Micro through hole machining device for aluminum circuit board

Abstract

The invention relates to the technical field of circuit board micro through hole machining, and discloses an aluminum circuit board micro through hole machining device which comprises a rack, a lifting mechanism is fixedly connected to the top of the rack, and a drill bit mechanism is fixedly connected to the lower side of the lifting mechanism. A tool changing mechanism is fixedly connected to the side, close to the drill bit mechanism, of the rack and located on the lower side of the lifting mechanism. The lower side of the drill bit mechanism is fixedly connected with drill bits, the number of the drill bits is two, a switching mechanism is arranged between the two drill bits, and a reinforcing mechanism is fixedly installed on one side of the switching mechanism. The drill has the functions of independent operation and free conversion of the double drill bits, sectional drilling is achieved, the size of the drilling tool is changed through the soul of the double bits, then the drilling efficiency is improved, meanwhile, the purpose of automatically and rapidly replacing the tool handle of the double drill bits is achieved, the existing mode of replacing the drill bits in a reciprocating mode through a single drill bit is changed, and the drilling efficiency is improved. The drilling efficiency is further improved, and meanwhile the drilling precision is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of micro-through-hole processing of circuit boards, and in particular to a micro-through-hole processing device for aluminum circuit boards. Background Art

[0002] The micro-hole processing of aluminum circuit boards mainly involves through holes, and the manufacturing process is relatively special, in which the requirements for drilling are also relatively high. Mechanical drilling is more commonly used, using a high-speed rotating micro drill to accurately drill holes of the required size according to the design drawings.

[0003] However, during the mechanical drilling of aluminum circuit boards, due to the metal material of aluminum circuit boards, compared with ordinary circuit boards, hole defects and in-hole defects are more likely to occur. The hole defects mainly consist of two forms: delamination and hole burrs. When the drill bit drills into the aluminum circuit board, the cutting force suddenly changes. When the drill bit drills out of the bottom of the aluminum circuit board, the load exceeds the interlayer adhesion of the underlying material, resulting in delamination. The hole burrs are mainly caused by the drill bit squeezing the uncut material at the hole entrance and deforming it. At the hole exit, the material is pushed out and undergoes a large deformation. The main reason for the in-hole defects is that the aluminum circuit board material is relatively hard, the drill bit is easy to wear, and the feed rate of the drill bit is not well controlled, causing the brittle material of the hole wall to form cracks under high-speed impact, and the cracks spread and fall off to form gaps. The existing method is to continuously change the drill bit size and gradually expand the hole to improve it. However, the market mainly uses a single spindle to reciprocate to replace the drill bit, which is inefficient. Therefore, it is necessary to improve the existing technology. Summary of the invention

[0004] The object of the present invention is to provide a micro through-hole processing device for an aluminum circuit board to solve the problems raised in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a micro through-hole processing device for an aluminum circuit board, comprising a frame, a lifting mechanism is fixedly connected to the top of the frame, a drill mechanism is fixedly connected to the lower side of the lifting mechanism, and a tool changing mechanism is fixedly connected to the side of the frame close to the drill mechanism and on the lower side of the lifting mechanism; A drill bit is fixedly connected to the lower side of the drill bit mechanism, and two groups of drill bits are provided. A conversion mechanism is provided between the two groups of drill bits, and a reinforcement mechanism is fixedly installed on one side of the conversion mechanism; The drill bit includes a fixed cylinder, a central shaft, and a fixed pull ring. The lower side of the drill bit mechanism is provided with a fixed cylinder, the inner side of the fixed cylinder is rotatably connected with the central shaft, the lower side of the central shaft is fixedly connected with a fixed pull ring, and the lower part of the central shaft is provided with evenly distributed inclined holes; The reinforcement mechanism includes a reinforcement shell, a partition, a piston block, a monitoring component, and an air nozzle group. The reinforcement shell is fixedly connected to one side of the conversion mechanism, a partition is fixedly connected to the inner middle part of the reinforcement shell, a piston block is slidably connected to the inner side of the reinforcement shell, and two groups of piston blocks are symmetrically arranged about the partition. The outer side of the reinforcement shell is connected to the air nozzle group, and the air nozzle group is connected to the corresponding fixed cylinder through the control air nozzle two, and the upper side of the piston block and the lower part of the conversion mechanism are fixedly connected with a monitoring component.

[0006] Furthermore, the lifting mechanism includes a lifting motor, a threaded rod, a moving block, a sliding block 1, and a guide rail 1. The top of the frame is fixedly connected to the lifting motor, the lower output end of the lifting motor is fixedly connected to the threaded rod, the outer side of the threaded rod is threadedly connected to the moving block, the side of the moving block close to the frame is fixedly connected to the sliding block 1, the side of the frame close to the moving block is fixedly connected to the guide rail 1, and the sliding block 1 slides on the guide rail 1.

[0007] Furthermore, the drill mechanism includes a motor 1, a rotating shaft sleeve, a rotating shaft, and a telescopic assembly. The lower side of the moving block is fixedly connected to an outer shell, the top of the outer shell is fixedly connected to the motor 1, the lower output end of the motor 1 is fixedly connected to the rotating shaft sleeve, the inner side of the rotating shaft sleeve is slidably connected to the rotating shaft, the lower end of the rotating shaft is connected to the drill bit, and the outer side of the drill bit is fixedly installed with a telescopic assembly; The telescopic assembly includes a telescopic cylinder, a piston rod, a moving block, a second sliding block, and a second guide rail. The lower part of the conversion mechanism is fixedly connected to the telescopic cylinder through a rectangular block. The inner side of the telescopic cylinder is slidably connected to the piston rod. The lower side of the piston rod is fixedly connected to the moving block. The moving block is fixedly connected to the drill bit. The inner side of the conversion mechanism is fixedly connected to the second guide rail. The outer side of the second guide rail is slidably connected to the second sliding block. The second sliding block is fixedly connected to the drill bit.

