Fine needle set for punching processing of microwave circuit chip substrate

By integrating cleaning and washing components into a precision needle assembly, the problem of the cleanliness of the inner wall of the hole after drilling on the microwave circuit chip substrate is solved, realizing the integration of drilling and cleaning, protecting the substrate and precision needle, and reducing rework rate.

CN224544791UActive Publication Date: 2026-07-24ZHEJIANG SHUANGXIN MICROELECTRONICS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG SHUANGXIN MICROELECTRONICS TECH CO LTD
Filing Date
2025-10-20
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

After drilling holes in the microwave circuit chip substrate, deionized water needs to be dripped in to improve the cleanliness of the inner wall of the hole, which adds an extra step and is inconvenient to handle.

Method used

Design a precision needle assembly that integrates a cleaning component and a washing component. The cleaning plate, connected by a torsion spring, automatically removes debris from the surface of the precision needle. After drilling, deionized water stored in a storage tank is precisely injected into the hole through a drain pipe to remove residual debris.

Benefits of technology

It integrates drilling and cleaning, shortens process time, protects the substrate and precision needles, reduces rework rate, and ensures that the cleaning effect does not corrode the substrate material.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a fine needle group module for microwave circuit chip substrate punching processing belongs to chip substrate punching technical field, and this group module includes removal assembly, punch assembly, storage box and drain pipe, and the cleaning assembly is through the cleaning board of torsional spring connection, can be in the automatic contact of hollow type punching fine needle upward reset, removes the substrate debris of fine needle surface attachment, avoids the chip with fine needle secondary and takes into the hole or pollutes other area, and the cleaning assembly is through the storage of storage tank deionized water, after punching is completed, and starts solenoid valve can utilize external air pressure, makes deionized water through drain pipe accurate injection in the hole, removes the residual debris and processing impurity in the hole, compared with traditional manual cleaning or corrosive solution cleaning, and deionized water will not corrode fine needle, also will not destroy microwave substrate material quality, guarantees the cleaning effect simultaneously, protects the performance and fine needle life of substrate, reduces the rework rate of follow -up.
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Description

Technical Field

[0001] This utility model belongs to the field of substrate drilling technology, specifically, it relates to a precision needle assembly for drilling microwave circuit chip substrates. Background Technology

[0002] The core purpose of drilling holes in microwave circuit chip substrates is to solve the problem of three-dimensional interconnection and structural adaptation of high-frequency signals, power supply and heat dissipation. Unlike ordinary PCBs that only meet electrical conduction, the drilling requirements of microwave substrates must simultaneously meet the three core requirements of low-loss microwave signal transmission, miniaturized chip integration and high-power heat dissipation.

[0003] However, after the substrate is drilled, deionized water needs to be dripped into the inside of the hole to improve the cleanliness of the inner wall of the hole. Therefore, an additional process is added after drilling, making the treatment of the inside of the hole extremely inconvenient. 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] To address the problem mentioned in the background art that after drilling a substrate, deionized water needs to be dripped into the hole to improve the cleanliness of the hole wall, thus adding a process after drilling and making the treatment of the hole's interior extremely inconvenient, the present invention adopts the following technical solution.

[0006] A precision needle assembly for drilling microwave circuit chip substrates includes a door on one side of a drilling machine body, the door being rotatably connected to the drilling machine body. A movable component is located on the top inner side of the drilling machine body, and a drilling component is mounted on the movable component. A base support is located on the bottom inner side of the drilling machine body, and the substrate is mounted on the base support. A sliding plate is slidably connected to the movable component, and a horizontally arranged connecting plate is connected to the bottom of the sliding plate. A liftable assembly plate is located at the bottom of the connecting plate, and the drilling component is mounted on the assembly plate. A storage box is located on one side of the upper end of the assembly plate. Support legs are connected to the four corners of the bottom of the storage box, and the support legs are detachably connected to the upper end of the assembly plate. A liquid inlet is located at the upper end of the storage box, and a cap is provided on the liquid inlet. A drain pipe is detachably connected to the bottom of the storage box.

[0007] Preferably, the drain pipe passes through the assembly plate and is located on one side of the hollow punch needle. The end of the drain pipe near the hollow punch needle extends downward, and a solenoid valve is detachably connected to the upper end of the storage tank.

