Edge milling device for whole stack of PCBs (Printed Circuit Board)
By designing a PCB stacking milling device, the plate positioning mechanism and milling mechanism are used to achieve neat stacking and precise milling of PCBs that have been transported multiple times, solving the problem of uneven PCB edges and improving milling accuracy and processing efficiency.
Patent Information
- Application Number
- CN202422547649.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-10-21
AI Technical Summary
The existing PCB milling device cannot realize the whole stacking of PCBs that have been transported multiple times, resulting in uneven edges and affecting the milling accuracy.
A PCB stacking and milling device is designed, which includes a plate positioning mechanism and a milling mechanism. The neat stacking of PCBs is achieved by the lifting and lowering action of the first and second baffles, and precise milling is performed using a sliding assembly and a milling tool.
It ensures the neatness of PCB stacking and the accuracy of milling, avoids the splashing of debris and the diffusion of smoke during the milling process, and improves the processing efficiency and quality.
Smart Images
Figure CN223418444U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PCB processing, in particular to a PCB whole stack edge milling device. Background Art
[0002] In the field of PCB processing, multiple PCBs need to be stacked and sawn together. This can lead to the problem of bridging the PCBs after sawing, hindering subsequent loading processes. For example, the upper loading mechanism is prone to over-absorption of material. To address this issue, the PCBs are milled before loading to prevent adhesion between the multiple PCBs. However, the PCBs are transported to the milling device in multiple stages. Existing milling devices are unable to stack the PCBs neatly. Consequently, the edges of the stacked PCBs are not completely aligned, ultimately affecting the milling accuracy of the PCBs. Utility Model Content
[0003] The main purpose of the utility model is to provide a PCB stacking and milling device, which is intended to stack PCBs that have been transported multiple times and ensure the milling accuracy of the stacked PCBs.
[0004] To achieve the above-mentioned purpose, the present invention provides a PCB stacking edge milling device, comprising:
[0005] A workbench, the workbench having a plate placement surface;
[0006] An outer cover is provided on the workbench and is located on one side of the plate placement plane along the X-axis direction; the outer cover is provided with a feed port extending along the Y-axis direction, and the feed port is located on a side close to the plate placement plane;
[0007] The plate positioning mechanism includes a first baffle, a first lifting portion, a second baffle, and a second lifting portion, wherein the first baffle is arranged in the outer cover, the first baffle is spaced apart from the edge of the plate placement plane, the lifting end of the first lifting portion is connected to the first baffle to drive the first baffle to rise and protrude from the plate placement plane and drive the first baffle to return to below the plate placement plane; the plate placement plane is provided with an avoidance through-hole, the second baffle can be lifted and inserted into the avoidance through-hole, and the second baffle is arranged perpendicular to the first baffle; the second lifting portion is located below the plate placement plane, and the lifting end of the second lifting portion is connected to the second baffle to drive the second baffle to rise and protrude from the plate placement plane and drive the second baffle to return to below the plate placement plane;
[0008] The milling mechanism is arranged in the outer cover, and the milling mechanism includes a sliding assembly, a milling drive unit and a milling tool, and the sliding end of the sliding assembly slides along the Y-axis direction; the milling drive unit is arranged on the sliding end of the sliding assembly, and the output shaft of the milling drive unit is connected to the tool transmission to drive the milling tool to rotate.
[0009] Optionally, the sliding end of the sliding assembly is provided with an adjustment assembly, and the adjustment assembly includes an adjustment rail, an adjustment slider, a bracket, a base plate and a telescopic part. The adjustment rail is arranged at the sliding end of the sliding assembly, and the adjustment rail extends along the X-axis direction. The adjustment slider slides with the adjustment rail, and the base plate is fixedly connected to the adjustment slider. The bracket is arranged on the upper surface of the base plate, and the telescopic part is fixedly connected to the sliding end of the sliding assembly. The telescopic end of the telescopic part is connected to the base plate, and the telescopic end of the telescopic part slides along the X-axis direction, and the milling drive part is fixedly arranged on the bracket.
