CS248072B1

CS248072B1 - CHUCK

Info

Publication number: CS248072B1
Application number: CS845827A
Authority: CS
Inventors: Imrich Toeth
Original assignee: Imrich Toeth
Priority date: 1984-07-30
Filing date: 1984-07-30
Publication date: 1987-01-15
Also published as: CS582784A1

Abstract

Riešenie sa týká sklučovadla, u ktorého sú využité odstředivé sily rotujúcich častí k zlepšeniu jeho vlastností. Podstata riešenia spočívá v tom, že k zabezpečeniu eliminácie poklesu upínacích sil připadne k bloikovaniu prvkov upínacieho mechanizmu sklučovadla sú využité medzičeíusťové segmenty sklučovadla v súčinnosti so závažiami, ktoré naviac sú prestavitelné, čo umožní změnu ich odstredivej sily v závislosti na polohe čelustí.The solution concerns a chuck in which centrifugal forces of rotating parts are used to improve its properties. The essence of the solution lies in the fact that to ensure the elimination of the decrease in clamping forces and to block the elements of the chuck clamping mechanism, the intermediate jaw segments of the chuck are used in cooperation with weights, which are additionally adjustable, which allows changing their centrifugal force depending on the position of the jaws.

Description

248072248072

Predmetoim vynálezu je sklučovadlo, kdesa rieši kompenzácia 'poklesu upínacích silvplyvom otáčok a možnosť blokovania up-nutej polohy. Obdobné doteraz známe sklu-čovadlá riešia kompenzáciu poklesu upína-cích sil použitím protizávaží působiacich cezrůzné převodové mechanizmy, ako páky,klíny a pod. na upínacie čeluste skíučovad-la dostredivo. Nakolko tieto převodové me-chanizmy sú uložen? v základ·nom telesesklučovadla, vplyvom otáčok je základné tě-leso značné zatažené, čo obmedzuje možnos-ti zvyšovania otáčok. Radiálny pohyb záva-žia je kinematicky viazaný na pohyb čelustea navlac v opačnom smere, či znlžuje mož-nost' zvyšovania ich hmotnosti a tým do-statočnej kompenzácie odstředivých sil prv-kov sklučovadla. Sú známe riešenia, kde odstředivé sily če-lustí působiace při rotácii sú zachytávanévonkajším telesom u ktorých však závažieje obdobné kinematicky viazané na pohybčelustí a naviac umiestnené za čeíusťou.Tieto riešenia zvyšujú šířku telesa siklučo-vadla a účinnost kompenzácie je poměrněnízká.SUMMARY OF THE INVENTION The present invention relates to a chuck, wherein it solves the compensation of the drop in clamping forces by the speed and the possibility of locking the clamped position. Similar hitherto known chucks solve the decrease in clamping forces by using counterweights acting through different gear mechanisms such as levers, wedges and the like. on the clamping jaws of the chuck-hub. To what extent are these transfer mechanisms saved? in the base of the telescoping agent, under the influence of revolutions the base body is considerably drawn, which limits the possibilities of increasing the speed. The radial movement of the weight is kinematically linked to the movement of the jaws in the opposite direction, reducing the possibility of increasing their weight and thereby compensating for the centrifugal forces of the first chuck. Solutions are known where the centrifugal forces of the fluid acting in rotation are retained by the outer body, but in which the weight is similar to the kinematically bound to the moving flesh and additionally located behind the chuck. These solutions increase the width of the silencer body and the efficiency of the compensation is relatively low.

