CN107966450B - Battery pole piece coating defect detects separation system - Google Patents
Battery pole piece coating defect detects separation system Download PDFInfo
- Publication number
- CN107966450B CN107966450B CN201711320797.3A CN201711320797A CN107966450B CN 107966450 B CN107966450 B CN 107966450B CN 201711320797 A CN201711320797 A CN 201711320797A CN 107966450 B CN107966450 B CN 107966450B
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- Prior art keywords
- pole piece
- diversion division
- horizontal
- battery pole
- defect
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
Abstract
The present invention provides a kind of battery pole piece coating defect separation systems comprising pole piece transmission device 1, pole piece lifting device 2 and defect recognizing device.The transmission device 1 includes driving mechanism 11 and turntable 12, and the turntable 12 is for carrying the battery pole piece, and the driving mechanism 11 is for rotating the turntable 12 so that the battery pole piece reaches defect recognition position.The surface that the pole piece lifting device 2 is used to that the battery pole piece for reaching the defect recognition position to be made to lift off the turntable 12 in a non-contact manner.Also, the defect recognizing device carries out defect recognition for the upper and lower surface simultaneously to the battery pole piece for reaching the defect recognition position.
Description
Technical field
The present invention relates to sorting fields, relate more specifically to battery pole piece coating defect separation system.
Background technique
Battery is of great significance in production link as the great product of demand, quality height.Battery is in life
During production can or other accidentalia insufficient because of production technology generate some substandard products, leading to occur the reason of substandard products may wrap
It includes there are open defect, these open defects include scratch, concave point, spine etc..Battery is detected in a manner of artificial inspection
Whether qualified not only inefficiency, but also be easy because eye strain causes to judge by accident.
Machine Vision Detection can effectively improve production efficiency and industrial manufacturing level as a kind of advanced detection technique,
Complicated Detection task may be implemented in it, executes high speed real-time detection, and at low cost, easy to operate, therefore has gradually existed
There is more universal application in each branch field of industry.
Summary of the invention
The present invention provides a kind of battery pole piece coating defect separation systems comprising pole piece transmission device 1, pole piece
Lifting device 2 and defect recognizing device.The transmission device 1 includes driving mechanism 11 and turntable 12, and the turntable 12 is for holding
The battery pole piece is carried, the driving mechanism 11 is for rotating the turntable 12 so that the battery pole piece reaches defect recognition
Position.The pole piece lifting device 2 is used to make to reach in a non-contact manner the battery pole piece of the defect recognition position
Lift off the surface of the turntable 12.Also, the defect recognizing device is for simultaneously to the arrival defect recognition position
The battery pole piece upper and lower surface carry out defect recognition.
Further, the driving mechanism 11 includes the first driving assembly 111 and the second driving assembly 112.Wherein, described
First driving assembly 111 includes the first drive shaft 1111 and joint portion 1112, the joint portion 1112 and first drive shaft
1111 connect and deviate the setting of its axle center.Second driving assembly 112 includes gear 1121, the rotation axis of the gear 1121
1122 one end are fixedly connected on the gear 1121 and the other end connects the turntable 12, and the gear 1121 includes multiple wheels
Slot, the shape of the race are matched with the joint portion 1112.First driving assembly 111 and second driving assembly
112 are configured to, when first drive shaft 1111 rotation, the joint portion 1112 and the wheel flute profile on the gear 1121
At engagement, so that the gear 1121 be driven to rotate, and then rotate the turntable 12.
Further, the turntable 12 includes the through-hole 121 for carrying the battery pole piece.Point of the through-hole 121
Cloth is corresponding with the tooth socket distribution on the gear 1121, and is evenly arranged on the circumferential edges of the through-hole 121 multiple
First light source, the first light source are equipped with light diffusing sheet.
Further, the balance portion being fixedly connected with first drive shaft is set on first driving assembly 111
1113, wherein the balance portion 1113 relative to first drive shaft 1111 with one heart or eccentric setting, and during rotation
It is not in contact with the gear 1121 in second driving assembly 112.
