CN110893589A

CN110893589A - Sealing clamp for complex-structure casing parts

Info

Publication number: CN110893589A
Application number: CN201911179833.8A
Authority: CN
Inventors: 王传滨; 马镇镇; 杨文学
Original assignee: AECC Shenyang Liming Aero Engine Co Ltd
Current assignee: AECC Shenyang Liming Aero Engine Co Ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-03-20

Abstract

The invention discloses a sealing clamp for a complex-structure casing part, which comprises a sealing clamp for the complex-structure casing part

The clamp comprises a clamp body for sealing and an adjustable plug for sealing a radial hole of a complicated-structure casing part. By arranging the double-layer gland and the adjustable plug, the production efficiency is greatly improved, and the inspection quality is effectively ensured. The working strength of an operator is reduced, the quality and the processing efficiency of parts are improved, and the backward situation of the original processing mode is eliminated.

Description

Sealing clamp for complex-structure casing parts

Technical Field

The invention relates to casing processing in the field of machine manufacturing, and particularly provides a sealing clamp for a casing part with a complex structure, which is suitable for processing the casing part with a large-scale complex casting structure.

Background

In the machining process of parts with complex-structure casings, the inner cavities of the parts are required to be subjected to sealing inspection in order to meet the working requirements of the parts, but due to the complex structure of the parts, a special inspection clamp is required to be used during the sealing inspection, and the sealing inspection requirements of the parts can be met.

In a conventional sealing test, a single cylindrical plug was used particularly for plugging a hole. The sealing scheme makes the clamping of an operator difficult, the assembly success rate is low, and the rework phenomenon often occurs. The processing quality of the parts is always low, the processing efficiency is always low, and the average single sealing inspection time is 12 hours. The current machining state of the parts always leads the machining technology of the parts to be in a lagging level, high-efficiency and high-precision machining cannot be realized in a true sense, and the parts are low in production efficiency, high in cost and poor in machining quality.

Disclosure of Invention

According to the invention, through the analysis of the structure of the complex-structure casing part, the structure of the sealing clamp of the part is skillfully improved, and the complex-structure casing part sealing clamp is provided, so that the clamp is more beneficial to the clamping of the part, a better sealing effect is realized, the sealing effect of the part is improved, and the processing efficiency is improved.

Analyzing the position of the complex-structure casing type part: first, the overall structure of the part is analyzed, and as shown in FIG. 1, the sealing area of the part has two large outlets, namely

And

and a plurality of radial through holes are distributed on the inner wall of the part. When the sealing inspection is carried out, a sealing clamp is required to be used

And

and sealing the radial hole of the inner molded surface to form a sealed cavity in the inner cavity of the part, and then performing sealing inspection on the part shell by using kerosene. The sealing jig must be constructed to effectively seal the above-mentioned position.

The technical scheme of the invention is as follows: a sealing clamp for a complex-structure casing part comprises a sealing clamp for the complex-structure casing part

The clamp comprises a clamp body for sealing and an adjustable plug for sealing a radial hole of a complicated-structure casing part.

The clamp body includes: the device comprises an upper gland 1, a lower gland 2, a baffle 3, a lower mandrel 4 and an upper mandrel 5; go up and be equipped with O type circle I6 and cooperate and have packing ring I7 sealing connection between gland 1 and the last dabber 5, it has handle 8 to go up the welding on gland 1, it will be through a plurality of hexagon head bolts I9 and cooperation packing ring II 10, O type circle II 11 to go up 1 edge circumference of gland

Sealing is carried out; the lower core shaft 4 is connected with the upper core shaft 5 in an inserting mode, the lower pressing cover 2 is fixedly connected with the lower core shaft 4 through the inner hexagonal socket head cap screw 12, and the flat gasket 13, the hexagon head bolt II 14 and the gasket III 15 are matched between the lower pressing cover 2 and the baffle plate 3 to enable the lower pressing cover 2 and the baffle plate 3 to be connected

Sealing is carried out; the upper gland 1 is provided with an air vent and is provided with an air vent plug 16 and a gasket IV 17, and the lower gland 2 and the baffle 3 are correspondingly provided with oil outlets and are provided with an oil outlet pipe 18 in a sealing way.

The adjustable plug comprises a movable pressing block 19, a plug 20, a cylindrical pin 21, a hexagon head bolt III 22 and an O-shaped ring III 23; the movable pressing block 19 is sleeved outside the upper end of the plug 20, the movable pressing block 19 and the plug 20 are positioned through a cylindrical pin 21, and an O-shaped ring III 23 is matched between the movable pressing block 19 and the plug 20 and is movably connected through a hexagon head bolt III 22.

The invention has the following beneficial effects:

by arranging the double-layer gland and the adjustable plug, the production efficiency is greatly improved, and the inspection quality is effectively ensured. The working strength of an operator is reduced, the quality and the processing efficiency of parts are improved, and the backward situation of the original processing mode is eliminated.

Drawings

FIG. 1 is a schematic view of a chamber requiring sealing in accordance with the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a perspective view of the present invention;

FIG. 4 is a state diagram of the present invention in use;

in the figure: 1. a gland is arranged; 2. a lower gland; 3. a baffle plate; 4. a lower mandrel; 5. an upper mandrel; 6. an O-shaped ring I; 7. a gasket I; 8. a handle; 9. a hexagon head bolt I; 10. a gasket II; 11. o-shaped ring II; 12. a socket head cap screw; 13. a flat washer; 14. a hexagon head bolt II; 15. a gasket III; 16. a gas vent plug; 17. a gasket IV; 18. an oil outlet pipe; 19. a movable pressing block; 20. a plug; 21. a cylindrical pin; 22. a hexagon head bolt III; 23. and an O-shaped ring III.

