Hoʻopiha piha i ka Mīkini CMM a me ke alakaʻi ana

He aha ka mīkini CMM?

E noʻonoʻo i kahi mīkini ʻano CNC hiki ke hana i nā ana kikoʻī loa ma ke ʻano ʻakomi loa.ʻO ia ka hana a nā Mīkini CMM!

ʻO ka CMM ke kū nei no ka "Mekini Ana Hoʻohui".ʻO lākou paha nā mea ana 3D hope loa e pili ana i kā lākou hui pū ʻana o ka maʻalahi, pololei, a me ka wikiwiki.

Nā noi o nā mīkini ana hoʻonohonoho

He mea waiwai nā Mīkini ana ʻo Coordinate i kēlā me kēia manawa e pono ai ke ana pololei.A ʻoi aku ka paʻakikī a i ʻole ka nui o nā ana, ʻoi aku ka maikaʻi o ka hoʻohana ʻana i kahi CMM.

Hoʻohana maʻamau nā CMM no ka nānā ʻana a me ka hoʻokele maikaʻi.ʻO ia hoʻi, hoʻohana ʻia lākou e hōʻoia i ka ʻāpana i kūpono i nā koi a me nā kikoʻī o ka mea hoʻolālā.

Hiki ke hoohana ia lakouʻenekini hoʻohulinā ʻāpana e kū nei ma ke ana pololei ʻana i ko lākou mau hiʻohiʻona.

Na wai i haku i nā Mīkini CMM?

Ua kūkulu ʻia nā Mīkini CMM mua e Ferranti Company o Scotland i ka makahiki 1950.Pono lākou no ke ana pololei ʻana i nā ʻāpana i ka ʻoihana aerospace a me nā ʻoihana pale.ʻO nā mīkini mua loa he 2 mau koi o ka neʻe.Ua hoʻokomo ʻia nā mīkini axis 3 i ka makahiki 1960 e DEA o Italia.Ua hele mai ka mana kamepiula i ka 1970 mua, a ua hoʻolauna ʻia e Sheffield o USA.

Nā ʻano o nā Mīkini CMM

ʻElima ʻano o ka mīkini ana coordinate:

  • ʻAno CMM: Ma kēia hoʻolālā, ʻo ka mea maʻamau, holo ke poʻo CMM ma kahi alahaka.Holo kekahi ʻaoʻao o ke alahaka ma luna o ke kaʻaahi ma luna o ka moena, a ʻo kekahi ʻaoʻao e kākoʻo ʻia ma luna o kahi cushion ea a i ʻole kekahi ala ʻē aʻe ma luna o ka moena me ka ʻole o ke kaʻa alakaʻi.
  • Cantilever CMM: Kākoʻo ka cantilever i ke alahaka ma ka ʻaoʻao hoʻokahi.
  • Gantry CMM: Hoʻohana ka gantry i kahi ala alakaʻi ma nā ʻaoʻao ʻelua, e like me ka CNC Router.ʻO kēia nā CMM nui loa, no laila pono lākou i ke kākoʻo hou.
  • Horizontal Arm CMM: E kiʻi i kahi cantilever, akā me ke alahaka holoʻokoʻa e neʻe ana i luna a i lalo i ka lima hoʻokahi ma mua o kona axis ponoʻī.ʻO kēia nā CMM pololei loa, akā hiki iā lākou ke ana i nā ʻāpana lahilahi nui e like me nā kino kaʻa.
  • ʻAno lima lima CMM: Hoʻohana kēia mau mīkini i nā lima i hui pū ʻia a hoʻonohonoho lima ʻia.Ma mua o ke ana pololei ʻana iā XYZ, helu lākou i nā hoʻonohonoho mai ke kūlana rotary o kēlā me kēia hui a me ka lōʻihi i ʻike ʻia ma waena o nā hui.

Loaʻa i kēlā me kēia mea nā pono a me nā pōʻino ma muli o ke ʻano o nā ana e hana ʻia.ʻO kēia mau ʻano e pili ana i ke ʻano o ka mīkini i hoʻohana ʻia e hoʻonohonoho i kānaʻimipili i ka hapa e ana.

Eia kahi papa ʻaina e kōkua i ka hoʻomaopopo ʻana i nā pono a me nā pōʻino:

ʻAno CMM Ka pololei ʻoluʻolu Hoʻohana maikaʻi ʻia no ke ana ʻana
Alahaka Kiʻekiʻe Kauwaena ʻO nā ʻāpana liʻiliʻi e koi ana i ka pololei kiʻekiʻe
Cantilever Kiekie loa Haʻahaʻa ʻO nā ʻāpana liʻiliʻi e koi ana i ka pololei kiʻekiʻe loa
Lima ʻeleʻele Haʻahaʻa Kiʻekiʻe ʻO nā mea nui e koi ana i ka pololei haʻahaʻa
Gantry Kiʻekiʻe Kauwaena Nā ʻāpana nui e koi ana i ka pololei kiʻekiʻe
ʻAno lima lima lawe lima Haʻahaʻa loa Kiekie loa ʻO ka portability ka mea nui loa.

