US3928827A - Device for the photoelectric marking and reading of tools for NC machine tools - Google Patents

Device for the photoelectric marking and reading of tools for NC machine tools Download PDF

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Publication number
US3928827A
US3928827A US472286A US47228674A US3928827A US 3928827 A US3928827 A US 3928827A US 472286 A US472286 A US 472286A US 47228674 A US47228674 A US 47228674A US 3928827 A US3928827 A US 3928827A
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US
United States
Prior art keywords
reading
reading head
coding
line
tool
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 - Lifetime
Application number
US472286A
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English (en)
Inventor
Jiri Kepka
Karel Kovarik
Bohuslav Loun
Jaromir Zeleny
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vyzkumny Ustav Obrabecich Stroju a Obrabeni
Original Assignee
Vyzkumny Ustav Obrabecich Stroju a Obrabeni
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/10861—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices sensing of data fields affixed to objects or articles, e.g. coded labels
    • 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
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
    • B23Q3/1552—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
    • B23Q3/15546—Devices for recognizing tools in a storage device, e.g. coding devices
    • 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
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/12—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using record carriers
    • G05B19/124—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using record carriers using tapes, cards or discs with optically sensed marks or codes

Definitions

  • the invention relates to a photoelectric marking and reading device, such device being especially useful with tools for NC machine tools that are equipped with a tool magazine and a device for an automatic tool exchange, e.g. tooling centers.
  • a coding of tools for NC machine tools equipped with a coded tool magazine has been carried out until now either (1) mechanically by a system of stops that control a system of switches, or (2) contactless-electromagnetically, viz. by a system of small permanent magnets situated on the tool that pass a system of switching coils.
  • a limited service life of switching elements and its large dimensions are a disadvantage of the first system.
  • a large surface needed for situating that coding elements on a tool is a disadvantage of the second system, as it makes tool holders more complicated, heavier andit limits the numerical range of a code. In fact, it is sorely needed feature that coding plates shall have minimum dimensions.
  • Such device comprises a coding plate provided with coding fields arranged in several lines, and reading phototransmitters that are arranged in one line in a reading head.
  • a reading head there may be situated, opposite the line of the phototransmitters,'.a corresponding line of light sources, so that one individual light source corresponds to each phototransmitter; so that together they form a reading couple, the number of these reading couples corresponding to the number of coding spots in one line of the coding plate.
  • the whole reading head may be fixed to its clamping holder and movable in the plane which is at right angles to the direction of the functional movement being limited either by springs or by stable stops, or by both of them.
  • the reading head during the reading may be directed to the coding plate, which is fixed to a tool holder, by one or more guides having narrowed guiding ends engaged in guiding grooves.
  • the reading head with the line of the reading couples pass across the lines of the coding fields and reads them in a manner similar to a reader of a punched tape, viz. serialparallely.
  • radiators ev. emitting diodes, e.g. galium arsenid diodes, emitting an invisible infrared radiation.
  • These radiators, as well as the respective photosensors e.g. silicon phototransistors, are now produced with such miniature dimensions that their couple arrangement is advantageous both for design and production so that much smaller reading heads may be made than when applying one common light source.
  • the proper reading of coding fields may be carried out either in a reflectance system, wherein the fields are differentiated by a different light reflectance, or in a transmittance system wherein the fields are made as holes or solid spots in an opaque material.
  • FIG. 1 is a view in plan of a coding plate 1
  • FIG. 2 is a schematic view of an arrangement of a reading head together with a coding plate and the head of a tool holder in a transmittance system
  • FIG. 3 is a diagram of a position arrangement of light 'sources and phototransmitters with respect to the coding plate in the arrangement for a reflectancesystem.
  • FIG; 1 there is drawn a coding plate 1 with five vertical lines of coding fields 2.
  • Each of these lines in a transmittance system includes six coding fields 2 represented either by through-holes or solid spots.
  • a transmittance system there :may be employed a reflectance system having a coding plate with small mirror surfaces and dull ones.
  • a functional movement of the reading head is in both cases cross with respect to the mentioned vertical lines, as shown by an arrow in FIG. 1.
  • FIG. 2 there is shown an example of a reading head including a line of phototransmitters 3 and respective line of light sources 4, e.g. radiators. Both vertical lines are situated in plates 13 fixed in the reading head.
  • the functional movement of the reading head with respect to the coding plate 1 is in this case rectangular or normal to a-front view plane.
  • the coding plate 1 is fixed in a head of a tool holder 5 which is provided on both sides with grooves 6. In these centering grooves 6 the narrowed ends of guide bars 7 are engaged in these centering grooves 6 during the functional movement.
  • Grooves 12 are formed in opposite side walls of a clamping holder 10. Springs 9, by means of which the reading head is resiliently mounted in the clamping holder 10, engage oppositely extending guide members 11 on the reading head. Elastic deviations of the reading head with respect to the clamping holder 10 are limited by engagement between the guides 11 and the side wall 12a and the upper end lower walls 12b and 12c of the respective recess 12. This insures a correct position of reading couples of the phototransmitters 3 and radiators 4 with respect to the coding plate 1 in the moment of reading, as well as a correct reading even in case that the tool holder is not accurately situated in the magazine.
  • a coding in the range of five and more decades may be carried out in the coding plate, because each line of field's 2 of the coding plate 1 represents one decade. This is suitable for any requirements for marking tools for machine tools, and this range may eventually even be increased. Applying any other system known till now, one cannot accomplish such small dimensions of the coding plate 1 and coding head. This contactless system of reading insures a maximum service life of the device. Eventual fouling of the coding plate that may endanger a reliability of reading may be automatically removed by pressure air which passes through the holes in the reading head.
  • FIG. 3 there is shown diagrammatically an arrangement of the above-mentioned reflectance system, which may be more convenient in some cases than the transmittance system.
  • Light radiated by source 4' is either reflected or not by coding fields 2 to coding plate 1' of phototransmitters 3.
  • the rest of the arrangement may be the same as that in FIG. 1.
  • a machine tool equipped with a tool magazine device for an automatic tool exchange the improvement which comprises a holder for a tool to be exchanged, a coding plate affixed to the tool holder, a clamping holder, and a reading head, means mounting the reading head on the clamping holder, the tool holder and the coding plate mounted thereon being slidably movable past the reading head to permit the reading of the coding plate by the reading head, and at least one guide comprising inter-fitting and relatively slidable parts on the tool holder and the reading head to position such parts relative to each other.
  • Apparatus according to claim 2 comprising means yieldably urging the reading head to a central position in said plane normal to the direction of the sliding movement of the reading head.
  • Apparatus according to claim 1 wherein the coding plate is provided with light receiving coding field arranged in several lines, and the reading head is provided with reading photo-transmitters that are arranged in one line.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Mechanical Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Machine Tool Sensing Apparatuses (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
  • Character Input (AREA)
US472286A 1973-05-29 1974-05-22 Device for the photoelectric marking and reading of tools for NC machine tools Expired - Lifetime US3928827A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS3866A CS160721B1 (enrdf_load_stackoverflow) 1973-05-29 1973-05-29

