CN118348284A

CN118348284A - Auxiliary device used during circuit board test

Info

Publication number: CN118348284A
Application number: CN202410610501.5A
Authority: CN
Inventors: 毛伟平; 李森美
Original assignee: Jiangxi Changpin Intelligent Technology Co ltd
Current assignee: Jiangxi Changpin Intelligent Technology Co ltd
Priority date: 2024-05-16
Filing date: 2024-05-16
Publication date: 2024-07-16

Abstract

The invention relates to the technical field of circuit board testing, and discloses an auxiliary device used for testing a circuit board, which comprises a test bench, wherein the test bench is connected with a lifting plate in a sliding manner through four groups of polished rods, a plurality of groups of conductive test modules are arranged on the lifting plate and are used for being abutted against conductive contact pieces of the circuit board during testing, an equipment box is fixed at the top of the polished rods, and a display screen module is arranged at the front side of the equipment box; further comprises: the invention can limit and fix a plurality of groups of circuit boards at one time through a plurality of designed limiting clamping mechanisms, so that the plurality of groups of circuit boards can be tested at one time by matching a plurality of groups of conductive test modules.

Description

Auxiliary device used during circuit board test

Technical Field

The invention relates to the technical field of circuit board testing, in particular to an auxiliary device for circuit board testing.

Background

The circuit board is called a printed circuit board, is an indispensable component in the electronic equipment in the current scientific age, and can lead the circuit to be miniaturized and visualized, thereby being convenient for the mass production of fixed circuits, optimizing the layout of electric appliances and testing the quality of the circuit board after the production of the circuit board is completed.

At present, in the prior art, the traditional cable socket is commonly adopted to connect the circuit board, during the test, need the simultaneous operation of inspector both hands insert the cable socket with the circuit board, the counterpoint degree of difficulty is big, be difficult to insert the circuit board in the cable socket fast, the operation step is more and loaded down with trivial details during the test, the operation degree of difficulty is big, also need take out the turn-over through the inspector and put into again simultaneously, just can realize carrying out the comprehensive test of tow sides to the circuit board, can cost in time, only detect a circuit board at last during the test, the circuit board quantity that waits to detect is still limited, when carrying out the test in batches to the circuit board, efficiency is still too low.

Disclosure of Invention

The invention aims to provide an auxiliary device for testing a circuit board, which aims to solve the problems of more and complicated operation steps, high operation difficulty and low testing efficiency in the prior art for testing the circuit board.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an auxiliary device during circuit board test, includes the testboard, there is the lifter plate through four sets of polished rod sliding connection on the testboard, install multiunit conductive test module on the lifter plate, it is used for the butt on the conductive contact of circuit board when testing, and the top of polished rod is fixed with the equipment box, the display screen module is installed to the front side of equipment box; further comprises: the test bench comprises a test bench, a first bearing seat, a first rotating shaft, a rotating shell, a clamping driving mechanism, a plurality of groups of limiting clamping mechanisms and a cleaning mechanism, wherein the first bearing seat is arranged on the test bench and symmetrically distributed on two sides; the dust removing mechanism is arranged at the top of the equipment box and used for synchronously carrying out linkage maintenance on the equipment box and the display screen module during testing.

Preferably, the clamping driving mechanism comprises a plurality of bidirectional screws which are distributed in a linear array, the bidirectional screws are fixedly welded through polished rods, the outer sides of the polished rods are rotatably sleeved with second bearings, the bottoms of the second bearings are fixed on the rotating shell through bolts, driving plates which are symmetrically distributed are sleeved on the two sides of each bidirectional screw through nut threads, the bottoms of the driving plates are fixedly sleeved with first gears through sliding grooves formed in the rotating shell, the tops of the first gears are fixedly sleeved with racks, one ends of the racks are fixedly connected with pushing pieces, one ends of the limiting clamping mechanisms are fixedly connected with the driving plates, the first stepping motors are fixedly connected with first stepping motors on the second bearing seats, the first stepping motors are fixedly connected with second gears through couplings, third gears are fixedly sleeved on the bottoms of the second gears, and the clamping driving mechanisms which are designed in a sleeved mode are fixedly arranged on the outer sides of the polished rods of the bidirectional screws can realize simultaneous rotation of the bidirectional screws.

Preferably, the limiting and clamping mechanism comprises clamping plates which are far away from the driving plate and fixedly connected with one end of the rotating shell, two clamping plates are symmetrically arranged, strip-shaped grooves which are matched with the thickness of the circuit board to be tested are formed in opposite sides of the clamping plates, convex plates are fixed at the bottoms of the strip-shaped grooves, the output ends of the pushing pieces are used for pushing the circuit board to be tested to move and are abutted against the inner wall of one side of the strip-shaped groove, and the designed limiting and clamping mechanism is convenient for clamping and fixing the circuit board to be tested.

Preferably, the pushing piece comprises a hollow shell fixedly connected with one end of the rack through a bolt, the two ends of the hollow shell are respectively and slidably connected with a first connecting rod, one end of the first connecting rod is fixedly connected with a push rod through a bolt, the outer side of the push rod is slidably sleeved with a first limiting plate, the first limiting plate is fixedly connected with the clamping plate through the bolt, one end of the push rod, which is far away from the first connecting rod, is fixedly provided with a push plate, and the designed pushing piece is convenient for limiting a circuit board to be tested further.

