CN117330933A - FCT test fixture alignment verification device and control method thereof - Google Patents

Abstract

The invention relates to the technical field of jig alignment verification, and provides an FCT test jig alignment verification device and a control method thereof. The FCT test fixture alignment verification device comprises an alignment module, an image acquisition module, a driving module and a display module; the alignment module is provided with a first laser emission end and a second laser emission end; the image acquisition module is used for acquiring image information of the jig module and the clamping plate to be tested; the driving module is suitable for driving the alignment module to move, and at least part of the moving path of the alignment module is positioned between the jig module and the clamping plate to be tested; the display module is suitable for displaying the image information acquired by the image acquisition module. The invention can facilitate the visual observation of the laser irradiation positions on the jig module and the clamping plate to be tested by operators so as to judge the alignment state, effectively reduce the alignment operation difficulty, reduce the labor cost and the time cost and reduce the damage risk.

Description

FCT test fixture alignment verification device and control method thereof

Technical Field

The invention relates to the technical field of jig alignment verification, in particular to an FCT test jig alignment verification device and a control method thereof.

Background

The FCT (functional test) testing fixture is equipment for detecting and testing PCBA (printed circuit board) main board products, and is widely applied to the fields of servers, electronics, automobiles and the like.

The jig module or the downloading plate of the FCT test jig must be accurate in position during design and manufacture, and the jig module is prevented from damaging the board card to be tested on the downloading plate in the test process. The alignment between the jig module and the test clamping plate on the download board is frequently problematic due to the influence of factors such as the current manufacturing process, product processing errors, long-term unused factors and the like, and the unstable test or the damage of the connector of the board to be tested is often caused, so that the product delivery achievement rate and the connector damage maintenance rate are influenced.

At present, in the aspect of alignment verification of the FCT test fixture, a manual operation mode is generally adopted for adjustment and alignment, but for the fixture module in the FCT test fixture, the butting state between the fixture module and the test card connector cannot be visually observed by naked eyes, so that the FCT test fixture needs to spend a great deal of labor cost and time cost from development and design to leading-in production and later maintenance, and in the debugging process, the butting error easily causes interface damage of the test card and fixture module damage.

Disclosure of Invention

The invention provides an FCT test fixture alignment verification device and a control method thereof, which are used for solving the problems that in the prior art, the FCT test fixture is adjusted and aligned in a manual operation mode, the butt joint state between a fixture module and a test card connector cannot be intuitively observed for the fixture module in the FCT test fixture, and the interface of the test card is damaged and the fixture module is damaged easily.

The invention provides an aligning and verifying device of an FCT test fixture, which is used for aligning and verifying a fixture module and a clamping plate to be tested in the FCT test fixture, and comprises the following components:

the alignment module is provided with a first laser emission end and a second laser emission end, the first laser emission end is used for emitting laser to the jig module, and the second laser emission end is used for emitting laser to the to-be-tested clamping plate, wherein the laser emitted by the first laser emission end is collinear with the laser emitted by the second laser emission end;

the image acquisition module is used for acquiring image information of laser irradiation positions of the first laser emission end and the second laser emission end;

the driving module is connected with the alignment module and used for driving the alignment module to move, and at least part of moving paths of the alignment module are positioned between the jig module and the clamping plate to be tested;

the display module is in signal connection with the image acquisition module and is used for displaying the image information acquired by the image acquisition module.

The invention provides an FCT test fixture alignment verification device, which further comprises:

the control module is electrically connected with the image acquisition module, the display module and the driving module and is used for:

determining a target position based on the pre-stored tool module and the engineering file of the clamping plate to be tested, and controlling the alignment module to move to the target position through the driving module;

and controlling the display module to display the image information acquired by the image acquisition module.

According to the alignment verification device of the FCT test fixture provided by the invention, the driving module comprises:

a support frame;

the mounting piece is movably arranged on the supporting frame, and the alignment module is arranged on the mounting piece;

and the driving assembly is connected with the mounting piece and is suitable for driving the mounting piece to move along the supporting frame.

According to the alignment verification device of the FCT test fixture provided by the invention, the driving assembly comprises:

the sliding connection piece is in sliding connection with the support frame along a first direction, and the mounting piece is in sliding connection with the sliding connection piece along a second direction;

a first drive structure connected to the slip joint;

a second driving structure connected with the sliding connection piece;

wherein the first direction is perpendicular to the second direction.

According to the FCT test fixture alignment verification device provided by the invention, the supporting frame is suitable for being detachably connected with the fixture module and the positioning structure of at least one of the clamping plates to be tested.

According to the FCT test fixture alignment verification device provided by the invention, the image acquisition module comprises the first camera and the second camera, the first camera and the second camera are mounted on the mounting piece, the first camera is used for acquiring the image information of the fixture module, the area acquired by the first camera at least comprises one side of the fixture module facing the to-be-tested clamping plate, the second camera is used for acquiring the image information of the to-be-tested clamping plate, and the area acquired by the second camera at least comprises one side of the to-be-tested clamping plate facing the fixture module.

