A self-cleaning air spindle for PCB drilling machine

Abstract

The present invention relates to the technical field of air spindles, and discloses a self-cleaning air spindle for a PCB drilling machine, comprising an air spindle body, a drill rod being mounted on one side of the air spindle body, a mounting frame being fixedly connected to the outside of the air spindle body, a self-cleaning mechanism being provided on the mounting frame, and the self-cleaning mechanism comprising two swinging plates. Through the design of the self-cleaning mechanism, when it is necessary to clean the drill rod of the air spindle device, the two swinging plates can be controlled to swing, prompting the annular plate to move to a position where the drill rod of the air spindle can be inserted, and then the annular plate can be moved by controlling the contraction of the first electric push rod, prompting the drill rod of the air spindle to be inserted between the bristles, and further controlling the rotation of the drill rod to achieve rapid friction between the bristles and the drill rod, thereby achieving the purpose of cleaning. Self-cleaning in this way is more convenient and efficient than manual disassembly and cleaning.

Description

Technical Field

[0001] The present invention relates to the technical field of air spindles, in particular to a self-cleaning air spindle for a PCB drilling machine. Background Art

[0002] The spindle of a PCB drilling machine is one of the key components in the PCB manufacturing process. It is mainly used to drive the drill bit to perform precision drilling on the PCB board. Its high-speed rotation ensures that the drill bit can quickly and stably complete the task of drilling fine holes, meeting the high-precision and high-efficiency requirements in PCB processing.

[0003] Patent announcement number CN211331342U discloses an electric spindle specially used in the PCB electric spindle industry, including a shell, wherein the upper and lower sides of the shell are fixedly connected with fixed plates, and the two fixed plates are respectively embedded with a first bearing and a second bearing. A main shaft is provided in the middle of the inner cavity of the shell, and the front and rear ends of the main shaft respectively pass through the opposite sides of the two fixed plates and are fixedly connected to the inner rings of the first bearing and the second bearing. A rotor is provided on the middle section of the main shaft, and the rotor is movably connected to the stator. By setting a cooling mechanism, the air in the shell can be effectively cooled when it reaches a flowing state through the annular net, so that the air flow temperature takes away a large amount of working temperature in the shell in a lowered state, thereby greatly improving the sustainable working time of the main shaft, thereby avoiding damage due to high temperature while ensuring its working efficiency.

[0004] PCBs are very compact components, requiring high precision during drilling. When drilling with a spindle, impurities such as oil and dirt on the spindle's drill rod can contaminate the PCB. Sharp impurities, in particular, can damage the PCB or cause drilling errors during drilling. The aforementioned device, similar to existing spindle structures, lacks self-cleaning capabilities for the spindle's drilling end. Traditional cleaning methods typically involve manual cleaning or removing the spindle and then cleaning it with additional cleaning equipment. This is cumbersome and can delay the spindle's normal operation. Therefore, a self-cleaning air spindle for a PCB drilling machine is proposed. Summary of the Invention

[0005] In order to solve the above-mentioned problems, the present invention provides a self-cleaning air spindle for a PCB drilling machine.

[0006] The present invention provides a self-cleaning air spindle for a PCB drilling machine, which adopts the following technical solutions:

[0007] A self-cleaning air spindle for a PCB drilling machine includes an air spindle body, a drill rod is mounted on one side of the air spindle body, a mounting frame is fixedly connected to the outside of the air spindle body, and a self-cleaning mechanism is provided on the mounting frame;

[0008] The self-cleaning mechanism includes two swing plates, which are respectively arranged on the front and rear sides of the mounting frame, and the swing plates are fixedly connected to a rotating rod, which extends into the interior of the mounting frame and is rotatably connected to the mounting frame. A first extension plate is slidably connected to the interior of one swing plate, and a second extension plate is slidably connected to the interior of the other swing plate, and the first extension plate and the second extension plate extend out of the two swing plates respectively. An annular plate is provided between the first extension plate and the second extension plate, and two connecting rods are fixedly connected to the outer side of the annular plate, and the two connecting rods are rotatably connected to the first extension plate and the second extension plate respectively. Brush bristles are fixedly connected to the inner sides of the two swing plates, and the first electric push rods are fixedly connected to the inner sides of the two swing plates, and one end of the two first electric push rods is fixedly connected to the inner sides of the first extension plate and the second extension plate respectively.

