Anti-tipping high-speed milling cutter with micro-sawtooth cutting edge

Abstract

The utility model belongs to the technical field of milling cutters, particularly relates to an anti-tipping high-speed milling cutter with a micro-sawtooth cutting edge, and provides the following scheme aiming at the problem that the temperature is too high when the milling cutter works due to the fact that the milling cutter is inconvenient to radiate when the existing milling cutter is used, the anti-tipping high-speed milling cutter comprises a milling cutter handle, and one end of the milling cutter handle is connected with a heat conduction pipe in an inserted manner; a heat dissipation mechanism used for dissipating heat of the milling cutter is arranged in the milling cutter handle, and a milling mechanism used for milling a workpiece is arranged on the outer surface of the heat conduction pipe; the heat dissipation mechanism comprises a liquid storage cavity, and the liquid storage cavity is formed in the milling cutter handle. The heat conduction pipe can absorb heat generated during cutting of the milling cutter body, the heat is transmitted into the heat exchange liquid in the liquid storage cavity through the heat conduction pipe, the heat absorption pipe absorbs the heat of the heat exchange liquid and then transmits the heat to the heat conduction ring, and the milling cutter handle is driven to rotate, so that the cooling fins and air collide with wind, the heat exchange liquid is cooled, and the service life of the milling cutter is prolonged. And the milling cutter body is indirectly cooled.

Description

Technical Field

[0001] This utility model relates to a high-speed milling cutter, specifically a high-speed milling cutter with a chip-resistant micro-serrated cutting edge, belonging to the field of milling cutter technology. Background Technology

[0002] High-speed end mills with micro-serrated cutting edges are cutting tools with a specially designed cutting edge. The micro-serrated cutting edge divides the continuous cutting process into multiple tiny cutting segments by forming tiny serrated structures on the cutting edge. This design helps to disperse cutting forces, reduce stress concentration during cutting, and thus reduce tool wear and the risk of chipping. High-speed end mills with micro-serrated cutting edges are widely used in metal cutting processes in aerospace, automotive manufacturing, mold making, and electronic equipment industries. Especially when machining high-strength, high-hardness metals, high-speed end mills with micro-serrated cutting edges demonstrate excellent cutting performance, meeting the requirements of high-precision and high-efficiency machining.

[0003] In existing technologies, such as the serrated eight-flute unequal-division high-precision milling cutter disclosed in CN212042843U, there is a straight-bar shank. A coaxial mandrel is fixedly connected to the front end of the shank, and a cutter barrel is sleeved on the mandrel. A positioning component is provided between the mandrel and the cutter barrel to prevent radial rotation of the cutter barrel. Eight cutting edges are spirally arranged on the outer wall of the cutter barrel, and chip removal grooves are formed between adjacent cutting edges. By transforming the cutter body into a cutter barrel structure, the cutter barrel and the shank become a detachable connection structure. When the cutting edges on the cutter barrel are severely worn, the old cutter barrel can be directly removed and replaced with a new one, saving a lot of materials. Moreover, the same shank can be configured with multiple types of cutter barrels, expanding the range of applications.

[0004] Although the above technical solution transforms the cutter body into a cutter barrel structure, making the cutter barrel and cutter holder a detachable connection structure, allowing for easy replacement of the old cutter barrel with a new one when the cutting edge on the cutter barrel is severely worn, it is inconvenient to dissipate heat from the milling cutter during use, resulting in excessively high operating temperatures and affecting its performance. Therefore, a high-speed milling cutter with anti-chipping micro-serrated cutting edge is provided to overcome the above defects. Utility Model Content

[0005] This invention provides a high-speed milling cutter with anti-chipping micro-serrated cutting edge to solve the problem that the milling cutter is inconvenient to dissipate heat during use, resulting in excessively high temperature during operation.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a high-speed milling cutter with anti-chipping micro-serrated cutting edge, including a milling cutter shank, one end of which is connected to a heat-conducting pipe, the inside of which is provided with a heat dissipation mechanism for heat dissipation of the milling cutter, and the outer surface of which is provided with a milling mechanism for milling the workpiece.

[0007] The heat dissipation mechanism includes a liquid storage chamber located inside the milling cutter shank. Several heat absorption tubes are fixed to the inner wall of the liquid storage chamber. A heat-conducting ring, which is fixedly connected to the milling cutter shank, is fixed to one end of each heat absorption tube. Three heat dissipation fins are fixed to the outer wall of the heat-conducting ring.

[0008] As a further improvement of this utility model: the outer surface of the milling cutter handle is fixed with anti-slip texture, and the outer wall of the milling cutter handle is threaded with a fixing bolt that abuts against the heat conduction pipe.

[0009] As a further embodiment of this utility model: the milling mechanism includes a milling cutter body, which is mounted on the outer surface of the heat-conducting pipe.

[0010] As a further improvement of this utility model, the milling cutter body has a limiting groove inside that matches the heat-conducting pipe.

