CN108051731B - High-precision contact type auxiliary test fixture and working method thereof - Google Patents
High-precision contact type auxiliary test fixture and working method thereof Download PDFInfo
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- CN108051731B CN108051731B CN201711485005.8A CN201711485005A CN108051731B CN 108051731 B CN108051731 B CN 108051731B CN 201711485005 A CN201711485005 A CN 201711485005A CN 108051731 B CN108051731 B CN 108051731B
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- 238000012360 testing method Methods 0.000 title claims abstract description 146
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000003384 imaging method Methods 0.000 claims abstract description 14
- 238000003825 pressing Methods 0.000 claims description 63
- 238000006073 displacement reaction Methods 0.000 claims description 43
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000523 sample Substances 0.000 abstract description 6
- 230000001502 supplementing effect Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000005498 polishing Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 208000025962 Crush injury Diseases 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/2806—Apparatus therefor, e.g. test stations, drivers, analysers, conveyors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/2818—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP] using test structures on, or modifications of, the card under test, made for the purpose of testing, e.g. additional components or connectors
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Electronic Circuits (AREA)
Abstract
The invention provides a high-precision contact type auxiliary test fixture and a working method thereof. The high-precision contact type test mechanism has reasonable structure and can be used for electric testing of various contact type tested circuit boards, including resistance testing, capacitance testing, short circuit testing, access testing and the like. The detection precision is high, and the accuracy is good. The imaging unit adopts a structure mode of back lighting, so that the problem of light reflection caused by front light supplementing is avoided, the testing precision is greatly improved, and the production efficiency is improved. The working method is reasonable, easy to realize, and can be used for direct contact alignment test, probe contact test is not needed, the test is convenient, and the accuracy and stability of results can not damage the detected product.
Description
Technical Field
The invention belongs to the field of DT test jigs, and particularly relates to a high-precision contact type test mechanism, in particular, but not limited to ICT test of an ultrathin flexible circuit board.
Background
The flexible printed circuit board is made of polyimide or polyester film as a base material, has high reliability, excellent flexibility, high wiring density, light weight, thin thickness and good flexibility.
In the process of producing flexible circuit boards, in order to ensure that the produced flexible circuit boards are qualified, each flexible circuit board needs to be tested, including testing the components such as open circuit, short circuit, capacitance, resistance, inductance, switch and the like of flexible circuit board (FPC) products. The flexible circuit board DT test fixture is mainly used for testing the flexible circuit board DT at present through artifical blowing, manual regulation, adjusts the micrometer through the display screen above the tool and realizes the product counterpoint. This test method is not only time consuming, but also difficult to ensure the reliability of product measurement. Meanwhile, the DT fixture mainly used for testing flexible circuit boards at present mainly has great influence on the precision of testing by manual adjustment testing, and also consumes a long time, and even the automatic test fixture also fails to provide a method for fixing and testing an ultrathin flexible circuit board, which is only suitable for testing general flexible circuit boards, and if the method is used for testing high-precision and ultrathin flexible circuit boards, the alignment precision is difficult to guarantee.
In addition, the existing ICT test fixture can only measure thicker and larger flexible circuit boards, and the development trend of the flexible circuit boards is to be precise, miniaturized and light. The traditional test method can not effectively measure the test result, and the error is larger. In addition, because the thickness of the ultrathin flexible circuit board is very thin, the thickness of the ultrathin flexible circuit board is only 0.04mm or less, and the DT jig for testing the flexible circuit board in the prior art cannot position, fix and detect the ultrathin flexible circuit board.
In addition, the CCD of the current DT test fixture is automatically aligned and captured, the light source of the current DT test fixture is mainly polished through the front, the method is not suitable for testing FPC board strips made of some reflective materials, the front polishing is diffused by the light source, and the CCD capture precision is affected by the test on the reflective materials. If a light-gathering mechanism is adopted, the testing of products is not facilitated.
Therefore, the above-described problems are to be solved.
