CN210322184U - Clamp for capillary high-pressure test - Google Patents
Clamp for capillary high-pressure test Download PDFInfo
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- CN210322184U CN210322184U CN201921446090.1U CN201921446090U CN210322184U CN 210322184 U CN210322184 U CN 210322184U CN 201921446090 U CN201921446090 U CN 201921446090U CN 210322184 U CN210322184 U CN 210322184U
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- capillary
- end plate
- anchor clamps
- pressure test
- joint
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Abstract
The utility model relates to an aeronautical equipment technical field especially relates to anchor clamps for capillary high-pressure test, and current cooling tube airtight test anchor clamps can not satisfy 20 MPa's high-pressure test, anchor clamps for capillary high-pressure test, including anchor clamps body and capillary, the anchor clamps body comprises two chucks, each the chuck is located the capillary both ends, forms the anchor clamps structure of pressing from both sides the capillary in the centre, each the chuck includes end plate and joint, connect and end plate fixed weld, be provided with the slotted hole that supplies the capillary assembly on the end plate, each the capillary adopts the welded mode to be connected with the end plate, satisfies to inspect the gas tightness of capillary under the high-pressure prerequisite, has fine development prospect in anchor clamps technical field for capillary high-pressure test.
Description
Technical Field
The utility model relates to an aeronautical equipment technical field especially relates to anchor clamps for capillary high-pressure test.
Background
In the production of shell and tube radiator, need to carry out the acceptance test to the cooling tube, one in the experiment is that a plurality of quantity cooling tubes of extraction carry out high pressure resistance test, under the prerequisite of high pressure 20MPa, the pressurize 10min is not allowed to leak promptly.
The majority of radiating tubes of the radiator for aviation and aerospace are capillary tubes with the outer diameter smaller than 4mm and the wall thickness smaller than 1mm, and a common radiating tube air tightness test clamp can only maintain pressure (1-1.5) MPa and can not meet the high-pressure test of 20MPa far away.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned condition, for overcoming prior art's defect, the utility model provides a capillary is anchor clamps for high-pressure test solves the airtight test anchor clamps of current cooling tube and can not satisfy 20 MPa's high-pressure test's problem.
The technical scheme includes that the clamp for the capillary high-pressure test comprises a capillary to be tested for air tightness and a clamp body used for sealing the capillary to be tested, the clamp body is composed of two chucks, the chucks are located at two ends of the capillary to form a clamp structure for clamping the capillary in the middle, each chuck comprises an end plate and a joint, the joints are fixedly welded with the end plates, slotted holes for assembling the capillary are formed in the end plates, and the capillary is fixedly connected with the end plates.
Furthermore, a through groove for high-pressure air or oil to pass through is arranged on the joint.
Furthermore, each end plate is a hollow uncovered cylinder with a cavity inside, the cavity in each end plate is used for connecting a joint matched with the cavity, and each joint and the end plate are fixed in a threaded connection and argon arc welding mode.
Furthermore, each capillary tube is fixedly connected with the end plate in a vacuum brazing mode.
After welding is finished, air with the pressure of 5MPa is filled into the inner cavity through the through grooves on the two joints, whether the welding seams at the joints and the end plates are leaked is verified, and whether the welding seams of argon arc welding are leaked is checked; after the welding seam is verified to be qualified, air or oil with the pressure of 20MPa is filled into the inner cavity through the two joints to carry out a capillary high-pressure test, and whether the capillary 5 leaks or not is checked; after the test is finished, the argon arc welding seam turning of the joint and the end plate can be removed, the joint is unscrewed, and then the two ends of the capillary radiating pipe are drilled from the end plate, so that the end plate and the joint can be reused.
Furthermore, the number of the slotted holes for assembling the capillary tubes on the end plate is between 4 and 10, and each set of fixture tests do not exceed 10 radiating pipes.
Furthermore, the number of the slotted holes is between 6 and 8, and the number of the slotted holes for assembling the capillary tubes on the end plate is determined according to the number of the drawing radiating pipes, and the number of the slotted holes is kept consistent.
Furthermore, the capillary tube can be a capillary radiating tube made of materials such as aluminum alloy, copper alloy, stainless steel, titanium alloy, high-temperature alloy and the like.
The technical effect of the utility model is that, anchor clamps satisfy and carry out the gas tightness inspection to the capillary under 20 MPa's high pressure prerequisite, and anchor clamps can once only be examined a plurality of capillary's gas tightness, and end plate and joint repeatedly usable save the cost, are applicable to the high-pressure test of material capillary cooling tubes such as aluminum alloy, copper alloy, stainless steel, titanium alloy, superalloy.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is the schematic diagram of the structure of the end plate surface of the present invention.
1. The device comprises a chuck, 2 end plates, 3 joints, 4 slotted holes, 5 capillaries and 6 through grooves.
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.
