WO1992019404A1 - Procede pour la realisation de rainures de commande dans une douille de commande - Google Patents

Procede pour la realisation de rainures de commande dans une douille de commande Download PDF

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Publication number
WO1992019404A1
WO1992019404A1 PCT/EP1992/000954 EP9200954W WO9219404A1 WO 1992019404 A1 WO1992019404 A1 WO 1992019404A1 EP 9200954 W EP9200954 W EP 9200954W WO 9219404 A1 WO9219404 A1 WO 9219404A1
Authority
WO
WIPO (PCT)
Prior art keywords
control
cutting tool
control sleeve
sleeve
grooves
Prior art date
Application number
PCT/EP1992/000954
Other languages
German (de)
English (en)
Inventor
Wilfried Doster
Jörn SCHAMBERGER
Wolfgang LÖSCH
Original Assignee
Zf Friedrichshafen Ag
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 Zf Friedrichshafen Ag filed Critical Zf Friedrichshafen Ag
Publication of WO1992019404A1 publication Critical patent/WO1992019404A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/28—Grooving workpieces
    • B23C3/30—Milling straight grooves, e.g. keyways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/08—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of steering valve used
    • B62D5/083—Rotary valves

Definitions

  • the invention relates to a method for producing control grooves in a hollow, cylindrical control sleeve, in particular a rotary slide valve for power steering systems, according to the preamble of claim 1.
  • Such a method is known from DE-Al-29 12 118.
  • the axis of rotation of the cutting tool runs at an acute angle to the central axis of the control sleeve.
  • the cutting tool is moved along a path that runs parallel to the central axis of the control sleeve.
  • the invention is based on the object of specifying a method with which control grooves can be produced in a hollow, cylindrical control sleeve without the axial length of both the control grooves and the control sleeve being limited.
  • the solution is by the fact that the central axis of the cutting tool lies parallel to the central axis of the control sleeve and that the cutting tool and the control sleeve are moved relative to one another in a direction that runs radially — with respect to the control sleeve.
  • a cylindrical cutting tool is advantageously used.
  • the cutting tool or the bushing can be moved towards one another in a direction that runs radially with respect to the control bushing.
  • the cutting tool or the control sleeve is fed in the axial direction. This allows control grooves of different lengths to be produced with one tool.
  • a conical cutting tool is expediently used.
  • control bevels it is very easy to attach control bevels to the control groove.
  • the cutting tool or the control sleeve in addition to the feed movement by which the actual control groove is produced, executes a controlled movement with which at least one control chamfer is attached to the control groove.
  • Another possibility of attaching the control chamfers to the control groove is that after the actual control groove has been produced by a cutting tool of a certain diameter, another cutting tool with a different, preferably larger diameter is moved in the same way relative to the control sleeve.
  • the control chamfers can be produced in the same process as the actual control grooves without any additional effort. If the control chamfers are arranged in the control sleeve, a rotary slide valve which interacts with the control sleeve can be used are simplified in its control area compared to known rotary valves which are provided with control chamfers.
  • control grooves and the cylindrical inner surface of the control sleeve can be produced in one clamping.
  • control grooves essentially have an approximately semicircular or elliptical cross section.
  • a cutting tool with a certain diameter is required for a certain groove width, which corresponds approximately to the groove width.
  • the diameter of the cutting tool is larger than the width of the control groove.
  • the diameter of the cutting tool increases, its elasticity decreases.
  • the manufacturing accuracy for the control grooves is improved.
  • the flow conditions can be influenced favorably, for example with regard to flow noise.
  • FIG. 1 shows a longitudinal section through a control sleeve with a cutting tool
  • Fig. 2 shows the cross section through the control sleeve
  • FIG. 3 shows an enlarged detail from FIG. 2 according to detail III in FIG. 2.
  • a control sleeve 1 has a cylindrical inner surface 2 which runs in the longitudinal axis of the control sleeve.
  • the cylindrical inner surface 2 is interrupted by control grooves 3, which are arranged in the longitudinal direction of the control sleeve.
  • the control grooves end before the end of the control sleeve, so that there is no connection from the control groove in the axial direction to the outside of the control sleeve.
  • control grooves are also conceivable which are open towards one or the other or also towards both ends of the control sleeve 1.
  • An overhead control groove is designated 3A in FIG. 1.
  • the method for producing the control grooves will be explained below with reference to this control groove 3A.
  • a cylindrical cutting tool 10 rotates around its central axis se 11, which is parallel to the central axis 12 of the control sleeve 1.
  • the cutting tool 10 is inserted into the hollow control sleeve 1 from one side. Thereafter, the cutting tool 10 is moved onto the cylindrical inner surface 2 and into it in a direction that extends radially outward — in relation to the control sleeve 1.
  • the central axis 11 of the cutting tool 10 can be held with the same effect when the control sleeve 1 is moved in the direction of the cutting tool.
  • a cutting tool 10 is used, the axial length of which corresponds exactly to the axial length of the control groove 3 to be produced, the cutting tool 10 is only moved in the direction described. If, on the other hand, a control groove 3 is to be produced, the axial length of which is greater than the axial length of the cutting tool 10, then a relative movement between the control sleeve 1 and the cutting tool 10 must also take place in the axial direction.
  • control grooves 3 are to be produced, the control edges 13 and 14 of which are parallel to one another, a cylindrical cutting tool is used. If, on the other hand, the control edges of a control groove are to run at a certain angle to one another, a conical cutting tool is expediently used.
  • a control sleeve is used, for example, in a rotary slide valve according to DE-Al-39 30 541.
  • control chamfers 15 are attached to the control grooves.
  • These control chamfers 15, which can be attached to one or both control edges 13, 14, are produced by the cutting tool 10, in which, in addition to the feed movement for the production of the control groove, a controlled movement between the control sleeve 1 and the Cutting tool 10 is executed which corresponds to the desired course of the control chamfer 15.
  • the cutting tool 10 can be used both for producing the control groove 3 and for producing the control chamfer (s) 15.
  • control chamfer 15 is to have an arcuate shape and extend only over part of the length of the control groove 3, such a control chamfer can be produced by a cutting tool whose diameter corresponds exactly to the contour of the control chamfer 15.
  • the cutting tool 10 can be, for example, a milling cutter or a grinding wheel. 1 and 2, a grinding wheel is shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Power Steering Mechanism (AREA)

