CN113466659B - Flying probe testing device for printed circuit board detection - Google Patents
Flying probe testing device for printed circuit board detection Download PDFInfo
- Publication number
- CN113466659B CN113466659B CN202110718252.8A CN202110718252A CN113466659B CN 113466659 B CN113466659 B CN 113466659B CN 202110718252 A CN202110718252 A CN 202110718252A CN 113466659 B CN113466659 B CN 113466659B
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- Prior art keywords
- circuit board
- disc
- flying probe
- permanent magnet
- probe testing
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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
- G01R31/2808—Holding, conveying or contacting devices, e.g. test adapters, edge connectors, extender boards
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Tests Of Electronic Circuits (AREA)
Abstract
The invention discloses a flying probe testing device for detecting a printed circuit board, which comprises a rack, a flying probe testing machine and a fixing mechanism for fixing the circuit board, wherein the flying probe testing machine is fixedly arranged at the top end of the rack, and the fixing mechanism comprises: the rotating disc is rotationally arranged on the rack through a rotating shaft and is positioned under the flying probe testing machine, a pair of testing table boards are symmetrically arranged on the side edge of the rotating disc, and the testing table boards are used for placing circuit board bodies; the two fixing assemblies are respectively arranged on the test table board and used for fixing the circuit board body on the test table board; and the driving assembly is used for providing the driving force required by the rotation of the rotating disc. According to the invention, after the test of the upper circuit board body is finished, the lower circuit board body can be directly rotated to the upper side for testing, so that the flying probe testing machine can continuously perform testing work, and the testing efficiency of the circuit board is improved.
Description
Technical Field
The invention belongs to the technical field of flying probe testing devices, and particularly relates to a flying probe testing device for detecting a printed circuit board.
Background
The printed circuit board is an essential component indispensable in electronic equipment, and plays a role of electrical and mechanical double connection in the electronic equipment. Testing is extremely important in printed circuit board production, if a product has problems, serious consequences can be caused in the future use process, the problems can be found as soon as possible, and many unnecessary losses can be avoided.
The flying probe testing device mainly comprises a flying probe control system and a circuit board fixing system, when in use, the printed circuit board to be tested is firstly fixed on a testing table board through a corresponding fixing component, then the flying probe control system operates, and the flying probe is continuously contacted with the circuit board to test the printed circuit board.
However, in the existing flying probe testing device for printed circuit board detection, one flying probe testing system corresponds to one testing table, when one printed circuit board is tested, the flying probe testing system needs to be detached from the testing table, and then the next printed circuit board is installed for testing, wherein a circuit board replacement gap exists, so that the testing work cannot be continuously carried out, and the overall testing efficiency of the circuit board is greatly reduced;
meanwhile, the circuit board is generally fixed on the test table board in a clamping manner, wherein if the clamping force is relatively low, the circuit board is easy to generate position deviation in the test process, so that the test result is influenced; if give the great clamping force of circuit board, then the user can be more labourious from the dismouting circuit board of test table top to user's work load has been improved.
Disclosure of Invention
The invention provides a flying probe testing device for detecting a printed circuit board, which aims to solve the technical problems in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
a flying probe testing device for detecting a printed circuit board comprises a rack, a flying probe testing machine and a fixing mechanism for fixing the circuit board, wherein the flying probe testing machine is fixedly arranged at the top end of the rack, and the fixing mechanism comprises:
the rotating disc is rotationally arranged on the rack through a rotating shaft and is positioned under the flying probe testing machine, a pair of testing table boards are symmetrically arranged on the side edge of the rotating disc, and the testing table boards are used for placing circuit board bodies;
the two fixing assemblies are respectively arranged on the test table board and used for fixing the circuit board body on the test table board;
and the driving assembly is used for providing the driving force required by the rotation of the rotating disc.
Preferably, the frame is a frame structure having a side wall and a top wall, the flying probe testing machine is fixedly disposed on the top wall of the frame, the rotating shaft is rotatably connected to the side wall of the frame, and a lower portion of the rotating disc extends out of the frame.
Preferably, the driving assembly includes a servo motor and a transmission member, the servo motor is fixedly disposed outside the frame, and the output shaft is connected to the rotating shaft through the transmission member.