[0008] Start the lifting motor to rotate. When the lifting motor rotates, it drives the moving block to move up and down, and then drives the drill mechanism to move up and down. Since two sets of drills are equipped, the telescopic cylinder is started by controlling the piston rod to drive the moving block to move up and down, and then drives the drill to move up and down, so that the two sets of drills can be controlled to extend and retract freely. Further, the tool changing mechanism comprises a fixed frame, a tool changing handle, a driving assembly, and a tool changing member, the fixed frame is fixedly connected to a side of the frame close to the drill mechanism, the driving assembly is fixedly installed on a side of the fixed frame close to the drill mechanism, the tool changing member is fixedly connected to a side of the fixed frame away from the driving assembly, and the tool changing handle is provided on the lower side of the driving assembly; The driving assembly includes a fixed sleeve, a second motor, a clutch, a bevel gear, a bevel toothed disc, a rotating wheel, a rotating rod, a driving wheel, a connecting rod, and a cylindrical ring. The fixed frame is fixedly connected to a fixed housing on the side away from the tool changer. The upper side of the fixed housing is fixedly connected to the second motor. A clutch is arranged on the side of the second motor close to the tool changer. The lower output end of the driving wheel is fixedly connected to a bevel gear. The lower side of the bevel gear is meshed with a bevel toothed disc. The side of the bevel toothed disc away from the tool changer is fixedly connected to a rotating wheel. A cam groove is arranged on the side of the bevel toothed disc close to the tool changer. The conical gear disk is rotatably connected with a circular shaft at the center position of one side close to the tool changing part, and a connecting rod is fixedly connected to the lower side of the circular shaft, and a cylindrical block is provided at one end of the connecting rod, and the cylindrical block is arranged in the cam groove, and an intermittent slide groove is provided on the outer side of the rotating wheel, and a cylindrical ring is provided in the intermittent slide groove, and a rotating rod is fixedly connected to the inner side of the cylindrical ring, and a fixed sleeve is fixedly connected to the outer side of the rotating rod and on the lower side of the cylindrical ring, and the inner side of the fixed sleeve contacts with the other end of the connecting rod, and a driving wheel is fixedly connected to the output end of the clutch, and the driving wheel contacts the rotating disk.

[0009] The transmission gear of the present invention is connected with the transmission gear of the present invention on the one hand, and the transmission gear of the present invention is connected with the transmission gear of the present invention on the other hand, and the transmission gear of the present invention is connected with the transmission gear of the present invention on the other hand. When replacing the tool handle, start Motor 2, which drives the bevel gear to rotate while rotating, and the meshing of the bevel gear drives the bevel toothed disc to rotate, and the bevel toothed disc drives the rotating wheel fixedly connected thereto to rotate synchronously. Since a cam groove is provided on the bevel toothed disc, the connecting rod is driven to swing back and forth under the action of the cam groove, and at the same time, under the action of the intermittent slide groove on the rotating wheel, the cylindrical ring is driven to rotate 180 degrees intermittently, and then under the action of the connecting rod, the rotating rod is made to rotate 180 degrees intermittently while moving up and down. At the same time, the external control system controls the clutch to engage and disengage intermittently, thereby driving the driving wheel to rotate intermittently, and the driving wheel drives the rotating disc to rotate intermittently, thereby driving the connecting sleeve to move intermittently to the tool changing station in sequence; The tool changing fixed plate is provided with an inspection station, a tool changing station and two reserved stations. The inspection station is provided with an inspection mechanism, which includes a camera and an inspection cylinder. The fixing frame is fixedly connected to the camera via an L-shaped rod, and the inspection cylinder is fixedly installed on the inner side of the camera.

[0010] While the tool handle on the connecting plate rotates intermittently, the tool handle passes through the camera in turn, and the detection tube takes pictures of the drill bit on the tool handle, and then transmits the image information to the CNC system, and then automatically detects the wear of the drill bit. If the drill bit is severely worn, the drill bit is replaced through the reserved work station; At the same time, start motor three, which drives the gear set to rotate. The gear set meshes and drives the rack to extend while rotating, so that the push head pushes the connecting sleeve to drive the tool changing station and the inspection station. The tool handle at the reserved station extends out, and then the tool change handle drives the tool handle at the tool changing station to separate and rotate from the connecting sleeve. The clamping connection between the tool handle and the connecting sleeve is achieved through the cooperation of the ball and the inclined surface. The other end of the tool change handle drives the tool handle on the drill bit near the frame to rotate (at this time, the gas pressure relief piston body inside the control air nozzle moves downward under the action of the spring, so that the fixed pull ring opens, and the fixed pull ring will not tighten and lock the tool handle), the tool handles on both sides exchange positions, and then clamp each other, thereby realizing the tool changing operation; When the connecting sleeve on the connecting plate is not pushed by the pushing head, it is reset by the spring force of the torsion spring; Furthermore, the drill bit also includes a fixing ring, a connecting block, a piston body, a connecting ring, and a center rod. The outer side of the fixing cylinder is fixedly connected to a fixing ring, the fixing ring is fixedly connected to the sliding block 2, the outer side of the center shaft is fixedly connected to a connecting ring, the upper outer side of the center shaft is rotatably connected to the piston body, the piston body slides on the inner side of the fixing cylinder, the inner side of the piston body is fixedly connected to an evenly distributed guide rod, the outer side of the guide rod is sleeved with a spring, the upper inner side of the center shaft is slidably connected to a connecting block, a groove is provided on the connecting block, and a protrusion corresponding to the groove is provided on the center shaft, the connecting block is fixedly connected to the rotating shaft, the inner side of the center shaft is fixedly connected to the center rod, the lower end of the center rod is fixedly connected to a fixing pull ring, the inner lower side of the center shaft is provided with a slope, and the outer side of the fixing pull ring is provided with an inclined surface corresponding to the slope.

[0011] When the drill mechanism reciprocates up and down, one group of drill bits is controlled to retract upward, and the other group of drill bits is extended. Moreover, the two groups of drill bits are equipped with two drill bits of different sizes, one large and one small. At the same time, the motor 1 corresponding to the extended drill bit is started, and the motor 1 drives the shaft sleeve to rotate, and then drives the shaft to rotate synchronously. Since the shaft and the connecting block are fixedly connected, the connecting block synchronously drives the central shaft to rotate. Since the outer side of the central shaft is sleeved with multiple bearings, the fixed pull ring tightens the tool handle at the same time, and then drives the tool handle to rotate, so that the aluminum circuit board is drilled. In addition, a drill with a smaller aperture is first used for drilling, and then a larger drill is used for expansion, thereby effectively avoiding the problems of hole mouth defects and hole defects. Furthermore, the conversion mechanism includes a conversion motor, a movable shaft, a central fixed block, a fixed plate, and a rotating plate. The conversion motor is fixedly connected to the middle part of the upper side of the drill mechanism, the lower output end of the conversion motor is fixedly connected to the movable shaft, the lower end of the movable shaft is fixedly connected to the central fixed block, the outer side of the central fixed block is fixedly connected to a fixed plate, the fixed plate is fixedly connected to the guide rail 2, and a rectangular groove corresponding to the movable block is opened on the fixed plate.

[0012] Start the conversion motor, the conversion motor drives the movable shaft to rotate synchronously, the movable shaft drives the fixed plate to rotate through the central fixed block, and then drives the two sets of drill bits to freely convert; Furthermore, the monitoring component includes a reflective fixing plate, a connecting frame, a reflective plate, and an infrared rangefinder. The upper end of the piston block is fixedly connected to the connecting frame, and the connecting frame passes through the upper wall of the reinforced shell. Two connecting frames are provided, and the upper sides of the two connecting frames are fixedly connected to infrared rangefinders. The side of one connecting frame is fixedly connected to a reflective plate, and the side of the other connecting frame is fixedly connected to an infrared sensor, and the reflective plate corresponds to the infrared sensor. The upper side of the central fixed block is fixedly connected to a reflective fixing plate, and the reflective fixing plate corresponds to the infrared rangefinder.

