CN211043570U

CN211043570U - Testing device for single-sided PCB

Info

Publication number: CN211043570U
Application number: CN201921248753.9U
Authority: CN
Inventors: 张东锋
Original assignee: Digital Printed Circuit Board Co Ltd
Current assignee: Digital Printed Circuit Board Co Ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-07-17
Anticipated expiration: 2029-07-31

Abstract

The utility model provides a testing device of a single-sided PCB, which comprises a bracket, wherein a conductive positioning seat is arranged in the bracket, and the bottom of the conductive positioning seat is connected with a grounding post; a lifting cylinder is further arranged in the support, the output end of the lifting cylinder is connected with a pushing plate, a movable through hole is formed in the pushing plate, a probe is arranged in the movable through hole, and the probe is located above the conductive positioning seat; the probe external fixation has last limiting plate and lower limiting plate, goes up the limiting plate and is located the top that bulldozes the board, and lower limiting plate is located the below that bulldozes the board, and the probe still overlaps outward to be equipped with first spring, and first spring is located and bulldozes between the board and the lower limiting plate. The utility model discloses can realize reliable wiring operation to PCB to effectively improve PCB's efficiency of software testing, the action of working a telephone switchboard at every turn all is accomplished through mechanical structure, can effectively reduce the test error, improves the reliability of test result, in addition, can also effectively avoid the electrostatic interference test result.

Description

Testing device for single-sided PCB

Technical Field

The utility model relates to a PCB test specifically discloses a single face PCB's testing arrangement.

Background

Pcb (printed Circuit board), also called printed Circuit board, is an important electronic component, which is a support for electronic components and a carrier for electrical connection of electronic components.

After the PCB is manufactured, a sampling test is required to ensure the performance of the PCB, and the problem that the produced PCB cannot effectively realize due functions is avoided. In the prior art, the sampling test of the PCB is completed by manually carrying out wiring test on each circuit of the PCB, the test efficiency is low, and the test error is large.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a single-sided PCB testing apparatus for solving the problems in the prior art, which can effectively improve the testing efficiency of the PCB and effectively reduce the testing error.

In order to solve the prior art problem, the utility model discloses a testing device of a single-sided PCB, which comprises a bracket, wherein a conductive positioning seat is arranged in the bracket, and the bottom of the conductive positioning seat is connected with a grounding post; a lifting cylinder is further arranged in the support, the output end of the lifting cylinder is connected with a pushing plate, a movable through hole is formed in the pushing plate, a probe is arranged in the movable through hole, and the probe is located above the conductive positioning seat; the probe external fixation has last limiting plate and lower limiting plate, goes up the limiting plate and is located the top that bulldozes the board, and lower limiting plate is located the below that bulldozes the board, and the probe still overlaps outward to be equipped with first spring, and first spring is located and bulldozes between the board and the lower limiting plate.

Furthermore, the bottom of the support is provided with two guide holes, the guide holes are located on two sides below the conductive positioning seat, guide pillars are arranged in the guide holes, the top of each guide pillar is fixed with a pressing plate, a second spring is sleeved outside each guide pillar, and the second spring is located between the pressing plate and the corresponding guide hole.

Furthermore, a limiting sleeve is arranged outside the second spring and fixedly connected with the support.

Further, still be equipped with ion fan in the support, the air outlet of ion fan is just to electrically conductive positioning seat.

Furthermore, both sides of the pushing plate symmetry are fixed with a first sliding block, both sides of the support symmetry are fixed with a sliding seat, one side of the sliding seat close to the pushing plate is provided with a sliding groove, and the first sliding block is connected in the sliding groove in a sliding manner.

Furthermore, a third spring is connected to the end wall of the bottom of the first sliding chute.

Furthermore, a linkage support is connected between the lifting cylinder and the pushing and pressing plate, a second sliding block is fixed at both ends of the linkage support, and the second sliding block is connected in the sliding groove in a sliding mode.