Preferably, fixed subassembly is a plurality of, and distribute in test table face's week side, fixed subassembly includes dwang and fixture block and spring, the mounting groove has been seted up to test table face's side, the dwang middle part rotate through the pivot dispose in the mounting groove, the fixture block fixed dispose in the top of dwang, the dwang is in pivot top part and passes through the spring is connected with the mounting groove lateral wall, the spring is right the effort towards test table face center is applyed to the dwang.
Preferably, the flying probe testing apparatus further comprises: the adjusting part is used for adjusting the fixing force of the fixing part on the circuit board body, when the fixing part is positioned on the upper side of the rotating disc, the adjusting part enhances the fixing force, and when the fixing part is positioned on the lower side of the rotating disc, the adjusting part weakens the fixing force.
Preferably, the adjusting part is including drawing piece and two second permanent magnets and a plurality of stretch cord, two the second permanent magnet respectively with two test table face corresponds, a pair of activity chamber has been seted up to the rolling disc inside, the activity chamber is followed the radial extension of rolling disc, and the extension line passes test table face's mid point, the second permanent magnet slide dispose in the activity intracavity, and the one end of keeping away from the rolling disc centre of a circle is connected with the lower extreme of a plurality of dwangs respectively through a plurality of stretch cords, draw the piece dispose in the rolling disc middle part, draw the piece and exert repulsive force to the second permanent magnet that is in the top all the time, exert attractive force to the second permanent magnet of below.
Preferably, the traction piece is the adjusting disk, the installation cavity that is used for rotating the installation adjusting disk is seted up at the rolling disk middle part, the inside fixed configuration of adjusting disk has first permanent magnet, the adjusting disk is formed by the concatenation of first half disc and second semicircle dish, first half disc adopts the material that density is bigger to make than the second semicircle dish, and is in its downside, the magnetic pole of first permanent magnet upper end with the magnetic pole that the second permanent magnet is close to rolling disk center one end is the same.
Compared with the prior art, the invention has the beneficial effects that:
1. through setting up the rolling disc, the rolling disc symmetry is provided with a pair of test table face, and two test table faces work in turn, and after the circuit board plate body test of top, the circuit board plate body of below can directly rotate and test to the top to make and fly needle test machine and can carry out test work in succession, improved circuit board efficiency of software testing greatly.
2. Through setting up adjusting part, can the fixed dynamics of fixed subassembly of dynamic adjustment, when the circuit board plate body is in the upside and is tested, it receives great fixed dynamics, and then is difficult for producing the skew, when the circuit board plate body is in the downside, the less fixed dynamics that it received, convenient to use person's dismouting circuit board plate body.
Drawings
FIG. 1 is a schematic front view of a flying probe testing device for PCB inspection according to the present invention;
FIG. 2 is a schematic side view of a flying probe testing device for PCB inspection according to the present invention;
FIG. 3 is an enlarged view of a portion of the structure of FIG. 1;
fig. 4 is a schematic perspective view of a flying probe testing device for detecting a printed circuit board according to the present invention.
In the figure: the test device comprises a machine frame 1, a flying probe test machine 2, a rotating disc 3, a test table 4, a servo motor 5, a rotating shaft 6, a mounting cavity 7, an adjusting disc 8, a first semicircular disc 9, a second semicircular disc 10, a first permanent magnet 11, a circuit board body 12, a mounting groove 13, a fixture block 14, a rotating rod 15, a spring 16, a movable cavity 17, a second permanent magnet 18, an elastic rope 19 and a rotating shaft 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1 to 4, a flying probe testing apparatus for detecting a printed circuit board includes a frame 1, a flying probe testing machine 2, and a fixing mechanism for fixing the circuit board, wherein the flying probe testing machine 2 is fixedly disposed at a top end of the frame 1, and the fixing mechanism includes:
the rotary disc 3, the rotary disc 3 is disposed on the framework 1 through the rotating shaft 6 to rotate, and is located under the flying probe tester 2, the side of the rotary disc 3 is symmetrically provided with a pair of test tables 4, the test tables 4 are used for placing the circuit board body 12;
the two fixing components are respectively arranged on the test table top 4 and used for fixing the circuit board body 12 on the test table top 4;
and the driving assembly is used for providing the driving force required by the rotation of the rotating disc 3.
