CN102284875B - Changeable small-taper shank cutter system - Google Patents
Changeable small-taper shank cutter system Download PDFInfo
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- CN102284875B CN102284875B CN2011102299067A CN201110229906A CN102284875B CN 102284875 B CN102284875 B CN 102284875B CN 2011102299067 A CN2011102299067 A CN 2011102299067A CN 201110229906 A CN201110229906 A CN 201110229906A CN 102284875 B CN102284875 B CN 102284875B
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Abstract
The invention discloses a changeable small-taper shank cutter system which comprises a small-taper shank cutter, wherein the small-taper shank cutter is connected with a transfer handle through a double-head screw. The cutter system is simple to mount and operate, reliable to use and high in clamping precision and can ensure the concentricity and ensure that the cutter change precision is less than 3 microns, the precision of the cutter system is high, the cutter of a reaming cutter or a milling cutter is detachable and can be replaced, the re-mounting with high precision is realized and the repeated positioning can be avoided.
Description
Technical field
The invention belongs to the machining technical field of tools, particularly a kind of changeable small-taper shank cutter system.
Background technology
At present, in the machining 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 obvious advantage aspect, hollow short taper shank (HSK) formally announcement become the international standard handle of a knife; The BT handle of a knife is generally a kind of handle of a knife connection of application on general NC lathe (comprising machining center), and the tapering of BT handle of a knife is 7:24.
Modern cutting technology is considered as handle of a knife and cutter clamping the important component part of cutting system, relation the performance of tool sharpening 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 HSK of standard is HSK32, again little cutter does not allow reamer or milling cutter to unload, and clamping precision, concentricity and tool changing precision are difficult to guarantee.
Summary of the invention
The purpose of this invention is to provide a kind of simple to operate, use the changeable small-taper shank cutter system reliable, that clamping precision is high.
For achieving the above object, technical scheme of the present invention is: a kind of changeable small-taper shank cutter system, comprise small taper shank cutter, and described small taper shank cutter is connected with transfer handle by dowel screw.
Described 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 small taper shank cutter.
The taper shank tapering of described small taper shank cutter 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 small taper shank cutter contacts with the end face of transfer handle.
The taper shank end of described small taper shank cutter 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.
Described small taper shank cutter is little taper-shank reamer, and its cutter head is welded with polycrystalline diamond or cubic boron nitride composite piece 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 °; On knife bar, with corresponding cutting tip, being provided with a plurality of apopores, is 10 °～20 ° over against the apopore of cutting tip and the angle c of knife bar axis, and the angle d of the apopore on knife bar and knife bar axis is 25 °～30 °.
Described water injection hole front end is by the copper rod sealing blocking; Knife bar is axially arranged with gib block on surface.
Described small taper shank cutter is little taper-shank cutter, its cutter head is welded with polycrystalline diamond or cubic boron nitride composite piece is made cutting tip, corresponding cutting tip is provided with symmetrical apopore, and angle e, the f of symmetrical two pairs of apopores and knife bar axis are respectively 45 ° and 60 °.
Described cutting tip is provided with chamfered edge, and chamfered edge is 20 ° * 0.1～0.13.
Compared with prior art, beneficial effect of the present invention is:
1, the present invention includes small taper shank cutter, small taper shank cutter is connected with transfer handle by dowel screw, is applicable to the processing for small-porosity series, profiled holes series, small size face, and fitting operation is simple, use reliable, clamping precision is high, can guarantee that concentricity and tool changing precision are less than 3 microns, and the precision of tooling system is high, allow reamer or milling cutter tool to unload, change cutter, realize that high accuracy reloads, and avoids resetting.
2, the taper shank tapering of small taper shank cutter 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 facilitate, hi-Fix, can realize axial location accurately, simple installation; The small taper shank cutter 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 plane-plane contact can improve reliability, strengthen axially connection precision, and can improve joint stiffness.
3, in the taper hole bottom of transfer handle, be provided with and the friction tight symmetrical boss of the symmetrical platform clamp of small taper shank cutter, for location and clamping, when transfer handle connected with small taper shank cutter, 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 from cutting.
5, on small taper shank cutter, be provided with water injection hole and apopore, can effectively reduce cutting temperature, improve stock-removing efficiency; Apopore is symmetrical, and apopore and knife bar axis have certain angle, and diverse location that can cooling cutting tip, reach whole cooling effect, good cooling results.
