MV PCB function manual test fixture

Abstract

The utility model relates to the field of test tools, in particular to an MVPCB function manual test tool. Comprising a base, the upper surface of the base is fixedly connected with a plurality of supporting columns, the upper ends of the supporting columns are fixedly connected with a mounting seat, a PCB body is placed on the upper surface of the mounting seat, the upper surface of the mounting seat is provided with a plurality of detection interfaces, one side of the mounting seat is provided with an adjusting structure, the adjusting structure comprises a lead screw, and the arc surface of the lead screw is in threaded connection with a connecting plate. Two top plates are fixedly connected to the side, close to the mounting base, of the connecting plate, the section of each top plate is in a right trapezoid shape, and positioning rods are fixedly connected to the two sides of the mounting base. The MVPCB function manual test fixture provided by the utility model has the advantages that personnel can conveniently adjust the limiting plate to clamp and limit the PCB body on the mounting seat, so that the PCB body can be stably fixed during function test, and the use stability of the PCB function manual test fixture is improved.

Description

Technical Field

[0001] The utility model relates to the field of test fixtures, in particular to a manual test fixture for the functions of an MVPCB board. Background Art

[0002] PCB board, also known as printed circuit board, is the provider of electrical connections for electronic components. Before leaving the factory, the PCB board needs to be tested for its functions using a test fixture.

[0003] The utility model with announcement number CN212989568U discloses a manual PCB board interface test fixture, and the key points of its technical solution are: it includes a base plate, two groups of parallel guide blocks are fixed on the base plate, a guide column passing through the two guide blocks is provided between the two guide blocks of each group, first vertical plates are fixed at both ends of each guide column, a carrier plate is fixed on the first vertical plate, the bottom surface and the bottom surface of the carrier plate are respectively fixed with second vertical plates, a quick hand clamp is fixed between the two second vertical plates, a support platform is fixed on the surface of the base plate on one side of the carrier plate, an interface plate with multiple wire grooves is placed on the support platform, multiple bearing plates are fixed on the surface of the interface plate at the wire grooves, a clamping screw is threadedly connected on the bearing plate, a pressure plate is fixed on one end of the clamping screw located in the wire groove, and a buckle is fixed between the support platform and the interface plate.

[0004] With respect to the above-mentioned related contents, the following technical defects were found: when using an interface test fixture to test the interface of a PCB board, the PCB board is prone to shaking during the test, which in turn affects the normal progress of the test process and the stability of the use of the test fixture. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a manual test fixture for the functions of an MVPCB board.

[0006] In order to solve the above technical problems, the utility model provides an MVPCB board function manual test fixture, comprising: a base, a plurality of support columns are fixedly connected to the upper surface of the base, the upper ends of the support columns are fixedly connected to a mounting seat, a PCB board body is placed on the upper surface of the mounting seat, a plurality of detection interfaces are installed on the upper surface of the mounting seat, an adjustment structure is provided on one side of the mounting seat, the adjustment structure comprises a screw rod, a connecting plate is threadedly connected to the arc surface of the screw rod, two top plates are fixedly connected to one side of the connecting plate close to the mounting seat, the cross-section of the top plate is a right-angled trapezoid, positioning rods are fixedly connected to both sides of the mounting seat, a connecting plate is slidably connected to the side of the positioning rod, an adjustment plate is fixedly connected to the lower surface of the short arm end of the connecting plate, the cross-section of the adjustment plate is a right-angled trapezoid, the adjustment plate corresponds to the oblique waist side of the top plate, and a limit plate is fixedly connected to one side of the long arm end of the adjustment plate, and the cross-section of the limit plate is "U"-shaped.

[0007] The effect achieved by the above components is: by setting the adjustment structure, personnel can easily adjust the limit plate to clamp and limit the PCB board body on the mounting seat, so that the PCB board body can be fixed firmly during functional testing, thereby improving the use stability of the PCB board functional manual test fixture.

[0008] Preferably, the oblique waist side of the top plate is rotatably connected with a pulley, and the arc surface of the pulley abuts against the oblique waist side of the adjustment plate.

