Combined test fixture

Abstract

The utility model discloses a combined test fixture, including frame body, locating piece, telescoping mechanism, first connecting mechanism and second connecting mechanism, locating piece is arranged in the frame body, locating piece is used for locating PCB board in the frame body, telescoping mechanism is arranged between locating piece and frame body, and the first connecting mechanism is used for connecting the first connecting mechanism with the second connecting mechanism. And the telescopic mechanism is used for changing the position of the positioning piece in the frame body. According to the utility model, through the arrangement of the positioning member, the circuit board abuts against the corner, opposite to the positioning member, in the frame body, and then the positioning member moves to clamp the corner of the PCB under the cooperation of the first connecting mechanism, the second connecting mechanism and the telescoping mechanism, so that the PCB can be positioned, the stability of the PCB can be conveniently tested, and the testing efficiency is improved. And meanwhile, due to the arrangement of the telescopic mechanism, multi-position adjustment can be carried out on the positioning piece, so that the jig can position PCBs of different sizes, and the applicability of the jig is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to PCB test fixture technical field, especially in combination formula test fixture. BACKGROUND

[0002] With the rapid iteration and diversification development of electronic products, as the core component of electronic products, the size, shape and function of printed circuit board also show the diversification trend.

[0003] The conventional PCB test fixture usually adopts the positioning structure of fixed size, such as positioning pin, positioning block etc., these structures can only adapt to the PCB board of specific size, cannot flexibly cope with the test demand of different size PCB board, needs to design and manufacture different test fixtures for different size PCB board, increases production cost and cycle, reduces test efficiency, for this, we propose a combination formula test fixture. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a combination formula test fixture to solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a combination formula test fixture, comprising:

[0006] Frame body;

[0007] Positioning piece, the positioning piece is arranged in the inside of frame body, and the positioning piece is used for positioning the PCB board in the frame body;

[0008] Telescopic mechanism, the telescopic mechanism is arranged between the positioning piece and frame body, and the telescopic mechanism is used for changing the position of the positioning piece in the frame body;

[0009] First connecting mechanism, the first connecting mechanism is arranged between telescopic mechanism and positioning piece;

[0010] Second connecting mechanism, the second connecting mechanism is arranged between telescopic mechanism and frame body.

[0011] Preferably, the positioning piece includes a clamping block, the clamping block is arranged in L shape, the clamping block is slidably arranged in the inside of frame body, and the telescopic mechanism is arranged between frame body and clamping block.

[0012] Preferably, the telescopic mechanism includes:

[0013] Connecting barrel, the first connecting mechanism is arranged between connecting barrel and clamping block;

[0014] Connecting rod, the second connecting mechanism is arranged between connecting rod and frame body, and the outer wall of connecting rod and the inner wall of connecting barrel are movably connected.

[0015] A positioning mechanism is disposed between the connecting cylinder and the connecting rod.

[0016] Preferably, the positioning mechanism includes:

[0017] A groove is formed on the outer wall of the connecting cylinder;

[0018] A bolt, which is fixedly connected to the end of a connecting rod, wherein the outer wall of the bolt is slidably connected to the inner wall of a groove;

[0019] A locking nut is provided on the outside of the connecting cylinder, and the locking nut is threaded onto the outer wall of the bolt.

[0020] Preferably, the first connecting mechanism includes:

[0021] The first connecting block is fixedly connected to the end of the connecting cylinder away from the connecting rod.

[0022] The first rotating groove is formed on the outer wall of the card block, and the first connecting block is inserted into the interior of the first rotating groove;

[0023] The first rotating shaft is fixedly connected to the top and bottom ends of the first connecting block;

[0024] The first rotating hole is formed on the inner wall of the first rotating groove, and the outer wall of the first rotating shaft is rotatably connected to the inner wall of the first rotating hole.

[0025] Preferably, the second connecting mechanism includes:

[0026] The second connecting block is fixedly connected to the end of the connecting rod away from the connecting cylinder;

[0027] The second rotating groove is formed on the inner wall of the frame, and the second connecting block is inserted into the interior of the second rotating groove;

[0028] The second rotating shaft is fixedly connected to the top and bottom ends of the second connecting block;

[0029] The second rotating hole is formed on the inner wall of the second rotating groove, and the outer wall of the second rotating shaft is rotatably connected to the inner wall of the second rotating hole.

[0030] Preferably, a first rubber pad is affixed to the inner wall of the frame, and a second rubber pad is affixed to the outer wall of the card block.

