Quick-vacuum-pumping negative-pressure dry type leakage detecting device

Abstract

The invention discloses a quick-vacuum-pumping negative-pressure dry type leakage detecting device. The quick-vacuum-pumping negative-pressure dry type leakage detecting device comprises a device body, a clamp assembly, a plugging assembly and a leakage detector, and further comprises a touch screen, wherein the clamping assembly is used for fixing a workpiece, the plugging assembly is used for sealing a vent hole of the workpiece, the leakage detector is used for detecting airtightness performance of the workpiece, the touch screen and the leakage detector are arranged in the device body, one end of the leakage detector is communicated with a vacuum pump through an air pipe, the other end of the leakage detector is communicated with the vent hole in the workpiece through the plugging assembly, the device body comprises a base plate and a cavity, the clamp assembly and the plugging assembly are arranged in the cavity, the plugging assembly comprises a plug, the plug is in sealing fit with the vent hole of the workpiece, a positioning block is arranged on the base plate, and the workpiece is arranged at a preset position on the base plate through the positioning block. Because the outward-expansion plug and the universal clamp assembly are adopted for the quick-vacuum-pumping negative-pressure dry type leakage detecting device, a bypass pipeline system is additionally arranged on the quick-vacuum-pumping negative-pressure dry type leakage detecting device, the quick-vacuum-pumping negative-pressure dry type leakage detecting device has the advantages of being high in production efficiency and utilization rate of equipment, and large in vacuum pumping rate of vacuum leakage detection.

Description

technical field [0001] The invention relates to a leak detection device, in particular to a fast-pump negative pressure dry leak detection device. Background technique [0002] Leak detection is sometimes called leak detection, and it is mainly used to test the sealing performance of parts. Many parts and assemblies in automobiles, such as cylinder blocks, cylinder heads, near-exhaust manifolds in parts, engines, radiators, water pumps in assemblies, etc., all use leak detection as an important part of the manufacturing process. A very important link, and a special inspection process is set up in the production line to control its quality. [0003] At present, the commonly used leak detection method is the direct pressure dry leak detection method. The dry-type leak detection equipment has a general-purpose cavity structure, that is, put all the fixtures into the cavity, and connect the circuits and gas circuits on the fixtures before operating. When replacing the fixture...

AI Technical Summary

Problems solved by technology

Therefore, the detection time is long, the efficiency is low, and it cannot fully meet the customer's working condition requirements

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