A circuit board processing system with high-efficiency dust removal function

Abstract

This invention discloses a circuit board processing system with high-efficiency dust removal function, relating to the field of circuit board manufacturing technology. It includes a processing table and a protective cover. A positioning platform is fixed to the top of the processing table, and an adsorption positioning mechanism is provided on the positioning platform. The invention uses a blower to blow high-speed air into the interior of an annular cylinder, causing the high-speed airflow inside the annular cylinder to blow towards the drill bit through the air holes. This achieves heat dissipation and cooling while blowing off residual dust on the drill bit surface. Furthermore, a snap-fit ​​connection mechanism allows the drill bit to be detachably installed on the bottom of the mounting plate, ensuring secure installation while facilitating quick and easy disassembly after prolonged use. Additionally, a dust removal fan drives a dust extraction hood to draw the flue gas and dust drifting inside the protective cover into a first dust extraction pipe, which then sequentially passes through a cyclone dust collector, an electrostatic dust collector, and a filter membrane bag for filtration and purification, effectively removing and purifying the dust generated during the drilling process.

Description

Technical Field

[0001] This invention relates to the field of circuit board manufacturing technology, and in particular to a circuit board processing system with efficient dust removal function. Background Technology

[0002] A printed circuit board (PCB) is a core component in electronic devices used to connect and support electronic components. It consists of conductive lines, pads, and an insulating substrate, and is the "skeleton" and "nervous system" of modern electronic products. Its core components are the substrate, conductive layer, pads and vias, and silkscreen layer. The substrate is typically made of fiberglass, ceramic, or flexible materials, providing mechanical support and insulation. The conductive layer is usually copper foil etched with specific lines to achieve electrical connections between components. Pads and vias are used to solder component leads and for interlayer conductive connections. The silkscreen layer is used to mark component locations, polarity, and other information to aid in assembly.

[0003] In the production and processing of circuit boards, corresponding drilling equipment is needed to drill holes in the circuit board raw materials to form vias. Existing circuit board drilling equipment is mostly single-function, making it difficult to cool the drill bit and remove residual dust, which can easily affect the drill bit's lifespan and drilling accuracy. Furthermore, most drill bits are bolt-fixed, which cannot ensure both secure installation and easy disassembly, hindering convenient replacement. In addition, the existing dust extraction structures of circuit board drilling equipment are relatively simple, unable to effectively remove and purify the smoke and dust generated during drilling, easily leading to air pollution and being environmentally unfriendly. Therefore, this invention proposes a circuit board processing system with high-efficiency dust removal to solve the problems existing in the prior art. Summary of the Invention

[0004] To address the aforementioned problems, the present invention aims to propose a circuit board processing system with efficient dust removal function, solving the problems of existing circuit board drilling processing equipment that is inconvenient for cooling the drill bit and removing residual dust, cannot ensure easy disassembly while ensuring the drill bit is securely installed, and has a relatively simple smoke and dust removal structure that cannot effectively remove and purify the smoke and dust generated during the drilling process.

[0005] To achieve the purpose of this invention, the invention is implemented through the following technical solution: a circuit board processing system with efficient dust removal function, including a processing table and a protective cover, a positioning table is fixed at the top of the processing table, an adsorption positioning mechanism is provided on the positioning table, a first alignment plate driven by a first cylinder is provided on both the front and rear sides of the positioning table, a second alignment plate driven by a second cylinder is provided on both the left and right sides of the positioning table, and an auxiliary limiting mechanism is provided on the second alignment plate;

[0006] Above the positioning platform is a translation plate that is driven to move by a translation adjustment mechanism. The bottom end of the translation plate is connected to a drilling motor via a hydraulic cylinder. The output end of the drilling motor is fixed with a mounting plate. The bottom end of the mounting plate is detachably mounted with a drill bit via a snap-fit ​​docking mechanism. An annular cylinder is suspended below the drilling motor. Both outer walls of the annular cylinder are connected to exhaust fans via air supply hoses. The inner walls of the four sides of the annular cylinder are provided with air blowing holes that communicate with the air supply hoses.

