1-jadval. Tishli sirt o’lchamlari aniqligi va ishchi yuzasining sifat parametrlarini ta’minllash bo’yicha ishlov berish usullarining imkoniyatlari
Ishlov berish usullari
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Aniq-
lik dara-
jasi
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Detalning sirtqi qatlami sifatining parametrlari
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Hmax,
mkm
1000 mm.da
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Wz,mkm
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Ra, mkm
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Rp, mkm
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Sm, mm
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S, mm
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1
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2
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3
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4
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5
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6
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7
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8
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Modulli frezalar bilan tish qirqish
Chervyakli freza bilan
Dolbyakda
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9...11
8...9
7...8
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20...100
15...60
10...40
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10...50
5...50
5...30
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8...16
3,2...8
2,0...4,0
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20...50
8,0...25
5,0...12
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1,25...5,0
0,32...1,6
02,...1,25
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1,0...5,0
0,2...1,6
0,125...1,25
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Sidirish
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6...7
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5...20
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31...20
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0,8...1,6
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2,0...5,0
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0,08...2,0
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0,05...2,0
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Nakatkalash
sh
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8...9
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10...80
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10...50
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0,8...2,0
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1,8...6,0
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0,08...5,0
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0,063...5,0
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Shevinglash
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5...6
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5...15
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2...10
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0,6...1,25
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1,5...3,6
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0,125...0,5
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0,08...0,5
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Jo’valash
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5...6
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3...8
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3...10
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0,32...1,0
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0,63...3,0
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0,063...2,0
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0,032...2,0
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Ishqalash
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5
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2...5
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2...3
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0,1...0,25
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0,15...0,6
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0,032..0,5
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0,02...0,5
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Eslatma: 1.Berilganlar konstruktsion po’lotlardan tayyorlangan detallar uchun.
2. Cho’yanli detallar uchun g’adir-budurlik Ra, Rz parametrlarni jadvaldagidan 1,5 marta katta oling.
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1. Tishli uzatmalarning qanday ko’rinishlari bor?
2. GOST 1.643-72, GOST 1.758-72, GOST 3.675-72 da tishli
g’ildiraklarning qanday tavsiflari berilgan ?
3. Silindrik tishli g’ildiraklar qaysi usullarda ishlanadi?
4. Egri chiziqli tishli konusli g’ildiraklarning tishlarini qaysi
usullarda kesiladi?
5. Chervyakli g’ildiraklar qaysi usullar bilan ishlanadi?
6. Chervyaklarni jilvirlash sxemasini ko’rsati
Dostları ilə paylaş: |
