CN214769210U

CN214769210U - Milling cutter and machining machine table using same

Info

Publication number: CN214769210U
Application number: CN202023076497.5U
Authority: CN
Inventors: 李永; 贺旭波; 岳进; 蒋益民; 李军旗
Original assignee: Jincheng Hongren Technology Co Ltd
Current assignee: Jincheng Fulian Hongren Technology Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-11-19
Anticipated expiration: 2030-12-18

Abstract

The application provides a milling cutter, including handle of a knife, sword neck and tool bit, the tool bit passes through the sword neck to be connected in the handle of a knife, and the tool bit includes: the connecting part is connected with the cutter neck; the cutting part is connected to the connecting part in a surrounding manner and comprises a cutting edge; the cutting edge includes preceding terminal surface and rear end face, and preceding terminal surface and rear end face set up in the both sides that the cutting edge was carried on the back mutually, and preceding terminal surface and rear end face incline with one side of cutting edge, and the inclination of preceding terminal surface is alpha 1, alpha 1's scope is 2 to 4, and the inclination of rear end face is alpha 2, alpha 2's scope is 2 to 4. The application also provides a machining machine table using the milling cutter. The utility model provides a milling cutter, through set up preceding terminal surface and the rear end face that has the same incline direction on the cutting edge, and the inclination angle scope of terminal surface and rear end face before controlling, avoided local thickness low excessively when making the cutter satisfy cutting strength, and then avoided milling cutter easy vibrations or the problem of tipping in the cutting process.

Description

Milling cutter and machining machine table using same

Technical Field

The application relates to the field of machining, in particular to a milling cutter and a machining machine table using the milling cutter.

Background

With the rapid development of consumer electronics, the structure of the consumer electronics is more precise, and for some precise structures, a small-sized groove needs to be formed by a thin T-shaped milling cutter. When a common T-shaped forming milling cutter with a thin structure is processed, a front end blade, a rear end blade and a side blade all participate in milling at the same time, but the existing milling cutter has uneven thickness and thinner partial area; and because the existing material has higher and higher strength and hardness, the existing milling cutter is very easy to generate adhesive abrasion and increase cutting force in the processing process, and further the milling cutter can generate the phenomena of vibration and even edge breakage, so that the cutting stability is poor.

How to solve the above problems needs to be considered by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the present application provides a milling cutter, including handle, sword neck and tool bit, the tool bit passes through the sword neck connect in the handle, the tool bit includes:

the connecting part is connected with the cutter neck;

the cutting part is connected to the connecting part in a surrounding manner and comprises a cutting edge;

the cutting edge includes preceding terminal surface and rear end face, preceding terminal surface reach the rear end face set up in the both sides that the cutting edge was carried on the back mutually, preceding terminal surface reach the rear end face to the same one side slope of cutting edge, the inclination of preceding terminal surface is alpha 1, alpha 1's scope is 2 to 4, the inclination of rear end face is alpha 2, alpha 2's scope is 2 to 4.

In a possible embodiment, the front end surface and the rear end surface are inclined along a straight line toward the same side of the cutting edge, and α 1 is equal to α 2.

In a possible embodiment, the front end surface is located on a side of the tool bit away from the tool neck, the rear end surface is located on a side of the tool bit close to the tool neck, and the front end surface and the rear end surface are not inclined to the connecting portion.

In one possible embodiment, the cutting edge further comprises a first cutting end and a second cutting end, the first cutting end has a thickness smaller than the second cutting end, and the front end surface and the rear end surface are inclined from the second cutting end to the first cutting end.

In one possible embodiment, the cutting edge further includes a first side surface and a second side surface, the first side surface and the second side surface are disposed between the front end surface and the rear end surface, the first side surface extends from the first cutting end to the second cutting end, and the second side surface is located at the second cutting end and connected to the first side surface.

In a possible embodiment, the first side surface and the second side surface are curved surfaces, the width of the first side surface gradually increases from the first cutting end to the second cutting end, and the first side surface is used for cutting materials.

In a possible embodiment, the cutting edge further comprises a triangular edge located at the intersection of the first side surface and the second side surface.

In a possible embodiment, the number of the cutting edges is plural, the plurality of the cutting edges are arranged at intervals, the first cutting end of one cutting edge is adjacent to the second cutting end of another adjacent cutting edge, and the first cutting end is arranged at an interval between the second cutting ends of two adjacent cutting edges.

In a possible embodiment, the cutting edge further includes two guiding grooves, two guiding grooves are disposed on opposite sides of the cutting edge, one guiding groove is formed by inclining the front end surface, and the other guiding groove is formed by inclining the rear end surface.

The application still provides a processing board, processing board includes clamping unit and drive unit, clamping unit presss from both sides tight aforementioned milling cutter the handle of a knife, the drive unit drive clamping unit drives milling cutter is rotatory in order to cut the material.

