GB1424767A - Method of programme control of metalworking -machine tool and system for effecting same - Google Patents

Method of programme control of metalworking -machine tool and system for effecting same

Info

Publication number
GB1424767A
GB1424767A GB1486673A GB1486673A GB1424767A GB 1424767 A GB1424767 A GB 1424767A GB 1486673 A GB1486673 A GB 1486673A GB 1486673 A GB1486673 A GB 1486673A GB 1424767 A GB1424767 A GB 1424767A
Authority
GB
United Kingdom
Prior art keywords
unit
arc
trial
cutter
spherical
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
GB1486673A
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.)
OSOBOE K BJURO STANSKOSTROENIA
Original Assignee
OSOBOE K BJURO STANSKOSTROENIA
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 OSOBOE K BJURO STANSKOSTROENIA filed Critical OSOBOE K BJURO STANSKOSTROENIA
Priority to GB1486673A priority Critical patent/GB1424767A/en
Publication of GB1424767A publication Critical patent/GB1424767A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/41—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by interpolation, e.g. the computation of intermediate points between programmed end points to define the path to be followed and the rate of travel along that path
    • G05B19/4103—Digital interpolation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Numerical Control (AREA)

Abstract

1424767 Automatic control of metal-working machines OSOBOE KONSTRUKTORSKOE BJURO STANSKOSTROENIA 28 March 1973 14866/73 Heading G3N The program controlled movement of a spherical ended cutter is interpolated by considering the surface to be cut as being formed of surfaces of bodies of rotation conjugate with flat portions located orbitarily in space. As shown, a perforated tape 2 is read by a reader 1 to derive information relating to the path to be travelled by a spherical cutter in working surfaces expressed as planes perpendicular to the ones of revolution of bodies of rotation and orbitarily located congruent flat portions. For arcs the co-ordinates of the beginning and end with respect to the centre of the arc are given together with the cosines of the angles between machine ones and the vector perpendicular to the plane of the arc. The output of the reader 1 is fed through an information introducing unit 3 to a correction unit 4, connected to a control panel 5, the output of which is fed to an interpolator 6, supplying positioning signals to a unit 7 controlling the drives, (not shown), of the associated milling machinery. The interpolator 6 comprises a memory 8 an arithmetic unit 9 and a control unit 10 which are interconnected to perform for the interpolation of an arc trial steps from the evaluation of which is determined the trial step to be used as the actual interpolating step. The trial steps are effected in a predetermined sequence depending on the serial number of the octant in which the arc being reproduced is located as well as the direction of tracing of this arc. The unit 4 includes a memory unit 16 an arithmetic unit 17 and a control unit 18 interconnected to modify the programmed geometric parameters for the dimensions of the actual dimensions of the spherical cutter being used in the milling operation.
GB1486673A 1973-03-28 1973-03-28 Method of programme control of metalworking -machine tool and system for effecting same Expired GB1424767A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1486673A GB1424767A (en) 1973-03-28 1973-03-28 Method of programme control of metalworking -machine tool and system for effecting same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1486673A GB1424767A (en) 1973-03-28 1973-03-28 Method of programme control of metalworking -machine tool and system for effecting same

Publications (1)

Publication Number Publication Date
GB1424767A true GB1424767A (en) 1976-02-11

Family

ID=10048891

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1486673A Expired GB1424767A (en) 1973-03-28 1973-03-28 Method of programme control of metalworking -machine tool and system for effecting same

Country Status (1)

Country Link
GB (1) GB1424767A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2513161A1 (en) * 1981-09-21 1983-03-25 Inoue Japax Res MACHINING A THREE-DIMENSIONAL CONTOUR IN A WORKPIECE WITH A NUMERICALLY CONTROLLED MACHINE
EP0406784A2 (en) * 1989-07-05 1991-01-09 Advanced Data Processing Adp S.R.L. Electronic polynomial interpolation device for numeric controls of machine tools, particularly milling machines for the machining of dies, and machine comprising said device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2513161A1 (en) * 1981-09-21 1983-03-25 Inoue Japax Res MACHINING A THREE-DIMENSIONAL CONTOUR IN A WORKPIECE WITH A NUMERICALLY CONTROLLED MACHINE
US4558977A (en) * 1981-09-21 1985-12-17 Inoue-Japax Research Incorporated NC Method and system for machining a 3D contour in a workpiece
EP0406784A2 (en) * 1989-07-05 1991-01-09 Advanced Data Processing Adp S.R.L. Electronic polynomial interpolation device for numeric controls of machine tools, particularly milling machines for the machining of dies, and machine comprising said device
EP0406784A3 (en) * 1989-07-05 1991-02-20 Advanced Data Processing Adp S.R.L. Electronic polynomial interpolation device for numeric controls of machine tools, particularly milling machines for the machining of dies, and machine comprising said device
US5285394A (en) * 1989-07-05 1994-02-08 Advanced Data Processing Adp S.R.L. Electronic polynomial interpolation device for numeric controls of machine tools, particularly milling machines for the machining of dies, and machine comprising said device

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Legal Events

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