A PCBA board testing device

Abstract

The application belongs to the technical field of PCBA board testing equipment, and particularly relates to a PCBA board testing device. The existing PCBA board testing device needs manual testing, has high labor intensity, low efficiency, and cannot conveniently automatically test PCBA boards of different sizes. The following scheme is proposed, which comprises a bottom plate, a rotating disc rotatably connected to the top end of the bottom plate through a connecting shaft, adjustable positioning mechanisms installed around the top end of the rotating disc, an inverted L-shaped vertical plate fixed to the top end of the bottom plate on one side of the rotating disc, and a tester fixed to the top end of the bottom plate on one side of the inverted L-shaped vertical plate. The application is different from the prior art. The adjustable positioning mechanisms can conveniently position and install PCBA boards of different sizes, and can be positioned and installed in cooperation with the mounting holes around the PCBA boards, so that the PCBA boards can be in a flat and suspended state, and the flatness of the PCBA boards during positioning and installation is not affected by the protruding components at the bottom of the PCBA boards.

Description

Technical Field

[0001] This invention relates to the field of PCBA board testing equipment technology, specifically to a PCBA board testing device. Background Technology

[0002] PCBA board refers to printed circuit board, also known as printed circuit board or printed circuit board, often abbreviated as PCB. It is an important electronic component, serving as the support for electronic components and providing the connection for electronic component circuits. Because it is manufactured using electronic printing technology, it is called a "printed" circuit board.

[0003] Currently, testing PCBA boards require testing equipment. However, existing testing equipment typically involves manually placing the PCBA board into a test fixture and then manually inserting the test probes from the tester into the PCBA board's interface. This method significantly increases the labor intensity of manual testing and is inefficient. Furthermore, different test fixtures are required to test PCBA boards of different sizes, making the testing equipment inconvenient to use. Therefore, we propose a PCBA board testing device. Summary of the Invention

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

[0005] To achieve the above objectives, the present invention provides the following technical solution: a PCBA board testing device, comprising a base plate, a turntable rotatably connected to the top of the base plate via a connecting shaft, adjustable positioning mechanisms installed around the top of the turntable, an inverted L-shaped upright plate fixed to the top of the base plate on one side of the turntable, a tester fixed to the top of the base plate on one side of the inverted L-shaped upright plate, the tester being electrically connected to two test probes via wires, and a transmission mechanism connecting the base plate and the inverted L-shaped upright plate.

[0006] Preferably, the adjustable positioning mechanism includes a hollow plate fixed to the top of the turntable. Two symmetrically arranged sliders are slidably connected to both sides of the hollow plate. The vertical cross-section of the sliders is an "I" shape. Two symmetrically arranged movable columns slide inside the hollow plate. Both ends of the movable columns are connected to the corresponding sliders. Two symmetrically arranged sliding sleeves are slidably fitted on the outer sides of the two movable columns. The tester is a prior art device for testing PCBA boards, and its specific working principle will not be described in detail here.

[0007] As preferred, the top end of the sliding sleeve is fixedly connected with a moving rod, the outer side of the moving rod is fixedly connected with a bottom support, the top end of the hollow plate is penetrated through a inclined slot for the movement of the moving rod, the two side walls of the hollow plate are provided with sliding grooves matched with the two sliding blocks, one of the sliding grooves is rotatably connected with a bidirectional screw rod, the bidirectional screw rod is in screw transmission connection between the corresponding two sliding blocks, one end of the bidirectional screw rod extends to the outer side of the hollow plate and is fixedly connected with a rotating handle, the inclined slot is in communication with the inside of the hollow plate, and the inclined slot is in communication with the outside through the two sliding grooves.

[0008] As preferred, the inside of the moving rod is slidably connected with two movable blocks, the two ends of the movable block are hingedly connected with a hinge rod, the other end of the two hinge rods on the same side is hingedly connected with the same positioning strip, the two sides of the moving cavity are provided with movable cavities for the movement of the two hinge rods, the movable cavities are in communication with the moving cavity, the two movable blocks are in screw transmission connection with the same bidirectional screw rod two, the bidirectional screw rod two is rotatably connected in the moving cavity, the top end of the bidirectional screw rod two extends to the top of the moving rod and is fixedly connected with a rotating handle two, and the cross-sectional width of the moving cavity is greater than that of the movable cavity.