[0007] The protective cover is symmetrically provided with dust collection hoods on the rear side inside. A first dust collection pipe is fixed to the rear side of the dust collection hood and extends to the outside of the protective cover. A dust removal fan is installed on the first dust collection pipe, and a composite dust removal component is connected to the end of the first dust collection pipe located outside the protective cover.

[0008] A further improvement is that the adsorption positioning mechanism includes a cavity opened inside the positioning table and an adsorption plate fitted and fixed to the top of the positioning table. The adsorption plate has adsorption holes distributed in an array. A dustproof net is spaced between the adsorption plate and the cavity. A vacuum pump is fixed inside the processing table, and the air inlet of the vacuum pump extends into the cavity.

[0009] A further improvement is that the composite dust removal assembly includes a cyclone dust collector connected to a first dust extraction pipe and an electrostatic dust collector connected to the cyclone dust collector via a second dust extraction pipe. A filter membrane bag is detachably installed on the side of the electrostatic dust collector away from the protective cover.

[0010] A further improvement is that: a conical funnel tube is fixed at the bottom of the cyclone dust collector, a dust collection box is installed at the bottom of the conical funnel tube, and an exhaust pipe connected to the second dust extraction pipe is fixed through the top of the cyclone dust collector. The end of the first dust extraction pipe away from the protective cover penetrates tangentially into the interior of the cyclone dust collector and allows the dust-laden gas to enter the cyclone dust collector tangentially.

[0011] Further improvements include: an electrostatic dust removal screen with built-in vibration function is fixed inside the electrostatic dust removal box; an opening is provided at the bottom of the electrostatic dust removal box below the electrostatic dust removal screen; a dust collection trough is installed at the bottom of the electrostatic dust removal box below the electrostatic dust removal screen; an exhaust pipe is fixed on the side of the electrostatic dust removal box near the filter membrane bag; and an exhaust fan is fixed inside the exhaust pipe.

[0012] A further improvement is that: a mating ring adapted to the exhaust pipe is fixed at one end of the filter membrane bag near the electrostatic dust collector; a sealing ring is fitted between the exhaust pipe and the mating ring; a first semi-circular threaded post is fixed on the upper and lower outer walls of the exhaust pipe; a second semi-circular threaded post is fixed on the upper and lower outer walls of the mating ring; and a nut ring is threaded onto both the first and second semi-circular threaded posts.

[0013] A further improvement is that the auxiliary limiting mechanism includes a third cylinder fixed to the second positioning plate and a movable pressure plate fixed to the output end of the third cylinder. A fixed pressure plate adapted to the movable pressure plate is fixed to the lower part of the outer wall of the second positioning plate near the positioning platform.

[0014] A further improvement is that the translation adjustment mechanism includes an X-axis linear module fixed to the top of the inside of the protective cover and a Y-axis linear module fixed to the output end of the X-axis linear module, and the translation plate is fixed to the output end of the Y-axis linear module.

[0015] A further improvement is that: a fixing block is fixed to both outer walls of the annular cylinder, a sleeve is fixed to the top of the fixing block, and a sliding rod is symmetrically fixed to the bottom of the drilling motor. The bottom of the sliding rod slides through into the inside of the sleeve and is fixed with a stop block.

[0016] A further improvement is made in that: the snap-fit ​​docking mechanism includes an upper docking post fixed to the bottom of the mounting plate and a lower docking post fixed to the top of the drill bit. The bottom of the upper docking post is fixed with a fitting block, and the top of the lower docking post is provided with a fitting groove adapted to the fitting block. L-shaped locking blocks are fixed on both outer walls of the upper docking post. An elastic pin slides through the L-shaped locking block. An insertion hole adapted to the elastic pin is provided on the outer wall of the lower docking post. A slot is provided inside the L-shaped locking block. A spring plate is fixedly sleeved on the side of the elastic pin located in the slot. A limit spring is fixed between the inner wall of the slot away from the upper docking post and the spring plate.

