Universal pcba power supply electrical property test measuring instrument

Abstract

The utility model relates to the field of PCBA electrical property detection, the utility model discloses a general PCBA power supply electrical property test measuring instrument, include: base, PCBA fixed assembly and a plurality of test mechanism, PCBA fixed assembly sets up in base, and the two clamping parts between for positioning the board to be measured are equipped with on PCBA fixed assembly upper end, and the board to be measured is inserted between two clamping parts along the vertical direction, and test mechanism all includes frame, driving part and at least one group test assembly, and frame slidingly sets up in base, and each test assembly includes fixed part and at least one connecting arm, and fixed part is detachably arranged in frame, and one end of connecting arm is rotatable and detachably arranged in fixed part, and the other end of connecting arm is equipped with test probe, and the moving path of test probe all penetrates between two clamping parts. Measuring instrument "one machine multiuse", and the cost is low, and the flexibility is higher. And can carry out electrical property detection to PCBA two sides simultaneously, can realize the impedance test, voltage measurement and current measurement of PCBA and other electrical property detection, improve the detection speed.

Description

Technical Field

[0001] This utility model relates to the field of PCBA electrical testing, and in particular to a general PCBA power supply electrical testing and measuring instrument. Background Technology

[0002] Currently, the PCBA electrical testing industry commonly uses dedicated testing equipment and dedicated PCBA mounting components (for example, ICT testing requires ICT testing equipment and dedicated PCBA mounting components, which are customized based on the product's Gerber specifications). This necessitates the development of dedicated PCBA mounting components, increasing product testing costs and development cycles. Furthermore, different PCBA specifications have different dimensions, requiring the development of custom mounting components for each size, further increasing product testing costs and development cycles.

[0003] When testing both sides of a PCBA simultaneously, the PCBA can only be inserted vertically between the two sets of test probes. When the PCBA is large, it needs to be moved above the testing device before it can be inserted between the two sets of test probes, making the PCBA installation process rather cumbersome. Utility Model Content

[0004] The purpose of this invention is to provide a universal PCBA power supply electrical test instrument that can adjust the position of the test probe according to the distribution of test points on the PCBA under test, so as to be able to test a variety of PCBAs.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a general-purpose PCBA power supply electrical testing and measuring instrument, comprising: The base has a testing station and a loading / unloading station in the middle area, with the loading / unloading station located on both sides of the testing station. A guide element is provided at the test station, and the end of the guide element extends into the loading and unloading station; PCBA fixing assembly includes a support component and two clamping components. The support component is used to support the board under test. The board under test is clamped between the two clamping components. Both clamping components are slidably and detachably connected to a guide element. Two testing mechanisms for detection are respectively set on both sides of the testing station; Each of the aforementioned test mechanisms includes a frame, a drive unit, and at least one set of test components. The frame is slidably disposed on the base, and the drive unit is used to drive the frame to move closer to or further away from the PCBA fixing components in the horizontal direction. Each of the test components includes a fixing member and at least one connecting arm. The fixing member is detachably mounted on the frame. One end of the connecting arm is rotatable and detachably mounted on the fixing member. The other end of the connecting arm is provided with a test probe. The movement path of each test probe passes through the two clamping components.

[0006] Preferably, the guide element includes a dovetail guide rail and a dovetail slider, the clamping component is detachably connected to the dovetail slider, the lower end of the clamping component is threadedly connected to a stop element, the lower end of the stop element abuts against the base, and the stop element is a set screw or a ball screw.

[0007] Preferably, the connecting arm includes a first arm and a second arm, the first arm is detachably mounted on the fixing member, one end of the second arm is rotatably connected to the first arm, and the test probe passes through the other end of the second arm in a horizontal direction.

[0008] Preferably, the connecting arm further includes a damping block, one end of the second arm is rotatably connected to the first arm via a hinge, the damping block is sandwiched between the first arm and the second arm, and the hinge passes through the damping block.

[0009] Preferably, one end of the first arm is rotatably and detachably connected to the fixing member by a fastener, and the fixing member is provided with a plurality of connecting structures at even intervals, and the fastener is connected to any one of the connecting structures.