[0008] Preferably, a cleaning plate is rotatably connected to one side of the outer wall of the connecting cross plate by a torsion spring. The cleaning plate has a force that rotates towards the hollow punch needle, and the end of the cleaning plate contacts the outer wall of the hollow punch needle.

[0009] Preferably, the drilling assembly includes a laser emitter and a hollow drilling needle. A lifting cylinder is provided at the upper end of the connecting horizontal plate. The telescopic end of the lifting cylinder passes through the connecting horizontal plate and is detachably connected to a U-shaped frame with its opening facing downward. The vertical side of the U-shaped frame is connected to the upper end of the assembly plate. Limiting slide rods passing through the connecting horizontal plate are detachably connected to both sides of the upper end of the assembly plate. A laser emitter is detachably connected to the upper end of the assembly plate. A hollow drilling needle is detachably connected to the assembly plate. The emitting end of the laser emitter is opposite to the hollow part of the hollow drilling needle.

[0010] Preferably, the moving component includes a first electric slide rail, a sliding mounting plate, and a second electric slide rail. The first electric slide rail is disposed on the inner walls of both sides of the punching machine body. A sliding mounting plate is slidably connected between the two sides of the first electric slide rail. The upper end of the sliding mounting plate is detachably connected to the second electric slide rail. The sliding plate is slidably connected to the interior of the second electric slide rail.

[0011] Preferably, the box door is provided with a viewing window.

[0012] Preferably, a mounting bracket is provided on one side of the punching machine body, and a keyboard and mouse assembly and a display screen are mounted on the mounting bracket.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This precision needle assembly innovatively integrates a cleaning component and a washing component, achieving integrated drilling and cleaning. This eliminates the need for additional substrate transfer for post-processing, significantly shortening process time. The cleaning component, connected by a torsion spring, automatically contacts the outer wall of the hollow drilling needle when it returns to its upward position, removing substrate debris adhering to the needle surface and preventing it from being carried back into the hole or contaminating other areas. During drilling, the assembly plate can push the cleaning plate outwards without affecting the needle's normal processing, balancing cleaning effectiveness and processing continuity. The washing component stores deionized water in a storage tank. After drilling, activating the solenoid valve utilizes external air pressure to precisely inject deionized water into the hole through the drain pipe, removing residual debris and processing impurities. Compared to traditional manual cleaning or corrosive solution cleaning, deionized water neither corrodes the needle nor damages the microwave substrate material, ensuring cleaning effectiveness while protecting substrate performance and needle lifespan, reducing subsequent rework rates. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a precision needle assembly structure for drilling microwave circuit chip substrates according to this utility model;

[0016] Figure 2 This is a front view structural diagram of the punching machine body in this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the punching machine body in this utility model;

[0018] Figure 4 This is a schematic diagram of the mobile component structure in this utility model;

[0019] Figure 5 In this utility model Figure 4 Enlarged structural diagram at point A in the middle;

[0020] Figure 6 This is a schematic diagram of the cleaning component structure in this utility model.

[0021] The correspondence between the labels and component names in the attached figures is as follows:

[0022] 100. Drilling machine body; 101. Case door; 102. Viewing window; 103. Mounting bracket; 104. Keyboard and mouse assembly; 105. Display screen; 106. Grip handle; 107. Base bracket;

[0023] 200. Moving component; 201. First electric slide rail; 202. Sliding mounting plate; 203. Second electric slide rail; 204. Sliding plate; 206. Connecting cross plate;

[0024] 300. Drilling assembly; 301. Assembly plate; 302. Limiting slide bar; 303. Lifting cylinder; 304. Laser emitter; 306. Hollow drilling needle; 307. Cleaning plate; 308. U-shaped frame;

[0025] 400. Storage tank; 401. Support leg; 402. Drain pipe; 403. Solenoid valve; 404. Liquid filling port. 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. The present invention provides the following embodiments.

[0029] like Figure 1 as well as Figure 2 The diagram shows a preferred embodiment of the precision needle assembly for drilling microwave circuit chip substrates according to the present invention. This embodiment includes a mounting bracket 103 on one side of the drilling machine body 100, a keyboard and mouse assembly 104 and a display screen 105 mounted on the mounting bracket 103. A door 101 is rotatably connected to one side of the outer wall of the drilling machine body 100, with a viewing window 102 and a handle 106. In this embodiment, the door 101 is opened by holding the handle 106, and the workpiece is placed inside the drilling machine body 100 for processing. Drilling data is input through the keyboard and mouse assembly 104 and the display screen 105 to achieve precise drilling of the substrate.

