A through-hole connector soldering device

Abstract

The utility model discloses a through -hole connector's tin lining device. Including first limiting device, second limiting device, adjusting device and fixing device, adjusting device, first limiting device, second limiting device respectively are equipped with multiple limiting grooves in array distribution, adjusting device is equipped with multiple limiting grooves of rows, the limiting groove of first limiting device and the first row limiting groove of adjusting device symmetrical arrangement, form first row limiting hole, the limiting groove of second limiting device and the second row limiting groove of adjusting device symmetrical arrangement, form second row limiting hole, one diagonal in limiting hole is equipped with a pair of L shaped support platform, L shaped support platform is used for supporting through -hole connector, through the up and down left and right movement of adjusting device, form the size adjustable of limiting hole size, adapt to different model's connector.

Description

Technical Field

[0001] This utility model relates to the field of electronic component tinning technology, and in particular to a tinning device for through-hole connectors. Background Technology

[0002] To adapt to the increasing density, speed, and integration of products, connectors are increasingly adopting multi-row, fine-pitch connectors to achieve electrical connections between boards. To improve the connector's corrosion resistance, most connector pins are gold-plated for protection. However, after soldering, gold-plated pins form brittle gold-tin compounds. When the gold content in the compound reaches 3%, the solder joint will experience "gold embrittlement," affecting solder joint quality. For electronic products in aerospace and other military fields, to avoid "gold embrittlement" and subsequent solder joint quality degradation, it is stipulated that gold-plated components must undergo a de-goldening and tinning process before soldering.

[0003] The process of manually de-goldening and tinning multi-pin fine-pitch connectors with an electric soldering iron is difficult, inefficient, and makes it hard to ensure the consistency of pin tinning. Specialized equipment in the industry is expensive and takes up a lot of space, making it unsuitable for military enterprises with a wide variety of products and small batches. The most common method is to manually use tweezers, clips, and other tools to hold the connectors in a temperature-controlled solder pot for de-goldening and tinning. This method is inefficient, there is a risk that the connectors will fall into the solder pot, the tinning consistency is poor, the tinning height cannot be controlled, and it is difficult to ensure that the solder joints are completely de-goldened and tinned. Summary of the Invention

[0004] Therefore, the purpose of this utility model is to provide a tinning device for through-hole connectors, which forms an adjustable limiting hole by adjusting the up, down, left and right movement of the device to adapt to different models of connectors.

[0005] To achieve the above objectives, this utility model proposes a tinning device for a through-hole connector, comprising a first limiting device, a second limiting device, an adjusting device, and a fixing device; the adjusting device, the first limiting device, and the second limiting device are each provided with a plurality of limiting grooves arranged in an array; the adjusting device, the first limiting device, and the second limiting device are embedded inside the fixing device, and the adjusting device is movable relative to the fixing device.

[0006] The adjusting device is provided with two rows of limiting grooves at the front and rear. The limiting groove of the first limiting device is arranged opposite to the first row of limiting grooves of the adjusting device to form the first row of limiting holes. The limiting groove of the second limiting device is arranged opposite to the second row of limiting grooves of the adjusting device to form the second row of limiting holes.

[0007] A pair of L-shaped support platforms are provided diagonally in the limiting hole; the L-shaped support platforms are used to support the through-hole connector.

[0008] More preferably, the fixing device includes a bracket and a support plate installed sequentially from top to bottom; the bracket and the support plate have an open window in the middle.

[0009] More preferably, the bracket of the fixing device is provided with a handle.

[0010] More preferably, the adjusting device and the first limiting device are embedded inside the window; the adjusting device is movable within the window.

[0011] More preferably, the fixing device further includes a pad, the thickness of which is consistent with the thickness of the first limiting device and the adjusting device embedded in the window.

[0012] More preferably, the fixing device is further provided with a locking screw, which is used to fix the adjusting device.

[0013] More preferably, the first limiting device includes a first limiting plate and a first supporting plate; the lower part of the first limiting plate is a flat plate, and the middle part is provided with a first protrusion, and a plurality of limiting grooves are opened on the first protrusion, each limiting groove being U-shaped.

[0014] More preferably, the second limiting device includes a second limiting plate and a second support plate; the upper two wings of the second support plate are flat plates, and a downward-facing second protrusion is provided in the middle. Multiple limiting grooves are opened on the second protrusion, and each limiting groove is U-shaped.

[0015] More preferably, the adjusting device includes a third support plate and a third limiting plate. The third support plate has a second window in the middle and anti-slip holes on both sides. The lower part of the third limiting plate is a flat plate and the middle part is a third protrusion. The middle part of the third protrusion has a third window corresponding to the second window. Multiple rows of limiting grooves are opened on the same side of the third protrusion, and each limiting groove is U-shaped.

[0016] The present application discloses a soldering device for through-hole connectors, which is provided with multiple sets of limiting holes, which can meet the soldering requirements of batch through-hole connectors and improve soldering efficiency.

