Flexible clamping device for glue pouring of printed board

Abstract

The utility model provides a flexible clamping device for glue pouring of a printed board, and belongs to the field of printed board production. The device comprises a fixed placement platform, flexible sliding clamping platforms, springs and a limiting anti-disengaging device, the two flexible sliding clamping platforms are arranged on the fixed placement platform in parallel at intervals, two first spring mounting grooves which are oppositely formed are formed in the top of the fixed placement platform, and second spring mounting grooves are formed in the bottoms of the flexible sliding clamping platforms; the second spring mounting groove and the first spring mounting groove face the same direction and form a cavity, the spring is horizontally arranged in the cavity in the direction of the first spring mounting groove, one end of the spring is fixedly connected with the first spring mounting groove, and the other end of the spring is fixedly connected with the second spring mounting groove. And the limiting anti-falling device is used for fixing the flexible sliding clamping platform on the fixed placing platform. By adopting the flexible clamping device for glue pouring of the printed board provided by the embodiment of the utility model, the problems of inconvenience in operation and lower processing efficiency in the prior art can be solved.

Description

Technical Field

[0001] This utility model relates to the field of printed circuit board production, and in particular to a flexible clamping device for printing circuit board glue application. Background Technology

[0002] Printed circuit boards (PCBs) are the support structures for electronic components and the carriers of electrical connections between them, widely used in electronic devices. PCBs meet the diverse needs of electronic devices and are widely used in computers, electronic instruments, communication equipment, aerospace, and many other fields. In miniaturized electronic devices, not only are there connections between devices via PCBs, but numerous wires also run through them. When encountering complex alternating conditions such as impacts and vibrations, these wires are subjected to external forces directly acting on the device surface. Due to limited internal space, it is impossible to create openings to bundle and secure the wire harnesses. To secure the wire harnesses and protect the devices, adhesive is applied to the surface of the PCB. During the production process, PCBs undergo cleaning and a three-proof coating (conformal coating, anti-fouling coating, and waterproofing coating). After the three-proof coating, adhesive is applied to cover the device surface with a certain thickness. The PCB must be laid flat to ensure uniform thickness of the adhesive during natural flow. The weight and thickness of the adhesive are specified by the production process. If the PCB is not placed horizontally, some adhesive will flow to one spot, resulting in excessively thick adhesive in that area, affecting the adhesive quality and thus the overall product quality.

[0003] In existing technologies, when potting printed circuit boards, the process is usually carried out manually by holding the board by hand. This is difficult when potting smaller circuit boards, resulting in low potting efficiency.

[0004] The existing printed circuit board potting process is inconvenient and has low processing efficiency because it involves manually handling the printed circuit board. Utility Model Content

[0005] This utility model provides a flexible clamping device for printing board potting, which solves the problems of inconvenient operation and low processing efficiency in the prior art. The technical solution is as follows:

[0006] A flexible clamping device for printing board potting includes: a fixed placement platform, a flexible sliding clamping platform, a spring, and a limiting and anti-detachment device.

[0007] Two flexible sliding clamping platforms are arranged parallel to each other on the fixed placement platform. Two first spring mounting slots are formed on the top of the fixed placement platform, and these slots are spaced apart and facing each other. A second spring mounting slot is formed on the bottom of each flexible sliding clamping platform. The second spring mounting slot faces the same direction as the first spring mounting slot and forms a cavity. A spring is horizontally positioned in the cavity along the direction of the first spring mounting slot. One end of the spring is fixedly connected to the first spring mounting slot, and the other end is fixedly connected to the second spring mounting slot. The spring drives the two flexible sliding clamping platforms to move towards each other. The limiting and anti-detachment device is used to fix the flexible sliding clamping platforms on the fixed placement platform.

[0008] Optionally, two first spring mounting slots arranged at intervals and facing each other constitute a group, and multiple groups of first spring mounting slots are provided, with the multiple groups of first spring mounting slots arranged at intervals along their width direction.

