Vibration reduction device and method for a stamping machine tool

Abstract

The invention discloses a vibration damping device and method of a stamping machine tool. The vibration damping device comprises a top plate, a base plate, a magneto-rheological damper arranged between the top plate and the base plate and a buffering module. The magneto-rheological damper comprises a vibration piston connected with the top plate, a supporting portion, a working cylinder arranged in the supporting portion, a lead wire and a sealing cover. The supporting portion comprises a supporting base and a supporting column. The vibration piston is installed on the supporting column in a sleeved mode and is partially embedded into the working cylinder, and the sealing cover for sealing an opening of the working cylinder is arranged at the upper end of the supporting portion. A positive-pole magnetic coil is arranged at the bottom end of the vibration piston, and a negative-pole magnetic coil is arranged at the bottom end of the working cylinder. The damper is combined with machine tool vibration damping foot pads to form a whole by changing internal and external structures of the damper, a working plane can be adjusted to be kept horizontal, and intelligent vibration damping can be also achieved. Compared with traditional mechanical vibration dampers, the mechanical abrasion resisting performance is greatly improved due to the fact that a throttle valve with variable throttling area is not arranged in the magneto-rheological damper.

Description

Technical field [0001] The invention relates to a damping device and method for stamping machine tools. Background technique [0002] Stamping machine tools often produce severe vibrations during work, which seriously affects the accuracy of processed products. In view of the vibration problems of machine tools, shock absorbers are often used. At present, there are many types of shock absorbers, such as metal rubber shock absorbers, steel spring vibration isolators, rubber vibration isolators, air cushion vibration isolators, vibration isolation bases and Wire rope shock absorber, etc. In actual production, it is difficult for these shock absorbers to be flexibly adjusted according to actual usage, and they have certain limitations when used. [0003] Magnetorheological fluid has excellent characteristics such as excellent controllability, wide dynamic range, faster response speed, lower power consumption and relatively simple control methods, so it has been widely used in variou...

AI Technical Summary

Problems solved by technology

However, due to the large structure and irregular shape of magnetorheological damping devices in engineering applications, they are rarely used in the machinery manufacturing industry, especially in the application of stamping machine tool vibration reduction.

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