[0011] As a further improvement of this utility model: the outer wall of the milling cutter body is provided with a plurality of milling cutter cutting edges, and the outer surface of the milling cutter body is provided with chip removal grooves.

[0012] As a further improvement of this utility model: a fixing screw is installed inside the chip removal groove, and the end of the fixing screw is inserted into a fixing hole opened on the heat conduction pipe.

[0013] As a further improvement of this utility model: a sealing groove is provided on one side of the milling cutter shank, and a sealing ring that fits tightly against the milling cutter body is installed inside the sealing groove.

[0014] The beneficial effects of this invention are as follows: the heat-conducting pipe can absorb the heat generated during the cutting of the milling cutter body. The heat is transferred to the heat exchange liquid in the storage chamber by the heat-conducting pipe, while the heat-absorbing pipe absorbs the heat of the heat exchange liquid and then transfers the heat to the heat-conducting coil. The milling cutter shank is driven to rotate, causing the heat sink to collide with the air, thereby cooling the heat exchange liquid and indirectly dissipating heat from the milling cutter body. The heat-conducting pipe can be disassembled by unscrewing the fixing bolt on the milling cutter shank, which is convenient for maintenance. The fixing screw on the milling cutter body can be unscrewed to separate the fixing screw from the fixing hole, thereby releasing the fixing of the milling cutter body. With the cooperation of the limiting groove, the milling cutter body can be disassembled separately, which is convenient for individual replacement of the milling cutter. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the milling cutter holder of this utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of the milling cutter holder of this utility model;

[0018] Figure 4 This utility model Figure 1 Enlarged view of point A in the middle.

[0019] In the diagram: 1. Milling cutter holder; 2. Heat pipe; 3. Liquid storage chamber; 31. Heat absorption pipe; 32. Heat conduction ring; 33. Heat sink; 4. Anti-slip texture; 5. Fixing bolt; 6. Milling cutter body; 61. Milling cutter cutting edge; 62. Chip removal groove; 63. Fixing screw; 64. Fixing hole; 65. Limiting groove; 7. Sealing groove; 8. Sealing ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0021] like Figures 1 to 4 As shown, a high-speed milling cutter with anti-chipping micro-serrated cutting edge includes a milling cutter holder 1, one end of which is connected to a heat-conducting pipe 2. The inside of the milling cutter holder 1 is provided with a heat dissipation mechanism for cooling the milling cutter, and the outer surface of the heat-conducting pipe 2 is provided with a milling mechanism for milling the workpiece.

[0022] The heat dissipation mechanism includes a liquid storage chamber 3, which is located inside the end mill shank 1. Several heat absorption tubes 31 are fixed to the inner wall of the liquid storage chamber 3. One end of each heat absorption tube 31 is fixed to a heat-conducting ring 32, which is fixedly connected to the end mill shank 1. Three heat dissipation fins 33 are fixed to the outer wall of the heat-conducting ring 32. Anti-slip textures 4 are fixed to the outer surface of the end mill shank 1. A fixing bolt 5, which abuts against the heat-conducting tube 2, is threaded onto the outer wall of the end mill shank 1. The heat-conducting tube 2 can absorb the heat generated when the end mill body 6 is cutting. The heat is transferred by the heat-conducting tube 2 to the heat exchange liquid in the liquid storage chamber 3. The heat absorption tubes 31 absorb the heat from the heat exchange liquid and then transfer the heat to the heat-conducting ring 32. The end mill shank 1 is rotated, causing the heat dissipation fins 33 to convect with the air, thereby cooling the heat exchange liquid and indirectly dissipating heat from the end mill body 6. The heat-conducting tube 2 can be disassembled by unscrewing the fixing bolt 5 on the end mill shank 1 for easy maintenance. Example 2

[0023] In addition to all the technical features in Embodiment 1, this embodiment also includes: a milling mechanism comprising a milling cutter body 6, the milling cutter body 6 being mounted on the outer surface of the heat-conducting pipe 2, a limiting groove 65 matching the heat-conducting pipe 2 being provided inside the milling cutter body 6, a plurality of milling cutter cutting edges 61 being provided on the outer wall of the milling cutter body 6, a chip removal groove 62 being provided on the outer surface of the milling cutter body 6, a fixing screw 63 being installed inside the chip removal groove 62, the end of the fixing screw 63 being inserted into a fixing hole 64 provided on the heat-conducting pipe 2, a sealing groove 7 being provided on one side of the milling cutter holder 1, a sealing ring 8 being installed inside the sealing groove 7 that fits tightly against the milling cutter body 6, and the machine tool driving the milling cutter holder 1 to rotate, thereby driving the milling cutter body 6 to rotate, and the milling cutter cutting edges 61 being matched with the milling cutter body 61. When closed, the workpiece is milled. The chip removal groove 62 facilitates the discharge of waste generated during cutting. The milling cutter body 6 is made of cemented carbide, which is made of metal carbides such as tungsten carbide, titanium carbide and metal binder through powder metallurgy. It has extremely high hardness and wear resistance, as well as good heat resistance, thus effectively reducing the occurrence of chipping at the milling cutter edge 61. The fixing screw 63 on the milling cutter body 6 is unscrewed to separate the fixing screw 63 from the fixing hole 64, thereby releasing the fixing of the milling cutter body 6. With the cooperation of the limiting groove 65, the milling cutter body 6 can be disassembled separately, which facilitates the individual replacement of the milling cutter. In addition, with the cooperation of the sealing groove 7 and the sealing ring 8, it can play a sealing role and reduce the leakage of internal heat exchange fluid.

