Pseudo soldering prevention jig for welding

Abstract

The utility model discloses a pseudo soldering prevention jig, which relates to the technical field of welding and comprises a pseudo soldering prevention jig body, the pseudo soldering prevention jig body is of a frame structure, a plurality of parallel pseudo soldering prevention plates are arranged in the frame of the pseudo soldering prevention jig body, a plurality of springs are arranged at the tops of the pseudo soldering prevention plates, and the springs are arranged on the frame of the pseudo soldering prevention jig body. A plurality of grooves are formed in the top of the anti-virtual plate, and one end of each spring is arranged in the corresponding groove; the pseudo soldering prevention jig body is installed on a ceramic copper-clad plate to be welded, the other end of the spring on the pseudo soldering prevention jig body makes contact with the top of a welding object, and during furnace-passing welding and when soldering tin liquid promotes the terminal to float upwards, the elastic force of the flexible spring plays an auxiliary material pressing function on the welding object on the top of the terminal, so that the pseudo soldering problem caused by floating of the terminal at the bottom of the welding object is avoided; and the welding quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a welding false welding prevention jig. Background Art

[0002] When the terminals of the objects to be welded on the ceramic copper-clad board are welded through the furnace, there is solder liquid between the terminals of the objects to be welded and the ceramic copper-clad board. During the furnace welding, the solder temperature in the furnace is about 280°, and the objects to be welded are not firmly fixed. The high-temperature solder liquid will cause the objects to be welded on the ceramic copper-clad board to float, which is easy to produce cold solder joints, leaving only a small amount of tin solder columns at the solder joints, resulting in poor contact of the objects to be welded and intermittent connection. Pressure cannot be applied to the top of the objects to be welded, which will cause the bottom of the terminals to be bent.

[0003] In view of the above problems, a welding anti-false welding fixture is proposed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a welding cold-weld prevention jig, which avoids the cold-weld problem caused by floating of the bottom terminal of the welding object and improves the quality of welding.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding anti-false weld jig, including an anti-false weld jig body, the anti-false weld jig body is a frame structure, a plurality of parallel anti-false weld plates are arranged inside the frame of the anti-false weld jig body, a plurality of springs are arranged on the top of the anti-false weld plate, a plurality of grooves are opened on the top of the anti-false weld plate, and one end of the spring is arranged in the groove.

[0006] In order to increase the contact area between the spring and the top of the welded object, as a preferred welding anti-false weld jig of the utility model, the other end of the spring is provided with a contact piece, and the diameter of the contact piece is smaller than the diameter of the groove.

[0007] In order to strengthen the compressive strength of the anti-false welding plates, as a preferred anti-false welding jig of the utility model, connecting strips are arranged between all the anti-false welding plates.

[0008] In order to install the anti-false solder joint jig body on the ceramic copper-clad plate to be welded, as a preferred anti-false solder joint jig of the utility model, the frame corners of the anti-false solder joint jig body are all provided with fixed ear seats.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0010] The utility model installs the anti-false solder joint jig body onto the ceramic copper-clad plate to be welded by installing a spring in the groove of the anti-false solder joint plate, and the other end of the spring on the anti-false solder joint plate contacts the top of the welded object. During furnace welding, when the solder liquid causes the terminal to float up, the elastic force of the flexible spring assists in pressing the welded object on the top of the terminal, thereby avoiding the problem of false solder joints caused by the floating of the terminal at the bottom of the welded object and improving the quality of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 It is a schematic diagram of the cross-sectional structure of the anti-empty plate of the utility model;

[0013] Figure 3 It is a side structural schematic diagram of the main body of the anti-false welding fixture of the utility model.

[0014] In the figure: 1. Anti-false welding fixture body; 2. Anti-false welding plate; 3. Spring; 4. Groove; 5. Contact piece; 6. Connecting strip; 7. Fixed ear seat. DETAILED DESCRIPTION

[0015] See also Figures 1 to 3 A welding anti-false weld jig includes an anti-false weld jig body 1. The anti-false weld jig body 1 is a frame structure. A plurality of parallel anti-false weld plates 2 are arranged inside the frame of the anti-false weld jig body 1. A plurality of springs 3 are arranged on the top of the anti-false weld plate 2. A plurality of grooves 4 are opened on the top of the anti-false weld plate 2. One end of the spring 3 is arranged in the groove 4.

