An integrated welding device and method for double-sided complex T / R components

Abstract

The present invention provides an integrated welding device and method for double-sided complex T / R assemblies, comprising: a supporting base for securing the box assembly; adjustment mechanisms disposed on the upper and lower surfaces of the supporting base, each adjustment mechanism comprising: an adjustment pressure block assembly composed of a plurality of adjustment pressure blocks matching the shape of the welding inserts, the adjustment pressure block assembly being placed above the welding inserts to adjust the height of each welding insert; a support stud having its bottom end fixedly connected to the box assembly; and an adjustable spring pressure plate assembly fixedly connected to the top end of the support stud, controlling a spring pressure pin in the adjustable spring pressure plate assembly to provide a spring preload to the adjustment pressure block assembly, thereby securing the position of the welding insert below the adjustment pressure block assembly to the surface of the box assembly. The present invention has the advantages of simple manufacturing, convenient operation, and high welding quality.

Description

Technical Field

[0001] The present invention belongs to the technical field of microwave component assembly, and in particular relates to an integrated welding device and method for a double-sided complex T / R component. Background Art

[0002] With the increasing demand for operational performance in weaponry, the use of phased array radars has become mainstream. As core components of phased array radars, T / R assemblies (transmitter / receiver modules) are characterized by a wide variety of materials, a wide range of sizes, and complex assembly processes. Missile-borne T / R assemblies, in particular, are constrained by size and weight requirements, requiring higher levels of integration, density, and complexity. A single module can contain more transceiver channels, leading to complex assembly processes. Achieving high-quality welding of these complex T / R assemblies has been a subject of extensive research.

[0003] In the prior art, the assembly of various components in a T / R assembly is primarily accomplished through welding or bonding. Soldering, primarily used for components, RF connectors, and other metal substrates, microstrip circuit boards, and FR4 circuit boards, requires multiple soldering passes using solders with varying temperature gradients. T / R assemblies with numerous channels and complex structures require more soldering passes and a greater variety of solders with varying melting points. However, the selection of commonly used soft solders is limited, creating certain process bottlenecks. Bonding, primarily used for bare chip assembly with less demanding heat dissipation requirements, typically uses conductive adhesives, resulting in a relatively simple process.

[0004] Existing research reports primarily focus on multi-gradient welding processes for T / R assemblies and the study of relatively simple welding fixtures for single-sided T / R assemblies. Research on welding complex double-sided T / R assemblies is relatively rare. The challenge lies in ensuring simultaneous, high-quality welding of components with multiple channels on both sides (A and B) that are not aligned in the same plane. This requires breakthroughs in both welding equipment and process methods. Summary of the Invention

[0005] The purpose of the present invention is to provide an integrated welding device and method for double-sided complex T / R components, which has the advantages of simple manufacturing, convenient operation and high welding quality, and is particularly suitable for the rapid development and production needs of multiple varieties and high reliability.

[0006] To achieve the above-mentioned objectives, the present invention provides an integrated welding device for a double-sided complex T / R assembly, wherein the double-sided complex T / R assembly includes a box body assembly on which a plurality of welding access parts are arranged, and a cover plate groove is arranged at the bottom. The integrated welding device includes: a bearing base for fixing the box body assembly; an adjustment mechanism arranged on the upper and lower surfaces of the bearing base, each of the adjustment mechanisms including: an adjusting pressure block assembly, which is composed of a plurality of adjusting pressure blocks matching the shape of the welding insertion parts, and the adjusting pressure block assembly is placed above the welding insertion parts to adjust the height of each welding insertion part; a support stud, the bottom end of which is fixedly connected to the box body assembly; an adjustable spring pressure plate assembly, which is fixedly connected to the top end of the support stud, controls the spring pressure pin in the adjustable spring pressure plate assembly, and provides a spring preload force to the adjusting pressure block assembly, so that the welding insertion parts below the adjusting pressure block assembly are fixed to the surface position of the box body assembly.

[0007] Preferably, an installation groove is provided on the upper surface of the supporting base, and the installation groove forms a slotted step on the upper surface of the supporting base; the shape and size of the slotted step match the shape and size of the box body assembly; an installation through groove is provided on the lower surface of the supporting base, and the installation through groove is a through-hole slotted structure; the shape and size of the installation through groove match the shape and size of the cover plate slot; the size of the installation groove is 0.1mm~0.2mm larger than the shape and size of the box body assembly; the slotted depth of the installation groove is 0.2mm~0.5mm; the size of the installation through groove is 0.1mm~0.2mm larger than the size of the cover plate slot.

