Analysis on the Development Trend of Punch in Future

At present, there are two kinds of machine tools and CNC machine tools. With the adjustment of industrial structure. Various types of machine tools to adapt to market demand, the development trend is significantly different. At present, the domestic demand for high-end CNC machine tools continue to increase, there are certain mechanical punch changes.

The development direction of the basic characteristics of mechanical presses and developed in recent years for a variety of molding high-precision multi-function punch technology. Forging punch selection, production crankshaft punch selection; if billet forming the pursuit of punch selection switch; if you need to form or block forged link presses choose a high position. In order to achieve non-cutting shape, the punch function is getting higher and higher. Stamping machinery is the development trend of high precision, high rigidity, the right slider movement characteristics, intelligent, multi-directional movement, and even the direction of environmental protection.

There are two basic characteristics of the punch press machine, which is rigid, including the longitudinal stiffness, the slider, the hog and elastic elongation table, the slider and the lateral displacement under the influence of lateral stiffness and eccentric load. The movement of the slider, including straightness, verticality, parallelism, the accuracy of the product has a great impact.

High Stiffness and High Performance Universal Punch. The first general-purpose machine punch also the pursuit of high-precision, high-performance, developed a gantry punch; link drive mechanism and the near-bottom dead and the rod-type punch effect is very slow. The crankshaft link between the pinion gear and the two eccentric interventions, when the transmission gear rotates, the crankshaft does not move due to the change in the angle of the connecting rod.

Universal mechanical punch because the connecting rod is baroclinic in the slider makes a lot of bad slider lateral force. Therefore, the precision of the driving method is higher than that of the general driving method, and is more suitable for high-precision machining. 5 mm above the location of the general toggle-type slider slide lateral force accounted for about 10%, forming force and vertical rod-type punch does not exceed 1%. The punching machine applicable to the middle and lower die of the high, medium and low processing requirements. The drive mode and the drive are almost zero for the side force slider, but the stroke can be done much more than in the higher position, and the bottom dead center does not change much at all.

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