EP1077112B1 - Dispositif pour serrer des pièces à travailler - Google Patents

Dispositif pour serrer des pièces à travailler Download PDF

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Publication number
EP1077112B1
EP1077112B1 EP00114959A EP00114959A EP1077112B1 EP 1077112 B1 EP1077112 B1 EP 1077112B1 EP 00114959 A EP00114959 A EP 00114959A EP 00114959 A EP00114959 A EP 00114959A EP 1077112 B1 EP1077112 B1 EP 1077112B1
Authority
EP
European Patent Office
Prior art keywords
clamping
base element
workpiece
vacuum
workpieces
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.)
Expired - Lifetime
Application number
EP00114959A
Other languages
German (de)
English (en)
Other versions
EP1077112A2 (fr
EP1077112A3 (fr
Inventor
Hugo Dipl.-Ing. Voss
Reinhard Dipl.-Ing. Heimann
Werner Brinkhaus
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.)
Homag Bohrsysteme GmbH
Original Assignee
Gustav Weeke Maschinenbau 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 Gustav Weeke Maschinenbau GmbH filed Critical Gustav Weeke Maschinenbau GmbH
Publication of EP1077112A2 publication Critical patent/EP1077112A2/fr
Publication of EP1077112A3 publication Critical patent/EP1077112A3/fr
Application granted granted Critical
Publication of EP1077112B1 publication Critical patent/EP1077112B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • B25B11/005—Vacuum work holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • B25B11/005—Vacuum work holders
    • B25B11/007—Vacuum work holders portable, e.g. handheld
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/061—Arrangements for positively actuating jaws with fluid drive