[0016] In the present embodiment: a plurality of anti-false plates 2 are arranged inside the frame of the anti-false solder joint jig body 1, a plurality of grooves 4 are opened on the anti-false plates 2, a flexible spring 3 is arranged in each groove 4, the anti-false solder joint jig body 1 is installed on the ceramic copper-clad board to be welded, and the other end of the spring 3 on the anti-false plate 2 is in contact with the top of the welded object, when the solder liquid causes the terminal to float up, the elastic force of the flexible spring 3 assists in pressing the welded object at the top of the terminal, thereby avoiding the problem of false solder joint caused by the floating of the terminal at the bottom of the welded object, and improving the quality of welding.

[0017] As a technical optimization solution of the present invention, a contact piece 5 is provided at the other end of the spring 3 , and the diameter of the contact piece 5 is smaller than the diameter of the groove 4 .

[0018] In this embodiment: the spring 3 is made of soft copper material, the contact piece 5 increases the contact area with the object to be welded on the top of the terminal, realizes the material pressing function for the terminal, and avoids the generation of cold solder joints when the terminals are welded. The diameter of the contact piece 5 is smaller than the diameter of the groove 4, which makes it easy for the contact piece to move into the groove 4.

[0019] As a technical optimization solution of the utility model, connecting strips 6 are provided between all the anti-hollow plates 2.

[0020] In the present embodiment: the compressive strength of the anti-void plate 2 is enhanced by the connecting strip 6, so that the anti-void plate 2 is not easily deformed, and the connecting strip 6 is also provided on the left and right sides of the anti-void plate 2 facing the welding jig body 1, and the connecting strip 6 is connected to the inner wall of the welding jig body 1.

[0021] As a technical optimization solution of the present invention, fixed ear seats 7 are provided on the corners of the frame of the anti-false welding fixture body 1.

[0022] In this embodiment, the ear seat 7 is fixed to facilitate the installation of the anti-false solder joint jig body 1, and the anti-false solder joint jig body 1 is easily installed on the ceramic copper-clad board to be welded.

[0023] Working principle: mounting holes are reserved on the existing ceramic copper-clad boards to be welded, and the mounting holes are used for the later installation and welding of the ceramic copper-clad boards. The fixed ear seats 7 on the anti-false soldering jig body 1 correspond one-to-one to the mounting holes on the ceramic copper-clad boards to be welded. The anti-false soldering jig body 1 is installed on the ceramic copper-clad boards to be welded through the mounting holes and the fixed ear seats 7 using screws, and the other end of the spring 3 on the anti-false soldering plate 2 is in contact with the top of the welded object. During furnace welding, when the solder liquid causes the terminal to float up, the elastic force of the flexible spring 3 assists in pressing the welded object on the top of the terminal, thereby avoiding the problem of false soldering caused by the floating of the terminal at the bottom of the welded object, thereby improving the quality of welding.

[0024] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A welding cold weld prevention jig, comprising a cold weld prevention jig body (1), characterized in that: The anti-false welding jig body (1) is a frame structure, a plurality of parallel false welding jig plates (2) are arranged inside the frame of the anti-false welding jig body (1), a plurality of springs (3) are arranged on the top of the false welding jig plates (2), a plurality of grooves (4) are opened on the top of the false welding jig plates (2), and one end of the spring (3) is arranged in the groove (4).

2. The welding anti-false welding jig according to claim 1, characterized in that: The other end of the spring (3) is provided with a contact piece (5), and the diameter of the contact piece (5) is smaller than the diameter of the groove (4).

3. The welding anti-false welding jig according to claim 1, characterized in that: All the anti-empty plates (2) are provided with connecting strips (6) between each other.

4. The welding anti-false welding jig according to claim 1, characterized in that: Fixed ear seats (7) are provided on the frame corners of the anti-false welding jig body (1).

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