[0010] Preferably, the clamping component includes an L-shaped bracket, the upper end of which extends vertically and the lower end of which extends away from the supporting component.

[0011] Preferably, the support component includes a support base, which is slidably disposed between two L-shaped brackets. The support base and the two L-shaped brackets are slidably disposed along the same horizontal straight line. The upper end of the support base is provided with a through groove for accommodating the bottom edge of the test plate.

[0012] Preferably, the fastener is a screw, the connection structure is a threaded hole, and the first arm has an elongated through hole for the screw to pass through.

[0013] Preferably, the surfaces of the two clamping components close to each other are provided with stepped grooves, and the groove wall of the stepped groove is provided with at least one first elongated groove for accommodating the side of the test plate, and the upper end of the first elongated groove is open.

[0014] Preferably, the bottom of the stepped groove is provided with at least one second elongated groove to accommodate the bottom edge of the plate to be tested, and the second elongated groove is open at one end near the support. The beneficial effects of this utility model are as follows: Move one of the clamping components and the support component to the loading / unloading station, place the bottom edge of the PCBA to be tested on the support component, and push the PCBA and the support component laterally into the testing station. Then reset the clamping component. Activate the two driving components, which drive the testing mechanisms on both sides of the PCBA fixing assembly to move towards the PCBA to be tested between the two clamping components. The two testing mechanisms then simultaneously test both sides of the PCBA.

[0015] Large-sized PCBs under test can be inserted laterally between two testing mechanisms and clamped and fixed by two clamping components. The positions of the clamping and supporting components can be adjusted laterally according to the size of the board under test, which can adapt to various board sizes and greatly improve testing efficiency and flexibility.

[0016] It can perform electrical tests on both sides of a PCBA simultaneously, and can perform electrical tests such as impedance testing, voltage measurement, and current measurement of the PCBA. It is also compatible with various PCBA specifications and improves the testing speed. Attached Figure Description

[0017] The accompanying drawings further illustrate the present invention, but the embodiments in the drawings do not constitute any limitation on the present invention.

[0018] Figure 1 This is a schematic diagram of the structure of a general PCBA power supply electrical testing and measuring instrument provided in an embodiment of the present invention; Figure 2 A perspective view of a connecting arm provided in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the connecting arm provided in one embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a PCBA fixing assembly provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of an L-shaped bracket provided in an embodiment of the present invention; The markings in the diagram are: 1: base; 2: frame; 3: drive component; 4: fastener; 5: first arm; 6: damping block; 7: second arm; 8: test probe; 9: L-shaped bracket; 10: support base; 11: guide element; 12: fastener; 13: first long slot; 14: second long slot. Detailed Implementation

[0019] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0020] It should be noted that, in this utility model, unless otherwise stated, when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or may have an intervening element present simultaneously. "Inner" and "outer" refer to the inner and outer contours of a specific part. "Far" and "near" refer to the distance from or near to a certain component.

[0021] like Figures 1-5 As shown in the figure, a general PCBA power supply electrical testing and measuring instrument provided in one embodiment of the present invention includes: The base 1 has a testing station and a loading / unloading station in the middle area, with the loading / unloading station located on both sides of the testing station. A guide element 11 is detachably disposed at the test station, and the end of the guide element 11 extends into the loading and unloading station; PCBA fixing assembly includes a support component 10 and two clamping components 9. The support component 10 is used to support the board under test. The board under test is clamped between the two clamping components 9. Both clamping components 9 are slidably and detachably connected to the guide element 11. Two testing mechanisms for detection are respectively set on both sides of the testing station and are arranged opposite to each other; Each of the aforementioned test mechanisms includes a frame 2, a driving component 3, and at least one set of test components. The frame 2 is slidably disposed on the base 1, and the driving component 3 is used to drive the frame 2 to move closer to or further away from the PCBA fixing components in the horizontal direction. Each of the aforementioned test components includes a fixing member 4 and at least one connecting arm. The fixing member 4 is detachably mounted on the frame 2. One end of the connecting arm is rotatable and detachably mounted on the fixing member 4, and the other end of the connecting arm is provided with a test probe 8. The movement path of each test probe 8 passes through the two clamping components 9. When the guide element 114 is disassembled and replaced, the connecting arm and the test probe 8 mounted on the fixing member 44 will be replaced simultaneously, facilitating the quick replacement of the corresponding probe combination according to the model of the device under test. Furthermore, the connecting arm can rotate to finely adjust the position of the test probe 8, adapting to various specifications of PCBAs under test.

