Circuit board tester

Abstract

This invention discloses a circuit board testing instrument, including a testing instrument body with a testing groove, and a clamping and limiting mechanism. The clamping and limiting mechanism includes an electric push rod, a connecting arm, and a limiting component. The limiting component includes a support block, a drive rod, and a limiting block. The electric push rod is installed on the outer wall of the testing instrument body and located above the testing groove. Two connecting arms are symmetrically arranged on both sides of the electric push rod. The first end of the connecting arm is hinged to the electric push rod, and the second end of the connecting arm is connected to the first end of the drive rod. The support block is fixedly connected to the outer wall of the testing instrument body and has a sliding hole. The drive rod passes through the sliding hole, and the second end of the drive rod is connected to the limiting block. The electric push rod is used to drive the connecting arm to move so that the connecting arm drives the drive rod to move along the sliding hole, so that the limiting block clamps or releases the circuit board, thereby providing auxiliary fixation for the circuit board, improving the stability and accuracy of the circuit board testing.

Description

Technical Field

[0001] This invention relates to circuit board testing technology, and more particularly to a circuit board testing instrument. Background Technology

[0002] Circuit boards are used to expand the functions of computer hardware. Nuclear power plant control and operation platforms have a large number of circuit boards. These circuit boards need to be tested to ensure that they can be used normally. The testing method usually involves inserting the circuit board into the test slot of a circuit board testing instrument for testing.

[0003] Due to issues with the size of some circuit boards, such as the circuit board being smaller than the size of the testing slot, the circuit board may become loose or wobble when installed in the testing slot, which will affect the testing results. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a circuit board testing instrument.

[0005] The technical solution adopted by the present invention to solve its technical problem is as follows: a circuit board tester is constructed, including a tester body, the tester body having a test slot for circuit board insertion, the circuit board tester further including a clamping and limiting mechanism, the clamping and limiting mechanism including an electric push rod, two connecting arms and two limiting components, the two limiting components being respectively disposed on the outer side wall of the tester body on both sides of the length direction of the test slot, each limiting component including a support block, a drive rod and a limiting block, the electric push rod being installed on the outer side wall of the tester body and located above the test slot, the two connecting arms being symmetrically arranged on both sides of the electric push rod, the first end of the connecting arm being hinged to the electric push rod, and the second end of the connecting arm being connected to the first end of the drive rod;

[0006] The support block is fixedly connected to the outer side wall of the detector body. The support block is provided with a sliding hole. The drive rod passes through the sliding hole. The second end of the drive rod is connected to the limiting block. The electric push rod is used to drive the connecting arm to move so that the connecting arm drives the drive rod to move along the sliding hole, so that the limiting block clamps or releases the plate.

[0007] In some embodiments, the outer sidewalls of the detector body are provided with elastic components on both sides of the detection groove along its length and at the lower part of the detection groove. The elastic components include a spring and a baffle. The first axial end of the spring is connected to the outer sidewall of the detector body, and the second axial end of the spring is connected to the baffle. The baffle is used to abut against the bottom surface of the board.

[0008] In some embodiments, a pre-fixing component is provided on the outer side wall of the detector body at the lower part of the detection groove;

[0009] The pre-fixing assembly includes a fixing rod, a fixing block, and a suction cup. The first axial end of the fixing rod is connected to the outer side wall of the detector body, and the second axial end of the fixing rod is connected to the fixing block through the suction cup.

[0010] In some embodiments, the suction cup is provided with an air vent, the fixing rod is provided with a cavity, a slider is provided inside the cavity, the slider is connected to a pull rope, one end of the pull rope passes through the cavity, and the end of the pull rope located outside the cavity is provided with a hook;

[0011] The fixed rod is provided with a hanging ring for the hook to attach to.

[0012] In some embodiments, the end of the hook is provided with a fixing ball, and the side wall of the hanging ring is provided with at least a pair of elastic pieces for limiting the fixing ball.

[0013] In some embodiments, the inner cavity of the suction cup is provided with a spring rod, one end of which is connected to the end of the fixing rod, and the other end of which is connected to a pair of elastic bands. One end of the elastic bands is connected to the inner sidewall of the suction cup, and a first cleaning brush is provided on the elastic bands.

[0014] In some embodiments, the upper and lower sidewalls of the detection groove are further provided with elastic mounting brackets; the elastic mounting brackets include a plurality of elastic plates connected to each other, and a plurality of second cleaning brushes connected to the elastic plates.

