Tin blocking tool

Abstract

The utility model discloses a tin blocking tool which comprises a check block and a supporting piece, the check block is provided with a tin blocking part and a fixing part, one side of the tin blocking part is connected to one side of the fixing part in an extending mode, the fixing part protrudes to form a positioning notch, the positioning notch is fixedly installed on the supporting piece, and the tin blocking part is connected with the supporting piece. And the tin blocking part is arranged above the dense pins. According to the utility model, the fixing part of the stop block is fixedly connected with the supporting piece, and the tin blocking part of the stop block is arranged above the dense pins of the element, so that when tin explosion occurs in manual tin soldering operation, fallen tin beads and tin slag are prevented from adhering to the dense pins, and the problem of short circuit between the pins caused by tin explosion is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of soldering devices, in particular to a tin blocking tooling. Background Art

[0002] Tin explosion, also known as tin blasting, refers to the phenomenon that when a high-temperature soldering iron tip touches the solder wire during the soldering operation, a cracking sound will be emitted and at the same time, some small solid metal tin beads with a bright color will pop out.

[0003] When tin explosion occurs during manual soldering of the main board, when tin beads and tin dross fall on the pins of the dense components on the main board, it is extremely easy to cause short circuits between the dense pins of the chip, affecting the soldering quality of the main board components and resulting in after-sales offline problems due to insufficient in-factory testing. Content of the Utility Model

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a tin blocking tooling to solve the problem of short circuits between the pins of dense-pin components caused by the falling of tin beads and tin dross during manual soldering.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a tin blocking tooling, including a blocking block and a support member. The blocking block is provided with a tin blocking portion and a fixing portion. One side of the tin blocking portion extends and is connected to one side of the fixing portion. The fixing portion protrudes to form a positioning notch, and the positioning notch is fixedly installed on the support member. The tin blocking portion is arranged above the dense pins.

[0006] As a further improvement of the utility model: the fixing portion is sequentially composed of a first limiting portion, a connecting portion, and a second limiting portion. The first limiting portion and the second limiting portion are arranged opposite to each other. The tin blocking portion is connected to the first limiting portion. The first limiting portion, the connecting portion, and the second limiting portion form the positioning notch.

[0007] As a further improvement of the utility model: the positioning notch is in a U-shaped shape, and the opening direction of the positioning notch faces or backs the dense pins.

[0008] As a further improvement of the utility model: the inner side or the outer side of the positioning notch abuts against the support member.

[0009] As a further improvement of the utility model: the positioning notch is provided with a fixing through hole, and the support member is provided with a plurality of positioning through holes. The fixing through hole and the positioning through hole are connected by a fixing member.

[0010] As a further improvement of the utility model: the positioning notch is provided with a fixing through hole, and the support member is provided with a first sliding groove. The fixing through hole and the first sliding groove are connected by a fixing member.

[0011] As a further improvement of the present utility model: a notch is provided on the outer periphery of the tin-blocking portion to form an avoidance portion.

[0012] As a further improvement of the present utility model: it further includes a positioning frame, the support member is fixedly assembled on the positioning frame, second chutes are respectively provided on both sides of the positioning frame, positioning members are respectively provided at both ends of the support member, and the positioning members move along the length direction of the second chutes.

[0013] As a further improvement of the present utility model: the length direction of the second chute is perpendicular to the length direction of the first chute.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The present utility model designs a stopper, the stopper has a tin-blocking portion and a fixing portion, and the stopper is fixedly assembled on the support member through the fixing portion, so that the tin-blocking portion is located above the densely arranged pins of the component. During the soldering operation of the operator, the stopper is used to block the solder balls and solder dross from falling on the densely arranged pins, solving the problem of pin short circuit caused by solder explosion, and ensuring the soldering qualification rate and reliability of the product. Description of the Drawings

[0016] Figure 1 It is a schematic structural view of the stopper in an embodiment of the present utility model.

[0017] Figure 2 It is a top view of the stopper in an embodiment of the present utility model.

[0018] Figure 3 It is a schematic structural view of the stopper assembled on the soldering tooling in an embodiment of the present utility model.

[0019] Figure 4 It is a schematic structural view of one embodiment of the support member in an embodiment of the present utility model.

[0020] Figure 5 It is a schematic structural view of another embodiment of the support member in an embodiment of the present utility model.