Compared with the prior art, the milling cutter has the advantages that the front end face and the rear end face with the same inclination direction are arranged on the cutting edge, the inclination angle range of the front end face and the inclination angle range of the rear end face are controlled, the cutter meets the cutting strength, meanwhile, the local thickness is prevented from being too low, and the problem that the milling cutter is prone to shaking or tipping in the cutting process is solved.

Drawings

Fig. 1 is a front view schematically illustrating a milling cutter according to an embodiment of the present application.

Fig. 2 is a schematic plan view of a milling cutter according to an embodiment of the present application along one side of a cutter head.

Fig. 3 is a partial perspective view of a milling cutter according to an embodiment of the present application.

Fig. 4 is a partial perspective view of a milling cutter according to an embodiment of the present application.

Fig. 5 is a schematic cross-sectional view of a tool tip of a milling cutter according to an embodiment of the present application.

Fig. 6 is a partial schematic view of a cutting edge of an embodiment of the present application, viewed in a direction perpendicular to the front end face.

Fig. 7 is a partial schematic view of a cutting edge of an embodiment of the present application, viewed in a direction perpendicular to the back end surface.

Description of the main elements

Milling cutter 10

Tool bit 11

Connecting part 111

Cutting part 112

Cutting edge 113

Lead-out slot 1130

First triangular edge 1131

Second triangular blade 1132

Front end face 114

Rear end face 115

First side 116

Second side 117

First cutting end 118

Second cutting tip 119

Knife neck 12

Knife handle 13

The following detailed description will further illustrate the present application in conjunction with the above-described figures.

Detailed Description

The following description will refer to the accompanying drawings to more fully describe the present disclosure. There is shown in the drawings exemplary embodiments of the present application. This application may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Like reference numerals designate identical or similar components.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Further, as used herein, "comprises" and/or "comprising" and/or "having," integers, steps, operations, components, and/or components, but does not preclude the presence or addition of one or more other features, regions, integers, steps, operations, components, and/or groups thereof.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Furthermore, unless otherwise defined herein, terms such as those defined in commonly used dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present application and will not be interpreted in an idealized or overly formal sense.

The following description of exemplary embodiments refers to the accompanying drawings. It should be noted that the components depicted in the referenced drawings are not necessarily shown to scale; and the same or similar components will be given the same or similar reference numerals or similar terms.

Embodiments of the present application will now be described in further detail with reference to the accompanying drawings.

Fig. 1 is a front view of a milling cutter 10 according to an embodiment of the present invention. The milling cutter 10 includes a cutter head 11, a neck 12, and a shank 13, the cutter head 11 being connected to the shank 13 through the neck 12.

In one embodiment, the milling cutter 10 may be a T-shaped end mill, the cutter head 11 is used for cutting materials, the cutter neck 12 drives the cutter head 11 to rotate, and the cutter handle 13 is connected to the cutter neck 12 and is in transmission connection with an external processing machine to drive the cutter neck 12 and the cutter head 11 to rotate. In one embodiment, the tool bit 11 and the tool holder 13 are respectively connected to two opposite ends of the tool neck 12; the cross-sectional area of the end part of the cutter neck 12 connected with the cutter head 11 is smaller than that of the cutter head 11, and the edge of the cutter head 11 exceeds the edge of the end part of the cutter neck 12 connected with the cutter head 11, so that materials of the cutter head 11 cannot contact the cutter neck 12 in the cutting process; the tool neck 12 is smoothly connected with the tool shank 13, and the connecting area of the tool neck 12 and the tool shank 13 can be designed to be a clearance structure, that is, the longitudinal section of the connecting area of the tool neck 12 and the tool shank 13 can be trapezoidal, and the width of the trapezoidal longitudinal section is gradually increased from the side far away from the tool shank 13 to the side close to the tool shank 13.

Fig. 2 is a schematic plan view of a milling cutter 10 according to an embodiment of the present invention along one side of a cutter head 11. The tool tip 11 includes a connecting portion 111 and a cutting portion 112, and the cutting portion 112 is disposed around the connecting portion 111.

In one embodiment, the cutting portion 112 includes a plurality of cutting edges 113, the cutting edges 113 may have the same structure, and the cutting edges 113 may have the same arrangement.

As shown in fig. 3 and 4, a partial perspective view of the milling cutter 10 according to an embodiment of the present invention is shown, and due to the existence of the placing angle block, for convenience of description, the description will be given with reference to fig. 3 and 4.

In one embodiment, the connecting portion 111 is connected to the neck 12, and the cutting edge 113 is connected to the neck 12 through the connecting portion 111.