[0030] like Figure 3 As shown, this is a schematic diagram of the internal structure of the punching machine body in this embodiment. A moving component 200 is provided on the top inner side of the punching machine body 100, and a punching component 300 is provided on the moving component 200. A base support 107 is provided on the bottom inner side of the punching machine body 100, and the substrate is fixed on the base support 107. In this embodiment, the punching component 300 can be moved back and forth and left and right by the moving component 200, which is convenient for adjusting the punching position. The punching component 300 punches holes in the substrate.

[0031] like Figure 4 As shown, this is a schematic diagram of the moving component structure in this embodiment. The moving component 200 includes a first electric slide rail 201, a sliding mounting plate 202, and a second electric slide rail 203. The first electric slide rail 201 is disposed on the inner walls of both sides inside the drilling machine body 100. The sliding mounting plate 202 is slidably connected between the two sides of the first electric slide rail 201. The upper end of the sliding mounting plate 202 is detachably connected to the second electric slide rail 203. A sliding plate 204 is slidably connected inside the second electric slide rail 203. A horizontally arranged connecting plate 206 is fixedly connected to the bottom of the sliding plate 204. The drilling component 300 is mounted on the connecting plate 206. In this embodiment, the sliding mounting plate 202 and the second electric slide rail 203 are moved back and forth by the first electric slide rail 201, and the sliding plate 204 is moved left and right by the second electric slide rail 203, thereby enabling the drilling component 300 to move back and forth and left and right.

[0032] like Figure 4 , Figure 5 as well as Figure 6 As shown, this is a schematic diagram of the drilling assembly structure in this embodiment. The drilling assembly 300 includes a laser emitter 304 and a hollow drilling needle 306. A lifting cylinder 303 is provided at the upper end of the connecting horizontal plate 206. The telescopic end of the lifting cylinder 303 passes through the connecting horizontal plate 206 and is detachably connected to a U-shaped frame 308 with its opening facing downward. An assembly plate 301 is fixedly connected to the bottom of the U-shaped frame 308. Limiting slide rods 302 passing through the connecting horizontal plate 206 are detachably connected to both sides of the upper end of the assembly plate 301. A laser emitter 304 is detachably connected to the upper end of the assembly plate 301, and a hollow drilling needle 306 is detachably connected to the bottom of the assembly plate 301. The emitting end of the laser emitter 304 is opposite to the hollow part of the hollow drilling needle 306. In this embodiment, the assembly plate 301 is moved up and down by the extension and retraction of the lifting cylinder 303, which can reduce the distance between the hollow drilling needle 306 and the substrate on the base bracket 107. The laser emitted by the laser emitter 304 passes through the hollow drilling needle 306 to drill holes in the substrate.

[0033] like Figure 4 as well as Figure 5 As shown, this is a schematic diagram of the cleaning component structure in this embodiment. A cleaning plate 307 is rotatably connected to the outer wall of the connecting horizontal plate 206 via a torsion spring. The cleaning plate 307 has a force that rotates towards the hollow punch needle 306. The end of the cleaning plate 307 contacts the outer wall of the hollow punch needle 306. In this embodiment, cleaning can be performed when the hollow punch needle 306 moves upward by the cleaning plate 307 contacting the hollow punch needle 306. When the hollow punch needle 306 moves downward, the mounting plate 301 abuts against the outer wall of the cleaning plate 307 to make it flip outward, thereby preventing the cleaning plate 307 from contacting the hollow punch needle 306 during punching.

