Milling cutter with replaceable milling cutter head for aviation aluminum alloy processing

Abstract

The utility model discloses a replaceable milling cutter head type milling cutter for aviation aluminum alloy processing, which comprises a milling cutter fixing handle, one end of the milling cutter fixing handle is connected with a milling cutter head body, one side of the milling cutter head body is provided with a heat dissipation mechanism for cooling the milling cutter, and the outer surface of the milling cutter head body is provided with a milling mechanism for milling a workpiece; the heat dissipation mechanism comprises a connecting piece. Heat of the heat conduction pipe is absorbed by the heat exchange liquid and transmitted to the heat absorption plate, and when the milling cutter fixing handle is driven by a machine tool to rotate, the cooling fins are synchronously driven to rotate, so that the cooling fins absorb the heat of the heat absorption plate and then transmit the heat to the air, and the auxiliary cooling effect is further achieved.

Description

Technical Field

[0001] This utility model relates to a milling cutter for machining aerospace aluminum alloys, specifically a replaceable milling cutter head type milling cutter for machining aerospace aluminum alloys, belonging to the field of milling cutter technology. Background Technology

[0002] End mills used in aerospace aluminum alloy machining are typically made of high-strength, high-hardness materials such as ultrafine cemented carbide and coated cemented carbide. These materials possess high hardness and toughness, enabling them to maintain tool stability and durability during high-speed cutting. End mills for aerospace aluminum alloy machining come in various types, including end mills, face mills, and slot mills. These tools have different cutter shapes and structural characteristics depending on the machining area and cutting method. For example, end mills are mainly used for cavity machining and side milling, while face mills are mainly used for plane machining.

[0003] In the prior art, such as the novel end mill for machining aerospace aluminum alloys disclosed in Publication No. CN220805616U, there is an output rod, two sliding cylinders, and a connecting block. The bottom end of the output rod is fixedly connected to the upper surface of the connecting block. The two sliding cylinders are respectively fixedly connected to the front and back sides of the connecting block on their adjacent sides. A connecting groove is formed on the bottom surface of the connecting block. Through the cooperation of the output rod, connecting block, connecting groove, connecting post, and snap-fit, the end mill's head is easily installed and used. Furthermore, the connecting post can be pulled out from the output rod and connecting block using the sliding cylinders, disassembly rod, and pressing plate, facilitating the replacement of worn end mill heads after prolonged use. This provides a convenient way to use the novel end mill for machining aerospace aluminum alloys.

[0004] The above-mentioned technical solution facilitates the installation and use of the milling cutter head by using an output rod, connecting block, connecting groove, connecting post and snap fastener. However, since the milling cutter generates a lot of heat when machining the workpiece, it is not convenient to cool the milling cutter. This can lead to the milling cutter temperature being too high, which can easily damage the workpiece and reduce the machining quality. In view of this, a replaceable milling cutter head type milling cutter for aerospace aluminum alloy machining is provided to overcome the above-mentioned defects. Utility Model Content

[0005] This invention addresses the problem that milling cutters generate a large amount of heat during workpiece machining, making it inconvenient to cool them down, which can lead to excessively high milling cutter temperatures that damage the workpiece and reduce machining quality. It provides a replaceable milling cutter head type for aerospace aluminum alloy machining.

[0006] The present invention achieves the above objectives through the following technical solution: a replaceable milling cutter head type milling cutter for aerospace aluminum alloy processing, including a milling cutter fixing shank, one end of the milling cutter fixing shank being connected to a milling cutter head body, a heat dissipation mechanism for cooling the milling cutter being provided on one side of the milling cutter head body, and a milling mechanism for milling the workpiece being provided on the outer surface of the milling cutter head body.

[0007] The heat dissipation mechanism includes a connector, which is fixed to one side of the milling cutter head body. A heat-conducting pipe is fixed inside the connector, and the end of the heat-conducting pipe is connected to a water storage cavity opened inside the milling cutter retaining shank.

[0008] Preferably, the outer surface of the water storage cavity is provided with a heat-absorbing plate that is fixedly connected to the milling cutter fixing handle, and heat dissipation fins are fixed on the outer surface of the heat-absorbing plate.

[0009] Preferably, the outer surface of the connector is provided with a fixing hole, and a fixing bolt that is threadedly connected to the fixing shank of the milling cutter is inserted into the fixing hole.

[0010] Preferably, the milling mechanism includes three chip removal grooves, all of which are formed on the outer surface of the milling cutter head.

[0011] Preferably, milling inserts are installed on the inner sides of the three chip removal grooves, and fixing screws that are threadedly connected to the milling cutter head body are installed inside the milling inserts.

[0012] Preferably, the inside of the milling cutter retaining shank is provided with a connecting groove for insertion and connection with the connector.

[0013] Preferably, the outer wall of the milling cutter retaining shank is provided with anti-slip stripes, and a connector is fixed to the other end of the milling cutter retaining shank.

[0014] The beneficial effects of this utility model are:

[0015] 1) The heat through the heat pipe is absorbed by the heat exchange fluid and transferred to the heat absorber plate. When the milling cutter shank is driven to rotate by the machine tool, it will drive the heat sink to rotate synchronously, so that the heat sink absorbs the heat from the heat absorber plate and transfers the heat to the air, thereby achieving the function of auxiliary cooling.

[0016] 2) By unscrewing the fixing bolts on the milling cutter retaining shank, the fixing bolts and the fixing holes on the connector are separated, the connector is released from its fixation, and with the cooperation of the connecting groove, the milling cutter head body can be disassembled for easy replacement. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a cross-sectional structural diagram of the milling cutter fixing shank of this utility model;

[0019] Figure 3 This utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 4 This is a three-dimensional structural diagram of the milling cutter fixing shank of this utility model.

[0021] In the diagram: 1. Milling cutter retainer; 2. Milling cutter head body; 3. Connector; 31. Heat pipe; 32. Water storage chamber; 33. Heat absorption plate; 34. Heat sink; 4. Fixing hole; 5. Fixing bolt; 6. Chip removal groove; 61. Milling insert; 62. Fixing screw; 7. Connecting groove; 8. Anti-slip stripe; 9. Connector. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1, as Figures 1 to 4 As shown, this embodiment provides a replaceable milling cutter head type milling cutter for aerospace aluminum alloy processing, including a milling cutter fixing shank 1, one end of the milling cutter fixing shank 1 is connected to a milling cutter head body 2, one side of the milling cutter head body 2 is provided with a heat dissipation mechanism for cooling the milling cutter, and the outer surface of the milling cutter head body 2 is provided with a milling mechanism for milling the workpiece.

[0024] The heat dissipation mechanism includes a connector 3, which is fixed to one side of the milling cutter head body 2. A heat-conducting pipe 31 is fixed inside the connector 3. The end of the heat-conducting pipe 31 is connected to a water storage cavity 32 opened inside the milling cutter fixing shank 1. A heat-absorbing plate 33 is fixedly connected to the milling cutter fixing shank 1 on the outer surface of the water storage cavity 32. A heat sink 34 is fixed on the outer surface of the heat-absorbing plate 33. A fixing hole 4 is opened on the outer surface of the connector 3. A fixing bolt 5 threadedly connected to the milling cutter fixing shank 1 is inserted into the fixing hole 4. The heat generated by the milling cutter head body 2 during workpiece processing is absorbed by the heat-conducting pipe 31. Since the water storage cavity 32 stores heat exchange fluid, the heat of the heat-conducting pipe 31 is absorbed by the heat exchange fluid and transferred to the heat-absorbing plate 33. When the milling cutter fixing shank 1 is driven to rotate by the machine tool, it will drive the heat sink 34 to rotate synchronously, so that the heat sink 34 absorbs the heat of the heat-absorbing plate 33 and transfers the heat to the air, thereby achieving the function of auxiliary cooling.

