CN217343567U

CN217343567U - Local infiltration device of aluminum alloy closing member

Info

Publication number: CN217343567U
Application number: CN202221337588.6U
Authority: CN
Inventors: 葛汉武
Original assignee: Xinxing Heavy Industry Hubei 3611 Mechanical Co Ltd
Current assignee: Xinxing Heavy Industry Hubei 3611 Mechanical Co Ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-09-02
Anticipated expiration: 2032-05-31

Abstract

A local infiltration device for an aluminum alloy closed part comprises a plug, a gas pipe joint, a sealing ring and a gas supply device; the outer end part of the plug is step-shaped, and the plug comprises a small step part positioned at the lower end and a large step part positioned at the upper end; the small step part is of a screw rod structure in threaded fit with the threaded mounting hole to be subjected to infiltration repair of the aluminum alloy casting; the middle part of the plug is provided with an axially extending step through hole, and the step through hole comprises a large step hole positioned at the upper end and a small step hole connected to the lower end of the large step hole; the air pipe connector is arranged in the large step hole at the upper end of the plug and is communicated with the air supply device through an air pipe; and after the sealing ring is sleeved outside the small step part of the plug, the upper end surface of the sealing ring abuts against the lower end surface of the large step part of the plug, and the lower end surface of the sealing ring abuts against the upper end surface of the aluminum alloy casting. Simple manufacture, convenient operation, low cost and high infiltration efficiency.

Description

Local infiltration device of aluminum alloy closing member

Technical Field

The utility model is used for the defect repair technical field of aluminum alloy closing member part, concretely relates to local infiltration repair device of aluminum alloy closing member.

Background

Some aluminum alloy castings are often made with internal cavities that are filled with gas or liquid and therefore must not leak. However, as the casting of the aluminum alloy casting inevitably has some local leakage phenomena, and the casting inevitably needs to be provided with a threaded mounting hole for matching with other components, in order to ensure the depth of the threaded mounting hole, a boss is generally required to be cast in the casting inner cavity at the threaded mounting hole, local casting shrinkage is easily generated at the joint between the boss and the casting cavity wall due to overlarge thermal node, so that the leakage phenomenon is easily generated at the joint part, and if the leakage is not compensated, the casting is discarded due to the leakage.

However, the current method for repairing leakage commonly used in industry is to integrally place the casting in the infiltration equipment for integral infiltration, in order to meet the infiltration of the castings with different sizes, the cavity design of the common infiltration equipment is large, if the part only has 1-2 small leakage points to be subjected to infiltration, the equipment is wasted; simultaneously if the foundry goods is great, a die cavity for the infiltration repair equipment can only be put into 1 product even once and carry out the infiltration repair work, and this mode needs operating personnel to make a round trip to carry the product, and the operation is hard, and if 1 only can the infiltration repair 1 product 1 time, can't satisfy current production demand, seriously influences the production progress.

Disclosure of Invention

An object of the utility model is to solve above-mentioned prior art not enough to the local infiltration of aluminum alloy closing member device that provides, simple manufacture, convenient operation, low cost, the infiltration is efficient.

The technical scheme of the utility model lies in: a local infiltration device for an aluminum alloy closed part comprises a plug, a gas pipe joint, a sealing ring and a gas supply device;

the outer end part of the plug is step-shaped, and the plug comprises a small step part positioned at the lower end and a large step part positioned at the upper end;

the small step part is of a screw rod structure in threaded fit with the threaded mounting hole to be subjected to infiltration repair of the aluminum alloy casting;

the middle part of the plug is provided with an axially extending step through hole, and the step through hole comprises a large step hole positioned at the upper end and a small step hole connected to the lower end of the large step hole;

the air pipe connector is arranged in the large step hole at the upper end of the plug, and is communicated with the air supply device through an air pipe;

and after the sealing ring is sleeved outside the small step part of the plug, the upper end surface of the sealing ring abuts against the lower end surface of the large step part of the plug, and the lower end surface of the sealing ring abuts against the upper end surface of the aluminum alloy casting.

The length H of the small step part of the plug is smaller than the depth H of the threaded mounting hole to be subjected to the infiltration repair of the aluminum alloy casting.

The cross section size of the large step part at the upper end of the plug is larger than that of the threaded mounting hole to be subjected to the infiltration.

And an internal thread matched with the air pipe connector is processed on the inner wall of the large step hole at the upper end of the plug.

The gas supply device comprises a gas supply pipeline, the input end of the gas supply pipeline is connected to a compressed gas source, and the output end of the gas supply pipeline is communicated with a gas pipe through a quick connector.

And the gas supply pipeline is also sequentially provided with a stop valve and a pressure reducing valve.

Compared with the prior art, the utility model has simple structure and low cost;

the utility model is simple in operation, the transport foundry goods that makes a round trip without the operator, labour saving and time saving can be fast effectual carries out the infiltration repair work to the leak source.

The utility model discloses better solution single aluminum alloy foundry goods need not the method that large-scale infiltration equipment infiltration mending just can go on, have extensive use value.

Drawings

Fig. 1 is a schematic structural view of the plug of the present invention;

fig. 2 is a schematic structural diagram of the present invention;

in the figure, 1, a compressed air source, 2, a stop valve, 3, a plug, 4, an air pipe connector, 5, an air pipe, 6, a sealing ring, 7, a seepage and compensation liquid, 8, an aluminum alloy casting, 9, a pressure reducing valve, 10 and a quick connector are shown.

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.