The prior art provides a DT test fixture, provides a pneumatic compaction FPC board in this patent and counterpoint. The contact of PIN points on the FPC board is measured through the contact of the same golden finger, compared with the probe type test, the probe type test has the advantages that the problem of crush injury of the golden finger on the circuit board is basically detected, the probe is easy to crush PIN points of products through point contact, and bad contact sites can be caused. The application is different from the method: 1. after the product is placed, the product is automatically adsorbed, and the product is directly and automatically pressed without manual pressing. 2. The product PIN point contact test is realized by directly contacting with another FPC patch panel PIN point instead of a probe. The application has the advantages of rapidly realizing automatic alignment test, greatly improving the qualification rate and improving the working efficiency.
The prior art also provides an ICT test fixture. However, it has the following drawbacks: 1. the CCD is adopted to capture front polishing, the effect is only suitable for FPC boards without reflective materials, if the materials reflect light, the CCD capture position accuracy can be improved, and the application provides a brand new structure for polishing through the back, which can solve the problems. 2. The automatic alignment mode adopted by the automatic alignment device is that automatic alignment capturing is realized through movement of the CCD module, the automatic alignment device adopts the movement of the FPC adapter plate to realize fine adjustment of 0.005mm precision, and the alignment mode has the advantage of effectively improving alignment precision. 3. The mechanism product carrier is not suitable for fixing FPC boards with small specification, light weight and high precision. The application provides a structure for fixing the ultrathin high-precision FPC board.
Disclosure of Invention
The invention aims to: in order to overcome the defects, the invention aims to provide the high-precision contact type auxiliary test fixture which can test an ultrathin flexible circuit board with the thickness of 0.04mm or less, has an automatic alignment function, is high in alignment precision, and can perform auxiliary press fit contact by a soft press head after the contact position is finished, so that the FPC test board can be fully contacted with a PIN point of the ultrathin flexible circuit, automatic test can be realized, the test precision is greatly improved, the stability is improved, and the production efficiency is improved. In addition, by adopting a structure mode of back lighting, the problem of light reflection caused by front light supplementing is avoided, the testing precision is greatly improved, and the production efficiency is improved.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
A high precision contact type auxiliary test fixture, comprising:
A mechanism outer frame unit: the display screen comprises a mounting bottom plate, wherein two sides of the mounting bottom plate are vertically provided with side plates, a front panel is connected with the upper end parts of the two side plates, a display screen mounting plate is connected with the tops of the two side plates, two display screens are symmetrically arranged on the display screen mounting plate, and the display screens protrude outwards;
Test unit: the high-precision linear guide rail comprises a cylinder, wherein a first mounting plate is fixed on the surface of the cylinder, two high-precision linear guide rails are mounted on the upper portion of the first mounting plate, two high-precision sliding blocks are correspondingly arranged right below the high-precision linear guide rails, a second mounting plate is fixed on the surface of the high-precision sliding blocks, third mounting plates are symmetrically arranged at two ends below the second mounting plate, the third mounting plates are mutually perpendicular to the second mounting plate, a sliding table is connected below the third mounting plates, a fourth mounting plate is fixed at the bottom of the sliding table, an FPC (flexible printed circuit) test board is mounted at the bottom of the fourth mounting plate, the second mounting plate is mounted at the center of the inner side of a front panel, and the third mounting plate is positioned below the front panel;
And a pressing unit: the device comprises a pressing cylinder, wherein a connecting plate is arranged at the bottom of the pressing cylinder, a left side pressing head displacement fixing block, a middle pressing head displacement fixing block and a right side pressing head displacement fixing block are sequentially arranged below the connecting plate from left to right, a left side pressing head displacement sliding block, a middle pressing head displacement sliding block and a right side pressing head displacement sliding block are correspondingly arranged below the connecting plate, the left side pressing head displacement sliding block, the middle pressing head displacement sliding block and the right side pressing head displacement sliding block are respectively fixed with a left side pressing head, a middle pressing head and a right side pressing head through the left side pressing head fixing block, the middle pressing head fixing block and the right side pressing head fixing block, and the pressing cylinder is fixed on a front panel and forms a whole with a mechanism outer frame unit and a testing unit;
An imaging unit: the CCD fixing device comprises a CCD fixing connecting plate, wherein two grooves are formed in the CCD fixing connecting plate, a CCD fixing plate is arranged in each groove and connected with a CCD, a lens and a light source are sequentially arranged above the CCD, and an imaging unit is arranged in front of a testing unit.
