WO1993004815A1 - Dispositif de serrage de pieces sur des machines a usiner ou a mesurer - Google Patents

Dispositif de serrage de pieces sur des machines a usiner ou a mesurer Download PDF

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Publication number
WO1993004815A1
WO1993004815A1 PCT/EP1992/002093 EP9202093W WO9304815A1 WO 1993004815 A1 WO1993004815 A1 WO 1993004815A1 EP 9202093 W EP9202093 W EP 9202093W WO 9304815 A1 WO9304815 A1 WO 9304815A1
Authority
WO
WIPO (PCT)
Prior art keywords
clamping
bores
grid
plate
holes
Prior art date
Application number
PCT/EP1992/002093
Other languages
German (de)
English (en)
Inventor
Wolfgang Wuchner
Original Assignee
Max Lieder Gmbh Maschinen- Und Vorrichtungsbau
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 Max Lieder Gmbh Maschinen- Und Vorrichtungsbau filed Critical Max Lieder Gmbh Maschinen- Und Vorrichtungsbau
Publication of WO1993004815A1 publication Critical patent/WO1993004815A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/10—Auxiliary devices, e.g. bolsters, extension members
    • B23Q3/103—Constructional elements used for constructing 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

Definitions

  • Clamping device for clamping workpieces on processing and measuring machines
  • the present invention relates to a clamping device of the type mentioned in the preamble of claim 1.
  • Clamping devices of this type have the task of securely holding the workpiece on the clamping plate even under the action of large machining forces and of aligning the workpiece precisely with respect to the machine-fixed coordinate system.
  • clamping with four clamping units also has the basic disadvantage that it generally results in a determination of the workpiece fixation.
  • a clamping plate is already known from DE-OS 22 32 387, in which parallel and symmetrical rows of fixing bores are provided in each case with regularly distributed radial dials.
  • this arrangement allows workpieces to be centered at the center of the clamping plate, for example using three clamping units, it does not allow clamping in two mutually perpendicular main axis directions of the machine.
  • Another disadvantage is that the fixing holes of the known clamping plate not all of them lie on rows parallel to one another or columns perpendicular thereto, so that the generally highest accuracy of two mutually perpendicular machine guides cannot be used in the manufacture of the clamping plate, but an angle coordinate that is generally less precise comes into play.
  • All grid bores are arranged in rows parallel to one another, so that the high guiding accuracy of conventional machining centers can be used in the manufacture of the clamping plate.
  • This arrangement of the grid bores according to the invention results on the one hand in a grid pattern arranged in rows and columns, in which the grid bores are arranged on the one hand along said parallel rows and on the other hand in columns running at right angles thereto; this enables in a known manner clamping in mutually perpendicular directions.
  • there is a grid pattern of the highest precision oriented radially to a center which is based on the manufacturing accuracy of the grid holes arranged in the row and column direction. This enables high-precision centering to a specified center of the clamping plate.
  • each of the grid bores can be used as the center, since the grid pattern is repeated exactly in the spacing of the grid bores.
  • the grid pattern is repeated with respect to a selected center point in each case after an angle step of 60 °, so that there are six equivalent radial clamping directions with respect to a center point.
  • the clamping units each have at least one group of fastening bores arranged according to a basic triangle of the clamping plate. It can be shown that with a group of fastening bores arranged according to a basic triangle of the clamping plate, six clamping directions are possible with respect to a center point, two of which clamping directions lie in the direction of the parallel rows mentioned.
  • a first row of grid holes of the clamping plate runs through the center of this clamping plate and that the grid holes of this first row are arranged symmetrically to the center. That achieved one, for example, in that one of the raster bores lies in this center.
  • the clamping plate is designed as a circular plate; the above-mentioned first row of grid holes lies on a diameter of this circular plate, a grid hole being arranged in the center of the circular plate.
  • the clamping units each have a plurality of parallel rows of fastening bores arranged in accordance with the arrangement of the locking bores of the clamping plate. Since the grid pattern of the grid holes of the clamping plate is repeated several times in the clamping units, the possibilities of different arrangements and orientations of the clamping units on the clamping plate are further increased. It is preferably provided that the clamping units each have three rows of fastening bores, the fastening bores of the middle row being designed as fitting bores. These are used only for the precise alignment of the clamping units on the clamping plate, while the other fastening bores serve for receiving fastening bolts, as will be explained in more detail with reference to an exemplary embodiment.
  • the clamping units each have a lower part provided with fastening bores and an upper part which is displaceably guided thereon and can be clamped in its displacement positions.
  • the lower part is first fastened to the clamping plate in the area in which the workpiece is to be held; the exact alignment of the clamping unit to the workpiece is done by moving the upper part.
