Integral metal ceramic round nose milling cutter

Abstract

The utility model relates to the field of milling cutters, in particular to an integral metal ceramic round nose milling cutter, which is characterized in that a ceramic cutter head is clamped and mounted at the bottom of a connecting cutter handle in a limiting manner, guide grooves are symmetrically formed in the outer side of the ceramic cutter head, cutting edges are arranged at the bottoms of the guide grooves, and liquid outlet holes are formed in the middles of the guide grooves. According to the milling cutter, the overall high temperature resistance, the mechanical strength and the wear resistance of the milling cutter are improved through the ceramic cutter head, the guide groove and the guide groove are formed in the ceramic cutter head so that the function of guiding chip removal can be achieved through the arc-shaped design of the guide groove, chip accumulation is avoided, the heat dissipation efficiency of cooling liquid to the cutter head is improved through the arrangement of the liquid outlet and the drainage groove, and the service life of the milling cutter is prolonged. Abrasion of the milling cutter is reduced, and service life of the milling cutter is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of milling cutter technology, and in particular to an integral metal-ceramic round nose milling cutter. Background Technology

[0002] A milling cutter is a cutting tool with a cylindrical shape and one or more cutting edges on its circumference and bottom. It cuts the workpiece by rotating the cutting edges. Milling cutters can be divided into three types according to the shape of their working parts: face milling cutters, ball nose milling cutters, and ball end mills.

[0003] In existing technologies, some end mills have poor self-heating performance. During high-speed milling, the debris accumulated at the cutter head causes heat to build up. Relying solely on coolant is insufficient to guarantee cooling efficiency, resulting in significant wear on the cutter head at high temperatures. This greatly reduces the lifespan of the end mill, leading to frequent maintenance. Furthermore, the traditional disassembly and assembly process is cumbersome and cannot guarantee work efficiency. Therefore, there is an urgent need for a solid metal ceramic round nose end mill. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an integral metal-ceramic round nose end mill.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An integral metal-ceramic round nose end mill includes a connecting shank, on which a ceramic cutter head is fitted and secured at the bottom. The ceramic cutter head has symmetrically arranged guide grooves on its outer side, a cutting edge at the bottom of the guide groove, and a liquid outlet hole in the middle of the guide groove.

[0007] The upper part of the ceramic cutter head is provided with a connector to connect to the interface at the bottom of the cutter handle. The middle part of the connector is provided with a liquid inlet, which is connected to the liquid outlet through the liquid injection channel two provided in the middle of the ceramic cutter head.

[0008] The connector has snap-fit ​​blocks on both sides. The snap-fit ​​blocks are fitted into the L-shaped grooves opened on the inner wall of the interface. A rubber block is provided on one side of the inner wall of the L-shaped groove and is pressed and connected to the snap-fit ​​blocks.

[0009] In addition, a preferred structure is that a drainage groove is provided below the liquid outlet, and the drainage groove extends downward to the bottom of the ceramic cutter head.

[0010] Furthermore, in a preferred configuration, the guide groove is arc-shaped, and the upper part of the guide groove connects with the guide groove formed at the bottom of the connecting tool holder.

[0011] In addition, a preferred structure is that a connection port is provided on one side of the connecting handle, the connection port is connected to the liquid injection channel one in the middle of the connecting handle, a connector is provided below the liquid injection channel one, and the liquid injection channel one is connected to the liquid inlet to introduce coolant.

[0012] In addition, in a preferred structure, L-shaped grooves are symmetrically provided on both sides of the inner wall of the interface to mate with the snap-fit ​​block. The connector is inserted into the interface through the snap-fit ​​block, and the horizontal section of the L-shaped groove is used to lock the connector laterally.

[0013] Furthermore, in a preferred configuration, the bottom of the connecting handle is provided with a horizontal through-hole one, and the middle of the connector is provided with a horizontal through-hole two. When the connecting handle is connected to the ceramic cutter head, the first and second through-holes are joined together and connected by a locking pin.

[0014] The beneficial effects of this utility model are as follows:

[0015] I. In this utility model, the ceramic cutter head is used to improve the overall high temperature resistance, mechanical strength and wear resistance of the milling cutter. The ceramic cutter head is provided with guide grooves and guide slots to guide chip removal through its arc design, thereby avoiding chip accumulation. In addition, the coolant outlet and drainage groove are set to improve the heat dissipation efficiency of the coolant to the cutter head, reduce the wear of the milling cutter and extend the service life of the milling cutter.

