Wave soldering jig

Abstract

The embodiment of the utility model belongs to the technical field of wave soldering. The utility model further relates to a wave soldering jig which comprises a jig body, a plurality of soldering windows are arranged at the top of the jig body, a plurality of sinking protection grooves are arranged at the bottoms of inner cavities of the soldering windows, the bottoms of the inner cavities of the soldering windows are arranged in an inclined mode, and tinplate tin dragging pieces are installed at the bottoms of the inner cavities of the soldering windows. According to the welding device, the welding device is adopted as an accessory, efficient and stable welding can be achieved in a narrow space, the complexity and low efficiency of manual welding are reduced, the bottom of the inner cavity is chamfered by more than 30 degrees, and the welding device is designed as a tin dragging piece, so that tin can be effectively guided to flow, the phenomenon of tin connection is reduced, and the welding quality is improved. And the welding reliability and stability are improved.

Description

Technical Field

[0001] This utility model relates to the field of wave soldering technology, and more specifically, to a wave soldering fixture. Background Technology

[0002] Wave soldering is a widely used soldering technology in the manufacturing process of electronic products, especially suitable for through-hole soldering of large-scale integrated circuit boards. However, in actual operation, soldering challenges are often encountered in confined spaces, particularly when PCB design space is small and connectors are designed close to surface-mount components (e.g., 1mm or more). Through-hole wave soldering becomes particularly difficult in these situations. Furthermore, when the pin spacing of connectors is dense, such as reaching 0.5mm, solder bridging is highly likely to occur during wave soldering. This not only affects soldering quality but may also lead to short circuits on the circuit board, reducing product reliability and stability. Therefore, we have proposed an improvement to address this issue by developing a wave soldering fixture. Utility Model Content

[0003] The technical problem to be solved by this utility model embodiment is that when the PCB design space is small and the connector is designed close to the surface mount components, wave soldering of the connector is particularly difficult and the problem of solder bridging is easy to occur.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A wave soldering fixture includes: a fixture body, the top of the fixture body having a plurality of soldering windows, the bottom of the inner cavity of the soldering windows having a plurality of recessed protective grooves, the bottom of the inner cavity of the soldering windows being inclined, and a tinplate solder drag sheet being installed at the bottom of the inner cavity of the soldering windows.

[0006] As an improvement of this utility model, the tilt angle of the bottom of the inner cavity of the welding window is greater than 30 degrees.

[0007] As an improvement of this utility model, a cross-shaped limiting block is provided at the center of the top of the fixture body, and the cross-shaped limiting block is located between several welding windows.

[0008] As an improvement of this utility model, a plurality of L-shaped limiting strips are provided on the side of the top of the fixture body, and the L-shaped limiting strips are located at the corners of the welding window.

[0009] As an improvement of this utility model, a T-shaped limiting block is also provided on the side of the top of the fixture body, and the T-shaped limiting block is located at the corner of the welding window.

[0010] As an improvement of this utility model, a pick-and-place slot is provided on the side wall of the welding window, and the pick-and-place slot is used for picking up and placing circuit boards.

[0011] As an improved mode of the utility model, the top of the jig body is provided with a plurality of second limiters, and the second limiters are located at the side of the welding window.

[0012] As an improved mode of the utility model, the second limiter comprises a second connecting shaft installed on the top of the jig body, and a second limiting sheet is rotationally connected to the outer surface of the second connecting shaft, and one end of the second limiting sheet extends into the welding window.

[0013] As an improved mode of the utility model, the top of the jig body is provided with a plurality of first limiters, and the first limiters are located between the adjacent two welding windows.

[0014] The first limiter comprises a first connecting shaft installed on the top of the jig body, and a first limiting sheet is rotationally connected to the outer surface of the first connecting shaft, and both ends of the first limiting sheet extend into the adjacent two welding windows.

[0015] As an improved mode of the utility model, an L-shaped blocking strip is further installed on the outer periphery of the jig body, and the L-shaped blocking strip is used for limiting the jig body.

