EP0033531B1 - Spannbacken zum winkelgerechten Spannen von Werkstücken - Google Patents

Spannbacken zum winkelgerechten Spannen von Werkstücken Download PDF

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Publication number
EP0033531B1
EP0033531B1 EP81100700A EP81100700A EP0033531B1 EP 0033531 B1 EP0033531 B1 EP 0033531B1 EP 81100700 A EP81100700 A EP 81100700A EP 81100700 A EP81100700 A EP 81100700A EP 0033531 B1 EP0033531 B1 EP 0033531B1
Authority
EP
European Patent Office
Prior art keywords
clamping
grooves
clamping jaws
jaws
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
Application number
EP81100700A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0033531A1 (de
Inventor
Günter Holl
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT81100700T priority Critical patent/ATE8473T1/de
Publication of EP0033531A1 publication Critical patent/EP0033531A1/de
Application granted granted Critical
Publication of EP0033531B1 publication Critical patent/EP0033531B1/de
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
    • B25B1/24—Details, e.g. jaws of special shape, slideways
    • B25B1/2405—Construction of the jaws
    • B25B1/241—Construction of the jaws characterised by surface features or material
    • 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
    • B25B1/2452—Construction of the jaws with supplementary jaws

Definitions

  • the invention relates to a pair of jaws for angular clamping of workpieces, possibly of different cross-sections, in a clamping device receiving the clamping jaws, the clamping jaws having clamping surfaces in which at least one pair of opposing grooves is arranged.
  • a similar pair of jaws is described in CH-A-285 878, where prismatic grooves are also used, which are made of a non-metallic, resilient material, preferably rubber.
  • the prismatic grooves also do not allow the angular clamping of workpieces with different cross sections and this disadvantage is exacerbated by the choice of material provided there, namely rubber or the like, because the workpieces cannot be held precisely in rubber.
  • DE-C-952610 describes a clamping device with a pair of clamping jaws, of which one clamping jaw has a flat clamping surface, while the opposite clamping jaw consists of two blocks, also with flat clamping surfaces, the distance between which can be adjusted via a gear.
  • the invention avoids these disadvantages. It is based on the object of designing a pair of clamping jaws of the type mentioned at the outset in such a way that workpieces of different cross-section can also be clamped at the correct angle on the clamping surfaces of the pair of clamping jaws.
  • the invention is characterized in that the groove cross-section is shaped so that the side flanks of the groove pass over convex curves, which start from the bottom of the groove, into the clamping surfaces, the side surfaces of the grooves thus designed serving as clamping surfaces, so that angular clamping of the workpiece, the workpiece can adjust in the groove.
  • the clamping surfaces are preferably made of metal, that is, a dimensionally stable material.
  • the specified features ensure that workpieces with different cross sections can also be clamped at an angle, which is achieved via the side surfaces of the grooves designed in the specified manner.
  • the rounding has the shape of a circular section which merges tangentially into the clamping surface.
  • this rounding can be formed by two hardened bolts inserted into the jaws, each jaw having two such bolts and a total of four bolts being present in the two jaws.
  • the convex curves are made of one piece of material with the clamping jaws, that is to say are machined out of the clamping jaws.
  • a plurality of grooves can also be spaced apart in the clamping surface.
  • the longitudinal extent of the grooves can be either in the vertical plane (vertical prism) or in the horizontal plane (horizontal prism).
  • adjacent grooves have differently shaped side surfaces.
  • the radius of the side surfaces does not always have to be uniform, but can be adapted to the respective application. It can be provided here that the bolts mentioned above are interchangeable and can be exchanged for bolts with a different outside diameter or profile.
  • convex curves which emanate from the base of the groove are themselves designed as clamping surfaces and at least partially take over the clamping of the workpiece. It is possible, for example, to also clamp workpieces with a triangular cross-section, the base surface of such a triangular workpiece resting on the straight clamping surfaces of one clamping jaw and the tip of the triangle engaging in the convex curves of the side surface of the opposite clamping jaw, which are designed as clamping surfaces.
