CN216646583U

CN216646583U - High accuracy needle bed formula PCB board automatic test machine

Info

Publication number: CN216646583U
Application number: CN202122964777.8U
Authority: CN
Inventors: 李亚军; 侯胜杰
Original assignee: Fuhua Technology Shenzhen Co ltd
Current assignee: Fuhua Technology Shenzhen Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-05-31
Anticipated expiration: 2031-11-29

Abstract

The utility model provides a high-precision needle bed type PCB automatic testing machine; comprises a base; install the workstation through the bolt on the top outer wall of base, and install the support frame through the bolt on the top outer wall of workstation, install the electric telescopic handle who is the equidistance and distributes through the bolt on the top outer wall of support frame, and electric telescopic handle's output passes through the bolt and installs the top cap, install the needle bed through the bolt on the bottom outer wall of top cap, it has the slot that is the equidistance and distributes to open on the bottom inner wall of needle bed, and the inside of slot is pegged graft and is had the detection needle. The detection needles retract into the slots under the normal state, when the PCB needs to be detected, the air pump can eject out the detection needles at the corresponding positions, so that the detection needles form a required structural array, the needle bed can be suitable for detecting various different PCBs, the waste of resources is greatly reduced, and the cost is reduced.

Description

High accuracy needle bed formula PCB board automatic test machine

Technical Field

The utility model relates to the technical field of PCB (printed circuit board) testing, in particular to a high-precision needle bed type PCB automatic testing machine.

Background

The PCB is also called a printed circuit board, and is an important electronic component, a support of the electronic component, and a carrier for electrical interconnection of the electronic component, and since it is manufactured by electronic printing, it is called a "printed" circuit board, and almost every electronic device, as small as an electronic watch, a calculator, as large as a computer, a communication electronic device, and a military weapon system, as long as there are electronic components such as an integrated circuit, etc., the PCB is used to electrically interconnect the components.

The existing needle bed of the PCB automatic testing machine is usually a fixed structure, and a corresponding needle bed is required to be used according to the structure of the PCB to be tested, so that when a new PCB needs to be tested, additional expenses are required to manufacture and purchase a new needle bed structure, the old needle bed structure is useless, resources are wasted, and the cost is high. Therefore, it is necessary to design a high-precision pin bed type PCB automatic testing machine to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art, adapt to the practical requirements and provide a high-precision needle bed type PCB automatic testing machine.

In order to realize the purpose of the utility model, the technical scheme adopted by the utility model is as follows:

designing a high-precision needle bed type PCB automatic testing machine, which comprises a base; the detection device comprises a base, a workbench, a support frame, electric telescopic rods, a top cover, a needle bed, springs, an air pipe, a solenoid valve, an air pump and a connecting pipe, wherein the workbench is installed on the outer wall of the top of the base through bolts, the support frame is installed on the outer wall of the top of the workbench through bolts, the electric telescopic rods which are distributed equidistantly are installed on the outer wall of the top of the support frame through bolts, the top cover is installed at the output ends of the electric telescopic rods through bolts, the needle bed is installed on the outer wall of the bottom of the top cover through bolts, slots which are distributed equidistantly are formed in the inner wall of the bottom of the needle bed, the detection needles are inserted into the slots, the top ends of the detection needles are connected with pistons in a threaded manner, springs are sleeved outside the detection needles and are located between the outer wall of the bottom of the pistons and the inner wall of the bottom of the slots, the top ends of the slots are connected with the air pipe in a threaded manner, the solenoid valve is connected to the outer wall of the top of the support frame through bolts, and the connecting pipe is inserted into the output end of the air pump, the trachea link up each other with the connecting pipe, install the controller through the bolt on the outer wall of one side of support frame, and the controller is electric connection with air pump, electric telescopic handle and solenoid valve respectively.

Furthermore, tracheal one end joint has the connector, and connector threaded connection is on the top of slot.

Furthermore, a carbon brush is clamped on the outer wall of one side of the slot and is in mutual contact with the detection needle, a flat cable is inserted into the outer wall of the top of the support frame, a detection line is electrically connected to the outer wall of one side of the carbon brush, and the detection line is electrically connected with the flat cable.

Further, integrated into one piece has the uide bushing that is the equidistance and distributes on the top outer wall of support frame, install the guide bar through the bolt on the top outer wall of top cap, and guide bar sliding connection is in the inside of uide bushing.

Furthermore, an observation window is arranged on the outer wall of one side of the support frame, and protective glass is clamped inside the observation window.

Furthermore, the outer wall of the top of the workbench is provided with a connecting groove, and the connecting groove is positioned below the needle bed.

Further, the outer wall of one side of the base is rotatably connected with cabinet doors which are distributed equidistantly through hinges, and the outer wall of one side of each cabinet door is provided with a handle through bolts.

