CN212665286U

CN212665286U - Vacuum brazing clamp for flame tube head assembly

Info

Publication number: CN212665286U
Application number: CN202020473065.9U
Authority: CN
Inventors: 赵秀梅; 王一涛; 杨昕红
Original assignee: China Hangfa Gas Turbine Co ltd; Shenyang Polytechnic College
Current assignee: China Hangfa Gas Turbine Co ltd; Shenyang Polytechnic College
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2021-03-09
Anticipated expiration: 2030-04-03

Abstract

The utility model discloses a vacuum brazing clamp of a flame tube head assembly, which comprises a main body, wherein a first ring groove is arranged at the center of the inner side wall of the main body, the inner side wall of the first ring groove is slidably connected with a first ring-shaped slide block, a second ring groove is arranged at the center of the outer side wall of the main body, the inner side wall of the second ring groove is slidably connected with a second ring-shaped slide block, a plurality of first chutes and second chutes are arranged on the upper surface of the main body in a penetrating way, the inner side wall of the first chute is slidably connected with a first slide block, the inner side wall of the second chute is slidably connected with a second slide block, the upper side wall of the first slide block is fixedly connected with a first fixed block, the upper side wall of the second slide block is fixedly connected with a second fixed block, the fixed block of the utility model moves simultaneously, thereby a workpiece and, simultaneously, the inner surface and the outer surface of the workpiece are fixed, so that the workpiece is more firmly fixed, and the efficiency is improved.

Description

Vacuum brazing clamp for flame tube head assembly

Technical Field

The utility model relates to an aeroengine technical field, specific field is a vacuum brazing anchor clamps of flame tube head subassembly.

Background

The combustor is one of the important parts of an aeroengine, and is used for converting chemical energy in fuel oil into heat energy, and heating high-pressure air pressurized by a compressor to a temperature allowed before a turbine so as to enter the turbine and an exhaust device to expand and work. The reliability, economy and longevity of the engine are largely dependent on the reliability and effectiveness of the combustion chamber. In the development stage, the determination of the structural size and performance parameters of the combustion chamber and the realization of the function thereof are completed by the warmer. The warmer is designed by simulating one twentieth of the structure size of the actual combustion chamber, and aims to provide the required gas temperature and pressure instead of the actual combustion chamber. In the engine development stage, the application of the engine is more and more extensive. The short annular flame tube is the most important part of various types of heaters, and has the disadvantages of complex structure, high precision requirement and high difficulty. The short annular flame tube of a certain warmer is a very complicated thin-wall welded structural part, is formed by welding 17 parts, and adopts a large amount of advanced process technologies, five sections of flame tubes are formed by welding integral vacuum electron beams, the inner and outer molded surfaces of each section of flame tube are subjected to numerical control turning, more than 1000 gas film cooling holes are subjected to 4-coordinate numerical control electric spark machining, and a half-hole flanging technology is adopted for the first time, so that the research on the machining technology of the short annular flame tube has great practical significance.

At present, most of welding of the flame tube head adopts a vacuum brazing welding mode, when the method is adopted for welding, a workpiece needs to be fixed by using a clamp, the existing clamp is not firm enough in clamping, positioning is needed after clamping, and the efficiency is low, so that the vacuum brazing clamp of the flame tube head assembly is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vacuum brazing anchor clamps of flame tube head assembly to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a vacuum brazing clamp of a flame tube head assembly comprises a main body, wherein the main body is annular, a first annular groove is formed in the center of the inner side wall of the main body, the first annular groove and the main body are coaxially arranged, a first annular sliding block is connected to the inner side wall of the first annular groove in a sliding mode, threads are arranged on the upper surface of the first annular sliding block, a second annular groove is formed in the center of the outer side wall of the main body, a second annular sliding block is connected to the inner side wall of the second annular groove in a sliding mode, the second annular sliding block and the main body are coaxially arranged, threads are arranged on the upper surface of the second annular sliding block, a plurality of first sliding grooves and second sliding grooves penetrate through the upper surface of the main body, the first sliding grooves and the second sliding grooves respectively radially extend along the axis of the main body, and are communicated with the first annular groove, the second spout with the second annular groove intercommunication, the inside wall sliding connection of first spout has first slider, the inside wall sliding connection of second spout has the second slider, the first fixed block of last lateral wall fixedly connected with of first slider, the last lateral wall fixedly connected with second fixed block of second slider.

Preferably, a first rack is arranged on the side wall of one side, close to the axis of the main body, of the first annular slider, a first motor is fixedly connected to the inner side wall of the main body, a first gear is fixedly connected to an output shaft of the first motor, and the first gear is meshed with the first rack.

Preferably, a second rack is arranged on the side wall of one side, away from the axis of the main body, of the second annular sliding block, a second motor is fixedly connected to the outer side wall of the main body, a second gear is fixedly connected to an output shaft of the second motor, and the second gear is meshed with the second rack.

