Self-rotating double-sided milling cutter

Abstract

The utility model discloses a double-sided milling cutter capable of rotating automatically, the double-sided milling cutter comprises a cutter body and a plurality of wheel-shaped blades, the cutter body comprises a milling surface for milling, the plurality of blades are uniformly arranged on the milling surface around the axis of the milling surface, and the movement direction of the blades intersects with the axis. By arranging the self-rotating blade, all the cutting edges on the circumference of the blade uniformly participate in cutting, the installation angle of the blade does not need to be replaced by manual shutdown, and the extrusion force between the blade and a workpiece can be reduced, so that the cutting feeding speed is greatly improved, and all the cutting edges on the circumference of the blade are ensured to uniformly participate in cutting; meanwhile, through continuous rotation of the blade, the chip removal performance and the heat dissipation performance in the cutting process are improved, the service life of the cutter is effectively prolonged, and defects of the machined surface are restrained.

Description

Technical Field

[0001] This utility model relates to the field of milling cutter technology, and in particular to a self-rotating double-sided milling cutter. Background Technology

[0002] In the field of machining, milling cutters are essential tools for metal processing on milling machines. During operation, the milling cutter rotates (performs the main motion), while the workpiece moves (performs the feed motion). The workpiece can also be fixed, but the rotating cutter must still move. With the development of CNC machining technology, the types and structures of milling cutters are constantly evolving and innovating. Traditional milling cutters have some limitations in the machining process: Although there are various milling cutters on the market with replaceable inserts or adjustable insert positions and angles, these changes are only made when the cutter is not in operation. That is, the insert position is fixed during operation, and adjustments and replacements are only made after the cutting edge wears down. This is not only inconvenient but also affects production efficiency. During machining, the stress concentration and high cutting force at the cutting edge of the milling cutter can easily lead to tooth breakage, affecting machining efficiency and tool life. When machining workpieces with two opposing surfaces, traditional milling machines require two machining operations, necessitating disassembly and re-fixing of the workpiece, which wastes a significant amount of time and reduces production efficiency. Utility Model Content

[0003] The main objective of this invention is to solve the technical problems described in the background section.

[0004] To achieve the above objectives, this utility model provides a self-rotating double-sided milling cutter, comprising: a cutter body and a plurality of wheel-shaped inserts. The cutter body includes a milling surface for milling, and the plurality of inserts are uniformly mounted on the milling surface around the axis of the milling surface. The plane in which the inserts rotate is located on the same plane as the axis.

[0005] Preferably, the milled surface is provided with a plurality of mounting slots for mounting the cutting tool.

[0006] Preferably, the blade is mounted in the mounting slot by bolts.

[0007] Preferably, the blade is made of cemented carbide.

[0008] Preferably, the thickness of the blade is 5mm-15mm.

[0009] Preferably, the center of the cutter body is provided with a mounting shaft for mounting on the spindle of a milling machine, and the outer surface of the mounting shaft is provided with a keyway for connecting to the spindle via a key.

[0010] Preferably, the blade body is made of high-strength alloy steel.

[0011] This invention features a self-rotating blade (wheel-shaped blade) that ensures all cutting edges on the blade's circumference participate evenly in cutting. This eliminates the need for manual machine stops to change the blade's installation angle, reducing the pressure between the blade and the workpiece and significantly increasing the cutting feed rate. It also ensures that all cutting edges on the blade's circumference participate evenly in cutting. Furthermore, the continuous rotation of the blade improves chip removal and heat dissipation during the cutting process, effectively extending tool life and suppressing surface defects. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a three-dimensional structural diagram of a double-sided milling tool according to an embodiment of the present invention;

[0014] Figure 2 This is a three-dimensional structural diagram of a double-sided milling tool according to an embodiment of the present invention;

[0015] Figure 3 This is a schematic diagram of the front structure of a double-sided milling tool in one embodiment of the present invention;

[0016] Figure 4 This is a schematic diagram of the bottom structure of a double-sided milling tool in one embodiment of the present invention;

[0017] Figure 5 This is a side view of the double-sided milling cutter in one embodiment of the present invention.