In the embodiment applying the technical scheme, a pair of test table boards 4 are symmetrically arranged on the rotating disc 3, wherein the driving assembly controls the rotating disc 3 to rotate, when one test table board 4 rotates to the top end of the rotating disc 3, the test table board is positioned right below the flying probe testing machine 2 and further in a working state, and the other test table board 4 is positioned at the lower side of the rotating disc 3 and is in an idle state; when the device works, a user can fix the circuit board body 12 on one of the test table boards 4, then the rotating disc 3 is driven to rotate, so that the test table board 4 rotates to the top end, and the flying probe tester 2 can detect the circuit board body 12; meanwhile, the other test table 4 is in an idle state, and a user can assemble the circuit board body 12 on the test table 4; after the test of the circuit board body 12 above, the circuit board body 12 below can be directly rotated to the above for testing, so that the flying probe testing machine 2 can continuously perform the test work, and the circuit board testing efficiency is greatly improved.
According to the specific technical scheme in the embodiment, the rack 1 is of a frame structure with a side wall and a top wall, the flying probe testing machine 2 is fixedly arranged on the top wall of the rack 1, the rotating shaft 6 is rotatably connected with the side wall of the rack 1, and the lower side part of the rotating disc 3 extends out of the rack 1; in the specific embodiment, the structure-shaped mechanism has a good protection effect, because the upper side part of the rotating disc 3 is positioned in the rack 1, the test table top 4 is positioned in the rack 1 when the top end of the rotating disc 3 rotates to enter a working state, and the rack 1 can further realize the inclusion of the tested circuit board main body, so that other foreign matters are prevented from accidentally colliding with the circuit board body 12;
in the specific technical scheme of the embodiment, the driving assembly comprises a servo motor 5 and a transmission piece, the servo motor 5 is fixedly arranged on the outer side of the rack 1, and an output shaft is connected with the rotating shaft 6 through the transmission piece; wherein specificly, the driving medium can be worm wheel and worm, the worm wheel is fixed cup joint on axis of rotation 6, the coaxial fixed connection of output shaft of worm and servo motor 5, and be connected with the worm wheel meshing, in this embodiment, servo motor 5 drives the worm wheel rotation through the worm, and then it is rotatory to drive axis of rotation 6, thereby control rolling disc 3 and rotate, the user accessible is to servo motor 5 control, make rolling disc 3 turned angle at every turn be one hundred eighty degrees, realize the upper and lower position switching of once two test table face 4.
In the preferred technical solution in this embodiment, the plurality of fixing assemblies are distributed around the testing table top 4, each fixing assembly includes a rotating rod 15, a fixture block 14 and a spring 16, an installation groove 13 is formed in a side edge of the testing table top 4, the middle part of the rotating rod 15 is rotatably disposed in the installation groove 13 through a rotating shaft 20, the fixture block 14 is fixedly disposed at the top end of the rotating rod 15, the part of the rotating rod 15 above the rotating shaft 20 is connected with the side wall of the installation groove 13 through the spring 16, and the spring 16 applies an acting force towards the center of the testing table top 4 to the rotating rod 15; in specific this embodiment, through spring 16's effect, 15 upper ends of dwang have to the tendency of rotating near the 4 centers of test table face, and when circuit board plate body 12 placed on test table face 4, fixture block 14 applyed the extrusion effort to circuit board plate body 12, and under the cooperation of a plurality of fixed subassemblies, circuit board plate body 12 was fixed in test table face 4's middle part by the centre gripping, and when the user needed dismouting circuit board plate body 12, it can to stir fixture block 14 to the outside.
