The method of eliminating the inertia force of high speed punch

In order to reduce the inertial force and improve the balance effect of the inertial force, the high speed punching machine of the precision punching machine manufacturer should minimize the quality of the rotating part and the reciprocating motion. Since the high speed reciprocating motion of the slider is the main source of the inertial force, while ensuring the strength , the mass of the slider is designed to be as small as possible (such as middle drilling, using high strength and low density alloy such as light alloy cast aluminum slider, etc.); using double crankshaft two-point or four-point transmission mode; using advanced, adjustable Dynamic balancing device with high performance and easy maintenance.

Due to the large inertia force of the high speed punch, when the pneumatic balance cylinder is used, its size is too large, the speed of the slider is too high, and the pneumatic sealing ring cannot bear it. The upper and lower cavities of the pneumatic balance cylinder need frequent intake and exhaust, and no suitable pneumatic valve can meet this requirement The reversing frequency is too fast. Therefore, it is not suitable to use the inertia force balance method in the form of a pneumatic balance cylinder on a high-speed punch.

Precision punch manufacturers configure the crankshaft with an eccentric block structure for high-speed punches with double crankshaft two-point or four-point transmission, which can achieve a good balance effect. Therefore, this is the most widely used inertia force balance method on high-speed punches.

The movement trend of the inertia force balance mechanism on the high-speed punch must be opposite to the movement trend of the slider, so as to achieve a good balance effect, try to use a symmetrical mechanism (such as multi-point <two-point, four-point> mechanism). In this way, the inertial force in the direction perpendicular to the movement of the slider can cancel each other in the system, and will not cause the torsional swing of the high-speed punch.

Precision punch press manufacturers found that for a given inertial force balance mechanism, it is necessary to optimize the design of various factors that affect the inertial force balance effect (such as the size of each component, the center of mass, the position of the fulcrum, etc.), in order to obtain a good inertial force balance. Effect.