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

[0017] In order to solve the problem that the PCB design space is small, the connector is designed close to the patch component, the wave soldering of the connector is particularly difficult, and the problem of tin connection is prone to occur, the utility model discloses a wave soldering jig which comprises a jig body, a plurality of welding windows are arranged on the top of the jig body, and a plurality of soldering tin dragging pieces are arranged in the inner cavity of the jig body. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The wave soldering jig provided by the utility model is shown in the structure schematic view.

[0019] Figure 2 The wave soldering jig provided by the utility model is shown in the structure schematic view.

[0020] Figure 3 The structure schematic view of the tin dragging piece of the wave soldering jig provided by the utility model is shown.

[0021] Figure 4 The structure schematic view of the L-shaped limiting strip of the wave soldering jig provided by the utility model is shown.

[0022] Figure 5A structure diagram of a T-shaped limiting block of a wave soldering jig provided in the present application is shown in the figure.

[0023] Figure 6 A structure diagram of a cross-shaped limiting block of a wave soldering jig provided in the present application is shown in the figure.

[0024] Indicated in the figure are:

[0025] 1, jig main body; 2, soldering window; 3, sunken protection groove; 4, tin-dragging sheet of tinplate; 5, first connecting shaft; 6, first limiting piece; 7, second connecting shaft; 8, second limiting piece; 9, taking and placing groove; 10, T-shaped limiting block; 11, cross-shaped limiting block; 12, L-shaped limiting strip; 13, L-shaped blocking strip. DETAILED DESCRIPTION

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Any reference in the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. The appearances of the phrase "in one embodiment" or "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all directed to the same embodiment, or to one or more other embodiments. It is expressly understood that the embodiments described herein are merely examples from a great array of possible embodiments and are not intended to limit the application in any way.

[0027] As described in the background, in the manufacturing process of electronic products, wave soldering is a widely used soldering technology, which is particularly suitable for plug-in soldering of large-scale integrated circuit boards. However, in actual operation, the soldering problem in a narrow space is often encountered, especially when the PCB design space is small and the plug-in design is close to the surface mount device (such as 1mm or more), the plug-in wave soldering becomes particularly difficult. In addition, when the pin pitch of the plug-in is dense, such as reaching 0.5mm, tin connection phenomenon is prone to occur during wave soldering, which not only affects the soldering quality, but also may cause short circuit of the circuit board, reducing the reliability and stability of the product.

[0028] To solve this technical problem, the present application provides a wave soldering jig.

[0029] Specifically, please refer to Figures 1-3 The wave soldering jig specifically comprises:

[0030] The jig main body 1 is provided with a plurality of soldering windows 2 at the top thereof, a plurality of sunken protection grooves 3 are formed at the bottom of the inner cavity of the soldering window 2, the bottom of the inner cavity of the soldering window 2 is inclined, and a tin-dragging sheet of tinplate 4 is installed at the bottom of the inner cavity of the soldering window 2.

[0031] The wave-soldering jig provided by the utility model, by adopting the jig main body 1 as a component, and designing the soldering window 2 and the sunken protection groove 3 on the jig main body 1, efficient and stable soldering can be realized in a narrow space, the tediousness and inefficiency of manual soldering are reduced, the bottom of the soldering window 2 inner cavity is chamfered by more than thirty degrees, and the tin-dragging sheet 4 made of tinplate is used as a tin-dragging sheet, so that the tin flow can be effectively guided, the occurrence of tin connection is reduced, and the reliability and stability of soldering are improved.

[0032] In order for those skilled in the art to better understand the utility model scheme, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings.

[0033] It should be noted that, in the case of no conflict, the embodiments in the utility model and the features and technical solutions in the embodiments can be combined with each other.

