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2 between when, its and torque coefficient are put in particular linear concern, but when coefficient of friction exceeds this range, the error slants relatively big. Of quality awareness deepen and a few more outspread reflective product (component) the parameter of condition, function or index, long-term since did not get attention in the enterprise, some criterion has not included monitoring the category at all. On current annual meeting, the trend that industry quality awareness reinforces is very clear. Cleanness is spent is " the history is long " quality index. Below the situation that produces in batch, workpiece is cleaned often is a necessary process, and cleanness is spent even if examine the evaluation index of its effect. But the pallet test equipment with old continuance and onefold and constant assess target make clear, its importance did not get the attention with very big company. However, in recent years as to the car kind product security, dependability and the higher demand to environmental protection and energy-saving respect, this one state is producing change quickly, there was many paper to discuss the importance that product cleanness spends and pilot complexity from different point of view on the meeting second year originally. Nowadays, the promotion that cleanness spends index to be worth and detect increase: From in the past onefold " hangover quality " , increase to be mixed for character of physics of the largest particle size, hangover wait to the statistical analysis of particle size size, and had made a kind of trend, corresponding test instrument also emerge as the times require. Although abroad pushs the relevant test equipment that go out to already entered country in succession,what make a person glad very is, and the relevant instrument of domestic own research and development, equipment is approbated increasingly also by the user, include high end " cleanness spends odd-come-short analyzer " application was won successfully in automobile factory of a few mainstreams. Of quality awareness deepen with outspread body geometrical quantity detects now the respect also is in grow in quantity, the attention of microcosmic to helix shape construction is namely. The safe problem that by dynamical machinery the discharge outside the working medium minim inside body of working process lumen poses, classics date from, analysis discovered crankshaft circumgyrate sealing surface shows structure of corkscrewed yarn grain (Twist) this one hidden trouble (see a picture 2) . Come from people power assembly (Shanghai) the delegate of limited company, the practice that combines company production points out, to the test of eigenvalue of this one quality, monitoring, there already was specific provision in product craft requirement not only, already was in in recent years the level that evolution gave a standard, built detect accordingly and assess method. Graph the three-dimensional form appearance of structure of grain of 2 corkscrewed yarn is flexible, general what the progress that measures mode and aggrandizement are accompanying automobile manufacturing industry to produce craft and equipment is flexible change, the measurement with development and more more general, flexible aggrandizement the technology also makes a trend, this are in this second got be showinged adequately on the annual meeting that monitor. The coordinate of a breakthrough that coordinate measures machine application measures machine application at dynamical assembly component detect very general already, especially gear-box carapace, cylinder body, crock builds a kind casing kind workpiece. But the application of special to minority place and parameter still is blank all the time, involving crock of measurement that builds valve base is representative example. The demand is gauged in this in, of a series of parameter such as the measure that included tracheal to slightness hole, appearance and position detect. To this one already important very thorny difficult problem, use traditionally (chromatic) special gauge and the measure that lead a list kind that have metrical, although cost is low, simple and easy feasible, but precision is low, satisfy the quality requirement of the product hard, reason already faded gradually. Adopt at present most is special electron or gas electricity check are provided, but they all are an entrance not only, and heretofore has a few a few firms only (like Nieberding company) can produce this one product, although precision is tall and stable, but the price is very high. Hexagon (Qingdao) the delegate of the company introduced how to be used on the meeting general, have the Global with very high rate in the industry at present model wait to be measured commonly machine solve afore-mentioned difficult problem, aroused the great interest of representing attending the meeting. Whole measure process cent to be conduit and valve base two parts, circumstance likeness, it is to use probe to give in software of PC-DMIS of recycle of scanning of sex of start off before the others of the share that be measured processing. The graph shows those who be valve base 3 times to survey case. Nextpage is used at online those who measure is flexible check is provided suffer with each passing day although,bestow favor on special examine clamping apparatus is flexible change there already was a manufacturer domestic and internationally to try before New Year in how, also had had a few relevant products, but as a result of a variety of reasons, use at production truly actual very few. On this second annual meeting, by study abroad homecoming personnel establishs " new 100 benefit " what already acquired patent technology what the company rolls out is flexible check provides the attention that got authority, be based on especially adjustable of sensor of tool and contact, blame contact half / automatic and flexible check is provided. This kind of implemental majority is used at batch to produce the contains automatic curved surface work below, wait like stamping workpiece, glass. Coordinate measures a technology to enlarge much home with each passing day in the application in detecting between machine treatment working procedure famous measure machine manufacturer, wait like FARO, Hexagon and Zeiss, the application in emphasizing coordinate measuring a technology to detect between machine treatment working procedure enlarges this one trend increasingly. FARO company besides cooperate " new 100 benefit " of the company flexible check is provided outside showing him joint arm to measure the application of machine product, still combine example to emphasize how to use at machine treatment to them online detect the domain made a specification. Well-known, this kind of portable coordinate is measured previously machine use in mostly truckload, enclothe a spot with large tool clamping apparatus to detect, use at precision more expensive machine machines a spare parts, especially complex casing kind the part is less. The speed that innovates because of the product not only is accelerated ceaselessly, and this kind of special check is provided not only the complex, cost that make is high, and cycle is long still, more and more the need that gets used to an enterprise hard. The