CN211955724U

CN211955724U - PCBA board tester of twenty passageways

Info

Publication number: CN211955724U
Application number: CN201922090975.9U
Authority: CN
Inventors: 马文祥; 张立明; 马二飞; 张彬
Original assignee: Beijing Xingbang Digital Technology Co ltd
Current assignee: Beijing Xingbang Digital Technology Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-11-17
Anticipated expiration: 2029-11-28

Abstract

The utility model relates to the technical field of PCBA board testing, and discloses a PCBA board tester with twenty channels, which comprises a base, a PCBA support plate and an upper template, wherein the probe card is provided with twenty channels; the base is provided with a PCBA carrier plate, and a PCBA to be detected is placed on the PCBA carrier plate; the upper template is movably arranged on the base through the mounting frame, and the upper template is provided with the probe board placing device, so that the probe board can be quickly disassembled and assembled and fixed, the operation is simple and convenient, and the working efficiency can be improved; the ejection mechanism is arranged in the base, a plurality of first through holes are formed in the base, and the ejection mechanism penetrates through the first through holes and is positioned right below the PCBA carrier plate; the knock-out lever lifts up the PCBA board that the inspection was accomplished, but the staff both hands take up the PCBA board from the back of PCBA board, convenient operation is difficult to damage the PCBA board moreover.

Description

PCBA board tester of twenty passageways

Technical Field

The utility model relates to a PCBA board test technical field discloses a PCBA board tester of twenty passageways.

Background

PCB boards, also known as printed circuit boards, are providers of electrical connections for electronic components. The circuit board has the main advantages of greatly reducing errors of wiring and assembly, and improving the automation level and the production labor rate. The PCB blank is loaded by SMT or processed by the whole process of DIP plug-in, which is called PCBA for short. The PCB blank board is a circuit connecting technology which is characterized in that a pin-free or short-lead surface assembly component is arranged on the surface of a PCB circuit board or the surface of other substrates and is welded and assembled by methods such as reflow soldering or dip soldering.

PCBA circuit board is before dispatching from the factory, all must test the circuit board, and current detection mode is: a worker places the PCBA board in the fixing groove of the PCBA carrier plate and uses the probe to detect; after the detection is finished, a worker can only pull one side of the PCBA first by fingers and then take out the PCBA, so that the PCBA is extremely easy to damage; in addition, the probe card for detecting the PCBA board is fixed on the detection equipment through screws, and the probe card is required to be disassembled and then installed when different types of probe cards are replaced, so that the disassembly and the assembly are very inconvenient and the working efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

To the deficiency that prior art exists, the utility model aims to provide a PCBA board tester of twenty passageways solves above-mentioned problem.

A PCBA board tester with twenty channels comprises a base, a PCBA carrier plate, an upper template and a probe board, wherein the probe board is provided with twenty channels; the base is provided with a PCBA carrier plate, and a PCBA to be detected is placed on the PCBA carrier plate; the upper template is movably arranged on the base through a mounting frame, and is provided with a probe card placing device which can be used for quickly dismounting and fixing the probe card;

the PCB carrier plate ejection mechanism comprises a base, and is characterized by further comprising an ejection mechanism, wherein the ejection mechanism is arranged inside the base, a plurality of first through holes are formed in the base, and the ejection mechanism penetrates through the first through holes and is located under the PCBA carrier plate.

Preferably, the ejection mechanism comprises an ejection frame and a plurality of ejection rods arranged on the ejection frame, the PCBA carrier plate is provided with a plurality of second through holes, and the ejection rods sequentially slide through the first through holes and the second through holes.

Preferably, the bottom of the ejection frame is provided with a top plate, the top plate is connected with a driving ejection mechanism, and the driving ejection mechanism is a first air cylinder. After the detection is finished, the output end of the first air cylinder drives the top plate and the ejector rod fixed above the top plate to move upwards, and the ejector rod penetrates through the first through hole and the second through hole in sequence to lift up the PCBA board after the detection is finished.

