CN107807322B - Touch control chip simulation pressing test fixture - Google Patents
Touch control chip simulation pressing test fixture Download PDFInfo
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- CN107807322B CN107807322B CN201710884123.XA CN201710884123A CN107807322B CN 107807322 B CN107807322 B CN 107807322B CN 201710884123 A CN201710884123 A CN 201710884123A CN 107807322 B CN107807322 B CN 107807322B
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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
- G01R31/2851—Testing of integrated circuits [IC]
- G01R31/2886—Features relating to contacting the IC under test, e.g. probe heads; chucks
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Abstract
The invention discloses a touch chip simulation pressing test fixture which is used for matching with a testing machine and a plurality of groups of test probes electrically connected with the testing machine to perform electrical test on a chip board under a pressing condition; the second testing module comprises a plurality of conductive soft bodies arranged in a matrix, soft body fixing pieces used for fixing the plurality of conductive soft bodies and a first vertical driving mechanism, each conductive soft body corresponds to one touch chip, the first vertical driving mechanism is used for driving the soft body fixing pieces and the plurality of conductive soft bodies to move up and down so that the plurality of conductive soft bodies are in contact connection or separation with corresponding sensing areas on the touch chips, and the second testing module can move transversely relative to the carrier disc module so that the second testing module is positioned in the corresponding testing area of the chip board.
Description
Technical Field
The invention relates to the field of chip testing, in particular to a touch chip simulation pressing test fixture.
Background
The fingerprint encryption chip is a chip product embedded with a fingerprint identification technology, can realize image acquisition, feature extraction and feature comparison of fingerprints on a chip, and can conveniently realize the function of fingerprint encryption. In 2013, in 9 months, the smart phone iPhone 5S with the fingerprint identification function is on the market, so that the popularization and application of the fingerprint identification function in the field of smart phones are rapidly driven, and then mainstream smart phones supporting the fingerprint encryption function are gradually pushed out by mainstream smart phone manufacturers such as Samsung, Huacheng, VIVO, OPPO, charm and the like. In recent years, under the background of great support of Internet and concept, the domestic Internet technology is developed vigorously, the rapid development of mobile Internet technology and intelligent terminals is driven, and mobile payment is integrated with the life of people. Fingerprint encryption payment is the cross-domain deep fusion of biometric identification technology and financial payment, and the novel payment mode of people is gradually changed. The smart phone fingerprint encryption chip also becomes the standard configuration of the smart phone, the demand of the smart phone fingerprint encryption chip is synchronously increased under the drive of the demand of the smart phone, the goods output of the smart phone in China reaches 5.84 hundred million parts in 2016 incomplete statistics, and meanwhile, the smart phone manufacturer in China continues to keep 10% -30% of the increase potential.
2016 is a year old in the development of fingerprint encryption chips of domestic smart phones, the fingerprint encryption chips adopt a brand-new Strip packaging process (Strip), a Sense (induction) area is distributed on the surfaces of the chips, the test before and after finger pressing needs to be simulated during the test, the existing semiconductor mature equipment cannot be directly compatible for the test, and huge technical challenges are brought to the test scale.
The current testing method mainly comprises the following steps: 1. manually pasting the sulfur-free paper on the jig; 2. manually pasting a test product (Strip) on the jig; 3. measuring the thickness of the jig manually; 4. carrying out an electrical test on the test product under a non-pressing condition through a test machine; 5. manually tearing off the test product from the jig; 6. manually pasting a conductive colloid on the jig; 7. manually pasting a test product on the jig; 8. measuring the thickness of the jig manually; 9. carrying out an electrical test on the test product under a pressing condition by using a test machine; 10. performing ink dotting operation on a corresponding test product; 11. and tearing off the test product from the jig by manpower. The testing method comprises 8 manual working procedures, the probability of quality abnormity is increased undoubtedly, the efficiency is low, and meanwhile, the labor cost is high and the production requirement cannot be met.
Disclosure of Invention
One objective of the present invention is to provide a fixture for testing a touch chip by simulating pressing, which is used in cooperation with a testing machine and a plurality of sets of test probes, so as to greatly reduce or even avoid manual intervention, reduce the probability of abnormal quality, improve testing efficiency, and greatly reduce labor cost.
The second objective of the present invention is to provide a fixture for testing a touch chip by simulating pressing, which is used in cooperation with a testing machine and a plurality of sets of test probes, so as to greatly reduce or even avoid the participation of workers, reduce the probability of abnormal quality, improve the testing efficiency, and greatly reduce the expenditure of labor cost.
