CS238829B1

CS238829B1 - Clamping device for rotating parts

Info

Publication number: CS238829B1
Application number: CS824929A
Authority: CS
Inventors: Imrich Toeth
Original assignee: Imrich Toeth
Priority date: 1982-06-30
Filing date: 1982-06-30
Publication date: 1985-12-16
Also published as: CS492982A1

Abstract

Predmetom vynálezu je upínacie zariadenie pre rotujúce súčiastky, kde sa rieši vazba aspoň jeho dvoch prvkov. Upínacím zariadením podl'a vynálezu sa zjednoduší systém eliminácie poklesu upínacích sil, ktoré je velmi jednoduché a umožní případné zvýšenie otáčok alebo vylúčenie strediacich prvkov upínacieho zariadenia.The subject of the invention is a clamping device for rotating components, where the coupling of at least two of its elements is solved. The clamping device according to the invention simplifies the system of eliminating the decrease in clamping forces, which is very simple and allows for a possible increase in speed or the elimination of centering elements of the clamping device.

Description

Predmetom vynálezu je upínacie zariadenie pre rotujúce súčiastky, kde sa rieši vazba aspoň jeho dvoch prvkov.The object of the invention is a clamping device for rotating parts, where the coupling of at least two of its elements is solved.

Obdobné doteraz známe upínacie zariadenia pre rotujúce súčiastky pozostávajúce zo základného telesa spojeného s unášacím zariadením například vretenom obráhacieho stroja, zo střediscích prvkov pohybujúcich sa od a k súčiastke a zo súčiastky majú tú vefkú nevýhodu, že zvyšováním otáčok značné klesá upínacia sila vplyvom odstredivej sily strediacieh prvkov. Tento nedostatok sa eliminuje různými systémami mechanickými, například protizávažiami působiacim cez páky na strediace prvky dostredivo, ktoré sú však značné komplikované, Je ďalej žiadúci neustáli přívod energie zdroja upínacej sily počas otáčok, například při použití hydraulických ovládacích jednotiek u sklučovadiel.Similar prior art clamping devices for rotating parts consisting of a base body coupled to a driving device, for example a spindle of a grooving machine, of centers of elements moving from and to the part and of the component have the great disadvantage that by increasing the rotational speed. This drawback is eliminated by various mechanical systems, for example counterweights acting centrally through the levers on the centering elements, but which are considerably complicated. Further, it is desirable to continuously supply power to the clamping force during rotation, for example using hydraulic control units in chucks.

Uvedené nevýhody sú zmiernené upínacím -zariadením pre rotujúce súčiastky,. ktorého podstatou je to, že medzi aspoň jednou dvojicou tvořenou zo základného telesa súčiastky a strediacieh prvkov upínacieho zariadenia je vrstva spájacieho materiálu. Upínacím zariadením podfa vynálezu sa zjednoduší systém eliminácie poklesu upínacích sil, je velmi rýchle a v podstatě nevnáša přídavné deformácie do upínaceho zariadenia pri súčasnom vylúčení akýchkofvek dalších pohyblivých komplikujúcich prvkov. Naviac v niektorých prípadoch umožní vylúčenie rotujúcich strediacieh prvkov z upínacieho zariadenie úplné. Upínacím zariadením sa v podstatě umožní při skúškach stanovit maximálně otáčky upínacieho zariadenia pri silnej blokovacej vazbě strediacieh prvkov vůči základnému telesu, připadne zvýšit otáčky upínacieho zariadenia bližšie k hodnotám otáčok plných rotujúcich kotúčov, znížiť podstatné ovládaciu silu pri obrábaní a v nie poslednom radě zvýšit bezpečnost’ prevádzky.These disadvantages are alleviated by the clamping device for rotating parts. the essence of which is that there is a layer of bonding material between at least one pair formed from the base body and the centering elements of the clamping device. The clamping device of the present invention simplifies the system of eliminating the drop in clamping forces, is very fast, and does not substantially impart additional deformations to the clamping device while eliminating any other movable complicating elements. Moreover, in some cases, the removal of the rotating centering elements from the clamping device makes it possible to completely. Essentially, the clamping device makes it possible in the tests to determine the maximum speed of the clamping device with a strong locking of the centering elements relative to the base body, possibly to increase the speed of the clamping device closer to the rotational value of full rotating disks, reduce significant control force during machining. .

Claims

Clamping device for rotating components, comprising a base body coupled to a driving device, for example a spindle of a machine tool, centering elements moving from and to a component, characterized in that at least between two of the base body elements (10), a component ( 20) and centering elements (30) of the clamping device (100) is shown in the accompanying drawing, an example of an embodiment of the invention is shown. 1, a chuck 100 in the form of a chuck is shown. In FIG. 2 is a partial cross-sectional view of the clamping device 100 of FIG. 1 through plane I-I with the depiction of the helmet 42 in a flat contact between the elements of the clamping device. The clamping device 100 according to the invention consists of a base body 10, centering elements 30 in the form of chuck jaws and a component 20 inserted into the clamping device 100. After inserting the component 20 between the centering elements 30, moving it towards the component in the interface flat between two of the elements 10, 20, 30, the bonding material layer 40 preferably transmits an electron beam, since the surrounding of the joint will be little affected. The bonding material layer is transferable from an add-on material which by melting joins the two elements by fusing into the helmet 42 of at least one of said elements, or welding them completely, or from the material of at least one of said elements of the pair.

The release of the component is accomplished by evaporating the layer of bonding material, for example, by laser, or by releasing the kinematic mechanism in the case of a scaffold, or removing the bonding layer by machining directly on the machine.

The bonding material layer can also be formed from materials which are meltable, washable or combustible, for example on the basis of tin, or plastics filled in the recesses, or by the use of an electrorheological effect.

The clamping device is preferably applicable, for example, when clamping thin-walled components in the bearing industry.

BACKGROUND OF THE INVENTION In the present invention, a flat sheet of bonding material (40) is formed.

Clamping device according to claim 1, characterized in that the layer of binding material (40) is melted.

Clamping device according to claim 1 or 2, characterized in that the layer of binding material (40) is made of material of at least one of a pair of elements (10, 20, 30).