Multifunctional boring and milling cutter disc

Abstract

The utility model relates to the technical field of cutting machining, in particular to a multifunctional boring and milling cutter disc. The multifunctional boring and milling cutter disc comprises a cutter disc main body, and an axis around which the cutter disc main body rotates is defined as a central axis during cutting operation. A mounting hole for mounting a milling cutter is formed in the cutterhead main body, the axis of the mounting hole is parallel to the central axis, a distance is formed between the axis of the mounting hole and the central axis, and a fastener for fixing the milling cutter is arranged on the cutterhead main body. And a boring cutter mounting position is arranged on the edge of the cutter head main body. The milling cutter and the boring cutter can share the same cutter head, so that the applicability of the cutter head is improved, and the manufacturing cost of the cutter head is reduced. In addition, by accurately adjusting the cutting angle of the milling cutter and the cutting size of the boring cutter, the machining precision of cutting can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of cutting processing, and in particular to a multifunctional boring and milling cutter disc. Background Art

[0002] In today's mechanical processing field, cutting tools usually play an important role. In 3C electronics, military industry and automobile industry, cutting tools are usually needed to process some difficult-to-process metal materials and non-metal materials to meet the process requirements.

[0003] Cutting refers to the use of cutting tools to cut off the excess machining allowance on the workpiece blank to obtain a certain size, shape, position accuracy and surface quality. Cutting is generally divided into milling, boring, turning, grinding, sawing, etc. according to process characteristics.

[0004] A milling cutter is a tool used for milling, with one or more teeth. When working, each tooth cuts off the excess of the workpiece intermittently in sequence. Milling cutters are mainly used to process planes, steps, and formed surfaces. A boring cutter is a type of boring tool with one or two cutting parts. It is mainly used to process existing holes and can also process the outer circle of the end face.

[0005] However, when using a milling cutter to process a workpiece, when the product's processing accuracy is high, the milling cutter's cutting angle also has high accuracy requirements, and different products have different cutting angle requirements. Boring cutters and milling cutters are usually installed with different cutter heads, and the cutter heads need to be replaced frequently during use, which is inconvenient to operate, and the manufacturing costs of the tool and cutter head will also increase accordingly. These problems are currently in urgent need of resolution. Utility Model Content

[0006] In view of this, the present application provides a multifunctional boring and milling cutter disc, which aims to enable a boring cutter and a milling cutter to share the same cutter disc to reduce the manufacturing cost of the cutter disc, and to facilitate the adjustment of the cutting angle of the milling cutter to achieve the multifunctional effect of the cutter disc.

[0007] A multifunctional boring and milling cutter disc provided in the present application includes a cutter disc main body, and it is defined that when performing a cutting operation, the axis around which the cutter disc main body rotates is the central axis; a mounting hole is provided on the cutter disc main body, and the mounting hole is used to install a milling cutter, and the axis of the mounting hole is parallel to the central axis and has a spacing therebetween; a fastener for fixing the milling cutter is provided on the cutter disc main body; a boring cutter mounting position is provided on the edge of the cutter disc main body, and the boring cutter mounting position is used to install a boring cutter.

[0008] In a possible implementation, the fastener includes a fastening screw, the fastening screw is passed through the cutter head body, and the fastening screw is used to tighten the milling cutter in the mounting hole.

[0009] In a possible embodiment, one side of the cutter disc body is defined as a tool assembly side. When the milling cutter is installed in the mounting hole, one end of the milling cutter used for cutting passes through to the tool assembly side of the cutter disc body. A connecting shaft is connected to the side of the cutter disc body away from the tool assembly side. The connecting shaft is used to connect to a tool handle, and the axis of the connecting shaft is the center axis.

[0010] In a possible implementation manner, a first connecting block and a second connecting block are connected to the cutter head body, and the first connecting block and the second connecting block are symmetrically arranged about the central axis;

[0011] The boring tool mounting position is located on the first connecting block, and the second connecting block is used for mounting a counterweight; or, both the first connecting block and the second connecting block are the boring tool mounting positions.

