Circuit board detection device

Abstract

The utility model relates to the technical field of circuit board detection, in particular to a circuit board detection device. According to the technical scheme, the device comprises a detection table and a universal meter, a back plate is fixed to the rear side of the upper end of the detection table, a mounting plate is fixed to the upper end of the back plate, the universal meter is fixed to the mounting plate, a pair of detection heads is mounted on the universal meter, and a pair of movable frames is slidably connected to the center of the upper end of the detection table; an end frame is installed above the movable frame through a pair of connecting rotating rods, an extrusion plate is installed at the bottom of the end frame, a rotary knob for controlling the extrusion plate to stretch out and draw back is rotationally connected to the upper end of the end frame, and a synchronous groove is formed in the position, corresponding to the movable frame, of the upper end of the detection table. According to the utility model, when the detection head on the universal meter is used for detecting the circuit board, the two ends of the circuit board can be fixed by utilizing the extrusion of the pressing plate, and the distance between the movable frames can be adjusted according to different sizes of the circuit board, so that the overall practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board detection, in particular to a circuit board detection device. Background Technique

[0002] Circuit board detection refers to a series of tests and inspections on printed circuit boards (PCBs) to ensure the quality, performance, and reliability of the circuit boards. These detections are usually carried out during the production process of the circuit boards or can also be carried out for maintenance after the circuit boards have been used for a period of time.

[0003] A common detection method is to use a multimeter or a dedicated test device to measure whether the values of passive components on the circuit board are within the specified range. During this process, it is necessary to keep the circuit board stable. Since both hands will hold a pair of detection heads during the detection process, if the circuit board cannot be kept stable, it is difficult for the tiny contacts to align with the detection heads, resulting in inaccurate detection results. If it is directly placed on the desktop for detection without any restraint, its stability is difficult to guarantee. Content of the Utility Model

[0004] The purpose of the utility model is to provide a circuit board detection device to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: It includes a detection table and a multimeter. A backboard is fixed at the rear side of the upper end of the detection table. An installation plate is fixed at the upper end of the backboard. The multimeter is fixed on the installation plate. A pair of detection heads are installed on the multimeter. A pair of movable frames are slidably connected to the central position of the upper end of the detection table. An end frame is installed above the movable frame through a pair of connecting rotating rods. An extrusion plate is installed at the bottom of the end frame. A knob for controlling the expansion and contraction of the extrusion plate is rotatably connected to the upper end of the end frame. Synchronous grooves are opened at the positions corresponding to the movable frames on the upper end of the detection table, and synchronous sliding components are arranged in the synchronous grooves.

[0006] Preferably, a pair of guide rods are fixed at the upper end of the detection table. The guide rods pass through the movable frames and are slidably connected to the movable frames. Through holes are opened at the positions of the movable frames aligned with the guide rods, and anti-slip rubber rings are fixed in the through holes.

[0007] Preferably, a control switch is fixed on the front side of the backboard, and a supplementary light is fixed at the middle position of the front side of the backboard.

[0008] Preferably, a telescopic block is connected inside the end frame. The bottom of the telescopic block is fixed to the upper end of the pressing plate. A threaded rod is rotatably connected inside the end frame. The bottom of the threaded rod is threadedly connected to the telescopic block and the upper end is fixed to the knob.

[0009] Preferably, the synchronous sliding assembly includes a sliding block and a synchronous gear. The sliding block is slidably connected in the synchronous groove and aligned with the movable frame in position. The upper end of the sliding block is fixed to the bottom of the movable frame. The synchronous gear is rotatably connected to the middle position of the synchronous groove. Synchronous toothed plates are slidably connected to both the front and rear sides of the synchronous groove. The closer sides of the synchronous toothed plates are meshed with the synchronous gear, and the farther ends of the synchronous toothed plates are respectively fixed to the corresponding sliding blocks.