Preferably, the mounting frame comprises an upright post fixed on the base, a mounting plate mounted on the upright post, and a driving moving mechanism for driving the upper template to move towards the probe card, the driving moving mechanism is a second cylinder, and the output end of the driving moving mechanism is fixedly connected with the upper template; when the detection is started, the output end of the second air cylinder drives the upper template and the probe board to move towards the direction of the PCBA carrier plate, when the PCBA carrier plate is contacted, the second air cylinder stops outputting, and the probe starts to detect the PCBA carrier plate.

Preferably, the probe card placement apparatus includes: the probe board placing frame is internally provided with a first slide way, the probe board is inserted into the first slide way in a sliding manner, one side of the first slide way is provided with at least two third through holes, each third through hole is internally provided with one bolt in a sliding manner, the placing frame is internally provided with a groove communicated with the third through holes, a spring is arranged in the groove, and two ends of the spring are respectively connected with the interior of the groove and the bolts, so that the bolts extend out of the third through holes under the elastic force of the spring to fix the probe board; a second slideway is arranged on the side surface of the probe board placing device, a plurality of pins are connected through a connecting column, and a hook handle is arranged at the tail part of the connecting column and penetrates through the second slideway; when the probe card is replaced, only the pull hook needs to be pulled, the bolt compresses the spring under the action of the connecting column, the spring is retracted into the third through hole, the probe card is taken out, then other replaced probe cards are placed into the needle plate along the first slide way, the frame is placed, the pull hook is loosened, and the bolt stretches out the third through hole under the action of the spring to fix the other replaced probe cards.

Preferably, a control system is arranged in the base, a display screen is arranged on the base, the probe board and the display screen are electrically connected with the control system, the probe board transmits the data detected by the probe board to the control system, and the control system feeds back the detection result to the display screen.

Preferably, a heat radiation fan is further arranged in the base, and a heat radiation fan switch connected with the heat radiation fan is arranged on the base; when the machine runs for a long time and the machine body is overheated, the switch of the cooling fan is turned on, so that the machine body can be cooled quickly.

Preferably, carrying handles are arranged on two opposite sides of the base, and the carrying handles are designed to be concave or convex; the design is convenient for moving the machine body.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses the device is equipped with ejection mechanism, detects the back that finishes, and the knockout rod stretches out first, second through-hole, lifts up the PCBA board that the inspection was accomplished, but the staff both hands take up the PCBA board from the back of PCBA board, convenient operation is difficult to damage the PCBA board moreover.

(2) The utility model discloses the device is equipped with the faller and lays the frame, adopts the mode of screw fixation than the tradition, can quick assembly disassembly probe card and make it fixed, and is easy and simple to handle can improve work efficiency.

Drawings

Fig. 1 is a schematic structural diagram of a PCBA board tester with twenty channels in this embodiment.

Fig. 2 is a schematic structural diagram of an ejection mechanism of a PCBA board tester with twenty channels in this embodiment.

FIG. 3 is a cross-sectional view of a twenty-channel PCBA board tester probe card mounting apparatus in this embodiment.

Fig. 4 is a structural diagram of a probe card mounting apparatus for a twenty-channel PCBA board tester according to this embodiment.

In the drawings: the probe card comprises a base 1, a PCBA carrier plate 2, an upper template 3, a probe plate 4, a carrying handle 5, a display screen 6, a radiator fan 7, a radiator fan switch 8, a probe plate placing device 9, an ejection mechanism 10, a hook handle 11, an ejection frame 12, an ejection rod 13, a top plate 14, a spring 15, a column 16, a mounting plate 17, a needle plate placing frame 18, a plug 19 and a connecting column 20.

Detailed Description

Not enough to prior art exists, the utility model aims to provide a PCBA board tester of twenty passageways solves above-mentioned problem, in order to realize above-mentioned purpose, the utility model provides a following technical scheme:

the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, a PCBA board tester with twenty channels includes a base 1, a PCBA carrier board 2, an upper die board 3, and a probe board 4, where the probe board 4 is twenty channels, and the twenty channels are twenty probe heads; the base 1 is provided with a PCBA carrier plate 2, and a PCBA plate to be detected is placed on the PCBA carrier plate 2; the upper template 3 is movably arranged on the base 1 through a mounting frame, and the upper template 3 is provided with a probe card placing device 9 which can quickly disassemble and assemble the probe card 4 and fix the probe card;

the PCBA carrier plate comprises a base and is characterized by further comprising an ejection mechanism 10, wherein the ejection mechanism 10 is arranged inside the base 1, four first through holes are formed in the base 1, and the ejection mechanism 10 penetrates through the first through holes and is located right below the PCBA carrier plate 2.

