CN107449372A - Ball-screw nut comprehensive parameters detection means and method based on laser triangulation - Google Patents
Ball-screw nut comprehensive parameters detection means and method based on laser triangulation Download PDFInfo
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- CN107449372A CN107449372A CN201710766231.7A CN201710766231A CN107449372A CN 107449372 A CN107449372 A CN 107449372A CN 201710766231 A CN201710766231 A CN 201710766231A CN 107449372 A CN107449372 A CN 107449372A
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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
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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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
- G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
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- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a kind of ball-screw nut comprehensive parameters detection means based on laser triangulation, including cast iron lathe bed and the X-axis linear motion platform, grating scale and the V block bases that are arranged on lathe bed；Gantry is provided with the X-axis linear motion platform, two vertical moving units are provided with described gantry, described two vertical moving units are the lead screw guide rails auxiliary drive gears driven by servomotor, raceway profile measurement component in nut is provided with the working plate of first vertical moving unit, the cylindrical measurement assembly of nut is provided with the working plate of the second vertical moving unit；The grating scale is used for the lateral displacement for measuring gantry；V blocks are provided with the V blocks base, nut to be measured and two standard length bars are set on the V blocks.By the device can direct measurement go out the key parameter and outside diameter of raceway in nut, have the advantages that precision height, efficiency high, automaticity are high.
Description
Technical field
The present invention relates to field of measuring technique, particularly a kind of ball-screw nut comprehensive parameters inspection based on laser triangulation
Survey device and method.
Background technology
At present, rolling ball screw pair screw nut, on its raceway profile, typically using indirect method or is connect due to its unique structure
Touch sensor measures, and indirect method is that the type face of the detection machining tool emery wheel before raceway processing in nut is suitable to choosing
Emery wheel, grind away part is tried with the emery wheel, obtained exemplar is cut along axis, then projected to observation raceway section on giant-screen
Profile, if meeting to require, the standard handling tool using the emery wheel as the type raceway, this method needs incision nut to cause brokenly
Bad part to be measured, and human factor is very big, measurement result poor repeatability；Contact type measurement is measured with contourgraph, and probe is deep
Entering nut interior to creep along raceway, contourgraph can obtain the raceway type face of amplified signal, and this method requires very high to reference for installation,
And the influence of lead angle is not accounted for, error is larger, and efficiency is low.On its external diameter, typically with miking, precision is not
It is high and be not carried out automating.
In summary, special comprehensive parameters detection means is there is no at this stage, and existing detection method can not obtain nut
The particularly relevant parameter of interior raceway.
The content of the invention
It is an object of the invention to provide a kind of ball-screw nut comprehensive parameters detection means based on laser triangulation,
To realize that on-line automaticization detects, efficiency and precision is improved.
The technical solution for realizing the object of the invention is：A kind of ball-screw nut comprehensive parameters based on laser triangulation
Detection means, including cast iron lathe bed and the X-axis linear motion platform, grating scale and the V block bases that are arranged on lathe bed, X-axis straight line
One end of motion platform sets V block bases, and the medial surface of cast iron lathe bed sets grating scale；
Gantry is provided with the X-axis linear motion platform, the first vertical moving unit and are provided with described gantry
Two vertical moving units, first vertical moving unit and the second vertical moving unit are all that the leading screw of servomotor driving is led
Rail auxiliary drive gear；Pass through raceway profile in vertical transition plate and nut on first working plate of first vertical moving unit
Measurement assembly is fixedly connected with, and raceway profile measurement component is located at the inside at gantry in nut；
Raceway profile measurement component includes manual translation platform, sensor frock, prism, first laser three in the nut
Angle transducer and horizontal pinboard；The manual translation platform is centrally mounted on vertical transition plate, and the prism and first swashs
Light triangulation sensor is arranged in sensor frock, and the sensor frock is arranged on manual translation platform by horizontal pinboard
On.
