CN107121632B - Flying probe test system - Google Patents
Flying probe test system Download PDFInfo
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- CN107121632B CN107121632B CN201710566688.3A CN201710566688A CN107121632B CN 107121632 B CN107121632 B CN 107121632B CN 201710566688 A CN201710566688 A CN 201710566688A CN 107121632 B CN107121632 B CN 107121632B
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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]
- G01R31/2806—Apparatus therefor, e.g. test stations, drivers, analysers, conveyors
- G01R31/2808—Holding, conveying or contacting devices, e.g. test adapters, edge connectors, extender boards
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Abstract
The invention discloses a flying probe testing system, which comprises a flying probe testing machine, an automatic feeding and discharging mechanism and a control console, wherein the automatic feeding and discharging mechanism and the control console are arranged on one side of the flying probe testing machine, and the flying probe testing machine comprises: the base, anchor clamps, the test axle of setting on the base, automatic unloading mechanism includes: the manipulator is arranged on the sucker and the code scanning device of the manipulator. According to the invention, the mechanical arm of the automatic feeding and discharging mechanism is used for automatically feeding and discharging the plate to the clamp, so that the influence of manual factors on the flying probe test result caused by manual feeding and discharging of the human is effectively avoided; the base adopts the mineral casting base, can effectively reduce the vibration that the test axle high-speed operation is produced, adopts the metal frame to pour mineral material's mineral casting fuselage, still reducible outside electromagnetic field's interference, promotes test accuracy, adopts the bar code or the two-dimensional code that sweep the yard device to on the PCB board to scan discernment, has effectively reduced time and the mistake of manual identification PCB board model, promotes work efficiency.
Description
Technical Field
The invention relates to a flying probe test device, in particular to a flying probe test system.
Background
At present, when a vertical flying probe tester detects a printed circuit board, a circuit board to be tested is placed in an upper clamp and a lower clamp of the tester in a manual board feeding mode, and when the circuit board to be tested is fixed, an operation button of the upper clamp and the lower clamp of the tester is required to be operated to finish a clamping plate process, and the upper end of the PCB is generally fixed by the upper clamp, and the lower end of the PCB is fixed by the lower clamp; and taking out the qualified area and the unqualified area from the upper clamp and the lower clamp of the testing machine in a manual board taking mode after the detection is finished, and then respectively placing the qualified area and the unqualified area of the tested area according to the test result. The whole plate loading and unloading process is complicated, and the operation is slow, wastes time and energy, and overall efficiency is low, and easily makes mistakes and damages the PCB board.
The transmission mechanism of the traditional flying probe tester is generally arranged on a plastic base or a metal base, and the transmission mechanism is started and stopped instantaneously and rapidly to generate extremely large inertia force, so that the whole machine body vibrates very frequently, and the sizes of a bonding pad and a through hole of a PCB are very small, so that a probe cannot accurately contact the bonding pad and the through hole of the PCB to cause other defects such as missing test or misplacement test, and the like, so that the test precision and the test result cannot be ensured; meanwhile, because electromagnetic fields can be generated when the motor of the transmission mechanism runs and when the current and the voltage of the internal circuit of the flying probe tester change, the flying probe test can be interfered, and the precision of the test result is affected.
Meanwhile, before each test, the model of the PCB needs to be confirmed, and then a corresponding test program is selected to start the test, so that the test is time-consuming and easy to confuse.
Meanwhile, before the flying probe test is performed, the CCD camera of each test shaft needs to blindly align the alignment points of the PCB, which is time-consuming and labor-consuming and has a complex process.
Accordingly, the prior art has drawbacks and needs improvement.
Disclosure of Invention
The invention aims to solve the technical problems that: the flying probe testing system is capable of avoiding the influence of human factors caused by manual feeding and discharging on a testing result, reducing the influence of vibration and electromagnetic interference on the testing result during flying probe testing, reducing the time required by visual positioning and reducing the error and the time spent caused by manual confirmation of PCB type numbers.
