CN207676217U - Bilinear Laser synchronisation corner regulating mechanism for vision measurement - Google Patents
Bilinear Laser synchronisation corner regulating mechanism for vision measurement Download PDFInfo
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- CN207676217U CN207676217U CN201721081079.0U CN201721081079U CN207676217U CN 207676217 U CN207676217 U CN 207676217U CN 201721081079 U CN201721081079 U CN 201721081079U CN 207676217 U CN207676217 U CN 207676217U
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Abstract
Bilinear Laser synchronisation corner regulating mechanism for vision measurement belongs to the bilinear laser angle adjusting apparatus field of line-structured light vision system comprising horizontal slide rail mechanism, bottom plate, babinet shield, knob, worm screw, first gear mechanism, second gear mechanism, two laser connecting shaft clips and shield front end-plate；Babinet shield is rectangular box mechanism, and first gear mechanism includes first gear, first rotating shaft and two first gear axle beds；Second gear mechanism includes second gear, the second shaft and two second gear axle beds；Worm screw engages with two gear mechanisms, and babinet shield is connected with bottom plate, and the upper end of worm screw passes through worm screw through-hole and is coaxially connected with knob；Shield front end-plate is fixed on the open end in front of babinet shield vertically, and the lower face of bottom plate is connected with the sliding block of horizontal slide rail mechanism, and shaft corresponding with one is connected two laser connecting shaft clips respectively.The utility model has both the double effects for improving calibration efficiency and reducing calibrated error.
Description
Technical field
The utility model belongs to the bilinear laser angle adjusting apparatus field of line-structured light vision system, and in particular to
A kind of bilinear Laser synchronisation corner regulating mechanism for vision measurement.
Background technology
Vision measurement technology can be well adapted for the new standard and want that modern industry proposes workpiece configurations size detection
It asks, is a kind of contactless profile measurement means having both precision and efficiency.Line-structured light vision system is vision measurement technology
One of Typical Representative, basic principle is that spatial attitude is projected on space object to be detected using linear laser diode is complete
Known laser plane forms projection striation, and the projection striation is made to be moved along known scanning direction on a surface of an
Or rotation, then several photographs are shot by high-precision video camera respectively to different location of the aforementioned projection striation in scanning process
Piece.Then, using optical losses detection technique, the pixel coordinate of the striation characteristic point of body surface is extracted, calibration is recycled to obtain
The Constructed Lighting Vision System parameter obtained, the pixel coordinate of features described above point is projected in camera coordinate system, to obtain object
The 3D contour features in body surface face.
Structured-light system is applied to before practical measure, need by the method demarcated be respectively completed camera calibration with
Light-plane calibration, camera calibration are to obtain intrinsic parameters of the camera, and Light-plane calibration is to seek structure optical plane S
The space equation of (Structured light plane) under camera coordinate system, therefore, the space equation of structure optical plane S
Determination method and determine precision, be the important leverage link of line-structured light vision system service precision.
The method for being currently used for determining structure optical plane S is typically that a linear laser diode is used only, and by the laser
It is each attached to video camera on unified sliding rail motion platform, video camera and linear laser diode are projected and shot as a whole
Mechanism moves the sliding rail motion platform, to obtain different postures and position respectively by the unwinding direction along optical axis direction or optical axis
Correspondence laser striation photo under setting, thus to calculate and parse the space equation of structure light plane S.Hereafter, it then will complete
During calibrated line-structured light vision system is applied to workpiece configurations profile scan and identification, to ensure measurement accuracy.
However, the sliding rail motion platform for carrying video camera and a linear laser diode is accurate and expensive, each time
It moves to after new position, is both needed to the spatial attitude for settling accounts linear laser diode again and the space bit for recalculating video camera
It sets, this solution process is complicated and cumbersome, and error precision is not ideal enough.If can be fixed by video camera, and two be introduced simultaneously
A linear laser diode, and keep two linear laser diodes same according to being carried out always according to given angular speed around fixed axis respectively
Step rotation can then make the relative rotation relationship of two plus optical plane become known quantity, and then answer simplifies operation and calculates ring
Section, improves the solving precision of operation efficiency and structure optical plane S space equations, and significantly reduces equipment cost, improves vision and surveys
The stated accuracy of amount system and simplified calibration process.
For this purpose, research and development it is a and meanwhile accommodate two linear laser diodes, and can make two linear laser diodes respectively according to around
The caliberating device that fixed axis is rotated by given angle has important practical significance.
