PCB processing equipment

Abstract

The utility model relates to a kind of PCB processing equipment, comprising: main shaft assembly, for PCB processing;Tool, set in main shaft assembly;Cleaning assembly, in the moving range of main shaft assembly, cleaning assembly includes cleaning seat, and the flexible cleaning piece of setting in cleaning seat, flexible cleaning piece is set along horizontal direction or vertical direction, cleaning seat has cleaning cavity, to accommodate silk winding, when cleaning, main shaft assembly drives tool and flexible cleaning piece contact, flexible cleaning piece and tool relative rotation;The cleaning cavity is communicated with chip removal channel.The utility model can effectively clean the silk winding on the surface of tool, solve the processing defect problem caused by silk winding in PCB processing process.

Description

Technical Field

[0001] This utility model relates to the field of PCB processing technology, and in particular to a PCB processing equipment. Background Technology

[0002] In PCB manufacturing, a spindle assembly drives a cutting tool to perform drilling and other operations on the PCB surface. Wire entanglement is a common machining defect during PCB drilling, directly affecting drilling quality, drill bit life, and production efficiency. Wire entanglement manifests as chips (such as copper, aluminum, or resin wires) wrapping around the drill bit's helical grooves or cutting edges, leading to poor chip removal, a sudden increase in axial force, and consequently, hole wall damage and drill bit breakage. Existing methods for removing residual foreign matter from the drill bit primarily involve blowing it with compressed air, but these methods are ineffective and fail to completely remove the entangled wire. Utility Model Content

[0003] One objective of this invention is to solve the existing technical problems and provide a PCB processing equipment that can solve the problem of wire entanglement in cutting tools.

[0004] To achieve the objectives of this utility model, the embodiments of this utility model adopt the following technical solutions:

[0005] A PCB processing equipment, comprising:

[0006] Spindle assembly, used for PCB manufacturing;

[0007] The cutting tool is mounted on the spindle assembly;

[0008] The cleaning assembly is located within the moving range of the spindle assembly. The cleaning assembly includes a cleaning seat and a flexible cleaning element disposed on the cleaning seat. The flexible cleaning element is disposed in a horizontal or vertical direction. The cleaning seat has a cleaning cavity to accommodate the tangled wire. During cleaning, the spindle assembly drives the tool to contact the flexible cleaning element, and the flexible cleaning element rotates relative to the tool. The cleaning cavity is connected to the chip removal channel.

[0009] In some embodiments, there are at least two flexible cleaning elements, which are spaced apart in the same direction, and the cutting tool is located between the flexible cleaning elements such that each flexible cleaning element is in contact with the cutting tool.

[0010] In some embodiments, when the flexible cleaning element is arranged in a horizontal direction, its rotation axis is perpendicular to the axis of the tool; when the flexible cleaning element is arranged in a vertical direction, its rotation axis is parallel to the axis of the tool.

[0011] In some embodiments, the flexible cleaning component includes a rod and bristles. One end of the bristles is connected to the rod and is arranged radially along the rod. The end of the bristles away from the rod is a free end. The axis of rotation is the axis of the rod. During cleaning, the free end of the bristles contacts the blade.

[0012] In some embodiments, the chip removal channel is located on the side of the cleaning seat.

[0013] In some embodiments, the flexible cleaning element includes bristles located in a cleaning chamber. The cleaning seat has a sidewall, one end of the bristles is connected to the sidewall, and the other end is a free end. During cleaning, the blade extends into the cleaning chamber and contacts the free end of the bristles, with the bristles surrounding the blade.

[0014] In some embodiments, the rotation axis of the bristles coincides with the axis of the cutter, and the rotation direction of the bristles is the same as the rotation direction of the cutter, so as to facilitate the stripping of the filaments from the cutter.

[0015] In some embodiments, the chip removal channel is located at the bottom of the cleaning seat and is coaxial with the blade, and the brush bristles are integrally formed with the cleaning seat.

