CN202212653U

CN202212653U - Replaceable small taper shank cutter system

Info

Publication number: CN202212653U
Application number: CN2011202912475U
Authority: CN
Inventors: 张凤鸣; 徐华鸣; 张嗣静
Original assignee: Zhengzhou Diamond Precision Manufacturing Co Ltd
Current assignee: Zhengzhou Diamond Precision Manufacturing Co Ltd
Priority date: 2011-08-11
Filing date: 2011-08-11
Publication date: 2012-05-09
Anticipated expiration: 2021-08-11

Abstract

The utility model discloses a Replaceable small taper shank cutter system. The replaceable small taper shank cutter system comprises a small taper shank cutter, wherein the small taper shank cutter is connected with an adapting handle through a dowel screw. The replaceable small taper shank cutter system is easy to install and operate, reliable to use and high in installing and fixing precision; the concentricity and the cutter replacing precision can be ensured to be less than 3 microns; the replaceable small taper shank cutter system is high in precision; and a reaming cutter or a milling cutter is allowed to be detached and replaced, so that high-precision reinstallation is realized, and repeated positioning is avoided.

Description

A kind of interchangeable conelet shaft chisel system

Technical field

The utility model belongs to the cut technical field of tools, particularly a kind of interchangeable conelet shaft chisel system.

Background technology

At present; In the cut field; Hollow short taper shank (HSK) is more and more universal, it than steep taper shank in precision, rigidity be applicable to high rotating speed and tool changing is convenient etc. that there is remarkable advantages the aspect, hollow short taper shank (HSK) formally announcement become the international standard handle of a knife; The BT handle of a knife is a kind of handle of a knife connection that general NC lathe (comprising machining center) is gone up widespread usage, and the tapering of BT handle of a knife is 7:24.

Modern cutting technology is regarded as handle of a knife and cutter clamping the important component part of cutting system; Concerning the performance of cutter working (machining) efficiency and the quality of machining accuracy; The general BT handle of a knife of ratio of precision that the short taper shank of HSK, the hollow taper shank of 7:24 connect has significant raising; The minimum gauge of the short taper shank of the HSK of standard is HSK32, and littler cutter does not then allow reamer or milling cutter to unload, and clamping precision, concentricity and tool changing precision are difficult to guarantee.

The utility model content

The purpose of the utility model provide a kind of simple to operate, use reliable, clamping precision is high interchangeable conelet shaft chisel system.

Be to realize above-mentioned purpose, the technical scheme of the utility model is: a kind of interchangeable conelet shaft chisel system, comprise the conelet shaft chisel, and said conelet shaft chisel links to each other with transfer handle through dowel screw.

Said dowel screw core is provided with cutting fluid channel, and the transfer handle core is provided with mesopore, and mesopore, cutting fluid channel are connected with the water injection hole of conelet shaft chisel.

The taper shank tapering of said conelet shaft chisel is 1:5.715, and the transfer handle end is provided with the taper hole that matches with taper shank, taper hole and taper shank match grinding, and the conelet shaft chisel contacts with the end face of transfer handle.

The taper shank end of said conelet shaft chisel is provided with symmetrical platform, and the taper hole bottom of transfer handle is provided with and the friction tight symmetrical boss of symmetrical platform clamp.

Said conelet shaft chisel is little taper-shank reamer, and its cutter head is welded with polycrystalline diamond or the cubic boron nitride composite sheet is made cutting tip, and place, the cutting plane straight line of cutting tip is lower than the knife bar center, and anterior angle a is 2 °～5 °, and front clearance b is 5 °～15 °; Being provided with a plurality of apopores with corresponding cutting tip on the knife bar, is 10 °～20 ° over against the apopore of cutting tip and the angle c of knife bar axis, and the angle d of apopore on the knife bar and knife bar axis is 25 °～30 °.

Said water injection hole front end is through copper rod sealing shutoff; Knife bar is axially arranged with gib block on the surface.

Said conelet shaft chisel is little taper-shank cutter; Its cutter head is welded with polycrystalline diamond or the cubic boron nitride composite sheet is made cutting tip; Corresponding cutting tip is provided with the apopore of symmetrical distribution, and the two pairs of apopores of symmetry and angle e, the f of knife bar axis are respectively 45 ° and 60 °.

Said cutting tip is provided with chamfered edge, and chamfered edge is 20 ° * 0.1～0.13.

Compared with prior art, the beneficial effect of the utility model is:

1, the utility model comprises the conelet shaft chisel, and the conelet shaft chisel links to each other with transfer handle through dowel screw, is applicable to the processing to small-porosity series, profiled holes series, small size face; Fitting operation is simple, uses reliably, and clamping precision is high; Can guarantee concentricity and tool changing precision less than 3 microns, the precision of tooling system is high, allows reamer or milling cutter tool to unload; Change cutter, realize that high accuracy reloads, avoid resetting.

