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introduction： If you dont want to or cant use the mouse，You can use the keyboard to select an object and specify a position in the graphics window。 Will configure options kbd_selection Set as yes。 Look out：Click"tool"(Tools)>"Options"(Options) Set configuration options。 Click"EDITOR"(Edit)>"Select"(Select)>"Via keyboard"(By Keyboard)。"Select position"(Select Lo
2015-06-25 Reading quantity 3065
introduction： This kind ofIKObearing[IKObearing:IKONeedle roller bearing with its special internal structure to achieve the mechanical design of small、Light weight。Guideway bearings are based on the high quality given by needle roller bearings，Precision machining with unique mechanical equipment，Evaluate the quality of the latest machines，Products always maintain high performance and high quality level。]The characteristics of grinding method are：Full grinding allowance (0．20～0．60ram)With a smaller longitudinal feed(f_longitudinal= 0．08B～0．15Bmm／r)，Sharpen it in one longitudinal stroke。
2015-06-25 Reading quantity 1589
introduction：summarize Magnetic drive centrifugal pump（Magnetic pump）Its the application of modern magnetic principles，A new type of pump which uses the magnetic drive of permanent magnet to realize the contactless transmission of torque，That is, the motor drives the external rotor（That is, external magnetic steel）Assembly rotation time，Through the action of the magnetic field, the magnetic field line passes through the isolating sleeve to drive the inner rotor（That is, internal magnetic steel）Assembly and impeller rotate in sync，Because the medium is enclosed in a static isolation sheath，Thus to achieve the purpose of no leakage pumping medium，Completely solved the shaft seal leakage of the mechanical drive pump，And designed to be fully sealed、leakproof、Pollution-free new industrial pump。 Magnetic pump is the chemical process to eliminate running、take、
2015-06-25 Reading quantity 3017
introduction： High speed precision 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。]，It is mainly used for high-speed rotating occasions with light load，High bearing accuracy required、High speed of revolution、Low temperature rise low vibration and certain service life。It is often used as a pair installation of high-speed motorized spindle support，It is the hub of high-speed electric spindle of internal surface grinding machine。 High speed precision
2015-06-25 Reading quantity 1636
introduction：1 Nc programming and its development Nc programming is presentCAD/CAPP/CAMOne of the most obvious benefits of the system，It is in the realization of design and processing automation、Improve machining precision and machining quality、Shortening product development cycle plays an important role。In industries such as aviation、The automotive industry and other fields have a large number of applications。Due to the actual strong demand for production，Numerical control programming technology has been extensively studied both at home and abroad，And achieved fruitful results。The following is some introduction to numerical control programming and its development。 Basic concepts of numerical control programming Nc programming is from drawing to obtaining parts
2015-06-25 Reading quantity 2971
introduction： Made by powder metallurgy﹑Metals that have a small coefficient of friction between surfaces that rub against each other in relative motion﹑Alloys or metal composites﹐Also known as sintered antifriction material。Sintered antifriction materials are widely used in the manufacture of plain 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，To reduce the power transmission process
2015-06-25 Reading quantity 2968
introduction： Rivets are no stranger to everyone，Hefei electromagnetic clutch to give you a brief introduction to some knowledge about rivets。 Commonly used areRD-type rivet、Fan rivet、Drawing rivet(Core rivet)、Tree rivet、Round head、Crew cut、Semi-hollow rivet、Solid rivet、Countersunk head rivet、Cored rivet、Hollow rivet，These are usually riveted parts using their own deformation connections。Generally less than8Mm cold riveted，Anything larger than this size is hot riveted。But there are exceptions，Like the name plates on some locks，It is riveted by the amount of interference between the rivet and the lock body hole。 Flat head rivet
2015-06-25 Reading quantity 2989
introduction：Planetary cycloidal pinwheel reducer and cylindrical gear reducer，What are their advantages and disadvantages？The advantage of planetary cycloidal pinwheel reducer is that the speed ratio is large、Small size，The disadvantage is that the maintenance requires higher technical requirements，The carrying capacity is smaller than that of the gear、Higher price。The advantage of cylindrical gear reducer is low failure rate，Stable operation、Large carrying capacity、Simple structure、Easy maintenance、Lower price，The disadvantage is that it is relatively large、Large footprint、It is easy to produce tooth surface gluing。 What are the advantages and disadvantages of planetary cycloidal pinwheel reducer and gear motor reducer？ Cycloidal needle reducer Cycloidal needle price is cheap，The range of speed ratio is large，But the noise
2015-06-25 Reading quantity 2992
introduction：Working principle Use the heat absorbing medium in the equipment（refrigerant）Harvesting heat from the air or natural environment，The cold water is quickly warmed by a heat exchanger，It also emits cold air。Avoid traditional solar products in rainy weather、The drawback of not being able to work at night，As long as the outside temperature is1-15Above degrees can work normally，So can be more、Energy conservation，And it doesnt take up any open space，Easy to install、Flexible use。 Unit structure operation mode and principle The heat pump water heater consists of a refrigeration cycle，It includes two parts: main machine and condenser。The main engine part includes the evaporator、fan、
2015-06-25 Reading quantity 2876
introduction： Numerical control machining has been more and more widely used in todays machinery manufacturing and processing industry，In particular, economic CNC machine tools have a wide range of processing、High efficiency、Factors such as stable quality and low price have been greatly applied and developed in some enterprises, especially small and medium-sized enterprises。But in the popularization of the application，Long preparation times are often caused by improper use or process design、Large processing errors and even accidents and other problems，Bring a lot of inconvenience and psychological pressure to the operator。In fact，Economical CNC machining method if used well，It is very convenient and safe to process。Here are some common problems in processing
2015-06-24 Reading quantity 2986
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