The technical scheme of the invention is as follows: there is provided a flying probe testing system comprising: the automatic feeding and discharging mechanism is arranged at one side of the flying needle tester;
the flying probe tester includes: base, install anchor clamps and test axle on the base, install test epaxial probe, anchor clamps are the anchor clamps of automatic clamping PCB board, including the last anchor clamps and the lower anchor clamps of symmetry setting, go up the structure of anchor clamps and lower anchor clamps the same, go up the anchor clamps and include: the PCB positioning mechanism is arranged at the periphery of the clamp clamping mechanism; the clamp clamping mechanism is used for clamping and fixing the PCB, and the PCB positioning mechanism is used for positioning and supporting in an auxiliary mode when the clamp clamps the PCB.
The automatic feeding and discharging mechanism comprises: the device comprises a manipulator main body platform, a board storage platform to be tested, and a tested board storage platform, wherein the board storage platform to be tested is arranged on one side of the manipulator main body platform, and the tested board storage platform is arranged on the other side of the manipulator main body platform; the robot body platform includes: the device comprises an outer frame, a to-be-tested plate storage platform assembly bit, a tested plate storage platform assembly bit and a manipulator main body structure, wherein the to-be-tested plate storage platform assembly bit is arranged on the outer frame; the assembly positions of the plate storage platform to be tested and the assembly positions of the plate storage platform to be tested are distributed on two sides of the main body structure of the manipulator. The device comprises a manipulator main body platform, a plate storage platform to be tested, a measured plate storage platform assembly position and a measured plate storage platform.
Further, the flying probe tester also comprises an outer cover, and the outer cover covers the whole base and the test shaft. The housing is used to reduce the impact of the external environment on the flying probe test.
Further, the flying probe testing system further comprises a control console, and the control console is connected with the flying probe testing machine and the automatic feeding and discharging mechanism. The control console comprises a touch screen display for man-machine interaction, and controls the whole flying probe testing system to ensure that the flying probe testing system operates normally.
Further, the base is a mineral casting base. The mineral casting base can effectively reduce vibration generated when the test shaft moves rapidly, and improves the precision of flying probe test. The mineral casting base comprises a machine body and a side plate of a mineral casting, the mineral casting is formed by casting and processing a mineral material, and the mineral material is a composite material formed by taking materials such as modified epoxy resin and the like as cementing materials, taking mineral particles such as granite, marble or cobblestone and the like as aggregate, and reinforcing the mineral particles by reinforcing fibers or nano particles. Furthermore, the mineral casting body adopts a mineral casting with a metal frame poured with mineral materials, so that the body has the advantages of metal and common mineral casting. The grounding of the machine body is enhanced by the metal outer frame, so that the interference generated by the voltage and the current of a motor and a circuit of the transmission mechanism can be reduced, and the testing precision is improved.
Further, the number of the test shafts is four, the test shafts are distributed on two sides of the clamp in pairs, and at least one of the test shafts on each side is provided with a CCD camera. The test shaft is a mechanical component which is provided with two motion directions and is in linkage with the X shaft and the Y shaft, and the probe which is driven by a motor and can independently and quickly move is arranged on the mechanical component, and the controllable movement of the probe in the Z shaft direction is utilized. Each side is provided with two test shafts, so that the test space can be fully utilized, and the range of motion of each test shaft is small due to the fact that too many test shafts are avoided. The CCD camera is used for aligning the probe with an alignment point on the PCB, and the alignment method is a quick alignment method of the flying probe tester, and comprises the following steps:
the first step: any PCB to be tested with a regular shape is taken and is arranged in a clamp of the flying probe tester;
and a second step of: and the test data of the PCB is called, wherein the test data comprises the distance from the edge of the PCB to the first pair of points in the X-axis direction, the angle and the distance between each pair of points and the like.
And a third step of: starting a flying probe tester, returning each test shaft to the original point, starting a test shaft with a CCD camera to enable the test shaft to move towards the X-axis direction, and searching the board edge of the PCB by using the CCD camera; when the CCD camera captures the board edge of the PCB, the test software calculates the distance between the position displacement from the origin to the position of the test shaft with the CCD camera and the X-axis direction distance between the PCB edge and the first pair of sites, so that the position parameters of the first pair of sites in the X-axis direction are determined, and after the CCD camera moves to the projection position of the first pair of sites in the X-axis direction, the CCD camera continues to move in the Z-axis direction, so that the first pair of sites is captured, and the specific position parameters of the first pair of sites are obtained. The CCD camera is quickly aligned with other alignment points through the angle and distance between the alignment points. The probe is aligned with the alignment point according to the data acquired by the CCD camera and preset data between the probe and the CCD camera.
Further, the clamp clamping mechanism includes: the device comprises a cross beam, a spring piece fixed on one side of the cross beam, a bending piece and a panel fixed on the other side of the cross beam, a movable clamping groove connected with the spring piece, and a telescopic component fixed on the bending piece, wherein the panel presses the bending piece to be fixed on the cross beam, and the telescopic component is arranged in the movable clamping groove; the crossbeam is the supporting part of anchor clamps for install other parts, the spring leaf provides the effort of clamp for movable clamp groove, and the setting is in the hem of the piece of bending in the movable clamp groove is the installation base plate of flexible subassembly, flexible subassembly is flexible, extrudees the piece of bending and movable clamp groove, because the piece of bending is fixed on the crossbeam, and movable clamp groove is connected on the spring leaf, and the spring leaf alright take place deformation for movable clamp groove can move about, consequently, through the flexible suitable flexible of flexible subassembly, alright carry out the centre gripping to the PCB board of different thickness, realize the anchor clamps function. The PCB positioning mechanism comprises: the device comprises a support plate fixed at two ends of a beam, a driving mechanism arranged on the support plate, a driving long shaft connected with the driving mechanism, a swing control rod fixed on the driving long shaft, a driven short shaft connected with the swing control rod, and a sheet metal plate arranged on the driven short shaft, wherein the driving long shaft is connected with the support plate at two ends of the beam, and the sheet metal plates are distributed at two sides of the beam. The PCB positioning device comprises a support plate, a driving long shaft, a swinging control rod, a driven short shaft, a metal plate, a supporting plate and a driving mechanism.
Further, the manipulator main body structure includes: the device comprises a mounting plate fixed on an outer frame, a manipulator fixed on the mounting plate, a sucker fixing plate arranged at the tail end of the manipulator and a sucker arranged on the sucker fixing plate, wherein the sucker fixing plate is also provided with a code scanning device, and the code scanning device is arranged on one side of the sucker. The code scanning device is connected with the control console, and is used for scanning two-dimensional codes (or bar codes and the like) on the PCB, identifying the model of the PCB, and calling a corresponding test program according to the model of the PCB; the sucking disc is used for sucking the PCB board, the manipulator is used for moving the sucking disc and sweeping the sign indicating number device, and the sucking disc of being convenient for sucks the PCB board and sweeps the sign indicating number device and scan the two-dimensional code.
Further, the board storage platform to be tested includes: the device comprises a frame, an inclined storage level and a magnetic key, wherein the inclined storage level and the magnetic key are arranged on the frame, and the storage level is connected with the frame through a spring. The inclined storage level is connected with the frame through a spring, so that the inclined storage level can move in a certain range, when the mechanical arm moves the sucker to suck materials, the mechanical arm slightly swings, so that the materials sucked by the sucker are separated from the latter materials, and multiple sucking materials are avoided. The PCB material storage platform comprises a PCB material storage platform, a sucking disc, a PCB material storage platform, a through hole and a connecting rod, wherein the through hole is formed in the material storage position of the material storage platform of the board to be tested and is used for identifying whether the PCB is arranged in the material storage position through the sucking disc; the magnetic key corresponds to a magnetic lock of the assembly position of the plate storage platform to be tested of the outer frame and is used for fixing the plate storage platform to be tested at the assembly position of the plate Chu Liaowei platform to be tested.
Further, the measured plate storage platform comprises: the storage level comprises a qualified plate storage level and an unqualified plate storage level. The inclined storage level is convenient for the manipulator to move the sucking disc to place the PCB board, and the magnetic key corresponds to the magnetic lock of the measured board storage platform assembly position of the outer frame and is used for fixing the measured board storage platform at the measured board Chu Liaowei platform assembly position. The qualified PCB of flying probe test is used for depositing to the fit board storage material level, the unqualified PCB of flying probe test is used for depositing to the unfit board storage material level.
Further, a magnetic lock is arranged at the assembly position of the plate storage platform to be tested and the assembly position of the plate storage platform to be tested of the outer frame. The magnetic lock is matched with a corresponding magnetic key for use.
Further, the number of the flying probe test machines is not less than one.
Further, the flying probe tester is one.
