CN216385454U

CN216385454U - Device for detecting symmetry degree of front joint and rear joint of aerospace seat

Info

Publication number: CN216385454U
Application number: CN202122941455.1U
Authority: CN
Inventors: 王继华; 周梅生; 黄水华; 彭斌; 田宇
Original assignee: China Helicopter Research and Development Institute
Current assignee: China Helicopter Research and Development Institute
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-04-26
Anticipated expiration: 2031-11-26

Abstract

The utility model belongs to a machining symmetry degree detection technology, and mainly relates to a device for detecting the symmetry degree of a front joint and a rear joint of an aerospace seat. Comprises a foundation plate (1), a front positioning block (2), a rear positioning block (3), a top block (4), a clamping nut (5), a compression screw (6) and a core rod (7); the symmetry degree detection device solves the problem that the symmetry degree of the front and rear support beam joints of the seat structure main body is difficult to detect, has simple structure, convenient operation and high measurement precision, and can be applied to the detection of the symmetry degree of the front and rear joints of similar products.

Description

Device for detecting symmetry degree of front joint and rear joint of aerospace seat

Technical Field

The utility model belongs to a machining symmetry degree detection technology, and mainly relates to a device for detecting the symmetry degree of a front joint and a rear joint of an aerospace seat.

Background

The seat structure main body is a core component of a certain type of aerospace seat, a front support beam connector and a rear connector are arranged on the main body, the symmetry degree requirement of the front connector and the symmetry degree requirement of the rear connector are high, but for the suspended front connector and the suspended rear connector, the symmetry degree of the front connector and the symmetry degree of the rear connector are difficult to accurately measure under the condition that no special detection tool exists.

Aiming at the problem that the symmetry of a front joint and a rear joint of a certain type of aerospace seat is difficult to detect, a set of simple and practical symmetry detection device is designed, a reasonable detection method is formulated, the symmetry detection is completely carried out on the detection device, and the detection of the symmetry of the front joint and the symmetry of the rear joint is well solved.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: the utility model provides a symmetry detection device of front and rear joints of a space flight seat, which aims to solve the detection of the symmetry of the front and rear joints.

The technical scheme of the utility model is as follows: a device for detecting the symmetry degree of front and rear joints of an aerospace seat comprises a base plate 1, a front positioning block 2, a rear positioning block 3, a top block 4, a clamping nut 5, a compression screw 6 and a core rod 7; a front positioning block 2 and a rear positioning block 3 are fixedly arranged on the foundation plate 1; the tightening nut 5 is screwed on the top block 4 and then screwed with the front positioning block 2 after being assembled; a clamping groove is processed on the rear positioning block 3, and the core rod 7 penetrates through the seat rear joint mounting hole and then is fixed in the clamping groove of the rear positioning block 3 through a compression screw 6.

Be equipped with measuring block 9 on foundatin plate 1, it is fixed through mounting screw 8, measuring block 9 can be used to the length dimension that supplementary measurement seat structure main part rear joint hole center connects the extreme point to preceding supporting beam.

The front positioning block 2 comprises a bottom plate and a vertical plate; the vertical plate is arranged in the middle of the bottom plate and is vertical to the bottom plate, and reinforcing ribs are arranged on two sides of the vertical plate.

The central axes of the H, I surfaces of the front positioning block 2 and the central axes of the M, N surfaces of the rear positioning block 3 are coincided.

The width of the front positioning block 2 at H, I two sides is smaller than the width of the seat structure body front support beam joint E, F two sides.

The rear positioning block 3 comprises a bottom plate and two vertical plates; the two vertical plates are respectively arranged on two sides of the bottom plate and are vertical to the bottom plate, and a reinforcing rib is arranged between the two vertical plates.

The width of the M, N two sides of the rear positioning block 3 is larger than the width of the A, B two sides of the rear joint of the seat structure body.

The upper surface of the top block 4 is a spherical surface and is in point contact with the main body of the seat structure.

Technical effects

The utility model has the beneficial effects that: the symmetry degree detection device solves the problem that the symmetry degree of the front and rear support beam joints of the seat structure main body is difficult to detect, has simple structure, convenient operation and high measurement precision, and can be applied to the detection of the symmetry degree of the front and rear joints of similar products.

Drawings

FIG. 1 is a schematic view of the seat structure (note: A, B, E, F is 4 detection surfaces, the seat structure of FIG. 1 is buckled on the detection device of FIG. 2 during detection);

FIG. 2 is a front view of the symmetry degree detection device for the front and rear joints of the aerospace seat;

FIG. 3 is a top view of the symmetry degree detection device for the front and rear joints of the aerospace seat (note: H, I, M, N is 4 reference planes);

FIG. 4 is a three-view illustration of the front spacer structure;

FIG. 5 is a three-view illustration of the rear spacer structure;

fig. 6 is a schematic view of the top block structure.

