Unoziva here mazwi aya: Helix angle, point angle, main cutting edge, profile yenyere? Kana zvisina kudaro, unofanira kuramba uchiverenga. Tichapindura mibvunzo yakaita seyi: Chii chinonzi chechipiri chekucheka? Chii chinonzi helix angle? Zvinokanganisa sei kushandiswa mukushandisa?
Sei zvakakosha kuziva zvinhu izvi: Zvinhu zvakasiyana zvinoisa zvido zvakasiyana pachishandiswa. Nechikonzero ichi, kusarudzwa kweiyo twist drill ine yakakodzera chimiro kwakakosha zvakanyanya kune mhedzisiro yekuchera.
Ngatitarisei zvinhu zvisere zvakakosha zvechibooreso chekumonyorora: Kona yepoinzi, kona huru yekucheka, cheka chisel mupendero, kucheka kwepoinzi uye kutetepa kwepoinzi, chimiro chenyere, core, chechipiri chekucheka, uye helix angle.
Kuti uwane yakanakisa yekucheka kuita muzvinhu zvakasiyana, ese masere maficha anofanirwa kuenderana kune mumwe nemumwe.
Kuti tienzanisire izvi, tinofananidza matatu anotevera twist drills nemumwe nemumwe:
Point angle
Iyo point angle iri pamusoro we twist drill. Kona inopimwa pakati pemakona maviri makuru ekucheka kumusoro. A point angle inodiwa kuisa pakati twist drill muzvinhu.
Iyo idiki yekona yepoindi, inova nyore kuisa pakati pezvinhu. Izvi zvinoderedza zvakare njodzi yekutsvedza panzvimbo dzakakombama.
Iyo yakakura iyo kona yepoindi, iyo ipfupi nguva yekubaya. Nekudaro, iyo yakakwirira yekubata kudzvanywa inodiwa uye kumisa mukati mezvinyorwa kwakaoma.
Geometrically conditioned, a small point angle inoreva mativi makuru akareba, nepo kona hombe ichireva macheto makuru mapfupi.
Main cut edges
Iyo mikuru yekucheka mitsetse inotora iyo chaiyo yekuchera maitiro. Marefu ekucheka mapendero ane kukwirira kwekucheka kwekuita kana kuenzaniswa nekupfupika kwekucheka, kunyange kana kusiyana kuri kuduku.
Iyo twist drill inogara iine maviri makuru ekucheka macheto akabatanidzwa neakachekwa chisel edge.
Cheka chisel pamucheto
Iyo yakachekwa chisel mupendero inowanikwa pakati pechibooreso uye haina kucheka mhedzisiro. Zvisinei, zvakakosha pakuvakwa kwe twist drill, sezvo inobatanidza mativi maviri makuru ekucheka.
Iyo yakachekwa chisel mupendero ine basa rekupinda mukati uye inomanikidza uye kukwesha pane izvo zvinhu. Zvinhu izvi, izvo zvisingafadzi pakuchera, zvinoguma nekuwedzera kupisa chizvarwa uye kuwedzera simba rekushandisa.
Zvisinei, zvinhu izvi zvinogona kuderedzwa nezvinonzi "kuonda".
Point cuts uye point thinnings
Iyo poindi kuonda dzikisa iyo yakachekwa chisel mupendero kumusoro kwekumonyorora drill. Kutetepa kunoguma nekudzikira kukuru kwemasimba ekukwesha muzvinhu uye nekudaro kudzikiswa kwesimba rekudya rinodiwa.
Izvi zvinoreva kuti kutetepa ndicho chinhu chinogadzirisa chekuisa mukati mune izvo zvinhu. Inovandudza kubhuroka.
Iwo akasiyana point thinnings akamisikidzwa muDIN 1412 maumbirwo. Maumbirwo anonyanyozivikanwa ndiwo helical point (shape N) uye split point (shape C).
Mbiri yenyere (profile yegroove)
Nekuda kwekuita kwayo senge chiteshi system, chimiro chenyere inosimudzira kutorwa kwechip uye kubviswa.
Iyo yakafara iyo groove mbiri, zviri nani iyo chip kutorwa uye kubviswa.
Kubviswa kwakashata kwechip kunoreva kukwidziridzwa kwekupisa kwepamusoro, uko mukudzoka kunogona kutungamira mukuputira uye pakupedzisira kupaza kwekumonyorora drill.
Yakafara groove profiles yakati sandara, matete groove profiles akadzika. Kudzika kweiyo groove profil inotaridza ukobvu hweiyo drill core. Flat groove profiles inobvumira hombe (yakakora) madhayamita epakati. Deep groove profiles inobvumira madiki (matete) epakati madhayamita.
Core
Ukobvu hwepakati ndiyo chiyero chekumisikidza kugadzikana kwemonyorora chibooreso.