Hoʻonoho maʻamau ʻia nā ʻōkuhi ma nā anana 3–X, Y, a me Z. Eia naʻe, hiki i nā mīkini ʻoi aku ka maʻalahi ke ʻae i ke kihi probes e hoʻololi ʻia e hiki ke ana i nā wahi i hiki ʻole i ka probe ke hiki.Hiki ke hoʻohana ʻia nā pākaukau Rotary e hoʻomaikaʻi i ka hoʻokokoke ʻana i nā hiʻohiʻona like ʻole.

Hana pinepine ʻia nā CMM me ka granite a me ka aluminika, a hoʻohana lākou i nā ʻea ea

ʻO ka probe ka mea ʻike e hoʻoholo ai i kahi o ka ʻili o ka ʻāpana ke hana ʻia kahi ana.

Aia nā ʻano probe:

  • Mechanical
  • Optical
  • Laser
  • Mālamalama Keʻokeʻo

Hoʻohana ʻia nā Mīkini Ana Hoʻohui i ʻekolu mau ala maʻamau:

  • Nā Keʻena Mana Mana: Eia ka mea maʻamau i mālama ʻia i loko o nā lumi maʻemaʻe i mālama ʻia i ke aniau e hoʻonui i ko lākou pololei.
  • Papa Kūʻai: Eia nā CMM i lalo i waena o nā Mīkini CNC e maʻalahi i ka hana ʻana ma ke ʻano he ʻāpana o ka hale hana me ka liʻiliʻi o ka huakaʻi ma waena o ka CMM a me ka mīkini kahi e hana ʻia ai nā ʻāpana.ʻAe kēia i nā ana e hana mua ʻia a hiki i ka manawa pinepine e alakaʻi i ka mālama ʻana ke ʻike koke ʻia nā hewa.
  • Hiki ke lawe: He maʻalahi ka neʻe ʻana o nā CMM paʻa.Hiki ke hoʻohana ʻia ma ka Papa Kūʻai a i ʻole e lawe i kahi kahua mamao mai ka hale hana e ana i nā ʻāpana o ke kula.

Pehea ka pololei o nā mīkini CMM (CMM Accuracy)?

ʻOkoʻa ka pololei o nā Mīkini Ana Hoʻohui.ʻO ka maʻamau, ke ʻimi nei lākou i ka pololei micrometer a ʻoi aku ka maikaʻi.Akā ʻaʻole maʻalahi ia.No ka mea hoʻokahi, hiki i ka hewa ke hana i ka nui, no laila hiki ke kuhikuhi ʻia ka hewa ana o CMM ma ke ʻano he kumu pōkole e komo ana ka lōʻihi o ke ana ma ke ʻano he loli.

No ka laʻana, ua helu ʻia ʻo Hexagon's Global Classic CMM ma ke ʻano he CMM kumu kūʻai kūpono, a kuhikuhi i kona pololei e like me:

1.0 + L/300um

Aia kēlā mau ana i loko o nā microns a ua kuhikuhi ʻia ʻo L ma mm.No laila e ʻōlelo mākou e ana mākou i ka lōʻihi o kahi hiʻohiʻona 10mm.ʻO ke kumu hoʻohālikelike ʻo 1.0 + 10/300 = 1.0 + 1/30 a i ʻole 1.03 microns.

ʻO ka micron ka hapahā tausani o ka mm, ma kahi o 0.00003937 iniha.No laila, ʻo ka hewa ke ana ʻana i kā mākou lōʻihi 10mm he 0.00103 mm a i ʻole 0.00004055 iniha.ʻOi aku ka liʻiliʻi ma mua o ka hapalua hapa hapaʻumi—he hapa liʻiliʻi!

Ma ka ʻaoʻao ʻē aʻe, pono e loaʻa i kekahi ka pololei 10x ka mea a mākou e hoʻāʻo nei e ana.ʻO ia ke ʻano inā hilinaʻi wale mākou i kēia ana i 10x i kēlā waiwai, a i ʻole 0.00005 iniha.He hapa liʻiliʻi naʻe.

ʻOi aku ka ʻino o nā mea no nā ana CMM papahele hale kūʻai.Inā mālama ʻia ka CMM i loko o kahi keʻena nānā i mālama ʻia i ka wela, kōkua nui ia.Akā ma ka Papa Kūʻai, hiki ke ʻokoʻa ka mahana.Aia nā ʻano like ʻole e hiki ai i kahi CMM ke uku no ka hoʻololi ʻana o ka mahana, akā ʻaʻohe mea kūpono.

Hōʻike pinepine nā mea hana CMM i ka pololei no kahi pūʻulu wela, a e like me ka ISO 10360-2 no ka pololei CMM, ʻo kahi hui maʻamau ʻo 64-72F (18-22C).Maikaʻi kēlā inā ʻaʻole 86F kāu Papa Kūʻai i ke kauwela.A laila, ʻaʻohe āu kikoʻī maikaʻi no ka hewa.

