Hard alloy cutting tool special for machining ceramic materials

Abstract

The utility model relates to the technical field of cutting tools, and discloses a special hard alloy cutting tool for processing ceramic materials, which comprises a tool bit, a tool neck and a tool handle, the tool bit is fixedly connected with the tool neck, the tool neck is detachably connected with the tool handle, and a disc is sleeved on the tool neck; a mounting hole is formed in the left end of the cutter handle, four locking grooves are formed in the periphery of the mounting hole, the locking grooves are communicated with the mounting hole, self-locking blocks and inserting blocks are arranged in the locking grooves, the adjacent sides of the self-locking blocks and the inserting blocks are inclined planes, and the self-locking blocks and the inserting blocks are arranged in the inclined planes. The self-locking block is located on the side close to the mounting hole, the inserting block is located on the side away from the mounting hole, and the left end of the inserting block extends out of the locking groove. Clamping and fixing can be achieved by inserting the cutter neck into the mounting hole, disassembly and assembly are convenient, replacement is easy, and stability is high.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, and in particular to a cemented carbide cutting tool specifically designed for machining ceramic materials. Background Technology

[0002] Ceramic materials possess excellent properties such as high strength, high hardness, low density, low coefficient of expansion, as well as wear resistance, corrosion resistance, heat insulation, and good chemical stability. They have become a new type of engineering material widely used in aerospace, petrochemical, instrumentation, machinery manufacturing, and nuclear industries.

[0003] However, due to the extremely high hardness of ceramics, the drill bit wears out severely during drilling and needs to be replaced frequently. Existing drill bits are all integrally molded, making overall replacement expensive. In addition, the clamping and disassembly of ordinary drill bits is cumbersome and the replacement efficiency is low.

[0004] Therefore, those skilled in the art urgently need to develop a cemented carbide cutting tool specifically for machining ceramic materials. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a cemented carbide cutting tool specifically designed for machining ceramic materials.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a cemented carbide cutting tool specifically for machining ceramic materials, comprising a cutting head, a cutting neck, and a tool holder. The cutting head is fixedly connected to the cutting neck, and the cutting neck and the tool holder are detachably connected. A disc is fitted onto the cutting neck. A mounting hole is provided at the left end of the tool holder, and locking grooves are provided around the mounting hole. The locking grooves are connected to the mounting hole. There are four locking grooves, which are evenly distributed in a ring. Each locking groove contains a self-locking block and a plug. The adjacent sides of the self-locking block and the plug are both inclined surfaces. The self-locking block is located on the side closer to the mounting hole, and the plug is located on the side farther from the mounting hole. The left end of the plug extends out of the locking groove.

[0007] Preferably, a first limiting groove is provided on the side of the locking groove away from the mounting hole, and a first stop is provided inside the first limiting groove. The first stop is connected to the insert block. A second limiting groove is provided at the right end of the locking groove, and a second stop is provided inside the second limiting groove. The second stop is connected to the self-locking block.

[0008] Preferably, the end of the self-locking block near the mounting hole is a rough surface, and the end of the locking groove near the mounting hole is provided with a fixing block. The fixing block is located at the left end of the self-locking block and is fixedly connected to the tool handle.

[0009] Preferably, a protrusion is provided on the right side shaft of the blade neck, and a mounting groove is provided around the mounting hole, the mounting groove being located between the locking grooves.

[0010] Preferably, the cutter head has a chip removal groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In this utility model, when the blade neck is inserted into the mounting hole, the disc squeezes the insert block, and the insert block pushes the self-locking block towards one end of the mounting hole through the inclined surface, thereby clamping and fixing the blade neck. When disassembling, it can be pulled out in the opposite direction, which is quick, convenient and efficient, easy to disassemble and simple to replace.

[0013] Second, in this utility model, when the blade neck and the handle are connected, the protrusion on the blade neck is inserted into the mounting groove, thereby preventing the blade neck from slipping in the mounting hole and improving the stability of the connection.

[0014] Third, in this utility model, the horizontal movement of the insert block is limited to prevent it from sliding out of the locking groove; the vertical movement of the self-locking block is limited to prevent it from sliding out of the locking groove; the fixed block abuts against the left end of the self-locking block, thereby preventing the self-locking block from moving in the left and right directions, thus making the overall device more stable and secure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the blade head and blade neck described in this utility model;

[0016] Figure 2 This is a front view of the cross-sectional structure of the knife handle described in this utility model;

[0017] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle;

[0018] Figure 4 This is a side view of the knife handle described in this utility model.