According to the FCT test fixture alignment verification device provided by the invention, the alignment module is the laser range finder, and the laser range finder is used for collecting the distance information from the first laser emission end and the second laser emission end to the laser irradiation point.

According to the FCT test fixture alignment verification device provided by the invention, the control module is further electrically connected with the alignment module, and the control module is further used for: and determining the horizontal state information of the jig module and/or the target component in the to-be-tested clamping plate based on the distance information acquired by the alignment module at least three target positions, wherein at least one of the at least three target positions is not collinear with the rest of the target positions.

The invention also provides a control method of the FCT test fixture alignment verification device, which comprises the following steps:

driving the alignment module to move to a target position;

controlling the alignment module to emit laser towards the jig module and the clamping plate to be tested respectively;

and controlling an image acquisition module to acquire image information of laser irradiation positions of the first laser emission end and the second laser emission end, and controlling a display module to display the image information.

According to the control method provided by the invention, before the step of driving the alignment module to move to the target position, the control method further comprises the following steps:

and determining target position information based on the tool module and the engineering file of the clamping plate to be tested, and sending the target position information to the driving module.

According to the control method provided by the invention, the step of driving the alignment module to move to the target position comprises the following steps:

driving the alignment module to move to at least three target positions, wherein at least one target position in the at least three target positions is not collinear with the rest of target positions;

the control method further includes:

controlling the alignment module to detect the distance information from the first laser emission end and/or the second laser emission end to the laser irradiation point;

and determining the horizontal state information of the jig module and/or the target component in the to-be-tested clamping plate based on the distance information measured by the alignment module at least three target positions.

According to the control method provided by the invention, the control method further comprises the following steps:

and controlling the display module to display the horizontal state information.

According to the FCT test fixture alignment verification device and the control method thereof, after the driving module moves the alignment module to the fixture module and the clamping plate to be tested, laser can be respectively emitted to the fixture module and the clamping plate to be tested through the first laser emitting end and the second laser emitting end of the alignment module, image information of the fixture module and the clamping plate to be tested is collected through the image collecting module and displayed through the display module, an operator can intuitively observe laser irradiation positions on the fixture module and the clamping plate to be tested through the display module, so that alignment state judgment is performed, alignment operation difficulty is effectively reduced, labor cost and time cost are reduced, and risk that the fixture module and the clamping plate to be tested are easily damaged due to an alignment error is reduced.

Drawings

In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram showing the relative positions of an FCT test fixture alignment verification device, a fixture module and a test board provided by the present invention;

FIG. 2 is a schematic diagram of an overall structure of an alignment verification device of an FCT test fixture according to the present invention;

FIG. 3 is a schematic diagram of a positioning verification device of an FCT test fixture according to the present invention;

FIG. 4 is a schematic view showing the structure of a connector holder according to the present invention;

FIG. 5 is a second schematic diagram of the overall structure of an alignment verification device of an FCT test fixture according to the present invention;

FIG. 6 is a flow chart of the FCT test fixture alignment verification device according to the present invention;

FIG. 7 is a flowchart of a control method of an alignment verification device of an FCT test fixture provided by the present invention;

fig. 8 is a schematic structural diagram of an electronic device provided by the present invention;

reference numerals:

1. a jig module; 2. a clamping plate to be tested; 3. the FCT test fixture is aligned with the verifying device; 4. a support frame; 5. a mounting member; 6. a slip joint; 7. a first driving structure; 8. a second driving structure; 9. an alignment module; 10. a first laser emitting end; 11. a second laser emitting end; 12. a first camera; 121. a second camera; 13. a connector fixing member; 14. a calibration plate; 15. a positioning line; 16. a third laser emitting end; 17. a fourth laser emitting end; 18. a processor; 19. a communication interface; 20. a memory; 21. a communication bus.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1, the alignment verification device 3 of the FCT test fixture of the present invention is suitable for an FCT test fixture, where the FCT test fixture includes a lower download board and an upper press module located on the upper side, and the download board is provided with a positioning structure suitable for fixing a card board to be tested; the lower side of the upper pressing module is provided with a jig module for being in butt joint with a connector of the clamping plate to be tested. In the testing process, if the alignment of the jig module and the clamping plate to be tested is inaccurate, the damage of the connector of the jig module and the clamping plate to be tested is easy to occur, the alignment of the jig module and the clamping plate to be tested is needed to avoid the occurrence of the damage, and the conventional manual observation alignment mode is difficult to operate due to smaller space between the downloading plate and the upper pressing module, and the alignment accuracy is not easy to guarantee.