[0009] Optionally, the limiting and anti-detachment device includes a limiting bolt and a nut. The flexible sliding clamping platform has a bolt hole, and the fixed placement platform has a sliding groove arranged along the length direction of the first spring mounting groove. The limiting bolt passes through the bolt hole and the sliding groove, and the bottom end of the limiting bolt is slidably disposed in the sliding groove. The nut is located at the bottom of the fixed placement platform and is threadedly connected to the limiting bolt.

[0010] Optionally, the bottom of the flexible sliding clamping platform is provided with a limiting protrusion, and the fixed placement platform is provided with a limiting groove arranged along the length direction of the first spring mounting groove, and the limiting protrusion is slidably disposed in the limiting groove.

[0011] Optionally, a limiting post is provided on the end wall of the groove where the spring is fixed to the second spring mounting groove. The limiting post passes through the spring and is arranged along the length direction of the second spring mounting groove.

[0012] Optionally, a limiting plate is provided at one end of the limiting post near the groove wall of the second spring mounting groove. The limiting plate is perpendicular to the limiting post, and one end of the spring is fixedly connected to the second spring mounting groove through the limiting plate.

[0013] Optionally, the fixed placement platform is provided with a placement slot, which is perpendicular to the first spring mounting slot and located between the two first spring mounting slots.

[0014] Optionally, the fixed placement platform is provided with a mounting base at its bottom.

[0015] Optionally, the mounting base is provided with a collection groove, which is located below the placement groove.

[0016] The beneficial effects of the technical solution provided by this utility model embodiment include at least the following:

[0017] This utility model provides a flexible clamping device for printing board glue application. A spring is positioned within a cavity formed by a first spring mounting groove and a second spring mounting groove, allowing a flexible sliding clamping platform to slide on a fixed placement platform. This structure allows for the application of varying tensile forces to the flexible sliding clamping platforms according to the size of the printed board, thus separating the two platforms by different distances. A limiting anti-detachment device secures one of the flexible sliding clamping platforms. By simply adjusting the position of the other flexible sliding clamping platform, printed boards of different sizes can be placed on the fixed placement platform between the two platforms. Releasing the tension of the other flexible sliding clamping platform ensures the printed board is stably clamped between the two platforms. By adjusting the position of the limiting anti-detachment device and the spring force, the clamping force of the flexible sliding clamping platform on the printed board can be controlled, enabling stable clamping of printed boards of different sizes. This effectively solves the problems of inconvenient operation and low processing efficiency in existing technologies. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the device provided in this embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure after removing one side of the flexible sliding clamping platform provided in this embodiment of the utility model;

[0021] Figure 3 This is provided by the embodiment of the present utility model. Figure 2 A magnified structural diagram at point A;

[0022] Figure 4 This is a schematic diagram of the overall bottom structure of the device provided in this embodiment of the utility model;

[0023] Figure 5 This is a schematic diagram of the bottom structure of the flexible sliding clamping platform provided in this embodiment of the utility model;

[0024] Figure 6 This is a schematic diagram of the limiting and anti-detachment device provided in an embodiment of the present utility model.

