CN213581058U

CN213581058U - Quick test fixture of PCB board

Info

Publication number: CN213581058U
Application number: CN202022533057.1U
Authority: CN
Inventors: 秦涛; 沈祖勇; 王向荣; 冯玉林
Original assignee: Norsat International Inc
Current assignee: Norsat International Inc
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-06-29
Anticipated expiration: 2030-11-05

Abstract

The utility model discloses a PCB quick test fixture, which comprises a workbench, a needle plate, a test plate, a fixed plate, a quick clamp, a lower press plate and a PCB power supply terminal; the needle plate is arranged above the workbench, a plurality of test needles and a plurality of guide pillars are fixedly arranged on the upper surface of the needle plate in a penetrating manner, and the plurality of test needles correspond to test points of the PCB; the test plate is sleeved on the guide pillars and arranged above the needle plate, and a test slot is formed in the test plate; the fixing plate is fixed on the workbench and is positioned on one side of the needle plate; the quick clamp is fixed on the fixing plate and arranged above the test plate; the lower pressing plate is fixed at the tail end of the quick clamp; the PCB power supply terminal is fixed on the lower surface of the lower pressing plate. The PCB can be placed in the test slots quickly and aligned, and can be electrified to perform quick test after being pressed, so that the quick test of the PCB can be realized, the test efficiency is improved, and the test cost is reduced.

Description

Quick test fixture of PCB board

Technical Field

The utility model relates to a PCB board test technical field, more specifically say, relate to a quick test fixture of PCB board.

Background

An electronic circuit board (PCB) is an essential component in modern electronic devices. The performance parameters of the PCB board are critical as it relates to electronic devices, whether large machines or personal computers, communication base stations, mobile phones, home appliances or other electronic devices. In order to make the PCB be well applied to the electronic device, before the PCB is put into use, the performance of the PCB needs to be tested, and it is necessary to design a fast PCB testing fixture.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a PCB board tests anchor clamps fast is provided, place the PCB board in test groove, press down the quick clamp, quick smuggle moves holding down plate and PCB power supply terminal and continue down, so that the contact of PCB power supply terminal and PCB board switches on, and it continues down along the guide pillar to drive survey test panel, test point and test needle on the PCB board switch on, intercommunication power can test the PCB board this moment, owing to be provided with test groove, the PCB board can be placed fast in test groove and aim at, can switch on after pressing down and carry out the quick test, it can realize the quick test of PCB board, and the efficiency of software testing is improved, and the test cost is reduced.

The utility model discloses the technical problem that will solve realizes through following technical scheme:

in order to solve the technical problem, the utility model provides a PCB quick test fixture, which comprises a workbench, a needle plate, a test plate, a fixed plate, a quick clamp, a lower pressure plate and a PCB power supply terminal; the needle plate is arranged above the workbench, a plurality of test needles and a plurality of guide pillars are fixedly arranged on the upper surface of the needle plate in a penetrating manner, and the plurality of test needles correspond to test points of the PCB; the test plate is sleeved on the guide pillars and arranged above the needle plate, and a test slot is formed in the test plate; the fixing plate is fixed on the workbench and is positioned on one side of the needle plate; the quick clamp is fixed on the fixing plate and arranged above the test plate; the lower pressing plate is fixed at the tail end of the quick clamp; the PCB power supply terminal is fixed on the lower surface of the lower pressing plate.

Furthermore, a plurality of positioning pins are arranged on the needle plate, and positioning holes corresponding to the positioning pins are arranged on the test plate.

Furthermore, the lower surface of the lower pressing plate is provided with a plurality of pressing rods, and the test groove is provided with a bearing part corresponding to the pressing rods.

Further, a distribution box is arranged below the workbench.

Furthermore, a power supply electrically connected with the PCB power supply terminal and the test pin is arranged in the distribution box.

Furthermore, a radio frequency testing device is arranged on one side of the testing board on the upper surface of the workbench.

Furthermore, the radio frequency testing device comprises a sliding rail fixed on the upper surface of the workbench and a sliding block arranged above the sliding rail in a sliding manner, and a radio frequency testing terminal is fixed on the sliding block.

Furthermore, an inclined sliding groove is fixed on the sliding block, a fixed block is fixed on the lower pressing plate, and a bearing corresponding to the inclined sliding groove is fixed on the fixed block.

Furthermore, an avoiding groove for avoiding the radio frequency testing device is formed in the lower pressing plate.

Furthermore, a telescopic elastic needle is fixed on the needle plate.