Preferably, the number of the first sliding block and the number of the second sliding block are respectively 4.

Preferably, the first sliding block and the corresponding second sliding block are respectively located on the same extension line of the axis of the main body.

Preferably, the surface of one side, far away from the axis of the main body, of the first fixing block is arc-shaped.

Preferably, the surface of one side of the second fixing block, which is close to the axis of the main body, is arc-shaped.

Compared with the prior art, the beneficial effects of the utility model are that: a vacuum brazing clamp for a flame tube head assembly is characterized in that an annular main body is arranged, a workpiece is fixed above the main body, and therefore the workpiece is convenient to position, a first annular sliding groove and a second annular sliding groove are respectively arranged on the side wall of the main body, and a first annular sliding block and a second annular sliding block which are provided with threads are respectively connected in a sliding mode, so that the first annular sliding block and the second annular sliding block can slide freely, the first sliding groove and the second sliding groove are arranged, the first sliding block and the second sliding block are matched through threads and a rack, when the first annular sliding block and the second annular sliding block rotate, the first sliding block and the second sliding block can be driven to move, so that the first fixing block and the second fixing block are driven to clamp the side wall of the workpiece, the workpiece is fixed, the workpiece and the fixing block moves simultaneously, so that the workpiece and the main body can be coaxial, and the positioning can be completed while the fixing is, the efficiency is improved.

Drawings

Fig. 1 is a schematic top view of a cross-sectional structure of a main body according to embodiment 1 of the present invention;

fig. 2 is a schematic front view of a cross-sectional structure according to embodiment 1 of the present invention;

fig. 3 is a schematic top view of a cross-sectional structure according to embodiment 1 of the present invention;

fig. 4 is a schematic top view of embodiment 1 of the present invention;

fig. 5 is a schematic top view of embodiment 2 of the present invention.

In the figure: 1-main body, 2-first annular groove, 3-first annular sliding block, 4-second annular groove, 5-second annular sliding block, 6-first sliding groove, 7-second sliding groove, 8-first sliding block, 9-second sliding block, 10-first fixed block, 11-second fixed block, 12-first rack, 13-first gear, 14-second rack, 15-second motor, 16-second gear, 17-third rack, 18-fourth rack and 19-first motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-4, the present invention provides a technical solution: a vacuum brazing clamp of a flame tube head assembly comprises a main body 1, wherein the main body 1 is annular, as shown in figure 1, a first annular groove 2 is formed in the center of the inner side wall of the main body 1, the first annular groove 2 and the main body 1 are coaxially arranged, a first annular sliding block 3 is connected to the inner side wall of the first annular groove 2 in a sliding mode, a lubricating groove can be formed in the surface of the first annular sliding block 3 to facilitate rotation of the first annular sliding block, the surface of the first annular sliding block 3 is in contact with the first annular sliding groove 2, threads are formed in the upper surface of the first annular sliding block 3, the center of the threads is the same as the axis of the first sliding block 3, a second annular groove 4 is formed in the center of the outer side wall of the main body 1, a second annular sliding block 5 is connected to the inner side wall of the second annular groove 4 in a sliding mode, and the, the upper surface of the second annular slide block 5 is provided with threads, as shown in fig. 3, the upper surface of the main body 1 is provided with a plurality of first sliding grooves 6 and second sliding grooves 7 in a penetrating manner, the first sliding grooves 6 and the second sliding grooves 7 are respectively arranged along the axis of the main body 1 in a radially extending manner, as shown in fig. 2, the first sliding grooves 6 are communicated with the first annular groove 2, the second sliding grooves 7 are communicated with the second annular groove 4, the inner side wall of the first sliding grooves 6 is connected with a first slide block 8 in a sliding manner, the inner side wall of the second sliding grooves 7 is connected with a second slide block 9 in a sliding manner, the first slide block 8 and the second slide block 9 can respectively slide in the first sliding grooves 6 and the second sliding grooves 7, as shown in fig. 4, the upper side wall of the first slide block 8 is fixedly connected with a first fixing block 10, and the upper side wall of the second slide block 9 is fixedly connected with a second fixing block 11, the workpiece is annular, the first fixed block 10 is located the internal surface of workpiece, the second fixed block 11 is located the surface department of workpiece, the lower surface of first slider 8 is equipped with third rack 17, the lower surface of second slider 9 is equipped with fourth rack 18, third rack 17 with first annular slider 3 meshes, fourth rack 18 with second annular slider 5 meshes.

Specifically, the first annular slider 3 is close to one side lateral wall of the axle center of main part 1 is equipped with first rack 12, the inside wall fixedly connected with first motor 19 of main part 1, the first gear 13 of output shaft fixedly connected with of first motor 19, first gear 13 with first rack 12 meshes, after first motor 19 starts, drive first gear 13 rotates, and then drive first annular slider 3 rotates.

