CN106032977B - Gas medium laser-Doppler formula internal screw thread detector - Google Patents
Gas medium laser-Doppler formula internal screw thread detector Download PDFInfo
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- CN106032977B CN106032977B CN201610236353.0A CN201610236353A CN106032977B CN 106032977 B CN106032977 B CN 106032977B CN 201610236353 A CN201610236353 A CN 201610236353A CN 106032977 B CN106032977 B CN 106032977B
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- screw thread
- internal screw
- transverse slat
- fixed
- doppler
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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
- G01B13/00—Measuring arrangements characterised by the use of fluids
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Gas medium laser-Doppler formula internal screw thread detector, V-type slideway is set, and splicing plate is set in V-type slideway leading portion, when setting inner screw sheath slides into non-touch position sensor position along V-type slideway, oscillating cylinder rotation material blocking rod blocks inner screw sheath pause, air nozzle sprays a branch of smooth air beam, it is tilted a certain angle and blows to internal screw thread tooth, reflection through internal screw thread to smooth air beam, form turbulent airflow, turbulent airflow carries the information of internal screw thread, laser doppler transmitter emission detection laser, after forming turbulent airflow, it is received by Doppler signal recipient, Doppler signal is passed to the feature of doppler signal processor analysis processing turbulent airflow through connecting cable, extract the information of internal screw thread, identify the presence or absence of internal screw thread and the depth, by carrying out pilot teaching to qualified inner screw sheath, calibration, form database, by calculating Machine control centre control detection sorting system, qualified lets off, underproof to push scraping wings to release by cylinder.
Description
Technical field
The present invention relates to a kind of machine-building, automated arm and electronic laser technical fields, and in particular to a kind of gas
Dielectric laser Doppler type internal screw thread detector.
Background technique
In thread measurement technology, it is usually all artificial detection, this method is or not internal screw thread detection, which is always a difficult point,
It only low efficiency and needs to put into huge human and material resources, and also often results in misjudgement, also there is optics and image analytical method,
However, Chang Liuyou greasy dirt and color difference after internal thread machining, so the accuracy of detection is influenced, so accurately automatic detection needs
Ask urgent, this patent proposes the apparatus and method using moving gaseouse medium detection internal screw thread.
Summary of the invention
To solve the above-mentioned problems, the purpose of the present invention is to provide a kind of inspections of gas medium laser-Doppler formula internal screw thread
Device is surveyed, swings gas by the way that V-type slideway is arranged when setting inner screw sheath slides into non-touch position sensor position along V-type slideway
Cylinder rotation material blocking rod blocks inner screw sheath pause, and air nozzle sprays a branch of smooth air beam, is tilted a certain angle and blows to internal screw thread
Tooth, the reflection through internal screw thread to smooth air beam form turbulent airflow, and turbulent airflow carries the information of internal screw thread, laser doppler
Transmitter emission detection laser is received, then by LDA signal processor after forming turbulent airflow by Doppler signal receiver
The feature of device analysis processing turbulent airflow, extracts the information of internal screw thread, the presence or absence of identification internal screw thread and the depth, by qualification
Thread bush, the non-threaded unqualified inner screw sheath with shallow thread, carry out pilot teaching, calibration, form database, are controlled by computer
Heart control carries out detection sorting.
V-type slideway is set, and V-type slideway has front support rod and back stay support to fix, and front support rod and back stay are fixed respectively
On middle transverse slat and stringer board, the inner screw sheath on V-type slideway is supported by V-type slideway, and is stopped by material blocking rod, material blocking rod and pendulum
Cylinder of taking offence connection, and oscillating cylinder is supported by middle strut II, middle strut II is fixed on middle transverse slat, and splicing plate is by preceding left branching rod branch
Before support is fixed on transverse slat, preceding transverse slat is connected with stringer board, and scraping wings is connected with cylinder, and cylinder is supported and fixed on preceding cross by front right bar
On plate.
