Fixing device for testing circuit board

Abstract

The utility model discloses a fixing device for testing a circuit board, which comprises a fixing main body, four corners of the outer side of the fixing main body are fixedly connected with mounting assemblies, the top of the fixing main body is provided with an adjusting groove, the top of the fixing main body is movably connected with a telescopic rod through the adjusting groove, and the bottom of the telescopic rod is fixedly connected with a sliding rod. One side of the telescopic rod is fixedly connected with a fixing frame, one side of the fixing frame is fixedly connected with a telescopic spring, one end of the telescopic spring is fixedly connected with a clamping plate, one side of the clamping plate is fixedly connected with a limiting plate, an adjusting motor is fixedly connected into the fixing body, and the driving end of the adjusting motor is fixedly connected with a forward lead screw and a reverse lead screw. Through the arrangement of the fixing frame, the telescopic spring, the clamping plate and the limiting plate, a worker can conveniently install circuit boards of different models and sizes, meanwhile, the tested circuit boards can be conveniently detached, and therefore the testing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing devices, in particular to a fixing device for testing a circuit board. Background Art

[0002] The names of circuit boards include: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high-frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra-thin circuit board, printed (copper etching technology) circuit board, etc. Circuit boards make circuits miniaturized and intuitive, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. Circuit boards can be called printed circuit boards or printed circuit boards, FPC circuit boards and hard-soft boards. With the continuous improvement of science and technology, electronic products are being used more and more widely, but during production and use, electronic products are usually tested. The commonly used method is to use circuit boards for testing, and a fixing device is required to clamp the circuit board during the test.

[0003] The patent document with the prior art publication number CN213689678U provides a circuit board testing fixture, including a base, a T-slot is horizontally opened at the center position of the top surface of the base, and fixing blocks are arranged at both ends of the T-slot, the top ends of the two groups of the fixing blocks are welded with mounting rings, and the bottom ends of the two groups of the fixing blocks are threaded with fixing nuts, and the two groups of the mounting rings are provided with fixing columns, and the two groups of the fixing columns are provided with fixing mechanisms on the side faces facing each other, and lamp holders and storage tubes are respectively welded on the top surfaces of the two groups of the mounting rings, a universal bamboo tube is fixedly connected to the top surface of the lamp holder, and a lighting lamp is fixedly connected to the top of the universal bamboo tube, and a component box is arranged at the center position of the top surface of the base. The circuit board testing fixture is convenient for disassembly and transportation, convenient for adjusting the angle of the circuit board, improved functionality, convenient for storing components, and improved applicability.

[0004] However, during the use of the existing circuit board test fixture, since the models of circuit boards are different and the sizes are also different, when the staff installs the circuit board, they need to adjust the placement position to a suitable size before placing the circuit board in a fixed position and then manually fix it. However, this installation method has cumbersome steps, which affects the efficiency of circuit board testing. For this reason, we propose a circuit board test fixture. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies of the prior art, the utility model provides a fixing device for testing a circuit board to solve the problems raised in the above background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a fixing device for testing a circuit board, comprising a fixing body, wherein the four outer corners of the fixing body are fixedly connected with mounting components, an adjusting slot is provided on the top of the fixing body, a telescopic rod is movably connected to the top of the fixing body through the adjusting slot, a sliding rod is fixedly connected to the bottom of the telescopic rod, a fixing frame is fixedly connected to one side of the telescopic rod, a telescopic spring is fixedly connected to one end of the telescopic spring, a clamp is fixedly connected to one side of the clamp, a limiting plate is fixedly connected to the inside of the fixing body, an adjusting motor is fixedly connected to the driving ends of the adjusting motor, respectively, a forward screw rod and a reverse screw rod are fixedly connected to the outer sides of the forward screw rod and the reverse screw rod are threadedly connected with a nut seat.

[0009] Preferably, the mounting assembly comprises a mounting plate and a mounting opening, the mounting plate is fixedly connected to the four outer corners of the mounting plate, and the mounting opening is opened on the top of the mounting plate.

[0010] Preferably, two nut seats are provided, and both nut seats are fixedly connected to the sliding rod.

