Conas an sruth de mheaisínithe poll domhain a réiteach?

Sa phróiseas meaisínithe poll domhain, mar gheall ar earráid siméadrachta an dá imill ghearradh ar an druil agus an neamhréireacht géire, etc., beidh sé ina chúis le sruth an suíomh poll le linn an phróisis druileála. I ngnáthchúinsí, tá sé deacair an luach srutha de 100mm a rialú laistigh de 0.1mm. Go ginearálta, déanfar na poill níos déine a reamed tar éis druileála. Is féidir le Reaming cruinneas trastomhas an poll a rialú agus cáilíocht an dromchla a fheabhsú. Ach ní féidir leis an sruth de bharr druileála a cheartú.

Chun an fhadhb seo a réiteach, bhriseamar an smaoineamh traidisiúnta agus chreid muid, cé go bhfuil an sruth le linn druileála dosheachanta, is féidir an ceanglas coaxiality a áirithiú fós tríd an gciorcal seachtrach a oiriúnú don pholl istigh. Is iad na céimeanna próiseas sonracha de réiteach srutha suíomh poll meaisínithe poll domhain:

(1) Ag bánú, fág corrlach 2mm ar an fad iomlán.

(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.