A multi-surface machining modular milling cutter

Abstract

This application belongs to the field of milling cutter technology and discloses a multi-faceted machining combination milling cutter, including two discs. Multiple grooves are formed on the surface of the discs, and tool holders are inserted into the grooves. Two cutter bodies are mounted on the tool holders. A mounting mechanism is provided on the discs, including mounting components. The mounting components include three pins fixed to the tool holders and pins set on the cutter bodies. The discs have mounting holes for the pins to be inserted, and the tool holders have mounting slots for the pins to be inserted. This application achieves rapid positioning and insertion of the tool holders and cutter bodies by using the pins and pins in conjunction with the mounting holes and slots of the discs and tool holders. A locking component drives a fixed block and an arc-shaped block to move synchronously via a rotating ring. This locks the pins by engaging the rods with the arc-shaped slots and by pressing the locking pins into the locking slots of the pins, achieving synchronous locking of the pins and pins.

Description

Technical Field

[0001] This invention relates to the field of milling cutter technology, and in particular to a multi-faceted machining combination milling cutter. Background Technology

[0002] A milling cutter is a rotating multi-edged cutting tool used for milling in machining. It is the core cutting tool of milling machines and machining centers. It is usually made of high-speed steel or cemented carbide. The cutting teeth are distributed on the circumference, end face or side. During operation, it rotates at high speed with the spindle, and each cutting tooth cuts into the workpiece intermittently in sequence to remove the metal residue.

[0003] Multi-face machining combination milling cutters combine an integrated cutter body with multiple sets of multi-directional cutting edges to achieve composite machining of multiple faces and features of a workpiece in a single clamping.

[0004] Existing multi-faceted machining combination milling cutters generally use an assembly structure in which the tool holder and tool body are directly bolted to the cutter head. Tool disassembly and assembly require removing each bolt one by one, which is cumbersome and time-consuming. At the same time, the positions of the tool body and tool holder are relatively fixed after installation, and it is difficult to achieve synchronous and flexible radial distance adjustment of multiple tool holders and tool bodies. When machining workpieces of different sizes or when fine-tuning cutting parameters is required, it is not convenient to adjust the radial position of the cutting edge, resulting in poor adaptability. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a multi-faceted machining combination milling cutter.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a multi-faceted machining combination milling cutter, comprising two discs, the surface of each disc having multiple grooves, a cutter holder inserted into each groove, two cutter bodies mounted on each cutter holder, and a mounting mechanism on each disc, the mounting mechanism comprising mounting components, the mounting components comprising three pins fixed on the cutter holder and pins mounted on the cutter bodies, the discs having mounting holes for inserting the pins, the cutter holders having mounting slots for inserting the pins, and the mounting mechanism further comprising locking components for locking the multiple pins and pins and adjusting the position of the cutter holder.

[0007] By adopting the above technical solution, during the installation process, the pin can be inserted into the tool body, then the pin can be inserted into the mounting groove, and at the same time the pin rod on the surface of the tool holder can be inserted into the mounting hole. Finally, the pin rod and the pin are locked together by the locking component. The locking component can also adjust the radial position of the tool holder to improve its applicability.

[0008] Furthermore, the pin includes an insertion section and a clamping section. The blade body has an auxiliary hole for the insertion section to be inserted into. The clamping section fits against the inner wall of the auxiliary hole. The clamping section has a conical structure and its conical surface is provided with anti-slip protrusions.

[0009] By adopting the above technical solution, when installing the tool body, the insertion section of the pin passes through the auxiliary hole on the surface of the tool body and is inserted into the mounting groove. Subsequently, the clamping section presses against the inner wall of the auxiliary hole on the surface of the tool body, and the anti-slip protrusions improve the stability during clamping. Furthermore, both discs have mounting grooves on their surfaces, and the lower end of the pin has a U-shaped groove. The locking component includes a rotating ring rotatably connected in the mounting groove, multiple fixing blocks fixed on the rotating ring, and a rod rotatably connected in the U-shaped groove at the lower end of the pin. The surface of the fixing block has an arc-shaped groove 1 and an arc-shaped groove 2 that are rollably connected to the rod. The inner wall of the disc has multiple sliding holes, and the surface of the tool holder has a through hole that communicates with the mounting groove. The locking component also includes a locking pin that is slidably connected to the sliding hole and passes through the through hole, a ball head fixed at the lower end of the locking pin, and multiple arc-shaped blocks 1 fixed on the rotating ring. The arc-shaped groove 1 is concentric with the rotating ring and the disc, and the arc-shaped groove 2 is eccentric with the rotating ring and the disc. The surface of the pin has a locking groove for the locking pin to be inserted. The locking component also includes a stabilizing component for fitting the tool holder and a locking component for locking the two rotating rings.

