Numerical control milling machine with multi-surface cutting function

Abstract

The invention discloses a numerical control milling machine with a multi-face cutting function, and relates to the technical field of numerical control milling machines, the numerical control milling machine comprises a workbench, a clamping module, a stand column, a longitudinal moving assembly, a vertical lifting assembly, a driving motor, a milling cutter and a transverse moving assembly, the workbench is placed on a plane, and the transverse moving assembly is arranged on the workbench; the vertical columns are arranged at the two ends of the workbench respectively, the top ends of the two vertical columns are fixedly connected with the longitudinal moving assembly, the longitudinal moving assembly is fixedly connected with the vertical lifting assembly, the driving motor is arranged on the vertical lifting assembly and fixedly connected with the milling cutter, and the clamping module is fixedly connected with the transverse moving assembly. The clamping module can turn over so that multi-face machining can be achieved, the auxiliary positioning module is arranged on the clamping module, the part can be positioned and clamped in an auxiliary mode, and when the clamping face also needs to be machined, the side face of the part is fixed through the auxiliary positioning module.

Description

Technical Field

[0001] The present invention relates to the technical field of CNC milling machines, and specifically to a CNC milling machine with multi-face cutting function. Background Art

[0002] With the continuous progress of technology, the structures and shapes of mechanical products are becoming increasingly complex, and the requirements for machining accuracy and efficiency are also getting higher and higher.

[0003] In the prior art, when parts machined by a CNC milling machine need multi-face machining, they need to be clamped multiple times for machining. Re-clamping also requires repositioning, resulting in low work efficiency and great inconvenience. Summary of the Invention

[0004] The purpose of the present invention is to provide a CNC milling machine with multi-face cutting function to solve the problems raised in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A CNC milling machine with multi-face cutting function includes a workbench, a clamping module, a column, a longitudinal movement component, a vertical lifting component, a driving motor, a milling cutter, and a transverse movement component. The workbench is placed on a flat surface, and a transverse movement component is arranged on the workbench. Columns are respectively arranged at both ends of the workbench. The tops of the two columns are fixedly connected to the longitudinal movement component. The longitudinal movement component is fixedly connected to the vertical lifting component. The driving motor is arranged on the vertical lifting component. The driving motor is fixedly connected to the milling cutter. The clamping module is fixedly connected to the transverse movement component.

[0006] The workbench is used to fix each component. The transverse movement component drives the clamping module to move horizontally. The clamping module can clamp the parts to be machined. The column is used to support the longitudinal movement component. The driving motor drives the milling cutter to rotate. The vertical lifting component controls the lifting of the milling cutter. The longitudinal movement component controls the longitudinal movement of the milling cutter.

[0007] Further, the clamping module includes a bottom plate, a flipping module, support columns, a clamping module, and an auxiliary positioning module. The bottom plate is fixedly connected to the transverse movement component. Support columns are respectively arranged at both ends of the bottom plate. The two support columns are placed opposite to each other. A connecting bracket is arranged at the top of the support column. The connecting bracket of the support column is rotationally connected to the clamping module. The flipping module is fixedly connected to the bottom plate. The flipping module is fixedly connected to the clamping module. The clamping module is connected to the auxiliary positioning module. The bottom plate is used to fix each component. The support column is used to support the clamping module. The flipping module can control the flipping of the clamping module to machine the side of the part, realizing multi-face machining. When multiple identical parts need to be machined, the auxiliary positioning module can cooperate with the clamping module for positioning and clamping. When the surface clamped by the clamping module needs to be machined, the part can be clamped by the auxiliary positioning module, eliminating the need for multiple clampings.

