TR module reflow soldering clamping tool

Abstract

The application discloses a TR module reflow soldering clamping tool, which comprises a base, a connector pressing plate, a top plate, a connecting piece and a positioning pin, wherein the base comprises a support, a first fixed plate, a first pressing block, a boss and a buckle, the support is provided with a groove matched with the size of a TR module to be soldered, the boss is arranged around the support, the buckle is fixed on the boss and used for fixing the connector pressing plate, the first fixed plate and the first pressing block are arranged above the support and used for pressing the components of the TR module, the connector pressing plate is fixed on the base through a rotating buckle and used for pressing the connector of the TR module, the top plate is arranged above the base and comprises a first cover plate and a second pressing block and is used for pressing the components of the TR module, the connecting piece is installed on the top plate and used for connecting the top plate and the base, and the positioning pin is installed on the support and used for aligning the position of the top plate and the base. The application can realize the integrated welding of the TR module with multiple components and double-sided height self-adaptation.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of TR module automatic welding, in particular to a TR module reflow soldering clamping tool. BACKGROUND

[0002] TR assembly (transmit-receive assembly) is the core component of phased array radar, a radar has thousands of TR assemblies, and each TR assembly is composed of multiple TR modules. As the core of TR assembly, the welding quality of TR module has an important influence on the product performance of TR assembly. In order to ensure the normal work of TR assembly, the welding consistency and reliability of TR module need to be effectively guaranteed.

[0003] In TR module batch production, reflow soldering is a process means that can greatly improve production efficiency, which must be used in cooperation with the corresponding soldering tool, but the existing tool has the following shortcomings: (1) there is a height difference between different to-be-welded parts, and the traditional non-elastic pressing block cannot make up for the slight height difference, causing poor pressing; (2) only single-sided welding can be realized, and synchronous double-sided welding cannot be realized, increasing the process difficulty; (3) clamping is inconvenient, time-consuming and affects production efficiency. SUMMARY

[0004] The purpose of the present application is to provide a TR module reflow soldering clamping tool, which can realize multi-component double-sided height self-adaptive integrated welding of TR module.

[0005] One aspect of the present application provides a TR module reflow soldering clamping tool, comprising a base, a connector pressing plate, a top plate, a connecting piece and a positioning pin,

[0006] The base comprises a support, a first fixed plate, a first pressing block, a boss and a buckle, the support is provided with a groove matching the size of the TR module to be welded, for placing the TR module, the boss is arranged around the support, the buckle is fixed on the boss for fixing the connector pressing plate, the first fixed plate and the first pressing block are arranged above the support, the first pressing block is fixed on the first fixed plate for pressing the components of the TR module placed on the support;

[0007] The connector pressing plate is fixed on the base through the rotating buckle for pressing the connector of the TR module;

[0008] The top plate is arranged above the base and comprises a first cover plate and a second pressing block, the second pressing block is fixed on the first cover plate for pressing the components of the TR module placed on the support;

[0009] The connecting piece is installed on the top plate for connecting the top plate and the base, and the positioning pin is installed on the support for position alignment of the top plate and the base.

[0010] Preferably, the base further comprises a first pressing needle and a second fixing plate arranged below the support, the first pressing needle is connected with the first fixing plate through the second fixing plate and the support, and is used for pressing the components of the TR module placed on the support.

[0011] Preferably, the first fixing plate, the first pressing block, the first cover plate and the second pressing block are matched with the height of the components of the TR module placed in the groove of the support.

[0012] Preferably, the base further comprises a guide column fixed on the boss of the support, and used for guiding and positioning the connector pressing plate.

[0013] Preferably, the connector pressing plate comprises a first pressing plate, a second pressing plate, a second pressing needle and a top column, the first pressing plate and the second pressing plate are attached to each other, the second pressing needle is assembled on the first pressing plate and the second pressing plate, and the top column is assembled on the second pressing needle at one end and is provided with a groove matched with the needle core of the connector of the TR module at the other end.

[0014] Preferably, the top plate further comprises a third pressing needle, a second cover plate and a third cover plate, the second cover plate is arranged above the third cover plate, the third pressing needle is assembled on the second cover plate and the third cover plate, and a connecting piece is installed on the second cover plate.

[0015] Preferably, the connecting piece comprises a first fixing block, a second fixing block and a clamping block, the first fixing block is provided with a cavity matched with the size of the clamping block, and is used for mounting the clamping block, the second fixing block is connected to the side surface of the first fixing block, and the upper surface of the first fixing block is provided with a through hole matched with the size of the positioning pin, and is used for smoothly passing the positioning pin.

[0016] Preferably, the connecting piece further comprises a handle and a spring assembled on the clamping block, the upper surface of the first fixing block is provided with a long through slot, and the handle can be moved forward and backward, the movement of the handle can realize the extension and contraction of the spring and the movement of the clamping block, so that the positioning pin can smoothly pass through the connecting piece and be locked.

