CN109556504A - A kind of double-sided printed-circuit board copper coating thickness measuring system - Google Patents
A kind of double-sided printed-circuit board copper coating thickness measuring system Download PDFInfo
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- CN109556504A CN109556504A CN201811474811.XA CN201811474811A CN109556504A CN 109556504 A CN109556504 A CN 109556504A CN 201811474811 A CN201811474811 A CN 201811474811A CN 109556504 A CN109556504 A CN 109556504A
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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
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring 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
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
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- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
A kind of double-sided printed-circuit board copper coating thickness measuring system, it is characterized in that, including pedestal, roller transport establishment, fine positioning mechanism for testing, video detection mechanism and shielding case, the fine positioning mechanism for testing is mounted on pedestal upper end, and the fine positioning mechanism for testing includes calibrator and the accurate positioning device that calibrator front end is arranged in；Upper calibrator and lower calibrator are respectively provided on the support baseboard for being mounted on pedestal upper end；Roller transport establishment is also equipped on pedestal between upper calibrator and lower calibrator, it is also equipped with video detection mechanism on the shielding case of roller transport establishment front end installation on the base, the lower end of roller transport establishment is also equipped with the LED illumination panel that cooperation video detection mechanism uses on pedestal.The beneficial effects of the present invention are monitoring points when detection using taking point mode to choose at random, and detected value reliability is higher；Detection efficiency is high, is convenient for industrial production and manufacturing；Noise pollution is advantageously reduced, environment is protected.
Description
Technical field
The present invention relates to circuit board copper measurement of coating thickness field more particularly to a kind of double-sided printed-circuit board copper coating thickness measuring systems
System.
Background technique
Circuit board is the plate that electronics manufacturing has the call.Plate needs to carry out at copper facing circuit board during fabrication
Reason, the thickness of copper coating influence whether circuit board in the using effect in later period, so needing to carry out copper coating thickness after circuit board
Detection.Since circuit board requirement is larger, so needing to propose that a kind of efficient circuit board copper measurement of coating thickness device is market hair
The certainty of exhibition.
Summary of the invention
The present invention provides a kind of double-sided printed-circuit board copper coating thickness measuring system.
A kind of double-sided printed-circuit board copper coating thickness measuring system, which is characterized in that including MES system and respectively with MES system
Unite be electrically connected plate video identification module, plate barcode scanning identification module, electromagnetism interference module, static elimination module, survey
Pilot two-dimensional localization module, two calibrators and data memory module, data memory module belong to MES system and are used to store,
The MES system and each module are installed on a pedestal；
It include any thickness plate constant pressure self-clamping module and probe module on the calibrator, probe module is mounted on any thickness
On the piston rod of the cylinder of plate constant pressure self-clamping module, any thickness plate constant pressure self-clamping module includes cylinder, feeling of stress
Answer device and a precise locating mechanism for test point fine positioning, pressure inductor feedback link MES system, cylinder, pressure
Inductor and precise locating mechanism electrical property MES system are simultaneously controlled by MES system；
Test point two-dimensional localization module is installed on the base, and test point two-dimensional localization module includes X-axis plate conveyor module and Y-axis
Mobile module is tested, Y-axis test mobile module is vertical with X-axis plate conveyor module, and Y-axis tests mobile module upper and lower ends difference
One calibrator is installed, the opposite horizontal plane that is parallel to is mounted in the middle part of pedestal two calibrators up and down, and X-axis plate conveyor module is flat
Row is arranged between two calibrators；The plate video identification module, plate barcode scanning identification module and calibrator are along X-axis plate
The conveyor module direction of motion is sequentially arranged on pedestal；The X-axis plate conveyor module is part hollow design, and part hollow out is set
Meter passes through X-axis plate conveyor module detection plate for being mounted on probe module on the calibrator of X-axis plate conveyor module lower end；
The electromagnetism interference module includes internal system electromagnetic shield module and exterior electromagnetic shield module, internal system
Electromagnetic shield module includes motor electromagnetic shield module and LED electromagnetic shield module；Motor electromagnetic shield module includes test point
The electromagnetic shielding mechanism of X-axis drive motor and Y-axis drive motor in two-dimensional localization module；LED electromagnetic shield module includes installation
In the electromagnetic shield module of all LED components of internal system.
