CN105785257A - Flying needle test machine correction method - Google Patents
Flying needle test machine correction method Download PDFInfo
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- CN105785257A CN105785257A CN201610227720.0A CN201610227720A CN105785257A CN 105785257 A CN105785257 A CN 105785257A CN 201610227720 A CN201610227720 A CN 201610227720A CN 105785257 A CN105785257 A CN 105785257A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
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Abstract
The present invention provides a flying needle test machine correction method. The flying needle test machine comprises a first test shaft, a second test shaft, a third test shaft and a fourth test shaft. Each test shaft is provided with one probe and one CCD camera corresponding to the probe, and the offset between the point of each probe and the center of each corresponding CCD camera and the total stroke between the probe at the right side and the probe at the inverse side in the X direction are calculated according to the correction method. According to the correction method, the offset between the point of each probe and the center of each corresponding CCD camera and the total stroke between the probe at the right side and the probe at the inverse side in the X direction are calculated are rapidly and accurately obtained. The flying needle test machine correction method employs simple and effective steps and realizes the rapid needle correction of test shafts in the condition of ensuring the correction precision of the needle.
Description
Technical field
The present invention relates to a kind of printed circuit board (PCB) test equipment to pin bearing calibration, particularly to the bearing calibration of a kind of flying probe tester.
Background technology
Multiaxis flying probe tester is made up of four completely self-contained mobile test pins, carry out three-dimensional motion at detected PCB two sides (2, front, 2 probes of probe reverse side) and touch tested point under software control, electrical measurement board is by the voltage certain to testing needle applying, electric current, obtain different test signals, thus judging the break-make situation of pcb board network to be measured.
Flying probe tester (test probe) requires test axle to have at high speed in test process, in high precision, feature that test scope is wide.The precision of flying probe tester test depends primarily on the precision of para-position, and owing to the test point of some pcb board is not completely rounded or square, this just brings very big difficulty to flying probe tester para-position.
Flying probe tester is before reality is tested, first test software needs to choose positive and negative each two loci, then the cross target needing the CCD camera below each probe is directed at the center of loci, but there is certain position offset in CCD camera and probe, although when mechanical assembly, a side-play amount given tacit consent to is had between CCD camera and probe, but still there is certain error with actual side-play amount in the side-play amount of this acquiescence, and pcb board test point is smaller, test point is apart from closer, this error is enough to have influence on probe acupuncture treatment precision, very possible bundle does not live test point thus cause and survey by mistake, therefore, needs carry out pin is corrected.
Summary of the invention
It is an object of the invention to provide the simple and effective step of a burst of employing, realize the bearing calibration of the flying probe tester of the Fast Correction of test axle when ensureing pin correction accuracy.
The present invention provides the bearing calibration of a kind of flying probe tester, this flying probe tester is provided with the first test axle, second test axle, 3rd test axle, and the 4th test axle, wherein, first test axle is provided with the first probe and the first CCD camera, second test axle is provided with the second probe and the second CCD camera, 3rd test axle is provided with the 3rd probe and the 3rd CCD camera, 4th test axle is provided with the 4th probe and the 4th CCD camera, wherein, first probe and the second probe are the front test probe on pcb board to be measured, 3rd probe and the 4th probe are the reverse side test probe on pcb board to be measured, this bearing calibration comprises the steps:
The first step: take a pcb board to be measured with multiple copper facing hole, choose a copper facing hole on this pcb board；
Second step: mobile first test axle, obtains the center actual machine coordinate relative to described copper facing hole of the first CCD camera；Center according to the 3rd CCD camera, relative to the theoretical mechanical coordinate of this copper facing hole reverse side, the position of fine setting the 3rd CCD camera, obtains the actual machine coordinate in this copper facing hole relatively, center of the 3rd CCD camera；
3rd step: the 3rd CCD camera translation distance Δ L in the X direction, then the first probe of the first test axle moves in the focal length of the 3rd CCD camera of the 3rd test axle, then the position of fine setting the first test axle, obtains the actual machine coordinate at the relative 3rd CCD camera center of needle point of the first probe；Calculate the side-play amount between the needle point of the first probe and the center of the first CCD camera；
4th step: mobile second test axle, obtains the actual machine coordinate in the relatively described copper facing hole, center of this second CCD camera；Then the first probe of the second test axle moves in the focal length of the 3rd CCD camera of the 3rd test axle, and then the position of fine setting the second test axle, obtains the actual machine coordinate at the relative 3rd CCD camera center of needle point of the second probe；Calculate the side-play amount between the needle point of the second probe and the center of the second CCD camera and the first probe and the second probe total kilometres in the X direction；
5th step: the first CCD camera of the first test axle moves to the front of the 3rd CCD camera of the 3rd test axle, utilize same method, calculate the side-play amount between needle point and the 4th CCD camera center of the side-play amount between needle point and the 3rd CCD camera center of the 3rd probe, the 4th probe and the 3rd probe and the 4th probe total kilometres in the X direction.
