CN218003476U

CN218003476U - Pneumatic test fixture of PCB board

Info

Publication number: CN218003476U
Application number: CN202221552782.6U
Authority: CN
Inventors: 陈新
Original assignee: Sichuan Bozhong New Enterprise Technology Co ltd
Current assignee: Sichuan Bozhong New Enterprise Technology Co ltd
Priority date: 2022-06-21
Filing date: 2022-06-21
Publication date: 2022-12-09
Anticipated expiration: 2032-06-21

Abstract

The utility model relates to a reflow soldering field, concretely relates to pneumatic test fixture of PCB board, including the switch board, be equipped with test platform and test jig on the cupboard top of switch board, be in the dead ahead of test jig at test platform, the PCB board is placed on test platform, the test jig is higher than test platform, the test jig is 7 font shapes, top at the test jig is equipped with and drives actuating cylinder, it is vertical downwards to drive actuating cylinder's cylinder shaft, the connecting plate is being installed at the front end of cylinder shaft, elastic connecting post is being installed to the lower extreme at the connecting plate, needle bedplate is being installed to elastic connecting post's lower extreme, the probe is being installed to the lower extreme at needle bedplate, the probe hangs directly over test platform. The operating principle pushes down the connecting plate through the cylinder, and the PCB board on the survey test panel is flattened to the probe on the needle file board, then the test of accomplishing relevant function is arranged to the test of contact bottom, and the complete machine adopts aluminum alloy material, and the quality is slim and graceful, and the less test of accomplishing the circuit board in the limited place in space that is fit for of volume.

Description

Pneumatic test fixture of PCB board

Technical Field

The utility model relates to a testing arrangement field of PCB board, concretely relates to pneumatic test fixture of PCB board.

Background

A Printed Circuit Board (PCB), which is also called a Printed Circuit Board (PCB) as a chinese name, is an important electronic component, a support for an electronic component, and a carrier for electrical connection of the electronic component. It is called a "printed" circuit board because it is made using electronic printing.

With the progress of internet technology, more and more kinds of electronic products are coming into the market. For manufacturers of electronic products, the detection efficiency and accuracy of the PCB are very important. In the present situation, many enterprises are still using simple tools, such as a quick clamp to fix a PCB. For the increasing circuit board demands in the market, an efficient and precise automatic device is needed to improve the detection efficiency.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the utility model is to provide a pneumatic test fixture of PCB board has the advantage that simple structure, size are little, easy operation.

In order to realize the purpose, the technical scheme of the utility model is as follows:

the utility model provides a pneumatic test fixture of PCB board, which comprises a control cabinet, be equipped with test platform and test jig on the cupboard top of switch board, be in the dead ahead of test jig at test platform, the PCB board is placed on test platform, the test jig is higher than test platform, the test jig is 7 font shapes, top at the test jig is equipped with and drives actuating cylinder, it is vertical downwards to drive actuating cylinder's jar axle, the connecting plate is being installed at the front end of jar axle, elastic connecting column is being installed to the lower extreme at the connecting plate, needle bedplate is being installed to elastic connecting column's lower extreme, the probe is being installed to the lower extreme at needle bedplate, the probe hangs directly over test platform.

Furthermore, the test platform is erected on the control cabinet through four support columns, a test socket arranged below the test platform is installed on the test platform, a through hole for the test socket to pass through is formed in the test platform, and a socket hole of the PCB is inserted into the test socket.

Further, be equipped with the card post of vertical ascending installation on test platform, the card post is installed around PCB board periphery round, is equipped with the bar blind hole on test platform, and the bar blind hole uses the PCB board as the center, towards sharp extension all around, and the lower extreme of card post is equipped with the slider and inlays in the bar blind hole.

Further, the elastic connecting column comprises a column body, a spring, a rubber pad and a connecting pad, the upper end of the column body is fixed on the connecting plate, an extending through hole is formed in the needle base plate, the lower end of the column body penetrates through the extending through hole and moves up and down in the extending through hole, and the spring, the rubber pad and the connecting pad are sequentially sleeved on the column body from top to bottom.