Preferably, the X-axis plate conveyor module is roller transport establishment, and the roller transport establishment includes transmission support
The lower end of frame, drum assembly, X-axis drive motor and transmission shaft, the transmission support frame is mounted on support baseboard upper surface, institute
The drum assembly that transmission support frame upper end is equipped with multiple groups is stated, is also installed on the transmission support frame outside-supporting bottom plate upper surface
There is X-axis drive motor, the transmission shaft that the X-axis drive motor is mounted on transmission support frame upper end by being driven band connection is described
Every group of driving drum component is corresponded on transmission shaft equipped with a connection gear, the connection gear and the quilt on respective rollers component
Moving gear engagement.
Preferably, the static elimination module includes Xelminator, spray point and dust extraction fan, and Xelminator is put
MES system is electrically connected in acusector and dust extraction fan, and MES system controls the work of Xelminator, spray point and dust extraction fan
Make.
Preferably, the plate video identification module is CCD image-taking device, is received by MES system after CCD image-taking device
To the monnolithic case information that will test plate.
Preferably, the exterior electromagnetic shield module includes shielding case and filter.
Preferably, LED illumination panel is installed on the pedestal.
Preferably, the probe module of the calibrator is equipped with several probes
Preferably, display and operational module are also equipped on the shielding case, the display and operational module connect MES system,
Display and operational module control plate video identification module, plate barcode scanning identification module, electromagnetism interference module, electrostatic respectively and disappear
Except module, test point two-dimensional localization module, two calibrators and data memory module work.
A kind of double-sided printed-circuit board copper coating thickness measuring method, which is characterized in that the described method includes:
Leading portion send plate, and plate enters thickness measuring system from the front end of X-axis plate conveyor module；
Leading portion send plate to reach plate video identification region, and plate video identification module takes pictures to plate and passes pictorial information
It send to MES system；
Access point testing, detection module alignment, MES system select test point by the pictorial information that plate video identification module transmits
Afterwards, MES system control Y-axis test mobile module is mobile, and Y-axis tests mobile module and carries out the initial adjustment of test point Y-axis, and calibrator is with Y
Axis test mobile module is moved to predetermined position；
Prepare before test, region, that is, measurement position of plate barcode scanning identification module barcode scanning identification, X-axis plate conveyor module stops
Work, calibrator start thickness measuring；
Calibrator thickness measuring, any thickness plate constant pressure self-clamping module drive probe module fine position to move back to plate, and upper and lower two
Probe on platform calibrator connects with plate, two groups of opposite probe energization sheet material measurement thickness；
Measurement data uploads, and calibrator is electrically connected MES system, and data transfer to MES system is simultaneously saved to data storage
Module, probe reset；
Next measurement point is tested, detection module is mobile to be aligned next test point, and plate is delivered to by the work of X-axis plate conveyor module
Measurement point, calibrator thickness measuring, measurement data is uploaded to MES system and saves to data memory module after detection；
Probe resets, and the probe power-off on upper and lower two calibrators, any thickness plate constant pressure self-clamping module drives probe module
It resets；
Plate is temporary, after plate is delivered to X-axis plate conveyor module by MES system X-axis plate conveyor module after probe resets
The predetermined working area of section, waits MES system to send all-clear；
Back segment receives plate, and MES system sends all-clear, and plate is delivered to X-axis plate conveyor module by X-axis plate conveyor module
Rear end completes to receive plate operation, and system starts the detection of next plate；
In testing process, video detection and thickness test can also simultaneously parallel processing, accelerate production line production capacity.
The beneficial effects of the present invention are monitoring points when detection using taking point mode to choose at random, and detected value reliability is more
It is high；Mirror image is equipped with upper calibrator and lower calibrator simultaneously, while carrying out circuit board upper and lower end faces copper coating Thickness sensitivity, detects
It is high-efficient, it is convenient for industrial production and manufacturing；The design of shielding case and calibrator upper cylinder driving mechanism advantageously reduces noise dirt
Dye protects environment.
