Valve welding and air tightness detection integrated device

Abstract

The invention belongs to the technical field of valve welding, and particularly relates to a valve welding and air tightness detection integrated device. The device comprises a workbench, a rotary table, a welding robot, a butt joint mechanism, a control and display mechanism, mounting frames, an air tightness detection mechanism, a leakage point detection mechanism and a water collection table. First air cylinders are started to drive two first plugs on the left side and the right side of the rotary table to move relatively, the two ends of a valve are plugged, an air pump is started, compressed air is injected into the valve through an air inlet pipe and an air groove to be pressurized, and meanwhile air injected by the valve enters an air outlet pipe through an air groove of the other first plug; then the air enters a digital display pressure gauge from a pipe opening of the air outlet pipe, the digital display pressure gauge displays the air pressure value, and if the air pressure value displayed by the digital display pressure gauge is equal to the air pressure value applied by the air pump, the air tightness of valve welding is good; and if the air pressure value displayed by the digital display pressure gauge is lower than the air pressure value applied by the air pump, the air tightness of valve welding is poor, and air pressure leakage exists.

Description

technical field [0001] The invention relates to the technical field of valve welding, in particular to an integrated device for valve welding and air tightness detection. Background technique [0002] The valve is a pipeline accessory used to open and close the pipeline, control the flow direction, adjust and control the parameters (temperature, pressure and flow) of the conveying medium. According to its function, it can be divided into shut-off valve, check valve, regulating valve and so on. [0003] In the production process of the valve, the valve body and the valve seat need to be welded. However, during the welding process, defects such as pores, cracks, looseness, and shrinkage are prone to occur. The above-mentioned defects are somewhat subtle and need to be inspected. , The existing valve welding equipment and testing equipment are split type, the equipment occupies a large space, prolongs the production line, and causes the whole process from welding to testing of...

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Problems solved by technology

[0003] In the production process of the valve, the valve body and the valve seat need to be welded. However, during the welding process, defects such as pores, cracks, looseness, and shrinkage are prone to occur. The above-mentioned defects are somewhat subtle and need to be inspected. , the existing valve welding equipment and testing equipment are split, the equipment takes up a lot of space, prolonging the production line, and causing the whole process from welding to testing of the valve to be cumbersome, consuming a lot of manpower and time

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