The utility model has the advantages that: the utility model discloses a single face PCB's testing arrangement is provided with stable PCB wiring structure, can realize reliable wiring operation to PCB to effectively improve PCB's efficiency of software testing, the action of working a telephone switchboard at every turn all is accomplished through mechanical structure, can effectively reduce test error, improves the reliability of test result, in addition, still is provided with reliable single face PCB static electricity discharge structure, can effectively avoid the electrostatic interference test result.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

The reference signs are: the device comprises a support 10, a guide hole 11, an ion fan 12, a conductive positioning seat 20, a grounding column 21, a guide column 22, a pressing plate 23, a second spring 24, a limiting sleeve 25, a lifting cylinder 30, a pushing plate 31, a first slide block 311, a movable through hole 32, a slide seat 33, a slide groove 331, a third spring 332, a linkage support 34, a second slide block 341, a probe 40, an upper limiting plate 41, a lower limiting plate 42 and a first spring 43.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

Refer to fig. 1.

The embodiment of the utility model discloses a testing device of a single-sided PCB, which comprises a bracket 10, wherein a conductive positioning seat 20 is arranged in the bracket 10, and the bottom of the conductive positioning seat 20 is connected with a grounding post 21; the support 10 is also provided with a lifting cylinder 30, the output end of the lifting cylinder 30 faces downwards, the output end of the lifting cylinder 30 is connected with a pushing plate 31, a movable through hole 32 is formed in the pushing plate 31, a probe 40 is arranged in the movable through hole 32, and the probe 40 is positioned above the conductive positioning seat 20; an upper limiting plate 41 and a lower limiting plate 42 are fixed outside the probe 40, the areas of the upper limiting plate 41 and the lower limiting plate 42 are both larger than the opening area of the movable through hole 32, the probe 40 can be limited not to be separated from the movable through hole 32, the test action can be ensured to be smoothly and accurately performed, the upper limiting plate 41 is positioned above the pushing plate 31, the lower limiting plate 42 is positioned below the pushing plate 31, the probe 40 is further sleeved with a first spring 43, preferably, the first spring 43 is an insulating spring, the test result of the probe 40 can be prevented from being influenced by the first spring 43, and the first spring 43 is positioned between the pushing plate 31 and the lower limiting plate 42.

The single-sided PCB is placed on the conductive positioning seat 20, one side of a circuit layer of the single-sided PCB is placed upwards, the conductive positioning seat 20 is connected with the grounding column 21, static electricity on the single-sided PCB can be effectively released, the static electricity can be prevented from influencing a test result of the single-sided PCB, the lifting cylinder 30 drives the pushing plate 31 to descend, the probe 40 is in contact with the circuit layer on the surface of the single-sided PCB, the probe 40 cannot continuously descend after being in contact with the single-sided PCB in the pressing process, the pushing plate 31 which continuously descends can extrude the first spring 43, the probe 40 can be ensured to be effectively in contact with the circuit layer of the single-sided PCB.

The utility model discloses be provided with stable PCB wiring structure, can realize reliable wiring operation to PCB to effectively improve PCB's efficiency of software testing, the action of working a telephone switchboard at every turn all is accomplished through mechanical structure, can effectively reduce the test error, improves the reliability of test result, in addition, still is provided with reliable single face PCB electrostatic discharge structure, can effectively avoid the electrostatic interference test result.

In this embodiment, two guide holes 11 are formed in the bottom of the bracket 10, the guide holes 11 are located at two sides below the conductive positioning seat 20, guide posts 22 are disposed in the guide holes 11, a pressing plate 23 is fixed at the top of the guide posts 22, the area of the pressing plate 23 is larger than the opening area of the guide holes 11, so that the pressing plate 23 can be ensured to have a sufficient position to press the single-sided PCB against the conductive positioning seat 20, a second spring 24 is sleeved outside the guide posts 22, the second spring 24 extends and contracts outside the guide posts 22, so that the second spring 24 can be effectively prevented from being deflected, the second spring 24 is located between the pressing plate 23 and the guide holes 11, namely, the two ends of the second spring 24 are respectively connected with the pressing plate 23 and the bottom of the bracket 10, the pressing plate 23 is pulled upwards, the PCB is placed between the pressing plate 23 and the conductive positioning seat 20, after the pressing plate 23 is loosened, under the action of the first spring 43, the pressing plate 23 tends to move downwards, so that the single-sided PCB can be clamped on the conductive positioning seat 20.

Based on the above embodiment, the limiting sleeve 25 is arranged outside the second spring 24, the limiting sleeve 25 is fixedly connected with the support 10, and the limiting sleeve 25 can further protect the second spring 24 and can further prevent the second spring 24 from deviating in the stretching process.