[0013] At the same time, the infrared sensor emits infrared rays, which are reflected by the reflective plate. In this state, it can be seen that the two piston blocks are at the same height, so that the fixing force between the two sets of drill bits and their corresponding tool handles is the same. When the smaller drill is used to open a hole and the larger drill is used to expand the opening, the precision of the two drills is guaranteed to be the same, thereby ensuring the accuracy of the drilling.

[0014] Furthermore, the air nozzle group includes air outlet nozzle 1, air outlet nozzle 2, air inlet nozzle 1, and air inlet nozzle 2. The interior of the reinforced shell is divided into two cavities by a partition. The upper part of one cavity is connected to air outlet nozzle 1, and the lower part is connected to air inlet nozzle 2. The upper part of the other cavity is connected to air outlet nozzle 2, and the lower part is connected to air inlet nozzle 1.

[0015] During the micro-hole processing of the two sets of drill bits, the external air pump is connected to the air outlet nozzle 1 and the air outlet nozzle 2 to extract gas from the inside of the reinforced shell, and negative pressure is applied to the inside of the reinforced shell, so that the two piston blocks move upward, and then through the action of the evenly distributed inclined holes on the central axis, a negative pressure state is formed between the tool handle and the inner side of the central axis, thereby strengthening the fixing force between the tool handle and the spindle; Furthermore, a tool handle is clamped on the inner side of the connecting sleeve and the inner side of the central axis, and the air inlet nozzle 1 and the air inlet nozzle 2 are respectively connected to the corresponding control air nozzle 2 through a hose, and the upper part of the fixed cylinder is connected to the control air nozzle 1, and the control air nozzle 1 corresponds to the piston body.

[0016] Compared with the prior art, the present invention provides a micro through-hole processing device for aluminum circuit boards, which has the following beneficial effects: 1. The aluminum circuit board micro through-hole processing device has the function of independent operation and free conversion of double drill bits through the cooperation between the drill bit mechanism, the tool changing mechanism, the drill bit and the conversion mechanism. The segmented drilling can change the size of the drill bit by the soul of the double head, thereby improving the drilling efficiency and realizing the purpose of automatic and rapid replacement of the tool holder of the double drill bit. It changes the existing method of reciprocating drill bit replacement with a single drill bit, further improves the drilling efficiency, ensures the drilling accuracy of the aluminum circuit board, and solves the problem of low efficiency of the existing drilling rig.

[0017] 2. The micro through-hole processing device for aluminum circuit boards, through the cooperation of the tool changing mechanism, reinforcement mechanism, detection mechanism, detection station and reserved station, can realize the automatic detection of drill bits in sequence and automatic removal of severely worn drill bits, avoiding the situation that the aluminum circuit board material is hard and the drill bit is not replaced in time, resulting in low drilling accuracy, improving the overall drilling quality of the drilling rig, and at the same time ensuring the high stability of the double drill bits during the drilling process, and can monitor the fixing force of the tool holder and the spindle in real time, solving the common problem of existing automatic rapid tool change and poor stability between the tool holder and the spindle, and at the same time can control the fixing force between the double drill bits and their respective tool holders to maintain a high degree of consistency, thereby achieving a high degree of consistency in the accuracy of the double drill bits and ensuring the quality of opening and expanding the holes in the segmented drilling of the aluminum circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the drill bit mechanism of the present invention after being cut; Figure 3 It is a three-dimensional structural schematic diagram of the conversion mechanism of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the telescopic assembly of the present invention; Figure 5It is a three-dimensional structural schematic diagram of the reinforcement mechanism of the present invention; Figure 6 For the present invention Figure 5 The enlarged schematic diagram of point A in the middle; Figure 7 It is a schematic diagram of the three-dimensional structure of the gas nozzle assembly of the present invention; Figure 8 For the present invention Figure 7 The enlarged schematic diagram of point B in the middle; Fig. 9 It is a schematic diagram of the cutaway three-dimensional structure of the drill bit of the present invention; Fig.10 For the present invention Fig. 9 The enlarged schematic diagram of the center C; Fig.11 It is a three-dimensional structural schematic diagram of the tool changing mechanism of the present invention; Fig.12 It is a schematic diagram of the three-dimensional structure of the driving assembly of the present invention; Fig.13 It is a three-dimensional structural schematic diagram of the tool handle changer of the present invention; Fig.14 It is a three-dimensional structural schematic diagram of the tool changing member of the present invention; Fig.15 It is a three-dimensional structural schematic diagram of the tool changing member of the present invention from another angle; Fig.16 It is a schematic diagram of the three-dimensional structure of the detection mechanism of the present invention.

[0019] In the figure: 1, frame; 2, lifting mechanism; 21, lifting motor; 22, threaded rod; 23, moving block; 24, sliding block 1; 25, guide rail 1; 3, drill mechanism; 31, motor 1; 32, shaft sleeve; 33, shaft; 34, telescopic assembly; 341, telescopic cylinder; 342, piston rod; 343, moving block; 344, sliding block 2; 345, guide rail 2; 4, tool changing mechanism; 41, fixed frame; 42, Tool change handle; 43, drive assembly; 431, motor 2; 432, clutch; 433, bevel gear; 434, bevel gear plate; 435, rotating wheel; 436, rotating rod; 437, driving wheel; 438, connecting rod; 439, cylindrical ring; 430, fixed sleeve; 44, tool changer; 441, tool changer fixed plate; 442, rotating plate; 443, motor 3; 444, gear set; 445, rack; 446, connection disk; 447, connecting sleeve; 448, pushing head; 5, drill bit; 51, fixing ring; 52, fixing cylinder; 53, connecting block; 54, piston body; 55, connecting ring; 56, central shaft; 57, fixing pull ring; 58, central rod; 6, conversion mechanism; 61, conversion motor; 62, movable shaft; 63, central fixing block; 64, fixing plate; 65, rotating plate; 7, reinforcement mechanism; 71, reinforcement shell; 72, partition; 7 3. Piston block; 74. Monitoring assembly; 741. Reflection fixing plate; 742. Connecting frame; 743. Reflection plate; 744. Infrared rangefinder; 745. Infrared sensor; 75. Air nozzle assembly; 751. Air outlet nozzle 1; 752. Air outlet nozzle 2; 753. Air inlet nozzle 1; 754. Air inlet nozzle 2; 8. Detection mechanism; 81. Camera; 82. Detection tube; 9. Knife handle; 10. Control air nozzle 1; 11. Control air nozzle 2. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0021] See also Figure 1-Figure 16 A micro through-hole processing device for an aluminum circuit board comprises a frame 1, a lifting mechanism 2 is fixedly connected to the top of the frame 1, a drill mechanism 3 is fixedly connected to the lower side of the lifting mechanism 2, and a tool changing mechanism 4 is fixedly connected to the side of the frame 1 close to the drill mechanism 3 and to the lower side of the lifting mechanism 2; A drill bit 5 is fixedly connected to the lower side of the drill bit mechanism 3. Two groups of drill bits 5 are provided. A conversion mechanism 6 is provided between the two groups of drill bits 5. A reinforcement mechanism 7 is fixedly installed on one side of the conversion mechanism 6. The drill bit 5 includes a fixed cylinder 52, a central axis 56, and a fixed pull ring 57. The fixed cylinder 52 is arranged at the lower side of the drill bit mechanism 3. The inner side of the fixed cylinder 52 is rotatably connected with the central axis 56. The lower side of the central axis 56 is fixedly connected with the fixed pull ring 57. The lower part of the central axis 56 is provided with evenly distributed oblique holes. The reinforcement mechanism 7 includes a reinforcement shell 71, a partition 72, a piston block 73, a monitoring component 74, and a gas nozzle group 75. The reinforcement shell 71 is fixedly connected to one side of the conversion mechanism 6, and the partition 72 is fixedly connected to the inner middle part of the reinforcement shell 71. The inner side of the reinforcement shell 71 is slidably connected to the piston block 73. Two groups of piston blocks 73 are symmetrically arranged about the partition 72. The outer side of the reinforcement shell 71 is connected to the gas nozzle group 75. The gas nozzle group 75 is connected to the corresponding fixed cylinder 52 through the control gas nozzle 11. The upper side of the piston block 73 and the lower part of the conversion mechanism 6 are fixedly connected with the monitoring component 74.

