CN214845385U - PCB (printed circuit board) test fixture - Google Patents
PCB (printed circuit board) test fixture Download PDFInfo
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- CN214845385U CN214845385U CN202120799932.2U CN202120799932U CN214845385U CN 214845385 U CN214845385 U CN 214845385U CN 202120799932 U CN202120799932 U CN 202120799932U CN 214845385 U CN214845385 U CN 214845385U
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Abstract
The utility model provides a PCB circuit board test fixture. PCB circuit board test fixture includes: the gantry and the test bench are fixedly arranged at the top of the operating platform; the air cylinder is fixedly arranged on one side of the portal frame; the connecting rod is arranged above the test board, and the top end of the connecting rod is fixedly connected with the output shaft of the air cylinder; the pressing plate is arranged below the connecting rod; the transmission screw rods are rotatably arranged on the inner walls of the two sides of the portal frame, and one ends of the transmission screw rods extend out of the portal frame; the displacement plate is installed on the transmission lead screw in a threaded mode; and the plurality of abutting rods are fixedly arranged on one side of the displacement plate close to the test board. The utility model provides a PCB circuit board test fixture has the function diversification, can carry out rapid cooling to the circuit board after the test, and can conveniently change the advantage of clamp plate.
Description
Technical Field
The utility model relates to a circuit board test technical field especially relates to a PCB circuit board test fixture.
Background
The jig is a large tool for carpenters, ironmen, pincers workers, machines, electric controls and other handicrafts and mainly serves as a tool for assisting in controlling positions or actions, the jig can be divided into a process assembly jig, a project test jig and a circuit board test jig, and in the test process of a PCB circuit board, special test jigs are often used for testing, and the application is wide.
However, the most functions of traditional circuit board test fixture are comparatively single, because the circuit board is at the test in-process, may change multiple temperature and test, even test under the environment of high temperature, and traditional test fixture does not possess certain cooling function, after the test finishes, not only need take it off with the help of pressing from both sides the instrument, still need additionally to spend the long time and carry out the cooling work, in addition, the probe that is used for the test on traditional test fixture is fixed on a clamp plate more, and the clamp plate is rather than the start-up elevating system fixed connection, when changing the probe according to the in-service use needs, still need to change whole elevating system with the clamp plate jointly, it is comparatively troublesome to change.
Therefore, it is necessary to provide a PCB testing fixture to solve the above-mentioned technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide a PCB circuit board test fixture that function is diversified, can carry out rapid cooling to the circuit board after the test, and can conveniently change the clamp plate.
In order to solve the technical problem, the utility model provides a PCB circuit board test fixture, include: the gantry and the test bench are fixedly arranged at the top of the operating platform; the air cylinder is fixedly arranged on one side of the portal frame; the connecting rod is arranged above the test board, and the top end of the connecting rod is fixedly connected with the output shaft of the air cylinder; the pressing plate is arranged below the connecting rod; the transmission screw rods are rotatably arranged on the inner walls of the two sides of the portal frame, and one ends of the transmission screw rods extend out of the portal frame; the displacement plate is installed on the transmission lead screw in a threaded mode; the plurality of abutting rods are fixedly arranged on one side, close to the test board, of the displacement board; the motor is fixedly arranged on the outer wall of one side of the portal frame; the two belt pulleys are respectively fixedly sleeved on the output shaft of the motor and the transmission lead screw; the belt is sleeved on the two belt pulleys; the transverse plate is fixedly arranged on one side of the operating platform; and the cooling mechanism is arranged on the transverse plate.
Preferably, the top of the pressure plate is fixedly connected with the bottom end of the connecting rod.
Preferably, the cooling mechanism includes coiled pipe, radiating fin, a plurality of fan and micro-water pump, the coiled pipe fixed mounting be in the bottom of diaphragm, radiating fin fixed mounting be in the bottom of coiled pipe, it is a plurality of the equal fixed mounting of fan is in the bottom of diaphragm, the fan with radiating fin looks adaptation, micro-water pump fixed mounting be in one side of operation panel, micro-water pump is located the below of diaphragm.
