BE449640A - - Google Patents

Info

Publication number
BE449640A
BE449640A BE449640DA BE449640A BE 449640 A BE449640 A BE 449640A BE 449640D A BE449640D A BE 449640DA BE 449640 A BE449640 A BE 449640A
Authority
BE
Belgium
Prior art keywords
emi
shaft
tailstock
conical
support
Prior art date
Application number
Other languages
French (fr)
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.)
Publication of BE449640A publication Critical patent/BE449640A/fr

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B23/00Tailstocks; Centres
    • B23B23/04Live centres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2233/00Details of centres or drivers
    • B23B2233/12Centres or drivers with a special arrangement of bearings or with special bearings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2260/00Details of constructional elements
    • B23B2260/008Bearings
    • B23B2260/0082Sliding contact bearings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2260/00Details of constructional elements
    • B23B2260/008Bearings
    • B23B2260/0087Preloading of bearings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Description

       

   <EMI ID=1.1> 

  
outils analogues.

  
La présente invention concerne une contre-pointe tournante

  
 <EMI ID=2.1> 

  
où, pour l'arbre de la contre-pointe, est prévu un support glissant réglable pour la réception de la pression radiale, en combinaison

  
avec un support à roulement pour l'absorption de la pression axiale,

  
et elle consiste en ce que l'arbre de contre-pointe possède des surfaces de roulement à double cône, inclinées l'une sur l'autre, l'espace vide ainsi formé dans le carter étant rempli de corps butées

  
 <EMI ID=3.1> 

  
construites comme paliers à glissement réglables tandis que, pour l'absorption de la pression axiale, on utilise, comas connu, des paliers à billes convenablement disposés. Les bagues coniques externe. servant de paliers de glissement et faites en une ou plusieurs pièce*, peuvent être pressées contra les surfaces coniques de l'arbre

  
de contra-pointa par des organes de serrage agissant en direction

  
axiale, tels que des disques élastiques, des ressorts, etc. par quoi  <EMI ID=4.1> 

  
ment. Par la réunion conforme à l'invention d'un support de glissement à double cane et d'un palier à billes, on obtient une rotation extrêmement précise de la contre-pointe et en mime temps la posaibilité d'une compensation complète automatique ou arbitraire de

  
 <EMI ID=5.1> 

  
support.

  
Quelques formes de réalisation de la contre-pointe tournante conforme à l'invention sont représentées en cuupe longitudinale au dessin annexa dans lequel  <EMI ID=6.1> 

  
et un cône venu avec l'arbre, les baguas de butte étant d'une seule pièce et fig.3 représente une disposition avec bagues de butée réglables de l'extérieur.

  
 <EMI ID=7.1>   <EMI ID=8.1> 

  
tion d'une ou plusieurs baguaa coniques d'une Seule pièce ou en plusieurs pièces ; cette bague est pressée par des via. travaraant

  
 <EMI ID=9.1> 

  
combinaison avec un palier pour arbre long, qui présenta l'avantage de décharger les surfaces de frottement coniques qui sont assurées

  
 <EMI ID=10.1> 

  
la bague de roulement voisine du palier à billes. La graissage s'effectue à partir de ce palier de pression, le lubrifiant étant uniformément réparti sur les surfaces de glissement par des rainures

  
 <EMI ID=11.1>  

  
 <EMI ID=12.1> 



   <EMI ID = 1.1>

  
similar tools.

  
The present invention relates to a rotating tailstock

  
 <EMI ID = 2.1>

  
where, for the tailstock shaft, an adjustable sliding support for receiving the radial pressure is provided, in combination

  
with a rolling support for the absorption of axial pressure,

  
and it consists in that the tailstock shaft has double-cone rolling surfaces, inclined one on the other, the empty space thus formed in the housing being filled with stop bodies

  
 <EMI ID = 3.1>

  
They are constructed as adjustable sliding bearings while, for the absorption of axial pressure, suitably arranged ball bearings are used, as is known. The outer taper rings. acting as sliding bearings and made in one or more pieces *, can be pressed against the conical surfaces of the shaft

  
of contra-pointa by clamping devices acting in direction

  
axial, such as elastic discs, springs, etc. by what <EMI ID = 4.1>

  
is lying. By the combination according to the invention of a sliding support with double cane and a ball bearing, an extremely precise rotation of the tailstock is obtained and at the same time the posaibility of a complete automatic or arbitrary compensation. of

  
 <EMI ID = 5.1>

  
support.

  
Some embodiments of the rotating tailstock according to the invention are shown in longitudinal cuupe in the appended drawing in which <EMI ID = 6.1>

  
and a cone come with the shaft, the hillock rings being in one piece and fig.3 shows an arrangement with stop rings adjustable from the outside.

  
 <EMI ID = 7.1> <EMI ID = 8.1>

  
tion of one or more conical baguaa in One piece or in several pieces; this ring is pressed by via. working

  
 <EMI ID = 9.1>

  
combination with a long shaft bearing, which had the advantage of relieving the conical friction surfaces which are ensured

  
 <EMI ID = 10.1>

  
the rolling ring adjacent to the ball bearing. Lubrication is carried out from this pressure stage, the lubricant being uniformly distributed over the sliding surfaces by grooves

  
 <EMI ID = 11.1>

  
 <EMI ID = 12.1>


    

Claims (1)

<EMI ID=13.1> <EMI ID = 13.1> risée en ce jutant ou les deux surfaces coniques de l'arbre sont formées par une bague conique (b) fixée sur lui sana pouvoir tourner. jutant where the two conical surfaces of the shaft are formed by a conical ring (b) fixed on it without being able to rotate. <EMI ID=14.1> <EMI ID = 14.1>
BE449640D 1943-04-01 BE449640A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR893033T 1943-04-01

Publications (1)

Publication Number Publication Date
BE449640A true BE449640A (en)

Family

ID=9389811

Family Applications (1)

Application Number Title Priority Date Filing Date
BE449640D BE449640A (en) 1943-04-01

Country Status (3)

Country Link
BE (1) BE449640A (en)
CH (1) CH238877A (en)
FR (1) FR893033A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE894493C (en) * 1951-01-16 1953-10-26 Johann Weber Revolving lathe center for turning or grinding benches
DE1119626B (en) * 1957-01-07 1961-12-14 Otto Lutz Backlash-free rotating lathe tip

Also Published As

Publication number Publication date
CH238877A (en) 1945-08-31
FR893033A (en) 1944-05-26

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