Cutter for roughing high-hardness material

Abstract

The utility model relates to the technical field of cutters, in particular to a cutter for roughing high-hardness materials, which comprises a milling cutter main body, one end of the milling cutter main body is arranged in an inner cavity of a cutter handle, the diameter of a cutting edge on the milling cutter main body is gradually reduced towards the cutter handle to form an inverted cone shape, and the cutting edge comprises an edge head and an edge tail. The outer diameter of the cutting edge is gradually reduced from the edge head to the edge tail, and the edge head is positioned at one end of the cutting edge and is used for directly contacting and cutting a workpiece. The cutting edge of the milling cutter main body is arranged in the shape of the inverted cone, and the outer diameter of the connecting block is gradually reduced, so that the frictional resistance in the cutting process is effectively reduced; and the generation of cutting heat and cutting force is greatly reduced. The friction burden between the cutter and a workpiece is obviously reduced, and the stability of the cutting process is improved. The stability of the cutter in the cutting process is enhanced, machining errors caused by vibration and cutting force fluctuation are reduced, and the milling cutter body is suitable for machining high-hardness materials.

Description

Technical Field

[0001] The utility model relates to the technical field of cutters, in particular to a cutter for roughing high-hardness materials. Background Art

[0002] A milling cutter is a rotary tool with one or more teeth used for milling. Milling cutters are mainly used to process planes, steps, grooves, forming surfaces and cut off workpieces on milling machines.

[0003] In the field of roughing of high-hardness materials, traditional cutting tools often face challenges such as large cutting forces, high cutting heat, and rapid tool wear, which seriously affect processing efficiency and workpiece quality. Existing tool designs often find it difficult to reduce cutting resistance while ensuring sufficient stability and durability, resulting in frequent tool replacement during processing, increasing production costs and downtime. In addition, the traditional milling cutter fixing method lacks flexibility and cannot adjust the milling cutter length according to the needs of different processing tasks. Instead, the processing depth is adjusted by adjusting the overall position of the tool. In the existing design, if the milling cutter protrudes too long from the shank, a deeper processing depth will be obtained. However, a milling cutter that is too long is prone to vibration during processing, making the milling cutter easily damaged. If the milling cutter length is too short, the required processing depth cannot be achieved. Utility Model Content

[0004] The purpose of the utility model is to provide a tool for roughing high-hardness materials to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A tool for roughing high-hardness materials includes a milling cutter body, one end of which is arranged in the inner cavity of a shank, and the diameter of the cutting edge on the milling cutter body gradually decreases toward the shank to form an inverted cone shape. Specifically, the cutting edge includes a cutting head and a cutting tail, and the outer diameter of the cutting edge gradually decreases from the cutting head to the cutting tail. The cutting head is located at one end of the cutting edge and is used to directly contact and cut a workpiece, and the cutting tail is located at the end of the cutting edge close to the shank.

[0007] Preferably, the connection portion between the blade tail and the milling cutter body adopts a gradual transition design, that is, the outer diameter of the blade tail gradually decreases and smoothly transitions to the diameter of the milling cutter body.

[0008] Preferably, the cutting edge further comprises a cutting surface, the cutting surface is connected to the main body of the cutting edge and is designed to have an arc angle.

[0009] Preferably, the surface of the cutting edge is coated with an ALTIN ​​nano coating, which is directly attached to the base material of the cutting edge.

[0010] Preferably, the arc angle of the cutting surface is designed to be between 5° and 15°, and the cutting edge also includes a supporting surface, which is the main supporting part of the cutting edge and is used to support the overall strength and stability of the cutting edge.

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

[0012] 1. In the utility model, by setting the cutting edge of the milling cutter body to an inverted cone shape and by designing the outer diameter of the connecting block to be gradually reduced, the friction resistance in the cutting process is effectively reduced, thereby greatly reducing the generation of cutting heat and cutting force. The friction burden between the tool and the workpiece is significantly reduced, and the stability of the cutting process is improved. The stability of the tool in the cutting process is enhanced, and the processing error caused by vibration and cutting force fluctuation is reduced, making the milling cutter body suitable for processing high-hardness materials;

[0013] 2. In the utility model, an adjustable milling cutter fixing device is combined inside the tool handle, and the milling cutter can quickly adjust its length according to different processing requirements, so that the processing depth and the stability of the milling cutter can be balanced. At the same time, this design is also convenient for quickly replacing a new cutter after the cutter is worn, ensuring the continuity and efficiency of the processing process. By reducing the time of stopping to replace the cutter, the overall production efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a cross-sectional view of the connection between the milling cutter body and the handle of the utility model;

[0016] Figure 3 For this utility model Figure 1 Side view of the local structure of the middle milling cutter body;

[0017] Figure 4 For this utility model Figure 3 The overall structural plan of the middle cutting edge;

[0018] Figure 5 For this utility model Figure 2 The overall structural diagram of the middle fixed sleeve;