  • the upper part is on a front face in the direction of displacement provided with a central clamping surface which is transverse to the direction of displacement and which can rest against the workpiece.
  • the central clamping surface of the upper part is connected at least on one side with a lateral clamping surface at an angle of 30 ° to this central clamping surface.
  • the number of possible clamping directions can be increased again by this arrangement, whereby the universality of the device is further increased.
  • a further embodiment of the invention provides that an adjusting threaded bolt aligned in the direction of displacement of the upper part is arranged on the lower part, said threaded bolt facing away from an actuating surface of the upper part facing away from the central clamping surface is deliverable.
  • fitting bores and / or threaded bores are provided on the upper side of the upper part for fastening further tensioning means, stop means and the like.
  • the grid holes of the clamping plate are preferably all the same, inserts are provided for forming at least individual grid holes in fitting holes. In this way, each of the grid holes can either be used for precise alignment or for fastening the clamping units on the clamping plate.
  • a modular clamping unit is provided, which is essentially formed from a clamping foot that can be mounted on the grid plate with its clamping surface and from a cylindrical shaft that extends perpendicular to the clamping surface, the upper side of the shaft being arranged parallel to the clamping surface and is designed as a further clamping surface, and the clamping plate is provided on its circumference with bores adapted to the grid dimension of the grid plate.
  • Such a clamping unit made of a central cylindrical shaft with at least one clamping surface on the top and with a clamping foot that can be mounted on the grid plate is simple to manufacture and has the rigidity necessary for securely clamping the workpieces on the grid plate, in particular bending and Torsional stiffness.
  • the shaft of the tensioning unit is solid and integrally formed with the tensioning foot, a circumferential recess being provided between the tensioning foot and the shaft to form a free space for bores formed in the tensioning foot.
  • the outer surface of the shaft of the clamping unit is provided with a further clamping surface, which is arranged in a plane parallel to the axis of the shaft and is provided with holes with a grid dimension.
  • the clamping unit Due to the cylindrical shaft with a circular cross section, the clamping unit is extremely resistant to bending and torsion. To clamp the workpieces, a circumferential surface of the cylindrical shaft that is cut continuously or partially by a flattening is usually sufficient, which, depending on the use of the clamping unit, can be aligned by rotating the clamping unit about its vertical axis.
  • disk-cylindrical position elements are provided, the upper and lower sides of which are provided with holes adapted to the clamping surface provided on the upper side of the shaft of the clamping unit.
  • the shaft of the clamping unit is formed in a hollow cylinder and in one piece with the clamping foot that can be mounted on the grid plate, the clamping foot projecting circumferentially beyond the shaft and also being adapted to the grid dimension of the grid plate Bores is provided and the top of the hollow cylindrical shaft is closed and provided with an axial through hole.
  • a clamping unit is used to fasten clamping arms for depressing workpieces in the direction of the grid plate.
  • FIG. 1 shows a plan view of a clamping device with a clamping plate and three clamping units
  • Figure 2 shows an enlarged view
  • FIG. 3 shows a perspective exploded view of a clamping unit with a lower part and an upper part
  • Figure 4 is a plan view. the lower part of a clamping unit
  • FIG. 5 shows a cross section through the lower part according to FIG. 4 along the section line V-V;
  • Figure 6 is a plan view of the top of the
  • Figure 8 is a side view of the top
  • FIG. 9 shows a perspective illustration of a tensioning unit in another embodiment
  • Figure 10 is a perspective view of the
  • FIG. 11 shows the positioning element from FIG. 10 in a different perspective view
  • a, b, c are perspective representations of three further, circular-cylindrical positioning elements
  • FIG. 13 shows a further embodiment 'of a mountable on a grid plate clamping unit
  • FIG. 15 shows the perspective top view of a grid plate with mounted clamping units in the embodiment according to FIG. 9 and FIG. 13,
  • Figure 16 is a perspective view of a grid plate with mounted workpiece
  • FIG. 17 shows a further perspective illustration of a grid plate with another workpiece mounted on it.
  • FIG. 1 shows a circular clamping plate 2 with latching bores 4, which are shown in FIG. 1 as axis crosses which denote the center of these bores.
  • the grid holes 4 are arranged on mutually parallel rows R1, R2 ... Rn, the distance a of the grid holes 4 in a row always being the same.
  • the arrangement pattern is repeated, starting from any radial row of bores, in each case after an angular distance of 60 ° with respect to the plate center 8, the grid bores of a row being arranged symmetrically with respect to this center 8.
  • the grid bores 4 can be produced, for example, on a machining center using two work table guides that run at right angles to one another, with which a high arrangement accuracy can be achieved.
