End mill for machining flange channel

By designing inserts, slots, moving rods, and reinforcing components on the end mill, the problem of having to replace the entire cutter head when damaged in the prior art is solved, enabling quick disassembly and replacement of the cutter head and improving machining efficiency.

CN223960591UActive Publication Date: 2026-03-03WEIHAI SHUNJIE PRECISION MOLD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

The existing end mills have an integrated design of the cutter head and the shank, which means that the entire cutter head needs to be replaced when it is damaged, resulting in wasted shank space and inconvenient disassembly.

Method used

An end mill consisting of a shank and a cutter head is designed. By setting a insert, slot, moving rod, drive mechanism and reinforcement components on the shank, the cutter head can be quickly disassembled and replaced. The stable installation of the cutter head is achieved by the cooperation of the drive mechanism and reinforcement components.

Benefits of technology

It enables quick disassembly and replacement of the cutter head, avoids waste of the tool holder, simplifies the replacement process, and improves processing efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223960591U_ABST
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Abstract

The utility model relates to the field of machining cutter design, in particular to an end mill for machining a flange channel, which comprises a cutter handle and a cutter head, the cutter head is positioned at the upper end of the cutter handle, the lower end of the cutter head is fixedly connected with an inserting rod, and the upper end face of the cutter handle is provided with a mounting groove for inserting the inserting rod. First inserting blocks are fixedly connected to the ends, close to the inserting rods, of the multiple moving rods, the first inserting blocks are inserted into the first inserting grooves to be connected with the inserting rods, an annular groove is formed in the circumferential face of the cutter handle, a moving seat is slidably connected into the annular groove, a reinforcing assembly is installed in the moving seat, and the reinforcing assembly and the moving seat are matched to be used for fixing the driving mechanism. According to the end milling cutter, the cutter head can be conveniently and quickly detached from the cutter handle to be independently replaced, and the whole end milling cutter consisting of the cutter handle and the cutter head does not need to be replaced, so that the waste of the cutter handle can be avoided, and the cutter head is very convenient to detach and install.
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Description

Technical Field

[0001] This utility model relates to the field of machining tool design, and in particular to an end mill for machining flange channels. Background Technology

[0002] In the machinery manufacturing industry, flanges are required. In the flange processing, end mills are needed to process the flange channels.

[0003] Existing end mills for machining flange channels consist of a shank and a cutter head, which are integrated. During machining, the cutter head is in direct contact with the flange for extended periods, making it prone to damage. When replacing the end mill, the entire end mill must be removed from the machining equipment, making it inconvenient to replace the cutter head separately. This not only wastes the shank but also makes removing the end mill from the machining equipment cumbersome. Therefore, it is necessary to design an end mill specifically for machining flange channels. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a milling cutter for machining flange channels.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an end mill for machining flange channels, comprising a shank and a cutter head, the cutter head being located at the upper end of the shank, and a plug rod being fixedly connected to the lower end of the cutter head. The plug rod has four end faces (front, back, left, and right) each with a first slot. The upper end face of the shank has a mounting groove for inserting the plug rod. The shank has four first receiving grooves communicating with the mounting grooves inside. Four moving rods are slidably connected inside the shank. Each moving rod has a first plug block fixedly connected to one end near the plug rod, and the first receiving groove corresponds to the position of the first plug block and is used to accommodate the first plug block. The first plug block is connected to the plug rod by being inserted into the first slot. Each moving rod has a drive mechanism installed inside, which drives the moving rod and the plug block to move. An annular groove is formed on the circumferential surface of the shank, and a moving seat is slidably connected inside the annular groove. The moving seat is connected to the drive mechanism, and a reinforcing component is installed inside the moving seat, which cooperates with the moving seat to fix the drive mechanism.

[0006] Furthermore, the first storage slot and the first slot are the same size, and the positions of the multiple first storage slots correspond one-to-one with the positions of the multiple first slots.

[0007] Furthermore, the driving mechanism includes connecting rods, a support ring, a fixed seat, guide rods, and springs. Multiple guide rods are fixedly connected inside the annular groove, each passing through the movable seat, and the movable seat is slidably connected to the multiple guide rods. Springs are fitted onto the circumferential surfaces of the multiple guide rods. One end of each spring is fixedly connected to the movable seat, and the other end is fixedly connected to the tool handle. A support ring is fixedly connected to the upper end of the movable seat, located within the annular groove. Four fixed seats are fixedly connected to the circumferential surface of the support ring. Connecting rods are rotatably connected inside each of the multiple fixed seats. These connecting rods are located within the multiple movable rods and are rotatably connected to them.

