Blade and tool

Abstract

The utility model discloses a blade and a cutter, the blade comprises a plurality of cutter bodies, and the cutter bodies are mutually connected and are symmetrically arranged about a central axis; the inner face of the cutter body inclines towards the outer face of the cutter body so that a drilling blade can be formed at the joint of the bottom face and the inner face of the cutter body, the inner face inclines towards the outer face so that a milling blade can be formed at the joint of the side face and the inner face of the cutter body, the blade portion of the drilling blade is arranged in the horizontal direction, and the blade portion of the milling blade is arranged in the vertical direction. The horizontal direction is perpendicular to the vertical direction; and a chip separating groove is formed in the milling blade. On the basis, the chip separating grooves are formed in the milling edges of the cutter bodies, so that chips generated on the milling edges can be discharged through the respective chip separating grooves, the problem of chip accumulation generated in the machining process is effectively solved, friction and heat accumulation between the cutter and a workpiece are reduced, and the service life of the cutter is prolonged. Therefore, damage to the cutter or reduction of the machining quality caused by accumulation of the chippings is avoided.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of mechanical processing, and particularly relates to a blade and a cutter. BACKGROUND

[0002] Generally, a large amount of chips will be generated in the process of machining a workpiece by a milling cutter, which affects the machining precision of the cutter on the workpiece.

[0003] At present, in order to reduce the influence of chip machining chips on machining precision, a chip removal groove is provided to facilitate the discharge of chips. A patent with publication number CN213672061U proposes a novel double-sided square shoulder milling cutter, which comprises a cutter holder and two upper cutting edges fixedly connected to the cutter holder. Two lower cutting edges are fixedly connected to the bottom end of the cutter holder. The upper cutting edge comprises a first cutting surface, a rear cutting surface and a second cutting surface. The rear cutting surface side wall coincides with the cutter holder side wall. The first cutting surface and the second cutting surface are integrally fixedly connected to the side of the rear cutting surface away from the cutter holder. A positioning hole is provided in the cutter holder. A threaded slot is provided in the center of the cutter holder. In the utility model, the symmetrical double-sided cutting edge structure is adopted to realize the same direction of the upper cutting edge and the lower cutting edge when the cutter holder is turned over, and the same use effect when the cutter holder is turned over on both sides. The gap type cutting edge discharge structure realizes the discharge of chips through the gap between the two upper cutting edges, and realizes the limiting installation of the cutter holder and the external tool holder structure through the positioning hole.

[0004] In the above-mentioned patent, the chips are discharged through the gap between the two cutting edges. However, chips will be generated during the cutting process of the two cutting edges. The chips generated by the two cutting edges are all accumulated in one gap, which may cause chip jamming. Moreover, once the chips are jammed, the machining of the workpiece by the two cutting edges will be affected. SUMMARY

[0005] The present application provides a blade and a cutter, which solves the problem of chip accumulation during milling.

[0006] According to a first aspect of the present application, a blade is provided:

[0007] The blade comprises a plurality of blade bodies, each of which is connected to each other and arranged symmetrically about a central axis;

[0008] The inner surface of the blade body is inclined to the outer surface of the blade body to form a drilling machining edge at the intersection of the bottom surface and the inner surface of the blade body. The inner surface is inclined to the outer surface to form a milling machining edge at the intersection of the side surface and the inner surface of the blade body. The edge part of the drilling machining edge is arranged in a horizontal direction, and the edge part of the milling machining edge is arranged in a vertical direction. The horizontal direction and the vertical direction are perpendicular to each other.

[0009] A chip removal groove is provided on the milling machining edge.

[0010] Optionally, the relief surface of the milling cutting edge comprises a first milling relief surface and a second milling relief surface connected to each other, the first milling relief surface and the second milling relief surface form a first obtuse angle, the first milling relief surface is connected to the inner surface, and the chip breaker groove is arranged on the first milling relief surface.

[0011] Optionally, the number of chip breaker grooves is multiple, and the multiple chip breaker grooves are arranged on the milling cutting edge at intervals.

[0012] Optionally, the drilling cutting edge comprises a first segment drilling cutting edge and a second segment drilling cutting edge connected to each other, the first segment drilling cutting edge is connected to the milling cutting edge, and in the vertical direction, the second segment drilling cutting edge is arranged to be inclined away from the bottom surface of the tool body.

