PCB (Printed Circuit Board) test fixture

Abstract

The utility model discloses a PCB (printed circuit board) test fixture, which belongs to the technical field of PCB circuit detection, and comprises a fixture base, the upper end of the fixture base is fixedly connected with a vertical frame, and the upper end of the fixture base is provided with a fixture fixing mechanism for positioning a PCB; the front side of the vertical frame is provided with a detection mechanism used for screening a defective circuit of the PCB. A vent valve for ventilation is arranged on the side wall of the vertical frame; the detection mechanism comprises a driving assembly and a detection assembly, and the driving assembly is arranged on the side wall of the vertical frame; the detection assembly used for detecting a PCB circuit is arranged on the lower side of the driving assembly. By means of the mode, an operator positions the PCB through the tool fixing mechanism, the driving assembly drives the detection assembly to conduct circuit detection on the PCB, convenience and rapidness are achieved, defective circuits of the PCB can be conveniently and rapidly screened out, and operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board circuit detection, in particular to a PCB board testing fixture. Background Art

[0002] PCBs, or printed circuit boards, are an indispensable component of electronic devices and are widely used in computers, communications equipment, consumer electronics, automotive electronics, industrial control, and many other fields. The quality of PCBs directly impacts the performance and reliability of electronic devices. During the manufacturing process, various defects such as open circuits, short circuits, poor soldering, and damaged components may occur. Inspection can promptly identify these issues and allow them to be repaired or scrapped, preventing defective PCBs from being installed in electronic devices and ensuring the quality of the final product.

[0003] Chinese patent CN219302502U discloses a PCB circuit detection device, comprising a base plate, a rotating column movably connected to the top of the base plate, a rotating plate fixedly connected to the top of the rotating column, a first motor fixedly connected to the right side of the bottom of the base plate, a first transmission wheel fixedly connected to the output shaft of the first motor, and a second transmission wheel fixedly connected to the surface of the rotating column. The utility model is used to install and fix the rotating column and the motor by setting a base plate, to drive the rotating plate to rotate by setting a rotating column, to drive the rotating column to rotate by setting a first motor, a first transmission wheel and a second transmission wheel, to position and fix the workpiece by setting a positioning mechanism, to detect the workpiece by setting a detection mechanism, and to have two sets of clamping assemblies on the top of the rotating plate, so that the PCB board can be detected without stopping the machine, thereby achieving the purpose of high detection efficiency of the PCB circuit detection device. However, the device still has the following problems:

[0004] After the device detects that there is a problem with the PCB board circuit, it is unable to obtain the specific circuit of the PCB board circuit board where the problem occurs.

[0005] Based on this, the present invention designs a PCB board testing fixture to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a PCB board testing fixture.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A PCB board test fixture, comprising a fixture base,

[0009] The upper end of the jig base is fixedly connected to a stand, and the upper end of the jig base is provided with a tool fixing mechanism for positioning the PCB board; the front side of the stand is provided with a detection mechanism for screening problem circuits of the PCB board; the side wall of the stand is provided with a ventilation valve for ventilation;

[0010] The detection mechanism includes a driving component and a detection component. The driving component is arranged on the side wall of the stand; the detection component for detecting the PCB board circuit is arranged on the lower side of the driving component.

[0011] Furthermore, the tool fixing mechanism includes a PCB board fixing plate, a limiting groove and a fixing disc, the PCB board fixing plate is fixedly connected to the upper end of the jig base; the limiting groove is provided on the upper end of the PCB board fixing plate; the upper end of the PCB board fixing plate is fixedly connected to a fixing disc for positioning the PCB board; a slot is formed between the fixing disc and the limiting groove for convenient placement of the PCB board.

[0012] Furthermore, the driving assembly includes an electric pressing head, a control panel, a side panel and a column. The electric pressing head is fixedly connected to the upper side of the front end of the frame; the output end of the electric pressing head is fixedly connected to the control panel; the front end of the frame is fixedly connected to the side panels symmetrically on the left and right, and a column is provided at the lower end of the side panel, and the upper end of the column is fixedly connected to the side panel; the lower end of the column is fixedly connected to the fixture base.

[0013] Furthermore, the control panel is slidably connected to the column.