[0008] Furthermore, the reinforcement component includes a handle, a threaded rod, a second insert, a second storage groove, and a second slot. The movable base is internally threaded with a threaded rod, the right end of which is fixedly connected to a handle, and the left end of which is fixedly connected to a second insert. The circumferential surface of the handle is provided with a second slot for inserting the second insert. The second slot is interconnected with an annular groove. The movable base is internally provided with a second storage groove that can accommodate the second insert.

[0009] Furthermore, the circumferential surface of the movable seat is provided with multiple arc-shaped grooves.

[0010] Furthermore, both the insertion rod and the end face of the mounting groove are square in shape.

[0011] This utility model has the following beneficial effects:

[0012] Compared with existing technologies, this end mill for machining flange channels, through the cooperation of the moving rod, the first insert block, the insert rod, the first slot, the first storage slot, the moving seat, the drive mechanism, and the reinforcing components, allows for quick and easy removal and replacement of the cutter head from the tool holder when it is damaged, without the need to replace the entire end mill consisting of the tool holder and the cutter head. This not only avoids the waste of the tool holder, but also makes the removal and installation of the cutter head very convenient. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an end mill for machining flange channels, as proposed in this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of an end mill for machining flange channels after the cutter head is disassembled, as proposed in this utility model.

[0015] Figure 3 This utility model Figure 2 A magnified structural diagram of A in the middle;

[0016] Figure 4This is a schematic diagram of the structure of an end mill for machining flange channels after disassembling the cutter head and the cutter holder, as proposed in this utility model.

[0017] Figure 5 This is a schematic diagram of the structure of a vertical milling cutter for machining flange channels according to the present invention, after a partial cross-section of the main view.

[0018] Figure 6 This utility model Figure 5 A magnified structural diagram of B in the diagram.

[0019] Legend:

[0020] 1. Handle; 2. Cutting head; 3. Annular groove; 4. Mounting groove; 5. Insert rod; 6. First slot; 7. Moving rod; 8. Connecting rod; 9. Handle; 10. Moving base; 11. Fixed base; 12. Guide rod; 13. Spring; 14. Support ring; 15. First insert block; 16. First storage slot; 17. Second insert block; 18. Second storage slot; 19. Second slot; 20. Threaded rod. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0022] Reference Figure 1-6 This utility model provides an end mill for machining flange channels, including a shank 1 and a cutter head 2. The cutter head 2 is located at the upper end of the shank 1, and a rod 5 is fixedly connected to the lower end of the cutter head 2. The rod 5 has four end faces (front, back, left, and right) with first slots 6. The upper end face of the shank 1 has a mounting groove 4 for inserting the rod 5. The inside of the shank 1 has four first receiving grooves 16 communicating with the mounting grooves 4. Four moving rods 7 are slidably connected inside the shank 1, and each moving rod 7 has a first insert block 1 fixedly connected to one end near the rod 5. 5. The first storage slot 16 corresponds to the position of the first insertion block 15 and is used to accommodate the first insertion block 15. The first insertion block 15 is connected to the insertion rod 5 by being inserted into the first slot 6. The interior of each of the multiple moving rods 7 is equipped with a drive mechanism, and the drive mechanism is used to drive the moving rods 7 and the insertion block to move. The circumferential surface of the handle 1 is provided with an annular groove 3. The annular groove 3 is slidably connected to the moving seat 10. The moving seat 10 is connected to the drive mechanism. The interior of the moving seat 10 is equipped with a reinforcing component, and the reinforcing component cooperates with the moving seat 10 to fix the drive mechanism.

[0023] During operation, first adjust the reinforcing component, release the reinforcing component from locking the moving seat 10, and then move the moving seat 10 upward. Under the action of the drive mechanism, the moving rod 7 and the first insert block 15 will move away from the first slot 6 until the first insert block 15 is completely disengaged from the first slot 6 and enters the first storage slot 16. Then the cutter head 2 can be removed from the handle 1, thus completing the disassembly of the handle 1 and the cutter head 2, so that the cutter head 2 can be replaced later.

[0024] Furthermore, such as Figure 6 As shown, the first storage slot 16 has the same size as the first slot 6, and the positions of the multiple first storage slots 16 correspond one-to-one with the positions of the multiple first slots 6. During operation, the first insert 15, which moves out from inside the first slot 6, can enter the first storage slot 16, where it is temporarily stored. The depth of the first storage slot 16 is greater than the thickness of the first insert 15. After the first insert 15 is completely stored inside the first storage slot 16, it can prevent the subsequent insertion of the first insert 15 from affecting the insertion of the rod 5 from detaching from or inserting into the mounting slot 4.

