial movement can vary depending on the size of the clamping device in a wider range, but it is possible with the very small
  • Piston movements in the present arrangement for example, a fraction of a millimeter, a very compact base module and thus to design a very compact clamping device.
  • the piston can be integrated into the closed, very small housing.
  • Exemplary values and mass for an embodiment are achievable tensile forces up to 2OkN, which can be achieved in a clamping device with housing dimensions of about 100mm diameter and 75mm height.
  • the collet has a plurality of clamping segments 3 'connected in their base region. The bottom area of the collet is not uniformly thick between the segments, but thinned uniformly towards the edge areas. A certain thickness in the area of the clamping screw guarantees strength and hold. Due to the thinning towards the edge area, the force required for a deformation of the collet is reduced.
  • the pressure distribution piston extends over the entire height of the pressure chamber and up to, but not in the region of the pressure transmission piston 7. This lies with its widened end in a recessed area in the bottom of the pressure chamber. However, this recess is filled by the piston, such that the pressure surface 9 of the piston 7 is flush with the rest of the bottom of the pressure chamber without pressurization. So there are no, especially no temporary, voids in the pressure chamber, which are not reached by the elastic pressure medium. With the choice of the ratio of the area of the pressure distribution piston to the pressure surface of the pressure transmission piston, the desired pressurization and movement distance are essentially set.
  • a decoupling element preferably a ball
  • This element or ball is typically held in the screw but freely rotatable about the length of the screw.
  • the area which communicates directly with the pressure distribution piston is flattened to increase the contact surface between ball and piston.
  • Figure 4 shows an oblique view of the clamping device with housing 1, cover 2, rotationally symmetric collet with eight clamping segments 3% and pressure introduction element 4 and connector 1 1 of the pressure sensor.
  • a workpiece to be clamped is placed between the segments 3 'of the collet chuck. If the shape of the workpiece to be clamped is not symmetrical and neither round nor square, the shape of the workpiece can be excluded, for example, milled out in the collet. So are essentially arbitrary forms of workpieces, in particular eccentrically clamped. An example of this, for internal tensioning, is shown in FIGS. 9a and 9b.
  • Figure 5 shows an oblique view of a base module 100, here clamping device with remote collet, which illustrates the very compact design.
  • a base module 100 here clamping device with remote collet
  • the cover has an anti-rotation 12 and further positioning, here in the form of two opposing holes in which corresponding projections of a collet, or other clamping element can be used.
  • the cover also has a slightly raised, outwardly rounded edge 13. This supports an even, central deformation of the Collet segments and provides enough space for axial movement of the
  • the base module 100 as the actual voltage-generating region of the device is very compact and can be used by applying a suitable clamping element in different clamping situations or for the most diverse workpieces to be clamped.
  • FIG. 6 shows an oblique view into a base module 100 with the cover removed.
  • the inlet pressure distributor piston 4b He has in its center a slight recess at the height of the shaft of the pressure transmission piston 7.
  • the distributor piston 4b has a double guide in the housing (parallel vertical side surfaces) and in the cover to prevent tilting of the distributor piston.
  • a groove may be provided for an O-ring. This seal serves to protect the pressure chamber from dirt and liquids from the outside.
  • Figure 7 shows very schematically a section of a clamping device in the region of a collet 9 ', as it can be used with an otherwise unchanged base module for internal clamping.
  • an additional conically shaped pin 19 is centrally inserted into the collet, which has a central milled area.
  • This pin is, preferably via a thread, with the clamping screw 8 in connection. If pressure is introduced into a pressure chamber, the clamping screw is pulled down and with it the conical pin. The further this is pushed down, the stronger the jaws of the collet are pressed outwards and an internal stress in the region of the circumference of the collet causes.
  • the pin can also be designed so that the pin, and thus the clamping screw is fastened from above, or that also a pressure introduction occurs axially, over the pin.
  • the pin has corresponding screw means 20.
  • the screw means either the entire pin is screwed, or the pin is provided with a passage which causes a tightening of the pin without rotation of the same in the collet.
  • FIG. 8 schematically shows a pressure medium 6, as can be used in the base module 100 or the tensioning device according to the preceding figures.
  • the print medium is a piece of a suitable elastic
  • Solid material such as silicone or other plastic.
  • Pressure medium preferably has exactly the dimensions of the pressure chamber, so that they completely fills them and a uniform pressure transfer takes place on all sides of the medium.
  • the material of the pressure medium has such
  • the pressure medium has a cylindrical
  • Pressure transfer piston 7 is applied.
  • Dimensions of the silicone body for a shown in Figs. 1 -6 housing are approximately 70mm in diameter and 20mm in height.
  • a suitable hardness value for the silicone composition is about 35 Shore A.
  • the printing medium preferably has only the smallest possible
  • Ambient or operating temperatures remains as constant as possible.
  • in the pressure medium in addition be introduced largely independent of temperature solid 18. This is completely surrounded by the pressure medium and thus can be non-elastic or even liquid.
  • Such a solid 18 is shown dotted in the figure. He floats with the silicone compound and is for example made of glass, ceramic or carbon.
  • Figures 9a and 9b show a non-rotationally symmetrical workpiece 92, here specifically an inlet nozzle for a helium tank, which workpiece for further processing, for example, for milling or welding, is clamped in a correspondingly shaped collet for internal clamping with central pin 19.
  • the workpiece 92 has, except for a lower edge 94, no cylindrical portion which could be clamped in a conventional clamping device.
  • the workpiece has a downwardly projecting laterally spaced straight edge, which practically makes it impossible to clamp the workpiece.
  • the collet 93 of the device according to the invention now has, corresponding to the lower edge 94 of the workpiece, a recess into which the edge can be inserted and clamped therein.
  • the recess is not centrally introduced into the collet 93, but laterally offset, such that the projecting edge extends laterally outside the clamping device.
  • the base module 100 is attached to a bracket 95, e.g. bolted over which the clamping device is attached, for example, to a workbench or machine.
  • FIGS. 10 and 11 each show a two and three-jaw centering clamp.
  • This is a base module 100, as described for example in Figures 5 and 6, combined with corresponding clamping elements. The same elements are provided with the same reference numerals.
  • On the base module is a or three-jaw chuck 103,1 13 applied.
  • two or three horizontally moving slide 1 10.1 1 1 pressed inwards or outwards, depending on the pressurization of the clamping device.
  • the application of force to the slides can be made in principle similar to that described in Figure 7:
  • a conical pin corresponds to inner bevelled surfaces of the slider (not shown) and pushes the slider inwardly or outwardly to effect a tightening.
  • the slides 103.1 13 are guided in lateral grooves R.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

