FR2325859A1 - Ball screw for machine tool use - has transfer passage with lip to pick up balls and bent through right angle - Google Patents

Ball screw for machine tool use - has transfer passage with lip to pick up balls and bent through right angle

Info

Publication number
FR2325859A1
FR2325859A1 FR7507670A FR7507670A FR2325859A1 FR 2325859 A1 FR2325859 A1 FR 2325859A1 FR 7507670 A FR7507670 A FR 7507670A FR 7507670 A FR7507670 A FR 7507670A FR 2325859 A1 FR2325859 A1 FR 2325859A1
Authority
FR
France
Prior art keywords
lip
pick
balls
bent
passage
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
FR7507670A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LEGUEU PIERRE
Original Assignee
LEGUEU PIERRE
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 LEGUEU PIERRE filed Critical LEGUEU PIERRE
Priority to FR7507670A priority Critical patent/FR2325859A1/en
Publication of FR2325859A1 publication Critical patent/FR2325859A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
    • F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
    • F16H25/2214—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls with elements for guiding the circulating balls

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

This ball screw is suitable for use in precision machine tools and analogue calculating machines. The transfer passage (6) from the screw thread (3) to the recycling channel (5) is bent in a quarter circle and its end (8) is cut to form a lip (9). This lip ensures a smooth pick up of balls from the thread passage. Recesses (13) milled in the nut at each end of the thread guide the transfer passages so that they are tangential to the thread at the ball pick up and delivery points. The other ends of the transfer passages are inserted in a longitudinal passage (11) in the nut and abut on shoulders (10) in that passage.
FR7507670A 1975-03-12 1975-03-12 Ball screw for machine tool use - has transfer passage with lip to pick up balls and bent through right angle Withdrawn FR2325859A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7507670A FR2325859A1 (en) 1975-03-12 1975-03-12 Ball screw for machine tool use - has transfer passage with lip to pick up balls and bent through right angle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7507670A FR2325859A1 (en) 1975-03-12 1975-03-12 Ball screw for machine tool use - has transfer passage with lip to pick up balls and bent through right angle

Publications (1)

Publication Number Publication Date
FR2325859A1 true FR2325859A1 (en) 1977-04-22

Family

ID=9152449

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7507670A Withdrawn FR2325859A1 (en) 1975-03-12 1975-03-12 Ball screw for machine tool use - has transfer passage with lip to pick up balls and bent through right angle

Country Status (1)

Country Link
FR (1) FR2325859A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0418999A1 (en) * 1989-09-19 1991-03-27 Dana Corporation Ball screw return system
CN100441916C (en) * 2004-08-06 2008-12-10 日本精工株式会社 Ball circulating member and ball screw

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0418999A1 (en) * 1989-09-19 1991-03-27 Dana Corporation Ball screw return system
CN100441916C (en) * 2004-08-06 2008-12-10 日本精工株式会社 Ball circulating member and ball screw

Similar Documents

Publication Publication Date Title
ES443740A1 (en) Tools and methods for machining bores
FR2325859A1 (en) Ball screw for machine tool use - has transfer passage with lip to pick up balls and bent through right angle
US2408398A (en) Multiple extrusion
ES2028983T3 (en) IMPROVED SCREW.
GB609854A (en) Improvements relating to screw and nut mechanisms
ATE41047T1 (en) BALL SCREW.
DE601733C (en) Multiple brush guides
FR1515352A (en) Machine equipped with tools for rolling conical threaded parts on screws, in particular on wood screws and similar screws
JPS55120976A (en) Cylinder-grinding method for longish substance
JPS55115518A (en) Nails or screws supplying device
FR2385460A1 (en) Drawing arrangement for accurate bar on rod - in which the material is accurately guided into the opening of a drawing die
FR2458009A1 (en) Travelling ball screw and nut gear - uses multistart helix with correspondingly smaller-dia. balls for reduced weakening of spindle
US2658314A (en) Lapping tool
JPS5440387A (en) Grooving by grindstone
NL7500779A (en) Sliding sleeve for drawing chalk - contains chalk slide screwing into sleeve with access openings allowing turning
FR2313164A1 (en) Drawbar adaptor for taper shank milling cutter - has stub end permanently held inside nose adaptor and screwed into end of cutter
JPS5213227A (en) Ball screw stearing device
JPS55155942A (en) Lead chuck
FR2226877A5 (en) Notched circular nut and mating peg spanner - notches are rectangular with rounded ends which mate with peg
JPS57211420A (en) Taper cutting equipment
GB1097602A (en) Improvements in or relating to the production of screw threads by tapping
FR2436659A1 (en) Wood moulder workpiece transfer assembly - has foot operated grip for wood and runners directing wood towards cutting tool
JPS6458424A (en) Screw working device
JPS53117883A (en) Boring device with blade correcting means
JPS52145965A (en) Feed chute

Legal Events

Date Code Title Description
ST Notification of lapse