PCB detection clamp

By designing a PCB board detection fixture equipped with a fan and a pipeline system, the problem of dust impurities on the PCB board and test terminals affecting the detection results is solved, and a more efficient and accurate detection process is achieved.

CN223038010UActive Publication Date: 2025-06-27GUANGDONG JIEHUA PRECISION ELECTRONIC TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520618603.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2025-06-27
Estimated Expiration
2035-04-03

AI Technical Summary

Technical Problem

During the PCB board detection process, dust and impurities are easily left on the PCB board and the test terminal, resulting in an increase in contact resistance or poor bonding, affecting the accuracy of the detection results.

Method used

Design a PCB board inspection fixture equipped with a fan and a pipeline system to remove dust from the PCB board and test terminals. The fixture also includes a removable suction nozzle and collection sleeve, which can adjust the cleaning effect according to the PCB board to be tested, and regularly clean the dust to prevent clogging.

Benefits of technology

By removing dust, the impact on the detection results is reduced, the accuracy of PCB board detection is improved, and a more efficient detection process is achieved by saving energy and improving dust cleaning efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of PCB (Printed Circuit Board) test fixtures, in particular to a PCB detection fixture, which comprises a fixture table for clamping and fixing a PCB; the test terminal is connected to the clamp table in a sliding manner; the supporting frame is fixedly connected to the clamp table; the mounting plate is connected to the support frame in a sliding manner; the electric sliding rail is fixedly connected to the supporting frame; the butt-joint frame is fixedly connected to the mounting plate, and a first frame opening is formed in the butt-joint frame; the suction nozzle is arranged on the butt joint frame, a second frame opening is formed in the suction nozzle, and the first frame opening is aligned with the second frame opening; the collecting pipe is fixedly connected to the top of the supporting frame; the first telescopic pipes are fixedly connected between the collecting pipe and the first frame openings; the fan is fixedly connected to the clamp table; and the connecting pipe is fixedly connected to the fan. According to the utility model, the fan and a series of pipelines are used for deashing the PCB and the test terminal, so that a deashing function is added, the influence of dust on a detection result is reduced, and the detection accuracy of the PCB is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of PCB test fixtures, in particular to a PCB board detection fixture. Background Art

[0002] The PCB board needs to be subjected to electrical performance detection, which is achieved by identifying defects such as short circuits, open circuits, and abnormal impedance in the PCB board circuit. In the manufacturing field, the detection link is a key process for ensuring the quality of the PCB board. Currently, when detecting the PCB board, dust and impurities are likely to remain on the PCB board and the test terminals on the detection equipment. These impurities will cause an increase in the contact resistance between the PCB board and the test terminals or poor bonding, directly affecting the accuracy of the detection results. Therefore, there is an urgent need to design a PCB board detection fixture that can handle the dust and impurities on the PCB board and the test terminals. Summary of the Utility Model

[0003] The utility model provides a PCB board detection fixture that can handle the dust and impurities on the PCB board and the test terminals, aiming to improve the accuracy of the detection results of the PCB and solve the existing technical defects proposed in the above background art.

[0004] The technical implementation solution of the utility model is as follows: A PCB board detection fixture, comprising: a fixture table for clamping and fixing the PCB board; test terminals slidably connected to the fixture table, and the fixture table controls the movement of the test terminals; further comprising: a support frame fixedly connected to the fixture table; a mounting plate slidably connected to the support frame; an electric slide rail fixedly connected to the support frame, and the electric slide rail is connected to the mounting plate; a docking frame fixedly connected to the mounting plate, and a first frame opening is provided on the docking frame; a suction nozzle provided on the docking frame, the bottom sides of the suction nozzle are open, a second frame opening is provided on the suction nozzle, the first frame opening is aligned with the second frame opening, and at least two groups of combinations of the docking frame and the suction nozzle are provided; a collecting pipe fixedly connected to the top of the support frame; a first telescopic pipe fixedly connected between the collecting pipe and each first frame opening; a blower fixedly connected to the fixture table; a connecting pipe fixedly connected to the blower, and the connecting pipe is connected to the collecting pipe.

[0005] As a further preferred solution, the suction nozzle is slidably connected to the support frame, and further comprising: a magnetic block fixedly connected to the inside of the docking frame, and the suction nozzle is magnetically connected to the magnetic block.