Laser doppler transmitter is fixed on left branching rod, and left branching rod is fixed on middle transverse slat, and middle transverse slat is fixed on stringer board
On, Doppler signal receiver is fixed on middle transverse slat by middle right strut support, laser doppler transmitter and Doppler signal
Receiver is connected by connecting cable with doppler signal processor, and doppler signal processor is by control cable and calculates
Machine control centre is connected with accurate air pump, and accurate air pump is connected by tracheae with air nozzle, and air nozzle has rear left strut support solid
It is scheduled on rear transverse slat.
When inner screw sheath slides into non-touch position sensor position along V-type slideway, oscillating cylinder rotation material blocking rod is blocked
Inner screw sheath pauses, and air nozzle sprays a branch of smooth air beam, is tilted a certain angle and blows to internal screw thread tooth, through internal screw thread to steady
The reflection of air flow stream forms turbulent airflow, and turbulent airflow carries the information of internal screw thread, and laser doppler transmitter emission detection swashs
Light is received, Doppler signal is passed to Doppler signal through connecting cable after forming turbulent airflow by Doppler signal receiver
In processor, the feature of analysis processing turbulent airflow extracts the information of internal screw thread, the presence or absence of identification internal screw thread and the depth, by pair
The inner screw sheath of qualification, the non-threaded unqualified inner screw sheath with shallow thread, carry out pilot teaching, calibration, database are formed, by calculating
Machine control centre control detection sorting system, qualified lets off, underproof to push scraping wings to release by cylinder.
This patent core content
V-type slideway is set, and V-type slideway is fixed by front support rod and back stay support, and front support rod and back stay are fixed respectively
On middle transverse slat and stringer board, the inner screw sheath on V-type slideway is supported by V-type slideway, and is stopped by material blocking rod, material blocking rod and pendulum
Cylinder of taking offence connection, and oscillating cylinder is supported by middle strut II, and middle strut II is fixed on middle transverse slat, and laser doppler transmitter is solid
It is scheduled on left branching rod, left branching rod is fixed on middle transverse slat, and middle transverse slat is fixed on stringer board, and splicing plate is fixed by front left strut support
On preceding transverse slat, preceding transverse slat is connected with stringer board, and scraping wings is connected with cylinder, before cylinder is supported and fixed on by front right bar on transverse slat,
Doppler signal receiver is fixed on middle transverse slat by middle right strut support, and laser doppler transmitter and Doppler signal receive
Device is connected by connecting cable with doppler signal processor, and doppler signal processor passes through control cable and computer control
Center processed is connected with accurate air pump, and accurate air pump is connected by tracheae with air nozzle, and air nozzle is fixed on by rear left strut support
Afterwards on transverse slat, rear transverse slat is connected and fixed with stringer board, and non-touch position sensor is mounted on middle strut I, during middle strut I is mounted on
On transverse slat, when detecting, when inner screw sheath slides into the position of non-touch position sensor along V-type slideway, oscillating cylinder rotation
Material blocking rod, blocks inner screw sheath pause, and air nozzle sprays a branch of smooth air beam, is tilted a certain angle and blows to the interior of inner screw sheath
Thread, reflection and refraction through internal screw thread tooth to smooth air beam form turbulent airflow, and turbulent airflow carries the letter of internal screw thread
Breath, laser doppler transmitter emission detection laser irradiation turbulent airflow are received by Doppler signal receiver, Doppler signal warp
Connecting cable is passed in doppler signal processor, and the feature of analysis processing turbulent airflow extracts the information of internal screw thread, identifies interior spiral shell
The presence or absence of line and the depth form database, by computer controlling center by carrying out teaching, calibration to qualified inner screw sheath
Control detection sorting system, qualified lets off, underproof to push scraping wings to release by cylinder.
The effect of the technical program: internal screw thread form is measured using air stream turbulence, not by interior threaded surface greasy dirt and color difference
Influence, improve the accuracy of detection, improve detection efficiency.