Detailed description of the invention
Fig. 1 is overall structure of the present invention.
Fig. 2 is that the present invention does not install shielding case structure schematic diagram.
Fig. 3 is roller transport establishment of the present invention and fine positioning mechanism for testing structural schematic diagram.
Fig. 4 is roller transport establishment of the present invention and accurate positioning device structural schematic diagram.
Fig. 5 is fine positioning mechanism for testing structural schematic diagram of the present invention.
Fig. 6 is calibrator structural schematic diagram in the present invention.
Fig. 7 is present invention probe and structural representation of air cylinder.
Fig. 8 is control flow chart of the invention.
Fig. 9 four probe method test schematic diagram.
Figure 10 current inlet system measurement thickness and slice Comparative result schematic diagram.
Contrast schematic diagram between the measured value and slice result of Figure 11 this patent.
In figure: 1- pedestal, 2- roller transport establishment, 3- calibrator, 4- shielding case, 5- is shown and operational module, 6- video
Testing agency, 7- accurate positioning device, 11- support baseboard, 21- transmission support frame, 22- drum assembly, 23-X shaft drive motor,
24- transmission shaft, the upper calibrator of 31-, calibrator under 32-, 311- upper support seat, 312-Y axis driving motor, 313- probe, 71- are fixed
Position support frame, 72- industrial camera.
Specific embodiment
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, the arts such as term " installation ", " connected ", " connection ", " fixation "
Language shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be machinery
Connection, is also possible to be electrically connected；It can be directly connected, two elements can also be can be indirectly connected through an intermediary
Internal connection.For the ordinary skill in the art, above-mentioned term can be understood in the present invention as the case may be
In concrete meaning.
The present invention will be further described with reference to the accompanying drawing.
As shown in Fig. 1 to 7, a kind of double-sided printed-circuit board copper coating thickness measuring system, which is characterized in that including pedestal 1, rolling
Cylinder transport establishment 2, fine positioning mechanism for testing, video detection mechanism 6 and shielding case 4, the fine positioning mechanism for testing are mounted on base
1 upper end of seat, the fine positioning mechanism for testing includes calibrator 3 and the accurate positioning device 7 that 3 front end of calibrator is arranged in；It is described
Calibrator 3 includes upper calibrator 31 and lower calibrator 32, and the upper calibrator 31 and lower calibrator 32 are respectively provided with and are mounted on pedestal 1
On the support baseboard 11 of upper end；1 upper end of pedestal, is also equipped with rolling on pedestal 1 between upper calibrator 31 and lower calibrator 32
Cylinder transport establishment 2, is also equipped with video detection mechanism 6, base on the shielding case 4 that 2 front end of roller transport establishment is mounted on pedestal 1
The lower end of roller transport establishment 2 is also equipped with the LED illumination panel that cooperation video detection mechanism 6 uses on seat 1.
Above-mentioned, calibrator 3 and lower calibrator 32 are micro resistance circuit board copper layer thickness meter.
Above-mentioned, upper calibrator 31 includes being mounted on the upper support seat 311 for being used to support test suite on pedestal 1 and being mounted on
Test suite on upper support seat 311.
Above-mentioned, test suite includes probe 313, cylinder and Y-axis component, and the probe 313 is mounted on the piston rod of cylinder
On, it is connect on the sliding rail for the Y-axis component that the cylinder is mounted on by sliding block and with the drive lead screw on Y-axis component.
Above-mentioned, Y-axis component further includes the Y-axis driving motor 312 for driving screw rod.
