A milling device and method for carbon fiber composite plates

Abstract

This invention belongs to the technical field of milling devices, specifically disclosing a milling device and method for carbon fiber composite boards. It includes a milling cutter device, a drill mounted on top of the milling cutter device, a rotating shaft below the drill, a switching assembly mounted below the rotating shaft, and a milling cutter assembly below the switching assembly. The switching assembly includes a fixed disk fixedly mounted at the lower end of the rotating shaft, two sets of semi-sleeves at the lower end of the fixed disk, mounting edges on both sides of each set of semi-sleeves, a circular groove at the center of each set of semi-sleeves, mounting grooves inside both sides of each set of semi-sleeves, movable grooves within each set of mounting grooves, and four sets of gears rotatably mounted inside each set of mounting grooves. This invention, through the overall coordinated use, satisfies the structural changes of the drilling and milling cutter assembly during milling, enabling the processing of countersunk holes and reversed holes.

Description

Technical Field

[0001] This invention belongs to the field of milling device technology, and specifically discloses a milling device and method for carbon fiber composite plates. Background Technology

[0002] Currently, carbon fiber composite plates are key load-bearing components for new energy equipment. They require high-precision hole positions. Traditional milling cutter machines lack the ability to coordinate and control multi-directional cutting forces and can often only process round holes. They cannot directly process countersunk or countersunk holes while milling. However, when milling countersunk or countersunk holes, milling cutter machines are usually forced to adopt a step-by-step processing mode of "drilling first and then milling countersunk", which not only requires repeated positioning but also requires tool changing. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a milling device and method for carbon fiber composite plates.

[0004] To achieve the above objectives, the present invention provides a milling device and method for carbon fiber composite panels, including a milling cutter device. A drill is mounted on the upper part of the milling cutter device, and a rotating shaft is mounted on the lower side of the drill. A switching assembly is mounted on the lower side of the rotating shaft, and a milling cutter assembly is mounted on the lower side of the switching assembly. The switching assembly includes a fixed plate fixedly mounted on the lower end of the rotating shaft. Two sets of semi-sleeves are provided at the lower end of the fixed plate. Both sets of semi-sleeves have mounting edges on both sides, a circular groove is provided at the center of both sets of semi-sleeves, and mounting grooves are provided inside both sides of both sets of semi-sleeves. Each of the mounting grooves contains a... The device has movable slots, and four sets of gears are rotatably arranged on the inner side of each of the two sets of mounting slots. A movable block is movably arranged on the inner side of the circular slot, and several sets of toothed rings are fixedly arranged on the outer side of the movable block. A first spring is fixedly arranged between the movable block and the upper inner wall of the circular slot. A cylinder is fixedly arranged inside the lower side of each of the two sets of semi-cylinder sleeves. Two sets of fixing bars are fixedly arranged inside the cylinder. A drilling cutter is movably inserted inside the cylinder. A slot is opened on both sides of the drilling cutter. A positioning bolt is threadedly connected to the lower side of each of the two sets of semi-cylinder sleeves at the position corresponding to the drilling cutter. A rack is movably arranged on the inner side of each of the two sets of movable slots.

[0005] In the above technical solution, preferably, the milling cutter assembly includes a circular disk fixedly disposed at the lower end of two sets of racks. An annular groove is formed on the outer side of the circular disk, and a control disk is rotatably disposed on the inner side of the annular groove. Four sets of guide ports are formed on the inner side of the control disk. A fixing block is fixedly disposed on one side of the control disk, and a positioning rod is movably disposed on the inner side of the fixing block. A limit ring is fixedly disposed on the outer side of the positioning rod, and a second spring is sleeved between the limit ring on the outer side of the positioning rod and the fixing block. A positioning block is fixedly disposed on one side of the circular disk corresponding to the lower position of the fixing block. Two sets of positioning holes are formed on the inner side of the positioning block. Four sets of sliding grooves are formed inside the lower side of the circular disk, and sliding blocks are slidably disposed on the inner side of each of the four sets of sliding grooves.

