CN109047379B - Quick detection mechanism for ovality of cross section of space bent pipe - Google Patents
Quick detection mechanism for ovality of cross section of space bent pipe Download PDFInfo
- Publication number
- CN109047379B CN109047379B CN201811184205.4A CN201811184205A CN109047379B CN 109047379 B CN109047379 B CN 109047379B CN 201811184205 A CN201811184205 A CN 201811184205A CN 109047379 B CN109047379 B CN 109047379B
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- measurer
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- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 238000009434 installation Methods 0.000 claims abstract description 72
- 230000005540 biological transmission Effects 0.000 claims description 12
- 230000006698 induction Effects 0.000 claims description 11
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000005452 bending Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 210000000162 simple eye Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
- G01B5/201—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures for measuring roundness
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a rapid detection mechanism for the ovality of a cross section of a space bent pipe, which comprises a bottom plate, wherein a vertical installation rod is arranged on the bottom plate, an installation and adjustment platform is arranged on the vertical installation rod, and an ovality measurer is arranged on the installation and adjustment platform; the installation adjustment platform comprises an installation plane for installing an ellipticity measurer and 2 semicircular installation frames positioned at the bottom of the installation plane and used for adjusting angles, and the semicircular installation frames are provided with circular arc-shaped sliding grooves and first installation through holes. The invention has the advantages of easy adjustment of the measurement angle, universality, simple operation, low cost and high efficiency.
Description
Technical Field
The invention relates to a rapid detection mechanism for the ovality of a cross section of a space bent pipe.
Background
The metal pipe fitting is bent and formed by determining reasonable supporting points and stress points and applying certain bending moment or bending force. In the bending forming process of the pipe fitting, the outer side of the bending deformation area is subjected to tangential tensile stress, and the pipe wall is thinned and even cracked; the inner side is subjected to tangential compressive stress, the pipe wall is thickened, and even the pipe wall is unstably wrinkled; the resultant force of the two produces compressive stress inwards in radial direction, so that the cross section is flattened and distorted, and even collapses. After unloading, the rebound phenomenon is generated due to residual stress in the bent pipe and elastic deformation recovery. Therefore, the problems of stretch cracking, wrinkling, section distortion, rebound and the like easily occur in the pipe bending and forming process, and the pipe bending and forming process is a complex forming process with multiple forming defects.
When the metal bent pipe is applied to different fields, the forming performance indexes such as wall thickness reduction rate, wall thickness thickening rate, fold degree, ellipticity, rebound accuracy and the like of the metal bent pipe have corresponding standards or requirements. After each metal pipe is bent and formed, the related forming performance index is measured. The appearance forming performance indexes such as the folding degree, the ovality, the rebound accuracy and the like can be measured by means of special equipment such as a 3D global coordinate measuring instrument, but the cost is high, and a special clamp is required to be designed. Manual positioning measurement can be adopted, but the precision is not high and the efficiency is low.
Disclosure of Invention
The invention aims to solve the problems of high cost of performance index measurement by means of special equipment and the need of designing a special fixture; the quick detection mechanism for the cross section ellipticity of the space bent pipe is capable of quickly detecting the ellipticity of the cross section of the metal space bent pipe by adopting the problems of low positioning precision and low efficiency of manual measurement, is easy to adjust the measurement angle, has universality, and is simple to operate, low in cost and high in efficiency.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the quick detection mechanism for the ovality of the section of the space bent pipe comprises a bottom plate, wherein a vertical installation rod is installed on the bottom plate, an installation and adjustment platform is installed on the vertical installation rod, and an ovality measurer is installed on the installation and adjustment platform; the installation adjustment platform comprises an installation plane for installing an ellipticity measurer and 2 semicircular installation frames positioned at the bottom of the installation plane and used for adjusting angles, and the semicircular installation frames are provided with circular arc-shaped sliding grooves and first installation through holes.
The ellipticity measurer comprises a shell, a dial plate is arranged on the shell, an induction needle with internal threads and a transmission mechanism with external threads are arranged in the shell, and one end of the induction needle is positioned outside the ellipticity measurer; the internal thread on the induction needle is meshed with the external thread on the transmission mechanism; the external thread on the transmission mechanism is also provided with a pointer matched with the dial plate; the induction needle on install the erection column, shell internal wall still install the collar, erection column and collar between install the extension spring.
