CN207127288U - A kind of cylindrical drill - Google Patents

Abstract

A kind of cylindrical drill, including knife bar, fixture, cutter, high-pressure water pipe, guide pad and water-cooling groove.Described knife bar, fixture and high-pressure water pipe is hollow structure.The fixture is fixed on the front end of knife bar, and high-pressure water pipe is fixed on the rear end of knife bar.Cutter is fixed on the front end of fixture, and the distance between the top of cutter and fixture outer shroud are 10mm 12mm, and the distance between the bottom of cutter and fixture inner ring are 10 12mm.Water-cooling groove is in the rear side of cutter.The fixture is provided with oil groove and guide groove, and guide pad is filled in guide groove.The utility model is simple in construction, suitable for processing deep via, can provide operating efficiency significantly, through practical operation, process same hole, than the time that traditional diamond-making technique can save more than half；And cooled down in process, caused metal fragment greatly reduces, and processing the metal bar to get off can also recycle.

Description

A kind of cylindrical drill

Technical field

It the utility model is related to a kind of machining tool in hole, especially a kind of cylindrical drill.

Background technology

Current hole forming method, cut using boring machine or drilling machine mostly, substantial amounts of metal fragment can be produced, wasted Material also is difficult to sweep；And process velocity is very slow, particularly with the processing of large-scale deep hole, generally require to process up to a hundred hours It can complete.For processing deep via, cooling is very crucial, and the effect of cooling directly affects the efficiency of processing, existing Deep via machining tool cooling effect it is general, and if processing when cutter shake, precision can be influenceed.

Utility model content

For above-mentioned the deficiencies in the prior art, the utility model provides a kind of simple in construction, efficient cylindrical drill.

To achieve the above object, the technical solution adopted in the utility model is：A kind of cylindrical drill, including knife bar, fixture, knife Tool, high-pressure water pipe, guide pad and water-cooling groove.Described knife bar, fixture and high-pressure water pipe is hollow structure.The fixture is fixed on The front end of knife bar, high-pressure water pipe are fixed on the rear end of knife bar.Cutter is fixed on the front end of fixture, the top of cutter with outside fixture The distance between ring is 10mm-12mm, and the distance between the bottom of cutter and fixture inner ring are 10-12mm.Water-cooling groove is in The rear side of cutter.The fixture is provided with oil groove and guide groove, and guide pad is filled in guide groove.

Preferably, described knife bar is provided with antivibration pump.

Preferably, on described fixture, the rear side of cutter is provided with hole boring cutter, and its peak is higher 0.2- than the peak of cutter 0.4mm。

Preferably, described hole boring cutter material is high-speed tool steel.

Preferably, the peak of described guide pad is slightly below the peak of cutter.

Preferably, described oil groove and guide groove are distributed on the outer shroud of fixture.

The utility model is simple in construction, suitable for processing deep via, can provide operating efficiency significantly, through practical operation, Same hole is processed, than the time that traditional diamond-making technique can save more than half；And cooled down in process, it is caused Metal fragment greatly reduces, and processing the metal bar to get off can also recycle.Using this tool processes deep hole, compared to now Some drill bits, reduce the contact area in boring procedure, substantially increase the efficiency of drilling, and due to blade stability Well, lubricate, the hole drilled out by this instrument, hole wall is round and smooth, and finish can reach more than 6.3, can be complete by blank core Whole extracts a bar, and the diameter of bar is only smaller 20-30mm than the hole that needs are processed, and the scope of application is to need deep hole processing straight Metal stock of the footpath in more than 100mm.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the sectional view of clip cross-sectional.

Fig. 3 is fundamental diagram of the present utility model.

Fig. 4 is the enlarged drawing at A in Fig. 3.

In figure, 1- knife bars；2- fixtures；3- cutters；4- antivibration pumps；5- high-pressure water pipes；6- workpiece；7- metal bars；8- water coolings Groove；9- hole boring cutters；10- guide grooves；11- guide pads；12- oil grooves.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly, it is fully described by, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