[0009] By adopting the above technical solution, when the drill rod of the air spindle equipment needs to be cleaned, the two swing plates can be controlled to swing, and the annular plate can be moved to a position where the drill rod of the air spindle can be inserted. The annular plate can be moved by controlling the contraction of the first electric push rod, so that the drill rod of the air spindle can be inserted between the bristles, and the rotation of the drill rod can be further controlled to achieve rapid friction between the bristles and the drill rod, thereby achieving the cleaning purpose. Self-cleaning in this way is more convenient and efficient than manual disassembly and cleaning.

[0010] Preferably, a first round rod is rotatably connected inside the mounting frame, a first motor is fixedly connected to the outside of the mounting frame, the first motor is fixedly connected to one end of the first round rod through an output shaft, two first pulleys are fixedly connected to the outside of the first round rod, and the outsides of the two rotating rods are fixedly connected to second pulleys, and the two first pulleys are respectively connected to the two second pulleys through belts.

[0011] By adopting the above technical solution, the first motor drives the first round rod to rotate after it starts working.

[0012] Preferably, one of the connecting rods is fixedly connected to a gear on the outside, the gear is arranged inside the first extension plate, the first extension plate is fixedly connected to a guide plate on the inside, the guide plate is slidably connected to a movable plate on the outside, the first extension plate is fixedly connected to a second electric push rod on the inside, and one end of the second electric push rod is fixedly connected to the movable plate.

[0013] By adopting the above technical solution, the second electric push rod pushes and pulls the movable plate after operation.

[0014] Preferably, a rack is fixedly connected to the movable plate, the rack is arranged at the bottom of the gear, and the rack is meshed with the gear.

[0015] By adopting the above technical solution, the rack moves to drive the gear to rotate.

[0016] Preferably, the self-cleaning mechanism includes a debris removal component, and the debris removal component includes a bracket plate, the bracket plate is fixedly connected to the outside of the annular plate, a moving block is slidably connected to one side wall of the bracket plate, a circular plate is rotatably connected to the moving block, an auxiliary plate is provided on one side of the circular plate, a scraper is integrally formed on the auxiliary plate, the scraper passes through the circular plate, a frame is provided at the bottom of the air spindle body, a support plate is fixedly connected to the outside of the frame, one end of the support plate is fixedly connected to the outside of the air spindle body, a second round rod is rotatably connected to the inside of the frame, the second round rod extends out of the frame, a square rod is integrally formed at one end of the second round rod, a rectangular groove is provided on one side of the auxiliary plate, and the rectangular groove matches the square rod.

[0017] By adopting the above technical solution, when the square rod is inserted into the rectangular groove, the second round rod can drive the auxiliary plate to rotate after rotating.

[0018] Preferably, a control plate is slidably connected to the top wall of the bracket plate, one side of the control plate is movably connected to a push-pull rod through a movable hinge, one end of the push-pull rod is movably connected to the top of the moving block through a movable hinge, and a third electric push rod is fixedly connected to the inner side of the bracket plate, and one end of the third electric push rod is fixedly connected to the control plate.

[0019] By adopting the above technical solution, the third electric push rod can push and pull the control panel after it is put into operation.

[0020] Preferably, a spring is fixedly connected to the circular plate, and one end of the spring is fixedly connected to the auxiliary plate.

[0021] By adopting the above technical solution, the spring provides elastic force to the auxiliary plate.

[0022] Preferably, a protective net is fixedly connected to the top and bottom walls of the frame, a fan blade is fixedly connected to the outside of the second round rod, a fixed plate is fixedly connected to the inside of the frame, a second motor is fixedly connected to the inside of the fixed plate, the second motor is fixedly connected to an auxiliary rod through an output shaft, one end of the auxiliary rod is fixedly connected to a first bevel gear, the outside of the second round rod is fixedly connected to a second bevel gear, the second bevel gear is arranged at the bottom of the first bevel gear, and the second bevel gear is meshed with the first bevel gear.

[0023] By adopting the above technical solution, after the second motor starts working, the first bevel gear rotates and drives the second bevel gear to rotate.

[0024] Preferably, a cooling groove is opened inside the outer wall of the air main shaft body, and a circulation component is provided on the outside of the air main shaft body, and the circulation component includes a cooling frame, and the cooling frame is fixedly connected to the outside of the air main shaft body, and two plug sockets are fixedly connected to the outside of the air main shaft body, and the two plug sockets are both connected to the cooling groove, and a frame plate is fixedly connected to one side of the cooling frame, and a water pump is fixedly connected to the inside of the frame plate, and the input end of the water pump is fixedly connected to a first pipe, and the first pipe is fixedly connected to one side wall of the frame body, and the output end of the water pump is fixedly connected to a second pipe, and a limit plate is fixedly connected to the outside of the air main shaft body, and the second pipe passes through the limit plate, and a third pipe is fixedly connected to the other side wall of the frame body, and one end of the second pipe and the third pipe are fixedly connected to plug connectors, and the two plug connectors extend into the inside of the two plug sockets respectively, and the plug connectors fit with the inner sides of the plug sockets.

[0025] By adopting the above technical solution, after the plug connector is inserted into the socket, the friction between the two can promote a tight connection between the two.

[0026] Preferably, a heat conducting plate is fixedly connected to the interior of the cooling frame, the heat conducting plates are arranged at equal intervals on the cooling frame, the heat conducting plates extend out of the cooling frame, and heat dissipation ports are provided on the heat conducting plates.

[0027] By adopting the above technical solution, the heat conducting plate can absorb the heat of the coolant in the cooling frame.

[0028] In summary, the present invention has the following beneficial technical effects:

[0029] A self-cleaning air spindle for a PCB drilling machine has a self-cleaning mechanism. When the drill rod of the air spindle device needs to be cleaned, two swing plates can be controlled to swing, causing the annular plate to move to a position where the drill rod of the air spindle can be inserted. The annular plate is then moved by controlling the contraction of a first electric push rod, so that the drill rod of the air spindle can be inserted between the bristles. The drill rod is further controlled to rotate, so that rapid friction between the bristles and the drill rod can be achieved, thereby achieving the cleaning purpose. Self-cleaning in this way is more convenient and efficient than manual disassembly and cleaning.

[0030] A self-cleaning air spindle for a PCB drilling machine is designed with an impurity removal component. After controlling the annular plate to move to the position directly below the air spindle body, the square rod is controlled to be inserted into the rectangular groove, and the scraper is further prompted to be inserted into the bristles. This can achieve the purpose of controlling the rotation of the scraper to knock off impurities on the bristles. The rotation of the fan blades can also accelerate the speed at which impurities fall, thereby improving the cleaning quality of the bristles and facilitating the rapid implementation of the next cleaning work of the drill rod by the bristles.

[0031] A self-cleaning air spindle for a PCB drilling machine generates a large amount of heat when the air spindle body is in operation through the design of an impurity removal component. After the water pump is in operation, it extracts coolant from the cooling frame and enters the cooling tank through a second pipe. The coolant flowing through the cooling tank is then re-inhaled into the cooling frame through a third pipe for circulating cooling. At this time, the fan blades begin to output airflow toward the heat conduction plate, cooling the heat conduction plate with air cooling, thereby effectively increasing the cooling speed and achieving higher cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of the structure of the present invention;

[0033] Figure 2 It is a cross-sectional structural diagram of the installation frame in the present invention;

[0034] Figure 3 Schematic diagram of the structure of the bracket plate in the present invention;

[0035] Figure 4 is a cross-sectional structural diagram of the first extension plate in the present invention;

[0036] Figure 5 This is a cross-sectional view of the structure of the air spindle body of the present invention;

[0037] Figure 6 for Figure 5 A magnified view of point A in the figure;

[0038] Figure 7 for Figure 5 Enlarged view of point B in FIG.