[0016] Second, in this utility model, the ceramic cutter head is quickly connected to the connecting handle by setting the connector. The bottom of the connecting handle is provided with an L-shaped groove and a rubber block to improve the installation stability of the ceramic cutter head. In addition, the setting of the locking pin increases the convenience of later maintenance and effectively improves the service life of the cutter head. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of an integral metal-ceramic round nose end mill proposed in this utility model;

[0018] Figure 2 This is a cross-sectional view of the connector structure proposed in this utility model;

[0019] Figure 3 This is a cross-sectional view of the internal structure of the connecting knife holder proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the ceramic cutter head structure proposed in this utility model;

[0021] Figure 5 This is a schematic diagram of the connector docking structure proposed in this utility model;

[0022] Figure 6 This is a schematic diagram of the liquid injection channel structure proposed in this utility model.

[0023] In the diagram: 1. Connecting handle; 2. Ceramic cutter head; 21. Connector; 3. Guide groove; 4. Guide groove; 5. Liquid outlet; 51. Drainage groove; 6. Locking post; 61. Docking hole one; 7. Connection port; 71. Liquid injection channel one; 8. L-shaped groove; 9. Snap-fit ​​block; 10. Liquid inlet; 11. Docking hole two; 12. Rubber block; 13. Connecting interface; 14. Liquid injection channel two. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figure 1-6 An integral metal-ceramic round nose end mill includes a connecting shank 1, a ceramic cutter head 2 is fixedly mounted on the bottom of the connecting shank 1, guide grooves 4 are symmetrically opened on the outer side of the ceramic cutter head 2, a cutting edge is provided at the bottom of the guide grooves 4, and a liquid outlet hole 5 is provided in the middle of the guide grooves 4.

[0026] Furthermore, the upper part of the ceramic cutter head 2 is provided with a connector 21 to connect to the interface 13 at the bottom of the cutter handle 1. The middle part of the connector 21 is provided with a liquid inlet 10, which is connected to the liquid outlet 5 through the liquid injection channel 2 14.

[0027] Furthermore, the connector 21 is provided with snap-fit ​​blocks 9 on both sides. The snap-fit ​​blocks 9 are fitted and snap-fitted into the L-shaped groove 8 opened in the inner wall of the interface 13. A rubber block 12 is provided on one side of the inner wall of the L-shaped groove 8 and is pressed and connected to the snap-fit ​​blocks 9.

[0028] A flow channel 51 is provided below the liquid outlet 5, and the flow channel 51 extends downward to the bottom of the ceramic cutter head 2 so that the oil can better contact the cutting edge through the flow channel 51.

[0029] The guide groove 4 is arc-shaped to guide and remove chips, and the upper part of the guide groove 4 is connected to the guide groove 3 opened at the bottom of the connecting tool holder 1.

[0030] A connection port 7 is provided on one side of the connecting tool holder 1. The connection port 7 is connected to the liquid injection channel 71 in the middle of the connecting tool holder 1. A connector 21 is provided below the liquid injection channel 71, and the liquid injection channel 71 is connected to the liquid inlet 10 to introduce coolant. The coolant enters through the connection port 7 and is guided through the liquid injection channel 71, the liquid inlet 10, and the liquid injection channel 14, and finally exits through the liquid outlet 5.

[0031] The inner wall of the interface 13 is symmetrically provided with L-shaped grooves 8 on both sides to connect the snap-fit ​​block 9. The connector 21 is inserted into the interface 13 through the snap-fit ​​block 9. The horizontal section of the L-shaped groove 8 is used to lock the connector 21 laterally.

[0032] The bottom of the connecting handle 1 is horizontally provided with a first docking hole 61, and the middle of the connector 21 is horizontally provided with a second docking hole 11. When the connecting handle 1 is connected to the ceramic cutter head 2, the first docking hole 61 and the second docking hole 11 overlap and are connected by the locking pin 6.

[0033] When the snap-fit ​​block 9 is installed in the L-shaped groove 8, the first mating hole 61 and the second mating hole 11 are staggered. By twisting, the snap-fit ​​block 9 is driven to squeeze the rubber block 12 in the L-shaped groove 8 so that the first mating hole 61 and the second mating hole 11 overlap.

