CN216065691U

CN216065691U - Cutter for ensuring roughness of conical surface forming part

Info

Publication number: CN216065691U
Application number: CN202122072711.8U
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: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-03-18
Anticipated expiration: 2031-08-31

Abstract

The utility model discloses a cutter for ensuring the roughness of a conical surface forming part, which comprises a cutting part and a handle part, wherein the cutting part is provided with a conical surface forming blade, a blade back and a shearing angle, the conical surface forming blade comprises a vertex angle blade, a forming blade, an arc blade, an end surface blade and a chamfer angle blade, the vertex angle blade is arranged at the foremost end of the cutting part, the forming blade is arranged between the vertex angle blade and the arc blade, the end surface blade is arranged between the arc blade and the chamfer angle blade, the rear cutter surface of the forming blade is a conical surface, the shearing angle is arranged on the conical surface, the blade back extends to the handle part from the chamfer angle blade, and a chip discharge groove extends to the handle part from the shearing angle. The design of the conical surface forming blade ensures that the cutting stress is relatively uniform when a workpiece is processed, the roughness of the whole surface is high, and the service life is prolonged.

Description

Cutter for ensuring roughness of conical surface forming part

Technical Field

The utility model relates to the technical field of cutters, in particular to a cutter capable of ensuring the roughness of a conical surface forming part.

Background

The requirement on the sealing performance of the part at the part machining part in the attached drawing 4 is high, the requirements on the roughness and the size are strict, and scratches and fine lines are not allowed, so that the requirements on the quality of the cutting edge of the cutter and the stability and consistency of the cutter during batch production are strict.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims to provide a cutter for preventing a machining forming part from shaking.

The technical scheme is as follows: in order to achieve the above object, the present invention provides a cutting tool for ensuring roughness of a conical surface forming portion, which includes a cutting portion and a shank portion, wherein the cutting portion is provided with a conical surface forming edge, a back of the tool and a shearing angle, the conical surface forming edge includes a vertex angle edge, a forming edge, an arc edge, an end surface edge and a chamfer angle edge, the vertex angle edge is disposed at the foremost end of the cutting portion, the forming edge is disposed between the vertex angle edge and the arc edge, the end surface edge is disposed between the arc edge and the chamfer angle edge, a rear tool surface of the forming edge is a conical surface, the conical surface is provided with the shearing angle, the back of the tool extends from the chamfer angle edge to the shank portion, and a chip discharge groove extends from the shearing angle to the shank portion.

Furthermore, an inner cooling hole is arranged on the conical surface, an inner cooling channel communicated with the inner cooling hole is arranged on the blade part and the handle part in a penetrating way,

furthermore, a chamfering edge is arranged on the cutting edge of the conical surface forming edge. The design of the chamfering edge is used for passivating the conical surface forming edge, the cutting edge of the cutter can become smoother, the edge breakage is greatly reduced, and the surface finish of a processed workpiece can be improved.

Further, the forming edge forms an included angle of 60 degrees with the horizontal central axis.

Further, the included angle formed by the vertex angle edge and the horizontal central axis is 70 degrees.

Further, the included angle formed by the chamfer edge and the horizontal central axis is 45 degrees.

Furthermore, the number of the conical surface forming blades is 2, and the conical surface forming blades are arranged in a manner of being centrosymmetric with the end surface of the blade part.

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

(1) according to the cutter for ensuring the roughness of the conical surface forming part, the shearing angle is increased at the conical surface part, the strength of the cutting edge is ensured to be enough under the condition that the cutting edge is ensured to be sharp enough, the cutting edge of the whole 60-degree forming edge is very uniform, the cutting stress is relatively uniform during processing, the roughness quality of the whole surface is relatively high, and the service life of the cutter is also prolonged.

(2) The utility model relates to a cutter for ensuring the roughness of a conical surface molding part,

the conical surface position goes out water on the back, and than the inslot goes out water, the cooling effect is better, can slow down cutter blade wearing and tearing, guarantees the sharpness of blade to it is stable to maintain conical surface processing roughness.

