The development trend of mechanical press and classification analysis

Mechanical press of high rigidity, high function was used as general machine C shape punch is the pursuit of high precision, high function, thus developed a shape planer puncher; With AIDA connecting rod drive mechanism and next slowly near dead point and the SPM is not affected by the connecting rod type press. The press brake machine in the drive gear and the crankshaft connecting rod type in the two eccentric connecting rod, when the drive gear turns, due to the links connecting rod Angle changes, do not uniform movement of the crankshaft. The linkage of the connecting rod and other agencies is the junction of compression zone and less comprehensive small gap. As shown in figure 8, rod mechanism than toggle mechanism of high torque capacity, which can realize the dead point position of forming higher. In view of the mechanical press the requirements of high precision, high rigidity developed the vertical rod punch (as shown in figure 8 VL series) , as shown in figure 9 for the drive way. VL drive mode is in ordinary toggle mechanism and a vertical rod and pivot connecting rod with two connecting rod, directly connected to the slider in the processing of the connecting rod basic remain vertical, can make the forming load by vertical linkage vertical transmission mode of drive. General machinery press brake machine because the connecting rod is a slant on the slider, the slide block by a lot of bad transverse force, therefore, this kind of drive mode than ordinary driving method has higher accuracy, is more suitable for high precision machining. By trying to figure 10 for common press brake machine. Bottom dead center position above 5 mm, ordinary toggle press slider are accounted for about 10% of the forming force, lateral force and VL not more than 1%. The punching machine is suitable for the requirements of the mold to neutral high processing. According to the speed ( The speed) Classification can be divided into three categories: 1: ordinary punch velocity under 100 times 2: small punch velocity in 200 - at a high speed About 400 times 3: high speed punch velocity in more than 500 times a punch in the manner of power points in three categories: 1: pneumatic press brake machine ( Pneumatic drive, small tonnage, 10) under t 2: hydraulic press ( Hydraulic drive, do big tonnage) 3: mechanical press ( Motor drive, suitable for any tonnage) According to the speed ( The speed) Classification can be divided into three categories: 1: ordinary punch velocity under 100 times 2: small press brake machine velocity in 200 - at a high speed About 400 times 3: high speed punch
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