[0019] Figure 6 For this utility model Figure 5 The overall structural section of the middle sleeve;

[0020] In the figure: 1. milling cutter body; 11. fixing sleeve; 111. sleeve; 112. fixing seat; 113. connecting block; 114. magnetic ring; 115. spring; 12. positioning hole; 13. cutting edge; 131. blade head; 132. blade tail; 133. cutting surface; 134. supporting surface; 2. tool handle; 21. limiting groove; 22. electromagnetic ring. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] See also Figure 1-6 , the utility model provides a technical solution:

[0023] A tool for roughing high-hardness materials includes a milling cutter body 1, one end of the milling cutter body 1 is arranged in the inner cavity of a shank 2, a fixing sleeve 11 is arranged on the outer side of the bottom of the milling cutter body 1, a limiting groove 21 is arranged on the inner wall of the shank 2, and at least three electromagnetic coils 22 are arranged on the inner wall of the limiting groove 21. The fixing sleeve 11 is located in the inner cavity of the limiting groove 21. The diameter of the cutting edge 13 on the milling cutter body 1 gradually decreases toward the shank 2 to form an inverted cone shape. Specifically, the cutting edge 13 includes a blade head 131 and a blade tail 132. The outer diameter of the cutting edge 13 gradually decreases from the blade head 131 to the blade tail 132. The blade head 131 is located at one end of the cutting edge 13 for directly contacting and cutting a workpiece, and the blade tail 132 is located at the end of the cutting edge 13 close to the shank 2.

[0024] In this embodiment, please refer to Figure 3 The connection part between the blade tail 132 and the milling cutter body 1 adopts a gradual transition design, that is, the outer diameter of the blade tail 132 gradually decreases and smoothly transitions to the diameter of the milling cutter body 1. In this embodiment, this design not only enhances the connection strength between the cutting edge 13 and the milling cutter body 1, but also effectively suppresses the vibration generated during the cutting process, further improving the stability and accuracy of the cutting process.

[0025] In this embodiment, please refer to Figure 2 , Figure 5 , Figure 6The inner wall of the fixed sleeve 11 is provided with sleeves 111 of the same number as the electromagnetic coils 22, one end of the sleeve 111 is provided with a fixing seat 112, one side of the fixing seat 112 is provided with a spring 115, and the inner cavity at the other end of the sleeve 111 is provided with a connecting block 113, one end of the connecting block 113 is provided with a magnetic attraction ring 114 corresponding to the electromagnetic coil 22, and one end of the spring 115 is in contact with the magnetic attraction ring 114. In this embodiment, when the electromagnetic coil 22 is energized, the magnetic force generated will attract the magnetic attraction ring 114 to move backward, and the connecting block 113 is driven to move backward through the magnetic attraction ring 114, and the spring 115 is squeezed to deform it. When the electromagnetic coil 22 is powered off, it no longer attracts the magnetic attraction ring 114, so that the spring 115 loses pressure and rebounds, and lifts the connecting block 113 to return it to its original position.

[0026] In this embodiment, please refer to Figure 4 The cutting edge 13 also includes a cutting surface 133, which is connected to the main body of the cutting edge 13 and is designed as an arc angle. The angle of the arc angle is between 5° and 15°. The cutting edge 13 also includes a supporting surface 134, which is the main supporting part of the cutting edge 13 and is used to support the overall strength and stability of the cutting edge 13. In this embodiment, by designing the cutting surface 133 as an arc angle, the cutting force is effectively dispersed, and the stress concentration phenomenon in the cutting process is reduced, thereby significantly enhancing the cutting ability of the tool, helping to reduce the contact area between the tool and the workpiece during cutting, thereby reducing the cutting force; and the arc angle reduces the friction and resistance in the cutting process through its smooth transition design, making the cutting process smoother.

[0027] In this embodiment, please refer to Figure 3 The surface of the cutting edge 13 is coated with an ALTIN ​​nano coating, which is directly attached to the base material of the cutting edge 13. In this embodiment, the ALTIN ​​nano coating forms a solid protective layer on the surface of the tool with its excellent hardness and wear resistance. This coating can effectively resist the friction and wear with the workpiece material during the cutting process, reduce the passivation rate of the cutting edge, thereby maintaining the sharpness and cutting efficiency of the tool and significantly extending the wear life of the tool.

[0028] In this embodiment, please refer to Figure 2, multiple groups of positioning holes 12 are opened on the outer side of the bottom of the milling cutter body 1, and the number of each group of positioning holes 12 is the same as the number of the fixing sleeve 11 and is adapted to one end of the connecting block 113. In this embodiment, when the connecting block 113 moves forward, it enters the inner cavity of the positioning hole 12, so that the milling cutter body 1 is fixed in the fixing sleeve 11, and the fixing sleeve 11 is fixed in the inner cavity of the limiting groove 21, thereby fixing the position of the milling cutter body 1. When the connecting block 113 moves backward, after being separated from the inner cavity of the positioning hole 12, the connection between the milling cutter body 1 and the fixing sleeve 11 is disconnected, so that the position of the milling cutter body 1 can be adjusted, and after the connecting block 113 is connected to any group of positioning holes 12, the processing depth of the milling cutter body 1 can be adjusted.

