Adjustable circular printed board carrying tool

Abstract

The utility model relates to an adjustable circular printed board carrying tool which comprises a square tray, butterfly-shaped limiting nuts, supporting seats and adjusting grooves. The printed board supporting seats are in central symmetry with the center of the tray as the original point, meanwhile, adjusting grooves are formed in the center point of the square tray towards the outer side, the length of the square tray can be adjusted along the adjusting grooves so that the square tray can be matched with the size of a corresponding printed board, and after the square tray is adjusted through the adjusting grooves, butterfly-shaped limiting nuts are used for fastening and limiting the square tray. The size of the printed board support is set according to the process edge of the printed board so as to fix the printed board without damaging components. And the butterfly-shaped limiting nuts are adjusted in the adjusting grooves, so that the printed boards with different sizes can be fixed.

Description

Technical Field

[0001] This utility model belongs to the field of support fixtures, specifically relating to an adjustable circular printed circuit board support fixture. Background Technology

[0002] Mass-produced circular printed circuit boards contain high-value SiP chips. These chips have narrow, long leads that are easily damaged. Furthermore, since there are no surrounding components taller than them, the chip comes into contact with the work surface during the soldering of components and wires after soldering, making it highly susceptible to scratches and lead deformation.

[0003] In actual production, circular printed circuit boards are often locally elevated using tape, shims, etc. However, these methods cannot effectively secure the printed circuit boards, posing a risk of slippage during soldering. Furthermore, the boards need to be repositioned and elevated after each handling, which negatively impacts production efficiency. Utility Model Content

[0004] This utility model is an adjustable circular printed circuit board support fixture. The size can be adjusted according to the product size before placing the circular printed circuit board directly without the need for other fastening measures. It is convenient, quick and easy, and effectively protects the components on the product.

[0005] The above-mentioned objectives of this utility model are mainly achieved through the following technical solutions:

[0006] An adjustable circular printed circuit board support fixture includes a tray 1, N adjustable support seats 2, a limiting nut 3, and an adjustment groove 4. The N adjustable support seats 2 are symmetrical about the center of the tray 1. An adjustment groove 4 is provided at the contact point between the tray 1 and the adjustable support seats 2. The adjustable support seats 2 can slide along the adjustment groove 4 to adjust the support diameter. The adjustable support seats 2 are installed on the tray 1 by the limiting nut 3, where N is a positive integer.

[0007] The adjustable support 2 is L-shaped and includes a base plate and a vertical plate. The base plate and the vertical plate are perpendicular to each other, and the limiting nut 3 is installed on the base plate.

[0008] N takes values ​​from 4 to 8.

[0009] The diameter of the support is marked next to the adjustment groove 4.

[0010] The dimensions of the adjustment groove 4 are specified as φ60mm~φ120mm.

[0011] When N=4, the included angle between the lines containing the adjacent regulating grooves 4 is 60° or 120°.

[0012] The limiting nut 3 is a butterfly-shaped limiting nut, and the tray 1 is a square tray.

[0013] The height of the adjustable support base 2 is 60-100mm.

[0014] The top of the adjustable support 2 has a stepped structure.

[0015] The side surface between the top of the adjustable support 2 and the step surface is arc-shaped.

[0016] Compared with the prior art, this utility model has at least the following beneficial effects:

[0017] (1) The adjustable circular printed circuit board support fixture of this utility model can support the printed circuit board and avoid damage to the printed circuit board and components. When applied to the printed circuit board inspection process, the support fixture conforms to the ergonomic design, avoids long-term bending over work, and can improve the comfort of use.

[0018] (2) By setting an adjustable support base and an adjustment groove, this utility model realizes the adjustable circular printed circuit board support tool size adjustment function, which can match circular printed circuit boards of different diameters and has strong versatility.

[0019] (3) The adjustable circular printed circuit board support fixture of this utility model can be adapted to the outer dimensions of the printed circuit board by manually adjusting the limit nut, which is convenient and quick to operate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the adjustable circular printed circuit board support fixture structure of Embodiment 1 of this utility model. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0022] Example 1

[0023] The following description uses N=4 as an example to further illustrate the utility model. Figure 1 As shown, the adjustable circular printed circuit board support fixture of this utility model includes a square tray 1, adjustable support seats 2, wing-shaped limiting nuts 3, and adjustment grooves 4. With the center of the square tray 1 as the origin, the four adjustable support seats 2 are symmetrically arranged. Adjustment grooves 4 are respectively provided at the contact points between the square tray 1 and the adjustable support seats 2. The adjustable support seats 2 can slide along the adjustment grooves 4 to adjust the support diameter to adapt to the corresponding circular printed circuit board size. The wing-shaped limiting nuts 3 are used to tighten and limit the adjustable support seats 2.