[0025] Furthermore, such as Figure 3 As shown, the drive mechanism includes a connecting rod 8, a support ring 14, a fixed seat 11, a guide rod 12, and a spring 13. Multiple guide rods 12 are fixedly connected inside the annular groove 3. The multiple guide rods 12 all pass through the movable seat 10, and the movable seat 10 and the multiple guide rods 12 are slidably connected. Springs 13 are sleeved on the circumferential surface of the multiple guide rods 12. One end of the spring 13 is fixedly connected to the movable seat 10, and the other end of the spring 13 is fixedly connected to the tool holder 1. The upper end of the movable seat 10 is fixedly connected to the support ring 14, which is located inside the annular groove 3. Four fixed seats 11 are fixedly connected to the circumferential surface of the support ring 14. Connecting rods 8 are rotatably connected inside the multiple fixed seats 11. The multiple connecting rods 8 are located inside the multiple movable rods 7 and are rotatably connected to the multiple movable rods 7.

[0026] During operation, after the reinforcing component releases the lock on the movable seat 10, the movable seat 10 can be moved upward along the guide rod 12, while the spring 13 is compressed. The upward movement of the movable seat 10 will drive the support ring 14 and the fixed seat 11 to move. At this time, with the cooperation of the connecting rod 8, the movable rod 7 and the first insert block 15 will be moved away from the first slot 6 until the first insert block 15 is completely disengaged from the first slot 6 and stored in the first storage groove 16. Then the cutter head 2 can be removed from the tool holder 1. When installing a new cutter head 2, the corresponding insert rod 5 is inserted into the mounting groove 4, and the movable seat 10 can be released. At this time, under the action of the spring 13, the movable seat 10 can be driven to move downward and reset. Then, with the cooperation of the drive mechanism, the first insert block 15 is driven to be inserted into the corresponding first slot 6, thus completing the installation of the new cutter head 2. In this way, the end mill consisting of the cutter head 2 and the tool holder 1 can be easily and quickly disassembled and installed. By regularly replacing the cutter head 2, the end mill can be used to process the flange channel better.

[0027] Furthermore, such as Figure 6 As shown, the reinforcement assembly includes a handle 9, a threaded rod 20, a second insert 17, a second storage groove 18, and a second slot 19. The threaded rod 20 is threadedly connected to the inside of the movable base 10. The handle 9 is fixedly connected to the right end of the threaded rod 20, and the second insert 17 is fixedly connected to the left end of the threaded rod 20. The circumferential surface of the handle 1 has a second slot 19 for inserting the second insert 17. The second slot 19 is connected to the annular groove 3. The inside of the movable base 10 has a second storage groove 18 that can accommodate the second insert 17.

[0028] During operation, rotating the handle 9 can drive the threaded rod 20 to rotate and move along the movable seat 10, thereby driving the second insert 17 to move away from or towards the second slot 19. When the second insert 17 is inserted into the second slot 19, the movable seat 10 can be fixed, so that the movable seat 10 and the drive mechanism connected to the movable seat 10 can be more stably in that position, thereby making the cutter head 2 more stably connected to the cutter handle 1. When the second insert 17 is disengaged from the second slot 19, it is convenient to control the operation of the drive mechanism so that the cutter head 2 can be disassembled later.

[0029] Furthermore, the circumferential surface of the movable base 10 is provided with multiple arc-shaped grooves. During operation, the presence of these arc-shaped grooves facilitates manual adjustment of the position of the movable base 10 by the operator.

[0030] Furthermore, both the insert rod 5 and the mounting groove 4 have square end faces. During operation, the cutter head 2 can be stably connected to the cutter handle 1 through the cooperation of the insert rod 5, the mounting groove 4, the drive mechanism, and the reinforcing components. Thus, as the cutter handle 1 rotates, the cutter head 2 can also rotate stably, thereby enabling smooth processing of the flange channel.