[0006] In the above technical solution, preferably, a round shaft is fixedly provided at the upper end of the sliding block, a cavity is provided inside the sliding block, a positioning sleeve is fixedly provided on the upper inner wall of the cavity, a milling cutter block is movably provided inside one side of the cavity, a connecting shaft is fixedly provided inside the upper side of the milling cutter block, two sets of fixing sleeves are fixedly provided at one end of the milling cutter block near the center position, each of the two sets of fixing sleeves has a movable opening inside, a threaded sleeve is movably provided inside the two sets of fixing sleeves, two sets of fixing shafts are fixedly provided on the outer side of the threaded sleeve, an adjusting bolt is threadedly connected to the inner side of the threaded sleeve, and a round block is fixedly provided on the upper side of the adjusting bolt.

[0007] In the above technical solution, preferably, one of the two sets of semi-cylindrical sleeves is fixedly installed with the fixed plate, and the two sets of semi-cylindrical sleeves are installed together along the edge by fixing bolts. The circular groove is connected to the installation groove and the movable groove. The gear is adapted to the toothed ring provided on the outside of the movable block.

[0008] In the above technical solution, preferably, the fixing strip engages with the slot, the drilling cutter is inserted into the interior of the movable slot, the drilling cutter is inserted into the interior of the cylinder, the positioning bolt passes through the half-sleeve to fix the drilling cutter, and the rack engages with the gear.

[0009] In the above technical solution, preferably, the guide opening is inclined, the positioning rod passes through the fixing block to the inside of the positioning hole, and the inner side of the slide groove communicates with the inside of the annular groove.

[0010] In the above technical solution, preferably, the circular shaft passes through the upper side of the slide groove to the inside of the guide opening, the positioning sleeve is inclined, and the connecting shaft and the sliding block are rotatably connected.

[0011] In the above technical solution, preferably, the fixing sleeve is adapted to the size of the cavity along the rotation trajectory of the connecting shaft, the fixing shaft is located inside the movable opening, and the circular block is rotatably located inside the positioning sleeve.

[0012] A method for using a milling device is also provided, for operating a milling device and method for a carbon fiber composite plate, including the following steps:

[0013] S1: After inserting the cylinder, push the movable block upward to slide in the circular groove. The gear ring will then drive the gear to rotate, causing the drive rack to move the milling cutter assembly downward. This drives the distance between the milling cutter assembly and the drilling cutter to meet the structural changes of the drilling cutter and the milling cutter assembly during milling.

[0014] S2: By controlling the rotation of four sets of adjusting bolts, the fixed sleeve and the milling cutter block are pushed to rotate along the connecting shaft, so that the milling cutter block becomes tilted, and in conjunction with the drilling cutter, the four sets of milling cutter blocks are rotated to open the countersunk hole.

[0015] S3: By pulling up the positioning rod, the control panel is rotated, and the four sets of guide ports drive the four sets of round shafts and sliding blocks to slide in the slide groove, so that the four sets of milling cutter blocks come together and cooperate with the displacement changes generated during the adjustment of the four sets of milling cutter blocks.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Align the slot on the drilling cutter with the fixing strip and insert it into the inside of the cylinder. When it contacts the movable block, the drilling cutter can be fixed and installed by the positioning bolts on the front and rear sides. Then, the drilling machine and rotating shaft drive the switching component and the milling cutter assembly to rotate and mill the hole. When countersunk machining is required, during installation, after inserting it into the cylinder, push the movable block upward to slide it in the circular groove, while squeezing the first spring. The toothed ring on the outside of the movable block will drive the gear to rotate. The rotating gear will drive the rack to move the milling cutter assembly downward, so that the distance between the milling cutter assembly and the drilling cutter meets the structural changes when the drilling cutter and the milling cutter assembly are milling the hole, which can quickly process the countersunk hole.

[0018] 2. By controlling the rotation of the adjusting bolts in the four sets of sliding blocks through the tool, the threaded sleeve of the threaded connection drives the fixed shaft to move upward, pushing the fixed sleeve and the milling cutter block to rotate along the connecting shaft. The fixed sleeve moves into the cavity, thereby making the milling cutter block in an inclined state. In conjunction with the drilling and milling cutter, it drives the four sets of milling cutter blocks to rotate and open countersunk holes. The switching between the flat and inclined states of the four sets of milling cutter blocks can simultaneously realize the processing of countersunk holes and countersunk holes, improving the processing efficiency of different milling holes.