[0010] Preferably, the bottom of the connecting rotating rod is rotatably connected to the side wall of the movable frame, the upper end of the connecting rotating rod is fixed to the end frame, a baffle is fixed to the side wall of the movable frame, and the baffle abuts against the vertical side wall of the connecting rotating rod.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: When using the detection head on the multimeter to detect the circuit board, the two ends of the circuit board can be fixed by the extrusion of the pressing plate, and the distance between the movable frames can be adjusted according to the different sizes of the circuit boards, increasing the overall practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a front sectional structure schematic diagram of a circuit board detection device of the present utility model;

[0013] Figure 2 is a combined sectional structure schematic diagram of the movable frame and the end frame of a circuit board detection device of the present utility model;

[0014] Figure 3 is a combined structure schematic diagram of the synchronous toothed plate and the synchronous gear of a circuit board detection device of the present utility model;

[0015] Figure 4 is a combined external structure schematic diagram of the movable frame and the end frame of a circuit board detection device of the present utility model.

[0016] In the figure: 1, detection table; 11, guide rod; 2, back plate; 21, mounting plate; 22, multimeter; 23, detection head; 24, control switch; 25, supplementary light; 3, movable frame; 31, baffle; 32, through hole; 33, anti-slip rubber ring; 4, end frame; 41, telescopic block; 42, pressing plate; 43, threaded rod; 44, knob; 5, connecting rotating rod; 6, synchronous groove; 61, sliding block; 62, synchronous toothed plate; 63, synchronous gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] Please refer to Figures 1-4 , the present invention provides a technical solution: including a detection table 1 and a multimeter 22. A back plate 2 is fixed to the rear side of the upper end of the detection table 1. An installation plate 21 is fixed to the upper end of the back plate 2. The multimeter 22 is fixed on the installation plate 21. A pair of detection heads 23 are installed on the multimeter 22. A pair of movable frames 3 are slidably connected to the center position of the upper end of the detection table 1. An end frame 4 is installed above the movable frame 3 through a pair of connecting rotating rods 5. A pressing plate is installed at the bottom of the end frame 4. A knob 44 for controlling the expansion and contraction of the pressing plate is rotatably connected to the upper end of the end frame 4. Synchronous grooves 6 are provided at positions corresponding to the movable frames 3 on the upper end of the detection table 1. A synchronous sliding component is arranged in the synchronous grooves 6. A pair of guide rods 11 are fixed to the upper end of the detection table 1. The guide rods 11 pass through the movable frames 3 and are slidably connected to the movable frames 3. A through hole 32 is provided at a position on the movable frame 3 aligned with the guide rods 11. An anti-slip rubber ring 33 is fixed in the through hole 32. A control switch 24 is fixed to the front side of the back plate 2. A supplementary light 25 is fixed to the middle position of the front side of the back plate 2. The bottom of the connecting rotating rod 5 is rotatably connected to the side wall of the movable frame 3. The upper end of the connecting rotating rod 5 is fixed to the end frame 4. A baffle 31 is fixed to the side wall of the movable frame 3. The baffle 31 abuts against the perpendicular side wall of the connecting rotating rod 5.

[0019] A telescopic block 41 is connected inside the end frame 4. The bottom of the telescopic block 41 is fixed to the upper end of the pressing plate 42. A threaded rod 43 is rotatably connected inside the end frame 4. The bottom of the threaded rod 43 is threadedly connected to the telescopic block 41 and the upper end is fixed to the knob 44.

[0020] The synchronous sliding component includes a sliding block 61 and a synchronous gear 63. The sliding block 61 is slidably connected in the synchronous groove 6 and is aligned with the movable frame 3 in position. The upper end of the sliding block 61 is fixed to the bottom of the movable frame 3. The synchronous gear 63 is rotatably connected to the middle position of the synchronous groove 6. Synchronous toothed plates 62 are slidably connected to both the front and rear sides of the synchronous groove 6. The closer sides of the synchronous toothed plates 62 are engaged with the synchronous gear 63. The farther ends of the synchronous toothed plates 62 are respectively fixed to the corresponding sliding blocks 61.

