CN212779686U - Pipe fitting detection device - Google Patents
Pipe fitting detection device Download PDFInfo
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- CN212779686U CN212779686U CN202022170470.6U CN202022170470U CN212779686U CN 212779686 U CN212779686 U CN 212779686U CN 202022170470 U CN202022170470 U CN 202022170470U CN 212779686 U CN212779686 U CN 212779686U
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Abstract
The utility model provides a pipe fitting detection device, the purpose is solved the technical problem that current pipe fitting detection device detection efficiency is low. The adopted technical scheme is as follows: a pipe fitting detection device comprises a first chuck and a second chuck which are coaxial, and a lead screw for driving the first chuck and the second chuck to approach or depart from each other; the first chuck is a three-jaw chuck and is used for clamping or releasing the pipe fitting; a rotating piece is arranged on a second jaw of the second chuck; the outline of the rotating part is cylindrical or spherical, and the pipe fitting is limited; the rotating direction of the rotating piece is tangent to the relative moving direction of the pipe fitting and the second clamping jaw; the second chuck is coaxially and fixedly connected with a third chuck; the third chuck is the three-jaw chuck, the third test rack is installed to the third chuck of third chuck, the third test rack be equipped with the third arc clamp plate of pipe fitting periphery wall adaptation, the one side of third arc clamp plate towards the pipe fitting is equipped with the foil gage.
Description
Technical Field
The utility model relates to a pipe fitting check out test set technical field, concretely relates to pipe fitting detection device.
Background
The pipeline workpiece is a common structural member and has very wide application in the fields of petrochemical industry, aerospace, traffic tracks and the like. In order to ensure the performance of the pipe fittings and prevent the leakage of the pipeline and the occurrence of explosion accidents, the stress detection of the pipe fittings is needed after the pipe fittings are processed and produced.
The existing pipe fitting detection device generally fixes the strain gauge on the surface of the pipe fitting in a sticking mode, so that the stress detection of the pipe fitting is carried out, and the defects of complex operation, high labor intensity and low detection efficiency exist.
Disclosure of Invention
An object of the utility model is to provide a pipe fitting detection device, its easy operation can reduce measurement personnel's intensity of labour, improves the efficiency of carrying out stress detection to the pipe fitting.
In order to achieve the above object, the utility model adopts the following technical scheme:
a pipe detection apparatus comprising:
the first chuck is a three-jaw chuck and is used for clamping or releasing the pipe fitting;
a second chuck coaxial with the first chuck; a rotating piece is arranged on a second jaw of the second chuck; the outline of the rotating part is cylindrical or spherical, and the pipe fitting is limited; the rotating direction of the rotating piece is tangent to the relative moving direction of the pipe fitting and the second clamping jaw;
the lead screw is used for driving the first chuck and the second chuck to move close to or away from each other;
the third chuck is a three-jaw chuck and is coaxially and fixedly connected with the second chuck; the third detection frame is installed to the third chuck jaw of third chuck, the third detection frame be equipped with the third arc clamp plate of pipe fitting periphery wall adaptation, the one side of third arc clamp plate towards the pipe fitting is equipped with the foil gage.
Optionally, the second chuck, the lead screw and the third chuck are mounted on the same mounting base, and the first chuck is fixedly connected with a lead screw nut of the lead screw.
Optionally, the first chuck is an electric chuck or a pneumatic chuck, and the third chuck is an electric chuck or a pneumatic chuck.
Optionally, the chuck further comprises a fourth chuck, wherein the fourth chuck is a three-jaw chuck and is coaxially and fixedly connected with the second chuck; a fourth detection frame is arranged on a fourth jaw of the fourth chuck, a fourth arc-shaped pressing plate matched with the peripheral wall of the pipe fitting is arranged on the fourth detection frame, and a strain gauge is arranged on one surface, facing the pipe fitting, of the fourth arc-shaped pressing plate; the fourth clamping jaws and the third clamping jaws are distributed in a staggered mode, and the detection tracks corresponding to the third arc-shaped pressing plate and the fourth arc-shaped pressing plate are complementary.
Optionally, the fourth chuck is an electric chuck or a pneumatic chuck.
Optionally, the rotating part is a bearing, an inner hole of the bearing is fixedly connected with the second clamping jaw, and the periphery of the bearing limits the pipe fitting.
Optionally, the second jaw is provided with mounting blocks on two side surfaces of the bearing respectively, each mounting block is provided with a pin hole and is adapted to the corresponding pin, and an inner ring of the bearing is connected with the corresponding pin; and the two ends of the bolt are respectively provided with external threads and are matched with nuts.
