CN109326240B - Capacity uniformity test equipment for small-size OLED module products - Google Patents
Capacity uniformity test equipment for small-size OLED module products Download PDFInfo
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- CN109326240B CN109326240B CN201811342999.2A CN201811342999A CN109326240B CN 109326240 B CN109326240 B CN 109326240B CN 201811342999 A CN201811342999 A CN 201811342999A CN 109326240 B CN109326240 B CN 109326240B
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- 238000012360 testing method Methods 0.000 title claims abstract description 17
- 238000003825 pressing Methods 0.000 claims abstract description 58
- 238000001514 detection method Methods 0.000 claims abstract description 27
- 238000012545 processing Methods 0.000 claims description 12
- 238000001179 sorption measurement Methods 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000005056 compaction Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000012827 research and development Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 8
- 238000007740 vapor deposition Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Electroluminescent Light Sources (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The capacity uniformity test equipment for the small-size OLED module product is characterized by mainly comprising the following components: the device comprises a box body (1), a three-degree-of-freedom manual jig platform (2), a prepressing press assembly body (3), a CCD assembly body (6) and a light source assembly body (8), wherein the three-degree-of-freedom manual jig platform is arranged on the box body, the prepressing press assembly body (3) is used for installing a prepressing device (4) with a detection golden finger and a pressing device (5) for realizing reliable electrical connection between the detection golden finger and a product to be detected, and the prepressing device (4) and the pressing device (5) can move up and down along a guide rail on the prepressing press assembly body (3); the invention has compact structure, good universality, high precision, strong maneuverability and stable and accurate detection result, can replace the existing imported large-scale detection equipment, meets the detection requirements of industry, improves the research and development speed of products and reduces the production cost.
Description
Technical Field
The invention relates to a technology for detecting electrical performance of a liquid crystal product, in particular to a portable 3-8 inch OLED module product electrical performance detecting device, and specifically relates to a device for testing capacitance, uniformity and noise of a small-size OLED module product.
Background
At present, OLED investment is vigorously developed in China, and due to poor overall yield and excessively high reject ratio of the OLED, all OLED manufacturers in China do not have large-scale mass production, all the manufacturers are in small-batch test verification, the effect and uniformity of the vapor deposition section are inspected by virtue of imported Korean Japanese equipment in China, and in order to improve the accuracy and portability of vapor deposition section detection, equipment for carrying out capacity, uniformity and noise inspection on the OLED module products before being unbound is urgently designed so as to intercept defective products from flowing into the next station, and failure cost is reduced.
Disclosure of Invention
The invention aims at solving the problems of high capacity, uniformity and noise test and detection cost, large equipment investment and complex structure of the existing small-specification OLED module products, and designs the capacity uniformity test equipment for the small-specification OLED module products, which has the advantages of simple structure and convenience in operation and use.
The technical scheme of the invention is as follows:
the capacity uniformity test equipment for the small-size OLED module product is characterized by mainly comprising the following components:
the box body 1 is used as an installation space of a control circuit and auxiliary equipment in the box body 1, and the upper surface of the box body is used as an installation platform of each working part;
the three-degree-of-freedom manual jig platform 2 is used for adsorbing and moving and positioning a product to be detected so as to realize the alignment of the product and the detection marking;
the pre-pressing device body 3 is used for installing a pre-pressing device 4 with a golden finger detection and a pressing device 5 for realizing reliable electrical connection between the golden finger detection and a product to be detected, and both the pre-pressing device 4 and the pressing device 5 can move up and down along a guide rail on the pre-pressing device body 3;
the CCD assembly 6 is used for installing a CCD camera to pick up and detect the alignment condition of the alignment mark on the golden finger and the product to be detected so as to guide the movement of the three-degree-of-freedom manual jig platform 2 and finally realize the superposition of the alignment mark; the CCD assembly 6 is connected with the prepressing press assembly 3 through a sliding block 7;
a light source assembly 8, the light source assembly 8 is mounted on the CCD assembly 6 for providing a photographing light source for the CCD camera so that the CCD camera can obtain a clear image.
