Indexable face milling cutter

Abstract

The invention provides an indexable face milling cutter which comprises a first milling cutter and a second milling cutter, and the first milling cutter and the second milling cutter are each of a disc structure. The first milling cutter is provided with a through hole along the axis. And the second milling cutter comprises a cutter bar and a cutter head which are integrally arranged. And the cutter bar penetrates into the through hole. The through hole is provided with a limiting circular ring, the cutter bar abuts against the limiting circular ring, and the limiting circular ring limits the second milling cutter. A locking bolt is arranged in the limiting circular ring in a penetrating mode, the locking bolt is screwed into a threaded hole formed in the cutter bar, and the first milling cutter and the second milling cutter are locked through the locking bolt. The first milling cutter and the second milling cutter are coaxially connected through the locking bolt, the first milling cutter and the second milling cutter remove materials at the same time in the machining process, the machining efficiency is high, the second milling cutter is connected into the through hole formed in the first milling cutter through the locking bolt, the connection stability is ensured, cutter vibration in the machining process is avoided, and the machining precision is improved. The machined surface roughness is ensured, and the surface quality is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical processing, and in particular relates to an indexable face milling cutter. Background Art

[0002] In mechanical processing, it is necessary to remove the excess material on the uneven surface of the blank in order to obtain a flat surface. This processing method is usually called plane cutting. In the process of plane cutting, in order to obtain higher cutting efficiency, the cutting volume is usually large, the tool will be subjected to greater cutting force, and the tool wear is greater. An indexable face milling cutter is a tool used for milling planes. When the blade installed on the indexable face milling cutter is worn, the blade can be indexed and the new cutting edge on the blade can be used for processing to reduce blade loss and reduce tool use costs. However, in the face milling process, in order to obtain good surface roughness, rough milling cutters and fine milling cutters are usually prepared, and the surface roughness is ensured through rough milling and fine milling processes. This method greatly restricts processing efficiency.

[0003] Therefore, the above problems need to be solved urgently. Summary of the invention

[0004] Purpose of the invention: In order to overcome the above shortcomings, the present invention provides an indexable face milling cutter, which performs face milling processing by coaxially connected double milling cutters, thereby improving cutting efficiency, reducing surface roughness and improving surface quality.

[0005] Technical solution: In order to achieve the above-mentioned purpose, the present invention provides an indexable face milling cutter, including a first milling cutter and a second milling cutter, both of which are set as disc structures. The first milling cutter is provided with a through hole along the axis. The second milling cutter includes a shank and a cutter disc, and the shank and the cutter disc are integrally arranged. The shank is inserted into the through hole. The through hole is provided with a limiting ring, and the shank and the limiting ring are in contact, and the limiting ring provides a limit for the second milling cutter. A locking bolt is inserted into the limiting ring, and the locking bolt is screwed into the threaded hole provided in the shank, and the locking bolt locks the first milling cutter and the second milling cutter. In the present invention, the first milling cutter and the second milling cutter are coaxially connected by a locking bolt, and the first milling cutter and the second milling cutter remove materials at the same time during the processing, and the processing efficiency is high. The second milling cutter is connected to the through hole provided by the first milling cutter by a locking bolt, so as to ensure the connection stability, avoid tool vibration during the processing, avoid the generation of knife marks, ensure the roughness of the processed surface, and improve the surface quality.

[0006] Furthermore, in the above-mentioned indexable face milling cutter, the through hole includes a tapered hole portion, a straight hole portion, and a countersunk portion. The small end of the tapered hole portion is connected to the straight hole portion, and a limiting ring is provided at the connection between the straight hole portion and the countersunk portion. The cutter disc and the tapered hole portion are correspondingly arranged, and the tool bar and the straight hole portion are correspondingly arranged. The cutter disc and the tapered hole portion are abutted, and the tool bar and the straight hole portion are abutted, so as to increase the contact area between the first milling cutter and the second milling cutter, disperse the local pressure, improve the connection stability, reduce wear during long-term use, extend the tool life, and reduce the tool cost.