[0025] In the diagram: 1-Fixed placement platform; 11-First spring mounting slot; 12-Slide groove; 13-Limiting groove; 14-Placement groove; 2-Flexible sliding clamping platform; 21-Second spring mounting slot; 22-Bolt hole; 23-Limiting protrusion; 3-Spring; 4-Limiting and anti-detachment device; 41-Limiting bolt; 42-Nut; 5-Limiting post; 51-Limiting plate; 6-Mounting base; 61-Collection groove. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0027] Figure 1 This is a schematic diagram of the overall structure of the device provided in this embodiment of the utility model; Figure 2 This is a schematic diagram of the overall structure after removing one side of the flexible sliding clamping platform provided in this embodiment of the utility model; Figure 3 This is provided by the embodiment of the present utility model. Figure 2 A magnified structural diagram at point A; Figure 4 This is a schematic diagram of the overall bottom structure of the device provided in this embodiment of the utility model; Figure 5 This is a schematic diagram of the bottom structure of the flexible sliding clamping platform provided in this embodiment of the utility model; Figure 6 This is a schematic diagram of the limiting and anti-detachment device provided in an embodiment of this utility model. Figures 1 to 6 The printed circuit board encapsulation flexible clamping device shown includes: a fixed placement platform 1, a flexible sliding clamping platform 2, a spring 3, and a limiting and anti-detachment device 4. Two flexible sliding clamping platforms 2 are arranged parallel to each other on the fixed placement platform 1. Two first spring mounting slots 11 are opened on the top of the fixed placement platform 1 and are arranged facing each other at intervals. A second spring mounting slot 21 is opened on the bottom of the flexible sliding clamping platform 2. The second spring mounting slot 21 and the first spring mounting slot 11 face the same direction and form a cavity. The spring 3 is horizontally arranged in the cavity along the direction of the first spring mounting slot 11. One end of the spring 3 is fixedly connected to the first spring mounting slot 11 and the other end is fixedly connected to the second spring mounting slot 21. The spring 3 is used to drive the two flexible sliding clamping platforms 2 to move towards each other. The limiting and anti-detachment device 4 is used to fix the flexible sliding clamping platform 2 on the fixed placement platform 1.

[0028] For example, in this embodiment of the present invention, two flexible sliding clamping platforms 2 are movably arranged on the fixed placement platform 1, which can be close to or far from each other. One end of the spring 3 near the middle of the fixed placement platform 1 is fixedly connected to the second spring mounting groove 21. Only the upper half of the spring 3 at this end contacts the groove wall of the second spring mounting groove 21. The other end of the spring 3 away from the middle of the fixed placement platform 1 is fixedly connected to the first spring mounting groove 11. Only the lower half of the spring 3 at this end contacts the groove wall of the first spring mounting groove 11. By applying opposite tensions to the two flexible sliding clamping platforms 2, both springs 3 are compressed, creating a gap between them. Depending on the size of the printed circuit board to be clamped, one of the flexible sliding clamping platforms 2 is first fixed to the fixed placement platform 1 using the limiting anti-detachment device 4. At this time, the gap between the two flexible sliding clamping platforms 2 needs to be slightly larger than the width of the printed circuit board to facilitate placing the printed circuit board between the two flexible sliding clamping platforms 2. The fixed placement platform 1 provides support for the printed circuit board. Then, the tension on the other flexible sliding clamping platform 2 is slowly released, causing the flexible sliding clamping platform 2 to apply clamping force to the printed circuit board, so that the printed circuit board is stably clamped and fixed on the fixed placement platform 1, allowing the encapsulation process to continue. By controlling the relative positions of the limiting anti-detachment device 4 to fix the flexible sliding clamping platform 2 and the fixed placement platform 1, the clamping force of the two flexible sliding clamping platforms 2 on the printed circuit board can be changed, thereby preventing the printed circuit board from flipping due to excessive clamping force. On the other hand, the above purpose can also be achieved by changing the length and elasticity of the spring 3. Compared with the traditional technology of manually holding the printed circuit board for glue filling, it is difficult to ensure that the printed circuit board remains completely horizontal during the hand clamping process. The clamping device in this embodiment can stably clamp the printed circuit board through the flexible sliding clamping platform 2. As long as the fixed placement platform 1 is a horizontal platform, the printed circuit board can be placed horizontally, preventing errors during manual hand operation, thereby improving the convenience of operation. On the other hand, multiple printed circuit boards of the same width can be placed between the two flexible sliding clamping platforms 2 along the direction perpendicular to the movement of the flexible sliding clamping platform 2, so that multiple printed circuit boards can be clamped at the same time for the glue filling process, thereby improving the processing efficiency.

[0029] Optionally, two first spring mounting slots 11 arranged at intervals and facing each other constitute a group, and multiple groups of first spring mounting slots 11 are provided, with the multiple groups of first spring mounting slots 11 arranged at intervals along their width direction.

