High-precision adjusting device for numerical control universal milling head

Abstract

The invention discloses a high-precision adjusting device for a numerical control universal milling head, and relates to the technical field of numerical control milling machines. The device comprises a main body frame and a swing frame, the main body frame comprises a mounting frame arranged on the main body frame, the mounting frame is mounted on a moving arm of a milling machine, and the swing frame is mounted on the mounting frame; the clamping mechanism comprises a plurality of milling heads installed on the swing frame and further comprises two semi-ring clamping jaws matched with the single semi-ring clamping jaw, and each milling head is provided with a vibration sensor. The rotating mechanism is driven to move through the moving mechanism, then the milling head is driven to revolve, a new milling head moves to the position below the semi-ring clamping jaw, at the moment, the device is driven to reset through reverse rotation driven by the outside, and therefore after the semi-ring clamping jaw gets close to the semi-ring clamping jaw again downwards, the milling head is driven to revolve. And the two semi-ring clamping jaws are driven to limit the milling head under the action of the moving mechanism, so that the purposes of automatically replacing the milling head and improving the working efficiency of the milling machine are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of numerically controlled milling machines, and in particular to a high-precision adjustment device for a numerically controlled universal milling head. Background Art

[0002] At present, with the development of industry, CNC machine tools are extremely important for the production of parts. The use of CNC machine tools has greatly improved the processing accuracy of parts, and at the same time simplified the operation steps of the machine tools, making the efficiency of parts production higher and higher. Different machine tools can realize different parts processing, which makes it easier for people to choose the process requirements of parts.

[0003] However, when a CNC milling machine is used to process a slide groove on a part, the milling head on the milling machine will be damaged after working for a long time. After the milling head is damaged, it is necessary to manually stop the operation of the milling machine, remove the milling head on the milling machine, replace it with a new milling head, and then restart the milling machine for processing. This process is relatively cumbersome, affects the processing efficiency of the parts, and wastes manpower. Although multi-axis milling machines are currently available, they cannot meet the needs of multi-angle milling operations and have limitations in use.

[0004] Based on this, the present invention designs a high-precision adjustment device for a CNC universal milling head to solve the above problems. Summary of the Invention

[0005] The purpose of the embodiments of the present invention is to provide a high-precision adjustment device for a CNC universal milling head, aiming to solve the technical problems existing in the prior art mentioned in the background technology.

[0006] The embodiment of the present invention is implemented as follows: a high-precision adjustment device for a CNC universal milling head, the device comprising:

[0007] Main frame: including a mounting frame provided on the main frame, the mounting frame being mounted on the moving arm of the milling machine, and a swing frame being mounted on the mounting frame;

[0008] Clamping mechanism: includes multiple milling heads mounted on a swing frame, and also includes two half-ring clamping claws that match a single milling head. Each milling head is provided with a vibration sensor;

[0009] Moving mechanism: used to drive the half-ring clamping claw to disengage from the milling head;

[0010] Telescopic mechanism: used to drive the milling head to rotate;

[0011] Rotating mechanism: used to drive the milling head to switch positions;

[0012] Adjustment mechanism: used to drive the milling head to adjust the angle.

[0013] Furthermore, the moving mechanism includes a moving plate slidably connected to the swing frame, the surface of the moving plate is rotatably connected to a linkage cylinder, the inner wall of the linkage cylinder is fixedly installed with a moving column head, and also includes a rotating cylinder installed on the swing frame, the rotating cylinder is provided with an arc groove matching the moving column head, the surface of the rotating cylinder is fixedly installed with a linkage round block, the linkage round block is provided with a telecentric groove, the surface of each semi-ring clamping claw is fixedly installed with a sliding groove rod matching the telecentric groove, each semi-ring clamping claw is slidably installed on the surface of the connecting plate, and each semi-ring clamping claw is connected to the connecting plate through a compression spring.

[0014] Furthermore, the telescopic mechanism includes a telescopic rod fixedly connected to the surface of the connecting plate, a rotating cylinder and a linkage round block are rotatably installed on the surface of the telescopic rod, the telescopic rod is fixedly connected to the surface of the connecting plate, a telescopic spring is fixedly installed on the surface of the telescopic rod, the telescopic rod is slidably connected to the inner wall of the transmission slide, and the transmission slide is rotatably connected to the swing frame.

[0015] The transmission gear of said sliding panel also is provided with an interlocking gear and a interlocking gear of said sliding panel and is connected with the interlocking gear of said sliding panel to prevent the interlocking gear from being scratched and tossing.

