Cutting tool device with eccentric balance mechanism

Abstract

The invention discloses a cutting tool device with an eccentric balance mechanism. The cutting tool device with the eccentric balance mechanism comprises a power mechanism, an eccentric wheel mechanism, a connecting rod assembly and a cutting tool. The power mechanism is in transmission connection with the eccentric wheel mechanism, the eccentric wheel mechanism is connected with the cutting toolthrough the connecting rod assembly, and the eccentric wheel mechanism is provided with the balance mechanism. In the cutting tool device with the eccentric balance mechanism, a spindle motor transmits rotation motion through a gear or a synchronous belt, the eccentric wheel mechanism converts the rotation motion into reciprocating motion through the connecting rod assembly, large-stroke reciprocating motion is realized, and thud the production efficiency is improved. As the eccentric wheel mechanism is provided with the balance mechanism, the resultant force gravity center point C of a firstbalance gravity center A which is composed of the connecting rod assembly in cup joint with an eccentric inertia shaft and a first balancing weight block and a second balance gravity center B which iscomposed of the first balance gravity center A and a balance wheel device is always located on the circle center of an eccentric spindle, the unbalanced force on the eccentric inertia shaft is eliminated, and the vibration and noise caused by centrifugal force during high-speed rotation are reduced.

Description

technical field [0001] The invention relates to the technical field of numerically controlled cutting machines, in particular to a cutting knife device with an eccentric balance mechanism. Background technique [0002] The cutting machine currently used in the market is not strong because the eccentric shaft eccentric radius is less than or equal to 12.5mm, so that the working ability of the whole equipment is not strong. The vibrating knife of the spindle of the CNC cutting machine includes a spindle motor, an eccentric spindle fixed on the CNC cutting machine, a piston, a slider and a blade; the piston is set in the sealed cavity of the CNC cutting machine; the slider is set on the CNC cutting machine In the slideway, and the sealing chamber and the slideway are located on the same plane on the same side of the CNC cutting machine; the output shaft of the spindle motor is connected with the eccentric spindle through the transmission wheel, and the eccentric spindle is conn...

AI Technical Summary

Problems solved by technology

[0004] At the same time, the invention sets a larger eccentric distance (12.5mm greater than the eccentric distance commonly used in the market). Although increasing the eccentric distance improves the cutting performance of the cutting machine, but because the shaft is an eccentric mechanism and there is a heavy object on it, the high-speed Vibration and noise will inevitably be caused by centrifugal force during rotation. The larger the eccentric distance, the more obvious the noise and vibration, which cannot meet the noise standard of CNC cutting machines in GB / T14574-2000 "Marking and Verification of Noise Emission Values ​​of Machines and Equipment"

Images