[0010] By adopting the above technical solution, during locking, rotating the rotating ring can drive multiple fixed blocks and arc-shaped block one to rotate. When the rod is inserted into the arc-shaped groove one on the surface of the fixed block, the pin can be locked. At the same time, arc-shaped block one can squeeze the locking pin, and the locking pin can be inserted into the locking groove on the surface of the pin to achieve synchronous locking operation. The locking assembly can lock and position the two rotating rings. When the rotating ring continues to rotate, the rod can enter the arc-shaped groove two, thereby adjusting the radial position of the rod, pin and tool holder.

[0011] Furthermore, a shaft is fixedly connected to the inner side of the two discs, and a tool holder is installed at one end of the shaft. The discs, shafts, and tool holders are coaxially arranged.

[0012] By adopting the above technical solution, the tool holder can assemble the shaft and the disc body on the equipment, thereby controlling the rotation of the shaft and the disc body.

[0013] Furthermore, a return spring is sleeved on the surface of the locking pin, and the two ends of the return spring are respectively fixed between the ball head and the inner wall of the sliding hole.

[0014] By adopting the above technical solution, the reset spring can drive the locking pin and the ball head to reset.

[0015] Furthermore, the stabilizing component includes a toothed plate disposed in the groove, a slide rod fixed below the toothed plate, and multiple arc-shaped blocks fixed on the rotating ring. The lower surface of the tool holder is provided with a toothed groove that meshes with the toothed plate. The slide rod passes through the disc body and is slidably connected to the disc body. The lower end of the slide rod extends into the assembly groove.

[0016] By adopting the above technical solution, during the adjustment process of the tool holder, the rotating ring can drive the arc-shaped block to squeeze the slide rod, and the slide rod can drive the toothed plate to fit tightly against the tool holder. At the same time, the toothed plate fits against the lower surface of the tool holder. After the tooth groove on the lower surface of the tool holder meshes with the toothed plate, the stability can be further improved.

[0017] Furthermore, a second return spring is sleeved on the surface of the slide rod, and the two ends of the second return spring are respectively fixed between the toothed plate and the inner wall of the disc.

[0018] By adopting the above technical solution, the second reset spring can drive the toothed plate and slide bar to reset, while improving the stability of the toothed plate.

[0019] Furthermore, the surface of the shaft has two grooves, and the locking assembly includes two connecting plates fixed between two rotating rings, a screw fixed in the groove, a nut threaded to the screw, and an anti-slip washer sleeved on the screw and located below the nut. The connecting plates are located in the groove, and the surface of the connecting plates has an oblong hole for the screw to pass through.

[0020] By adopting the above technical solution, the connecting plate can drive the two rotating rings to rotate synchronously. At this time, the screw moves in the oblong hole. After the adjustment is completed, the nut can be rotated, and the nut drives the anti-slip washer to press against the connecting plate, thereby locking the two rotating rings.

[0021] Furthermore, the installation mechanism also includes a positioning component for initial positioning of the pin. The positioning component includes a positioning rod that is slidably connected to the inner wall of the pin and a positioning spring fixed between the positioning rod and the inner wall of the pin. The inner wall of the installation groove is provided with a slot for the positioning rod to be inserted, and the upper end of the positioning rod has an arc structure.

[0022] By adopting the above technical solution, when the pin is inserted into the mounting slot, the positioning rod is aligned with the slot, and the positioning spring releases its elastic force, which can push the positioning rod into the slot to achieve initial positioning of the pin and the cutter body.

[0023] Furthermore, the slot has a V-shaped structure, wherein the included angle of the V-shape is greater than 120 degrees.

[0024] By adopting the above technical solution, the arc structure at the upper end of the positioning rod can be pressed against the inner side of the V-shaped slot, and the V-shaped angle is greater than 120 degrees, which can effectively reduce the force when the pin is pulled out.

