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Tool used for machining blade holes of axial flow pump impeller body

A pump impeller and processing shaft technology, applied in metal processing equipment, metal processing mechanical parts, positioning devices, etc., can solve problems such as concentricity, achieve accurate indexing, and solve the effect of measuring benchmark problems

Active Publication Date: 2014-04-09
ANHUI SHUNYU WATER AFFAIRS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a tool for machining the blade hole of the impeller body of the axial flow pump, which solves the problem of the concentricity between the blade hole to be processed and the lathe spindle and the measurement reference problem of the key dimension in the turning process

Method used

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  • Tool used for machining blade holes of axial flow pump impeller body
  • Tool used for machining blade holes of axial flow pump impeller body
  • Tool used for machining blade holes of axial flow pump impeller body

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with accompanying drawing:

[0018] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 The shown tooling for machining the blade holes of the impeller body of an axial flow pump includes a rotary body 1 fixed to the main shaft of a lathe, and the rotary body 1 is composed of a first plate 11 and a second plate 12 arranged in an L shape. The first plate 11 and the second plate 12 are castings formed by integral casting. The first plate 11 is provided with a first notch 2 matched with the main shaft of the lathe, and the center position of the second plate 12 is fixed with an indexing block 3. A fastening device 5 for fixing the workpiece 4 on the indexing block 3 is provided above the indexing block 3, and the outer side of the indexing block 3 is provided with first, second, third Layer positioning pin holes, the first layer of positioning pin holes include three first pi...

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Abstract

The invention relates to a tool used for machining blade holes of an axial flow pump impeller body. The tool comprises a rotary body fixed to a lathe spindle, wherein a scale dividing block is fixed on the rotary body, a fastening device used for fixing a workpiece on the scale dividing block is arranged above the scale dividing block, a first layer of positioning pin holes, a second layer of positioning pin holes and a third layer of positioning pine holes are formed in the outer side of the scale dividing block in the circumferential direction from inside to outside, and positioning pins matched with the positioning pin holes are arranged on the scale dividing block. According to the technical scheme, an installation method with the tool directly connected with a lathe is adopted, a rotating center in the direction same as the rotating direction of the lathe spindle is generated for each blade hole to be machined, and concentricity is achieved between the blade holes to be machined and the lathe spindle; by means of the cooperation between the scale dividing block and the rotary body and the utilization of a scale dividing mechanism, fast and accurate scale division is achieved easily when the blade holes rotate along with the scale dividing block during machining; a cylindrical section arranged on a pull rod enables the measuring basis of the critical dimension to be available during lathe machining.

Description

technical field [0001] The invention relates to an impeller body of an axial flow pump, in particular to a tool for processing blade holes of the impeller body of an axial flow pump. Background technique [0002] The impeller body of the axial flow pump is usually cast iron, which needs to be machined after casting. The blade mounting holes (generally three, four or five holes) on the impeller body are evenly distributed on the outer edge of the cylindrical surface, and each mounting hole has a different center of rotation instead of the same center of rotation. This structural feature determines its It is not possible to directly perform turning on the lathe, but to correct and process them one by one through the indexing plate on the boring machine. Machining blade holes on a boring machine has the disadvantages of difficult control and measurement of individual key dimensions, low efficiency, great dependence on operator skills, and high processing costs. Contents of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q3/12
CPCB23Q3/12
Inventor 丁伏光
Owner ANHUI SHUNYU WATER AFFAIRS CO LTD
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