A PCB circuit board processing device

Abstract

The present invention discloses a PCB circuit board processing device, which relates to the technical field of PCB processing. The device includes a frame, a first linear module, a second linear module, a drilling mechanism, a feeding mechanism and a cutter head assembly. The first linear module is fixed on the frame, and a movable first movable frame is arranged on the first linear module. The second linear module is fixed on the first movable frame, and the moving directions of the first linear module and the second linear module are perpendicular to each other. The drilling mechanism is movably arranged on the second linear module. This processing device realizes the automatic loading and unloading of the PCB board and provides more operating space for the feeding mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of PCB processing, and particularly to a PCB circuit board processing device. Background Art

[0002] A PCB circuit board, also known as a printed circuit board or printed wiring board, is a provider of electrical connections for electronic components and is an important electronic component.

[0003] When manufacturing and processing a PCB circuit board, it is necessary to first perform drilling. The drilled holes generally include through holes and blind holes. The through holes achieve conductive connection by plating copper on the hole walls, and the blind holes can be used as positioning holes, etc. Currently, manual feeding is used when drilling a PCB circuit board, and workers place the PCB circuit board at the drilling position, which is time-consuming and laborious. Summary of the Invention

[0004] Aiming at the defects existing in the above-mentioned prior art, the purpose of the present invention is to provide a PCB circuit board processing device to solve the problem of time-consuming and laborious manual placement.

[0005] The purpose of the present invention is achieved by adopting the following technical solutions:

[0006] A PCB circuit board processing device includes:

[0007] A frame;

[0008] A first linear module, the first linear module is fixed on the frame, and a movable first movable frame is provided on the first linear module;

[0009] A second linear module, the second linear module is fixed on the first movable frame, and the moving direction of the first linear module is perpendicular to the moving direction of the second linear module;

[0010] A drilling mechanism, the drilling mechanism is movably arranged on the second linear module;

[0011] The feeding mechanism includes a feeding device, a fixing frame, a working plate and a first pushing mechanism. The fixing frame includes a first bracket, a second bracket and a third bracket. The first bracket and the second bracket are arranged in parallel and fixed on the machine frame. The third bracket is fixedly connected between the first bracket and the second bracket. The upper surfaces of the first bracket and the second bracket are provided with sliding grooves. A rotatable first guiding wheel is fixedly arranged at the first end of the sliding groove. A guiding groove for the first guiding wheel to roll is provided on the lower surface of the working plate. A clamping member and a rotatable second guiding wheel are fixedly arranged at the bottom of the second end of the working plate. The second guiding wheel can slide in the sliding groove. Fastening members are fixed at the second ends of the first bracket and the second bracket. The first pushing mechanism is used to push the working plate to slide on the first bracket and the second bracket. When the working plate is pushed into the first bracket and the second bracket, the drilling mechanism performs drilling work. When the working plate is pushed out of the first bracket and the second bracket, the feeding device places the PCB board on the working plate. A positioning groove for positioning the PCB board is provided on the working plate.

[0012] The cutter head assembly includes a second pushing mechanism and a drill bit storage box. The second pushing mechanism and the drill bit storage box are arranged outside the feeding mechanism. The second pushing mechanism is used to push the drill bit storage box away from and close to the drilling mechanism.

[0013] Further, the clamping member includes a roller. The roller is rotatably fixed at the bottom of the second end of the working plate. The fastening member includes a protective cover and an elastic buckle body fixed in the protective cover. The elastic buckle body includes an inclined surface and an arc surface. The height of the bottommost part of the inclined surface is less than the height of the topmost part of the arc surface. The roller can roll along the inclined surface into the arc surface. The inclined surface slopes downward.

[0014] Further, the working plate includes an operation frame, a support plate and a working panel. The operation frame is fixed at the first end of the support plate. The first pushing mechanism pushes the operation frame. The working panel is fixed on the support plate. The guiding groove, the second guiding wheel and the clamping member are all arranged on the working panel.

[0015] Further, the drilling mechanism includes a second movable frame, a third pushing mechanism, a pushing frame and a drill bit assembly. The second movable frame is movably arranged on the second linear module. The third pushing mechanism is fixed on the second movable frame. The movable end under the third pushing mechanism is fixedly connected with the pushing frame. The drill bit assembly is fixed on the pushing frame.

