A PCB board dismounting tool

Abstract

This utility model relates to the field of semiconductor testing, specifically a PCB board removal tool including a fixed bracket. A guide rail is vertically fixed to the fixed bracket, and a support plate is slidably connected to the guide rail. Hooks are hinged to both sides of the support plate, with the barbs on both sides of the support plate facing each other. A return spring connected to the hooks is provided on the support plate. A fixed plate is fixed to the guide rail, with the support plate located between the bracket and the fixed plate. A bolt is rotatably connected to the fixed plate, passing through the support plate and threadedly connected to it. When using this PCB board removal tool, the bolt drives the support plate to move up and down along the guide rail, thereby moving the two hooks up and down. The force exerted by the two hooks on the PCB board is relatively uniform, and the calibration board slot and the PCB board pins are less likely to be damaged.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor testing, specifically a PCB board removal tool. Background Technology

[0002] Current calibration board designs achieve different board calibration functions by installing different PCB boards. However, the PCB boards are manually inserted and removed each time, which often leads to damage to the calibration board slots and PCB board pins due to uneven force. People have been researching how to solve this problem. Summary of the Invention

[0003] To address the problems existing in the prior art, this utility model provides a PCB board removal tool to solve the aforementioned technical problems.

[0004] To achieve the aforementioned objectives, this utility model provides the following technical solution:

[0005] A PCB board removal tool includes a fixed bracket, a guide rail fixed vertically on the fixed bracket, a support plate slidably connected to the guide rail, hooks hinged to both sides of the support plate, barbs on both sides of the support plate being arranged opposite to each other, and a return spring connected to the hooks on the support plate; a fixed plate is fixed on the guide rail, the support plate being located between the bracket and the fixed plate, and a bolt is rotatably connected to the fixed plate, the bolt passing through the support plate and threadedly connected to the support plate.

[0006] Optionally, the fixed bracket includes a horizontal plate and support legs fixed below the horizontal plate.

[0007] Optionally, the horizontal plate is square, with support legs fixed at each of the four corners; the fixing plate is square, with guide rails connected at each of the four corners; the support plate has through holes corresponding to the positions of the guide rails, and a sliding sleeve is fixed in the through hole; the guide rail passes through the corresponding sliding sleeve and is slidably connected to the support plate.

[0008] Optionally, a limiting sleeve is provided on the guide rail at a position between the fixed plate and the support plate, and the limiting sleeve is slidably connected to the guide rail.

[0009] Optionally, the fixing plate is fixed to the top of the guide rail.

[0010] Optionally, the hook includes a hook body and an operating part, and the support plate is connected to the hook at the bottom end of the operating part; the spring is located above the hinge position, with one end connected to the operating part and the other end connected to the support plate.

[0011] When using the PCB board removal tool provided by this utility model, the fixture is located below the support. When the PCB board needs to be removed, the support plate can be moved up and down along the guide rail by tightening the bolts, which in turn moves the hooks up and down. When the hooks move down, pressing the hook compression return spring will open the hooks on both sides of the support plate at a certain angle, making it easier for the bottom of the hooks to move under the PCB board. When the bottom of the hooks moves under the PCB board, the hooks are released. Under the action of the return spring, the hooks hook the PCB board on both sides. At this time, controlling the support plate to move the hooks up will gradually pull out the PCB board. This structure moves the two hooks up and down by moving the support plate up and down along the guide rail with bolts. The force exerted by the two hooks on the PCB board is relatively uniform, and the calibration board slot and the PIN pins of the PCB board are not easily damaged. Attached Figure Description

[0012] Figure 1 A schematic diagram of the PCB board removal tool in use is shown in the embodiment, wherein the diagram is a perspective view.

[0013] Figure 2 It shows Figure 1 The front view in the middle;

[0014] Figure 3 It shows Figure 2 A partial sectional view in the document;

[0015] Figure 4 A schematic diagram of the hook structure is shown;

[0016] Marked in the attached diagram:

[0017] Fixed bracket 10, support leg 10-1, horizontal plate 10-2, guide rail 20, support plate 30, hook 40, hook body 40-1, operating part 40-2, return spring 50, fixed plate 60, bolt 70, limit sleeve 80, PCB board 90. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1, please refer to Figures 1-3The PCB board removal tool in this embodiment includes a fixed bracket 10, on which a guide rail 20 is fixed vertically. A support plate 30 is slidably connected to the guide rail. Hooks 40 are hinged to both sides of the support plate, and the barbs on both sides of the support plate are arranged opposite to each other. A return spring 50 connected to the hooks is provided on the support plate. A fixed plate 60 is fixed on the guide rail, and the support plate is located between the bracket and the fixed plate. Preferably, the fixed plate is fixed to the top of the guide rail. A bolt 70 is rotatably connected to the fixed plate, and the bolt passes through the support plate and is threadedly connected to the support plate. In this embodiment, the fixed bracket includes a horizontal plate 10-2 and support legs 10-1 fixed below the horizontal plate. The horizontal plate is square, and support legs are fixed at each of the four corners. The fixed plate is square, and guide rails are connected to each of the four corners. Through holes are provided on the support plate corresponding to the positions of the guide rails. Sliding sleeves 30-1 are fixed in the through holes, and the guide rails slide through the corresponding sliding sleeves and are slidably connected to the support plate.

