A circuit board assembly test fixture

Abstract

This utility model discloses a circuit board assembly testing fixture, including: a fixed base, a movable component, and a mounting component. The movable component includes a movable stop that is inserted into the top of the fixed base. A sliding part is provided at the intersection of the fixed base and the movable stop. A rotating part is inserted into the side of the fixed base. A limiting part is provided on the side of the movable stop and the fixed base. The mounting component is disposed on the side of the fixed base and is used to fix the position of the fixed base. This utility model has a movable component on the top of the fixed base. The rotating part in the movable component rotates, driving the sliding part on the top of the fixed base to move. Thus, the circuit board is limited and locked in place by the movable stop and the limiting part on the side of the fixed base. Compared with using clamps to directly hold the circuit board, this design presses and fixes the circuit board by the edge of the circuit board, avoiding clamping damage to the solder joints on the surface of the circuit board during clamping, which would affect the testing of the circuit board assembly.

Description

Technical Field

[0001] This utility model relates to the field of circuit board fixtures, and in particular to a circuit board assembly testing fixture. Background Technology

[0002] During the testing of circuit board assemblies, the test fixture needs to stably fix the circuit board to ensure the testing accuracy. Traditional fixtures often use mechanical clamping structures (clamps) to directly clamp the sides of the circuit board. At this time, the clamping structure is in direct contact with the solder joints on the surface of the circuit board. The local clamping of the claws will generate internal stress on the circuit board, which can easily damage the solder joints on the surface of the circuit board and affect the accuracy of the test results.

[0003] Therefore, in order to solve the problem of easy damage to the solder joints on the surface of the circuit board during local clamping, a circuit board assembly testing fixture is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a circuit board assembly testing fixture to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a circuit board assembly testing fixture, comprising:

[0006] Fixed base;

[0007] A movable component for pressing and limiting a circuit board, the movable component including a movable stop block inserted into the top of a fixed base, a sliding part for limiting the movable stop block provided at the insertion point between the fixed base and the movable stop block, a rotating part for pushing the movable stop block to move provided on the side of the fixed base, and a limiting part for engaging the circuit board provided on the side of the movable stop block and the fixed base.

[0008] The mounting component is disposed on the side of the fixing base and is used to fix the position of the fixing base.

[0009] Preferably, the sliding part includes:

[0010] The movable groove is located at the intersection of the movable stop and the fixed seat;

[0011] A limiting slider is disposed in the inner cavity of the movable groove, and the top of the limiting slider is fixedly connected to the bottom of the movable stop.

[0012] Preferably, the rotating part includes:

[0013] A threaded rod, the ends of which are sequentially inserted and connected to the side of the fixed seat and the side of the movable stop;

[0014] A limiting ring is provided at the intersection of the threaded rod and the fixed seat, and the limiting ring is used to limit the threaded rod and the moving block;

[0015] A throttle is located at the end of the threaded rod away from the fixed seat, and the throttle is used to assist in the rotation of the threaded rod.

[0016] Preferably, the limiting portion includes:

[0017] Positioning plates, wherein multiple positioning plates are respectively disposed on the side of the movable block and the side of the fixed base;

[0018] Circuit board slots, multiple circuit board slots are formed on the side of the positioning plate, and the circuit board slots are used for the insertion of circuit boards;

[0019] A locking component is provided at the connection between the positioning plate and the movable stop and the fixed seat, and the locking component is used to fix the positioning plate.

[0020] Preferably, the locking element includes:

[0021] Fixing screws, a plurality of fixing screws are respectively inserted and connected at the connection between the positioning plate and the movable block and at the connection between the positioning plate and the fixed base;

[0022] A buffer structure is provided at the connection between the positioning plate and the moving block, and the buffer structure is used for the compression buffer of the positioning plate.

[0023] Preferably, the buffer structure includes a flexible pad, which is disposed on the opposite side of the positioning plate and the moving block.

[0024] Preferably, the mounting assembly includes mounting rings, and a plurality of mounting rings are disposed on the side of the fixing base, the mounting rings being used for mounting and fixing the fixing base.

[0025] The technical effects and advantages of this utility model are as follows:

[0026] This invention features a movable component on the top of a fixed base. The rotating part of the movable component rotates, causing the sliding part on the top of the fixed base to move. This allows the movable stop and the limiting part on the side of the fixed base to limit and fix the circuit board. Compared to using clips to directly hold the circuit board, this design presses and fixes the circuit board by the edge of the circuit board, avoiding clamping damage to the solder joints on the surface of the circuit board during the clamping process, which would affect the testing of the circuit board assembly. Attached Figure Description

[0027] Figure 1 This is one of the overall structural schematic diagrams of this utility model.

