Composite cutting blade assembly for PCB depaneling machine

Abstract

This utility model belongs to the technical field of circuit board manufacturing equipment, specifically relating to a composite cutting tool assembly for a PCB depaneling machine. It includes a drill assembly, a saw blade assembly, and a vertical base plate. The drill assembly comprises a vertically downward-facing depaneling machine spindle and a milling cutter head, with the milling cutter head mounted at the bottom of the spindle. The saw blade assembly includes a vertically downward-facing rotary driver and a vertical saw blade, the latter fixedly connected to the rotary driver's rotating shaft. The drill assembly and saw blade assembly are respectively mounted on a lifting slide, which is parallel to each other and both mounted on the vertical base plate. The vertical base plate is slidably connected to the translation slide. The PCB depaneling machine cutting tool component provided by this utility model features independently adjustable drill and milling cutters and a vertical saw blade, allowing for quick switching between the two cutting tools according to the required cut shape when cutting circuit boards. This helps improve the tool's lifespan and the accuracy of circuit board cutting.

Description

Technical Field

[0001] This utility model relates to the field of circuit board production equipment technology, and more specifically, to a composite cutting blade assembly for a depaneling machine. Background Technology

[0002] Circuit boards are essential components in electronic products. During the manufacturing process, circuit board splitting machines are used to separate circuit boards. A circuit board splitting machine is a machine that cuts off the ribs of multiple circuit boards (PCBs) that are originally mounted as a single unit, thus separating them into individual circuit boards.

[0003] The commonly used PCB depaneling machine structure is shown in the patent document with patent number CN201310520563.9, entitled "PCB Curve Dividing Machine". It includes a worktable, X-axis slide rail assembly, Y-axis slide rail assembly, Z-axis slide rail assembly, slide cutter support, and dividing shaft head. Two universal trays that can reciprocate along the Y-axis are arranged side-by-side in the middle of the worktable. This invention has a clever and reasonable structural design, utilizing the dividing shaft head to achieve curve depaneling. Furthermore, with the cooperation of the X, Y, and Z-axis slide rail assemblies and universal trays, it can complete the cutting of various complex shapes, meeting the installation requirements of electronic products of different shapes. However, this equipment can only cut stamp holes and bridging points, and cannot cut PCBs with both V-CUT and stamp hole processes. It requires first cutting with a feed cutter or guillotine cutter, and then placing the PCB in a milling cutter for a second cutting. This results in multiple production steps, low efficiency, and a high risk of defective products.

[0004] Therefore, it is necessary to upgrade the cutting structure of the PCB depaneling machine to better meet the cutting needs of various shapes. Utility Model Content

[0005] To address the issue that current PCB depaneling machines cannot cut PCBs with both V-CUT and stamp hole processes, requiring them to be cut first in a feed cutter or guillotine cutter and then placed in a milling cutter for a second cut, resulting in numerous production steps, we provide a composite cutting blade assembly for PCB depaneling machines.

[0006] The composite cutting assembly of the PCB splitting machine includes a drill bit assembly, a saw blade assembly, and a vertical base plate. The drill bit assembly includes a vertically downward-facing PCB splitting machine spindle and a milling cutter head, with the milling cutter head mounted at the bottom of the PCB splitting machine spindle. The saw blade assembly includes a vertically downward-facing rotary driver and a vertical saw blade, with the vertical saw blade fixedly connected to the rotary driver's rotating shaft. The drill bit assembly and the saw blade assembly are respectively mounted on a lifting slide, with the two lifting slides parallel to each other and both mounted on the vertical base plate. The vertical base plate is slidably connected to the translation slide.

[0007] Furthermore, both the milling cutter head and the vertical saw blade are surrounded by a dust collection hood with an opening at the bottom, and the dust collection hood is connected to the dust collection device through a dust collection hose.

[0008] Furthermore, the inner air passage of the dust collection hood is connected to an ion fan.

[0009] Furthermore, a ring-shaped brush is movably fastened to the bottom of the dust hood, a snap ring is provided at the top of the ring-shaped brush, a snap ring is provided on the snap ring, and a snap protrusion is provided at the bottom of the dust hood corresponding to the snap ring guide groove.

[0010] Furthermore, the rotating shaft of the rotary driver is sequentially connected to a coupling and a motor bracket, and a saw blade motor is mounted on the motor bracket, with the vertical saw blade mounted at the output end of the saw blade motor.

[0011] Furthermore, a proximity sensor is provided on the inner side of the motor bracket, and the proximity sensor is electrically connected to the rotary driver.