[0016] Further, the drill bit assembly includes a driving source, a rotating shaft, and a drill head. The driving source is fixed on the pushing frame. The rotating shaft is connected below the driving source. The drill head is detachably arranged below the rotating shaft.

[0017] Further, a support frame is fixed on the pushing frame. A through hole for the rotating shaft to pass through is formed in the support frame. A bearing is sleeved on the rotating shaft, and the bearing is installed at the position of the through hole.

[0018] Further, a positioning assembly is fixed at the bottom of the support frame. The positioning assembly is arranged at the side of the drill head. The positioning assembly includes a positioning rod and a positioning head. The positioning rod is fixed at the bottom of the support frame. The positioning head is detachably arranged at the bottom of the positioning rod.

[0019] Further, the cutter head assembly further includes a positioning head storage box. The positioning head storage box is fixed on one side of the drill bit storage box and is pushed together with the drill bit storage box by the second pushing mechanism.

[0020] Further, the processing device includes a blowing assembly. The blowing assembly includes a blowing generator, an air inlet pipe, an annular frame, and a blowing nozzle. The blowing generator is arranged outside the drilling mechanism. The annular frame is fixedly sleeved on the rotating shaft. A gas channel is arranged inside the annular frame. An air outlet hole is arranged at the bottom of the annular frame. The air inlet pipe connects the blowing generator and the gas channel. The air outlet hole connects the gas channel. The blowing nozzle is fixed at the position of the air outlet hole, and the blowing nozzle blows air downward.

[0021] Further, the processing device includes a dust removal assembly. The dust removal assembly includes a suction mechanism, a telescopic bellows, a spring, a piston plate, a first dust removal cover, and a second dust removal cover. Both ends of the telescopic bellows are fixed between the annular frame and the piston plate. The piston plate is arranged below the telescopic bellows. The blowing nozzle and the rotating shaft pass through the piston plate. The spring is arranged outside the telescopic bellows and is fixed between the pushing frame and the piston plate. Both the first dust removal cover and the second dust removal cover are conical and are both fixed below the piston plate. The first dust removal cover is provided with air permeable holes. The second dust removal cover is sleeved outside the first dust removal cover and there is a gap between the two. The suction mechanism is respectively connected to the inner cavity of the telescopic bellows and the gap. The inner cavity of the telescopic bellows is also connected to the blowing generator.

[0022] The beneficial effects of the present invention are:

[0023] The present invention realizes the automatic loading and unloading of PCB boards by setting up a feeding mechanism. By setting up a fixed frame and a working board, more operating space is provided for the feeding mechanism. By reasonably setting the positions of the cutter head assembly and the feeding mechanism, the automatic loading and unloading, drilling, and tool changing operations do not interfere with each other. By setting up a blowing assembly and a dust removal assembly, dust removal is realized to prevent debris from adhering to the PCB board. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of the frame and the drilling mechanism in the present invention;

[0025] Figure 2 It is a schematic structural diagram of the feeding mechanism in the present invention;

[0026] Figure 3 It is a schematic structural diagram of the clamping part and the fastening part in the present invention;

[0027] Figure 4 It is a schematic structural diagram of the feeding mechanism during movement in the present invention;

[0028] Figure 5 It is a schematic structural diagram of the present invention in the drilling state;

[0029] Figure 6 It is a schematic structural diagram of the present invention in the state of changing the drilling head;

[0030] Figure 7 It is a schematic structural diagram of the drilling mechanism in the present invention;

[0031] Figure 8 It is a schematic structural diagram of the blowing assembly and the dust removal assembly in the present invention.