The utility model discloses a theory of operation does: and enabling the pipe fitting to penetrate through the shaft holes of the first chuck, the second chuck and the third chuck. And adjusting the position of the second clamping jaw to enable the outline of the rotating piece to abut against the peripheral wall of the pipe fitting, so that the pipe fitting is coaxial with the second clamping chuck. Drive third arc clamp plate through the third jack catch and support the periphery wall at the pipe fitting, can carry out stress detection to the pipe fitting through the foil gage. Loosening the third jaw, enabling the first jaw of the first chuck to clamp the pipe fitting, and driving the first chuck and the second chuck to be close to each other through the lead screw, so that the pipe fitting can move relative to the second chuck and the third chuck; and then loosening the first clamping jaw of the first clamping chuck, driving the first clamping chuck and the second clamping chuck to be away from each other through the screw rod, and driving the third arc-shaped pressing plate to abut against the peripheral wall of the pipe fitting through the third clamping jaw, so that the next position of the pipe fitting can be subjected to stress detection. The stress detection of the pipe fittings at all positions can be realized by repeating the steps.
Therefore, the utility model has the advantages that: the third arc-shaped pressing plate and the strain gauge are driven by the third clamping jaw to move towards the shaft hole of the third chuck, so that the strain gauge can be tightly abutted against the surface of the pipe joint, and the stress detection of the pipe fitting is realized; the operation is simple, the labor intensity of detection personnel is reduced, and the detection efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a second chuck;
FIG. 3 is a schematic structural view of a third chuck;
FIG. 4 is a schematic structural view of a second jaw;
FIG. 5 is a schematic structural view of the latch;
reference numerals: 1. a first chuck; 2. a second chuck; 3. a second jaw; 4. a rotating member; 5. a lead screw; 6. a third chuck; 7. a third jaw; 8. a third detection frame; 9. a third arc-shaped pressing plate; 10. a strain gauge; 11. a mounting seat; 12. a fourth chuck; 13. a fourth jaw; 14. a fourth detection frame; 15. a fourth arc-shaped pressing plate; 16. mounting blocks; 17. a bolt; 18. a pin hole.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Embodiments of the present invention will be described in detail below with reference to fig. 1 to 5.
The embodiment of the utility model provides a pipe fitting detection device, this pipe fitting detection device includes:
the first chuck 1 is a three-jaw chuck and is used for clamping or releasing the pipe fitting;
a second chuck 2 coaxial with the first chuck 1; the second jaws 3 of the second chuck 2 are provided with rotating pieces 4; the outline of the rotating part 4 is cylindrical or spherical, and the pipe fitting is limited; the rotating direction of the rotating piece 4 is tangent to the relative moving direction of the pipe fitting and the second clamping jaw 3;
a screw 5 for driving the first chuck 1 and the second chuck 2 to approach or separate from each other;
a third chuck 6 which is a three-jaw chuck and is coaxially and fixedly connected with the second chuck 2; third test rack 8 is installed to the third gripper 7 of third chuck 6, third test rack 8 is equipped with the third arc clamp plate 9 with pipe fitting periphery wall adaptation, third arc clamp plate 9 is equipped with foil gage 10 towards the one side of pipe fitting. It should be understood that for a light-weight pipe with a small pipe diameter, the pipe can be moved along the axial direction of the second chuck 2, so that stress detection can be performed on all parts of the pipe; to the big heavy pipe fitting of pipe diameter, establish first chuck 1, second chuck 2 and third chuck 6 cover behind the pipe fitting periphery, can fix the pipe fitting and place, make first chuck 1, second chuck 2 and third chuck 6 remove along pipe fitting length direction to carry out stress detection everywhere to the pipe fitting. If the third chuck 6 is a manual chuck, when stress detection is performed on all parts of the pipe fitting, the chuck wrench needs to be screwed to the same position every time the stress detection is performed, so that the third jaw 7 is located at the same position every time the stress detection is performed, the abutting degree of the third arc-shaped pressing plate 9 is the same every time the stress detection is performed, and the detection conditions are kept consistent when the stress detection is performed on all parts of the pipe fitting.
