Anti-falling combined end mill for aerospace impeller machining

Abstract

The utility model relates to the technical field of milling cutters, in particular to an anti-falling combined end milling cutter for aerospace impeller machining, which comprises a cutter handle, a cutter body positioned in the cutter handle and a cutter head arranged in the cutter body, a positioning bolt is mounted below the outer wall of the cutter handle, a threaded groove II is formed in one end of the positioning bolt, and a threaded groove II is formed in the other end of the positioning bolt. Bolts and positioning grooves are arranged at the bottom of the knife handle and alternately distributed at the bottom of the knife handle, a first threaded groove is formed in the top end of the outer wall of the knife body, a rubber ring is arranged in the middle of the outer wall of the knife body, a positioning hole is formed in the lower middle portion of the outer wall of the knife body, and a positioning block is fixed to the lower portion of the outer wall of the knife body. A third threaded groove is formed in the top end of the inner wall of the cutter body, and a damping ring is arranged on the lower portion of the inner wall of the cutter body. According to the utility model, the cutter body can be taken out to be cleaned or replaced as required through the threaded groove I, so that the disassembly time is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutters, in particular to an anti-falling combined end milling cutter for machining aerospace impellers. Background Art

[0002] In mechanical processing, milling cutters are often used to cut workpieces made of metal, plastic and other materials because of their advantages such as smooth cutting. When working, each tooth cuts off the excess of the workpiece intermittently in turn. With the rapid development of the aerospace industry, all kinds of precision parts required require milling cutters for cutting.

[0003] Existing disclosed technical solutions, such as a tungsten steel drill bit with internal cooling in a milling cutter shank with publication number CN217666655U, include a rod portion, a replaceable head portion is provided at the top of the rod portion, a connecting mechanism is provided between the rod portion and the head portion, the connecting mechanism includes a connecting rod, a connecting groove and a fixing hole, which solves the problem of inconvenience in replacing the cutter head when the cutter head needs to be replaced after use, and is highly practical.

[0004] However, in the implementation of relevant technologies, it was found that the drill bit designed above has the following problems: some existing milling cutters insert the cutter head directly into the connecting groove and only use a bolt to fix one end. Not only is it easy to deviate during use and affect the accuracy of the parts, but the milling cutter rotates at high speed to cut the parts to be processed, the connection between the shank and the cutter head is easy to shake, and the strong interaction force is also easy to crack and break the bolts, causing the milling cutter to fall off, causing safety accidents and endangering personnel safety. For this reason, we propose a combination end mill that prevents falling off for aerospace impeller processing. Utility Model Content

[0005] The utility model aims to provide a combined end milling cutter for machining aerospace impellers and preventing them from falling off, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-dropping combined end mill for machining aerospace impellers, comprising a shank, a blade body located inside the shank, and a cutter head arranged inside the blade body;

[0007] A positioning bolt is installed at the lower part of the outer wall of the knife handle, and a second threaded groove is provided at one end of the positioning bolt. A bolt and a positioning groove are provided at the bottom of the knife handle, and the bolt and the positioning groove are alternately distributed at the bottom of the knife handle. A first threaded groove is provided at the top of the outer wall of the blade body, a rubber ring is provided in the middle of the outer wall of the blade body, a positioning hole is provided at the middle and lower part of the outer wall of the blade body, a positioning block is fixed at the lower part of the outer wall of the blade body, a third threaded groove is provided at the top of the inner wall of the blade body, a shock-absorbing ring is provided at the lower part of the inner wall of the blade body, a second threaded groove is provided at the top of the outer wall of the blade head, and a water outlet is provided at the bottom end of the blade head.

[0008] As a further description of the above technical solution: a connecting portion is fixed to the top end of the handle.

[0009] As a further description of the above technical solution: the blade is connected to the handle through a threaded groove, a positioning block, a bolt and a positioning bolt.

[0010] As a further description of the above technical solution: the cutter head is connected to the cutter body via a thread groove three.

[0011] As a further description of the above technical solution: the blade and the handle are threadedly connected.

