CN211148708U

CN211148708U - PCB welding pin test fixture

Info

Publication number: CN211148708U
Application number: CN201921310888.3U
Authority: CN
Inventors: 万礼; 李后勇; 岳振明; 袁广亚
Original assignee: JIANGSU DIFEIDA ELECTRONICS CO LTD
Current assignee: JIANGSU DIFEIDA ELECTRONICS CO LTD
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-07-31
Anticipated expiration: 2029-08-13

Abstract

The utility model discloses a PCB welding pin test fixture, include: a square bottom plate; four corners of the bottom plate are provided with a supporting rod; a moving plate is arranged on the four support rods in a sliding manner; springs are arranged between the bottom plate and the moving plate on the four support rods; a lower pressing block is arranged at the upper end of the moving plate; a cavity is arranged inside the lower pressing block; a test circuit board is fixedly arranged at the top in the cavity; the lower end of the test circuit board is provided with a probe; the probe can slidably penetrate through the lower pressing block and the moving plate; the rear end of the bottom plate is provided with a power supply connector; the power connector is electrically connected with the test circuit board. In this way, the utility model discloses simple structure, convenient to use can test circuit board have or not rosin joint, leaks to weld, or short circuit phenomenon to the damage of product is avoided.

Description

PCB welding pin test fixture

Technical Field

The utility model relates to a PCB welding pin test fixture's improvement, in particular to simple structure, convenient to use can test circuit board have or not rosin joint, leaks to weld, or short circuit phenomenon to the PCB welding pin test fixture of the damage of product is avoided.

Background

Pcb (printed Circuit board), which is called printed Circuit board in chinese, is an important electronic component, is a support for electronic components, and is a carrier for electrical connection of electronic components. It is called a "printed" circuit board because it is made using electronic printing.

The existing test fixture can only fix the electronic devices such as mobile phones in a single specific plane, such as a horizontal plane or a vertical plane, for subsequent production, assembly or testing. However, when the electronic device is placed in different postures for testing, the electronic device needs to be rotated and tilted to different states for testing, a large positioning error is generated, and thus the use experience of the geomagnetic sensor in the indoor positioning process is reduced. Therefore, the existing test fixture is difficult to meet the requirements.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a simple structure, and convenient to use can test circuit board have or not rosin joint, leaks to weld, or short circuit phenomenon to the PCB welding pin test fixture of the damage of product is avoided.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a PCB welding pin test fixture comprises: a square bottom plate; four corners of the bottom plate are provided with a supporting rod; a moving plate is arranged on the four support rods in a sliding manner; springs are arranged between the bottom plate and the moving plate on the four support rods; a lower pressing block is arranged at the upper end of the moving plate; a cavity is arranged inside the lower pressing block; a test circuit board is fixedly arranged at the top in the cavity; the lower end of the test circuit board is provided with a probe; the probe can slidably penetrate through the lower pressing block and the moving plate; the rear end of the bottom plate is provided with a power supply connector; the power connector is electrically connected with the test circuit board.

Preferably, an inverted U-shaped bracket is fixedly arranged in the middle of the bottom plate; the bracket penetrates through the moving plate and is arranged in the cavity; the upper end of the bracket is provided with a positioning column; the test circuit board is provided with a positioning hole; the positioning columns correspond to the positioning holes; the probe is slidable through the upper end of the holder.

Preferably, two limiting blocks are respectively arranged on the bottom plate and positioned at two sides of the lower pressing block; the limiting block is C-shaped; the lower edge of the upper end of the limiting block is in contact with the side edge of the lower pressing block, and the lower end of the limiting block is fixed on the bottom plate.

Preferably, the upper end of the lower pressing block is arc-shaped.

A PCB welding pin test fixture, simple structure, convenient to use can test circuit board have or not rosin joint, leaks to weld, or short circuit phenomenon to the damage of product is avoided.

Drawings

The technical scheme of the utility model is further explained by combining the attached drawings as follows:

FIG. 1 is the PCB welding pin test fixture's structure schematic diagram.