[0008] Preferably, a first threaded hole is provided on the slotted step of the supporting base, and the box body assembly is fixed to the supporting base through the first threaded hole; second threaded holes and third threaded holes are arranged in an array in the length direction and width direction of the supporting base respectively; the second threaded holes are used to install the lower surface support studs, and the third threaded holes are used to install the upper surface support studs; wherein, the center distance between two adjacent second threaded holes ranges from 20mm to 60mm; the center distance between two adjacent third threaded holes ranges from 20mm to 60mm.

[0009] Preferably, the several support studs are all hexagonal studs; each of the support studs includes a support portion, a protrusion extends axially from the bottom end of the support portion, and the top end of the support portion is recessed inwardly along the axial direction to form a recessed portion; the outer surface of the protrusion and the inner surface of the recessed portion are respectively provided with external threads and internal threads, and the support stud is tightened and installed in the third threaded hole on the supporting base through the external threads of the protrusion; the internal threads of the recessed portion are used for tightening and installing the adjustable spring pressure plate assembly.

[0010] Preferably, the plurality of welding components provided on the box assembly include: a first radio frequency transmission microstrip board, a bare chip metal carrier, a printed circuit board assembly and a second radio frequency transmission microstrip board.

[0011] Preferably, the adjustment pressure block assembly includes several adjustment pressure blocks that match the shape of the welding inserts, which are used to adjust the various welding inserts to be in the same plane; the adjustment pressure blocks are respectively a first RF circuit pressure block, which is used to press the first RF transmission microstrip board; an FR4 circuit board assembly pressure block, which is used to press the printed circuit board assembly; a metal carrier pressure block, which is used to press the bare chip metal carrier; and a second RF circuit pressure block, which is used to press the second RF transmission microstrip board.

[0012] Preferably, the first RF circuit pressing block is provided with a U-shaped hollow portion at the position of the RF connector pin core, and the size of the U-shaped hollow portion matches the size of the RF connector pin core raised from the side of the box body assembly; a number of components are installed on the printed circuit board assembly, and an avoidance groove is provided at the position where the components are installed corresponding to the FR4 circuit board assembly pressing block, and the shape and size of the avoidance groove match the shape and size of the installed components; the metal carrier pressing block and the second RF circuit pressing block are integrated into one pressing block using multiple channels, integrating the originally multiple separated metal carrier pressing blocks and integrating the multiple separated second RF circuit pressing blocks.

[0013] Preferably, the adjustable spring pressure plate assembly includes a metal pressure plate and a plurality of pressure-adjustable spring pressure pins; the plurality of pressure-adjustable spring pressure pins are arranged at intervals on the metal pressure plate to provide pressure for adjusting the pressure block assembly.

[0014] Preferably, a fastening through hole is provided on one side of the metal pressure plate, and the position of the fastening through hole matches the position of the third threaded hole on the supporting base, which is used to fasten the adjustable spring pressure plate assembly to the upper surface support stud; a plurality of fourth threaded holes are opened inside the metal pressure plate, and the pressure-adjustable spring pressure pin is fixed to the metal pressure plate through the fourth threaded hole; the opening position and number of the fourth threaded hole of the metal pressure plate should match the position and number of the plurality of adjusting pressure block assemblies on the upper surface of the box body assembly; the top end of the spring pressure pin is provided with a concave hexagonal hole, and the bottom end is provided with a telescopic part; by adjusting the compression amount of the telescopic part at the bottom end of the spring pressure pin, it is ensured that each welded part maintains appropriate pressure during the welding process.

[0015] The present invention also provides an integrated assembly method for a double-sided complex T / R assembly, which is implemented using the above-mentioned integrated welding device for a double-sided complex T / R assembly, wherein the upper surface of the box assembly is surface A and the lower surface is surface B, and comprises the following steps:

[0016] S1. Fasten the box assembly to the A surface of the supporting base with screws;

[0017] S2. Install the A-side welding inserts of the box assembly, including several A-side RF transmission microstrip boards, several A-side bare chip metal carriers, and A-side printed circuit board assemblies, with welding material placed between the welding inserts and the A-side of the box assembly;

[0018] S3. Install several adjusting and pressing block assemblies on the A surface, and place the adjusting and pressing block assemblies centrally above the welding insert;

[0019] S4. Install the support studs on the A side of the bearing base and the adjustable spring pressure plate assembly on the A side. Adjust the position of the spring pressure pin in the adjustable spring pressure plate assembly on the A side to ensure that the adjustment pressure block assembly is evenly pressed.

