Liforomo tse nepahetseng tsa lipalo tse sebelisoang tlhahisong ea li-fasteners:
1. Palo le mamello ea bophara ba khoele ea kantle ea profil ea 60° (National Standard GB 197/196)
a. Palo ea litekanyo tsa mantlha tsa bophara ba molumo
Boholo ba motheo ba bophara ba khoele = bophara bo boholo ba khoele - pitch × coefficient value.
Polelo ea foromo: d/DP×0.6495
Mohlala: Palo ea bophara ba sekontiri sa khoele ea kantle ea M8
8-1.25×0.6495=8-0.8119≈7.188
b. Ka tloaelo ho sebelisoa 6h kantle ho khoele sekontiri se metsi mamello (e thehiloeng ho sekontiri se metsi)
Boleng bo kaholimo ba moeli ke "0"
Theko e tlase ea moeli ke P0.8-0.095 P1.00-0.112 P1.25-0.118
P1.5-0.132 P1.75-0.150 P2.0-0.16
P2.5-0.17
Foromo e kaholimo ea lipalo ke boholo ba mantlha, 'me foromo ea palo e tlase ea moeli d2-hes-Td2 ke tekanyo ea mantlha ea ho mamella bophara ba bophara-ho fapoha-ho mamellana.
M8's 6h grade pitch pitch diameter value tolerance: top limit value 7.188 low limit value: 7.188-0.118 = 7.07.
C. Phapang ea mantlha ea bophara ba sekontiri ba likhoele tsa ka ntle tse sebelisoang hangata tsa 6g: (ho ipapisitsoe le molumo)
P 0.80-0.024 P 1.00-0.026 P1.25-0.028 P1.5-0.032
P1.75-0.034 P2-0.038 P2.5-0.042 P2.5-0.042
Foromo e kaholimo ea palo ea boleng ba d2-ges ke phapang ea boholo
Foromo e tlase ea palo ea boleng ba d2-ges-Td2 ke mamello ea boholo-holo-ho fapana.
Ka mohlala, boleng ba mamello ea 6g grade pitch diameter ea M8: boleng bo phahameng ba moeli: 7.188-0.028 = 7.16 le boleng bo tlaase ba moeli: 7.188-0.028-0.118 = 7.042.
Tlhokomeliso: ① Mamello a likhoele tse kaholimo a ipapisitse le likhoele tse mahoashe, 'me ho na le liphetoho tse ling molemong oa likhoele tse ntle, empa ke mamello e kholoanyane, ka hona taolo ho latela sena e ke ke ea feta moeli o boletsoeng, kahoo ha ba joalo. e tšoailoeng ka bonngoe ho tse ka holimo. tsoa.
② Ka tlhahiso ea 'nete, bophara ba molamu o entsoeng ka khoele ke 0.04-0.08 e kholoanyane ho feta bophara bo entsoeng ka khoele ho latela ho nepahala ha litlhoko tsa moralo le matla a extrusion a lisebelisoa tsa ho lokisa likhoele. Ena ke boleng ba bophara ba molamu o entsoeng ka khoele. Mohlala Bophara ba k'hamphani ea rona ea M8 kantle ho khoele 6g grade threaded polished rod ha e le hantle ke 7.08-7.13, e ka hare ho mefuta ena.
③ Ha ho nahanoa ka litlhoko tsa ts'ebetso ea tlhahiso, moeli o tlase oa moeli oa taolo ea bophara ba sekontiri sa tlhahiso ea 'nete ea likhoele tsa kantle ntle le kalafo ea mocheso le kalafo ea bokaholimo e lokela ho bolokoa maemong a 6h ka hohle kamoo ho ka khonehang.
2. Palo le mamello ea bophahamo ba molumo oa khoele ea ka hare ea 60° (GB 197/196)
a. Class 6H khoele ea sekontiri se bophahamo ba mamello (e thehiloeng holim'a molumo)
Moeli o kaholimo:
P0.8+0.125 P1.00+0.150 P1.25+0.16 P1.5+0.180
P1.25+0.00 P2.0+0.212 P2.5+0.224
Boleng bo tlase ba moeli ke "0",
Foromo e kaholimo ea palo ea boleng 2+TD2 ke boholo ba motheo + mamello.