[0009] The effect achieved by the above components is: the pulley can convert the sliding friction between the top plate and the adjustment plate into rolling friction, reducing the friction between the top plate and the oblique side of the adjustment plate, thereby achieving the effect of making the process of the top plate driving the adjustment plate to move smoother.

[0010] Preferably, a spring is sleeved on the side of the positioning rod, and two ends of the spring are fixedly connected to the positioning rod and the connecting plate respectively, and the spring is always in a stretched state.

[0011] The effect achieved by the above components is: the connecting plate drives the top plate, and after the top plate drives the pulley to separate from the adjusting plate, the spring can pull the two limit plates to move quickly away from each other, thereby achieving the effect of conveniently controlling the limit plates.

[0012] Preferably, the two limiting plates are fixedly connected to one side thereof close to each other with a rubber pad, and the rubber pad is adapted to the size of one side of the limiting plate.

[0013] The effect achieved by the above components is that the rubber pad can increase the friction force of the limiting plate on the side close to the PCB body, thereby improving the limiting effect of the limiting plate on the PCB.

[0014] Preferably, a plurality of guide rods are slidably provided on the side surface of the connecting plate, and one end of the guide rod is fixedly connected to the mounting seat.

[0015] The effect achieved by the above components is that when the screw rod is rotated to drive the connecting plate to move, the guide rod can guide and position the connecting plate, thereby achieving the effect of preventing rotational deviation of the connecting plate during the movement process.

[0016] Preferably, the arc surface of the screw rod is rotatably connected to a fixing ring, one end of the fixing ring is fixedly connected to a mounting seat, and a pressure rod is threadedly penetrated through the outer wall of the fixing ring.

[0017] The effect achieved by the above components is: after the limit plate is adjusted to clamp the PCB board body firmly, the personnel can rotate the pressure rod to abut against the screw rod, thereby achieving the effect of limiting the screw rod.

[0018] Preferably, a plurality of rotating plates are fixedly connected to the arc surface of the screw rod, and the rotating plates are evenly distributed on the arc surface of the screw rod.

[0019] The effect achieved by the above components is that a person can rotate the turntable to drive the screw rod to rotate, thereby achieving convenient control.

[0020] Compared with the related art, the MVPCB board function manual test fixture provided by the utility model has the following beneficial effects:

[0021] The utility model provides a manual function test fixture for MVPCB boards. By setting an adjustment structure, personnel can conveniently adjust the limit plate to clamp and limit the PCB board body on the mounting seat, so that the PCB board body can be firmly fixed during functional testing, thereby improving the use stability of the manual function test fixture for PCB boards. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of the MVPCB board function manual test fixture provided by the utility model;

[0023] Figure 2 for Figure 1 The structural diagram on the right side shown;

[0024] Figure 3 for Figure 1 A schematic diagram of the structure of the regulatory structure shown;

[0025] Figure 4 for Figure 1 Schematic diagram of the local structure of the regulatory structure shown.

[0026] Numbers in the figure: 1. base; 2. support column; 3. adjustment structure; 301. screw rod; 302. connecting plate; 303. top plate; 304. positioning rod; 305. connecting plate; 306. adjustment plate; 307. limit plate; 308. pulley; 309. spring; 310. rubber pad; 311. rotating plate; 312. guide rod; 313. fixing ring; 314. pressure rod; 4. mounting seat; 5. PCB board body; 6. detection interface. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0029] See also Figures 1 to 4 The MVPCB board function manual test fixture provided by the embodiment of the utility model includes: a base 1, a plurality of support columns 2 are fixedly connected to the upper surface of the base 1, a mounting seat 4 is fixedly connected to the upper end of the support column 2, a PCB board body 5 is placed on the upper surface of the mounting seat 4, a plurality of detection interfaces 6 are installed on the upper surface of the mounting seat 4, and an adjustment structure 3 is provided on one side of the mounting seat 4.

