RO98655B1 - Self-centring chucking - Google Patents

Self-centring chucking

Info

Publication number
RO98655B1
RO98655B1 RO131362A RO13136287A RO98655B1 RO 98655 B1 RO98655 B1 RO 98655B1 RO 131362 A RO131362 A RO 131362A RO 13136287 A RO13136287 A RO 13136287A RO 98655 B1 RO98655 B1 RO 98655B1
Authority
RO
Romania
Prior art keywords
self
centering mandrel
centring
chucking
sleeve
Prior art date
Application number
RO131362A
Other languages
Romanian (ro)
Inventor
Neculai Simionescu
Dumitru Bontas
Vasile Puiu
Viorel Ungureanu
Mirel Ionescu-Adrian
Original Assignee
Institutul De Subingineri
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Institutul De Subingineri filed Critical Institutul De Subingineri
Priority to RO131362A priority Critical patent/RO98655B1/en
Publication of RO98655B1 publication Critical patent/RO98655B1/en

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  • Gripping On Spindles (AREA)

Abstract

Inventia se refera la o mandrina autocentrata destinata fixarii sculelor sau pieselor, în vederea prelucrarii pe diferite masini-unelte, de exemplu strunguri, masini de frezat. Mandrina autocentranta, conform inventiei, este alcatuita dintr-o bucsa elastica montata într-un corp, antrenat de arborele principal al masinii unelte. Strângerea falcilor bucsei elastice se obtine prin actionarea unui piston hidraulic care, prin intermediul unui rulment-axial cu bile, deplaseaza axial manson conic. Revenirea în pozitia initiala se obtine prin destinderea unor arcuri-disc tensionate de mansonul conic. The invention relates to a self-centering mandrel for fastening tools or parts for machining on various machine tools, for example lathes, milling machines. The self-centering mandrel according to the invention consists of an elastic sleeve mounted in a body, driven by the main shaft of the machine tool. The tightening of the elastic bushings is obtained by the action of a hydraulic piston which, by means of an axial ball bearing, axially moves the conical sleeve. The return to the initial position is achieved by loosening some tensile discs tensioned by the tapered sleeve.

RO131362A 1987-12-28 1987-12-28 Self-centring chucking RO98655B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO131362A RO98655B1 (en) 1987-12-28 1987-12-28 Self-centring chucking

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO131362A RO98655B1 (en) 1987-12-28 1987-12-28 Self-centring chucking

Publications (1)

Publication Number Publication Date
RO98655B1 true RO98655B1 (en) 1990-07-30

Family

ID=40906751

Family Applications (1)

Application Number Title Priority Date Filing Date
RO131362A RO98655B1 (en) 1987-12-28 1987-12-28 Self-centring chucking

Country Status (1)

Country Link
RO (1) RO98655B1 (en)

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