Circuit board test tool clamp

Abstract

The utility model relates to the technical field of circuit board clamps, in particular to a circuit board test tool clamp which comprises a base, a cavity is formed in the end face of the base, and a bearing plate is rotationally connected to the center point of the cavity. The base and the bearing plate are fixed through a fixing assembly, and an elastic piece used for driving the side edge of the bearing plate to tilt is further arranged at the bottom of the base. Wherein a through groove is formed in the end face of the bearing plate, clamping assemblies are arranged on the two sides of the through groove, the clamping assemblies are used for fixing the circuit board and fixing the circuit board on the bearing plate, and the through groove is used for detecting whether components and soldering tin points on the two sides of the circuit board are good or bad in the mode that the bearing plate is turned over. And after the bearing plate is unlocked, the side edge of the bearing plate is upwarped under the support of a pressure spring and a top block, so that the circuit board can be conveniently overturned to change the surface, and the two sides of the circuit board can be well detected under the condition that the clamping is firm.

Description

Technical Field

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

[0002] Circuit board test fixtures are devices used to perform functional and performance tests on printed circuit boards during the production of electronic products. These fixtures clamp and secure the circuit boards, and work with testing tools to ensure that the circuit boards can function normally according to design requirements after assembly.

[0003] In order to facilitate performance testing of circuit boards, it is necessary to use a circuit board testing fixture to fix the circuit boards. For example, the prior art Chinese patent publication number "CN206578411U" discloses a circuit board welding fixture, which includes a bracket, the middle part of which is rotatably connected to an adapter plate via a rotating shaft, a handle fixedly installed on the upper left side of the adapter plate, a flexible pad fixedly installed on the right side of the adapter plate, pin holes provided at the four corners of the adapter plate, a circuit board movably mounted in the right inner cavity of the bracket via an adapter pin, the adapter pin including a shell, a spring leaf movably mounted on the left side of the inner cavity of the shell, a limit ring fixedly connected to the outer side of the right end of the shell, a button movably connected to the inner cavity of the right end of the shell, and a thimble fixedly mounted in the inner cavity of the button. The utility model has a simple structure and is convenient and practical.

[0004] In actual operation, although both sides of the circuit board can be observed and inspected by flipping the adapter plate, after inspecting one side of the circuit board, it is necessary to unlock and flip the adapter plate to inspect the other side. Repeated unlocking and fixing of the circuit board affects the inspection efficiency. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art that the circuit board is repeatedly unlocked and fixed, which affects the detection efficiency, and to propose a circuit board testing fixture.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A circuit board testing fixture is designed, comprising a base, an end surface of the base having a cavity, and a receiving plate rotatably connected to the center point of the cavity. The base and the receiving plate are fixed by a fixing assembly, and an elastic member is provided at the bottom for driving the side edge of the receiving plate to tilt up.

[0008] A through slot is provided on the end surface of the receiving plate, and clamping components are provided on both sides of the through slot, and the clamping components are used to fix the circuit board.

[0009] Furthermore, the fixing assembly includes a card block, and the card blocks are slidably connected to both sides of the base through a slide groove. A stop block is fixed at the opening of the slide groove, and a first spring is fixedly connected between its inner side and the card block. A slot is provided on the side of the receiving plate away from the rotating shaft, and the slot is engaged with the card block.

[0010] Furthermore, the elastic member includes a compression spring and a top block, the inner bottom surface of the base is provided with a slide groove, and it is located in the slide groove and movably connected to the top block through the compression spring, and the side of the receiving plate close to the rotating shaft contacts the top block.

[0011] Furthermore, the receiving plate is located at the opening side of the through slot and extends inward to form a step portion, and the circuit board is arranged in the through slot and contacts the step portion.

[0012] Furthermore, the clamping assembly includes a pressure plate, the receiving plate is located on one side of the through slot and a pair of guide rods are fixed thereon, the other ends of the pair of guide rods are slidably connected to the pressure plate and are sleeved with a second spring, and soft pads and lifting parts are respectively provided on both sides of the pressure plate.

