EP0202407B1 - Etau parallèle ouvrant vers l'avant - Google Patents

Etau parallèle ouvrant vers l'avant Download PDF

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Publication number
EP0202407B1
EP0202407B1 EP86103246A EP86103246A EP0202407B1 EP 0202407 B1 EP0202407 B1 EP 0202407B1 EP 86103246 A EP86103246 A EP 86103246A EP 86103246 A EP86103246 A EP 86103246A EP 0202407 B1 EP0202407 B1 EP 0202407B1
Authority
EP
European Patent Office
Prior art keywords
housing
jaw
guide
vice according
guide tube
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
Application number
EP86103246A
Other languages
German (de)
English (en)
Other versions
EP0202407A1 (fr
Inventor
Adolf Würthele
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.)
Gressel AG
Original Assignee
Gressel AG
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 Gressel AG filed Critical Gressel AG
Priority to AT86103246T priority Critical patent/ATE46470T1/de
Publication of EP0202407A1 publication Critical patent/EP0202407A1/fr
Application granted granted Critical
Publication of EP0202407B1 publication Critical patent/EP0202407B1/fr
Expired 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
    • B25B1/22—Arrangements for turning or tilting vices
    • 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
    • B25B1/24—Details, e.g. jaws of special shape, slideways
    • B25B1/2405—Construction of the jaws
    • 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
    • B25B1/24—Details, e.g. jaws of special shape, slideways
    • B25B1/2489—Slideways

