CN217879518U

CN217879518U - Efficient PCBA test fixture

Info

Publication number: CN217879518U
Application number: CN202221626348.8U
Authority: CN
Inventors: 陈荣昌; 史春燕; 刘飞
Original assignee: Yixing Xingsen Express Electronics Co ltd
Current assignee: Yixing Xingsen Express Electronics Co ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-11-22
Anticipated expiration: 2032-06-28

Abstract

The utility model discloses an efficient PCBA test fixture, including the testboard, the top front side of testboard is provided with the spout, the spout bottom equidistance parallel arrangement has three air suction pipe, the internally mounted of testboard has the suction fan and the bottom is provided with the opening, three air suction pipe link up to suction fan position department, slidable mounting has the locating plate in the spout, be provided with three constant head tank on the locating plate, the bottom center of three constant head tank is provided with the perforating hole, three the perforating hole respectively with three air suction pipe position corresponding, and three PCBA board has all been placed in the constant head tank, the top rear side of testboard is provided with detection mechanism, through the cooperation of testboard and locating plate, thereby need not the anchor clamps and can fix PCBA board, prevent that the mounting fixture from causing the damage to the electrical component on PCBA board surface; synchronous detection of three PCBA boards can be synchronously realized through the detection mechanism, and the test efficiency is improved.

Description

Efficient PCBA test fixture

Technical Field

The utility model relates to a PCBA detection area, concretely relates to efficient PCBA test fixture.

Background

PCBA is the abbreviation of English Printed Circuit Board + Assembly, namely the PCB blank Board is firstly processed by SMT (surface mount technology) loading and then is processed by DIP (dual in-line package technology) plug-in manufacturing process. PCBA boards have been widely used before the industrial age, which is the core of computers and embedded systems. The PCBA is produced in the latter half of the production of electronic devices, and is therefore a downstream industry of the electronics industry. Almost all electronic devices require printed circuit board support, and therefore printed circuit boards are the highest market share of electronic component products worldwide. Japan, china, western europe, and the united states are currently the major bases for printed circuit board manufacturing. Due to the fact that electronic products are changing day by day, price war changes the structure of a supply chain, china has industrial distribution, cost and market advantages, and the electronic products become the most important PCBA production base in the world. During the production of PCBA, some artificial or uncertain factors can lead to some faulty PCBA. In order to control and improve the qualification rate in production, the detection work for controlling the quality stability is particularly important;

traditional PCBA test fixture can be earlier with the fixed PCBA board of anchor clamps, and fixed fixture causes the damage to the electric element on PCBA board surface easily, causes economic loss, and a tool can only once detect a piece that awaits measuring, very influences efficiency of software testing.

Therefore, it is necessary to provide a high-efficiency PCBA test fixture to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an efficient PCBA test fixture to solve the above-mentioned weak point in the technique.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides an efficient PCBA test fixture, includes the testboard, the top front side of testboard is provided with the spout, spout bottom equidistance parallel arrangement has three air suction pipe, the internally mounted of testboard has suction fan and bottom to be provided with the opening, and is three air suction pipe link up to suction fan position department, slidable mounting has the locating plate in the spout, be provided with three constant head tank on the locating plate, it is three the bottom center of constant head tank is provided with the perforating hole, and is three the perforating hole is corresponding with three air suction pipe position respectively, and is three PCBA board has all been placed in the constant head tank, the top rear side of testboard is provided with detection mechanism.

Preferably, the detection mechanism is including two electric telescopic handle, two electric telescopic handle parallel mount is in the inside rear side of testboard, two the lifter plate is installed at electric telescopic handle's output shaft top, the detection case is installed at the top of lifter plate, three test probe, three are installed to the bottom of lifter plate test probe is located three constant head tank respectively directly over.

Preferably, the lifting plate is connected with the output shafts of the two electric telescopic rods through four fixing bolts, and the detection box is electrically connected with the three detection probes.

Preferably, the dust screen is installed to the testboard opening part of induced draft fan bottom, and is three the top opening part of induced draft pipeline is horn-shaped structure.

