EP2020276A1 - Schraubstock - Google Patents

Schraubstock Download PDF

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Publication number
EP2020276A1
EP2020276A1 EP08380229A EP08380229A EP2020276A1 EP 2020276 A1 EP2020276 A1 EP 2020276A1 EP 08380229 A EP08380229 A EP 08380229A EP 08380229 A EP08380229 A EP 08380229A EP 2020276 A1 EP2020276 A1 EP 2020276A1
Authority
EP
European Patent Office
Prior art keywords
carriages
base
height
spindle
jaws
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Withdrawn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
EP08380229A
Other languages
English (en)
French (fr)
Inventor
Francisco Javier Berridi De Quevedo
Javier Moises Fernandez Leal
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.)
Fresmak SA
Original Assignee
Fresmak SA
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 Fresmak SA filed Critical Fresmak SA
Publication of EP2020276A1 publication Critical patent/EP2020276A1/de
Withdrawn legal-status Critical Current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
    • B25B1/00—Vices
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/10—Arrangements for positively actuating jaws using screws
    • B25B1/103—Arrangements for positively actuating jaws using screws with one screw perpendicular to the jaw faces, e.g. a differential or telescopic screw
    • 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
    • B25B1/00—Vices
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/10—Arrangements for positively actuating jaws using screws

Definitions

  • the object of the invention is a vice applicable in the machine tools sector.
  • machine tools sector there is a type of machine that is colloquially called "five-axis machines”. These machines are able to move independently on five numerically controlled axes and can also interpolate the movements of the said axes, so that they can work with several axes at a time following the needs of the mechanics of the part.
  • machines of this type belong to the group of machining centers.
  • the machine tools comprise vices which are composed of a base body with one or more horizontal rails on which slide two carriages, and have means (actuating pin) for moving the carriages.
  • the vise, object of the invention is a self-centering vise which always places the workpiece in the center of the work table of the machine.
  • the vice object of the invention, was specially created to work on machines with five controlled axes. It can logically also work on any machining center for small parts, or to fix cylindrical parts.
  • the vice object of the invention, is a vise new and different from the vises known and built so far, since it is not high pressure, it is a vice machining pin right left
  • the novelty of this vice is mainly based on the position of the spindle with respect to the clamping jaws and the lower base body. This vise approaches the center of the spindle as close as possible to the clamping point of the workpiece.
  • the pin is placed to move the carriages on the sliding surface: out of the base body attached to the two carriages and on an external support so that its axis is the most close to the workpiece clamping point.
  • the vise object of the invention is one of those which have a base body (1) with one or more horizontal slides (g), where movable carriages (4) move: with means for approaching or removing them ; said carriages (4) are supported by clamping jaws (3) between which are fixed the workpieces.
  • said jaws (3) are placed at a sufficiently high height (h 3 ) to facilitate the movements of the own turn of the table;
  • the means for moving the mobile carriages (4) in approximation or removal are constituted by one or more threaded pins (2); said pins are placed on their axis (e) at a height (h 2 ) higher than the maximum height (h 1 ) which has the sliding surface of the guide (s) (g) of the body (1) on which the carriages slide mobile (4) which for this purpose are provided with guides (7) conjugated.
  • each pin (2) existing- falls on the carriages (4) and is mounted on a support (5) placed between them, so that the one or more pins (2) are held in position and can turn.
  • the novelty of the vice, object of the invention is based mainly on the arrangement of the spindle (5) which passes through the clamping carriages (4), which allows the force (f 1 ) clamping clamp-vise is make as close as possible to the point of contact with the workpiece.
  • the vice is composed of a base body (1) of nodular cast iron.
  • the body (1) is one element of the main elements that serves as a support for the whole.
  • the body (1) has two flanges on the upper part which serve as guide (g) to the carriages (4) which carry the jaws (3).
  • On the bottom part there is a step which is used to fix the piece to the plate of the machine by means of flanges.
  • the body (1) is massive.
  • Two mobile carriages (4) slide on the body (1); they are guided on the upper edges of the body (1) by means of two slides (7) provided for this purpose. Which allows to obtain a good alignment as well lateral as vertical.
  • the carriages (4) are traversed by the right left threaded spindle (2).
  • the spindle (2) for self-centering the jaw, is fixed on its middle part by a support (5) which held to the base body (1) managed to fix the spindle (5) and allows its rotation.
  • On the mobile carriages (4) there are two jaws (3) which are placed to maintain the piece according to its configuration.
  • the jaws (3) have two stepped jaws which allow the parts to be clamped in one direction or in place, since the mechanical spindle (5) is able to exert its force as much towards the outside as the inside.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Prostheses (AREA)
  • Jigs For Machine Tools (AREA)
EP08380229A 2007-07-25 2008-07-24 Schraubstock Withdrawn EP2020276A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200702070A ES2336399B8 (es) 2007-07-25 2007-07-25 Mordaza.

Publications (1)

Publication Number Publication Date
EP2020276A1 true EP2020276A1 (de) 2009-02-04

Family

ID=39884435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08380229A Withdrawn EP2020276A1 (de) 2007-07-25 2008-07-24 Schraubstock

Country Status (2)

Country Link
EP (1) EP2020276A1 (de)
ES (1) ES2336399B8 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2977145B1 (de) 2014-07-23 2017-05-10 Gressel AG Zentrisch-spannvorrichtung

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1473946A (en) * 1922-11-07 1923-11-13 Starrett L S Co Combination hand vise
US2552094A (en) * 1947-12-18 1951-05-08 Wesley M Hamon Three jaw vise
GB672958A (en) * 1949-08-23 1952-05-28 James Leonard Stafford Improvements in or relating to vices and similar work holders
DE948680C (de) * 1951-05-26 1956-09-06 Hans Kohn Vorrichtung nach Art eines Schraubstockes zum Spannen von Werkstuecken
GB775111A (en) * 1954-06-23 1957-05-22 Douglas Fraser & Sons Ltd Self-centering mechanism for locating components of nominally circular cross-section
EP0742081A2 (de) * 1995-05-12 1996-11-13 GERARDI S.p.A. Universal-Präzisionsschraubstock für eine Werkzeugmaschine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1473946A (en) * 1922-11-07 1923-11-13 Starrett L S Co Combination hand vise
US2552094A (en) * 1947-12-18 1951-05-08 Wesley M Hamon Three jaw vise
GB672958A (en) * 1949-08-23 1952-05-28 James Leonard Stafford Improvements in or relating to vices and similar work holders
DE948680C (de) * 1951-05-26 1956-09-06 Hans Kohn Vorrichtung nach Art eines Schraubstockes zum Spannen von Werkstuecken
GB775111A (en) * 1954-06-23 1957-05-22 Douglas Fraser & Sons Ltd Self-centering mechanism for locating components of nominally circular cross-section
EP0742081A2 (de) * 1995-05-12 1996-11-13 GERARDI S.p.A. Universal-Präzisionsschraubstock für eine Werkzeugmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2977145B1 (de) 2014-07-23 2017-05-10 Gressel AG Zentrisch-spannvorrichtung

Also Published As

Publication number Publication date
ES2336399B8 (es) 2011-08-02
ES2336399A1 (es) 2010-04-12
ES2336399B2 (es) 2011-02-03

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