Preferably, the turnover driving mechanism comprises a fourth gear fixedly sleeved at the end part of the first rotating shaft, an incomplete gear in driving fit with the fourth gear is arranged below the fourth gear, a third rotating shaft is fixedly sleeved in a middle hole of the incomplete gear, two groups of third rotating shafts are symmetrically arranged on two sides of the test bench, one group of third rotating shafts is fixedly connected with a second stepping motor through a shaft coupling, the outer side of each third rotating shaft is rotationally connected with a third bearing seat, the bottom of each third bearing seat is fixedly connected with a second limiting plate through a screw, the second limiting plates are fixed with the bottom of the test bench through bolts, a supporting plate is arranged at the bottom of each second stepping motor, two sides of each second stepping motor are fixedly connected with the top of each supporting plate through a fixing plate, a first transmission part is connected between each cleaning mechanism and each third rotating shaft in a transmission mode, and the designed turnover driving mechanism is convenient for automatically turnover adjustment of the test surface of the circuit board clamped and positioned by the limiting clamping mechanism.

Preferably, the cleaning mechanism comprises a sealing piston box, the sealing piston box is fixedly connected with the abutting plate through a fixing plate, sealing bearings are installed at the inner parts of the left end and the right end of the sealing piston box in a jogged mode, a first reciprocating screw rod penetrates through the inner part of the sealing bearings, a first sliding seat is sleeved on the surface of the first reciprocating screw rod, a piston plate is fixedly installed on the outer ring of the first sliding seat, the piston plate is in sliding connection with the inner wall of the sealing piston box, an air inlet one-way valve and an air outlet one-way valve are installed at one end of the sealing piston box in a jogged mode respectively, an air inlet pipe is connected with the outer end of the air inlet one-way valve, an air outlet pipe is connected with the outer end of the air outlet pipe, one end of the sealing piston box is far away from a shunt pipe, one side of the shunt pipe is inlaid with a plurality of air injection heads, a plurality of the first reciprocating screw rods are connected through polished rods, the output end of a first transmission piece is in transmission connection with the first reciprocating screw rod located at one end, and the designed cleaning mechanism can clean residual metal particles on the circuit board in a test mode, and the test mode is difficult to clean relative movement of the metal particles between the circuit board and the conductive module is prevented from being worn and the residual metal particles.

Preferably, the first driving medium includes with the fixed big band pulley that cup joints of third pivot, big band pulley's outside cover has first driving belt, big band pulley passes through first driving belt transmission is connected with first little band pulley, first little band pulley is fixed cup joints with the polished rod outside of the first reciprocating screw rod that is located one end, dust removal mechanism with the transmission is connected with the second driving medium between the first reciprocating screw rod, and the first driving medium of design can be after the upset automatic linkage cleaning mechanism carries out work.

Preferably, the dust removing mechanism comprises a third limiting plate fixed at the front side edge of the top of the equipment box, a fourth bearing seat is symmetrically arranged at one side of the third limiting plate, a second reciprocating screw rod is connected in the fourth bearing seat in a rotating manner, a second sliding seat is sleeved on the surface of the second reciprocating screw rod, sliding blocks and fixing rods are fixedly connected to the two ends of the outer side of the second sliding seat respectively through fixing blocks, a limiting groove is formed in the third limiting plate, the sliding blocks are slidably connected in the limiting groove, a first linkage plate is fixed at one end of the sliding blocks through bolts, first bristles are arranged at the left side and the right side of the first linkage plate, a collecting box is detachably arranged at the left end and the right side of the equipment box, a second linkage plate is fixedly connected with the bottom of the fixing rods, one side of the second linkage plate is close to the equipment box, the output end of a second transmission part is in transmission connection with one side end part of the second reciprocating screw rod, the designed dust removing mechanism can slide left and right on the upper end face of the equipment box, dust can be easily cleaned by sliding, dust can fall into the equipment box after the dust can be easily and can be easily cleaned, dust can fall into the equipment can be effectively cleaned by the equipment, and can be prevented from falling into the equipment, and the equipment can be easily cleaned, and the dust can be easily and can be easily cleaned, and the equipment can be easily cleaned.

Preferably, the second driving medium includes with the coaxial second small pulley that sets up of first small pulley, the fixed cup joint of second small pulley is in the polished rod outside of first reciprocal lead screw, the outside cover of second small pulley has second driving belt, big band pulley passes through second driving belt transmission is connected with the third small pulley, the third small pulley with the polished rod outside of second reciprocal lead screw one side tip is fixed cup joint, and the second driving medium of design is convenient for produce the linkage action at clearance mechanism during operation and drives dust removal mechanism and also work together.

Preferably, rectangular through grooves are formed in the test bench at positions corresponding to the limiting clamping mechanisms, a plurality of rubber rotating rollers are uniformly distributed in the rectangular through grooves, the rubber rotating rollers are rotationally connected with the inner walls of the two sides of the rectangular through grooves, a connecting plate box is arranged right below the rectangular through grooves, a plurality of limiting rods are fixed on the top of the test bench and on the two sides of the groove top of the rectangular through grooves, the designed rectangular through grooves and the rubber rotating rollers facilitate stable falling of circuit boards after testing to the connecting plate box for collection, and the limiting rods can limit limiting positions of the clamping plates in a loosening state.