[0008] Further, the flipping module includes a support block, a flipping motor, a worm, a worm gear, and a gearbox. The support block is fixedly connected to the bottom plate, the flipping motor is fixedly connected to the support block, the gearbox is fixedly connected to the bottom plate, the gearbox is rotatably connected to the worm, one end of the worm near the flipping motor passes through the gearbox and is fixedly connected to the flipping motor, the worm meshes with the worm gear and rotates, and the worm gear is fixedly connected to the clamping module; the support block is used to support the flipping motor, the flipping motor controls the rotation of the worm, the worm drives the worm gear to rotate, and the worm and the worm gear are self-locking to fix the flipping angle of the clamping module, and the gearbox prevents impurities such as iron filings from entering.

[0009] Further, the clamping module includes a fixed base, fixed blocks, flipping bosses, fastening modules, and connecting columns. Fixed blocks are respectively arranged at both ends of the fixed base, the two fixed blocks are placed opposite to each other, the fixed blocks are fixedly connected to the fastening modules, a plurality of flipping bosses are arranged at the bottom of the fixed base, the flipping bosses are rotatably connected to the connecting brackets of the support columns, a connecting column is arranged on the flipping boss near the worm gear, one end of the connecting column sequentially passes through the connecting bracket of the support column and the gearbox, and the connecting column is fixedly connected to the worm gear; the fastening module can clamp parts, the connecting column rotates following the worm gear, and the connecting column controls the flipping of the fixed base through the flipping boss.

[0010] Further, the auxiliary positioning module includes a mounting block, a driving module, a clamping assembly, a lead screw, and a guide rod. A guide groove is provided on the fixed base, the mounting block is arranged on the guide groove of the fixed base, the guide groove of the fixed base is slidably connected to the clamping assembly, mounting bosses are respectively arranged at both ends of the fixed base, the fixed base is rotatably connected to the lead screw through the mounting bosses, the fixed base is fixedly connected to the guide rod through the mounting bosses, the driving module is fixedly connected to the fixed base, the mounting block is rotatably connected to the lead screw, the mounting block is fixedly connected to the guide rod, clamping assemblies are respectively arranged at both ends of the lead screw, the clamping assemblies are slidably connected to the guide rod, one end of the lead screw is fixedly connected to the driving module, and the thread directions at both ends of the lead screw are opposite; the driving module controls the rotation of the lead screw, the rotation of the lead screw drives the clamping assembly to move, and the guide rod facilitates the sliding of the clamping assembly.

[0011] Further, the fastening module includes a clamping cylinder and a fastening block. The clamping cylinder is fixedly connected to the fixed block, and the telescopic end of the clamping cylinder passes through the fixed block and is fixedly connected to the fastening block; the clamping cylinder controls the telescopic clamping of the fastening block.

[0012] Further, the driving module includes a clamping motor, a driving gear, a driven gear and a transmission case. The clamping motor is fixedly connected to the fixed base. The transmission case is fixedly connected to the mounting boss of the fixed base. The output end of the clamping motor passes through the transmission case and is fixedly connected to the driving gear. The driving gear meshes and rotates with the driven gear. One end of the lead screw close to the driven gear passes through the transmission case and is fixedly connected to the driven gear. The clamping motor controls the rotation of the driving gear, and the driving gear drives the driven gear to rotate. The transmission case prevents impurities from entering and affecting the rotation of the gears.

