Precise milling device for metal component

Abstract

The invention relates to the technical field of milling, in particular to a metal component precision milling device which comprises a numerical control milling machine, a waste chip cleaning structure is connected to a workbench of the numerical control milling machine and comprises two moving assemblies, and swing blowing assemblies and moving cleaning assemblies are connected to the moving assemblies. The precision milling machining device comprises a numerical control milling machine and a moving assembly, a controller is connected to a protective shell of the numerical control milling machine, the moving assembly comprises connecting shells, the connecting shells are connected to the two sides of a workbench of the numerical control milling machine, and connecting sliding rails are connected into the connecting shells. Therefore, driving motors in the moving assembly and the swing blowing assembly can drive a rotating air nozzle to swing during advancing through a transmission structure, then sweeps on the numerical control milling machine workbench are blown away more thoroughly, the numerical control milling machine workbench is cleaner, and the machining precision of metal components is improved.

Description

Technical Field

[0001] This invention relates to the field of milling technology, specifically to a precision milling apparatus for metal components. Background Technology

[0002] A milling machine is a tool that uses a high-speed rotating milling cutter to cut out the required shape and features by fixing a blank. Most metal components can be machined by milling, drilling, boring, and other processing methods. In existing precision milling processes for metal components, the chips on the worktable need to be cleaned manually with an air gun. If the operator is negligent, the chips may not be cleaned completely, which will affect the precision of the product during processing. To address these issues, a precision milling device for metal components is needed. Summary of the Invention

[0003] The purpose of this invention is to provide a precision milling apparatus for metal components to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A precision milling machine for metal components includes a CNC milling machine. A waste chip cleaning structure is connected to the worktable of the CNC milling machine. The waste chip cleaning structure includes two sets of moving components. A swing blowing component and a moving cleaning component are connected to the moving components. A controller is connected to the protective shell of the CNC milling machine.

[0006] The moving component includes a connecting housing connected to both sides of the CNC milling machine worktable. A connecting slide rail is connected within the connecting housing, and a connecting slider is connected to the connecting slide rail. A moving housing is connected to the connecting slider. A drive motor is connected to the side wall of the moving housing via a connecting seat. The drive end of the drive motor is connected to a drive rod via a coupling. A rotating gear is connected to the side wall of the drive rod. A fixed rack is meshed on the tooth surface of the rotating gear and is connected to the connecting housing. A connecting plate is connected to the end face of the moving housing. A bellows cover is connected between the connecting housing and the moving housing.

[0007] In a preferred embodiment of the present invention, the oscillating air blowing assembly includes a rotating turntable connected to one end of a left-side drive rod. A rotating connecting rod is connected to the side wall of the rotating turntable, and a connecting rod is connected to the other end of the rotating connecting rod. A limiting slider is connected to the side wall of the connecting rod, and one end of the limiting slider is connected to the end face of the movable housing via a connecting plate. The other end of the connecting rod is connected to a pushing shaft, and a rotating crank is connected to the pushing shaft. A fixed connecting block is connected to the side wall of the rotating crank, and the fixed connecting block is connected to the connecting rod. On the side wall of the plate, the other end of the rotating crank is connected to a connecting shaft, the connecting shaft is connected to a connecting plate, the other end of the connecting plate is connected to a moving connecting rod, the side wall of the moving connecting rod is connected to a limiting sleeve, the limiting sleeve is connected to a connecting plate, the side wall of the moving connecting rod is connected to a connecting plate, the connecting plate is connected to a toggle shaft, the toggle shaft is connected to a connecting crank, one end of the connecting crank is connected to a rotating air nozzle through a connecting plate, the rotating air nozzle is connected to a connecting air pipe, and the connecting air pipe is connected to the connecting plate.

[0008] As a preferred embodiment of the present invention, the mobile cleaning assembly includes a rotating turntable connected to one end of a right-side drive rod. A rotating pull rod is connected to the side wall of the rotating turntable, and a connecting pull rod is connected to the other end of the rotating pull rod. A connecting rotating rod is connected to the other end of the connecting pull rod, and a rotating roller is connected to the side wall of the connecting rotating rod. An inclined groove is formed on the side wall of the rotating roller, and a movable lever is connected to the inclined groove. The other end of the movable lever is connected to a movable connecting plate via a connecting plate, and a cleaning brush is connected to the bottom of the movable connecting plate.