[0011] Preferably, the clamping plate gradually becomes larger from top to bottom, and the clamping plate is movably connected to the fixing frame.

[0012] Preferably, the outer width of the slide bar matches the inner width of the adjustment slot, and the slide bar is movably connected to the adjustment slot.

[0013] Preferably, a plurality of the telescopic springs are provided, the plurality of the telescopic springs are arranged at equal intervals, and the plurality of the telescopic springs are the same in size.

[0014] (III) Beneficial effects

[0015] The utility model provides a fixing device for testing a circuit board, which has the following beneficial effects:

[0016] (1) This circuit board test fixture has a fixed frame, a telescopic spring, a clamping plate and a limit plate. When using the circuit board test fixture, the staff starts the adjustment motor according to the size of the circuit board. The adjustment motor drives the forward screw and the reverse screw to rotate, and the nut seat drives the telescopic rod to move inward or outward through the adjustment slot and the slide rod due to the rotation direction of the forward screw and the reverse screw, thereby adjusting the distance between the fixed frames. After the adjustment, the staff places the circuit board on the clamping plate and presses the circuit board from top to bottom. At this time, the circuit board will squeeze the clamping plate, and the telescopic spring on the back of the clamping plate will shrink. When the circuit board is installed in place, the telescopic spring pushes the clamping plate to clamp and fix the circuit board. When the circuit board is not placed evenly, it only needs to push the circuit board backward, and the circuit board will support the limit plate, so that the circuit board is placed evenly. This is convenient for the staff to install circuit boards of different models and sizes, and it is also convenient to disassemble the tested circuit boards, thereby improving the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the fixing frame of the utility model;

[0019] Figure 3 It is a partial structural schematic diagram of the fixed main body of the utility model;

[0020] Figure 4 It is a partial structural schematic diagram of the telescopic rod of the utility model.

[0021] In the figure: 1. Fixed body; 2. Mounting plate; 3. Mounting port; 4. Adjustment slot; 5. Telescopic rod; 6. Sliding rod; 7. Fixed frame; 701. Telescopic spring; 8. Clamp; 801. Limiting plate; 9. Adjustment motor; 10. Forward screw; 11. Reverse screw; 12. Nut seat. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4The utility model provides a technical solution: a fixing device for testing a circuit board, comprising a fixing body 1, the four outer corners of the fixing body 1 are fixedly connected with mounting components, the top of the fixing body 1 is provided with an adjusting slot 4, the top of the fixing body 1 is movably connected with a telescopic rod 5 through the adjusting slot 4, the bottom of the telescopic rod 5 is fixedly connected with a sliding rod 6, one side of the telescopic rod 5 is fixedly connected with a fixing frame 7, one side of the fixing frame 7 is fixedly connected with a telescopic spring 701, one end of the telescopic spring 701 is fixedly connected with a clamping plate 8, one side of the clamping plate 8 is fixedly connected with a limiting plate 801, the inside of the fixing body 1 is fixedly connected with an adjusting motor 9, the driving ends of the adjusting motor 9 are respectively fixedly connected with a forward screw rod 10 and a reverse screw rod 11, and the outer sides of the forward screw rod 10 and the reverse screw rod 11 are threadedly connected with a nut seat 12.

[0024] In this embodiment, specifically, the mounting assembly includes a mounting plate 2 and a mounting opening 3. The mounting plate 2 is fixedly connected at the four outer corners of the mounting plate 2. The mounting opening 3 is opened on the top of the mounting plate 2. The bolts are installed in the mounting opening 3 of the mounting plate 2, and then the bolts are tightened to firmly fix the mounting plate 2 and the test equipment together.

[0025] In the present embodiment, specifically, two nut seats 12 are provided, and both nut seats 12 are fixedly connected to the slide rod 6. By starting the adjusting motor 9, the adjusting motor 9 drives the forward screw rod 10 and the reverse screw rod 11 to rotate, and the nut seat 12 drives the telescopic rod 5 to move inward or outward through the adjusting slot 4 and the slide rod 6 due to the rotation direction of the forward screw rod 10 and the reverse screw rod 11, thereby adjusting the distance between the fixed frames 7.

