Sleeving, milling and forming integrated cutter

Abstract

The utility model relates to the technical field of cutters, in particular to a milling and forming integrated cutter. According to the technical scheme, the milling cutter comprises a milling cutter body, and further comprises a connector and a cutting tool bit which are arranged on the milling cutter body, the first cutting blades, the second cutting blades, the third cutting blades and the fourth cutting blades are welded on the cutting tool bit and are in 180-degree symmetry. According to the utility model, the structures of the cutting tool bit, the first cutting blades, the second cutting blades, the third cutting blades, the fourth cutting blades and the like are matched, so that each pair of the first cutting blades, the second cutting blades, the third cutting blades and the fourth cutting blades are distributed with different processing contents, and complex holes are formed in one step; and the first cutting blade, the second cutting blade, the third cutting blade and the fourth cutting blade are all made of welding PCD materials, and the center inner cooling design is adopted, so that high machining efficiency and good surface roughness are achieved, and the service life of the milling cutter body is greatly prolonged.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, and in particular to a one-piece milling tool. Background Technology

[0002] A milling cutter with a forming tool (also known as a milling cutter with a forming tool) is a composite tool that integrates the functions of a milling cutter and a forming tool. It is typically used in milling processes in machining, especially for machining complex features such as internal holes, external contours, and grooves. Its main feature is combining two tools with different functions into one, thereby improving machining efficiency and accuracy. However, some traditional cutting tools have fewer inserts on the cutting head. Fewer inserts not only result in a smaller cutting area but also limit the feed rate and cutting speed, leading to lower cutting efficiency. Furthermore, tool wear with fewer inserts is often localized and concentrated. Because each insert bears a higher cutting pressure, it is also prone to premature wear in certain areas, affecting tool life and machining accuracy. Utility Model Content

[0003] The purpose of this invention is to address the problem that some traditional cutting tools have fewer cutting inserts on their heads, resulting in lower cutting efficiency and premature wear of the inserts, affecting tool life and machining accuracy. This invention proposes a one-piece milling cutter.

[0004] The technical solution of this utility model is as follows: a milling cutter with an integrated forming mechanism, comprising a milling cutter body, and further comprising: a connector and a cutting head disposed on the milling cutter body; multiple pairs of first cutting inserts, second cutting inserts, third cutting inserts and fourth cutting inserts symmetrically arranged at 180° welded to the cutting head; and a connecting mechanism installed at the connecting end of the connector and the cutting head to enable quick assembly and disassembly between the connector and the cutting head.

[0005] Optionally, the first cutting blade has a bottom cutting edge for cutting and reaming holes, the second cutting blade has a pair of chamfers for reaming holes, the outer side of the third cutting blade is round, and the outer edge of the fourth cutting blade has a rounded chamfer and a cutting edge.

[0006] Optionally, the connecting mechanism includes a mounting head fixedly connected to the end of the cutting head, a connecting sleeve block fixedly connected to one end of the connecting head near the cutting head, a mounting hexagonal slot being provided on the connecting sleeve block, and a hexagonal insert block tightly inserted into the mounting hexagonal slot being fixedly connected to the mounting head.

[0007] Optionally, the connecting mechanism further includes a mounting groove formed on the connecting sleeve block, with a mounting screw spirally connected inside the mounting groove, and a connecting slot for inserting the end of the mounting screw on the hexagonal insert block.

[0008] Optionally, one end of the mounting screw inserted into the connection slot is provided with a tightly inserted insert.

[0009] Optionally, the insertion rod at the end of the mounting screw is provided with a ball plug.

[0010] Optionally, the thickness of the hexagonal insert is the same as the depth of the mounting hexagonal slot.

[0011] In summary, this application includes at least one of the following beneficial technical effects:

[0012] This invention utilizes the combination of a cutting head, a first cutting insert, a second cutting insert, a third cutting insert, and a fourth cutting insert to assign different machining tasks to each pair of first, second, third, and fourth cutting inserts, enabling complex hole machining to be completed in one step. Furthermore, the first, second, third, and fourth cutting inserts are all made of welded PCD material and feature a central internal cooling design, resulting in high machining efficiency and good surface roughness, which greatly extends the life of the milling cutter body. Attached Figure Description

[0013] Figure 1 A schematic diagram of the structure of a sleeve milling forming integrated tool of this utility model is provided;

[0014] Figure 2 for Figure 1 Partial structural diagram;

[0015] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure of the connection between the hexagonal insert and the connector.