In an embodiment of the present invention, the flying probe testing apparatus further includes: the adjusting component is used for adjusting the fixing force of the fixing component on the circuit board body 12, when the fixing component is positioned on the upper side of the rotating disc 3, the adjusting component enhances the fixing force, and when the fixing component is positioned on the lower side of the rotating disc 3, the adjusting component weakens the fixing force; specifically, by arranging the adjusting assembly, the fixing force of the fixing assembly can be dynamically adjusted, when the circuit board body 12 is positioned at the upper side to be tested, the circuit board body is subjected to larger fixing force, so that the position deviation is not easy to generate, and when the circuit board body 12 is positioned at the lower side, the circuit board body 12 is convenient for a user to disassemble and assemble due to smaller fixing force;
according to a further preferable technical scheme, the adjusting assembly comprises a traction piece, two second permanent magnets 18 and a plurality of elastic ropes 19, the two second permanent magnets 18 correspond to the two test table boards 4 respectively, a pair of movable cavities 17 is formed in the rotating disc 3, the movable cavities 17 extend along the radial direction of the rotating disc 3, an extension line penetrates through the middle point of each test table board 4, the second permanent magnets 18 are arranged in the movable cavities 17 in a sliding mode, one ends, far away from the circle center of the rotating disc 3, of the second permanent magnets are connected with the lower ends of the rotating rods 15 through the elastic ropes 19 respectively, the traction piece is arranged in the middle of the rotating disc 3, the traction piece always exerts repulsive acting force on the second permanent magnets 18 located above the traction piece, and attractive acting force is exerted on the second permanent magnets 18 located below the traction piece; in specific this embodiment, when second permanent magnet 18 is in the upside, it receives the repulsive force who draws the piece, be in the upper end of activity chamber 17, and second permanent magnet 18 is in the downside, and receive the attractive force who draws the piece, and then the second permanent magnet 18 of upper end keeps away from the centre of a circle of rolling disc 3 more, thereby corresponding stretch length of stretch cord 19 is littleer, it is littleer to the pulling force of dwang 15, and then be in the fixed subassembly of upside, dwang 15 upper end fixture block 14 is bigger to the centre gripping dynamics of circuit board plate body 12, and downside stretch length of stretch cord 19 is bigger, the pulling force to dwang 15 is bigger, thereby can balance the pulling force of more springs 16, convenient to use person dials fixture block 14 to the outside fast.
In the preferred technical scheme in the embodiment, the traction member is an adjusting disc 8, the middle part of the rotating disc 3 is provided with an installation cavity 77 for rotatably installing the adjusting disc 8, a first permanent magnet 11 is fixedly arranged in the adjusting disc 8, the adjusting disc 8 is formed by splicing a first semicircular disc 9 and a second semicircular disc 10, the first semicircular disc 9 is made of a material with higher density than the second semicircular disc 10 and is positioned at the lower side of the first semicircular disc, and the magnetic pole at the upper end of the first permanent magnet 11 is the same as the magnetic pole at one end, close to the center of the rotating disc 3, of the second permanent magnet 18; in this embodiment, because the center of gravity of the adjustment dial 8 is distributed unevenly, in the process of rotating the rotating dial 3, the adjustment dial 8 does not rotate along with the rotating dial 3, the first half disc 9 is always kept at the lower side, and then the position of the first permanent magnet 11 does not change, when the second permanent magnet 18 rotates to the upper side, the second permanent magnet receives the repulsive force of the first permanent magnet 11, and when the second permanent magnet rotates to the lower side, the second permanent magnet receives the attractive force of the first permanent magnet 11.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. A flying probe testing device for detecting a printed circuit board comprises a rack (1), a flying probe testing machine (2) and a fixing mechanism for fixing the circuit board, wherein the flying probe testing machine (2) is fixedly arranged at the top end of the rack (1), and the fixing mechanism comprises:
the rotating disc (3) is rotationally arranged on the rack (1) through a rotating shaft (6) and is positioned under the flying probe testing machine (2), a pair of testing table boards (4) are symmetrically arranged on the side edge of the rotating disc (3), and the testing table boards (4) are used for placing circuit board bodies (12);
the two fixing components are respectively arranged on the test table board (4) and used for fixing the circuit board body (12) on the test table board (4);
drive assembly for provide required drive power when rolling disc (3) is rotatory, fixed subassembly distribute in all sides of test table face (4), fixed subassembly includes dwang (15) and fixture block (14) and spring (16), mounting groove (13) have been seted up to the side of test table face (4), dwang (15) middle part rotate through pivot (20) dispose in mounting groove (13), fixture block (14) fixed dispose in the top of dwang (15), dwang (15) are in pivot (20) top part and pass through spring (16) are connected with mounting groove (13) lateral wall, spring (16) are right dwang (15) are applyed the effort towards test table face (4) center, it still includes to fly needle testing arrangement: adjusting part for adjust fixed subassembly is to the fixed dynamics of circuit board plate body (12), works as fixed subassembly is in during rolling disc (3) upside, adjusting part strengthens its fixed dynamics, works as fixed subassembly is in during rolling disc (3) downside, adjusting part weakens its fixed dynamics, adjusting part is including pulling piece and two second permanent magnet (18) and a plurality of stretch cord (19), two second permanent magnet (18) respectively with two test table face (4) correspond, a pair of activity chamber (17) have been seted up to rolling disc (3) inside, activity chamber (17) are followed rolling disc (3) radially extend, and the extension line passes the mid point of test table face (4), second permanent magnet (18) slide configuration in activity chamber (17), and the one end of keeping away from rolling disc (3) is connected with the lower extreme of a plurality of (15) respectively through a plurality of dwang stretch cord (19) in the centre of a circle, and the one end of keeping away from rolling disc (3) is connected with the lower extreme of a plurality of (15) respectively The traction piece is arranged in the middle of the rotating disc (3), and exerts repulsive force on the second permanent magnet (18) positioned above and attractive force on the second permanent magnet (18) positioned below all the time.