The utility model discloses following beneficial effect has:

place the PCB board in the test groove, push down the quick clamp, quick smuggle is secretly moved holding down plate and PCB power supply terminal and is continued down, so that the contact of PCB power supply terminal and PCB board switches on, and it is descending along the guide pillar to drive survey test panel and continue, test point and test pin on the PCB board switch on, intercommunication power can test the PCB board this moment, owing to be provided with the test groove, the PCB board can be placed fast in surveying the inslot and aim at, can switch on after pressing and carry out the high-speed test, it can realize the high-speed test of PCB board, and the test efficiency is improved, and the test cost is reduced.

The needle plate is provided with a plurality of positioning pins, the test board is provided with positioning holes corresponding to the positioning pins, and when the test board goes down, the positioning holes can be quickly positioned and aligned under the guidance of the positioning pins, so that the test points of the PCB can be aligned with the test needles.

Drawings

Fig. 1 is the utility model provides a pair of quick test fixture of PCB board's structural schematic.

Fig. 2 is a partially exploded view of fig. 1.

Fig. 3 is a schematic view of the structure of the needle board.

Fig. 4 is a schematic structural view of the fixing plate and the PCB.

Fig. 5 is a schematic structural view of another PCB board rapid testing fixture provided by the present invention.

Fig. 6 is a partially exploded view of fig. 5.

Detailed Description

The present invention will be described in detail with reference to the following examples, which are only preferred embodiments of the present invention and are not intended to limit the present invention.

Referring to fig. 1 to 4, a PCB board rapid test fixture provided by the present invention includes a worktable 1, a needle plate 2, a test board 3, a fixing board 4, a rapid clamp 5, a pressing board 6 and a PCB power supply terminal 7; the needle plate 2 is arranged above the workbench 1, a plurality of test needles 21 and a plurality of guide pillars 22 are fixedly arranged on the upper surface of the needle plate 2 in a penetrating manner, and the plurality of test needles 21 correspond to test points of the PCB 100 and are used for testing the PCB 100; the test board 3 is sleeved on the guide pillars 22 and arranged above the needle plate 2, a test slot 31 is formed in the test board 3, the PCB 100 is placed in the test slot 31 of the test board 3 during testing, and the shape and structure of the test slot 31 correspond to the shape and structure of the PCB 100 to be tested; the fixing plate 4 is fixed on the workbench 1 and is positioned on one side of the needle plate 2; the quick clamp 5 is fixed on the fixing plate 4 and is arranged above the test plate 3; the lower pressing plate 6 is fixed at the tail end of the quick clamp 5; the PCB power supply terminal 7 is fixed to the lower surface of the lower pressing plate 6, in this embodiment, a terminal block is fixed below the lower pressing plate 6, and the PCB power supply terminal 7 is fixed to the lower surface of the terminal block. Firstly, place PCB board 100 in test groove 31, press down quick clamp 5, quick clamp 5 drives holding down plate 6 and PCB power supply terminal 7 and continues descending, so that PCB power supply terminal 7 and PCB board 100's contact and switch on, and drive survey test panel 3 and continue to descend along guide pillar 22, test point and test pin 21 on PCB board 100 switch on, the intercommunication power can test PCB board 100 this moment, owing to be provided with test groove 31, PCB board 100 can place in test groove 31 fast and aim at, can switch on after pressing and carry out the rapid test, it can realize the rapid test of PCB board 100, and the efficiency of the test is improved, and the test cost is reduced.

Furthermore, the pin plate 2 is provided with a plurality of positioning pins 23, the test board 3 is provided with positioning holes corresponding to the plurality of positioning pins 23, and when the test board 3 descends, the positioning holes can be quickly positioned and aligned under the guidance of the positioning pins 23, so that the test points of the PCB 100 can be aligned with the test pins 21.

Further, a retractable pogo pin 24 is fixed to the pin plate 2 so that the test board 3 can be reset after being pressed down.

Further, the lower surface of the lower pressing plate 6 is provided with a plurality of pressing rods 8, and the test slot 31 is provided with a bearing part 32 corresponding to the pressing rods 8. When the lower pressing plate 6 is pressed downwards, the pressing rod 8 applies pressure to the bearing part 32 on the test slot 31, so that the PCB power supply terminal 7 is prevented from being damaged due to overlarge stress.

Further, a distribution box is arranged below the workbench 1, and a power supply electrically connected with the PCB power supply terminal 7 and the test pins 21 is arranged in the distribution box to provide necessary power for testing.

