CN201776489U

CN201776489U - Central water-discharging knife tool with reverse water discharge

Info

Publication number: CN201776489U
Application number: CN2010201663517U
Authority: CN
Inventors: 文立平
Original assignee: Shanghai Real Industrial Co Ltd
Current assignee: Shanghai Real Industrial Co Ltd
Priority date: 2010-04-21
Filing date: 2010-04-21
Publication date: 2011-03-30
Anticipated expiration: 2020-04-21

Abstract

The utility model relates to a central water-discharging knife tool for processing deep hole type parts, in particular to a central water-discharging knife tool with reverse water discharge. Two central water-discharging holes are arranged at the front end of the cutting part of the knife tool; two water-discharging holes spraying water forwards are arranged at the front part of the cutting part of the knife tool; and two water-discharging holes spraying water backwards are arranged at the back part of the cutting part. The technical problem that the chip removal is not smooth when the knife tool is used for cutting is solved, not only can the central water-discharging knife tool with the reverse water discharge be cooled sufficiently when being used for cutting, but also the chips can be removed adequately.

Description

A kind of center water outlet cutter with reverse water outlet

Technical field

The utility model relates to the middle edema with the heart involved water cutter that deep hole processing type part is used, a kind of center water outlet cutter with reverse water outlet.

Background technology

In field of machining, the deep hole that runs into some step types through regular meeting needs processing, and cylindricity, concentricity, roughness and some chamferings, the fillet dimensional requirement to each stepped hole is also very high usually in the type hole.Require extra high hole for roughness, our common way is to adopt reamer, roll extrusion cutter etc. just can satisfy the part requirement, but because if this part is simultaneously to chamfering, the words that the fillet dimensional requirement is high, this technology just requires the repetitive positioning accuracy of lathe very high, generally require the lathe repetitive positioning accuracy at 0.0005mm with interior (repetitive positioning accuracy of machine tool is generally more than 0.001mm), and this high-precision lathe is very expensive often, and this process efficiency is also very low, like this, we just can only use the one-shot forming of moulding aperture knife tool.

As shown in Figure 1, common moulding aperture knife tool, its center water-out manners (center apopore A) generally is to spray forward, like this will produce following problem:

If during 1 processing through hole, the hydraulic pressure that the center apopore ejects will be considered to be worth doing towards hole Di Chong, and the cutting edge of bottom is cutting this moment, and itself just having produced the aluminium bits will arrange backward, it will produce barrier effect to the aluminium bits that dash inward, the rear section step in hole produces a large amount of aluminium bits also in spray inward also in cutting simultaneously, and at this moment the aluminium bits from both direction are just all squeezed in the hole, bits row do not go out, just can only in the hole, spin, hole wall is scratched, influence roughness;

2, if during processing blind hole, the hydraulic pressure that the center apopore ejects will be considered to be worth doing equally at the bottom of the hole and be squeezed, and be blind hole this moment at the bottom of the hole, certainly be to arrange not go out inward, bits are goed ahead but the hydraulic pressure that the center apopore ejects is being forced aluminium again, this moment, the aluminium bits can only spray forward along the direction of hydraulic pressure, by the time aluminium is considered the bottom to be worth doing and is returned later on again, at this moment return next pressure after bounce-back at the bottom of the via hole, little a lot, the rear section step in hole is also in cutting simultaneously, and the cutting edge of stepped hole has bottled up aluminium bits row's trend backward, once more center hydraulic pressure has been reduced, the aluminium that so gets off bits are difficult to delivery port at short notice, cause a lot of aluminium bits just to remain in the hole, and hole wall is scratched, influence the roughness in hole, do not reach the part requirement.

The utility model content

The purpose of this utility model is to provide a kind of center water outlet cutter with reverse water outlet, for solving existing cutter not smooth technical problem of chip removal when cutting is used, can fully cool off fully chip removal again when using cutting.

For realizing above-mentioned utility model purpose, the technical solution of the utility model is:

A kind of center water outlet cutter with reverse water outlet, it is characterized in that: described front end in the Tool in Cutting part is opened two center apopores, have two apopores of spray forward in Tool in Cutting part front portion, have two apopores of water spray backwards at the cutting tip rear portion.

Described center water outlet cutter with reverse water outlet is characterized in that: the water outlet direction of the center apopore of the front end of described Tool in Cutting part and end face are 90 degree.

Compared with prior art, the beneficial effects of the utility model are:

The utility model cutter is because chip removal is effective, and working (machining) efficiency is also high a lot of than universal cutter.

Description of drawings

Fig. 1 is existing general cutter structure schematic diagram;

Fig. 2 is the utility model technology cutter structure schematic diagram;

Fig. 3 is the front end apopore structural representation of the utility model Tool in Cutting part.

The specific embodiment

See also Fig. 2-3, the utility model provides a kind of center water outlet cutter with reverse water outlet.As shown in the figure: described front end in the Tool in Cutting part is opened two center apopores 11, has two apopores 12 of spray forward in Tool in Cutting part front portion, has two apopores 13 of water spray backwards at the cutting tip rear portion.The water outlet direction of the center apopore 11 of the front end of described Tool in Cutting part and end face are 90 degree.

Operating position of the present utility model is as follows:

When the processing through hole, can not produce a large amount of aluminium bits and remain in the hole, because this center apopore will cut the aluminium bits separated into two parts that produces, a part is arranged inwardly, a part is towards effluxing, and this chip removal mode can very effectively will be cut the aluminium that produces and be considered to be worth doing outside the very fast tap.

When processing blind hole, also can merotomize the aluminium bits that several steps produce, the aluminium bits that allow the aperture step produce discharge earlier, and the bits of the aluminium the hole in are more successively toward effluxing then, are unlikely to the aluminium bits are got lodged in the hole to rub the scuffing hole wall.

The above is preferred embodiment of the present utility model only, is not to be used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should be technology category of the present utility model.

Claims

1. center water outlet cutter with reverse water outlet, it is characterized in that: described front end in the Tool in Cutting part is opened two center apopores (11), have two apopores (12) of spray forward in Tool in Cutting part front portion, have two apopores (13) of water spray backwards at the cutting tip rear portion.

2. the center water outlet cutter with reverse water outlet according to claim 1 is characterized in that: the water outlet direction of the center apopore (11) of the front end of described Tool in Cutting part and end face are 90 degree.