Furthermore, both ends are equipped with the slide rail hole about the rear side of needle file board, install the support slide rail between the upper end of switch board and test jig, the needle file board passes through the axle sleeve and installs on supporting the slide rail.

Furthermore, the front side surface of the control cabinet is provided with a start-stop button for driving the air cylinder, the side surface of the control cabinet is provided with a movable switch door, and the control cabinet is internally provided with a control circuit and electrical components.

Compared with the prior art, the utility model beneficial effect be: the pneumatic test fixture is simple, the connecting plate is pressed downwards through the air cylinder according to the working principle, the probes on the needle base plate flatten the PCB on the test plate, then the PCB is contacted with the test socket at the bottom to complete the test of related functions, the whole machine is made of aluminum alloy, the quality is light, the size is small, and the pneumatic test fixture is suitable for completing the test of the circuit board in a place with limited space.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of the structure of the present invention;

fig. 3 is a schematic rear view of the present invention;

fig. 4 is a schematic front view of the elastic connecting column.

Detailed Description

In order to make the technical means, creation characteristics, achievement purpose and efficacy of the utility model easy to understand and understand, the utility model is further explained by combining with the specific embodiments.

The pneumatic test fixture for the PCB comprises a control cabinet 1, wherein a test platform 2 and a test frame 3 are arranged on the top of the control cabinet 1, the test platform 2 is positioned right ahead the test frame 3, the test platform 2 is arranged on the control cabinet 1 through four support column frames 20, a test socket 4 arranged below the test platform 2 is arranged on the test platform 2, a through hole for the test socket 4 to pass through is formed in the test platform 2, and a socket of a PCB 5 is inserted into the test socket 4. Preferably, for nimble PCB board 5 that blocks different girths, be equipped with the card post 21 of vertical installation upwards on test platform 2, card post 21 centers on 5 periphery rounds of installation of PCB board, is equipped with the bar blind hole on test platform 2, and the bar blind hole uses PCB board 5 as the center, and towards sharp extension all around, the lower extreme of card post 21 is equipped with the slider and inlays in the bar blind hole, and card post 21 can be in the bar blind hole round trip movement adjustment interval to adapt to the 5 joints of PCB board of different length, different width in this position. PCB board 5 is placed on test platform 2, test jig 3 is higher than test platform 2, test jig 3 is 7 font shapes, top at test jig 3 is equipped with and drives actuating cylinder 6, the cylinder axle that drives actuating cylinder 6 is vertical downwards, connecting plate 7 is being installed at the front end of cylinder axle, elastic connection post 8 is being installed to the lower extreme at connecting plate 7, needle bedplate 9 is being installed to elastic connection post 8's lower extreme, probe 10 is being installed at the lower extreme of needle bedplate 9, probe 10 hangs directly over test platform 2, each place of probe 10 even distribution in PCB board 5 top. When the driving cylinder 6 is pressed down, the probes 10 are pressed down from a plurality of positions, and can press the PCB 5 on the test platform 2, so that the PCB is flatly placed on the test platform 2, and the socket of the PCB 5 is accurately inserted into the test socket 4, and then the test can be completed.

In order to ensure that the probe 10 elastically presses the PCB 5 and does not crush the printed circuit on the PCB 5, the elastic connecting column 8 comprises a column 80, a spring 81, a rubber pad 82 and a connecting pad 83, the upper end of the column 80 is fixed on the connecting plate 7, an extending through hole is arranged on the needle base plate 9, the lower end of the column 80 penetrates through the extending through hole and moves up and down in the extending through hole, and the spring 81, the rubber pad 82 and the connecting pad 83 are sequentially sleeved on the column 80 from top to bottom. When the needle base plate 9 is pressed downwards, the elastic connecting column 8 can flexibly adjust the pressing distance.