[0039] Figure 8 This is a schematic diagram of the frame being adjusted to the bottom in the present invention;

[0040] Figure 9 for Figure 8 Enlarged view of point C in the figure.

[0041] Explanation of the accompanying symbols: 1. air spindle body; 2. drill rod; 3. mounting frame; 4. self-cleaning mechanism; 41. swing plate; 42. rotating rod; 43. first extension plate; 44. second extension plate; 45. annular plate; 46. connecting rod; 47. brush; 48. first electric push rod; 49. first round rod; 491. first motor; 492. first pulley; 493. second pulley; 494. gear; 495. guide plate; 496. movable plate; 497. second electric push rod; 498. rack; 5. debris removal component; 51. bracket plate; 52 , moving block; 53, round plate; 54, auxiliary plate; 55, scraper; 56, frame; 57, support plate; 58, second round rod; 59, square rod; 591, control board; 592, push-pull rod; 593, third electric push rod; 594, spring; 595, protective net; 596, second motor; 597, first bevel gear; 598, second bevel gear; 6, cooling trough; 7, circulation component; 71, cooling frame; 72, socket; 73, frame plate; 74, water pump; 75, second pipe; 76, third pipe; 77, plug connector; 78, heat conduction plate. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1 -Attached Figure 9 The present invention is described in further detail.

[0043] The present invention discloses a self-cleaning air spindle for a PCB drilling machine. Figures 1-9 , including an air spindle body 1, a drill rod 2 is installed on one side of the air spindle body 1, a mounting frame 3 is fixedly connected to the outside of the air spindle body 1, and a self-cleaning mechanism 4 is provided on the mounting frame 3;

[0044] The self-cleaning mechanism 4 includes two swinging plates 41, which are respectively arranged on the front and rear sides of the mounting frame 3. A rotating rod 42 is fixedly connected to the swinging plate 41, and the rotating rod 42 extends into the interior of the mounting frame 3 and is rotatably connected to the mounting frame 3. A first extension plate 43 is slidably connected to the interior of one of the swinging plates 41, and a second extension plate 44 is slidably connected to the interior of the other swinging plate 41. The first extension plate 43 and the second extension plate 44 extend out of the two swinging plates 41 respectively. An annular plate 45 is provided between the first extension plate 43 and the second extension plate 44. Two connecting rods 46 are fixedly connected to the outer side of the annular plate 45. The two connecting rods 46 are rotatably connected to the first extension plate 43 and the second extension plate 44 respectively. Bristles 47 are fixedly connected to the inner side of the annular plate 45;

[0045] A first electric push rod 48 is fixedly connected to the inner side of the two swing plates 41, and one end of the two first electric push rods 48 is fixedly connected to the inner side of the first extension plate 43 and the second extension plate 44 respectively. When the drill rod 2 of the air spindle equipment needs to be cleaned, the two swing plates 41 can be controlled to swing, and the annular plate 45 is prompted to move to the position where the drill rod 2 of the air spindle can be inserted. Then, the annular plate 45 is moved by controlling the contraction of the first electric push rod 48, so that the drill rod 2 of the air spindle can be inserted between the bristles 47, and the rotation of the drill rod 2 is further controlled to achieve rapid friction between the bristles 47 and the drill rod 2, thereby achieving the cleaning purpose. Self-cleaning in this way is more convenient and efficient than manual disassembly and cleaning.

[0046] The first round rod 49 is rotatably connected to the inside of the mounting frame 3, and the first motor 491 is fixedly connected to the outside of the mounting frame 3. The first motor 491 is fixedly connected to one end of the first round rod 49 through an output shaft. The outside of the first round rod 49 is fixedly connected to two first pulleys 492. The outsides of the two rotating rods 42 are fixedly connected to second pulleys 493. The two first pulleys 492 are respectively connected to the two second pulleys 493 through belts. After the first motor 491 works, it drives the first round rod 49 to rotate. One of the connecting rods 46 is fixedly connected to the outside of the gear 494. The gear 494 It is arranged inside the first extension plate 43, and a guide plate 495 is fixedly connected inside the first extension plate 43. A movable plate 496 is slidably connected outside the guide plate 495. A second electric push rod 497 is fixedly connected inside the first extension plate 43. One end of the second electric push rod 497 is fixedly connected to the movable plate 496. After the second electric push rod 497 works, it pushes and pulls the movable plate 496. A rack 498 is fixedly connected to the movable plate 496. The rack 498 is arranged at the bottom of the gear 494. The rack 498 is engaged with the gear 494. After the rack 498 moves, it drives the gear 494 to rotate.

[0047] The self-cleaning mechanism 4 includes a debris removal component 5, which includes a bracket plate 51. The bracket plate 51 is fixedly connected to the outside of the annular plate 45. A moving block 52 is slidably connected to one side wall of the bracket plate 51. A circular plate 53 is rotatably connected to the moving block 52. An auxiliary plate 54 is provided on one side of the circular plate 53. A scraper 55 is integrally formed on the auxiliary plate 54. The scraper 55 passes through the circular plate 53. A frame 56 is provided at the bottom of the air spindle body 1. A support plate 57 is fixedly connected to the outside of the frame 56. One end of the support plate 57 is fixedly connected to the outside of the air spindle body 1. A second round rod 58 is rotatably connected to the inside of the frame 56. The second round rod 58 extends out of the outside of the frame 56. A square rod 59 is integrally formed at one end of the second round rod 58. A rectangular groove is provided on one side of the auxiliary plate 54. The rectangular groove matches the square rod 59. When the square rod 59 is inserted into the rectangular groove, the second round rod 58 can drive the auxiliary plate 54 to rotate after rotation;

[0048] A control plate 591 is slidably connected to the top wall of the bracket plate 51. A push-pull rod 592 is movably connected to one side of the control plate 591 via a movable hinge. One end of the push-pull rod 592 is movably connected to the top of the moving block 52 via a movable hinge. A third electric push rod 593 is fixedly connected to the inner side of the bracket plate 51. One end of the third electric push rod 593 is fixedly connected to the control plate 591. When the third electric push rod 593 is in operation, it can push and pull the control plate 591. A spring 594 is fixedly connected to the circular plate 53. One end of the spring 594 is fixedly connected to the auxiliary plate 54. The spring 594 provides an elastic force on the auxiliary plate 54.

[0049] A protective net 595 is fixedly connected to the top and bottom walls of the frame 56, a fan blade is fixedly connected to the outside of the second round rod 58, a fixed plate is fixedly connected to the inside of the frame 56, a second motor 596 is fixedly connected to the inside of the fixed plate, the second motor 596 is fixedly connected to the auxiliary rod through the output shaft, one end of the auxiliary rod is fixedly connected to the first bevel gear 597, a second bevel gear 598 is fixedly connected to the outside of the second round rod 58, the second bevel gear 598 is arranged at the bottom of the first bevel gear 597, and the second bevel gear 598 is meshed with the first bevel gear 597. After the second motor 596 works, the first bevel gear 597 rotates and drives the second bevel gear 598 to rotate.

[0050] A cooling groove 6 is provided inside the outer wall of the air spindle body 1. A circulation component 7 is provided on the outside of the air spindle body 1. The circulation component 7 includes a cooling frame 71. The cooling frame 71 is fixedly connected to the outside of the air spindle body 1. Two sockets 72 are fixedly connected to the outside of the air spindle body 1. Both sockets 72 are connected to the cooling groove 6. A frame plate 73 is fixedly connected to one side of the cooling frame 71. A water pump 74 is fixedly connected to the inside of the frame plate 73. The input end of the water pump 74 is fixedly connected to a first pipe, which is fixedly connected to a side wall of the frame body 56. The output end of the water pump 74 is fixedly connected to a second pipe 75. A limit plate is fixedly connected to the outside of the air spindle body 1.

[0051] The second pipe 75 passes through the limit plate, and the third pipe 76 is fixedly connected to the other side wall of the frame 56. One end of the second pipe 75 and the third pipe 76 is fixedly connected to a plug connector 77. The two plug connectors 77 extend into the interior of the two sockets 72 respectively, and the plug connectors 77 fit against the inner side of the socket 72. After the plug connector 77 is inserted into the socket 72, the friction between the two can enable the two to be tightly connected. A heat conducting plate 78 is fixedly connected to the inside of the cooling frame 71. The heat conducting plates 78 are arranged at equal intervals on the cooling frame 71 and extend out of the cooling frame 71. A heat dissipation port is provided on the heat conducting plate 78, which can absorb the heat of the coolant in the cooling frame 71.

[0052] In actual operation, when this device is used, first, the device is connected to the power supply. When there are impurities on the drill rod 2, in order to clean the drill rod 2, the first motor 491 works and drives the first round rod 49 to rotate, the first round rod 49 drives the first pulley 492 to rotate, the first pulley 492 drives the second pulley 493 to rotate through the belt, the second pulley 493 drives the rotating rod 42 to rotate, the rotating rod 42 drives the swing plate 41 to swing with the rotating rod 42 as the axis, at this time, the two swing plates 41 respectively drive the first extension plate 43 and the second extension plate 44 to swing, the first extension plate 43 and the second extension plate 44 drive the connected connecting rod 46 to move, and the connecting rod 46 drives the annular plate 45 to move until the annular plate 45 moves to one side of the drill rod 2 and the drill rod 2 is aligned with the center position of the brush 47, and then stops. The central gap of the brush 47 is smaller than the diameter of the drill rod 2, which can ensure that the drill rod 2 is fully in contact with the brush 47 after insertion. Then the two first electric push rods 48 contract and respectively drive the first extension plate 43 and the second extension plate 44 to move synchronously toward the inside of the two swing plates 41. From the above connection relationship, it can be seen that the annular plate 45 moves toward the air spindle body 1, prompting the drill rod 2 to be inserted into the inside of the brush 47. After controlling the rotation of the drill rod 2, the brush 47 can fully contact the outside of the drill rod 2 and brush away impurities on the drill rod 2, thereby achieving the purpose of self-cleaning;

[0053] After the drill rod 2 is cleaned, the above steps are repeated to control the annular plate 45 to move to the bottom of the air spindle body. The second electric push rod 497 works and drives the movable plate 496 to move. The movable plate 496 drives the rack 498 to move. The rack 498 drives the gear 494 to rotate. The gear 494 drives the connected connecting rod 46 to rotate. This connecting rod 46 drives the annular plate 45 to rotate, prompting the bracket plate 51 to face the air spindle body 1. The third electric push rod 593 works and pushes the control plate 591. The control plate 591 drives the push-pull rod 592 to swing. After the push-pull rod 592 swings, it drives the moving block 52 to move. In this way, the auxiliary plate 54 is controlled to stay directly below the square rod 59. The operation of retracting the first electric push rod 48 is repeated, and the auxiliary plate 54 is controlled to stay directly below the square rod 59. Through the above operating principle, it can be known that at this time the annular plate 45 drives the bracket plate 51 to move upward. When the square rod 59 is inserted into the rectangular groove, as the bracket plate 51 continues to move upward, the square rod 59 pushes the auxiliary plate 54. After the auxiliary plate 54 drives the scraper 55 to insert into the bristles 47, the second motor 596 works and drives the auxiliary rod to rotate. The auxiliary rod drives the first bevel gear 597 to rotate, the first bevel gear 597 drives the second bevel gear 598 to rotate, the second bevel gear 598 drives the second round rod 58 to rotate, the second round rod 58 drives the square rod 59 to rotate, the square rod 59 drives the auxiliary plate 54 to rotate, and the auxiliary plate 54 drives the scraper 55 to rotate. The scraper 55 stirs the bristles 47 to scrape off the impurities remaining on the bristles 47 themselves;

[0054] While the above operation is being carried out, the second round rod 58 also drives the fan blades to rotate. The fan blades rotate and generate wind force to blow towards the bristles 47. This, in combination with the scraping of the scraper 55, can quickly blow off the impurities, thereby improving the cleaning quality of the bristles 47 and facilitating the next cleaning work of the bristles 47 on the drill rod 2.