[0021] Reference Signs:

[0022] 1. Stopper, 2. Support member, 201. Positioning through hole, 202. First chute, 3. Tin-blocking portion, 4. Fixing portion, 41. First limiting portion, 42. Connecting portion, 43. Second limiting portion, 401. Positioning notch, 402. Fixing through hole, 5. Avoidance portion, 501. Arc-shaped notch. Detailed Embodiments

[0023] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with specific embodiments of the present utility model and the corresponding drawings. Obviously, the described embodiments are only a part rather than all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0024] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0025] In order to solve the technical problems in the prior art, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments:

[0026] As Figures 1 to 5 shown, an embodiment of the present utility model discloses a solder blocking tooling, including a blocking block 1 and a support member 2. The blocking block 1 is provided with a solder blocking portion 3 and a fixing portion 4. One side of the solder blocking portion 3 extends and is connected to one side of the fixing portion 4. The fixing portion 4 protrudes to form a positioning notch 401. The fixing portion 4 may protrude to form the positioning notch 401 towards the back side of the solder blocking portion 3, or the fixing portion 4 may protrude to form the positioning notch 401 away from the back side of the solder blocking portion 3. The positioning notch 401 is fixedly installed on the support member 2, and the solder blocking portion 3 is disposed above the dense pins.

[0027] During manual soldering operation, the PCB main board to be soldered is fixed by the soldering tooling to facilitate the operator to complete soldering. In this embodiment, a solder blocking tooling is added to the soldering tooling to solve the problem of solder explosion in current manual soldering and the problem of short circuit between pins caused by solder beads and solder dross falling on the dense pin components.

[0028] Specifically, the solder-blocking tooling is provided with a stop block 1 and a support member 2. The support member 2 is fixedly assembled on the soldering tooling. Of course, when some soldering toolings already have the support member 2, there is no need to additionally install the support member 2, without significantly modifying the structure of the original soldering tooling. The stop block 1 is fixedly assembled on the support member 2. The stop block 1 has a solder-blocking portion 3 and a fixing portion 4. One side of the solder-blocking portion 3 extends and is connected to one side of the fixing portion 4. Among them, the solder-blocking portion 3 is used to cover the dense pin area of the component, avoiding the problem of short circuit caused by solder balls and solder dross falling onto the dense pins during the motherboard soldering process. The shape, area, etc. of the solder-blocking portion 3 are specifically adjusted according to the dense pins of different components. A positioning notch 401 is provided on the fixing portion 4. The positioning notch 401 protrudes towards the back side of the solder-blocking portion 3 to form the positioning notch 401, and is positioned and connected to the support member 2 through the positioning notch 401.

[0029] In this embodiment, the solder-blocking portion 3 and the fixing portion 4 are integrally formed, and there is no need for additional assembly between the solder-blocking portion 3 and the fixing portion 4, saving installation time.

[0030] The solder-blocking portion 3 and the fixing portion 4 can be made of stainless steel, which has the characteristics of high temperature resistance and not easy to wear. During the soldering process, the stop block 1 is not easily deformed, and the stainless steel material is convenient for using equipment to clean the tooling. In addition, the solder-blocking portion 3 is located above the dense pins and does not interfere with the motherboard components during the soldering process. The appropriate stop block 1 is specifically designed according to the model of the motherboard and the soldering tooling, and the stop block 1 is fixedly assembled at the set position of the support member 2, so that the stop block 1 shields the dense pins, without the need for personnel to hold the stop block 1 for operation, ensuring the stability of the soldering operation.

[0031] In this embodiment, the stop block 1 can also be made of bakelite. However, there is a situation of high-temperature wear during the long-term welding use process, and its durability is lower than that of the stop block 1 made of stainless steel.

[0032] When the stop block 1 is assembled with the support member 2, the support member 2 is embedded in the positioning notch 401 of the fixing portion 4, and then the stop block 1 and the support member 2 are fixedly connected through a fixing member. Usually, holes are opened on the stop block 1, and corresponding holes are also opened on the support member 2. Fixing members such as screws, bolts, and fixing pins are used to fix the stop block 1 and the support member 2, ensuring that the stop block 1 will not become loose from the support member 2.

[0033] As Figure 1 shown, in some embodiments, the fixing portion 4 is composed of a first limiting portion 41, a connecting portion 42, and a second limiting portion 43. One side of the connecting portion 42 is fixedly connected to the first limiting portion 41, and the other side of the connecting portion 42 is fixedly connected to the second limiting portion 43. The first limiting portion 41 and the second limiting portion 43 are arranged oppositely.

[0034] In a specific example, the first limiting portion 41, the connecting portion 42, and the second limiting portion 43 are integrally formed. The first limiting portion 41, the connecting portion 42, and the second limiting portion 43 form a positioning notch. The connecting portion 42 is fixedly connected to the support member 2 through a fixing member. The connecting portion 42 is limited and fixed on the support member 2 by the first limiting portion 41 and the second limiting portion 43, which facilitates the rapid positioning of the stopper 1 and the support member 2 and improves the installation efficiency of the stopper 1 on the support member 2.

