Circuit board milling device and milling machine

Abstract

The utility model discloses a kind of circuit board milling device and milling machine, and circuit board milling device includes pressing mechanism, chip suction mechanism and grinding mechanism, and pressing mechanism includes pressing column and the pressing brush of being set at the bottom end of pressing column, and the first chip suction passage is formed in the hollow inside pressing column, and the pressing brush includes multiple brush groups, and the gap between each brush group forms multiple second chip suction passages;Chip suction mechanism is communicated with the first chip suction passage;Grinding mechanism includes milling cutter, and milling cutter is set through the first chip suction passage. Milling machine applies the above-mentioned one kind of circuit board milling device, and by setting second chip suction passage, chip suction effect is good, and avoid scratching circuit board surface.

Description

Technical Field

[0001] This utility model relates to the field of printed circuit board manufacturing technology, and in particular to a circuit board router and router machine. Background Technology

[0002] Routing is a crucial step in PCB (Printed Circuit Board) manufacturing. A milling cutter creates pre-defined patterns on the circuit board, allowing for the fabrication of holes, grooves, and other structures of various shapes and sizes according to the design. Routing generates a significant amount of debris. If this debris is not removed promptly, it can accumulate in the processing area, interfering with subsequent processing, altering the tool's trajectory, causing tool wear, and even scratching the circuit board surface, thus affecting the board's quality. Current PCB routing devices have poor debris removal capabilities, easily leaving debris on the circuit board and the pressure brush, which can scratch the circuit board surface and negatively impact processing quality. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a circuit board router and a router machine, wherein the router machine utilizes the circuit board router provided in this application. The circuit board router has good chip removal effect, preventing scratches on the circuit board surface.

[0004] In a first aspect, a circuit board routing device according to an embodiment of the present utility model includes:

[0005] The pressing mechanism includes a pressing column and a pressing brush disposed at the bottom of the pressing column. The inside of the pressing column is hollow to form a first dust suction channel. The pressing brush includes multiple brush groups, and the gaps between the brush groups form multiple second dust suction channels.

[0006] The dust collection mechanism is connected to the first dust collection channel;

[0007] The grinding mechanism includes a milling cutter that passes through the first chip suction channel.

[0008] According to an embodiment of the present invention, a circuit board routing device has at least the following beneficial effects: the negative pressure component draws air in the exhaust pipe, thereby generating negative pressure in the first and second chip suction channels. The airflow flows from the outside of the pressing brush through the second chip suction channel to the first chip suction channel, and then to the exhaust pipe. During the airflow, it can carry away the debris generated by the routing tool. The gaps between each brush group form multiple second chip suction channels, that is, each brush group is surrounded by a second chip suction channel. During the chip suction process, each second chip suction channel generates a chip suction airflow, and the debris adhering to the brush group can be easily carried away by the airflow of the surrounding second chip suction channels. The second chip suction channels can also adsorb the debris on the outside of the pressing brush, and can suck away the debris scattered on the outside of the pressing brush. The first chip suction channel can suck away the debris falling below the first chip suction channel and the debris sucked in by the second chip suction channel, avoiding leaving debris on the circuit board or the pressing brush. The chip suction effect is good, and it avoids scratching the surface of the circuit board.

[0009] According to an embodiment of the present invention, a circuit board router device includes a pressure brush that further includes a circular ring connector, and multiple brush groups are connected to the bottom end of the circular ring connector.

[0010] According to an embodiment of the present invention, a circuit board routing device includes a brush assembly comprising soft rubber strips, wherein multiple soft rubber strips are arranged at intervals.

[0011] According to an embodiment of the present invention, a circuit board routing device comprises multiple brush groups evenly spaced in a ring around the axis of a circular connector.

[0012] According to an embodiment of the present invention, a circuit board routing device has multiple layers of brushes arranged from the inside out.

[0013] According to an embodiment of the present invention, a circuit board routing device is provided with a retaining ring on the annular connector and a retaining groove on the bottom end of the pressing column, wherein the retaining ring and the retaining groove are matched and connected.

[0014] According to an embodiment of the present invention, a circuit board routing device is provided in which the annular connector is further provided with a first conical guide portion and the bottom end of the pressing column is further provided with a second conical guide portion, and the first conical guide portion and the second conical guide portion are matched with each other.