In order to achieve one of the above objects, the present invention provides a touch chip simulation pressing test fixture, which is used to cooperate with a testing machine and a plurality of groups of test probes electrically connected to the testing machine to perform an electrical test on a chip board under a pressing condition, wherein the chip board is provided with a plurality of touch chips arranged in a matrix, the plurality of touch chips are transversely divided into a plurality of test areas, the touch chip simulation pressing test fixture comprises a tray module and a second test module, and the tray module is used to carry and position the chip board; the second testing module comprises a plurality of conductive soft bodies arranged in a matrix, soft body fixing pieces used for fixing the plurality of conductive soft bodies and a first vertical driving mechanism, each conductive soft body corresponds to one touch chip, the first vertical driving mechanism is used for driving the soft body fixing pieces and the plurality of conductive soft bodies to move up and down so that the plurality of conductive soft bodies are in contact connection or separation with corresponding sensing areas on the touch chips, and the second testing module can move transversely relative to the carrier disc module so that the second testing module is positioned in the corresponding testing area of the chip board.
Preferably, a plurality of through holes are formed in the carrier module, the through holes being arranged in a matrix and corresponding to the plurality of touch chips of the chip board.
Preferably, the tray-carrying module includes a tray-carrying member and a cover plate, the tray-carrying member has a plurality of through holes formed therein, the cover plate has a plurality of through holes formed therein corresponding to the through holes, the tray-carrying member is configured to carry the chip board, and the cover plate is configured to be positioned and cover the tray-carrying member and the chip board.
Preferably, the tray carrying module further comprises two pressing plates and a plurality of rollers, the rollers are respectively connected to two opposite side walls of the cover plate, the two pressing plates are respectively arranged on two opposite sides of the tray carrying piece in a transversely sliding manner, a space for the rollers to move is formed between the inner side of the bottom wall of the two pressing plates and the tray carrying piece, a plurality of notches corresponding to the rollers are formed in the inner sides of the two pressing plates, the two pressing plates are in press connection with the rollers to position the cover plate, and the two pressing plates slide to the plurality of notches and are respectively opposite to the corresponding rollers to take out the cover plate.
Preferably, the carrying disc piece comprises a carrying disc mounting plate and a carrying disc positioned on the carrying disc mounting plate, the carrying disc mounting plate is provided with a first window extending transversely, a plurality of through holes are formed in the carrying disc and are opposite to the first window, two ends of the carrying disc are supported on the carrying disc mounting plate and are pressed by two positioning frames, and two sides of the two positioning frames are fixedly connected to the carrying disc mounting plate respectively.
Preferably, the soft fixing member includes a bearing seat and a plurality of mounting posts arranged in a matrix, the bearing seat is provided with a plurality of positioning holes for correspondingly mounting the mounting posts, and one end of each mounting post is respectively provided with a soft mounting hole for mounting the conductive soft member.
Preferably, the plurality of positioning holes vertically penetrate through the bearing seat, a resisting plate is arranged on one side of the bearing seat far away from the conductive soft body, each mounting column can be mounted in the corresponding positioning hole in a limited manner in a vertically moving manner, and a buffering elastic piece is arranged between the other end of each mounting column and the resisting plate respectively.
Preferably, the other end of each mounting post protrudes outward to form a step portion, and each positioning hole is stepped to stop the step portion, so as to limit the stroke of the mounting post.
Preferably, the conductive soft body is a conductive colloid.
Preferably, the test device further comprises a first transverse driving mechanism for driving the second test module to move transversely.
Preferably, the tray loading module, the second test module and the first transverse driving mechanism are driven to integrally move transversely.
In order to achieve the second purpose, the invention provides a touch chip simulation pressing test fixture, which is arranged on a machine table and is used for matching a test machine and a plurality of groups of test probes electrically connected with the test machine to perform electrical test on a chip board under a pressing condition, wherein a plurality of touch chips arranged in a matrix are distributed on the chip board, the plurality of touch chips are transversely divided into a plurality of test areas, the touch chip simulation pressing test fixture comprises a base, a carrying disc module, a second test module, a first transverse driving mechanism and a second transverse driving mechanism, and the carrying disc module is arranged above the base in a hanging manner through a supporting piece and is used for carrying and positioning the chip board; the second testing module is arranged below the carrying disc module and supported on the base, the second testing module comprises a plurality of conductive soft bodies arranged in a matrix manner, soft fixing pieces used for fixing the conductive soft bodies and a first vertical driving mechanism, each conductive soft body corresponds to one touch chip, and the first vertical driving mechanism is used for driving the soft fixing pieces and the conductive soft bodies to move up and down so as to enable the conductive soft bodies to be in pressure joint with or separated from corresponding sensing areas on the touch chips; the first transverse driving mechanism is arranged on the base and used for driving the second testing module to transversely move so as to enable the second testing module to be positioned in the corresponding testing area of the chip board; the second transverse driving mechanism is used for driving the base and the carrying disc module, the second testing module and the first transverse driving mechanism which are arranged on the base to integrally and transversely move so that the plurality of testing probes are positioned in the corresponding testing areas of the chip board.