  • the clamping plate 2 is assigned three clamping units 10, 12, 14 in FIG. 1, which are used for clamping and centering a workpiece 16, for example circular, shown in phantom in FIG.
  • the clamping units 10, 12, 14 are each arranged at an angle of 120 ° to one another. They are clamped radially against the workpiece 16, which results in a statically determined three-point clamping.
  • the clamping units 10, 12, 14 have the grid pattern of Clamping plate 2 matched mounting holes through which they can be fastened to the clamping plate 2, as will be explained in more detail with reference to the following drawings.
  • each clamping unit essentially consists of a lower part 18 and an upper part 20.
  • the fastening bores for fastening the clamping units are each formed on the lower part 18, so that this corresponds to the grid pattern of the clamping plate 2 in different discrete positions can be attached to the clamping plate 2.
  • the lower part 18 has three rows of fastening bores, the middle row r1 being formed from grid bores from highly precise fitting bores 22, while the two outer rows r2, r3 consist of fastening bores 24.
  • the fastening bores 24 have, in a manner known per se, an enlarged part for receiving a screw head flush.
  • the rows rl, r2, r3 run in the longitudinal direction of the lower parts 18, so that the distance between the holes in the longitudinal direction is equal to a and the distance between the rows rl, r2, r3 from each other is equal to c .
  • the clamping unit can thus be aligned in directions parallel to the sides of the basic triangle 6.
  • the lower part in such a way that the rows of holes are arranged transversely, the fastening bores being at a distance a in the transverse direction and the rows being at a distance c from one another in the longitudinal direction.
  • the clamping units 10 to 14 can thus also be arranged at right angles to the rows Rl to Rn of the clamping plate, as was not shown in more detail.
  • threaded bores 28 are arranged between the fastening bores 24, which are used to fasten the upper part 20 to the lower part 18.
  • the lower part is provided with an upwardly open central longitudinal groove 30 into which a guide bar 32 formed on the underside of the upper part 20 engages, so that the upper part 20 is guided longitudinally on the lower part 18.
  • elongated holes 34 associated with the threaded bores 28 are formed, through which fastening bolts can be inserted and screwed into the threaded bores 28 of the lower part. As FIG. 7 in particular shows, the elongated holes 34 are widened upward in a manner known per se for the flush reception of the bolt buttons.
  • the guide bar 32 forms a central clamping surface 36 on its front side with respect to the direction of displacement, which is intended to rest against a workpiece.
  • a bearing plate 4.6 which is provided with a central threaded bore 48, is screwed onto the rear of the lower part 18.
  • an adjusting threaded bolt 50 is screwed into the threaded bore 48 and its front end can be placed against the upper part 20, so that by rotating the adjusting threaded bolt 50 the upper part 20 relative to the lower part 18 is longitudinally adjustable.
  • Exact gauge blocks can also be inserted between the bearing plate 46 and the upper part 20 in order to precisely fix the position of the upper part 20 relative to the lower part 18.
  • the radial arrangement pattern of the raster bores 4 related to " the center 8 " is repeated in angular steps of 60 °, so that the clamping units can be arranged on six different radials and parallel rows of bores
  • the radials lying on the middle row R0 correspond at the same time to an axis of a right-angled axis system; in order to be able to fasten clamping units also in an axial direction perpendicular to them, the arrangement pattern of the fastening bores of the lower part need only be in the manner described above be changed slightly so that the hole spacing is equal to a in the transverse direction and c in the longitudinal direction.
  • the lower parts 18 are first offset by 120 ° and fastened on the clamping plate in such a way that their positions are rough correspond to the dimensions of the workpiece 16. Then the upper parts 20 are put on and finely adjusted by means of the adjusting threaded bolts 50 until the central clamping surfaces 36 bear against the workpiece 16. The upper parts 20 are then fixed on the lower parts 18 by means of screw bolts 52 screwed through the elongated holes 24 into the threaded bores 28.
  • two clamping units arranged on the row of holes R0, opposing one another and two clamping units of the special type described further above can be used.
  • clamping units of the type described with the reference numerals 10 to 14 the lateral clamping surface 40 being brought into contact with the workpiece, for example, in the alignment corresponding to the clamping unit 10.
  • the clamping unit which can be mounted on a grid plate 101 of a modular grid clamping device, hereinafter referred to as structural elements 102, in the embodiment according to FIGS. 9 and 10 consists of a solid cylindrical shaft 10.3 made of a metallic one, for heat treatment or surface coating suitable material, which is provided with a circumferential recess 104 to form a free space 105 which separates the solid shaft 102 from a clamping foot 106 which can be mounted on the grid plate 101 and which is formed in one piece with the shaft 103.
  • the clamping foot 106 can be mounted on the grid plate 101 with its lower clamping surface 107.
  • Through bores 108 are formed, which are arranged in the grid dimension of the grid plate 101.