[0015] In some embodiments, the elastic mounting bracket further includes an elastic rod connected to the elastic plate, and rubber balls are respectively provided at both ends of the elastic rod along its length.

[0016] In some embodiments, the outer side wall of the detector body is provided with slide rails on the upper and lower sides of the detection groove, and the slide rails are slidably connected with guide blocks, and elastic pads are provided between the guide blocks and the slide rails.

[0017] The guide block and the elastic mounting bracket are connected by a connecting plate.

[0018] In some embodiments, the board tester further includes a support plate, the lower end of which is connected to the outer side wall of the tester body, and the upper end of which is magnetically fixed to the outer side wall of the tester body.

[0019] The present invention has the following advantages: the circuit board detector is equipped with a clamping and limiting mechanism that can clamp or release the circuit board to assist in fixing the circuit board, thereby improving the stability and accuracy of the circuit board detection. Attached Figure Description

[0020] To more clearly illustrate the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings:

[0021] Figure 1 These are schematic diagrams of the board testing instrument in some embodiments of the present invention;

[0022] Figure 2 These are detailed schematic diagrams of the board testing instrument in some embodiments of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the pre-fixed component in some embodiments of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the elastic mounting bracket in some embodiments of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the support plate in some embodiments of the present invention. Detailed Implementation

[0026] To provide a clearer understanding of the technical features, objectives, and effects of this invention, specific embodiments are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or element referred to must have a specific orientation; therefore, they should not be construed as limitations on this invention.

[0027] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "linking," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0028] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the invention with unnecessary detail.

[0029] See Figure 1 and Figure 2 This invention discloses a circuit board testing instrument, including a testing instrument body 10, which has a testing slot 11 for inserting circuit boards 100. The circuit board testing instrument also includes a clamping and limiting mechanism 20, which includes an electric push rod 21, two connecting arms 22, and two limiting components 23. The two limiting components 23 are respectively disposed on the outer side wall of the testing instrument body 10 on both sides of the testing slot 11 along its length. Each limiting component 23 includes a support block 231, a drive rod 232, and a limiting block 233. The electric push rod 21 is installed on the outer side wall of the testing instrument body 10 and is located above the testing slot 11. The two connecting arms 22 are symmetrically arranged on both sides of the electric push rod 21. The first end of the connecting arm 22 is hinged to the electric push rod 21, and the second end of the connecting arm 22 is connected to the first end of the drive rod 232.

[0030] The support block 231 is fixedly connected to the outer wall of the detector body 10. The support block 231 is provided with a sliding hole, and the drive rod 232 passes through the sliding hole. The second end of the drive rod 232 is connected to the limiting block 233. The electric push rod 21 is used to drive the connecting arm 22 to move so that the connecting arm 22 drives the drive rod 232 to move along the sliding hole, so that the limiting block 233 clamps or releases the board 100, thereby providing auxiliary fixation for the board 10, improving the detection stability of the board 100, and improving the detection accuracy of the board 100.

[0031] In some embodiments, elastic components 30 are respectively provided on both sides of the outer side wall of the detector body 10 along the length direction of the detection groove 11 and at the lower part of the detection groove 11. Each elastic component 30 includes a spring 31 and a baffle 32. The first axial end of the spring 31 is connected to the outer side wall of the detector body 10, and the second axial end of the spring 31 is connected to the baffle 32. The baffle 32 is used to abut against the bottom surface of the plate 100. After the plate 100 is tested, the clamping and limiting mechanism 20 releases the plate 100. At this time, the baffle 32 will move outward under the action of the spring 31 to assist in pushing out the plate 100, so that the plate 100 can be easily grasped and removed from the detection groove 11 by the operator. Of course, the elastic component 30 may not be provided.

[0032] Combination Figure 1 and Figure 3 In some embodiments, a pre-fixing component 40 is provided on the outer side wall of the detector body 10 at the lower position of the detection groove 11.

