CN109443204B - Complex bent pipe size detection method - Google Patents
Complex bent pipe size detection method Download PDFInfo
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- CN109443204B CN109443204B CN201811324333.4A CN201811324333A CN109443204B CN 109443204 B CN109443204 B CN 109443204B CN 201811324333 A CN201811324333 A CN 201811324333A CN 109443204 B CN109443204 B CN 109443204B
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- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 238000005452 bending Methods 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims description 15
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 6
- 238000000691 measurement method Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- G01B11/002—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model provides a complicated return bend size detection device, includes location detection workstation, its characterized in that: the automatic bending device comprises a positioning detection workbench, and is characterized by further comprising vertical guide rails, transverse guide rails, a sliding clamping device, longitudinal guide rails, a rotary vertical guide rail and a position tester, wherein the two vertical guide rails and the longitudinal guide rails are fixed on a horizontal plate of the positioning detection workbench respectively, the two ends of the transverse guide rails are in sliding fit with the two vertical guide rails, the rotary vertical guide rails and the longitudinal guide rails slide and are in running fit, the transverse guide rails and the rotary vertical guide rails are respectively in sliding fit with the clamping device to be used for clamping the two ends of a bent pipe to be fixed, and the position tester is arranged on the bent pipe to be. The device can quickly and accurately measure the size and the bending angle of the complex braking bent pipe on the bogie, can accurately measure the coordinate value of the bending point through the position tester, further determines the bending point with problems, ensures that each bent pipe which leaves a factory meets the size requirement of a drawing, and has the advantages of simple structure and convenient and accurate measurement method.
Description
Technical Field
The invention relates to detection of complex bent pipes, in particular to a size detection method of complex braking bent pipes on a railway vehicle bogie.
Background
The railway vehicle bogie has a complex structure and is provided with various mounting seats. In order to avoid the interference of complex structures, the braking bent pipes on the bogie are also different in shape and very complex. In the process of assembling the bogie pipeline, the problem that the pipeline is difficult to install or cannot be installed due to the overlong pipeline always occurs.
At present, a detection method of a brake bent pipe on a railway vehicle bogie is only rough measurement, one end of a straight pipe or a simple B-shaped bent pipe can be fixed on an operation table in a manual mode, and a linear distance from the end to the other end is measured by using a measuring tape. However, the complicated bent pipe solving method is usually that a design department analyzes the welding deviation of the clamping seat and checks the drawing size one by one, and as a result, the problem that the drawing size is not always the same is found. After a series of analysis, the reason is found to be that the pipeline cannot be bent to a specified angle or the bending angle is too large in the bending process, the actual size and the theoretical size of the bent pipe are greatly different after the accumulated bending deviation of the pipeline, the installation is influenced, the time and the labor are wasted in repair, the production efficiency is low, and the project period is delayed. Therefore, a method for detecting the size of the complex bent pipe needs to be developed, so that the size of the bent pipeline can be ensured to meet the requirement of the actual design size, and a plurality of problems in the pipeline installation process are reduced.
Disclosure of Invention
The invention aims to overcome the defects of the background technology and provide a method for detecting the size of a complex bent pipe, which ensures that each bent pipe leaving a factory meets the size requirements of drawings, is convenient and accurate to measure and avoids the delay of the time limit of vehicle delivery due to repair.
In order to achieve the above object, the present invention provides a method for detecting the size of a complex bent pipe, which is characterized by comprising the following steps:
1. horizontally fixing two ends of the bent pipe on a detection table with coordinate scales to obtain coordinate values of the two ends of the bent pipe, so that the overall size of the bent pipe meets the requirement;
2. the coordinate values of all bending points of the bent pipe in the drawing are determined, the bending points of the bent pipe are found out by using 2 position testers, the rectangular coordinate values of the bending points of the bent pipe are obtained by using a projection method, and the coordinate values of the bending points are compared with the coordinate values of all points in the drawing one by one to find out the bending points with problems when the bent pipe is bent for correction.
