CN219025963U

CN219025963U - Polygonal machining tool

Info

Publication number: CN219025963U
Application number: CN202223395438.3U
Authority: CN
Inventors: 刘孟辉; 王军波
Original assignee: Lifeng Precision Tool Zhejiang Co ltd
Current assignee: Lifeng Precision Tool Zhejiang Co ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-05-16
Anticipated expiration: 2032-12-16

Abstract

The utility model provides a polygonal machining tool, and belongs to the technical field of numerical control tools. The chip removing device solves the problems of poor chip removing effect, poor clamping stability and the like in the prior art. The chip removing device comprises a blade body, wherein a mounting hole is formed in the center of the blade body, the blade body comprises an upper end face, a lower end face and at least five side faces, each side face is in transition through an arc face, five vertex angles are formed in the upper end face and the lower end face, chip removing grooves are formed in the upper end face and the lower end face along the edge of the blade body, a plurality of chip removing structures are arranged in the chip removing grooves and correspond to the vertex angles one by one, each chip removing structure comprises a first chip removing top bulge facing the vertex angle and two protruding points respectively located on two sides of the first chip removing top bulge, and a second chip removing top bulge is arranged between two adjacent vertex angles in the chip removing grooves. The utility model has the advantages of good chip removal effect, stable clamping and the like.

Description

Polygonal machining tool

Technical Field

The utility model belongs to the technical field of numerical control cutters, and particularly relates to a polygonal machining cutter.

Background

The numerical control blade is a generic name of indexable turning blades, and is a mainstream product in the field of modern metal cutting application. The method is mainly applied to the fields of metal turning, milling, cutting grooving, thread turning and the like.

The SNMG120412 four-sided eight-edge blade is commonly used in the market at present, the traditional blade has poor chip removal effect due to the self structural reason, and the fixed span is smaller during clamping, so that the clamping stability is poor.

Disclosure of Invention

The object of the present utility model is to provide a polygonal machining tool which addresses the above-mentioned problems of the prior art.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides a polygon processing cutter, its characterized in that, includes the blade body, the center of blade body is provided with the mounting hole, the blade body includes up end, lower terminal surface and at least five sides, passes through the arc surface transition between every side, up end and lower terminal surface all are provided with five apex angles, up end and lower terminal surface all are provided with the chip groove along the edge of blade body, be provided with a plurality of chip breaking structures in the chip groove, chip breaking structure and apex angle one-to-one, chip breaking structure includes towards the first chip top of apex angle protruding and is located two bump on the protruding both sides in first chip top respectively, the chip groove is provided with the second chip top protruding between two adjacent apex angles.

The working principle of the utility model is as follows: during the use, install blade body to blade anchor clamps through the mounting hole, because pentagon design, fixed span during the clamping is bigger, and the clamping is more stable, and at the during operation, the iron fillings get into the chip groove, earlier through the cutting of first chip top protruding and two bumps, the cross-section thickness attenuation of iron fillings, the protruding further cutting of second chip top finally realizes the chip effect of collapsing, and the chip effect is good, effectively reduces the accumulation of iron fillings to reduce the wearing and tearing of blade body, prolonged life, reduced manufacturing cost.

In the polygonal processing cutter, each vertex angle is provided with a cutting unit, each cutting unit comprises an arc cutting edge and a straight cutting edge, each arc cutting edge is formed by intersecting an arc surface with an upper end surface or a lower end surface, and each straight cutting edge is formed by intersecting a side surface with the upper end surface or the lower end surface.

In the polygonal machining tool, each side surface comprises a first tool surface and a second tool surface, and the first tool surface and the second tool surface are formed by bending the middle parts of the corresponding side surfaces towards the mounting holes.

In the above polygonal machining tool, the angle of each of the vertex angles is ninety degrees.

In the polygonal machining tool, the relief angle of the insert body is zero degrees.

In the polygonal machining tool, the two protruding points are symmetrically arranged on two sides of the top protrusion of the first chip.

In the polygonal processing tool, the convex points are all round protrusions.

Compared with the prior art, the utility model has the advantages of good chip removal effect and stable clamping.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

FIG. 2 is a schematic view of the structure of the present utility model for processing the outer circumferential end surface.

FIG. 3 is a schematic view of the structure of the present utility model for machining an inner circular end face.