As shown in fig. 2 and 3, the alignment verification device 3 of the FCT test fixture in the embodiment of the invention is used for performing alignment verification on the fixture module 1 and the card board 2 to be tested, and includes an alignment module 9, an image acquisition module, a driving module and a display module.

The alignment module 9 is provided with a first laser emission end 10 and a second laser emission end 11, the first laser emission end 10 is used for emitting laser to the jig module 1, the second laser emission end 11 is used for emitting laser to the card board 2 to be tested, and the laser emitted by the first laser emission end 10 is collinear with the laser emitted by the second laser emission end 11.

The arrangement direction of the first laser emission end 10 and the second laser emission end 11 is parallel to the arrangement direction of the jig module 1 and the card board 2 to be tested, for example, when the jig module 1 and the card board 2 to be tested are vertically arranged, the first laser emission end 10 and the second laser emission end 11 are also vertically arranged, the directions of the first laser emission end 10 and the second laser emission end 11 are opposite, for example, the first laser emission end 10 emits laser downwards, and the second laser emission end 11 emits laser upwards. The laser emitted by the first laser emitting end 10 and the laser emitted by the second laser emitting end 11 extend along the same vertical straight line.

When the alignment verification of the jig module 1 and the to-be-tested clamping plate 2 is carried out, whether the jig module 1 and the to-be-tested clamping plate 2 are vertically aligned at the point position can be judged by observing the corresponding relation between the irradiation point of the first laser emitting end 10 on the jig module 1 and the irradiation point of the second laser emitting end 11 on the to-be-tested clamping plate 2.

The driving module is connected with the alignment module 9, and is suitable for driving the alignment module 9 to move so as to change the position of the alignment module 9, and at least part of the moving path of the alignment module 9 is positioned between the jig module 1 and the clamping plate 2 to be tested. When the moving paths of the alignment module 9 are all positioned between the jig module 1 and the card board 2 to be tested, the laser emitted by the first laser emitting end 10 and the second laser emitting end 11 are always positioned on the jig module 1 and the card board 2 to be tested; when the moving path of the alignment module 9 is partially located between the jig module 1 and the card board 2 to be tested, only on the moving path between the jig module 1 and the card board 2 to be tested, the laser emitted by the first laser emitting end 10 and the second laser emitting end 11 irradiates on the jig module 1 and the card board 2 to be tested, and at this time, the target position for alignment detection is determined only on the partial path.

It will be appreciated that since the number of points between the jig module 1 and the board under test 2 to be tested is not limited to 1, in some embodiments, it is necessary to perform alignment verification at a plurality of points. The first laser emission end 10 and the second laser emission end 11 can be moved to more than two point positions for alignment verification by arranging the driving module, so that alignment verification of all the point positions of the butt joint test between the jig module 1 and the card board 2 to be tested is realized.

The image acquisition module is used for acquiring image information of laser irradiation positions of the first laser emission end 10 and the second laser emission end 11. In this embodiment, when the image acquisition module acquires the image information of the jig module 1 and the card board 2 to be tested, all the image information of the jig module 1 and the card board 2 to be tested can be always acquired, and only the position where the jig module 1 and the card board 2 to be tested are being aligned and the image information near the position can be acquired.

The display module is a display screen, and the display screen can be a display screen which is independently arranged for performing alignment verification, or can be a display screen on other terminal equipment, such as a display screen on a mobile phone, a tablet or a computer. The display module is in signal connection with the image acquisition module and is suitable for displaying the image information acquired by the image acquisition module.

When the alignment verification device 3 of the FCT test fixture in this embodiment performs alignment verification, when the alignment module 9 is moved to the target position by the driving device, the laser emitted by the first laser emitting end 10 and the second laser emitting end 11 irradiates on one point of the fixture module 1 and one point of the to-be-tested card board 2, the irradiated point of the fixture module 1 is opposite to the irradiated point of the to-be-tested card board 2 along the extending direction of the laser, the image acquisition module acquires the image information on the fixture module 1 and the to-be-tested card board 2, and the image information is displayed by the display module, so that an operator can judge whether the alignment of the fixture module 1 and the to-be-tested card board 2 is realized by observing whether the irradiated point of the fixture module 1 and the irradiated point of the to-be-tested card board 2 can be correspondingly matched.

For example, when the pins on the jig module 1 need to be in butt joint with the jacks on the card board 2 to be tested, and the pins on the jig module 1 and the jacks on the card board 2 to be tested are used as target components, the alignment module 9 can be moved to a position between the pins and the jacks, so that the laser of the first laser emission end 10 irradiates on the pins, whether the laser of the second laser emission end 11 irradiates on the jacks is judged by observing whether the laser of the second laser emission end 11 irradiates on the jacks, if the laser of the second laser emission end 11 irradiates on the jacks, the pin on the jig module 1 and the jacks on the card board 2 to be tested can be determined to be aligned successfully, and if the laser of the second laser emission end 11 does not irradiate on the jacks, the pin on the jig module 1 and the jacks on the card board 2 to be tested can be determined not be aligned, and maintenance adjustment or replacement is needed for the jig module 1 and the card board 2 to be tested.

