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Method for manufacturing end plate of pump, and pump

A manufacturing method and technology for end plates, which are applied to pumps, components of pumping devices for elastic fluids, pump components, etc., can solve problems such as decreased sealing performance, and achieve the effect of ensuring sealing performance and reliably removing slumps.

Active Publication Date: 2018-10-23
TAIHO INDUSTRIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Here, when the workpiece with the sag remaining is used as an end plate as it is, the sealing performance of the joint surface (sealing interface) between the end plate and the opening of the case body decreases.

Method used

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  • Method for manufacturing end plate of pump, and pump
  • Method for manufacturing end plate of pump, and pump
  • Method for manufacturing end plate of pump, and pump

Examples

Experimental program
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Embodiment Construction

[0023] Hereinafter, the method of manufacturing the end plate of the pump of the present invention (hereinafter, abbreviated as "the method of manufacturing the end plate" as appropriate) and embodiments of the pump will be described. figure 1 A perspective front view of the impeller pump of this embodiment is shown. figure 2 An exploded perspective view of the impeller pump is shown. image 3 show figure 1 Sectional view of III-III direction.

[0024]

[0025] First, the configuration of the impeller pump of the present embodiment will be described. The impeller pump 1 is connected to a booster (not shown) of a braking device. The impeller pump 1 is included in the concept of "pump" in the present invention. The impeller pump 1 is the negative pressure source of the booster. The impeller pump 1 includes a housing 2 , a rotor 3 , and an impeller 4 .

[0026] Hereinafter, the axial direction (front-rear direction) refers to the axial direction of the casing 2 . The ci...

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PUM

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Abstract

The purpose of the present invention is to provide a method for manufacturing an end plate of a pump whereby sagging can be easily removed. The method for manufacturing the end plate (21) of the pump(1) includes a punching step of punching, out of a sheet material (B), a work (W) that is to provide the end plate (21) including a mounting seat (213) through which a fastener (90) is passed. The manufacturing method further includes a pressing step of forming a press-trace face (212) by pressing an outer edge of an outer face (210a), where, of upper and lower faces of the punched-out work (W), the face farther from a sagging (F) formed at a cut-face is the outer face (210a), and a face closer to the sagging (F) is an inner face (211a). The method is characterized in that a fastened section (212a) has a radial width (Ra) which is shorter than a radial width (Rb) of a non-fastened section (212b), where, of the press-trace face (212), the fastened section (212a) is a section disposed alongan outer edge of the mounting seat (213), and the non-fastened section (212b) is a section other than the fastened section (212a).

Description

technical field [0001] The present invention relates to a method for manufacturing an end plate of a pump and the pump. Background technique [0002] The casing of the impeller pump of Patent Document 1 includes a bottomed cylindrical casing body and an end plate that seals the opening of the casing body. The manufacturing method of an end plate has a punching process and a grinding process. In the punching process, a workpiece to be an end plate is produced by punching a sheet material. Sagging is formed on the cut surface of the workpiece after the blanking process. Here, when the workpiece with the sag remaining is used as an end plate as it is, the sealing performance of the joint surface (seal interface) between the end plate and the opening of the case body decreases. Therefore, in the grinding process after the punching process, the sag is removed by grinding the inner surface (surface on the joining surface side) of the workpiece. [0003] prior art literature ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/344F04C29/00
CPCF01C21/108F04C2/344F04C2230/20F04C2230/90F04C2240/30F04C2240/805F04C29/00F04C2230/604F04C2/086F04C18/086
Inventor 西田周平池田谕水野和哉中牟田谦
Owner TAIHO INDUSTRIES CO LTD