According to above-mentioned bearing calibration, obtain the side-play amount between needle point and the center of corresponding CCD camera of each probe of flying probe tester fast and accurately, and the front probe X-axis total kilometres of flying probe tester and reverse side probe X-axis total kilometres, this method takes simple and effective step, realizes the quick of test axle when ensureing pin correction accuracy and pin is corrected.
Accompanying drawing explanation
Fig. 1 is the partial structurtes schematic diagram of flying probe tester of the present invention；
Fig. 2 is the needle point of the first probe of flying probe tester of the present invention structural representation in the focal length of the 3rd CCD camera.
Detailed description of the invention
The present invention provides the error calibration method of a kind of flying probe tester, flying probe tester is to install by the motor-driven probe that can independently quickly move on X-Y axle, utilize probe to contact with the copper facing hole of the pcb board being fixed on the machine in the controlled movement of Z-direction, and carry out the equipment of electric measurement.
It is illustrated in figure 1 the partial structurtes schematic diagram of flying probe tester, this flying probe tester is provided with 4 test axles, it is respectively as follows: the first test axle 10, second and tests axle (not shown), the 3rd test axle 30 and the 4th test axle (not shown), wherein, first test axle 10 is provided with the first probe 11 and the first CCD camera 12, and the first CCD camera 12 is in order to shoot motion path and the coordinate of the first probe 11 on the first test axle 10 loci on pcb board to be measured (printed circuit board (PCB))；Equally, the second test axle is provided with the second probe and the second CCD camera, and the 3rd test axle 30 is provided with the 3rd probe 31 and the 3rd CCD camera 32, and the 4th test axle is provided with the 4th probe and the 4th CCD camera.Wherein, the first probe 11 and the second probe are the front test probe on pcb board to be measured, and the 3rd probe and the 4th probe are the reverse side test probe on pcb board to be measured.
The error calibration method of flying probe tester of the present invention, comprises the steps:
The first step: taking a pcb board to be measured with multiple copper facing hole, choose a copper facing hole on this pcb board, this copper facing hole is positioned at the right of pcb board to be measured.
Second step: mobile first test axle, obtains the center actual machine coordinate relative to described copper facing hole of the first CCD camera；Center according to the 3rd CCD camera, relative to the theoretical mechanical coordinate of this copper facing hole reverse side, the position of fine setting the 3rd CCD camera, obtains the actual machine coordinate in this copper facing hole relatively, center of the 3rd CCD camera.
Described second step comprises the following specific steps that:
Step B1: manually mobile first test axle 10, makes the cross pinwheel of the first CCD camera 12 be directed at the center in this front, copper facing hole, obtains the actual machine coordinate (CCD1.x, CCD1.y) at the now center of the first CCD camera 12.
Step B2: test axle and the 3rd test axle position relationship in this flying probe tester according to first, test computed in software in flying probe tester goes out the center theoretical mechanical coordinate (SolderLInil-CCD1.x, CCD1.y) to this copper facing hole reverse side of the 3rd CCD camera 32 of the 3rd test axle 30.
3rd CCD camera 32 of the step B3: the three test axle 30 is automatically moved to the reverse side in this copper facing hole.
Step B4: the position of the 3rd CCD camera 32 is finely tuned, makes the cross pinwheel of the 3rd CCD camera 32 be directed at the center of this copper facing hole reverse side, obtains the actual machine coordinate (CCD3.x, CCD3.y) at the center of the 3rd CCD camera 32.