It is provided with second working plate of second vertical moving unit outside cylindrical first measurement assembly of nut and nut
The second component of circle；Cylindrical first measurement assembly of nut includes second laser triangulation sensor, amortisseur bar, latch segment, locking
Screw, handwheel, miniature guide rail be secondary, miniature support base, miniature lead screw pair and miniature working plate.The second laser triangulation sensor
On miniature working plate；The latch segment is arranged on miniature working plate sidepiece；The amortisseur bar is arranged on the second working plate
On；The lock-screw can withstand amortisseur bar so as to realize locking by latch segment；The handwheel is arranged on miniature lead screw pair
Shaft end；The miniature lead screw pair shaft end is fixed on miniature support base；The miniature working plate is arranged on the spiral shell of miniature lead screw pair
In the plane of the sliding block composition of female seat and miniature guide rail pair.The structure of cylindrical first measurement assembly of nut and nut cylindrical the
The structure of one measurement assembly is completely the same and is arranged symmetrically along nut normal section.
V blocks are provided with the V blocks base, nut, the first standard length bar and the second mark to be measured are set gradually on the V blocks
Quasi- length bar.
The manual translation platform is used for the position for adjusting first laser triangulation sensor, and optimum position is incident laser light
Reach the radial direction lowest part of nut to be measured after prism reflects, this ensure that what is measured is the normal direction section shape of nut to be measured
Profile.
First vertical moving unit be used for adjusting nut in raceway profile measurement component height, in order to first swash
Light triangulation sensor stretches into the nut of measurement different size.
Second vertical moving unit is used for cylindrical first measurement assembly of adjusting nut and cylindrical second component of nut
Highly, it is therefore an objective to find nut, the first standard length bar and the second standard length bar to be measured respectively apart from the cylindrical first measurement group of nut
Part and the nearest position of cylindrical second component of nut, cylindrical first measurement assembly of nut and nut cylindrical second in the position
The distance between hot spot of sensor of component is exactly the diameter of nut to be measured, the first standard length bar and the second standard length bar.
The diameter of the first standard length bar and the second standard length bar is known, and effect is that compensation V blocks clamping band is come
Error.
The handwheel drives miniature lead screw pair, and miniature working plate can move along the direction of the secondary arrangement of miniature guide rail, so as to
Second laser triangulation sensor on miniature working plate can move along the direction of the secondary arrangement of miniature guide rail, realize phase
Change for nut distance to be measured, instrument just measure for the outside diameter of different size nut.
When second laser triangulation sensor is adjusted to relative to nut distance to be measured in range ability, lock-screw is used
Amortisseur bar is withstood by latch segment and realizes locking, the second working plate of prevention second laser triangulation sensor when being moved along Z axis produces
The displacement of raw Y-direction.
A kind of detection method based on said apparatus, comprises the following steps：
Step 1, nut to be measured and two standard length bars be positioned on V blocks, open the magnetic switch of V blocks；
Step 2, the servomotor of X-axis linear motion platform are powered, and band driven portal is overall to move to first laser three along X-axis
Angle transducer gauge head is stretched into nut to be measured, the position of first laser triangulation sensor is now adjusted using manual translation platform, instead
Feedback is that the reading value of sensor controller is maximum, locks manual translation platform；
Step 3, X-axis linear motion platform band driven portal retreat to first laser triangulation sensor gauge head and leave spiral shell to be measured
Mother, it is ready；
Step 4, X-axis linear motion platform band driven portal move to nut, are arranged in raceway profile in the nut on gantry
The gauge head of measurement assembly gos deep into the height value that nut interior obtains profile, and the grating scale for being arranged in lathe bed obtains positions of the X to motion
Move, the data that both are obtained import in software the profile parameters that can obtain raceway in nut；
Step 5, when the cylindrical measurement assembly of the nut being arranged on gantry sensor hot spot reach nut to be measured when, second
Vertical moving unit drives the cylindrical measurement assembly of nut to be moved along Z axis, find the cylindrical maximum of nut and with two standards below
Length bar measurement result, which compares, can obtain outer diameter of a circle.
Compared with prior art, its remarkable advantage is the present invention：1) non-contact measurement that the measurement apparatus uses is stable
Property is good, speed is fast, accuracy is high；The nut of a collection of same specification is detected suitable for factory, only need to adjust a manual translation platform,
Remaining process is all automation, and can accurately measure the key parameter and external diameter in raceway type face in nut, so as to count
Calculate remaining parameter；2) method of the invention mainly utilizes laser measurement displacement, and sensor reading is imported in existing software
Row calculates analysis, and measurement is convenient and precision is very high, and repeatability is very well.
