CN108592828A - Photoelectric sensor deep hole axiality detection device and its detection method - Google Patents
Photoelectric sensor deep hole axiality detection device and its detection method Download PDFInfo
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- CN108592828A CN108592828A CN201810699315.8A CN201810699315A CN108592828A CN 108592828 A CN108592828 A CN 108592828A CN 201810699315 A CN201810699315 A CN 201810699315A CN 108592828 A CN108592828 A CN 108592828A
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- end plate
- detection module
- psd
- circular end
- photoelectric sensor
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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
- G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B11/272—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes using photoelectric detection means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a kind of photoelectric sensor deep hole axiality detection device and its detection methods, including ball-screw workbench, dividing head, rotary shaft, detection module and laser light source.Sensor used in detection module includes PSD and LTS.Ball-screw workbench is mounted on the horizontal table of adjustable position, and dividing head is mounted on the sliding block of ball screw workbench, can be moved axially with sliding block.Axis connection dividing head and detection module are rotated, detection module is enable angularly to be rotated with dividing head.Laser light source is fixed by tripod, light source vertical incidence PSD photosurfaces.Sensor output signal, by computer acquisition, and carries out gathered data coaxiality error is calculated by signal wire.Mechanical structure of the present invention is simple, easy to operate, in conjunction with photoelectric sensor and computer technology, it can be achieved that quickly accurate measure.
Description
Technical field
The invention belongs to photoelectrical position sensor (PSD) and triangulation sensors（LTS）Deep hole concentricity detect skill
Art, and in particular to a kind of photoelectric sensor deep hole axiality detection device and its detection method.
Background technology
The coaxiality error of core component of the extrusion cylinder as hydrostatic extruder, end face influences product geometric accuracy, right
The eccentricity of hollow profile influences also very big；When serious, product is damaged, or even extruder ontology can be destroyed.
In actual extrusion cylinder production process, the detection for extrusion cylinder end face concentricity is a kind of qualitatively inspection
It surveys, whether can judge whether extrusion cylinder is qualified by extrusion cylinder endoporus using the cylinder measurer of standard, lack sentencing for numeralization
Disconnected foundation.
Based on traditional deep hole coaxiality detecting method needs accurate fixture, and it is limited to fixed machinery knot
Structure, same axiality detection device can only measure the concentricity of fixed inner diameter deep hole, and versatility is poor.
Three-coordinates measuring machine has precision high, speed is fast, the good spy of versatility as the instrument for measuring deep hole hole concentricity
Point, but its is expensive, it is difficult to received by medium-sized and small enterprises.
Invention content
The purpose of the present invention is to provide a kind of photoelectric sensor deep hole axiality detection device and its detection method, for
The problems such as traditional deep hole concentricity detection means needs precise clamp as support, and poor there are versatility.
Realize that the technical solution of the object of the invention is：A kind of photoelectric sensor deep hole axiality detection device, including
Ball-screw workbench, dividing head, rotary shaft, detection module and laser light source.The ball-screw workbench is fixed on adjustable
On the platform of position, dividing head is fixed on the sliding block of ball-screw workbench, by rotating the handwheel of ball-screw workbench,
The displacement of control slide block；Rotary shaft one end is connected on the dividing head, and the other end and detection module are connected so that detection module
It can be rotated with dividing head；The light vertical incidence of laser light source is to detection module.
The detection module includes LTS, PSD and fixed frame, and the fixed frame includes the first circular end plate, the second round nose
Plate and three connecting rods, three connecting rod both ends are separately connected the first circular end plate and the second circular end plate, the first circular end plate
Center is equipped with circular hole, and the center of the second circular end plate is equipped with square hole, and three connecting rods are in equilateral triangle about circular end plate center
Shape is symmetrical, wherein the circular hole of the first circular end plate and rotary shaft are connected, LTS is fixed on the outer wall of the second circular end plate and not
Square hole is blocked, PSD is fixed on the inner wall center of the second circular end plate, just blocks square hole, the light vertical incidence of laser light source
To the photosurface of PSD, PSD reflects facula position in real time.