[0031] The technical effects and advantages of this utility model are as follows:

[0032] This utility model utilizes a positioning component to hold the circuit board against the corner of the frame opposite the positioning component. Then, with the cooperation of the first connecting mechanism, the second connecting mechanism, and the telescopic mechanism, the positioning component moves and locks the corner of the PCB board, thereby positioning the PCB board and facilitating stability testing. At the same time, the telescopic mechanism allows for multi-position adjustment of the positioning component, enabling the fixture to position PCB boards of different sizes, thus improving the applicability of the fixture. Attached Figure Description

[0033] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0034] Figure 2 This utility model Figure 1 A magnified schematic diagram of the structure at point A.

[0035] Figure 3 This utility model Figure 1 A magnified schematic diagram of the structure at point B.

[0036] Figure 4 This utility model Figure 1 A magnified schematic diagram of the structure at point C.

[0037] In the diagram: 101, frame; 102, locking block; 201, connecting cylinder; 202, connecting rod; 301, sliding groove; 302, bolt; 303, locking nut; 401, first rotating groove; 402, first connecting block; 403, first rotating shaft; 404, first rotating hole; 501, second connecting block; 502, second rotating groove; 503, second rotating shaft; 504, second rotating hole; 601, first rubber pad; 602, second rubber pad. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] This utility model provides, for example Figures 1-4The illustrated combined test fixture includes a frame 101, a positioning component, a telescopic mechanism, a first connecting mechanism, and a second connecting mechanism. The positioning component is disposed inside the frame 101 and is used to position the PCB board inside the frame 101. The telescopic mechanism is disposed between the positioning component and the frame 101 and is used to change the position of the positioning component within the frame 101. The first connecting mechanism is disposed between the telescopic mechanism and the positioning component, and the second connecting mechanism is disposed between the telescopic mechanism and the frame 101. The circuit board is pressed against the corner of the frame 101 opposite to the positioning component. Then, with the cooperation of the first connecting mechanism, the second connecting mechanism, and the telescopic mechanism, the positioning component moves and locks the corner of the PCB board, thereby positioning the PCB board and facilitating stable testing of the PCB board. At the same time, the telescopic mechanism allows for multi-position adjustment of the positioning component, enabling the fixture to position PCB boards of different sizes, thus improving the applicability of the fixture.

[0040] The positioning component includes a locking block 102, which is L-shaped and slidably disposed inside the frame 101. A telescopic mechanism is disposed between the frame 101 and the locking block 102. The PCB board is pressed against the corner of the frame 101 opposite the locking block 102, and then the locking block 102 locks one corner of the PCB board. At this time, the two diagonally opposite corners of the PCB board are pressed against each other, so that the PCB board can be stably positioned.

[0041] The telescopic mechanism includes a connecting cylinder 201, a connecting rod 202, and a positioning mechanism. The first connecting mechanism is located between the connecting cylinder 201 and the locking block 102, and the second connecting mechanism is located between the connecting rod 202 and the frame 101. The outer wall of the connecting rod 202 is movably inserted into the inner wall of the connecting cylinder 201. The positioning mechanism is located between the connecting cylinder 201 and the connecting rod 202. By moving the connecting rod 202 within the connecting cylinder 201, the position of the locking block 102 can be adjusted, thereby improving the convenience of adjusting the locking block 102.

[0042] The positioning mechanism includes a slide groove 301, a bolt 302, and a locking nut 303. The slide groove 301 is formed on the outer wall of the connecting cylinder 201. The bolt 302 is fixedly connected to the end of the connecting rod 202. The outer wall of the bolt 302 is slidably connected to the inner wall of the slide groove 301. The locking nut 303 is set on the outside of the connecting cylinder 201 and threaded onto the outer wall of the bolt 302. After the first rubber pad 601 is adjusted to the required position, the connecting rod 202 and the connecting cylinder 201 can be fixed by tightening the locking nut 303 on the outside of the bolt 302. At this time, the position of the locking block 102 cannot be changed, thereby improving the stability of the locking block 102.

