WO1991003048A1 - Verfahren zum justieren einer positioniervorrichtung - Google Patents
Verfahren zum justieren einer positioniervorrichtung Download PDFInfo
- Publication number
- WO1991003048A1 WO1991003048A1 PCT/EP1990/001188 EP9001188W WO9103048A1 WO 1991003048 A1 WO1991003048 A1 WO 1991003048A1 EP 9001188 W EP9001188 W EP 9001188W WO 9103048 A1 WO9103048 A1 WO 9103048A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- output
- unit
- input
- counter
- mark
- Prior art date
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
- G05B19/401—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 arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
- G05B19/4015—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 arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes going to a reference at the beginning of machine cycle, e.g. for calibration
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
- G05D3/14—Control of position or direction using feedback using an analogue comparing device
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/22—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from random access magazine of disc records
- G11B17/228—Control systems for magazines
Definitions
- the invention relates to a method for adjusting a positioning device, in which a unit is positioned by means of a first scanning device that scans marks, and a circuit arrangement for carrying out the method.
- Such positioning devices are used, for example, in turntables with magazines - so-called magazine players or record changers - and in music boxes in order to be able to position the playback part in front of the magazine in which the individual records are stored.
- a plate changer is known from GB-A 2 162 991, in which a bar with slots is provided in front of the magazine, which serve as marks for a light barrier.
- the bar with the slots runs between the optical transmitter and the optical receiver of the light barrier, which is attached to the playback part.
- the light barrier detects the individual slots in the bar in order to correctly position the playback part in front of a disc.
- the voltage at the output of the photoreceiver e-twa has a sinusoidal shape, as shown in FIG. 1.
- the voltage at the output of the photoreceiver is converted into a pulse, the rising or falling edge of which indicates that the playback part is positioned in front of a disc.
- the optical scanning device which scans the marks, must be precisely adjusted by hand during production.
- the unit is first manually e.g. precisely positioned by means of a teaching and held in this position.
- the P h ot oemp catchers and / or the r op tic end are also adjusted by hand so that the output signal of the photoreceiver is maximized. This time-consuming adjustment work requires great care.
- the invention solves this problem in that the unit is brought into a defined first position by hand in a first method step, that the unit is automatically moved to a second position in a second method step until the output signal of the sensor of the first scanning device becomes maximum, that the deviation from the first position to the second position is stored as an offset, that in operation at each Po sitioniervorgang the unit is positioned in a first step until the output signal of the sensor is maximum, and that the unit is moved in a second step by the stored offset in the final position.
- a second solution to this problem provides that the width of a pulse at the output of the pulse shaper is determined in a first process step, that the unit is manually positioned in a first defined position in a second process step and that the unit is automatically positioned in a second position that is offset by half the width of a mark from the first layer.
- Figure 1 shows the output voltage of a photo receiver
- Figure 2 shows an arrangement for performing the method according to claim 1
- Figure 3 shows an arrangement for performing the method according to claim 2.
- Figure 2 shows the magazine MZ of a plate changer with several compartments in which the individual plates are located.
- a mark MR is arranged on each compartment.
- An optical transmitter S which is attached to the playback part AS of the disc changer, emits light onto the front of the magazine MZ. If the playback part AS, which is by means of a spindle SP, which is driven by a motor M, is driven past the front of the magazine MZ, is correctly positioned, the light emitted by the optical transmitter S is reflected by the brands MR onto a photo receiver E, which, like the optical transmitter S, is also on the playback part is arranged.
- the MR brand assigned to this compartment reflects the light onto the photoreceiver E.
- the motor M is then switched off so that the Playback part AS is in the removal position b Remains.
- the photoreceiver E is connected to the input E1 of a control circuit ST.
- a control circuit ST On the axis of the motor M or on the spindle SP there is a disk SC with marks which are scanned by a scanning device AV.
- the output of the scanning device AV is connected to the counting input of a counter Z, the output of which is connected to an input E2 and its counter Enable input EN is connected to an output A1 of the control circuit ST, and an output A2 of the control circuit ST is connected to the motor M.
- the playback part AS is moved into the exact position for removing a disk from the magazine MZ, for example by means of a teaching.
- the control circuit ST then brings the playback part AS into a position where the output signal of the photoreceiver E becomes maximum.
- the scanning device AV which can also be designed, for example, as an optical scanning device, and the counter Z, the revolutions of the motor M or the spindle SP are from the first manually set position to the second position when the output signal of the photoreceiver E maximum is counted and stored in a memory in the control circuit ST as an offset.
- the direction of rotation of the motor M is also recorded in the memory.