[0012] Furthermore, a vertically downward-facing camera module is provided in front of the spindle of the PCB splitter, and a ring-shaped fill light is provided below the camera module.

[0013] The advantages of this utility model are:

[0014] The machine integrates a drill bit and a vertical saw blade in the same location, allowing for the selection of two different tools when cutting circuit boards. It can perform combined cutting of PCB boards with stamp hole and V-CUT processes. With the online cutting mode, it can achieve automated cutting with two functions in one machine. On the other hand, it is equipped with a dust hood and an ion fan to remove debris generated during the circuit board cutting process in a timely manner and prevent debris from adhering to the surface of the equipment or product due to static electricity, thereby avoiding debris contamination of the product and the cutting mechanism. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0016] Figure 1 This is a schematic diagram of the composite cutting blade assembly of a PCB depaneling machine;

[0017] Figure 2 This is a schematic diagram of the lower part of the composite cutting blade assembly of the PCB depaneling machine;

[0018] Figure 3 Detailed structural diagrams of the drill bit assembly and saw blade assembly.

[0019] Attached Figure Labels

[0020] 1. Drill bit assembly; 101. Spindle of PCB separator; 102. Milling cutter head; 2. Saw blade assembly; 201. Rotary drive; 202. Vertical saw blade; 203. Saw blade motor; 3. Vertical base plate; 4. Lifting slide; 5. Translation slide; 6. Dust hood; 601. Snap-fit ​​protrusion; 7. Ionizing fan; 8. Circular brush; 801. Snap-fit ​​ring; 802. Snap-fit ​​guide groove; 9. Coupling; 901. Motor bracket; 10. Proximity sensor; 11. Camera module; 12. Ring fill light. Detailed Implementation

[0021] To address the issue that current PCB depaneling machines cannot cut PCBs with both V-CUT and stamp hole processes, requiring them to be cut first in a feed cutter or guillotine cutter and then placed in a milling cutter for a second cut, resulting in numerous production steps, we provide a composite cutting blade assembly for PCB depaneling machines.

[0022] 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 only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] It should be noted that the terms such as "inner", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as part of the scope of implementation of this utility model, as stated above.

[0024] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for 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," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" 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 direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

[0025] like Figures 1 to 3 As shown, this embodiment provides a composite cutting tool assembly for a PCB splitter, including a drill assembly 1, a saw blade assembly 2, and a vertical base plate 3. The drill assembly 1 includes a vertically downward-facing PCB splitter spindle 101 and a milling cutter head 102. The milling cutter head 102 is installed at the bottom of the PCB splitter spindle 101. The saw blade assembly 2 includes a vertically downward-facing rotary driver 201 and a vertical saw blade 202. The vertical saw blade 202 is fixedly connected to the rotation shaft of the rotary driver 201. The drill assembly 1 and the saw blade assembly 2 are respectively installed on a lifting slide 4. The two lifting slides 4 are parallel to each other and are both installed on the vertical base plate 3. The vertical base plate 3 is slidably connected to a translation slide 5.

[0026] With the left-right switching of the translation slide 5 and the lifting switching of the lifting slide 4, the operator can set the downward protruding cutter to cut the circuit board as needed according to the cutting requirements. The rotary driver 201 can use a servo motor to adjust the horizontal and vertical orientation of the vertical saw blade 202, for example, to quickly cut the square frame of the circuit board product using the vertical saw blade 202.

[0027] Because this embodiment uses a combination structure of milling cutter and saw blade cutting, it can perform combined cutting of PCB boards with stamp holes and V-CUT dual processes. Combined with the online cutting mode, it can realize automated cutting with one machine for two purposes.

[0028] When there are pins or protruding components at the bottom of the V-CUT slot in the PCB board, current milling cutter depaneling machines cannot cut them and can only be forcibly pried open by hand (which causes high stress and easily damages components). In this embodiment, as long as the saw blade is turned on, the cutting can be completed accurately (without damaging the bottom components).

[0029] Both the milling cutter head 102 and the vertical saw blade 202 are surrounded by a dust suction hood 6 with an opening at the bottom. The dust suction hood 6 is connected to a dust collection device via a dust suction hose. The dust collection device can be an industrial vacuum cleaner commonly used in the art. Since the dust suction hood 6 moves with the cutter, a flexible, hollow dust suction hose is required to connect the dust suction hood 6 and the dust collection device.