Definitions

  • the invention relates to a device for clamping workpieces for cutting or non-cutting machining.
  • a processing station for workpieces made of wood, plastics, light metals or wood substitutes includes a machine tool with an at least three mutually perpendicular axes of the X, Y and Z axis, movable machining head.
  • the workpieces usually plate-shaped or strip-shaped, are adjusted to appropriate processing stations so that a collision of the adjusting and holding device with the editing tools is possible excluded.
  • vacuum clamping devices To adjust the most plate-shaped workpieces in any position in the X, Y-processing plane of the machine tool and hold, so-called vacuum clamping devices are used.
  • These vacuum chucks commonly referred to as vacuum blocks or suction clamps, comprise one or more basic elements, which have on their underside a lower, rarium sealed suction field for fixing on the top of a workpiece space of a machine tool. On its upper side a rarium sealed suction field is also provided, which serves for Saugspannen the workpieces.
  • two vacuum lines can be connected to these suction clamps, one of which is connected to the upper suction field and the other to the lower suction field.
  • the flexible arrangement of the suction clamps makes it possible to that workpieces of any geometry along their edges can be edited while the entire workpiece clamping device is not damaged. Furthermore, the workpiece is easily accessible.
  • suction clamping devices for the workpiece space of a machine tool, in particular for processing of plate-shaped workpieces made of wood or wood-like materials, are well known.
  • the suction clamps are thereby parallel to one another, transversely in the direction of one of the machining axes, e.g. the X-axis, adjustable bar positioned in the direction of the Y-axis positionable.
  • the basic elements With the help of the lower suction field, the basic elements are mounted on the beam of the machine tool.
  • the plate-shaped workpieces are fastened by means of the upper suction field on the upper, accessible side of the Saugspanners. Due to the two independent suction fields, the fixation of the basic elements on the beam and the clamping of the workpieces can be controlled separately.
  • the DE 1 161 519 relates to a vacuum mounting device for holding and aligning workpieces by means of a plurality of suction cups are arranged on mutually substantially parallel support arms, which are interconnected by a cross member, which is arranged opposite the workpieces adjustable pressure piece.
  • a cross member which is arranged opposite the workpieces adjustable pressure piece.
  • the invention has for its object to provide a device for clamping workpieces, which allows safe clamping of strip-shaped workpieces while ensuring safe and trouble-free accessibility.
  • a piston assembly is integrated into the base element, which has on its underside a lower, rarium sealed suction field for fixing on the top of a beam or on the workpiece space of a machine tool.
  • This piston assembly is equipped with a suitable for clamping of sheet-like workpieces made of wood, plastics, wood-like materials or light metals device.
  • the piston assembly is designed so that a workpiece between the mounting position in the upper end of the piston assembly and the top of the base member can be clamped.
  • the suction clamps can be arranged flexibly anywhere on the workpiece support, which provides good accessibility to the workpiece for machining, e.g. Milling, sawing, drilling, or non-cutting machining, e.g. Bending, gluing or the like allows.
  • the clamping device is also quickly positioned and safely mounted against slipping on the workpiece space of a machine tool.
  • the device for clamping workpieces at least two separately switchable vacuum circuits. If there are two separately connectable vacuum circuits, the sucking and fastening of the suction clamp can be done in a first step and the positioning of the workpiece on the device is independent of the attachment of the suction clamp and can be done in a separate step.
  • the device for clamping workpieces according to an advantageous embodiment, a piston assembly such that the mounting position in the bottom of the piston assembly with the side walls of the base member and the bottom wall of the base member forms an evacuable cavity.
  • This embodiment has the advantage that the piston assembly is movable by evacuating the cavity. For clamping the workpiece between the top of the base member and the means for clamping the workpiece thus no further energy source, such as compressed air, hydraulic or the like, is needed.
  • the vacuum supply for evacuation of the cavity in the bottom region of the base element is mounted.
  • the positioning of the vacuum feeder, e.g. consists of hoses, near the workpiece location and in the greatest possible distance from the workpiece clamping plane causes a largely undisturbed accessibility to the workpiece.
  • attachment of the vacuum feed in the bottom region of the base member is in conformity with conventional systems for clamping plate-shaped workpieces, which avoids expensive conversions of the workpiece space.
  • the vacuum supply to evacuate the cavity passes through the bottom wall of the base member.
  • a vacuum supply through the bottom wall of the base element and further by appropriately provided vacuum channels in the bar of the workpiece space avoid interference with the accessibility to the workpiece by vacuum hoses or the like completely.
  • the chip removal during machining is also not hindered by this.
  • Known in the art workpiece locations with bars, the suction ports and the air intake inhibiting or shut-off flow valves can be used without retrofitting.
  • the device for clamping workpieces on the Saugspanner is a clamping claw.
  • Clamps are well-known devices in the art for securely holding components of various geometries. Molded components can also be fixed well by Spannpratzen.
  • the clamping claw is rotatably mounted on the piston assembly. This, in turn, provides greater flexibility in the positioning of the workpiece.
  • the clamping claw is formed asymmetrically.