[0030] Exemplary, in embodiments of this utility model, such as Figure 1 and Figure 2As shown, two sets of first spring mounting slots 11 are provided, and correspondingly, each flexible sliding clamping platform 2 is also provided with two second spring mounting slots 21. With two sets of first spring mounting slots 11, each flexible sliding clamping platform 2 is controlled by two springs 3 when sliding on the fixed placement platform 1, thus allowing the flexible sliding clamping platform 2 to slide more stably on the fixed placement platform 1, thereby improving the stability of the device. On the other hand, when multiple printed circuit boards are simultaneously clamped between two flexible sliding clamping platforms 2, in order to make the clamping force of the flexible sliding clamping platform 2 on the multiple printed circuit boards more uniform, multiple sets of first spring mounting slots 11 and second spring mounting slots 21 are provided, each containing a spring. This makes the clamping force provided by the springs more stable, further improving the clamping stability of the device.

[0031] Optionally, the limiting anti-detachment device 4 includes a limiting bolt 41 and a nut 42. The flexible sliding clamping platform 2 has a bolt hole 22, and the fixed placement platform 1 has a slide groove 12 arranged along the length direction of the first spring mounting groove 11. The limiting bolt 41 passes through the bolt hole 22 and the slide groove 12. The bottom end of the limiting bolt 41 is slidably set in the slide groove 12. The nut 42 is located at the bottom of the fixed placement platform 1 and is threadedly connected to the limiting bolt 41.

[0032] Exemplary, in embodiments of this utility model, such as Figure 2 , Figure 4 and Figure 5 As shown, when the flexible sliding clamping platform 2 needs to slide on the fixed placement platform 1, the nut 42 and the limiting bolt 41 are not fully engaged. At this time, the limiting bolt 41 can slide along with the flexible sliding clamping platform 2 in the slide groove 12. When it is necessary to fix the flexible sliding clamping platform 2 to the fixed placement platform 1, the nut 42 is tightened from the bottom of the fixed placement platform 1, so that the nut 42 applies a tightening force to the fixed placement platform 1 and the flexible sliding clamping platform 2, increasing the friction between the fixed placement platform 1 and the flexible sliding clamping platform 2, thereby limiting the relative displacement between the fixed placement platform 1 and the flexible sliding clamping platform 2, and thus fixing the flexible sliding clamping platform 2 to the fixed placement platform 1. By setting this structure, the structure is simple and the operation is convenient. By tightening or loosening the nut 42, the relative fixation or relative movement between the flexible sliding clamping platform 2 and the fixed placement platform 1 can be achieved, thereby further improving the ease of operation of this device.

[0033] Optionally, the bottom of the flexible sliding clamping platform 2 is provided with a limiting protrusion 23, and the fixed placement platform 1 is provided with a limiting groove 13 arranged along the length direction of the first spring mounting groove 11, and the limiting protrusion 23 is slidably disposed in the limiting groove 13.

[0034] Exemplary, in embodiments of this utility model, such as Figure 2 and Figure 5 As shown, by setting the limiting protrusion 23 to cooperate with the limiting groove 13, a guiding effect can be provided. When the flexible sliding clamping platform 2 slides on the fixed placement platform 1, the guiding force is provided not only by the spring 3, but also by the limiting protrusion 23 sliding in the limiting groove 13. This makes the flexible sliding clamping platform 2 slide more stably on the fixed placement platform 1, thereby further improving the stability of the device.

[0035] Optionally, a limiting post 5 is provided on the end wall of the groove where the spring 3 is fixed to the second spring mounting groove 21. The limiting post 5 passes through the spring 3 and is arranged along the length direction of the second spring mounting groove 21.