[0055] When the air spindle body 1 is working, a large amount of heat is generated. After the coolant is injected into the cooling tank 6 through the upper socket 72, the coolant will enter the cooling frame 71. After the two plug connectors 77 are respectively inserted into the two sockets 72 for connection, the water pump 74 will extract the coolant in the cooling frame 71 after working, and enter the cooling tank 6 after passing through the second pipe 75. The coolant flowing in the cooling tank 6 will be re-absorbed into the cooling frame 71 through the third pipe 76, so as to perform circulation cooling to achieve the purpose of cooling the air spindle body 1 when working. The heat conducting plate 78 can absorb the heat of the coolant in the cooling frame 71. At this time, the second motor 596 rotates in the opposite direction to the above rotation of the auxiliary plate 54. That is, it can be seen from the above operation that the fan blades are backblown at this time, that is, they start to output airflow in the direction of the heat conducting plate 78, and cool the heat conducting plate 78 by air cooling, which can effectively increase the cooling speed and achieve higher cooling efficiency.

[0056] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A self-cleaning air spindle for a PCB drilling machine, comprising an air spindle body (1), characterized in that: A drill rod (2) is installed on one side of the air spindle body (1); a mounting frame (3) is fixedly connected to the outside of the air spindle body (1); and a self-cleaning mechanism (4) is provided on the mounting frame (3); The self-cleaning mechanism (4) comprises two swinging plates (41), the two swinging plates (41) being respectively arranged on the front and rear sides of the mounting frame (3), the swinging plates (41) being fixedly connected to a rotating rod (42), the rotating rod (42) extending into the interior of the mounting frame (3) and being rotatably connected to the mounting frame (3), a first extension plate (43) being slidably connected to the interior of one of the swinging plates (41), and a second extension plate (44) being slidably connected to the interior of the other swinging plate (41), the first extension plate (43) and the second extension plate (44) respectively extending outwards of the two swinging plates (41). An annular plate (45) is provided between the first extension plate (43) and the second extension plate (44); two connecting rods (46) are fixedly connected to the outside of the annular plate (45); the two connecting rods (46) are rotatably connected to the first extension plate (43) and the second extension plate (44), the inner side of the annular plate (45) is fixedly connected to bristles (47); the inner sides of the two swing plates (41) are fixedly connected to first electric push rods (48); one end of the two first electric push rods (48) is fixedly connected to the inner sides of the first extension plate (43) and the second extension plate (44); One of the connecting rods (46) is fixedly connected to a gear (494) on the outside, the gear (494) is arranged inside the first extension plate (43), the first extension plate (43) is fixedly connected to a guide plate (495) on the inside, the guide plate (495) is slidably connected to a movable plate (496) on the outside, the first extension plate (43) is fixedly connected to a second electric push rod (497) on the inside, one end of the second electric push rod (497) is fixedly connected to the movable plate (496), the movable plate (496) is fixedly connected to a rack (498), the rack (498) is arranged at the bottom of the gear (494), and the rack (498) is meshed with the gear (494); The self-cleaning mechanism (4) includes a debris removal component (5), the debris removal component (5) includes a bracket plate (51), the bracket plate (51) is fixedly connected to the outside of the annular plate (45), a moving block (52) is slidably connected to a side wall of the bracket plate (51), a circular plate (53) is rotatably connected to the moving block (52), an auxiliary plate (54) is provided on one side of the circular plate (53), a scraper (55) is integrally formed on the auxiliary plate (54), and the scraper (55) passes through the circular plate (53). A frame (56) is provided at the bottom of the air spindle body (1), a support plate (57) is fixedly connected to the outside of the frame (56), one end of the support plate (57) is fixedly connected to the outside of the air spindle body (1), a second round rod (58) is rotatably connected to the inside of the frame (56), the second round rod (58) extends outside the frame (56), and a square rod (59) is integrally formed at one end of the second round rod (58), and a rectangular groove is opened on one side of the auxiliary plate (54), and the rectangular groove matches the square rod (59); The top and bottom walls of the frame (56) are fixedly connected to a protective net (595); the outside of the second round rod (58) is fixedly connected to a fan blade; the inside of the frame (56) is fixedly connected to a fixed plate; the inside of the fixed plate is fixedly connected to a second motor (596); the second motor (596) is fixedly connected to an auxiliary rod via an output shaft; one end of the auxiliary rod is fixedly connected to a first bevel gear (597); the outside of the second round rod (58) is fixedly connected to a second bevel gear (598); the second bevel gear (598) is arranged at the bottom of the first bevel gear (597), and the second bevel gear (598) is meshed with the first bevel gear (597).