2, the taper shank tapering of conelet shaft chisel is 1:5.715, and the transfer handle end is provided with the taper hole that matches with taper shank, and the taper hole precision of taper shank and transfer handle is high, and the connection of tapering can make things convenient for, hi-Fix, can realize axial location accurately, simple installation; Conelet shaft chisel end face contacts with the end face of transfer handle, and the surface roughness of two end faces reaches Ra0.2 μ m, and flatness reaches 0.002mm, and the contact of face face can improve reliability, strengthen axially connection precision, and can improve joint stiffness.

3, be provided with and the friction tight symmetrical boss of conelet shaft chisel symmetry platform clamp in the taper hole bottom of transfer handle, be used for location and clamping, when transfer handle connected with the conelet shaft chisel, symmetrical boss and symmetrical platform clamp tight fit prevented that the dowel screw rotation is loosening.

4, on the surface of knife bar, axially be provided with gib block, play the cutting guide effect, the shrinkage cavity phenomenon after can preventing to cut.

5, on the conelet shaft chisel, be provided with water injection hole and apopore, can effectively reduce cutting temperature, improve stock-removing efficiency; Apopore is symmetrically distributed, and apopore and knife bar axis have certain angle, can cool off the diverse location of cutting tip, reaches whole cooling effect, good cooling results.

6, robustness of the utility model and precision reach the rank of overall structure cutter; It is applicable to that the HSK handle of a knife connects, staight shank connects and the BT handle of a knife connects, but multiple high precision cutting tools such as clamping polycrystalline diamond (PCD), polycrystalline cubic boron nitride (PCBN) and coated cutting tool.

Description of drawings

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

Fig. 2 is the structural representation of the medium and small taper-shank reamer of the utility model;

Fig. 3 is water injection hole and an apopore radial distribution sketch map among Fig. 2;

Fig. 4 is a knife bar schematic cross-section among Fig. 2;

Fig. 5 is the structural representation of the medium and small taper-shank cutter of Fig. 1;

Fig. 6 is the left view of Fig. 5;

Fig. 7 is the A-A cutaway view among Fig. 5;

Fig. 8 is the structural representation of transfer handle among Fig. 1;

Fig. 9 is the left view of Fig. 8;

Figure 10 is the structural representation of dowel screw among Fig. 1.

The specific embodiment

As shown in Figure 1 interchangeable conelet shaft chisel system, it comprises conelet shaft chisel 1, conelet shaft chisel 1 links to each other with transfer handle 3 through dowel screw 2.

Conelet shaft chisel 1 can be little taper-shank reamer, also can be little taper-shank cutter.

Like Fig. 2, Fig. 3 and shown in Figure 4; Conelet shaft chisel 1 is specifically selected little taper-shank reamer 5 for use; Taper shank 51 taperings of little taper-shank reamer 5 are 1:5.715, and the surface roughness of taper shank 51 is Ra0.2 μ m, and the flatness of end face 53 is 0.002mm; Require and transfer handle 3 match grindings, reach 80% with red lead powder check applying degree.Be provided with symmetrical platform 52 in taper shank 51 ends, the cutter hub core is provided with water injection hole 54, and the front end of water injection hole 54 axially is provided with gib block 58 through copper rod 510 sealing shutoff on the surface of knife bar 57, play the cutting guide effect, and the shrinkage cavity phenomenon after can preventing to cut.Be welded with the thick polycrystalline diamond of 0.8mm or the cubic boron nitride composite sheet is made cutting tip 59 at little taper-shank reamer 5 cutter heads; Place, the cutting plane straight line of cutting tip 59 is lower than knife bar 57 center 0.11mm; The anterior angle a that forms is 2 °～5 °; Cutting tip 59 main cutting edge margin width are 0.2mm, and front clearance b is 5 °～15 °.In order to reduce cutting temperature; Improve stock-removing efficiency; On knife bar 57, be respectively equipped with apopore 55 and apopore 56 with corresponding cutting tip 59; Over against the apopore 56 of cutting tip 59 and the angle c of knife bar 57 axis is 10 °～20 °, and the apopore 55 on the knife bar 57 is 25 °～30 ° with the angle d of knife bar 57 axis.

In the utility model, the overall width of gib block 58 is 0.8mm, and in order to process balance, half partial width of gib block that faces polycrystalline diamond or polycrystalline cubic boron nitride composite sheet reaches 0.5mm.

Like Fig. 5, Fig. 6 and shown in Figure 7; Conelet shaft chisel 1 is specifically selected conelet shank milling cutter 6 for use, and it is a whole hard alloy, and taper shank 61 taperings of conelet shank milling cutter 6 are 1:5.715; The surface roughness of taper shank 61 is Ra0.2; The flatness of end face 63 is 0.002mm, requires and transfer handle 3 match grindings, reaches 80% with red lead powder check applying degree.Be provided with symmetrical platform 62 in taper shank 61 ends, the cutter hub core is provided with water injection hole 67.Conelet shank milling cutter 6 cutter heads are welded with polycrystalline diamond or the cubic boron nitride composite sheet is made cutting tip 64, and cutting tip 64 is provided with chamfered edge, and chamfered edge is 20 ° * 0.1～0.13.Corresponding cutting tip 64 is provided with the apopore 65 and apopore 66 of symmetrical distribution, and apopore 65 is 45 ° with the angle e of knife bar axis, and apopore 66 is 60 ° with the angle f of knife bar axis, and the diverse location with the cooling cutting tip reaches whole cooling effect.

Like Fig. 8 and shown in Figure 9, transfer handle 3 can avoid conelet shaft chisel 1 directly to connect with machine tool chief axis, and transfer handle 3 plays the transition anastomosis, and front end connects conelet shaft chisel 1, the rear end connects machine tool chief axis.Core at transfer handle 3 is provided with mesopore 31; The end of transfer handle 3 is provided with the taper hole 32 that matches with taper shank 51 or taper shank 61; Taper hole 32 and taper shank 51 or taper shank 61 match grindings, the end face 53 of little taper-shank reamer 5 or the end face 63 of conelet shank milling cutter 6 contact with the end face 34 of transfer handle 3.Be provided with symmetrical boss 33 with symmetrical platform 52 or symmetrical platform 62 clamping engagement in taper hole 32 bottoms of transfer handle 3; Be used for location and clamping; When transfer handle 3 connects with conelet shaft chisel 1; Symmetry boss 33 and symmetrical platform 52 or symmetrical platform 62 clamping engagement prevent that dowel screw 2 rotations are loosening.

Since the surface roughness affects of taper hole of transfer handle 3 32 and end face 34 axially with radially connection precision, therefore, the surface roughness of taper hole 32 is Ra0.2 μ m, the flatness of end face 34 is 0.002mm, reaches 80% through red lead powder check applying degree.The material of transfer handle 3 is whole hard alloys.

Shown in figure 10, dowel screw 2 is to connect standard component, connects conelet shaft chisel 1 and transfer handle 3, and the screw thread at dowel screw 2 two ends plays anastomosis.Core at dowel screw 2 is provided with cutting fluid channel 21, plays the water injection hole effect.

As shown in Figure 1, when the utility model used, at first, transfer handle 3 became as a whole with HSK handle of a knife 4 pyrocondensation clampings, and dowel screw 2 connects transfer handle 3 and little taper-shank reamer 5 then.The cutting fluid channel 21 of dowel screw 2, the mesopore 31 of transfer handle 3 are connected with the water injection hole 54 of little taper-shank reamer 5, to reduce cutting temperature.In like manner, also can on transfer handle 3, connect conelet shank milling cutter 6 through dowel screw 2.

The utility model is not only applicable to the HSK handle of a knife and connects, and is applicable to that equally staight shank connects and the BT handle of a knife connects yet.

Claims

1. an interchangeable conelet shaft chisel system comprises the conelet shaft chisel, it is characterized in that: said conelet shaft chisel links to each other with transfer handle through dowel screw.

2. interchangeable conelet shaft chisel as claimed in claim 1 system, it is characterized in that: said dowel screw core is provided with cutting fluid channel, and the transfer handle core is provided with mesopore, and mesopore, cutting fluid channel are connected with the water injection hole of conelet shaft chisel.

3. interchangeable conelet shaft chisel as claimed in claim 2 system; It is characterized in that: the taper shank tapering of said conelet shaft chisel is 1:5.715; The transfer handle end is provided with the taper hole that matches with taper shank, taper hole and taper shank match grinding, and the conelet shaft chisel contacts with the end face of transfer handle.

4. interchangeable conelet shaft chisel as claimed in claim 3 system, it is characterized in that: the taper shank end of said conelet shaft chisel is provided with symmetrical platform, and the taper hole bottom of transfer handle is provided with and the friction tight symmetrical boss of symmetrical platform clamp.

5. like arbitrary described interchangeable conelet shaft chisel system among the claim 1-4; It is characterized in that: said conelet shaft chisel is little taper-shank reamer; Its cutter head is welded with polycrystalline diamond or the cubic boron nitride composite sheet is made cutting tip; Place, the cutting plane straight line of cutting tip is lower than the knife bar center, and anterior angle a is 2 °～5 °, and front clearance b is 5 °～15 °; Being provided with a plurality of apopores with corresponding cutting tip on the knife bar, is 10 °～20 ° over against the apopore of cutting tip and the angle c of knife bar axis, and the angle d of apopore on the knife bar and knife bar axis is 25 °～30 °.

6. interchangeable conelet shaft chisel as claimed in claim 5 system, it is characterized in that: said water injection hole front end is through copper rod sealing shutoff; Knife bar is axially arranged with gib block on the surface.

7. like arbitrary described interchangeable conelet shaft chisel system among the claim 1-4; It is characterized in that: said conelet shaft chisel is little taper-shank cutter; Its cutter head is welded with polycrystalline diamond or the cubic boron nitride composite sheet is made cutting tip; Corresponding cutting tip is provided with the apopore of symmetrical distribution, and the two pairs of apopores of symmetry and angle e, the f of knife bar axis are respectively 45 ° and 60 °.

8. interchangeable conelet shaft chisel as claimed in claim 7 system, it is characterized in that: said cutting tip is provided with chamfered edge, and chamfered edge is 20 ° * 0.1～0.13.