6, robustness of the present invention and precision reach the rank of overall structure cutter, it is applicable to, and the HSK handle of a knife connects, staight shank connects and the BT handle of a knife connects, but the multiple high precision cutting tools such as clamping polycrystalline diamond (PCD), polycrystalline cubic boron nitride (PCBN) and coated cutting tool.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of the medium and small taper-shank reamer of the present invention;
Fig. 3 be in Fig. 2 water injection hole and outlet water orifice diameter to distribution schematic diagram;
Fig. 4 is knife bar schematic cross-section in 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 in Fig. 5;
Fig. 8 is the structural representation of transfer handle in Fig. 1;
Fig. 9 is the left view of Fig. 8;
Figure 10 is the structural representation of dowel screw in Fig. 1.
The specific embodiment
Changeable small-taper shank cutter system as shown in Figure 1, it comprises small taper shank cutter 1, small taper shank cutter 1 is connected with transfer handle 3 by dowel screw 2.
Small taper shank cutter 1 can be little taper-shank reamer, can be also little taper-shank cutter.
As shown in Figure 2, Figure 3 and Figure 4, small taper shank cutter 1 is specifically selected little taper-shank reamer 5, taper shank 51 taperings of little taper-shank reamer 5 are 1:5.715, the surface roughness of taper shank 51 is Ra0.2 μ m, the flatness of end face 53 is 0.002mm, require and transfer handle 3 match grindings, with red lead powder check laminating degree, reach 80%.In taper shank 51 ends, be provided with symmetrical platform 52, the cutter hub core is provided with water injection hole 54, and the front end of water injection hole 54, by copper rod 510 sealing blockings, axially is provided with gib block 58 on the surface of knife bar 57, plays the cutting guide effect, and the shrinkage cavity phenomenon after can preventing from cutting.At little taper-shank reamer 5 cutter heads, be welded with polycrystalline diamond or the cubic boron nitride composite piece that 0.8mm is thick and make cutting tip 59, 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, with corresponding cutting tip 59, be respectively equipped with apopore 55 and apopore 56, apopore 56 over against cutting tip 59 is 10 °～20 ° with the angle c of knife bar 57 axis, and the apopore 55 on knife bar 57 is 25 °～30 ° with the angle d of knife bar 57 axis.
In the present invention, 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 compound sheets reaches 0.5mm.
As Fig. 5, Fig. 6 and shown in Figure 7, small taper shank cutter 1 is specifically selected conelet shank milling cutter 6, it is whole hard alloy, 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, with red lead powder check laminating degree, reaches 80%.In taper shank 61 ends, be provided with symmetrical platform 62, the cutter hub core is provided with water injection hole 67.Conelet shank milling cutter 6 cutter heads are welded with polycrystalline diamond or cubic boron nitride composite piece 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 symmetrical apopore 65 and apopore 66, 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, with the diverse location of cooling cutting tip, reaches whole cooling effect.
As shown in Figure 8 and Figure 9, transfer handle 3 can avoid small taper shank cutter 1 directly to connect with machine tool chief axis, and transfer handle 3 plays the transition anastomosis, and front end connects small taper shank cutter 1, 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.In taper hole 32 bottoms of transfer handle 3, be provided with the symmetrical boss 33 with symmetrical platform 52 or symmetrical platform 62 clamping engagement, for location and clamping, when transfer handle 3 connects with small taper shank cutter 1, symmetrical boss 33 and symmetrical platform 52 or symmetrical platform 62 clamping engagement, prevent that dowel screw 2 rotations are loosening.
Due to the surface roughness affect of the taper hole 32 of transfer handle 3 and end face 34 axially and connection precision radially, therefore, the surface roughness of taper hole 32 is Ra0.2 μ m, the flatness of end face 34 is 0.002mm, by red lead powder, checks the laminating degree to reach 80%.The material of transfer handle 3 is whole hard alloys.
As shown in figure 10, dowel screw 2 is to connect standard component, connects small taper shank cutter 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 present invention used, at first, transfer handle 3 became as a whole with HSK handle of a knife 4 pyrocondensation clampings, and then dowel screw 2 connects transfer handle 3 and little taper-shank reamer 5.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, by dowel screw 2, connect conelet shank milling cutter 6.
The present invention is not only applicable to the HSK handle of a knife and connects, and equally is applicable to staight shank connection and BT handle of a knife yet and connects.