[0019] 3. By pulling the positioning rod upward, the limiting ring squeezes the second spring, and the positioning rod leaves the set of positioning holes. This causes the fixing block and control disc to rotate in the annular groove. Then, the positioning rod is inserted into another set of positioning holes. The four sets of guide ports drive the four sets of round shafts and sliding blocks to slide in the slide groove, so that the four sets of milling cutter blocks come together. This, combined with the displacement changes generated during the adjustment of the four sets of milling cutter blocks, satisfies the adjustment of two types of hole processing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a milling device and method for carbon fiber composite plates proposed in this invention.

[0021] Figure 2 This is a partial structural schematic diagram of a milling device and method for carbon fiber composite plates proposed in this invention.

[0022] Figure 3 This is a schematic diagram of the internal structure of the switching component of the milling device and method for carbon fiber composite plates proposed in this invention.

[0023] Figure 4 This is a partial cross-sectional view of the switching component of the milling device and method for carbon fiber composite plates proposed in this invention.

[0024] Figure 5 This is a schematic diagram of the adjustment component structure of a milling device and method for carbon fiber composite plates proposed in this invention;

[0025] Figure 6 This is a partial cross-sectional view of the adjustment component of the milling device and method for carbon fiber composite plates proposed in this invention. Figure 1 ;

[0026] Figure 7 This is a partial cross-sectional view of the adjustment component of the milling device and method for carbon fiber composite plates proposed in this invention. Figure 2

[0027] In the diagram: 1. Milling cutter assembly; 2. Drilling rig; 3. Rotating shaft; 4. Switching assembly; 41. Fixed disc; 42. Half sleeve; 43. Mounting edge; 44. Circular groove; 45. Mounting groove; 46. Movable groove; 47. Gear; 48. Movable block; 49. Gear ring; 410. First spring; 411. Cylinder; 412. Fixing strip; 413. Drilling and milling cutter; 414. Slot; 415. Positioning bolt; 416. Rack; 5. Milling cutter assembly; 51. Circular disc; 52. 53. Annular groove; 54. Control panel; 55. Guide port; 56. Fixing block; 57. Positioning rod; 58. Limiting ring; 59. Second spring; 50. Positioning block; 511. Positioning hole; 512. Sliding groove; 513. Sliding block; 514. Round shaft; 515. Cavity; 516. Positioning sleeve; 517. Milling cutter block; 518. Connecting shaft; 519. Fixing sleeve; 520. Movable port; 521. Threaded sleeve; 522. Fixing shaft; 523. Adjusting bolt; 524. Round block. Detailed Implementation

[0028] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0030] like Figures 1 to 7 The device and method for milling holes in carbon fiber composite panels shown include a milling cutter device 1, a drill 2 mounted on the upper part of the milling cutter device 1, a rotating shaft 3 mounted on the lower side of the drill 2, a switching assembly 4 mounted on the lower side of the rotating shaft 3, and a milling cutter assembly 5 mounted on the lower side of the switching assembly 4. The switching assembly 4 includes a fixed plate 41 fixedly mounted on the lower end of the rotating shaft 3, two sets of semi-sleeves 42 mounted on the lower end of the fixed plate 41, mounting edges 43 on both sides of the two sets of semi-sleeves 42, a circular groove 44 at the center of each set of semi-sleeves 42, mounting grooves 45 inside both sides of each set of semi-sleeves 42, and movable grooves 46 formed in each set of mounting grooves 45. Four sets of gears 47 are rotatably arranged. A movable block 48 is movably arranged inside the circular groove 44. Several sets of toothed rings 49 are fixedly arranged outside the movable block 48. A first spring 410 is fixedly arranged between the movable block 48 and the upper inner wall of the circular groove 44. A cylinder 411 is fixedly arranged inside the lower side of the two sets of semi-cylindrical sleeves 42. Two sets of fixing bars 412 are fixedly arranged inside the cylinder 411. A drilling cutter 413 is movably inserted inside the cylinder 411. A slot 414 is opened on both sides of the drilling cutter 413. A positioning bolt 415 is threadedly connected to the lower side of the two sets of semi-cylindrical sleeves 42 corresponding to the position of the drilling cutter 413. A rack 416 is movably arranged inside the two sets of movable grooves 46.