Utility model content
Two linear laser diodes can be accommodated simultaneously in order to solve existing Vision Measuring System With Structured Light Stripe not and make two
A linear laser diode respectively according to the device of rotation is synchronized by given angle around fixed axis the technical issues of, this reality
With a kind of bilinear Laser synchronisation corner regulating mechanism for vision measurement of novel offer.
The utility model technical solution adopted for solving the technical problem is as follows：
Bilinear Laser synchronisation corner regulating mechanism for vision measurement comprising horizontal slide rail mechanism, bottom plate, case
Body shield, knob, worm screw, first gear mechanism, second gear mechanism, two laser connecting shaft clips and shield front end-plate；Case
Body shield is the rectangular box mechanism collectively formed by integrally formed upper cover plate, end plate, left side wall and right side wall,
The middle part of upper cover plate is equipped with worm screw through-hole；First gear mechanism includes coaxially connected first gear and first rotating shaft, Yi Jifen
Two first gear axle beds not being connected with first rotating shaft front and rear ends；Second gear mechanism includes coaxially connected the second tooth
Wheel and the second shaft and two second gear axle beds being connected respectively with the second shaft front and rear ends；The lower end of the worm screw
The center of bottom plate is vertically fixed on by axle bed, worm screw engages with first gear mechanism and second gear mechanism, three
It collectively forms a double spur gear bars and synchronizes corner regulating device；The babinet shield is fixed on bottom plate, and the upper end of worm screw is worn
It crosses worm screw through-hole and is coaxially connected with knob；Rotary shaft through hole there are two being set on shield front end-plate；Shield front end-plate is fixed on vertically
Open end in front of babinet shield, and first rotating shaft and the second shaft are each passed through a corresponding rotary shaft through hole；Under bottom plate
End face and the sliding block of horizontal slide rail mechanism are connected；Two laser connecting shaft clips first rotating shaft corresponding with one or second respectively
Shaft is coaxially connected.
The first gear mechanism is horizontal positioned with second gear mechanism and is arranged in parallel in the both sides of worm screw.
The worm screw constitutes the curved tooth cylindrical worm gearing transmission mechanism that transmission ratio is 100, worm screw axial plane tooth with first gear
Exterior feature is concave arc, and worm gear flank profil is dome arc；The worm screw constitutes the curved tooth cylindrical worm that transmission ratio is 100 with second gear and passes
Motivation structure, worm screw axial plane flank profil are concave arc, and worm gear flank profil is dome arc.
The utility model has the beneficial effects that：The mechanism is by babinet shield and bottom plate by the synchronous corner tune of double spur gear bars
Regulating device is fixed in horizontal slide rail mechanism, to enable the laser plane that two lasers project respectively to synchronize realization pair
The transversal scanning of workpiece.
Both first gear and second gear are arranged in parallel, first gear and second gear respectively with corresponding first straight line
Two linear laser diodes of laser and second straight line laser are coaxially connected, and then keep the axis of two linear laser diodes parallel.
Worm screw is respectively curved tooth cylindrical worm gearing transmission mechanism that transmission ratio is given value, worm shaft with first gear and second gear
Face flank profil is concave arc, and worm gear flank profil is dome arc.The structure makes the angle between contact line and relative sliding velocity larger,
Therefore it is easily formed lubricating oil film, and convex-concave flank profil is meshed, flank profil normal radius of curvature is larger in contact line, contact stress
It is relatively low, thus its bearing capacity and efficiency compared with other cylindrical worm gearing transmissions be height, and so that the utility model corner
The structure of regulating mechanism is more compact, small, light-weight.
Double spur gear bars synchronize corner regulating device can make the structure optical plane S that two lasers are projected respectively1
With structure optical plane S2According to it is vertical always or it is other it is different form a variety of relative attitude angled relationships to fixed angular speed, be
Calibration operation provides new nominal data, into without needing accurate and expensive sliding rail motion platform, and the video camera enable
It is fixed, its adjustment and damage risk are reduced, and increase the accuracy of nominal data.
Two linear laser diodes can be made to obtain relatively-stationary corner speed by the corner regulating mechanism of the utility model
The space equation relativeness of degree and known relative attitude, two structure optical plane S is clear, and inverse can push away each other
It leads, therefore operation can be greatly decreased and calculate link, improve the solution essence of operation efficiency and structure optical plane S space equations
Degree, and significantly reduce equipment cost, improve the stated accuracy of vision measurement system and simplify calibration process.In addition, this practicality is new
Type corner regulating mechanism has both the double effects for improving calibration efficiency and reducing calibrated error, has higher popularization and uses valence
Value.
Description of the drawings
Fig. 1 is that stereochemical structure of the utility model for the bilinear Laser synchronisation corner regulating mechanism of vision measurement is shown
It is intended to；
Fig. 2 is the explosion assembling schematic diagram of Fig. 1；
Fig. 3 is that the double spur gear bars of the utility model synchronize corner regulating device and the assembly relation of two linear laser diodes shows
It is intended to；
Fig. 4 is application drawing of the utility model for the bilinear Laser synchronisation corner regulating mechanism of vision measurement；
Fig. 5 is the front view of Fig. 4.
Specific implementation mode
As shown in Figure 1 to Figure 3, the utility model is used for the bilinear Laser synchronisation corner regulating mechanism packet of vision measurement
Include horizontal slide rail mechanism 1, bottom plate 2, babinet shield 3, knob 4, worm screw 5, first gear mechanism 6,7, two, second gear mechanism
Laser connecting shaft clip 8 and shield front end-plate 9.Babinet shield 3 is by integrally formed upper cover plate, end plate, left side wall and the right side
The middle part of the rectangular box mechanism that side wall collectively forms, upper cover plate is equipped with worm screw through-hole 3-1.
First gear mechanism 6 include coaxially connected first gear 6-1 and first rotating shaft 6-2 and respectively with first turn
Two connected first gear axle bed 6-3 of axis 6-2 front and rear ends.
Second gear mechanism 7 include coaxially connected second gear 7-1 and the second shaft 7-2 and respectively with second turn
Two connected second gear axle bed 7-3 of axis 7-2 front and rear ends.
The lower end of worm screw 5 is vertically fixed on the center of bottom plate 2, worm screw 5 and first gear mechanism 6 and second by axle bed
Gear mechanism 7 engages, and three collectively forms a double spur gear bars and synchronizes corner regulating device.
Babinet shield 3 is fixed on bottom plate 2, and the upper end of worm screw 5 is across worm screw through-hole 3-1 and coaxial connected with knob 4.Shield
Rotary shaft through hole 9-1 there are two being set on cover front end-plate 9.Shield front end-plate 9 is fixed on the open end in 3 front of babinet shield vertically, and
First rotating shaft 6-2 and the second shaft 7-2 is each passed through a corresponding rotary shaft through hole 9-1.The lower face of bottom plate 2 and horizontal slide rail
The sliding block of mechanism 1 is connected.First rotating shaft 6-2 corresponding with one or the second shaft 7-2 are same respectively for two laser connecting shaft clips 8
Axis is connected.
First gear mechanism 6 is horizontal positioned with second gear mechanism 7 and is arranged in parallel in the both sides of worm screw 5.
Worm screw 5 constitutes the curved tooth cylindrical worm gearing transmission mechanism that transmission ratio is 100, worm screw axial plane tooth with first gear 6-1
Exterior feature is concave arc, and worm gear flank profil is dome arc；Worm screw 5 and second gear 7-1 also constitutes the curved tooth cylindrical worm that transmission ratio is 100
Transmission mechanism, worm screw axial plane flank profil are concave arc, and worm gear flank profil is dome arc.The structure makes contact line and opposite sliding speed
Angle between degree is larger, therefore is easily formed lubricating oil film, and convex-concave flank profil is meshed, flank profil equivalent curvature in contact line
Radius is larger, and contact stress is relatively low, thus its bearing capacity and efficiency are height compared with other cylindrical worm gearing transmissions, and so that
The structure of the corner regulating mechanism of the utility model is more compact, small, light-weight.
As shown in Fig. 4 to Fig. 5, when being used for the bilinear Laser synchronisation corner regulating mechanism of vision measurement, swashed with one
Light device connecting shaft clip 8 is coaxial connected with first straight line laser 10 by the front end of first rotating shaft 6-2, another laser is used in combination to connect
Axis clip 8 is coaxial connected with second straight line laser 11 by the front end of the second shaft 7-2, and adjusts separately first straight line laser
10 laser plane S1With the laser plane S of second straight line laser 112, keep this two laser planes perpendicular to one another, that is, complete this
The installation of mechanism.
The corner regulating mechanism is placed in horizontal plane, and makes 11 equal court of first straight line laser 10 and second straight line laser
To given known direction, it is separately turned on two linear laser diodes above-mentioned, you can by the structure optical plane S of the two1And knot
Structure optical plane S2On projection to scaling board or workpiece, striation extraction parsing is taken pictures and projects using video camera to come into effect
Operation.
As a structure optical plane S1With structure optical plane S2Relative attitude complete shooting after, rotate knob 4 by hand, i.e.,
It can synchronize and not change structure optical plane S1With structure optical plane S2The angular pose on scaling board or workpiece, to obtain under
The new spatial attitude relationship of one group of projection striation, to provide new nominal data for calibration operation.