[0024] The square tray 1 provides support, keeping the entire supporting fixture stable. To ensure stable contact between the supporting fixture and the tabletop, the square tray 1 is flattened. Based on the anti-static requirements of the printed circuit board (PCB), the square tray 1 is made of anti-static material. After adjusting the size of the adjustable support base 2, it is secured by tightening the wing-shaped limit nut 3 to prevent loosening and product drop. The diameter of the adjustable support base 2 is set according to the PCB's process edge, achieving secure mounting of circular PCBs without damaging components. The wing-shaped limit nut 3 is adjusted in the adjustment groove 4 to secure PCBs of different sizes.

[0025] When using it, first measure the diameter of the circular printed circuit board. Adjust the track distance of the adjustable support 2 according to the diameter of the circular printed circuit board. First fix the butterfly limit nut 3 of one side of the adjustable support 2, then gently rotate the printed circuit board, and then tighten the butterfly limit nut 3 of the other side of the adjustable support 2. In this way, the printed circuit board support fixture is adjusted. After the current printed circuit board is operated, the replacement of the printed circuit board can be completed simply by picking it up and placing it.

[0026] Currently, most circular printed circuit boards (PCBs) are small in size, ranging from φ70mm to φ100mm. Considering the ease of use and versatility of the adjustable support 2, its adjustable size is designed to be between φ60mm and φ120mm. This means the circular PCB support fixture can support PCBs with diameters between φ60mm and φ120mm. The square tray 1 is marked with the PCB diameter graduations, making the adjustment of the adjustable support 2 more convenient and precise. Each adjustable support 2 is locked by a wing-shaped limit nut 3. By adjusting the position of the wing-shaped limit nut 3, the fixture's support size matches the corresponding PCB size, making it suitable for supporting PCBs of various diameters. Therefore, the adjustable circular PCB support fixture has a certain degree of versatility.

[0027] Currently, mass-produced circular printed circuit boards have two electrical connectors with cables. If the straight line containing the adjacent support base's moving track is designed at 90°, the support part of the adjustable support base 2 will block the soldering position of the cable on the printed circuit board. To avoid the soldering position of the electrical connector, the included angle of the straight line containing the adjacent adjustment slot 4 is designed to be 60° / 120°.

[0028] Based on a survey of the heights of the anti-static workbenches and chairs used on-site, and considering the comfort of users, the height of the adjustable support base 2 is designed to be 60mm-100mm. The adjustable support base 2 is L-shaped, consisting of a base plate and a vertical plate. The base plate and the vertical plate are perpendicular to each other, and the wing-shaped limit nut 3 is installed on the base plate.

[0029] The top of the adjustable support base 2 is stepped, which not only stably supports the printed circuit board but also effectively prevents it from slipping. To better fit the vertical part of the stepped top of the adjustable support base 2 against the edge of the printed circuit board, the side between the top of the adjustable support base 2 and the stepped surface is designed to be arc-shaped.

[0030] The above description is only the best specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

[0031] The contents not described in detail in this utility model specification are common knowledge to those skilled in the art.

Claims

1. An adjustable circular printed circuit board support fixture, characterized in that: The system includes a tray (1), N adjustable support seats (2), a limiting nut (3), and an adjustment groove (4). The N adjustable support seats (2) are symmetrical about the center of the tray (1). An adjustment groove (4) is provided at the contact point between the tray (1) and the adjustable support seats (2). The adjustable support seats (2) can slide along the adjustment groove (4) to adjust the support diameter. The adjustable support seats (2) are installed on the tray (1) by the limiting nut (3), where N is a positive integer.

2. The adjustable circular printed circuit board support fixture according to claim 1, characterized in that: The adjustable support base (2) is L-shaped and includes a base plate and a vertical plate. The base plate and the vertical plate are perpendicular to each other, and the limiting nut (3) is installed on the base plate.

3. The adjustable circular printed circuit board support fixture according to claim 1, characterized in that: N takes values ​​from 4 to 8.

4. The adjustable circular printed circuit board support fixture according to claim 1, characterized in that: The adjustment groove (4) is marked with a support diameter dimension.

5. The adjustable circular printed circuit board support fixture according to claim 4, characterized in that: The dimensions of the adjustment groove (4) are specified as φ60mm~φ120mm.

6. The adjustable circular printed circuit board support fixture according to claim 3, characterized in that: When N=4, the included angle between the lines containing the adjacent regulating grooves (4) is 60° or 120°.

7. The adjustable circular printed circuit board support fixture according to claim 1, characterized in that: The limiting nut (3) is a butterfly limiting nut, and the tray (1) is a square tray.

8. The adjustable circular printed circuit board support fixture according to claim 1, characterized in that: The height of the adjustable support base (2) is 60-100mm.

9. The adjustable circular printed circuit board support fixture according to claim 1, characterized in that: The top of the adjustable support (2) has a stepped structure.

10. An adjustable circular printed circuit board support fixture according to claim 9, characterized in that: The side surface between the top of the adjustable support (2) and the step surface is arc-shaped.

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