CN114942192B - Automatic detection device for PCB pressure test - Google Patents

Automatic detection device for PCB pressure test Download PDF

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Publication number
CN114942192B
CN114942192B CN202210603072.XA CN202210603072A CN114942192B CN 114942192 B CN114942192 B CN 114942192B CN 202210603072 A CN202210603072 A CN 202210603072A CN 114942192 B CN114942192 B CN 114942192B
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CN
China
Prior art keywords
circuit board
supporting plate
plate
support
pipe
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Application number
CN202210603072.XA
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Chinese (zh)
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CN114942192A (en
Inventor
李亚军
侯胜杰
林昇弘
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Fuhua Technology Shenzhen Co ltd
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Fuhua Technology Shenzhen Co ltd
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Priority to CN202210603072.XA priority Critical patent/CN114942192B/en
Publication of CN114942192A publication Critical patent/CN114942192A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/10Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
    • G01N3/12Pressure testing
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/20Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014Type of force applied
    • G01N2203/0016Tensile or compressive
    • G01N2203/0019Compressive
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014Type of force applied
    • G01N2203/0023Bending
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003Generation of the force
    • G01N2203/0042Pneumatic or hydraulic means
    • G01N2203/0048Hydraulic means

Abstract

The invention discloses an automatic detection device for pressure test of a PCB (printed Circuit Board), which comprises two upright plates which are symmetrically arranged, wherein support plates are rotatably arranged on the inner sides of the upright plates, circuit boards are arranged at the tops of the two support plates, and a compression bar is arranged at the top of the circuit boards; a transmission assembly is arranged between the two support plates, and when the circuit board is pressed by the pressure rod to bend downwards, the support plates are driven to rotate downwards, and meanwhile, the circuit board and the transmission assembly synchronously move at the top of the support plates; when the circuit board is bent, two ends of the circuit board can slide at the top of the supporting plate, scratches are formed on the surface of the circuit board, the transmission assembly is arranged between the two supporting plates, the transmission assembly can be driven to move at the top of the supporting plate when the circuit board is bent downwards, the circuit board and the transmission assembly are relatively static due to the action of friction force, contact and friction between the circuit board and the supporting plate are avoided, and protection of the circuit board is facilitated.

Description

Automatic detection device for PCB pressure test
Technical Field
The invention relates to the technical field of circuit board testing, in particular to an automatic detection device for PCB pressure testing.
Background
The circuit board, also called a printed circuit board, is one of important parts in the electronic industry, is a support body of electronic components, is a carrier for electrically connecting the electronic components, can replace complex wiring, realizes electrical connection among elements in a circuit, simplifies assembly and welding work of electronic products, reduces wiring workload in a traditional mode, and greatly lightens labor intensity of workers; in addition, the whole volume is reduced, the product cost is reduced, the quality and the reliability of the electronic equipment are improved, the printed circuit board is widely applied to the production and the manufacture of electronic products at present, and the circuit board is required to be tested after the manufacture is finished in order to ensure the yield of the circuit board, such as pressure test, anti-falling test, temperature resistance test and the like.
Chinese patent No. CN114034578A discloses a special circuit board bending resistance tester, and relates to the field of circuit board testing. The bending resistance testing machine for the special circuit board comprises a supporting table and an upper frame, wherein the lower end of the upper frame is fixedly connected with the upper surface of the supporting table, a material table is arranged between the upper frame and the supporting table, the right side surface of the material table is fixedly connected with a blanking box, the bottom surface of the material table is fixedly connected with four supporting telescopic rods, and the lower end of the supporting telescopic rods is fixedly connected with the upper surface of the supporting table. This special circuit board bending resistance testing machine through setting up clamp plate, cavity, compression spring and hang plate, if the circuit board does not take place the rupture, because the shape of clamp plate is the U-shaped, can stabilize upwards hold up the circuit board that does not break, if when the clamp plate pushes down and makes the circuit board break, the support column can not carry out stable support to the circuit board, and the circuit board drops the brace table, will satisfy the condition and separate with the circuit board that does not satisfy the condition.