Preferably, a plurality of probes are fixedly mounted at the bottom of the pressure plate.
Preferably, the inner walls of the two sides of the portal frame are fixedly provided with cross rods, and the cross rods penetrate through the displacement plate and are in sliding connection with the displacement plate.
Preferably, a first connecting pipe is fixedly mounted on a water outlet of the miniature pump, the first connecting pipe is far away from one end of the miniature pump and fixedly connected with a water inlet of the coiled pipe, a second connecting pipe is fixedly mounted on a water inlet of the miniature pump, a water guide pipe is fixedly mounted on the water outlet of the coiled pipe, and the test board is close to one side of the transverse plate and fixedly mounted with an inclined sliding plate.
Preferably, the top of the pressing plate is in contact with the bottom end of the connecting rod, the bottom end of the connecting rod is provided with an insertion groove, a square block is arranged in the insertion groove, the square block is matched with the insertion groove, the bottom of the square block is fixedly connected with the pressing plate, two sides of the square block are respectively provided with a clamping groove, two side plates are arranged above the pressing plate, a pull rod is respectively and slidably mounted on the two side plates, one ends of the two pull rods, which are far away from each other, are respectively and fixedly provided with a pull ring, one ends of the two pull rods, which are close to each other, are respectively and fixedly provided with a clamping block, one sides of the two clamping blocks, which are close to each other, extend into the two clamping grooves, the clamping blocks are matched with the clamping grooves, the two clamping blocks are respectively and slidably connected with the inner walls of the two sides of the insertion groove, the two pull rods are respectively and provided with springs, one ends of the two springs, which are close to each other, are respectively and fixedly connected with the two clamping blocks, and one ends of the two springs, which are far away from each other, are fixedly connected with the two side plates respectively.
Preferably, the connecting rod is fixedly provided with two support plates, and the tops of the two side plates are respectively and fixedly connected with the two support plates.
Compared with the prior art, the utility model provides a PCB circuit board test fixture has following beneficial effect:
the utility model provides a PCB circuit board test fixture, through the drive screw and the horizontal pole that set up, can drive displacement board and the support pole horizontal migration above that to can push away the circuit board after the test to the diaphragm, immediately carry out rapid cooling work to the circuit board through cooling mechanism, so not only make the functionality of whole device promoted, and through cooling and synchronous going on of test, can also improve efficiency of software testing;
when the pressing plate and the probes on the pressing plate are replaced independently, the two pull rings are pulled in the direction away from each other, the clamping block is pulled out of the clamping groove, then the pressing plate is taken down, the square blocks on other pressing plates are inserted, then the pull rings are loosened, then the test work can be carried out, the whole replacing process is simple and fast, and people can replace the pressing plate conveniently.
Drawings
Fig. 1 is a schematic front view of a PCB circuit board testing fixture according to a first embodiment of the present invention;
FIG. 2 is an enlarged schematic view of portion A shown in FIG. 1;
FIG. 3 is a schematic diagram of a side-view connection structure of a displacement plate and a supporting rod in a first embodiment of a PCB testing fixture provided by the present invention;
fig. 4 is a schematic front view of a PCB circuit board testing fixture according to a second embodiment of the present invention;
fig. 5 is an enlarged schematic view of a portion B shown in fig. 4.