[0006] As a further preferred solution, further comprising: a baffle slidably connected to the docking frame, the baffle blocks the first frame opening, and a convex portion is provided on the baffle, and the suction nozzle can contact the convex portion.

[0007] As a further preferred solution, it further includes: a second telescopic pipe fixedly connected to the end of the collecting pipe; a collecting sleeve arranged between the second telescopic pipe and the connecting pipe, the collecting sleeve is rotatably connected to the connecting pipe and threadedly connected to the second telescopic pipe; a delivery frame fixedly connected to the inside of the collecting sleeve in a snap-fit manner; a handle fixedly connected to the delivery frame; a stopper fixedly connected to one side of the delivery frame; a wedge block slidably connected to the other side of the delivery frame; a spring fixedly connected between the delivery frame and the wedge block; a filter screen arranged on the delivery frame, and the filter screen is fixed on the delivery frame by the wedge block and the spring.

[0008] As a further preferred solution, it further includes: a collecting frame fixedly connected to the support frame, and the collecting frame is arranged at the bottom of the collecting sleeve.

[0009] As a further preferred solution, it further includes: a viewing window fixedly connected to the collecting sleeve.

[0010] The utility model has the following advantages: The utility model uses a blower and a series of pipelines to clean the dust on the PCB board and the test terminals, increasing the dust cleaning function, reducing the influence of dust on the test results, and improving the detection accuracy of the PCB board; By setting a detachable suction nozzle, the utility model can be adjusted according to the PCB board to be tested, enabling the blower to act centrally, reducing waste and saving energy, and improving the dust cleaning efficiency; By setting a detachable collecting sleeve and a detachable filter screen, regular dust cleaning is realized to prevent the pipeline from being blocked by dust and affecting the adsorption effect of the blower. Description of the Drawings

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] Figure 2 It is a schematic diagram of the installation structure of the docking frame, suction nozzle, collecting pipe and blower of the utility model.

[0013] Figure 3 It is a sectional view of the connection structure of the docking frame, suction nozzle and collecting sleeve of the utility model.

[0014] Figure 4 It is a separated view of the connection structure of the docking frame, suction nozzle, baffle and magnet of the utility model.

[0015] Figure 5 It is a separated view of the connection structure of the collecting sleeve, delivery frame and filter screen of the utility model.

[0016] Names of the reference numerals in the figure: 0 - PCB board, 1 - fixture table, 2 - test terminal, 3 - support frame, 4 - mounting plate, 5 - electric slide rail, 6 - docking frame, 601 - first frame opening, 7 - suction nozzle, 701 - second frame opening, 8 - collecting pipe, 9 - first telescopic pipe, 10 - fan, 11 - connecting pipe, 12 - collecting sleeve, 13 - second telescopic pipe, 14 - filter screen, 15 - baffle plate, 16 - magnetic block, 17 - delivery frame, 18 - handle, 19 - abutting block, 20 - wedge block, 21 - spring, 22 - collecting frame, 23 - viewing window, 24 - convex stripe. Detailed implementation mode

[0017] The following further illustrates the technical solution in combination with specific embodiments. It should be noted that: The words indicating directions such as up, down, left, and right mentioned in this article are only in terms of the position of the shown structure in the corresponding drawings. The serial numbers assigned to the components in this article itself, for example: first, second, etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. And as used in this application: connection, coupling, unless otherwise specified, both include direct and indirect connection (coupling).

[0018] Embodiment: A PCB board detection fixture, as Figures 1 - 3 shown, includes: a fixture table 1 that clamps and fixes the PCB board 0; a test terminal 2 slidably mounted on the fixture table 1, and the fixture table 1 controls the test terminal 2 to move back and forth to control its docking with the PCB board 0 and detect the PCB board 0, and the test terminal 2 is replaced according to the actual interface of the PCB board 0 to be tested; a support frame 3 fixedly mounted at the rear of the fixture table 1; a mounting plate 4 slidably mounted on the support frame 3; electric slide rails 5 fixedly mounted on the left and right sides of the support frame 3, and the control end of the electric slide rail 5 is fixed to the mounting plate 4 to control the mounting plate 4 to move up and down; a docking frame 6 fixedly mounted at the lower part of the mounting plate 4, and a first frame opening 601 is provided on the docking frame 6; a suction nozzle 7 slidably mounted on the docking frame 6, the bottom of the suction nozzle 7 is open at the front and rear sides, and a second frame opening 701 is provided on the suction nozzle 7, and the first frame opening 601 is aligned with the second frame opening 701, and a total of four groups of combinations of the docking frame 6 and the suction nozzle 7 are provided; a collecting pipe 8 fixedly mounted at the top of the support frame 3; a first telescopic pipe 9 fixedly mounted between the collecting pipe 8 and each first frame opening 601, and the first telescopic pipe 9 automatically expands and contracts following the up and down movement of the docking frame 6; a fan 10 fixedly mounted on the fixture table 1; a connecting pipe 11 fixedly mounted on the fan 10, and the end of the connecting pipe 11 is fixedly mounted on the support frame 3; a second telescopic pipe 13 fixedly mounted at the right end of the collecting pipe 8; a collecting sleeve 12 provided between the second telescopic pipe 13 and the connecting pipe 11, and the collecting sleeve 12 is rotatably mounted with the connecting pipe 11 and threadedly mounted with the second telescopic pipe 13.