[0013] Further, the clamping assembly includes a clamping rotating block, a driven rotating block, a connecting block and a limiting post. The clamping rotating block is provided with a threaded hole, and the clamping rotating block is threadedly connected to the lead screw through the threaded hole. When the clamping rotating block rotates counterclockwise, the lead screw controls the clamping rotating block to clamp inward. The driven rotating block is provided with a through hole, and the driven rotating block is slidably connected to the guide rod through the through hole. A number of gear teeth are evenly distributed along the circumferential direction of the connecting surface of the clamping rotating block and the driven rotating block. The gear teeth are arranged in a shape similar to a gear and the tooth profile angle is 90°. The clamping rotating block and the driven rotating block are meshed and connected through the gear teeth. The connecting block is attached to the surface of the clamping rotating block away from the mounting block, and the connecting block is attached to the driven rotating block. Avoidance holes are respectively provided at both ends of the connecting block. The lead screw and the guide rod respectively pass through the avoidance holes at both ends of the connecting block. Semi-circular sliding grooves are respectively provided at both ends of the connecting block. A number of the limiting posts pass through the semi-circular sliding groove at one end of the connecting block and are fixedly connected to the clamping rotating block. A number of the limiting posts pass through the semi-circular sliding groove at the other end of the connecting block and are fixedly connected to the driven rotating block. The clamping rotating block is threadedly connected to the lead screw. Since the clamping rotating block can still rotate, when the lead screw rotates, it drives the clamping rotating block to rotate. When the clamping rotating block and the driven rotating block mesh and rotate a certain angle, they fit and lock. The clamping rotating block will linearly move on the lead screw to clamp the part. When loosening, the clamping rotating block and the driven rotating block can be retracted into the guide groove of the fixed base to prevent the part from being affected during side machining. The connecting block is used to connect the clamping rotating block and the driven rotating block to control the synchronous translation of the clamping rotating block and the driven rotating block without affecting the rotation. The limiting posts are used to fix the connecting block.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The clamping module can be flipped to facilitate machining the side of the part;

[0016] 2. The auxiliary positioning module can position and assist in clamping the part, can switch the clamping surface to machine the part, realize multi-sided machining, and the auxiliary positioning module can be retracted to avoid being affected during side machining of the part. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 is a schematic diagram of the clamping module structure of the present invention;

[0019] Figure 3 Schematic structural diagram of the support column, clamping module and auxiliary positioning module of the present invention;

[0020] Figure 4 Schematic structural diagram of the auxiliary positioning module of the present invention;

[0021] Figure 5 Schematic structural diagram of the clamping assembly of the present invention.

[0022] In the figure: 1, workbench; 2, clamping module; 21, bottom plate; 22, flipping module; 221, support block; 222, flipping motor; 223, worm; 224, worm gear; 225, gear box; 23, support column; 24, clamping module; 241, fixed base; 242, fixed block; 243, flipping boss; 244, fastening module; 2441, clamping cylinder; 2442, fastening block; 245, connecting column; 25, auxiliary positioning module; 251, mounting block; 252, driving module; 2521, clamping motor; 2522, driving gear; 2523, driven gear; 2524, transmission box; 253, clamping assembly; 2531, clamping rotating block; 2532, driven rotating block; 2533, connecting block; 2534, limiting column; 254, lead screw; 255, guide rod; 3, column; 4, longitudinal moving assembly; 5, vertical lifting assembly; 6, driving motor; 7, milling cutter; 8, transverse moving assembly. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Embodiment: As Figures 1-5 shown, the present invention provides a technical solution, a numerically controlled milling machine with multi-sided cutting function, including a workbench 1, a clamping module 2, a column 3, a longitudinal moving assembly 4, a vertical lifting assembly 5, a driving motor 6, a milling cutter 7 and a transverse moving assembly 8. The workbench 1 is placed on a plane, a transverse moving assembly 8 is arranged on the workbench 1, columns 3 are respectively arranged at both ends of the workbench 1, the tops of the two columns 3 are fixedly connected to the longitudinal moving assembly 4, the longitudinal moving assembly 4 is fixedly connected to the vertical lifting assembly 5, a driving motor 6 is arranged on the vertical lifting assembly 5, the driving motor 6 is fixedly connected to the milling cutter 7, and the clamping module 2 is fixedly connected to the transverse moving assembly 8.

[0025] The workbench 1 is used to fix each component. The transverse movement component 8 drives the clamping module 2 to move transversely. The clamping module 2 can clamp the part to be machined. The column 3 is used to support the longitudinal movement component 4. The driving motor 6 drives the milling cutter 7 to rotate. The vertical lifting component 5 controls the lifting of the milling cutter 7. The longitudinal movement component 4 controls the longitudinal movement of the milling cutter 7.

