CN219777858U - Circuit board testing device - Google Patents
Circuit board testing device Download PDFInfo
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- CN219777858U CN219777858U CN202320945121.8U CN202320945121U CN219777858U CN 219777858 U CN219777858 U CN 219777858U CN 202320945121 U CN202320945121 U CN 202320945121U CN 219777858 U CN219777858 U CN 219777858U
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- circuit board
- pressing plate
- cam
- supporting
- testing
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- 238000012360 testing method Methods 0.000 title claims abstract description 63
- 238000003825 pressing Methods 0.000 claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 239000000523 sample Substances 0.000 claims abstract description 19
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 230000000007 visual effect Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- Tests Of Electronic Circuits (AREA)
Abstract
The utility model discloses a circuit board testing device, which relates to the technical field of circuit board detection and comprises a workbench and supporting frames arranged on two sides of the workbench, wherein the supporting frames are arranged on two sides of the upper surface of the workbench, a connecting plate is arranged in the middle of the supporting frames, a testing mechanism is arranged on the connecting plate, and a supporting mechanism is arranged below the testing mechanism; the testing mechanism comprises a pressing plate which is arranged below the connecting plate and can reciprocate in the direction of the connecting plate and vertically move, a plurality of testing probes are arranged on the pressing plate, a moving rod is arranged on the upper surface of the pressing plate, a cam is driven to rotate when the handle is rotated, the surface of the cam is contacted with the moving rod to push the moving rod to move downwards, so that the testing probes on the pressing plate are contacted with the circuit board, the highest point of the cam is contacted with the moving rod, and therefore the tension spring can drive the pressing plate to rebound when the pressing plate is not moved in place, and the contact between the testing probes and the circuit board is ensured when the circuit board is tested.
Description
Technical Field
The utility model relates to the technical field of circuit board detection, in particular to a circuit board testing device.
Background
The PCB board, called a printed circuit board, is an important electronic component, is a support for electronic components, and is a carrier for electrical interconnection of the electronic components. It is called a "printed" circuit board because it is made using electronic printing.
After the circuit board is produced, various electrical tests are required to be carried out so as to ensure that the circuit board can work normally. When the circuit board is tested, the contacts of various test circuits are connected with the corresponding contacts on the circuit board by means of manpower, and then the power is applied to judge whether the circuit board is good or bad.
The existing circuit board is still partly tested manually, quality detection by naked eyes of people cannot meet the requirement of mass production, the requirement of quick detection cannot be met, meanwhile, the detection quality of the circuit board cannot be guaranteed, and the problem that defective products cannot be detected frequently occurs.
In view of the above problems, the present utility model provides a circuit board testing device.
Disclosure of Invention
The utility model aims to provide a circuit board testing device, when a handle is rotated, a cam is driven to rotate, the surface of the cam is contacted with a moving rod to push the moving rod to move downwards, so that a testing probe on a pressing plate is contacted with a circuit board, the cam can be kept fixed when the highest point of the cam is contacted with the moving rod, and therefore, when the pressing plate is not moved in place, a tension spring drives the pressing plate to rebound, the position of the testing probe is ensured to be contacted with the circuit board during testing of the circuit board, and the problem in the background art is solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the circuit board testing device comprises a workbench and supporting frames arranged on two sides of the workbench, wherein the supporting frames are arranged on two sides of the upper surface of the workbench, a connecting plate is arranged in the middle of the supporting frames, a testing mechanism is arranged on the connecting plate, and a supporting mechanism is arranged below the testing mechanism;
the testing mechanism comprises a pressing plate which is arranged below the connecting plate and can reciprocate in the direction of the connecting plate to be vertically moved, a plurality of testing probes are arranged on the pressing plate, a moving rod is arranged on the upper surface of the pressing plate, the top of the moving rod passes through a through hole formed in the pressing plate and is slidably connected with a cam, and the cam can rotate to drive the moving rod to reciprocate in the through hole along the axis of the through hole.
Further, the testing mechanism further comprises a tension spring fixedly connected to the upper surface of the pressing plate and the lower surface of the connecting plate, and the tension spring is sleeved on the outer peripheral surface of the moving rod.
