CN215296706U - Sampling device for mechanical property sample of blade tenon of aero-engine - Google Patents

Sampling device for mechanical property sample of blade tenon of aero-engine Download PDF

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Publication number
CN215296706U
CN215296706U CN202121406138.3U CN202121406138U CN215296706U CN 215296706 U CN215296706 U CN 215296706U CN 202121406138 U CN202121406138 U CN 202121406138U CN 215296706 U CN215296706 U CN 215296706U
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blade tenon
aero
sampling device
engine
sample
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CN202121406138.3U
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涂乐锋
莫莉花
兰霞
侯金涛
林建军
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AECC Beijing Institute of Aeronautical Materials
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AECC Beijing Institute of Aeronautical Materials
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Abstract

The utility model relates to the field of machining and special machining of aero-engine material performance samples, in particular to a sampling device for aero-engine blade tenon mechanical performance samples; comprises an outer shaft sleeve (3), a rotary chuck (2), a locking butterfly bolt (1) and a fastening screw (7); the utility model adopts the profiling design according to the blade groove of the device for sampling the mechanical property sample of the blade tenon, realizes the close fit with the blade tenon, ensures the stability of the sample size precision in the sampling process, and completes the sample processing of all the blade tenons of the compressor engine by adjusting the rotation angle of the rotary chuck and the outer shaft sleeve; the utility model discloses simplify operation process, saved traditional anchor clamps assemble time, improved the machining efficiency of aeroengine blade tenon at mechanical properties sample, simultaneously, reduced traditional isolated plant's consumptive material purchase, saved scientific research manufacturing cost.