[0016] Furthermore, the device also includes a driving mechanism, which includes a driving motor fixedly mounted on the swing frame, the output end of the driving motor passes through the swing frame and is rotationally connected to the swing frame, and the output end of the driving motor is fixedly mounted with a rotating screw, and the rotating screw and the movable plate form a spiral pair transmission.

[0017] Furthermore, the adjustment mechanism includes an adjustment shaft fixedly passed through the swing frame and fixedly connected to the swing frame, the adjustment shaft passes through the mounting frame and fixedly connected to the mounting frame, the surface of the adjustment shaft is connected to an external driving source, a linkage shaft passes through the surface of the mounting frame, and the mounting frame is fixedly connected to the linkage shaft, the linkage shaft is fixedly connected to the surface of the swing frame, a rotating shaft is fixedly installed on the surface of the mounting frame, and the rotating shaft is connected to another external driving source.

[0018] Furthermore, the device also includes a transmission mechanism, which includes a hemispherical gear set that passes through the mounting frame and is rotatably connected to the mounting frame. A transmission slide is fixedly installed on the surface of the hemispherical gear set, and one end of the hemispherical gear set is connected to another external drive source.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention drives the two half-ring clamping claws to move in opposite directions through the movement of the moving mechanism, thereby releasing the limiting effect on the milling head. At the same time, as the moving mechanism continues to act, the half-ring clamping claws are driven to move upward, thereby avoiding position interference caused by the positions of the half-ring clamping claws when replacing the milling head, thereby achieving the purpose of automatically disassembling the milling head.

[0021] 2. The present invention drives the rotating mechanism to move through the moving mechanism, and then drives the milling head to revolve, so that the new milling head moves to the bottom of the semi-ring clamping claws. At this time, it is reset by the externally driven reversing driving device, so that the semi-ring clamping claws move down close to the milling head again, and then the two semi-ring clamping claws are driven by the moving mechanism to limit the milling head, thereby achieving the purpose of automatically replacing the milling head and improving the working efficiency of the milling machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of a high-precision adjustment device for a CNC universal milling head provided by an embodiment of the present invention;

[0023] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure at point A;

[0024] Figure 3 For the present invention Figure 1 Schematic diagram of the cross-sectional structure;

[0025] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at point B;

[0026] Figure 5 For the present invention Figure 3 Schematic diagram of the enlarged structure at C;

[0027] Figure 6 This is a schematic structural diagram of another cross-sectional perspective of a high-precision adjustment device for a CNC universal milling head according to the present invention;

[0028] Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged structure at D;

[0029] Figure 8 This is a schematic diagram of the exploded structure of some parts of a high-precision adjustment device for a CNC universal milling head according to the present invention;

[0030] Figure 9 For the present invention Figure 8 Enlarged structural diagram at E.

[0031] In the accompanying drawings: 1. Main frame; 101. Mounting frame; 102. Swing frame; 2. Clamping mechanism; 201. Semi-ring clamping claw; 202. Milling head; 3. Moving mechanism; 301. Moving plate; 302. Linkage cylinder; 303. Moving column head; 304. Rotating cylinder; 305. Arc groove; 306. Linkage round block; 307. Telecentric groove; 308. Slide rod; 309. Compression spring; 310. Connecting plate; 4. Telescopic mechanism; 401. Telescopic rod; 402. Telescopic spring; 403. Transmission slide; 5. Rotating machine Structure; 501, linkage rack; 502, rotating ratchet gear; 503, bevel gear set; 504, rotating disk; 505, sliding column; 506, reciprocating slide; 507, reciprocating column; 508, reciprocating drum; 509, reciprocating slide; 510, switching disk; 511, connecting rod; 512, switching connecting plate; 6, driving mechanism; 601, driving motor; 602, rotating screw; 7, adjusting mechanism; 701, adjusting shaft; 702, linkage shaft; 703, rotating shaft; 8, transmission mechanism; 801, hemispherical gear set. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] It will be understood that the terms "first," "second," etc. used herein may be used to describe various elements, but unless otherwise specified, these elements are not limited by these terms. These terms are only used to distinguish a first element from another element.