[0012] In a possible implementation manner, a first projection plane and a second projection plane perpendicular to each other are defined, the central axis is parallel to the first projection plane and the second projection plane, and the projections of the first connection block and the second connection block on the second projection plane overlap;

[0013] The first connecting block is provided with a first interfering inclined surface, and an extension line of a projection of the first interfering inclined surface on the first projection plane intersects with the central axis;

[0014] The first connecting block is detachably connected to the first mounting block, the first mounting block is provided with a second interfering inclined surface, the second interfering inclined surface is slidably fitted to the first interfering inclined surface, the first connecting block is connected to a locking member for locking the first mounting block, and the first connecting block is used to install a boring tool.

[0015] In a possible embodiment, a mounting groove is provided on the first connecting block, and the mounting groove extends to a side of the first connecting block away from the cutter disc body, and the mounting groove also extends to the tool assembly side, the first interference slope is the inner wall of the mounting groove, and the first mounting block is simultaneously attached to two inner walls in the mounting groove parallel to the first projection surface.

[0016] In a possible embodiment, the locking member includes a locking screw, which is passed through the first mounting block, and a threaded hole is formed on the first abutting inclined surface. The locking screw is threadedly connected to the threaded hole, and the head of the locking screw is pressed against the side of the first mounting block away from the cutter disc body. The first mounting block is provided with a clearance hole for the rod of the locking screw to pass through, and the inner diameter of the clearance hole is larger than the outer diameter of the rod of the locking screw.

[0017] In a possible implementation, the end of the first mounting block close to the tool assembly side is the installation position of the boring tool, and a stop screw is connected to the first connecting block, and the stop screw is used to tighten the end of the first mounting block away from the tool assembly side.

[0018] In a possible implementation manner, the second connecting block is detachably connected to a second mounting block, and the second mounting block is mounted on the second connecting block in the same manner as the first mounting block is mounted on the first connecting block;

[0019] The second connecting block is used for installing a counterweight; or, the second connecting block and the first connecting block are both the boring tool installation positions.

[0020] In a possible implementation, a plurality of dynamic balancing holes are formed on the tool assembly side of the cutter disc body, the plurality of dynamic balancing holes are arranged around the central axis, and a counterweight screw is installed in at least one of the dynamic balancing holes.

[0021] This application has the following beneficial effects:

[0022] The multifunctional boring and milling cutter disc of the present application sets the milling cutter at a position close to the central axis and adopts an eccentric design, so that the cutting angle of the milling cutter can be easily adjusted by rotating the milling cutter and fastening it with a fastener, thereby meeting the high-precision processing requirements of the product. The milling cutter and the boring cutter share the same cutter disc, thereby saving the manufacturing cost of the cutter disc.

[0023] The distance from the boring tool to the connecting shaft is adjustable, so the cutting size of the boring tool can be accurately adjusted, thereby improving the cutting accuracy of the boring tool to meet the processing of products with higher precision requirements, further improving the versatility of the cutter head.

[0024] The milling cutter is long, and the boring cutter and the counterweight cutter usually do not affect the work of the milling cutter, so when the milling cutter is used for cutting, it is not necessary to disassemble the boring cutter. It is only necessary to disassemble the milling cutter when the boring cutter is working, which improves the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the multifunctional boring and milling cutter disc of the embodiment of the present application.

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure of the multifunctional boring and milling cutter disc of the embodiment of the present application after being assembled with a milling cutter and a boring cutter.

[0027] Figure 3 It is a schematic diagram of an eccentric design of the milling cutter assembled on the cutter head body of an embodiment of the present application.

[0028] Figure 4 yes Figure 2Bottom view of .

[0029] Figure 5 , Figure 6 and Figure 7 Different types of PCD milling cutters are shown.

[0030] Figure 8 It is a front view of the multifunctional boring and milling cutter disc of the embodiment of the present application after being assembled with a milling cutter and a boring cutter.