Brief description of the drawings
Fig. 1 is the overall construction drawing of the ball-screw nut comprehensive parameters detection means based on laser triangulation.
Fig. 2 is the view in the YOZ directions of the ball-screw nut comprehensive parameters detection means based on laser triangulation.
Fig. 3 is raceway profile measurement assembly assumption diagram in nut.
Fig. 4 is the method for testing flow chart of the present invention.
Embodiment
With reference to accompanying drawing, a kind of ball-screw nut comprehensive parameters detection means based on laser triangulation of the invention, including
Cast iron lathe bed 1 and X-axis linear motion platform 2, grating scale 3 and the V blocks base 4 being arranged on lathe bed, X-axis linear motion platform 2
One end V blocks base 4 is set, the medial surface of cast iron lathe bed 1 sets grating scale 3；
Gantry 5 is provided with the X-axis linear motion platform 2, the first vertical moving unit 6 is provided with described gantry 5
With the second vertical moving unit 7, the vertical moving unit 7 of the first vertical moving unit 6 and second is all servomotor driving
Lead screw guide rails auxiliary drive gear；First working plate 8 of first vertical moving unit 6 passes through vertical transition plate 9-1 and spiral shell
Raceway profile measurement component 9 is fixedly connected with mother, and raceway profile measurement component 9 is located at the inside at gantry 5 in nut；
In the nut raceway profile measurement component 9 include manual translation platform 9-2, sensor frock 9-3, prism 9-4,
First laser triangulation sensor 9-5 and horizontal pinboard 9-6；The manual translation platform 9-2 is centrally mounted at vertical transition plate 9-1
On, prism 9-4 and first laser the triangulation sensor 9-5 is arranged on sensor frock 9-3, the sensor frock 9-
3 are arranged on manual translation platform 9-2 by horizontal pinboard 9-6.
The both sides symmetrical arrangement identical nut cylindrical of second working plate 10 of second vertical moving unit 7
One measurement assembly 11-1 and nut cylindrical second component 11-2, the cylindrical first measurement assembly 11-1 of nut include second laser
It is triangulation sensor 12, amortisseur bar 17, latch segment 18, lock-screw 19, handwheel 20, miniature guide rail pair 21, miniature support base 22, micro-
Type lead screw pair 23 and miniature working plate 24；The second laser triangulation sensor 12 is arranged on miniature working plate 24；The lock
Tight block 18 is arranged on the miniature sidepiece of working plate 24；The amortisseur bar 17 is arranged on the second working plate 10；The lock-screw 19
Amortisseur bar 17 can be withstood by latch segment 18 so as to realize locking；The handwheel 20 is arranged on the shaft end of miniature lead screw pair 23；Institute
The miniature shaft end of lead screw pair 23 is stated to be fixed on miniature support base 22；The miniature working plate 24 is arranged on the spiral shell of miniature lead screw pair 23
In the plane of the sliding block of female seat and miniature guide rail pair 21 composition, the structure and nut of the cylindrical second measurement assembly 11-2 of nut
Cylindrical first measurement assembly 11-1 is arranged symmetrically along nut normal section.
V blocks 13 are provided with the V blocks base 4, nut 14 to be measured, the first standard length bar are set gradually on the V blocks 13
15 and the second standard length bar 16.
Manual translation platform 9-2 is used for the position for adjusting first laser triangulation sensor 9-5, manual translation platform 9-2 optimum bits
The radial direction lowest part for nut 14 to be measured of putting that to be incident laser light reach after prism 9-4 reflections.