[0020] When using the aforementioned PCB board removal tool, the fixture is located below the support. To remove a 90° section of the PCB board, the support plate is moved up and down along the guide rail by tightening the bolts. This causes the hooks to move up and down. As the hooks move downwards, pressing the hook compression return spring opens the hooks on both sides of the support plate at a certain angle, facilitating the bottom of the hooks to move under the PCB board. Once the bottom of the hooks is under the PCB board, the hooks are released. Under the action of the return spring, the hooks hook onto the PCB board on both sides. At this point, controlling the support plate to move the hooks upwards allows the PCB board to be gradually pulled out. This structure uses bolts to move the support plate up and down along the guide rail, causing the two hooks to move up and down. The force exerted by the two hooks on the PCB board is relatively even, reducing the risk of damage to the calibration board slot and the PIN pins of the PCB board.

[0021] In actual manufacturing, a limiting sleeve 80 can be set on the guide rail between the fixed plate and the support plate. The limiting sleeve is slidably connected to the guide rail. When the support plate rises to a certain position, the limiting sleeve abuts against the fixed plate above and against the support plate below, thereby limiting the support plate from moving further upward and achieving the function of limiting the support plate. This prevents the PCB board from being detached from the standard board and causing unnecessary work due to excessive tightening of bolts.

[0022] See Figure 4In this embodiment, the hook includes a hook body 40-1 and an operating part 40-2. The support plate is connected to the hook at the bottom end of the operating part. The spring is located above the hinge position, with one end connected to the operating part and the other end connected to the support plate. When the hook is pressed, the operating part is pressed to compress the spring. The end of the spring not connected to the hook can be directly connected to the support plate, or a fixing plate can be installed on the support plate and connected to that end. Alternatively, a groove for installing the spring can be provided on the top of the support plate. No specific limitation is made here. In addition, in this application, the return spring can also be a torsion spring. The installation of torsion springs is well known to those skilled in the art and will not be described in detail here.

[0023] As one implementation method, a blocking part can also be provided on the top of the hook body. For example, a square groove can be extended outward from the opposite side of the two hook bodies, and the top surface of the square groove forms a blocking part. In this way, after the hook body hooks the PCB board, the PCB board can be inserted into the standard board by controlling the support plate to descend. Compared with the manual operation method, the force on the PCB board can be relatively uniform, protecting the calibration board slot and the PIN pins of the PCB board from damage. Of course, during manufacturing, the connection position of the bolt and the support plate is preferably located at the center of the support plate, which is easy for those skilled in the art to understand and will not be elaborated here. In this application, the bolt is preferably an internal hex bolt.

[0024] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0025] It should be readily understood that “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0026] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PCB board removal tool, characterized in that, Includes a fixed bracket (10), on which a guide rail (20) is fixed in the vertical direction, and a support plate (30) is slidably connected to the guide rail. Hooks (40) are hinged on both sides of the support plate, and the barbs on both sides of the support plate are arranged opposite to each other. A return spring (50) connected to the hook is provided on the support plate. A fixing plate (60) is fixed on the guide rail. The support plate is located between the bracket and the fixing plate. A bolt (70) is rotatably connected to the fixing plate. The bolt passes through the support plate and is threadedly connected to the support plate.

2. The PCB board removal tool according to claim 1, characterized in that, The fixed bracket includes a horizontal plate (10-2) and a support leg (10-1) fixed below the horizontal plate.

3. The PCB board removal tool according to claim 2, characterized in that, The horizontal plate is square, and support legs are fixed at each of the four corners; The fixing plate is square, with guide rails connected to each of the four corners. The support plate has through holes corresponding to the positions of the guide rails, and a sliding sleeve (30-1) is fixed in the through hole. The guide rail passes through the corresponding sliding sleeve and is slidably connected to the support plate.

4. The PCB board removal tool according to claim 3, characterized in that, A limiting sleeve (80) is provided on the guide rail between the fixed plate and the support plate, and the limiting sleeve is slidably connected to the guide rail.

5. The PCB board removal tool according to claim 4, characterized in that, The fixing plate is fixed to the top of the guide rail.

6. The PCB board removal tool according to any one of claims 1-5, characterized in that, The hook includes a hook body (40-1) and an operating part (40-2). The support plate is connected to the hook at the bottom end of the operating part. The spring is located above the hinge position, with one end connected to the operating part and the other end connected to the support plate.

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