Compared with the prior art, the invention has the beneficial effects that:

1. According to the invention, the plurality of groups of circuit boards can be limited and fixed at one time through the designed limiting clamping mechanisms, so that the plurality of groups of circuit boards can be tested at one time by matching the plurality of groups of conductive test modules.

2. According to the invention, the designed turnover driving mechanism is convenient for automatically turnover and adjustment of the test surface of the circuit board clamped and positioned by the limiting clamping mechanism, so that the circuit board to be tested can be clamped for turnover detection, and the automatic test of the front side and the back side of the circuit board is realized, thereby saving the trouble of manual turnover and further improving the test efficiency of the circuit board.

3. The cleaning mechanism designed by the invention can purge and clean the residual metal particles on the circuit board during testing, and prevent excessive residual metal particles which are worn by relative movement between the conductive test module and the circuit board from being difficult to clean.

4. The dust removing mechanism designed by the invention can slide left and right on the upper end surface of the equipment box to clean dust, and the cleaned dust can fall into the inner cavity of the collecting box, so that the probability of equipment aging caused by dust falling easily due to long-term exposure of the detection equipment can be reduced, the detection equipment can be effectively cleaned and protected, and the trouble of manual cleaning and wiping can be saved

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic view of a partial structure of the present invention;

FIG. 3 is a schematic view of a clamping driving mechanism according to the present invention;

FIG. 4 is a schematic diagram of a limiting and clamping mechanism according to the present invention;

FIG. 5 is an enlarged view of a part of the clamping driving mechanism of the present invention;

FIG. 6 is a schematic diagram of the structure of the tilting drive mechanism of the present invention;

FIG. 7 is a schematic view of a cleaning mechanism according to the present invention;

FIG. 8 is a schematic view of the dust removing mechanism of the present invention;

FIG. 9 is a schematic diagram of a second driving member according to the present invention;

FIG. 10 is a schematic view of the structure of the first and second linkage plates of the present invention;

FIG. 11 is a schematic view of a part of the structure of the test bench according to the present invention.

In the figure: 1. a test bench; 2. a lifting plate; 3. a conductive test module; 4. an equipment box; 5. a display screen module; 6. a first bearing seat; 7. a first rotating shaft; 8. rotating the shell; 9. a clamping driving mechanism; 10. a limiting clamping mechanism; 11. a turnover driving mechanism; 12. an abutment plate; 13. a cleaning mechanism; 14. a dust removing mechanism; 15. a bidirectional screw; 16. a second bearing seat; 17. a driving plate; 18. a first gear; 19. a rack; 20. a pushing member; 21. a first stepping motor; 22. a second gear; 23. a third gear; 24. a clamping plate; 25. a bar-shaped groove; 26. a convex plate; 27. a hollow shell; 28. a first connecting rod; 29. a push rod; 30. a first limiting plate; 31. a push plate; 32. a fourth gear; 33. an incomplete gear; 34. a third rotating shaft; 35. a second stepping motor; 36. a third bearing seat; 37. a second limiting plate; 38. a support plate; 39. a first transmission member; 40. sealing the piston box; 41. sealing the bearing; 42. a first reciprocating screw rod; 43. a first slider; 44. a piston plate; 45. an air inlet one-way valve; 46. an air outlet one-way valve; 47. an air inlet pipe; 48. an air outlet pipe; 49. a shunt; 50. a jet head; 51. a large belt wheel; 52. a first drive belt; 53. a first small belt wheel; 54. a second transmission member; 55. a third limiting plate; 56. a fourth bearing housing; 57. a second reciprocating screw rod; 58. a second slider; 59. a slide block; 60. a fixed rod; 61. a limit groove; 62. a first linkage plate; 63. a first bristle; 64. a collection box; 65. a second linkage plate; 66. a second bristle; 67. a second small belt wheel; 68. a second drive belt; 69. a third small belt wheel; 70. rectangular through grooves; 71. a rubber roller; 72. a plate receiving box; 73. and a limit rod.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Embodiment one: referring to fig. 1-3, an auxiliary device for testing a circuit board in the drawings includes a test board 1, wherein the test board 1 is slidably connected with a lifting board 2 through four groups of polished rods, a plurality of groups of conductive test modules 3 are installed on the lifting board 2 and are used for being abutted against conductive contact pieces of the circuit board in the test process, an equipment box 4 is fixed at the top of the polished rods, a display screen module 5 is installed at the front side of the equipment box 4, the conductive test modules 3 are ejector pins, the ejector pins are provided with a plurality of conductive test modules 3, the conductive test modules 3 can be connected to a driving circuit board of the display screen module 5 through cables (not shown in the drawings), the driving circuit board of the display screen module 5 can be connected to a power module, and the power module can be a transformer; when the circuit board is detected, when the conductive testing module 3 is abutted against the conductive contact piece on the circuit board, if the equipment is in an electrified state, the conductive testing module 3 and the conductive contact piece are electrified to be displayed on the display screen module 5 so as to judge whether the circuit board is qualified; further comprises: the test bench comprises first bearing seats 6 which are symmetrically distributed on two sides of the test bench 1, wherein a first rotating shaft 7 is rotationally connected to the first bearing seats 6, a rotating shell 8 is fixedly connected between the two first rotating shafts 7, a clamping driving mechanism 9 is arranged on the rotating shell 8, a plurality of groups of limiting clamping mechanisms 10 which are used for fixing a circuit board are connected to the output end of the clamping driving mechanism 9 in a transmission manner, two sides of the test bench 1 are respectively provided with a turnover driving mechanism 11 which is used for automatically turnover and adjusting a test surface of the circuit board clamped and positioned by the limiting clamping mechanisms 10, a plurality of groups of abutting plates 12 are symmetrically arranged on the test bench 1, the tail ends of the limiting clamping mechanisms 10 are in abutting contact with the tops of the abutting plates 12, and a cleaning mechanism 13 which is used for blowing and cleaning residual metal particles on the circuit board during testing is arranged on one side of the abutting plates 12; the dust removing mechanism 14 is arranged at the top of the equipment box 4, and the dust removing mechanism 14 is used for synchronously carrying out linkage maintenance on the equipment box 4 and the display screen module 5 during testing.

In this scheme, a plurality of spacing fixture 10 of design can once only carry out spacing fixedly to the multiunit circuit board to can lean on the cooperation of multiunit conductive test module 3 to once only test multiunit circuit board, compare with the mode that current single circuit board can only carry out the test, the circuit board quantity of testing at every turn improves, the test efficiency to the circuit board is improved, and the upset actuating mechanism 11 of design is convenient for carry out the automatic upset regulation of test face to the circuit board of spacing fixture 10 centre gripping location, alright carry out upset detection with the centre gripping circuit board that awaits measuring, realize the automatic test to circuit board positive and negative two sides, thereby save the trouble of manual upset, further improved the test efficiency to the circuit board.

Further, referring to fig. 3 and 5, in order to implement simultaneous rotation of the plurality of bidirectional screws 15, the clamping driving mechanism 9 includes a plurality of bidirectional screws 15 distributed in a linear array, the plurality of bidirectional screws 15 are welded and fixed by a polished rod, and the outer side of the polished rod is rotationally sleeved with a second bearing seat 16, the bottom of the second bearing seat 16 is fixed on the rotating shell 8 by bolts, two sides of each bidirectional screw 15 are sleeved with driving plates 17 distributed symmetrically by nut threads, the bottom of the driving plates 17 is slidingly connected with a sliding groove formed in the rotating shell 8 by the polished rod, the middle of the bidirectional screws 15 is fixedly sleeved with a first gear 18, the top of the first gear 18 is meshed and connected with a rack 19, one end of the rack 19 is fixedly connected with a pushing piece 20, one end of the limiting clamping mechanism 10 is fixedly connected with the driving plates 17, the second bearing seat 16 at one side end of the rotating shell 8 is fixedly connected with a first stepping motor 21, the first stepping motor 21 is fixedly connected with a second gear 22 by a coupling, the bottom of the second gear 22 is meshed and connected with a third gear 23, and the third gear 23 is fixedly sleeved with the outer side of the polished rod of the bidirectional screws 15.

Principle of synchronously completing clamping and loosening actions: by starting the first stepping motor 21 to rotate, the first stepping motor 21 drives the second gear 22 to rotate, the second gear 22 drives the third gear 23 to rotate, the third gear 23 drives the two-way screws 15 to rotate together, two driving plates 17 on each two-way screw 15 move close to and away from each other, the first gear 18 rotates to drive the racks 19 to move, the driving plates 17 can drive the limiting and clamping mechanism 10 to clamp or relax when moving, the racks 19 can drive the pushing piece 20 to move when moving, and then the circuit board can be pushed to move when clamping.

Further, referring to fig. 4, in order to facilitate clamping and fixing of the circuit board to be tested, the limiting and clamping mechanism 10 includes two clamping plates 24 fixedly connected with one end of the driving plate 17 far away from the rotating shell 8, two clamping plates 24 are symmetrically arranged, strip-shaped grooves 25 adapting to the thickness of the circuit board to be tested are respectively formed on opposite sides of the two clamping plates 24, a convex plate 26 is fixed at the bottom of each strip-shaped groove 25, and an output end of the pushing member 20 is used for pushing the circuit board to be tested to move and abut against an inner wall of one side of each strip-shaped groove 25.

Principle of clamping circuit board: the circuit board to be tested is placed on the convex plate 26 between the two clamping plates 24, and the clamping driving mechanism 9 drives the bidirectional screw rod 15 to rotate, so that the two driving plates 17 are driven to move close to each other, the driving plates 17 drive the clamping plates 24 to link, and the circuit board to be tested is clamped in the strip-shaped groove 25 between the two clamping plates 24.