[0036] Exemplary, in embodiments of this utility model, such as Figure 3 and Figure 6 As shown, by setting the limiting post 5, the spring 3 can be guided when it is compressed, preventing the spring 3 from twisting during the compression process. On the other hand, the other end of the limiting post 5 is suspended. When the spring 3 is compressed to a certain extent, the other end of the limiting post 5 will abut against the groove wall of the first spring mounting groove 11, thereby limiting the further compression of the spring 3 and preventing the excessive compression of the spring 3 from causing excessive clamping force on the printed circuit board. By setting the limiting post 5, the maximum stroke of the spring 3 can be limited, thereby further improving the ease of operation of this device.

[0037] Optionally, a limiting plate 51 is provided at one end of the limiting post 5 near the groove wall of the second spring mounting groove 21. The limiting plate 51 is perpendicular to the limiting post 5, and one end of the spring 3 is fixedly connected to the second spring mounting groove 21 through the limiting plate 51.

[0038] Exemplary, in embodiments of this utility model, such as Figure 3 and Figure 6 As shown, by setting a limiting plate 51, the spring 3 can be connected to the second spring mounting groove 21 through the limiting plate 51, thereby increasing the contact area between the spring 3 and the second spring mounting groove 21. This makes the force applied to the spring 3 by the second spring mounting groove 21 more stable, thereby further improving the stability of the device.

[0039] Optionally, a placement slot 14 is provided on the fixed placement platform 1. The placement slot 14 is perpendicular to the first spring mounting slot 11 and is located between the two first spring mounting slots 11.

[0040] Exemplarily, in this embodiment of the invention, the placement slot 14, such as Figure 1As shown, the printed circuit board can be placed on the placement slot 14. During the glue-pouring operation, some glue may overflow from the printed circuit board. The placement slot 14 allows the glue to fall from the placement slot 14 into the external space, preventing it from accumulating on the fixed placement platform 1 and affecting other printed circuit boards, thereby improving the practicality of the device. On the other hand, by providing the placement slot 14, it is also more convenient to place and remove the printed circuit board. The printed circuit board can be grasped by hand or tool by reaching into the placement slot 14, thereby further improving the ease of operation of the device.

[0041] Optionally, a mounting base 6 is provided at the bottom of the fixed placement platform 1.

[0042] Exemplarily, in this embodiment of the present invention, by providing a mounting base 6, such as Figure 1 As shown, the fixed placement platform 1 can be suspended, which facilitates some operations on the device, such as tightening the nut 42 located at the bottom of the fixed placement platform 1, thereby further improving the ease of operation of the device.

[0043] Optionally, the mounting base 6 is provided with a collection groove 61, which is located below the placement groove 14.

[0044] Exemplarily, in this embodiment of the present invention, as in this embodiment, Figure 1 As shown, the collection tank 61 is a through-slot, dividing the fixed placement platform 1 into two parts. During the glue-filling process of the printed circuit board, the overflowing glue drips down from the placement tank 14. By creating the collection tank 61, a plastic bag or container can be placed inside to collect the dripping glue, thus enabling the glue to be reused and preventing the glue from polluting the external environment, thereby further improving the practicality of this device.

[0045] For example, in this embodiment of the present invention, by applying opposite pulling forces to the two flexible sliding clamping platforms 2, both springs 3 are compressed, thereby causing the two flexible sliding clamping platforms 2 to move in opposite directions and generate a gap. During this process, the limiting post 5 provides a guiding and limiting function for the spring 3, and the limiting protrusion 23 and the limiting groove 13 provide a guiding function for the movement of the flexible sliding clamping platform 2. Depending on the size of the printed circuit board to be clamped, first tighten the nut 42 to fix one of the flexible sliding clamping platforms 2 onto the fixed placement platform 1. At this time, the distance between the two flexible sliding clamping platforms 2 should be slightly larger than the width of the printed circuit board to facilitate placing the printed circuit board between the two flexible sliding clamping platforms 2 and placing the printed circuit board on the placement groove 14. At this time, the fixed placement platform 1 provides support for the printed circuit board. Then, slowly release the tension on the other flexible sliding clamping platform 2 so that the flexible sliding clamping platform 2 applies clamping force to the printed circuit board, so that the printed circuit board is stably clamped and fixed on the fixed placement platform 1, so that the glue pouring process can continue to be performed on the printed circuit board. When the printed circuit board is glued, the overflowing glue falls from the placement groove 14 into the container in the collection groove 61 for collection. The collected glue can be reused.