The equipment extrudes the circuit board through the U-shaped pressing plate, so that the pressure test is performed on the circuit board, the bottom surface of the circuit board can be contacted with the side edge of the pressing plate and extruded in the process of extruding the circuit board to bend the circuit board, the bottom of the circuit board is rubbed, and the circuit board can be scratched when severe, so that the circuit board is not protected.
Therefore, it is necessary to provide an automatic detection device for PCB pressure test to solve the above technical problems.
Disclosure of Invention
The invention aims to provide an automatic detection device for pressure test of a PCB (printed Circuit Board) so as to solve the problems that the existing equipment provided in the background technology extrudes a circuit board through a U-shaped pressing plate, so that the pressure test is carried out on the circuit board, the bottom surface of the circuit board is contacted with the side edge of the pressing plate and extruded in the process of extruding the circuit board to bend the circuit board, the bottom of the circuit board is rubbed, and the circuit board is scratched when the circuit board is seriously scratched, so that the protection of the circuit board is not facilitated.
Based on the thought, the invention provides the following technical scheme: the device comprises two upright plates which are symmetrically arranged, wherein the inner sides of the upright plates are rotatably provided with supporting plates, circuit boards are placed at the tops of the two supporting plates, and compression bars are arranged at the tops of the circuit boards;
a transmission assembly is arranged between the two supporting plates, and when the circuit board is pressed by the pressure rod to bend downwards, the supporting plates are driven to rotate downwards, and meanwhile, the circuit board and the transmission assembly synchronously move at the top of the supporting plates.
As a further scheme of the invention: the support assembly comprises a first support rod and a second support rod, wherein the second support rod is of a cylindrical structure with an inner cavity, the first support rod is in sliding connection with the second support rod through the cavity, a third spring is arranged in the cavity on the second support rod, the bottom end of the first support rod is hinged to the vertical plate, and the top end of the second support rod is hinged to the top of the support plate.
As a further scheme of the invention: the transmission assembly comprises a connecting belt and a slag storage belt, the connecting belt is arranged on the supporting plate, one end of the connecting belt is fixedly connected to the bottom of the supporting plate, the other end of the connecting belt is a free end, the free end extends towards one side, far away from the vertical plate, of the supporting plate and is arranged at the top of the supporting plate, the free end of the connecting belt passes through the supporting plate downwards after passing through one end, fixed with the supporting plate, of the connecting belt, and extends to the bottom of the supporting plate, and the slag storage belt is fixedly connected between the two connecting belts.
As a further scheme of the invention: the top of riser is provided with sealed storehouse, the inside sliding connection in sealed storehouse has the clamp plate, the inside space that is located the clamp plate top in sealed storehouse sets up to sealed cavity.
As a further scheme of the invention: the utility model discloses a sealing device for the elevator, including the backup pad, the backup pad is provided with the logical groove that link up, logical groove is arranged along the length direction of backup pad, the one side that the connecting band top is close to the riser is provided with the sucking disc, the bottom of sucking disc is connected with the connecting pipe, the connecting pipe passes connecting band and backup pad top and extends to the logical inslot portion in the backup pad, the backup pad is inside to be provided with horizontal pipe, the one end that the sucking disc was kept away from to the connecting pipe is linked together with horizontal pipe, be provided with the honeycomb duct between horizontal pipe and the sealed storehouse, the one end of honeycomb duct extends to the backup pad inside and is linked together with horizontal pipe, the other end of honeycomb duct passes sealed storehouse and is linked together with sealed cavity.
As a further scheme of the invention: a traction rope is arranged between the pressing plate and the supporting plate, one end of the traction rope is arranged at the bottom of the pressing plate and is fixed with the pressing plate, and the other end of the traction rope penetrates out of the sealing bin and is fixed with the top surface of the supporting plate.
As a further scheme of the invention: the inside fixedly connected with support of backup pad, the support is located the bottom of backup pad, the inboard of backup pad is provided with spacing axle, the connecting band extends to the free end of backup pad bottom and walks around from the outside of spacing axle, the top fixedly connected with slide bar of support, the slide bar sets up in the both ends of spacing axle, the slide bar runs through spacing axle and with spacing axle sliding connection, the outside cover of slide bar is equipped with first spring, first spring sets up between support and spacing axle, and a plurality of round holes have evenly been seted up at the top of storing up the sediment area.