Above-mentioned, roller transport establishment 2 includes transmission support frame 21, drum assembly 22, X-axis drive motor 23 and transmission shaft
24, the lower end of the transmission support frame 21 is mounted on 11 upper surface of support baseboard, and 21 upper end of transmission support frame is equipped with
The drum assembly 22 of multiple groups, 21 outside-supporting bottom plate of the transmission support frame are also equipped with X-axis drive motor 23 on 11 upper surface,
The transmission shaft 24 that the X-axis drive motor 23 is mounted on transmission 21 upper end of support frame by being driven band connection, the transmission shaft 24
Every group of driving drum component 22 of upper correspondence be equipped with a connection gear, the connection gear with it is passive on respective rollers component 22
Gear engagement.
Above-mentioned, X-axis drive motor 23 uses anti-EMI filter motor, and the noise that when work generates is smaller.
Above-mentioned, video detection mechanism 6 is CCD image-taking device, and test point image-taking device is electrically connected controller.
It is above-mentioned, display and operational module 5 are also equipped on shielding case 4, the display and operational module 5 electricity Xing Lianjie not roll
The cylinder driving device of transport establishment 2, the driving part of calibrator 3, video detection mechanism 6 and LED illumination panel, display and manipulation
Module 5 controls roller transport establishment 2, calibrator 3, video detection mechanism 6 and the work of LED illumination panel respectively.
Above-mentioned, display and operational module 5 include display screen, controller and operational and controlled key button；It is used inside the controller
MES system is controlled.It is designed inside controller using integrated architecture, by dedicated processes module, computer division of labor processing measurement number
It is integrated according to Microsoft Excel output, convenient for the reading and observation of the information that engineer carries out.
Above-mentioned, accurate positioning device 7 includes positioning supporting frame 71 and industrial camera 72, and the industrial camera 72 is mounted on positioning
On support frame 71, industrial camera 72 is electrically connected controller, and controller carries out the location of workpiece to be detected by industrial camera 72
Positioning carries out selection and the controller of test point convenient for controller convenient for controlling the position that probe 313 is moved to selection.
A kind of double-sided printed-circuit board copper coating thickness measuring method, which is characterized in that the described method includes:
Leading portion send plate, and plate enters thickness measuring system from the front end of X-axis plate conveyor module；
Leading portion send plate to reach plate video identification region, and plate video identification module takes pictures to plate and passes pictorial information
It send to MES system；
Access point testing, detection module alignment, MES system select test point by the pictorial information that plate video identification module transmits
Afterwards, MES system control Y-axis test mobile module is mobile, and Y-axis tests mobile module and carries out the initial adjustment of test point Y-axis, and calibrator is with Y
Axis test mobile module is moved to predetermined position；
Prepare before test, region, that is, measurement position of plate barcode scanning identification module barcode scanning identification, X-axis plate conveyor module stops
Work, calibrator start thickness measuring；
Calibrator thickness measuring, any thickness plate constant pressure self-clamping module drive probe module fine position to move back to plate, and upper and lower two
Probe on platform calibrator connects with plate, two groups of opposite probe energization sheet material measurement thickness；
Measurement data uploads, and calibrator is electrically connected MES system, and data transfer to MES system is simultaneously saved to data storage
Module, probe reset；
Next measurement point is tested, detection module is mobile to be aligned next test point, and plate is delivered to by the work of X-axis plate conveyor module
Measurement point, calibrator thickness measuring, measurement data is uploaded to MES system and saves to data memory module after detection；
Probe resets, and the probe power-off on upper and lower two calibrators, any thickness plate constant pressure self-clamping module drives probe module
It resets；
Plate is temporary, after plate is delivered to X-axis plate conveyor module by MES system X-axis plate conveyor module after probe resets
The predetermined working area of section, waits MES system to send all-clear；
Back segment receives plate, and MES system sends all-clear, and plate is delivered to X-axis plate conveyor module by X-axis plate conveyor module
Rear end completes to receive plate operation, and system starts the detection of next plate
As shown in Figure 1, being equipped with shielding case 4 in this system, inside electromagnetic device is generated when shielding case 4 is operated for shielding harness
Electromagnetic noise, to reduce the noise pollution in industrial production.