In the figure, 1, a blade body; 2. a mounting hole; 3. a side surface; 4. an upper end surface; 5. a chip removal groove; 6. a chip breaking structure; 7. a first chip top projection; 8. a bump; 9. a second chip top projection; 10. a cutting unit; 11. an arc cutting edge; 12. a straight cutting edge; 13. a first blade surface; 14. a second blade surface; 15. a top angle; 16. an arc surface.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1-3, the polygonal processing tool comprises a tool body 1, wherein a mounting hole 2 is formed in the center of the tool body 1, the tool body 1 comprises an upper end face 4, a lower end face and at least five side faces 3, each side face 3 is in transition through an arc face 16, the upper end face 4 and the lower end face are both provided with five vertex angles 15, chip grooves 5 are formed in the upper end face 4 and the lower end face along the edge of the tool body 1, a plurality of chip breaking structures 6 are arranged in the chip grooves 5, the chip breaking structures 6 are in one-to-one correspondence with the vertex angles 15, the chip breaking structures 6 comprise a first chip top protrusion 7 facing the vertex angles 15 and two salient points 8 respectively positioned on two sides of the first chip top protrusion 7, and a second chip top protrusion 9 is arranged between two adjacent vertex angles 15 of the chip breaking grooves 5; the upper end surface 4 portion and the lower end surface portion of the insert body 1 are identical and thus the lower end surface portion is not illustrated in the drawings.

Further, each vertex angle 15 is provided with a cutting unit 10, the cutting unit 10 comprises an arc cutting edge 11 and a straight cutting edge 12, the arc cutting edge 11 is formed by intersecting an arc surface 16 with the upper end surface 4 or the lower end surface, the straight cutting edge 12 is formed by intersecting a side surface 3 with the upper end surface 4 or the lower end surface, each side surface 3 comprises a first cutter surface 13 and a second cutter surface 14, and the first cutter surface 13 and the second cutter surface 14 are formed by bending the middle part of the corresponding side surface 3 towards the mounting hole 2; thus, each side surface 3 is divided into two surfaces, namely, a total of pentagons and ten edges and twenty edges, the utilization rate of the cutting edge is greatly improved, as shown in fig. 2 and 3, the two-purpose cutter can be realized, and the end surfaces of an inner circle and an outer circle can be machined at one station.

Further, the angle of each vertex angle 15 is ninety degrees; that is, the angle between the first rake surface 13 of one side surface 3 and the second rake surface 14 of the other side surface 3 is ninety degrees in the two adjacent side surfaces 3, and the right angle facilitates positioning when cutting and connection with a clamp.

Further, the back angle of the blade body 1 is zero degrees; the relief angle is the included angle between the rear surface of the blade body 1 and the cutting plane, as shown in fig. 2 and 3, and when the cutter is used for processing the end surfaces of the inner circle and the outer circle of parts such as flanges, the end surface can be regarded as the side surface 3 of the round table, and the design of the zero relief angle can not increase friction, so that the design of the zero relief angle improves the blade strength and has good durability.

Further, two salient points 8 are symmetrically arranged on two sides of the first chip top protrusion 7; the specification is uniform, and the production is convenient.

Further, the convex points 8 are all round bulges; it is possible to minimize friction between the iron pieces and each of the bumps 8 and prevent the iron pieces from melting and binding on the surface of the bumps 8.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although a number of terms are used more herein, the use of other terms is not precluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims

1. The utility model provides a polygon processing cutter, its characterized in that, includes blade body (1), the center of blade body (1) is provided with mounting hole (2), blade body (1) include up end (4), lower terminal surface and five at least sides (3), pass through arc surface (16) transition between every side (3), up end (4) and lower terminal surface all are provided with five apex angle (15), up end (4) and lower terminal surface all are provided with chip groove (5) along the edge of blade body (1), be provided with a plurality of chip breaking structures (6) in chip groove (5), chip breaking structures (6) and apex angle (15) one-to-one, chip breaking structures (6) are including first chip top protruding (7) towards apex angle (15) and two bump (8) that are located first chip top protruding (7) both sides respectively, chip breaking groove (5) are provided with second top protruding (9) between two adjacent apex angles (15).

2. A polygonal machining tool according to claim 1, characterized in that each of the top corners (15) is provided with a cutting unit (10), the cutting unit (10) comprising a circular arc cutting edge (11) and a straight cutting edge (12), the circular arc cutting edge (11) being formed by the intersection of a circular arc surface (16) with the upper end surface (4) or the lower end surface, the straight cutting edge (12) being formed by the intersection of a side surface (3) with the upper end surface (4) or the lower end surface.

3. A polygonal machining tool according to claim 1, wherein each side surface (3) comprises a first blade surface (13) and a second blade surface (14), the first blade surface (13) and the second blade surface (14) being formed by bending the middle of the corresponding side surface (3) towards the mounting hole (2).

4. A polygonal machining tool according to claim 3, wherein the angle of each of said top corners (15) is ninety degrees.

5. A polygonal machining tool according to claim 1, characterized in that the relief angle of the insert body (1) is zero degrees.

6. A polygonal machining tool according to claim 1, characterized in that two salient points (8) are symmetrically arranged on both sides of the first chip top projection (7).

7. A polygonal machining tool according to claim 1, characterized in that the bumps (8) are each provided as circular protrusions.