Further, the pole piece lifting device 2 includes horizontal diversion division 22, air inlet on upper vertical diversion division 21, first
Horizontal diversion division 27 under horizontal diversion division 26, second under horizontal diversion division 24, air force portion 25, first in portion 23, second, under
Vertical diversion division 28 and air gap 29.Wherein, horizontal diversion division 22 on described first, water on the intake section 23 and described second
Flat diversion division 24 is sequentially connected in the horizontal direction；Horizontal 27 edge of diversion division under horizontal diversion division 26 and described second under described first
Horizontal direction connection；It is equipped with gas propulsive equipment inside the air force portion 25, and distinguishes water on second described in air circuit connection
Horizontal tour guide portion 26 under flat diversion division 24 and described first；Horizontal diversion division 22 on the upper vertical diversion division 21 and described first
Air circuit connection, and the shape with gradual change, to realize the shape of the horizontal diversion division from described first to the shape of the air gap 29
The smooth transition of shape；Horizontal 27 air circuit connection of diversion division under the lower vertical diversion division 28 and described second, and with gradual change
Shape, with the smooth transition of the shape of the shape of realization horizontal diversion division under described second to the air gap 29；Described first
Upper horizontal diversion division 22, horizontal diversion division 26 and the second lower level under horizontal diversion division 24, described first on described second
It is provided with air baffle in diversion division 27, for adjusting the distribution of air-flow in cross section.The air gap 29 has circular cross-section,
And its area is less than on described first horizontal diversion division 27 under horizontal diversion division 22 and described second.The upper vertical diversion division 21
Lower circumference on be evenly arranged with multiple second light sources, the second light source is equipped with light diffusing sheet.
Further, it is realized between horizontal diversion division 22 and the intake section 23 by connector 3 on described first airtight
And dismountable connection.Wherein, the connector 3 includes the first connection unit 31 and the second connection unit 32.Described first connects
Order member 31 includes link block 311 and the outwardly projecting protruding portion 312 on the surface of the link block 311.Described second
Connection unit 32 includes the first elastic component 321 and the second elastic component 322, shape in the outwardly-facing surface of first elastic component 321
The recessed portion 3211 of the interference fit of protruding portion 312 described in Cheng Youyu, and the side opposite with the recessed portion 3211 in interior lateral edge
To being formed with protruding portion 3212.Second elastic component 322 has flat on the inner sidewall for being fixed on the intake section 23
Face 3221, the round and smooth bending in that end farthest along 3212 projected direction of protruding portion of the planar portions 3221 have extended to form
Abutting part 3222.Shape is at an angle so that the abutting part 3222 is opposite between the abutting part 3222 and the planar portions 3221
It is tilted in the planar portions 3221, and the formation of the protruding portion 3212 of the abutting part 3222 and first elastic component 321
It abuts.
Further, the defect recognizing device includes first group of CCD camera, second group of CCD camera and controller, wherein
Every group includes four CCD cameras.The CCD camera is installed into four cameras in first group of CCD camera by bracket
About the vertical setting substantially symmetrical about its central axis of the battery pole piece on the horizontal plane for being parallel to the battery pole piece, and in the water
An angle of 90 degrees is wired between the adjacent CCD camera and the center of the battery pole piece in plane.Second group of CCD phase
Machine and first group of CCD camera are symmetrical arranged about the battery pole piece in the vertical direction.
Further, the controller is configured to execute following image processing process：First group of CCD camera is obtained
Four width image co-registrations of the battery pole piece taken, wherein using fR(x,y)、fG(x, y) and fB(x, y) respectively indicates red, green and blue
Brightness value under chrominance channel on pixel (x, y)；By the brightness value f under the red and blue channelR(x, y) and fB(x, y) point
Not with threshold value TRAnd TBIt is compared, f will be met simultaneouslyR(x,y)>TRAnd fB(x,y)>TBPixel brightness value f (x, y) note
It is zero；Calculate the image data F (x, y) through noise filtering=H*f (x, y), wherein the Gaussian function template that H is 5 × 5, * are
Convolution symbol；And calculate gradient value F ' (x, y), wherein F ' (x, y)=| Fx|+|Fy|, Fx=F (x+1, y)-F (x, y), Fy=
F(x,y+1)-F(x,y)。
Further, the controller is configured to, and when the gradient value F ' (x, y) is greater than preset threshold β, indicates picture
Vegetarian refreshments (x, y) is defect point.
Further, the position that the controller is configured to control the air baffle according to defect recognition result becomes
Change.
