Annular PCD groove milling cutter for processing oxygen-free copper
By adopting a high-hardness PCD slot milling cutter body and an air jet structure, the problems of rapid wear and high cutting temperature of cemented carbide tools have been solved, enabling efficient machining and high-quality surface treatment of oxygen-free copper annular grooves.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU ZHONGTIAN PRECISION TOOLS CO LTD
- Filing Date
- 2025-04-21
- Publication Date
- 2026-05-15
AI Technical Summary
Existing carbide cutting tools have low hardness, wear quickly, and have high cutting temperatures when machining oxygen-free copper annular grooves, which affects machining accuracy and quality, and frequent tool replacements increase costs.
It adopts a PCD slot milling cutter body, which has extremely high hardness and wear resistance, and good thermal conductivity. Combined with six air jets for chip removal, it ensures rapid heat dissipation and effective chip removal.
It significantly improves tool life, ensures machining accuracy and quality, reduces cutting temperature, reduces thermal deformation, and improves machining efficiency and chip removal convenience.
Smart Images
Figure CN224238342U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of machining technology, and in particular to a milling cutter for machining oxygen-free copper annular PCD slots. Background Technology
[0002] When machining annular grooves in oxygen-free copper, slot milling cutters are typically used for cutting.
[0003] In the current technology, carbide tools are usually used when machining annular grooves of oxygen-free copper. However, carbide tools have many shortcomings. Their hardness is relatively low, and they wear out quickly when cutting oxygen-free copper at high speeds, making it difficult to guarantee machining accuracy. Frequent tool replacements are required, which increases machining costs and downtime. Moreover, carbide tools tend to generate high cutting temperatures during the cutting process, which not only further accelerates tool wear but may also cause thermal deformation of the oxygen-free copper material, affecting machining quality.
[0004] Therefore, this application proposes a milling cutter for machining oxygen-free copper ring-shaped PCD slots to solve the above-mentioned problems. Utility Model Content
[0005] In view of the shortcomings of the prior art, this utility model provides a milling cutter for machining annular PCD grooves of oxygen-free copper, which overcomes the shortcomings of the prior art and aims to solve the problems in the background art.
[0006] To achieve the above objectives, this application adopts the following technical solution: a milling cutter for machining oxygen-free copper ring PCD grooves, including a cutter holder, a tube body fixed to the bottom of the cutter holder, a cutting groove opening at the bottom of the tube body, a PCD groove milling cutter body fixedly installed on the inner wall of the cutting groove opening, and a through groove opening connecting the cutter holder and the inner wall of the tube body.
[0007] In a preferred embodiment, there are two cutting slots and two PCD slot milling cutter bodies, and the two cutting slots and two PCD slot milling cutter bodies are symmetrically arranged at the bottom of the tube.
[0008] By adopting the above technical solution, the PCD slot milling cutter body has extremely high hardness and wear resistance, second only to natural diamond. It can effectively resist the cutting wear of oxygen-free copper materials, significantly improve the tool life, and at the same time, the PCD slot milling cutter body has good thermal conductivity, which can quickly conduct cutting heat away during the cutting process, reduce the temperature of the cutting area, reduce the thermal deformation of oxygen-free copper materials, and thus ensure machining accuracy and surface quality.
[0009] In a preferred embodiment, the axial rake angle of the PCD slot milling cutter body is 10°.
[0010] By adopting the above technical solution, the machining of the annular groove can be completed in one pass, improving machining efficiency. Furthermore, by reasonably setting the angle of the PCD groove milling cutter body, the PCD groove milling cutter body can have good cutting performance and chip removal performance during the cutting process, further improving machining quality and efficiency.
[0011] In a preferred embodiment, a connecting pipe is fixedly installed on the outer edge of the handle, and the connecting pipe communicates with the inner wall of the through groove, and an air jet pipe is fixedly installed on the inner wall of the through groove.
[0012] By adopting the above technical solution, the connecting pipe can be connected to the air pipe, and the gas can be discharged to the inner wall of the channel, and then discharged into the inside of the pipe through the jet pipe, which can be used to blow away the debris adhering to the inside of the pipe from the inner wall of the pipe.
[0013] In a preferred embodiment, the number of jet pipes is six, and the six jet pipes are arranged circumferentially on the inner wall of the through groove, with the ends of the six jet pipes away from the through groove arranged at an angle inside the pipe body.
[0014] By adopting the above technical solution, the gas inside the channel can be discharged from different angles to the inner wall of the pipe through six jet pipes to clean the debris on the inner wall of the pipe.
[0015] In a preferred embodiment, the handle is made of alloy material.
[0016] By adopting the above technical solutions, the sturdiness of the knife handle can be guaranteed, ensuring that it will not be easily damaged after long-term use, thereby guaranteeing its durability.
[0017] The beneficial effects of this application are:
[0018] This is a ring-shaped PCD slot end mill for machining oxygen-free copper. The PCD slot end mill body has extremely high hardness and wear resistance, second only to natural diamond, which can effectively resist the cutting wear of oxygen-free copper materials and significantly improve the service life of the PCD slot end mill body. At the same time, the PCD slot end mill body has good thermal conductivity, which can quickly conduct cutting heat away during the cutting process, reduce the temperature of the cutting area, reduce the thermal deformation of oxygen-free copper materials, thereby ensuring machining accuracy and surface quality, and eliminating the need for frequent replacement.
