Large-cutting-depth side milling end mill
By designing a large-cut deep side milling cutter, the combined cutting process of the first rough milling cutter, the second rough milling cutter and the light-cutting cutter is adopted, and the surface quality and deformation problems when processing deep and thin workpieces are solved, achieving efficient and non-connected tool marking processing effect.
Patent Information
- Application Number
- CN202422144248.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-02
AI Technical Summary
In the prior art, when processing deep and thin workpieces, conventional aluminum alloy milling cutters have poor surface quality. Using extended-edge aluminum alloy milling cutters can easily lead to deformation and vibration of the workpiece, making it difficult to ensure processing efficiency and surface quality at the same time.
A large-cut deep side end milling cutter is designed, including the first rough milling cutter, the second rough milling cutter and the light-cutting cutter. Through the combination of different tools, large margin and small margin are handled separately to reduce the situation of the tooling, and a small margin is removed through the light-cutting cutter to ensure surface quality.
It realizes that when processing deep and thin workpieces, reduce the situation of cutting tools, ensure that there is no jointed cutter on the surface of the workpiece, and improves processing efficiency and surface quality.
Smart Images
Figure CN223056795U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of machining, and particularly relates to a side milling end mill with large cutting depth. Background Art
[0002] When machining workpieces with deep and thin surfaces, the following two processes are usually adopted for machining:
[0003] First, use a conventional aluminum alloy milling cutter (the cutting edge length is 2-4 times the tool diameter) for layer-by-layer machining. This machining process is limited by the tool edge length and mills layer by layer when machining deep side walls. After machining, obvious tool joint marks exist on the workpiece surface, affecting the surface quality of the machined surface and resulting in a long machining time.
[0004] Second, use an extended-edge aluminum alloy milling cutter (the cutting edge length is 5-8 times the tool diameter) for one-time machining and forming. Although this machining process can solve the problems of obvious tool joint marks on the machined surface and long machining time, during machining, the too long contact surface will cause the thin wall surface to "yield" and vibrate during rough machining, resulting in unqualified perpendicularity requirements for the deformed machined surface.
[0005] Therefore, it is necessary to design a new tool to solve or alleviate the above problems. Summary of the Utility Model
[0006] The purpose of the utility model is to provide a side milling end mill with large cutting depth to solve the problems mentioned in the above background art.
[0007] To achieve the above purpose, a technical solution adopted by the utility model is: a side milling end mill with large cutting depth, including a tool body and a tool shank. A first rough milling cutter, a second rough milling cutter, and a finishing cutter are arranged on the tool body. The side edge of the first rough milling cutter has a taper, and its small diameter is located at the tool tip and the large diameter is close to the tool shank. The side edge of the second rough milling cutter has a taper, and its large diameter is located at the tool tip and the small diameter is close to the tool shank. The cutter diameter of the finishing cutter is not less than the maximum cutter diameter of the first rough milling cutter and the second rough milling cutter.
[0008] Preferably, the angles of the clearance faces of the first rough milling cutter and the second rough milling cutter are both between 13-18 degrees.
[0009] Preferably, the angle of the clearance face of the finishing cutter is 1-3 degrees.
[0010] Preferably, the tapers of the side edges of the first rough milling cutter and the second rough milling cutter are both between 0.5-1.5 degrees.
[0011] Preferably, the cutter diameter of the finishing cutter is 0.02-0.06 mm larger than the maximum cutter diameter of the first rough milling cutter and the second rough milling cutter.
[0012] Preferably, the distance from the first rough milling cutter to the tool shank is greater than the distance from the second rough milling cutter to the tool shank, and the distance from the second rough milling cutter to the tool shank is greater than the distance from the finishing cutter to the tool shank.
