FR2350170A1 - Numerical positioning of work-table on machine tool - uses pulses from motor counted off with reference to limit switch defining origin of coordinates - Google Patents
Numerical positioning of work-table on machine tool - uses pulses from motor counted off with reference to limit switch defining origin of coordinatesInfo
- Publication number
- FR2350170A1 FR2350170A1 FR7613693A FR7613693A FR2350170A1 FR 2350170 A1 FR2350170 A1 FR 2350170A1 FR 7613693 A FR7613693 A FR 7613693A FR 7613693 A FR7613693 A FR 7613693A FR 2350170 A1 FR2350170 A1 FR 2350170A1
- Authority
- FR
- France
- Prior art keywords
- motor
- coordinates
- pulses
- limit switch
- work
- 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.)
- Withdrawn
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
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/20—Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece
- B23Q15/22—Control or regulation of position of tool or workpiece
- B23Q15/24—Control or regulation of position of tool or workpiece of linear position
-
- 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
- G05B19/19—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 positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
- G05B19/40—Open loop systems, e.g. using stepping motor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Human Computer Interaction (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Numerical Control (AREA)
Abstract
The numerical control positioning system consists of a keyboard connected to the control unit. A clock unit emits pulses through two AND-gates and a pulse counter to a binary encoder. The exits from the encoder are taken via amplifiers to the windings of the motor which turns the leadscrew controlling the position of the worktable. The motor has a pole armature with 8 field poles wound in alternate senses. A limit switch connected to the NOR gate and the AND gate to the pulse counter defines the origin of the coordinates. To set the worktable the control unit sends out the required number of pulses from the clock and stops the motor when it has returned the same number of pulses.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7613693A FR2350170A1 (en) | 1976-05-07 | 1976-05-07 | Numerical positioning of work-table on machine tool - uses pulses from motor counted off with reference to limit switch defining origin of coordinates |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7613693A FR2350170A1 (en) | 1976-05-07 | 1976-05-07 | Numerical positioning of work-table on machine tool - uses pulses from motor counted off with reference to limit switch defining origin of coordinates |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2350170A1 true FR2350170A1 (en) | 1977-12-02 |
Family
ID=9172819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7613693A Withdrawn FR2350170A1 (en) | 1976-05-07 | 1976-05-07 | Numerical positioning of work-table on machine tool - uses pulses from motor counted off with reference to limit switch defining origin of coordinates |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2350170A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0051417A2 (en) * | 1980-10-30 | 1982-05-12 | Fanuc Ltd. | Method and apparatus for use in adjusting an installation position of a switch member in a numerical control system |
FR2586956A1 (en) * | 1985-09-12 | 1987-03-13 | Souriau & Cie | Method and device for regaining control of a machine, having at least two movable members, after having lost control of these members |
-
1976
- 1976-05-07 FR FR7613693A patent/FR2350170A1/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0051417A2 (en) * | 1980-10-30 | 1982-05-12 | Fanuc Ltd. | Method and apparatus for use in adjusting an installation position of a switch member in a numerical control system |
EP0051417A3 (en) * | 1980-10-30 | 1983-12-14 | Fanuc Ltd | Method and apparatus for adjusting an installation position of a switch member in a numerical control system |
FR2586956A1 (en) * | 1985-09-12 | 1987-03-13 | Souriau & Cie | Method and device for regaining control of a machine, having at least two movable members, after having lost control of these members |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |