Milling cutter

Abstract

The utility model relates to the technical field of machining tools, and discloses a milling cutter which comprises a cutter handle, a cutter head, a plurality of containing seats, a plurality of blades and a plurality of fasteners, the cutter head is coaxially connected with the cutter handle, a plurality of chip grooves and a plurality of containing grooves are formed in the peripheral side of the cutter head at equal intervals and communicate with the containing grooves in a one-to-one correspondence mode, and the cutter head is coaxially connected with the cutter handle. The multiple containing bases and the multiple containing grooves are arranged in a one-to-one correspondence mode, an open groove is formed in the face, facing the corresponding chip discharging groove, of each containing base, the multiple blades and the multiple containing bases are arranged in a one-to-one correspondence mode, and each blade is arranged in the corresponding open groove and protrudes out of the cutter head. The plurality of fasteners are in one-to-one correspondence with the plurality of blades and the plurality of accommodating seats, and each fastener penetrates through the corresponding blade and the corresponding accommodating seat and is connected with the cutter head. According to the milling cutter, when different workpieces are machined, only different containing bases and blades need to be replaced, the cutter handle and the cutter head do not need to be replaced, the matching cost of the cutter handle and the cutter head is reduced, and the cost of the milling cutter is reduced.

Description

Technical Field

[0001] This application relates to the field of machining tool technology, specifically to a milling cutter. Background Technology

[0002] In manufacturing, milling cutters are typically used to machine workpieces. Currently, milling cutters usually come in a fixed configuration with inserts and cutter heads. However, manufacturing often requires machining non-standard workpieces. In such cases, the limited range of milling cutters necessitates the production of more inserts and cutter heads to process these non-standard workpieces, leading to increased costs for milling cutters. Utility Model Content

[0003] In view of the above, it is necessary to propose a milling cutter to reduce the cost of milling cutters.

[0004] This application provides a milling cutter, including:

[0005] The handle has a central axis;

[0006] The cutter head is coaxially connected to the cutter handle. The periphery of the cutter head is provided with multiple chip removal grooves and multiple receiving grooves at equal intervals around the central axis. The multiple chip removal grooves and the multiple receiving grooves correspond one-to-one, and each chip removal groove is connected to the corresponding receiving groove.

[0007] Multiple receiving seats correspond one-to-one with multiple receiving slots, and each receiving seat is disposed in the corresponding receiving slot. Each receiving seat has an opening slot on the side facing the corresponding chip removal slot.

[0008] Multiple blades are provided, each corresponding to one of the multiple receiving seats. Each blade is disposed in the corresponding opening slot, and the blade protrudes from the blade disc along the central axis.

[0009] Multiple fasteners correspond one-to-one with multiple blades and multiple receiving seats. Each fastener passes through the corresponding blade and the corresponding receiving seat and is connected to the cutter head.

[0010] In some embodiments, the cutter head has a locking hole extending along the central axis and penetrating the cutter head, and the side of the cutter shank facing the cutter head has a connecting hole extending along the central axis. The milling cutter also includes a locking member that passes through the locking hole and is connected to the connecting hole.

[0011] In some embodiments, each blade is provided with an insertion hole, each receiving seat is provided with a insertion hole, and the periphery of the blade disc is also provided with a plurality of connecting holes at equal intervals around the central axis. The plurality of connecting holes correspond one-to-one with the plurality of receiving slots, and each connecting hole is connected to the corresponding receiving slot. Each connecting hole is sequentially connected to the corresponding insertion hole and the corresponding insertion hole. Each fastener passes through the corresponding insertion hole and the corresponding insertion hole and is connected to the corresponding connecting hole.

[0012] In some embodiments, the end face of the cutter head facing away from the cutter shank is configured as a spherical surface recessed toward the cutter shank.

[0013] In some embodiments, each of the opening slots gradually narrows from the end closest to the corresponding chip removal slot to the end furthest from the corresponding chip removal slot.

[0014] In some embodiments, the blade has a circular cross-sectional shape along the central axis.

[0015] In some embodiments, the blade has a rhomboid cross-sectional shape along the central axis.

[0016] In some embodiments, the blade has a triangular cross-sectional shape along the central axis.

[0017] In some embodiments, the number of the chip removal groove, the receiving groove, the receiving seat, the blade, and the fastener are all four.

[0018] In some embodiments, each of the accommodating seats is made of a base metal.

[0019] The aforementioned milling cutter, by setting the insert in the opening slot of the corresponding receiving seat to form a quick-change assembly, can be adapted to process different non-standard workpieces by changing different assemblies. When processing different non-standard workpieces, only different assemblies need to be changed, without the need to change the tool holder and cutter head, thus reducing the matching cost of the tool holder and cutter head, thereby reducing the cost of the milling cutter. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the milling cutter provided in the embodiments of this application.