[0032] In the figure: 10, frame; 11, first linear module; 12, first movable frame; 13, second linear module; 20, feeding mechanism; 21, fixed frame; 211, first bracket; 212, second bracket; 213, third bracket; 22, working plate; 221, operation frame; 222, support plate; 223, working panel; 23, chute; 24, first guide wheel; 25, second guide wheel; 26, positioning groove; 27, roller; 28, protective cover; 29, elastic buckle body; 291, inclined surface; 292, arc surface; 30, cutter head assembly; 31, second pushing mechanism; 32, drill bit storage box; 33, positioning head storage box; 40, drilling mechanism; 41, second movable frame; 42, third pushing mechanism; 43, pushing frame; 44, drill bit assembly; 441, drive source; 442, rotating shaft; 443, drill bit; 444, support frame; 445, bearing; 446, positioning assembly; 4461, positioning rod; 4462, positioning head; 50, air blowing assembly; 51, annular frame; 52, air outlet hole; 53, air blowing nozzle; 60, dust removal assembly; 61, telescopic bellows; 62, spring; 63, piston plate; 64, first dust removal cover; 65, second dust removal cover; 66, buffer sliding pad; 67, air permeable hole. Detailed implementation mode

[0033] In order to make the technical problems, technical solutions and beneficial effects solved by the invention clearer and more understandable, the following further describes the invention in combination with the accompanying drawings and embodiments.

[0034] As Figures 1 to 8 shown, the present invention provides a PCB circuit board processing device, including a frame 10, a first linear module 11, a second linear module 13, a drilling mechanism 40, a feeding mechanism 20 and a cutter head assembly 30. The first linear module 11 is fixed on the frame 10, and a movable first movable frame 12 is provided on the first linear module 11. The second linear module 13 is fixed on the first movable frame 12. The moving direction of the first linear module 11 and the moving direction of the second linear module 13 are perpendicular, and the drilling mechanism 40 is movably arranged on the second linear module 13.

[0035] The feeding mechanism 20 includes a feeding mechanism, a fixed frame 21, a working plate 22 and a first pushing mechanism. The fixed frame 21 includes a first bracket 211, a second bracket 212 and a third bracket 213. The first bracket 211 and the second bracket 212 are arranged in parallel and fixed on the frame 10. The third bracket 213 is fixedly connected between the first bracket 211 and the second bracket 212. The first bracket 211, the second bracket 212 and the third bracket 213 are connected to form The shape is such that on the upper surfaces of the first bracket 211 and the second bracket 212, there are sliding grooves 23. At the first end of the sliding groove 23, a rotatable first guide wheel 24 is fixedly provided. On the lower surface of the working plate 22, there is a guide groove for the first guide wheel 24 to roll. At the bottom of the second end of the working plate 22, a clamping member and a rotatable second guide wheel 25 are fixedly provided. The second guide wheel 25 can slide within the sliding groove 23. Fastening members are fixed at the second ends of the first bracket 211 and the second bracket 212. The first pushing mechanism is used to push the working plate 22 to slide on the first bracket 211 and the second bracket 212. When the working plate 22 is pushed into the first bracket 211 and the second bracket 212, the drilling mechanism 40 performs drilling work. When the working plate 22 is pushed out of the first bracket 211 and the second bracket 212, the feeding mechanism places the PCB board on the working plate 22. On the working plate 22, there is a positioning groove 26 for positioning the PCB board;

[0036] The feeding mechanism and the first pushing mechanism are not shown in the figure. The feeding mechanism can adopt the method of using a robotic arm with a suction cup to adsorb the PCB board to achieve the feeding of the PCB board, including placing the PCB board on the working plate 22 and sucking the PCB board away from the working plate 22. This feeding mechanism can use existing technologies and will not be elaborated here. The first pushing mechanism can use a cylinder or the like for linear pushing, as long as it can push and pull the working plate 22. The clamping member is arranged outside the second guide wheel 25. When the working plate 22 is pushed into the first bracket 211 and the second bracket 212, the clamping member first contacts the fastening member and is fastened to the fastening member. When the working plate 22 is pushed out of the first bracket 211 and the second bracket 212, under the action of the first pushing mechanism, the clamping member disengages from the fastening member and moves with the working plate 22.

[0037] The cutter head assembly 30 includes a second pushing mechanism 31 and a drill bit storage box 32. The second pushing mechanism 31 and the drill bit storage box 32 are arranged outside the feeding mechanism 20. The second pushing mechanism 31 is used to push the drill bit storage box 32 away from and close to the drilling mechanism 40.

