In the CNC machining process of mechanical parts, the machining of bearings is essential. Here we will introduce the technical requirements for machining of bearings:
1.The outer ring of the bearing, the semi-circular hole of the open bearing seat and the bearing cover must not be stuck.
2.After the bearing outer ring is assembled, it should be in even contact with the end face of the bearing cap at the positioning end.
3.The outer ring of the bearing should be in good contact with the semi-circular hole of the open bearing seat and the bearing cover. When checking with coloring, it should be 120° symmetrical to the center line with the bearing seat and 90° symmetrical to the center line with the bearing cover. even contact. When checking with a feeler gauge within the above range, a 0.03mm feeler gauge shall not be inserted into 1/3 of the width of the outer ring.
4.After the rolling bearing is installed, it should be flexible and stable to rotate by hand.
5.The assembly of rolling bearings is allowed to use oil heating for hot charging, and the temperature of the oil should not exceed 100 °C.
6.The joint surfaces of the upper and lower bearing shells should be closely attached, and the 0.05mm feeler gauge should not be used for inspection.
7.The bearing body and the bearing seat of the spherical bearing should be in even contact, and the contact should not be less than 70%.
8.When fixing the bearing bush with the locating pin, drill the hinge and distribute the pin under the condition that the mouth surface and end surface of the bush are flush with the opening and closing surface and end surface of the relevant bearing hole. The pins must not be loosened after being driven in.
9.When the surface of the alloy bearing lining is yellow, it is not allowed to use, and there is no nucleation phenomenon within the specified contact angle. The nucleation area outside the contact angle shall not be greater than 10% of the total area of the non-contact area.
Katika CNC machining mchakato wa sehemu za mitambo, machining ya bearings ni muhimu. Hapa tutaanzisha mahitaji ya kiufundi kwa machining ya bearing: 1. pete ya nje ya bearing, shimo la nusu mviringo la kiti cha bearing wazi na kifuniko cha bearing lazima si kukwama. Baada ya kuunganisha pete ya nje ya kuunganisha, inapaswa kuwa katika kuwasiliana hata na uso wa mwisho wa kifuniko cha kuunganisha kwenye mwisho wa nafasi. 3. ring nje ya bearing lazima kuwa katika mawasiliano nzuri na shimo nusu mviringo ya wazi bearing kiti na bearing kifuniko. Wakati wa kuangalia na rangi, inapaswa kuwa 120 ° symmetrical kwa mstari wa katikati na kiti cha kubeba na 90 ° symmetrical kwa mstari wa katikati na kifuniko cha kubeba. hata kuwasiliana. Wakati kuangalia na gauge ya felters ndani ya mbalimbali ya juu, gauge ya felters ya 0.03mm haipaswi kuingizwa katika 1 3 ya upana wa pete ya nje. Baada ya rolling bearing imewekwa, ni lazima kuwa rahisi na imara kwa kugeuka kwa mkono. 5.Mkusanyiko wa rolling bearings inaruhusiwa kutumia mafuta joto kwa ajili ya moto kuchaji, na joto la mafuta haipaswi kuzidi 100 ° C. 6.The pamoja nyuso ya juu na chini bearing shells lazima kuwa karibu kushikamana, na 0.05mm feeler gauge haipaswi kutumika kwa ajili ya ukaguzi. 7.Mwili wa kubeba na kiti cha kubeba cha kubeba cha kubeba lazima kiwe katika mawasiliano sawa, na mawasiliano haipaswi kuwa chini ya 70%. Wakati wa kufunga bearing bush na pin ya kugundua, kuchimba hinge na kusambaza pin chini ya hali kwamba uso wa mdomo na uso wa mwisho wa bearing ni flush na uso wa kufungua na kufunga na uso wa mwisho wa shimo husika la bearing. Pini lazima si loosened baada ya kuendeshwa katika. Wakati uso wa kifuniko cha chuma cha alloy ni manjano, hauruhusiwi kutumika, na hakuna hali ya nucleation ndani ya pembe maalum ya mawasiliano. Eneo la nucleation nje ya pembe ya mawasiliano halitakuwa kubwa kuliko 10% ya eneo la jumla la eneo lisilo la mawasiliano.