CN215880158U

CN215880158U - double-R-angle cutting edge reamer for machining high-requirement holes

Info

Publication number: CN215880158U
Application number: CN202121966551.5U
Authority: CN
Inventors: 李振丰; 奚旭东; 孔小波
Original assignee: Suzhou Antima Cutting Tool Technology Co ltd
Current assignee: Suzhou Antima Cutting Tool Technology Co ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-02-22
Anticipated expiration: 2031-08-20

Abstract

The utility model discloses a double-R-angle cutting edge reamer for machining high-requirement holes, which comprises an edge part, a clearance and a handle part, wherein the clearance is arranged between the edge part and the handle part, the head part of the edge part is provided with a plurality of double-R-angle cutting edges, a knife back extends to the neck part of the edge part from the double-R-angle cutting edges, the knife back is provided with a cutting edge band, and a chip discharge groove is formed between every two adjacent knife backs. Due to the design of the double-R-angle cutting edge, the cutting edge is smooth, chip removal is smooth, the wear resistance is good, and better hole tolerance and surface quality can be obtained through a coarse reaming mode and a fine reaming mode.

Description

double-R-angle cutting edge reamer for machining high-requirement holes

Technical Field

The utility model relates to the technical field of cutters, in particular to a double-R-angle cutting edge reamer for machining high-requirement holes.

Background

For a workpiece material with higher hardness, a cutter needs larger cutting force when being used for processing the workpiece material, so that the abrasion of the cutter is more aggravated; in addition, during hole machining, the tolerance requirement of the hole reaches H7, and simultaneously, the requirements on roughness, roundness and verticality are very high, and the requirements cannot be met easily due to the requirement on the size to be machined because the cutter is seriously worn in the cutting process of the cutter.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims to provide a double-R-angle cutting edge reamer for machining a high-requirement hole.

The technical scheme is as follows: in order to achieve the purpose, the reamer with the double R-angle cutting edges for machining the high-requirement holes comprises an edge part, a clearance and a handle part, wherein the clearance is arranged between the edge part and the handle part, the head part of the edge part is provided with a plurality of double R-angle cutting edges, a knife back extends to the neck part of the edge part from the double R-angle cutting edges, the knife back is provided with a cutting edge band, and a chip removal groove is formed between every two adjacent knife backs.

Further, the number of the double-R-angle cutting edges is 6, and the double-R-angle cutting edges are symmetrically arranged at the end part of the edge part.

Further, the double-R-angle cutting edge comprises a first arc edge and a second arc edge, and the radius of the first arc edge is smaller than that of the second arc edge.

Further, the head and the neck of the blade part are provided with arc transition parts.

Further, the diameter of the blade portion gradually decreases from the head portion to the neck portion.

Furthermore, a transition connecting section is arranged between the clearance and the handle part.

Further, the blade part, the clearance and the handle part are integrally formed and are designed coaxially.

According to the technical scheme, the utility model has the beneficial effects that:

according to the reamer with the double R-angle cutting edges for machining the high-requirement holes, due to the design of the double R-angle cutting edges, the cutting edges are flat, chip removal is smooth, the wear resistance is good, and better hole tolerance and surface quality can be obtained through a rough-finish reaming mode.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic end view of the present invention;

fig. 3 is a schematic structural view of the blade of the present invention.

Fig. 4 is a schematic structural view of a double R-angle cutting edge of the present invention.

Detailed Description

The utility model is further elucidated with reference to the drawings and the embodiments.

The reamer with the double R-angle cutting edges for machining high-requirement holes as shown in fig. 1-4 comprises an edge part 1, a clearance 2 and a handle part 3, wherein the clearance 2 is arranged between the edge part 1 and the handle part 3, a plurality of double R-angle cutting edges 11 are arranged at a head part 1a of the edge part 1, a knife back 12 extends to a neck part 1b of the edge part 11 from the double R-angle cutting edges 11, a cutting edge 13 is arranged on the knife back 12, and a chip discharge groove 14 is arranged between adjacent knife backs 12.

The number of the double-R angle cutting edges 11 is 6, and the double-R angle cutting edges are symmetrically arranged at the end part of the blade part 1.

In this embodiment, the double-R corner cutting edge 11 includes a first arc edge 111 and a second arc edge 112, and the radius of the first arc edge 111 is smaller than that of the second arc edge 112.

In the present embodiment, the head 1a and the neck 1b of the blade 1 are provided with an arc-shaped transition portion 15.

The diameter of the blade 1 in this embodiment is gradually reduced from the head 1a to the neck.

In this embodiment, a transition connecting section 16 is disposed between the clearance 2 and the handle 3.

In the embodiment, the blade 1, the clearance 2 and the handle 3 are integrally formed and coaxially designed.

The examples are given solely for the purpose of illustration and are not to be construed as limitations of the present invention, as various equivalents will occur to those skilled in the art upon reading the present invention and are intended to be within the scope of the utility model as defined in the claims appended hereto.

Claims

1. The utility model provides a two R angle cutting edge reamers in processing high requirement hole which characterized in that: including cutting part (1), keep away sky (2) and stalk portion (3), keep away sky (2) and set up between cutting part (1) and stalk portion (3), the head of cutting part (1) is equipped with a plurality of two R angle cutting edges (11), and back of a knife blade (12) extend to the neck of cutting part (1) from two R angle cutting edges (11), be equipped with land (13) on back of a knife blade (12), be equipped with chip groove (14) between adjacent back of a knife blade (12).

2. The double-R-angle cutting edge reamer for machining high-requirement holes according to claim 1, wherein: the number of the double-R-angle cutting edges (11) is 6, and the double-R-angle cutting edges are symmetrically arranged at the end part of the blade part (1).

3. The double-R-angle cutting edge reamer for machining high-requirement holes according to claim 1, wherein: the double-R-angle cutting edge (11) comprises a first arc edge (111) and a second arc edge (112), and the radius of the first arc edge (111) is smaller than that of the second arc edge (112).

4. The double-R-angle cutting edge reamer for machining high-requirement holes according to claim 1, wherein: the head and the neck of the cutting part (1) are provided with arc transition parts (15).

5. The double-R-angle cutting edge reamer for machining high-requirement holes according to claim 1, wherein: the diameter of the blade part (1) is gradually reduced from the head to the neck.

6. The double-R-angle cutting edge reamer for machining high-requirement holes according to claim 1, wherein: a transition connecting section (16) is arranged between the clearance (2) and the handle part (3).

7. The double-R-angle cutting edge reamer for machining high-requirement holes according to claim 1, wherein: the cutting part (1), the clearance (2) and the handle part (3) are integrally formed and are coaxially designed.