[0014] Furthermore, the detection component includes a mounting plate, a detection probe, a wiring terminal, contacts and an indicator light. The two mounting plates are fixedly connected to the upper end of the control board, and five detection probes are provided on the upper end of each mounting plate; the upper end of the fixed disc is fixedly connected to two wiring terminals that cooperate with the detection probes; five contacts are provided on the upper end of the wiring terminal; and five indicator lights are fixedly connected to the front end of the fixture base.

[0015] Furthermore, the lower end of the detection probe passes through the mounting plate.

[0016] Furthermore, one terminal of the indicator light is electrically connected to the detection probe on the front mounting plate, and another terminal of the indicator light is electrically connected to the detection probe on the rear mounting plate.

[0017] Furthermore, a switch for controlling the power supply is provided on the side wall of the fixture base.

[0018] Compared with the existing technology, the beneficial effects of the present invention are as follows: the operator positions the PCB board through the tooling fixing mechanism, and the driving component drives the detection component to perform circuit detection on the PCB board, which is convenient and fast, and is convenient for quickly screening out circuits with problems on the PCB board, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0020] Figure 1 A three-dimensional PCB test fixture of the utility model Figure 1 ;

[0021] Figure 2 A three-dimensional PCB test fixture of the utility model Figure 2 ;

[0022] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 4 for Figure 1 Enlarged view of point B in the middle.

[0024] The numbers in the figure represent:

[0025] 10. Fixture base; 11. Stand; 2. Fixture fixing mechanism; 21. PCB board fixing plate; 22. Limiting groove; 23. Fixed disc; 3. Detection mechanism; 31. Drive assembly; 311. Electric pressing head; 312. Control board; 313. Side panel; 314. Column; 32. Detection assembly; 321. Mounting plate; 322. Detection probe; 323. Terminal block; 324. Contact; 325. Indicator light; 4. Vent valve; 5. Switch. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0027] Example 1: In some embodiments, please refer to the accompanying drawings of the specification. Figures 1-4 A PCB board test fixture includes a fixture base 10,

[0028] The upper end of the jig base 10 is fixedly connected to a stand 11, and a tool fixing mechanism 2 for positioning the PCB board is provided on the upper end of the jig base 10; a detection mechanism 3 for screening problem circuits of the PCB board is provided on the front side of the stand 11; and a ventilation valve 4 for ventilation is provided on the side wall of the stand 11;

[0029] The detection mechanism 3 includes a driving component 31 and a detection component 32 . The driving component 31 is arranged on the side wall of the stand 11 ; the detection component 32 for detecting the PCB board circuit is arranged on the lower side of the driving component 31 .

[0030] In the present invention, the operator positions the PCB board through the tooling fixing mechanism 2, and the driving component 31 cooperates with the detection component 32 to perform circuit detection on the PCB board, which is convenient and fast, and is convenient for quickly screening out circuits with problems on the PCB board, thereby improving work efficiency.

[0031] The fixture fixing mechanism 2 includes a PCB board fixing plate 21, a limiting groove 22, and a fixing disc 23. The PCB board fixing plate 21 is fixedly connected to the upper end of the fixture base 10; the limiting groove 22 is provided on the upper end of the PCB board fixing plate 21; the fixing disc 23 for positioning the PCB board is fixedly connected to the upper end of the PCB board fixing plate 21; a slot is formed between the fixing disc 23 and the limiting groove 22 for accommodating the placement of the PCB board;

[0032] The driving assembly 31 includes an electric pressing head 311, a control board 312, a side plate 313 and a column 314. The electric pressing head 311 is fixedly connected to the upper side of the front end of the stand 11; the output end of the electric pressing head 311 is fixedly connected to the control board 312; the front end of the stand 11 is fixedly connected to the side plates 313 symmetrically, and the lower end of the side plates 313 is provided with a column 314, and the upper end of the column 314 is fixedly connected to the side plates 313; the lower end of the column 314 is fixedly connected to the fixture base 10; the control board 312 is slidably connected to the column 314;