[0025] In summary, the present invention has the following beneficial effects: 1. In this application, the tool holder and tool body are quickly positioned and inserted by means of the mounting holes and mounting slots of the plate body and the tool holder through the cooperation of the pin and the locking component. The locking component drives the fixed block and the arc block one to move synchronously through the rotation ring. It can lock the pin by the cooperation of the rod body and the arc groove one, and can also squeeze the locking pin into the locking groove of the pin by the arc block one, so as to realize the synchronous locking of the pin and the pin and improve the installation speed. At the same time, when the rotation ring rotates, the rod body can enter the arc groove two from the arc groove one, thereby adjusting the radial position of the rod body, the pin and the tool holder. The arc block one can squeeze the locking pin to always be inserted into the locking groove, which can be adapted to working conditions with different sizes and different processing requirements. 2. In this application, the positioning rod, positioning spring and V-shaped slot of the positioning component can initially position the pin and the blade body. The pin adopts a structure that combines the insertion section and the conical clamping section. The anti-slip protrusions enhance the clamping stability. At the same time, the included angle of the V-shaped slot is greater than 120 degrees, which can reduce the force when the pin is pulled out and facilitate the replacement of the blade body. 3. In this application, the locking assembly, through the cooperation of the connecting plate, screw, nut and anti-slip washer, can lock and position the two rotating rings simultaneously, further improving the stability of the overall structure. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 yes Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 yes Figure 1 Another structural diagram from a different perspective; Figure 4 This is a cross-sectional schematic diagram of an embodiment of the present invention to highlight the connection structure between the second reset spring and the toothed plate; Figure 5 This is a schematic diagram illustrating the connection structure between the toothed plate and the groove in an embodiment of the present invention; Figure 6 This is a cross-sectional schematic diagram of an embodiment of the present invention to highlight the connection structure between the locking pin and the sliding hole; Figure 7 yes Figure 6 Enlarged structural diagram at point B; Figure 8 This is an exploded view of an embodiment of the present invention to highlight the connection structure between the tool holder, the toothed plate, and the pin; Figure 9 This is a schematic diagram illustrating the connection structure between the rotating ring and the connecting plate in an embodiment of the present invention; Figure 10 This is a schematic diagram illustrating the connection structure between the fixing block, the first arc groove, and the second arc groove in an embodiment of the present invention. Figure 11This is a cross-sectional schematic diagram of an embodiment of the present invention to highlight the connection structure between the positioning rod and the pin; Figure 12 This is a cross-sectional schematic diagram of an embodiment of the present invention used to highlight the connection structure between the shaft and the disc.

[0027] In the diagram: 1. Tool holder; 2. Shaft; 3. Disc; 4. Groove; 5. Tool holder; 6. Tool body; 7. Mounting mechanism; 71. Mounting component; 711. Pin; 712. Insert pin; 72. Locking component; 721. Rotating ring; 722. Fixing block; 723. Rod; 724. Locking pin; 725. Ball head; 726. Arc-shaped block one; 727. Toothed plate; 728. Slide rod; 729. Arc-shaped block two; 7210. Connecting plate 7211, Screw; 7212, Nut; 7213, Anti-slip Washer; 73, Positioning Component; 731, Positioning Rod; 732, Positioning Spring; 8, Mounting Hole; 9, Mounting Slot; 10, Arc-shaped Slot One; 11, Arc-shaped Slot Two; 12, Sliding Hole; 13, Through Hole; 14, Snap Slot; 15, Assembly Slot; 16, Gear Groove; 17, Slot Body; 18, Waist-shaped Hole; 19, Return Spring One; 20, Return Spring Two; 21, Locking Slot. Detailed Implementation