The vertical mounting rod is provided with a second mounting through hole and an elliptical positioning hole for adjusting the angle; the bottom of the vertical mounting rod is provided with a T-shaped sliding block which can be matched with a T-shaped sliding groove on the bottom plate, and the T-shaped sliding block is provided with a mounting hole; the bottom plate is provided with a T-shaped chute; the middle bottom of the T-shaped chute is provided with a mounting groove; the second mounting through hole on the vertical mounting rod is connected with the first mounting through hole on the semicircular mounting rack through a rotating shaft; the elliptical positioning holes on the vertical mounting rods are fixedly connected with the circular arc-shaped sliding grooves on the semicircular mounting frames through nuts and bolts after the vertical mounting rods are adjusted to the required angles.
An ellipticity measurer is arranged on the installation plane of the installation and adjustment platform through an installation angle code.
The T-shaped sliding chute on the bottom plate is internally provided with a T-shaped sliding block of a vertical installation rod, so that the quick detection mechanism slides in the T-shaped sliding chute and is fixedly connected with the installation groove in the T-shaped sliding chute through a nut bolt after sliding to a preset position.
The beneficial effects of the invention are as follows:
1) The position of the rapid detection mechanism on the bottom plate is adjustable, so that the universality and the flexibility of the rapid detection mechanism are improved.
2) The sensing needle and the pointer in the ellipticity measurer are connected through a threaded transmission mechanism. The slight displacement of the sensing needle close to the end of the bent pipe can be converted into obvious radian swing of the pointer in the dial plate, so that the sectional ellipticity of the space bent pipe can be rapidly detected to meet the requirement or standard through simple eye observation.
3) The installation adjustment platform is designed to be L-shaped, and is provided with an installation surface, so that the installation of the ellipticity measurer on the installation adjustment platform is facilitated.
4) The semicircular mounting frame of the mounting and adjusting platform is provided with the 180-degree arc-shaped sliding groove, so that the mounting and adjusting platform can be adjusted within the angle range of 0 to 180 degrees, and the application range and the universality of the rapid detection mechanism are improved.
5) The angle of measurement is easy to adjust, has universality, and is simple to operate, low in cost and high in efficiency.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of an ellipticity measurer;
FIG. 3 is an enlarged schematic view of the mounting adjustment platform
FIG. 4 is an enlarged schematic view of a vertical mounting bar;
fig. 5 is an enlarged schematic view of the base plate.
Detailed Description
The quick detection mechanism for the ovality of the cross section of the space bent pipe, as shown in fig. 1-5, comprises a bottom plate 5, wherein a vertical installation rod 3 is installed on the bottom plate 5, an installation adjustment platform 2 is installed on the vertical installation rod 3, and an ovality measurer 1 is installed on the installation adjustment platform 2; the installation adjustment platform 2 comprises an installation plane 21 for installing the ellipticity measurer 1 and 2 semicircular installation frames 22 which are positioned at the bottom of the installation plane 21 and used for adjusting angles, and the semicircular installation frames 22 are provided with circular arc-shaped sliding grooves 221 and first installation through holes 222.
The ellipticity measurer 1 comprises a shell 16, a dial 14 is arranged on the shell 16, a sensing needle 11 with internal threads 111 and a transmission mechanism 12 with external threads 121 are arranged in the shell 16, and one end of the sensing needle 11 is positioned outside the ellipticity measurer 1; the internal thread 111 on the induction needle 11 is meshed with the external thread 121 on the transmission mechanism 12; the external thread 121 on the transmission mechanism 12 is also provided with a pointer 13 matched with the dial 14; the induction needle 11 is provided with a mounting column 112, the inner wall surface of the shell 16 is also provided with a mounting ring 151, and a tension spring 15 is arranged between the mounting column 112 and the mounting ring 151.
The vertical mounting rod 3 is provided with a second mounting through hole 31 and an elliptical positioning hole 32 for adjusting the angle; the bottom of the vertical installation rod 3 is provided with a T-shaped sliding block 33 which can be matched with the T-shaped sliding groove 11 on the bottom plate 1, and the T-shaped sliding block 33 is provided with an installation hole 34; the bottom plate 5 is provided with a T-shaped chute 51; the middle bottom of the T-shaped chute 51 is provided with a mounting groove 52; the second mounting through hole 31 on the vertical mounting rod 3 is connected with the first mounting through hole 222 on the semicircular mounting frame 22 through the rotating shaft 4; the oval positioning hole 32 on the vertical mounting rod 3 and the circular arc-shaped chute 221 on the semicircular mounting frame 22 are fixedly connected through a nut and a bolt after being adjusted to a required angle.
An ellipticity measurer 1 is arranged on the installation plane 21 of the installation and adjustment platform 2 through an installation angle code 7.