[0007] Furthermore, in the above-mentioned indexable face milling cutter, the locking bolt includes a head and a column, the head and the column are coaxially arranged as a whole, and an annular groove is provided at one end of the column near the head. The countersunk head is provided with a slot, and a retaining ring is provided in the slot, the outer side of the retaining ring is clamped into the slot, and the inner side of the retaining ring is clamped into the annular groove. The locking bolt rotates around the retaining ring. When the locking bolt is turned, the locking bolt locks the arbor of the second milling cutter on the limiting ring, and the second milling cutter is retracted into the first milling cutter. At this time, the present invention is used in the face milling process, the first milling cutter performs cutting, and the second milling cutter does not perform cutting. When the locking bolt is turned in the opposite direction, since the locking bolt is clamped in the slot by the retaining ring, the locking bolt pushes the second milling cutter to extend out of the first milling cutter. At this time, when the present invention is used in the face milling process, the blank is first removed by the first milling cutter and then removed by the second milling cutter. For example: adjust the height difference between the second milling cutter and the first milling cutter to 0.5mm, perform rough machining, and cut to a depth of 1mm. At this time, the first milling cutter cuts 0.5mm, and the second milling cutter cuts 0.5mm. One milling removes 1mm of residual material. The first milling cutter and the second milling cutter cut 0.5mm respectively. Compared with ordinary disc milling cutters, the milling blade removes 1mm at a time. The milling blade in the present invention is subjected to less cutting force, which disperses the cutting force borne by a single blade, reduces blade wear, and increases the service life of the blade. When the height difference between the second milling cutter and the first milling cutter is adjusted to 0.2mm, the cutting depth is 1mm. At this time, the first milling cutter cuts 0.8mm, and the second milling cutter cuts 0.2mm. After the first milling cutter cuts, the second milling cutter cuts. Since the second milling cutter cuts less, a higher smoothness machining surface can be obtained. The present invention can adjust the height difference between the second milling cutter and the first milling cutter by a locking bolt to meet different milling requirements and improve machining efficiency.

[0008] Furthermore, in the above-mentioned indexable face milling cutter, the cutter bar and the through hole are connected by splines, and the splines are symmetrically arranged along the cutter bar. The cutter bar and the through hole are connected by splines to ensure that the first milling cutter and the second milling cutter rotate synchronously. When the locking bolt is rotated to adjust the second milling cutter, the second milling cutter slides along the splines to ensure the connection stability between the first milling cutter and the second milling cutter.

[0009] Furthermore, in the above-mentioned indexable face milling cutter, the locking bolt is provided with a through hole along the axis, the second milling cutter is provided with a countersunk through hole along the axis, the countersunk head of the countersunk through hole is provided on the side close to the cutter disc, and a connecting bolt is passed through the countersunk through hole. The connecting bolt passes through the countersunk through hole, and the connecting bolt passes through the through hole provided by the locking bolt. The connecting bolt connects the present invention and the tool handle, and the connecting bolt locks the second milling cutter. At this time, the second milling cutter is subjected to the bidirectional locking force of the locking bolt and the connecting bolt, thereby improving the connection strength, improving the structural strength, avoiding vibration during the milling process, and avoiding the generation of chatter marks.

[0010] Furthermore, in the above-mentioned indexable face milling cutter, a first cutter groove is provided on the outer periphery of the first milling cutter, and a first milling blade is connected to the first cutter groove by bolts. A second cutter groove is provided on the outer periphery of the cutter disc, and a second milling blade is connected to the second cutter groove by bolts. The rotary cutting diameter of the first milling blade is greater than the rotary cutting diameter of the second milling blade. The rotary cutting diameter of the first milling blade is greater than the rotary cutting diameter of the second milling blade, ensuring that the first milling blade cuts first and then the second milling blade cuts, which can reduce the cutting force borne by the milling blade, reduce the wear of the milling blade, and increase the service life of the tool compared to ordinary face milling cutters. At the same time, the first milling blade and the second milling blade have a stable height difference, so that the second milling blade is in a stable cutting state and bears a stable cutting force, further reducing the wear of the second milling blade and extending the service life of the second milling blade.

[0011] Furthermore, in the above-mentioned indexable face milling cutter, the first tool groove is provided with 2 or more around the axis of the first milling cutter. The second tool groove is provided with 2 or more around the axis of the cutter disc. The first milling cutter and the second milling cutter are provided with multiple tool grooves, and multiple blades can be installed, so that multiple blades participate in cutting, increase the cutting amount, improve the processing efficiency, disperse the cutting force, reduce the blade wear and workpiece deformation, improve the quality of the parts, and improve the quality of the processed surface roughness.