[0017] The tinning device for a through-hole connector disclosed in this application can control the size of multiple sets of limiting holes by adjusting the position of the adjusting device and operating synchronously, so as to meet the needs of connectors with various sizes and packages, and has high versatility.

[0018] The connector limiting hole designed in this application features a pair of L-shaped support platforms at the corners. The movement of the adjustment device ensures that the pair of L-shaped support platforms are always on the same plane, thus ensuring the consistency of the soldering height of the connector pins.

[0019] This utility model has a simple structure, low manufacturing cost, flexible and convenient operation, can control the soldering height of connector leads, and has high soldering consistency. It solves the problem of batch soldering of through-hole connectors with different package sizes, has high versatility, and has a wide range of application prospects. It is suitable for small-batch, multi-variety production in the military industry. Attached Figure Description

[0020] Figure 1 A schematic diagram of the tinning device for the through-hole connector provided by this utility model.

[0021] Figure 2 This is a schematic diagram of the adjustment fixture for the tinning device of the through-hole connector provided by this utility model;

[0022] Figure 3 This is a schematic diagram of the tooling after the connector is installed;

[0023] Figure 4 This is a diagram of the fixture assembly;

[0024] Figure 5 This is a top view of the first limiting device;

[0025] Figure 6 This is a diagram of the first limiting device;

[0026] Figure 7 This is a top view of the second limiting device;

[0027] Figure 8 This is a diagram showing the components of the second limiting device;

[0028] Figure 9 This is a top view of the adjustment device;

[0029] Figure 10 This is a diagram of the regulating device.

[0030] In the diagram: 1. First limiting device; 2. Second limiting device; 3. Adjusting device; 4. Fixing device; 5. Connector; 101. First limiting plate; 102. First support plate; 103. First boss; 104. Limiting groove; 105. L-shaped support platform; 201. Second limiting plate; 202. Second support plate; 203. Second boss; 301. Third limiting plate; 302. Third support plate; 303. Third boss; 401. Handle; 402. Bracket; 403. Pad; 404. Support plate; 405. Locking screw; 406. Hexagonal nut. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1-3As shown, one embodiment of the present invention provides a tinning device for a through-hole connector, including a first limiting device 1, a second limiting device 2, an adjusting device 3, and a fixing device 4; the adjusting device 3, the first limiting device 1, and the second limiting device 2 are respectively provided with a plurality of limiting grooves 104 arranged in an array; the adjusting device 3 and the first limiting device 4 are embedded in the fixing device 4 and are movable relative to the fixing device 4;

[0033] like Figure 2 and Figure 5 As shown, the adjusting device 3 is provided with two rows of limiting grooves 104; the limiting groove of the first limiting device 1 is arranged opposite to the first row of limiting grooves of the adjusting device 3 to form a first row of limiting holes, and the limiting groove of the second limiting device 2 is arranged opposite to the second row of limiting grooves of the adjusting device 3 to form a second row of limiting holes; an L-shaped support platform 105 is provided at one corner of each limiting groove; the L-shaped support platform 105 is used to support the through-hole connector.

[0034] like Figure 2 As shown, the through-hole connector is inserted into the diagonal limiting hole composed of the adjustment device and the limiting device; the connector pins pass through the limiting hole, and the connector package is limited on the diagonal L-shaped support platform; the adjustment device is adjusted so that the size of the limiting hole matches the connector package, so that the connector does not fall off and can be freely picked up and put on; the locking screw is tightened to fix the adjustment device; during soldering, the connector pins are vertically immersed in the solder liquid, and the soldering is completed in 2-3 seconds and the pins are vertically removed from the solder surface.

[0035] like Figure 4 As shown, the fixing device 4 includes a bracket 402 and a support plate 404 installed sequentially from top to bottom; the bracket 402 and the support plate 404 have a window in the middle. The adjusting device 3 and the first limiting device 1 are embedded inside the window; the adjusting device 3 is movable in the window; the bracket 402 of the fixing device 4 is provided with a handle 401. During soldering, the handle is removed, and the connector pins are vertically immersed in the molten solder. The immersion depth is such that the bottom support plate 404 of the fixing device 4 contacts the surface of the molten solder. Soldering is completed in 2-3 seconds, and the pins are vertically removed from the solder surface.

[0036] The fixing device 4 is also provided with a locking screw 405, which is used to fix the adjusting device 3. The fixing device 4 also includes a pad 403, the thickness of which is the same as the thickness of the first limiting device 1 and the adjusting device 3 embedded in the window.

[0037] like Figure 5-6As shown, the first limiting device 1 includes a first limiting plate 101 and a first support plate 102; the lower part of the first limiting plate 101 is a flat plate, and the middle part is provided with a first boss 103. Multiple limiting grooves 104 are formed on the first boss 103, and each limiting groove 104 is U-shaped. The upper left corner of the limiting groove after the first limiting plate 101 and the first support plate 102 are assembled forms an L-shaped support platform.