small-sized, high accuracy that FARO develops ceaselessly, muti_function measure chance is better the ground satisfied a kind of such requirement, graph 5 it is two example, of left is with FARO joint brachial type is measured machine those who give priority to body is flexible check is provided, and the right in the graph is one is used at casing kind the special check that the spare parts detects is provided. Coordinate is measured machine be being used at another direction that detects between machine treatment working procedure is what measure the application in the room in nicety only in former days those measure machine configuration to be on product line, receive as bit string of a labour even at product line. Go up century end, the engine that preexistence of Shanghai current rate builds took case of this one party in the workshop, but become a trend gradually truly or in last few years, this also is measure with coordinate machine the technical day that is used at producing the spot attain maturity concerns. Will tell commonly, nicety measures indoor instrument to be able to maintain very high accuracy, very fundamental premise condition is " constant temperature " , be asked to be 20 ℃ ± below most circumstance 2 ℃ . Apparent, although this are in those mainstream enterprises " air conditioning " the workshop also is accomplished hard. For this, each equipment production manufacturer is in already on the foundation of some temperature compensation technologies, ceaseless development is more effective, economic with feasible plan, at present Hexagon (Qingdao) the company already used in company of domestic much home by system of PLC pilot bonnet it is. Right now, measure machine be located in by park the workshop, hut that isolates relatively again (bonnet) inside, be in this " microenvironment " in, no matter be workpiece pass in and out " window " , " the door " when open shut and the set of internal temperature, adjust control by PLC logic. Generally speaking, among them temperature can maintain in with workshop environment (temperature) the level that differs to be 2 ℃ only, through using especially clever (Trane) air conditioning, gradient also can press even the temperature inside bonnet the requirement to come true. Nextpage character promotes and craft is driven newlier detect the ceaseless emerge in large numbers that the technology develops new technology and the indefatigable pursuit to promotion product quality already became development to detect main impetus of the technology, the communication on the meeting made a speech second year and discussed to prove this adequately originally. Three-dimensional form appearance measures the automatic scorch that German Alicona company introduced not long ago to just appear on annual meeting technology and the efficient instrument that its develop accordingly, of telescope of its excel other a bit more important can be opposite already namely the fine point of workpiece surface also can undertake to macroscopical appearance accurate, quick detect. The axial sweep range of the instrument amounts to 23mm, 100*100m2 of area of the biggest scanning, the resolution of Z axis can amount to 10nm. When scanning area is lesser, whole measure a process to be less than 1 minute. Graph 6 it is to be used at connecting rod is big Kong Jiguang the special apparatus that modelling face measures, basically be to deserved to special workbench holding thing waits for an orgnaization. From the graph 6 left view are seen, there is a revolving to reflex prism inside the aperture that be measured, it turns early or late during measure / stop to 4 positions, target area of 4 laser modelling respectively, removed 90 ° . Drawing right view is optical system signal, this shows instrument is right the scanning chasing a layer of the surface that be measured is the light that gives through be being appeared by field lens, project through illuminator level land the laser modelling inside work is great aperture apparently. Although be measured,the face still is not general plane, work efficiency still very tall. Promote place of side of product quality demand yield innovation work about be in to get used to an user, american Adcole company is used at the FFT shake grain in the process is being measured to analysed software to offer in camshaft with very good paradigmatic. Alleged " shake grain " , because grinding is undeserved,those who point to is circumgyrate face and a kind of micromechanism that in its the surface forms. With respect to frequency character, their interpose is mixed at high frequency surface roughness between the appearance error of low frequency, belong to " wave degree " category, experience makes clear, right now frequency is about between 150~350 hertz. The immediate issue that brings to engine by the shake grain on camshaft cam is a car after starting, lift along with rotate speed and arise " chirp sound " and " howl cries " , undoubted, discover such problem when user level, and when reaching certain proportion, the survey that brings about a manufacturer to throw high specified number, upkeep costs, cause recall action even. Tell objectively, undertake to cam surface analysis of FFT shake grain belongs to a kind preventive measure, be different from some groovy parameter detect, because be like the exterior surface roughness that asks purely from blueprint (and even wave degree) , dimension of appearance sum of errors will judge, a completely eligible cam also often can exist " shake grain " hidden trouble. So, be to the analysis of shake grain and monitoring how undertake? Measuring through Adcole machine detect when workpiece, the monitoring that uses FFT shake grain to analyse software presses following means to undertake commonly: First the floor level of wave of a filter is worth set, be like 150 hertz, next certain interval generation gives every other the curve after wave of filter of a classics, graph 7 in its interval is 10 hertz, till some set upper limit, 300 hertz left and right sides is in the graph. In view of to different model, engine, the problem that poses by shake grain place is to be differred somewhat other, reason is mixed according to test result experience is OK with respect to the grain of some a few shake in set interval the curve has monitoring and judgement. It is to give amplitude set of the curve value of a demarcate commonly, for example 1 μ M, the monitoring curve that analyses the discovery in acquisition a collection of illustrative plates to be located in set through FFT shake grain when the user (like 200 hertz) amplitude value has exceeded 1 μ M, see a picture 7 (its every case is 5 μ M) , think right now the cam after grinding is put in hidden trouble, must adjust relevant treatment parameter to improve exterior micromechanism. Of course, in carrying out, above process is having automatically. Graph the FFT shake grain of 7 cam analyses signal in recent years, it is Euramerican mainstream car manufacturer not only, it is day of department medium mainstream enterprise also has taken seriously highly right " shake grain " analysis, monitoring, plant of domestic minority car also begins to ask this one to include pair of oneself products and relevant instrument equipment the essential requirement that raise. CNC Milling CNC Machining