Detailed description of the invention
Attached drawing 1 is structure chart of the invention, wherein it is respectively as follows: 1, air nozzle, 2, smooth air beam, 3, inner screw sheath, 4,
Non-touch position sensor, 5, middle strut I, 6, laser doppler transmitter, 7, material blocking rod, 8, oscillating cylinder, 9, middle strut II,
10, left branching rod, 11, turbulent airflow, 12, internal screw thread, 13, V-type slideway, 14, splicing plate, 15, front support rod, 16, scraping wings, 17, gas
Cylinder, 18, preceding left branching rod, 19, middle transverse slat, 20, stringer board, 21, preceding transverse slat, 22, front right bar, 23, middle right strut, 24, connecting cable,
25, doppler signal processor, 26, computer controlling center, 27, control cable, 28, accurate air pump, 29, rear transverse slat, 30, more
General Le signal receiver, 31, back stay, 32, rear left branching rod, 33, tracheae.
Specific embodiment
Below according to attached drawing 1, the illustratively embodiment of this patent.
Gas medium laser-Doppler formula internal screw thread detector, it is characterized in that: setting V-type slideway 13, V-type slideway 13 is by preceding
Strut 15 and the support of back stay 31 are fixed, and front support rod 15 and back stay 31 are separately fixed on middle transverse slat 19 and stringer board 20, V-type
Inner screw sheath 3 on slideway 13 is supported by V-type slideway 13, and is stopped by material blocking rod 7, and material blocking rod 7 is connect with oscillating cylinder 8,
And oscillating cylinder 8 is supported by middle strut II 9, middle strut II 9 is fixed on middle transverse slat 19, and splicing plate 14 is by preceding left branching rod 18
Before support is fixed on transverse slat 21, preceding transverse slat 21 is connected with stringer board 20, and scraping wings 16 is connected with cylinder 17, and cylinder 17 is by front right bar 22
Before being supported and fixed on transverse slat 21, laser doppler transmitter 6 is fixed on left branching rod 10, and left branching rod 10 is fixed on middle transverse slat 19
On, middle transverse slat 19 is fixed on stringer board 20, and Doppler signal receiver 30 is supported and fixed on middle transverse slat 19 by middle right strut 23,
Laser doppler transmitter 6 and Doppler signal receiver 30 are connected by connecting cable 24 with doppler signal processor 25
It connects, doppler signal processor 25 is connected by control cable 27 with computer controlling center 26 and accurate air pump 28, accurate gas
Pump 28 is connected by tracheae 33 with air nozzle 1, and air nozzle 1 has rear left branching rod 32 to be supported and fixed on rear transverse slat 29, rear transverse slat 29
It is connected and fixed with stringer board 20, non-touch position sensor 4 is mounted on middle strut I 5, and middle strut I5 is mounted on middle transverse slat 19.
When detecting, when inner screw sheath 3 slides into the position of non-touch position sensor 4 along V-type slideway 13, oscillating cylinder
8 rotation material blocking rods 7 block the pause of inner screw sheath 3, and air nozzle 1 sprays a branch of smooth air beam 2, is tilted a certain angle and blows to interior spiral shell
The internal screw thread tooth of line set 3, the reflection through internal screw thread to smooth air beam 2 form turbulent airflow 11, and turbulent airflow 11 carries internal screw thread
12 information, laser doppler transmitter emits 6 exploring laser lights, after forming turbulent airflow 11, by Doppler signal receiver
30 receive, and Doppler signal is passed in doppler signal processor 25 through connecting cable 24, the feature of analysis processing turbulent airflow 11,
The information of internal screw thread 12, the presence or absence of identification internal screw thread 12 and the depth are extracted, by qualified inner screw sheath, non-threaded and shallow spiral shell
The unqualified inner screw sheath of line carries out pilot teaching, calibration, forms database, controls detection sorting system by computer controlling center 26
System, qualified lets off, underproof to push scraping wings 16 to release by cylinder 17.