Preferably, a plurality of through holes are formed in the carrier module, the through holes being arranged in a matrix and corresponding to the plurality of touch chips of the chip board.
Preferably, the first vertical driving mechanism is arranged below the soft fixing member and comprises a mounting plate, a cylinder arranged in the middle of the mounting plate, two guide seats arranged on two sides of the mounting plate, a cylinder connecting plate connected to the driving end of the cylinder, and two sliding members connected and fixed to two sides of the bottom surface of the cylinder connecting plate, the soft fixing member is arranged on the cylinder connecting plate, and a sliding mechanism is arranged between the sliding member and the corresponding guide seat to enable the sliding member to move up and down along the corresponding guide seat.
Preferably, the second test module is mounted on the first lateral driving mechanism.
Preferably, the first transverse driving mechanism includes a frame transversely installed on the base, a screw is installed inside the frame, two ends of the screw are respectively supported at two ends of the frame, a slider is installed inside the frame, the slider is screwed on the screw, one end of the screw extends out of the frame and is connected to the driver, the slider can transversely slide along the screw under the driving of the driver, and the second testing module is fixedly connected to the slider to be driven to transversely move.
Preferably, the base is installed on the second transverse driving mechanism, and the second transverse driving mechanism is installed on the machine table.
Preferably, a sensor chip is connected to one side of the second testing module, and a sensor corresponding to the sensor chip is disposed at a corresponding position of the base so as to cooperate with the second testing module to be positioned in the first testing region of the chip board.
Compared with the prior art, the chip board is borne by the carrying disc module, the second testing module comprises a plurality of conductive soft bodies which can be driven to move up and down, and the second testing module can move transversely relative to the carrying disc module, so that the touch chip simulation pressing testing jig can sequentially realize electrical testing under a non-pressing condition and electrical testing under a pressing condition of a plurality of testing areas of the chip board under the condition of matching with the testing machine and a plurality of groups of testing probes, the manual participation is greatly reduced or even avoided, the probability of quality abnormity is reduced, the testing efficiency is improved, and the expenditure of labor cost is greatly reduced.
Drawings
Fig. 1 is a schematic structural diagram of a touch chip electrical testing apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a fixture for testing simulated pressing of a touch chip according to an embodiment of the invention.
Fig. 3 is a schematic structural view of fig. 2 with the second lateral drive mechanism omitted.
Fig. 4 is a schematic view of the structure of fig. 3 from another view angle.
Fig. 5 is a schematic view of the structure of fig. 3 from a further angle.
Fig. 6 is an exploded view of a disk loading module according to an embodiment of the invention.
FIG. 7 is an exploded view of the soft installation member and the conductive soft bodies according to the embodiment of the present invention.
FIG. 8 is another exploded view of the soft installation member and the conductive soft bodies according to the embodiment of the present invention.
Fig. 9 is a schematic structural diagram of a second test module according to an embodiment of the invention.
Fig. 10 is a schematic structural diagram of a fixing plate and a mounting bracket according to an embodiment of the invention.
Fig. 11 is a schematic structural view of a fixing plate according to an embodiment of the present invention.
Fig. 12 is another structural diagram of the fixing plate according to the embodiment of the present invention.
Fig. 13 is a partially enlarged view of a portion B of fig. 12.
Fig. 14 is a cross-sectional view taken along line a-a of fig. 11.
Detailed Description
In order to explain technical contents, structural features, and effects achieved by the present invention in detail, the following detailed description is given with reference to the embodiments and the accompanying drawings.
The invention is used for electrically testing a chip board (not shown), a plurality of touch control chips which are arranged in a matrix are distributed on the chip board, and the touch control chips are transversely divided into a plurality of testing areas. The touch chip electrical test equipment can be used for carrying out electrical test on the chip board under a no-pressing condition and electrical test under a pressing condition, and is worthy of being noticed that the touch chip electrical test equipment can be suitable for chip boards in various shapes such as a rectangle, a square, a strip and the like; the touch chips are fingerprint encryption chips in this embodiment, and the fingerprint pressing is performed by using a finger, but the touch chips are not limited thereto, and may be other types of touch.
