A frame-type blank casting cavity pressure detection device
A detection device and frame-type technology, which is applied in the direction of measuring the increase and decrease rate of the fluid, and using the liquid/vacuum degree to measure the liquid tightness, etc., can solve the problems of air leakage, high risk cost, and waste of finishing cost, etc., to achieve The effect of improving detection efficiency
Active Publication Date: 2017-12-08
KOCEL EQUIP
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Problems solved by technology
However, for rough castings, the surface of the opening of the cavity is rough and uneven. When this method is used for pressure testing, there will be water and air leakage at the opening of the cavity, making it impossible to perform pressure testing.
After all the castings are finished, the pressure inspection is carried out. The risk cost for the casting manufacturer is high, especially for iron castings. If leakage occurs, the castings will be scrapped, resulting in a waste of finishing costs.
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Embodiment Construction
[0013] Such as figure 1 — image 3 Shown is the frame-type blank casting die cavity pressure detection device of the present invention, and the casting 8 that the pressure detection device is used for detection is as figure 1 As shown, the projection shape of its profile along a certain direction is a polygon, such as a square or a rectangle, and at least one of the side walls of the casting 8 corresponding to each side of the polygon is provided with an opening communicating with the cavity 7 of the casting, The pressure detection device includes a polygonal frame plate 1 that is sleeved outside the side wall of the casting 8. The plate wall of the polygonal frame plate 1 is connected with a pressure plate 3 corresponding to the opening of the casting 8. A seal is provided between the pressure plate 3 and the outer periphery of the opening end of the casting. The rubber pad 2 of the opening of the casting, each plate wall of the polygonal frame plate 1 is threadedly connecte...
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The invention relates to a frame-type blank casting cavity pressure detection device in the casting cavity sealing performance detection technology, which comprises a polygonal frame plate set outside the side wall of the casting, and the plate wall of the polygonal frame plate is connected with the opening of the casting The corresponding pressure plate, a rubber pad for sealing the opening of the casting is provided between the pressure plate and the outer periphery of the opening end of the casting, and a number of strong pushing screws that press the pressure plate are threaded on the wall of the polygonal frame plate, one of which is the pressure plate An inlet and an outlet connected to the cavity of the casting are respectively provided on the top, the inlet is connected to the inlet pipe, and the outlet is connected to the pressure gauge through the outlet pipe. The device of the present invention is specially used to detect the sealing of the casting whose shape of the blank casting is projected along a certain direction as a polygon, and at least one of the side walls of the casting corresponding to each side of the polygon is provided with an opening communicating with the cavity of the casting performance.
Description
technical field [0001] The present invention relates to the sealing detection technology of the casting cavity, in particular to a frame-type blank casting cavity pressure testing device. At least one of the side walls is provided with an opening communicating with the cavity of the casting. Background technique [0002] For some castings with cavities in the foundry industry, the cavities are generally used as oil cavities, circulating water cavities, compression cavities, etc. Therefore, pressure inspection should be carried out on them during quality inspection to ensure that the cavities are well sealed and there is no leakage. risk. At present, the pressure test for this type of casting cavity is to process the bolt holes on the flange surface of the cavity opening after the casting is finished, and connect the plate and the opening of the cavity with bolts, and then perform hydraulic pressure testing. However, for rough castings, the surface of the opening of the cav...
Claims
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IPC IPC(8): G01M3/32
Inventor 刘杰
Owner KOCEL EQUIP