Terminal Pwm Tsim, Kev Kawm Yog Qhov Tseem Ceeb

1. Terminal pwm tsim kev txiav txim siab

Cov khoom lag luam paub tab ntawm cov pwm pwm feem ntau muaj ob yam ntxwv: cov zis loj thiab lub sijhawm hloov kho ceev. Raws li cov yam ntxwv ntawm cov khoom, thaum tsim lub davhlau ya nyob twg pwm, cov qauv pwm thiab cov tswv yim yuav tsum tau ua ke los ntawm ob qho no. Cia kuv qhia kuv tus kheej txoj kev xav:

1. Thaum tsim thiab nteg tawm lub davhlau ya nyob twg pwm, sim txuag cov khoom kom ntau li ntau tau. Raws li ib txwm muaj, Pitch cov khoom lossis cov neeg siv khoom ntawm cov khoom siv tau raug txiav txim siab thiab hloov tsis tau. Yog li ntawd, xav txog cov khoom siv dav, cov khoom siv ib leeg tuaj yeem ua ob kab lossis ob qho khoom siv tuaj yeem muab ob npaug rau. los txhim kho kev siv cov khoom siv.

2. Thaum tsim pwm, sim ua ntau yam txheej txheem hauv tib kauj ruam, txo qhov ntev ntawm pwm kom ntau li ntau tau, thiab tshem tawm cov kev ua yuam kev uas tshwm sim los ntawm kev ua haujlwm raug.

3. Rau cov neeg uas yuav tsum tau nruj dabtsi yog khoov lub kaum sab xis / loj, yuav tsum tau hloov cov kauj ruam ntau li ntau tau. Thaum hloov kho, koj tsuas yog yuav tsum tau kho ntawm lub punch yam tsis muaj kev cuam tshuam cov pwm.

Feem ntau, nws yog ib qho tsim nyog los ua kom lub stamping ceev thiab seem stability, thiab txo tus nqi ntawm ib yam khoom. Cov txiaj ntsig ntawm ib qho khoom lag luam ntawm cov khoom siv davhlau ya nyob twg yog qhov tsawg, thiab nws nyob ntawm cov zis siab kom nce cov txiaj ntsig tag nrho.

2. Kev kho cov pluaj deformation ntawm lub davhlau ya nyob twg pwm

Thaum tsim, sib sau ua ke thiab kho cov pwm pwm, khi deformation yog ib qho tseem ceeb heev. Muaj peb hom lace deformations: lace scimitar, lace twist, thiab lace nab. Nyob rau hauv qhov tseeb, lub lace nab zoo li ib tug ua ke ntawm scimitar thiab twist. Hauv lus Askiv nws yog (Cabriole, Twist thiab Snake).

Muaj peb txoj hauv kev los kho Cabriole. Ib qho yog los tiv thaiv nws los ntawm kev tshwm sim thiab nias nws qhov twg nws tshwm. Qhov thib ob yog nias nyob rau hauv qhov opposite kev taw qhia tam sim ntawd tom qab nws tshwm. Qhov thib peb yog nias thiab kho cov khoom siv sawb thaum nws tab tom yuav tawm ntawm pwm, kom nws tuaj yeem deform rau offset tus scimitar.

1. Puas yog vim qhov layout yog ib tus neeg nqa khoom? Yog tias yog li ntawd, koj tuaj yeem ntxiv ib qho stopper rau ntawm qhov tsis ncaj ncees lawm, lossis koj tuaj yeem sim ua ntej los ntawm kev nce siab ntawm lub phaj siab.

2. Xyuas thiab kho lub feeder.

3. Xyuas seb R lub kaum sab xis ntawm cov txiv neej thiab poj niam pwm ntawm qhov khoov yog qhov loj thiab seb lub zog ntawm ob sab yog sib npaug (yog tias nws yog U-shaped khoov).

4. Nyob rau hauv luv luv, lub ntsiab yog vim li cas rau qhov tshwm sim yog qhov teeb meem ntawm "lub zog"

Nyob rau hauv lub davhlau ya nyob twg pwm, tshwj xeeb tshaj yog nyob rau hauv automotive davhlau ya nyob twg pwm, ntau khoov kuj yog lub ntsiab ua rau lace deformation. Lub zog muaj zog hauv zos, kev hloov kho mechanisms, tsim nyog khoov cov kauj ruam thiab cov qauv yog txhua yam tseem ceeb.

