Milling cutter disc

Abstract

The invention belongs to the technical field of cutters, and discloses a milling cutter disc which comprises a first cutter disc body, a second cutter disc body, a cutter clamp assembly and a first fixing assembly. The second cutterhead and the first cutterhead are coaxially arranged, the first cutterhead and the second cutterhead are detachably connected, and the first cutterhead and the second cutterhead are matched with each other to form a containing cavity extending in the first direction; the cutter holder assembly comprises a cutter holder, the cutter holder is clamped and fixed between the first cutter head and the second cutter head in the second direction, one end of the cutter holder is limited in the containing cavity and forms a first cutter holder part, and the other end of the cutter holder is located outside the first cutter head and the second cutter head and forms a second cutter holder part; the first fixing assembly is connected to the second cutter clamping part and abuts against at least one of the first cutter head and the second cutter head in the third direction so as to limit the second cutter clamping part to move relative to the first cutter head in the first direction. The facing cutter provided by the invention has relatively high universality and relatively low processing cost.

Description

Technical Field

[0001] This application relates to the field of cutting tool technology, and more particularly to a milling cutter head. Background Technology

[0002] An indexable milling cutter is a type of milling cutter used for milling operations. During operation, the milling cutter's teeth sequentially and intermittently remove the excess material from the workpiece.

[0003] In related technologies, indexable milling cutters typically include a cutter head and several inserts mounted on it. The cutter head is used for fixed connection to the machine tool. The cutter head for mounting the inserts has several grooves, in which at least a portion of the inserts are mounted, and a locking bolt secures the inserts to the cutter head, improving connection strength. However, the position of the inserts on the cutter head is fixed. To achieve different numbers of teeth or different tooth pitches, a different size cutter head is required, resulting in low flexibility and increased machining costs. Summary of the Invention

[0004] The purpose of this application is to provide a milling cutter head to solve the technical problems of low flexibility and high processing cost in the prior art.

[0005] Based on the above concept, the technical solution adopted in this application is:

[0006] Milling cutter head, including:

[0007] First cutting head;

[0008] The second cutter head is coaxially arranged with the first cutter head. The first cutter head and the second cutter head are detachably connected. The first cutter head and the second cutter head cooperate with each other to form a receiving cavity extending along the first direction.

[0009] A blade clamp assembly includes a blade clamp, which is clamped and fixed between a first blade disc and a second blade disc along a second direction, with one end of the blade clamp confined within the receiving cavity and forming a first blade clamp portion, and the other end of the blade clamp located outside the first blade disc and the second blade disc and forming a second blade clamp portion;

[0010] A first fixing component is connected to the second tool holder and abuts against at least one of the first tool disc and the second tool disc in a third direction to restrict the movement of the second tool holder relative to the first tool disc in the first direction;

[0011] Wherein, the first direction is the circumferential direction of the first cutter head, the second direction is the height direction of the cutter clip, and the third direction is the length direction of the cutter clip.

[0012] In one embodiment, the tool holder further includes a connecting portion connected between the first tool holder portion and the second tool holder portion; the connecting portion is clamped and fixed between the first tool disc and the second tool disc, and the dimension of the connecting portion in the second direction is smaller than the dimension of the first tool holder portion in the second direction and smaller than the dimension of the second tool holder portion in the second direction.

[0013] In one embodiment, in the third direction, the size of the first blade holder is C1, the size of the connecting part is C2, and the length of the blade holder is C3;

[0014] Where C1+C2=(1 / 3-1 / 2)C3; C1≥1 / 4C3.

[0015] In one embodiment, the first fixing component includes a first fixing member and a clamping block;

[0016] One end of the first fixing member is screwed to the second cutter clamp, and the other end of the first fixing member is screwed to the clamping block, and the clamping block is pressed against at least one of the first cutter disc and the second cutter disc along the third direction.

[0017] In one embodiment, the clamping block is provided with a first mating surface, which mates with and abuts against the outer peripheral surface of the target cutter disc, wherein the target cutter disc is a first cutter disc and / or a second cutter disc.

[0018] In one embodiment, the second tool holder has a receiving groove on its surface facing the target tool disc, the bottom surface of the receiving groove is an arc surface, and the clamping block has a second mating surface that mates with the bottom surface of the receiving groove. The second mating surface abuts against the bottom surface of the receiving groove, wherein the target tool disc is a first tool disc and / or a second tool disc.

[0019] In one embodiment, the length of the clamping block is L, the width of the clamping block is W, the height of the clamping block is H, one side of the clamping block in the height direction abuts against the first cutter head and / or the second cutter head, and the axial direction of the first fixing member is the same as the length direction of the clamping block;

[0020] Where L > 40 mm; W > 35 mm; H > 35 mm.

[0021] In one embodiment, the clamping block abuts against the target cutter head, and one end of the first fixing member connected to the clamping block is inclined toward the target cutter head, wherein the target cutter head is a first cutter head and / or a second cutter head.

[0022] In one embodiment, the cavity wall in the second direction is provided with a groove, and the groove extends in an annular shape along the first direction; the first blade clamp is provided with a boss that cooperates with the groove, and the boss is placed in the groove.

[0023] In one embodiment, the first blade clamp is provided with a plurality of said bosses on each side in the second direction;

[0024] Along the direction away from the second tool clamp, the height of multiple bosses on the same side gradually decreases; and / or, along the direction away from the second tool clamp, the width of multiple bosses on the same side gradually decreases.

[0025] In one embodiment, the first blade clamp portion is provided with a first boss and a second boss on each side in the second direction, and the first boss is closer to the second blade clamp portion than the second boss.

[0026] The height of the first boss ranges from 3.5mm to 6mm; the width of the first boss ranges from 3mm to 5mm.

[0027] The height of the second boss ranges from 2.5mm to 5mm; the width of the second boss ranges from 2mm to 4mm.

[0028] In one embodiment, the blade clip assembly is provided in multiple sets, and the multiple sets of blade clip assemblies are spaced apart along the first direction;

[0029] The multiple sets of the blade clip assemblies include a first blade clip assembly and a second blade clip assembly; the second blade clip portion of both the first blade clip assembly and the second blade clip assembly is provided with a blade groove, and the blade is installed in the blade groove;

[0030] The tool groove of the first tool holder assembly is located on the surface of the second tool holder portion facing the second tool disc, and the tool groove of the second tool holder assembly is located on the surface of the second tool holder portion facing the first tool disc.

[0031] In one embodiment, the surface of the first cutter head opposite to the surface of the second cutter head is provided with scale lines.