[0026] As Figure 2 shown, the clamping module 2 includes a bottom plate 21, a flipping module 22, support columns 23, a clamping module 24, and an auxiliary positioning module 25. The bottom plate 21 is fixedly connected to the transverse movement component 8. Support columns 23 are respectively arranged at both ends of the bottom plate 21. The two support columns 23 are placed opposite to each other. A connecting bracket is arranged at the top of the support column 23. The connecting bracket of the support column 23 is rotatably connected to the clamping module 24. The flipping module 22 is fixedly connected to the bottom plate 21. The flipping module 22 is fixedly connected to the clamping module 24. The clamping module 24 is connected to the auxiliary positioning module 25.

[0027] The bottom plate 21 is used to fix each component. The support columns 23 are used to support the clamping module 24. The flipping module 22 can control the flipping of the clamping module 24 so as to machine the side surface of the part and realize multi-sided machining. When multiple identical parts need to be machined, the auxiliary positioning module 25 can cooperate with the clamping module 24 for positioning and clamping. When the surface clamped by the clamping module 24 needs to be machined, the part can be clamped by the auxiliary positioning module 25, and there is no need for multiple clampings.

[0028] As Figure 2 shown, the flipping module 22 includes a support block 221, a flipping motor 222, a worm 223, a worm gear 224, and a gear box 225. The support block 221 is fixedly connected to the bottom plate 21. The flipping motor 222 is fixedly connected to the support block 221. The gear box 225 is fixedly connected to the bottom plate 21. The gear box 225 is rotatably connected to the worm 223. One end of the worm 223 close to the flipping motor 222 passes through the gear box 225 and is fixedly connected to the flipping motor 222. The worm 223 meshes and rotates with the worm gear 224. The worm gear 224 is fixedly connected to the clamping module 24.

[0029] The support block 221 is used to support the flipping motor 222. The flipping motor 222 controls the rotation of the worm 223. The worm 223 drives the worm gear 224 to rotate. The worm 223 and the worm gear 224 are self-locking to fix the flipping angle of the clamping module 24. The gear box 225 prevents impurities such as iron chips from entering.

[0030] As Figure 3As shown, the clamping module 24 includes a fixed base 241, fixing blocks 242, flipping bosses 243, a fastening module 244, and connecting columns 245. Fixing blocks 242 are respectively provided at both ends of the fixed base 241. The two fixing blocks 242 are placed opposite to each other and are fixedly connected to the fastening module 244. A plurality of flipping bosses 243 are provided at the bottom of the fixed base 241. The flipping bosses 243 are rotationally connected to the connecting brackets of the support columns 23. A connecting column 245 is provided on the flipping boss 243 near one end of the worm gear 224. One end of the connecting column 245 sequentially passes through the connecting bracket of the support column 23 and the gearbox 225, and the connecting column 245 is fixedly connected to the worm gear 224.

[0031] The fixing blocks 242 are fixed to the fixed base 241 by welding. The fastening module 244 can clamp parts. The connecting column 245 rotates following the worm gear 224, and the connecting column 245 controls the flipping of the fixed base 241 through the flipping bosses 243.

[0032] As Figure 3 、 Figure 4 As shown, the auxiliary positioning module 25 includes a mounting block 251, a driving module 252, a clamping assembly 253, a lead screw 254, and a guide rod 255. A guide groove is provided on the fixed base 241, and the mounting block 251 is arranged on the guide groove of the fixed base 241. The guide groove of the fixed base 241 is slidably connected to the clamping assembly 253. Mounting bosses are respectively provided at both ends of the fixed base 241. The fixed base 241 is rotationally connected to the lead screw 254 through the mounting bosses, and the fixed base 241 is fixedly connected to the guide rod 255 through the mounting bosses. The driving module 252 is fixedly connected to the fixed base 241. The mounting block 251 is rotationally connected to the lead screw 254 and is fixedly connected to the guide rod 255. Clamping assemblies 253 are respectively provided at both ends of the lead screw 254. The clamping assemblies 253 are slidably connected to the guide rod 255. One end of the lead screw 254 is fixedly connected to the driving module 252, and the thread directions at both ends of the lead screw 254 are opposite.