Detailed description of the invention
Fig. 1 schematically shows the driving mechanism of the transmission device of defects detection separation system according to the present invention；
Fig. 2 schematically shows the of the driving mechanism of the transmission device of defects detection separation system according to the present invention
One driving assembly；
Fig. 3 schematically shows the vertical view of the turntable of the transmission device of defects detection separation system according to the present invention
Figure；
Fig. 4 schematically shows the pole piece lifting devices of defects detection separation system according to the present invention；
Fig. 5 schematically shows the connector of defects detection separation system according to the present invention；And
Fig. 6 A and Fig. 6 B respectively schematically give the local structural graph of defects detection separation system according to the present invention.
Specific embodiment
Hereinafter, exemplary embodiment of the present invention is with reference to the accompanying drawings to detailed description.The following examples are to illustrate
Mode provide, sufficiently to convey spirit of the invention to those skilled in the art in the invention.Therefore, the present invention is unlimited
In embodiment disclosed herein.
Battery pole piece coating defect separation system of the invention include pole piece transmission device 1, pole piece lifting device 2 and
Defect recognizing device.
Transmission device 1 may include driving mechanism 11 and turntable 12, and pole piece is placed on turntable, and turntable 12 is in driving mechanism 11
Under the action of rotate so that pole piece reach suitable position to carry out defect recognition.
As illustrated in fig. 1 and 2, driving mechanism 11 includes the first driving assembly 111 and the second driving assembly 112.First driving
Component 111 includes the first drive shaft 1111 and joint portion 1112, and joint portion 1112 is connect with the first drive shaft 1111 and off-axis
Heart setting, so that joint portion 1112 surrounds the first drive shaft 1111 when the first drive shaft 1111 rotates driven by the motor
It circles.
Second driving assembly 112 includes gear 1121, and 1122 one end of rotation axis of gear 1121 is fixedly connected on gear
1121, the other end connects turntable 12 by spoke, so that rotation axis 1122 is with gear 1121 when gear 1121 is driven
It rotates and turntable is driven to circle around rotation axis.Gear 1121 includes multiple races, the shape of race and joint portion
1112 match.First driving assembly 111 and the second driving assembly 112 are configured to, and when the rotation of the first drive shaft 1111, are connect
Conjunction portion 1112 is engaged with the race formation on gear 1121, to rotate with moving gear 1121, and then rotates turntable 12.
It should be readily apparent to one skilled in the art that under this arrangement, when joint portion 1112 surrounds the first drive shaft 1111
When rotation is turned around, it could be turned to from a race of gear 1121 on next race and formation effect therewith.In other words,
Whenever the rotation of the first drive shaft 111 is turned around, it could make the distance of the second driving assembly 112 one gear of rotation.Therefore, lead to
The rotating cycle for crossing the first drive shaft 1111 of control can be controlled very precisely second driving assembly 112 and then turntable 12
Rotation distance.Meanwhile those skilled in the art are also readily appreciated that during the rotation of the first drive shaft 1111 is turned around, at least
The second driving assembly 112 is not acted on by joint portion 1112 in half the time, and this period, inner rotary table will be maintained at
On predetermined position, therefore, can be used for the identification of defect this period, thus provide defect recognition sorting continuous operation can
Energy.In the present invention, the position distribution for pole piece being arranged on turntable can be corresponding with the distribution of the tooth socket on gear 1121, so that the
One drive shaft, 1111 per revolution then has a pole piece on turntable to be in defect recognition operation.It first drive shaft and connects
The turnning circle in conjunction portion can know by any of mode, such as can be by optical mode, therefore herein not
It repeats again.
Further, in order to guarantee that the first drive shaft and joint portion smoothly can provide driving to the second driving assembly
The balance portion 1113 being fixedly connected with the first drive shaft can also be arranged in power in the first driving assembly 111.Balance portion 1113 can
With the setting concentric or eccentric relative to the first drive shaft 1111, and during rotation not and in the second driving assembly 112
Gear be in contact.
As shown in figure 3, through-hole 121 is provided on turntable 12, distribution corresponding with the tooth socket on gear 1121.It is operating
In the process, pole piece to be sorted is laid on through-hole 121.Light source, the light are evenly arranged on the circumferential edges of through-hole 121
Light diffusing sheet is additionally provided on source, so that the light that light source issues passes through light diffusing sheet equably to external exposure.