[0015] According to an embodiment of the present invention, a circuit board routing device includes a clamping mechanism that further includes a clamping seat and an elastic element. The elastic element is disposed between the bottom end of the clamping seat and the top end of the clamping column. A first connecting cylinder is disposed through the inside of the clamping seat, and a limiting groove is provided at the bottom end of the first connecting cylinder. A second connecting cylinder is disposed through the inside of the clamping column, and a limiting protrusion is provided at the top end of the second connecting cylinder. The first connecting cylinder can be matched and movably sleeved on the outside of the second connecting cylinder. The limiting groove and the limiting protrusion cooperate to prevent the second connecting cylinder from detaching from the first connecting cylinder.

[0016] According to an embodiment of the present invention, a circuit board routing device is provided, wherein the elastic element is a spring, and the spring is sleeved outside the second connecting cylinder.

[0017] Secondly, a router according to an embodiment of the present invention utilizes the aforementioned circuit board router device.

[0018] A gong machine according to an embodiment of the present utility model has at least the following beneficial effects:

[0019] The negative pressure component draws air from the exhaust duct, creating negative pressure in the first and second chip suction channels. Airflow flows from the outside of the pressing brush through the second chip suction channel to the first chip suction channel, and then back to the exhaust duct. During this airflow, debris generated by the router blade is carried away. Multiple second chip suction channels are formed between the gaps between the brush groups, meaning each brush group has a second chip suction channel around its perimeter. During chip suction, airflow is generated in each second chip suction channel, easily carrying away debris adhering to the brush group. The second chip suction channels also adsorb debris from the outside of the pressing brush, removing debris scattered onto it. The first chip suction channel removes debris falling below it as well as debris sucked in by the second chip suction channel, preventing debris from remaining on the circuit board or the pressing brush. This effective chip suction avoids scratching the circuit board surface, improving the overall working quality of the router and thus enhancing the quality of the circuit board router operation.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0022] Figure 1 This is a schematic diagram of the structure of a circuit board routing device according to an embodiment of the present utility model;

[0023] Figure 2 This is a cross-sectional view of a circuit board routing device according to an embodiment of the present utility model;

[0024] Figure 3 This is a bottom view of the pressing brush structure of a circuit board router device according to an embodiment of the present invention.

[0025] Figure 4 for Figure 2 A magnified view of a portion of point A in the middle;

[0026] Figure 5for Figure 2 A magnified view of a portion of point B in the diagram.

[0027] Explanation of reference numerals in the attached figures:

[0028] Clamping column 100; First chip suction channel 110; Slot 120; Second conical guide part 130; Second connecting cylinder 140; Limiting protrusion 150; Third connecting cylinder 160;

[0029] 200; 210; 211; 220; 230; 231; 232; 232; 200; 230; 231; 232; 230; 230; 231; 232;

[0030] Clamping seat 300; First connecting cylinder 310; Limiting groove 320;

[0031] Elastic element 400;

[0032] 500 dust collection mechanism; 510 negative pressure component; 520 exhaust duct;

[0033] Grinding mechanism 600; milling cutter 610; drive assembly 620; first drive component 621; second drive component 622. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0035] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional 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 limitations on this utility model.

[0036] In the description of a utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first" and "second" are used, they are merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or the order of the indicated technical features.

[0037] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0038] Routing is a crucial step in PCB manufacturing. A router cutter creates pre-defined patterns on the PCB, allowing for the fabrication of holes, grooves, and other structures of various shapes and sizes according to the design. This process generates a significant amount of debris. Current router devices have poor debris removal capabilities, leading to debris easily adhering to the pressure brush or remaining on the PCB. Furthermore, the frequent movement of the pressure brush during routing can easily scratch the PCB surface, affecting the overall manufacturing quality.

[0039] Reference Figures 1 to 5 The arrow indicates the direction of airflow for dust collection. This embodiment of the invention provides a circuit board routing device, including: a pressing mechanism, a dust collection mechanism 500, and a grinding mechanism 600. The pressing mechanism includes a pressing column 100 and a pressing brush 200 disposed at the bottom of the pressing column 100. The pressing column 100 is hollow, forming a first dust collection channel 110. The pressing brush 200 includes multiple brush groups 210, and the gaps between the brush groups 210 form multiple second dust collection channels 220. The dust collection mechanism 500 is connected to the first dust collection channel 110. Specifically, the dust collection mechanism 500 includes a negative pressure component 510 and an exhaust fan. The exhaust pipe 520 is connected at one end to the negative pressure component 510 and at the other end to the clamping column 100. The exhaust pipe 520 is connected to the first chip suction channel 110. Specifically, the negative pressure component 510 is an exhaust fan that can generate negative pressure in the exhaust pipe 520, thereby generating negative pressure in the first chip suction channel 110. The grinding mechanism 600 includes a milling cutter 610, which is disposed through the first chip suction channel 110. Specifically, the grinding mechanism 600 also includes a drive component 620, which is mounted on the clamping mechanism. The output end of the drive component 620 is connected to the milling cutter 610 for transmission.