[0020] S5. Install the B-side welding inserts of the box assembly, including several B-side RF transmission microstrip boards, several B-side bare chip metal carriers, and a B-side printed circuit board assembly. Place welding material between the welding inserts and the B-side of the box assembly.

[0021] S6. Install several adjusting and pressing block assemblies on the B side, and place the adjusting and pressing block assemblies centrally above the welding insert;

[0022] S7. Install the support studs on the B side of the bearing base and the B side adjustable spring pressure plate assembly. Adjust the position of the spring pressure pin in the B side adjustable spring pressure plate assembly to ensure that the adjustment pressure block assembly is evenly pressed.

[0023] S8. Place the installed welding device in the welding equipment for welding;

[0024] The welding material may be SnPb or SnPbAg eutectic alloy; the welding material may be in the form of solder paste or a solder sheet pre-coated with flux; and the welding method is vacuum vapor phase welding.

[0025] In summary, compared with the prior art, the integrated welding device and method for double-sided complex T / R components provided by the present invention have the following beneficial effects:

[0026] 1. The integrated welding device is used to achieve one-time assembly of double-sided complex T / R assembly weldments. By adjusting the shape and height of the pressure block, the complex weldments in the T / R assembly can be adjusted to a similar height. The spring pressure pin of the adjustable spring pressure plate assembly can provide continuous and uniform welding preload for each weldment to ensure welding quality.

[0027] 2. By adopting vacuum vapor phase welding and hollowing out the welding device, sufficient welding heat capacity can be ensured during the welding process of double-sided T / R components, achieving high-quality welding of double-sided complex T / R components;

[0028] 3. The use of an integrated welding device and assembly method can achieve one-time welding of multiple installed parts of double-sided complex multi-channel T / R components, greatly reducing the welding difficulty and ensuring the welding quality. It is especially suitable for the rapid development and production needs of multiple varieties and high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic cross-sectional view of a double-sided complex T / R assembly provided by one embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the assembly of an integrated welding device provided by one embodiment of the present invention;

[0031] Figure 3 A schematic diagram of a T / R assembly bearing base and supporting studs provided in one embodiment of the present invention;

[0032] Figure 4 A schematic diagram of a briquetting assembly provided in one embodiment of the present invention;

[0033] Figure 5 A schematic diagram of an adjustable spring pressure plate assembly provided in one embodiment of the present invention;

[0034] Figure 6 A flowchart of the assembly process for a double-sided complex T / R component provided by one embodiment of the present invention. DETAILED DESCRIPTION

[0035] The following will be combined with the appended Figure 1 ~Attachment Figure 6 , the technical solutions, structural features, objectives achieved and effects in the embodiments of the present invention are described in detail.

[0036] It should be noted that the drawings are in a very simplified form and use non-precise proportions. They are only used to conveniently and clearly assist in explaining the embodiments of the present invention, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0037] It should be noted that, in the present invention, relational terms such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only the elements explicitly listed, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] In view of the shortcomings of the existing technology in the welding devices and methods for multi-channel, double-sided complex T / R components, the present invention provides an integrated welding device and method for double-sided complex T / R components to reduce the difficulty of product welding and improve the welding quality of products, while meeting the needs of rapid and high-quality development and production of multi-variety and complex T / R component products.

[0039] For the convenience of describing this embodiment, the cross-sectional view of the typical double-sided complex T / R assembly is shown as follows: Figure 1 As shown, it comprises: a box body assembly Z1, the box body assembly Z1 includes a box body Z11 formed by integrally connecting a first box body portion Z101, a second box body portion Z102, a third box body portion Z103, a fourth box body portion Z104 and a fifth box body portion Z105; and a radio frequency connector Z12 welded to the first box body portion Z101; in this embodiment, the upper surface of the box body Z11 is surface A, and the lower surface is surface B, and a cover plate groove Z14 is further provided on the A and B surfaces of the box body Z11 for covering the upper and lower surfaces of the box body Z11; further, a plurality of welding holes are respectively provided on the A and B surfaces of the box body Z11. Connecting parts, specifically, a number of A-side first RF transmission microstrip boards Z2 and a number of B-side first RF transmission microstrip boards Z5 are respectively provided on the A-side and B-side of the second box body Z102; a number of A-side bare chip metal carriers Z3 and a number of B-side bare chip metal carriers Z6 are respectively provided on the A-side and B-side of the third box body Z103; an A-side printed circuit board assembly Z4 and a B-side printed circuit board assembly Z7 are respectively provided on the A-side and B-side of the fourth box body Z104; an A-side second RF transmission microstrip board Z8 and a B-side second RF transmission microstrip board Z9 are respectively provided on the A-side and B-side of the fifth box body Z105. In this embodiment, the box body Z11 and the RF connector Z12 in the box body assembly Z1 are connected using solder Z13 with a melting point of 217°C; the components on the A-side printed circuit board assembly Z4 and the B-side printed circuit board assembly Z7 are also assembled using solder with a melting point of 217°C; the number of welding channels of this typical double-sided complex T / R assembly is ≥36 channels.

