The measurement of small part

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The can complete the brittle spare parts, part that must hold asepsis position or miniature part just about a few advanced measuring instruments of article introduction implement. "We consider as asking to machine a spare parts according to measurement standards, but the real measure of the spare parts decides very hard however. " this is constant can hear come from a workshop (especially miniature job shops) complain. Nevertheless, the progress that new generation measures an instrument will is opposite this is big helpful. Can use normally touch measure type and scanning type (blame contact) two kinds of methods will measure a part. Contact measures a head to be used at measuring to be able to strike measured part, also use at measuring to contain hard the spare parts of illuminative groove. To the brittle spare parts, part that must hold asepsis position or miniature spare parts, the light that can use some kind of form (wait like laser, Bai Guang, infrared ray) undertake metrical. The can finish afore-mentioned jobs just about a few advanced measuring instruments of article introduction implement. The Microlution company of Chicago is the manufacturer that produces miniature to machine a machine tool, developed those who be used at evaluating a spare parts to machine quality to measure accessory for Microlution 310-S machine tool. This is a kind of geometry that is based on laser measures a feature to be in machine survey a system. This device will be used on Z axis in all Jiao Jiguang's distance is measured with the uniform encoding on platform of machine tool campaign implement photograph of information of scanning fixed position is united in wedlock, in order to obtain the three-dimensional coordinate that the surface is measured to nod. The resolution that this device can obtain can and exterior contourgraph to rival (the stimulates beam of light to measure an interval resolution of 2µm of consumed spot diameter achieves 10nm) . To undertake metrical to workpiece, the campaign that can use Microlution 310-S machine tool to go up installs a system, appliance has inferior the laser that micron class repeats precision measures a head to replace cutter spindle quickly. When large quantities of quantities are produced, can hold the part card to be on tray, make laser measures a head to be able to scan many unit, the acquisition data that nod the cloud can be used at defining the dimension of the spare parts and exterior quality, importable also package of tripartite software undertakes data processing. Brown&The Optiv of Sharpe company is measured engine is main use those who be based on a vision to measure a principle, a variety of what also can configure functional all ready at the same time is other measuring first (include contact to measure sensor of He Baiguang of head, laser) Hexagon measures the Brown with subordinate group&The Optiv that Sharpe company develops measures machine series is the newest product that this group shows his to measure actual strength in small treatment domain. Gary Hobart of company product manager says, should measure engine is main use those who be based on a vision to measure a principle, but also can deploy all sorts of function all ready measure head and optical sensor (include contact to measure the) such as sensor of He Baiguang of head, laser. Optiv by a series of " building blocks type " module component is formed, what can satisfy an user is special measure need sue for peace to apply to measure way differently. Sensor of avery kind of, no matter be contact,measure a head, still be laser or Bai Guang (WLS) measures a head, can use at a variety of measurement. Although measure the reason of limits as a result of Z axis, the precision that measures a head in the video when countervail of of no help gets the limitation of lenticular depth of field, but measure to 2 dimension for, video measures a head still is speed the fastest, precision measures a head highestly. Systematic precision depends on the uses project that surveys head and place. According to experience estimation, video measures the resolution of the head to resemble element for 1/10 about, measure ability to resemble element for 1/3 about (inferior) of micron grade level. When measuring a head to measure with Bai Guang, resolution can reach level of accept rice grade, prep above measures the mechanical movement ability of machine. Can measure most subentry resembles element for 1/3, have the aid of at very high enlarge multiple, can achieve inferior micron grade level. Use tall enlarge multiple, accurate contact is measured and scanning measures white light to be able to detect with CAD mutual join, make spare parts dimension decides more easily. Because a lot of small parts must use blame contact to measure (a lot of features are like tiny radius or small hole honest to contact measurement unit too small) , because this need uses optical measurement technique. Company of 3 abundant United States offers precision range 0.

3 - the telescope of 5µm. Quick Vision video measures the standard precision of machine for 1.