For another example, when the rectangular socket on the jig module 1 needs to be in butt joint with the rectangular plug-in unit on the card board 2 to be tested, and the socket on the jig module 1 and the plug-in unit on the card board 2 to be tested are taken as target components, the alignment module 9 can be moved to positions corresponding to four corners of the socket and the plug-in unit respectively, so that the laser of the first laser emitting end 10 or the second laser emitting end 11 irradiates the four corners of one of the socket and the plug-in unit respectively, whether the laser of the first laser emitting end 10 or the second laser emitting end 11 irradiates the corresponding positions of the four corners of the other is observed to judge, and if the socket and the four corners of the plug-in unit are observed and judged to be vertically aligned, the socket and the plug-in unit can be in butt joint without maintenance adjustment or replacement; if at least one of the four corners of the socket and the plug-in unit is not vertically aligned through observation and judgment, the socket and the plug-in unit cannot be in butt joint, and maintenance adjustment or replacement is needed.

It can be understood that for a pair of corresponding target components of the jig module 1 and the card 2 to be tested, verification of a single or multiple target positions can be performed according to shapes, and for more than two pairs of corresponding target components of the jig module 1 and the card 2 to be tested, verification of a single or multiple target positions can be performed for each pair of corresponding target components, respectively, so that the number of target positions for verification by the alignment module 9 can be adaptively adjusted based on different requirements of the jig module 1 and the card 2 to be tested.

The FCT test fixture alignment verification device 3 provided by the embodiment of the invention adopts the integrated module to reduce the equipment volume, and can be easily placed between the test fixture downloading plate and the upper pressing module, so that the device cost is lower, the inspection is more convenient, meanwhile, the internal information of the test fixture can be output in real time through the image acquisition module and the display module, and the internal condition can be more conveniently confirmed.

In some embodiments of the present invention, the FCT test fixture alignment verification device 3 further includes a control module, where the control module is electrically connected to the image acquisition module, the display module, and the driving module, and the control module includes a processor for:

determining a target position based on a pre-stored engineering file of the jig module 1 and the clamping plate 2 to be tested, and controlling the alignment module 9 to move to the target position through the driving module;

and controlling the display module to display the image information acquired by the image acquisition module.

The engineering file in this embodiment includes the position information of at least one of the jig module 1 and the board to be tested 2, for example, when the jig module 1 is a board to be tested and the board to be tested 2 is a jig module, the engineering file is a 3D file and/or a Gerber file of the board to be tested.

The control module determines the target position through the engineering file and is used for controlling the operation of the driving module so as to enable the alignment module 9 to move to the target position, thereby realizing accurate positioning and enabling the verification result to be more accurate.

In some embodiments of the invention, the drive module comprises a support frame 4, a mount 5 and a drive assembly. The mounting piece 5 is movably arranged on the supporting frame 4, and the alignment module 9 is arranged on the mounting piece 5. And the driving assembly is connected with the mounting piece 5 and is suitable for driving the mounting piece 5 to move along the support frame 4.

Alternatively, the support frame 4 is a rectangular frame as shown in fig. 2, or a structure composed of only two rod bodies, etc., and the support frame 4 is preferably a rectangular frame in this embodiment.

Alternatively, the mounting member 5 may be a block structure having a shape such as a rectangular parallelepiped, a frame structure composed of a plurality of rod bodies, or the like, and is not particularly limited herein, as long as the mounting of the alignment module 9 and the connection with the driving assembly can be achieved.

In some embodiments of the invention, the drive assembly comprises a slip joint 6, a first drive structure 7 and a second drive structure 8.

The sliding connection piece 6 is in sliding connection with the support frame 4, the sliding direction of the sliding connection piece 6 is along a first direction, the mounting piece 5 is in sliding connection with the sliding connection piece 6 along a second direction, and the first direction is perpendicular to the second direction. For example, the support frame 4 is a rectangular frame structure shown in fig. 2, the sliding connection piece 6 is a rectangular rod body structure, the sliding connection piece 6 penetrates through the mounting piece 5, the length direction of the sliding connection piece 6 is perpendicular to the side frames of two sides of the support frame 4 along the length direction of the support frame 4, two ends of the sliding connection piece 6 are respectively in sliding connection with the side frames of two sides of the support frame 4 along the length direction of the support frame 4 in a manner of matching with sliding grooves and the like, the first direction is along the length direction of the support frame 4, namely the X direction in fig. 2, and the second direction is along the width direction of the support frame 4, namely the Y direction in fig. 2.

