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Method of full-automatic vibration processing work-piece by frequency spectrum analysis

A technology of vibration processing and frequency spectrum analysis, which is applied in the field of vibration stress relief, can solve the problems that the workpiece cannot be processed by vibration, and the vibration noise is large, so as to achieve the effect of eliminating residual stress, eliminating the effect and ensuring the constancy

Active Publication Date: 2007-02-28
BEIJING SEMBOO SCI & TECH CO LTD
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Problems solved by technology

However, when using this method to eliminate stress, there are relatively strict requirements on the position of the support point, excitation point, and sensor of the workpiece; the selection of the found frequency is mostly judged by experience, and it is almost impossible for high-rigidity and high-natural-frequency workpieces. Unable to handle with vibration, and the vibration noise is also very loud

Method used

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  • Method of full-automatic vibration processing work-piece by frequency spectrum analysis
  • Method of full-automatic vibration processing work-piece by frequency spectrum analysis
  • Method of full-automatic vibration processing work-piece by frequency spectrum analysis

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Embodiment Construction

[0036] As shown in Figure 1, the workpiece (2) is supported on the foundation (1) through an elastic support, such as a shock absorbing pad (3), and the vibrator (4) is rigidly fixed on the workpiece (2) except for weak points ( Such as the arbitrary position of position such as big sheet plane), acceleration sensor (5) is placed on the workpiece (2) and is far away from the arbitrary position of exciter, and exciter (4) and acceleration sensor (5) are also respectively connected with including single-chip microcomputer , the software system and the controller (6) of the control key are connected.

[0037] As shown in FIG. 2 , it is a step-by-step flowchart of a method for eliminating vibration stress of a workpiece in the prior art, and the method includes a workpiece processing preparation process and a workpiece processing operation process. The steps of the workpiece processing preparation process are: press the "Start" button to start the VSR device, press the "Technology...

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Abstract

The invention discloses the method for full-automatic vibration treating works with spectrum analyzer, comprising the following steps: 1 using the resilient support to support the work; 2 installing exciting device and sensing device on the work, and making exciting device and sensing device connect with controlling device; 3 opening the exciting device and sensing device, automatically carrying out Fourier spectrum analysis for works, getting free frequency and resonance frequency of works; 4 choosing, sorting and ordering the frequencies; 5 confirming the treating time; 6 treating the frequencies; 7 recording the results. The invention has no requirement for the location of supporting position, exciting device and sensing device position, and the process is full-automatic vibration treatment, so the treatment results is constant.

Description

technical field [0001] The invention relates to a method for eliminating residual stress of a workpiece, in particular to a method for eliminating stress through vibration. Background technique [0002] Vibration stress relief method, also known as vibration aging, is to vibrate the workpiece (including castings, forgings, welded components, etc.) at its natural frequency for several minutes to tens of minutes to eliminate its residual stress and stabilize the dimensional accuracy. way. At present, most of the vibration aging processes adopted in various countries are resonance aging. This process is to firmly clamp the vibrator at the proper position of the workpiece to be processed, adjust the excitation force according to the size and shape of the workpiece through the control part of the vibration equipment, and adjust the excitation frequency according to the natural frequency of the workpiece. Until the signal received by the vibration sensor (velocity meter or accel...

Claims

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Application Information

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IPC IPC(8): C21D10/00
Inventor 胡晓东
Owner BEIJING SEMBOO SCI & TECH CO LTD
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