GB1233135A - - Google Patents
Info
- Publication number
- GB1233135A GB1233135A GB1233135DA GB1233135A GB 1233135 A GB1233135 A GB 1233135A GB 1233135D A GB1233135D A GB 1233135DA GB 1233135 A GB1233135 A GB 1233135A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gate
- tracer
- fed
- stores
- machine
- 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
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
- G05B19/42—Recording and playback systems, i.e. in which the programme is recorded from a cycle of operations, e.g. the cycle of operations being manually controlled, after which this record is played back on the same machine
- G05B19/4202—Recording and playback systems, i.e. in which the programme is recorded from a cycle of operations, e.g. the cycle of operations being manually controlled, after which this record is played back on the same machine preparation of the programme medium using a drawing, a model
- G05B19/4207—Recording and playback systems, i.e. in which the programme is recorded from a cycle of operations, e.g. the cycle of operations being manually controlled, after which this record is played back on the same machine preparation of the programme medium using a drawing, a model in which a model is traced or scanned and corresponding data recorded
-
- 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
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/34—Director, elements to supervisory
- G05B2219/34101—Data compression, look ahead segment calculation, max segment lenght
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Numerical Control (AREA)
- Machine Tool Copy Controls (AREA)
Abstract
1,233,135. Programmed control of machine tools. SIEMENS A. G. March 14, 1969, [March 15, 1968], No.13642/69. Heading G3N. A storage medium storing data for the numerical control of a machine is prepared by determining and storing selected co-ordinates of prints in a model for which the shortest line between points is within a predetermined distance of the actual contour between the points. As shown, a tracer T is mounted on a slide system, (not shown), carrying co-ordinate digital position transmitters G, defining the position of the tracer, the outputs of which are fed to a differential gate DG through an evaluator JA. The tracer moves relative to its suspension and analogue displacement signals are fed through an analogue-to-digital converter ADW to the gate DG. The inputs to the gate DG are summated, with the correct sign, in the gate. The outputs of the gate are used (1) in a circuit PS to derive the square of a pseudo-chord, defined as the sum of the squares of the distance between the last stored point on the curve and the present position of the tracer and (2) in a circuit Kto derive the square of length of the corresponding arc of the curve. The derived squared values are compared in a comparator V and at equality the comparator issues a storage command to stores Sp1 to Sp n for position values from the gate DG. When the stores are full, tracing is interrupted and the contents of the stores are fed to a punched tape machine L. The resulting punched tape is used in a numerically controlled machine tool to reproduce a model being scanned by the tracer.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681638139 DE1638139B2 (en) | 1968-03-15 | 1968-03-15 | METHOD FOR DETERMINING THE BASE POINT COORDINATES OF A POLYGON TRAIN REPLACING A SCANNED CONTOUR |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1233135A true GB1233135A (en) | 1971-05-26 |
Family
ID=5683873
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1233135D Expired GB1233135A (en) | 1968-03-15 | 1969-03-14 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1233135A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2514530A1 (en) * | 1981-10-09 | 1983-04-15 | Lemoine Cie Ets | METHOD FOR ENTERING DATA REPRESENTATIVE OF THE FORM OF AN OBJECT |
EP0087946A2 (en) * | 1982-02-27 | 1983-09-07 | Fanuc Ltd. | Method and apparatus for creating numerical control data |
EP0314795A1 (en) * | 1987-03-03 | 1989-05-10 | Fanuc Ltd. | Digitizing method |
CN104317247A (en) * | 2014-10-13 | 2015-01-28 | 华中科技大学 | Control method for common-track motion of two working points, machining method and device |
-
1969
- 1969-03-14 GB GB1233135D patent/GB1233135A/en not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2514530A1 (en) * | 1981-10-09 | 1983-04-15 | Lemoine Cie Ets | METHOD FOR ENTERING DATA REPRESENTATIVE OF THE FORM OF AN OBJECT |
EP0077243A1 (en) * | 1981-10-09 | 1983-04-20 | Etablissements LEMOINE & Cie | Method to record data representative of the form of an object |
US4542328A (en) * | 1981-10-09 | 1985-09-17 | Etablissements Lemoin & Cie | Process for acquiring data representative of the shape of an object |
EP0087946A2 (en) * | 1982-02-27 | 1983-09-07 | Fanuc Ltd. | Method and apparatus for creating numerical control data |
EP0087946A3 (en) * | 1982-02-27 | 1983-11-16 | Fanuc Ltd. | Method and apparatus for creating numerical control data |
US4627003A (en) * | 1982-02-27 | 1986-12-02 | Fanuc Ltd | Method and apparatus for creating numerical control data |
EP0314795A1 (en) * | 1987-03-03 | 1989-05-10 | Fanuc Ltd. | Digitizing method |
EP0314795A4 (en) * | 1987-03-03 | 1991-07-31 | Fanuc Ltd | Digitizing method |
CN104317247A (en) * | 2014-10-13 | 2015-01-28 | 华中科技大学 | Control method for common-track motion of two working points, machining method and device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4296473A (en) | Profile control system | |
GB1244624A (en) | On-machine inspection system | |
GB1328536A (en) | Method and apparatus for preparing numerical control tapes | |
GB1498711A (en) | Tool gauging apparatus for machine tools | |
US3430035A (en) | Machine tool control with cutter diameter compensation | |
GB1258343A (en) | ||
GB1353479A (en) | Function generating systems | |
GB1233135A (en) | ||
GB1079973A (en) | Apparatus for gage signal simulation in automatic control systems | |
GB1184659A (en) | Machine Tool Control System. | |
GB1069384A (en) | Method for the automatic digital positioning of objects, particularly machine parts,or for measuring their position using binary code scales | |
GB1049795A (en) | Logic network for numerically-controlled machine tools or the like | |
EP0156918B1 (en) | Method of automatically adjusting tracer head | |
GB1029896A (en) | Apparatus for process control computer | |
GB1370955A (en) | High speed digital tracking system | |
GB1211418A (en) | An automatic tool position compensating system for a numerically controlled machine tool | |
GB1427757A (en) | Control of machine tools | |
GB1345129A (en) | Tool size compensation for numerical control machine | |
GB1033101A (en) | Improvements in or relating to methods and devices for generating a curve | |
GB1187378A (en) | Improvements in Methods of Generating a Curve, Applicable to Tracing Machines or Machine Tools | |
GB1274539A (en) | Numerically controlled machine | |
GB956871A (en) | A system for numerical machine tool control | |
GB1266541A (en) | ||
GB1246743A (en) | Electronic control system | |
GB1173396A (en) | Arrangements for Calculating Datum Points of a Curve defined by a Model |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |