CN110687435B - An electric measuring fixture matched with an automatic electric measuring machine - Google Patents
An electric measuring fixture matched with an automatic electric measuring machine Download PDFInfo
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- CN110687435B CN110687435B CN201911066258.0A CN201911066258A CN110687435B CN 110687435 B CN110687435 B CN 110687435B CN 201911066258 A CN201911066258 A CN 201911066258A CN 110687435 B CN110687435 B CN 110687435B
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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]
- G01R31/281—Specific types of tests or tests for a specific type of fault, e.g. thermal mapping, shorts testing
- G01R31/2812—Checking for open circuits or shorts, e.g. solder bridges; Testing conductivity, resistivity or impedance
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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)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Supply And Installment Of Electrical Components (AREA)
Abstract
本发明公开了一种自动电测机匹配的电测治具，包括上治具、下治具及产品载板，下治具的上端设置有下治具顶板，在下治具顶板的电测探针区域内设有多个电测凸模块、且电测探针贯穿外露在电测凸模块上方，多个电测凸模块依FPC拼板单次电测区域内的FPC单元产品所需电测的产品电测区对应位置设置；所述产品载板上开设有多个产品电测窗口，多个产品电测窗口依FPC拼板内所有FPC单元产品所需电测的产品电测区对应位置设置，在产品载板上设置有多个与FPC拼板的产品定位孔匹配的产品定位PIN，在产品载板的左右两侧开设有多个与自动电测机匹配的载板定位孔。本发明结构简单，易于实现，可提升产品电测准确率、提高电测生产效率。
The present invention discloses an electric test fixture matched with an automatic electric test machine, comprising an upper fixture, a lower fixture and a product carrier, wherein a lower fixture top plate is arranged at the upper end of the lower fixture, a plurality of electric test convex modules are arranged in the electric test probe area of the lower fixture top plate, and the electric test probes are penetrated and exposed above the electric test convex modules, and the plurality of electric test convex modules are arranged at corresponding positions of the product electric test area required for electric test of the FPC unit products in the single electric test area of the FPC panel; a plurality of product electric test windows are arranged on the product carrier, and the plurality of product electric test windows are arranged at corresponding positions of the product electric test area required for electric test of all FPC unit products in the FPC panel, a plurality of product positioning PINs matching the product positioning holes of the FPC panel are arranged on the product carrier, and a plurality of carrier positioning holes matching the automatic electric test machine are arranged on the left and right sides of the product carrier. The present invention has a simple structure, is easy to implement, and can improve the accuracy of product electric test and improve the production efficiency of electric test.
Description
Technical Field
The invention relates to the technical field of flexible circuit board manufacturing, in particular to an electrical measurement jig matched with an automatic electrical measurement machine.
Background
With the rapid development of intelligent manufacturing, the production process of manual operation is mostly conducted into an automation device for operation, an important electrical testing process is provided in the production process of flexible circuit board (FPC) for detecting the electrical conductivity of FPC such as open circuit and short circuit, the electrical testing process is conducted into an automatic electrical testing machine for testing, as shown in figures 1 to 5, the existing electrical testing fixture 1 used with the automatic electrical testing machine comprises an upper fixture 11, a lower fixture 12 and a product carrier plate 13 matched with the upper fixture 12, the upper end of the lower fixture 12 is provided with a lower fixture top plate 121, a plurality of electrical testing positioning PINs 1211 matched with the electrical testing positioning holes 103 of FPC 100 are provided on the lower fixture top plate 121, an electrical testing area opening 132 matched with the electrical testing area of the whole FPC 100 is provided in the middle area of the product carrier plate 13, and when in use, the product carrier plate 13 is positioned and sleeved at the designated position of the automatic electrical testing machine through the carrier plate positioning holes 133, the FPC board 100 is positioned and sleeved on the product carrier 13 through the product positioning holes 102, the automatic electrical testing machine clamps and drives the product carrier 13 and the FPC board 100 on the product carrier 13 to be positioned and sleeved on the lower jig top plate 121 of the electrical testing jig 1 through the product positioning holes 102 and the electrical testing positioning PINs 1211, and the FPC board 100 is sequentially stepped along X, Y axes to be matched with the electrical testing jig 1 to realize automatic electrical testing, because the FPC board 100 is sleeved on the product carrier 13 only at the left and right sides and the process edges, the large-area in the middle of the FPC board 100 is in a suspended state, the FPC board 100 is made of flexible materials and has a certain soft deformation, in the electrical testing process, the positioning PINs are possibly not accurately sleeved to damage the product positioning holes, so that the electrical testing probes do not accurately detect the electrical testing points on the product, false measurement is caused, the false measurement is generated, the yield of the product is low, the machine station alarms for a plurality of times, the production efficiency is low.