Definitions

  • the invention relates to a forward opening parallel vice according to the preamble of claim 1.
  • the guide tube of the movable clamping jaw has a circular cross section and is guided in a cylindrical guide of the housing. Accordingly, the movable clamping jaw can be pivoted about the common axis of the guide tube and the cylindrical inner guide.
  • the swiveling clamping jaw In order to keep the swiveling clamping jaw in the desired swiveling position, it is provided at its front end facing the user of the vice with several axially parallel recesses arranged concentrically to the guide tube axis. A wedge engages in each of these recesses and is connected to the housing via a leaf spring.
  • the leaf spring By means of a handle arranged on the leaf spring, the leaf spring can be bent so far that the wedge emerges from the recess, so that pivoting of the pivotable clamping jaw is then possible. In the desired swivel position, the wedge then snaps into another recess after releasing the handle.
  • This absolutely necessary locking device requires a not inconsiderable manufacturing effort. It must be extremely stable, otherwise the swiveling jaw could deflect under one-sided load. Since the pivotable jaw moves away from the housing when the vice is opened, the wedge of the locking device must be made relatively long in the axial direction so that it still engages in the recess even with a large span. The further the vise is opened, the more unstable the mounting of the swiveling clamping jaw becomes by the locking device.
  • Forward-opening parallel vices with a square guide according to DIN 5115 in various designs are also known.
  • the housing generally has an inner guide with a rectangular cross section.
  • the movable clamping jaw is arranged on a guide part which is also rectangular in cross section and which engages in the inner guide.
  • the maximum span of these known parallel vices is limited by the length of the guide part and always shorter than this, since when the vise is fully open, the guide part must still engage in the inner guide of the housing with a sufficient length.
  • the invention has for its object to provide a forward opening parallel vice with at least one pivoting jaw of the type mentioned in the preamble of claim 1, which is simple to manufacture and has a high rigidity in operation.
  • the new parallel vice can be used in normal operation like a conventional, forward opening parallel vice.
  • the guide tube can be completely pulled out of the inner guide of the housing, rotated 90 ° around the screw spindle axis and reinserted into the inner guide of the housing. Thanks to the square cross-section of the inner guide and the guide tube, the pivotable clamping jaw is then guided exactly in the housing in this pivoting position, without the need for a separate locking device. The movable clamping jaw is then no longer located opposite the fixed clamping jaw, but on one side of the housing.
  • the workpiece to be clamped can be placed next to the housing on the workbench and brought to rest on a counter jaw or abutment that is attached or can be attached to the workbench.
  • the workpiece can then be clamped between the latter and the abutment or the counter jaw by means of the movable clamping jaw projecting over the side surface of the housing.
  • the guide tube expediently has a cross section which is closed on all sides and only open to the rear.
  • the guide tube has optimum bending and torsional rigidity in every direction.
  • the screw spindle is completely surrounded by the guide tube or the housing in its operating position and is thus protected against contamination and damage.
  • the housing 1 carries the stationary clamping jaw 2 and can be supported with its base 1a on a workbench 3 or another suitable base, for example the support plate of a vice-lift-lift (positioning device).
  • the housing 1 can have laterally projecting tabs 4, through which screws can be passed in a known manner.
  • the attachment can, however, also advantageously take place in that the downwardly open housing 1 has in its lower part on its two longitudinal sides an inwardly projecting strip 5 which extends parallel to the screw spindle axis A. These two strips 5 form a downwardly open groove with an essentially T-shaped cross section. A holding plate 6, 6 'can engage in this groove.
  • the holding plate 6 can have two bores through which screws 7 are passed, which extend through the workbench 3. By tightening the nuts 8, the housing 1 can be securely connected to the workbench 3. Conversely, by loosening the nuts without having to completely unscrew them from the screws 7, the tension of the holding plate 6 can be released and then the housing 1 can be pulled forward from the workbench. This is of advantage, for example, when the vice is used on construction sites. It can then be removed from the workbench at the end of each work and stored in a safe place.
  • the holding plate 6 ' can be detachably connected to the workbench 3 by means of the spindle 10.
  • the housing 1 has four guide tracks 11, which together form a square guide for the slide 12.
  • the guideways 11 extend parallel to the screw spindle axis A and form tangents to a circle K, the center of which is the screw spindle axis A.
  • the slide 12 has a square cross section, the guide surfaces 13 limiting this cross section.
  • the screw spindle axis A is arranged exactly in the center of this square cross section.
