Method and device for press mounting water pump impeller

Abstract

The invention discloses a pump impeller press mounting device in the pump processing technology field, and a press mounting method thereof; the pump impeller press mounting device is provided with a support plate and is characterized in that four guideposts are arranged on the support plate; a support spring is sheathed at the external part of each guidepost; locating plates are sheathed on the guideposts; the support springs are positioned between the support plate and the locating plates; the central position of the support spring is fixed with a locating block; the center of the locating block is provided with a flexible impeller positioning core axle; the central position of the locating plate is provided with a communicating pore and the impeller can pass through the communicating pore; the locating plate is provided with two positioning pins; positioning holes which are matched with the positioning pins are arranged on a pump component; the matching of the positioning pins and the positioning holes, and the matching of the end face of the pump component and the upper face of the locating plate form one-face two-pin positioning and cause the center of the pump component and the flexible impeller positioning core axle mechanism to be concentric. Compared with the prior art, the invention has compact structure, easy operation and high production efficiency, causes the impeller and a rotating shaft to be assembled accurately, and saves the manufacturing cost of a fixture.

Description

technical field [0001] The invention belongs to the technical field of water pump processing, and in particular relates to a water pump impeller press-fitting device and a press-fitting method thereof. Background technique [0002] The press-fitting of the impeller in the water pump assembly is generally the last process. The impeller is relatively small compared to the component. Generally, the component is placed on the workbench, the impeller is placed on the pressure head, and the pressure head touches the impeller to press down. The operation is convenient, but When the impeller is pressed into the pump shaft, it is easy to tilt during placement. The pressing process tilts with the placement direction, which often strains the mating surface of the hole shaft. When the impeller is pressed in place, the hole and the shaft cooperate to form point or line contact, and no surface contact is formed. . And this structure requires the impellers of the same shape and different ...

AI Technical Summary

Problems solved by technology

[0002] The press-fitting of the impeller in the water pump assembly is generally the last process. The impeller is relatively small compared to the component. Generally, the component is placed on the workbench, the impeller is placed on the pressure head, and the pressure head touches the impeller to press down. The operation is convenient, but When the impeller is pressed into the pump shaft, it is easy to tilt during placement. The pressing process tilts with the placement direction, which often strains the mating surface of the hole shaft. When the impeller is pressed in place, the hole and the shaft cooperate to form point or line contact, and no surface contact is formed.

Moreover, this structure requires the design of a dedicated pressure head for impellers with the same shape and different diameters, and different bases for different pulley shapes, which result in higher production costs.

The annual production cost is as high as 100,000 yuan, and it is inconvenient to change production, which affects efficiency

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