Referring to fig. 1 and 10 to 14, the apparatus for testing electrical properties of a touch chip of the present invention includes a machine 100, a testing machine 200, a first testing module 3 and a touch chip simulation pressing testing fixture, wherein the first testing module 3 is disposed above the carrier module 2, and includes a probe base 30 capable of moving up and down and a plurality of sets of testing probes 31 disposed on the probe base 30 and electrically connected to the testing machine 200, and each set of testing probes 31 is respectively used for contacting with a plurality of pads on a corresponding touch chip to perform an electrical test. Specifically, the first test module 3 includes a fixing plate for fixing the probe holder 30 and a second vertical driving mechanism (not shown) for driving the fixing plate to move up and down; in this embodiment, the second vertical driving mechanism may be selected as a cylinder assembly, but not limited thereto; two vertical plates 32 are fixedly connected to two sides of the fixed plate respectively, two opposite mounting frames 9 are mounted on two sides of the machine table 100 respectively, and the two vertical plates 32 are slidably connected to the inner sides of the two mounting frames 9 through a sliding mechanism; the fixing plate comprises a main tray 33, a sub-tray 34 and a pressure welding disc 35, two sides of the main tray 33 are respectively connected to two vertical plates 32, a second window 331 which penetrates through the main tray 33 from top to bottom is formed in the middle of the main tray 33, the sub-tray 34 is supported on the main tray 33, and the middle of the sub-tray 34 is located at the second window 331; a third window 341 is formed in the middle of the sub-tray 34, the probe holder 30 is supported on the sub-tray 34, and the plurality of groups of probes 31 on the probe holder 30 are located at the third window 341; the pressure welding disc 35 is pressed on the main tray 33 and the probe seat 30 to ensure that the probe seat 30 is stably installed; it should be noted that the above only provides a specific structure of the mounting probe base 30 for the present embodiment, and should not be limited thereto.
Referring to fig. 1 to 5, the touch chip simulation pressing test fixture is mounted on a machine 100, and includes a base 1, a tray module 2, a first test module 3, a second test module 4, a first transverse driving mechanism 5, and a second transverse driving mechanism 6, wherein the tray module 2 is suspended above the base 1 through a support 11 for supporting and positioning a chip board; the second testing module 4 is arranged below the carrying disc module 2 and supported on the base 1, the second testing module 4 comprises a plurality of conductive soft bodies 41 arranged in a matrix manner, soft fixing members 42 for fixing the conductive soft bodies 41 and first vertical driving mechanisms 43, each conductive soft body 41 corresponds to one touch chip, and the first vertical driving mechanisms 43 are used for driving the soft fixing members 42 and the conductive soft bodies 41 to move up and down so as to enable the conductive soft bodies 41 to be in pressure joint with or separated from the sensing areas on the corresponding touch chips; the first transverse driving mechanism 5 is arranged on the base 1 and used for driving the second testing module 4 to transversely move so as to enable the second testing module 4 to be positioned in the corresponding testing area of the chip board; the second transverse driving mechanism 6 is used for driving the base 1 and the tray carrying module 2, the second testing module 4 and the first transverse driving mechanism 5 which are arranged on the base 1 to integrally and transversely move so as to enable the first testing module 3 to be positioned at the corresponding testing area of the chip board. It should be noted that the above-mentioned touch chip simulation pressing test fixture is only a preferred embodiment of the present invention, and the present invention is not limited to the above-mentioned specific implementation manner, for example, the first test module may also be disposed at the lower side of the tray module, and correspondingly, the second test module is disposed at the upper side of the tray module, and it is not necessarily achieved by driving the second test module 4 to move laterally and driving the base 1 and the tray module 2, the second test module 4 and the first lateral driving mechanism 5 disposed on the base 1 to move laterally as a whole to move the first test module 3 and the second test module 4 to the corresponding test areas. In the present embodiment, the conductive soft body 41 is a conductive adhesive, and is suitable for simulating the pressing action of fingers, but can also be used for simulating the contact of other touch objects. In this embodiment, a sensor chip 71 is connected to one side of the second testing module 4, and a sensor 72 corresponding to the sensor chip 71 is disposed at a corresponding position of the base 1 to cooperate with positioning the second testing module 4 at a first testing region of the chip board. In the present embodiment, the testing machine 200 is suspended on the machine 100 and located right above the probe seat 30 by the supporting frame 201; the testing machine 200 is electrically connected to a plurality of sets of test probes 31 (shown in fig. 13 and 14) through conductive wires 202. In addition, in the embodiment, the touch chip electrical testing apparatus further includes a camera 81 for monitoring the testing process in real time and a display device 82 for displaying images.