The utility model has the beneficial effects that:

1. the detection needles retract into the slots in a normal state, when the PCB needs to be detected, the air pump can eject the detection needles at the corresponding positions out, so that the detection needles form a required structure array, the needle bed can be suitable for detection of various different PCBs, the resource waste is greatly reduced, and the cost is reduced.

2. The carbon brush is connected with the detection needle, so that the detection needle can be powered on and off through the detection line, the device can detect the physical structure of the PCB, the PCB can be tested through current, the detection accuracy is improved, and the poor-quality PCB is detected.

3. The connecting groove is reserved in advance, so that the device can conveniently install and fix the conveying mechanism, the device can be suitable for an original conveying assembly line of a factory, and the use is more convenient.

Drawings

FIG. 1 is a schematic structural diagram of the present design;

FIG. 2 is a schematic view of the needle bed structure of the present design;

FIG. 3 is a partial enlarged view of structure A of the present design;

fig. 4 is a schematic structural flow diagram of the present design.

In the figure:

1. a work table; 2. connecting grooves; 3. a support frame; 4. an electric telescopic rod; 5. a needle bed; 6. an air pump; 7. arranging wires; 8. a guide sleeve; 9. a guide rod; 10. a controller; 11. a base; 12. a cabinet door; 13. a handle; 14. an observation window; 15. protective glass; 16. a top cover; 17. a connecting pipe; 18. a slot; 19. detecting a needle; 20. a piston; 21. a spring; 23. an air pipe; 24. an electromagnetic valve; 25. a carbon brush; 26. and (6) detecting lines.

Detailed Description

The utility model is further illustrated with reference to the following figures and examples:

example 1: a high-precision needle bed type automatic PCB testing machine, which is shown in figures 1 to 4.

The high-precision needle bed type PCB automatic testing machine comprises a base 11; the outer wall of the top of the base 11 is provided with a workbench 1 through bolts, the outer wall of the top of the workbench 1 is provided with a support frame 3 through bolts, the outer wall of the top of the support frame 3 is provided with electric telescopic rods 4 distributed equidistantly through bolts, the type of the electric telescopic rods 4 is preferably in a non-standard type and is used for driving the needle bed 5 to move up and down, the output end of the electric telescopic rods 4 is provided with a top cover 16 through bolts, the outer wall of the bottom of the top cover 16 is provided with the needle bed 5 through bolts, the inner wall of the bottom of the needle bed 5 is provided with slots 18 distributed equidistantly, detection needles 19 are inserted into the slots 18 and are used for detecting a PCB, the top ends of the detection needles 19 are connected with pistons 20 through threads, springs 21 are sleeved outside the detection needles 19, the springs 21 can enable the detection needles 19 to retract into the slots 18 in a normal state, and the springs 21 are positioned between the outer wall of the bottom of the pistons 20 and the inner walls of the slots 18, the top end of the slot 18 is in threaded connection with an air pipe 23, the external thread of the air pipe 23 is connected with an electromagnetic valve 24, the electromagnetic valve 24 is used for controlling on-off of the air pipe 23, an air pump 6 is mounted on the outer wall of the top of the support frame 3 through a bolt, the type of the air pump 6 is preferably XS-15 and used for ejecting the detection needle 19 through air pressure, a connecting pipe 17 is connected to the output end of the air pump 6 in an inserting mode, the air pipe 23 is communicated with the connecting pipe 17, a controller 10 is mounted on the outer wall of one side of the support frame 3 through a bolt, the type of the controller 10 is preferably KV-N40DTP and used for controlling other electrical elements, and the controller 10 is electrically connected with the air pump 6, the electric telescopic rod 4 and the electromagnetic valve 24 respectively.

Furthermore, the one end joint of trachea 23 has connector 22, and connector 22 is used for fixed trachea 23, and connector 22 threaded connection is on the top of slot 18.

Further, a carbon brush 25 is clamped on the outer wall of one side of the slot 18, the carbon brush 25 is used for transmitting current to the detection pin 19, the carbon brush 25 is in contact with the detection pin 19, the flat cable 7 is inserted into the outer wall of the top of the support frame 3, a detection line 26 is electrically connected to the outer wall of one side of the carbon brush 25, the detection line 26 is used for being electrified, and the detection line 26 is electrically connected with the flat cable 7.

Further, integrated into one piece has the uide bushing 8 that is the equidistance and distributes on the top outer wall of support frame 3, installs guide bar 9 through the bolt on the top outer wall of top cap 16, and guide bar 9 sliding connection is in the inside of uide bushing 8, and guide bar 9 and uide bushing 8 are used for leading for needle bed 5.