[0031] Fig. 9 It is a schematic diagram of the three-dimensional structure of the multifunctional boring and milling cutter disc of the embodiment of the present application after being assembled with a milling cutter, a boring cutter and a tool handle.

[0032] Fig.10 It is a schematic diagram of the orientation of the first projection plane and the second projection plane defined in the embodiment of the present application.

[0033] Fig.11 It is a schematic three-dimensional structure diagram from another perspective of the multifunctional boring and milling cutter disc of the embodiment of the present application after being assembled with a milling cutter and a boring cutter.

[0034] Fig.12 yes Fig.11 Top view of the .

[0035] Fig.13 yes Fig.12 AA section view.

[0036] Main component symbols

[0037] Milling cutter 100

[0038] Milling cutter 101

[0039] Boring tool 200

[0040] Counterweight 300

[0041] Counterweight knife 301

[0042] Handle 400

[0043] Cutter body 1

[0044] Central axis 11

[0045] Mounting holes 12

[0046] Fastener 13

[0047] Fastening screw 131

[0048] Boring tool installation position 14

[0049] Tool assembly side 15

[0050] First scale line 16

[0051] Dynamic balancing hole 17

[0052] Counterweight screw 18

[0053] Connecting shaft 2

[0054] First connection block 3

[0055] Mounting slot 31

[0056] The first interference slope 311

[0057] Threaded hole 312

[0058] Locking piece 32

[0059] Locking screw 321

[0060] Stop screw 33

[0061] Second scale line 34

[0062] Second connection block 4

[0063] First installation block 5

[0064] The second interference slope 51

[0065] Make way hole 52

[0066] Accommodation slot 53

[0067] Second mounting block 6

[0068] First projection surface 7

[0069] Second projection surface 8

[0070] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0071] The following detailed description is merely exemplary in nature and is not intended to limit the present application or its application and / or use. It should be understood that there are a large number of variations. The detailed description will enable one of ordinary skill in the art to implement the exemplary embodiments of the present application without undue experimentation, and it should be understood that various changes or modifications may be made to the functions and structures described in the exemplary embodiments without departing from the scope of the present application as set forth in the appended claims.

[0072] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, and at least one means one, two or more, unless otherwise clearly and specifically defined.

[0073] Refer to the following Figures 1 to 13 , the specific implementation methods of this application are further described in detail.

[0074] Figure 1 It is a schematic diagram of the three-dimensional structure of the multifunctional boring and milling cutter disc of the embodiment of the present application. Figure 2 It is a schematic diagram of the three-dimensional structure of the multifunctional boring and milling cutter disc of the embodiment of the present application after being assembled with a milling cutter and a boring cutter.

[0075] Reference Figure 1 The multifunctional boring and milling cutter disc provided in the embodiment of the present application includes a cutter disc body 1, and it is defined that the axis around which the cutter disc body 1 rotates during cutting operation is a central axis 11. Specifically, in order to improve the dynamic balance performance of tool rotation, the cutter disc body 1 is cylindrical, and the axis of the cutter disc body 1 is the central axis 11.

[0076] Reference Figure 1 and Figure 2 The cutter head body 1 is provided with a mounting hole 12 for mounting a milling cutter 100. The milling cutter 100 has a milling cutter blade 101, and one end of the milling cutter 100 having the milling cutter blade 101 is located outside the mounting hole 12. In order to facilitate adjustment of the cutting angle of the milling cutter 100, the axis of the mounting hole 12 is parallel to the central axis 11 and has a spacing. The cutter head body 1 is provided with a fastener 13 for fixing the milling cutter 100.

[0077] Figure 3 Schematic diagram of the cutter head body 1 of the embodiment of the present application, in which the milling cutter 100 is assembled with an eccentric design. Figure 1 and Figure 2 As shown, Figure 3Point a is the center of the cutter head body 1, that is, the position of the central axis 11. Point b is the center of the mounting hole 12, that is, the center of the milling cutter 100. The distance that the axis of the mounting hole 12 deviates from the central axis 11 is x, and x can be 0.5 mm or other values, and the corresponding x value can be set according to actual needs.

