A microwave module sintering assembly tool

Abstract

The utility model relates to a microwave module sintering assembly frock, include, sintering plane and pressing plate, be provided with the guide pillar on the sintering plane, be provided with the guide hole on the pressing plate, the guide pillar sets up in the guide hole, be provided with fixed clamping plate on the pressing plate, the fixed clamping plate is engaged with the guide pillar, the utility model solves the problem that microwave module printed board sintering process is complex, uses simple lock buckle pressing plate to replace the cover plate that needs a large number of screwing, greatly shortens the preparation time of microwave module sintering, saves the manpower cost, because the stroke of spring ejector pin can change, the utility model can realize the simultaneous sintering of a plurality of different thickness microwave modules, solves the problem that different microwave product modules need to be sintered separately.

Description

Technical Field

[0001] This utility model belongs to the field of microwave module sintering technology, specifically a microwave module sintering assembly fixture. Background Technology

[0002] Microwave product modules, as components of microwave systems, are widely used in communication, detection, and other fields. To ensure stable transmission of high-frequency signals, the assembly process of microwave product modules must guarantee high precision and high reliability. A qualified microwave module assembly process typically includes steps such as microstrip printed circuit board (PCB) mounting, component mounting, component interconnection processes, sealing and shielding, testing and calibration, and reliability testing. PCB mounting, as the first step in microwave module assembly, usually requires precise operations to sinter the microstrip PCB into the microstrip slots of the module housing according to a specific process.

[0003] According to the assembly process requirements of microwave product modules, the microstrip printed circuit board (PCB) inside the microstrip slot must be tightly fitted to the bottom of the slot. Therefore, during assembly, a pressure block is needed to firmly press the PCB together, and then the PCB is sintered to the bottom of the slot through a sintering process. The usual practice is to install the pressure block on the module, cover it with the module's own inner cover plate, tighten the inner cover plate with screws, and then place the module on a hot plate for sintering. While this method is effective, the inner cover plate usually has numerous screws, making installation and removal very inconvenient and posing a risk of damaging the inner cover plate. Therefore, there is an urgent need for a tooling that can simplify the sintering process of the microwave module PCB. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the following technical problems existing in the prior art, this utility model solves the problem of complex sintering process of microwave module printed circuit boards.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a microwave module sintering assembly fixture, comprising,

[0007] A sintering plane and a pressure plate, wherein a guide post is provided on the sintering plane, a guide hole is provided on the pressure plate, and the guide post is disposed in the guide hole;

[0008] The pressure plate is provided with a fixing clamp, which engages with the guide post.

[0009] As a preferred technical solution for microwave module sintering assembly tooling, the fixing clamp is provided with a first locking tooth, and the guide post is provided with a second locking tooth, the second locking tooth engaging with the first locking tooth.

[0010] As a preferred technical solution for microwave module sintering assembly tooling, the second tooth is a reverse sawtooth, with the flat tooth facing upwards and the oblique tooth facing downwards.

[0011] As a preferred technical solution for microwave module sintering assembly tooling, the pressure plate is provided with locking cavities at both ends, the locking cavities are connected to the guide holes, and the fixing clamp is disposed in the locking cavities.

[0012] As a preferred technical solution for microwave module sintering assembly tooling, a support column is provided in the locking cavity, a through hole is provided in the fixing clamp, the support column passes through the through hole, and a spring is sleeved on the support column, the spring connecting the bottom of the locking cavity and the fixing clamp.

[0013] As a preferred technical solution for microwave module sintering assembly tooling, a small cover plate is also provided, which is sealed at the opening of the locking cavity.

[0014] As a preferred technical solution for microwave module sintering assembly tooling, a relief groove is provided at the locking cavity, and a switch handle is provided in the relief groove. The switch handle is fixedly connected to the fixing clamp.

[0015] As a preferred technical solution for microwave module sintering assembly tooling, the pressure plate is provided with a placement groove, and multiple through holes are provided through the placement groove, with spring pins provided in the through holes.