The three-degree-of-freedom manual jig platform 2 comprises a product to be detected mounting platform 201, as shown in fig. 7, the mounting platform 201 is mounted on a three-degree-of-freedom manual driving device 202, a transparent quartz glass strip 203 is mounted at the detection end of the mounting platform 201, a vacuum adsorption hole 204 is formed in the platform, and the vacuum adsorption hole 204 is connected with a vacuum pump mounted in the box body 1 and provides adsorption force by the vacuum pump; a manual limiting plate 205 is installed at the other end of the installation platform 201, and the manual limiting plate 205 realizes unidirectional movement positioning through a guide groove 206 and a locking screw. When the automatic alignment device is used, the detection end of a product to be detected is firstly placed on the quartz glass strip 203, then the manual limiting plate 205 is moved to be in contact with the other end of the product to be detected, the same batch of products only need to be adjusted once, then the vacuum pump is started to absorb the product to be detected on the jig platform, alignment of the cross mark can be started, and alignment can be quickly realized by manually adjusting the X, Y shaft of the three-degree-of-freedom manual driving device 202 and integrally pulling the mounting platform to rotate in a small amplitude.
The mounting platform 201 is further provided with a groove 207 for conveniently taking and placing the product to be detected.
The pre-pressing press assembly 3 comprises a shell 301, as shown in fig. 3, a vertical guide rail 302 for the pre-pressing device 4 and the pressing device 5 to move up and down is arranged on the side surface of the shell 301, a cylinder mounting box 303 for mounting a driving cylinder of the pressing device 5 is connected, an adjustable screw 304 and a horizontal guide rail 305 for connecting a sliding block 7 on the CCD assembly 6 are arranged on the upper part of the shell 301, and the adjustable screw 304 is inserted into a mounting hole 601 on the sliding block 7.
The pre-pressing device 4 comprises an FPC fixing plate 401 and a circuit board fixing plate 402, the FPC fixing plate 401 and the circuit board fixing plate 402 are both arranged on an air cylinder fixing plate 403, the air cylinder fixing plate 403 is connected with an air cylinder output shaft for driving the air cylinder fixing plate to move, the air cylinder is arranged on the box body 1, the side face of the air cylinder connecting plate 403 is arranged on a pre-pressing sliding block 404, and the pre-pressing sliding block 404 is arranged on a vertical guide rail 302 of the pre-pressing assembly body 3.
The FPC fixing plate 401 is provided with a groove 405 for fixing the FPC plate.
The pressing device 5 comprises a pressing connection plate 501, a pressing head 502 is arranged on the pressing connection plate 501, a cylinder 503 with a driving area moving up and down is connected to the upper portion of the pressing connection plate, the cylinder 503 is integrally covered in a cylinder installation box 303 on a shell 301 of a prepressing pressing assembly 3, a pressing sliding block 504 is connected to the side face of the pressing connection plate 501, and the pressing sliding block 504 is installed on a vertical guide rail 302 of the prepressing pressing assembly 3.
The CCD assembly 6 comprises a camera fixing plate 605, a camera 602 is arranged on the camera fixing plate 605, a camera fixing plate 601 is arranged on a camera guide rail 603, the camera guide rail 603 is arranged on a signal processing box 604, a sliding block 7 is also arranged on the signal processing box 604, and a plurality of mounting holes 601 are formed in the sliding block 7; the front side of the signal processing box is provided with a connecting plate 606 connected with the light source assembly, and two sides of the connecting plate 606 are respectively provided with a connecting hole 607 for connecting with a side fixing plate 803 in the light source assembly 8.
The light source assembly 8 comprises a light source fixing plate 801, a light source 802 is fixedly arranged on the light source fixing plate 801, two sides of the light source fixing plate 801 are respectively connected with a side fixing plate 803, and the side fixing plates 803 are connected with and synchronously move with the connecting holes 607 on the connecting plate 606 on the signal processing box 604 in the CCD assembly 6 through connecting pins passing through holes 804 on the side fixing plates 803.