[0078] When it is necessary to adjust the cutting angle of the milling cutter 100, loosen the fastener 13, and then rotate the milling cutter 100 so that the milling cutter 100 rotates a certain angle around its own axis in the mounting hole 12, and then use the fastener 13 to fasten the milling cutter 100 in the mounting hole 12 again, thereby completing the adjustment of the cutting angle of the milling cutter 100. Before and after the adjustment, the position and angle of the milling blade 101 of the milling cutter 100 relative to the central axis 11 are changed, thereby achieving different cutting effects. It should be noted that the cutting angle of the milling cutter 100, that is, the position and angle of the milling blade 101 relative to the central axis 11, can be adjusted according to the actual processing needs.

[0079] Reference Figure 2 In one embodiment, the fastener 13 includes a fastening screw 131, which is inserted into the cutter head body 1 and used to tighten the milling cutter 100 in the mounting hole 12. By rotating the fastening screw 131 in different directions, the milling cutter 100 can be fastened or disassembled. It should be noted that the fastener 13 can also be other detachable structures for fixing the milling cutter 100.

[0080] Figure 4 yes Figure 2 Bottom view of .

[0081] Reference Figure 4 In order to accurately calculate the rotation angle of the milling cutter 100 , a first scale line 16 is engraved on the cutter head body 1 , and the first scale line 16 is arranged around the mounting hole 12 .

[0082] Reference Figure 4 In order to improve the dynamic balance performance of the multifunctional boring and milling cutter during operation, a plurality of dynamic balance holes 17 are provided on the tool assembly side 15 of the cutter body 1. The plurality of dynamic balance holes 17 are arranged around the axis of the cutter body 1, and a weight screw 18 is installed in at least one dynamic balance hole 17. According to the dynamic balance monitoring situation, the dynamic balance adjustment is achieved by adjusting the weight screw 18 in different dynamic balance holes 17 to improve the cutting quality.

[0083] Figure 5 , Figure 6 and Figure 7 Different types of PCD milling cutters 100 are shown. When the product processing accuracy requirement is high, the following can be used: Figures 5 to 7Any PCD milling cutter 100 shown in the figure can be used to precisely adjust the cutting angle of the milling cutter 100. It should be noted that other types of milling cutters 100 can be selected according to actual processing requirements.

[0084] Figure 8 It is a front view of the multifunctional boring and milling cutter disc of the embodiment of the present application after being assembled with a milling cutter and a boring cutter. Fig. 9 It is a schematic diagram of the three-dimensional structure of the multifunctional boring and milling cutter disc of the embodiment of the present application after being assembled with a milling cutter, a boring cutter and a tool handle.

[0085] Reference Figure 8 , one side of the cutter head body 1 is defined as the tool assembly side 15. When the milling cutter 100 is installed on the cutter head body 1, the end of the milling cutter 100 used for cutting passes through the tool assembly side 15 of the cutter head body 1. The end of the milling cutter 100 used for cutting is also the end where the milling cutter blade 101 of the milling cutter 100 is located. The side of the cutter head body 1 away from the tool assembly side 15 is connected with a connecting shaft 2, and the axis of the connecting shaft 2 is the above-mentioned central axis 11. Specifically, the connecting shaft 2 is integrally formed with the cutter head body 1 to improve the connection strength between the connecting shaft 2 and the cutter head body 1.

[0086] Reference Figure 8 and Fig. 9 , the connecting shaft 2 is used to connect the tool handle 400. Specifically, the connecting shaft 2 can be fixed to the tool handle 400 by a collet, so that the cutter head body 1, the connecting shaft 2 and the tool handle 400 are coaxially arranged. During the cutting operation, the tool handle 400 is driven to rotate by the driving shaft, the tool handle 400 drives the connecting shaft 2 to rotate, and the connecting shaft 2 drives the cutter head body 1 to rotate.