[0009] As a preferred embodiment of the present invention, a groove is provided on the connecting slider and corresponding to the connecting slide rail, wherein the connection between the connecting slide rail and the groove is a sliding connection, and the drive motor is connected to the controller through a wire and the connection method is an electrical connection.

[0010] In a preferred embodiment of the present invention, the drive rod is connected to the side wall of the movable housing via a bearing seat, wherein the drive rod and the bearing seat are connected by a rotatable connection, and the rotating turntable and the rotating connecting rod are rotatably connected via a rotating shaft.

[0011] As a preferred embodiment of the present invention, the rotating connecting rod and the connecting connecting rod are rotatably connected by a rotating shaft, and a sliding groove is provided on the side wall of the connecting connecting rod corresponding to the limiting slider, wherein the limiting slider and the sliding groove are connected by a sliding connection.

[0012] As a preferred embodiment of the present invention, a sliding groove is provided on the rotating crank and corresponding to the push connecting shaft, wherein the push connecting shaft and the sliding groove are connected by a sliding connection, the rotating crank has an L-shaped structure, and the rotating crank and the fixed connecting block are rotatably connected by a rotating shaft.

[0013] As a preferred embodiment of the present invention, the connecting plate is provided with a sliding groove corresponding to the connecting shaft, wherein the connection between the connecting shaft and the sliding groove is a sliding connection, and the limiting sleeve is provided with a connecting hole corresponding to the moving link, wherein the connection between the moving link and the connecting hole is a sliding connection.

[0014] As a preferred embodiment of the present invention, a sliding groove is provided on the connecting crank and corresponding to the actuating shaft, wherein the actuating shaft and the sliding groove are connected by a sliding connection, and a circular boss and a circular groove are provided between the rotating air nozzle and the connecting air pipe, wherein the circular boss and the circular groove are connected by a rotating connection.

[0015] In a preferred embodiment of the present invention, one end of the connecting air tube is connected to the air pump via a flexible hose, the rotating turntable and the rotating pull rod are rotatably connected via a rotating shaft, and the rotating pull rod and the connecting pull rod are rotatably connected via a rotating shaft.

[0016] In a preferred embodiment of the present invention, the connecting rod is connected to the side wall of the connecting plate via a bearing seat, wherein the connecting rod and the bearing seat are connected by rotation, the inclined slide groove and the movable lever are fitted by clearance, and the connecting plate and the movable connecting plate are provided with corresponding slide grooves, wherein the movable connecting plate and the slide groove are connected by sliding.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] In this invention, by setting a moving component and a swinging air blowing component in the precision milling processing device for metal components, the drive motors in the moving component and the swinging air blowing component can drive the rotating air nozzle to swing during movement through the transmission structure, thereby blowing away the waste chips on the CNC milling machine worktable more thoroughly, making the CNC milling machine worktable cleaner and improving the precision of metal component processing.

[0019] In this invention, by setting a moving component and a moving cleaning component in the precision milling processing device for metal components, the drive motors in the moving component and the moving cleaning component can reciprocate during the movement of the cleaning brush through the transmission structure, thereby preventing waste chips from sticking to the CNC milling machine worktable and affecting the processing accuracy of the metal components.

[0020] In this invention, by setting a waste chip cleaning structure in the precision milling device for metal components, the moving component, the oscillating air blowing component, the moving cleaning component, and the interaction between the various components in the waste chip cleaning structure can drive the rotating air nozzle to oscillate during movement and the cleaning brush to reciprocate during movement. This dual cleaning allows the waste chips on the CNC milling machine table to be removed more thoroughly, thereby improving the precision of metal component processing. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the isolateral structure of the present invention;

[0022] Figure 2 for Figure 1 Partial structural diagram;

[0023] Figure 3 This is a schematic diagram of the waste cleaning structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the moving component of the present invention;

[0025] Figure 5 for Figure 4 Partial structural diagram;

[0026] Figure 6 This is a schematic diagram of the structure of the oscillating air blowing assembly of the present invention;

[0027] Figure 7 for Figure 6 Partial structural diagram;

[0028] Figure 8 for Figure 7 A magnified structural diagram of A in the middle;

[0029] Figure 9 for Figure 7 A magnified structural diagram of B in the diagram;

[0030] Figure 10 This is a schematic diagram of the structure of the mobile cleaning component of the present invention;

[0031] Figure 11 for Figure 10 A partial structural diagram.