[0022] Furthermore, the lifting mechanism 2 includes a lifting motor 21, a threaded rod 22, a moving block 23, a sliding block 24, and a guide rail 25. The top of the frame 1 is fixedly connected to the lifting motor 21, the lower output end of the lifting motor 21 is fixedly connected to the threaded rod 22, the outer side of the threaded rod 22 is threadedly connected to the moving block 23, the moving block 23 is fixedly connected to the side close to the frame 1 with a sliding block 24, the side of the frame 1 close to the moving block 23 is fixedly connected to the guide rail 25, and the sliding block 24 slides on the guide rail 25.

[0023] Furthermore, the drill mechanism 3 includes a motor 31, a rotating shaft sleeve 32, a rotating shaft 33, and a telescopic assembly 34. The lower side of the moving block 23 is fixedly connected to the outer shell, the top of the outer shell is fixedly connected to the motor 31, the lower output end of the motor 31 is fixedly connected to the rotating shaft sleeve 32, the inner side of the rotating shaft sleeve 32 is slidably connected to the rotating shaft 33, the lower end of the rotating shaft 33 is connected to the drill bit 5, and the outer side of the drill bit 5 is fixedly installed with a telescopic assembly 34; The telescopic assembly 34 includes a telescopic cylinder 341, a piston rod 342, a moving block 343, a sliding block 344, and a guide rail 345. The lower part of the conversion mechanism 6 is fixedly connected to the telescopic cylinder 341 through a rectangular block. The inner side of the telescopic cylinder 341 is slidably connected to the piston rod 342. The lower side of the piston rod 342 is fixedly connected to the moving block 343. The moving block 343 is fixedly connected to the drill bit 5. The inner side of the conversion mechanism 6 is fixedly connected to the guide rail 345. The outer side of the guide rail 345 is slidably connected to the sliding block 344. The sliding block 344 is fixedly connected to the drill bit 5.

[0024] The lifting motor 21 is started to rotate. While the lifting motor 21 is rotating, it drives the moving block 23 to move up and down, thereby driving the drill mechanism 3 to move up and down as a whole. Since two sets of drill bits 5 are equipped, the telescopic cylinder 341 is started by controlling the piston rod 342 to drive the moving block 343 to move up and down, thereby driving the drill bit 5 to move up and down, so that the two sets of drill bits 5 can be controlled to freely extend and retract; Further, the tool changing mechanism 4 includes a fixing frame 41, a tool changing handle 42, a driving assembly 43, and a tool changing member 44. The fixing frame 41 is fixedly connected to one side of the frame 1 close to the drill mechanism 3, the driving assembly 43 is fixedly installed on one side of the fixing frame 41 close to the drill mechanism 3, the tool changing member 44 is fixedly connected to one side of the fixing frame 41 away from the driving assembly 43, and the tool changing handle 42 is arranged on the lower side of the driving assembly 43; The driving assembly 43 includes a fixed sleeve 430, a motor 2 431, a clutch 432, a bevel gear 433, a bevel toothed disc 434, a rotating wheel 435, a rotating rod 436, a driving wheel 437, a connecting rod 438, and a cylindrical ring 439. The fixed frame 41 is fixedly connected to a fixed housing on the side away from the tool changing member 44, the motor 2 431 is fixedly connected to the upper side of the fixed housing, the clutch 432 is provided on the side of the motor 2 431 close to the tool changing member 44, the lower output end of the driving wheel 437 is fixedly connected to the bevel gear 433, the lower side of the bevel gear 433 is meshed with the bevel toothed disc 434, the side of the bevel toothed disc 434 away from the tool changing member 44 is fixedly connected to the rotating wheel 435, and the conical toothed disc 434 close to the tool changing member 44 is fixedly connected to the rotating wheel 435. A cam groove is provided on one side of the knife piece 44, and a circular shaft is rotatably connected to the center position of one side of the conical gear disk 434 near the knife changing piece 44, and a connecting rod 438 is fixedly connected to the lower side of the circular shaft, and a cylindrical block is provided at one end of the connecting rod 438, and the cylindrical block is arranged in the cam groove, and an intermittent slide groove is provided on the outer side of the rotating wheel 435, and a cylindrical ring 439 is provided in the intermittent slide groove, and a rotating rod 436 is fixedly connected to the inner side of the cylindrical ring 439, and a fixed sleeve 430 is fixedly connected to the outer side of the rotating rod 436 and on the lower side of the cylindrical ring 439, and the inner side of the fixed sleeve 430 is in contact with the other end of the connecting rod 438, and a driving wheel 437 is fixedly connected to the output end of the clutch 432, and the driving wheel 437 is in contact with the rotating disk 442.

[0025] Furthermore, the tool changing member 44 comprises a tool changing fixed disk 441, a rotating disk 442, a motor 443, a gear set 444, a rack 445, a connecting disk 446, a connecting sleeve 447, and a pushing head 448. The side of the fixed frame 41 away from the driving assembly 43 is fixedly connected to the tool changing fixed disk 441, the inner side of the tool changing fixed disk 441 is rotatably connected to the connecting disk 446, the side of the connecting disk 446 away from the driving assembly 43 is fixedly connected to the bottom plate, the side of the bottom plate away from the driving assembly 43 is rotatably connected to the gear set 444, the outer side of the gear set 444 is meshed with the rack 445, and the gear set 446 is meshed with the rack 445. One end of the rack 445 is fixedly connected to a push head 448, and a mounting shell is fixedly connected to the side of the bottom plate away from the driving assembly 43. The mounting shell is provided with a through slot corresponding to the rack 445. The outer side of the mounting shell is fixedly connected to a rotating disk 442, and the inner side of the connecting disk 446 is rotatably connected to a uniformly distributed connecting sleeve 447. The connecting sleeve 447 is rotatably connected to the connecting disk 446 through a connecting shaft. A torsion spring is sleeved on the outer side of the connecting shaft, and one end of the torsion spring is fixedly connected to the connecting disk 446, and the other end is fixedly connected to the connecting sleeve 447. The lower side of the rotating rod 436 is fixedly connected to the tool changing handle 42. When the tool handle 9 is replaced, the motor 2 431 is started. The motor 2 431 drives the bevel gear 433 to rotate while rotating. The bevel gear 433 meshes and drives the bevel gear plate 434 to rotate. The bevel gear plate 434 drives the rotating wheel 435 fixedly connected thereto to rotate synchronously. Since a cam groove is provided on the bevel gear plate 434, the connecting rod 438 is driven to swing back and forth under the action of the cam groove. At the same time, under the action of the intermittent slide groove on the rotating wheel 435, the cylindrical ring 439 is driven to rotate 180 degrees intermittently. Then, under the action of the connecting rod 438, the rotating rod 436 is made to rotate 180 degrees intermittently and move up and down at the same time. At the same time, the external control system controls the clutch 432 to engage and disengage intermittently, thereby driving the driving wheel 437 to rotate intermittently. The driving wheel 437 drives the rotating disk 442 to rotate intermittently, thereby driving the connecting sleeve 447 to move intermittently in sequence to the tool changing station. The tool changing fixed plate 441 is provided with an inspection station, a tool changing station and two reserved stations. The inspection station is provided with an inspection mechanism 8, which includes a camera 81 and an inspection tube 82. The fixed frame 41 is fixedly connected to the camera 81 through an L-shaped rod, and the inspection tube 82 is fixedly installed on the inner side of the camera 81.

[0026] While the tool handle 9 on the connecting plate 446 rotates intermittently, the tool handle 9 passes through the camera 81 and the detection tube 82 in turn to take pictures of the drill on the tool handle 9, and then transmit the image information to the numerical control system, and then automatically detect the wear of the drill bit. If the drill bit is seriously worn, the drill bit is replaced through the reserved work station; At the same time, start the motor three 443, which drives the gear set 444 to rotate. The gear set 444 meshes and drives the rack 445 to extend while rotating, so that the push head 448 pushes the connecting sleeve 447 to drive the tool changing station and the inspection station. The tool handle 9 at the reserved station extends, and then the tool change handle 42 drives the tool handle 9 at the tool changing station to separate and rotate from the connecting sleeve 447. The clamping connection between the tool handle 9 and the connecting sleeve 447 is achieved through the cooperation of the ball and the inclined surface. The other end of the tool change handle 42 drives the tool handle 9 on the drill bit 5 near the frame 1 to rotate. At this time, the gas pressure relief piston body 54 inside the control nozzle 10 moves downward under the action of the spring, so that the fixed pull ring 57 opens, and the fixed pull ring 57 will not tighten and lock the tool handle 9. The tool handles 9 on both sides exchange positions and then clamp each other, thereby realizing the tool changing operation. When the connecting sleeve 447 on the connecting disk 446 is not pushed by the pushing head 448, it is reset by the spring force of the torsion spring; Furthermore, the drill bit 5 also includes a fixing ring 51, a connecting block 53, a piston body 54, a connecting ring 55, and a center rod 58. The fixing ring 51 is fixedly connected to the outer side of the fixing cylinder 52, and the fixing ring 51 is fixedly connected to the sliding block 344. The connecting ring 55 is fixedly connected to the outer side of the center shaft 56. The upper outer side of the center shaft 56 is rotatably connected to the piston body 54, and the piston body 54 slides on the inner side of the fixing cylinder 52. The inner side of the piston body 54 is fixedly connected to a uniformly distributed guide rod, and a spring is sleeved on the outer side of the guide rod. The connecting block 53 is slidably provided on the inner side of the upper part of the center shaft 56. A groove is provided on the connecting block 53, and a convex block corresponding to the groove is provided on the center shaft 56. The connecting block 53 is fixedly connected to the rotating shaft 33, and a center rod 58 is fixedly connected to the inner side of the center shaft 56. The lower end of the center rod 58 is fixedly connected to a fixing pull ring 57. A slope is provided on the inner lower side of the center shaft 56, and an inclined surface corresponding to the slope is provided on the outer side of the fixing pull ring 57.

[0027] When the drill mechanism 3 performs reciprocating up and down motion, one group of drill bits 5 is controlled to retract upward, and the other group of drill bits 5 is extended. Moreover, the two groups of drill bits 5 are equipped with two drill bits of different sizes, one large and one small. At the same time, the motor 31 corresponding to the extended drill bit 5 is started, and the motor 31 drives the shaft sleeve 32 to rotate, thereby driving the shaft 33 to rotate synchronously. Since the shaft 33 and the connecting block 53 are fixedly connected, the connecting block 53 synchronously drives the central shaft 56 to rotate. Since the outer side of the central shaft 56 is sleeved with multiple bearings, the fixed pull ring 57 tightens the tool handle 9, thereby driving the tool handle 9 to rotate, so that the aluminum circuit board is drilled. In addition, a drill bit with a smaller aperture is first used for drilling, and then a larger drill bit is used for expansion, thereby effectively avoiding the problems of hole mouth defects and hole defects. Furthermore, the conversion mechanism 6 includes a conversion motor 61, a movable shaft 62, a central fixed block 63, a fixed plate 64, and a rotating plate 65. The conversion motor 61 is fixedly connected to the middle part of the upper side of the drill mechanism 3, the lower output end of the conversion motor 61 is fixedly connected to the movable shaft 62, the lower end of the movable shaft 62 is fixedly connected to the central fixed block 63, the outer side of the central fixed block 63 is fixedly connected to the fixed plate 64, the fixed plate 64 is fixedly connected to the guide rail 2 345, and a rectangular groove corresponding to the moving block 343 is opened on the fixed plate 64.