[0032] In one embodiment, the axial tilt angle α of the blade ranges from 5° to 15°.

[0033] The beneficial effects of this application are:

[0034] The milling cutter disc provided in this application can adjust the position of the tool holder by disconnecting the connection between the first and second cutter discs and the relative position of the first fixing component with respect to the first and / or second cutter discs, without replacing the first and second cutter discs. Furthermore, by providing a receiving cavity extending along a first direction, the tool holder can be fixed at any position on the first and second cutter discs, achieving stepless circumferential adjustment of the tool holder. While the tool holder has a high fixing effect, the milling cutter disc has high flexibility, improving the versatility of the milling cutter disc and thus reducing processing costs. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this application and these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the structure of the milling cutter disc provided in the embodiments of this application;

[0037] Figure 2 This is an exploded view of the milling cutter disc provided in an embodiment of this application;

[0038] Figure 3 This is an assembly diagram of the blade holder assembly and the first fixing assembly provided in the embodiments of this application;

[0039] Figure 4 This is an exploded view of the blade clamp assembly and the first fixing assembly provided in the embodiments of this application;

[0040] Figure 5 This is a side view of the milling cutter disc provided in an embodiment of this application;

[0041] Figure 6 This application Figure 5 The AA section view shown;

[0042] Figure 7 This application Figure 5 The BB section view shown;

[0043] Figure 8 This application Figure 7 The enlarged view at point D is shown below;

[0044] Figure 9 This is a schematic diagram of the structure of the clamping block provided in the embodiment of this application;

[0045] Figure 10 This is a first side view of the clamping block provided in the embodiment of this application;

[0046] Figure 11 This is a second side view of the clamping block provided in the embodiment of this application;

[0047] Figure 12 This is a schematic diagram of the blade holder provided in an embodiment of this application;

[0048] Figure 13 This is a top view of the knife holder provided in an embodiment of this application;

[0049] Figure 14 This application Figure 13 The EE section view shown;

[0050] Figure 15 This is a schematic diagram of the blade clip assembly provided in the embodiments of this application.

[0051] In the picture:

[0052] 1. First cutter head; 11. Receiving cavity; 12. Slide groove; 13. Scale line; 2. Second cutter head; 21. First groove; 3. Tool holder assembly; 31. Tool holder; 311. First tool holder part; 3111. Boss; 3112. First boss; 3113. Second boss; 3114. Third mating surface; 312. Second tool holder part; 3121. Receiving groove; 3122. Second screw hole; 313. Connecting part; 32. 33. Blade; 34. Chip removal groove; 301. First blade clamp assembly; 302. Second blade clamp assembly; 4. First fixing assembly; 41. First fixing member; 42. Second fixing member; 43. Clamping block; 431. First mating surface; 432. Second mating surface; 433. First screw hole; 5. Second fixing assembly; 51. Locking bolt; 6. Locating pin; R, First direction; X, Second direction; Y, Third direction. Detailed Implementation

[0053] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of this application will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this application and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not all of them.

[0054] It should be understood that the phrase "an embodiment" or "one embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "in one embodiment" or "in one embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0055] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0056] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0057] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. In the description of this embodiment, unless otherwise specified, "multiple" specifically refers to two or more.

[0058] In the description of this embodiment, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0059] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or it can be located in between the component.

[0060] The technical solution of this application will be further described below with reference to the accompanying drawings and specific embodiments.

[0061] This embodiment provides a milling cutter disc that is highly flexible and can be infinitely adjusted, effectively reducing costs.

[0062] For example, such as Figures 1 to 15 As shown, the milling cutter disc includes a first cutter disc 1, a second cutter disc 2, a tool holder assembly 3, and a first fixing assembly 4. The tool holder assembly 3 is clamped and fixed between the first cutter disc 1 and the second cutter disc 2, and the first fixing assembly 4 is used to limit the position of the tool holder assembly 3 relative to the first cutter disc 1 and the second cutter disc 2.

[0063] In this embodiment, as Figure 1 and Figure 2 As shown, the first cutter head 1 and the second cutter head 2 are coaxially arranged, meaning they are aligned along the axial direction. Furthermore, the first cutter head 1 and the second cutter head 2 are detachably connected, allowing them to be either fixedly connected or separated, providing flexibility in their connection. The illustration in this embodiment shows the first cutter head 1 mounted on the second cutter head 2. However, it is understood that the second cutter head 2 can also be mounted on the first cutter head 1; that is, the first cutter head 1 and the second cutter head 2 can be interchanged. This embodiment does not limit this arrangement.

[0064] In at least one possible implementation, such as Figure 1 As shown, the first cutter head 1 and the second cutter head 2 can be detachably connected via the second fixing component 5. The second fixing component 5 may include multiple locking bolts 51. The first cutter head 1 and the second cutter head 2 are respectively provided with mounting holes for the locking bolts 51 to pass through. The locking bolts 51 pass through the mounting holes on the first cutter head 1 and are screwed into the mounting holes on the second cutter head 2, thereby locking and fixing the first cutter head 1 and the second cutter head 2. This allows the tool holder assembly 3 to be clamped in the axial direction after the first cutter head 1 and the second cutter head 2 are fixedly connected.

[0065] Optionally, the shape of the first cutter head 1 can be set according to requirements. For example, in this embodiment, the first cutter head 1 is circular. The shape of the second cutter head 2 can be the same as or different from that of the first cutter head 1. In this embodiment, the shape of the second cutter head 2 is the same as that of the first cutter head 1, and the size of the second cutter head 2 is the same as that of the first cutter head 1. After the first cutter head 1 and the second cutter head 2 are fixedly connected, the circumferential side surface of the first cutter head 1 is flush with the circumferential side surface of the second cutter head 2, thus avoiding interference between the first cutter head 1 and the second cutter head 2 and the workpiece to be processed.

[0066] It should be noted that at least one of the first cutter head 1 and the second cutter head 2 is used to connect to the machine tool's drive unit. The machine tool's drive unit is used to drive the milling cutter head to move along a preset trajectory, thereby machining the workpiece. In this embodiment, the first cutter head 1 and the second cutter head 2 have a standard interface at the center of the circle, which is connected to the machine tool's spindle. The first cutter head 1 has a clearance between the locking bolt 51 and the tool holder assembly 3 fixing point, so that the first cutter head 1 and the second cutter head 2 will not contact each other when the locking bolt 51 is tightened, but there is a small gap. This ensures that the clamping force of the first cutter head 1 and the second cutter head 2 is more concentratedly transmitted to the tool holder assembly 3, thereby improving the clamping effect of the first cutter head 1 and the second cutter head 2 on the tool holder assembly 3. Figure 8 As shown, the tiny gap M between the first cutter head 1 and the second cutter head 2 is generally between 0.3mm and 0.8mm.