The box body 1 is provided with a correlation sensor mounting plate 9.
The invention has the beneficial effects that:
the invention has compact structure, good universality, high precision, strong maneuverability and stable and accurate detection result, can replace the existing imported large-scale detection equipment, meets the detection requirements of industry, improves the research and development speed of products and reduces the production cost.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the case of the present invention.
Fig. 3 is a schematic structural view of the installation body of the pre-pressing device of the present invention.
Fig. 4 is a schematic structural view of the prepressing device of the present invention.
Fig. 5 is a schematic structural view of the present pressing device of the present invention.
Fig. 6 is a schematic view of the pre-press-fitting structure of the present invention.
Fig. 7 is a schematic structural diagram of the workpiece clamping fixture of the invention.
Fig. 8 is a schematic view of the structure of the light source of the present invention.
Fig. 9 is a schematic structural view of the CCD assembly of the present invention.
Detailed Description
The invention is further described below with reference to the drawings and examples.
As shown in fig. 1-9.
The capacity uniformity test equipment of a kind of small-scale OLED module products, it mainly includes: the manual tool platform of box 1, three degree of freedom 2, pre-compaction this press assembly 3, pre-compaction device 4, this press device 5, CCD assembly 6, light source assembly 8 and install the correlation sensor mounting panel 9 in the box surface both sides, as shown in FIG. 1, wherein: the structure of the case 1 is shown in fig. 2, the mounting surface adopts a bevel structure for facilitating observation, the detection result can be displayed by a display (not shown in the figure) mounted at the rear part of the case, the inside of the case 1 is used as a mounting space for a control circuit and auxiliary equipment, the upper surface of the case is used as a mounting platform for each working part, and various control and detection switches are arranged at the same time. The three-degree-of-freedom manual jig platform 2 is shown in fig. 7, and the three-degree-of-freedom manual jig platform 2 is used for adsorbing and moving and positioning a product to be detected so as to realize the alignment of the product and the detection marking; the three-degree-of-freedom manual jig platform 2 comprises a product to be detected mounting platform 201, as shown in fig. 7, the mounting platform 201 is mounted on a three-degree-of-freedom manual driving device 202, a transparent quartz glass strip 203 is mounted at the detection end of the mounting platform 201, a vacuum adsorption hole 204 is formed in the platform, and the vacuum adsorption hole 204 is connected with a vacuum pump mounted in the box body 1 and provides adsorption force by the vacuum pump; a manual limiting plate 205 is installed at the other end of the installation platform 201, and the manual limiting plate 205 realizes unidirectional movement positioning through a guide groove 206 and a locking screw. When the automatic alignment device is used, the detection end of a product to be detected is firstly placed on the quartz glass strip 203, then the manual limiting plate 205 is moved to be in contact with the other end of the product to be detected, the same batch of products only need to be adjusted once, then the vacuum pump is started to absorb the product to be detected on the jig platform, alignment of the cross mark can be started, and alignment can be quickly realized by manually adjusting the X, Y shaft of the three-degree-of-freedom manual driving device 202 and integrally pulling the mounting platform to rotate in a small amplitude. The mounting platform 201 is further provided with a groove 207 for conveniently taking and placing the product to be detected. The pre-pressing device body 3 is shown in fig. 3, the pre-pressing device body 3 is used for installing a pre-pressing device 4 with a detection golden finger and a self-pressing device 5 for realizing reliable electrical connection between the detection golden finger and a product to be detected, and the pre-pressing device 4 and the self-pressing device 5 can move up and down along a guide rail on the pre-pressing device body 3; prepressing the present press-fitting body 3 includes a housing 301, as shown in fig. 3, a vertical guide rail 302 for