Description

Sampling device for mechanical property sample of blade tenon of aero-engine
Technical Field
The utility model relates to an aeroengine material performance sample machining and special type processing field especially relate to a sampling device for aeroengine blade tenon mechanical properties sample.
Background
The compressor blade is the most centralized key core part in the aero-engine, and is tightly assembled and connected with a mortise on a compressor disc through a tenon, more than sixteen thousand revolutions per minute are needed, more than six hundred working blades are provided, the stage pressurization and the stage temperature rise are needed, the harsh requirements of high speed, high temperature, high pressure, high load and high reliability are met, and various subjects such as theories, aerodynamics, materials, special processes and the like are needed to be integrated. Before a certain type of engine is put into operation for formal pilot run, important mechanical property test data in materials science need to be developed, the stability and the reliability of the mechanical property test data of the blade tenon are the basis for accumulating the data of the mechanical property test research curve of the engine, and the processing efficiency and the quality of a sample are important guarantees of the data reliability. Because the aero-engine is designed with weight requirements, the aero-engine is produced by integral precision castings, the machining allowance is extremely small, when an aero-engine blade tenon mechanical property sample with extremely complicated part shape is sampled, the machining allowance is extremely small, clamping and machining are extremely difficult, the working efficiency is low, the sample sampling qualification rate is low, and the requirement for sampling the blade tenon mechanical property samples in a large batch cannot be met.
Disclosure of Invention
The utility model aims to solve the above problem, the utility model discloses a universal device that is used for aeroengine blade tenon mechanical properties sample to take a sample, under this utility model device's effect, can quick clamping, accurate alignment part shape comparatively complicated aeroengine blade tenon mechanical properties sample's sample processing to obtain higher work efficiency and qualification rate.
The purpose of the utility model is realized through the following technical scheme: a sampling device for mechanical property samples of blade tenons of aero-engines comprises an outer shaft sleeve, a rotary chuck, a locking butterfly bolt and a fastening screw; the outer shaft sleeve is provided with a through hole on the upper end face, the rotary chuck is of a stepped shaft structure, the upper end of the rotary chuck is arranged in the through hole of the outer shaft sleeve, the lower end of the rotary chuck is provided with a positioning clamping groove, one side of the positioning clamping groove is provided with an elastic clamping piece, the elastic clamping piece and the rotary chuck are of an integrated structure, the outer shaft sleeve and the rotary chuck are fastened by the fastening screw, and the blade tenon is fixed in the positioning clamping groove by the locking butterfly bolt through the elastic clamping piece.
The elastic clamping piece is one part of the rotary chuck and comprises a thin wall part and a thick wall part, the length of the thick wall part is the same as that of the positioning clamping groove, the length of the thin wall part is greater than 1/2 of the length of the thick wall part, U-shaped grooves are formed in two sides of the thin wall part, and the width of each U-shaped groove is greater than or equal to 2 mm. (the thin wall part is beneficial to adjusting the width of the positioning clamping groove, and the thick wall part is beneficial to clamping the side surface of the blade tenon in a uniform stress manner.)
The positioning clamping groove is a stepped groove, and the shape of the positioning clamping groove is consistent with that of the blade tenon.
The stepped hole of the rotary chuck is in transition fit with the excircle of the outer shaft sleeve and can rotate around the outer shaft sleeve.
Two clamping reference plane surfaces parallel to the vice jaw are arranged on two sides of the outer shaft sleeve.
The circumference of the lower end of the outer shaft sleeve is provided with a positioning scale mark a, the upper end surface of the rotary chuck is provided with a positioning scale mark b, and the positioning scale mark a and the positioning scale mark b are used for adjusting the positioning of the rotary chuck and the outer shaft sleeve.
The length of the upper end of the rotary chuck is not higher than the upper surface of the outer shaft sleeve.
The utility model has the advantages of it is following:
(1) the utility model discloses device blade draw-in groove according to sample of blade tenon mechanical properties sample adopts the profile modeling design, has realized closely cooperating with the blade tenon, has guaranteed sample size precision's in the sample process stability, the utility model relates to a make simple, the device that the structure is good, once only drops into, permanent use.
(2) The utility model discloses application scope is wide, through the rotation angle of the rotatory chuck of adjustment and outer axle sleeve to the sample processingequipment of all blade tenons of compressor engine is accomplished in accurate quick location.