[0033] The mounting block 251 can be drilled and fixed to the fixed base 241 by screws. The driving module 252 controls the rotation of the lead screw 254. The rotation of the lead screw 254 drives the clamping assembly 253 to move, and the guide rod 255 facilitates the sliding of the clamping assembly 253.

[0034] As Figure 3 As shown, the fastening module 244 includes a clamping cylinder 2441 and a fastening block 2442. The clamping cylinder 2441 is fixedly connected to the fixing block 242, and the telescopic end of the clamping cylinder 2441 passes through the fixing block 242 and is fixedly connected to the fastening block 2442.

[0035] The clamping cylinder 2441 is provided with a flange and is fixed to the fixed block 242 by screws. The clamping cylinder 2441 controls the expansion and contraction of the fastening block 2442 for clamping.

[0036] As Figure 4 shown, the driving module 252 includes a clamping motor 2521, a driving gear 2522, a driven gear 2523 and a transmission case 2524. The clamping motor 2521 is fixedly connected to the fixed base 241. The transmission case 2524 is fixedly connected to the mounting boss of the fixed base 241. The output end of the clamping motor 2521 passes through the transmission case 2524 and is fixedly connected to the driving gear 2522. The driving gear 2522 meshes with the driven gear 2523 for rotation. One end of the lead screw 254 close to the driven gear 2523 passes through the transmission case 2524 and is fixedly connected to the driven gear 2523.

[0037] The clamping motor 2521 controls the rotation of the driving gear 2522. The driving gear 2522 drives the driven gear 2523 to rotate. The transmission case 2524 prevents impurities from entering and affecting the rotation of the gears.

[0038] As Figure 5 shown, the clamping assembly 253 includes a clamping rotating block 2531, a driven rotating block 2532, a connecting block 2533 and a limiting post 2534. The clamping rotating block 2531 is provided with a threaded hole. The clamping rotating block 2531 is threadedly connected to the lead screw 254 through the threaded hole. When the clamping rotating block 2531 rotates counterclockwise, the lead screw 254 controls the clamping rotating block 2531 to clamp inward. The driven rotating block 2532 is provided with a through hole. The driven rotating block 2532 is slidably connected to the guide rod 255 through the through hole. A number of gear teeth are evenly distributed along the circumferential direction of the connecting surface of the clamping rotating block 2531 and the driven rotating block 2532. The gear teeth are arranged in a shape similar to a gear and the tooth profile angle is 90°. The clamping rotating block 2531 and the driven rotating block 2532 are meshed and connected through the gear teeth. The connecting block 2533 is attached to the surface of the clamping rotating block 2531 away from the mounting block 251. The connecting block 2533 is attached to the driven rotating block 2532. Avoidance holes are respectively provided at both ends of the connecting block 2533. The lead screw 254 and the guide rod 255 respectively pass through the avoidance holes at both ends of the connecting block 2533. Semi-circular sliding grooves are respectively provided at both ends of the connecting block 2533. A number of the limiting posts 2534 pass through the semi-circular sliding groove at one end of the connecting block 2533 and are fixedly connected to the clamping rotating block 2531. A number of the limiting posts 2534 pass through the semi-circular sliding groove at the other end of the connecting block 2533 and are fixedly connected to the driven rotating block 2532.

[0039] The clamping rotating block 2531 is threadedly connected to the lead screw 254. Since the clamping rotating block 2531 can still rotate, when the lead screw 254 rotates, it drives the clamping rotating block 2531 to rotate. When the clamping rotating block 2531 and the driven rotating block 2532 mesh and rotate a certain angle, they fit and clamp. The clamping rotating block 2531 will linearly move on the lead screw 254 to clamp the part. When loosening, the clamping rotating block 2531 and the driven rotating block 2532 can be retracted into the guiding groove of the fixed base 241 to prevent the part from being affected during side machining. The connecting block 2533 is used to connect the clamping rotating block 2531 and the driven rotating block 2532, controlling the synchronous translation of the clamping rotating block 2531 and the driven rotating block 2532 without affecting rotation. The limiting post 2534 is used to fixedly connect the connecting block 2533.

