Keywords
o‘lchash
nazorat
aniqlik
o‘lchash vositalari
metrologiya
o‘lchash noaniqligi
geometrik aniqlik
tolerantlik
kalibr
mikrometr
shtangensirkul
koordinatali-o‘lchash mashinasi
texnologik nazorat
sifat nazorati
raqamli metrologiya.
How to Cite
Abstract
Mazkur maqolada mashinasozlik ishlab chiqarishida mahsulot va detallar aniqligini ta’minlashda o‘lchash hamda nazorat qilish usullarining ilmiy-amaliy ahamiyati tahlil qilingan. Mashinasozlikda detalning geometrik o‘lchamlari, shakli, sirtlarning o‘zaro joylashuvi, g‘adir-budurligi va boshqa texnik ko‘rsatkichlarining belgilangan qiymatlarga muvofiqligi mashina va mexanizmlarning funksional xususiyatlarini belgilovchi asosiy omillardan biri hisoblanadi. Shu sababli ishlab chiqarish jarayonida o‘lchashni faqat tayyor mahsulotni tekshirish bosqichi sifatida emas, balki texnologik jarayonni boshqarishning tarkibiy qismi sifatida tashkil etish zarur. Maqolada bevosita va bilvosita o‘lchash, kontaktli va kontaktsiz nazorat, chegaraviy kalibrlar, shtangensirkul, mikrometr, indikator, optik vositalar, koordinatali-o‘lchash mashinalari va raqamli o‘lchash texnologiyalarining imkoniyatlari tahlil qilingan. O‘lchash natijasining aniqligi faqat asbobning nominal aniqligi bilan belgilanmasligi, balki o‘lchash usuli, tashqi muhit, detalning harorati, operator malakasi, bazalash sharoiti, asbobning metrologik holati va o‘lchash noaniqligi kabi omillarga ham bog‘liqligi asoslangan. ISO 14253-1 talablarida mahsulotning belgilangan chegaralarga muvofiqligini baholashda o‘lchash noaniqligini hisobga olish zarurligi ko‘rsatilgan. Shuningdek, geometrik aniqlikni baholashda geometrik toleranslarning xalqaro standartlashtirilgan tizimi va raqamli metrologiyaning ishlab chiqarish jarayonlariga integratsiyalashuvi masalalari ko‘rib chiqilgan. Tadqiqot natijasida mashinasozlikda aniqlikni ta’minlash uchun o‘lchash vositalarini to‘g‘ri tanlash, ularni muntazam kalibrlash, o‘lchash noaniqligini baholash, texnologik jarayonning turli bosqichlarida oraliq nazoratni tashkil etish va raqamli nazorat tizimlaridan foydalanish bo‘yicha ilmiy-amaliy tavsiyalar ishlab chiqilgan.References
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