Referring to fig. 3 and 6, a plurality of through holes 20 are formed in the carrier module 2 and are arranged in a matrix and correspond to a plurality of touch chips of the chip board; specifically, the tray carrying module 2 comprises a tray carrying part and a cover plate 22, wherein a plurality of through holes 20 are formed in the tray carrying part, a plurality of through holes 221 corresponding to the through holes 20 are formed in the cover plate 22, the tray carrying part is used for carrying a chip board, and the cover plate 22 is used for positioning and covering the tray carrying part and the chip board, so that the chip board can be reliably positioned on the tray carrying part; the tray carrying module 2 further comprises two pressing plates 23 and a plurality of rollers 24, the rollers 24 are respectively connected to two opposite side walls of the cover plate 22, the two pressing plates 23 are respectively arranged on two opposite sides of the tray carrying piece in a transversely sliding manner, a space for the rollers 24 to move is formed between the inner sides of the bottom walls of the two pressing plates 23 and the tray carrying piece, a plurality of gaps 231 corresponding to the rollers 24 are formed in the inner sides of the two pressing plates 23, the two pressing plates 23 are pressed on the rollers 24 to position the cover plate 22, the two pressing plates 23 slide to the positions, corresponding to the rollers 24, of the gaps 231 to be respectively aligned with the corresponding rollers 24 to take out the cover plate 22, so that the cover plate 22 can be well positioned, and the cover plate 22 can be conveniently detached; the two pressing plates 23 are respectively connected with a pressing plate driving mechanism 232 to realize automatic operation of moving and positioning the two pressing plates 23, in this embodiment, one end of each of the two pressing plates 23 is respectively connected with a cylinder assembly as the pressing plate driving mechanism 232, and the two cylinder assemblies are respectively installed at the end parts of the two opposite sides of the carrying disc assembly; the outer sides of the bottom walls of the two pressing plates 23 are respectively provided with a plurality of sliding blocks 25 which are transversely arranged, two opposite sides of the disk carrying piece are provided with two sliding rails 26, and the plurality of sliding blocks 25 are slidably arranged on the corresponding sliding rails 26; the tray loading piece comprises a tray loading mounting plate 27 and a tray 28 positioned on the tray loading mounting plate 27, the tray loading mounting plate 27 is provided with a first window 271 extending transversely, a plurality of through holes 20 are formed in the tray loading plate 28 and are opposite to the first window 271, two ends of the tray loading plate 28 are supported on the tray loading mounting plate 27 and are pressed by two positioning frames 29, two sides of the two positioning frames 29 are fixedly connected to the tray loading mounting plate 27 respectively, and therefore the tray loading plate 28 is stably fixed on the tray loading mounting plate 27.
Referring to fig. 7 and 8, in the present embodiment, the soft fixing member 42 includes a bearing seat 421 and a plurality of mounting posts 422 arranged in a matrix, the bearing seat 421 is provided with a plurality of positioning holes 4211 for correspondingly mounting the plurality of mounting posts 422, and the top end of each mounting post 422 is respectively provided with a soft mounting hole 4221 for mounting the conductive soft body 41; specifically, a plurality of positioning holes 4211 vertically penetrate through the bearing seat 421, a resisting plate 423 is disposed on one side of the bearing seat 421 away from the conductive soft body 41, each mounting column 422 can be limitedly and vertically installed in the corresponding positioning hole 4211, and a buffering elastic member 424 is disposed between the bottom end of each mounting column 422 and the resisting plate 423; the lower portion of each mounting post 422 is formed with a step 4222 protruding outward, and each positioning hole 4211 is stepped to stop the corresponding step 4222 to limit the stroke of the mounting post 422.
Referring to fig. 3 and 9, specifically, the first vertical driving mechanism 43 is disposed below the flexible fixing member 42, and includes a mounting plate 431, a cylinder 432 installed in the middle of the mounting plate 431, two guide seats 433 installed on both sides of the mounting plate 431, a cylinder connecting plate 434 connected to a driving end of the cylinder 432, and two sliding members 435 connected and fixed to both sides of a bottom surface of the cylinder connecting plate 434, the flexible fixing member 42 is installed on the cylinder connecting plate 434, and a sliding mechanism is disposed between the sliding members 435 and the corresponding guide seats 433 so that the sliding members 435 can move up and down along the corresponding guide seats 433. In this embodiment, the sliding mechanism includes a slide rail 436 fixed to the guide base 433 and a slider 437 fixed to the slider 435; the bearing seat 421 and the abutting plate 423 are mounted on the cylinder connecting plate 434, but the abutting plate 423 may be integrated with the cylinder connecting plate 434.
Referring to fig. 3 to 5, specifically, the second testing module 4 is mounted on the first transverse driving mechanism 5; the first transverse driving mechanism 5 comprises a frame body 51 transversely installed on the base 1, a screw 52 is arranged on the inner side of the frame body 51, two ends of the screw 52 are respectively supported at two ends of the frame body 51, a sliding block 53 is installed in the frame body 51, the sliding block 53 is spirally arranged on the screw 52, one end of the screw 52 extends out of the frame body 51 and is connected to a driver 54, the sliding block 53 can transversely slide along the screw 52 under the driving of the driver 54, and the second testing module 4 is fixedly connected to the sliding block 53 to be driven to transversely move. In the present embodiment, the driver 54 is a motor; the bottom of the mounting plate 431 of the first vertical driving mechanism 43 is provided with a slide block 438, and the second testing module 4 is fixedly connected to the slide block 53 through the slide block 438.