3rd step: the 3rd CCD camera 32 translation distance Δ L in the X direction, then the first probe of the first test axle moves in the focal length of the 3rd CCD camera of the 3rd test axle, then the position of fine setting the first test axle, obtains the actual machine coordinate at the relative 3rd CCD camera center of needle point of the first probe；Calculate the side-play amount between the needle point of the first probe 11 and the center of the first CCD camera 12.
Described 3rd step comprises the following specific steps that:
The 3rd CCD camera 32 translation distance Δ L (to the right) in the X direction of the step C1: the three test axle 30, the test computed in software of flying probe tester goes out the needle point coordinate position (CCD1.x+ Δ L-Tip1CCDinit.x, CCD1.y-Tip1CCDinit.y) to the 3rd CCD camera 32 center of the first probe 11.
First probe 11 of the step C2: the first test axle 10 is automatically moved to the dead ahead of the 3rd CCD camera 32 of the 3rd test axle 30, as shown in Figure 1.
Step C3: manually move forward, makes the first probe 11 of the first test axle 10 in the focal length of the 3rd the 3rd CCD camera 32 testing axle 30, as shown in Figure 2.
Step C4: manual fine-tuning first tests the position of axle 10, make the needle point of the first probe 11 of cross pinwheel alignment the first test axle 10 of the 3rd CCD camera 32 of the 3rd test axle 30, obtain the needle point actual machine coordinate (Tip1.x of now the first probe 11, Tip1.y), the first tester 10 back to zero.
Step C5: the side-play amount (Tip1CCD.x that the distance translated in the X direction according to the actual machine coordinate at the center of the first CCD camera 12, the 3rd CCD camera and the actual machine coordinate of the needle point of the first probe 11 calculate between the needle point of the first probe 11 and the center of the first CCD camera 12, Tip1CCD.y), wherein, Tip1CCD.x=| | Tip1.x-CCD1.x |-Δ L |, Tip1CCD.y=| Tip1.y-CCD1.y |.
4th step: mobile second test axle, obtains the actual machine coordinate in the relatively described copper facing hole, center of this second CCD camera；Then the first probe of the second test axle moves in the focal length of the 3rd CCD camera of the 3rd test axle, and then the position of fine setting the second test axle, obtains the actual machine coordinate at the relative 3rd CCD camera center of needle point of the second probe；Calculate the side-play amount between the needle point of the second probe and the center of the second CCD camera and the first probe and the second probe total kilometres in the X direction.
Described 4th step comprises the following specific steps that:
Second CCD camera of the step D1: the second test axle is automatically moved to the front in this copper facing hole, and now the center of the second CCD camera is test computed in software theoretical coordinate value (CompLInil-CCD1.x, CCD1.y) out to the coordinate in this front, copper facing hole.
Step D2: the position of the second the second CCD camera testing axle is finely tuned, makes the cross pinwheel of the second CCD camera be directed at the center in this copper facing hole, obtain the actual machine coordinate (CCD2.x, CCD2.y) at now the second CCD camera center.
Step D3: test computed in software goes out the needle point coordinate position (CCD2.x+ Δ L-Tip2CCDinit.x, CCD2.y-Tip2CCDinit.y) to the center of the 3rd the 3rd CCD camera testing axle of the second probe of the second test axle.
The needle point of the step D4: the second probe is automatically moved to the dead ahead of the 3rd CCD camera of the 3rd test axle；Then, the needle point of the second probe is manually moved forward in the focal length of the 3rd the 3rd CCD camera testing axle.
Step D5: manual fine-tuning second tests the position of axle, the cross pinwheel making the 3rd CCD camera 32 of the 3rd test axle is directed at the needle point of the second probe, obtain the actual machine coordinate (Tip2.x, Tip2.y) of the needle point of now the second probe, the second test axle back to zero.
Step D6: the actual machine coordinate according to the center of the second CCD camera, the distance that 3rd CCD camera translates in the X direction, and second the actual machine coordinate of needle point of probe calculate the side-play amount (Tip2CCD.x between the needle point of the second probe and the center of the second CCD camera, Tip2CCD.y), and calculate the first probe 11 and the second probe (between the probe of front) total kilometres CompL in the X direction, wherein, Tip2CCD.x=| | Tip2.x-CCD2.x |-Δ L |, Tip2CCD.y=| Tip2.y-CCD2.y |, CompL=Tip1.x+Tip2.x.
