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WO1986004293A1 - Procede de tournage en porte a faux, support de porte-outil et porte-outil - Google Patents

Procede de tournage en porte a faux, support de porte-outil et porte-outil Download PDF

Info

Publication number
WO1986004293A1
WO1986004293A1 PCT/AU1986/000017 AU8600017W WO8604293A1 WO 1986004293 A1 WO1986004293 A1 WO 1986004293A1 AU 8600017 W AU8600017 W AU 8600017W WO 8604293 A1 WO8604293 A1 WO 8604293A1
Authority
WO
WIPO (PCT)
Prior art keywords
toolrest
support
bed
article
headstock
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.)
Ceased
Application number
PCT/AU1986/000017
Other languages
English (en)
Inventor
Michael John Darlow
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1986004293A1 publication Critical patent/WO1986004293A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C7/00—Wood-turning machines; Equipment therefor
    • B27C7/06—Arrangements for guiding or supporting the tool, e.g. tool rests

Definitions

  • the present invention relates to a method of outboard turning of an article on a lathe, a cantilever toolrest support, and a toolrest.
  • the objects of the present invention are to provide a method of outboard turning, a cantilever toolrest support, and a toolrest which will substantially overcome, or ameliorate, the above mentioned disadvantages.
  • a method of outboard turning of an article on a lathe having a headstock, a tailstock and a bed with said article being mounted on said headstock facing away from said tailstock, characterised in that a cantilever toolrest support is positioned under said bed below said headstock and extends away from said bed, a toolrest holder is mounted on said support and is adjustable between a plurality of locations on said support, and a toolrest is held in said toolrest holder, said toolrest having oppositely located tool supporting and article clearing bevels.
  • a toolrest for use with the above described method, the toolrest having oppositely located tool supporting and article clearing bevels.
  • a cantilever toolrest support for use in the above described outboard turning method, the support being substantially planar and being adapted to be positioned under the bed of the lathe at its headstock end, with the support extending away from the headstock.
  • Fig 1 is a front elevation of a substantially conventional lathe having an outboard turning support plate upon which a toolrest holder is mounted and which in turn supports a toolrest,
  • Fig 2 is a cross-sectional view along the line I-I of Fig 1,
  • Fig 3 is a plan view of three toolrest supports each in accordance with the present invention.
  • Fig 4 is a perspective view of.one of the toolrests of Fig 3, and Fig 5 is a vertical cross-section through a bowl being turned in accordance with the method of the preferred embodiment, and
  • the preferred embodiment of the present invention is put into practice with a substantially conventional lathe 1 having a headstock 2 and a tailstock 3. Mounted for outboard turning on the headstock 2 is a wooden bowl 4.
  • the lathe 1 is normally supported by a bench or legs 5, however, a planar outboard turning support plate 6 and a levelling plate 7 are positioned between the lathe 1 and legs 5 at the headstock and tailstock ends of the bed 8 of the lathe respectively. This is easily accomplished by passing the bolts which connect the legs 5 to the bed 8 through appropriately positioned holes located in the support plate 6 and levelling plate 7.
  • an outboard toolrest holder 10 is releasably secured to the support plate 6 by means of a fastener 11.
  • a slot 12 (Fig 2) in the holder 10 permits the position of the holder 10 on the support plate 6 to be adjusted.
  • the holder 10 carries a toolrest 13 which supports a cutting tool 14 with which the bowl 4 is turned.
  • the support plate 6 and levelling plate 7 can be combined into a single plate which extends along the length of the bed 8.
  • a prop or strut 15 can be provided at the free end of the support plate 6 to provide additional rigidity for the holder 10.
  • the preferred form of toolrest 13 is best illustrated in Figs 3 to 6. As seen in Figs 3 and 4, the toolrest 13 preferably has a substantially S-shape when viewed in plan, the degree of curvature of the toolrest 13 selected for a particular job, or a particular part of a job, depending upon the curvature of the article to be turned.
  • the toolrest 13 is provided with a modified rectangular cross-section.
  • the toolrest 13 has an upper surface 20, a lower surface 21 tone a front surface 22 and a rear surface 23.
  • Extending along the length of the toolest 13 and also extending between the upper surface 20 and front surface 22 is a first bevel 24 which supports the tool 14.
  • the angle between the bevel 24 and the vertical is preferably approximately 25° which is approximately less than or equal to the usual sharpening angle of the tool 14.
  • the width of the upper surface 20 is preferably approximately 2mm.
  • a second bevel 25 which is substantially opposite to the first bevel 24.
  • the first bevel 24 supports the cutting tool 14 at an inclined angle which is to be preferred in turning wooden articles.
  • the second, article clearing, bevel 25 enables the toolrest 13 to be located very close to the bowl 4. In this way, the distance between the cutting tip or edge 27 of the tool 14 can be maintained at a short spacing from the region in which the tool 14 is supported by the toolrest 13. This ⁇ > tends to restrict any -flexure of the tool 14 to a minimum.
  • the horizontal distance 30 between the bowl 4 and the region on the toolrest 13 which supports the tool 14, is also kept to a minimum. This results in better control of the tool 14.
  • the invention is not restricted to wooden articles since the present invention is also of use in the finishing of spun metal articles.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Machine Tool Units (AREA)