Hāʻawi kekahi mau mea hana iā ʻoe i kahi pae o nā alapiʻi a i ʻole nā ​​mea wela me nā kikoʻī pololei like ʻole.Akā he aha ka hopena inā ʻoi aku ʻoe ma mua o hoʻokahi laulima no ka holo like o nā ʻāpana i nā manawa like ʻole o ka lā a i ʻole nā ​​lā ʻokoʻa o ka pule?

Hoʻomaka kekahi e hana i kahi kālā kānalua e hiki ai i nā hihia ʻino loa.Inā loaʻa kēlā mau hihia koʻikoʻi i nā ʻae ʻae ʻole no kāu mau ʻāpana, pono nā hoʻololi hou aʻe:

  • Hiki iā ʻoe ke kaupalena i ka hoʻohana ʻana iā CMM i kekahi mau manawa o ka lā ke hāʻule ka manawa i nā pae maikaʻi.
  • Hiki iā ʻoe ke koho i nā ʻāpana hoʻomanawanui haʻahaʻa a i ʻole nā ​​hiʻohiʻona i nā manawa o ka lā.
  • Loaʻa paha i nā CMM maikaʻi nā kikoʻī maikaʻi no kāu pae wela.Pono paha lākou ʻoiai ʻoi aku ka nui o ke kumukūʻai.

ʻOiaʻiʻo e hoʻopau kēia mau hana i kou hiki ke hoʻonohonoho pololei i kāu mau hana.Hiki koke ʻoe ke noʻonoʻo nei ʻoi aku ka maikaʻi o ka mālama ʻana i ke aniau ma ka Papa Kūʻai he waiwai kūpono.

Hiki iā ʻoe ke ʻike i ke ʻano o kēia ana holoʻokoʻa.

ʻO ka mea hoʻohui ʻē aʻe e hele pū ana me ke ʻano o ke ʻano o ka ʻae ʻana e nānā ʻia e CMM.ʻO ke kūlana gula ka Geometric Dimensioning and Tolerancing (GD&T).E nānā i kā mākou papa hoʻolauna ma GD&T e aʻo hou aku.

Pūnaehana CMM

Ke holo nei ʻo CMM i nā ʻano polokalamu like ʻole.Kapa ʻia ka maʻamau ʻo DMIS, ʻo ia ka Dimensional Measurement Interface Standard.ʻOiai ʻaʻole ia ka polokalamu polokalamu nui no kēlā me kēia mea hana CMM, kākoʻo ka hapa nui o lākou iā ia.

Ua hana nā mea hana i kā lākou ʻono ponoʻī no ka hoʻohui ʻana i nā hana ana i kākoʻo ʻole ʻia e DMIS.

DMIS

E like me ka DMIS i ʻōlelo ʻia, ʻo ia ka maʻamau, akā e like me ka g-code a CNC, nui nā ʻōlelo aʻoaʻo me:

  • PC-DMIS: Hexagon's version
  • OpenDMIS
  • TouchDMIS: Perceptron

MCOSMOS

ʻO MCOSTMOS ka polokalamu CMM o Nikon.

ʻO Calypso

ʻO Calypso ka polokalamu CMM mai Zeiss.

CMM a me CAD/CAM lako polokalamu

Pehea ka pili ʻana o CMM Software a me Programming me CAD/CAM Software?

Nui nā ʻano waihona CAD like ʻole, no laila e nānā i nā mea i kūpono i kāu CMM Software.ʻO ka hoʻohui hope loa i kapa ʻia ʻo Model Based Definition (MBD).Me MBD, hiki ke hoʻohana ʻia ke kŘkohu ponoʻī e unuhi i nā ana no ka CMM.

ʻO MDB ke poʻo nui loa, no laila ʻaʻole i hoʻohana ʻia i ka hapa nui o nā hihia.

CMM Probes, Paʻa, a me nā mea pono

Nā ʻimi noiʻi CMM

Loaʻa nā ʻano ʻano probe a me nā ʻano e hoʻomaʻamaʻa i nā noi like ʻole.

Nā Paʻa CMM

Hoʻopakele nā ​​mea paʻa i ka manawa i ka wā e hoʻouka ai a wehe i nā ʻāpana ma kahi CMM, e like me ka CNC Machine.Hiki iā ʻoe ke kiʻi i nā CMM i loaʻa i nā mea hoʻoili pallet maʻalahi e hoʻonui i ka throughput.

Kumukuai Mīkini CMM

Hoʻomaka nā Mīkini Ana Hoʻohui Hou i ka $20,000 a i $30,000 a piʻi i luna o $ 1 miliona.

Nā Hana e pili ana i ka CMM ma kahi hale kūʻai mīkini

Lunahooponopono CMM

Mea polokalamu CMM

Mea hoʻohana CMM


Ka manawa hoʻouna: Dec-25-2021