[0038] Reference Figure 6 , with the drilling mechanism 40 as the boundary, the feeding mechanism 20 and the cutter head assembly 30 are arranged on both sides of the drilling mechanism 40. The feeding mechanism 20 and the cutter head assembly 30 can reasonably allocate actions, and the feeding and discharging activities of the feeding mechanism 20 will not affect the activities of the cutter head assembly 30. Specifically, when the drilling mechanism 40 needs to change the drill bit 443, the working plate 22 leaves the first bracket 211 and the second bracket 212. At this time, only the fixed bracket 21 remains on the frame 10. There is a large cavity in the middle of the fixed bracket 21, which is convenient for the drill bit storage box 32 to approach the drilling mechanism 40.

[0039] Reference Figure 3, the card member includes a roller 27 which is rotatably fixed to the bottom of the second end of the working plate 22. The fastener includes a protective cover 28 and an elastic fastening body 29 fixed inside the protective cover 28. The elastic fastening body 29 includes an inclined surface 291 and an arc surface 292. The height of the bottommost part of the inclined surface 291 is less than the height of the topmost part of the arc surface 292. The roller 27 can roll along the inclined surface 291 into the arc surface 292. The inclined surface 291 slopes downward. Under the action of the first pushing mechanism, the roller 27 can smoothly enter the arc surface 292 along the inclined surface 291. On the other side of the arc surface 292, there is a blocking surface to prevent the roller 27 from escaping from the arc surface 292. When the first pushing mechanism acts in the reverse direction, it drives the roller 27 to overcome the resistance of the inclined surface 291 and escape from the inclined surface 291. The card member and the fastener are mutually fastened to further limit the position of the working plate 22 on the fixing frame 21 and ensure the accuracy of the punching position.

[0040] Reference Figure 4 , the working plate 22 includes an operation frame 221, a support plate 222 and a working panel 223. The operation frame 221 is fixed to the first end of the support plate 222. The movable end of the first pushing mechanism is fixedly connected to the operation frame 221 and pushes the operation frame 221. The working panel 223 is fixed on the support plate 222. The guide groove, the second guide wheel 25 and the card member are all arranged on the working panel 223. The support plate 222 provides further support for the working panel 223. The support plate 222 can contact the third support 213 to increase the bearing capacity during punching when the drilling mechanism 40 works.

[0041] Reference Figure 7 , the drilling mechanism 40 includes a second movable frame 41, a third pushing mechanism 42, a pushing frame 43 and a drill bit assembly 44. The second movable frame 41 is movably arranged on the second linear module 13. The third pushing mechanism 42 is fixed on the second movable frame 41. The movable end under the third pushing mechanism 42 is fixedly connected to a pushing frame 43. The drill bit assembly 44 is fixed on the pushing frame 43. The third pushing mechanism 42 can be a cylinder or a hydraulic cylinder.

[0042] The drill bit assembly 44 includes a drive source 441, a rotating shaft 442 and a drill bit 443. The drive source 441 is fixed on the pushing frame 43. The rotating shaft 442 is connected below the drive source 441 through a coupling, etc. The drill bit 443 is detachably arranged below the rotating shaft 442. The drive source 441 is a rotating motor.

[0043] A support frame 444 is fixed on the pushing frame 43. A through hole for the rotating shaft 442 to pass through is opened on the support frame 444. A bearing 445 is sleeved on the rotating shaft 442, and the bearing 445 is installed at the through hole position.

[0044] A positioning component 446 is fixed to the bottom of the support frame 444. The positioning component 446 is arranged on the side of the drilling head 443. The positioning component 446 includes a positioning rod 4461 and a positioning head 4462. The positioning rod 4461 is fixed to the bottom of the support frame 444, and the positioning head 4462 is detachably arranged at the bottom of the positioning rod 4461. The length of the positioning head 4462 is variable. By replacing the positioning heads 4462 with different lengths, the distance for the drilling head 443 to drill downward is limited, and the hole depth is limited.

[0045] The cutter head assembly 30 further includes a positioning head storage box 33. The positioning head storage box 33 is fixed to one side of the drill bit storage box 32 and is pushed together with the drill bit storage box 32 by the second pushing mechanism 31. When the drill bit storage box 32 and the positioning head storage box 33 are sent under the drilling mechanism 40 together, the drilling mechanism 40 moves left and right or back and forth according to requirements. First, the existing drilling head 443 and the positioning head 4462 are respectively placed in the drill bit storage box 32 and the positioning head storage box 33, and then the appropriate drilling head 443 and positioning head 4462 are replaced by itself. The detachable structure of the drilling head 443 and the positioning head 4462 can adopt the existing technology and will not be elaborated here.