Ka mohlala, bophara ba molumo oa khoele ea ka hare ea M8-6H ke: 7.188 + 0.160 = 7.348. Boleng ba moeli o kaholimo: 7.188 ke boleng bo tlase ba moeli.
b. Foromo ea lipalo bakeng sa bophara ba sekontiri ba sekontiri sa likhoele tsa ka hare e tšoana le ea likhoele tse ka ntle.
Ke hore, D2 = DP × 0.6495, ke hore, bophara ba sekontiri sa khoele ea ka hare bo lekana le bophara bo boholo ba khoele - pitch × coefficient value.
c. Phapang ea mantlha ea bophara ba molumo oa khoele ea 6G grade E1 (e ipapisitse le molumo)
P0.8+0.024 P1.00+0.026 P1.25+0.028 P1.5+0.032 P1.
P1.75+0.034 P1.00+0.026 P2.5+0.042 P2.5+0.042
Mohlala: M8 6G grade ka hare ho khoele sekontiri se metsi moeli o ka holimo: 7.188+0.026+0.16=7.374
Theko e tlase ea moeli: 7.188+0.026=7.214
Foromo e kaholimo ea boleng ba 2+GE1+TD2 ke boholo ba mantlha ba bophara ba sekontiri+ho kheloha+ho mamellana.
Foromo e tlase ea boleng ba 2+GE1 ke boholo ba bophara ba sekontiri + kheloha
3. Palo le mamello ea bophara bo boholo ba khoele ea kantle (GB 197/196)
a. Moeli o ka holimo oa 6h bophara bo boholo ba khoele e ka ntle
Ke hore, boleng ba bophara ba khoele. Ka mohlala, M8 ke φ8.00 'me moeli o ka holimo oa mamello ke "0″.
b. Mamello e tlase ea moeli oa bophara bo boholo ba 6h ea khoele e kantle (e ipapisitseng le molumo)
P0.8-0.15 P1.00-0.18 P1.25-0.212 P1.5-0.236 P1.75-0.265
P2.0-0.28 P2.5-0.335
Foromo ea lipalo bakeng sa moeli o ka tlase oa bophara bo boholo ke: d-Td, e leng tekanyo ea motheo ea mamello ea bophara bo boholo ba khoele.
Mohlala: Khoele ea ka ntle ea M8 6h boholo ba bophara bo boholo: moeli o ka holimo ke φ8, moeli o ka tlaase ke φ8-0.212=φ7.788
c. Palo le mamello ea 6g grade boholo bophara ba ka ntle khoele
Phapang ea litšupiso ea khoele ea kantle ea grade 6g (e ipapisitse le molumo)
P0.8-0.024 P1.00-0.026 P1.25-0.028 P1.5-0.032 P1.25-0.024 P1.75 -0.034
P2.0-0.038 P2.5-0.042
Foromo e kaholimo ea palo ea d-ges ke boholo ba mantlha ba bophara bo boholo ba khoele - kheloha ea litšupiso.
Foromo e tlase ea palo ea d-ges-Td ke boholo ba mantlha ba bophara bo boholo ba khoele - ho kheloha ha datum - mamello.
Mohlala: M8 khoele ea ka ntle 6g sehlopheng se seholo sa bophara ba moeli oa boleng bo phahameng φ8-0.028=φ7.972.
Moeli o ka tlase oa bolengφ8-0.028-0.212=φ7.76
Tlhokomeliso: ① Bophara bo boholo ba khoele bo khethoa ke bophara ba molamu o pholisitsoeng le tekanyo ea ho roala ha lehare la khoele, 'me boleng ba eona bo fapana ka tsela e fapaneng le bophara ba khoele e thehiloeng holim'a lisebelisoa tse tšoanang tse se nang letho le khoele. Ke hore, haeba bophara bo bohareng bo le nyane, bophara bo boholo bo tla ba bo boholo, 'me ka lehlakoreng le leng haeba bophara bo bohareng bo le boholo, bophara bo boholo bo tla ba bonyenyane.