Detailed Description

The invention is described in detail below with reference to the figures and examples.

1-4, a sealing clamp for a complex-structure casing part comprises a sealing clamp for the complex-structure casing part

The anchor clamps body includes: the device comprises an upper gland 1, a lower gland 2, a baffle 3, a lower mandrel 4 and an upper mandrel 5; go up and be equipped with O type circle I6 and cooperate with packing ring I7 sealing connection between gland 1 and the last dabber 5, go up the welding of gland 1 and have handle 8, go up 1 edge circumference of gland through a plurality of hexagon head bolts I9 and cooperate packing ring II 10, O type circle II 11 will be with

Sealing is carried out; the lower mandrel 4 is inserted into the upper mandrel 5, the lower gland 2 is fixedly connected with the lower mandrel 4 through an inner hexagonal socket head cap screw 12, and a flat gasket 13, a hexagonal socket head cap screw II 14 and a gasket III 15 are matched between the lower gland 2 and the baffle 3 to ensure that the lower gland is connected with the baffle 3

The adjustable plug comprises a movable pressing block 19, a plug 20, a cylindrical pin 21, a hexagon head bolt III 22 and an O-shaped ring III 23; the movable pressing block 19 is sleeved outside the upper end of the plug 20, the movable pressing block 19 and the plug 20 are positioned through the cylindrical pin 21, and the O-shaped ring III 23 is matched between the movable pressing block 19 and the plug 20 and is movably connected through the hexagon head bolt III 22.

The specific operation method of the invention is as follows: the upper gland 1 is connected with

The holes are assembled together and

sealing, and pressing the cap 2 with

The holes are assembled together to

The hole is sealed. The upper pressing cover and the lower pressing cover are connected with the lower mandrel 4 through the upper mandrel 5, and the fixture body is fixed. And then the adjustable plug is connected with the radial hole of the part to seal the radial hole. Through the operation, the whole cavity of the part is sealed.

When the adjustable plug is used for sealing the radial hole, the hexagonal bolt III 22 is loosened during use, the adjustable plug is placed into the sealed hole under the condition that the O-shaped ring III 23 is not stressed, then the hexagonal bolt III 22 is screwed down, and the gap between the movable pressing block 19 and the plug 20 is reduced, so that the O-shaped ring III 23 is stressed to deform and expand, and the hole in the cavity of the part is sealed. The diameter of the adjustable plug can be reduced during assembly, after the adjustable plug is installed in the hole and reaches an ideal position, the diameter of the adjustable plug is increased by rotating the hexagon head bolt III 22 on the adjustable plug, and the hole is sealed by the O-shaped ring III 23 on the outer diameter of the adjustable plug.

The invention usesTwo large-scale glands are connected through the mandrel

And

the two sealing ports are sealed, and then the adjustable plugs are used for plugging the radial holes in the cavity, so that the cavity forms a sealing space. Because the aperture of the radial hole in the cavity has tolerance, the apertures among the parts are different, and the adjustable plug can realize the adjustable function, thereby not only facilitating the assembly of an operator, but also improving the sealing effect.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The sealing clamp for the parts with the complex structure, which is characterized by comprising a sealing clamp for the parts with the complex structure, such as the casings

2. The complex structural casing part sealing jig as set forth in claim 1, wherein said jig body comprises: the device comprises an upper gland (1), a lower gland (2), a baffle (3), a lower mandrel (4) and an upper mandrel (5); go up and be equipped with O type circle I (6) and cooperate between gland (1) and last dabber (5) and have packing ring I (7) sealing connection, it has handle (8) to go up the welding in gland (1), it will be through a plurality of hexagon head bolts I (9) and cooperation packing ring II (10), O type circle II (11) to go up gland (1) edge circumference

Sealing is carried out; the lower core shaft (4) is connected with the upper core shaft (5) in an inserting mode, the lower pressing cover (2) is fixedly connected with the lower core shaft (4) through an inner hexagonal socket head cap screw (12), and a flat gasket (13), a hexagonal head bolt II (14) and a gasket III (15) are matched between the lower pressing cover (2) and the baffle plate (3)

Sealing is carried out; the oil-gas-discharging-hole-type oil-gas separator is characterized in that an air discharging hole is formed in the upper gland (1), an air discharging hole plug (16) and a gasket IV (17) are installed on the upper gland, and oil outlet holes are correspondingly formed in the lower gland (2) and the baffle (3) and are provided with oil outlet pipes (18) in a sealing mode.

3. The sealing clamp for the complex-structure case type part as claimed in claim 1, wherein the adjustable plug comprises a movable pressing block (19), a plug (20), a cylindrical pin (21), a hexagon head bolt III (22) and an O-shaped ring III (23); the movable pressing block (19) is sleeved outside the upper end of the plug (20), the movable pressing block (19) and the plug (20) are positioned through a cylindrical pin (21), and an O-shaped ring III (23) is matched between the movable pressing block (19) and the plug (20) and is movably connected through a hexagonal head bolt III (22).