[0046] Reference Figure 8 Moreover, the processing device includes a blowing component 50. The blowing component 50 includes a blowing generator, an air inlet pipe, an annular frame 51 and a blowing nozzle 53. The blowing generator is arranged outside the drilling mechanism 40. The annular frame 51 is fixedly sleeved on the rotating shaft 442 and is arranged under the support frame 444. A gas channel is arranged inside the annular frame 51. An air outlet hole 52 is arranged at the bottom of the annular frame 51. The air inlet pipe connects the blowing generator and the gas channel, and the air outlet hole 52 connects the gas channel. The blowing nozzle 53 is fixed at the position of the air outlet hole 52 and blows downward.

[0047] The blowing generator generates compressed gas. The compressed gas enters the gas channel inside the annular frame 51 from the air inlet pipe, and then flows from the gas channel through a plurality of air outlet holes 52 to a plurality of blowing nozzles 53. The plurality of blowing nozzles 53 are arranged along the circumference of the annular frame 51 and blow downward towards the drilling head 443. While blowing out the debris in the hole, it provides a cooling effect for the drilling head 443.

[0048] The processing device includes a dust removal assembly 60. The dust removal assembly 60 includes an air suction mechanism, a telescopic bellows 61, a spring 62, a piston plate 63, a first dust removal cover 64, and a second dust removal cover 65. The upper and lower ends of the telescopic bellows 61 are fixed between the annular frame 51 and the piston plate 63. The piston plate 63 is arranged below the telescopic bellows 61. The air blowing nozzle 53 is located inside the telescopic bellows 61. The air blowing nozzle 53 and the rotating shaft 442 pass through the piston plate 63. The spring 62 is arranged outside the telescopic bellows 61 and is fixed between the support frame 444 and the piston plate 63. Both the first dust removal cover 64 and the second dust removal cover 65 are conical and are both fixed below the piston plate 63. The first dust removal cover 64 is provided with ventilation holes 67. The second dust removal cover 65 is sleeved outside the first dust removal cover 64 and there is a gap between the two. The air suction mechanism is respectively connected to the inner cavity of the telescopic bellows 61 and the gap through a control valve. The inner cavity of the telescopic bellows 61 is also connected to a blowing generator. A buffer sliding pad 66 is fixed at the bottom of the second dust removal cover 65.

[0049] When drilling is required, the drill head 443 rotates and moves downward, the piston plate 63 moves upward, the telescopic bellows 61 and the spring 62 are compressed, the first dust removal cover 64 and the second dust removal cover 65 cover outside the drill head 443, and the debris blown up by the air blowing assembly 50 is sucked away by the air suction mechanism. Specifically, the control valve between the air suction mechanism and the gap is opened, the air suction mechanism works, sucks away the gas in the gap, thereby sucking away the gas in the inner cavity of the first dust removal cover 64, and sucks away the debris. Since the air suction mechanism does not directly suck away the gas in the inner cavity of the first dust removal cover 64, it will not directly affect the air blowing work of the air blowing nozzle 53. At the same time, due to the limited space of the gap, when the air suction mechanism sucks air quickly, an obvious air pressure difference will be formed between the gap and the outside world. In this way, the bottom of the second dust removal cover 65 will not separate from the PCB board under the drilling vibration force, avoiding air leakage. It should be noted that the bottom of the second dust removal cover 65 will contact the PCB board, but the first dust removal cover 64 may or may not contact the PCB board during drilling, and the height of the first dust removal cover 64 is not greater than the height of the second dust removal cover 65.

[0050] When the drill head 443 needs to be replaced, the control valve between the air suction mechanism and the inner cavity of the telescopic bellows 61 is opened, the air suction mechanism works, sucks away the gas in the telescopic bellows 61, the telescopic bellows 61 is compressed, the first dust removal cover 64 and the second dust removal cover 65 move upward, so that the drill head 443 can be successfully replaced. After the replacement is completed, the control valve between the blowing generator and the inner cavity of the telescopic bellows 61 is opened, the blowing generator works, blows air into the telescopic bellows 61, and the telescopic bellows 61 resumes.