[0010] Optionally, the milling tool includes a cutter disc and several milling cutters arranged on the periphery of the cutter disc, and the cutter disc is arranged on the output shaft of the milling drive unit; a dust suction mechanism is provided in the outer cover, and the dust suction mechanism includes a cover shell and a negative pressure device, and the cover shell covers the milling tool, and the cover shell is provided with an avoidance port on the side close to the feed port, and the periphery of the cutter disc at least partially passes through the avoidance port, and the cover shell is connected to the negative pressure end of the negative pressure device.
[0011] Optionally, the dust suction mechanism also includes a dust suction groove with an upward opening, which extends along the Y-axis direction and is arranged in the outer cover and is located below the cover shell. A debris filter is provided in the middle of the dust suction groove, and the bottom of the dust suction groove is connected to the negative pressure end of the negative pressure device.
[0012] Optionally, an inflation device is further included, an air cavity is provided in the workbench, a plurality of ventilation holes are provided on the plate placement plane, the ventilation holes are connected to the air cavity, and the air cavity is connected to the inflation output end of the inflation device.
[0013] Optionally, a clamping assembly is also included, which includes a pressure beam frame, a third lifting part and a pressure beam block. The pressure beam frame is arranged in the outer cover, and the third lifting part is arranged on the pressure beam frame and is located above the plate placement plane; the pressure beam block extends along the Y-axis direction and is connected to the lifting end of the third lifting part.
[0014] Optionally, a curtain stop assembly is further included, which includes a fourth lifting part, a connecting rod and several curtain stop parts. The fourth lifting part is arranged on the pressure beam frame and is located above the plate placement plane; the connecting rod extends along the Y-axis direction and is connected to the lifting end of the fourth lifting part. The connecting rod is located on the side of the pressure beam block away from the milling mechanism; several curtain stop parts are fixedly arranged on the connecting rod.
[0015] Optionally, the outer cover is provided with a hinged flip cover.
[0016] The technical solution provided by the utility model may have the following beneficial effects:
[0017] This novel PCB stacking and milling device utilizes a plate positioning mechanism to stack multiple PCBs, allowing them to be neatly stacked on the plate support surface of the workbench while ensuring precise milling of the stacked PCBs. Furthermore, when the stacked PCBs need to be rotated on the workbench, the first and second lifters can be driven to lower the first and second baffles below the plate support surface, effectively preventing them from obstructing the rotation of the stacked PCBs. After rotation is complete, the first and second baffles can be raised again for positioning, facilitating milling of the stacked PCBs at different edges. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.
[0019] Figure 1 This is a structural diagram of the PCB stacking edge milling device of the utility model;
[0020] Figure 2 This is a structural diagram of the plate positioning mechanism of the PCB stacking and edge milling device of the present invention;
[0021] Figure 3 This is a structural diagram of the milling mechanism of the PCB stacking milling device of the present invention;
[0022] Figure 4 yes Figure 3 A magnified schematic diagram of area A in the middle;
[0023] Figure 5 This is a structural diagram of the dust collection mechanism of the PCB stacking and edge milling device of the present invention;
[0024] Figure 6 This is a structural diagram of the pressing assembly of the PCB stacking and milling device of the present invention;
[0025] Figure 7 This is a structural diagram of the curtain assembly of the PCB stacking and milling device of the present invention;