The LTS is close to the arbitrary a line of square hole so that the second circular end plate certainly exists the throwing of a radius and LTS
Optical axis coincidence.
The laser light source, cylinder to be measured and PSD common optical axis are set gradually.
The ball-screw workbench uses the hand ball-screw workbench of standard type.
A kind of detection method based on photoelectric sensor deep hole axiality detection device, method and step are as follows：
Cylinder to be measured is fixed on a fixed levelling bench of height by step 1, is transferred to step 2；
Step 2, the detection of photoelectric sensor deep hole concentricity are fixed on the levelling bench of a position adjustable, adjust levelling bench,
So that the axis of the deep hole of the central axis and cylinder to be measured of whole device is transferred to step 3 substantially in same position；
The laser beam that step 3, adjustment laser light source position make laser light source send out impinges perpendicularly on the photosurface center of PSD,
It is transferred to step 4.
Step 4, the handwheel for rotating ball-screw workbench so that detection module, which enters, waits for sounding hole, is transferred to step 5；
Step 5, rotation dividing head so that rotary shaft drive detection module rotation, when the second circular end plate outside wall surface with it is to be measured
When the end face of cylinder is just concordant for the first time, the data of LTS and PSD are sampled every 5 °, are transferred to step 6；
Step 6 obtains its central coordinate of circle according to each point position data obtained by PSD using its track of least square fitting
As rotation center coordinate, it is transferred to step 7；
Step 7 obtains the data of corresponding points according to LTS, and formula is sought in conjunction with rotation center coordinate and the least square method center of circle,
The central coordinate of circle that surveyed section is acquired by calculating, is transferred to step 8；
Step 8, rotation dividing head so that rotary shaft drives detection module rotation, is waited for when the outside wall surface of the second circular end plate enters
It surveys in the deep hole of cylinder, the data of LTS and PSD is sampled every 5 °, return to step 6, the center of circle for measuring different cross section is sat
Mark, and they are projected to the same coordinate system, with the central coordinate of circle of these points of least square fitting, this central coordinate of circle conduct
It waits for sounding hole datum axis coordinate, calculates each section center of circle to the distance of reference axis, 2 times of maximum value therein are to wait for depth measurement
Hole coaxiality error.
Compared with prior art, the present invention its remarkable advantage is：（1）It is surveyed relative to traditional mechanical coaxiality of inner hole
Amount device needs close fixture and skilled person's work skill to determine that the datum axis of determinand, the present invention pass through LTS, PSD
Combined use with computer solves the problems, such as that existing coaxiality of inner hole measurement exists well.
（2）The use of computer and photoelectric sensor is also in mechanical device motion process, and the concentricity of endoporus is real
When measurement provide possibility.
（3）Hardware configuration is simple, easy to operate, and testing result is accurate, versatile.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the detection module structural schematic diagram of the present invention.
Fig. 3 is the three-view diagram of the detection module of the present invention；Wherein（a）For front view,（b）For left view,（c）To overlook
Figure,（d）For right view.
Wherein, ball-screw workbench 1, dividing head 2, rotary shaft 3, detection module 4, triangulation sensor（LTS）5、
Optoelectronic Position Sensitive Detector（PSD）6, cylinder 7 to be measured, laser light source 8, fixed frame 9, the first circular end plate 9-1, the second circle
End plate 9-2, connecting rod 9-3.
Specific implementation mode
Present invention is further described in detail below in conjunction with the accompanying drawings.
In conjunction with Fig. 1 to Fig. 3, a kind of photoelectric sensor deep hole axiality detection device, including ball-screw workbench 1, point
Spend head 2, rotary shaft 3, detection module 4 and laser light source 8.