[0017] Preferably, one end of the positioning pin is threaded, and is used for mounting the base, the other end is tapered, and is used for locking the connecting piece in the height direction, and the middle part is a light column, the size of the light column is smaller than the diameter of the tapered part, and is used for assembling the connecting piece, and the clamping block clamps the position of the light column.

[0018] The TR module reflow soldering clamp tool according to the above aspect of the present application can realize the self-adaptive integrated welding of the double-sided height of the multiple components of the TR module. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the present application, the drawings used in the description of the embodiments of the present application will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort based on these drawings.

[0020] Figure 1 The structure diagram of the TR module reflow soldering clamping tool of an embodiment of the present application is shown in FIG. 1.

[0021] Figure 2 The structure diagram of the base in FIG. 1 is shown in FIG. 2. Figure 1

[0022] Figure 3 The structure diagram of the connector pressing plate in FIG. 1 is shown in FIG. 3. Figure 1

[0023] Figure 4 The structure diagram of the top plate in FIG. 1 is shown in FIG. 4. Figure 1

[0024] Figure 5 The structure diagram of the connecting piece in FIG. 1 is shown in FIG. 5. Figure 1

[0025] Figure 6 The structure diagram of the positioning pin in FIG. 1 is shown in FIG. 6. Figure 1 DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be described clearly and completely in combination with the drawings. Obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present application.

[0027] The embodiment of the present application provides a TR module reflow soldering clamping tool, which can realize double-sided synchronous welding of multiple components such as microstrip sheet, printed board, ring isolator and connector of the TR module. Figure 1 The structure diagram of the TR module reflow soldering clamping tool of an embodiment of the present application is shown in FIG. 1. As shown in FIG. 1, the TR module reflow soldering clamping tool of the embodiment of the present application includes a base 1, a connector pressing plate 2, a top plate 3, a connecting piece 4 and a positioning pin 5. Figure 1

[0028] ​​​​​​The base 1 is used to realize the rough positioning of the TR module and the compression of the microstrip patch, printed board and other components on the back of the TR module during the welding process. The connector pressing plate 2 is used to realize the compression of the connector of the TR module during the welding process. The top plate 3 is used to realize the compression of the microstrip patch, ring isolator and other components on the front of the TR module during the welding process. The top plate 3 is connected with the base 1 through the connecting piece 4, and the top plate 3 and the base 1 are positionally aligned through the positioning pin 5. The two ends of the support 8 are provided with two threaded holes for installing the positioning pin 5.

[0029] Figure 2 For Figure 1 , the structure diagram of the base is shown. As shown in Figure 2 , the base 1 includes a support 8, a first fixed plate 9, a first pressing block 10, a boss and a buckle 12. The support 8 is provided with a groove matched with the size of the TR module to be welded, for installing and roughly positioning the TR module. During the welding, the connector is assembled into the TR module and placed in the corresponding groove of the support 8, and when the connector pressing plate 2 is assembled to the base 1, the buckle 12 is rotated to fix the position of the connector pressing plate 2 relative to the base 1, so as to realize the compression of the connector during the welding process. The side surface of the boss is provided with a through hole for fixing the buckle 12. The buckle 12 is provided with a threaded hole and is fixed on the boss by a screw, and the buckle 12 can rotate around the screw as the axis, for installing and removing the connector pressing plate 2.

[0030] The base 1 further includes the first fixed plate 9 and the first pressing block 10 arranged above the support 8. The first fixed plate 9 is provided with a threaded hole for fixing the first pressing block 10. The first pressing block 10 is made of polytetrafluoroethylene material, which is resistant to high temperature and can protect the welding parts (components of the TR module to be welded) from being damaged. The first fixed plate 9 and the first pressing block 10 are designed in blocks according to the height of the welding parts, i.e. corresponding first fixed plates 9 and first pressing blocks 10 are designed for different welding parts, so as to realize the continuous pressing during the welding process of the welding parts with different height differences. The shape of the first pressing block 10 is determined according to the shape of the welding part and the distribution position of the device on the welding part. For example, for the microstrip patch, the shape of the first pressing block 10 should be the same as the outer shape of the microstrip patch, and the size is slightly smaller than that of the microstrip patch. For the printed board with devices, the first pressing block 10 should be consistent with the outer shape of the printed board while shallow grooves are arranged at the positions of the corresponding devices, so as to realize good contact with the welding part without damaging the devices.

[0031] The base 1 also includes a first pressure pin 6 and a second fixing plate 7 disposed below the support 8. The second fixing plate 7 and the support 8 are respectively provided with stepped through holes and through holes matching the first pressure pin 6 for mounting the first pressure pin 6. The first pressure pin 6 has threaded holes, and the first fixing plate 9 is interconnected with the first pressure pin 6 by screws. The first pressure pin 6 contains a spring, which can achieve a certain degree of compression, and the release of the spring force allows for continuous pressure during welding. Furthermore, by adjusting the spring force of the first pressure pin 6, it can adapt to different height differences in the workpieces to be welded, achieving continuous pressure during welding.