[0040] In order to realize the integrated welding of the above-mentioned double-sided complex T / R components, this embodiment provides an integrated welding device suitable for double-sided complex T / R components, such as Figure 2 As shown, it includes: a supporting base 1 for fixing the box body assembly Z1; an adjusting mechanism arranged on the upper and lower surfaces of the supporting base 1, each of the adjusting mechanisms including: an adjusting pressure block assembly, which is composed of a plurality of adjusting pressure blocks matching the shape of the welding insert, and the adjusting pressure block assembly is placed above the welding insert to adjust the height of each welding insert; a supporting stud, the bottom end of which is fixedly connected to the box body assembly Z1; an adjustable spring pressure plate assembly, which is fixedly connected to the top end of the supporting stud, controls the spring pressure pin in the adjustable spring pressure plate assembly, and provides spring preload force to the adjusting pressure block assembly, so that the welding insert below the adjusting pressure block assembly is fixed to the surface position of the box body assembly Z1.

[0041] Specifically, Figure 2 This is an assembly diagram of the integrated welding device for double-sided complex T / R components described in this embodiment, which includes: a supporting base 1 for fixedly installing the box body assembly Z1; a first adjustment mechanism 200 arranged on the upper surface of the supporting base 1 (i.e., the A side of the box body assembly Z1), the first adjustment mechanism 200 including the A side adjustment pressure block assembly 201, the A side support stud 202 and the A side adjustable spring pressure plate assembly 203; and a second adjustment mechanism 300 arranged on the lower surface of the supporting base 1 (i.e., the B side of the box body assembly Z1), the second adjustment mechanism 300 including the B side adjustment pressure block assembly 301, the B side support stud 302 and the B side adjustable spring pressure plate assembly 303.

[0042] Among them, Figure 3The figure shows a schematic diagram of the T / R assembly supporting base 1 and the A-side supporting studs 202 and the B-side supporting studs 302 described in this embodiment. A mounting groove is provided on the upper surface (i.e., the A-side) of the supporting base 1. The mounting groove forms a slotted step 101 on the upper surface of the supporting base 1. The shape and size of the slotted step 101 match the shape and size of the box assembly Z1. When the box assembly Z1 is installed on the supporting base 1, the edge of the box assembly Z1 is exactly stuck in the slotted step 101. Preferably, the size of the mounting groove is 0.1mm to 0.2mm larger than the shape and size of the box assembly Z1. The slotted step 101 has a depth of 0.2mm to 0.5mm. Furthermore, a mounting groove is provided on the lower surface (i.e., the B surface) of the supporting base 1, and the mounting groove is a through-hole type slot structure, i.e., the mounting groove extends from the B surface to the A surface of the supporting base 1; the shape and size of the mounting groove match the shape and size of the cover groove Z14; preferably, the size of the mounting groove is 0.1mm to 0.2mm larger than the size of the cover groove Z14, which makes installation more convenient and effectively prevents the cover groove Z14 from being unable to be installed on the supporting base 1.

[0043] Among them, Figure 3 As shown, a first threaded hole 102 is provided on the slotted step 101 of the supporting base 1, and the box body assembly Z1 is fixed on the supporting base 1 through the first threaded hole 102; the position and size of the first threaded hole 102 match the opening position of the box body assembly Z1.

