Efficient and comprehensive PCB micro drill cleaning device

Abstract

The utility model relates to the technical field of PCB processing, and specifically discloses a high -efficient comprehensive PCB micro drill cleaning device to solve the inconvenient cleaning problem in the prior art, including a lifting baseplate, the lifting baseplate upper end is equipped with the shell, the shell upper end is equipped with the cleaning port convenient for drill needle group insertion, the shell position is equipped with the high -frequency air knife subassembly that carries out the cleaning to drill needle group, the lifting baseplate upper end is equipped with the cleaning module that carries out the cleaning to drill needle group, the lifting baseplate is connected for adjusting the height -adjusting module of cleaning, the cleaning module downstream is equipped with the collection module that carries out the collection to impurity, the utility model in the prior art needs to be designed, the clean wheel rotation cleans PCB drill needle blade part, repeatedly clamps and combines and clean, high -frequency vibration compressed air removes the static adsorption of micro drill needle on the thin chip, more reasonable dust collection mode, vertical negative pressure dust extraction, avoid dust raising to cause more micro drill needle static adsorption thin chip.

Description

Technical Field

[0001] This utility model relates to the field of PCB processing technology, and in particular to a highly efficient and comprehensive PCB micro-drill cleaning device. Background Technology

[0002] Printed circuit boards (PCBs) are core components of electronic devices. They serve as the supporting carrier for electronic components and a crucial hub for electrical connections. Their manufacturing quality directly determines the performance and stability of electronic devices. During PCB manufacturing, numerous circular holes with diameters of 0.1-3.0 mm are machined on the board using PCB drill bits to secure the electronic components and ensure electrical conductivity. Therefore, the machining accuracy of the PCB drill bits plays a decisive role in the PCB yield rate.

[0003] During the drilling process, the cutting edge of a PCB drill bit is prone to wear due to continuous friction with the board material. A drill bit can typically have its lifespan extended by repeatedly sharpening it five times. However, before the sharpening process begins, the cutting edge and chip removal groove of the drill bit must be thoroughly cleaned. This is because dust and tangled cutting chips adhering to the cutting edge and chip removal groove can interfere with the vision inspection system of the grinding machine, making it unable to accurately determine the tip angle of the cutting edge, thus affecting the sharpening accuracy. It can also cause the vision inspection system to directly determine the drill bit as "NG (unacceptable)," preventing the drill bit from entering the grinding process and ultimately reducing the overall grinding efficiency.

[0004] Currently, there are many shortcomings in the industry's cleaning methods for PCB drill bits: traditional cleaning methods mostly use a single brush or a simple air blowing device, which is difficult to effectively remove the deep-seated cutting chips embedded in the chip removal groove, resulting in incomplete cleaning; at the same time, existing air blowing devices are mostly atmospheric pressure blowing, which cannot remove the thin chips attracted by electrostatic electricity on the surface of the drill bit, and dust is easily generated during the cleaning process. The dust raised can be re-attracted by the electrostatic electricity of the drill bit, forming secondary pollution; in addition, the dust collection method is not designed reasonably, and side dust extraction is mostly used, which has low dust extraction efficiency and further aggravates the dust problem. As a result, the cleaning effect is difficult to meet the precision requirements before sharpening, which restricts the reusability of PCB drill bits and the subsequent drilling quality.

[0005] Based on this, a highly efficient and comprehensive PCB micro-drill cleaning device is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0006] The purpose of this invention is to provide a highly efficient and comprehensive PCB micro-drill cleaning device, which solves the problem of inconvenient cleaning in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A highly efficient and comprehensive PCB micro-drill cleaning device includes a lifting base plate, an outer shell at the upper end of the lifting base plate, a cleaning port at the upper end of the outer shell plate for easy insertion of the drill bit assembly, a high-frequency air knife assembly for cleaning the drill bit assembly at the position of the outer shell plate, a cleaning module for cleaning the drill bit assembly at the upper end of the lifting base plate, a height adjustment module for adjusting the cleaning height connected to the lifting base plate, and a collection module for collecting impurities downstream of the cleaning module.