313 em filtering circuits of probe are installed additional as shown in Fig. 2, Fig. 3 and Fig. 5, inside fine positioning mechanism for testing, using LCR
Filter circuit carries out the filtering of large-area circuits plate electromagnetic induction noise, from the electromagnetic interference problem solved in copper coating measurement.
Probe 313 in this system carries out Z axis driving using cylinder, realizes that probe 313 pushes measurement, avoids using motor
The electromagnetic interference generated when being driven, while cylinder pressure uses 0.2-1Mpa, realizes the clamping of any thickness circuit board constant pressure,
Solve the problems, such as the measurement that production line circuit plate thickness different band is come.
In the use of the present invention, video detection mechanism 6 enters roller transporter to from coating mechanism to from circuit board degree
Circuit board on structure 2 carries out whole video detection capture, and video detection mechanism 6 connects controller, and video detection mechanism 6 will take
As information is sent to controller, circuit board is integrally carried out convenient for controller preliminary whole detection and controller to circuit board
The acquisition of location information；Circuit board is transported by roller transport establishment 2 to calibrator 3, and calibrator 3 is before roller transport establishment 2
After the accurate positioning device 7 that the side at end is equipped with monitors circuit board, monitoring information is sent controller by accurate positioning device 7, control
Device processed combines the circuit board position information control calibrator 3 obtained from video detection mechanism 6 to sit along Y-axis in circuit board position information
Random movement takes a little in parameter, and after controller is gone a little at random, cylinder operation drives probe 313 to shift to circuit board and carry out copper coating
Thickness sensitivity, 313 detection of probe finish, and cylinder resets, and probe 313 will test information and be sent to controller, and controller passes through aobvious
Show and the display screen of operational module 5 shows detection data.
Principle: according to four probe method measuring resistance, and then thickness is determined.It is cheap and rapid, it can be used for precise measurement copper coating
Thickness, reluctantly can sounding lead tin and gold plate thickness.
Micro resistance method measures copper thickness, is that the thickness difference based on same metal has different bulk resistors, can root
Thickness is pushed away according to the changing rule of bulk resistor is counter.The advantages of this method is nondestructive measurement, and time of measuring is short, and measurement accuracy is high, is reappeared
Property is good.Reality is in microresistivity survey circuit, in order to eliminate contact resistance, all uses four probe method.Typical four probe method is surveyed
The structure for measuring bulk resistor is as shown in Figure 9.
In four probe method, the conversion relation of resistance and thickness needs to consider the distribution of electric current.Because of PCB copper thickness
Generally less than 100um, and probe spacing is greater than 2mm, for such Sheet resistance, the distribution of electric current in a thickness direction is poor
It is different, it can ignore.So generally only considering the distribution in copper foil plane when measurement, and ignore the distribution on copper thickness.
When copper foil area to be measured is much larger than region area between probe, then current distribution is ellipse；When copper foil area to be measured close to
Between probe when region area, then current distribution is irregular ellipse, generates edge effect.According to derivation as t < < s
(t is the thickness for measuring layers of copper, and s is probe spacing), bulk resistor R and metallic resistance rate ρ have following corresponding relationship:
It is theoretical as long as measuring voltage V under constant current by above-mentioned formula it is known that the electricalresistivityρ of known metal to be measured
On can calculate the thickness t of metal to be measured.But it is equidistant that precondition existing for above-mentioned formula, which is probe spacing, and is
Perfect condition, i.e. probe distance s do not have foozle；Error of the resistance measurement also without other introducings, such as from measuring circuit
Nonlinear amplification error；And do not introduce error caused by sample measurement area difference etc..Actual measurement instrument with
It measures under environment, above-mentioned measurement error exists always, therefore the ideal theoretical formula of simple application will lead to very big measurement and miss
Difference.For above situation, although current micro resistance copper thickness measuring instrument is also based on four probe method to carry out thickness measure, but
Respective algorithm model is all established in the method for THICKNESS CALCULATION.
Algorithm is the first element for influencing measurement performance, although the final precision of measurement is similarly adopted depending on hardware circuit
The precision of sample amplification, but if algorithmically mismatched with actual " resistance~thickness " curve, final measurement accuracy
It not can guarantee centainly.