The ball-screw workbench 1 is bolted on the platform of position adjustable, and dividing head 2 is fixed by bolts to
On the sliding block of ball-screw workbench 1, by rotating the handwheel of ball-screw workbench 1, the displacement of sliding block can control.Rotary shaft
3 one end are connected on the dividing head 2, and the other end and detection module 4 are connected so that detection module 4 can be revolved with dividing head 2
Turn.The light vertical incidence of laser light source 8 is to detection module 4.
The ball-screw workbench 1 uses the hand ball-screw workbench of standard type purchased in market.
The detection module 4 includes LTS5, PSD6 and fixed frame 9, and the fixed frame includes the first circular end plate 9-1, the
Two circular end plate 9-2 and three connecting rod 9-3, three both ends connecting rod 9-3 are separately connected the circles of the first circular end plate 9-1 and second
Shape end plate 9-2, the first centers circular end plate 9-1 are equipped with circular hole, and the center of the second circular end plate 9-2 is equipped with square hole, three connections
Bar 9-3 is symmetrical in equilateral triangle shape about circular end plate center, wherein the circular hole of the first circular end plate 9-1 and rotary shaft 3
It is connected, LTS5 is fixed by bolts to the outer wall of the second circular end plate 9-2 and does not block square hole, and PSD6 is bolted on second
The inner wall center of circular end plate 9-2, just blocks square hole, the light vertical incidence of laser light source 8 to the photosurface of PSD6, PSD6
Reflection facula position in real time.
The LTS5 is close to the arbitrary a line of square hole so that the second circular end plate 9-2 certainly exist a radius with
The light projector overlapping of axles of LTS5.
Wherein, laser light source 8, cylinder to be measured 7 and PSD6 common optical axis are set gradually.
The photoelectric sensor deep hole axiality detection device, detecting step are as follows：
Cylinder 7 to be measured is fixed on by V-block on a fixed levelling bench of height by step 1, is transferred to step 2.
Step 2, photoelectric sensor deep hole axiality detection device on the levelling bench of a position adjustable, are adjusted by bolt
Whole levelling bench so that the axis of the deep hole of the central axis of whole device and cylinder to be measured 7 is right herein substantially in same position
Position relative to traditional mechanical coaxiality of inner hole measuring device without especially precisely, needing close fixture to determine reference axis
Line, the present invention are solved by LTS5, the combined use of PSD6 and computer existing for existing coaxiality of inner hole measurement well
Problem is transferred to step 3.
Step 3, laser light source 8 are fixed on tripod, and adjustment tripod positions make the laser beam that laser light source 8 is sent out
The photosurface center for impinging perpendicularly on PSD6, is transferred to step 4.
The handwheel of step 4, rotation ball-screw workbench 1 so that detection module 4, which enters, waits for sounding hole, is transferred to step 5.
Step 5, rotation dividing head 2 so that rotary shaft 3 drives detection module 4 to rotate, when outside the second circular end plate 9-2
When wall surface and the just concordant for the first time end face of cylinder 7 to be measured, the data of LTS5 and PSD6 are sampled every 5 °, are transferred to step
Rapid 6.
Step 6 obtains its center of circle according to 6 each point position data of gained of PSD using its track of least square fitting
Coordinate is transferred to step 7 as rotation center coordinate.
Step 7 obtains the data of corresponding points according to LTS 5, is sought in conjunction with rotation center coordinate and the least square method center of circle
Formula acquires the central coordinate of circle in surveyed section by calculating, is transferred to step 8.
Step 8, rotation dividing head 2 so that rotary shaft 3 drives detection module 4 to rotate, when outside the second circular end plate 9-2
Wall surface enters in the deep hole of cylinder 7 to be measured, is sampled to the data of LTS5 and PSD6 every 5 °, return to step 6 measures difference
The central coordinate of circle in section, and they are projected to the same coordinate system, the central coordinate of circle that these are put with least square fitting, this
Central coordinate of circle as waiting for sounding hole datum axis coordinate, calculate each section center of circle to reference axis distance, the 2 of maximum value therein
It is to wait for sounding hole coaxiality error again.