[0033] The pre-fixing assembly 40 includes a fixing rod 41, a fixing block 42, and a suction cup 43. The first axial end of the fixing rod 41 is connected to the outer wall of the detector body 10, and the second axial end of the fixing rod 41 is connected to the fixing block 42 via the suction cup 43. The fixing block 42 can be positioned opposite the detection slot 11, so that when the circuit board 100 is placed in the detection slot 11, the fixing block 42 can limit its movement against the outer surface of the circuit board 100, preventing the circuit board 100 from accidentally detaching from the detection slot 11, thus providing pre-fixation and protection. Of course, when the size of the circuit board 100 to be tested is appropriate, the pre-fixing assembly 40 may not be required; no specific limitation is made here.

[0034] like Figure 3 As shown, in some embodiments, the suction cup 43 is provided with an air vent, the fixing rod 41 is provided with a cavity 411, the cavity 411 is provided with a slider 412, the slider 412 is connected to a pull rope 413, one end of the pull rope 413 passes through the cavity 411, and the end of the pull rope 413 located outside the cavity 411 is provided with a hook 414, and the fixing rod 41 is provided with a hanging ring 415 for the hook 414 to be attached.

[0035] In use, after inserting the plate 100 into the detection slot 11, before the clamping and limiting mechanism 20 clamps and fixes the plate 100, the fixing block 42 and the suction cup 43 can be fully attached. The suction cup 43 can generate a certain adsorption force on the fixing block 42 to pre-fix the plate 100. At the same time, the hook 414 can be pulled, causing the pull rope 413 to drive the slider 412 to slide on the side wall of the cavity 411. This can adsorb the gas between the fixing block 42 and the suction cup 43 into the cavity 411, thereby increasing the suction force of the suction cup 43. Then, the hook 414 is hooked onto the hanging ring 415. The slider 412 can increase the suction force of the suction cup 43 and reduce the likelihood of the suction cup 43 falling off the side wall of the fixing block 42 during long-term use.

[0036] like Figure 3 As shown, in some embodiments, the end of the hook 414 is provided with a fixing ball 416, and the side wall of the hanging ring 415 is provided with at least a pair of elastic pieces 417 for limiting the fixing ball 416. Preferably, a pair of elastic pieces 417 are symmetrically fixed to the side wall of the hanging ring 415. In use, when the hook 414 is hooked onto the side wall of the hanging ring 415, the hook 414 can push the elastic pieces 417 open. After the fixing ball 416 passes through the elastic piece 417, it can automatically reset under the elastic action of the elastic piece 417, so that the elastic piece 417 abuts against the side wall of the fixing ball 416. In this process, by the elastic piece 417 abutting against the fixing ball 416, the hook 414 can play a role in preventing the hook from falling off after hooking the hanging ring 415, improving the fixing effect of the hook 414 on the side wall of the hanging ring 415, and reducing the likelihood of the hook 414 slipping off the side wall of the hanging ring 415 under the action of external force. Of course, in some embodiments, the fixed ball 416 and the elastic sheet 417 may not be provided, and this is not a limitation.

[0037] like Figure 3As shown, in some embodiments, the inner cavity of the suction cup 43 is provided with a spring rod 431. One end of the spring rod 431 is connected to the end of the fixing rod 41, and the other end of the spring rod 431 is connected to a pair of elastic bands 432. The elastic bands 432 are symmetrically arranged on both sides of the spring rod 431 and have the same structure. One end of the elastic band 432 is connected to the inner sidewall of the suction cup 43, and a first cleaning brush 433 is provided on the elastic band 432. In use, when the fixing block 42 approaches the side wall of the suction cup 43, the fixing block 42 first compresses the spring rod 431. When the spring rod 431 retracts into the suction cup 43, it drives the elastic bands 432 on both sides to move into the suction cup 43. At this time, the first cleaning brush 433 will contact the side wall of the suction cup 43 and clean the side wall of the suction cup 43. During this process, the first cleaning brush 433 sweeps away the dust and impurities attached to the side wall of the suction cup 43, which can increase the full adhesion between the suction cup 43 and the fixing block 42, improve the adsorption effect of the suction cup 43, and reduce some dust and impurities blocking the suction cup 43 and the fixing block 42, thereby affecting the adsorption effect of the suction cup 43. Of course, in some embodiments, this structure may not be provided. The structure can be selected and set according to actual needs, and no specific limitation is made here. In addition, in some embodiments, the fixing block 42 can also be connected by vacuum adsorption. This is only a preferred embodiment and no specific limitation is made.