[0030] In the embodiments of the present invention, please refer to Figure 2 , Figure 3 and Figure 4The adjusting structure 3 includes a screw rod 301, the arc surface of the screw rod 301 is threadedly connected with a connecting plate 302, and the connecting plate 302 is fixedly connected to one side of the mounting seat 4 with two top plates 303, and the cross section of the top plate 303 is a right-angled trapezoid. Positioning rods 304 are fixedly connected to both sides of the mounting seat 4, and the side of the positioning rod 304 is slidably connected with a connecting plate 305, and the lower surface of the short arm end of the connecting plate 305 is fixedly connected with an adjusting plate 306, and the cross section of the adjusting plate 306 is a right-angled trapezoid. The adjusting plate 306 corresponds to the oblique waist side of the top plate 303, and one side of the long arm end of the adjusting plate 306 is fixedly connected to a limiting plate 307, and the cross section of the limiting plate 307 is "U"-shaped. By setting the adjusting structure 3, personnel can easily adjust the limiting plate 307 on the mounting seat 4 The PCB board body 5 is clamped and limited, so that the PCB board body 5 can be fixed firmly during the functional test, thereby improving the stability of the PCB board function manual test fixture. The oblique waist side of the top plate 303 is rotatably connected with a pulley 308, and the arc surface of the pulley 308 abuts against the oblique waist side of the adjustment plate 306. The pulley 308 can convert the sliding friction between the top plate 303 and the adjustment plate 306 into rolling friction, thereby reducing the friction between the top plate 303 and the oblique waist side of the adjustment plate 306, thereby achieving the effect of making the top plate 303 drive the adjustment plate 306 to move more smoothly. The side of the positioning rod 304 is sleeved with a spring 309, and the two ends of the spring 309 are respectively fixedly connected to the positioning rod 304 and the connecting plate 305. The spring 309 is always When the cam 310 is in the tension state, the connecting plate 302 drives the top plate 303. After the top plate 303 drives the pulley 308 to separate from the adjusting plate 306, the spring 309 can pull the two limit plates 307 to move quickly in the direction away from each other, thereby achieving the effect of conveniently controlling the limit plates 307. The two limit plates 307 are fixedly connected with a rubber pad 310 on the side close to each other. The rubber pad 310 is adapted to the size of one side of the limit plate 307. The rubber pad 310 can increase the friction force of the limit plate 307 close to the side of the PCB board body 5, thereby improving the limiting effect of the limit plate 307 on the PCB board. A number of guide rods 312 are slidably penetrated on the side of the connecting plate 302. One end of the guide rod 312 is fixedly connected to the mounting seat 4. The rotating screw 301 drives the engagement When the connecting plate 302 moves, the guide rod 312 can guide and position the connecting plate 302, thereby preventing the connecting plate 302 from rotating and deviating during the movement process. The arc surface of the screw rod 301 is rotatably connected with a fixing ring 313, one end of the fixing ring 313 is fixedly connected to the mounting seat 4, and a pressure rod 314 is threadedly penetrated through the outer wall of the fixing ring 313. When the adjustment limit plate 307 clamps the PCB board body 5 firmly, the personnel can rotate the pressure rod 314 to abut against the screw rod 301, thereby achieving the effect of limiting the screw rod 301. The arc surface of the screw rod 301 is fixedly connected with a plurality of rotating plates 311, and the rotating plates 311 are evenly distributed on the arc surface of the screw rod 301. The personnel can rotate the turntable to drive the screw rod 301 to rotate, thereby achieving convenient control.

