The gear that note model and photograph of machine treatment gear are compared, besides use involute conjugate to pass motion this are identical outside, have the place with collective other hardly. These two kinds of gear are had substantially distinction. Machine treatment gear is treatment of the cutting on the special gear machine tool that designing for specific treatment task to set dimension; The gear that note model is model figuration is noted in gear model antrum, this model antrum uses line cut discharge to machine a machine tool normally (EDMs) machine and become. The gear noting model that after the dimension size of antrum of model of the gear that note model can assure to note a pattern, contracts via refrigeration has correct dimension noncombatant duty. Can machine with antrum of a model give 10 thousand about a hundred gear that note model. The job that manufacturer of gear cutting treatment assumes is according to tolerancepublic errand requirement cutting treatment gives each gear. And the task that manufacturer of the gear that note model faces is to make give to approximate perfect gear model accent, give all gear that accord with tolerancepublic errand requirement with treatment of this model antrum next. Although,this looks small but however the difference with major meaning brought about a lot of other to change. This differentia different already was formed when once the decision is used,noting model gear. The design of the gear that note model without doubt, the gear that note model must be inside modular antrum figuration. Fact of this be related caused significant consequence. Note model antrum and among them axis kind the accurate noncombatant duty that the part has mechanical main transfer machinery very hard to be able to be offerred. Model antrum and gear are mixed as humidity likely the change of temperature contracts with different rate or expand. As this locality condition different, the intensity of the gear that note model, hardness even transmission efficiency will change somewhat. In bear the weight of below the circumstance, the temperature of surface of teeth of a cogwheel will lift, affect plastic character thereby. Because be put in these variable and other a few elements, be necessary to undertake custom-built design to the teeth of a cogwheel of gear. The advantage system that the gear that note model designs applies now on. The major positive drive that note model is unique. OK and accurate design is a gear to have only with another mating gear just can finish when clench the teeth its assign a function. In addition, of the gear that note model optimize design and make consider tool factor surely scarcely. Line cut discharge machines the modular pitch that the machine tool makes, its precision depends on the precision of the CAD. The public errand of gear model antrum can reach micron level. In fact, need traditional hob no longer, diameter section or modulus also are important technical parameter no longer. Involute basic circle becomes important variable. Pressure angle can measure means to undertake adjustment with imitate, in order to balance the relation of the intensity when clench the teeth of teeth of a cogwheel and height. The gear of custom-built design and standard gear photograph are compared, in function, quiet degree and allow tolerancepublic errand respect to have very big improvement and rise. After gear notes a model to device is designed through gear clench the teeth and make common difference, next need make the device that note a pattern. Gear records modular plant must nicety, have good thermal stability, through sclerotic sliding sleeve and surface, figure of exact gear model antrum, and injection mould of design high pressure. Itself of gear model antrum must be designed technically according to chosen mould material. To the gear noting model of specific application circumstance, because get the influence of a lot of elements, cannot forecast its accurately to contract actually quantity. Among them the mainest factor is the systole of the gear that note model in modular antrum is not isotropy. The contractive circumstance of gear main body of likelihood and maker forecast more adjacent, but as a result of gear teeth of a cogwheel all round it is rolled steel, its are accordingly cooling configuration and relatively the macroscopical and cooling pattern of gear main body is different. A when determine contractive amount better method is law of 2 paces approach. Estimate the contractive coefficient of gear beforehand, after make Injection Mold Tooling accordingly and machining a first gear, to gear appearance involute tooth profile undertakes nicety is measured, in order to decide the shrinkage of departmental cent, make new modular pitch afresh according to measuring gotten shrinkage next, note model gear with respect to what can get geometrical precision qualification finally. Only those who pass pair of tooth profile detect, ability decides the shrinkage of involute accurately. Through detecting to the scroll of gear, can be informed gear the certain state of inhomogenous systole, but also can cause misdirect sometimes. Can choose vitreous stuff stuff to make the gear that note model sometimes, because shrinkage of this kind of material is very low, right now contractive phenomenon becomes the issue in the design that note a pattern no longer. But this kind of method poses new issue possibly also. Not the project colophony of fill glass is like nylon and acetal, although be put in systole, but can note modular treatment to give point-device appearance. And vitreous stuff stuff is being noted confluent place can arise before model shedding build wiring, it will cause surface of teeth of a cogwheel to be out of shape and in the generation on gear a few local weakness are nodded. Generally speaking, vitreous fill gear and not the coequal gear photograph of fill glass is compared, it is inside life period wear away more easily. Stuff stuff is used at having the situation of special need only normally, when if overweight when gear,will becoming an issue. Nextpage gear notes modular craft all sorts of craft that note a pattern and the mechanism that note a pattern is endless and same. Gear notes modular craft taller to accuracy and repeatability requirement. Generally speaking, high accuracy