The working flow of the flying probe test system is as follows:
(1) And placing the PCB into the storage position of the plate storage platform to be tested, pushing the plate storage platform to be tested into the plate Chu Liaowei platform assembly position to be tested, and pushing the plate storage platform to be tested into the plate storage platform assembly position to be tested.
(2) The manipulator moves the sucking disc and sweeps a yard device, sweep the two-dimensional code on a yard device scanning PCB board, the control cabinet discerns concrete PCB board model according to sweep the figure that a yard device scanned to call the test data of corresponding model, the sucking disc absorbs the PCB board.
(3) The manipulator moves the PCB and is matched with the clamp to clamp the PCB.
(4) And the CCD camera on the test shaft is aligned by the rapid alignment method.
(5) And the test shaft of the flying probe tester performs flying probe test on the PCB.
(6) After the test is finished, the control console records the test result of the tested PCB, and the manipulator is matched with the clamp to take down the PCB.
(7) And the manipulator places the PCB board into a corresponding storage position according to the test result.
(8) Repeating the step (2); and (3) repeating the step (1) when the storage level of the board storage platform to be tested is not provided with the PCB.
By adopting the scheme, the invention provides the flying probe testing system, the mechanical arm of the automatic feeding and discharging mechanism is used for automatically feeding and discharging the clamp, so that the influence of manual feeding and discharging of a person on the flying probe testing result is effectively avoided; the flying probe tester base adopts the mineral casting base, so that vibration generated when a test shaft runs at high speed can be effectively reduced, and the mineral casting body made of mineral materials is poured by adopting the metal outer frame, so that the interference of an external electromagnetic field can be reduced, and the test precision is improved; meanwhile, the CCD camera adopts a rapid alignment method to align alignment points on the PCB, so that the time required by alignment is effectively reduced; further, the bar code or the two-dimensional code on the PCB is scanned and identified by adopting the code scanning device, so that the time and the error for manually identifying the type of the PCB are effectively reduced; further, the board storage platform to be tested adopting the design of preventing multiple sucking materials effectively avoids the time required for processing the problem of sucking materials with sucking discs, and improves the working efficiency.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is an isometric view of the invention;
FIG. 5 is an isometric view of the invention;
FIG. 6 is a schematic diagram of an automatic loading and unloading mechanism according to the present invention;
FIG. 7 is a schematic illustration of the structure of the flying probe tester of the present invention with the housing removed;
FIG. 8 is a schematic diagram of a test shaft with a CCD camera according to the present invention;
FIG. 9 is a schematic diagram of CCD camera alignment according to the present invention;
FIG. 10 is a schematic diagram of CCD camera alignment according to the present invention;
FIG. 11 is a cross-sectional view of the clamp of the present invention;
FIG. 12 is a schematic view of the structure of the clamp of the present invention;
FIG. 13 is a schematic view of a manipulator according to the present invention;
FIG. 14 is a schematic structural view of an automatic loading and unloading mechanism of the present invention;
fig. 15 is a schematic structural diagram of the multi-suction prevention design of the storage platform for the board to be tested.
Detailed Description
The invention will be described in detail below with reference to the drawings and the specific embodiments.
Referring to fig. 1-7, the present invention provides a flying probe testing system, comprising: the automatic feeding and discharging device comprises a flying probe tester 1 and an automatic feeding and discharging mechanism 2 arranged on one side of the flying probe tester 1;
the flying probe tester 1 includes: base 5, install anchor clamps 6 and test shaft 7 on the base 5, install probe 24 on the test shaft 7, anchor clamps 6 are the anchor clamps 6 of automatic clamping PCB board 45, including the last anchor clamps and the lower anchor clamps of symmetry setting, go up the structure of anchor clamps and lower anchor clamps the same, go up the anchor clamps and include: the PCB positioning mechanism is arranged at the periphery of the clamp clamping mechanism; the clamp clamping mechanism is used for clamping and fixing the PCB 45, and the PCB positioning mechanism is used for positioning and supporting in an auxiliary mode when the clamp 6 clamps the PCB 45.
The automatic feeding and discharging mechanism 2 comprises: the device comprises a manipulator main body platform 8, a board storage platform 9 to be tested arranged on one side of the manipulator main body platform 8 and a tested board storage platform 10 arranged on the other side of the manipulator main body platform 8; the robot body stage 8 includes: the device comprises an outer frame 11, a to-be-tested plate storage platform assembly bit 12, a tested plate storage platform assembly bit 13 and a manipulator main body structure 14, wherein the to-be-tested plate storage platform assembly bit 12 is arranged on the outer frame 11; the board storage platform assembly bit 12 to be tested and the board storage platform assembly bit 13 to be tested are distributed on two sides of the manipulator main body structure 14. The to-be-measured plate storage platform assembly bit 12 is used for assembling the to-be-measured plate storage platform 9, the measured plate storage platform assembly bit 13 is used for assembling the measured plate storage platform 10, and the to-be-measured plate storage platform 9 and the measured plate storage platform 10 can be separated from the manipulator main body platform 8 and can move independently.
The flying probe tester 1 further comprises a housing 4, and the housing 4 covers the whole base 5 and the test shaft 7. The housing 4 serves to reduce the impact of the external environment on the flying probe test.
The flying probe testing system further comprises a control console 3, and the control console 3 is connected with the flying probe testing machine 1 and the automatic feeding and discharging mechanism 2. The control console 3 comprises a touch screen display for man-machine interaction, and the control console 3 controls the whole flying probe testing system to ensure that the flying probe testing system operates normally.
Referring to fig. 7, the base 5 is a mineral casting base. The mineral casting base can effectively reduce vibration generated when the test shaft 7 moves rapidly, and improves the precision of the flying probe test. The mineral casting base comprises a machine body and a side plate of a mineral casting, the mineral casting is formed by casting and processing a mineral material, and the mineral material is a composite material formed by taking materials such as modified epoxy resin and the like as cementing materials, taking mineral particles such as granite, marble or cobblestone and the like as aggregate, and reinforcing the mineral particles by reinforcing fibers or nano particles. Furthermore, the mineral casting body adopts a mineral casting with a metal frame poured with mineral materials, so that the body has the advantages of metal and common mineral casting. The grounding of the machine body is enhanced by the metal outer frame, so that the interference generated by the voltage and the current of a motor and a circuit of the transmission mechanism can be reduced, and the testing precision is improved.
Referring to fig. 8, 9 and 10, the number of the test shafts 7 is four, the test shafts 7 are distributed on two sides of the fixture 6, and at least one test shaft 7 on each side is provided with a CCD camera 25. The test shaft 7 is a mechanical component which has two movement directions and is linked with the X axis and the Y axis, a probe 24 which is driven by a motor and can independently and rapidly move is arranged on the mechanical component, and the probe 24 can controllably move in the Z axis direction. Each side is provided with two test shafts 7, so that the test space can be fully utilized, and the range of motion of each test shaft 7 is small due to the fact that too many test shafts 7 are avoided. The CCD camera 25 is used for aligning the probe 24 with an alignment point on the PCB 45, and the alignment method is a rapid alignment method of a flying probe tester, and comprises the following steps:
the first step: any PCB 45 to be tested with a regular shape is taken and arranged in the clamp 6 of the flying probe tester 1;
and a second step of: the test data of the PCB 45 is retrieved, and the test data includes a distance Δl between the board edge of the PCB 45 and the first pair of points in the X-axis direction, an angle and a distance between each pair of points, and the like.
And a third step of: starting the flying probe tester 1, returning each test shaft 7 to the original point, starting the test shaft 7 with the CCD camera 25 to move towards the X-axis direction, and searching the board edge of the PCB 45 by using the CCD camera 25; when the CCD camera 25 captures the board edge of the PCB 45, the test software calculates the projection distance L from the origin to the position displacement of the test shaft 7 with the CCD camera 25 and the board edge of the PCB 45 to the first pair of sites in the X-axis direction, so as to determine the position parameter of the first pair of sites in the X-axis direction, and after the CCD camera 25 moves to the position of the first pair of sites in the X-axis direction, the CCD camera 25 continues to move in the Z-axis direction, so that the first pair of sites is captured, and the specific position parameter of the first pair of sites is obtained. The CCD camera 25 is quickly aligned with other alignment points by the angle and distance between the alignment points. The probe 24 is aligned with the alignment point based on the data acquired by the CCD camera 25 and the preset data between the probe 24 and the CCD camera 25.
Referring to fig. 9, 10, 11 and 12, the clamp clamping mechanism includes: the beam 30, a spring piece 31 fixed on one side of the beam 30, a bending piece 32 and a panel 33 fixed on the other side of the beam 30, a movable clamping groove 34 connected with the spring piece 31, and a telescopic component 35 fixed on the bending piece 32, wherein the panel 33 presses the bending piece 32 to be fixed on the beam 30, and the telescopic component 35 is arranged in the movable clamping groove 34; the cross beam 30 is a supporting component of the clamp 6 and is used for installing other components, the spring piece 31 provides clamping force for the movable clamping groove 34, the folded edge of the bending piece 32 arranged in the movable clamping groove 34 is an installation substrate of the telescopic assembly 35, the telescopic assembly 35 stretches and contracts, the bending piece 32 and the movable clamping groove 34 are extruded, the bending piece 32 is fixed on the cross beam, the movable clamping groove 34 is connected to the spring piece 31, the spring piece 31 can deform, the movable clamping groove 34 can move, and therefore, the PCB 45 with different thicknesses can be clamped through proper expansion and contraction of the telescopic assembly 35, and the clamp function is realized. The PCB positioning mechanism comprises: the device comprises a support plate 36 fixed at two ends of a beam 30, a driving mechanism 37 mounted on the support plate 36, a driving long shaft 38 connected with the driving mechanism 37, a swing control rod 39 fixed on the driving long shaft 38, a driven short shaft 40 connected with the swing control rod 39, and a sheet metal plate 41 mounted on the driven short shaft 40, wherein the driving long shaft 38 is connected with the support plates 36 at two ends of the beam 30, and the sheet metal plates 41 are distributed at two sides of the beam 30. The sheet metal plate 41 is used for positioning the PCB 45, the support plate 36 is used for fixing the driving mechanism 37 and supporting the driving long shaft 38, the driving mechanism 37 operates to drive the driving long shaft 38 to rotate, the driving long shaft 38 drives the driven short shaft 40 to move up and down through the swing control rod 39 fixed on the driving long shaft 38, and the sheet metal plate 41 connected with the driven rotating shaft 40 moves, so that the positioning of the PCB 45 is realized.
Referring to fig. 13, the manipulator main structure 14 includes: a mounting plate 15 fixed on the outer frame 11, a robot arm 16 fixed on the mounting plate 15, a suction cup fixing plate 17 mounted at the end of the robot arm 16, and a suction cup 18 mounted on the suction cup fixing plate 17; the code scanning device 23 is also arranged on the fixing plate of the sucker 18, and the code scanning device 23 is arranged on one side of the sucker 18. The code scanning device 23 is connected with the console 3, the code scanning device 23 is used for scanning two-dimensional codes (or bar codes and the like) on the PCB 45, identifying the model of the PCB 45, and the console 3 invokes a corresponding test program according to the model of the PCB 45; the sucker 18 is used for sucking the PCB 45, the manipulator 16 is used for moving the sucker 18 and the code scanning device 23, and the sucker 18 is convenient for sucking the PCB 45 and the code scanning device 23 to scan the two-dimensional code.
Referring to fig. 14 and 15, the board storage platform 9 to be tested includes: the device comprises a frame 19, an inclined storage level 20 arranged on the frame 19 and a magnetic key 27, wherein the storage level 20 is connected with the frame 19 through a spring 21. The inclined storage level 20 is connected with the frame 19 through the springs 21, so that the inclined storage level 20 can move in a certain range, when the sucker 18 is moved by the manipulator 16 to suck the PCB 45, the PCB 45 sucked by the sucker 18 is separated from the later PCB 45 due to slight swinging of the manipulator 16, and multiple sucking is avoided. A through hole 22 is formed in the storage material level 20 of the board storage platform 9 to be tested, and the through hole 22 is used for identifying whether the PCB 45 exists in the storage material level 20 or not by the sucker 18; the magnetic key 27 corresponds to the magnetic lock 26 of the mounting position 12 of the board storage platform to be tested of the outer frame 11, and is used for fixing the board storage platform 9 to be tested at the mounting position 12 of the board Chu Liaowei to be tested.
