Efficient milling cutter with overheating protection function

Abstract

The utility model belongs to the technical field of milling cutters, particularly relates to a high-efficiency milling cutter with an overheating protection function, and provides the following scheme aiming at the problems that when an existing milling cutter is used for cutting and drilling a workpiece, a large amount of heat is generated and cannot be dissipated, so that the overheating milling cutter is easy to damage the workpiece. Comprising a milling cutter handle, one end of the milling cutter handle is connected with a milling cutter body, a cooling mechanism used for cooling the milling cutter is arranged in the milling cutter handle, and a quick detaching mechanism used for detaching the milling cutter is arranged on one side of the milling cutter body; and the cooling mechanism comprises a flowing cavity, the flowing cavity is formed in the milling cutter handle, and a limiting piece is installed on the left side of the interior of the flowing cavity. The water inlet pipe is connected with the external water delivery pump, so that cooling water can enter the flowing cavity and then is sprayed out through the water spraying holes in the milling cutter body, the milling cutter body is cooled, and the overheating protection effect is achieved.

Description

Technical Field

[0001] This utility model relates to a high-efficiency milling cutter, specifically a high-efficiency milling cutter with overheat protection function, belonging to the field of milling cutter technology. Background Technology

[0002] High-efficiency end mills are a new type of milling tool that offers higher machining efficiency, precision, and wear resistance compared to traditional or ordinary end mills. High-efficiency end mills have a wider cutting edge, allowing them to complete more machining operations per unit time, thus resulting in higher machining efficiency. Under the same machining conditions, high-efficiency end mills can significantly shorten machining time and improve production efficiency. As one of the most important cutting tools, high-efficiency end mills will see increasingly widespread application, especially in high-end manufacturing fields such as aerospace and automotive manufacturing.

[0003] In existing technologies, such as the high-efficiency roughing and finishing milling cutter disclosed in CN219786685U, a tool holder and a cutter body are included. The cutter body is connected to the tool holder, and four helical chip removal grooves are provided on the outer periphery of the cutter body. A peripheral cutting edge is provided between adjacent chip removal grooves, and a bottom cutting edge is provided at the front end of the cutter body, corresponding to the peripheral cutting edge. The cutter body has a first core diameter section and a second core diameter section of different sizes arranged sequentially along its axis towards the tool holder. The helix angle at the front end of the second core diameter section is smaller than the helix angle at the rear end of the second core diameter section, and the rake angle at the first core diameter section is smaller than the rake angle at the second core diameter section. It can quickly achieve good rigidity and chip removal space in roughing, and the unequal rake angle and variable helix angle design can reduce cutting vibration in roughing and finishing, obtain good machining quality, and thus achieve integrated roughing and finishing to improve machining efficiency.

[0004] While the above-mentioned technical solutions can quickly achieve good rigidity and chip removal space for rough machining, the milling cutter generates a lot of heat when cutting and drilling the workpiece. However, it cannot dissipate this heat, which can easily damage the workpiece due to overheating. Therefore, a high-efficiency milling cutter with overheat protection function is provided to overcome the above defects. Utility Model Content

[0005] This invention addresses the problem that when the milling cutter cuts cut and drill holes in a workpiece, they generate a large amount of heat, which cannot be dissipated, leading to overheating and potential damage to the workpiece. The invention provides a high-efficiency milling cutter with overheat protection.

[0006] The present invention achieves the above objectives through the following technical solution: a high-efficiency milling cutter with overheat protection function, including a milling cutter holder, one end of which is connected to a milling cutter body, a cooling mechanism for cooling the milling cutter is provided inside the milling cutter holder, and a quick-release mechanism for disassembling the milling cutter is provided on one side of the milling cutter body.

[0007] The cooling mechanism includes a flow cavity, which is located inside the milling cutter shank. A limiting component is installed on the left side inside the flow cavity, and a limiting ring is rotatably connected inside the limiting component. A water spray hole communicating with the flow cavity is provided on the outer surface of the milling cutter body.

[0008] As a further improvement of this utility model: a water inlet pipe is fixed to the left side of the limiting ring, and a fixed bearing embedded in the inner wall of the milling cutter shank is sleeved on the outer surface of the water inlet pipe.