[0031] One of the two sets of semi-cylindrical sleeves 42 is fixedly installed with the fixed plate 41. The two sets of semi-cylindrical sleeves 42 are fixedly installed together along the edge 43 by fixing bolts. The circular groove 44 communicates with the mounting groove 45 and the movable groove 46. The gear 47 is adapted to the toothed ring 49 set on the outside of the movable block 48. The fixing strip 412 is engaged with the slot 414. The drilling cutter 413 is inserted into the interior of the movable groove 46. The drilling cutter 413 is inserted into the interior of the cylinder 411. The positioning bolt 415 passes through the semi-cylindrical sleeve 42 to fix the drilling cutter 413. The rack 416 is engaged with the gear 47.

[0032] When the slot 414 on the drilling cutter 413 is aligned with the fixing strip 412 and inserted into the interior of the cylinder 411, and contacts the movable block 48, the drilling cutter 413 can be fixed and installed by the positioning bolts 415 on both the front and rear sides. Then, the drilling machine 2 and the rotating shaft 3 drive the switching component 4 and the milling cutter assembly 5 to rotate and perform milling work. When countersunk machining is required, during installation, after inserting into the cylinder 411, the movable block 48 can be pushed upward to slide in the circular groove 44, while squeezing the first spring 410. The toothed ring 49 on the outside of the movable block 48 will push the gear 47 to rotate. The rotating gear 47 will drive the rack 416 to move the milling cutter assembly 5 downward, so that the distance between the milling cutter assembly 5 and the drilling cutter 413 meets the structural changes required when the drilling cutter 413 and the milling cutter assembly 5 are milling, which can quickly process the countersunk hole.

[0033] The milling cutter assembly 5 includes a circular disk 51 fixedly mounted at the lower end of two sets of racks 416. An annular groove 52 is formed on the outer side of the circular disk 51. A control disk 53 is rotatably mounted on the inner side of the annular groove 52. Four guide ports 54 are formed on the inner side of the control disk 53. A fixing block 55 is fixedly mounted on one side of the control disk 53. A positioning rod 56 is movably mounted on the inner side of the fixing block 55. A limit ring 57 is fixedly mounted on the outer side of the positioning rod 56. A second spring 58 is sleeved between the limit ring 57 and the fixing block 55. A positioning block 59 is fixedly mounted on one side of the circular disk 51 at the lower position of the fixing block 55. Two positioning holes 510 are formed on the inner side of the positioning block 59. Four sliding grooves 511 are formed inside the lower side of the circular disk 51. Sliding blocks 512 are slidably mounted on the inner side of each of the four sliding grooves 511.

[0034] The guide port 54 is inclined, the positioning rod 56 passes through the fixing block 55 to the inside of the positioning hole 510, and the inner side of the slide groove 511 is opened to communicate with the inside of the annular groove 52.

[0035] By pulling up the positioning rod 56, the limiting ring 57 squeezes the second spring 58, and the positioning rod 56 leaves the set of positioning holes 510 into which it was inserted. This causes the fixing block 55 and the control disk 53 to rotate in the annular groove 52. Then, the positioning rod 56 is inserted into another set of positioning holes 510. The four sets of guide ports 54 drive the four sets of round shafts 513 and sliding blocks 512 to slide in the slide groove 511, so that the four sets of milling cutter blocks 516 come together. This, combined with the displacement changes generated during the adjustment of the four sets of milling cutter blocks 516, satisfies the adjustment of two types of hole processing.