[0035] In some embodiments, the first limiting portion 41 and the second limiting portion 43 are vertical segments, the connecting portion 42 is a horizontal segment, and the positioning notch 401 formed by the first limiting portion 41, the connecting portion 42, and the second limiting portion 43 is U-shaped. The solder blocking portion 3 is connected to the first limiting portion 41. Further, one side of the solder blocking portion 3 extends and is connected to one side of the first limiting portion 41, and the other side of the first limiting portion 41 is connected to the connecting portion 42.

[0036] The opening of the U-shaped positioning notch 401 can face the direction of the densely-pinned components on the main board. When the inner side of the positioning notch 401 abuts against the upper end surface of the support member 2, that is, the stopper 1 is placed on the upper end of the support member 2, the solder blocking portion 3 is at the first height; when the outer side of the positioning notch abuts against the lower end surface of the support member 2, that is, the stopper 1 is placed on the lower end of the support member 2, the solder blocking portion 3 is at the second height, and the first height is greater than the second height.

[0037] The opening of the U-shaped positioning notch 401 can also face away from the direction of the densely-pinned components on the main board. When the inner side of the positioning notch 401 abuts against the lower end surface of the support member 2, that is, the stopper 1 is placed on the lower end of the support member 2, the solder blocking portion 3 is at the third height. When the outer side of the positioning notch abuts against the upper end surface of the support member 2, that is, the stopper 1 is placed on the upper end of the support member 2, the solder blocking portion 3 is at the fourth height, and the third height is less than the fourth height. Further, the fourth height > the third height > the first height > the second height.

[0038] For components with protrusions arranged around the densely-pinned components, such as resistor components, by different installation methods of the positioning notch 401 and the support member 2, the distance between the solder blocking portion 3 of the stopper 1 and the main board is appropriately adjusted, so that the solder blocking portion 3 of the stopper 1 maintains a proper distance from the densely-pinned components, shields the densely-pinned components, and avoids interference between the solder blocking portion 3 and the protruded components on the main board.

[0039] Such as Figure 1 and Figure 4 As shown in the figure, in some embodiments, the positioning notch is provided with a fixing through hole 402, and the support member 2 is provided with a plurality of positioning through holes 201. The fixing through hole 402 and the positioning through hole 201 are connected by a fixing member.

[0040] Further, the fixing through-hole 402 is provided on the connecting portion 42, and a plurality of positioning through-holes 201 are arranged along the length direction of the support member 2. The PCB main board is fixed on the soldering jig. According to the different positions of the densely-pinned components on the PCB main board, the stopper 1 is slid to a suitable position on the support member 2, and then the stopper 1 is fixed on the support member 2 through a fixing member.

[0041] As Figure 1 and Figure 5 shown, in some embodiments, the fixing through-hole 402 is provided on the positioning notch, and a first sliding groove 202 is provided on the support member 2. The fixing through-hole 402 and the first sliding groove 202 are connected through a fixing member.

[0042] The first sliding groove 202 is arranged along the length direction of the support member 2. The fixing position of the stopper 1 on the support member 2 is freely adjusted along the length direction of the first sliding groove 202. Then, the fixing member is passed through the first sliding groove 202 and the fixing through-hole 402 to fixedly install the stopper 1 and the support member 2, thereby improving the versatility of the solder-blocking jig as a whole, adapting to the densely-pinned components on different models of PCB main boards, shielding the densely-pinned components in different areas, and avoiding the short-circuit of components caused by the dropping of solder beads.

[0043] In some embodiments, an avoidance portion 5 is provided on the outer periphery of the solder-blocking portion 3. The avoidance portion 5 is usually formed by opening a notch on the outer periphery of the solder-blocking portion 3. The notch can be designed as an arc-shaped notch 501 or a square notch, and is specifically adjusted according to the shape of other components protruding around the densely-pinned components.

[0044] In a specific example, there are protruding components around the densely-pinned components on the PCB main board, such as resistor components. By designing the avoidance portion 5 on the outer periphery of the solder-blocking portion 3, when the solder-blocking portion 3 of the stopper 1 is placed above the densely-pinned pins, there is a gap between the avoidance portion 5 and the protruding components, and the solder-blocking portion 3 will not interfere with the protruding components around the densely-pinned components.

[0045] In some embodiments, a positioning frame is further included. The support member 2 is fixedly assembled on the positioning frame. Second sliding grooves are respectively provided on both sides of the positioning frame. Positioning members are respectively provided at both ends of the support member 2. The positioning members move along the length direction of the second sliding grooves. Screw rods, fixing pins, etc. can be used as the positioning members. When the support member 2 slides to a set position, the support member 2 and the positioning frame are fixed through the positioning members.