[0034] It should be noted that: similar labels and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0035] Embodiment one of the wave-soldering jig of the utility model

[0036] Please refer to Figures 1-3 The wave-soldering jig of the utility model comprises a jig main body 1, a plurality of soldering windows 2 are formed in the top of the jig main body 1, a plurality of sunken protection grooves 3 are formed in the bottom of the soldering window 2 inner cavity, the bottom of the soldering window 2 inner cavity is inclined, and a tin-dragging sheet 4 made of tinplate is installed on the bottom of the soldering window 2 inner cavity; by adopting the jig main body 1 as a component, and designing the soldering window 2 and the sunken protection groove 3 on the jig main body 1, efficient and stable soldering can be realized in a narrow space, the tediousness and inefficiency of manual soldering are reduced, in a narrow space, it is difficult to accurately operate by traditional manual soldering, problems such as inaccurate soldering position and long soldering time are prone to occur, and the soldering window 2 and the sunken protection groove 3 specially designed provide accurate positioning for the soldering position, an operator can more conveniently perform soldering operation, the soldering efficiency is greatly improved, meanwhile, the stability of soldering is enhanced, and the rate of poor soldering caused by operation errors is reduced.

[0037] The bottom of the inner cavity of the soldering window 2 is chamfered by more than thirty degrees, and the tin dragging sheet 4 made of tinplate is used as the tin dragging sheet, which can effectively guide the flow of tin, reduce the occurrence of tin connection, and improve the reliability and stability of soldering.

[0038] The back surface of the jig body 1 is provided with a washing groove, and the position of the washing groove is staggered with the position of the sunken protection groove 3, so that the thickness of the jig body 1 is reduced to improve the flow performance of tin and prevent the occurrence of tin connection, thereby reducing the poor flow or accumulation of tin caused by the excessive thickness of the jig body 1, thereby improving the flow performance of tin.

[0039] Further, the inclination angle of the inner cavity bottom of the soldering window 2 is greater than thirty degrees, so that the tin is better guided and flows, and the greater inclination angle can significantly increase the controllability of the flow rate and flow direction of the tin liquid.

[0040] Embodiment two of the wave soldering jig

[0041] Further, the wave soldering jig of the present application comprises Figure 1 、 Figure 2 and Figure 6As shown, the center of the top of the jig body 1 is provided with a cross-shaped limiting block 11, which is located between the plurality of welding windows 2. The cross-shaped design of the cross-shaped limiting block 11 can be applied between the four welding windows 2, for positioning the circuit board in the four welding windows 2 at the same time. In the wave soldering process, the circuit board needs to maintain a stable position, otherwise problems such as solder point deviation and virtual welding are likely to occur. The cross-shaped limiting block 11 fixes the circuit board from the center position, limiting the movement and rotation of the circuit board in the horizontal direction, ensuring that each solder point can accurately contact the tin liquid, improving the precision and consistency of welding. At the same time, multiple circuit boards are positioned at one time, greatly improving the production efficiency.

[0042] Further, as shown in Figure 1 and Figure 4 , the side of the top of the jig body 1 is provided with a plurality of L-shaped limiting strips 12, which are located at the corners of the welding windows 2. The L-shaped limiting strips 12 are used for positioning the circuit board. The L-shaped limiting strips 12 use their special shape to effectively position the circuit board from the corners. In the welding process, the corner part of the circuit board is the most likely to displace. The L-shaped limiting strips 12 can tightly hold the corners of the circuit board to prevent it from rotating or shifting during welding. This precise corner positioning method ensures the accuracy of the welding position, allowing the solder points to be evenly distributed on the circuit board, avoiding problems such as uneven solder points and short circuits caused by circuit board displacement, improving welding quality, ensuring product electrical performance and stability, and also improving product appearance quality, reducing the scrap rate caused by poor welding.

[0043] Further, as shown in Figure 1 and Figure 5 , the side of the top of the jig body 1 is also provided with a T-shaped limiting block 10, which is located at the corner of the welding window 2. The T-shaped limiting block 10 is located between the two adjacent welding windows 2 on the side of the jig body 1, for positioning the circuit board in the two welding windows 2 at the same time. The T-shaped limiting block 10 is ingeniously designed between the two adjacent welding windows 2, which can accurately position the circuit boards of the two welding windows 2 at the same time, ensuring that the circuit board remains flat and stable during welding. This design not only ensures the stability of the circuit board, but also improves the positioning efficiency.

[0044] Further, as shown in Figure 1As shown, the side wall of the welding window 2 is provided with a taking and placing groove 9 for taking and placing the circuit board, which provides operation space for the fingers to take and place the circuit board.