[0044] Further, if Figure 3 As shown, the bearing base 1 is arrayed with second threaded holes 103 and third threaded holes 104 along its length and width, respectively. The second threaded holes 103 are used to mount the B-side support studs 302, while the third threaded holes 104 are used to mount the A-side support studs 202. The positions of the second threaded holes 103 and third threaded holes 104 on the bearing base 1 correspond to the positions of the fastening through-holes of the adjustable spring pressure plate assemblies on the A-side and B-side surfaces, respectively. Preferably, the center-to-center distance between two adjacent second threaded holes 103 ranges from 20mm to 60mm; similarly, the center-to-center distance between two adjacent third threaded holes 104 ranges from 20mm to 60mm.

[0045] Among them, Figure 3As shown, the A-side support studs 202 and the B-side support studs 302 are all hexagonal studs. Taking the A-side support studs 202 as an example, the support studs 202 include a support portion 221, the bottom end of which axially extends a protrusion 222, and the top end of the support portion 221 is axially recessed to form a recess 223. The outer surface of the protrusion 222 and the inner surface of the recess 223 are respectively provided with external threads and internal threads. The A-side support studs 202 are tightened and installed in the third threaded holes 104 on the supporting base 1 via the external threads of the protrusion 222; the internal threads of the recess 223 are used to tighten and install the A-side adjustable spring pressure plate assembly 203. The structure of the B-side support studs 302 is the same as that of the A-side support studs 202 and will not be repeated here. Preferably, in this embodiment, according to the characteristics of the welding insert corresponding to the box assembly Z1, the height of the supporting portion 221 of the A-side supporting stud 202 is 15 mm; the height of the supporting portion of the B-side supporting stud 302 is 5 mm.

[0046] Furthermore, to ensure that the welded components of the box assembly Z1 are on similar height planes, an adjusting pressure block assembly is installed between each welded component and the adjustable spring pressure plate assembly so that the plane height difference of each welded component is controlled within 1.5 mm.

[0047] Specifically, such as Figure 4 As shown, it is a schematic diagram of a part of the regulating block assembly described in this embodiment. Since the structure of the A-side regulating block assembly 201 is similar to that of the B-side regulating block assembly 301, the A-side regulating block assembly 201 is taken as an example in this embodiment. The A-side regulating block assembly 201 includes several regulating blocks that match the shape of the welding insert, specifically including the A-side first RF circuit block 211 (pressed on several first RF transmission microstrip boards Z2), the FR4 circuit board assembly block 212 (pressed on the A-side printed circuit board assembly Z4), the metal carrier block 213 (pressed on the A-side bare chip metal carrier Z3), and the second RF circuit block 214 (pressed on the second RF transmission microstrip board Z8).

[0048] The dimensions of the first RF circuit pressing block 211 on the A side match those of the first RF transmission microstrip plate Z2, and a "U-shaped" hollowing process is performed at the pin core position of the RF connector Z12 (e.g. Figure 4 As shown in the figure, a U-shaped hollow portion 2111 is formed, the size of which matches the size of the pin core of the RF connector Z12 rising from the side of the box body assembly Z1, ensuring that the first RF circuit pressing block 211 on the A side does not interfere with the pin core of the RF connector Z12 during assembly.

[0049] Among them, the outer dimensions of the FR4 circuit board assembly block 212 match the outer dimensions of the FR4 circuit board (i.e., the A-side printed circuit board assembly Z4) and the outer dimensions of the box body assembly Z1; a number of components are installed on the FR4 circuit board. In order to prevent the FR4 circuit board assembly block 212 from pressing the components, an avoidance groove 2121 is opened at the position of the FR4 circuit board assembly block 212 corresponding to the position where the components are installed. The shape and size of the avoidance groove 2121 match the outer dimensions of the installed components; preferably, the slot size of the avoidance groove 2121 is 0.3mm~0.5mm larger than the installation silk screen frame of the component to ensure that the soldered components are not damaged during the installation of the FR4 circuit board assembly block 212.

[0050] In this embodiment, the metal carrier pressing block 213 and the second RF circuit pressing block 214 are designed to integrate multiple channels into a single pressing block. Specifically, multiple previously separate metal carrier pressing blocks 213 are connected as a whole, and multiple previously separate second RF circuit pressing blocks 214 are similarly connected as a whole, forming a structure containing multiple channels within a single pressing block. The metal carrier pressing block 213 is used to press the bare chip metal carrier Z3 on the A-side, and the second RF circuit pressing block 214 is used to press the second RF transmission microstrip plate Z8 on the A-side. In this embodiment, each metal carrier pressing block 213 and second RF circuit pressing block 214 corresponds to four channels. In existing designs, each of the four channels corresponds to one metal carrier pressing block 213 and one second RF circuit pressing block, for a total of eight pressing blocks. This design, which connects the previously separate metal carrier pressing blocks and the second RF circuit pressing blocks into a single unit, not only reduces the number of pressing blocks but also increases their size, making alignment easier. This facilitates uniform pressure loading on the spring pressure pins 232 and ensures the quality of the welds.