Further, referring to fig. 4, in order to facilitate further limiting of the circuit board to be tested, the pushing member 20 includes a hollow shell 27 fixedly connected to one end of the rack 19 by a bolt, two ends of the hollow shell 27 are slidably connected to a first connecting rod 28, one end of the first connecting rod 28 is fixedly connected to a push rod 29 by a bolt, a first limiting plate 30 is slidably sleeved on the outer side of the push rod 29, the first limiting plate 30 is fixedly connected to the clamping plate 24 by a bolt, and a push plate 31 is fixed to one end of the push rod 29 far away from the first connecting rod 28.

Principle of pushing and clamping circuit board: the bidirectional screw 15 drives the first gear 18 to rotate, the first gear 18 drives the rack 19 to move, one end of the rack 19 pushes the hollow shell 27 to move, the first connecting rod 28 also slides in the hollow shell 27 when the clamping plates 24 move close to each other, so that the first connecting rod 28 drives the push rod 29 to move, the push rod 29 slides in the first limiting plate 30 and drives the push plate 31 to move, the push plate 31 pushes the circuit board between the two clamping plates 24 to move, and just after the clamping plates 24 clamp the circuit board, the push plate 31 pushes one end of the circuit board against one side inner wall of the strip-shaped groove 25, and the other end of the circuit board pushes the push plate 31, so that synchronous positioning of the length and the width directions of the circuit board is realized.

Further, referring to fig. 6, in order to automatically turn over and adjust the test surface of the circuit board clamped and positioned by the limiting and clamping mechanism 10, the turning driving mechanism 11 includes a fourth gear 32 fixedly sleeved with the end of the first rotating shaft 7, an incomplete gear 33 in driving fit with the fourth gear 32 is arranged below the fourth gear 32, a third rotating shaft 34 is fixedly sleeved in a middle hole of the incomplete gear 33, two groups of third rotating shafts 34 are symmetrically arranged on two sides of the test bench 1, one end of one group of third rotating shafts 34 is fixedly connected with a second stepping motor 35 through a coupling, the outer side of the third rotating shaft 34 is rotatably connected with a third bearing seat 36, the bottom of the third bearing seat 36 is fixedly connected with a second limiting plate 37 through a screw, the second limiting plate 37 is fixedly connected with the bottom of the test bench 1 through a bolt, a supporting plate 38 is arranged at the bottom of the second stepping motor 35, two sides of the second stepping motor 35 are fixedly connected with the top of the supporting plate 38 through fixing plates, and a first transmission piece 39 is in driving connection between the cleaning mechanism 13 and the third rotating shafts 34.

Principle of overturning circuit board: before the circuit board is overturned, one tooth socket of the end tooth at one side of the incomplete gear 33 and one tooth socket of the fourth gear 32 enter a meshing state, when the overturned action is executed, the second stepping motor 35 drives the incomplete gear 33 to rotate, the output shaft of the second stepping motor 35 is controlled by a program to rotate at any angle, when the overturned action is executed, the incomplete gear 33 and the fourth gear 32 only need to be meshed from the beginning to the end of the disengagement, then the rotation of the second stepping motor 35 is immediately stopped, namely, the number of turns of the incomplete gear 33 is just from the meshing state with the fourth gear 32 to the disengaging state, at the moment, the fourth gear 32 just can rotate by half a turn, the first rotating shaft 7 can also rotate 180 degrees in a linkage way, so that the circuit board clamped and positioned by the limiting and clamping mechanism 10 on the rotating shell 8 is driven to overturn from one side to the other side, the circuit board to be clamped and to be tested can be overturned, automatic test is realized, after the end of the incomplete gear 33 rotates, the rest toothless parts do not react with the fourth gear 32, and then the transmission part is driven by the first cleaning mechanism 39 to produce a linkage action when the toothless part is driven by the first cleaning mechanism 13.

Further, referring to fig. 11, a rectangular through groove 70 is formed at a position on the test bench 1 corresponding to the limiting and clamping mechanism 10, after the test is finished, the clamping action is released, the circuit board moves from the rectangular through groove 70, a plurality of rubber rotating rollers 71 are uniformly distributed in the rectangular through groove 70, the rubber rotating rollers 71 are rotationally connected with inner walls of two sides of the rectangular through groove 70, when the rectangular through groove 70 moves, friction movement is generated between the two sides of the circuit board and the rubber rotating rollers 71, the circuit board can move along a straight line when falling, in addition, the falling speed can be reduced, the effect of buffering the falling circuit board is indirectly achieved, a connecting plate box 72 is arranged under the rectangular through groove 70, the released circuit board falls into the connecting plate box 72 for collection, a plurality of limiting rods 73 are fixed on two sides of the top of the test bench 1 and on two sides of the groove top of the rectangular through groove 70, and the limiting rods 73 can limit limiting limit positions of the clamping plate 24 in a releasing state.

Embodiment two: referring to fig. 1 and 7, the present embodiment is further described with respect to the first embodiment, and the difference is that the optimization after the circuit board test is implemented.

