CN108332656B - Elbow pipe detection device based on measuring light curtain - Google Patents
Elbow pipe detection device based on measuring light curtain Download PDFInfo
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- CN108332656B CN108332656B CN201711486840.3A CN201711486840A CN108332656B CN 108332656 B CN108332656 B CN 108332656B CN 201711486840 A CN201711486840 A CN 201711486840A CN 108332656 B CN108332656 B CN 108332656B
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- telescopic rod
- light curtain
- bent pipe
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- measuring light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
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- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
A bent pipe detection device based on a measuring light curtain comprises the measuring light curtain and a detection platform; support pieces are arranged at four corners of the detection platform, guide rails are fixed between the adjacent support pieces in the long edge direction, and a cross beam is arranged between the guide rails and is connected with the guide rails in a sliding manner; the measuring light curtains are correspondingly arranged at two ends of the cross beam; the detection platform between the guide rails is correspondingly provided with a bent pipe fixing piece, the bent pipe fixing piece comprises a horizontal telescopic rod and a vertical telescopic rod, a sliding groove is formed in the short edge direction of the detection platform, one end of the horizontal telescopic rod is connected with the detection platform in a sliding mode at the position of the sliding groove through a bolt, and the other end of the horizontal telescopic rod is connected with the bottom of the vertical telescopic rod; the upper part of the vertical telescopic rod is provided with a convex block matched with the caliber of the bent pipe. The invention has the beneficial effects that: the fixing device has high flexibility and is suitable for bent pipes with various sizes and models; the length, the radian and the like of the bent pipe can be detected simultaneously; convenient operation, detection efficiency is high, and measurement accuracy is high.
Description
Technical Field
The invention relates to the field of pipe fitting detection, in particular to a bent pipe detection device.
Background
The bent pipe is bent by adopting a complete set of bending equipment, and is widely used in machine equipment and pipelines. The indexes of the bent pipe such as size, ovality, torsion resistance and the like have close relation to the service life and safety of the bent pipe, so that the indexes of the bent pipe need to be strictly controlled when the bent pipe is delivered from a factory.
In the prior art, utility model patent with application number CN201720358405.1 discloses a pipe beam detection device, including frame and bottom plate, the pipe beam arranges on the bottom plate, just the bottom plate is fixedly connected with location clamping part and detection part, its characterized in that: the positioning and clamping portion includes: the clamping plate mechanism is provided with a clamping plate in clamping fit with the outer diameter of the tubular beam, and the end positioning mechanism is arranged at the bottom end of the tubular beam and is provided with a positioning part in contact with the bottom end surface; the detection section includes: the spring detection pin is provided with a spring pin matched with the detection hole of the tubular beam; the bent pipe detection mechanism is provided with two detection pins, and the pipe beam is positioned between the two detection pins and is provided with a bent pipe gap; the movable detection mechanism is provided with a movable detection part, and a movable gap is formed between the movable detection part and the tubular beam; the straight pipe detection mechanism is provided with two straight pipe detection parts, the pipe beam is positioned between the two straight pipe detection parts and is provided with a straight pipe gap and an overturning detection mechanism, and the overturning detection mechanism is provided with a profiling block which is in contact with the surface of the pipe beam.
However, in the positioning, clamping and measuring mode, a plurality of clamping plate mechanisms, a pressing mechanism, a straight pipe detection mechanism and the like need to be manufactured, the mechanisms are matched with the size and the shape of the pipe to be detected and are fixed on a bottom plate, and the mechanisms cannot be flexibly combined, when the size or the flexibility of a certain part of the pipe does not reach the standard, the pipe cannot be completely fit with the straight pipe detection mechanism, but the part which does not reach the standard is unknown before detection, so that the detection effect cannot be achieved, if the pipe is forcibly clamped and embedded in the straight pipe detection mechanism, the deformation of the pipe can be caused, and the measurement on the deformed pipe inevitably has deviation; and still need other measuring tool to assist and detect when indexes such as the radian of detecting the pipe fitting, crookedness, detection efficiency is lower, and is very inconvenient.
Disclosure of Invention
The invention aims to provide a device which can flexibly fix a bent pipe, has high measurement precision and is convenient to detect.