5th step: the first CCD camera of the first test axle moves to the front of the 3rd CCD camera of the 3rd test axle, utilize same method, calculate the side-play amount between needle point and the 4th CCD camera center of the side-play amount between needle point and the 3rd CCD camera center of the 3rd probe, the 4th probe and the 3rd probe and the 4th probe total kilometres in the X direction.
nullThe content of described 5th step is: the 3rd CCD camera center is at the supercentral actual machine coordinate (CCD3.x of described copper facing hole reverse side，CCD3.y)、4th CCD camera center is supercentral actual machine coordinate (CCD4.x in described copper facing hole，CCD4.y)、Actual machine coordinate (the Tip3.x at the cross drone center of relative first CCD camera of needle point of the 3rd probe，Tip3.y)、And the 4th actual machine coordinate (Tip4.x at cross drone center of relative first CCD camera of needle point of probe，Tip4.y)，Side-play amount (Tip3CCD.x between needle point and the 3rd CCD camera center of the 3rd probe，Tip3CCD.y)、Side-play amount (Tip4CCD.x between needle point and the 4th CCD camera center of the 4th probe，Tip4CCD.y)、And the 3rd probe and the 4th probe (between reverse side probe) total kilometres SolderL in the X direction，Wherein，Tip3CCD.x=| | Tip3.x-CCD3.x |-Δ L |，Tip3CCD.y=| Tip3.y-CCD3.y |，Tip4CCD.x=| | Tip4.x-CCD4.x |-Δ L |，Tip4CCD.y=| Tip4.y-CCD4.y |，SolderL=Tip3.x+Tip4.x.
Described 5th step comprises the steps:
First CCD camera of the step E1: the first test axle is automatically moved to the dead ahead of the 3rd CCD camera of the 3rd test axle, first, the needle point of test computed in software the 3rd probe in the flying probe tester coordinate position at the first the first CCD camera center testing axle is (CCD1.x+ Δ L-Tip3CCDinit.x, CCD1.y-Tip3CCDinit.y)；Then, 3rd probe of the 3rd test axle is automatically moved to the dead ahead of the first CCD camera of the first test axle, manually the 3rd probe is placed in the focal length of the first CCD camera of the first test axle, manual fine-tuning the 3rd tests the position of axle again, make the needle point of cross pinwheel alignment the 3rd probe of the first CCD camera, obtain the actual coordinate (Tip3.x of the needle point of now the 3rd probe, Tip3.y), 3rd test axle back to zero, calculate the side-play amount (Tip3CCD.x between needle point and the center of the 3rd CCD camera of the 3rd probe, Tip3CCD.y), Tip3CCD.x=| | Tip3.x-CCD3.x |-Δ L |, Tip3CCD.y=| Tip3.y-CCD3.y |.
Step E2: mobile 4th test axle, at the center of the 4th CCD camera under being directed at described copper facing hole reverse side center condition, obtains the actual machine coordinate at the center of the 4th CCD camera；Then the 4th probe of the 4th test axle is moved in the focal length of the first the first CCD camera testing axle, the then position of fine setting the 4th test axle, make the needle point of center alignment the 4th probe of the first CCD camera, obtain the actual machine coordinate of the needle point of the 4th probe；According to the side-play amount calculated between needle point and the center of the 4th CCD camera of the 4th probe, and the 3rd probe and the 4th probe total kilometres in the X direction.
Described step E1 comprises the steps:
First CCD camera of the step E11: the first test axle is automatically moved to the dead ahead of the 3rd CCD camera of the 3rd test axle, the needle point of the 3rd probe coordinate position at the first the first CCD camera center testing axle is (CCD1.x+ Δ L-Tip3CCDinit.x, CCD1.y-Tip3CCDinit.y)
3rd probe of the step E12: the three test axle is automatically moved to the dead ahead of the first CCD camera of the first test axle.
Step E13: manually the 3rd probe is placed in the focal length of the first CCD camera of the first test axle.
Step E14: manual fine-tuning the 3rd tests the position of axle, makes the needle point of cross pinwheel alignment the 3rd probe of the first CCD camera, obtains the actual coordinate (Tip3.x, Tip3.y) of the now needle point of the 3rd probe, the 3rd test axle back to zero.