[0012] Furthermore, in the above-mentioned indexable face milling cutter, the first milling blade is set to be octagonal, the first cutting edge provided on the first milling blade is arranged along the periphery, the first chip groove is arranged adjacent to the first cutting edge, the first cutting edge includes a first bottom edge, a first secondary edge and a first side edge, the first bottom edge and the first side edge are connected by the first secondary edge, the first bottom edge is arranged horizontally, and the first side edge is arranged vertically. The first cutting edges are arranged on both sides of the first milling blade respectively. The first milling blade is set to be octagonal, which increases the contact area between the first milling blade and the first groove, disperses the cutting force, and improves the stability of the blade. During the cutting process, the first bottom edge, the first secondary edge and the first side edge are cut at the same time, which improves the cutting efficiency, and the horizontally arranged first bottom edge can improve the roughness quality of the machined surface. The vertically arranged first side edge can meet the requirements of precise cutting, and can perform straight-line cutting, such as end milling, and the vertical edge is conducive to smooth chip removal. The inclined first secondary edge can decompose the cutting force, reduce the impact on the blade during the cutting process, reduce the deformation of the workpiece, and improve the processing quality. When the first cutting edge is worn, rotate the first milling cutter and use the other cutting edges to continue processing. When the cutting edges on one side are worn, turn the cutter over and use the cutting edge on the other side to continue processing, thereby reducing the frequency of cutter replacement, improving cutter utilization, reducing tool costs, and reducing waste.

[0013] Furthermore, in the above-mentioned indexable face milling cutter, the second milling blade is set to be octagonal, the second cutting edge provided on the second milling blade is arranged along the periphery, a second chip groove is provided near the second cutting edge, the second cutting edge includes a second bottom edge, a second secondary edge and a second side edge, the second bottom edge and the second side edge are connected by the second secondary edge, the second bottom edge is arranged horizontally, and the second side edge is arranged vertically. The second cutting edges are arranged on both sides of the second milling blade. The horizontally arranged second bottom edge can improve the roughness quality of the machined surface. The vertically arranged second side edge can meet the requirements of precise cutting and can perform straight-line cutting, such as end milling, and the vertical edge is conducive to smooth chip removal. The inclined second secondary edge can decompose the cutting force, reduce the impact on the blade during the cutting process, reduce the deformation of the workpiece, and improve the processing quality. When the second cutting edge is worn, the second milling blade is rotated and the other cutting edges are used to continue processing. When the cutting edges on one side are all worn, the blade is turned over and the cutting edge on the other side is used to continue processing, thereby reducing the frequency of blade replacement, improving the utilization rate of the blade, reducing the cost of the tool, and reducing waste.

[0014] Furthermore, in the above-mentioned indexable face milling cutter, a mounting groove is provided on the side of the first milling cutter away from the cutter disc. The present invention is connected to the tool handle through the mounting groove, which is convenient to install and can be used for universal disc milling cutter handles, thereby improving the applicability of the tool.

[0015] It can be seen from the above technical scheme that the present invention has the following beneficial effects: the indexable face milling cutter of the present invention uses a locking bolt to connect the second milling cutter to the through hole provided in the first milling cutter, thereby ensuring the connection stability, avoiding tool vibration during processing, avoiding the generation of knife marks, ensuring the roughness of the processed surface, and improving the surface quality. The height difference between the second milling cutter and the first milling cutter can be adjusted by the locking bolt to meet different milling requirements and improve processing efficiency. Multiple tool grooves are provided, and multiple blades can be installed so that multiple blades can participate in cutting, increase the cutting amount, improve processing efficiency, disperse cutting force, reduce blade wear and workpiece deformation, improve part quality, and improve the quality of processed surface roughness. The blade is set to an octagonal shape, the cutting edges are set on both sides of the blade, and the bottom blade is set horizontally, which improves the roughness quality of the processed surface, reduces the frequency of blade replacement, improves blade utilization, and reduces tool costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the indexable face milling cutter of the present invention; Figure 2 is a cross-sectional view of the first milling cutter; Figure 3 is a cross-sectional view of the second milling cutter; Figure 4 is a schematic diagram of the structure of the first milling blade; Figure 5 This is a schematic diagram of the structure of the second milling blade.