A kind of detection method based on above-mentioned detection device, comprises the following steps：
Step 1, nut 14 to be measured, the first standard length bar 15 and the second standard length bar 16 be positioned on V blocks 13, open V
The magnetic switch of block 13；
Step 2, the servomotor of X-axis linear motion platform 2 are powered, and band driven portal 5 is overall to move to first laser along X-axis
Triangulation sensor 9-5 gauge heads are stretched into nut 14 to be measured, now adjust first laser triangulation sensor using manual translation platform 9-2
9-5 position, feedback are that the reading value of sensor controller is maximum, locking manual translation platform 9-2；
Step 3, X-axis linear motion platform 2 are retreated to first laser triangulation sensor 9-5 gauge heads to leave and treated with driven portal 5
Nut 14 is surveyed, it is ready；
Step 4, X-axis linear motion platform 2 move with driven portal 5 to nut 14 to be measured, are arranged in the nut on gantry 5
The gauge head of raceway profile measurement component 9 gos deep into the height value that the inside of nut 14 obtains profile, and the grating scale 3 for being arranged in lathe bed obtains
For X to the displacement of motion, the data that both are obtained, which import existing simulation software, can obtain the profile parameters of raceway in nut；
Step 5, as the cylindrical first measurement assembly 11-1 of the nut being arranged on gantry 5 and cylindrical second measurement assembly of nut
When 11-2 sensor hot spot reaches nut 14 to be measured, the second vertical moving unit 7 drives the cylindrical measurement group of above-mentioned two nut
Part moves along Z axis, finds the cylindrical maximum of nut and is compared with the first standard length bar 15 and the measurement result of the second standard length bar 16
Outer diameter of a circle can be obtained.
Obtaining outer diameter of a circle method is：
Assuming that during nut outside diameter measuring component movement to nut to be measured, the reading value of two laser triangulation sensors is x1With
x2；During nut outside diameter measuring component movement to the first standard length bar, the reading value of two laser triangulation sensors is x3And x4；Spiral shell
During female outside diameter measuring component movement to the second standard length bar, the reading value of two laser triangulation sensors is x5And x6；Assuming that two
Distance is H between sensor emission mouth, then H=x3+x4+D1 1, wherein D1 1It is due to that D behind tilt alpha angle is installed1In the projection of Y-axis,H=x simultaneously5+x6+D2 1, wherein D2 1It is due to that D behind tilt alpha angle is installed2In the projection of Y-axis,
Mounting inclination angle α can be obtained using identity relation, then the outer diameter of a circle D of nut to be measured0=(H-x1-x2)·cosα。
The present invention measurement apparatus use non-contact measurement stability it is good, speed is fast, accuracy is high；Suitable for factory
The nut of a collection of same specification is detected, only need to adjust a manual translation platform, remaining process is all automation, and can accurately survey
The key parameter and external diameter in raceway type face in nut are measured, so as to calculate remaining parameter.
It is described in more detail below.
A kind of lathe bed, gantry and the V blocks base of the ball-screw nut comprehensive parameters detection means based on laser triangulation are all
For casting, the motor cavity weldment of two vertical moving units, ball-screw guideway mounting surface needs to be ground, the second vertical fortune
Moving cell is arranged on the side at gantry, need to ensure side and positive perpendicularity.
The external diameter difference of two standard length bars in ball-screw nut comprehensive parameters detection means based on laser triangulation
Within 10mm, the external diameter value of nut to be measured is between the external diameter value of two standard length bars, it is assumed that nut outside diameter measuring component is transported
When moving to nut to be measured, the reading value of two laser triangulation sensors is x1And x2；Nut outside diameter measuring component movement to first mark
During quasi- length bar, the reading value of two laser triangulation sensors is x3And x4；Nut outside diameter measuring component movement is to the second standard length bar
When, the reading value of two laser triangulation sensors is x5And x6；Assuming that distance is H between two sensor emission mouths, then H=50+
x3+x4+D1 1, wherein D1 1It is due to that D behind tilt alpha angle is installed1In the projection of Y-axis,H=50+x simultaneously5+x6+D2 1,
Wherein D2 1It is due to that D behind tilt alpha angle is installed2In the projection of Y-axis,Installation can be obtained using identity relation to tilt
Angle α, then the outer diameter of a circle D of nut to be measured0=(H-50-x1-x2)·cosα。
In ball-screw nut comprehensive parameters detection means based on laser triangulation grating scale obtain X to displacement data and
The height value that first laser triangulation sensor obtains Z-direction is imported in MATLAB softwares, can fit the profile of raceway in nut.
Further detailed description is done to the present invention with reference to embodiment.