In the present invention, when pole piece is turned to defect recognition position, pole piece lifting device 2 is in a non contact fashion
Pole piece is set to be promoted to leave turntable, so that defect recognizing device can carry out defect recognition to two faces of pole piece simultaneously.By
This pole piece lifting device 2, it is convenient to omit in the prior art for making the labyrinth of pole piece turn-over, while avoiding to pole piece shape
The issuable damage at physical contact.Fig. 4 gives the schematic diagram of pole piece lifting device 2 of the invention.As shown in figure 4,
Pole piece lifting device 2 includes horizontal diversion division 22 on upper vertical diversion division 21, first, horizontal diversion division on intake section 23, second
24, horizontal diversion division 27, lower vertical diversion division 28 and air gap under horizontal diversion division 26, second under air force portion 25, first
29.Horizontal diversion division 22 on first, horizontal diversion division 24 is sequentially connected in the horizontal direction on intake section 23 and second, to constitute
The upper airways of lifting device 2；Horizontal diversion division 27 connects in the horizontal direction under horizontal diversion division 26 and second under first, thus
Constitute the lower airways of lifting device 2；Gas propulsive equipment, such as fan, and gas circuit respectively are equipped with inside air force portion 25
Horizontal tour guide portion 26 under horizontal diversion division 24 and first in connection second, to push air in 2 inside stream of pole piece lifting device
It is dynamic；Horizontal 22 air circuit connection of diversion division on upper vertical diversion division 21 and first, and the shape with gradual change, to realize from first
The smooth transition of shape of the shape of upper horizontal diversion division to air gap 29；Also, lower vertical diversion division 28 is led with the second lower level
27 air circuit connection of stream portion, and the shape with gradual change, to realize the shape of the horizontal diversion division under second to the shape of air gap 29
The smooth transition of shape.In the present invention, air gap 29 has a circular cross-section, and its area less than first on horizontal diversion division 22 and the
Horizontal diversion division 27, is arranged by this size under two so that under second horizontal diversion division 27 to air gap 29 gas circuit section by
It is tapered small, therefore air is promoted to flow to air gap with the speed being gradually increased, and vertical tour guide portion under being sprayed with maximum speed, into
Enter air gap 29, to provide maximum upward pressure；Simultaneously as the gas circuit in horizontal tour guide portion 22 is cut from air gap 29 to the first
Face is gradually increased, therefore the air flowed into from air gap 29 is promoted to flow to horizontal diversion division 22 on first with the speed being gradually reduced,
To reduce air in subsequent gas circuit with the friction loss that occurs inside lifting device, aerodynamic efficiency is improved.First
It is set in horizontal diversion division 27 under horizontal diversion division 26 and second under horizontal diversion division 24, first on upper horizontal diversion division 22, second
It is equipped with air baffle, for adjusting the distribution of air-flow in cross section.In the present invention, the position of air baffle is can to adjust
Section, to provide different air-flows in air gap, to realize different purposes.For example, when a through-hole in turntable 12
121 when going in air gap 29, and the position of air baffle, which is adjusted so that in air gap 29, forms uniformly upward air support
Power, so that the pole piece on the through-hole 121 is smoothly pulled away turntable 12；It is lacked when defect recognizing device 3 detects that pole piece exists
When falling into, then under the control of the controller, the position of air baffle changes, so that forming one in air gap 29 towards turntable
The air thrust in the center of circle, to the pole piece inwardly be blown off turntable, into waste collection case；When defect is not detected, control
The position of device control air baffle processed changes, so that forming the sky for being directed away from turntable center of circle direction in air gap 29
Gas thrust, to the pole piece be blown off turntable outward, into finished product collecting box.It further, can also be in intake section 23
Air filter screen is set at air inlet, is entered in gas circuit to avoid air plankton.
In the present invention, a circle light source is also evenly arranged in the lower circumference of upper vertical diversion division 21, on the light source
It is additionally provided with light diffusing sheet, so that the light that light source issues passes through light diffusing sheet equably to external exposure.