In order to achieve the purpose, the invention provides a bent pipe detection device based on a measuring light curtain, which has the following technical scheme:
a bent pipe detection device based on a measuring light curtain comprises the measuring light curtain and a detection platform; support pieces are arranged at four corners of the detection platform, guide rails are fixed between the adjacent support pieces in the long edge direction, and a cross beam is arranged between the guide rails and is connected with the guide rails in a sliding manner; the measuring light curtains are correspondingly arranged at two ends of the cross beam; the detection platform between the guide rails is correspondingly provided with a bent pipe fixing piece, the bent pipe fixing piece comprises a horizontal telescopic rod and a vertical telescopic rod, a sliding groove is formed in the short edge direction of the detection platform, one end of the horizontal telescopic rod is connected with the detection platform in a sliding mode at the position of the sliding groove through a bolt, and the other end of the horizontal telescopic rod is connected with the bottom of the vertical telescopic rod; the upper part of the vertical telescopic rod is provided with a convex block matched with the caliber of the bent pipe.
According to the length difference of the bent pipe, the horizontal telescopic rod can be stretched in the horizontal direction, and the position of the bent pipe fixing piece can be adjusted in the front, back, left and right directions by matching with the sliding groove; according to the different curvatures of the bent pipe, the vertical telescopic rod can be matched with the horizontal telescopic rod and the sliding groove to adjust the position in a three-dimensional space, and the bent pipe is suitable for different bent pipe models and sizes; the bent pipe is fixed on the detection platform, so that a fixing mode of using a plurality of groups of fixing blocks in the prior art is replaced; a measuring light curtain on the cross beam scans the bent pipe on the guide rail;
the measuring light curtain is a special photoelectric sensor, the detection light that produces, generate the light array, form a light curtain, because each position camber of return bend is different, light shines and can takes place reflection and refraction on the object, thereby lead to light intensity to change, its change value feeds back to the controller, cooperation computer software, model building to the return bend, compare with the model data of the return bend standard component of depositing in advance, the realization is to the size of object, crookedness and the detection function of external profile.
The beneficial technical effects of the invention are as follows:
1. the fixing device has high flexibility and is suitable for bent pipes with various sizes and models;
2. the data of the size, the bending degree, the torsion degree and the like of the bent pipe can be detected simultaneously;
3. the operation is convenient, and the detection efficiency is high;
4. the measurement precision is high.
Drawings
FIG. 1 is a schematic structural diagram of a bent pipe detection device based on a measuring light curtain according to the present invention;
FIG. 2 is a schematic front view of a measuring light curtain-based elbow detection device according to the present invention;
FIG. 3 is an enlarged view of a portion of the invention at I of FIG. 1;
FIG. 4 is an enlarged view of a portion of the invention at II in FIG. 1;
FIG. 5 is an enlarged view of a portion of the invention at III in FIG. 1.
In the figure: 1. measuring a light curtain; 2. a detection platform; 3. a support member; 4. a guide rail; 5. a cross beam; 6. a bent pipe fixing piece; 61. a horizontal telescopic rod; 62. a vertical telescopic rod; 7. a sliding groove; 8. a bolt; 9. a bump; 10. a pulley; 11. a drive motor; 12. a graduated scale; 13. an L-shaped auxiliary supporting block; 14. a stop lever.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, in an embodiment of the present invention, an elbow detecting apparatus based on a measuring light curtain includes a measuring light curtain 1 and a detecting platform 2; support pieces 3 are arranged at four corners of the detection platform 2, guide rails 4 are fixed between the adjacent support pieces 3 in the long edge direction, cross beams 5 are arranged between the guide rails 4, and the cross beams 5 are connected with the guide rails 4 in a sliding manner; the measuring light curtain 1 is correspondingly arranged at two ends of the cross beam 5; the utility model discloses a detection platform, including guide rail 4, elbow fixing piece 6 includes horizontal telescopic link 61 and perpendicular telescopic link 62, and detection platform 2's minor face direction is provided with sliding tray 7, and bolt 8 is passed through to horizontal telescopic link 61 one end at sliding tray 7 position and detection platform 2 sliding connection, and the bottom of perpendicular telescopic link 62 is connected to the other end.
According to the different lengths of the bent pipes, the horizontal telescopic rod 61 can be stretched in the long side direction of the detection platform 2, and the horizontal telescopic rod 61 can move in the short side direction of the detection platform 2 through the adjusting bolt 8, so that the position of the bent pipe fixing piece 6 can be adjusted in the front, back, left and right directions; according to the different bending degrees of the bent pipe, the vertical telescopic rod 62 can be matched with the horizontal telescopic rod 61 and the sliding groove 7 to adjust the position in a three-dimensional space, and the bent pipe bending device is suitable for different bent pipe models and sizes; the bent pipe is fixed on the detection platform 2, and the mode that a plurality of sets of fixing blocks are used for fixing in the prior art is replaced. The measuring light curtain 1 on the beam 5 can scan on the guide rail 4 in a sliding way; the measuring light curtain 1 is a special photoelectric sensor, generates detection light to generate a light array to form a light curtain, and is matched with a controller and software thereof to realize the measuring function of the size and the external profile of an object, thereby replacing manual observation.
