UST995005I4 - Digital data communication link for automatic machining system - Google Patents

Digital data communication link for automatic machining system Download PDF

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Publication number
UST995005I4
UST995005I4 US05/967,967 US96796778A UST995005I4 US T995005 I4 UST995005 I4 US T995005I4 US 96796778 A US96796778 A US 96796778A US T995005 I4 UST995005 I4 US T995005I4
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US
United States
Prior art keywords
material handling
conductors
pallets
interrupt signal
data communication
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.)
Pending
Application number
US05/967,967
Inventor
Kenneth J. Merkel
Louis T. Svitkovich
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.)
Kearney and Trecker Corp
Original Assignee
Kearney and Trecker Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kearney and Trecker Corp filed Critical Kearney and Trecker Corp
Priority to US05/967,967 priority Critical patent/UST995005I4/en
Application granted granted Critical
Publication of UST995005I4 publication Critical patent/UST995005I4/en
Pending legal-status Critical Current

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    • 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
    • G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
    • G05B19/41815—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the cooperation between machine tools, manipulators and conveyor or other workpiece supply system, workcell
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Multi-Process Working Machines And Systems (AREA)

Abstract

A plurality of machine tools are linked together by a material handling system which carries workpieces from one machine tool to the next in line along a conveyor. The workpieces are clamped to pallets which are carried on conveyor carts between machine tools and which are shuttled onto the machine tools under the guidance of a material handling computer which controls all of the conveyor carts and pallets in the system. The limit switches which indicate the position of the carts and pallets are wired to the material handling computer over a novel data communication link which uses only two pairs of conductors for each machine tool and each section of the material handling system. A large number of limit switches can be handled by two pairs of conductors by generating an interrupt signal whenever a change occurs in the position of a cart or pallet and coupling the interrupt signal to the material handling computer over one pair of conductors while the other pair of conductors is used to sequentially interrogate all of the pertinent limit switches following receipt of the interrupt signal.
US05/967,967 1978-12-11 1978-12-11 Digital data communication link for automatic machining system Pending UST995005I4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US05/967,967 UST995005I4 (en) 1978-12-11 1978-12-11 Digital data communication link for automatic machining system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/967,967 UST995005I4 (en) 1978-12-11 1978-12-11 Digital data communication link for automatic machining system

Publications (1)

Publication Number Publication Date
UST995005I4 true UST995005I4 (en) 1980-06-03

Family

ID=25513536

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/967,967 Pending UST995005I4 (en) 1978-12-11 1978-12-11 Digital data communication link for automatic machining system

Country Status (1)

Country Link
US (1) UST995005I4 (en)

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