DE110453C

DE110453C -

Info

Publication number: DE110453C
Application number: DENDAT110453D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Gegenstand der vorliegenden Erfindung ist ein Ueberbacken für Parallel- und gewöhnliche Schraubstöcke, der durch seine eigenartige Befestigung am Schraubstock alle jene Mangel umgeht, die den bisherigen Ueberbacken anhaften. Hierzu gehört vor allem das so sehr unangenehme Ausweichen beim Einspannen von Werkstücken und das ebenso unangenehme Anhaften der Backen beim Losspannen des Arbeitsstückes. Aufserdem ist z, B. bei den aus Blech gebogenen Ueberbacken die Oberkante nie scharf und durch das öftere Nachbiegen u. s. w. werden sie schnell unbrauchbar und kosten daher viel Material.The subject of the present invention is a scallop for parallel and ordinary Vice, which by its peculiar attachment to the vice, all those lack bypasses that adhere to the previous scallops. Above all, this is so much a part of this uncomfortable evasion when clamping workpieces and the equally uncomfortable The jaws sticking when the workpiece is loosened. In addition, for example, the The upper edge bent from sheet metal is never sharp and because of the frequent re-bending and so on, they quickly become unusable and therefore cost a lot of material.

Auf beiliegender Zeichnung sind einige Ausführungsformen der Erfindung dargestellt, und zwar zeigt:Some embodiments of the invention are shown in the accompanying drawings, and although shows:

Fig. ι eine Vorderansicht eines Ueberbackens ohne Einsatzhalter, im Schraubstock eingesetzt, Fig. Ι a front view of a jaw without insert holder, inserted in a vice,

Fig. ι a denselben von oben,
Fig. ib denselben in Seitenansicht,
Fig. 2 eine Vorderansicht eines Ueberbackens mit Holzeinsatz,Fig. Ι a same from above,
Fig. Ib the same in side view,
Fig. 2 is a front view of a baking with a wooden insert,

Fig. 2a denselben von oben,
Fig. 2 b denselben in Seitenansicht,
Fig. 3 eine Seitenansicht eines Schraubstockobertheiles mit eingesetzten Ueberbacken und schrägen Einsätzen, als Reifkloben dienend,2a shows the same from above,
Fig. 2 b the same in side view,
3 shows a side view of a vise upper part with inserted jaws and inclined inserts, serving as hoop clamps,

Fig. 4 eine Vorderansicht eines Ueberbackens mit seitlicher Ausladung und mit Einsatzhalter, Fig. 4a denselben von oben,
Fig. 4 b denselben in Seitenansicht,
Fig. 5 eine Vorderansicht eines Einsatzes mit Ausladung und Einsatzhalter,4 shows a front view of a scallop with a lateral projection and with an insert holder, FIG. 4a the same from above,
Fig. 4 b the same in side view,
Fig. 5 is a front view of an insert with projection and insert holder,

Fig. 5 a eine Ansicht desselben von oben,Fig. 5 a is a view of the same from above,

Fig. 5 b eine Ansicht desselben von der Seite,Fig. 5b is a view of the same from the side,

Fig. 6 eine Seitenansicht eines parallel spannenden Ueberbackens für gewöhnliche Schraubstöcke, 6 shows a side view of a parallel clamping jaw for ordinary vices,

Fig. 6a einen horizontalen Mittelschnitt desselben. 6a shows a horizontal center section of the same.

Der Blechstreifen α (Fig. 1, ia und 1 b) ist an seinen Enden zweimal rechtwinklig umgebogen und bildet dadurch die beiden langen Seitenschenkel b und die an den Enden derselben sitzenden kurzen Schenkel c. An der Oberkante hat der Streifen α noch die Umbiegung d. Um diesen Ueberbacken nun an einem Schraubstockbacken befestigen zu können,, sind in den Seiten des Schraubstockbackens die senkrechten Nuthen e eingearbeitet. Man hat nun beim Gebrauch den Ueberbacken einfach so über den Schraubstockbacken zu stülpen, dafs die Seitenschenkel b des Ueberbackens an den Seiten des Schraubstockbackens anliegen, die Schenkel c in die Nuthen e sich einschieben und die obere Umbiegung d sich auf die Oberkante des Schraubstockbackens auflegt. Der Ueberbacken α ist in dieser Lage vollständig gesichert gegen irgend welches unbeabsichtigtes Herausspringen oder Herabfallen.The sheet metal strip α (Fig. 1, ia and 1 b) is bent twice at right angles at its ends and thereby forms the two long side legs b and the short legs c seated at the ends of the same. At the upper edge of the strip α still has the bend d. In order to be able to fasten this upper jaw to a vice jaw, the vertical grooves e are incorporated in the sides of the vice jaw. One has to put the upper jaw over the vice jaws so that the side limbs b of the upper jaw lie against the sides of the vice jaw, the limbs c slide into the grooves e and the upper bend d rests on the upper edge of the vice jaw. The upper jaw α is completely secured in this position against any unintentional jumping out or falling.