vertically moving the prepressing device 4 and the present press-fitting device 5 is mounted on a side surface of the housing 301, a cylinder mounting box 303 for mounting a driving cylinder of the present press-fitting device 5 is connected, an adjustable screw 304 and a horizontal guide rail 305 for connecting a slider 7 on the CCD-fitting body 6 are mounted on an upper portion of the housing 301, and the adjustable screw 304 is inserted into a mounting hole 601 on the slider 7. The pre-pressing device 4 is shown in fig. 4, and the pre-pressing device comprises an FPC fixing plate 401 and a circuit board fixing plate 402, wherein the FPC fixing plate 401 and the circuit board fixing plate 402 are both arranged on a cylinder fixing plate 403, the cylinder fixing plate 403 is connected with a cylinder output shaft for driving the cylinder fixing plate to move, the cylinder is arranged on the box body 1, the side face of the cylinder connecting plate 403 is arranged on a pre-pressing sliding block 404, and the pre-pressing sliding block 404 is arranged on a vertical guide rail 302 of the pre-pressing assembly body 3. The FPC fixing plate 401 is provided with a groove 405 for fixing the FPC plate. The present press device 5 is shown in fig. 5, and comprises a present press connection plate 501, wherein a press head 502 is arranged on the present press connection plate 501, a cylinder 503 with a driving area moving up and down is connected to the upper part of the present press connection plate, the whole cylinder 503 is covered in a cylinder installation box 303 on a shell 301 of a pre-press present press assembly body 3, a present press slide block 504 is connected to the side surface of the present press connection plate 501, and the present press slide block 504 is installed on a vertical guide rail 302 of the pre-press present press assembly body 3. The installation and assembly structure of the prepressing device on the prepressing device body is shown in fig. 6. The CCD assembly 6 is shown in fig. 9, and the CCD assembly 6 is used for installing a CCD camera to pick up and detect the alignment condition of the alignment mark on the golden finger and the product to be detected, so as to guide the movement of the three-degree-of-freedom manual jig platform 2 and finally realize the superposition of the alignment mark; the CCD assembly 6 is connected with the prepressing press assembly 3 through a sliding block 7; light source assembly 8 as shown in fig. 8, the light source assembly 8 is mounted on the CCD assembly 6 for providing a photographing light source for the CCD camera so that the CCD camera can acquire a clear image. The CCD assembly 6 comprises a camera fixing plate 605, a camera 602 is mounted on the camera fixing plate 605, a camera fixing plate 601 is mounted on a camera guide rail 603, the camera guide rail 603 is mounted on a signal processing box 604, a sliding block 7 is also mounted on the signal processing box 604, and a plurality of mounting holes 601 are formed in the sliding block 7; the front side of the signal processing box is provided with a connecting plate 606 connected with the light source assembly, and two sides of the connecting plate 606 are respectively provided with a connecting hole 607 for connecting with a side fixing plate 803 in the light source assembly 8. The light source assembly 8, as shown in fig. 8, includes a light source fixing plate 801, a light source 802 fixedly mounted on the light source fixing plate 801, and a side fixing plate 803 connected to each of both sides of the light source fixing plate 801, the side fixing plate 803 being connected to and synchronously movable with a connection hole 607 of a connection plate 606 of a signal processing box 604 in the CCD assembly 6 by a connection pin passing through an opening 804 thereof.
The application method of the invention is as follows:
firstly, one end of a leading-out wire of a product to be detected is placed on a quartz glass strip 203 on a three-degree-of-freedom manual jig platform 2, then a manual limiting plate 205 is moved to be in contact with the other end of the product to be detected, the same batch of products only need to be adjusted once, then a vacuum pump is started to adsorb the product to be detected on the jig platform, alignment of cross marks can be started, and alignment can be rapidly realized by manually adjusting a X, Y shaft of the three-degree-of-freedom manual driving device 202 and integrally pulling the mounting platform to rotate in a small amplitude.