(3) The utility model discloses simplify operation process, saved traditional anchor clamps assemble time, improved the machining efficiency of aeroengine blade tenon at mechanical properties sample, simultaneously, reduced traditional isolated plant's consumptive material purchase, saved scientific research manufacturing cost.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the blade clamping of the present invention;
FIG. 3 is a schematic view of a blade clamping slot of the present invention;
in the figure: the method comprises the following steps of 1-locking a butterfly bolt, 2-rotating a chuck, 3-an outer shaft sleeve, 4-a vice clamping reference plane, 5-an exhaust hole, 6-a positioning scale line, 7-a fastening screw, 8-an elastic clamping sheet and 9-a positioning clamping groove.
Detailed Description
The following description is further made for the structural principle and the working principle of the present invention with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the embodiments.
As shown in fig. 1 to 3, a sampling device for mechanical property samples of blade tenons of aero-engines comprises an outer shaft sleeve 3, a rotary chuck 2, a locking butterfly bolt 1 and a fastening screw 7; through-hole 5 is established to 3 up end of outer axle sleeve, rotary chuck 2 is the step axle structure, and in the through-hole 5 of outer axle sleeve 3 was packed into to the upper end, the lower extreme was equipped with positioning groove 9, positioning groove 9 be the ladder groove, the shape is unanimous with the blade tenon shape.
An elastic clamping piece 8 is arranged on one side of the positioning clamping groove 9, the elastic clamping piece 8 and the rotary chuck 2 are of an integral structure, the outer shaft sleeve 3 and the rotary chuck 2 are fastened by the fastening screw 7, and the blade tenon is fixed in the positioning clamping groove 9 by the locking butterfly bolt 1 through clamping the elastic clamping piece 8; the stepped hole of the rotary chuck 2 is in transition fit with the excircle of the outer shaft sleeve 3 and can rotate around the outer shaft sleeve 3; two clamping reference plane surfaces 4 parallel to the vice jaw are arranged on two sides of the outer shaft sleeve 3; the circumferential surface of the lower end of the outer shaft sleeve 3 is provided with a positioning scale mark a6, the upper end surface of the rotary chuck 2 is provided with a positioning scale mark b10, and the positioning scale mark a6 and the positioning scale mark b10 are used for adjusting the positioning of the rotary chuck 2 and the outer shaft sleeve 3; the length of the upper end of the rotary chuck 2 is not higher than the upper surface of the outer shaft sleeve 3.
The elastic clamping piece 8 is one part of the rotary chuck 2 and comprises a thin wall part and a thick wall part, the length of the thick wall part is the same as that of the positioning clamping groove 9, the length of the thin wall part is greater than 1/2 of the length of the thick wall part, U-shaped grooves are formed in two sides of the thin wall part, and the width of each U-shaped groove is greater than or equal to 2 mm. The thin wall part is beneficial to adjusting the width of the positioning clamping groove 9, and the thick wall part is beneficial to uniformly stressing and clamping the side surface of the blade tenon.
The working process of the utility model is as follows: handle according to corresponding order the utility model discloses a device that is used for aeroengine tenon mechanical properties sample to take a sample, the combination assembles together, 2 transition fit of rotatory chuck in outer axle sleeve 3, find accurate rotatory chuck 2 and the corresponding scale mark 6 locking screw 7 in the 3 outsides of outer axle sleeve, 3 clamping of outer axle sleeve on the parallel jaw vice, make spark-erosion wire cutting machine bed molybdenum filament parallel with 9 both sides limits of quick constant head tank, it pushes away positioning channel 9 positions to put into the blade tenon, 8 tight blade tenons of tight cushion of rotatory locking spiral bolt 1 extrusion clamp are fixed with it. The device is clamped on a parallel jaw vice, and can be quickly positioned according to the corresponding position of the device, so that the operation process is simplified, the assembly time of the traditional clamp is saved, long-time waiting is not needed, the processing utilization rate of the wire cut electric discharge machine is effectively improved, and the sampling time of cutting mechanical property samples by the blade tenon of the aero-engine is shortened. The processing efficiency of sampling the mechanical property sample of the blade tenon of the aero-engine is improved, and the time period of the mechanical property test data of the blade tenon of the aero-engine is obviously shortened.
The above description is only for the preferred embodiments of the present invention, and is not intended to limit the present invention in any way. The person skilled in the art can, without departing from the scope of the invention, utilize the above-mentioned technical content to make numerous possible variations and modifications to the patented technical solution of the invention, or to modify equivalent embodiments with equivalent variations. Therefore, any modification, equivalent change and modification made by the above implementation according to the technology of the present invention all belong to the protection scope of the present invention.