[0022] The guide element 11 includes a dovetail guide rail and a dovetail slider. The clamping component 9 is detachably connected to the dovetail slider. The lower end of the clamping component 9 is threadedly connected to a stop element. The lower end of the stop element abuts against the base 1. The stop element is a set screw or a ball screw. The set screw or ball screw abuts against the base 1 and applies force to the clamping element, causing the dovetail slider and the dovetail guide rail 11 to press against each other, thereby fixing the position of the clamping component 9.

[0023] The connecting arm includes a first arm 5 and a second arm 7. The first arm 5 is detachably mounted on the fixing member 4. One end of the second arm 7 is rotatably connected to the first arm 5. The test probe 8 passes through the other end of the second arm 7 in a horizontal direction. The included angle and relative position of the first arm 5 and the second arm 7 are manually adjusted to ensure that the test probe 8 at the end of the second arm 7 is precisely aligned with the test point on the PCBA under test. The driving member 3 drives the frame 2 to stably approach the PCBA under test, so that the test probe 8 makes precise contact and conduction with the test point, facilitating subsequent testing procedures.

[0024] The connecting arm also includes a damping block 6. One end of the second arm 7 is rotatably connected to the first arm 5 via a hinge. The damping block 6 is sandwiched between the first arm 5 and the second arm 7, and the hinge passes through the damping block 6. The damping block 6 has a certain elasticity, and its two ends apply pressure to the first arm 5 and the second arm 7 respectively. The interaction force and friction between the first arm 5 and the damping block 6 are relatively large, allowing the first arm 5 to be quickly fixed by the damping block 6. The interaction force and friction between the second arm 7 and the damping block 6 are also relatively large, allowing the second arm 7 to be quickly fixed by the damping block 6. Therefore, the position of the second arm 7 and the test probe 8 at its end can be quickly rotated and adjusted, precisely aligning the test probe 8 with the test point on the PCAB, and adapting to various specifications of PCBAs under test.

[0025] One end of the first arm 5 is rotatably and detachably connected to the fixing member 4 via a fastener 12. The fixing member 4 has several evenly spaced connecting structures, and the fastener 12 is connected to any one of these connecting structures. The fastener 12 is a screw, and the connecting structure is a threaded hole. The first arm 5 has an elongated through hole for the screw to pass through. The first arm 5 can rotate around the screw and be fixed, allowing for quick changes in the orientation of the second arm 7 and the test probe 8, and adjustment of the test probe 8 to other positions. The fixing member 4 is an elongated plate structure or a straight rod structure. Both ends of the fixing member 4 are detachably mounted to both ends of the frame 2 via screws. Both ends of the frame 2 have several evenly spaced screw holes. The clamping component 9 includes an L-shaped bracket. The upper end of the L-shaped bracket extends vertically, and the lower end extends away from the supporting component 10. For PCBAs of different sizes to be tested, the positions of the two L-shaped brackets need to be adjusted, and the PCBA to be tested is inserted between the two L-shaped brackets. The two L-shaped brackets respectively position the opposite sides of the PCBA to be tested, thereby achieving rapid positioning of the PCBA to be tested.

[0026] The support component 10 includes a support base slidably disposed between two L-shaped brackets. The support base and the two L-shaped brackets are slidably disposed along the same horizontal straight line. The upper end of the support base has a through groove for accommodating the bottom edge of the board under test. When the PCBA under test is inserted between the two clamping components 9, the bottom edge of the PCBA under test will be fixed inside the through groove of the middle support base, and the PCBA under test will be supported by the support base. The support base of the corresponding height can be quickly pulled out and replaced according to the specifications of the PCBA under test, so that the test points on the PCBA under test are aligned with the test probes 8, and it can adapt to PCBAs of various sizes and specifications.