[0009] As a further improvement of this utility model, a chip removal groove is provided on the outer wall of the milling cutter body.

[0010] As a further improvement of this utility model: a sealing ring is fixed to the side wall of the milling cutter body, and the end of the sealing ring is inserted into a sealing groove opened inside the milling cutter shank.

[0011] As a further improvement of this utility model: the quick-release mechanism includes a connecting rod, which is fixed to one side of the milling cutter body.

[0012] As a further improvement of this utility model: a limiting hole is provided on the outer surface of the connecting rod, and a fixing bolt that is threadedly connected to the milling cutter shank is inserted into the limiting hole.

[0013] As a further embodiment of this utility model: an auxiliary blade is installed at the end of the milling cutter body, and a fixing screw that is threadedly connected to the milling cutter body is installed inside the auxiliary blade.

[0014] The beneficial effects of this utility model are: by connecting the water inlet pipe to an external water pump, cooling water can enter the flow chamber and then be sprayed out through the water spray holes on the milling cutter body, thereby cooling the milling cutter body and achieving the function of overheat protection.

[0015] By unscrewing the fixing bolt, the fixing bolt and the limiting hole on the connecting rod are separated, thereby enabling the disassembly and replacement of the milling cutter body and the milling cutter holder. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the milling cutter body of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the milling cutter holder of this utility model;

[0019] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle.

[0020] In the diagram: 1. Milling cutter holder; 2. Milling cutter body; 3. Flow chamber; 31. Limiting component; 32. Limiting ring; 33. Water inlet pipe; 34. Fixed bearing; 35. Water spray hole; 4. Sealing groove; 5. Sealing ring; 6. Connecting rod; 61. Limiting hole; 62. Fixing bolt; 7. Chip removal groove; 8. Auxiliary insert; 9. Fixing screw. Detailed Implementation

[0021] 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

[0022] like Figures 1 to 4 As shown, a high-efficiency milling cutter with overheat protection function includes a milling cutter holder 1, one end of which is connected to a milling cutter body 2. The milling cutter holder 1 is provided with a cooling mechanism for cooling the milling cutter, and a quick-release mechanism for disassembling the milling cutter is provided on one side of the milling cutter body 2.

[0023] The cooling mechanism includes a flow chamber 3, which is located inside the milling cutter shank 1. A limiting member 31 is installed on the left side inside the flow chamber 3, and a limiting ring 32 is rotatably connected inside the limiting member 31. A water spray hole 35 communicating with the flow chamber 3 is opened on the outer surface of the milling cutter body 2. A water inlet pipe 33 is fixed on the left side of the limiting ring 32. A fixed bearing 34 embedded in the inner wall of the milling cutter shank 1 is sleeved on the outer surface of the water inlet pipe 33. A chip removal groove 7 is opened on the outer wall of the milling cutter body 2. The water inlet pipe 33 is connected to an external water pump. The water pump's input end is connected to the water source, allowing cooling water to enter the flow chamber 3 and then spray out through the spray holes 35 on the milling cutter body 2, thereby cooling the milling cutter body 2 and achieving overheat protection. The sprayed cooling water can be discharged through the chip removal groove 7. The water inlet pipe 33 is equipped with a limit ring 32, which, under the action of the limit member 31, can prevent the water inlet pipe 33 from falling off. The fixed bearing 34 can prevent the water inlet pipe 33 from rotating when the milling cutter shank 1 rotates, ensuring the delivery of water. Example 2

[0024] In addition to all the technical features in Embodiment 1, this embodiment also includes: a sealing ring 5 fixed to the side wall of the milling cutter body 2, the end of the sealing ring 5 being inserted into a sealing groove 4 inside the milling cutter shank 1; a quick-release mechanism including a connecting rod 6, the connecting rod 6 being fixed to one side of the milling cutter body 2; a limiting hole 61 being formed on the outer surface of the connecting rod 6; a fixing bolt 62 threadedly connected to the milling cutter shank 1 being inserted into the limiting hole 61; an auxiliary blade 8 being installed at the end of the milling cutter body 2; a fixing screw 9 threadedly connected to the milling cutter body 2 being installed inside the auxiliary blade 8; the auxiliary blade 8 can play a role in assisting cutting; by unscrewing the fixing screw 9, the auxiliary blade 8 can be disassembled, thus facilitating the replacement of the auxiliary blade 8; by unscrewing the fixing bolt 62, the fixing bolt 62 and the limiting hole 61 on the connecting rod 6 can be separated, thus enabling the milling cutter body 2 and the milling cutter shank 1 to be disassembled and replaced; with the cooperation of the sealing groove 4 and the sealing ring 5, a sealing function can be achieved, thus preventing the leakage of cooling water.