Abstract

Dans un procédé pour la réalisation de rainures de commande (3) dans une douille de commande cylindrique creuse (1), laquelle est utilisée en particulier pour une soupape à tiroir rotatif pour directions assistées, un outil de coupe (10) tourne autour de son axe médian (11). L'outil de coupe (10) est introduit dans la douille de commande creuse (10) et mis en prise avec la surface cylindrique intérieure (2) de la douille de commande (1). L'axe médian (11) de l'outil de coupe (10) est alors parallèle à l'axe médian (12) de la douille de commande (1). L'outil de coupe (10) est avancé radialement vers l'extérieur par rapport à la douille de commande (1).
PCT/EP1992/000954 1991-05-07 1992-05-02 Procede pour la realisation de rainures de commande dans une douille de commande WO1992019404A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4114830.4 1991-05-07
DE19914114830 DE4114830A1 (de) 1991-05-07 1991-05-07 Verfahren zur herstellung von steuernuten in einer steuerbuechse

Publications (1)

Publication Number Publication Date
WO1992019404A1 true WO1992019404A1 (fr) 1992-11-12

Family

ID=6431129

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1992/000954 WO1992019404A1 (fr) 1991-05-07 1992-05-02 Procede pour la realisation de rainures de commande dans une douille de commande

Country Status (2)

Country Link
DE (1) DE4114830A1 (fr)
WO (1) WO1992019404A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5390408A (en) * 1991-04-12 1995-02-21 A.E. Bishop & Associates Pty. Limited Slotting
ES2166254A1 (es) * 1999-04-08 2002-04-01 Zulaica Urbano Arrizabalaga Procedimiento de construccion aplicable a una cerradura de llave y cerradura obtenida con el mismo.

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2960461B1 (fr) * 2010-05-27 2012-07-27 Snecma Procede d’usinage d’alveoles d’un disque de turbine d'une turbomachine
CN104801748A (zh) * 2015-03-31 2015-07-29 徐州重型机械有限公司 一种反铣加工方法
CN110732941A (zh) * 2019-10-25 2020-01-31 付晓明 一种灯具竖直杆的侧壁通槽打磨机构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5442088A (en) * 1977-09-07 1979-04-03 Ntn Toyo Bearing Co Ltd Method for providing a window hole in a cylindrical blank
US4276678A (en) * 1977-12-14 1981-07-07 Gunter & Cooke, Inc. Ring doffer
DE3346874A1 (de) * 1982-12-27 1984-06-28 Koyo Auto-Mech., Co Ltd., Kashihara, Nara Steuerventil fuer ein kraftunterstuetztes lenksystem und verfahren zur herstellung eines steuerkoerpers fuer dieses steuerventil
JPS59128051A (ja) * 1983-01-07 1984-07-24 Toyoda Mach Works Ltd ロ−タリサ−ボバルブ
JPS59226775A (ja) * 1983-06-06 1984-12-19 Jidosha Kiki Co Ltd 弁スリ−ブ及びその製造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5442088A (en) * 1977-09-07 1979-04-03 Ntn Toyo Bearing Co Ltd Method for providing a window hole in a cylindrical blank
US4276678A (en) * 1977-12-14 1981-07-07 Gunter & Cooke, Inc. Ring doffer
DE3346874A1 (de) * 1982-12-27 1984-06-28 Koyo Auto-Mech., Co Ltd., Kashihara, Nara Steuerventil fuer ein kraftunterstuetztes lenksystem und verfahren zur herstellung eines steuerkoerpers fuer dieses steuerventil
JPS59128051A (ja) * 1983-01-07 1984-07-24 Toyoda Mach Works Ltd ロ−タリサ−ボバルブ
JPS59226775A (ja) * 1983-06-06 1984-12-19 Jidosha Kiki Co Ltd 弁スリ−ブ及びその製造方法

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 3, no. 65 (M-61)6. Juni 1979 & JP,A,54 042 088 ( TOYO BEARING SEIZO K.K. ) 4. März 1979 *
PATENT ABSTRACTS OF JAPAN vol. 8, no. 253 (M-339)(1690) 20. November 1984 & JP,A,59 128 051 ( TOYODA KOKI K.K. ) 24. Juli 1984 *
PATENT ABSTRACTS OF JAPAN vol. 9, no. 103 (M-377)(1826) 8. Mai 1985 & JP,A,59 226 775 ( JIDOSHA KIKI K.K. ) 19. Dezember 1984 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5390408A (en) * 1991-04-12 1995-02-21 A.E. Bishop & Associates Pty. Limited Slotting
ES2166254A1 (es) * 1999-04-08 2002-04-01 Zulaica Urbano Arrizabalaga Procedimiento de construccion aplicable a una cerradura de llave y cerradura obtenida con el mismo.

Also Published As

Publication number Publication date
DE4114830A1 (de) 1992-11-12

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