[0040] During operation, the clamping mechanism presses the circuit board downwards to prevent it from shaking. The drill bit of the milling cutter 610 in the grinding mechanism 600 drills below the first chip suction channel 110. Most of the chips generated during drilling fall below the first chip suction channel 110, that is, inside the clamping brush 200, while a small portion is scattered onto the clamping brush 200, inside the second chip suction channel 220, and outside the clamping brush 200. The negative pressure component 510 draws air from the exhaust pipe 520, thereby generating negative pressure in the first chip suction channel 110 and the second chip suction channel 220. The airflow flows from the outside of the clamping brush 200 through the second chip suction channel 220 to the first chip suction channel 110, and then to the exhaust pipe 520. During the airflow process, the chips generated by the milling cutter 610 are carried away.

[0041] The gaps between each brush group 210 form multiple second dust suction channels 220, meaning that each brush group 210 is surrounded by a second dust suction channel 220. During the dust suction process, each second dust suction channel 220 generates a dust suction airflow, and the debris adhering to the brush group 210 can be easily carried away by the airflow of the surrounding second dust suction channels 220. The second dust suction channels 220 can also adsorb the debris on the outside of the pressing brush 200, and can suck up the debris scattered on the outside of the pressing brush 200. The first dust suction channel 110 can suck up the debris that falls below the first dust suction channel 110 and the debris sucked up by the second dust suction channel 220. The dust suction effect is good, avoiding leaving debris on the circuit board or the pressing brush 200, avoiding scratching the surface of the circuit board, and improving the processing quality of the circuit board.

[0042] As a preferred option, the gap between each brush group 210 is not less than 1.5 mm, that is, the minimum width of the second dust suction channel 220 is not less than 1.5 mm, to ensure reliable airflow for dust suction.

[0043] Understandably, referring to Figure 2 In some other embodiments, the drive assembly 620 includes a first drive member 621 and a second drive member 622. The output end of the second drive member 622 is connected to the milling cutter 610 for driving the milling cutter 610 to rotate. The output end of the first drive member 621 is connected to the second drive member 622 by a threaded drive, and the second drive member 622 is driven to move up and down by the principle of screw drive.

[0044] According to some embodiments of this application, the clamping brush 200 also includes a circular ring connector 230, with multiple brush groups 210 connected to the bottom end of the circular ring connector 230, and a screed 610 penetrating through the circular ring connector 230. The circular ring connector 230 makes it easier to replace the clamping brush 200.

[0045] Furthermore, the brush assembly 210 includes soft rubber strips 211, with multiple soft rubber strips 211 arranged at intervals. Using the soft rubber strips 211 as brushes provides greater softness and can further prevent scratching the circuit board surface during the movement and pressing of the brush 200.

[0046] As a preferred option, the soft rubber strip 211 has a diameter of 0.15 mm, which provides greater flexibility.

[0047] Furthermore, referring to Figure 3 Multiple brush groups 210 are evenly spaced in a ring around the axis of the annular connector 230 to evenly distribute the pressing force of the brush 200 on the circuit board and improve the pressing effect.

[0048] Furthermore, the brush assembly 210 has multiple layers arranged from the inside out. As a preferred embodiment, refer to... Figure 3 The brush assembly 210 has three layers arranged from the inside out, which further disperses the pressure of the brush 200 on the circuit board, reduces the pressure of a single brush assembly 210 on the circuit board, and further prevents the surface of the circuit board from being scratched.

[0049] According to some embodiments of this application, the annular connector 230 is provided with a retaining ring 231, and the bottom end of the clamping column 100 is provided with a retaining groove 120. The retaining ring 231 and the retaining groove 120 are matched and connected to facilitate the disassembly and connection of the clamping brush 200 and the clamping column 100.

[0050] Furthermore, the annular connector 230 is also provided with a first conical guide portion 232, and the bottom end of the clamping column 100 is also provided with a second conical guide portion 130. The first conical guide portion 232 and the second conical guide portion 130 match each other to provide guidance for the connection between the clamping brush 200 and the clamping column 100, thereby improving the installation efficiency of the clamping brush 200.