Blokovanie upnutej polohy sa vačšinou uskluičovadiel nerieši a ked' áno, sú málo ú-činné. Uvedené nevýhody sú zmiernenésklučovadlom, ktorého podstatou je, že as-poň jeden prvok upínacieho mechanizmu jepřepojený prostredníctvom aspoň jednéhospojovacieho telesa, například pružnéhoprsténca, s medzičelusťovým segmentem zá-kladného telesa sklučovadla v priestoremedzi čelusťami sklučovadla. Ďalšou podstatou vynálezu je, že medziaspoň jedným prvkom upínacieho mechaniz-mu a aspoň jedným spojovacím telesom jevložený dotláčací komponent, ktorý je sním v zábere v priestore medzi medzičelus-ťovými segmenty sklučovadla, pričom jevýhodné, ikeď s prvkom silového převodu u-pínacieho mechanizmu je v zábere nezávislena jeho polohe.The locking of the clamped position is usually not solved by the barriers and, if so, is of little use. The above drawbacks are alleviated by a binder which is based on the fact that at least one element of the clamping mechanism is connected via at least one coupling body, for example an elastic ring, to the intermediate bed segment of the chuck base body in the space of the chuck jaws. It is a further object of the invention that a pressing component is inserted between the intermediate segments of the chuck with one element of the clamping mechanism and at least one connecting body, with the force transmission element of the clamping mechanism being advantageous. independent of its position.

Je výhodné, ked dotláčací komponent jev plynule prestavitelnom zábere s čeíusťoua je kinematicky přepojený s prvkom silo-vého převodu čeluste upínacieho mechaniz-mu tak, aby velkost ich převodu pre četusťbola rovnaká a ďalej, ked spevňovacie těle-so je kinematicky přepojené například ozu-beným prevodom s prvkom převodu upína-cieho mechanizmu sklučovadla.It is advantageous if the pressing component is in the continuously adjustable engagement with the claw is kinematically coupled with the force transfer element of the clamping mechanism of the clamping mechanism so that the size of their transmission for the piston is the same and further when the reinforcing body is kinematically coupled e.g. with a gearing element of the chuck clamping mechanism.

Sklučovadlom podta vynálezu sa ku kom-penzácii odstředivých sil čelustí využívá od-středivých sil medzičelušťových segmentovsklučovadla, ktorých účinok sa zvýši odstře-divým závažím umiestneným medzi čelusťa-mi, pričom základné iteleso je vplyvom otá-čok menej zaťažované, nakolko odstředivésily prenáša vonkajšie teleso. Súčasne všakzákladné teleso je zabezpečené týmto von-kajším telesom proti rozleteniu, čo je vý-hodné najma u sklučovadiel a hlbším výre-zom pre čeluste, například kde základné a upínacie čeluste, ktoré sú samostatné za se-bou vedené v telese sklučovadla.The inventive chuck is used to compensate the centrifugal forces by the jaws for the centrifugal forces of the interlayer segments, the effect of which is increased by the centrifugal weight placed between the jaws, the base body being less heavily loaded due to the centrifugal transfer of the outer body. At the same time, however, the basic body is provided with this outer body against spillage, which is particularly advantageous in the case of chucks and deeper cuts for the jaws, for example where the basic and clamping jaws are separate from one another in the chuck body.

Prenosom deformácií vonkajšieho telesana niektorý prvok silového převodu, napří-klad klinovú tyč, sa dosiahne blokovaniejeho polohy, čo prispieva k zvýšeniu bez-pečnosti v případe náhlého poklesu tlaku vtlakovom ovládacom rozvode sklučovadlav jednom případe a v druhom kompenzáciaodstředivých sil cez tento člen priamo. Za-řáděním odstředivého závažia do vyvažo-vacieho reťazca medzi čeluste sa zvýši úči-nok a samotné závažie může mať váčšiuhmotnost. Tým, že dostředivá sila zo spojo-vacieho telesa — vonkajšieho telesa — budepůsobit na čelusť prostredníctvom dotláča-cieho komponentu, ktorý je naviac přepo-jený kinematicky s niektorým zo známýchprevodov s prvkom silového převodu, je za-bezpečené ich neustále spolupůsobenie bezzměny polohy Spojovacieho telesa voči zá-kladnému telesu sklučovadlo a tým auto-matické zabezpečenie funkcie vyvažovaniapřipadne blokovania nezávisle na radiálnompohybe čelustí.By transferring the deformations of the outer body to a force transmission element, such as a wedge rod, a blocking of its position is achieved, which contributes to an increase in safety in the event of a sudden pressure drop in the chuck pressure control manifold in one case and in a second centering force compensation through that member. By incorporating the centrifugal weight into the balancing chain between the jaws, the effect is increased and the weight itself can have a higher weight. The fact that the centripetal force from the connecting body - the outer body - acts on the jaw by means of a pressing component, which is additionally coupled kinematically with any of the known gear units with a power transmission element, ensures their constant interaction with the change of the position of the connecting body with respect to the base body, the chuck and thus the automatic balancing function of the counterbalance independently of the radial movement of the jaws.