[0009] As preferred, the transmission mechanism comprises a driving motor fixedly connected to the top end of the bottom plate, the output shaft of the driving motor is fixedly connected with a bevel gear one, one side of the bevel gear one is meshingly connected with a bevel gear two, the bevel gear two is rotatably connected to the inverted L-shaped vertical plate through a transmission shaft, the other end of the transmission shaft is fixedly connected with a transmission disc, the surface of the transmission disc is hingedly connected with a push-pull rod, the top end of the push-pull rod is hingedly connected with a horizontal rod, the horizontal rod is movably sleeved on the outside of the inverted L-shaped rod, the inverted L-shaped rod is fixedly connected to the inverted L-shaped vertical plate, and the bevel gear one is rotated to rotate the transmission shaft connected with the bevel gear two and drive the transmission disc to rotate.

[0010] As preferred, the bottom end of the horizontal rod is further fixedly connected with a movable rod, the movable rod is movably inserted into the inverted L-shaped vertical plate, the bottom end of the movable rod is fixedly connected with a connecting plate, the outer side of the connecting plate is movably sleeved with two symmetrical movable sleeves, the movable sleeves are fixed to the connecting plate through hand screws, the test probe is fixed to the bottom end of the sliding sleeve, the movable sleeve is in screw connection between the hand screw, and the bottom end of the hand screw is tightly abutted with the top end of the connecting plate after the hand screw is locked.

[0011] As preferred, the output shaft extension of the driving motor is connected with the connecting shaft through an intermittent transmission mechanism, the intermittent transmission mechanism comprises a connecting disc fixedly connected to the outside of the output shaft extension of the driving motor, the top of the connecting disc movably abuts with an intermittent wheel, the intermittent wheel is fixedly connected to the outside of the connecting shaft, and the size of the connecting disc is greater than that of the intermittent wheel.

[0012] As preferred, the top end of the connecting disc is fixed with a stop disc, one side of the stop disc is provided with a transmission column fixed on the top end of the connecting disc, the stop disc is used for stopping the intermittent wheel, so as to avoid the intermittent wheel rotating continuously due to inertia, and affecting the test operation.

[0013] As preferred, the intermittent wheel is provided with a plurality of transmission channels matched with the transmission column, and an arc-shaped groove matched with the stop disc is arranged between every two transmission channels, and the transmission column is just separated from the transmission channel in the drawing.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] The present application is different from the prior art, and the adjustable positioning mechanism can conveniently position and install PCBA boards of different sizes, and can be positioned and installed in cooperation with the mounting holes around the PCBA board, so that the PCBA board can be in a flat and suspended state, avoiding the influence of the protruding components at the bottom of the PCBA board on the flatness during positioning and installation of the PCBA board, thereby making the device applicable to PCBA boards of different sizes for testing, which is convenient to use. Secondly, the transmission mechanism and the intermittent transmission mechanism can be used to test a plurality of PCBA boards positioned on the turntable in a pipeline manner, without manually plugging and unplugging the test probe on the PCBA board repeatedly, greatly reducing the labor intensity of manual operation, making the automatic level high during testing of the PCBA board, and the testing efficiency is high. A large number of identical PCBA boards can be tested in sequence, which meets the use requirement of PCBA board production testing. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the whole application;

[0017] Figure 2 It is a schematic structural diagram of part of the adjustable positioning mechanism of the application;

[0018] Figure 3 It is a schematic structural diagram of another part of the adjustable positioning mechanism of the application;

[0019] Figure 4 It is an enlarged schematic structural diagram of A.