La présente invention concerne un dispositif universel de serrage pour pièce à serrer, comprenant un boîtier (1) doté d'une chambre sous pression (5) remplie d'un moyen de pression, et un couvercle (2) qui ferme le boîtier et la chambre sous pression. Dans la zone du boîtier se trouve un élément (4) d'application de pression qui applique une pression sur le moyen de pression, ainsi qu'un élément de transfert de pression qui transfère la pression du moyen de pression sur un élément de serrage à serrer. Le moyen de pression est un corps solide élastique (6) et la pression peut être réglée et contrôlée de manière variable par l'intermédiaire d'un détecteur de pression (10). De préférence, le moyen de pression est une pâte de silicone d'un seul tenant par laquelle une pression introduite radialement par rapport à l'axe longitudinal du dispositif est transférée axialement sur l'élément de serrage par l'intermédiaire de l'élément de transfert de pression.
EP08783445A 2007-08-15 2008-08-13 Dispositif de serrage et module de base associé Withdrawn EP2178668A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH12882007 2007-08-15
PCT/CH2008/000345 WO2009021345A1 (fr) 2007-08-15 2008-08-13 Dispositif de serrage et module de base associé

Publications (1)

Publication Number Publication Date
EP2178668A1 true EP2178668A1 (fr) 2010-04-28

Family

ID=39111842

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08783445A Withdrawn EP2178668A1 (fr) 2007-08-15 2008-08-13 Dispositif de serrage et module de base associé