[0019] After fixing the PCB board 0 to the fixture table 1, replace the test terminal 2 according to the interface of the PCB board 0. After completion, control the mounting plate 4 to move downward, move the suction nozzle 7 between the PCB board 0 and the test terminal 2, start the blower 10 to suck air flow, and the whole pipeline passing through the connecting pipe 11, the collecting sleeve 12, the second telescopic pipe 13, the collecting pipe 8 and the first telescopic pipe 9 in sequence can, under the bidirectional guidance of the suction nozzle 7, act on the interface of the PCB board 0 and the test terminal 2 respectively, so as to realize the function of dust cleaning; after the dust cleaning is completed, control the docking pipe and the suction nozzle 7 to move upward, and then the test terminal 2 can be controlled to be docked with the interface of the PCB board 0 for detection.

[0020] As Figures 3 - 4 shown, it further includes: a baffle 15 slidably mounted on the docking frame 6, the baffle 15 blocks the first frame opening 601, a convex part is provided on the baffle 15, and the suction nozzle 7 contacts the convex part; a magnet 16 fixedly mounted inside the docking frame 6, and the suction nozzle 7 is magnetically connected to the magnet 16.

[0021] After fixing the PCB board 0 to the fixture table 1, while replacing the test terminal 2, the number of suction nozzles 7 can also be increased or decreased according to the situation of the interface of the PCB board 0; when it is necessary to reduce the suction nozzles 7, control the suction nozzle 7 to move downward to overcome the adsorption force of the magnet 16, and at the same time the baffle 15 can move downward under its own gravity to block at the first frame opening 601 and cut off the connection of the first telescopic pipe 9. In this way, when the subsequent dust cleaning work is carried out, there is no situation where the suction nozzle 7 runs idly, the blower 10 can act intensively, reducing waste and saving energy, and improving the dust cleaning efficiency; on the contrary, when it is necessary to install the suction nozzle 7, install the suction nozzle 7 into the docking frame 6 to make it magnetically fixed to the magnet 16. During the process, the suction nozzle 7 contacts the convex part of the baffle 15, and control the baffle 15 to move upward to open the first frame opening 601.

[0022] As Figure 3 and Figure 5 shown, it further includes: a delivery frame 17 fixedly installed inside the right side of the collecting sleeve 12 in a snap-fit manner, the delivery frame 17 can be disassembled from the collecting sleeve 12; a handle 18 fixedly installed on the left part of the delivery frame 17, the length of the handle 18 can reach the left end of the collecting sleeve 12; a blocking block 19 fixedly installed on the right part of the delivery frame 17; a wedge-shaped block 20 slidably installed on the left part of the delivery frame 17; a spring 21 fixedly installed between the delivery frame 17 and the wedge-shaped block 20; a filter screen 14 arranged on the delivery frame 17, the filter screen 14 is fixed on the delivery frame 17 by the wedge-shaped block 20 and the spring 21, the filter screen 14 blocks the right side inside the collecting sleeve 12 to filter the air flow flowing through the collecting sleeve 12; a collecting frame 22 fixedly installed on the support frame 3, the collecting frame 22 is arranged at the bottom of the collecting sleeve 12; a viewing window 23 fixedly installed on the collecting sleeve 12; a convex pattern 24 fixedly installed on the collecting sleeve 12.

