GB1399273A - Positioning apparatus - Google Patents
Positioning apparatusInfo
- Publication number
- GB1399273A GB1399273A GB3032872A GB3032872A GB1399273A GB 1399273 A GB1399273 A GB 1399273A GB 3032872 A GB3032872 A GB 3032872A GB 3032872 A GB3032872 A GB 3032872A GB 1399273 A GB1399273 A GB 1399273A
- Authority
- GB
- United Kingdom
- Prior art keywords
- track
- along
- tracks
- spaced
- motors
- 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
-
- 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/001—Arrangements compensating weight or flexion on parts of the machine
- B23Q11/0028—Arrangements compensating weight or flexion on parts of the machine by actively reacting to a change of the configuration of the machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/02—Draughting machines or drawing devices for keeping parallelism
- B43L13/022—Draughting machines or drawing devices for keeping parallelism automatic
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Linear Motors (AREA)
- Control Of Position Or Direction (AREA)
Abstract
1399273 Slides and carriages XYNETICS Inc 28 June 1972 [19 July 1971] 30328/72 Heading B3B [Also in Divisions H2 and G1] Positioning apparatus, e.g. for positioning a cutting tool or stylus 22, comprises a plurality of spaced parallel tracks 10, a beam 18 transversely spanning the tracks, a plurality of first linear motors 14, 16 each of which has a stator extending along a corresponding one of the tracks and a moving part attached to the beam, means for energizing the first linear motors concurrently with periodic signals to move the beam along the tracks, a movable member 20 movable along the beam 18, a second linear motor having a stator extending along the beam and moving part attached to the movable member, and means for energizing the second linear motor with a periodic signal to move the member 20 along the beam 18, each moving part of the first and second linear motors being adjacent to but spaced from the corresponding stator and being constructed to create a driving reaction force to move the beam along the tracks and the member 20 along the beam when the motors are energized by the periodic signals. The linear motors may be fluid motors or induction or hysteresis motors, or as described, are reluctance linear motors (Figs. 2-4a, not shown) wherein, e.g. a track is formed of regularly spaced magnetic "teeth" spaced apart by air gaps, or by such gaps filled with a non-magnetic solid, e.g. plastics material. Spaced from the track is held the movable motor part, e.g. supporting one end of the beam 18, which comprises two sets of electromagnets having polepieces offset linearly relative to each other and which co-operate with the track to cause movement. Control signals are fed to the two sets of electromagnets in phased relationship, e.g. sine and cosine phased signals to cause movement. The distance the beam or head moves can be controlled by feeding a predetermined number of pulses which have a fixed relationship to the pitch of the magnetic "teeth" in the track. Alternatively magnetic pick-offs may be mounted on the moving part to produce pulses as it moves relative to the track. The moving part may be spaced from the track by an air bearing (Fig. 4a, not shown). In an alternative embodiment (Figs. 5-7, not shown) four tracks are provided along which the beam carrying the operating member is moved, each track having a drive means. During movement of the beam stresses are caused, and these are minimized by providing strain gauges at nodal points of zero stress (Fig. 8, not shown) which operate through a control servosystem (Fig. 9, not shown) to control the force applied by the driving means on each track. Alternatively, a laser beam, metal take, load measuring devices; or accelerometers, may be used to monitor the load and/or deflections along the beam. In a further embodiment (Figs. 10 and 11, not shown) the operating member is carried at the intersection of two beams that cross at right angles and are driven by a track and drive means at each end of the beams. Drive means in both orthogonal directions is provided at the intersection of the beams by means of tracks provided on each beam. The apparatus may be used for polar or spherical co-ordinates.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16359771A | 1971-07-19 | 1971-07-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1399273A true GB1399273A (en) | 1975-07-02 |