Horizontal slide rail mechanism 1 is used under conditions of special by the uniform velocity or speed change movable base plate 2, to make project two
A laser plane can synchronize the transversal scanning realized to workpiece, to obtain continually changing magnanimity detection data.
Two groups of curved tooth cylindrical worm gearing transmissions that worm screw 5 collectively forms with first gear 6-1 and second gear 7-1 three respectively
Mechanism can also be set to different transmission ratios according to different requirements, entirely different to fixed angular speed to obtain, with
Meet the special detection needs of reducing workpiece.
Claims (3)
1. the bilinear Laser synchronisation corner regulating mechanism for vision measurement, which is characterized in that the mechanism includes horizontal sliding
Rail mechanism (1), bottom plate (2), babinet shield (3), knob (4), worm screw (5), first gear mechanism (6), second gear mechanism
(7), two laser connecting shaft clips (8) and shield front end-plate (9)；Babinet shield (3) is by integrally formed upper cover plate, rear end
The middle part of the rectangular box mechanism that plate, left side wall and right side wall collectively form, upper cover plate is equipped with worm screw through-hole (3-1)；
First gear mechanism (6) includes coaxially connected first gear (6-1) and first rotating shaft (6-2) and respectively with first
Two connected first gear axle beds (6-3) of shaft (6-2) front and rear ends；
Second gear mechanism (7) includes coaxially connected second gear (7-1) and the second shaft (7-2) and respectively with second
Two connected second gear axle beds (7-3) of shaft (7-2) front and rear ends；
The lower end of the worm screw (5) is vertically fixed on the center of bottom plate (2), worm screw (5) and first gear mechanism (6) by axle bed
And second gear mechanism (7) engages, three collectively forms a double spur gear bars and synchronizes corner regulating device；
The babinet shield (3) is fixed on bottom plate (2), the upper end of worm screw (5) pass through worm screw through-hole (3-1) and with knob (4)
It is coaxial to be connected；Rotary shaft through hole (9-1) there are two being set on shield front end-plate (9)；Shield front end-plate (9) is fixed on babinet shield vertically
(3) open end in front of, and first rotating shaft (6-2) and the second shaft (7-2) are each passed through a corresponding rotary shaft through hole (9-
1)；The lower face of bottom plate (2) is connected with the sliding block of horizontal slide rail mechanism (1)；Two laser connecting shaft clips (8) respectively with one
Corresponding first rotating shaft (6-2) or the second shaft (7-2) are coaxially connected.
2. being used for the bilinear Laser synchronisation corner regulating mechanism of vision measurement as described in claim 1, which is characterized in that
The first gear mechanism (6) is horizontal positioned with second gear mechanism (7) and is arranged in parallel in the both sides of worm screw (5).
3. being used for the bilinear Laser synchronisation corner regulating mechanism of vision measurement as claimed in claim 1 or 2, feature exists
In the worm screw (5) constitutes the curved tooth cylindrical worm gearing transmission mechanism that transmission ratio is 100, worm screw axial plane with first gear (6-1)
Flank profil is concave arc, and worm gear flank profil is dome arc；The worm screw (5) constitutes the curved tooth that transmission ratio is 100 with second gear (7-1)
Cylindrical worm gearing transmission mechanism, worm screw axial plane flank profil are concave arc, and worm gear flank profil is dome arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721081079.0U CN207676217U (en) | 2017-08-25 | 2017-08-25 | Bilinear Laser synchronisation corner regulating mechanism for vision measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721081079.0U CN207676217U (en) | 2017-08-25 | 2017-08-25 | Bilinear Laser synchronisation corner regulating mechanism for vision measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207676217U true CN207676217U (en) | 2018-07-31 |
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ID=62953147
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721081079.0U Expired - Fee Related CN207676217U (en) | 2017-08-25 | 2017-08-25 | Bilinear Laser synchronisation corner regulating mechanism for vision measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207676217U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110579813A (en) * | 2019-09-27 | 2019-12-17 | 华南理工大学 | Case for visual recognition instrument for foreign matters on subway platform door and installation method of case |
-
2017
- 2017-08-25 CN CN201721081079.0U patent/CN207676217U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110579813A (en) * | 2019-09-27 | 2019-12-17 | 华南理工大学 | Case for visual recognition instrument for foreign matters on subway platform door and installation method of case |
| CN110579813B (en) * | 2019-09-27 | 2024-02-02 | 华南理工大学 | Chassis for subway platform door foreign body visual identifier and mounting method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180731 Termination date: 20190825 |