Measure with computation
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- source:SCHOCH CNC Machining
02mm. If measure the end panel that gives workpiece opening,to plug guage 0 lines differ 15mm, at this moment Kong Xiao 0.
3mm. OK and effective control cutting deepness, assure product quality. Check provides 4 aperture symmetry the Kong Duo of arbor jacket knife is square aperture, to satisfy the need that float boring cutter installs, tall to requirement of precision of the dimension of aperture of arbor upper part, appearance outside, still ask to the positional precision of aperture as much tall. Can use common measuring tool to measure to dimension and appearance precision, no-go to the measurement of positional precision. For this, made the tool that shows like graph 10-8 place with respect to the design, solved this one problem. When the examination, preexistence U form piece outfit of one aspect of the matter is expressed 100 minutes, another end inserts square aperture inside, and around is mobile, note the indication on next watches, retroflexion arbor next 180 ° , the method with same reoccupy is measured, the difference of the value that measures twice, it is to need treatment capacity namely. This U form piece, can make it is adjustable, do not examine in order to suit with the arbor of size. 5 in begging the method that cuts round of diameter to be repaired in machinery, often encounter be less than semicircular destroy round of in kind, should machine new annulus, must calculate round of original diameter. Reached in practice seek the formula that defeats round of diameter simple and accurately, see graph 10-9. Exemple of ED (1)AB=AECE+ED (2) of × of AE × EB=CE: Foregone CD=50mm, AE=10mm, seek diametical AB solution: ∵ E=ED=0.
5CD=25=25mm takes the place of datum into type (1) get × of 10 × EB=25 25 EB=62.
5mm criterion AB=10+62.
5=72.
5mm answers: Broken annulus external diameter is 72.
The approximate calculation of big circular arc of 56 small milling cutter machines big diameter circular arc with small diameter milling cutter, must calculate the angle that milling head should tilt. Use to facilitate, recommend a kind of approximate calculation now, formula is the A in Sina=d/D type -- the angle that establishs milling head to should be pulled (° ) ; D -- milling cutter diameter (Mm) ; D -- by diameter of treatment workpiece circular arc (Mm) . Exemple: Milling cutter diameter is 110mm, r of circular arc radius is 115.
4mm, beg establish a head how to many degrees should pull? Solution by on formula gets Sina=d/2 × R=110/230.
8=0.
4766 answer: Establish milling head to should pull 28 ° 28 ′ this shows, should establish milling head to pull only turn 28 ° 28 ′ , the milling cutter treatment that can use ψ 110mm gives R=115.
The circular arc inside 4mm. Use face of the circular arc inside milling of this kind of method, can shorten greatly knife head extends length, its calculation method is very simple also. CNC Milling CNC Machining