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Blind hole spline coaxiality measuring method and measuring device thereof

A technology of coaxiality measurement and coaxiality, which is applied in angle/taper measurement and other directions, can solve the problems of low coaxiality measurement efficiency and large measurement error, and achieve the effect of simple and convenient measurement method, low cost and small error

Pending Publication Date: 2022-04-15
XIAN AERO ENGINE CONTROLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a blind hole spline coaxiality measuring method and its measuring device, which can solve the coaxiality between the inner spline pair in the deep blind hole of the slender shaft main shaft part and the inner spline in the cantilever distribution reference outer circle in the prior art. The problem of low measurement efficiency and large measurement error

Method used

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  • Blind hole spline coaxiality measuring method and measuring device thereof
  • Blind hole spline coaxiality measuring method and measuring device thereof
  • Blind hole spline coaxiality measuring method and measuring device thereof

Examples

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Effect test

Embodiment 1

[0030] refer to figure 1 The shaft is to be measured as the elongated spindle, and the outer side of the end of the axis is provided with a reference outer circle 5, and the top end of the reference outer circle 5 is provided between the top end of the pending axis, the outer diameter of the limit ring is greater than the outer circle. 5 outer diameter; there is a deeper blind hole along the axial direction of the shaft to be measured, and in the bottom of the blind hole 6, the inner spline 6 and the reference outer circle 5 are cantilever on the elongated spindle. Distribution, in assembly, the coaxial degree between the inner spline 6 and the reference outer circle 5 is required, that is, the blind hole spline is the same as the shaft, and the specialty of the splines and the reference outer circle structure. Moreover, the product requires the same shaft degree accuracy, and it is necessary to mark a range of homagical values. The coaxial measurement method and the measurement d...

Embodiment 2

[0051] refer to figure 2 and image 3 A blind hole spline coaxial measuring device, including the measuring body 1 and the spline mandrel 2, the measurement body 1 is opened, the step hole includes a guide hole 101 and a positioning hole 102 that open in the coaxial opening, and the guide hole 101 The inner diameter is larger than the inner diameter of the positioning hole 102, and the guide hole 101 is located at the top of the positioning hole 102; the spline core 2 includes an outer spline 201 and a guide station 202 located at the end of the outer splines 201, preferably a cylinder. An exhaust tank is opened on the outer side wall of the guide station to ensure that the spline core rod 2 is in line with the inner spline blind hole, and the air in the blind hole in the blind hole is discharged in time, the top surface and the guide station of the outer spline 201 201 202 is provided with a connecting axis, the spline of the outer spline 201 is designed according to the spline in...

Embodiment 3

[0060] refer to Figure 4 Unlike Example 1, the measuring body 1 includes a guide plate 103 and a positioning body 104, and the guide hole 101 is opened on the guide plate 103, and the positioning hole 102 is opened on the positioning body 104, and the reference outer circle 5 is passed through the positioning hole 102 and the positioning body. 104 mating, the limit ring is in contact with the upper end surface of the positioning body 104, and the limit ring is located in the guide hole 101 in the guide plate 103, and there is a plurality of corresponding pin holes and threaded holes, and the pockets, and the pockets 104 are opened. The corresponding pin block 3 and the screw 4 are connected to the threaded holes, and the guide plate 103 and the positioning body 104 are steadily joined by the pin block 3 and the screw 4 such that the guide hole 101 and the positioning hole 102 can maintain coaxial setting;

[0061] The pin holes and screw holes are disposed about the center interva...

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Abstract

The invention relates to the technical field of coaxiality measuring devices, in particular to a blind hole spline coaxiality measuring method and a measuring device thereof, a to-be-measured shaft is mounted on a measuring body, and a plurality of grouped spline mandrels designed according to different coaxiality given by a to-be-measured shaft product are used for sequentially measuring, so that the coaxiality of the to-be-measured shaft product is measured, and the coaxiality of the to-be-measured shaft product is measured. The coaxiality range value of the blind hole spline of the shaft to be measured is obtained through measurement, engineering measurement of the coaxiality actual value of the blind hole spline can be achieved according to actual application and the number of groups, the measurement mode is simple, assembly is simulated, the measurement time is shortened, the working efficiency during coaxiality measurement of the blind hole spline is improved, the measurement stability is high, and the measurement precision is high. The device is simple in structure, small in error, simple in structure, low in cost and suitable for popularization and application, and the problem of low measurement efficiency and large measurement error can be solved.

Description

Technical field [0001] The present invention relates to the field of coaxial degrees measurement, and in particular, a blind hole spline is a measuring method and a measuring device thereof. Background technique [0002] In the part of the fuel booster pump, there is a structure for the main shaft of the elongated shaft. There is a deep blind hole in one end of the main shaft, and an inner spline is provided in the deep blind hole. The main shaft is designed with an inner spline is a cantilever distribution. The outer circle is measured when assembled, the coaxial degree of the spline and the reference outer circle is required, so that the design requirements are met, otherwise it will affect the bond axis centerline of the spline axis centerline in any direction in any direction. Value, even affects the drive of the engine. [0003] At present, multiple conversion reference indirect measurements are used to perform coaxial measurements, and the measurement is difficult, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/25
Inventor 樊竹娟程润宝冯育敏孙莉洁张巧丽岳剑龙
Owner XIAN AERO ENGINE CONTROLS
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