Reference numbers in the figures: 1. an operation table; 2. a gantry; 3. a test bench; 4. a cylinder; 5. a connecting rod; 6. pressing a plate; 7. a drive screw; 8. a displacement plate; 9. a support rod; 10. a motor; 11. a belt pulley; 12. a belt; 13. a transverse plate; 14. a serpentine tube; 15. a heat dissipating fin; 16. a fan; 17. a micro water pump; 18. a slot; 19. a square block; 20. a clamping groove; 21. a side plate; 22. a pull rod; 23. a bit embedding block; 24. a spring.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
First embodiment
Referring to fig. 1-3, in a first embodiment of the present invention, a PCB testing fixture includes: the device comprises an operating platform 1, a portal frame 2 and a test bench 3, wherein the portal frame 2 and the test bench 3 are fixedly arranged at the top of the operating platform 1; the air cylinder 4 is fixedly arranged on one side of the portal frame 2; the connecting rod 5 is arranged above the test bench 3, and the top end of the connecting rod 5 is fixedly connected with the output shaft of the cylinder 4; the pressing plate 6 is arranged below the connecting rod 5; the transmission screw 7 is rotatably installed on the inner walls of the two sides of the portal frame 2, one end of the transmission screw 7 extends out of the portal frame 2, and the displacement plate 8 can horizontally move through the rotation of the transmission screw 7; the displacement plate 8 is mounted on the transmission lead screw 7 in a threaded mode; the supporting rods 9 are fixedly arranged on one side, close to the test board 3, of the displacement board 8, and the supporting rods 9 can horizontally move against the circuit board; the motor 10 is fixedly arranged on the outer wall of one side of the portal frame 2; the two belt pulleys 11 are fixedly sleeved on the output shaft of the motor 10 and the transmission screw 7 respectively; the belt 12 is sleeved on the two belt pulleys 11, and the transmission screw 7 can rotate through transmission of the belt 12; the transverse plate 13 is fixedly arranged on one side of the operating platform 1; and the cooling mechanism is arranged on the transverse plate 13.
The top of the pressing plate 6 is fixedly connected with the bottom end of the connecting rod 5.
In order to carry out rapid cooling to the circuit board after the test, in this embodiment, preferentially, cooling mechanism includes coiled pipe 14, radiating fin 15, a plurality of fan 16 and miniature pump 17, coiled pipe 14 fixed mounting be in the bottom of diaphragm 13, coiled pipe 14 are used for the continuous circulation of cooling water, radiating fin 15 fixed mounting be in the bottom of coiled pipe 14, radiating fin 15 can absorb the heat on the coiled pipe 14, and is a plurality of equal fixed mounting of fan 16 is in the bottom of diaphragm 13, fan 16 with radiating fin 15 looks adaptation, the sustainable work of dispelling the heat to radiating fin 15 of fan 16, miniature pump 17 fixed mounting be in one side of operation panel 1, miniature pump 17 is located the below of diaphragm 13.
And a plurality of probes are fixedly arranged at the bottom of the pressing plate 6.
In order to provide a sliding limitation for the displacement plate 8, so that it can only move horizontally, in this embodiment, it is preferable that crossbars are fixedly installed on the inner walls of both sides of the gantry 2, and the crossbars penetrate through the displacement plate 8 and are slidably connected with the displacement plate 8.
In order to extract the cooling water smoothly to and can discharge the cooling water after the endotherm, in this embodiment, it is preferred, fixed mounting has connecting pipe one on miniature pump 17's the delivery port, the connecting pipe is kept away from miniature pump 17's one end with the water inlet fixed connection of coiled pipe 14, fixed mounting has connecting pipe two on miniature pump 17's the water inlet, fixed mounting has the aqueduct on coiled pipe 14's the delivery port, testboard 3 is close to one side fixed mounting of diaphragm 13 has oblique slide, and oblique slide can be with on the leading-in diaphragm 13 of circuit board after the test.
The utility model provides a PCB circuit board test fixture's theory of operation as follows:
in this embodiment, the free end of the second connecting pipe on the micro water pump 17 is communicated with the external cooling water tank, and the free end of the water conduit on the coiled pipe 14 is communicated with the external water collecting tank, and the transverse plate 13 in this embodiment may be made of aluminum with better heat conductivity;
when a circuit board is tested, the circuit board is placed on the test board 3, and then the output shaft of the air cylinder 4 is started to extend out, so that the pressing plate 6 and the probes on the pressing plate can be driven to descend, and then the test work is started;
after the test is finished, the output shaft of the starting cylinder 4 retracts, the pressing plate 6 and the probe are brought back to the original taste, then the motor 10 is started in the forward direction, the output shaft of the motor 10 can drive the corresponding belt pulley 11 to rotate, at the moment, the transmission lead screw 7 can rotate through the connecting action of the belt 12, further, under the sliding limit of the cross rod, the displacement plate 8 can drive the abutting rod 9 to move towards the circuit board, after the abutting rod 9 contacts the circuit board, the circuit board can be pushed, finally, under the guide of the inclined sliding plate, the circuit board slides down to the transverse plate 13, the micro water pump 17 is started immediately, cold water can be extracted, finally, the cold water enters the coiled pipe 14 to continuously circulate, at the moment, the heat on the circuit board can be conducted to the coiled pipe 14 through the aluminum transverse plate 13 and forms heat exchange with the cold water in the coiled pipe 14, then the heat on the coiled pipe 14 is absorbed again by the radiating fins 15, finally, the heat can be rapidly dissipated through continuous blowing of the fan 16, the next circuit board can be tested while the series of cooling is carried out, the cooling and the testing can be carried out synchronously, and the testing efficiency is improved.