As a further scheme of the invention: the pressure sensor is installed to one side of backup pad far away from the riser, pressure sensor's link electric connection has the controller, controller and external display electric connection.
As a further scheme of the invention: the top of riser is provided with the crossbeam, the top fixedly connected with hydraulic stem of crossbeam, the flexible end of hydraulic stem passes the crossbeam and extends to the bottom of crossbeam, the depression bar is connected with the flexible end of hydraulic stem.
As a further scheme of the invention: the outside of clamp plate is provided with the sealing strip, the sealing strip is made by rubber material.
Compared with the prior art, the invention has the beneficial effects that:
1. when the compression bar extrudes the circuit board to bend, the both ends of circuit board can slide at the top of backup pad to cause the mar to the surface of circuit board, through being provided with drive assembly between two backup pads, can drive assembly when the circuit board is downwarping and remove at the backup pad top, and circuit board and drive assembly are static relatively because of the effect of frictional force, and then avoided the contact and the friction of circuit board and backup pad, be favorable to protecting the circuit board.
2. When the circuit board is placed on the supporting plate, the circuit board is placed on the top of the connecting band, so when the pressing rod downwards presses the circuit board to enable the circuit board to bend, two ends of the circuit board are pressed on the connecting band, and when the pressing plate continues downwards pressing the circuit board, the connecting band can be driven to move on the supporting plate through friction force between the circuit board and the connecting band, and therefore the circuit board is prevented from directly moving on the supporting plate, and the circuit board can be protected.
3. The air in the transverse tube is extracted through the guide tube, and the air in the sucker is extracted through the connecting tube, so that the inside of the sucker tends to be in a vacuum state, the bottom surface of the circuit board is favorably sucked through the sucker, and the circuit board is stably connected with the connecting belt through the sucker, when the pressure bar continuously presses the circuit board downwards to bend the circuit board, the circuit board can stably drive the connecting belt to move on the supporting plate through the sucker, so that the circuit board is prevented from being separated from the connecting belt, and therefore, the circuit board and the connecting belt can be prevented from moving relatively through the structure, and the circuit board can be further protected.
4. Through being provided with the sediment area of storing up in backup pad bottom, when the depression bar pushed down the circuit board and make its crooked at the in-process of pressure test, the sediment area of storing up is close to the circuit board gradually, and when the circuit board rupture, the piece can splash to storing up the inside of round hole on the sediment area to collect the piece, avoid its accidental injury staff.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic view of the structure of the support plate and the chute at the top thereof of the present invention;
FIG. 4 is a schematic view of the connection structure of the horizontal pipe and the flow guiding pipe of the present invention;
FIG. 5 is a schematic view of the structure of the connecting belt and the slag storage belt of the present invention;
FIG. 6 is an enlarged schematic view of the structure of FIG. 1A according to the present invention;
FIG. 7 is an enlarged schematic view of the structure of FIG. 3B according to the present invention;
FIG. 8 is an enlarged schematic view of the structure of FIG. 3 at C in accordance with the present invention;
FIG. 9 is a schematic view of a circuit board of the present invention placed on top of a support plate;
fig. 10 is a schematic view of the structure of the circuit board of the present invention when it is bent.
In the figure: 1. a hydraulic rod; 2. a compression bar; 3. sealing the bin; 4. a vertical plate; 5. a connecting belt; 6. a slag storage belt; 7. a round hole; 8. a flow guiding pipe; 9. a support plate; 10. a suction cup; 11. a bracket; 12. a traction rope; 13. a first strut; 14. a slide bar; 15. a first spring; 16. a transmission assembly; 17. a limiting shaft; 18. a chute; 19. a pressure sensor; 20. a second strut; 21. a connecting pipe; 22. a transverse tube; 23. a second spring; 24. sealing the chamber; 25. a pressing plate; 26. a circuit board.
