CN216941113U

CN216941113U - Novel conical spiral milling cutter

Info

Publication number: CN216941113U
Application number: CN202121458308.2U
Authority: CN
Inventors: 朱兆龙; 伍占文; 宋宇翔; 陆威; 徐王瑜; 郭晓磊
Original assignee: Nanjing Forestry University
Current assignee: Nanjing Forestry University
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2022-07-12
Anticipated expiration: 2031-06-29

Abstract

The utility model discloses a novel conical spiral milling cutter, wherein a cutter is provided with six rows of cutter teeth which are distributed on the circumference of a cutter body. The cutting edge on the end face of the cutter is processed into an oblique angle, and simultaneously, the cutter teeth and the rotating axis have a spiral angle, so that when the cutter mills a groove on the surface of the wood-plastic plate, a cutting edge with the spiral angle can cut into a workpiece more easily. The cutter is integrally conical, so that the theoretical cutting radius of the cutter is increased, and the flatness of a cutting surface is improved. The cutter can effectively improve the stability of cutting processing, improve the quality of cutting processing and reduce noise pollution.

Description

Novel conical spiral milling cutter

Technical Field

The utility model relates to the technical field of novel wood material processing milling cutters, in particular to a novel conical spiral milling cutter.

Background

The cutter is a main tool for processing wooden products, and the final processing quality is affected by the cutter material, angles (front angle, rear angle, wedge angle), cutting mode and the like. In the cutting process of wood, the larger front angle can effectively reduce the edge breakage phenomenon, and the larger rear angle can effectively improve the quality of the processed surface. Moreover, along with the rise of the cutting temperature, the temperature-sensitive wood-plastic composite material can be softened, so that the phenomenon of cutter sticking can be caused, the service life of the cutter is shortened, and the cutting quality is reduced. Reasonable cutter structural design can improve chip removal efficiency, reduce cutting heat, improve cutting process quality, can also reduce the noise pollution that produces among the cutting process, has played the positive role to environmental protection.

Milling is a wood cutting mode widely applied, during milling, a milling cutter rotates around a fixed shaft of a machine tool by taking a cutting edge as a bus, and the cutting edge performs cutting processing on a workpiece to be cut to form a cutting processing surface. In wood processing, milling is used in various single-machine, combined-machine tools and production lines working in milling mode, such as planing, thicknessing, tetrahedral planing, milling, edge banding, double-end milling, tenoning, drum chipper and chipper-making machines, for machining planes, profiled surfaces, tenons, mortises, copying sculptures, etc. Milling is also used to produce various process wood chips in the wood-based panels and in the pulp and paper industry.

At present, the machining efficiency and quality of the milling cutter can not meet the requirements of people, and a new milling cutter is urgently needed to be designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel conical spiral milling cutter, which optimizes the material selection, the structural parameters and the like of the cutter, improves the efficiency and the quality of cutting processing and reduces noise pollution.

In order to achieve the purpose, the utility model provides the following technical scheme:

a novel conical spiral milling cutter comprises six rows of cutter teeth.

Further, the rotation direction of the cutter teeth at the end part of the milling cutter is opposite to the rotation direction of the cutter teeth at the cutter body.

Further, the milling cutter is provided as a helical milling cutter with a helix angle of 10 °.

Further, the cutting rake angle of the milling cutter is 15 ° and the relief angle is 15 °.

Further, the body is conical from bottom to top, and the cutting edge is at an angle to the milling cutter rotation axis, which is defined here as 30 degrees.

Compared with the prior art, the utility model has the beneficial effects that:

according to the novel conical spiral milling cutter provided by the utility model, more cutter teeth participate in cutting on the same plane, so that the feed amount of each tooth is reduced, the motion unevenness is further reduced, and the cutting quality is improved.

The rotary direction of the cutter teeth at the end part of the milling cutter is opposite to that of the cutter teeth of the cutter body, when a plate-type component made of wood-plastic materials is machined, the edge part of the upper surface of a workpiece is pressed downwards by a cutter, and the edge part of the lower surface of the workpiece is pressed upwards by the cutter, so that the occurrence of edge breakage can be effectively reduced, and the cutting machining quality is improved.

The cutter is a spiral milling cutter with a spiral angle of 10 degrees, and the quality of the cutting machining surface is improved.

The larger front angle of the utility model can reduce the impact force received by the edge of the wood material and reduce the edge breakage phenomenon; the larger back angle can reduce the cutting force during cutting and machining, reduce the impact on the cutter and improve the service life of the cutter and the quality of the machined surface.

Drawings

FIG. 1 is a schematic structural diagram of a novel conical helical milling cutter disclosed by the utility model;

FIG. 2 is a labeled graph of the helix angle of the cutter teeth;

FIG. 3 is a labeled diagram of cutting rake and relief angles of the cutter teeth;

fig. 4 is a labeled diagram of the taper angle of the cutter.

In the figure: 1-a blade body; 2-cutter teeth; 3-a cutting edge; 4-helix angle; 5-hook angle; 6-relief angle; 7-angle of taper.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

The novel conical spiral milling cutter comprises six rows of cutter teeth 2, and the cutter teeth are easier to cut into a workpiece when a wood-plastic composite material is milled, so that the motion unevenness is reduced, the cutting quality is improved, and the noise pollution is reduced.

In this embodiment, the direction of rotation of the cutter teeth at the end of the milling cutter is opposite to the direction of rotation of the cutter teeth at the body, when a plate-type component made of a wood-plastic material is machined, the edge of the upper surface of a workpiece is pressed downwards by a cutter, and the edge of the lower surface of the workpiece is pressed upwards by the cutter, so that the occurrence of edge breakage can be effectively reduced, and the cutting machining quality is improved.

In this embodiment, the tool is provided as a helical milling cutter with a helix angle 4 of 10 °, which improves the quality of the machined surface.

In the embodiment, the front angle 5 and the back angle 6 when the cutter cuts are 15 degrees and 15 degrees respectively; the larger front angle of the utility model can reduce the impact force received by the edge of the wood material and reduce the edge breakage phenomenon; the larger back angle can reduce the cutting force during cutting and machining, reduce the impact on the cutter and improve the service life of the cutter and the quality of the machined surface.

In this embodiment the body is conical from bottom to top, the cutting edges having a certain helix angle 4 with the milling cutter axis of rotation, here designated 10 °.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to or changed within the scope of the present invention.

Claims

1. A novel conical spiral milling cutter is characterized in that a cutter is provided with six rows of cutter teeth (2) which are distributed on the circumference of a cutter body (1).

2. The new tapered helical milling cutter according to claim 1, wherein: the rotary direction of the cutter teeth at the end part of the milling cutter is opposite to the rotary direction of the cutter teeth of the cutter body.

3. The new tapered helical milling cutter according to claim 1, wherein: the cutter is a spiral milling cutter with a spiral angle (4) of 10 degrees.

4. The new tapered helical milling cutter according to claim 1, wherein: the front angle (5) of the cutter during cutting is 15 degrees, and the rear angle (6) of the cutter during cutting is 15 degrees.

5. The new tapered helical milling cutter according to claim 1, wherein: the cutter teeth are conical from bottom to top, the taper angle (7) is 30 degrees, and meanwhile the cutting edges (3) and the rotation axis of the milling cutter form a certain angle.