The upper part of the vertical telescopic rod 62 is provided with a convex block 9 matched with the caliber of the bent pipe. When the device is used, two ports of the bent pipe are required to be inserted into the convex block 9, the hanging effect is achieved, the operation is simple, and the detection efficiency is improved. The elbow is fixed by matching with the elbow fixing piece 6. The lug 9 can also be manually disassembled and replaced according to different types of bent pipes. In this embodiment, the protrusion 9 has three calibers, and is suitable for bending pipes with two parallel end ports.
In the embodiment of the present invention, the two ends of the lower side of the cross beam 5 are provided with a pulley 10 and a driving motor 11, and the pulley 10 is axially provided with a gear and is engaged with a transmission gear of the driving motor 11. In the using process, the driving motor 11 is controlled by the controller to drive the measuring light curtain 1 on the beam 5 to scan, and the controller controls the scanning speed of the measuring light curtain 1 by controlling the power of the driving motor 11.
In the embodiment of the present invention, a graduated scale 12 is disposed on one side of the sliding groove 7. In the actual use process, the position of the elbow standard components of different models on the detection platform 2 is marked on one side of the sliding groove 7, the position of the elbow fixing component 6 in the short side direction can be adjusted in advance as required, and the telescopic lengths of the horizontal telescopic rod 61 and the vertical telescopic rod 62 only need to be adjusted when the elbow fixing component is used.
In the embodiment of the present invention, an L-shaped auxiliary support block 13 is disposed on a side surface of the bottom of the vertical telescopic rod 62, the L-shaped auxiliary support block 13 is disposed to rotate up and down, and a stop lever 14 is further disposed to match the position of the auxiliary support block. The horizontal telescopic rod 61 is connected with the bottom of the vertical telescopic rod 62, when the horizontal telescopic rod 61 extends out, the extending end is in a suspended state, and the bent pipe fixing piece 6 can be inclined when the bent pipe is fixed; the L-shaped auxiliary supporting block 13 can rotate downwards, and the lower end of the L-shaped auxiliary supporting block is in contact with the detection platform 2 to play a role in auxiliary supporting of the bent pipe fixing piece 6; after the use is finished, the L-shaped auxiliary supporting block 13 is rotated upwards and hung on the stop lever 14; because the right angle can be obstructed from the plane when the L-shaped auxiliary supporting block 13 rotates downwards, the bottom corner at the lower end of the L-shaped auxiliary supporting block 13 is rounded.
In the present embodiment, the length of the sliding groove 7 is smaller than the distance between the pulleys 10 at both ends of the cross beam 5. The length of the sliding groove 7 is prevented from being too long, and the influence on the detection precision of the measuring light curtain 1 caused by jolt of the pulley 10 when the pulley passes through the sliding groove 7 on the detection platform 2 is avoided.
In the embodiment of the present invention, the measuring light curtain 1 is a parallel detecting light curtain.
The measuring light curtain 1 is a special photoelectric sensor, can use modulated light in order to get rid of the possible influence of surrounding light source, the detection light of its production, generate the light array, form a light curtain, scan whole return bend, because each position camber of return bend is different, light shines and can take place reflection and refraction on the object, thereby lead to light intensity to change, its variation value feeds back to the controller, cooperation computer software, model building is carried out to the return bend, compare with the model data of the return bend standard component of depositing in advance, realize the detection function to the size of object, crookedness and external profile. The staff can directly see the contrast data of return bend size, radian, crookedness etc. on the display screen, replaced detection instrument such as manual observation or clearance chi, clearance gauge and radian measuring tool.
The measuring light curtain used in the invention is a product in the prior art, a controller used in cooperation with the measuring light curtain can be programmed and set through software, a plurality of scanning modes and detection and analysis modes can be provided, and the measuring light curtain can be communicated with a PLC or a computer through a serial interface.
It should be understood that the examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that any changes and modifications to the present invention may occur to those skilled in the art after reading the present teachings, and such equivalents are also intended to be limited by the appended claims.