[0051] like Figure 5 Figure 2 is a schematic diagram of the adjustable spring pressure plate assembly described in this embodiment. Since the A-side adjustable spring pressure plate assembly 203 and the B-side adjustable spring pressure plate assembly 303 have similar structures, this embodiment uses the A-side adjustable spring pressure plate assembly 203 to illustrate its structure and function. The A-side adjustable spring pressure plate assembly 203 includes an A-side metal pressure plate 231 and a plurality of pressure-adjustable spring pressure pins 232. The plurality of pressure-adjustable spring pressure pins 232 are spaced apart on the A-side metal pressure plate 231 to provide pressure for the adjustable pressure block assembly.

[0052] Furthermore, a fastening through hole 2311 is provided on one side of the A-side metal pressing plate 231, and the position of the fastening through hole 2311 matches the position of the third threaded hole 104 on the bearing base 1 (ie, Figure 3The third threaded hole 104 in the width direction of the middle bearing base 1 is used to fasten the A-side adjustable spring pressure plate assembly 203 to the A-side support stud 202. The A-side metal pressure plate 231 has a plurality of fourth threaded holes 2312 formed therein, through which the pressure-adjustable spring pressure pin 232 is secured to the A-side metal pressure plate 231. The location and number of the fourth threaded holes 2312 in the A-side metal pressure plate 231 should match the location and number of the plurality of adjustable pressure block assemblies on the A-side of the box assembly Z1.

[0053] Among them, the top of the spring pressure pin 232 is provided with a concave hexagonal hole 2321, and the bottom is provided with a telescopic part 2322; by using a hexagonal tool to reach into the concave hexagonal hole 2321 at the top of the spring pressure pin 232 to adjust the compression amount of the telescopic part 2322 at the bottom end of the spring pressure pin 232, and observing the compression amount of the bottom end 2322 of the spring pressure pin, it is ensured that each welding part maintains appropriate pressure during the welding process.

[0054] Based on the above-mentioned integrated welding device for a double-sided complex T / R assembly, this embodiment also provides an integrated assembly method for a double-sided complex T / R assembly, such as Figure 6 FIG. 1 is a flowchart of a double-sided complex T / R assembly process provided in this embodiment, including the following steps:

[0055] S1. Fasten the box assembly Z1 to the A surface (i.e., the upper surface) of the supporting base 1 with screws;

[0056] S2. Install the A-side welding inserts of the box assembly Z1, which specifically include several A-side RF transmission microstrip boards Z2, several A-side bare chip metal carriers Z3, A-side printed circuit board assemblies Z4, and several A-side second RF transmission microstrip boards Z8. Place welding material between the A-side welding inserts and the upper surface of the box assembly Z1;

[0057] S3, installing several adjusting pressing block assemblies 201 on surface A;

[0058] S4. Install the support studs 202 on the A side of the bearing base and the adjustable spring pressure plate assembly 203 on the A side. Specifically, first install multiple A side support studs 202 (three in this embodiment) into the corresponding third threaded holes 104 of the bearing base 1, and then fasten the A side adjustable spring pressure plate assembly 203 into the recessed portions 223 of the A side support studs 202.

[0059] S5. Install the B-side welding inserts of the box assembly Z1, which specifically include several B-side RF transmission microstrip boards Z5, several B-side bare chip metal carriers Z6, a B-side printed circuit board assembly Z7, and several B-side second RF transmission microstrip boards Z9. Place welding material between the B-side welding inserts and the lower surface of the box assembly Z1.

[0060] S6. Install several adjusting block assemblies 301 on the B side;

[0061] S7. Install the B-side support studs 302 and the B-side adjustable spring pressure plate assembly 303 of the bearing base. Specifically, first install multiple B-side support studs 302 (two in this embodiment) into the corresponding second threaded holes 103 of the bearing base 1, and then fasten the B-side adjustable spring pressure plate assembly 303 into the recessed portion of the B-side support studs 302.

[0062] S8. Place the installed welding device in the welding equipment for welding.

[0063] In step S3 and step S6, the regulating pressing block assembly is placed centrally above the welding insert, and filter paper with matching outer dimensions is placed between the regulating pressing block assembly and the welding insert.