[0023] When the fan 10 sucks in the air flow, the dust moves along with the air flow in the entire pipeline until it is blocked by the filter screen 14, and the dust will be collected in the collecting sleeve 12; when a certain amount of dust has accumulated, the dust will affect the flow path size of the plug pipeline and the dust cleaning efficiency of the fan 10. At this time, it is necessary to clean the dust: First, rotate the collecting sleeve 12, the second telescopic pipe 13 contracts, and the connection between the two is released. Secondly, use the handle 18 to take out the filter screen 14 from the collecting sleeve 12, and the dust is taken out by the filter screen 14 at the same time and falls on the collecting frame 22. Finally, take the filter screen 14 off the delivery frame 17 and clean the remaining dust on the filter screen 14; after the cleaning is completed, fix the filter screen 14 back on the delivery frame 17, and re-connect the delivery frame 17 to the inside of the collecting sleeve 12 in a snap-fit manner, and then reconnect the collecting sleeve 12 to the first telescopic pipe 9.

[0024] Use the viewing window 23 to observe the dust density in order to sense the amount of dust collected in the collecting sleeve 12, so as to be able to process the collected dust in a timely manner; the convex stripes 24 increase the friction of the collecting sleeve 12, enabling the collecting sleeve 12 to be better disassembled.

[0025] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A PCB board detection fixture, comprising: A fixture table (1), the fixture table (1) clamps and fixes a PCB board (0); a test terminal (2) slidably connected to the fixture table (1) for detecting the PCB board (0), the fixture table (1) controlling the movement of the test terminal (2); the PCB board detection fixture further comprises: a support frame (3) fixedly connected to the fixture table (1); a mounting plate (4) slidably connected to the support frame (3); an electric slide rail (5) fixedly connected to the support frame (3), the electric slide rail (5) being connected to the mounting plate (4) to control its movement; and a docking frame (6) fixedly connected to the mounting plate (4), the docking frame (6) being provided with a first frame opening (601); a suction nozzle (7) arranged on the docking frame (6), the bottom of the suction nozzle (7) being open on both sides, a second frame opening (701) being arranged on the suction nozzle (7), the first frame opening (601) being aligned with the second frame opening (701), and at least two groups of the combination of the docking frame (6) and the suction nozzle (7) being arranged; a collecting pipe (8) fixedly connected to the top of the support frame (3); a first telescopic pipe (9) fixedly connected between the collecting pipe (8) and each first frame opening (601); a fan (10) fixedly connected to the fixture table (1); a connecting pipe (11) fixedly connected to the fan (10), the connecting pipe (11) being connected to the collecting pipe (8).

2. A PCB board detection fixture according to claim 1, characterized in that: The suction nozzle (7) is slidably connected to the support frame (3), and further comprises: a magnetic block (16) fixedly connected to the inside of the docking frame (6), and the suction nozzle (7) is magnetically connected to the magnetic block (16).

3. A PCB board detection fixture according to claim 1, characterized in that: The PCB board detection fixture further comprises: a baffle (15) slidably connected to the docking frame (6), the baffle (15) blocking the first frame opening (601), and a convex portion being provided on the baffle (15), and the suction nozzle (7) being able to contact the convex portion.

4. A PCB board detection fixture according to claim 1, characterized in that: The PCB board inspection fixture further comprises: a second telescopic tube (13) fixedly connected to the end of the collecting tube (8); a collecting sleeve (12) arranged between the second telescopic tube (13) and the connecting tube (11), the collecting sleeve (12) being rotatably connected to the connecting tube (11) and being threadedly connected to the second telescopic tube (13); a delivery frame (17) fixedly connected to the inside of the collecting sleeve (12) in a snap-fitting manner; a handle (18) fixedly connected to the delivery frame (17); a stopper (19) fixedly connected to one side of the delivery frame (17); a wedge-shaped block (20) slidably connected to the other side of the delivery frame (17); a spring (21) fixedly connected between the delivery frame (17) and the wedge-shaped block (20); and a filter screen (14) arranged on the delivery frame (17), the filter screen (14) being fixed to the delivery frame (17) by the wedge-shaped block (20) and the spring (21), the filter screen (14) filtering the airflow passing through the collecting sleeve (12).

5. A PCB board detection fixture according to claim 1, characterized in that: The PCB board detection fixture further comprises: a collection frame (22) fixedly connected to the support frame (3), the collection frame (22) being arranged at the bottom of the collection sleeve (12).

6. A PCB board detection fixture according to claim 1, characterized in that: The PCB board detection fixture further comprises: a viewing window (23) fixedly connected to the collecting sleeve (12).