Then, starting a pre-pressing device 4, enabling the pre-pressing device to move upwards to be in place, and enabling FPC (flexible printed circuit) detection strips and circuit boards mounted on the pre-pressing device to be in contact with products to be detected;
thirdly, the pressing device is started to press down, so that the pressing head 502 of the pressing device is contacted with the FPC detection strip, the product to be detected is well contacted with the FPC detection strip, and the capacity, uniformity and noise level test can be started.
The invention is not related in part to the same as or can be practiced with the prior art.
Claims (7)
1. The capacity uniformity test equipment for the small-size OLED module product is characterized by mainly comprising the following components:
the box body (1) is internally used as a mounting space for a control circuit and auxiliary equipment, and the upper surface of the box body (1) is used as a mounting platform for each working part;
the three-degree-of-freedom manual jig platform (2) is used for adsorbing and moving and positioning a product to be detected so as to realize the alignment of the product and the detection marking;
the pre-pressing device (3) is used for installing a pre-pressing device (4) with a golden finger and a pressing device (5) for realizing reliable electric connection between the golden finger and a product to be detected, and both the pre-pressing device (4) and the pressing device (5) can move up and down along a guide rail on the pre-pressing device (3);
the CCD assembly (6) is used for installing a CCD camera to pick up and detect the alignment condition of the alignment mark on the golden finger and the product to be detected so as to guide the movement of the three-degree-of-freedom manual jig platform (2) and finally realize the superposition of the alignment mark; the CCD assembly body (6) is connected with the prepressing press assembly body (3) through a sliding block (7);
a light source assembly (8), the light source assembly (8) is installed on the CCD assembly (6) and is used for providing a shooting light source for the CCD camera so that the CCD camera can acquire clear images;
the prepressing press assembly body (3) comprises a shell (301), a vertical guide rail (302) for the prepressing device (4) and the pressing device (5) to move up and down is arranged on the side surface of the shell (301), a cylinder mounting box (303) for mounting a driving cylinder of the pressing device (5) is connected, an adjustable screw (304) and a horizontal guide rail (305) for connecting a sliding block (7) on the CCD assembly body (6) are arranged on the upper part of the shell (301), and the adjustable screw (304) is inserted into a mounting hole (601) on the sliding block (7);
the pre-pressing device (4) comprises an FPC (flexible printed circuit) fixing plate (401) and a circuit board fixing plate (402), the FPC fixing plate (401) and the circuit board fixing plate (402) are both arranged on an air cylinder fixing plate (403), the air cylinder fixing plate (403) is connected with an air cylinder output shaft for driving the air cylinder fixing plate to move, the air cylinder is arranged on the box body (1), the side face of the air cylinder fixing plate (403) is arranged on a pre-pressing sliding block (404), and the pre-pressing sliding block (404) is arranged on a vertical guide rail (302) of the pre-pressing assembly body (3);
this pressure device (5) include this pressure connecting plate (501), be equipped with pressure head (502) on this pressure connecting plate (501), its upper portion is connected with cylinder (503) that the drive zone reciprocated, cylinder (503) whole cover is installed in cylinder mounting box (303) on casing (301) of this pressure assembly of pre-compaction body (3), the side of this pressure connecting plate (501) is connected with this pressure slider (504), this pressure slider (504) are installed on vertical guide rail (302) of this pressure assembly of pre-compaction body (3).
2. The small-sized OLED module product capacity uniformity test equipment according to claim 1 is characterized in that the three-degree-of-freedom manual jig platform (2) comprises a product mounting platform (201) to be detected, the mounting platform (201) is mounted on a three-degree-of-freedom manual driving device (202), a light-transmitting quartz glass strip (203) is mounted at a detection end of the mounting platform (201), a vacuum adsorption hole (204) is formed in the platform, and the vacuum adsorption hole (204) is connected with a vacuum pump mounted in the box body (1) and provides adsorption force by the vacuum pump; the other end of the mounting platform (201) is provided with a manual limiting plate (205), and the manual limiting plate (205) realizes unidirectional movement positioning through a guide groove (206) and a locking screw.
