A general tool for mounting microwave radio frequency circuit

Abstract

The utility model relates to the technical field of microwave and radio frequency circuit, disclose a kind of general tool for microwave radio frequency circuit mounting, including several pressing block assemblies, upper support and base, the pressing block assembly includes several pressure head assemblies and mounting support, the pressure head assembly is adjustably connected on the mounting support;Several the pressing block assemblies are adjustably connected on the upper support;The both sides of the base are hinged with connecting rod, the pressing block is adjustably connected on the connecting rod, and the pressing block is crimped on the upper support.The utility model has the beneficial effect that the microwave assembly of different size can be positioned, and the large microwave assembly with an area of more than 100mm*100mm can be clamped in the whole area without the combination of multiple clamps, thereby improving the production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of microwave and radio frequency circuit technology, and specifically to a general-purpose tooling for mounting microwave and radio frequency circuits. Background Technology

[0002] Microwave components are core parts of radar, communication, and electronic warfare systems, and their performance directly determines the overall equipment specifications. Two crucial process steps are involved in the assembly of the microwave component's circuit substrate: first, the high-precision, high-reliability bonding between the flexible substrate circuit board and the component cavity; and second, the sintering or bonding between the integrated printed circuit board and the cavity. These two processes are typically achieved using conductive adhesive or tin-lead solder, and pressure must be applied to the component during mounting using C-clamps or other pressure fixtures to ensure a robust structure, stable performance, and the reliability required for long-term operation.

[0003] As the production of microwave components increases, the shortcomings of existing tooling are becoming increasingly apparent, mainly in two aspects: First, poor clamping consistency. Each time a product is fixed, the fixture needs to be readjusted, making it impossible to guarantee that the same pressure is applied each time, resulting in low performance and structural consistency of batch products after mounting. Second, low production efficiency. For larger microwave components with an area exceeding 100mm×100mm, multiple fixtures are required to achieve full-area clamping, which significantly extends the fixture installation time and affects the progress of the overall production plan. Utility Model Content

[0004] The technical problem this invention aims to solve is that currently, multiple fixtures are required to clamp larger microwave components across the entire area, resulting in low production efficiency. The purpose is to provide a universal fixture for microwave RF circuit mounting, in which a single fixture can clamp and position microwave components of different sizes, eliminating the need for multiple fixtures to clamp larger microwave components across the entire area and improving production efficiency.

[0005] This utility model is achieved through the following technical solution:

[0006] A general-purpose tooling for mounting microwave radio frequency circuits includes several pressure block assemblies, an upper support, and a base. Each pressure block assembly includes several pressure head assemblies and a mounting bracket. The pressure head assemblies are adjustablely connected to the mounting bracket. Several of the pressure block assemblies are adjustablely connected to the upper support. Connecting rods are hinged to both sides of the base, and pressure blocks are adjustablely connected to the connecting rods. The pressure blocks press against the upper support.

[0007] The beneficial effects of this utility model are that by setting a pressure head assembly to apply pressure to the microwave assembly for positioning, and by adjusting the pressure head assembly to the mounting bracket for positioning microwave assemblies of different lengths, and by adjusting the pressure block assembly to the upper bracket for adjusting the distance between the pressure block assemblies for positioning microwave assemblies of different widths, it is possible to position microwave assemblies of different sizes, thereby improving the versatility of the tooling. It eliminates the need for multiple clamps to clamp large microwave assemblies with an area exceeding 100mm × 100mm across the entire area; the microwave assembly is simply placed on the base and positioned by the pressure block assembly, improving production efficiency and the versatility of the fixture. Furthermore, by setting a connecting rod and pressure blocks on the base, the position of the pressure blocks on the connecting rod can be adjusted to control the applied pressure value to the microwave assembly.

[0008] In some embodiments, the mounting bracket is elongated and frame-shaped, and has mounting holes extending along its length. The pressure head assembly is adjustablely connected within these mounting holes. The mounting holes extending along the length of the mounting bracket allow for easy adjustment of the pressure head assembly's position, enabling the positioning of different products.

[0009] In some embodiments, the pressure head assembly includes a pressure head, a locking nut, and a fixing member. The fixing member has a boss at its upper end and is detachably connected to the upper end of the pressure head. A threaded rod is provided at the top of the fixing member, passing through the mounting hole and engaging with the locking nut. The top of the boss abuts against the bottom of the mounting bracket, and the bottom of the locking nut abuts against the top of the mounting bracket. By providing the locking nut and threaded rod for engagement and the boss on the fixing member, the pressure head assembly can be easily positioned on the mounting bracket through the engagement of the boss and the locking nut. It also facilitates the movement and positioning of the pressure head assembly by tightening the locking nut.