[0032] In the diagram: 1. CNC milling machine; 2. Waste cleaning structure; 3. Moving component; 4. Oscillating air blowing component; 5. Moving cleaning component; 6. Controller; 301. Connecting housing; 302. Connecting slide rail; 303. Connecting slider; 304. Moving box; 305. Drive motor; 306. Drive rod; 307. Rotating gear; 308. Fixed rack; 309. Connecting plate; 310. Bellows cover; 401. Rotating turntable; 402. Rotating connecting rod; 403. Connecting connecting rod; 404. Limiting slider; 405. Pushing link Shaft; 406, Rotating crank; 407, Fixed connecting block; 408, Connecting shaft; 409, Connecting lever; 410, Moving connecting rod; 411, Limiting sleeve; 412, Connecting plate; 413, Actuating shaft; 414, Connecting crank; 415, Rotating nozzle; 416, Connecting air pipe; 501, Rotating turntable; 502, Rotating pull rod; 503, Connecting pull rod; 504, Connecting rotating rod; 505, Rotating roller; 506, Inclined slide groove; 507, Moving lever; 508, Moving plate; 509, Cleaning brush. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] For an example, please refer to... Figure 1-11 The present invention provides a technical solution:

[0035] A precision milling machine for metal components includes a CNC milling machine 1, a waste chip cleaning structure 2 connected to the worktable of the CNC milling machine 1, the waste chip cleaning structure 2 including two sets of moving components 3, a swing blowing component 4 and a moving cleaning component 5 connected to the moving components 3, and a controller 6 connected to the protective shell of the CNC milling machine 1.

[0036] In this embodiment, reference Figure 1 , Figure 2 , Figure 4 and Figure 5The moving component 3 includes a connecting housing 301, which is connected to both sides of the worktable of the CNC milling machine 1. A connecting slide rail 302 is connected in the connecting housing 301. A connecting slider 303 is connected on the connecting slide rail 302. A moving housing 304 is connected on the connecting slider 303. A drive motor 305 is connected to the side wall of the moving housing 304 via a connecting seat. A drive rod 306 is connected to the drive end of the drive motor 305 via a coupling. A rotating gear 307 is connected to the side wall of the drive rod 306. A fixed rack 308 is meshed on the tooth surface of the rotating gear 307. The fixed rack 308 is connected in the connecting housing 301. A connecting plate 309 is connected to the end face of the moving housing 304. A bellows cover 310 is connected between the connecting housing 301 and the moving housing 304.

[0037] Based on the above structure and the connection relationship of the above structure, the drive motor 305 is controlled by the controller 6 to run. When the drive end of the drive motor 305 rotates, it will drive the drive rod 306 and the rotating gear 307 to rotate in sequence. When the rotating gear 307 rotates, under the action of the fixed rack 308, it can drive the connecting air pipe 416 and the cleaning brush 509 on the connecting plate 309 to move.

[0038] Furthermore, the drive motor 305 is connected to the controller 6 via wires in an electrical connection manner, and the operation of the drive motor 305 can be controlled by the controller 6.

[0039] Furthermore, a groove is provided on the connecting slider 303 corresponding to the connecting slide rail 302, wherein the connecting slide rail 302 and the groove are connected in a sliding connection. The drive rod 306 is connected to the side wall of the movable housing 304 through a bearing seat, wherein the drive rod 306 and the bearing seat are connected in a rotating connection. When the drive rod 306 rotates, it can drive the connecting air pipe 416 and the cleaning brush 509 to move.

[0040] In this embodiment, reference Figure 1 , Figure 7 , Figure 8 and Figure 9The oscillating air blowing assembly 4 includes a rotating turntable 401, which is connected to one end of a left-side drive rod 306. A rotating connecting rod 402 is connected to the side wall of the rotating turntable 401, and a connecting rod 403 is connected to the other end of the rotating connecting rod 402. A limiting slider 404 is connected to the side wall of the connecting rod 403, and one end of the limiting slider 404 is connected to the end face of the movable housing 304 via a connecting plate. The other end of the connecting rod 403 is connected to a push shaft 405, and a rotating crank 406 is connected to the push shaft 405. A fixed connecting block 407 is connected to the side wall of the rotating crank 406 and is connected to the side wall of the connecting plate 309. The other end of the crank 406 is connected to a connecting shaft 408, the connecting shaft 408 is connected to a connecting plate 409, the other end of the connecting plate 409 is connected to a moving connecting rod 410, the side wall of the moving connecting rod 410 is connected to a limiting sleeve 411, the limiting sleeve 411 is connected to a connecting plate 309, the side wall of the moving connecting rod 410 is connected to a connecting plate 412, the connecting plate 412 is connected to a toggle shaft 413, the toggle shaft 413 is connected to a connecting crank 414, one end of the connecting crank 414 is connected to a rotating air nozzle 415 through a connecting plate, the rotating air nozzle 415 is connected to a connecting air pipe 416, and the connecting air pipe 416 is connected to the connecting plate 309;