[0034] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 7 As shown, in one embodiment, a high-precision adjustment device for a CNC universal milling head is proposed, the device comprising:

[0035] Main frame 1: includes a mounting frame 101 provided on the main frame 1, the mounting frame 101 is mounted on the moving arm of the milling machine, and a swing frame 102 is mounted on the mounting frame 101;

[0036] Clamping mechanism 2: includes multiple milling heads 202 mounted on the swing frame 102, and also includes two half-ring clamping claws 201 that cooperate with each milling head 202. Each milling head 202 is provided with a vibration sensor;

[0037] Moving mechanism 3: used to drive the semi-ring clamping claw 201 to disengage from the milling head 202;

[0038] Telescopic mechanism 4: used to drive the milling head 202 to rotate;

[0039] Rotating mechanism 5: used to drive the milling head 202 to switch positions;

[0040] Adjustment mechanism 7: used to drive the milling head 202 to adjust the angle.

[0041] In practical application, when machining a part, the telescopic mechanism 4 rotates to drive the semi-ring clamping claw 201 to rotate, thereby driving the milling head 202 to rotate and mill the part. Figure 1 and Figure 3 As shown, the milling angle of the milling head 202 can be adjusted by the adjustment mechanism 7 to achieve the purpose of milling operations in different directions. When the milling head 202 is damaged, the vibration sensor on the milling head 202 senses the abnormal vibration of the milling head 202, such as Figure 3 As shown, the telescopic mechanism 4 stops rotating at this time, and the milling head 202 is driven away from the workpiece by the moving arm. At this time, the moving mechanism 3 is driven by the external drive to move, as shown in FIG. Figure 4 and Figure 7 As shown, the movement of the moving mechanism 3 drives the two half-ring clamping claws 201 to move in opposite directions, thereby releasing the limiting effect on the milling head 202. At the same time, as the moving mechanism 3 continues to act, the half-ring clamping claws 201 are driven to move upward, thereby avoiding position interference caused by the position of the half-ring clamping claws 201 when replacing the milling head 202, achieving the purpose of automatically disassembling the milling head 202. When the half-ring clamping claws 201 release the limiting effect on the milling head 202, as shown in FIG. Figure 2 and Figure 5As shown, at this time, the rotating mechanism 5 is driven by the moving mechanism 3 to move, and then the milling head 202 is driven to revolve, so that the new milling head 202 moves to the bottom of the semi-ring clamping claw 201. At this time, it is reset by the externally driven reversing driving device, so that the semi-ring clamping claw 201 is moved down close to the milling head 202 again, and then the two semi-ring clamping claws 201 are driven by the action of the moving mechanism 3 to limit the milling head 202, thereby achieving the purpose of automatically replacing the milling head 202 and improving the working efficiency of the milling machine. At the same time, when all the milling heads 202 have been switched, the staff will replace all the damaged milling heads 202, and then the milling head 202 is driven by the action of the rotating mechanism 5 to switch in the reverse revolution, thereby achieving the purpose of automatically cyclically switching the milling head 202.

[0042] like Figure 4 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9 As shown, as a preferred embodiment of the present invention, the moving mechanism 3 includes a moving plate 301 slidingly connected to the swing frame 102, the surface of the moving plate 301 is rotatably connected to the linkage cylinder 302, the inner wall of the linkage cylinder 302 is fixedly installed with a moving column head 303, and also includes a rotating cylinder 304 installed on the swing frame 102, the rotating cylinder 304 is provided with an arc groove 305 that matches the moving column head 303, the surface of the rotating cylinder 304 is fixedly installed with a linkage block 306, the linkage block 306 is provided with a telecentric groove 307, the surface of each semi-ring clamping claw 201 is fixedly installed with a sliding groove rod 308 that matches the telecentric groove 307, each semi-ring clamping claw 201 is slidably installed on the surface of the connecting plate 310, and each semi-ring clamping claw 201 is connected to the connecting plate 310 through a compression spring 309.

[0043] In actual application of the embodiment of the present invention, when the milling head 202 is damaged, the milling head 202 is moved away from the workpiece by the moving arm, such as Figure 4 As shown, at this time, the movable plate 301 moves upward under the external drive, and the upward movement of the movable plate 301 drives the linkage cylinder 302 to move upward, as shown in FIG. Figure 8 As shown, at this time, the movable column head 303 on the linkage cylinder 302 cooperates with the arc groove 305 to drive the rotating cylinder 304 to rotate, thereby driving the linkage round block 306 to rotate. At this time, through the cooperation of the telecentric groove 307 and the sliding groove rod 308, as shown in FIG. Figure 7After the cam 303 is in the forward direction, the cam 304 is in the forward direction, and the cam 305 is in the forward direction, so that the cam 305 can be turned round and the cam 306 is turned round.