[0018] Explanation of key component symbols:

[0019] 1. Blade body; 2. Blade. Detailed Implementation

[0020] To better understand the above technical solutions, exemplary embodiments of this disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art.

[0021] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0022] It should be understood that 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" indicate the orientation or positional relationship based on the coordinate system shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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 utility model according to the specific circumstances.

[0024] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] This utility model provides a self-rotating double-sided milling tool, as shown in the reference. Figure 1-5 In one embodiment, the self-rotating double-sided milling cutter includes: a cutter body 1 and a plurality of wheel-shaped inserts 2. The cutter body 1 includes a milling surface for milling. The plurality of inserts 2 are uniformly mounted on the milling surface about the axis of the milling surface. The plane in which the inserts 2 rotate is located in the same plane as the axis.

[0026] In this embodiment, the blade body 1 can be designed as a near-cylindrical shape (see reference). Figure 1-2The center of the blade is the axis of the milling surface. During double-sided milling, the wheel-shaped inserts 2 are evenly distributed on the milling surface. While rotating with the cutter body 1, the inserts 2 also rotate around their central axis. The rotation of the cutter body 1 is driven by the power source of the external milling equipment. The inserts 2 can move circumferentially, and the plane in which they rotate is on the same plane as the axis of the milling surface. It should be noted that the inserts 2 have a certain thickness, and both sides of the inserts 2 can participate in milling during operation.

[0027] In this embodiment, the self-rotation of the insert 2 enables the cutting edge to wear more evenly during the cutting process, extending the service life of the insert 2. Simultaneously, the combination of the self-rotation of the insert 2 and the overall rotation with the tool body 1 improves milling efficiency and machining accuracy. This invention, by setting a self-rotating insert (wheel-shaped insert), ensures that all cutting edges on the insert circumference participate in cutting evenly, eliminating the need for manual machine stops to change the insert's installation angle. This reduces the pressure between the insert and the workpiece, significantly increasing the cutting feed rate and ensuring that all cutting edges on the insert circumference participate in cutting evenly. Furthermore, the continuous rotation of the insert itself improves chip removal and heat dissipation during the cutting process, effectively extending tool life and suppressing surface defects. Both ends (sides) of the insert 2 can participate in cutting, and the cutting edges on both ends can be designed to be concave and arc-shaped, allowing each insert to play a greater role, further improving machining efficiency and extending insert life. It also allows for double-sided machining in a single setup, reducing workpiece disassembly and fixing time and improving production efficiency.

[0028] Preferred, refer to Figure 1-5 The milling surface is provided with multiple mounting slots, which are used to mount the cutting tool 2.

[0029] In this process, multiple mounting grooves are precisely machined on the milling surface of the cutter body 1 according to the size and installation position requirements of the insert 2. The shape of the mounting groove matches the contour of the wheel-shaped insert 2, for example, by using a dovetail groove or a T-slot structure, to ensure that the insert 2 can be stably fixed after installation.

[0030] In this embodiment, the mounting slot facilitates the installation and removal of the insert 2, improving the tool maintenance efficiency; the precisely matched mounting slot ensures the stability of the insert 2 during operation, thereby improving the milling quality.

[0031] Preferred, refer to Figure 1-5 The blade 2 is mounted in the mounting slot by bolts.

[0032] Specifically, threaded holes are machined at the bottom of the wheel-shaped blade 2 and at the corresponding positions of the mounting groove on the blade body 1. Bolts are used to fix the blade 2 in the mounting groove. During installation, the blade 2 is first placed into the mounting groove, aligned with the threaded holes, and then the bolts are screwed in. The blade 2 is then firmly fixed to the blade body 1 by tightening the bolts.

[0033] In this embodiment, the bolt installation method is simple and reliable, making it easy for operators to replace and install the cutting tool 2; it can effectively ensure the positional accuracy of the cutting tool 2 during the milling process and improve the reliability of the tool.