During defect recognition, when pulling away turntable by air under the action of pole piece is in lifting device 2, the phase of turntable 12
One on the circumferential edges of through-hole 121 lower surface for enclosing light source irradiation pole piece is answered, provides uniform illumination for the lower surface of pole piece；
Meanwhile the circle light source in the lower periphery of the upper vertical diversion division 21 of lifting device 2 is irradiated the upper surface of pole piece, is
The upper surface of pole piece provides uniform illumination.
In addition, horizontal diversion division 22 on the upper vertical diversion division 21, first of pole piece lifting device 2, on intake section 23, second
Horizontal diversion division 27 and lower vertical diversion division under horizontal diversion division 26, second under horizontal diversion division 24, air force portion 25, first
Being fixedly connected using airtight and dismountable mode between two neighboring in 28 is realized.In the present invention, one is given
Kind is for realizing this airtight and detachable connection method connector 3.
Fig. 5 shows the schematic diagram of connector of the invention, below will be with diversion division 22 horizontal on first and intake section 23
Between connector for, to illustrate the principle of connector 3 of the invention.As shown in figure 5, the connector 3 includes the first connection
Unit 31 and the second connection unit 32.First connection unit 31 is outside including link block 311 and on the surface of link block 311
Protruding portion 312 outstanding.Link block 311 can be fixedly connected with the end of diversion division 22 horizontal on first in any way, example
Such as welding, bonding are integrally formed.
Second connection unit 32 includes the first elastic component 321 and the second elastic component 322.First elastic component 321 outwardly
The recessed portion 3211 being interference fitted with protruding portion 312 is formed on surface, and in the interior lateral edge side opposite with recessed portion 3211
To being formed with protruding portion 3212.First elastic component 321 for being fixedly connected with the end of intake section 23, such as welding, bonding or
Person is integrally formed.Second elastic component 322 has the planar portions 3221 on the inner sidewall for being fixed on intake section 23.Planar portions
The round and smooth bending in 3221 that end farthest along 3212 projected direction of protruding portion has extended to form abutting part 3222.Abutting part 3222 with
Shape is at an angle so that abutting part 3222 is tilted relative to planar portions 3221 between planar portions 3221, and abutting part 3222 and first
The protruding portion 3212 of elastic component 321, which is formed, to abut.In the present invention, the elasticity of the second elastic component 322 is preferably greater than the first elasticity
The elasticity of part 321.By this connection component, so that being capable of forming between horizontal tour guide portion 22 and intake section 23 on first tight
Close connection, while there is the ability of impact force of the buffering from all directions.It should be readily apparent to one skilled in the art that this company
Fitting 3 can be used for the connection between any two adjacent component of pole piece lifting device 2.
In the present invention, defect recognizing device includes first group of CCD camera, second group of CCD camera and controller, wherein often
Group includes four CCD cameras.CCD camera is being parallel to pole by four cameras that bracket is installed into first group of CCD camera
About the vertical setting substantially symmetrical about its central axis of pole piece on the horizontal plane of piece, and adjacent camera on the horizontal plane and pole piece center it
Between be wired to an angle of 90 degrees, second group of CCD camera and first group of CCD camera are symmetrical arranged about pole piece in the vertical direction.?
In the present invention, each CCD camera is identical relative to the shooting angle of pole piece, and preferably greater than or equal to 45 degree of angles.
Illustrate that the work of defect recognizing device of the invention is former by taking the defect recognition process of pole piece upper surface as an example below
Reason.
Firstly, first group of CCD camera obtains four width images of pole piece upper surface from four direction, at the image in controller
Reason unit by known methods merges the four width image, the blending image that a pixel is A*B is obtained, wherein can be with
The brightness value under red, green and blue chrominance channel on pixel (x, y) is respectively indicated with fR (x, y), fG (x, y) and fB (x, y).
Then, by under red and blue channel brightness value fR (x, y) and fB (x, y) respectively with corresponding threshold value TR and TB
It is compared, will meet simultaneously fR (x, y)>TR and fB (x, y)>The brightness value f (x, y) of the pixel of TB is denoted as zero.Due to
In setting of the invention, background has the characteristics that its brightness value is significantly greater than pole piece reflectance lightness value, therefore passes through this
Kind mode, can simply reject background from blending image.It should be readily apparent to one skilled in the art that threshold value TR and TB can be with
Rule of thumb or experiment is to obtain.