[0017] In the figure: 1, first milling cutter, 2, second milling cutter, 11, through hole, 110, limiting ring, 111, tapered hole portion, 112, straight hole portion, 113, countersunk head, 1131, slot, 12, first slot, 13, first milling blade, 131, first cutting edge, 132, first chip groove, 1311, first bottom edge, 1312, first auxiliary edge, 1313, first side edge, 14, mounting groove , 21, tool rod, 211, countersunk through hole, 212, connecting bolt, 22, tool disc, 221, second tool groove, 222, second milling blade, 2221, second cutting edge, 22211, second bottom edge, 22212, second auxiliary edge, 22213, second side edge, 2222, second chip groove, 23, spline, 3, locking bolt, 31, head, 32, column, 321, annular groove. DETAILED DESCRIPTION

[0018] Example 1 like Figure 1-2A kind of indexable face milling cutter shown includes a first milling cutter 1 and a second milling cutter 2, and the first milling cutter 1 and the second milling cutter 2 are both set as disc structures. The first milling cutter 1 is provided with a through hole 11 along the axis. The second milling cutter 2 includes a tool rod 21 and a cutter disc 22, and the tool rod 21 and the cutter disc 22 are integrally arranged. The tool rod 21 passes through the through hole 11. The through hole 11 is provided with a limiting ring 110, and the tool rod 21 and the limiting ring 110 are abutted, and the limiting ring 110 provides a limit for the second milling cutter 2. A locking bolt 3 is passed through the limiting ring 110, and the locking bolt 3 is screwed into the threaded hole provided in the tool rod 21, and the locking bolt 3 locks the first milling cutter 1 and the second milling cutter 2. The through hole 11 includes a tapered hole portion 111, a straight hole portion 112, and a countersunk head portion 113. The small end of the tapered hole portion 111 is connected to the straight hole portion 112, and a limiting ring 110 is provided at the connection between the straight hole portion 112 and the countersunk head portion 113. The cutter head 22 and the tapered hole portion 111 are arranged accordingly, and the cutter bar 21 and the straight hole portion 112 are arranged accordingly. The locking bolt 3 is provided with a through hole along the axis, and the locking bolt 3 includes a head portion 31 and a column portion 32. The head portion 31 and the column portion 32 are coaxially arranged as a whole, and an annular groove 321 is provided at one end of the column portion 32 close to the head portion 31. The countersunk head portion 113 is provided with a clamping groove 1131, and a clamping ring is provided in the clamping groove 1131. The outer side of the clamping ring is clamped into the clamping groove 1131, and the inner side of the clamping ring is clamped into the annular groove 321. The locking bolt 3 rotates around the clamping ring. The first milling cutter 1 is provided with a first tool groove 12 on the outer periphery, and a first milling blade 13 is connected to the first tool groove 12 by bolts. A second cutter groove 221 is provided on the outer periphery of the cutter disc 22, and a second milling blade 222 is connected to the second cutter groove 221 by bolts. The rotation cutting diameter of the first milling blade 13 is greater than the rotation cutting diameter of the second milling blade 222. A mounting groove 14 is provided on the side of the first milling cutter 1 away from the cutter disc 22. Two or more first cutter grooves 12 are provided around the axis of the first milling cutter 1. Two or more second cutter grooves 221 are provided around the axis of the cutter disc 22.

[0019] In the present invention, the arbor 21 of the first milling cutter 1 is inserted into the through hole 11 of the second milling cutter 2, and the locking bolt 3 is screwed into the threaded hole provided in the arbor 21. The locking bolt 3 locks the first milling cutter 1 on the limiting ring 110. At this time, the second milling cutter 2 is retracted into the first milling cutter 1, and only the first milling cutter 1 is involved in cutting.

[0020] like Figure 3 In the indexable face milling cutter shown, the shank 21 and the through hole 11 are connected by a spline 23, and the spline 23 is symmetrically arranged along the shank 21. The second milling cutter 2 is provided with a countersunk through hole 211 along the axis, and the countersunk part of the countersunk through hole 211 is arranged on the side close to the cutter disc 22, and a connecting bolt 212 is penetrated in the countersunk through hole 211. The connecting bolt 212 penetrates into the countersunk through hole 211, and the connecting bolt 212 passes out from the through hole provided by the locking bolt 3. The connecting bolt 212 connects the present invention and the tool handle, and the connecting bolt 212 locks the second milling cutter 2. At this time, the second milling cutter 2 is subjected to the bidirectional locking force of the locking bolt 3 and the connecting bolt 212, thereby improving the connection strength and avoiding the generation of chatter marks.