[0013] Optionally, in the horizontal direction, the second segment drilling cutting edge is arranged to be inclined away from the inner surface.

[0014] Optionally, each first segment drilling cutting edge is arranged to be staggered.

[0015] Optionally, the tool body is provided with a fixing hole penetrating the inner surface and the outer surface.

[0016] The number of tool bodies is two, and the fixing holes of the two tool bodies are arranged concentrically.

[0017] The fixing member sequentially passes through the fixing hole of each tool body, and respectively connects the inner surfaces of the two tool bodies to each other.

[0018] Optionally, the two tool bodies are arranged to be integrated.

[0019] Optionally, the outer surface of the tool body is provided with a cooling groove, and the outer surface and the inner surface are arranged to be opposite.

[0020] According to a second aspect of the present application, an embodiment of the present application provides a tool, comprising the insert according to any one of the first aspect.

[0021] The technical scheme provided by the embodiment of the present application at least brings the following beneficial effects:

[0022] The embodiment of the application provides a blade and a tool, the blade comprises: the blade comprises a plurality of blade bodies, the blade bodies are connected with each other, and the blade bodies are arranged in a central axis symmetry mode; the inner surface of the blade body is arranged to be inclined to the outer surface of the blade body, so that a drilling machining edge is formed at the intersection of the bottom surface and the inner surface of the blade body; the inner surface is arranged to be inclined to the outer surface, so that a milling machining edge is formed at the intersection of the side surface and the inner surface of the blade body; the blade part of the drilling machining edge is arranged in a horizontal direction; the blade part of the milling machining edge is arranged in a vertical direction; the horizontal direction and the vertical direction are perpendicular to each other; and a chip breaker groove is formed in the milling machining edge. Based on this, the drilling machining edge and the milling machining edge are integrated in one by designing the blade body, and the multifunctional machining capability of a single tool is realized. The scheme not only simplifies the machining process, reduces the number of tool replacement, but also significantly improves the machining efficiency and production flexibility; the blade part of the drilling machining edge is arranged in the horizontal direction, which is beneficial to keeping the consistency of the hole diameter and the accuracy of the depth in the drilling process; and the blade part of the milling machining edge is arranged in the vertical direction, which ensures the stability and cutting efficiency in the milling machining. The blade of the scheme can keep high precision in the machining process, and meet the high-precision machining requirement of complex workpieces. Meanwhile, the chip breaker groove is formed in the milling machining edge of each blade body, so that the chips generated on each milling machining edge can be discharged through the respective chip breaker groove, the chip accumulation problem in the machining process is effectively solved, the friction and heat accumulation between the tool and the workpiece are reduced, and the tool damage or the machining quality decline caused by the chip accumulation is avoided.

[0023] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the application. BRIEF DESCRIPTION OF DRAWINGS

[0024] The drawings incorporated into the specification and constituting a part of the specification show embodiments consistent with the application, and together with the specification serve to explain the principles of the application, and do not constitute undue limitations on the application.

[0025] Figure 1 is a structural schematic diagram of a blade according to an exemplary embodiment;

[0026] Figure 2 is another structural schematic diagram of a blade according to an exemplary embodiment;

[0027] Figure 3 is still another structural schematic diagram of a blade according to an exemplary embodiment;

[0028] Figure 4 is still another structural schematic diagram of a blade according to an exemplary embodiment.

[0029] LEGEND:

[0030] Legend Name Legend Name 100 insert 110 shank 111 drilling cutting edge 111a first segment of drilling cutting edge 111b second segment of drilling cutting edge 112 milling cutting edge 112a first milling flank 112b second milling flank 112c chip breaker 113 fixing hole 115 cooling groove DETAILED DESCRIPTION

[0031] In the description of the application, it needs to be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0032] In this application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0033] In this application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the specification, the description of the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the application.

[0034] In this specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In the following description, many specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure can also be implemented in other ways different from those described herein; obviously, the embodiments described in the specification are only a part of the embodiments of the present disclosure, not all the embodiments.

[0035] In order to more clearly understand the above-mentioned purposes, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0036] Based on this, the present application provides a blade and a tool. First, the blade provided by the embodiments of the present application will be introduced below.