② Bakeng sa likarolo tse hlokang phekolo ea mocheso le phekolo ea holim'a metsi, ho nahanoa ka ts'ebetso ea ts'ebetso, bophara ba khoele bo lokela ho laoloa ho ba ka holimo ho moeli o ka tlaase oa sehlopha sa 6h hammoho le 0.04mm nakong ea tlhahiso ea sebele. Ka mohlala, khoele e ka ntle ea M8 e ntse e phunya (rola) Sebaka se seholo sa mohala se lokela ho ba ka holimo ho φ7.83 le ka tlase ho 7.95.
4. Palo le mamello ea bophara ba khoele ea ka hare
a. Palo ea boholo ba khoele e ka hare ea bophara bo bonyenyane (D1)
Boholo ba khoele = boholo ba motheo ba khoele ea ka hare - pitch × coefficient
Mohlala: bophara ba motheo oa khoele ea ka hare M8 ke 8-1.25×1.0825 = 6.646875≈6.647
b. Palo ea mamello e nyane ea bophara (e thehiloeng ho sekontiri) le boleng bo nyane ba bophara ba khoele ea ka hare ea 6H
P0.8 +0. 2 P1.0 +0. 236 P1.25 +0.265 P1.5 +0.3 P1.75 +0.335
P2.0 +0.375 P2.5 +0.48
Moeli o ka tlaase oa ho kheloha mokhoa oa 6H grade ka hare ho khoele D1 + HE1 ke boholo ba motheo ba khoele e ka hare bophara bo nyane + kheloha.
Tlhokomeliso: Theko e tlase ea leeme la boemo ba 6H ke "0"
Foromo ea ho bala bakeng sa tekanyo e ka holimo ea moeli oa khoele ea ka hare ea grade 6H = D1 + HE1 + TD1, e leng boholo ba motheo ba bophara bo bonyenyane ba khoele ea ka hare + ho kheloha + ho mamellana.
Mohlala: Moeli o ka holimo oa bophara bo bonyenyane ba khoele ea ka hare ea 6H grade M8 ke 6.647+0 = 6.647
Moeli o ka tlaase oa bophara bo bonyenyane ba khoele ea ka hare ea 6H grade M8 ke 6.647 + 0 + 0.265 = 6.912
c. Palo ea kheloha ea motheo ea bophara bo bonyenyane ba khoele ea ka hare ea 6G grade (e thehiloeng holim'a molumo) le boleng bo nyane ba bophara.
P0.8 +0.024 P1.0 +0.026 P1.25 +0.028 P1.5 +0.032 P1.75 +0.034
P2.0 +0.038 P2.5 +0.042
Foromo bakeng sa moeli o ka tlaase oa bophara bo bonyenyane ba khoele ea ka hare ea sehlopha sa 6G = D1 + GE1, e leng boholo ba motheo oa khoele ea ka hare + ho kheloha.
Mohlala: Moeli o ka tlase oa bophara bo bonyenyane ba khoele ea ka hare ea 6G grade M8 ke 6.647 + 0.028 = 6.675
Foromo ea boleng ba moeli o ka holimo oa 6G grade M8 ka hare ho khoele bophara D1 + GE1 + TD1 ke boholo ba motheo ba khoele ea ka hare + kheloha + mamello.
Mohlala: Moeli o ka holimo oa bophara bo bonyenyane ba khoele ea ka hare ea 6G grade M8 ke 6.647 + 0.028 + 0.265 = 6.94
Tlhokomeliso: ① Bophahamo ba khoele e ka hare bo amana ka kotloloho le motsotso oa ho jara mojaro oa khoele e ka hare, kahoo e lokela ho ba ka har'a moeli o kaholimo oa sehlopha sa 6H nakong ea tlhahiso e se nang letho.
② Nakong ea ts'ebetso ea likhoele tse ka hare, bophara bo bonyenyane ba khoele e ka hare bo tla ba le tšusumetso ho sebetsa hantle ha sesebelisoa sa machining - pompo. Ho latela pono ea ts'ebeliso, bophara bo nyane, bo betere, empa ha ho nahanoa ka botlalo, bophara bo nyane bo sebelisoa ka kakaretso. Haeba e le karolo ea tšepe e entsoeng ka tšepe kapa aluminium, moeli o ka tlaase ho moeli o bohareng oa bophara bo nyane o lokela ho sebelisoa.