[0028] The conversion motor 61 is started, and the conversion motor 61 drives the movable shaft 62 to rotate synchronously. The movable shaft 62 drives the fixed plate 64 to rotate through the central fixed block 63, thereby driving the two sets of drill bits 5 to freely switch; Furthermore, the monitoring component 74 includes a reflective fixing plate 741, a connecting frame 742, a reflective plate 743, and an infrared rangefinder 744. The upper end of the piston block 73 is fixedly connected to the connecting frame 742, and the connecting frame 742 passes through the upper wall of the reinforced shell 71. Two connecting frames 742 are provided, and the upper sides of the two connecting frames 742 are fixedly connected to the infrared rangefinder 744. The side of one connecting frame 742 is fixedly connected to the reflective plate 743, and the side of the other connecting frame 742 is fixedly connected to the infrared sensor 745, and the reflective plate 743 corresponds to the infrared sensor 745. The upper side of the central fixed block 63 is fixedly connected to the reflective fixing plate 741, and the reflective fixing plate 741 corresponds to the infrared rangefinder 744.

[0029] At the same time, the infrared sensor 745 emits infrared rays, which are reflected by the reflective plate 743. In this state, it can be seen that the two piston blocks 73 are at the same height, so that the fixing force between the two sets of drill bits 5 and their corresponding tool handles 9 is the same. When a smaller drill is used to open a hole and a larger drill is used to expand a hole, the precision of the two drills is ensured to be the same, thereby ensuring the accuracy of the drilling.

[0030] Furthermore, the air nozzle group 75 includes an air outlet nozzle 1 751, an air outlet nozzle 2 752, an air inlet nozzle 1 753, and an air inlet nozzle 2 754. The interior of the reinforced shell 71 is divided into two cavities by a partition 72. The upper part of one cavity is connected to the air outlet nozzle 1 751, and the lower part is connected to the air inlet nozzle 2 754. The upper part of the other cavity is connected to the air outlet nozzle 2 752, and the lower part is connected to the air inlet nozzle 1 753.

[0031] During the micro-hole processing of the two sets of drill bits 5, the external air pump is connected to the air outlet nozzle 1 751 and the air outlet nozzle 2 752 to extract gas from the inside of the reinforced shell 71, and apply negative pressure to the inside of the reinforced shell 71, so that the two piston blocks 73 move upward, and then through the effect of the evenly distributed inclined holes on the central shaft 56, a negative pressure state is formed between the tool handle 9 and the inner side of the central shaft 56, thereby strengthening the fixing force between the tool handle 9 and the main shaft; Furthermore, the inner side of the connecting sleeve 447 and the inner side of the central axis 56 are clamped with the tool handle 9, and the air inlet nozzle 1 753 and the air inlet nozzle 2 754 are respectively connected to the corresponding control air nozzle 2 11 through a hose, and the upper part of the fixed cylinder 52 is connected to the control air nozzle 10, which corresponds to the piston body 54.

[0032] The specific usage and function of this embodiment are as follows: When in use, the device is equipped in the CNC machine drilling equipment. The device can be moved horizontally through the external CNC machine equipment. The aluminum circuit board with processed drilling holes is placed on the machine table. The aluminum circuit board is fixed with rivets. The circuit board can be moved vertically through the external CNC machine equipment. The CNC machine tool system controls and starts the lifting motor 21 to rotate. While the lifting motor 21 rotates, it drives the moving block 23 to move up and down, thereby driving the drill mechanism 3 to move up and down as a whole. Since two sets of drill bits 5 are equipped, the telescopic cylinder 341 is controlled and started at the same time, and the piston rod 342 drives the moving block 343 to move up and down, thereby driving the drill bit 5 to move up and down, so that the two sets of drill bits 5 can be controlled to freely extend and retract; When the drill mechanism 3 performs reciprocating up and down motion, one group of drill bits 5 is controlled to retract upward, and the other group of drill bits 5 is extended. Moreover, the two groups of drill bits 5 are equipped with two drill bits of different sizes, one large and one small. At the same time, the motor 31 corresponding to the extended drill bit 5 is started, and the motor 31 drives the shaft sleeve 32 to rotate, thereby driving the shaft 33 to rotate synchronously. Since the shaft 33 and the connecting block 53 are fixedly connected, the connecting block 53 synchronously drives the central shaft 56 to rotate. Since the outer side of the central shaft 56 is sleeved with multiple bearings, the fixed pull ring 57 tightens the tool handle 9, thereby driving the tool handle 9 to rotate, so that the aluminum circuit board is drilled. In addition, a drill bit with a smaller aperture is first used for drilling, and then a larger drill bit is used for expansion, thereby effectively avoiding the problems of hole mouth defects and hole defects. By starting the conversion motor 61, the conversion motor 61 drives the movable shaft 62 to rotate synchronously, and the movable shaft 62 drives the fixed plate 64 to rotate through the central fixed block 63, thereby driving the two sets of drill bits 5 to freely switch; When the tool handle 9 is replaced, the motor 2 431 is started. The motor 2 431 drives the bevel gear 433 to rotate while rotating. The bevel gear 433 meshes and drives the bevel gear plate 434 to rotate. The bevel gear plate 434 drives the rotating wheel 435 fixedly connected thereto to rotate synchronously. Since a cam groove is provided on the bevel gear plate 434, the connecting rod 438 is driven to swing back and forth under the action of the cam groove. At the same time, under the action of the intermittent slide groove on the rotating wheel 435, the cylindrical ring 439 is driven to rotate 180 degrees intermittently. Then, under the action of the connecting rod 438, the rotating rod 436 is made to rotate 180 degrees intermittently and move up and down at the same time. At the same time, the external control system controls the clutch 432 to engage and disengage intermittently, thereby driving the driving wheel 437 to rotate intermittently. The driving wheel 437 drives the rotating disk 442 to rotate intermittently, thereby driving the connecting sleeve 447 to move intermittently in sequence to the tool changing station. At the same time, start the motor three 443, which drives the gear set 444 to rotate. The gear set 444 meshes and drives the rack 445 to extend while rotating, so that the push head 448 pushes the connecting sleeve 447 to drive the tool changing station and the inspection station. The tool handle 9 at the reserved station extends, and then the tool change handle 42 drives the tool handle 9 at the tool changing station to separate and rotate from the connecting sleeve 447. The clamping connection between the tool handle 9 and the connecting sleeve 447 is achieved through the cooperation of the ball and the inclined surface. The other end of the tool change handle 42 drives the tool handle 9 on the drill bit 5 near the frame 1 to rotate. At this time, the gas pressure relief piston body 54 inside the control nozzle 10 moves downward under the action of the spring, so that the fixed pull ring 57 opens, and the fixed pull ring 57 will not tighten and lock the tool handle 9. The tool handles 9 on both sides exchange positions and then clamp each other, thereby realizing the tool changing operation. When the connecting sleeve 447 on the connecting disk 446 is not pushed by the pushing head 448, it is reset by the spring force of the torsion spring; At the same time, by freely switching between the two sets of drill bits 5, the tool handles 9 on the two sets of drill bits 5 can be freely and quickly replaced; While the tool handle 9 on the connecting plate 446 rotates intermittently, the tool handle 9 passes through the camera 81 and the detection tube 82 in turn to take pictures of the drill on the tool handle 9, and then transmit the image information to the numerical control system, and then automatically detect the wear of the drill bit. If the drill bit is seriously worn, the drill bit is replaced through the reserved work station; During the micro-hole processing of the two sets of drill bits 5, the external air pump is connected to the air outlet nozzle 1 751 and the air outlet nozzle 2 752 to extract gas from the inside of the reinforced shell 71, and apply negative pressure to the inside of the reinforced shell 71, so that the two piston blocks 73 move upward, and then through the effect of the evenly distributed inclined holes on the central shaft 56, a negative pressure state is formed between the tool handle 9 and the inner side of the central shaft 56, thereby strengthening the fixing force between the tool handle 9 and the main shaft; The fixing force between the two sets of drill bits 5 and their corresponding tool handles 9 can be indirectly known by the upward movement distance of the piston block 73, and the infrared rangefinder 744 can measure the upward movement distance of the partition 72 by emitting infrared rays to the monitoring component 74, so that the external system can freely control the fixing force between the two sets of drill bits 5 and their corresponding tool handles 9, thereby ensuring the drilling accuracy and drilling quality; At the same time, the infrared sensor 745 emits infrared rays, which are reflected by the reflective plate 743. In this state, it can be seen that the two piston blocks 73 are at the same height, so that the fixing force between the two sets of drill bits 5 and their corresponding tool handles 9 is the same. When a smaller drill is used to open a hole and a larger drill is used to expand a hole, the precision of the two drills is ensured to be the same, thereby ensuring the accuracy of the drilling.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A micro-through-hole processing device for an aluminum circuit board, comprising a frame (1), a lifting mechanism (2) being fixedly connected to the top of the frame (1), characterized in that: A drill mechanism (3) is fixedly connected to the lower side of the lifting mechanism (2), and a tool changing mechanism (4) is fixedly connected to the side of the frame (1) close to the drill mechanism (3) and on the lower side of the lifting mechanism (2); A drill bit (5) is fixedly connected to the lower side of the drill bit mechanism (3), two groups of the drill bits (5) are provided, a conversion mechanism (6) is provided between the two groups of the drill bits (5), and a reinforcement mechanism (7) is fixedly installed on one side of the conversion mechanism (6); The drill bit (5) comprises a fixed cylinder (52), a central shaft (56), and a fixed pull ring (57); the fixed cylinder (52) is arranged on the lower side of the drill bit mechanism (3); the inner side of the fixed cylinder (52) is rotatably connected to the central shaft (56); the lower side of the central shaft (56) is fixedly connected to the fixed pull ring (57); and the lower part of the central shaft (56) is provided with evenly distributed inclined holes; The reinforcement mechanism (7) comprises a reinforcement shell (71), a partition (72), a piston block (73), a monitoring component (74), and a gas nozzle group (75). One side of the conversion mechanism (6) is fixedly connected to the reinforcement shell (71), the middle part of the inner side of the reinforcement shell (71) is fixedly connected to the partition (72), the inner side of the reinforcement shell (71) is slidably connected to the piston block (73), two groups of the piston blocks (73) are symmetrically arranged with respect to the partition (72), the outer side of the reinforcement shell (71) is connected to the gas nozzle group (75), and the gas nozzle group (75) is respectively connected to the corresponding fixed cylinder (52) through the control gas nozzle 2 (11), and the upper side of the piston block (73) and the lower part of the conversion mechanism (6) are fixedly connected to the monitoring component (74).