[0034] like Figure 6 As shown, this is a schematic diagram of the cleaning component structure in this embodiment. A storage tank 400 is provided on one side of the upper end of the assembly plate 301. Support legs 401 are fixedly connected to the four corners of the bottom of the storage tank 400. The support legs 401 are detachably connected to the upper end of the assembly plate 301. A liquid inlet 404 is provided at the upper end of the storage tank 400. A cap is provided on the liquid inlet 404. A drain pipe 402 is detachably connected to the bottom of the storage tank 400. The drain pipe 402 passes through the assembly plate 301 and is located on one side of the hollow punch needle 306. The end of the drain pipe 402 near the hollow punch needle 306 extends downward. A solenoid valve 403 is detachably connected to the upper end of the storage tank 400. In this embodiment, by activating the solenoid valve 403, external air can enter the interior of the storage tank 400, causing the deionized water inside to be discharged downward from the drain pipe 402 by gravity and drip into the interior of the hole. This allows cleaning to be performed after punching, reducing the number of steps.

[0035] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A precision needle assembly for drilling microwave circuit chip substrates, comprising a door (101) disposed on one side of a drilling machine body (100), the door (101) being rotatably connected to the drilling machine body (100), characterized in that, A movable component (200) is provided on the top inner side of the punching machine body (100), and a punching component (300) is provided on the movable component (200). A base bracket (107) is provided on the bottom inner side of the punching machine body (100), and the base plate is mounted on the base bracket (107); A sliding plate (204) is slidably connected to the movable component (200), and a horizontally arranged connecting plate (206) is connected to the bottom of the sliding plate (204); The bottom of the connecting horizontal plate (206) is provided with a liftable assembly plate (301), the punching assembly (300) is installed on the assembly plate (301), a storage box (400) is provided on one side of the upper end of the assembly plate (301), a support leg (401) is connected to the four corners of the bottom of the storage box (400), the support leg (401) is detachably connected to the upper end of the assembly plate (301), a liquid filling port (404) is provided at the upper end of the storage box (400), a screw cap is provided on the liquid filling port (404), and a drain pipe (402) is detachably connected to the bottom of the storage box (400).

2. The precision needle assembly for drilling microwave circuit chip substrates according to claim 1, characterized in that, The drain pipe (402) passes through the assembly plate (301) and is located on one side of the hollow punch needle (306). The end of the drain pipe (402) near the hollow punch needle (306) extends downward. The upper end of the storage tank (400) is detachably connected to a solenoid valve (403).

3. The precision needle assembly for drilling microwave circuit chip substrates according to claim 1, characterized in that, The outer wall of the connecting horizontal plate (206) is rotatably connected to a cleaning plate (307) by a torsion spring. The cleaning plate (307) has a force that rotates in the direction of the hollow punch needle (306), and the end of the cleaning plate (307) contacts the outer wall of the hollow punch needle (306).

4. The precision needle assembly for drilling microwave circuit chip substrates according to claim 1, characterized in that, The drilling assembly (300) includes a laser emitter (304) and a hollow drilling needle (306). A lifting cylinder (303) is provided at the upper end of the connecting horizontal plate (206). The telescopic end of the lifting cylinder (303) passes through the connecting horizontal plate (206) and is detachably connected to a U-shaped frame (308) with its opening facing downward. The vertical side of the U-shaped frame (308) is connected to the upper end of the assembly plate (301). Limiting slide rods (302) that pass through the connecting horizontal plate (206) are detachably connected to both sides of the upper end of the assembly plate (301). The laser emitter (304) is detachably connected to the upper end of the assembly plate (301). The hollow drilling needle (306) is detachably connected to the assembly plate (301). The emitting end of the laser emitter (304) is opposite to the hollow part of the hollow drilling needle (306).

5. The precision needle assembly for drilling microwave circuit chip substrates according to claim 1, characterized in that, The moving component (200) includes a first electric slide rail (201), a sliding mounting plate (202), and a second electric slide rail (203). The first electric slide rail (201) is disposed on the inner walls of both sides inside the drilling machine body (100). The sliding mounting plate (202) is slidably connected between the two sides of the first electric slide rail (201). The upper end of the sliding mounting plate (202) is detachably connected to the second electric slide rail (203). The sliding plate (204) is slidably connected to the interior of the second electric slide rail (203).

6. The precision needle assembly for drilling microwave circuit chip substrates according to claim 1, characterized in that, The box door (101) is provided with a viewing window (102).

7. The precision needle assembly for drilling microwave circuit chip substrates according to claim 1, characterized in that, A mounting bracket (103) is provided on one side of the punching machine body (100), and a keyboard and mouse assembly (104) and a display screen (105) are provided on the mounting bracket (103).