DE1065799B

DE1065799B -

Info

Publication number: DE1065799B
Application number: DENDAT1065799D
Authority: DE
Publication date: 1959-09-24

Description

DEUTSCHESGERMAN

kl. 5 c 10/Ό1kl. 5 c 10 / Ό1

INTERNAT. KL. E 21 dINTERNAT. KL. E 21 d

PATENTAMTPATENT OFFICE

G 25116 VI/5cG 25116 VI / 5c

ANMELDETAG: 14. AUGUST 1958REGISTRATION DATE: AUGUST 14, 1958

BEKANNTMACHUNG DER ANMELDUNG UND AUSGABE DER AUSLE GE S CH RI FT:NOTICE THE REGISTRATION AND ISSUE OF THE INTERPRETATION:

24. SEPTEMBER 1959SEPTEMBER 24, 1959

Es ist ein mehrteiliger Grubenstempel aus zwei ineinandergeschobener! Rohren bekannt, deren Äußeres am oberen Ende kegelförmig für die Aufnahme eines geschlitzten oder mehrteiligen Keilringes aufgeweitet ist, der durch einen auf das äußere Rohr geschraubten Treibring in die kegelförmige Erweiterung des Außenstempels hineingepreßt wird. Der Keilring war bei diesem bekannten Grubenstempel mit einem Bund versehen, der in eine entsprechende Ringnut des Treibringes eingriff.It is a multi-part pit punch made of two nested! Pipes known, their exterior widened conically at the upper end to accommodate a slotted or multi-part wedge ring is that by a drive ring screwed onto the outer tube in the conical extension of the outer punch is pressed into it. The wedge ring was with this well-known pit punch with a collar provided, which engaged in a corresponding annular groove of the drive ring.

Es ist fernerhin bei Klemmringstempeln, bei denen die Stempelteile durch einen mittels einer Spannvorrichtung verengbaren Klemmring gegeneinander festklemmbar sind, bekannt, den Klemmring mit einer nach oben erweiterten konischen Innenöffnung zu versehen, in welcher ein Auflastungselement in Gestalt eines oder mehrerer Keileinlagen Aufnahme findet, welche derart unter der Wirkung von elastischen Mitteln stehen, daß sie nach einem bestimmten Einsinkweg und nach Lösen des Klemmringes durch die elastischen Mittel wieder angehoben werden.It is also with clamping ring punches, in which the punch parts by means of a clamping device narrowable clamping ring are clamped against each other, known, the clamping ring with a to provide upwardly widened conical inner opening, in which a load element in the form one or more wedge inserts takes place, which so under the action of elastic means stand that they after a certain Eininkweg and after loosening the clamping ring through the elastic means are raised again.

Demgegenüber betrifft die vorliegende Erfindung einen mehrteiligen Grubenstempel aus Stahl oder Metall mit einem rohrförmigen Innenstempel und einem diesen haltenden zusammenziehbaren Klemmring, der in einer am Außenstempel angeordneten Haltetasche liegt, und besteht im wesentlichen darin, daß elastische Mittel vorgesehen sind, die den Klemmring gegen den Boden der Haltetasche drücken. Dadurch wird der lose in die Haltetasche eingelegte Klemmring immer in seiner richtigen Lage gehalten und das Eindringen von Fremdkörpern zwischen ihm und dem ihn tragenden Boden der Haltetasche vermieden. In contrast, the present invention relates to a multi-part pit punch made of steel or Metal with a tubular inner punch and a retractable clamping ring holding it, which is located in a holding pocket arranged on the outer die, and essentially consists of that elastic means are provided which press the clamping ring against the bottom of the holding pocket. Through this the clamping ring, which is loosely inserted in the holding pocket, is always held in its correct position and the ingress of foreign bodies between it and the bottom of the holding pocket that supports it is avoided.

Werden konische Reibeinlagen zwischen dem dann innen konischen Klemmring und dem Innenstempel verwendet, die durch Einlaufen in den Klemmring unter der Einwirkung des einsinkenden Innenstempels eine Auflastung hervorrufen, dann dienen zweckmäßig die elastischen Mittel, welche den Klemmring gegen den Boden der Haltetasche drücken, auch dazu, bei entspanntem Klemmring die Reibeinlagen wieder anzuheben und gegen die Deckscheibe der Haltetasche zu drücken. Dazu stützen sich die elastischen Mittel nach oben an den Reibeinlagen und nach unten auf dem Klemmring oder auf Ansätzen desselben ab.Are conical friction inserts between the then internally conical clamping ring and the inner punch used by running into the clamping ring under the action of the sinking inner punch cause a load, then the elastic means that the clamping ring are expediently used Press against the bottom of the holding pocket, also to do this, again with the friction inserts when the clamping ring is relaxed to lift and press against the cover plate of the holding pocket. For this purpose, the elastic means are supported upwards on the friction inserts and downwards on the clamping ring or on its approaches.