In this embodiment, still be equipped with ion fan 12 in the support 10, the air outlet of ion fan 12 is just to electrically conductive positioning seat 20, can effectively take away the electric charge on single face PCB surface circuit layer through ion fan 12 to can further improve the reliability of test result.

In this embodiment, two symmetrical sides of the pushing plate 31 are fixed with a first sliding block 311, two symmetrical sides of the bracket 10 are fixed with a sliding seat 33, one side of the sliding seat 33 close to the pushing plate 31 is provided with a sliding groove 331, and the first sliding block 311 is slidably connected in the sliding groove 331, so that the stability of the lifting action of the pushing plate 31 can be effectively improved, and meanwhile, the deviation of the probe 40 in the lifting process can be further avoided.

Based on the above embodiment, the end wall at the bottom of the first sliding chute 331 is connected with the third spring 332, and the third spring 332 effectively prevents the first sliding block 311 from colliding with the end wall of the first sliding chute 331, so that the pushing plate 31 can be effectively prevented from shaking violently, and the stability of the lifting action of the probe 40 is effectively improved.

In this embodiment, a linkage bracket 34 is further connected between the lifting cylinder 30 and the pushing plate 31, the linkage bracket 34 can effectively separate the lifting cylinder 30 and the pushing plate 31, when the probes 40 are closely distributed and close to the projection position of the lifting cylinder 30, it can be ensured that the tail end of the probe 40 has enough space to connect with an external test system, a second slider 341 is fixed at both ends of the linkage bracket 34, and the second slider 341 is slidably connected in the sliding groove 331, so that the stability of the lifting action of the linkage bracket 34 can be improved.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The single-sided PCB testing device is characterized by comprising a support (10), wherein a conductive positioning seat (20) is arranged in the support (10), and the bottom of the conductive positioning seat (20) is connected with a grounding column (21); the support (10) is also provided with a lifting cylinder (30), the output end of the lifting cylinder (30) is connected with a pushing plate (31), a movable through hole (32) is formed in the pushing plate (31), a probe (40) is arranged in the movable through hole (32), and the probe (40) is positioned above the conductive positioning seat (20); probe (40) external fixation has last limiting plate (41) and lower limiting plate (42), it is located the top that pushes away flitch (31) to go up limiting plate (41), lower limiting plate (42) are located the below that pushes away flitch (31), probe (40) still overlap outward and are equipped with first spring (43), first spring (43) are located push away flitch (31) with between lower limiting plate (42).

2. The testing device of the single-sided PCB as recited in claim 1, wherein the bottom of the bracket (10) is provided with two guiding holes (11), the guiding holes (11) are located at two sides below the conductive positioning seat (20), a guiding post (22) is arranged in the guiding hole (11), a pressing plate (23) is fixed at the top of the guiding post (22), a second spring (24) is sleeved outside the guiding post (22), and the second spring (24) is located between the pressing plate (23) and the guiding hole (11).

3. The single-sided PCB testing device of claim 2, wherein a limiting sleeve (25) is arranged outside the second spring (24), and the limiting sleeve (25) is fixedly connected with the bracket (10).

4. The single-sided PCB testing device of claim 1, wherein an ion blower (12) is further arranged in the bracket (10), and an air outlet of the ion blower (12) is opposite to the conductive positioning seat (20).

5. The testing device of the single-sided PCB as recited in claim 1, wherein a first sliding block (311) is fixed on each symmetrical side of the pushing plate (31), a sliding seat (33) is fixed on each symmetrical side of the bracket (10), a sliding slot (331) is formed on one side of the sliding seat (33) close to the pushing plate (31), and the first sliding block (311) is slidably connected in the sliding slot (331).

6. The testing device of a single-sided PCB as claimed in claim 5, wherein a third spring (332) is connected to an end wall of the bottom of the first chute (331).

7. The testing device of the single-sided PCB as claimed in claim 5 or 6, wherein a linkage bracket (34) is further connected between the lifting cylinder (30) and the pushing plate (31), a second sliding block (341) is fixed at both ends of the linkage bracket (34), and the second sliding block (341) is slidably connected in the sliding groove (331).