[0045] Embodiment three of the wave soldering jig

[0046] Further, as shown in the Figure 1 The top of the jig body 1 is provided with a plurality of second limiting pieces, which are located at the side of the welding window 2, and the second limiting pieces are used for limiting the circuit board in the welding window 2.

[0047] Further, as shown in the Figure 1 The second limiting piece includes a second connecting shaft 7 installed on the top of the jig body 1, and the outer surface of the second connecting shaft 7 is rotationally connected with a second limiting piece 8, one end of the second limiting piece 8 extends into the welding window 2, and the second limiting piece 8 can limit the circuit board in the welding window 2, and rotating the second limiting piece 8 can separate the second limiting piece 8 from the circuit board to release the limiting.

[0048] Further, as shown in the Figure 1 The top of the jig body 1 is provided with a plurality of first limiting pieces, which are located between the adjacent two welding windows 2.

[0049] The first limiting piece includes a first connecting shaft 5 installed on the top of the jig body 1, and the outer surface of the first connecting shaft 5 is rotationally connected with a first limiting piece 6, both ends of the first limiting piece 6 extend into the adjacent two welding windows 2, and the first limiting piece 6 can limit the circuit boards in the two welding windows 2 at the same time, and rotating the first limiting piece 6 can separate the first limiting piece 6 from the circuit board to release the limiting.

[0050] Further, as shown in the Figure 1 Figure 1 The outer periphery of the jig body 1 is also provided with an L-shaped blocking strip 13, which is used for limiting the jig body 1.

[0051] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments, and the preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or equivalently replace some of the technical features. Any equivalent structure made by using the content of the present application specification and drawings, directly or indirectly used in other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A wave soldering fixture, characterized by, Include: The jig body (1), the top of the jig body (1) is provided with a plurality of welding windows (2), the bottom of the inner cavity of the welding window (2) is provided with a plurality of sunken protection grooves (3), the bottom of the inner cavity of the welding window (2) is inclined, the bottom of the inner cavity of the welding window (2) is provided with a tin plate (4).

2. The wave soldering fixture of claim 1, wherein, The inclination angle of the inner cavity bottom of the welding window (2) is greater than thirty degrees.

3. The wave soldering fixture of claim 1, wherein, The center of the top of the jig body (1) is provided with a cross-shaped limiting block (11), and the cross-shaped limiting block (11) is located between a plurality of welding windows (2).

4. The wave soldering fixture of claim 1, wherein, The side of the top of the jig body (1) is provided with a plurality of L-shaped limiting strips (12), and the L-shaped limiting strips (12) are located at the corners of the welding windows (2).

5. The wave soldering fixture of claim 1, wherein, The side of the top of the jig body (1) is also provided with a T-shaped limiting block (10), and the T-shaped limiting block (10) is located at the corner of the welding window (2).

6. The wave soldering fixture of claim 1, wherein, The side wall of the welding window (2) is provided with a taking and placing groove (9), and the taking and placing groove (9) is used for taking and placing the circuit board.

7. The wave soldering fixture of claim 1, wherein, The top of the jig body (1) is provided with a plurality of second limiting members, and the second limiting members are located at the side of the welding window (2).

8. The wave soldering fixture of claim 7, wherein, The second limiting member includes a second connecting shaft (7) installed on the top of the jig body (1), the outer surface of the second connecting shaft (7) is rotatably connected with a second limiting piece (8), and one end of the second limiting piece (8) extends into the welding window (2).

9. The wave soldering fixture of claim 1, wherein, The top of the jig body (1) is provided with a plurality of first limiting members, and the first limiting members are located between two adjacent welding windows (2). The first limiting member, the first limiting member includes a first connecting shaft (5) installed on the top of the jig body (1), the outer surface of the first connecting shaft (5) is rotatably connected with a first limiting piece (6), and both ends of the first limiting piece (6) extend into two adjacent welding windows (2).

10. The wave soldering fixture of claim 1, wherein, The outer circumferential side of the jig body (1) is also provided with an L-shaped blocking strip (13), and the L-shaped blocking strip (13) is used for limiting the jig body (1).

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