Preferably, the ejection mechanism 10 includes an ejection frame 12 and four ejection rods 13 mounted on the ejection frame 12, the PCBA carrier plate 2 is provided with four second through holes, and the ejection rods 13 sequentially slide through the first through holes and the second through holes.

Preferably, the bottom of the ejection frame 12 is provided with a top plate 14, the top plate 14 is connected with a driving ejection mechanism, and the driving ejection mechanism is a first air cylinder. After the detection is finished, the output end of the first air cylinder drives the top plate 14 and the ejector rod 13 fixed above the top plate to move upwards, and the ejector rod 13 sequentially penetrates through the first through hole and the second through hole to lift up the PCBA board after the detection is finished.

Preferably, the mounting frame comprises an upright post 16 fixed on the base, a mounting plate 17 mounted on the upright post 16, and a driving moving mechanism for driving the upper template 3 to move towards the probe card 4, wherein the driving moving mechanism is a second cylinder, and the output end of the driving moving mechanism is fixedly connected with the upper template 3; when the detection is started, the output end of the second air cylinder drives the upper template 3 and the probe plate 4 to move towards the PCBA carrier plate 2, when the PCBA carrier plate is contacted, the second air cylinder stops outputting, and the probe starts to detect the PCBA carrier plate.

Preferably, the probe card placement device 9 includes: the probe board placing frame comprises a needle board placing frame 18 and a bolt 19, a first slide way is arranged inside the needle board placing frame 18, the probe board 4 is inserted into the first slide way in a sliding mode, two third through holes are formed in one side of the first slide way, one bolt 19 is arranged in each third through hole in a sliding mode, a groove communicated with the third through holes is formed inside the placing frame 18, a spring 15 is arranged inside the groove, and two ends of the spring 15 are respectively connected with the inside of the groove and the bolt 19, so that the bolt 19 extends out of the third through holes under the elastic force of the spring 15 to fix the probe board 4; a second slideway is arranged on the side surface of the probe board placing device 9, the pins 19 are connected through a connecting column 20, a hook handle 11 is arranged at the tail part of the connecting column 20, and the hook handle 11 penetrates through the second slideway; when probe card 4 needs to be replaced, only need the pulling to collude handle 11, bolt 19 compresses the spring under the effect of spliced pole 20, and in the retraction third through-hole, take out probe card 4, then put into faller along first slide with other probe cards of changing and lay inside frame 18, loosen and collude handle 11, bolt 19 stretches out the third through-hole under spring 15 effect, fixes other probe cards of changing.

Preferably, a control system is arranged in the base 1, a display screen 6 is arranged on the base 1, the probe board 4 and the display screen 6 are electrically connected with the control system, the probe board 4 transmits the data detected by the probe board to the control system, and the control system feeds back the detection result to the display screen 6.

Preferably, a heat radiation fan 7 is further arranged in the base 1, and a heat radiation fan switch 8 connected with the heat radiation fan 7 is arranged on the base 1; when the machine runs for a long time and the machine body is overheated, the heat dissipation fan switch 8 is turned on, so that heat can be quickly dissipated for the machine body.

Preferably, carrying handles 5 are arranged on two opposite sides of the base 1, and the carrying handles 5 are designed to be concave; the design is convenient for moving the machine body and reducing the weight of the machine body.