Preferably, the inner walls of the two ends of the front side of the sliding groove are provided with arc-shaped convex blocks, and the positions of the two sides of the positioning plate corresponding to the front ends are provided with arc-shaped notches.

Preferably, arc breach one end is kept away from to locating plate both sides all is provided with the holding tank, the opening width of holding tank is less than interior bottom surface width, two all install compression spring and locating piece in the holding tank, the locating piece is close to compression spring one end and is provided with the restriction piece, restriction piece width is greater than the opening width of holding tank, spout both sides inner wall corresponds position department and all is provided with the fixed slot with the locating piece adaptation.

Preferably, the both sides inner wall of fixed slot is provided with the slide rail groove, install the push pedal in the fixed slot, the both ends of push pedal are located the slide rail inslot, the push pedal is kept away from slide rail groove opening part one end and is provided with and presses the axle, it runs through to the testboard outside to press the axle to keep away from opening part one end from the slide rail groove.

Preferably, the positioning block is of a wedge structure.

In the technical scheme, the utility model provides a technological effect and advantage:

1. through the matching of the test board and the positioning board, the PCBA board can be fixed without a clamp, and the fixed clamp is prevented from damaging electric elements on the surface of the PCBA board; firstly, placing a PCBA plate in a positioning groove, then pushing a positioning plate into a chute of a test board, wherein the through hole is communicated with an air suction pipeline, and then starting a suction fan to fix the back surface of the PCBA plate with the bottom surface of the positioning groove through suction force, so that subsequent detection is facilitated;

2. through three test probe and three constant head tank of detection mechanism, can realize the synchronous detection of three PCBA board in step, improve efficiency of software testing.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a perspective view of the overall structure of the present invention.

Figure 2 is the utility model discloses a testboard and detection mechanism structure stereogram.

Fig. 3 is a perspective view of the positioning plate structure of the present invention.

Figure 4 is the utility model discloses a testboard and detection mechanism structure cross-sectional view.

Figure 5 is the utility model discloses an inside section view of holding tank and constant head tank.

Description of reference numerals:

1. a test bench; 2. positioning a plate; 3. PCBA board; 4. a detection mechanism; 5. a suction fan; 6. a dust screen; 11. a chute; 12. an air suction pipeline; 13. fixing grooves; 14. an arc-shaped bump; 15. pressing the shaft; 16. pushing the plate; 131. a slide rail groove; 21. positioning a groove; 22. a through hole; 23. accommodating grooves; 24. positioning blocks; 25. a compression spring; 26. a limiting block; 41. an electric telescopic rod; 42. a lifting plate; 43. a detection box; 44. and (6) detecting the probe.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

The utility model provides a high-efficiency PCBA test fixture as shown in figures 1-5, which comprises a test board 1, wherein a chute 11 is arranged at the front side of the top of the test board 1, three air suction pipes 12 are arranged in parallel at equal intervals at the bottom of the chute 11, an air suction fan 5 is arranged in the test board 1, an opening is arranged at the bottom of the test board 1, the three air suction pipes 12 are communicated with the position of the air suction fan 5, a positioning plate 2 is arranged in the chute 11 in a sliding manner, three positioning grooves 21 are arranged on the positioning plate 2, a through hole 22 is arranged at the center of the bottom of each positioning groove 21, the three through holes 22 correspond to the positions of the three air suction pipes 12 respectively, PCBA boards 3 are arranged in the three positioning grooves 21, and a detection mechanism 4 is arranged at the rear side of the top of the test board 1; through the cooperation of testboard 1 and locating plate 2 to need not anchor clamps and can fix PCBA board 3, prevent that fixed clamp from causing the damage to the electric element on PCBA board 3 surface, can realize the synchronous detection of three PCBA board 3 in step through detection mechanism 4, improve efficiency of software testing.

