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A method for manufacturing a blade auxiliary measuring base

A technology for auxiliary measurement and blades, which is applied in the direction of manufacturing tools, measuring devices, mechanical measuring devices, etc., can solve problems such as difficulty in installing blades, high production costs, and dimensional changes

Active Publication Date: 2020-10-23
CHINA HANGFA SOUTH IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The above-mentioned existing measurement methods are cumbersome and complicated. For example, when measuring the airfoil shape, use a vise to clamp the rolling rods 2 during the clamping process, and the level of the two rolling rods 2 will eventually affect the measured airfoil shape. The accuracy of the data, so the operator must have rich experience to ensure the efficiency of the process of clamping the roller bar 2; and for the special measuring tool for measuring the edge plate 12 and the lock piece groove 131, such as Figure 2b and 2c As shown, if the gap between the mounting grooves is too large, it will be difficult to ensure the consistent state of the blades after clamping. If the gap is too small, it will be difficult to install the blades. Therefore, it is difficult to manufacture the mounting grooves and the accuracy is difficult to guarantee.
And in order to avoid damage to the blade, usually, the hardness of the material used to manufacture the special measuring tool (especially the position of the installation groove) will be less than the hardness of the material of the blade 1, so it is also easy to use during use. Causes wear of the mounting groove, which causes dimensional changes
[0013] In the measurement process, since each measurement part requires special tooling, multiple sets of special tooling are required for each blade, resulting in high production costs
In addition, the large number of tooling will also lead to difficult management, and the difficulty of tooling maintenance will increase
And because the whole process is manual operation, the clamping measurement process of each size requires the operator to have more skilled operation skills
[0014] Existing measurement process operating inefficiently
For each batch of at least hundreds of precision castings of various blades in actual production, since each blade needs to be measured, the measurement process takes a long time, which will become one of the important factors that delay the entire production cycle

Method used

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  • A method for manufacturing a blade auxiliary measuring base
  • A method for manufacturing a blade auxiliary measuring base
  • A method for manufacturing a blade auxiliary measuring base

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Embodiment Construction

[0042] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings. Wherein, the same parts adopt the same reference numerals.

[0043] Figure 1a It is a schematic diagram of a three-dimensional structure principle of a first-stage turbine blade; Figure 2a for right Figure 1a Schematic diagram of the principle of blade size measurement for the first-stage turbine blade; Figure 3a It is a schematic diagram of the principle of using a base manufactured by a method of manufacturing a blade auxiliary measurement base according to a specific embodiment of the present invention for measuring the blade shape of a turbine blade; Figure 3b for right Figure 3a Schematic diagram of the principle of measuring the size of the flange of the turbine blade; Figure 3c for right Figure 3a Schematic diagr...

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Abstract

The invention discloses an impeller auxiliary measuring base manufacturing method. The method comprises the steps that A, a piece of casting equipment is provided, and an impeller is fixed; B, low-melting-point alloy casting is conducted in a casting cavity, and the integrally casting of a positioning plate and a rectangular block is conducted; C, a piece of melting shaping equipment is provided to allow the alloy covering a lock piece groove formed in the top of a tenon tooth to be melted, so that the lock piece groove is allowed to be exposed from the rectangular block, and the preparation of the rectangular block is completed. The method has the advantages that a standardized base is prepared so that the measuring working period of the impeller can be greatly shortened, and the production cost and maintaining cost can be reduced.

Description

technical field [0001] The invention relates to the technical field of aero-engine production, in particular to a base method for assisting positioning when measuring blade parts during the production process of turbine blades of small and medium-sized aero-engines. Background technique [0002] In the manufacturing process of aero-engines, the turbine blades can be cast and formed by precision casting of individual blade parts, and then the individual blade parts are assembled on the edge plate to form the whole turbine. [0003] Figure 1a It is a schematic diagram of a three-dimensional structure principle of a first-stage turbine blade; Figure 1b It is a schematic diagram of a three-dimensional structure principle of a two-stage turbine blade; Figure 1c It is a schematic diagram of the three-dimensional structure principle of a free turbine blade; Figure 2a for right Figure 1a Schematic diagram of the principle of blade size measurement for the first-stage turbine ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/02B22C9/06
CPCB22C9/068G01B5/02
Inventor 汤芬文婷王科昌屈涛王俊阳龚剑波
Owner CHINA HANGFA SOUTH IND CO LTD
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