Compared with the prior art, the utility model provides a PCB circuit board test fixture has following beneficial effect:
through the transmission lead screw 7 and the horizontal pole that set up, can drive displacement plate 8 and the pole 9 horizontal migration that supports on it to can push away the circuit board after the test to diaphragm 13 on, carry out rapid cooling work through cooling mechanism to the circuit board immediately, so not only make the functionality of whole device obtain promoting, go on in step through cooling and test moreover, can also improve efficiency of software testing.
Second embodiment:
based on the PCB circuit board test fixture provided by the first embodiment of the application, the second embodiment of the application provides another PCB circuit board test fixture. The second embodiment is merely a preferred way of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.
The second embodiment of the present invention will be further explained with reference to the drawings and the embodiments.
Referring to fig. 4-5, in a second embodiment of the PCB testing fixture of the present invention: the top of the pressing plate 6 is in contact with the bottom end of the connecting rod 5, the bottom end of the connecting rod 5 is provided with a slot 18, a square block 19 is arranged in the slot 18, the square block 19 is matched with the slot 18, the bottom of the square block 19 is fixedly connected with the pressing plate 6, the connecting rod 5 and the pressing plate 6 can form a clamping joint through the matching of the square block 19 and the slot 18, two sides of the square block 19 are respectively provided with a clamping groove 20, two side plates 21 are arranged above the pressing plate 6, pull rods 22 are respectively and slidably arranged on the two side plates 21, pull rings are respectively and fixedly arranged at the ends, far away from each other, of the two pull rods 22, clamping blocks 23 are respectively and fixedly arranged at the ends, close to each other, of the two clamping blocks 23 respectively extend into the two clamping grooves 20, and the clamping blocks 23 are matched with the clamping grooves 20, the two embedding blocks 23 are respectively in sliding connection with the inner walls of the two sides of the slot 18, the square 19 can be clamped and loosened through the matching relation between the embedding blocks 23 and the embedding grooves 20, the two pull-connection rods 22 are respectively sleeved with springs 24, one ends, close to each other, of the springs 24 are respectively fixedly connected with the two embedding blocks 23, one ends, far away from each other, of the springs 24 are respectively fixedly connected with the two side plates 21, and the springs 24 can provide resilience force for the embedding blocks 23.
In order to fix the side plates 21 reliably, in this embodiment, preferably, two support plates are fixedly mounted on the connecting rod 5, and tops of the two side plates 21 are fixedly connected with the two support plates, respectively.