[0020] In the figure: 1, bottom plate; 2, connecting shaft; 21, rotating disc; 3, adjustable positioning mechanism; 301, hollow plate; 302, sliding block; 303, moving column; 304, sliding sleeve; 305, moving rod; 306, bidirectional screw No.1; 307, bottom support; 308, movable block; 309, articulated rod; 310, positioning strip; 311, bidirectional screw No.2; 4, transmission mechanism; 401, driving motor; 402, bevel gear No.1; 403, bevel gear No.2; 404, transmission shaft; 405, transmission disc; 406, push-pull rod; 407, cross rod; 408, inverted L-shaped rod; 409, movable rod; 410, connecting plate; 411, movable sleeve; 412, hand screw; 5, inverted L-shaped vertical plate; 6, tester; 61, testing probe; 7, intermittent transmission mechanism; 701, intermittent wheel; 702, connecting disc; 703, stop disc; 704, transmission column. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0022] Please refer to Figures 1-4This invention provides a technical solution: a PCBA board testing device, including a base plate 1. A turntable 21 is rotatably connected to the top of the base plate 1 via a connecting shaft 2. An inverted L-shaped upright plate 5 fixed to the top of the base plate 1 is provided on one side of the turntable 21. A tester 6 is fixed to the top of the base plate 1 on one side of the inverted L-shaped upright plate 5. The tester 6 is electrically connected to two test probes 61 via wires. Adjustable positioning mechanisms 3 are installed around the top of the turntable 21. The adjustable positioning mechanism 3 includes a hollow plate 301 fixed to the top of the turntable 21. Sliding connections are made to both sides of the hollow plate 301. Two symmetrically arranged sliders 302 have an "I"-shaped vertical cross-section. Inside the hollow plate 301, two symmetrically arranged movable columns 303 slide, each end of which is connected to a corresponding slider 302. Two symmetrically arranged sliding sleeves 304 are slidably fitted onto the outer sides of each movable column 303. The tester 6 is a prior art device for testing PCBA boards; its specific working principle will not be detailed here. A movable rod 305 is fixedly connected to the top of each sliding sleeve 304, and a base support 307 is fixedly connected to the outer side of each movable rod 305. The hollow plate 301... The top of each component has a through-hole groove to facilitate the movement of the movable rod 305. Both sides of the hollow plate 301 have grooves that cooperate with two sliders 302. A double-acting lead screw 306 is rotatably connected within one of these grooves. The double-acting lead screw 306 is helically connected to the two corresponding sliders 302. One end of the double-acting lead screw 306 extends to the outside of the hollow plate 301 and is fixedly connected to a rotating handle. The groove is connected to the interior of the hollow plate 301 and to the outside via the two grooves. Two movable blocks 305 slide within the internal moving cavity of each movable rod 305. 8. Both ends of the movable block 308 are hinged with hinge rods 309. The other ends of the two hinge rods 309 on the same side are hinged with the same positioning strip 310. Both sides of the moving cavity are provided with movable cavities to facilitate the movement of the two hinge rods 309. The movable cavities are connected to the moving cavity. The two movable blocks 308 are connected to the same double-acting screw 311 by a screw drive. The double-acting screw 311 is rotatably connected in the moving cavity. The top end of the double-acting screw 311 extends to the top of the moving rod 305 and is fixedly connected with a rotating handle. The cross-sectional width of the moving cavity is greater than the cross-sectional width of the movable cavity.

[0023] Further, the bottom plate 1 is connected with the inverted L-shaped vertical plate 5 with a transmission mechanism 4, the transmission mechanism 4 includes a driving motor 401 fixed at the top end of the bottom plate 1, the output shaft of the driving motor 401 is fixed with a bevel gear one 402, one side of the bevel gear one 402 is meshed with a bevel gear two 403, the bevel gear two 403 is rotatably connected on the inverted L-shaped vertical plate 5 through a transmission shaft 404, the other end of the transmission shaft 404 is fixed with a transmission disc 405, the surface of the transmission disc 405 is hinged with a push-pull rod 406, the top end of the push-pull rod 406 is hinged with a cross rod 407, the cross rod 407 is movably sleeved with an active sleeve 411 outside the inverted L-shaped rod 408, the inverted L-shaped rod 408 is fixed on the inverted L-shaped vertical plate 5, the rotation of the bevel gear one 402 drives the transmission shaft 404 connected with the bevel gear two 403 to rotate, and drives the transmission disc 405 to rotate, the bottom end of the cross rod 407 is further fixed with a movable rod 409, the movable rod 409 is movably inserted in the inverted L-shaped vertical plate 5, the bottom end of the movable rod 409 is fixed with a connecting plate 410, the outside of the connecting plate 410 is movably sleeved with two symmetrical active sleeves 411, the active sleeves 411 are fixed on the connecting plate 410 through hand screws 412, the test probe 61 is fixed at the bottom end of the sliding sleeve 304, the active sleeve 411 is screw connected between the hand screw 412, after the hand screw 412 is locked, the bottom end of the hand screw 412 abuts tightly with the top end of the connecting plate 410.