5µm. "We know, the demand that research and development is versed in oppose measures appearance is very big, especially the quantity appearance with those functions and approximate machine tool. " the video of 3 abundant measures product expert Allen Cius to say, "Great majority measures an instrument to use a hand to move assemble and unassemble workpiece, nevertheless we also can be big batch production to offer assemble and unassemble by the robot the instrument of workpiece. " measure an order when what found a workpiece when, set work rough on the vitreous mesa of workbench fixed position above all. Use workpiece brim to detect automatically next the tool establishs department of a coordinate or reference point. All actions that when founding workpiece to measure an order, complete by " record " come down, store as the program rise. Want photograph function to film only workpiece picture, can undertake metrical to its. Once measure to program to finish, what can be used at implementation workpiece is automatic detect. In the clamp plant that the user requires to get on workpiece park workbench simply only, press pushbutton, can go away, let video measure machine is automatic finish measure the task entirely. Video measures a system to have kind of 3 kinds of illume normally: Workbench illume, glance type illume (also call coaxial illume) and programmable is annular illume. Of illume type choose depend on the complex degree of the product and must enlighten exterior amount. Workbench illume is the simplest lighting system (its illume effect special resemble optical comparator) . Coaxial illume light crosses lens, basically use face of Yu Zhaoliang workpiece. The most useful lighting system is the annular illume of the diode of red, green, La Faguang that can make up programmed control to make, use the light of different color, decide the change of the brim or work structure very easily. Because parabola aureola can become independent to have shift at camera, because this can change radial an angle of incidence in order to acquire optimal visual field. The video of series of Quick Vision Stream(QVS) of newest design of 3 abundant company is measured machine use frequency to show illume to replace CCD camera to capture the image in measuring accident to use a process, replaced CCD sensor of the standard with progressive scanning camera. QVS used the Gao Liang of new development to spend LED glitter lighting installation, because this can have uninterrupted video,measure. When the workbench just in time that taking the work that be measured reachs measurement point, a brief Gao Liang spends flashy and effective ground " freeze " motion, capture thereby the workpiece clarity picture that has complete, exact details. Acquires image can record the crucial coordinate of every next workpiece. In an application example, QV Stream measures a system to be able to detect inside 45 minutes a solar battery board 30000 alveolus that go up, the dimension of every aperture, azimuth and position on record. What basis of QV Stream series measures range is different, have arrive from 250mm of × of 300mm × 300mm a variety of norms such as 250mm of × of 600mm × 650mm, but the resolution of the instrument is 0.

1µm. The product manager Frank Powell of Marposs company says, this company has what can measure diametical 1mm the following alveolus to survey a system. "When using these instruments, we discover, two kinds of products that small treatment domain measures the hardest are miniature bearing and fuel nozzle, normally its measure a diameter but small to 0.

5mm. " the measurement for domain of contented small treatment demand, marposs company developed a variety of measuring instruments implement, among them one of online internal diameter that pass main shaft namely measure head Picothruvar. It is used at inside on round grinder, with grind wheel pair Xiang An to install, accessibility little internal diameter space undertakes metrical. Because the space is limited, grind annulus and measure a head to cannot enter hole at the same time inside, can with grinding, measure, the order of grinding undertakes alternately. The Mida OP32 of Marposs company is compact model touch surveying a system is for CNC miniature milling machine, machining center and Bench Machine Tool design. In measuring a head compositive transmission module, measure data to be able to transmit CNC machine tool to undertake for more effective ground grinding is machined through a receiver and an interface, successive curve memory was combined in measuring a head. The every time that measure a head and after grinding round of crossing-over to undertake metrical, the measure that wants to will be measured and before one measurement undertake comparative as a result, give the change of work measure to lead by amplifier computation next, spark in appropriate time thereby the control signal that exports grinding machine. "Bore diameter is too small it is a the biggest question, " Powell expresses, "Because cannot use contact to measure a head, because this can use pneumatic gauge only. Whether to choose pneumatic gauge to depend on of bore diameter and hole depth than, for example, want to measure the aperture of 20mm of 2mm of a diameter, deepness, must use pneumatic gauge. " " fall in certain circumstance, cannot undertake is in machine measure. Accordingly, to 0.