Detailed Description
As shown in fig. 1-3, an automatic detection device for PCB board pressure test comprises two vertical plates 4 symmetrically arranged, a supporting plate 9 is rotatably arranged on the inner side of each vertical plate 4, a supporting component is arranged between the bottom of each supporting plate 9 and the inner side of each vertical plate 4, each supporting component comprises a first supporting rod 13 and a second supporting rod 20, each second supporting rod 20 is of a cylindrical structure with an inner cavity, the first supporting rod 13 is slidably connected with the second supporting rod 20 through the corresponding cavity, a third spring is arranged in the cavity on the second supporting rod 20 and is arranged between the first supporting rod 13 and the second supporting rod 20, the bottom end of each first supporting rod 13 is hinged with each vertical plate 4, and the top end of each second supporting rod 20 is hinged with the top of each supporting plate 9.
Further, be provided with the crossbeam at the top of two risers 4, the top fixedly connected with hydraulic stem 1 of crossbeam, the flexible end of hydraulic stem 1 passes the crossbeam and extends to the bottom of crossbeam, and the flexible end and the crossbeam sliding connection of hydraulic stem 1, the flexible end fixedly connected with depression bar 2 of hydraulic stem 1.
The pressure sensor 19 is installed to one side that riser 4 was kept away from to backup pad 9, during the in-service use, place the PCB circuit board 26 that will test at the top of two backup pads 9, drive depression bar 2 through the flexible end of hydraulic stem 1 and remove downwards, thereby extrude circuit board 26, promote circuit board 26 crooked, circuit board 26 can drive backup pad 9 synchronous rotation at crooked in-process, thereby protect circuit board 26, in traditional testing arrangement, the part that supports circuit board 26 is mostly fixed setting, make circuit board 26 can produce extrusion or friction with relevant supporting part curb plate in the crooked in-process, thereby scrape the surface of circuit board 26, and in this structure, backup pad 9 can rotate along with circuit board 26 in step, thereby avoided the friction between the side of backup pad 9 and the circuit board 26, be favorable to protecting circuit board 26.
As shown in fig. 2 and 5, in the actual use process, although the support plate 9 can rotate synchronously with the circuit board 26, when the circuit board 26 is bent, the two ends of the support plate 9 are still contacted with the top of the support plate 9, so that when the press rod 2 presses the circuit board 26 to bend, the two ends of the circuit board 26 slide on the top of the support plate 9, thereby causing scratches on the surface of the circuit board 26, therefore, the transmission assembly 16 is arranged between the two support plates 9, when the circuit board 26 bends downwards, the transmission assembly 16 can be driven to move on the top of the support plate 9, and the circuit board 26 and the transmission assembly 16 are relatively static due to the action of friction force, thereby avoiding the contact and friction between the circuit board 26 and the support plate 9 and being beneficial to protecting the circuit board 26.
Specifically, the transmission assembly 16 includes the connecting belt 5 and the slag storage belt 6, the connecting belt 5 is disposed on the supporting plate 9, one end of the connecting belt 5 is fixedly connected to the bottom of the supporting plate 9, the other end is a free end, the free end extends toward one side of the supporting plate 9 away from the vertical plate 4 and is disposed at the top of the supporting plate 9, then extends toward the direction close to the vertical plate 4 at the top of the supporting plate 9 and passes over the end fixed to the supporting plate 9 on the connecting belt 5, when the free end of the connecting belt 5 passes over the end fixed to the supporting plate 9, the free end passes through the supporting plate 9 and extends to the bottom of the supporting plate 9, and the slag storage belt 6 is fixedly connected between the two connecting belts 5.
In actual use, when the circuit board 26 is placed on the supporting plate 9, it is placed on the top of the connecting band 5, so when the pressing rod 2 presses the circuit board 26 downwards to cause the circuit board 26 to bend, two ends of the circuit board 26 are pressed on the connecting band 5, and when the pressing plate 25 continues to press the circuit board 26 downwards, the friction between the circuit board 26 and the connecting band 5 can drive the connecting band 5 to move on the supporting plate 9, thereby avoiding the circuit board 26 from directly moving on the supporting plate 9 and protecting the circuit board 26.