[0012] As a further description of the above technical solution: the positioning bolt and the bolt are threadedly connected.

[0013] As a further description of the above technical solution: the blade head and the blade body are detachably connected.

[0014] It can be seen from the above description that the technical problem to be solved by this application can definitely be solved through the above technical solution of this application.

[0015] At the same time, through the above technical solutions, the utility model has at least the following beneficial effects:

[0016] The utility model can take out the blade for cleaning or replacement when necessary by setting the thread groove, thus saving disassembly time;

[0017] The utility model can fix the blade firmly inside the handle by means of the positioning bolt and the bolt, thereby reducing the amplitude of the shaking.

[0018] The utility model can reduce the size of the pores at the connection by providing a shock-absorbing ring, and effectively prevent safety problems such as the breakage of the cutter head due to large interaction forces during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the blade structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0022] Figure 4 For this utility model Figure 3 A in the figure is an enlarged schematic diagram of the local structure;

[0023] In the figure: 1. knife handle; 2. knife head; 3. connection part; 4. positioning bolt; 5. bolt; 6. positioning block; 7. positioning hole; 8. shock-absorbing ring; 9. thread groove three; 10. knife body; 11. thread groove one; 12. rubber ring; 13. water outlet; 14. positioning groove; 15. thread groove two. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model. Embodiment 1

[0025] As attached Figure 2 , Figure 3 and Figure 4 As shown, the utility model provides a technical solution: an anti-dropping combined end mill for machining aerospace impellers, comprising a handle 1, a blade body 10 located inside the handle 1, and a cutter head 2 arranged inside the blade body 10, wherein the cutter head 2 and the blade body 10 are detachably connected;

[0026] A positioning bolt 4 is installed at the lower part of the outer wall of the knife handle 1, and a thread groove 2 15 is provided at one end of the positioning bolt 4. A bolt 5 and a positioning groove 14 are provided at the bottom of the knife handle 1, and the bolt 5 and the positioning groove 14 are alternately distributed at the bottom of the knife handle 1. The positioning bolt 4 and the bolt 5 are threadedly connected. A connecting portion 3 is fixed at the top of the knife handle 1. A thread groove 11 is provided at the top of the outer wall of the blade 10. A rubber ring 12 is provided in the middle of the outer wall of the blade 10. A positioning hole 7 is provided in the middle and lower part of the outer wall of the blade 10. A positioning block 6 is fixed at the lower part of the outer wall of the blade 10. A thread groove 3 9 is provided at the top of the inner wall of the blade 10. A shock-absorbing ring 8 is arranged below the inner wall of the blade body 10. The blade body 10 is connected to the handle 1 through a threaded groove 11, a positioning block 6, a bolt 5 and a positioning bolt 4. The blade body 10 and the handle 1 are threadedly connected. The connecting part 3 is inserted into the device, the positioning block 6 on the outer wall of the blade body 10 is aligned with the positioning groove 14, the blade body 10 is screwed into the handle 1 through the threaded groove 11, the positioning bolt 4 is inserted into the positioning hole 7, and then the bolt 5 is inserted into the threaded groove 2 15 at one end of the positioning bolt 4 to fix the blade body 10. The rubber ring 12 on the outer wall of the blade body 10 increases the friction between the blade body 10 and the handle 1, making the blade body 10 more stable. Embodiment 2

[0027] The solution in the first embodiment is further introduced below in combination with a specific working method, as described below for details:

[0028] As attached Figure 1 and Figure 3As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, a thread groove 2 15 is opened on the upper part of the outer wall of the cutter head 2, a water outlet 13 is opened at the bottom end of the cutter head 2, the cutter head 2 is connected to the blade 10 through the thread groove 3 9, the cutter head 2 and the blade 10 are threadedly connected, the cutter head 2 is screwed into the blade 10 through the thread groove 3 9, the shock-absorbing ring 8 on the inner wall of the blade 10 increases the stability of the cutter head 2 during operation, and the water outlet 13 opened at the cutting end of the cutter head 2 can spray coolant for cooling during operation.

