Carbon fiber composite board hole milling device and method

Abstract

The invention belongs to the technical field of hole milling devices, and particularly discloses a carbon fiber composite board hole milling device and method.The carbon fiber composite board hole milling device comprises a milling cutter device, a drilling machine is arranged on the milling cutter device, a rotating shaft is arranged on the lower side of the drilling machine, a switching assembly is installed on the lower side of the rotating shaft, and a milling cutter assembly is arranged on the lower side of the switching assembly; the switching assembly comprises a fixed disc fixedly arranged at the lower end of the rotating shaft, two sets of half sleeves are arranged at the lower end of the fixed disc, mounting edges are arranged on the two sides of the two sets of half sleeves, circular grooves are formed in the centers of the two sets of half sleeves, and mounting grooves are formed in the two sides of the two sets of half sleeves; and movable grooves are formed in the two sets of mounting grooves correspondingly, and four sets of gears are rotationally arranged on the inner sides of the two sets of mounting grooves correspondingly. Through overall cooperative use, the structure change during hole milling of the drilling milling cutter and the milling cutter assembly is met, and machining of counterbores and countersinks is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of hole milling devices, and specifically discloses a carbon fiber composite plate hole milling device and method. Background Art

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

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a carbon fiber composite plate milling device and method.

[0004] In order to achieve the above purpose, the present invention provides a carbon fiber composite plate milling device and method, including a milling cutter device, a drill is provided on the milling cutter device, a rotating shaft is provided on the lower side of the drill, a switching component is arranged on the lower side of the rotating shaft, a milling cutter component is provided on the lower side of the switching component, the switching component includes a fixed plate fixedly provided at the lower end of the rotating shaft, two groups of half-cylinder sleeves are provided at the lower end of the fixed plate, both sides of the two groups of half-cylinder sleeves are provided with mounting edges, the center positions of the two groups of half-cylinder sleeves are provided with circular grooves, both sides of the two groups of half-cylinder sleeves are provided with mounting grooves, and both groups of mounting grooves are provided with openings. There is a movable groove, and four groups of gears are rotatably arranged on the inner sides of the two groups of mounting grooves. A movable block is movably arranged on the inner side of the circular groove, and several groups of gear 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 groove. A cylinder is fixedly arranged inside the lower side of the two groups of half-cylinder sleeves, and two groups of fixing bars are fixedly arranged on the inner side of the cylinder. A drilling cutter is movably inserted into the inner side of the cylinder, and slots are provided on both sides of the drilling cutter. Positioning bolts are threadedly connected to the positions of the drilling cutters inside the lower side of the two groups of half-cylinder sleeves, and racks are movably arranged on the inner sides of the two groups of movable grooves.

[0005] In the above technical solution, preferably, the milling cutter assembly includes a circular disk fixedly arranged at the lower ends of two groups of racks, an annular groove is provided on the outer side of the circular disk, a control disk is rotatably provided on the inner side of the annular groove, four groups of guide openings are provided on the inner side of the control disk, a fixed block is fixedly provided on one side of the control disk, a positioning rod is movably provided on the inner side of the fixed block, a limiting ring is fixedly provided on the outer side of the positioning rod, a second spring is sleeved between the limiting ring on the outer side of the positioning rod and the fixed block, a positioning block is fixedly provided on one side of the circular disk at a position corresponding to the lower side of the fixed block, two groups of positioning holes are provided on the inner side of the positioning block, four groups of sliding grooves are provided inside the lower side of the circular disk, and sliding blocks are slidably provided on the inner sides of the four groups of sliding grooves.

[0006] In the above technical solution, preferably, a circular shaft is fixedly provided on the upper end of the sliding block, a cavity is provided on the inner side of the sliding block, a positioning sleeve is fixedly provided on the inner wall of the upper side 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 groups of fixed sleeves are fixedly provided on one end of the milling cutter block close to the center of the circle, movable openings are provided on the inner sides of the two groups of fixed sleeves, threaded sleeves are movably provided on the inner sides of the two groups of fixed sleeves, two groups of fixed 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 groups of half-cylinder sleeves is fixed to the fixed plate, and the two groups of half-cylinder sleeves are fixed together along the edge by means of fixing bolts, the circular groove is communicated with the inside of the installation groove and the movable groove, and the gear is adapted to the gear ring arranged on the outside of the movable block.