Further, in the above technical solution, the detection mechanism 4 includes two electric telescopic rods 41, the two electric telescopic rods 41 are installed in parallel at the rear side inside the test board 1, a lifting plate 42 is installed at the top of the output shaft of the two electric telescopic rods 41, a detection box 43 is installed at the top of the lifting plate 42, three detection probes 44 are installed at the bottom of the lifting plate 42, and the three detection probes 44 are respectively located right above the three positioning grooves 21;

specifically, through electric telescopic handle 41's flexible to drive the upgrading of lifter plate 42, and then make three measuring probe 44 descend in step, when contacting with PCBA board 3, electric telescopic handle 41 stop the function, and the cooperation detection case 43 realizes detecting, and detection case 43 joinable data computer realizes more comprehensive detection.

Further, in the above technical solution, the lifting plate 42 is connected with the output shafts of the two electric telescopic rods 41 through four fixing bolts, and the detection box 43 is electrically connected with the three detection probes 44;

in particular, so that the lifting plate 42 can be removed to facilitate better maintenance when the inspection box 43 or the inspection probe 44 fails.

Further, in the above technical scheme, a dust screen 6 is installed at the opening of the test board 1 at the bottom of the suction fan 5, and the openings at the tops of the three suction pipes 12 are all horn-shaped structures;

in particular, the suction force at the opening is increased, so that the PCBA 3 is better fixed with the inner wall of the bottom of the positioning groove 21.

Further, in the above technical solution, the inner walls of the two ends of the front side of the chute 11 are provided with arc-shaped protrusions 14, and the front ends of the two sides of the positioning plate 2 are provided with arc-shaped notches at corresponding positions;

specifically, after the positioning plate 2 is inserted into the sliding groove 11, the positioning plate 2 can be kept stable through the butt joint of the arc-shaped convex block 14 and the arc-shaped notch.

Further, in the above technical solution, both ends of the positioning plate 2, which are far away from the arc-shaped notch, are provided with accommodating grooves 23, the opening width of the accommodating grooves 23 is smaller than the width of the inner bottom surface, both accommodating grooves 23 are internally provided with compression springs 25 and positioning blocks 24, one ends of the positioning blocks 24, which are close to the compression springs 25, are provided with limiting blocks 26, the width of the limiting blocks 26 is larger than the opening width of the accommodating grooves 23, and the corresponding positions of the inner walls of both sides of the sliding chute 11 are provided with fixing grooves 13 which are matched with the positioning blocks 24;

specifically, after the positioning plate 2 is inserted into the sliding groove 11, the positioning block 24 will be sprung into the fixing groove 13 by the acting force of the compression spring 25, so as to complete the fixing of the positioning plate 2 and the test board 1.

Further, in the above technical solution, the inner walls of the two sides of the fixing groove 13 are provided with the slide rail grooves 131, the push plate 16 is installed in the fixing groove 13, two ends of the push plate 16 are located in the slide rail grooves 131, one end of the push plate 16 away from the opening of the slide rail grooves 131 is provided with the pressing shaft 15, and the pressing shaft 15 penetrates from one end of the slide rail groove 131 away from the opening to the outside of the test board 1;

specifically, when the positioning plate 2 needs to be detached, the pressing shaft 15 is pushed to enable the pushing plate 16 to contact with the positioning block 24, so that the positioning block 24 is pushed out of the fixing groove 13 and then slides out of the positioning plate 2.

Further, in the above technical solution, the positioning block 24 is a wedge structure;

specifically, the positioning block 24 is a wedge structure inclined from one end of the front side of the positioning plate 2 to one end of the rear side of the positioning plate, so that when the positioning plate 2 is inserted into the sliding groove 11, the positioning block 24 does not need to be pressed in advance to be retracted, and convenience is improved.