[0013] Advantages of the present utility model: The first rough milling cutter is located near the tool shank end, with better tool clamping rigidity, and the tool is not prone to tool deflection. Therefore, the first rough milling cutter is responsible for the first large allowance cutting; the second rough milling cutter removes a small part of the workpiece allowance. The large diameter of this rough milling cutter is far from the tool shank end, with relatively weak tool clamping rigidity, and the tool is prone to tool deflection. Therefore, the second rough milling cutter is responsible for the second small allowance cutting, minimizing the occurrence of tool deflection; the finishing cutter removes the tiny workpiece allowance in the middle and at both ends of the workpiece, enabling micro-cutting to reduce the occurrence of tool deflection, and the tool processes the entire machined surface without generating jointing marks, ensuring the surface quality of the workpiece. Description of the Drawings
[0014] Figure 1 is the front view of the present utility model;
[0015] Figure 2 is the top view of the present utility model;
[0016] Figure 3 is the schematic shape diagram of the first rough milling cutter in the present utility model;
[0017] Figure 4 is the schematic shape diagram of the second rough milling cutter in the present utility model;
[0018] Figure 5 is the schematic shape diagram of the finishing cutter in the present utility model;
[0019] In the figure: 1, tool shank; 2, tool body; 3, first rough milling cutter; 4, second rough milling cutter; 5, finishing cutter. Detailed Embodiments
[0020] The following elaborates on the preferred embodiments of the present utility model with reference to the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined. Embodiment
[0021] Refer to Figure 1 , a large depth-of-cut side milling end mill, comprising a tool body 2 and a tool shank 1. The tool body 2 is provided with a first rough milling cutter 3, a second rough milling cutter 4, and a finishing cutter 5. The side edge of the first rough milling cutter 3 has a taper, and its small diameter is located at the tool tip and the large diameter is close to the tool shank 1. The side edge of the second rough milling cutter 4 has a taper, and its large diameter is located at the tool tip and the small diameter is close to the tool shank 1. The tool diameter of the finishing cutter is not less than the maximum tool diameter of the first rough milling cutter 3 and the second rough milling cutter 4.
[0022] Among them, the angles of the back rake faces of the first rough milling cutter and the second rough milling cutter 4 are both between 13 and 18 degrees.
[0023] Among them, the angle of the back rake face of the finishing cutter is 1 to 3 degrees, preferably 2 degrees.
[0024] Among them, the tapers of the side edges of the first rough milling cutter 3 and the second rough milling cutter 4 are both between 0.5 and 1.5 degrees, preferably 1 degree.
[0025] Among them, the cutter diameter of the finishing cutter 5 is 0.02 to 0.06 mm larger than the maximum cutter diameter of the first rough milling cutter 3 and the second rough milling cutter 4, preferably 0.04 mm.
[0026] Among them, the distance from the first rough milling cutter 3 to the tool holder 1 is greater than the distance from the second rough milling cutter 4 to the tool holder 1, and the distance from the second rough milling cutter 4 to the tool holder 1 is greater than the distance from the finishing cutter 5 to the tool holder 1.
[0027] Working process and principle: When this product is in use, the first rough milling cutter 3 is responsible for the first large allowance cutting, and the second rough milling cutter is responsible for the second small allowance cutting, so as to minimize the tool deflection; subsequently, the finishing cutter 5 cuts off the small workpiece allowances in the middle and at both ends of the workpiece, so that the machined product will not generate jointing lines and ensure the surface quality of the workpiece.
[0028] The above are only the embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.
Claims
1. A side milling end mill with large depth of cut, characterized in that: It includes a tool body (2) and a tool handle (1). A first rough milling cutter (3), a second rough milling cutter (4) and a finishing cutter (5) are arranged on the tool body (2). The side edge of the first rough milling cutter (3) has a taper, and its small diameter is located at the tool tip and the large diameter is close to the tool handle (1). The side edge of the second rough milling cutter (4) has a taper, and its large diameter is located at the tool tip and the small diameter is close to the tool handle (1). The cutter diameter of the finishing cutter is not less than the maximum cutter diameter of the first rough milling cutter (3) and the second rough milling cutter (4).
2. The side milling end mill with large depth of cut according to claim 1, wherein: The angles of the clearance angles of the rear surfaces of the first rough milling cutter and the second rough milling cutter (4) are both between 13 and 18 degrees.
3. The side milling end mill with large depth of cut according to claim 1, wherein: The angle of the clearance angle of the finishing cutter is 1 to 3 degrees.
4. A side milling end mill with large depth of cut according to claim 1, characterized in that: The tapers of the side edges of the first rough milling cutter (3) and the second rough milling cutter (4) are both between 0.5 and 1.5 degrees.
5. A side milling end mill with large depth of cut according to claim 1, characterized in that: The cutter diameter of the finishing cutter (5) is 0.02 to 0.06 mm larger than the maximum cutter diameter of the first rough milling cutter (3) and the second rough milling cutter (4).
6. The side milling end mill with large depth of cut according to claim 1, characterized in that: The distance from the first rough milling cutter (3) to the tool handle (1) is greater than the distance from the second rough milling cutter (4) to the tool handle (1), and the distance from the second rough milling cutter (4) to the tool handle (1) is greater than the distance from the finishing cutter (5) to the tool handle (1).