CN205341960U

CN205341960U - Hole grooving cutter

Info

Publication number: CN205341960U
Application number: CN201620132376.2U
Authority: CN
Inventors: 代中华; 胡其林; 胡静
Original assignee: Chengdu Youtuo Youlian Technology Co Ltd
Current assignee: Chengdu Youtuo Youlian Technology Co Ltd
Priority date: 2016-02-22
Filing date: 2016-02-22
Publication date: 2016-06-29
Anticipated expiration: 2026-02-22

Abstract

The utility model discloses a hole grooving cutter, it includes cutter arbor (1) and tool bit (2), tool bit (2) install the one end in cutter arbor (1), tool bit (2) constitute by grinding portion (21) and knife tip (22) that set up in grinding portion (21), preceding terminal surface (23) bottom and the grinding portion (21) of knife tip (22) between be provided with one cutter relieving wall (24), rear end face (25) and the grinding portion (21) of knife tip (22) between be provided with a chip groove (26). The beneficial effects of the utility model are that: it has simple structure, the chip removal is of high quality and the grooving precision high.

Description

A kind of inner bore grooving cutter

Technical field

This utility model relates to thin wall small hole grooving cutter, particularly a kind of inner bore grooving cutter.

Background technology

Oil is a kind of thickness, dark brown liquid.There is petroleum storage upper crustal some areas.Main component is the mixture of various alkane, cycloalkane, aromatic hydrocarbon.The one-tenth oil machine reason of oil has biogenic deposit to become oil and petrochemical industry two kinds of theories of oil, and the former more widely accepts, it is believed that oil be ancient times ocean or lake in biology formed through very long evolution, belong to biogenic deposit and become oil, non-renewable；The latter thinks that oil is to be generated by the carbon of itself in the earth's crust, unrelated with biology, renewable.Oil is mainly used as fuel oil and gasoline, is also many chemical industries, such as the raw material of solution, chemical fertilizer, insecticide and plastics etc..

And along with the progress of science and technology, the consumption that makes of oil has occurred the lifting of expansion type, and be not applied on a large scale in productive life at new forms of energy, oil is still that an important energy, therefore the demand of oil is only augmented and is subtracted by country, and in oil exploitation, need to use various equipment, and these equipment are very high to the required precision of processing, and on parts, offer many connecting holes, and these link its apertures, hole are less, even the hole wall of some aperture also ratio is relatively thin, and will in these aperture undercut slots, will be extremely difficult, it is thus desirable to a kind of special inner bore grooving cutter.

Utility model content

The purpose of this utility model is in that to overcome the shortcoming of prior art, it is provided that a kind of simple in construction, the inner bore grooving cutter that chip removal quality is good and grooving precision is high.

The purpose of this utility model is achieved through the following technical solutions: a kind of inner bore grooving cutter, it includes knife bar and cutter head, described cutter head is arranged on one end of knife bar, described cutter head is made up of grinding part and the point of a knife being arranged on grinding part, it is provided with a cutter relieving wall bottom the front end face of described point of a knife and between grinding part, between rear end face and the grinding part of described point of a knife, is provided with a chip area.

Preferably, described grinding part is a circular arc, and the center of circle of circular arc is eccentric on the axial line of knife bar.

Preferably, the cutting anterior angle of described point of a knife is 20 °, and the back angle of point of a knife is 3 °.

Preferably, described chip area is an arc groove, and arc radius is 3mm.

This utility model has the advantage that inner bore grooving cutter of the present utility model, grinding part can free grinding by hand, it is made not interfere with aperture inwall, thus ensure that stablizing of hole diameter, point of a knife is provided with the cutting anterior angle of 20 ° and is provided with the chip area of arc, the cutting anterior angle of wide-angle and chip area all add the chip removal ability of cutting swarf, thus reducing the cutting swarf impact on point of a knife grooving, thus improve the precision of inner bore grooving.

Accompanying drawing explanation

Fig. 1 is schematic front view of the present utility model

Fig. 2 is left view schematic diagram of the present utility model

In figure, 1-knife bar, 2-cutter head, 21-grinding part, 22-point of a knife, 23-front end face, 24-cutter relieving wall, 25-rear end face, 26-chip area.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.

As depicted in figs. 1 and 2, a kind of inner bore grooving cutter, it includes knife bar 1 and cutter head 2, described cutter head 2 is arranged on one end of knife bar 1, described cutter head 2 is made up of grinding part 21 and the point of a knife 22 being arranged on grinding part 21, it is provided with a cutter relieving wall 24 bottom the front end face 23 of described point of a knife 22 and between grinding part 21, between rear end face 25 and the grinding part 21 of described point of a knife 22, is provided with a chip area 26.

In the present embodiment, described grinding part 21 is a circular arc, and the center of circle of circular arc is eccentric on the axial line of knife bar 1, grinding part 21 can manual grinding, it is ground to circular arc, its Main Function is to prevent grinding part and endoporus from interfering, thus ensure that stablizing of the size of endoporus, improves processing stability.

In the present embodiment, the cutting anterior angle of described point of a knife 22 is 20 °, cutting anterior angle can reduce the cutting resistance of cutter in the course of processing, the cutting anterior angle of 20 ° also can increase the chip removal ability of point of a knife simultaneously, the increase of chip removal ability, so that iron filings can quickly be discharged timely, thus reducing the iron filings impact on grooving, the back angle of point of a knife 22 is 3 °.

In the present embodiment, described chip area 26 is an arc groove, and arc radius is 3mm, and chip area 26 is arranged to arc groove, enhances point of a knife rigidity in working angles, not easy fracture, is simultaneously also beneficial in aperture the chip removal ability processed.

Although this utility model being described in detail with reference to previous embodiment; for a person skilled in the art; technical scheme described in foregoing embodiments still can be modified by it; or wherein portion of techniques feature is carried out equivalent replacement; all within spirit of the present utility model and principle; any amendment of being made, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.

Claims

1. an inner bore grooving cutter, it is characterized in that: it includes knife bar (1) and cutter head (2), described cutter head (2) is arranged on one end of knife bar (1), described cutter head (2) is made up of grinding part (21) and the point of a knife (22) being arranged on grinding part (21), it is provided with a cutter relieving wall (24) between front end face (23) bottom and grinding part (21) of described point of a knife (22), between rear end face (25) and grinding part (21) of described point of a knife (22), is provided with a chip area (26).

2. a kind of inner bore grooving cutter according to claim 1, it is characterised in that: described grinding part (21) is a circular arc, and the center of circle of circular arc is eccentric on the axial line of knife bar (1).

3. a kind of inner bore grooving cutter according to claim 1, it is characterised in that: the cutting anterior angle of described point of a knife (22) is 20 °, and the back angle of point of a knife (22) is 3 °.

4. a kind of inner bore grooving cutter according to claim 1, it is characterised in that: described chip area (26) is an arc groove, and arc radius is 3mm.