Step E15: calculate the side-play amount (Tip3CCD.x, Tip3CCD.y) between needle point and the center of the 3rd CCD camera of the 3rd probe, Tip3CCD.x=| | Tip3.x-CCD3.x |-Δ L |, Tip3CCD.y=| Tip3.y-CCD3.y |.
Described step E2 comprises the steps:
4th CCD camera of the step E21: the four test axle is automatically moved to the reverse side in described copper facing hole, and the center of the 3rd CCD camera is by test computed in software theoretical coordinate value (SolderLInil-CCD3.x, CCD3.y) out at this copper-plated coordinate.
Step E22: the position of fine setting the 4th test axle, makes the center of the 4th CCD camera be directed at the center of this copper facing hole reverse side, obtains the center actual machine coordinate (CCD4.x, CCD4.y) in described copper facing hole of now the 4th CCD camera.
Step E23: the needle point of test computed in software the 4th probe is at the coordinate position (CCD4.x+ Δ L-Tip4CCDinit.x, CCD4.y-Tip4CCDinit.y) at the first the first CCD camera center testing axle.
Step E24: the four probe is automatically moved to the dead ahead of the first CCD camera, is then manually placed on by the 4th probe in the focal length of the first CCD camera of the first test axle.
Step E25: manual fine-tuning the 4th tests the position of axle, makes the needle point of cross pinwheel alignment the 4th probe of the first CCD camera, obtains the actual machine coordinate (Tip4.x, Tip4.y) of the now needle point of the 4th probe, the 4th test axle back to zero.
Step E26: calculate the side-play amount (Tip4CCD.x, Tip4CCD.y) between needle point and the center of the 4th CCD camera of the 4th probe, Tip4CCD.x=| | Tip4.x-CCD4.x |-Δ L |, Tip4CCD.y=| Tip4.y-CCD4.y |；Calculate the 3rd probe and the 4th probe (between reverse side probe) total kilometres SolderL in the X direction, SolderL=Tip3.x+Tip4.x.
According to above-mentioned bearing calibration, obtain the side-play amount between needle point and the center of corresponding CCD camera of each probe of flying probe tester fast and accurately, and the front probe X-axis total kilometres of flying probe tester and reverse side probe X-axis total kilometres, this method takes simple and effective step, realizes the quick of test axle when ensureing pin correction accuracy and pin is corrected.
The preferred embodiment of the present invention described in detail above; but the present invention is not limited to the detail in above-mentioned embodiment; in the technology concept of the present invention, it is possible to technical scheme is carried out multiple equivalents, these equivalents belong to protection scope of the present invention.
Claims (10)
1. the bearing calibration of a flying probe tester, this flying probe tester is provided with the first test axle, second test axle, 3rd test axle, and the 4th test axle, wherein, first test axle is provided with the first probe and the first CCD camera, second test axle is provided with the second probe and the second CCD camera, 3rd test axle is provided with the 3rd probe and the 3rd CCD camera, 4th test axle is provided with the 4th probe and the 4th CCD camera, wherein, first probe and the second probe are the front test probe on pcb board to be measured, 3rd probe and the 4th probe are the reverse side test probe on pcb board to be measured, it is characterized in that, this bearing calibration comprises the steps:
The first step: take a pcb board to be measured with multiple copper facing hole, choose a copper facing hole on this pcb board；
Second step: mobile first test axle, obtains the center actual machine coordinate relative to described copper facing hole of the first CCD camera；Center according to the 3rd CCD camera, relative to the theoretical mechanical coordinate of this copper facing hole reverse side, the position of fine setting the 3rd CCD camera, obtains the actual machine coordinate in this copper facing hole relatively, center of the 3rd CCD camera；
3rd step: the 3rd CCD camera translation distance Δ L in the X direction, then the first probe of the first test axle moves in the focal length of the 3rd CCD camera of the 3rd test axle, then the position of fine setting the first test axle, obtains the actual machine coordinate at the relative 3rd CCD camera center of needle point of the first probe；Calculate the side-play amount between the needle point of the first probe and the center of the first CCD camera；
4th step: mobile second test axle, obtains the actual machine coordinate in the relatively described copper facing hole, center of this second CCD camera；Then the first probe of the second test axle moves in the focal length of the 3rd CCD camera of the 3rd test axle, and then the position of fine setting the second test axle, obtains the actual machine coordinate at the relative 3rd CCD camera center of needle point of the second probe；Calculate the side-play amount between the needle point of the second probe and the center of the second CCD camera and the first probe and the second probe total kilometres in the X direction；
5th step: the first CCD camera of the first test axle moves to the front of the 3rd CCD camera of the 3rd test axle, utilize same method, calculate the side-play amount between needle point and the 4th CCD camera center of the side-play amount between needle point and the 3rd CCD camera center of the 3rd probe, the 4th probe and the 3rd probe and the 4th probe total kilometres in the X direction.