[0051] Working principle: The first pushing mechanism pulls the working plate 22 out from the fixing frame 21. During the pulling process, the first guide wheel 24 slides along the guide groove, and the second guide wheel 25 slides within the sliding groove 23. When the second guide wheel 25 contacts the first guide wheel 24, the first pushing mechanism stops operating. The feeding mechanism sends the PCB board from the previous process to the working plate 22, and the positioning groove 26 defines the position of the PCB board on the working plate 22. Then, the first pushing mechanism pushes the working plate 22 back into the fixing frame 21 in the reverse direction. When the clamping part and the fastening part are mutually fastened, the first pushing mechanism stops operating. At this time, the drilling mechanism 40 starts to work. Under the control of the control device, the drilling mechanism 40 can move along the first linear module 11 and the second linear module 13 to achieve forward, backward, leftward, and rightward movement. The third pushing mechanism 42 pushes the drill bit assembly 44 downward to achieve up-and-down drilling movement. During the drilling process, the blowing component 50 blows air downward to blow out the debris in the hole and cool the drill bit 443. At the same time, the dust removal component 60 works to suck away the debris.

[0052] The present invention realizes the automatic loading and unloading of the PCB board by setting the feeding mechanism 20. By setting the fixing frame 21 and the working plate 22, more operating space is provided for the feeding mechanism. By reasonably setting the positions of the cutter head assembly 30 and the feeding mechanism 20, the automatic loading and unloading, drilling, and tool changing operations do not interfere with each other. By setting the blowing component 50 and the dust removal component 60, dust removal is realized to prevent debris from adhering to the PCB board.

[0053] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. A PCB circuit board processing device, characterized in that: include: Rack (10); A first linear module (11), the first linear module (11) being fixed on the frame (10), and a movable first movable frame (12) being provided on the first linear module (11); a second linear module (13), wherein the second linear module (13) is fixed on the first movable frame (12), and a moving direction of the first linear module (11) is perpendicular to a moving direction of the second linear module (13); a drilling mechanism (40), the drilling mechanism (40) being movably arranged on the second linear module (13); The feeding mechanism (20) comprises a feeding mechanism, a fixed frame (21), a working plate (22) and a first pushing mechanism, wherein the fixed frame (21) comprises a first bracket (211), a second bracket (212) and a third bracket (213), wherein the first bracket (211) and the second bracket (212) are arranged in parallel and fixed on the frame (10), and the third bracket (213) is fixedly connected between the first bracket (211) and the second bracket (212), and a slide groove (23) is provided on the upper surface of the first bracket (211) and the second bracket (212), and a rotatable first guide wheel (24) is fixedly provided in the first end of the slide groove (23), and a guide groove for the first guide wheel (24) to roll is provided on the lower surface of the working plate (22), and the second end of the working plate (22) is provided with a guide groove for the first guide wheel (24) to roll. A clamp and a rotatable second guide wheel (25) are fixedly provided at the bottom, the second guide wheel (25) can slide in the slide groove (23), the second ends of the first bracket (211) and the second bracket (212) are both fixed with fasteners, the first pushing mechanism is used to push the working plate (22) to slide on the first bracket (211) and the second bracket (212), when the working plate (22) is pushed into the first bracket (211) and the second bracket (212), the drilling mechanism (40) performs drilling work, when the working plate (22) is pushed out of the first bracket (211) and the second bracket (212), the feeding mechanism places the PCB board on the working plate (22), and the working plate (22) is provided with a positioning groove (26) for positioning the PCB board; A cutter head assembly (30), the cutter head assembly (30) comprising a second pushing mechanism (31) and a drill bit storage box (32), the second pushing mechanism (31) and the drill bit storage box (32) being arranged outside the feeding mechanism (20), the second pushing mechanism (31) being used for pushing the drill bit storage box (32) away from and towards the drilling mechanism (40).

2. A PCB circuit board processing device according to claim 1, characterized in that: The clamping member comprises a roller (27), the roller (27) being rotatably fixed to the bottom of the second end of the working plate (22), the fastener comprising a protective cover (28) and an elastic fastener body (29) fixed in the protective cover (28), the elastic fastener body (29) comprising an inclined surface (291) and an arcuate surface (292), the bottom height of the inclined surface (291) being smaller than the top height of the arcuate surface (292), the roller (27) being able to roll along the inclined surface (291) into the arcuate surface (292), the inclined surface (291) being inclined downward.