[0016] As a preferred technical solution for microwave module sintering assembly tooling, the spring ejector pin includes an ejector pin, an ejector pin cylinder, a return spring, and a plunger. The plunger is disposed at one end of the ejector pin cylinder, the ejector pin is disposed inside the other end of the ejector pin cylinder, and the return spring is disposed in the ejector pin cylinder to connect the plunger and the ejector pin cylinder.

[0017] The beneficial effects of this utility model are as follows: This utility model solves the problem of complex sintering process of microwave module printed circuit boards. It uses a simple locking plate to replace the cover plate that requires a large number of screws, which greatly shortens the preparation time for microwave module sintering and saves labor costs. Since the stroke of the spring pin can be varied, this utility model can realize the simultaneous sintering of microwave modules of different thicknesses, which solves the problem that different microwave product modules need to be sintered independently in the past. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the pressure plate of this utility model;

[0021] Figure 3 This is an exploded structural diagram of the pressure plate of this utility model;

[0022] Figure 4 This is a schematic diagram of the spring-loaded ejector pin in this utility model;

[0023] Figure 5 This is a schematic diagram of the pre-state structure used in this utility model;

[0024] Figure 6 This is a schematic diagram of the tooling clamping state structure of this utility model.

[0025] Reference numerals: 100, sintered plane; 300, guide post; 202a, first locking tooth; 301, second locking tooth; 201, guide hole; 202b, through hole; 203a, support post; 203b, spring; 204, small cover plate; 203, locking cavity; 203c, relief groove; 203d, switch handle; 202, fixing clamp; 200, pressure plate; 206, placement groove; 206a, through hole; 400, spring ejector pin; 401, ejector pin; 403, return spring; 404, plunger; 402, ejector pin cylinder. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0030] Example 1

[0031] Reference Figures 1-6 This embodiment provides a microwave module sintering assembly fixture, including a sintering plane 100 and a pressure plate 200. A guide post 300 is provided on the sintering plane 100, and a guide hole 201 is provided on the pressure plate 200. The guide post 300 is disposed in the guide hole 201.

[0032] A fixing clamp 202 is provided on the pressure plate 200, and the fixing clamp 202 engages with the guide post 300.

[0033] The fixed clamp 202 is provided with a first locking tooth 202a, and the guide post 300 is provided with a second locking tooth 301, which engages with the first locking tooth 202a.

[0034] The second tooth 301 is a reverse sawtooth, with the flat teeth facing upwards and the oblique teeth facing downwards.

[0035] The second locking tooth 301 is inclined downward, so that when the pressure plate 200 is pressed down, the pressure plate 200 can slide down along the guide post 300. However, when the pressure plate 200 is moved upward, it is stuck and cannot continue to move upward, forming a locking structure. Under normal conditions, the pressure plate 200 presses on the sample under the action of gravity, clamping and fixing the sample.

[0036] The pressure plate 200 has locking cavities 203 at both ends, which are connected to the guide hole 201. The fixing clamp 202 is disposed in the locking cavity 203.

[0037] A support column 203a is provided in the lock cavity 203, and a through hole 202b is provided on the fixed clamping plate 202. The support column 203a passes through the through hole 202b, and a spring 203b is sleeved on the support column 203a. The spring 203b connects the bottom of the lock cavity 203 and the fixed clamping plate 202.

[0038] Spring 203b exerts a pushing force on fixed clamp 202, engaging the second locking tooth 301 with the first locking tooth 202a.

[0039] A small cover plate 204 is also provided, which is sealed at the opening of the lock cavity 203.

[0040] The small cover plate 204 can be fixed to the support column 203a by bolts. The small cover plate 204 is set on both sides of the opening of the lock cavity 203 to block the opening of the lock cavity 203 and encapsulate the fixing clamp 202 in the lock cavity 203.

[0041] A relief groove 203c is provided at the lock cavity 203, and a switch handle 203d is provided in the relief groove 203c. The switch handle 203d is fixedly connected to the fixed clamping plate 202.

