GB1359073A - Method and apparatus for numerical conttrol of a work piece - Google Patents

Method and apparatus for numerical conttrol of a work piece

Info

Publication number
GB1359073A
GB1359073A GB3789972A GB3789972A GB1359073A GB 1359073 A GB1359073 A GB 1359073A GB 3789972 A GB3789972 A GB 3789972A GB 3789972 A GB3789972 A GB 3789972A GB 1359073 A GB1359073 A GB 1359073A
Authority
GB
United Kingdom
Prior art keywords
control
reader
tool
tape
store
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
GB3789972A
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.)
Rohr Inc
Original Assignee
Rohr Industries Inc
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 Rohr Industries Inc filed Critical Rohr Industries Inc
Priority to GB3789972A priority Critical patent/GB1359073A/en
Publication of GB1359073A publication Critical patent/GB1359073A/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
    • G05B19/408—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 data handling or data format, e.g. reading, buffering or conversion of data

Abstract

1359073 Automatic electric control of machining ROHR INDUSTRIES Inc 14 Aug 1972 37899/72 Heading G3N A numerically controlled machine tool is responsive to a programme bearing sequential segments representative of operations to be performed related to selectable full and undersize cutters. As shown, Fig. 4, a programme for a numerically-controlled machine tool is prepared in dependence on a family of cutter sizes ranging from T-O1 standard size to T-O5 which is 40 thousandth of an inch undersize due to successive re-grinding. The programme is prepared in segments, 34, 33 each of which represents a machining operation for which a tool has to be selected, and comprises separate machining instructions for an operation for each cutter of a family. A machine tool, not shown, is actuated by signals from a control 21, Fig. 5, responsive to a tape reader 24 which is stepped by signals from a control 75. The selection of a cutter size for an operation is made by an operator actuating a switch bank 30 which sets a store 45, having indicator lights 29s, and a register 55. The contents of store 45 are compared in a device 65 with the contents of a store 85, having indicator lights 29p, which is responsive to signals from the controller 21 as the control 75 stops the tape in the reader 24. The reader control 75 is stopped when coincidence is established. The controller 21 carries out the machining operation at the completion of which the selected tool store is cleared and the start of a subsequent operation inhibited until a new tool selection is made. The register 55 clamps reader control 75 until a tool selection has been made to prevent synchronous operation of the reader, a switch 31 is closed to by-pass the register when using an uncoded tape. The movement of the tape is initiated by actuating a scan-switch 32 after the selection of a toolcode on switch-bank 30. The circuit is arranged to ignore codes in a completed operation by recognition of the T-01 code of the new operation.
GB3789972A 1972-08-14 1972-08-14 Method and apparatus for numerical conttrol of a work piece Expired GB1359073A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3789972A GB1359073A (en) 1972-08-14 1972-08-14 Method and apparatus for numerical conttrol of a work piece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3789972A GB1359073A (en) 1972-08-14 1972-08-14 Method and apparatus for numerical conttrol of a work piece

Publications (1)

Publication Number Publication Date
GB1359073A true GB1359073A (en) 1974-07-10

Family

ID=10399796

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3789972A Expired GB1359073A (en) 1972-08-14 1972-08-14 Method and apparatus for numerical conttrol of a work piece

Country Status (1)

Country Link
GB (1) GB1359073A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0088804A1 (en) * 1981-09-22 1983-09-21 Fanuc Ltd. Numerical control device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0088804A1 (en) * 1981-09-22 1983-09-21 Fanuc Ltd. Numerical control device
EP0088804A4 (en) * 1981-09-22 1984-06-13 Fanuc Ltd Numerical control device.
US4628442A (en) * 1981-09-22 1986-12-09 Fanuc Ltd Centralized peripheral interface with a numerical control unit

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Legal Events

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