[0028] Figure 2 The second schematic diagram shows the overall structure of this utility model.

[0029] Figure 3 This is a front view of the entire utility model.

[0030] Figure 4 This is a side view of the entire utility model.

[0031] Figure 5 This is a cross-sectional view of the entire utility model.

[0032] Figure 6 This is a cross-sectional view of the connection between the positioning plate and the fixing seat of this utility model.

[0033] In the diagram: 1. Fixed base; 101. Movable groove; 2. Positioning plate; 201. Circuit board slot; 3. Fixing screw; 4. Flexible pad; 5. Moving block; 501. Limiting slider; 6. Threaded rod; 601. Limiting ring; 7. Rotary handle; 8. Mounting ring. Detailed Implementation

[0034] 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.

[0035] This utility model provides, for example Figure 1-6 As shown,

[0036] Example 1: The circuit board assembly test fixture of this example includes: a fixed base 1, a movable component, and a mounting component;

[0037] It should be noted that the movable component is used to squeeze the limiting circuit board, and the mounting component is set on the side of the fixed base 1. The mounting component is used to fix the position of the fixed base 1.

[0038] Specifically, the movable component includes a movable stop 5 that is inserted into the top of the fixed base 1. A sliding part for limiting the movable stop 5 is provided at the insertion point between the fixed base 1 and the movable stop 5. A rotating part for pushing the movable stop 5 to move is inserted into the side of the fixed base 1. A limiting part for engaging the circuit board is provided on the side of the movable stop 5 and the fixed base 1.

[0039] It should be noted that the movable stop 5 is L-shaped, and the sliding part includes: a movable groove 101 and a limiting slider 501;

[0040] Specifically, the movable groove 101 is opened at the intersection of the movable stop 5 and the fixed seat 1, and the limiting slider 501 is set in the inner cavity of the movable groove 101. The top of the limiting slider 501 is fixedly connected to the bottom of the movable stop 5.

[0041] It should be noted that the cross-section of the movable groove 101 is convex, and the limiting slider 501 is also convex. Its top is fixed to the movable stop 5 by welding, and the limiting slider 501 limits the sliding of the movable stop 5.

[0042] Specifically, the rotating part includes: a threaded rod 6, a limiting ring 601, and a throttle 7;

[0043] It should be noted that the end of the threaded rod 6 is sequentially inserted and connected to the side of the fixed seat 1 and the side of the moving block 5, the limiting ring 601 is set at the insertion point of the threaded rod 6 and the fixed seat 1, and the handle 7 is set at the end of the threaded rod 6 away from the fixed seat 1.

[0044] Specifically, the throttle 7 is used to assist the rotation of the threaded rod 6, the limiting ring 601 is used to limit the threaded rod 6 and the moving block 5, the throttle 7 and the threaded rod 6 are fixed by welding, the limiting ring 601 and the threaded rod 6 are fixed by welding, the moving block 5 has a rotating groove on its side, the limiting ring 601 can rotate in the rotating groove, and the fixed seat 1 has a threaded hole on its side that matches the threaded rod 6.

[0045] The limiting part includes: positioning plate 2, circuit board slot 201 and locking component;

[0046] It should be noted that multiple positioning plates 2 are respectively set on the side of the moving block 5 and the side of the fixed seat 1, multiple circuit board slots 201 are opened on the side of the positioning plate 2, and locking parts are set at the connection between the positioning plate 2, the moving block 5 and the fixed seat 1.

[0047] Specifically, the circuit board slot 201 is used for the insertion of circuit boards, and the locking component is used to fix the positioning plate 2. There are three circuit board slots 201, and the thicknesses of the circuit boards that can be inserted are 0.8mm, 1.0mm and 1.2mm respectively. The positioning plate 2 is made of rubber, and the edge of the circuit board contacts the inner wall of the circuit board slot 201. The flexible rubber flexibly compresses the edge of the circuit board.

[0048] It should be noted that the locking components include: a fixing screw 3 and a buffer structure;

[0049] Specifically, multiple fixing screws 3 are respectively inserted and connected at the connection between the positioning plate 2 and the moving block 5 and the connection between the positioning plate 2 and the fixed base 1. A buffer structure is set at the connection between the positioning plate 2 and the moving block 5. The buffer structure is used for the compression buffer of the positioning plate 2.