[0017] The beneficial effects of the present invention are as follows: The present invention suspends an annular cylinder around the drill bit below the drilling motor, and uses a blower to blow air at high speed inside the annular cylinder during the drilling process. The high-speed airflow inside the annular cylinder blows the air through the air hole to the drill bit, thereby achieving heat dissipation and cooling while blowing off the dust remaining on the surface of the drill bit. This extends the service life of the drill bit to a certain extent and ensures the drilling accuracy.

[0018] Furthermore, the drill bit is detachably installed on the bottom of the mounting plate via a snap-fit ​​connection mechanism, which ensures the drill bit is securely installed while allowing for quick and easy disassembly and assembly after prolonged use, making it convenient to use.

[0019] In addition, by starting the dust removal fan to drive the dust collection hood, the flue gas and dust floating inside the protective cover are sucked into the first dust extraction pipe. Then, they are filtered and purified in sequence through the cyclone dust collector, electrostatic dust collector and filter membrane bag. This allows the flue gas and dust generated during the drilling process to be efficiently removed and purified, avoiding pollution of the outside air and making the entire circuit board processing process more environmentally friendly. Attached Figure Description

[0020] Figure 1 This is a front view of the present invention;

[0021] Figure 2 This is a front sectional view of the present invention;

[0022] Figure 3 This is a side sectional view of the present invention;

[0023] Figure 4 This is a side sectional view of the composite dust removal component of the present invention;

[0024] Figure 5 This is a side sectional view of the exhaust pipe and docking ring of the present invention;

[0025] Figure 6 This is a cross-sectional view of the annular cylinder of the present invention;

[0026] Figure 7 This is a cross-sectional view of the upper and lower connecting columns of the present invention.

[0027] The components include: 1. Processing table; 2. Protective cover; 3. Positioning table; 4. First cylinder; 5. First alignment plate; 6. Second cylinder; 7. Second alignment plate; 8. Translation plate; 9. Hydraulic cylinder; 10. Drilling motor; 11. Mounting plate; 12. Drill bit; 13. Annular cylinder; 14. Air supply hose; 15. Exhaust fan; 16. Air blowing port; 17. Dust collection hood; 18. First dust extraction pipe; 19. Dust removal fan; 20. Cavity; 21. Adsorption plate; 22. Vacuum pump; 23. Cyclone dust collector; 24. Second dust extraction pipe; 25. Electrostatic dust collector; 26. Filter membrane bag; 27. Conical... 28. Funnel tube; 29. ​​Dust collection box; 30. Air outlet pipe; 31. Electrostatic dust removal screen; 32. Exhaust pipe; 33. Connecting ring; 34. First semi-circular threaded post; 35. Second semi-circular threaded post; 36. Nut ring; 37. Third cylinder; 38. Movable pressure plate; 39. Fixed pressure plate; 40. X-axis linear module; 41. Y-axis linear module; 42. Fixed block; 43. Sleeve; 44. Slide rod; 45. Stop block; 46. Upper connecting post; 47. Lower connecting post; 48. Fitting block; 49. L-shaped locking block; 50. Elastic pin; 51. Insertion hole; 52. Empty slot; 53. Spring sheet. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Circuit boards generally refer to circuit boards. The names of circuit boards include: ceramic circuit boards, alumina ceramic circuit boards, aluminum nitride ceramic circuit boards, circuit boards, PCB boards, aluminum substrate boards, high frequency boards, thick copper boards, impedance boards, PCBs, ultra-thin circuit boards, ultra-thin circuit boards, printed circuit boards (copper etching technology), etc.

[0030] Circuit boards make circuits miniaturized and more intuitive, playing an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. Before being put into use, circuit boards need to be drilled or otherwise processed.

[0031] In this embodiment, both the X-axis linear module 39 and the Y-axis linear module 40 are synchronous belt type linear modules, mainly made of belts, linear guides, aluminum alloy profiles, couplings, motors, photoelectric switches and other components, which are existing technologies and will not be described in detail in this embodiment.