Specifically, the cleaning mechanism 13 includes a sealed piston box 40, the sealed piston box 40 is fixedly connected with the abutting plate 12 through a fixed plate, a sealed bearing 41 is embedded and installed in the inner portion of the left end and the right end of the sealed piston box 40, a first reciprocating screw rod 42 penetrates through the inner portion of the sealed bearing 41, a first sliding seat 43 is sleeved on the surface of the first reciprocating screw rod 42, a piston plate 44 is fixedly installed on the outer ring of the first sliding seat 43, the piston plate 44 is slidably connected with the inner wall of the sealed piston box 40, an air inlet one-way valve 45 and an air outlet one-way valve 46 are respectively embedded and installed at one end of the sealed piston box 40, an air inlet pipe 47 is connected to the outer end of the air outlet one-way valve 45, an air outlet pipe 48 is connected with an air outlet pipe 48, one end far away from the sealed piston box 40 is communicated with a shunt pipe 49, one side of the shunt pipe 49 is embedded with a plurality of air injection heads 50, a plurality of first reciprocating screw rods 42 are connected through polish rods, the output end of a first transmission piece 39 is in transmission connection with the first reciprocating screw rod 42, the designed cleaning mechanism 13 can clean residual metal particles on the circuit board during testing, and prevent relative movement between the conductive testing module 3 and the circuit board from generating excessive abrasion and hard cleaning residual metal particles;

meanwhile, in order to enable the automatic linkage cleaning mechanism to work after overturning, the first transmission piece 39 comprises a large belt pulley 51 fixedly sleeved with the third rotating shaft 34, a first transmission belt 52 is sleeved on the outer side of the large belt pulley 51, a first small belt pulley 53 is connected to the large belt pulley 51 in a transmission mode through the first transmission belt 52, the first small belt pulley 53 is fixedly sleeved on the outer side of a polished rod of the first reciprocating screw rod 42 located at one end, and a second transmission piece 54 is connected between the dust removing mechanism 14 and the first reciprocating screw rod 42 in a transmission mode.

Principle of sweeping and cleaning circuit board: after the circuit board testing action is finished, the incomplete gear 33 continues to rotate, the rest toothless part cannot generate linkage reaction with the fourth gear 32 until one tooth of the incomplete gear 33 is just meshed with the fourth gear 32, the second stepping motor 35 is immediately stopped, the toothless part of the incomplete gear 33 rotates in the process to drive the large belt pulley 51 coaxial with the incomplete gear 33 to rotate, the large belt pulley 51 drives the first small belt pulley 53 to rotate through the first transmission belt 52, the diameter of the large belt pulley 51 is far larger than that of the first small belt pulley 53, so that the rotating speed of the large belt pulley 51 is smaller than that of the first small belt pulley 53, the first small belt pulley 53 is driven to rotate for a plurality of circles in the process, the reciprocating screw rod is driven to rotate in the sealing piston box 40 through the sealing bearing 41, then the first sliding seat 43 and the piston plate 44 are driven to reciprocate and match with the sealing piston box 40 to do piston motion, negative pressure is beneficial to be generated in the sealing piston box 40, external air is quantitatively extracted through the air inlet check valve 45 and the air inlet pipe 47, the quantitative air is extracted through the first small belt pulley 53, the diameter of the large belt pulley 51 is far larger than that the first small belt pulley 53, the rotating speed of the first small belt pulley 53 is driven to rotate for a plurality of circles, the reciprocating screw rod rotates in the process through the sealing piston box 40, the sealing piston plate 44 rotates through the sealing piston plate 50, the reciprocating screw rod is driven by the reciprocating screw rod, the reciprocating screw rod is matched with the piston rod, the reciprocating rod, negative air, and the reciprocating rod is conveniently to be blown out through the piston rod, and the constant air, and the air.

Embodiment III: referring to fig. 8-10, this embodiment will be further described with respect to other embodiments, with the difference that the usage environment of the equipment cabinet 4 is optimized.

Specifically, the dust removing mechanism 14 includes the third limiting plate 55 of fixing in equipment box 4 top front side edge department, the fourth bearing frame 56 is installed to one side symmetry of third limiting plate 55, the rotatory second reciprocating screw 57 that is connected with of fourth bearing frame 56, the surface cover of second reciprocating screw 57 is equipped with second slide 58, the outside both ends of second slide 58 are respectively through fixed block fixedly connected with slider 59 and dead lever 60, the spacing groove 61 has been seted up on the third limiting plate 55, slider 59 sliding connection is in spacing groove 61, the one end of slider 59 is through the bolt fastening first linkage plate 62, the left and right sides of first linkage plate 62 all is equipped with first brush hair 63, the collection box 64 is all demountable installation at both ends about equipment box 4, the bottom fixedly connected with second linkage plate 65 of dead lever 60, one side that the second linkage plate 65 is close to equipment box 4 is equipped with second brush hair 66, the output of second driving member 54 and one side end transmission connection of second reciprocating screw 57, the dust removing mechanism 14 of design is cleaned to the check out the manual work and is cleaned the trouble of cleaning effectively.

Wherein, in order to be convenient for produce the linkage action and drive dust removal mechanism 14 also work together when clearance mechanism 13 works, second driving medium 54 includes the second small band pulley 67 that sets up with first small band pulley 53 is coaxial, the fixed cover of second small band pulley 67 is in the polished rod outside of first reciprocating screw 42, the outside cover of second small band pulley 67 has second driving belt 68, big band pulley 51 is connected with third small band pulley 69 through the transmission of second driving belt 68, third small band pulley 69 is fixed the cover with the polished rod outside of second reciprocating screw 57 one side tip.