[0038] like Figure 4 As shown, in some embodiments, the upper and lower sidewalls of the detection groove 11 are further provided with elastic mounting brackets 50. The elastic mounting brackets 50 include a plurality of elastic plates 51 connected to each other, and a plurality of second cleaning brushes 52 connected to the elastic plates 51. The elastic plates 51 may be silicone plates, rubber plates, or other elastic materials.

[0039] In use, when the board 100 is inserted into the detection slot 11, the board 100 will contact and press against the elastic plate 51. The elastic plate 51 will not damage the board 100. At this time, the elasticity of the elastic plate 51 will apply a certain reaction force to the board 100. At the same time, the elastic plate 51 will also slide towards the middle of the two elastic plates 51. As the board 100 slides into the detection slot 11, the second cleaning brush 52 can contact the side wall of the board 100. The second cleaning brush 52 can clean the side of the board 100. During the cleaning process, the elastic plate 51 serves to limit the insertion of the card 100 into the detection slot 11, improving the ease of insertion. Simultaneously, the second cleaning brush 52 cleans dust and impurities adhering to the sidewalls of the card 100, reducing the likelihood of dust and impurities entering the instrument body 10. Afterwards, the elastic mounting bracket 50 can be vacuumed away. Of course, the impurities within the elastic mounting bracket 50 are usually trace and will not affect the instrument. Alternatively, in some embodiments, the elastic mounting bracket 50 may not be provided, and the outer surface of the card 100 can be cleaned by personnel before the detection process.

[0040] In some embodiments, the elastic mounting bracket 50 further includes an elastic rod 53, which is connected to the elastic plate 51, and rubber balls 54 are respectively provided at both ends of the elastic rod 53 in the length direction.

[0041] like Figure 4 As shown, during use, when the board 100 is inserted into the detection slot 11, the board 100 will rub against the rubber ball 54. Under the action of the friction generated by the contact between the two, the board 100 will drive the rubber ball 54 to move, causing the elastic rod 53 to deform to a certain extent. When the board 100 is pulled out of the detection slot 11, and the board 100 is separated from the rubber ball 54, the elasticity of the elastic rod 53 will drive the rubber ball 54 to swing, thereby generating a certain vibration effect. The vibration effect can shake off the dust and impurities attached to the side wall of the second cleaning brush 52. In this process, the vibration effect generated by the swing of the rubber ball 54 can clean the dust and impurities attached to the side wall of the second cleaning brush 52, improve the subsequent cleaning effect of the second cleaning brush 52, and reduce the inconvenience of cleaning the dust and impurities attached to the side wall of the second cleaning brush 52 after long-term use, thus reducing the impact on the use effect of the second cleaning brush 52. Of course, in some embodiments, the elastic rod 53 and the rubber ball 54 may not be provided, and the outer surface of the board 100 may be cleaned by the staff before the testing process.

[0042] like Figure 4As shown, in some embodiments, the outer side wall of the detector body 10 is provided with slide rails 60 on the upper and lower sides of the detection groove 11, respectively. The slide rail 60 is slidably connected to the slide groove of the slide rail 60, and an elastic pad 62 is provided between the guide block 61 and the slide groove of the slide rail 60. The guide block 61 is connected to the elastic mounting bracket 50 through a connecting plate 63. The connecting plate 63 may be approximately L-shaped.

[0043] Combination Figure 1 and Figure 5 As shown, in some embodiments, the board detector further includes a support plate 70. The lower end of the support plate 70 is connected to the outer wall of the detector body 10, and the upper end of the support plate 70 is magnetically fixed to the outer wall of the detector body 10. For example, the outer wall of the detector body 10 may be provided with a first magnet 12. The lower end of the support plate 70 may be rotatably connected to the outer wall of the detector body 10 via a rotating shaft seat or the like. The upper end of the support plate 70 may be provided with a second magnet 71, which is magnetically fixed to the first magnet 12. When it is necessary to temporarily store the board 100, the support plate 70 can be opened and the board 100 can be placed on the support plate 70. Of course, a storage frame or storage basket may also be provided on the detector body 10, which is not specifically limited here.

