Mechanical principle: ? Finish  of Hui large  ?

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Make some nods on component part truly or the orgnaization that moves point-blank approximately, create handy roll by Xuan mostly deputy comprise with staff state member. By Wu Jia labour high accuracy moves deputy already did not have difficulty. This kind of orgnaization still has application on appearance Zuo and certain machinery only. Cent of this kind of orgnaization is two kinds when move point-blank approximately and move correctly point-blank. 1.

Watt, J.

﹕ of orgnaization of approximate and sharp movement at the beginning of 19 centuries, to replace orgnaization of cumbersome at that time tine fan chain, watt, J.

Use Xuan of collateral motion principle to become orgnaization of a kind of approximate and sharp movement (graph 1 watt moves point-blank approximately orgnaization) . This kind of orgnaization is in between Wu Zhong when the position, AB of AD ⊥ , AB | | D, AB of ﹕ of DE =CD of AE ﹕, Zuo of E dot course has a paragraph approximate and linear, its length waits at least at AD. 2.

of wave Buddhist relics carries wave Buddhist relics invented motive compose ﹕ 1864 point-blank truly moves point-blank truly orgnaization, it is orgnaization of a 8 lever. Move point-blank truly in of Buddhist relics of graph 2a wave in the orgnaization, linear O circles O to choose roll, the P that and moves a point and Q are in the edge is drawn respectively while linear O is mobile with two curves, if OQ = of OP × is invariable, the each other that calls turns over a curve. If be,be the centre of a circle with C, the circular arc that and be radius with CO ( of Buddhist relics of graph 2b wave moves point-blank truly orgnaization) , criterion line of retroflexion of its each other is namely perpendicular move to the orgnaization is designed according to afore-mentioned conditions namely and be become point-blank truly at the linear Qq of O. Go up in sawing machine for example. The Q axis of this kind of orgnaization installs electrify motive and circular saw, swing CP lever, fretsaw can Qq sharp cut. In addition, famous sharp movement orgnaization still has the sharp movement orgnaization that thanks husband ﹑ Luo Baici to name with agree shellfish respectively and with Hart ﹑ agrees general ﹑ Scot CNC Milling CNC Machining