[0067] In this embodiment, as Figure 7 As shown, the first cutter head 1 and the second cutter head 2 cooperate to form a receiving cavity 11 extending along the first direction R. The receiving cavity 11 is used to receive the tool holder assembly 3. In this embodiment, the receiving cavity 11 extending along the first direction R can mean that the receiving cavity 11 is annular and disposed between the first cutter head 1 and the second cutter head 2. In this embodiment, as... Figure 6 As shown, the first direction R is the circumferential direction of the first cutter head 1 (or the second cutter head 2).

[0068] In practical applications, the ring-shaped accommodating cavity 11 facilitates stepless adjustment of the position of the tool clamp assembly 3 on the first tool disc 1 and the second tool disc 2. Specifically, when adjusting the tool clamp assembly 3, simply loosen the locking bolt 51 to widen the gap between the first tool disc 1 and the second tool disc 2, and the tool clamp assembly 3 can be slid to adjust it to a suitable position, thereby achieving stepless adjustment of the tool clamp assembly 3.

[0069] The accommodating cavity 11 can be formed in various ways; in some optional embodiments, such as... Figure 2 As shown, the second cutter head 2 is provided with a first groove 21 in the shape of an annular shape, and the first cutter head 1 is provided with a second groove (not shown in the figure) in the shape of an annular shape that cooperates with the first groove 21. When the first cutter head 1 and the second cutter head 2 are connected, the first groove 21 and the second groove form a receiving cavity 11.

[0070] It is understood that either the surface of the first cutter head 1 facing the second cutter head 2 or the surface of the second cutter head 2 facing the first cutter head 1 may have a groove, while the other may not have a groove. The first cutter head 1 and the second cutter head 2 can also form a receiving cavity 11 after being connected. This embodiment does not limit this.

[0071] This embodiment provides a blade clip assembly 3, such as Figures 2 to 4As shown, the tool holder assembly 3 includes a tool holder 31. The tool holder 31 is clamped and fixed between the first tool disc 1 and the second tool disc 2 along the second direction X. That is, the first tool disc 1 and the second tool disc 2 cooperate to clamp the tool holder 31, preventing displacement of the tool holder 31 in the second direction X, thus achieving the limitation of the tool holder 31 in the second direction X. The tool holder 31 includes a first tool holder portion 311 and a second tool holder portion 312. One end of the tool holder 31 is confined within the receiving cavity 11 and forms the first tool holder portion 311, while the other end of the tool holder 31 is located outside the first tool disc 1 and the second tool disc 2 and forms the second tool holder portion 312. It should be noted that the second direction X is the height direction of the tool holder 31. In this embodiment, the height direction of the tool holder 31 is the same as the axial direction of the first tool disc 1. In this embodiment, the second direction X is perpendicular to the first direction R. In some alternative embodiments, the width direction of the tool holder 31 is the same as the first direction R, that is, the tool holder 31 can be arc-shaped to better adapt to the shape of the first tool disc 1 and the second tool disc 2.

[0072] It should also be noted that in this embodiment, the first blade clamp 311 being limited to the receiving cavity 11 means that the first blade clamp 311 is engaged with the receiving cavity 11, that is, the first blade clamp 311 abuts against the cavity wall of the receiving cavity 11, and that is, the first blade clamp 311 abuts against the receiving cavity 11 in both its length direction and height direction (i.e., the second direction X), so that the first blade clamp 311 cannot move relative to the first blade disc 1 and the second blade disc 2 along the second direction X and the length direction.

[0073] Optionally, such as Figure 12 As shown, the first tool holder 311 is provided with a third mating surface 3114. The third mating surface 3114 abuts against the cavity wall (referred to as the feature cavity wall in this embodiment) of the accommodating cavity 11 that is opposite to the outer peripheral surface of the first tool disc 1 or the second tool disc 2. When the feature cavity wall is an arc surface, the third mating surface 3114 is also an arc surface, and the arc diameter is equal to the arc diameter of the feature cavity wall. To prevent the first tool holder 311 from rotating relative to the feature cavity wall, the roughness of the third mating surface 3114 can be increased. For example, the roughness can be increased by adding a textured surface or by applying anti-slip tape, thereby increasing the friction between the first tool holder 311 and the feature cavity wall.

[0074] In practical applications, the second blade clamping part 312 of the blade clamp 31 can be used to install the blade 32, which facilitates the replacement and position adjustment of the blade 32.

[0075] like Figure 1 and Figure 3As shown, in this embodiment, the first fixing component 4 is connected to the second tool holder 312 and abuts against at least one of the first tool disc 1 and the second tool disc 2 along the third direction Y. This restricts the movement of the second tool holder 312 relative to the first tool disc 1 and / or the second tool disc 2 in the third direction Y, ensuring the firmness of the second tool holder 312 and preventing the movement of the tool insert 32 from being affected during cutting due to the movement of the second tool holder 312 relative to the first tool disc 1 and the second tool disc 2, thereby affecting the cutting accuracy. The third direction Y is the length direction of the tool holder 31. The length direction of the tool holder 31 is perpendicular to the second direction X and perpendicular to the first direction R.

[0076] It should be noted that the first fixing component 4 abutting against the first cutter head 1 and / or the second cutter head 2 means that there is a large frictional force between the first fixing component 4 and the first cutter head 1 and / or the second cutter head 2. This frictional force is configured to limit the movement of the second cutter clamp 312 relative to the first cutter head 1 and / or the second cutter head 2 along the first direction R, thereby achieving the limiting of the second cutter clamp 312 in the first direction R.

[0077] When using the milling cutter disc provided in this embodiment, the tool holder assembly 3 is installed at corresponding positions of the first cutter disc 1 and the second cutter disc 2. The fixed connection between the first cutter disc 1 and the second cutter disc 2 enables the tool holder 31 to be limited in the second direction X. Both surfaces of the first tool holder portion 311 in the third direction Y abut against the receiving cavity 11, thus limiting the tool holder 31 in the third direction Y. Furthermore, the first fixing assembly 4 abuts against the first cutter disc 1 and / or the second cutter disc 2 along the third direction Y, which also limits the tool holder 31 in the third direction Y. The frictional force between the first fixing assembly 4 and the first cutter disc 1 and / or the second cutter disc 2 can be used to restrict the movement of the second tool holder portion 312 relative to the first cutter disc 1 and / or the second cutter disc 2 along the first direction R, thereby limiting the tool holder 31 in the first direction R. This ensures that the tool holder 31 will not move relative to the first cutter disc 1 and the second cutter disc 2 in the first direction R, the second direction X, and the third direction Y, improving the fixing strength of the tool holder 31.

