Milling tool for machining aluminum alloy accessories

Abstract

The utility model relates to a milling cutter for processing aluminum alloy accessories, which comprises a milling cutter main body, a spiral chip groove is arranged on the peripheral side of the milling cutter main body, a connecting shaft is fixedly mounted at the top end of the milling cutter main body, and a mounting structure is arranged at one end, far away from the milling cutter main body, of the connecting shaft. A water flow channel is formed in the center of the milling cutter main body, when an aluminum alloy accessory is perforated and milled, the pipeline joint is connected with an external water conveying pipeline, and high-pressure water flow is conveyed into a water storage cavity defined by the sealing sleeve, the sealing bearing and the outer wall of the connecting shaft through the pipeline joint, so that the water flow enters the water flow channel through the water injection hole; and high-pressure water flow is used for impacting chippings generated by milling in the chip removal groove, and the chippings generated by milling are upwards rushed out along the chip removal groove, so that the problem that the chippings are blocked in the chip removal groove to influence the milling effect of the milling cutter main body is avoided as much as possible.

Description

Technical Field

[0001] This utility model belongs to the field of milling tool technology, specifically relating to milling tools for machining aluminum alloy parts. Background Technology

[0002] Milling cutters are rotating cutting tools with one or more cutting teeth used for milling operations. During operation, the cutting teeth sequentially and intermittently remove the excess material from the workpiece. Milling cutters are mainly used on milling machines to machine planes, steps, grooves, shaped surfaces, and cut off workpieces.

[0003] Existing milling cutters generally have spiral grooves on their outer surface. These spiral grooves provide a space for the chips to be contained and a channel for their discharge. When milling aluminum alloys, the chips are blocked by the inner wall of the hole and cannot be discharged from the periphery of the milling cutter. They may get stuck in the spiral grooves, affecting the milling operation of the milling cutter. Utility Model Content

[0004] The purpose of this utility model is to provide a milling tool for machining aluminum alloy parts with a simple structure and reasonable design in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A milling cutter for machining aluminum alloy parts includes a milling cutter body with a helical chip removal groove on its periphery. A connecting shaft is fixedly mounted on the top of the milling cutter body. An installation structure is provided at the end of the connecting shaft away from the milling cutter body. A water flow channel is provided at the center of the milling cutter body. The end of the water flow channel away from the connecting shaft is sealed. Multiple upwardly inclined pressure-boosting holes are provided on the side wall of the sealed end of the water flow channel. The end of the pressure-boosting hole away from the water flow channel communicates with the chip removal groove. Multiple water injection holes are provided on the periphery of the connecting shaft near the end of the milling cutter body, communicating with the interior of the water flow channel. Sealed bearings are fitted on both sides of the connecting shaft at the water injection holes. The inner ring of the sealed bearing is fixed to the outer surface of the connecting shaft. The same sealing sleeve is fixedly mounted on the outer rings of the two sealed bearings. A pipe joint is installed on one side of the outer wall of the sealing sleeve. The pipe joint penetrates the side wall of the sealing sleeve and is fixedly connected to the sealing sleeve.

[0007] As a further optimization of this utility model, the installation structure includes a milling cutter connector fixedly installed on the end of the connecting shaft away from the milling cutter body, and the top of the milling cutter connector is provided with a slot.

[0008] As a further optimization of this utility model, a screw hole is provided on the bottom wall of the slot, and a locking bolt is threaded through the screw hole and screwed to the milling cutter joint. A washer is also fitted on the locking bolt.

[0009] As a further optimization of this utility model, a mounting hole for installing the locking bolt is provided on one end of the connecting shaft near the milling cutter joint.

[0010] As a further optimization of this utility model, the sealing sleeve has a cylindrical structure, and a water storage cavity for injecting water into the water flow channel is formed between the sealing sleeve, the sealing bearing and the outer wall of the connecting shaft.

[0011] As a further optimization of this utility model, the pipe joint is provided with an external thread at one end outside the sealing sleeve, and the inner wall of the chip discharge groove is provided with a spiral-shaped rib.