Further, a pressure regulating valve and a high-precision digital display negative pressure meter are arranged on the front panel.
Further, a micrometer knob is arranged on the outer side of the sliding table.
Further, a lower buffer is arranged on one side of the pressing unit.
Further, an upper limiter is arranged at the top of the pressing unit.
Further, the left side pressure head displacement fixed block, the middle pressure head displacement fixed block and the right side pressure head displacement fixed block are C-shaped and symmetrically distributed, and the middle pressure head displacement fixed block is inverted T-shaped.
The specific working steps of the high-precision contact type auxiliary testing mechanism are as follows:
1) Placing the ultrathin flexible circuit board test product on a product carrier, and starting vacuum suction to adsorb the ultrathin flexible circuit board test product on the product carrier; the cylinder of the testing unit stretches out, the FPC testing board is lifted to a working position, alignment is achieved with the ultrathin flexible circuit board testing product, then the pressing cylinder is pressed down to drive the left side pressing head, the middle pressing head and the right side pressing head to be pressed down, the FPC testing board and the PIN position of the ultrathin flexible circuit board are fully pressed, and the ultrathin flexible circuit board testing product is contacted with the FPC testing board;
2) Turning on a light source, and irradiating light on a contact position of an ultrathin flexible circuit board test product and an FPC test board through a light guide column to serve as a datum point;
3) The imaging unit shoots and positions, the sliding table moves to adjust the position, so that the ultrathin flexible circuit board test product and the FPC test board are accurately aligned, the imaging unit shoots again and confirms the position, and after the accurate alignment, an external testing machine connected with the FPC test board is adopted to test the ultrathin flexible circuit board test product;
4) After the test is completed, the light source is turned off, the vacuum suction is turned off to stop adsorption, the pressing cylinder is retracted, and the cylinder is retracted and the ultrathin flexible circuit board test product is taken out.
The working method of the high-precision contact type auxiliary testing mechanism is reasonable, easy to realize, and the ultrathin flexible circuit board test product and the FPC test board can be directly tested without probe contact test.
The technical scheme can be seen that the invention has the following beneficial effects: the high-precision contact type auxiliary testing mechanism has the advantages of simple structure, reasonable design, easy production, stable performance and long service life, can automatically align the ultrathin flexible circuit board with the thickness of only 0.04mm or less, and has the alignment precision of 0.005mm. The automatic test of the flexible circuit board, especially the automatic test of the ultrathin flexible circuit board, can be realized, the test precision is greatly improved, the stability is improved, and the production efficiency is improved. In addition, a structural mode of back lighting is provided, the problem of light reflection caused by front light filling is avoided, the testing precision is greatly improved, and the production efficiency is improved. The method can be used for electric testing of various contact type tested circuit boards, including resistance testing, capacitance testing, short circuit testing, passage testing and the like, and has wide application range.
Drawings
FIG. 1 is a schematic diagram of a high-precision contact-type auxiliary test mechanism according to the present invention;
FIG. 2 is a schematic view of a mechanism outer frame unit in a high precision contact type auxiliary test according to the present invention;
FIG. 3 is a schematic diagram of a test unit in the high-precision contact-type auxiliary test mechanism according to the present invention;
FIG. 4 is a schematic diagram of a pressing unit in the high-precision contact type auxiliary testing mechanism according to the present invention;
Fig. 5 is a schematic structural diagram of an imaging unit in the high-precision contact-type auxiliary testing mechanism according to the present invention.