The T-shaped sliding groove 51 on the bottom plate 5 is internally provided with the T-shaped sliding block 33 of the vertical installation rod 3 so as to realize the sliding of the rapid detection mechanism in the T-shaped sliding groove 51, and the installation hole 34 on the T-shaped sliding block 33 is fixedly connected with the installation groove 52 in the T-shaped sliding groove 51 through a nut bolt after the rapid detection mechanism slides to a preset position.
In the specific implementation, in the first step, a rapid detection mechanism for the ovality of the cross section of the bent pipe in the space is installed. The position of the sensing needle 11 in the ellipticity measurer 1 is adjusted so that the pointer 13 is positioned at the middle scale 10 degrees of the dial 14. Then, the ellipticity measuring instrument 1 is mounted on the mounting adjustment platform 2. And then the installation and adjustment platform 2 is connected with the vertical installation rod 3 through the rotating shaft 4, the angle between the installation and adjustment platform 2 and the bottom plate 5 is adjusted, and the pre-tightening is positioned initially. Finally, the vertical installation rod 3 is installed in the T-shaped chute 51 on the bottom plate 5, and pre-tightening is performed at the initial position.
And secondly, adjusting a rapid detection mechanism for the ovality of the cross section of the space bent pipe. The angle of the installation adjusting platform 2 is adjusted, so that the induction needle 11 in the ellipticity measurer 1 is exactly aligned with the angle of the section ellipticity of the bent pipe to be measured. The position of the vertical mounting rod 3 on the bottom plate 5 is adjusted so that the distance between the sensing needle 11 and the outer side of the bent pipe is equal to the maximum ovality allowed by the section of the bent pipe. And after the adjustment is finished, all the screws are screwed.
And thirdly, placing the space bent pipe 6, and rapidly detecting the ovality of the cross section of the space bent pipe. In the second step, the distance between the sensing needle 11 on the ellipticity measurer 1 and the bent pipe is set to be the distance of the maximum ellipticity allowed by the section of the bent pipe, if the bent pipe is put in, the bent pipe touches the sensing needle 11 to enable the sensing needle 11 to generate displacement, the sensing needle 11 can convert the fine displacement into obvious radian swing of the pointer 13 through the threaded transmission mechanism 12, and the section ellipticity of the space bent pipe 6 is not in accordance with the requirement. After the space elbow 6 is taken away, the sensing needle 11 is reset through the tension spring 15. In contrast, if the pointer 13 does not have arc oscillation after the space elbow 6 to be detected is placed in, it is indicated that the ovality of the planar space elbow 6 meets the set standard or requirement. Therefore, whether the cross section ovality of the space elbow 6 meets the requirement can be rapidly detected through simple visual observation.
The position of the space elbow section ovality quick detection mechanism on the bottom plate is adjustable, so that the universality and the flexibility of the quick detection mechanism are improved. And secondly, the sensing needle in the ellipticity measurer is connected with the pointer through a threaded transmission mechanism. The slight displacement of the sensing needle close to the end of the bent pipe can be converted into obvious radian swing of the pointer in the dial plate, so that the sectional ellipticity of the space bent pipe can be rapidly detected to meet the requirement or standard through simple eye observation. The reinstallation adjustment platform is designed to be L-shaped, and is provided with a mounting surface, so that the installation of the ellipticity measurer on the installation adjustment platform is facilitated. And the semicircular mounting frame of the mounting and adjusting platform is provided with a 180-degree arc-shaped chute, so that the mounting and adjusting platform can be adjusted within the angle range of 0 to 180 degrees, and the application range and the universality of the rapid detection mechanism are improved. The embodiment is easy to adjust the measuring angle, has universality, and is simple to operate, low in cost and high in efficiency.