Claims (4)
1. A bent pipe detection device based on a measuring light curtain comprises the measuring light curtain (1) and a detection platform (2); the method is characterized in that: supporting pieces (3) are arranged at four corners of the detection platform (2), guide rails (4) are fixed between the adjacent supporting pieces (3) in the long edge direction, cross beams (5) are arranged between the guide rails (4), and the cross beams (5) are connected with the guide rails (4) in a sliding manner; the measuring light curtain (1) is correspondingly arranged at two ends of the cross beam (5); the detection platform (2) between the guide rails (4) is correspondingly provided with a bent pipe fixing piece (6), the bent pipe fixing piece (6) comprises a horizontal telescopic rod (61) and a vertical telescopic rod (62), a sliding groove (7) is formed in the short side direction of the detection platform (2), one end of the horizontal telescopic rod (61) is in sliding connection with the detection platform (2) at the position of the sliding groove (7) through a bolt (8), and the other end of the horizontal telescopic rod is connected with the bottom of the vertical telescopic rod (62); a convex block (9) matched with the caliber of the bent pipe is arranged at the upper part of the vertical telescopic rod (62), and a graduated scale (12) is arranged at one side of the sliding groove (7); the side of the bottom of the vertical telescopic rod (62) is provided with an L-shaped auxiliary supporting block (13), the L-shaped auxiliary supporting block (13) is arranged in a vertically rotating mode, and a stop lever (14) matched with the L-shaped auxiliary supporting block (13) in position is further arranged.
2. The measurement light curtain-based bend detection device according to claim 1, wherein: and pulleys (10) and a driving motor (11) are arranged at two ends of the lower side of the cross beam (5), and gears are axially arranged on the pulleys (10) and are meshed with transmission gears of the driving motor (11).
3. The measurement light curtain-based bend detection device of claim 2, wherein: the length of the sliding groove (7) is smaller than the distance between the pulleys (10) at the two ends of the cross beam (5).
4. The apparatus according to any of claims 1 to 3 for detecting bent pipe based on measuring light curtain, wherein: the measuring light curtain (1) is one of a cross detection light curtain or a parallel detection light curtain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711486840.3A CN108332656B (en) | 2017-12-29 | 2017-12-29 | Elbow pipe detection device based on measuring light curtain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711486840.3A CN108332656B (en) | 2017-12-29 | 2017-12-29 | Elbow pipe detection device based on measuring light curtain |
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| Publication Number | Publication Date |
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| CN108332656A CN108332656A (en) | 2018-07-27 |
| CN108332656B true CN108332656B (en) | 2020-11-10 |
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| CN201711486840.3A Active CN108332656B (en) | 2017-12-29 | 2017-12-29 | Elbow pipe detection device based on measuring light curtain |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109047380B (en) * | 2018-10-11 | 2024-02-13 | 浙江工业大学之江学院 | Benchmark positioning mechanism for rapid detection of bent pipe |
| CN109079000B (en) * | 2018-10-11 | 2024-03-08 | 浙江工业大学之江学院 | Quick return bend resilience detection mechanism |
| CN109141788B (en) * | 2018-10-11 | 2024-05-07 | 浙江工业大学之江学院 | Quick detection device of space return bend resilience |
| CN111102922A (en) * | 2019-12-30 | 2020-05-05 | 陕西泰诺特检测技术有限公司 | Pipeline geometric dimension detection device and method |
| CN111397534B (en) * | 2020-04-16 | 2021-09-14 | 杭州酬催科技有限公司 | Steel plate bending degree detection device based on light refraction principle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2920804A1 (en) * | 1979-05-22 | 1980-11-27 | Lignomat Gmbh | Measuring dia of tree trunks etc. - using IR light curtain and analyser enabling vol. computation |
| CN201138178Y (en) * | 2007-12-20 | 2008-10-22 | 中国南车集团铜陵车辆厂 | Tri-dimensional bent pipe adjusting detecting device |
| CN101701798A (en) * | 2009-01-20 | 2010-05-05 | 南京理工大学 | Method and device for automatic detection of composite errors of ball screw spiral raceway |
| CN103335602B (en) * | 2013-07-08 | 2016-06-08 | 重庆科技学院 | A kind of light veil type axial workpiece multi-work-station multiparameter high-precision measuring method and device |
| CN104344999A (en) * | 2013-07-24 | 2015-02-11 | 深圳市弗赛特检测设备有限公司 | A high-temperature internal pressure fatigue testing machine |
| CN107328332A (en) * | 2016-04-29 | 2017-11-07 | 东风银轮（十堰）汽车热交换器有限公司 | A kind of cubing of adjustable pipeline space structure |
| CN106989682B (en) * | 2017-06-12 | 2019-08-30 | 重庆科技学院 | A kind of light veil type axial workpiece measuring instrument gauge head unit and its measurement method |
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Effective date of registration: 20201014 Address after: 401520 No.206 nongchuang Road, Caojie street, Hechuan District, Chongqing Applicant after: Chongqing Jinjiang Zhixin Automobile Parts Co.,Ltd. Address before: 401572 No. 206 Nong Chuang Road, Hejie street, Hechuan District, Chongqing Applicant before: CHONGQING DADE MACHINERY MANUFACTURING Co.,Ltd. |
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