CS264841B1 - Composite spindle in turning-machine - Google Patents
Composite spindle in turning-machine Download PDFInfo
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- CS264841B1 CS264841B1 CS500887A CS500887A CS264841B1 CS 264841 B1 CS264841 B1 CS 264841B1 CS 500887 A CS500887 A CS 500887A CS 500887 A CS500887 A CS 500887A CS 264841 B1 CS264841 B1 CS 264841B1
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Abstract
Riešenie sa týká kompozitného vřetena obrábacieho stroja, s cielom zamedzit vznik samobudených kmitov a zvýšit koeficient tlmenia. Podstatou riešenia je, že vřeteno pozostáva z vonkajšieho ocelového valca, v ktorom je uložený vnútorný ocelový válec. Medzi válce je prostredníctvom lepidla na báze polyméru vlepená húževnatá elastická vrstva, například z polyvinylchloridu. Riešenie možno využiť pre sústruhy, frézovačky, vrtačky a vyvrtávačky.The solution relates to a composite spindle machine tool in order to prevent it self-excited oscillations and increase coefficient damping. The essence of the solution is that the spindle consists of an external steel cylinder, in which the inner steel cylinder is mounted. Between the rollers is through the adhesive on polymer base glued tough elastic a layer, for example polyvinyl chloride. The solution can be used for lathes, milling machines, drills and boring machines.
Description
Vynález sa týká kompozitného vřetena obrébacieho stroja pre sústruhy, frézovačky, vrtačky a vyvrtávačky.The invention relates to a composite spindle of a milling machine for lathes, milling machines, drills and boring machines.
V súčasnosti známe vretená obrábacích strojov sú vyrábané z ocele ako monolitně kompozitně vretená zatial nie sú známe. Nedostatkom monolitných vrstiev je ich nízká odolnost proti vzniku samobudených kmitov a nízký koeficient tlmenia.The currently known spindles of machine tools are made of steel as monolithic composite spindles while they are not known. The disadvantages of the monolithic layers are their low resistance to self-excited oscillations and low damping coefficient.
Uvedený nedostatok dostraňuje kompozitně vřeteno obrábacieho stroja podlá vynálezu, ktorého podstatou je, že pozostáva z vonkajšieho ocelového valca, v ktorom je uložený vnútorný ocelový válec. Medzi vonkajší válec je prostredníctvom dvoch vrstiev lepidla na báze polyméru vlepena húževnatá elastická vrstva, například z polyvinylchloridu.This deficiency is overcome by the composite spindle of the machine tool according to the invention, which consists essentially of an outer steel cylinder in which the inner steel cylinder is mounted. A resilient elastic layer, for example of polyvinyl chloride, is glued between the outer roll by means of two layers of polymer-based adhesive.
Výhodou kompozitného vřetena podlá vynálezu je, že sa zabezpečí vysoká statická tuhost vřetena a dobré tlmiace vlastnosti. Zvýši sa medzná šířka řezu ako kritéria dynamickej stability systému uložemia vřetena.An advantage of the composite spindle according to the invention is that it provides high static spindle stiffness and good damping properties. The cut width is increased as the dynamic stability criteria of the spindle bearing system.
Na priloženom výkrese je zobrazený pozdlžný rez kompozitným vretenom podlá vynálezu.In the accompanying drawing, a longitudinal section of a composite spindle according to the invention is shown.
Kompozitně vřeteno podlá vynálezu pozostáva z vonkajšieho ocelového valca 1' v ktorom je uložený vnútorný ocelový válec 2. Medzi vnútornú plochu vonkajšieho valca 1 a vonkajšiu plochu vnútorného valca 2 je vložená húževnatá elastická vrstva 5_, například z polyvinylchloridu, opatřená dvoma stykovými vrstvami 2Ά lepidla na báze polyméru.The composite spindle according to the invention consists of an outer steel cylinder 1 'in which the inner steel cylinder 2 is arranged. polymer base.
Pri činnosti vřetena v procese obrábania je vřeteno vystavené účinkom vonkajších sil, ako sú režná sila, sila tiaže a iné, ktoré majú periodický časový priebech. Odozva systému uloženia vřetena sa za určitých podmienok prejavi v náreste amplitúdy kmitov, ktoré sú nepřípustné z celého radu dósledkov. Húževnato-elastická vrstva 5 plní funkciu sendviča, číže tlmiča tak torzných ako i prlečných kmitov. Stykové vrstvy 3, 2 lepidla obsahujú priečné kmity v dósledku toho, že lepidlo má modul pružnosti v šmiku 30 až 100-krát nižší ako húževnato-elastická vrstva 5, ktorá absorbuje torzné kmity. Táto kompozicia dvoch materiálov, z ktorých jeden má dobré tlmioe vlastnosti a druhý poskytuje vysokú pevnost vřetena, umožňuje dosiahnuť uvedené výhody.In the operation of the spindle in the machining process, the spindle is subjected to external forces such as power, gravity and others that have a periodic time course. Under certain conditions, the response of the spindle bearing system results in an increase in the amplitude of the oscillations that are inadmissible from a variety of consequences. The resilient-elastic layer 5 fulfills the function of a sandwich, the torsion damper of both the torsion and transverse vibrations. The adhesive interface layers 3, 2 contain transverse oscillations due to the adhesive having a modulus of elasticity in the shear 30 to 100 times lower than the tough elastic layer 5, which absorbs torsional oscillations. This composition of two materials, one of which has good damping properties and the other provides high spindle strength, makes it possible to achieve these advantages.
Vřeteno podlá vynálezu je možné využit pre všetky druhy obrábacich strojov.The spindle according to the invention can be used for all kinds of machine tools.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS500887A CS264841B1 (en) | 1987-07-02 | 1987-07-02 | Composite spindle in turning-machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS500887A CS264841B1 (en) | 1987-07-02 | 1987-07-02 | Composite spindle in turning-machine |
Publications (1)
Publication Number | Publication Date |
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CS264841B1 true CS264841B1 (en) | 1989-09-12 |
Family
ID=5394114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CS500887A CS264841B1 (en) | 1987-07-02 | 1987-07-02 | Composite spindle in turning-machine |
Country Status (1)
Country | Link |
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CS (1) | CS264841B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CZ309163B6 (en) * | 2020-11-28 | 2022-03-30 | ŠMT a.s. | Hybrid drilling spindle |
-
1987
- 1987-07-02 CS CS500887A patent/CS264841B1/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CZ309163B6 (en) * | 2020-11-28 | 2022-03-30 | ŠMT a.s. | Hybrid drilling spindle |
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