Egweri bụ usoro ịcha workpiece na grinder na-egweri wheel dị ka ọnwụ ngwá ọrụ.
Njirimara nke usoro a bụ ndị a:
1. N'ihi nnukwu ike siri ike na nguzogide okpomọkụ nke abrasives wheel na-egweri, ịhịa aka n'ahụ nwere ike ịhazi ihe na ihe siri ike dị elu, dị ka ígwè siri ike, cemented carbide, wdg.
2. The e ji mara nke egweri wheel na egweri igwe chọpụta na egweri usoro usoro nwere ike ji mee ihe dị ka edo micro-ịcha, n'ozuzu ap = 0.001 ~ 0.005mm;ọsọ egweri dị nnọọ elu, n'ozuzu ruo v=30 ~ 50m/s;igwe egweri nwere ezigbo isi ike;A na-eji nnyefe hydraulic eme ihe, yabụ na-egweri nwere ike nweta nhazi nhazi dị elu (IT6 ~ IT5) na obere ihe mgbagwoju anya (Ra = 0.8 ~ 0.2um).Egweri bụ otu n'ime ụzọ isi edozi akụkụ.
3. Ọnọdụ okpomọkụ dị na mpaghara egweri dị oke elu n'ihi esemokwu siri ike.Nke a ga-eme ka nchekasị na nrụrụ nke workpiece, na ọbụna na-eme ka elu ọkụ nke workpiece.Ya mere, a ghaghị ịgbanye nnukwu mmiri oyi n'ime usoro egweri iji belata okpomọkụ.Coolant na-arụkwa ọrụ dị ka mgbawa iwepụ na mmanu mmanu
4. The radial ike n'oge egweri dị nnọọ ukwuu.Nke a ga-eme ka ndị na-agbanwe ohere nke igwe ngwá ọrụ-egweri wheel-workpiece usoro, nke mere na n'ezie omimi nke ịkpụ bụ obere karịa nominal omimi.Ya mere, mgbe a na-egweri ihe, e kwesịghị ịgbanyụ onye na-egbu ihe ahụ iji kpochapụ njehie.
5. Mgbe abrasive na-egweri na-egbuke egbuke, ike na-egweri na-abawanyekwa, nke na-eme ka ihe ndị ahụ na-eme ka ọkpụkpụ na-agbaji ma ọ bụ daa ma mee ka ọkpụkpụ dị nkọ pụta.Njirimara a na-aghọ "ịkọ onwe ya".Ịdị nkọ nke onwe na-eme ka egweri na-arụ ọrụ nke ọma na oge ụfọdụ, ma mgbe oge ụfọdụ na-arụ ọrụ, a ga-edozi ya na aka iji zere ịma jijiji, mkpọtụ na mmebi nke elu elu nke workpiece kpatara site na mmụba nke ike igwe ihe.
wheel egweri
Ụkwụ egweri bụ ihe eji egbutu ihe maka egweri.Ọ na-agụnye ọtụtụ obere ihe na-eme ka abrasives na ihe nkedo siri ike, bụ nke e ji ọtụtụ ihe ndị nwere oghere mee.Abrasive ahụ ozugbo na-ebu ọrụ ịkpụ, ga-adị nkọ ma nwee ike dị elu, nguzogide okpomọkụ na ụfọdụ ihe siri ike.Abrasives ndị a na-ejikarị eme ihe bụ alumina (nke a makwaara dị ka corundum) na silicon carbide.
Alumina
Alumina Abrasives nwere isi ike dị elu, ịdị mma dị mma ma dabara adaba maka igwe igwe.Silicon carbide abrasives nwere ike siri ike dị elu, dị nkọ ma dịkwa mma, mana ha na-agbaji ma dabara adaba maka igwe nkedo na carbide cimented.
Otu wheel abrasive egweri, n'ihi na ya dị iche iche ọkpụrụkpụ, elu roughness na nhazi arụmọrụ nke workpiece mgbe nhazi dị iche iche.A na-eji abrasive na-adịghị ahụkebe eme ihe maka igwe ihe siri ike.Nke kacha mma na abrasive bụ, na coarser na abrasive bụ nta urughuru size bụ.
Binders na-arụ ọrụ dị ka abrasives njikọ.
A na-ejikarị ihe nkedo seramiiki eme ihe, nke na-esote resin.Nhọrọ ihe nkedo dị iche iche na-emetụta nguzogide corrosion, ike, nguzogide okpomọkụ na ike nke wiil egweri.
