GB1275061A - Improvements in or relating to a rotatable tool head for a machine tool - Google Patents

Improvements in or relating to a rotatable tool head for a machine tool

Info

Publication number
GB1275061A
GB1275061A GB3015668A GB3015668A GB1275061A GB 1275061 A GB1275061 A GB 1275061A GB 3015668 A GB3015668 A GB 3015668A GB 3015668 A GB3015668 A GB 3015668A GB 1275061 A GB1275061 A GB 1275061A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
head
holder
lever
tool
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.)
Expired
Application number
GB3015668A
Inventor
Walter Darby
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.)
STUART DAVIS MACHINES Ltd
Original Assignee
STUART DAVIS MACHINES Ltd
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 STUART DAVIS MACHINES Ltd filed Critical STUART DAVIS MACHINES Ltd
Priority to GB3015668A priority Critical patent/GB1275061A/en
Publication of GB1275061A publication Critical patent/GB1275061A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
    • B23B29/03—Boring heads
    • B23B29/034—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings
    • B23B29/03432—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable during manufacturing
    • B23B29/03457—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable during manufacturing by pivoting the tool carriers or by elastic deformation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
    • B23Q1/34—Relative movement obtained by use of deformable elements, e.g. piezoelectric, magnetostrictive, elastic or thermally-dilatable elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)

Abstract

1275061 Boring heads STUART DAVIS MACHINES Ltd 25 June 1969 [25 June 1968] 30156/68 Heading B3C A rotatable tool head, e.g. a boring head, comprises a stiff diaphragm 25, a cutting tool holder 27 secured to a face of the diaphragm and means for applying a force to the diaphragm to distort the face to tilt the holder and thus adjust the position of a tool when held in the holder. In one embodiment (Fig. 1) an axially movable actuator 13 carries a part 17 having a tip 20 which bears on a lever 21 engaging a stud 26 at the centre of the diaphragm, which centre is eccentric relative to the axis of the head. Axial movement of the actuator 13, to the left in the Figure, thus causes the diaphragm to assume a conical form. The holder 27 is secured to the front face of the diaphragm only on one side of a diameter of the diaphragm, thus leaving a slit 28 between that face and the holder, whereby distortion of the diaphragm causes the holder axis to assume an inclination relative to the axis of the head, thereby adjusting the disposition of a tool 16 relative to the head. A precompressed spring 32 prevents backlash between the lever 21 and part 17. In another embodiment (Fig. 3), the tip 20 bears on a first lever 36 which transmits force to a second lever 21 through a projection 37 on the latter. In another embodiment (Fig. 5), a closed cavity between the diaphragm and a rear plate 12 of the head is filled with a suitable hydraulic liquid. Axial movement of a member 42 under the action of actuator 13 causes force to be transmitted by the liquid to the diaphragm. In a modification of the Fig. 3 embodiment, levers 21, 36 have intermeshing gear teeth. The head may be a facing head. Copending Application No. 30155/68 is referred to.
GB3015668A 1968-06-25 1968-06-25 Improvements in or relating to a rotatable tool head for a machine tool Expired GB1275061A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3015668A GB1275061A (en) 1968-06-25 1968-06-25 Improvements in or relating to a rotatable tool head for a machine tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3015668A GB1275061A (en) 1968-06-25 1968-06-25 Improvements in or relating to a rotatable tool head for a machine tool

Publications (1)

Publication Number Publication Date
GB1275061A true GB1275061A (en) 1972-05-24

Family

ID=10303198

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3015668A Expired GB1275061A (en) 1968-06-25 1968-06-25 Improvements in or relating to a rotatable tool head for a machine tool

Country Status (1)

Country Link
GB (1) GB1275061A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189739A2 (en) * 1984-12-31 1986-08-06 GTE Valenite Corporation Cutting tip adjusting device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189739A2 (en) * 1984-12-31 1986-08-06 GTE Valenite Corporation Cutting tip adjusting device
EP0189739A3 (en) * 1984-12-31 1987-09-23 Gte Valeron Corporation Cutting tip adjusting device

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees