Cutting tool device with eccentric balance mechanism

A technology of balance mechanism and eccentricity, which is applied in the cutting of textile materials, textiles and papermaking, metal processing, etc. It can solve the problems that the noise standard of CNC cutting machines cannot be met, and achieve the purpose of avoiding the increase of unbalanced force, not easy to dissolve, and increase The effect of eccentric distance

Pending Publication Date: 2020-02-21
WUHAN KEPUYINENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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"

Method used

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  • Cutting tool device with eccentric balance mechanism
  • Cutting tool device with eccentric balance mechanism
  • Cutting tool device with eccentric balance mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] like Figures 1 to 3 As shown, this embodiment provides a cutting knife device with an eccentric balance mechanism, including a power mechanism 1, an eccentric wheel mechanism 2, a connecting rod assembly 3 and a cutting knife 4, and the power mechanism 1 and the eccentric wheel mechanism 2 are relatively slidingly arranged , the power mechanism 1 is connected to the eccentric wheel mechanism 2 through a transmission belt;

[0061] The power mechanism 1 includes a main shaft motor 1.1, and the main shaft motor 1.1 is fixed on one side of the vertical frame 7 provided above the CNC cutting bed, and the eccentric wheel mechanism 2 includes an eccentric shaft, and a balance wheel is arranged on the eccentric shaft device 12, and the balance wheel device 12 is connected with the eccentric shaft through transmission.

[0062] The eccentric shaft includes an eccentric main shaft 2.1, and an eccentric inertial shaft 2.2 for socketing the connecting rod assembly 3 is provided ...

Embodiment 2

[0077] like Figure 5 As shown, the present invention provides a cutting knife device with an eccentric balance mechanism, including a power mechanism 1, an eccentric wheel mechanism 2, a connecting rod assembly 3 and a cutting knife 4, the power mechanism 1 and the eccentric wheel mechanism 2 are relatively fixedly arranged, The power mechanism 1 is connected with the eccentric wheel mechanism 2 through gear meshing or transmission belt transmission;

[0078] The power mechanism includes a main shaft motor 1.1, and the eccentric wheel mechanism 2 includes an eccentric shaft, on which a balance wheel device 12 is arranged, and the balance wheel device 12 is connected to the eccentric shaft through transmission.

[0079] The eccentric shaft includes an eccentric main shaft 2.1, and an eccentric inertial shaft 2.2 for socketing the connecting rod assembly 3 is provided on the end face of the power output end of the eccentric main shaft 2.1. The eccentric distance D between the e...

Embodiment 3

[0094] The structure of this embodiment is similar to Embodiment 1, the difference is that the structure of the balance wheel device 12 is different, such as Figure 10 As shown, the balance wheel device 12 includes two balance wheels 12.1, the two balance wheels 12.1 are symmetrically arranged on the left and right sides of the axis line of the eccentric main shaft 2.1, and the two balance wheels 12.1 are arranged on the main shaft mounting seat 5 On the side close to the power output end of the eccentric main shaft 2.1 (that is, the side where the main shaft mounting seat 5 is away from the vertical frame), the two balance wheels 12.1 are in transmission connection with the second main shaft wheel 2.11 provided at the power output end of the eccentric main shaft 2.1; A second tensioning wheel 12.4 is provided above one balance wheel 12.1, and the second tensioning wheel 12.4 is fixedly arranged on the main shaft mounting base 5. The second tensioning wheel 12.4, two balance w...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26D1/08B26D5/16B26D7/26D06H7/00
CPCB26D1/085B26D5/16B26D7/2614D06H7/00
Inventor 张晓东
Owner WUHAN KEPUYINENG TECH CO LTD
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