Further, the testing mechanism further comprises mounting blocks fixedly connected to two ends of the inner side walls of the supporting frames on two sides, a guide rod is mounted between the lower surface of each mounting block and the upper surface of the workbench, a plurality of guide holes which are uniformly distributed at equal intervals are formed in the pressing plate, and the guide holes are in sliding connection with the guide rods.
Further, supporting seats are fixed at two ends of the upper surface of the connecting plate, a fixed shaft is fixedly installed between the supporting seats, the outer peripheral surface of the fixed shaft is rotationally connected with a through hole formed in the cam through a bearing, and a handle is fixed on the outer peripheral surface of the cam.
Further, supporting mechanism includes supporting component and warning subassembly, and supporting component sets up the mounting panel below the clamp plate, has seted up a plurality of equidistance equipartitions's through-hole on the mounting panel, is equipped with the dead lever in the through-hole, and the installation at the workstation upper surface of dead lever equidistance equipartition, and the screw thread is seted up at the dead lever top and is fixed through the bolt, and the dead lever outer peripheral face cover is equipped with the spring.
Further, the warning component comprises a travel switch arranged on the upper surface of the workbench, a trigger end of the travel switch is used for contacting the lower surface of the mounting plate, an audible and visual alarm is arranged on the outer side wall of the supporting plate on one side of the workbench, and the input end of the audible and visual alarm is electrically connected with the output end of the travel switch.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the circuit board testing device provided by the utility model, the cam is driven to rotate when the handle is rotated, the surface of the cam is contacted with the moving rod to push the moving rod to move downwards so that the testing probe on the pressing plate is contacted with the circuit board, and the cam can be kept fixed when the highest point of the cam is contacted with the moving rod, so that the tension spring drives the pressing plate to rebound when the pressing plate is not moved in place, and the position of the testing probe is ensured to be contacted with the circuit board during testing of the circuit board.
2. According to the circuit board testing device provided by the utility model, the spring arranged below the mounting plate is contracted to drive the mounting plate to move, and when the welding spot is abnormal or the circuit board type number is wrong, the test probe drives the mounting plate to move downwards to trigger the travel switch, and the audible and visual alarm gives out an alarm to prevent further errors caused by staff.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of a travel bar of the present utility model;
FIG. 3 is a schematic view of a fixing rod according to the present utility model;
fig. 4 is a schematic cross-sectional view of a cam structure of the present utility model.
In the figure: 1. a work table; 2. a support frame; 3. a connecting plate; 4. a handle; 5. a cam; 6. a fixed shaft; 7. a support base; 8. a moving rod; 9. a tension spring; 10. a pressing plate; 11. a test probe; 12. a mounting block; 13. a guide rod; 14. a mounting plate; 15. a fixed rod; 16. a bolt; 17. a spring; 18. a travel switch; 19. an audible and visual alarm.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In order to solve the technical problem of circuit board testing, as shown in fig. 1-4, the following preferred technical scheme is provided:
the circuit board testing device comprises a workbench 1 and supporting frames 2 arranged on two sides of the workbench 1, wherein the supporting frames 2 are arranged on two sides of the upper surface of the workbench 1, a connecting plate 3 is arranged in the middle of the supporting frames 2, a testing mechanism is arranged on the connecting plate 3, and a supporting mechanism is arranged below the testing mechanism;
the testing mechanism comprises a pressing plate 10 which is arranged below the connecting plate 3 and can reciprocate in the direction of the connecting plate 3 and vertically moves, a plurality of testing probes 11 are arranged on the pressing plate 10, a moving rod 8 is arranged on the upper surface of the pressing plate 10, the top of the moving rod 8 passes through a through hole formed in the pressing plate 10 and is slidably connected with a cam 5, and the cam 5 can rotate to drive the moving rod 8 to reciprocate in the through hole along the axis of the through hole. The circuit board to be tested is arranged in a groove formed in the mounting plate 14, the handle 4 is rotated, the handle 4 rotates to drive the cam 5 to rotate along the fixed shaft 6 as a circle center, the protruding part of the cam 5 gradually rotates and contacts with the upper surface of the movable rod 8, the cam 5 drives the movable rod 8 to move towards the pressing plate 10 along the axis of the cam 5, the length of the tension spring 9 is stretched, the pressing plate 10 moves downwards to drive the test probe 11 to contact with the circuit board on the mounting plate 14 for testing, at the moment, the highest point of the cam 5 contacts with the upper surface of the connecting plate 3, the test probe 11 drives the mounting plate 14 to move downwards along the axis of the fixed rod 15 and compress the length of the spring 17, after the testing is finished, the handle 4 is rotated again, the highest point of the cam 5 slides to one side, and the cam 5 is driven by the tension spring 9 to rotate rapidly to drive the pressing plate 10 to return to the original position.
