JPS575108A - Origin return system - Google Patents

Origin return system

Info

Publication number
JPS575108A
JPS575108A JP7871180A JP7871180A JPS575108A JP S575108 A JPS575108 A JP S575108A JP 7871180 A JP7871180 A JP 7871180A JP 7871180 A JP7871180 A JP 7871180A JP S575108 A JPS575108 A JP S575108A
Authority
JP
Japan
Prior art keywords
switches
shielding plate
switch
motor
moving body
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
JP7871180A
Other languages
Japanese (ja)
Inventor
Hisashi Sukai
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP7871180A priority Critical patent/JPS575108A/en
Publication of JPS575108A publication Critical patent/JPS575108A/en
Pending legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Position Or Direction (AREA)
  • Numerical Control (AREA)

Abstract

PURPOSE:To return a moving body to an origin automatically with inexpensive facilities, by equipping the 1st and 2nd switches for indicating the moving body is at the original position and near the original position respectively, and by moving the body moving as the switches detect the moving body. CONSTITUTION:Switches 1, 2 and 3 each consisting of a light emitting element and a photodetecting element are those showing a moving body table 9 is at an original point, near the original position and at a limit point respectively, and a shielding plate 4 fitted to the table 9 controls the operation of each switch according to whether light from the corresponding light emitting element is cut off or not. In returning to the original point, if the shielding plate 4 does not shield the switch 2, a pulse motor 8 is driven at a high speed to turn a driving shaft 5 counterclockwise, and the table 9 is moved in the opposite direction to an arrow; when the shielding plate 4 reaches the switch 2, the motor 8 is changed from the high to low speed and the table 9 is further moved. Once the shielding plate 4 reaches the switch 1, driving the motor 8 is stopped to stop the counterclockwise turning of the driving shaft, thus stopping the table at the original point. A table 9' also operates similarly in a direction Y through switches 1'-3' and a motor 8'.
JP7871180A 1980-06-11 1980-06-11 Origin return system Pending JPS575108A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7871180A JPS575108A (en) 1980-06-11 1980-06-11 Origin return system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7871180A JPS575108A (en) 1980-06-11 1980-06-11 Origin return system

Publications (1)

Publication Number Publication Date
JPS575108A true JPS575108A (en) 1982-01-11

Family

ID=13669444

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7871180A Pending JPS575108A (en) 1980-06-11 1980-06-11 Origin return system

Country Status (1)

Country Link
JP (1) JPS575108A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62190502A (en) * 1986-02-17 1987-08-20 Aichi Mach Ind Co Ltd Origin calculating method of industrial robot
JP2003099128A (en) * 2001-09-21 2003-04-04 Ricoh Co Ltd Positioning device for traveling object

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62190502A (en) * 1986-02-17 1987-08-20 Aichi Mach Ind Co Ltd Origin calculating method of industrial robot
JP2003099128A (en) * 2001-09-21 2003-04-04 Ricoh Co Ltd Positioning device for traveling object

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