The detection platform comprises a pedestal, a vertical guide rail, a transverse guide rail, a sliding clamping device, a longitudinal guide rail, a rotary vertical guide rail and a position tester, wherein the pedestal is of a box structure formed by a horizontal bottom plate, the transverse vertical plate and the longitudinal vertical plate, the two vertical guide rails and the longitudinal guide rail are respectively fixed on the horizontal bottom plate of the detection platform, the two ends of the transverse guide rail are in sliding fit with the two vertical guide rails, the transverse guide rail is fixed on the vertical guide rail when sliding to a proper position, the rotary vertical guide rail and the longitudinal guide rail slide and are in running fit, the transverse guide rail and the rotary vertical guide rail respectively slide and are matched with the clamping device to be used for clamping the two ends of a bent pipe and then are fixed, and the position.
The sliding clamp holder is composed of a magnetic positioning seat and two semicircular magnetic positioning clamping blocks, a guide rail is arranged in the center of the magnetic positioning seat, and the two semicircular magnetic positioning clamping blocks slide with the guide rail and are in sliding fit and fixed with the transverse guide rail.
The position tester is of an upper semicircular split type box body structure and a lower semicircular split type box body structure, the upper surface of the upper box body is provided with a transverse horizontal tester and a longitudinal horizontal tester, two side surfaces and the lower surface of the lower box body are provided with laser emitting holes, the upper semicircular split type box body and the lower semicircular split type box body are combined to form an installation through hole, and the two position testers are sleeved on two sides of a bending position of the bent pipe and used for measuring coordinate values of bending points.
And magnetic positioning seats are arranged at two ends of the back of the transverse guide rail, and the transverse guide rail is connected with the vertical guide rail through the magnetic positioning seats in a sliding fit manner.
The vertical guide rail is provided with a magnetic positioning block in a sliding fit mode, a round hole is formed in the center of the upper face of the magnetic positioning block, the bottom face of the rotary vertical guide rail is connected with a base, a connecting shaft corresponding to the round hole is arranged on the bottom face of the base, and the base and the magnetic positioning block are matched with the connecting shaft through the round hole to achieve rotation.
The invention has the following positive effects: the detection method can quickly and accurately measure the size and the coordinates of the bending points of the complex braking bent pipe on the bogie, further determine the bending points with problems, ensure that each bent pipe leaving the factory meets the dimensional requirements of drawings, has simple operation, high accuracy and time and labor saving of the measurement method, and is beneficial to ensuring the traffic construction period.
Drawings
FIG. 1 is a schematic view of the structure of the inspection station of the present invention;
FIG. 2 is a schematic view of the structure of the slide clamp of FIG. 1;
fig. 3 is a schematic view of the position measuring apparatus of fig. 1.
Detailed Description
Referring to fig. 1, the embodiment of the present invention includes the steps of:
1. assembling a detection table: referring to fig. 1, fix vertical guide rail on detecting 1 horizontal base plate of platform pedestal, transverse guide 3 has magnetic force positioning seat 11 at the back, through magnetic force positioning seat and 2 sliding connection of vertical guide rail, fix longitudinal rail 5 in horizontal base plate inboard again, sliding fit unification magnetic positioning piece 8 on the longitudinal rail, the magnetic positioning piece has the disc base 9 normal running fit of connecting axle through upper surface center round hole and lower surface, the magnetic positioning piece circumferencial direction is provided with 360 degrees scale marks. A rotary vertical guide rail 6 is fixed on the disc base 9, and a sliding holder 4 is respectively matched on the transverse guide rail and the rotary vertical guide rail in a sliding way.
Referring to fig. 2, the sliding holder is composed of a magnetic positioning seat 403 and two semicircular magnetic positioning clamping blocks 402, a guide rail 401 is arranged at the center of the magnetic positioning seat, the end part of the elbow is inserted between the two semicircular magnetic positioning clamping blocks, the two semicircular magnetic positioning clamping blocks are pushed to clamp and fix the end part of the elbow, and then the fixing of the sliding holder and the transverse guide rail is realized by operating a control switch of the magnetic positioning seat.
Referring to fig. 3, the position tester is an upper and lower semicircular split type box structure, a horizontal level tester 702 and a longitudinal level tester 706 are installed on the upper surface of an upper box 701, laser emission holes 703 are formed in two side surfaces and the lower surface of a lower box 704, an installation through hole 705 is formed after the upper and lower semicircular split type boxes are combined, and the two position testers are sleeved on two sides of a bending position of a bent pipe and used for measuring coordinate values of bending points.