[0033] The detection component 32 includes a mounting plate 321, a detection probe 322, a wiring terminal 323, a contact 324 and an indicator light 325. The two mounting plates 321 are fixedly connected to the upper end of the control board 312. Five detection probes 322 are provided on the upper end of each mounting plate 321, and the lower end of the detection probe 322 passes through the mounting plate 321; the upper end of the fixed disc 23 is fixedly connected to two wiring terminals 323 that cooperate with the detection probes 322; five contacts 324 are provided on the upper end of the wiring terminal 323; five indicator lights 325 are fixedly connected to the front end of the fixture base 10; one terminal of the indicator light 325 is electrically connected to the detection probe 322 on the front mounting plate 321, and the other terminal of the indicator light 325 is electrically connected to the detection probe 322 on the rear mounting plate 321; the side wall of the fixture base 10 is provided with a switch 5 for controlling the power supply.

[0034] When the PCB board is in the working state, the PCB board 323 is in the working state, and the PCB board 323 ...

[0035] In the present invention, the slot formed by the limiting groove 22 and the fixed disc 23 is used to realize the positioning of the PCB board, thereby ensuring the accuracy of the electrical connection between the terminal 323 and the PCB board; the control board 312 is driven by the electric pressure head 311 to drive the mounting plate 321 and the detection probe 322 to move downward, and after turning on the switch 5 of the control power supply, five electrical paths are formed. If there is a problem with the circuit of the PCB board, the indicator light 325 connected to the corresponding electrical path will not light up, and the circuit with the problem on the PCB board can be accurately found.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A PCB board test fixture, comprising a fixture base (10), characterized in that: The upper end of the jig base (10) is fixedly connected to a stand (11), and a tool fixing mechanism (2) for positioning the PCB board is provided on the upper end of the jig base (10); a detection mechanism (3) for screening problematic circuits of the PCB board is provided on the front side of the stand (11); and a ventilation valve (4) for ventilation is provided on the side wall of the stand (11); The detection mechanism (3) comprises a driving component (31) and a detection component (32), wherein the driving component (31) is arranged on a side wall of the stand (11); and the detection component (32) for detecting the PCB circuit is arranged on the lower side of the driving component (31); The fixture fixing mechanism (2) comprises a PCB board fixing plate (21), a limiting groove (22) and a fixing disc (23); the PCB board fixing plate (21) is fixedly connected to the upper end of the fixture base (10); the limiting groove (22) is provided at the upper end of the PCB board fixing plate (21); the fixing disc (23) for positioning the PCB board is fixedly connected to the upper end of the PCB board fixing plate (21); a slot for accommodating the placement of the PCB board is formed between the fixing disc (23) and the limiting groove (22); The driving assembly (31) includes an electric pressing head (311), a control panel (312), a side panel (313), and a column (314). The electric pressing head (311) is fixedly connected to the upper side of the front end of the stand (11); the output end of the electric pressing head (311) is fixedly connected to the control panel (312); the front end of the stand (11) is fixedly connected to the side panel (313) in a left-right symmetrical manner; the lower end of the side panel (313) is provided with a column (314); the upper end of the column (314) is fixedly connected to the side panel (313); and the lower end of the column (314) is fixedly connected to the fixture base (10); The detection assembly (32) includes a mounting plate (321), a detection probe (322), a wiring terminal (323), a contact (324) and an indicator light (325). The two mounting plates (321) are fixedly connected to the upper end of the control board (312), and each mounting plate (321) is provided with five detection probes (322) at the upper end; the upper end of the fixed disc (23) is fixedly connected to two wiring terminals (323) that cooperate with the detection probes (322); the upper end of the wiring terminal (323) is provided with five contacts (324); and the five indicator lights (325) are fixedly connected to the front end of the fixture base (10).

2. The PCB board test fixture according to claim 1, characterized in that: The control panel (312) is slidably connected to the column (314).

3. The PCB board test fixture according to claim 2, characterized in that: The lower end of the detection probe (322) passes through the mounting plate (321).

4. The PCB board test fixture according to claim 3, characterized in that: One terminal of the indicator light (325) is electrically connected to the detection probe (322) on the front mounting plate (321), and another terminal of the indicator light (325) is electrically connected to the detection probe (322) on the rear mounting plate (321).

5. The PCB board test fixture according to claim 4, characterized in that: A switch (5) for controlling power supply is provided on the side wall of the fixture base (10).

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