Lengthened milling cutter for cutting aerospace gear

Abstract

The utility model belongs to the technical field of milling cutters, particularly relates to a lengthened milling cutter for cutting aerospace gears, and aims to solve the problems that the overall length of the conventional milling cutter cannot be adjusted, and milling cutters with different lengths need to be replaced when holes with different depths are milled, so that the milling cutter is troublesome. Comprising a milling cutter fixing handle, a connecting piece is fixed to the left side of the milling cutter fixing handle, and an adjusting mechanism for adjusting the length of a milling cutter is arranged on the right side of the milling cutter fixing handle; and the adjusting mechanism comprises a lengthened pipe body, the lengthened pipe body is telescopically connected to the right side of the milling cutter fixing handle, and a connecting block is fixed to one end of the lengthened pipe body. According to the milling cutter disclosed by the utility model, the fixing bolt on the fixing handle is screwed off to release the fixation of the lengthened pipe body, and the lengthened pipe body can be manually pulled through the limiting block arranged on the connecting block under the matching of the limiting groove, so that the overall length of the milling cutter is adjusted.

Description

Technical Field

[0001] This utility model relates to an extended milling cutter, specifically an extended milling cutter for aerospace gear cutting, belonging to the field of milling cutter technology. Background Technology

[0002] In the aerospace industry, gear cutting is a crucial process requiring extremely high precision and reliability. To meet this demand, extended end mills are widely used in gear cutting due to their unique advantages. An extended end mill is a specially designed cutting tool with an extended shank and / or cutting edge compared to a standard end mill. This design allows the end mill to cut deep into the workpiece, making it particularly suitable for machining large, complex gears in the aerospace field.

[0003] In the prior art, such as the disc gear milling cutter for aerospace blade machining disclosed in publication number CN221494355U, a gear disc cutter body is included. A gear tool holder is fixedly connected to the outer wall of the gear disc cutter body. A cutter head is installed on the lower outer wall of the gear tool holder, and a screw is installed on the upper outer wall of the gear tool holder. An outflow hole is provided at the connection between the cutter head and the gear tool holder. A cutter root is installed on the inner wall of the gear disc cutter body, and a liquid inlet is opened on the upper outer wall of the cutter root. A cutter root clamping surface is fixed on the outer wall of the cutter root. Coolant can enter the bottom of the gear disc cutter body through the liquid inlet and then enter the cutter body cooling tank through the coolant hole. The cutter root and the cutter root clamping surface are fixed to the machine body, enabling the gear disc cutter body to be driven.

[0004] Although the above-mentioned technical solution allows the coolant to enter the bottom of the gear disc cutter body through the inlet and then enter the coolant tank of the cutter body through the coolant hole to achieve a cooling effect, it cannot adjust the overall length of the milling cutter during use. When milling holes of different depths, it is necessary to change the milling cutter of different lengths, which is quite troublesome. In view of this, an extended milling cutter for aerospace gear cutting is provided to overcome the above-mentioned defects. Utility Model Content

[0005] This invention provides an extended milling cutter for aerospace gear cutting, which solves the problem that the overall length of the milling cutter cannot be adjusted and that it is cumbersome to change milling cutters of different lengths when milling holes of different depths.

[0006] The present invention achieves the above objectives through the following technical solution: an extended milling cutter for aerospace gear cutting, comprising a milling cutter fixing shank, wherein a connecting member is fixed on the left side of the milling cutter fixing shank, and an adjustment mechanism for adjusting the length of the milling cutter is provided on the right side of the milling cutter fixing shank;

[0007] The adjustment mechanism includes an extended tube body, which is telescopically connected to the right side of the milling cutter fixing shank. A connecting block is fixed to one end of the extended tube body, and a limit block is fixed to the outer wall of the connecting block. A limit groove is slidably connected to the outer wall of the limit block and opened inside the milling cutter fixing shank. A fixing bolt is installed on the outer wall of the milling cutter fixing shank and abuts against the outer wall of the extended tube body. A quick-release mechanism for disassembling the milling cutter is provided on the right side of the extended tube body.

[0008] As a further improvement of this utility model: the quick-release mechanism includes a connecting rod, which is installed on the right side of the extended tube.

