Printed circuit board (PCB) processing device

Abstract

The invention discloses a PCB processing device, and relates to the technical field of PCB processing, the PCB processing device comprises a rack, a first linear module, a second linear module, a drilling mechanism, a feeding mechanism and a tool bit assembly, the first linear module is fixed on the rack, the first linear module is provided with a movable first movable frame, and the second linear module is provided with a second movable frame; the first linear module is fixed to the first movable frame, the second linear module is fixed to the first movable frame, the moving direction of the first linear module is perpendicular to the moving direction of the second linear module, the drilling mechanism is movably arranged on the second linear module, and the machining device achieves automatic feeding and discharging of PCBs and provides more operation space for a feeding mechanism.

Description

Technical Field

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

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

[0003] PCB circuit boards need to be drilled during manufacturing. The drilled holes generally include through holes and blind holes. Through holes achieve conductive connection by copper plating on the hole wall, and blind holes can be used as positioning holes, etc. Currently, manual feeding is used when drilling PCB circuit boards, and the PCB circuit boards are manually placed at the drilling position, which is time-consuming and labor-intensive. Summary of the invention

[0004] In view of the defects of 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 labor-intensive manual placement.

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

[0006] A PCB circuit board processing device, comprising:

[0007] 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, wherein the second linear module is fixed on the first movable frame, and a moving direction of the first linear module is perpendicular to a moving direction of the second linear module;

[0010] A drilling mechanism, the drilling mechanism being movably disposed on the second linear module;

[0011] The feeding mechanism comprises a feeding mechanism, a fixing frame, a working plate and a first pushing mechanism, the fixing frame comprises 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 frame, the third bracket is fixedly connected between the first bracket and the second bracket, a slide groove is provided on the upper surfaces of the first bracket and the second bracket, a rotatable first guide wheel is fixedly provided in the first end of the slide groove, a guide groove for the first guide wheel to roll is provided on the lower surface of the working plate, a clamp and a rotatable second guide wheel are fixedly provided at the bottom of the second end of the working plate, the second guide wheel can slide in the slide groove, and a fastener is fixed at the second end 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, and when the working plate pushes out the first bracket and the second bracket, the feeding mechanism places the PCB board on the working plate, and a positioning groove for positioning the PCB board is provided on the working plate;

[0012] The tool bit assembly comprises a second pushing mechanism and a drill bit storage box, wherein the second pushing mechanism and the drill bit storage box are arranged on the outside of the feeding mechanism, and the second pushing mechanism is used to push the drill bit storage box away from and close to the drilling mechanism.

[0013] Furthermore, the clamp includes a roller, which is rotatably fixed to the bottom of the second end of the working plate, and the buckle includes a protective cover and an elastic buckle body fixed in the protective cover, and the elastic buckle body includes an inclined surface and an arcuate surface, and the bottom height of the inclined surface is less than the top height of the arcuate surface, and the roller can roll into the arcuate surface along the inclined surface, and the inclined surface is inclined downward.

[0014] Furthermore, the working plate includes an operating frame, a support plate and a working panel, the operating frame is fixed to the first end of the support plate, the first pushing mechanism pushes the operating frame, the working panel is fixed to the support plate, and the guide groove, the second guide wheel and the clamp are all arranged on the working panel.

[0015] Furthermore, 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 to the pushing frame, and the drill bit assembly is fixed on the pushing frame.

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

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

[0018] Furthermore, a positioning assembly is fixed to the bottom of the support frame, the positioning assembly is arranged on the side of the drilling head, the positioning assembly includes a positioning rod and a positioning head, the positioning rod is fixed to the bottom of the support frame, and the positioning head is detachably arranged at the bottom of the positioning rod.

[0019] Furthermore, the tool head assembly also includes a positioning head storage box, which is fixed to one side of the drill bit storage box and is pushed along with the drill bit storage box by the second pushing mechanism.

[0020] Furthermore, the processing device includes an air blowing assembly, which includes a air blowing generator, an air inlet pipe, an annular frame and an air blowing nozzle, the air blowing generator is arranged outside the drilling mechanism, the annular frame is fixedly sleeved on the rotating shaft, a gas channel is provided in the annular frame, an air outlet is provided at the bottom of the annular frame, the air inlet pipe connects the air blowing generator and the gas channel, the air outlet is connected to the gas channel, the air blowing nozzle is fixed at the position of the air outlet, and the air blowing nozzle blows air downward.