[0021] Figure 2 yes Figure 1 An exploded view of the milling cutter shown.

[0022] Figure 3 This is a schematic diagram of another receiving seat and blade provided in an embodiment of this application.

[0023] Figure 4This is a schematic diagram of another type of receiving seat and blade provided in the embodiments of this application.

[0024] Explanation of main component symbols: milling cutter 100, tool holder 10, connecting hole 12, central axis 20, cutter head 30, chip removal groove 32, receiving groove 34, locking hole 36, mating hole 38, receiving seat 40, 40a, 40b, opening groove 42, 42a, 42b, insertion hole 44, opening 46, 46a, 46b, insert 50, 50a, 50b, insertion hole 52, fastener 60, locking component 70. Detailed Implementation

[0025] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0026] In the description of this application, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, it should be noted that "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the two components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between 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 according to the specific circumstances.

[0028] The following will describe some embodiments of this application in detail with reference to the accompanying drawings.

[0029] Please see Figure 1 This application provides a milling cutter 100. The milling cutter 100 includes a cutter holder 10, a cutter head 30, a plurality of receiving seats 40, a plurality of inserts 50, and a plurality of fasteners 60. It can be understood that, for ease of illustration, Figure 1 and Figure 2 Only a matching housing 40, a blade 50, and a fastener 60 are shown; obviously, this is not a limitation on the embodiments of this application.

[0030] Please refer to the above. Figure 2 The tool holder 10 has a central axis 20. The cutter head 30 is coaxially connected to the tool holder 10, that is, the cutter head 30 and the tool holder 10 have the same central axis 20. The diameter of the cutter head 30 is larger than the diameter of the tool holder 10. Multiple chip removal grooves 32 and multiple receiving grooves 34 are equally spaced around the central axis 20 on the periphery of the cutter head 30. The multiple chip removal grooves 32 and multiple receiving grooves 34 are respectively arranged one-to-one, and each chip removal groove 32 is connected to the corresponding receiving groove 34. The chip removal grooves 32 are used to discharge the chips generated during milling when the milling cutter 100 is machining the workpiece. The receiving grooves 34 are used to accommodate the corresponding receiving seats 40.

[0031] Multiple receiving seats 40 are respectively and multiple receiving slots 34 are respectively provided one-to-one, and each receiving seat 40 is adapted to be set in the corresponding receiving slot 34. Each receiving seat 40 has an opening slot 42 on the side facing the corresponding chip removal slot 32. The opening slot 42 has an opening 46. The receiving seat 40 is adapted to be set in the corresponding receiving slot 34. Each surface of the receiving seat 40 is flush with the corresponding surface of the cutter head 30. It can also be understood that the receiving seat 40 is inserted into the corresponding receiving slot 34 to fill the corresponding receiving slot 34.

[0032] Multiple cutting blades 50 are respectively and corresponding to multiple receiving seats 40. Each cutting blade 50 is adapted to be set in the corresponding opening slot 42, and the cutting blade 50 protrudes from the cutter head 30 along the central axis 20. It can be understood that the cutting blade 50 protrudes from the opening slot 42 and the cutter head 30 through the opening 46. The cutter head 30 also protrudes from the cutter head 30 in a direction perpendicular to the central axis 20, so that the cutting blade 50 can perform milling on the workpiece.

[0033] Multiple fasteners 60 are provided in a one-to-one correspondence with multiple blades 50 and multiple receiving seats 40. Each fastener 60 passes through the corresponding blade 50 and the corresponding receiving seat 40 and is connected to the cutter head 30.

[0034] In this design, by adapting the insert 50 to the opening slot 42 of the receiving seat 40 to form a quick-change assembly, different assemblies can be formed by designing different types and sizes of inserts 50 and receiving seats 40. By changing the assembly, it can be used for milling different workpieces. The fastener 60, cutter head 30 and tool holder 10 can be universal, thereby reducing the cost of the fastener 60, cutter head 30 and tool holder 10, and thus reducing the cost of the milling cutter 100.

[0035] In this embodiment, the number of chip removal grooves 32, receiving grooves 34, receiving seats 40, blades 50, and fasteners 60 are all four. It is understood that in other embodiments, the number of chip removal grooves 32, receiving grooves 34, receiving seats 40, blades 50, and fasteners 60 may be more or fewer, for example, two, three, five, six, etc. This application does not specifically limit this.