[0016] Reference numerals: 1. First cutting insert; 2. Second cutting insert; 3. Third cutting insert; 4. Fourth cutting insert; 5. Milling cutter body; 51. Connector; 52. Cutting head; 53. Connecting sleeve; 54. Mounting head; 55. Hexagonal insert; 56. Mounting slot; 57. Mounting screw; 58. Connecting slot; 59. Mounting hexagonal slot. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0018] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0019] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the 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 utility model 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral 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 internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example

[0024] like Figures 1 to 3As shown, this utility model proposes an integrated milling cutter, including a milling cutter body 5, and further including: a connector 51 and a cutting head 52 disposed on the milling cutter body 5; multiple pairs of first cutting inserts 1, second cutting inserts 2, third cutting inserts 3, and fourth cutting inserts 4, arranged 180° symmetrically, welded to the cutting head 52. The first cutting inserts 1, second cutting inserts 2, third cutting inserts 3, and fourth cutting inserts 4 all utilize welded PCD material and a central internal cooling design, which results in high machining efficiency and good surface roughness, significantly improving the lifespan of the milling cutter body 5. Welded PCD material generally refers to the process of joining or fixing polycrystalline diamond material with other materials (such as metal substrates) through welding. PCD is a composite material with extremely high hardness and wear resistance, widely used in tools, molds, and other parts requiring high wear resistance. The central internal cooling design generally refers to the technology of using internal cooling channels to provide coolant during the machining process of the milling cutter body 5, especially the cutting inserts. The purpose of this design is to improve cutting efficiency, extend the life of the milling cutter body 5, and improve machining quality by allowing coolant to flow directly to the cutting area of ​​the milling cutter body 5 during the cutting process; the connecting mechanism is installed at the connecting end of the connector 51 and the cutting head 52 to enable quick assembly and disassembly between the connector 51 and the cutting head 52.

[0025] Furthermore, the first cutting insert 1 has a bottom-cutting scraper face for reaming holes. Reaming holes typically uses special reamers or inserts for precision machining to ensure that the hole diameter, shape, and surface roughness meet design requirements. The second cutting insert 2 each has a pair of chamfers for reaming holes. The chamfer removes the sharp edges of the hole with a bevel, transforming the edge from a sharp right angle into a small bevel or chamfer. The third cutting insert 3 has a rounded outer edge, which usually refers to the outer edge or shape of the tool being arc-shaped, or the outer edge of the insert forming a circular outline. This design has different purposes and advantages in different machining applications. The fourth cutting insert 4 has a rounded chamfer on its outer edge and a scraper face. The rounded chamfer helps the tool cut into the workpiece more smoothly, reducing the direct contact area between the tool and the material, thereby reducing stress and vibration generated during cutting. This not only reduces the burden on the machine tool and cutting tool but also reduces noise during machining. The scraper face (also called a scraper surface) on the insert is usually designed to improve machining quality, extend tool life, and increase machining efficiency. The cutting edge is part of the cutting tool and usually refers to a special design or shape on the surface of the tool used to remove chips, reduce friction, or optimize cutting performance.

[0026] The connecting mechanism includes a mounting head 54 fixedly connected to the end of the cutting head 52. A connecting sleeve 53 is fixedly connected to one end of the connecting head 51 near the cutting head 52. The connecting sleeve 53 has a hexagonal mounting slot 59. A hexagonal insert 55 is fixedly connected to the mounting head 54, tightly inserted into the hexagonal mounting slot 59. The outer wall of the hexagonal insert 55 is in close contact with the inner wall of the hexagonal mounting slot 59. Its function is to enable precise machining when the rotating connecting sleeve 53 drives the cutting head 52. The thickness of the hexagonal insert 55 is the same as the depth of the hexagonal mounting slot 59.