[0041] Based on the above structure and the connection relationship of the above structure, when the drive rod 306 rotates, it drives the rotating turntable 401 to rotate. When the rotating turntable 401 rotates, it drives the rotating crank 406 to swing around the axis of the fixed connecting block 407 through the rotating connecting rod 402, the connecting connecting rod 403 and the pushing connecting shaft 405. When the rotating crank 406 swings, it drives the moving connecting rod 410 to move back and forth through the connecting connecting shaft 408 and the connecting deflector plate 409. When the moving connecting rod 410 moves, it drives the rotating air nozzle 415 to swing back and forth through the connecting plate 412, the deflector connecting shaft 413 and the connecting crank 414.

[0042] Furthermore, the rotating turntable 401 and the rotating connecting rod 402 are rotatably connected via a rotating shaft, and the rotating connecting rod 402 and the connecting connecting rod 403 are rotatably connected via a rotating shaft. A groove is provided on the side wall of the connecting connecting rod 403 corresponding to the limiting slider 404, wherein the limiting slider 404 and the groove are slidably connected. A groove is provided on the rotating crank 406 corresponding to the pushing shaft 405, wherein the pushing shaft 405 and the groove are slidably connected. The rotating crank 406 has an L-shaped structure and is rotatably connected to the fixed connecting block 407 via a rotating shaft. A groove is provided on the connecting lever 409 corresponding to the connecting shaft 408. The connecting shaft 408 is slidably connected to the slide groove. The limiting sleeve 411 is provided with a connecting hole corresponding to the moving connecting rod 410. The moving connecting rod 410 is slidably connected to the connecting hole. The connecting crank 414 is provided with a slide groove corresponding to the actuating shaft 413. The actuating shaft 413 is slidably connected to the slide groove. A circular boss and a circular groove are provided between the rotating air nozzle 415 and the connecting air pipe 416, which can be connected to each other. The circular boss and the circular groove are rotatably connected. One end of the connecting air pipe 416 is connected to the air pump through a hose. When the rotating turntable 401 rotates, it can drive the rotating air nozzle 415 to swing.

[0043] In this embodiment, reference Figure 1 , Figure 2 , Figure 10 and Figure 11 The mobile cleaning assembly 5 includes a rotating turntable 501, which is connected to one end of a right-side drive rod 306. A rotating pull rod 502 is connected to the side wall of the rotating turntable 501. A connecting pull rod 503 is connected to the other end of the rotating pull rod 502. A connecting rotating rod 504 is connected to the other end of the connecting pull rod 503. A rotating roller 505 is connected to the side wall of the connecting rotating rod 504. An inclined groove 506 is provided on the side wall of the rotating roller 505. A moving lever 507 is connected to the inclined groove 506. The other end of the moving lever 507 is connected to a moving connecting plate 508 through a connecting plate. A cleaning brush 509 is connected to the bottom of the moving connecting plate 508.

[0044] Based on the above structure and the connection relationship of the above structure, when the drive rod 306 rotates, it drives the rotating turntable 501 to rotate. When the rotating turntable 501 rotates, it drives the connecting rod 504 to reciprocate through the rotating pull rod 502 and the connecting pull rod 503. When the connecting rod 504 reciprocates, it drives the rotating roller 505 to reciprocate. When the rotating roller 505 reciprocates, it drives the moving connecting plate 508 to reciprocate through the inclined slide 506 and the moving lever 507. When the moving connecting plate 508 reciprocates, it drives the cleaning brush 509 to reciprocate.