[0037] Figure 1 The structural schematic diagram of the blade provided by one embodiment of the present application is shown in the figure; Figure 2 is another structural schematic diagram of the blade according to an exemplary embodiment; Figure 3 is still another structural schematic diagram of the blade according to an exemplary embodiment;

[0038] Figure 2 is still another structural schematic diagram of the blade according to an exemplary embodiment. As shown in the figure, Figures 1-4 the blade can include the following structure:

[0039] Embodiment 1;

[0040] The blade 100 includes a plurality of blade bodies 110, each blade body 110 is connected to each other, and is arranged symmetrically about a central axis;

[0041] The inner surface of the blade body 110 is inclined to the outer surface of the blade body 110 to form a drilling processing edge 111 at the intersection of the bottom surface and the inner surface of the blade body 110, and the inner surface is inclined to the outer surface to form a milling processing edge 112 at the intersection of the side surface and the inner surface of the blade body 110, the edge part of the drilling processing edge 111 is arranged in the horizontal direction, the edge part of the milling processing edge 112 is arranged in the vertical direction, and the horizontal direction and the vertical direction are perpendicular to each other;

[0042] The milling processing edge 112 is provided with a chip separation groove 112c, and the number of the chip separation groove 112c is multiple, and the multiple chip separation grooves 112c are arranged on the milling processing edge 112.

[0043] The blade 100 can be clamped by a mechanical arm through a tool bar, and then drilling, milling and other operations are performed on a workpiece. In the process of drilling the blade 100 by the mechanical arm, the first surface in contact with the workpiece is the bottom surface of the blade body 110, and in the process of milling, the surface in contact with the workpiece is the side surface of the blade body 110. In the blade body 110, the surface close to the multiple blades 100 is the inner surface of the blade body 110, and the surface opposite to the inner surface is the outer surface of the blade body 110.

[0044] The inner face of the tool body 110 is outwardly inclined, so that the edge of the inner face of the tool body 110 can form a blade for cutting the workpiece. Specifically, the blade formed at the intersection of the bottom face and the inner face is a drilling blade 111, and the blade formed at the intersection of the side face and the inner face is a milling blade 112.

[0045] Since the number of tool bodies 110 is multiple, the drilling blade 111 is located at the bottom of the tool body 110, and the blade is arranged in a horizontal direction, and the multiple tool blades 100 are arranged in a central axis symmetry around the central axis (tool bar) of the mechanical arm, so the multiple drilling blades 111 are also arranged in a central axis symmetry, so that when the mechanical arm operates the tool blade 100 to rotate, the multiple drilling blades 111 also rotate around the central axis, so that the drilling blade 111 can cut into the workpiece and gradually form a hole. The horizontal arrangement of the drilling blade 111 makes the bottom of the hole formed after drilling more flat, which is beneficial to maintaining the consistency of the hole diameter and the accuracy of the depth during drilling. Moreover, since the multiple tool bodies 110 are arranged in a central axis symmetry, the drilling blade 111 can maintain balance during rotation, ensuring the stability and accuracy of the drilling process.

[0046] The milling blade 112 is located at the side face of the tool body 110, and the blade is arranged in a vertical direction. When the tool blade 100 rotates and moves along the surface of the workpiece, the milling blade 112 can mill the workpiece material to realize the milling function, and the vertical arrangement of the milling blade 112 also makes the milling of the workpiece surface more flat. By outwardly inclining the inner face of the tool body 110, the milling blade 112 can better adapt to the workpiece surface during milling, improving the milling efficiency and processing quality.

[0047] By opening a chip breaker groove 112c on each milling blade 112 of the tool body 110, the chips generated on each milling blade 112 can be discharged through the respective chip breaker groove 112c, effectively solving the problem of chip accumulation during processing, reducing the friction and heat accumulation between the tool and the workpiece, thereby avoiding tool damage or processing quality deterioration caused by chip accumulation.

[0048] Preferably, the rotation direction of the central axis is consistent with the inclination direction of the inner face, so that the milling blade 112 can better cut into the surface of the workpiece. Thus, the tool blade 100 includes multiple tool bodies 110, each of which can mill and drill the workpiece, thereby improving the efficiency of the tool blade 100 in milling and drilling.