[0036] In this embodiment, the cutter head 30 has a locking hole 36 extending along the central axis 20 and penetrating the cutter head 30. The side of the cutter shank 10 facing the cutter head 30 has a connecting hole 12 extending along the central axis 20. The milling cutter 100 also includes a locking member 70, which passes through the locking hole 36 and is connected to the connecting hole 12. The locking hole 36 can be a stepped hole, the connecting hole 12 can be a threaded hole, and the locking member 70 can be a screw. The locking member 70 passes through the locking hole 36 and is threadedly connected to the connecting hole 12, and is housed within the locking hole 36. Thus, by setting the aforementioned locking hole 36, connecting hole 12, and locking element 70, the cutter head 30 and the tool holder 10 are fixedly connected. The cutter head 30 and the tool holder 10 are detachable, and different cutter heads 30 can be replaced according to different production needs, reducing the cost of the tool holder 10 and thus reducing the cost of the milling cutter 100. In addition, by placing the locking element 70 within the locking hole 36, the locking element 70 is prevented from interfering with the milling process due to protruding from the cutter head 30.

[0037] Understandably, in other embodiments, the tool holder 10 and the cutter head 30 can also be fixedly connected by welding, or the tool holder 10 and the cutter head 30 can be integrally formed. When the milling cutter 100 is in use, since different assemblies can be replaced to be suitable for different production processes, even if the tool holder 10 and the cutter head 30 are welded or integrally formed, the cost of the fastener 60, the cutter head 30 and the tool holder 10 can still be reduced.

[0038] In this embodiment, the end face of the cutter head 30 facing away from the tool holder 10 is configured as a spherical surface concave towards the tool holder 10. Thus, by defining the surface shape of the end face of the cutter head 30 facing away from the tool holder 10, it is beneficial for the cutting insert 50 of the milling cutter 100 to protrude relatively, thereby facilitating the milling operation of the workpiece by the milling cutter 100 and preventing the end face of the cutter head 30 facing away from the tool holder 10 from interfering with the milling process.

[0039] In this embodiment, each opening slot 42 gradually tapers from the end closest to the corresponding chip removal slot 32 to the end furthest from the corresponding chip removal slot 32. Correspondingly, the cross-sectional area of ​​each blade 50 gradually tapers from the end closest to the corresponding chip removal slot 32 to the end furthest from the corresponding chip removal slot 32, wherein the cross-section is parallel to the central axis 20. Thus, by defining the type of opening slot 42, the blade 50 can be more easily assembled into the opening slot 42, improving the assembly efficiency of the blade 50 and the cutter head 30.

[0040] In this embodiment, each receiving seat 40 is made of raw metal, which can be understood as unhardened metal. Thus, by limiting the material of the receiving seat 40, the vibration damping performance of the receiving seat 40 is improved, thereby enhancing the overall vibration resistance of the end mill 100 and the machining life of the cutting tool 50.

[0041] In this embodiment, each blade 50 has an insertion hole 52, each receiving seat 40 has an insertion hole 44, and the circumference of the cutter head 30 is also provided with a plurality of engagement holes 38 at equal intervals around the central axis 20. The plurality of engagement holes 38 correspond one-to-one with the plurality of receiving grooves 34, and each engagement hole 38 communicates with the corresponding receiving groove 34. Each engagement hole 38 is sequentially connected to the corresponding insertion hole 44 and the corresponding insertion hole 52. Each fastener 60 passes through the corresponding insertion hole 52 and the corresponding insertion hole 44 and is connected to the corresponding engagement hole 38. The engagement hole 38 can be a threaded hole, the insertion hole 52 can be a conical hole, and the fastener 60 can be a countersunk screw. The fastener 60 passes through the insertion hole 52, the insertion hole 44 and the engagement hole 38 in sequence and is threadedly connected to the engagement hole 38. The fastener 60 is housed in the insertion hole 52. Thus, by setting the aforementioned insertion hole 52, insertion hole 44 and connecting hole 38, the cutter head 30, housing 40, cutting tool 50 and fastener 60 are fixedly connected. By setting the fastener 60 as a countersunk screw, the fastener 60 is prevented from interfering with the milling process due to protruding from the cutting tool 50.

[0042] In this embodiment, the cross-sectional shape of the blade 50 along the central axis 20 is circular, specifically an annular shape. The opening groove 42 of the receiving seat 40 is approximately circular and has an opening 46. The opening groove 42 substantially seals and encloses the blade 50, and the blade 50 protrudes to the outside of the opening groove 42 through the opening 46. Thus, by defining the cross-sectional shape of the blade 50 as circular, the milling cutter 100 can perform milling operations on the corresponding workpiece.