[0040] The working principle of the present invention: The lateral movement assembly 8 controls the lateral movement of the base plate 21, the longitudinal movement assembly 4 controls the longitudinal movement of the milling cutter 7, the vertical lifting assembly 5 controls the lifting of the milling cutter 7, the flipping module 22 controls the flipping of the clamping module 24 to machine the side of the part, and the driving module 252 controls the rotation of the lead screw 254. When the lead screw 254 rotates forward, it first drives the clamping rotating block 2531 to rotate. After the clamping rotating block 2531 rotates and meshes with the driven rotating block 2532 at a certain angle and fits, the clamping rotating block 2531 can linearly move on the lead screw 254 to clamp the part. When the lead screw 254 rotates reversely, the clamping rotating block 2531 and the driven rotating block 2532 separate and are retracted into the guiding groove of the fixed base 241.

[0041] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A CNC milling machine with multi-faceted cutting function, characterized in that: The CNC milling machine comprises a workbench (1), a clamping module (2), a column (3), a longitudinal moving component (4), a vertical lifting component (5), a driving motor (6), a milling cutter (7) and a transverse moving component (8). The workbench (1) is placed on a plane, a transverse moving component (8) is arranged on the workbench (1), columns (3) are arranged at both ends of the workbench (1), the top ends of the two columns (3) are fixedly connected to the longitudinal moving component (4), the longitudinal moving component (4) is fixedly connected to the vertical lifting component (5), a driving motor (6) is arranged on the vertical lifting component (5), the driving motor (6) is fixedly connected to the milling cutter (7), and the clamping module (2) is fixedly connected to the transverse moving component (8).

2. A CNC milling machine with multi-faceted cutting function according to claim 1, characterized in that: The clamping module (2) comprises a base plate (21), a flip module (22), a support column (23), a clamping module (24) and an auxiliary positioning module (25); the base plate (21) is fixedly connected to the lateral moving assembly (8); support columns (23) are respectively provided at both ends of the base plate (21); the two support columns (23) are arranged opposite to each other; a connecting bracket is provided at the top of the support column (23); the connecting bracket of the support column (23) is rotatably connected to the clamping module (24); the flip module (22) is fixedly connected to the base plate (21); the flip module (22) is fixedly connected to the clamping module (24); and the clamping module (24) is connected to the auxiliary positioning module (25).

3. A CNC milling machine with multi-faceted cutting function according to claim 2, characterized in that: The flip module (22) comprises a support block (221), a flip motor (222), a worm (223), a worm wheel (224) and a gear box (225); the support block (221) is fixedly connected to the base plate (21); the flip motor (222) is fixedly connected to the support block (221); the gear box (225) is fixedly connected to the base plate (21); the gear box (225) is rotationally connected to the worm (223); one end of the worm (223) close to the flip motor (222) passes through the gear box (225) and is fixedly connected to the flip motor (222); the worm (223) and the worm wheel (224) are meshed and rotated; and the worm wheel (224) is fixedly connected to the clamping module (24).

4. A CNC milling machine with multi-faceted cutting function according to claim 3, characterized in that: The clamping module (24) comprises a fixed base (241), a fixed block (242), a flip boss (243), a fastening module (244) and a connecting column (245). The two ends of the fixed base (241) are respectively provided with fixed blocks (242). The two fixed blocks (242) are placed opposite to each other. The fixed blocks (242) are fixedly connected to the fastening module (244). A plurality of flip bosses (243) are arranged at the bottom of the fixed base (241). The flip bosses (243) are rotatably connected to the connecting bracket of the support column (23). A connecting column (245) is arranged on the flip boss (243) near one end of the worm gear (224). One end of the connecting column (245) passes through the connecting bracket of the support column (23) and the gear box (225) in sequence. The connecting column (245) is fixedly connected to the worm gear (224).