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 partial structural view of the blade of the present invention;

FIG. 4 is a schematic structural view of a portion of a part to be machined;

Detailed Description

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

The cutter for ensuring the roughness of the conical surface forming part comprises a cutting part 1 and a handle part 2, wherein the cutting part 1 is provided with a conical surface forming blade 11, a back of the blade 12 and a shearing angle 13, the conical surface forming blade 11 comprises a vertex blade 111, a forming blade 112, an arc blade 113, an end surface blade 114 and a chamfer blade 115, the vertex blade 111 is arranged at the foremost end of the cutting part 1, the forming blade 112 is arranged between the vertex blade 111 and the arc blade 113, the end surface blade 114 is arranged between the arc blade 113 and the chamfer blade 115, the rear blade surface of the forming blade 112 is a conical surface 11a, the shearing angle 13 is arranged on the conical surface 11a, the back of the blade 12 extends to the handle part 2 from the chamfer blade 115, and a chip discharge groove 14 extends to the handle part 2 from the shearing angle 13.

The conical surface 11a is provided with an inner cooling hole 3, and the blade part 1 and the handle part 2 are provided with an inner cooling channel 4 communicated with the inner cooling hole 3 in a penetrating way.

In this embodiment, the cutting edge of the tapered forming edge 11 is provided with a chamfering edge 11 b.

In this embodiment, the included angle between the vertex angle edge 111 and the horizontal central axis is 70 °.

In this embodiment, the forming edge 112 forms an angle of 60 ° with the horizontal central axis.

In this embodiment, the included angle between the chamfer edge 115 and the horizontal central axis is 45 °.

In this embodiment, the number of the tapered forming blades 11 is 2, and the tapered forming blades are arranged in a central symmetry manner on the end surface of the blade 1.

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 guarantee cutter of conical surface shaping position roughness which characterized in that: including cutting edge portion (1) and stalk portion (2), cutting edge portion (1) is equipped with conical surface shaping sword (11), back of a knife blade (12) and shearing angle (13), conical surface shaping sword (11) are including apex angle sword (111), shaping sword (112), circular arc sword (113), end face sword (114) and chamfer sword (115), apex angle sword (111) set up at the foremost end of cutting edge portion (1), and shaping sword (112) set up between apex angle sword (111) and circular arc sword (113), and end face sword (114) set up between circular arc sword (113) and chamfer sword (115), the back knife face of shaping sword (112) is conical surface (11 a), be equipped with shearing angle (13) on conical surface (11 a), back of a knife blade (12) extend to stalk portion (2) from chamfer sword (115), and chip groove (14) extend to stalk portion (2) from shearing angle (13).

2. The tool for ensuring the roughness of the conical surface forming part according to claim 1, wherein: the conical surface (11 a) is provided with an internal cooling hole (3), and the blade part (1) and the handle part (2) are provided with an internal cooling channel (4) communicated with the internal cooling hole (3) in a penetrating way.

3. The tool for ensuring the roughness of the conical surface forming part according to claim 1, wherein: and a back-off edge (11 b) is arranged on the cutting edge of the conical surface forming edge (11).

4. The tool for ensuring the roughness of the conical surface forming part according to claim 1, wherein: the included angle formed by the vertex angle edge (111) and the horizontal central axis is 70 degrees.

5. The tool for ensuring the roughness of the conical surface forming part according to claim 1, wherein: the included angle formed by the forming edge (112) and the horizontal central axis is 60 degrees.

6. The tool for ensuring the roughness of the conical surface forming part according to claim 1, wherein: the included angle formed by the chamfer edge (115) and the horizontal central axis is 45 degrees.

7. The tool for ensuring the roughness of the conical surface forming part according to claim 1, wherein: the number of the conical surface forming blades (11) is 2, and the conical surface forming blades are arranged in a manner of centrosymmetry with the end surface of the blade part (1).