A drill-mill cutter

Abstract

The utility model discloses a drill and mill, it includes the head and the shank, the head fixed connection is in the shank, be equipped with a plurality of milling portion and a plurality of chip removal portion on the head, wherein, every milling portion is adjacent with every chip removal portion, and the milling portion includes a plurality of the blade that arranges in ladder type, make this drill and mill simple structure, have good processing stability and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of machining parts, and in particular to a drilling and milling cutter. Background Technology

[0002] Traditional milling cutters use the same cutting edge for milling, regardless of the depth or position of the cutter. This can accelerate the wear of the cutting edge and reduce the service life of the milling cutter. Utility Model Content

[0003] The purpose of this utility model is to address the technical problems existing in the background art by proposing a drilling and milling cutter.

[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0005] A drill and milling cutter includes a cutter head and a cutter shank. The cutter head is fixedly connected to the cutter shank. The cutter head is provided with multiple milling sections and multiple chip removal sections, wherein each milling section is adjacent to each chip removal section, and the milling section includes multiple cutting edges arranged in a stepped manner.

[0006] Preferably, each milling section and each chip removal section are arranged circumferentially around the center of the cutting head.

[0007] Preferably, the multiple blades are integrated into a single structure.

[0008] Preferably, the milling section further includes chip breaker grooves, which are disposed on the cutting surfaces of each cutting edge.

[0009] Preferably, the cross-sectional shape of the chip breaking groove is semi-teardrop-shaped.

[0010] Preferably, there are two milling sections and two chip removal sections, and the two milling sections are symmetrical about the center of the cutting head.

[0011] Preferably, the material selection for the cutting head includes superhard materials or superhard composite materials.

[0012] Compared with the prior art, the utility model has the following beneficial technical effects: it includes a cutter head and a cutter shank, the cutter head is fixedly connected to the cutter shank, the cutter head is provided with multiple milling parts and multiple chip removal parts, wherein each milling part is adjacent to each chip removal part, and the milling part includes multiple cutting edges arranged in a stepped manner, which makes the drill and milling cutter simple in structure and has good machining stability and efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an embodiment provided by this utility model;

[0014] Figure 2 Structural diagram of the embodiments provided by this utility model Figure 1 ;

[0015] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0016] Figure 4 This is an exploded view of an embodiment provided by this utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the milling part in the embodiment provided by this utility model;

[0018] Figure 6 for Figure 5 A magnified view of part B in the middle.

[0019] Icon labels:

[0020] 100 Tool head, 101 Milling section, 1011 Cutting edge, 1012 Chip breaker, 102 Chip removal section, 200 Tool holder. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or assembly 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 utility model. Furthermore, the terms "first," "second," etc., 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," "second," etc., may explicitly or implicitly include one or more features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a link, or a specific connection; 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; and they can refer to the connection within two groups. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] like Figures 1-6 As shown, this utility model proposes a drill and milling cutter, including a cutter head 100 and a cutter shank 200. The cutter head 100 is fixedly connected to the cutter shank 200. The cutter head 100 is provided with a plurality of milling parts 101 and a plurality of chip removal parts 102. Each milling part 101 is adjacent to each chip removal part 102. The milling part 101 includes a plurality of cutting edges 1011 arranged in a stepped manner.

[0026] It should be noted that the closer the cutting edge 1011 is to the tool holder 200, the greater the distance from the center of the tool head 100. This allows the stepped design to be adapted to the machining of holes with different inner diameters. When milling inner holes, a segmented milling method can be used to distribute the cutting work of each cutting edge 1011, thereby improving the service life of each cutting edge 1011. Furthermore, the milling steps of each cutting edge 1011 are arranged in a reasonable manner, which improves the milling efficiency and stability of the drill and end mill.

[0027] In one embodiment of this application, each milling section 101 and each chip removal section 102 are arranged circumferentially around the center of the cutter head 100.

[0028] It should be noted that the milling section 101 and the chip removal section 102 are arranged as a group, and multiple groups can be used, depending on the actual parts being processed or the application scenario. In this embodiment, two groups are used, namely, two milling sections 101 and two chip removal sections 102 are provided, and the two milling sections 101 are symmetrical about the center of the cutter head 100. While achieving efficient milling, a large amount of chips can also be easily discharged from the two chip removal sections 102, avoiding chip blockage during processing and affecting the efficiency of the milling section 101.

[0029] In one embodiment of this application, multiple cutting edges 1011 are integrated into a single structure to facilitate material selection and processing of the cutting edges 1011. Furthermore, different numbers of cutting edges 1011 can be customized according to requirements, which improves the configuration flexibility of the milling unit 101 and keeps costs under control.

[0030] In one embodiment of this application, the milling section 101 further includes a chip breaker groove 1012, which is disposed on the cutting surface of each cutting edge 1011.

[0031] The cross-sectional shape of the chip breaker groove 1012 is semi-teardrop shaped.

[0032] It should be noted that the function of the chip breaker groove 1012 is to break the chips produced by the cutting edge 1011 during milling, preventing the accumulation of these chips. The chip breaker groove 1012 is set on the cutting surface of the cutting edge 1011, which can further reduce the contact area between the cutting edge 1011 and the workpiece, increase the cutting force of the drill and milling cutter, and improve the chip breaking and chip removal efficiency of the chip breaker groove 1012. This ensures that the drill and milling cutter effectively breaks the chips during the cutting process, removes sufficient heat, and also reduces the need for the drill and milling cutter to lift the cutter repeatedly to remove chips. Of course, the cross-sectional shape of the chip breaker groove 1012 can be not only semi-teardrop-shaped, but also other shapes.

[0033] In one embodiment of this application, the material of the cutter head 100 includes superhard materials or superhard composite materials.

[0034] It should be noted that the materials of the tool head 100 include, but are not limited to, CBN, PCBN, PCD, MCD, ceramics, etc., while the materials of the tool holder include, but are not limited to, 9SiCr, tungsten steel and other cemented carbide, drill and milling cutter steel, etc.

[0035] It should be noted that the above descriptions are one or more embodiments provided in conjunction with specific content, and do not imply that the specific implementation of this utility model is limited to these descriptions. Any methods or structures that are similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered within the scope of protection of this utility model.

Claims

1. A drill-mill cutter comprising a cutter head (100) and a cutter shank (200), the cutter head (100) being fixedly connected to the cutter shank (200), characterized in that, The cutting head (100) is provided with a plurality of milling portions (101) and a plurality of chip removal portions (102), wherein each of the milling portions (101) is adjacent to each of the chip removal portions (102); The milling section (101) includes a plurality of cutting edges (1011) arranged in a stepped manner.

2. A drill-mill according to claim 1, characterized in that Each of the milling portions (101) and each of the chip removal portions (102) are arranged circumferentially around the center of the cutting head (100).

3. A drill-mill according to claim 2, characterized in that The multiple blades (1011) are integrated into one structure.

4. A drill-mill according to claim 3, characterized in that The milling section (101) further includes a chip breaker groove (1012), which is disposed on the cutting surface of each of the cutting edges (1011).

5. A drill-mill according to claim 4, characterized in that The cross-sectional shape of the chip breaking groove (1012) is semi-teardrop shaped.

6. The drill-mill cutter according to claim 1, wherein Two milling sections (101) and two chip removal sections (102) are provided, and the two milling sections (101) are symmetrical about the center of the cutting head (100).

7. The drill-mill cutter according to claim 1, wherein The material selection for the cutting head (100) includes superhard materials or superhard composite materials.

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