[0024] Further, the output shaft extension of the driving motor 401 is connected with the connecting shaft 2 with an intermittent transmission mechanism 7, the intermittent transmission mechanism 7 includes a connecting disc 702 fixed outside the output shaft extension of the driving motor 401, the top of the connecting disc 702 is movably attached with an intermittent wheel 701, the intermittent wheel 701 is fixed outside the connecting shaft 2, the size of the connecting disc 702 is larger than the size of the intermittent wheel 701, the top end of the connecting disc 702 is fixed with a stop disc 703, one side of the stop disc 703 is provided with a transmission column 704 fixed at the top end of the connecting disc 702, the stop disc 703 is used for stopping the intermittent wheel 701, avoiding the intermittent wheel 701 from rotating continuously due to inertia, affecting the test operation, a plurality of transmission channels matched with the transmission column 704 are arranged on the intermittent wheel 701, an arc-shaped groove matched with the stop disc 703 is arranged between every two transmission channels, in the drawing, the transmission column 704 is just separated from the transmission channel.

[0025] The scheme, in use, first through artificial need to test the PCBA board set in the corresponding four mobile column 303 outside, and make the bottom end of the PCBA board with the top end of the bottom support 307, then, respectively by rotating handle two rotating two-way screw rod two 311, because two movable block 308 and two-way screw rod two 311 screw transmission connection, and cooperate with the role of articulated rod 309, so that two positioning strip 310 will be installed on the PCBA board hole for resistance, so that the PCBA board can be fixed, second, by starting the drive motor 401, the drive bevel gear one 402 counterclockwise rotation, and drive the connecting disc 702 rotation, at this time the stop disc 703 in the arc groove activity, transmission column 704 from the corresponding transmission channel, and the stop disc 703 on the intermittent wheel 701 stop, however, bevel gear two 403 connected transmission shaft 404 is driven, and drive the transmission disc 405 rotation, through the action of push-pull rod 406, can pull the horizontal rod 407 connected to the movable rod 409 down, so that the movable rod 409 bottom end plate 410 installed on the test probe 61 can be inserted into the PCBA board on the socket, after the insertion is completed, and can be displayed on the tester 6 test results, artificial can be determined by the tester 6 test results to determine the PCBA board is good or bad, greatly improve the efficiency of testing, good use effect, when you need to test different size of PCBA board, can be through rotating handle one two-way screw rod one 306 rotation, because two-way screw rod one 306 and two sliding block 302 between screw transmission connection, in turn, so that two mobile column 303 can be moved relative to the mobile rod 305, and cooperate with the role of the chute, so that the mobile rod 305 can be in the chute activity, so as to facilitate the adjustment of the position of the mobile rod 305 according to the four around the mounting hole on the PCBA board, in turn, suitable for different size of PCBA board test, wide range of applications, adjust the place, need to loosen two hand screw 412, adjust the position of the test probe 61 on the two movable sleeve 411 bottom end.