3. A PCB circuit board processing device according to claim 1, characterized in that: The working plate (22) comprises an operating frame (221), a supporting plate (222) and a working panel (223); the operating frame (221) is fixed to a first end of the supporting plate (222); the first pushing mechanism pushes the operating frame (221); the working panel (223) is fixed on the supporting plate (222); and the guide groove, the second guide wheel (25) and the clamping member are all arranged on the working panel (223).

4. A PCB circuit board processing device according to claim 1, characterized in that: The drilling mechanism (40) comprises a second movable frame (41), a third pushing mechanism (42), a pushing frame (43) and a drill assembly (44); the second movable frame (41) is movably arranged on the second linear module (13); the third pushing mechanism (42) is fixed on the second movable frame (41); the movable end under the third pushing mechanism (42) is fixedly connected to the pushing frame (43); and the drill assembly (44) is fixed on the pushing frame (43).

5. A PCB circuit board processing device according to claim 4, characterized in that: The drill bit assembly (44) comprises a driving source (441), a rotating shaft (442) and a drilling head (443); the driving source (441) is fixed on the pushing frame (43); the rotating shaft (442) is connected below the driving source (441); and the drilling head (443) is detachably arranged below the rotating shaft (442).

6. A PCB circuit board processing device according to claim 5, characterized in that: A support frame (444) is fixed on the pushing frame (43), a through hole is provided on the support frame (444) for the rotating shaft (442) to pass through, a bearing (445) is sleeved on the rotating shaft (442), and the bearing (445) is installed at the position of the through hole.

7. A PCB circuit board processing device according to claim 6, characterized in that: A positioning assembly (446) is fixed to the bottom of the support frame (444), and the positioning assembly (446) is arranged on the side of the drilling head (443). The positioning assembly (446) comprises a positioning rod (4461) and a positioning head (4462). The positioning rod (4461) is fixed to the bottom of the support frame (444), and the positioning head (4462) is detachably arranged at the bottom of the positioning rod (4461).

8. A PCB circuit board processing device according to claim 7, characterized in that: The tool head assembly (30) further comprises a positioning head storage box (33), wherein the positioning head storage box (33) is fixed to one side of the drill bit storage box (32) and is pushed along with the drill bit storage box (32) by the second pushing mechanism (31).

9. A PCB circuit board processing device according to claim 5, characterized in that: The processing device comprises an air blowing assembly (50), the air blowing assembly (50) comprising an air blowing generator, an air inlet pipe, an annular frame (51) and an air blowing nozzle (53), the air blowing generator being arranged outside the drilling mechanism (40), the annular frame (51) being fixedly sleeved on the rotating shaft (442), a gas channel being arranged inside the annular frame (51), an air outlet hole (52) being arranged at the bottom of the annular frame (51), the air inlet pipe being connected to the air blowing generator and the gas channel, the air outlet hole (52) being connected to the gas channel, the air blowing nozzle (53) being fixed at the position of the air outlet hole (52), and the air blowing nozzle (53) blowing downwards.

10. A PCB circuit board processing device according to claim 9, characterized in that: The processing device comprises a dust removal component (60), the dust removal component (60) comprising an air suction mechanism, a telescopic bellows (61), a spring (62), a piston plate (63), a first dust removal cover (64) and a second dust removal cover (65), the two ends of the telescopic bellows (61) being fixed between the annular frame (51) and the piston plate (63), the piston plate (63) being arranged under the telescopic bellows (61), the air blowing nozzle (53) and the rotating shaft (442) passing through the piston plate (63), the spring (62) being arranged on the telescopic bellows (61) and the first dust removal cover (64) and the second dust removal cover (65), The first dust cover (64) and the second dust cover (65) are both conical and fixed under the piston plate (63); the first dust cover (64) and the second dust cover (65) are both conical and fixed under the piston plate (63); the first dust cover (64) is provided with an air vent (67); the second dust cover (65) is sleeved outside the first dust cover (64) with a gap between the two; the air suction mechanism is respectively connected to the inner cavity of the telescopic bellows (61) and the gap; the inner cavity of the telescopic bellows (61) is also connected to the blowing generator.

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