[0009] As a further embodiment of this utility model: a limiting hole is provided on the outer wall of the connecting rod, a limiting bolt installed on the extended tube is inserted into the limiting hole, and a milling mechanism for milling the workpiece is fixed at the end of the connecting rod.

[0010] As a further embodiment of this utility model: the milling mechanism includes a milling cutter body, which is fixed to the end of the connecting rod.

[0011] As a further embodiment of this utility model: a plurality of main milling edges are fixed at the end of the milling cutter body, and secondary milling edges are fixed on the outer wall of the main milling edges.

[0012] As a further improvement of this utility model, the extended tube body has a flow cavity that communicates with the connecting member inside.

[0013] As a further improvement of this utility model, the end of the milling cutter body is provided with a water outlet that communicates with the extended tube body.

[0014] The beneficial effects of this utility model are: by unscrewing the fixing bolts on the fixing handle, the fixing of the extended tube body is released, and with the cooperation of the limiting block on the connecting block and the limiting groove, the extended tube body can be manually pulled to adjust the overall length of the milling cutter;

[0015] Cooling water is sprayed out through the outlet hole, so that the cooling water is sprayed out from the inside to the outside through the hole after milling the workpiece, thereby cooling the main milling edge and the secondary milling edge on the milling cutter body and improving its service life. Attached Figure Description

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

[0017] Figure 2 This is a cross-sectional structural diagram of the milling cutter fixing shank of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the milling cutter body 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 retainer; 2. Connector; 3. Extended tube; 31. Connecting block; 32. Limiting block; 33. Limiting groove; 34. Fixing bolt; 4. Connecting rod; 41. Limiting hole; 42. Limiting bolt; 5. Milling cutter body; 51. Main milling edge; 52. Secondary milling edge; 6. Flow chamber; 7. Water outlet. 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, an extended milling cutter for aerospace gear cutting includes a milling cutter retaining shank 1, a connecting piece 2 fixed on the left side of the milling cutter retaining shank 1, and an adjustment mechanism for adjusting the length of the milling cutter on the right side of the milling cutter retaining shank 1.

[0023] The adjustment mechanism includes an extended tube body 3, which is telescopically connected to the right side of the milling cutter retaining shank 1. A connecting block 31 is fixed to one end of the extended tube body 3. A limit block 32 is fixed to the outer wall of the connecting block 31. A limit groove 33 is slidably connected to the outer wall of the limit block 32, which is opened inside the milling cutter retaining shank 1. A fixing bolt 34 is installed on the outer wall of the milling cutter retaining shank 1 and abuts against the outer wall of the extended tube body 3. A quick-release mechanism for disassembling the milling cutter is provided on the right side of the extended tube body 3. The quick-release mechanism includes a connecting rod 4, which is installed on the right side of the extended tube body 3. A limit hole 41 is opened on the outer wall of the connecting rod 4, and the inside of the limit hole 41 is inserted into the connection. There is a limiting bolt 42 installed on the extended tube body 3, and a milling mechanism for milling the workpiece is fixed at the end of the connecting rod 4. By unscrewing the fixing bolt 34 on the milling cutter fixing handle 1, the fixing of the extended tube body 3 is released. With the cooperation of the limiting block 32 on the connecting block 31 and the limiting groove 33, the extended tube body 3 can be manually pulled to adjust the overall length of the milling cutter. By unscrewing the limiting bolt 42, the limiting bolt 42 and the limiting hole 41 are separated. Under the action of the connecting rod 4, the milling cutter body 5 and the extended tube body 3 can be separated, so that the milling cutter body 5 can be replaced separately, improving practicality. Example 2

[0024] In addition to all the technical features included in Embodiment 1, this embodiment also includes: a milling mechanism comprising a milling cutter body 5, the milling cutter body 5 being fixed to the end of the connecting rod 4, a plurality of main milling edges 51 being fixed to the end of the milling cutter body 5, secondary milling edges 52 being fixed to the outer wall of the main milling edges 51, a flow cavity 6 communicating with the connecting member 2 being provided inside the extended tube body 3, and a water outlet 7 communicating with the extended tube body 3 being provided at the end of the milling cutter body 5, the machine tool driving the milling cutter fixing shank 1 to rotate, thereby driving the milling cutter body 5 to rotate, and thus... The workpiece is machined by milling the main milling edge 51. The milled hole, with the assistance of the secondary milling edge 52, can be further polished to make the hole wall smoother. The external cooling water pipe and connector 2 are connected so that the cooling water enters the milling cutter body 5 through the flow chamber 6 inside the extended pipe body 3, and then sprays out through the water outlet 7. The cooling water sprays out from the inside to the outside through the milled hole of the workpiece, thereby cooling the main milling edge 51 and the secondary milling edge 52 on the milling cutter body 5 and improving their service life.