[0016] In some embodiments, at least one of the flexible cleaning element and the cutting tool is rotatable; when the flexible cleaning element is fixed, the spindle assembly drives the cutting tool to rotate forward or backward; when the cutting tool is fixed, the flexible cleaning element rotates.

[0017] In some embodiments, the cleaning component is disposed on a workbench, which is horizontally positioned and located below the spindle assembly.

[0018] This utility model has the following main advantages:

[0019] (1) By setting a cleaning component within the movement range of the spindle assembly, after the tool completes PCB processing, the spindle assembly can drive the tool to the cleaning component, so that the tool contacts the flexible cleaning component and generates relative rotation. The flexible cleaning component can effectively clean the wire wrapping on the tool surface, solving the processing defects caused by wire wrapping during PCB processing; (2) The cleaned-off wire will fall into the cleaning chamber of the cleaning seat and be discharged through the chip removal channel connected to the cleaning chamber, avoiding the accumulation of wire wrapping on the tool; (3) The flexible cleaning component can be set in the horizontal or vertical direction, and its relative position and rotation mode with the tool can be flexibly adjusted according to actual needs, enhancing the applicability and cleaning effect of the equipment. Other advantages of the present invention are described in the specific embodiments. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in 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.

[0021] Figure 1 This is a schematic diagram of the PCB processing equipment provided in Embodiment 1 of this utility model.

[0022] Figure 2 This is a schematic diagram of the cleaning component provided in Embodiment 1 of this utility model.

[0023] Figure 3 This is a schematic diagram of another cleaning component provided in Embodiment 1 of this utility model.

[0024] Figure 4 This is a schematic diagram of the cleaning component provided in Embodiment 2 of this utility model.

[0025] In the attached diagram: 100, spindle assembly; 200, cutting tool; 300, cleaning assembly; 400, worktable; 310, cleaning seat; 311, cleaning chamber; 312, chip removal channel; 313, side wall; 320, flexible cleaning component; 321, rod; 322, brush bristles. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0027] In this embodiment, "several" and "more than" refer to two or more. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] <Example 1>

[0030] This embodiment provides a PCB processing device, which primarily operates by using cutting tools to process PCBs. Specifically, this device encompasses various types, such as common drilling machines, which can precisely drill the required holes in PCBs; and drilling and routing machines, which can perform more complex processing operations on PCBs, such as routing specific shapes, to meet different PCB processing needs.

[0031] like Figures 1 to 3As shown, a PCB processing device according to this embodiment includes a spindle assembly 100, a cutting tool 200, and a cleaning assembly 300. The spindle assembly 100 is used for PCB processing and enables the cutting tool to rotate, lift, and move. Specifically, the spindle assembly 100 drives the cutting tool 200 to perform PCB processing operations, enabling the cutting tool 200 to rotate at high speed and move in the X, Y, and Z directions to meet the needs of different PCB processing positions and processes. The cutting tool 200, as the processing component that directly contacts the PCB, is installed at the output end of the spindle assembly 100 and rotates with the drive of the spindle assembly 100, thereby performing drilling, milling, and other processing on the PCB board. The cleaning assembly 300 is located within the range covered by the movement path of the spindle assembly 100. Specifically, the cleaning assembly 300 is mounted on a worktable 400, which is horizontally positioned below the spindle assembly 100. The worktable 400 can be connected to a drive device, allowing it to move in the horizontal plane. By integrating the cleaning component 300 onto the worktable 400, the existing space layout of the equipment can be fully utilized, avoiding additional occupation of the processing area. Simultaneously, it ensures that the spindle assembly 100 can quickly move to the cleaning component 300 position for tool cleaning during processing intervals, effectively shortening non-processing time. When the tool 200 completes processing or during a processing interval, the spindle assembly 100 can move the tool 200 to the cleaning component 300 for cleaning. The cleaning component 300 includes a cleaning seat 310 and a flexible cleaning element 320 disposed on the cleaning seat 310. The cleaning seat 310 serves as the main structure of the cleaning component 300, and its interior forms a cleaning cavity 311 for collecting debris such as tangled fibers generated during the cleaning process. The flexible cleaning element 320 is mounted on the cleaning seat 310 and can be arranged horizontally or vertically according to actual cleaning needs. During cleaning, the spindle assembly 100 drives the cutter 200 to contact the flexible cleaning component 320. The flexible cleaning component 320 and the cutter 200 rotate relative to each other. The interaction force generated by the contact between the flexible cleaning component 320 and the cutter 200 effectively removes impurities such as filaments wrapped around the surface of the cutter 200. At the same time, the cleaning chamber 311 is connected to the chip removal channel 312, allowing the cleaned debris to be discharged from the cleaning assembly 300 in a timely manner through the chip removal channel 312, preventing debris from accumulating in the cleaning chamber 311 and affecting the subsequent cleaning effect.