  • the upper side 109 of the solid shaft 103 is arranged parallel to the clamping surface 107 of the clamping foot 106 and is designed as a clamping surface 110, which is provided with threaded bores 111, which are also arranged in a grid dimension.
  • the axis 112 of the cylindrical shaft 103 is perpendicular to the clamping surface 107 of the clamping foot 106 and perpendicular to the clamping surface 110 of the upper side 109 of the shaft 103.
  • Fit holes 111A are provided coaxially to the axis 112.
  • the outer surface of the shaft 103 of the structural element 102 is provided with a further clamping surface 113, which is arranged in a plane parallel to the axis 112 of the shaft 103 and is provided with threaded bores 114, which are also arranged in the grid dimension of the grid plate 101.
  • FIG. 10 shows the structural element 102 according to FIG. 9 with a positioning element 115 screwed to its clamping surface 113, which is shown again individually in FIG. 11.
  • the positioning element 115 consists of a cylindrical piece with a flattening 116 parallel to the axis, the bores 117 of which have the pitch of the threaded bores 114 of the clamping surface 113 of the structural element 102.
  • the bores 117 are through bores which are drilled out from the round side for the use of screw heads.
  • the upper and lower side of the positioning element 115 is provided with threaded bores 118 lying on a radius, which are formed on the flat side 116 opposite the flat side of the upper and lower sides of the positioning element 115.
  • FIGS. 12a, b and c show disc-cylindrical positioning elements 121, 122, 123 for mounting on the top side 109 of the mounting element 102 in the embodiment according to FIGS. 9 and 10. All three positioning elements 121, 122 and 123 have on their tops Milled 124 at an angle of 120 ° to one another, in the area of which axially parallel through bores 125 are formed.
  • Threaded bores 126, 127 are formed from the upper side of the positioning elements 121, 122 and 123 at an angle shifted at 60 ° to the three cutouts 124, the threaded bores 126 being used for all three positioning elements 121, 122 and 123 on a large outer radius and the threaded holes 127 are provided only on the positioning element 121 on a smaller inner radius.
  • a central fitting bore 128 is formed in the axis of each of the positioning elements 121, 122, 123.
  • FIG. 13 shows a second embodiment of the structural element 132 that can be mounted on a grid plate.
  • the shaft 133 is of hollow cylindrical design and is provided with a clamping foot 136 which projects circumferentially over the shaft 132 and has a lower clamping surface 137.
  • the clamping foot 136 carries a ring of through bores 138 which are arranged in the grid dimension of the grid plate 101.
  • the tensioning foot 136 has a flattened side surface 135.
  • the hollow cylindrical shaft 133 which is formed in one piece with the clamping foot 136, is closed at its upper end and has a central threaded bore 139 in the upper clamping surface 140.
  • the guide sleeve 142 comprises a lower clamping ring 145 with opposing flats 146 for engaging a tool and a threaded bore 147 located in the axis, the upper part of which has the thread dimension for the threaded bolt 143 and the lower part of which has the thread dimension for the threaded bolt 144. This is used for screwing into the threaded bore 139 in the clamping surface 140, the guide sleeve 142 being fixed thereon.
  • the clamping bar 141 which has a bore 148 on its underside, engages over the cylindrical shaft 149 of the guide sleeve 142 and is screwed by means of the threaded screw 143 against the clamping collar 145 of the guide sleeve 142, the head of the threaded screw 143 on the surface ⁇ che the clamping iron 141 supports.
  • This comprises a cantilever arm 150, which is used to clamp a workpiece.
  • a grid plate 101 is shown in FIG. 15, onto which components 102, 132 with associated positioning elements 115, 121, 122, 123 or clamping bars 141 and guide sleeves 142 are placed. It can be seen here that a modular design is possible, especially since the various elements of the grid clamping device can be assembled in a modular manner.
  • a workpiece is illustrated 151 that • by means of elements on a raster plate 101 more philosophicalele- 102 is mounted over, 132.
  • a construction element 132 with a guide sleeve 142 thereon with clamping iron 141.
  • FIG. 17 shows the independent, paired arrangement of the positioning elements 115 with their flats 116 directly on a grid plate 101, the paired positioning elements 115 with their cylindrical lateral surfaces forming a prismatic guide for a cylindrical workpiece 152.
  • Two construction elements 132 are mounted on both sides of the one pair of positioning elements 115 on the grid plate 101 and carry a yoke 153 which is screwed onto the construction elements 132 by means of fastening screws 154.
  • a central clamping screw 155 serves to depress the cylindrical workpiece 152 in the through 'the polyvinyl sitioniermaschinem 115 is formed.
  • the grid dimension of the grid plate 101 consists of a matrix of through bores or threaded bores arranged in rows and columns, as described above.
  • the resulting grid dimension is also used in the bores of the clamping surfaces 110, 113 and 140.
  • the structural element shown in FIG. 17, formed by the elements 132, 153, represents a clamping yoke known per se.
  • the length of the cross member 153 or the distance between the two bores for receiving the clamping screws 154 is again based on the pitch of the frame ⁇ disk matched.

