CN214978016U - Milling cutter structure for surface treatment - Google Patents
Milling cutter structure for surface treatment Download PDFInfo
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- CN214978016U CN214978016U CN202120232979.0U CN202120232979U CN214978016U CN 214978016 U CN214978016 U CN 214978016U CN 202120232979 U CN202120232979 U CN 202120232979U CN 214978016 U CN214978016 U CN 214978016U
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Abstract
The application provides a milling cutter structure for surface treatment, which comprises a cutter head, wherein the cutter head is provided with a cutter body and a plurality of cutting edges arranged on the cutter body, the plurality of cutting edges are uniformly distributed in a circumferential array by taking the axial direction of the cutter body as a reference, one end surface of each cutting edge is overlapped with one end surface of the cutter body to form end teeth, and the other end of each cutting edge spirally extends along the length direction of the cutter body; the one end that the cutter body axis was kept away from to the end tooth is equipped with plane portion, and is equipped with the inclined plane portion that is located between cutter body and the plane portion on the end tooth, and inclined plane portion angle is the cutting edge inclination of positive value. The technical effect of the technical scheme is as follows: the end of the end tooth far away from the axis of the cutter body is provided with a plane part for cutting and simultaneously has the function of surface treatment and light modification. Meanwhile, the inclined surface forms an angle of a positive blade inclination angle, and when the cutting is carried out, the cutting chips flow to the surface to be processed, so that the processed surface is not easy to scratch, and the machined part can obtain a smaller surface roughness value. Thereby improving the smoothness of the surface of the product when the milling cutter is used for processing.
Description
Technical Field
The utility model relates to a metal surface treatment cutter technical field, concretely relates to milling cutter structure for surface treatment.
Background
In the prior art, the end milling cutter is divided into a rough milling cutter and a fine milling cutter, and the two types of cutters have the advantages that: the rough machining adopts a rough milling cutter, so that large cutting width and depth and large feeding can be realized; the finish machining uses a finish milling cutter, and can realize high surface quality and high requirements on flatness, verticality and the like. The shape of the cutting edge of the finish milling cutter is linear because the finish milling cutter needs to ensure high surface quality of a workpiece, but the cutting efficiency is low because the contact area is large and the cutting does not have large cutting width and depth and large feeding. Therefore, a new technical solution is needed to solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the application provides a milling cutter structure for surface treatment, and the technical scheme of this application is equipped with plane portion through the one end of keeping away from the axis of cutter body at the end tooth, and is equipped with the inclined plane portion that is located between cutter body and the plane portion on the end tooth, and the cutter of being convenient for cuts into certain degree of depth to the metal surface. The bevel portion forms a blade inclination angle having a positive value, and chips flow toward a surface to be machined during cutting, so that the machined surface is not easily scratched, thereby improving the smoothness of the surface of a product during milling cutter machining.
The milling cutter structure for surface treatment comprises a cutter body, wherein the cutter body is a cylindrical rod-shaped component, the cutter body is provided with a plurality of cutting edges, the plurality of cutting edges extend spirally along the axial direction of the cutter body, one end of each cutting edge along the axial direction of the cutter body is provided with an end tooth, and the cutting edges form a cutting edge peripheral tooth along the radial outer edge of the cutter body;
the one end that the end tooth kept away from the axis of cutter body is equipped with plane portion, just be equipped with on the end tooth be located the cutter body with the inclined plane portion between the plane portion, the inclined plane portion angle is the cutting edge inclination of positive value.
The technical effect of the technical scheme is as follows: the end of the end tooth far away from the axis of the cutter body is provided with a plane part for cutting and simultaneously has the function of surface treatment and light modification. Meanwhile, the inclined surface forms an angle of a positive blade inclination angle, and when the cutting is carried out, the cutting chips flow to the surface to be processed, so that the processed surface is not easy to scratch, and the machined part can obtain a smaller surface roughness value. Thereby improving the smoothness of the surface of the product when the milling cutter is used for processing.
Preferably, the angle of the blade inclination angle is 3-4 °.
Preferably, the end tooth includes: the first back knife face portion of end tooth is located before the end tooth knife face portion with between the knife face portion behind the end tooth second, just before the end tooth knife face portion with the juncture of the first back knife face portion of end tooth forms the end tooth cutting edge area.
Preferably, the number of the cutting edges is four.
Preferably, the four cutting edges are centrifugally distributed by taking the axis of the cutter body as a reference, and the distance between the surfaces of the end tooth cutting edges of the two cutting edges at intervals is 0.04-0.06 cm.
Preferably, chip grooves are formed between adjacent peripheral teeth of the blade; chip flutes are formed between adjacent end teeth.