Referring to fig. 14, the measured plate storage platform 10 includes: the storage level 20 comprises a qualified plate storage level 28 and an unqualified plate storage level 29. The inclined storage level 20 facilitates the manipulator 16 to move the sucking disc 18 to place the PCB board 45, and the magnetic key 27 corresponds to the magnetic lock 26 of the measured board storage platform assembly position 13 of the outer frame 11 and is used for fixing the measured board storage platform 10 at the measured board Chu Liaowei platform assembly position 13. The qualified PCB board 45 that flying probe test was qualified is used for depositing to the qualified board storage material level 28, and the unqualified board storage material level 29 is used for depositing the unqualified PCB board 45 of flying probe test.
Referring to fig. 14, the mounting positions 12 and 13 of the board storage platform to be tested and the outer frame 11 are provided with magnetic locks 26. The magnetic lock 26 cooperates with a corresponding magnetic key 27.
The number of the flying probe test machines 1 is not less than one.
In this embodiment, the flying probe tester 1 is one.
The working flow of the flying probe test system is as follows:
(1) The PCB 45 is placed in the storage position 20 of the board storage platform 9 to be tested, the board storage platform 9 to be tested is pushed into the board Chu Liaowei platform assembly position 12 to be tested, and the board storage platform 10 to be tested is also pushed into the board storage platform assembly position 13 to be tested.
(2) The manipulator 16 moves the sucking disc 18 and the code scanning device 23, the code scanning device 23 scans the two-dimensional code on the PCB 45, the control console 3 identifies the specific type of the PCB 45 according to the pattern scanned by the code scanning device 23 and calls the test data of the corresponding type, and the sucking disc 18 sucks the PCB 45.
(3) The manipulator 16 moves the PCB 45 and clamps the PCB 45 in cooperation with the clamp 6.
(4) The CCD camera 25 on the test shaft 7 is aligned by the rapid alignment method described above.
(5) The test shaft 7 of the flying probe tester 1 performs a flying probe test on the PCB 45.
(6) After the test is finished, the console 3 records the test result of the tested PCB 45, and the manipulator 16 is matched with the clamp 6 to take down the PCB 45.
(7) The manipulator 16 places the PCB 45 in the corresponding storage level 20 according to the test result.
(8) Repeating the step (2); and (5) repeating the step (1) when the storage level 20 of the board storage platform 9 to be tested does not have the PCB.
In summary, the invention provides the flying probe test system, which automatically loads and unloads the clamp through the manipulator of the loading and unloading mechanism, so that the influence of manual loading and unloading on the flying probe test result caused by manual loading and unloading by a person is effectively avoided; the flying probe tester base adopts the mineral casting base, so that vibration generated when a test shaft runs at high speed can be effectively reduced, and the mineral casting body made of mineral materials is poured by adopting the metal outer frame, so that the interference of an external electromagnetic field can be reduced, and the test precision is improved; meanwhile, the CCD camera adopts a rapid alignment method to align alignment points on the PCB, so that the time required by alignment is effectively reduced; further, the bar code or the two-dimensional code on the PCB is scanned and identified by adopting the code scanning device, so that the time and the error for manually identifying the type of the PCB are effectively reduced; further, the board storage platform to be tested adopting the design of preventing multiple sucking materials effectively avoids the time required for processing the problem of sucking materials with sucking discs, and improves the working efficiency.
The foregoing description of the preferred embodiment of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. The flying probe testing system is characterized by comprising a flying probe testing machine and an automatic feeding and discharging mechanism arranged at one side of the flying probe testing machine;
the flying probe tester includes: the base, install anchor clamps and the test axle on the base, install test epaxial probe, anchor clamps are the anchor clamps of automatic clamping PCB board, last anchor clamps and lower anchor clamps including the symmetry setting, go up the anchor clamps and include: the PCB positioning mechanism is arranged at the periphery of the clamp clamping mechanism;
the automatic feeding and discharging mechanism comprises: the device comprises a manipulator main body platform, a board storage platform to be tested, a tested board storage platform and a tested board storage platform, wherein the board storage platform to be tested is installed on one side of the manipulator main body platform; the robot body platform includes: the outer frame is arranged on the outer frame, and is provided with a to-be-tested plate storage platform assembly position, a tested plate storage platform assembly position and a manipulator main body structure; the assembly positions of the plate storage platform to be tested and the assembly positions of the plate storage platform to be tested are distributed on two sides of the main structure of the manipulator;
the clamp clamping mechanism includes: the device comprises a cross beam, a spring piece fixed on one side of the cross beam, a bending piece and a panel fixed on the other side of the cross beam, a movable clamping groove connected with the spring piece, and a telescopic component fixed on the bending piece, wherein the panel presses the bending piece to be fixed on the cross beam, and the telescopic component is arranged in the movable clamping groove; the PCB positioning mechanism comprises: the device comprises a support plate fixed at two ends of a beam, a driving mechanism arranged on the support plate, a driving long shaft connected with the driving mechanism, a swing control rod fixed on the driving long shaft, a driven short shaft connected with the swing control rod, and a sheet metal plate arranged on the driven short shaft, wherein the driving long shaft is connected with the support plate at two ends of the beam, and the sheet metal plates are distributed at two sides of the beam;
the automatic feeding and discharging device also comprises a control console, wherein the control console is connected with the flying probe tester and the automatic feeding and discharging mechanism.