[0012] The beneficial effects of this utility model are as follows: When milling aluminum alloy parts, the pipe joint is connected to the external water supply pipe, and the high-pressure water flow is delivered through the pipe joint to the water storage cavity formed between the sealing sleeve, the sealing bearing and the outer wall of the connecting shaft. The water flow enters the water flow channel through the water injection hole and is sprayed obliquely upward from the pressure boosting hole into the chip removal groove. The high-pressure water flow impacts the milling chips generated in the chip removal groove and pushes the milling chips upward along the chip removal groove, thus avoiding the problem of chips getting stuck in the chip removal groove and affecting the milling effect of the milling cutter body. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the installation structure of the sealed bearing of this utility model;

[0015] Figure 3 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0016] Figure 4 This is a utility model Figure 3 A magnified view of a local detail at point A in the middle.

[0017] In the diagram: 1. Milling cutter body; 2. Chip removal groove; 3. Connecting shaft; 4. Milling cutter connector; 5. Slot; 6. Screw hole; 7. Mounting hole; 8. Locking bolt; 9. Gasket; 10. Water flow channel; 11. Pressure boosting hole; 12. Water injection hole; 13. Sealed bearing; 14. Sealing sleeve; 15. Pipe connector; 16. External thread; 17. Raised rib. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] Example

[0020] like Figure 1 - Figure 4 As shown, the milling cutter for machining aluminum alloy parts includes a milling cutter body 1. The milling cutter body 1 has a chip removal groove 2 with a spiral structure on its periphery. When the aluminum alloy parts are drilled through the milling cutter body 1, the aluminum alloy chips generated during milling can be removed through the chip removal groove 2, which facilitates the drilling of aluminum alloy parts.

[0021] A connecting shaft 3 is fixedly installed at the top of the milling cutter body 1. An installation structure is provided at the end of the connecting shaft 3 away from the milling cutter body 1. The installation structure includes a milling cutter connector 4 fixedly installed on the end of the connecting shaft 3 away from the milling cutter body 1. A slot 5 is provided at the top of the milling cutter connector 4 for snapping the milling cutter connector 4 onto the output end of an external machine tool through the slot 5.

[0022] A screw hole 6 is provided on the bottom wall of the slot 5. A locking bolt 8 is threaded through the screw hole 6 and screwed to the milling cutter connector 4. A washer 9 is also fitted on the locking bolt 8. A mounting hole 7 for installing the locking bolt 8 is provided on the end of the connecting shaft 3 near the milling cutter connector 4. After the milling cutter connector 4 is snapped onto the output end of the external machine tool through the slot 5, the locking bolt 8 can be installed from the mounting hole 7, so that the milling cutter connector 4 is screwed to the output end of the external machine tool, thereby fixing the milling cutter body 1.

[0023] The milling cutter body 1 has a water flow channel 10 in the center. The end of the water flow channel 10 away from the connecting shaft 3 is sealed. Multiple upwardly inclined pressure boosting holes 11 are opened on the side wall of the sealed end of the water flow channel 10. The diameter of the pressure boosting holes 11 is smaller than the inner diameter of the water flow channel 10, so as to achieve the pressure boosting effect.

[0024] The end of the pressure boosting hole 11 away from the water flow channel 10 is connected to the chip removal groove 2, so that the water flow can be discharged into the chip removal groove 2 through the pressure boosting hole 11. The water flow with a certain pressure impacts the chip removal groove 2, and the milling chips generated are flushed upward along the chip removal groove 2, so as to avoid the chips getting stuck in the chip removal groove 2 and affecting the milling effect of the milling cutter body 1.

[0025] Multiple water injection holes 12 communicating with the interior of the water flow channel 10 are provided on the periphery of the connecting shaft 3 near the end of the milling cutter body 1. Sealed bearings 13 are fitted on both sides of the connecting shaft 3. The inner ring of the sealed bearing 13 is fixed to the outer surface of the connecting shaft 3. The same sealing sleeve 14 is fixedly installed on the outer ring of the two sealing bearings 13. The sealing sleeve 14 has a cylindrical structure. A water storage cavity for injecting water into the water flow channel 10 is formed between the sealing sleeve 14, the sealed bearing 13 and the outer wall of the connecting shaft 3.

[0026] A pipe joint 15 is installed on one side of the outer wall of the sealing sleeve 14. The pipe joint 15 penetrates the side wall of the sealing sleeve 14 and is fixedly connected to the sealing sleeve 14. The end of the pipe joint 15 located outside the sealing sleeve 14 is provided with an external thread 16, which facilitates the connection of an external water pipe through the external thread 16 to transport water to the water storage chamber, and transports water to the water flow channel 10 through the water injection hole 12 opened on the connecting shaft 3.