[0087] Reference Figure 8 The edge of the cutter head body 1 is provided with a boring tool installation position 14, and the boring tool installation position 14 is used to install the boring tool 200. It should be noted that the boring tool installation position 14 refers to the position on the cutter head body 1 for installing the boring tool 200.

[0088] Reference Figure 8 In one embodiment, the cutter disc body 1 is connected with a first connecting block 3 and a second connecting block 4, and the first connecting block 3 and the second connecting block 4 are symmetrically arranged about the central axis 11. Specifically, the cutter disc body 1, the first connecting block 3 and the second connecting block 4 are integrally formed, so that the connection strength between the first connecting block 3, the second connecting block 4 and the cutter disc body 1 is improved. The boring tool mounting position 14 is located on the first connecting block 3. The second connecting block 4 is used to install a counterweight 300, and the counterweight 300 is used to balance the boring tool 200 when the cutting process is performed, so that the overall center of gravity of the cutter disc is maintained on the central axis 11. In one embodiment, the counterweight 300 is a counterweight tool 301.

[0089] Fig.10It is a schematic diagram of the orientation of the first projection plane and the second projection plane defined in the embodiment of the present application.

[0090] Reference Fig.10 In order to accurately describe the installation method of the boring tool 200, a first projection plane 7 and a second projection plane 8 are defined to be perpendicular to each other, and the axis of the connecting shaft 2 is parallel to the first projection plane 7 and the second projection plane 8 respectively.

[0091] The first projection plane 7 is the projection plane of the front view. Figure 8 That is, it is a front view of the multifunctional boring and milling cutter head after the milling cutter 100 is assembled. The second projection plane 8 is a viewing plane of the side view, and the projections of the first connecting block 3 and the second connecting block 4 on the second projection plane 8 overlap.

[0092] Fig.11 It is a three-dimensional structural schematic diagram from another perspective of the multifunctional boring and milling cutter disc of the embodiment of the present application after the milling cutter 100 and the boring cutter 200 are assembled. Fig.12 yes Fig.11 Top view of the . Fig.13 yes Fig.12 AA section view.

[0093] Reference Fig.11 , Fig.12 and Fig.13 The first connecting block 3 and the second connecting block 4 have the same structure, that is, the boring tool 200 and the counterweight tool 301 are installed in the same manner.

[0094] Reference Fig.10 , Fig.11 and Fig.13 , this embodiment is described by taking the first connecting block 3 as an example. In order to facilitate the adjustment of the cutting size of the boring tool 200, a mounting groove 31 is provided on the first connecting block 3, and the mounting groove 31 penetrates to the side of the first connecting block 3 away from the cutter head body 1, and the mounting groove 31 also penetrates to the side of the first connecting block 3 close to the tool assembly side 15. One of the inner walls of the mounting groove 31 is a first interference slope 311, and the first interference slope 311 is perpendicular to the first projection plane 7, and the first interference slope 311 intersects with the second projection plane 8. The projection extension line of the first interference slope 311 on the first projection plane 7 intersects with the axis of the connecting shaft 2, and the distance between the first interference slope 311 and the axis of the connecting shaft 2 gradually decreases in the direction away from the connecting shaft 2.

[0095] Reference Fig.10 , Fig.11 and Fig.13The first mounting block 5 is inserted into the mounting groove 31, and the first mounting block 5 is provided with a second interfering inclined surface 51, which is slidably fitted with the first interfering inclined surface 311. The first mounting block 5 is also fitted with two inner walls in the mounting groove 31 that are parallel to the first projection surface 7. The first mounting block 5 is used to mount the boring tool 200, and specifically, the boring tool 200 can be fixed to the first mounting block 5 by screws.

[0096] By sliding the first connecting block 3 to make the second interfering inclined surface 51 slide relative to the first interfering inclined surface 311 , the distance between the boring tool 200 and the axis of the connecting shaft 2 can be adjusted, thereby adjusting the cutting size of the boring tool 200 .

