Micro-strip circulator welding tool easy to assemble

Abstract

The utility model discloses a microstrip circulator welding tool easy to assemble, which comprises a base, an upper cover plate and a pressing block plate which are sequentially arranged from bottom to top, the base is provided with a plurality of circulator grooves which are distributed in a matrix mode, the upper cover plate is provided with rectangular hole grooves which are the same as the circulator grooves in size, number and distribution, and the pressing block plate is arranged on the upper cover plate. The pressing block plate is provided with pressing blocks which are the same as circulator grooves in size, number and distribution, the four corners of the base, the four corners of the upper cover plate and the four corners of the pressing block plate are provided with pin holes which coincide in position, and the base, the upper cover plate and the pressing block plate are fixedly connected through matching of pins and the pin holes. The assembling process, the number of parts and operation steps are simplified, the weight of the tool is light, heat dissipation is even and rapid, the batch welding efficiency of circulators is improved, and the welding precision and quality of products are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the part welding assembly link in the microwave communication field, especially to an easy-to-assemble microstrip circulator welding tool. BACKGROUND

[0002] With the mature application and the ever-changing technology of microwave technology, in order to comply with the mainstream call of science and technology, the whole microwave electronic system faces the present situation of many projects, large production demand, high assembly precision, high quality level of microwave components, and it is imperative to improve the welding technology and optimize the design of high reliability tool. The welding procedure is the key process of electronic equipment manufacturing, which belongs to a kind of connection technology. At present, the batch welding time is long, the heat conduction is uneven, the flux cannot be easily discharged, the welding quality is uneven, the investment cost is high, the designed microstrip circulator welding tool of the application can shorten the production cycle and improve the work efficiency; the welding size is accurate, and has the advantages of high and stable welding quality. SUMMARY

[0003] The utility model discloses a microstrip circulator welding tool which is easy to assemble, and has the advantages of simple assembly process, few parts, light tool weight, uniform and rapid heat dissipation, improved batch welding efficiency of circulators, improved product welding precision and quality.

[0004] In order to achieve the above object, the utility model adopts the following technical scheme:

[0005] A microstrip circulator welding tool which is easy to assemble, comprising a base, an upper cover plate and a pressing plate arranged in sequence from bottom to top, wherein the base is provided with a plurality of circulator grooves arranged in matrix, the upper cover plate is provided with rectangular holes with the same size and number as the circulator grooves and arranged in the same way, and the pressing plate is provided with pressing blocks with the same size and number as the circulator grooves and arranged in the same way, the base, the upper cover plate and the pressing plate are all provided with pin holes at their four corners, and the three are fixedly connected through the cooperation of the pins and the pin holes.

[0006] The utility model further limits the technical scheme:

[0007] Further, each circulator groove is provided with a circular through hole at the bottom.

[0008] Further, the four corners of the circulator grooves and the rectangular holes are designed with R chamfers, and the size is 1-2 degrees.

[0009] Further, thin heat conduction band grooves are arranged between two adjacent ring cavity grooves, and four edges of the upper end surface of the base are provided with the same number of thin heat conduction band grooves as the ring cavity grooves on the outer side.

[0010] Further, high-temperature adhesive tape is arranged at the bottom of each pressing block, and the high-temperature adhesive tape is Teflon high-temperature adhesive tape.

[0011] Further, a heat dissipation plate is arranged at the bottom of the base, and a plurality of heat dissipation grooves are arranged transversely at the bottom of the heat dissipation plate.

[0012] Further, the pressing block plate and the pressing block are integrally formed, and the materials are stainless steel.

[0013] Further, the length of the pin is higher than the thickness of the assembled tool base, upper cover plate and pressing block plate, and the material of the pin is the same as that of the base and the upper cover plate, and is aluminum alloy.

[0014] Compared with the prior art, the technical scheme of the utility model has the advantages that:

[0015] 1. The utility model has the advantages of simple assembly process, part quantity and operation steps, light tool weight, uniform and rapid heat dissipation, improved batch welding efficiency of the ring cavity, improved product welding precision and quality, stable process, saved labor and material costs and the like.