[0078] When the position of the tool holder assembly 3 needs to be adjusted, firstly, the connection between the first tool disc 1 and the second tool disc 2 is disconnected. At this time, the limiting effect of the receiving cavity 11 formed by the first tool disc 1 and the second tool disc 2 on the tool holder 31 in the second direction X and the third direction Y is weakened. It is also necessary to reduce the clamping force between the first fixing component 4 and the first tool disc 1 and / or the second tool disc 2. At this time, the first fixing component 4 no longer restricts the movement of the tool holder 31 relative to the first tool disc 1 in the first direction R. At this time, the second tool holder part 312 of the tool holder 31 can be pushed along the first direction R, so that the first tool holder part 311 moves in the receiving cavity 11 along the first direction R, thereby adjusting the position of the tool holder 31 relative to the first tool disc 1. After the tool holder 31 reaches the appropriate position, the first tool disc 1 and the second tool disc 2 can be connected firstly to re-limit the tool holder 31 in the second direction X and the third direction Y. Then, the first fixing component 4 is adjusted to increase the clamping force between the first fixing component 4 and the first tool disc 1 and / or the second tool disc 2, thereby realizing the limiting of the tool holder 31 in the first direction R.

[0079] The milling cutter disc provided in this embodiment can adjust the position of the tool holder 31 by disconnecting the connection between the first cutter disc 1 and the second cutter disc 2 and the relative position of the first fixing component 4 with the first cutter disc 1 and / or the second cutter disc 2, without replacing the first cutter disc 1 and the second cutter disc 2. Furthermore, by providing a receiving cavity 11 extending along the first direction R, the tool holder 31 can be fixed at any position on the first cutter disc 1 and the second cutter disc 2, realizing stepless circumferential adjustment of the tool holder 31. While the tool holder 31 has a high fixing effect, the milling cutter disc has high flexibility, improving the versatility of the milling cutter disc, thereby reducing processing costs.

[0080] In at least one possible implementation, such as Figure 3 As shown, the tool holder 31 also includes a connecting portion 313 connecting the first tool holder portion 311 and the second tool holder portion 312. The connecting portion 313 is clamped and fixed between the first tool disc 1 and the second tool disc 2 to achieve clamping and fixing of the tool holder 31 by the first tool disc 1 and the second tool disc 2. In this embodiment, as... Figure 8As shown, the dimension of the connecting portion 313 in the second direction X is smaller than the dimension of the first tool holder portion 311 in the second direction X, and also smaller than the dimension of the second tool holder portion 312 in the second direction X. This arrangement, on the one hand, prevents a large gap from existing between the first tool disc 1 and the second tool disc 2 due to the clamping of the connecting portion 313, improving the connection strength between the first tool disc 1 and the second tool disc 2, and reducing the risk of debris accumulating in the gap between the first tool disc 1 and the second tool disc 2; on the other hand, the surfaces of the first tool holder portion 311 and the second tool holder portion 312 in the third direction Y can contact the first tool disc 1 and the second tool disc 2, allowing the portions of the first tool disc 1 and the second tool disc 2 used to fix the connecting portion 313 to limit the first tool holder portion 311 and the second tool holder portion 312 in the third direction Y, further improving the limiting effect on the tool holder 31 in the first direction R, improving the firmness and stability of fixing the tool holder 31, and thus ensuring the stability of the machining process.

[0081] In some alternative embodiments, the surface of the second cutter clamp 312 facing the second cutter disc 2 (or the first cutter disc 1) mates with the outer peripheral surface of the second cutter disc 2 (or the first cutter disc 1) to better fit the outer peripheral surface of the second cutter disc 2 (or the first cutter disc 1), thereby increasing the friction between the cutter clamp 31 and the second cutter disc 2 (or the first cutter disc 1) and reducing the risk of the cutter clamp 31 moving relative to the second cutter disc 2 (or the first cutter disc 1). In this embodiment, a textured surface or anti-slip sticker can be added to the surface of the second cutter clamp 312 facing the second cutter disc 2 (or the first cutter disc 1) to further improve the friction between the second cutter clamp 312 and the second cutter disc 2 (or the first cutter disc 1), which helps to fix the cutter clamp 31.

[0082] In some alternative implementations, such as Figure 8 As shown, in the third direction Y, the dimension of the first tool holder 311 is C1, the dimension of the connecting part 313 is C2, and the length of the tool holder 31 is C3. The units for C1, C2, and C3 can be mm.

[0083] Optionally, C1, C2, and C3 satisfy the relationship: C1 + C2 = (1 / 3 - 1 / 2)C3. Wherein, C1 + C2 represents the length of the tool holder 31 within the first and second cutting discs 1 and 2. In this embodiment, the shorter internal length of the tool holder 31 is reasonable. On the one hand, it reduces the space occupied by the tool holder 31 within the first and second cutting discs 1 and 2, making its adjustment within these discs more flexible and allowing for easier adjustment of its position according to processing requirements. On the other hand, the shorter internal length of the tool holder 31 also reduces its overall weight, decreasing the inertial forces on the first and second cutting discs 1 and 2 during rotation and improving their dynamic balance performance.

[0084] For example, C1+C2=1 / 3C3, C1+C2=0.4C3, C1+C2=1 / 2C3, etc., but this embodiment does not limit these.

[0085] In one embodiment, C1 and C3 satisfy the relationship: C1 ≥ 1 / 4C3. Here, C1 represents the length of the first tool holder 311. A longer first tool holder 311 increases the contact area with the receiving cavity 11. With constant normal pressure and coefficient of friction, increasing the contact area improves friction, thereby enhancing the stability of the first tool holder 311 within the receiving cavity 11 and preventing displacement during cutting. In practical applications, the appropriate length ratio needs to be selected based on the specific machining conditions and requirements. For example, in high-precision milling, where stability of the tool holder 31 is critical, a relatively long first tool holder 311 and a longer connecting portion 313 may be chosen. Conversely, in situations requiring high machining efficiency and frequent adjustments to the tool holder 31's position, a shorter first tool holder 311 and a shorter connecting portion 313 may be selected.

[0086] For example, C1 = 1 / 4C3, C1 = 0.26C3, C1 = 0.28C3, etc., but this embodiment does not limit this.

[0087] The first fixing component 4 can have various specific structures. This embodiment provides an example of a first fixing component 4.