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

[0009] In the above technical solution, preferably, the guide opening is arranged at an angle, the positioning rod passes through the fixing block to the inside of the positioning hole, and the inner side of the sliding groove is opened to communicate 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 port, the positioning sleeve is tilted, and the connecting shaft and the sliding block are rotatably arranged.

[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 arranged inside the movable opening, and the round block is rotatably arranged inside the positioning sleeve.

[0012] A method for using a milling device is also provided, which is used to operate a carbon fiber composite plate milling device and method, comprising the following steps:

[0013] S1: After the cylinder is inserted, the movable block is pushed upward to slide in the circular groove. The gear ring drives the gear to rotate, so that the driving rack drives the milling cutter assembly to move downward, driving the distance between the milling cutter assembly and the drilling cutter to meet the structural changes when the drilling cutter and the milling cutter assembly are milling holes;

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

[0015] S3: By pulling up the positioning rod, the control disk is driven to rotate, and the four sets of guide ports drive the four sets of circular shafts and sliding blocks to slide in the slide grooves, so that the four sets of milling cutter blocks are brought closer, and the displacement changes are produced when the four sets of milling cutter blocks are adjusted.

[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 bar and insert it into 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, and then the switching assembly and the milling cutter assembly can be driven by the drilling rig and the rotating shaft to rotate and mill the holes. When countersinking is required, during installation, after inserting the cylinder, push the movable block upward to slide in the circular groove, and at the same time squeeze the first spring, and the gear ring on the outside of the movable block will push the gear to rotate. The rotating gear also drives the rack to drive the milling cutter assembly downward, so that the milling cutter assembly moves downward, so that the distance between the milling cutter assembly and the drilling cutter meets the structural changes of the drilling cutter and the milling cutter assembly when milling holes, and the countersunk holes can be processed quickly.

[0018] 2. The adjusting bolts in the four sets of sliding blocks are controlled to rotate by tools, and the threaded sleeve of the threaded connection drives the fixed axis to move upward, pushing the fixed sleeve and the milling cutter block to rotate along the connecting axis. The fixed sleeve moves toward the inside of the cavity, thereby making the milling cutter block tilted. The four sets of milling cutter blocks are driven to rotate and open countersunk holes in cooperation with the drilling cutter. The four sets of milling cutter blocks are switched between the plane and the tilted state, and the processing of countersunk holes and countersunk holes is realized at the same time, thereby improving the processing efficiency of different milling holes.

[0019] 3. By pulling up the positioning rod, the second spring is squeezed by the limiting ring, and the positioning rod leaves the inserted set of positioning holes, driving the fixed block and the control disk 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 circular shafts and sliding blocks to slide in the slide groove, so that the four sets of milling cutter blocks are brought closer. The displacement changes produced when the four sets of milling cutter blocks are adjusted can meet the adjustment of the two hole processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a carbon fiber composite plate milling device and method proposed by the present invention;

[0021] Figure 2 This is a partial structural diagram of a carbon fiber composite plate milling device and method proposed by the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of a switching component of a carbon fiber composite plate milling device and method proposed in the present invention;

[0023] Figure 4 This is a schematic diagram of a partial cross-section structure of a switching component of a carbon fiber composite plate milling device and method proposed in the present invention;

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

[0025] Figure 6 A partial cross-sectional diagram of the adjustment component of a carbon fiber composite plate milling device and method proposed by the present invention Figure 1 ;

[0026] Figure 7 A partial cross-sectional diagram of the adjustment component of a carbon fiber composite plate milling device and method proposed by the present invention Figure 2

[0027] In the figure: 1. milling cutter device; 2. drilling machine; 3. rotating shaft; 4. switching assembly; 41. fixed disk; 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 bar; 413. drilling milling cutter; 414. slot; 415. positioning bolt; 416. rack; 5. milling cutter assembly; 51. circular disk; 52. Annular groove; 53, control panel; 54, guide port; 55, fixed block; 56, positioning rod; 57, limiting ring; 58, second spring; 59, positioning block; 510, positioning hole; 511, slide groove; 512, sliding block; 513, round shaft; 514, cavity; 515, positioning sleeve; 516, milling cutter block; 517, connecting shaft; 518, fixed sleeve; 519, movable port; 520, threaded sleeve; 521, fixed shaft; 522, adjusting bolt; 523, round block. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] like Figures 1 to 7 The device and method for milling a hole in a carbon fiber composite plate shown in the figure include a milling cutter device 1, a drill 2 is provided on the top of the milling cutter device 1, a rotating shaft 3 is provided on the lower side of the drill 2, a switching assembly 4 is arranged on the lower side of the rotating shaft 3, a milling cutter assembly 5 is provided on the lower side of the switching assembly 4, and the switching assembly 4 includes a fixed disk 41 fixedly provided at the lower end of the rotating shaft 3, two groups of half-cylinder sleeves 42 are provided at the lower end of the fixed disk 41, both sides of the two groups of half-cylinder sleeves 42 are provided with mounting edges 43, the center positions of the two groups of half-cylinder sleeves 42 are provided with circular grooves 44, the interiors of the two groups of half-cylinder sleeves 42 are provided with mounting grooves 45 on both sides, and movable grooves 46 are opened in the two groups of mounting grooves 45. The inner sides of the two groups of mounting grooves 45 are Four sets of gears 47 are rotatably provided, a movable block 48 is movably provided on the inner side of the circular groove 44, and several sets of gear 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 inside the lower side of the two sets of half-cylinder sleeves 42, two sets of fixing bars 412 are fixedly provided inside the cylinder 411, a drilling milling cutter 413 is movably inserted into the inner side of the cylinder 411, and a card slot 414 is provided on both sides of the drilling milling cutter 413, and the positions of the drilling milling cutter 413 corresponding to the lower side of the two sets of half-cylinder sleeves 42 are threadedly connected with positioning bolts 415, and racks 416 are movably provided on the inner sides of the two sets of movable grooves 46.

[0031] One of the two groups of half-cylinder sleeves 42 is fixed to the fixed plate 41, and the two groups of half-cylinder sleeves 42 are fixed together along the edge 43 by fixing bolts. The circular groove 44 is communicated with the interior of the installation groove 45 and the movable groove 46. The gear 47 is adapted to the gear ring 49 provided on the outside of the movable block 48. The fixing bar 412 is engaged with the card slot 414. The drilling milling cutter 413 is inserted into the interior of the movable groove 46. The drilling milling cutter 413 is inserted into the interior of the cylinder 411. The positioning bolt 415 passes through the half-cylinder sleeve 42 to fix the drilling milling cutter 413, and the rack 416 is engaged with the gear 47.

[0032] The slot 414 on the drilling milling cutter 413 corresponds to the fixing bar 412 and is inserted into the interior of the cylinder 411. When the movable block 48 is in contact, the drilling milling cutter 413 can be fixed and installed by the positioning bolts 415 on the front and rear sides, and then the switching assembly 4 and the milling cutter assembly 5 are driven by the drilling rig 2 and the rotating shaft 3 to rotate and mill the hole. When countersinking is required, during installation, after inserting the cylinder 411, the movable block 48 can be pushed upward to slide in the circular groove 44, squeezing the first spring 410 at the same time, and the gear ring 49 on the outside of the movable block 48 will push the gear 47 to rotate. The rotating gear 47 simultaneously drives the rack 416 to drive the milling cutter assembly 5 to move downward, so that the milling cutter assembly 5 moves downward, so that the distance between the milling cutter assembly 5 and the drilling milling cutter 413 meets the structural changes when the drilling milling cutter 413 and the milling cutter assembly 5 mill holes, and the countersunk holes can be processed quickly.

[0033] The milling cutter assembly 5 includes a circular disk 51 fixedly arranged at the lower end of the two groups of racks 416, 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, and four groups of guide openings 54 are provided on the inner side of the control disk 53, a fixed 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 fixed block 55, a limiting ring 57 is fixedly provided on the outer side of the positioning rod 56, and a second spring 58 is sleeved between the limiting ring 57 on the outer side of the positioning rod 56 and the fixed block 55, a positioning block 59 is fixedly provided on one side of the circular disk 51 at a position corresponding to the lower side of the fixed block 55, two groups of positioning holes 510 are provided on the inner side of the positioning block 59, four groups of sliding grooves 511 are provided inside the lower side of the circular disk 51, and sliding blocks 512 are slidably provided on the inner sides of the four groups of sliding grooves 511.

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

[0035] By pulling up the positioning rod 56, the second spring 58 is squeezed by the limiting ring 57, and the positioning rod 56 leaves the inserted set of positioning holes 510, driving the fixed block 55 and the control disk 53 to rotate in the annular groove 52, and then the positioning rod 56 is inserted into another set of positioning holes 510. The four sets of guide openings 54 drive the four sets of circular shafts 513 and the sliding blocks 512 to slide in the slide groove 511, so that the four sets of milling cutter blocks 516 are brought together, and the displacement changes generated when the four sets of milling cutter blocks 516 are adjusted meet the adjustment of the two types of hole processing.

[0036] A circular shaft 513 is fixedly provided on the upper end of the sliding block 512, a cavity 514 is provided on the inner side of the sliding block 512, a positioning sleeve 515 is fixedly provided on the inner wall of the upper side of the cavity 514, a milling cutter block 516 is movably provided inside one side of the cavity 514, a connecting shaft 517 is fixedly provided on the upper side of the milling cutter block 516, two groups of fixed sleeves 518 are fixedly provided on one end of the milling cutter block 516 toward the center of the circle, and movable openings 519 are provided on the inner sides of the two groups of fixed sleeves 518, and threaded sleeves 520 are movably provided on the inner sides of the two groups of fixed sleeves 518, two groups of fixed shafts 521 are fixedly provided on the outer side of the threaded sleeves 520, an adjusting bolt 522 is threadedly connected to the inner side of the threaded sleeve 520, and a round block 523 is fixedly provided 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 set at an angle, 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 on the inside of the movable opening 519, and the round block 523 is rotatably set inside the positioning sleeve 515.

[0038] The adjusting bolts 522 in the four sets of sliding blocks 512 are controlled to rotate by tools, and the threaded sleeve 520 with thread 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, and the fixed sleeve 518 moves toward the inside of the cavity 514, so that the milling cutter block 516 becomes an inclined state, and cooperates with the drilling milling cutter 413 to drive the four sets of milling cutter blocks 516 to rotate and open countersunk holes. The four sets of milling cutter blocks 516 are switched between the plane and the inclined state, and the processing of countersunk holes and countersunk holes is realized at the same time, thereby improving the processing efficiency of different milling holes.

[0039] A method for using a milling device is also provided, which is used to operate a carbon fiber composite plate milling device and method, comprising the following steps:

[0040] S1: After the cylinder 411 is inserted, the movable block 48 is pushed upward to slide in the circular groove 44, and the gear ring 49 drives 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;

[0041] S2: By controlling the rotation of the four sets of adjusting bolts 522, the fixing 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, and cooperates with the drilling cutter 413 to drive the four sets of milling cutter blocks 516 to rotate and open the countersink.

[0042] S3: By pulling up the positioning rod 56, the control disk 53 is driven to rotate, and the four groups of guide openings 54 drive the four groups of circular shafts 513 and the sliding blocks 512 to slide in the slide grooves 511, so that the four groups of milling cutter blocks 516 are brought closer, and the displacement changes produced when the four groups of milling cutter blocks 516 are adjusted are coordinated.