Wherein: 1-foundation plate 2-front positioning block 3-rear positioning block 4-top block 5-clamping nut 6-compression screw 7-core rod 8-screw 9-measuring block

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

as shown in fig. 2 and 3, the device for detecting the symmetry degree of the front and rear joints of the aerospace seat comprises a base plate 1, a front positioning block 2, a rear positioning block 3, a top block 4, a clamping nut 5, a compression screw 6 and a core rod 7; locating piece 2, back locating piece 3 before fixed mounting on foundatin plate 1 to 5 spiro couplings of lock nut are on kicking block 4, and after the dress is good again with preceding locating piece 2 spiro couplings, processing draw-in groove on the back locating piece 3, plug 7 passes behind the seat back connector mounting hole and fixes in the draw-in groove of back locating piece 3 through housing screw 6.

As shown in fig. 4, the front positioning block 2 includes a bottom plate and a vertical plate; the riser is installed in the middle part of bottom plate and perpendicular with the bottom plate, is equipped with the strengthening rib in the both sides of riser, the central axis on H, I two sides and the central axis coincidence on M, N two sides on the rear locating piece 3. H. The width of both sides I is less than the width of both sides of the front support beam joint E, F of the seat structure body.

As shown in fig. 5, the rear positioning block 3 includes a bottom plate and two vertical plates; the two vertical plates are respectively arranged on two sides of the bottom plate and are vertical to the bottom plate, and a reinforcing rib is arranged between the two vertical plates; m, N are wider on both sides than the seat structure body rear tab A, B.

As shown in fig. 6, the top surface of the top block 4 is spherical and is in point contact with the main body of the seat structure.

The using method of the utility model is as follows:

1. firstly, detecting and calibrating a symmetry degree detection device of a front joint and a rear joint of a seat, forming a detection report, and ensuring that symmetry degree detection can be carried out on a seat structure main body next;

2. during detection, a seat structure main body (figure 1) is reversely buckled on a detection device (figure 2), a rear joint of the seat structure main body is inserted with a core rod 7, the core rod 7 is placed in a clamping groove of a rear positioning block 3 and is positioned by a compression screw 6, a front supporting beam joint is placed above a front positioning block 2 and is supported by a top block 4, the upper surface of the top block 4 is spherical and is in point contact support with the seat structure main body, the height of the top block 4 is adjusted by threads, the height of the outer frame edge of the seat structure main body is guaranteed by height gauge measurement, and then the top block is fastened by a fastening nut.

3. And (3) taking M, N two surfaces of the rear positioning block 3 as a reference, respectively and tightly attaching two surfaces of the rear joint A, B to M, N two surfaces of the rear positioning block 3, naturally putting down the front support beam joint, and measuring the gap size between the two surfaces of the front support beam joint E, F and the two surfaces H, I of the front positioning block 2 by using a caliper with a meter, wherein the gap size difference is the symmetry degree of the front support beam joint and the rear joint.

Claims

1. A device for detecting the symmetry degree of a front joint and a rear joint of an aerospace seat is characterized by comprising a base plate (1), a front positioning block (2), a rear positioning block (3), a top block (4), a clamping nut (5), a compression screw (6) and a core rod (7); a front positioning block (2) and a rear positioning block (3) are fixedly arranged on the foundation plate (1); the tightening nut (5) is screwed on the top block (4) and then is screwed with the front positioning block (2) after being installed; a clamping groove is processed on the rear positioning block (3), and the core rod (7) penetrates through the seat rear connector mounting hole and then is fixed in the clamping groove of the rear positioning block (3) through a compression screw (6).

2. The device for detecting the symmetry degree of the front and rear joints of the aerospace seat as claimed in claim 1, wherein the base plate (1) is provided with a measuring block (9) which is fixed by a mounting screw (8), and the measuring block (9) can be used for assisting in measuring the length dimension from the center of the rear joint hole of the seat structure body to the joint endpoint of the front support beam.

3. The device for detecting the symmetry degree of the front joint and the rear joint of the aerospace seat as claimed in claim 1, wherein the front positioning block (2) comprises a bottom plate and a vertical plate; the vertical plate is arranged in the middle of the bottom plate and is vertical to the bottom plate, and reinforcing ribs are arranged on two sides of the vertical plate.

4. The device for detecting the symmetry degree of the front and rear joints of the spaceflight seat as claimed in claim 1, wherein the central axes of H, I on the front positioning block (2) and M, N on the rear positioning block (3) are coincident.

5. The device for detecting the symmetry degree of the front and rear joints of the aerospace seat as claimed in claim 1, wherein the width of the front locating block (2) at H, I both sides is smaller than the width of the seat structure body front support beam joint E, F both sides.

6. The device for detecting the symmetry degree of the front joint and the rear joint of the aerospace seat as claimed in claim 1, wherein the rear positioning block (3) comprises a bottom plate, two vertical plates; the two vertical plates are respectively arranged on two sides of the bottom plate and are vertical to the bottom plate, and a reinforcing rib is arranged between the two vertical plates.

7. The device for detecting the symmetry degree of the front joint and the rear joint of the spaceflight seat as claimed in claim 1, wherein the width of M, N two sides of the rear positioning block (3) is larger than the width of A, B two sides of the rear joint of the seat structure body.

8. The device for detecting the symmetry degree of the front and rear joints of the aerospace seat as claimed in claim 1, wherein the upper surface of the top block (4) is spherical and is in point contact with the main body of the seat structure.