[0021] like Figure 4 The indexable face milling cutter shown in the figure has a first milling blade 13 set to an octagonal shape, a first cutting edge 131 provided on the first milling blade 13 is arranged along the periphery, a first chip groove 132 is arranged adjacent to the first cutting edge 131, the first cutting edge 131 includes a first bottom edge 1311, a first secondary edge 1312 and a first side edge 1313, the first bottom edge 1311 and the first side edge 1313 are connected by the first secondary edge 1312, the first bottom edge 1311 is arranged horizontally, and the first side edge 1313 is arranged vertically. The first cutting edges 131 are respectively arranged on both sides of the first milling blade 13. The first milling blade 13 is set to an octagonal shape, which increases the contact area between the first milling blade 13 and the first groove 12, disperses the cutting force, and improves the stability of the blade. During the cutting process, the first bottom edge 1311, the first secondary edge 1312 and the first side edge 1313 are cut simultaneously, and the horizontally arranged first bottom edge 1311 can improve the roughness quality of the machined surface. The vertically arranged first side blade 1313 can meet the requirements of precise cutting and can perform straight-line cutting, such as end milling. The vertical blade is conducive to smooth chip removal. The inclined first secondary blade 1312 can decompose the cutting force and reduce the impact on the blade during the cutting process. When the first cutting edge 131 is worn, the first milling blade 13 is rotated and the other cutting edges are used to continue processing. When the cutting edges on one side are worn, the blade is turned over and the cutting edge on the other side is used to continue processing.

[0022] like Figure 5 The indexable face milling cutter shown in the figure has a second milling blade 222 set to an octagonal shape, a second cutting edge 2221 provided on the second milling blade 222 is arranged along the periphery, a second chip removal groove 2222 is provided adjacent to the second cutting edge 2221, the second cutting edge 2221 includes a second bottom edge 22211, a second secondary edge 22212 and a second side edge 22213, the second bottom edge 22211 and the second side edge 22213 are connected by the second secondary edge 22212, the second bottom edge 22211 is arranged horizontally, and the second side edge 22213 is arranged vertically. The second cutting edges 2221 are respectively arranged on both sides of the second milling blade 222. The horizontally arranged second bottom edge 22211 can improve the roughness quality of the machined surface. The vertically arranged second side edge 22213 can meet the requirements of precise cutting and can perform straight-line cutting, such as end milling, and the vertical edge is conducive to smooth chip removal. The inclined second secondary edge 22212 can decompose the cutting force and reduce the impact on the blade during the cutting process. When the second cutting edge 2221 is worn, the second milling blade 222 is rotated and the other cutting edges are used to continue processing. When the cutting edges on one side are all worn, the blade is turned over and the cutting edge on the other side is used to continue processing.

[0023] Example 2 The difference between this embodiment and embodiment 1 is that the locking bolt 3 is screwed in the reverse direction. Since the locking bolt 3 is clamped in the clamping groove 1131 by the clamping ring, the locking bolt 3 pushes the second milling cutter 2 to extend out of the first milling cutter 1, and the height difference between the second milling cutter 2 and the first milling cutter 1 is adjusted to 0.5mm. Rough processing is performed with a cutting depth of 1mm. At this time, the first milling cutter 1 cuts 0.5mm, and the second milling cutter 2 cuts 0.5mm. One milling removes 1mm of residual material.

[0024] Example 3 The difference between this embodiment and embodiment 1 is that the locking bolt 3 is turned in the opposite direction, and the locking bolt 3 pushes the second milling cutter 2 to extend out of the first milling cutter 1. When the height difference between the second milling cutter 2 and the first milling cutter 1 is adjusted to 0.2mm, the cutting depth is 1mm. At this time, the first milling cutter 1 cuts 0.8mm, and the second milling cutter 2 cuts 0.2mm. After the first milling cutter 1 cuts, the second milling cutter 2 cuts.

[0025] The above embodiments are exemplary, and their purpose is to illustrate the technical concept and features of the present invention so that people familiar with this field can understand the content of the present invention and implement it accordingly, and they cannot limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An indexable face milling cutter, characterized in that: The invention comprises a first milling cutter (1) and a second milling cutter (2), wherein the first milling cutter (1) and the second milling cutter (2) are both disc structures; the first milling cutter (1) is provided with a through hole (11) along the axis; the second milling cutter (2) comprises a cutter bar (21) and a cutter disc (22), wherein the cutter bar (21) and the cutter disc (22) are integrally arranged; the cutter bar (21) is inserted into the through hole (11); a limiting ring (110) is provided in the through hole (11), the cutter bar (21) and the limiting ring (110) are in contact with each other, and the limiting ring (110) provides limiting for the second milling cutter (2); a locking bolt (3) is inserted into the limiting ring (110), and the locking bolt (3) is screwed into a threaded hole provided in the cutter bar (21), and the locking bolt (3) locks the first milling cutter (1) and the second milling cutter (2).

