JPS5757201A - Method of measuring thrust depth of punch on punching metal mold - Google Patents

Method of measuring thrust depth of punch on punching metal mold

Info

Publication number
JPS5757201A
JPS5757201A JP13256080A JP13256080A JPS5757201A JP S5757201 A JPS5757201 A JP S5757201A JP 13256080 A JP13256080 A JP 13256080A JP 13256080 A JP13256080 A JP 13256080A JP S5757201 A JPS5757201 A JP S5757201A
Authority
JP
Japan
Prior art keywords
metal mold
depth
punching metal
thrust
sheet
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
JP13256080A
Other languages
Japanese (ja)
Inventor
Shigeru Ito
Toshimaro Nakamura
Mitsutoshi Kamata
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.)
Resonac Corp
Original Assignee
Shin Kobe Electric Machinery Co 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 Shin Kobe Electric Machinery Co Ltd filed Critical Shin Kobe Electric Machinery Co Ltd
Priority to JP13256080A priority Critical patent/JPS5757201A/en
Publication of JPS5757201A publication Critical patent/JPS5757201A/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
    • G01B1/00—Measuring instruments characterised by the selection of material therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)

Abstract

PURPOSE:To improve finishing accuracy of the punched products and to prolong a service life of metal molds, by a method wherein a thrust depth of punches on a punching metal mold is accurately measured by using a thermoplastic sheet formed of such material as having a large rate of tensile breakage elongation. CONSTITUTION:A thermoplastic sheet formed of such material as having a large rate of tensile breakage elongation is placed on a die and a punching metal mold is lowered thereon. Then, a depth of thrust which has produced on the punched plastic sheet is measured so as to decide whether an amount of the thrust depth is proper or not. For example, a sheet 5 formed of polyprepylene, polyethylene or the like in a thickness of about 0.3mm. is placed on a die 6, and then a punching metal mold including a punch holder 1 to which a punch plate 3 equipped with punches 4 is rigidly mounted via a packing plate 2 is lowered toward the die 6. On this occasion, the thermoplastic sheet is not broken and a thrust depth 8 of the punches can be accurately measured after removing the sheet from the metal mold. Thus, it becomes possible to easily decide whether the measured dimension is adequate or not.
JP13256080A 1980-09-24 1980-09-24 Method of measuring thrust depth of punch on punching metal mold Pending JPS5757201A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13256080A JPS5757201A (en) 1980-09-24 1980-09-24 Method of measuring thrust depth of punch on punching metal mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13256080A JPS5757201A (en) 1980-09-24 1980-09-24 Method of measuring thrust depth of punch on punching metal mold

Publications (1)

Publication Number Publication Date
JPS5757201A true JPS5757201A (en) 1982-04-06

Family

ID=15084143

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13256080A Pending JPS5757201A (en) 1980-09-24 1980-09-24 Method of measuring thrust depth of punch on punching metal mold

Country Status (1)

Country Link
JP (1) JPS5757201A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04146077A (en) * 1990-10-05 1992-05-20 Kondo Seisakusho:Kk Chuck device using collet chuck in cylindrical grinder

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5119848B2 (en) * 1972-07-14 1976-06-21
JPS5249055A (en) * 1975-10-16 1977-04-19 Power Reactor & Nuclear Fuel Dev Corp Method of measuring surface roughness

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5119848B2 (en) * 1972-07-14 1976-06-21
JPS5249055A (en) * 1975-10-16 1977-04-19 Power Reactor & Nuclear Fuel Dev Corp Method of measuring surface roughness

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04146077A (en) * 1990-10-05 1992-05-20 Kondo Seisakusho:Kk Chuck device using collet chuck in cylindrical grinder

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