[0032] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, this embodiment provides a circuit board processing system with efficient dust removal function. The device includes a horizontally arranged processing table 1 and a protective cover 2 welded and fixed to the top of the processing table 1. Batteries are provided on both sides inside the processing table 1. A controller is provided on the front of the processing table 1. The front of the protective cover 2 is open. A positioning table 3 for placing the circuit board material to be processed is fixed to the top of the processing table 1 by bolts. The positioning table 3 is provided with an adsorption positioning mechanism for adsorbing and positioning the circuit board material, which can ensure the firmness of the circuit board material to a certain extent. The front and rear sides of the positioning table 3 are provided with first alignment plates 5 for calibrating and limiting the position of the circuit board material. The first alignment plates 5 are driven by a first cylinder 4 and move longitudinally back and forth. When the two sets of first alignment plates 5 move towards each other, the front and rear sides of the circuit board material can be limited. The left and right sides of the positioning table 3 are provided with second alignment plates 7 for calibrating and limiting the position of the circuit board material. The second alignment plates 7 are driven by a second cylinder 6 and move laterally left and right. The second alignment plates 7 are provided with an auxiliary limiting mechanism, which can clamp and limit the left and right edge positions of the circuit board material.

[0033] A translation plate 8 is provided above the positioning platform 3. The translation plate 8 is driven by the translation adjustment mechanism to perform horizontal displacement in the left, right and forward and backward directions. A hydraulic cylinder 9 is fixed to the bottom end of the translation plate 8 by bolts. A drilling motor 10 is fixed to the output end of the hydraulic cylinder 9 by bolts. The output shaft of the drilling motor 10 is fixed to the mounting plate 11 by bolts. A drill bit 12 for drilling circuit board raw materials is detachably installed at the bottom end of the mounting plate 11. The drill bit 12 and the mounting plate 11 are locked together by a snap-fit ​​docking mechanism. The drill bit 12 is detachably installed at the bottom end of the mounting plate 11 by the snap-fit ​​docking mechanism, so that the drill bit 12 can be quickly disassembled and assembled after long-term use while ensuring the installation is firm.

[0034] A ring cylinder 13 is suspended below the drilling motor 10 and surrounds the drill bit 12. Air supply hoses 14 are fixed to the outer walls of the left and right sides of the ring cylinder 13. The side walls of the ring cylinder 13 are hollow and connected to the air supply hoses 14. A blower 15 connected to the air supply hoses 14 is fixed to the outer walls of the left and right sides of the drilling motor 10 by bolts. Air blowing holes 16 are opened on the inner walls of the four sides of the ring cylinder 13 to facilitate the airflow in the side walls of the ring cylinder 13. By suspending the ring cylinder 13 around the drill bit 12 below the drilling motor 10 and using the blower 15 to blow air at high speed into the inside of the ring cylinder 13 during the drilling process, the high-speed airflow in the ring cylinder 13 is blown from the air blowing holes 16 to the drill bit 12, heat dissipation and cooling are achieved while blowing off the dust remaining on the surface of the drill bit 12.

[0035] The protective cover 2 has two sets of dust suction hoods 17 arranged symmetrically on the left and right sides on the rear side. A first dust suction pipe 18 is fixed to the rear side of the dust suction hood 17 and extends to the rear side of the protective cover 2. A dust removal fan 19 is installed on the first dust suction pipe 18 to drive the dust suction hood 17 to remove the smoke-containing air inside the protective cover 2. A composite dust removal component that performs multi-stage high-efficiency filtration and purification of the smoke-containing air is fixed at one end of the first dust suction pipe 18 located outside the protective cover 2.

[0036] The adsorption positioning mechanism includes a cavity 20 and an adsorption plate 21. The cavity 20 is located inside the positioning stage 3. The adsorption plate 21 is fitted and fixed to the top of the positioning stage 3 to provide support for the circuit board material and can be drilled by the drill bit 12. The adsorption plate 21 has an array of adsorption holes. A dustproof net is placed between the adsorption plate 21 and the cavity 20 to intercept drilling debris and prevent it from being sucked into the cavity 20. The dustproof net needs to be cleaned regularly to avoid clogging and affecting adsorption. A vacuum pump 22 is fixed inside the processing table 1. The air inlet of the vacuum pump 22 extends into the cavity 20, and the air outlet of the vacuum pump 22 extends to the bottom of the processing table 1. The vacuum pump 22 draws air from the cavity 20, thereby generating suction in the adsorption holes on the adsorption plate 21, thus adsorbing and positioning the circuit board material to a certain extent.

