CN214199956U

CN214199956U - Gauge for testing symmetry between double involute spline teeth

Info

Publication number: CN214199956U
Application number: CN202023206201.7U
Authority: CN
Inventors: 刘学成; 刘涛; 苏轩; 赵喜平; 朱鹏江
Original assignee: Lanzhou Flight Control Co Ltd
Current assignee: Lanzhou Flight Control Co Ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-09-14
Anticipated expiration: 2030-12-25

Abstract

The utility model belongs to the involute spline inspection field relates to a components of a whole that can function independently assembled symmetry gauge that is used for inspection duplex symmetry between involute spline tooth and the tooth, and it comprises gauge base member one, gauge base member two, threaded locating pin, hexagon nut, fluting pan head screw, the utility model has the advantages that: first, simple structure, small. The second, split design makes the manufacture of the symmetry gauge simple and easy. Thirdly, the use is simple, the detection efficiency is high, professional inspectors are not needed, and only the processing personnel can immediately inspect whether the symmetry degree of the position is qualified or not at the station. Fourthly, due to the split design, when any one component is damaged, the measuring gauge can be maintained only without remanufacturing the measuring gauge, so that the service life of the measuring gauge is prolonged, and the cost of remanufacturing the measuring gauge is reduced. Fifthly, the method can be applied to the symmetry test between the teeth on the multi-involute spline shaft and the gear shaft.

Description

Gauge for testing symmetry between double involute spline teeth

Technical Field

The utility model belongs to the involute spline inspection field relates to a gauge that is used for inspection pair to involute spline tooth and symmetry between the tooth.

Background

In an airplane steering engine, a double involute spline shaft is often used. The centers of two groups of involute spline teeth on the part have the requirement of high-precision symmetry, which is an important design requirement for ensuring the performance parameters of the steering engine of the airplane. Therefore, after the two groups of involute spline teeth are machined, it is necessary to check whether the symmetry between the two groups of involute spline teeth meets the design requirements. The existing inspection technology is to measure by using a three-coordinate measuring instrument and adopting a measuring head to measure by adopting a large number of point coordinates of an involute spline tooth surface. The measurement has the problems of long time consumption and low inspection efficiency in the inspection process because a large number of coordinate points on the tooth surface of the involute spline need to be adopted, so the inspection technology is more suitable for inspecting the duplex involute spline shafts of single pieces and small batches and is not suitable for inspecting the duplex involute spline shafts of large batches.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the split assembled symmetry degree gauge is simple in structure, small in size, easy to manufacture, easy to maintain, simple to use, high in detection efficiency and suitable for symmetry degrees among large-batch double involute spline teeth.

The technical scheme of the utility model:

the utility model provides a gauge for examining symmetry between pair involute spline tooth and the tooth, includes gauge base member (1), gauge base member two (2), gauge base member one (1), gauge base member two (2) be hollow structure, gauge base member one (1), gauge base member two (2) connect and form hollow gauge base member, gauge base member one (1), gauge base member two (2) on set up connecting hole and the locating hole that a plurality of positions correspond, the connecting hole in set up screw (5), set up locating pin (3) in the locating hole, gauge base member one (1), gauge base member two (2) outer terminal surface all be provided with the spline tooth's socket, any tooth's socket in the outer terminal surface spline tooth's socket of gauge base member one (1) and the outer terminal surface spline tooth's socket of gauge base member two (2) coincide.

Further, the gauge base I (1) is of a cylindrical hollow structure.

Further, the gauge base II (2) is of a cylindrical hollow structure.

Furthermore, 2 connecting holes corresponding to the positions and 2 positioning holes corresponding to the positions are arranged on the first gauge base body (1) and the second gauge base body (2).

Furthermore, the surface of the end part of the positioning pin (3) is provided with an external thread which is used for matching with the nut (4) so that the positioning pin (3) is fixed in the positioning hole.

Furthermore, the screw (5) is a slotted pan head screw.

The utility model has the advantages that:

firstly, the structure is simple and the volume is small;

secondly, the split design enables the manufacture of the symmetry gauge to be simple and easy;

thirdly, the use is simple, the detection efficiency is high, professional inspectors are not needed, and only the processing personnel can immediately inspect whether the symmetry degree of the position is qualified or not at the station;

fourthly, due to the split design, when any one component is damaged, the measuring tool can be maintained only without remanufacturing the measuring tool, so that the service life of the measuring tool is prolonged, and the cost of remanufacturing the measuring tool is reduced;

fifthly, the method can be applied to the symmetry test between the teeth on the multi-involute spline shaft and the gear shaft.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a cross-sectional view B-B of FIG. 1;

FIG. 4 is a front view of a gauge base one;

FIG. 5 is a cross-sectional view E-E of FIG. 4;

FIG. 6 is a cross-sectional view D-D of FIG. 4;

FIG. 7 is a front view of a second gauge base;

FIG. 8 is a sectional view taken at H-H of FIG. 7;

FIG. 9 is a cross-sectional view I-I of FIG. 7;

FIG. 10 is a front view of the locating pin;

FIG. 11 is a front view of the nut engaged with the locating pin;

FIG. 12 is a front view of a slotted pan head screw;