[0044] like Figure 3 and Figure 4 As shown, as another preferred embodiment of the present invention, the telescopic mechanism 4 includes a telescopic rod 401 fixedly connected to the surface of the connecting plate 310, the surface of the telescopic rod 401 is rotatably mounted with a rotating cylinder 304 and a linkage round block 306, the telescopic rod 401 is fixedly connected to the surface of the connecting plate 310, the surface of the telescopic rod 401 is fixedly mounted with a telescopic spring 402, the telescopic rod 401 is slidably connected to the inner wall of the transmission slide 403, and the transmission slide 403 is rotatably connected to the swing frame 102.

[0045] In practical application of the embodiment of the present invention, when the semi-ring clamping claw 201 is driven by the action of the moving mechanism 3 to release the limiting operation of the milling head 202, as shown in FIG. Figure 3 and Figure 4 As shown, the continued movement of the moving mechanism 3 drives the rotating cylinder 304 to move upward, and then drives the telescopic rod 401 to move upward. At this time, the telescopic rod 401 slides upward along the inner wall of the transmission slide 403, driving the connecting plate 310 to move upward, and then drives the semi-ring clamping claw 201 to move upward, thereby achieving the purpose of avoiding interference with the switching of the milling head 202.

[0046] like Figure 2 、 Figure 8 and Figure 9As shown, as another preferred embodiment of the present invention, the rotating mechanism 5 includes a linkage rack 501 fixedly connected to the movable plate 301, and the surface of the swing frame 102 is penetrated by a rotating ratchet gear 502 that cooperates with the linkage rack 501, and the rotating ratchet gear 502 is rotatably connected to the swing frame 102, and the surface of the rotating ratchet gear 502 is fixedly mounted with a bevel gear set 503, and the bevel gear set 503 is rotatably connected to the swing frame 102, and the surface of the bevel gear set 503 is fixedly mounted with a rotating disk 504, and the surface of the rotating disk 504 is fixedly mounted with a sliding column 505, and the surface of the sliding column 505 is fixedly mounted with the reciprocating slide 50 6, the reciprocating slide 506 passes through the swing frame 102 and is slidably connected to the swing frame 102, a reciprocating column 507 is fixedly installed on the surface of the reciprocating slide 506, a reciprocating drum 508 is rotatably installed on the swing frame 102, a reciprocating groove 509 that cooperates with the reciprocating column 507 is provided on the surface of the reciprocating drum 508, a switching disk 510 is fixedly installed on the surface of the reciprocating drum 508, a connecting rod 511 is fixedly installed on the surface of the switching disk 510, and the end of the connecting rod 511 away from the switching disk 510 is connected to the switching connecting plate 512, and multiple milling heads 202 are rotatably connected to the switching connecting plate 512.

[0047] In actual application of the embodiment of the present invention, as the moving mechanism 3 continues to move upward, Figure 2 As shown, at this time, the linkage rack 501 is driven upward by the movable plate 301 to cooperate with the rotating ratchet gear 502 to drive the rotating ratchet gear 502 to rotate. It should be noted here that by rotating the ratchet set on the ratchet gear 502, the linkage rack 501 will not drive the rotating ratchet gear 502 to rotate when it is reset in the later stage. The rotation of the rotating ratchet gear 502 drives the rotating disk 504 to rotate through the bevel gear transmission. The rotation of the rotating disk 504 drives the reciprocating slide plate 506 to move horizontally through the sliding column 505. At this time, the reciprocating cylinder 508 is driven to rotate by the cooperation of the reciprocating column 507 and the reciprocating slide groove 509, thereby driving the switching disk 510 to rotate. Figure 8 As shown, the rotation of the switching disk 510 drives the switching connecting plate 512 to rotate through the transmission of the mechanism. At this time, the new milling head 202 revolves to the bottom of the semi-ring clamping claw 201 to achieve the function of automatic switching. At the same time, after the milling head 202 has completed the switching, the reciprocating column 507 moves to the end of the reciprocating slide 509, and the sliding column 505 moves to the other end of the rotating disk 504 under the rotation of the rotating disk 504. At this time, the rotating disk 504 continues to rotate to drive the reciprocating slide plate 506 to move in the opposite direction, and then drives the reciprocating rotating cylinder 508 to rotate in the opposite direction through the cooperation of the reciprocating slide 509 and the reciprocating column 507. At this time, after the damaged milling head 202 is replaced, the reciprocating rotating cylinder 508 drives the milling head 202 to revolve in the opposite direction to perform a cyclic switching operation.