- the optical transmitter S and de r Photo receivers E therefore no longer need to be adjusted.
- the plate changer is now ready for use.
- the output signal of the photo receiver E is converted into a pulse by means of a pulse shaper and to determine its width by means of the counter Z.
- the counter Z counts the revolutions of the motor M and the spindle SP from the rising to the falling edge of the pulse.
- the counter reading which corresponds to the pulse width, is divided by two in the control circuit by means of a divider.
- the motor M is rotated further or backward by the control circuit ST from the rising edge or the falling edge of the pulse to the number of revolutions resulting from the division by two.
- the playback part AS is positioned exactly at the point where the output signal of the photoreceiver E becomes maximum.
- the playback part AS is positioned in two steps. In the first step, the playback part AS is positioned so that the output signal of the photo receiver E becomes maximum. In the second step, the playback part AS is moved further by the stored offset, which corresponds to the deviation from the exact position and the position where the output signal of the photoreceiver E becomes maximum.
- the playback part AS is positioned exactly in this way without the optical transmitter S and the photo receiver E having to be precisely adjusted during production.
- the playback part is then positioned until the pulse shaper emits a pulse to the control circuit ST.
- the control circuit recognizes that it still drives the motor M or the spindle SP by the number of revolutions stored in the memory must turn to the left or right to position the playback part AS exactly in the final position.
- the output of the photoreceiver E is connected to the input of a pulse shaper I, the output of which is connected to the input EN of a counter Z.
- the marks on a disc SC, which sits on the motor axis or the spindle SP, are scanned, as in the arrangement from FIG. 2, by a scanning device AV, the output of which is connected to the counting input of the counter Z.
- the output of the counter Z is connected to the input of a divider TL, the output of which is connected to a control circuit ST.
- the output of the control circuit ST is connected to the motor M.
- the control circuit ST causes the playback part AS to be moved over one of the marks MR by its width, for example.
- the counter Z counts the revolutions of the motor or the spindle during the pulse.
- the counter reading is therefore proportional to the pulse width and thus also to the width of a mark MR.
- the meter reading is halved in the divider TL.
- the playback part AS is now brought into a defined first position by hand.
- the control circuit ST automatically moves it by half the width of the mark MR from the first defined position to a second position. Now only the optical transmitter S and the photoreceiver E need to be adjusted so that an edge just appears at the output of the pulse shaper. Because it is much easier to go to the zero-to-one transition than to the maximum of the output signal Adjusting the photoreceiver E, the adjustment work can be carried out faster and more precisely.
- the invention is generally suitable for devices for positioning a unit.
- the scanning of the marks can e.g. optically, inductively, capacitively or mechanically.
- the invention is particularly suitable for plate changers.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Human Computer Interaction (AREA)
- Manufacturing & Machinery (AREA)
- Automatic Disk Changers (AREA)
- Control Of Position Or Direction (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI920768A FI920768A0 (fi) | 1989-08-24 | 1992-02-21 | Foerfarande foer justering av en positionsanordning. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP3927890.5 | 1989-08-24 | ||
DE3927890A DE3927890A1 (de) | 1989-08-24 | 1989-08-24 | Verfahren zum justieren einer positioniervorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991003048A1 true WO1991003048A1 (de) | 1991-03-07 |
Family
ID=6387729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1990/001188 WO1991003048A1 (de) | 1989-08-24 | 1990-07-20 | Verfahren zum justieren einer positioniervorrichtung |
Country Status (10)
