Selective welding protection jig

Abstract

The utility model relates to the field of PCB (Printed Circuit Board) processing, and particularly discloses a selective welding protection jig which comprises a base; the jig seat assembly is connected with the base; the protection frame assembly is connected with the jig seat assembly in a sliding manner; the partition frame assembly is movably connected with the protection frame assembly in an inserted mode and used for being matched with the protection frame assembly to complete welding isolation. Wherein the protection frame assembly comprises a sliding frame assembly, and the sliding frame assembly is connected with the jig seat assembly in a sliding mode; the heat dissipation assembly is connected with the top side of the sliding frame assembly and used for assisting heat dissipation, the jig can achieve welding area isolation through the sliding frame assembly and the partition frame assembly, different elements on a plate can adopt different temperatures and welding time, the elements which are not resistant to high temperature are protected, and meanwhile the heat dissipation assembly is used for assisting heat dissipation. And the heat dissipation assembly communicating with the partition frame assembly is arranged, and the heat gas discharging speed close to the welding position of the plate is further increased.

Description

Technical Field

[0001] The utility model relates to the PCB processing industry, and specifically to a selective soldering protection fixture. Background Technique

[0002] In the electronics manufacturing industry, wave soldering, as an efficient and economical automated soldering technology, is widely used in the mass production of circuit board components. This technology realizes the electrical connection and mechanical fixation between the pins of electronic components and the pads of the circuit board by passing the circuit board through a molten solder wave at a certain angle and speed.

[0003] With the increasing miniaturization, high integration and complexity of electronic products, the traditional wave soldering process faces many challenges, especially when dealing with components with high heat dissipation requirements, the problems are particularly prominent. In view of the above problems, there is an urgent need for a solution that can effectively improve the quality of wave soldering. Under this background, a selective soldering protection fixture is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a selective soldering protection fixture to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A selective soldering protection fixture, comprising:

[0007] A base;

[0008] A fixture seat assembly, which is connected to the base;

[0009] A protection frame assembly, which is slidably connected to the fixture seat assembly;

[0010] A partition frame assembly, which is inserted and movably connected to the protection frame assembly and is used to cooperate with the protection frame assembly to complete welding isolation;

[0011] Among them, the protection frame assembly includes:

[0012] A sliding frame assembly, which is slidably connected to the fixture seat assembly;

[0013] A heat dissipation assembly, which is connected to the top side of the sliding frame assembly and is used for heat dissipation assistance.

[0014] Compared with the prior art, the beneficial effect of the utility model is that: this fixture can realize welding area isolation through the sliding frame assembly and the partition frame assembly, so that different components on the board can adopt different temperatures and welding times to protect components that are not resistant to high temperatures. At the same time, a heat dissipation assembly communicated with the partition frame assembly is provided to further improve the heat dissipation speed of the hot gas near the welding position of the board. Brief Description of the Drawings

[0015] Figure 1 This is a top - view structural schematic diagram of a selective soldering protection fixture in an embodiment of the present utility model.

[0016] Figure 2 This is a front - view structural schematic diagram of a selective soldering protection fixture in an embodiment of the present utility model.

[0017] Figure 3 This is a structural schematic diagram of a partition frame assembly in a selective soldering protection fixture in an embodiment of the present utility model.

[0018] In the figure: 1 - base, 2 - fixture base assembly, 3 - protection frame assembly, 4 - sliding frame assembly, 5 - heat dissipation assembly, 6 - partition frame assembly, 201 - fixture base, 202 - component placement area, 203 - limit groove, 401 - connecting frame, 402 - sliding frame, 403 - driving member, 404 - through - slot, 501 - air chamber, 502 - negative pressure member, 503 - connecting hose, 601 - partition frame, 602 - air intake grid frame, 603 - communication groove. Detailed Description of the Embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.

[0020] A selective soldering protection fixture, in one embodiment of the present utility model, as Figure 1 and Figure 2 shown, includes: a base 1; a fixture base assembly 2, the fixture base assembly 2 is connected to the base 1; a protection frame assembly 3, the protection frame assembly 3 is slidably connected to the fixture base assembly 2; a partition frame assembly 6, the partition frame assembly 6 is inserted and movably connected to the protection frame assembly 3, and is used to cooperate with the protection frame assembly 3 to complete welding isolation; wherein, the protection frame assembly 3 includes: a sliding frame assembly 4, the sliding frame assembly 4 is slidably connected to the fixture base assembly 2; a heat dissipation assembly 5, the heat dissipation assembly 5 is connected to the top side of the sliding frame assembly 4 and is used for heat dissipation assistance.

