A method for detecting the working state of stamping production line equipment

A technology of production line equipment and working status, which is applied in mechanical equipment, metal processing equipment, fluid pressure actuation system testing, etc., can solve problems such as not very economical and undesirable, unable to predict production line failure trends, and single fault signal, etc., to achieve Reduce spare parts consumption costs and equipment maintenance costs, improve equipment maintenance and management efficiency, and extend the service life

Inactive Publication Date: 2021-08-03
戴腾清
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, intelligent control has been introduced into modern mechanical equipment, and the failure signal of the mechanical equipment is mostly captured to determine that the mechanical equipment has failed. However, on the one hand, the detection is based on the existence of a clear fault, and it is impossible to predict the failure trend of the production line. On the other hand, the fault signals introduced at present are often relatively single. They may be individual special case data in the normal production process, or data mutations caused by temporary changes in the environment. The above special case data or data mutations do not mean that the equipment is faulty. It is obviously not very economical and not advisable to carry out equipment maintenance for the special data brought by various emergencies in production, especially for stamping production lines with complex and numerous equipment

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  • A method for detecting the working state of stamping production line equipment

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Embodiment 1

[0028] The core equipment on the stamping production line is the press equipment, and the press equipment is mainly controlled by the brake and clutch inside the press equipment. Therefore, when building the detection method, the parameter detection and evaluation of the brake and clutch are focused. A method for detecting the working state of stamping production line equipment, which includes the following steps: Step 1, regularly collecting oil pressure parameters F (I, T), oil temperature parameters F (X, T) and oil pressure parameters of each unit brake and clutch on the stamping production line Shock vibration parameter F(Y, T), the above parameters all take different values ​​based on time or position, among them, the T variable is unified as the time variable, T=1, 2, 3, ..., t, t+1, the unit is machine Detection cycle, such as collecting data once a week, different values ​​of T represent various parameters of brakes and clutches at different times; I, X, and Y variable...

Embodiment 2

[0037] The basic implementation steps of this embodiment are the same as those in Embodiment 1. The oil pressure trend identification criterion involved can also be the single-point oil pressure time trend identification criterion, and the oil temperature increase identification criterion can be the single-point oil temperature change with time. The high recognition criterion, the vibration trend recognition criterion may be a single-point vibration time trend recognition criterion.

[0038] The difference is that the single-point oil pressure time trend identification criterion can be as follows: obtain the oil pressure abnormal point, and the oil pressure abnormal point is that the oil pressure parameters collected at a single point are higher than the oil pressure parameters at two adjacent time points. The threshold h is lower than the threshold h at the same time as the oil pressure parameters at two adjacent time points, and the occurrence frequency of oil pressure abnorm...

Embodiment 3

[0044] The oil pressure trend recognition criterion involved in this embodiment is also the single point oil pressure time trend recognition criterion, the oil temperature rise recognition criterion is the single point oil temperature rise with time recognition criterion, and the vibration trend recognition criterion is the single point Point vibration time trend identification criterion.

[0045] The second embodiment studies the abnormality of the occurrence frequency of data sudden convex points and sudden concave points, and the present embodiment studies the number of abnormal changes in the overall increase or decrease of data. The single-point oil pressure time trend identification criterion can be as follows: obtain the oil pressure abnormal point, and the oil pressure abnormal point is a sudden change in the average oil pressure parameter collected at a single point. If the number of oil pressure abnormal points reaches n, the criterion is established. During specific...

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Abstract

The invention discloses a method for detecting the working state of equipment in a stamping production line, which includes the following steps: Step 1, collecting the oil pressure parameters F(I, T) and oil temperature parameters F(X, T) of the brakes and clutches of each unit on the stamping production line at regular intervals. ) and shock vibration parameters F(Y, T); step 2, according to the oil pressure trend identification criterion, the oil temperature increase identification criterion, and the vibration trend identification criterion, judge whether the relevant parameters collected in step 1 meet the criterion, When all are in compliance, a signal of suspected abnormality of the brake and clutch is output to remind the staff to check the stamping equipment. This method is used to determine the failure trend of the brake and clutch through the combination of abnormal conditions of multiple parameters, which is different from the traditional single parameter. The method of judging the working status of the equipment can avoid the misjudgment of the equipment caused by individual abnormal data that normally exists in the production process. Through the judgment of the equipment failure trend, the working status trend of the stamping equipment can be predicted and the equipment management can be optimized.

Description

technical field [0001] The invention belongs to the technical field of equipment detection and maintenance, and in particular relates to a method for detecting the working state of stamping production line equipment. Background technique [0002] As an important application carrier of stamping equipment, the stamping automation production line plays an extremely important role in my country's automobile industry system. However, with the improvement of production efficiency, the stamping automation production line is increasingly facing the risk of shutdown and line stop. How to efficiently control the equipment? It is imminent to reduce the downtime rate. Mastering the health status of equipment usually includes two types of predictive maintenance and preventive maintenance. Preventive maintenance is to organize maintenance plans according to a fixed period. At present, most of the maintenance plans of stamping production lines are preventive maintenance, but the maintenance...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D66/00F15B19/00B21C51/00
CPCB21C51/00F15B19/005F15B2211/87F16D66/00F16D2066/001F16D2066/005F16D2066/008
Inventor 戴腾清
Owner 戴腾清
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