[0032] In this embodiment, the flexible cleaning component 320 contacts the cutting tool through its soft portion. Compared to a rigid cleaning component, it can better adapt to objects of different shapes and surface structures during cleaning operations, and can more flexibly conform to the surface of the cutting tool, thereby effectively removing dirt, dust, and other impurities to achieve the ideal cleaning purpose; in addition, it will not cause wear to the cutting tool. At least one of the flexible cleaning component 320 and the cutting tool 200 is rotatable. The flexible cleaning component 320 can be fixed or rotatable. When the flexible cleaning component 320 is fixed, the cutting tool 200 is driven to rotate forward or backward by the spindle assembly 100 to remove tangled foreign objects. When the cutting tool 200 is fixed and cannot rotate, the flexible cleaning component 320 rotates to remove foreign objects from the cutting tool; the flexible cleaning component 320 and the cutting tool 200 can also rotate simultaneously to remove tangled foreign objects.

[0033] like Figure 2 As shown, furthermore, there are at least two flexible cleaning elements 320, which are spaced apart along the same direction. The cleaning effect is further improved by using multiple flexible cleaning elements 320. In this embodiment, two flexible cleaning elements 320 are symmetrically arranged on both sides of the cutter, parallel to each other and vertically arranged along the Z direction. The rotation axis R of the flexible cleaning element 320 is parallel to the axis M of the cutter 320. The cutter 200 is located between the flexible cleaning elements 320, ensuring that each flexible cleaning element 320 is in contact with the cutter. This multi-flexible cleaning element layout design allows for simultaneous cleaning of the cutter from multiple angles, improving cleaning efficiency and the uniformity of the cleaning effect. When there are multiple turns of wire wrapped around the outer surface of the cutter 200, the flexible cleaning elements 320 at different positions can act on the wire wrapping in different areas, avoiding cleaning dead zones. The spacing between adjacent flexible cleaning components can be adaptively adjusted according to the diameter of the cutting tool, ensuring that after the cutting tool 200 enters the cleaning area of ​​the flexible cleaning component 320, each flexible cleaning component can form a stable and effective contact pressure with the surface of the cutting tool, which ensures the cleaning force without causing excessive wear to the cutting tool.

[0034] like Figure 3As shown, in another embodiment, the flexible cleaning component 320 is arranged horizontally, and its rotation axis R is perpendicular to the axis M of the cutter 200. By arranging the flexible cleaning component 320 horizontally, the rotation axes of the two components are perpendicular to each other. During the cleaning process, when the cutter inserts between the flexible cleaning components, the rotation direction of the flexible cleaning component and the rotation direction of the cutter can intersect at an angle. This intersecting rotation can generate a spiral cleaning trajectory on the cutter surface. In particular, for the tangled wires in the spiral groove of the cutter, the vertical rotational force can peel them out of the groove, further improving the cleaning effect on complex-structured cutters. At the same time, the horizontally arranged flexible cleaning component can be operated from the side of the cleaning seat during installation and maintenance, making it easy to observe and replace the wear condition of the flexible cleaning component, reducing the difficulty of equipment maintenance.