  • the guide surfaces provided on the four sides of the slide 12 likewise form tangents to the common circle K, the center of which is the screw spindle axis A.
  • the slider 12 carries the movable clamping jaw 14.
  • a screw-nut arrangement 15-17 is provided in the hollow slider 12.
  • the sleeve 15 is rotatable, but axially immovable in the slide 12 and rotatable by means of the knob 18. At its inner end, the sleeve 15 carries the nut 16.
  • the nut 16 surrounds the spindle 17, which is fastened with its rear end to the rear wall 1 of the housing 1.
  • the housing 1 is extended so far back that it completely encloses the slide 12 when the jaws 2, 14 are closed.
  • the housing 1 is additionally stiffened at its rear end.
  • a transverse screw 19 is provided which holds the housing 1 together in the front, lower area and thus increases its stability.
  • the cross screw 19 also serves to readjust the guideways 11.
  • the slide 12 is expediently closed on all sides except for a rear opening through which the screw spindle 17 extends. In this way, optimal stiffness of the slide 12 is achieved.
  • the housing 1 is expediently open at the bottom.
  • the slide 12 has the cross section of a square standing on the tip and accordingly the guide surfaces 13 and guide tracks 11 are also inclined at an angle ⁇ of 45 ° with respect to the base surface 1a of the housing.
  • This and the downwardly open configuration of the housing 1 make it possible to machine the guideways 11 very efficiently by means of a set mill.
  • the arrangement of the square cross-section standing on the tip is optimal in terms of strength from the most frequent load, namely the lateral clamping of a workpiece.
  • this arrangement of the cross section has the advantage that no chips remain on the inclined guide surfaces 13.
  • the slide 12 has a flattening 24 between two adjacent guide surfaces 13, which run at right angles to one another, and each includes an angle of 135 ° with the adjacent guide surfaces 13.
  • the flats 24 each run horizontally or vertically. Thanks to the flats 24, the workpiece can be placed on the slide during clamping without damaging the guides 13. You also gain clamping depth and valuable space for lateral (vertical) clamping.
  • the flats 24 and the inclined guide surfaces 13 also have the advantage that no additional supports or covers are required, which would require additional space and manufacturing costs.
  • the clamping jaws 2, 14 are expediently arranged asymmetrically to a vertical plane V running through the screw spindle axis A.
  • This measure is known per se and, with normal use of the parallel vice, has the advantage that a greater clamping depth is achieved when clamping workpieces extending vertically downwards past the slide 12. Even when clamping workpieces whose dimensions are larger than the maximum span of the parallel vise, as will be described below, special advantages due to this arrangement.
  • a loose counter jaw 20, 20 ' is provided which is provided with holding means for releasable attachment to the workbench 3 or the like.
  • This counter jaw 20 can have, for example, retaining pins 21 (FIG. 5), which can optionally be inserted into different bores 22 of a retaining rail connected to the workbench 3.
  • the vice is used like a conventional vice, i. H. the two jaws 2, 14 are arranged opposite one another. As can be seen from FIG. 3, thanks to the asymmetrical arrangement of the clamping jaws 2, 14, workpieces W can also be clamped vertically, which reach vertically downwards from the clamping jaws 2, 14 past the slide 12.
  • the slide 12 For clamping larger workpieces, the clamping cross section of which is larger than the maximum span of the vice, the slide 12 is unscrewed completely to the front by turning the sleeve 15 and can then be pulled out of the housing to the front. The slide 12 is then pivoted through 90 ° about the screw spindle axis A and pushed back into the square guide of the housing 1. This is easily possible thanks to the square cross section of the slide 12 and the corresponding arrangement of the guideways 11 of the housing. The clamping jaw 14 of the slide 12 then assumes the position shown in FIGS. 4 and 5. To clamp the larger workpiece W1, it is placed on the workbench 3 and the counter jaw 20 is fixed at the appropriate location on the holding rail 23. The workpiece W1 can then be clamped between the counter jaw 20 and the movable clamping jaw 14. The asymmetrical arrangement of the stationary jaw 2 ensures that it is not in the way in such clamping operations.
  • the parallel vice as shown in FIG. 6, is fastened on a so-called lifting lift, which not only enables the vice to be raised and lowered, but also swivels around a vertical axis, workpieces W2 can also be clamped.
  • the clamping cross section of which is greater than the depth of the workbench 3.
  • the vice is pivoted about the vertical axis of the lifting lift and brought into the position shown in FIG.
  • the movable counter jaw 20 ' is then fixed on the workbench at the appropriate point. This can be done, for example, by means of a screw clamp-type bracket 9 ', which is designed in the same way as the bracket 9 shown in FIG. 9. Instead of fixing the counter-jaw in this way, the arrangement shown in FIG should extend parallel to the longitudinal edge of the workbench 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Jigs For Machine Tools (AREA)