[0050] It should be noted that the side of the positioning plate 2 is provided with through holes for the insertion of fixing screws 3, and the side of the fixing seat 1 and the moving block 5 is provided with threaded grooves for the insertion of fixing screws 3.

[0051] Specifically, the buffer structure includes a flexible pad 4, which is disposed on the opposite side of the positioning plate 2 and the moving block 5.

[0052] It should be noted that the flexible pad 4 is made of silicone, and the side of the flexible pad 4 has through holes for the insertion of the fixing screw 3.

[0053] Example 2: A mounting component applied to the circuit board assembly test fixture in Example 1;

[0054] Specifically, the mounting components include mounting rings 8, with multiple mounting rings 8 disposed on the side of the fixing base 1, and the mounting rings 8 are used for mounting and fixing the fixing base 1;

[0055] It should be noted that the mounting ring 8 and the fixing seat 1 are fixed by welding. The top of the mounting ring 8 has a hole for bolt insertion and fixing.

[0056] In actual use, a movable component is provided on the top of the fixed base 1. The operator rotates the handle 7 to drive the threaded rod 6 to rotate, thereby moving the movable stop 5 on the top of the fixed base 1. The movable stop 5 and the limiting part provided on the side of the fixed base 1 are used to limit and fix the circuit board, limiting the edge of the circuit board in the circuit board slot 201. Compared with using a clamp to directly hold the circuit board, this design squeezes and fixes the circuit board edge, avoiding clamping damage to the solder joints on the surface of the circuit board during the clamping process, which would affect the testing of the circuit board assembly.

[0057] 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 circuit board assembly testing fixture, characterized in that, include: Fixed base (1); A movable component is used to squeeze and limit the circuit board. The movable component includes a movable stop (5) that is inserted and connected to the top of the fixed base (1). A sliding part for limiting the movable stop (5) is provided at the insertion point between the fixed base (1) and the movable stop (5). A rotating part for pushing the movable stop (5) is inserted and connected to the side of the fixed base (1). A limiting part for snapping the circuit board is provided on the side of the movable stop (5) and the fixed base (1). The mounting component is disposed on the side of the fixing base (1) and is used to fix the position of the fixing base (1).

2. The circuit board assembly testing fixture according to claim 1, characterized in that, The sliding part includes: The movable groove (101) is located at the intersection of the movable stop (5) and the fixed seat (1); A limiting slider (501) is disposed in the inner cavity of the movable groove (101), and the top of the limiting slider (501) is fixedly connected to the bottom of the movable stop (5).

3. The circuit board assembly testing fixture according to claim 1, characterized in that, The rotating part includes: The threaded rod (6) has its ends sequentially inserted and connected to the side of the fixed seat (1) and the side of the movable stop (5); A limiting ring (601) is provided at the intersection of the threaded rod (6) and the fixed seat (1). The limiting ring (601) is used to limit the threaded rod (6) and the moving block (5). A throttle (7) is provided at one end of the threaded rod (6) away from the fixed seat (1), and the throttle (7) is used to assist the rotation of the threaded rod (6).

4. A circuit board assembly testing fixture according to claim 1, characterized in that, The limiting part includes: Positioning plates (2), and multiple positioning plates (2) are respectively disposed on the side of the movable block (5) and the side of the fixed seat (1); Circuit board slots (201), a plurality of circuit board slots (201) are provided on the side of the positioning plate (2), and the circuit board slots (201) are used for the insertion of circuit boards; A locking element is provided at the connection between the positioning plate (2), the moving block (5), and the fixed seat (1), and the locking element is used to fix the positioning plate (2).

5. A circuit board assembly testing fixture according to claim 4, characterized in that, The locking element includes: Fixing screws (3), a plurality of fixing screws (3) are respectively inserted and connected at the connection between the positioning plate (2) and the moving block (5) and the connection between the positioning plate (2) and the fixed seat (1); A buffer structure is provided at the connection between the positioning plate (2) and the moving block (5), and the buffer structure is used for the compression buffer of the positioning plate (2).

6. A circuit board assembly testing fixture according to claim 5, characterized in that, The buffer structure includes a flexible pad (4), which is disposed on the opposite side of the positioning plate (2) and the moving block (5).

7. A circuit board assembly testing fixture according to claim 1, characterized in that, The mounting assembly includes mounting rings (8), and a plurality of mounting rings (8) are disposed on the side of the fixing seat (1). The mounting rings (8) are used for mounting and fixing the fixing seat (1).

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