[0035] like Figure 2 and Figure 3 As shown, the flexible cleaning component 320 includes a rod 321 and bristles 322. One end of the bristles 322 is connected to the rod 321 and is arranged radially along the rod 321. The end of the bristles away from the rod 322 is a free end. The rotation trajectory of the bristles 322 is circular, and the rotation axis R is the axis of the rod 31. During cleaning, the free end of the bristles 322 contacts the blade 200. The linear velocity of the part of the bristles in contact with the blade is high, which can break up and remove the tangled fibers. The length of the bristles can be adapted according to the diameter of the blade to ensure that the bristles can fully penetrate into the spiral groove of the blade during the cleaning process. The rod 322 can be made of metal or high-strength plastic. The rod can be connected to a power device such as a motor to drive the bristles to rotate at high speed around the axis of the rod. When the blade 200 enters the cleaning area, the bristles 322 form dynamic contact with the surface of the blade during rotation. Through the movement of the bristles 322, the tangled fibers are peeled off from the blade and rolled into the cleaning cavity. In this embodiment, the bristles 322 are made of flexible materials such as plastic and nylon.

[0036] like Figure 2 and Figure 3As shown, in this embodiment, the cleaning chamber 311 is disposed within the cleaning seat 310, and the cleaning seat 310 has an opening at the top to facilitate the insertion of the cutting tool. A flexible cleaning component 320 is disposed within the cleaning chamber 311, and the shape of the cleaning chamber 311 is adapted to the arrangement of the flexible cleaning component 320. When the flexible cleaning component 320 is arranged horizontally or vertically, the cleaning chamber 311 can effectively collect the tangled filaments generated during the cleaning process, preventing the filaments from splashing to other parts of the equipment. Simultaneously, a chip removal channel 312 is provided on the side of the cleaning seat 310, which is connected to the interior of the cleaning chamber 311. This allows the collected tangled filaments and other debris in the cleaning chamber 311 to be smoothly discharged through the chip removal channel 312, preventing debris from accumulating in the cleaning chamber 311 and affecting the cleaning effect. The chip removal channel 312 can be connected to an external chip removal device, such as a negative pressure chip suction device or a conveying pipeline, to further improve chip removal efficiency and ensure the continuous and stable operation of the cleaning assembly 300. By setting the chip removal channel 312 on the side of the cleaning seat 310, the space structure of the cleaning seat can be made reasonable, avoiding interference with the installation and movement of the flexible cleaning component 320 in the cleaning cavity 311, and facilitating the maintenance and cleaning of the chip removal channel 312.

[0037] <Example 2>

[0038] In this embodiment, the parts that are the same as in Embodiment 1 are given the same reference numerals, and the same text descriptions are omitted.

[0039] like Figure 4 As shown, compared to Embodiment 1, the PCB processing equipment provided in this embodiment has the following structural design differences:

[0040] The flexible cleaning component in this embodiment differs from that in Embodiment 1. This embodiment includes bristles 322 located within the cleaning cavity 311. The cleaning seat 310 has sidewalls 313, and the cleaning cavity 311 is situated between the sidewalls 313. One end of the bristles 322 is connected to the sidewall 313, while the other end is a free end. During cleaning, the blade 200 extends into the cleaning cavity 311 and contacts the free end of the bristles 322. The bristles 322 surround the blade 200, thus enveloping it and forming a 360-degree cleaning area without blind spots, ensuring that all parts of the blade's outer circumference can fully contact the bristles. The length of the bristles 322 can be set according to the shape of the blade 200. The axial length of the bristles 322 can be the same or different. For example, the bristles gradually increase from near the center of the cleaning seat outwards to accommodate the cleaning needs of blades with different diameters. When the blade extends into the cleaning cavity 311, bristles of different lengths can act on different radial positions of the blade, avoiding incomplete cleaning due to changes in blade diameter.