[0064] Furthermore, after the adjustable spring pressure plate assembly described in step S4 and step S7 is installed, the position of the spring pressure pin 232 is adjusted, and the compression amount of the telescopic part 2322 at the bottom end of the spring pressure pin 232 is adjusted to 1 / 3 to 1 / 2 of the initial spring pressure pin height.

[0065] Preferably, the solder material is a 0.05 mm thick Sn63Pb37 solder sheet, whose shape and dimensions match those of the component being welded. The sheet is pre-coated with flux to improve welding efficiency. The welding equipment is vacuum vapor phase welding equipment, and the peak welding temperature is 205°C to 210°C.

[0066] In summary, compared with the existing T / R component welding method, by adopting the integrated welding device disclosed in the present invention, which includes a bearing base, an adjusting pressure block assembly, and an adjustable spring pressure plate assembly, it is possible to achieve one-time welding of double-sided, complex, and multi-channel T / R components, reducing the T / R component's demand for materials with different temperature gradients and reducing the difficulty of welding; by adopting a vacuum vapor phase welding method for welding components, it is possible to ensure the welding heat capacity requirement of the box body component, and achieve integrated, high-quality welding of double-sided complex T / R components, which is particularly suitable for the rapid development and production needs of multiple varieties and high reliability.

[0067] In the description of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or connections through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0068] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0069] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description is not intended to limit the present invention. After reading the above description, various modifications and substitutions of the present invention will become apparent to those skilled in the art. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. An integrated welding device for a double-sided complex T / R assembly, the double-sided complex T / R assembly comprising a box assembly, a plurality of welding inserts being arranged on the upper portion, and a cover plate slot being arranged at the lower portion, characterized in that: include: A bearing base, used for fixing the box assembly; Adjustment mechanisms are provided on the upper and lower surfaces of the support base, each of the adjustment mechanisms comprising: An adjusting pressure block assembly, which is composed of a plurality of adjusting pressure blocks that match the shapes of the welding inserts, and the adjusting pressure block assembly is placed above the welding inserts to adjust the height of each welding insert; a supporting stud, the bottom end of which is fixedly connected to the box assembly; The adjustable spring pressure plate assembly is fixedly connected to the top end of the support stud, controls the spring pressure pin in the adjustable spring pressure plate assembly, provides spring preload force to the adjusting pressure block assembly, and fixes the welding assembly below the adjusting pressure block assembly and the surface position of the box body assembly.

2. The integrated welding device for double-sided complex T / R components according to claim 1, characterized in that: The upper surface of the supporting base is provided with a mounting groove, and the mounting groove forms a slotted step on the upper surface of the supporting base; the shape and size of the slotted step match the shape and size of the box assembly; The lower surface of the bearing base is provided with a mounting groove, and the mounting groove is a through-hole type slot structure; The shape and size of the mounting groove match the shape and size of the cover groove; the size of the mounting groove is 0.1mm~0.2mm larger than the shape and size of the box body assembly; the groove depth of the mounting groove is 0.2mm~0.5mm; the size of the mounting groove is 0.1mm~0.2mm larger than the size of the cover groove.

3. The integrated welding device for double-sided complex T / R components according to claim 1, characterized in that: A first threaded hole is provided on the slotted step of the bearing base, and the box assembly is fixed to the bearing base through the first threaded hole; The bearing base is provided with a second threaded hole and a third threaded hole in an array in the length direction and the width direction respectively; the second threaded hole is used to install the lower surface support stud, and the third threaded hole is used to install the upper surface support stud; The center distance between two adjacent second threaded holes ranges from 20 mm to 60 mm; the center distance between two adjacent third threaded holes ranges from 20 mm to 60 mm.

4. The integrated welding device for double-sided complex T / R components according to claim 3, characterized in that: The several support studs are all hexagonal studs; each of the support studs includes a support portion, a protrusion extending axially from the bottom end of the support portion, and a recessed portion recessed inwardly along the axial direction at the top end of the support portion; an outer surface of the protrusion and an inner surface of the recessed portion are respectively provided with an external thread and an internal thread, and the support stud is tightened and installed in the third threaded hole on the supporting base through the external thread of the protrusion; the internal thread of the recessed portion is used for tightening and installing the adjustable spring pressure plate assembly.

5. The integrated welding device for double-sided complex T / R components according to claim 1, characterized in that: The plurality of welding components arranged on the box body assembly include: a first radio frequency transmission microstrip board, a bare chip metal carrier, a printed circuit board assembly and a second radio frequency transmission microstrip board.