[0097] Reference Fig.10 , Fig.11 and Fig.13 In order to lock the first mounting block 5, a locking member 32 for locking the first mounting block 5 is connected to the first connecting block 3. Specifically, the locking member 32 includes a locking screw 321. A clearance hole 52 is provided on the first mounting block 5, and the axis of the clearance hole 52 is perpendicular to the second projection surface 8. The rod of the locking screw 321 is inserted into the clearance hole 52, and there is a distance between the rod of the locking screw 321 and the inner wall of the clearance hole 52, that is, the inner diameter of the clearance hole 52 is greater than the outer diameter of the rod thread of the locking screw 321. It should be understood that the cross-sectional shape of the clearance hole 52 may not be limited to a circular hole, for example, the cross-sectional shape of the clearance hole 52 may also be a waist-shaped hole. The head of the locking screw 321 is pressed against the side of the first mounting block 5 away from the cutter head body 1. A threaded hole 312 is provided on the first contact inclined surface 311, and the rod of the locking screw 321 is threadedly connected in the threaded hole 312. A receiving groove 53 for receiving the head of the locking screw 321 is formed on a side of the first mounting block 5 facing away from the cutter head body 1 .

[0098] Reference Fig.11 In order to accurately calculate the adjustment distance of the boring tool 200 , a second scale line 34 is engraved on the side of the first connecting block 3 facing away from the cutter head body 1 .

[0099] Reference Fig.11 and Fig.13, a stop screw 33 is connected to the first connecting block 3, and the stop screw 33 is used to tighten the end of the first mounting block 5 away from the tool assembly side 15. The stop screw 33 is threadedly connected to the first connecting block 3. On the one hand, when the boring tool 200 is performing a cutting operation, the stop screw 33 can avoid the boring tool 200 from causing a slight movement due to the cutting resistance as much as possible, so that the position of the boring tool 200 can be relatively stable, thereby improving the cutting quality. On the other hand, when it is necessary to adjust the position of the boring tool 200, by slightly loosening the locking screw 321, and then turning the stop screw 33, the stop screw 33 can push the first mounting block 5 to slide, and refer to the second scale line 34. When the first connecting block 3 slides a specified distance, tighten the locking screw 321 again to complete the cutting size adjustment of the boring tool 200.

[0100] Reference Fig.11 It should be understood that the second connection block 4 is connected to the second mounting block 6, and the second mounting block 6 is used to mount the counterweight knife 301. The mounting method of the second mounting block 6 on the second connection block 4 is the same as the mounting method of the first mounting block 5 on the first connection block 3.

[0101] It should be further explained that, in other embodiments, the boring tool 200 can be installed on both the first connection block 3 and the second connection block 4 in the present application, and can be selected and adapted accordingly according to different application scenarios. For example, when the boring tool 200 is used to process the side of the workpiece, the boring tool 200 is installed on the first connection block 3, and the counterweight tool 301 is installed on the second connection block 4. When the boring tool 200 is used to process the bottom plane of the workpiece, the boring tool 200 can be installed on both the first connection block 3 and the second connection block 4.

[0102] The embodiment of the present application makes the boring cutter 200 and the milling cutter 100 share the same cutter disc, and can be assembled on a conventional tool holder 400 through the connecting shaft 2, so that the cutter disc has a wider application range during cutting processing, does not need to be frequently replaced, and also reduces the manufacturing cost of the cutter disc. In addition, by accurately adjusting the cutting angle of the milling cutter 100 and the cutting size of the boring cutter 200, the cutting processing accuracy can be improved to meet the processing of products with higher precision requirements.

[0103] In the above, the specific implementation of the present application is described with reference to the accompanying drawings. However, those skilled in the art will appreciate that various changes and substitutions may be made to the specific implementation of the present application without departing from the spirit and scope of the present application. These changes and substitutions are all within the scope defined by the present application.