[0088] For example, such as Figure 3 and Figure 4 As shown, the first fixing component 4 includes a first fixing member 41 and a clamping block 43. One end of the first fixing member 41 is screwed to the second cutter clamping portion 312, and the other end is screwed to the clamping block 43. The clamping block 41 presses against at least one of the first cutter disc 1 and the second cutter disc 2 along a third direction Y. That is, the force that tightly abuts the clamping block 43 against the first cutter disc 1 and / or the second cutter disc 2 is provided by the first fixing member 41. During the connection process with the clamping block 43, the first fixing member 41 gradually applies a force to the clamping block 43, causing the clamping block 43 to gradually press against the first cutter disc 1 and / or the second cutter disc 2. In this embodiment, the magnitude of the force between the clamping block 43 and the first cutter disc 1 and / or the second cutter disc 2 is related to the degree of connection between the clamping block 43 and the first fixing member 41.

[0089] For example, the first fastener 41 can be a double-ended screw, that is, the first fastener 41 has two threaded sections, such as... Figure 9 As shown, the clamping block 43 is provided with a first screw hole 433, such as Figure 12As shown, the second blade clamp 312 is provided with a second screw hole 3122. One threaded section of the first fixing member 41 is screwed into the first screw hole 433, and the other threaded section is screwed into the second screw hole 3122, thereby realizing the screw connection with the clamping block 43 and the second blade clamp 312.

[0090] In some possible implementations, such as Figure 6 As shown, one end of the first fixing member 41 is connected to the second cutter clamp 312, and the other end of the first fixing member 41 is inclined toward the first cutter disc 1 and / or the second cutter disc 2, that is, the first fixing member 41 is inclined. For example, the first fixing member 41 may be tangent to the outer peripheral surface of the first cutter disc 1 and / or the second cutter disc 2.

[0091] Optionally, the clamping block 43 abuts against the target cutter head, and the end of the first fixing member 41 connected to the clamping block 43 is inclined toward the target cutter head, wherein the target cutter head is the first cutter head 1 and / or the second cutter head 2. For example, when the clamping block 43 abuts against the first cutter head 1, the end of the first fixing member 41 connected to the clamping block 43 is inclined toward the first cutter head 1 so as to smoothly provide a compressive force to the clamping block 43, thereby generating a large frictional force between the clamping block 43 and the first cutter head 1. When the clamping block 43 abuts against the second cutter head 2, the end of the first fixing member 41 connected to the clamping block 43 is inclined toward the second cutter head 2 so as to smoothly provide a compressive force to the clamping block 43, thereby generating a large frictional force between the clamping block 43 and the second cutter head 2.

[0092] The accompanying drawings in this embodiment show the clamping block 43 abutting against the second cutter head 2. It is understood that the clamping block 43 can also abut against the first cutter head 1, or it can abut against both the first cutter head 1 and the second cutter head 2. For ease of description, in this embodiment, the clamping block 43 abuts against the target cutter head, which is the first cutter head 1 and / or the second cutter head 2.

[0093] To increase the friction between the clamping block 43 and the target cutter head, for example, such as Figure 9 As shown, the clamping block 43 has a first mating surface 431, which mates with and abuts against the outer peripheral surface of the target cutter disc. By providing the first mating surface 431, the clamping block 43 can better fit against the outer peripheral surface of the target cutter disc, thereby increasing the contact area between the clamping block 43 and the target cutter disc. This makes the clamping principle of the clamping block 43 equivalent to a wedge, effectively increasing the friction between the clamping block 43 and the target cutter disc. Consequently, the clamping block 43 can effectively prevent the cutter holder 31 from moving relative to the target cutter disc along the first direction R.

[0094] For example, the outer peripheral surface of the target cutter head is a curved surface (e.g., an arc surface), and the first mating surface 431 is also a curved surface. Optionally, when the target cutter head is cylindrical, the first mating surface 431 is an arc surface, and the size of the arc is equal to the diameter of the target cutter head. When the first fixing member 41 is locked to the clamping block 43 and the second tool clamping part 312, the clamping block 43 is driven to generate pressure on the target cutter head. Through the clamping force, the tool clamp 31 is further secured to the target cutter head, ensuring the stability of the machining and preventing the tool clamp 31 from moving during machining.

[0095] In at least one possible implementation, a textured surface can be provided on the first mating surface 431 to increase the roughness of the first mating surface 431, thereby increasing the friction between the clamping block 43 and the target cutter head.

[0096] To ensure the structural strength of the clamping block 43, this embodiment limits the size of the clamping block 43. In one embodiment, such as... Figure 10 and Figure 11 As shown, the length of the clamping block 43 is L, the width of the clamping block 43 is W, and the height of the clamping block 43 is H. One side of the clamping block 43 in the height direction abuts against the second cutter head 2, and the axial direction of the first fixing member 41 is the same as the length direction of the clamping block 43.

[0097] In one embodiment, the length L of the clamping block 43 is greater than 40 mm. More preferably, the length L of the clamping block 43 can be in the range of 50 mm to 70 mm. This ensures both the structural strength of the clamping block 43 and the contact area between the clamping block 43 and the target cutter head. For example, the length L of the clamping block 43 can be 50 mm, 55 mm, 60 mm, 65 mm, 70 mm, etc.

[0098] In some embodiments, the width W of the clamping block 43 is greater than 35 mm. More preferably, the width of the clamping block 43 can be in the range of 40 mm to 60 mm. This ensures both the structural strength of the clamping block 43 and the contact area between the clamping block 43 and the target cutter head. For example, the width W of the clamping block 43 can be 40 mm, 45 mm, 50 mm, 55 mm, 60 mm, etc.

[0099] In some embodiments, the height H of the clamping block 43 is greater than 35 mm. More preferably, the height of the clamping block 43 can be in the range of 40 mm to 60 mm. This ensures the structural strength of the clamping block 43. For example, the width W of the clamping block 43 can be 40 mm, 45 mm, 50 mm, 55 mm, 60 mm, etc.

[0100] In at least one possible implementation, such as Figure 12As shown, the second tool holder 312 has a receiving groove 3121 on its surface facing the second tool disc 2, and the bottom surface of the receiving groove 3121 is an arc surface. Figure 9 As shown, the clamping block 43 has a second mating surface 432 that mates with the bottom surface of the receiving groove 3121. The second mating surface 432 abuts against the bottom surface of the receiving groove 3121. By providing the second mating surface 432, the clamping block 43 can tightly abut against the second blade clamping part 312, thereby improving the integrity of the clamping block 43 and the second blade clamping part 312, and allowing the clamping block 43 to better limit the second blade clamping part 312. It should be noted that, as Figure 1 or Figure 2 As shown, most of the structure of the clamping block 43 is located in the receiving groove 3121, and the first mating surface 431 is located outside the receiving groove 3121 so as to abut against the target cutter head.