Referring to fig. 1, 2, 5 and 6, for a product with a radio frequency transmitter, because the conventional PCB 100 cannot be well positioned and contacted, the radio frequency transmitter can be tested only after the PCB 100 is mounted in the whole machine, and the product is unpacked after the test is completed, which greatly increases the production cost. Further, a radio frequency testing device 9 is disposed on one side of the testing board 3 on the upper surface of the worktable 1. So that the test fixture can also directly test the rf transmitting device when testing the PCB 100.

Further, the radio frequency testing device 9 includes a slide rail 91 fixed on the upper surface of the workbench 1 and a slider 92 slidably disposed above the slide rail 91, a radio frequency testing terminal 93 is fixed on the slider 92, and the radio frequency testing terminal 93 is moved by sliding the slider 92, so as to implement a contact test between the radio frequency testing terminal 93 and the radio frequency testing device 9 during a test, and to implement a separation between the radio frequency testing terminal 93 and the radio frequency testing device 9 when the test is completed.

Further, an inclined sliding groove 94 is fixed on the sliding block 92, a fixed block 61 is fixed on the lower pressure plate 6, and a bearing 62 corresponding to the inclined sliding groove 94 is fixed on the fixed block 61. When the quick clamp 5 is pressed down, the lower pressing plate 6 drives the bearing 62 to move downwards, the bearing 62 is limited to move in the inclined sliding groove 94 when moving downwards, the inclined sliding groove 94 moves along the horizontal direction under the driving of the sliding block 92, and the radio frequency testing terminal 93 is enabled to be close to the radio frequency testing device 9, so that the contact testing of the radio frequency testing terminal 93 and the radio frequency testing device 9 is realized, and otherwise, the separation of the radio frequency testing terminal 93 and the radio frequency testing device 9 can be realized.

Further, an avoidance groove 63 for avoiding the radio frequency testing device 9 is formed in the lower pressing plate 6, so that interference between the radio frequency testing device 9 and the lower pressing plate 6 is avoided.

Furthermore, a telescopic elastic needle is fixed on the needle plate, so that the test plate can be reset after being pressed down.

The above embodiments only express the embodiments of the present invention, and the description thereof is specific and detailed, but the invention can not be understood as the limitation of the patent scope of the present invention, but all the technical solutions obtained by adopting the equivalent substitution or equivalent transformation should fall within the protection scope of the present invention.

Claims

1. The utility model provides a PCB board quick test fixture which characterized in that, it includes:

a work table;

the needle plate is arranged above the workbench, a plurality of test needles and a plurality of guide pillars are fixedly arranged on the upper surface of the needle plate in a penetrating manner, and the plurality of test needles correspond to test points of the PCB;

the test plate is sleeved on the guide pillars and arranged above the needle plate, and a test slot is formed in the test plate;

the fixing plate is fixed on the workbench and positioned on one side of the needle plate;

the quick clamp is fixed on the fixing plate and arranged above the test plate;

the lower pressing plate is fixed at the tail end of the quick clamp;

and the PCB power supply terminal is fixed on the lower surface of the lower pressing plate.

2. The fixture for rapidly testing the PCB according to claim 1, wherein the needle plate is provided with a plurality of positioning pins, and the testing plate is provided with positioning holes corresponding to the plurality of positioning pins.

3. The PCB board rapid test fixture of claim 1, wherein the lower surface of the lower pressure plate is provided with a plurality of pressing rods, and the test slot is provided with a bearing part corresponding to the pressing rods.

4. The PCB board rapid test fixture according to claim 1, wherein a distribution box is arranged below the workbench.

5. The PCB rapid test fixture of claim 4, wherein a power supply electrically connected with the PCB power supply terminal and the test pin is arranged in the distribution box.

6. The fixture for rapidly testing a PCB according to claim 1, wherein the upper surface of the worktable is provided with a radio frequency testing device at one side of the testing board.

7. The PCB board rapid test fixture of claim 6, wherein the radio frequency test device comprises a slide rail fixed on the upper surface of the workbench and a slide block slidably disposed above the slide rail, and the slide block is fixed with a radio frequency test terminal.

8. The PCB rapid test fixture of claim 7, wherein an inclined chute is fixed on the sliding block, a fixed block is fixed on the lower pressing plate, and a bearing corresponding to the inclined chute is fixed on the fixed block.

9. The PCB quick test fixture of claim 8, wherein the lower press plate is provided with an avoiding groove for avoiding the radio frequency test device.

10. The fixture for rapidly testing the PCB according to claim 1, wherein a retractable pogo pin is fixed on the pin plate.