[0049] In this application, the vertical direction refers to the direction in which the tool contacts the workpiece for drilling, and the horizontal direction is perpendicular to the vertical direction.

[0050] In an example, the relief surface of the milling cutting edge 112 comprises a first milling relief surface 112a and a second milling relief surface 112b connected to each other, the first milling relief surface 112a and the second milling relief surface 112b are formed with a first obtuse angle, the first milling relief surface 112a is connected to the inner surface, and the chip breaker groove 112c is arranged on the first milling relief surface 112a. The relief surface refers to the surface of the tool that interacts with and is opposite to the machined surface of the workpiece. Specifically, the relief surface of the milling cutting edge 112 is provided as two first milling relief surfaces 112a and second milling relief surfaces 112b connected to each other, and since the first milling relief surface 112a and the second milling relief surface 112b form a first obtuse angle, the chips generated during the milling operation of the workpiece by the milling cutting edge 112 can be discharged at the second milling surface, reducing the possibility of chips adhering to the surface of the workpiece, reducing the probability of the occurrence of the decrease of the machining precision and the deterioration of the surface quality of the workpiece, and timely removing the chips can reduce the friction between the milling cutting edge 112 and the chips, reduce the wear rate of the milling cutting edge 112, thereby prolonging the service life of the tool body 110, and the like.

[0051] Since the first milling relief surface 112a and the inner surface are connected, that is, the milling cutting edge 112 is located at the junction of the first milling relief surface 112a and the inner surface, by arranging the chip breaker groove 112c on the first milling relief surface 112a, it is more conducive to the discharge of the chips generated when the milling cutting edge 112 processes the workpiece.

[0052] Preferably, the number of chip breaker grooves 112c is multiple, and the multiple chip breaker grooves 112c are arranged on the milling cutting edge 112 in a spaced manner. By arranging multiple chip breaker grooves 112c in a spaced manner, it is conducive to the uniform distribution and effective discharge of the chips, and further improves the stability and efficiency of the machining process.

[0053] In one example, the drilling cutting edge 111 includes a first drilling cutting edge 111a and a second drilling cutting edge 111b connected to each other. The first drilling cutting edge 111a is connected to the milling cutting edge 112. In the vertical direction, the second drilling cutting edge 111b is inclined away from the bottom surface of the tool body 110. Specifically, by configuring the drilling cutting edge 111 into two interconnected first drilling cutting edge 111a and second drilling cutting edge 111b, and by vertically tilting the second drilling cutting edge 111b away from the bottom surface of the tool body 110, a gap is formed between the second drilling cutting edge 111b and the surface of the workpiece in the vertical direction during the drilling process where the first drilling cutting edge 111a contacts the workpiece to complete the drilling. As a result, the chips generated during the drilling process can be discharged from the second drilling cutting edge 111b, thereby reducing the possibility of chips adhering to the workpiece surface, reducing the probability of decreased machining accuracy and deterioration of workpiece surface quality, and timely removal of chips can reduce the friction between the drilling cutting edge 111 and the chips, reduce the wear rate of the milling cutting edge 112, and thus extend the service life of the tool body 110.

[0054] Specifically, in one example, the second drilling cutting edge 111b is inclined away from the inner surface in the horizontal direction. Similarly, the second drilling cutting edge 111b is inclined away from the inner surface in the horizontal direction, so that the second drilling cutting edge 111b forms a gap with the workpiece surface in both the horizontal and vertical directions. This is more conducive to the discharge of chips, thereby better reducing the friction between the drilling cutting edge 111 and the chips, reducing the wear rate of the milling cutting edge 112, and thus extending the service life of the tool body 110.

[0055] More specifically, each of the first drilling cutting edges 111a is staggered. By staggering the first drilling cutting edges 111a in the multiple tool bodies 110, the possibility of mutual interference between the first drilling cutting edges 111a in each tool body 110 can be reduced, making it easier for the tool body 110 to process the workpiece.

[0056] Optionally, in one example, the tool body 110 has a fixing hole 113 extending through its inner and outer surfaces. By providing the fixing hole 113 extending through the inner and outer surfaces of the tool body 110, multiple tool bodies 110 can be fixed through the fixing hole 113, thereby improving the stability of the cutting tool 100 when machining the workpiece.