Preferably, the blade peripheral teeth comprise: the peripheral tooth front cutter face part, the peripheral tooth first rear cutter face part and the peripheral tooth second rear cutter face part are positioned between the peripheral tooth front cutter face part and the peripheral tooth second rear cutter face part, and form a peripheral tooth front angle of the cutting edge, a peripheral tooth back angle of the cutting edge and a peripheral tooth back angle of the cutting edge;
the angle of the peripheral tooth rake angle of the blade is as follows: l is1And S1Angle therebetween, wherein L1Is the shortest connecting line between the intersecting line of the first rear cutter face part of the peripheral teeth and the front cutter face part of the peripheral teeth and the axis of the cutter body, and S1The surface of the peripheral tooth front cutter face part is the surface;
the first peripheral tooth clearance angle of the blade is as follows: l is2And S2Angle therebetween, wherein L2And L1Is vertically arranged, said S2The surface of the first rear cutter surface part of the peripheral tooth is the surface;
the peripheral tooth back angle of the blade is as follows: l is2And S3Wherein S is included angle therebetween, wherein2The surface of the second back tool surface part of the peripheral teeth.
Preferably, the angle of the peripheral tooth rake angle of the blade is: 10-15 degrees, and the first clearance angle of the peripheral teeth of the cutting edge is as follows: 10-15 degrees, and the peripheral tooth relief angle of the blade is as follows: 20 to 25 degrees.
Preferably, the end teeth have an end tooth front angle, an end tooth back angle I and an end tooth back angle II, the angle of the end tooth front angle is 4-7 degrees, the angle of the end tooth back angle I is 8-12 degrees, and the angle of the end tooth back angle II is 15-20 degrees.
Preferably, the angle of the blade clearance angle is 40-45 °.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art will be briefly described below.
Fig. 1 is a schematic perspective view of a milling cutter structure for surface treatment according to the present embodiment;
fig. 2 is a schematic structural view of a milling cutter for surface treatment according to the present embodiment in a front view direction;
FIG. 3 is a schematic view of the left side view of FIG. 2;
FIG. 4 is an enlarged partial schematic view at A of FIG. 3;
FIG. 5 is a schematic illustration of the positional and angular relationships between the front tooth flank portion, the first rear tooth flank portion and the second rear tooth flank portion of the end tooth in this embodiment;
FIG. 6 is a schematic view of the position and spacing between end teeth in this embodiment;
FIG. 7 is a schematic view of the configuration of the blade clearance angle in the present embodiment;
fig. 8 is a schematic view of the positional relationship between the flat surface portion and the inclined surface portion in the present embodiment.
Wherein the reference numbers referred to in the figures are as follows:
11-end teeth; 12-plane section; 13-a ramp portion; 14-end tooth front blade surface part; 15-an end tooth first relief face portion; 16-end tooth second rear flank portion; 17-blade peripheral teeth; 18-peripheral teeth front knife face part; 19-peripheral teeth first flank portion; 20-second rear blade surface part of peripheral teeth.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 8, the present embodiment proposes a milling cutter structure for surface treatment, comprising a cutter body having a cutter head, wherein the cutter body has a length L3The diameter of the cutter body is D1The diameter of the tool bit is D2The cutter head is provided with a cutter body and a plurality of cutting edges arranged on the cutter body, wherein the length of each cutting edge is L4The plurality of cutting edges are uniformly distributed in a circumferential array by taking the axial direction of the cutter body as a reference, wherein the diameter D of the cutter body3Is 40 to 45 percent multiplied by D2(ii) a One end face of the cutting edge is overlapped with one end face of the cutter body to form an end tooth 11, and the other end of the cutting edge extends spirally along the length direction of the cutter body; wherein the helix angle A1 of the blade is 30-45 degrees.
The end tooth 11 is far away from the one end of the axis of cutter body is equipped with plane portion 12, just be equipped with on the end tooth 11 be located the cutter body with inclined plane portion 13 between plane portion 12, inclined plane portion 13 formation angle is cutting edge inclination A of positive value2。
The technical effect of the technical scheme is as follows: the end of the end tooth 11 far from the axis of the cutter body is provided with a plane part 12 for cutting and simultaneously having the function of surface treatment and smoothing. Meanwhile, the inclined surface part 13 forms an edge inclination angle A with a positive angle2When cutting, the chips flow to the surface to be machined, so that the machined surface is not easy to scratch, and the machined part can obtain a smaller surface roughness value. Thereby improving the smoothness of the surface of the product when the milling cutter is used for processing.
Further, the width of the plane part 12 along the radial direction of the cutter body is 8% to 9% x D2
Further, the angle A of the blade inclination angle2Is 3-4 degrees.
Further, the end tooth 11 includes: the first back knife-face portion of end tooth 15 is located between the first back knife-face portion of end tooth 14 with the second back knife-face portion of end tooth 16, just the first back knife-face portion of end tooth 14 with the juncture of the first back knife-face portion of end tooth 15 forms the end tooth margin.
As an embodiment of this embodiment, the number of the blades is four. The technical effect of this embodiment lies in that the quantity of cutting edge is four to improved milling cutter's structural strength, the reduction of chip removal ability when the drawback brought simultaneously, further, cutting edge tooth clearance angle A9The angle is 40-45 degrees. The clearance angle is positive and relatively large to facilitate sharper cutting edges and to enhance chip holding and removal.
Furthermore, the four cutting edges are centrifugally distributed by taking the axis of the cutter body as a reference, and the distance H between the surfaces of the end tooth blade bands of the two cutting edges at intervals4Is 0.04-0.06 cm.
As an embodiment of the present embodiment, a chip groove is formed between adjacent blade peripheral teeth 17; chip flutes are formed between adjacent end teeth 11.
As an embodiment of this embodiment, the blade peripheral teeth 17 include: a peripheral tooth rake surface portion 18, a peripheral tooth first flank portion 19, and a peripheral tooth second flank portion 20, the peripheral tooth first flank portion 19 being located between the peripheral tooth rake surface portion 18 and the peripheral tooth second flank portion 20 and forming a peripheral tooth edge rake angle, a peripheral tooth edge relief angle one, and a peripheral tooth edge relief angle two;
cutting edge peripheral tooth front angle A3The angle of (A) is as follows: l is1And S1Angle therebetween, wherein L1The shortest connecting line between the intersecting line of the peripheral tooth first rear blade surface part 19 and the peripheral tooth front blade surface part 18 and the axis of the cutter body is S1The surface of the peripheral tooth rake surface part 18;
cutting edge peripheral tooth relief angle A4Comprises the following steps: l is2And S2Angle therebetween, wherein L2And L1Is vertically arranged, said S2The surface of the peripheral tooth first flank portion 19;
cutting edge peripheral tooth relief angle A5Comprises the following steps: l is2And S3Wherein S is included angle therebetween, wherein2The peripheral tooth second flank portion 20 is located.
Further, the edge peripheral teeth rake angle A3The angle of (A) is as follows: 10-15 degrees, and a cutting edge peripheral tooth back angle A4Comprises the following steps: 10-15 degrees, and the peripheral tooth relief angle of the blade is two A5Comprises the following steps: 20 to 25 degrees.
As an embodiment of this embodiment, the end teeth 11 have an end tooth rake angle A6End tooth relief angle A7And end tooth relief angle two A8The front angle of the end tooth A6The angle of (A) is 4-7 degrees, and the end tooth back angle A7The angle of the end tooth is 8-12 degrees, and the end tooth back angle is two A8The angle of the angle is 15-20 degrees.
Wherein, the width H of the first clearance angle of the peripheral teeth of the blade1Is multiplied by D of 5 to 8 percent2(ii) a Width H of blade peripheral tooth back angle two215 to 18 percent of multiplied by D2(ii) a Width H of end tooth clearance angle one3Is 10% multiplied by D2(ii) a Protective width H of knife tip52% -3% multiplied by D2.
In addition, in order to improve the heat dissipation capacity of the milling cutter during machining, the circumferential surface of the cutter head can be provided with a vent hole penetrating through the axis of the cutter body, so that the convection of gas can be accelerated, and the heat dissipation is facilitated. Wherein the ventilation holes are located on the blade peripheral teeth 17.
The technical scheme has the advantages that the effect of an appearance piece can be achieved after the end face and the side face of the cutter are cut, no burr, no transverse line, no vertical line and no negative and positive face exist, the grinding and polishing process is omitted, and direct anodic treatment is carried out. And the large chip removal space and the low cutting resistance provide sufficient conditions for large-feed efficient chips, and the cutting efficiency is improved by 30 percent. In addition, during processing operation, the production cost is reduced by 20 percent, and the production efficiency is improved by 30 percent.
The end tooth front cutter face, the end tooth rear cutter face I, the end tooth rear cutter face II, the peripheral tooth front cutter face, the peripheral tooth rear cutter face I and the peripheral tooth rear cutter face II are general technical terms in the field respectively, and for convenience of understanding, the explanation is still provided in the text, in the process of machining a workpiece in the vertical direction, the end tooth front cutter face is the face firstly contacted with the workpiece, and then the end tooth rear cutter face I and the end tooth rear cutter face II are sequentially arranged in the same end tooth; when a workpiece is machined in the horizontal direction, in the same peripheral tooth, a peripheral tooth front cutter face is the face which is firstly contacted with the workpiece, and then a peripheral tooth rear cutter face I and a peripheral tooth rear cutter face II are sequentially arranged; this paragraph is merely for explanation and illustration of general technical terms and does not refer to the substance in the technical solution.