Therefore, the present designer is directed to the deep conception of many defects and inconveniences caused by the imperfection of the structural design of the existing electrical measurement jig and the product carrier plate of the electrical measurement machine, and the present invention is developed and designed by actively researching and improving trial work.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the electric measuring jig which can accurately measure electricity and has high electric measuring efficiency and is matched with an automatic electric measuring machine.
In order to achieve the above object, the solution of the present invention is:
The electric testing jig comprises an upper jig, a lower jig and a product carrier plate matched with the upper jig and the lower jig, wherein a lower jig top plate is arranged at the upper end of the lower jig, an electric testing probe area is arranged on the lower jig top plate, a plurality of electric testing convex modules are arranged in the electric testing probe area and are exposed above the electric testing convex modules in a penetrating mode, the electric testing convex modules are arranged according to corresponding positions of product electric testing areas of FPC unit products in a single electric testing area of the FPC jointed board, a plurality of product electric testing windows are formed in the product carrier plate, the product electric testing windows are arranged according to corresponding positions of product electric testing areas of all FPC unit products in the FPC jointed board, and a plurality of product positioning PINs matched with product positioning holes of the FPC jointed board are arranged on the product carrier plate.
Further, a plurality of carrier plate positioning holes matched with the automatic electric measuring machine are formed in the left side and the right side of the product carrier plate.
Further, the thickness of the product carrier plate is the same as that of the electrical convex module.
Further, the dimension of the electrical protruding module is expanded by a first preset distance based on the dimension of the electrical area of the product.
The first preset distance is preferably 0.5-3mm.
Further, the size of the electrical measurement window of the product is expanded by a second preset interval on the basis of the size of the electrical measurement convex module.
The second predetermined distance is preferably 0.05-0.15mm.
The second preset interval is determined according to the product carrier plate, the electric convex module and the electric tolerance deviation, so that the electric accuracy of the product can be further ensured.
After the scheme is adopted, when the electric measurement jig matched with the automatic electric measurement machine is used, the upper jig and the lower jig are fixedly arranged in the appointed area of the automatic electric measurement machine, the product carrier plate is positioned and arranged in the appointed area of the automatic electric measurement machine through the upper plate positioning holes, during production, the FPC jointed board is positioned and sleeved on the product carrier plate through the product positioning holes and the product positioning PIN positioning holes, the automatic electric measurement machine drives the product carrier plate and the jointed board on the product carrier plate to be sleeved on the lower jig top plate of the electric measurement jig through the product electric measurement window and the electric measurement convex module matched positioning sleeve, and the FPC jointed board is sequentially stepped along the X, Y axis to be matched with the electric measurement jig to realize automatic electric measurement.
The invention relates to a method for manufacturing a printed circuit board (FPC), which comprises the steps of forming a window on a product carrier plate at a position corresponding to a product electric area required to be effectively tested by an FPC unit, forming a large part of the product area on the product carrier plate, ensuring that the FPC jointed board cannot bend and deform in the electric testing process to cause electric testing error measurement, carrying out electric testing on the FPC unit by matching and positioning the window with an electric male die block, ensuring the electric testing accuracy of the product, expanding the size of the product electric window by a second preset distance on the basis of the size of an electric male die block, determining the second preset distance according to the product carrier plate, the electric male die block and an electric tolerance, further ensuring the electric testing accuracy of the product, ensuring that the thicknesses of the product carrier plate and the electric male die block are the same, ensuring that the jointed board is at the same level in the electric testing process, further controlling the electric testing error, and avoiding electric testing damage to the product due to the difference in the height, and reducing the electric testing positioning process of the product area of the FPC unit in the FPC unit after the FPC is adopted by the method, reducing the working procedure of electric testing the electric testing positioning holes, shortening the manufacturing time, eliminating the positioning jig on the FPC unit, and improving the accuracy of the product positioning efficiency, and the PIN positioning accuracy, and improving the accuracy of the product positioning.