The embodiments of the present invention are explained below, and the pipe is passed through the shaft holes of the first chuck 1, the second chuck 2, and the third chuck 6. The second jaws 3 are positioned so that the profile of the rotary member 4 abuts the outer peripheral wall of the pipe member so that the pipe member is coaxial with the second chuck 2. Drive third arc clamp plate 9 through third jack catch 7 and support the periphery wall at the pipe fitting, can carry out stress detection to the pipe fitting through foil gage 10. Loosening the third jaw 7, enabling the first jaw of the first chuck 1 to clamp the pipe fitting, and then driving the first chuck 1 and the second chuck 2 to approach each other through the screw 5, so that the pipe fitting can move relative to the second chuck 2 and the third chuck 6; loosen first jack catch of first chuck 1 next, keep away from each other through lead screw 5 drive first chuck 1 and second chuck 2 to drive third arc clamp plate 9 through third jack catch 7 and support the periphery wall at the pipe fitting, can carry out stress detection to the next position of pipe fitting. The stress detection of the pipe fittings at all positions can be realized by repeating the steps. The utility model drives the third arc-shaped pressing plate 9 and the strain gauge 10 to move towards the shaft hole of the third chuck 6 through the third clamping jaw 7, so that the strain gauge 10 can be tightly propped against the surface of the pipe joint, thereby realizing the stress detection of the pipe fitting; the operation is simple, the labor intensity of detection personnel is reduced, and the detection efficiency is improved.
In one embodiment provided by the application, the second chuck 2, the lead screw 5 and the third chuck 6 are mounted on the same mounting seat 11, and the first chuck 1 is fixedly connected with the lead screw 5 of the lead screw 5 through a nut.
In one embodiment presented herein, the first chuck 1 is a power chuck or a pneumatic chuck and the third chuck 6 is a power chuck or a pneumatic chuck. It should be understood that, by setting the first chuck 1 and the third chuck 6 as an electric chuck or a pneumatic chuck, automatic control can be achieved, and particularly, the third chuck 6 can make the third jaw 7 precisely keep the same position in each detection, so that the abutting degrees of the third arc-shaped pressing plates 9 are the same, and the consistency of detection conditions in all detection of the pipe fitting can be ensured.
In one embodiment, the present application further comprises a fourth chuck 12, wherein the fourth chuck 12 is a three-jaw chuck and is coaxially and fixedly connected with the second chuck 2; a fourth detection frame 14 is mounted on a fourth jaw 13 of the fourth chuck 12, the fourth detection frame 14 is provided with a fourth arc-shaped pressing plate 15 matched with the peripheral wall of the pipe fitting, and one surface, facing the pipe fitting, of the fourth arc-shaped pressing plate 15 is provided with a strain gauge 10; the fourth clamping jaws 13 and the third clamping jaws 7 are distributed in a staggered mode, and the detection tracks corresponding to the third arc-shaped pressing plates 9 and the fourth arc-shaped pressing plates 15 are complementary. It will be appreciated that when only the weld of the pipe is to be stress tested, it is generally only necessary to provide the third chuck 6. When the stress detection is required to be carried out on the whole peripheral wall of the pipe fitting, the whole circumferential direction of the pipe fitting is difficult to cover due to the inevitable gaps among the three third arc-shaped pressing plates 9; at this moment, through setting up fourth chuck 12, make and install strain gage 10 at fourth arc clamp plate 15 and carry out stress detection to the clearance department of third arc clamp plate 9, can accomplish the stress detection to whole pipe fitting periphery wall in one-way stroke to improve detection efficiency.
In one embodiment presented herein, the fourth chuck 12 is a power chuck or a pneumatic chuck. It should be understood that, by setting the fourth chuck 12 as an electric chuck or a pneumatic chuck, it is possible to realize automatic control, so that the third jaw 7 is precisely maintained at the same position during each detection, and the tightening degree of the third arc-shaped pressing plate 9 is the same, thereby ensuring that the detection conditions are consistent when the detection is performed everywhere on the pipe.
In one embodiment given in this application, the rotating member 4 is a bearing, an inner hole of the bearing is fixedly connected with the second jaw 3, and the periphery of the bearing is limited to the pipe fitting. It should be understood that the use of bearings as the rotating member 4 can greatly reduce the friction force applied to the rotating member 4 during rotation and improve the stability of the rotating member 4, so that the pipe member and the first chuck 1 can move relatively in the axial direction more smoothly.