Ka njikọ abrasive na-esiwanye ike, otú ahụ ka ọ na-esiwanye ike ịdapụ na wiil egweri.Nke ahụ bụ, ike nke wiil na-egweri na-ezo aka n'ókè nke ihe ndị na-ekpo ọkụ na-eme ka ọkpụkpụ na-adaba n'okpuru ihe ndị agha mpụga.Ọ dị mfe ịdapụ ka a na-akpọ nro, ma ọzọ ka a na-akpọ ike.
Isi ike nke wiil egweri na abrasive bụ echiche abụọ dị iche iche.N'elu nke egweri workpiece bụ nro, na nsọtụ (ọnụ) nke abrasive ahụ adịghị mfe iyi, nke mere na abrasive ahụ nwere ike iji ogologo oge, ya bụ, egweri wheel na ike bonding ( wheel egweri na elu hardness) nwere ike họrọ.N'ụzọ megidere nke ahụ, wheel na-egweri na ala siri ike dị mma maka ịkwanye workpiece na ike siri ike.
Iji hụ na nchekwa, a ga-enyocha wiil ndị na-egweri tupu echichi, ọ dịghịkwa ihe mgbagwoju anya na ntụpọ ndị ọzọ.Iji mee ka wiil ndị na-egweri na-arụ ọrụ nke ọma, ekwesịrị ịme ule nguzozi dị ike tupu ejiri ya.
Mgbe wiil na-egweri na-arụ ọrụ ruo oge ụfọdụ, a ga-egbochi oghere ndị dị n'elu site na irighiri ihe, akụkụ dị nkọ nke abrasive ga-ada ụda, na ọdịdị geometric mbụ ga-agbagọ.Ya mere, ọ dị mkpa iji ewepụtụ iji weghachi ikike ịkpụ na geometry ziri ezi.Ekwesịrị iji mkpịsị diamond kpụzie wiil egweri.
Nhazi na mmegharị igwe nke igwe egweri elu
E nwere ọtụtụ ụdị nke grinders, dị ka elu grinder, cylindrical grinder, esịtidem grinder, eluigwe na ala cylindrical grinder (nwekwara ike egweri esịtidem oghere), gia grinder, eri grinder, ndu okporo ígwè grinder, centerless grinder (egweri mpụga gburugburu) na ngwá ọrụ grinder ( ihe egweri).A na-ewebata grinder elu na mmegharị ya ebe a.
1. Ọdịdị nke elu grinder (na-ewere M7120A dị ka ihe atụ: M-egweri ụdị igwe ngwá ọrụ; 71-horizontal axis oge table ụdị n'elu grinder; 20-arụ ọrụ table obosara 200 mm; A-nke mbụ isi mma).
(1) Ngwunye igwe na-egweri - Wụnye wiil na-egweri ma mee ka wiil ahụ tụgharịa na nnukwu ọsọ.Ogbe ụkwụ na-egweri nwere ike ịgafe n'okporo ụzọ ntụzịaka dovetail nke oche na-amị amị na aka ma ọ bụ hydraulically na mkpochapụ transverse.
(2) Oche slide - wụnye igwe ihe na-egweri na draịvụ igwe na-egweri ka ọ na-agbago na ala n'akụkụ okporo ụzọ kọlụm.
(3) Kọlụm - na-akwado oche sliding na egweri wheel egweri.
(4) Workbench - Ntinye nke workpiece na mmegharị ahịrị ahịrị na-emegharị site na sistemụ hydraulic.
(5) Akwa - na-akwado worktable na ịwụnye akụkụ ndị ọzọ.
(6) Usoro oyi - inye coolant (mmanụ saponified) na mpaghara egweri.
(7) Usoro nnyefe nke hydraulic, nke nwere:
1) Ngwa ike - nfuli mmanụ, hydraulic nnyefe usoro nrụgide mmanụ;
2) Actuator - cylinder, na-anyagharị mmegharị nke worktable na ihe ndị ọzọ;
3) Ihe njikwa - maka ụdị valvụ niile, nrụgide njikwa, ọsọ, ntụziaka, wdg.
4) Ihe enyemaka, dị ka tank mmanụ, ihe nrịbama, wdg.
Tụnyere n'ibu nnyefe, hydraulic nnyefe nwere uru nke ire nnyefe, bufee nchedo na stepless ọsọ ụkpụrụ na a dịgasị iche iche.
2. Ụgbọ elu na-egweri ihe
(1) Main ngagharị - elu-ọsọ na-agbagharịgharị ngagharị nke egweri wheel.
(2) Ntughari nri
1) Nri ogologo oge - worktable na-eme ka mmegharị ahịrị na-emegharị ahụ nke workpiece;
2) vetikal ndepụta - ije nke egweri wheel na omimi nke workpiece;
3) Transverse ndepụta- mkpochapụ ije nke egweri wheel tinyere ya axis.
Oge nzipu: Mee-23-2019