The first driving structure 7 is connected with the sliding connection piece 6 and is in signal connection with the control module, and is suitable for driving the sliding connection piece 6 to slide along a first direction; the second driving structure 8 is connected with the sliding connection piece 6 and is in signal connection with the control module, and is suitable for driving the sliding connection piece 6 to slide along the second direction. The first driving structure 7 and the second driving structure 8 cooperate to move the alignment module 9 on the mounting member 5 to the target position.

Optionally, the first driving structure 7 includes a pair of first servomotors and a pair of first driving gears, where the pair of first servomotors are separately disposed on two side frames of the support frame 4 and fixedly connected with the sliding connection piece 6, the motor shafts of the pair of first servomotors and the pair of first driving gears are coaxially fixed in a one-to-one correspondence, the frames on two sides of the support frame 4 along the length direction of the support frame 4 are respectively provided with teeth that are meshed with the pair of driving gears and extend along the length direction of the frame, and the pair of first servomotors can drive the sliding connection piece 6 to slide along the length direction of the support frame 4 when performing reverse synchronous motion.

Optionally, the second driving structure 8 includes a second servo motor and a second driving gear, the second servo motor is fixedly connected with the mounting member 5, the second driving gear is coaxially fixed with a motor shaft of the second servo motor, the sliding connection member 6 is provided with teeth engaged with the second driving gear and extending along a length direction of the sliding connection member 6, and the second servo motor can drive the mounting member 5 to slide along the sliding connection member 6 when running.

In this embodiment, the first driving structure 7 and the second driving structure 8 may also be, for example, a screw-nut structure driven by a motor or a traction structure in which a winch is matched with a traction rope, which is also within the scope of the present invention.

In some embodiments of the present invention, the supporting frame 4 is adapted to be detachably connected to the positioning structure of at least one of the jig module 1 and the board 2 to be tested. Taking the jig module 1 as a board card to be tested, taking the jig module as an example, and taking the clamping board 2 to be tested as the jig module, the positioning structure can be a positioning pin of the board card to be tested, and the support frame 4 is detachably connected with the positioning pin in a plugging fit mode.

In this embodiment, the support frame 4 is connected to the positioning structure, so that the support frame 4 can be conveniently fixed; in addition, positioning can be conveniently performed, for example, when the target position is determined, the control module establishes a coordinate system by taking the positioning structure as a reference, and the coordinates of the target position are determined based on the position relationship between at least one of the jig module 1 and the card board 2 to be tested and the positioning structure and the engineering file.

In addition, carry out detachable connection with support frame 4 and location structure, can be after accomplishing the centering, can demolish the support frame 4 and location structure's connection to avoid influencing the product testing process.

Referring to fig. 1, in an alternative scheme, the supporting frame 4 is disposed on a supporting structure of the jig module 1 or the board to be tested 2, the sliding connection piece 6 and the mounting piece 5 are located between the jig module 1 and the board to be tested 2, for example, the FCT test jig alignment verification device 3 is applied to the FCT test jig, the jig module 1 is the board to be tested, the board to be tested 2 is the jig module, and then the supporting frame 4 is disposed on the downloading board or the upper pressing module. The scheme has the advantage of small occupied space, and the whole disassembly is required after the alignment is completed.

In another alternative, the supporting frame 4 is disposed outside the supporting structure of the jig module 1 or the board 2 to be tested, and the moving path of the sliding connection piece 6 and the mounting piece 5 passes through between the jig module 1 and the board 2 to be tested. After the scheme is aligned outside the city, the test can be directly performed by moving the sliding connection piece 6 and the mounting piece 5 outside the area between the jig module 1 and the clamping plate 2 to be tested, and the disassembly is not needed.

Optionally, the image acquisition module includes first camera 12 and second camera 121, and first camera 12 and second camera 121 are installed in installed 5, and first camera 12 is used for gathering the image information of tool module 1, and the region that first camera 12 gathered includes at least one side of tool module 1 orientation cardboard 2 that awaits measuring, and second camera 121 is used for gathering the image information of cardboard 2 that awaits measuring, and the region that second camera 121 gathered includes at least one side of cardboard 2 that awaits measuring orientation tool module 1. In this embodiment, the first camera 12 and the second camera 121 can move along with the mounting piece 5, and perform image acquisition between the jig module 1 and the board 2 to be tested, so that it is easier to accurately acquire images of the jig module 1 and the board 2 to be tested.

Optionally, the image acquisition module includes a first camera 12 and a second camera 121, the first camera 12 and the second camera 121 are both fixedly disposed on the support frame 4, and the lens of the first camera 12 faces the fixture module 1, and the lens of the second camera 121 faces the card board 2 to be tested.