In one embodiment provided by the application, the second jaw 3 is respectively provided with mounting blocks 16 on two side surfaces of a bearing, the mounting blocks 16 are provided with pin holes 18 and are matched with bolts 17, and an inner ring of the bearing is connected with the bolts 17; and the two ends of the bolt 17 are respectively provided with external threads and are matched with nuts. It will be appreciated that the bearing is assembled with the second jaw 3 by means of the spigot 17, which facilitates disassembly, maintenance or replacement. In addition, the pin hole 18 and the inner hole of the bearing can be set to be square, and the part of the bolt 17 corresponding to the pin hole 18 and the inner hole of the bearing is set to be in a matched prism structure, so that the bolt 17 is prevented from rotating along with the rotation of the inner ring of the bearing, the bolt 17 and the nut are prevented from loosening, and the stability of the bearing is improved.
Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that changes and modifications may be made to these embodiments without departing from the principles and spirit of the invention, and these changes and modifications are intended to fall within the scope of the invention.
Claims (7)
1. A pipe fitting detection device which characterized in that: the method comprises the following steps:
the first chuck (1) is a three-jaw chuck and is used for clamping or releasing the pipe fitting;
a second chuck (2) coaxial with the first chuck (1); a rotating piece (4) is arranged on a second clamping jaw (3) of the second chuck (2); the outline of the rotating part (4) is cylindrical or spherical and limits the pipe fitting; the rotating direction of the rotating piece (4) is tangent to the relative moving direction of the pipe fitting and the second clamping jaw (3);
a screw (5) for driving the first chuck (1) and the second chuck (2) to approach or separate from each other;
the third chuck (6) is a three-jaw chuck and is coaxially and fixedly connected with the second chuck (2); third test jig (8) are installed in third jack catch (7) of third chuck (6), third test jig (8) are equipped with third arc clamp plate (9) with pipe fitting periphery wall adaptation, third arc clamp plate (9) are equipped with foil gage (10) towards the one side of pipe fitting.
2. The tubular inspection device of claim 1, wherein: the second chuck (2), the lead screw (5) and the third chuck (6) are installed on the same installation seat (11), and the first chuck (1) is fixedly connected with the lead screw (5) and a nut of the lead screw (5).
3. The tubular inspection device of claim 1, wherein: the first chuck (1) is an electric chuck or a pneumatic chuck, and the third chuck (6) is an electric chuck or a pneumatic chuck.
4. The tubular inspection device of claim 1, wherein: the clamping device also comprises a fourth chuck (12), wherein the fourth chuck (12) is a three-jaw chuck and is coaxially and fixedly connected with the second chuck (2); a fourth detection frame (14) is mounted on a fourth jaw (13) of the fourth chuck (12), a fourth arc-shaped pressing plate (15) matched with the peripheral wall of the pipe fitting is arranged on the fourth detection frame (14), and a strain gauge (10) is arranged on one surface, facing the pipe fitting, of the fourth arc-shaped pressing plate (15); the fourth clamping jaws (13) and the third clamping jaws (7) are distributed in a staggered mode, and the detection tracks corresponding to the third arc-shaped pressing plates (9) and the fourth arc-shaped pressing plates (15) are complementary.
5. The tubular inspection device of claim 4, wherein: the fourth chuck (12) is an electric chuck or a pneumatic chuck.
6. The tubular inspection device of claim 1, wherein: the rotating piece (4) is a bearing, an inner hole of the bearing is fixedly connected with the second clamping jaw (3), and the periphery of the bearing is limited to the pipe fitting.
7. The tubular inspection device of claim 6, wherein: the two side faces of the bearing of the second clamping jaw (3) are respectively provided with an installation block (16), the installation block (16) is provided with a pin hole (18) and is matched with a bolt (17), and the inner ring of the bearing is connected with the bolt (17); and two ends of the bolt (17) are respectively provided with external threads and are matched with nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022170470.6U CN212779686U (en) | 2020-09-28 | 2020-09-28 | Pipe fitting detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022170470.6U CN212779686U (en) | 2020-09-28 | 2020-09-28 | Pipe fitting detection device |
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| Publication Number | Publication Date |
|---|---|
| CN212779686U true CN212779686U (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022170470.6U Active CN212779686U (en) | 2020-09-28 | 2020-09-28 | Pipe fitting detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116223611A (en) * | 2023-05-11 | 2023-06-06 | 四川经准特种设备检验有限公司 | Auxiliary system for pressure pipeline detection and detection method |
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2020
- 2020-09-28 CN CN202022170470.6U patent/CN212779686U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116223611A (en) * | 2023-05-11 | 2023-06-06 | 四川经准特种设备检验有限公司 | Auxiliary system for pressure pipeline detection and detection method |
| CN116223611B (en) * | 2023-05-11 | 2023-07-07 | 四川经准特种设备检验有限公司 | Auxiliary system for pressure pipeline detection and detection method |
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