[0101] In at least one implementation, such as Figure 4 As shown, the second tool holder 312 is also provided with a tool groove 33, which is used to install the blade 32, that is, the blade 32 is installed in the tool groove 33. In this embodiment, the receiving groove 3121 extends to one surface in the width direction of the second tool holder 312, and the tool groove 33 is provided on the other surface in the width direction of the second tool holder 312, that is, the receiving groove 3121 and the tool groove 33 are provided on both sides of the second tool holder 312. With this configuration, during the cutting process, the clamping block 43 provided in the receiving groove 3121 can better stop the second tool holder 312, so as to further reduce the risk of the second tool holder 312 moving along the first direction R under the push of the blade 32, and improve stability and reliability.

[0102] Optionally, please continue to see Figure 3 The second tool holder 312 is also provided with a chip removal groove 34, which is mainly used for chip removal during the machining process. In this embodiment, the chip removal groove 34 is located on the side of the tool groove 33 opposite to the mounting groove.

[0103] In at least one embodiment, in order to improve the stability of the tool holder 31 when moving along the first direction R while adjusting its position in the first direction R, such as Figure 6 and Figure 8 As shown, the cavity 11 has a groove 12 on its cavity wall in the second direction X, and the groove 12 extends in a ring shape along the circumference of the first cutter head 1. Figure 3As shown, the first tool holder 311 is provided with a boss 3111 that mates with the slide groove 12, and the boss 3111 is placed in the slide groove 12. In some optional embodiments, the boss 3111 and the slide groove 12 can be tightly fitted. When the first tool disc 1 and the second tool disc 2 are in a fixed connection state (that is, the locking bolt 51 locks the first tool disc 1 and the second tool disc 2), the boss 3111 abuts tightly against the groove wall of the slide groove 12, and the first tool holder 311 of the tool holder 31 cannot slide in the receiving cavity 11. When the first tool disc 1 and the second tool disc 2 do not clamp the tool holder 31, and the clamping block 43 does not restrict the movement of the tool holder 31 along the first direction R, the boss 3111 can slide in the slide groove 12 along the extension direction of the slide groove 12, so that the slide groove 12 can guide the movement of the tool holder 31 to ensure that the tool holder 31 moves to a suitable position along the first direction R. Once the tool holder 31 is in place, there is no need to reposition it in the third direction Y, which shortens the adjustment time of the tool holder 31 and improves the adjustment efficiency of the tool holder 31.

[0104] It should be noted that the side of the first blade clamp 311 in the second direction X refers to the side of the first blade clamp 311 that is perpendicular to the second direction X. The cavity wall of the receiving cavity 11 in the second direction X refers to the cavity wall of the receiving cavity 11 that is perpendicular to the second direction X.

[0105] It should also be noted that the extension direction of the boss 3111 is the same as the extension direction of the groove 12. For example, the boss 3111 extends along the first direction R.

[0106] In some embodiments, the receiving cavity 11 has two cavity walls with grooves 12 in the second direction X, and the corresponding first blade clamping part 311 has a boss 3111 on each side in the second direction X, with the bosses 3111 correspondingly placed in the grooves 12. This arrangement can further increase the contact area between the first blade clamping part 311 and the receiving cavity 11, which is beneficial to increasing friction and improving the stability and directionality of the blade clamping part 31 during movement.

[0107] In at least one implementation, such as Figure 3 and Figure 4 As shown, the first blade clamp 311 has multiple protrusions 3111 on each side in the second direction X, and the multiple protrusions 3111 are spaced apart. Correspondingly, each cavity wall of the receiving cavity 11 in the second direction X has multiple sliding grooves 12, and each protrusion 3111 is placed in a corresponding sliding groove 12. Optionally, the number of protrusions 3111 on each side can be 2, 3, etc., and this embodiment does not limit this.

[0108] In one embodiment, the protrusions 3111 on the two sides of the first blade clamp 311 in the second direction X can be symmetrically distributed to improve the uniformity of force on the first blade clamp 311. The protrusions 3111 located on the same side can be spaced apart along the third direction Y.

[0109] Optionally, such as Figure 14 As shown, among the multiple bosses 3111 located on the same side, the height of the boss 3111 is negatively correlated with the distance between the boss 3111 and the second tool holder 312. That is, the closer to the second tool holder 312, the higher the height of the boss 3111; the farther away from the second tool holder 312, the lower the height of the boss 3111. During the cutting process, the force on the tool holder 31 is complex and variable. Bosses 3111 at different positions can reasonably distribute the pressure according to the force on the tool holder 31. Bosses 3111 closer to the second tool holder 312 bear greater centrifugal force and cutting force during the operation of the tool holder 31. The tool holder 3111 will be subjected to greater centrifugal force. Therefore, the bosses 3111 closer to the second tool holder 312 can be set higher to improve the structural strength of the bosses 3111 and reduce the risk of breakage.

[0110] In at least one embodiment, among the plurality of bosses 3111 located on the same side, the width of the boss 3111 is negatively correlated with the distance between the boss 3111 and the second tool clamp 312. That is, the closer to the second tool clamp 312, the wider the boss 3111; the farther away from the second tool clamp 312, the smaller the width of the boss 3111. This arrangement makes the bosses 3111 closer to the second tool clamp 312 wider, thereby effectively improving the structural strength of the bosses 3111, enabling them to withstand greater centrifugal force and cutting force, and reducing the risk of boss failure.

[0111] In one implementation, such as Figure 14 As shown, each side of the first tool holder 311 in the height direction (i.e., the second direction X) is provided with a first boss 3112 and a second boss 3113, that is, each side is provided with two bosses 3111, namely the first boss 3112 and the second boss 3113. Among them, the first boss 3112 is closer to the second tool holder 312 than the second boss 3113.

[0112] Optionally, the height F2 of the first boss 3112 can be in the range of 3.5mm-6mm. For example, the height F2 of the first boss 3112 can be 3.5mm, 4mm, 4.5mm, 5mm, 6mm, etc.

[0113] Optionally, the width K2 of the first boss 3112 can be in the range of 3mm-5mm. For example, the width K2 of the first boss 3112 can be 3mm, 3.5mm, 4mm, 4.5mm, 5mm, etc.

