Fixing and sealing device for watertightness and airtightness detection table

Abstract

The invention relates to the field of detection, and particularly discloses a fixing and sealing device for a watertightness and airtightness detection table. The device comprises a rack, a workbench,a sealing mechanism and a clamping mechanism; the workbench is fixed on the rack; the workbench is connected with a screw rod, a pressing block is arranged on the periphery of the screw rod, a threaded pair is formed by the pressing block and the screw rod, a sliding chute is formed in the rack, an air inlet cylinder is fixed on the rack, a sliding block is fixed on the pressing block, and an airinlet rod is fixed on the pressing block; wherein the clamping mechanism comprises a guide sleeve assembly, a clamping air cylinder, a connecting rod and a pressing plate; the air inlet air cylinderis communicated with the clamping air cylinder, and a sealing strip is fixed on the pressing plate; the guide sleeve assembly comprises a guide sleeve and an air bag, the guide sleeve and the screw rod form the threaded pair, and an air inlet is formed in the air bag; the sealing mechanism comprises a sealing hydraulic cylinder and a sealing plate, the sealing hydraulic cylinder is located above the workbench, and sealing ports are formed in the pressing plate and the sealing plate. According to the scheme, the detected water is prevented from entering the workpiece from the opening while theworkpiece is clamped.

Description

technical field [0001] The invention relates to the detection field, in particular to a water-tightness and air-tightness detection device. Background technique [0002] A workpiece with an inner cavity is in the shape of a cube. The centers of multiple sides of the workpiece are provided with outwardly protruding openings, and the openings on the two opposite sides are symmetrical. This kind of workpiece is generally formed by casting. During casting, the molten metal is injected into the mold, and then the mold is cooled, so that the molten metal in the mold can be rapidly cooled and formed. However, when the cooling is uneven, cracks are prone to appear on the workpiece, and the cracked workpiece is used during use. It is easy to leak air or liquid, so the workpiece with cracks is a defective product. However, some cracks are small and difficult to find with the naked eye, so it is necessary to test the watertightness and airtightness of the workpiece. [0003] At prese...

AI Technical Summary

Problems solved by technology

During the detection process, it is necessary to isolate the workpiece opening from the water used for detection, so as to prevent water from entering the workpiece from the opening of the workpiece, which will interfere with the water tightness detection; and then fix the workpiece, but there are many openings on this kind of workpiece. Closing one by one will waste a lot of time and make the detection efficiency low

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