Claims (6)
1. a changeable small-taper shank cutter system, comprise small taper shank cutter, it is characterized in that: described small taper shank cutter is connected with transfer handle by dowel screw; Small taper shank cutter is little taper-shank reamer or little taper-shank cutter, the cutter head of little taper-shank reamer is welded with polycrystalline diamond or cubic boron nitride composite piece is made cutting tip, place, the cutting plane straight line of cutting tip is lower than the knife bar center, anterior angle a is 2 °～5 °, front clearance b is 5 °～15 °, on knife bar, with corresponding cutting tip, be provided with a plurality of apopores, over against the apopore of cutting tip and the angle c of knife bar axis, be 10 °～20 °, the angle d of the apopore on knife bar and knife bar axis is 25 °～30 °; The cutter head of little taper-shank cutter is welded with polycrystalline diamond or cubic boron nitride composite piece is made cutting tip, and corresponding cutting tip is provided with symmetrical apopore, and angle e, the f of symmetrical two pairs of apopores and knife bar axis are respectively 45 ° and 60 °.
2. changeable small-taper shank cutter system as claimed in claim 1 is characterized in that: the water injection hole front end on described little taper-shank reamer is by the copper rod sealing blocking, and knife bar is axially arranged with gib block on surface.
3. changeable small-taper shank cutter system as claimed in claim 1, it is characterized in that: the cutting tip of described little taper-shank cutter is provided with chamfered edge, and chamfered edge is 20 ° * 0.1～0.13.
4. as claim 1,2 or 3 described changeable small-taper shank cutter systems, it is characterized in that: described 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 small taper shank cutter.
5. changeable small-taper shank cutter system as claimed in claim 4, it is characterized in that: the taper shank tapering of described small taper shank cutter 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 small taper shank cutter contacts with the end face of transfer handle.
6. changeable small-taper shank cutter system as claimed in claim 5, it is characterized in that: the taper shank end of described small taper shank cutter 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.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102299067A CN102284875B (en) | 2011-08-11 | 2011-08-11 | Changeable small-taper shank cutter system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102299067A CN102284875B (en) | 2011-08-11 | 2011-08-11 | Changeable small-taper shank cutter system |
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| CN102284875A CN102284875A (en) | 2011-12-21 |
| CN102284875B true CN102284875B (en) | 2013-11-20 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103028771B (en) * | 2012-12-24 | 2015-06-24 | 黄山学院 | Milling cutter capable of preventing deformation in milling process |
| JP2015066674A (en) * | 2013-10-01 | 2015-04-13 | ファナック株式会社 | Installation part structure between spindle and tool holder in machine tool |
| CN103624330A (en) * | 2013-11-15 | 2014-03-12 | 成都发动机（集团）有限公司 | Small-diameter internal reamer |
| CN107639246B (en) * | 2017-11-02 | 2024-03-15 | 北京沃尔德金刚石工具股份有限公司 | Cutter coupling mechanism and have this coupling mechanism's cutter |
| CN107717040A (en) * | 2017-11-20 | 2018-02-23 | 哈尔滨哈飞工业有限责任公司 | A kind of new solid carbide numerical control end mill for processing titanium alloy |
| CN108772601A (en) * | 2018-05-08 | 2018-11-09 | 珠海格力精密模具有限公司 | Cell phone appearance processing and forming cutter |
| CN108655768A (en) * | 2018-06-19 | 2018-10-16 | 太仓瑞鼎精密机械科技有限公司 | A kind of high-precision, the system that is located by connecting of high rigidity |
| CN109128528A (en) * | 2018-10-17 | 2019-01-04 | 基准精密工业（惠州）有限公司 | The laser processing of cutter |
| CN109332930A (en) * | 2018-10-30 | 2019-02-15 | 石家庄惠德机械工具厂 | The manufacturing method of right knife bar |
| CN114682849A (en) * | 2020-12-25 | 2022-07-01 | 苏州咖多切削刀具有限公司 | Head-replaceable reamer |
| CN215902741U (en) * | 2021-07-28 | 2022-02-25 | 科益展智能装备有限公司 | Cutter switching structure, cutter assembly, machining device and machine tool |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100143051A1 (en) * | 2007-03-23 | 2010-06-10 | Guehring Ohg | Ball raceway milling device, tool having a ball raceway milling device, and method for the application of a ball raceway milling device |
| CN101879610A (en) * | 2009-05-05 | 2010-11-10 | 南通江华机械有限公司 | Combined tool |
| CN201735859U (en) * | 2010-06-12 | 2011-02-09 | 哈尔滨量具刃具集团有限责任公司 | Whole SK, HSK handle high-speed milling cutter |
| CN201889551U (en) * | 2010-11-18 | 2011-07-06 | 郑州市钻石精密制造有限公司 | Diamond reamer with Hohl Schaft Kegel (HSK) tool holder clamping mode |
| CN202212653U (en) * | 2011-08-11 | 2012-05-09 | 郑州市钻石精密制造有限公司 | Replaceable small taper shank cutter system |
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