A high-life end mill for machining automotive parts
By setting air guide grooves and flow channels on the end mill, the problem of rapid temperature rise of the end mill is solved by using airflow to cool and blow away debris, thus achieving a long service life for the end mill.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HONGDING AUTO PARTS
- Filing Date
- 2025-06-22
- Publication Date
- 2026-05-26
AI Technical Summary
Existing milling cutters experience rapid temperature rise during milling, leading to easy wear and frequent tool replacements.
A high-life end mill for machining automotive parts is designed. By setting air guide grooves and guide channels on the cutter bar, airflow is used to cool the cutter head and blow away debris. The middle support section is made of copper to enhance thermal conductivity.
It effectively reduces tool breakage caused by excessive temperature, extends the tool life, and cools down simultaneously, thereby increasing the service life of the milling cutter.
Smart Images
Figure CN224273425U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of milling cutter technology, and more specifically to a long-life milling cutter for machining automotive parts. Background Technology
[0002] A milling cutter is a cutting tool mounted on a spindle and primarily used for milling flat surfaces, steps, and forming surfaces on parts.
[0003] According to patent number CN207154844U, published on March 30, 2018, a CN durable end mill is disclosed.
[0004] In the prior art, including the aforementioned patent, when milling, the milling cutter usually cuts out a rough outline. After roughing, a more precise tool is then used for turning, which results in the milling cutter's temperature rising rapidly and making it more prone to wear. Utility Model Content
[0005] The purpose of this invention is to provide a long-life milling cutter for machining automotive parts, aiming to solve the above-mentioned problems.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-lifespan milling cutter for machining automotive parts, comprising a cutter shank and a cutter head, wherein the cutter shank is provided with a middle section support, and the middle section support is provided with a communicating air guide groove and a straight outlet hole, the straight outlet hole facing the cutter head.
[0007] Preferably, the air guide trough is provided with air deflector blades.
[0008] Preferably, the cutting head has two blade grooves arranged in a circumferential array, and the alloy blade is disposed on the blade grooves.
[0009] Preferably, a fixing screw is threaded onto the blade groove, and the fixing screw fixes the blade groove.
[0010] Preferably, the cutter bar has a guide channel, one end of which is connected to the air guide groove, and the other end of which faces the inclined surface on the cutter head.
[0011] Preferably, the tool holder is a tungsten steel tool holder.
[0012] Preferably, the middle support section is a copper block.
[0013] Preferably, the cutting head is provided with a mating groove.
[0014] In the above technical solution, the long-life milling cutter for processing automotive parts provided by this utility model has the following beneficial effects: the air guide groove on the middle support section guides the airflow to spray out along the straight outlet hole when rotating with the spindle, so as to cool the cutter head, reduce the chipping caused by excessive temperature, and extend the life of the cutter head. At the same time, the airflow in the guide channel blows away the debris while simultaneously cooling the cutter bar. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0016] Figure 1 This is an overall schematic diagram of an embodiment of the present utility model;
[0017] Figure 2 This is a schematic diagram of the blade explosion provided for an embodiment of the present utility model;
[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0019] Figure 4 This is a schematic cross-sectional view of an embodiment of the present utility model.
[0020] Explanation of reference numerals in the attached figures:
[0021] 1. Blade holder; 2. Mid-section support; 21. Air guide groove; 22. Air deflector blade; 23. Straight outlet hole; 24. Flow channel; 3. Blade head; 31. Blade groove; 32. Alloy blade; 321. Fixing screw. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.
[0023] like Figure 1-4 As shown, a high-life end mill for machining automotive parts includes a cutter shank 1 and a cutter head 3. The cutter shank 1 is provided with a middle support section 2, which has a communicating air guide groove 21 and a straight outlet hole 23, with the straight outlet hole 23 facing the cutter head 3.
[0024] Specifically, through the air guide groove 21 on the middle support section 2, when rotating with the main shaft, the air guide groove 21 guides the airflow to spray out along the straight outlet hole 23 to cool the cutter head 3, so as to reduce the chipping caused by excessive temperature and extend the life of the cutter head 3.
[0025] Furthermore, the air guide slot 21 is provided with deflector blades 22, which increase the air intake of the air guide slot 21 when rotating. The middle support part 2 is made of copper, which has better heat conduction and lower cost.
[0026] Furthermore, a guide channel 24 is provided on the cutter bar 1. One end of the guide channel 24 is connected to the air guide groove 21, and the other end of the guide channel 24 faces the inclined surface on the cutter head 3. While the cutter bar 1 is cooled synchronously through the guide channel 24, the airflow through the guide channel 24 blows away the debris. The cutter bar 1 is integrally formed of tungsten steel.
[0027] As a further embodiment of this utility model, the cutter head 3 has two blade grooves 31 arranged in a circumferential array, and the alloy blade 32 is disposed on the blade groove 31. The blade groove 31 is threaded with a fixing screw 321, which is used to fix the alloy blade 32 on the blade groove 31.
[0028] As a further embodiment provided in this utility model, the cutter head 3 is provided with a docking groove 10 for docking with the spindle.
[0029] The above description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A high life milling cutter for machining of automotive parts, characterized in that, It includes a cutter bar (1) and a cutter head (3). The cutter bar (1) is provided with a middle section support (2). The middle section support (2) has a connected air guide groove (21) and a straight outlet hole (23). The straight outlet hole (23) faces the cutter head (3).
2. The high life milling cutter for machining of automobile parts according to claim 1, characterized in that, The air guide groove (21) is provided with air deflector blades (22).
3. The high life milling cutter for machining of automobile parts as claimed in claim 1 wherein, The cutter head (3) has two blade grooves (31) arranged in a circular array, and an alloy blade (32) is provided on the blade groove (31).
4. The high life milling cutter for machining of automobile parts according to claim 3, characterized in that, A fixing screw (321) is threaded onto the blade groove (31), and the fixing screw (321) fixes the alloy blade (32).
5. The high life milling cutter for machining of automotive parts as claimed in claim 1 wherein, The cutter bar (1) has a guide channel (24) with one end connected to the air guide groove (21) and the other end facing the inclined surface on the cutter head (3).
6. The high life milling cutter for machining of automotive parts as claimed in claim 1 wherein, The tool holder (1) is a tungsten steel rod.
7. The high-lifespan milling cutter for machining automotive parts according to claim 1, characterized in that, The middle support section (2) is a copper block.
8. A high-lifespan milling cutter for machining automotive parts according to claim 1, characterized in that, The cutting head (3) is provided with a docking groove (10).