[0045] Furthermore, the rotating turntable 501 and the rotating pull rod 502 are rotatably connected via a rotating shaft, and the rotating pull rod 502 and the connecting pull rod 503 are rotatably connected via a rotating shaft. The connecting rod 504 is connected to the side wall of the connecting plate 309 via a bearing seat. The connecting rod 504 and the bearing seat are rotatably connected. The inclined slide groove 506 and the moving lever 507 are clearance-fitted. The connecting plate 309 and the moving connecting plate 508 are provided with corresponding slide grooves. The moving connecting plate 508 and the slide groove are slidably connected. When the rotating turntable 501 rotates, it can drive the cleaning brush 509 to move back and forth.

[0046] Workflow of the present invention: When using the precision milling machine for metal components, first connect the power supply to the device to put it into working state. Control the drive motor 305 to run through the controller 6. When the drive end of the drive motor 305 rotates, it will drive the drive rod 306 and the rotating gear 307 to rotate in sequence. When the rotating gear 307 rotates, under the action of the fixed rack 308, it can drive the connecting air pipe 416 and the cleaning brush 509 on the connecting plate 309 to move.

[0047] When the drive rod 306 rotates, it drives the rotary turntable 501 to rotate. When the rotary turntable 501 rotates, it drives the connecting rod 504 to reciprocate through the rotating pull rod 502 and the connecting pull rod 503. When the connecting rod 504 reciprocates, it drives the rotating roller 505 to reciprocate. When the rotating roller 505 reciprocates, it drives the moving connecting plate 508 to reciprocate through the inclined slide 506 and the moving lever 507. When the moving connecting plate 508 reciprocates, it drives the cleaning brush 509 to reciprocate, preventing waste chips from sticking to the worktable of the CNC milling machine 1.

[0048] When the drive rod 306 rotates, it drives the rotating turntable 401 to rotate. When the rotating turntable 401 rotates, it drives the rotating crank 406 to swing around the axis of the fixed connecting block 407 through the rotating connecting rod 402, connecting connecting rod 403 and pushing connecting shaft 405. When the rotating crank 406 swings, it drives the moving connecting rod 410 to move back and forth through the connecting connecting shaft 408 and connecting dial plate 409. When the moving connecting rod 410 moves, it drives the rotating air nozzle 415 to swing back and forth through the connecting plate 412, dial connecting shaft 413 and connecting crank 414, thereby blowing away the waste chips on the worktable of the CNC milling machine 1.

[0049] The CNC milling machine 1, drive motor 305 and controller 6 used in this invention are all existing known electrical devices, and all can be purchased and used directly on the market. Their structure, circuit and control principle are all existing known technologies. Therefore, the structure, circuit and control principle of the CNC milling machine 1, drive motor 305 and controller 6 will not be described in detail here.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision milling apparatus for metal components, comprising a CNC milling machine (1), characterized in that: The CNC milling machine (1) has a waste cleaning structure (2) connected to its worktable. The waste cleaning structure (2) includes two sets of moving components (3). The moving components (3) are connected to a swing blowing component (4) and a moving cleaning component (5). The protective shell of the CNC milling machine (1) is connected to a controller (6). The moving component (3) includes a connecting housing (301), which is connected to both sides of the worktable of the CNC milling machine (1). A connecting slide rail (302) is connected in the connecting housing (301), and a connecting slider (303) is connected on the connecting slide rail (302). A moving housing (304) is connected on the connecting slider (303). A drive motor (305) is connected to the side wall of the moving housing (304) via a connecting seat. The drive end of the drive unit is connected to a drive rod (306) via a coupling. A rotating gear (307) is connected to the side wall of the drive rod (306). A fixed rack (308) is meshed on the tooth surface of the rotating gear (307). The fixed rack (308) is connected in the connecting housing (301). A connecting plate (309) is connected to the end face of the movable housing (304). A bellows cover (310) is connected between the connecting housing (301) and the movable housing (304).