2. The indexable face milling cutter according to claim 1, characterized in that: The through hole (11) comprises a tapered hole portion (111), a straight hole portion (112), and a countersunk portion (113); the small end of the tapered hole portion (111) is connected to the straight hole portion (112); the limiting ring (110) is arranged at the connection between the straight hole portion (112) and the countersunk portion (113); the cutter disc (22) and the tapered hole portion (111) are arranged correspondingly, and the cutter rod (21) and the straight hole portion (112) are arranged correspondingly.

3. The indexable face milling cutter according to claim 2, characterized in that: The locking bolt (3) comprises a head (31) and a column (32), the head (31) and the column (32) being coaxially arranged in one piece, and an annular groove (321) is provided at one end of the column (32) close to the head (31); the countersunk head (113) is provided with a clamping groove (1131), a clamping ring is provided in the clamping groove (1131), the outer side of the clamping ring is clamped into the clamping groove (1131), and the inner side of the clamping ring is clamped into the annular groove (321); the locking bolt (3) rotates around the clamping ring.

4. The indexable face milling cutter according to claim 2, characterized in that: The knife rod (21) and the through hole (11) are connected via a spline (23), and the spline (23) is symmetrically arranged along the knife rod (21).

5. The indexable face milling cutter according to claim 1, characterized in that: The locking bolt (3) is provided with a through hole along the axis, the second milling cutter (2) is provided with a countersunk through hole (211) along the axis, the countersunk head of the countersunk through hole (211) is provided on a side close to the cutter disc (22), and a connecting bolt (212) is passed through the countersunk through hole (211); the connecting bolt (212) passes through the countersunk through hole (211), and the connecting bolt (212) passes through the through hole provided in the locking bolt (3).

6. The indexable face milling cutter according to claim 1, characterized in that: The first milling cutter (1) is provided with a first cutter groove (12) on its outer periphery, and a first milling blade (13) is connected to the first cutter groove (12) via bolts; the cutter disc (22) is provided with a second cutter groove (221) on its outer periphery, and a second milling blade (222) is connected to the second cutter groove (221) via bolts; and the rotary cutting diameter of the first milling blade (13) is greater than the rotary cutting diameter of the second milling blade (222).

7. The indexable face milling cutter according to claim 6, characterized in that: Two or more of the first tool grooves (12) are provided around the axis of the first milling cutter (1); and two or more of the second tool grooves (221) are provided around the axis of the cutter disc (22).

8. The indexable face milling cutter according to claim 6, characterized in that: The first milling blade (13) is configured to be octagonal, the first milling blade (13) is provided with a first cutting edge (131) arranged along the periphery, a first chip removal groove (132) is provided adjacent to the first cutting edge (131), the first cutting edge (131) comprises a first bottom edge (1311), a first auxiliary edge (1312) and a first side edge (1313), the first bottom edge (1311) and the first side edge (1313) are connected via the first auxiliary edge (1312), the first bottom edge (1311) is arranged horizontally, and the first side edge (1313) is arranged vertically; the first cutting edges (131) are respectively arranged on both sides of the first milling blade (13).

9. The indexable face milling cutter according to claim 6, characterized in that: The second milling blade (222) is configured to be octagonal, the second milling blade (222) is provided with a second cutting edge (2221) arranged along the outer periphery, a second chip groove (2222) is provided adjacent to the second cutting edge (2221), the second cutting edge (2221) comprises a second bottom edge (22211), a second secondary edge (22212) and a second side edge (22213), the second bottom edge (22211) and the second side edge (22213) are connected via the second secondary edge (22212), the second bottom edge (22211) is arranged horizontally, and the second side edge (22213) is arranged vertically; the second cutting edges (2221) are respectively arranged on both sides of the second milling blade (222).

10. The indexable face milling cutter according to claim 1, characterized in that: A mounting groove (14) is provided on a side of the first milling cutter (1) away from the cutter disc (22).

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