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Anti-vibration Methods of Forging Machines

1. Brief Introduction of Forging Machines

Forging machine refers to a machine that uses hammering and other methods to make the metal material in plastic state into a workpiece with a certain shape and size and change its physical properties.

2. Causes of Vibration of Forging Machines

Forging hammers used in forging machines are very similar to press machines (especially forging machines) in terms of processing performance. However, the reaction force produced by the forging hammer during processing is not borne by the lathe, but by the mechanical foundation, which is fundamentally different from the press machine. This structural difference will be more obvious in the situation of anvil separation forging hammer commonly used for free forging. In a word, it will produce strong impact vibration when the workpiece is hammered at high speed by the end of a heavy forging hammer.

3. Anti-vibration Methods of Forging Machines

In terms of process operation, die forging and free forging are different. During die forging, even if there is a considerable displacement of the lathe (usually, the forging flat amount is about 30mm and the elongation side is about 15mm), the forging ability and operability will not be affected because of the large ratio of the anvil hammer. Therefore, for the spring system with lower natural frequency, a good anti-vibration effect can still be obtained without the use of the inertial base because of the large displacement of the lathe.

The forging machine is installed on a bench with a cavity at the lower part. The cavity is open downward. The whole lathe floats in the sink which is located on the terrace. In this way, the water pressure generated by the water level difference between inside and outside the cavity acts on the bottom of the bench through the air layer in the cavity. As a result, the bench will bear the buoyancy equal to its displacement. When the inertial base is formed and the vibration force is applied, the bench can move up and down freely. The guide roller can control inclination and rotation. The leaf springs are used as the buoyancy of the auxiliary part.