CN213033739U

CN213033739U - PCD high-precision boring and countersinking milling cutter

Info

Publication number: CN213033739U
Application number: CN202021932955.8U
Authority: CN
Inventors: 葛强
Original assignee: Ws Precision Tools Shanghai Co ltd
Current assignee: Ws Precision Tools Shanghai Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-04-23
Anticipated expiration: 2030-09-07

Abstract

The utility model provides a PCD high accuracy boring countersink milling cutter, wherein, PCD high accuracy boring countersink milling cutter's left end sword relief angle is 8 degrees, and the relief angle of all edges is 10 degrees, the radius of PCD high accuracy boring countersink milling cutter's knife tip circular arc is 2 mm. The utility model discloses PCD high accuracy boring countersink milling cutter adopts polycrystalline diamond PCD material, extremely low frictional force proportion, higher temperature resistant, high thermal conductivity, high durability, high anti physical wear, higher anti chemical wear, higher anti crescent wearing and tearing, high anti mechanical wear, high anti cold welding wearing and tearing etc. are combined many excellent properties. The clearance angle of the side edge of the PCD cutter is 10 degrees, so that the cutting force can be reduced on the premise of the strength and rigidity of the cutting edge, and the cutting is stable and smooth.

Description

PCD high-precision boring and countersinking milling cutter

Technical Field

The utility model relates to a milling cutter field, in particular to PCD high accuracy boring countersink milling cutter.

Background

In the prior art, the deep hole concave surface of an aluminum alloy hydraulic control valve structure, the deep hole concave surface of an aluminum alloy automobile part mechanism and the complex concave surface of other aluminum alloy parts all need high-speed and precise cutting of the deep hole concave surface and the complex concave surface by a PCD cutter.

The complex concave surface of the deep hole concave surface with good quality is ensured, and the precise, clear, smooth and clean surface quality is ensured, so that the precision assembly is facilitated, and the fatigue strength and the reliability are improved.

Although the aluminum alloy and the aluminum alloy material of the workpiece are soft in total, the aluminum alloy and the aluminum alloy material of the workpiece contain more silicon hard particles and are difficult to process, a cutter is easy to use and lose effectiveness due to physical and chemical wear, the processed workpiece is difficult to ensure higher size and shape precision, and the working difficulty is higher.

Therefore, the general cemented carbide insert cannot meet the requirements of high-speed precision cutting and long service life and durability.

In view of the above, a PCD high precision boring and countersinking cutter is developed by those skilled in the art, in order to overcome the above technical problems.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a PCD high accuracy boring countersink milling cutter in order to overcome the defect that carbide blade can not be competent in high-speed precision cutting and long-life durability among the prior art.

The utility model discloses a solve above-mentioned technical problem through following technical scheme:

the PCD high-precision boring and countersinking milling cutter is characterized in that the rear angle of a left end blade of the PCD high-precision boring and countersinking milling cutter is 8 degrees, the rear angle of a peripheral blade of the PCD high-precision boring and countersinking milling cutter is 10 degrees, and the radius of a tool nose arc of the PCD high-precision boring and countersinking milling cutter is 2 mm.

According to the utility model discloses an embodiment, six edge declination angles of PCD high accuracy boring and countersink milling cutter's left end are 0.5 degree inwards.

According to the utility model discloses an embodiment, one long edge overcenter 0.04mm in the six sword declination angles of left end.

According to the utility model discloses an embodiment, PCD high accuracy boring and countersink milling cutter's blade blunt radius is 0.006 mm.

According to the utility model discloses an embodiment, the opening of PCD high accuracy boring countersink milling cutter's cutter body chip-holding chip groove is 80 degrees.

According to an embodiment of the utility model, the circular arc radius in the tank bottom of cutter body chip-holding chip groove is 2.5 mm.

The utility model discloses an actively advance the effect and lie in:

the utility model discloses PCD high accuracy boring countersink milling cutter has following a great deal of advantage:

the polycrystalline diamond PCD material has extremely low friction ratio, high temperature resistance, high heat conductivity, high durability, high physical abrasion resistance, high chemical abrasion resistance, high crescent abrasion resistance, high mechanical abrasion resistance, high cold welding abrasion resistance and other comprehensive excellent performances. The clearance angle of the side edge of the PCD cutter is 10 degrees, so that the cutting force can be reduced on the premise of the strength and rigidity of the cutting edge, and the cutting is stable and smooth. Meanwhile, the cutting device has better cutting rigidity vibration reduction performance and certain cutting avoiding interference effect, and improves the cutting speed efficiency, the processing stability and the processing precision. The size and shape of the cut surface are ensured to be precise and delicate, a certain compressive stress is generated uniformly and stably by arranging chips, the surface fatigue strength and the corrosion resistance are improved, and the heat resistance and the oil sealing are facilitated.