[0025] Example 2, in addition to all the technical features of Example 1, includes the following: the milling mechanism includes chip removal grooves 6, three of which are provided, all three being formed on the outer surface of the milling cutter head body 2. Milling inserts 61 are installed on the inner sides of each of the three chip removal grooves 6. A fixing screw 62, threadedly connected to the milling cutter head body 2, is installed inside the milling insert 61. A connecting groove 7, which is inserted into the connecting member 3, is provided inside the milling cutter fixing shank 1. Anti-slip stripes 8 are provided on the outer wall of the milling cutter fixing shank 1. A connecting head 9 is fixed to the other end of the milling cutter fixing shank 1. The anti-slip stripes 8 allow for... It provides anti-slip properties, enabling the machine tool to drive the milling cutter retaining shank 1 to rotate, which in turn drives the milling cutter head body 2 to rotate, allowing the milling insert 61 to process and cut the workpiece. The chip removal groove 6 allows the chips generated during processing to be discharged to the outside. By unscrewing the fixing screw 62, the milling insert 61 can be disassembled and replaced. By unscrewing the fixing bolt 5 on the milling cutter retaining shank 1, the fixing bolt 5 and the fixing hole 4 on the connector 3 are separated, releasing the fixing of the connector 3. With the cooperation of the connecting groove 7, the milling cutter head body 2 can be disassembled for easy replacement.

[0026] Before using this replaceable end mill, the end mill and the drive unit must be assembled. The end mill holder 1 is connected and fixed to the machine tool's output shaft via the connector 9 on the end mill holder 1. Anti-slip stripes 8 provide a non-slip function, allowing the machine tool to drive the end mill holder 1 to rotate, which in turn rotates the end mill head 2. This allows the milling insert 61 to cut the workpiece, and the chip removal groove 6 allows the generated chips to be discharged to the outside. The milling insert 61 can be disassembled and replaced by unscrewing the fixing screw 62 for easy use. When the end mill head 2 is machining the workpiece... The generated heat is absorbed by the heat pipe 31. Since the water storage chamber 32 contains heat exchange fluid, the heat from the heat pipe 31 is absorbed by the heat exchange fluid and transferred to the heat absorption plate 33. When the milling cutter fixing shank 1 is driven to rotate by the machine tool, it will drive the heat sink 34 to rotate synchronously. The heat sink 34 absorbs the heat from the heat absorption plate 33 and then transfers the heat to the air, thereby achieving the function of auxiliary cooling. By unscrewing the fixing bolt 5 on the milling cutter fixing shank 1, the fixing bolt 5 and the fixing hole 4 on the connector 3 are separated, and the fixing of the connector 3 is released. With the cooperation of the connecting groove 7, the milling cutter head body 2 can be disassembled for easy replacement.

[0027] 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 replaceable milling head type milling cutter for aerospace aluminum alloy machining, comprising a milling cutter fixing handle (1), characterized in that: One end of the milling cutter fixed handle (1) is connected with a milling cutter head body (2), one side of the milling cutter head body (2) is provided with a heat dissipation mechanism for cooling the milling cutter, and the outer surface of the milling cutter head body (2) is provided with a milling mechanism for milling the workpiece. The heat dissipation mechanism comprises a connecting piece (3), the connecting piece (3) is fixed on one side of the milling cutter head body (2), the connecting piece (3) is fixed with a heat pipe (31) in the inside, and the heat pipe (31) is connected with a water storage cavity (32) opened in the inside of the milling cutter fixed handle (1).

2. The replaceable milling head type milling cutter according to claim 1, characterized in that: The outer surface of the water storage cavity (32) is provided with a heat absorption plate (33) fixedly connected with the milling cutter fixed handle (1), and the outer surface of the heat absorption plate (33) is fixedly connected with a heat dissipation fin (34).

3. The replaceable milling head type milling cutter according to claim 2, characterized in that: The outer surface of the connecting piece (3) is provided with a fixing hole (4), and the inside of the fixing hole (4) is connected with a fixing bolt (5) screwed with the milling cutter fixed handle (1).

4. The replaceable milling head type milling cutter according to claim 1, characterized in that: The milling mechanism comprises three chip removal grooves (6), and the three chip removal grooves (6) are arranged on the outer surface of the milling cutter head body (2).

5. The replaceable milling head type milling cutter according to claim 4, characterized in that: The inner side of the three chip removal grooves (6) is provided with a milling blade (61), and the inside of the milling blade (61) is provided with a fixing screw (62) screwed with the milling cutter head body (2).

6. The replaceable milling head type milling cutter according to claim 1, characterized in that: The inside of the milling cutter fixed handle (1) is provided with a connecting groove (7) connected with the connecting piece (3).

7. The replaceable milling head type milling cutter according to claim 1 or 6, characterized in that: The outer wall of the milling cutter fixed handle (1) is provided with an anti-skid stripe (8), and the other end of the milling cutter fixed handle (1) is fixedly connected with a connecting head (9).

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