CN219285331U

CN219285331U - Circuit board test fixture

Info

Publication number: CN219285331U
Application number: CN202223351255.1U
Authority: CN
Inventors: 刘延; 俞晶鑫; 刘树俊
Original assignee: Shanghai Yinghuo Zhixian Technology Co ltd
Current assignee: Shanghai Yinghuo Zhixian Technology Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-06-30
Anticipated expiration: 2032-12-12

Abstract

The utility model discloses a circuit board testing tool which comprises a testing table body, a testing bottom plate, a testing top plate and a multi-point position fixing piece, wherein the testing bottom plate is placed on the upper end face of the testing table body and is fixed by the multi-point position fixing piece, and the testing top plate is located right above the testing top plate and is installed on the upper end face of the testing table body through a lifting mechanism. According to the utility model, through the arrangement of the multi-point fixing piece, the multi-point fixing of the test bottom plate can be realized, the stability of the installation of the test bottom plate is ensured, and meanwhile, when the test bottom plate is installed or detached, the operation is time-saving and labor-saving, and the installation and detachment difficulty of the test bottom plate is reduced, so that the test bottom plate is convenient to maintain or replace.

Description

Circuit board test fixture

Technical Field

The utility model relates to the technical field of circuit boards, in particular to a circuit board testing tool.

Background

In the related art, in the production of semiconductor chips, a wafer is required to be mounted on a circuit board, and then basic functional tests such as power on, short circuit, and open circuit are required to be performed on the circuit board on which the wafer is mounted. The current circuit board test fixture is generally composed of a test bottom plate, a test top plate and the like, wherein a probe is arranged on the test bottom plate and fixed on a test table surface, and the test top plate is arranged above the test bottom plate by using a lifting mechanism. When the circuit board is required to be tested, the circuit board is placed on the test bottom plate, and the test top plate is driven to descend through the lifting mechanism and is closed with the test bottom plate, so that the test of the circuit board is realized. The test floor needs to be maintained or replaced periodically, and the test floor is detached and installed when the maintenance or replacement of the test floor is performed.

However, in the existing circuit board testing tool, a plurality of bolts and nuts are usually used for fixing the testing bottom plate and the testing table, which makes the disassembly or the assembly of the testing bottom plate particularly time-consuming and labor-consuming.

Based on this, a circuit board test fixture is provided to solve the above-mentioned problem.

Disclosure of Invention

The utility model aims to provide a circuit board testing tool, which reduces the difficulty in mounting and dismounting a testing bottom plate, thereby facilitating the maintenance or replacement of the testing bottom plate.

In order to solve the technical problems, the utility model provides a circuit board testing tool which comprises a testing table body, a testing bottom plate, a testing top plate and a multi-point fixing piece.

The test bottom plate is placed on the upper end face of the test bench body and fixed by the multi-point fixing piece.

The test top plate is located right above the test top plate and is installed on the upper end face of the test bench body through the lifting mechanism.

The multi-point position fixing piece comprises a plurality of fixing columns distributed on the periphery of the upper end face of the test bench body, a plurality of driving rods hinged with the fixing columns respectively and a plurality of driving blocks hinged with the driving rods jointly, the fixing columns are horizontally and slidably mounted on the upper end face of the test bench body, a plurality of fixing holes matched with the fixing columns respectively are formed in the side wall of the test bottom plate, the driving blocks are vertically and slidably mounted on the lower end face of the test bench body through guide rails, and extension springs are connected between the driving blocks and the bottom ends of the guide rails.

Further, the multi-point position fixing piece further comprises a locking piece, the locking piece comprises a mounting plate arranged on one end face of the driving block and a limiting inserting column which penetrates through the side wall of the mounting plate and is elastically mounted on the mounting plate, and a limiting insertion hole matched with the limiting inserting column is formed in the upper end of the side wall of the guide rail.

Further, a pull ring is arranged at one end of the limiting plunger, which is far away from the guide rail.

Further, a compression spring is connected between the surface of the mounting plate, which is close to one side of the guide rail, and the limiting plug post.

Further, the compression spring is slidably sleeved on the limiting plug post.

Further, the extension spring is sleeved on the guide rail in a sliding manner.

Further, a positioning and placing groove matched with the testing bottom plate is formed in the upper end face of the testing table body.

Compared with the prior art, the utility model has at least the following beneficial effects:

according to the utility model, through the arrangement of the multi-point fixing piece, the multi-point fixing of the test bottom plate can be realized, the stability of the installation of the test bottom plate is ensured, and meanwhile, when the test bottom plate is installed or detached, the operation is time-saving and labor-saving, and the installation and detachment difficulty of the test bottom plate is reduced, so that the test bottom plate is convenient to maintain or replace.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a circuit board test fixture in an embodiment of the utility model;

fig. 2 is a schematic view of an installation structure of a locking member according to an embodiment of the present utility model.

Detailed Description

The circuit board testing fixture of the present utility model will be described in more detail below in conjunction with the schematic drawings, wherein preferred embodiments of the present utility model are shown, it being understood that one skilled in the art could modify the utility model described herein while still achieving the advantageous effects of the utility model. Accordingly, the following description is to be construed as broadly known to those skilled in the art and not as limiting the utility model.

The utility model is more particularly described by way of example in the following paragraphs with reference to the drawings. Advantages and features of the utility model will become more apparent from the following description and from the claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model.