Country | Link |
---|---|
US (1) | US5248888A (de) |
EP (1) | EP0489026A1 (de) |
JP (1) | JPH04507473A (de) |
CN (1) | CN1049738A (de) |
AU (1) | AU5960490A (de) |
DD (1) | DD298447A5 (de) |
DE (1) | DE3927890A1 (de) |
FI (1) | FI920768A0 (de) |
HU (1) | HUT59764A (de) |
WO (1) | WO1991003048A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6099619A (en) * | 1997-10-09 | 2000-08-08 | Uop Llc | Purification of carbon dioxide |
US6511528B1 (en) | 1999-03-26 | 2003-01-28 | Uop Llc | Purification of carbon dioxide |
JP4171953B2 (ja) | 2000-01-18 | 2008-10-29 | ソニー株式会社 | ディスク搬送装置及びディスク搬送方法 |
US6538752B2 (en) * | 2001-05-17 | 2003-03-25 | Hewlett-Packard Company | System and method for positioning a component using feedback |
CN102874534B (zh) * | 2012-10-08 | 2017-03-01 | 上海集成电路研发中心有限公司 | 自动化物料输送系统及其方法 |
JP6593316B2 (ja) * | 2016-12-15 | 2019-10-23 | 株式会社ダイフク | 物品搬送車 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE632189A (de) * | ||||
FR1145679A (fr) * | 1954-09-16 | 1957-10-29 | Emi Ltd | Perfectionnements aux machines-outils, et notamment aux machines-outils automatiques |
FR2024635A1 (de) * | 1968-11-30 | 1970-08-28 | Philips Nv | |
FR2107046A5 (de) * | 1970-08-24 | 1972-05-05 | Computervision Corp | |
EP0135754A2 (de) * | 1983-08-22 | 1985-04-03 | Kabushiki Kaisha S.G. | Positionier-Steuervorrichtung für einen elektronischen Motor |
EP0145268A1 (de) * | 1983-11-09 | 1985-06-19 | Sony Corporation | Signalaufnahme- und/oder Wiedergabesystem mit einer Einrichtung zum Aufbewahren und Befördern von Kassetten |
US4580254A (en) * | 1983-07-27 | 1986-04-01 | Victor Company Of Japan, Ltd. | Automatic disc selection type reproducing apparatus |
WO1988009033A1 (en) * | 1987-05-07 | 1988-11-17 | Deutsche Thomson-Brandt Gmbh | Compact disc changer |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07118140B2 (ja) * | 1985-12-11 | 1995-12-18 | 富士写真フイルム株式会社 | 磁気デイスクカ−トリツジの装脱装置 |
DE3728587A1 (de) * | 1987-08-27 | 1989-03-09 | Thomson Brandt Gmbh | Vorrichtung zur entnahme und zum abspielen eines plattenfoermigen aufzeichnungstraegers aus den faechern eines magazins |
DE8809033U1 (de) * | 1988-07-08 | 1989-11-02 | Carl Fuhr Gmbh & Co, 5628 Heiligenhaus | Mit Riegel versehener Tür- oder Fensterflügel |
-
1989
- 1989-08-24 DE DE3927890A patent/DE3927890A1/de not_active Withdrawn
-
1990
- 1990-07-20 WO PCT/EP1990/001188 patent/WO1991003048A1/de not_active Application Discontinuation
- 1990-07-20 AU AU59604/90A patent/AU5960490A/en not_active Abandoned
- 1990-07-20 EP EP90910671A patent/EP0489026A1/de not_active Withdrawn
- 1990-07-20 JP JP2509984A patent/JPH04507473A/ja active Pending
- 1990-07-20 HU HU92498A patent/HUT59764A/hu unknown
- 1990-08-22 DD DD90343584A patent/DD298447A5/de not_active IP Right Cessation
- 1990-08-23 CN CN90107170A patent/CN1049738A/zh active Pending
-
1992
- 1992-02-21 FI FI920768A patent/FI920768A0/fi not_active Application Discontinuation
- 1992-03-16 US US07/852,067 patent/US5248888A/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE632189A (de) * | ||||
FR1145679A (fr) * | 1954-09-16 | 1957-10-29 | Emi Ltd | Perfectionnements aux machines-outils, et notamment aux machines-outils automatiques |
FR2024635A1 (de) * | 1968-11-30 | 1970-08-28 | Philips Nv | |
FR2107046A5 (de) * | 1970-08-24 | 1972-05-05 | Computervision Corp | |
US4580254A (en) * | 1983-07-27 | 1986-04-01 | Victor Company Of Japan, Ltd. | Automatic disc selection type reproducing apparatus |
EP0135754A2 (de) * | 1983-08-22 | 1985-04-03 | Kabushiki Kaisha S.G. | Positionier-Steuervorrichtung für einen elektronischen Motor |
EP0145268A1 (de) * | 1983-11-09 | 1985-06-19 | Sony Corporation | Signalaufnahme- und/oder Wiedergabesystem mit einer Einrichtung zum Aufbewahren und Befördern von Kassetten |
WO1988009033A1 (en) * | 1987-05-07 | 1988-11-17 | Deutsche Thomson-Brandt Gmbh | Compact disc changer |
Also Published As
Publication number | Publication date |
---|---|
CN1049738A (zh) | 1991-03-06 |
AU5960490A (en) | 1991-04-03 |
FI920768A0 (fi) | 1992-02-21 |
EP0489026A1 (de) | 1992-06-10 |
JPH04507473A (ja) | 1992-12-24 |
DE3927890A1 (de) | 1991-02-28 |
HU9200498D0 (en) | 1992-04-28 |
US5248888A (en) | 1993-09-28 |
DD298447A5 (de) | 1992-02-20 |
HUT59764A (en) | 1992-06-29 |
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