Embodiment
The interior raceway type face parameter of certain ball nut is measured, according to the reading value of first laser sensor controller
(0.006,0.01 ... ... 21.028) with the reading value (- 1.832, -1.833 ... -4.862) of grating ruler reading head, by this two
Column data is imported in MATLAB, can be calculated raceway profile parameters, as a result as follows：Left center coordinate of arc (3.655 ,-
1.051), right center coordinate of arc (3.389, -1.013), left arc radius are 3.3886, and the right circular arc center of circle is 3.3827, rolling
Pearl central coordinate of circle is (3.459, -1.413)；
The outside diameter of above-mentioned ball nut is measured, when the sensor hot spot of the cylindrical measurement assembly of nut reaches nut to be measured,
Second laser sensor reading x1=1.451 and the 3rd laser sensor reading x2=3.259, when the sensing of the cylindrical measurement assembly of nut
Device hot spot is arrived separately at when the first standard round bar and the second standard round bar, and second laser sensor reading is respectively x3=0.832
And x4=1.868, the 3rd laser sensor reading is respectively x5=0.213 and x6=0.475, wherein the first standard round bar diameter D1
=72, the second standard round bar diameter D2=74, sensor emission mouth distance H=175, measure the first standard round bar diameter
Second standard round bar diameterMounting inclination angle degree α=1.53 ° are obtained,
Then ball nut outside diameter D0=70.
From the foregoing, it will be observed that the device of the present invention can detect interior raceway type face and the outside diameter of ball nut, the degree of accuracy is high,
Measurement data is true and reliable.
Claims (6)
1. a kind of ball-screw nut comprehensive parameters detection means based on laser triangulation, it is characterised in that including cast iron lathe bed
[1] and the X-axis linear motion platform [2], grating scale [3] and the V blocks base [4] that are arranged on lathe bed, X-axis linear motion platform
[2] one end sets V blocks base [4], and the medial surface of cast iron lathe bed [1] sets grating scale [3]；
Gantry [5] is provided with the X-axis linear motion platform [2], the first vertical moving unit is provided with the gantry [5]
[6] and the second vertical moving unit [7], first vertical moving unit [6] and the second vertical moving unit [7] are all servos
Motor-driven lead screw guide rails auxiliary drive gear；The first working plate [8] of first vertical moving unit [6] is by vertically turning
Fishplate bar [9-1] is fixedly connected with raceway profile measurement component [9] in nut, and raceway profile measurement component [9] is located at gantry in nut
[5] inside；
Raceway profile measurement component [9] includes manual translation platform [9-2], sensor frock [9-3], prism in the nut
[9-4], first laser triangulation sensor [9-5] and horizontal pinboard [9-6]；The manual translation platform [9-2] is centrally mounted at
On vertical transition plate [9-1], the prism [9-4] and first laser triangulation sensor [9-5] are arranged on sensor frock [9-
3] on, the sensor frock [9-3] is arranged on manual translation platform [9-2] by horizontal pinboard [9-6].
2. the ball-screw nut comprehensive parameters detection means according to claim 1 based on laser triangulation, its feature exist
In the both sides symmetrical arrangement identical nut cylindrical of the second working plate [10] of second vertical moving unit [7]
One measurement assembly [11-1] and cylindrical second component [11-2] of nut, cylindrical first measurement assembly [11-1] of nut include the
Dual-laser triangulation sensor [12], amortisseur bar [17], latch segment [18], lock-screw [19], handwheel [20], miniature guide rail pair
[21], miniature support base [22], miniature lead screw pair [23] and miniature working plate [24]；The second laser triangulation sensor [12]
On miniature working plate [24]；The latch segment [18] is arranged on miniature working plate [24] sidepiece；The amortisseur bar [17]
On the second working plate [10]；The lock-screw [19] can withstand amortisseur bar [17] so as to realize by latch segment [18]
Locking；The handwheel [20] is arranged on the shaft end of miniature lead screw pair [23]；Miniature lead screw pair [23] shaft end is fixed on miniature
On support base [22]；The miniature working plate [24] is installed in the nut seat and miniature guide rail secondary [21] of miniature lead screw pair [23]
In the plane of sliding block composition, structure and cylindrical first measurement assembly of nut of cylindrical second measurement assembly [11-2] of nut
[11-1] is arranged symmetrically along nut normal section.
3. the ball-screw nut comprehensive parameters detection means according to claim 1 based on laser triangulation, its feature exist
In being provided with V blocks [13] on the V blocks base [4], nut to be measured [14], the first standard volume set gradually on the V blocks [13]
Rod [15] and the second standard length bar [16].
