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introduction： This paper is based on demand analysis、Database design and implementation，A fast tool query and database management system is proposed，Thus the tool ADAPTS to the high speed of CNC machine tool、And a high degree of automation，The tool utilization rate and the flexibility and efficiency of CNC machining are improved，Ultimately, the cost of new product development is reduced，Shorten the trial production cycle。 one、introduction With people on machining accuracy、Improved efficiency and special workpiece processing requirements，CNC workshops and machining centers have been widely used in modern large and medium-sized enterprises。In the machining center，Tool management is an important task，It does not
2015-04-18 Reading quantity 2940
introduction：rollNSKbearing[NSKbearing:Seiko Co., LTD（NSK LTD.）Be established in1916years，It is the first manufacturer to design and produce bearings in Japan。NSKThe function of the bearing fit is to makeNSKThe stationary ring and rotating ring of the bearing are respectively the stationary part of the installation part(Usually a bearing seat)And rotating part(Usually an axis)Solidify together，Thus, the basic tasks of transferring the load in the rotating state and defining the position of the moving system relative to the stationary system are realized。]During routine inspection of goods，It must be carried out under the conditions specified in the national standards。 (1)Temperature conditions at the time of measurement
2015-04-18 Reading quantity 1515
introduction： Deep groove ball bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]Allow slight running noise during work，If the noise is too loud or there is abnormal noise or banging，It indicates that the bearing is faulty。 The cause of noise caused by deep groove ball bearing is more complicated，One is inside the bearing、Outer ring with surface wear。Due to this wear and tear，broken
2015-04-18 Reading quantity 1578
introduction：1)Tile surface corrosion：Spectral analysis found that the concentration of non-ferrous elements was abnormal；Many submicron wear particles with non-ferrous components appear in ferrography；Excessive lubricating oil moisture、Acid value exceeding standard。 2)Journal surface corrosion：The spectral analysis found that the iron concentration was abnormal，There are many submicron particles of iron composition in the ferrogram，Lubricating oil moisture exceeds the standard or acid value exceeds the standard。 3)Journal surface strain：There are ferrous cutting wear particles or black oxide particles in the ferrography，Tempering color exists on the metal surface。 4)Fretting wear of tile back：Spectral analysis found an abnormal iron concentration，There are many submicron wear particles of iron composition in ferrography
2015-04-18 Reading quantity 1559
introduction：A non-rigid coupling with liquid as the working medium，Also known as hydraulic coupling。Hydraulic coupler(See picture[Schematic diagram of hydraulic coupler])The pump wheel and turbine form a closed working chamber that circulates the liquid，The pump wheel is mounted on the input shaft,The turbine is mounted on the output shaft to power the engine（Internal combustion engine、Motor etc）Drive the input shaft to rotate，The liquid is thrown out by the centrifugal pump wheel。The high-speed liquid enters the turbine and spins it，The energy obtained from the pump wheel is transferred to the output shaft。Finally, the liquid returns to the pump wheel，Form a cycle of flow。The hydraulic coupler relies on the liquid and the pump wheel、The blades of a turbine interact to produce a moment of momentum
2015-04-18 Reading quantity 2828
introduction： Pclass Carbide blade cutting parameters recommended table Be processed Materials Brinell hardness HB YC10、YT30 YT05、K7H YC20、ZP10 YT15、K45 YC30、ZP30 YT5、K21
2015-04-18 Reading quantity 2878
introduction： Improper way can also cause roller bearings[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]fever。The wear of parts in motion can be reduced by lubrication，Ensure press accuracy，Reduce energy consumption。Lubricate by thin oil、Rich oil lubrication, etc。Thin oil lubrication：The advantage is that the internal friction coefficient is small，So it takes less energy to overcome friction，dilute
2015-04-18 Reading quantity 1546
introduction： News summary:inUGIn the software，There are several generation tools for generating curves，Generative line、arc、ellipse、sample article、parabola、Hyperbola and so on，It is particularly worth mentioning，inUGIn the software，Has to generate equations Expression of the function of the curve，And the curve is also correlated，That is, if the equation changes，Curve bar Will change with，This is especially suitable for some specific needs，Such as CAM modeling。 inUGThere are two main steps in the modeling of software curveUGIn the software，There are several generation tools for generating curves，Generative line、arc、ellipse、sample article
2015-04-18 Reading quantity 2897
introduction：chilun huafaGear drawingconventional representation of gears In mechanical drawing，The tooth part of the gear is complicated to map。To improve the efficiency of drawing，Gear drawing standards have been formulated in many countries，It has also been formulated internationallyISOStandard。China mechanical drawing national standard:①The top circle and the top line are drawn with thick solid lines。②Indexing circles and indexing lines are drawn with dot lines。③The root circle and the root line are drawn with fine solid lines，Or omit not to draw。In section view,The root lines are drawn with thick solid lines(
2015-04-18 Reading quantity 2844
introduction：FAGCross roller bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]，Can withstand loads from all directions at the same time(axially、Thrust or momentum load, etc)。FAGBecause the roller is in current contact with the track surface，therefore，There is little possibility of elastic deformation of bearing under load。 This typeFAGImported bearing[Imported bearing:Put simply
2015-04-18 Reading quantity 1615
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