Drawings
FIG. 1 is a perspective view of a conventional electrical measurement tool;
FIG. 2 is a plan view of a top plate of a lower fixture of the conventional electrical test fixture;
FIG. 3 is a plan view of a product carrier plate used with a conventional electrical test fixture;
FIG. 4 is a schematic plan view of a conventional FPC board;
FIG. 5 is a schematic diagram illustrating the use of a conventional electrical measurement tool;
FIG. 6 is a perspective view of the electrical measurement tool of the present invention;
FIG. 7 is a perspective view of a lower fixture top plate of the present invention;
FIG. 8 is a perspective view of a product carrier plate of the present invention;
FIG. 9 is a perspective view of the top plate of the lower fixture, the electrical bump module and the product carrier plate of the present invention;
FIG. 10 is a plan view of the lower fixture top plate, electrical bump module and product carrier plate of the present invention;
FIG. 11 is an enlarged view of A in FIG. 10;
FIG. 12 is a schematic plan view of an FPC board of the present invention;
FIG. 13 is a schematic diagram of an electrical measurement tool according to the present invention.
Detailed Description
In order to further explain the technical scheme of the invention, the invention is explained in detail by specific examples.
As shown in fig. 6 to 13, the invention relates to an electrical testing jig 2 matched with an automatic electrical testing machine, which comprises an upper jig 21, a lower jig 22 and a product carrier plate 23 matched with the upper jig 22, wherein a lower jig top plate 221 is arranged at the upper end of the lower jig 22, a plurality of electrical testing convex modules 222 are additionally arranged in the original electrical testing probe area on the lower jig top plate 221, and electrical testing probes can penetrate through and be exposed above the electrical testing convex modules 222 (not shown in the electrical testing probe image), namely the electrical testing convex modules 222 are arranged according to the corresponding positions of product electrical areas 203 required to be electrically tested by the FPC unit products 201 in the single electrical testing area 20 of the FPC jigsaw 200;
A plurality of product electrical measurement windows 232 are formed in the product carrier plate 23, the product electrical measurement windows 232 are arranged at corresponding positions of product electrical measurement areas 203 required to be electrically measured of all FPC unit products 201 in the FPC jointed board 200, a plurality of product positioning PIN 231 matched with the product positioning holes 202 of the FPC jointed board 200 are formed in the product carrier plate 23, and a plurality of carrier plate positioning holes 233 matched with an automatic electrical measurement machine are formed in the left side and the right side of the product carrier plate 23;
the thickness of the product carrier plate 23 is the same as that of the electrical bump module 222.
The dimension of the electrical bump module 222 is expanded by a first predetermined distance H based on the dimension of the product electrical area 203.
The first preset distance H is preferably 0.5-3mm.
The size of the product electrical measurement window 232 expands a second predetermined distance L based on the size of the electrical measurement protrusion module 222.
The second preset distance L is preferably 0.05-0.15mm according to the product carrier 23, the electrical bump module 222 and the electrical tolerance deviation.
As shown in fig. 13, when in use, the upper jig 21 and the lower jig 22 are fixedly arranged in a designated area of the automatic electric measuring machine, the product carrier plate 23 is positioned and arranged in the designated area of the automatic electric measuring machine through the carrier plate positioning holes 233, during production, the FPC jointed board 200 is positioned and sleeved on the product carrier plate 23 through the product positioning holes 202 and the product positioning PINs 231, the automatic electric measuring machine drives the product carrier plate 23 and the FPC jointed board 200 thereon to be matched and positioned and sleeved on the lower jig top plate 221 of the electric measuring jig 1 through the product electric measuring window 232 and the electric measuring convex module 222, and the automatic electric measuring is realized by sequentially stepping along the X, Y shaft and matching with the electric measuring jig 2.