[0034] Preferred, refer to Figure 1-5 The blade 2 is made of cemented carbide.

[0035] Specifically, tungsten-cobalt cemented carbide or tungsten-titanium-cobalt cemented carbide is selected as the material for the wheel-shaped insert 2. In this embodiment, the cemented carbide has high hardness, high wear resistance, and good heat resistance, which can significantly improve the cutting performance and service life of the insert 2, reduce the tool replacement frequency, and improve machining efficiency.

[0036] Preferred, refer to Figure 1-5 The thickness of the blade 2 is 5mm-15mm.

[0037] Specifically, during the design and manufacturing process of insert 2, its thickness is strictly controlled within the range of 5mm-15mm. Furthermore, the appropriate insert 2 thickness can be selected based on different milling process requirements and the materials being machined. For example, for rough milling of softer materials, a thicker insert 2 (e.g., 10mm-15mm) can be selected to improve its strength and durability; for finish milling of harder materials, a thinner insert 2 (e.g., 5mm-8mm) can be selected to improve machining accuracy.

[0038] In this embodiment, the appropriate thickness of the insert 2 can ensure the strength and rigidity of the insert 2 during the milling process, and also meet the requirements of different machining processes for the tool, thereby improving the tool's versatility and machining quality.

[0039] Preferred, refer to Figure 1-5 The tool body 1 has a mounting shaft at its center for mounting on the spindle of a milling machine. The outer surface of the mounting shaft has a keyway and is connected to the spindle by a key.

[0040] Specifically, a mounting shaft is machined at the center of the cutter body 1, and a keyway is machined on the outer surface of the mounting shaft according to the standard keyway dimensions. When mounted on the spindle of the milling machine, the key is embedded in the keyway and the keyway of the spindle, and torque is transmitted through the connection of the key, so that the cutter body 1 can rotate with the spindle.

[0041] In this embodiment, the keyed connection method can reliably transmit torque, ensuring the stability of the tool body 1 during high-speed rotation and improving the accuracy and efficiency of milling.

[0042] Preferred, refer to Figure 1-5 The blade body 1 is made of high-strength alloy steel.

[0043] Specifically, high-strength alloy steels, such as 40Cr and 35CrMo, are selected as the material for the blade body 1. During the manufacturing process of the blade body 1, forging, machining, and heat treatment are performed to achieve the required shape and performance. The heat treatment process can employ quenching and tempering to improve the strength and toughness of the blade body 1.

[0044] In this embodiment, high-strength alloy steel has high strength and toughness, and can withstand the cutting force and impact force during the milling process, ensuring the service life and working reliability of the tool body 1, and improving the overall performance of the tool.

[0045] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A self-rotatable double-sided milling tool, characterized in that, The double-sided milling tool comprises a tool body and a plurality of wheel-shaped blades, the tool body comprises a milling surface for milling, and the plurality of blades are evenly mounted on the milling surface around the axis of the milling surface, and the plane in which the blades rotate is in the same plane as the axis.

2. A self-rotatable double-sided milling tool according to claim 1, characterized in that A plurality of mounting grooves are arranged on the milling surface, and the mounting grooves are used for mounting the blades.

3. A self-rotatable double-sided milling tool according to claim 2, characterized in that The blades are mounted in the mounting grooves through bolts.

4. The self-rotatable double-sided milling cutter according to claim 1, wherein The material of the blades is cemented carbide.

5. The self-rotatable double-sided milling cutter according to claim 1, wherein The thickness of the blades is 5mm-15mm.

6. The self-rotatable double-sided milling cutter according to claim 1, wherein The center of the tool body is provided with a mounting shaft for mounting on a main shaft of a milling device, and the outer surface of the mounting shaft is provided with a key groove connected with the main shaft through a key.

7. The self-rotatable double-sided milling cutter according to claim 1, wherein The tool body is made of high-strength alloy steel.

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