Principle of maintenance of the equipment box 4: the first small belt pulley 53 also drives a second small belt pulley 67 which is coaxial with the first small belt pulley 53 to rotate, the second small belt pulley 67 drives a third small belt pulley 69 to rotate through a second transmission belt 68, the third small belt pulley 69 drives a second reciprocating screw rod 57 to rotate, the second reciprocating screw rod 57 drives a second sliding seat 58 to move, the second sliding seat 58 drives a first linkage plate 62 and a second linkage plate 65 to move, the first linkage plate 62 drives a first bristle 63 to move at the top of the equipment box 4 during movement, left and right cleaning is carried out on dust accumulation on the top of the equipment box 4, cleaned dust falls into an inner cavity of the collecting box 64 to be collected, the second linkage plate 65 drives a second bristle 66 to move, and the second bristle 66 automatically sweeps out dust on the surface of the equipment when being in contact with the surface of the display screen module 5, so that the probability that the equipment is aged due to dust easily falling into the equipment after long-term exposure of the detection equipment can be reduced.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An auxiliary device for testing a circuit board, comprising:

The testing device comprises a testing table (1), wherein the testing table (1) is slidably connected with lifting plates (2) through four groups of polished rods, a plurality of groups of conductive testing modules (3) are installed on the lifting plates (2) and are used for being abutted on conductive contact pieces of a circuit board during testing, an equipment box (4) is fixed at the top of the polished rods, and a display screen module (5) is installed at the front side of the equipment box (4);

The method is characterized in that: further comprises:

The test bench comprises a test bench body, a first bearing seat (6) which is arranged on the test bench body and symmetrically distributed on two sides, wherein a first rotating shaft (7) is rotationally connected to the first bearing seat (6), a rotating shell (8) is fixedly connected between the two first rotating shafts (7), a clamping driving mechanism (9) is arranged on the rotating shell (8), a plurality of groups of limiting clamping mechanisms (10) which are used for fixing a circuit board are connected to the output end of the clamping driving mechanism (9) in a transmission manner, two sides of the test bench body are respectively provided with a turnover driving mechanism (11) which is used for automatically turnover and adjusting a test surface of the circuit board which is clamped and positioned by the limiting clamping mechanisms (10), a plurality of groups of supporting plates (12) are symmetrically arranged on the test bench body, the tail ends of the limiting clamping mechanisms (10) are in contact with the top of the supporting plates (12), and a cleaning mechanism (13) which is used for blowing and cleaning residual metal particles on the circuit board during testing is arranged on one side of the supporting plates (12);

The dust removing mechanism (14) is arranged at the top of the equipment box (4), and the dust removing mechanism (14) is used for synchronously carrying out linkage maintenance on the equipment box (4) and the display screen module (5) during testing.

2. The circuit board testing auxiliary device according to claim 1, wherein: clamping driving mechanism (9) are including a plurality of bi-directional screw rods (15) that are sharp array distribution, a plurality of through polished rod welded fastening between bi-directional screw rods (15), and the polished rod outside rotates and cup joints second bearing (16), the bottom of second bearing (16) is in through bolt fastening on rotating shell (8), every bi-directional screw rods (15) both sides all cup joint through the nut screw and are symmetrically distributed drive plate (17), the bottom of drive plate (17) pass through the polished rod with spout that sets up on rotating shell (8) carries out sliding connection, the middle part of bi-directional screw rods (15) is fixed to cup joint first gear (18), the top meshing of first gear (18) is connected with rack (19), the one end fixedly connected with impeller (20) of rack (19), the one end of spacing clamping mechanism (10) with drive plate (17) fixed connection, be located on second bearing (16) one side tip of rotating shell (8) fixedly connected with first step motor (21), first step motor (21) have through second gear (22) fixed connection with third gear (23) bottom (23) the second gear (23) is cup jointed in the second coupling.

3. The circuit board testing auxiliary device according to claim 2, wherein: spacing fixture (10) include with drive plate (17) keep away from grip block (24) of rotating shell (8) one end fixed connection, grip block (24) symmetry is equipped with two, two bar groove (25) with the circuit board thickness looks adaptation that awaits measuring have all been seted up to the opposite side of grip block (24), the bottom of bar groove (25) is fixed with flange (26), the output of impeller (20) is used for promoting the circuit board that awaits measuring and carries out the butt with one side inner wall of bar groove (25).

4. A circuit board testing auxiliary device according to claim 3, wherein: the pushing piece (20) comprises a hollow shell (27) fixedly connected with one end of the rack (19) through a bolt, two ends of the hollow shell (27) are slidably connected with a first connecting rod (28), one end of the first connecting rod (28) is fixedly provided with a push rod (29) through a bolt, the outer side of the push rod (29) is slidably sleeved with a first limiting plate (30), the first limiting plate (30) is fixedly connected with the clamping plate (24) through a bolt, and one end, away from the first connecting rod (28), of the push rod (29) is fixedly provided with a push plate (31).