[0043] Working principle: When in use, the slot 414 on the drilling milling cutter 413 corresponds to the fixing strip 412 and is inserted into the interior of the cylinder 411. When the movable block 48 is in contact, the drilling milling cutter 413 can be fixed and installed by the positioning bolts 415 on the front and rear sides. Then, the switching assembly 4 and the milling cutter assembly 5 are driven by the drilling machine 2 and the rotating shaft 3 to perform the rotating milling work. When countersinking is required, after inserting the cylinder 411, the movable block 48 can be pushed upward to slide in the circular groove 44, and at the same time, the first A spring 410, and the toothed ring 49 on the outside of the movable block 48 will push the gear 47 to rotate, and the rotating gear 47 will drive the rack 416 to drive the milling cutter assembly 5 to move downward, so that the milling cutter assembly 5 moves downward, and the distance between the milling cutter assembly 5 and the drilling cutter 413 is sufficient to meet the structural changes when the drilling cutter 413 and the milling cutter assembly 5 mill the hole, so that the countersunk hole can be processed quickly; in addition, the adjusting bolts 522 in the four sets of sliding blocks 512 are controlled to rotate by the tool, 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, and the fixed sleeve 518 moves toward the inside of the cavity 514, so that the milling cutter block 516 becomes tilted, and cooperates with the drilling milling cutter 413 to drive the four sets of milling cutter blocks 516 to rotate and open the countersunk holes. The four sets of milling cutter blocks 516 are switched between the plane and the tilted state, and the processing of the countersunk holes and the countersunk holes is realized at the same time, thereby improving the processing efficiency of different milling holes. Secondly, by pulling upward The positioning rod 56 is raised, and the second spring 58 is squeezed by the limiting ring 57. The positioning rod 56 leaves the inserted set of positioning holes 510, driving the fixed 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 openings 54 drive the four sets of circular shafts 513 and the sliding blocks 512 to slide in the slide groove 511, so that the four sets of milling cutter blocks 516 are brought closer. The displacement changes generated when the four sets of milling cutter blocks 516 are adjusted meet the adjustment of the two hole processing.

[0044] The milling cutter device 1, drill rig 2, rotating shaft 3, drilling milling cutter 413, and milling cutter block 516 structural components in the present invention are common knowledge in this technical field. Their structure, mutual connection method and usage method are already well-known technologies, and the device adopts the existing sensor technology field to perform tensile testing. Its model is selected according to actual use, so it will not be explained in detail.

[0045] In the present invention, the terms "installed," "connected," "connected," and "fixed" should be understood broadly. For example, "connected" can mean fixed, detachable, or integral; it can mean directly connected or indirectly connected through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0046] Throughout this specification, the use of terms such as "one embodiment," "some embodiments," or "specific embodiments" means that the specific features, structures, materials, or characteristics described in connection with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these 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 any one or more embodiments or examples.

[0047] The above shows and describes 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 above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A carbon fiber composite plate milling device, comprising a milling cutter device (1), characterized in that: The milling cutter device (1) is provided with a drill (2) on the top, a rotating shaft (3) is provided on the bottom of the drill (2), a switching assembly (4) is arranged on the bottom of the rotating shaft (3), a milling cutter assembly (5) is provided on the bottom of the switching assembly (4), the switching assembly (4) comprises a fixed disk (41) fixedly provided at the bottom of the rotating shaft (3), two groups of half-cylinder sleeves (42) are provided at the bottom of the fixed disk (41), both sides of the two groups of half-cylinder sleeves (42) are provided with mounting edges (43), the center positions of the two groups of half-cylinder sleeves (42) are provided with circular grooves (44), both sides of the two groups of half-cylinder sleeves (42) are provided with mounting grooves (45), the two groups of mounting grooves (45) are provided with movable grooves (46), and the inner sides of the two groups of mounting grooves (45) are provided with four groups of gears (46) for rotation. 7), a movable block (48) is movably provided on the inner side of the circular groove (44), and a plurality of groups of toothed rings (49) are fixedly provided on the outer side of the movable block (48), and a first spring (410) is fixedly provided between the movable block (48) and the inner wall of the upper side of the circular groove (44), and a cylinder (411) is fixedly provided inside the lower side of the two groups of half-cylinder sleeves (42), and two groups of fixing bars (412) are fixedly provided inside the cylinder (411), and a drilling cutter (413) is movably inserted into the inner side of the cylinder (411), and a clamping groove (414) is provided on both sides of the drilling cutter (413), and a positioning bolt (415) is threadedly connected to the position of the drilling cutter (413) inside the lower side of the two groups of half-cylinder sleeves (42), and a rack (416) is movably provided on the inner side of the two groups of movable grooves (46).