As shown in Figure 10, the schematic diagram of the measurement thickness of inlet system measurement at present and slice Comparative result.Solid line in the figure
For by the copper layer thickness actual value confirmed after slice, dotted line is using obtained thickness after the measurement of micro resistance copper thickness measuring instrument
Measured value.Dot in figure is the thickness value demarcated using standard film.For D system, due to using single-point
Calibration, although operation is easier, when copper layer thickness than calibrate thickness it is bigger than normal or less than normal when, actual (real) thickness and measured value it
Between have biggish deviation；For C system, to be calibrated using two point, the deviation between measured value and actual value is lowered,
But when thickness is larger or smaller, deviation is still bigger than normal.
As illustrated algorithm used by this patent product, i.e. three point calibration method in Figure 11.After adopting this method, although needing
It to be calibrated using 3 pieces of standard films, but in gamut, the deviation between measured value and practical copper thickness can drop significantly
It is low.
The beneficial effects of the present invention are monitoring points when detection using taking point mode to choose at random, and detected value reliability is more
It is high；Mirror image is equipped with upper calibrator 31 and lower calibrator 32 simultaneously, while carrying out circuit board upper and lower end faces copper coating Thickness sensitivity,
Detection efficiency is high, is convenient for industrial production and manufacturing；The design of 3 upper cylinder driving mechanism of shielding case 4 and calibrator, advantageously reduces and makes an uproar
Sound pollution, protects environment.
The above embodiments are only used to illustrate the present invention, and not limitation of the present invention, in relation to the common of technical field
Technical staff can also make a variety of changes and modification without departing from the spirit and scope of the present invention, therefore all
Equivalent technical solution also belongs to scope of the invention, and scope of patent protection of the invention should be defined by the claims.
Claims (8)
1. a kind of double-sided printed-circuit board copper coating thickness measuring system, which is characterized in that including MES system and respectively with MES system
Plate video identification module, plate barcode scanning identification module, electromagnetism interference module, the static elimination module, test being electrically connected
Point two-dimensional localization module, two calibrators and data memory module, data memory module belong to MES system and are used to store, institute
It states MES system and each module is installed on a pedestal；
It include any thickness plate constant pressure self-clamping module and probe module on the calibrator, probe module is mounted on any thickness
On the piston rod of the cylinder of plate constant pressure self-clamping module, any thickness plate constant pressure self-clamping module includes cylinder, feeling of stress
Answer device and a precise locating mechanism for test point fine positioning, pressure inductor feedback link MES system, cylinder, pressure
Inductor and precise locating mechanism electrical property MES system are simultaneously controlled by MES system；
Test point two-dimensional localization module is installed on the base, and test point two-dimensional localization module includes X-axis plate conveyor module and Y-axis
Mobile module is tested, Y-axis test mobile module is vertical with X-axis plate conveyor module, and Y-axis tests mobile module upper and lower ends difference
One calibrator is installed, the opposite horizontal plane that is parallel to is mounted in the middle part of pedestal two calibrators up and down, and X-axis plate conveyor module is flat
Row is arranged between two calibrators；The plate video identification module, plate barcode scanning identification module and calibrator are along X-axis plate
The conveyor module direction of motion is sequentially arranged on pedestal；The X-axis plate conveyor module is part hollow design, and part hollow out is set
Meter passes through X-axis plate conveyor module detection plate for being mounted on probe module on the calibrator of X-axis plate conveyor module lower end；
The electromagnetism interference module includes internal system electromagnetic shield module and exterior electromagnetic shield module, internal system
Electromagnetic shield module includes motor electromagnetic shield module and LED electromagnetic shield module；Motor electromagnetic shield module includes test point
The electromagnetic shielding mechanism of X-axis drive motor and Y-axis drive motor in two-dimensional localization module；LED electromagnetic shield module includes installation
In the electromagnetic shield module of all LED components of internal system.