[0032] The base 1 also includes guide posts 11. Each of the four sides of the support 8 has a boss with a threaded hole on its end face for fixing the guide posts 11. The guide posts 11 are used to guide and position the connector pressure plate 2. The bosses, guide posts 11 and buckles 12 together fix the position of the connector pressure plate 2 relative to the support 8.

[0033] Figure 3 for Figure 1 A schematic diagram of the connector pressure plate in the diagram. (See attached diagram.) Figure 3 As shown, the connector pressure plate 2 includes a first pressure plate 13, a second pressure plate 14, a second pressure pin 26, and a top post 15. The first pressure plate 13 has a stepped through hole on the side that mates with the second pressure plate 14, and the second pressure plate 14 has a through hole on the side that mates with the first pressure plate 13, for mounting the second pressure pin 26. The first pressure plate 13 and the second pressure plate 14 have the same through holes at the positions of the guide posts 11 of the base 1, for smoothly mounting the connector pressure plate 2 onto the base 1, and fixing their relative positions using a snap-fit ​​12. One end of the top post 15 is threaded for assembly onto the second pressure pin 26, and the other end has a groove that matches the connector pin core to be soldered. When the connector pressure plate 2 is assembled onto the base 1, it is used to press the connector while avoiding damage to the connector pin core. Like the first pressure pin 26, the second pressure pin 26 has an internal spring, allowing for a certain degree of compression, and the release of the spring force ensures continuous pressure during the soldering process.

[0034] Figure 4 for Figure 1 A structural diagram of the top plate. (See diagram below.) Figure 4 As shown, the top plate 3 includes a first cover plate 18 and a second pressure block 19. The second pressure block 19 is fixed on the first cover plate 18. The first cover plate 18 and the second pressure block 19 are designed in sections according to the different heights of the workpieces to be welded, which can achieve continuous pressure during the welding process of workpieces with different height differences. The shape of the second pressure block 19 is determined according to the shape of the workpiece and the distribution position of the components on the workpiece, which can achieve good contact with the workpiece without damaging the components.

[0035] The top plate 3 further comprises a third pressing needle 27, a second cover plate 16 and a third cover plate 17, the second cover plate 16 is arranged above the third cover plate 17, the second cover plate 16 is provided with a through hole corresponding to the third cover plate 17, which is used for assembling and fixing the third pressing needle 27. The second cover plate 16 is provided with a position-symmetrical threaded hole, which is used for mounting the connecting piece 4. The second cover plate 16 is provided with a stepped through hole on one side which matches the size of the third pressing needle 27, and the third cover plate 17 is provided with a through hole on one side which matches the shape and size of the third pressing needle 27.

[0036] The second pressing needle 26 and the third pressing needle 27 are the same as the first pressing needle 6, and are provided with springs inside, which can realize compression, and can realize continuous pressure during the welding process through the release of spring elasticity. In addition, through the spring elasticity zooming, the different height differences of the to-be-welded pieces can be adapted to realize continuous pressure during the welding process.

[0037] The first cover plate 18 is provided with a counterbore which is mounted on the third pressing needle 27 to realize the connection between the second cover plate 16 and the third cover plate 17. Meanwhile, the first cover plate 18 is provided with a threaded hole, and the second pressing block 19 is provided with a counterbore, which is used for connecting the first cover plate 18 and the second pressing block 19.

[0038] Figure 5 For Figure 1 the structure diagram of the connecting piece. As shown in Figure 5 , the connecting piece 4 comprises a first fixed block 20, a handle 21, a second fixed block 22, a clamping block 23 and a spring 24. The first fixed block 20 is provided with a cavity which matches the size of the clamping block 23, which is used for mounting the clamping block 23. Meanwhile, the upper surface of the first fixed block 20 is provided with two through holes which are used for connecting with the top plate 3 by using screws. The side surface of the first fixed block 20 is provided with a threaded hole which is used for connecting with the second fixed block 22. After the two are connected, the position of the clamping block can be fixed. The upper surface of the first fixed block 20 is provided with a through hole which matches the size of the positioning pin 5, which is used for realizing the smooth passing of the positioning pin 5. One side of the clamping block 23 is provided with two shallow grooves which are used for mounting the spring 24. The second fixed block 22 is provided with a shallow groove at the corresponding position of the clamping block 23, which is used for mounting the spring 24. The upper surface of the clamping block 23 is provided with a threaded hole which can be used for assembling the handle 21. The upper surface of the first fixed block 20 is provided with a long through groove which can realize the forward and backward movement of the handle 21. When the handle 21 moves, the spring 24 can be stretched and contracted, and the clamping block 23 can also move, so that the positioning pin 5 can smoothly pass through the connecting piece 4 and be locked.