[0016] 2. In the utility model, a circular through hole is arranged at the bottom of each ring cavity groove, the heating rate of the tool base is improved, the solder is fully melted, and the welding quality is improved; R chamfer design is adopted at the four corners of each ring cavity groove, the friction and scratches between the workpiece and the tool are reduced, the parts are placed conveniently, and the efficiency is improved; thin heat conduction band grooves are arranged between two adjacent ring cavity grooves, and four edges of the upper end surface of the base are provided with the same number of thin heat conduction band grooves as the ring cavity grooves on the outer side, the thin heat conduction band grooves can accelerate the discharge of the pre-coated flux during welding, and the heat is uniformly and timely dissipated, the bubbles are discharged in time, and the welding quality is improved; high-temperature adhesive tape is arranged at the bottom of each pressing block, and the high-temperature adhesive tape is Teflon high-temperature adhesive tape. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is a structure schematic view of the base in the utility model;

[0019] Figure 3 It is a structure schematic view of the upper cover plate in the utility model;

[0020] Figure 4 It is a structure schematic view of the pressing block plate in the utility model;

[0021] Figure 5 It is a structure schematic view of the heat dissipation plate in the utility model;

[0022] Figure 6 It is an overall structure exploded schematic view. DETAILED DESCRIPTION EMBODIMENT

[0023] In order to make the utility model more clearly, the utility model of a kind of ultra-wideband multiple nested double-section microstrip circulator is further described below, the specific embodiments described herein are only used to explain the utility model, and not used to limit the utility model.

[0024] Referring to Figures 1-6 An easily-assembled microstrip circulator welding tool, comprising, from bottom to top, a base 1, an upper cover plate 2 and a pressing block plate 3, the base is provided with a plurality of circulator grooves 5 arranged in a matrix, each circulator groove is provided with a circular through hole 6 at the bottom, which can improve the heating rate of the bottom of the tool, fully melt the solder and help improve the welding quality; each circulator groove is designed with R chamfer 15 at four corners, which can reduce the friction and scratches between the workpiece and the tool, facilitate the placement of parts and improve efficiency;

[0025] A thin heat-conducting strip groove 8 is arranged between the two adjacent circulator grooves, and four edges of the upper end surface of the base are provided with the same number of thin heat-conducting strip grooves 9 as the circulator grooves on the outside, which can accelerate the discharge of pre-coated flux during welding and uniformly and timely discharge bubbles to improve the welding quality;

[0026] The upper cover plate is provided with rectangular holes 10 with the same size and number as the circulator grooves, and the same distribution, and each rectangular hole is designed with chamfer at four corners;

[0027] The pressing block plate 3 is provided with pressing blocks 11 with the same size and number as the circulator grooves and the same distribution, and the pressing block plate and the pressing block are integrally formed and made of stainless steel, and high-temperature adhesive tape 12 is arranged at the bottom of each pressing block, which can protect the surface gold layer of the circulator circuit, the high-temperature adhesive tape is Teflon high-temperature adhesive tape, which can withstand a temperature of 260-300℃;

[0028] The base, the upper cover plate and the pressing block plate are provided with pin holes 4 at four corners, the pressing blocks on the pressing block plate correspond to the rectangular holes on the upper cover plate, are vertically placed into the corresponding circulator grooves and are tightly attached to the upper surface of the microstrip circuit in the circulator groove;

[0029] The base, the upper cover plate and the pressing block plate are fixedly connected through the cooperation of the pin 16 and the pin hole, the size of the pin hole and the pin is accurately matched, the assembling process is quick and convenient, the length of the pin is higher than the thickness of the base, the upper cover plate and the pressing block plate after assembling, the material of the pin is consistent with the material of the base and the upper cover plate, and they are all aluminum alloy, the thermal expansion coefficients are same, and abnormal deformation can be reduced;

[0030] The four corners of the base, the upper cover plate and the pressing block plate are designed as inverted R chamfers, and the design can slow down the vibration of external stress on the tooling, and reduce the appearance damage caused by the displacement of parts;

[0031] A heat dissipation plate 13 is arranged at the bottom of the base, a plurality of heat dissipation grooves 14 are horizontally arranged at the bottom of the heat dissipation plate, the distance between two adjacent heat dissipation grooves is 9mm, and the groove depth is 9mm.