2. The device for processing micro-through holes of aluminum circuit boards according to claim 1, characterized in that: The lifting mechanism (2) comprises a lifting motor (21), a threaded rod (22), a moving block (23), a sliding block (24), and a guide rail (25); the top of the frame (1) is fixedly connected to the lifting motor (21); the lower output end of the lifting motor (21) is fixedly connected to the threaded rod (22); the outer side of the threaded rod (22) is threadedly connected to the moving block (23); the moving block (23) is fixedly connected to the sliding block (24) on one side close to the frame (1); the frame (1) is fixedly connected to the moving block (23) on one side close to the guide rail (25); and the sliding block (24) slides on the guide rail (25).

3. The device for processing micro-through holes in aluminum circuit boards according to claim 2, characterized in that: The drill mechanism (3) comprises a motor 1 (31), a rotating shaft sleeve (32), a rotating shaft (33), and a telescopic assembly (34); the lower side of the moving block (23) is fixedly connected to an outer shell; the top of the outer shell is fixedly connected to the motor 1 (31); the lower output end of the motor 1 (31) is fixedly connected to the rotating shaft sleeve (32); the inner side of the rotating shaft sleeve (32) is slidably connected to the rotating shaft (33); the lower end of the rotating shaft (33) is connected to the drill bit (5); and the outer side of the drill bit (5) is fixedly mounted with the telescopic assembly (34); The telescopic assembly (34) comprises a telescopic cylinder (341), a piston rod (342), a moving block (343), a second sliding block (344), and a second guide rail (345); the lower part of the conversion mechanism (6) is fixedly connected to the telescopic cylinder (341) via a rectangular block; the inner side of the telescopic cylinder (341) is slidably connected to the piston rod (342); the lower side of the piston rod (342) is fixedly connected to the moving block (343); the moving block (343) is fixedly connected to the drill bit (5); the inner side of the conversion mechanism (6) is fixedly connected to the second guide rail (345); the outer side of the second guide rail (345) is slidably connected to the second sliding block (344); the second sliding block (344) is fixedly connected to the drill bit (5).

4. The device for processing micro-through holes of aluminum circuit boards according to claim 1, characterized in that: The tool changing mechanism (4) comprises a fixing frame (41), a tool changing handle (42), a driving assembly (43), and a tool changing member (44); the fixing frame (41) is fixedly connected to a side of the frame (1) close to the drill mechanism (3); the driving assembly (43) is fixedly mounted to a side of the fixing frame (41) close to the drill mechanism (3); the tool changing member (44) is fixedly connected to a side of the fixing frame (41) away from the driving assembly (43); and the tool changing handle (42) is provided on the lower side of the driving assembly (43); The driving assembly (43) comprises a fixed sleeve (430), a second motor (431), a clutch (432), a bevel gear (433), a bevel toothed disc (434), a rotating wheel (435), a rotating rod (436), a driving wheel (437), a connecting rod (438), and a cylindrical ring (439); a fixed housing is fixedly connected to a side of the fixed frame (41) away from the tool changing member (44); a second motor (431) is fixedly connected to an upper side of the fixed housing; a clutch (432) is provided on a side of the second motor (431) close to the tool changing member (44); a bevel gear (433) is fixedly connected to a lower output end of the driving wheel (437); a bevel toothed disc (434) is meshed with a lower side of the bevel gear (433); a rotating wheel (435) is fixedly connected to a side of the bevel toothed disc (434) away from the tool changing member (44); ), a cam groove is provided on one side of the conical toothed disc (434) close to the tool changing member (44), a circular shaft is rotatably connected to the center position of one side of the conical toothed disc (434) close to the tool changing member (44), a connecting rod (438) is fixedly connected to the lower side of the circular shaft, a cylindrical block is provided at one end of the connecting rod (438), the cylindrical block is arranged in the cam groove, an intermittent slide groove is provided on the outer side of the rotating wheel (435), a cylindrical ring (439) is provided in the intermittent slide groove, a rotating rod (436) is fixedly connected to the inner side of the cylindrical ring (439), a fixing sleeve (430) is fixedly connected to the outer side of the rotating rod (436) and on the lower side of the cylindrical ring (439), the inner side of the fixing sleeve (430) is in contact with the other end of the connecting rod (438), and a driving wheel (437) is fixedly connected to the output end of the clutch (432).