[0031] Working principle:

[0032] In use, turning the handle 9 causes the threaded rod 20 to rotate and move along the moving seat 10, thereby moving the second insert 17 away from the second slot 19. When the second insert 17 is completely disengaged from the second slot 19 and enters the second storage groove 18, the moving seat 10 can be moved upward along the guide rod 12, while the spring 13 is compressed. The upward movement of the moving seat 10 will cause the support ring 14 and the fixed seat 11 to move. At this time, with the cooperation of the connecting rod 8, the moving rod 7 and the first insert 15 will be moved away from the first slot 6 until the first insert 15 is completely disengaged from the first slot 6 and stored in the first storage groove 16. Then the cutter head 2 can be removed from the cutter handle 1. When installing a new cutter head 2, the corresponding... Inserting the insert rod 5 into the mounting slot 4 releases the movable seat 10. At this time, under the action of the spring 13, the movable seat 10 can be driven to move down and reset. Then, with the cooperation of the drive mechanism, the first insert block 15 is driven to be inserted into the corresponding first slot 6, thus completing the installation of the new cutter head 2. To ensure the stability of the cutter head 2 installation, the handle 9 can be turned again to control the threaded rod 20 to rotate and move until the second insert block 17 is inserted into the second slot 19. At this time, under the action of the second insert block 17 and the second slot 19, the movable seat 10 can be locked again. In this way, with the cooperation of the movable seat 10 and the reinforcing component, the cutter head 2 can be more firmly connected to the cutter handle 1, so that the flange channel can be processed more smoothly in the future.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A milling cutter for machining flange channels, comprising a cutter holder (1) and a cutter head (2), characterized in that: The blade (2) is located at the upper end of the handle (1). The lower end of the blade (2) is fixedly connected to a rod (5). The four end faces of the rod (5) are provided with first slots (6). The upper end face of the handle (1) is provided with a mounting groove (4) for inserting the rod (5). The inside of the handle (1) is provided with four first storage slots (16) that communicate with the mounting grooves (4). The inside of the handle (1) is slidably connected with four moving rods (7). The ends of the multiple moving rods (7) near the rod (5) are fixedly connected with first insert blocks (15), and the first storage slots (16) are connected to the first rod (5). The position of the insertion block (15) corresponds to and is used to accommodate the first insertion block (15). The first insertion block (15) is connected to the insertion rod (5) by being inserted into the first slot (6). The interior of the multiple moving rods (7) is equipped with a drive mechanism, and the drive mechanism is used to drive the moving rods (7) and the insertion block to move. The circumferential surface of the handle (1) is provided with an annular groove (3). The annular groove (3) is slidably connected to the moving seat (10). The moving seat (10) is connected to the drive mechanism. The interior of the moving seat (10) is equipped with a reinforcing component, and the reinforcing component cooperates with the moving seat (10) to fix the drive mechanism.

2. The end mill for machining flange channels according to claim 1, characterized in that: The first storage slot (16) and the first slot (6) are the same size, and the multiple first storage slots (16) correspond one-to-one with the positions of the multiple first slots (6).

3. The end mill for machining flange channels according to claim 1, characterized in that: The driving mechanism includes a connecting rod (8), a support ring (14), a fixed seat (11), a guide rod (12), and a spring (13). Multiple guide rods (12) are fixedly connected inside the annular groove (3). Multiple guide rods (12) pass through the movable seat (10), and the movable seat (10) is slidably connected to multiple guide rods (12). Springs (13) are sleeved on the circumferential surface of multiple guide rods (12). One end of the spring (13) is fixedly connected to the movable seat (10), and the other end of the spring (13) is fixedly connected to the handle (1). The upper end of the movable seat (10) is fixedly connected to the support ring (14). The support ring (14) is located inside the annular groove (3). Four fixed seats (11) are fixedly connected to the circumferential surface of the support ring (14). Connecting rods (8) are rotatably connected inside multiple fixed seats (11). Multiple connecting rods (8) are located inside multiple movable rods (7) and are rotatably connected to multiple movable rods (7).

4. A milling cutter for machining flange channels according to claim 1, characterized in that: The reinforcement assembly includes a handle (9), a threaded rod (20), a second insert (17), a second storage slot (18), and a second slot (19). The movable base (10) is internally threaded with the threaded rod (20). The right end of the threaded rod (20) is fixedly connected to the handle (9), and the left end of the threaded rod (20) is fixedly connected to the second insert (17). The circumferential surface of the handle (1) is provided with a second slot (19) for inserting the second insert (17). The second slot (19) is interconnected with the annular groove (3). The interior of the movable base (10) is provided with a second storage slot (18) that can accommodate the second insert (17).

5. A milling cutter for machining flange channels according to claim 4, characterized in that: The circumferential surface of the movable seat (10) is provided with multiple arc-shaped grooves.

6. A milling cutter for machining flange channels according to claim 1, characterized in that: The end faces of the insertion rod (5) and the mounting groove (4) are both square.