[0041] Furthermore, the rotation axis R of the brush bristles 322 coincides with the axis of the cutter 200, and the rotation direction of the brush bristles 322 is the same as that of the cutter, facilitating the removal of the brush bristles with the wrapped filaments from the cutter, similar to a nut being unloaded. The chip removal channel 312 is located at the bottom of the cleaning seat 310 and is coaxially arranged with the cutter 200, allowing the cleaned-off filaments and other debris to fall directly into the chip removal channel under gravity, reducing the residence time of debris in the cleaning chamber. At the same time, the coaxially arranged chip removal channel can form a straight line with the movement path of the cutter, making it less likely to interfere with the edge of the chip removal channel when the cutter exits the cleaning chamber after cleaning. In addition, the brush bristles 322 are integrally arranged with the cleaning seat 310, making its overall structure more compact. During cleaning, the downward movement of the cutter directly contacts the brush bristles 322, avoiding the risk of collision and interference with the cleaning seat 310.

[0042] In the above embodiments one and two, during the working process, depending on the different working environments, some of the technical implementation methods of embodiments one and two can be combined or replaced.

[0043] The technical principles of this utility model have been described above in conjunction with specific embodiments. However, it should be noted that these descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, other specific embodiments or equivalent substitutions of this utility model that can be conceived by those skilled in the art without creative effort will all fall within the scope of protection of this utility model.

Claims

1. A PCB processing equipment, characterized in that, include: Spindle assembly, used for PCB manufacturing; The cutting tool is mounted on the spindle assembly; The cleaning assembly is located within the movement range of the spindle assembly. The cleaning assembly includes a cleaning seat and a flexible cleaning element disposed on the cleaning seat. The flexible cleaning element is disposed in a horizontal or vertical direction. The cleaning seat has a cleaning cavity to accommodate the tangled wire. During cleaning, the spindle assembly drives the tool to contact the flexible cleaning element, and the flexible cleaning element rotates relative to the tool. The cleaning chamber is connected to the chip removal channel.

2. The PCB processing equipment according to claim 1, characterized in that, There are at least two flexible cleaning components, which are spaced apart in the same direction, and the cutting tool is located between the flexible cleaning components so that each flexible cleaning component is in contact with the cutting tool.

3. The PCB processing equipment according to claim 2, characterized in that, When the flexible cleaning component is set horizontally, its rotation axis is perpendicular to the axis of the cutting tool; when the flexible cleaning component is set vertically, its rotation axis is parallel to the axis of the cutting tool.

4. The PCB processing equipment according to claim 3, characterized in that, The flexible cleaning component includes a rod and bristles. One end of the bristles is connected to the rod and is arranged radially along the rod. The end of the bristles away from the rod is a free end. The axis of rotation is the axis of the rod. During cleaning, the free end of the bristles contacts the blade.

5. The PCB processing equipment according to claim 4, characterized in that, The chip removal channel is located on the side of the cleaning seat.

6. The PCB processing equipment according to claim 1, characterized in that, The flexible cleaning component includes bristles located in the cleaning chamber. The cleaning seat has a sidewall, with one end of the bristles connected to the sidewall and the other end being a free end. During cleaning, the blade extends into the cleaning chamber and contacts the free end of the bristles, with the bristles surrounding the blade.

7. The PCB processing equipment according to claim 6, characterized in that, The rotation axis of the bristles coincides with the axis of the cutter, and the rotation direction of the bristles is the same as that of the cutter, so as to facilitate the stripping of the filaments from the cutter.

8. The PCB processing equipment according to claim 7, characterized in that, The chip removal channel is located at the bottom of the cleaning seat and is coaxial with the blade, and the brush bristles are integrally formed with the cleaning seat.

9. The PCB processing equipment according to claim 1, characterized in that, At least one of the flexible cleaning component and the cutting tool is rotatable. When the flexible cleaning component is fixed, the spindle assembly drives the cutting tool to rotate forward or backward. When the cutting tool is fixed, the flexible cleaning component rotates.

10. The PCB processing equipment according to claim 1, characterized in that, The cleaning component is mounted on a workbench, which is horizontally positioned and located below the spindle assembly.

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