[0021] In one embodiment of the present utility model:

[0022] As Figure 1 and Figure 2As shown, the fixture base assembly 2 includes: a fixture base 201, which is connected to the base 1; a component placement area 202, which is arranged on the top side of the fixture base 201; at least two groups of limit slots 203, which are arranged on both sides of the fixture base 201 and are used for connecting and limiting the sliding frame assembly 4.

[0023] The plate to be welded is placed on the component placement area 202. The sliding frame assembly 401 can slide and adjust along the direction of the limit slot 203. When welding one side of the plate, the other sliding frame assembly 4 can be moved, and the partition frame assembly 6 of the other sliding frame assembly 4 can be synchronously moved down for adjustment to complete welding isolation. Different components on the plate adopt different temperatures and welding times, which can protect components that are not resistant to high temperatures.

[0024] In an embodiment of the present invention:

[0025] As Figure 1 and Figure 2 shown, the sliding frame assembly 4 includes: at least two connecting frames 401, and the connecting frames 401 on both sides are fitted and slidably connected with the limit slots 203; a sliding frame 402, which is connected to the sides of the two connecting frames 401 away from the fixture base 201; at least two driving members 403, the outer sides of the driving members 403 are connected to the sliding frame 402, and the top sides of the driving members 403 are movably connected through the sliding frame 402; the driving member 403 is selected as an electric telescopic frame; a through groove 404, which is arranged on the top side of the sliding frame 402 and is used for the movement and connection of the partition frame assembly 6.

[0026] The sliding frame 402 is arranged in an inverted "U" shape, and the connecting frames 401 on both sides and the sliding frame 402 are integrally arranged. When the sliding frame 402 moves, the connecting frames 401 are limited and slide inside the limit slots 203. The fixed ends of the driving members 403 are connected to the inner sides of the sliding frame 402, and the movable ends of the driving members 403 are movably connected through the sliding frame 402.

[0027] In this application, the driving member 403 is not limited to an electric telescopic frame. It can also adopt a linear motor, an electric cylinder or a cylinder drive, etc., as long as it can realize the movement and adjustment of the partition frame assembly 6, and no specific limitation is made here.

[0028] In an embodiment of the present invention:

[0029] As Figure 1 shown, the heat dissipation assembly 5 includes: an air chamber 501, which is connected and communicated with the top side of the sliding frame 402; a negative pressure member 502, which is connected to the side of the air chamber 501 away from the sliding frame 402; the negative pressure member 502 is selected as a negative pressure fan; a connecting hose 503, which is connected and communicated with the air chamber 501.

[0030] The interior of the partition frame assembly 6 is hollow. A filter screen groove (not shown in the figure) is provided at the bottom of the top side of the sliding frame 402. When the negative pressure member 502 operates, negative pressure can be formed both inside the sliding frame 402 and at the position of the filter screen groove, and at the same time, a certain negative pressure is also formed inside the connecting hose 503, thereby realizing the welding heat dissipation assistance in the area of the sliding frame 402 on this side.

[0031] In an embodiment of the present invention:

[0032] As Figures 1 to 3 shown, the partition frame assembly 6 includes: a partition frame 601, the through groove 404 of the partition frame 601 is connected in a penetrating and sliding manner, and is connected to the end of the driving member 403 away from the fixture base 201; an air inlet grid 602, the air inlet grid 602 is communicated and arranged outside the partition frame 601; a communication groove 603, the communication groove 603 is communicated with the partition frame 601 and is also communicated with the end of the connecting hose 503 away from the air chamber 501.

[0033] When the driving member 403 operates, it can drive the partition frame 601 to move vertically downward to a set height, thereby realizing the isolation on both sides of the partition frame 601. The interior of the partition frame 601 is hollow. When the negative pressure member 501 operates, negative pressure can be formed inside the partition frame 601 and the communication groove 603, further improving the heat gas discharge speed near the welding position of the plate member.