The tiny external diameter under 5mm, we suggest to use a kind of optics leaving a line to survey a system. What this system uses infrared ray is umbriferous will measure size, measure precision to depend on the resolution of camera. " increase what measure need and amount of miniature milling machine what grow ceaselessly to answer tiny cutting tool ceaselessly, marposs company developed Mida Laser 75 Pico to be not laser of contact cutting tool to examine a system, when this system measures the cutting tool of diametical 10µm, repeatability is as high as 0.

2µm. "Another note is: Do not feel workpiece. " Powell says, "The finger with smeary belt even metropolis influence measures the worker's temperature precision. " the Sharad Mundra of manager of the product that measure a head of Marposs points out, the cutting tool that machines with Yu Wei almost very small, the diameter is small to 0.

0002"(0.

The broach of 005mm) is not scarce also. Accordingly, whether is affirmatory cutting tool installed really appear crucial on the machine tool. "Accordingly, we offerred laser of contact of a kind of blame to survey a system, can measure small the cutting tool length to 30µm and diameter. " the Mida OP32 of Marposs company is compact model touch surveying a system is for CNC miniature milling machine, machining center and Bench Machine Tool design. In measuring a head compositive transmission module, measure data to be able to transmit CNC machine tool through a receiver and an interface; Increase what measure need and amount of miniature milling machine to answer what tiny cutting tool grows ceaselessly ceaselessly, marposs company still developed Mida Laser 75 Pico to be not laser of contact cutting tool to examine a system, when this system measures the cutting tool of diametical 10µm, repeatability is as high as 0.

2µm. Wireless measure a head very useful also on small-sized treatment machine tool. Of Marposs wireless measure a head to one contains emitter / the temper by dipping in water of receiver hits a needle forcedly, this measurement that measures a head limits is 32mm × 50mm, use at online measure. Have the work that is less than diameter of 1mm inside and outside to measure measure, marposs company rolled out M39S scanning to survey a system. This system uses gas electricity technology, esau draw mode measures diameter of tiny inside and outside, and but along whole cooperate the surface to undertake clearance is checked. M39S can show with the graph measure information, can detect diametical error, cylinder spends axis of sum of errors, aperture cooperate face error. For example, it can be used at checking a diameter to be only 0.

Between the aperture of 8mm and axis cooperate clearance. Should measure unit does not have a contact with the workpiece that be measured. The gas electricity converter of Marposs is a basis gas electricity measures the principle, measurement that is based on pneumatic technology development a component of the system, the dimension deviation of the workpiece that be measured is numerated with pressure change means by converter, be changed to be similar electric signal next. "We discover, aviation component is the powerful impetus of small machining industry. " the standing trustee Myles Richard of company of Metris United States says. What this company basically pays close attention to is to obtain highest measurement as far as possible precision, all inspection is over to measure the main feature that gives a part in the meantime. Measure in existing coordinate machine (scanning of blame contact laser increases to measure a function on CMM) , can make its implementation muti_function change. The coordinate of use Metris is measured machine perhaps have coordinate to measure with technical reformation of Metris laser scanning machine, can gain a lot of benefit, raise implementation optimal the efficiency that measures the effect. The coordinate of bridge-type of Metris LK-V 876 that uses base of pottery and porcelain is measured machine an example that is much sensor solution, it offerred contact to measure head and laser scanning to measure a head at the same time in a system. The lab undertakes high accuracy is measured below perfect environment and this kind of solution is devised to be in, can come true be less than 2.

The measurement of 5µm precision (the space measures precision for 2.

5/10000, repeatability is 0.