  • additional jaws can be placed on the workpiece with the clamping surfaces adapted to the profile shape of the workpiece and that the additional jaws have rounded guiding parts opposite the clamping surfaces, which lead into the associated convex side surfaces intervene in the jaws.
  • the profile shape of the clamping surfaces of the additional jaws can be adapted to the profile shape of the workpiece.
  • the clamping surfaces of the additional jaws can also have the shape provided according to the invention for the clamping jaws described above.
  • a first embodiment provides for the use of the clamping jaws described in a vice.
  • Another embodiment provides for the clamping jaws to be held in a chuck of a lathe, milling or planing bench. Both linear machining and rotating machining with the jaws can be carried out.
  • a pair of jaws with two mutually spacing jaws 1, 2 is shown, wherein in each jaw 1, 2 each have a mirror image arranged with respect to the central longitudinal axis with a groove base 3 is arranged.
  • side surfaces 5, 5 ' are formed as convex curves which merge tangentially into clamping surfaces 4, 4' arranged parallel to one another.
  • FIG. 1 shows a round cross section 6, a square cross section 7 and a rectangular cross section 8.
  • the side surfaces 5, 5 ' can also be formed by the outer circumference of hardened bolts 9 correspondingly held in the clamping jaws 1, 2, as shown in FIG. 1.
  • hardened pins can also be used, which are also used for anchoring in the material and which form such circular sections.
  • a plurality of grooves can be arranged next to one another at a distance in each clamping jaw 1, 2.
  • workpieces of various diameters can be clamped, in particular if adjacent grooves have differently curved side surfaces 5, 5 '. So here you have the opportunity to deal with a wide variety of workpieces to be exciting by using a large number of recesses. Due to the parallel clamping surfaces 4, 4 ', it is possible to clamp workpieces at an angle, as in a conventional vice.
  • the longitudinal extent of the groove base 3 lies in the horizontal plane.
  • FIG. 2 shows that the clamping jaws 1, 2 are clamped in jaws 10, 11 of a vise.
  • the side surfaces 5, 5 'having the convex curves are used here as clamping surfaces for a tip 13 of various workpieces having a triangular cross section 12, 12a, 12b.
  • An opposite base surface 14 of these triangular cross sections 12, 12a, 12b bears against the just-formed clamping surface of the clamping jaw 2.
  • the angular clamping of a workpiece with a conical cross section 20 is shown in the exemplary embodiment according to FIG. 3.
  • the clamping jaws 1, 2 are in turn clamped in the jaws 10, 11 of a vice, clamping surfaces 21, 22 of additional jaws 16, 17 abutting on the outer circumference of a workpiece 20 with a conical cross section.
  • the additional jaws 16, 17 are shown in their rest position (not clamped state), while in the broken line the additional jaws 16 ', 17' are shown in the clamping position.
  • the clamping jaws 1, 2 and the additional jaws 16, 17 and the workpiece 20 lie on a horizontal guide 15 of the vice taking over the mounting of the jaws 10, 11 and are guided longitudinally there in the horizontal plane.
  • the clamping surfaces 21, 22 can be adapted to the outer surface of the workpiece 20.
  • clamping surfaces 21, 22 it is also possible to form these clamping surfaces with grooves running parallel to the workpiece 20 in the longitudinal axis, with the nu starting from the rounded side surfaces of convex curvature.
  • the clamping surfaces 21, 22 then have the same profile shape, as is not shown in FIG. 3, as the clamping jaws 1, 2 in FIGS. 1 and 2.
  • Guide parts 18, 19 are arranged on the sides of the additional jaws 16, 17 opposite the clamping surfaces 21, 22 and engage with rounded surfaces in the side surfaces 5, 5 'of the clamping jaws 1, 2.
  • the additional jaws 16, 17 are thus pivotally received in the side surfaces 5, 5 'of the clamping jaws 1, 2 in the direction of the longitudinal axis of the workpiece to be clamped.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Forklifts And Lifting Vehicles (AREA)
EP81100700A 1980-02-02 1981-01-31 Spannbacken zum winkelgerechten Spannen von Werkstücken Expired EP0033531B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81100700T ATE8473T1 (de) 1980-02-02 1981-01-31 Spannbacken zum winkelgerechten spannen von werkstuecken.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3003801 1980-02-02
DE19803003801 DE3003801A1 (de) 1980-02-02 1980-02-02 Spannbacken zum winkelgerechten spannen von werkstuecken

Publications (2)

Publication Number Publication Date
EP0033531A1 EP0033531A1 (de) 1981-08-12
EP0033531B1 true EP0033531B1 (de) 1984-07-18