[0038] like Figure 7-8 As shown, the second limiting device 2 includes a second limiting plate 201 and a second support plate 202; the upper two wings of the second support plate 202 are flat plates, and a downward-facing second protrusion 203 is provided in the middle. Multiple limiting grooves 104 are formed on the second protrusion 203, each limiting groove 104 being U-shaped. The upper left corner of the limiting groove after the second limiting plate 201 and the second support plate 202 are assembled forms an L-shaped support platform.

[0039] like Figure 9-10 As shown, the adjusting device 3 includes a third support plate 302 and a third limiting plate 301. The third support plate 302 has a second window in the middle and heat dissipation holes on both sides, which can facilitate the adjustment of the device left and right or front and back. The lower part of the third limiting plate 301 is a flat plate, and the middle part is a third protrusion 303. The third protrusion 303 has a third window in the middle corresponding to the second window. The third protrusion 303 and the limiting device are symmetrically arranged with multiple rows of limiting grooves 104, each limiting groove 104 being U-shaped. The lower right corner of the limiting groove after the third support plate 302 and the third limiting plate 301 are assembled forms an L-shaped support platform.

[0040] This utility model also provides a method for applying a soldering device to a through-hole connector. The soldering process using the aforementioned soldering device for through-hole connectors includes the following steps:

[0041] Loosen the locking screw 405, adjust the position of the adjusting device 3, and place the through-hole connector in the diagonal limiting hole of the adjusting device 3; so that the connector pins pass through the limiting hole, and the connector package is limited on the L-shaped support 105.

[0042] The up, down, left, and right adjustment device 3 makes the size of the limiting hole match the connector package, so that the connector will not fall off and can be freely picked up and put down;

[0043] Tighten the locking screw 405 to fix the position of the adjusting device 3; fill the other limiting holes with the connector to be soldered;

[0044] Remove handle 401, vertically immerse connector pins into molten solder, immersion depth is such that the bottom support plate 404 of fixing device 4 contacts the surface of molten solder, complete soldering in 2-3 seconds and vertically leave the solder surface;

[0045] When connectors need to be de-goldened and tinned, they are first tinned in a special de-goldening tin pot, and after the leads have cooled naturally, they are immersed in a regular tin pot to complete the second tinning.

[0046] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A soldering device for a through-hole connector, characterized in that, It includes a first limiting device, a second limiting device, an adjusting device, and a fixing device; the adjusting device, the first limiting device, and the second limiting device are each provided with multiple limiting slots arranged in an array; the adjusting device, the first limiting device, and the second limiting device are embedded inside the fixing device, and the adjusting device is movable relative to the fixing device; The adjusting device is provided with multiple rows of limiting grooves; the limiting grooves of the first limiting device are symmetrically arranged with the first row of limiting grooves of the adjusting device to form the first row of limiting holes; the limiting grooves of the second limiting device are symmetrically arranged with the second row of limiting grooves of the adjusting device to form the second row of limiting holes. A pair of L-shaped support platforms are provided diagonally in the limiting hole; the L-shaped support platforms are used to support the through-hole connector.

2. The tinning device for a through-hole connector according to claim 1, characterized in that, The fixing device includes a bracket and a support plate installed sequentially from top to bottom; the bracket and support plate have an open window in the middle.

3. The tinning device for a through-hole connector according to claim 2, characterized in that, The bracket of the fixing device is equipped with a handle.

4. The tinning device for a through-hole connector according to claim 2, characterized in that, The adjusting device and the first limiting device are embedded inside the window; the adjusting device is movable within the window.

5. The tinning device for a through-hole connector according to claim 2, characterized in that, The fixing device also includes a pad, the thickness of which is consistent with the thickness of the first limiting device and the adjusting device embedded in the window.

6. The tinning device for a through-hole connector according to claim 3, characterized in that, The fixing device is also provided with a locking screw, which is used to fix the adjusting device.

7. The tinning device for a through-hole connector according to claim 1, characterized in that, The first limiting device includes a first limiting plate and a first supporting plate; the lower part of the first limiting plate is a flat plate, and the middle part is provided with a first boss, and multiple limiting grooves are opened on the first boss.

8. The tinning device for a through-hole connector according to claim 1, characterized in that, The second limiting device includes a second limiting plate and a second support plate; the upper two wings of the second support plate are flat plates, and a downward-facing second protrusion is provided in the middle, with multiple limiting grooves opened on the second protrusion.

9. The tinning device for a through-hole connector according to claim 1, characterized in that, The adjustment device includes a third support plate and a third limiting plate. The third support plate has a second window in the middle and anti-slip holes on both sides. The lower part of the third limiting plate is a flat plate and the middle part is a third protrusion. The middle part of the third protrusion has a third window corresponding to the second window. Multiple rows of limiting grooves are opened on the same side of the third protrusion.

10. The tinning device for a through-hole connector according to any one of claims 1-9, characterized in that, Each limiting groove is U-shaped, and one corner of the limiting groove forms an L-shaped support platform.

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