Claims (12)

1. Etau parallèle ouvrant vers l'avant avec au moins un mors pivotant, constitué de :
1.1. un corps (1) fixé à un établi (3) ou analogue, qui porte un mors (2) et est doté d'un guide intérieur (11) pour un tube de guidage (12) relié à demeure au mors mobile pivotant (14),
1.2. un ensemble arbre fileté-écrous (15, 16, 17), qui est coaxial par rapport au guide intérieur du mors mobile et dont une partie est montée à pivotement et de manière fixe dans le sens axial, par rapport au mors mobile (14), et l'autre partie est fixée au corps (1), caractérisé en ce que :
1.3. le guide intérieur (11) présente pour le mors mobile (14) une section quadratique avec des glissières (11), avec lesquelles coopèrent des surfaces de guidage (13) correspondantes du tube de guidage (12), les surfaces de guidage (13) et les glissières (11) formant des tangentes à un cercle commun (K) dont le centre est l'axe de l'arbre fileté (A).
1.4. le pivotement des mors l'un par rapport à l'autre dans la section quadratique du guide intérieur (11), s'obtient par démontage du tube de guidage (12) du mors mobile (14).
2. Etau selon la revendication 1, caractérisé en ce que le tube de guidage (12) présente une section fermée de toutes parts à l'exception d'une unique ouverture vers l'arrière.
3. Etau selon la revendication 1 ou 2; caractérisé en ce que le corps (1) est prolongé vers l'arrière de manière telle que, lorsque les mors (2, 14) sont fermés, il inclut complètement le tube de guidage (12), et le corps (1) présente une paroi arrière (1b) à laquelle est fixé l'arbre fileté.
4. Etau selon la revendication 1 ou 3, caractérisé en ce que le corps (1) est ouvert vers le bas.
5. Etau selon au moins l'une des revendications 1 à 4, caractérisé en ce que le tube de guidage (12) présente la section d'un carré posé sur pointe et, en conséquence, les surfaces de guidage (13) et les glissières (11) sont inclinées chacune suivant un angle (µ) de 45° par rapport à la surface de base (1 a) du corps (1).
6. Etau selon la revendication 5, caractérisé en ce que le tube de guidage (12), entre deux surfaces de guidage (13) voisines, à angle droit l'une par rapport à l'autre, présente chaque fois un aplatissement (24) qui forme un angle de 135° avec les surfaces de guidage (13) adjacentes.
7. Etau selon la revendication 1, caractérisé en ce que les mors (2, 14) sont disposés asymétrique- ment par rapport à un plan vertical (V) passant par l'axe de l'arbre fileté (A).
8. Etau selon la revendication 1, caractérisé en ce qu'il comprend un contre-mors séparé (20, 20') qui est doté de moyens de fixation (21, 9') pour le fixer de manière amovible à un établi (3) ou analogue.
9. Etau selon la revendication 8, caractérisé en ce que le contre-mors (20) présente, comme moyens de fixation, des chevilles (21) insérables au choix dans divers alésages (22) d'un rail de fixation (23) relié à demeure à l'établi ou analogue.
10. Etau selon la revendication 8, caractérisé en ce qu'un serre-joint à serrage par vis (9') est prévu comme moyen de fixation pour le contre-mors (20').
11. Etau selon la revendication 4, caractérisé en ce que, dans la partie inférieure du corps (1), il est prévu, sur ses deux côtés longitudinaux, un rebord en saillie vers l'intérieur, s'étendant parallèlement à l'axe de l'arbre fileté (A), qui sert à former une rainure ouverte vers le bas, de section essentiellement en T, et à recevoir une plaque de fixation (6, 6').
12. Etau selon la revendication 11, caractérisé en ce que la plaque de fixation (6') est une branche en U d'un étrier (9), du type serre-joint à serrage par vis, essentiellement en forme de U.
EP86103246A 1985-05-14 1986-03-11 Etau parallèle ouvrant vers l'avant Expired EP0202407B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86103246T ATE46470T1 (de) 1985-05-14 1986-03-11 Vorwaerts oeffnender parallelschraubstock.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3517298A DE3517298C1 (de) 1985-05-14 1985-05-14 Vorwaerts oeffnender Parallelschraubstock
DE3517298 1985-05-14

Publications (2)

Publication Number Publication Date
EP0202407A1 EP0202407A1 (fr) 1986-11-26
EP0202407B1 true EP0202407B1 (fr) 1989-09-20

Family

ID=6270668

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86103246A Expired EP0202407B1 (fr) 1985-05-14 1986-03-11 Etau parallèle ouvrant vers l'avant

Country Status (4)

Country Link
EP (1) EP0202407B1 (fr)
JP (1) JPS61260981A (fr)
AT (1) ATE46470T1 (fr)
DE (2) DE3517298C1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE325459C (de) * 1918-01-26 1920-09-13 Berliner Ind Maschinengesellsc Parallelschraubstock
DE1718547U (de) * 1954-06-18 1956-03-08 Paul Kloepper Parallelschraubstock mit im schraubstockkoerper um eine horizontale achse drehbaren und feststellbaren backenarmen.
DE2341194A1 (de) * 1973-08-16 1975-02-20 Guenter Rother Verstellbarer schraubstock
DE3134209A1 (de) * 1981-08-29 1983-03-17 Horst 7730 Villingen-Schwenningen Klann "schraubstock"

Also Published As

Publication number Publication date
JPS61260981A (ja) 1986-11-19
ATE46470T1 (de) 1989-10-15
DE8514223U1 (de) 1986-09-11
EP0202407A1 (fr) 1986-11-26
DE3517298C1 (de) 1986-08-14

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