[0027] The inner wall of the chip removal groove 2 is provided with a spiral-shaped rib 17. The rib 17 not only improves the strength of the milling cutter body 1, but also lifts the milling chips generated by milling, reduces the contact area between the chips and the inner wall of the chip removal groove 2, and facilitates the removal of the milling chips by water flow.

[0028] It should be noted that, when using this milling cutter for machining aluminum alloy parts, firstly, the slot 5 on the milling cutter connector 4 is engaged with the output end of the external machine tool. Then, the locking bolt 8 is threaded through the screw hole 6 from the mounting hole 7 and screwed into the output end of the external machine tool to complete the installation of the milling cutter body 1. When milling aluminum alloy parts through the milling cutter body 1, the pipe connector 15 can be connected to an external water supply pipe to deliver high-pressure water to the sealing sleeve 14 through the pipe connector 15. The sealing bearing 13 and the outer wall of the connecting shaft 3 form an enclosed shape. In the formed water storage chamber, after the water flows into the water storage chamber, it can enter the water flow channel 10 through the water injection hole 12, and be sprayed obliquely upward into the chip removal groove 2 from the pressure boosting hole 11. The high-pressure water flow impacts the milling chips generated in the chip removal groove 2, and flushes the milling chips upward along the chip removal groove 2. This avoids the chips getting stuck in the chip removal groove 2, which would affect the milling effect of the milling cutter body 1. At the same time, the flowing water flow can also reduce the temperature of the milling cutter body 1, preventing the milling cutter body 1 from being damaged by excessive temperature during the milling process, which can greatly improve the service life of the milling cutter body 1.

[0029] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A milling cutter for machining aluminum alloy parts, comprising a milling cutter body (1), wherein the milling cutter body (1) has a chip removal groove (2) with a spiral structure on its periphery, and a connecting shaft (3) is fixedly installed at the top end of the milling cutter body (1), wherein a mounting structure is provided at the end of the connecting shaft (3) away from the milling cutter body (1), characterized in that: The milling cutter body (1) has a water flow channel (10) at its center. The end of the water flow channel (10) away from the connecting shaft (3) is sealed. Multiple upwardly inclined pressure boosting holes (11) are provided on the side wall of the sealed end of the water flow channel (10). The end of the pressure boosting hole (11) away from the water flow channel (10) is connected to the chip removal groove (2). Multiple water injection holes are provided on the periphery of the end of the connecting shaft (3) near the milling cutter body (1) and are connected to the interior of the water flow channel (10). The hole (12) is provided with a sealing bearing (13) on both sides of the connecting shaft (3). The inner ring of the sealing bearing (13) is fixed to the outer surface of the connecting shaft (3). The same sealing sleeve (14) is fixedly installed on the outer ring of the two sealing bearings (13). A pipe joint (15) is installed on the outer wall of one side of the sealing sleeve (14). The pipe joint (15) penetrates the side wall of the sealing sleeve (14) and is fixedly connected to the sealing sleeve (14).

2. The milling cutter for machining aluminum alloy parts according to claim 1, characterized in that: The mounting structure includes a milling cutter connector (4) fixedly mounted on the end of the connecting shaft (3) away from the milling cutter body (1), and the top of the milling cutter connector (4) is provided with a slot (5).

3. The milling cutter for machining aluminum alloy parts according to claim 2, characterized in that: A screw hole (6) is provided on the bottom wall of the slot (5). A locking bolt (8) is threaded through the screw hole (6) and screwed to the milling cutter joint (4). A washer (9) is also fitted on the locking bolt (8).

4. The milling cutter for machining aluminum alloy parts according to claim 3, characterized in that: The connecting shaft (3) has a mounting hole (7) for installing the locking bolt (8) on one end near the milling cutter joint (4).

5. The milling cutter for machining aluminum alloy parts according to claim 1, characterized in that: The sealing sleeve (14) has a cylindrical structure, and a water storage cavity for injecting water into the water flow channel (10) is formed between the outer wall of the sealing sleeve (14), the sealing bearing (13) and the connecting shaft (3).

6. The milling cutter for machining aluminum alloy parts according to claim 1, characterized in that: The pipe joint (15) is provided with an external thread (16) at one end outside the sealing sleeve (14), and the inner wall of the chip discharge groove (2) is provided with a spiral rib (17).

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