[0021] Furthermore, the processing device includes a dust removal assembly, which includes an air suction mechanism, a telescopic bellows, a spring, a piston plate, a first dust cover and a second dust cover, the two ends of the telescopic bellows are fixed between the annular frame and the piston plate, the piston plate is arranged under the telescopic bellows, the blowing nozzle and the rotating shaft pass through the piston plate, the spring is arranged outside the telescopic bellows and fixed between the pushing frame and the piston plate, the first dust cover and the second dust cover are both conical and fixed under the piston plate, the first dust cover is provided with an air vent, the second dust cover is sleeved outside the first dust cover with a gap between the two, the air suction mechanism is respectively connected to the inner cavity of the telescopic bellows and the gap, and 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 automatic loading and unloading of PCB boards by arranging a feeding mechanism, provides more operating space for the feeding mechanism by arranging a fixing frame and a working plate, realizes automatic loading and unloading, drilling and head changing without interference by reasonably arranging the positions of a cutter head assembly and a feeding mechanism, realizes dust removal by arranging an air blowing assembly and a dust removal assembly, and prevents debris from being adsorbed on the PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0026] Figure 3 It is a schematic diagram of the structure of the clamp and the fastener in the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the feeding mechanism of the present invention when it is active;

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

[0029] Figure 6 It is a schematic diagram of the structure of the present invention when the drilling head is replaced;

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

[0031] Figure 8 It is a structural schematic diagram of the air blowing component and the dust removal component 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, operating frame; 222, support plate; 223, working panel; 23, slide; 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; 3 3. Positioning head storage box; 40. Drilling mechanism; 41. Second movable frame; 42. Third pushing mechanism; 43. Pushing frame; 44. Drill head assembly; 441. Driving source; 442. Rotating shaft; 443. Drilling head; 444. Support frame; 445. Bearing; 446. Positioning assembly; 4461. Positioning rod; 4462. Positioning head; 50. Blowing assembly; 51. Ring frame; 52. Air outlet; 53. Blowing nozzle; 60. Dust removal assembly; 61. Telescopic bellows; 62. Spring; 63. Piston plate; 64. First dust cover; 65. Second dust cover; 66. Buffer sliding pad; 67. Air vent. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects solved by the invention more clearly understood, the invention is further described below in conjunction with the accompanying drawings and embodiments.

[0034] like Figures 1 to 8 As 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 tool head assembly 30, the first linear module 11 is fixed on the frame 10, 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 is perpendicular to the moving direction of the second linear module 13, and the drilling mechanism 40 is movably arranged on the second linear module 13.

[0035] The feeding mechanism 20 includes a feeding mechanism, a fixing frame 21, a working plate 22 and a first pushing mechanism. The fixing 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 first bracket 211 and the second bracket 212 are provided with a slide groove 23 on the upper surface, a rotatable first guide wheel 24 is fixedly provided in the first end of the slide groove 23, a guide groove for the first guide wheel 24 to roll is provided on the lower surface of the working plate 22, a clamp and a rotatable second guide wheel 25 are fixedly provided at the bottom of the second end of the working plate 22, 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 a positioning groove 26 for positioning the PCB board is provided on the working plate 22;

[0036] The feeding mechanism and the first pushing mechanism are not shown in the figure. The feeding mechanism can adopt the method of mechanical arm carrying suction cup to absorb PCB board to realize the feeding of PCB board, including placing PCB board on the working plate 22 and sucking PCB board from the working plate 22. The feeding mechanism can adopt the existing technology, which will not be repeated here. The first pushing mechanism can adopt cylinder and the like to push linearly, as long as it can push and pull the working plate 22. The clamp is arranged on the outside of the second guide wheel 25. When the working plate 22 is pushed into the first bracket 211 and the second bracket 212, the clamp first contacts the fastener and is fastened on the fastener. 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 clamp is separated from the fastener 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] refer to 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 distribute the 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 replace the drilling head 443, the working plate 22 leaves the first bracket 211 and the second bracket 212. At this time, only the fixed frame 21 is left on the frame 10. There is a large cavity in the middle of the fixed frame 21, which is convenient for the drill storage box 32 to be close to the drilling mechanism 40.

[0039] refer to Figure 3The clamp includes a roller 27, which is rotatably fixed at the bottom of the second end of the working plate 22. The fastener includes a protective cover 28 and an elastic fastener body 29 fixed in the protective cover 28. The elastic fastener body 29 includes an inclined surface 291 and an arc surface 292. The bottom height of the inclined surface 291 is less than the top height of the arc surface 292. The roller 27 can roll into the arc surface 292 along the inclined surface 291. The inclined surface 291 is inclined downward. Under the action of the first pushing mechanism, the roller 27 can smoothly enter the arc surface 292 along the inclined surface 291. A blocking surface is provided on the other side of the arc surface 292 to prevent the roller 27 from escaping from the arc surface 292. When the first pushing mechanism acts in the reverse direction, the roller 27 is driven to overcome the resistance of the inclined surface 291 and escape from the inclined surface 291. The clamp and the fastener are interlocked to further limit the position of the working plate 22 on the fixing frame 21 and ensure the accuracy of the opening position.

[0040] refer to Figure 4 The working plate 22 includes 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 movable end of the first pushing mechanism is fixedly connected to the operating frame 221 and pushes the operating frame 221. The working panel 223 is fixed to the supporting plate 222. The guide groove, the second guide wheel 25 and the clamp are all arranged on the working panel 223. The supporting plate 222 provides further support for the working panel 223. The supporting plate 222 can contact the third bracket 213 to increase the tolerance of punching when the drilling mechanism 40 is working.