[0028] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0029] like Figure 1-12 As shown in the illustration, this application discloses a multi-faceted machining combination milling cutter, including a disc body 3, a tool holder 5, a cutter body 6, a shaft 2, a tool shank 1, and a mounting mechanism 7. Two disc bodies 3 are provided, and multiple grooves 4 are formed on the surfaces of the two disc bodies 3, with the tool holder 5 inserted into the grooves 4. Two cutter bodies 6 are provided, and the cutter bodies 6 are mounted on the tool holder 5. The mounting mechanism 7 is provided on the disc body 3, and the mounting mechanism 7 includes a mounting component 71, a locking component 72, and a positioning component 73. The mounting component 71 includes a pin 711 and a pin 712. Three pins 711 are provided, and the three pins 711 are fixed to the tool holder 5. The pin 712 is provided on the cutter body 6. The disc body 3 has mounting holes 8 for inserting the pins 711, and the tool holder 5 has mounting grooves 9 for inserting the pins 712. During installation, the pin 712 can be inserted into the tool body 6, and then the pin 712 can be inserted into the mounting groove 9. At the same time, the pin 711 on the surface of the tool holder 5 can be inserted into the mounting hole 8. Finally, the pin 711 and the pin 712 are locked together by the locking component 72. The locking component 72 can also adjust the radial position of the tool holder 5 to improve its applicability.

[0030] The pin 712 includes an insertion section and a clamping section. An auxiliary hole is provided on the blade body 6 for inserting the insertion section. The clamping section fits against the inner wall of the auxiliary hole and has a tapered structure with anti-slip protrusions on its tapered surface (not shown in the figure). When installing the blade body 6, the insertion section of the pin 712 is passed through the auxiliary hole on the surface of the blade body 6 and inserted into the mounting groove 9. The clamping section then presses against the inner wall of the auxiliary hole on the surface of the blade body 6. The anti-slip protrusions improve the stability during clamping. Both disc bodies 3 have mounting grooves 15 on their surfaces, and the lower end of the pin 711 has a U-shaped groove. A locking component 72 is used to lock multiple pins 711 and pins 712, and to adjust the position of the tool holder 5. The locking component 72 includes a rotating ring 721, a fixing block 722, a rod 723, a locking pin 724, a ball head 725, an arc-shaped block 726, a stabilizing component, and a locking component. The rotating ring 721 is rotatably connected within the mounting groove 15. Multiple fixing blocks 722 are provided and fixed to the rotating ring 721. The rod 723 is rotatably connected within the U-shaped groove at the lower end of the pin 711. The surface of the fixing block 722 has an arc-shaped groove 10 and an arc-shaped groove 11 that roll over the rod 723. Multiple sliding holes 12 are provided on the inner wall of the disc body 3, and a through hole 13 communicating with the mounting groove 9 is provided on the surface of the tool holder 5. The locking pin 724 is slidably connected to the sliding hole 12 and passes through the through hole 13. The ball head 725 is fixed to the lower end of the locking pin 724. Multiple arc-shaped blocks 726 are provided, and multiple arc-shaped blocks 726 are fixed on the rotating ring 721. The arc-shaped groove 10 is concentrically arranged with the rotating ring 721 and the disc 3, and the arc-shaped groove 11 is eccentrically arranged with the rotating ring 721 and the disc 3. The surface of the pin 712 has a locking groove 21 for the locking pin 724 to be inserted. During locking, rotating the rotating ring 721 causes multiple fixed blocks 722 and arc-shaped blocks 726 to rotate. When the rod 723 is engaged in the arc-shaped groove 10 on the surface of the fixed block 722, the pin 711 is locked. At the same time, the arc-shaped block 726 can squeeze the locking pin 724, which can be inserted into the locking groove 21 on the surface of the pin 712, achieving synchronous locking. The locking assembly can lock and position the two rotating rings 721. When the rotating ring 721 continues to rotate, the rod 723 can enter the arc-shaped groove 11, thereby adjusting the radial position of the rod 723, the pin 711, and the tool holder 5.

[0031] Two discs 3 are fixedly connected to the inner sides of a shaft 2, and a tool holder 1 is installed at one end of the shaft 2. The discs 3, shafts 2, and tool holder 1 are coaxially arranged. The tool holder 1 can assemble the shaft 2 and the discs 3 onto the equipment, thereby controlling the rotation of the shaft 2 and the discs 3.

[0032] A return spring 19 is fitted onto the surface of the locking pin 724. The two ends of the return spring 19 are fixed between the ball head 725 and the inner wall of the sliding hole 12, respectively. The return spring 19 can drive the locking pin 724 and the ball head 725 to reset.