Publications (1)

Publication Number Publication Date
US3928827A true US3928827A (en) 1975-12-23

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ID=5379996

Family Applications (1)

Application Number Title Priority Date Filing Date
US472286A Expired - Lifetime US3928827A (en) 1973-05-29 1974-05-22 Device for the photoelectric marking and reading of tools for NC machine tools

Country Status (7)

Country Link
US (1) US3928827A (enrdf_load_stackoverflow)
JP (2) JPS5042477A (enrdf_load_stackoverflow)
CS (1) CS160721B1 (enrdf_load_stackoverflow)
DD (1) DD111654A1 (enrdf_load_stackoverflow)
DE (1) DE2422972C3 (enrdf_load_stackoverflow)
FR (1) FR2232017B1 (enrdf_load_stackoverflow)
GB (1) GB1469887A (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4066910A (en) * 1976-04-09 1978-01-03 Lawrence Systems, Inc. Transmissivity-coded data card systems
WO1983000760A1 (en) * 1981-08-19 1983-03-03 Schittko, Hermut A method and apparatus for the coded tagging of articles, particularly garments
EP0218187A3 (en) * 1985-10-10 1987-09-09 Ernst Winter & Sohn (Gmbh & Co.) Process and arrangement for the drive control of various successively operating grinding wheels
EP0320168A1 (en) * 1987-12-01 1989-06-14 PACESETTER INFUSION LTD. trading as MINIMED TECHNOLOGIES Cassette optical identification apparatus for a medical infusion system
US6479813B2 (en) * 1999-12-27 2002-11-12 Matsushita Electric Industrial Co., Ltd. Structure of motor-driven swing unit
CN104156687A (zh) * 2014-08-25 2014-11-19 四川大学 一种适用于工业现场的新型物料编码自动识别装置
ITUB20160532A1 (it) * 2016-01-14 2017-07-14 Officine Aiolfi S R L Dispositivo anticollisione per macchine di misura a coordinate e relativo metodo

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4636634A (en) * 1984-08-28 1987-01-13 Veeco Integrated Automation, Inc. Apparatus with intelligent bins indicating the presence and identity of stored coded articles
US4644143A (en) * 1984-12-13 1987-02-17 Veeco Integrated Automation, Inc. Static bar code reader
US4571488A (en) * 1985-01-29 1986-02-18 E. I. Du Pont De Nemours And Company Heat-fusion pipe fitting system
GB2174215B (en) * 1985-04-23 1988-09-14 Somar Corp Master film processing robot
DE3518902C2 (de) * 1985-05-25 1994-06-09 Schaudt Maschinenbau Gmbh Vorrichtung zur Identifikation von Schleifscheiben
DE102007027191B4 (de) * 2007-06-13 2009-12-17 Siemens Ag Befestigungselement und Halterungselement und Vorrichtung zur Halterung eines Bedienelementes