[0013] Furthermore, it also includes an extension part. The receiving plate has the extension part at the opening on the other side of the through groove. A receiving groove is formed between the extension part and the step part. The circuit board is arranged in the receiving groove and is pressed by the pressing plate.

[0014] The utility model proposes a circuit board testing fixture, which has the following beneficial effects: the utility model fixes the circuit board on the receiving plate through a fixing component, and uses the through groove to detect the quality of the components and solder joints on both sides of the circuit board by flipping the receiving plate, and after the receiving plate is unlocked, the side of the receiving plate is tilted up under the support of the compression spring and the top block, which is convenient for flipping to change the surface of the circuit board. In this way, both sides of the circuit board can be well tested while ensuring firm clamping, which is beneficial to speeding up the production efficiency of the circuit board and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of area A;

[0017] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of area B;

[0018] Figure 4 It is an enlarged cross-sectional view of the elastic member of the present invention.

[0019] In the figure: 1. Base; 11. Cavity; 2. Receiving plate; 21. Through groove; 22. Step portion; 3. Fixing assembly; 31. Block; 32. Slide groove; 33. First spring; 34. Notch; 4. Elastic member; 41. Compression spring; 42. Top block; 5. Clamping assembly; 51. Pressure plate; 52. Guide rod; 53. Second spring; 54. Extension portion. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-4 A circuit board testing fixture comprises a base 1, wherein the end surface of the base 1 has a cavity 11, and a receiving plate 2 is rotatably connected to the center point of the cavity 11. The base 1 and the receiving plate 2 are fixed by a fixing assembly 3, and an elastic member 4 is further provided at the bottom for driving the side edge of the receiving plate 2 to tilt up;

[0022] A through slot 21 is formed on the end surface of the receiving plate 2 , and clamping components 5 are provided on both sides of the through slot 21 . The clamping components 5 are used to fix the circuit board.

[0023] It should be added that the base 1 is a rectangular structure, and is further provided with a support portion at the corner of the inner bottom surface, which provides support for the receiving plate 2 in a horizontal state, that is, a space is left between the axial end of the receiving plate 2 and the inner bottom surface of the base 1, and the space provides an accommodation space for the clamping assembly 5, wherein the end surface of the support portion is provided with a reserved groove that passes through the base 1, so as to facilitate the fixing of the base 1;

[0024] In addition, by turning over the receiving plate 2, the components and solder joints on both sides of the circuit board can be observed and inspected using the through slots 21, thereby avoiding repeated unlocking and fixing of the circuit board to affect the inspection efficiency.

[0025] Furthermore, the fixing assembly 3 includes a card block 31, and the card block 31 is slidably connected to both sides of the base 1 through a slide groove 32. The slide groove 32 is located at the opening and fixed with a stop block, and a first spring 33 is fixedly connected between its inner side and the card block 31. The side of the receiving plate 2 away from the rotating shaft is provided with a slot 34, and the slot 34 is engaged with the card block 31.

[0026] Specifically, the notches 34 are provided on both sides of the receiving plate 2 away from the rotating shaft. The first spring 33 provides elastic support for the clamping block 31 to achieve the function of engaging the notches 34 to fix the receiving plate 2. The stop block prevents the clamping block 31 from falling off the sliding groove 32.

[0027] The top of the slide groove 32 passes through the base 1 to form a slide groove, and the top of the block 31 has a protrusion, the surface of the protrusion is provided with anti-slip grooves and slides in the slide groove.

[0028] Furthermore, the elastic member 4 includes a compression spring 41 and a top block 42. The inner bottom surface of the base 1 is provided with a slide groove, and it is located in the slide groove and is movably connected to the top block 42 through the compression spring 41. The side of the receiving plate 2 close to the rotating shaft contacts the top block 42.

[0029] In more detail, the receiving plate 2 is located at the opening side of the through slot 21 and extends inward to form a step portion 22 . The circuit board is disposed in the through slot 21 and contacts the step portion 22 .

[0030] In general, the clamping assembly 5 includes a pressure plate 51, and the receiving plate 2 is fixed with a pair of guide rods 52 on one side of the through groove 21. The other ends of the pair of guide rods 52 are slidably connected to the pressure plate 51 and are sleeved with a second spring 53. Soft pads and lifting parts are respectively provided on both sides of the pressure plate 51.

