Device and method for detecting uniform distribution positions of blade-shaped holes in thin-wall fan-shaped section

Abstract

The invention discloses a device and method for detecting the uniform distribution positions of blade-shaped holes in a thin-wall fan-shaped section. The inner conical surface of an arc-shaped positioning block can be attached to the outer conical surface of a to-be-detected part, and the positions, close to the two ends, of the arc-shaped positioning block are provided with through grooves which are consistent with the theoretical uniform distribution positions of blade-shaped holes in the two ends of a to-be-measured part, a measuring block is arranged in each through groove in a sliding manner, the measuring end of each measuring block is the same as the theoretical shape of the blade-shaped holes of the to-be-measured part, and the size of the measuring end is equal to the result of the difference of the minimum entity of the blade-shaped holes and the uniform distribution position degree; guide holes consistent with the theoretical uniform distribution positions of the remaining blade-shaped holes of the to-be-measured part are formed in the arc-shaped positioning block and located between the two through grooves, a measuring pin is arranged in each guide hole in a sliding mode, and the diameter of the measuring end of each measuring pin is obtained by subtracting the uniform distribution position degree from the diameter of thesmallest blade-shaped hole inscribed circle in the corresponding position; and a movable pressing block is slidably arranged on the upper end face of a base. According to the device and method of the invention, the measurement of the uniform distribution positions of the blade-shaped holes of the thin-wall fan-shaped section can be rapidly and accurately realized.

Description

Technical field [0001] The present invention belongs to the technical field of air engine thin-walled sector segment detection, and in particular to a thin-walled segment leaf-type hole homogeneous position detecting device and a detection method. Background technique [0002] The thin-walled seaflic leaf plate belongs to the sheet metal punching, such as figure 1 As shown, the wall thickness is only 0.5 mm, and there is a leaf type hole for mounting the blade on its circumference. The leaf type hole is multi-use laser punching method, and the hiking hole of the leaf hole needs to be detected, due to the thin wall The impeller plate rigidity is large, deformed, and the three coordinates are used, and the measurement error is large and the efficiency is low, and the design of the designed dedicated detection device is required to perform limit measurement. Inventive content [0003] For the problems present in the prior art, the present invention provides a thin-walled segment le...

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Problems solved by technology

[0003] Aiming at the problems existing in the prior art, the present invention provides a detection device and a detection method for the evenly distributed position of the airfoil holes in the thin-walled sector, which can quickly and accurately realize the measurement of the uniformly distributed position of the airfoil holes in the thin-walled sector to solve the problem of Thin-wall fan-shaped airfoil has poor rigidity, large deformation, and difficult to detect measurement problems

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