  • the more suitable part of the clamping claw can be selected for clamping and the other part remain unused or two workpieces, even of different geometry, can be clamped simultaneously.
  • the clamping claw has two different length clamping legs.
  • two workpieces are simultaneously tensioned and machinable, which is achieved by a different length of the clamping leg that depending on the geometry of the workpiece or workpieces of the respective suitable clamping leg can be assigned to the workpiece and thus the workpiece is kept very secure ,
  • the clamping claw is provided on its underside with an elastic coating.
  • This coating prevents slipping of the workpiece and reduces the risk of damage to the workpiece by hard parts of the clamping device.
  • the workpiece clamping device comprises a return spring for the piston assembly.
  • a return spring for the piston assembly By a return spring for the piston assembly, the clamping device, when the vacuum circuit for moving the piston assembly is not active, held in an open state. This means that workpieces can be easily inserted into the clamping device or can be removed from it.
  • the device for clamping workpieces comprises at least one adjustment stop for the workpiece.
  • an adjustment stop has the advantage that workpieces which are stepped on their non-machined side, for example, can be applied more easily and more firmly.
  • the adjustment stop for the workpiece is releasably attached to the device for clamping workpieces. This allows a suitable adjustment stop to be selected and used, depending on the geometry of the workpiece to be machined.
  • the base element consists essentially of plastic.
  • plastic for the base element enables cost-effective production of the base element and also has the advantage that the risk of damage to the machine tool or the tool in an unintentional collision with the base element is much lower than with harder materials, such as steel.
  • the footprint of the base member has one or more Justieranoeuvre.
  • This Justieranelle serve a precise alignment of the primitive.
  • the Justieranelle must be made extremely accurate to ensure proper alignment of the primitive on the machine tool. This offers a price advantage over the adjustment by means of larger areas of the actual bottom surface of the base element, which must then be made in total registration.
  • the base member in the workpiece-facing surface has a ventilation opening.
  • This vent serves to equalize the pressure in the evacuation of the cavity defined by the bottom wall, the side walls of the base member and the piston.
  • a positioning aid for the base element is attached to the base element. This positioning aid facilitates the positioning of the base element on the workpiece space of a machine tool.
  • the piston assembly consists of a piston rod and a piston plate.
  • the construction of the piston rod and piston plate piston assembly allows different geometries of the base member to be used by adjusting the shape of the piston plate.
  • the piston rod can be used as a stop for the workpiece and takes on the actual clamping device.
  • the piston plate serves to seal the cavity defined by the bottom plate of the base member, side walls of the base member and piston assembly, which is suitable for evacuation.
  • a sealing arrangement for sealing against the side walls of the base member is attached to the outside of the piston plate.
  • the sealing arrangement is designed so that it allows on the one hand a sliding of the piston assembly along the base element, on the other hand ensures a reliable sealing of the evacuable cavity.
  • a conventional sealing arrangement e.g. an O-ring, allows a relative to a seal by, for example, good tolerance comparatively cost-effective sealing of the cavity.
  • the device for clamping workpieces comprises a guide element for the piston rod.
  • a guide element By a guide element, the risk of tilting or twisting of the piston rod is reduced and allows a one-sided clamping of a workpiece in the arrangement.
  • the guide of the piston rod can serve to receive the return spring for the piston arrangement.
  • the guide element for the piston rod is mounted in the evacuable cavity of the base element. This offers the advantage of a compact design of the arrangement and also the least possible impairment of accessibility to the workpiece to be machined.
  • Fig. 1 a first embodiment of the device for clamping workpieces 50 is shown, wherein two different workpieces 33, 34 are tensioned.
  • the device comprises a base element 10, which can be mounted on the footprint 32 on the workpiece space via a bottom wall 17.
  • the attachment of the base element 10 on the workpiece space of a machine tool for the machining or non-cutting machining of workpieces, e.g. Drilling, milling, sawing or gluing and bending is done in the illustrated embodiment of the primitive via a series of suction openings at the top of a beam on the workpiece space of a machine tool, which interact with the vacuum devices 31 in the bottom region of the base element.
  • the vacuum supply 19 to the suction openings in the workpiece space, which corresponds to a first vacuum circuit is shown schematically.
  • This basic element can be evacuated in another (not shown) embodiment instead of directly via suction openings with valves on the beam of the machine tool, be evacuated via laterally mounted hoses. However, then caused by the hoses a certain impairment of accessibility to the workpiece.
  • a positioning aid 28 is attached to the base element 10 in the in Fig. 1 illustrated embodiment.
  • These Positioning aid serves to be able to align the base element on designated bar of the workpiece location of a machine tool in the X, Y plane. This process can be done either by hand or with the help of robots.
  • the basic element 10 is aligned by means of the alignment stops 27 on the workpiece space of the machine tool with respect to the horizontal.
  • a piston assembly 13 is integrated.
  • the piston assembly 13 consists of a piston rod 14 and a piston plate 15.
  • the piston rod 14 is guided through an opening in the installed position top of the base member.
  • the piston plate 15 is designed so that it substantially corresponds to the geometry of the bottom surface of the base member 10 and thus creates a kind of intermediate wall between the bottom wall of the base member 10 and the upper wall of the base member 10.