Family

ID=6093565

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81100700A Expired EP0033531B1 (de) 1980-02-02 1981-01-31 Spannbacken zum winkelgerechten Spannen von Werkstücken

Country Status (4)

Country Link
EP (1) EP0033531B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) ATE8473T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH650438A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (2) DE3003801A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3335728A1 (de) * 1983-10-01 1985-04-11 Günter 7184 Kirchberg Göller Handbetaetigungszange
DE3831375A1 (de) * 1988-09-15 1990-03-22 Bessey & Sohn Spanneinrichtung
SE531570C2 (sv) * 2007-03-11 2009-05-26 Benyamin Grolman Tillsats till hållande organ

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1994217A (en) * 1932-08-22 1935-03-12 Guillaix Marcel Bench vise and the like
DE808455C (de) * 1949-12-15 1951-07-16 Elfried Mengel Fa Auswechselbare Backeneinsaetze bei Schraubstoecken
CH285878A (de) * 1951-01-13 1952-09-30 Zumstein Jean Einlage-Schraubstockbacke.
DE952610C (de) * 1952-06-06 1956-11-15 Paul Sommer Dreipunkt-Einspannvorrichtung fuer Werkstuecke mit runden oder winklig zueinander verlaufenden Begrenzungsflaechen
FR1496013A (fr) * 1966-10-07 1967-09-22 Worthington & Packer Inv S Ltd étau et mors auxiliaire utilisable en combinaison avec lui
DE1502561B1 (de) * 1963-10-17 1970-01-15 Rueger Guenter Vorrichtung zum Spannen von zu beschleifenden rohrfoermigen Werkstuecken aus Glas u.dgl.
DE2407535B2 (de) * 1974-02-16 1975-12-11 Richard 7123 Sachsenheim Goltz Spannvorrichtung für rechteckförmige Werkstücke

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE702879C (de) * 1937-06-24 1941-02-24 Paul Frank Einspannvorrichtung
DE811215C (de) * 1949-09-14 1951-08-16 Broederna Ullstroems Motor A B Schraubstock
DE932240C (de) * 1951-04-16 1955-08-25 Carl Olafsen-Gran Schraubstock mit auswechselbaren Hilfsbacken
US2713802A (en) * 1953-02-18 1955-07-26 Mittleman Myron Budd Quick-acting vise
DE1191308B (de) * 1958-05-21 1965-04-15 Erik Valdemar Blomme Schraubstock
FR1479450A (fr) * 1966-03-22 1967-05-05 Mors pour étaux parallèles
DE2460833C2 (de) * 1974-12-21 1977-02-10 Goltz, Richard, 7123 Sachsenheim Spannvorrichtung fuer rechteckfoermige werkstuecke
US4134578A (en) * 1976-09-20 1979-01-16 Stanley James R Clamp

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1994217A (en) * 1932-08-22 1935-03-12 Guillaix Marcel Bench vise and the like
DE808455C (de) * 1949-12-15 1951-07-16 Elfried Mengel Fa Auswechselbare Backeneinsaetze bei Schraubstoecken
CH285878A (de) * 1951-01-13 1952-09-30 Zumstein Jean Einlage-Schraubstockbacke.
DE952610C (de) * 1952-06-06 1956-11-15 Paul Sommer Dreipunkt-Einspannvorrichtung fuer Werkstuecke mit runden oder winklig zueinander verlaufenden Begrenzungsflaechen
DE1502561B1 (de) * 1963-10-17 1970-01-15 Rueger Guenter Vorrichtung zum Spannen von zu beschleifenden rohrfoermigen Werkstuecken aus Glas u.dgl.
FR1496013A (fr) * 1966-10-07 1967-09-22 Worthington & Packer Inv S Ltd étau et mors auxiliaire utilisable en combinaison avec lui
DE2407535B2 (de) * 1974-02-16 1975-12-11 Richard 7123 Sachsenheim Goltz Spannvorrichtung für rechteckförmige Werkstücke

Also Published As

Publication number Publication date
DE3164795D1 (en) 1984-08-23
CH650438A5 (de) 1985-07-31
DE3003801A1 (de) 1981-08-13
ATE8473T1 (de) 1984-08-15
DE3003801C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1989-01-19
EP0033531A1 (de) 1981-08-12

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