It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The first embodiment is as follows: the fixture for the capillary high-pressure test comprises a capillary 5 to be tested for air tightness and a fixture body used for sealing the capillary to be tested, wherein the fixture body consists of two chucks 1, each chuck 1 is positioned at two ends of the capillary 5 to form a fixture structure for clamping the capillary 5 in the middle, each chuck 1 comprises an end plate 2 and a joint 3, the joint 3 is fixedly welded with the end plate 2, a slotted hole 4 for assembling the capillary is formed in the end plate 2, and each capillary 5 is connected with the end plate 2 in a vacuum brazing mode.
In an embodiment, the capillary tube to be tested for air tightness may be a capillary heat dissipation tube made of aluminum alloy, copper alloy, stainless steel, titanium alloy, high temperature alloy, or the like.
In one embodiment, a through groove 6 for passing high-pressure air or oil is formed in each joint 2, each end plate 2 is a hollow uncovered cylinder with a cavity inside, the cavity in each end plate 2 is used for connecting a joint 3 matched with the end plate 2, and each joint 3 and the end plates 2 are fixed in a threaded connection and argon arc welding mode.
After welding is finished, air with the pressure of 5MPa is filled into the inner cavity through the through grooves 6 on the two joints, whether the welding seam at the joint 3 and the end plate 2 leaks or not is verified, and whether the argon arc welding seam leaks or not is checked; after the welding seam is verified to be qualified, air or oil with the pressure of 20MPa is filled into the inner cavity through the two joints to carry out a capillary high-pressure test, and whether the capillary 5 leaks or not is checked; after the test is finished, the argon arc welding seam turning of the joint and the end plate can be removed, the joint is unscrewed, and then the two ends of the capillary radiating pipe are drilled from the end plate, so that the end plate and the joint can be reused.
In the above embodiment, the number of the slots 4 for assembling the capillary tubes 5 on the end plate 2 is between 4 and 10, each set of jig tests does not exceed 10 radiating pipes, the number of the slots is increased, and the corresponding area of the end plate 2 is increased.
In the above embodiment, the number of the slots 4 for assembling the capillary tubes 5 on the end plate 2 is between 6 and 8, and the number of the slots for assembling the capillary tubes on the end plate is determined according to the number of the drawing radiating pipes, and the number of the slots is kept consistent.
The technical effect of the utility model is that, anchor clamps satisfy and carry out the gas tightness inspection to the capillary under 20 MPa's high pressure prerequisite, and anchor clamps can once only be examined a plurality of capillary's gas tightness, and end plate and joint repeatedly usable save the cost, are applicable to the high-pressure test of material capillary cooling tubes such as aluminum alloy, copper alloy, stainless steel, titanium alloy, superalloy.
The present invention has been described in detail with reference to the specific embodiments and examples, but these should not be construed as limitations of the present invention. Numerous variations and modifications can be made by those skilled in the art without departing from the principles of the invention, which should also be considered as within the scope of the invention.
Claims (6)
1. Capillary is anchor clamps for high-pressure test, including anchor clamps body and capillary (5), its characterized in that, the anchor clamps body comprises two chuck (1), each chuck (1) is located capillary (5) both ends, forms the anchor clamps structure of pressing from both sides capillary (5) in the centre, each chuck (1) is including end plate (2) and joint (3), joint (3) and end plate (2) fixed weld, be provided with slotted hole (4) that supply the capillary assembly on end plate (2), each capillary (5) and end plate fixed connection.
2. The capillary high-pressure test fixture according to claim 1, characterized in that a through groove (6) for passing high-pressure air or oil is arranged on the joint (3).
3. The capillary high-pressure test fixture according to claim 1, wherein each end plate (2) is a hollow uncovered cylinder with a cavity inside, the cavity inside each end plate (2) is used for connecting a joint (3) matched with the cavity, and each joint (3) and the end plates (2) are fixed in a threaded connection and argon arc welding mode.
4. The capillary high-pressure test fixture as claimed in claim 1, wherein each capillary (5) is fixedly connected with an end plate by means of vacuum brazing.
5. Capillary high-pressure test fixture according to claim 1, characterized in that the number of slotted holes (4) in the end plate (2) for fitting the capillaries (5) is between 4 and 10.
6. Capillary high-pressure test fixture according to claim 5, characterized in that the number of slots (4) is between 6 and 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921446090.1U CN210322184U (en) | 2019-09-02 | 2019-09-02 | Clamp for capillary high-pressure test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921446090.1U CN210322184U (en) | 2019-09-02 | 2019-09-02 | Clamp for capillary high-pressure test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210322184U true CN210322184U (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921446090.1U Active CN210322184U (en) | 2019-09-02 | 2019-09-02 | Clamp for capillary high-pressure test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532746A (en) * | 2021-07-09 | 2021-10-22 | 湖北三江航天红林探控有限公司 | Injector capillary liquid flow and air tightness testing device |
-
2019
- 2019-09-02 CN CN201921446090.1U patent/CN210322184U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532746A (en) * | 2021-07-09 | 2021-10-22 | 湖北三江航天红林探控有限公司 | Injector capillary liquid flow and air tightness testing device |
| CN113532746B (en) * | 2021-07-09 | 2022-10-11 | 湖北三江航天红林探控有限公司 | Injector capillary liquid flow and air tightness testing device |
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