[0042] The switch handle 203d is connected to the fixing plate 202 by bolts.

[0043] The pressure plate 200 is provided with a placement groove 206, and multiple through holes 206a are provided through the placement groove 206. Spring pins 400 are provided in the through holes 206a.

[0044] The spring-loaded ejector pin 400 includes an ejector pin 401, an ejector pin cylinder 402, a return spring 403, and a plunger 404. The plunger 404 is disposed at one end of the ejector pin cylinder 402, and the ejector pin 401 is disposed inside the other end of the ejector pin cylinder 402. The return spring 403 is disposed in the ejector pin cylinder 402 and connects the plunger 404 and the ejector pin cylinder 402.

[0045] This invention provides a simplified approach to the sintering process of microwave module printed circuit boards. A single, controllable-stroke board replaces the screw-fixed inner cover. An array of retractable spring pins (203b) is arranged on this board. The compression of the spring pins generates elastic force, which serves as the pressure source for the microwave module. The entire system is then placed as a whole on a hot plate for sintering. This significantly reduces the preparation time for microwave module printed circuit board sintering.

[0046] Figure 1 The image shows the overall appearance of the tooling. The microwave module sintering assembly tooling consists of three parts: a sintering plane 100, a pressure plate 200, and guide pillars 300. The sintering plane 100 is milled from copper and serves as the mounting and heat-conducting platform for the entire system. An array of fixing holes is formed on the sintering plane 100 to facilitate the fixing of heat-conducting components within the microwave module. The guide pillars 300 are made of four hollow stainless steel tubes, each with reversed serrations (flat teeth facing upwards, oblique teeth facing downwards). These serrations engage with the teeth within the pressure plate 200 to control its downward unidirectional movement. The pressure plate 200 is the main component providing pressure. Figure 2As shown, there are two switch handles 203d on each side of the pressure plate 200. In its natural state, the substrate can move downwards unidirectionally along the guide post 300. The spring 203b pin array installed on the pressure plate 200 can clamp the microwave module, which can fix the printed circuit board inside the microwave. At this time, the microwave module and the fixture can be placed on the hot stage for sintering. After sintering, pressing the switch handle 203d can unlock the pressure plate 200 and release the microwave module.

[0047] like Figure 3 The diagram shows the main components of the pressure plate 200, which mainly includes the following parts: small cover plate 204, switch handle 203d, fixing clamp 202, reset spring 403, spring pin 400, upper sealing plate, and the main body of the pressure plate 200.

[0048] The small cover plate 204, switch handle 203d, fixed clamping plate 202, and return spring 403 constitute the main locking mechanism, which is fixed by screws in the left and right locking cavities 203 of the main body of the pressure plate 200. Four sets of return springs 403 are respectively fitted onto four guide posts inside the main body of the pressure plate 200, controlling the fixed clamping plate 202 to return to its original position along the guide posts. Each end of the fixed clamping plate 202 has a serrated locking tongue. When the fixed clamping plate 202 is in its natural state, the locking tongues on both sides of the fixed clamping plate 202 engage with the serrations on the guide posts 300 due to the action of the return springs 403. Since both the locking tongues and the serrations on the guide posts 300 have a planar upward and inclined downward structure, the upward movement of the pressure plate 200 is restricted while the downward movement is not, thus enabling the pressure plate 200 to move unidirectionally downward under natural conditions. The spring pins 400 are arranged in a 6×6 linear pattern within the main body of the pressure plate 200 and are pressed and fixed by the upper sealing plate. This layout can disregard shape limitations and facilitates the use of microwave modules of various sizes.

[0049] like Figure 4 This describes the internal structure of the spring-loaded ejector pin 400. The spring-loaded ejector pin 400 consists of four parts: an ejector pin 401, an ejector pin cylinder 402, a return spring 403, and a plunger 404. Under the action of the return spring 403, the ejector pin 401 can move axially within the ejector pin cylinder 402. The plunger 404 is threaded into the ejector pin cylinder 402, simultaneously sealing the spring 203b of the ejector pin 401, thus achieving the elastic function.

