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Machining method of three-dimensional closed impeller

A processing method and closed impeller technology, applied in metal processing equipment, manufacturing tools, milling machine equipment details, etc., can solve the problems of complex processing procedures, more rough materials, and low impeller strength and bottom, and achieve fewer processing procedures and higher processing quality Good, the effect of reducing the processing time

Active Publication Date: 2011-06-15
SHENYANG BLOWER WORKS GROUP CORP +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The above-mentioned traditional processing technology has more rough materials, resulting in waste of resources; the processing process is complicated, and there are welding defects; the welded impeller has low strength and poor corrosion resistance

Method used

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  • Machining method of three-dimensional closed impeller
  • Machining method of three-dimensional closed impeller
  • Machining method of three-dimensional closed impeller

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Embodiment Construction

[0033] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0034] like Figure 2a-2d As shown, the dotted line in the figure indicates the shape of the impeller, and the solid line indicates the forging blank. The whole process of the method for processing the ternary closed impeller of the present invention is divided into: forging blank ( Figure 2a ), the semi-finishing of the impeller profile ( Figure 2b ), the overall milling of the blade closed channel ( Figure 2c ) and contour finishing ( Figure 2d ). Specifically:

[0035] The overall forging 1 (such as Figure 2a shown) installed on the turning center of the CNC machine tool, such as Figure 2b As shown, the solid line in the figure is the turning processing diagram, the forging is turned, the axial feed is turned to the inlet side 3 of the blade channel, and the radial feed is used to turn the outer contour of the wheel cover;

[0036] like Fig...

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Abstract

The invention relates to a machining process of an impeller of a compressor, in particular to a machining method of a three-dimensional closed impeller, which is to clamp a semi-finish turned forge piece on a five-axis linked computer numerical control machining center to perform closed channel overall milling including drilling, coarse machining, semi-precision machining, back chipping and finish machining to mill the entire impeller and impeller channels. Compared with the conventional welding method, the machining method has the advantages that: the raw materials are saved and production cost is reduced as only one entire forge piece blank is used; the working efficiency is improved greatly because fewer machining process procedures are adopted and machining speed is high; the machining quality is high as quality defects caused by thermal deformation and welding are avoided; the machined impeller has high strength and high corrosion resistance; and the machining time of the impeller is reduced and the life index of a tool is improved because the flow the overall milling machining method is optimized according to the material, structure, specification and technical requirements of the workpiece and an applicable tool is configured according to different machining process procedures.

Description

technical field [0001] The invention relates to a processing technology of a compressor impeller, in particular to a processing method of a ternary closed impeller. Background technique [0002] A large number of ternary closed-type impellers are used in compressors. The characteristics of this impeller are: large blade distortion, narrow passage, and large curvature of the rotating surface of the shaft disk and cover disk, which are difficult to solve by traditional processing technology. [0003] like Figure 1a ~ Figure 1g As shown, the traditional three-way closed impeller is welded together after processing multiple pieces, and the blank is made of a wheel cover forging blank (such as Figure 1a Shown) and wheel disc forging hair damage (such as Figure 1b As shown), the technological process is as follows: first, the forging blank of the wheel cover is clamped on the lathe, and along the Figure 1a The dotted line in rough turning, semi-finishing turning to Figure ...

Claims

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Application Information

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IPC IPC(8): B23C3/18B23P15/02
Inventor 崔莲顺王学军戴继双富岩岩孙玉莹
Owner SHENYANG BLOWER WORKS GROUP CORP
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