Family
ID=22590725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3032872A Expired GB1399273A (en) | 1971-07-19 | 1972-06-28 | Positioning apparatus |
Country Status (10)
Country | Link |
---|---|
JP (1) | JPS5518924B1 (en) |
AT (1) | AT334647B (en) |
BE (1) | BE786426A (en) |
CA (1) | CA959105A (en) |
CH (1) | CH567941A5 (en) |
DE (1) | DE2233231C3 (en) |
FR (1) | FR2146796A5 (en) |
GB (1) | GB1399273A (en) |
IL (1) | IL39942A (en) |
IT (1) | IT958613B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4277893A (en) | 1978-03-04 | 1981-07-14 | Christian Munther | Drawing instruments |
GB2136332A (en) * | 1983-01-21 | 1984-09-19 | Protocol Eng Ltd | Improvements in or Relating to Computer Controlled Tools for the Production of Graphic Material for Use in Colour Printing or Like Processes |
ES2191547A1 (en) * | 2000-12-15 | 2003-09-01 | I M Parpas S R L | Driving assembly for controllably driving a slide |
CN101666859B (en) * | 2009-10-13 | 2012-05-30 | 上海理工大学 | Drive feeding mechanism of dual-linear motor |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5047116A (en) * | 1973-08-31 | 1975-04-26 | ||
JPS5572893U (en) * | 1978-11-11 | 1980-05-20 | ||
JPS55176797U (en) * | 1979-06-05 | 1980-12-18 | ||
FR2458494A1 (en) * | 1979-06-07 | 1981-01-02 | Anfor | Positioning device for light objects esp. microfiches - uses two linear hysteresis motors with sequentially switched electro-magnets to provide x-y motion |
SU1023574A1 (en) * | 1980-04-19 | 1983-06-15 | Одесский ордена Трудового Красного Знамени политехнический институт | Electric drive |
FR2510838A1 (en) * | 1981-07-28 | 1983-02-04 | Od Polt Institut | Double-coordinate linear electric drive - has two=part moving core with ferromagnetic bridge and vertical slots for control windings |
JPS6021794A (en) * | 1983-07-19 | 1985-02-04 | ジューキ株式会社 | Automatic sewing machine |
JPS6313586U (en) * | 1986-07-08 | 1988-01-28 | ||
WO1998037624A2 (en) * | 1997-02-20 | 1998-08-27 | Lars Dreifke | Direct drive with internal sensors and a control device |
DE29706348U1 (en) * | 1997-04-10 | 1997-06-05 | Festo Kg, 73734 Esslingen | Device for evaluating positions of a position indicator |
DE102018209725A1 (en) * | 2018-06-15 | 2019-12-19 | Krones Ag | Method and device for load identification of a transport element of a long stator linear motor system |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH436751A (en) * | 1966-05-31 | 1967-05-31 | Contraves Ag | Coordinatograph |
US3376578A (en) * | 1966-05-31 | 1968-04-02 | Bruce A. Sawyer | Magnetic positioning device |
US3457482A (en) * | 1967-10-30 | 1969-07-22 | Bruce A Sawyer | Magnetic positioning device |
-
1972
- 1972-06-07 CA CA144,118A patent/CA959105A/en not_active Expired
- 1972-06-23 IT IT51125/72A patent/IT958613B/en active
- 1972-06-28 GB GB3032872A patent/GB1399273A/en not_active Expired
- 1972-07-03 DE DE2233231A patent/DE2233231C3/en not_active Expired
- 1972-07-17 CH CH1076772A patent/CH567941A5/xx not_active IP Right Cessation
- 1972-07-18 FR FR7225817A patent/FR2146796A5/fr not_active Expired
- 1972-07-18 BE BE786426A patent/BE786426A/en unknown
- 1972-07-18 AT AT619672A patent/AT334647B/en not_active IP Right Cessation
- 1972-07-18 JP JP7195172A patent/JPS5518924B1/ja active Pending
- 1972-07-19 IL IL39942A patent/IL39942A/en unknown
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4277893A (en) | 1978-03-04 | 1981-07-14 | Christian Munther | Drawing instruments |
GB2136332A (en) * | 1983-01-21 | 1984-09-19 | Protocol Eng Ltd | Improvements in or Relating to Computer Controlled Tools for the Production of Graphic Material for Use in Colour Printing or Like Processes |
ES2191547A1 (en) * | 2000-12-15 | 2003-09-01 | I M Parpas S R L | Driving assembly for controllably driving a slide |
CN101666859B (en) * | 2009-10-13 | 2012-05-30 | 上海理工大学 | Drive feeding mechanism of dual-linear motor |
Also Published As
Publication number | Publication date |
---|---|
JPS5518924B1 (en) | 1980-05-22 |
DE2233231B2 (en) | 1980-09-18 |
CA959105A (en) | 1974-12-10 |
IL39942A (en) | 1974-12-31 |
IL39942A0 (en) | 1972-09-28 |
IT958613B (en) | 1973-10-30 |
AT334647B (en) | 1976-01-25 |
CH567941A5 (en) | 1975-10-15 |
FR2146796A5 (en) | 1973-03-02 |
DE2233231A1 (en) | 1973-02-01 |
DE2233231C3 (en) | 1981-06-19 |
ATA619672A (en) | 1976-05-15 |
BE786426A (en) | 1972-11-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PE20 | Patent expired after termination of 20 years |