[0032] The number of assembled parts is reduced, the three-layer plate connection is uniformly connected by the pin, the assembly is convenient, the welding tooling is designed in three layers, the workpiece is uniformly stressed, the heat dissipation groove in the base can accelerate the discharge of the flux, and the penetration rate is improved;

[0033] The materials of the base and the upper cover plate are same, the thermal deformation factor is reduced, the pressing block is made of stainless steel material and presses the surface of the circulator substrate, the size of the pressing block is consistent with the groove of the circulator, the bottom surface of the pressing block is attached to the high-temperature adhesive tape, the adhesive tape covers the contact surface of the pressing block, and the contact surface of the workpiece to be welded; the pressing block with the high-temperature adhesive tape is vertically placed on the upper surface of the microstrip circuit in the groove of the circulator, and the pressing block cannot be warped when placed and must be tightly attached to the surface of the circuit.

[0034] The base is provided with a heat dissipation plate at the bottom, the heat dissipation plate is used for uniform heat dissipation after welding, has excellent heat dissipation, can save heat dissipation time after batch welding, and uniformly cools to enter the next link

[0035] The embodiment is suitable for vacuum furnace welding and welding platform welding process, and uniform heat dissipation is achieved through the heat dissipation plate, the base can be selected as a glue type or a welding fixed type during the installation of the whole machine, the welding tooling is easy to assemble, the parts are simple, the exhaust is fast, the heat dissipation is uniform, and the welding reliability is high.

[0036] In addition to the above embodiments, the utility model can also have other implementation manners. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope required by the utility model.

Claims

1. A welding fixture for an easily assembled microstrip circulator, comprising a base, an upper cover plate, and a pressure plate arranged sequentially from bottom to top, characterized in that: The base is provided with a number of circulator grooves arranged in a matrix. The upper cover plate is provided with rectangular slots of the same size and number as the circulator grooves and in the same distribution. The pressure block plate is provided with pressure blocks of the same size and number as the circulator grooves and in the same distribution. The four corners of the base, the upper cover plate and the pressure block plate are provided with pin holes that overlap in position, and the three are fixedly connected by the cooperation of pins and pin holes.

2. The easily assembled microstrip circulator welding fixture according to claim 1, characterized in that: Each of the circulator grooves has a circular through hole at its bottom.

3. The easily assembled microstrip circulator welding fixture according to claim 1, characterized in that: The four corners of the circulator groove and the rectangular slot are all designed with R-shaped chamfers.

4. The easily assembled microstrip circulator welding fixture according to claim 1, characterized in that: A thin heat-conducting groove is provided between two adjacent circulator grooves, and the four sides of the upper surface of the base are provided with the same number of thin heat-conducting grooves as the outer circulator grooves.

5. The easily assembled microstrip circulator welding fixture according to claim 1, characterized in that: Each of the pressure blocks is provided with a high-temperature tape at the bottom, which is a Teflon high-temperature tape.

6. The easily assembled microstrip circulator welding fixture according to claim 1, characterized in that: A heat dissipation plate is provided at the bottom of the base, and multiple heat dissipation grooves are arranged horizontally at the bottom of the heat dissipation plate.

7. The easily assembled microstrip circulator welding fixture according to claim 1, characterized in that: The pressing plate and the pressing block are integrally formed and are both made of stainless steel.

8. The easily assembled microstrip circulator welding fixture according to claim 7, characterized in that: The length of the pin is greater than the thickness of the assembled tooling base, top cover plate and pressure plate, and the pin material is the same as that of the base and top cover plate, which is aluminum alloy.

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