[0009] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0010] In one alternative embodiment: the cleaning module includes two adjustment base plates, each adjustment base plate having a mounting vertical plate at its upper end, and a cleaning wheel rotatably mounted on the upper end of each of the two mounting vertical plates, forming a cleaning gap between the two cleaning wheels. The two adjustment base plates are connected to a gap adjustment component for adjusting the distance between them, and the cleaning wheels are connected to a cleaning drive component for rotating them.

[0011] In one alternative embodiment: the collection module includes a collection hopper disposed inside the housing, the upper end of the collection hopper being connected to the top of the housing, displacement notches on both sides of the collection hopper facilitating the movement of cleaning wheels, a filter channel at the lower end of the collection hopper, a detachable filter plate being disposed in the filter channel for filtering impurities, a feeding cylinder at the lower end of the filter channel, an exhaust notch on the lifting base plate, a semi-circular opening corresponding to the exhaust notch on the relative position of the adjusting slider, the lower end of the feeding cylinder being connected to an air duct via a hose clamp, the other end of the air duct being connected to a filtration device, and the exhaust end of the filtration device being connected to an exhaust fan.

[0012] In one alternative: the cleaning drive includes a second transmission wheel disposed at the end of the cleaning wheel, a cleaning motor is fixedly disposed at the lower end of the mounting plate, a first transmission wheel is disposed at the output end of the cleaning motor, and the first transmission wheel and the second transmission wheel are connected by belt drive.

[0013] In one alternative: the mounting plate is provided with a tensioning element, the tensioning element includes a side sliding opening provided on the mounting plate, an auxiliary slider is slidably provided at the side sliding opening, a limiting bolt is provided on the auxiliary slider to lock its position, and a tensioning wheel that abuts the belt is rotatably provided on the auxiliary slider.

[0014] In one alternative: the spacing adjustment assembly includes a spacing adjustment slider disposed at the lower end of the adjustment base plate, two spacing adjustment sliders are threadedly disposed on the spacing adjustment slide rail, the two ends of the spacing adjustment slide rail are rotatably connected to the fixed block on the lifting base plate, and the end of the spacing adjustment slide rail is drivenly connected to the output end of the spacing adjustment motor through a spacing adjustment transmission component.

[0015] In one alternative embodiment: the height adjustment module includes a mounting side plate, which is fixedly connected to a wall or base. Two lifting guide rails are fixedly provided on the surface of the mounting side plate. A lifting slider is slidably provided on the lifting guide rails. A lifting threaded block is fixedly provided at the center of the lifting slider. A lifting screw is threaded on the lifting threaded block. The lower end of the lifting screw is connected to a lifting motor for driving its rotation. The lifting motor is fixed on the lower side of the mounting side plate. The outer side of the lifting slider is connected to the lifting base plate.

[0016] In one alternative: the high-frequency air knife assembly consists of an air knife and a high-frequency solenoid valve assembly.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model is designed to meet existing needs. The cleaning wheel rotates to clean the cutting edge of the PCB drill bit, and the repeated clamping and pulling down cleaning is used. High-frequency vibration and compressed air remove the thin debris attracted by electrostatics on the micro drill bit. It is a more reasonable dust collection method with vertical negative pressure dust extraction to avoid dust causing more thin debris attracted by electrostatics on the micro drill bit. Attached Figure Description

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

[0020] Figure 2 This is a schematic diagram of the cleaning drive component of this utility model.

[0021] Figure 3 This is a schematic diagram of the collection module structure of this utility model.

[0022] Figure 4 This is a schematic diagram of the height adjustment module structure of this utility model.

[0023] Figure 5 This is a schematic diagram of the cleaning module structure of this utility model.

