Small-size impeller and five-axis milling method thereof

A milling processing, small size technology, applied in the direction of metal processing equipment, milling machine equipment, manufacturing tools, etc., can solve the problems of poor gear quality, high processing cost, low efficiency, etc., to ensure feasibility, good quality of finished products, and high quality Effect

Pending Publication Date: 2020-07-24
SHANGHAI JIAN QIAO UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a small-sized impeller and its five-axis milling method in order to overcome the above-mentioned de

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  • Small-size impeller and five-axis milling method thereof
  • Small-size impeller and five-axis milling method thereof
  • Small-size impeller and five-axis milling method thereof

Examples

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[0073] Example:

[0074] like figure 1 A small-sized impeller shown includes a main shaft 1, a gear 2 arranged on the top of the main shaft 1, a sleeve 3 sleeved outside the main shaft 1, and a plurality of blades 4 evenly arranged on the side of the sleeve 3 along the circumferential direction. A reinforcing rib 5 is provided between two adjacent blades 4, the main shaft 1, the gear 2 and the sleeve 3 are arranged coaxially, and the main shaft 1, the gear 2, the sleeve 3, the blade 4 and the reinforcing rib 5 are integrally formed.

[0075] Wherein, the center of the main shaft 1 is provided with a main shaft through hole 6 along the axial direction. The outer diameter of the gear 2 is the same as that of the main shaft 1 . The outer surface of the top of the main shaft 1 is uniformly provided with a plurality of tooth grooves 7 along the circumferential direction, forming the gear 2 . The thickness of the rib 5 is smaller than the height of the blade 4 . The bottom surfa...

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Abstract

The invention relates to a small-size impeller and a five-axis milling method thereof. The impeller comprises a spindle, a gear arranged at the top of the spindle, a sleeve arranged outside the spindle in a sleeving mode and a plurality of blades evenly distributed on the side face of the sleeve in the circumferential direction, reinforcing ribs are arranged between every two adjacent blades, andthe spindle, the gear and the sleeve are coaxially arranged; the spindle, the gear, the sleeve, the blades and the reinforcing ribs are integrally formed; and the impeller is machined through a five-axis numerical control machine tool, and the machining method comprises the steps of workblank pretreatment, modeling, tool path planning, rough machining, semi-finish machining, finish machining and the like. Compared with the prior art, the method has the advantages that local high-precision milling of the impeller can be realized, and the method is applicable to machining of various impellers with different parameters and has the characteristics of high machining efficiency, high precision, good finished product quality and the like.

Description

technical field [0001] The invention belongs to the technical field of impeller processing, and relates to a small-sized impeller and a five-axis milling method thereof. Background technique [0002] With people's relentless pursuit of high power, high output and high reliability, Pelton turbines have been continuously developed and innovated, and the structure and processing methods of their parts are also constantly changing. From riveting and welding to integral casting and forging, from pure manual grinding to CNC machining, in the future, while improving work efficiency, Pelton turbines will develop in the direction of high water head and large capacity, but the processing method of the curved surface of its blades is in the process of improvement. However, some bottlenecks were encountered in the process. [0003] At present, the application of small-size impellers is becoming more and more common. How to design the structure of small-size impellers to meet the needs ...

Claims

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Application Information

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IPC IPC(8): F03B1/00B23C3/18
CPCB23C3/18F03B1/00Y02E10/20
Inventor 刘永峰陈立景张庆伟
Owner SHANGHAI JIAN QIAO UNIV
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