The testing mechanism further comprises a tension spring 9 fixedly connected to the upper surface of the pressing plate 10 and the lower surface of the connecting plate 3, and the tension spring 9 is sleeved on the outer peripheral surface of the moving rod 8. The cam 5 drives the moving rod 8 to move along the axis of the cam 5 towards the pressing plate 10, the length of the tension spring 9 is stretched, and when the cam 5 returns to the original position, the tension spring 9 can drive the cam 5 to rotate rapidly.
The testing mechanism further comprises mounting blocks 12 fixedly connected to two ends of the inner side walls of the two side supporting frames 2, guide rods 13 are mounted between the lower surfaces of the mounting blocks 12 and the upper surface of the workbench 1, and a plurality of guide holes which are uniformly distributed at equal intervals are formed in the pressing plate 10 and are in sliding connection with the guide rods 13. The platen 10 moves along the axis of the guide bar 13 when moving downward, and the movement of the platen 10 is guided by the guide bar 13.
The two ends of the upper surface of the connecting plate 3 are fixed with supporting seats 7, a fixed shaft 6 is fixedly arranged between the supporting seats 7, the outer circumferential surface of the fixed shaft 6 is rotationally connected with a through hole formed in the cam 5 through a bearing, and a handle 4 is fixed on the outer circumferential surface of the cam 5. The cam 5 can rotate by taking the fixed shaft 6 as the circle center, and when the cam rotates, the upper bulge of the cam 5 gradually contacts with the moving rod 8 to drive the moving rod 8 to move downwards.
The supporting mechanism comprises a supporting component and a warning component, wherein the supporting component is arranged on a mounting plate 14 below the pressing plate 10, a plurality of through holes which are uniformly distributed at equal intervals are formed in the mounting plate 14, fixing rods 15 are arranged in the through holes, the fixing rods 15 are uniformly distributed at equal intervals and are arranged on the upper surface of the workbench 1, the tops of the fixing rods 15 are provided with threads and are fixed through bolts 16, and springs 17 are sleeved on the outer peripheral surfaces of the fixing rods 15. The pressing plate 10 moves downwards to drive the test probe 11 to be in contact with the circuit board and the mounting plate 14, the mounting plate 14 moves downwards to enable the contact between the circuit board and the test probe 11 to be more compact through the rebound of the spring 17, and the trip switch 18 is triggered to alarm through the audible and visual alarm 19 when the thickness, the welding spots and the test points caused by the fact that the type of the circuit board are not problematic are caused by the fact that the downward movement distance of the mounting plate 14 is too large.
The warning subassembly includes the travel switch 18 of installing at workstation 1 upper surface, and the trigger end of travel switch 18 is used for mounting panel 14 lower surface contact, and audible-visual annunciator 19 is installed to workstation 1 one side backup pad lateral wall, audible-visual annunciator 19 input electric connection at travel switch 18 output. The spring 17 arranged below the mounting plate 14 is contracted to drive the mounting plate 14 to move, and when the welding spot is abnormal or the circuit board type number is wrong, the test probe 11 drives the mounting plate 14 to move downwards to trigger the travel switch 18, and the audible and visual alarm 19 gives an alarm.