3. IC davhlau ya nyob twg pwm

IC txhuas ncej yog cov hlau tseem ceeb ntawm cov khoom siv hluav taws xob thiab cov ntaub ntawv xov xwm. Nrog rau kev loj hlob ntawm semiconductor thiab cov ntaub ntawv kev lag luam, nws cov kev xav tau ntawm kev lag luam yog loj thiab loj hlob sai. IC txhuas thav duab stamping pwm sawv cev rau cov pwm nrog qhov siab tshaj plaws. Lawv tsis tsuas yog yuav tsum tau siv tshuab tsim pwm, tab sis kuj muaj cov cuab yeej ua haujlwm siab (optical projection grinders thiab xaim txiav hluav taws xob cov tshuab yog cov cuab yeej tseem ceeb).

1. Cov lus qhia txog cov txheej txheem ua tus ncej

① IC txheej txheem piav qhia

② Lead ncej ntsig txog technologies

A. Kub hlau sib txuas (Wire bonding) Cov xov hlau kub yog qhov me me, nrog txoj kab uas hla ntawm 30 μm. Cov pwm rau kos cov hlau kub tam sim no yog tsim los ntawm tsis muaj leej twg nyob hauv Suav teb.

B. Cov khoom siv lead ua

IC lead thav duab cov ntaub ntawv feem ntau suav nrog hlau-nickel alloy (tseem hu ua 42 alloy vim hais tias cov ntsiab lus npib tsib xee suav rau 42%) thiab cov tooj liab-raws li alloys (oxygen-dawb tooj liab, deoxidized tooj liab). Cov qub tso nyiaj rau kwv yees li 20% ntawm kev siv, thaum tom kawg suav txog li 80%.

③ Lead thav duab ntau lawm txoj kev thiab tiam sis

Muaj ob txoj hauv kev los tsim cov hlau lead thav duab: stamping ua thiab etching ua. Ntawm lawv, stamping processing yog tam sim no lub ntsiab. Vim tias qhov kev thov nce ntxiv rau high-pin suav lead thav duab, daim ntawv thov ntawm etching ua tau maj mam tau txais kev saib xyuas ntxiv.

2. Cov ntsiab lus tseem ceeb ntawm txhuas ncej stamping ua

① Lub hauv ntej kawg ntawm sab hauv ntawm cov hlau lead yuav tsum siab flatness, thiab lub tiaj tiaj yog tsawg kawg yog 0.1 hli (ntau tshaj peb npaug ntawm txoj kab uas hla ntawm cov hlau kub), yog li yuav tsum tau siv nyiaj npib.

② Qhov chaw ntawm txhuas txhuas sab hauv yuav tsum tau khaws cia kom raug thiab txawm. Cov txheej txheem imprinting yuav txo qhov chaw no, yog li qhov imprinting qhov tob yuav tsum tau tswj thiab lub lateral twist ntawm cov hlau lead yuav tsum tau suppressed.

③ Txoj hauj lwm qhov tseeb ntawm cov lus qhia tus pin sab hauv yuav tsum tau ua kom raug los pab txhawb kev txhim khu kev qha ntawm cov hlau sib txuas hauv qhov project tom ntej. Txoj kev sib raug zoo yog txhawm rau xuas nrig ntaus tus pin hauv phau ntawv qhia thawj zaug thiab tom qab ntawd xuas nrig ntaus tus pin sab nraud. Lub stamping txheej txheem yuav tsum tau tsim kom zoo, nrog rau cov txheej txheem stamping. Ib theem kho kho tau yog tsim los tswj kev sib txawv ntawm cov thawj coj tus ncej txhuas ua haujlwm thaum lub sijhawm ua stamping.

④ Lub tiaj tus ntawm cov hlau lead yuav tsum tau ua kom muaj kev ruaj ntseg thiab smoothness thaum lub sij hawm kev thauj mus los thiab xaim sib txuas hauv cov haujlwm tom ntej. Lub tswv yim sib xws yog tias thaum xuas nrig ntaus cov hlau lead pins, qhov nyiaj rov qab yuav tsum tau txo qis kom tsawg thiab cov kev taw qhia ntawm kev rov ua dua yuav tsum zoo ib yam. Tsis tas li ntawd, cov khoom siv lead ua yuav tsum tau ua rau cov txheej txheem kev ntxhov siab ua ntej xuas nrig ntaus.

⑤ Deformations xws li distortion los yog offset ntawm cov hlau lead pins nyob rau hauv cov hlau lead ncej yuav tsum tau khaws cia kom tsawg kawg nkaus kom pab txhim khu kev qha cov hauj lwm tom ntej. Qhov kev daws teeb meem yog ua tib zoo mloog rau lub zog siab tsim ntawm cov ntawv xovxwm hauv pwm, teeb pom kev zoo pwm qhov sib txawv thiab tswj xyuas qhov zoo tshaj plaws ntawm kev txiav ntug ntawm cov khoom siv (punch thiab niam pwm), thiab cov pwm qhia cov cuab yeej muaj siab rigidity.

3. Cov ntsiab lus tseem ceeb hauv cov hlau lead thav duab stamping tuag tsim

① Pwm clearance

Cov hlau lead thav duab stamping tuag qhov sib txawv yog 3 mus rau 5% ntawm lub phaj thickness (3% rau tooj liab alloy, 4 mus rau 5% rau 42 alloy). Qhov sib txawv ntawm cov ntawv xovxwm thiab cov punch yuav me dua thiab yuav tsum tsawg dua 50% ntawm qhov sib txawv tuag.

② Nias phaj

Lub zog nias ntawm lub phaj xovxwm yuav tsum tau ua kom tsis txhob muaj kev cuam tshuam los ntawm cov txheej txheem stamping thiab txhim kho qhov zoo ntawm qhov xuas nrig ntaus ntawm cov lus qhia tus pin. Txoj hauj lwm nias yuav tsum tau concentrated nyob ze ntawm lub punching load cheeb tsam (piv txwv li, lub punch qhia ib feem). Lub zog nias ntawm lub phaj xovxwm Cov qauv tsim ntawm cov khoom siv yog siv los ua kom lub zog hauv zos thiab cov khoom siv rau kev ntxhov siab kom tsis txhob muaj kev cuam tshuam los yog rov ua dua.

③ Punching ua ntu zus

Tsim kom raug xuas nrig ntaus ua ntu tsim yog txoj hauv kev zoo tshaj plaws los txhim kho cov punching deformation lossis distortion ntawm cov hlau lead pins. Nws yog ib qho nyuaj los kho cov punching deformation los yog distortion ntawm cov hlau lead pins los ntawm kev ua haujlwm annealing tom ntej. Cov hauv qab no yog cov hauv paus ntsiab lus rau kev txiav txim siab qhov punching sequence:

A. Tuag txiav lub puab qhia tus pin ua ntej, tom qab ntawd xuas nrig ntaus tus pin qhia tus pin.

B. Koj tuaj yeem xuas cov hlau lead luv ua ntej thiab tom qab ntawd cov hlau lead ntev, lossis koj tuaj yeem xuas cov hlau lead ntev ua ntej thiab tom qab ntawd cov hlau lead luv. Nco ntsoov tsis txhob siv cov txheej txheem hlais ntawm cov hlau lead luv thiab ntev txhuas. daim ntawv.

④ Niam pwm daim ntawv

Cov duab ntawm tus tswv pwm txais yuav ncaj seem thawb-rub hom lossis tag nrho lub laub-rub tsim; nyob ntawm txoj kev ua, tus tswv pwm zoo txais yuav ncaj seem thawb-rub hom lossis puv laub-rub hom tsim. Qhov ntev ntawm qhov ncaj seem ntawm qhov qub yog tsim los ua 3 hli, lub kaum sab xis thawb tawm yog 1/2 degree, thiab txoj kev ua haujlwm yog sib tsoo. Lub kaum sab xis ntawm lub tom kawg yog teem, thiab txoj kev ua yog hlau-txiav hluav taws xob tawm machining.

⑤ Kho qhov chaw nres tsheb tsim

Txhawm rau kom muaj zog ntawm cov pwm los yog muab qhov chaw kho kom txaus rau qhov tuag, qhov chaw nres tsheb khoob yog ib qho tseem ceeb ntawm kev tsim cov tuag tas mus li. Tsis tas li ntawd, txhawm rau txhawm rau txhawm rau qhov distortion lossis deformation ntawm cov txhuas cov txheej txheem thaum lub sijhawm nres tsheb hloov kho yog qhov tseem ceeb uas yuav tsum tau txiav txim siab.

4. Pwm rigidity thiab kev taw qhia

① Cov txheej txheem kev taw qhia pwm siv cov kev taw qhia dual, uas yog, cov lus qhia tseem ceeb (Main guide post) thiab cov ntawv qhia pab pawg (Sub guide post) yog siv ua ke.

② Tus naj npawb ntawm cov ncej qhia sab nrauv yog tus qauv tsim. Thaum cov pwm loj tsawg dua 600 hli, nws yog tsim los nrog rau 6 tus ncej sab nrauv. Thaum cov pwm loj loj dua 800 hli, nws yog tsim los nrog yim tus ncej sab nrauv.

③ Siv cov kev taw qhia cov menyuam uas muaj kev nruj heev los txhim kho kev taw qhia kom raug thiab nruj.

④ Cov cuab yeej qhia sab hauv tau txais cov kev coj ua tiav (tseem hu ua peb-platen tag nrho cov txheej txheem), uas yog, cov lus qhia sab hauv dhau los ntawm cov punch phaj, nias phaj thiab niam phaj.

5. IC txhuas thav duab stamping tuag ua tshuab tiam sis

Lead ncej stamping tuag thov trend

a. Pwm ua me me

Vim txoj kev loj hlob ntawm hlau hluav taws xob tawm machining (WEDM) tshuab, machining raug thiab nto zoo lawm. Yog li ntawd, nws maj mam siv WEDM txoj kev los ua cov niam module los yog nias phaj rau hauv lub block es tsis txhob sib tsoo cov txheej txheem, uas yuav txo tau tus naj npawb ntawm stamping engineering chaw nres tsheb. Tus naj npawb ntawm cov pwm (qhov tsim ntawm qhov chaw khoob tuaj yeem txo qis) txo qhov loj ntawm pwm. Txhawm rau kom phim cov kev qhia tshwj xeeb ntawm cov tshuab xuas nrig ntaus tshuab, qhov loj ntawm cov pwm pwm rau cov hlau lead thav duab nrog ntau tus pins (ntau tshaj 100 tus pins) ncav cuag qhov ntev ntawm ntau tshaj 1200 hli, yog li cov txheej txheem ntau lawm yuav tsum tau txais cov ntawv xuas nrig ntaus. serial kev npaj hom.

b. Pwm Cheebtsam tau dhau los ua me thiab meej dua

Noj cov hmoov txhuas rau cov hlau lead thav duab nrog ntau tus pin suav ua piv txwv, cov qauv hauv cov duab thiab qhov loj me yog mus rau qhov me me sab nrauv, luv luv hniav ntev, thiab cov punches nyias, thaum lawv qhov tseeb tiam sis mus rau qhov siab precision thiab qis ua cov nqi. Nto roughness nce. Txhawm rau ua tiav qhov kev ua haujlwm siab (qhov ntev ntawm qhov siab ± 2 μm lossis tsawg dua) thiab qhov tsis zoo ntawm qhov tsis zoo (0.3 μm Ra lossis tsawg dua), nws yuav tsum tau siv cov cuab yeej sib tsoo siab thiab tsis tshua muaj roughness hlau. - txiav cov tshuab hluav taws xob tawm.

6. Cov thev naus laus zis tseem ceeb rau cov hlau lead thav duab stamping tuag ua tiav

① High precision / nto roughness sib tsoo

A. Optical projection sib tsoo.

B. High-speed reciprocating sib tsoo.

C. Sib tsoo cov cuab yeej pwm thiab cov khoom siv.

D. Daim iav polishing (Lapping).

②Wire hluav taws xob tawm machining (WEDM)

A. Roj xaim hluav taws xob tawm machining.

B. Dej-hom hlau txiav hluav taws xob tawm machining.

C. Tsawg-deterioration txheej hlau-txiav hluav taws xob tawm machining.

③Mould cov ntaub ntawv thiab kev siv tshuab

A. Pwm kho cua sov tshuab.