[0034] The working principle of the present utility model is as follows: The plate to be welded is placed on the component placement area 202. The sliding frame assembly 401 can slide and adjust along the direction of the limiting groove 203. When welding one side of the plate, the sliding frame assembly 4 on the other side can be moved, and the partition frame assembly 6 of the sliding frame assembly 4 on the other side is synchronously lowered and adjusted to complete welding isolation. Different components on the plate adopt different temperatures and welding times, which can protect components that are not resistant to high temperatures. The sliding frame 402 is arranged in an inverted "U" shape, and the two side connecting frames 401 and the sliding frame 402 are integrally arranged. When the sliding frame 402 moves, the connecting frame 401 is limited and slides inside the limiting groove 203. The fixed end of the driving member 403 is connected to the inner side of the sliding frame 402, and the movable end of the driving member 403 is movably connected through the sliding frame 402. The driving member 403 is not limited to an electric telescopic frame. It can also adopt a linear motor, an electric cylinder, or a cylinder drive, etc., as long as it can realize the movement and adjustment of the partition frame assembly 6, and no specific limitation is made here. The inside of the partition frame assembly 6 is hollow. A filter screen groove (not shown in the figure) is provided at the bottom of the top side of the sliding frame 402. When the negative pressure member 502 operates, negative pressure can be formed both inside the sliding frame 402 and at the position of the filter screen groove, and at the same time, negative pressure with a certain pressure is also formed inside the connecting hose 503, thereby realizing the auxiliary welding heat dissipation in the area of the sliding frame 402 on this side. When the driving member 403 operates, it can drive the partition frame 601 to move vertically downward to a set height, thereby realizing the isolation on both sides of the partition frame 601. The inside of the partition frame 601 is hollow. When the negative pressure member 501 operates, negative pressure can be formed inside the partition frame 601 and the communication groove 603, further improving the heat dissipation speed of the hot gas near the welding position of the plate.

[0035] In summary, this jig can realize the isolation of the welding area through the sliding frame assembly 4 and the partition frame assembly 6, enabling different components on the plate to adopt different temperatures and welding times to protect components that are not resistant to high temperatures. At the same time, a heat dissipation assembly 5 communicated with the partition frame assembly 6 is provided to further improve the heat dissipation speed of the hot gas near the welding position of the plate.

[0036] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A selective soldering protection fixture, characterized in that Comprising: Base; Fixture seat assembly, the fixture seat assembly is connected to the base; Protective frame assembly, the protective frame assembly is slidably connected to the fixture seat assembly; Partition frame assembly, the partition frame assembly is inserted and movably connected to the protective frame assembly for cooperating with the protective frame assembly to complete welding isolation; Wherein, the protective frame assembly includes: Sliding frame assembly, the sliding frame assembly is slidably connected to the fixture seat assembly; Heat dissipation assembly, the heat dissipation assembly is connected to the top side of the sliding frame assembly for heat dissipation assistance.

2. The selective soldering protection fixture according to claim 1, wherein The fixture seat assembly includes: Fixture seat, the fixture seat is connected to the base; Component placement area, the component placement area is arranged on the top side of the fixture seat; At least two sets of limit slots, the limit slots are arranged on both sides of the fixture seat for connection limit of the sliding frame assembly.

3. The selective soldering protection fixture according to claim 2, wherein The sliding frame assembly includes: At least two connecting frames, the connecting frames on both sides are inserted and slidably connected to the limit slots; Sliding frame, the sliding frame is connected to the side of the connecting frames on both sides away from the fixture seat; At least two driving parts, the outer sides of the driving parts are connected to the sliding frame, and the top sides of the driving parts are movably connected through the sliding frame; Through slot, the through slot is arranged on the top side of the sliding frame for movement connection of the partition frame assembly.

4. The selective soldering protection fixture according to claim 3, characterized in that, The heat dissipation assembly includes: Air chamber, the air chamber is connected and communicated with the top side of the sliding frame; Negative pressure part, the negative pressure part is connected to the side of the air chamber away from the sliding frame; Connecting hose, the connecting hose is connected and communicated with the air chamber.

5. The selective soldering protection jig according to claim 2, wherein The partition frame assembly includes: Partition frame, the partition frame is slidably connected through the through slot and is connected to the end of the driving part away from the fixture seat; Air inlet wire frame, the air inlet wire frame is connected and communicated on the outside of the partition frame; Communication slot, the communication slot is connected to the partition frame and is connected and communicated with the end of the connecting hose away from the air chamber.

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