GB1302351A - - Google Patents

Info

Publication number
GB1302351A
GB1302351A GB123070A GB123070A GB1302351A GB 1302351 A GB1302351 A GB 1302351A GB 123070 A GB123070 A GB 123070A GB 123070 A GB123070 A GB 123070A GB 1302351 A GB1302351 A GB 1302351A
Authority
GB
United Kingdom
Prior art keywords
lead
heads
screws
machine tool
piston
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
GB123070A
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 filed Critical
Publication of GB1302351A publication Critical patent/GB1302351A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/001—Arrangements compensating weight or flexion on parts of the machine
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/91—Machine frame
    • Y10T408/92—Machine frame with counterweight mechanism
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/309576—Machine frame
    • Y10T409/309744—Machine frame including means to compensate for deformation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/141—With means to monitor and control operation [e.g., self-regulating means]
    • Y10T83/148—Including means to correct the sensed operation

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Units (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

1302351 Load compensating; grinding H A WALDRICH GmbH 9 Jan 1970 [11 Jan 1969] 1230/70 Headings B3B B3C B3D B3K and B3L A machine tool, e.g. a double column machine tool having a machine tool head or heads displaceable on a transverse bearer adjustable in height by vertical lead-screws mounted along the columns, has a tensioning mechanism arranged to subject the lead screws to a load additional to that imposed thereon by the weight of the transverse bearer and the tool head or heads and adjustable to maintain a constant resultant loading of lead-screw regardless of the disposition of the said head or heads. In a single column machine tool in which the tool head or heads move along a cantilever transverse bearer, a tie-rod is used to support the bending moment on the column and a tensioning mechanism controls the load in the tierod to compensate the bending moment as the tool head or heads move along the transverse bearer. In the double column embodiment described the top end of lead-screws 4 are driven by worm drives 7 and the lower ends are supported in bearings 19 held in a sleeve 17 which is acted upon by a piston and rod 14, 16. A strain gauge arranged at the upper end of each lead-screw acts through a servo-control means upon a motor 20 of an hydraulic pump 21 to supply pressure to a cylinder 13 containing the piston and rod to initially pre-tension the lead-screws and subsequently to control the loading therein. In an alternative arrangement the piston and cylinder may be mounted horizontally and apply load via gearing. The tensioning mechanism may include a spring arrangement.
GB123070A 1969-01-11 1970-01-09 Expired GB1302351A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1901363A DE1901363C3 (en) 1969-01-11 1969-01-11 Arrangement for correcting the position of cross members on two-column machine tools

Publications (1)

Publication Number Publication Date
GB1302351A true GB1302351A (en) 1973-01-10

Family

ID=5722221

Family Applications (1)

Application Number Title Priority Date Filing Date
GB123070A Expired GB1302351A (en) 1969-01-11 1970-01-09

Country Status (4)

Country Link
US (1) US3730051A (en)
DE (1) DE1901363C3 (en)
FR (1) FR2028150A1 (en)
GB (1) GB1302351A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1165014B (en) * 1979-03-27 1987-04-22 Innocenti Santeustacchio Spa GEOMETRIC CONTROL SYSTEM, TO INCREASE THE ACCURACY OF A MACHINE TOOL, PARTICULARLY OF A LARGE DIMENSION MACHINE TOOL
US5297907A (en) * 1992-02-14 1994-03-29 Climax Portable Machine Tools, Inc. Portable machine tool
US5425607A (en) * 1994-07-13 1995-06-20 Thermwood Corporation Anti-whip device for machine drive screws
BR9915107A (en) * 1998-08-18 2001-07-24 Unova Ind Automation Sys Inc Error compensation system and mechanism of a machine tool
US6302315B1 (en) 2000-05-01 2001-10-16 General Tool Company Friction stir welding machine and method
JP4268842B2 (en) * 2003-07-15 2009-05-27 株式会社森精機製作所 Machine Tools
CN113588422B (en) * 2021-08-06 2023-03-21 东南大学 Testing device and testing method for applying horizontal load and vertical load on single column

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2171519A (en) * 1938-08-20 1939-09-05 Norton Co Hydraulically operated surfacegrinding machine
DE1073277B (en) * 1952-05-16 1960-01-14 Societe Nouvelle de Construction de Machines Outils et dOutillage Proce des CWB Paris Machine tool with a headstock that can be moved in the lateral guides of a boom
BE537162A (en) * 1954-04-07
CH321975A (en) * 1954-12-08 1957-05-31 Genevoise Instr Physique Machine tool
US2899869A (en) * 1955-09-02 1959-08-18 Suspension mechanism for machine tools
US3008381A (en) * 1958-01-02 1961-11-14 Method and means of machine support
US3027813A (en) * 1958-08-01 1962-04-03 Ingersoll Milling Machine Co Rail leveling system
US3233521A (en) * 1963-11-27 1966-02-08 Giddings & Lewis Rail leveling device
US3524248A (en) * 1967-09-13 1970-08-18 Heller Geb Gmbh Maschf Machine tool with automatic tool changing

Also Published As

Publication number Publication date
DE1901363B2 (en) 1973-05-10
FR2028150A1 (en) 1970-10-09
DE1901363A1 (en) 1970-09-03
DE1901363C3 (en) 1973-11-22
US3730051A (en) 1973-05-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee