Amaliy ish tish frezalash stanoklarini sozlash

5M32 modelli tish frezalash stanogini to‘g’ri tishli g’ildiraklarni kesishga sozlash


Bosh harakat – frezaning aylanishi (19-rasm).
Kinematik balans tenglamasi:


ayl/min.


Obkat harakati: Obkat zanjirining oxirgi zvenolarini hisobiy siljishlari: Z₁ kirimli frezaning bir marta aylanishida zagotovka marta aylanishi kerak.
Zanjirning kinematik balans tenglamsi:

Z > 161 uchun , Z > 161 uchun esa .

Sozlash formulasi:

Z ≥ 161 uchun ,

Z ≤ 161 uchun esa .

Almashma tishli g’ildiraklar to‘plami: 23, 24, 25 (2 ta), 30, 33, 34, 35, 37, 40, 40, 41, 43, 45, 47, 48, 50, 53, 55, 58, 59, 60, 61, 62, 65, 67, 70, 71, 73, 75, 79, 80, 83, 85, 87, 89, 90, 92, 95, 98, 100.
Vertikal surish – zagotovkaning bir aylanishida freza vertikal surishning S_v kattaligiga surilishi kerak.
Kinematik balans tenglamasi


.

Sozlash formulasi:

To‘g’ri tishlarni kesish uchun freza gorizontalga nisbatan chervyak freza vitkalarini ko‘tarilish burchagi α ga teng bo‘lgan φ burchak ostida o‘rnatiladi.

5M32 modelli tish frezalash stanogini vintsimon tishli silindrik g’ildiraklarni kesishga sozlash

Bu holda zagotovka obkat harakatidan tashqari vintsimon tishni shakllantirish uchun bulish harakati, differensial zanjiri bo‘yicha qo‘shimcha aylanishni ham oladi.

Bu zanjirning hisobiy siljishi: freza tishining vint chizig’i qadami R_vl kattaligiga siljishida - zagotovkaning bir aylanishi.
Bu zanjirning (differensial zanjiri) kinematik balans tenglamasi:

bu erda , , .

Sozlash formulasi:

Frezani o‘rnatish burchagi φ = β ± α ga teng olinadi, bu erda β zagotovkani tishlarini vint chizig’ini ko‘tarilish burchagi, freza va g’ildirak vint chiziqlarini yo‘nalishi har xil bo‘lganda «+» ishorasi, bir xil bo‘lganda esa «–» ishorasi olinadi.