[0036] A round shaft 513 is fixedly installed on the upper end of the sliding block 512. A cavity 514 is provided inside the sliding block 512. A positioning sleeve 515 is fixedly installed on the upper inner wall of the cavity 514. A milling cutter block 516 is movably installed inside one side of the cavity 514. A connecting shaft 517 is fixedly installed inside the upper side of the milling cutter block 516. Two sets of fixed sleeves 518 are fixedly installed at one end of the milling cutter block 516 near the center. A movable opening 519 is provided inside the two sets of fixed sleeves 518. A threaded sleeve 520 is movably installed inside the two sets of fixed sleeves 518. Two sets of fixed shafts 521 are fixedly installed on the outer side of the threaded sleeve 520. An adjusting bolt 522 is threadedly connected inside the threaded sleeve 520. A round block 523 is fixedly installed on the upper side of the adjusting bolt 522.

[0037] The round shaft 513 passes through the upper side of the slide groove 511 to the inside of the guide opening 54. The positioning sleeve 515 is inclined. The connecting shaft 517 and the sliding block 512 are rotatably set. The fixed sleeve 518 is adapted to the size of the cavity 514 along the rotation trajectory of the connecting shaft 517. The fixed shaft 521 is set inside the movable opening 519. The round block 523 is rotatably set inside the positioning sleeve 515.

[0038] The adjustment bolts 522 in the four sets of sliding blocks 512 are rotated by the tool, and the threaded sleeve 520 with threaded connection drives the fixed shaft 521 to move upward, pushing the fixed sleeve 518 and the milling cutter block 516 to rotate along the connecting shaft 517. The fixed sleeve 518 moves into the cavity 514, thereby making the milling cutter block 516 tilted. In conjunction with the drilling cutter 413, the four sets of milling cutter blocks 516 rotate to open countersunk holes. The switching between the flat and tilted states of the four sets of milling cutter blocks 516 can simultaneously realize the processing of countersunk holes and improve the processing efficiency of different milling holes.

[0039] A method for using a milling device is also provided, for operating a milling device and method for a carbon fiber composite plate, including the following steps:

[0040] S1: After inserting the cylinder 411, push the movable block 48 upward to slide in the circular groove 44. The gear ring 49 will then drive the gear 47 to rotate, causing the drive rack 416 to drive the milling cutter assembly 5 to move downward. This drives the distance between the milling cutter assembly 5 and the drilling cutter 413 to meet the structural changes of the drilling cutter 413 and the milling cutter assembly 5 when milling.

[0041] S2: By controlling the rotation of the four sets of adjusting bolts 522, the fixed sleeve 518 and the milling cutter block 516 are pushed to rotate along the connecting shaft 517, so that the milling cutter block 516 becomes inclined, and in conjunction with the drilling cutter 413, the four sets of milling cutter blocks 516 are rotated to open the countersunk hole.

[0042] S3: By pulling up the positioning rod 56, the control disk 53 is rotated, and the four sets of guide ports 54 drive the four sets of round shafts 513 and sliding blocks 512 to slide in the slide groove 511, so that the four sets of milling cutter blocks 516 come together, and the displacement changes generated during the adjustment of the four sets of milling cutter blocks 516 are coordinated.