Further, open on one side outer wall of support frame 3 has observation window 14, and observation window 14 can make things convenient for operating personnel to observe and monitor the testing process, and the inside joint of observation window 14 has protective glass 15.

Furthermore, the top outer wall of the working table 1 is provided with a connecting groove 2, the connecting groove 2 is used for fixing an external conveying structure, and the connecting groove 2 is positioned below the needle bed 5.

Further, be connected with the cabinet door 12 that is the equidistance and distributes through the hinge rotation on the outer wall of one side of base 11, cabinet door 12 can the person of facilitating the use store article, and installs handle 13 through the bolt on one side outer wall of cabinet door 12, and handle 13 can conveniently open cabinet door 12.

The working principle is as follows: during the use, operating personnel is at first connected controller 10 and winding displacement 7 with external device, fix conveying mechanism 2 in the inside of spread groove 2 again, operating personnel is inside leading-in controller 10 with required detection needle 19 array after that, controller 10 controls air pump 6 to start, and control corresponding solenoid valve 24 and open, thereby make air pump 6 pass through connecting pipe 17 and trachea 23 pump into corresponding slot 18 inside, make the air push out corresponding detection needle 19, so that detection needle 19 constitutes corresponding array, treat that conveying device carries the PCB board to the below of needle bed 5 after, controller 10 controls electric telescopic handle 4 to start, electric telescopic handle 4 drives needle bed 5 downstream, thereby make needle bed 5 detect the PCB board.

The embodiments of the present invention are disclosed as the preferred embodiments, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention and make various extensions and changes without departing from the spirit of the present invention.

Claims

1. A high-precision needle bed type PCB automatic testing machine comprises a base (11); the method is characterized in that: the detection device is characterized in that a workbench (1) is installed on the outer wall of the top of the base (11) through bolts, a support frame (3) is installed on the outer wall of the top of the workbench (1) through bolts, electric telescopic rods (4) which are distributed equidistantly are installed on the outer wall of the top of the support frame (3) through bolts, a top cover (16) is installed at the output end of the electric telescopic rods (4) through bolts, needle beds (5) are installed on the outer wall of the bottom of the top cover (16) through bolts, slots (18) which are distributed equidistantly are formed in the inner wall of the bottom of each needle bed (5), detection needles (19) are inserted into the slots (18), pistons (20) are connected to the top ends of the detection needles (19) through threads, springs (21) are sleeved outside the detection needles (19), and the springs (21) are located between the outer wall of the bottom of the pistons (20) and the inner wall of the bottom of the slots (18), the top end threaded connection of slot (18) has trachea (23), and the outside threaded connection of trachea (23) has solenoid valve (24), install air pump (6) through the bolt on the top outer wall of support frame (3), and the output of air pump (6) is pegged graft and is had connecting pipe (17), trachea (23) link up each other with connecting pipe (17), install controller (10) through the bolt on the outer wall of one side of support frame (3), and controller (10) are electric connection with air pump (6), electric telescopic handle (4) and solenoid valve (24) respectively.

2. The high-precision pin bed type PCB board automatic testing machine of claim 1, characterized in that: one end joint of trachea (23) has connector (22), and connector (22) threaded connection is on the top of slot (18).

3. The high-precision pin bed type PCB board automatic testing machine of claim 1, characterized in that: the carbon brush (25) is clamped on the outer wall of one side of the slot (18), the carbon brush (25) is in contact with the detection needle (19), the flat cable (7) is inserted into the outer wall of the top of the support frame (3), the detection line (26) is electrically connected to the outer wall of one side of the carbon brush (25), and the detection line (26) is electrically connected with the flat cable (7).

4. The high-precision pin bed type PCB board automatic testing machine of claim 1, characterized in that: the integrated into one piece has uide bushing (8) that are the equidistance and distribute on the top outer wall of support frame (3), install guide bar (9) through the bolt on the top outer wall of top cap (16), and guide bar (9) sliding connection is in the inside of uide bushing (8).

5. The high-precision pin bed type PCB board automatic testing machine of claim 1, characterized in that: an observation window (14) is arranged on the outer wall of one side of the support frame (3), and protective glass (15) is clamped inside the observation window (14).

6. The high-precision pin bed type PCB board automatic testing machine of claim 1, characterized in that: the outer wall of the top of the workbench (1) is provided with a connecting groove (2), and the connecting groove (2) is positioned below the needle bed (5).

7. The high-precision pin bed type PCB board automatic testing machine of claim 1, characterized in that: the cabinet door structure is characterized in that cabinet doors (12) which are distributed equidistantly are rotatably connected to the outer wall of one side of the base (11) through hinges, and handles (13) are mounted on the outer wall of one side of each cabinet door (12) through bolts.