Country Status (3)

Country Link
US (1) US20110204552A1 (fr)
EP (1) EP2178668A1 (fr)
WO (1) WO2009021345A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114112682A (zh) * 2021-12-21 2022-03-01 国网北京市电力公司 一种基于bim模型的变电站混凝土试块检测装置及方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114871903B (zh) * 2022-03-11 2023-08-29 恒强铝业股份有限公司 一种铝合金门窗加工辅助设备

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB821969A (en) * 1957-03-07 1959-10-14 Integral Ltd Improvements in chucks for machine tools
SU446383A1 (ru) * 1971-07-15 1974-10-15 Особое Конструкторское Бюро По Проектированию Средств Автоматизации И Контроля И Электроэрозионного Оборудования Мембранный рожковый патрон
SU884880A1 (ru) * 1980-03-11 1981-11-30 Предприятие П/Я Г-4517 Патрон
JPS5981004A (ja) * 1982-10-29 1984-05-10 Pentel Kk ダイヤフラムチヤツク装置
JP2005066748A (ja) * 2003-08-25 2005-03-17 Kosmek Ltd クランプ装置及びクランピングシステム
GB0411686D0 (en) * 2004-05-25 2004-06-30 Westwind Air Bearing Ltd Hydraulic chucks
DE102006033396A1 (de) * 2006-07-13 2008-01-17 Hainbuch Gmbh Spannende Technik Spannfutter und Verfahren zur Herstellung eines Spannfutters
JP4799487B2 (ja) * 2007-06-19 2011-10-26 トヨタ自動車株式会社 ワークの位置決め方法、及び位置決め装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009021345A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114112682A (zh) * 2021-12-21 2022-03-01 国网北京市电力公司 一种基于bim模型的变电站混凝土试块检测装置及方法
CN114112682B (zh) * 2021-12-21 2023-11-14 国网北京市电力公司 一种基于bim模型的变电站混凝土试块检测装置及方法

Also Published As

Publication number Publication date
WO2009021345A1 (fr) 2009-02-19
US20110204552A1 (en) 2011-08-25

Similar Documents

Publication Publication Date Title
EP3287679B1 (fr) Soupape à membrane
EP2821182B1 (fr) Dispositif de serrage pour l'étirement d'un boulon fileté
DE19525574C1 (de) Spannvorrichtung zum genauen gegenseitigen Fixieren zweier Bauteile
DE102005007708A1 (de) Gewindebohreraufnahme
DE102004016305A1 (de) Pressvorrichtung
AT521254A4 (de) Spannvorrichtung
DE102009060785B4 (de) Koaxialventil mit Dichtelement
WO2019020420A1 (fr) Dispositif de fixation
EP2625450B1 (fr) Soupape électromotorisée
EP2669543B1 (fr) Dispositif de ventilation et d'actionnement automatique d'un système de frein
EP0015931A1 (fr) Procede et dispositif pour le vissage de manchons tubulaires
EP2776203B1 (fr) Dispositif de soudage ou de brasage ayant un élément isolant électrique en matériau céramique
EP2178668A1 (fr) Dispositif de serrage et module de base associé
EP2314403B1 (fr) Dispositif de tension
EP3403758A1 (fr) Adaptateur réglable
DE102010043877B3 (de) Hohlfaseranschluss
DE102013218050A1 (de) Spannvorrichtung zum Einspannen mindestens eines Spannnippels
DE102010032340B4 (de) Vorrichtung zum betätigen einer nadelverschlussdüse in einer kunststoffspritzmaschine
DE1602825C3 (de) Vorrichtung zur lösbaren Befestigung eines Spannfutters
DE10157761A1 (de) Druckaufnehmer
DE102004061629A1 (de) Drehtürantrieb
DE8518206U1 (de) Antriebseinheit für rotierende Schaftwerkzeuge
DE102018213712B4 (de) Ventilanordnung
DE102017104718B3 (de) Variable Rührwerkskugelmühle
EP4347141B1 (fr) Système de dosage

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: 20100215

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20130218

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: 20130829