6/10000) , undertook checking test and verify by ISO 10-3-60 standard. Richard explanation says, "It is OK that method of this kinds of many sensor makes small machining industry is when need the dominant position that develops technology of scanning of avery kind of adequately. For example, when the appearance that measures an aperture, need to measure 3 to nod only, measure a head with a contact enough. But when measuring an outline side that has a lot of detail and feature, use scanning of blame contact laser to measure a head to get concentrated several foothold cloud more appropriate. " Metris company can be offerred already those who be used at high accuracy treatment is tiny measure equipment and the optics that use below manufacturing workshop environment and portable survey a system, also can offer use at dimension to be in 16 - the large scale of the treatment of 60m and workpiece measures equipment. "Nowadays, laser scanning is measured to a lot of measurement remain the company relative to newer technology. Metris company is in of this technology seek advice, support and groom the ability of the respect can help an user recognize its value before investing to this technology, this are very important. " Richard says, "Normally understanding is, the manufacturing technology that new facility can give an user brings major change, this is the reason with the experience that Metris accumulates for a long time and crucial knowledge. " the standing trustee Mark Arenal of Starrett company points out: "The development of the powerful ability of the computer and video technology has made the progress that this measures a domain becomes a possibility, this is evaluated for image and complex measure provided much digital information. " in the past a paragraph of period, optical comparator ever was to apply at a lot of treatment basically measure an instrument mediumly. But, as workpiece smaller and smaller, public errand is more and more severe, little to enlarge fold, observation detail and feature and the demand that gauge the respect such as efficiency become an issue gradually in a lot of workshops, higher to measuring an instrument resolution and better versatility also raised a requirement. For this, developed blame contact video to measure above all machine, next, to satisfy more complex measurement demand, measuring again contact increased to measure head and laser to measure a head on machine. Accordingly, the user can buy platform of fixed position of a coordinate nowadays, it can measure laser optics of contact of head, blame to measure head and contact to measure the advantage of the head to be combined together. It is more difficult that high end measures a system to be had normally hold the characteristic that accuse, need those who have higher level to groom. And of introductory class basic model product (be like video comparator or tool microscope) more maneuverable. "The industry that measure appearance is growing ceaselessly, " Arenal says, "Finish measure the task to be able to use a variety of means, because this people always hopes to choose to survey a system best, its motivation comes from treatment requirement already, also come to what appearance of estimate one's own ability can achieve measure the effect. You can obtain quantitative data quickly not only, and also can obtain qualitative data. " " complex to having the workpiece of three-dimensional form appearance, laser measures a head may be very good choice, you can get a group of data that can reflect complex form appearance are nodded. To containing the greater work of a lot of recess, it is better that choice contact measures a head. Measure a head to arrive hard to those contact it is important to have little detail the workpiece of place, video measures a head is best choice, and the requirement has taller enlarge multiple. " here, dimension acted important role. "Be like the workpiece of aspirin tablet size to, must use blame contact to measure way normally. To large work (the) of alar bridge construction that is like a plane, need possibly to use contact to measure. " Arenal says, "When measuring old plane or soft workpiece, the movable type video that optimal choice is bigger norms surveys a system. For example, contain to cannot of lay a finger on etch large and compressed workpiece of the surface, the contact of great distance blame that can use to deploy video sensor is measured machine undertake metrical. " the advantage system that video surveys a system is right now 2 dimension or 2.

On the measurement of 5 dimension workpiece. "Our low cost video measures a system to be able to undertake complex measurement, its are main the characteristic is to use simple brim to detect. " Arenal says, "This system basically is used at sheet or small lot is measured, and can regard a tool as microscope or optical comparator upgrade replacement product. These measurement machine already improved on function design operate for motor-driven. " Zeiss company offerred newest F25 to measure for small production industry machine, the uncertainty of measurement of this instrument does not exceed 250nm, its characteristic was to be deployed already touch hairdo to measure a head, deployed newfangled optics to measure a head again. The measurement that use contact measures a head the system has a crucial problem: Avoid to measure the head makes workpiece is out of shape or shift. Zeiss measures a system to measure pressure through designing for 0.

5mNµm(measured the system measuring a head of the 1/200) of the head to solve this one problem for great majority only. Should measure a head to be able to use a diameter small to 0.

Of 12mm measure a ball. "Realizing inaccuracy to spend so small measured the biggest challenge surely is caloric influence, " the Gerrit DeGlee of new product manager of ministry of Zeiss company accurate product says, "To solve this one problem, f25 is measured machine used by a kind of glass - the scale rule that material of pottery and porcelain makes, this kind of material is formed by different element, when be heated, a few elements expand and another some of element contracts, because this is final,the result is essentially 0 expand. Previously, light is scale feet heat expands the inaccuracy of rate spends what can exceed us to try achieve to measure precision surely. After adopting rule of this kind of scale, we can cancel those same meetings to affect the hot sensor of uncertainty of measurement. We can cancel those same meetings to affect the hot sensor of uncertainty of measurement.. CNC Milling CNC Machining