2. a kind of double-sided printed-circuit board copper coating thickness measuring system according to claim 1, which is characterized in that the X-axis
Plate conveyor module is roller transport establishment, and the roller transport establishment includes transmission support frame, drum assembly, X-axis driving horse
It reaches and transmission shaft, the lower end of the transmission support frame is mounted on support baseboard upper surface, the transmission support frame upper end installation
There is the drum assembly of multiple groups, is also equipped with X-axis drive motor, the X on the transmission support frame outside-supporting bottom plate upper surface
Shaft drive motor is mounted on the transmission shaft of transmission support frame upper end by transmission band connection, corresponds to every group of transmission on the transmission shaft
Drum assembly is equipped with a connection gear, and the connection gear is engaged with the driven gear on respective rollers component.
3. a kind of double-sided printed-circuit board copper coating thickness measuring system according to claim 1, which is characterized in that the electrostatic
Cancellation module includes Xelminator, spray point and dust extraction fan, and Xelminator, spray point and dust extraction fan electrically connect respectively
MES system is connect, MES system controls the work of Xelminator, spray point and dust extraction fan.
4. a kind of double-sided printed-circuit board copper coating thickness measuring system according to claim 1, which is characterized in that the plate
Material video identification module is CCD image-taking device, and the monnolithic case that will test plate is received by MES system after CCD image-taking device
Information.
5. a kind of double-sided printed-circuit board copper coating thickness measuring system according to claim 1, which is characterized in that the system
External electromagnetic shroud module includes shielding case and filter.
6. a kind of double-sided printed-circuit board copper coating thickness measuring system according to claim 1, which is characterized in that the pedestal
On LED illumination panel is installed.
7. a kind of double-sided printed-circuit board copper coating thickness measuring system according to claim 1, which is characterized in that the thickness measuring
The probe module of instrument is equipped with several probes.
8. a kind of double-sided printed-circuit board copper coating thickness measuring method, which is characterized in that the described method includes:
Leading portion send plate, and plate enters thickness measuring system from the front end of X-axis plate conveyor module；
Leading portion send plate to reach plate video identification region, and plate video identification module takes pictures to plate and passes pictorial information
It send to MES system；
Access point testing, detection module alignment, MES system select test point by the pictorial information that plate video identification module transmits
Afterwards, MES system control Y-axis test mobile module is mobile, and Y-axis tests mobile module and carries out the initial adjustment of test point Y-axis, and calibrator is with Y
Axis test mobile module is moved to predetermined position；
Prepare before test, region, that is, measurement position of plate barcode scanning identification module barcode scanning identification, X-axis plate conveyor module stops
Work, calibrator start thickness measuring；
Calibrator thickness measuring, any thickness plate constant pressure self-clamping module drive probe module fine position to move back to plate, and upper and lower two
Probe on platform calibrator connects with plate, two groups of opposite probe energization sheet material measurement thickness；
Measurement data uploads, and calibrator is electrically connected MES system, and data transfer to MES system is simultaneously saved to data storage
Module, probe reset；
Next measurement point is tested, detection module is mobile to be aligned next test point, and plate is delivered to by the work of X-axis plate conveyor module
Measurement point, calibrator thickness measuring, measurement data is uploaded to MES system and saves to data memory module after detection；
Probe resets, and the probe power-off on upper and lower two calibrators, any thickness plate constant pressure self-clamping module drives probe module
It resets；
Plate is temporary, after plate is delivered to X-axis plate conveyor module by MES system X-axis plate conveyor module after probe resets
The predetermined working area of section, waits MES system to send all-clear；
Back segment receives plate, and MES system sends all-clear, and plate is delivered to X-axis plate conveyor module by X-axis plate conveyor module
Rear end completes to receive plate operation, and system starts the detection of next plate.
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| CN201811474811.XA CN109556504A (en) | 2019-01-14 | 2019-01-14 | A kind of double-sided printed-circuit board copper coating thickness measuring system |
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| CN201811474811.XA CN109556504A (en) | 2019-01-14 | 2019-01-14 | A kind of double-sided printed-circuit board copper coating thickness measuring system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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