Punching device for punching machine

Abstract

The invention provides a punching device for a punching machine, and belongs to the technical field of machines. The punching device solves the technical problems that an existing punching structure of a punching machine is poor in structure stability and large in abrasion. The punching device comprises an installation support, a motor, a retarding mechanism, a crankshaft and a connecting rod; the installation support is provided with an installation plate, a first installation position is arranged on the upper end face of the installation plate, a second installation position and a third installation position are arranged on the lower end face of the installation plate; the motor is arranged on the side portion of the first installation position and is provided with a power shaft, and a rotary wheel is connected to the power shaft in a sleeving manner; the retarding mechanism comprises a flywheel and multiple stages of reduction gears, the multiple stages of reduction gears are arranged in the first installation position and the second installation position correspondingly, and the flywheel is in transmission connection with the rotary wheel and is in transmission connection with the multiple stages of reduction gears; the crankshaft is arranged in the third installation position and is in transmission connection with the multiple stages of reduction gears; and the connecting rod is arranged on a crank throw of the crankshaft, and a punching pin is connected to the lower end of the connecting rod. The punching device has the beneficial effects of being high in stability and small in abrasion.

Description

technical field [0001] The invention belongs to the technical field of mechanical machine tools, and in particular relates to a punching device for a punching machine. Background technique [0002] The punch press is a stamping press machine made of integrated special cast iron alloy processing, which has high rigidity, shock resistance and high precision. The punching machine often needs to slow down in the process of pressing down the punch, especially in the process of pressing down after the punch is in contact with the mold. The slow speed can ensure that the force of the punch is balanced during the stamping process, and the stamping effect is good. Existing punching machines generally use the motor to directly drive the crankshaft to rotate, and then the crankshaft pushes the punch to stamp the mold. Due to the large resistance encountered during the stamping process, this kind of slow operation requires high-strength output. The power has high requirements on the mo...

AI Technical Summary

Problems solved by technology

Existing punching machines generally use the motor to directly drive the crankshaft to rotate, and then the crankshaft pushes the punch to stamp the mold. Due to the large resistance encountered during the stamping process, this kind of slow operation requires high-strength output. The power has high requirements on the motor. It is difficult to guarantee the stability of the motor during operation, and it is easy to shake. Once the motor shakes, the crankshaft will also shake to a certain extent, which will lead to a decrease in the precision of stamping.

On the other hand, the friction of the crankshaft mechanism in the stamping device increases during transmission, and the wear is serious. After the wear, the precision of the punching machine is also reduced, and the overall life of the punching machine will also be greatly reduced.

For example, the patent application No. 201310033319.X is a patent for a punch press, which uses an ordinary crankshaft mechanism on the stamping device of the punch press. Although a counterweight mechanism is added to balance the force of the punch press, it still cannot solve the problem of the punch press. Movement is a matter of wear inside the crank mechanism

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