2. The flying probe testing device for detecting the printed circuit board as claimed in claim 1, wherein the frame (1) has a frame structure with a side wall and a top wall, the flying probe testing machine (2) is fixedly arranged on the top wall of the frame (1), the rotating shaft (6) is rotatably connected with the side wall of the frame (1), and the lower part of the rotating disc (3) extends out of the frame (1).
3. The flying probe testing device for detecting the printed circuit board as claimed in claim 1, wherein the driving assembly comprises a servo motor (5) and a transmission member, the servo motor (5) is fixedly arranged outside the frame (1), and the output shaft is connected with the rotating shaft (6) through the transmission member.
4. The flying probe testing device for detecting the printed circuit board as claimed in claim 1, wherein the traction member is an adjusting disc (8), the middle part of the rotating disc (3) is provided with an installation cavity (7) for rotatably installing the adjusting disc (8), a first permanent magnet (11) is fixedly arranged inside the adjusting disc (8), the adjusting disc (8) is formed by splicing a first half disc (9) and a second half disc (10), the first half disc (9) is made of a material with higher density than the second half disc (10) and is positioned at the lower side of the first half disc, and the magnetic pole at the upper end of the first permanent magnet (11) is the same as the magnetic pole at one end, close to the center, of the second permanent magnet (18), of the second permanent magnet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110718252.8A CN113466659B (en) | 2021-06-28 | 2021-06-28 | Flying probe testing device for printed circuit board detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110718252.8A CN113466659B (en) | 2021-06-28 | 2021-06-28 | Flying probe testing device for printed circuit board detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113466659A CN113466659A (en) | 2021-10-01 |
| CN113466659B true CN113466659B (en) | 2022-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110718252.8A Active CN113466659B (en) | 2021-06-28 | 2021-06-28 | Flying probe testing device for printed circuit board detection |
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| CN (1) | CN113466659B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8166446B2 (en) * | 2007-09-13 | 2012-04-24 | Jabil Circuit, Inc. | Flexible test fixture |
| CN201589849U (en) * | 2009-09-22 | 2010-09-22 | 吴茂祥 | Printed circuit substrate testing mechanism integrating flying probe testing |
| CN204303790U (en) * | 2014-12-31 | 2015-04-29 | 北京七星华创电子股份有限公司 | A kind of for clamping and the device of rotating disk thing |
| DE102015113046A1 (en) * | 2015-08-07 | 2017-02-09 | Xcerra Corp. | Positioning device for a parallel tester for testing printed circuit boards and parallel testers for PCB testing |
| CN213023389U (en) * | 2020-08-26 | 2021-04-20 | 乐枫科技(苏州)有限公司 | Product function test module |
| CN112986802B (en) * | 2021-03-09 | 2021-11-02 | 深圳市东方宇之光科技股份有限公司 | Flying probe tester detects uses PCB conveying mechanism |
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2021
- 2021-06-28 CN CN202110718252.8A patent/CN113466659B/en active Active
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