2. the bearing calibration of flying probe tester according to claim 1, it is characterised in that: described copper facing hole is positioned at the right of pcb board to be measured.
3. the bearing calibration of flying probe tester according to claim 1, it is characterised in that: the translation distance Δ L to the right in the X direction of the 3rd CCD camera in described 3rd step.
4. the bearing calibration according to the arbitrary described flying probe tester of claim 1-3, it is characterised in that: described second step comprises the following specific steps that:
Step B1: mobile first test axle, makes the center of the first CCD camera be directed at the center in this front, copper facing hole, obtains the actual machine coordinate (CCD1.x, CCD1.y) at the center of now the first CCD camera；
Step B2: test axle and the 3rd test axle position relationship in this flying probe tester according to first, test computed in software in flying probe tester goes out the center theoretical mechanical coordinate (SolderLInil-CCD1.x, CCD1.y) to this copper facing hole reverse side of the 3rd CCD camera of the 3rd test axle；
3rd CCD camera of the step B3: the three test axle moves to the reverse side in this copper facing hole；
Step B4: the position of the 3rd CCD camera is finely tuned, makes the center of the 3rd CCD camera be directed at the center of this copper facing hole reverse side, obtains the actual machine coordinate (CCD3.x, CCD3.y) at the center of the 3rd CCD camera.
5. the bearing calibration according to the arbitrary described flying probe tester of claim 1-3, it is characterised in that: described 3rd step comprises the following specific steps that:
The 3rd CCD camera translation distance Δ L in the X direction of the step C1: the three test axle, the test computed in software of flying probe tester goes out the needle point coordinate position (CCD1.x+ Δ L-Tip1CCDinit.x, CCD1.y-Tip1CCDinit.y) to the 3rd CCD camera center of the first probe；
First probe of the step C2: the first test axle moves to the front of the 3rd CCD camera of the 3rd test axle；
First probe of the step C3: the first test axle is in the focal length of the 3rd the 3rd CCD camera testing axle；
Step C4: the position of fine setting the first test axle, make the needle point of the first probe of center alignment the first test axle of the 3rd CCD camera of the 3rd test axle, obtain needle point actual machine coordinate (Tip1.x, Tip1.y) of now the first probe, first tester's back to zero；
Step C5: calculate the side-play amount (Tip1CCD.x between the needle point of the first probe and the center of the first CCD camera, Tip1CCD.y), wherein, Tip1CCD.x=| | Tip1.x-CCD1.x |-Δ L |, Tip1CCD.y=| Tip1.y-CCD1.y |.
6. the bearing calibration according to the arbitrary described flying probe tester of claim 1-3, it is characterised in that: described 4th step comprises the following specific steps that:
Second CCD camera of the step D1: the second test axle moves to the front in this copper facing hole, and now the center of the second CCD camera is test computed in software theoretical coordinate value (CompLInil-CCD1.x, CCD1.y) out to the coordinate in this front, copper facing hole；
Step D2: the position of the second the second CCD camera testing axle is finely tuned, makes the center of the second CCD camera be directed at the center in this copper facing hole, obtain the actual machine coordinate (CCD2.x, CCD2.y) at now the second CCD camera center；
Step D3: test computed in software goes out the needle point coordinate position (CCD2.x+ Δ L-Tip2CCDinit.x, CCD2.y-Tip2CCDinit.y) to the center of the 3rd the 3rd CCD camera testing axle of the second probe of the second test axle；
The needle point of the step D4: the second probe moves to the front of the 3rd CCD camera of the 3rd test axle；Then, the needle point of the second probe is moved forward in the focal length of the 3rd the 3rd CCD camera testing axle；
Step D5: the position of fine setting the second test axle, makes the center of the 3rd CCD camera of the 3rd test axle be directed at the needle point of the second probe, obtains the actual machine coordinate (Tip2.x, Tip2.y) of the needle point of now the second probe, the second test axle back to zero；
Step D6: calculate the side-play amount (Tip2CCD.x between the needle point of the second probe and the center of the second CCD camera, and the first probe 11 and the second probe (between the probe of front) total kilometres CompL in the X direction Tip2CCD.y), wherein, Tip2CCD.x=| | Tip2.x-CCD2.x |-Δ L |, Tip2CCD.y=| Tip2.y-CCD2.y |, CompL=Tip1.x+Tip2.x.