The cutting edge 113 includes a front end surface 114, a rear end surface 115, a first side surface 116, and a second side surface 117. The front end surface 114 and the rear end surface 115 are disposed on opposite sides of the cutting edge 113, and the first side surface 116 and the second side surface 117 are disposed between the front end surface 114 and the rear end surface 115 and simultaneously connect the front end surface 114 and the rear end surface 115.

In one embodiment, the front face 114 is located on the side of the cutting head 11 away from the neck 12, and the rear face 115 is located on the side of the cutting head 11 near the neck 12.

In one embodiment, the front end surface 114 and the rear end surface 115 are inclined to the same side of the cutting edge 113, the inclination angle of the front end surface 114 is α 1, α 1 ranges from 2 ° to 4 °, the inclination angle of the rear end surface 115 is α 2, and α 2 ranges from 2 ° to 4 °. In the present embodiment, the front end surface 114 and the rear end surface 115 are inclined along a straight line to the same side of the cutting edge 113, and α 1 and α 2 may be equal. In the present embodiment, the inclination angles of the front end surface 114 and the rear end surface 115 may be inclination angles of the front end surface 114 and the rear end surface 115 with respect to a plane on which a center line of the cutting edge 113 perpendicular to the thickness direction of the cutting edge 113 is located, and the front end surface 114 and the rear end surface 115 may be symmetrical with respect to the plane on which the center line is located.

In one embodiment, the cutting blade 113 further includes two guiding grooves 1130, the two guiding grooves 1130 are disposed on opposite sides of the cutting blade 113, one guiding groove 1130 is formed by inclining the front end surface 114, and the other guiding groove 1130 is formed by inclining the rear end surface 115. It will be understood that the front end surface 114 is inclined and has a recess with the connecting portion 111, the recess is one of the guiding-out recesses 1130, and the rear end surface 115 is inclined and has a recess with the connecting portion 111, the recess is the other guiding-out recess 1130.

In one embodiment, the first side surface 116 and the sixth side surface 117 connect side edges constituting the cutting edge 113, which side edges may participate in cutting together with the front end surface 114 and the rear end surface 115.

By enabling the front end surface 114 and the rear end surface 115 to have the same inclination direction, the problems of vibration, cutter breakage and the like which are possibly caused by the fact that the thickness of the middle end of the cutting edge 113 is smaller than the thicknesses of the two sides due to the fact that the front end surface 114 and the rear end surface 115 are inclined in a crossed mode are avoided; meanwhile, the inclination angle α 1 of the front end surface 114 is in a range of 2 ° to 4 °, the inclination angle α 2 of the rear end surface 115 is in a range of 2 ° to 4 °, the overall thickness of the cutting edge is uniform, and the guide groove 1130 reserves a sufficient chip removal space for facilitating cutting.

In one embodiment, the front end surface 114 and the rear end surface 115 are not inclined to the connecting portion 111, that is, the thinned region is not extended to the connecting portion 111 during the process of forming the inclination angles of the front end surface 114 and the rear end surface 115, so as to enhance the strength of the milling cutter 10.

The cutting edge 113 further includes a first cutting end 118 and a second cutting end 119, where the first cutting end 118 and the second cutting end 119 respectively correspond to two opposite ends of the cutting edge 113, where the first cutting end 118 may be an end of the cutting edge 113 that first contacts the material, and the second cutting end 119 may be an end of the cutting edge 113 that last contacts the material, or the second cutting end 119 may be an end of the cutting edge 113 that does not contact the material.

In the present embodiment, the plurality of cutting edges 113 are disposed at intervals, the first cutting end 118 of one cutting edge 113 is adjacent to the second cutting end 119 of another adjacent cutting edge 113, and one first cutting end 118 is disposed at an interval between the second cutting ends 119 of two adjacent cutting edges 113, that is, the plurality of cutting edges 113 are arranged in the same structure and arrangement manner along the same rotation direction.

In one embodiment, the front end surface 114 and the rear end surface 115 are inclined from the second cutting end 119 to the first cutting end 118, and the thickness of the first cutting end 118 is smaller than that of the second cutting end 119.

In one embodiment, the first side 116 extends from a first cutting end 118 to a second cutting end 119, and the second side 117 is located at the second cutting end 119 and is connected to the first side 116. In this embodiment, the first side surface 116 and the second side surface 117 are curved surfaces, and the width of the first side surface 116 gradually increases from the first cutting end 118 to the second cutting end 119.

Fig. 5 is a schematic cross-sectional view of a cutting head 11 of a milling cutter 10 according to an embodiment of the present application.

The diameter of a concentric circle in which the cross section of the cutter head 11 is located is D, and the core diameter D4 of the cutter head 11 ranges from 0.45D to 0.55D to secure the cutting strength of the milling cutter 10.