To sum up: the circuit board to be tested is arranged in a groove formed in the mounting plate 14, the handle 4 is rotated, the handle 4 rotates to drive the cam 5 to rotate along the fixed shaft 6 as a circle center, the protruding part of the cam 5 gradually rotates and contacts with the upper surface of the movable rod 8, the cam 5 drives the movable rod 8 to move towards the pressing plate 10 along the axis of the cam 5, the length of the tension spring 9 is stretched, the pressing plate 10 moves downwards to drive the test probe 11 to contact with the circuit board on the mounting plate 14 for testing, at the moment, the highest point of the cam 5 contacts with the upper surface of the connecting plate 3, the test probe 11 drives the mounting plate 14 to move downwards along the axis of the fixed rod 15 and compress the length of the spring 17, after the testing is finished, the handle 4 is rotated again, the highest point of the cam 5 slides to one side, and the cam 5 is driven by the tension spring 9 to rotate rapidly to drive the pressing plate 10 to return to the original position.
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 utility model 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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a circuit board testing arrangement, includes support frame (2) of workstation (1) and workstation (1) both sides installation, its characterized in that: the two sides of the upper surface of the workbench (1) are provided with supporting frames (2), a connecting plate (3) is arranged in the middle of each supporting frame (2), a testing mechanism is arranged on each connecting plate (3), and a supporting mechanism is arranged below each testing mechanism;
the testing mechanism comprises a pressing plate (10) which is arranged below the connecting plate (3) and can reciprocate in the direction of the connecting plate (3) and vertically moves, a plurality of testing probes (11) are arranged on the pressing plate (10), a moving rod (8) is arranged on the upper surface of the pressing plate (10), the top of the moving rod (8) penetrates through a through hole formed in the pressing plate (10) to be slidably connected with a cam (5), and the cam (5) can rotationally drive the moving rod (8) to reciprocate in the through hole along the axis of the through hole.
2. The circuit board testing device of claim 1, wherein: the testing mechanism further comprises a tension spring (9) fixedly connected to the upper surface of the pressing plate (10) and the lower surface of the connecting plate (3), and the tension spring (9) is sleeved on the outer peripheral surface of the moving rod (8).
3. The circuit board testing device of claim 1, wherein: the testing mechanism further comprises mounting blocks (12) fixedly connected to two ends of the inner side walls of the supporting frames (2) on two sides, guide rods (13) are mounted between the lower surfaces of the mounting blocks (12) and the upper surface of the workbench (1), a plurality of guide holes which are uniformly distributed at equal intervals are formed in the pressing plate (10), and the guide holes are in sliding connection with the guide rods (13).
4. The circuit board testing device of claim 1, wherein: the two ends of the upper surface of the connecting plate (3) are fixedly provided with supporting seats (7), a fixed shaft (6) is fixedly arranged between the supporting seats (7), the outer circumferential surface of the fixed shaft (6) is rotatably connected with a through hole formed in the cam (5) through a bearing, and a handle (4) is fixedly arranged on the outer circumferential surface of the cam (5).
5. The circuit board testing device of claim 1, wherein: the supporting mechanism comprises a supporting component and a warning component, the supporting component is arranged on a mounting plate (14) below the pressing plate (10), a plurality of through holes are formed in the mounting plate (14) and uniformly distributed at equal intervals, fixing rods (15) are arranged in the through holes, the fixing rods (15) are uniformly distributed on the upper surface of the workbench (1) at equal intervals, threads are formed in the tops of the fixing rods (15) and are fixed through bolts (16), and springs (17) are sleeved on the outer peripheral surfaces of the fixing rods (15).
6. The circuit board testing device of claim 5, wherein: the warning assembly comprises a travel switch (18) arranged on the upper surface of the workbench (1), the trigger end of the travel switch (18) is used for contacting the lower surface of the mounting plate (14), an audible and visual alarm (19) is arranged on the outer side wall of the supporting plate on one side of the workbench (1), and the input end of the audible and visual alarm (19) is electrically connected with the output end of the travel switch (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320945121.8U CN219777858U (en) | 2023-04-24 | 2023-04-24 | Circuit board testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320945121.8U CN219777858U (en) | 2023-04-24 | 2023-04-24 | Circuit board testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219777858U true CN219777858U (en) | 2023-09-29 |
Family
ID=88106737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320945121.8U Active CN219777858U (en) | 2023-04-24 | 2023-04-24 | Circuit board testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219777858U (en) |
-
2023
- 2023-04-24 CN CN202320945121.8U patent/CN219777858U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |