CN217393844U

CN217393844U - PCD milling cutter for processing carbon fiber composite material

Info

Publication number: CN217393844U
Application number: CN202222022153.9U
Authority: CN
Inventors: 寇自力; 邱志国; 王润; 吴明蒗; 张昕
Original assignee: Chengdu Diamond Tools Co ltd
Current assignee: Chengdu Diamond Tools Co ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2022-09-09
Anticipated expiration: 2032-08-03

Abstract

The utility model discloses a processing carbon-fibre composite's PCD milling cutter relates to milling cutter technical field, including the milling cutter main part, the milling cutter main part includes cutter body and a plurality of sword base, and a plurality of sword bases are fixed in one of cutter body and serve, and evenly distributed is gone up along the circumferencial direction of cutter body to a plurality of sword bases, and the interval is equipped with a plurality of cutting edges on every sword base, is equipped with the cutting flutes between two adjacent cutting edges on every sword base, and the cutting edge staggered distribution on two adjacent sword bases. The utility model discloses utilize the cutting edge to carry out layering cutting work to the material, can effectual reduction to cutting material extrusion deformation's influence.

Description

PCD milling cutter for processing carbon fiber composite material

Technical Field

The utility model relates to a milling cutter technical field especially relates to a processing carbon-fibre composite's PCD milling cutter.

Background

With the increasing requirements of vehicles and aerospace on light weight manufacturing, a great number of composite materials are applied to airplanes, automobiles and weaponry, and the carbon fiber composite material has the excellent properties of high strength and light weight, so that the proportion of the carbon fiber composite material in a product even becomes an important index for evaluating the advancement of the product by a person in the field.

The carbon fiber composite material is formed by laminating a carbon fiber fabric and an adhesive, and has the advantages of high tensile strength of carbon fiber and light weight, for example, the tensile strength of the carbon fiber resin composite material is generally over 3500MPa and far exceeds that of steel. For processing, the carbon fiber composite material has the characteristic that the carbon fiber fabric has large abrasion to a cutter, and also has the defect that the laminated material is easy to layer during processing. The wear resistance of the traditional hard alloy milling cutter can not meet the requirement of processing carbon fiber composite materials, and PCD (diamond) milling cutters are increasingly adopted in the industry to process the carbon fiber composite materials, so that the high wear resistance of the PCD materials is mainly used for obtaining the long service life of the cutter.

However, the existing PCD cutters adopt full-edge cutting, as shown in fig. 6, the extrusion force of the cutting edge of the cutter on the material is too large, and particularly near the upper and lower surfaces of the material, the too large extrusion force is very easy to cause material delamination.

Therefore, there is a high demand in the market for a PCD milling cutter for processing carbon fiber composite materials, which solves the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a processing carbon-fibre composite's PCD milling cutter for solve the technical problem that exists among the above-mentioned prior art, can effectual reduction to cutting material's extrusion force.

In order to achieve the above object, the utility model provides a following scheme:

the utility model discloses a processing carbon-fibre composite's PCD milling cutter, including the milling cutter main part, the milling cutter main part includes cutter body and a plurality of sword base, and is a plurality of the sword base is fixed in serve of cutter body is a plurality of the sword base is followed evenly distributed in the circumferencial direction of cutter body, every the interval is equipped with a plurality of cutting edges, every on the sword base adjacent two on the sword base be equipped with the cutting flutes between the cutting edge, adjacent two on the sword base the cutting edge is crisscross to be distributed.

Preferably, a plurality of cutter grooves are formed in the cutter body, and the cutter blank is welded in the cutter grooves.

Preferably, the knife grooves are L-shaped grooves.

Preferably, the rake face and the back face of the blade blank are fixed to both faces of the pocket, respectively.

Preferably, the number of the knife blanks is six or nine, and the diameter of an outer ring enclosed by all the knife blanks is 6-25 mm.

Preferably, adjacent three of the knife blanks are cutting groups, and the height of the first cutting edge on the three knife blanks in each cutting group is gradually increased or decreased.

Preferably, the cutting edge is rectangular in shape.

Preferably, the knife blank is made of PCD.

The utility model discloses for prior art gain following technological effect:

1. the cutter grooves are arranged and are L-shaped grooves, so that 6 cutter blanks can be installed, and the technical effect of prolonging the service life of the milling cutter main body is realized;

2. the cutting blades are arranged at intervals and distributed in a staggered manner, so that the technical effect of layered cutting is realized, the influence on the extrusion deformation of a cutting material can be reduced, the material layering is avoided, and the required total cutting force is small;

3. the cutting edge is rectangular in shape, and the width of the cutting edge does not change even after the cutting edge is ground.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a PCD milling cutter for processing carbon fiber composite materials according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a cutter groove in a PCD milling cutter for processing carbon fiber composite materials according to an embodiment of the invention;

fig. 3 is a schematic end view of a PCD milling cutter for processing carbon fiber composite materials according to an embodiment of the present invention after a cutter blank is installed therein;

fig. 4 is a cross-sectional view of a tool blank of a PCD milling cutter for processing carbon fiber composite materials according to an embodiment of the present invention;

fig. 5 is a schematic diagram of material stress when the PCD milling cutter for processing carbon fiber composite material of the embodiment of the present invention actually cuts;

FIG. 6 is a schematic view of the material being stressed during actual cutting by a milling cutter according to the prior art;

in the figure: 1, a cutter body; 11-a knife slot; 2-cutting blank; 21-a cutting edge; 22-cutting a groove; 23-a rake face; 24-back side; 100-PCD milling cutter for processing carbon fiber composite material.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 1 to 5, the PCD milling cutter 100 for processing carbon fiber composite material according to the present embodiment includes a milling cutter body, the milling cutter body includes a cutter body 1 and a plurality of prefabricated cutter blanks 2, the plurality of cutter blanks 2 are fixed to one end of the cutter body 1, the plurality of cutter blanks 2 are uniformly distributed along a circumferential direction of the cutter body 1, a plurality of cutting edges 21 are spaced apart from each other on each cutter blank 2, a cutting groove 22 is formed between two adjacent cutting edges 21 on each cutter blank 2, and the cutting edges 21 on two adjacent cutter blanks 2 are distributed in a staggered manner.

In use, the cutting edges of the tool blank 2 cut the material being cut as the milling cutter body rotates. As shown in fig. 4, after one of the tool blanks 2 performs a cutting action on the cutting material, some remaining material projections remain on the cutting material, and at this time, as the milling cutter body rotates, the cutting edge of the next tool blank 2 performs a cutting action on the remaining material projections, and then rotates to the next tool blank 2 until the inner wall is smooth, thereby performing a cutting action on the cutting material. Different from the prior art, the cutter blank 2 and the cutting material are subjected to cutting action through the cutting edge, the contact area is small, the problem of extrusion deformation of the cutting material is avoided, material layering is effectively avoided, and the required cutting force is small.

In this embodiment, a plurality of knife grooves 11 are provided on the outer side wall of the end portion of the knife body 1, and the knife blank 2 is fixed in the knife grooves 11 by vacuum welding.

In this embodiment, as shown in fig. 2 to 3, the pocket 11 is an L-shaped groove, a corner of the L-shaped groove is disposed toward the center of the cutter body 1, and an opening of the L-shaped groove is disposed toward the outer side of the cutter body 1. By using the special cutter groove 11 structure of the L-shaped groove, a plurality of cutter grooves 11 can be arranged in the circumferential direction of the cutter body 1, so that more cutter blanks 2 can be connected, and the service life of the milling cutter body is prolonged.

In the present embodiment, as shown in fig. 4, the blank 2 has the rake surface 23 and the back surface 24, and the rake surface 23 and the back surface 24 of the blank 2 are fixed to both surfaces of the pocket 11, respectively. Wherein, the corner in L shape groove is fixed in to one side of rake face 23, and the opposite side is the blade, and sets up the cutting edge on the blade for realize the cutting action.

In the present embodiment, as shown in fig. 2 to 3, the six pockets 11 and the six blanks 2 are uniformly distributed in the circumferential direction of the cutter body 1, so that a six-edged cutter is formed, and the service life of the milling cutter body can be effectively prolonged. Further, those skilled in the art may adjust the number of the pockets 11 and the blade blank 2 to nine, or more, which is not limited herein. It should be noted that, as shown in fig. 3, six (or nine) tool blanks 2 enclose a circular ring structure, and the outer ring diameter (i.e. the diameter enclosed by the tool tip portion) of the plurality of tool blanks 2 ranges from 6 mm to 25 mm.

In the present embodiment, three adjacent blanks 2 are a cutting group, the six blanks 2 are divided into two groups, the height (in the clockwise direction or the counterclockwise direction) of the first cutting edge on the three blanks 2 in each cutting group gradually increases or decreases, and the distribution of the second and the other cutting edges is the same as the distribution of the first cutting edge. Under the combined action of the three cutter blanks 2 in the cutting group, the cutting action can be carried out on the cutting material. The cutting effect is good, the cutting material is not layered, and the cutting force is reduced.

In this embodiment, the shape of the cutting edge is rectangular, and compared with a trapezoidal block or a tapered block, when the cutting edge is polished, the width of the rectangular cutting edge does not change, and the consistency of the new knife and the polishing knife is effectively ensured.

In this embodiment, the material of the cutter blank 2 is PCD, and the material of the cutter body 1 is cemented carbide, and those skilled in the art can adjust the specific materials of the PCD and the cutter body according to actual needs.

The principle and the implementation of the present invention are explained by applying specific examples in this specification, and the above descriptions of the examples are only used to help understand the method and the core idea of the present invention; meanwhile, for those skilled in the art, the idea of the present invention may be changed in the specific embodiments and the application range. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. A PCD milling cutter for processing carbon fiber composite materials is characterized in that: including the milling cutter main part, the milling cutter main part includes cutter body and a plurality of sword base, and is a plurality of the sword base is fixed in one of cutter body is served, and is a plurality of the sword base is followed evenly distributed, every on the circumferencial direction of cutter body the interval is equipped with a plurality of cutting edges on the sword base, every adjacent two on the sword base be equipped with the cutting flutes between the cutting edge, adjacent two on the sword base the cutting edge staggered distribution.

2. The PCD milling cutter for processing carbon fiber composite material as claimed in claim 1, wherein: the knife body is provided with a plurality of knife grooves, and the knife blank is welded in the knife grooves.

3. The PCD milling cutter for processing carbon fiber composite material as claimed in claim 2, wherein: the cutter groove is an L-shaped groove.

4. The PCD milling cutter for processing carbon fiber composite material as claimed in claim 3, wherein: the front tool face and the back face of the cutter blank are respectively fixed on two faces of the cutter groove.

5. The PCD milling cutter for processing carbon fiber composite material as claimed in claim 1, wherein: six or nine cutter blanks are arranged, and the diameter of an outer ring formed by enclosing all the cutter blanks is 6-25 mm.

6. The PCD milling cutter for processing carbon fiber composite material as claimed in claim 5, wherein: the adjacent three blanks are cutting groups, and the height of the first cutting edge on the three blanks in each cutting group is gradually increased or decreased.

7. The PCD milling cutter for machining carbon fiber composites according to claim 1, wherein: the cutting edge is rectangular in shape.

8. The PCD milling cutter for processing carbon fiber composite material as claimed in claim 1, wherein: the knife blank is made of PCD.