  • a sealing device 30 is circumferentially mounted on the side surface of the piston plate 15.
  • the sealing device 30 may be, for example, a rubber seal such as an O-ring. Of course, any other conventional seal in the art may be used which simultaneously allows the piston plate 15 to slide along the side wall of the base member 10.
  • a guide 12 is provided for the piston assembly 13 in the interior of the base member 10.
  • the attachment of a guide for the piston device 13 in the interior of the base member 10 causes the space between the base member 10 and the top of the piston rod 14 is not affected by additional guide elements. This simplifies the clamping of the workpiece in the device and accessibility to Workpiece is not limited by the guide device.
  • a return spring 25 is mounted in the guide device 12 for the piston device 13. This return spring 25 acts so that the piston assembly 13 is held by the return spring in a position which is characterized in that the distance between the top of the piston device 13 and top of the base member 10 is greater than a workpiece to be machined 33, 34.
  • a fastener 16 which may be, for example, a conventional screw, a clamping claw 20.
  • the fastener 16 is advantageously designed so that the clamping claw 20 can be fixed in any angular position and thus is extremely flexible in terms of clamping of the workpiece.
  • the clamping claw preferably has on its underside an elastic coating 21. This elastic coating serves to largely prevent slippage of the workpiece 33, 34 and also to protect the workpiece against damage by the clamping claw.
  • clamping jaw is asymmetrical and has a shorter clamping leg 22 and a longer clamping leg 23. This design increases the flexibility in terms of configuration and geometry of the workpieces 33, 34th
  • the apparatus further comprises one or more adjustment stops for the workpiece or workpieces.
  • This Justieranschlag 29 is not fixed to the base member 10 or the piston device 13 is connected. That allows one simple replacement of the Justieranschlags 29 depending on the geometry of the workpiece 33rd
  • a means for supplying the vacuum 24 is provided in the bottom wall of the base member 10.
  • this vacuum supply 24 is connected to a tube consisting of a vacuum line 18, which in turn establishes the connection to a second vacuum circuit of the machine tool.
  • the cavity 11 can be evacuated.
  • the base member 10 includes a ventilation opening 26.
  • air can flow into the cavity formed by the top of the piston plate 15, the side walls of the base member 10 and the upper wall of the base member 10 and thus for a Ensuring pressure equalization during piston movement.
  • Fig. 2 is a similar device for clamping workpieces as in Fig. 1 shown.
  • the vacuum supply to the defined by the bottom wall and side walls of the base member 10 and the piston plate 15 cavity is designed so that it passes through the bottom wall of the base member 10 and on the footprint 32 of the base member 10 with suction openings at the top of a beam on the workpiece space a Machine tool interacts, and so the connection between vacuum supply 18 and evacuable cavity 11 is made. This eliminates hoses on the workpiece table completely.
  • Fig. 3 is a plan view of a device for clamping workpieces, as in the Fig. 1 or 2 shown is shown.
  • the clamping claw 20 is in any angular position through the fastener 16, about one Screw, adjustable. This allows great flexibility in the clamping of a workpiece.
  • Fig. 1 Let's briefly describe the operation of the device for clamping workpieces in the following.
  • the Saugspanner which essentially corresponds to the base member 10 is placed on a space provided on a bar of a workpiece space of a machine tool is aligned by means of the adjusting means 27, 28. Subsequently, a first vacuum circuit is activated, so that the base member 10 is fixed by the vacuum spaces 31 and the vacuum supply 19 on the workpiece space of the machine tool.
  • the exact positioning of the base element 10 in the X, Y plane is done previously on the positioning aid 28th
  • clamping claw 20 can be brought by turning into a position corresponding to a the desired processing allows satisfactory accessibility to the workpiece.
  • a second vacuum circuit is activated via a vacuum supply 18, 24, so that the cavity formed by the lower wall of the base member, the side walls of the base member 10 and the piston plate 15 is evacuated.
  • a vacuum supply 18, 24 By connecting the second vacuum circuit, a second vacuum circuit is activated via a vacuum supply 18, 24, so that the cavity formed by the lower wall of the base member, the side walls of the base member 10 and the piston plate 15 is evacuated.
  • the piston assembly 13 is moved in the installed position down, against tilting or twisting guided by the guide member 12.
  • the workpiece or the workpieces 33, 34 clamped between clamping claw 20 and the top of the base member 10 and can be edited.
  • unintentional release of the workpiece which may also be a strip-shaped workpiece, is excluded.
  • the vacuum in the evacuated cavity 11 via the feeders 18, 24 is deactivated, the spring force of the return spring 25 can thus push the piston device 13 and the clamping claw 20 upwards and the workpiece can be removed from the device.
  • the essential aspect of the inventive device for clamping workpieces is that even strip-shaped components can be stretched, and still retain the benefits of clamping workpieces by means of suction, in particular the good accessibility to the workpiece.
  • no location-dependent EnergyzuWORK einen, such as for compressed air or hydraulic, necessary, but already widely used for clamping plate-shaped workpieces vacuum devices can also be used in the processing of strip-like components.
  • the system is completely tubeless and therefore very flexible.
  • the chips produced during machining can not be caught in the hoses for supply to the evacuation units.
  • the system offers a high degree of safety with regard to the attachment of the workpieces, since a vacuum interrogation can easily and reliably detect any faults. This in turn reduces the risk of accidents.