FIG. 2 is a schematic structural diagram of PCB welding pin test fixture after removing the lower pressing block.

FIG. 3 is a front view of PCB welding pin test fixture after removing the lower pressing block.

Wherein: 1. a base plate; 2. a support bar; 3. moving the plate; 4. a spring; 5. pressing the block; 6. testing the circuit board; 7. a probe; 8. a support; 9. a positioning column; 10. positioning holes; 11. a limiting block; 12. and a power supply connector.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to fig. 1 to 3, the present invention includes: a PCB welding pin test fixture comprises: a square base plate 1; four corners of the bottom plate 1 are respectively provided with a supporting rod 2; a moving plate 3 is arranged on the four support rods 2 in a sliding manner; springs 4 are arranged between the bottom plate 1 and the moving plate 3 on the four support rods 2; a lower pressing block 5 is arranged at the upper end of the moving plate 3; the upper end of the lower pressing block 5 is arc-shaped; a cavity is arranged inside the lower pressing block 5; a test circuit board 6 is fixedly arranged at the top in the cavity; the lower end of the test circuit board 6 is provided with a probe 7; the probe 7 can slidably penetrate through the lower pressing block 5 and the moving plate 3; the rear end of the bottom plate 1 is provided with a power supply connector 12; the power connector 12 is electrically connected to the test circuit board 6.

An inverted U-shaped bracket 8 is fixedly arranged in the middle of the bottom plate 1; the bracket 8 penetrates through the moving plate 3 and is arranged in the cavity; the upper end of the bracket 8 is provided with a positioning column 9; the test circuit board 6 is provided with a positioning hole 10; the positioning columns 9 correspond to the positioning holes 10; the probe 7 is slidable through the upper end of the holder 8.

Two sides of the lower pressing block 5 on the bottom plate 1 are respectively provided with a limiting block 11; the limiting block 11 is C-shaped; the lower edge of the upper end of the limiting block 11 is in contact with the upper edge of the lower pressing block 5, and the lower end of the limiting block is fixed on the bottom plate 1.

The working process is as follows: placing the PCB on the bottom plate 1 below the probe 7; then the power supply is switched on, and then the pressing block 5 is pressed down; the lower pressing block 5 drives the probe 7 downwards until the probe is contacted with the PCB, and the test can be started after the lower pressing block 5 presses the PCB, and the test is finished; the lower pressing block 5 is loosened, and under the elastic force of the spring 4, the movable plate 3 moves upwards to drive the lower pressing block 5 to move upwards to be in contact with the limiting block 11; and finally, taking out the PCB.

The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims

1. The utility model provides a PCB welding needle test fixture which characterized in that: the method comprises the following steps: a square bottom plate; four corners of the bottom plate are provided with a supporting rod; a moving plate is arranged on the four support rods in a sliding manner; springs are arranged between the bottom plate and the moving plate on the four support rods; a lower pressing block is arranged at the upper end of the moving plate; a cavity is arranged inside the lower pressing block; a test circuit board is fixedly arranged at the top in the cavity; the lower end of the test circuit board is provided with a probe; the probe can slidably penetrate through the lower pressing block and the moving plate; the rear end of the bottom plate is provided with a power supply connector; the power connector is electrically connected with the test circuit board.

2. The PCB welding pin test fixture of claim 1, wherein: an inverted U-shaped bracket is fixedly arranged in the middle of the bottom plate; the bracket penetrates through the moving plate and is arranged in the cavity; the upper end of the bracket is provided with a positioning column; the test circuit board is provided with a positioning hole; the positioning columns correspond to the positioning holes; the probe is slidable through the upper end of the holder.

3. The PCB welding pin test fixture of claim 1, wherein: two sides of the lower pressing block on the bottom plate are respectively provided with a limiting block; the limiting block is C-shaped; the lower edge of the upper end of the limiting block is in contact with the side edge of the lower pressing block, and the lower end of the limiting block is fixed on the bottom plate.

4. The PCB welding pin test fixture of claim 1, wherein: the upper end of the Su search lower pressing block is arc-shaped.