[0025] Working principle: Before using this extended milling cutter for aerospace gear cutting, the milling cutter holder 1 is connected and fixed to the output shaft of the machine tool. The connecting piece 2 facilitates the positioning and connection of the milling cutter. During use, the machine tool drives the milling cutter holder 1 to rotate, which in turn drives the milling cutter body 5 to rotate, thereby machining the workpiece. The main milling edge 51 mills the workpiece, and the milled groove, with the cooperation of the secondary milling edge 52, can further polish the hole wall, making the hole wall smoother. The external cooling water pipe is connected to the connecting piece 2, allowing cooling water to enter the milling cutter body 5 through the flow chamber 6 inside the extended pipe body 3, and then spray out through the water outlet 7. This allows cooling water to spray outwards from the inside through the milled holes in the workpiece, thereby cooling the main milling edge 51 and the secondary milling edge 52 on the milling cutter body 5 and improving its service life. When machining deep holes, the fixing bolt 34 on the milling cutter fixing shank 1 can be unscrewed to release the fixation of the extended tube body 3. With the cooperation of the limiting block 32 on the connecting block 31 and the limiting groove 33, the extended tube body 3 can be manually pulled to adjust the overall length of the milling cutter. By unscrewing the limiting bolt 42, the limiting bolt 42 and the limiting hole 41 can be separated. Under the action of the connecting rod 4, the milling cutter body 5 and the extended tube body 3 can be separated, so that the milling cutter body 5 can be replaced separately, improving its practicality.

[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. An extended milling cutter for aerospace gear cutting, comprising a milling cutter retaining shank (1), characterized in that: A connector (2) is fixed on the left side of the milling cutter fixing shank (1), and an adjustment mechanism for adjusting the length of the milling cutter is provided on the right side of the milling cutter fixing shank (1). The adjustment mechanism includes an extended tube (3), which is telescopically connected to the right side of the milling cutter fixing handle (1). One end of the extended tube (3) is fixed with a connecting block (31). The outer wall of the connecting block (31) is fixed with a limiting block (32). The outer wall of the limiting block (32) is slidably connected with a limiting groove (33) opened inside the milling cutter fixing handle (1). The outer wall of the milling cutter fixing handle (1) is equipped with a fixing bolt (34) that abuts against the outer wall of the extended tube (3). The right side of the extended tube (3) is provided with a quick-release mechanism for disassembling the milling cutter.

2. The extended milling cutter for aerospace gear cutting according to claim 1, characterized in that: The quick-release mechanism includes a connecting rod (4), which is installed on the right side of the extended tube (3).

3. An extended milling cutter for aerospace gear cutting according to claim 2, characterized in that: The outer wall of the connecting rod (4) has a limiting hole (41), and a limiting bolt (42) installed on the extended tube (3) is inserted into the limiting hole (41). The end of the connecting rod (4) is fixed with a milling mechanism for milling the workpiece.

4. An extended milling cutter for aerospace gear cutting according to claim 3, characterized in that: The milling mechanism includes a milling cutter body (5), which is fixed to the end of the connecting rod (4).

5. An extended milling cutter for aerospace gear cutting according to claim 4, characterized in that: The end of the milling cutter body (5) is fixed with a number of main milling edges (51), and the outer wall of the main milling edges (51) is fixed with secondary milling edges (52).

6. An extended milling cutter for aerospace gear cutting according to claim 5, characterized in that: The extended tube (3) has a flow cavity (6) that communicates with the connector (2).

7. An extended milling cutter for aerospace gear cutting according to claim 6, characterized in that: The end of the milling cutter body (5) is provided with a water outlet (7) that communicates with the extended tube body (3).

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