[0019] In the diagram: 1-Cutter head; 11-Chip removal groove; 2-Cutter neck; 21-Disc; 22-Protrusion; 3-Cutter handle; 31-Mounting hole; 32-Locking groove; 33-Self-locking block; 34-Insertion block; 35-Fixing block; 36-First stop block; 37-First limit groove; 38-Second stop block; 39-Second limit groove; 4-Mounting groove. Detailed Implementation

[0020] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0021] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] Example 1

[0024] Please see Figures 1-4 This utility model provides a technical solution: a cemented carbide cutting tool specifically for machining ceramic materials, including a tool head 1, a tool neck 2, and a tool holder 3. The tool head 1 is fixedly connected to the tool neck 2, and the tool neck 2 and the tool holder 3 are detachably connected. A disc 21 is fitted on the tool neck 2. A mounting hole 31 is opened at the left end of the tool holder 3. Locking grooves 32 are opened around the mounting hole 31 and are connected to the mounting hole 31. There are four locking grooves 32, which are evenly distributed in a ring. Each locking groove 32 is provided with a self-locking block 33 and an insert block 34. The adjacent sides of the self-locking block 33 and the insert block 34 are inclined surfaces. The self-locking block 33 is located on the side closer to the mounting hole 31, and the insert block 34 is located on the side away from the mounting hole 31. The left end of the insert block 34 extends out of the locking groove 32. A chip removal groove 11 is opened on the tool head 1.

[0025] When the blade neck 2 is inserted into the mounting hole 31, the disc 21 presses the insert block 34, and the insert block 34 pushes the self-locking block 33 towards one end of the mounting hole 31 through the inclined surface, so that the self-locking block 33 clamps and fixes the blade neck 2. When disassembling, it can be pulled out in the opposite direction, which is quick, convenient and efficient.

[0026] Furthermore, a protrusion 22 is provided on the right side shaft of the blade neck 2, and a mounting groove 4 is provided around the mounting hole 31, with the mounting groove 4 located between the locking grooves 32.

[0027] When the blade neck 2 and the handle 3 are connected, the protrusion 22 on the blade neck 2 is inserted into the mounting groove 4, thereby preventing the blade neck 2 from slipping in the mounting hole 31 and improving the stability of the connection.

[0028] Example 2

[0029] Please see Figures 2-4 Based on Embodiment 1, a first limiting groove 37 is provided on the side of the locking groove 32 away from the mounting hole 31. A first stop block 36 is provided inside the first limiting groove 37. The first stop block 36 is connected to the insert block 34. A second limiting groove 39 is provided at the right end of the locking groove 32. A second stop block 38 is provided inside the second limiting groove 39. The second stop block 38 is connected to the self-locking block 33. The end of the self-locking block 33 near the mounting hole 31 is rough. A fixing block 35 is provided at the end of the locking groove 32 near the mounting hole 31. The fixing block 35 is located at the left end of the self-locking block 33 and is fixedly connected to the handle 3.

[0030] The first stop 36 slides inside the first limiting groove 37, thereby limiting the horizontal movement of the insert 34 and preventing it from sliding out of the locking groove 32; the second stop 38 slides inside the second limiting groove 39, thereby limiting the vertical movement of the self-locking block 33 and preventing it from sliding out of the locking groove 32; the fixing block 35 abuts against the left end of the self-locking block 33, thereby preventing the self-locking block 33 from moving in the left and right directions, thus making the overall device more stable and secure.

[0031] The working principle of this utility model is as follows: When using this utility model, simply insert the blade neck 2 into the mounting hole 31, and the disc 21 presses the insert block 34. The insert block 34 pushes the self-locking block 33 towards one end of the mounting hole 31 through the inclined surface, thereby making the self-locking block 33 clamp and fix the blade neck 2. When disassembling, simply pull it out in the opposite direction.

[0032] 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 cemented carbide cutting tool specifically designed for machining ceramic materials, characterized in that: It includes a blade head (1), a blade neck (2) and a handle (3). The blade head (1) is fixedly connected to the blade neck (2), and the blade neck (2) and the handle (3) are detachably connected. A disc (21) is fitted on the blade neck (2). The left end of the handle (3) is provided with a mounting hole (31), and a locking groove (32) is provided around the mounting hole (31). The locking groove (32) is connected to the mounting hole (31). There are four locking grooves (32) and they are evenly distributed in a ring. Each locking groove (32) is provided with a self-locking block (33) and a plug (34). The adjacent sides of the self-locking block (33) and the plug (34) are both inclined surfaces. The self-locking block (33) is located on the side closer to the mounting hole (31), and the plug (34) is located on the side away from the mounting hole (31). The left end of the plug (34) extends out of the locking groove (32).

2. The cemented carbide cutting tool specifically for machining ceramic materials according to claim 1, characterized in that: The locking groove (32) has a first limiting groove (37) on the side away from the mounting hole (31). The first limiting groove (37) has a first stop (36) inside. The first stop (36) is connected to the insert block (34). The right end of the locking groove (32) has a second limiting groove (39). The second limiting groove (39) has a second stop (38) inside. The second stop (38) is connected to the self-locking block (33).

3. A cemented carbide cutting tool specifically for machining ceramic materials according to claim 2, characterized in that: The self-locking block (33) has a rough surface at one end near the mounting hole (31), and the locking groove (32) has a fixing block (35) at one end near the mounting hole (31). The fixing block (35) is located at the left end of the self-locking block (33) and is fixedly connected to the handle (3).

4. A cemented carbide cutting tool specifically for machining ceramic materials according to claim 1, characterized in that: The blade neck (2) has a protrusion (22) on the right side shaft, and the mounting hole (31) has a mounting groove (4) around it, which is located between the locking groove (32).

5. A cemented carbide cutting tool specifically for machining ceramic materials according to claim 1, characterized in that: The cutter head (1) is provided with a chip removal groove (11).

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