[0025] Working Principle: Before using this high-efficiency milling cutter with overheat protection, connect the milling cutter to the output end of the drive device, and fix the milling cutter holder 1 to the output shaft of the device. This allows the device to drive the milling cutter holder 1 to rotate, thereby driving the milling cutter body 2 to process the workpiece. The chip removal groove 7 on the milling cutter body 2 facilitates the discharge of waste generated during milling. The auxiliary insert 8 assists in cutting. By unscrewing the fixing screw 9, the auxiliary insert 8 can be disassembled for easy replacement. The water inlet pipe 33 is connected to an external water pump, and the input end of the water pump is connected to a water source, allowing cooling water to enter the flow chamber 3 and then pass through the milling cutter. Water sprayed from the nozzles 35 on the cutter body 2 cools the cutter body 2, providing overheat protection. The sprayed cooling water can be discharged through the chip removal groove 7. The water inlet pipe 33 is equipped with a limit ring 32, which, under the action of the limit member 31, prevents the water inlet pipe 33 from falling off. The fixed bearing 34 prevents the water inlet pipe 33 from rotating when the cutter shank 1 rotates, ensuring the water supply. By unscrewing the fixing bolt 62, the fixing bolt 62 and the limit hole 61 on the connecting rod 6 are separated, allowing the cutter body 2 and the cutter shank 1 to be disassembled and replaced. With the cooperation of the sealing groove 4 and the sealing ring 5, a sealing effect is achieved, thus preventing the cooling water from leaking.

[0026] 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.

[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 high-efficiency milling cutter with overheat protection function, comprising a milling cutter holder (1), characterized in that: One end of the milling cutter holder (1) is connected to the milling cutter body (2). The inside of the milling cutter holder (1) is provided with a cooling mechanism for cooling the milling cutter. One side of the milling cutter body (2) is provided with a quick-release mechanism for disassembling the milling cutter. The cooling mechanism includes a flow cavity (3), which is located inside the milling cutter shank (1). A limiting member (31) is installed on the left side inside the flow cavity (3). A limiting ring (32) is rotatably connected inside the limiting member (31). A water spray hole (35) communicating with the flow cavity (3) is provided on the outer surface of the milling cutter body (2).

2. The high-efficiency end mill with overheat protection function according to claim 1, characterized in that: A water inlet pipe (33) is fixed on the left side of the limiting ring (32), and a fixed bearing (34) embedded in the inner wall of the milling cutter shank (1) is sleeved on the outer surface of the water inlet pipe (33).

3. A high-efficiency end mill with overheat protection function according to claim 1, characterized in that: The outer wall of the milling cutter body (2) is provided with a chip removal groove (7).

4. A high-efficiency end mill with overheat protection function according to claim 3, characterized in that: The side wall of the milling cutter body (2) is fixed with a sealing ring (5), and the end of the sealing ring (5) is connected to a sealing groove (4) opened inside the milling cutter shank (1).

5. A high-efficiency end mill with overheat protection function according to claim 1, characterized in that: The quick-release mechanism includes a connecting rod (6), which is fixed to one side of the milling cutter body (2).

6. A high-efficiency end mill with overheat protection function according to claim 5, characterized in that: The outer surface of the connecting rod (6) has a limiting hole (61), and a fixing bolt (62) that is threadedly connected to the milling cutter shank (1) is inserted into the limiting hole (61).

7. A high-efficiency end mill with overheat protection function according to claim 1, characterized in that: An auxiliary blade (8) is installed at the end of the milling cutter body (2), and a fixing screw (9) that is threadedly connected to the milling cutter body (2) is installed inside the auxiliary blade (8).

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