Abstract

Procédé de tournage en porte à faux d'un article (4) sur un tour (1), un support de porte-outil cantilever (10) et un porte-outil (13). Le support du porte-outil (13) est de préférence plan et est positionné sous le banc (6) du tour (1) au-dessous de la poupée (2). Une plaque de nivellement (6) est positionnée sous l'extrémité côté poupée (3) du banc (8). Alternativement, le support (13) peut s'étendre sur toute la longueur du banc (8). Le porte-outil (13) possède un biseau (24) de support d'outil s'étendant sur un bord supérieur du porte-outil (13) et un biseau de dégagement d'article (24) s'étendant sur le bord inférieur opposé du porte-outil (13). En utilisant le porte-outil réglable ci-décrit (10) monté sur le support de porte-outil cantilever (13), il est possible de tourner un article tel qu'un bol (4) en maintenant l'angle (14) entre l'outil et la verticale approximativement égal à l'angle habituel d'affûtage de l'outil. La distance horizontale entre l'article (4) et la région où l'outil (14) est supporté est maintenue à une valeur minimale.
PCT/AU1986/000017 1985-01-29 1986-01-28 Procede de tournage en porte a faux, support de porte-outil et porte-outil Ceased WO1986004293A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AUPG9054 1985-01-29
AUPG9053 1985-01-29
AU905485 1985-01-29
AU905385 1985-01-29

Publications (1)

Publication Number Publication Date
WO1986004293A1 true WO1986004293A1 (fr) 1986-07-31

Family

ID=25613335

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1986/000017 Ceased WO1986004293A1 (fr) 1985-01-29 1986-01-28 Procede de tournage en porte a faux, support de porte-outil et porte-outil

Country Status (2)

Country Link
EP (1) EP0210235A1 (fr)
WO (1) WO1986004293A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2658749A1 (fr) * 1990-02-28 1991-08-30 Delom Louis Tour a bois a table pour tournage en l'air.
EP0810916A4 (fr) * 1995-02-22 2000-08-09 Robert John Caddaye Tours
WO2000054930A3 (fr) * 1999-03-15 2001-03-29 Boehringer Werkzeugmaschinen Machine-outil
WO2000054929A3 (fr) * 1999-03-15 2001-04-26 Boehringer Werkzeugmaschinen Machine-outil
CN103640065A (zh) * 2013-12-19 2014-03-19 扬州海威机械制造有限公司 一种木工车床
US20190217398A1 (en) * 2018-01-12 2019-07-18 Joseph B. Glassford Lathe toolrest

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133357A (en) * 1977-07-15 1979-01-09 Emerson Electric Co. Hand tool rest for forming curved surfaces

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133357A (en) * 1977-07-15 1979-01-09 Emerson Electric Co. Hand tool rest for forming curved surfaces

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2658749A1 (fr) * 1990-02-28 1991-08-30 Delom Louis Tour a bois a table pour tournage en l'air.
EP0810916A4 (fr) * 1995-02-22 2000-08-09 Robert John Caddaye Tours
WO2000054930A3 (fr) * 1999-03-15 2001-03-29 Boehringer Werkzeugmaschinen Machine-outil
WO2000054929A3 (fr) * 1999-03-15 2001-04-26 Boehringer Werkzeugmaschinen Machine-outil
US6732618B1 (en) 1999-03-15 2004-05-11 Boehringer Werkzeugmaschinen Gmbh Machine tool
CN103640065A (zh) * 2013-12-19 2014-03-19 扬州海威机械制造有限公司 一种木工车床
CN103640065B (zh) * 2013-12-19 2015-06-03 扬州海威机械制造有限公司 一种木工车床
US20190217398A1 (en) * 2018-01-12 2019-07-18 Joseph B. Glassford Lathe toolrest

Also Published As

Publication number Publication date
EP0210235A1 (fr) 1987-02-04

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