[0031] The working principle of the MVPCB board function manual test fixture provided by the utility model is as follows: when it is necessary to use the manual test fixture to test the function of the PCB board, first place the PCB board on the upper surface of the mounting seat 4, and then connect the PCB board body 5 with the detection interface 6 by means of a cable. When it is necessary to fix the PCB board firmly during the test, the personnel can use the rotating plate 311 to rotate the screw rod 301, the screw rod 301 drives the connecting plate 302, and the connecting plate 302 drives the two top plates 303, so that the top plate 303 squeezes the adjusting plate 306 by means of the pulley 308. When the adjusting plate 306 is pressed by the pulley 308, the connecting plate 305 is driven to move towards the direction close to the PCB board body 5. When the connecting plate 305 drives the limiting plate 307 to abut against the side of the PCB board, the limiting of the PCB board body 5 can be completed. After the limiting plate 307 is adjusted to clamp the PCB board body 5 firmly, the personnel can rotate the pressure rod 314 to abut against the screw rod 301, so as to achieve the effect of limiting the screw rod 301. When the PCB board body 5 is tested and needs to be removed from the fixture, the personnel need to first rotate the pressure rod 314 to separate it from the screw rod 301, and then use the rotating plate 307 to rotate the pressure rod 314 ... The screw rod 301 is rotated to make the screw rod 301 drive the connecting plate 302 to move away from the mounting seat 4, the connecting plate 302 drives the top plate 303, and the top plate 303 drives the pulley 308 to move away from the adjusting plate 306. At this time, the spring 309 can pull the two limit plates 307 to move quickly away from each other, so as to achieve the effect of conveniently controlling the limit plates 307. When the connecting plate 305 drives the limit plates 307 to separate from the PCB board body 5, the PCB board body 5 can be taken out, wherein the pulley 308 can slide between the top plate 303 and the adjusting plate 306. The friction is converted into rolling friction, which reduces the friction between the top plate 303 and the oblique waist side of the adjustment plate 306, thereby achieving a smoother effect of the top plate 303 driving the adjustment plate 306 to move. In addition, the rubber pad 310 can increase the friction of the limit plate 307 close to the side of the PCB board body 5, thereby improving the limiting effect of the limit plate 307 on the PCB board. Finally, when the screw rod 301 is rotated to drive the connecting plate 302 to move, the guide rod 312 can guide and position the connecting plate 302, thereby achieving the effect of avoiding rotational deviation during the movement of the connecting plate 302.

[0032] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0033] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. MVPCB board function manual test fixture, characterized by: include: A base (1), wherein the upper surface of the base (1) is fixedly connected to a plurality of support columns (2), the upper ends of the support columns (2) are fixedly connected to a mounting seat (4), a PCB board body (5) is placed on the upper surface of the mounting seat (4), a plurality of detection interfaces (6) are installed on the upper surface of the mounting seat (4), an adjustment structure (3) is provided on one side of the mounting seat (4), the adjustment structure (3) comprises a screw rod (301), a connecting plate (302) is threadedly connected to the circular arc surface of the screw rod (301), and two top connecting plates (302) are fixedly connected to one side of the connecting plate (302) close to the mounting seat (4). The top plate (303) has a right-angled trapezoidal cross section, positioning rods (304) are fixedly connected to both sides of the mounting seat (4), and the side of the positioning rod (304) is slidably connected to a connecting plate (305), and the lower surface of the short arm end of the connecting plate (305) is fixedly connected to an adjustment plate (306), and the cross section of the adjustment plate (306) is a right-angled trapezoid, and the adjustment plate (306) corresponds to the oblique waist side of the top plate (303), and one side of the long arm end of the adjustment plate (306) is fixedly connected to a limiting plate (307), and the cross section of the limiting plate (307) is "U"-shaped.

2. The MVPCB board function manual test fixture according to claim 1 is characterized in that: The oblique waist side of the top plate (303) is rotatably connected to a pulley (308), and the arc surface of the pulley (308) abuts against the oblique waist side of the adjustment plate (306).

3. The MVPCB board function manual test fixture according to claim 1 is characterized in that: A spring (309) is sleeved on the side of the positioning rod (304), and two ends of the spring (309) are respectively fixedly connected to the positioning rod (304) and the connecting plate (305), and the spring (309) is always in a stretched state.

4. The MVPCB board function manual test fixture according to claim 1, characterized in that: The two limiting plates (307) are both fixedly connected to a rubber pad (310) on one side close to each other, and the rubber pad (310) is adapted to the size of one side of the limiting plate (307).

5. The MVPCB board function manual test fixture according to claim 1, characterized in that: A plurality of guide rods (312) are slidably provided on the side surface of the connection plate (302), and one end of the guide rod (312) is fixedly connected to the mounting seat (4).

6. The MVPCB board function manual test fixture according to claim 1, characterized in that: The arc surface of the screw rod (301) is rotatably connected to a fixing ring (313), one end of the fixing ring (313) is fixedly connected to a mounting seat (4), and a pressure rod (314) is threadedly penetrated through the outer wall of the fixing ring (313).

7. The MVPCB board function manual test fixture according to claim 1, characterized in that: A plurality of rotating plates (311) are fixedly connected to the circular arc surface of the screw rod (301), and the rotating plates (311) are evenly distributed on the circular arc surface of the screw rod (301).

Images