[0034] The locking post 6 has a smooth section in the middle to connect to the first docking hole 61 and the second docking hole 11. It also has a thread on one end of the locking post 6 and a thread on the inner wall of the first docking hole 61 facing the threaded end of the locking post 6 to connect to the locking post 6.

[0035] In this embodiment, the ceramic cutter head 2 has high thermal conductivity, wear resistance, and high temperature resistance. In actual processing, it can effectively withstand the high temperature generated by milling. The guide groove 4 and guide groove 3 provided on the ceramic cutter head 2 can effectively guide and remove waste chips. With the setting of the liquid outlet hole 5 and the flow channel 51, the coolant is effectively delivered to the cutting edge to achieve a high-efficiency heat dissipation effect. Compared with the traditional pouring type coolant heat dissipation, its heat dissipation effect is better and the contact is more sufficient.

[0036] Furthermore, the installation and maintenance efficiency of the ceramic cutter head 2 can be improved by setting the connector 21 and the interface 13, and the stability of the connector 21 after installation can be guaranteed by setting the rubber block 12.

[0037] Furthermore, when the connector 21 is inserted into the interface 13, the liquid injection channel 71 and the liquid inlet 10 are aligned and connected to introduce coolant into the ceramic cutter head 2.

[0038] It is worth noting that the ceramic cutter head 2 is specifically a metal ceramic.

[0039] It is worth noting that a seal is provided at the top connection between the connector 21 and the interface 13 to ensure airtightness and prevent leakage; the seal is provided to ensure normal operation of the equipment, which is a conventional setting in this technical field and will not be explained further.

[0040] It is worth noting that the liquid inlet 10 and the docking hole 2 11 are arranged in parallel.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A solid metal-ceramic round nose end mill, comprising a connecting shank (1), characterized in that, The bottom of the connecting handle (1) is fitted with a ceramic cutter head (2), and the outer side of the ceramic cutter head (2) is symmetrically provided with guide grooves (4). The bottom of the guide grooves (4) is provided with a cutting edge, and the middle of the guide grooves (4) is provided with a liquid outlet hole (5). The upper part of the ceramic cutter head (2) is provided with a connector (21) to connect to the interface (13) at the bottom of the cutter handle (1). The middle part of the connector (21) is provided with a liquid inlet (10). The liquid inlet (10) is connected to the liquid outlet (5) through the liquid injection channel (14) provided in the middle part of the ceramic cutter head (2). The connector (21) is provided with snap-fit ​​blocks (9) on both sides. The snap-fit ​​blocks (9) are fitted and snap-fitted into the L-shaped groove (8) opened in the inner wall of the interface (13). A rubber block (12) is provided on one side of the inner wall of the L-shaped groove (8) and is pressed and connected to the snap-fit ​​blocks (9).

2. The integral metal-ceramic round nose end mill according to claim 1, characterized in that, A flow channel (51) is provided below the liquid outlet (5), and the flow channel (51) extends downward to the bottom of the ceramic cutter head (2).

3. The integral metal-ceramic round nose end mill according to claim 1, characterized in that, The guide groove (4) is arc-shaped, and the upper part of the guide groove (4) is connected to the guide groove (3) opened at the bottom of the connecting tool holder (1).

4. The integral metal-ceramic round nose end mill according to claim 1, characterized in that, The connecting handle (1) has a connecting port (7) on one side. The connecting port (7) is connected to the liquid injection channel (71) in the middle of the connecting handle (1). A connector (21) is provided below the liquid injection channel (71), and the liquid injection channel (71) is connected to the liquid inlet (10) to introduce coolant.

5. A solid metal-ceramic round nose end mill according to claim 1, characterized in that, The inner wall of the interface (13) is symmetrically provided with L-shaped grooves (8) to connect to the snap-fit ​​block (9). The connector (21) is inserted into the interface (13) through the snap-fit ​​block (9). The horizontal section of the L-shaped groove (8) is used to lock the connector (21) laterally.

6. The integral metal-ceramic round nose end mill according to claim 1, characterized in that, The bottom of the connecting handle (1) is horizontally provided with a first docking hole (61), and the middle part of the connector (21) is horizontally provided with a second docking hole (11). When the connecting handle (1) is connected to the ceramic cutter head (2), the first docking hole (61) and the second docking hole (11) overlap and are connected by the locking pin (6).

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