The arc radius R2 mm of the PCD tool nose has good cutting rigidity, and meanwhile, the PCD tool can stably and sharply feed and cut, so that the quality of a high-precision machined surface of a hole groove of an aluminum alloy workpiece processed by precision and high efficiency is guaranteed, and the service life of the tool is very long.

And the deflection angle of the left end edge is 0.5 degrees, so that the polishing tool has a good polishing effect, has a certain function of reducing accumulated chips, and has good structural strength and small cutting force.

And the rear angle of the left end edge is 8 degrees, so that the cutting machine has a good cutting and smooth shaping effect, and the surface quality precision of the surface of a machined workpiece is improved.

Fifthly, the obtuse circle radius Rn0.006 mm of the cutting edge can reduce cutting sticky scraps, keep good rigidity strength of the cutting edge and keep the cutting efficiency and the cutting quality precision of the cutter.

Sixthly, the long blade passes through the center by 0.04mm, so that the blade is reamed completely, and the reverse cutting interference can be effectively avoided due to better structural rigidity and strength.

Seventhly, the opening of the chip containing and removing groove of the cutter body is 80 degrees, and the radius R of an inner circular arc at the groove bottom is 2.5 millimeters, so that the chip containing and removing groove is favorable for containing and removing chips, and the structure has good rigidity strength.

Drawings

The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which like reference numerals refer to like features throughout, and in which:

FIG. 1 is the utility model discloses PCD high accuracy boring countersink milling cutter's elevation.

FIG. 2 is the utility model discloses PCD high accuracy boring countersink milling cutter's left side view.

[ reference numerals ]

PCD high-precision boring and countersinking cutter 10

Left end edge relief angle a

Relief angle b of peripheral edge

Radius R1 of arc of nose

Left six edge deflection angles c

Radius Rn of blunt circle of cutting edge

Inner arc radius R2 of groove bottom

Distance d of long edge over center

Opening e of chip-containing and chip-removing groove of cutter body

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

Further, although the terms used in the present invention are selected from publicly known and used terms, some of the terms mentioned in the description of the present invention may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein.

Furthermore, it is required that the present invention is understood, not simply by the actual terms used but by the meaning of each term lying within.

FIG. 1 is the utility model discloses PCD high accuracy boring countersink milling cutter's elevation. FIG. 2 is the utility model discloses PCD high accuracy boring countersink milling cutter's left side view.

As shown in fig. 1 and 2, the present invention discloses a PCD high-precision boring and countersinking cutter, wherein a left end edge clearance angle a of the PCD high-precision boring and countersinking cutter 10 is 8 degrees, a peripheral edge clearance angle b is 10 degrees, and a radius R1 of a nose arc of the PCD high-precision boring and countersinking cutter 10 is 2 mm.

Preferably, the left six-edged rake angle c of the PCD high-precision boring and countersinking cutter 10 is 0.5 degrees inward. The distance d of one long edge of the six edge deflection angles c at the left end from the center is 0.04 mm.

Further, the cutting edge obtuse circle radius Rn of the PCD high-precision boring and countersinking milling cutter 10 is 0.006 mm.

Preferably, the opening e of the chip-removing groove of the PCD high-precision boring and countersinking cutter 10 is 80 degrees. The inner circular arc radius R2 of the groove bottom of the chip groove of the cutter body is 2.5 mm.

According to the structure description, the utility model discloses PCD high accuracy boring countersink milling cutter is used for high-speed accurate cutting, can high-speed accurate boring countersink mill the complicated concave surface of cutting processing aluminum alloy material work piece deep hole concave surface, reaches the requirement of size and shape accuracy and long durability.

To sum up, the utility model discloses PCD high accuracy boring countersink milling cutter has following a great deal of advantage:

Although particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are examples only and that the scope of the present invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are all within the scope of the invention.

Claims

1. The PCD high-precision boring and countersinking milling cutter is characterized in that the rear angle of a left end blade of the PCD high-precision boring and countersinking milling cutter is 8 degrees, the rear angle of a peripheral blade of the PCD high-precision boring and countersinking milling cutter is 10 degrees, and the radius of a tool nose arc of the PCD high-precision boring and countersinking milling cutter is 2 mm.

2. The PCD high-precision boring and countersinking cutter of claim 1, wherein the six cutting edges at the left end of the PCD high-precision boring and countersinking cutter are angled inward by 0.5 degrees.

3. The PCD high precision boring and countersinking cutter of claim 2, wherein one long edge of the six cutting edges at the left end is 0.04mm over the center.

4. The PCD high-precision boring and countersinking cutter according to claim 1, wherein the obtuse radius of the cutting edge of the PCD high-precision boring and countersinking cutter is 0.006 mm.

5. The PCD high-precision boring and countersinking cutter according to claim 1, wherein the opening of a chip-receiving and chip-removing groove of the PCD high-precision boring and countersinking cutter is 80 degrees.

6. The PCD high precision boring countersink cutter of claim 5, wherein the radius of the inner circular arc of the flute bottom of the chip-removing flutes of the cutter body is 2.5 mm.