As shown in fig. 2-5 and 7-10, in order to further improve the stability of connection between the connecting belt 5 and the circuit board 26, the top of the vertical plate 4 is provided with a sealing chamber 3, the cross beam is fixedly connected to the top of the sealing chamber 3, the inside of the sealing chamber 3 is slidably connected with a pressing plate 25, in actual use, a sealing strip may be provided on the outer side of the pressing plate 25, so as to increase the tightness between the pressing plate 25 and the inner wall of the sealing chamber 3, so that the pressing plate 25 is in sealing connection with the sealing chamber 3, the space inside the sealing chamber 3 at the top of the pressing plate 25 is provided with a sealing chamber 24, and a second spring 23 is provided between the bottom inside the sealing chamber 24 and the pressing plate 25.
The supporting plate 9 is provided with a through groove, the through groove is arranged along the length direction of the supporting plate 9, a sucker 10 is arranged on one side, close to the vertical plate 4, of the top of the connecting belt 5, the bottom end of the sucker 10 is connected with a connecting pipe 21, and the connecting pipe 21 penetrates through the top of the connecting belt 5 and the supporting plate 9 and extends to the inside of the through groove in the supporting plate 9.
Further, a chute 18 matched with the connecting pipe 21 is arranged on the supporting plate 9, the connecting pipe 21 enters the supporting plate 9 through the chute 18, a transverse pipe 22 is arranged in the through groove of the supporting plate 9, one end of the connecting pipe 21 far away from the suction disc 10 is communicated with the transverse pipe 22, a flow guide pipe 8 is arranged between the transverse pipe 22 and the sealing bin 3, specifically, one end of the flow guide pipe 8 extends into the supporting plate 9 and is communicated with the transverse pipe 22, the other end of the flow guide pipe 8 passes through the sealing bin 3 and is communicated with the sealing chamber 24, and air flow in the sealing chamber 24 can flow into the transverse pipe 22 through the flow guide pipe 8.
In order to drive the pressing plate 25 to move up and down in the sealed cabin 3, a traction rope 12 is arranged between the pressing plate 25 and the supporting plate 9, specifically, one end of the traction rope 12 is arranged at the bottom of the pressing plate 25 and fixed with the pressing plate 25, the other end of the traction rope 12 penetrates out of the sealed cabin 3 and fixed with the top surface of the supporting plate 9, and the traction rope 12 is in sliding connection with the sealed cabin 3.
When the pressure lever 2 is used for extruding the circuit board 26 to bend, the pressure lever 2 can synchronously drive the support plate 9 to rotate, so that the support plate 9 pulls the traction rope 12, at the moment, the pressure plate 25 can be driven to move downwards through the traction rope 12, so that the sealing cavity 24 forms negative pressure, the air in the transverse tube 22 can be extracted through the guide tube 8, the air in the suction cup 10 can be extracted through the connecting tube 21, the state of tending to vacuum between the inner parts of the suction cups 10 is facilitated, the bottom surface of the circuit board 26 is sucked through the suction cup 10, and the circuit board 26 is stably connected with the connecting belt 5 through the suction cup 10, therefore, when the pressure lever 2 continuously downwards presses the circuit board 26 to bend, the circuit board 26 can stably drive the connecting belt 5 to move on the support plate 9 through the suction cup 10, and the circuit board 26 and the connecting belt 5 are prevented from being separated, the circuit board 26 and the connecting belt 5 can be prevented from moving relatively through the structure, the circuit board 26 can be further protected, and the connecting tube 21 is facilitated to move on the support plate 9 through the arranged chute 18, interference of the connecting tube 21 is avoided, and the interference between the two connecting tubes is avoided, and the connecting tube 22 and the hose 8 are arranged to be beneficial to be prevented from moving;
after the test is finished, the compression bar 2 moves upwards to reset, the circuit board 26 is reset at the assembly, the supporting plate 9 is gradually reset under the action of the third spring at the moment, so that the traction rope 12 is loosened, the pressing plate 25 is driven to reset under the action of the second spring 23, and the gas in the sealed cavity 24 is extruded into the sucker 10 through the flow guide pipe 8 and the transverse pipe 22, so that the sucker 10 and the circuit board 26 can be separated from each other, and the circuit board 26 is convenient to take down;
in addition, the device is matched with the circuit board 26 through the sucker 10, when the circuit board 26 breaks in the testing process, the disconnected circuit board 26 can be adsorbed through the sucker 10, so that the situation that workers are accidentally injured is avoided.