[0033] A stabilizing assembly is used to fit the tool holder 5. The stabilizing assembly includes a toothed plate 727, a slide rod 728, and an arc-shaped block 729. The toothed plate 727 is disposed within the groove 4, and the slide rod 728 is fixed below the toothed plate 727. The slide rod 728 passes through the disc body 3 and is slidably connected to it. The lower end of the slide rod 728 extends into the assembly groove 15. Multiple arc-shaped blocks 729 are provided and fixed to the rotating ring 721. The lower surface of the tool holder 5 has a toothed groove 16 that meshes with the toothed plate 727. During use, when the tool holder 5 is adjusted, the rotating ring 721 can drive the arc-shaped block 729 to press against the slide rod 728. The slide rod 728 can then drive the toothed plate 727 to press tightly against the tool holder 5. Simultaneously, the toothed plate 727 fits against the lower surface of the tool holder 5. After the toothed groove 16 on the lower surface of the tool holder 5 meshes with the toothed plate 727, stability is further improved.

[0034] A second return spring 20 is fitted onto the surface of the slide bar 728. The two ends of the second return spring 20 are fixed between the toothed plate 727 and the inner wall of the disc body 3, respectively. The second return spring 20 can drive the toothed plate 727 and the slide bar 728 to return to their original positions, while improving the stability of the toothed plate 727.

[0035] The shaft 2 has two grooves 17 on its surface. A locking assembly is used to lock the two rotating rings 721. The locking assembly includes a connecting plate 7210, a screw 7211, a nut 7212, and an anti-slip washer 7213. Two connecting plates 7210 are provided and fixed between the two rotating rings 721. The screw 7211 is fixed in the groove 17, and the nut 7212 is threadedly connected to the screw 7211. The anti-slip washer 7213 is sleeved on the screw 7211 and located below the nut 7212. The connecting plate 7210 is located in the groove 17, and its surface has an oblong hole 18 for the screw 7211 to pass through. The connecting plate 7210 can drive the two rotating rings 721 to rotate synchronously. At this time, the screw 7211 moves in the waist-shaped hole 18. After adjustment, the nut 7212 can be rotated. The nut 7212 drives the anti-slip washer 7213 to press against the connecting plate 7210, thereby locking the two rotating rings 721.

[0036] The positioning component 73 is used for initial positioning of the pin 712. The positioning component 73 includes a positioning rod 731 and a positioning spring 732. The positioning rod 731 is slidably connected to the inner wall of the pin 712, and the positioning spring 732 is fixed between the positioning rod 731 and the inner wall of the pin 712. The inner wall of the mounting groove 9 has a slot 14 for inserting the positioning rod 731, and the upper end of the positioning rod 731 has an arc structure. When the pin 712 is inserted into the mounting groove 9, and the positioning rod 731 is aligned with the slot 14, the positioning spring 732 releases its elastic force, which can push the positioning rod 731 into the slot 14, thereby achieving initial positioning of the pin 712 and the blade body 6.

[0037] The slot 14 has a V-shaped structure with an included angle greater than 120 degrees. The arc structure at the upper end of the positioning rod 731 can be pressed against the inner side of the V-shaped slot 14, with an included angle greater than 120 degrees, which can effectively reduce the force required to pull out the pin 712.

[0038] During assembly, the present invention first aligns the oblong hole 18 on the connecting plate 7210 with the screw 7211, places the connecting plate 7210 in the groove 17 on the surface of the shaft 2, then fits one of the discs 3 onto the shaft 2 and welds it in place, assembles the rotating ring 721 with the disc 3, and then assembles the other set of discs 3 and rotating rings 721 in the same way as the previous set. Finally, the connecting plate 7210 is welded to the two rotating rings 721 to complete the connection.

[0039] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A multi-faceted machining combination milling cutter, comprising two disc bodies (3), characterized in that: The surface of the disc (3) is provided with a plurality of grooves (4), and a tool holder (5) is inserted into the groove (4). Two tool bodies (6) are provided on the tool holder (5). The disc (3) is provided with an installation mechanism (7). The installation mechanism (7) includes an installation component (71). The installation component (71) includes three pins (711) fixed on the tool holder (5) and a pin (712) provided on the tool body (6). The disc (3) is provided with an installation hole (8) for inserting the pins (711). The tool holder (5) is provided with an installation groove (9) for inserting the pin (712). The installation mechanism (7) also includes a locking component (72) for locking the plurality of pins (711) and pins (712) and adjusting the position of the tool holder (5).