The working principle is as follows:

when the detection is started, the PCBA to be detected is placed on the PCBA carrier plate 2, the second cylinder switch is pressed, the probe plate 4 moves towards the PCBA carrier plate 2 under the action of the output end of the second cylinder, when the probe is abutted to the PCBA, the second cylinder stops outputting, and the probe transmits detected data to the display screen 6 through the control system; after the detection is finished, a first air cylinder switch is pressed, the first air cylinder of the top plate 14 drives the ejector rod 13 to move upwards under the action of the output end, the ejector rod 13 sequentially penetrates through the first through hole and the second through hole, the PCBA board which is detected is lifted, and after the PCBA board is taken out by a worker, the ejector rod 13 descends to the initial position; when probe card 4 needs to be replaced, only need the pulling to collude handle 11, bolt 19 compresses spring 15 under the effect of spliced pole 20, and in the retraction third through-hole, take out probe card 4, then put into faller along first slide with other probe cards of changing and lay inside frame 18, loosen and collude handle 11, bolt 19 stretches out the third through-hole under the spring action, other probe cards of fixed change.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims

1. The utility model provides a PCBA board tester of twenty passageways which characterized in that: the probe comprises a base (1), a PCBA carrier plate (2), an upper die plate (3) and a probe plate (4), wherein the probe plate (4) is twenty channels; the base (1) is provided with a PCBA carrier plate (2), and a PCBA to be detected is placed on the PCBA carrier plate (2); the upper template (3) is movably arranged on the base (1) through a mounting frame, and the upper template (3) is provided with a probe card placing device (9) which can rapidly disassemble and assemble the probe card (4) and fix the probe card;

the PCB carrier plate structure is characterized by further comprising an ejection mechanism (10), wherein the ejection mechanism (10) is arranged inside the base (1), a plurality of first through holes are formed in the base (1), and the ejection mechanism (10) penetrates through the first through holes and is located under the PCBA carrier plate (2).

2. A twenty-channel PCBA board tester as claimed in claim 1, wherein: the ejection mechanism (10) comprises an ejection frame (12) and a plurality of ejection rods (13) arranged on the ejection frame (12), the PCBA carrier plate (2) is provided with a plurality of second through holes, and the ejection rods (13) sequentially slide through the first through holes and the second through holes.

3. A twenty-channel PCBA board tester as claimed in claim 2, wherein: the bottom of the ejection frame (12) is provided with a top plate (14), the top plate (14) is connected with a driving ejection mechanism, and the driving ejection mechanism is a first air cylinder.

4. A twenty-channel PCBA board tester as claimed in claim 1, wherein: the mounting bracket is including fixing stand (16), installation on base (1) mounting panel (17) on stand (16) and be used for the drive cope match-plate pattern (3) are to the drive moving mechanism of probe card (4) removal, drive moving mechanism is the second cylinder, its output with cope match-plate pattern (3) fixed connection.

5. A twenty-channel PCBA board tester as claimed in claim 1, wherein: the probe card mounting apparatus (9) includes: the probe board placing frame comprises a needle board placing frame (18) and a bolt (19), a first slide way is arranged inside the needle board placing frame (18), the probe board (4) is inserted into the first slide way in a sliding mode, at least two third through holes are formed in one side of the first slide way, one bolt (19) is arranged in each third through hole in a sliding mode, a groove communicated with the third through holes is formed in the placing frame (18), a spring (15) is arranged inside the groove, and two ends of the spring (15) are respectively connected with the inside of the groove and the bolt (19), so that the bolt (19) extends out of the third through holes under the elastic force of the spring (15) to fix the probe board (4); device (9) side is laid to the probe card is equipped with the second slide, and is a plurality of connect through spliced pole (20) between bolt (19), spliced pole (20) afterbody is equipped with colludes handle (11), collude handle (11) and run through the second slide.

6. A twenty-channel PCBA board tester as recited in claim 4, wherein: the probe card is characterized in that a control system is arranged in the base (1), a display screen (6) is arranged on the base (1), the probe card (4) and the display screen (6) are electrically connected with the control system, the probe card (4) transmits data detected by the probe card to the control system, and the control system feeds back a detection result to the display screen (6).

7. A PCBA board tester as claimed in claim 6, in which: still be equipped with radiator fan (7) in base (1), be equipped with on base (1) with radiator fan switch (8) that radiator fan (7) are connected.

8. A PCBA board tester as claimed in claim 1, wherein: the carrying handle is characterized in that carrying handles (5) are arranged on two opposite sides of the base (1), and the carrying handles (5) are designed to be concave or convex.