[0051] According to some embodiments of this application, the clamping mechanism further includes a clamping seat 300 and an elastic element 400. The elastic element 400 is disposed between the bottom end of the clamping seat 300 and the top end of the clamping column 100. A first connecting cylinder 310 is disposed through the inside of the clamping seat 300 and is connected to the clamping seat 300. A limiting groove 320 is provided at the bottom end of the first connecting cylinder 310. A second connecting cylinder 140 is disposed through the inside of the clamping column 100 and is connected to the clamping column 100. A limiting protrusion 150 is provided at the top end of the second connecting cylinder 140. The first connecting cylinder 310 can be movably fitted onto the outside of the second connecting cylinder 140. The limiting groove 320 and the limiting protrusion 150 cooperate to prevent the second connecting cylinder 140 from detaching from the first connecting cylinder 310. By providing the elastic element 400, the buffering effect when the clamping mechanism presses the circuit board downward is further enhanced, and the surface of the circuit board is further prevented from being scratched.

[0052] Furthermore, the elastic element 400 is a spring, which is sleeved on the outside of the second connecting cylinder 140.

[0053] Understandably, referring to Figure 2 In some other embodiments, a third connecting cylinder 160 is also provided inside the clamping column 100. One end of the third connecting cylinder 160 is connected to the second connecting cylinder 140, and the other end of the third connecting cylinder 160 is connected to the exhaust pipe 520. The second connecting cylinder 140, the third connecting cylinder 160 and the exhaust pipe 520 are connected in sequence.

[0054] This application also provides a router using a circuit board routing device, including the circuit board routing device, a logic control device (not shown), a planar position adjustment device (not shown), and a position detection device (not shown). The position detection device is electrically connected to the logic control device and is used to detect the orientation of the circuit board. The logic control device is electrically connected to both the circuit board routing device and the planar position adjustment device and is used to control the operation of the planar position adjustment device and the circuit board routing device. The planar position adjustment device is connected to the circuit board routing device and can adjust the position of the circuit board routing device in the planar direction to realize the routing operation. This avoids leaving debris on the circuit board or on the pressure brush 200, has a good debris suction effect, avoids scratching the surface of the circuit board, and improves the overall working quality of the router.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A circuit board routing device, characterized in that, include: The clamping mechanism includes a clamping column (100) and a clamping brush (200) disposed at the bottom end of the clamping column (100). The clamping column (100) is hollow inside to form a first dust suction channel (110). The clamping brush (200) includes multiple brush groups (210), and the gaps between each brush group (210) form multiple second dust suction channels (220). The chip suction mechanism (500) is connected to the first chip suction channel (110); The grinding mechanism (600) includes a milling cutter (610) which is disposed through the first chip suction channel (110).

2. The circuit board routing device according to claim 1, characterized in that, The pressing brush (200) also includes a ring connector (230), and a plurality of the brush assemblies (210) are connected to the bottom end of the ring connector (230).

3. A circuit board routing device according to claim 2, characterized in that, The brush assembly (210) includes soft rubber strips (211), and a plurality of the soft rubber strips (211) are arranged at intervals.

4. A circuit board routing device according to claim 3, characterized in that, The multiple brush assemblies (210) are evenly spaced in a ring around the axis of the annular connector (230).

5. A circuit board routing device according to claim 4, characterized in that, The brush assembly (210) has multiple layers arranged from the inside out.

6. A circuit board routing device according to claim 2, characterized in that, The annular connector (230) is provided with a retaining ring (231), and the bottom end of the clamping column (100) is provided with a retaining groove (120). The retaining ring (231) is matched and connected with the retaining groove (120).

7. A circuit board routing device according to claim 6, characterized in that, The annular connector (230) is also provided with a first conical guide portion (232), and the bottom end of the clamping column (100) is also provided with a second conical guide portion (130). The first conical guide portion (232) and the second conical guide portion (130) are matched with each other.

8. A circuit board routing device according to claim 1, characterized in that, The clamping mechanism further includes a clamping seat (300) and an elastic element (400). The elastic element (400) is disposed between the bottom end of the clamping seat (300) and the top end of the clamping column (100). A first connecting cylinder (310) is provided through the inside of the clamping seat (300). A limiting groove (320) is provided at the bottom end of the first connecting cylinder (310). A second connecting cylinder (140) is provided through the inside of the clamping column (100). A limiting protrusion (150) is provided at the top end of the second connecting cylinder (140). The first connecting cylinder (310) can be matched and movably sleeved on the outside of the second connecting cylinder (140). The limiting groove (320) and the limiting protrusion (150) cooperate to prevent the second connecting cylinder (140) from detaching from the first connecting cylinder (310).

9. A circuit board routing device according to claim 8, characterized in that, The elastic element (400) is a spring, which is sleeved on the outside of the second connecting cylinder (140).

10. A gong machine, characterized in that, Includes a circuit board routing device as described in any one of claims 1 to 9.

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