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

Abstract

Un dispositif de serrage de pièces comprend une plaque de serrage avec des trous agencés en rangées parallèles qui forment un quadrillage régulier afin de fixer des unités de serrage associées à la plaque de serrage. Les trous (4) de rangées adjacentes sont mutuellement décalés de la moitié de la distance entre les trous (b = a/2) et la distance (c) entre les rangées est égale à c = a/2 3, de sorte que l'on obtient des groupes de trois trous de fixation (4) situés aux sommets d'un triangle de base équilatéral imaginaire (6). Les unités de serrage (10, 12, 14) comprennent chacune au moins un groupe de trous de fixation (22, 24) agencés de manière correspondant à un triangle de base de la plaque de serrage (2). Cet agencement des trous permet d'obtenir des rangées de trous librement centrées par rapport à un point central voulu de la plaque de serrage, ainsi que des trous agencés en rangées et en colonnes perpendiculaires, de sorte que tous les serrages sont possibles avec ce dispositif.
PCT/EP1992/002093 1991-09-11 1992-09-11 Dispositif de serrage de pieces sur des machines a usiner ou a mesurer WO1993004815A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4130602.3 1991-09-11
DE19914130602 DE4130602A1 (de) 1991-09-11 1991-09-11 Spanneinrichtung zum zentrieren von werkstuecken

Publications (1)

Publication Number Publication Date
WO1993004815A1 true WO1993004815A1 (fr) 1993-03-18

Family

ID=6440602

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1992/002093 WO1993004815A1 (fr) 1991-09-11 1992-09-11 Dispositif de serrage de pieces sur des machines a usiner ou a mesurer

Country Status (3)