[0026] Explanation of the accompanying figures: 100-workbench, 110-plate placement plane, 111-avoidance through hole, 112-ventilation hole, 200-outer cover, 210-feeding port, 220-dust suction mechanism, 221-cover, 222-avoidance port, 223-dust suction trough, 224-debris filter, 230-flip cover, 300-plate positioning mechanism, 310-first baffle, 320-first lifting part, 330-second baffle, 340-second lifting part, 400-edge milling machine Structure, 410-sliding assembly, 420-milling drive unit, 430-milling tool, 431-cutter disc, 432-milling cutter, 440-adjustment assembly, 441-adjustment slide rail, 442-adjustment slider, 443-bracket, 444-bottom plate, 445-telescopic part, 500-pressing assembly, 510-pressure beam frame, 520-third lifting part, 530-pressure beam block, 600-curtain assembly, 610-fourth lifting part, 620-connecting rod, 630-curtain part. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0028] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0029] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0030] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is to include three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or solutions that meet both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0031] The following combination Figures 1 to 7 , describing the PCB stacking edge milling device of the embodiment of the utility model, comprising:
[0032] A workbench 100 having a plate placement surface 110;
[0033] The outer cover 200 is provided on the workbench 100 and is located on one side of the plate placement plane 110 along the X-axis direction; the outer cover 200 is provided with a feed port 210 extending along the Y-axis direction, and the feed port 210 is located on a side close to the plate placement plane 110;
[0034] The plate positioning mechanism 300 includes a first baffle 310, a first lifting portion 320, a second baffle 330, and a second lifting portion 340. The first baffle 310 is disposed within the outer cover 200. The first baffle 310 is spaced apart from the edge of the plate placement plane 110. The lifting end of the first lifting portion 320 is connected to the first baffle 310 to drive the first baffle 310 to rise above the plate placement plane 110 and to drive the first baffle 310 to return to a position below the plate placement plane. 110; the plate placement plane 110 is provided with an avoidance through-hole 111, and the second baffle 330 can be inserted into the avoidance through-hole 111 in a liftable manner, and the second baffle 330 is arranged perpendicular to the first baffle 310; the second lifting portion 340 is located below the plate placement plane 110, and the lifting end of the second lifting portion 340 is connected to the second baffle 330 to drive the second baffle 330 to rise and protrude from the plate placement plane 110 and drive the second baffle 330 to return to a position lower than the plate placement plane 110;
[0035] The milling mechanism 400 is disposed within the housing 200 and includes a sliding assembly 410, a milling drive unit 420, and a milling cutter 430. The sliding assembly 410 is located within the housing 200, and the sliding end of the sliding assembly 410 slides along the Y-axis. The milling drive unit 420 is disposed above the sliding end of the sliding assembly 410. The output shaft of the milling drive unit 420 is in transmission connection with the cutter to drive the milling cutter 430 to rotate. By disposing the milling mechanism 400 within the housing 200, debris splashing and smoke diffusion are effectively prevented.
[0036] In a specific application embodiment, when loading is required, the first and second lifting portions 320 and 340 are driven to raise the first and second baffles 310 and 330, respectively, so that the first and second baffles 310 and 330 protrude from the plate placement plane 110. The PCBs are transported and stacked on the plate placement plane 110 of the workbench 100 in multiple passes. Because the first and second baffles 310 and 330 are arranged vertically, the entire stack of PCBs can be aligned by placing the two right-angled edges of each transported PCB against the first and second baffles 310 and 330. It is worth noting that the first baffle 310 is spaced apart from the edge of the plate placement plane 110. Therefore, when the edge of the PCB abuts the first baffle 310, the PCB at least partially passes through the feed port 210 and extends beyond the edge of the plate placement plane 110, allowing the milling mechanism 400 to perform milling on the edge. During the milling process, the first lifter 320 lowers the first baffle 310, the milling drive 420 rotates the milling cutter 430, and the sliding assembly 410 drives the milling drive 420 and the milling cutter 430 synchronously along the Y-axis, thereby milling the stacked PCBs and achieving integrated milling of the entire PCB stack. Specifically, it is worth noting that the sliding assembly 410 can be a linear module. The first and second lifters 320, 340 can be pneumatic cylinders, electric push rods, or hydraulic cylinders.