[0037] The composite dust removal assembly includes a cyclone dust collector 23 for preliminary dust removal of air containing smoke and dust and an electrostatic dust collector 25 for secondary dust removal of air containing smoke and dust. The cyclone dust collector 23 is connected to the first dust extraction pipe 18, and the electrostatic dust collector 25 is connected above the cyclone dust collector 23 through the second dust extraction pipe 24. A filter membrane bag 26 for tertiary dust removal of air containing smoke and dust is detachably installed on the side of the electrostatic dust collector 25 away from the protective cover 2. By starting the dust removal fan 19, the dust extraction cover 17 is driven to draw the smoke and dust floating inside the protective cover 2 into the first dust extraction pipe 18, and then the smoke and dust are filtered and purified sequentially through the cyclone dust collector 23, the electrostatic dust collector 25 and the filter membrane bag 26, so that the smoke and dust generated during the drilling process can be effectively removed and purified.

[0038] A conical funnel tube 27 connected to the bottom of the cyclone dust collector 23 is welded and fixed thereto. A dust collection box 28 is installed at the bottom of the conical funnel tube 27 by bolts. An exhaust pipe 29 is fixed through the top of the cyclone dust collector 23, and the top of the exhaust pipe 29 is connected to the bottom of the second dust extraction pipe 24 by a sealing flange. The end of the first dust extraction pipe 18 away from the protective cover 2 penetrates tangentially into the cyclone dust collector 23 and allows the dust-laden gas to enter the cyclone dust collector 23 tangentially. The dust-laden gas forms a high-speed rotating outer vortex along the inner wall of the cyclone dust collector 23. Under the action of centrifugal force, the dust particles are thrown towards the inner wall of the cyclone dust collector 23. Then, under the action of gravity, they settle down into the dust collection box 28 along the inner wall of the conical funnel tube 27. The gas after preliminary purification forms an inner vortex in the central area and is discharged from the second dust extraction pipe 24 from the exhaust pipe 29 at the top.

[0039] An electrostatic precipitator 25 contains a fixed electrostatic precipitator mesh 30, which is equipped with a vibration mechanism and has a vibration function. An opening is located at the bottom of the electrostatic precipitator 25 below the electrostatic precipitator mesh 30. A dust collection trough is installed at the bottom of the electrostatic precipitator 25 below the electrostatic precipitator mesh 30. An exhaust pipe 31 is fixed to the side of the electrostatic precipitator 25 near the filter membrane bag 26. An exhaust fan is bolted inside the exhaust pipe 31 to exhaust air from the electrostatic precipitator 25. The electrostatic precipitator mesh 30 is equipped with a discharge electrode and a dust collection electrode. When a high-voltage direct current is applied between them, the discharge electrode... A strong electric field is generated, causing the air to ionize. The gas molecules in the air are ionized into electrons and positive ions. These charged particles collide with dust particles, causing the dust particles to become charged. Under the action of the electric field, the charged dust particles move towards the dust collecting electrode with the opposite charge. Since the dust collecting electrode is grounded, the negatively charged dust particles are adsorbed onto the surface of the dust collecting electrode, forming a dust layer. The dust is then dislodged by vibration and falls into the dust collection trough below the electrostatic precipitator 30 for subsequent processing. In this way, the dust and gas are separated, achieving secondary dust removal. The purified gas is discharged from the electrostatic precipitator box 25.

[0040] A docking ring 32 is fixed to the left end of the filter membrane bag 26, and the docking ring 32 is adapted to the exhaust pipe 31. A sealing ring is fitted between the exhaust pipe 31 and the docking ring 32. A first semi-circular threaded post 33 is fixed to the outer walls of both the upper and lower sides of the exhaust pipe 31, and a second semi-circular threaded post 34 is fixed to the outer walls of both the upper and lower sides of the docking ring 32. A nut ring 35 is threaded onto both the first semi-circular threaded post 33 and the second semi-circular threaded post 34. By threading the nut ring 35 onto the first semi-circular threaded post 33 and the second semi-circular threaded post 34, the docking and locking between the exhaust pipe 31 and the docking ring 32 is achieved.