[0010] In some embodiments, the pressure head assembly further includes a wave-shaped washer and a locking pin. The axis of the pressure head is provided with a through hole for the bottom of the fixing member to pass through. The pressure head is provided with a pin hole communicating with the through hole. The pressure head is provided with an oblong through hole. The locking pin passes through the through hole and the oblong through hole to connect the fixing member to the pressure head. The wave-shaped washer is sleeved on the fixing member and located between the pressure head and the boss. By providing an oblong through hole on the pressure head and providing a wave-shaped washer between the pressure head and the boss, it is possible to accommodate height errors caused by product dimensional tolerances and ensure that each pressure head assembly can effectively apply pressure.

[0011] In some embodiments, the upper support is frame-shaped, hollow in the middle, and has mounting through holes at both ends. Screws are connected to both ends of the mounting bracket, passing through the mounting through holes and engaging with connecting nuts. The connecting nuts abut against the upper support. By providing mounting through holes on both sides of the upper support for the screws at both ends to pass through, the corresponding pressure block assembly can be adjusted and connected to the upper support with the cooperation of the connecting nuts. The position of the pressure block assembly can be adjusted as needed to achieve positioning of different products.

[0012] In some embodiments, several connecting lugs are provided on both sides of the upper bracket. The connecting lugs extend along the outer side of the upper bracket, and a slot is formed between adjacent connecting lugs. The connecting rod can be located in the slot, and the pressure block is located at the top of the connecting lug. By providing connecting lugs and extending them along the outer side of the upper bracket, interference between the pressure block and the pressure block assembly is prevented.

[0013] In some embodiments, the slots are evenly distributed along the length of the upper bracket. By evenly distributing the slots along the length of the upper bracket, it is ensured that the upper bracket is subjected to uniform force, thereby ensuring that the microwave assembly is subjected to uniform force during operation.

[0014] In some embodiments, several mounting lugs are provided on both sides of the base, extending along the outer side of the upper bracket. The bottom of the connecting rod is hinged to two adjacent mounting lugs. The connecting rod is a threaded rod, and the pressure block is a wing nut. The wing nut is screwed onto the threaded rod, which can extend into the slot. The wing nut abuts against the upper end of the corresponding connecting lug. By providing mounting lugs on the base, interference between the threaded rod and the upper bracket is prevented, and the pressure applied to the microwave component by the pressure head assembly can be adjusted by adjusting the position of the wing nut on the threaded rod.

[0015] In some embodiments, a scale is provided on the threaded rod, extending along the length of the threaded rod. By providing a scale on the threaded rod, it is convenient to adjust all wing nuts to the same scale when installing microwave components, ensuring consistent pressure when changing between different products.

[0016] In some embodiments, the base is plate-shaped and has several vent holes, the outer dimensions of which are smaller than the minimum outer dimensions of the microwave component. The presence of vent holes on the base allows hot air during aging heating to come into contact with the microwave component.

[0017] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0018] 1. By adjusting the pressure head assembly to the mounting bracket, and adjusting the pressure block assembly consisting of the pressure head assembly and the mounting bracket to the upper bracket, the positioning of microwave components of different sizes can be achieved, improving the versatility of the tooling. It eliminates the need for multiple fixtures to be combined to clamp larger microwave components with an area exceeding 100mm×100mm in the entire area, thereby improving production efficiency.

[0019] 2. An oblong through hole is provided on the pressure head, and a wave-shaped washer is provided between the pressure head and the boss to accommodate height errors caused by product size tolerances and ensure that each pressure head assembly can effectively apply pressure.

[0020] 3. A scale is installed on the threaded rod to facilitate adjusting all wing nuts to the same scale when installing microwave components, ensuring consistent pressure when changing different products. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a structural diagram of the present invention;

[0023] Figure 2 This is a partial structural diagram of the present invention;

[0024] Figure 3 This is an exploded view of the pressure block assembly of this utility model;

[0025] Figure 4 This is a structural diagram of the threaded rod in this utility model;

[0026] Figure 5 This is an exploded view of the pressure head assembly in this utility model.

[0027] The attached diagram shows the markings and corresponding component names:

[0028] Upper bracket 1, mounting through hole 110, slot 103, mounting bracket 2, mounting hole 21, screw 22, connecting nut 23, base 3, mounting lug 31, vent hole 301, wing nut 4, connecting screw 6, threaded rod 7, connecting hole 71, fastener 8, wave washer 9, pressure head 10, pin hole 101, jack pin 11, locking nut 14. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0030] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] In the description of this utility model, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0032] The terms "first," "second," etc., used in this utility model are merely for clarity of description and are not intended to limit any order or emphasize importance. Furthermore, the term "connection" as used herein, unless otherwise specified, can refer to a direct connection or an indirect connection via other components.