2. The precision milling apparatus for metal components according to claim 1, characterized in that: The oscillating air blowing assembly (4) includes a rotating turntable (401), which is connected to one end of the left drive rod (306). A rotating connecting rod (402) is connected to the side wall of the rotating turntable (401), and a connecting rod (403) is connected to the other end of the rotating connecting rod (402). A limiting slider (404) is connected to the side wall of the connecting rod (403). One end of the limiting slider (404) is connected to the end face of the movable housing (304) through a connecting plate. The other end of the connecting rod (403) is connected to a push shaft (405), and a rotating crank (406) is connected to the push shaft (405). A fixed connecting block (407) is connected to the side wall of the rotating crank (406), and the fixed connecting block (407) is connected to the side wall of the connecting plate (309). (406) is connected to a connecting shaft (408) at the other end. A connecting lever (409) is connected to the connecting shaft (408). A moving link (410) is connected to the other end of the connecting lever (409). A limiting sleeve (411) is connected to the side wall of the moving link (410). The limiting sleeve (411) is connected to the connecting plate (309). A connecting plate (412) is connected to the side wall of the moving link (410). A toggle shaft (413) is connected to the connecting plate (412). A connecting crank (414) is connected to the toggle shaft (413). One end of the connecting crank (414) is connected to a rotating air nozzle (415) through a connecting plate. A connecting air pipe (416) is connected to the rotating air nozzle (415). The connecting air pipe (416) is connected to the connecting plate (309).

3. The precision milling apparatus for metal components according to claim 2, characterized in that: The mobile cleaning assembly (5) includes a rotating turntable (501), which is connected to one end of a right-side drive rod (306). A rotating pull rod (502) is connected to the side wall of the rotating turntable (501). A connecting pull rod (503) is connected to the other end of the rotating pull rod (502). A connecting rod (504) is connected to the other end of the connecting pull rod (503). A rotating roller (505) is connected to the side wall of the connecting rod (504). An inclined groove (506) is provided on the side wall of the rotating roller (505). A movable lever (507) is connected in the inclined groove (506). The other end of the movable lever (507) is connected to a movable connecting plate (508) through a connecting plate. A cleaning brush (509) is connected to the bottom of the movable connecting plate (508).

4. The precision milling apparatus for metal components according to claim 3, characterized in that: The connecting slider (303) has a groove corresponding to the connecting slide rail (302), wherein the connecting slide rail (302) and the groove are connected in a sliding connection manner, and the drive motor (305) is connected to the controller (6) through a wire and the connection method is an electrical connection. The drive rod (306) is connected to the side wall of the movable housing (304) through a bearing seat. The drive rod (306) and the bearing seat are connected by a rotatable connection. The rotating turntable (401) and the rotating connecting rod (402) are rotatably connected by a rotating shaft.

5. The precision milling apparatus for metal components according to claim 3, characterized in that: The rotating connecting rod (402) and the connecting connecting rod (403) are rotatably connected by a rotating shaft. The connecting connecting rod (403) has a groove on its side wall corresponding to the limiting slider (404). The limiting slider (404) and the groove are connected by a sliding connection.

6. The precision milling apparatus for metal components according to claim 3, characterized in that: The rotating crank (406) is provided with a sliding groove corresponding to the push connecting shaft (405), wherein the push connecting shaft (405) and the sliding groove are connected by a sliding connection. The rotating crank (406) has an L-shaped structure, and the rotating crank (406) and the fixed connecting block (407) are rotatably connected by a rotating shaft.

7. The precision milling apparatus for metal components according to claim 3, characterized in that: The connecting plate (409) has a sliding groove corresponding to the connecting shaft (408), wherein the connecting shaft (408) and the sliding groove are connected in a sliding manner. The limiting sleeve (411) has a connecting hole corresponding to the moving link (410), wherein the moving link (410) and the connecting hole are connected in a sliding manner.

8. The precision milling apparatus for metal components according to claim 3, characterized in that: The connecting crank (414) is provided with a sliding groove corresponding to the actuating shaft (413), wherein the actuating shaft (413) and the sliding groove are connected by a sliding connection. The rotating air nozzle (415) and the connecting air pipe (416) are provided with a circular boss and a circular groove that can be connected to each other, wherein the circular boss and the circular groove are connected by a rotating connection.

9. The precision milling apparatus for metal components according to claim 3, characterized in that: One end of the connecting air pipe (416) is connected to the air pump via a hose. The rotating turntable (501) and the rotating pull rod (502) are rotatably connected via a rotating shaft. The rotating pull rod (502) and the connecting pull rod (503) are rotatably connected via a rotating shaft.

10. A precision milling apparatus for metal components according to claim 3, characterized in that: The connecting rod (504) is connected to the side wall of the connecting plate (309) through a bearing seat. The connecting rod (504) and the bearing seat are connected by rotation. The inclined slide groove (506) and the moving lever (507) are fitted by clearance. The connecting plate (309) and the moving plate (508) are provided with corresponding slide grooves. The moving plate (508) and the slide groove are connected by sliding connection.

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