Circuit board detection jig

Abstract

The utility model discloses a circuit board detection jig, which aims to position a circuit board, avoid manual cable connection and improve the detection efficiency, and adopts the technical scheme that the circuit board detection jig comprises a base, a profiling groove for accommodating the circuit board is arranged on the base, a cavity is arranged in the base, a detection module is arranged in the cavity, and the detection module is connected with the profiling groove. The detection module is provided with a contact probe, the bottom of the profiling groove is provided with a through hole, the through hole is communicated with the cavity, the contact probe is arranged in the through hole in a penetrating mode, a pressing plate is arranged above the base, one side, close to the profiling groove, of the pressing plate is provided with a plurality of pressing columns, and the pressing plate is driven by the driving module to ascend and descend. When the pressing plate descends, the pressing column can tightly press the circuit board in the profiling groove, and the detection module can be connected with the circuit board through the contact probe, and belongs to the technical field of television production.

Description

Technical Field

[0001] This utility model belongs to the field of television production technology, and more specifically, relates to a circuit board testing fixture. Background Technology

[0002] After production, TV boards need to be tested. Generally, cables are pre-configured, connected to the circuit board, and then the power is turned on to run the program to see if the circuit board can operate normally.

[0003] However, at present, the testing tools are relatively simple. The cables are connected on the workbench, and then the cables are manually plugged into the circuit board before powering on for testing. This method is quite troublesome when connecting cables, as it requires checking the cables and interfaces. In addition, multiple cables need to be connected each time, which is quite labor-intensive. Utility Model Content

[0004] The main purpose of this utility model is to provide a circuit board testing fixture, which can position the circuit board without the need for manual wiring, thereby improving testing efficiency.

[0005] According to a first aspect of the present invention, a circuit board testing fixture is provided, comprising a base, wherein the base is provided with a contoured groove for accommodating a circuit board, the base is provided with a cavity, the cavity is provided with a testing module, the testing module is provided with a contact probe, the bottom of the contoured groove is provided with a through hole, the through hole communicates with the cavity, the contact probe passes through the through hole, a pressure plate is provided above the base, and multiple pressure columns are provided on the side of the pressure plate near the contoured groove, the pressure plate is raised and lowered under the drive of a driving module;

[0006] When the pressure plate descends, the pressure column can press the circuit board into the contoured groove, and the detection module can be connected to the circuit board through the contact probe.

[0007] In the circuit board testing fixture described above, the base includes a top plate, a bottom plate, and a side plate. The side plate connects the top plate and the bottom plate, and the cavity is formed between the top plate and the bottom plate. The contoured groove is disposed on the top plate.

[0008] In the circuit board testing fixture described above, the bottom of the contoured groove is provided with a top column that can be elastically raised and lowered.

[0009] When the pressure post is not pressing the circuit board, the top of the top post is higher than the bottom of the contoured groove.

[0010] In the circuit board testing fixture described above, the bottom of the contoured groove is provided with a blind hole, and the top plate is provided with a through hole. The axis of the blind hole is parallel to the lifting direction of the pressure plate, and the axis of the through hole is perpendicular to the axis of the blind hole. The through hole connects the blind hole to the outside of the top plate. The top post is located in the blind hole, and a sliding rod is provided in the through hole. The sliding rod has an inclined surface on the side near the top post. The inclined surface slopes downward in the direction close to the top post, and the bottom of the top post contacts the inclined surface. A plug is provided at the end of the through hole away from the blind hole, and a spring is provided between the plug and the sliding rod.

[0011] In the circuit board testing fixture described above, the bottom of the top post has an arc-shaped end.

[0012] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0013] In this invention, a contoured groove is used to position the circuit board, and various detection cables are integrated into a detection module. A contact probe is used to bring out the interface of the detection module. When the circuit board is pressed into the contoured groove, the contact probe will contact the pins of the circuit board. Without connecting the interface, the detection cables can be connected to the circuit board. After that, the power is turned on and the program can run to detect whether the circuit board is normal. With this structure, there is no need to manually connect the cables, thus improving the detection efficiency. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a front view of the first embodiment of the present invention;

[0016] Figure 2 This is a top view of the base of the first embodiment of this utility model;

[0017] Figure 3 This is the first embodiment of the present utility model. Figure 2 AA sectional view.

[0018] The figure labels for each figure are as follows:

[0019] 1. Base; 11. Contouring groove; 111. Blind hole; 12. Chamber; 13. Detection module; 14. Through hole; 15. Top plate; 151. Through hole; 152. Sliding rod; 153. Plug; 154. Spring; 16. Base plate; 17. Side plate; 2. Pressure plate; 3. Pressure column; 4. Drive module; 5. Top column. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] The following disclosure provides many different implementation methods or examples for different solutions to implement this utility model.

[0022] Reference Figures 1 to 3 As shown, a circuit board testing fixture includes a base 1, a contoured groove 11 for accommodating the circuit board, a chamber 12 inside the base 1, a testing module 13 inside the chamber 12, a contact probe on the testing module 13, a through hole 14 at the bottom of the contoured groove 11 communicating with the chamber 12, the contact probe passing through the through hole 14, a pressure plate 2 above the base 1, and multiple pressure columns 3 on the side of the pressure plate 2 near the contoured groove 11, the pressure plate 2 being raised and lowered under the drive of a drive module 4;

[0023] When the pressure plate 2 descends, the pressure column 3 can press the circuit board into the contoured groove 11, and the detection module 13 can be connected to the circuit board through the contact probe;

[0024] The circuit board can be positioned using the contoured groove 11, and the various detection cables can be integrated into a detection module 13. The interface of the detection module 13 is brought out using contact probes. When the circuit board is pressed against the contoured groove 11, the contact probes will contact the pins of the circuit board. Without connecting the interface, the detection cables can be connected to the circuit board. After that, the power can be turned on to run the program and check whether the circuit board is normal. With this structure, there is no need to manually connect the cables, which improves the detection efficiency.