Mamonya madhiri ane hombe (akakora) dhayamita yepakati ane kugadzikana kwepamusoro saka akakodzera torque yepamusoro uye zvinhu zvakaomarara. Ivo zvakare vakanyatsokodzera kushandiswa mumaoko zvibooreso sezvo ivo vanonyanya kushingirira kune vibrations uye lateral masimba.
Kuti ufambise kubviswa kwemachipisi kubva mugororo, ukobvu hwepakati hunowedzera kubva pakuboorera kusvika kune shank.
Inotungamira chamfers uye yechipiri yekucheka mipendero
Madhiri maviri ari panyere. Iwo anopinza pasi machamfer anoshanda zvakare padivi pechibhorani uye anotsigira kutungamira kwekumonyorora drill mugomba rakacherwa. Hunhu hwemadziro echibhorani zvakare hunoenderana neiyo guide chamfers properties.
Iyo yechipiri yekucheka mupendero inoumba shanduko kubva kune inotungamira chamfers kuenda kune groove profile. Inosunungura uye inocheka machipisi akanamira kune izvo.
Kureba kwemachamfers ekutungamira uye yechipiri kucheka mipendero kunoenderana zvakanyanya nehelix angle.
Helix angle (spiral angle)
Chinhu chakakosha chemonyoro drill ndiyo helix angle (spiral angle). Inosarudza nzira yekugadzira chip.
Hombe helix angles inopa kubviswa kunobudirira kwezvinhu zvakapfava, zvenguva refu. Makona madiki helix, kune rumwe rutivi, anoshandiswa kune yakaoma, pfupi-chipping zvinhu.
Zvibhorani zvinomonereka zvine kakona kadiki-diki kehelix (10° – 19°) zvine kureba kutenderera. Mukudzoka, twist drill swith hombe helix angle (27° - 45°) ine rammed (pfupi) spiral. Madhiri ekumonyorora ane spiral akajairika ane helix angle ye19° – 40°.
Mabasa ehunhu mukushandisa
Pakutanga kuona, nyaya ye twist drills inoita seinonetsa. Hongu, pane zvakawanda zvinoumba uye maficha anosiyanisa twist drill. Zvisinei, maitiro akawanda anoenderana.
Kuti uwane iyo chaiyo twist drill, unogona kuzvitungamira kune yako application munhanho yekutanga. Bhuku reDIN rezvibooreso nemakaunda rinotsanangura, pasi peDIN 1836, kupatsanurwa kwemapoka ekushandisa kuita marudzi matatu N, H, uye W:
Mazuva ano hauzongowana idzi mhando nhatu N, H, uye W pamusika, nekuti nekufamba kwenguva, mhando dzakarongwa zvakasiyana kuti dzigadzirise kumonyorora drills kune yakakosha maapplication. Nekudaro, mafomu akasanganiswa akaumbwa ane masisitimu ekupa mazita asina kumira mugwaro reDIN. PaMSK haungowani chete mhando N asiwo mhando UNI, UTL kana VA.
Mhedziso uye pfupiso
Zvino iwe unoziva kuti ndeapi maficha eiyo twist drill anokanganisa maitiro ekuchera. Tafura inotevera inokupa tarisiro yeakanyanya kukosha maficha emamwe mabasa.
| Basa | Features |
|---|---|
| Kucheka kuita | Main cut edges Iyo mikuru yekucheka mitsetse inotora iyo chaiyo yekuchera maitiro. |
| Upenyu hwebasa | Mbiri yenyere (profile yegroove) Iyo mbiri yenyere inoshandiswa senge chiteshi system inokonzeresa kutorwa kwechip uye kubvisa uye, saka, chinhu chakakosha chehupenyu hwesevhisi ye twist drill. |
| Application | Point angle & Helix angle (spiral angle) Iyo poindi angle uye helix angle ndizvo zvakakosha zvinhu zvekushandisa mune zvakaoma kana zvinyoro zvinhu. |
| Centering | Point cuts uye point thinnings Mapoinzi ekucheka uye kuonda kwepoinzi zvinhu zvinosarudza zvekuisa pakati pezvinyorwa. Nekutetepa cheka chisel mupendero unodzikiswa zvakanyanya sezvinobvira. |
| Concentricity accuracy | Inotungamira chamfers uye yechipiri yekucheka mipendero Kutungamira chamfers uye chechipiri chekucheka mipendero inokanganisa kurongeka kweiyo twist drill uye kunaka kwegomba rekuchera. |
| Kugadzikana | Core Ukobvu hwepakati ndiyo chiyero chekupedzisira chekudzikama kweiyo twist drill. |
Chaizvoizvo, iwe unogona kuona chikumbiro chako uye zvinhu zvaunoda kurovera mazviri.
Tarisa uone kuti ndeapi twist drills anopihwa uye enzanisa anoenderana maficha uye mabasa aunoda kuti zvinhu zvako zviboore.
Nguva yekutumira: Aug-12-2022