Claims

1. A multifunctional boring and milling cutter head, characterized in that: It includes a cutter disc main body, and it is defined that when performing a cutting operation, the axis around which the cutter disc main body rotates is the central axis; a mounting hole is opened on the cutter disc main body, and the mounting hole is used to install a milling cutter, and the axis of the mounting hole is parallel to the central axis and has a spacing, and a fastener for fixing the milling cutter is arranged on the cutter disc main body; a boring tool mounting position is arranged on the edge of the cutter disc main body, and the boring tool mounting position is used to install a boring tool.

2. The multifunctional boring and milling cutter disc according to claim 1, characterized in that: The fastener comprises a fastening screw, the fastening screw is passed through the cutter head body, and the fastening screw is used to tighten the milling cutter in the mounting hole.

3. The multifunctional boring and milling cutter disc according to claim 1, characterized in that: One side of the cutter disc body is defined as the tool assembly side. When the milling cutter is installed in the mounting hole, the end of the milling cutter used for cutting passes through the tool assembly side of the cutter disc body. A connecting shaft is connected to the side of the cutter disc body away from the tool assembly side. The connecting shaft is used to connect to the tool handle, and the axis of the connecting shaft is the center axis.

4. The multifunctional boring and milling cutter disc according to claim 3, characterized in that: The cutter head body is connected with a first connecting block and a second connecting block, and the first connecting block and the second connecting block are symmetrically arranged about the central axis; The boring tool mounting position is located on the first connecting block, and the second connecting block is used for mounting a counterweight; or, both the first connecting block and the second connecting block are the boring tool mounting positions.

5. The multifunctional boring and milling cutter disc according to claim 4, characterized in that: A first projection plane and a second projection plane are defined to be perpendicular to each other, the central axis is parallel to the first projection plane and the second projection plane, and the projections of the first connection block and the second connection block on the second projection plane overlap; The first connecting block is provided with a first interfering inclined surface, and an extension line of a projection of the first interfering inclined surface on the first projection plane intersects with the central axis; The first connecting block is detachably connected to the first mounting block, the first mounting block is provided with a second interfering inclined surface, the second interfering inclined surface is slidably fitted to the first interfering inclined surface, the first connecting block is connected to a locking member for locking the first mounting block, and the first connecting block is used to install a boring tool.

6. The multifunctional boring and milling cutter disc according to claim 5, characterized in that: The first connecting block is provided with an installation groove, which extends to the side of the first connecting block away from the cutter disc body, and also extends to the tool assembly side. The first interference slope is the inner wall of the installation groove, and the first installation block is simultaneously attached to the two inner walls in the installation groove parallel to the first projection surface.

7. The multifunctional boring and milling cutter disc according to claim 6, characterized in that: The locking member includes a locking screw, which is passed through the first mounting block. A threaded hole is provided on the first abutting inclined surface. The locking screw is threadedly connected to the threaded hole. The head of the locking screw is pressed against the side of the first mounting block away from the cutter disc body. A clearance hole is provided on the first mounting block for the rod of the locking screw to pass through. The inner diameter of the clearance hole is larger than the outer diameter of the rod of the locking screw.

8. The multifunctional boring and milling cutter disc according to claim 7, characterized in that: The end of the first mounting block close to the tool assembly side is the mounting position of the boring tool, and the first connecting block is connected with a stop screw, and the stop screw is used to tighten the end of the first mounting block away from the tool assembly side.

9. The multifunctional boring and milling cutter disc according to any one of claims 5 to 8, characterized in that: The second connecting block is detachably connected to a second mounting block, and the mounting method of the second mounting block on the second connecting block is the same as the mounting method of the first mounting block on the first connecting block; The second connecting block is used for installing a counterweight; or, the second connecting block and the first connecting block are both the boring tool installation positions.

10. The multifunctional boring and milling cutter disc according to claim 3, characterized in that: A plurality of dynamic balancing holes are provided on the tool assembly side of the cutter disc body. The plurality of dynamic balancing holes are arranged around the central axis, and a counterweight screw is installed in at least one of the dynamic balancing holes.

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