Preferably, in order to further ensure the stability of the up-and-down movement of the needle seat plate 9, sliding rail holes are formed in the left end and the right end of the rear side of the needle seat plate 9, a supporting sliding rail 11 is installed between the control cabinet 1 and the upper end of the test frame 3, the needle seat plate 9 is installed on the supporting sliding rail 11 through a shaft sleeve 12, and the supporting sliding rail 11 can also ensure that the needle seat plate 9 keeps a straight running route when moving up and down, so that the probe 10 is prevented from being poked at other positions to damage a printed circuit.

In order to ensure the operability, the front side of the control cabinet 1 is provided with an on-off button 13 for driving the air cylinder 6, the side of the control cabinet 1 is provided with a movable switch door 14, and the control cabinet 1 is internally provided with a control circuit and electrical components. The air supply pipe and the electric circuit of the driving air cylinder 6 are both led out upwards from the rear of the control cabinet, the circuit of the test socket 4 is led out from the top of the control cabinet 1, and the hidden circuit avoids errors in the operation of the machine.

Before beginning the test, it does not stretch out to drive actuating cylinder, lift on connecting plate 7 and the needle file board 9, treat that the staff puts the PCB board on the testboard after, pneumatic drive actuating cylinder 6 drives actuating cylinder and takes the needle file board to push down, make the probe lower the PCB, let the row jack of PCB board 5 insert test row and insert 4 in, begin the test, after the test is accomplished, it rises to drive actuating cylinder gassing, the PCB board that takes out the test this moment, put a new PCB board that awaits measuring and go into, action more than the repetition.

It is right above the utility model provides a pair of pneumatic test fixture of PCB board has carried out detailed introduction. The description of the specific embodiments is only for the purpose of helping understanding the method of the present invention and the core idea thereof, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. The utility model provides a pneumatic test fixture of PCB board which characterized in that: the test bench comprises a control cabinet, be equipped with test platform and test jig on the cupboard top of switch board, be in the dead ahead of test jig at test platform, the PCB board is placed on test platform, the test jig is higher than test platform, the test jig is 7 font shapes, top at the test jig is equipped with and drives actuating cylinder, it is vertical downwards to drive actuating cylinder's jar axle, the connecting plate is being installed at the front end of jar axle, elastic connecting column is being installed to lower extreme at the connecting plate, the needle board is being installed to elastic connecting column's lower extreme, the probe is being installed to the lower extreme at the needle board, the probe hangs directly over test platform.

2. The pneumatic test fixture of PCB board of claim 1, wherein: the test platform is erected on the control cabinet through four support columns, the test socket arranged below the test platform is installed on the test platform, a through hole for the test socket to penetrate is formed in the test platform, and the socket hole of the PCB is inserted into the test socket.

3. The pneumatic test fixture of PCB board of claim 2, wherein: be equipped with the card post of vertical upwards installation on test platform, the card post is equipped with the bar blind hole around the installation of PCB board periphery round on test platform, and the bar blind hole uses the PCB board as the center, and towards sharp extension all around, the lower extreme of card post is equipped with the slider and inlays in the bar blind hole.

4. The pneumatic test fixture of PCB board of claim 1, wherein: the elastic connecting column comprises a column body, a spring, a rubber pad and a connecting pad, the upper end of the column body is fixed on the connecting plate, an extending through hole is formed in the needle base plate, the lower end of the column body penetrates through the extending through hole and moves up and down in the extending through hole, and the spring, the rubber pad and the connecting pad are sequentially sleeved on the column body from top to bottom.

5. The pneumatic test fixture for PCB board of claim 1, wherein: the needle bed plate is provided with sliding rail holes at the left end and the right end of the rear side, a supporting sliding rail is arranged between the control cabinet and the upper end of the test frame, and the needle bed plate is arranged on the supporting sliding rail through a shaft sleeve.

6. The pneumatic test fixture of PCB board of claim 1, wherein: the front side of the control cabinet is provided with a start-stop button for driving the air cylinder, the side of the control cabinet is provided with a movable switch door, and the control cabinet is internally provided with a control circuit and an electrical element.