gear needs to be made with new colophony. But although use new resin, material still must be had appropriate dry degree, its are fused temperature must be controlled accurately and can repeat, the pressure that note model also must be controlled accurately. Still must consider to note modular plant and pilot of the process that note a pattern harmonious and consistent. Should undertake below high temperature high pressure the model is machined noting when, those who fuse is plastic the air in must replacing modular antrum. Because this must be established,can let air eduction and the vent that colophony won't pour out of again. If vent is too small, aeriform eduction not free, may cause inflammation; If vent is too big, those who fuse is plastic will pour out of, form flash on the spare parts. The proposal notes model gear user to visit model of one chip in before signing a contract finally gear cutting factory. The clean degree that inspects circumstance of equipment of model of one chip in, plant roughly, detect ability and personnel are deployed etc, this will conduce to accurate assessment whether does this factory have a success to have the treatment that note a pattern and pilot potential faculty. For example, doing not have temperature pilot in make a nicety very hard note model gear in the environment. In humidity 90% , it is extremely difficult that temperature Fahrenheit machines the accurate gear that note model below the circumstance of 100 ° . Of the gear that note model detect come for years, gear detects the technology is improved ceaselessly, with determining accurately the major error of the generation in gear cutting treatment. The scanning of involute tooth profile is measured detect only normally a few a few tine in circuit. Metallic gear is boiling cut, insert cut turbine waiting for tine to be machined on the bed and be become, the tooth form of each tine is basic and identical. And the gear that note model is in possibly of gear either tooth flank a certain appear locally very big individual error. Have more very person, the model notes craft to introduce the error of a lot of as different as traditional machining types possibly still. Because any gear that note model want systole, and involute tooth profile is tooth form of a kind of target, not be one gives numerical value. No matter be to use means section, modulus, base pitch, pressure angle or any other involute parameter will control gear geometry appearance, to actual treatment part, these parameter are variable. To the parameter of these change, be necessary the public errand with actual and feasible set. Can note qualification of model gear dimension certainly (in be located in tolerancepublic errand to take) only method is scanning measure involute tooth profile, determine the size of actual physics geometry of gear. But the likelihood puts in the following circumstance: The dimension of the gear that note model exceeds tolerancepublic errand requirement completely already, but scroll detects integratedly the result is eligible still. For example the tooth profile of a gear detects result, its involute basic circle already far deviate provide a value. The gear that be measured has 64 a tooth-like part of anything, be used measure gear to also have 64 a tooth-like part of anything, roll the gear in detecting while total number of teeth in engagement is more, in measuring an outcome, did not age almost integrated deviation. Although this kind of gear looks bigger, but basic circle is very small. Decrease as a result of the transverse tooth thickness of gear thin, because this is in,roll good technical target can be reached in detecting. And once note these model gear spare parts to offer,give an user, meet when the metallic gear clench the teeth with true measure instantly invalidation. To prevent to appear this is planted error, must to gear each dimension variable that tags tolerancepublic errand establishs technical standard. Among them one obtains AGMA (American gear Manufacturers Association) admissive technical standard is recently just finish " the gear that note model detects guideline " . The proposal technology parameter of the gear that note model is in AGMA system, the parameter of basic circle geometry that uses gear regards main control as parameter. Indirect gear parameter is like diameter section and pressure angle to wait as working data, reference serves as when traditional analysis fiducial. Gear scroll detects can consider as ensure in batch production the best method of consistency of quality of the gear that note model. The integrated total error that it stated gear not only (TCE) or one tine is integrated error (TTE) , still can decide those who appoint to as real as what measure gear clench the teeth center is apart from the gear that be measured to whether be located in at the same time owing noncombatant duty inside the belt. This offerred the consistency that a kind of simple method will come to ensure the gear that note model is produced daily. To gear of a batch of example scroll detects the statistical analysis of the result, whether are the overall figure of OK and affirmatory gear and absolute dimension in tolerancepublic errand inside the belt. Scroll detects to noting model gear character, more resembling was to build a kind of scroll to detect eligible test and verify, the gear noting model that should ensure every are produced inherently should accord with this one test and verify. The development foreground of the gear that note model is quite hopeful. Material is obtained ceaselessly tremendous improve, the machinery that note model is more and more accurate, detect equipment already can undertake to these distinctive gear that note model high accuracy is measured. In the future, in the transmission application that can expect to replace metallic gear to apply at lighter load with the gear that note model. Manufacturer people continueing to search those to cannot use metallic gear, and the use circumstance of the land that plastic gear has use force however and domain. To enter these new potential application fields, must implement each measure correctly, mining notes each advantage of model gear. Its are to will develop the new generation power with a superior performance to transmit a product as a result. CNC MillingCNC Machining