In fig. 1, a stepped through hole is formed in the middle of a plug 3, the stepped through hole extends axially, a large hole in the upper end of the stepped through hole is used for accommodating a gas pipe connector 4, an internal thread matched with the gas pipe connector 4 is formed in the inner wall of the stepped through hole, and a small hole in the lower end of the stepped through hole is used for allowing high-pressure gas to pass through; the outer part of the plug 3 is also in a step shape with a large upper part and a small lower part, the small step part at the lower end of the plug 3 is of a screw rod structure which can be matched with the threaded mounting hole to be subjected to the leakage compensation in a threaded mounting mode, and the cross section of the large step part at the upper end of the plug 3 is larger than that of the threaded mounting hole to be subjected to the leakage compensation. The large step part at the upper end of the plug 3 can be in a round table shape.

In fig. 2, the small step portion at the lower end of the plug 3 is installed in the to-be-infiltrated threaded installation hole of the aluminum alloy casting 8, in order to reserve the space position for placing the infiltrated liquid 7, the length H of the small step portion is set to be smaller than the depth H of the to-be-infiltrated threaded installation hole of the aluminum alloy casting 8, the small step portion at the lower end of the plug 3 is further sleeved with a sealing ring 6 for preventing the infiltrated liquid 7 from leaking, the upper end surface of the sealing ring 6 abuts against the lower end surface of the large step portion at the upper end of the plug 3, and the lower end surface of the sealing ring 6 abuts against the upper end surface of the aluminum alloy casting 8. The internal thread of the large step hole on the plug 3 is connected with the external thread of the air pipe joint 4, one end of the air pipe 5 is inserted into the air pipe joint 4, and the other end of the air pipe 5 is quickly connected with the air supply device through the quick-connection plug 10. The air feeder includes

compressed air source

1, and 1 output of compressed air source communicates through the gas supply line with quick connector 10 one end, and gas supply line is last to be close to 1 one of compressed air source and to be served and install stop valve 2, and gas supply line is close to quick connector 10 and serves and install relief pressure valve 9. The compressed gas source 1 is a compressor that can provide high pressure gas.

When in use, firstly, the mounting hole of the aluminum alloy casting 8 to be compensated thread is filled with the compensation liquid 7, then the air pipe 5 is pulled out from the quick-connection plug 10, the small step part at the lower end of the plug 3 is sleeved with the sealing ring 6 and then is mounted in the mounting hole of the aluminum alloy casting 8 to be compensated thread, the sealing ring 6 is pressed between the lower end surface of the large step part of the plug 3 and the upper end surface of the aluminum alloy casting 8 after mounting, then the air pipe 5 is inserted into the quick-connection plug 10, the plug 3 and a compressed air source are communicated, the pressure of the pressure reducing valve 9 is set, then the stop valve 2 is opened, the mounting hole of the aluminum alloy casting 8 to be compensated thread is filled with high-pressure gas, after one end of pressure maintaining, the stop valve 2 is closed, the air pipe 5 is pulled out from the quick-connection plug 10, the plug 3 is taken out from the mounting hole of the aluminum alloy casting 8 to be compensated thread, the redundant compensation liquid 7 is recovered by an injector, and then the aluminum alloy casting 8 is immersed in hot water and solidified for a certain time, the whole infiltration repairing work is completed.

Claims

1. The utility model provides a local infiltration repair device of aluminum alloy closing member which characterized in that: comprises a plug (3), a gas pipe joint (4), a sealing ring (6) and a gas supply device;

the outer end part of the plug (3) is step-shaped, and the plug (3) comprises a small step part positioned at the lower end and a large step part positioned at the upper end;

the small step part is of a screw rod structure in threaded fit with a threaded mounting hole to be subjected to infiltration of the aluminum alloy casting (8);

an axially extending step through hole is formed in the middle of the plug (3), and the step through hole comprises a large step hole located at the upper end and a small step hole connected to the lower end of the large step hole;

the air pipe connector (4) is arranged in a large step hole at the upper end of the plug (3), and the air pipe connector (4) is communicated with an air supply device through an air pipe (5);

the sealing ring (6) is sleeved outside the small step part of the plug (3), the upper end face of the sealing ring (6) is abutted against the lower end face of the large step part of the plug (3), and the lower end face of the sealing ring (6) is abutted against the upper end face of the aluminum alloy casting (8).

2. The aluminum alloy closure localized infiltration apparatus of claim 1, wherein: the length H of the small step part of the plug (3) is smaller than the depth H of the threaded mounting hole to be subjected to the infiltration repair of the aluminum alloy casting (8).

3. The aluminum alloy closure localized infiltration apparatus of claim 1 or 2, wherein: the cross section of the large step part at the upper end of the plug (3) is larger than that of the threaded mounting hole to be subjected to leakage repair.

4. The aluminum alloy closure localized infiltration apparatus of claim 3, wherein: and an internal thread matched with the air pipe connector (4) is processed on the inner wall of the large step hole at the upper end of the plug (3).

5. The aluminum alloy closure localized infiltration apparatus of claim 1, wherein: the gas supply device comprises a gas supply pipeline, the input end of the gas supply pipeline is connected to the compressed gas source (1), and the output end of the gas supply pipeline is communicated with the gas pipe (5) through the quick-connection plug (10).

6. The aluminum alloy closure localized infiltration apparatus of claim 5, wherein: and the gas supply pipeline is also sequentially provided with a stop valve (2) and a pressure reducing valve (9).