JPS57161609A - Laser length measuring device - Google Patents

Laser length measuring device

Info

Publication number
JPS57161609A
JPS57161609A JP4809181A JP4809181A JPS57161609A JP S57161609 A JPS57161609 A JP S57161609A JP 4809181 A JP4809181 A JP 4809181A JP 4809181 A JP4809181 A JP 4809181A JP S57161609 A JPS57161609 A JP S57161609A
Authority
JP
Japan
Prior art keywords
saddle
machine tool
laser light
reflecting mirror
reference rod
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
JP4809181A
Other languages
Japanese (ja)
Inventor
Tadashi Rokkaku
Teruyuki Matsumoto
Hiroaki Shimazutsu
Takeo Furukawa
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 Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP4809181A priority Critical patent/JPS57161609A/en
Publication of JPS57161609A publication Critical patent/JPS57161609A/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
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/0011—Arrangements for eliminating or compensation of measuring errors due to temperature or weight
    • G01B5/0014—Arrangements for eliminating or compensation of measuring errors due to temperature or weight due to temperature

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE:To improve an processing precision, by a method wherein a reflecting mirror against laser light is attached to one end of a reference rod which has a low-thermal expansion factor and is secured to a point to be measured and in a core of a moving member of a machine tool. CONSTITUTION:A reference rod 21, such as amber, having a low-thermal expansion factor, is inserted into a guide tube 18 attached in a perforation 1 formed in an upper part of a saddle 4 of a machine tool, and one end thereof is secured to the guide tube 18 in aposition (a-a' line), where a real measurement is estimated to take place, by means of a press pin 22. A reflecting mirror 16' against laser light is mounted to the other end of the reference rod 21, and the movement of the saddle 4 is regulated utilizing reflecting light of laser light. Even if the saddle 4 is affected by heat, a distance between the position of the reflecting mirror 16' and the position (a-a' line), where a real measurement is estimated to take place, is kept constant, and this causes improving of processing precision of a machine tool.
JP4809181A 1981-03-31 1981-03-31 Laser length measuring device Pending JPS57161609A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4809181A JPS57161609A (en) 1981-03-31 1981-03-31 Laser length measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4809181A JPS57161609A (en) 1981-03-31 1981-03-31 Laser length measuring device

Publications (1)

Publication Number Publication Date
JPS57161609A true JPS57161609A (en) 1982-10-05

Family

ID=12793642

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4809181A Pending JPS57161609A (en) 1981-03-31 1981-03-31 Laser length measuring device

Country Status (1)

Country Link
JP (1) JPS57161609A (en)

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