[0029] From the above, we can know that:

[0030] The utility model aims at the technical problem that some existing milling cutters insert the cutter head directly into the connection slot and only use a bolt to fix one end, which is not only easy to deviate during use and affect the precision of the parts, but also the connection between the handle and the cutter head is easy to shake when the milling cutter rotates at high speed to cut the parts to be processed, and the strong interaction force is also easy to crack and break the bolt, causing the milling cutter to fall off, causing safety accidents and endangering personnel safety; the technical solutions of the above embodiments are adopted. At the same time, the implementation process of the above technical solution is:

[0031] Insert the connecting part 3 into the equipment, align the positioning block 6 on the outer wall of the blade body 10 with the positioning groove 14, screw the blade body 10 into the handle 1 through the thread groove 11, insert the positioning bolt 4 into the positioning hole 7, and then insert the bolt 5 into the thread groove 2 15 at one end of the positioning bolt 4 to fix the blade body 10. The rubber ring 12 on the outer wall of the blade body 10 increases the friction between the blade body 10 and the handle 1, making the blade body 10 more stable. The cutter head 2 is screwed into the blade body 10 through the thread groove 3 9. The shock-absorbing ring 8 on the inner wall of the blade body 10 increases the stability of the cutter head 2 during operation. The water outlet 13 opened at the cutting end of the cutter head 2 can spray coolant for cooling during operation.

[0032] Through the above configuration, the present application can certainly solve the above technical problems and achieve the following technical effects:

[0033] The utility model can remove the blade 10 for cleaning or replacement when necessary by setting the thread groove 11, thus saving disassembly time;

[0034] The utility model can fix the blade 10 firmly inside the handle 1 by means of the positioning bolt 4 and the bolt 5, thereby reducing the amplitude of its shaking.

[0035] The utility model can reduce the size of the pores at the connection by providing the shock-absorbing ring 8, and effectively prevent safety problems such as the breakage of the cutter head 2 caused by the large interaction force during processing.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combination end mill for preventing falling off for machining aerospace impellers, characterized in that: It comprises a knife handle (1), a knife body (10) located inside the knife handle (1), and a knife head (2) arranged inside the knife body (10); A positioning bolt (4) is installed at the lower part of the outer wall of the knife handle (1), and a second thread groove (15) is provided at one end of the positioning bolt (4). A bolt (5) and a positioning groove (14) are provided at the bottom of the knife handle (1), and the bolt (5) and the positioning groove (14) are alternately distributed at the bottom of the knife handle (1). A first thread groove (11) is provided at the top of the outer wall of the blade body (10), a rubber ring (12) is provided in the middle of the outer wall of the blade body (10), a positioning hole (7) is provided at the middle and lower part of the outer wall of the blade body (10), a positioning block (6) is fixed at the lower part of the outer wall of the blade body (10), a third thread groove (9) is provided at the top of the inner wall of the blade body (10), and a shock absorbing ring (8) is provided at the lower part of the inner wall of the blade body (10). A second thread groove (15) is provided at the upper part of the outer wall of the blade head (2), and a water outlet (13) is provided at the lower end of the blade head (2).

2. The anti-dropping combined end mill for machining aerospace impellers according to claim 1, characterized in that: A connecting portion (3) is fixed to the top end of the knife handle (1).

3. The anti-falling combined end mill for machining aerospace impellers according to claim 1, characterized in that: The blade body (10) is connected to the blade handle (1) via a threaded groove (11), a positioning block (6), a bolt (5) and a positioning bolt (4).

4. The anti-dropping combined end mill for machining aerospace impellers according to claim 1, characterized in that: The cutter head (2) is connected to the cutter body (10) via a third thread groove (9).

5. The anti-dropping combined end mill for machining aerospace impellers according to claim 1, characterized in that: The blade body (10) and the handle (1) are threadedly connected.

6. The anti-dropping combined end mill for machining aerospace impellers according to claim 1, characterized in that: The positioning bolt (4) and the bolt (5) are threadedly connected.

7. The anti-dropping combined end mill for machining aerospace impellers according to claim 1, characterized in that: The blade head (2) and the blade body (10) are detachably connected.

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