[0048] like Figure 3As shown, as another preferred embodiment of the present invention, the device also includes a driving mechanism 6, the driving mechanism 6 includes a driving motor 601 fixedly mounted on the swing frame 102, the output end of the driving motor 601 passes through the swing frame 102 and is rotatably connected to the swing frame 102, and a rotating screw 602 is fixedly mounted on the output end of the driving motor 601, and the rotating screw 602 forms a spiral pair transmission with the movable plate 301.

[0049] In practical application of the embodiment of the present invention, when the moving arm drives the milling head 202 away from the workpiece, as shown in FIG. Figure 3 As shown, at this time, the driving motor 601 starts to run, and the operation of the driving motor 601 drives the rotating screw 602 to rotate, and then drives the movable plate 301 to move upward through the spiral pair transmission. The upward movement of the movable plate 301 drives the moving mechanism 3 and the rotating mechanism 5 to move sequentially, thereby achieving the purpose of automatically switching the milling head 202.

[0050] like Figure 1 and Figure 3 As shown, as another preferred embodiment of the present invention, the adjusting mechanism 7 includes an adjusting shaft 701 fixedly passed through the swing frame 102 and fixedly connected to the swing frame 102, the adjusting shaft 701 passes through the mounting frame 101 and is fixedly connected to the mounting frame 101, the surface of the adjusting shaft 701 is connected to an external driving source, a linkage shaft 702 passes through the surface of the mounting frame 101, and the mounting frame 101 is fixedly connected to the linkage shaft 702, the linkage shaft 702 is fixedly connected to the surface of the swing frame 102, a rotating shaft 703 is fixedly installed on the surface of the mounting frame 101, and the rotating shaft 703 is connected to another external driving source.

[0051] In practical application, the embodiment of the present invention is as follows: Figure 3 As shown, the adjusting shaft 701 is driven to rotate by an external driving source, thereby driving the mounting frame 101 to rotate on the movable arm, as shown in FIG. Figure 1 As shown, another driving source drives the rotating shaft 703 to rotate, thereby driving the mounting frame 101 to rotate in another direction, thereby achieving the purpose of automatically adjusting the milling angle of the milling head 202.

[0052] like Figure 3 As shown, as another preferred embodiment of the present invention, the device also includes a transmission mechanism 8, which includes a hemispherical gear set 801 that passes through the mounting frame 101 and is rotatably connected to the mounting frame 101. A transmission slide 403 is fixedly mounted on the surface of the hemispherical gear set 801, and one end of the hemispherical gear set 801 is connected to another external driving source.

[0053] In practical application, when a part is milled, Figure 3As shown, at this time, the hemispherical gear set 801 is driven to rotate by another driving source, and the rotation of the hemispherical gear set 801 drives the connecting plate 310 to rotate through the transmission slide 403, and then drives the milling head 202 to rotate through the semi-ring clamping claw 201. Here, the setting of the hemispherical gear set 801 can meet the power input when adjusting the milling angle. At the same time, the rotation connection between the movable plate 301 and the linkage cylinder 302 ensures that the linkage cylinder 302 will not interfere with the movable plate 301 during milling.

[0054] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-precision adjustment device for a CNC universal milling head, characterized in that: The device comprises: The main frame (1) comprises a mounting frame (101) arranged on the main frame (1), the mounting frame (101) being mounted on a movable arm of a milling machine, and a swing frame (102) being mounted on the mounting frame (101); The clamping mechanism (2) comprises a plurality of milling heads (202) mounted on a swing frame (102), and also comprises two half-ring clamping claws (201) matched with a single milling head (202), and each milling head (202) is provided with a vibration sensor; Moving mechanism (3): used for driving the semi-ring clamping claw (201) to disengage from the milling head (202); Telescopic mechanism (4): used for driving the milling head (202) to rotate; Rotating mechanism (5): used to drive the milling head (202) to switch positions; Adjusting mechanism (7): used for driving the milling head (202) to adjust the angle.