null7. the bearing calibration according to the arbitrary described flying probe tester of claim 1-3，It is characterized in that: described 5th step comprises the following specific steps that: the 3rd CCD camera center is at the supercentral actual machine coordinate (CCD3.x of described copper facing hole reverse side，CCD3.y)、4th CCD camera center is supercentral actual machine coordinate (CCD4.x in described copper facing hole，CCD4.y)、Actual machine coordinate (the Tip3.x at the center of relative first CCD camera of needle point of the 3rd probe，Tip3.y)、And the 4th actual machine coordinate (Tip4.x at center of relative first CCD camera of needle point of probe，Tip4.y)，Side-play amount (Tip3CCD.x between needle point and the 3rd CCD camera center of the 3rd probe，Tip3CCD.y)、Side-play amount (Tip4CCD.x between needle point and the 4th CCD camera center of the 4th probe，Tip4CCD.y)、And the 3rd probe and the 4th probe total kilometres SolderL in the X direction，Wherein，Tip3CCD.x=| | Tip3.x-CCD3.x |-Δ L |，Tip3CCD.y=| Tip3.y-CCD3.y |，Tip4CCD.x=| | Tip4.x-CCD4.x |-Δ L |，Tip4CCD.y=| Tip4.y-CCD4.y |，SolderL=Tip3.x+Tip4.x.
8. the bearing calibration according to the arbitrary described flying probe tester of claim 1-3, it is characterised in that: described 5th step comprises the following specific steps that:
First CCD camera of the step E1: the first test axle moves to the front of the 3rd CCD camera of the 3rd test axle, first, the needle point of test computed in software the 3rd probe in the flying probe tester coordinate position at the first the first CCD camera center testing axle is (CCD1.x+ Δ L-Tip3CCDinit.x, CCD1.y-Tip3CCDinit.y)；Then, 3rd probe of the 3rd test axle moves to the dead ahead of the first CCD camera of the first test axle, 3rd probe is placed in the focal length of the first CCD camera of the first test axle, finely tune the position of the 3rd test axle again, make the needle point of center alignment the 3rd probe of the first CCD camera, obtain the actual coordinate (Tip3.x, Tip3.y) of the now needle point of the 3rd probe, the 3rd test axle back to zero；Calculate the side-play amount (Tip3CCD.x, Tip3CCD.y) between needle point and the center of the 3rd CCD camera of the 3rd probe, Tip3CCD.x=| | Tip3.x-CCD3.x |-Δ L |, Tip3CCD.y=| Tip3.y-CCD3.y |；
Step E2: mobile 4th test axle, at the center of the 4th CCD camera under being directed at described copper facing hole reverse side center condition, obtains the actual machine coordinate at the center of the 4th CCD camera；Then the 4th probe of the 4th test axle is moved in the focal length of the first the first CCD camera testing axle, the then position of fine setting the 4th test axle, make the needle point of center alignment the 4th probe of the first CCD camera, obtain the actual machine coordinate of the needle point of the 4th probe；Root calculates the side-play amount between needle point and the center of the 4th CCD camera of the 4th probe and the 3rd probe and the 4th probe total kilometres in the X direction.
9. the bearing calibration according to the arbitrary described flying probe tester of claim 1-3, it is characterised in that: described step E1 comprises the steps:
First CCD camera of the step E11: the first test axle moves to the dead ahead of the 3rd CCD camera of the 3rd test axle, the needle point of the 3rd probe coordinate position at the first the first CCD camera center testing axle is (CCD1.x+ Δ L-Tip3CCDinit.x, CCD1.y-Tip3CCDinit.y)；
3rd probe of the step E12: the three test axle moves to the dead ahead of the first CCD camera of the first test axle；
Step E13: the 3rd probe is placed in the focal length of the first CCD camera of the first test axle；
Step E14: the position of fine setting the 3rd test axle, makes the needle point of center alignment the 3rd probe of the first CCD camera, obtains the actual coordinate (Tip3.x, Tip3.y) of the now needle point of the 3rd probe, the 3rd test axle back to zero；
Step E15: calculate the side-play amount (Tip3CCD.x, Tip3CCD.y) between needle point and the center of the 3rd CCD camera of the 3rd probe, Tip3CCD.x=| | Tip3.x-CCD3.x |-Δ L |, Tip3CCD.y=| Tip3.y-CCD3.y |.