Claims (3)
1. The quick detection mechanism for the ovality of the cross section of the space bent pipe is characterized by comprising a bottom plate (5), wherein a vertical installation rod (3) is installed on the bottom plate (5), an installation adjustment platform (2) is installed on the vertical installation rod (3), and an ovality measurer (1) is installed on the installation adjustment platform (2); the installation adjustment platform (2) comprises an installation plane (21) for installing the ellipticity measurer (1) and 2 semicircular installation frames (22) which are positioned at the bottom of the installation plane (21) and used for adjusting angles, wherein the semicircular installation frames (22) are provided with circular arc-shaped sliding grooves (221) and first installation through holes (222);
the ellipticity measurer (1) comprises a shell (16), a dial plate (14) is arranged on the shell (16), an induction needle (11) with an internal thread (111) and a transmission mechanism (12) with an external thread (121) are arranged in the shell (16), and one end of the induction needle (11) is positioned outside the ellipticity measurer (1); the internal thread (111) on the induction needle (11) is meshed with the external thread (121) on the transmission mechanism (12); the external thread (121) on the transmission mechanism (12) is also provided with a pointer (13) matched with the dial (14); the induction needle (11) is provided with a mounting column (112), the inner wall surface of the shell (16) is also provided with a mounting ring (151), and a tension spring (15) is arranged between the mounting column (112) and the mounting ring (151);
a second mounting through hole (31) and an elliptical positioning hole (32) for adjusting the angle are formed in the vertical mounting rod (3); the bottom of the vertical installation rod (3) is provided with a T-shaped sliding block (33) which can be matched with a T-shaped sliding groove (51) on the bottom plate (5), and the T-shaped sliding block (33) is provided with an installation hole (34); a T-shaped chute (51) is formed in the bottom plate (5); the middle bottom of the T-shaped chute (51) is provided with a mounting groove (52); the second mounting through hole (31) on the vertical mounting rod (3) is connected with the first mounting through hole (222) on the semicircular mounting rack (22) through the rotating shaft (4); the elliptical positioning holes (32) on the vertical mounting rods (3) are fixedly connected with the circular arc-shaped sliding grooves (221) on the semicircular mounting frame (22) through nuts and bolts.
2. The rapid detection mechanism for the ovality of the cross section of the space bent pipe according to claim 1 is characterized in that an ovality measurer (1) is arranged on an installation plane (21) of the installation adjustment platform (2) through an installation angle code (7).
3. The rapid detection mechanism for the ovality of the cross section of the space bent pipe according to claim 1 is characterized in that a T-shaped sliding block (33) of a vertical installation rod (3) is installed in a T-shaped sliding groove (51) on the bottom plate (5), and an installation hole (34) on the T-shaped sliding block (33) is fixedly connected with an installation groove (52) in the T-shaped sliding groove (51) through a nut and a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811184205.4A CN109047379B (en) | 2018-10-11 | 2018-10-11 | Quick detection mechanism for ovality of cross section of space bent pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811184205.4A CN109047379B (en) | 2018-10-11 | 2018-10-11 | Quick detection mechanism for ovality of cross section of space bent pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109047379A CN109047379A (en) | 2018-12-21 |
| CN109047379B true CN109047379B (en) | 2024-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811184205.4A Active CN109047379B (en) | 2018-10-11 | 2018-10-11 | Quick detection mechanism for ovality of cross section of space bent pipe |
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| Country | Link |
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| CN (1) | CN109047379B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109631795B (en) * | 2019-01-15 | 2024-03-26 | 浙江工业大学之江学院 | Elbow section ellipticity measuring device |
| CN109764825A (en) * | 2019-01-23 | 2019-05-17 | 浙江工业大学 | A kind of bend pipe ellipticity manual measurement device |
| CN109781025A (en) * | 2019-01-23 | 2019-05-21 | 浙江工业大学 | A kind of bend pipe ellipticity self-operated measuring unit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4977682A (en) * | 1989-02-10 | 1990-12-18 | Allen Gauge & Tool Company | Hand held ovality gauge |
| EP1393832A1 (en) * | 2002-08-27 | 2004-03-03 | Mannesmannröhren-Werke AG | Method and device for induction-bending of pipes |
| CN205718789U (en) * | 2016-03-24 | 2016-11-23 | 烟台杰瑞石油装备技术有限公司 | Coiled tubing ovality detector |
| CN209206101U (en) * | 2018-10-11 | 2019-08-06 | 浙江工业大学之江学院 | A kind of quick testing agency of space bent pipe ellipticity |
-
2018
- 2018-10-11 CN CN201811184205.4A patent/CN109047379B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4977682A (en) * | 1989-02-10 | 1990-12-18 | Allen Gauge & Tool Company | Hand held ovality gauge |
| EP1393832A1 (en) * | 2002-08-27 | 2004-03-03 | Mannesmannröhren-Werke AG | Method and device for induction-bending of pipes |
| CN205718789U (en) * | 2016-03-24 | 2016-11-23 | 烟台杰瑞石油装备技术有限公司 | Coiled tubing ovality detector |
| CN209206101U (en) * | 2018-10-11 | 2019-08-06 | 浙江工业大学之江学院 | A kind of quick testing agency of space bent pipe ellipticity |
Non-Patent Citations (2)
| Title |
|---|
| 弯管截面椭圆度的控制;周东亮, 刘秀梅;机械工人.热加工;20040609(第06期);全文 * |
| 钢管椭圆度测量仪设计及应用;高财禄;张艳梅;李刚;李洪臣;杨超雄;;焊管;20180328(第03期);全文 * |
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| CN109047379A (en) | 2018-12-21 |
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