[0114] In this embodiment, the wider design of the first boss 3112 provides sufficient support area to resist centrifugal force during the cutting process, preventing the tool holder 31 from sliding outward under centrifugal force. The larger height of the first boss 3112 enhances the fitting accuracy with the slide groove 12 of the receiving cavity 11, keeping the tool holder 31 stable during high-speed operation and reducing vibration and noise.

[0115] Optionally, the height F1 of the second boss 3113 can range from 2.5mm to 5mm. For example, the height F1 of the second boss 3113 can be 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, etc.

[0116] Optionally, the width K1 of the second boss 3113 can be in the range of 2mm-4mm. For example, the width K1 of the second boss 3113 can be 2mm, 2.5mm, 3mm, 3.5mm, 4mm, etc.

[0117] In this embodiment, the second boss 3113 experiences relatively less force, and its height and width are both smaller than those of the first boss 3112. The smaller size of the second boss 3113 satisfies the basic support and guidance requirements of the tool holder 31, and the corresponding groove 12 reduces the overall weight of the first and second cutter heads 1 and 2, improving the rotation efficiency of the milling cutter heads.

[0118] It should be noted that the accommodating cavity 11 is provided with a first sliding groove 12 (not shown in the figure) that mates with the first boss 3112 and a second sliding groove 12 (not shown in the figure) that mates with the second boss 3113. The height of the first boss 3112 is the groove depth of the first sliding groove 12, and the height of the second boss 3113 is the groove depth of the second sliding groove 12.

[0119] In this embodiment, the synergistic effect of the first boss 3112 and the second boss 3113 can make the tool holder 31 run more smoothly in the accommodating cavity 11 and reduce wear caused by uneven force. In actual machining, the second boss 3113 can assist the first boss 3112 to jointly ensure the stable operation of the tool holder 31. Especially when the cutting force direction changes, the second boss 3113 can play a certain role in buffering and adjustment.

[0120] In at least one embodiment, such as Figure 1 and Figure 2As shown, the tool holder assembly 3 is provided in multiple sets, and the multiple sets of tool holder assemblies 3 are arranged at intervals along the first direction R. In this embodiment, the spacing between the multiple tool holder assemblies 3 can be adjusted, and there is no need to replace the first tool disc 1 and the second tool disc 2.

[0121] like Figure 1 As shown, the multiple blade clamping assemblies 3 include at least one first blade clamping assembly 301 and at least one second blade clamping assembly 302. Both the first blade clamping assembly 301 and the second blade clamping assembly 302 have a blade groove 33 for mounting the blade 32 in their second clamping portions 312. The blade groove 33 of the first blade clamping assembly 301 is located at a different position than the blade groove 33 of the second blade clamping assembly 302.

[0122] For example, please continue to see Figure 1 The tool groove 33 of the first tool holder assembly 301 is located on the surface of the second tool holder portion 312 facing the second tool disc 2; that is, the blade 32 of the first tool holder assembly 301 is positioned close to the second tool disc 2. Figure 1 In the indicated orientation, the cutting groove 33 of the first tool holder assembly 301 is located below the second tool holder portion 312. The cutting groove 33 of the second tool holder assembly 302 is provided on the surface of the second tool holder portion 312 facing the first tool disc 1, that is, the blade 32 of the second tool holder assembly 302 is positioned close to the first tool disc 1. Figure 1 In the orientation shown, the tool groove 33 of the second tool holder assembly 302 is located above the second tool holder portion 312. This configuration allows for three-sided groove machining, making it suitable for complex machining conditions, eliminating the need for multiple machining operations, and providing high flexibility and versatility.

[0123] It should be noted that in this embodiment, the number of first tool holder assemblies 301 needs to be the same as the number of second tool holder assemblies 302. Preferably, the first tool holder assemblies 301 and the second tool holder assemblies 302 are alternately arranged in the first direction R.

[0124] In some alternative embodiments, such as Figure 15 As shown, the insert 32 is mounted on the tool holder 31, and its axial tilt angle α is typically designed to be 5°-15°. This angle design is based on the principle of decomposing cutting forces. When the insert 32 performs cutting, it is subjected to a cutting force opposite to the cutting direction. By designing the mounting part of the insert 32 at an inclined angle, the cutting force can be decomposed into two components: vertical and horizontal. The vertical component can be offset by the clamping force of the tool holder 31 and the first and second tool discs 1 and 2. According to the principle of force balance, this reduces the tendency of the insert 32 to displace in the vertical direction, ensuring the stability of the insert 32 during the cutting process. The horizontal component can be dispersed by the engagement of the boss 3111 on the tool holder 31 with the groove 12 in the receiving cavity 11, reducing the lateral force on the tool holder 31 and lowering the risk of displacement of the tool holder 31 during the cutting process.

[0125] It should be noted that, as Figure 15 As shown, the axial tilt angle of the insert 32 is the angle between the cutting edge of the insert 32 and the second direction X. For example, the value of the axial tilt angle α is 5°, 10°, 11°, 12°, 15°, etc., and this embodiment does not limit it.

[0126] In at least one possible implementation, such as Figure 1 and Figure 2 As shown, the surface of the first cutter head 1 facing away from the second cutter head 2 is provided with scale lines 13. Multiple scale lines 13 are provided, arranged along a first direction R. Some scale lines 13 also have corresponding scale marks for marking angles. By setting the scale lines 13, the tooth spacing of the multiple cutter holders 31 can be easily adjusted, thus different tooth spacings can be set to meet different working conditions.

[0127] In some alternative embodiments, such as Figure 1 and Figure 2 As shown, the milling cutter disc also includes a positioning pin 6. Both the first cutter disc 1 and the second cutter disc 2 are provided with positioning holes. The positioning pin 6 is inserted into the positioning holes to achieve positioning of the first cutter disc 1 and the second cutter disc 2.

[0128] The milling cutter disc provided in this embodiment facilitates the assembly and disassembly of the tool holder 31 via a detachable tool holder 31. The cutting insert 32 is mounted on the second tool holder portion 312 of the tool holder 31 via a second fixing member 42. The first tool holder portion 311 of the tool holder 31 has a boss 3111 that corresponds to the sliding groove 12 within the accommodating cavity 11. The tool holder 31 can be infinitely adjusted circumferentially along the sliding groove 12, enabling the milling cutter disc of any diameter to accommodate any number of tool holders 31 and tool holders 31 with different tooth spacings to meet various working conditions.