FIG. 13 is a front view of a double involute spline shaft;

FIG. 14 is a right side view of FIG. 13;

fig. 15 is a three-dimensional view of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention, such as the shapes, structures, mutual positions and connection relationships of the components, functions and working principles of the components, manufacturing processes, operation and use methods, will be further described in detail with reference to the accompanying drawings, so as to help those skilled in the art to more completely, accurately and deeply understand the concept and technical solutions of the present invention:

the utility model provides a gauge for examining symmetry between pair involute spline tooth and the tooth, includes gauge base member one 1, gauge base member two 2, gauge base member one 1, gauge base member two 2 be hollow structure, gauge base member one 1, gauge base member two 2 connect and form hollow gauge base member, gauge base member one 1, gauge base member two 2 on set up the connecting hole and the locating hole that a plurality of positions correspond, the connecting hole in set up screw 5, set up locating pin 3 in the locating hole, gauge base member one 1, gauge base member two 2 outer terminal surface all be provided with the spline tooth's socket, any tooth's socket coincidence in 1 outer terminal surface spline tooth's socket of gauge base member and the two 2 outer terminal surface spline tooth's sockets of gauge base member.

The gauge base 1 has: a. the bolt comprises an involute internal spline, b, two positioning pin holes and c, two unthreaded holes for penetrating bolts. d. The central line of a tooth on the involute internal spline is superposed with the central line of the positioning pin hole. e. And marking the center of a tooth of the involute internal spline, which is superposed with the central line of the positioning pin hole.

The gauge substrate two 2 includes: a. the involute internal spline comprises an involute internal spline, b, two positioning pin holes and c, two threaded holes for screws. d. The central line of a tooth on the involute internal spline is superposed with the central line of the positioning pin hole. e. And marking the center of a tooth of the involute internal spline, which is superposed with the central line of the positioning pin hole.

The threaded dowel pin 3 has: threads for fastening.

The hexagon nut 4 adopts two GB 6172-86 standard hexagon nuts.

The slotted pan head screw 5 adopts two slotted pan head screws of GB 67-85 standard.

The manufacturing method of the utility model is as follows:

in the first step, a gauge base body 1 and a gauge base body 2 are respectively processed according to the figure. Note that: the central line of a tooth on the involute internal spline on the gauge base body I1 and the gauge base body II 2 is ensured to be coincided with the central line of the positioning pin hole. And marking lines are marked at the centers of the involute internal spline teeth.

The second step is that: and (3) coinciding the central lines of the two involute spline teeth with the marking lines of the gauge base body I1 and the gauge base body II 2.

The third step: the threaded dowel pin 3 is inserted into the dowel pin hole and tightened with a hex nut 4.

The fourth step: the slotted pan head screw 5 is screwed into the threaded hole until tightened.

The utility model discloses a use method is: aligning spline teeth needing to detect the symmetry degree on the duplex involute spline shaft with spline teeth with mark lines on the symmetry degree gauge, and then inserting the duplex involute spline shaft into the symmetry degree gauge until two groups of involute splines on the duplex involute spline shaft are completely matched with involute internal splines on the gauge base body I1 and the gauge base body II 2 respectively. If two involute splines on the duplex involute spline shaft can be simultaneously inserted into the symmetry gauge, the symmetry is qualified as a test result. Otherwise, it is not qualified.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without modification to the method and technical solution of the present invention, or the present invention can be directly applied to other occasions without modification, all within the scope of the present invention.

Claims

1. A gauge for checking the symmetry degree between double involute spline teeth is characterized in that the gauge comprises a gauge base body I (1) and a gauge base body II (2), the gauge base body I (1) and the gauge base body II (2) are both hollow structures, the gauge base body I (1) and the gauge base body II (2) are connected to form a hollow gauge base body, a plurality of connecting holes and positioning holes corresponding to the positions are arranged on the first gauge base body (1) and the second gauge base body (2), a screw (5) is arranged in the connecting hole, a positioning pin (3) is arranged in the positioning hole, the outer end faces of the gauge base body I (1) and the gauge base body II (2) are provided with spline tooth grooves, any one of the spline tooth grooves on the outer end face of the gauge base body I (1) is overlapped with any one of the spline tooth grooves on the outer end face of the gauge base body II (2).

2. A gauge for checking the symmetry between double involute spline teeth according to claim 1, wherein the gauge base one (1) is a cylindrical hollow structure.

3. A gauge for checking the symmetry between double involute spline teeth according to claim 1, wherein the second gauge base (2) is a cylindrical hollow structure.

4. A gauge for checking the symmetry degree between double involute spline teeth according to claim 1, wherein the gauge base (1) and the gauge base (2) are provided with 2 connecting holes corresponding to each other and 2 positioning holes corresponding to each other.

5. The gauge for checking the symmetry degree between double involute spline teeth and double involute spline teeth of claim 1, wherein the end surface of the positioning pin (3) is provided with external threads for matching with the nut (4) so that the positioning pin (3) is fixed in the positioning hole.

6. A gauge for checking the symmetry between double involute spline teeth according to claim 1, wherein the screw (5) is a slotted pan head screw.