Online monitoring system, device and method of abrasive of high-pressure water-jet cutting machine

Abstract

The embodiment of the invention discloses an online monitoring system of abrasive of a high-pressure water-jet cutting machine, which comprises a control part, a data collection part and a pressure-measuring adapter, wherein, the pressure-measuring adapter is a pipeline which is connected with an abrasive conveying pipe of the cutting machine, the pressure-measuring adapter is provided with an air flow section and an abrasive flow section which respectively comprise a plurality of partition test small holes, and the abrasive enters into the abrasive conveying pipe through the abrasive flow section; the data collection part comprises a sensor which is arranged in the corresponding position of the partition test small hole and is used for collecting the pressure value of the corresponding position; and the control part is used for carrying out analysis and comparison on data collected by the data collection part and carrying out the corresponding control operation according to the analysis and comparison result, thereby realizing the real-time online monitoring of the cutting process of the high-pressure water-jet cutting machine and avoiding that high-pressure water jet damages a target workpiece caused by depletion or blockage of the abrasive during the conveying process of the abrasive.

Description

technical field [0001] The invention relates to the field of material processing, and more specifically relates to an on-line monitoring system, device and method for abrasives of a high-pressure water jet cutting machine. Background technique [0002] High-pressure abrasive water jet technology is a new technology developed in the past 20 or 30 years. [0003] figure 1 A specific example of the application of this technology is shown, and its specific implementation process is: pressurize ordinary tap water through a high-pressure pump, and force the high-pressure water 101 to be sprayed out through a high-pressure water jet nozzle 102 with a small diameter, thereby forming a A high-speed water jet 103, the speed of the high-speed water jet 103 can be as high as 1000 m / s. When the high-speed water jet 103 passes through the mixing chamber 104, the air in the mixing chamber 104 is taken out by the high-speed water jet 103, so that a partial vacuum occurs in the mixing cham...

AI Technical Summary

Problems solved by technology

However, in the process of cutting in the prior art, the abrasive in the abrasive tank is exhausted or the abrasive delivery pipe is blocked. If the abrasive is exhausted or blocked, the machine cannot stop in time, which means that there is no abrasive in the subsequent cutting process. involved, which will cause the target workpiece waiting to be cut to be damaged by the high-speed water jet

And this kind of damage often causes losses to users, especially when users cut some more expensive parts, the losses will be even greater

At present, the above problems are generally solved by monitoring and controlling by the operator, but limited by the reaction speed, it is too late when the operator notices the abnormal situation, and the target workpiece has been damaged

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