[0057] Optionally, in one example, a cooling groove 115 is formed on the outer side of the tool body 110, wherein the outer and inner surfaces are arranged opposite to each other, and the outer side refers to the side of the tool facing the workpiece (away from the other tool body) during milling. By forming the cooling groove 115 on the outer side of the tool body 110, coolant can flow along the cooling groove 115 to the drilling cutting edge 111 and the milling cutting edge 112.

[0058] Example 2:

[0059] There are two blade bodies 110, and the fixing holes 113 of the two blade bodies 110 are concentrically arranged. Fixing members pass through the fixing holes 113 of each blade body 110 in sequence, connecting the inner surfaces of the two blade bodies 110 to each other. By arranging the fixing holes 113 of the two blade bodies 110 concentrically, the fixing members can pass through the two fixing holes 113 in sequence to fix the blade 100 together, thereby enabling the robotic arm to operate the blade 100.

[0060] In one example, the two blade bodies 110 are integrated into one unit. By integrating the two blade bodies 110 into one unit, the structural strength of the blade bodies 110 is improved, and the service life of the blade bodies 110 is extended.

[0061] The above embodiment 2 includes all the structures of embodiment 1 and can implement all the processes in embodiment 1 / 2, achieving the same technical effect. To avoid repetition, it will not be described again here.

[0062] Example 3:

[0063] The cutting tool includes any one of the cutting tool bodies 110 in Embodiment 1 or 2 above, and also includes a cutting tool shank, which is connected to the cutting blade 100 by a fixing member.

[0064] In the above embodiment 3, each structure in the above embodiment 1 and / or 2 is included, and each process in the above embodiment 1 and / or 2 can be implemented, achieving the same technical effect. To avoid repetition, it will not be described again here.

[0065] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A blade, characterized in that, The blade includes: The blade comprises multiple blade bodies, which are interconnected and arranged symmetrically along a central axis. The inner surface of the cutting tool is inclined to the outer surface of the cutting tool so that a drilling cutting edge is formed at the junction of the bottom surface and the inner surface of the cutting tool. The inner surface is inclined to the outer surface so that a milling cutting edge is formed at the junction of the side surface and the inner surface of the cutting tool. The cutting edge of the drilling cutting edge is arranged in a horizontal direction, and the cutting edge of the milling cutting edge is arranged in a vertical direction. The horizontal direction and the vertical direction are perpendicular to each other. The milling cutting edge is provided with chip-breaking grooves.

2. The blade as described in claim 1, characterized in that, The flank face of the milling cutting edge includes a first milling flank face and a second milling flank face that are connected to each other. The first milling flank face and the second milling flank face form a first obtuse angle. The first milling flank face is connected to the inner surface. The chip-breaking groove is disposed on the first milling flank face.

3. The blade as described in claim 2, characterized in that, The number of chip-dividing grooves is multiple, and the multiple chip-dividing grooves are spaced apart on the milling cutting edge.

4. The blade as described in claim 1, characterized in that, The drilling cutting edge includes a first drilling cutting edge and a second drilling cutting edge connected to each other. The first drilling cutting edge is connected to the milling cutting edge. In the vertical direction, the second drilling cutting edge is inclined away from the bottom surface of the tool body.

5. The blade as described in claim 4, characterized in that, In the horizontal direction, the second drilling cutting edge is inclined away from the inner surface.

6. The blade as described in claim 5, characterized in that, Each of the first drilling cutting edges is offset.

7. The blade as claimed in claim 1, characterized in that, The blade body has a fixing hole that extends through the inner surface and the outer surface; The number of the blades is two, and the fixing holes of the two blades are concentrically arranged; The fixing members pass through the fixing holes of each of the blades in sequence, connecting the inner surfaces of the two blades to each other.

8. The blade as claimed in claim 7, characterized in that, The two blades are integrated into one unit.

9. The blade as claimed in any one of claims 1-8, characterized in that, The outer surface of the blade body is provided with a cooling groove, and the outer surface and the inner surface are arranged opposite to each other.

10. A cutting tool, characterized in that, The cutting tool includes the blade as described in any one of claims 1-9.

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