[0043] Working principle: In use, the slot 414 on the drilling cutter 413 is aligned with the fixing strip 412 and inserted into the inside of the cylinder 411. When it contacts the movable block 48, the drilling cutter 413 can be fixed and installed by the positioning bolts 415 on both the front and rear sides. Then, the drilling machine 2 and the rotating shaft 3 drive the switching component 4 and the milling cutter component 5 to rotate and perform milling work. When countersunk machining is required, during installation, after inserting into the cylinder 411, the movable block 48 can be pushed upward to slide in the circular groove 44, while simultaneously pressing the first... A spring 410, and the toothed ring 49 on the outer side of the movable block 48, will drive the gear 47 to rotate. The rotating gear 47 will simultaneously drive the rack 416 to move the milling cutter assembly 5 downward, so that the distance between the milling cutter assembly 5 and the drilling cutter 413 is adjusted to meet the structural changes of the drilling cutter 413 and the milling cutter assembly 5 during milling, enabling rapid processing of countersunk holes; in addition, the adjustment bolts 522 in the four sets of sliding blocks 512 are rotated by the tool control, and the threaded connection The threaded sleeve 520 drives the fixed shaft 521 to move upward, pushing the fixed sleeve 518 and the milling cutter block 516 to rotate along the connecting shaft 517. The fixed sleeve 518 moves into the cavity 514, thereby causing the milling cutter block 516 to become inclined. This, in conjunction with the drilling cutter 413, drives the four sets of milling cutter blocks 516 to rotate and open countersunk holes. The switching between the flat and inclined states of the four sets of milling cutter blocks 516 simultaneously realizes the processing of countersunk holes and improves the processing efficiency of different milling holes. Secondly, by pulling upward... Positioning rod 56 is lifted, and the second spring 58 is squeezed by limiting ring 57. Positioning rod 56 leaves the set of positioning holes 510, driving fixed block 55 and control disk 53 to rotate in annular groove 52. Positioning rod 56 is then inserted into another set of positioning holes 510. Four sets of guide ports 54 drive four sets of round shafts 513 and sliding blocks 512 to slide in slide groove 511, so that four sets of milling cutter blocks 516 come together. The displacement changes generated during the adjustment of the four sets of milling cutter blocks 516 meet the adjustment of two types of hole processing.

[0044] The milling cutter device 1, drilling machine 2, rotating shaft 3, drilling and milling cutter 413, and milling cutter block 516 in this invention are common knowledge in this technical field. Their structure, connection method and usage method are known technologies. Moreover, the device uses existing sensor technology for tensile testing. The model is selected according to the actual use, so it will not be explained in detail.

[0045] In this invention, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms in this invention according to the specific circumstances.

[0046] In the description of this specification, the use of terms such as "one embodiment," "some embodiments," or "specific embodiment" indicates that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A milling device for carbon fiber composite plates, comprising a milling cutter device (1), characterized in that: A drill (2) is mounted on the upper part of the milling cutter device (1). A rotating shaft (3) is mounted on the lower side of the drill (2). A switching assembly (4) is mounted on the lower side of the rotating shaft (3). A milling cutter assembly (5) is mounted on the lower side of the switching assembly (4). The switching assembly (4) includes a fixed plate (41) fixedly mounted on the lower end of the rotating shaft (3). Two sets of semi-sleeves (42) are mounted on the lower end of the fixed plate (41). Mounting edges (43) are provided on both sides of the two sets of semi-sleeves (42). A circular groove (44) is provided at the center of the two sets of semi-sleeves (42). Mounting grooves (45) are provided inside both sides of the two sets of semi-sleeves (42). Movable grooves (46) are opened in the two sets of mounting grooves (45). Four sets of gears (46) are rotatably mounted on the inner side of the two sets of mounting grooves (45). 7) A movable block (48) is movably provided on the inner side of the circular groove (44), and several sets of toothed rings (49) are fixedly provided on the outer side of the movable block (48). A first spring (410) is fixedly provided between the movable block (48) and the upper inner wall of the circular groove (44). A cylinder (411) is fixedly provided on the lower inner side of the two sets of semi-cylindrical sleeves (42). Two sets of fixing strips (412) are fixedly provided on the inner side of the cylinder (411). A drilling cutter (413) is movably inserted on the inner side of the cylinder (411). A slot (414) is provided on both sides of the drilling cutter (413). A positioning bolt (415) is threadedly connected to the lower inner side of the two sets of semi-cylindrical sleeves (42) corresponding to the position of the drilling cutter (413). A rack (416) is movably provided on the inner side of the two sets of movable grooves (46). The milling cutter assembly (5) includes a circular disk (51) fixedly disposed at the lower end of two sets of racks (416). The circular groove (44) communicates with the mounting groove (45) and the movable groove (46) inside, and the gear (47) is adapted to the toothed ring (49) provided on the outside of the movable block (48); The rack (416) is meshed with the gear (47).