[0046] The soldering tooling is provided with a positioning frame, and the PCB main board to be soldered is limited on the positioning frame. It can be understood that the positioning frame constitutes a part of the tin-blocking tooling, and improvements are made without significantly changing the original structure of the soldering tooling. The support member 2 is fixed on the positioning frame, so that the support member 2 is spanned above the soldering surface of the PCB main board. Then, second chutes are respectively opened on both sides of the positioning frame. Correspondingly, positioning members are respectively designed at both ends of the support member 2, and the positioning members are inserted into the second chutes to realize the free movement of the positioning members in the second chutes, so as to adjust the position of the support member 2 above different soldering positions of the PCB main board, so that the block 1 fixedly assembled on the support member 2 is located above different soldering areas of the PCB main board. Furthermore, the tin-blocking part 3 of the block 1 can block the dense-pin components in different soldering areas, preventing the tin beads from falling on the dense pins during tin explosion and causing component short circuit.

[0047] In some embodiments, the length direction of the first chute 202 is perpendicular to the length direction of the second chute. The first chute 202 on the support member 2 cooperates with the second chute provided on the fixed frame, and the block 1 on the support member 2 can be adjusted to be located above different soldering areas of the PCB main board along the directions of the first chute 202 and the second chute, so that the tin-blocking part 3 of the block 1 can freely move to the position where the dense-pin components that need to block the falling of tin beads are located, greatly improving the versatility of the tin-blocking tooling and making it applicable to the tin-blocking operations of multiple models of PCB main boards.

[0048] The main functions of the present utility model are as follows:

[0049] 1. The present utility model is provided with a block 1 and a support member 2. A positioning notch 401 is provided on the block 1, and the block 1 is fixedly connected to the support member 2 through the positioning notch 401. The tin-blocking part 3 of the block 1 is placed above the dense-pin components to block the dense pins, preventing the tin beads from falling and sticking to the dense pins during tin explosion and causing the problem of short circuit between pins.

[0050] 2. The present utility model also adjusts the installation orientation of the U-shaped positioning notch and the support member 2 through the U-shaped positioning notch, and adjusts the distance between the tin-blocking part 3 of the block 1 and the dense-pin components on the main board, so that the tin-blocking part 3 can not only cover the dense-pin components but also not interfere with the protruding components around the dense-pin components, improving the versatility of the tin-blocking tooling.

[0051] The above are only specific embodiments of the present utility model, enabling those skilled in the art to understand or implement the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather will conform to the broadest scope consistent with the principles and novel features claimed herein.

[0052] In summary, after reading the documents of the present utility model, various other corresponding transformation schemes made by those of ordinary skill in the art without creative mental labor according to the technical solutions and technical concepts of the present utility model all fall within the scope protected by the present utility model.

Claims

1. A solder-blocking tooling, characterized in that It includes a stop block and a support member. The stop block is provided with a solder blocking portion and a fixing portion. One side of the solder blocking portion extends and is connected to one side of the fixing portion. The fixing portion is convexly formed with a positioning notch, and the positioning notch is fixedly installed on the support member. The solder blocking portion is disposed above the dense pins.

2. The solder blocking tooling according to claim 1, wherein, The fixing portion is sequentially connected and composed of a first limiting portion, a connecting portion, and a second limiting portion. The first limiting portion and the second limiting portion are oppositely arranged. The solder blocking portion is connected to the first limiting portion. The first limiting portion, the connecting portion, and the second limiting portion form the positioning notch.

3. A solder blocking tooling according to claim 1 or 2, characterized in that, The positioning notch is in a U-shaped configuration, and the opening direction of the positioning notch faces or faces away from the dense pins.

4. A solder-blocking tooling according to claim 3, characterized in that, The inner side or the outer side of the positioning notch abuts against the support member.

5. A solder blocking tooling according to claim 1 or 4, characterized in that, The positioning notch is provided with a fixing through hole, and the support member is provided with a plurality of positioning through holes. The fixing through hole and the positioning through hole are connected by a fixing member.

6. A solder blocking tooling according to claim 1 or 4, characterized in that, The positioning notch is provided with a fixing through hole, and the support member is provided with a first sliding groove. The fixing through hole and the first sliding groove are connected by a fixing member.

7. The solder-blocking tooling according to claim 3, characterized in that, A notch is formed on the outer periphery of the solder blocking portion to form an avoidance portion.

8. A solder blocking tooling according to claim 6, characterized in that, It further includes a positioning frame. The support member is fixedly assembled on the positioning frame. Second sliding grooves are respectively provided on both sides of the positioning frame. Positioning members are respectively provided at both ends of the support member, and the positioning members move along the length direction of the second sliding groove.

9. The solder blocking tooling according to claim 8, wherein The length direction of the second sliding groove is perpendicular to the length direction of the first sliding groove.

10. A solder-blocking tooling according to claim 3, characterized in that, An arc-shaped notch is formed on the outer side of the solder blocking portion to form an avoidance portion.

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