According to the FCT test fixture alignment verification device 3 provided by the embodiment of the invention, the alignment verification of whether the fixture module 1 and the clamping plate 2 to be tested are aligned in the vertical direction is realized through the scheme, the FCT test fixture alignment verification device has the advantages of easiness in operation, verification efficiency improvement and verification accuracy improvement, and component damage caused by an alignment error can be effectively prevented.

In some embodiments of the present invention, the alignment module 9 is a laser range finder, and the alignment module 9 is adapted to collect distance information from the first laser emitting end 10 and the second laser emitting end 11 to the laser irradiation point. In this embodiment, support may be provided for determining the horizontal state of the target component in the jig module 1 and/or the board 2 to be tested by collecting the distance information.

Optionally, the control module is electrically connected with the alignment module 9, and the control module is further configured to: and determining the horizontal state information of the target components in the jig module 1 and/or the to-be-tested clamping plate 2 based on the distance information acquired by the alignment module 9 at least three target positions, wherein at least one target position in the at least three target positions is not collinear with the rest target positions.

Referring to fig. 4, taking the board 2 to be tested as a jig module and the connector fixing member 13 on the jig module as a target component for determining the horizontal state, the position of the connector fixing member 13 near the lower part of four corners can be used as a target position, and the horizontal state information of the connector fixing member 13 can be determined by the distance information of the four target positions.

In this embodiment, the distance information collected at least three target positions, and at least one target position of the at least three target positions is not collinear with the rest of the target positions, so as to avoid the problem that when one or two target positions are selected, a connecting line or a single point corresponding to the target positions on the target component is exactly located at a center line or a center point of the angle deviation of the target component, so that the detection result is inaccurate.

In the determination of the horizontal state, the determination is not limited to the determination based on whether or not the distance information of each target position is the same, and for example, when the surface on which the laser irradiation point is located is an inclined surface, the determination of the inclination angle of the surface on which the laser irradiation point is located may be determined based on the distance information of each target position.

Optionally, the control module is electrically connected with the display module, and the control module is further configured to: and controlling the display module to display the horizontal state information. The operator can intuitively judge the state of the target component according to the horizontal state information displayed by the display module.

In this embodiment, by determining the horizontal state information of the target component in the jig module 1 and/or the board to be tested 2, it is convenient for an operator to determine whether the target component is inclined according to the horizontal state information of the target component, so as to further improve the accuracy of alignment verification and prevent the damage of the component caused by the inclination of the target component.

As shown in fig. 5, in some embodiments of the present invention, the FCT test fixture alignment verification device 3 further includes:

the calibration plate 14 is fixedly connected with the support frame 4 and is arranged along the second direction, and a positioning line 15 along the second direction is arranged on one side, close to the sliding connection piece 6, of the calibration plate 14;

the calibration module is fixedly arranged on the mounting piece 5, the calibration module is a laser range finder, the calibration module is provided with a third laser transmitting end 16 and a fourth laser transmitting end 17 which are arranged along the second direction, the third laser transmitting end 16 and the fourth laser transmitting end 17 face the first direction, laser transmitted by the third laser transmitting end 16 and the fourth laser transmitting end 17 irradiates on the position of a positioning line 15 of the standard plate, and the calibration module is suitable for collecting distance information from the third laser transmitting end 16 and the fourth laser transmitting end 17 to the calibration plate 14.

In the present embodiment, whether the mount 5 is inclined in the vertical direction can be determined by the relative positions of the irradiation points of the laser light emitted from the third laser light emitting end 16 and the fourth laser light emitting end 17 and the positioning line 15.

Specifically, when the irradiation points of the laser light emitted from the third laser light emitting end 16 and the fourth laser light emitting end 17 are located at the position of the positioning line 15 of the standard board, it is determined that the mount 5 is not inclined in the vertical direction; determining that the mount 5 is rotationally tilted about the second direction when the irradiation points of the laser light emitted from the third laser light emitting end 16 and the fourth laser light emitting end 17 are located at positions above or below the positioning line 15 of the standard board; when the irradiation points of the laser light emitted from the third laser emitting end 16 and the fourth laser emitting end 17 are disposed on both upper and lower sides of the alignment line 15 of the standard board, or when only one of the irradiation points of the laser light emitted from the third laser emitting end 16 and the fourth laser emitting end 17 is disposed on the standard line, it is determined that the mount 5 is rotationally tilted about the first direction.

In the present embodiment, whether the mount 5 is inclined in the horizontal direction can be determined by the distance information of the third laser emitting end 16 and the fourth laser emitting end 17 to the calibration plate 14.

Specifically, when the distance information from the third laser emitting end 16 and the fourth laser emitting end 17 to the calibration plate 14 is equal, it is determined that the mount 5 is not inclined in the horizontal direction; when the distance information from the third laser emitting end 16 and the fourth laser emitting end 17 to the calibration plate 14 is equal, it is determined that the mount 5 is inclined in the horizontal direction.