As shown in fig. 1, an embodiment of the utility model provides a circuit board testing tool, which comprises a testing table body 1, a testing bottom plate 2, a testing top plate 3 and a multi-point fixing piece 4.

The test base plate 2 is placed on the upper end face of the test bench body 1 and is fixed by the multi-point fixing piece 4.

The test top plate 3 is located right above the test top plate 3 and is installed on the upper end face of the test bench body 1 through a lifting mechanism 5.

The multi-point fixing piece 4 comprises a plurality of fixing columns 41 distributed around the upper end face of the test bench body 1, a plurality of driving rods 42 hinged with the fixing columns 41 respectively and a plurality of driving blocks 43 hinged with the driving rods 42 jointly, the fixing columns 41 are horizontally and slidably mounted on the upper end face of the test bench body 1, a plurality of fixing holes 21 matched with the fixing columns 41 respectively are formed in the side wall of the test bottom plate 2, the driving blocks 43 are vertically and slidably mounted on the lower end face of the test bench body 1 through guide rails 45, extension springs 46 are connected between the driving blocks 43 and the bottom ends of the guide rails 45, and the extension springs 46 are slidably sleeved on the guide rails 45.

In this embodiment, through the setting of multiposition mounting 4, can realize carrying out multiposition fixed to test bottom plate 3, guaranteed the stability of test bottom plate 3 installation, simultaneously, when carrying out test bottom plate 3's installation or dismantlement, operation labour saving and time saving has reduced test bottom plate 3's installation and has dismantled the degree of difficulty to the convenience is maintained or is changed test bottom plate 3.

Specifically, when the test base plate 3 is installed, the lifting driving block 43 is first applied to drive the plurality of fixing columns 41 to synchronously move towards the outer side of the test base plate 1, and then the test base plate 3 is positioned and placed at the corresponding position on the upper surface of the test base plate 1, so that the test base plate 3 can be positioned and placed conveniently, and the positioning and placing groove 11 matched with the test base plate 2 can be formed in the test base plate 1. After the positioning and placing of the test bottom plate are completed, the driving block 43 is withdrawn to apply force, under the action of the elastic force of the extension spring 46, the driving block 43 automatically moves downwards to drive the plurality of fixing columns 41 to synchronously move towards the inner side of the test table body 1 into the corresponding fixing holes 21, so that the stable installation of the test bottom plate 3 is completed, and the whole process is time-saving and labor-saving.

When the installed test bottom plate 3 needs to be disassembled, only the force is applied to lift the driving block 43, the fixing columns 41 are driven to synchronously move towards the outer side of the test bench body 1, the fixing columns 41 are separated from the fixing holes 21 matched with the fixing columns 41, the test bottom plate 3 can be taken down from the test bench body 1, and the disassembly of the test bottom plate 3 is completed, so that time and labor are saved in the whole process.

In a specific embodiment, referring to fig. 2, preferably, to further facilitate the installation and the removal of the test base plate 3, the multi-point fixing member 4 may further include a locking member 44, where the locking member 44 includes a mounting plate 441 mounted on an end surface of the driving block 43, and a limiting plug post 442 elastically mounted with the mounting plate 441 through a side wall of the mounting plate 441, and a limiting receptacle 451 matched with the limiting plug post 442 is formed at an upper end of a side wall of the guide rail 45.

A compression spring 444 is connected between the surface of the mounting plate 441, which is close to one side of the guide rail 45, and the limiting plunger 442, and the compression spring 444 is slidably sleeved on the limiting plunger 442.

In this embodiment, after the fixing column 41 is transported to the extreme end outside the test bench body 1, the limiting plug column 442 is inserted into the limiting jack 451, so that the fixing column 41 keeps stable and unchanged in position, which makes it unnecessary to continuously manually lift and apply force to the driving block 43 when the test base plate 3 is positioned and placed in the process of mounting the test base plate 3 and when the test base plate 3 is taken out in the process of dismounting the test base plate 3, thereby further facilitating the mounting and dismounting of the test base plate.

Further, to facilitate the pulling of the limiting plug 442, the limiting plug 442 is separated from the limiting jack 451, and a pull ring 443 is installed at an end of the limiting plug 442 away from the guide rail 45.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. The circuit board testing tool is characterized by comprising a testing table body, a testing bottom plate, a testing top plate and a multi-point fixing piece;

the test bottom plate is placed on the upper end face of the test bench body and is fixed by the multi-point fixing piece;

the test top plate is positioned right above the test top plate and is arranged on the upper end surface of the test bench body through the lifting mechanism;

2. The circuit board test fixture of claim 1, wherein the multi-point fixing member further comprises a locking member, the locking member comprises a mounting plate arranged on one end face of the driving block and a limiting plug column elastically arranged through the side wall of the mounting plate and the mounting plate, and a limiting jack matched with the limiting plug column is formed in the upper end of the side wall of the guide rail.

3. The circuit board test fixture of claim 2, wherein a pull ring is mounted at an end of the limit post remote from the guide rail.

4. The circuit board test fixture of claim 2, wherein a compression spring is connected between a side surface of the mounting plate adjacent to the guide rail and the limit post.

5. The circuit board test fixture of claim 4, wherein the compression spring is slidably disposed over the limit post.

6. The circuit board test fixture of claim 1, wherein the tension spring is slidably sleeved on the guide rail.

7. The circuit board test fixture of claim 1, wherein the upper end surface of the test bench body is provided with a positioning groove matched with the test bottom plate.