Country Link
AU (1) AU2565292A (fr)
DE (1) DE4130602A1 (fr)
WO (1) WO1993004815A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009074273A2 (fr) * 2007-12-13 2009-06-18 Kramer W Dietmar Dispositif pour serrer un porte-outil sur un mandrin de serrage pouvant être fixé sur une machine d'usinage
CN101623772B (zh) * 2009-08-13 2011-08-31 沈阳飞机工业（集团）有限公司 用于孔系组合夹具的中孔支承板
CN106271351A (zh) * 2015-05-28 2017-01-04 安顺市晶英科技研发有限责任公司 一种三角形管件用焊接夹具

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4437830A1 (de) * 1994-10-14 1996-04-18 Zunker Thorsten Dreibackenfutter zum Einspannen von Werkstücken
DE19857415B4 (de) * 1998-12-12 2005-03-10 Audi Ag Spannvorrichtung
DE10021902A1 (de) * 2000-05-05 2001-11-15 Daimler Chrysler Ag Spannsystem
DE10214328A1 (de) * 2002-03-28 2003-10-16 Thomas Herbert Drittenpreis Vorrichtung für die Aufnahme von zu bearbeitenden Werkstücken
DE10220054B4 (de) * 2002-05-04 2005-03-10 Pfaff Aqs Gmbh Einspannvorrichtung
DE202006001505U1 (de) * 2006-02-01 2007-06-14 Staudinger, Karl Halterung für eine Spanneinheit

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US2147800A (en) * 1937-01-08 1939-02-21 Paul H Sadowski Work holder
FR2465555A1 (fr) * 1979-09-20 1981-03-27 Sagnial Henri Plateau de positionnement et d'ablocage de pieces a usiner sur machines diverses
EP0074565A2 (fr) * 1981-09-14 1983-03-23 Firma Erwin Halder Palette pour le positionnement et le serrage de pièces à usiner
US4901990A (en) * 1987-05-26 1990-02-20 Frechette Simon P Machine tool fixture with air supply system
DE9012822U1 (de) * 1990-09-06 1990-11-29 Max Lieder GmbH & Co. KG Maschinen- und Vorrichtungsbau, 1000 Berlin Modulare Rasterspannvorrichtung

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DE2232387C3 (de) * 1972-07-01 1980-01-10 Vereinigte Flugtechnische Werkefokker Gmbh, 2800 Bremen System zum Aufbau von Vorrichtungen zum Aufspannen von Werkstücken
DE4019255C1 (en) * 1990-06-15 1991-07-11 Renk Ag, 8900 Augsburg, De Machine tool work chuck - has three radially adjustable jaws with internal axial clamp joined to baseplate

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2147800A (en) * 1937-01-08 1939-02-21 Paul H Sadowski Work holder
FR2465555A1 (fr) * 1979-09-20 1981-03-27 Sagnial Henri Plateau de positionnement et d'ablocage de pieces a usiner sur machines diverses
EP0074565A2 (fr) * 1981-09-14 1983-03-23 Firma Erwin Halder Palette pour le positionnement et le serrage de pièces à usiner
US4901990A (en) * 1987-05-26 1990-02-20 Frechette Simon P Machine tool fixture with air supply system
DE9012822U1 (de) * 1990-09-06 1990-11-29 Max Lieder GmbH & Co. KG Maschinen- und Vorrichtungsbau, 1000 Berlin Modulare Rasterspannvorrichtung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009074273A2 (fr) * 2007-12-13 2009-06-18 Kramer W Dietmar Dispositif pour serrer un porte-outil sur un mandrin de serrage pouvant être fixé sur une machine d'usinage
WO2009074273A3 (fr) * 2007-12-13 2009-12-03 Kramer W Dietmar Dispositif pour serrer un porte-outil sur un mandrin de serrage pouvant être fixé sur une machine d'usinage
CN101623772B (zh) * 2009-08-13 2011-08-31 沈阳飞机工业（集团）有限公司 用于孔系组合夹具的中孔支承板
CN106271351A (zh) * 2015-05-28 2017-01-04 安顺市晶英科技研发有限责任公司 一种三角形管件用焊接夹具

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Publication number Publication date
AU2565292A (en) 1993-04-05
DE4130602A1 (de) 1993-04-29

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