[0021] Working principle: First, connect the entire device to an external power supply. Then, place the circuit board between the upper ends of the movable frame 3. Next, by rotating the connecting rotating rod 5, the end frame 4 can be flipped above the movable frame 3. During this process, with the limit of the baffle 31, it can be ensured that the connecting rotating rod 5 can accurately rotate to the upright state. Then, by rotating the knob 44, the threaded rod 43 is driven to rotate, causing the telescopic block 41 to slide downward, and finally driving the pressing plate 42 to slide downward to squeeze and fix both ends of the circuit board to ensure its stability. Finally, the circuit board is detected using the universal variable and the detection head 23. There is no need to worry about the displacement of the circuit board during detection. Moreover, when encountering circuit boards of different sizes, the distance between the movable frames 3 can be adjusted by sliding the movable frame 3 to fix circuit boards of different sizes. And through the meshing transmission of the synchronous toothed plate 62 and the synchronous gear 63, the synchronous sliding of the sliding block 61 is ensured, and further the synchronous sliding of the movable frame 3 is ensured, so that the circuit board always remains in the middle position after being fixed, which is convenient for operation. Moreover, accurate lighting can be achieved using the supplementary light 25.

[0022] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0023] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circuit board testing device, comprising a testing platform (1) and a multimeter (22), characterized in that: A back plate (2) is fixed to the rear side of the upper end of the detection platform (1), a mounting plate (21) is fixed to the upper end of the back plate (2), the multimeter (22) is fixed on the mounting plate (21), a pair of detection heads (23) are mounted on the multimeter (22), a pair of movable frames (3) are slidably connected to the center position of the upper end of the detection platform (1), an end frame (4) is mounted above the movable frame (3) via a pair of connecting rotating rods (5), an extrusion plate is mounted at the bottom of the end frame (4), and a knob (44) for controlling the extension and retraction of the extrusion plate is rotatably connected to the upper end of the end frame (4), a synchronization groove (6) is provided at the upper end of the detection platform (1) and at a position corresponding to the movable frame (3), and a synchronization sliding component is arranged in the synchronization groove (6).

2. A circuit board detection device according to claim 1, characterized in that: A pair of guide rods (11) are fixed at the upper end of the detection platform (1), the guide rods (11) pass through the movable frame (3) and are slidably connected to the movable frame (3), a through hole (32) is provided on the movable frame (3) and aligned with the guide rods (11), and an anti-slip rubber ring (33) is fixed in the through hole (32).

3. A circuit board detection device according to claim 1, characterized in that: A control switch (24) is fixed on the front side of the back plate (2), and a fill light (25) is fixed at the middle position of the front side of the back plate (2).

4. A circuit board detection device according to claim 1, characterized in that: A telescopic block (41) is connected inside the end frame (4), the bottom of the telescopic block (41) is fixed to the upper end of the pressing plate (42), a threaded rod (43) is rotatably connected inside the end frame (4), the bottom of the threaded rod (43) is threadedly connected inside the telescopic block (41), and the upper end is fixed on the knob (44).

5. A circuit board detection device according to claim 1, characterized in that: The synchronous sliding assembly comprises a sliding block (61) and a synchronous gear (63). The sliding block (61) is slidably connected in the synchronous groove (6) and its position is aligned with the movable frame (3). The upper end of the sliding block (61) is fixed to the bottom of the movable frame (3). The synchronous gear (63) is rotatably connected to the middle position of the synchronous groove (6). The front and rear sides of the synchronous groove (6) are both slidably connected with synchronous tooth plates (62). The close side of the synchronous tooth plate (62) is meshed with the synchronous gear (63), and the far end of the synchronous tooth plate (62) is respectively fixed on the corresponding sliding block (61).

6. A circuit board detection device according to claim 1, characterized in that: The bottom of the connecting rotating rod (5) is rotatably connected to the side wall of the movable frame (3), the upper end of the connecting rotating rod (5) is fixed on the end frame (4), and a baffle (31) is fixed to the side wall of the movable frame (3), and the baffle (31) abuts against the vertical side wall of the connecting rotating rod (5).

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