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Built-in high-speed spindle double-sided on-line dynamic balance device and control system thereof

A high-speed spindle, built-in technology, applied in static/dynamic balance testing, measuring devices, instruments, etc., can solve problems such as large axial size and complex drive system

Inactive Publication Date: 2011-11-23
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the disadvantages of the existing high-speed spindle on-line dynamic balancing device, such as complex structure and drive system, large axial size, difficulty in application on existing machine tools, and mostly used for single-plane balancing, etc., and proposes a hydraulic The drive and friction torque realize differential speed and stability, and the high-speed spindle double-sided online dynamic balancing device and its control system can be placed inside the headstock

Method used

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  • Built-in high-speed spindle double-sided on-line dynamic balance device and control system thereof
  • Built-in high-speed spindle double-sided on-line dynamic balance device and control system thereof
  • Built-in high-speed spindle double-sided on-line dynamic balance device and control system thereof

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Embodiment Construction

[0055] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments

[0056] A built-in high-speed spindle double-sided online dynamic balance device, including two balance heads, the balance head adopts a symmetrical structure design, each balance head includes two balance discs to synthesize the unbalance amount that needs to be adjusted; its characteristics are:

[0057] Such as figure 1 As shown, the balance head includes two balance discs 1, meshing tooth seats 2, return reeds 3, oil bag 4, and oil bag holder 12; the balance discs 1 are symmetrically distributed on both sides of the meshing tooth seats 2, and the meshing tooth seats 2 and the balance plate 1 are meshed through meshing teeth. Three oil bag brackets 12 are symmetrically arranged inside the two balance plates 1. The oil bag 4 is connected to the through hole on the oil bag bracket 12. The oil bag 4 and the balance plate 1 A friction bearing ree...

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Abstract

A built-in high-speed spindle double-sided on-line dynamic balance device and a control system thereof belong to the fields of the precision and ultra-precision processing and the automation. The reconfiguration of the unbalance amounts of two balancing heads on a spindle system is controlled to change the unbalanced state of the system. The balance disc of each balancing head is pushed by an oil bag-friction resistant reed mechanism, wherein a 120-degree angle is formed between the oil bag and the friction resistant reed circumferentially. A reset reed is used to ensure that the balance discs are closely meshed with the spindle in normal operation. In the separation process, the reset reed is used to ensure that the balance discs perform differential motion relatively to the spindle stably. The control system can be used to realize the schemes such as multi-path signal simultaneous acquisition, signal parallel processing and multi-path signal parallel output and reduce the balance time; and the system combines the oil drainage advanced angle to output control signals, adjust the positions of the four balance discs respectively and increase the control accuracy.

Description

technical field [0001] The invention relates to an online dynamic balancing device for a high-speed spindle that can be placed inside a spindle box and a control system thereof, belonging to the fields of precision ultra-precision machining and automation. Background technique [0002] With the development of the international machine tool industry towards high speed, high precision and high efficiency. The unbalanced spindle system has increasingly become a key issue that restricts the performance improvement of machine tools in my country in terms of speed and precision. [0003] The unbalanced centrifugal force generated when the rotor rotates is proportional to the square of the rotating speed, and the rotating speed of the high-speed spindle system is very high. If the high-speed spindle system has a very small amount of unbalance, it will also generate a very large unbalanced centrifugal force, causing the vibration of the machine tool , Bearing wear and other failure...

Claims

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Application Information

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IPC IPC(8): G01M1/38
Inventor 伍良生张仕海
Owner BEIJING UNIV OF TECH
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