Referring also to FIG. 1, the width of the neck 12 is JD, which is less than D.

As shown in fig. 6, a partial schematic view of the cutting edge 113 is shown when the cutting edge 113 is viewed in a direction perpendicular to the front end surface 114 according to an embodiment of the present invention.

The cutting edge 113 further includes a first triangular edge 1131, the first triangular edge 1131 is located at the intersection of the first side surface 116 and the second side surface 117, and the first triangular edge 1131 can be used for cutting materials.

In one embodiment, the length of the boundary line (margin) between the first triangular edge 1131 and the first side surface 116 is L3E, and the length of the boundary line (margin) between the first triangular edge 1131 and the second side surface 117 is L2E. The first triangular edge 1131 has a cutting depth L4E during cutting, and L4E may have a range of 0.4 (D-JD).

In one embodiment, L2E may range from 0.04D to 0.06D, and L3E may range from 0.04D to 0.06D.

As shown in fig. 7, a partial view of the cutting edge 113 is shown when the cutting edge 113 is viewed in a direction perpendicular to the rear end surface 115 according to an embodiment of the present invention.

Cutting edge 113 also includes second triangular edge 1132, and second triangular edge 1132 is located the juncture of first side 116 and second side 117, and second triangular edge 1132 can be used to cut material.

In one embodiment, the length of the boundary line (margin) between the second triangular edge 1132 and the first side surface 116 is L3, and the length of the boundary line (margin) between the second triangular edge 1132 and the second side surface 117 is L2. The second triangular edge 1132 may have a cutting depth L4 during cutting, and L4 may have a range of 0.4 (D-JD).

In one embodiment, L2 may range from 0.04D to 0.06D, and L3 may range from 0.04D to 0.06D.

In the present embodiment, the first triangular edge 1131 and the second triangular edge 1132 together form a triangular edge of the cutting edge 113, and the first triangular edge 1131 and the second triangular edge 1132 may have the same shape and size.

The application still provides a processing board, processing board includes clamping unit and drive unit, clamping unit presss from both sides tight aforementioned milling cutter 10's handle of a knife 13, the drive unit drive clamping unit drives milling cutter 10 rotation in order to cut the material.

Hereinbefore, specific embodiments of the present application are described with reference to the drawings. However, those skilled in the art will appreciate that various modifications and substitutions can be made to the specific embodiments of the present application without departing from the spirit and scope of the application. Such modifications and substitutions are intended to be within the scope of the present application.

Claims

1. The utility model provides a milling cutter, includes handle of a knife, sword neck and tool bit, the tool bit passes through the sword neck connect in the handle of a knife, its characterized in that, the tool bit includes:

the connecting part is connected with the cutter neck;

2. The milling cutter according to claim 1, wherein the front end surface and the rear end surface are inclined along a straight line toward the same side of the cutting edge, and α 1 is equal to α 2.

3. The milling cutter according to claim 1, wherein the front end surface is located on a side of the insert remote from the neck, the rear end surface is located on a side of the insert close to the neck, and the front end surface and the rear end surface are not inclined to the connecting portion.

4. The milling cutter according to claim 1, wherein the cutting edge further comprises a first cutting end and a second cutting end, the first cutting end having a thickness less than a thickness of the second cutting end, the front end surface and the rear end surface being inclined from the second cutting end to the first cutting end.

5. The milling cutter according to claim 4, wherein the cutting edge further comprises a first side surface and a second side surface, the first side surface and the second side surface being disposed between the front end surface and the rear end surface, the first side surface extending from the first cutting end to the second cutting end, the second side surface being located at the second cutting end and being connected to the first side surface.

6. The milling cutter according to claim 5, wherein the first side surface and the second side surface are curved surfaces, the first side surface having a width gradually increasing from the first cutting end to the second cutting end, the first side surface being for cutting the material.

7. The milling cutter according to claim 5, wherein the cutting edge further comprises a triangular edge located at an intersection of the first and second side surfaces.

8. The milling cutter according to claim 4, wherein the number of the cutting edges is plural, a plurality of the cutting edges are provided at intervals, the first cutting end of one cutting edge is adjacent to the second cutting end of another adjacent cutting edge, and one first cutting end is provided at an interval between the second cutting ends of two adjacent cutting edges.

9. The milling cutter according to claim 1, wherein the cutting edge further comprises two lead-out grooves, two of the lead-out grooves being provided on opposite sides of the cutting edge, one of the lead-out grooves being formed by the leading end surface being inclined, and the other lead-out groove being formed by the trailing end surface being inclined.

10. A machining machine table, comprising a clamping unit and a driving unit, wherein the clamping unit clamps the shank of the milling cutter according to any one of claims 1 to 9, and the driving unit drives the clamping unit to rotate the milling cutter so as to cut a material.