In the figure: 10 is a mounting bottom plate, 11 is a side plate, 12 is a front panel, 14 is a display screen mounting plate, 15 is a pressure regulating valve, 16 is a high-precision digital display negative pressure meter, 20 is an air cylinder, 21 is a first mounting plate, 22 is a high-precision linear rail, 23 is a high-precision sliding block, 24 is a second mounting plate, 25 is a third mounting plate, 26 is a sliding table, 27 is a fourth mounting plate, 28 is an FPC test plate, 29 is a micrometer knob, 30 is a pressing air cylinder, 31 is a connecting plate, 320 is a left side pressure head displacement fixing block, 321 is a middle pressure head displacement fixing block, 322 is a right side pressure head displacement fixing block, 330 is a left side pressure head displacement sliding block, 331 is a middle pressure head displacement sliding block, 332 is a right side pressure head displacement sliding block, 340 is a left side pressure head fixing block, 341 is a middle pressure head fixing block, 342 is a right side pressure head fixing block, 350 is a left pressure head, 351 is a middle pressure head, 352 is a right pressure head, 36 is a lower buffer, 37 is an upper limiter, 40 is a fixed connecting plate, 41 is a CCD fixing plate, 42 is a CCD (light source), 43 is a lens, and 44 is a light source.
Detailed Description
Referring to fig. 1, a schematic structural diagram of a gear noise testing machine according to the present invention includes:
a mechanism outer frame unit: referring to fig. 2, the display device comprises a mounting bottom plate 10, wherein two sides of the mounting bottom plate 10 are vertically provided with side plates 11, a front panel 12 is connected with the upper end parts of the two side plates 11, a display screen mounting plate 13 is connected with the tops of the two side plates 11, two display screens 14 are symmetrically arranged on the display screen mounting plate 13, and the display screens 14 protrude outwards;
Test unit: referring to fig. 3, the air cylinder 20 comprises an air cylinder 20, wherein a first mounting plate 21 is fixed on the surface of the air cylinder 20, two high-precision wire rails 22 are mounted on the upper portion of the first mounting plate 21, two high-precision sliding blocks 23 are correspondingly arranged right below the high-precision wire rails 22, a second mounting plate 24 is fixed on the surface of the high-precision sliding blocks 23, third mounting plates 25 are symmetrically arranged at two ends below the second mounting plate 24, the third mounting plates 25 are mutually perpendicular to the second mounting plate 24, a sliding table 26 is connected below the third mounting plates 25, a fourth mounting plate 27 is fixed at the bottom of the sliding table 26, an FPC test board 28 is mounted at the bottom of the fourth mounting plate 27, the second mounting plate 24 is mounted at the center inside of the front panel 12, and the third mounting plates 25 are positioned below the front panel 12;
And a pressing unit: referring to fig. 4, the press-fit device comprises a press-fit cylinder 30, wherein a connecting plate 31 is arranged at the bottom of the press-fit cylinder 30, a left-side press head displacement fixing block 320, a middle press head displacement fixing block 321 and a right-side press head displacement fixing block 322 are sequentially arranged below the connecting plate 31 from left to right, a left-side press head displacement sliding block 330, a middle press head displacement sliding block 331 and a right-side press head displacement sliding block 332 are correspondingly arranged below the connecting plate, and the left-side press head displacement sliding block 330, the middle press head displacement sliding block 331 and the right-side press head displacement sliding block 332 are respectively fixed with a left-side press head 350, a middle press head 351 and a right-side press head 352 through a left-side press head fixing block 340, a middle press head fixing block 341 and a right-side press head fixing block 342 below the connecting plate, and the press-fit cylinder 30 is fixed on a front panel 12 and forms a whole with a mechanism outer frame unit and a testing unit;
An imaging unit: see fig. 5, including the fixed connecting plate 40 of CCD, be provided with two recesses on the fixed connecting plate 40 of CCD, be provided with CCD fixed plate 41 in the recess, CCD42 is connected to CCD fixed plate 41, and CCD42 top has set gradually camera lens 43 and light source 44, imaging unit sets up in test unit the place ahead.
Further, a pressure regulating valve 15 and a high-precision digital display negative pressure meter 16 are mounted on the front panel 12.