Na připojených výkresoch sú znázorněnépříklady sklučovadiel podlá vynálezu, kdena obr. 1 je čelný pohlad na sklučovadlozákladného usporiadania a na obr. 2 jehoosový rez prechádzajúci osou čeluste. Naobr. 3 je iný příklad sklučovadla podlá vy-nálezu, kde je blokovaný prvok silovéhopřevodu v tomto případe tangenciálna tyčnezávisle na svojej polohe cez ktorú je re-alizované i samotné vyvažovanie.In the accompanying drawings, examples of chucks according to the invention are shown, in which Figure 1 is a front view of the chuck of the basic arrangement and in Figure 2 its axial section passing through the jaw axis. Naobr. 3 is another example of a chuck according to the invention, wherein the blocked power transmission element in this case is tangentially independent of its position through which the balancing itself is realized.

Na obr. 4 je příklad vyvažovania u sklu-čovadla so samostatné prestavitelnými če-lusťami pomocou radiálnej skrutky ulože-né j v telese sklučovadla. Na obr. 5 je pří-klad sklučovadla podlá vynálezu s plynuleprestavitelnou vázbou medzi čelusťami avyvažovacím spojovacím telesom. Na obr. 6a 7 sú příklady usporiadania vyvažovačíchzávaží, umiestnených medzi čelusťami sklu-čovadla a na obr. 8 ich kinematické pre-pojenie s prvkom převodu a upínacieho me-chanizmu sklučovadla.Fig. 4 is an example of a balancing in a chuck with separate adjustable slides by a radial bolt mounted in the chuck body. Fig. 5 is an example of a chuck according to the invention with a continuously adjustable binding between the jaws and the balancing coupling body. Figures 6a and 7 are examples of balancing weight arrangements arranged between the chuck jaws and their kinematic interconnection with the chuck element and chucking mechanism in Figure 8.

Sklučovadlo 100 podlá vynálezu pozostá-va zo základného telesa 110, s jeho upína-cím mechanizmem 120, pozostávajúci z prv-kiov převodu 124, například klínového šmý-kadla ako je to vidieť na obr. 2 a obr. 5 kli-novej tyče z obr. 3, připadne upínacej skrut-ky obr. 4 a čelustí 123, ktorými je upnutévonkajšie teleso 300, například obrobok,dynamometer, připadne část iného zariade-nia a zo spojovacieho telesa 200 realizova-ného například ako pružný prstenec. V stave sklučovadlom upnutého vonkaj-šieho telesa 300 niektorým zo známých spů-sobov je spojoivacie teleso 200 v zábere smedzičelusťovými segmentami 112 základ-ného telesa 110 sklučovadla 100 len v mies-tach spevňovacieho záběru A, ktorý sa na-chádza v priestore medzi čelusťami 123The chuck 100 of the present invention consists of a base body 110, with its clamping mechanism 120, consisting of first gear 124, such as a wedge-shaped slide as shown in FIGS. 3 and / or the clamping screw of FIG. 4 and the jaws 123 by which the outer body 300 is clamped, for example a workpiece, a dynamometer, or a portion of another device and a connecting body 200, for example, as a resilient ring. In the state of the chuck-clamped outer body 300 by any of the known methods, the coupling body 200 is in engagement with the inner shell segments 112 of the chuck base body 110 only in the zones of reinforcement engagement A that is in the space between the jaws 123