[0041] The auxiliary limiting mechanism includes a third cylinder 36 and a movable pressure plate 37. The third cylinder 36 is fixed to the top of the L-shaped second alignment plate 7 by bolts, and the movable pressure plate 37 is fixed to the output end of the third cylinder 36 by bolts. A fixed pressure plate 38 is fixed to the lower part of the outer wall of the second alignment plate 7 near the positioning table 3. The fixed pressure plate 38 and the movable pressure plate 37 are matched in position. The movable pressure plate 37 is driven by the third cylinder 36, thereby cooperating with the fixed pressure plate 38 to clamp and fix the edge of the circuit board material.

[0042] The translation adjustment mechanism includes an X-axis linear module 39 and a Y-axis linear module 40. The X-axis linear module 39 is fixed to the top of the inside of the protective cover 2 by bolts, and the Y-axis linear module 40 is fixed to the output end of the X-axis linear module 39 by bolts. The X-axis linear module 39 can drive the Y-axis linear module 40 to move horizontally to the left and right. The translation plate 8 is fixed to the output end of the Y-axis linear module 40 by bolts, and the Y-axis linear module 40 can drive the translation plate 8 to move horizontally to the front and back.

[0043] Both sides of the annular cylinder 13 are fixed with fixing blocks 41. The top of the fixing block 41 is fixed with a sleeve 42. The bottom of the drilling motor 10 is symmetrically fixed with sliding rods 43. The bottom of the sliding rod 43 slides through the sleeve 42 and is fixed with a stop block 44. In the natural state, the top of the stop block 44 abuts against the top of the inner side of the sleeve 42 to prevent the sliding rod 43 from coming out of the sleeve 42. Through the cooperation of the sleeve 42 and the sliding rod 43, the annular cylinder 13 is hoisted below the drilling motor 10, and at the same time, the bottom of the annular cylinder 13 can rise a suitable distance when it comes into contact with an obstacle.

[0044] The snap-fit ​​docking mechanism includes an upper docking post 45 and a lower docking post 46. The upper docking post 45 is fixed to the bottom of the mounting plate 11 by bolts, and the lower docking post 46 is fixed to the top of the drill bit 12 by bolts. A fitting block 47 is fixed to the bottom of the upper docking post 45, and a fitting groove is provided at the top of the lower docking post 46, which is compatible with the fitting block 47. L-shaped locking blocks 48 are fixed to the outer walls of both sides of the upper docking post 45 by bolts. Elastic pins 49 with a rebound reset function slide through the L-shaped locking blocks 48. The lower docking post 46 has L-shaped locking blocks 48 on both sides of the upper docking post 45. The outer side walls are provided with insertion holes 50, and the insertion holes 50 are adapted to the elastic pins 49. The upper docking post 45 and the lower docking post 46 are docked and fixed by inserting the elastic pins 49 into the insertion holes 50. The L-shaped block 48 has a slot 51 inside. A spring plate 52 is fixedly sleeved on one side of the elastic pin 49 located in the slot 51. A limit spring is fixed between the inner wall of the slot 51 away from the upper docking post 45 and the spring plate 52. The limit spring provides elastic push force to the spring plate 52, so that the elastic pin 49 has the function of automatic rebound.

[0045] When drilling is required on the circuit board material, the circuit board material to be drilled is first placed on the top of the positioning table 3. Then, the first cylinder 4 drives the front and rear first positioning plates 5 to move in opposite directions until the front and rear sides of the circuit board material are limited. At the same time, the second cylinder 6 drives the left and right second positioning plates 7 to move in opposite directions until the left and right sides of the circuit board material are limited. The auxiliary limiting mechanism is used to clamp and fix the left and right edge positions of the circuit board material, thus completing the fixing and limiting work before the circuit board material is processed.