2. The multi-face machining combination milling cutter according to claim 1, characterized in that: The pin (712) includes an insertion section and a clamping section. The blade body (6) has an auxiliary hole for the insertion section to be inserted. The clamping section fits against the inner wall of the auxiliary hole. The clamping section has a conical structure and its conical surface is provided with anti-slip protrusions.

3. A multi-face machining combination milling cutter according to claim 2, characterized in that: The surfaces of both discs (3) are provided with assembly grooves (15), the lower end of the pin (711) is provided with a U-shaped groove, the locking component (72) includes a rotating ring (721) rotatably connected in the assembly groove (15), a plurality of fixing blocks (722) fixed on the rotating ring (721), and a rod (723) rotatably connected in the U-shaped groove at the lower end of the pin (711). The surface of the fixing block (722) is provided with an arc groove one (10) and an arc groove two (11) that are rotatably connected to the rod (723). The inner wall of the disc (3) is provided with a plurality of sliding holes (12), and the surface of the knife holder (5) is provided with a through hole (13) that communicates with the mounting groove (9). The locking component (72) also includes a locking pin (724) that is slidably connected to the sliding hole (12) and passes through the through hole (13), a ball head (725) fixed at the lower end of the locking pin (724), and a plurality of arc-shaped blocks (726) fixed on the rotating ring (721). The arc-shaped groove (10) is concentrically arranged with the rotating ring (721) and the disc (3), and the arc-shaped groove (11) is eccentrically arranged with the rotating ring (721) and the disc (3). The surface of the pin (712) is provided with a locking groove (21) for the locking pin (724) to be inserted. The locking component (72) also includes a stabilizing component for fitting the tool holder (5) and a locking component for locking the two rotating rings (721).

4. A multi-face machining combination milling cutter according to claim 3, characterized in that: The inner sides of the two discs (3) are fixedly connected with shafts (2), and a tool holder (1) is installed at one end of the shaft (2). The discs (3), shafts (2) and tool holder (1) are coaxially arranged.

5. A multi-face machining combination milling cutter according to claim 3, characterized in that: The locking pin (724) is fitted with a return spring (19), and the two ends of the return spring (19) are fixed between the ball head (725) and the inner wall of the sliding hole (12).

6. A multi-face machining combination milling cutter according to claim 3, characterized in that: The stabilizing component includes a toothed plate (727) disposed in the groove (4), a slide rod (728) fixed below the toothed plate (727), and multiple arc-shaped blocks (729) fixed on the rotating ring (721). The lower surface of the tool holder (5) is provided with a toothed groove (16) that meshes with the toothed plate (727). The slide rod (728) passes through the disc body (3) and is slidably connected to the disc body (3). The lower end of the slide rod (728) extends into the assembly groove (15).

7. A multi-face machining combination milling cutter according to claim 6, characterized in that: The slide bar (728) is fitted with a second return spring (20), and the two ends of the second return spring (20) are fixed between the toothed plate (727) and the inner wall of the disc (3).

8. A multi-faceted machining combination milling cutter according to claim 4, characterized in that: The shaft (2) has two grooves (17) on its surface. The locking assembly includes two connecting plates (7210) fixed between two rotating rings (721), a screw (7211) fixed in the groove (17), a nut (7212) threaded to the screw (7211), and an anti-slip washer (7213) sleeved on the screw (7211) and located below the nut (7212). The connecting plate (7210) is located in the groove (17), and the surface of the connecting plate (7210) has an oblong hole (18) through which the screw (7211) passes.

9. A multi-faceted machining combination milling cutter according to claim 1, characterized in that: The installation mechanism (7) further includes a positioning component (73) for initial positioning of the pin (712). The positioning component (73) includes a positioning rod (731) that is slidably connected to the inner wall of the pin (712) and a positioning spring (732) fixed between the positioning rod (731) and the inner wall of the pin (712). The inner wall of the installation groove (9) is provided with a slot (14) for the positioning rod (731) to be inserted. The upper end of the positioning rod (731) has an arc structure.

10. A multi-face machining combination milling cutter according to claim 9, characterized in that: The slot (14) has a V-shaped structure, wherein the included angle of the V-shape is greater than 120 degrees.

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