As shown in fig. 3, 4 and 6, a support 11 is fixedly connected to the inner side of the support plate 9, the support 11 is located at the bottom of the support plate 9, a limiting shaft 17 is also arranged on the inner side of the support plate 9, the free end of the connecting belt 5 extending to the bottom of the support plate 9 bypasses the outer side of the limiting shaft 17, a sliding rod 14 is fixedly connected to the top of the support 11, the sliding rod 14 is arranged at two ends of the limiting shaft 17, the sliding rod 14 penetrates through the limiting shaft 17 and is in sliding connection with the limiting shaft 17, a first spring 15 is sleeved on the outer side of the sliding rod 14, and the first spring 15 is arranged between the support 11 and the limiting shaft 17.
A plurality of round holes 7 are uniformly formed in the top of the slag storage belt 6.
When in actual use, after the sucking disc 10 and the circuit board 26 are sucked, the pressure lever 2 continuously drives the circuit board 26 to move downwards to bend, the circuit board 26 can drive the connecting belt 5 to move towards the direction away from the vertical plate 4 on the supporting plate 9, thereby forming traction force for the connecting belt 5 at the bottom of the supporting plate 9, thereby driving the connecting belt 5 at the bottom of the supporting plate 9 to move upwards, the slag storage belt 6 between the two connecting belts 5 can gradually approach the circuit board 26, therefore, when the circuit board 26 is broken in the pressure test process, the generated broken slag can splash downwards, and falls onto the slag storage belt 6, meanwhile, a plurality of round holes 7 are uniformly formed in the slag storage belt 6, when the broken slag splashes into the round holes 7, the broken slag can be further limited, so as to avoid the broken slag storage belt 6 from flying out, thereby being beneficial to collecting the broken slag better, after the test is completed, the pressure lever 2 moves upwards, the limiting shaft 17 is driven downwards to move under the action force of the first spring 15, thereby driving the slag storage belt 6 to reset.
To sum up, this structure is through being provided with the sediment area 6 in backup pad 9 bottom, and when depression bar 2 pushed down circuit board 26 makes its crooked at the in-process of pressure test, sediment area 6 is close to circuit board 26 gradually, and when circuit board 26 rupture, the piece can splash to the round hole 7 on the sediment area 6 inside to collect the piece, avoid its accidental injury staff.
In addition, through being provided with pressure sensor 19 in backup pad 9 one side, the link electric connection of pressure sensor 19 has the controller during the in-service use, and the controller can be PLC or singlechip to controller and outside display electric connection or be connected through wireless communication's mode, when pressure sensor 19 detects the pressure that circuit board 26 born when crooked, carry this analog signal to controller department, carry to the display after controller analysis and processing and show, thereby be favorable to the staff to observe the pressure that circuit board 26 received in real time.
The pulley is arranged at the bending part of the traction rope 12 and is respectively and fixedly connected with the inner side and the outer side of the sealed cabin 3, so that the moving stability of the traction rope 12 is improved, the hinging seat is fixedly connected with the bottom of the supporting plate 9 and the inner side surface of the vertical plate 4, the hinging plates matched with the hinging seat are fixedly connected with the bottom of the first supporting rod 13 and the top of the second supporting rod 20, meanwhile, the pin shafts are fixedly connected with the front side and the rear side of the supporting plate 9, and the supporting plate 9 is hinged with the fixing blocks on the vertical plate 4 through the pin shafts.