Obtain reject background pole piece upper surface image data after, using Gaussian function eliminate image in noise at
Point, it can specifically use following equation：
F (x, y)=H*f (x, y)
Wherein, the Gaussian function template that H is 5 × 5, * are convolution symbol, and F (x, y) then indicates the image after noise filtering
Data.
Then the gradient value F ' (x, y) of F (x, y) is calculated using following equation group：
F ' (x, y)=| Fx |+| Fy |
Fx=F (x+1, y)-F (x, y)
Fy=F (x, y+1)-F (x, y)
If it find that there are F ' (x, y) be greater than threshold value beta point, then show the existing defects on this pixel, wherein threshold
Value β equally can rule of thumb or experiment is determined in advance.
Preferably, controller can be configured to work as F ' (x, y)>The quantity of the pixel of threshold value beta is greater than preset threshold K
When, just assert that the upper surface of the pole piece is unqualified.
Similarly, drawbacks described above identification process is equally applicable to the defect recognition to pole piece lower surface, therefore repeats no more.
The local structural graph of defects detection separation system according to the present invention is set forth in Fig. 6 A and Fig. 6 B, wherein Fig. 6 A
The perspective view of the control cabinet of separation system is schematically shown, Fig. 6 B gives the top view of the control cabinet.
Above description is not limitation of the present invention, and the present invention is also not limited to the example above.The art it is common
Within the essential scope of the present invention, the variations, modifications, additions or substitutions made also should belong to protection of the invention to technical staff
Range, protection scope of the present invention are subject to claims.
Claims (6)
1. a kind of battery pole piece coating defect separation system comprising pole piece transmission device (1), pole piece lifting device (2)
And defect recognizing device, it is characterised in that：
The transmission device (1) includes driving mechanism (11) and turntable (12), and the turntable (12) is for carrying the battery pole
Piece, the driving mechanism (11) is for rotating the turntable (12) so that the battery pole piece reaches defect recognition position；
The pole piece lifting device (2) is used to make to reach in a non-contact manner the battery pole piece of the defect recognition position
Lift off the surface of the turntable (12)；And
The defect recognizing device for the upper and lower surface simultaneously to the battery pole piece for reaching the defect recognition position into
Row defect recognition；
The driving mechanism (11) includes the first driving assembly (111) and the second driving assembly (112), first driving assembly
It (111) include the first drive shaft (1111) and joint portion (1112), the joint portion (1112) and first drive shaft
(1111) it connects and deviates the setting of its axle center；Also, second driving assembly (112) includes gear (1121), the gear
Rotation axis (1122) one end be fixedly connected on the gear (1121) and the other end and connect the turntable (12)；The gear
It (1121) include multiple races, the shape of the race is matched with the joint portion (1112)；And
First driving assembly (111) and second driving assembly (112) are configured to, when first drive shaft
(1111) when rotating, the joint portion (1112) is engaged with the race formation on the gear (1121), to drive the tooth
(1121) rotation is taken turns, and then rotates the turntable (12)；
The turntable (12) include for carrying the through-hole of the battery pole piece (121), the distribution of the through-hole (121) with it is described
Tooth socket distribution on gear (1121) is corresponding；And multiple first are evenly arranged on the circumferential edges of the through-hole (121)
Light source, the first light source are equipped with light diffusing sheet；
The balance portion (1113) being fixedly connected with first drive shaft is set on first driving assembly (111), wherein institute
State balance portion (1113) relative to first drive shaft (1111) with one heart or eccentric setting, and during rotation not with it is described
The gear (1121) in second driving assembly (112) is in contact；
The pole piece lifting device (2) include upper vertical diversion division (21), horizontal diversion division (22) on first, intake section (23),
Horizontal diversion division under horizontal diversion division (26), second under horizontal diversion division (24), air force portion (25), first on second
(27), lower vertical diversion division (28) and air gap (29), wherein：
Horizontal diversion division (22) on described first, on the intake section (23) and described second horizontal diversion division (24) along level side
To being sequentially connected；
Horizontal diversion division (27) connects in the horizontal direction under horizontal diversion division (26) and described second under described first；
Air force portion (25) inside is equipped with gas propulsive equipment, and distinguishes horizontal diversion division on second described in air circuit connection
(24) horizontal diversion division (26) and under described first；
Horizontal diversion division (22) air circuit connection on the upper vertical diversion division (21) and described first, and the shape with gradual change,
With the smooth transition of the shape of the shape of realization horizontal diversion division from described first to the air gap (29)；
Horizontal diversion division (27) air circuit connection under the lower vertical diversion division (28) and described second, and the shape with gradual change,
With the smooth transition of the shape of the shape of realization horizontal diversion division under described second to the air gap (29)；
Horizontal diversion division (22) on described first, horizontal diversion division under horizontal diversion division (24), described first on described second
(26) and under described second it is provided with air baffle in horizontal diversion division (27), for adjusting the distribution of air-flow in cross section；
The air gap (29) has circular cross-section, and its area is less than on described first under horizontal diversion division (22) and described second
Horizontal diversion division (27)；And
Multiple second light sources are evenly arranged in the lower circumference of the upper vertical diversion division (21), the second light source is equipped with
Light diffusing sheet.