Vorteilhaft ist es ferner, wenn nach einem weiteren Erfindungsvorschlag die elastischen Mittel mittelbar über einen die Reibeinlagen umgebenden Ringkörper, der mit Ansätzen in Ausnehmungen der Reibeinlagen eingreift, auf die Reibeinlagen wirken. Die Reibeinlagen werden dann durch den Ringkörper zu gleichen Hub- bzw. Senkbewegungen gezwungen.It is also advantageous if, according to a further proposal of the invention, the elastic means are indirect Via an annular body that surrounds the friction inserts and which has lugs in recesses in the friction inserts intervenes, act on the friction inserts. The friction inserts are then equalized by the ring body Lifting or lowering movements forced.

Die elastischen Mittel sind zweckmäßig ringartigThe elastic means are expediently ring-like

Mehrteiliger GrubenstempelMulti-part pit stamp

Anmelder: Karl Gerlach, Moers (Ndrh.), Homberger Str,86, und Dr.-Ing. Hans Gerlach, Homburg/Saar, Lerchenstr. 26Applicant: Karl Gerlach, Moers (Ndrh.), Homberger Str, 86, and Dr.-Ing. Hans Gerlach, Homburg / Saar, Lerchenstr. 26th

Karl Gerlach, Moers (Ndrh.), und Dr.-Ing. Hans Gerlach, Homburg/Saar, sind als Erfinder genannt wordenKarl Gerlach, Moers (Ndrh.), and Dr.-Ing. Hans Gerlach, Homburg / Saar, have been named as inventors

um Flanschansätze der Reibeinlagen angeordnet, die diese in Tieflage hängend im Klemmring halten.arranged around the flange lugs of the friction inserts, which keep them hanging in the clamping ring in the lower position.

Erfindungsgemäß wird ferner vorgeschlagen, die elastischen Mittel aus Metallringen mit zwischen diesen einvulkanisierten Gummiringen zu bilden.According to the invention it is also proposed that the elastic means of metal rings with between to form these vulcanized rubber rings.

Für die erfindungsgemäße Gestaltung, aber auch für alle anderen, die von einer Haltetasche für den Klemmring Gebrauch machen, ist es von Vorteil, die Haltetasche als Gußkörper zu fertigen, der auf den Außenstempel aufgesetzt ist. Dazu eignet sich beispielsweise Sphäroguß oder auch Leichtmetallguß. Die Haltetasche kann dann besonders wirtschaftlich hergestellt werden.For the design according to the invention, but also for all others who benefit from a holding bag for the Make use of the clamping ring, it is advantageous to manufacture the holding pocket as a cast body on the Outside stamp is attached. Spheroidal cast iron or light metal cast, for example, are suitable for this purpose. the The holding pocket can then be produced particularly economically.

In der Zeichnung ist ein Ausführungsbeispiel nach der Erfindung schematisch dargestellt.In the drawing, an embodiment according to the invention is shown schematically.

Fig. 1 zeigt einen Längsschnitt mit Stellung der Einzelteile bei entspanntem Klemmring undFig. 1 shows a longitudinal section with the position of the individual parts with the clamping ring relaxed and

Fig. 2 einen solchen mit Stellung der Einzelteile bei belastetem Stempel; 2 shows such a position with the individual parts when the punch is loaded;

Fig. 3 gibt eine Draufsicht nach dem Schnitt III-III wieder.Fig. 3 shows a plan view according to the section III-III.

Der Innenstempel ist mit 1 bezeichnet und der Außenstempel mit 2. Auf ihm ist eine Haltetasche angeordnet, die vorteilhaft aus einem Gußstück besteht, mit dem Boden 3, der auf einer Seite offenen Wandung 4 und der Deckscheibe 5. Die Haltetasche kann aber auch aus den Teilen 3, 4 und 5 zusammengeschweißt sein, wie es an sich bekannt ist.The inner punch is designated with 1 and the outer punch with 2. On it a holding pocket is arranged, which advantageously consists of a casting, with the bottom 3, the wall 4 open on one side and the cover plate 5. The holding pocket can also consist of the Parts 3, 4 and 5 be welded together, as is known per se.

