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The working principle of

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The working principle of

Release date:2015-11-03 00:00 Source:http://www.ykdy.com Views:

   

Mechanical pressure machine, driven by motor through v-belt pulley (usually as a flywheel), a gear pair and clutch drive the slider-crank mechanism, make the slider and punch line downward. Forging press return up to work after the completion of the slider, clutch release automatically, automatic device connected on the crank shaft at the same time, make the slider stops near the top dead center. Mechanical press is working, by the motor through v-belt drive big pulley (usually as a flywheel)

Forging machine tool works

Forging machine tool works

, after gear pair and clutch drive the slider-crank mechanism, make the slider and punch line downward. Forging press return up to work after the completion of the slider, clutch release automatically, automatic device connected on the crank shaft at the same time, make the slider stops near the top dead center.

Rolling roll forging deformation is the essence of billet, billet section decrease of cross section and length. When the cross section deformation is bigger, needs to be done by several pass through many times roll. The main process design is reasonable decision of roll forging of the amount of reduction, broadening and extension deformation. They depend on the size of the roll diameter, the shape of the groove size, casting temperature and deformation conditions, such as cooling and lubrication. Some pairs of backup roll forging machine in the roll shaft at one end, the cantilever is combined with two bearing type of compound roll forging machine, it can realize the vertical roll forging and can complete the transverse broadening forming on the cantilever end. Widely used in mass production of roll forging manipulator transfer artifacts, realize the automation of production process, increase productivity, reduce labor intensity.

With a punch to the billet placed in die pressure, to produce plastic flow, thereby gaining corresponding to mold the shape of the hole or concave and convex parts forging method. Extrusion, billet produced three to compressive stress, even the plastic lower blank, can also be extrusion forming. Extrusion, especially cold extrusion, high material utilization, improved the mechanical properties of the material, simple operation, high productivity, can produce long pole, deep hole, thin walled, different section parts, is less important machining process. Extrusion is mainly used for metal forming, but also can be used for plastic, rubber, forming of graphite and clay etc. Nonmetal workpieces.

Each of the slider-crank mechanism is called a "point". With one point, the most simple mechanical press is only a slider-crank mechanism. Some big face mechanical press, in order to make the slider base force uniform and smooth movement and use of two point or four o 'clock.

Mechanical press is to impact load, that is a working period, forging work time is very short. Short of the maximum power more than a dozen times larger than average power, so have the flywheel set in the transmission system. According to the average power of the motor starts, the flywheel running to the rated speed, savings into kinetic energy. Punch contact after forging blank to start working, the driving power of the motor is less than the load, speed is reduced, the kinetic energy of the flywheel to release the savings to compensate. Forging work is completed, the flywheel speed up savings into kinetic energy, again arrange another time to use.

Between clutch and brake of mechanical press is equipped with mechanical or electrical chain, to ensure the clutch engagement before brake must loosen, the brake clutch before release. The operation of the mechanical press is divided into continuous and single stroke and inching (micro), most are realized by controlling the clutch and brake. Slider stroke length unchanged, but its the distance between the base and face (called sealing height), can through the screw to adjust.

Production, likely more than nominal press work force phenomenon. In order to ensure the safety of the equipment is often installed on the pressure overload protection device. To ensure that the operator personal Ann, press is equipped with photoelectric above or hands operation type personal protective equipment.


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