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Compressor blade runner surface profile tolerance detecting device and method

A blade flow channel and detection device technology, which is applied in mechanical counter/curvature measurement and other directions, can solve the problems of the complex shape of the blade flow channel surface, the inability to meet the measurement requirements with the metering tool, and the inability to solve the processing site inspection, etc. The effect of difficult problems, small errors, and high manufacturing costs

Active Publication Date: 2016-03-09
AECC AVIATION POWER CO LTD
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Problems solved by technology

Although three-coordinate measurement can be used, it cannot solve the problem of on-site inspection. Moreover, the shape of the blade runner surface is becoming more and more complex. Require

Method used

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  • Compressor blade runner surface profile tolerance detecting device and method
  • Compressor blade runner surface profile tolerance detecting device and method
  • Compressor blade runner surface profile tolerance detecting device and method

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Embodiment Construction

[0032] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0033] see Figure 1 to Figure 9 , a compressor blade runner surface profile detection device, including a support 12, the support 12 is provided with a positioning and clamping device 9 for fixing the compressor blade, and a standard profile block 11 for comparison with the compressor blade As well as the differential meter frame 10 used to detect the contour of the compressor blade runner surface, the positioning and clamping device 9 includes a bracket 15 fixed on the support 12, the middle part of the bracket 15 is provided with a through hole, and the through hole is inserted There is a clamping lever 20 that can provide clamping force for the bottom surface of the tenon of the compressor blade. A rotating shaft 18 is also fixed in the through hole. The clamping lever 20 can rotate around the rotating shaft 18. Two sides of the upper part of the bracket 15 are fi...

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Abstract

The invention discloses a compressor blade runner surface profile tolerance detecting device and a compressor blade runner surface profile tolerance detecting method. The compressor blade runner surface profile tolerance detecting device comprises a support, wherein a positioning and clamping device, a standard surface block and a differential meter frame are arranged on the support, the positioning and clamping device is used for fixing compressor blades, the standard surface block is used for being compared with the compressor blades, the differential meter frame is used for detecting runner surface profile tolerance of the compressor blades, the differential meter frame comprises a differential meter frame body, an upper measuring rod and a lower measuring rod which can move up and down are arranged on the differential meter frame body, the end part of the upper measuring rod is provided with a measuring head used for measuring runner surfaces of the compressor blades, the end part of the lower measuring rod is provided with a measuring head used for measuring surfaces of the standard surface block, a dial indicator used for displaying compressor blade runner surface profile tolerance deviation is arranged on the differential meter frame body, and a meter-correcting block used for carrying out zero setting on the dial indicator is arranged on the support. The compressor blade runner surface profile tolerance detecting device and the compressor blade runner surface profile tolerance detecting method achieve accurate measurement of the blade runner surface profile tolerance, have small error and high efficiency, and solve the detection difficulty of blade processing site.

Description

technical field [0001] The invention belongs to the field of mechanical processing technology equipment design, and in particular relates to a device and method for detecting the profile degree of a flow channel surface of a compressor blade. Background technique [0002] The runner surface of the compressor blade directly affects the dynamic performance of the engine, and its shape is a complex surface such as an inclined surface, a conical surface, and a meridional surface. figure 1 shown. In the past, in the process of processing, the profile of the runner surface was usually detected by the sample comparison method. The height difference between the runner surface and the surrounding standard samples was observed by human eyes, and whether the profile of the runner surface was qualified was judged based on experience. This method can only make qualitative judgments but cannot detect specific values, and the detection error is greater than 0.03mm. In recent years, the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/20
CPCG01B5/20
Inventor 王荣牛阿妮李莎薛波张玉宝吴芳王素娟罗旭
Owner AECC AVIATION POWER CO LTD
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