JPS576308A - Discriminator for front and rear of work to be sheared - Google Patents

Discriminator for front and rear of work to be sheared

Info

Publication number
JPS576308A
JPS576308A JP8035780A JP8035780A JPS576308A JP S576308 A JPS576308 A JP S576308A JP 8035780 A JP8035780 A JP 8035780A JP 8035780 A JP8035780 A JP 8035780A JP S576308 A JPS576308 A JP S576308A
Authority
JP
Japan
Prior art keywords
work
photoelectric transducer
rear side
sheared
slope
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
JP8035780A
Other languages
Japanese (ja)
Inventor
Yoji Hirata
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8035780A priority Critical patent/JPS576308A/en
Publication of JPS576308A publication Critical patent/JPS576308A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
    • G01B11/306—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces for measuring evenness

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Accessories And Tools For Shearing Machines (AREA)

Abstract

PURPOSE:To enable automatic discrimination of front side and rear side, by using that the electric signal intensity obtained by forming a real image produced from the emission of light on the surface of a work to be processed with a slope, on a photoelectric transducer, due to the deformation produced at processing. CONSTITUTION:A light is irradiated on one surface of a work to be sheared with a slope, the image is formed on a photoelectric transducer by using the lens system and the discrimination of front or rear side is made by comparing the output of the photoelectric transducer obtained in this case at a comparator. For example, the surface of the work 1 to be sheared is irradiated with a light A with a slope and the real image is obtained on the photoelectric transducer 4 having a mask 5, allowing to obtain a greater difference between the front side and rear side of the output of the photoelectric transducer due to the effect of burr produced at the circumference of the work to be processed. Thus, the automatic discrimination for front side and rear side can be made simply, surely and efficiently, by comparing the signal intensity through the use of a comparator.
JP8035780A 1980-06-12 1980-06-12 Discriminator for front and rear of work to be sheared Pending JPS576308A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8035780A JPS576308A (en) 1980-06-12 1980-06-12 Discriminator for front and rear of work to be sheared

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8035780A JPS576308A (en) 1980-06-12 1980-06-12 Discriminator for front and rear of work to be sheared

Publications (1)

Publication Number Publication Date
JPS576308A true JPS576308A (en) 1982-01-13

Family

ID=13715996

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8035780A Pending JPS576308A (en) 1980-06-12 1980-06-12 Discriminator for front and rear of work to be sheared

Country Status (1)

Country Link
JP (1) JPS576308A (en)

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