[0026] In this embodiment, specifically, the clamping plate 8 gradually becomes larger from top to bottom, and the clamping plate 8 is movably connected to the fixing frame 7. The circuit board is placed on top of the clamping plate 8, and the circuit board is pressed from top to bottom. At this time, the circuit board will squeeze the clamping plate 8, and the telescopic spring 701 on the back of the clamping plate 8 will shrink, and the circuit board can be installed in place.

[0027] In this embodiment, specifically, the outer width of the slide bar 6 is matched with the inner width of the adjustment slot 4, and the slide bar 6 is movably connected to the adjustment slot 4. By moving the slide bar 6 in the adjustment slot 4, the telescopic rod 5 moves more smoothly.

[0028] In the present embodiment, specifically, a plurality of telescopic springs 701 are provided, and the plurality of telescopic springs 701 are arranged equidistantly and have the same size. By utilizing the resilience of the telescopic springs 701, when the circuit board is placed on the inner side of the clamping plate 8, the telescopic springs 701 push the clamping plate 8 to clamp and fix the circuit board.

[0029] Working principle: After the utility model is installed, first check the installation, fixation and safety protection of the utility model. When using the circuit board test fixture, the staff starts the adjusting motor 9 according to the size of the circuit board. The adjusting motor 9 drives the forward screw rod 10 and the reverse screw rod 11 to rotate, and the nut seat 12 will drive the telescopic rod 5 to move inward or outward through the adjusting slot 4 and the slide bar 6 due to the rotation direction of the forward screw rod 10 and the reverse screw rod 11, so as to adjust the distance between the fixing frames 7. After the adjustment, the staff places the circuit board on the top of the clamping plate 8 and presses the circuit board from top to bottom. At this time, the circuit board will squeeze the clamping plate 8, and the telescopic spring 701 on the back of the clamping plate 8 will shrink. When the circuit board is installed in place, the telescopic spring 701 pushes the clamping plate 8 to clamp and fix the circuit board. When the circuit board is not placed neatly, it only needs to push the circuit board backward, and the circuit board will resist the limit plate 801, so that the circuit board is placed flat, thus completing the use process of the utility model. The utility model has a simple structure and is safe and convenient to use.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A fixture for testing a circuit board, comprising a fixture body (1), characterized in that: The four corners of the outer side of the fixed body (1) are fixedly connected with mounting components, the top of the fixed body (1) is provided with an adjustment slot (4), the top of the fixed body (1) is movably connected with a telescopic rod (5) through the adjustment slot (4), the bottom of the telescopic rod (5) is fixedly connected with a sliding rod (6), one side of the telescopic rod (5) is fixedly connected with a fixing frame (7), one side of the fixing frame (7) is fixedly connected with a telescopic spring (701), one end of the telescopic spring (701) is fixedly connected with a clamping plate (8), one side of the clamping plate (8) is fixedly connected with a limiting plate (801), the interior of the fixed body (1) is fixedly connected with an adjustment motor (9), the driving end of the adjustment motor (9) is respectively fixedly connected with a forward screw rod (10) and a reverse screw rod (11), and the outer sides of the forward screw rod (10) and the reverse screw rod (11) are threadedly connected with a nut seat (12).

2. The circuit board testing fixture according to claim 1, characterized in that: The mounting assembly comprises a mounting plate (2) and a mounting opening (3); the mounting plate (2) is fixedly connected to the four outer corners of the mounting plate (2); and the mounting opening (3) is provided at the top of the mounting plate (2).

3. The circuit board testing fixture according to claim 1, characterized in that: Two nut seats (12) are provided, and both nut seats (12) are fixedly connected to the slide rod (6).

4. The circuit board testing fixture according to claim 1, characterized in that: The clamping plate (8) gradually becomes larger from top to bottom, and the clamping plate (8) is movably connected to the fixing frame (7).

5. The circuit board testing fixture according to claim 1, characterized in that: The outer width of the slide bar (6) is matched with the inner width of the adjustment groove (4), and the slide bar (6) is movably connected to the adjustment groove (4).

6. The circuit board testing fixture according to claim 1, characterized in that: A plurality of the telescopic springs (701) are provided, and the plurality of telescopic springs (701) are arranged at equal intervals, and the plurality of telescopic springs (701) are of the same size.

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