For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (10)
1. The milling cutter structure for surface treatment is characterized by comprising a cutter body, wherein the cutter body is a cylindrical rod-shaped component, a plurality of cutting edges are arranged on the cutter body, the plurality of cutting edges spirally extend in the axial direction of the cutter body, end teeth (11) are formed at one end of each cutting edge along the axial direction of the cutter body, and peripheral teeth (17) are formed at the outer edge of each cutting edge along the radial direction of the cutter body;
the one end that end tooth (11) kept away from the axis of cutter body is equipped with plane portion (12), just be equipped with on end tooth (11) be located the cutter body with inclined plane portion (13) between plane portion (12), inclined plane portion (13) form the cutting edge inclination that the angle is the positive value.
2. The milling cutter structure for surface treatment according to claim 1, wherein: the angle of the blade inclination angle is 3-4 degrees.
3. The milling cutter structure for surface treatment according to claim 1, characterized in that the end tooth (11) comprises: the first back rake face portion of end tooth (14), the first back rake face portion of end tooth (15) and end tooth second back rake face portion (16), the first back rake face portion of end tooth (15) are located before the end tooth rake face portion (14) with between end tooth second back rake face portion (16), just the juncture of the first back rake face portion of end tooth (15) of end tooth (14) with form the end tooth margin.
4. The milling cutter structure for surface treatment according to claim 3, wherein the number of the cutting edges is four.
5. The milling cutter structure for surface treatment according to claim 4, wherein the four cutting edges are eccentrically distributed with respect to the axis of the cutter body, and the distance between the surfaces of the end tooth lands of two cutting edges spaced apart from each other is 0.04 to 0.06 cm.
6. The milling cutter structure for surface treatment according to claim 5, wherein chip flutes are formed between adjacent peripheral cutting teeth (17); chip flutes are formed between adjacent end teeth.
7. The milling cutter structure for surface treatment according to claim 6, wherein the blade peripheral teeth (17) include: the peripheral tooth front cutting edge surface part (18), the peripheral tooth first rear cutting edge surface part (19) and the peripheral tooth second rear cutting edge surface part (20), wherein the peripheral tooth first rear cutting edge surface part (19) is positioned between the peripheral tooth front cutting edge surface part (18) and the peripheral tooth second rear cutting edge surface part (20) and forms a blade peripheral tooth front angle, a blade peripheral tooth rear angle I and a blade peripheral tooth rear angle II;
the angle of the peripheral tooth rake angle of the blade is as follows: l is1And S1Angle therebetween, wherein L1Is the shortest connecting line between the intersecting line of the first rear cutter face part (19) of the peripheral teeth and the front cutter face part (18) of the peripheral teeth and the axis of the cutter body, and the S is1The surface of the peripheral tooth front blade surface part (18) is located;
the first peripheral tooth clearance angle of the blade is as follows: l is2And S2Angle therebetween, wherein L2And L1Is vertically arranged, said S2The surface of the first rear knife surface part (19) of the peripheral teeth is located;
the peripheral tooth back angle of the blade is as follows: l is2And S3Wherein S is included angle therebetween, wherein2Is the surface of the second rear knife surface part (20) of the peripheral teeth.
8. The milling cutter structure for surface treatment according to claim 7, wherein the angle of the peripheral tooth rake angle of the cutting edge is: 10-15 degrees, and the first clearance angle of the peripheral teeth of the cutting edge is as follows: 10-15 degrees, and the peripheral tooth relief angle of the blade is as follows: 20 to 25 degrees.
9. The milling cutter structure for surface treatment according to claim 5, wherein the end tooth (11) has an end tooth front angle of 4 ° to 7 °, an end tooth back angle of one of 8 ° to 12 °, and an end tooth back angle of two of 15 ° to 20 °.
10. The milling cutter structure for surface treatment according to claim 1, wherein the angle of the edge gash angle is 40 ° to 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120232979.0U CN214978016U (en) | 2021-01-27 | 2021-01-27 | Milling cutter structure for surface treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120232979.0U CN214978016U (en) | 2021-01-27 | 2021-01-27 | Milling cutter structure for surface treatment |
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| CN214978016U true CN214978016U (en) | 2021-12-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114378345A (en) * | 2021-12-30 | 2022-04-22 | 株洲钻石切削刀具股份有限公司 | Milling cutter for machining and forming large chamfer forming surface |
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2021
- 2021-01-27 CN CN202120232979.0U patent/CN214978016U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114378345A (en) * | 2021-12-30 | 2022-04-22 | 株洲钻石切削刀具股份有限公司 | Milling cutter for machining and forming large chamfer forming surface |
| CN114378345B (en) * | 2021-12-30 | 2023-09-19 | 株洲钻石切削刀具股份有限公司 | Large-chamfer forming surface machining forming milling cutter |
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