Claims

1, 2, 3, 4 and 5, the bolt body 210, for example, has a bolt similar to that shown in FIG. For example, the engagement with the chamfer 123 and at least one element of the clamping mechanism 120, for example, with a power transmission element 124, as shown in FIG. 123 directly, as in FIGS. 1, 2, 6 or 7, for example through a bolt, as shown in FIG. 5. Considering that the reinforcement meshes A, A 1, A 1 'of the coupling body 200 so The base body 119 or the reinforcing bodies 210 are respectively pressed against the pressing blades B of the jaws 123 and 123 respectively. the punching component 212 displaced relative to one another 12 (P, with the spinner pulling, the centrifugal force acting in the reinforcement strokes A, A 1, A 1 ', and the center of the pusher strokes Bho is used for blinking, balancing the two) For example, a resilient coupling body 200 allows the clamping assembly of the clamping jaws 123 to be formed throughout the entire force movement of the clamping jaws 123 and, in accordance with FIG. It is advantageous if the silo movement of the elements of the transmission 124 is coupled cinematicly to the pressing component 212, for example by a wedge-shaped lever or toothed gear. so that their conversion over 123 is the same, which guarantees simultaneous limitation selects during the entire power lift in you By providing the clamping assembly of the stage of FIG. 4 in the sense of the invention, the delimitation of the selection in the balancing chain within the entire clamping and adjusting stroke of the jaws 123 is ensured by the known method housed in the body 110 of the chuck 100 of the transmission element 124, in this case radial The bolt is supported in the connecting body 200 by engagement with the abutment 123 and with its end fitting 124a, and the arcing chute produced by Ar allows the full effect of the balancing effect to be realized in any half-piece 123. FIG. 8 is a view of binding the radial movement of the jaws 123 to the radial movement of the strengthening body 210, in this case a weight formed as a bolt which engages with one end of the central toothed body 124b known to the second end of the nut; the thread 212b of the connecting body 200 and the securing means The correct balancing effect for the radial position of the jaws 123, since the correct choice of the sense of pitch of the screw — the donor body 210 — has a current centering motion. OBJECT

A chuck consisting of a base body made of a clamping mechanism by means of a transmission and of a jaw and an external hotel, e.g., a workpiece clamped in a jaw, characterized in that at least one element of the clamping mechanism (120) is connected via at least one connecting hotel (200) for example, a flexible ring with a honeycomb segment (112) of the base (110) of the chuck (100) in between the chucks (123) of the chuck (100).

2. The chuck according to claim 1, wherein the connecting body (200) is in engagement with the strengthening body (210), e.g., with a weight, in the space between the chocks (123) of the chuck (100).

3. A chuck according to claim 1 or 2, characterized in that a pressing component (212) is inserted between at least one member of the clamping mechanism (120) and the at least one coupling body (200) and is engaged in the space between BACKGROUND OF THE INVENTION [0004] The traction segments (112) of the chuck (100).

4. A chuck according to claim 2 or 3, characterized in that the pressing component (212) is in position engagement with the transmission element (124) of the clamping mechanism (120).

5. Chucks according to claim 2 or 3, characterized in that the pressing component (212) is in the adjustable engagement with the face (123).

6. The chuck of step 1 or 2 and 3.5, characterized in that the pressing component (212) is kinematically coupled to the element (124) of the clamp (123) of the clamping mechanism (120), e.g. the same (123 is the same.

7. A chuck according to any one of claims 1 to 6, characterized in that the reinforcing body (210) is, for example, connected to the gearbox with a gear element (124) of the chuck (120) of the chuck (100).