[0043] Understandably, please see Figure 3 In other embodiments, the cross-sectional shape of the insert 50a along the central axis 20 can also be approximately rhomboid, with each of the four corners of the rhombus being approximately rounded. The opening slot 42a of the receiving seat 40a is approximately rhomboid and has an opening 46a, which substantially seals and encloses the insert 50a, with the insert 50a protruding outward from the opening slot 42a through the opening 46a. Thus, by defining the cross-sectional shape of the insert 50a as rhomboid, the milling cutter 100 can perform milling operations on the corresponding workpiece.

[0044] Understandably, please see Figure 4In other embodiments, the cross-sectional shape of the insert 50b along the central axis 20 can also be approximately triangular, with each of the three angles being approximately rounded. The opening slot 42b of the receiving seat 40b is approximately a three-sided slot with an opening 46b, which substantially seals and encloses the insert 50b, and the insert 50b protrudes to the outside of the opening slot 42b through the opening 46b. Thus, by defining the cross-sectional shape of the insert 50b as triangular, the milling cutter 100 can perform milling operations on the corresponding workpiece.

[0045] Understandably, in other embodiments, the cross-sectional shape of the blade 50 along the central axis 20 may also be other shapes, such as ellipse, polygon, etc.

[0046] The milling cutter 100 provided in this application embodiment forms a quick-change assembly by adapting the insert 50 to the opening slot 42 of the corresponding receiving seat 40. By changing different assemblies, it can be adapted to process different non-standard workpieces. When processing different non-standard workpieces, only different assemblies need to be replaced, without replacing the tool holder 10 and the cutter head 30, thus reducing the limitations of the tool holder 10 and the cutter head 30. The combination range of the insert 50, receiving seat 40, cutter head 30 and tool holder 10 is wider, which can be used for various inserts 50 and processing needs, reducing the matching cost of the tool holder 10 and the cutter head 30, thereby reducing the cost of the milling cutter 100. Moreover, the milling cutter 100 has the advantage of quick-change insert 50, which can be quickly adapted to the processing of different workpieces and has high processing application value.

[0047] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this application.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A milling cutter, characterized in that, include: The handle has a central axis; The cutter head is coaxially connected to the cutter handle. The periphery of the cutter head is provided with multiple chip removal grooves and multiple receiving grooves at equal intervals around the central axis. The multiple chip removal grooves and the multiple receiving grooves correspond one-to-one, and each chip removal groove is connected to the corresponding receiving groove. Multiple receiving seats correspond one-to-one with multiple receiving slots, and each receiving seat is disposed in the corresponding receiving slot. Each receiving seat has an opening slot on the side facing the corresponding chip removal slot. Multiple blades are provided, each corresponding to one of the multiple receiving seats. Each blade is disposed in the corresponding opening slot, and the blade protrudes from the blade disc along the central axis. Multiple fasteners correspond one-to-one with multiple blades and multiple receiving seats. Each fastener passes through the corresponding blade and the corresponding receiving seat and is connected to the cutter head.

2. The milling cutter as described in claim 1, characterized in that, The cutter head has a locking hole extending along the central axis and penetrating the cutter head. The side of the cutter shank facing the cutter head has a connecting hole extending along the central axis. The milling cutter also includes a locking member that passes through the locking hole and is connected to the connecting hole.

3. The milling cutter as described in claim 1, characterized in that, Each blade has an insertion hole, each receiving seat has an insertion hole, and the circumference of the blade disc also has multiple connecting holes spaced at equal intervals around the central axis. Each connecting hole corresponds to a corresponding receiving groove, and each connecting hole is connected to the corresponding receiving groove. Each connecting hole is sequentially connected to the corresponding insertion hole and the corresponding insertion hole. Each fastener passes through the corresponding insertion hole and the corresponding insertion hole and is connected to the corresponding connecting hole.

4. The milling cutter as described in claim 1, characterized in that, The end face of the cutter head away from the handle is configured as a spherical surface that is concave towards the handle.

5. The milling cutter as described in claim 1, characterized in that, Each of the opening slots gradually narrows from the end closest to the corresponding chip removal slot to the end furthest from the corresponding chip removal slot.

6. The milling cutter as described in claim 5, characterized in that, The blade has a circular cross-sectional shape along its central axis.

7. The milling cutter as described in claim 5, characterized in that, The blade has a rhomboid cross-sectional shape along its central axis.

8. The milling cutter as described in claim 5, characterized in that, The blade has a triangular cross-sectional shape along its central axis.

9. The milling cutter as described in claim 1, characterized in that, The number of the chip removal groove, the receiving groove, the receiving seat, the blade, and the fastener are all four.

10. The milling cutter as claimed in claim 1, characterized in that, Each of the aforementioned housings is made of raw metal.

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