[0039] Figure 6 For Figure 1 the structure diagram of the positioning pin. As shown in Figure 6As shown, the positioning pin 5 is threaded at one end for mounting with the base 1. The other side is tapered for locking the connector 4 in the height direction, and the middle is a light column with a diameter smaller than the tapered diameter for assembly with the connector 4. The clamping block 23 clamps the position of the light column, and after locking, the welding process can be continuously pressed. The length of the light column is determined according to the compression amount required by use.

[0040] The TR module reflow soldering clamping tool according to the above-mentioned embodiments of the present application can realize double-sided synchronous welding of the microstrip sheet, printed board, ring-shaped isolator, connector and other components of the TR module, reduce the process difficulty, ensure continuous pressure during the welding process, compensate for the poor pressure connection caused by the height difference of the components, and realize convenient and fast clamping of the tool, effectively ensure the welding quality and production efficiency.

[0041] The above only describes certain exemplary embodiments of the present application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present application. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A TR module reflow soldering fixture, characterized by, It comprises a base (1), a connector pressing plate (2), a top plate (3), a connecting piece (4) and a positioning pin (5), The base (1) comprises a support (8), a first fixed plate (9), a first pressing block (10), a boss and a buckle (12), the support (8) is provided with a groove matching the size of the TR module to be welded, for placing the TR module, the boss is arranged around the support (8), the buckle (12) is fixed on the boss for fixing the connector pressing plate (2), the first fixed plate (9) and the first pressing block (10) are arranged above the support (8), the first pressing block (10) is fixed on the first fixed plate (9) for pressing the components of the TR module placed on the support (8); The connector pressing plate (2) is fixed on the base by rotating the buckle (12) for pressing the connector of the TR module; The top plate (3) is arranged above the base (1) and comprises a first cover plate (18) and a second pressing block (19), the second pressing block (19) is fixed on the first cover plate (18) for pressing the components of the TR module placed on the support (8); The connecting piece (4) is installed on the top plate (3) for connecting the top plate (3) and the base (1), and the positioning pin (5) is installed on the support (8) for aligning the position of the top plate (3) and the base (1); The base (1) further comprises a first pressing needle (6) arranged below the support (8) and a second fixed plate (7), the first pressing needle (6) is connected with the first fixed plate (9) through the second fixed plate (7) and the support (8) for pressing the components of the TR module placed on the support (8); The connector pressing plate (2) comprises a first pressing plate (13), a second pressing plate (14), a second pressing needle (26) and a top column (15), the first pressing plate (13) and the second pressing plate (14) are attached to each other, the second pressing needle (26) is assembled on the first pressing plate (13) and the second pressing plate (14), one end of the top column (15) is assembled on the second pressing needle (26), and the other end is provided with a groove matching the needle core of the connector of the TR module; The top plate (3) further comprises a third pressing needle (27), a second cover plate (16) and a third cover plate (17), the second cover plate (16) is arranged above the third cover plate (17), the third pressing needle (27) is assembled on the second cover plate (16) and the third cover plate (17), and the connecting piece (4) is installed on the second cover plate (16).

2. The tooling of claim 1, wherein, The first fixed plate (9), the first pressing block (10), the first cover plate (18) and the second pressing block (19) match the height of the components of the TR module placed in the groove of the support (8).

3. The tooling of claim 1 or 2, wherein, The base (1) further comprises a guide column (11) fixed on the boss of the support (8) for guiding and positioning the connector pressing plate (2).

4. The tooling of claim 1 or 2, wherein, The connecting piece (4) comprises a first fixed block (20), a second fixed block (22) and a clamping block (23), the first fixed block (20) is provided with a cavity matching the size of the clamping block (23) for mounting the clamping block (23), the second fixed block (22) is connected to the side of the first fixed block (20), the middle position of the upper surface of the first fixed block (20) is provided with a through hole matching the size of the positioning pin (5) for smooth passing of the positioning pin (5).

5. The tooling of claim 4, wherein, The connecting piece (4) further comprises a handle (21) and a spring (24) assembled on the clamping block (23), the upper surface of the first fixed block (20) is provided with a long through slot, which can realize the forward and backward movement of the handle (21), the movement of the handle (21) can realize the extension and contraction of the spring (24) and the movement of the clamping block (23), so as to realize the smooth passing of the positioning pin (5) through the connecting piece (4) and locking.

6. The tooling of claim 4 wherein, One end of the positioning pin (5) is threaded for mounting with the base (1), the other end is tapered for locking the connecting piece (4) in the height direction, and the middle is a light column for assembling with the connecting piece (4), and the clamping block (23) clamps the position of the light column.

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