This practical theory of operation:

firstly, a PCBA (printed Circuit Board Assembly) plate 3 is placed in a positioning groove 21, then a positioning plate 2 is pushed into a sliding groove 11 of a test board 1, at the moment, a positioning block 24 can be bounced into a fixing groove 13 through the acting force of a compression spring 25, so that the fixing of the positioning plate 2 and the test board 1 is completed, a through hole 22 is communicated with an air suction pipeline 12 after the fixing, then a suction fan 5 is started, the back surface of the PCBA plate 3 is fixed with the bottom surface of the positioning groove 21 through suction force, then an electric telescopic rod 41 stretches out and draws back, so that a lifting plate 42 is driven to be upgraded, three detection probes 44 descend synchronously, when the PCBA plate 3 is contacted, the electric telescopic rod 41 stops operating, the detection is realized by matching with a detection box 43, and the detection box 43 can be connected with a data computer, so that more comprehensive detection is realized; and during the detection, can install three PCBA boards 3 on another locating plate 2, after the batch detects and accomplishes, take out locating plate 2, can insert the detection with another locating plate 2, increase detection efficiency.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. The utility model provides a high-efficient PCBA test fixture, includes testboard (1), its characterized in that: the utility model discloses a test bench, including testboard (1), top front side of testboard (1) is provided with spout (11), spout (11) bottom equidistance parallel arrangement has three air suction pipeline (12), the internally mounted of testboard (1) has suction fan (5) and bottom to be provided with the opening, and is three air suction pipeline (12) link up to suction fan (5) position department, slidable mounting has locating plate (2) in spout (11), be provided with three constant head tank (21) on locating plate (2), it is three the bottom center of constant head tank (21) is provided with perforating hole (22), and is three perforating hole (22) are corresponding with three air suction pipeline (12) position respectively, and are three PCBA board (3) have all been placed in constant head tank (21), the top rear side of testboard (1) is provided with detection mechanism (4).

2. The high-efficiency PCBA test fixture according to claim 1, wherein: detection mechanism (4) are including two electric telescopic handle (41), two electric telescopic handle (41) parallel mount is in the inside rear side of testboard (1), two lifter plate (42) are installed at the output shaft top of electric telescopic handle (41), detection case (43) are installed at the top of lifter plate (42), three test probe (44), three are installed to the bottom of lifter plate (42) test probe (44) are located three constant head tank (21) directly over respectively.

3. The high-efficiency PCBA test fixture according to claim 2, wherein: the lifting plate (42) is connected with output shafts of the two electric telescopic rods (41) through four fixing bolts, and the detection box (43) is electrically connected with the three detection probes (44).

4. The high-efficiency PCBA test fixture according to claim 1, wherein: the dust screen (6) is installed at the opening of the test bench (1) at the bottom of the suction fan (5), and the opening at the top of the suction pipeline (12) is of a horn-shaped structure.

5. The high-efficiency PCBA test fixture according to claim 1, wherein: the inner walls of the two ends of the front side of the sliding groove (11) are provided with arc-shaped convex blocks (14), and arc-shaped notches are formed in the positions, corresponding to the front ends of the two sides of the positioning plate (2).

6. The PCBA test fixture with high efficiency as recited in claim 5, wherein: locating plate (2) both sides are kept away from arc breach one end and are all provided with holding tank (23), the opening width of holding tank (23) is less than interior bottom surface width, two all install compression spring (25) and locating piece (24) in holding tank (23), locating piece (24) are close to compression spring (25) one end and are provided with restriction piece (26), restriction piece (26) width is greater than the opening width of holding tank (23), spout (11) both sides inner wall corresponds position department and all is provided with fixed slot (13) with locating piece (24) adaptation.

7. The efficient PCBA test fixture as in claim 6, wherein: the inner wall of the two sides of the fixing groove (13) is provided with a slide rail groove (131), a push plate (16) is installed in the fixing groove (13), the two ends of the push plate (16) are located in the slide rail groove (131), one end, far away from the opening of the slide rail groove (131), of the push plate (16) is provided with a pressing shaft (15), and the pressing shaft (15) penetrates through the test board (1) from one end, far away from the opening of the slide rail groove (131), of the pressing shaft.

8. The efficient PCBA test fixture as in claim 6, wherein: the positioning block (24) is of a wedge structure.