[0024] Reference numerals in the attached drawings: 100 for the outer casing, 101 for the cleaning port;

[0025] High-frequency air knife assembly 200;

[0026] Lifting base plate 300, adjustable slider 301, adjustable slide rail 302, first transmission wheel 303, tension wheel 304, mounting vertical plate 305, second transmission wheel 306, cleaning motor 307, filter plate 308, collection hopper 309, cleaning wheel 310, adjusting base plate 311, lifting slider 312, and feeding cylinder 313;

[0027] Adjustable pitch motor 400, adjustable pitch transmission component 401;

[0028] Install side plate 500, lifting motor 501, lifting screw 502, lifting guide rail 503, lifting threaded block 504;

[0029] Drill bit assembly 600. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] like Figures 1-5 As shown, this utility model embodiment provides a highly efficient and comprehensive PCB micro-drill cleaning device, including a lifting base plate 300. The upper end of the lifting base plate 300 is provided with a housing 100. The upper end of the housing 100 is provided with a cleaning port 101 for easy insertion of the drill bit assembly 600. The housing 100 is provided with a high-frequency air knife assembly 200 for cleaning the drill bit assembly 600. The upper end of the lifting base plate 300 is provided with a cleaning module for cleaning the drill bit assembly 600. The lifting base plate 300 is connected to a height adjustment module for adjusting the cleaning height. Downstream of the cleaning module is a collection module for collecting impurities. The collection module can collect the cleaned impurities for easy subsequent cleaning operations.

[0032] The cleaning module includes two adjusting base plates 311. Each adjusting base plate 311 has a mounting vertical plate 305 on its upper end. Each of the two mounting vertical plates 305 has a cleaning wheel 310 rotatably mounted on its upper end. The two cleaning wheels 310 form a cleaning gap. The two adjusting base plates 311 are connected to a gap adjustment component for adjusting the distance between them. The distance adjustment component can adjust the distance between the two cleaning wheels 310. The cleaning wheels 310 are connected to a cleaning drive component for rotating them.

[0033] The collection module includes a collection hopper 309 disposed inside the outer casing 100. The upper port of the collection hopper 309 is connected to the top of the inner casing 100. Displacement notches are provided on both sides of the collection hopper 309 to facilitate the movement of the cleaning wheel 310. A filter channel is provided at the lower end of the collection hopper 309, and a filter plate 308 is detachably installed in the filter channel. The filter plate 308 prevents the blower from being damaged by a falling needle. A feed cylinder 313 is provided at the lower end of the filter channel. An exhaust notch is provided on the lifting base plate 300, and the adjusting slider 301 is positioned relative to it. The semi-circular opening corresponding to the exhaust port, the lower end of the feeding cylinder 313 is connected to the air duct through the hose clamp, the other end of the air duct is connected to the filter equipment, the air extraction end of the filter equipment is connected to the exhaust fan, when the operation is carried out, the exhaust equipment generates negative pressure, the high frequency air knife assembly 200 is matched with the cleaning module to clean the drill bit assembly 600, the impurities generated during cleaning are collected by the collection hopper 309, the airflow passes through the filter plate 308, the setting of the filter equipment, the dust will not be directly discharged into the working space, which is convenient for cleaning, just take out the bucket and empty it, which is convenient for observing the storage status and handling dust collection;

[0034] The cleaning drive includes a second transmission wheel 306 disposed at the end of the cleaning wheel 310. A cleaning motor 307 is fixedly disposed at the lower end of the mounting plate 305. A first transmission wheel 303 is disposed at the output end of the cleaning motor 307. The first transmission wheel 303 and the second transmission wheel 306 are connected by belt drive. The cleaning motor 307 drives the first transmission wheel 303 to rotate. The first transmission wheel 303 drives the second transmission wheel 306 to rotate via the belt. The second transmission wheel 306 drives the cleaning wheel 310 to rotate. The two cleaning wheels 310 rotate in opposite directions so as to convey the cleaned impurities downward.

[0035] The mounting vertical plate 305 is provided with a tensioning component, which includes a side sliding opening on the mounting vertical plate 305. An auxiliary slider is slidably provided at the side sliding opening. The auxiliary slider is provided with a limiting bolt that locks its position. A tensioning wheel 304 that presses against the belt is rotatably provided on the auxiliary slider. By moving the tensioning wheel 304, the belt is kept in a tensioned state, which facilitates later disassembly and maintenance.

[0036] The spacing adjustment assembly includes a spacing adjustment slider 301 disposed at the lower end of the adjustment base plate 311. Two spacing adjustment sliders 301 are threaded onto a spacing adjustment slide rail 302. The two ends of the spacing adjustment slide rail 302 are rotatably connected to a fixed block on the lifting base plate 300. The end of the spacing adjustment slide rail 302 is connected to the output end of the spacing adjustment motor 400 via a spacing adjustment transmission component 401. The spacing adjustment transmission component 401 is disposed on the outside of the housing 100. The lifting base plate 300 is disposed at the lower end of the spacing adjustment motor 400. Driven by the spacing adjustment motor 400, the spacing adjustment transmission component 401 drives the spacing adjustment slide rail 302 to rotate. The spacing adjustment slide rail 302 and the two spacing adjustment sliders 301 rotate relative to each other. Under the action of the threads, the two mounting vertical plates 305 move closer or further apart, providing power for adjusting the cleaning gap.

[0037] The height adjustment module includes a mounting side plate 500, which is fixedly connected to a wall or base. Two lifting guide rails 503 are fixedly mounted on the surface of the mounting side plate 500. A lifting slider 312 slides on the lifting guide rails 503. A lifting threaded block 504 is fixedly mounted at the center of the lifting slider 312. A lifting screw 502 is threaded onto the lifting threaded block 504. The lower end of the lifting screw 502 is connected to a lifting motor 501 for driving its rotation. The lifting motor 501 is fixed to the lower side of the mounting side plate 500. The outer side of the lifting slider 312 is connected to a lifting base plate 300. Driven by the lifting motor 501, the lifting screw 502 and the lifting threaded block 504 rotate relative to each other. Under the action of the thread, the lifting threaded block 504 slides along the lifting guide rails 503, and the height of the lifting base plate 300 outside the lifting threaded block 504 also changes accordingly, thereby adjusting the cleaning height of the cleaning module.

[0038] The high-frequency air knife assembly 200 consists of an air knife and a high-frequency solenoid valve assembly. Its function is to blow off the thin layer of electrostatically attracted debris from the micro drill bit by repeatedly ejecting compressed air at high frequency during the time the robotic arm lifts the gripper.

[0039] Working principle: In actual use, the drill bit assembly 600 is placed at the cleaning port 101. The high-frequency air knife assembly 200 operates, and compressed air blows off the thin debris electrostatically adsorbed on the micro drill bit. Driven by the lifting motor 501, the lifting screw 502 and the lifting threaded block 504 rotate relative to each other. Under the action of the thread, the lifting threaded block 504 slides along the lifting guide rail 503. The height of the lifting base plate 300 on the outside of the lifting threaded block 504 also changes accordingly, thereby adjusting the cleaning height of the cleaning module. The cleaning module cleans the drill bit assembly 600. Driven by the pitch adjustment motor 400, the pitch adjustment transmission component 401 drives the pitch adjustment slide rail 302 to rotate. The pitch adjustment slide rail 302 rotates relative to the two pitch adjustment sliders 301. Under the action of the thread, the two mounting vertical plates 305 move closer to each other, so that the cleaning gap corresponds to the drill bit assembly 600. The impurities generated during cleaning are collected by the filtration equipment and finally discharged, reducing environmental pollution.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A highly efficient and comprehensive PCB micro-drill cleaning device, comprising a lifting base plate (300), wherein the upper end of the lifting base plate (300) is provided with a housing (100), characterized in that: The upper end of the outer shell (100) is provided with a cleaning port (101) for easy insertion of the drill bit assembly (600). The outer shell (100) is provided with a high-frequency air knife assembly (200) for cleaning the drill bit assembly (600). The upper end of the lifting base plate (300) is provided with a cleaning module for cleaning the drill bit assembly (600). The lifting base plate (300) is connected to a height adjustment module for adjusting the cleaning height. Downstream of the cleaning module is a collection module for collecting impurities.