Claims (6)

1. Automatic detection device for PCB board pressure test, including two risers that the symmetry set up, its characterized in that: the inner sides of the vertical plates are rotatably provided with supporting plates, circuit boards are placed at the tops of the two supporting plates, and compression bars are arranged at the tops of the circuit boards;
a transmission assembly is arranged between the two support plates, and when the circuit board is pressed by the pressure rod to bend downwards, the support plates are driven to rotate downwards, and meanwhile, the circuit board and the transmission assembly synchronously move at the top of the support plates;
the transmission assembly comprises a connecting belt and a slag storage belt, wherein the connecting belt is arranged on the supporting plate, one end of the connecting belt is fixedly connected to the bottom of the supporting plate, the other end of the connecting belt is a free end, the free end extends towards one side, far away from the vertical plate, of the supporting plate and is arranged at the top of the supporting plate, the free end of the connecting belt passes through the supporting plate downwards after passing through one end, fixed with the supporting plate, of the connecting belt, and extends to the bottom of the supporting plate, and the slag storage belt is fixedly connected between the two connecting belts;
the top of the vertical plate is provided with a sealing bin, the inside of the sealing bin is connected with a pressing plate in a sliding manner, and a space inside the sealing bin, which is positioned at the top of the pressing plate, is provided with a sealing cavity;
the connecting device comprises a supporting plate, a connecting belt, a vertical plate, a sucker, a connecting pipe, a transverse pipe, a sealing chamber and a sealing chamber, wherein the supporting plate is provided with a through groove which is communicated with the through groove, the through groove is arranged along the length direction of the supporting plate, the sucker is arranged on one side, close to the vertical plate, of the top of the connecting belt, the bottom end of the sucker is connected with the connecting pipe, the connecting pipe penetrates through the top of the connecting belt and the supporting plate and extends to the inside of the through groove in the supporting plate, the supporting plate is provided with a chute matched with the connecting pipe, the connecting pipe enters the inside of the supporting plate through the chute, the inside of the supporting plate is provided with the transverse pipe, one end, far from the sucker, of the connecting pipe is communicated with the transverse pipe, a flow guiding pipe is arranged between the transverse pipe and the sealing chamber, and the other end of the flow guiding pipe penetrates through the sealing chamber and is communicated with the sealing chamber;
a traction rope is arranged between the pressing plate and the supporting plate, one end of the traction rope is arranged at the bottom of the pressing plate and is fixed with the pressing plate, and the other end of the traction rope penetrates out of the sealing bin and is fixed with the top surface of the supporting plate;
the connecting pipe, the transverse pipe and the flow guiding pipe are all arranged as hoses.
2. The automatic detection device for pressure testing of a PCB board according to claim 1, wherein: the support assembly comprises a first support rod and a second support rod, wherein the second support rod is of a cylindrical structure with an inner cavity, the first support rod is in sliding connection with the second support rod through the cavity, a third spring is arranged in the cavity on the second support rod, the bottom end of the first support rod is hinged to the vertical plate, and the top end of the second support rod is hinged to the top of the support plate.
3. The automatic detection device for pressure testing of a PCB board according to claim 1, wherein: the inside fixedly connected with support of backup pad, the support is located the bottom of backup pad, the inboard of backup pad is provided with spacing axle, the connecting band extends to the free end of backup pad bottom and walks around from the outside of spacing axle, the top fixedly connected with slide bar of support, the slide bar sets up in the both ends of spacing axle, the slide bar runs through spacing axle and with spacing axle sliding connection, the outside cover of slide bar is equipped with first spring, first spring sets up between support and spacing axle, and a plurality of round holes have evenly been seted up at the top of storing up the sediment area.
4. The automatic detection device for pressure testing of a PCB board according to claim 1, wherein: the pressure sensor is installed to one side of backup pad far away from the riser, pressure sensor's link electric connection has the controller, controller and external display electric connection.
5. The automatic detection device for pressure testing of a PCB board according to claim 1, wherein: the top of riser is provided with the crossbeam, the top fixedly connected with hydraulic stem of crossbeam, the flexible end of hydraulic stem passes the crossbeam and extends to the bottom of crossbeam, the depression bar is connected with the flexible end of hydraulic stem.
6. The automatic detection device for pressure testing of a PCB board according to claim 1, wherein: the outside of clamp plate is provided with the sealing strip, the sealing strip is made by rubber material.
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