[0027] The two clamping components 9 have stepped grooves on their surfaces close to each other. The groove walls of the stepped grooves have at least one first elongated groove 13 for accommodating the side of the PCBA under test. The upper end of the first elongated groove 13 is open. The side of the PCBA under test is fixed by the first elongated groove 13, improving the stability of the PCBA under test during testing.

[0028] The bottom of the stepped groove is provided with at least one second elongated groove 14 to accommodate the bottom edge of the board under test. The second elongated groove 14 is open at one end near the support base. The bottom edge of the PCBA under test is fixed by the second elongated groove 14, and the PCBA under test is supported by the second elongated groove 14, thereby improving the stability of the PCBA under test during testing.

[0029] The technical features of the embodiments described above can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these should all be considered to be within the scope of this specification.

Claims

1. A universal PCBA power supply electrical testing and measuring instrument, characterized in that: include: The base has a testing station and a loading / unloading station in the middle area, with the loading / unloading station located on both sides of the testing station. A guide element is provided at the test station, and the end of the guide element extends into the loading and unloading station; PCBA fixing assembly includes a support component and two clamping components. The support component is used to support the board under test. The board under test is clamped between the two clamping components. Both clamping components are slidably and detachably connected to a guide element. Two testing mechanisms for detection are respectively set on both sides of the testing station; Each of the aforementioned test mechanisms includes a frame, a drive unit, and at least one set of test components. The frame is slidably disposed on the base, and the drive unit is used to drive the frame to move closer to or further away from the PCBA fixing components in the horizontal direction. Each of the test components includes a fixing member and at least one connecting arm. The fixing member is detachably mounted on the frame. One end of the connecting arm is rotatable and detachably mounted on the fixing member. The other end of the connecting arm is provided with a test probe. The movement path of each test probe passes through the two clamping components.

2. The universal PCBA power supply electrical testing and measuring instrument according to claim 1, characterized in that: The guiding element includes a dovetail guide rail and a dovetail slider. The clamping component is detachably connected to the dovetail slider. The lower end of the clamping component is threadedly connected to a stop element. The lower end of the stop element abuts against the base. The stop element is a set screw or a ball screw.

3. The universal PCBA power supply electrical testing and measuring instrument according to claim 1, characterized in that: The connecting arm includes a first arm and a second arm. The first arm is detachably mounted on a fixing member. One end of the second arm is rotatably connected to the first arm. The test probe passes through the other end of the second arm in a horizontal direction.

4. The universal PCBA power supply electrical testing and measuring instrument according to claim 3, characterized in that: The connecting arm also includes a damping block. One end of the second arm is rotatably connected to the first arm via a hinge. The damping block is sandwiched between the first arm and the second arm, and the hinge passes through the damping block.

5. The universal PCBA power supply electrical testing and measuring instrument according to claim 3, characterized in that: One end of the first arm is rotatably and detachably connected to the fixing member by a fastener. The fixing member is provided with several connecting structures at even intervals, and the fastener is connected to any one of the connecting structures.

6. The universal PCBA power supply electrical testing and measuring instrument according to claim 1, characterized in that: The clamping component includes an L-shaped bracket, the upper end of which extends vertically and the lower end of which extends away from the supporting component.

7. The universal PCBA power supply electrical testing and measuring instrument according to claim 6, characterized in that: The support component includes a support base, which is slidably disposed between two L-shaped brackets. The support base and the two L-shaped brackets are slidably disposed along the same horizontal straight line. The upper end of the support base is provided with a through groove for accommodating the bottom edge of the test plate.

8. The universal PCBA power supply electrical testing and measuring instrument according to claim 5, characterized in that: The fastener is a screw, the connection structure is a threaded hole, and the first arm has an elongated through hole for the screw to pass through.

9. The universal PCBA power supply electrical testing and measuring instrument according to claim 7, characterized in that: The surfaces of the two clamping components close to each other are provided with stepped grooves, and the groove wall of the stepped groove is provided with at least one first long groove for accommodating the side of the test plate, and the upper end of the first long groove is open.

10. The universal PCBA power supply electrical testing and measuring instrument according to claim 9, characterized in that: The bottom of the stepped groove is provided with at least one second long groove to accommodate the bottom edge of the plate to be tested, and the second long groove is open at one end near the support.

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