[0041] refer to Figure 7 The drilling mechanism 40 includes 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. The third pushing mechanism 42 can be a pneumatic cylinder or a hydraulic cylinder.

[0042] The drill bit assembly 44 includes 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 to the driving source 441 through a coupling, etc. The drilling head 443 is detachably arranged under the rotating shaft 442. The driving source 441 is a rotating motor.

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

[0044] A positioning assembly 446 is fixed to the bottom of the support frame 444. The positioning assembly 446 is arranged on the side of the drilling head 443. The positioning assembly 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 not fixed. By replacing the positioning head 4462 of different lengths, the distance of the drilling head 443 drilling downwards and the hole depth are limited.

[0045] The cutter head assembly 30 further includes a positioning head storage box 33, which 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 to the drilling mechanism 40 together, the drilling mechanism 40 moves left and right or forward and backward according to the needs, and the existing drilling head 443 and positioning head 4462 are first placed in the drill bit storage box 32 and the positioning head storage box 33 respectively, and then the appropriate drilling head 443 and positioning head 4462 are replaced by themselves. The detachable structure of the drilling head 443 and the positioning head 4462 can adopt the existing technology, which will not be repeated here.

[0046] refer to Figure 8 The processing device includes a blowing assembly 50, which 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 arranged under the supporting frame 444, a gas channel is arranged in the annular frame 51, and an air outlet hole 52 is arranged at the bottom of the annular frame 51. The air inlet pipe is connected to the blowing generator and the gas channel, the air outlet hole 52 is connected to the gas channel, and the blowing nozzle 53 is fixed at the position of the air outlet hole 52, and the blowing nozzle 53 blows air downward.

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

[0048] The processing device includes a dust removal component 60, which includes an air suction mechanism, a telescopic bellows 61, a spring 62, a piston plate 63, a first dust cover 64 and a second dust 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 under the telescopic bellows 61. The blowing nozzle 53 is located inside the telescopic bellows 61. The 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 fixed between the support frame 444 and 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 connected to the inner cavity and the gap of the telescopic bellows 61 respectively through a control valve, and the inner cavity of the telescopic bellows 61 is also connected to the blowing generator. A buffer pad 66 is fixed to the bottom of the second dust removal cover 65 .

[0049] When drilling is required, the drilling 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 cover 64 and the second dust cover 65 cover the outside of the drilling head 443, and the debris blown up by the blowing assembly 50 is sucked away by the suction mechanism. Specifically, the control valve between the suction mechanism and the gap is opened, and the suction mechanism works to suck away the gas in the gap and thereby suck away the gas in the inner cavity of the first dust cover 64, and suck away the debris. Since the suction mechanism will not directly suck away the gas in the inner cavity of the first dust cover 64, it will not directly affect the blowing work of the blowing nozzle 53. At the same time, due to the limited space of the gap, when the suction mechanism quickly inhales air, an obvious air pressure difference will be formed in the gap with the outside world, so that the bottom of the second dust cover 65 will not automatically detach from the PCB board under the drilling vibration force, thereby avoiding air leakage. It should be noted that the bottom of the second dust cover 65 will contact the PCB board, but the first dust cover 64 may or may not contact the PCB board when drilling, and the height of the first dust cover 64 is not greater than the height of the second dust cover 65.

[0050] When the drilling head 443 needs to be replaced, the control valve between the suction mechanism and the inner cavity of the telescopic bellows 61 is opened, the suction mechanism works to suck away the gas in the telescopic bellows 61, the telescopic bellows 61 is compressed, and the first dust cover 64 and the second dust cover 65 move up, so that the drilling head 443 is 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 to blow air into the telescopic bellows 61, and the telescopic bellows 61 is restored.

[0051] Working principle: The first pushing mechanism pulls the working plate 22 out of 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 in the slide groove 23. When the second guide wheel 25 contacts the first guide wheel 24, the first pushing mechanism stops moving, and the feeding mechanism sends the PCB board of 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 until the card and the fastener are engaged with each other. The first pushing mechanism stops moving, and the drilling mechanism 40 starts working at this time. 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 realize forward, backward, left and right movement. The third pushing mechanism 42 pushes the drill assembly 44 downward to realize up and down drilling movement. During the drilling process, the blowing assembly 50 blows air downward to blow out the debris in the hole and cool down the drilling head 443. At the same time, the dust removal assembly 60 works to suck away the debris.

[0052] The present invention realizes automatic loading and unloading of PCB boards by providing a feeding mechanism 20, provides more operating space for the feeding mechanism by providing a fixing frame 21 and a working plate 22, realizes automatic loading and unloading, drilling and head changing without interference by reasonably setting the positions of the cutter head assembly 30 and the feeding mechanism 20, and realizes dust removal by providing an air blowing assembly 50 and a dust removal assembly 60 to prevent debris from being adsorbed on the PCB board.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles 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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