Method for quickly measuring crankle angle of small blade profile
A blade and torsion technology, applied in the field of rapid measurement of small blade profile bending and torsion angle, can solve the problems of high loss of human resources, large investment in production equipment, etc., and achieve the effect of high work efficiency and convenient use.
Active Publication Date: 2019-09-20
HARBIN DONGAN ENGINE GRP
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Problems solved by technology
[0006] The purpose of the present invention is to provide a method for quickly measuring the bending and twisting angle of small-sized blades, which is mainly used in the high-efficiency measurement of blade bending and twisting angle data during the process of small precision forging blades, so as to solve the production equipment investment in the production and testing of aviation blades Huge technical problems with high human resource consumption
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[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0027] The features of various aspects of the embodiments of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be pra...
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The invention belongs to the technical field of precision testing, and particularly relates to a method for quickly measuring the crankle angle of a small blade profile. The method provided by the invention comprises the steps that the deviation values between a sample blade measuring point and a standard blade contour are detected in a three-coordinate instrument and an inductance meter; a mathematical compensation value is calculated to adjust the internal reference model of the inductance meter; the difference between the deviation values of the crankle angle of the three-coordinate instrument and the inductance meter is controlled within the tolerance requirement range of a product; and the rapid detection device inductance meter replaces the high-accuracy low-efficiency detection device which is the three-coordinate instrument to inspect the inter-process crankle angle deviation value. The method provided by the invention is particularly suitable for inter-process detection of the production of a blade with the chord length dimension between 30 mm and 50 mm, and has the advantages of convenient use and high work efficiency; mass blade production and the internal reference model ensure the accuracy required by detection; and the crankle angle deviation value which meets the tolerance required accuracy can be measured.
Description
technical field [0001] The invention relates to the technical field of precision testing, in particular to a method for rapidly measuring the bending and torsion angle of a profile of a small blade. Background technique [0002] The number of parts for a single engine of aviation blades is more than hundreds, and the qualified delivery rate of the blades is relatively low (the surface contour dimension is out of tolerance and scrapped, and the blade body profile is scrapped after manual correction of the bending and torsion angle). Regardless of whether the delivery is qualified or not, each blade needs to be inspected repeatedly more than 5 times during the production process. Considering the rework inspection task of the aeroengine blade, the measurement task is very heavy. The blade detection data between processes directly determines the process parameters adopted in the next process, which in turn affects the qualified delivery rate of blades. All aviation blade manufa...
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IPC IPC(8): G01B21/22G01B21/20G01B7/00
CPCG01B7/00G01B21/20G01B21/22
Inventor 金辰怀冯金波王宏林赵俊玲李洪春赵喜弘王铭轩
Owner HARBIN DONGAN ENGINE GRP