[0046] After the circuit board material is fixed, the X-axis linear module 39 drives the Y-axis linear module 40 to move laterally to an appropriate position. The Y-axis linear module 40 then drives the translation plate 8 to move the hydraulic cylinder 9 longitudinally back and forth to an appropriate position until the drill bit 12 is moved directly above the position to be drilled on the circuit board material. Then, the drilling motor 10 is started to drive the mounting plate 11 to rotate the drill bit 12. At the same time, the hydraulic cylinder 9 is started to drive the drilling motor 10 to lower the drill bit 12 until it contacts the circuit board material and completes the drilling. After the drilling at the current position is completed, the hydraulic cylinder 9 is started to drive the drilling motor 10 to rise and reset. The above steps are repeated to continue to complete the drilling at the next position.

[0047] During the drilling process, the exhaust fan 15 is started to blow high-speed air into the annular cylinder 13. The high-speed airflow inside the annular cylinder 13 is then blown from the air blowing hole 16 to the drill bit 12, achieving heat dissipation and cooling while blowing off the dust remaining on the surface of the drill bit 12. At the same time, the dust removal fan 19 is started to drive the dust suction hood 17 to suck the flue gas and dust floating inside the protective cover 2 into the first dust suction pipe 18. Subsequently, the dust is filtered and purified in sequence through the cyclone dust collector 23, the electrostatic dust collector 25, and the filter membrane bag 26, achieving environmentally friendly treatment of the flue gas and dust.

[0048] When the drill bit 12 needs to be disassembled and replaced after a long period of use, the locking connection between the mounting plate 11 and the drill bit 12 is released by the snap-fit ​​connection mechanism, and the drill bit 12 can be directly removed to complete the quick disassembly. During installation, the new drill bit 12 is locked and connected to the bottom of the mounting plate 11 using the snap-fit ​​connection mechanism, thus completing the quick installation and realizing the quick disassembly and assembly of the drill bit 12.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circuit board processing system with efficient dust removal function, comprising a processing table (1) and a protective cover (2), characterized in that: The processing table (1) is fixed with a positioning table (3) at the top. The positioning table (3) is provided with an adsorption positioning mechanism. The positioning table (3) is provided with a first alignment plate (5) driven by a first cylinder (4) on both the front and rear sides. The positioning table (3) is provided with a second alignment plate (7) driven by a second cylinder (6) on both the left and right sides. The second alignment plate (7) is provided with an auxiliary limiting mechanism. Above the positioning platform (3) is a translation plate (8) that is driven to move by a translation adjustment mechanism. The bottom end of the translation plate (8) is connected to a drilling motor (10) via a hydraulic cylinder (9). The output end of the drilling motor (10) is fixed with a mounting plate (11). The bottom end of the mounting plate (11) is detachably mounted with a drill bit (12) via a snap-fit ​​docking mechanism. An annular cylinder (13) is suspended below the drilling motor (10). Both outer walls of the annular cylinder (13) are connected to exhaust fans (15) via air supply hoses (14). The inner walls of the four sides of the annular cylinder (13) are provided with air blowing holes (16) that communicate with the air supply hoses (14). The protective cover (2) is symmetrically provided with a dust suction hood (17) on the rear side inside. A first dust suction pipe (18) is fixed on the rear side of the dust suction hood (17) and extends to the outside of the protective cover (2). A dust removal fan (19) is installed on the first dust suction pipe (18). A composite dust removal component is connected to one end of the first dust suction pipe (18) located outside the protective cover (2).

2. The circuit board processing system with high-efficiency dust removal function according to claim 1, characterized in that: The adsorption positioning mechanism includes a cavity (20) opened inside the positioning platform (3) and an adsorption plate (21) fitted and fixed to the top of the positioning platform (3). The adsorption plate (21) has adsorption holes arranged in an array. A dustproof net is spaced between the adsorption plate (21) and the cavity (20). A vacuum pump (22) is fixed inside the processing table (1). The air inlet of the vacuum pump (22) extends into the cavity (20).