[0029] In this embodiment, please refer to Figure 2 , Figure 6 The contact surface of the positioning hole 12 and the connecting block 113 is designed as a bevel matching structure, that is, the inner wall of the positioning hole 12 and one end of the connecting block 113 are provided with matching bevels. In this embodiment, the contact surface design of the positioning hole 12 and the connecting block 113 introduces a bevel matching structure. The design of the surface matching structure enables the connecting block 113 to enter and exit the positioning hole 12 more smoothly, and improves the connection stability between the connecting block 113 and the positioning hole 12, preventing loosening or falling off due to vibration or impact.

[0030] Working principle of this utility model:

[0031] Step 1: Since the outer diameter of the cutting edge 13 is gradually tapered from the blade head 131 to the blade tail 132, that is, the closer to the milling cutter body 1, the thinner the outer diameter is, the contact area between the tool and the workpiece gradually decreases as the cutting depth increases during the cutting process, thereby reducing the friction resistance during cutting. The reduced friction resistance helps to reduce the generation of cutting heat and cutting force, which is particularly important for processing high-hardness materials because high-hardness materials often have higher cutting temperatures and cutting forces. At the same time, the effective diameter of the tool gradually decreases as the cutting depth increases, making the tool more stable during the cutting process. The stable cutting process helps to reduce vibration and fluctuations in cutting force, thereby improving processing accuracy and tool life.

[0032] Step 2, by energizing the limit groove 21, when the limit groove 21 is energized, suction is generated. Since the corresponding surfaces of the limit groove 21 and the magnetic ring 114 attract each other, when the limit groove 21 is energized, the magnetic ring 114 is attracted to move backward, and the magnetic ring 114 moves backward to squeeze the spring 115 to deform it. When the magnetic ring 114 moves backward, it drives the connecting block 113 to move backward and out of the inner cavity of the positioning hole 12. At this time, the connection between the milling cutter body 1 and the fixed sleeve 11 is disconnected, and the position of the milling cutter body 1 can be adjusted. At this time, the milling cutter body 1 can be adjusted according to the processing depth and the position of the milling cutter body 1. Since a number of Positioning hole 12, when the sleeve 111 is moved to the positioning hole 12 at any height and the connecting block 113 is made to correspond to each other at 12, the power supply to the limiting groove 21 is stopped at this time, so that the limiting groove 21 no longer attracts the magnetic ring 114, so that the spring 115 loses pressure and rebounds, thereby lifting the connecting block 113 and making it re-enter the inner cavity of the positioning hole 12, so that the milling cutter body 1 and the fixing sleeve 11 are re-fixed together, the position of the milling cutter body 1 is fixed, and the processing depth of the milling cutter body 1 is fixed, so that the adjustment of the processing depth can be completed quickly, and at the same time, when the connection between the milling cutter body 1 and the fixing sleeve 11 is disconnected, the milling cutter body 1 can be removed to complete the disassembly.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. The utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A tool for roughing high-hardness materials, comprising a milling cutter body (1), one end of the milling cutter body (1) being arranged in an inner cavity of a tool handle (2), characterized in that: The diameter of the cutting edge (13) on the milling cutter body (1) gradually decreases toward the shank (2) to form an inverted cone shape. The cutting edge (13) comprises a cutting head (131) and a cutting tail (132). The outer diameter of the cutting edge (13) gradually decreases from the cutting head (131) to the cutting tail (132). The cutting head (131) is located at one end of the cutting edge (13) and is used to directly contact and cut a workpiece. The cutting tail (132) is located at one end of the cutting edge (13) close to the shank (2).

2. A tool for roughing high-hardness materials according to claim 1, characterized in that: The connection portion between the blade tail (132) and the milling cutter body (1) adopts a gradual transition design, that is, the outer diameter of the blade tail (132) gradually decreases and smoothly transitions to the diameter of the milling cutter body (1).

3. A tool for roughing high-hardness materials according to claim 1, characterized in that: The cutting edge (13) further comprises a cutting surface (133), wherein the cutting surface (133) is connected to the main body of the cutting edge (13) and is designed to have a circular arc angle.

4. A tool for roughing high-hardness materials according to claim 1, characterized in that: The surface of the cutting edge (13) is coated with an ALTIN ​​nano coating, which is directly attached to the base material of the cutting edge (13).

5. The tool for roughing high-hardness materials according to claim 3, characterized in that: The arc angle of the cutting surface (133) is designed to be between 5° and 15°. The cutting edge (13) further comprises a supporting surface (134). The supporting surface (134) is the main supporting part of the cutting edge (13) and is used to support the overall strength and stability of the cutting edge (13).

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