Further, a micrometer knob 29 is arranged outside the sliding table 26.
Further, a lower buffer 36 is provided at one side of the pressing unit.
Further, an upper limiter 37 is arranged at the top of the pressing unit.
Further, the left side press head displacement fixing block 320 and the right side press head displacement fixing block 322 are C-shaped and symmetrically distributed, and the middle press head displacement fixing block 321 is inverted T-shaped.
The specific working steps of the high-precision contact type auxiliary testing mechanism are as follows:
1) Placing the ultrathin flexible circuit board test product on a product carrier, and starting vacuum suction to adsorb the ultrathin flexible circuit board test product on the product carrier; the cylinder of the test unit extends out, the FPC test board 28 is lifted to the working position, alignment is realized with the ultrathin flexible circuit board test product, then the pressing cylinder 30 is pressed down to drive the left side pressing head 350, the middle pressing head 351 and the right side pressing head to press down 352, the FPC test board 28 and the PIN position of the ultrathin flexible circuit board are fully pressed, and the ultrathin flexible circuit board test product is contacted with the FPC test board;
2) Turning on the light source 44, and irradiating light to the contact position of the ultrathin flexible circuit board test product and the FPC test board 28 through the light guide column to serve as a reference point;
3) The imaging unit shoots and positions, the sliding table 26 moves to adjust the position, so that the ultrathin flexible circuit board test product and the FPC test board 28 are accurately aligned, the imaging unit shoots again to confirm the position, and after the accurate alignment, an external testing machine connected with the FPC test board 28 is adopted to test the ultrathin flexible circuit board test product;
4) After the test is completed, the light source 44 is turned off, the vacuum suction is turned off to stop the adsorption, the pressing cylinder 30 is retracted, the cylinder 20 is retracted, and the ultrathin flexible circuit board test product is taken out. The foregoing is merely a preferred embodiment of the invention, and it should be noted that modifications could be made by those skilled in the art without departing from the principles of the invention, which modifications would also be considered to be within the scope of the invention.
Claims (5)
1. A high-precision contact type auxiliary test fixture is characterized in that: comprising the following steps:
A mechanism outer frame unit: the display screen comprises a mounting bottom plate (10), wherein side plates (11) are vertically arranged on two sides of the mounting bottom plate (10), a front panel (12) is connected with the upper end parts of the two side plates (11), a display screen mounting plate (13) is connected with the tops of the two side plates (11), two display screens (14) are symmetrically arranged on the display screen mounting plate (13), and the display screens (14) protrude outwards; the front panel (12) is provided with a pressure regulating valve (15) and a high-precision digital display negative pressure meter (16);
Test unit: the flexible printed circuit board testing device comprises an air cylinder (20), wherein a first mounting plate (21) is fixed on the surface of the air cylinder (20), two high-precision wire rails (22) are mounted on the upper portion of the first mounting plate (21), two high-precision sliding blocks (23) are correspondingly arranged right below the high-precision wire rails (22), a second mounting plate (24) is fixed on the surface of the high-precision sliding blocks (23), third mounting plates (25) are symmetrically arranged at two ends below the second mounting plate (24), the third mounting plates (25) are perpendicular to the second mounting plate (24), a sliding table (26) is connected below the third mounting plates (25), a fourth mounting plate (27) is fixed at the bottom of the sliding table (26), an FPC testing board (28) is mounted at the bottom of the fourth mounting plate (27), the FPC testing board (28) can be aligned with an ultrathin flexible printed circuit board testing product placed on a product carrier, the second mounting plate (24) is mounted at the center inside of a front panel (12), and the third mounting plate (25) is located below the front panel (12). A micrometer knob (29) is arranged on the outer side of the sliding table (26);
And a pressing unit: the automatic test device comprises a pressing cylinder (30), wherein a connecting plate (31) is arranged at the bottom of the pressing cylinder (30), a left side pressing head displacement fixing block (320), a middle pressing head displacement fixing block (321) and a right side pressing head displacement fixing block (322) are sequentially arranged below the connecting plate (31) from left to right, a left side pressing head displacement sliding block (330), a middle pressing head displacement sliding block (331) and a right side pressing head displacement sliding block (332) are correspondingly arranged below the connecting plate, and the left side pressing head displacement sliding block (330), the middle pressing head displacement sliding block (331) and the right side pressing head displacement sliding block (332) are respectively fixed with a left side pressing head (350), a middle pressing head (351) and a right side pressing head (352) through a left side pressing head fixing block (340), a middle pressing head fixing block (341) and a right side pressing head fixing block (342), and the pressing cylinder (30) is fixed on a front panel (12) and forms an integral with a mechanism outer frame unit and a test unit;
An imaging unit: the CCD fixing device comprises a CCD fixing connecting plate (40), wherein two grooves are formed in the CCD fixing connecting plate (40), a CCD fixing plate (41) is arranged in each groove, the CCD fixing plate (41) is connected with a CCD (42), a lens (43) and a light source (44) are sequentially arranged above the CCD (42), and an imaging unit is arranged in front of a testing unit.