2. The milling device for carbon fiber composite plates according to claim 1, characterized in that: An annular groove (52) is provided on the outer side of the circular disk (51). A control disk (53) is rotatably provided on the inner side of the annular groove (52). Four sets of guide ports (54) are provided on the inner side of the control disk (53). A fixing block (55) is fixedly provided on one side of the control disk (53). A positioning rod (56) is movably provided on the inner side of the fixing block (55). A limit ring (57) is fixedly provided on the outer side of the positioning rod (56). A second spring (58) is sleeved between the limit ring (57) on the outer side of the positioning rod (56) and the fixing block (55). A positioning block (59) is fixedly provided on one side of the circular disk (51) at the lower position of the fixing block (55). Two sets of positioning holes (510) are provided on the inner side of the positioning block (59). Four sets of sliding grooves (511) are provided inside the lower side of the circular disk (51). Sliding blocks (512) are slidably provided on the inner side of each of the four sets of sliding grooves (511).

3. The milling device for carbon fiber composite plates according to claim 2, characterized in that: A round shaft (513) is fixedly installed on the upper end of the sliding block (512). A cavity (514) is provided inside the sliding block (512). A positioning sleeve (515) is fixedly installed on the upper inner wall of the cavity (514). A milling cutter block (516) is movably installed inside one side of the cavity (514). A connecting shaft (517) is fixedly installed inside the upper side of the milling cutter block (516). Two sets of fixed sleeves (518) are fixedly installed at one end of the milling cutter block (516) near the center position. A movable opening (519) is provided inside the two sets of fixed sleeves (518). A threaded sleeve (520) is movably installed inside the two sets of fixed sleeves (518). Two sets of fixed shafts (521) are fixedly installed on the outer side of the threaded sleeve (520). An adjusting bolt (522) is threadedly connected to the inner side of the threaded sleeve (520). A round block (523) is fixedly installed on the upper side of the adjusting bolt (522).

4. The milling device for carbon fiber composite plates according to claim 1, characterized in that: One of the two sets of semi-sleeves (42) is fixedly installed with the fixed plate (41), and the two sets of semi-sleeves (42) are fixedly installed together along the edge (43) by means of fixing bolts.

5. The milling device for carbon fiber composite plates according to claim 1, characterized in that: The fixing strip (412) is engaged with the slot (414), the drilling cutter (413) is inserted into the inside of the cylinder (411), and the positioning bolt (415) passes through the half sleeve (42) to fix the drilling cutter (413).

6. The milling device for carbon fiber composite plates according to claim 2, characterized in that: The guide port (54) is inclined, the positioning rod (56) passes through the fixing block (55) to the inside of the positioning hole (510), and the inner side of the slide groove (511) communicates with the inside of the annular groove (52).

7. The milling device for carbon fiber composite plates according to claim 3, characterized in that: The circular shaft (513) passes through the upper side of the slide groove (511) to the inside of the guide port (54), the positioning sleeve (515) is inclined, and the connecting shaft (517) and the sliding block (512) are rotatably arranged.

8. The milling device for carbon fiber composite plates according to claim 3, characterized in that: The fixed sleeve (518) is adapted to the size of the cavity (514) along the rotation trajectory of the connecting shaft (517), the fixed shaft (521) is located inside the movable opening (519), and the round block (523) is rotatably located inside the positioning sleeve (515).

9. A method of using a milling device, for operating a carbon fiber composite plate milling device according to any one of claims 3-8, characterized in that, Includes the following steps: S1: After inserting the cylinder (411), push the movable block (48) upward to slide in the circular groove (44), and the gear ring (49) will push the gear (47) to rotate, so that the drive rack (416) drives the milling cutter assembly (5) to move downward, driving the distance between the milling cutter assembly (5) and the drilling cutter (413) to meet the structural changes when the drilling cutter (413) and the milling cutter assembly (5) are milling holes; S2: By controlling the rotation of the four sets of adjusting bolts (522), the fixed sleeve (518) and the milling cutter block (516) are pushed to rotate along the connecting shaft (517), so that the milling cutter block (516) becomes tilted. S3: By pulling up the positioning rod (56), the control disk (53) is rotated, and the four sets of guide ports (54) drive the four sets of round shafts (513) and sliding blocks (512) to slide in the slide groove (511), so that the four sets of milling cutter blocks (516) come together.

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