[0046] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising” or “including” and similar terms mean that the elements or objects preceding “comprising” or “including” encompass the elements or objects listed following “comprising” or “including” and their equivalents, and do not exclude other elements or objects. The terms “connected” or “linked” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0047] The above description is only an optional embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flexible clamping device for printing board glue application, characterized in that, include: The system includes a fixed placement platform (1), a flexible sliding clamping platform (2), a spring (3), and a limiting and anti-detachment device (4). Two flexible sliding clamping platforms (2) are arranged parallel to each other on the fixed placement platform (1). Two first spring mounting slots (11) are opened on the top of the fixed placement platform (1) and are arranged facing each other at intervals. A second spring mounting slot (21) is opened at the bottom of the flexible sliding clamping platform (2). The second spring mounting slot (21) and the first spring mounting slot (11) face the same direction and form a cavity. The spring (3) is horizontally arranged in the cavity along the direction of the first spring mounting slot (11). One end of the spring (3) is fixedly connected to the first spring mounting slot (11) and the other end is fixedly connected to the second spring mounting slot (21). The spring (3) is used to drive the two flexible sliding clamping platforms (2) to move towards each other. The limiting and anti-detachment device (4) is used to fix the flexible sliding clamping platform (2) on the fixed placement platform (1).

2. The flexible clamping device for printing board potting according to claim 1, characterized in that, Two first spring mounting slots (11) arranged at intervals and facing each other constitute a group. Multiple groups of first spring mounting slots (11) are provided, and the multiple groups of first spring mounting slots (11) are arranged at intervals along their width direction.

3. The flexible clamping device for printing board potting according to claim 1, characterized in that, The limiting anti-detachment device (4) includes a limiting bolt (41) and a nut (42). The flexible sliding clamping platform (2) is provided with a bolt hole (22). The fixed placement platform (1) is provided with a sliding groove (12) arranged along the length direction of the first spring mounting groove (11). The limiting bolt (41) passes through the bolt hole (22) and the sliding groove (12). The bottom end of the limiting bolt (41) is slidably disposed in the sliding groove (12). The nut (42) is located at the bottom of the fixed placement platform (1) and is threadedly connected to the limiting bolt (41).

4. The flexible clamping device for printing board potting according to claim 1, characterized in that, The flexible sliding clamping platform (2) is provided with a limiting protrusion (23) at the bottom, and the fixed placement platform (1) is provided with a limiting groove (13) arranged along the length direction of the first spring mounting groove (11), and the limiting protrusion (23) is slidably disposed in the limiting groove (13).

5. The flexible clamping device for printing board potting according to claim 1, characterized in that, A limiting post (5) is provided on the end wall of the groove where the spring (3) is fixed to the second spring mounting groove (21). The limiting post (5) passes through the spring (3) and is arranged along the length direction of the second spring mounting groove (21).

6. The printed circuit board potting flexible clamping device according to claim 5, characterized in that, A limiting plate (51) is provided at one end of the limiting post (5) near the groove wall of the second spring mounting groove (21). The limiting plate (51) is perpendicular to the limiting post (5). One end of the spring (3) is fixedly connected to the second spring mounting groove (21) through the limiting plate (51).

7. The flexible clamping device for printing board potting according to claim 1, characterized in that, The fixed placement platform (1) is provided with a placement slot (14), which is perpendicular to the first spring mounting slot (11) and located between the two first spring mounting slots (11).

8. The flexible clamping device for printing board potting according to claim 7, characterized in that, The fixed placement platform (1) is provided with a mounting base (6) at its bottom.

9. A flexible clamping device for printing board potting according to claim 8, characterized in that, The mounting base (6) is provided with a collection groove (61), which is located below the placement groove (14).

Images