The cylinder to be measured 7 of the present invention is the cylinder with certain depth, such as extrusion cylinder, gun barrel, hollow shaft, deep hole
The similar structures such as oil circuit.
Claims (6)
1. a kind of photoelectric sensor deep hole axiality detection device, it is characterised in that：Including ball-screw workbench（1）, indexing
Head（2）, rotary shaft（3）, detection module（4）And laser light source（8）；
The ball-screw workbench（1）It is fixed on the platform of position adjustable, dividing head（2）It is fixed on ball-screw workbench
（1）Sliding block on, pass through rotate ball-screw workbench（1）Handwheel, the displacement of control slide block；Rotary shaft（3）One end is connected
In the dividing head（2）On, the other end and detection module（4）It is connected so that detection module（4）It can be with dividing head（2）It revolves together
Turn；Laser light source（8）Light vertical incidence to detection module（4）.
2. photoelectric sensor deep hole axiality detection device according to claim 1, it is characterised in that：The detection module
（4）Including LTS（5）、PSD（6）And fixed frame（9）, the fixed frame includes the first circular end plate（9-1）, the second circular end plate
（9-2）With three connecting rods（9-3）, three connecting rods（9-3）Both ends are separately connected the first circular end plate（9-1）With the second circle
End plate（9-2）, the first circular end plate（9-1）Center is equipped with circular hole, the second circular end plate（9-2）Center be equipped with square hole, three
Connecting rod（9-3）It is symmetrical in equilateral triangle shape about circular end plate center, wherein the first circular end plate（9-1）Circular hole with
Rotary shaft（3）It is connected, LTS（5）It is fixed on the second circular end plate（9-2）Outer wall and do not block square hole, PSD（6）It is fixed on
Two circular end plates（9-2）Inner wall center, just block square hole, laser light source（8）Light vertical incidence to PSD（6）Light
Quick face, PSD（6）Reflection facula position in real time.
3. photoelectric sensor deep hole axiality detection device according to claim 1, it is characterised in that：The LTS（5）Tightly
Paste the arbitrary a line of square hole so that the second circular end plate（9-2）Certainly exist a radius and LTS（5）Light projector overlapping of axles.
4. photoelectric sensor deep hole axiality detection device according to claim 1, it is characterised in that：The laser light source
（8）, cylinder to be measured（7）And PSD（6）Common optical axis is set gradually.
5. photoelectric sensor deep hole axiality detection device according to claim 1, it is characterised in that：The ball-screw
Workbench（1）Using the hand ball-screw workbench of standard type.
6. a kind of detection method based on photoelectric sensor deep hole axiality detection device described in claim 1, feature exist
In method and step is as follows：
Step 1, by cylinder to be measured（7）It is fixed on a fixed levelling bench of height, is transferred to step 2；
Step 2, the detection of photoelectric sensor deep hole concentricity are fixed on the levelling bench of a position adjustable, adjust levelling bench,
So that the central axis and cylinder to be measured of whole device（7）Deep hole axis substantially in same position, be transferred to step 3；
Step 3, adjustment laser light source（8）Position makes laser light source（8）The laser beam sent out impinges perpendicularly on PSD（6）Light
Quick face center, is transferred to step 4；
Step 4, rotation ball-screw workbench（1）Handwheel so that detection module（4）Into sounding hole is waited for, it is transferred to step 5；
Step 5, rotation dividing head（2）So that rotary shaft（3）Drive detection module（4）Rotation, when the second circular end plate（9-2）
Outside wall surface and cylinder to be measured（7）End face just for the first time it is concordant when, every 5 ° to LTS（5）And PSD（6）Data carry out
Sampling, is transferred to step 6；
Step 6, according to PSD（6）Each point position data of gained obtain its center of circle seat using its track of least square fitting
It is denoted as rotation center coordinate, being transferred to step 7；