An dieser Grundform .lassen sich nun entsprechend den verschiedenen Gebrauchszwecken mehrfach Modificationen anbringen. Zunächst sind in Fig. 2, 2 a und 2 b die Vorrichtungen dargestellt, welche es ermöglichen, an diesem Ueberbacken Futterklötze oder Einsatzbacken h aus Holz oder irgend einem anderen Material anzubringen. Zu diesem Zwecke sind an der Stirnfläche des Ueberbackens α die nach innen schräg gerichteten Gleitschienen f angeordnet,Multiple modifications can now be made to this basic shape in accordance with the various purposes of use. First, in Fig. 2, 2 a and 2 b, the devices are shown, which make it possible to attach chucks or insert jaws h made of wood or any other material to this upper jaw. For this purpose, the inwardly inclined slide rails f are arranged on the end face of the upper jaw α,

Claims

over which the insert h slides with the grooves i incorporated in the same. In order to prevent the insert piece from sliding out downwards, the lower edge of the upper jaw α is provided with a bend g on which the insert piece h rests. 3 shows a combination of these upper jaws with obliquely cut inserts k k, with one of the upper jaws /, rotated by 180 °, being pushed with its legs c from below into the grooves i of the one vice jaw m. In this way, the whole thing then serves as an excellent parallel hoop block, where no hinges get in the way. An automatic lifting of the upper jaws as a result of the pressure acting upward and downward due to the inclined surfaces is completely excluded due to the alternating arrangement of the upper jaws, as mentioned above. Another embodiment is shown in FIGS. 4, 4a and 4b. The same essentially corresponds to the basic shape given in Fig. 1, ia and ib, only the upper jaw α in this case has a lateral extension n, which protrudes laterally over the vice jaws and serves to clamp workpieces that are longer than the Vice jaws is wide. Of course, this embodiment can be carried out with or without the slide rails / for attaching an insert. In Fig. 5, 5a and 5b, this laterally elongated upper jaw is equipped so that it can be attached directly to the basic shape in Fig. 1, ia and ib. For this purpose, the rail ρ has the grooves i with which it is pushed over the guide rails / of the jaw α. The socket £ is arranged on its front side, which can accommodate an insert piece with its slide rails / in the manner already described. In order to reinforce the laterally protruding part η as far as possible according to FIGS. 4 and 5, a basic bead 0 is arranged and the upper bend d is considerably widened. Finally, in Fig. 6 and 6a, an embodiment is given by which a complete parallel clamping is secured with ordinary vices, which, as is known, grip the workpiece in a wedge-shaped manner. For this purpose, a hollow-roller-shaped version r with a dovetail guide on the side is attached to the front side of the basic shape a, in which half the solid roller s can rotate, which carries the version q with the slide rails / for the desired insert on its front side. The version r can of course also be provided with corresponding grooves i so that it can be detachably attached to the slide rails / the basic shape α. Patent claims:

1. Outer jaws for vices, characterized by a metal strip (a) bent twice at right angles at both ends, one pair of legs (b) of which rest against the sides of the vice jaws, while the other pair (c) is in special grooves (e) of the vice jaws , whereby a bend (d ) provided on the upper edge of the metal strip (a) rests on the upper edge of the vice jaw and prevents the upper jaw (a) from sliding down.

2. An embodiment of the upper jaw according to claim.!, Characterized in that two vertical guide rails (f) inclined obliquely towards the center are arranged on the end wall of the upper jaw (a)

• are over which an insert. ^ Slides with its grooves (i) , while a bend (g) provided on the lower edge prevents the insert from sliding down. .

3. An embodiment of the scalloping according to claim 1 and 2, characterized by lateral extension (s) provided with lower stiffening bends (o) and substantially widened upper bend (d ) for the purpose of clamping workpieces of any length in a vertical position.

4. An embodiment of the upper jaw according to claim 1, characterized in that on the front side of the same a socket (r) is detachably or non-detachably arranged, which contains a half hollow roller (s) rotatably mounted in a cavity with lateral The usual socket (q) for inserts is attached to the front, for the purpose of securing a perfectly parallel clamping of the workpiece with ordinary vices.

1 sheet of drawings.