When the pressing plate 6 and the probes thereon need to be replaced independently, only two pull rings need to be pulled in the direction away from each other, the two clamping blocks 23 are gradually moved out of the corresponding clamping grooves 20 under the driving of the pull-in rod 22, the square 19 loses the limitation until the clamping blocks are completely moved out, the spring 24 is in a stretching state at the moment, the pressing plate 6 is taken down, the square 19 on other pressing plates 6 is inserted, then the pull rings are loosened, the square 19 can be fixed under the action of the spring 24, and then the test work is carried out, the whole operation is simple and fast, and the pressing plate 6 can be conveniently replaced by people.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a PCB circuit board test fixture which characterized in that includes:
the gantry and the test bench are fixedly arranged at the top of the operating platform;
the air cylinder is fixedly arranged on one side of the portal frame;
the connecting rod is arranged above the test board, and the top end of the connecting rod is fixedly connected with the output shaft of the air cylinder;
the pressing plate is arranged below the connecting rod;
the transmission screw rods are rotatably arranged on the inner walls of the two sides of the portal frame, and one ends of the transmission screw rods extend out of the portal frame;
the displacement plate is installed on the transmission lead screw in a threaded mode;
the plurality of abutting rods are fixedly arranged on one side, close to the test board, of the displacement board;
the motor is fixedly arranged on the outer wall of one side of the portal frame;
the two belt pulleys are respectively fixedly sleeved on the output shaft of the motor and the transmission lead screw;
the belt is sleeved on the two belt pulleys;
the transverse plate is fixedly arranged on one side of the operating platform;
and the cooling mechanism is arranged on the transverse plate.
2. A PCB circuit board test fixture as in claim 1, wherein the top of the pressure plate is fixedly connected with the bottom end of the connecting rod.
3. The PCB circuit board testing jig of claim 1, wherein the cooling mechanism comprises a coiled pipe, a heat dissipation fin, a plurality of fans and a micro water pump, the coiled pipe is fixedly installed at the bottom of the transverse plate, the heat dissipation fin is fixedly installed at the bottom of the coiled pipe, the plurality of fans are all fixedly installed at the bottom of the transverse plate, the fans are matched with the heat dissipation fin, the micro water pump is fixedly installed at one side of the operating platform, and the micro water pump is located below the transverse plate.
4. A PCB circuit board test fixture as in claim 1, wherein a plurality of probes are fixedly mounted on the bottom of the pressure plate.
5. A PCB circuit board test fixture as in claim 1, wherein cross bars are fixedly installed on the inner walls of both sides of the portal frame, and the cross bars penetrate through the displacement plate and are connected with the displacement plate in a sliding manner.
6. The PCB circuit board testing jig of claim 3, wherein a first connecting pipe is fixedly installed on a water outlet of the micro water pump, one end of the first connecting pipe, which is far away from the micro water pump, is fixedly connected with a water inlet of the coiled pipe, a second connecting pipe is fixedly installed on a water inlet of the micro water pump, a water guide pipe is fixedly installed on a water outlet of the coiled pipe, and an inclined sliding plate is fixedly installed on one side, which is close to the transverse plate, of the testing table.
7. The PCB circuit board testing jig of claim 1, wherein the top of the pressing plate contacts with the bottom of the connecting rod, the bottom of the connecting rod is provided with a slot, a square block is arranged in the slot, the square block is matched with the slot, the bottom of the square block is fixedly connected with the pressing plate, both sides of the square block are provided with clamping grooves, two side plates are arranged above the pressing plate, a pull rod is slidably arranged on each of the two side plates, a pull ring is fixedly arranged at the end, far away from each other, of each of the two pull rods, a clamping block is fixedly arranged at the end, close to each other, of each of the two pull rods, one side, close to each other, of each of the two clamping blocks extends into each of the two clamping grooves, the clamping blocks are matched with the clamping grooves, and the two clamping blocks are slidably connected with the inner walls of both sides of the slot, two all the cover is equipped with the spring on the extension rod, two the one end that the spring is close to each other respectively with two clamping block fixed connection, two the one end that the spring kept away from each other respectively with two curb plate fixed connection.
8. A PCB circuit board test fixture as in claim 7, wherein two support plates are fixedly mounted on the connecting rod, and the tops of the two side plates are respectively and fixedly connected with the two support plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120799932.2U CN214845385U (en) | 2021-04-19 | 2021-04-19 | PCB (printed circuit board) test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120799932.2U CN214845385U (en) | 2021-04-19 | 2021-04-19 | PCB (printed circuit board) test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214845385U true CN214845385U (en) | 2021-11-23 |
Family
ID=78764879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120799932.2U Active CN214845385U (en) | 2021-04-19 | 2021-04-19 | PCB (printed circuit board) test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214845385U (en) |
-
2021
- 2021-04-19 CN CN202120799932.2U patent/CN214845385U/en active Active
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