5. The CNC milling machine with multi-faceted cutting function according to claim 4, characterized in that: The auxiliary positioning module (25) comprises a mounting block (251), a driving module (252), a clamping assembly (253), a screw rod (254) and a guide rod (255); a guide groove is provided on the fixed base (241); a mounting block (251) is arranged on the guide groove of the fixed base (241); the guide groove of the fixed base (241) is slidably connected to the clamping assembly (253); mounting bosses are respectively provided at both ends of the fixed base (241); the fixed base (241) is rotatably connected to the screw rod (254) via the mounting bosses; the fixed base (241) is 1) The drive module (252) is fixedly connected to the fixed base (241) through the mounting boss, the mounting block (251) is rotatably connected to the screw rod (254), the mounting block (251) is fixedly connected to the guide rod (255), the screw rod (254) is provided with a clamping assembly (253) at both ends, the clamping assembly (253) is slidably connected to the guide rod (255), one end of the screw rod (254) is fixedly connected to the drive module (252), and the threads at both ends of the screw rod (254) are rotated in opposite directions.

6. The CNC milling machine with multi-faceted cutting function according to claim 4, characterized in that: The fastening module (244) comprises a clamping cylinder (2441) and a fastening block (2442); the clamping cylinder (2441) is fixedly connected to the fixing block (242); the telescopic end of the clamping cylinder (2441) passes through the fixing block (242) and is fixedly connected to the fastening block (2442).

7. The CNC milling machine with multi-faceted cutting function according to claim 5, characterized in that: The driving module (252) comprises a clamping motor (2521), a driving gear (2522), a driven gear (2523) and a transmission box (2524); the clamping motor (2521) is fixedly connected to the fixed base (241); the transmission box (2524) is fixedly connected to the mounting boss of the fixed base (241); the output end of the clamping motor (2521) passes through the transmission box (2524) and is fixedly connected to the driving gear (2522); the driving gear (2522) and the driven gear (2523) are meshed and rotated; and the end of the lead screw (254) close to the driven gear (2523) passes through the transmission box (2524) and is fixedly connected to the driven gear (2523).

8. The CNC milling machine with multi-faceted cutting function according to claim 5, characterized in that: The clamping assembly (253) comprises a clamping rotating block (2531), a driven rotating block (2532), a connecting block (2533) and a limiting column (2534); the clamping rotating block (2531) is provided with a threaded hole, the clamping rotating block (2531) is threadedly connected to the screw rod (254) through the threaded hole, when the clamping rotating block (2531) rotates counterclockwise, the screw rod (254) controls the clamping rotating block (2531) to clamp inwardly, the driven rotating block (2532) is provided with a through hole, the driven rotating block (2532) is slidably connected to the guide rod (255) through the through hole, the connecting surfaces of the clamping rotating block (2531) and the driven rotating block (2532) are respectively evenly distributed with a plurality of gear teeth along the circumferential direction, the gear teeth are arranged in a gear-like shape and the tooth angle is 90°, the clamping rotating block (25 31) and the driven rotating block (2532) are connected by gear meshing, the connecting block (2533) is in contact with the clamping rotating block (2531) away from the mounting block (251), the connecting block (2533) is in contact with the driven rotating block (2532), both ends of the connecting block (2533) are respectively provided with avoidance holes, the screw rod (254) and the guide rod (255) respectively pass through the avoidance holes at both ends of the connecting block (2533), both ends of the connecting block (2533) are respectively provided with semicircular grooves, a plurality of the limiting columns (2534) pass through the semicircular groove at one end of the connecting block (2533) and are fixedly connected to the clamping rotating block (2531), and a plurality of the limiting columns (2534) pass through the semicircular groove at the other end of the connecting block (2533) and are fixedly connected to the driven rotating block (2532).

Images