[0033] Example

[0034] like Figures 1-5 As shown, this embodiment provides a universal fixture for mounting microwave radio frequency circuits, including several pressure block assemblies, an upper support 1, and a base 3. Each pressure block assembly includes several pressure head assemblies 10 and a mounting bracket 2. The pressure head 10 assemblies are adjustablely connected to the mounting bracket 2. Several pressure block assemblies are adjustablely connected to the upper support 1. Connecting rods are hinged to both sides of the base 3, and pressure blocks are adjustablely connected to the connecting rods, pressing against the upper support 1. This fixture enables positioning of microwave components of different sizes, improving its versatility. It eliminates the need for multiple clamps to clamp larger microwave components exceeding 100mm × 100mm across the entire area, improving production efficiency. Furthermore, by setting connecting rods and pressure blocks on the base 3, the position of the pressure blocks on the connecting rods can be adjusted to control the applied pressure value to the microwave component.

[0035] See Figure 1 and Figure 3 The mounting bracket 2 is elongated and frame-shaped, and has mounting holes 21 extending along its length. The pressure head 10 assembly is adjustablely connected within these mounting holes 21. The mounting holes 21, extending along the length of the mounting bracket 2, allow for easy adjustment of the pressure head 10 assembly's position, enabling the positioning of different products.

[0036] See Figure 3 and Figure 5 The pressure head 10 assembly includes a pressure head 10, a locking nut 14, and a fixing member 8. The upper end of the fixing member 8 is provided with a boss. The fixing member 8 is detachably connected to the upper end of the pressure head 10. A threaded rod 7 is provided on the top of the fixing member 8. The threaded rod 7 passes through the mounting hole 21 and engages with the locking nut 14. The top of the boss abuts against the bottom of the mounting bracket 2, and the bottom of the locking nut 14 abuts against the top of the mounting bracket 2. By setting the locking nut 14 to engage with the threaded rod 7 and providing a boss on the fixing member 8, it is convenient to position the pressure head 10 assembly on the mounting bracket 2 through the engagement of the boss and the locking nut 14. It also facilitates the movement and positioning of the pressure head 10 assembly by tightening the locking nut 14.

[0037] See Figure 3 and Figure 5 The pressure head 10 assembly also includes a wave-shaped washer 9 and a locking pin 11. The pressure head 10 has a through hole at its axis for the bottom of the fixing member 8 to pass through. The pressure head 10 has a pin hole 101 communicating with the through hole and a waist-shaped through hole. The locking pin 11 passes through the through hole and the waist-shaped through hole to connect the fixing member 8 to the pressure head 10. The wave-shaped washer 9 is fitted onto the fixing member 8 and located between the pressure head 10 and the boss. By providing a waist-shaped through hole on the pressure head 10 and placing the wave-shaped washer 9 between the pressure head 10 and the boss, height errors caused by product dimensional tolerances can be accommodated, ensuring that each pressure head 10 assembly effectively applies pressure.

[0038] See Figure 1 and Figure 3The upper support 1 is frame-shaped, hollow in the middle, and has mounting through holes 110 at both ends. Screws 22 are connected to both ends of the mounting bracket 2. The screws 22 pass through the mounting through holes 110 and engage with connecting nuts 23, which abut against the upper support 1. By providing mounting through holes 110 on both sides of the upper support 1 for the screws 22 at both ends of the mounting bracket 2 to pass through, the corresponding pressure block assembly can be adjusted and connected to the upper support 1 with the cooperation of the connecting nuts 23. The position of the pressure block assembly can be adjusted as needed to achieve positioning of different products.

[0039] See Figure 1 The upper support 1 has several connecting lugs on both sides, which extend along the outer side of the upper support 1. A slot 103 is formed between two adjacent connecting lugs, and the connecting rod can be located in the slot 103. The pressure block is located at the top of the connecting lug. By providing connecting lugs and extending them along the outer side of the upper support 1, interference between the pressure block and the pressure block assembly is prevented.

[0040] See Figure 1 The slots 103 are evenly distributed along the length of the upper support 1. By evenly distributing the slots 103 along the length of the upper support 1, it is ensured that the upper support 1 is subjected to uniform force, thereby ensuring that the microwave component is subjected to uniform force during operation.

[0041] See Figure 1 and Figure 2 The base 3 has several mounting lugs 31 on both sides, which extend along the outer side of the upper bracket 1. The bottom of the connecting rod is hinged to two adjacent mounting lugs 31. The connecting rod is a threaded rod 7, and the pressure block is a wing nut 4. The wing nut 4 is screwed onto the threaded rod 7, which can extend into the slot 103. The wing nut 4 abuts against the upper end of the corresponding connecting lug. By providing mounting lugs 31 on the base 3, interference between the threaded rod 7 and the upper bracket 1 is prevented. It also facilitates adjusting the pressure applied to the microwave component by adjusting the position of the wing nut 4 on the threaded rod 7.