[0031] Finally, an extension portion 54 is also included. The receiving plate 2 has the extension portion 54 at the opening on the other side of the through groove 21. A receiving groove is formed between the extension portion 54 and the step portion 22. The circuit board is arranged in the receiving groove and is pressed by the pressing plate 51.

[0032] It should be noted that a limiting protrusion is provided at the other end of the guide rod 52, and the two ends of the second spring 53 respectively abut the limiting protrusion and the pressure plate 51, and the pressure plate 51 matches the length of the step portion 22 to ensure that the pressure plate 51 clamps the circuit board under the elastic support of the second spring 53.

[0033] In addition, the extension portion 54 is shorter than the step portion 22 to facilitate the insertion of the circuit board. Under normal circumstances, one side of the circuit board is fixed by the extension portion 54 and the step portion 22, and the other side is clamped by the pressure plate 51 to achieve a fixed effect.

[0034] Working mode; When working, the circuit board is arranged in the through groove 21 and abuts the step portion 22, and one side of the circuit board is inserted between the extension portion 54 and the step portion 22, and the other side is fixed by the pressure plate 51 under the elastic support of the second spring 53;

[0035] One side of the circuit board is inspected through the through slot 21. When the other side needs to be inspected, the clamping block 31 is pushed, and the unfixed receiving plate 2 is lifted up by the ejection action of the compression spring 41 and the ejecting block 42, which makes it easier to rotate the receiving plate 2.

[0036] Finally, the receiving plate 2 is fixed by the clamping block 31 on the other side, and the other side of the circuit board can be tested.

[0037] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A circuit board testing fixture, comprising a base (1), characterized in that: The end surface of the base (1) has a cavity (11), and a receiving plate (2) is rotatably connected to the center point of the cavity (11); the base (1) and the receiving plate (2) are fixed by a fixing assembly (3), and an elastic member (4) is also provided at the bottom thereof for driving the side of the receiving plate (2) to tilt up; A through slot (21) is provided on the end surface of the receiving plate (2), and clamping assemblies (5) are provided on both sides of the through slot (21), and the clamping assemblies (5) are used to fix the circuit board.

2. A circuit board testing fixture according to claim 1, characterized in that: The fixing assembly (3) includes a clamping block (31), and the two sides of the base (1) are slidably connected to the clamping block (31) through a sliding groove (32). A stop block is fixed at the opening of the sliding groove (32), and a first spring (33) is fixedly connected between the inner side surface of the stop block and the clamping block (31). A notch (34) is provided on the side of the receiving plate (2) away from the rotating shaft, and the notch (34) is engaged with the clamping block (31).

3. The circuit board testing fixture according to claim 1, characterized in that: The elastic member (4) includes a compression spring (41) and a top block (42); the inner bottom surface of the base (1) is provided with a slide groove, and the base (1) is located in the slide groove and is movably connected to the top block (42) through the compression spring (41); the side of the receiving plate (2) close to the rotating shaft contacts the top block (42).

4. The circuit board testing fixture according to claim 1, characterized in that: The receiving plate (2) is located on the opening side of the through slot (21) and extends inward to form a step portion (22); the circuit board is arranged in the through slot (21) and contacts the step portion (22).

5. The circuit board testing fixture according to claim 4, characterized in that: The clamping assembly (5) includes a pressure plate (51), and the receiving plate (2) is fixed with a pair of guide rods (52) on one side of the through groove (21). The other ends of the pair of guide rods (52) are slidably connected to the pressure plate (51) and are sleeved with a second spring (53). Soft pads and lifting parts are respectively provided on both sides of the pressure plate (51).

6. The circuit board testing fixture according to claim 5, characterized in that: The receiving plate (2) further comprises an extension portion (54), wherein the receiving plate (2) has the extension portion (54) at the opening on the other side of the through groove (21), and an accommodating groove is formed between the extension portion (54) and the step portion (22), and the circuit board is arranged in the accommodating groove and is pressed by the pressing plate (51).

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