Because the window is arranged on the product carrier plate 23 only at the position corresponding to the product electric area 203 which is required to be effectively electrically tested by the FPC unit product 201, other areas of the product carrier plate 23 can bear most areas of products, so that the FPC splice plate is ensured not to bend and deform in the electric testing process to cause electric testing error measurement, the product electric testing accuracy can be ensured by electric testing after the product electric window 232 and the electric test convex module 222 are matched and sleeved, the size of the product electric window 232 is expanded by a preset distance L on the basis of the size of the electric test convex module 222, the preset distance L is determined according to the thicknesses of the product carrier plate 23, the electric test convex module 222 and the electric test tolerance deviation, the product electric test accuracy can be further ensured, the thicknesses of the product carrier plate 23 and the electric test convex module 222 are the same, the FPC splice plate is positioned at the same horizontal height in the electric testing process, the electric testing error can be further controlled, the electric testing error can not be caused by the difference of the electric testing error, after the product electric test jig and the product carrier plate are adopted, the product electric test jig 201 in the FPC electric test unit product electric test can be ensured, the periphery of the product electric test area 203 can be prevented from being used for designing a positioning hole, the punching time can be shortened, the product electric test PIN can be easily manufactured, the PIN positioning accuracy can be easily be improved, and the PIN positioning accuracy can be easily realized.
The above examples and drawings are not intended to limit the form or form of the present invention, and any suitable variations or modifications thereof by those skilled in the art should be construed as not departing from the scope of the present invention.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911066258.0A CN110687435B (en) | 2019-11-04 | 2019-11-04 | An electric measuring fixture matched with an automatic electric measuring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911066258.0A CN110687435B (en) | 2019-11-04 | 2019-11-04 | An electric measuring fixture matched with an automatic electric measuring machine |
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| Publication Number | Publication Date |
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| CN110687435A CN110687435A (en) | 2020-01-14 |
| CN110687435B true CN110687435B (en) | 2025-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911066258.0A Active CN110687435B (en) | 2019-11-04 | 2019-11-04 | An electric measuring fixture matched with an automatic electric measuring machine |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101581757A (en) * | 2008-05-12 | 2009-11-18 | 纬创资通股份有限公司 | Test system and test method |
| CN206292358U (en) * | 2016-12-16 | 2017-06-30 | 腾捷（厦门）电子有限公司 | Circuit board testing jig |
| CN206515439U (en) * | 2017-02-27 | 2017-09-22 | 苏州维信电子有限公司 | Flexible circuit board test support plate |
| CN211123147U (en) * | 2019-11-04 | 2020-07-28 | 厦门弘信电子科技集团股份有限公司 | Electric measuring jig matched with automatic electric measuring machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10116406A1 (en) * | 2001-04-02 | 2002-10-17 | Power One Ag Uster | Device for manufacturing and testing electronic units, has bearer plate with externally contactable central electrical contact area for connecting voltage, load or signals to electronic units |
| JP5459646B2 (en) * | 2007-05-08 | 2014-04-02 | 株式会社日本マイクロニクス | Probe unit and inspection device |
| CN101676731A (en) * | 2008-09-17 | 2010-03-24 | 汉民测试系统科技股份有限公司 | Circuit board structure of circuit testing device |
-
2019
- 2019-11-04 CN CN201911066258.0A patent/CN110687435B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581757A (en) * | 2008-05-12 | 2009-11-18 | 纬创资通股份有限公司 | Test system and test method |
| CN206292358U (en) * | 2016-12-16 | 2017-06-30 | 腾捷（厦门）电子有限公司 | Circuit board testing jig |
| CN206515439U (en) * | 2017-02-27 | 2017-09-22 | 苏州维信电子有限公司 | Flexible circuit board test support plate |
| CN211123147U (en) * | 2019-11-04 | 2020-07-28 | 厦门弘信电子科技集团股份有限公司 | Electric measuring jig matched with automatic electric measuring machine |
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| CN110687435A (en) | 2020-01-14 |
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Address after: 361000 2nd floor, No.19, Xianghai Road, industrial zone (Xiang'an), torch high tech Zone, Xiamen City, Fujian Province Applicant after: Xiamen Hongxin Electronic Technology Group Co.,Ltd. Address before: 361000 2nd floor, No.19, Xianghai Road, industrial zone (Xiang'an), torch high tech Zone, Xiamen City, Fujian Province Applicant before: XIAMEN HONGXIN ELECTRON-TECH Co.,Ltd. |
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