[0043] The first connecting mechanism includes a first rotating groove 401, a first connecting block 402, a first rotating shaft 403, and a first rotating hole 404. The first connecting block 402 is fixedly connected to the end of the connecting cylinder 201 away from the connecting rod 202. The first rotating groove 401 is formed on the outer wall of the locking block 102. The first connecting block 402 is inserted into the interior of the first rotating groove 401. The first rotating shaft 403 is fixedly connected to the top and bottom ends of the first connecting block 402. The first rotating hole 404 is formed on the inner wall of the first rotating groove 401. The outer wall of the first rotating shaft 403 is rotatably connected to the inner wall of the first rotating hole 404. The second connecting mechanism includes a second connecting block 501, a second rotating groove 502, a second rotating shaft 503, and a second rotating hole 504. The connecting block 501 is fixedly connected to the end of the connecting rod 202 away from the connecting cylinder 201. The second rotating groove 502 is opened on the inner wall of the frame 101. The second connecting block 501 is inserted into the interior of the second rotating groove 502. The second rotating shaft 503 is fixedly connected to the top and bottom ends of the second connecting block 501. The second rotating hole 504 is opened on the inner wall of the second rotating groove 502. The outer wall of the second rotating shaft 503 is rotatably connected to the inner wall of the second rotating hole 504. By rotating the first rotating shaft 403 in the first rotating hole 404 and rotating the second rotating shaft 503 in the second rotating hole 504, the position of the locking block 102 can be adjusted in a variety of ways within the frame 101, thereby ensuring that the fixture can position PCBs of different sizes.

[0044] The inner wall of the frame 101 is fitted with a first rubber pad 601, and the outer wall of the clamping block 102 is fitted with a second rubber pad 602. The first rubber pad 601 and the second rubber pad 602 ensure that the PCB board will not make hard contact when it is positioned, thus preventing damage to the PCB board and ensuring that the fixture can stably clamp the PCB board.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A combined testing fixture, characterized in that, include: Frame (101); A positioning component is disposed inside the frame (101) and is used to position the PCB board inside the frame (101). A telescopic mechanism is provided between the positioning member and the frame (101), and the telescopic mechanism is used to change the position of the positioning member within the frame (101); A first connecting mechanism is disposed between the telescopic mechanism and the positioning member; The second connecting mechanism is disposed between the telescopic mechanism and the frame (101).

2. The combined test fixture according to claim 1, characterized in that, The positioning component includes a locking block (102), which is L-shaped and slidably disposed inside the frame (101). The telescopic mechanism is disposed between the frame (101) and the locking block (102).

3. The combined test fixture according to claim 2, characterized in that, The telescopic mechanism includes: Connecting cylinder (201), the first connecting mechanism is disposed between the connecting cylinder (201) and the locking block (102); A connecting rod (202) is provided, and the second connecting mechanism is disposed between the connecting rod (202) and the frame (101). The outer wall of the connecting rod (202) is movably inserted and connected to the inner wall of the connecting cylinder (201). A positioning mechanism is provided between the connecting cylinder (201) and the connecting rod (202).

4. A combined testing fixture according to claim 3, characterized in that, The positioning mechanism includes: A groove (301) is formed on the outer wall of the connecting cylinder (201); Bolt (302), the bolt (302) is fixedly connected to the end of the connecting rod (202), and the outer wall of the bolt (302) is slidably connected to the inner wall of the groove (301); A locking nut (303) is provided on the outside of the connecting cylinder (201), and the locking nut (303) is threaded onto the outer wall of the bolt (302).

5. A combined testing fixture according to claim 3, characterized in that, The first connecting mechanism includes: The first connecting block (402) is fixedly connected to the end of the connecting cylinder (201) away from the connecting rod (202); The first rotating groove (401) is formed on the outer wall of the card block (102), and the first connecting block (402) is inserted into the interior of the first rotating groove (401); The first rotating shaft (403) is fixedly connected to the top and bottom ends of the first connecting block (402); The first rotating hole (404) is formed on the inner wall of the first rotating groove (401), and the outer wall of the first rotating shaft (403) is rotatably connected to the inner wall of the first rotating hole (404).

6. A combined test fixture according to claim 3, characterized in that, The second connecting mechanism includes: The second connecting block (501) is fixedly connected to the end of the connecting rod (202) away from the connecting cylinder (201); The second rotating groove (502) is opened on the inner wall of the frame (101), and the second connecting block (501) is inserted into the interior of the second rotating groove (502); The second rotating shaft (503) is fixedly connected to the top and bottom ends of the second connecting block (501); The second rotating hole (504) is formed on the inner wall of the second rotating groove (502), and the outer wall of the second rotating shaft (503) is rotatably connected to the inner wall of the second rotating hole (504).

7. A combined testing fixture according to claim 2, characterized in that, The inner wall of the frame (101) is provided with a first rubber pad (601), and the outer wall of the card block (102) is provided with a second rubber pad (602).

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