2. The carbon fiber composite plate milling device according to claim 1, characterized in that: The milling cutter assembly (5) comprises a circular disk (51) fixedly arranged at the lower end of two groups of racks (416), 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 groups of guide openings (54) are provided on the inner side of the control disk (53), a fixed 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), and the outer side of the positioning rod (56) is provided with a plurality of guide openings (54). A limiting ring (57) is fixedly provided, and a second spring (58) is sleeved between the limiting ring (57) outside the positioning rod (56) and the fixed block (55). A positioning block (59) is fixedly provided on one side of the circular disk (51) at a position corresponding to the lower side of the fixed block (55). Two groups of positioning holes (510) are provided on the inner side of the positioning block (59). Four groups of sliding grooves (511) are provided inside the lower side of the circular disk (51), and sliding blocks (512) are slidably provided on the inner sides of the four groups of sliding grooves (511).

3. The carbon fiber composite plate milling device according to claim 2, characterized in that: A circular shaft (513) is fixedly provided at the upper end of the sliding block (512), a cavity (514) is provided inside the sliding block (512), a positioning sleeve (515) is fixedly provided on the inner wall of the upper side of the cavity (514), a milling cutter block (516) is movably provided inside one side of the cavity (514), a connecting shaft (517) is fixedly provided inside the upper side of the milling cutter block (516), two groups of fixed sleeves (518) are fixedly provided at one end of the milling cutter block (516) close to the center of the circle, the inner sides of the two groups of fixed sleeves (518) are both provided with movable openings (519), threaded sleeves (520) are movably provided inside the two groups of fixed sleeves (518), two groups of fixed shafts (521) are fixedly provided outside the threaded sleeves (520), the inner sides of the threaded sleeves (520) are threadedly connected to adjusting bolts (522), and a circular block (523) is fixedly provided on the upper side of the adjusting bolt (522).

4. The carbon fiber composite plate milling device according to claim 1, characterized in that: One of the two groups of half-cylinder sleeves (42) is fixedly arranged on the fixed plate (41), and the two groups of half-cylinder sleeves (42) are fixedly installed together along the edge (43) by means of fixing bolts. The circular groove (44) is communicated with the interior of the installation groove (45) and the movable groove (46), and the gear (47) is adapted to the gear ring (49) arranged on the outer side of the movable block (48).

5. The carbon fiber composite plate milling device according to claim 1, characterized in that: The fixing bar (412) is engaged with the slot (414), the drilling cutter (413) is inserted into the movable slot (46), the drilling cutter (413) is inserted into the cylinder (411), the positioning bolt (415) passes through the half sleeve (42) to fix the drilling cutter (413), and the rack (416) is engaged with the gear (47).

6. The carbon fiber composite plate milling device according to claim 2, characterized in that: The guide opening (54) is arranged at an angle, the positioning rod (56) passes through the fixing block (55) to the inside of the positioning hole (510), and the inner side of the sliding groove (511) is opened to communicate with the inside of the annular groove (52).

7. The carbon fiber composite plate milling device 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 opening (54), the positioning sleeve (515) is tilted, and the connecting shaft (517) and the sliding block (512) are rotatably arranged.

8. The carbon fiber composite plate milling device 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 arranged inside the movable opening (519), and the round block (523) is rotatably arranged inside the positioning sleeve (515).

9. A method for using a milling device, used to operate the carbon fiber composite plate milling device and method according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: After the cylinder (411) is inserted, the movable block (48) is pushed upward to slide in the circular groove (44), and the gear ring (49) drives the gear (47) to rotate, so that the driving rack (416) drives the milling cutter assembly (5) to move downward, and the distance between the driving milling cutter assembly (5) and the drilling cutter (413) is adjusted 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 fixing 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, and cooperates with the drilling cutter (413) to drive the four sets of milling cutter blocks (516) to rotate and open the countersunk holes; S3: By pulling up the positioning rod (56), the control plate (53) is driven to rotate, and the four groups of guide openings (54) drive the four groups of circular shafts (513) and the sliding blocks (512) to slide in the slide groove (511), so that the four groups of milling cutter blocks (516) are brought closer, and the displacement changes are generated when the four groups of milling cutter blocks (516) are adjusted.

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