[0037] In this novel PCB stacking and milling device, a plate positioning mechanism 300 is used to stack PCBs that have been transported multiple times, allowing them to be neatly stacked on the plate placement surface 110 of the workbench 100 while ensuring the milling accuracy of the stacked PCBs. Furthermore, when the stacked PCBs need to be rotated on the workbench 100, the first and second lifters 320 and 340 can be driven to lower the first and second baffles 310 and 330, respectively, so that the first and second baffles 310 and 330 are below the plate placement surface 110, effectively preventing the first and second baffles 310 and 330 from obstructing the rotation of the stacked PCBs. After rotation is complete, the first and second baffles 310 and 330 can be raised again for positioning, facilitating milling of the stacked PCBs at different edges.
[0038] Preferably, the sliding end of the sliding component 410 is provided with an adjustment component 440, and the adjustment component 440 includes an adjustment slide rail 441, an adjustment slider 442, a bracket 443, a base plate 444 and a telescopic part 445. The adjustment slide rail 441 is arranged at the sliding end of the sliding component 410, and the adjustment slide rail 441 extends along the X-axis direction. The adjustment slider 442 slides with the adjustment slide rail 441, and the base plate 444 is fixedly connected to the adjustment slider 442. The bracket 443 is arranged on the upper surface of the base plate 444. The telescopic part 445 is fixedly connected to the sliding end of the sliding component 410, and the telescopic end of the telescopic part 445 is connected to the base plate 444, and the telescopic end of the telescopic part 445 slides along the X-axis direction. The milling drive part 420 is fixedly arranged on the bracket 443.
[0039] In this embodiment, when milling is required, the telescopic portion 445 drives the base plate 444 to approach the feed port 210 along the X-axis direction, so that the milling tool 430 approaches the edge of the stacked PCBs. As the sliding end of the sliding assembly 410 moves along the Y-axis direction, the milling tool 430 mills the edges of the stacked PCBs. After the sliding end of the sliding assembly 410 moves to the end along the Y-axis direction, the telescopic portion 445 resets and drives the base plate 444 away from the feed port 210 along the X-axis direction, so that the milling tool 430 is away from the edge of the stacked PCBs, so as to avoid the milling tool 430 contacting the edge of the stacked PCBs and damaging the milled PCBs when the sliding end of the sliding assembly 410 resets along the Y-axis direction. Specifically, the telescopic portion 445 can be any one of a pneumatic cylinder, a hydraulic cylinder, or an electric push rod.
[0040] Optionally, the milling tool 430 includes a cutter disc 431 and a plurality of milling cutters 432 disposed on the periphery of the cutter disc 431. The cutter disc 431 is disposed on the output shaft of the milling drive unit 420. A dust collection mechanism 220 is disposed within the outer housing 200. The dust collection mechanism 220 includes a cover shell 221 and a negative pressure device (not shown). The cover shell 221 covers the milling tool 430. A clearance opening 222 is provided on a side of the cover shell 221 near the feed inlet 210. The periphery of the cutter disc 431 at least partially extends through the clearance opening 222. The cover shell 221 is connected to the negative pressure end of the negative pressure device. In this embodiment, the cover shell 221 covers the milling tool 430, and the periphery of the cutter disc 431 at least partially extends through the clearance opening 222 of the cover shell 221, so that the milling tool 430 can normally contact the edge of the stacked PCBs when rotating. During the milling process, the cover 221 effectively reduces debris splashing and smoke diffusion. Furthermore, a negative pressure device provides suction, drawing away smoke and debris from the milling cutter 430, further reducing debris splashing and smoke diffusion. Specifically, the milling drive unit 420 includes a drive motor, a belt drive, and a drive shaft. The drive motor rotates the drive shaft via the belt drive. The drive shaft serves as the output shaft of the milling drive unit 420, and the cutterhead 431 is connected to the drive shaft.