[0024] Working Principle: Before using this high-speed milling cutter with anti-chipping micro-serrated cutting edge, connect the cutter to the machine tool. Connect and fix the cutter holder 1 to the output shaft of the machine tool. The anti-slip grooves 4 on the cutter holder 1 provide anti-slip properties, thus ensuring the stability of the cutter. During use, the machine tool drives the cutter holder 1 to rotate, which in turn drives the cutter body 6 to rotate. With the cooperation of the cutting edge 61, the workpiece is milled. The chip groove 62 facilitates the discharge of waste generated during cutting. The cutter body 6 is made of cemented carbide, which is made of metal carbides such as tungsten carbide, titanium carbide and metal binder through powder metallurgy. It has extremely high hardness and wear resistance, as well as good heat resistance, thus effectively reducing the chipping of the cutting edge 61 and improving its applicability. The heat pipe 2 is also included. The heat exchanger can absorb the heat generated during cutting by the milling cutter body 6. The heat is transferred to the heat exchange fluid in the storage chamber 3 by the heat pipe 2. The heat absorption pipe 31 absorbs the heat from the heat exchange fluid and then transfers the heat to the heat conduction ring 32. The milling cutter shank 1 is driven to rotate, causing the heat sink 33 to convect with the air, thereby cooling the heat exchange fluid and indirectly dissipating heat from the milling cutter body 6. By unscrewing the fixing bolt 5 on the milling cutter shank 1, the heat conduction pipe 2 can be disassembled for easy maintenance. And by unscrewing the fixing screw 63 on the milling cutter body 6, the fixing screw 63 and the fixing hole 64 are separated, releasing the fixing of the milling cutter body 6. With the cooperation of the limiting groove 65, the milling cutter body 6 can be disassembled separately, making it easy to replace the milling cutter individually. Furthermore, with the cooperation of the sealing groove 7 and the sealing ring 8, it can play a sealing role, reducing the possibility of leakage of the internal heat exchange fluid.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-speed end mill with a chip-resistant micro-serrated cutting edge, comprising an end mill shank (1), characterized in that: A heat-conducting pipe (2) is inserted into one end of the milling cutter holder (1). The inside of the milling cutter holder (1) is provided with a heat dissipation mechanism for heat dissipation of the milling cutter. The outer surface of the heat-conducting pipe (2) is provided with a milling mechanism for milling the workpiece. The heat dissipation mechanism includes a liquid storage chamber (3), which is located inside the milling cutter handle (1). The inner wall of the liquid storage chamber (3) is fixed with several heat absorption tubes (31). One end of each heat absorption tube (31) is fixed with a heat-conducting ring (32) that is fixedly connected to the milling cutter handle (1). The outer wall of the heat-conducting ring (32) is fixed with three heat sinks (33).

2. The high-speed end mill with anti-chipping micro-serrated cutting edge according to claim 1, characterized in that: The outer surface of the milling cutter holder (1) is fixed with anti-slip texture (4), and the outer wall of the milling cutter holder (1) is threaded with a fixing bolt (5) that abuts against the heat conduction pipe (2).

3. The high-speed end mill with anti-chipping micro-serrated cutting edge according to claim 1, characterized in that: The milling mechanism includes a milling cutter body (6), which is mounted on the outer surface of the heat pipe (2).

4. A high-speed end mill with anti-chipping micro-serrated cutting edge according to claim 3, characterized in that: The milling cutter body (6) has a limiting groove (65) inside that matches the heat pipe (2).

5. A high-speed end mill with a chip-resistant micro-serrated cutting edge according to claim 4, characterized in that: The outer wall of the milling cutter body (6) is provided with a plurality of milling cutter cutting edges (61), and the outer surface of the milling cutter body (6) is provided with chip removal grooves (62).

6. A high-speed end mill with a chip-resistant micro-serrated cutting edge according to claim 5, characterized in that: The chip removal groove (62) is equipped with a fixing screw (63), and the end of the fixing screw (63) is inserted into a fixing hole (64) opened on the heat conduction pipe (2).

7. A high-speed end mill with anti-chipping micro-serrated cutting edge according to claim 6, characterized in that: A sealing groove (7) is provided on one side of the milling cutter holder (1), and a sealing ring (8) that fits tightly against the milling cutter body (6) is installed inside the sealing groove (7).

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