Specifically, the second annular sliding block 5 is far away from the side wall of the axle center side of the main body 1, a second rack 14 is arranged on the side wall of the outer side wall of the main body 1, a second motor 15 is fixedly connected to the outer side wall of the main body 1, a second gear 16 is fixedly connected to an output shaft of the second motor 15, the second gear 16 is meshed with the second rack 14, and the second motor 15 is started to drive the second annular sliding block to rotate.

Specifically, the number of the first slider 8 and the number of the second slider 9 are 4.

Specifically, as shown in fig. 3, the first sliding block 8 and the corresponding second sliding block 9 are respectively located on the same extension line of the axis of the main body 1, so that the positions between the first fixed block 10 and the second fixed block 11 correspond to each other, thereby clamping the side wall of the workpiece, reducing the stress on the side wall of the workpiece, and preventing the workpiece from deforming.

The working principle is as follows: the utility model discloses when using, place the work piece in the upper end of main part 1, make first fixed block 10 be located the inboard of work piece, second fixed block 11 is located the outside of work piece, rotate first annular slider 3, first annular slider 3 is then through the screw thread of its upper surface, it slides to drive first slider 8, and then drive first fixed block 10 and remove simultaneously, make in close contact with between the lateral wall of first fixed block 10 and work piece, rotate second annular slider 5, control second fixed block 11 and work piece in close contact with, and then accomplish the fixed and location to the work piece, and is convenient and fast.

Example 2

Referring to fig. 5, the difference between the present embodiment and embodiment 1 is: the first fixing block 10 is arc-shaped on the surface of one side away from the axis of the main body 1.

Particularly, the second fixing block 11 is close to the surface of one side of the axis of the main body 1 is arc-shaped, and then can be attached to the surface of a workpiece, so that clamping is more stable.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A vacuum brazing jig for a liner head assembly, comprising a main body (1), characterized in that: the main body (1) is annular, a first annular groove (2) is arranged at the center of the inner side wall of the main body (1), the first annular groove (2) is coaxially arranged with the main body (1), a first annular slider (3) is slidably connected with the inner side wall of the first annular groove (2), threads are arranged on the upper surface of the first annular slider (3), a second annular groove (4) is arranged at the center of the outer side wall of the main body (1), a second annular slider (5) is slidably connected with the inner side wall of the second annular groove (4), the second annular slider (5) is coaxially arranged with the main body (1), threads are arranged on the upper surface of the second annular slider (5), a plurality of first sliding grooves (6) and second sliding grooves (7) penetrate through the upper surface of the main body (1), and the first sliding grooves (6) and the second sliding grooves (7) are respectively radially extended along the axis of the main body (1), first spout (6) with first ring channel (2) intercommunication, second spout (7) with second ring channel (4) intercommunication, the inside wall sliding connection of first spout (6) has first slider (8), the inside wall sliding connection of second spout (7) has second slider (9), the first fixed block (10) of last lateral wall fixedly connected with of first slider (8), the last lateral wall fixedly connected with second fixed block (11) of second slider (9), the lower surface of first slider (8) is equipped with third rack (17), the lower surface of second slider (9) is equipped with fourth rack (18), third rack (17) with first ring slider (3) meshing, fourth rack (18) with second ring slider (5) meshing.

2. The vacuum brazing fixture for a liner head assembly of claim 1, wherein: the first annular sliding block (3) is close to one side wall of the axis of the main body (1) and is provided with a first rack (12), the inner side wall of the main body (1) is fixedly connected with a first motor (19), an output shaft of the first motor (19) is fixedly connected with a first gear (13), and the first gear (13) is meshed with the first rack (12).

3. The vacuum brazing fixture for a liner head assembly of claim 1, wherein: the second annular sliding block (5) is far away from the side wall of one side of the axis of the main body (1) and is provided with a second rack (14), the outer side wall of the main body (1) is fixedly connected with a second motor (15), the output shaft of the second motor (15) is fixedly connected with a second gear (16), and the second gear (16) is meshed with the second rack (14).

4. The vacuum brazing fixture for a liner head assembly of claim 1, wherein: the number of the first sliding blocks (8) and the number of the second sliding blocks (9) are respectively 4.

5. The vacuum brazing fixture for a liner head assembly of claim 4, wherein: the first sliding block (8) and the corresponding second sliding block (9) are respectively positioned on the same extension line of the axis of the main body (1).

6. The vacuum brazing fixture for a liner head assembly of claim 1, wherein: the surface of one side of the first fixing block (10), which is far away from the axis of the main body (1), is arc-shaped.

7. The vacuum brazing fixture for a liner head assembly of claim 1, wherein: the surface of one side of the second fixing block (11), which is close to the axis of the main body (1), is arc-shaped.