[0050] like Figure 5The main method of using this fixture is to place the module to be sintered on the sintering plane 100, press down the pressure plate 200 to make full contact with the spring ejector pin 400 and compress it, then place the entire assembly on the hot plate for sintering. After sintering, press the handle switch to release the pressure plate 200 and remove the sintered microwave module. Due to the variable stroke of the spring ejector pin 400, this fixture can easily accommodate microwave modules of different thicknesses simultaneously.

[0051] 1. This utility model solves the problem of complex sintering process of microwave module printed circuit boards. It uses a simple locking plate 200 to replace the cover plate that requires a large number of screws, which greatly shortens the preparation time for microwave module sintering and saves labor costs.

[0052] 2. For example Figure 5 As shown, since the stroke of the spring pin 400 is variable, this invention can achieve simultaneous sintering of microwave modules of various thicknesses, solving the problem that different microwave product modules need to be sintered independently in the past.

[0053] 3. This utility model has a simple structure, and each component can be easily replaced, making it easy to adapt to the usage environment of various products.

[0054] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts can be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring extensive experimentation. It should be noted that the above embodiments are merely illustrative of the technical solutions of this utility model and not intended to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A microwave module sintering assembly fixture, characterized in that: include, A sintering plane (100) and a pressure plate (200) are provided. A guide post (300) is provided on the sintering plane (100), and a guide hole (201) is provided on the pressure plate (200). The guide post (300) is disposed in the guide hole (201). A fixing clamp (202) is provided on the pressure plate (200), and the fixing clamp (202) engages with the guide post (300).

2. The microwave module sintering assembly fixture according to claim 1, characterized in that: The fixed clamp (202) is provided with a first locking tooth (202a), and the guide post (300) is provided with a second locking tooth (301), the second locking tooth (301) engaging with the first locking tooth (202a).

3. The microwave module sintering assembly fixture according to claim 2, characterized in that: The second tooth (301) is a reverse sawtooth, with the flat teeth facing upwards and the oblique teeth facing downwards.

4. The microwave module sintering assembly fixture according to claim 3, characterized in that: The pressure plate (200) has locking cavities (203) at both ends, the locking cavities (203) are connected to the guide hole (201), and the fixing clamp (202) is disposed in the locking cavity (203).

5. The microwave module sintering assembly fixture according to claim 4, characterized in that: A support column (203a) is provided in the lock cavity (203), and a through hole (202b) is provided on the fixing plate (202). The support column (203a) passes through the through hole (202b), and a spring (203b) is sleeved on the support column (203a). The spring (203b) connects the bottom of the lock cavity (203) and the fixing plate (202).

6. The microwave module sintering assembly fixture according to claim 5, characterized in that: A small cover plate (204) is also provided, which is sealed at the opening of the lock cavity (203).

7. The microwave module sintering assembly fixture according to claim 6, characterized in that: A relief groove (203c) is provided in the lock cavity (203), and a switch handle (203d) is provided in the relief groove (203c). The switch handle (203d) is fixedly connected to the fixing plate (202).

8. The microwave module sintering assembly fixture according to claim 7, characterized in that: The pressure plate (200) is provided with a placement groove (206), and a plurality of through holes (206a) are provided through the placement groove (206), and a spring pin (400) is provided in the through hole (206a).

9. The microwave module sintering assembly fixture according to claim 8, characterized in that: The spring-loaded ejector pin (400) includes an ejector pin (401), an ejector pin cylinder (402), a return spring (403), and a plunger (404). The plunger (404) is disposed at one end of the ejector pin cylinder (402), and the ejector pin (401) is disposed at the other end of the ejector pin cylinder (402). The return spring (403) is disposed in the ejector pin cylinder (402) and connects the plunger (404) and the ejector pin cylinder (402).

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