2. Fixing a bent pipe: firstly, one end of a bent pipe 10 is placed into a sliding clamp holder on a transverse guide rail, the bent pipe is rotationally adjusted to enable the other end of the bent pipe to be in a horizontal position, a rotary vertical guide rail is rotated to enable the aperture of the sliding clamp holder on the guide rail to be parallel to the unfixed end of the bent pipe, the position of the sliding clamp holder and the transverse guide rail, the position of the rotary vertical guide rail relative to a longitudinal guide rail and the position of the sliding clamp holder relative to the rotary vertical guide rail are adjusted, the other end of the bent pipe is placed into the sliding clamp holder on the rotary vertical guide rail, and the tight fit with the two ends of the bent pipe.
3. After the bent pipe is fixed, the coordinate values of the central points at the two ends of the bent pipe are read through the fixed position relation between the detection table and each guide rail, and the coordinate values of the two end points are compared with the coordinate values marked on the drawing, so that the whole size of the bent pipe is ensured to meet the requirements.
The pedestal of the detection platform is of a box structure formed by enclosing a horizontal bottom plate, a horizontal vertical plate and a longitudinal vertical plate, wherein the horizontal bottom plate is an (X, Y) coordinate display platform, the horizontal vertical plate is an (Y, Z) coordinate display platform, and the longitudinal vertical plate is an (X, Z) coordinate display platform. When the laser line illuminates a certain point or a certain line, the corresponding coordinate of the illuminated position can be identified and read.
4. Aiming at the measurement of the coordinate value of each bending point of the bent pipe, two position testers are required to be installed in the left and right straight pipe sections of the bending point. After confirming the position of the elbow to be clamped, the upper and lower bodies of the tester can be buckled, no matter how the direction of the elbow of the clamped section is, the horizontal and vertical horizontal testers on the upper surface of the upper box body of the position tester are required to be adjusted, so that the laser line emitted by the laser emission hole on the lower surface of the lower box body of the position tester can be vertical to the horizontal bottom plate of the detection table, and the laser line of the laser emission hole on the side surface of the position tester is vertical to the horizontal vertical plate and the vertical plate of the detection table. After the adjustment is completed, the intersection point of the laser lines projected by the two position testers on the horizontal bottom plate of the detection platform is the (X, Y) coordinate value of the bending point of the bent pipe, and the intersection point of the laser lines projected by the two position testers on the horizontal vertical plate or the vertical plate of the detection platform is the Z coordinate of the bending point of the bent pipe, so that the (X, Y, Z) coordinate value of the bending point is determined. And comparing the coordinate value of the point with the coordinate value marked on the drawing to determine whether the size of the bending point of the bent pipe meets the requirement, and measuring the coordinates of all the bending points of the bent pipe in the same way to determine whether the coordinate value meets the requirement.
Claims (4)
1. A method for detecting the size of a complex bent pipe is characterized by comprising the following steps:
(1) horizontally fixing two ends of the bent pipe on a detection table with transverse, longitudinal and vertical coordinate values to obtain the coordinate values of the two ends of the bent pipe, so that the overall size of the bent pipe meets the requirement;
the detection platform comprises a pedestal, a vertical guide rail, a transverse guide rail, a sliding holder, a longitudinal guide rail, a rotary vertical guide rail and a position tester, wherein the pedestal is in a box structure surrounded by a horizontal bottom plate, a transverse vertical plate and a longitudinal vertical plate;
the position tester is of an upper semicircular split box structure and a lower semicircular split box structure, the upper surface of the upper box is provided with a transverse horizontal tester and a longitudinal horizontal tester, two side surfaces and the lower surface of the lower box are provided with laser emitting holes, the upper semicircular split box and the lower semicircular split box are combined to form a mounting through hole, the two position testers are sleeved on two sides of a bent pipe bending position, laser lines emitted by the laser emitting holes on the lower surface of the lower box of the position tester can be vertical to a horizontal bottom plate of the detection table, and at the moment, the laser lines of the laser emitting holes on the side surfaces of the position testers are vertical to a transverse vertical plate and a longitudinal vertical plate of the;
(2) the coordinate values of all bending points of the bent pipe in the drawing are determined, the bending points of the bent pipe are found out by using 2 position testers, the rectangular coordinate values of the bending points of the bent pipe are obtained by using a projection method, and the coordinate values of the bending points are compared with the coordinate values of all points in the drawing one by one to find out the bending points with problems when the bent pipe is bent for correction.
