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Anglicky v odborných předmětech "Support of teaching technical subjects in English “

Anglicky v odborných předmětech "Support of teaching technical subjects in English “. Tutorial : Engineering metrology Topic : Workshop gauges Prepared by: Ing. Pavel Rožek. Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/04.0002

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Anglicky v odborných předmětech "Support of teaching technical subjects in English “

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  1. Anglicky v odborných předmětech"Support ofteachingtechnicalsubjects in English“ Tutorial: Engineering metrology Topic:Workshop gauges Prepared by:Ing. Pavel Rožek Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/04.0002 je spolufinancován Evropským sociálním fondem a státním rozpočtem České republiky.

  2. Workshop gauges

  3. Described measures of length • Final length Basic gauges, limit calibres, measuring mandrels, referential (setting) rings etc. • Linear length Steel gauges, survey areas, steel coiling meters etc.

  4. Slide callipers • Slide callipers represent large group of simple gauges. • There belong slide callipers, slide depth gauges and slide altimeters. • They are universal, they are used to shaft and hole diameters measuring, distance, pitch and depth measuring, and also to geometrical deviation measuring.

  5. Slide calipers • Slide calliper with vernier Vernier difference is 0,1 mm, 0,05 mm or 0,02 mm. • Slide callipers with dial deviation indicator Scale division of circular dial is 0,05 mm, 0,02 mm or 0,01 mm. • Digital slide calliper has electronic measuring system, measured value is read on display with digital reading 0,01 mm. • Digital slide depth gauge

  6. Height gauge - Altimeters • Altimeters are devices with vertical measuring axis, • Slide altimeter used for undemanding control operations and for scribing too, • Universal altimeter used at demanding checking of difficult, box parts.They enable to evaluate measuring results in 2 coordinates.

  7. Micrometer gauge Gauges for measuring inside and outside sizes. Measuring element is micrometric bolt (measuring spindle). • Snap micrometer - measuring extent is 25 mm, - measuring force is from 5 N to 10 N, • Types of snap micrometer: - wire micrometers , - thread micrometers, - tooth micrometers • Micrometer with dial deviation indicator (pasameter)

  8. Other types of micrometer gauges • Self-centring dual-contact cavity gauge (for accurate measuring inside holes) • Self-centring three-contact cavity gauge • Digital cavity gauge (for accurate measuring inside holes)

  9. Deviation indicators • They are gauges - stroke of measuring rod converts by gear mechanism to deviation indicator scale. • In accordance to transmission mechanism , they divide into: - Deviation indicators with mechanical gear, - Deviation indicators with mechanical-optical gear, - Deviation indicators with pneumatic transmission, - Deviation indicators with electric transmission

  10. Deviation indicators Dial deviation indicators are used for: • Measuring of controlled deviations compared with nominal or set dimension • Measuring of shape and position deviations (peripheral and frontal offset) • Setting of components to required position at metalworking or measuring

  11. Measuring supports • Measuring bench (table) for dial deviation indicators, toggle deviation indicators, indicators and measuring probes • Machine for peripheral throwing control for quick and easy control of peripheral offset

  12. Question 1: Name at least 3 slide callipers and describe their usage in practice. Question 2: What is the machine for peripheral offset control used for?

  13. Literature • NENÁHLO, Čeněk. Měření geometrických veličin. 1. Praha: ČMS, 2005. 207 s. • Mahr, MINIKATALOG – VÝROBNÍ MĚŘICÍ TECHNIKA Translation: • www.seznam.cz • www.slovnik.cz • JANATA, Petr. Handy slovník technický anglicko-český a česko-anglický. Plzeň: Nakladatelství Fraus, 2000. ISBN 80-7238-075-3 • Lingea LEXIKON 5, Technický slovník anglicko-český a česko-anglický. 2010.

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