5. The device for processing micro-through holes of aluminum circuit boards according to claim 4, characterized in that: The tool changing component (44) comprises a tool changing fixed disk (441), a rotating disk (442), a motor (443), a gear set (444), a rack (445), a connecting disk (446), a connecting sleeve (447), and a pushing head (448); a side of the fixed frame (41) away from the driving assembly (43) is fixedly connected to the tool changing fixed disk (441); an inner side of the tool changing fixed disk (441) is rotatably connected to the connecting disk (446); a side of the connecting disk (446) away from the driving assembly (43) is fixedly connected to a bottom plate; a side of the bottom plate away from the driving assembly (43) is rotatably connected to the gear set (444); an outer side of the gear set (444) is meshed with a rack (445); one side of the rack (445) is meshed with a gear set (444); The end of the bottom plate is fixedly connected with a push head (448), the side of the bottom plate away from the driving assembly (43) is fixedly connected with a mounting shell, the mounting shell is provided with a through slot corresponding to the rack (445), the outer side of the mounting shell is fixedly connected with a rotating disk (442), the inner side of the connecting disk (446) is rotatably connected with a uniformly distributed connecting sleeve (447), the connecting sleeve (447) is rotatably connected to the connecting disk (446) through a connecting shaft, the outer side of the connecting shaft is sleeved with a torsion spring, one end of the torsion spring is fixedly connected to the connecting disk (446), and the other end is fixedly connected to the connecting sleeve (447), the lower side of the rotating rod (436) is fixedly connected to the tool changing handle (42), and the driving wheel (437) is in contact with the rotating disk (442); The tool changing fixed plate (441) is provided with an inspection station, a tool changing station and two reserved stations; the inspection station is provided with an inspection mechanism (8); the inspection mechanism (8) comprises a camera (81) and an inspection cylinder (82); the fixing frame (41) is fixedly connected to the camera (81) via an L-shaped rod; the inspection cylinder (82) is fixedly mounted on the inner side of the camera (81).

6. The aluminum circuit board micro-through hole processing device according to claim 1, characterized in that: The drill bit (5) further comprises a fixing ring (51), a connecting block (53), a piston body (54), a connecting ring (55), and a center rod (58); the fixing ring (51) is fixedly connected to the outer side of the fixing cylinder (52); the fixing ring (51) is fixedly connected to the second sliding block (344); the connecting ring (55) is fixedly connected to the outer side of the center shaft (56); the piston body (54) is rotatably connected to the outer side of the upper part of the center shaft (56); the piston body (54) slides on the inner side of the fixing cylinder (52); the inner side of the piston body (54) is fixedly connected to a uniformly distributed guide A rod, a spring is sleeved on the outer side of the guide rod, a connecting block (53) is slidably provided on the inner side of the upper part of the central shaft (56), a groove is provided on the connecting block (53), a convex block corresponding to the groove is provided on the central shaft (56), the connecting block (53) is fixedly connected to the rotating shaft (33), a central rod (58) is fixedly connected to the inner side of the central shaft (56), a fixed pull ring (57) is fixedly connected to the lower end of the central rod (58), a slope is provided on the inner lower side of the central shaft (56), and an inclined surface corresponding to the slope is provided on the outer side of the fixed pull ring (57).

7. The device for processing micro-through holes in aluminum circuit boards according to claim 3, characterized in that: The conversion mechanism (6) comprises a conversion motor (61), a movable shaft (62), a central fixed block (63), a fixed plate (64), and a rotating plate (65); the conversion motor (61) is fixedly connected to the middle portion of the upper side of the drill mechanism (3); the movable shaft (62) is fixedly connected to the lower output end of the conversion motor (61); the central fixed block (63) is fixedly connected to the lower end of the movable shaft (62); the fixed plate (64) is fixedly connected to the outer side of the central fixed block (63); the fixed plate (64) is fixedly connected to the second guide rail (345); and a rectangular groove corresponding to the movable block (343) is provided on the fixed plate (64).

8. The device for processing micro-through holes in aluminum circuit boards according to claim 7, characterized in that: The monitoring component (74) comprises a reflective fixing plate (741), a connecting frame (742), a reflective plate (743), and an infrared rangefinder (744). The upper end of the piston block (73) is fixedly connected to the connecting frame (742), and the connecting frame (742) passes through the upper wall of the reinforced shell (71). Two connecting frames (742) are provided, and the upper sides of the two connecting frames (742) are fixedly connected to the infrared rangefinder (744). The side of one connecting frame (742) is fixedly connected to the reflective plate (743), and the side of the other connecting frame (742) is fixedly connected to the infrared sensor (745). The reflective plate (743) corresponds to the infrared sensor (745). The upper side of the central fixing block (63) is fixedly connected to the reflective fixing plate (741), and the reflective fixing plate (741) corresponds to the infrared rangefinder (744).

9. The aluminum circuit board micro-through hole processing device according to claim 6, characterized in that: The air nozzle group (75) comprises an air outlet nozzle 1 (751), an air outlet nozzle 2 (752), an air inlet nozzle 1 (753), and an air inlet nozzle 2 (754). The interior of the reinforced shell (71) is divided into two cavities by a partition (72). The upper part of one of the cavities is connected to the air outlet nozzle 1 (751), and the lower part is connected to the air inlet nozzle 2 (754). The upper part of the other cavity is connected to the air outlet nozzle 2 (752), and the lower part is connected to the air inlet nozzle 1 (753).

10. The device for processing micro-through holes in aluminum circuit boards according to claim 9, characterized in that: The inner side of the connecting sleeve (447) and the inner side of the central shaft (56) are clamped with a knife handle (9); the air inlet nozzle 1 (753) and the air inlet nozzle 2 (754) are respectively connected to the corresponding control air nozzle 2 (11) through a hose; the upper part of the fixed cylinder (52) is connected to the control air nozzle 1 (10); the control air nozzle 1 (10) corresponds to the piston body (54).

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