2. A high-precision adjustment device for a CNC universal milling head according to claim 1, characterized in that: The moving mechanism (3) comprises a moving plate (301) slidably connected to the swing frame (102), a linkage cylinder (302) being rotatably connected to the surface of the moving plate (301), a moving column head (303) being fixedly mounted on the inner wall of the linkage cylinder (302), and a rotating cylinder (304) mounted on the swing frame (102), an arc groove (305) being provided on the rotating cylinder (304) and cooperating with the moving column head (303), and the rotating cylinder (304) is provided with a rotating cylinder (304). 04) is fixedly mounted with a linkage round block (306), a telecentric groove (307) is provided on the linkage round block (306), and a sliding groove rod (308) that matches the telecentric groove (307) is fixedly mounted on the surface of each semi-ring clamping claw (201), and each semi-ring clamping claw (201) is slidably mounted on the surface of the connecting plate (310), and each semi-ring clamping claw (201) is connected to the connecting plate (310) through a compression spring (309).

3. The high-precision adjustment device for a CNC universal milling head according to claim 2, characterized in that: The telescopic mechanism (4) comprises a telescopic rod (401) fixedly connected to the surface of the connecting plate (310); a rotating cylinder (304) and a linkage round block (306) are rotatably mounted on the surface of the telescopic rod (401); the telescopic rod (401) is fixedly connected to the surface of the connecting plate (310); a telescopic spring (402) is fixedly mounted on the surface of the telescopic rod (401); the telescopic rod (401) is slidably connected to the inner wall of a transmission slide (403); and the transmission slide (403) is rotatably connected to the swing frame (102).

4. The high-precision adjustment device for a CNC universal milling head according to claim 2, characterized in that: The rotating mechanism (5) comprises a linkage rack (501) fixedly connected to the movable plate (301); a rotating ratchet gear (502) matching the linkage rack (501) is passed through the surface of the swing frame (102); the rotating ratchet gear (502) is rotationally connected to the swing frame (102); a bevel gear set (503) is fixedly mounted on the surface of the rotating ratchet gear (502); the bevel gear set (503) is rotationally connected to the swing frame (102); a rotating disk (504) is fixedly mounted on the surface of the bevel gear set (503); a sliding column (505) is fixedly mounted on the surface of the rotating disk (504); the surface of the sliding column (505) contacts the inner wall of the reciprocating slide (506); and the reciprocating slide (506) is rotated. The slide plate (506) passes through the swing frame (102) and is slidably connected to the swing frame (102). A reciprocating column (507) is fixedly installed on the surface of the reciprocating slide plate (506). A reciprocating rotating cylinder (508) is rotatably installed on the swing frame (102). A reciprocating sliding groove (509) that matches the reciprocating column (507) is provided on the surface of the reciprocating rotating cylinder (508). A switching disk (510) is fixedly installed on the surface of the reciprocating rotating cylinder (508). A connecting rod (511) is fixedly installed on the surface of the switching disk (510). One end of the connecting rod (511) away from the switching disk (510) is connected to the switching connecting plate (512). Multiple milling heads (202) are all rotatably connected to the switching connecting plate (512).

5. The high-precision adjustment device for a CNC universal milling head according to claim 2, characterized in that: The device further comprises a driving mechanism (6), the driving mechanism (6) comprising a driving motor (601) fixedly mounted on the swing frame (102), the output end of the driving motor (601) passing through the swing frame (102) and being rotationally connected to the swing frame (102), a rotating screw rod (602) fixedly mounted on the output end of the driving motor (601), and the rotating screw rod (602) and the movable plate (301) forming a spiral pair transmission.

6. The high-precision adjustment device for a CNC universal milling head according to claim 1, characterized in that: The adjusting mechanism (7) comprises an adjusting shaft (701) fixedly passing through the swing frame (102) and fixedly connected to the swing frame (102); the adjusting shaft (701) passes through the mounting frame (101) and is fixedly connected to the mounting frame (101); the surface of the adjusting shaft (701) is connected to an external driving source; a linkage shaft (702) passes through the surface of the mounting frame (101); the mounting frame (101) and the linkage shaft (702) are fixedly connected; the linkage shaft (702) is fixedly connected to the surface of the swing frame (102); a rotating shaft (703) is fixedly installed on the surface of the mounting frame (101); and the rotating shaft (703) is connected to another external driving source.

7. The high-precision adjustment device for a CNC universal milling head according to claim 3, characterized in that: The device further comprises a transmission mechanism (8), the transmission mechanism (8) comprising a hemispherical gear set (801) which passes through the mounting frame (101) and is rotatably connected to the mounting frame (101), a transmission slide (403) being fixedly mounted on the surface of the hemispherical gear set (801), and one end of the hemispherical gear set (801) being connected to another external driving source.

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