Yuav ua li cas los daws qhov drift ntawm tob qhov machining?

Nyob rau hauv tus txheej txheem ntawm qhov sib sib zog nqus qhov machining, vim qhov kev ua yuam kev symmetry ntawm ob lub txiav ntug ntawm lub laum thiab inconsistency ntawm sharpness, thiab lwm yam., nws yuav ua rau lub drift ntawm lub qhov nyob rau hauv lub drilling txheej txheem. Raws li ib txwm muaj, nws tsis yooj yim los tswj tus nqi drift ntawm 100mm hauv 0.1mm. Feem ntau, qhov xav tau ntau dua qhov yuav tau rov ua dua tom qab drilling. Reaming tuaj yeem tswj txoj kab uas hla qhov tseeb ntawm lub qhov thiab txhim kho qhov zoo ntawm qhov chaw. Tab sis nws tsis tuaj yeem kho qhov drift tshwm sim los ntawm drilling.

Txhawm rau daws qhov teeb meem no, peb rhuav tshem cov kev xav ib txwm ua thiab ntseeg tias txawm hais tias lub drift thaum lub sij hawm drilling yog qhov tsis tuaj yeem, qhov kev xav tau ntawm coaxiality tseem tuaj yeem ua kom ntseeg tau los ntawm kev hloov lub voj voog sab hauv mus rau sab hauv lub qhov. Cov txheej txheem tshwj xeeb ntawm qhov sib sib zog nqus qhov machining qhov txoj hauj lwm drift tov yog:

(1) Blanking, tawm ntawm cov npoo ntawm 2 hli rau tag nrho qhov ntev.

(2) The left end of the car is exposed to light, and the outer circle of the rough car is φ35.5mm.

(3) Clamp the outer circle that has been rough-turned at the left end, and finish turning the right end face to ensure that the total length is 80±0.05 mm, and drill and ream through holes of φ4.9±0.05 mm.

(4) Remove the burrs at the two ends of the hole, two holes with φ4.9±0.05 mm, and the outer circle of φ34.9 mm is finely turned.

(5) Then process the remaining dimensions based on the outer circle of φ34.9 mm.

In this way, the φ4.9±0.05 mm hole is processed first, and then the other dimensions are processed on the basis of the φ4.9±0.05 mm hole, so that the drift error during the processing of the φ4.9±0.05 mm hole will be used in the subsequent processing Be corrected.