Claims (7)

1.一种用于航空发动机叶片榫头力学性能试样的取样装置,其特征在于:包括外轴套(3)、旋转夹头(2)、锁紧蝶形螺栓(1)和紧固螺钉(7);外轴套(3)上端面设通孔(5),所述旋转夹头(2)为台阶轴结构,上端装入外轴套(3)的通孔(5)内,下端设有定位卡槽(9),定位卡槽(9)一侧设有弹性夹紧片(8),弹性夹紧片(8)与旋转夹头(2)为一体结构,所述紧固螺钉(7)将外轴套(3)与旋转夹头(2)紧固,所述锁紧蝶形螺栓(1)通过夹紧弹性夹紧片(8)将叶片榫头固定在定位卡槽(9)中。1. a sampling device for aero-engine blade tenon mechanical properties sample, it is characterized in that: comprise outer bushing (3), rotating chuck (2), locking butterfly bolt (1) and fastening screw ( 7); a through hole (5) is provided on the upper end face of the outer sleeve (3), the rotating chuck (2) is a stepped shaft structure, the upper end is inserted into the through hole (5) of the outer sleeve (3), and the lower end is provided with a through hole (5). There is a positioning slot (9), one side of the positioning slot (9) is provided with an elastic clamping piece (8), the elastic clamping piece (8) and the rotating chuck (2) are integrally structured, and the fastening screw ( 7) Fasten the outer bushing (3) and the rotating chuck (2), and the locking butterfly bolt (1) fixes the blade tenon in the positioning slot (9) by clamping the elastic clamping piece (8). middle. 2.根据权利要求1所述的一种用于航空发动机叶片榫头力学性能试样的取样装置,其特征在于:所述的弹性夹紧片(8)为旋转夹头(2)上的一部分,包括薄壁和厚壁两部分,厚壁部分长度与定位卡槽(9)长度相同,薄壁部分长度大于厚壁部分长度的1/2,且薄壁部分两侧为U型槽,U型槽宽度≥2mm。2. A sampling device for aero-engine blade tenon mechanical property samples according to claim 1, characterized in that: the elastic clamping piece (8) is a part on the rotating chuck (2), It consists of two parts: thin-walled and thick-walled. The length of the thick-walled part is the same as that of the positioning slot (9), the length of the thin-walled part is greater than 1/2 of the length of the thick-walled part, and the two sides of the thin-walled part are U-shaped grooves. Slot width ≥ 2mm. 3.根据权利要求1所述的一种用于航空发动机叶片榫头力学性能试样的取样装置,其特征在于:所述的定位卡槽(9)为阶梯槽,形状与叶片榫头形状一致。3 . A sampling device for mechanical property samples of aero-engine blade tenon according to claim 1 , wherein the positioning slot (9) is a stepped groove, and the shape is the same as that of the blade tenon. 4 . 4.根据权利要求1所述的一种用于航空发动机叶片榫头力学性能试样的取样装置,其特征在于:旋转夹头(2)的台阶孔与外轴套(3)的外圆过渡配合,并可绕外轴套(3)旋转。4. A sampling device for aero-engine blade tenon mechanical properties sample according to claim 1, characterized in that: the stepped hole of the rotating chuck (2) is matched with the outer circle of the outer sleeve (3) in transition fit , and can rotate around the outer sleeve (3). 5.根据权利要求1所述的一种用于航空发动机叶片榫头力学性能试样的取样装置,其特征在于:所述外轴套(3)两侧设有两个与虎钳口平行的夹紧基准平形面(4)。5. A sampling device for aero-engine blade tenon mechanical performance samples according to claim 1, characterized in that: two sides of the outer sleeve (3) are provided with two clamps parallel to the jaws of the vise Tighten the datum plane (4). 6.根据权利要求1所述的一种用于航空发动机叶片榫头力学性能试样的取样装置,其特征在于:外轴套(3)下端圆周面设有定位刻度线a(6),旋转夹头(2)上端面设有定位刻度线b(10)。6. A kind of sampling device for aero-engine blade tenon mechanical performance sample according to claim 1, it is characterized in that: the outer sleeve (3) lower end circumferential surface is provided with the positioning scale line a (6), the rotating clamp The upper end face of the head (2) is provided with a positioning scale line b (10). 7.根据权利要求1所述的一种用于航空发动机叶片榫头力学性能试样的取样装置,其特征在于:旋转夹头(2)上端的长度不高于外轴套(3)的上表面。7. A sampling device for aero-engine blade tenon mechanical property sample according to claim 1, characterized in that: the length of the upper end of the rotating chuck (2) is not higher than the upper surface of the outer sleeve (3) .
CN202121406138.3U 2021-06-23 2021-06-23 Sampling device for mechanical property sample of blade tenon of aero-engine Active CN215296706U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114670134A (en) * 2022-04-18 2022-06-28 中国航发沈阳发动机研究所 Aeroengine turbine guide blade sampling clamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114670134A (en) * 2022-04-18 2022-06-28 中国航发沈阳发动机研究所 Aeroengine turbine guide blade sampling clamp
CN114670134B (en) * 2022-04-18 2023-06-02 中国航发沈阳发动机研究所 Aeroengine turbine guide vane sampling clamp

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