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

Claims (20)

  1. Dispositif pour serrer des pièces d'oeuvre (50) pour un usinage avec ou sans production de copeaux, comprenant :
    un dispositif de serrage à vide et un élément de base (10), susceptible d'être fixé sur une surface de travail au moyen du dispositif de serrage à vide (19) ;
    - où un agencement à piston est monté dans l'élément de base (10), de manière qu'un élément de l'agencement à piston (13), en position montée, fasse saillie sur la face supérieure de l'élément de base (10) lorsque l'agencement à piston (13) est déployé ; et un dispositif pour serrer des pièces d'oeuvre (20) est monté sur l'élément, faisant saillie sur la face supérieure de l'élément de base (10), de l'agencement à piston (13), lorsque l'agencement à piston (13) est déployé, et en ce que le dispositif comprend au moins deux circuits à vide susceptible d'être raccordés séparément,
    caractérisé en ce qu'
    un premier circuit à vide fixe l'élément de base (10) sur la surface de travail, et un deuxième circuit à vide serre une pièce d'oeuvre (33, 34) entre le dispositif pour serrer des pièces d'oeuvre (20) et la face supérieure de l'élément de base (10).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    la face inférieure, en position montée, de l'agencement à piston (13) forme, avec les parois latérales de l'élément de base (10) et la paroi de fond (17) de l'élément de base (10), un espace creux (11) susceptible d'être placé sous vide.
  3. Dispositif selon la revendication 2,
    caractérisé en ce qu'
    une amenée de vide (18), pour mettre l'espace creux (11) sous vide, est montée dans la zone de fond de l'élément de base (10).
  4. Dispositif selon la revendication 3,
    caractérisé en ce que
    l'amenée de vide (18) s'étend à travers la paroi de fond (17) de l'élément de base (10).
  5. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    le dispositif pour serrer des pies d'oeuvre est une griffe de serrage (20).
  6. Dispositif selon la revendication 5,
    caractérisé en ce que
    la griffe de serrage (20) est montée à rotation sur l'agencement à piston (13).
  7. Dispositif selon l'une des revendications 5 ou 6,
    caractérisé en ce que
    la griffe de serrage (20) est de configuration asymétrique.
  8. Dispositif selon l'une des revendications 5 à 7,
    caractérisé en ce que
    la griffe de serrage (20) comprend deux branches de serrage (22, 23) de longueur différente.
  9. Dispositif selon l'une des revendications 5 à 8,
    caractérisé en ce que
    la griffe de serrage (20) est munie d'un revêtement (21) élastique en face inférieure.
  10. Dispositif selon l'une des revendications précédentes,
    comprenant en outre
    un ressort de rappel (25) pour l'agencement à piston (13).
  11. Dispositif selon l'une des revendications précédentes,
    comprenant en outre
    une butée d'ajustement (29) pour la pièce d'oeuvre.
  12. Dispositif selon la revendication 11,
    caractérisé en ce que
    la butée d'ajustement est montée de manière désolidarisable sur le dispositif.
  13. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    l'élément de base (10) est composé essentiellement de matière synthétique.
  14. Dispositif selon la revendication 13,
    caractérisé en ce que
    l'élément de base (10) comprend une surface de pose (17) avec au moins une butée d'ajustement (27).
  15. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    une ouverture d'aération (26) et prévue dans la surface, tournée vers la pièce d'oeuvre, de l'élément de base (10).
  16. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce qu'
    une aide au positionnement (28) pour l'élément de base est montée sur l'élément de base (10).
  17. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    l'agencement à piston (13) est composé d'une tige de piston (14) et d'une plaque de piston (15).
  18. Dispositif selon la revendication 17,
    caractérisé en ce qu'
    un dispositif d'étanchéité (30) est monté sur la face extérieure de la plaque de piston.
  19. Dispositif selon l'une des revendications précédentes,
    comprenant en outre
    un élément de guidage (12) pour la tige de piston (14).
  20. Dispositif selon la revendication 19,
    caractérisé en ce que
    l'élément de guidage est fixé dans l'espace creux (11) susceptible d'être mis sous vide.
EP00114959A 1999-08-17 2000-07-19 Dispositif pour serrer des pièces à travailler Expired - Lifetime EP1077112B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19938851 1999-08-17
DE19938851A DE19938851B4 (de) 1999-08-17 1999-08-17 Vorrichtung zum Spannen von Werkstücken