Referring to fig. 1, the base 1 is installed on the second transverse driving mechanism 6, and the second transverse driving mechanism 6 is installed on the machine 100, in this embodiment, the second transverse driving mechanism 6 has a similar specific structure to the first transverse driving mechanism 5, and will not be described herein.
The following describes the testing method by taking the touch chip electrical testing apparatus of the present embodiment as an example:
mounting the chip board on the disk carrying module 2;
the base 1 and the tray loading module 2, the second test module 4 and the first transverse driving mechanism 5 on the base 1 are driven by the second transverse driving mechanism 6 to integrally and transversely move so that the first test module 3 is positioned in a first test area of the chip board;
driving the second testing module 4 to move transversely through the first transverse driving mechanism 5 so as to position the second testing module 4 at a first testing area of the chip board;
the probe seat 30 is driven by the second vertical driving mechanism to move downwards so that each group of test probes 31 respectively and correspondingly contact with a plurality of welding spots on the corresponding touch chip to further perform electrical test on the touch chip under a no-press condition;
the first vertical driving mechanism 43 drives the plurality of conductive soft bodies 41 to move upwards so as to be in pressure connection with the sensing area on the corresponding touch chip, and further, the touch chip is subjected to electrical test under a pressing condition;
the probe seat 30 is driven by the second vertical driving mechanism to move upwards so that each group of test probes 31 are separated from a plurality of welding points on the corresponding touch chip respectively, and the plurality of conductive soft bodies 41 are driven by the first vertical driving mechanism 43 to move downwards so as to be separated from the sensing area on the corresponding touch chip;
the base 1 and the tray loading module 2, the second test module 4 and the first transverse driving mechanism 5 on the base 1 are driven by the second transverse driving mechanism 6 to integrally move transversely so that the first test module 3 is positioned in the next test area of the chip board;
driving the second testing module 4 to move transversely through the first transverse driving mechanism 5 so as to position the second testing module 4 at the next testing area of the chip board;
repeating the above actions until the test of the last test area of the chip board is completed; then, the probe seat 30 and the plurality of conductive soft bodies 41 are separated from the touch chip, and then the base 1 and the related structures thereon are driven by the second transverse driving mechanism 6 to leave the test area as a whole, so as to facilitate the replacement of a new chip board for testing.
Compared with the prior art, the chip board is loaded through the carrying disc module 2, the second testing module 3 comprises the plurality of conductive soft bodies 41 which can be driven to move up and down and can move transversely relative to the carrying disc module 2, so that the touch chip simulation pressing testing jig can sequentially realize the electrical test under the non-pressing condition and the electrical test under the pressing condition of a plurality of testing areas of the chip board under the condition of being matched with the testing machine 200 and the first testing module 3, the manual participation is greatly reduced or even avoided, the probability of quality abnormity is reduced, the testing efficiency is improved, and the expenditure of labor cost is greatly reduced.
The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the present invention, which is therefore intended to cover all equivalent changes and modifications within the scope of the present invention. It should be noted that the cylinder connecting plate, the mounting plate, and the like in the above embodiments do not mean that they are an integral structure, and in actual processing, they are often formed by combining two or more plate members.
Claims (14)
1. A touch chip simulation pressing test fixture is used for matching with a testing machine and a plurality of groups of testing probes electrically connected with the testing machine to perform electrical testing under a pressing condition on a chip board, wherein a plurality of touch chips arranged in a matrix are distributed on the chip board, and the plurality of touch chips are transversely divided into a plurality of testing areas, and the touch chip simulation pressing test fixture is characterized by comprising:
the disk carrying module is used for carrying and positioning the chip board;
a second test module, the second test module comprising: a plurality of conductive soft bodies arranged in a matrix, soft body fixing pieces used for fixing the conductive soft bodies and a first vertical driving mechanism, wherein,
each conductive software corresponds to one touch chip respectively;
the first vertical driving mechanism is used for driving the soft fixing piece and the conductive soft bodies to move up and down so that the conductive soft bodies are in contact with or separated from the corresponding sensing areas on the touch chip;
the second test module can move transversely relative to the disk loading module so as to enable the second test module to be positioned in the corresponding test area of the chip board;
a plurality of through holes which are arranged in a matrix manner and correspond to the plurality of touch control chips of the chip board are formed in the carrying disc module;
the tray-carrying module comprises a tray-carrying piece, a cover plate, a plurality of rollers and two pressing plates, wherein,
the disk carrying piece is used for carrying the chip plate, and a plurality of through holes are formed in the disk carrying piece;
the cover plate is used for positioning and covering the disk carrying piece and the chip plate, so that the chip plate is reliably positioned on the disk carrying piece, and a plurality of through holes corresponding to the through holes are formed in the cover plate;
the rollers are respectively connected to two opposite side walls of the cover plate;
two but the clamp plate sets up transversely sliding respectively carry the relative both sides of dish spare, two the diapire inboard of clamp plate with carry and be formed with between the dish spare and supply a plurality of the space that the gyro wheel removed, two the inboard of clamp plate seted up with a plurality of breachs that the gyro wheel corresponds, two the clamp plate crimping is in a plurality of in order to fix a position on the gyro wheel apron, two the diapire outside of clamp plate is equipped with a plurality of sliders of transverse arrangement respectively, the relative both sides of carrying the dish spare are provided with two slide rails, and are a plurality of slider slidable mounting is corresponding on the slide rail, two the clamp plate slides to a plurality of the breach respectively with corresponding the gyro wheel is just right in order to take out the apron, two the clamp plate is connected with a clamp plate actuating mechanism respectively in order to realize two the automation mechanized operation that the clamp plate removed.