③ Bophahamo bo bonyenyane ba khoele ea ka hare ea 6G e ka kenngoa ts'ebetsong e le 6H ka tlhahiso e se nang letho. Boemo ba ho nepahala bo shebana haholo le ho koahela ha bophara ba khoele. Ka hona, ke bophara ba sekontiri sa pompo feela bo nkoang nakong ea ts'ebetso ea khoele ntle le ho nahana ka bophara bo bonyenyane ba lesoba le khanyang.
5. Mokhoa oa ho bala oa mokhoa o le mong oa indexing oa hlooho ea index
Mokhoa oa ho bala oa mokhoa o le mong oa indexing: n=40/Z
n: ke palo ea liphetohelo tseo hlooho e arolang e lokelang ho e fetola
Z: karolo e lekanang ea workpiece
40: Nomoro e tsitsitseng ea hlooho e arolang
Mohlala: Palo ea ho siloa ka mahlakore a mabeli
Kenyelletsa foromo: n=40/6
Palo: ① Nolofatsa karoloana: Fumana divisor e nyane haholo 2 'me u e arole, ke hore, arola palo le denominator ka 2 ka nako e le 'ngoe ho fumana 20/3. Ha e ntse e fokotsa karoloana, likarolo tsa eona tse lekanang li lula li sa fetohe.
② Bala karoloana: Ka nako ena, e ipapisitse le boleng ba lipalo le denominator; haeba nomoro le denominator li le kholo, bala.
20÷3=6(2/3) ke boleng ba n, ke hore, hlooho e arolang e lokela ho fetoloa makhetlo a 6(2/3). Ka nako ena, karoloana e fetohile palo e tsoakiloeng; karolo e felletseng ea palo e tsoakiloeng, 6, ke palo e arolang Hlooho e lokela ho fetoha makhetlo a 6 ka botlalo. Karolo ea 2/3 e nang le karoloana e ka ba 2/3 feela ea mothinya o le mong, 'me e tlameha ho baloa bocha ka nako ena.
③ Palo ea khetho ea poleiti ea indexing: Palo ea selikalikoe se ka tlase ho e le 'ngoe e tlameha ho phethahala ka thuso ea poleiti ea indexing ea hlooho ea indexing. Mohato oa pele oa ho bala ke ho atolosa karoloana ea 2/3 ka nako e le 'ngoe. Ka mohlala: haeba karoloana e atolosoa ka makhetlo a 14 ka nako e le 'ngoe, karoloana ke 28/42; haeba e atolosoa ka makhetlo a 10 ka nako e le 'ngoe, palo ke 20/30; haeba e atolosoa ka makhetlo a 13 ka nako e le 'ngoe, palo ke 26/39… Palo ea katoloso ea heke e arolang e lokela ho khethoa ho latela palo ea masoba a poleiti ea indexing.
Ka nako ena o lokela ho ela hloko:
① Palo ea masoba a khethiloeng bakeng sa indexing plate e tlameha ho aroloa ke denominator 3. Mohlala, mohlaleng o fetileng, likoti tse 42 ke makhetlo a 14 3, masoba a 30 ke makhetlo a 10 3, 39 ke makhetlo a 13 3…
② Katoloso ea karoloana e tlameha ho ba joalo hore palo le denominator li atolosoe ka nako e le 'ngoe' me likarolo tsa tsona tse lekanang li lule li sa fetohe, joalo ka mohlala.
28/42=2/3×14=(2×14)/(3×14); 20/30=2/3×10=(2×10)/(3×10);
26/39=2/3×13=(2×13)/(3×13)
Denominator 42 ea 28/42 e thathamisitsoe ho sebelisoa masoba a 42 a nomoro ea index; Numerator 28 e ea pele ka lesoba la boemo ba lebili le ka holimo ebe e potoloha ka lesoba la 28, ke hore, lesoba la 29 ke lesoba la boemo ba lebili la hajoale, 'me 20/30 e ho 30 'me lesoba la 10 kapa lesoba la 11 ke lesoba la boemo ba epicycle. 26/39 ke lesoba la boemo ba epicycle ka mor 39 a hore poleiti ea indexing ea masoba a 39 e fetoleloe pele 'me lesoba la 26 ke lesoba la 27.