[0027] Furthermore, the connecting mechanism also includes a mounting groove 56 on the connecting sleeve 53. A mounting screw 57 is spirally connected inside the mounting groove 56. One end of the mounting screw 57, which inserts into the connecting slot 58, has a tightly inserted prong. The prong at the end of the mounting screw 57 has a ball-shaped plug, which makes inserting the end of the mounting screw 57 into the connecting slot 58 easier and more convenient. The hexagonal insert 55 has a connecting slot 58 for inserting the end of the mounting screw 57. The connecting slot 58 contains a thread-locking agent, also called threadlocker or thread-locking adhesive, which is a chemical substance that prevents screws from loosening by forming a strong adhesive layer between the threads. Its function is to fill the thread gaps, fixing the threads together and preventing loosening due to vibration or external force.

[0028] In this embodiment, when a one-piece milling cutter is required, such as... Figure 1 As shown, simply install the connector 51 on the end of the milling cutter body 5 onto the equipment. When the milling cutter body 5 is running, the connector 51 drives the cutting head 52 to rotate through the hexagonal insert 55. The cutting head 52 simultaneously drives multiple pairs of first cutting inserts 1, second cutting inserts 2, third cutting inserts 3, and fourth cutting inserts 4 to rotate. Each pair of first cutting inserts 1, second cutting inserts 2, third cutting inserts 3, and fourth cutting inserts 4 is assigned different machining content, enabling complex hole machining to be completed in one go. Furthermore, the first cutting inserts 1, second cutting inserts 2, third cutting inserts 3, and fourth cutting inserts 4 all use welded PCD material and a central internal cooling design, which has high machining efficiency and good surface roughness, greatly improving the life of the milling cutter body 5. When the cutting head 52 needs to be replaced, simply rotate the mounting screw 57 with a tool. Since the mounting screw 57 and the connecting sleeve 53 are connected by a screw, the insert at the end of the mounting screw 57 can be disengaged from the connecting slot 58 on the hexagonal insert 55, thereby allowing the hexagonal insert 55 to disengage from the mounting hexagonal slot 59, thus quickly completing the disassembly of the cutting head 52 and the connector 51. Installation is the reverse of the above operation, which will not be elaborated here.

[0029] The preferred embodiments of this utility model described above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A milling cutter with an integrated milling mechanism, comprising a milling cutter body (5), characterized in that, Also includes: The connector (51) and the cutting head (52) are provided on the milling cutter body (5); Multiple pairs of first cutting inserts (1), second cutting inserts (2), third cutting inserts (3) and fourth cutting inserts (4) are welded onto the cutting head (52) in a 180° symmetrical configuration. A connecting mechanism is installed at the connecting end of the connector (51) and the cutting head (52) to enable quick assembly and disassembly between the connector (51) and the cutting head (52); The first cutting blade (1) has a bottom cutting edge and is used for cutting and reaming holes. The second cutting blade (2) has a pair of chamfers for reaming holes. The outer side of the third cutting blade (3) is round. The outer edge of the fourth cutting blade (4) is rounded and has a cutting edge. The connecting mechanism includes a mounting head (54) fixedly connected to the end of the cutting head (52), a connecting sleeve (53) fixedly connected to one end of the connecting head (51) near the cutting head (52), a mounting hexagonal groove (59) is provided on the connecting sleeve (53), and a hexagonal insert (55) tightly inserted into the mounting hexagonal groove (59) is fixedly connected to the mounting head (54). The connecting mechanism also includes a mounting groove (56) on the connecting sleeve (53), and a mounting screw (57) is spirally connected inside the mounting groove (56). A connecting slot (58) is provided on the hexagonal insert (55) for inserting the end of the mounting screw (57).

2. The integrated milling cutter according to claim 1, characterized in that, The mounting screw (57) is inserted into the connecting slot (58) at one end with a tightly inserted insert.

3. The integrated milling cutter according to claim 1, characterized in that, A ball plug is provided on the insert at the end of the mounting screw (57).

4. The integrated milling cutter according to claim 1, characterized in that, The thickness of the hexagonal insert (55) is the same as the depth of the hexagonal slot (59).

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