GB814282A - Improvements relating to automatic machine tools - Google Patents
Improvements relating to automatic machine toolsInfo
- Publication number
- GB814282A GB814282A GB2301054A GB2301054A GB814282A GB 814282 A GB814282 A GB 814282A GB 2301054 A GB2301054 A GB 2301054A GB 2301054 A GB2301054 A GB 2301054A GB 814282 A GB814282 A GB 814282A
- Authority
- GB
- United Kingdom
- Prior art keywords
- record
- strain
- tool
- aug
- bridge circuit
- 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
- 238000003754 machining Methods 0.000 abstract 1
- 238000003801 milling Methods 0.000 abstract 1
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
- G05B19/416—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 control of velocity, acceleration or deceleration
- G05B19/4163—Adaptive control of feed or cutting velocity
Landscapes
- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Automatic Control Of Machine Tools (AREA)
- Numerical Control (AREA)
Abstract
814,282. Automatic control systems for machine tools. ELECTRIC & MUSICAL INDUSTRIES Ltd. Aug. 8, 1955 [Aug. 7, 1954], No. 23010/54. Class 38 (4). [Also in Groups XXII and XXXVIII] In an automatic machining process controlled by a record, the rate at which the record is fed through to the machine is governed by the strain on the cutting tool as measured by a strain gauge resistor associated with the tool, and forming part of a bridge circuit whose output controls the speed of the motor driving the record. As shown (Fig. 1) the record in a control box 6 supplies the required instantaneous R, 6 values of a workpiece mounted on a movable table 1 relative to a fixed milling cutter mounted on a head 12. A resistance strain gauge 17 is attached to the head 12 and forms one arm of an A.C. bridge circuit whose output, amplified at 26, controls the gain of an amplifier 15 feeding the servomotor 14 driving the record in the control box 6 to maintain the strain in the tool at a constant value. Two strain gauges may be employed to measure the strain in perpendicular directions. Specification 796,994, [Group XXXVI], is referred to.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB814282A true GB814282A (en) | 1959-06-03 |
Family
ID=1737368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2301054A Expired GB814282A (en) | 1954-08-07 | Improvements relating to automatic machine tools |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB814282A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2388337A1 (en) * | 1977-04-22 | 1978-11-17 | Gerber Garment Technology Inc | CLOSED CIRCUIT CONTROL SYSTEM OF AN AUTOMATIC CUTTING MACHINE AND PROCESS FOR CUTTING A MATERIAL |
-
1954
- 1954-08-07 GB GB2301054A patent/GB814282A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2388337A1 (en) * | 1977-04-22 | 1978-11-17 | Gerber Garment Technology Inc | CLOSED CIRCUIT CONTROL SYSTEM OF AN AUTOMATIC CUTTING MACHINE AND PROCESS FOR CUTTING A MATERIAL |
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