2. Detalning konstruksiyasi va qo’llanilishi

5). Zagotovka olish usulini tanlash.
Detal uchun zagotovkani olish usulini tanlash detalning qo’llanilishi va konstruksiyasi, materiali va unga qo’yilgan texnik talablar, shuningdek , ishlab chiqarish turi va iqtisodiy tejamkorlik kabi omillar majmui nazarda tutilgan holda amalga oshiriladi. Yuqorida sanalgan omillarga tayangan holda ishchi chizmadagi detalni tayyorlash imkonini beruvchieng kam tannarxga ega zagotovka ishlash usuli tanlanadi.
Zagotovka olish usuli : Quyib olish Rz=200 mkm h=300 mkm

6. Metal kesish dastgohlarini tanlash.

1. Parmalash dastgohi: 2N150
2.Frezalash dastgohi: 6T104
Vertikal parmalash dastgohi 2N150

Parametrlar	O’lchamlar, mm
Parmalanadigan teshikning eng katta diametri	50 mm
Dastgoh quvvati	Nm=2,5 kvt,
F.I.K.	η=0,8
Shpindelning aylanish soni, ayl/min:	22,5; 31,5; 45; 63; 90; 125; 180; 250; 355; 500; 710; 1000.
Surish, mm/ayl:	0,05; 0,071; 0,13; 0,14; 0,2; 0,28; 0,4; 0,56; 0,8; 1,12; 1,60; 2,24.

Frezalash dastgohi 6T104
Parametrlar O’lchamlar, mm

Ish stolining o’lchamlari(eni x uzunligi)	160x630
Ish stolining eng kata ko’chish uzunligi	400
Vertikaliga	320
Eniga	160
Shpindel tezliklar soni	12
Eng katta burilish burchagi	+/- 45
Shpindelning aylanish soni, ayl/min	63-280
Stolning uzatish soni	12
Shpindel babkasining o’tish tezligi	1250
Ish maydoni	125x400
Quvvati	2.2
Eni	1205
Bo’yi	1250
Balandligi	1630
Massasi, kg	830

7.Qo’yimlarni hisoblash.

10H7 teshigiga ishlov berish.
=2( + +
= =1,2 mm = *D=78mkm
=1,4( )
Qo’yim aniqlashning hisobiy formulasi:
=1,4( ) Rz=150mkm , h=250mkm , =1,064 mm
M1 , C2 , T3 Chiqish indeksi 10
Parmalash
Rz=150mkm , h=250mkm , =1,064 mm
=2*1474 mkm
Zenkerlash
Rz=30mkm , h=30mkm , =64mkm.
=2*164,4 mkm
Razvertkalash
Rz=10mkm , h=20mkm , =3 mm
=2*33 mkm
=10,015-0,66=9,949 9,95mm
=9,95-0,33=9,62mm
=9,62-2,95=6,67 mm

=10,015-0,015=10 mm
=9,95-0,036=9,914 mm
=9,62-0,36=9,26 mm
=6,67 -1,5=5,17 mm

=10-9,914 =86mkm
=9,914 -9,26 =654 mkm
=9,26 -5,17 =4090 mkm

=10,015-9,95=65 mkm
=9,95-9,62=330 mkm
=9,62-6,67 =2950 mkm
Umumiy qo’yimlar.
=86+654+4090=4830 mkm
=65+330+2950=3345mkm

= + - =3345+900-15=4230 mkm
=10,015-4,23=5,785 mm
Bajarilgan hisoblar to’g’riligini tekshiramiz:
- =86-65=21 mkm
36-15=21 mkm
- =654-330=324 mkm
=360-36=324 mkm
- =4090-2950=1140 mkm
=1500-360=1140 mkm

Zagotovka max o’lchami 45,52 mm
zagotovka nominal o’lchami 44,402 mm
Zagotovka min o’lchami 43,92mm
Zagotovka dopuski -1600mkm
Dastlabki yo’nishda max o’lcham 40,96mm
Dastlabki yo’nishda min o’lcham40,57mm
Dastlabki yo’nish dopuski -390mkm
Toza yo’nishda max o’lcham40,259mm
Toza yo’nishda min o’lcham40,22mm

Toza yo’nish dopuski -39mkm
Nafis yo’nishda max o’lcham39,998 mm
Nafis yo’nishda min o’lcham 39,982mm

Nafis yo’nish dopuski -16mkm

=4560mkm
=3350mkm
=701mkm
=350mkm
=261mkm
=238mkm