2. The high-precision contact type auxiliary test fixture as claimed in claim 1, wherein a lower buffer (36) is arranged at one side of the pressing unit.
3. The high-precision contact type auxiliary test fixture as claimed in claim 1, wherein an upper limiter (37) is arranged at the top of the pressing unit.
4. The high-precision contact type auxiliary test fixture according to claim 1, wherein the left side pressure head displacement fixing block (320) and the right side pressure head displacement fixing block (322) are C-shaped and symmetrically distributed, and the middle pressure head displacement fixing block (321) is inverted-T-shaped.
5. A method of operating the high precision contact type auxiliary test fixture as claimed in any one of claims 1 to 4, comprising the steps of:
1) Placing the ultrathin flexible circuit board test product on a product carrier, and starting vacuum suction to adsorb the ultrathin flexible circuit board test product on the product carrier; the cylinder of the testing unit stretches out, the FPC testing board (28) is lifted to a working position, alignment is achieved with the ultrathin flexible circuit board testing product, then the pressing cylinder (30) is pressed down to drive the left side pressing head (350), the middle pressing head (351) and the right side pressing head (352) to be pressed down, the FPC testing board (28) and the PIN position of the ultrathin flexible circuit board are fully pressed, and the ultrathin flexible circuit board testing product is contacted with the FPC testing board;
2) Turning on a light source (44), and irradiating light on a position where an ultrathin flexible circuit board test product is contacted with an FPC test board (28) through a light guide column to serve as a reference point;
3) The imaging unit shoots and positions, the sliding table (26) moves to adjust the position, so that an ultrathin flexible circuit board test product and the FPC test board (28) are accurately aligned, the imaging unit shoots again to confirm the position, and after the accurate alignment, an external testing machine connected with the FPC test board (28) is adopted to test the ultrathin flexible circuit board test product;
4) After the test is completed, the light source (44) is turned off, the vacuum suction is turned off, the adsorption is stopped, the pressing cylinder (30) is retracted, the cylinder (20) is retracted, and the ultrathin flexible circuit board test product is taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711485005.8A CN108051731B (en) | 2017-12-29 | 2017-12-29 | High-precision contact type auxiliary test fixture and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711485005.8A CN108051731B (en) | 2017-12-29 | 2017-12-29 | High-precision contact type auxiliary test fixture and working method thereof |
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| CN108051731A CN108051731A (en) | 2018-05-18 |
| CN108051731B true CN108051731B (en) | 2024-06-04 |
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| CN111142007B (en) * | 2019-12-28 | 2024-11-29 | 东莞和利诚智能科技有限公司 | Be used for automatic counterpoint of one-dimensional and two-dimensional golden finger FPCA and testing arrangement |
| CN111354286A (en) * | 2020-04-16 | 2020-06-30 | 苏州润弘安创自动化科技有限公司 | Electronic function testing equipment for ultra-high precision Micro LED screen chip |
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