2. The fixture for simulating pressing test of a touch chip according to claim 1, wherein the tray-carrying member includes a tray-carrying mounting plate and a tray positioned on the tray-carrying mounting plate, the tray-carrying mounting plate is provided with a first window extending transversely, a plurality of through holes are formed in the tray and are opposite to the first window, two ends of the tray-carrying are supported on the tray-carrying mounting plate and are pressed by two positioning frames, and two sides of the two positioning frames are respectively and fixedly connected to the tray-carrying mounting plate.
3. The fixture for simulating pressing test of a touch chip according to claim 1, wherein the soft fixing member comprises a carrier and a plurality of mounting posts arranged in a matrix, the carrier is provided with a plurality of positioning holes for correspondingly mounting the mounting posts, and one end of each mounting post is respectively provided with a soft mounting hole for mounting the conductive soft member.
4. The fixture for simulating pressing test of a touch chip according to claim 3, wherein a plurality of positioning holes vertically penetrate through the carrier, a supporting plate is disposed on a side of the carrier away from the conductive soft body, each of the mounting posts is movably mounted in the corresponding positioning hole in a limited manner, and a buffering elastic member is disposed between the other end of each of the mounting posts and the supporting plate.
5. The fixture for simulating pressing test of a touch chip according to claim 4, wherein the other end of each mounting post is formed with a step portion protruding outward, and each positioning hole is stepped to stop the corresponding step portion so as to limit the stroke of the mounting post.
6. The fixture for testing simulated pressing of touch chips according to claim 1, wherein the conductive soft body is a conductive adhesive.
7. The fixture for testing simulated pressing of touch chips according to claim 1, further comprising a first lateral driving mechanism for driving the second testing module to move laterally.
8. The fixture for simulating pressing test of touch chip according to claim 7, further comprising a second lateral driving mechanism for driving the tray module, the second test module and the first lateral driving mechanism to move laterally integrally.
9. A touch chip simulation pressing test fixture is arranged on a machine table and used for being matched with a testing machine and being used for conducting electrical test under a pressing condition on a chip board through a plurality of groups of test probes electrically connected with the testing machine, a plurality of touch chips arranged in a matrix mode are distributed on the chip board, and the plurality of touch chips are transversely divided into a plurality of test areas, and the touch chip simulation pressing test fixture is characterized by comprising:
a base;
the tray carrying module is arranged above the base in a suspended mode through a supporting piece and used for carrying and positioning the chip board;
the second test module sets up carry a set module below and support and be in on the base, the second test module includes: a plurality of conductive soft bodies arranged in a matrix, soft body fixing pieces used for fixing the conductive soft bodies and a first vertical driving mechanism, wherein,
each conductive software corresponds to one touch chip respectively,
the first vertical driving mechanism is used for driving the soft fixing piece and the conductive soft bodies to move up and down so that the conductive soft bodies are in pressure joint with or separated from the corresponding sensing areas on the touch chip;
the first transverse driving mechanism is arranged on the base and used for driving the second testing module to transversely move so as to enable the second testing module to be positioned in the corresponding testing area of the chip board;
the second transverse driving mechanism is used for driving the base and the carrying disc module, the second testing module and the first transverse driving mechanism which are arranged on the base to integrally and transversely move so as to enable the plurality of testing probes to be positioned in corresponding testing areas of the chip board;
a plurality of through holes which are arranged in a matrix manner and correspond to the plurality of touch control chips of the chip board are formed in the carrying disc module;
the tray-carrying module comprises a tray-carrying piece, a cover plate, a plurality of rollers and two pressing plates, wherein,
the disk carrying piece is used for carrying the chip plate, and a plurality of through holes are formed in the disk carrying piece;
the cover plate is used for positioning and covering the disk carrying piece and the chip plate, so that the chip plate is reliably positioned on the disk carrying piece, and a plurality of through holes corresponding to the through holes are formed in the cover plate;
the rollers are respectively connected to two opposite side walls of the cover plate;
two but the clamp plate sets up transversely sliding respectively carry the relative both sides of dish spare, two the diapire inboard of clamp plate with carry and be formed with between the dish spare and supply a plurality of the space that the gyro wheel removed, two the inboard of clamp plate seted up with a plurality of breachs that the gyro wheel corresponds, two the clamp plate crimping is in a plurality of in order to fix a position on the gyro wheel apron, two the diapire outside of clamp plate is equipped with a plurality of sliders of transverse arrangement respectively, the relative both sides of carrying the dish spare are provided with two slide rails, and are a plurality of slider slidable mounting is corresponding on the slide rail, two the clamp plate slides to a plurality of the breach respectively with corresponding the gyro wheel is just right in order to take out the apron, two the clamp plate is connected with a clamp plate actuating mechanism respectively in order to realize two the automation mechanized operation that the clamp plate removed.