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3226833A (en) * 1963-01-11 1966-01-04 Jerome H Lemelson Automatic inspection apparatus and method
US3297879A (en) * 1963-03-18 1967-01-10 W & L E Gurley Optical encoder responsive to movement in two directions
US3576540A (en) * 1967-11-20 1971-04-27 Sundstrand Corp Plural machine tool and part handling control system
US3621265A (en) * 1969-07-29 1971-11-16 Pitney Bowes Alpex Hand held coded document reader into which document is first inserted and then read as it is withdrawn
US3702471A (en) * 1970-01-08 1972-11-07 Ferranti Ltd Measuring apparatus
US3729618A (en) * 1972-06-12 1973-04-24 Ibm Scanning mechanism and printer
US3786236A (en) * 1970-12-24 1974-01-15 Seiko Instr & Electronics Programmed signal generating apparatus
US3822384A (en) * 1972-03-31 1974-07-02 Philips Corp Opto-electronic device having coupled emitter and receiver and method of manufacturing same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1180007A (fr) * 1957-03-18 1959-06-01 Beaudouin Atel Const Procédé et dispositif de lecture en série d'enregistrement codé
US3173203A (en) * 1960-12-29 1965-03-16 Scully Anthony Corp Machine tools
DE1189300B (de) * 1963-06-12 1965-03-18 Remington Rand G M B H Abtasteinrichtung fuer Lochkarten
DE1808853A1 (de) * 1968-11-14 1970-06-04 Augsburg Nuernberg Ag Zweignie Vorrichtung zum Abtasten kodierter Werkzeuge fuer numerisch gesteuerte Werkzeugmaschinen
DE2036218A1 (de) * 1969-07-22 1971-02-04 Pednni. Brunetto, Arona. Novara, Gassino, Teresio, Ivrea, Turin; (Ita hen) Kodezeichenlesesystern
DE2153771C2 (de) * 1971-10-25 1974-01-24 H. Pautze & Co, 1000 Berlin Optische Abtastvorrichtung für Lochkartenspeieher von Dienstleistungsautomaten, wie Fahrkartenautomaten od. dgl

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3226833A (en) * 1963-01-11 1966-01-04 Jerome H Lemelson Automatic inspection apparatus and method
US3297879A (en) * 1963-03-18 1967-01-10 W & L E Gurley Optical encoder responsive to movement in two directions
US3576540A (en) * 1967-11-20 1971-04-27 Sundstrand Corp Plural machine tool and part handling control system
US3621265A (en) * 1969-07-29 1971-11-16 Pitney Bowes Alpex Hand held coded document reader into which document is first inserted and then read as it is withdrawn
US3702471A (en) * 1970-01-08 1972-11-07 Ferranti Ltd Measuring apparatus
US3786236A (en) * 1970-12-24 1974-01-15 Seiko Instr & Electronics Programmed signal generating apparatus
US3822384A (en) * 1972-03-31 1974-07-02 Philips Corp Opto-electronic device having coupled emitter and receiver and method of manufacturing same
US3729618A (en) * 1972-06-12 1973-04-24 Ibm Scanning mechanism and printer

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4066910A (en) * 1976-04-09 1978-01-03 Lawrence Systems, Inc. Transmissivity-coded data card systems
WO1983000760A1 (en) * 1981-08-19 1983-03-03 Schittko, Hermut A method and apparatus for the coded tagging of articles, particularly garments
US4605847A (en) * 1981-08-19 1986-08-12 Hermut Schittko Method and apparatus for the coded tagging of articles, particularly garments
EP0218187A3 (en) * 1985-10-10 1987-09-09 Ernst Winter & Sohn (Gmbh & Co.) Process and arrangement for the drive control of various successively operating grinding wheels
EP0320168A1 (en) * 1987-12-01 1989-06-14 PACESETTER INFUSION LTD. trading as MINIMED TECHNOLOGIES Cassette optical identification apparatus for a medical infusion system
US6479813B2 (en) * 1999-12-27 2002-11-12 Matsushita Electric Industrial Co., Ltd. Structure of motor-driven swing unit
CN104156687A (zh) * 2014-08-25 2014-11-19 四川大学 一种适用于工业现场的新型物料编码自动识别装置
CN104156687B (zh) * 2014-08-25 2017-02-22 四川大学 一种适用于工业现场的新型物料编码自动识别装置
ITUB20160532A1 (it) * 2016-01-14 2017-07-14 Officine Aiolfi S R L Dispositivo anticollisione per macchine di misura a coordinate e relativo metodo

Also Published As

Publication number Publication date
JPS5751792Y2 (enrdf_load_stackoverflow) 1982-11-11
FR2232017B1 (enrdf_load_stackoverflow) 1979-05-25
FR2232017A1 (enrdf_load_stackoverflow) 1974-12-27
JPS5042477A (enrdf_load_stackoverflow) 1975-04-17
DD111654A1 (enrdf_load_stackoverflow) 1975-03-05
DE2422972A1 (de) 1974-12-19
CS160721B1 (enrdf_load_stackoverflow) 1975-05-04
DE2422972C3 (de) 1982-01-28
GB1469887A (en) 1977-04-06
JPS5472786U (enrdf_load_stackoverflow) 1979-05-23
DE2422972B2 (de) 1981-05-21

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