[0129] After adjusting the number and position of the tool holders 31, multiple locking bolts 51 are used to lock the first tool disc 1 and the second tool disc 2. The clamping force provided by the locking bolts 51 fixes the tool holders 31 in their fixed positions on the first tool disc 1 and the second tool disc 2, achieving clamping force in the second direction X to prevent the tool holders 31 from moving. Furthermore, the first fixing member 41 on the second tool holder part 312 of each tool holder 31 is tightened. Through the clamping force between the clamping block 43 and the second tool disc 2, a circumferential clamping force is provided, further securing the tool holders 31 to the second tool disc 2, ensuring machining stability and preventing the tool holders 31 from moving during machining.

[0130] Furthermore, by simply changing different tool holders 31, different blades 32 can be installed on the same tool disc, enabling one tool disc to accommodate multiple blades 32 and achieve machining of different groove widths, greatly saving costs and reducing processing costs.

[0131] This application also provides a milling cutter tool, including the milling cutter disc described above. The milling cutter tool has high versatility and low machining cost.

[0132] For example, such as Figure 2 As shown, the milling cutter also includes a cutting insert 32, which is mounted on the second clamping portion 312 of the tool holder assembly 3.

[0133] Optionally, in this embodiment, the insert 32 can be a three-sided fluting insert, and the positioning surface of the insert 32 mates with the positioning surface of the groove 33 on the second tool holder 312 to improve positioning stability. In one possible implementation, such as Figure 4 As shown, the first fixing component 4 also includes a second fixing member 42, wherein the blade 32 is connected to the second blade clamping portion 312 via the second fixing member 42. Exemplarily, the second fixing member 42 can be a locking screw.

[0134] Note that the above are merely preferred embodiments and the technical principles employed in this application. Those skilled in the art will understand that this application is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of this application. Therefore, although this application has been described in detail through the above embodiments, this application is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of this application, the scope of which is determined by the scope of the appended claims.

Claims

1. A milling cutter disc, characterized in that, include: First cutter head (1); The second cutter head (2) is coaxially arranged with the first cutter head (1). The first cutter head (1) and the second cutter head (2) are detachably connected. The first cutter head (1) and the second cutter head (2) cooperate with each other to form a receiving cavity (11) extending along the first direction (R). The blade clamp assembly (3) includes a blade clamp (31), which is clamped and fixed between the first blade disc (1) and the second blade disc (2) along the second direction (X), and one end of the blade clamp (31) is limited to the receiving cavity (11) and forms a first blade clamp portion (311), and the other end of the blade clamp (31) is located outside the first blade disc (1) and the second blade disc (2) and forms a second blade clamp portion (312); A first fixing component (4) is connected to the second tool holder (312) and abuts against at least one of the first tool disc (1) and the second tool disc (2) in the third direction (Y) to restrict the movement of the second tool holder (312) relative to the first tool disc (1) in the first direction (R); Wherein, the first direction (R) is the circumferential direction of the first cutter head (1), the second direction (X) is the height direction of the cutter clip (31), and the third direction (Y) is the length direction of the cutter clip (31).

2. The milling cutter disc according to claim 1, characterized in that, The blade holder (31) further includes a connecting part (313), which is connected between the first blade holder part (311) and the second blade holder part (312). The connecting part (313) is clamped and fixed between the first blade disc (1) and the second blade disc (2). The size of the connecting part (313) in the second direction (X) is smaller than the size of the first blade holder part (311) in the second direction (X) and smaller than the size of the second blade holder part (312) in the second direction (X).

3. The milling cutter disc according to claim 2, characterized in that, In the third direction (Y), the size of the first tool holder (311) is C1, the size of the connecting part (313) is C2, and the length of the tool holder (31) is C3; Where C1+C2=(1 / 3-1 / 2)C3; C1≥1 / 4C3.

4. The milling cutter disc according to claim 1, characterized in that, The first fixing component (4) includes a first fixing member (41) and a clamping block (43); One end of the first fixing member (41) is screwed to the second cutter clamp (312), and the other end of the first fixing member (41) is screwed to the clamping block (43), and the clamping block (43) is pressed against at least one of the first cutter disc (1) and the second cutter disc (2) along the third direction (Y).

5. The milling cutter disc according to claim 4, characterized in that, The clamping block (43) is provided with a first mating surface (431), which mates with and abuts against the outer peripheral surface of the target cutter disc, wherein the target cutter disc is a first cutter disc (1) and / or a second cutter disc (2).

6. The milling cutter disc according to claim 4, characterized in that, The second tool holder (312) has a receiving groove (3121) on its surface facing the target tool disc. The bottom surface of the receiving groove (3121) is an arc surface. The clamping block (43) has a second mating surface (432) that mates with the bottom surface of the receiving groove (3121). The second mating surface (432) abuts against the bottom surface of the receiving groove (3121). The target tool disc is a first tool disc (1) and / or a second tool disc (2).

7. The milling cutter disc according to claim 4, characterized in that, The length of the clamping block (43) is L, the width of the clamping block (43) is W, the height of the clamping block (43) is H, one side of the clamping block (43) in the height direction abuts against the first cutter disc (1) and / or the second cutter disc (2), and the axial direction of the first fixing member (41) is the same as the length direction of the clamping block (43); Where L > 40 mm; W > 35 mm; H > 35 mm; And / or, the clamping block (43) abuts against the target cutter disc, and the first fixing member (41) is inclined toward the target cutter disc at one end connected to the clamping block (43), wherein the target cutter disc is the first cutter disc (1) and / or the second cutter disc (2).

8. The milling cutter disc according to any one of claims 1-7, characterized in that, The cavity (11) has a groove (12) on its cavity wall in the second direction (X), and the groove (12) extends in an annular shape along the first direction (R); the first blade clamp (311) has a boss (3111) that cooperates with the groove (12), and the boss (3111) is placed in the groove (12).

9. The milling cutter disc according to claim 8, characterized in that, The first blade clamp (311) is provided with a plurality of said bosses (3111) on each side in the second direction (X); Among the plurality of protrusions (3111) located on the same side, the height of the protrusion (3111) is negatively correlated with the distance between the protrusion (3111) and the second blade clamp (312); and / or, among the plurality of protrusions (3111) located on the same side, the width of the protrusion (3111) is negatively correlated with the distance between the protrusion (3111) and the second blade clamp (312).

10. The milling cutter disc according to claim 9, characterized in that, The first blade clamp (311) is provided with a first boss (3112) and a second boss (3113) on each side in the second direction (X), and the first boss (3112) is closer to the second blade clamp (312) than the second boss (3113); The height of the first boss (3112) ranges from 3.5mm to 6mm; the width of the first boss (3112) ranges from 3mm to 5mm. The height of the second boss (3113) ranges from 2.5mm to 5mm; the width of the second boss (3113) ranges from 2mm to 4mm.

Images