[0042] See Figure 2 and Figure 4 A scale is provided on the threaded rod 7, extending along its length. By providing a scale on the threaded rod 7, it is easy to adjust all the wing nuts 4 to the same scale when installing the microwave assembly, ensuring consistent pressure when changing different products.

[0043] See Figure 4The bottom of the threaded rod 7 is provided with a connecting hole 71. The connecting screw 6 passes through the through hole on the mounting lug 31 and the connecting hole 71, and the threaded rod 7 is hinged to the mounting lug 31.

[0044] See Figure 1 and Figure 2 The base 3 is plate-shaped and has several vent holes 301. The external dimensions of the vent holes 301 are smaller than the minimum external dimensions of the microwave component. By providing several through holes on the base 3, the hot air during aging heating can come into contact with the microwave component.

[0045] During operation, first adjust the relative positions of each pressure block assembly and each pressure head assembly so that the pressure head 10 is aligned with the position where pressure needs to be applied. Then, place the microwave assembly between the upper support 1 and the base 5, lift the threaded rod 7 to lock the upper support 1, and finally rotate the wing nut 4 to the target scale. This novel and practical design allows for direct and quick use of subsequent products of the same model after initial workpiece matching and adjustment. Recording the adjusted position and scale also facilitates easy switching of the tooling pressure point when changing to different product models.

[0046] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A universal tooling for mounting microwave radio frequency circuits, characterized in that, include: A plurality of pressing block assemblies, each pressing block assembly including a plurality of pressing head assemblies and a mounting bracket, wherein the pressing head assemblies are adjustablely connected to the mounting bracket; An upper support, on which several of the aforementioned pressure block assemblies are adjustablely connected; The base has connecting rods hinged to both sides, and pressure blocks are adjustablely connected to the connecting rods, which press against the upper bracket.

2. The universal fixture for mounting microwave radio frequency circuits according to claim 1, characterized in that, The mounting bracket is a long, rectangular frame with mounting holes extending along its length. The pressure head assembly is adjustablely connected to the mounting holes.

3. The universal tooling for mounting microwave radio frequency circuits according to claim 2, characterized in that, The pressure head assembly includes a pressure head, a locking nut, and a fixing member. The upper end of the fixing member is provided with a boss. The fixing member is detachably connected to the upper end of the pressure head. The top of the fixing member is provided with a threaded rod. The threaded rod passes through the mounting hole and engages with the locking nut. The top of the boss abuts against the bottom of the mounting bracket, and the bottom of the locking nut abuts against the top of the mounting bracket.

4. The universal tooling for mounting microwave radio frequency circuits according to claim 3, characterized in that, The pressure head assembly also includes a wave washer and a locking pin. The axis of the pressure head is provided with a through hole for the bottom of the fixing member to pass through. The pressure head is provided with a pin hole communicating with the through hole. The pressure head is provided with a waist-shaped through hole. The locking pin passes through the through hole and the waist-shaped through hole to connect the fixing member to the pressure head. The wave washer is sleeved on the fixing member and located between the pressure head and the boss.

5. The universal tooling for mounting microwave radio frequency circuits according to claim 3, characterized in that, The upper bracket is frame-shaped, hollow in the middle, and has mounting through holes at both ends. Each end of the mounting bracket is connected to a screw, which passes through the mounting through hole and engages with a connecting nut. The connecting nut abuts against the upper bracket.

6. The universal tooling for mounting microwave radio frequency circuits according to claim 3, characterized in that, Several connecting lugs are provided on both sides of the upper bracket. The connecting lugs extend along the outer side of the upper bracket. A slot is formed between two adjacent connecting lugs. The connecting rod can be located in the slot. The pressure block is located on the top of the connecting lug.

7. The universal tooling for mounting microwave radio frequency circuits according to claim 6, characterized in that, The card slots are evenly distributed along the length of the upper bracket.

8. The universal fixture for mounting microwave radio frequency circuits according to claim 6, characterized in that, Several mounting lugs are provided on both sides of the base. The mounting lugs extend along the outer side of the upper bracket. The bottom of the connecting rod is hinged to two adjacent mounting lugs. The connecting rod is a threaded rod. The pressure block is a wing nut. The wing nut is screwed onto the threaded rod. The threaded rod can extend into the slot. The wing nut abuts against the upper end of the corresponding connecting lug.

9. The universal tooling for mounting microwave radio frequency circuits according to claim 8, characterized in that, A scale is provided on the threaded rod, and the scale extends along the length of the threaded rod.

10. The universal tooling for mounting microwave radio frequency circuits according to any one of claims 1-9, characterized in that, The base is plate-shaped and has several ventilation holes. The external dimensions of the ventilation holes are smaller than the minimum external dimensions of the microwave component.

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