Optionally, the control module is in signal connection with the calibration module, and the control module is used for: the control display module displays distance information of the third laser emitting end 16 and the fourth laser emitting end 17 to the calibration plate 14.

Optionally, the control module is in signal connection with the calibration module, and the control module is used for: the horizontal tilt state information of the mount 5 is determined based on the distance information of the third laser emitting end 16 and the fourth laser emitting end 17 to the calibration plate 14, and the display module is controlled to display the horizontal tilt state information of the mount 5.

Through the scheme, operators can find whether the angle abnormality occurs in the mounting piece 5 and the alignment module 9 on the mounting piece 5 in time, so that the operators can adjust in time, and the accuracy of alignment verification is improved.

Referring to fig. 6, optionally, the workflow of the FCT test fixture alignment verification device 3 in the process of performing alignment verification of the FCT test fixture according to the embodiment of the present invention includes: opening a test fixture and installing a test board card; acquiring a target position of a target component through an engineering file; starting an FCT test fixture alignment verification device, correcting position information, when the position information is abnormal, correcting by a fixture maintainer according to the abnormal information, returning to the step of acquiring the target position of the target part through an engineering file, when the position information is normal, acquiring horizontal state information of the target part, displaying the horizontal state information through a display screen, when the horizontal state information is abnormal, correcting by the fixture maintainer according to the abnormal information, returning to the step of acquiring the target position of the target part through the engineering file, when the horizontal state information is normal, repeating the steps to correct the position information and the horizontal state of other target parts until all target parts are detected, removing the FCT test fixture alignment verification device 3, pressing a test board card through a fixture module, and repeating the steps if the abnormality exists, and completing alignment verification work if the abnormality exists.

Of course, the alignment verification device 3 of the FCT test fixture in the embodiment of the present invention may be used for test fixtures with other similar structures, and not only used in the PCBA field of server motherboard products, but also applied in fields such as automotive electronics, etc., and the application manner in other test fixtures may refer to the above, and will not be repeated here.

The following describes a control method of the FCT test fixture alignment verification device 3 provided by the present invention with reference to fig. 7, and the control method of the FCT test fixture alignment verification device 3 described below and the FCT test fixture alignment verification device 3 described above may be referred to correspondingly.

According to the embodiment of the invention, the control method of the FCT test fixture alignment verification device 3 comprises the following steps:

s100, driving the alignment module 9 to move to a target position;

s200, controlling the alignment module 9 to emit laser towards the jig module 1 and the clamping plate 2 to be tested respectively;

s300, controlling an image acquisition module to acquire image information of laser irradiation positions of the first laser emission end 10 and the second laser emission end 11, and controlling a display module to display the image information.

In some embodiments of the present invention, before the step of driving the alignment module 9 to move to the target position, the method further includes:

s101, determining target position information based on engineering files of the jig module 1 and the clamping plate 2 to be tested, and sending the target position information to a driving module.

In some embodiments of the present invention, the step of driving the alignment module 9 to move to the target position includes:

driving the alignment module 9 to move to at least three target positions, wherein at least one target position of the at least three target positions is not collinear with the rest of the target positions;

the control method further comprises the following steps:

s400, controlling an alignment module 9 to detect the distance information from the first laser emission end 10 and/or the second laser emission end 11 to the laser irradiation point;

s500, determining the horizontal state information of the target components in the jig module 1 and/or the card board 2 to be tested based on the distance information measured by the alignment module 9 at least three target positions.

Optionally, the control method further includes:

s600, controlling the display module to display the horizontal state information.

Fig. 8 illustrates a physical structure diagram of an electronic device, as shown in fig. 8, which may include: processor 18, communication interface (Communications Interface) 19, memory (memory) 20 and communication bus 21, wherein processor 18, communication interface 19, memory 20 accomplish the communication between each other through communication bus 21. The processor 18 may invoke logic instructions in the memory 20 to execute a control method of the FCT test fixture alignment verification device 3, the method comprising:

s100, driving the alignment module 9 to move to a target position;

s200, controlling the alignment module 9 to emit laser towards the jig module 1 and the clamping plate 2 to be tested respectively;

s300, controlling an image acquisition module to acquire image information of laser irradiation positions of the first laser emission end 10 and the second laser emission end 11, and controlling a display module to display the image information.

Further, the logic instructions in the memory 20 described above may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

In another aspect, the present invention also provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, are capable of executing the control method of the FCT test jig alignment verification apparatus 3 provided by the methods described above, the method comprising:

s100, driving the alignment module 9 to move to a target position;

s200, controlling the alignment module 9 to emit laser towards the jig module 1 and the clamping plate 2 to be tested respectively;

s300, controlling an image acquisition module to acquire image information of laser irradiation positions of the first laser emission end 10 and the second laser emission end 11, and controlling a display module to display the image information.

