Lowering device of impregnation tank workpiece basket

Abstract

The invention discloses a lowering device of an impregnation tank workpiece basket. The lowering device comprises a guide sleeve, a sliding rod, an air cylinder and a movable pin, wherein the air cylinder is connected with the movable pin, the air cylinder stenches to drive the movable pin to stretch, and the guide sleeve is internally provided with the sliding rod; one side of the guide sleeve, close to the movable pin, is provided with a hole, and one side of the sliding rod, close to the movable pin, is provided with a groove; the top end of the sliding rod is provided with a workpiece basket clamping groove with a Huff-structured clamping groove, and the Huff-structured clamping groove is arranged between two fixed clamping grooves; and the lower end of the guide sleeve is provided with a liquid outlet, the guide sleeve at the upper end of the liquid outlet is internally provided with a seal sleeve, and the guide sleeve is connected with the inner wall of an impregnation tank. The lowering device provided by the invention is automatic, does not need manual operation, is safe and convenient, reach the purpose that a workpiece is always in a vacuum state, guarantees the impregnation effect, and can remarkably improve the impregnation qualified rate as compared with the traditional process.

Description

technical field [0001] The invention belongs to the technical field of impregnation, in particular to a lowering device for an impregnation tank workpiece basket. Background technique [0002] Impregnation technology is a new technology developed by modern science and technology. The impregnation agent is used to infiltrate the porous workpiece under pressure, and after curing reaction, the purpose of filling the void defects in the porous workpiece is achieved. In recent years, with the continuous improvement of impregnation methods and processes, impregnation equipment has begun to be large-scale and semi-automated. The impregnation technology has been recognized by the military and cutting-edge technology departments of advanced industrial countries, and is widely used in the detection of casting defects. Sealing, permanent sealing of powder metallurgy parts. [0003] In the traditional impregnation process, the impregnation tank is equipped with a liquid storage tank se...

AI Technical Summary

Problems solved by technology

When the impregnation liquid enters the impregnation tank, it will be accompanied by air entry (especially when the liquid level of the impregnation liquid is lower than the liquid inlet), and the interior of the workpiece defect that was originally in a relatively vacuum (-0.098Mpa) will be re-filled. The air is completely or partially occupied, so that the impregnating liquid cannot enter the workpiece defect, and the effect of vacuuming is lost

Therefore, the impregnation effect is greatly reduced, and the pass rate of impregnation is greatly reduced.

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