5. The circuit board testing auxiliary device according to claim 1, wherein: the turnover driving mechanism (11) comprises a fourth gear (32) fixedly sleeved on the end part of the first rotating shaft (7), an incomplete gear (33) in transmission fit with the fourth gear (32) is arranged below the fourth gear (32), a third rotating shaft (34) is fixedly sleeved in a middle hole of the incomplete gear (33), two groups of third rotating shafts (34) are symmetrically arranged on two sides of the test bench (1), one end of each group of the third rotating shafts (34) is fixedly connected with a second stepping motor (35) through a coupler, the outer side of each third rotating shaft (34) is rotatably connected with a third bearing seat (36), the bottom of each third bearing seat (36) is fixedly connected with a second limiting plate (37) through a screw, the bottom of each second limiting plate (37) is fixedly connected with the bottom of the test bench (1) through a bolt, supporting plates (38) are arranged on the bottom of each second stepping motor (35), two sides of each second stepping motor (35) are fixedly connected with the top of each supporting plate (38) through a fixing plate, and a cleaning mechanism (13) is connected with a transmission piece (39).

6. The circuit board testing auxiliary device according to claim 5, wherein: the cleaning mechanism (13) comprises a sealing piston box (40), the sealing piston box (40) is fixedly connected with the abutting plate (12) through a fixing plate, sealing bearings (41) are installed in the inner embedded mode at the left end and the right end of the sealing piston box (40), first reciprocating screw rods (42) penetrate through the sealing bearings (41), first sliding seats (43) are sleeved on the surfaces of the first reciprocating screw rods (42), piston plates (44) are fixedly installed on the outer ring of the first sliding seats (43), the piston plates (44) are connected with the inner wall of the sealing piston box (40) in a sliding mode, one ends of the sealing piston box (40) are respectively embedded with an air inlet one-way valve (45) and an air outlet one-way valve (46), air inlet ends of the air inlet one-way valves (45) are connected with air inlet pipes (47), air outlet pipes (48) are connected with one ends of the air outlet pipes (48) away from the sealing piston box (40), one ends of the air outlet pipes (48) are communicated with shunt pipes (49), one sides of the shunt pipes (49) are provided with a plurality of air inlet pipe ends (50) which are connected with the first reciprocating screw rods (42) in a sliding mode, and one end of each air inlet pipe (42) is connected with one end of each reciprocating screw rod (42).

7. The circuit board testing auxiliary device according to claim 6, wherein: the first transmission piece (39) comprises a large belt wheel (51) fixedly sleeved with the third rotating shaft (34), a first transmission belt (52) is sleeved on the outer side of the large belt wheel (51), a first small belt wheel (53) is connected with the large belt wheel (51) through the transmission of the first transmission belt (52), the first small belt wheel (53) is fixedly sleeved on the outer side of a polished rod of the first reciprocating screw rod (42) at one end, and a second transmission piece (54) is connected between the dust removing mechanism (14) and the first reciprocating screw rod (42) in a transmission mode.

8. The circuit board testing auxiliary device according to claim 7, wherein: the dust removing mechanism (14) comprises a third limiting plate (55) fixed at the front side edge of the top of the equipment box (4), a fourth bearing seat (56) is symmetrically arranged at one side of the third limiting plate (55), a second reciprocating screw rod (57) is connected to the fourth bearing seat (56) in a rotating mode, a second sliding seat (58) is sleeved on the surface of the second reciprocating screw rod (57), a sliding block (59) and a fixing rod (60) are fixedly connected to the two ends of the outer side of the second sliding seat (58) through fixing blocks respectively, a limiting groove (61) is formed in the third limiting plate (55), the sliding block (59) is connected to the limiting groove (61) in a sliding mode, first linkage plates (62) are fixed to one end of the sliding block (59) through bolts, first bristles (63) are arranged on the left side and the right side of the first linkage plates (62), collecting boxes (64) are detachably mounted at the left end and the right end of the equipment box (4), a second linkage plate (65) is fixedly connected to the bottom of the fixing rod (58), and the second linkage plates (65) are close to one side of the second transmission end (54).

9. The circuit board testing auxiliary device according to claim 8, wherein: the second transmission piece (54) comprises a second small belt wheel (67) which is coaxially arranged with the first small belt wheel (53), the second small belt wheel (67) is fixedly sleeved on the outer side of a polished rod of the first reciprocating screw rod (42), a second transmission belt (68) is sleeved on the outer side of the second small belt wheel (67), a third small belt wheel (69) is connected with the large belt wheel (51) through the second transmission belt (68) in a transmission manner, and the third small belt wheel (69) is fixedly sleeved on the outer side of the polished rod of one side end part of the second reciprocating screw rod (57).

10. The circuit board testing auxiliary device according to claim 1, wherein: rectangular through grooves (70) are formed in the positions, corresponding to the limiting clamping mechanisms (10), of the test bench (1), a plurality of rubber rotating rollers (71) are uniformly distributed in the rectangular through grooves (70), the rubber rotating rollers (71) are rotatably connected with the inner walls of the two sides of the rectangular through grooves (70), a connecting plate box (72) is arranged under the rectangular through grooves (70), and a plurality of limiting rods (73) are fixed to the top of the test bench (1) and on the two sides of the groove tops of the rectangular through grooves (70).