[0019] This type of annular PCD groove milling cutter for machining oxygen-free copper uses an air pipe inserted into the inner wall of a connecting pipe to discharge gas to the inner wall of the groove, and then through six air jet pipes to the inner wall of the tube body. This can be used to blow away debris adhering to the inner wall of the tube body, thereby improving the convenience of debris cleaning. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this application;
[0021] Figure 2 This is a cross-sectional structural diagram of this application;
[0022] Figure 3 This is a side view structural diagram of this application;
[0023] Figure 4 This is a schematic diagram of the structure from below in this application.
[0024] The following are the labels in the diagram: 1. Tool holder; 2. Tube body; 3. Cutting groove; 4. PCD slot milling cutter body; 5. Connecting pipe; 6. Through groove; 7. Air jet pipe. Detailed Implementation
[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.
[0026] Reference Figure 1-4 A milling cutter for machining oxygen-free copper ring-shaped PCD grooves includes a cutter holder 1, a tube body 2 fixed to the bottom of the cutter holder 1, a cutting groove 3 opened at the bottom of the tube body 2, a PCD groove milling cutter body 4 fixedly installed on the inner wall of the cutting groove 3, and a through groove 6 connecting the inner walls of the cutter holder 1 and the tube body 2.
[0027] See Figure 1 - Figure 4 The number of cutting grooves 3 and PCD slot milling cutter bodies 4 are both two, and the two cutting grooves 3 and PCD slot milling cutter bodies 4 are symmetrically arranged at the bottom of the tube body 2. This gives the PCD slot milling cutter body 4 extremely high hardness and wear resistance, second only to natural diamond. It can effectively resist the cutting wear of oxygen-free copper materials and significantly improve the tool life. At the same time, the PCD slot milling cutter body 4 has good thermal conductivity, which can quickly conduct cutting heat away during the cutting process, reduce the temperature of the cutting area, reduce the thermal deformation of oxygen-free copper materials, and thus ensure machining accuracy and surface quality.
[0028] See Figure 1 , Figure 2 and Figure 4 The PCD slot milling cutter body 4 has an axial rake angle of 10°, which enables the machining of the annular groove to be completed in one pass, improving machining efficiency. Furthermore, the reasonable setting of the angle of the PCD slot milling cutter body 4 can enable it to have good cutting performance and chip removal performance during the cutting process, further improving machining quality and efficiency.
[0029] See Figure 1 and Figure 2A connecting pipe 5 is fixedly installed on the outer edge of the handle 1, and the connecting pipe 5 communicates with the inner wall of the through groove 6. An air jet pipe 7 is fixedly installed on the inner wall of the through groove 6, so that the connecting pipe 5 can be connected to the air pipe, and the gas can be discharged to the inner wall of the through groove 6, and then discharged to the inside of the tube body 2 through the air jet pipe 7. It can be used to blow away the debris adhering to the inside of the tube body 2 from the inner wall of the tube body 2.
[0030] See Figure 2 There are six jet pipes 7, and the six jet pipes 7 are arranged in a circle on the inner wall of the through groove 6. The end of the six jet pipes 7 away from the through groove 6 is arranged in an inclined position inside the pipe body 2, so that the gas inside the through groove 6 can be discharged to the inner wall of the pipe body 2 from different angles through the six jet pipes 7, for cleaning the debris on the inner wall of the pipe body 2.
[0031] See Figure 1 and Figure 2 The handle 1 is made of alloy material, which ensures the sturdiness of the handle 1 and prevents it from being easily damaged after long-term use, thus ensuring its durability.
[0032] Working principle: When using this device, first move the tube body 2 above the part, and move the PCD slot milling cutter body 4 against the top of the part. This allows the annular groove of the part to be machined in one pass, improving machining efficiency. After machining, the air pipe can be inserted into the inner wall of the connecting pipe 5 to discharge the gas to the inner wall of the through groove 6, and then through the six air jet pipes 7 to the inner wall of the tube body 2. This can be used to blow away the debris adhering to the inside of the tube body 2 from the inner wall of the tube body 2.
[0033] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," 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 this utility model and 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 this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0035] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.
Claims
1. A milling cutter for machining annular PCD grooves in oxygen-free copper, comprising a tool holder (1), characterized in that, The bottom of the tool holder (1) is fixed with a tube body (2), and the bottom of the tube body (2) is provided with a cutting groove (3). The inner wall of the cutting groove (3) is fixedly installed with a PCD slot milling cutter body (4). The inner walls of the tool holder (1) and the tube body (2) are connected by a through groove (6).
2. The milling cutter for machining annular PCD slots in oxygen-free copper according to claim 1, characterized in that, The number of cutting slots (3) and PCD slot milling cutter bodies (4) are both two, and the two cutting slots (3) and PCD slot milling cutter bodies (4) are symmetrically arranged at the bottom of the tube body (2).
3. The milling cutter for machining annular PCD slots in oxygen-free copper according to claim 1, characterized in that, The axial rake angle of the PCD slot milling cutter body (4) is 10°.
4. The milling cutter for machining annular PCD slots in oxygen-free copper according to claim 1, characterized in that, A connecting pipe (5) is fixedly installed on the outer edge of the handle (1), and the connecting pipe (5) communicates with the inner wall of the through groove (6). An air jet pipe (7) is fixedly installed on the inner wall of the through groove (6).
5. A milling cutter for machining annular PCD slots in oxygen-free copper according to claim 4, characterized in that, The number of the jet pipes (7) is six, and the six jet pipes (7) are arranged in a circle on the inner wall of the through groove (6). The end of the six jet pipes (7) away from the through groove (6) is arranged in an inclined position inside the pipe body (2).
6. The milling cutter for machining annular PCD slots in oxygen-free copper according to claim 1, characterized in that, The handle (1) is made of alloy material.