As Figure 1-Figure 4：A kind of cylindrical drill, including knife bar 1, fixture 2, cutter 3, high-pressure water pipe 5, guide pad 11 and water Cold trap 8.Described knife bar 1, fixture 2 and high-pressure water pipe 5 is hollow structure.The fixture 2 is fixed on the front end of knife bar 1, high pressure Water pipe 5 is fixed on the rear end of knife bar 1.Cutter 3 is fixed on the front end of fixture 2, between the top of cutter 3 and the outer shroud of fixture 2 Distance is 10mm-12mm, and the distance between the bottom of cutter 3 and the inner ring of fixture 2 are 10-12mm.Water-cooling groove 8 is in cutter 3 Rear side.The fixture 2 is provided with oil groove 12 and guide groove 10, and guide pad 11 is filled in guide groove 10, the peak of guide pad The slightly below peak of cutter, it can avoid fixture that larger vibration occurs.Described knife bar 1 is provided with antivibration pump 4, can avoid knife Larger vibration occurs for bar.On described fixture, the rear side of cutter be provided with hole boring cutter, its peak is higher than the peak of cutter 0.2mm.Described oil groove 12 and guide groove 10 is distributed on the outer shroud of fixture.Oil groove 12 can moisten to cutter 3 and chip surface It is sliding.

One 6 meters long, a diameter of 200mm through hole is processed on workpiece, first from hollow knife bar 1 and fixture 2, Fixture 2 and knife bar 1 are fixed, both total lengths are 6.3 meters.Four cutters 3 are uniformly fixed on to the surrounding of fixture 2, pressed from both sides On tool 2, the rear side of cutter 3 processing water-cooling groove 8, the top and the distance between the outer shroud of fixture 2 h1 of cutter 3 are 10mm, cutter 3 Bottom and the distance between the inner ring of fixture 2 h2 be 12mm, this distance while guaranteeing to obtain maximum metal rod 7, Water cooling can be sufficiently carried out, and processes easily；High-pressure water pipe 5 is connected in the rear end of knife bar 1, then starts to process Deep via.While knife bar 1 works, water under high pressure is passed through, water under high pressure flows between knife bar 1 and metal bar 7, from water-cooling groove 8 Reserve, circulating cooling is carried out to cutter 3 and workpiece 6, while go out metal fragment；After drilling through, by the metal bar 7 in workpiece 6 Take out, complete the processing of deep via.Described knife bar 1 is provided with antivibration pump 4, and fixture 2 is provided with guide pad 11 and guide groove 10. The height of antivibration pump 4 is slightly below the peak for pressing from both sides cutter 3, because hole depth is larger, is shaken during brill if knife bar 1 is anti-raw It is dynamic, it can cause the position that cutter 3 bores that deviation occurs, it is sufficiently oily to may result in hole wall, antivibration pump 4, guide pad 11 and is oriented to Groove 10 can set multiple according to the depth of drilling.Fixture 2 is provided with hole boring cutter, the distance of its peak and the peak of cutter 3 H3 is 0.3mm, can be during deep hole machining, while bore hole, that is, drilling and bore hole carry out (processing in the past simultaneously Mode is first to drill, and hole drill is over bore hole again) as method saved the time, and can ensures the finish of hole wall, Er Qie During punching simultaneously bore hole, moreover it is possible to ensure the precision of bore hole.

Claims (6)

1. A kind of 1. cylindrical drill, it is characterised in that：Including knife bar, fixture, cutter, high-pressure water pipe, guide pad and water-cooling groove；Described Knife bar, fixture and high-pressure water pipe are hollow structure, and the fixture is fixed on the front end of knife bar, after high-pressure water pipe is fixed on knife bar End, cutter are fixed on the front end of fixture, and the distance between the top of cutter and fixture outer shroud are 10mm-12mm, and cutter is most The distance between lower end and fixture inner ring are 10-12mm, and water-cooling groove is in the rear side of cutter, and the fixture is provided with oil groove and led To groove, guide pad is filled in guide groove.
2. A kind of 2. cylindrical drill as claimed in claim 1, it is characterised in that：Described knife bar is provided with antivibration pump.
3. A kind of 3. cylindrical drill as claimed in claim 1, it is characterised in that：On described fixture, the rear side of cutter be provided with bore hole Knife, its peak are higher 0.2-0.4mm than the peak of cutter.
4. A kind of 4. cylindrical drill as claimed in claim 3, it is characterised in that：Described hole boring cutter material is high-speed tool steel.
5. A kind of 5. cylindrical drill as claimed in claim 1, it is characterised in that：The peak of described guide pad is slightly below cutter Peak.
6. A kind of 6. cylindrical drill as claimed in claim 1, it is characterised in that：Described oil groove and guide groove is distributed on the outer of fixture On ring.