An automatic detection system for workpiece vacuum

Abstract

The invention provides an automatic workpiece vacuum degree detection system, comprising a control module, a detection module, a judgment module and at least one vacuum extraction module, wherein the detection module is used for acquiring the vacuum degree value of a detected workpiece in real time, synchronously generating a first vacuum degree curve, and calculating the slope of the first vacuum degree curve; when the slope is not smaller than a preset slope value, the detection module acquires current vacuum extraction time length; at least one time feature value is pre-stored in the judgment module; when the vacuum extraction time length is matched with a random time feature value, the judgment module judges that the workpiece is a qualified workpiece; the system can realize full-automatic control of the detection process, does not need manual intervention, reduces the labor cost, prevents additional error caused by artificial judgment, and effectively improves the accuracy of the detection result.

Description

technical field [0001] The invention relates to a detection device, in particular to an automatic detection system for workpiece vacuum. Background technique [0002] In industrial production, many fields have strict requirements on the airtightness of equipment or equipment parts, such as auto parts, electronic sensors, solenoid valves, refrigeration equipment and parts, etc. Therefore, in the production process, manufacturers Vacuum testing will be carried out on various equipment or workpieces produced by it to ensure that the products produced meet the airtightness requirements of its field. [0003] At present, in terms of the vacuum degree detection of the workpiece, the traditional manual detection method is still adopted. When the workpiece to be tested is connected to the vacuum pump, the workpiece is vacuumed through manual control, and the reading of the vacuum gauge is read. When the vacuum After the counting number reaches the standard value, remove the workpie...

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Problems solved by technology

[0003] At present, in terms of the vacuum degree detection of the workpiece, the traditional manual detection method is still adopted. When the workpiece to be tested is connected to the vacuum pump, the workpiece is vacuumed through manual control, and the reading of the vacuum gauge is read. When the vacuum After the counting number reaches the standard value, remove the workpiece. The whole process requires manual participation and depends on manual judgment, and every time the type of test workpiece is changed, the detection parameters need to be manually reset once, so that the vacuum detection process of the workpiece The degree of automation is low, the labor cost is high, and there are certain errors in the test results

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