4. the ball-screw nut comprehensive parameters detection means according to claim 1 based on laser triangulation, its feature exist
In manual translation platform [9-2] is used for the position for adjusting first laser triangulation sensor [9-5], manual translation platform [9-2] optimum bit
The radial direction lowest part for nut to be measured [14] of putting that to be incident laser light reach after prism [9-4] reflection.
5. a kind of detection method based on detection means described in claim 1, it is characterised in that comprise the following steps：
Step 1, nut to be measured [14], the first standard length bar [15] and the second standard length bar [16] be positioned on V blocks [13], beaten
Drive the magnetic switch of V blocks [13]；
Step 2, the servomotor of X-axis linear motion platform [2] are powered, and band driven portal [5] is overall to move to first laser along X-axis
Triangulation sensor [9-5] gauge head is stretched into nut to be measured [14], now adjusts first laser triangle using manual translation platform [9-2]
The position of sensor [9-5], feedback are that the reading value of sensor controller is maximum, locking manual translation platform [9-2]；
Step 3, X-axis linear motion platform [2] band driven portal [5] are retreated to first laser triangulation sensor [9-5] gauge head and left
Nut [14] to be measured is ready；
Step 4, X-axis linear motion platform [2] band driven portal [5] move to nut to be measured [14], the spiral shell being arranged on gantry [5]
The gauge head of raceway profile measurement component [9] gos deep into inside nut [14] obtaining the height value of profile in mother, is arranged in the light of lathe bed
Grid chi [3] obtains displacements of the X to motion, and the data that both are obtained, which import existing simulation software, can obtain raceway in nut
Profile parameters；
Step 5, when cylindrical first measurement assembly [11-1] of the nut being arranged on gantry [5] and cylindrical second measurement assembly of nut
When the sensor hot spot of [11-2] reaches nut [14] to be measured, the second vertical moving unit [7] drives above-mentioned two nut cylindrical
Measurement assembly is moved along Z axis, is found the cylindrical maximum of nut and is surveyed with the first standard length bar [15] and the second standard length bar [16]
Amount result, which compares, can obtain outer diameter of a circle.
6. detection method according to claim 5, it is characterised in that step 5 obtains outer diameter of a circle method and is：
Assuming that during nut outside diameter measuring component movement to nut to be measured, the reading value of two laser triangulation sensors is x1And x2；Spiral shell
During female outside diameter measuring component movement to the first standard length bar, the reading value of two laser triangulation sensors is x3And x4；Nut external diameter
When measurement assembly moves to the second standard length bar, the reading value of two laser triangulation sensors is x5And x6；Assuming that two sensors
Distance is H between emission port, then H=x3+x4+D1 1, wherein D1 1It is due to that D behind tilt alpha angle is installed1In the projection of Y-axis,H=x simultaneously5+x6+D2 1, wherein D2 1It is due to that D behind tilt alpha angle is installed2In the projection of Y-axis,
Mounting inclination angle α can be obtained using identity relation, then the outer diameter of a circle D of nut to be measured0=(H-x1-x2)·cosα。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710766231.7A CN107449372B (en) | 2017-08-30 | 2017-08-30 | Laser triangle-based ball screw nut comprehensive parameter detection device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710766231.7A CN107449372B (en) | 2017-08-30 | 2017-08-30 | Laser triangle-based ball screw nut comprehensive parameter detection device and method |
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| CN107449372B CN107449372B (en) | 2023-07-18 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108592795A (en) * | 2018-06-06 | 2018-09-28 | 中国计量科学研究院 | A kind of thread parameter measurement device based on spectral confocal sensor |
| CN108871229A (en) * | 2018-06-11 | 2018-11-23 | 南京理工大学 | A kind of measurement method of ball nut spiral interior rollaway nest curved surface and outer diameter |
| CN109655409A (en) * | 2019-02-22 | 2019-04-19 | 常熟理工学院 | Recycle the feed screw nut self-locking performance imaging detection device of lead screw |
| CN117781905A (en) * | 2024-01-02 | 2024-03-29 | 上海交通大学 | Roller diameter error measuring device suitable for screw pair transmission |
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