[0030] The inner air passage of the dust collection hood 6 is connected to an ion fan 7. The ion fan 7 is a commonly used static electricity elimination device on the market, which can prevent dust and debris generated during circuit board cutting from being attracted to the surface of the product or equipment by static electricity and causing pollution, so that the dust and debris can be quickly sucked away.

[0031] A ring-shaped brush 8 is movably fastened to the bottom of the dust collection hood 6. A snap-fit ​​ring 801 is located at the top of the ring-shaped brush 8, and a snap-fit ​​guide groove 802 is provided on the snap-fit ​​ring 801. A snap-fit ​​protrusion 601 is located at the bottom of the dust collection hood 6 corresponding to the snap-fit ​​guide groove 802. The ring-shaped brush 8 can wrap around the cutter when cutting the circuit board, preventing dust from flying out. The quick-release mechanism of the snap-fit ​​ring 801 facilitates the replacement of the ring-shaped brush 8.

[0032] The rotary drive 201 has a rotating shaft connected in sequence to a coupling 9 and a motor bracket 901. A saw blade motor 203 is mounted on the motor bracket 901, and a vertical saw blade 202 is mounted on the output end of the saw blade motor 203. The design of the coupling 9 and the motor bracket 901 can improve the support stability of the vertical saw blade 202 and prevent it from shaking under force, thus affecting the cutting quality.

[0033] A proximity sensor 10 is installed on the inner side of the motor bracket 901, and the proximity sensor 10 is electrically connected to the rotary driver. The proximity sensor 10 can be a commonly used photoelectric switch to prevent the vertical saw blade 202 from rotating towards the vertical base plate 3, which could cause structural damage.

[0034] A vertically downward-facing camera module 11 is installed in front of the spindle 101 of the PCB splitter, and a ring light 12 is installed below the camera module 11. The ring light 12 illuminates the circuit board to be cut, and the camera module 11 outputs monitoring video, which facilitates the staff to monitor the operating status of the equipment and provides video data for the industrial control computer to locate the cutting position of the cutter.

[0035] The above description is a further detailed explanation of the present utility model in conjunction with specific preferred embodiments. It should not be assumed that the specific implementation of the present utility model is limited to these descriptions. All equivalent changes and modifications made within the scope of this application should still fall within the scope of the present utility model.

Claims

1. A composite cutting blade assembly for a PCB depaneling machine, characterized in that, The device includes a drill bit assembly, a saw blade assembly, and a vertical base plate. The drill bit assembly includes a vertically downward-facing PCB splitter spindle and a milling cutter head, with the milling cutter head mounted at the bottom of the PCB splitter spindle. The saw blade assembly includes a vertically downward-facing rotary driver and a vertical saw blade, with the vertical saw blade fixedly connected to the rotary driver's rotating shaft. The drill bit assembly and the saw blade assembly are respectively mounted on a lifting slide. The two lifting slides are parallel to each other and are both mounted on the vertical base plate. The vertical base plate is slidably connected to the translation slide.

2. The composite cutting blade assembly for a PCB depaneling machine according to claim 1, characterized in that, Both the milling cutter head and the vertical saw blade are surrounded by a dust collection hood with an opening at the bottom, and the dust collection hood is connected to the dust collection device through a dust collection hose.

3. The composite cutting blade assembly for a PCB depaneling machine according to claim 2, characterized in that, The inner air passage of the dust collection hood is connected to an ion fan.

4. The composite cutting blade assembly for a PCB depaneling machine according to claim 2, characterized in that, A ring-shaped brush is movably fastened to the bottom of the dust hood. A snap ring is provided at the top of the ring-shaped brush, and a snap-fit ​​guide groove is provided on the snap ring. A snap-fit ​​protrusion is provided at the bottom of the dust hood corresponding to the snap-fit ​​guide groove.

5. The composite cutting blade assembly for a PCB depaneling machine according to claim 1, characterized in that, The rotary drive's rotating shaft is sequentially connected to a coupling and a motor bracket. A saw blade motor is mounted on the motor bracket, and a vertical saw blade is mounted at the output end of the saw blade motor.

6. The composite cutting blade assembly for a PCB depaneling machine according to claim 5, characterized in that, A proximity sensor is installed on the inner side of the motor bracket, and the proximity sensor is electrically connected to the rotary driver.

7. The composite cutting blade assembly for a PCB depaneling machine according to claim 1, characterized in that, A vertically downward-facing camera module is installed in front of the spindle of the PCB splitter, and a ring light is installed below the camera module.

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