2. The high-efficiency integrated PCB micro-drill cleaning device according to claim 1, characterized in that, The cleaning module includes two adjustment base plates (311), each adjustment base plate (311) has a mounting vertical plate (305) at its upper end, and a cleaning wheel (310) is rotatably mounted on the upper end of each of the two mounting vertical plates (305). A cleaning gap is formed between the two cleaning wheels (310). The two adjustment base plates (311) are connected to a gap adjustment component for adjusting the distance between them, and the cleaning wheel (310) is connected to a cleaning drive component for rotating it.

3. The high-efficiency integrated PCB micro-drill cleaning device according to claim 2, characterized in that, The collection module includes a collection hopper (309) set inside the outer shell (100). The upper port of the collection hopper (309) is connected to the top inside the outer shell (100). The collection hopper (309) has displacement notches on both sides to facilitate the movement of the cleaning wheel (310). The lower end of the collection hopper (309) is provided with a filter channel. A filter plate (308) is detachably provided in the filter channel. Impurities are filtered through the filter plate (308). The lower end of the filter channel is provided with a feeding cylinder (313). The lifting base plate (300) is provided with an exhaust notch. The adjustable slider (301) is provided with a semi-circular opening corresponding to the exhaust notch. The lower end of the feeding cylinder (313) is connected to the air duct through a hose clamp. The other end of the air duct is connected to the filtration device. The exhaust end of the filtration device is connected to an exhaust fan.

4. The high-efficiency integrated PCB micro-drill cleaning device according to claim 2, characterized in that, The cleaning drive includes a second transmission wheel (306) disposed at the end of the cleaning wheel (310), a cleaning motor (307) fixedly disposed at the lower end of the mounting plate (305), and a first transmission wheel (303) disposed at the output end of the cleaning motor (307). The first transmission wheel (303) and the second transmission wheel (306) are connected by belt drive.

5. The high-efficiency integrated PCB micro-drill cleaning device according to claim 4, characterized in that, The mounting vertical plate (305) is provided with a tensioning member, which includes a side sliding opening provided on the mounting vertical plate (305). An auxiliary slider is slidably provided at the side sliding opening position. A limiting bolt is provided on the auxiliary slider to lock its position. A tensioning wheel (304) that abuts against the belt is rotatably provided on the auxiliary slider.

6. The high-efficiency integrated PCB micro-drill cleaning device according to claim 2, characterized in that, The spacing adjustment assembly includes a spacing adjustment slider (301) disposed at the lower end of the adjustment base plate (311), two spacing adjustment sliders (301) are threaded onto the spacing adjustment slide rail (302), the two ends of the spacing adjustment slide rail (302) are rotatably connected to the fixed block on the lifting base plate (300), and the end of the spacing adjustment slide rail (302) is connected to the output end of the spacing adjustment motor (400) through the spacing adjustment transmission component (401).

7. The high-efficiency integrated PCB micro-drill cleaning device according to claim 1, characterized in that, The height adjustment module includes a mounting side plate (500), which is fixedly connected to a wall or base. Two lifting guide rails (503) are fixedly provided on the surface of the mounting side plate (500). A lifting slider (312) is slidably provided on the lifting guide rails (503). A lifting threaded block (504) is fixedly provided at the center of the lifting slider (312). A lifting screw (502) is threaded on the lifting threaded block (504). The lower end of the lifting screw (502) is connected to a lifting motor (501) for driving its rotation. The lifting motor (501) is fixed on the lower side of the mounting side plate (500). The outer side of the lifting slider (312) is connected to the lifting base plate (300).

8. The high-efficiency integrated PCB micro-drill cleaning device according to claim 1, characterized in that, The high-frequency air knife assembly (200) consists of an air knife and a high-frequency solenoid valve assembly.

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