Auf dem Boden 3 der Haltetasche ist der Klemmring 6 gelegt, der durch die Spannvorrichtung 7 zusammenziehbar ist und den Innenstempel 1 durch Reibung hält. The clamping ring 6 , which can be drawn together by the clamping device 7 and holds the inner punch 1 by friction, is placed on the bottom 3 of the holding pocket.

Am Klemmring 6 stützen sich elastische Mittel ab, die aus Metallringen 8 und zwischen diese einvulka-On the clamping ring 6 elastic means are supported, which are made of metal rings 8 and vulcanized between them.

909 629/47909 629/47

Claims

nized rubber rings 9 exist. Instead, however, springs or the like, suitable elastic means can also be used. In a simplified construction, which was not specifically shown, these are supported upward directly on the cover disk 5 and always hold the clamping ring 6 in its correct position on the floor 3. If, in accordance with the exemplary embodiment shown, conical friction inserts indicated by 10 are used, so get these flange lugs 11 above the clamping ring 6. These flange lugs 11 have recesses 12 for lugs 13 of an annular body 14 against which the elastic means 8, 9 press from below. In the position according to FIG. 1 with the clamping ring 6 relaxed, not only is the clamping ring 6 pressed against the bottom 3, but the friction inserts 10 are also raised, in the same way, since they reach into their recesses 12 with as little play as possible Approaches 13 of the ring body 14 are coupled to one another. The dimensions are such that the elastic means 8, 9 are still under a certain bias when the ring body 14 is raised under their action together with the friction inserts 10 and rests against the cover plate 5, with the flange lugs 11 and 11 between the lower edge the upper edge of the clamping ring 6 has formed a gap χ which corresponds to the possible run-in path of the conical friction inserts 6 in the clamping ring 6. In addition, the distance y of the friction inserts 10 from the floor 3 is somewhat greater than x. The position of the individual parts according to FIG. 1 corresponds to the state after the robbery or when setting or immediately after setting. If the clamping ring 6 is now tensioned and the mountains sit down, the inner punch 1 tries to sink in. Since, as is known, the coefficient of friction between it and the friction inserts 10 was selected to be greater than the coefficient of friction between the friction inserts 10 and the clamping ring 6, the inner punch 1 moves the friction inserts 10 into the clamping ring 6 by the distance x, which is a few millimeters pushed, whereby due to the conical design a considerable load, i. H. The clamping ring tension is increased. In the lower position according to FIG. 2, the friction inserts 10 are held hanging in the clamping ring 6 by their flange attachments 11. The ring body 14 with its lugs 13 also ensures a similar running-in movement of the friction inserts 10 into the clamping ring 6. As soon as the clamping ring 6 is loosened by turning back the clamping device 7 to steal, all the individual parts return to the new one under the action of the elastic means Set the required starting position according to FIG. 1. The construction according to the invention is simple and reliable. The height of the holding pocket is relatively low in spite of accommodating all the parts required for the loading in it. In the cast version, this is not only easy and particularly economical to manufacture, but also not so hard that it can damage the inner die surface. By assigning the individual parts in the holding pocket with the all-round arrangement of the rubber rings 9 ίο, an extensive seal against the ingress of contaminants is also achieved. In particular, no foreign bodies can settle between the clamping ring and its support, since it always remains pressed against them. Patent claims:

1. Multi-part pit punch made of steel or metal with a tubular inner punch and

ao a retractable clamping ring holding it, which is located in a holding pocket attached to the outer die end, characterized in that elastic means are provided which press the clamping ring against the bottom of the holding pocket.

2. Pit punch according to claim 1, characterized in that when arranged conical by Entering the internally conical clamping ring as a load acting friction inserts between the Clamping ring and the inner die which press the clamping ring against the bottom of the holding pocket elastic means, with the clamping ring relaxed, lift the friction inserts and press against the cover disc the holding pocket, where they are supported on the clamping ring or on lugs of the same.

3. Pit punch according to claim 2, characterized in that the elastic means are indirect Via an annular body that surrounds the friction inserts and which has lugs in recesses in the friction inserts intervenes, act on the friction inserts.

4. pit punch according to claim 2 or 3, characterized in that the elastic means are arranged in a ring around the flange lugs of the friction inserts, which hang them in the lower position in the Hold the clamping ring.

5. pit punch according to claim 1, 2, 3 or 4, characterized in that the elastic means consist of metal rings with rubber rings vulcanized between them.

6. pit punch according to one of the preceding claims, characterized in that the Holding pocket consists of a cast body which is placed on the outer die.

Considered publications: / German Patent Specifications No. 521 857, 971 032- rcfSJSi

1 sheet of drawings