2. The method for detecting the size of the complex elbow pipe according to claim 1, wherein the method comprises the following steps: the sliding clamp holder is composed of a magnetic positioning seat and two semicircular magnetic positioning clamping blocks, a guide rail is arranged in the center of the magnetic positioning seat, and the two semicircular magnetic positioning clamping blocks slide with the guide rail and are in sliding fit and fixed with the transverse guide rail.
3. The method for detecting the size of the complex elbow pipe according to claim 1, wherein the method comprises the following steps: and magnetic positioning seats are arranged at two ends of the back of the transverse guide rail, and the transverse guide rail is connected with the vertical guide rail through the magnetic positioning seats in a sliding fit manner.
4. The method for detecting the size of the complex elbow pipe according to claim 1, wherein the method comprises the following steps: the vertical guide rail is provided with a magnetic positioning seat in a sliding fit mode, a round hole is formed in the center of the upper face of the magnetic positioning seat, the bottom face of the rotary vertical guide rail is connected with a base, a connecting shaft corresponding to the round hole is arranged on the bottom face of the base, and the base and the magnetic positioning seat are matched with the connecting shaft through the round hole to achieve rotation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811324333.4A CN109443204B (en) | 2018-11-08 | 2018-11-08 | Complex bent pipe size detection method |
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| CN201811324333.4A CN109443204B (en) | 2018-11-08 | 2018-11-08 | Complex bent pipe size detection method |
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| CN109443204B true CN109443204B (en) | 2021-06-01 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109931845A (en) * | 2019-03-31 | 2019-06-25 | 浙江博凡动力装备股份有限公司 | A kind of pipe survey methods and its device |
| CN110044297B (en) * | 2019-04-22 | 2021-03-16 | 江苏亨通光导新材料有限公司 | Method for detecting bending degree of optical fiber preform |
| CN111982049A (en) * | 2020-08-26 | 2020-11-24 | 苏州工业职业技术学院 | Surveying instrument data processing method |
| CN116237672A (en) * | 2022-12-06 | 2023-06-09 | 中海海创智造科技(珠海)有限公司 | Precision Control Method of Building Pipe Heald |
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| US5685719A (en) * | 1995-01-13 | 1997-11-11 | Frank Bressler Rehabilitation Research, Inc. | Computer assisted communication system for rehabilitating individuals suffering from speech impairment and minimal mobility in their upper extremities |
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| CN101209461A (en) * | 2006-12-26 | 2008-07-02 | 上海宝钢工业检测公司 | Steel tube punching machine three-roller centring device center alignment degree on-line measurement method |
| 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 |
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| CN104482826A (en) * | 2014-12-01 | 2015-04-01 | 大连捷瑞流体控制股份有限公司 | Universal elbow gauge and use method thereof |
| CN108088354A (en) * | 2018-01-22 | 2018-05-29 | 江苏理工学院 | A kind of measurer for detecting bend pipe space angle degree |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106844537B (en) * | 2016-12-30 | 2020-11-17 | 重庆大学 | Organization management method for space-time map tile data |
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- 2018-11-08 CN CN201811324333.4A patent/CN109443204B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5685719A (en) * | 1995-01-13 | 1997-11-11 | Frank Bressler Rehabilitation Research, Inc. | Computer assisted communication system for rehabilitating individuals suffering from speech impairment and minimal mobility in their upper extremities |
| CN1719191A (en) * | 2005-05-18 | 2006-01-11 | 浙江大学 | Spatial curve-type long-distance micro-pipe inner surface topography measuring instrument and detection method |
| CN101209461A (en) * | 2006-12-26 | 2008-07-02 | 上海宝钢工业检测公司 | Steel tube punching machine three-roller centring device center alignment degree on-line measurement method |
| 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 |
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