2. The flying probe testing system of claim 1, wherein the flying probe tester further comprises a housing, the housing enclosing the entire base and the test shaft.
3. The flying probe testing system of claim 1, wherein said base is a mineral casting base.
4. The flying probe testing system according to claim 1, wherein the number of the testing shafts is four, the testing shafts are distributed on two sides of the clamp, and at least one of the testing shafts on each side is provided with a CCD camera.
5. The flying probe testing system of claim 1, wherein the manipulator body structure comprises: the device comprises a mounting plate fixed on an outer frame, a mechanical arm fixed on the mounting plate, a sucker fixing plate arranged at the tail end of the mechanical arm and a sucker arranged on the sucker fixing plate; the code scanning device is arranged on the sucker fixing plate and is arranged on one side of the sucker.
6. The flying probe testing system of claim 1, wherein the board under test storage platform comprises: the device comprises a frame, an inclined storage level and a key, wherein the inclined storage level and the key are arranged on the frame, and the storage level is connected with the frame through a spring.
7. The flying probe testing system of claim 1, wherein said measured plate magazine comprises: the storage level comprises a qualified plate storage level and an unqualified plate storage level.
8. The flying probe testing system according to claim 1, wherein the magnetic lock is arranged at the assembly position of the board storage platform to be tested and the assembly position of the board storage platform to be tested of the outer frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710566688.3A CN107121632B (en) | 2017-07-12 | 2017-07-12 | Flying probe test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710566688.3A CN107121632B (en) | 2017-07-12 | 2017-07-12 | Flying probe test system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107121632A CN107121632A (en) | 2017-09-01 |
| CN107121632B true CN107121632B (en) | 2023-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710566688.3A Active CN107121632B (en) | 2017-07-12 | 2017-07-12 | Flying probe test system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109129535A (en) * | 2018-10-26 | 2019-01-04 | 苏州富强科技有限公司 | A kind of test device |
| CN111086882B (en) * | 2019-11-05 | 2021-05-28 | 深圳市迈创力科技有限公司 | Method for shortening transfer cycle time |
| CN110977916B (en) * | 2019-12-03 | 2022-11-15 | 深圳市迈创力科技有限公司 | Method for marking tested PCB |
| CN113189474B (en) * | 2021-04-26 | 2023-06-16 | 厦门理工学院 | Flexible circuit board roll-to-roll light board testing device and method |
| CN114594368A (en) * | 2022-03-07 | 2022-06-07 | 深圳市阳晶电子科技有限公司 | Capacitive detection device and detection method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW458281U (en) * | 1999-12-27 | 2001-10-01 | Ect & Amp T Inc | Structure improvement of test card fixture for motherboard tester |
| CN101762755B (en) * | 2008-12-24 | 2012-03-21 | 深圳麦逊电子有限公司 | High-density printed circuit board (PCB) test machine and method |
| CN201417986Y (en) * | 2009-06-20 | 2010-03-03 | 江西理工大学 | Anti-resonance motor base |
| CN102729576B (en) * | 2012-06-15 | 2014-10-15 | 宿迁亿泰自动化工程有限公司 | False pressing system of flexible printed circuit |
| CN206002654U (en) * | 2016-08-05 | 2017-03-08 | 深圳市维圳泰科技有限公司 | The flying probe tester of screw drive |
| CN206906541U (en) * | 2017-07-12 | 2018-01-19 | 深圳市迈创力科技有限公司 | A kind of flying probe system |
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