CN213729395U

CN213729395U - Grooved knife blade with groove

Info

Publication number: CN213729395U
Application number: CN202021815964.9U
Authority: CN
Inventors: 李政平; 王英武; 马少荣; 马海东
Original assignee: AECC Harbin Dongan Engine Co Ltd
Current assignee: AECC Harbin Dongan Engine Co Ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-07-20
Anticipated expiration: 2030-08-26

Abstract

The utility model belongs to the lathe work field specifically is a take groove cutter blade of recess. A notch is formed in the straight edge of the grooved slotting tool blade. The number of the gaps is 1-2. The groove type of most shapes can be processed, the cutting force is reduced, and the cutting vibration phenomenon is improved. Under the condition of increasing the grooves, the cutting contact surface can be effectively reduced, and meanwhile, the processing condition of most groove types can be met.

Description

Grooved knife blade with groove

Technical Field

The utility model belongs to the lathe work field specifically is a take groove cutter blade of recess.

Background

At present, the groove cutter blades are all straight-edge R-angle type or spherical type cutter blades, wherein the cutting surfaces of the straight-edge R-angle type cutter blades are large, and the groove cutter blades are suitable for machining grooves with wide widths and small chamfers, but the cutting contact area is large, so that the vibration phenomenon is easy to occur due to large cutting force, and the surface machining quality is influenced. The spherical blade has good cutting vibration phenomenon, but cannot process a groove with a smaller chamfer angle.

SUMMERY OF THE UTILITY MODEL

In order to integrate the advantages and the disadvantages of the slotting tool with two shapes, a slotting tool blade needs to be designed, so that the slotting tool blade can be used for processing most of the shapes of the slotting tools, the cutting force is reduced, and the cutting vibration phenomenon is improved.

Technical scheme

A notch is formed in the straight edge of the grooved slotting tool blade. The angles of two sides of the opening are 90 degrees, and the middle connection part is a switching arc.

The number of the gaps is 1-2.

When the number of the openings is 1, the openings are arranged in the center of the straight edge of the blade.

And the length of the gap is one third of the straight edge of the blade.

When the number of the openings is 2, the openings are opened at one quarter and three quarters of the straight edge of the blade.

And the length of the gap is one fourth of the straight edge of the blade.

Technical effects

In order to achieve the purpose, on the basis of the existing straight-edge grooved cutter blade with the R-shaped angle, in order to reduce the cutting contact surface, the notch is ground on the straight edge of the grooved cutter blade, so that the cutting contact area is reduced, and the cutting vibration phenomenon is effectively improved. Wherein the number of the gaps is determined according to the condition that the length of the straight edge of the slot cutter blade is suitable for the size of the processed slot. As shown in fig. 1, the slot insert shapes of one slit and two slits, respectively, can effectively reduce the cutting contact surface by increasing the number of grooves, and can satisfy the processing conditions of most of the slots.

Drawings

FIG. 1 is a schematic view of 1 gapped blade;

fig. 2 is a schematic view of 2 gapped blades.

Detailed Description

The following we will further explain the present invention by combining the technical scheme with the attached drawings:

The number of the openings is 1-2, and the number of the openings is set according to the requirement.

When the number of the openings is 1, the openings are arranged in the center of the straight edge of the blade. The central position can better avoid uneven stress.

And the length of the gap is one third of the straight edge of the blade. Conventional design requirements.

When the number of the openings is 2, the openings are opened at one quarter and three quarters of the straight edge of the blade. And the positions of the openings are ensured to be distributed in a tie way.

And the length of the gap is one fourth of the straight edge of the blade.

The grooving tool blade is used for performing test machining on a deep groove of a part, the groove depth is about 70mm, the groove width is about 15mm, the structure of the part is shown in figure 2, the grooving tool blade with the width of 8mm is selected, two openings are ground on the straight edge of the grooving tool blade on the basis of an original blade, the original blade is used for machining before the openings are ground, large vibration lines are generated at the bottom of the machined groove due to cutting vibration, and after the grooving tool blade with the ground openings is used for machining the part, the surface luminosity of the deep groove is good and no vibration lines exist.

Claims

1. A grooved slotting cutter blade is characterized in that notches are formed in the straight edge of the blade, and the number of the notches is 1-2; the angles of two sides of the opening are 90 degrees, and the middle connection part is a switching arc.

2. The slot cutter blade with a groove according to claim 1, wherein when the number of the openings is 1, the opening is opened at the midpoint of the straight edge of the blade.

3. The grooved coulter blade of claim 1, wherein the gap is one-third the length of the straight edge of the blade.

4. The grooved slotting cutter blade according to claim 1 where when the number of the slits is 2, the slits open at one quarter and three quarters of the straight edge of the blade.

5. The grooved coulter blade of claim 1, wherein the gap is one-fourth the length of a straight edge of the blade.