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Forging press workpiece-deficient detecting method

A detection method and technology for forging presses, applied in forging presses, forging presses, forging/pressing/hammer devices, etc., can solve the problems of not really reflecting the actual state of the stamping station, failure of photoelectric sensors, excessive dust, etc., to avoid leakage Phenomenon reporting, significant creativity, and accurate detection time

Inactive Publication Date: 2009-07-01
SUZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This detection method has the following problems: ①Due to the harsh environment of the production workshop and a lot of dust, after a certain period of time, the photoelectric sensor will fail due to dust accumulation, and false alarms will occur; , this is because there is a certain distance between the forging position and the feeding port, and the photoelectric detection does not really reflect the actual state of the stamping station, resulting in false positives

Method used

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  • Forging press workpiece-deficient detecting method
  • Forging press workpiece-deficient detecting method
  • Forging press workpiece-deficient detecting method

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Example 1: see attached figure 1 to the attached Figure 4 As shown in the figure, a method for detecting missing parts of a forging press is used for the detection of the processing and forming of an aluminum casing of a cylindrical electrolytic capacitor, and the situation of missing parts is judged by detecting the working current of the forging press, including the following steps:

[0024] (1) A set value is given so that it is greater than the true RMS value of the surge current when the forging press is punching with missing parts and less than the true RMS value of the surge current when the forging press is effectively punching;

[0025] (2) In a working cycle of the forging press, sequentially detect the true effective value of the working current of the forging press in each continuous current cycle, and compare with the above-mentioned set value;

[0026] (3) If there is at least one detected current value greater than the set value in step (2), directly en...

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Abstract

The invention discloses a test method for the lacking piece of the forging machine. It estimates the lacking piece condition by testing the working current of the forging machine. It includes the following process: (1) setting an initial value which is bigger than the true virtual value of the lacking piece punching but smaller than the surge current true virtual value of the effective punching; (2) detecting the true effective value in every current period and compare to the setting value; (3) if at least one testing current in the process (2) is bigger than the setting value, than go to the next process or output the alarming signal; (4) repeating the process (2) and (3) to reach the testing continuously. The invention can determine the punching state in the practical punching position of the forging machine to avoid the leaking report.

Description

technical field [0001] The invention relates to a method for detecting missing parts of a forging press, in particular to a method for monitoring the situation of waste products due to lack of materials in the process of forging and pressing workpieces. Background technique [0002] Forging press is a kind of common electromechanical equipment, which is widely used in the field of mechanical workpiece forming and processing. It consists of two parts, one part is fixed on the hammer head, which is consistent with the movement of the hammer head, and the other part is fixed on the working table. When using, first put the workpiece to be forged into the mold cavity on the worktable, start the power mechanism, drive the hammer head to move along the rack guide rail to the mold on the worktable, the hammer head mold is pressed against the workpiece, and the hammer head mold is pressed against the workpiece. Under the action of the workpiece, the workpiece is deformed to achieve ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R19/00G01R19/02B21J9/00
Inventor 陈小平檀永
Owner SUZHOU UNIV
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