[0041] Furthermore, the dust collection mechanism 220 also includes a dust collection trough 223 with an upward opening. The dust collection trough 223 extends along the Y-axis direction and is arranged inside the outer cover 200 and is located below the cover shell 221. A debris filter 224 is provided in the middle of the dust collection trough, and the bottom of the dust collection trough is connected to the negative pressure end of the negative pressure device. In this embodiment, the dust collection trough 223 opens upward and is used to receive debris that falls during the milling process. The debris is separated by the debris filter 224 and remains inside the dust collection trough 223. And under the negative pressure of the negative pressure device, some smoke and dust are discharged through the debris filter 224. Specifically, the negative pressure device can be a negative pressure fan.
[0042] Optionally, the PCB stacking and milling device further includes an air filling device (not shown). The workbench 100 is provided with an air cavity (not shown), and the plate placement plane 110 is provided with a plurality of air vents 112. The air vents 112 are connected to the air cavity, and the air cavity is connected to the air filling output end of the air filling device. Specifically, the air filling device continuously fills the air cavity with air, and the gas in the air cavity is discharged from the air vents 112, so that the plates on the plate placement plane 110 are pushed up by the gas, thereby facilitating the sliding of the stacked PCBs on the plate placement plane 110 and reducing manual labor intensity. Specifically, the air filling device can be a blower or a high-pressure air source.
[0043] Preferably, the PCB stacking milling device further includes a clamping assembly 500 comprising a compression beam frame 510, a third lifting unit 520, and a compression beam block 530. The compression beam frame 510 is disposed within the housing 200, and the third lifting unit 520 is disposed within the compression beam frame 510 and positioned above the plate placement plane 110. The compression beam block 530 extends along the Y-axis and is connected to the lifting end of the third lifting unit 520. In this embodiment, after the stacked PCBs are positioned on the plate placement plane 110, the third lifting unit 520 lowers the compression beam block 530, causing it to press down on the upper surface of the stacked PCBs, thereby pressing the stacked PCBs against the workbench 100 and securing the PCBs. This prevents displacement of the stacked PCBs during milling, ensuring milling accuracy. Specifically, the third lifting unit 520 can be any of a pneumatic cylinder, an electric push rod, a hydraulic cylinder, or the like.
[0044] Optionally, the PCB stacking milling device also includes a curtain assembly 600, which includes a fourth lifting part 610, a connecting rod 620 and a plurality of curtain parts 630. The fourth lifting part 610 is arranged on the pressure beam frame 510 and is located above the plate placement plane 110; the connecting rod 620 extends along the Y-axis direction and is connected to the lifting end of the fourth lifting part 610, and the connecting rod 620 is located on the side of the pressure beam block 530 away from the milling mechanism 400; and a plurality of curtain parts 630 are fixedly arranged on the connecting rod 620.
[0045] In this way, in actual use, the fourth lifting unit 610 can be used to adjust the height of the connecting rod 620, thereby simultaneously raising all the curtain members 630 so that the bottom ends of the curtain members 630 are aligned with the upper surface of the entire PCB stack. By partially blocking the feed inlet 210 with the curtain members 630, debris splashing out of the feed inlet 210 during the milling process is effectively reduced. Specifically, the fourth lifting unit 610 can be any of a pneumatic cylinder, an electric push rod, a hydraulic cylinder, or the like.
[0046] Alternatively, as Figure 1 As shown, the outer cover 200 is provided with a hinged flap 230. Specifically, the flap 230 is L-shaped and hinged at the top of the outer cover 200. The flap 230 can be opened upward. The provision of the flap 230 on the outer cover 200 facilitates cleaning the dust collection chute 223 within the outer cover 200 and maintaining the edge milling mechanism 400.
[0047] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present invention.