Claims (1)
1. gas medium laser-Doppler formula internal screw thread detector, it is characterized in that: setting V-type slideway (13), V-type slideway is by preceding branch
Bar (15) and back stay (31) support are fixed, and front support rod (15) and back stay (31) are separately fixed at middle transverse slat (19) and stringer board
(20) on, the inner screw sheath (3) on V-type slideway (13) is supported by V-type slideway (13), and is stopped by material blocking rod (7), material blocking rod
(7) it is connect with oscillating cylinder (8), and oscillating cylinder (8) is supported by middle strut II (9), middle strut II (9) is fixed on middle transverse slat
(19) on, laser doppler transmitter (6) is fixed on left branching rod (10), and left branching rod (10) is fixed on middle transverse slat (19), in
Transverse slat (19) is fixed on stringer board (20), and splicing plate (14) is supported and fixed on preceding transverse slat (21) by preceding left branching rod (18), preceding cross
Plate (21) is connected with stringer board (20), and scraping wings (16) is connected with cylinder (17), and cylinder (17) is supported and fixed on by front right bar (22)
On preceding transverse slat (21), Doppler signal receiver (30) is supported and fixed on middle transverse slat (19) by middle right strut (23), Doppler
Laser emitter (6) and Doppler signal receiver (30) are connected by connecting cable (24) with doppler signal processor (25)
It connects, doppler signal processor (25) passes through control cable (27) and computer controlling center (26) and accurate air pump (28) phase
Even, accurate air pump (28) is connected by tracheae (33) with air nozzle (1), and air nozzle (1) is supported and fixed on by rear left branching rod (32)
Afterwards on transverse slat (29), rear transverse slat (29) is connected and fixed with stringer board (20), and non-touch position sensor (4) is mounted on middle strut I (5)
On, middle strut I (5) is mounted on middle transverse slat (19), and when detecting, inner screw sheath (3) slides into non-contact along V-type slideway (13)
When the position of position sensor (4), inner screw sheath (3) pause, air nozzle (1) spray are blocked in oscillating cylinder (8) rotation material blocking rod (7)
A branch of smooth air beam (2) out, is tilted a certain angle the internal screw thread tooth for blowing to inner screw sheath (3), through internal screw thread tooth to steady gas
The reflection and refraction of a fluid stream (2) are formed turbulent airflow (11), and turbulent airflow (11) carries the information of internal screw thread (12), and Doppler swashs
Optical transmitting set (6) emission detection laser irradiation turbulent airflow (11) is received by Doppler signal receiver (30), Doppler signal warp
Connecting cable (24) is passed in doppler signal processor (25), and the feature of analysis processing turbulent airflow extracts internal screw thread (12)
Information, the presence or absence of identification internal screw thread (12) and the depth, by carrying out teaching to qualified inner screw sheath, demarcating, formation database,
Detection sorting system is controlled by computer controlling center (26), qualified lets off, underproof to push scraping wings by cylinder (17)
(16) it releases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610236353.0A CN106032977B (en) | 2016-04-13 | 2016-04-13 | Gas medium laser-Doppler formula internal screw thread detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610236353.0A CN106032977B (en) | 2016-04-13 | 2016-04-13 | Gas medium laser-Doppler formula internal screw thread detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106032977A CN106032977A (en) | 2016-10-19 |
| CN106032977B true CN106032977B (en) | 2019-09-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610236353.0A Expired - Fee Related CN106032977B (en) | 2016-04-13 | 2016-04-13 | Gas medium laser-Doppler formula internal screw thread detector |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205664791U (en) * | 2016-04-13 | 2016-10-26 | 河北工业大学 | Thread detection ware in gas medium laser doppler formula |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2929913B2 (en) * | 1993-03-17 | 1999-08-03 | 日産自動車株式会社 | Screw hole measuring device |
| DE10119669A1 (en) * | 2001-04-20 | 2002-10-31 | Micas Ag | Testing or detecting system for test objects with threads detects Doppler shift as radar sensor transmission and reception antenna is moved along thread |
| CN101109626A (en) * | 2007-07-23 | 2008-01-23 | 天津勤美达工业有限公司 | Method for detecting thread |
| EP2194358B1 (en) * | 2008-12-05 | 2011-06-01 | Tenaris Connections Aktiengesellschaft | Measurement method and device for thread parameters |
| CN104864788A (en) * | 2015-06-04 | 2015-08-26 | 宁波创世轴业有限公司 | Automatic detection device for thread |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205664791U (en) * | 2016-04-13 | 2016-10-26 | 河北工业大学 | Thread detection ware in gas medium laser doppler formula |
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