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introduction：jichuang shangxialiao zhuangzhi Machine tool loading and unloading device loader and unloader for machine tool An automatic or semi-automatic mechanism for loading the workpiece to be machined to the machining position on the machine tool and removing the machined workpiece from the machining position，Also known as automatic workpiece handling device。The blanking mechanism of most machine tool loading and unloading devices is relatively simple，Or feeding mechanism has the function of unloading，Therefore, the loading and unloading device of the machine tool is often referred to as the loading device。The loading and unloading device of the machine tool is an automaton
2015-01-08 Reading quantity 2794
introduction：SKFbearing[SKFbearing:SKFThe full name is“Svenska Kullager-Fabriken”The Chinese transliterated name is“SKF”；SKFThe group is headquartered in Gothenburg, Sweden，Is a leader in bearing technology and manufacturing。SKFBearings can be divided into sliding according to different specific structures and similarities and differences in working propertiesSKFBearing and rollingSKFbearing]After installation，To check that the installation is correct，An operational check is required。Small machines can be turned by hand，To make sure the rotation is smooth。Check items for foreign bodies、scar、Poor operation due to indentation，By installation
2015-01-08 Reading quantity 1543
introduction：NSKbearing[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。]In the course of its use, it shows strong regularity，And repeatability is very good。Normal quality bearing(Linear bearing)In initial use
2015-01-08 Reading quantity 1528
introduction： 1．Bending process：According to the shape of the part，The blank is bent at an Angle by the die and press，Stamping process method of workpiece with certain shape。 2．Application of bending forming process in industrial production：Quite widely used，Such as a lot of covers on the car，Cabinet frame for a car，Handle on the motorcycle，Foot support，The support structure on the bike，handle，Small as a doorknob，clamp（cramp）Etc.。 The basic principle of bending：In order toVThe bending deformation of shaped sheet metal bending parts is illustrated as an example。The process is： 1． Punch motion contact plate（
2015-01-08 Reading quantity 2820
introduction： The workpiece is heated with a high frequency current﹐Pressure is then applied to form the joint welding method(See picture High frequency welding diagram )。Using the principle of high frequency current concentrated along the conductor surface and along the path with the least inductive resistance﹐The current is concentrated to heat the surface of the workpiece to be welded﹐When thermoplastic state or partial melting state is reached﹐Pressure extrusion of the workpiece melts metal and metal oxides﹐A welded joint is formed。The common frequency range of high-frequency welding is 60～500Kilohertz (KHZ)。High-frequency welding is divided into high-frequency resistance welding and high-frequency induction welding。①
2015-01-08 Reading quantity 2789
introduction： Centrifugal pumps must often operate under harsh operating conditions，Resulting in a high likelihood of premature damage——This inevitably increases the risk of cost losses and lost productivity due to outages。Improve pump reliability、Reduce maintenance workload and reduce energy consumption under pressure，Look for、Identifying and implementing feasible solutions to mitigate risk levels becomes a priority。 Evaluate pump maintenance and repair methods（Pay special attention to bearings[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。also
2015-01-08 Reading quantity 1545
introduction：Reaction injection molding(RIM)Mixing by collision stream，The reactive liquid intermediate is mixed as it enters the mold，Thus forming the parts。Different from traditional injection molding，Reaction injection molding forms solid parts by cross-linking or polymerizing them within the mold，Not by cooling。This process does not require a thermal cavity to activate the reaction。In fact，Heat is formed when the intermediate is mixed under heat，therefore，RIMMolds usually need to be cooled。The demoulding time of molded parts generally does not exceed20seconds。 The reaction injection molding process was developed from polyurethane foam technology。Driven by demand in the automotive market，Make this
2015-01-08 Reading quantity 2792
introduction：Electric motors are generally in use2000Cleaning and refueling should be carried out after hours。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。]There are two kinds of cleaning methods： one、Hot oil cleaning method due to long use，Soft dry oil or rust resistant paste hardening bearing，Should be submerged in100—200℃In the hot oil，Clamp the shaft with pliers
2015-01-08 Reading quantity 1543
introduction： Strip sheet metal、Pipes and profiles are bent to a certain curvature、The shape and size of the workpiece stamping process。Bending is widely used in the manufacture of high-pressure vessels、 Boiler drum、 Boiler tube、The plates and ribs of a ships hull、All kinds of utensils、Instrument components and cabinet inserts, etc。 Bending of material，The stress states of each part in the deformation zone are different。The part in the middle of the cross section that does not deform is called the neutral layer。Metals outside the neutral layer are subjected to tensile stress，Produce elongation
2015-01-08 Reading quantity 2790
introduction： precision Bearings requiring high rotational accuracy[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。]disposition(Machine tool spindle)And applied to high speed working conditions，Bearings with higher accuracy than ordinary grades should be selected。Can provide a variety of high-precision bearings，Includes single row angular contact ball bearings、Single and double row cylindrical roller bearings，There is one more
2015-01-08 Reading quantity 1555
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