3. The circuit board processing system with high-efficiency dust removal function according to claim 1, characterized in that: The composite dust removal assembly includes a cyclone dust collector (23) connected to a first dust extraction pipe (18) and an electrostatic dust collector (25) connected to the cyclone dust collector (23) via a second dust extraction pipe (24). A filter membrane bag (26) is detachably installed on the side of the electrostatic dust collector (25) away from the protective cover (2).

4. The circuit board processing system with high-efficiency dust removal function according to claim 3, characterized in that: The bottom of the cyclone dust collector (23) is fixed with a conical funnel tube (27), and a dust collection box (28) is installed at the bottom of the conical funnel tube (27). The top of the cyclone dust collector (23) is fixed with an exhaust pipe (29) connected to the second dust extraction pipe (24). The end of the first dust extraction pipe (18) away from the protective cover (2) is tangentially inserted into the cyclone dust collector (23) and the dust-laden gas enters the cyclone dust collector (23) tangentially.

5. A circuit board processing system with high-efficiency dust removal function according to claim 3, characterized in that: The electrostatic dust collector (25) has a self-vibrating electrostatic dust collector net (30) fixed inside. The bottom of the electrostatic dust collector (25) has an opening below the electrostatic dust collector net (30). The bottom of the electrostatic dust collector (25) has a dust collection trough below the electrostatic dust collector net (30). An exhaust pipe (31) is fixed on the side of the electrostatic dust collector (25) near the filter membrane bag (26). An exhaust fan is fixed inside the exhaust pipe (31).

6. The circuit board processing system with high-efficiency dust removal function according to claim 5, characterized in that: The filter membrane bag (26) is fixed with a docking ring (32) that is compatible with the exhaust pipe (31) at one end near the electrostatic dust collector (25). A sealing ring is fitted between the exhaust pipe (31) and the docking ring (32). A first semi-circular threaded post (33) is fixed on the upper and lower outer walls of the exhaust pipe (31). A second semi-circular threaded post (34) is fixed on the upper and lower outer walls of the docking ring (32). A nut ring (35) is threaded onto the first semi-circular threaded post (33) and the second semi-circular threaded post (34).

7. The circuit board processing system with high-efficiency dust removal function according to claim 1, characterized in that: The auxiliary limiting mechanism includes a third cylinder (36) fixed on the second positioning plate (7) and a movable pressure plate (37) fixed on the output end of the third cylinder (36). A fixed pressure plate (38) adapted to the movable pressure plate (37) is fixed on the lower part of the outer wall of the second positioning plate (7) near the positioning table (3).

8. The circuit board processing system with high-efficiency dust removal function according to claim 1, characterized in that: The translation adjustment mechanism includes an X-axis linear module (39) fixed to the top of the inside of the protective cover (2) and a Y-axis linear module (40) fixed to the output end of the X-axis linear module (39). The translation plate (8) is fixed to the output end of the Y-axis linear module (40).

9. A circuit board processing system with high-efficiency dust removal function according to claim 1, characterized in that: The outer walls of both sides of the annular cylinder (13) are fixed with fixing blocks (41), and the top of the fixing block (41) is fixed with a sleeve (42). The bottom of the drilling motor (10) is symmetrically fixed with a sliding rod (43), and the bottom of the sliding rod (43) slides through into the sleeve (42) and is fixed with a stop block (44).

10. A circuit board processing system with high-efficiency dust removal function according to claim 1, characterized in that: The snap-fit ​​docking mechanism includes an upper docking post (45) fixed to the bottom of the mounting plate (11) and a lower docking post (46) fixed to the top of the drill bit (12). The bottom of the upper docking post (45) is fixed with a fitting block (47). The top of the lower docking post (46) is provided with a fitting groove that matches the fitting block (47). Both sides of the outer wall of the upper docking post (45) are fixed with L-shaped locking blocks (48). An elastic pin (49) slides through the L-shaped locking block (48). The outer wall of the lower docking post (46) is provided with a socket (50) that matches the elastic pin (49). The L-shaped locking block (48) is provided with a slot (51). A spring plate (52) is fixedly sleeved on one side of the elastic pin (49) located in the slot (51). A limit spring is fixed between the inner wall of the slot (51) away from the upper docking post (45) and the spring plate (52).

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