[0044] In some embodiments, the board tester may further include a computer / industrial control computer 80 connected to the tester body 10.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0046] It is understood that the above embodiments only illustrate preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can freely combine the above technical features without departing from the concept of the present invention, and can also make several modifications and improvements, all of which fall within the protection scope of the present invention. Therefore, all equivalent transformations and modifications made with respect to the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. A circuit board testing instrument, comprising a testing instrument body (10), wherein the testing instrument body (10) is provided with a testing slot (11) for inserting circuit boards (100), characterized in that, The board tester also includes a clamping and limiting mechanism (20), which includes an electric push rod (21), two connecting arms (22) and two limiting components (23). The two limiting components (23) are respectively disposed on the outer side wall of the tester body (10) and located on both sides of the length direction of the test groove (11). Each limiting component (23) includes a support block (231), a drive rod (232) and a limiting block (233). The electric push rod (21) is installed on the outer side wall of the tester body (10) and located above the test groove (11). The two connecting arms (22) are symmetrically arranged on both sides of the electric push rod (21). The first end of the connecting arm (22) is hinged to the electric push rod (21), and the second end of the connecting arm (22) is connected to the first end of the drive rod (232). The support block (231) is fixedly connected to the outer wall of the detector body (10). The support block (231) is provided with a sliding hole. The drive rod (232) passes through the sliding hole. The second end of the drive rod (232) is connected to the limiting block (233). The electric push rod (21) is used to drive the connecting arm (22) to move so that the connecting arm (22) drives the drive rod (232) to move along the sliding hole, so that the limiting block (233) clamps the plate (100) or releases the plate (100). The outer side wall of the detector body (10) is located on both sides of the detection groove (11) along its length and at the lower part of the detection groove (11), and is provided with elastic components (30). The elastic components (30) include a spring (31) and a baffle (32). The first axial end of the spring (31) is connected to the outer side wall of the detector body (10), and the second axial end of the spring (31) is connected to the baffle (32). The baffle (32) is used to abut against the bottom surface of the plate (100).

2. The circuit board testing instrument according to claim 1, characterized in that, The outer side wall of the detector body (10) is provided with a pre-fixing component (40) located at the lower part of the detection groove (11). The pre-fixing assembly (40) includes a fixing rod (41), a fixing block (42), and a suction cup (43). The first axial end of the fixing rod (41) is connected to the outer side wall of the detector body (10), and the second axial end of the fixing rod (41) is connected to the fixing block (42) through the suction cup (43).

3. The circuit board testing instrument according to claim 2, characterized in that, The suction cup (43) is provided with an air vent, the fixing rod (41) is provided with a cavity (411), a slider (412) is provided in the cavity (411), the slider (412) is connected to a pull rope (413), one end of the pull rope (413) passes through the cavity (411), and the end of the pull rope (413) located outside the cavity (411) is provided with a hook (414). The fixing rod (41) is provided with a hanging ring (415) for the hook (414) to be attached.

4. The circuit board testing instrument according to claim 3, characterized in that, The end of the hook (414) is provided with a fixed ball (416), and the side wall of the hanging ring (415) is provided with at least a pair of elastic pieces (417) for limiting the fixed ball (416).

5. The circuit board testing instrument according to claim 3, characterized in that, The suction cup (43) has a spring rod (431) in its inner cavity. One end of the spring rod (431) is connected to the end of the fixing rod (41), and the other end of the spring rod (431) is connected to a pair of elastic bands (432). One end of the elastic bands (432) is connected to the inner wall of the suction cup (43), and a first cleaning brush (433) is provided on the elastic bands (432).

6. The circuit board testing instrument according to claim 1, characterized in that, The upper and lower side walls of the detection groove (11) are also provided with elastic mounting brackets (50); the elastic mounting brackets (50) include a number of elastic plates (51) connected to each other, and a number of second cleaning brushes (52) connected to the elastic plates (51).

7. The circuit board testing instrument according to claim 6, characterized in that, The elastic mounting bracket (50) also includes an elastic rod (53), which is connected to the elastic plate (51), and rubber balls (54) are respectively provided at both ends of the elastic rod (53) in the length direction.

8. The circuit board testing instrument according to claim 7, characterized in that, The outer side wall of the detector body (10) is provided with slide rails (60) on the upper and lower sides of the detection groove (11). The slide rail (60) is slidably connected to the slide block (61), and an elastic pad (62) is provided between the guide block (61) and the slide rail (60). The guide block (61) is connected to the elastic mounting bracket (50) via a connecting plate (63).

9. The circuit board testing instrument according to claim 1, characterized in that, The board tester also includes a support plate (70), the lower end of which is connected to the outer wall of the tester body (10), and the upper end of which is magnetically fixed to the outer wall of the tester body (10).

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