10. The fixture for simulating pressing test of a touch chip according to claim 9, wherein the first vertical driving mechanism is disposed below the flexible fixing member, and includes a mounting plate, a cylinder mounted in the middle of the mounting plate, two guide seats mounted on two sides of the mounting plate, a cylinder connecting plate connected to the driving end of the cylinder, and two sliding members connected and fixed to two sides of the bottom surface of the cylinder connecting plate, the flexible fixing member is mounted on the cylinder connecting plate, and a sliding mechanism is disposed between the sliding member and the corresponding guide seat to enable the sliding member to move up and down along the corresponding guide seat.
11. The fixture for testing simulated pressing of touch chips according to claim 9, wherein the second testing module is mounted on the first lateral driving mechanism.
12. The fixture for simulating pressing test of a touch chip according to claim 11, wherein the first horizontal driving mechanism includes a frame transversely installed on the base, a screw is installed inside the frame, two ends of the screw are respectively supported at two ends of the frame, a slider is installed inside the frame, the slider is screwed on the screw, one end of the screw extends out of the frame and is connected to the driver, the slider can slide horizontally along the screw under the driving of the driver, and the second testing module is fixedly connected to the slider to be driven to move horizontally.
13. The fixture for testing simulated pressing of touch chips according to claim 12, wherein the base is mounted on the second lateral driving mechanism, and the second lateral driving mechanism is mounted on the machine.
14. The fixture for testing simulated pressing of a touch chip according to claim 9, wherein a sensor chip is connected to one side of the second testing module, and a sensor corresponding to the sensor chip is disposed at a corresponding position of the base for positioning the second testing module in the first testing area of the chip board.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710884123.XA CN107807322B (en) | 2017-09-26 | 2017-09-26 | Touch control chip simulation pressing test fixture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710884123.XA CN107807322B (en) | 2017-09-26 | 2017-09-26 | Touch control chip simulation pressing test fixture |
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| CN107807322A CN107807322A (en) | 2018-03-16 |
| CN107807322B true CN107807322B (en) | 2020-06-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108436803B (en) * | 2018-04-27 | 2023-07-04 | 苏州富强科技有限公司 | Measuring jig |
| CN110045185A (en) * | 2019-04-17 | 2019-07-23 | 深圳振华富电子有限公司 | Patch products D.C. resistance test fixture |
| CN112697583A (en) * | 2020-12-01 | 2021-04-23 | 苏州通富超威半导体有限公司 | Pressure test fixture and pressure test device |
| CN112285539B (en) * | 2020-12-30 | 2021-04-13 | 南京亚尔软件测试有限公司 | IED flexible testing front-end adapter suitable for automatic taking and placing |
| CN113064057B (en) * | 2021-04-09 | 2021-10-29 | 深圳群芯微电子有限责任公司 | Integrated circuit chip detection equipment and test method |
| CN114019201A (en) * | 2021-09-29 | 2022-02-08 | 杭州长川科技股份有限公司 | Module testing device |
| CN115739690B (en) * | 2022-11-24 | 2023-10-27 | 深圳市安泽通科技发展有限公司 | LED patch detection equipment and detection method |
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| CN205620477U (en) * | 2016-03-25 | 2016-10-05 | 江苏凯尔生物识别科技有限公司 | A adjustable automatic testing arrangement of highly reliable pressure for fingerprint module |
| CN205427084U (en) * | 2016-03-29 | 2016-08-03 | 东莞华贝电子科技有限公司 | Fingerprint module testing arrangement |
| CN205982468U (en) * | 2016-08-18 | 2017-02-22 | 苏州迈瑞微电子有限公司 | Fingerprint identification module sensitivity test fixture |
| CN206311722U (en) * | 2016-12-27 | 2017-07-07 | 江苏凯尔生物识别科技有限公司 | Fingerprint chip-detecting apparatus with manual depression mechanism |
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