Lisebelisoa tsa Xinfa CNC li na le litšobotsi tsa boleng bo botle le theko e tlase. Ho fumana lintlha, ka kopo etela:
Baetsi ba Lisebelisoa tsa CNC - Feme ea Lisebelisoa tsa CNC ea China le Bafani (xinfatools.com)
Ha u sila lisekoere tse tšeletseng (likarolo tse tšeletseng tse lekanang), u ka sebelisa masoba a 42, masoba a 30, masoba a 39 le masoba a mang a arotsoeng ka ho lekana ka 3 e le li-index: ts'ebetso ke ho fetola molamu ka makhetlo a 6, ebe o fetela pele ho boemo. masoba a lebili le ka hodimo. Ebe u fetola 28+1/ 10+1 / 26+! lesoba ho lesoba la 29/11/27 joalo ka lesoba la boemo ba epicycle.
Mohlala 2: Palo ea ho sila lisebelisoa tsa meno a 15.
Kenyelletsa foromo: n=40/15
Bala n=2(2/3)
Fetola li-circles tse 2 ka botlalo ebe u khetha masoba a indexing a arohanngoa ka 3, joalo ka 24, 30, 39, 42.51.54.57, 66, joalo-joalo. Ebe u fetela pele ho orifice plate 16, 20, 26, 28, 34, 36, 38 , 44 Kenya 1 lesoba, e leng masoba 17, 21, 27, 29, 35, 37, 39, le 45 e le masoba a boemo ba epicycle.
Mohlala 3: Palo ea indexing bakeng sa ho sila meno a 82.
Kenyelletsa foromo: n=40/82
Bala n=20/41
Ke hore: khetha feela poleiti ea index ea 41-hole, ebe u bula masoba a 20+1 kapa 21 holim'a lesoba le ka holimo la lebili e le lesoba la boemo ba lebili la hajoale.
Mohlala 4: Palo ea index ea ho sila meno a 51
Kenya foromo n=40/51. Kaha lintlha ha li khone ho baloa ka nako ena, u ka khetha lesoba ka ho toba, ke hore, khetha poleiti ea indexing ea masoba a 51, ebe u bula masoba a 51 + 1 kapa 52 holim'a lesoba le ka holimo la lebili e le lesoba la hona joale la boemo ba lebili. . Ke hore.
Mohlala 5: Palo ea indexing bakeng sa ho sila meno a 100.
Kenyelletsa foromo ea n=40/100
Bala n=4/10=12/30
Ka mantsoe a mang, khetha poleiti ea index ea masoba a 30, 'me u fetole masoba a 12+1 kapa a 13 holim'a lesoba le ka holimo la lebili e le lesoba la boemo ba lebili la hajoale.
Haeba lipoleiti tsohle tsa indexing li se na palo ea masoba a hlokahalang bakeng sa lipalo, mokhoa oa ho kopanya metsoako o lokela ho sebelisoa bakeng sa lipalo, o sa kenyelletsoeng mokhoa ona oa ho bala. Tlhahisong ea 'nete, ho sebelisoa li-gear hobbing, hobane ts'ebetso ea 'nete ka mor'a lipalo tsa indexing ea kompone ha e bonolo haholo.
6. Foromo ea lipalo bakeng sa hexagon e ngotsoeng ka selikalikoe
① Fumana mahlakore a tšeletseng a fapaneng a selikalikoe sa D (S top)
S=0.866D ke bophara × 0.866 (coefficient)
② Fumana bophara ba selikalikoe (D) ho tloha ka lehlakoreng le leng la hexagon (S surface)
D=1.1547S ke lehlakore le fapaneng × 1.1547 (coefficient)
7. Liforomo tsa lipalo bakeng sa mahlakore a tšeletseng a fapaneng le li-diagonal nakong ea sehlooho se batang
① Fumana lehlakore le fapaneng (S) la hexagon e kantle ho fumana lehlakore le fapaneng e
e=1.13s ke lehlakore le fapaneng × 1.13
② Fumana angle e fapaneng (e) ea hexagon e ka hare ho tloha ka lehlakoreng le leng (s)
e=1.14s ke lehlakore le fapaneng × 1.14 (coefficient)
③ Bala bophara ba thepa ea hlooho ea hukung e fapaneng (D) ho tloha ka lehlakoreng le leng (li) la hexagon e kantle
Bophara ba selikalikoe (D) bo lokela ho baloa ho latela (formula ea bobeli ho 6) mahlakoreng a tšeletseng a fapaneng (s-plane) le boleng ba eona ba setsi sa offset e lokela ho eketseha ka nepo, ke hore, D≥1.1547s. Chelete ea setsi sa offset e ka hakanngoa feela.