10. the bearing calibration according to the arbitrary described flying probe tester of claim 1-3, it is characterised in that: described step E2 comprises the steps:
Described step E2 comprises the steps:
4th CCD camera of the step E21: the four test axle is automatically moved to the reverse side in described copper facing hole, and the center of the 3rd CCD camera is by test computed in software theoretical coordinate value (SolderLInil-CCD3.x, CCD3.y) out at this copper-plated coordinate；
Step E22: the position of fine setting the 4th test axle, makes the center of the 4th CCD camera be directed at the center of this copper facing hole reverse side, obtains the center actual machine coordinate (CCD4.x, CCD4.y) in described copper facing hole of now the 4th CCD camera；
Step E23: the needle point of test computed in software the 4th probe is at the coordinate position (CCD4.x+ Δ L-Tip4CCDinit.x, CCD4.y-Tip4CCDinit.y) at the first the first CCD camera center testing axle；
Step E24: the four probe is automatically moved to the dead ahead of the first CCD camera, is then manually placed on by the 4th probe in the focal length of the first CCD camera of the first test axle；
Step E25: the position of fine setting the 4th test axle, makes the needle point of cross pinwheel alignment the 4th probe of the first CCD camera, obtains the actual machine coordinate (Tip4.x, Tip4.y) of the now needle point of the 4th probe, the 4th test axle back to zero；
Step E26: calculate the side-play amount (Tip4CCD.x, Tip4CCD.y) between needle point and the center of the 4th CCD camera of the 4th probe, Tip4CCD.x=| | Tip4.x-CCD4.x |-Δ L |, Tip4CCD.y=| Tip4.y-CCD4.y |；3rd probe and the 4th probe (between reverse side probe) total kilometres SolderL in the X direction, SolderL=Tip3.x+Tip4.x.
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| CN106771979A (en) * | 2016-12-30 | 2017-05-31 | 南京协辰电子科技有限公司 | A kind of pair of calibration method of probe flying probe device |
| CN107271886A (en) * | 2017-07-12 | 2017-10-20 | 深圳市迈创力科技有限公司 | A kind of rapid-aligning method of flying probe tester |
| CN107462824A (en) * | 2017-08-07 | 2017-12-12 | 大族激光科技产业集团股份有限公司 | The compensation method of the control method and positioning precision of the kinematic axis of flying probe tester |
| CN107942238A (en) * | 2017-12-30 | 2018-04-20 | 大族激光科技产业集团股份有限公司 | The test point distribution method and device of printed circuit board (PCB) |
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| CN110736910A (en) * | 2018-07-18 | 2020-01-31 | 大族激光科技产业集团股份有限公司 | Flying probe test method, test device, test equipment and storage medium of PCB |
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| CN111562413A (en) * | 2019-02-14 | 2020-08-21 | 均豪精密工业股份有限公司 | Detection method and detection system |
| CN110333470A (en) * | 2019-07-18 | 2019-10-15 | 深圳橙子自动化有限公司 | A kind of device attachment calibration method for flying probe |
| CN110333470B (en) * | 2019-07-18 | 2022-06-28 | 深圳橙子自动化有限公司 | Device mounting calibration method for flying probe test |
| CN114236197A (en) * | 2021-12-21 | 2022-03-25 | 深圳市阳晶电子科技有限公司 | Mobile probe type testing machine and testing method thereof |
| CN114441942A (en) * | 2022-01-28 | 2022-05-06 | 苏州格拉尼视觉科技有限公司 | Flying probe testing method, system, equipment and storage medium for PCB |
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| CN114460442A (en) * | 2022-02-09 | 2022-05-10 | 苏州格拉尼视觉科技有限公司 | High-precision needle-off compensation method and device for flying needle test and storage medium |
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