Step 7, according to LTS（5）The data of corresponding points are obtained, public affairs are sought in conjunction with rotation center coordinate and the least square method center of circle
Formula acquires the central coordinate of circle in surveyed section by calculating, is transferred to step 8；
Step 8, rotation dividing head（2）So that rotary shaft（3）Drive detection module（4）Rotation, when the second circular end plate（9-2）
Outside wall surface enter cylinder to be measured（7）Deep hole in, every 5 ° to LTS（5）And PSD（6）Data sampled, return to step
6, the central coordinate of circle of different cross section is measured, and they are projected to the same coordinate system, these are put with least square fitting
Central coordinate of circle, this central coordinate of circle as waiting for sounding hole datum axis coordinate, calculate each section center of circle to reference axis distance, wherein
2 times of maximum value be to wait for sounding hole coaxiality error.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810699315.8A CN108592828A (en) | 2018-06-29 | 2018-06-29 | Photoelectric sensor deep hole axiality detection device and its detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810699315.8A CN108592828A (en) | 2018-06-29 | 2018-06-29 | Photoelectric sensor deep hole axiality detection device and its detection method |
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| CN108592828A true CN108592828A (en) | 2018-09-28 |
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ID=63634662
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| CN201810699315.8A Pending CN108592828A (en) | 2018-06-29 | 2018-06-29 | Photoelectric sensor deep hole axiality detection device and its detection method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109655017A (en) * | 2019-02-25 | 2019-04-19 | 沈阳航空航天大学 | A kind of pipeline the coaxial degree measurement |
| CN109668530A (en) * | 2019-01-29 | 2019-04-23 | 广州中船文冲船坞有限公司 | A kind of axis and axis hole centering detection method and centering detection device |
| CN110186400A (en) * | 2019-06-28 | 2019-08-30 | 哈尔滨焊接研究院有限公司 | Friction welding coaxial accuracy detection device and its detection method |
| CN111551135A (en) * | 2020-06-30 | 2020-08-18 | 安徽理工大学 | Large component double-through-hole coaxiality measuring device based on PSD and determining method |
| CN112539713A (en) * | 2019-09-23 | 2021-03-23 | 南京理工大学 | Device and method for detecting straightness of small-caliber body pipe |
| CN113252313A (en) * | 2021-05-13 | 2021-08-13 | 九江精密测试技术研究所 | Device for detecting coaxiality error of laser axis and telescope collimation axis |
| CN114034255A (en) * | 2021-12-13 | 2022-02-11 | 东莞市启思达智能技术有限公司 | Movement detection device, method and system |
| CN114377994A (en) * | 2021-12-10 | 2022-04-22 | 江苏大学 | Coaxial relation rapid detection tool based on photosensitive material and detection method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109668530A (en) * | 2019-01-29 | 2019-04-23 | 广州中船文冲船坞有限公司 | A kind of axis and axis hole centering detection method and centering detection device |
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| CN112539713A (en) * | 2019-09-23 | 2021-03-23 | 南京理工大学 | Device and method for detecting straightness of small-caliber body pipe |
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| CN111551135A (en) * | 2020-06-30 | 2020-08-18 | 安徽理工大学 | Large component double-through-hole coaxiality measuring device based on PSD and determining method |
| CN113252313A (en) * | 2021-05-13 | 2021-08-13 | 九江精密测试技术研究所 | Device for detecting coaxiality error of laser axis and telescope collimation axis |
| CN113252313B (en) * | 2021-05-13 | 2024-05-14 | 九江精密测试技术研究所 | Device for detecting coaxiality errors of laser axis and telescope collimation axis |
| CN114377994A (en) * | 2021-12-10 | 2022-04-22 | 江苏大学 | Coaxial relation rapid detection tool based on photosensitive material and detection method thereof |
| CN114034255A (en) * | 2021-12-13 | 2022-02-11 | 东莞市启思达智能技术有限公司 | Movement detection device, method and system |
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