2. battery pole piece coating defect separation system as described in claim 1, it is characterised in that：It is horizontal on described first
Airtight and dismountable connection is realized by connector (3) between diversion division (22) and the intake section (23)；Wherein,
The connector (3) includes the first connection unit (31) and the second connection unit (32)；First connection unit (31)
The outwardly projecting protruding portion (312) including link block (311) and on the surface of the link block (311)；And
Second connection unit (32) includes the first elastic component (321) and the second elastic component (322)；First elastic component
(321) recessed portion (3211) with the protruding portion (312) interference fit is formed in outwardly-facing surface, and in interior lateral edge
The direction opposite with the recessed portion (3211) is formed with protruding portion (3212)；Second elastic component (322) has for solid
The planar portions (3221) being scheduled on the inner sidewall of the intake section (23), the planar portions (3221) along the protruding portion
(3212) the round and smooth bending in that farthest end of projected direction has extended to form abutting part (3222), the abutting part (3222) with it is described
Shape is at an angle so that the abutting part (3222) tilts relative to the planar portions (3221) between planar portions (3221), and institute
Abutting part (3222) is stated to abut with the formation of the protruding portion (3212) of first elastic component (321).
3. battery pole piece coating defect separation system as claimed in claim 2, it is characterised in that：The defect recognition dress
It sets including first group of CCD camera, second group of CCD camera and controller, wherein every group includes four CCD cameras；The CCD camera
It is closed on the horizontal plane for being parallel to the battery pole piece by four cameras that bracket is installed into first group of CCD camera
In the vertical setting substantially symmetrical about its central axis of the battery pole piece, and the adjacent CCD camera on the horizontal plane and the electricity
It is wired to an angle of 90 degrees between the center of pond pole piece, second group of CCD camera and first group of CCD camera are in vertical direction
On about the battery pole piece be symmetrical arranged.
4. battery pole piece coating defect separation system as claimed in claim 3, which is characterized in that the controller is set
It is set to and executes following image processing process：
Four width image co-registrations of the battery pole piece that first group of CCD camera is obtained, wherein using fR(x,y)、fG(x,y)
And fB(x, y) respectively indicates the brightness value under red, green and blue chrominance channel on pixel (x, y)；
By the brightness value f under the red and blue channelR(x, y) and fB(x, y) respectively with threshold value TRAnd TBIt is compared, it will be same
When meet fR(x,y)>TRAnd fB(x,y)>TBThe brightness value f (x, y) of pixel be denoted as zero；
Calculate the image data F (x, y) through noise filtering=H*f (x, y), wherein the Gaussian function template that H is 5 × 5, * are volume
Product code；And
Calculate gradient value F ' (x, y), wherein F ' (x, y)=| Fx|+|Fy|, Fx=F (x+1, y)-F (x, y), Fy=F (x, y+1)-F
(x,y)。
5. battery pole piece coating defect separation system as claimed in claim 4, which is characterized in that the controller is set
It is set to, when the gradient value F ' (x, y) is greater than preset threshold β, instruction pixel (x, y) is defect point.
6. battery pole piece coating defect separation system as claimed in claim 5, which is characterized in that the controller is set
It is set to the change in location that the air baffle is controlled according to defect recognition result.
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