In still another aspect, the present invention further provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the above-mentioned control method of the FCT test jig alignment verification apparatus 3, the method comprising:

s100, driving the alignment module 9 to move to a target position;

s200, controlling the alignment module 9 to emit laser towards the jig module 1 and the clamping plate 2 to be tested respectively;

s300, controlling an image acquisition module to acquire image information of laser irradiation positions of the first laser emission end 10 and the second laser emission end 11, and controlling a display module to display the image information.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (12)

1. The utility model provides a FCT test fixture counterpoint verifying attachment for carry out the counterpoint verification of tool module and test card board in the FCT test fixture, its characterized in that includes:

the alignment module is provided with a first laser emission end and a second laser emission end, the first laser emission end is used for emitting laser to the jig module, the second laser emission end is used for emitting laser to the clamping plate to be tested, and the laser emitted by the first laser emission end is collinear with the laser emitted by the second laser emission end;

the image acquisition module is used for acquiring image information of laser irradiation positions of the first laser emission end and the second laser emission end;

the driving module is connected with the alignment module and used for driving the alignment module to move, and at least part of moving paths of the alignment module are positioned between the jig module and the clamping plate to be tested;

the display module is in signal connection with the image acquisition module and is used for displaying the image information acquired by the image acquisition module.

2. The FCT test fixture alignment verification device of claim 1, further comprising:

the control module is electrically connected with the image acquisition module, the display module and the driving module and is used for:

determining a target position based on a pre-stored engineering file of the jig module and/or the to-be-tested clamping plate, and controlling the alignment module to move to the target position through the driving module;

and controlling the display module to display the image information acquired by the image acquisition module.

3. The FCT test fixture alignment verification device of claim 1, wherein the drive module comprises:

a support frame;

the mounting piece is movably arranged on the supporting frame, and the alignment module is arranged on the mounting piece;

and the driving assembly is connected with the mounting piece and is suitable for driving the mounting piece to move along the supporting frame.

4. The FCT test fixture alignment verification apparatus of claim 3, wherein the drive assembly comprises:

the sliding connection piece is in sliding connection with the support frame along a first direction, and the mounting piece is in sliding connection with the sliding connection piece along a second direction;

a first drive structure connected to the slip joint;

a second driving structure connected with the sliding connection piece;

wherein the first direction is perpendicular to the second direction.

5. The FCT test fixture alignment verification device of claim 4, wherein the support frame is adapted to be detachably connected to a positioning structure of at least one of the fixture module and the board under test.

6. The alignment verification device of an FCT test fixture of any one of claims 3 to 5, wherein,

the image acquisition module comprises a first camera and a second camera;

the first camera and the second camera are mounted on the mounting piece;

the first camera is used for collecting image information of the jig module, and the area collected by the first camera at least comprises one side, facing the clamping plate to be tested, of the jig module;

the second camera is used for collecting image information of the clamping plate to be tested, and the area collected by the second camera at least comprises one side, facing the jig module, of the clamping plate to be tested.

7. The FCT test fixture alignment verification device of claim 2, wherein the alignment module is a laser rangefinder, the laser rangefinder is provided with the first laser emission end and the second laser emission end, and the laser rangefinder is used for gathering distance information from the first laser emission end and the second laser emission end to a laser irradiation point.

8. The FCT test fixture alignment verification device of claim 7, wherein the control module is further electrically connected to the alignment module, the control module further configured to: and determining the horizontal state information of the jig module and/or the target component in the to-be-tested clamping plate based on the distance information acquired by the alignment module at least three target positions, wherein at least one of the at least three target positions is not collinear with the rest of the target positions.

9. A control method of the FCT test fixture alignment verification apparatus according to any one of claims 1 to 8, comprising:

driving the alignment module to move to a target position;

controlling the alignment module to emit laser towards the jig module and the clamping plate to be tested respectively;

and controlling an image acquisition module to acquire image information of laser irradiation positions of the first laser emission end and the second laser emission end, and controlling a display module to display the image information.

10. The method of claim 9, further comprising, prior to the step of driving the alignment module to a target position:

and determining target position information based on the tool module and the engineering file of the clamping plate to be tested, and sending the target position information to the driving module.

11. The control method according to claim 9 or 10, characterized in that the step of driving the alignment module to move to a target position includes:

driving the alignment module to move to at least three target positions, wherein at least one target position in the at least three target positions is not collinear with the rest of target positions;

the control method further includes:

controlling the alignment module to detect the distance information from the first laser emission end and/or the second laser emission end to the laser irradiation point;

and determining the horizontal state information of the jig module and/or the target component in the to-be-tested clamping plate based on the distance information measured by the alignment module at least three target positions.

12. The control method according to claim 11, characterized by further comprising:

and controlling the display module to display the horizontal state information.