Publications (3)

Publication Number Publication Date
EP1077112A2 EP1077112A2 (fr) 2001-02-21
EP1077112A3 EP1077112A3 (fr) 2002-08-14
EP1077112B1 true EP1077112B1 (fr) 2010-03-03

Family

ID=7918586

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00114959A Expired - Lifetime EP1077112B1 (fr) 1999-08-17 2000-07-19 Dispositif pour serrer des pièces à travailler

Country Status (3)

Country Link
EP (1) EP1077112B1 (fr)
AT (1) ATE459454T1 (fr)
DE (2) DE19938851B4 (fr)

Families Citing this family (10)

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Publication number Priority date Publication date Assignee Title
DE102005020801A1 (de) * 2005-04-28 2006-11-02 Reich Spezialmaschinen Gmbh Haltevorrichtung für zu bearbeitende Werkstücke sowie Vakuumspannsystem mit einer derartigen Haltevorrichtung
DE102007016457B4 (de) 2007-03-30 2013-04-25 J. Schmalz Gmbh Pneumatisch betätigbare Fixiereinrichtung
DE102009032703A1 (de) 2009-07-09 2011-01-13 Mtu Aero Engines Gmbh Vorrichtung und Verfahren zum Anordnen eines Bauteils an einem Bauteilträger
DE102011012739A1 (de) * 2011-02-24 2012-08-30 Michael Weinig Ag Spanneinrichtung für Werkstücke aus Holz, Kunststoff und dergleichen
DE102014222423A1 (de) 2014-11-03 2016-05-04 Homag Holzbearbeitungssysteme Gmbh Spannvorrichtung
DE202017102182U1 (de) * 2017-04-11 2018-07-12 Grünewald Treppenfertigung GmbH Vorrichtung zur Halterung eines Werkstücks mittels Unterdruck auf einem Bearbeitungstisch
CN112045791A (zh) * 2020-09-04 2020-12-08 安徽艾雅伦新材料科技有限公司 一种木塑地板生产用切割机及其工作方法
DE102020132391A1 (de) 2020-12-07 2022-06-09 Ima Schelling Deutschland Gmbh Spanneinrichtung
CN114536066A (zh) * 2022-04-08 2022-05-27 江苏安全技术职业学院 一种电气自动化可旋转钻孔件夹具
DE102023118806A1 (de) 2023-07-17 2025-01-23 J.Schmalz Gmbh Spannvorrichtung sowie Spannsystem umfassend eine Spannvorrichtung und eine Konsole

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Publication number Priority date Publication date Assignee Title
DE1161519B (de) * 1961-05-24 1964-01-16 Erwin Lothar Holland Merten Vakuum-Montagegeraet
US3476377A (en) * 1967-10-19 1969-11-04 Mattel Inc Sheet clamping couple
US5312094A (en) * 1993-01-21 1994-05-17 Zera Robert D Vacuum clamp
DE4404413C1 (de) * 1994-02-11 1995-01-19 Klessmann Ima Norte Maschfab Vakuumspannvorrichtung
US5899445A (en) * 1996-04-18 1999-05-04 Kimble; Alvin J. Locking ring vacuum clamping system with load/unload capabilities
US5883522A (en) * 1996-11-07 1999-03-16 National Semiconductor Corporation Apparatus and method for retaining a semiconductor wafer during testing
FR2763877B1 (fr) * 1997-05-30 1999-08-27 Itb Dispositif de fixation d'une piece plane par depression d'air de type table a depression pour centre d'usinage

Also Published As

Publication number Publication date
DE19938851A1 (de) 2001-03-08
DE50015876D1 (de) 2010-04-15
DE19938851B4 (de) 2005-04-07
EP1077112A2 (fr) 2001-02-21
EP1077112A3 (fr) 2002-08-14
ATE459454T1 (de) 2010-03-15

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