6. The integrated welding device for double-sided complex T / R components according to claim 5, characterized in that: The adjustment pressure block assembly includes several adjustment pressure blocks that match the shape of the welding insertion parts, which are used to adjust the various welding insertion parts to be in the same plane; the adjustment pressure blocks are respectively a first RF circuit pressure block, which is used to press the first RF transmission microstrip board; an FR4 circuit board assembly pressure block, which is used to press the printed circuit board assembly; a metal carrier pressure block, which is used to press the bare chip metal carrier; and a second RF circuit pressure block, which is used to press the second RF transmission microstrip board.

7. The integrated welding device for double-sided complex T / R components according to claim 6, characterized in that: The first RF circuit pressing block is provided with a U-shaped hollow portion at the position of the RF connector pin core, and the size of the U-shaped hollow portion matches the size of the RF connector pin core protruding from the side of the box assembly; A number of components are mounted on the printed circuit board assembly, and an avoidance groove is provided at the position of the FR4 circuit board assembly pressing block corresponding to the position where the components are mounted, and the shape and size of the avoidance groove match the shape and size of the mounted components; The metal carrier pressing block and the second RF circuit pressing block are integrated into one pressing block using multiple channels, thereby integrating a plurality of originally separate metal carrier pressing blocks and integrating a plurality of originally separate second RF circuit pressing blocks.

8. The integrated welding device for double-sided complex T / R components according to claim 1, characterized in that: The adjustable spring pressure plate assembly includes a metal pressure plate and a plurality of pressure-adjustable spring pressure pins; the plurality of pressure-adjustable spring pressure pins are arranged at intervals on the metal pressure plate to provide pressure for adjusting the pressure block assembly.

9. The integrated welding device for double-sided complex T / R components according to claim 8, characterized in that: A fastening through hole is provided on one side of the metal pressure plate, the position of which matches the position of the third threaded hole on the bearing base, and is used to fasten the adjustable spring pressure plate assembly to the upper surface support stud; The metal pressure plate is provided with a plurality of fourth threaded holes inside, and the pressure-adjustable spring pressure pin is fixed to the metal pressure plate through the fourth threaded holes; the opening position and number of the fourth threaded holes of the metal pressure plate should match the position and number of the plurality of adjustment pressure block assemblies on the upper surface of the box body assembly; The top of the spring pressure pin is provided with a concave hexagonal hole, and the bottom is provided with a telescopic part; by adjusting the compression amount of the telescopic part at the bottom of the spring pressure pin, it is ensured that each welding part maintains appropriate pressure during the welding process.

10. A method for integrated assembly of a double-sided complex T / R assembly, implemented using the integrated welding device for a double-sided complex T / R assembly according to any one of claims 1 to 9, wherein the upper surface of the box assembly is surface A and the lower surface is surface B, and wherein: The steps include: S1. Fasten the box assembly to the A surface of the supporting base with screws; S2. Install the A-side welding inserts of the box assembly, including several A-side RF transmission microstrip boards, several A-side bare chip metal carriers, and A-side printed circuit board assemblies, with welding material placed between the welding inserts and the A-side of the box assembly; S3. Install several adjusting and pressing block assemblies on the A surface, and place the adjusting and pressing block assemblies centrally above the welding insert; S4. Install the support studs on the A side of the bearing base and the adjustable spring pressure plate assembly on the A side. Adjust the position of the spring pressure pin in the adjustable spring pressure plate assembly on the A side to ensure that the adjustment pressure block assembly is evenly pressed. S5. Install the B-side welding inserts of the box assembly, including several B-side RF transmission microstrip boards, several B-side bare chip metal carriers, and a B-side printed circuit board assembly. Place welding material between the welding inserts and the B-side of the box assembly. S6. Install several adjusting and pressing block assemblies on the B side, and place the adjusting and pressing block assemblies centrally above the welding insert; S7. Install the support studs on the B side of the bearing base and the B side adjustable spring pressure plate assembly. Adjust the position of the spring pressure pin in the B side adjustable spring pressure plate assembly to ensure that the adjustment pressure block assembly is evenly pressed. S8. Place the installed welding device in the welding equipment for welding; Wherein, the welding material is SnPb or SnPbAg eutectic alloy; the welding material is in the form of solder paste or solder sheet pre-coated with flux; and the welding method is vacuum vapor phase welding.

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