3. The device for testing the uniformity of the capacity of the small-sized OLED module product according to claim 2, wherein the mounting platform (201) is further provided with a first groove (207) for facilitating the taking and placing of the product to be tested.
4. The device for testing the uniformity of the capacitance value of the small-sized OLED module product according to claim 1, wherein the FPC fixing plate (401) is provided with a second groove (405) for fixing the FPC plate.
5. The device for testing the uniformity of the capacity of the small-sized OLED module product according to claim 1, wherein the CCD assembly (6) comprises a camera fixing plate (605), a camera (602) is installed on the camera fixing plate (605), the camera fixing plate (605) is installed on a camera guide rail (603), the camera guide rail (603) is installed on a signal processing box (604), a sliding block (7) is also installed on the signal processing box (604), and a plurality of mounting holes (601) are formed in the sliding block (7); the front side of the signal processing box is provided with a connecting plate (606) connected with the light source assembly, and two sides of the connecting plate (606) are respectively provided with a connecting hole (607) for connecting a side fixing plate (803) in the light source assembly (8).
6. The device for testing the uniformity of the capacity of the small-sized OLED module product according to claim 1, wherein the light source assembly (8) comprises a light source fixing plate (801), the light source (802) is fixedly installed on the light source fixing plate (801), two sides of the light source fixing plate (801) are respectively connected with a side fixing plate (803), and the side fixing plates (803) are connected with and synchronously move with connecting holes (607) on connecting plates (606) on the signal processing box (604) in the CCD assembly (6) through connecting pins passing through holes (804) on the side fixing plates.
7. The device for testing the capacity uniformity of the small-sized OLED module products according to claim 1 is characterized in that the box body (1) is provided with a correlation sensor mounting plate (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811342999.2A CN109326240B (en) | 2018-11-13 | 2018-11-13 | Capacity uniformity test equipment for small-size OLED module products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811342999.2A CN109326240B (en) | 2018-11-13 | 2018-11-13 | Capacity uniformity test equipment for small-size OLED module products |
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| Publication Number | Publication Date |
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| CN109326240A CN109326240A (en) | 2019-02-12 |
| CN109326240B true CN109326240B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811342999.2A Active CN109326240B (en) | 2018-11-13 | 2018-11-13 | Capacity uniformity test equipment for small-size OLED module products |
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| CN204228866U (en) * | 2014-12-04 | 2015-03-25 | 昆山精讯电子技术有限公司 | A kind of oled panel proving installation |
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| CN206292312U (en) * | 2016-09-22 | 2017-06-30 | 珠海市运泰利自动化设备有限公司 | Soft arranging wire contraposition adjustment test platform based on optical alignment |
| CN207866975U (en) * | 2017-12-29 | 2018-09-14 | 苏州润弘安创自动化科技有限公司 | A kind of high-precision contact auxiliary test jig |
| CN209045137U (en) * | 2018-11-13 | 2019-06-28 | 南京视倍安智能科技有限公司 | The capacitance homogeneity test equipment of small dimension OLED mould set product |
-
2018
- 2018-11-13 CN CN201811342999.2A patent/CN109326240B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204228866U (en) * | 2014-12-04 | 2015-03-25 | 昆山精讯电子技术有限公司 | A kind of oled panel proving installation |
| CN105334449A (en) * | 2015-11-16 | 2016-02-17 | 珠海市博杰电子有限公司 | High-precision automatic alignment ICT (In Circuit Tester) |
| CN206292312U (en) * | 2016-09-22 | 2017-06-30 | 珠海市运泰利自动化设备有限公司 | Soft arranging wire contraposition adjustment test platform based on optical alignment |
| CN207866975U (en) * | 2017-12-29 | 2018-09-14 | 苏州润弘安创自动化科技有限公司 | A kind of high-precision contact auxiliary test jig |
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| CN109326240A (en) | 2019-02-12 |
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