2. The self-cleaning air spindle for a PCB drilling machine according to claim 1, characterized in that: The installation frame (3) is internally rotatably connected to a first round rod (49), and the outside of the installation frame (3) is fixedly connected to a first motor (491), the first motor (491) is fixedly connected to one end of the first round rod (49) via an output shaft, the outside of the first round rod (49) is fixedly connected to two first pulleys (492), the outsides of the two rotating rods (42) are both fixedly connected to second pulleys (493), and the two first pulleys (492) are respectively connected to the two second pulleys (493) via belts.

3. The self-cleaning air spindle for a PCB drilling machine according to claim 1, characterized in that: A control plate (591) is slidably connected to the top wall of the bracket plate (51), and a push-pull rod (592) is movably connected to one side of the control plate (591) via a movable hinge seat. One end of the push-pull rod (592) is movably connected to the top of the moving block (52) via a movable hinge seat. A third electric push rod (593) is fixedly connected to the inner side of the bracket plate (51), and one end of the third electric push rod (593) is fixedly connected to the control plate (591).

4. The self-cleaning air spindle for a PCB drilling machine according to claim 1, characterized in that: A spring (594) is fixedly connected to the circular plate (53), and one end of the spring (594) is fixedly connected to the auxiliary plate (54).

5. The self-cleaning air spindle for a PCB drilling machine according to claim 1, characterized in that: A cooling groove (6) is provided inside the outer wall of the air main shaft body (1), and a circulation component (7) is provided outside the air main shaft body (1). The circulation component (7) includes a cooling frame (71), and the cooling frame (71) is fixedly connected to the outside of the air main shaft body (1). Two sockets (72) are fixedly connected to the outside of the air main shaft body (1), and the two sockets (72) are both connected to the cooling groove (6). A frame plate (73) is fixedly connected to one side of the cooling frame (71), and a water pump (74) is fixedly connected to the inner side of the frame plate (73). The input end of the water pump (74) is fixedly connected to the cooling groove (6). A first pipe is fixedly connected, and the first pipe is fixedly connected to a side wall of the frame (56). The output end of the water pump (74) is fixedly connected to a second pipe (75). The outer side of the air main shaft body (1) is fixedly connected to a limit plate. The second pipe (75) passes through the limit plate. A third pipe (76) is fixedly connected to the other side wall of the frame (56). One end of each of the second pipe (75) and the third pipe (76) is fixedly connected to a plug connector (77). The two plug connectors (77) extend into the interior of the two sockets (72), and the plug connectors (77) fit in place with the inner side of the socket (72).

6. The self-cleaning air spindle for a PCB drilling machine according to claim 5, characterized in that: A heat conducting plate (78) is fixedly connected to the interior of the cooling frame (71), and the heat conducting plates (78) are arranged at equal intervals on the cooling frame (71). The heat conducting plates (78) extend outside the cooling frame (71), and a heat dissipation port is provided on the heat conducting plates (78).

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