[0026] It should be noted that in this paper, such as first and second relationship terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "include", "contain" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0027] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A PCBA board testing device comprising a base plate (1), characterized in that: The top of the base plate (1) is rotatably connected to a turntable (21) via a connecting shaft (2). An adjustable positioning mechanism (3) is installed around the top of the turntable (21). An inverted L-shaped upright plate (5) is fixed to the top of the base plate (1) on one side of the turntable (21). A tester (6) is fixed to the top of the base plate (1) on one side of the inverted L-shaped upright plate (5). The tester (6) is electrically connected to two test probes (61) via wires. A transmission mechanism (4) is connected between the base plate (1) and the inverted L-shaped upright plate (5). The adjustable positioning mechanism (3) includes a hollow plate (301) fixed to the top of the turntable (21). Two symmetrically arranged sliders (302) are slidably connected to both sides of the hollow plate (301). The vertical cross section of the sliders (302) is an "I" shaped structure. Two symmetrically arranged moving columns (303) slide inside the hollow plate (301). Both ends of the moving columns (303) are connected to the corresponding sliders (302). Two symmetrically arranged sliding sleeves (304) are slidably sleeved on the outer sides of the two moving columns (303). The top of each sliding sleeve (304) is fixedly connected to a moving rod (305), and the outer side of each moving rod (305) is fixedly connected to a base (307). The top of each hollow plate (301) is provided with a slanted groove to facilitate the movement of the moving rod (305). Each side wall of the hollow plate (301) is provided with a sliding groove that cooperates with two sliders (302). A double-acting screw (306) is rotatably connected in one of the sliding grooves. The double-acting screw (306) is connected to the two corresponding sliders (302) by a screw drive. One end of the double-acting screw (306) extends to the outer side of the hollow plate (301) and is fixedly connected to a rotating handle. The transmission mechanism (4) includes a drive motor (401) fixed to the top of the base plate (1). The output shaft of the drive motor (401) is fixed to a bevel gear (402). A bevel gear (403) is meshed with one side of the bevel gear (402). The bevel gear (403) is rotatably connected to the inverted L-shaped upright plate (5) through a transmission shaft (404). The other end of the transmission shaft (404) is fixed to a transmission disc (405). A push-pull rod (406) is hinged to the surface of the transmission disc (405). A crossbar (407) is hinged to the top of the push-pull rod (406). The crossbar (407) is movably sleeved (411) on the outside of the inverted L-shaped rod (408). The inverted L-shaped rod (408) is fixed to the inverted L-shaped upright plate (5). An intermittent transmission mechanism (7) is connected between the output shaft extension of the drive motor (401) and the connecting shaft (2). The intermittent transmission mechanism (7) includes a connecting disc (702) fixedly attached to the outside of the output shaft extension of the drive motor (401). An intermittent wheel (701) is movably attached to the top of the connecting disc (702). The intermittent wheel (701) is fixedly attached to the outside of the connecting shaft (2).

2. The PCBA board testing device of claim 1, wherein: The inside moving cavity of the moving rod (305) is slidably provided with two movable blocks (308), the two ends of the movable block (308) are hingedly provided with a hinge rod (309), the other end of the two hinge rods (309) on the same side is hingedly provided with a same positioning strip (310), the two sides of the moving cavity are provided with movable cavities for facilitating the movement of the two hinge rods (309), the movable cavities are communicated with the moving cavity, the two movable blocks (308) are screw transmission connected with a same bidirectional lead screw two (311), the bidirectional lead screw two (311) is rotationally connected in the moving cavity, the top end of the bidirectional lead screw two (311) extends to the top of the moving rod (305) and is fixedly connected with a rotating handle two.

3. The PCBA board testing device of claim 2, wherein: The bottom end of the cross rod (407) is further fixedly connected with a movable rod (409), the movable rod (409) is movably inserted into the inverted L-shaped stand (5), the bottom end of the movable rod (409) is fixedly connected with a connecting plate (410), the outer side of the connecting plate (410) is slidably sleeved with two symmetrically arranged movable sleeves (411), the movable sleeves (411) are fixed on the connecting plate (410) through hand screws (412), and the test probes (61) are fixed on the bottom end of the sliding sleeve (304).

4. The PCBA board testing device of claim 3, wherein: The top end of the connecting disc (702) is fixedly connected with a stop disc (703), one side of the stop disc (703) is provided with a transmission column (704) fixedly connected with the top end of the connecting disc (702).

5. The PCBA board testing device of claim 4, wherein: A plurality of transmission channels matched with the transmission column (704) are arranged on the intermittent wheel (701), and an arc-shaped groove matched with the stop disc (703) is arranged between every two transmission channels.

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