High-precision impeller polishing equipment

Abstract

The invention provides high-precision impeller polishing equipment which is composed of an auxiliary part, a spiral mechanism part, a conversion mechanism part and a working area part, during working,a bevel gear is driven by a motor to rotate, the spiral mechanism is driven by the bevel gear to rotate, so that a nozzle is driven to move up and down, and on the other hand, a hydraulic cylinder pushes a rack to move left and right. The rack meshes with the gear to drive the conversion mechanism to rotate, so that the position of the nozzle relative to impellers is changed, and multi-angle machining of the impellers, especially dead zones on the back faces of blades, is achieved. The high-precision impeller polishing equipment is convenient to install, easy to operate, safe and reliable inwork and suitable for conducting abrasive flow precise machining on the impellers, the two impellers can be machined at the same time, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of abrasive flow processing, in particular to a high-precision impeller polishing equipment. Background technique [0002] The impeller is the key component of the centrifugal pump. The impeller of the centrifugal pump transfers the energy of the prime mover to the liquid in the pump through the action of centrifugal force, so that the speed and pressure of the liquid increase, and the liquid in the pump is discharged, and the liquid in the inlet pipeline is discharged. Suck it in. The material of the impeller is mainly gray iron 250, stainless steel and ductile iron 450, and 304 or 316 is commonly used in daily life. The structure of the impeller is complex. It is composed of several curved blades. The blades are non-developable and twisted ruled surfaces, so there are certain difficulties in traditional mechanical precision machining. Therefore, the use of abrasive flow precision machining technology can ...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to solve the problem of precision machining impeller, and provide a high-precision impeller polishing equipment, which uses the slide rail of the nut in the screw mechanism to slide in the chute of the screw shell and the coaxiality of the screw and the nut to avoid Deviation occurs during the movement to ensure that the axis of the nozzle and the axis of the centering bracket are in the same vertical plane, and the nozzle is rotated through the meshing of the rack and pinion in the conversion mechanism to change the relative position of the nozzle and the impeller, which can realize multi-angle processing, especially for processing On the back of the blade, use the screw fit of the support, pin, connecting frame and centering bracket to realize the accurate positioning of the nozzle, and use the four clips and nuts to fit the bracket, and the bracket and the stepped shaft to realize the clamping of the impeller, avoiding the impeller during processing. swing

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