Claims
1. PCB stacking edge milling device, characterized by: include: A workbench, the workbench having a plate placement surface; An outer cover is provided on the workbench and is located on one side of the plate placement plane along the X-axis direction; the outer cover is provided with a feed port extending along the Y-axis direction, and the feed port is located on a side close to the plate placement plane; The plate positioning mechanism includes a first baffle, a first lifting portion, a second baffle, and a second lifting portion, wherein the first baffle is arranged in the outer cover, the first baffle is spaced apart from the edge of the plate placement plane, the lifting end of the first lifting portion is connected to the first baffle to drive the first baffle to rise and protrude from the plate placement plane and drive the first baffle to return to below the plate placement plane; the plate placement plane is provided with an avoidance through-hole, the second baffle can be lifted and inserted into the avoidance through-hole, and the second baffle is arranged perpendicular to the first baffle; the second lifting portion is located below the plate placement plane, and the lifting end of the second lifting portion is connected to the second baffle to drive the second baffle to rise and protrude from the plate placement plane and drive the second baffle to return to below the plate placement plane; The milling mechanism is arranged in the outer cover, and the milling mechanism includes a sliding assembly, a milling drive unit and a milling tool. The sliding end of the sliding assembly slides along the Y-axis direction; the milling drive unit is arranged on the sliding end of the sliding assembly, and the output shaft of the milling drive unit is connected to the tool transmission to drive the milling tool to rotate.
2. The PCB stacking edge milling device according to claim 1, characterized in that: The sliding end of the sliding assembly is provided with an adjusting assembly, and the adjusting assembly includes an adjusting slide rail, an adjusting slider, a bracket, a base plate and a telescopic part. The adjusting slide rail is arranged at the sliding end of the sliding assembly, and the adjusting slide rail extends along the X-axis direction. The adjusting slider slides with the adjusting slide rail, and the base plate is fixedly connected to the adjusting slider. The bracket is arranged on the upper surface of the base plate, and the telescopic part is fixedly connected to the sliding end of the sliding assembly. The telescopic end of the telescopic part is connected to the base plate, and the telescopic end of the telescopic part slides along the X-axis direction. The milling drive part is fixedly arranged on the bracket.
3. The PCB stacking edge milling device according to claim 1, characterized in that: The edge milling tool comprises a cutter disc and a plurality of milling cutters arranged on the periphery of the cutter disc, wherein the cutter disc is arranged on the output shaft of the edge milling drive unit; A dust suction mechanism is provided in the outer cover, and the dust suction mechanism includes a cover shell and a negative pressure device. The cover shell covers the milling tool, and a avoidance opening is provided on the side of the cover shell close to the feed port. The outer periphery of the cutter disc at least partially passes through the avoidance opening, and the cover shell is connected to the negative pressure end of the negative pressure device.
4. The PCB stacking edge milling device according to claim 3, characterized in that: The dust suction mechanism also includes a dust suction groove with an upward opening, which is extended along the Y-axis direction and arranged in the outer cover and is located below the cover shell. A debris filter is provided in the middle of the dust suction groove, and the bottom of the dust suction groove is connected to the negative pressure end of the negative pressure device.
5. The PCB stacking edge milling device according to claim 1, characterized in that: It also includes an inflation device, an air cavity is provided in the workbench, and a plurality of ventilation holes are provided on the plate placement plane. The ventilation holes are connected to the air cavity, and the air cavity is connected to the inflation output end of the inflation device.
6. The PCB stacking edge milling device according to claim 1, characterized in that: It also includes a clamping assembly, which includes a pressure beam frame, a third lifting part and a pressure beam block. The pressure beam frame is arranged in the outer cover, and the third lifting part is arranged on the pressure beam frame and is located above the plate placement plane; the pressure beam block extends along the Y-axis direction and is connected to the lifting end of the third lifting part.
7. The PCB stacking edge milling device according to claim 6, characterized in that: It also includes a curtain stop assembly, which includes a fourth lifting part, a connecting rod and several curtain stop parts. The fourth lifting part is arranged on the pressure beam frame and is located above the plate placement plane; the connecting rod extends along the Y-axis direction and is connected to the lifting end of the fourth lifting part. The connecting rod is located on the side of the pressure beam block away from the milling mechanism; several curtain stop parts are fixedly arranged on the connecting rod.
8. The PCB stacking edge milling device according to claim 1, characterized in that: The outer cover is provided with a hinged flip cover.