8. Mokhoa oa ho bala oa lisekoere tse ngotsoeng selikalikoe
① Fumana lehlakore le fapaneng la sekwere (S surface) ho tloha selikalikoe (D)
S=0.7071D ke bophara×0.7071
② Fumana selikalikoe (D) ho tloha mahlakoreng a fapaneng a lisekoere tse 'nè (S surface)
D=1.414S ke lehlakore le fapaneng×1.414
9. Litlhahlobo tsa lipalo bakeng sa mahlakore a mane a fapaneng le likhutlo tse fapaneng tsa ts'ebetso ea lihlooho tse batang
① Fumana angle e fapaneng (e) ea lehlakore le fapaneng (S) la lisekoere tse kantle
e=1.4s, ke hore, lehlakore le fapaneng (ma)×1.4 paramethara
② Fumana lehlakore le fapaneng (e) la mahlakore a mane a kahare (ma)
e=1.45s ke lehlakore le fapaneng (ma)×1.45 coefficient
10. Foromo ea lipalo ea molumo oa hexagonal
s20.866×H/m/k e bolela lehlakore le fapaneng×lehlakoreng le fapaneng×0.866× bophahamo kapa botenya.
11. Foromo ea lipalo bakeng sa molumo oa khoune e khutsufalitsoeng (khounu)
0.262H (D2+d2+D×d) ke 0.262×bophahamo×(bophara ba hlooho e kholo×bophahamo ba hlooho e kholo+hlooho e nyenyane ea hlooho+e nyenyane ea hlooho+e kholo ea hlooho×e nyenyane ea hlooho).
12. Foromo ea ho bala molumo oa 'mele o sieo oa spherical (joalo ka hlooho ea semicircular)
3.1416h2(Rh/3) ke 3.1416×bophahamo×bophahamo×(radius-height÷3).
13. Foromo ea lipalo bakeng sa ho sebetsa litekanyo tsa lipompo bakeng sa likhoele tse ka hare
1. Palo ea pompo e kholo bophara ba D0
D0=D+(0.866025P/8)×(0.5~1.3), ke hore, boholo ba motheo ba khoele e kholo ea bophara ba pompo+0.866025 pitch÷8×0.5 ho 1.3.
Tlhokomeliso: Khetho ea 0.5 ho isa ho 1.3 e lokela ho netefatsoa ho latela boholo ba molumo. Ha boleng ba molumo bo le boholo, coefficient e nyane e lokela ho sebelisoa. Ho fapana le moo,
Ha boleng ba molumo bo le nyane, coefficient e tla ba kholoanyane.
2. Palo ea bophara ba pompo ea molumo (D2)
D2=(3×0.866025P)/8 ke hore, tap pitch=3×0.866025×thread pitch÷8
3. Palo ea bophara ba pompo (D1)
D1=(5×0.866025P)/8 ke hore, tap diameter=5×0.866025×thread pitch÷8
14. Foromo ea lipalo bakeng sa bolelele ba lisebelisoa tse sebelisetsoang ho bopa lihlooho tse batang tsa libopeho tse fapaneng
Tse tsejoang: Foromo ea bophahamo ba selikalikoe ke bophara × bophara × 0.7854 × bolelele kapa radius × radius × 3.1416 × bolelele. Ke d2×0.7854×L kapa R2×3.1416×L
Ha ho baloa, boholo ba thepa e hlokahalang ke X÷diameter÷diameter÷0.7854 kapa X÷radius÷radius÷3.1416, e leng bolelele ba fepa.
Foromo ea kholomo=X/(3.1416R2) kapa X/0.7854d2
X ka foromo e emela palo e hlokahalang ea thepa;
L e emela boleng ba 'nete ba ho fepa;
R/d e emela radius ea sebele kapa bophara ba thepa e feptjoang.
Nako ea poso: Nov-06-2023