[0025] In this embodiment, the detection module 13 integrates the detection cables together and uses an acrylic plate to fix the contact probes and determine the position of the contact probes. The pins on the circuit board connect to the detection cables and provide power by contacting the contact probes. The layout of the contact probes is determined according to the pin distribution of the circuit board.

[0026] In this embodiment, the base 1 includes a top plate 15, a bottom plate 16 and a side plate 17. The side plate 17 connects the top plate 15 and the bottom plate 16. A cavity 12 is formed between the top plate 15 and the bottom plate 16. A contoured groove 11 is provided on the top plate 15.

[0027] With this structure, the detection module 13 can be fixed first, and then the top plate 15 can be installed. When the detection module 13 needs to be adjusted, the top plate 15 can also be removed.

[0028] Preferably, the side panel 17 can be made of transparent acrylic sheet to facilitate observation of the situation inside the chamber 12.

[0029] In this embodiment, the bottom of the contoured groove 11 is provided with a top column 5 that can be elastically raised and lowered;

[0030] When the pressure column 3 is not pressing the circuit board, the top of the top column 5 is higher than the bottom of the contour groove 11. When the pressure column 3 presses the circuit board, the circuit board can press down the top column 5 to ensure that the circuit board can be attached to the bottom of the contour groove 11 and the pins of the circuit board can contact the release probe. After the test is completed, as long as the pressure column 3 rises, the top column 5 will push the circuit board to pop up, making it easy to remove the circuit board.

[0031] In this embodiment, the bottom of the contoured groove 11 is provided with a blind hole 111, and the top plate 15 is provided with a through hole 151. The axis of the blind hole 111 is parallel to the lifting direction of the pressure plate 2, and the axis of the through hole 151 is perpendicular to the axis of the blind hole 111. The through hole 151 connects the blind hole 111 with the outside of the top plate 15. The top post 5 is located in the blind hole 111. A sliding rod 152 is provided in the through hole 151. The sliding rod 152 is provided with an inclined surface on the side near the top post 5. The inclined surface slopes downward in the direction near the top post 5. The bottom of the top post 5 contacts the inclined surface. A plug 153 is provided at the end of the through hole 151 away from the blind hole 111. A spring 154 is provided between the plug 153 and the sliding rod 152.

[0032] Because the thickness of the top plate 15 is limited, the top column 5 cannot be raised and lowered directly by the spring 154, so a transmission structure is set up.

[0033] When the circuit board presses down on the top post 5, the top post 5 pushes the sliding rod 152 to compress the spring 154, thereby causing the top post 5 to descend; when the pressure post 3 rises, the spring 154 pushes the sliding rod 152 to move, causing the sliding rod 152 to push the top post 5 to rise.

[0034] In this embodiment, the bottom of the top column 5 is an arc-shaped end, which makes smooth contact with the inclined surface and prevents jamming.

[0035] In this embodiment, the drive module 4 is a pneumatic cylinder, an electric cylinder, or a quick clamp.

[0036] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A circuit board testing fixture, characterized in that, The device includes a base with a contoured groove for accommodating a circuit board. The base contains a chamber with a detection module and a contact probe. The bottom of the contoured groove has a through hole communicating with the chamber. The contact probe passes through the through hole. A pressure plate is located above the base, with multiple pressure pillars on the side of the pressure plate near the contoured groove. The pressure plate moves up and down under the drive of a drive module. When the pressure plate descends, the pressure column can press the circuit board into the contoured groove, and the detection module can be connected to the circuit board through the contact probe.

2. The circuit board testing fixture according to claim 1, characterized in that, The base includes a top plate, a bottom plate, and a side plate. The side plate connects the top plate and the bottom plate, and the cavity is formed between the top plate and the bottom plate. The contoured groove is disposed on the top plate.

3. The circuit board testing fixture according to claim 2, characterized in that, The bottom of the contoured groove is provided with a top column that can be elastically raised and lowered; When the pressure post is not pressing the circuit board, the top of the top post is higher than the bottom of the contoured groove.

4. The circuit board testing fixture according to claim 3, characterized in that, The bottom of the contoured groove is provided with a blind hole, and the top plate is provided with a through hole. The axis of the blind hole is parallel to the lifting direction of the pressure plate, and the axis of the through hole is perpendicular to the axis of the blind hole. The through hole connects the blind hole to the outside of the top plate. The top post is located in the blind hole, and a sliding rod is provided in the through hole. The sliding rod has an inclined surface on the side near the top post. The inclined surface slopes downward in the direction close to the top post, and the bottom of the top post contacts the inclined surface. A plug is provided at the end of the through hole away from the blind hole, and a spring is provided between the plug and the sliding rod.

5. The circuit board testing fixture according to claim 4, characterized in that, The bottom of the top column has an arc-shaped end.

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